Outdoor unit and refrigeration cycle device

Abstract

The outdoor unit includes: a pair of pillar members; and a motor support plate which is fixed to the pillar members at pillar fixing portions respectively provided at end portions in the left-right direction and supports the fan motor between the pair of pillar members, the motor support plate having a first plate portion extending along a plane orthogonal to the front-back direction, and a second plate portion extending along a plane orthogonal to the front-back direction. The first plate part is provided with a motor insertion hole in the inner side of which the fan motor is arranged, a plurality of motor fixing parts which are arranged along the inner edge of the motor insertion hole and are used for fixing the fan motor, and a convex part which protrudes towards one side in the front-back direction. The protruding portion includes an annular protruding portion extending along an inner edge of the motor insertion hole and configured with the motor fixing portion, and a reinforcing protruding portion extending from the annular protruding portion toward the pillar fixing portion, and a first imaginary line and a second imaginary line extending in different directions from each other from the motor fixing portion toward the pillar fixing portion when viewed from a front-back direction. The side surface of the reinforcing protrusion has a first side surface extending along a first imaginary line and a second side surface extending along a second imaginary line.

Description

Technical Field

[0001] The present disclosure relates to an outdoor unit and a refrigeration cycle device. Background Art

[0002] The outdoor unit of the refrigeration cycle device includes a fan motor and a fan connected to the fan motor. In addition, Patent Document 1 discloses a motor support stand that supports the fan motor inside the outdoor unit.

[0003] Patent Document 1: Japanese Patent Application Publication No. 2020-085429

[0004] The motor support supports the fan motor from the rear. If the rigidity of the motor support is insufficient, noise may be generated due to the vibration of the motor. However, if the motor support is enlarged to increase the rigidity, the air flow path may be narrowed due to the motor support, thereby increasing the ventilation resistance inside the outdoor unit. Summary of the invention

[0005] In view of the above circumstances, one object of the present disclosure is to provide an outdoor unit capable of suppressing an increase in ventilation resistance, firmly supporting a fan motor, and suppressing noise, and a refrigeration cycle device including such an outdoor unit.

[0006] One aspect of the outdoor unit disclosed herein is an outdoor unit of a refrigeration cycle device, comprising: a fan motor having a rotating shaft centered on a rotating axis extending in a front-rear direction; a wing portion fixed to the rotating shaft; a pair of support members extending in a vertical direction and arranged in a left-right direction; and a motor support plate fixed to the support members at support fixing portions respectively provided at ends in the left-right direction and supporting the fan motor between the pair of support members, the motor support plate having: a first plate portion extending along a plane orthogonal to the front-rear direction, the first plate portion being provided with: a motor insertion hole, on the inner side of which the fan motor is arranged; and a plurality of A motor fixing portion, which is arranged along the inner edge of the motor insertion hole and is used to fix the fan motor; and a convex portion, which protrudes to one side in the front-to-back direction, and the convex portion has: an annular convex portion, which extends along the inner edge of the motor insertion hole and configures the motor fixing portion; and a reinforcing convex portion, which extends from the annular convex portion toward the pillar fixing portion, and when viewed from the front-to-back direction, assuming a first imaginary line and a second imaginary line extending from the motor fixing portion toward the pillar fixing portion in different directions, the side surface of the reinforcing convex portion has: a first side surface, which extends along the first imaginary line; and a second side surface, which extends along the second imaginary line.

[0007] One aspect of a refrigeration cycle device of the present disclosure includes the outdoor unit described above and a circulation path portion through which a refrigerant flows, wherein the outdoor unit includes a heat exchanger connected to the circulation path portion and cooled by the air-sending fan.

[0008] According to the present disclosure, in the outdoor unit of the refrigeration cycle device, it is possible to suppress an increase in ventilation resistance, firmly support the fan motor, and suppress noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram showing a schematic structure of a refrigeration cycle device according to an embodiment.

[0010] Figure 2 It is a perspective view showing an outdoor unit according to the embodiment.

[0011] Figure 3 It is along Figure 2 A cross-sectional view of the outdoor unit of line III-III.

[0012] Figure 4 It is a perspective view of a fan motor and a motor support stand that supports the fan motor according to the embodiment.

[0013] Figure 5 It is a front view of the motor support base in the embodiment.

[0014] Figure 6 This is a perspective view of the motor support plate according to the embodiment as seen from the oblique front.

[0015] Figure 7 This is a perspective view of the motor support plate according to the embodiment as seen from obliquely behind.

[0016] Figure 8 It is a cross-sectional view of the motor support plate in the embodiment.

[0017] Fig. 9 It is a front view of a motor support plate of a modified example. DETAILED DESCRIPTION

[0018] Hereinafter, the embodiments of the present disclosure will be described with reference to the accompanying drawings. In addition, the scope of the present disclosure is not limited to the following embodiments, and any changes can be made within the scope of the technical concept of the present disclosure. In addition, in the following drawings, in order to facilitate the understanding of each structure, the scale and quantity in each structure are sometimes different from the scale and quantity in the actual structure.

[0019] In addition, the X-axis, Y-axis and Z-axis are appropriately shown in the accompanying drawings. The X-axis represents the front-to-back direction of the outdoor unit of the following embodiment. The Y-axis represents the width direction of the outdoor unit orthogonal to the front-to-back direction. The Z-axis represents the vertical direction. The front-to-back direction, the width direction and the vertical direction are mutually orthogonal directions. The side (+X side) to which the arrow of the X-axis in the front-to-back direction points is the front side of the outdoor unit, and the side (-X side) opposite to the side to which the arrow of the X-axis in the front-to-back direction points is the rear side of the outdoor unit. The width direction is the left-right direction of the outdoor unit. The left-to-right direction is the left-to-right direction when observing the outdoor unit of the following embodiment from the front side (+X side). That is, the side (+Y side) to which the arrow of the Y-axis in the left-to-right direction points is set as the right side, and the side (-Y side) opposite to the side to which the arrow of the Y-axis in the left-to-right direction points is set as the left side. The side (+Z side) to which the arrow of the Z-axis in the vertical direction points is the upper side, and the side (-Z side) opposite to the side to which the arrow of the Z-axis in the vertical direction points is the lower side. Furthermore, in this specification, a surface of each part facing forward may be simply referred to as a front surface, and a surface facing backward may be referred to as a rear surface.

[0020] Figure 1 1 is a schematic diagram showing a schematic structure of a refrigeration cycle device 100 in an embodiment. In the embodiment, the refrigeration cycle device 100 is an air conditioner. Figure 1 As shown, the refrigeration cycle device 100 includes an outdoor unit 10, an indoor unit 20, and a circulation path portion 18. The outdoor unit 10 is arranged outdoors. The indoor unit 20 is arranged indoors. The outdoor unit 10 and the indoor unit 20 are connected to each other via the circulation path portion 18 through which the refrigerant 19 circulates.

[0021] The refrigeration cycle device 100 can adjust the temperature of the indoor air by exchanging heat between the refrigerant 19 flowing in the circulation path portion 18 and the indoor air in the room where the indoor unit 20 is arranged. As the refrigerant 19, for example, a fluorine-based refrigerant or a hydrocarbon-based refrigerant with low global warming potential (GWP) is cited.

[0022] The outdoor unit 10 includes a casing 11, a compressor 12, a heat exchanger 13, a flow regulating valve 14, a blower fan 15, a four-way valve 16, and a controller 17. The casing 11 contains the compressor 12, the heat exchanger 13, the flow regulating valve 14, the blower fan 15, the four-way valve 16, and the controller 17.

[0023] The compressor 12, the heat exchanger 13, the flow regulating valve 14, and the four-way valve 16 are provided in a portion of the circulation path portion 18 located inside the housing 11. The compressor 12, the heat exchanger 13, the flow regulating valve 14, and the four-way valve 16 are connected by a portion of the circulation path portion 18 located inside the housing 11.

[0024] The four-way valve 16 is provided in a portion of the circulation path portion 18 connected to the discharge side of the compressor 12. The four-way valve 16 can reverse the direction of the refrigerant 19 flowing in the circulation path portion 18 by switching a portion of the path of the circulation path portion 18. Figure 1 In the case of the path shown by the solid line in the four-way valve 16, the refrigerant 19 flows along the circulation path portion 18. Figure 1 On the other hand, the path connected by the four-way valve 16 is Figure 1 In the case of the path shown by the dotted line in the four-way valve 16, the refrigerant 19 flows along the circulation path portion 18. Figure 1 The flow is in the direction indicated by the dashed arrow.

[0025] The indoor unit 20 includes a housing 21, a heat exchanger 22, an air supply fan 23, and a control device 24. The heat exchanger 22, the air supply fan 23, and the control device 24 are accommodated inside the housing 21. The indoor unit 20 can perform a cooling operation to cool the air in the room where the indoor unit 20 is arranged, and a heating operation to heat the air in the room where the indoor unit 20 is arranged.

[0026] When the indoor unit 20 is in cooling operation, the refrigerant 19 flowing in the circulation path portion 18 flows along the Figure 1 That is, when the indoor unit 20 is in cooling operation, the refrigerant 19 flowing in the circulation path portion 18 circulates in a manner that it passes through the compressor 12, the heat exchanger 13 of the outdoor unit 10, the flow regulating valve 14, and the heat exchanger 22 of the indoor unit 20 in sequence and returns to the compressor 12. In cooling operation, the heat exchanger 13 in the outdoor unit 10 functions as a condenser, and the heat exchanger 22 in the indoor unit 20 functions as an evaporator.

[0027] On the other hand, when the indoor unit 20 is in heating operation, the refrigerant 19 flowing in the circulation path portion 18 is moved along the Figure 1 That is, when the indoor unit 20 is in heating operation, the refrigerant 19 flowing in the circulation path portion 18 circulates in a manner that it passes through the compressor 12, the heat exchanger 22 of the indoor unit 20, the flow regulating valve 14, and the heat exchanger 13 of the outdoor unit 10 in sequence and returns to the compressor 12. In the heating operation, the heat exchanger 13 in the outdoor unit 10 functions as an evaporator, and the heat exchanger 22 in the indoor unit 20 functions as a condenser.

[0028] Next, the outdoor unit 10 will be described in more detail. Figure 2 It is a perspective view showing the outdoor unit 10 . Figure 3 It is along Figure 2 2 is a cross-sectional view of the outdoor unit 10 taken along line III-III.

[0029] like Figure 2 As shown, the housing 11 of the outdoor unit 10 is substantially in the shape of a rectangular parallelepiped box. Figure 3 As shown, the housing 11 includes a front panel 11a covering the interior space of the housing 11 from the front, a back panel 11d covering from the rear, a top panel 11t covering from the upper side, and a bottom panel 11c covering from the lower side.

[0030] A fan grill 11G is attached to the front panel 11a. The fan grill 11G covers an opening 11b provided in the front panel 11a. The opening 11b penetrates the front panel 11a in the front-rear direction (X-axis direction) and opens at the front side. The opening 11b is a substantially circular hole in a plan view.

[0031] like Figure 3 As shown, a fan room 11e is provided inside the housing 11 to accommodate the heat exchanger 13, the air supply fan 15, and the motor support 30. Although not shown in the figure, a machine room is provided inside the housing 11 to accommodate the compressor 12 and the control unit 17. The fan room 11e and the machine room are divided by a partition member.

[0032] The air supply fan 15 is located on the front side (+X side) of the heat exchanger 13. The heat exchanger 13 is connected to a circulation path section 18 (see Figure 1 The refrigerant flows inside the heat exchanger 13. The heat exchanger 13 is cooled by the air supply fan 15.

[0033] The air-sending fan 15 includes a fan motor 60 having a rotating shaft 61 and a rotary blade 15b fixed to the rotating shaft 61. The rotating axis J extends in the front-rear direction.

[0034] The rotary blade 15b is rotated around the rotation axis J by the fan motor 60. The rotary blade 15b is arranged to face the opening 11b inside the housing 11. When the rotary blade 15b rotates, air is sucked into the housing 11 from the air inlet 11f provided on the back panel 11d of the housing 11. The air sucked into the housing 11 by the rotary blade 15b passes through the heat exchanger 13 and the rotary blade 15b, and is discharged to the front side of the housing 11 from the opening 11b.

[0035] Figure 4 It is a perspective view of the fan motor 60 and the motor support stand 30 that supports the fan motor 60 .

[0036] The fan motor 60 includes a motor body 62 having a substantially cylindrical shape, a rotating shaft 61 extending forward from the motor body 62 with the rotating axis J as the center, and a plurality of (four in the present embodiment) mounting portions 63 provided on the outer periphery of the motor body 62. The plurality of mounting portions 63 are arranged at equal intervals in the circumferential direction of the rotating axis J. A through hole is provided in the mounting portion 63 for inserting a motor fixing screw 73. The fan motor 60 is fixed to the motor support stand 30 at the mounting portion 63.

[0037] like Figure 3 As shown, the fan motor 60 is fixed to the housing 11 via the motor support 30. The motor support 30 is located at the rear side of the fan motor 60. The motor support 30 is located inside the housing 11.

[0038] like Figure 4 As shown, the motor support stand 30 includes a motor support plate 40, a lower base member 33, an upper base member 32, and a pair of support members 31. That is, the outdoor unit 10 includes a motor support plate 40, a lower base member 33, an upper base member 32, and a pair of support members 31.

[0039] The lower base member 33 is a member that fixes the lower ends of the pair of support members 31 and is fixed to the bottom surface (bottom plate 11 c ) of the housing 11 . The upper base member 32 is a member that fixes the upper ends of the pair of support members 31 and is fixed to the housing 11 .

[0040] The support member 31 is a columnar member having a substantially C-shaped cross section. The pair of support members 31 extend in the vertical direction and are arranged in the left-right direction. The pair of support members 31 are arranged behind the fan motor 60. When the fan motor 60 is viewed from the front, one of the pair of support members 31 is located on the left side of the rotating shaft 61, and the other is located on the right side of the rotating shaft 61. The pair of support members 31 are of the same shape.

[0041] The motor support plate 40 is a plate-shaped member having a substantially quadrilateral shape when the fan motor 60 is viewed from the front. The motor support plate 40 has a bilaterally symmetrical shape. The motor support plate 40 is fixed across a pair of support members 31 arranged in a row in the left-right direction. In addition, the fan motor 60 is fixed to the motor support plate 40. That is, the motor support plate 40 holds the fan motor 60 between the pair of support members 31.

[0042] Figure 5 It is a partial front view of the fan motor 60 and the motor support stand 30 . Figure 6 This is a perspective view of the motor support plate 40 as seen from the oblique front. Figure 7 This is a perspective view of the motor support plate 40 as seen from the oblique rear. Figure 8 It is a cross-sectional view of the motor support plate 40 .

[0043] like Figure 6 As shown in FIG. 1 , the motor support plate 40 includes a first plate portion 41 located in the center in the left-right direction, a second plate portion 44 provided at the left-right ends of the first plate portion 41, and a plurality of bent plate portions 45, 46, 47, 48, 49 for reinforcing the first plate portion 41 and the second plate portion 44. The motor support plate 40 is formed by stamping a metal plate. That is, the first plate portion 41, the second plate portion 44, and the plurality of bent plate portions 45, 46, 47, 48, 49 are each formed by bending a single plate.

[0044] The first plate portion 41 extends along a plane orthogonal to the front-to-back direction with the plate thickness direction being the front-to-back direction. An arc-shaped edge portion 41a and a pair of linear edge portions 41b are provided at the upper end edge and the lower end edge of the first plate portion 41, respectively. The arc-shaped edge portion 41a extends in an arc shape with the rotation axis J as the center. The pair of linear edge portions 41b are arranged on the left and right sides of the arc-shaped edge portion 41a and extend linearly in the left-right direction.

[0045] The pair of second plate portions 44 are connected to the left-right ends of the first plate portion 41, respectively. The second plate portion 44 is rectangular. The second plate portion 44 extends along a plane perpendicular to the left-right direction, with the left-right direction as the plate thickness direction. The pair of second plate portions 44 are formed by bending backward from the left-right ends of the first plate portion 41, respectively. The first plate portion 41 and the second plate portion 44 are perpendicular to each other.

[0046] The bent plate portions 45 , 46 , 47 , 48 , and 49 of the motor support plate 40 are classified into a first bent plate portion 45 , a second bent plate portion 46 , a third bent plate portion 47 , a fourth bent plate portion (bent plate portion) 48 , and a fifth bent plate portion (bent plate portion) 49 .

[0047] The first bent plate portion 45 and the second bent plate portion 46 are provided at the upper edge and the lower edge of the first plate portion 41. A first bent plate portion 45 and two second bent plate portions 46 are provided at the upper edge and the lower edge of the first plate portion 41, respectively. The two second bent plate portions 46 are arranged on the left and right sides of the first bent plate portion 45. The first bent plate portion 45 and the second bent plate portion 46 are formed by bending forward relative to the first plate portion 41. The first bent plate portion 45 and the second bent plate portion 46 are orthogonal to the first plate portion 41. The first bent plate portion 45 is provided at the arc-shaped edge portion 41a of the first plate portion 41. Therefore, the first plate portion 41 is curved in an arc shape with the rotation axis J as the center. In addition, the second bent plate portion 46 is provided at the straight edge portion 41b of the first plate portion 41. The second bent plate portion 46 extends in a straight line in the left-right direction. The first bent plate portion 45 and the second bent plate portion 46 reinforce the first plate portion 41.

[0048] The third bent plate portion 47 is provided at the upper edge and the lower edge of the second plate portion 44. The third bent plate portion 47 is formed by bending laterally relative to the first plate portion 41. The third bent plate portion 47 is orthogonal to the second plate portion 44. The third bent plate portion 47 extends in a straight line in the front-to-back direction. The third bent plate portion 47 is connected to the second bent plate portion 46. The third bent plate portion 47 reinforces the second plate portion 44. In addition, the second bent plate portion 46 and the third bent plate portion 47 are connected to each other. Therefore, the second bent plate portion 46 and the third bent plate portion 47 increase the rigidity of the boundary portion between the first plate portion 41 and the second plate portion 44.

[0049] The fourth bent plate portion 48 and the fifth bent plate portion 49 are connected to the inner edge 41e of the motor insertion hole 41h of the first plate portion 41. Two fourth bent plate portions 48 and two fifth bent plate portions 49 are provided at the inner edge 41e of the motor insertion hole 41h. The fourth bent plate portion 48 and the fifth bent plate portion 49 are curved in an arc shape with the rotation axis J as the center. The two fourth bent plate portions 48 are respectively arranged above and below the rotation axis J. In addition, the two fifth bent plate portions 49 are respectively arranged on the left and right of the rotation axis J. Therefore, the fourth bent plate portion 48 and the fifth bent plate portion 49 are alternately arranged in the circumferential direction with the rotation axis J as the center. The fourth bent plate portion 48 is formed by bending forward relative to the first plate portion 41. On the other hand, the first bent plate portion 45 and the second bent plate portion 46 are orthogonal to the first plate portion 41. The first bent plate portion 45 and the second bent plate portion 46 are orthogonal to the first plate portion 41.

[0050] According to the present embodiment, the motor support plate 40 includes a fourth bent plate portion 48 and a fifth bent plate portion 49 bent in the front-rear direction from the inner edge 41e of the motor insertion hole 41h. The fourth bent plate portion 48 and the fifth bent plate portion 49 reinforce the first plate portion 41 around the motor insertion hole 41h of the motor support plate 40. According to the present embodiment, the rigidity of the motor support plate 40 can be increased without increasing the projection area of ​​the motor support plate 40 in the front-rear direction, so that the motor support plate 40 can stably support the fan motor 60.

[0051] like Figure 8 As shown, the first bent plate portion 45 is bent forward relative to the first plate portion 41, and the fourth bent plate portion 48 is bent backward relative to the first plate portion 41. Therefore, the motor support plate 40 is bent in different directions relative to the first plate portion 41 in the upper and lower regions of the motor insertion hole 41h to be reinforced.

[0052] like Figure 6 As shown, the second plate portion 44 is bent backward relative to the first plate portion 41, and the fifth bent plate portion 49 is bent forward relative to the first plate portion 41. Therefore, the motor support plate 40 is bent in different directions relative to the first plate portion 41 in the right and left regions of the motor insertion hole 41h to be reinforced.

[0053] The upper edge 49a of the fifth bent plate portion 49 extends linearly in the front-rear direction. The upper edge 49a of the two fifth bent plate portions 49 of this embodiment are aligned with each other in the vertical position. Figure 5 As shown, the mounting portion 63 of the fan motor 60 is respectively arranged on the upper side of the upper end edge 49a of the two fifth bent plate portions 49. The fan motor 60 of this embodiment is installed on the motor support plate 40 in a state where the rotation axis J is oriented in the horizontal direction. The fan motor 60 is heavy, so it is difficult to perform the installation operation while holding the fan motor 60 in the air. According to this embodiment, the mounting portion 63 of the fan motor 60 can be mounted on the upper end edge 49a of the fifth bent plate portion 49. Therefore, the operator can temporarily hold the fan motor 60 on the motor support plate 40 during the installation operation.

[0054] The motor support plate 40 is fixed to the support member 31 at the support fixing portion 42. The support fixing portion 42 is composed of the end portion of the first plate portion 41 in the left-right direction and the second plate portion 44 connected to the end portion. That is, the motor support plate 40 has the support fixing portions 42 respectively provided at the end portions in the left-right direction. The pair of support fixing portions 42 are mutually symmetrical in shape. In addition, in this specification, the support fixing portion 42 refers to the entire portion of the motor support plate 40 that contacts and is fixed to the support member 31 in a state where a surface pressure is applied between the support member 31.

[0055] The support post fixing portion 42 has two first fixing portions 42a and two second fixing portions 42b. The first fixing portions 42a and the second fixing portions 42b are screw-fixed to the support member 31. That is, the support post fixing portion 42 has a plurality of fixing portions 42a and 42b that are screw-fixed to the support member 31.

[0056] The first fixing portion 42a is provided on the second plate portion 44. The first fixing portion 42a has a first hole 42ah penetrating the second plate portion 44. On the other hand, the second fixing portion 42b is provided on the first plate portion 41. The second fixing portion 42b has a second hole 42bh penetrating the first plate portion 41. That is, a part of the plurality of fixing portions 42a and 42b is provided on the first plate portion 41, and another part is provided on the second plate portion 44.

[0057] like Figure 5As shown, the first fixing portion 42a is fixed to the support member 31 by the first screw 71, and the second fixing portion 42b is fixed to the support member 31 by the second screw 72. As described above, the second plate portion 44 provided with the first fixing portion 42a and the first plate portion 41 provided with the second fixing portion 42b are orthogonal to each other. Therefore, the support fixing portion 42 is fixed to the support member 31 from directions orthogonal to each other. According to this embodiment, the fixing strength can be improved in the support fixing portion 42. Moreover, according to this embodiment, even if vibrations in various directions are applied to the support fixing portion 42 accompanying the driving of the fan motor 60, the loosening of the first screw 71 and the second screw 72 can be suppressed. Thus, the reliability of the fixing of the motor support plate 40 and the support member 31 can be improved.

[0058] like Figure 6 As shown, a motor insertion hole 41h, a plurality of (four in this embodiment) motor fixing portions 43, and a convex portion 50 are provided in the first plate portion 41. The motor insertion hole 41h penetrates the first plate portion 41 in the front-to-back direction. The motor insertion hole 41h is located between a pair of support members 31. The motor insertion hole 41h of this embodiment is a roughly circular shape centered on the rotation axis J. However, the top view shape of the motor insertion hole 41h is not limited to a circle, and may also be other shapes such as a polygon.

[0059] The plurality of motor fixing parts 43 are arranged along the inner edge 41e of the motor insertion hole 41h. The plurality of motor fixing parts 43 are arranged at equal intervals around the rotation axis J. The fan motor 60 is fixed to the motor fixing part 43. In the present embodiment, the four motor fixing parts 43 are respectively arranged at the upper right, lower right, upper left, and lower left relative to the rotation axis J. A screw hole 43h is provided in each motor fixing part 43.

[0060] like Figure 5 As shown, the fan motor 60 is arranged inside the motor insertion hole 41h. In addition, the four mounting portions 63 provided on the fan motor 60 are arranged in front of the first plate portion 41. The mounting portion 63 contacts the motor fixing portion 43 from the front. The motor fixing screw 73 is fastened to the screw hole 43h of the motor fixing portion 43 through the through hole of the mounting portion 63 (see Figure 6 ), so that the fan motor 60 is fixed to the motor support plate 40. When the motor fixing screw 73 is tightened, the rear surface of the mounting portion 63 and the front surface of the motor support plate 40 contact each other and are given surface pressure, and the relative movement is restricted by friction. In addition, in this specification, the motor fixing portion 43 refers to the area on the front surface of the first plate portion 41 that contacts the mounting portion 63 of the fan motor 60 and is given surface pressure.

[0061] The convex portion 50 is a portion protruding forward in the first plate portion 41. The convex portion 50 of the present embodiment is formed by drawing and has a shape that gently bulges forward. In addition, in the present embodiment, the convex portion 50 protrudes forward in the first plate portion 41, but the convex portion 50 may also protrude backward. That is, the convex portion 50 may protrude to one side in the front-rear direction.

[0062] The convex portion 50 has a top surface 50b and a side surface 50a. The top surface 50b is located at the front end of the protruding direction of the convex portion 50. The top surface 50b extends along a plane perpendicular to the front-back direction. The side surface 50a connects the front surface of the first plate portion 41 on the root side of the convex portion 50 and the top surface 50b. The side surface 50a is provided over the entire circumference of the outer edge of the top surface 50b. The side surface 50a is inclined toward the protruding direction (front) of the convex portion 50 relative to the plane perpendicular to the front-back direction.

[0063] The convex portion 50 has an annular convex portion 51 and a pair of reinforcing convex portions 52. The annular convex portion 51 and the reinforcing convex portion 52 are respectively a part of the convex portion 50. The annular convex portion 51 and the reinforcing convex portion 52 are connected to each other. In the present embodiment, the protruding height of the annular convex portion 51 and the protruding height of the reinforcing convex portion 52 are equal to each other. However, the protruding heights of the annular convex portion 51 and the reinforcing convex portion 52 may also be different from each other. One of the pair of reinforcing convex portions 52 is located on the right side of the annular convex portion 51, and the other is located on the left side of the annular convex portion 51. The pair of reinforcing convex portions 52 are symmetrical in shape with respect to the rotation axis J.

[0064] The annular projection 51 extends in an annular shape along the inner edge 41e of the motor insertion hole 41h. As described above, the motor insertion hole 41h of this embodiment is substantially circular centered on the rotation axis J. Therefore, the annular projection 51 extends in an annular shape centered on the rotation axis J.

[0065] In the present specification, "annular" refers to a shape formed by a continuous ring, and is a concept that includes a case where the shape in plan view is not necessarily circular. Therefore, the shape in plan view of the annular convex portion 51 may not be circular.

[0066] The motor fixing portion 43 is arranged on the annular protrusion 51. Therefore, the motor fixing portion 43 is arranged on the top surface 50b of the annular protrusion 51 in the front of the first plate portion 41. According to the present embodiment, the fan motor 60 is fixed to the annular protrusion 51 provided along the inner edge 41e of the motor insertion hole 41h of the motor support plate 40. The motor support plate 40 can improve the cross-sectional inertia moment and improve the rigidity by providing the annular protrusion 51 around the motor insertion hole 41h. By fixing the fan motor 60 to the top surface 50b of the protrusion 50, the resonance of the motor support plate 40 relative to the vibration of the fan motor 60 can be suppressed, and the noise accompanying the driving of the outdoor unit 10 can be suppressed. In addition, the propagation of the vibration of the fan motor 60 to each part of the outdoor unit 10 can be restricted, and the loosening of the screws of each part of the outdoor unit 10 can be suppressed. As a result, it is possible to provide an outdoor unit 10 with high reliability.

[0067] The dimension D1 of the annular protrusion 51 of the present embodiment is smaller than the dimension D2 of the support fixing portion 42 in the vertical direction. According to the motor support plate 40 of the present embodiment, the rigidity of the motor support plate 40 along the inner edge 41e of the motor insertion hole 41h is sufficiently improved by providing the annular protrusion 51. Therefore, even if the dimension D2 of the support fixing portion 42 in the vertical direction is reduced, the motor support plate 40 can firmly support the fan motor 60 between the support fixing portion 42 and the fan motor 60. According to the present embodiment, by making the dimension D2 of the support fixing portion 42 in the vertical direction smaller than the dimension D1 of the annular protrusion 51 in the vertical direction, the projection area of ​​the motor support plate 40 in the front-rear direction can be reduced. As a result, it is possible to suppress the narrowing of the air supply path of the air supply fan 15 by the motor support plate 40, and suppress the increase of the ventilation resistance in the outdoor unit 10.

[0068] A pair of reinforcing protrusions 52 extend from the annular protrusion 51 to the left and right pillar fixing portions 42, respectively. The reinforcing protrusion 52 includes a central protrusion 54 located in the center in the vertical direction, and side protrusions 53 located above and below the central protrusion 54, respectively. The pair of side protrusions 53 are symmetrical in shape with respect to each other in the vertical direction. In addition, the central protrusion 54 is symmetrical in shape with respect to the rotation axis J.

[0069] The side surface 50 a of the reinforcing protrusion 52 includes a first side surface 53 a , a second side surface 54 a , a third side surface 53 b , a fourth side surface 53 c , a fifth side surface 54 b , and a sixth side surface 52 a .

[0070] The first side surface 53a, the third side surface 53b, and the fourth side surface 53c constitute the side surface 50a of the lateral protrusion 53. The first side surface 53a and the third side surface 53b extend in a straight line in the left-right direction. The first side surface 53a and the third side surface 53b are arranged in a vertical direction. The first side surface 53a is arranged on a side farther from the central protrusion 54 than the third side surface 53b in the vertical direction. The fourth side surface 53c is arranged at the end of the lateral protrusion 53 in the left-right direction. The fourth side surface 53c extends in an arc shape and connects the first side surface 53a and the third side surface 53b.

[0071] The fifth side surface 54b and the pair of second side surfaces 54a constitute the side surface 50a of the central convex portion 54. The pair of second side surfaces 54a extend linearly in a direction approaching each other in the vertical direction as they move away from the rotation axis J in the left-right direction. The fifth side surface 54b connects the pair of second side surfaces 54a to each other. The fifth side surface 54b extends linearly in the vertical direction at the central portion, and is curved in an arc shape at the upper end and the lower end and is smoothly connected to the second side surface 54a, respectively.

[0072] The sixth side surface 52a is located between the lateral protrusion 53 and the central protrusion 54. The sixth side surface 52a is curved in an arc shape and smoothly connects the third side surface 53b of the lateral protrusion 53 and the second side surface 54a of the central protrusion 54.

[0073] like Figure 5 As shown, when viewed from the front-to-back direction, a first imaginary line L1 and a second imaginary line L2 are assumed. The first imaginary line L1 and the second imaginary line L2 pass through the motor fixing portion 43, respectively. One first imaginary line L1 and one second imaginary line L2 are assumed for each motor fixing portion 43. The first imaginary line L1 and the second imaginary line L2 extend from the motor fixing portion 43 toward the support fixing portion 42, respectively. In addition, the first imaginary line L1 and the second imaginary line L2 extend in directions different from each other. The first imaginary line L1 of the present embodiment extends in parallel with the left-right direction. On the other hand, the second imaginary line L2 of the present embodiment extends in a direction inclined relative to the left-right direction and the up-down direction.

[0074] As described above, the motor fixing portion 43 of the present embodiment is a region having a certain area provided on the front surface of the first plate portion 41. Therefore, the first imaginary line L1 and the second imaginary line L2 can pass through the region having a certain width.

[0075] In the present embodiment, the first side surface 53a extends along the first imaginary line L1. On the other hand, the second side surface 54a extends along the second imaginary line L2. That is, the reinforcing protrusion 52 has a first side surface 53a along the first imaginary line L1, and a second side surface 54a along the second imaginary line L2 extending in a direction different from the first imaginary line L1.

[0076] If the convex portion 50 is provided on the first plate portion 41 by drawing, the cross-sectional shape becomes a step shape, and the section moment of inertia can be increased, and the rigidity is improved. Therefore, the rigidity of the convex portion 50 is increased in the direction along the side surface 50a. That is, according to the present embodiment, the rigidity of the first plate portion 41 is increased along the first side surface 53a and the second side surface 54a. The first side surface 53a and the second side surface 54a extend linearly in mutually different directions from the motor fixing portion 43 toward the pillar fixing portion 42. The first side surface 53a and the second side surface 54a constitute a reinforcement structure similar to a truss structure connecting the motor fixing portion 43 and the pillar fixing portion 42. As a result, the motor support plate 40 can firmly connect the pillar member 31 and the fan motor 60. As a result, the vibration of the fan motor 60 can be suppressed and the noise of the outdoor unit 10 can be suppressed. In addition, according to the present embodiment, the rigidity of the motor support plate 40 can be increased without enlarging the motor support plate 40. This can suppress the air flow path of the air-sending fan 15 from being narrowed by the motor support plate 40 , and can suppress an increase in ventilation resistance in the outdoor unit 10 .

[0077] In the present embodiment, the first imaginary line L1 passes through the first fixing portion 42a when viewed from the front-back direction. That is, the first fixing portion 42a is disposed on an extension line of the first side surface 53a extending along the first imaginary line L1 when viewed from the front-back direction. Thus, the first side surface 53a can firmly connect the motor fixing portion 43 and the first fixing portion 42a, and improve the rigidity of the motor support plate 40 between the support member 31 and the fan motor 60.

[0078] In addition, in the present embodiment, the case where the first fixing portion 42a is provided on the second plate portion 44 is described. However, the first fixing portion 42a may be arranged on the first plate portion 41 as long as it is arranged on the first imaginary line L1 when viewed from the front-back direction. In addition, in the present embodiment, the case where the first fixing portion 42a is arranged on the extension line of the first side surface 53a is described. However, it may also be formed so that the fourth side surface 53c extends along the first imaginary line L1, and the first fixing portion 42a is arranged on the extension line of the fourth side surface 53c. In this case, the fourth side surface 53c firmly connects the motor fixing portion 43 and the first fixing portion 42a.

[0079] The first imaginary line L1 of the present embodiment extends parallel to the left-right direction. As described above, the support member 31 extends in the vertical direction. Therefore, the first side surface 53a extending along the first imaginary line L1 extends in the direction connecting the first fixing portion 42a and the support fixing portion 42 at the shortest distance. Therefore, the rigidity of the first side surface 53a can be further improved. In addition, by setting the first side surface 53a in the direction connecting the first fixing portion 42a and the support fixing portion 42 at the shortest distance, it is possible to suppress the situation in which the projection area of ​​the motor support plate 40 in the front-rear direction is increased in order to set the first side surface 53a. As a result, it is possible to suppress the increase in ventilation resistance in the outdoor unit 10 and improve the air supply efficiency of the air supply fan 15.

[0080] According to the present embodiment, the second imaginary line L2 passes between the two second fixing portions 42b when viewed from the front-to-back direction. The two second fixing portions 42b of one pillar fixing portion 42 are arranged in the up-down direction. The pillar fixing portion 42 is particularly firmly fixed in the area between the two second fixing portions 42b. According to the present embodiment, the extension line of the second side surface 54a extending along the second imaginary line L2 passes between the two second fixing portions 42b. Thus, the second side surface 54a can firmly connect the area between the motor fixing portion 43 and the second fixing portion 42b, and improve the rigidity of the motor support plate 40 between the pillar component 31 and the fan motor 60.

[0081] Here, the upper one of the plurality of motor fixing parts 43 is referred to as the first motor fixing part 43A, and the lower one is referred to as the second motor fixing part 43B. That is, the plurality of motor fixing parts 43 include the first motor fixing part 43A and the second motor fixing part 43B arranged in a vertical direction.

[0082] The second imaginary line L2 extends from the first motor fixing portion 43A and the second motor fixing portion 43B toward between the two second fixing portions 42b. That is, according to the present embodiment, the second imaginary line L2 extending from the first motor fixing portion 43A and the second imaginary line L2 extending from the second motor fixing portion 43B extend in directions approaching each other in the vertical direction as they move away from the annular convex portion 51 in the left-right direction. In addition, the two second imaginary lines L2 intersect between the pair of second fixing portions 42b.

[0083] The reinforcing protrusion 52 has two second side surfaces 54a extending along two second imaginary lines L2. According to the present embodiment, the extension lines of the two second side surfaces 54a extending from the first motor fixing portion 43A and the second motor fixing portion 43B arranged vertically toward the pillar fixing portion 42 intersect between the two second fixing portions 42b. According to the present embodiment, the two second side surfaces 54a firmly connect the area between the first motor fixing portion 43A and the pillar fixing portion 42, and the area between the second motor fixing portion 43B and the pillar fixing portion 42. Thus, the rigidity of the motor support plate 40 between the pillar component 31 and the fan motor 60 can be improved. In addition, according to the present embodiment, the motor support plate 40 can be firmly fixed to the pillar component 31 without excessively increasing the number of fixing portions 42a and 42b provided in the pillar fixing portion 42. Therefore, the fixing process of the motor support plate 40 and the pillar component 31 in the pillar fixing portion 42 can be simplified.

[0084] <Modification>

[0085] Fig. 9 It is a front view of a motor support plate 140 of a modified example that can be adopted in the outdoor unit 10 of the above-mentioned embodiment. In the description of each modified example described below, the same reference numerals are attached to the same components as those of the embodiment described above, and the description thereof is omitted.

[0086] The motor support plate 140 is fixed to the support member 31 by support fixing portions 142 located at both left and right ends. In this modification, each support fixing portion 142 has two first fixing portions 42a and one second fixing portion 142b. The second fixing portion 142b is provided on the first plate portion 41. The second fixing portion 142b is arranged at the center in the vertical direction of the support fixing portion 142. The second fixing portion 142b is screwed to the support member 31 by a second screw 172.

[0087] In the motor support plate 140, a first imaginary line L1 and a second imaginary line L2 are assumed when viewed from the front-rear direction. The first imaginary line L1 and the second imaginary line L2 pass through the motor fixing portion 43. In addition, the first side surface 53a of the reinforcing protrusion 52 extends along the first imaginary line L1, and the second side surface 54a of the reinforcing protrusion 52 extends along the second imaginary line L2.

[0088] In this modification, the second imaginary line L2 passes through the second fixing portion 142b when viewed from the front-back direction. According to this modification, the two second fixing portions 142b are arranged on the extension line of the second side surface 54a extending along the second imaginary line L2. Thus, the second side surface 54a firmly connects the area between the motor fixing portion 43 and the second fixing portion 142b, and improves the rigidity of the motor support plate 140 between the support member 31 and the fan motor 60.

[0089] The second imaginary line L2 extending from the upper first motor fixing portion 43A and the second imaginary line L2 extending from the lower second motor fixing portion 43B extend in a direction approaching each other in the vertical direction as they move away from the annular convex portion 51 in the left-right direction. In addition, the two second imaginary lines L2 intersect each other at the second fixing portion 142b. The reinforcing convex portion 52 has two second side surfaces 54a extending along the two second imaginary lines L2.

[0090] According to this modification, the two second fixing portions 142b are arranged on the extension lines of the two second side surfaces 54a respectively extending from the first motor fixing portion 43A and the second motor fixing portion 43B arranged in the vertical direction toward the support post fixing portion 142. According to this modification, the two second side surfaces 54a can firmly connect the areas between the first motor fixing portion 43A and the second motor fixing portion 43B and the support post fixing portion 142, and improve the rigidity of the motor support plate 140 between the support post member 31 and the fan motor 60. In addition, according to this modification, the motor support plate 140 can be firmly fixed to the support post member 31 without excessively increasing the second fixing portion 142b of the support post fixing portion 142.

[0091] The refrigeration cycle device including the outdoor unit of the present disclosure may be any device that utilizes a refrigeration cycle in which a refrigerant circulates, and is not limited to an air conditioner. The refrigeration cycle device may also be a heat pump water heater or the like.

[0092] As mentioned above, each structure and each method described in this specification can be combined appropriately within the range which does not contradict each other.

[0093] Description of Reference Numerals

[0094] 10…Outdoor unit; 18…Circulation path portion; 19…Refrigerant; 31…Pillar member; 40, 140…Motor support plate; 41…First plate portion; 41e…Inner edge; 41h…Motor insertion hole; 42, 142…Pillar fixing portion; 42a…First fixing portion (fixing portion); 42b, 142b…Second fixing portion (fixing portion); 43…Motor fixing portion; 43A…First motor fixing portion; 43B…Second motor fixing portion part; 44…second plate portion; 48…fourth bent plate portion (bent plate portion); 49…fifth bent plate portion (bent plate portion); 50…convex portion; 50a…side surface; 51…annular convex portion; 52…reinforcing convex portion; 53a…first side surface; 54a…second side surface; 60…fan motor; 61…rotating shaft; 100…refrigeration cycle device; D1, D2…dimensions; J…rotating axis line; L1…first imaginary line; L2…second imaginary line.

Claims

1. An outdoor unit, which is an outdoor unit of a refrigeration cycle device, characterized in that: have: a fan motor having a rotation shaft centered on a rotation axis extending in the front-rear direction; a wing portion fixed to the rotating shaft; a pair of support members extending in the vertical direction and arranged in the left-right direction; and a motor support plate fixed to the support member at support fixing portions respectively provided at the ends in the left-right direction and supporting the fan motor between a pair of the support members, The motor support plate includes: a first plate portion extending along a plane perpendicular to the front-rear direction; The first plate portion is provided with: A motor insertion hole, on the inner side of which the fan motor is arranged; a plurality of motor fixing portions arranged along the inner edge of the motor insertion hole and for fixing the fan motor; and a convex portion protruding toward one side in the front-rear direction, The convex portion has: an annular protrusion extending along the inner edge of the motor insertion hole and configuring the motor fixing portion; and a reinforcing protrusion extending from the annular protrusion toward the support fixing portion, Assuming a first imaginary line and a second imaginary line extending in different directions from the motor fixing portion toward the support fixing portion when viewed in the front-rear direction, The side surface of the reinforcing convex portion has: a first side surface extending along the first imaginary line; and A second side surface extends along the second imaginary line.

2. The outdoor unit according to claim 1, characterized in that: The support fixing portion comprises: a first fixing portion fixed by a screw to the support member; When viewed from the front-rear direction, the first imaginary line passes through the first fixing portion.

3. The outdoor unit according to claim 2, characterized in that: The first imaginary line extends parallel to the left-right direction.

4. The outdoor unit according to any one of claims 1 to 3, characterized in that: The support fixing portion comprises: two second fixing portions fixed by screws to the support member, When viewed from the front-rear direction, the second imaginary line passes between the two second fixing parts.

5. The outdoor unit according to claim 4, characterized in that: The plurality of motor fixing parts include: a first motor fixing part and a second motor fixing part arranged in parallel along the vertical direction, The second imaginary line extending from the first motor fixing portion and the second imaginary line extending from the second motor fixing portion intersect between the pair of the second fixing portions. The side surface of the reinforcing protrusion has two second side surfaces extending respectively along the two second imaginary lines.

6. The outdoor unit according to any one of claims 1 to 3, characterized in that: The support fixing portion comprises: a second fixing portion fixed by a screw to the support member, The second imaginary line passes through the second fixing portion when viewed in the front-rear direction.

7. The outdoor unit according to any one of claims 1 to 6, characterized in that: The dimension of the annular protrusion in the vertical direction is smaller than the dimension of the support column fixing portion in the vertical direction.

8. The outdoor unit according to any one of claims 1 to 7, characterized in that: The motor support plate has: A first plate portion having the front-rear direction as a plate thickness direction; and second plate portions, which are respectively arranged at the left and right ends of the first plate portion, The support fixing portion comprises: a plurality of fixing portions fixed to the support member by screws, A portion of the plurality of fixing portions is disposed on the first plate portion, and another portion is disposed on the second plate portion.

9. The outdoor unit according to any one of claims 1 to 8, characterized in that: The motor support plate includes a bent plate portion bent from an inner edge of the motor insertion hole toward the front-rear direction.

10. A refrigeration cycle device, characterized in that: have: The outdoor unit according to any one of claims 1 to 9; and A circulation path portion through which the refrigerant flows.

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