WO2023188106A1 - Unité extérieure de pompe à chaleur - Google Patents

Unité extérieure de pompe à chaleur Download PDF

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Publication number
WO2023188106A1
WO2023188106A1 PCT/JP2022/015983 JP2022015983W WO2023188106A1 WO 2023188106 A1 WO2023188106 A1 WO 2023188106A1 JP 2022015983 W JP2022015983 W JP 2022015983W WO 2023188106 A1 WO2023188106 A1 WO 2023188106A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat
housing
casing
blower
disposed inside
Prior art date
Application number
PCT/JP2022/015983
Other languages
English (en)
Japanese (ja)
Inventor
郁実 星野
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 JP2024510889A priority Critical patent/JPWO2023188106A1/ja
Priority to PCT/JP2022/015983 priority patent/WO2023188106A1/fr
Publication of WO2023188106A1 publication Critical patent/WO2023188106A1/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
    • F24F1/20—Electric components for separate outdoor units
    • F24F1/24—Cooling of electric components

Definitions

  • the present disclosure relates to a heat pump outdoor unit having an electrical component mounting body.
  • an outdoor unit having an electrical component storage box is known, for example, as described in Patent Document 1.
  • an inverter board for controlling the drive of a compressor or the like is housed in an electrical component storage box. Since the inverter board generates a large amount of heat when controlling the compressor, etc., there are measures to suppress the rise in temperature by attaching large heat dissipating components to the inverter board, or by connecting heat-generating components to the housing in a thermally conductive manner. There is.
  • the heat generating components are placed in the housing for thermal conduction in order to reduce costs and improve the flexibility of component layout. They are trying to make the heat dissipation parts smaller or eliminate them by bringing them into close contact with each other.
  • the present disclosure has been made in view of the above, and aims to provide a heat pump outdoor unit that can achieve high cooling performance.
  • a heat pump outdoor unit includes a housing, an air refrigerant heat exchanger placed inside the housing, and an air refrigerant heat exchanger placed inside the housing.
  • a compressor motor located inside the housing, an inverter board located inside the housing that drives the blower and the compressor motor, and electrical components external to the inverter board.
  • the plurality of electrical components include a heat generating electrical component that is held in a state where it can conduct heat to the heat dissipation component.
  • the inverter board has a heat-generating electrical component mounting body that is held in a state where it can conduct heat to the wall of the machine room, which is made up of a partition plate or a housing, through a member that has thermal conductivity and cushioning properties. installed.
  • the heat pump outdoor unit according to the present disclosure has the effect of being able to achieve high cooling performance.
  • a diagram showing a partial configuration of a heat pump outdoor unit according to an embodiment. A diagram showing a partial configuration of a heat pump outdoor unit of a first modified example according to the embodiment.
  • FIG. 1 is a first diagram showing the configuration of the heat pump outdoor unit 1 according to the embodiment when the inside of the heat pump outdoor unit 1 is viewed from above.
  • FIG. 2 is a second diagram showing the configuration of the heat pump outdoor unit 1 when the inside of the heat pump outdoor unit 1 according to the embodiment is viewed from above.
  • FIG. 2 shows the configuration of the heat pump outdoor unit 1 from which some components are removed from all the components shown in FIG.
  • FIG. 3 is a diagram showing the configuration of the heat pump outdoor unit 1 when the inside of the heat pump outdoor unit 1 according to the embodiment is viewed from the front.
  • FIG. 4 is a perspective view showing the inside of the heat pump outdoor unit 1 according to the embodiment. Each figure from FIG. 1 to FIG. 4 schematically shows a heat pump outdoor unit 1. As shown in FIG.
  • the heat pump outdoor unit 1 includes a casing 2, an air refrigerant heat exchanger 3 disposed inside the casing 2, a blower 4 disposed inside the casing 2, and an air refrigerant heat exchanger 3 disposed inside the casing 2. It has a compressor motor 5.
  • the heat pump outdoor unit 1 further includes an electrical component mounting body 6 disposed inside the housing 2. A plurality of electrical components are mounted on the electrical component mounting body 6, including an inverter board that drives the blower 4 and the compressor motor 5, and electrical components outside the inverter board.
  • the heat pump outdoor unit 1 further includes a partition plate 9 that is a member that is disposed inside the housing 2 and partitions a space inside the housing 2. The partition plate 9 forms a machine room 7 in which the compressor motor 5 and the electrical component mounting body 6 are housed, and a blower room 8 in which the air refrigerant heat exchanger 3 and the blower 4 are housed inside the housing 2.
  • FIG. 5 is a diagram showing a partial configuration of the heat pump outdoor unit 1 according to the embodiment.
  • FIG. 5 schematically shows a part of the structure of the heat pump outdoor unit 1.
  • the heat pump outdoor unit 1 further includes a heat dissipation component 10a attached to the partition plate 9 on the machine room 7 side.
  • the heat dissipation component 10a is a heat sink.
  • the plurality of electrical components described above include the heat generating electrical component 11 which is held in a state where it can conduct heat to the heat dissipation component 10a.
  • FIG. 5 also shows the inverter board 12 mounted on the electrical component mounting body 6.
  • the inverter board 12 has a heat-generating electrical component mounting body that is held in a state where it can conduct heat to the wall surface of the machine room 7 constituted by the partition plate 9a via a member 13b having thermal conductivity and buffering properties. 14a, 14b, 14c, and 14d are attached. When the back side of the wall of the machine room 7 is the blower room 8, there is also a configuration in which a heat dissipation component 10b is installed.
  • the heat dissipation sheet is a member that has thermal conductivity and insulation properties, and may include a member 13a that does not have cushioning properties and a member 13b that does. Below, it may be generally described as "heat dissipation sheet 13".
  • the casing 2 also includes a partition plate 9, and may be collectively referred to as the "casing 2" below.
  • the heat dissipating component has a configuration of a heat dissipating component 10a held on a heat generating component and a configuration of a heat dissipating component 10b held on the heat generating component via the casing 2. Below, it may be generally described as "heat dissipation component 10.”
  • FIG. 5 shows a situation where the heat dissipation component 10 and the housing 2 are not connected.
  • the components attached to the housing 2 are mounted on the inverter board 12.
  • the components mounted on the surface of the inverter board 12 on the side of the casing 2 can be thermally conductive by attaching a heat dissipation sheet 13 having a thickness greater than a predetermined thickness between the casing 2 and the components. is connected to the housing 2.
  • the heat dissipation sheet 13 radiates heat on the surface of the component to the casing 2.
  • components that are not flat in shape or components that cannot be brought into close contact with the casing 2 due to tall components are brought into close contact with the casing 2 in a thermally conductive manner due to the cushioning properties of the heat dissipation sheet 13b.
  • a heat dissipation sheet 13b having a thickness equal to or greater than a predetermined thickness is attached between the inverter board 12 and the housing 2 in the soldered and patterned areas where the temperature is relatively high on the side of the housing 2. Thus, it is connected to the housing 2 in a thermally conductive manner.
  • the heat dissipation sheet 13b radiates heat from the soldered parts and patterned parts of the components to the housing 2, which can prevent component failure, melting of the soldered parts, increase in the temperature of the inverter board 12, and decrease in the temperature of the space in the machine room 7. increase can be reduced.
  • a heat dissipation sheet 13b having a thickness greater than a predetermined thickness is placed between the casing 2 and the soldered portions and patterned portions of the components. By being attached, it is connected to the housing 2 in a thermally conductive manner.
  • the heat dissipation sheet 13b radiates heat from the soldered parts and patterned parts of the components to the housing 2, which can prevent component failure, melting of the soldered parts, increase in the temperature of the inverter board 12, and decrease in the temperature of the space in the machine room 7. increase can be reduced.
  • FIG. 6 is a diagram showing a partial configuration of a heat pump outdoor unit of a first modification according to the embodiment.
  • FIG. 6 shows a partition plate 9, a heat dissipation component 10, an inverter board 12, a heat dissipation sheet 13, and a heat-generating electrical device held in a state in which heat can be conducted to the heat dissipation component 10 via the heat dissipation sheet 13.
  • Product loading bodies 15a, 15b, 15c, and 15d are shown.
  • the heat generating electrical component mounting bodies 15a, 15b, 15c, and 15d are attached to the inverter board 12. As shown in FIG.
  • the heat pump outdoor unit of the first modified example of the embodiment includes a heat generating component attached to the heat dissipating component 10 and a heat generating component not attached to the heat dissipating component 10. do. There are also heat-generating components that are in close contact with the heat-radiating component 10 via the heat-radiating sheet 13.
  • the heat dissipation sheet 13b is also a cushioning material and an insulating sheet. The components attached to the heat dissipation component 10 are mounted on the inverter board 12.
  • the components mounted on the side of the casing 2 of the inverter board 12 are heat-conducting by attaching a heat-radiating sheet 13 having a thickness equal to or greater than a predetermined thickness between the heat-radiating component 10 and the heat-generating component. is connected to the housing 2.
  • the heat dissipation sheet 13 radiates heat on the surface of the component to the heat dissipation component 10, and even components that generate significant heat and are difficult to attach to the heat dissipation component 10 can be connected to the casing 2 in a thermally conductive manner.
  • a heat dissipation sheet 13 having a thickness equal to or greater than a predetermined thickness is attached between the inverter board 12 and the heat dissipation component 10 in the soldered and patterned areas on the side of the casing 2 where the temperature is high. , are thermally conductively connected to the housing 2.
  • the heat dissipation sheet 13b releases the heat from the soldered parts and patterned parts of the components to the heat dissipated parts 10, resulting in component failure, melting of the soldered parts, an increase in the temperature of the inverter board 12, and an increase in the temperature of the space in the machine room 7. can be reduced.
  • a component mounted on the surface of the inverter board 12 opposite to the casing 2 is a heat dissipation sheet 13 having a thickness greater than a predetermined thickness between the heat dissipation component 10 and the soldered portion and pattern portion of the heat generating component. is connected to the housing 2 in a thermally conductive manner.
  • the heat dissipation sheet 13 radiates heat from the soldered parts and patterned parts of the components to the heat dissipated parts 10, which prevents component failure, melting of the soldered parts, increase in the temperature of the inverter board 12, and decrease in the temperature of the space in the machine room 7. increase can be reduced.
  • FIG. 7 is a diagram showing a partial configuration of a heat pump outdoor unit of a second modification according to the embodiment.
  • FIG. 7 shows a machine room 7 configured by a partition plate 9, a heat dissipation component 10, an inverter board 12, and a partition plate 9a of the case 2 or a case surface 9b connected to the partition plate 9a of the case 2.
  • a heat-generating electrical component 16 is shown held in a heat-conducting state with respect to the wall surface of the device.
  • the heat pump outdoor unit of the second modified example of the embodiment includes a heat generating component attached to the heat dissipating component 10.
  • FIG. There are also heat-generating components that are in close contact with the casing 2 via a heat dissipation sheet.
  • the heat dissipation sheet 13b is also a cushioning material and an insulating sheet.
  • the components attached to the heat dissipation component 10 in FIG. 7 are not mounted on the inverter board 12.
  • FIG. 8 is a diagram showing a partial configuration of a heat pump outdoor unit according to a third modification example of the embodiment.
  • Components that are not mounted on the inverter board 12 are connected to the casing 2 in a thermally conductive manner by attaching a heat dissipation sheet with a thickness greater than a predetermined thickness between the casing 2 and the heat-generating components. There is.
  • the heat dissipation sheet 13 allows the heat on the surface of the component to be radiated to the housing 2, thereby making it possible to radiate heat from the heat generating component and to reduce the rise in temperature of the space in the machine room 7.
  • FIG. 9 is a perspective view of the blower chamber 8 included in the heat pump outdoor unit 1 according to the embodiment. Also shown in FIG. 9 is the machine room 7. FIG. 9 schematically shows the blower room 8 and the machine room 7. By applying the air from the blower 4 to the surface of the partition plate 9 on the side of the blower room 8 where the heat-generating electrical components 17 of the machine room 7 are arranged, or by generating a flow of air from the blower 4, the partition plate It is expected that heat will be conducted through the heat dissipation sheet 18 which is disposed between the electrical component 9 and the heat-generating component and has a thickness greater than a predetermined thickness, resulting in a further heat dissipation effect of the heat-generating electrical component 17.
  • a heat radiating component 19 connected to the heat radiating component 10 of the machine room 7 is arranged in the blower room 8 in FIG.
  • the heat dissipation component 19 is in contact with the partition plate 9.
  • the heat dissipation component 19 is a heat sink.
  • a duct 20 is arranged on the surface of the partition plate 9 on the side of the blower room 8.
  • the heat pump outdoor unit 1 uses the heat dissipating parts 10 and the like and efficiently cools the heat generating parts and heat generating parts by using the internal structure of the housing 2, so it has high cooling performance. can be realized. Furthermore, the heat pump outdoor unit 1 includes components that cannot be compensated for by large heat dissipation components alone, components whose shape is difficult to adapt to heat dissipation components, soldered parts of heat generating components attached to the inverter board 12, and inverter board 12. pattern and the entire electrical component mounting body 6 can be efficiently radiated.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

Cette unité extérieure de pompe à chaleur (1) présente : un boîtier (2) ; un échangeur de chaleur air-réfrigérant (3) ; une soufflante (4) ; un moteur de compresseur (5) ; un corps de montage de composants électriques (6) sur lequel une pluralité de composants électriques comportant un substrat d'onduleur (12) sont montés ; une plaque de séparation (9) qui forme, à l'intérieur du boîtier (2), une chambre de machine (7) qui reçoit le moteur de compresseur (5) et le corps de montage de composant électrique (6), et une chambre de soufflante (8) qui reçoit l'échangeur de chaleur air-réfrigérant (3) et la soufflante (4) ; et un composant de dissipation de chaleur (10) qui est fixé à la plaque de séparation (9) sur le côté chambre de machine (7). Un composant électrique de génération de chaleur (11) qui est maintenu dans un état thermoconducteur par rapport au composant de dissipation de chaleur (10) est inclus dans la pluralité de composants électriques. Sont fixés au substrat d'onduleur (12) des corps de montage de composant électrique générant de la chaleur (14a, 14b, 14c, 14d) maintenus dans un état thermoconducteur sur la surface de paroi de la chambre de machine (7) constituée par la plaque de séparation (9) ou le boîtier (2) par l'intermédiaire d'un élément (13) présentant une conductivité thermique ou une propriété d'amortissement.
PCT/JP2022/015983 2022-03-30 2022-03-30 Unité extérieure de pompe à chaleur WO2023188106A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2024510889A JPWO2023188106A1 (fr) 2022-03-30 2022-03-30
PCT/JP2022/015983 WO2023188106A1 (fr) 2022-03-30 2022-03-30 Unité extérieure de pompe à chaleur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2022/015983 WO2023188106A1 (fr) 2022-03-30 2022-03-30 Unité extérieure de pompe à chaleur

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WO2023188106A1 true WO2023188106A1 (fr) 2023-10-05

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006214632A (ja) * 2005-02-03 2006-08-17 Daikin Ind Ltd 空気調和装置の室外ユニット
JP2008121966A (ja) * 2006-11-10 2008-05-29 Daikin Ind Ltd 空気調和機の室外機
WO2016147345A1 (fr) * 2015-03-18 2016-09-22 株式会社テーケィアール Module d'alimentation électrique et unité extérieure de climatiseur l'utilisant
WO2018179083A1 (fr) * 2017-03-28 2018-10-04 三菱電機株式会社 Dispositif à cycle de réfrigération
JP2019143879A (ja) * 2018-02-21 2019-08-29 株式会社富士通ゼネラル 空気調和機の室外機

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006214632A (ja) * 2005-02-03 2006-08-17 Daikin Ind Ltd 空気調和装置の室外ユニット
JP2008121966A (ja) * 2006-11-10 2008-05-29 Daikin Ind Ltd 空気調和機の室外機
WO2016147345A1 (fr) * 2015-03-18 2016-09-22 株式会社テーケィアール Module d'alimentation électrique et unité extérieure de climatiseur l'utilisant
WO2018179083A1 (fr) * 2017-03-28 2018-10-04 三菱電機株式会社 Dispositif à cycle de réfrigération
JP2019143879A (ja) * 2018-02-21 2019-08-29 株式会社富士通ゼネラル 空気調和機の室外機

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