Technical Field
[0001] The present invention relates in general to a cooking apparatus, more specifically,
to a cooking apparatus provided with a middle plate for blocking heat transfer from
a cooking cavity to the outside of a door or to a handle.
Background Art
[0002] Korean Patent Application Laid-Open No.
2005-0083504 discloses a typical example of a cooking apparatus that has major components inclusive
of a magnetron, a high voltage transformer, a high voltage capacitor, and a cooling
fan provided at one side of a cooking cavity. Korean Patent Application Laid-Open
No.
2006-0037003 discloses a cooking apparatus that has major components inclusive of a magnetron,
a high voltage transformer, and a high voltage capacitor installed at the upper side
of a cooking cavity and accommodates a convection heater assembly at the rear wall
of the cooking cavity. Korean Utility Model Application Laid-Open No.
1999-0010444 discloses a cooking apparatus that has major components inclusive of a magnetron,
a high voltage transformer, and a cooling fan and an operating panel provided at the
lower side of a cooking cavity.
[0003] In addition, Korean Utility Model Application Laid-Open No.
1998-0016489 discloses a cooking apparatus, which has major components inclusive of a magnetron,
a high voltage transformer and a cooling fan installed at a side wall of a cooking
cavity and which is provided with a cooling flow path starting from the upper wall
of the cooking cavity to a lateral side thereof.
[0004] Korean Patent Application Laid-Open No.
1998-0053939 discloses a door of a microwave oven used as a typical example of cooking apparatuses,
in which the door is provided with a door frame for blocking microwaves and a choke
cover surrounding the door frame.
[0005] Korean Patent Application Laid-Open No.
1995-0003729 discloses a cooking apparatus that has a cooking flow path starting from a lateral
side of a cooking cavity, going via the bottom side of the cooking cavity, to the
door.
[0006] Korean Patent Application Laid-Open No.
2004-0108050 discloses an example of an operating panel for use in a cooking apparatus, in which
the operating panel is provided with a glass-touch keyboard using static electricity.
[0007] KR 2005 0035776 relates to a door cooling apparatus of an electric oven for accelerating an air flow
between the door and a control panel of the electric oven and preventing the backflow
of the door inwards to the electric oven and exhausting the door internal air and
cooling the door.
[0008] EP 1 217 875 A2 relates to a microwave oven, providing a system in a front surface thereof for air
communication between the inside and outside of the microwave oven, thereby minimizing
the number of components for the front surface. That is, vent grill parts are formed
as one unit with a door and a control panel of the microwave oven for covering vent
holes in the front surface of a main frame from external view. Top ends of the vent
grill parts are opened for permitting the inside and the outside of the microwave
oven to be in communication through the vent holes. There may be a louver in the vent
grill parts in correspondence to the vent holes.
[0009] US 3,783,219 relates to an air cooled microwave cooking oven and door. In a microwave cooking
apparatus, more particularly in an apparatus having a radiant heating means for surface
browning of the foodstuff and the like, the interior of the door and the handle are
heated at a relatively high temperature. A blower means for providing an air stream
is so installed as to cool the interior of the door whereby prevents the temperature
rise of the door and the handle due to the heat from the browning means and so forth.
Disclosure of Invention
Technical Problem
[0010] It is an object of the present invention to provide a cooking apparatus capable of
preventing heat generated from a cooking cavity from being transferred to the outside
of a door or to a handle.
[0011] Another object of the present invention is to provide a cooking apparatus capable
of cooling the inside of a door using air flow and a stagnant air layer.
[0012] Still another object of the present invention is to provide a cooking apparatus capable
of cooling the inside of a door using air flow generated from the rear space of the
cooking apparatus.
[0013] Still another object of the present invention is to provide a cooking apparatus provided
with a door that is built for enabling a user to see the inside of a cooking cavity,
and capable of blocking heat transfer to the outside of the door or to the handle.
[0014] Still another object of the present invention is to provide a cooking apparatus capable
of preventing heat generated from a cooking cavity from being transferred to a control
panel provided to a door.
[0015] Yet another object of the present invention is to provide a cooking apparatus, which
forms a cooling flow path from a cooking cavity towards a door and which is capable
of preventing foreign substances from getting inside the door through the cooling
flow path.
Technical Solution
[0016] The objects are solved by the features of the independent claim. According to one
example, a cooking apparatus, comprising: a cooking cavity; and, a door opening and
closing the cooking cavity and including a front plate, a door frame located at the
rear of the front plate to block microwaves and a middle plate located between the
front plate and the door frame to block heat transferred from the cooking cavity to
the front plate.
[0017] In another aspect, the cooking apparatus comprises a flow path formed to pass by
at least one of the outer surfaces of the cooking cavity, and the door is provided
with an opening for communication with the flow path.
[0018] In another aspect, the flow path is extended from the rear of the cooking cavity
to the upper portion of the cooking cavity, and the opening is formed at the upper
portion of the door to communicate with the flow path.
[0019] In another aspect, the door is provided with a door flow path formed in a way that
a flow coming out of the opening passes by at least one of the lateral surfaces of
the middle plate.
[0020] In another aspect, the door flow path is formed in a way that the flow coming out
of the opening passes between the front plate and the middle plate.
[0021] In another aspect, the door is provided with a bracket for guiding the flow coming
out of the opening towards the at least one of the lateral surfaces of the middle
plate.
[0022] In another aspect, the bracket is located over the middle plate.
[0023] In another aspect, the opening is provided with means for preventing foreign substances
from getting inside the door.
[0024] In another aspect, there is provided a cooking apparatus, comprising: a cooking cavity;
and, a door opening and closing the cooking cavity and including a door panel provided
with an opening for enabling a user to see the inside of the cooking cavity; and a
middle plate located on the opening of the door panel to block heat generated from
the cooking cavity.
[0025] In another aspect, the middle plate is made of a material that enables a user to
see the inside of the cooking cavity.
[0026] In another aspect, the door is provided with a front plate mounted on the door panel
to cover at least the opening and made of a material for a user to be able to see
the inside of the cooking cavity through the opening of the door panel, and a door
frame mounted on the door panel to block microwaves from the cooking cavity and having
a part made of a material for a user to be able to see the inside of the cooking cavity
through the opening of the door panel.
[0027] In another aspect, the door includes a choke cover located at the rear of the door
frame and provided with a first opening for passing a flow into the door, and a second
opening formed to allow a user to see the inside of the cooking cavity.
[0028] In another aspect, the door is provided with a door flow path formed to pass by at
least one of the lateral surfaces of the middle plate.
[0029] In another aspect, the door is provided with a front plate mounted on the door panel
to cover at least the opening; and a door flow path formed to pass between the front
plate and the middle plate.
[0030] In another aspect, the door is provided with a control panel located at the upper
portion of the opening of the door panel.
[0031] In another aspect, there is provided a cooking apparatus comprising: a cooking cavity
carrying out a cooking process using microwaves; a door opening and closing the cooking
cavity and provided with a door frame blocking the microwaves; a flow path extended
from the cooking cavity side to the door side for a flow to pass thereon; and a choke
cover formed at the door and provided with a first opening communicating with the
flow path of the cooking cavity side and preventing foreign substances from getting
into the door, and a second opening formed to expose the door frame.
[0032] In another aspect, the cooking apparatus further comprises a door panel mounting
the door frame and provided with an opening formed for the flow to pass therethrough.
[0033] In another aspect, the cooking apparatus further comprises a middle plate located
on the opening and blocking heat generated from the cooking cavity.
[0034] In another aspect, the choke cover is formed in a way that the choke cover of the
first opening side and the choke cover of the second opening side are separately made.
[0035] In another aspect, there is provided with a cooking apparatus, comprising: a cooking
cavity carrying out a cooking process using microwaves; a door opening and closing
the cooking cavity and provided with a door frame to block the microwaves; a flow
path extended from the cooking cavity side to the door side for a flow to pass thereon;
a door panel mounting the door frame and provided with an opening formed for the flow
to pass therethrough; a middle plate located on the opening and blocking heat generated
from the cooking cavity; and, a choke cover formed at the door and provided with a
first opening communicating with the flow path of the cooking cavity side, and a second
opening formed to expose the door frame; wherein the middle plate, the door frame,
and the choke cover are mounted on the door panel for the flow to form a flow path
of the door side passing from the first opening of the choke cover, via the upper
portion of the door frame, through at least one of the lateral surfaces of the middle
plate.
[0036] Additional and/or other aspects and advantages of the present invention will be set
forth in part in the description which follows and, in part, will be obvious from
the description, or may be learned by practice of the invention.
Brief Description of the Drawings
[0037] The above aspects and features of the present invention will be more apparent by
describing certain embodiments of the present invention with reference to the accompanying
drawings, in which:
FIG. 1 is an exploded schematic view of the main structure of a cooking apparatus
according to the present invention;
FIG. 2 schematically shows an example of the rear space of a cooking apparatus according
to the present invention;
FIGS. 3 and 4 schematically show other examples of the rear space of a cooking apparatus
according to the present invention;
FIGS. 5 and 6 schematically show a cooling flow path according to the present invention;
and
FIGS. 7 through 9 schematically show an example of a door according to the present
invention.
Mode for the Invention
[0038] The present invention will be described in detail herein below with reference to
the accompanying drawings.
[0039] FIG. 1 is an exploded schematic view of the main structure of a cooking apparatus
in accordance with the present invention, showing a cooking cavity 100, a door 200,
an upper space 300 located over the cooking cavity 100, a rear space 400 located at
the rear of the cooking cavity 100, lateral spaces 500 located on both sides of the
cooking cavity 100, and a lower space 600 located under the cooking cavity 100.
[0040] The cooking cavity 100 is a space for cooking food, and is defined by an inner case
110. A heater 120 is provided at the upper portion of the inside of the cooking cavity
100, and a plate or a rack 130 is placed inside the cooking cavity 100. The inner
case 110 includes an inlet (not shown) and an outlet 111 formed on the sides for forming
an air flow path to remove heat and smell inside the cooking cavity 100. An example
of the heater 120 is a sheath heater. The use of the plate 130 in replacement of a
circular turn table brings change to width and length (depth) of the cooking cavity
100, the modification of which is restricted by the turn table. At one side of the
cooking cavity 100 is provided a guide 140 for guiding the plate 130. In addition,
at the front and rear sides of the cooking cavity 100 are provided a front frame 150
and a rear frame 160, respectively, and the front frame 150 has an opening 151 for
forming a flow path between the upper space 300 and the door 200. The rear frame 160
also has an opening 161 formed at the upper side for communication with the rear space
400.
[0041] The lower portion of the door 200 is hinged to the cooking cavity 100 so that the
door 200 can open and close the cooking cavity 100. The door 200 is formed to cover
the cooking cavity 100 and the upper space 200. The door 200 is composed of a handle
210, a front plate 220, an input sensing unit 230, a door panel 240, a control panel
250, a middle plate 260, a bracket 270, a door frame 280, and a choke cover 290.
[0042] The handle 210 is a part that a user uses to open or close the door 200, and can
be fixed to the front plate 220 by bolts (not shown). Desirably, the handle 210 has
at least one channel (not shown) formed inside along its longitudinal direction in
a manner that the channel is communicated with outside, so that the total weight can
be reduced and the amount of heat transferred to the user from the cooking cavity
100 during cooking can be minimized.
[0043] The front plate 220 is desirably made of a transparent glass for the user to be able
to see the inside of the cooking cavity 100, and a display unit (not shown) including
buttons may be attached or coated thereto, the buttons being used for the user to
select a cooking course or for the indication of an operating status of the cooking
apparatus.
[0044] The input sensing unit 230 is a part that recognizes which button is selected by
the user. In the case that the input sensing unit 230 is located at the rear of the
front plate 220 made of glass, it can be composed of a glass touch unit and serve
as an electrostatic sensor. The glass touch unit can be attached to the front plate
220 using a tape. The input sensing unit 230 is located at the upper region of the
door 200 facing the upper space 300 of the cooking cavity 100, and this structure
ensures a broader cooking cavity and helps the user easily see the inside of the cooking
cavity 100 without hindrance.
[0045] The door panel 240 is a part that fixes other components 220, 250 and the like of
the door 200, and has an opening 241 for the user to see the inside of the cooking
cavity 100. Moreover, the door panel 240 has in its lower side an outlet (not shown)
through which the flow traveling along a cooling flow path extended from a cooling
fan 420 (to be described) to the door 200 via the upper space 300 is discharged.
[0046] The control panel 250 is a part for controlling the overall operation of the cooking
apparatus according to a user input. To this end, it cooperates with the input sensing
unit 230 and a relay substrate 350 (to be described), and is fixed to the door panel
240 from the rear side of the input sensing unit 230. Desirably, the control panel
250 is provided with a light-emitting source such as an LED (light emitting diode),
and irradiates the light emitted from the light-emitting source to the display unit
(not shown).
[0047] The middle plate 260 is a part fixed to the door panel 240, while being spaced out
from the front plate 220 and the door frame 280, respectively. Its primary function
is to block heat transfer from the cooking cavity 100 to the front frame 220 and the
handle 210. Desirably, the middle plate 260 is installed at the door panel 240 so
that a flow generated from the cooling fan 420 (to be described) enters the door 200
via the rear space 400 and the upper space 300 and then travels between the middle
plate 260 and the front plate 220 under the guidance of a bracket 270 (to be described).
Such a flow vents through the outlet (not shown) of the door panel 240.
[0048] The bracket 270 is fixed to the door panel 240 from the rear side of the control
panel 250. It serves to protect the input sensing unit 230 and the control panel 250,
each including electronic components, against heat and microwaves from the cooking
cavity 100 and against the flow by the cooling fan 420, and guides the flow to travel
between the door panel 240 and the front plate 220.
[0049] The door frame 280 is accommodated in the door panel 240, and serves to block leakage
of microwaves to the outside of the cooking apparatus.
[0050] The choke cover 290 is a cover for the door 200 located towards the cooking cavity
100, and has an opening 291 formed on its upper side in correspondence to the opening
151 of the front frame 150. The opening 291 is preferably composed of tiny holes in
order to prevent food or foreign substances from getting into the door 200 while the
door 200 is being open.
[0051] The upper space 300 is a space over the cooking cavity 100 defined by an external
case 310, and includes a heater 320, a waveguide 330, an insulating upper plate 340,
and a relay substrate 350. Optionally, a lamp (not shown) for lightening the cooking
cavity 100 may be provided as well.
[0052] The external case 310 has a shape that encompasses the top and both sides of the
cooking cavity 100 at a distance away, and is connected to the front frame 150 and
the rear frame 160. If necessary, it may have an outlet 311 so that a flow having
traveled around the cooking cavity 100 and the heating elements installed in the cooking
apparatus can be vented to the outside.
[0053] An example of the heater 320 is a halogen heater. Since such a heater 320 is influenced
by microwaves, unlike the heater 120 formed of a sheath heater, the heater 320 is
installed at the upper side of the inner case 110 so as to provide heat downwardly
into the cooking cavity 100 from above.
[0054] The waveguide 330 is extended from the rear space 400 to the upper space 300, and
serves to provide microwaves generated from a magnetron (not shown) to the cooking
cavity 100. To do this, at the upper surface of the cooking cavity 100 is provided
a port 331 (see FIG. 2).
[0055] The insulating upper plate 340 prevents heat generated by the heater 120 housed in
the inner case 110 from transferring to the upper space 300, and has a shape that
covers the upper portion of the cooking cavity 100 except for the heater 320 and the
waveguide 330.
[0056] The relay substrate 350 is mounted on the insulating upper plate 340 from one side
of the upper space 300, and interworks with the control panel 250 to operate components
inclusive of the magnetron (to be described) placed at the rear space 400.
[0057] FIG. 2 schematically shows an example of the rear space of a cooking apparatus according
to the present invention. Referring to FIGS. 1 and 2, the rear space 400 is a space
behind the cooking cavity 100 defined by the cover 410, and includes a cooling fan
420, a convection heater assembly 430, and heating elements such as a magnetron 440,
a high voltage transformer 450, and a high voltage capacitor 460, together building
a component room of the cooking apparatus.
[0058] The cover 410 is connected to the rear frame 160 or the outer case 310 so as to cover
the upper space 300 and the rear space 400, and its lower portion is connected to
a base 610. At the lower portion of the cover 410 or the base 610 is provided an inlet
411 for air inflow to the cooling fan 420.
[0059] The cooling fan 420 is located at the lower portion of the rear space 400 along the
width direction thereof, and includes flow-generating units 421 and 422 on both sides
to cool the components installed at the upper side. As the rear space 400, the upper
space 300 and the door 200 are built in a way to be communicated, the entire area
of the cooking apparatus can be cooled by means of the cooling fan 420. In addition,
the cooling fan 420 is provided with a partition wall 423 for preventing the flow
generated by the cooling fan 420 from flowing back to the cooling fan 420. The partition
wall 423 has openings 424 and 425 formed on both sides in a manner to make the flow
go up to the upper portion of the rear space 400. At the space 426 between the flow-generating
units 421 and 422 is provided a motor (not shown) for driving the flow-generating
units 421 and 422.
[0060] FIGS. 3 and 4 schematically show other application examples of the rear space of
a cooking apparatus according to the present invention. Referring to FIGS. 1-4, the
rear space is provided, in addition to the structure shown in FIG. 2, with a flow
guide 441 for guiding air flow to the magnetron 440, and a flow guide 442 for guiding
the air flow coming out of the magnetron 440 to the inlet 112 that is formed on the
lateral face of the cooking cavity 100. This structure, especially the flow guide
442, makes it possible to guide the air flow generated from the cooling fan 420 into
the cooking cavity 100 stably and efficiently, and to effectively cool the magnetron,
one of core components.
[0061] The convection heater assembly 430 includes a fan 431, a heater 432, an inner heater
cover 433, an outer heater cover 434, and a motor 435. Desirably, a heat insulating
material (not shown) is placed between the inner heater cover 433 and the outer heater
cover 434. Such a convection heater assembly 430 must have the motor 435. Since the
motor 435 is installed being protruded backwardly from the rear space 400, the rear
space 400 must have a room that is deep enough at least to accommodate the motor 435.
Based on the attention to this space, such a large volume component 440, 450, and/or
460 among the major components used in the operation of the cooking apparatus can
be placed in the rear space 400. In this way, even though part of the cooking cavity
100 in the longitudinal direction is sacrificed, the cooking cavity 100 is expanded
in the lateral and vertical directions. Also, by using a plate instead of a turntable,
a cooking apparatus according to the present invention can change the height, width
and depth of the cooking cavity 100. Also, by placing the cooling fan 420 at the lower
portion of the rear space 400, a cooking apparatus according to the present invention
can utilize the rear space 400 and can cool the heating elements 440, 450, and/or
460 as well. Also, by providing the cooling fan 420 at the lower portion of the rear
space 400 and building the rear space 400, the upper space 300, the door 200, the
cooking cavity 100, and the lateral spaces 500 to be communicated with one another,
the whole part of a cooking apparatus according to the present invention can be effectively
cooled by the cooling fan 420. Also, as the cooling fan 420 is installed along the
width direction of the rear space 400, the heating elements such as the convection
heater assembly 430, the magnetron 440, the high voltage transformer 450, and the
high voltage capacitor 460, which are provided in the rear space 400, can be cooled
effectively, the flow can be traveled to the upper space 300, the lateral spaces 500
and the cooking cavity 100 and be vented through an outlet 611 formed on the base
at the lower portion of the cooking cavity 100. Also, by providing the partition wall
423 and the openings 424 and 425, a cooking apparatus according to the present invention
can form the flow path and flow and cool the heating elements, effectively and selectively.
Also, the rear frame 160 may further comprise an opening 162 for communicating the
lateral space 500. The opening 162 enables a direct air flow from the rear space 400
to the lateral space 500 and creates air flow to both sides of the rear space 400,
thereby promoting the cooling process and the air flow onto both sides of the rear
space 400.
[0062] The magnetron 440, the high voltage transformer 450, and the high voltage capacitor
460 are major components used in the operation of the cooking apparatus, each generating
a lot of heat. The magnetron 440 is placed above the opening 424, while the high voltage
transformer 450 and the high voltage capacitor 460 are placed above the opening 425.
The arrangement of these heating elements can be changed.
[0063] The lateral spaces 500 are spaces on both sides of the cooking cavity 100 defined
by the outer case 100, and they desirably communicate with the upper space 300, the
rear space 400, and the lower space 600, and also with the cooking cavity 100 through
the inlet 112 and the outlet 111. The flow generated from the cooling fan 420 travels
from the rear space 400, the upper space 300, the cooking cavity 100, the lateral
spaces 500, and eventually to the lower space 600. At this time, the flow traveling
the upper space 300 and heading to the lateral space 500 can guide the flow that came
out of the cooking cavity 100 through the outlet 111 to the lower space 600.
[0064] The lower space 600 is a space below the cooking cavity 100 defined by the base 610.
The base 610 is connected to the front frame 150 and the rear frame 160 to support
the cooking apparatus, and includes the outlet 611 so as to exhaust the flow originated
from the cooling fan 420 and the smell and heat generated in the cooking cavity 100.
Even though the lower space 600 is defined by the rear frame 160 from the rear side,
the base 610 is connected to the cover 410 over the rear frame 160. Therefore, the
base 610 also functions as a member for limiting the lower portion of the rear space
400. The location of the outlet 611 is not particularly limited, so it can be on the
side of the outlet 111, or preferably at the center of the base 610 to give a sufficiently
long flow path. Since hot air flow is vented through the outlet 611, the cooking apparatus
should not be placed on a kitchen appliance that is sensitive to heat. To protect
such a kitchen appliance from any damages due to overheated air, a plate (not shown)
may be connected to the base 610 at a distance so that heat may be exhausted in the
lateral directions.
[0065] FIGS. 5 and 6 schematically show a cooling flow path according to the present invention.
As shown in the drawings, flow generated from the rear space 400 travels to the lateral
spaces 500 formed on both sides of the cooking cavity 100 via the upper space 300,
while part of the flow comes out of the opening 151 and turns towards the door 200.
Also, another part of the flow may turn towards the lateral spaces through the opening
162 formed in the rear frame 160. The flow coming to the upper space 400 cools the
heater 320 and the relay substrate 350. Desirably, the relay substrate 350 is provided
to the insulating upper plate 340 along the direction of the flow, so as to minimize
the hindrance to the flow. The flow passing through the lateral spaces 500 turns towards
the lower space 600, and is vented through the outlet 611 (refer to FIG. 1) formed
at the center of the base 610. Even though there is no particular restriction to the
location of the outlet 610, it is preferably located around the center of the base
610 because a sufficient amount of heat exchange is performed as the flow travels
or circulates inside the cooking apparatus as long as possible. At this time, to protect
a bottom surface where the cooking apparatus is placed, a protective plate 612 may
be connected to the base 610 at a distance so that the flow may be exhausted in the
lateral directions. In addition, the flow passing by the lateral spaces 500 guides
the flow vented through the outlet 111 of the cooking cavity 100 to the lower space
600. Meanwhile, the air flow that comes through the opening 291 of the choke cover
290 travels between the front plate 220 and the middle plate 260 being guided by the
bracket 270, and is vented through the outlet 242 formed in the bottom surface of
the door panel 240. As such, the input sensing unit 230 (see FIG. 1) and the control
panel 250 (see FIG. 1) covered by the bracket 270 can be protected from heat and air
flow, one side of the middle plate 260 blocks heat through the air flow (Although
the air flow is blocked by the bracket 270, the air flow serves to block heat transfer
to the input sensing unit 230 and the control panel 240.), and the other side of the
middle plate 260 blocks heat through a stagnant air layer. In result, heat generated
from the cooking cavity 100 is blocked and not transferred to the outside of the door
200 or the handle 210 (see FIG. 1).
[0066] FIGS. 7 through 9 schematically show an example of a door according to the present
invention, in which the door includes a front plate 220, an input sensing unit 230,
a door panel 240, a control panel 250, a middle plate 260, a bracket 270, a door frame
280, and a choke cover 290. The front plate 220 has a button type display unit 221,
and the display unit 221 and the input sensing unit 230 constitute an operating panel.
The door frame 280 includes a door screen 281 and a choke unit 282 to block microwaves,
and hinged to the cooking cavity side through a hinge H under the door screen 281.
In addition, the front plate 220, the middle plate 260, and the door screen 281 are
made of transparent materials such as glass or plastic, and the door panel 240 and
the choke cover 290 have openings 241 and 292, so that a user may be able to see the
inside of the cooking cavity. Moreover, light-emitting sources 251 and 252 such as
LEDs are provided to the front side of the control panel 250 to illuminate the display
unit 221. To this end, openings 231, 232 and 242 through which light beams can pass
are formed at corresponding portions in the input sensing unit 230 and the door panel
240, respectively. The choke cover 290 also has an opening 291 through which air flow
for cooling the door can travel. By separately forming the choke cover 290 on the
side of the opening 291 from the choke cover 290 on the side of the opening 292, assembly
efficiency of the door can be improved.
[0067] The middle plate 260 is mounted on the opening 241 of the door panel 240 at the opposite
side of the front plate 220. The door frame 280 is mounted on the door panel 240 at
a predetermined distance away from the middle plate 260 at the opposite side of the
front plate 220. The choke cover 290 is mounted on the door frame 240 to cover the
choke unit 282 of the door frame 280, while the door screen 281 of the door frame
280 being exposed to the opening 292 of the choke cover 290. The door panel 240 is
provided with fixing projections 243 for use in fixing the control panel 250 to the
rear portions on both sides thereof and a fixing projection (not shown) for use in
fixing the bracket 270 to encompass the rear portion and lower side of the control
panel 250, and has the middle plate 260 installed at its lower opening 241, leaving
a predetermined space. The opening 241 formed in the door panel 240 is provided with
a plurality of assembly hooks 244a and 245a and support units 244b and 245b that are
protruded backwardly, respectively. On the upper and lower sides of the opening 241
of the door panel 240, the support unit 244b is formed between a pair of assembly
hooks 244a, Meanwhile, on the both sides of the opening 241 of the door panel 240,
one assembly hook 245a is provided at the upper portion and one support unit 245b
is provided along the side toward the lower corner of the side. In order for the assembly
hooks 244a and 245a and the support units 244b and 245b to support the front and rear
surfaces of the middle plate 260, the space between the assembly hooks 244a and 245a
and the support units 244b and 245b is preferred to be equal to a thickness of the
middle plate 260. Moreover, the assembly hooks 244a and 245a and the support units
244a and 245b are preferred to be partially formed on the circumference of the opening
241 of the door panel 240 to minimize a flow resistance when air flow come in and
out the opening 241. Furthermore, at one side (or both sides) of the rear portion
of the door panel 240 is provided a wire guide unit 246 for guiding a wire connected
to the control panel 250. Also, at the lower side of the door panel 240 is provided
an opening 247 used for wire-connecting to the cooking cavity side, an opening 248
used for inserting/ releasing a hinge H depending on the opening/closing of the door
200 and an outlet 242 through which air having passed through the door 200 is vented.
[0068] As explained so far, a cooking apparatus of the present invention is capable of preventing
heat generated from a cooking cavity from being transferred to the outside of a door
or to a handle.
[0069] Also, a cooking apparatus of the present invention is capable of cooling the inside
of a door using air flow and a stagnant air layer.
[0070] Also, a cooking apparatus of the present invention is capable of cooling the inside
of a door using air flow generated from the rear space of the cooking apparatus.
[0071] Also, a cooking apparatus of the present invention is provided with a door that is
built for enabling a user to see the inside of a cooking cavity, and is capable of
blocking heat transfer to the outside of the door or to the handle.
[0072] Also, a cooking apparatus of the present invention is capable of preventing the heat
generated from a cooking cavity from being transferred to a control panel located
at a door.
[0073] Also, a cooking apparatus of the present invention forms a cooling flow path from
a cooking cavity towards a door and is capable of preventing foreign substances from
getting inside the door through the cooling air flow path.
1. Garvorrichtung, die Folgendes umfasst:
einen Garraum (100); und
eine Tür (200), die den Garraum (100) öffnet und schließt und die eine vordere Platte
(220), einen Türrahmen (280), der sich auf der Rückseite der vorderen Platte (220)
befindet, um Mikrowellen zu blockieren, und eine mittlere Platte (260), die sich zwischen
der vorderen Platte (220) und dem Türrahmen (280) befindet, um Wärme, die von dem
Garraum (100) an die vordere Platte (220) übertragen wird, zu blockieren, enthält;
dadurch gekennzeichnet, dass
ein Strömungsweg so gebildet ist, dass er an mindestens einer äußeren Oberfläche des
Garraums (100) verläuft, wobei die Tür (200) mit einer Öffnung (291), die mit dem
Strömungsweg kommuniziert, versehen ist; und
die Tür (200) mit einem Tür-Strömungsweg versehen ist, der in einer Weise gebildet
ist, dass eine Strömung, die aus einer Öffnung (291) kommt, an mindestens einer seitlichen
Fläche der mittleren Platte (260) verläuft, und dass die Strömung, die aus der Öffnung
(291) kommt, zwischen der vorderen Platte (220) und der mittleren Platte (260) verläuft.
2. Garvorrichtung nach Anspruch 1, wobei sich der Strömungsweg von der Rückseite des
Garraums (100) bis zu dem oberen Abschnitt des Garraums (100) erstreckt und die Öffnung
(291) in dem oberen Abschnitt der Tür (200) gebildet ist, um mit dem Strömungsweg
zu kommunizieren.
3. Garvorrichtung nach einem der vorhergehenden Ansprüche, wobei die Tür (200) mit einer
Klammer (270) versehen ist, die sich über der mittleren Platte (260) befindet, um
die Strömung, die aus der Öffnung (291) kommt, entlang des Strömungsweges zwischen
der vorderen Platte (220) und der mittleren Platte (260) zu leiten.
4. Garvorrichtung nach einem der Ansprüche 2 bis 3, wobei die Öffnung (291) mit Mitteln
zum Verhindern, dass Fremdkörper in die Tür (200) gelangen, versehen ist.
5. Garvorrichtung nach einem der Ansprüche 1 bis 4, wobei die Tür (200) mit einer Steuertafel
(250) versehen ist, die sich in dem oberen Abschnitt der ersten Öffnung (241) des
Türblatts (240) befindet.
6. Garvorrichtung nach einem der Ansprüche 1 bis 5, die ferner Folgendes umfasst:
eine Drosselabdeckung (290), die in der Tür (200) gebildet ist und mit der Öffnung
(291) versehen ist, die mit dem Strömungsweg der Garraumseite kommuniziert und verhindert,
dass Fremdkörper in die Tür (200) gelangen, und mit einer weiteren Öffnung versehen
ist, die gebildet ist, um den Türrahmen (280) freizulegen.
7. Garvorrichtung nach Anspruch 6, wobei die Drosselabdeckung (290) in einer Weise gebildet
ist, dass die Drosselabdeckung (290) der Öffnungsseite und die Drosselabdeckung (290)
der weiteren Öffnungsseite separat gefertigt sind.
8. Garvorrichtung nach einem der vorhergehenden Ansprüche, wobei die Tür (200) ferner
Folgendes umfasst:
ein Türblatt (240), die mit einer Öffnung (241) versehen ist, die es dem Anwender
ermöglicht, das Innere des Garraums (100) zu sehen,
wobei die vordere Platte (220) an einer vorderen Seite des Türblatts (240) befestigt
ist, um mindestens die Öffnung (241) abzudecken, und aus einem Material gefertigt
ist, das einem Anwender ermöglicht, das Innere des Garraums (100) durch die Öffnung
(241) des Türblatts (240) zu sehen;
wobei sich die mittlere Platte (260) auf der Öffnung (241) des Türblatts (240) an
einer hinteren Seite davon befindet, um Wärme, die von dem Garraum (100) erzeugt wird,
zu blockieren; und
wobei der Türrahmen (280) an der hinteren Seite des Türblatts (240) befestigt ist,
um Mikrowellen von dem Garraum zu blockieren, und ein Teil besitzt, das aus einem
Material gefertigt ist, das einem Anwender ermöglicht, das Innere des Garraums durch
die Öffnung des Türblatts (240) zu sehen.
1. Appareil de cuisson, comprenant :
une cavité de cuisson (100) ; et
une porte (200) pour ouvrir et fermer la cavité de cuisson (100) et incluant une plaque
frontale (220), un cadre de porte (280) situé à l'arrière de la plaque frontale (220)
pour bloquer les micro-ondes, et une plaque médiane (260) située entre la plaque frontale
(220) et le cadre de porte (280) pour bloquer la chaleur transférée depuis la cavité
de cuisson (100) vers la plaque frontale (220) ;
caractérisé en ce que
un trajet d'écoulement est formé pour passer vers l'une au moins des surfaces extérieures
de la cavité de cuisson (100) et la porte (200) est pourvue d'une ouverture (291)
qui communique avec le trajet d'écoulement ; et
la porte (200) est pourvue d'un trajet d'écoulement de porte formé de telle manière
qu'un écoulement sortant de l'ouverture (291) passe vers l'une au moins des surfaces
latérales de la plaque médiane (260), et en ce que l'écoulement sortant de l'ouverture (291) passe entre la plaque frontale (220) et
la plaque médiane (260).
2. Appareil de cuisson selon la revendication 1, dans lequel le trajet d'écoulement s'étend
depuis l'arrière de la cavité de cuisson (100) vers la portion supérieure de la cavité
de cuisson (100), et l'ouverture (291) est formée à la portion supérieure de la porte
(200) pour communiquer avec le trajet d'écoulement.
3. Appareil de cuisson selon l'une quelconque des revendications précédentes,
dans lequel la porte (200) est pourvue d'une platine (270), qui est située au-dessus
de la plaque médiane (260), pour guider l'écoulement sortant de l'ouverture (291)
le long du trajet d'écoulement entre la plaque frontale (220) et la plaque médiane
(260).
4. Appareil de cuisson selon l'une quelconque des revendications 2 et 3, dans lequel
l'ouverture (291) est pourvue de moyens pour empêcher que des substances étrangères
entrent à l'intérieur de la porte (200).
5. Appareil de cuisson selon l'une quelconque des revendications 1 à 4, dans lequel la
porte (200) est pourvue d'un panneau de commande (250) situé à la portion supérieure
de la première ouverture (241) du panneau de porte (240).
6. Appareil de cuisson selon l'une quelconque des revendications 1 à 5, comprenant en
outre :
un couvercle de blocage (290) formé au niveau de la porte (200) et pourvu de l'ouverture
(291) qui communique avec le trajet d'écoulement du côté de la cavité de cuisson et
empêchant que des substances étrangères entrent dans la porte (200), et d'une autre
ouverture formée pour exposer le cadre de porte (280).
7. Appareil de cuisson selon la revendication 6, dans lequel le couvercle de blocage
(290) est formé d'une telle façon que le couvercle de blocage (290) du côté de l'ouverture
et le couvercle de blocage (290) du côté de l'autre ouverture sont réalisés séparément.
8. Appareil de cuisson selon l'une quelconque des revendications précédentes,
dans lequel la porte (200) inclut en outre :
un panneau de porte (240) pourvu d'une ouverture (241) pour permettre à un utilisateur
de voir l'intérieur de la cavité de cuisson (100),
dans lequel la plaque frontale (220) est montée sur un côté frontal du panneau de
porte (240) pour couvrir au moins l'ouverture (241) et réalisée en un matériau tel
qu'un utilisateur est capable de voir l'intérieur de la cavité de cuisson (100) à
travers l'ouverture (241) du panneau de porte (240) ;
dans lequel la plaque médiane (260) est située sur l'ouverture (241) du panneau de
porte (240), sur un côté arrière de celle-ci pour bloquer la chaleur générée depuis
la cavité de cuisson (100) ; et
dans lequel le cadre de porte (280) est monté sur le côté postérieur du panneau de
porte (240) pour bloquer les micro-ondes venant de la cavité de cuisson, et ayant
une partie réalisée en un matériau pour qu'un utilisateur soit capable de voir l'intérieur
de la cavité de cuisson à travers l'ouverture du panneau de porte (240).