CROSS-REFERENCE TO RELATED APPLICATION
BACKGROUND OF THE INVENTION
1. Field of the invention
[0002] The present invention relates to an outdoor unit of an air conditioner.
2. Description of the Related Art
[0003] FIG. 8 is a perspective view illustrating an outdoor unit of a general air conditioner.
FIG. 9 is a view illustrating inner elements of the outdoor unit of FIG. 8. FIG. 10
is a view illustrating a motor support structure in FIG. 8. With reference to FIGs.
8 to 10, an air conditioner is an apparatus which exchanges heat between a refrigerant
and surrounding air during a circulation process in which the refrigerant is compressed,
condensed, expanded, and evaporated, to condition indoor air. Such an air conditioner
may include an indoor unit installed indoors and conditioning indoor air through heat
exchange with the indoor air and an outdoor unit installed outdoors and exchanging
heat with outdoor air.
[0004] The outdoor unit may include a casing 2, a heat exchanger 20 performing heat exchange
between a refrigerant and outdoor air, an axial fan 10 forcibly blowing the outdoor
lair to perform effective contact between the outdoor air and the heat exchanger 20,
and a motor 30 rotating the axial fan 10. In case of an air conditioner used for both
cooling and heating, a heat exchanger provided in an outdoor unit acts as a condenser
during cooling and acts as an evaporator during heating. Suction holes 3 through which
outdoor air is sucked into the outdoor unit and a discharge hole 4 through which air
blown by the axial fan 10 is discharged to the outside may be formed on the casing
2.
[0005] The motor 30 is supported at the inside of the casing 2 by a motor supporter 40.
Flow resistance caused by interference between an air current sucked into the axial
fan 10 and the motor supporter 40 lowers performance of the axial fan 10 and particularly,
increases noise.
[0006] EP 2 206 976 A2 relates to an outdoor unit of an air condition including an outdoor heat exchanger,
a blow fan, a fan motor, a motor mount and a guide part.
[0007] EP 1 953 465 A1 relates to an outdoor unit including an outdoor heat exchanger, a fan, a motor for
driving the fan and a motor support table for supporting the motor.
JP H11 23009 A relates to an air conditioner being provided with a supporting frame for mounting
a fan and supporting what is arranged across the air passage of a heat exchanging
member.
SUMMARY OF THE INVENTION
[0008] An object of the present invention is to provide an air conditioner which may improve
performance of a fan and reduce generation of noise.
[0009] The objects of the present invention are not limited to the above-mentioned objects
and other objects that have not been mentioned above will become evident to those
skilled in the art from the following description.
[0010] To achieve the above objects, there is provided an outdoor unit of an air conditioner
according to an exemplary embodiment of the present invention including an axial fan,
a motor rotating the axial fan, and a motor supporter supporting the motor, wherein
the motor supporter includes deflection parts deflecting an air current sucked into
the axial fan so as to have a rotating direction component of the axial fan.
[0011] The deflection part may include a deflection surface having a designated angle from
the axial direction of the axial fan to guide the sucked air current. The angle may
be an acute angle.
[0012] An air current contact surface of the deflection part contacting the sucked air current
may be convex toward the upstream side of the sucked air current, the air current
contact surface may include a forward facing surface facing the rotating direction
of the axial fan and a backward facing surface facing the opposite direction to the
rotating direction of the axial fan, and the deflection surface may be formed on the
forward facing surface.
[0013] The deflection surface may extend so as to be gradually closer to the rotating axis
of the axial fan in the direction of the rotating axis.
[0014] The deflection parts may include at least one deflection part provided above the
rotating axis of the motor and at least one deflection part provided below the rotating
axis of the motor, and the at least one deflection part provided above the rotating
axis of the motor and the at least one deflection part provided below the rotating
axis of the motor may deflect the sucked air current in opposite directions.
[0015] A vector proceeding from a leading edge of the deflection part, which the sucked
air current starts to contact, to a trailing edge of the deflection part, from which
the air current is separated, may have the rotating direction component of the axial
fan. The leading edge and the trailing edge may be located on a streamlined closed
path. Among a suction surface and a pressure surface of the deflection part interconnecting
the leading edge and the trailing edge, the pressure surface may face the rotating
direction of the axial fan and static pressure on the suction surface may be lower
than static pressure on the pressure surface.
[0016] The motor supporter may include a mount part in which the motor is mounted and support
legs extending from the mount part and connected to a designated fixing body to support
the motor, and the deflection parts may be formed on the support legs.
[0017] The support legs may be prepared in at least one pair and separated from each other
by a space into which the sucked air current is sucked, and one of the at least one
pair of the support legs may have a deflection surface gradually becoming closer to
the rotating axis in the direction of the rotating axis and formed at a part defining
the space. The deflection surface may include a deflection surface having a designated
angle from the axial direction of the axial fan to guide the sucked air current, the
support legs may include upper support legs extending upward from the mount part and
lower support legs extending downward from the mount part, and a deflection surface
formed on the upper support leg and a deflection surface formed on the lower support
leg may face opposite directions based on a fixed coordinate system. A vector from
a leading edge of the deflection part, which the sucked air current starts to contact,
to a trailing edge of the deflection part, from which the air current is separated,
may have the rotating direction component of the axial fan, the support legs may include
upper support legs extending upward from the mount part and lower support legs extending
downward from the mount part, and a first vector proceeding from the leading edge
to the trailing edge of the upper support leg and a second vector proceeding from
the leading edge to the trailing edge of the lower support leg may have direction
components of different signs based on a fixed coordinate system.
[0018] The support legs may be provided in plural and the sucked air current may pass through
spaces between the support legs provided in plural.
[0019] The motor supporter may include a mount part in which the motor is mounted, upper
support legs extending upward from the mount part and lower support legs extending
downward from the mount part, and the upper support legs and the lower support legs
may correspond to the deflection parts and deflect the sucked air current in opposite
directions.
BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Arrangements and embodiments may be described in detail with reference to the following
drawings in which like reference numerals refer to like elements and wherein:
FIG. 1 is a view illustrating direction components of an air current sucked from an
outdoor unit to an axial fan of an air conditioner in accordance with one embodiment
of the present invention;
FIG. 2 is a view illustrating a motor supporter in accordance with one embodiment
of the present invention;
FIGs. 3(a) and 3(b) are views comparatively illustrating a sucked air current in a
conventional air conditioner and a sucked air current in an air conditioner in accordance
with one embodiment of the present invention;
FIG. 4 is a view illustrating a motor supporter in accordance with another embodiment
of the present invention;
FIG. 5A is a cross-sectional view taken along line A-A of FIG. 4;
FIG. 5B is an enlarged view of the cross-section of a deflection part of FIG. 5A;
FIG. 6 is a graph illustrating static pressures according to air volumes if the motor
supporter of FIG. 4 is applied and if a conventional motor supporter is applied;
FIGs. 7(a) and (b) are graphs illustrating power consumption and generated noise according
to air volumes if the motor supporter of FIG. 4 is applied and if the conventional
motor supporter is applied;
FIG. 8 is a perspective view illustrating an outdoor unit of a general air conditioner;
FIG. 9 is a view illustrating inner elements of the outdoor unit of FIG. 8; and
FIG. 10 is a view illustrating a motor support structure in FIG. 8.
DETAILED DESCRIPTION OF THE EMBODIMENTS
[0021] The advantages, features and methods for achieving those of embodiments may become
apparent upon referring to embodiments described later in detail together with attached
drawings. However, embodiments are not limited to the embodiments disclosed hereinafter,
but may be embodied in different modes. The embodiments are provided for perfection
of disclosure and informing a scope to persons skilled in this field of art. The same
reference numbers may refer to the same elements throughout the specification.
[0022] FIG. 1 is a view illustrating direction components of an air current sucked from
an outdoor unit to an axial fan of an air conditioner in accordance with one embodiment
of the present invention. FIG. 2 is a view illustrating a motor supporter in accordance
with one embodiment of the present invention. FIGs. 3(a) and 3(b) are views comparatively
illustrating a sucked air current in a conventional air conditioner and a sucked air
current in an air conditioner in accordance with one embodiment of the present invention.
[0023] First, with reference to FIG. 1, direction components which will be described later
are defined.
[0024] In FIG. 1, a circle represents a rotating orbit of an axial fan 10, and
X̂, Ŷ and
Ẑ represent respective axes of an X-Y-Z fixed coordinate system when the axial direction
of the axial fan 10 is defined as
Ẑ. Further, a vector V on an XY plane of the fixed coordinate system is converted into
a rotating coordinate system including a rotating direction component
t̂ and a radial direction component
r̂ of the axial fan 10. Here, V represents a
Ŷ direction component of an air current sucked in the axial fan 10 (hereinafter, referred
to as a "sucked air current"). An angle θ is an angle rotated in a positive (+) direction
from the axis
Ẑ (in the counterclockwise rotating direction of the axial fan 10 in FIG. 1).
[0025] VŶ will be defined as below.

[0026] As known from the above Equation, the vector V has a rotating direction component
V2. The outdoor unit of the air conditioner of the present invention includes a motor
supporter deflecting an air current sucked in the axial direction
Ẑ of an axial fan 10 so as to have a rotating direction component. Hereinafter, embodiments
of the present invention will be described in more detail with reference to the accompanying
drawings.
[0027] With reference to FIGs. 1 to 3(b), an outdoor unit of an air conditioner in accordance
with one embodiment of the present invention includes an axial fan 10, a motor 30
rotating the axial fan 10, and a motor supporter supporting the motor 30.
[0028] The motor supporter 100 supports the motor 30 at the rear of the axial fan 10. The
motor supporter 100 may include at least one support leg 110 and 120 supporting the
motor 30. Further, the motor supporter 100 may include a mount part 130 into which
the motor 30 is inserted. The support legs 110 and 120 may extend from the mount part
130 and be connected to a designated fixing body, such as a casing 2, to support the
motor 30.
[0029] The support legs 110 and 120 may be provided in plural so as to distribute load applied
from the motor 30. In this embodiment, a pair of support legs 110 separated from each
other is provided on the upper portion of the mount part 130 and a pair of support
legs 120 separated from each other is provided on the lower portion of the mount part
130, but the disclosure is not limited thereto. An air current flows through separation
spaces S1 and S2 between the support legs 110 and 120. Hereinafter, among the support
legs 110 and 120, support legs extending upward from the mount part 130 will be referred
to as upper support legs 110 and support legs extending downward from the mount part
130 will be referred to as lower support legs 120.
[0030] Joint plates 141 and 142 may be formed at ends of the support legs 110 and 120 and
be combined with the casing 2. Hereinafter, among the joint plates 141 and 142, a
joint plate interconnecting ends of at least one pair of upper support legs 110 and
combined with the upper surface (not shown) of the casing 2 will be referred to as
an upper joint plate 141 and a joint plate interconnecting ends of at least one pair
of lower support legs 120 and combined with the bottom surface 2a of the casing 2
will be referred to as a lower joint plate 142.
[0031] The motor supporter 100 includes deflection parts D deflecting an air current sucked
in the axial fan 10 (i.e., a sucked air current) so as to have a rotating direction
component
t̂ of the axial fan 10. The deflection parts D may be formed on the support legs 110
and 120.
[0032] At least one deflection part D may be provided above a rotating axis of the motor
30 and at least one deflection part D may be provided below the rotating axis. The
deflection part D provided above the rotating axis and the deflection part D provided
below the rotating axis deflect the sucked air current in opposite directions.
[0033] The deflection part D may include a surface guiding the sucked air current, i.e.,
a deflection surface 111 or 121 formed at a designated angle α from the axial direction
Ẑ of an axial fan 10. the angle α may be an acute angle. Since the deflection surface
111 or 121 forms an acute angle α from the axial direction
Ẑ of an axial fan 10, at least one of the upper support legs 110 has a deflection surface
111 that gradually becomes closer to the rotating axis in the axial direction
Ẑ . Which one of the upper support legs 110 has the deflection surface 111 that gradually
becomes closer to the rotating axis in the axial direction
Ẑ is determined in consideration of the rotating direction of the axial fan 10. In
this embodiment, the deflection surface 111 that gradually becomes closer to the rotating
axis in the axial direction
Ẑ is formed at a part, defining the space S1, of the right upper support leg 110 of
one pair of upper support legs 110 in FIG. 2.
[0034] In the same manner, at least one of the lower support legs 120 has a deflection surface
121 that gradually becomes closer to the rotating axis in the axial direction
Ẑ. Since directions in which the sucked air current needs to be deflected in the upper
region and the lower region based on the mount part 130 are opposite to each other,
the deflection surface 121 of the lower support leg 120 that gradually becomes closer
to the rotating axis in the axial direction
Ẑ is formed at a part, defining the space S2, of the left lower leg 120 of one pair
of lower support legs 120 in FIG. 2, on the contrary to the upper support legs 110.
[0035] The sucked air current is guided by the deflection surfaces 111 and 121 and thus,
an air current having a rotating direction component
t̂ is formed. In more detail, an air current contact surface 115 or 125 of the deflection
part D contacting the sucked air current may be convex toward the upstream side of
the sucked air current. In this case, the deflection surface 111 or 121 is formed
on a forward facing surface of the air current contact surface 115 or 125, facing
the rotating direction of the axial fan 10 (the leftward direction in an area above
the mount part 130 and in the rightward direction in an area below the mount part
130, in FIG. 2), and a backward facing surface 112 or 122 is formed at a part of the
air current contact surface 115 or 125, facing the opposite direction to the rotating
direction of the axial fan 10. The deflection surface 111 or 121 and the backward
facing surface 112 or 122 may be connected by a connection surface 113 or 123.
[0036] The backward facing surface 112 or 122 extends from the connection surface 113 or
123 substantially in parallel with the axial direction
Ẑ from the upstream side to the downstream side of the air current. Therefore, the
angle α between the deflection surface 111 or 121 and the axial direction Z is greater
than the angle between the backward facing surface 112 or 122 and the axial direction
Ẑ. As exemplarily shown in FIGs. 3(a) and 3(b), in the conventional air conditioner,
sucked air has a component in the opposite direction to the rotating direction of
an axial fan, but, in this embodiment of the present invention, sucked air is deflected
by the deflection surfaces 111 and 121 and thus has the rotating direction component
t̂ of the axial fan 10.
[0037] As exemplarily shown in FIG. 2, the deflection surfaces 111 and 121 formed on the
support legs 110 and 120 face the rotating direction
t̂ of the axial fan 10 based on the rotating coordinate system, but the deflection surface
111 formed on the upper support leg 110 and the deflection surface 121 formed on the
lower support leg 120 face opposite directions based on the fixed coordinate system.
[0038] FIG. 4 is a view illustrating a motor supporter in accordance with another embodiment
of the present invention. FIG. 5A is a cross-sectional view taken along line A-A of
FIG. 4. FIG. 5B is an enlarged view of the cross-section 210(S) of a deflection part
of FIG. 5A.
[0039] With reference to FIG. 4 and FIGs. 5A and 5B, an outdoor unit of an air conditioner
in accordance with another embodiment of the present invention includes an axial fan
10, a motor 30 rotating the axial fan 10, and a motor supporter 200 supporting the
motor 30.
[0040] The motor supporter 200 supports the motor 30 at the rear of the axial fan 10. The
motor supporter 200 may include at least one support leg 210 and 220 supporting the
motor 30. Further, the motor supporter 200 may include a mount part 230 into which
the motor 30 is inserted. The support legs 210 and 220 may extend from the mount part
230 and be provided in plural so as to distribute load applied from the motor 30.
The support legs 210 and 220 are separated from each other, and an air current flows
through separation spaces between the support legs 210 and 220. The support legs 210
and 220 in plural may include at least one of upper support legs 210 extending upward
from the mount part 230 and lower support legs 220 extending downward from the mount
part 230.
[0041] Joint plates 241 and 242 may be formed at ends of the support legs 210 and 220 and
be combined with the casing 2. Hereinafter, among the joint plates 241 and 242, a
joint plate interconnecting ends of the upper support legs 210 and combined with the
upper surface (not shown) of the casing 2 will be referred to as an upper joint plate
241 and a joint plate interconnecting ends of the lower support legs 220 and combined
with the bottom surface 2a of the casing 2 will be referred to as a lower joint plate
242.
[0042] Reinforcing ribs 251 and 252 interconnecting the support legs 210 and 220 may be
further provided between the mount part 230 and the joint plates 241 and 242. The
reinforcing ribs 251 and 252 may include an upper reinforcing rib 251 interconnecting
the upper support legs 210 and a lower reinforcing rib 252 interconnecting the lower
support legs 220.
[0043] The motor supporter 200 includes deflection parts D' deflecting an air current sucked
in the axial fan 10 (i.e., a sucked air current) so as to have a rotating direction
component
t̂ of the axial fan 10. The deflection parts D' may be formed on the support legs 110
and 120.
[0044] In the deflection part D', a vector
V̂c proceeding from a leading edge LE of the deflection part D', which the sucked air
current starts to contact, to a trailing edge TE of the deflection part D', from which
the air current is separated, has the rotating direction component
t̂ of the axial fan 10. That is, the cross-section of the deflection part D', i.e.,
the cross-section of the deflection part D' taken long the XY plane, may have the
shape of a streamlined closed path or an airfoil and, in this case, the vector
V̂c is defined according to a chord connecting the leading edge LE to the trailing edge
TE of the deflection part D'.
[0045] Among an upper surface (or a suction surface) U and a lower surface (or a pressure
surface) L interconnecting the leading edge LE to the trailing edge TE of the deflection
part D', the lower surface L faces the rotating direction of the axial fan 10 and
the upper surface U faces the opposite direction to the rotating direction of the
axial fan 10. The velocity of the air current on the upper surface U is higher than
the velocity of the air current on the lower surface L and thus, the static pressure
on the upper surface U is lower than the static pressure on the lower surface L.
[0046] The air current flows through separation spaces between the support legs 210 and
220. The support legs 210 and 220 may include at least one of the upper support legs
210 extending upward from the mount part 230 and lower support legs 220 extending
downward from the mount part 230.
[0047] A first vector proceeding from the leading edge LE to the trailing edge TE of the
upper support leg 210 and a second vector proceeding from the leading edge LE to the
trailing edge TE of the lower support leg 220 face the rotating direction of the axial
fan 10 based on the rotating coordinate system, but have direction components of different
signs based on the fixed coordinate system. That is, the first vector has a component
Ŷ of a positive value and the second vector has a component
Ŷ of a negative value.
[0048] FIG. 6 is a graph illustrating static pressures according to air volumes if the motor
supporter of FIG. 4 is applied and if a conventional motor supporter is applied. FIGs.
7(a) and (b) are graphs illustrating power consumption and generated noise according
to air volumes if the motor supporter of FIG. 4 is applied and if the conventional
motor supporter is applied.
[0049] With reference to FIG. 6, according to experimentation, static pressure if the motor
supporter in accordance with the present invention is applied (with reference to a
curve (a')) is increased, as compared to static pressure if the conventional motor
supporter is applied (with reference to a curve (a)), and flow resistance if the motor
supporter in accordance with the present invention is applied (with reference to a
curve (b')) is decreased, as compared to flow resistance if the conventional motor
supporter is applied (with reference to a curve (b)). Therefore, although the conventional
outdoor unit may be operated at an air volume F so as to generate proper static pressure
and flow resistance, the outdoor unit in accordance with the present invention may
be operated at an increased air volume F' while generating static pressure and flow
resistance similar to those of the conventional outdoor unit. Increase in static pressure
and decrease in flow resistance improve performance of the axial fan 10. As exemplarily
shown in FIGs. 7(a) and 7(b), it is understood that the outdoor unit in accordance
with the present invention lowers power consumption and reduces a level of generated
noise, as compared to the conventional outdoor unit.
[0050] As apparent from the above description, an outdoor unit of an air conditioner in
accordance with one embodiment of the present invention may reduce resistance on a
flow path of an air current sucked into an axial fan.
[0051] Further, the outdoor unit of the air conditioner in accordance with the embodiment
of the present invention may increase performance of the axial fan, particularly,
static pressure of the axial fan.
[0052] Further, the outdoor unit of the air conditioner in accordance with the embodiment
of the present invention may reduce generated noise.
[0053] Further, since a unit to guide the air current sucked into the axial fan is implemented
by a motor supporter, the outdoor unit of the air conditioner in accordance with the
embodiment of the present invention does not require any separate guide unit, such
as a vane or an orifice, and may thus improve air blowing performance without great
change of the structure of a conventional outdoor unit.
1. An outdoor unit of an air conditioner comprising:
an axial fan (10);
a motor (30) rotating the axial fan (10); and
a motor supporter (100; 200) supporting the motor (30),
wherein the motor supporter (100; 200) includes deflection parts deflecting an air
current sucked into the axial fan (10) so as to have a rotating direction component
of the axial fan (10), and at least one of the deflection parts includes a deflection
surface (111, 121) having a designated angle from the axial direction of the axial
fan (10) to guide the sucked air current,
wherein at least two air current contact surfaces (115, 125) of said deflection part
contacting the sucked air current are convex toward the upstream side of the sucked
air current,
characterized in that
each of said at least two air current contact surfaces (115, 125) includes:
a forward facing surface facing the rotating direction of the axial fan (10); and
a backward facing surface (112, 122) facing the opposite direction to the rotating
direction of the axial fan,
wherein the deflection surface (111, 121) is formed on the forward facing surface,
and the backward facing surface (112, 122) extends in parallel with an axial direction
of the axial fan (10).
2. The outdoor unit according to claim 1, wherein the angle is an acute angle.
3. The outdoor unit according to claim 1 or 2, wherein the deflection surface (111, 121)
extends so as to be gradually closer to the rotating axis of the axial fan (10) in
the direction of the rotating axis.
4. The outdoor unit according to any one of claims 1 to 3, wherein the deflection parts
include at least one deflection part provided above the rotating axis of the motor
(30) and at least one deflection part provided below the rotating axis of the motor
(30),
wherein the at least one deflection part provided above the rotating axis of the motor
(30) and the at least one deflection part provided below the rotating axis of the
motor deflect the sucked air current in opposite directions.
5. The outdoor unit according to any one of claims 1 to 4, wherein a vector proceeding
from a leading edge of at least one of the deflection parts, which the sucked air
current starts to contact, to a trailing edge of said deflection part, from which
the air current is separated, has the rotating direction component of the axial fan
(10).
6. The outdoor unit according to claim 5, wherein the leading edge and the trailing edge
are located on a streamlined closed path.
7. The outdoor unit according to claim 6, wherein, among a suction surface and a pressure
surface of said deflection part interconnecting the leading edge and the trailing
edge, the pressure surface faces the rotating direction of the axial fan (10) and
static pressure on the suction surface is lower than static pressure on the pressure
surface.
8. The outdoor unit according to claim 1, wherein the motor supporter includes:
a mount part (130) in which the motor (30) is mounted; and
support legs (110, 120) extending from the mount part (130) and connected to a designated
fixing body (2) to support the motor (30),
wherein the deflection parts are formed on the support legs (110, 120).
9. The outdoor unit according to claim 8, wherein the support legs (110, 120) are prepared
in at least one pair and separated from each other by a space into which the sucked
air current is sucked,
wherein one of the at least one pair of the support legs (110, 120) has a deflection
surface (111, 121) gradually becoming closer to the rotating axis in the direction
of the rotating axis and formed at a part defining the space.
10. The outdoor unit according to claim 8, wherein:
at least one of the deflection parts includes a deflection surface having a designated
angle from the axial direction of the axial fan (10) to guide the sucked air current;
and
the support legs (110, 120) include:
upper support legs (110) extending upward from the mount part; and
lower support legs (120) extending downward from the mount part,
wherein a deflection surface (111) formed on the upper support leg (110) and a deflection
surface (121) formed on the lower support leg (120) face opposite directions based
on a fixed coordinate system.
11. The outdoor unit according to claim 1, wherein the motor supporter (100; 200) includes:
a mount part (130) in which the motor is mounted;
upper support legs (110) extending upward from the mount part (130); and
lower support legs (120) extending downward from the mount part, wherein:
the upper support legs (110) and the lower support legs (120) correspond to the deflection
parts; and
the upper support legs (110) and the lower support legs (120) deflect the sucked air
current in opposite directions.
1. Außeneinheit einer Klimaanlage mit:
einem Axialventilator (10);
einem Motor (30), der den Axialventilator (10) dreht; und
einer Motorhalterung (100; 200), die den Motor (30) hält, wobei die Motorhalterung
(100; 200) Ablenkteile aufweist, die einen in den Axialventilator (10) gesaugten Luftstrom
so ablenken, dass er eine Drehrichtungskomponente des Axialventilators (10) aufweist,
und mindestens eines der Ablenkteile eine Ablenkfläche (111, 121) mit einem bestimmten
Winkel von der axialen Richtung des Axialventilators (10) aufweist, um den angesaugten
Luftstrom zu führen,
wobei mindestens zwei Luftstromkontaktflächen (115, 125) des Ablenkteils, die den
angesaugten Luftstrom berühren, zur Stromaufwärtsseite des angesaugten Luftstroms
konvex sind,
dadurch gekennzeichnet, dass
jede der mindestens zwei Luftstromkontaktflächen (115, 125) aufweist:
eine nach vorn weisende Fläche, die in die Drehrichtung des Axialventilators (10)
weist; und
eine nach hinten weisende Fläche (112, 122), die in die zur Drehrichtung des Axialventilators
entgegengesetzte Richtung weist,
wobei die Ablenkfläche (111, 121) an der nach vorn weisenden Fläche ausgebildet ist,
und sich die nach hinten weisende Fläche (112, 122) parallel zur axialen Richtung
des Axialventilators (10) erstreckt.
2. Außeneinheit nach Anspruch 1, wobei der Winkel ein spitzer Winkel ist.
3. Außeneinheit nach Anspruch 1 oder 2, wobei sich die Ablenkfläche (111, 121) so erstreckt,
dass sie der Drehachse des Axialventilators (10) in der Richtung der Drehachse allmählich
näherkommt.
4. Außeneinheit nach einem der Ansprüche 1 bis 3, wobei die Ablenkteile mindestens ein
Ablenkteil, das über der Drehachse des Motors (30) vorgesehen ist, und mindestens
ein Ablenkteil aufweisen, das unter der Drehachse des Motors (30) vorgesehen ist,
wobei das mindestens eine Ablenkteil, das über der Drehachse des Motors (30) vorgesehen
ist und das mindestens eine Ablenkteil, das unter der Drehachse des Motors vorgesehen
ist, den angesaugten Luftstrom in entgegengesetzte Richtungen ablenken.
5. Außeneinheit nach einem der Ansprüche 1 bis 4, wobei ein Vektor, der von einer Vorderkante
von mindestens einem der Ablenkteile, die der angesaugte Luftstrom zuerst berührt,
zu einer Hinterkante des Ablenkteils verläuft, von der der Luftstrom getrennt wird,
eine Drehrichtungskomponente des Axialventilators (10) aufweist.
6. Außeneinheit nach Anspruch 5, wobei die Vorderkante und die Hinterkante auf einem
stromlinienförmigen geschlossenen Weg angeordnet sind.
7. Außeneinheit nach Anspruch 6, wobei von einer Saugfläche und einer Druckfläche des
Ablenkteils, die die Vorderkante und die Hinterkante verbinden, die Druckfläche in
die Drehrichtung des Axialventilators (10) weist und der statische Druck an der Saugfläche
niedriger als der statische Druck an der Druckfläche ist.
8. Außeneinheit nach Anspruch 1, wobei die Motorhalterung aufweist:
einen Befestigungsteil (130), in dem der Motor (30) befestigt ist; und
Halteschenkel (110, 120), die sich vom Befestigungsteil (130) erstrecken und mit einem
bestimmten Befestigungskörper (2) verbunden sind, um den Motor (30) zu halten,
wobei die Ablenkteile an den Halteschenkeln (110, 120) ausgebildet sind.
9. Außeneinheit nach Anspruch 8, wobei die Halteschenkel (110, 120) in mindestens einem
Paar vorgesehen sind und durch einen Raum voneinander getrennt sind, in den der angesaugte
Luftstrom gesaugt wird,
wobei einer des mindestens einen Paars der Halteschenkel (110, 120) eine Ablenkfläche
(111, 121) aufweist, die in der Richtung der Drehachse allmählich der Drehachse näherkommt
und an einem Teil ausgebildet ist, der den Raum definiert.
10. Außeneinheit nach Anspruch 8, wobei:
mindestens eines der Ablenkteile eine Ablenkfläche mit einem bestimmten Winkel von
der axialen Richtung des Axialventilators (10) aufweist, um den angesaugten Luftstrom
zu führen; und
die Halteschenkel (110, 120) aufweisen:
obere Halteschenkel (110), die sich vom Befestigungsteil nach oben erstrecken; und
untere Halteschenkel (120), die sich vom Befestigungsteil nach unten erstrecken,
wobei eine Ablenkfläche (111), die am oberen Halteschenkel (110) ausgebildet ist,
und eine Ablenkfläche (121), die am unteren Halteschenkel (120) ausgebildet ist, beruhend
auf einem festen Koordinatensystem in entgegengesetzte Richtungen weisen.
11. Außeneinheit nach Anspruch 1, wobei die Motorhalterung (100; 200) aufweist:
einen Befestigungsteil (130), in dem der Motor befestigt ist;
obere Halteschenkel (110), die sich vom Befestigungsteil (130) nach oben erstrecken;
und
untere Halteschenkel (120), die sich vom Befestigungsteil nach unten erstrecken, wobei:
die oberen Halteschenkel (110) und die untere Halteschenkeln (120) den Ablenkteilen
entsprechen; und
die oberen Halteschenkel (110) und die unteren Halteschenkel (120) den angesaugten
Luftstrom in entgegengesetzte Richtungen ablenken.
1. Unité extérieure d'un climatiseur, comprenant :
un ventilateur axial (10) ;
un moteur (30) entraînant le ventilateur axial (10) en rotation ; et
un support de moteur (100 ; 200) supportant le moteur (30), ledit support de moteur
(100 ; 200) présentant des éléments de déflexion déviant un courant d'air aspiré dans
le ventilateur axial (10) de manière à obtenir une composante de sens de rotation
du ventilateur axial (10), et au moins un des éléments de déflexion présentant une
surface de déflexion (111, 121) formant un angle défini avec la direction axiale du
ventilateur axial (10) pour guider le courant d'air aspiré,
où au moins deux surfaces de contact de courant d'air (115, 125) de l'élément de déflexion
contactant le courant d'air aspiré sont convexes vers le côté amont du courant d'air
aspiré,
caractérisée en ce que
chacune des au moins deux surfaces de contact de courant d'air (115, 125) présente
:
une surface orientée vers l'avant, orientée dans le sens de rotation du ventilateur
axial (10) ; et
une surface orientée vers l'arrière (112, 122), orientée dans le sens opposé au sens
de rotation du ventilateur axial,
où la surface de déflexion (111, 121) est formée sur la surface orientée vers l'avant,
et la surface orientée vers l'arrière (112, 122) s'étend parallèlement à une direction
axiale du ventilateur axial (10).
2. Unité extérieure selon la revendication 1, où l'angle est un angle aigu.
3. Unité extérieure selon la revendication 1 ou la revendication 2, où la surface de
déflexion (111, 121) s'étend de manière à se rapprocher progressivement de l'axe de
rotation du ventilateur axial (10) dans la direction de l'axe de rotation.
4. Unité extérieure selon l'une des revendications 1 à 3, où les éléments de déflexion
comprennent au moins un élément de déflexion disposé au-dessus de l'axe de rotation
du moteur (30) et au moins un élément de déflexion disposé en dessous de l'axe de
rotation du moteur (30),
où ledit au moins un élément de déflexion disposé au-dessus de l'axe de rotation du
moteur (30) et ledit au moins un élément de déflexion disposé en dessous de l'axe
de rotation du moteur dévient le courant d'air aspiré dans des directions opposées.
5. Unité extérieure selon l'une des revendications 1 à 4, où un vecteur allant d'un bord
avant d'au moins un des éléments de déflexion que le courant d'air aspiré commence
à contacter à un bord de fuite de l'élément de déflexion, par lequel le courant d'air
est divisé, présente la composante de sens de rotation du ventilateur axial (10).
6. Unité extérieure selon la revendication 5, où le bord avant et le bord de fuite sont
présentés sur un circuit fermé profilé.
7. Unité extérieure selon la revendication 6, où, entre une surface d'aspiration et une
surface de pression de l'élément de déflexion reliant le bord avant au bord de fuite,
la surface de pression est orientée vers le sens de rotation du ventilateur axial
(10) et une pression statique sur la surface d'aspiration est inférieure à une pression
statique sur la surface de pression.
8. Unité extérieure selon la revendication 1, où le support de moteur présente :
une partie de montage (130) où le moteur (30) est monté ; et
des jambes d'appui (110, 120) s'étendant depuis la partie de montage (130) et raccordés
à un corps de fixation défini (2) pour supporter le moteur (30),
les éléments de déflexion étant formés sur les jambes d'appui (110, 120).
9. Unité extérieure selon la revendication 8, où les jambes d'appui (110, 120) sont prévues
en au moins une paire et séparées l'une de l'autre par un espace où le courant d'air
est aspiré,
où une paire parmi la ou les paires de jambes d'appui (110, 120) présente une surface
de déflexion (111, 121) se rapprochant progressivement de l'axe de rotation dans la
direction de l'axe de rotation, et formée dans une partie définissant l'espace.
10. Unité extérieure selon la revendication 8, où :
au moins un des éléments de déflexion présente une surface de déflexion formant un
angle défini avec la direction axiale du ventilateur axial (10) pour guider le courant
d'air aspiré ; et
les jambes d'appui (110, 120) comprennent :
des jambes d'appui supérieures (110) s'étendant vers le haut depuis la partie de montage
; et
des jambes d'appui inférieures (120) s'étendant vers le bas depuis la partie de montage,
une surface de déflexion (111) formée sur la jambe d'appui supérieure (110) et une
surface de déflexion (121) formée sur la jambe d'appui inférieure (120) étant orientées
dans des directions opposées dans un système de coordonnées fixes.
11. Unité extérieure selon la revendication 1, où le support de moteur (100 ; 200) présente
:
une partie de montage (130) où le moteur est monté ;
des jambes d'appui supérieures (110) s'étendant vers le haut depuis la partie de montage
(130) ; et
des jambes d'appui inférieures (120) s'étendant vers le bas depuis la partie de montage,
où :
les jambes d'appui supérieures (110) et les jambes d'appui inférieures (120) correspondent
aux éléments de déflexion ; et
les jambes d'appui supérieures (110) et les jambes d'appui inférieures (120) dévient
le courant d'air aspiré dans des directions opposées.