Outdoor unit

Abstract

Provided is an outdoor unit in which a fan motor support mechanism (50) has a pair of first shaft-form parts (51) formed so as to extend toward a support region (SA) sandwiched between a front wall part (41) and a rear wall part (42), and a pair of second shaft-form parts (52) formed so as to extend toward the support region (SA). The first shaft-form parts (51) have a first deflection region (51A) extending in a direction deflected at a first deflection angle (θ11) with respect to a first horizontal axis (HX1) passing through a drive shaft (21), and a first inclined region (51B) extending in a direction inclined at a first inclination angle (θ12) with respect to the drive shaft (21). The second shaft-form parts (52) have a second deflection region (52A) extending in a direction deflected at a second deflection angle (θ21) with respect to the first horizontal axis (HX1) passing through the drive shaft (21), and a second inclined region (52B) extending in a direction inclined at a second inclination angle (θ22) with respect to the drive shaft (21).

Description

Outdoor Unit

[0001] The present disclosure relates to an outdoor unit for an air conditioner.

[0002] Conventionally, there is known an outdoor unit in which a heat exchanger is disposed inside a housing, and a blower disposed above the heat exchanger is operated to draw outside air into the housing and perform heat exchange in the heat exchanger (see, for example, Patent Document 1). Patent Document 1 discloses that a fan motor that drives a blower is supported at a position above the heat exchanger by a plurality of brackets attached to a frame of the housing.

[0003] Japanese Unexamined Patent Application Publication No. 2017-26187

[0004] In Patent Document 1, the position in the height direction of a motor mounting portion where the fan motor is supported is lower than the position in the height direction where the bracket is attached to the frame. Therefore, a sufficient distance between the tip of the fan of the blower and the bracket cannot be secured, and noise generated when air blown by the blower passes through the bracket increases.

[0005] Further, in Patent Document 1, the axially formed bracket has a region extending substantially vertically from the position in the height direction where the bracket is attached to the frame to the position in the height direction of the motor mounting portion. Therefore, the length of the bracket becomes longer compared to a case where the frame and the motor mounting portion are linearly connected. As a result, the natural frequency of the fan motor determined by the rigidity of the bracket cannot be appropriately set, and there is a possibility that resonance with the primary rotational frequency of the fan cannot be appropriately avoided.

[0006] The present disclosure has been made in view of the above circumstances, and an object thereof is to provide an outdoor unit capable of securing a sufficient distance from the support mechanism of the fan motor to the fan to suppress noise and increasing the rigidity of the support mechanism.

[0007] To solve the above problems, the outdoor unit of the present disclosure employs the following means. An outdoor unit according to one aspect of the present disclosure includes a fan motor that rotates a drive shaft extending in the height direction, a fan attached to the drive shaft and rotating about a rotation axis extending in the height direction, a heat exchanger disposed below the fan, a housing that houses the fan motor, the fan and the heat exchanger and has an air outlet located above the fan and an intake port for taking in air from the outside toward the air outlet from the heat exchanger, and a support mechanism attached to the housing at a first predetermined height mounting position in the height direction and supporting the fan motor at a second predetermined height support position above the first predetermined height, wherein the housing has a first wall portion extending along the height direction and a second wall portion extending along the height direction and disposed parallel to the first wall portion, and the support mechanism has one end attached to the mounting positions of the first wall portion and the second wall portion and has a support area sandwiched between the first wall portion and the second wall portion The first axial portion comprises a pair of first axial portions formed to extend toward the support position, and a pair of second axial portions, one end of which is attached to the mounting position of the first wall portion and the second wall portion, and which are formed to extend toward the support position of the support area, wherein the first axial portion comprises a first deflection region extending in a direction deflected by a first deflection angle of 30 degrees or more and 60 degrees or less in a plan view with respect to a first horizontal axis perpendicular to the first wall portion and the second wall portion and passing through the drive shaft, and the first The first inclined region extends in a direction inclined at a first inclination angle of 30 degrees or more and 60 degrees or less with respect to the drive shaft from a predetermined height to a second predetermined height, and the second axial portion has a second deflection region that extends in a direction deflected at a second deflection angle of 30 degrees or more and 60 degrees or less with respect to the first horizontal axis in a plan view, and a second inclined region that extends in a direction inclined at a second inclination angle of 30 degrees or more and 60 degrees or less with respect to the drive shaft from a first predetermined height to a second predetermined height.

[0008] According to this disclosure, it is possible to provide an outdoor unit that can suppress noise by ensuring a sufficient distance from the fan motor support mechanism to the fan, while also increasing the rigidity of the support mechanism.

[0009] This is a perspective view of an outdoor unit according to the first embodiment of this disclosure. This is a cross-sectional view of the outdoor unit shown in Figure 1, taken along the line A-A. This is a perspective view of the vicinity of the fan shown in Figure 2. This is a plan view of the fan motor support mechanism shown in Figure 3, viewed from above. This is a partially enlarged view of the support mechanism shown in Figure 4. This is a side view of the first axial part of the support mechanism shown in Figure 5, viewed from the direction of the second horizontal axis. This is a side view of the second axial part of the support mechanism shown in Figure 5, viewed from the direction of the second horizontal axis. This is a plan view of the fan motor support mechanism according to the second embodiment of this disclosure, viewed from above. This is a side view of the first and second axial parts of the support mechanism shown in Figure 8, viewed from the direction of the first horizontal axis. This is a plan view of the fan motor support mechanism according to the third embodiment of this disclosure, viewed from above. This is a side view of the first axial part of the support mechanism shown in Figure 10, viewed from the direction of the second horizontal axis. This is a partially enlarged view showing a modified example of the support mechanism.

[0010] [First Embodiment] Hereinafter, an outdoor unit 100 according to the first embodiment of the present disclosure will be described with reference to the drawings. Figure 1 is a perspective view of the outdoor unit 100 according to the first embodiment of the present disclosure. Figure 2 is a cross-sectional view of the outdoor unit 100 shown in Figure 1, taken along the line A-A. Figure 3 is a perspective view of the vicinity of the fan 10 shown in Figure 2. In Figure 3, a part of the housing 40 surrounding the fan 10 is omitted.

[0011] The outdoor unit 100 of this embodiment is suitable, for example, as an outdoor unit for a multi-split air conditioner in a building. As shown in Figures 1 to 3, the outdoor unit 100 of this embodiment comprises a pair of fans 10, a pair of fan motors 20, a heat exchanger 30, a housing 40, and a support mechanism 50.

[0012] Fan 10 is a device that rotates around a rotation axis RX extending in the height direction HD, blowing air from below in the height direction HD upwards. Fan motor 20 is an electric motor that rotates a drive shaft 21 extending in the height direction HD. Fan 10 is attached to the drive shaft 21.

[0013] The heat exchanger 30 is positioned below the fan 10 in the height direction HD and is a device that performs heat exchange between the outside air and a heat exchange medium circulating inside. The heat exchanger 30 circulates the heat exchange medium between itself and an indoor unit (not shown) which is connected via piping (not shown) through which the heat exchange medium circulates.

[0014] The housing 40 is a structure that houses the fan 10, the fan motor 20, the heat exchanger 30, and other auxiliary components. The housing 40 has a roughly rectangular parallelepiped shape and includes a front wall portion (first wall portion) 41, a rear wall portion (second wall portion) 42, a side wall portion 43, a side wall portion 44, a horizontally positioned top portion 45, and a bottom portion (not shown).

[0015] The rear wall portion 42 is arranged parallel to the front wall portion 41. The side wall portion 44 is arranged parallel to the side wall portion 43. Multiple intake ports 41a are formed in the front wall portion 41 for taking in air from the outside toward the heat exchanger 30. Multiple intake ports 43a are formed in the side wall portion 43 for taking in air from the outside toward the heat exchanger 30. Multiple intake ports (not shown) are formed in the side wall portion 44 for taking in air from the outside toward the heat exchanger 30. A pair of outlets 45a are formed in the top surface portion 45, which are located above the fan 10 and blow out the air that has exchanged heat with the heat exchange medium in the heat exchanger 30 to the outside.

[0016] The support mechanism 50 is mounted at a first predetermined height H1 in the height direction HD of the housing 40 and supports the fan motor 20 at a support position at a second predetermined height H2 which is above the first predetermined height H1. The first predetermined height H1 and the second predetermined height H2 are heights along the height direction HD from the ground surface S on which the outdoor unit 100 is installed.

[0017] Here, the support mechanism 50 will be described in detail with reference to the drawings. Figure 4 is a plan view of the support mechanism 50 of the fan motor 20 shown in Figure 3, viewed from above. Figure 5 is a partially enlarged view of the support mechanism 50 shown in Figure 4. Figure 6 is a side view of the first axial portion 51 of the support mechanism 50 shown in Figure 5, viewed from the direction of the second horizontal axis HX2. Figure 7 is a side view of the second axial portion 52 of the support mechanism shown in Figure 5, viewed from the direction of the second horizontal axis HX2.

[0018] As shown in Figures 4 and 5, the support mechanism 50 includes a pair of first axial portions 51, a pair of second axial portions 52, a first connecting portion 53, a second connecting portion 54, a pair of first support portions 55, and a pair of second support portions 56.

[0019] The first axial portion 51 is formed in an axial shape so that one end 51a is attached to the mounting positions of the front wall portion 41 and the rear wall portion 42, and it extends toward the support position of the support region SA sandwiched between the front wall portion 41 and the rear wall portion 42. As shown in Figures 5 and 6, the first axial portion 51 has a first deflection region 51A, a first inclined region 51B, and a first connecting region 51C.

[0020] As shown in Figure 5, the first deflection region 51A is a region that extends in a direction deflected by a first deflection angle θ11 with respect to a first horizontal axis HX1 that is perpendicular to the front wall portion 41 and the rear wall portion 42 and passes through the drive shaft 21 when the support mechanism 50 is viewed from above. The first deflection angle θ11 is set in the range of 30 degrees or more and 60 degrees or less. Preferably, the first deflection angle θ11 is set to 40 degrees or more and 50 degrees or less.

[0021] As shown in Figure 6, the first inclined region 51B is a region that extends in a direction inclined at a first inclination angle θ12 with respect to the rotation axis RX parallel to the drive shaft 21, from the mounting position in the height direction HD of the first predetermined height H1 to the support position in the height direction HD of the second predetermined height H2. The first inclined region 51B extends in a direction inclined at a first inclination angle θ12 with respect to the drive shaft 21 when viewed from the direction of the second horizontal axis HX2 which is perpendicular to the first horizontal axis HX1. The first inclination angle θ12 is set in the range of 30 degrees or more and 60 degrees or less. Preferably, the first inclination angle θ12 is set to 40 degrees or more and 50 degrees or less.

[0022] As shown in Figures 5 and 6, the first connecting region 51C extends along the first horizontal axis HX1 and connects the front wall portion 41 and the rear wall portion 42 with the first deflection region 51A. The pair of first axial portions 51 are connected by a first connecting portion 53 that extends parallel to the first horizontal axis HX1 in the support region SA. The pair of first axial portions 51 and the first connecting portion 53 are integrally formed, for example, from a single hollow metal tube.

[0023] The second axial portion 52 is formed in an axial shape so that one end 52a is attached to the mounting positions of the front wall portion 41 and the rear wall portion 42, and it extends toward the support position of the support region SA sandwiched between the front wall portion 41 and the rear wall portion 42. As shown in Figures 5 and 7, the second axial portion 52 has a second deflection region 52A, a second inclined region 52B, and a second connecting region 52C.

[0024] As shown in Figure 5, the second deflection region 52A is a region that extends in a direction deflected by a second deflection angle θ21 with respect to the first horizontal axis HX1, which is perpendicular to the front wall portion 41 and the rear wall portion 42 when the support mechanism 50 is viewed from above and passes through the drive shaft 21. The second deflection angle θ21 is set in the range of 30 degrees or more and 60 degrees or less. Preferably, the second deflection angle θ21 is set to 40 degrees or more and 50 degrees or less.

[0025] As shown in Figure 7, the second inclined region 52B is a region that extends in a direction inclined at a second inclination angle θ22 with respect to the rotation axis RX parallel to the drive shaft 21, from the mounting position in the height direction HD of the first predetermined height H1 to the support position in the height direction HD of the second predetermined height H2. The second inclined region 52B extends in a direction inclined at a second inclination angle θ22 with respect to the drive shaft 21 when viewed from the side along the second horizontal axis HX2. The second inclination angle θ22 is set in the range of 30 degrees or more and 60 degrees or less. Preferably, the second inclination angle θ22 is set at 40 degrees or more and 50 degrees or less.

[0026] As shown in Figures 5 and 7, the second connecting region 52C extends along the first horizontal axis HX1 and connects the front wall portion 41 and the rear wall portion 42 with the second deflection region 52A. The pair of second axial portions 52 are connected in the support region SA by a second connecting portion 54 that extends parallel to the first horizontal axis HX1. The pair of second axial portions 52 and the second connecting portion 54 are integrally formed, for example, from a single hollow metal tube.

[0027] The pair of first support parts 55 are members attached to the first connecting part 53 and the second connecting part 54, respectively, and are members for transmitting the weight of the fan motor 20 to the first connecting part 53 and the second connecting part 54 via the pair of second support parts 56. The first support parts 55 are formed to extend parallel to the first horizontal axis HX1 and have a rectangular prism shape with a roughly U-shaped cross-section, where only the downward-facing surface is cut out.

[0028] The pair of second support parts 56 are members attached to the first support part 55, and are members for transmitting the weight of the fan motor 20 to the first connecting part 53 and the second connecting part 54 via the pair of first support parts 55. The second support part 56 is a plate-shaped member formed to extend parallel to the second horizontal axis HX2 and having a surface perpendicular to the rotation axis RX. As shown in Figure 4, the pair of first support parts 55 and the pair of second support parts 56 are integrally connected by fastening bolts B. The first support part 55 and the first connecting part 53, and the first support part 55 and the second connecting part 54 are integrally connected by welding or by fastening bolts (not shown).

[0029] The functions and effects of the outdoor unit 100 of this embodiment, as described above, will now be explained.

[0030] According to the outdoor unit of the first aspect of this disclosure, the support mechanism 50 is attached to the housing 40 that houses the fan 10 at a mounting position at a first predetermined height H1, and supports the fan motor 20 at a support position at a second predetermined height H2 which is above the first predetermined height H1. When a sufficient distance HD in the height direction is secured from the support mechanism 50 to the fan 10, the vorticity of the vortices generated when the air blown by the fan 10 passes through the support mechanism 50 decreases due to its own viscosity and the influence of the main flow before it reaches the fan 10, and the interference between the fan 10 and the vortices is reduced, so that the noise of the fan 10 can be suppressed.

[0031] In the outdoor unit 100 of this embodiment, a pair of first axial portions 51, one end of which is attached to a mounting position at a first predetermined height H1 on the front wall portion 41 and the rear wall portion 42, and a pair of second axial portions 52, one end of which is attached to a mounting position at a first predetermined height H1 on the front wall portion 41 and the rear wall portion 42, are formed to extend toward a support position at a second predetermined height H2 in the support region SA sandwiched between the front wall portion 41 and the rear wall portion 42.

[0032] The first axial portion 51 has a first deflection region 51A that extends in a direction deflected by a first deflection angle θ11 of 30 degrees or more and 60 degrees or less in a plan view with respect to the first horizontal axis HX1. Therefore, rigidity can be applied in the direction in which the first deflection region 51A extends against vibrations in each direction acting on the fan motor 20 in a horizontal plane perpendicular to the drive shaft 21. Furthermore, the first axial portion 51 has a first inclined region 51B that extends in a direction inclined by a first inclination angle θ12 of 30 degrees or more and 60 degrees or less with respect to the drive shaft 21, from a first predetermined height H1 to a second predetermined height H2. Therefore, rigidity can be applied in the direction in which the first deflection region 51A and the first inclined region 51B extend against vibrations in each direction acting on the fan motor 20 in a vertical plane in which the first deflection region 51A and the first inclined region 51B are located. As described above, the first axial portion 51 can support the fan motor at an angle to both the surface on which the first horizontal axis HX1 and the second horizontal axis HX2 are positioned, and the surface on which the first horizontal axis HX1 and the rotation axis RX are positioned. Therefore, it does not have low rigidity with respect to a particular surface, and resonance can be appropriately avoided.

[0033] The second axial portion 52 has a second deflection region 52A that extends in a direction deflected by a second deflection angle θ21 of 30 degrees or more and 60 degrees or less in a plan view with respect to the first horizontal axis HX1. Therefore, rigidity can be applied in the direction in which the second deflection region 52A extends against vibrations acting on the fan motor 20 in each direction in a horizontal plane perpendicular to the drive shaft 21. Furthermore, the second axial portion 52 has a second inclined region 52B that extends in a direction inclined by a second inclination angle θ22 of 30 degrees or more and 60 degrees or less with respect to the drive shaft 21, from a first predetermined height H1 to a second predetermined height H2. Therefore, rigidity can be applied in the direction in which the second deflection region 52A and the second inclined region 52B extend against vibrations acting on the fan motor 20 in each direction in a vertical plane where the second deflection region 52A and the second inclined region 52B are located. As described above, the second axial portion 52 can support the fan motor at an angle to either the surface on which the first horizontal axis HX1 and the second horizontal axis HX2 are positioned, or the surface on which the first horizontal axis HX1 and the rotation axis RX are positioned. Therefore, it does not have low rigidity with respect to a particular surface, and resonance can be appropriately avoided.

[0034] As described above, the outdoor unit 100 of this embodiment provides an outdoor unit 100 that can suppress noise by ensuring a sufficient distance from the support mechanism 50 of the fan motor 20 to the tip of the fan 10, and can also increase the rigidity of the support mechanism 50. By increasing the rigidity of the support mechanism 50, resonance with the primary rotation frequency of the fan 10 can be appropriately avoided.

[0035] In the outdoor unit 100 of this embodiment, since the other ends of the pair of first axial portions 51 are connected via the first connecting portion 53, the rigidity of the axial structure including the pair of first axial portions 51 and the first connecting portion 53 can be increased. Similarly, since the other ends of the pair of second axial portions 52 are connected via the second connecting portion 54, the rigidity of the axial structure including the pair of second axial portions 52 and the second connecting portion 54 can be increased.

[0036] [Second Embodiment] Next, an outdoor unit according to the second embodiment of the present disclosure will be described with reference to the drawings. Figure 8 is a plan view of the support mechanism 50 of the fan motor 20 according to the second embodiment of the present disclosure, viewed from above. Figure 9 is a side view of the first axial portion 51 and the second axial portion 52 of the support mechanism 50 shown in Figure 8, viewed from the direction of the first horizontal axis HX1. This embodiment is a modification of the first embodiment and is the same as the first embodiment unless otherwise specifically described below, so the following description will be omitted.

[0037] In the support mechanism 50 of the first embodiment, the first inclined region 51B is a region that extends in a direction inclined with respect to the drive shaft 21 at a first inclination angle θ12 when viewed from the side along the second horizontal axis HX2, and the second inclined region 52B is a region that extends in a direction inclined with respect to the drive shaft 21 at a second inclination angle θ22 when viewed from the side along the second horizontal axis HX2.

[0038] In contrast, in the support mechanism 50 of the second embodiment, the first inclined region 51B is a region that extends in a direction inclined with respect to the drive shaft 21 at a first inclination angle θ12 when viewed from the side along the first horizontal axis HX1, and the second inclined region 52B is a region that extends in a direction inclined with respect to the drive shaft 21 at a second inclination angle θ22 when viewed from the side along the first horizontal axis HX1.

[0039] As shown in Figure 8, in the support mechanism 50 of this embodiment, the first inclined region 51B of the first axial portion 51 is formed to extend along the second horizontal axis HX2 when viewed from above, and the second inclined region 52B of the second axial portion 52 is formed to extend along the second horizontal axis HX2 when viewed from above. As shown in Figure 9, the first inclined region 51B is a region that extends in a direction inclined with respect to the drive shaft 21 at a first inclination angle θ12 when viewed from the side along the first horizontal axis HX1, and the second inclined region 52B is a region that extends in a direction inclined with respect to the drive shaft 21 at a second inclination angle θ22 when viewed from the side along the first horizontal axis HX1.

[0040] In the outdoor unit of this embodiment, the first inclined region 51B extends in a direction inclined with respect to the drive shaft 21 at a first inclination angle θ12 within a vertical plane parallel to the second horizontal axis HX2, and the second inclined region 52B extends in a direction inclined with respect to the drive shaft at a second inclination angle θ22 within a vertical plane parallel to the second horizontal axis HX2. Therefore, the length of the support mechanism 50 in the direction along the first horizontal axis HX1 can be shortened.

[0041] [Third Embodiment] Next, an outdoor unit according to the third embodiment of the present disclosure will be described with reference to the drawings. Figure 10 is a plan view of the support mechanism 50 of the fan motor 20 according to the third embodiment of the present disclosure, viewed from above. Figure 11 is a side view of the first axial portion 51 of the support mechanism 50 shown in Figure 10, viewed from the direction of the second horizontal axis HX2. This embodiment is a modification of the first embodiment and is the same as the first embodiment unless otherwise specifically described below, so the following description will be omitted.

[0042] In the support mechanism 50 of the first embodiment, the first inclined region 51B is a region that extends parallel to the first horizontal axis HX1 when viewed from above, and the second inclined region 52B is a region that extends parallel to the first horizontal axis HX1 when viewed from above.

[0043] In contrast, in the support mechanism 50 of the third embodiment, the first inclined region 51B is a region that extends in a direction deflected by a first deflection angle θ11 with respect to the first horizontal axis HX1 when viewed from above, and the second inclined region 52B is a region that extends in a direction deflected by a second deflection angle θ21 with respect to the first horizontal axis HX1 when viewed from above.

[0044] As shown in FIG. 10, in the support mechanism 50 of the present embodiment, the first inclined region 51B of the first shaft portion 51 is a region extending in a direction deflected at a first deflection angle θ11 with respect to the first horizontal axis HX1 when viewed in plan, and the second inclined region 52B of the second shaft portion 52 is a region extending in a direction deflected at a second deflection angle θ21 with respect to the first horizontal axis HX1 when viewed in plan. As shown in FIG. 11, the first inclined region 51B is a region extending in a direction inclined at a first inclination angle θ12 with respect to the drive shaft 21 when viewed in side view along the second horizontal axis HX2. Although not shown in the drawings, the second inclined region 52B is a region extending in a direction inclined at a second inclination angle θ22 with respect to the drive shaft 21 when viewed in side view along the second horizontal axis HX2.

[0045] According to the outdoor unit of the present embodiment, the first inclined region 51B and the second inclined region 52B each have a length in a direction parallel to the first horizontal axis HX1 and a length in a direction parallel to the second horizontal axis HX2 when viewed in plan, so the length of the support mechanism 50 can be secured in a well-balanced manner in both the direction parallel to the first horizontal axis HX1 and the direction parallel to the second horizontal axis HX2.

[0046] [Modified Example] In the above description, it is assumed that the first connecting portion 53 connects a pair of first shaft portions 51, and the second connecting portion 54 connects a pair of second shaft portions 52, but other configurations may be adopted. For example, as shown in FIG. 12, an end portion of the first shaft portion 51 attached to the front wall portion 41, which is disposed in the support area SA, and an end portion of the second shaft portion 52 attached to the front wall portion 41, which is disposed in the support area SA, are connected via a third connecting portion 57 extending parallel to the second horizontal axis HX2, and the other end of the first shaft portion 51 attached to the rear wall portion 42 and the other end of the second shaft portion 52 attached to the rear wall portion 42 may be connected via a fourth connecting portion 58 extending parallel to the second horizontal axis HX2.

[0047] The outdoor unit according to the present disclosure described above can be understood, for example, as follows.

[0048] An outdoor unit (100) according to a first aspect of the present disclosure includes: a fan motor (20) that rotates a drive shaft (21) extending in a height direction (HD); a fan (10) attached to the drive shaft and rotating about a rotation axis extending in the height direction; a heat exchanger (30) disposed below the fan; a housing (40) that accommodates the fan motor, the fan, and the heat exchanger, and is formed with an air outlet (45a) located above the fan and air inlets (41a, 43a) for taking in air from the outside toward the air outlet from the heat exchanger; and a support mechanism (50) attached to an attachment position at a first predetermined height in the height direction of the housing and supporting the fan motor at a support position at a second predetermined height above the first predetermined height, wherein the housing includes a first wall portion (41) extending along the height direction, and a second wall portion (42) extending along the height direction and disposed parallel to the first wall portion, the support mechanism includes a pair of first shaft portions (51) each having one end (51a) attached to the attachment position of the first wall portion and the second wall portion and formed to extend toward the support position in a support area (SA) sandwiched between the first wall portion and the second wall portion, and a pair of second shaft portions (52) each having one end (52a) attached to the attachment position of the first wall portion and the second wall portion and formed to extend toward the support position in the support area, the first shaft portion has a first deflection area (51A) extending in a direction deflected at a first deflection angle (θ11) of not less than 30 degrees and not more than 60 degrees in a plan view with respect to a first horizontal axis (HX1) orthogonal to the first wall portion and the second wall portion and passing through the drive shaft, and a first inclined area (51B) extending in a direction inclined at a first inclination angle (θ12) of not less than 30 degrees and not more than 60 degrees with respect to the drive shaft from the first predetermined height to the second predetermined height, and the second shaft portion has a second deflection area (52A) extending in a direction deflected at a second deflection angle (θ21) of not less than 30 degrees and not more than 60 degrees in a plan view with respect to the first horizontal axis (HX1), and a second inclined area (52B) extending in a direction inclined at a second inclination angle (θ22) of not less than 30 degrees and not more than 60 degrees with respect to the drive shaft from the first predetermined height to the second predetermined height.

[0049] According to the outdoor unit of the first aspect of this disclosure, the support mechanism is attached to a mounting position at a first predetermined height of the housing that houses the fan, and supports the fan motor at a support position at a second predetermined height above the first predetermined height. Since sufficient height distance is secured from the support mechanism to the fan, interference noise between the vortex generated when the air blown by the blower passes through the support mechanism and the tip of the fan can be suppressed.

[0050] According to the outdoor unit of the first aspect of this disclosure, a pair of first axial portions, one end of which is attached to the mounting positions of the first wall portion and the second wall portion, and a pair of second axial portions, one end of which is attached to the mounting positions of the first wall portion and the second wall portion, are formed to extend toward the support position of the support region sandwiched between the first wall portion and the second wall portion.

[0051] The first axial portion has a first deflection region that extends in a direction deflected at a first deflection angle of 30 degrees or more and 60 degrees or less in a plan view with respect to a first horizontal axis that is perpendicular to the first and second wall portions and passes through the drive shaft. Therefore, rigidity can be applied in the direction in which the first deflection region extends against vibrations acting on the fan motor in each direction in a horizontal plane perpendicular to the drive shaft. Furthermore, the first axial portion has a first inclined region that extends in a direction inclined at a first inclination angle of 30 degrees or more and 60 degrees or less with respect to the drive shaft from a first predetermined height to a second predetermined height. Therefore, rigidity can be applied in the direction in which the first inclined region extends against vibrations acting on the fan motor in each direction in a vertical plane in which the first inclined region is located.

[0052] The second axial portion has a second deflection region that extends in a direction deflected by a second deflection angle of 30 degrees or more and 60 degrees or less with respect to the first horizontal axis in a plan view. Therefore, rigidity can be applied in the direction in which the second deflection region extends against vibrations acting on the fan motor in each direction in a horizontal plane perpendicular to the drive shaft. Furthermore, the second axial portion has a second inclined region that extends in a direction inclined by a second inclination angle of 30 degrees or more and 60 degrees or less with respect to the drive shaft from a first predetermined height to a second predetermined height. Therefore, rigidity can be applied in the direction in which the second inclined region extends against vibrations acting on the fan motor in each direction in a vertical plane in which the second inclined region is located.

[0053] As described above, the outdoor unit according to the first aspect of this disclosure provides an outdoor unit that can suppress noise by ensuring a sufficient distance from the fan motor support mechanism to the fan, and can also increase the rigidity of the support mechanism. By increasing the rigidity of the support mechanism, resonance with the primary rotation frequency of the fan can be appropriately avoided.

[0054] An outdoor unit according to a second aspect of the present disclosure further comprises the following configuration in the first aspect: The first inclined region is a region that extends in a direction inclined at a first inclination angle with respect to the drive shaft when viewed from the side along a second horizontal axis (HX2) perpendicular to the first horizontal axis, and the second inclined region is a region that extends in a direction inclined at a second inclination angle with respect to the drive shaft when viewed from the side along the second horizontal axis.

[0055] According to the outdoor unit of the second aspect of this disclosure, the first inclined region extends in a direction inclined at a first inclination angle with respect to the drive shaft within a vertical plane parallel to the first horizontal axis, and the second inclined region extends in a direction inclined at a second inclination angle with respect to the drive shaft within a vertical plane parallel to the first horizontal axis. Therefore, the length of the support mechanism when viewed in the direction along the second horizontal axis can be shortened.

[0056] An outdoor unit according to a third aspect of the present disclosure further comprises the following configuration in the first embodiment: The first inclined region is a region extending in a direction inclined at a first inclination angle with respect to the drive shaft when viewed from the side along the first horizontal axis, and the second inclined region is a region extending in a direction inclined at a second inclination angle with respect to the drive shaft when viewed from the side along the first horizontal axis.

[0057] According to the outdoor unit of the third aspect of this disclosure, the first inclined region extends in a direction inclined at a first inclination angle with respect to the drive shaft within a vertical plane parallel to the second horizontal axis, and the second inclined region extends in a direction inclined at a second inclination angle with respect to the drive shaft within a vertical plane parallel to the second horizontal axis, thereby making it possible to shorten the length of the support mechanism when viewed in the direction along the first horizontal axis.

[0058] An outdoor unit according to a fourth aspect of the present disclosure further comprises the following configuration in the first aspect: the first inclined region is a region extending in a direction deflected by a first deflection angle with respect to a first horizontal axis when viewed from above, and the second inclined region is a region extending in a direction deflected by a second deflection angle with respect to the first horizontal axis when viewed from above.

[0059] According to the outdoor unit of the fourth aspect of this disclosure, the first inclined region and the second inclined region have lengths in a direction parallel to the first horizontal axis and a direction parallel to the second horizontal axis when viewed from above, respectively, so that the length of the support mechanism can be balanced in both the direction parallel to the first horizontal axis and the direction parallel to the second horizontal axis.

[0060] An outdoor unit according to a fifth aspect of the present disclosure further comprises the following configuration in the first aspect: the other ends of a pair of first axial portions are connected via a first connecting portion (53) extending parallel to the first horizontal axis, and the other ends of a pair of second axial portions are connected via a second connecting portion (54) extending parallel to the first horizontal axis.

[0061] According to the fifth aspect of the present disclosure, since the other ends of a pair of first axial parts are connected via a first connecting part, the rigidity of the axial structure including the pair of first axial parts and the first connecting part can be increased. Similarly, since the other ends of a pair of second axial parts are connected via a second connecting part, the rigidity of the axial structure including the pair of second axial parts and the second connecting part can be increased.

[0062] An outdoor unit according to a sixth aspect of the present disclosure further comprises the following configuration in the first embodiment: the end of the first axial portion attached to the first wall portion and the end of the second axial portion attached to the first wall portion and the end of the second axial portion attached to the first wall portion and the end of the second axial portion attached to the first wall portion and the end of the second axial portion attached to the second wall portion are connected via a third connecting portion extending parallel to the second horizontal axis; and the other end of the first axial portion attached to the second wall portion and the other end of the second axial portion attached to the second wall portion are connected via a fourth connecting portion extending parallel to the second horizontal axis.

[0063] According to the outdoor unit of the sixth aspect of this disclosure, the other end of the first axial part attached to the first wall and the other end of the second axial part are connected via a third connecting part, thereby increasing the rigidity of the axial structure including the first axial part, the second axial part and the third connecting part. Similarly, the other end of the first axial part attached to the second wall and the other end of the second axial part are connected via a fourth connecting part, thereby increasing the rigidity of the axial structure including the first axial part, the second axial part and the fourth connecting part.

[0064] 10 Fan 20 Fan motor 21 Drive shaft 30 Heat exchanger 40 Housing 41 Front wall (first wall) 41a Intake port 42 Rear wall (second wall) 43, 44 Side wall 43a Intake port 45 Top surface 45a Outlet port 50 Support mechanism 51 First axial part 51A First deflection region 51B First inclined region 51C First connecting region 51a, 52a One end 52 Second axial part 52A Second deflection region 52B Second inclined region 52C Second connecting region 53 First connecting part 54 Second connecting part 55 First support part 56 Second support part 100 Outdoor unit B Fastening bolt H1 First predetermined height H2 Second predetermined height HD Height direction HX1 First horizontal axis HX2 Second horizontal axis RX Rotation axis S Ground plane SA Support area θ11 First deflection angle θ12 First tilt angle θ21 Second deflection angle θ22 Second tilt angle

Claims

1. A fan motor that rotates a drive shaft extending in the height direction; a fan attached to the drive shaft and rotating about a rotation axis extending in the height direction; a heat exchanger positioned below the fan; a housing that houses the fan motor, the fan, and the heat exchanger and has an outlet located above the fan and an intake port for taking in air from the outside toward the outlet from the heat exchanger; a support mechanism attached to the housing at a first predetermined height mounting position in the height direction and supporting the fan motor at a second predetermined height support position above the first predetermined height; the housing has a first wall portion extending along the height direction and a second wall portion extending along the height direction and positioned parallel to the first wall portion; the support mechanism has a pair of first axial portions, one end of which is attached to the mounting positions of the first wall portion and the second wall portion and which are formed to extend toward the support position in a support region sandwiched between the first wall portion and the second wall portion; An outdoor unit having a pair of second axial portions, one end of which is attached to the mounting positions of the first wall portion and the second wall portion and which are formed to extend toward the support positions of the support area, wherein the first axial portion has a first deflection region extending in a direction deflected by a first deflection angle of 30 degrees or more and 60 degrees or less in a plan view with respect to a first horizontal axis perpendicular to the first wall portion and the second wall portion and passing through the drive shaft, and a first inclined region extending in a direction inclined by a first inclination angle of 30 degrees or more and 60 degrees or less with respect to the drive shaft from a first predetermined height to a second predetermined height, and the second axial portion has a second deflection region extending in a direction deflected by a second deflection angle of 30 degrees or more and 60 degrees or less in a plan view with respect to the first horizontal axis, and a second inclined region extending in a direction inclined by a second inclination angle of 30 degrees or more and 60 degrees or less with respect to the drive shaft from a first predetermined height to a second predetermined height.

2. The outdoor unit according to claim 1, wherein the first inclined region is a region that extends in a direction inclined at a first inclination angle with respect to the drive shaft when viewed from the side along a second horizontal axis perpendicular to the first horizontal axis, and the second inclined region is a region that extends in a direction inclined at a second inclination angle with respect to the drive shaft when viewed from the side along the second horizontal axis.

3. The outdoor unit according to claim 1, wherein the first inclined region is a region extending in a direction inclined at a first inclination angle with respect to the drive shaft when viewed from the side along the first horizontal axis, and the second inclined region is a region extending in a direction inclined at a second inclination angle with respect to the drive shaft when viewed from the side along the first horizontal axis.

4. The outdoor unit according to claim 1, wherein the first inclined region is a region that extends in a direction deflected by a first deflection angle with respect to the first horizontal axis when viewed from above, and the second inclined region is a region that extends in a direction deflected by a second deflection angle with respect to the first horizontal axis when viewed from above.

5. The outdoor unit according to claim 1, wherein the other ends of the pair of first axial portions are connected via a first connecting portion extending parallel to the first horizontal axis, and the other ends of the pair of second axial portions are connected via a second connecting portion extending parallel to the first horizontal axis.

6. The outdoor unit according to claim 1, wherein the end of the first axial portion attached to the first wall portion and the end of the second axial portion attached to the first wall portion and the end of the second axial portion attached to the first wall portion and the end of the second axial portion attached to the first wall portion and the end of the second axial portion attached to the second wall portion are connected via a third connecting portion that extends parallel to a second horizontal axis perpendicular to the first horizontal axis, and the other end of the first axial portion attached to the second wall portion and the other end of the second axial portion attached to the second wall portion are connected via a fourth connecting portion that extends parallel to the second horizontal axis.

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