WO2022064561A1 - 空気調和機の室外機 - Google Patents

空気調和機の室外機 Download PDF

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Publication number
WO2022064561A1
WO2022064561A1 PCT/JP2020/035803 JP2020035803W WO2022064561A1 WO 2022064561 A1 WO2022064561 A1 WO 2022064561A1 JP 2020035803 W JP2020035803 W JP 2020035803W WO 2022064561 A1 WO2022064561 A1 WO 2022064561A1
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WO
WIPO (PCT)
Prior art keywords
housing
outdoor unit
bell
bell mouth
gutter
Prior art date
Application number
PCT/JP2020/035803
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
哲也 石川
純一 坂本
光宣 前澤
Original Assignee
東芝キヤリア株式会社
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 東芝キヤリア株式会社 filed Critical 東芝キヤリア株式会社
Priority to CN202080105239.9A priority Critical patent/CN116134272B/zh
Priority to JP2022551466A priority patent/JP7423812B2/ja
Priority to PCT/JP2020/035803 priority patent/WO2022064561A1/ja
Publication of WO2022064561A1 publication Critical patent/WO2022064561A1/ja

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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
    • F24F1/20—Electric components for separate outdoor units
    • F24F1/22—Arrangement or mounting thereof
    • 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
    • F24F1/46—Component arrangements in separate outdoor units

Definitions

  • the present invention relates to an outdoor unit of an air conditioner.
  • the outdoor unit of a conventional air conditioner is equipped with a power transformer installed inside the housing.
  • the power transformer is covered with a box-shaped cover made of sheet metal and is arranged in an air passage through which air exchanged with heat by a heat exchanger is circulated.
  • the outdoor unit is installed outdoors. Therefore, the outdoor unit is exposed to wind and rain. Moisture such as rainwater easily enters the air passage inside the outdoor unit that circulates the air that has been heat-exchanged by the heat exchanger.
  • the waterproofness of the cover that covers the electric parts such as the power transformer placed in the air passage inside the outdoor unit must be ensured. If the waterproofness of the cover is impaired, the soundness of the electrical components inside the cover may be impaired.
  • an object of the present invention is to provide an outdoor unit of an air conditioner that can prevent moisture, for example, rainwater from reaching the electric parts and more reliably maintain the soundness of the electric parts.
  • the outdoor unit of the air conditioner according to the embodiment of the present invention is aligned horizontally with the housing and sucks air from the inside of the housing to suck air into the housing.
  • Two blowers that blow upward, two bell mouths corresponding to the two blowers, a compressor housed in the housing, and an electric component for driving the compressor or driving the two blowers. Is equipped.
  • the two bell mouths have substantially the same shape, and one of the bell mouths is rotated 180 degrees around the rotation center line of the blower with respect to the other bell mouth to face each other.
  • the two ventilation passages in which the two blowers are arranged and the non-ventilation space partitioned on the outside of the two ventilation passages and the inner surface of the housing are partitioned by the two ventilation passages.
  • the electrical component is arranged in the non-ventilated space.
  • Each of the bellmouths has a gutter placed beneath the seam of the two bellmouths.
  • Each of the bell mouths of the outdoor unit of the air conditioner according to the embodiment of the present invention extends flushly from the top surface of each of the bell mouths and covers the bell mouth of the connecting partner directly above the bell mouth. It is preferable to have a portion and a recess for flushly accommodating the lid portion of the bell mouth to be connected to the top surface of the bell mouth.
  • the electric component of the outdoor unit of the air conditioner according to the embodiment of the present invention is arranged directly under the gutter.
  • an outdoor unit of an air conditioner that can prevent moisture, for example, rainwater from reaching the electric parts and more reliably maintain the soundness of the electric parts.
  • FIG. 3 is a partial cross-sectional view of a bell mouth and a frame of an outdoor unit according to an embodiment of the present invention.
  • FIG. 3 is a partial cross-sectional view of a bell mouth of an outdoor unit according to an embodiment of the present invention.
  • FIGS. 1 to 5 An embodiment of the outdoor unit of the air conditioner according to the present invention will be described with reference to FIGS. 1 to 5.
  • the same or corresponding configurations are designated by the same reference numerals.
  • FIG. 1 is a perspective view of an outdoor unit of an air conditioner according to an embodiment of the present invention.
  • the air conditioner according to the present embodiment includes an outdoor unit 1 and an indoor unit (not shown).
  • the installation location of the indoor unit is inside the building.
  • the installation location of the outdoor unit 1 is outside the building.
  • the outdoor unit 1 is installed on a substantially horizontal foundation, that is, on an installation surface.
  • the indoor unit is installed by being embedded in the ceiling of the room or hanging from the ceiling or beams.
  • the air conditioner is equipped with a refrigeration cycle (not shown).
  • the refrigeration cycle consists of a heat exchanger 4 on the heat source side, a compressor 2, a heat exchanger on the user side (not shown), an expander (not shown), and a refrigerant pipe that circulates refrigerant in these devices (not shown). Omitted) and.
  • the refrigeration cycle may include a four-way valve (not shown) that switches between a cooling operation and a heating operation of the air conditioner.
  • the air conditioner may be a cooling / heating simultaneous operation type.
  • the air conditioner for simultaneous cooling and heating operation includes a plurality of indoor units, at least one outdoor unit, and a plurality of crossover pipes for passing refrigerant between the plurality of indoor units and at least one outdoor unit.
  • the plurality of crossing pipes are a high-pressure gas pipe that circulates a high-pressure gas refrigerant discharged from the compressor 2, a liquid pipe that circulates the liquid refrigerant condensed by the heat exchanger 4 on the heat source side, and heat exchange on the user side. It includes a low-pressure gas pipe that circulates a low-pressure gas refrigerant heat-exchanged by the vessel to the compressor 2.
  • the outdoor unit 1 houses a heat exchanger 4, a compressor 2, a four-way valve, a first electric parts box 9, and a second electric parts box 59 on the heat source side of the refrigeration cycle.
  • the indoor unit houses the heat exchanger on the user side of the refrigeration cycle.
  • the expansion valve may be housed in the indoor unit or may be housed in the outdoor unit. Further, the expansion valve may be provided in both the indoor unit and the outdoor unit.
  • the outdoor unit and the indoor unit are connected via a crossover pipe (not shown).
  • the crossover pipe is a part of the refrigerant pipe.
  • the air conditioner circulates the refrigerant between the heat exchanger 4 on the outdoor unit 1 side and the heat exchanger on the indoor unit side to harmonize the indoor air.
  • FIG. 2 is a perspective exploded view of the frame, motor base, and blower of the outdoor unit of the air conditioner according to the embodiment of the present invention.
  • the outdoor unit 1 of the air conditioner according to the present embodiment has a rectangular parallelepiped shape whose width dimension is smaller than the height dimension and whose depth dimension is smaller than the width dimension. It includes a body 3, a motor base 5 provided in the housing 3, and a blower 6 supported by the motor base 5.
  • a machine room 7 that houses the heat exchanger 4 and the compressor 2 and a blower room 8 that houses the blower 6 are partitioned.
  • the machine room 7 is arranged at the lower part in the housing 3.
  • the blower room 8 is arranged above the machine room 7.
  • a bell mouth 12 having an outlet 11 is provided on the upper surface of the blower chamber 8.
  • blowers 6 of a left blower 6L and a right blower 6R are arranged in the blower room 8.
  • a left bell mouth 12L having a left outlet 11L is provided directly above the left blower 6L.
  • a right bell mouth 12R having a right outlet 11R is provided directly above the right blower 6R. That is, the outdoor unit 1 includes a plurality of blowers 6, and the same number of outlets 11 and bell mouths 12 as the blowers 6.
  • the housing 3 includes a frame 15 and an outer plate 16 that covers the front surface of the frame 15.
  • the frame 15 is an assembly of a plurality of members which are sheet metal processed products of a steel plate. Each member is joined by screwing or welding.
  • the frame 15 has a base frame 21 arranged on the bottom surface of the housing 3, four pillars 22 extending upward from each of the four corners of the base frame 21, and four beams 23 spanning each of the adjacent pillars 22. And have.
  • the base frame 21 includes a plurality of girder members 25 extending parallel to the installation surface and combined in a grid shape.
  • the plurality of girders 25 are a plurality of vertical girders 25F along the front surface of the housing 3, a rear girder 25R along the back surface of the housing 3, and a plurality of vertical girders erected between the front girder 25F and the rear girder 25R.
  • the girder material 25C and the like are included.
  • the front girder material 25F and the rear girder material 25R extend in parallel.
  • the left end of the front girder member 25F corresponds to the left front corner portion of the bottom portion of the housing 3, and the right end of the front girder member 25F corresponds to the right front corner portion of the bottom portion of the housing 3.
  • the left end of the rear girder member 25R corresponds to the left rear corner portion of the bottom portion of the housing 3, and the right end of the rear girder member 25R corresponds to the right rear corner portion of the bottom portion of the housing 3.
  • the four pillars 22 extend parallel to each other.
  • the four pillars 22 have substantially the same length dimension.
  • the length of the pillar 22 corresponds to the height of the housing 3.
  • the four beams 23 are in the middle of the length of the pillar 22, and are bridged to substantially the same location in the height direction of the housing 3. In other words, the four beams 23 extend substantially parallel to the installation surface with the housing 3 grounded to the installation surface.
  • the four beams 23 are boundaries between the machine room 7 and the blower room 8.
  • the internal space of the housing 3 below the four beams 23 is the machine room 7, and the internal space of the housing 3 above the four beams 23 is the blower room 8.
  • the four beams 23 include a front beam 23F bridged between the left front pillar 22 and the right front pillar 22, and a rear beam 23R bridged between the left rear pillar 22 and the right rear pillar 22.
  • the front beam 23F and the rear beam 23R extend in parallel.
  • the housing 3 includes a center beam 23C bridged between the front beam 23F and the rear beam 23R in addition to the four beams 23.
  • the outer plate 16 covers the front surface of the machine room 7 of the housing 3, that is, the front side surface, and is appropriately divided within the same surface.
  • the outer plate 16 includes a plurality of members which are sheet metal processed products of a steel plate. Each member is screwed to the frame 15.
  • the back surface, the left side surface, and the right side surface of the housing 3 have openings. The heat exchanger 4 is exposed in this opening.
  • the heat exchanger 4 housed in the outdoor unit 1 includes a left heat exchanger 4L and a right heat exchanger (not shown).
  • the heat exchanger 4 is along the back surface, the left side surface, and the right side surface of the housing 3 surrounded by the pillars 22.
  • Each heat exchanger 4 is a plate-shaped heat exchanger formed in a U-shape (not shown) in a plan view of the housing 3, and the U-shaped opening is the front surface of the housing 3. It faces the outer panel 16. Therefore, the machine room 7 of the housing 3 has a structure in which outside air is directly sent to the heat exchanger 4 exposed to the openings on the back surface, the left side surface, and the right side surface, and the outside air is released to the blower room 8.
  • the front beam 23F is an integrally molded product of a steel plate having an L-shaped cross section.
  • the front beam 23F is horizontally bridged between the left front pillar 22 and the right front pillar 22.
  • the left end of the front beam 23F is screwed or welded to the left front pillar 22.
  • the right end of the front beam 23F is screwed or welded to the right front pillar 22.
  • the front beam 23F having an L-shaped cross section has a first plate portion 27 along the front surface of the housing 3 and a second plate portion 28 protruding in a flange shape from the front surface of the housing 3 to the inside of the housing 3. is doing.
  • the rear beam 23R has the shape of a mirror image of the front beam 23F.
  • the rear beam 23R is an integrally molded product of a steel plate having an L-shaped cross section.
  • the rear beam 23R is horizontally bridged between the pillar 22 on the left rear side and the pillar 22 on the right rear side.
  • the left end of the rear beam 23R is screwed or welded to the left rear pillar 22.
  • the right end of the rear beam 23R is screwed or welded to the right rear pillar 22.
  • the rear beam 23R having an L-shaped cross section has a first plate portion 27 along the back surface of the housing 3 and a second plate portion 28 protruding from the back surface of the housing 3 to the inside of the housing 3 in a flange shape. ing.
  • the center beam 23C is erected horizontally between the central portion of the front beam 23F and the central portion of the rear beam 23R in the depth direction of the housing 3.
  • a support portion 71 for supporting the bell mouth 12 is provided at the upper end of the center beam 23C.
  • a notch 23Ca is provided on the front side of the housing 3 of the center beam 23C.
  • a notch 27a is provided in the center of the first plate portion 27 of the front beam 23F.
  • a mounting portion 29 for mounting the second electric component box 59 is horizontally provided between the cutout portion 23Ca and the cutout portion 27a.
  • the motor base 5 is an integrally molded product of sheet metal processed steel plate.
  • the motor base 5 is installed on the front beam 23F and the rear beam 23R as a pair of horizontal members. That is, the motor base 5 is erected in the depth direction of the housing 3.
  • the outdoor unit 1 includes the same number of motor bases 5 as the plurality of blowers 6, that is, two motor bases 5.
  • the left motor base 5L supports the left blower 6L.
  • the right motor base 5R supports the right blower 6R.
  • the two blowers 6, that is, the left blower 6L and the right blower 6R, are arranged in the horizontal direction of the housing 3 and in the width direction of the housing 3.
  • the two blowers 6 suck in air from the inside of the housing 3 and blow it out above the housing 3. That is, the left blower 6L sucks in air exclusively through the left heat exchanger 4L, and blows air from the left outlet 11L of the left bell mouth 12L to the upper side of the housing 3.
  • the right blower 6R sucks air exclusively through the right heat exchanger and blows air from the right outlet 11R of the right bell mouth 12R to the upper side of the housing 3.
  • the blower 6 includes an electric motor 31 supported by the motor base 5 and an impeller 32 rotationally driven by the electric motor 31.
  • the blower 6 directs the rotating shaft 33 of the electric motor 31 in the height direction of the housing 3, that is, in the vertical direction when the housing 3 is in contact with the horizontal plane.
  • the rotary shaft 33 of the motor 31 projects vertically upward from the casing 35 of the motor 31.
  • the casing 35 includes a plurality of legs 36 that project in a direction orthogonal to the rotation axis 33.
  • the blower 6 is supported by the motor base 5 via the legs 36.
  • the impeller 32 is a so-called axial flow impeller.
  • the impeller 32 is also simply referred to as a propeller.
  • the impeller 32 is fixed to the rotating shaft 33 of the electric motor 31.
  • the impeller 32 is arranged above the casing 35 of the electric motor 31.
  • the first electric component box 9 is arranged in the front upper part in the machine room 7, and is supported by the pillar 22 on the front right and the front beam 23F.
  • the first electric component box 9 houses various electric components including a control circuit and a drive circuit.
  • FIG. 3 is a perspective view of a bell mouth of an outdoor unit according to an embodiment of the present invention.
  • FIG. 4 is a partial cross-sectional view of the bell mouth and the frame of the outdoor unit according to the embodiment of the present invention.
  • the outdoor unit 1 includes two bell mouths 12 corresponding to two blowers 6.
  • the two bell mouths 12 have substantially the same shape and substantially the same dimensions. Further, the two bell mouths 12 are connected in a state where one of the bell mouths 12 is rotated 180 degrees around the rotation center line of the blower 6 with respect to the other bell mouth 12 so as to face each other. In other words, the two bellmouths 12 are viewed from the seam 41 side of the two bellmouths 12, that is, one bellmouth 12 is viewed from the other bellmouth 12 side, and the other bellmouth 12 is viewed from one bellmouth. When viewed from the 12 side, they have substantially the same shape and substantially the same dimensions.
  • Each bell mouth 12 has a cylindrical portion 43 for partitioning a ventilation passage 42 in which a blower 6 is arranged, a top plate portion 45 connected to the upper end of the cylindrical portion 43, and a bottom plate connected to the lower end of the cylindrical portion 43. It has a part 46 and.
  • the cylindrical portion 43 has a center line substantially matching the rotation center line of the blower 6 and extends in the vertical direction of the housing 3.
  • the ventilation passage 42 is a space inside the cylindrical portion 43 and is a cylindrical space that does not hinder the rotation of the blower 6.
  • the top plate portion 45 extends along a plane perpendicular to the center line of the cylindrical portion 43.
  • the top plate portion 45 extends so as to close the space partitioned between the outer peripheral surface of the cylindrical portion 43 and the inner surface of the housing 3.
  • a reinforcing rib 48 for increasing the rigidity of the top plate portion 45 is provided on the outer edge portion of the top plate portion 45. The reinforcing rib 48 hangs down toward the bottom plate portion 46.
  • the bottom plate portion 46 extends along a plane perpendicular to the center line of the cylindrical portion 43.
  • the bottom plate portion 46 extends so as to close the space partitioned between the outer peripheral surface of the cylindrical portion 43 and the inner surface of the housing 3.
  • a reinforcing rib 49 for increasing the rigidity of the bottom plate portion 46 is provided on the outer edge portion of the bottom plate portion 46.
  • the reinforcing rib 49 hangs downward so as to move away from the top plate portion 45.
  • the bell mouth 12 is provided with a plurality of reinforcing ribs 50 provided at appropriate intervals in the circumferential direction of the cylindrical portion 43.
  • Each reinforcing rib 50 extends over the outer peripheral surface of the cylindrical portion 43 and the upper surface of the bottom plate portion 46.
  • Each bell mouth 12 is divided into two in the vertical direction with the cylindrical portion 43 as a boundary.
  • Each bell mouth 12 has a bell mouth lower member 51 integrally having a bottom plate portion 46 and an inlet side portion of the cylindrical shape portion 43, and a bell integrally having a top plate portion 45 and an outlet side portion of the cylindrical shape portion 43.
  • a lock mechanism 53 for connecting the upper mouse member 52, the lower bell mouth member 51, and the upper bell mouth member 52 is provided.
  • the lock mechanism 53 includes a plurality of combinations of irregularities that are engaged with each other.
  • the concave portion is, for example, a hole, and the convex portion is, for example, a nail.
  • the bell mouth lower member 51 and the bell mouth upper member 52 are combined and connected in a direction along the rotation center line of the blower 6.
  • the connecting surface 55 between the bell mouth lower member 51 and the bell mouth upper member 52 is preferably close to the outlet side of the ventilation passage 42.
  • the non-ventilation space 58 is a space outside the cylindrical portion 43 of each bell mouth 12, and is a space inside the housing 3.
  • the outdoor unit 1 is provided with a second electrical component box 59 arranged in this non-ventilated space 58.
  • the second electrical component box 59 houses a reactor (not shown) having, for example, a laminated iron core (not shown) and a coil (not shown) wound around the laminated iron core.
  • the reactor suppresses the influence of noise generated by the inverter circuit that controls the drive of the compressor 2.
  • the non-ventilation space 58 partitioned by the two bell mouths 12 and the housing 3 is a space cut off from the ventilation passage 42, and is not a space in which the air flow in the outdoor unit 1 actively circulates. That is, the second electric component box 59 arranged in the non-ventilated space 58 is outside the air passage through which the air heat-exchanged by the heat exchanger 4 flows. Therefore, the second electric component box 59 arranged in the non-ventilated space 58 is not exposed to the moisture contained in the air passing through the air passage in the outdoor unit 1.
  • each bell mouth 12 of the outdoor unit 1 is provided with a gutter 61 arranged directly under the seam 41 of the two bell mouths 12.
  • FIG. 5 is a partial cross-sectional view of the bell mouth of the outdoor unit according to the embodiment of the present invention.
  • the cross section of FIG. 5 is a cross section that intersects and crosses the seam 41 of the two bell mouths 12.
  • the gutter 61 of the outdoor unit 1 protrudes from the lower surface of the top plate portion 45 of one bell mouth 12, and the other bell mouth 12 It reaches the lower surface of the top plate portion 45 of the above.
  • the cross-sectional shape of the gutter 61 is a U-shaped shape that is released toward the upper side of the housing 3, that is, toward the lower surface of the top plate portion 45 of the two bell mouths 12.
  • the gutter 61 receives water such as rainwater dripping through the seam 41, guides this water to the end from the center of the seam 41 or the end from the end of the seam 41, and drops the water.
  • the gutter 61 extends along the seam 41.
  • the gutter 61 may be inclined downward toward the center of the seam 41, may be inclined downward toward the end of the seam 41, or may extend substantially horizontally.
  • the two bell mouths 12 have substantially the same shape. Therefore, for example, if the gutter 61 is present over the entire length of the seam 41 of both bell mouths 12, the gutter 61 of one bell mouth 12 interferes with the gutter 61 of the other bell mouth 12, and 2 The connection of the two bell mouths 12 is blocked. That is, with one of the bell mouths 12 rotated 180 degrees around the center line of the cylindrical portion 43 and facing each other with respect to the other bell mouth 12, the gutter 61 of one bell mouth 12 faces the other. When facing the gutter 61 of the bell mouth 12, the connection between the two bell mouths 12 is blocked.
  • the gutter 61 of one bell mouth 12 and the gutter 61 of the other bell mouth 12 are provided so as to be positioned alternately.
  • the gutter 61 of one bellmouth 12 and the gutter 61 of the other bellmouth 12 are staggered and do not face each other.
  • the gutter 61 in order to prevent the gutter 61 of one bell mouth 12 and the gutter 61 of the other bell mouth 12 from facing each other, the gutter 61 has a seam 41 rather than the center of the seam 41.
  • the gutter 61 is provided at the end on the back side of the seam 41 from the center of the seam 41, and is not provided at the end on the front side of the seam 41 from the center of the seam 41.
  • the gutters 61 of the two bell mouths 12 provided alternately may or may not be connected along the seam 41 in a state where the two bell mouths 12 are connected.
  • each bell mouth 12 has a lid portion 62 extending flushwise from the top surface 12a of each bell mouth 12 and covering directly above the gutter 61 of the bell mouth 12 to be connected, and the bell mouth 12 to be connected.
  • the lid portion 62 is provided with a recess 63 for accommodating the lid portion 62 flush with the top surface 12a of the bell mouth 12.
  • the lid portion 62 protrudes from the top plate portion 45 of one bell mouth 12 and reaches the top plate portion 45 of the other bell mouth 12.
  • the lid portion 62 is provided so that the lid portion 62 of one bell mouth 12 and the lid portion 62 of the other bell mouth 12 are alternately positioned when the two bell mouths 12 are faced to each other so as to be connectable. ing.
  • the lid portion 62 of one bell mouth 12 and the lid portion 62 of the other bell mouth 12 are staggered and do not face each other.
  • the lid portion 62 is located closer to the center of the seam 41 in order to prevent the lid portion 62 of one bell mouth 12 and the lid portion 62 of the other bell mouth 12 from facing each other.
  • the lid portion 62 is provided at the end portion in front of the seam 41 from the center of the seam 41, and is not provided at the end portion on the back side of the seam 41 from the center of the seam 41.
  • the lid portion 62 extends along the seam 41.
  • the lid portion 62 may overlap with at least one end of the gutter 61 located directly below.
  • the lid portion 62 of the present embodiment overlaps with the end portion of the gutter 61 closer to the center of the seam 41.
  • each bell mouth 12 accommodates the lid portion 62 of the connecting partner in a state where the two bell mouths 12 are connected.
  • the seam 41 of the bell mouth 12 is configured with a labyrinth structure consisting of adjacent reinforcing ribs 48, gutters 61, and a lid portion 62. This structure ensures that moisture is prevented from entering.
  • the second electric component box 59 is arranged directly under the gutter 61. That is, the gutter 61 prevents the water flowing from the seam 41 of the two bell mouths 12 into the non-ventilated space 58 from pouring into the second electric parts box 59, and prevents the water from reaching the second electric parts box 59. Keep away from the second electrical parts box 59.
  • the bottom plate portion 46 of the bell mouth 12 is provided with a notch portion 65 for arranging the second electric component box 59.
  • the notch 65 avoids the second electrical component box 59 so that the second electrical component box 59 is directly supported by the frame 15 (mounting portion 29) of the housing 3 with the two bell mouths 12 connected. ing.
  • the second electrical component box 59 arranged in the non-ventilated space 58 can be seen from both directions at the seam 41 of the two bell mouths 12 or from the direction intersecting the seam 41 of the two bell mouths 12. , Overlaps the cylindrical portion 43 of the bell mouth 12.
  • the second electric component box 59 is inserted into a wedge-shaped space in a plan view drawn by two adjacent cylindrical portions 43. Such an arrangement of the second electric component box 59 enables efficient use of the space in the housing 3 while suppressing unnecessary expansion of the non-ventilated space 58.
  • the support portion 71 is provided in the central portion of the housing 3 of the center pillar 23C in the depth direction.
  • the support portion 71 includes a right support piece 71R, a center support piece 71C, and a left support piece 71L. These support pieces 71R, 71C, 71L are the right support piece 71R, the center support piece 71C, the left support piece 71L, the right support piece 71R, the center support piece 71C, the left support piece 71L, ... They are lined up regularly.
  • the right support piece 71R and the center support piece 71C support the lower end of the reinforcing rib 49 of the bottom plate portion 46 of the bell mouth 12R.
  • the left support piece 71L and the center support piece 71C support the lower end of the reinforcing rib 49 of the bottom plate portion 46 of the bell mouth 12L.
  • the seams of the bottom plate portions 46 of the two bell mouths 12 have a gap. This gap drains moisture that enters the non-ventilated space 58 from the seam 41 of the two bell mouths 12 and the gap between the bell mouth 12 and the housing 3 to the machine room 7 of the housing 3.
  • the outdoor unit 1 has substantially the same shape, and a state in which one of the bell mouths 12 is rotated 180 degrees around the rotation center line of the blower 6 with respect to the other bell mouth 12.
  • 2 partitions the two ventilation passages 42 in which the two blowers 6 are arranged so as to face each other, and the non-ventilation space 58 partitioned on the outside of the two ventilation passages 42 and the inner surface of the housing 3.
  • It includes one bell mouth 12 and a second electrical component box 59 arranged in a non-ventilated space 58.
  • Each bellmouth 12 comprises a gutter 61 located beneath the seam 41 of the two bellmouths 12.
  • the non-ventilation space 58 is defined inside the housing 3 and outside the air passage in the outdoor unit 1 through which the air exchanged by the heat exchanger 4 is circulated.
  • the second electric component box 59 of the outdoor unit 1 is arranged in this non-ventilated space 58.
  • each bell mouth 12 of the outdoor unit 1 is provided with a gutter 61 that receives moisture entering the non-ventilated space 58 from the seam 41 of the two bell mouths 12. Therefore, the outdoor unit 1 can prevent water from dripping into the second electric component box 59 and can more reliably maintain the soundness of the second electric component box 59.
  • the bell mouth 12 of the outdoor unit 1 has a lid portion 62 extending flushwise from the top surface 12a and covering directly above the gutter 61 of the bell mouth 12 to be connected, and a lid of the bell mouth 12 to be connected.
  • a recess 63 for accommodating the portion 62 flush with the top surface 12a of the bell mouth 12 is provided. Therefore, the outdoor unit 1 can more reliably prevent moisture from reaching the second electric component box 59, and can more reliably maintain the soundness of the second electric component box 59.
  • the second electric component box 59 of the outdoor unit 1 is arranged directly below the gutter 61. Therefore, the outdoor unit 1 can further reliably maintain the soundness of the second electric component box 59 by keeping the moisture entering the non-ventilated space 58 away from the second electric component box 59.
  • the soundness of the second electric component box 59 is more reliably maintained by preventing moisture, for example, rainwater from reaching the second electric component box 59. can.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Other Air-Conditioning Systems (AREA)
PCT/JP2020/035803 2020-09-23 2020-09-23 空気調和機の室外機 WO2022064561A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN202080105239.9A CN116134272B (zh) 2020-09-23 2020-09-23 空调机的室外机
JP2022551466A JP7423812B2 (ja) 2020-09-23 2020-09-23 空気調和機の室外機
PCT/JP2020/035803 WO2022064561A1 (ja) 2020-09-23 2020-09-23 空気調和機の室外機

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