WO2020202495A1 - Unité extérieure pour un dispositif de climatisation - Google Patents

Unité extérieure pour un dispositif de climatisation Download PDF

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Publication number
WO2020202495A1
WO2020202495A1 PCT/JP2019/014784 JP2019014784W WO2020202495A1 WO 2020202495 A1 WO2020202495 A1 WO 2020202495A1 JP 2019014784 W JP2019014784 W JP 2019014784W WO 2020202495 A1 WO2020202495 A1 WO 2020202495A1
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WO
WIPO (PCT)
Prior art keywords
bottom plate
outdoor unit
housing
cut
compressor
Prior art date
Application number
PCT/JP2019/014784
Other languages
English (en)
Japanese (ja)
Inventor
早紀 渡邉
瑞朗 酒井
野花 坂邊
渉子 津村
優也 秦
嘉一 村上
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 JP2021511851A priority Critical patent/JP7019097B2/ja
Priority to PCT/JP2019/014784 priority patent/WO2020202495A1/fr
Publication of WO2020202495A1 publication Critical patent/WO2020202495A1/fr

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Classifications

    • 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
    • F24F1/08—Compressors specially adapted for separate outdoor units
    • F24F1/12—Vibration or noise prevention 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
    • F24F1/40—Vibration or noise prevention at outdoor units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22—Means for preventing condensation or evacuating condensate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise

Definitions

  • the present invention relates to an outdoor unit of an air conditioner constituting a refrigeration cycle device.
  • the outdoor unit of an air conditioner has a drain hole for drainage formed on the bottom plate of the outdoor unit for the purpose of draining the defrosted water flowing down from the heat exchanger or draining the rainwater that has entered the outdoor unit.
  • a drain hole for drainage formed on the bottom plate of the outdoor unit for the purpose of draining the defrosted water flowing down from the heat exchanger or draining the rainwater that has entered the outdoor unit.
  • a drain hole is formed by cutting up the bottom plate below the heat exchanger.
  • the space of the housing of the outdoor unit is separated by a partition plate into a blower room in which a heat exchanger and a blower are housed and a machine room in which a compressor is housed. ..
  • a drain hole is formed only in the blower room in which the heat exchanger is housed, and no drain hole is formed in the machine room.
  • the machine room of the outdoor unit contains a compressor that emits noise based on the operation
  • the outdoor unit of the air conditioner of Patent Document 1 has a drain hole from the compressor when the machine room is provided with a drain hole. No measures have been proposed to prevent the generated noise from leaking from the drain holes to the outside of the housing.
  • the present invention is for solving the above-mentioned problems, and is generated from a compressor that can drain condensed water, rainwater, etc. from the machine room to the outside of the housing and is a main sound source of the machine room.
  • An object of the present invention is to provide an outdoor unit of an air conditioner that suppresses noise from leaking to the outside of a housing.
  • the outdoor unit of the air conditioner according to the present invention has a bottom plate in which a heat exchanger, a blower, and a compressor are arranged, and is provided in a housing constituting the outer shell of the outdoor unit and inside the housing.
  • a partition plate that separates the space inside the housing from the blower room that houses the heat exchanger and the blower and the machine room that houses the compressor is provided.
  • the bottom plate is the inside of the housing.
  • a drain hole portion that communicates with the outside is formed, and the bottom plate has a cut-up piece cut up from the drain hole portion so as to cover a part above the drain hole portion. The piece is formed so as to face the compressor.
  • a drain hole portion for communicating the inside and the outside of a housing is formed on a bottom plate, so that dew condensation water, rainwater, etc. can be collected. Drainage can be done from the machine room to the outside of the housing.
  • the bottom plate has a cut-up piece cut up from the drainage hole so as to cover a part above the drainage hole, and the cut-up piece faces the compressor. Is formed in. Therefore, even if a drainage hole is formed in the machine room, the outdoor unit covers a part of the upper part of the drainage hole and reflects the sound emitted from the compressor by the cut-up piece facing the compressor. It is possible to prevent the noise generated from the compressor from leaking to the outside of the housing.
  • FIG. 5 is a cross-sectional view taken along the line AA of the bottom plate of FIG.
  • FIG. 5 is a conceptual diagram which shows the relationship between a compressor and a cut-up piece. It is an enlarged view of the cut-up piece and the drainage hole part of FIG.
  • a conceptual diagram of a cut-up piece of a modified example is shown.
  • FIG. 1 is a refrigerant circuit diagram showing a configuration of a refrigeration cycle device 150 provided with an outdoor unit 100 of an air conditioner according to an embodiment.
  • the refrigeration cycle device 150 provided with the outdoor unit 100 of the air conditioner will be described with reference to FIG.
  • the arrow indicated by the dotted line indicates the direction in which the refrigerant flows in the refrigerant circuit 110 during the cooling operation
  • the arrow indicated by the solid line indicates the direction in which the refrigerant flows during the heating operation. ..
  • the air conditioner is illustrated as the refrigerating cycle device 150, but the refrigerating cycle device 150 can be used for refrigerating a refrigerator or freezer, a vending machine, an air conditioner, a refrigerating device, a water heater, or the like. Used for applications or air conditioning applications.
  • the illustrated refrigerant circuit 110 is an example, and the configuration of circuit elements and the like is not limited to the contents described in the embodiment, and can be appropriately changed within the scope of the technique of the present invention.
  • the refrigerating cycle device 150 has a refrigerant circuit 110 in which a compressor 101, a flow path switching device 102, an indoor heat exchanger 103, a decompression device 104, and an outdoor heat exchanger 105 are connected in a ring shape via a refrigerant pipe. ..
  • the refrigeration cycle device 150 includes an outdoor unit 100 and an indoor unit 200.
  • the outdoor unit 100 includes a compressor 101, a flow path switching device 102, an outdoor heat exchanger 105 and a decompression device 104, and an outdoor blower 108 that supplies outdoor air to the outdoor heat exchanger 105.
  • the indoor unit 200 includes an indoor heat exchanger 103 and an indoor blower 109 that supplies air to the indoor heat exchanger 103.
  • the outdoor unit 100 and the indoor unit 200 are connected to each other via two extension pipes 111 and 112 which are a part of the refrigerant pipe.
  • the compressor 101 is a fluid machine that compresses and discharges the sucked refrigerant.
  • the flow path switching device 102 is, for example, a four-way valve, and is a device that switches the flow path of the refrigerant between the cooling operation and the heating operation by controlling the control device (not shown).
  • the indoor heat exchanger 103 is a heat exchanger that exchanges heat between the refrigerant circulating inside and the indoor air supplied by the indoor blower 109.
  • the indoor heat exchanger 103 functions as a condenser during the heating operation and as an evaporator during the cooling operation.
  • the pressure reducing device 104 is, for example, an expansion valve, which is a device for reducing the pressure of the refrigerant.
  • an electronic expansion valve whose opening degree is adjusted by the control of the control device can be used.
  • the outdoor heat exchanger 105 is a heat exchanger that exchanges heat between the refrigerant circulating inside and the air supplied by the outdoor blower 108.
  • the outdoor heat exchanger 105 functions as an evaporator during the heating operation and as a condenser during the cooling operation.
  • the low-pressure gas-liquid two-phase refrigerant flows into the outdoor heat exchanger 105 and evaporates by heat exchange with the air supplied by the outdoor blower 108.
  • the evaporated refrigerant becomes a low-pressure gas state and is sucked into the compressor 101.
  • the refrigerant flowing through the refrigerant circuit 110 flows in the opposite direction to that during the heating operation. That is, during the cooling operation of the refrigeration cycle device 150, the high-pressure and high-temperature gas-state refrigerant discharged from the compressor 101 flows into the outdoor heat exchanger 105 via the flow path switching device 102 and is supplied by the outdoor blower 108. It exchanges heat with the air and condenses.
  • the condensed refrigerant is in a high-pressure liquid state, flows out of the outdoor heat exchanger 105, and is in a low-pressure gas-liquid two-phase state by the decompression device 104.
  • the low-pressure gas-liquid two-phase refrigerant flows into the indoor heat exchanger 103 and evaporates by heat exchange with the air supplied by the indoor blower 109.
  • the evaporated refrigerant becomes a low-pressure gas state and is sucked into the compressor 101.
  • FIG. 2 is a front perspective view of the outdoor unit 100 according to the embodiment.
  • FIG. 3 is an exploded perspective view of a part of the outdoor unit 100 according to the embodiment.
  • FIG. 4 is a top view of the outdoor unit 100 according to the embodiment with the top panel 3 removed. In FIG. 4, a part of the motor support member 14 is omitted in order to clarify the internal structure of the housing 50.
  • the outdoor unit 100 of the air conditioner will be described with reference to FIGS. 2 to 4.
  • the X-axis shown in the following drawings including FIG. 2 indicates the left-right direction of the outdoor unit 100
  • the Y-axis indicates the front-rear direction of the outdoor unit 100
  • the Z-axis indicates the vertical direction of the outdoor unit 100. More specifically, when the outdoor unit 100 is viewed from the front, the X1 side is the left side, the X2 side is the right side, the Y1 side is the front side on the Y axis, the Y2 side is the rear side, the Z1 side is the upper side on the Z axis, and the Z2 side is the lower side.
  • the outdoor unit 100 will be described as the side.
  • viewing the outdoor unit 100 from the front means a state in which the outdoor unit 100 is viewed from the downstream side where air is blown out from the housing 50 in the flow direction of the air flowing in the housing 50.
  • positional relationship between the constituent members for example, the vertical relationship, etc. in the specification is, in principle, the one when the outdoor unit 100 is installed in a usable state.
  • the outdoor unit 100 has a housing 50 configured in a substantially rectangular parallelepiped shape.
  • the housing 50 of the outdoor unit 100 is made of sheet metal and constitutes the outer shell of the outdoor unit 100.
  • the housing 50 of the outdoor unit 100 has an outer panel 1, a side panel 2, a top panel 3, and a bottom plate 4.
  • a flange is provided on the upper part of the outer panel 1 and the side panel 2, and the top panel 3 is attached to the flange.
  • the bottom plate 4 is also provided with a flange, and the outer panel 1 and the side panel 2 are fixed to the flange by bolts or the like, and the outer panel 1 and the side panel 2 are assembled on the bottom plate 4.
  • the outer panel 1 is a sheet metal panel.
  • the outer panel 1 has a shape in which the front surface portion 11, the side surface portion 12, and the back surface portion 13 are integrally formed.
  • the front surface portion 11 constitutes a side wall portion on the front side of the housing 50
  • the side surface portion 12 constitutes the side wall portion on the side surface side of the housing 50
  • the back surface portion 13 constitutes the side wall portion on the back surface side of the housing 50.
  • the outer panel 1 is formed by being bent by a horizontally long front portion 11 and a vertically long side surface portion 12 so as to have an L shape when viewed from above the outdoor unit 100, that is, from the arrangement side of the top panel 3. There is.
  • the front surface portion 11 and the side surface portion 12 are integrally formed, but the outer shell panel 1 is not limited to this configuration, and the outer shell panel 1 has the front surface portion 11 and the side surface portion 12. It may be composed of a plurality of sheet metal panels separately from the above.
  • the front portion 11 constitutes a side wall of the housing 50 on the side where air is blown out.
  • a circular outlet 8 is formed on the front surface portion 11.
  • the air sucked into the housing 50 from the opening 7 on the back side or the opening on the side surface side by the outdoor blower 108 is blown out of the housing 50 from the air outlet 8.
  • a rectangular fan guard 6 that covers the air outlet 8 and protects the propeller fan 108a of the outdoor blower 108 is attached to the front portion 11 of the outer panel 1.
  • the number of members constituting the front surface portion 11 may be one or a plurality.
  • the members covering the blower chamber 31 and the machine chamber 32 which will be described later, may be separate members.
  • the side surface portion 12 constitutes a side wall extending in the front-rear direction (Y-axis direction) of the housing 50.
  • the side surface portion 12 may be used.
  • An opening for taking in outdoor air into the housing 50 is formed.
  • the number of members constituting the side surface portion 12 may be one or a plurality.
  • the back portion 13 constitutes a part of the back side of the housing 50 and covers a part of the back side of the outdoor heat exchanger 105.
  • the back surface portion 13 is arranged at a position facing a part of the front surface portion 11 in the front-rear direction (Y-axis direction) of the housing 50.
  • the outer panel 1 has a shape in which the front surface portion 11, the side surface portion 12, and the back surface portion 13 are integrally formed.
  • the outer panel 1 is formed by being bent by the side surface portion 12 and the back surface portion 13 so as to have an L shape when viewed from above the outdoor unit 100, that is, from the arrangement side of the top panel 3.
  • the back surface portion 13 is formed so as to extend from the side surface portion 12 to a position that covers a part of the back surface side of the outdoor heat exchanger 105.
  • the outer panel 1 is formed integrally by bending the side surface portion 12 and the back surface portion 13, but the outer shell panel 1 is not limited to the configuration, and the side surface portion 12 and the back surface portion 13 are together. May be composed of a plurality of sheet metal panels. Further, the number of members constituting the back surface portion 13 may be one or a plurality.
  • the back surface 13 constitutes a part of the back side of the housing 50 and covers a part of the outdoor heat exchanger 105, so that the back side of the housing 50 has an opening for exposing the outdoor heat exchanger 105.
  • Part 7 is formed. More specifically, the opening 7 is formed by the edges of the back surface 13, the top panel 3, the side panel 2, and the bottom plate 4.
  • the opening 7 is an air suction port formed in the housing 50, and air flows from the outside to the inside of the housing 50 through the opening 7 by the operation of the outdoor blower 108.
  • the side panel 2 is a sheet metal panel that is bent so as to have an L shape when viewed from the arrangement side of the top panel 3.
  • the side panel 2 has a vertically long second side surface portion 2a facing the side surface portion 12 and a second back surface portion 2b facing a part of the front surface portion 11.
  • the second side surface portion 2a constitutes a side wall portion on the side surface side of the housing 50
  • the second back surface portion 2b constitutes a part of the side wall portion on the back surface side of the housing 50.
  • the second back surface portion 2b and the back surface portion 13 form a side wall portion on the back surface side of the housing 50.
  • the second back surface portion 2b and the back surface portion 13 are separately formed, but the second back surface portion 2b and the back surface portion 13 are integrally formed on the back surface side of the housing 50.
  • a side wall portion may be configured.
  • the second side surface portion 2a and the second back surface portion 2b are integrally formed, but the side surface panel 2 is not limited to this configuration, and the second side surface portion 2a and the second back surface portion 2a are formed. It may be composed of two sheet metal panels separately from 2b. Further, the second side surface portion 2a and the second back surface portion 2b may each be composed of a plurality of members.
  • the second side surface portion 2a may be formed as a member divided in the front-rear direction of the housing 50, and the front member may be integrally formed with the front surface portion 11.
  • the top panel 3 is a sheet metal panel that constitutes the top plate of the housing 50 and covers the upper part of the outdoor unit 100.
  • the top panel 3 is attached to the upper edge of the outer panel 1 and the side panel 2.
  • the bottom plate 4 faces the top panel 3 in the housing 50 and constitutes the bottom wall of the housing 50. Inside the housing 50, at least the outdoor heat exchanger 105, the outdoor blower 108, and the compressor 101 are arranged on the bottom plate 4. An outer panel 1 and a side panel 2 are attached to the bottom plate 4, and a plurality of legs 9 are provided on the lower surface of the bottom plate 4. The legs 9 serve as a base for fixing the outdoor unit 100 to the installation location. The detailed configuration of the bottom plate 4 will be described later.
  • the outdoor unit 100 has a partition plate 17, an outdoor heat exchanger 105, an outdoor blower 108, a motor support member 14, and a compressor 101 inside the housing 50.
  • the partition plate 17 is provided inside the housing 50, and is a partition wall that separates the space inside the housing 50 of the outdoor unit 100 into the blower room 31 and the machine room 32.
  • the partition plate 17 is a plate-shaped member, and is formed by bending a sheet metal or the like, for example.
  • the partition plate 17 is arranged on the bottom plate 4 in the housing 50, is provided so as to extend upward (Z-axis direction) from the bottom plate 4, and extends in the front-rear direction (Y-axis direction) of the bottom plate 4. It is provided in.
  • the blower room 31 is a space surrounded by an outer panel 1, a top panel 3, a bottom plate 4, and a partition plate 17.
  • the blower room 31 takes in outdoor air from the outside of the outdoor unit 100 through a suction port such as an opening 7, and discharges the air inside the outdoor unit 100 to the outside of the outdoor unit 100 through the air outlet 8. It is configured.
  • the machine room 32 is a space surrounded by the front portion 11, the side panel 2, the top panel 3, the bottom plate 4, and the partition plate 17 of the outer panel 1.
  • the outdoor heat exchanger 105 and the outdoor blower 108 arranged so as to face the outdoor heat exchanger 105 are housed in the space on the blower room 31 side in the housing 50, and the machine in the housing 50.
  • the compressor 101 and the refrigerant pipe 16 are housed in the space on the chamber 32 side.
  • the refrigerant pipe 16 is connected to the compressor 101 and constitutes a part of the refrigerant circuit 110.
  • the outdoor heat exchanger 105 exchanges heat between the refrigerant flowing inside and the outside air, and functions as an evaporator during the heating operation and as a condenser during the cooling operation.
  • the outdoor heat exchanger 105 can be configured as, for example, a fin-and-tube heat exchanger.
  • the outdoor heat exchanger 105 is formed in an L shape when viewed in the direction perpendicular to the bottom plate 4.
  • the outdoor heat exchanger 105 is arranged between the housing 50 and the outdoor blower 108. A part of the outdoor heat exchanger 105 is arranged inside the outdoor unit 100 so as to face the opening 7, and is exposed to the outside through the opening 7. Although the case where the outdoor heat exchanger 105 is formed in an L shape is illustrated, the outdoor heat exchanger 105 is formed in another shape when viewed in the direction perpendicular to the bottom plate 4. It may be one formed in an I shape, or may be formed in a U shape.
  • the outdoor blower 108 creates an air circulation for efficient heat exchange in the outdoor heat exchanger 105.
  • the outdoor blower 108 creates a negative pressure between the outdoor heat exchanger 105 and the propeller fan 108a, introduces outside air into the housing 50 from the back side or the side surface side of the housing 50, and enters the inside of the outdoor unit 100.
  • the introduced outside air is discharged from the front side of the outdoor unit 100 toward the outside of the housing 50.
  • the outdoor unit 100 is an outdoor unit of a two-fan type air conditioner equipped with two outdoor blowers 108 and an outdoor heat exchanger 105 behind the outdoor blower 108 so as to surround the outdoor blower 108.
  • the outdoor unit 100 includes two outdoor blowers 108, the structure of the outdoor unit 100 is not limited to the configuration, and for example, one outdoor blower 108 may be provided. You may prepare for the above.
  • the motor support member 14 is a columnar member provided inside the housing 50 so as to extend in the vertical direction between the bottom plate 4 and the top panel 3.
  • the outdoor blower 108 is fixed and supported by the motor support member 14.
  • the motor support member 14 is fixed to the bottom plate 4 by fastening screws or the like.
  • the compressor 101 is a device that sucks in a refrigerant in a low temperature and low pressure state, compresses the sucked refrigerant into a refrigerant in a high temperature and high pressure state, and discharges the refrigerant.
  • the compressor 101 is, for example, a rotary type, scroll type or vane type compressor.
  • the compressor 101 may be, for example, a compressor provided with an inverter capable of controlling the capacity.
  • the compressor 101 is located in a machine room 32 separated by a partition plate 17 and a blower room 31 provided with the above-mentioned outdoor blower 108 and an outdoor heat exchanger 105, and hot refrigerant is supplied through a refrigerant pipe 16 also in the machine room 32. It plays a role of discharging.
  • FIG. 5 is a top view of the bottom plate 4 of the machine room 32 of the outdoor unit 100 according to the embodiment.
  • FIG. 6 is a sectional view taken along line AA of the bottom plate 4 of FIG. The circle shown by the dotted line in FIG. 5 represents the installation position of the compressor 101. A detailed configuration of the bottom plate 4 will be described with reference to FIGS. 5 and 6.
  • the bottom plate 4 on the machine room 32 side has a bottom plate lower portion 4b and a bottom plate upper portion 4a forming bottom surfaces having different heights in the vertical direction.
  • the bottom plate upper part 4a and the bottom plate lower part 4b have a step, and the bottom plate upper part 4a is located above the bottom plate lower part 4b.
  • the bottom plate lower portion 4b is a portion located below the bottom plate upper portion 4a and formed in a concave shape with respect to the bottom plate upper portion 4a.
  • the bottom plate 4 has an inclined portion 4c that forms an inclined surface between the bottom plate upper portion 4a and the bottom plate lower portion 4b.
  • the inclined portion 4c forms an inclined surface inclined with respect to the vertical direction.
  • the inclined portion 4c is formed along the edge portion of the bottom plate upper portion 4a and the edge portion of the bottom plate lower portion 4b. Since the bottom plate 4 has the inclined portion 4c, the liquid that has fallen on the bottom plate upper portion 4a is guided to the bottom plate lower portion 4b along the inclined portion 4c.
  • the compressor 101 is arranged above the bottom plate upper portion 4a of the bottom plate 4.
  • the bottom plate lower portion 4b of the bottom plate 4 has a drain hole portion 40.
  • the drainage hole portion 40 forms a through hole in the bottom plate lower portion 4b for communicating the outside and the inside of the housing 50.
  • the drainage hole portion 40 is formed in the lower portion 4b of the bottom plate, and is formed below the refrigerant pipe 16.
  • An outdoor unit that does not have a drain hole formed in the bottom plate of the machine room can discharge water from the machine room when water leaks into the machine room due to dew condensation water from the refrigerant piping or rainwater. Can not.
  • the machine room 32 is formed by forming a drain hole portion 40 in the housing 50 for communicating the outside and the inside of the housing 50 with the bottom plate 4 of the machine room 32. Liquids such as dew condensation water can be discharged from.
  • the drainage hole portion 40 is formed by cutting up the wall of the bottom plate lower portion 4b.
  • the wall cut up from the bottom plate lower portion 4b covers a part of the upper part of the drainage hole portion 40 as a cut-up piece 41. That is, the bottom plate 4 has a cut-up piece 41 cut up from the drainage hole portion 40 so as to cover a part above the drainage hole portion 40.
  • a part of the edge portion of the cut-up piece 41 is connected to the bottom plate lower portion 4b, and the edge portion other than the portion connected to the bottom plate lower portion 4b is separated from the bottom plate lower portion 4b.
  • the cut-up piece 41 is formed in a rectangular plate shape, one of the four sides is connected to the bottom plate lower portion 4b, and the other three sides are separated from the bottom plate lower portion 4b.
  • the shape of the cut-up piece 41 is not limited to a rectangle.
  • the shape of the cut-up piece 41 may be another shape such as an oval shape or another polygonal shape.
  • the shape of the drainage hole portion 40 is formed in a rectangular shape corresponding to the shape of the cut-up piece 41. However, the shape of the drainage hole portion 40 can be formed into various shapes corresponding to the shape of the cut-up piece 41.
  • FIG. 7 is a conceptual diagram showing the relationship between the compressor 101 and the cut-up piece 41.
  • FIG. 8 is an enlarged view of the cut-up piece 41 and the drainage hole portion 40 of FIG.
  • the solid arrow SD shown in FIG. 7 indicates the direction in which the sound emitted from the compressor 101 is directed, and the dotted arrow FL indicates the flow of the liquid drained from the bottom plate 4 to the outside of the housing 50. It was done.
  • the cut-up piece 41 is formed in a state of rising from the edge portion of the drainage hole portion 40.
  • the cut-up piece 41 is inclined with respect to the plate surface of the bottom plate 4.
  • the cut-up piece 41 is formed so as to face the compressor 101. More specifically, the upper surface portion 41a side of the cut-up piece 41 is cut up so as to face the compressor 101.
  • the upper surface portion 41a is the surface of the bottom plate 4 on the machine room 32 side
  • the lower surface portion 41b which is the surface opposite to the upper surface portion 41a, is the casing of the bottom plate 4. This is the outer surface of the body 50.
  • the cut-up piece 41 is formed so as to face the compressor 101.
  • the cut-up piece 41 is arranged between the compressor 101 and the drain hole portion 40. That is, the outdoor unit 100 is provided with a cut-up piece 41 covering the drain hole portion 40 in the bottom plate lower portion 4b of the bottom plate 4 in a direction of blocking the sound emitted from the compressor 101 which is a noise source.
  • the cut-up piece 41 reflects the sound emitted from the compressor 101, as shown by the solid arrow SD in FIG. Therefore, the outdoor unit 100 of the air conditioner suppresses the sound emitted from the compressor 101 from leaking directly from the inside of the housing 50 to the outside through the drain hole portion 40 by the cut-up piece 41.
  • the sound absorbing material 45 is arranged on the upper surface portion 41a of the cut-up piece 41 facing the compressor 101.
  • the sound absorbing material 45 is attached to the upper surface portion 41a of the cut-up piece 41.
  • the sound absorbing material 45 is formed of, for example, a porous material.
  • the sound absorbing material 45 is not limited to the porous material, and a well-known material used for sound absorbing can be used.
  • the outdoor unit 100 of the air conditioner is provided with a flat plate-shaped cut-up piece 41 inclined with respect to the bottom plate 4, and a sound absorbing material 45 is attached to the upper surface portion 41a thereof.
  • FIG. 9 shows a conceptual diagram of the cut-up piece 41 of the modified example.
  • the cut-up piece 41 of the modified example is bent at the side wall portion 42a in a state of rising from the edge portion of the drainage hole portion 40 and the tip of the side wall portion 42a, and is an upper wall covering the drainage hole portion 40 above the drainage hole portion 40. It has a part 42b.
  • the side wall portion 42a is formed so as to stand up from the bottom plate 4.
  • the upper wall portion 42b is formed integrally with the side wall portion 42a and is arranged above the drainage hole portion 40.
  • the sound absorbing material 45 is arranged on the side wall portion 42a and the upper wall portion 42b on the machine room 32 side surface. That is, as shown in FIG.
  • the cut-up piece 41 of the modified example has the side wall portion 42a and the upper wall portion 42b, so that a part of the drainage hole portion 40 is projected inside the housing 50.
  • a sound absorbing material 45 is attached on the cover.
  • the cut-up piece 41 of the modified example is more difficult to process than being formed in a flat plate shape, but the cut-up piece 41 can cover the upper part of the drainage hole portion 40 more than the cut-up piece 41 is formed in a flat plate shape. Sound insulation can be improved as compared with the case where 41 is formed in a flat plate shape.
  • the outdoor blower 108 In the driven state of the outdoor unit 100, the outdoor blower 108 is driven in order to improve the efficiency of heat exchange between the refrigerant flowing in the outdoor heat exchanger 105 and the outdoor air.
  • the outdoor blower 108 creates a negative pressure between the outdoor heat exchanger 105 and the propeller fan 108a, and introduces outside air into the housing 50 from the back side or the side surface side of the housing 50.
  • the outdoor blower 108 uses the air introduced inside the housing 50 for heat exchange as blown air from the outlet 8 formed on the front side (Y1 side) of the housing 50 to the outside of the housing 50. Discharge toward. At this time, the air flowing into the housing 50 exchanges heat with the refrigerant flowing inside the outdoor heat exchanger 105.
  • the outdoor unit 100 of the air conditioner has a drain hole portion 40 formed in the bottom plate 4 for communicating the inside and the outside of the housing 50, so that condensed water, rainwater, or the like can be machined. Drainage can be performed from the room 32 to the outside of the housing 50.
  • the bottom plate 4 has a cut-up piece 41 cut up from the drainage hole portion 40 so as to cover a part above the drainage hole portion 40, and the cut-up piece 41 is It is formed so as to face the compressor 101.
  • the outdoor unit 100 can cover a part of the upper part of the drain hole portion 40, and can reflect the sound emitted from the compressor 101 by the cut-up piece 41 facing the compressor 101. Therefore, even if the drain hole portion 40 is formed in the machine room 32, the outdoor unit 100 can suppress the noise generated from the compressor 101 from leaking to the outside of the housing 50 through the drain hole portion 40. ..
  • the bottom plate 4 is formed with a drain hole portion 40 for communicating the inside and the outside of the housing 50, so that dew condensation water, rainwater, etc. Can be drained from the machine room 32 to the outside of the housing 50.
  • the bottom plate or piping may be corroded. Since the drain hole portion 40 is formed in the outdoor unit 100 of the air conditioner, condensed water, rainwater, or the like can be drained from the machine room 32 to the outside of the housing 50. Therefore, the outdoor unit 100 of the air conditioner can suppress the corrosion of the bottom plate 4, the refrigerant pipe 16, and the like.
  • the drainage hole portion 40 is formed in the bottom plate lower portion 4b located below the bottom plate upper portion 4a. Therefore, the outdoor unit 100 can easily drain the liquid collected under the housing 50. Further, the step formed by the bottom plate upper portion 4a and the bottom plate lower portion 4b prevents the sound emitted from the compressor 101 from directly heading toward the drain hole portion 40. Therefore, the outdoor unit 100 can suppress the noise generated from the compressor 101 from leaking to the outside of the housing 50 through the drain hole portion 40.
  • the bottom plate 4 has an inclined portion 4c inclined with respect to the vertical direction between the bottom plate lower portion 4b and the bottom plate upper portion 4a. Therefore, the outdoor unit 100 can easily collect the liquid in the machine room 32 in the bottom plate lower portion 4b in which the drain hole portion 40 is formed by utilizing the slope of the inclined portion 4c.
  • the outdoor unit 100 can drain the liquid from the lower surface portion 41b side of the cut-up piece 41 through the drain hole portion 40, and the sound emitted by the compressor 101 is reflected on the upper surface portion 41a side of the cut-up piece 41. can do.
  • the cut-up piece 41 has a side wall portion 42a rising from the bottom plate 4 and an upper wall portion 42b formed integrally with the side wall portion 42a and arranged above the drainage hole portion 40.
  • the outdoor unit 100 having this configuration can cover the upper part of the drain hole portion 40 rather than the cut-up piece 41 being formed in a flat plate shape, and has better sound insulation than the cut-up piece 41 being formed in a flat plate shape. Can be improved.
  • the sound absorbing material 45 is arranged on the surface facing the compressor 101.
  • the machine room 32 to the housing 50 can be more efficiently used than when the sound absorbing material 45 is not used. Sound leaking to the outside can be suppressed.
  • the sound absorbing material 45 is arranged on the surface of the side wall portion 42a and the upper wall portion 42b on the machine room 32 side.
  • the outdoor unit 100 having this configuration can cover the upper part of the drain hole portion 40 rather than the cut-up piece 41 being formed in a flat plate shape, and has better sound insulation than the cut-up piece 41 being formed in a flat plate shape. Can be improved.
  • the outdoor unit 100 of the air conditioner since the sound absorbing material 45 is arranged on the surface of the cut-up piece 41 on the sound source side, the housing from the machine room 32 is more efficient than the case where the sound absorbing material 45 is not used. The sound leaking to the outside of 50 can be suppressed.
  • drain hole portion 40 is formed below the refrigerant pipe 16 connected to the compressor 101. Therefore, the outdoor unit 100 can easily drain the dew condensation water generated from the refrigerant pipe 16.
  • the refrigeration cycle device 150 described above includes the outdoor unit 100 of the air conditioner according to the embodiment. Therefore, in the refrigeration cycle device 150, the same effect as that of the outdoor unit 100 of the air conditioner according to the embodiment can be obtained.
  • the configuration shown in the above embodiments is an example, and can be combined with another known technique, and a part of the configuration is omitted or modified without departing from the gist of the present invention. It is also possible to do.
  • one drain hole portion 40 is formed in the bottom plate 4, but a plurality of drain hole portions 40 may be formed in the bottom plate 4.
  • one cut-up piece 41 is formed on the bottom plate 4, but a plurality of cut-up pieces 41 may be formed on the bottom plate 4.

Landscapes

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

Abstract

Selon la présente invention, une unité extérieure pour un dispositif de climatisation comprend : un boîtier ayant une plaque de fond sur laquelle sont disposés un échangeur de chaleur, une soufflante et un compresseur, le boîtier constituant le contour externe de l'unité extérieure ; et une plaque de séparation disposée à l'intérieur du boîtier, la plaque de séparation divisant l'intérieur du boîtier en une chambre de soufflante dans laquelle l'échangeur de chaleur et la soufflante sont logés et en une chambre de machine dans laquelle le compresseur est logé. Dans la chambre de machine, des trous d'évacuation d'eau, par le biais desquels l'intérieur et l'extérieur du boîtier communiquent, sont formés dans la plaque de fond, et la plaque de fond a des pièces découpées et redressées qui sont découpées et redressées depuis les trous d'évacuation d'eau afin de recouvrir par le dessus une partie des trous d'évacuation d'eau. Les pièces découpées et redressées sont formées pour s'opposer au compresseur.
PCT/JP2019/014784 2019-04-03 2019-04-03 Unité extérieure pour un dispositif de climatisation WO2020202495A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2021511851A JP7019097B2 (ja) 2019-04-03 2019-04-03 空気調和機の室外機
PCT/JP2019/014784 WO2020202495A1 (fr) 2019-04-03 2019-04-03 Unité extérieure pour un dispositif de climatisation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2019/014784 WO2020202495A1 (fr) 2019-04-03 2019-04-03 Unité extérieure pour un dispositif de climatisation

Publications (1)

Publication Number Publication Date
WO2020202495A1 true WO2020202495A1 (fr) 2020-10-08

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PCT/JP2019/014784 WO2020202495A1 (fr) 2019-04-03 2019-04-03 Unité extérieure pour un dispositif de climatisation

Country Status (2)

Country Link
JP (1) JP7019097B2 (fr)
WO (1) WO2020202495A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5386951U (fr) * 1976-12-20 1978-07-17
JPH09145095A (ja) * 1995-11-20 1997-06-06 Fujitsu General Ltd 空気調和機の室外機
JPH09325832A (ja) * 1996-06-04 1997-12-16 Pfu Ltd 通風穴構造
JP2003176935A (ja) * 2001-10-05 2003-06-27 Lg Electronics Inc 大型空気調和機の室外機用騒音低減構造
JP2013068386A (ja) * 2011-09-26 2013-04-18 Daikin Industries Ltd 室外機
WO2017094198A1 (fr) * 2015-12-04 2017-06-08 三菱電機株式会社 Machine extérieure

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5386951B2 (ja) 2008-11-28 2014-01-15 東レ株式会社 油剤塗布装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5386951U (fr) * 1976-12-20 1978-07-17
JPH09145095A (ja) * 1995-11-20 1997-06-06 Fujitsu General Ltd 空気調和機の室外機
JPH09325832A (ja) * 1996-06-04 1997-12-16 Pfu Ltd 通風穴構造
JP2003176935A (ja) * 2001-10-05 2003-06-27 Lg Electronics Inc 大型空気調和機の室外機用騒音低減構造
JP2013068386A (ja) * 2011-09-26 2013-04-18 Daikin Industries Ltd 室外機
WO2017094198A1 (fr) * 2015-12-04 2017-06-08 三菱電機株式会社 Machine extérieure

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JP7019097B2 (ja) 2022-02-14
JPWO2020202495A1 (ja) 2021-10-21

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