WO2023242934A1 - Unité extérieure et dispositif à cycle de réfrigération - Google Patents

Unité extérieure et dispositif à cycle de réfrigération Download PDF

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Publication number
WO2023242934A1
WO2023242934A1 PCT/JP2022/023707 JP2022023707W WO2023242934A1 WO 2023242934 A1 WO2023242934 A1 WO 2023242934A1 JP 2022023707 W JP2022023707 W JP 2022023707W WO 2023242934 A1 WO2023242934 A1 WO 2023242934A1
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WO
WIPO (PCT)
Prior art keywords
motor
plate
fixing
outdoor unit
fixing part
Prior art date
Application number
PCT/JP2022/023707
Other languages
English (en)
Japanese (ja)
Inventor
裕太 一ノ瀬
雄大 仁木
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to AU2022465543A priority Critical patent/AU2022465543A1/en
Priority to PCT/JP2022/023707 priority patent/WO2023242934A1/fr
Priority to JP2024527936A priority patent/JPWO2023242934A1/ja
Publication of WO2023242934A1 publication Critical patent/WO2023242934A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/38—Fan details of outdoor units, e.g. bell-mouth shaped inlets or fan mountings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers

Definitions

  • the present disclosure relates to an outdoor unit and a refrigeration cycle device.
  • the outdoor unit of the refrigeration cycle device includes a fan motor and a fan connected to the fan motor. Further, Patent Document 1 discloses a motor support stand that supports a fan motor inside an outdoor unit.
  • the motor support base supports the fan motor from the rear. If the rigidity of the motor support is insufficient, there is a risk that noise will be generated due to vibrations of the motor. On the other hand, however, if the motor support is made larger in order to increase its rigidity, there is a risk that the motor support will narrow the air flow path and increase ventilation resistance inside the outdoor unit.
  • the present disclosure aims to provide an outdoor unit that can firmly support a fan motor and suppress noise while suppressing an increase in ventilation resistance, and a refrigeration cycle device equipped with such an outdoor unit. be one of the.
  • One aspect of the outdoor unit according to the present disclosure is an outdoor unit of a refrigeration cycle device, and includes a fan motor having a rotating shaft centered on a rotational axis extending in the front-rear direction, and a wing portion fixed to the rotating shaft. a pair of strut members extending in the vertical direction and lined up in the left-right direction; and a motor that is fixed to the strut members at strut fixing portions provided at respective ends in the left-right direction and supports the fan motor between the pair of strut members.
  • a support plate the motor support plate has a first plate portion extending along a plane orthogonal to the front-rear direction, and the first plate portion has a motor insertion portion inside which the fan motor is disposed.
  • a first imaginary line and a second imaginary line extending in different directions from the motor fixing part toward the column fixing part, and a side surface of the reinforcing convex part extends along the first imaginary line. It has one side surface and a second side surface extending along the second imaginary line.
  • One aspect of the refrigeration cycle device includes the above-mentioned outdoor unit and a circulation path section through which a refrigerant flows, and the outdoor unit is connected to the circulation path section and cooled by the blower fan. Has an exchanger.
  • the fan motor in the outdoor unit of a refrigeration cycle device, can be strongly supported and noise can be suppressed while suppressing an increase in ventilation resistance.
  • FIG. 3 is a sectional view of the outdoor unit taken along line III-III in FIG. 2.
  • FIG. 2 is a perspective view of a fan motor and a motor support stand that supports the fan motor according to the embodiment. It is a front view of the motor support stand of embodiment.
  • FIG. 3 is a perspective view of the motor support plate according to the embodiment, as seen diagonally from the front.
  • FIG. 3 is a perspective view of the motor support plate according to the embodiment, as seen diagonally from the rear.
  • It is a sectional view of a motor support plate in an embodiment. It is a front view of the motor support plate of a modification.
  • the drawings appropriately indicate an X axis, a Y axis, and a Z axis.
  • the X-axis indicates the front-rear direction of the outdoor unit in the following embodiments.
  • the Y-axis indicates the width direction of the outdoor unit orthogonal to the front-rear direction.
  • the Z axis indicates the vertical direction.
  • the front-back direction, the width direction, and the vertical direction are directions orthogonal to each other.
  • the side that the X-axis arrow points to (+X side) is the front side of the outdoor unit
  • the side opposite to the side that the X-axis arrow points to (-X side) is the rear side of the outdoor unit. .
  • the width direction is the left and right direction of the outdoor unit.
  • the left-right direction is the left-right direction when the outdoor unit of the following embodiment is viewed from the front side (+X side). That is, in the left-right direction, the side to which the Y-axis arrow points (+Y side) is the right side, and in the left-right direction, the side opposite to the side to which the Y-axis arrow points (-Y side) is the left side.
  • the side to which the Z-axis arrow points (+Z side) is the upper side
  • the side opposite to the side to which the Z-axis arrow points (-Z side) is the lower side.
  • the front facing surface of each part may be simply referred to as the front surface
  • the rear facing surface may be referred to as the rear surface.
  • FIG. 1 is a schematic diagram showing a schematic configuration of a refrigeration cycle device 100 in an embodiment.
  • refrigeration cycle device 100 is an air conditioner.
  • the refrigeration cycle device 100 includes an outdoor unit 10, an indoor unit 20, and a circulation path section 18.
  • the outdoor unit 10 is placed outdoors.
  • the indoor unit 20 is placed indoors.
  • the outdoor unit 10 and the indoor unit 20 are connected to each other by a circulation path section 18 through which a refrigerant 19 circulates.
  • the refrigeration cycle device 100 can adjust the temperature of indoor air by exchanging heat between the refrigerant 19 flowing in the circulation path section 18 and the air in the room where the indoor unit 20 is placed.
  • the refrigerant 19 include a fluorine-based refrigerant that has a low global warming potential (GWP), a hydrocarbon-based refrigerant, and the like.
  • the outdoor unit 10 includes a housing 11, a compressor 12, a heat exchanger 13, a flow rate adjustment valve 14, a blower fan 15, a four-way valve 16, and a control section 17. Inside the housing 11, a compressor 12, a heat exchanger 13, a flow rate regulating valve 14, a blower fan 15, a four-way valve 16, and a control unit 17 are housed.
  • the compressor 12, the heat exchanger 13, the flow rate adjustment 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 rate adjustment valve 14, and the four-way valve 16 are connected by a portion of the circulation path portion 18 located inside the housing 11.
  • the four-way valve 16 is provided in a portion of the circulation path section 18 that is connected to the discharge side of the compressor 12.
  • the four-way valve 16 can reverse the direction of the refrigerant 19 flowing within the circulation path section 18 by switching a part of the circulation path section 18 .
  • the path connected by the four-way valve 16 is the path shown by the solid line in the four-way valve 16 in FIG. 1
  • the refrigerant 19 flows in the circulation path section 18 in the direction shown by the solid line arrow in FIG.
  • the path connected by the four-way valve 16 is the path shown by the broken line in the four-way valve 16 in FIG. 1
  • the refrigerant 19 flows in the circulation path portion 18 in the direction shown by the broken line arrow in FIG.
  • the indoor unit 20 includes a housing 21, a heat exchanger 22, a blower fan 23, and a control device 24.
  • a heat exchanger 22, a blower fan 23, and a control device 24 are housed inside the casing 21.
  • the indoor unit 20 is capable of a cooling operation that cools the air in the room where the indoor unit 20 is placed, and a heating operation that warms the air in the room where the indoor unit 20 is placed.
  • the refrigerant 19 flowing within the circulation path section 18 flows in the direction shown by the solid arrow in FIG. That is, when the indoor unit 20 is operated for cooling, the refrigerant 19 flowing in the circulation path section 18 is transferred to the compressor 12, the heat exchanger 13 of the outdoor unit 10, the flow rate adjustment valve 14, and the heat exchanger 22 of the indoor unit 20. are circulated in this order and returned to the compressor 12.
  • the heat exchanger 13 in the outdoor unit 10 functions as a condenser
  • the heat exchanger 22 in the indoor unit 20 functions as an evaporator.
  • the refrigerant 19 flowing within the circulation path section 18 flows in the direction shown by the broken line in FIG. That is, when the indoor unit 20 is operated for heating, the refrigerant 19 flowing in the circulation path section 18 is transferred to the compressor 12, the heat exchanger 22 of the indoor unit 20, the flow rate adjustment valve 14, and the heat exchanger 13 of the outdoor unit 10. are circulated in this order and returned to the compressor 12.
  • the heat exchanger 13 in the outdoor unit 10 functions as an evaporator
  • the heat exchanger 22 in the indoor unit 20 functions as a condenser.
  • FIG. 2 is a perspective view showing the outdoor unit 10.
  • FIG. 3 is a sectional view of the outdoor unit 10 taken along line III-III in FIG. 2.
  • the casing 11 of the outdoor unit 10 has a substantially rectangular parallelepiped box shape.
  • the housing 11 includes a front panel 11a that covers the internal space of the housing 11 from the front side, a back panel 11d that covers the interior space of the housing 11 from the rear side, a top plate 11t that covers the interior space from the top side, and a bottom panel 11a that covers the internal space of the housing 11 from the front side. It has a bottom plate 11c that covers from the side.
  • 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 toward the front.
  • the opening 11b is a substantially circular hole in plan view.
  • a fan chamber 11e in which a heat exchanger 13, a blower fan 15, and a motor support stand 30 are housed is provided inside the housing 11. Further, although not shown, a machine room in which the compressor 12 and the control unit 17 are housed is separately provided inside the housing 11. The fan room 11e and the machine room are partitioned by a partition member.
  • the blower fan 15 is located on the front side (+X side) of the heat exchanger 13.
  • a circulation path section 18 (see FIG. 1) is connected to the heat exchanger 13.
  • a refrigerant flows inside the heat exchanger 13 .
  • Heat exchanger 13 is cooled by blower fan 15 .
  • the blower fan 15 includes a fan motor 60 having a rotating shaft 61 and rotary blades 15b fixed to the rotating shaft 61.
  • the rotation axis J extends in the front-rear direction.
  • the rotary blade 15b is rotated around the rotation axis J by the fan motor 60.
  • the rotary blade 15b is arranged inside the housing 11 facing the opening 11b.
  • air is sucked into the housing 11 from the air intake port 11f provided on the rear panel 11d of the housing 11.
  • the air sucked into the housing 11 by the rotary blades 15b passes through the heat exchanger 13 and the rotary blades 15b, and is blown out to the front side of the housing 11 from the opening 11b.
  • FIG. 4 is a perspective view of the fan motor 60 and the motor support stand 30 that supports the fan motor 60.
  • the fan motor 60 includes a substantially cylindrical motor main body 62, a rotating shaft 61 extending forward from the motor main body 62 around a rotation axis J, and a plurality of rotating shafts (four in this embodiment) provided on the outer periphery of the motor main body 62. It has a mounting part 63.
  • the plurality of attachment parts 63 are arranged at equal intervals in the circumferential direction of the rotation axis J.
  • the mounting portion 63 is provided with a through hole into which a motor fixing screw 73 is inserted.
  • the fan motor 60 is fixed to the motor support base 30 at a mounting portion 63 .
  • the fan motor 60 is fixed to the housing 11 via the motor support stand 30.
  • the motor support stand 30 is located on the rear side of the fan motor 60.
  • the motor support stand 30 is located inside the housing 11 .
  • 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 strut 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 .
  • the lower base member 33 is a member to which the lower ends of the pair of support members 31 are fixed, and is also fixed to the bottom surface (bottom plate 11c) of the housing 11.
  • the upper base member 32 is a member to which the upper ends of the pair of support members 31 are fixed, and is also fixed to the housing 11.
  • the support member 31 is a columnar member with a substantially C-shaped cross section.
  • the pair of support members 31 extend vertically and are lined up in the left-right direction.
  • the pair of strut members 31 are arranged behind the fan motor 60. When looking at the fan motor 60 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 have the same shape.
  • the motor support plate 40 is a substantially rectangular plate-like member when the fan motor 60 is viewed from the front.
  • the motor support plate 40 has a laterally symmetrical shape.
  • the motor support plate 40 is fixed across a pair of support members 31 arranged side by side in the left-right direction. Further, a 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.
  • FIG. 5 is a front view of the fan motor 60 and a portion of the motor support stand 30.
  • FIG. 6 is a perspective view of the motor support plate 40 viewed diagonally from the front.
  • FIG. 7 is a perspective view of the motor support plate 40 viewed diagonally from the rear.
  • FIG. 8 is a cross-sectional view of the motor support plate 40.
  • the motor support plate 40 includes a first plate portion 41 located at the center in the left-right direction, a second plate portion 44 provided at the ends of the first plate portion 41 in the left-right direction, and a second plate portion 44 located at the left-right center. It has a plurality of bent plate parts 45, 46, 47, 48, and 49 that reinforce the first plate part 41 and the second plate part 44.
  • the motor support plate 40 is formed by pressing a metal plate. That is, the first plate part 41, the second plate part 44, and the plurality of bent plate parts 45, 46, 47, 48, and 49 are parts formed by bending a single plate material.
  • the first plate portion 41 extends along a plane orthogonal to the front-rear direction, with the front-rear direction being the thickness direction.
  • An arcuate edge 41a and a pair of linear edges 41b are provided at the upper and lower edges of the first plate portion 41, respectively.
  • the arcuate edge portion 41a extends in an arc shape with the rotation axis J as the center.
  • the pair of linear edges 41b are arranged on both left and right sides of the arcuate edge 41a, and extend linearly in the left-right direction.
  • the bending plate parts 45, 46, 47, 48, and 49 of the motor support plate 40 are a first bending plate part 45, a second bending plate part 46, a third bending plate part 47, and a fourth bending plate part. (bending plate part) 48, and a fifth bending plate part (bending plate part) 49.
  • the first bending plate part 45 and the second bending plate part 46 are provided on the upper edge and the lower edge of the first plate part 41.
  • One first folding plate part 45 and two second folding plate parts 46 are provided on the upper edge and the lower edge of the first plate part 41, respectively.
  • the two second bending plate parts 46 are arranged on both left and right sides of the first bending plate part 45.
  • the first bent plate part 45 and the second bent plate part 46 are formed by being bent forward with respect to the first plate part 41.
  • the first bent plate part 45 and the second bent plate part 46 are orthogonal to the first plate part 41.
  • the first bent plate portion 45 is provided on the arcuate edge 41a of the first plate portion 41. Therefore, the first plate portion 41 is curved in an arc shape around the rotation axis J.
  • the second bent plate portion 46 is provided on the linear edge portion 41b of the first plate portion 41.
  • the second bent plate portion 46 extends linearly in the left-right direction.
  • the third bending plate part 47 is provided at the upper edge and lower edge of the second plate part 44.
  • the third bent plate portion 47 is formed by being bent laterally with respect to the first plate portion 41 .
  • the third bent plate portion 47 is perpendicular to the second plate portion 44 .
  • the third bending plate portion 47 extends linearly in the front-rear direction.
  • the third bending plate part 47 is connected to the second bending plate part 46.
  • the third bent plate portion 47 reinforces the second plate portion 44 .
  • the second bending plate part 46 and the third bending plate part 47 are connected to each other. Therefore, the second bending plate part 46 and the third bending plate part 47 increase the rigidity of the boundary between the first plate part 41 and the second plate part 44.
  • the fourth bending plate part 48 and the fifth bending plate part 49 are connected to the inner edge 41e of the motor insertion hole 41h of the first plate part 41.
  • Two fourth bending plate parts 48 and two fifth bending plate parts 49 are provided on the inner edge 41e of the motor insertion hole 41h.
  • the fourth bending plate part 48 and the fifth bending plate part 49 are curved in an arc shape around the rotation axis J.
  • the two fourth bending plate parts 48 are arranged above and below the rotation axis J, respectively.
  • the two fifth bending plate portions 49 are arranged on the left and right sides of the rotation axis J, respectively. Therefore, the fourth bending plate part 48 and the fifth bending plate part 49 are arranged alternately in the circumferential direction centering on the rotation axis J.
  • the fourth bent plate part 48 is formed by being bent forward with respect to the first plate part 41.
  • the first bending plate part 45 and the second bending plate part 46 are perpendicular to the first plate part 41.
  • the first bent plate part 45 and the second bent plate part 46 are orthogonal to the first plate part 41.
  • the motor support plate 40 has a fourth bending plate part 48 and a fifth bending plate part 49 that are bent in the front-rear direction from the inner edge 41e of the motor insertion hole 41h.
  • the fourth bent plate part 48 and the fifth bent plate part 49 reinforce the first plate part 41 around the motor insertion hole 41h of the motor support plate 40.
  • the rigidity of the motor support plate 40 can be increased without increasing the projected area of the motor support plate 40 in the front-rear direction, and the support of the fan motor 60 by the motor support plate 40 can be stabilized.
  • the first bending plate part 45 is bent forward with respect to the first plate part 41, and the fourth bending plate part 48 is bent backward with respect to the first plate part 41. Therefore, the motor support plate 40 is reinforced by being bent in different directions relative to the first plate portion 41 in the upper and lower regions of the motor insertion hole 41h.
  • the second plate part 44 is bent backward with respect to the first plate part 41, and the fifth bent plate part 49 is bent forward with respect to the first plate part 41. Therefore, the motor support plate 40 is reinforced by being bent in different directions relative to the first plate portion 41 in the right and left regions of the motor insertion hole 41h.
  • the upper edge 49a of the fifth bending plate portion 49 extends linearly in the front-rear direction.
  • the upper and lower positions of the upper edges 49a of the two fifth bending plate portions 49 of this embodiment correspond to each other.
  • mounting portions 63 for fan motors 60 are disposed above the upper edges 49a of the two fifth bent plate portions 49, respectively.
  • the fan motor 60 of this embodiment is attached to the motor support plate 40 with the rotation axis J oriented in the horizontal direction. Since the fan motor 60 has a large weight, it is difficult to perform the installation work while holding the fan motor 60 in the air.
  • the mounting portion 63 of the fan motor 60 can be mounted on the upper edge 49a of the fifth bending plate portion 49. Therefore, the operator can temporarily hold the fan motor 60 on the motor support plate 40 during the installation work.
  • the motor support plate 40 is fixed to the column member 31 at the column fixing portion 42.
  • the column fixing portion 42 is constituted by the left-right end portion of the first plate portion 41 and the second plate portion 44 connected to the end portion. That is, the motor support plate 40 has pillar fixing portions 42 provided at each end in the left and right direction.
  • the pair of pillar fixing portions 42 have shapes that are symmetrical to each other.
  • the strut fixing portion 42 refers to the entire portion of the motor support plate 40 that is fixed to the strut member 31 by contacting the strut member 31 with surface pressure applied thereto. .
  • the pillar fixing part 42 has two first fixing parts 42a and two second fixing parts 42b.
  • the first fixing portion 42a and the second fixing portion 42b are screwed to the support member 31. That is, the column fixing portion 42 has a plurality of fixing parts 42a and 42b that are screwed to the column member 31.
  • the first fixing part 42a is provided on the second plate part 44.
  • the first fixing part 42a has a first hole 42ah that penetrates the second plate part 44.
  • the second fixing portion 42b is provided on the first plate portion 41.
  • the second fixing part 42b has a second hole 42bh that penetrates the first plate part 41. That is, some of the plurality of fixing parts 42a, 42b are provided on the first plate part 41, and other parts are provided on the second plate part 44.
  • the first fixing part 42a is fixed to the column member 31 by a first screw 71
  • the second fixing part 42b is fixed to the column member 31 by a second screw 72.
  • the second plate part 44 where the first fixing part 42a is provided and the first plate part 41 where the second fixing part 42b is provided are orthogonal to each other. Therefore, the strut fixing portions 42 are fixed to the strut member 31 from directions perpendicular to each other. According to this embodiment, the fixing strength of the column fixing portion 42 can be increased. Further, according to the present embodiment, even if vibrations are applied to the support column fixing portion 42 in various directions as the fan motor 60 is driven, loosening of the first screw 71 and the second screw 72 can be suppressed. Thereby, the reliability of fixing the motor support plate 40 and the support member 31 can be improved.
  • the first plate portion 41 is provided with a motor insertion hole 41h, a plurality of (four in this embodiment) motor fixing portions 43, and a convex portion 50.
  • the motor insertion hole 41h penetrates the first plate portion 41 in the front-rear direction.
  • the motor insertion hole 41h is located between the pair of support members 31.
  • the motor insertion hole 41h of this embodiment has a substantially circular shape centered on the rotation axis J.
  • the shape of the motor insertion hole 41h in plan view is not limited to a circle, and may be other shapes such as a polygon.
  • the plurality of motor fixing parts 43 are lined up 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.
  • a fan motor 60 is fixed to the motor fixing portion 43 .
  • the four motor fixing parts 43 are arranged at the upper right, lower right, upper left, and lower left with respect to the rotation axis J, respectively.
  • Each motor fixing portion 43 is provided with a screw hole 43h.
  • a fan motor 60 is arranged inside the motor insertion hole 41h. Further, the four attachment parts 63 provided on the fan motor 60 are arranged in front of the first plate part 41.
  • the mounting portion 63 contacts the motor fixing portion 43 from the front.
  • the fan motor 60 is fixed to the motor support plate 40 by passing the motor fixing screw 73 through the through hole of the mounting part 63 and fastening it to the screw hole 43h (see FIG. 6) of the motor fixing part 43.
  • the motor fixing screws 73 are tightened, the rear surface of the mounting portion 63 and the front surface of the motor support plate 40 come into contact with each other, applying surface pressure and restricting relative movement by frictional force.
  • the motor fixing portion 43 refers to a region of the front surface of the first plate portion 41 that comes into contact with the mounting portion 63 of the fan motor 60 and is subjected to surface pressure.
  • the convex portion 50 is a portion of the first plate portion 41 that protrudes forward.
  • the convex portion 50 of this embodiment is formed by drawing and has a shape that gently swells toward the front. In this embodiment, a case will be described in which the convex portion 50 protrudes forward on the first plate portion 41, but the convex portion 50 may protrude rearward. That is, the convex portion 50 only needs to protrude to one side in the front-rear direction.
  • the convex portion 50 has a top surface 50b and a side surface 50a.
  • the top surface 50b is located at the tip of the protrusion 50 in the protruding direction.
  • the top surface 50b extends along a plane orthogonal to the front-rear direction.
  • the side surface 50a connects the front surface of the first plate section 41 on the base side of the convex section 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 in the direction in which the convex portion 50 projects (forward) with respect to a plane perpendicular to the front-rear direction.
  • 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 each part of the convex portion 50.
  • the annular convex portion 51 and the reinforcing convex portion 52 are connected to each other.
  • the protrusion height of the annular convex portion 51 and the protrusion height of the reinforcing convex portion 52 are equal to each other.
  • the annular convex portion 51 and the reinforcing convex portion 52 may have different protrusion heights.
  • One of the pair of reinforcing protrusions 52 is located on the right side of the annular protrusion 51, and the other is located on the left side of the annular protrusion 51.
  • the pair of reinforcing convex portions 52 have shapes that are symmetrical to each other with respect to the rotation axis J.
  • the annular convex portion 51 extends annularly along the inner edge 41e of the motor insertion hole 41h.
  • the motor insertion hole 41h of this embodiment has a substantially circular shape centered on the rotation axis J. Therefore, the annular convex portion 51 extends in an annular shape around the rotation axis J.
  • annular means a shape formed in a continuous loop shape, and is a concept that includes cases where the shape in plan view is not necessarily circular. Therefore, the shape of the annular convex portion 51 in plan view does not have to be circular.
  • a motor fixing part 43 is arranged on the annular convex part 51. Therefore, the motor fixing part 43 is provided on the top surface 50b of the annular convex part 51 on the front surface of the first plate part 41. According to this embodiment, the fan motor 60 is fixed to the annular convex portion 51 provided along the inner edge 41e of the motor insertion hole 41h of the motor support plate 40. By providing the annular convex portion 51 around the motor insertion hole 41h, the motor support plate 40 can increase the moment of inertia of the area and increase the rigidity.
  • the vertical dimension D1 of the annular convex portion 51 in this embodiment is smaller than the vertical dimension D2 of the column fixing portion 42.
  • the motor support plate 40 of this embodiment by providing the annular convex portion 51, the rigidity of the motor support plate 40 along the inner edge 41e of the motor insertion hole 41h is sufficiently increased. Therefore, the motor support plate 40 can firmly support the fan motor 60 between the post fixing part 42 and the fan motor 60 even if the vertical dimension D2 of the post fixing part 42 is reduced.
  • the vertical dimension D2 of the column fixing portion 42 smaller than the vertical dimension D1 of the annular convex portion 51, the projected area of the motor support plate 40 in the front-rear direction can be reduced. Can be done. Thereby, the air passage of the air blowing fan 15 can be prevented from being narrowed by the motor support plate 40, and an increase in ventilation resistance within the outdoor unit 10 can be suppressed.
  • the pair of reinforcing protrusions 52 extend from the annular protrusion 51 to the left and right column fixing parts 42, respectively.
  • the reinforcing convex portion 52 has a central convex portion 54 located at the center in the vertical direction, and side convex portions 53 located above and below the central convex portion 54, respectively.
  • the pair of side protrusions 53 have shapes that are symmetrical to each other in the vertical direction.
  • the central convex portion 54 has a vertically symmetrical shape with respect to the rotation axis J.
  • the side surface 50a of the reinforcing convex portion 52 has a first side surface 53a, a second side surface 54a, a third side surface 53b, a fourth side surface 53c, a fifth side surface 54b, and a sixth side surface 52a.
  • the first side surface 53a, the third side surface 53b, and the fourth side surface 53c constitute the side surface 50a of the side protrusion 53.
  • the first side surface 53a and the third side surface 53b extend linearly in the left-right direction.
  • the first side surface 53a and the third side surface 53b are arranged side by side in the vertical direction.
  • the first side surface 53a is located further away from the central convex portion 54 than the third side surface 53b in the vertical direction.
  • the fourth side surface 53c is arranged at the end of the side 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.
  • the fifth side surface 54b and the pair of second side surfaces 54a constitute a side surface 50a of the central convex portion 54.
  • the pair of second side surfaces 54a linearly extend in a direction in which they move away from the rotation axis J in the left-right direction and approach each other in the up-down direction.
  • the fifth side surface 54b connects the pair of second side surfaces 54a.
  • the fifth side surface 54b extends linearly in the vertical direction at the central portion, curves in an arc shape at the upper end and the lower end, and smoothly connects to the second side surface 54a.
  • the sixth side surface 52a is located between the side protrusions 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 side convex portion 53 and the second side surface 54a of the central convex portion 54.
  • a first imaginary line L1 and a second imaginary line L2 are assumed when viewed from the front and rear directions.
  • the first virtual line L1 and the second virtual line L2 each pass through the motor fixing portion 43.
  • One first virtual line L1 and one second virtual line L2 are assumed for each motor fixing portion 43.
  • the first imaginary line L1 and the second imaginary line each extend from the motor fixing part 43 toward the column fixing part 42.
  • the first imaginary line L1 and the second imaginary line L2 extend in mutually different directions.
  • the first virtual line L1 in this embodiment extends parallel to the left-right direction.
  • the second imaginary line L2 of this embodiment extends in a direction diagonal to the left-right direction and the up-down direction.
  • the motor fixing portion 43 of this embodiment is a region provided on the front surface of the first plate portion 41 and having a certain area. Therefore, the first virtual line L1 and the second virtual line L2 can pass through a region having a constant width.
  • the first side surface 53a extends along the first imaginary line L1.
  • the second side surface 54a extends along the second imaginary line L2. That is, the reinforcing convex portion 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.
  • the cross-sectional shape becomes a stepped shape, thereby increasing the moment of inertia of the area and increasing the rigidity. Therefore, the rigidity of the convex portion 50 increases in the direction along the side surface 50a. That is, according to the present embodiment, the first plate portion 41 has increased rigidity 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 different directions from the motor fixing part 43 toward the column fixing part 42.
  • the first side surface 53a and the second side surface 54a constitute a reinforcing structure similar to a truss structure that connects the motor fixing part 43 and the column fixing part 42.
  • the motor support plate 40 can firmly connect the support member 31 and the fan motor 60.
  • the vibration of the fan motor 60 can be suppressed and the noise of the outdoor unit 10 can be suppressed.
  • the rigidity of the motor support plate 40 can be increased without increasing the size of the motor support plate 40. Thereby, it is possible to prevent the air passage of the air blowing fan 15 from being narrowed by the motor support plate 40, and to suppress the ventilation resistance inside the outdoor unit 10 from increasing.
  • the first imaginary line L1 passes through the first fixed portion 42a when viewed from the front and rear directions. That is, the first fixing portion 42a is arranged on an extension line of the first side surface 53a extending along the first imaginary line L1 when viewed from the front-rear direction. Thereby, the first side surface 53a firmly connects the motor fixing part 43 and the first fixing part 42a, and the rigidity of the motor support plate 40 between the support member 31 and the fan motor 60 can be increased.
  • the first fixing portion 42a is provided on the second plate portion 44.
  • the first fixing portion 42a may be placed on the first plate portion 41 as long as it is placed on the first imaginary line L1 when viewed from the front-rear direction.
  • the first fixing portion 42a is arranged on an extension line of the first side surface 53a.
  • the fourth side surface 53c may be formed to extend along the first imaginary line L1, and the first fixing portion 42a may be arranged on an extension of the fourth side surface 53c. In this case, the fourth side surface 53c firmly connects the motor fixing part 43 and the first fixing part 42a.
  • the first virtual line L1 in this embodiment extends parallel to the left-right direction.
  • the strut member 31 extends in the vertical direction. Therefore, the first side surface 53a extending along the first imaginary line L1 extends in a direction that connects the first fixing part 42a and the column fixing part 42 at the shortest distance. Therefore, the rigidity of the first side surface 53a can be further increased.
  • the projected area of the motor support plate 40 in the front-rear direction is increased in order to provide the first side surface 53a. It is possible to suppress the As a result, the ventilation resistance inside the outdoor unit 10 can be suppressed from increasing, and the ventilation efficiency of the ventilation fan 15 can be increased.
  • the second imaginary line L2 passes between the two second fixing parts 42b when viewed from the front and rear directions.
  • the two second fixing parts 42b of one support post fixing part 42 are arranged in the vertical direction.
  • the column fixing part 42 is particularly firmly fixed in the region between the two second fixing parts 42b.
  • an extension line of the second side surface 54a extending along the second imaginary line L2 passes between the two second fixing parts 42b.
  • the second side surface 54a firmly connects the area between the motor fixing part 43 and the second fixing part 42b, and increases the rigidity of the motor support plate 40 between the support member 31 and the fan motor 60. Can be done.
  • the plurality of motor fixing parts 43 include a first motor fixing part 43A and a second motor fixing part 43B arranged in a line in the vertical direction.
  • the second imaginary line L2 extends from the first motor fixing part 43A and the second motor fixing part 43B toward between the two second fixing parts 42b, respectively. That is, according to the present embodiment, the second imaginary line L2 extending from the first motor fixing part 43A and the second imaginary line L2 extending from the second motor fixing part 43B are separated from the annular convex part 51 in the left-right direction. Accordingly, they extend toward each other in the vertical direction. Furthermore, these two second imaginary lines L2 intersect between the pair of second fixing parts 42b.
  • the reinforcing convex portion 52 has two second side surfaces 54a extending along the two second imaginary lines L2.
  • the extension lines of the two second side surfaces 54a extending from the vertically arranged first motor fixing part 43A and second motor fixing part 43B toward the column fixing part 42 are the two second It intersects between the fixed parts 42b.
  • the two second side surfaces 54a are the area between the first motor fixing part 43A and the column fixing part 42, and the area between the second motor fixing part 43B and the column fixing part 42. and strongly connect them. Thereby, the rigidity of the motor support plate 40 between the support member 31 and the fan motor 60 can be increased.
  • the motor support plate 40 can be firmly fixed to the column member 31 without unnecessarily increasing the number of fixing portions 42a, 42b provided on the column fixing portion 42. Therefore, the process of fixing the motor support plate 40 and the column member 31 in the column fixing portion 42 can be simplified.
  • FIG. 9 is a front view of a modified motor support plate 140 that can be employed in the outdoor unit 10 of the above-described embodiment.
  • the same reference numerals are given to the same components as in the already described embodiment, and the description thereof will be omitted.
  • each column fixing part 142 has two first fixing parts 42a and one second fixing part 142b.
  • the second fixing portion 142b is provided on the first plate portion 41.
  • the second fixing part 142b is arranged at the center of the column fixing part 142 in the vertical direction.
  • the second fixing portion 142b is screw-fixed to the support member 31 by a second screw 172.
  • a first imaginary line L1 and a second imaginary line L2 are assumed to exist on the motor support plate 140 when viewed from the front and rear directions.
  • the first virtual line L1 and the second virtual line L2 pass through the motor fixing portion 43.
  • the first side surface 53a of the reinforcing convex portion 52 extends along the first imaginary line L1
  • the second side surface 54a of the reinforcing convex portion 52 extends along the second imaginary line L2.
  • the second imaginary line L2 passes through the second fixed portion 142b when viewed from the front and back direction.
  • the two second fixing parts 142b are arranged on an extension of the second side surface 54a extending along the second imaginary line L2.
  • the second side surface 54a firmly connects the area between the motor fixing part 43 and the second fixing part 142b, and increases the rigidity of the motor support plate 140 between the support member 31 and the fan motor 60.
  • the second imaginary line L2 extending from the first motor fixing part 43A on the upper side and the second imaginary line L2 extending from the second motor fixing part 43B on the lower side increase in the vertical direction as they move away from the annular convex part 51 in the left-right direction. extend toward each other. Further, these two second imaginary lines L2 intersect with each other at the second fixed portion 142b.
  • the reinforcing convex portion 52 has two second side surfaces 54a extending along the two second imaginary lines L2.
  • the two second side surfaces 54a firmly connect the region between the first motor fixing part 43A, the second motor fixing part 43B, and the column fixing part 142, and the column member 31 and the fan
  • the rigidity of the motor support plate 140 between the motor 60 and the motor 60 can be increased.
  • the motor support plate 140 can be firmly fixed to the column member 31 without unnecessarily increasing the second fixing portion 142b of the column fixing portion 142.
  • the refrigeration cycle device equipped with the outdoor unit of the present disclosure may be any device that utilizes a refrigeration cycle in which refrigerant circulates, and is not limited to an air conditioner.
  • the refrigeration cycle device may be a heat pump water heater or the like.
  • Reinforcement convex portion 53a... First side surface, 54a... Second side surface, 60... Fan motor, 61... Rotating shaft, 100... Refrigeration cycle device, D1, D2... Dimension, J... Rotation axis line, L1... First Virtual line, L2...second virtual line

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Other Air-Conditioning Systems (AREA)

Abstract

Unité extérieure comprenant : une paire d'éléments de pilier de support ; et une plaque de support de moteur qui est fixée aux éléments de pilier de support au niveau de parties de fixation de pilier de support qui sont respectivement prévues dans des sections d'extrémité de la plaque de support de moteur dans un sens gauche/droite, et qui supporte un moteur de ventilateur entre la paire d'éléments de support de pilier. La plaque de support de moteur comprend une première section de plaque s'étendant selon un plan qui est perpendiculaire à un sens avant/arrière. La première section de plaque comprend un trou d'insertion de moteur à l'intérieur duquel le moteur de ventilateur est positionné, une pluralité de sections de fixation de moteur qui sont agencées le long d'un bord interne du trou d'insertion de moteur et auxquelles le moteur de ventilateur est fixé, et une section en saillie qui fait saillie vers un côté dans le sens avant/arrière. La section en saillie comprend une section en saillie en forme d'anneau qui s'étend le long du bord interne du trou d'insertion de moteur et sur laquelle les sections de fixation de moteur sont positionnées, et une section en saillie de renforcement qui s'étend à partir de la section en saillie en forme d'anneau vers les parties de fixation de pilier de support. En supposant qu'il y a des premières lignes imaginaires et des secondes lignes imaginaires qui s'étendent dans différents sens à partir des sections de support de moteur jusqu'aux parties de fixation de pilier, vues depuis le sens avant/arrière, des surfaces latérales de la section en saillie de renforcement comprennent des premières surfaces latérales qui s'étendent le long des premières lignes imaginaires et des secondes surfaces latérales qui s'étendent le long des secondes lignes imaginaires.
PCT/JP2022/023707 2022-06-14 2022-06-14 Unité extérieure et dispositif à cycle de réfrigération WO2023242934A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU2022465543A AU2022465543A1 (en) 2022-06-14 2022-06-14 Outdoor unit, and refrigeration cycle device
PCT/JP2022/023707 WO2023242934A1 (fr) 2022-06-14 2022-06-14 Unité extérieure et dispositif à cycle de réfrigération
JP2024527936A JPWO2023242934A1 (fr) 2022-06-14 2022-06-14

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2022/023707 WO2023242934A1 (fr) 2022-06-14 2022-06-14 Unité extérieure et dispositif à cycle de réfrigération

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WO2023242934A1 true WO2023242934A1 (fr) 2023-12-21

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AU (1) AU2022465543A1 (fr)
WO (1) WO2023242934A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3071922U (ja) * 2000-03-22 2000-09-29 船井電機株式会社 エアコン室外機のモータ取付台
JP2005030689A (ja) * 2003-07-04 2005-02-03 Daikin Ind Ltd 空気調和装置の室内機
JP2008111570A (ja) * 2006-10-30 2008-05-15 Daikin Ind Ltd 空気調和機用室外機ユニット

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3071922U (ja) * 2000-03-22 2000-09-29 船井電機株式会社 エアコン室外機のモータ取付台
JP2005030689A (ja) * 2003-07-04 2005-02-03 Daikin Ind Ltd 空気調和装置の室内機
JP2008111570A (ja) * 2006-10-30 2008-05-15 Daikin Ind Ltd 空気調和機用室外機ユニット

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AU2022465543A1 (en) 2024-08-29

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