(19)
(11) EP 3 563 717 A1

(12) EUROPEAN PATENT APPLICATION
published in accordance with Art. 153(4) EPC

(43) Date of publication:
06.11.2019 Bulletin 2019/45

(21) Application number: 17886392.4

(22) Date of filing: 21.12.2017
(51) International Patent Classification (IPC): 
A45D 20/12(2006.01)
F26B 21/12(2006.01)
F26B 21/10(2006.01)
(86) International application number:
PCT/KR2017/015219
(87) International publication number:
WO 2018/124628 (05.07.2018 Gazette 2018/27)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
MA MD TN

(30) Priority: 28.12.2016 KR 20160180781
18.08.2017 KR 20170104731

(71) Applicant: Soonsoobaram Co., Ltd.
Cheongwon-gu, Cheongju-si Chungcheongbuk-do 28119 (KR)

(72) Inventor:
  • KIM, Min Su
    Chungcheongbuk-do 27804 (KR)

(74) Representative: Lahrtz, Fritz 
Patentanwälte Isenbruck Bösl Hörschler PartG mbB
Prinzregentenstraße 68 81675 München
Prinzregentenstraße 68 81675 München (DE)

   


(54) HAIR DRYER AND ELECTROMAGNETIC WAVE BLOCKING HEATING MEMBER APPLIED TO HAIR DRYER


(57) According to a disclosed hair dryer and an electromagnetic wave blocking heating member applied to the hair dryer, the hair dryer comprises a housing member, an air flow member, a wind guide member, and a rotation means member such that air having flowed in from the outside is guided, in a state of being concentrated without being dispersed, in a direction predetermined by the wind guide member and is changed into wind so as to be discharged to the outside, thereby drying hair in a short time by improving wind strength and air volume performance, and the heating member comprises an electric heating element, an upper radiator, a lower radiator, and a heating member connection part, wherein the electric heating element is located in an inner space formed by the upper radiator, the lower radiator, and the heating member connection part such that an electromagnetic emission of the electric heating element can be blocked.




Description

Technical Field



[0001] The present invention relates to a hair dryer and a heating member blocking electromagnetic waves applied to the hair dryer.

Background Art



[0002] A hair dryer is a device drying wet hair on the head or the like. When power is applied from an external source, the hair dryer draws ambient air, creates a flow of air therein, and discharges wind therefrom. The wind discharged from the hair dryer may be cold wind or hot wind, depending on whether or not a coil heater provided therein is operated.

[0003] The hair dryer generally includes: a housing having an air flow passage defined therein; a blower fan creating wind in the housing by drawing ambient air and discharging the wind from the housing; a motor unit rotating the blower fan; a heater disposed in the air flow passage to heat the wind by transferring heat to the wind as required.

[0004] In the case of drying wet hair, the efficiency of wind with respect to drawn air is not high, because air drawn from the outside is dispersed due to the absence of a wind guide within the housing. Thus, although it is easy to dry an outer layer of hair that is exposed externally, the hair dryer must be used for an extended period of time to dry an inner portion of the hair adjacent to the human body, e.g. the scalp, which is problematic. In addition, due to the use of the hair dryer for an extended period of time, a portion of hair may be excessively dried, leading to hair damage in which dried hair is cracked.

[0005] In addition, in the hair dryer, a heater generates heat using electric resistance of a Nichrome wire containing nickel (Ni), which is exposed without a cover, by applying electric current to the Nichrome wire. The heat, generated by the heater is transferred to the wind, thereby producing hot wind. However, such a heat-generating method emits electromagnetic waves and fine dust. When such electromagnetic waves or fine dust arrive at a portion of the human body, as well as hair on the body portion, a harmful effect to the human body may be caused. This issue has been widely discussed.

[0006] In order to overcome the above-described problems, development for improving the performance of hair dryers to realize high efficiency and block electromagnetic waves has been continuously performed. For example, patent documents, such as Korean Patent No. 10-1155135 (dated June 4, 2012; titled "LED ATTACHABLE/DETACHABLE HAIR DRYER"), Korean Patent No. 10-0998333 (dated November 29, 2010; titled "HAIR DRYER"), and Korean Registered Utility Model No. 20-0224653 (dated March 9, 2001; "HAIR DRYER BLOCKING ELECTROMAGNETIC WAVES"), may be suggested.

[0007] However, according to performance-improved hair dryers disclosed in the related art, such as the above-presented patent documents, near infrared (IR) radiation cannot reach a portion of hair adjacent to the scalp when thick and wet hair is tangled. In particular, when a female user having relatively long hair is drying the hair, the time taken for drying the hair is not substantially reduced, which is problematic.

[0008] In addition, a shield sheet is attached to an inner portion of a hair dryer in order to block harmful electromagnetic waves radiated from the inside of the hair dryer. However, when the hair dryer has been used for a long period of time, the electromagnetic interference (EMI) shielding performance of the hair dryer is deteriorated, which is problematic.

Disclosure


Technical Problem



[0009] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a hair dryer able to produce wind, the strength and flow rate of which are improved, so as to dry hair in a short period of time.

[0010] Also provided is a heater used in a hair dryer to block electromagnetic waves.

Technical Solution



[0011] According to an aspect of the present invention, a hair dryer may include: a housing including an inlet provided on an open top portion thereof, such that ambient air is drawn therethrough, an outlet through which wind created by accelerating the air drawn through the inlet is discharged; an air blower located below the inlet to draw the ambient air into the housing through the inlet; a wind guide allowing the air drawn by the air blower to flow within the housing so as to accelerate the air, so that the wind is created, and discharging the wind toward the outlet; and a rotor unit connected to the air blower to rotate the air blower. The wind guide may include: an intake top portion provided in a bottom surface to be more adjacent to the air blower than remaining portions of a bottom surface of the wind guide; a discharge bottom portion connected to the intake top portion, with a height thereof being gradually lowered, the discharge bottom portion being gradually spaced away from the air blower; and a curved guide shaped as a curved surface connecting circumferential portions of the intake top portion and discharge bottom portion, so as to concentrate the wind created from the drawn air that is accelerated while being guided from the intake top portion to the discharge bottom portion.

[0012] According to an aspect of the present invention, provided is a heater used in a hair dryer including: a housing including an inlet provided on an open top portion thereof, such that ambient air is drawn therethrough, an outlet through which wind created by accelerating the air drawn through the inlet is discharged; an air blower located below the inlet to draw the ambient air into the housing through the inlet; a wind guide allowing the air drawn by the air blower to flow within the housing so as to accelerate the air, so that the wind is created, and discharging the wind toward the outlet; and a rotor unit connected to the air blower to rotate the air blower, wherein the wind guide includes: an intake top portion provided in a bottom surface to be more adjacent to the air blower than remaining portions of a bottom surface of the wind guide; a discharge bottom portion connected to the intake top portion, with a height thereof being gradually lowered, the discharge bottom portion being gradually spaced away from the air blower; and a curved guide shaped as a curved surface connecting circumferential portions of the intake top portion and discharge bottom portion, so as to concentrate the wind created from the drawn air that is accelerated while being guided from the intake top portion to the discharge bottom portion. The heater may be able to increase a temperature of the wind as required. The heater may include: an electric heat generator generating heat in response to electric energy applied from an external source; an upper heat dissipating member mounted on a top portion of the electric heat generator to dissipate heat generated by the heat generator to an upper space; a lower heat dissipating member mounted on a bottom of the electric heat generator to dissipate heat generated by the heat generator to a lower space; and heater connectors located on both sides of the electric heat generator to connect the electric heat generator, the upper heat dissipating member, and the lower heat dissipating member to the housing. The electric heat generator may be located in an inner space surrounded by the upper heat dissipating member, the lower heat dissipating member, and the heater connectors, such that electromagnetic waves of the electric heat generator are blocked.

Advantageous Effects



[0013] According to the hair dryer according to an aspect of the present invention, since the hair dryer includes the housing, the air blower, the wind guide, and the rotor unit, air drawn from the outside is guided in a predetermined direction while maintaining a concentrated state instead of being dispersed. In this manner, the drawn air is converted into accelerated wind, which is then discharged. The wind strength and flow rate performance of the hair dryer are improved, so that hair can be dried in a short period of time.

[0014] According to the heater of the hair drier according to an aspect of the present invention, the heater includes the electric heat generator, the upper heat dissipating member, the lower heat dissipating member, and the heater connectors. The electric heat generator is located in an inner space defined by the upper heat dissipating member, the lower heat dissipating member, and the heater connectors, so that fine dust and electromagnetic waves generated by the electric heat generator can be prevented from exiting outwards.

Description of Drawings



[0015] 

FIG. 1 is a perspective view illustrating a hair dryer according to a first embodiment of the invention;

FIG. 2 is a perspective view illustrating internal components of the hair dryer according to the first embodiment of the invention;

FIG. 3 is an exploded view illustrating the hair dryer according to the first embodiment of the invention;

FIG. 4 is a perspective view illustrating the air blower, the wind guide, and the rotor unit of the hair dryer according to the first embodiment of the invention;

FIG. 5 is an exploded view of the air blower, the wind guide, and the rotor unit illustrated in FIG. 3;

FIG. 6 is a rear view of the air blower, the wind guide, and the rotor unit illustrated in FIG. 3;

FIG. 7 is a top-plan view of the air blower and the wind guide illustrated in FIG. 4;

FIG. 8 is an exploded view of the rotor unit of the hair dryer according to the first embodiment of the invention;

FIG. 9 is a perspective view illustrating the heater of the hair dryer according to the first embodiment of the invention;

FIG. 10 is an exploded view of the heater illustrated in FIG. 9;

FIG. 11 is an enlarged view of portion A in FIG. 10;

FIG. 12 is a front view illustrating a protrusion hood of a hair dryer according to a second embodiment of the present invention;

FIG. 13 is a bottom perspective view of the protrusion hood of the hair dryer according to the second embodiment of the present invention;

FIG. 14 is a front view illustrating a hook hood of a hair dryer according to a third embodiment of the present invention;

FIG. 15 is a top perspective view of the hook hood of the hair dryer according to the third embodiment of the present invention; and

FIG. 16 is a front partial cross-sectional view illustrating a noise reducing member of a rotor unit of a hair dryer according to a fourth embodiment of the present invention.


Best Mode



[0016] Hereinafter, a hair dryer according to an embodiment of the invention will be described with reference to the accompanying drawings.

[0017] FIG. 1 is a perspective view illustrating a hair dryer according to a first embodiment of the invention, FIG. 2 is a perspective view illustrating internal components of the hair dryer according to the first embodiment of the invention, FIG. 3 is an exploded view illustrating the hair dryer according to the first embodiment of the invention, FIG. 4 is a perspective view illustrating the air blower, the wind guide, and the rotor unit of the hair dryer according to the first embodiment of the invention, FIG. 5 is an exploded view of the air blower, the wind guide, and the rotor unit illustrated in FIG. 3, FIG. 6 is a rear view of the air blower, the wind guide, and the rotor unit illustrated in FIG. 3, FIG. 7 is a top-plan view of the air blower and the wind guide illustrated in FIG. 4, FIG. 8 is an exploded view of the rotor unit of the hair dryer according to the first embodiment of the invention, FIG. 9 is a perspective view illustrating the heater of the hair dryer according to the first embodiment of the invention, FIG. 10 is an exploded view of the heater illustrated in FIG. 9, and FIG. 11 is an enlarged view of portion A in FIG. 10.

[0018] Referring to FIGS. 1 to 11, the hair dryer 100 is configured to dry hair, and includes a housing 111 and 115, an air blower 120, a wind guide 160, and a rotor unit 140.

[0019] The term "hair" used herein means hair protruding from the skin of the human body. Although term "hair" in the hair dryer 100 according to the present embodiment refers to the hair of the head of the human from among various types of hair, this is merely illustrative, and the term is not limited to the hair of the human.

[0020] According to the present embodiment, the hair dryer 100 further includes a heater 150, a temperature sensor 105, a function selector 173, and a controller 176.

[0021] The housing 111 and 115 include an inlet 114 and 117 provided on an open top portion thereof, such that ambient air is drawn therethrough, an outlet 182 and 184 through which wind, created by accelerating the air drawn through the inlet 114 and 117, is discharged.

[0022] According to the present embodiment, the housing 111 and 115 further includes backflow prevention protrusions 181 and 183.

[0023] More specifically, the housing 111 and 115 is made of a synthetic resin, such as plastic, and is comprised of a first housing section 111 and a second housing section 115 provided separately. When the first housing section 111 and the second housing section 115 are connected to each other or fitted to each other, a hollow inner space is defined, such that components can be accommodated in the inner space.

[0024] The first housing section 111 includes: a first handle portion 112 extending a predetermined length, allowing a user to hold the handle portion 112 by a hand to adjust the position and direction thereof; a first body 113 having a wind flow passage defined therein; a first inlet-forming hole 114 provided as an open area in a portion of one end portion of the first body 113; and a first outlet-forming hole 182 provided as an open area in a portion of the other end portion of the first body 113.

[0025] The second housing section 115 includes: a second handle portion 116 extending a predetermined length, allowing a user to hold the handle portion 116 by a hand to adjust the position and direction thereof; a second body 118 having a wind flow passage defined therein; a second inlet-forming hole 117 provided as an open area in a portion of one end portion of the first body 113; and a second outlet-forming hole 184 provided as an open area in a portion of the other end portion of the first body 113.

[0026] When the first housing section 111 and the second housing section 115 are fitted to each other, an open portion of the first inlet-forming hole 114 and an open portion of the second inlet-forming hole 117 are connected to each other in a corresponding manner, thereby forming a circular open area serving as an entrance. The open area provided as above forms the inlet 114 and 117.

[0027] In addition, when the first housing section 111 and the second housing section 115 are fitted to each other, an open portion of the first outlet-forming hole 182 and an open portion of the second outlet-forming hole 184 are connected to each other in a corresponding manner, thereby forming a circular open area serving as an exit. The open area provided as above forms the outlet 182 and 184.

[0028] According to the present embodiment, the inlet 114 and 117 and the outlet 182 and 184 are located to be perpendicular to each other. Then, the air drawn while flowing downwards in the vertical direction forms rotating wind within the housing 111 and 115. Since the wind created in this manner additionally has rotating force due to the rotation, the rotating wind may be stronger than wind discharged after having been drawn in a horizontal direction, created by a typical hair dryer.

[0029] In addition, the inlet 114 and 117 is provided a hollow circular portion, with the inner surface of the inlet 114 and 117 having a shape conforming to that of the circumferential portion of the wind guide 160. Accordingly, this configuration can prevent wind created by the wind guide 160 from leaking through a space between the inlet 114 and 117 and the wind guide 160.

[0030] In addition, the inlet 114 and 117 has a greater size than the other components of the housing 111 and 115, such that a greater amount of air can be drawn. The first handle 112 and the second handle portion 116, provided below the inlet 114 and 117, have a smaller size than the inlet 114 and 117, but are extended in length, such that the user can easily hold the handle by a hand.

[0031] Reference numeral 10 indicates a power cable connected to an external power source to supply electricity to the hair dryer 100. Reference numeral 102 is an impurity filter provided in the form of a net to filter impurities so that, when air is drawn into the hair dryer 100, impurities do not enter along with the air.

[0032] In addition, reference numeral 101 is a hood connected to the end portion of the outlet 182 and 184 of the housing 111 and 115 to concentrate wind and form a passage of the wind, so that the wind can be concentrated in a specific position while being discharged through the outlet 182 and 184.

[0033] According to the present embodiment, the first handle portion 112 and the first body 113, as well as the second handle portion 116 and the second body 118, are provided as integral portions. Alternatively, these components may be provided as foldable components that can be folded while being separated as two portions in order to minimize a storage space thereof.

[0034] The backflow prevention protrusions 181 and 183 protrude a predetermined length within the housing 111 and 115 to allow the wind, created by the wind guide 160, to flow in the direction of the outlet 182 and 184, but prevent the wind from flowing backwards or entering in the direction of the wind guide 160 from the outlet 182 and 184.

[0035] Specifically, the backflow prevention protrusions 181 and 183 include a first backflow prevention protrusion 181 and a second backflow prevention protrusion 183. The first backflow prevention protrusion 181 is located on a portion of the first body 113 to be more adjacent to the air blower 120, and protrudes from the top surface of the first body 113 in a vertical direction, extending to a height spaced apart from the bottom surface of the first housing section 111 by a predetermined distance. The second backflow prevention protrusion 183 is located on a portion of the second body 118 to be more adjacent to the air blower 120, and protrudes from the top surface of the second body 118 in a vertical direction, extending to a height spaced apart from the bottom surface of the second housing section 115 by a predetermined distance.

[0036] When the wind, created by the acceleration of the air during passing by the wind guide 160, has passed from the wind guide 160, the wind is dispersed within the first body 113 and the second body 118. The dispersed wind may collide with the inner wall of the first body 113 and the second body 118. Then, the wind may re-enter the wind guide 160 while flowing backwards.

[0037] The first backflow prevention protrusion 181 and the second backflow prevention protrusion 183 provide walls within the first housing section 111 and the second housing section 115, so as to prevent the wind from reentering the wind guide 160 while flowing backwards.

[0038] The air blower 120 is located below the inlet 114 and 117 to draw ambient air into the housing 111 and 115 through the inlet 114 and 117.

[0039] Specifically, the air blower 120 includes a rotor body 121 rotating about the axis of rotation and a plurality of rotor blades 122 provided on circumferential portions of the rotor body 121, with rotor blades 122 of the plurality of rotor blades 122 being spaced apart from each other at certain distances.

[0040] The rotor body 121 is provided in the form of a hollow cylinder, and the rotor unit 140, which will be described later, is inserted into the rotor body 121. The plurality of rotor blades 122 is provided as plates each having a predetermined area, the plates radially extending from the circumferential portions of the rotor body 121. The rotor body 121 and the plurality of rotor blades 122 are rotated by the rotor unit 140, allowing ambient air to be drawn into the housing 111 and 115.

[0041] In addition, in the rotor body 121, an intake hole 123 extends through the upper central portion, such that a portion of the air drawn into the inlet is introduced therethrough. A discharge hole 124 is provided in the rotor body 121 to communicate with the intake hole 123, and extends in a direction in which the outlet 182 and 184 is formed, such that a portion of the air that has passed through the intake hole 123 is discharged therethrough.

[0042] Specifically, as illustrated in FIGS. 4 and 5, the intake hole 123 extends through the central portion of the rotor body 121 to a predetermined depth in the vertical direction. The discharge hole 124 communicates with the intake hole 123 while being perpendicularly bent from the intake hole 123. The discharge hole 124 extends in the same direction in which the outlet 182 and 184 is formed.

[0043] The diameter of either the intake hole 123 or the discharge hole 124 is set to be smaller than the size of the air blower 120, such that a vortex air flow is created when the air portion drawn into the intake hole 123 is discharged through the discharge hole 124. The vortex air flow pushes the wind created by the wind guide 160, which will be described later, thereby increasing the speed of the wind. Accordingly, it is possible to increase the efficiency of the hair dryer 100 while reducing the load of the air blower 120.

[0044] In addition, the plurality of rotor blades 122 respectively has a recess 125 in a portion of the outermost surface thereof. In each of the plurality of rotor blades 122, the recess 125 is depressed with respect to the other portions of the outermost surface in order to increase the flow rate of the wind pushed by the plurality of rotor blades 122.

[0045] Specifically, unlike rotor blades of a typical turbine, the plurality of rotor blades 122 has increased strength due to the recess 125 formed in substantially the central portion of the outermost portion of each rotor blade 122. Due to this configuration, the plurality of rotor blades 122 can firmly support itself while pushing the wind, and vibration and noise produced during the rotation of the plurality of rotor blades 122 can be reduced.

[0046] The wind guide 160 includes an intake higher-surface portion 162, a discharge bottom portion 163, and a curved guide 161. The intake higher-surface portion 162 is a portion of the bottom surface of the wind guide 160, which is more adjacent to the air blower 120 than the remaining portions of the bottom surface. The discharge bottom portion 163 is connected to the intake higher-surface portion 162, with the height thereof being gradually lowered, and is gradually spaced away from the air blower 120. The curved guide 161 has the shape of a curved surface connecting the circumferential portions of the intake higher-surface portion 162 and discharge bottom portion 163, so as to concentrate the wind created from the drawn air that is accelerated while being guided from the intake higher-surface portion 162 to the discharge bottom portion 163.

[0047] As illustrated in FIG. 7, the width between the intake higher-surface portion 162 and the discharge bottom portion 163 is set to be narrower than the diameter of the wind guide 160, corresponding to the maximum-width thereof, such that the wind is not dispersed before being discharged from the wind guide 160 after having been created.

[0048] In addition, with respect to the direction illustrated in FIG. 7, the intake higher-surface portion 162 is located to the left, and the discharge bottom portion 163 is located to the right. The height of the discharge bottom portion 163 is gradually lowered with respect to the height of the intake higher-surface portion 162. Accordingly, the inner surface (of the wind guide 160) is inclined like an inclined surface of a screw.

[0049] Due to the above-described configuration, a space between the air blower 120 and the discharge bottom portion 163 gradually increases in a space defined between the air blower 120 and the intake higher-surface portion 162, in the direction from the intake higher-surface portion 162 to the discharge bottom portion 163. In this space, the wind created by the rotation and the acceleration gradually accumulates, such that the amount of the wind gradually increases, in the direction from the intake higher-surface portion 162 to the discharge bottom portion 163. Finally, the wind having a maximized amount is discharged through the discharge bottom portion 163, so that the flow rate of the hair dryer 100 is increased.

[0050] The curved guide 161 is a sidewall having a predetermined height, extending along the curved surfaces of the intake higher-surface portion 162 and the discharge bottom portion 163, so as to prevent the rotating wind from being dispersed. Thus, the overall shape of the wind guide 160 is similar to that of a bowl.

[0051] Reference numeral 164 is a circular wind guide through-hole extending through the central portion of the curved guide 161, such that the rotor unit 140 is inserted into the wind guide through-hole 164 to be connected to the air blower 120.

[0052] Reference numeral 165 is a wind guide holder to which the rotor unit 140 is connected. The wind guide holder 165 fixes the rotor unit 140, the wind guide 160, and the housing 111 and 115 connected to each other.

[0053] Reference numeral 166 is a wall provided on a bottom portion of the intake higher-surface portion 162 in order to prevent a portion of the concentrated and accumulated wind from moving backwards to the intake higher-surface portion 162 due to the vortex flow when the wind is discharged from the discharge bottom portion 163.

[0054] In addition, according to the present embodiment, the wind guide 160 further includes a boundary portion 167 by which the curved guide 161 is connected to the inner surface extending from the intake higher-surface portion 162 to the discharge bottom portion 163.

[0055] The intake higher-surface portion 162 and the discharge bottom portion 163 are provided as a connected curved surface surrounding the wind guide through-hole 164, with the width gradually decreasing in the direction from the intake higher-surface portion 162 to the discharge bottom portion 163.

[0056] The curved guide 161 is shaped as a curved surface surrounding the intake higher-surface portion 162 and the discharge bottom portion 163, with the wind guide through-hole 164 being located in the central portion. The curved surface of the curved guide 161 gradually widens as extending from a portion connected to the intake higher-surface portion 162 to a portion connected to the discharge bottom portion 163.

[0057] Thus, the boundary portion 167 is shaped as a circular portion extending around the center of the wind guide through-hole 164. The boundary portion 167 gradually approaches the wind guide through-hole 164 in the direction from the intake higher-surface portion 162 to the discharge bottom portion 163. One end portion of the boundary portion 167 is in the same direction as the discharging direction of the discharge bottom portion 163.

[0058] Due to the above-described configuration, in a portion adjacent to the intake higher-surface portion 162, the area between the boundary portion 167 and the intake higher-surface portion 162 is formed relatively wide, such that a large amount of air can be drawn therethrough. In the discharge bottom portion 163, the space between the boundary portion and the discharge bottom portion 162 is formed relatively narrow, such that the movement of the air can be accelerated, so that the speed of the wind can be further relatively increased when the wind is created.

[0059] In addition, since both the discharge direction of the discharge bottom portion 163 and the direction of the end portion of the boundary portion 167 are the same as the direction of the outlet 182 and 184, the boundary portion 167 can guide the wind so that the accelerated wind can smoothly move toward the outlet 182 and 184.

[0060] In addition, the accelerated wind is created in the space between the wind guide 160 and the air blower 120, since the wind guide 160 is located below the air blower 120. According to this configuration, it is possible to increase the flow rate of the wind while reducing the wind-creating space, compared to a related-art hair dryer in which the wind is created in a side space of a blower fan.

[0061] Although the present embodiment has been described that the air blower 120 and the wind guide 160 are applied to the hair dryer 100, this is merely illustrative, and the air blower 120 and the wind guide 160 may be used in an air purifier, a humidifier, a ventilator, etc.

[0062] The rotor unit 140 is a structure connected to the air blower 120 to rotate the air blower 120. The rotor unit 140 includes a rotor 141 rotating the air blower 120 and a rotor housing 143 accommodating and protecting the rotor 141.

[0063] According to the present embodiment, the rotor unit 140 further includes a rotor noise reducing member 142 disposed between the rotor housing 143 and the rotor 141.

[0064] The rotor housing 143 is made of a Permalloy to prevent electromagnetic waves generated by the rotor 141 from exiting.

[0065] Here, the Permalloy is an alloy of nickel (Ni) and iron (Fe), having a significantly high level of permeability. The high level of permeability may increase absorption loss, thereby providing a shield to block electromagnetic waves.

[0066] The rotor 141 is directly connected to the air blower 120 to rotate the air blower 120, and may be implemented as an electric motor.

[0067] The rotor noise reducing member 142 is made of a metal, such as aluminum (Al) or stainless steel, and is in the shape of a plate having a predetermined area to surround the rotor 141 in the circumferential direction. The rotor noise reducing member 142 may block noise produced during rotation of the rotor 141, so that the noise does not spread outwards.

[0068] The heater 150 is disposed on a path along which the wind blows, and is able to increase the temperature of the wind as required. The wind is heated by the heater 150, thereby generating hot wind.

[0069] Specifically, the heater 150 includes an electric heat generator 151 generating heat in response to electric energy applied from an external source, an upper heat dissipating member 145 mounted on the top portion of the electric heat generator 151 to dissipate heat generated by the heat generator 151 to an upper space, a lower heat dissipating member 155 mounted on the bottom of the electric heat generator 151 to dissipate heat generated by the heat generator 151 to a lower space, and heater connectors 152 located on both sides of the electric heat generator 151 to connect the electric heat generator 151, the upper heat dissipating member 145, and the lower heat dissipating member 155 to the housing 111 and 115.

[0070] The electric heat generator 151 generates heat in response to electric power supplied from an external source. The electric heat generator 151 may be implemented as an electric heater, such as a positive temperature coefficient (PTC) heater, so as to prevent production of fine dust in the electric heat generator 151.

[0071] Reference numeral 185 indicates power connecting lines through which electric power is supplied from an external source.

[0072] The upper heat dissipating member 145 includes an upper heat dissipating member body 146 covering the top portion of the electric heat generator 151 and a plurality of upper heat dissipating fins 147 extending upward from the body of the upper heat dissipating member 145 to predetermined lengths in the vertical direction.

[0073] In addition, each of the upper heat dissipating fins 147 has an upper bent protrusion 148 provided on an outer end portion thereof. The upper bent protrusion 148 is bent with respect to the length of the upper heat dissipating fin 147 to a predetermined angle, and is in contact with a portion of an adjacent upper heat dissipating fin 147. Accordingly, the upper bent protrusions 148 may maintain the distances between the adjacent upper heat dissipating fins 147 and increase the strength of the upper heat dissipating fins 147, thereby preventing the vibration of the upper heat dissipating fins 147.

[0074] The lower heat dissipating member 155 includes a lower heat dissipating member body 156 covering the bottom of the electric heat generator 151 and a plurality of lower heat dissipating fins 157 extending downward from the lower heat dissipating member body 156 to predetermined lengths in the vertical direction.

[0075] In addition, each of the lower heat dissipating fins 157 has a lower bent protrusion 158 provided on an outer end portion thereof. The lower bent protrusion 158 is bent with respect to the length of the lower heat dissipating fin 157 to a predetermined angle, and is in contact with a portion of an adjacent lower heat dissipating fin 157. Accordingly, the lower bent protrusions 158 may maintain the distances between the adjacent lower heat dissipating fins 157 and increase the strength of the lower heat dissipating fins 157, thereby preventing the vibration of the lower heat dissipating fins 157.

[0076] The heater connectors 152 are connected to the upper heat dissipating member 145 and the lower heat dissipating member 155, on both sides of the electric heat generator 151, to cover both side surfaces of the electric heat generator 151 and connect the electric heat generator 151, the upper heat dissipating member 145, and the lower heat dissipating member 155 to the housing 111 and 115.

[0077] Specifically, each of the heater connectors 152 has a plurality of connecting projections 186 extending in the direction of the path of the wind to be spaced apart from each other. The connecting projections 186 may be fitted into conforming connecting grooves (not shown) provided in the inner surfaces of the housing 111 and 115, such that the heater connectors 152 can be fixed to the housing 111 and 115.

[0078] In the electric heat generator 151, electromagnetic waves are relatively blocked, compared to the case of a coil-shaped heat generator of the related art including a Nichrome wire having high electrical resistance. In addition, since the electric heat generator 151 is located in the inner space surrounded by the upper heat dissipating member 145, the lower heat dissipating member 155, and the heater connectors 152, the electromagnetic waves of the electric heat generator 151 can be double-blocked.

[0079] In addition, since the electric heat generator 151 is surrounded by the upper heat dissipating member 145, the lower heat dissipating member 155, and the heater connectors 152, the discharge of fine dust, which would otherwise be produced from the related-art coil-shaped heat generator including a Nichrome wire, can be double-prevented.

[0080] The temperature sensor 105 is disposed adjacent to the outlet 182 and 184 to detect the temperature of the wind discharged through the outlet 182 and 184. According to the present embodiment, the temperature sensor 105 may be provided in contact with the inner surface of the housing 111 and 115 to detect the temperature of the wind in the space that has passed through the heater 150 directly before the wind is discharged through the outlet 182 and 184.

[0081] The function selector 173 includes a wind strength adjusting and selecting means for selecting the adjustment of the strength of the wind discharged through the outlet 182 and 184, a temperature adjusting and selecting means for selecting the adjustment of the temperature of the wind discharged through the outlet 182 and 184, and a time setting and selecting means for selecting a time adjustment such that an operation is performed for a predetermined time. The wind strength adjusting and selecting means, the temperature adjusting and selecting means, and the time setting and selecting means are provided with buttons 187, respectively.

[0082] When the user selects a wind strength using the wind strength adjusting and selecting means, an instruction is transferred to the rotor unit 140 by the controller 176, which will be described later. Then, the speed of rotation of the rotor unit 140 can be adjusted according to the instruction, thereby adjusting the strength of the wind.

[0083] In addition, when the user selects any temperature using the temperature adjusting and selecting means, an instruction is transferred to the heater 150 by the controller 176. Then, the amount of heat generated by the heater 150 can be adjusted, so that the temperature of the wind discharged through the outlet 182 and 184 can be adjusted.

[0084] In addition, when the user selects any time using the temperature adjusting and selecting means, a corresponding instruction is transferred to the controller 176. In response to the instruction, the controller 176 can cut off the supply of power after a predetermined time, so that the hair dryer 100 can operate for the predetermined time.

[0085] The button 187 of the function selector 173 may be, for example, a push button or a touch button protruding from the housing 111 and 115.

[0086] In addition, the function selector 173 further includes a display 188 displaying set values so that the user can easily check the values set using the buttons 187.

[0087] The controller 176 controls the air blower 120 and the heater 150 according to values previously selected by the function selector 173.

[0088] Specifically, the controller 176 includes a control configuration 177 including electronic components and a controller housing 178 having a hollow space defined therein to accommodate and protect the control configuration 177 therein.

[0089] The controller housing 178 is made of a Permalloy, as described above, to prevent electromagnetic waves generated by the control configuration 177 from exiting the controller housing 178.

[0090] A housing noise reducing member 179 is further provided on the inner surface of the controller housing 178. The housing noise reducing member 179 is made of a metal, such as aluminum (Al) or stainless steel, and is provided as a plate having a predetermined area to cover the inner surface of the controller housing 178. Accordingly, noise produced by the control configuration 177 can be prevented from spreading outwards.

[0091] Although the present embodiment has been illustrated that both the rotor housing 143 and the controller housing 178 are made of a Permalloy, this is merely illustrative, and only one of the rotor housing 143 and the controller housing 178 may be made of a Permalloy to block electromagnetic waves.

[0092] In addition, although the present embodiment has been illustrated that the rotor unit 140 and the controller 176 include the rotor noise reducing member 142 and the housing noise reducing member 179, respectively, this is merely illustrative, and only one of the rotor noise reducing member 142 and the housing noise reducing member 179 may include the noise reducing member 142 or 179 therein to prevent noise, generated by the rotor 141 or the control configuration 177, from spreading outwards.

[0093] Hereinafter, the operation of the hair dryer 100 will be described in brief.

[0094] First, the user connects the power cable 10 of the hair dryer 100 to an external power source, allowing electric power from the external power source to be applied to the hair dryer 100.

[0095] Afterwards, the rotor unit 140 rotates and the air blower 120, connected to the rotating shaft of the rotor unit 140, rotates along with the rotor unit 140, so that ambient air is drawn into the hair dryer 100.

[0096] When the ambient air is drawn, external impurities are filtered by the impurity filter 102, so that only the air is drawn.

[0097] Afterwards, while the drawn air is being guided from the intake higher-surface portion 162 to the discharge bottom portion 163, the movement of the air is accelerated, thereby creating wind. In the space between the air blower 120 and the intake higher-surface portion 162, the space defined between the air blower 120 and the discharge bottom portion 163 is gradually increased. In this space, the wind created due to the rotation and the acceleration gradually accumulates, such that the amount of the wind gradually increases, in the direction from the intake higher-surface portion 162 to the discharge bottom portion 163. Finally, the wind having a maximized amount is discharged through the discharge bottom portion 163.

[0098] Subsequently, the wind, discharged from the discharge bottom portion 163, moves to the outlet 182 and 184 by flowing through the inside of the housing 111 and 115. Due to the shape of the hood 101 connected to the outlet 182 and 184, the wind may be concentrated to a specific position of the hair to dry the hair.

[0099] Here, when the user selects a high temperature using the function selector 173, the electric heat generator 151 of the heater 150, disposed in the path along which the wind flows, generates heat. Then, the heat is discharged through the upper heat dissipating member 145 and the lower heat dissipating member 155 to be transferred to the wind, so that hot wind can be discharged.

[0100] In addition, when the user selects at least one of the temperature adjusting and selecting means, the time setting and selecting means, and the wind strength adjusting and selecting means using the function selector 173, the controller 176 controls the hair dryer 100 according to the user's selection, so that the hair dryer 100 operates under the control of the controller 176.

[0101] As described above, since the hair dryer 100 includes the housing 111 and 115, the air blower 120, the wind guide 160, and the rotor unit 140, air drawn from the outside is guided in a predetermined direction while maintaining a concentrated state instead of being dispersed. In this manner, the drawn air is converted into accelerated wind, which is then discharged. The wind strength and flow rate performance of the hair dryer 100 are improved, so that hair can be dried in a short period of time.

[0102] In addition, the heater 150 of the hair dryer 100 includes the electric heat generator 151, the upper heat dissipating member 145, the lower heat dissipating member 155, and the heater connectors 152. The electric heat generator 151 is located in the inner space defined by the upper heat dissipating member 145, the lower heat dissipating member 155, and the heater connectors 152, so that fine dust and electromagnetic waves generated by the electric heat generator 151 can be prevented from exiting outwards.

Mode for Invention



[0103] Hereinafter, hair dryers according to other embodiments of the present invention will be described with reference to the drawings. In the following, descriptions of some features will be omitted, when they are identical to those of the above-described first embodiment of the present invention.

[0104] FIG. 11 is a front view illustrating a protrusion hood of a hair dryer according to a second embodiment of the present invention, and FIG. 12 is a bottom perspective view of the protrusion hood of the hair dryer according to the second embodiment of the present invention.

[0105] Referring to FIGS. 11 and 12, according to the present embodiment, the hair dryer includes a protrusion hood 201 including a protrusion hood body 202, a protrusion hood cover 203, first hair pins 204, and second hair pins 205.

[0106] The protrusion hood body 202 is disposed on one end portion of the outlet. The protrusion hood body 202 has a hollow portion extending through the interior thereof to communicate with the inside of the housing member.

[0107] As illustrated in FIG. 11, the protrusion hood body 202 is shaped to conform to the shape of a curved portion of the human body, e.g. the head of the human, for which the hair dryer is used. Accordingly, the protrusion hood 201 can be brought adjacently to the curved portion along the shape of the head, so as to dry the hair located in a relatively wide area.

[0108] The protrusion hood cover 203 covers the front surface of the protrusion hood body 202. A plurality of wind holes 206 spaced apart from each other are provided in the protrusion hood cover 203.

[0109] The plurality of wind holes 206 are arranged in the protrusion hood cover 203 in the shape of the letter "V" and are spaced apart from each other. Accordingly, in an area below the protrusion hood 201, the hair can be dried in a concentrated manner. In an area above the protrusion hood 201, the hair in a relatively-wide area can be dried.

[0110] The first hair pins 204 protrude perpendicularly from the front surface of the protrusion hood cover 203 by a predetermined length.

[0111] The second hair pins 205 protrude perpendicularly from the front surface of the protrusion hood cover 203 by a predetermined length. The second hair pins 205 are shorter than the first hair pins 204.

[0112] Since the first hair pins 204 are in contact with the portion of the human body for which the hair dryer is used, as described above, the predetermined distance between the portion of the human body and the protrusion hood cover 203 may be maintained, and the hair on the portion of the human body may be combed by the second hair pins 205.

[0113] In addition, while the hair is being dried, the portion of the human body, e.g. the scalp, can be lightly tapped with the first hair pins 204, so that the scalp can be provided with a massage effect.

[0114] FIG. 13 is a front view illustrating a hook hood of a hair dryer according to a third embodiment of the present invention, and FIG. 14 is a top perspective view of the hook hood of the hair dryer according to the third embodiment of the present invention.

[0115] Referring to FIGS. 13 and 14, according to the present embodiment, the hair dryer includes a hook hood 301. The hook hood 301 includes a hook hood body 302, upper bars 303, upper hooks 304, lower bars 305, and lower hooks 306.

[0116] The hook hood body 302 is mounted on an end portion of the outlet. The hook hood body 302 has a hollow portion extending through the interior thereof to communicate with the inside of the housing member.

[0117] The upper bars 303 protrude from the front surface of the hook hood body 302 by a predetermined length, at angles inclined in predetermined directions. The upper hooks 304 are bent from distal ends of the upper bars 303 in predetermined directions, so as to be inclined at greater angles than the upper bars 303.

[0118] The lower bars 305 protrude from the front surface of the hook hood body 302 by a predetermined length, in particular, from portions of the front surface spaced apart from the upper bars 303, at angles inclined in predetermined directions. The lower hooks 306 are bent from distal ends of the lower bars 305 to be inclined. The lower hooks 306 are bent in the same direction as the upper hooks 304.

[0119] Since the upper bars 303 are longer than the lower bars 305, the hook hood body 302 can be brought adjacently to the portion for which the hair dryer is used, for example, the curved portion along the shape of the head. Accordingly, the hair can be efficiently combed.

[0120] The upper hooks 304 and the lower hooks 306 are bent in the same direction, but opposite to the direction in which the hair hangs due to the weight thereof, so that the hook hood 301 can be prevented from being caught by the hair or the surface of the head while the hair is being combed.

[0121] When the hook hood 301 is configured as described above, the hair, growing on the portion of the human body for which the hair dryer is used, may be combed by the upper bars 303 and the lower bars 305. A portion of the hair is lifted up to a predetermined height, caught by the upper hooks 304 and the lower books 306, so that the hair can be combed without being tangled while the hair, as well as at least one of the portion of the human body and the portion on which the hair is growing, is being dried.

[0122] In addition, since the hair is dried in a state in which the portion of the hair is lifted up with the upper hooks 304 and the lower hooks 306, a variety of hair styles can be produced.

[0123] FIG. 15 is a front partial cross-sectional view illustrating a noise reducing member of a rotor unit of a hair dryer according to a fourth embodiment of the present invention.

[0124] Referring to FIG. 15, according to the present embodiment, a wind guide 460 of the hair dryer includes an annular first mount 446 provided in a bottom portion of the wind guide 460. A rotor unit 440 includes an annular second mount 448 provided on a circumferential portion to correspond to the first mount 446. An elastic member 447 is located between the first mount 446 and the second mount 448. The elastic member 447 is repeatedly compressed or restored, in response to the operation of the rotor.

[0125] The first mount 446 may be connected to the wind guide 460 by means of assembly, welding, etc., while the second mount 448 may be connected to the circumferential portion of the rotor unit 440 by means of assembly, welding, etc.

[0126] The elastic member 447 may be a spring or the like. A plurality of the elastic members 447 may preferably be disposed between the first mount 446 and the second mount 448 to be spaced apart from each other, so as to simultaneously reduce the vibration of the rotor unit 440.

[0127] Since the hair dryer includes the first mount 446, the second mount 448, and the elastic member 447, the vibration and noise produced by the operation of the rotor may be removed by the elastic force of the elastic member 447. Accordingly, the vibration and noise produced by the rotor is prevented from being transferred to the wind guide 460.

[0128] In addition, according to the present embodiment, a vibration proof pad 449 may further be provided between the wind guide 460 and the first mount, so that the vibration of the rotor unit 440 can be double-prevented from being transferred to the wind guide 460.

[0129] While the present invention has been illustrated and described with respect to the specific exemplary embodiments, it will be apparent to a person having ordinary skill in the art that many modifications and variations are possible without departing from spirit and scope of the present disclosure defined by the appended claims. It is definitely noted that such modifications and variations are included within the scope of the present disclosure.

Industrial Applicability



[0130] In the hair dryer according to an aspect of the present invention, electromagnetic waves produced by the heater of the hair dryer can be blocked. In addition, the wind guide can accelerate the speed of air while rotating the air, and thus, the wind strength of the hair dryer can be increased, so that hair can be dried in a short period of time. It is possible to block electromagnetic waves produced by the electric heat generator surrounded by the upper heat dissipating member, the lower heat dissipating member, and the heater connectors. Therefore, present invention is regarded as having high industrial applicability.


Claims

1. A hair dryer comprising:

a housing comprising an inlet provided on an open top portion thereof, such that ambient air is drawn therethrough, an outlet through which wind created by accelerating the air drawn through the inlet is discharged;

an air blower located below the inlet to draw the ambient air into the housing through the inlet;

a wind guide allowing the air drawn by the air blower to flow within the housing so as to accelerate the air, so that the wind is created, and discharging the wind toward the outlet; and

a rotor unit connected to the air blower to rotate the air blower,

wherein the wind guide comprises:

an intake top portion provided in a bottom surface to be more adjacent to the air blower than remaining portions of a bottom surface of the wind guide;

a discharge bottom portion connected to the intake top portion, with a height thereof being gradually lowered, the discharge bottom portion being gradually spaced away from the air blower; and

a curved guide shaped as a curved surface connecting circumferential portions of the intake top portion and discharge bottom portion, so as to concentrate the wind created from the drawn air that is accelerated while being guided from the intake top portion to the discharge bottom portion.


 
2. The hair dryer according to claim 1, further comprising:

a heater disposed on a path along which the wind blows, and is able to increase the temperature of the wind as required;

a temperature sensor disposed adjacent to the outlet to detect the temperature of the wind discharged through the outlet;

a function selector comprising a wind strength adjusting and selecting means for selecting an adjustment of the strength of the wind discharged through the outlet, a temperature adjusting and selecting means for selecting an adjustment of the temperature of the wind discharged through the outlet, and a time setting and selecting means for selecting a time adjustment such that an operation is performed for a predetermined time; and

a controller controlling the air blower and the heater according to a value previously selected by the function selector.


 
3. The hair dryer according to claim 2, wherein the air blower comprises:

a rotor body rotating about an axis of rotation; and

a plurality of rotor blades provided on circumferential portions of the rotor body, with rotor blades of the plurality of rotor blades being spaced apart from each other at predetermined distances,

wherein the rotor body comprises:

an intake hole extending through an upper central portion, such that a portion of the air drawn into the inlet is introduced therethrough; and

a discharge hole communicating with the intake hole, and extending in a direction in which the outlet is provided, such that a portion of the air that has passed through the intake hole is discharged therethrough,

wherein each of the plurality of rotor blades comprises a recess in a portion of an outermost surface thereof, the recess being depressed with respect to remaining other portions of the outermost surface in order to increase a flow rate of the wind pushed by the plurality of rotor blades.


 
4. The hair dryer according to claim 3, wherein backflow prevention protrusions protrude a predetermined length from inner portions of the housing to allow the wind created by the wind guide to flow in a direction of the outlet while preventing the wind from flowing backwards or entering in a direction of the wind guide from the outlet.
 
5. A heater used in a hair dryer comprising: a housing comprising an inlet provided on an open top portion thereof, such that ambient air is drawn therethrough, an outlet through which wind created by accelerating the air drawn through the inlet is discharged; an air blower located below the inlet to draw the ambient air into the housing through the inlet; a wind guide allowing the air drawn by the air blower to flow within the housing so as to accelerate the air, so that the wind is created, and discharging the wind toward the outlet; and a rotor unit connected to the air blower to rotate the air blower, wherein the wind guide comprises: an intake top portion provided in a bottom surface to be more adjacent to the air blower than remaining portions of a bottom surface of the wind guide; a discharge bottom portion connected to the intake top portion, with a height thereof being gradually lowered, the discharge bottom portion being gradually spaced away from the air blower; and a curved guide shaped as a curved surface connecting circumferential portions of the intake top portion and discharge bottom portion, so as to concentrate the wind created from the drawn air that is accelerated while being guided from the intake top portion to the discharge bottom portion, the heater being able to increase a temperature of the wind as required,
the heater comprising:

an electric heat generator generating heat in response to electric energy applied from an external source;

an upper heat dissipating member mounted on a top portion of the electric heat generator to dissipate heat generated by the heat generator to an upper space;

a lower heat dissipating member mounted on a bottom of the electric heat generator to dissipate heat generated by the heat generator to a lower space; and

heater connectors located on both sides of the electric heat generator to connect the electric heat generator, the upper heat dissipating member, and the lower heat dissipating member to the housing,

wherein the electric heat generator is located in an inner space surrounded by the upper heat dissipating member, the lower heat dissipating member, and the heater connectors, such that electromagnetic waves of the electric heat generator are blocked.


 
6. The heater according to claim 5, wherein the upper heat dissipating member comprises:

an upper heat dissipating member body covering the top portion of the electric heat generator; and

a plurality of upper heat dissipating fins extending upward from the body of the upper heat dissipating member to predetermined lengths,

wherein each of the upper heat dissipating fins has an upper bent protrusion provided on an outer end portion thereof, the upper bent protrusion being bent with respect to the length of the upper heat dissipating fin to a predetermined angle, and being in contact with a portion of an adjacent upper heat dissipating fin, such that the upper bent protrusions maintain distances between the adjacent upper heat dissipating fins and increase the strength of the upper heat dissipating fins, thereby preventing vibration of the upper heat dissipating fins, and

the lower heat dissipating member comprises:

a lower heat dissipating member body covering the bottom of the electric heat generator; and

a plurality of lower heat dissipating fins extending downward from the lower heat dissipating member body to predetermined lengths,

wherein each of the lower heat dissipating fins has a lower bent protrusion provided on an outer end portion thereof, the lower bent protrusion being bent with respect to a length of the lower heat dissipating fin to a predetermined angle, and being in contact with a portion of an adjacent lower heat dissipating fin, such that the lower bent protrusions maintain distances between the adjacent lower heat dissipating fins and increase the strength of the lower heat dissipating fins, thereby preventing the vibration of the lower heat dissipating fins.


 
7. A hair dryer comprising:

a housing comprising an inlet provided on an open top portion thereof, such that ambient air is drawn therethrough, an outlet through which wind created by accelerating the air drawn through the inlet is discharged;

an air blower located below the inlet to draw the ambient air into the housing through the inlet;

a wind guide allowing the air drawn by the air blower to flow within the housing so as to accelerate the air, so that the wind is created, and discharging the wind toward the outlet;

a rotor unit connected to the air blower to rotate the air blower;

a heater disposed on a path along which the wind blows, and is able to increase the temperature of the wind as required;

a temperature sensor disposed adjacent to the outlet to detect the temperature of the wind discharged through the outlet;

a function selector comprising a wind strength adjusting and selecting means for selecting an adjustment of the strength of the wind discharged through the outlet, a temperature adjusting and selecting means for selecting an adjustment of the temperature of the wind discharged through the outlet, and a time setting and selecting means for selecting a time adjustment such that an operation is performed for a predetermined time; and

a controller controlling the air blower and the heater according to a value previously selected by the function selector,

wherein the wind guide comprises:

an intake top portion provided in a bottom surface to be more adjacent to the air blower than remaining portions of a bottom surface of the wind guide;

a discharge bottom portion connected to the intake top portion, with a height thereof being gradually lowered, the discharge bottom portion being gradually spaced away from the air blower; and

a curved guide shaped as a curved surface connecting circumferential portions of the intake top portion and discharge bottom portion, so as to concentrate the wind created from the drawn air that is accelerated while being guided from the intake top portion to the discharge bottom portion,

wherein the rotor unit comprises:

a rotor rotating the air blower; and

a rotor housing accommodating and protecting the rotor,

the controller comprises:

a control configuration; and

a controller housing having a hollow space defined therein to accommodate and protect the control configuration therein,

wherein at least one of the rotor housing and the controller housing is made of a Permalloy to block electromagnetic waves.


 
8. The hair dryer according to claim 7, wherein at least one of the rotor housing and the controller housing comprises a noise reducing member therein to prevent noise produced by the rotor housing or the controller housing from spreading outwards.
 
9. The hair dryer according to claim 2, wherein the hair dryer comprises a protrusion hood,
wherein the protrusion hood comprises:

a protrusion hood body mounted on one end portion of the outlet, and having a hollow portion extending through an interior thereof to communicate with an inside of the housing member;

a protrusion hood cover covering a front surface of the protrusion hood body, and comprising a plurality of wind holes spaced apart from each other;

first hair pins protruding perpendicularly from the front surface of the protrusion hood cover by a predetermined length;

second hair pins protruding perpendicularly from the front surface of the protrusion hood cover by a predetermined length, the second hair pins being shorter than the first hair pins,

wherein the first hair pins are in contact with a portion of the human body for which the hair dryer is used, such that a predetermined distance between the portion of the human body and the protrusion hood cover is maintained, and the hair on the portion of the human body is combed by the second hair pins.


 
10. The hair dryer according to claim 2, comprising a hook hood, wherein the hook hood comprises:

a hook hood body mounted on an end portion of the outlet, and having a hollow portion extending through an interior thereof to communicate with an inside of the housing member;

upper bars protruding from the front surface of the hook hood body by a predetermined length, at angles inclined in predetermined directions;

upper hooks bent from distal ends of the upper bars in predetermined directions, so as to be inclined at greater angles than the upper bars;

lower bars protruding from the front surface of the hook hood body by a predetermined length, in particular, from portions of the front surface spaced apart from the upper bars, at angles inclined in predetermined directions; and

lower hooks bent from distal ends of the lower bars to be inclined in the same direction as the upper hooks,

wherein hair, located on the portion of the human body for which the hair dryer is used, is to be combed by the upper bars and the lower bars, and a portion of the hair is lifted up to a predetermined height, caught by the upper hooks and the lower books, so that the hair is to be combed without being tangled while the hair, as well as at least one of the portion of the human body and the portion on which the hair is located, is being dried.


 
11. The hair dryer according to claim 4, wherein the wind guide comprises an annular first mount provided in a bottom portion thereof,
the rotor unit comprises an annular second mount provided on a circumferential portion to correspond to the first mount, and
an elastic member is located between the first mount and the second mount, such that the elastic member is repeatedly compressed or restored, in response to an operation of the rotor,
wherein vibration and noise produced by the operation of the rotor is removed by elastic force of the elastic member, so that the vibration and noise produced by the rotor is prevented from being transferred to the wind guide.
 




Drawing





































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Cited references

REFERENCES CITED IN THE DESCRIPTION



This list of references cited by the applicant is for the reader's convenience only. It does not form part of the European patent document. Even though great care has been taken in compiling the references, errors or omissions cannot be excluded and the EPO disclaims all liability in this regard.

Patent documents cited in the description