WO2022239336A1 - Outdoor unit - Google Patents

Outdoor unit Download PDF

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Publication number
WO2022239336A1
WO2022239336A1 PCT/JP2022/005197 JP2022005197W WO2022239336A1 WO 2022239336 A1 WO2022239336 A1 WO 2022239336A1 JP 2022005197 W JP2022005197 W JP 2022005197W WO 2022239336 A1 WO2022239336 A1 WO 2022239336A1
Authority
WO
WIPO (PCT)
Prior art keywords
control board
outdoor unit
housing
control box
outdoor
Prior art date
Application number
PCT/JP2022/005197
Other languages
French (fr)
Japanese (ja)
Inventor
国広 東浦
康弘 内藤
恵介 三苫
丈幸 是澤
和也 縄田
啓介 増田
Original Assignee
三菱重工サーマルシステムズ株式会社
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 三菱重工サーマルシステムズ株式会社 filed Critical 三菱重工サーマルシステムズ株式会社
Priority to EP22807043.9A priority Critical patent/EP4321811A1/en
Priority to AU2022274345A priority patent/AU2022274345A1/en
Publication of WO2022239336A1 publication Critical patent/WO2022239336A1/en

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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
    • F24F1/20—Electric components for separate outdoor units
    • F24F1/24—Cooling of electric components
    • 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
    • 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
    • F24F1/56—Casing or covers of separate outdoor units, e.g. fan guards

Definitions

  • the present disclosure relates to outdoor units used in air conditioners.
  • An outdoor unit used for an air conditioner is provided with a control box that houses a control board with electrical components that control the compressor (Patent Documents 1 and 2).
  • the air conditioner when the air conditioner is operated for cooling when the outside temperature is high, such as in the summer, the warm air (hot air) is trapped in the upper space inside the outdoor unit, resulting in a high temperature.
  • the temperature inside the outdoor unit rises in this way, it is necessary to limit the current value of the electrical components provided on the control board in order to prevent the temperature of the electrical components from rising abnormally.
  • the present disclosure has been made in view of such circumstances, and an object thereof is to provide an outdoor unit in which the control board in the control box can be easily replaced. Another object of the present disclosure is to provide an outdoor unit capable of suppressing temperature rise of electrical components provided on a control board.
  • the outdoor unit of the present disclosure is provided with an outdoor fan that introduces outside air, a compressor that compresses a refrigerant, and an electrical component that controls the outdoor fan and/or the compressor.
  • a space is formed between a board, a control box that houses the control board, a housing that houses the outdoor fan, the compressor, the control board, and the control box, and a top plate of the housing.
  • a separating member that separates the control box from the top plate, and the control board is detachable with the separating member fixed to the housing.
  • the control board in the control box can be easily replaced. It is possible to suppress the temperature rise of the electrical components provided on the control board.
  • FIG. 1 is a perspective view showing the appearance of an outdoor unit according to an embodiment of the present disclosure
  • FIG. Fig. 2 is a perspective view showing a state in which a service panel and a top plate are removed from the outdoor unit of Fig. 1
  • FIG. 3 is a perspective view showing a state in which the compressor and control box shown in FIG. 2 are removed
  • FIG. 3 is a perspective view showing a state in which the impermeable wall shown in FIG. 2 is removed
  • It is a perspective view showing a control box.
  • Figure 6 is an exploded perspective view of the control box of Figure 5; It is the perspective view which showed the impermeable wall.
  • Fig. 4 is a perspective view showing a part of the outdoor unit shown in Fig. 3
  • FIG. 10 is a perspective view showing a state in which the cover member is removed during the replacement work of the control board
  • FIG. 11 is a perspective view showing a state in which the control board is removed during replacement work of the control board;
  • FIG. 1 shows an outdoor unit 1 according to this embodiment.
  • the outdoor unit 1 is installed outdoors and connected to an indoor unit (not shown) via a refrigerant pipe (not shown).
  • the indoor unit air-conditions the room.
  • the outdoor unit 1 has a rectangular parallelepiped housing 3 made of sheet metal.
  • the housing 3 includes an outdoor fan 5 and the like.
  • the outdoor fan 5 is driven by an electric motor (not shown).
  • the housing 3 includes a mesh fan guard 7 provided in front of the outdoor fan 5 and a service panel 9 provided on the side of the fan guard 7 (right side in FIG. 1).
  • the housing 3 includes a rear panel 10 forming a rear surface, side panels 12 laterally connecting the rear panel 10 and the service panel 9, and a top plate 11 forming an upper surface.
  • the service panel 9 and the top plate 11 are detachable from the main body of the outdoor unit 1 .
  • FIG. 2 shows a state in which the service panel 9 and the top plate 11 are removed from the outdoor unit 1.
  • Compressor 13 is exposed by removing service panel 9 .
  • the compressor 13 has a vertically erected tubular shape, and includes a compression mechanism such as a scroll member and a rotary member driven by an inverter-driven electric motor (not shown) housed therein. there is The refrigerant compressed by the compression mechanism is guided to the outdoor heat exchanger 17 or the indoor heat exchanger via a four-way valve (not shown).
  • a partition plate 15 is provided between the compressor 13 and the outdoor fan 5 .
  • the partition plate 15 is made of sheet metal and is a wall body erected upward from the bottom plate 16 of the housing 3 .
  • the partition plate 15 has an L-shaped cross section that covers the sides and back of the compressor 13, as shown in FIG. 3 with the compressor 13 removed.
  • the space on the compressor 13 side (the right side in FIG. 3) partitioned by the partition plate 15 is the machine room R1
  • the space on the outdoor fan 5 side (the left side in FIG. 3) is the fan room R2.
  • the fan room R2 is provided with an outdoor heat exchanger 17, as shown in FIG.
  • the outdoor heat exchanger 17 exchanges heat between the outside air taken into the housing 3 by the outdoor fan 5 and the refrigerant flowing through the heat transfer tube (not shown), and functions as a condenser during cooling operation and as an evaporator during heating operation. becomes.
  • FIG. 2 shows a state in which the control box 20 is removed while the partition plate 15 and the impermeable wall 30 remain.
  • the control box 20 is installed in the space between the upper end 15a of the partition plate 15 and the lower end 30f of the impermeable wall 30.
  • the control box 20 is provided extending horizontally above the partition plate 15 .
  • control box 20 includes a frame 22 forming an outer shape, a control board 24 detachably fixed to the frame 22, and a control board 24 extending above the control board 24. and a cover member 26 for covering.
  • the frame body 22 is rectangular in plan view and made of sheet metal.
  • the frame body 22 includes an upper frame 22a and a lower frame 22b connected to the upper frame 22a.
  • the upper frame 22a is provided with a seat portion 22a1 that contacts and supports the outer peripheral edge of the control board 24. As shown in FIG. A screw 23 for fixing the control board 24 can be attached to and detached from the seat portion 22a1.
  • a radiation fin opening 22c into which the radiation fin 24a of the control board 24 is inserted is formed in the upper frame 22a.
  • the shape of the radiation fin openings 22c corresponds to the outer shape of the radiation fins 24a.
  • the radiation fins 24a are exposed below the upper frame 22a while penetrating through the radiation fin openings 22c.
  • the lower frame 22b is not provided in the area where the radiation fins 24a are exposed.
  • the lower frame 22b is provided over a side area (right side in FIGS. 5 and 6) avoiding the area where the radiation fin openings 22c are provided.
  • the lower frame 22b protects the electrical components and wiring provided on the control board 24.
  • the lower frame 22b is provided on the side of the machine room R1 with the partition plate 15 interposed therebetween, and the heat radiation fin 24a side without the lower frame 22b is provided with the partition plate 15 on the fan room R2 side. provided on the side.
  • a terminal block 22 d is provided on the side of the frame 22 .
  • the terminal block 22 d connects electrical wiring between the electrical components of the control board 24 and the compressor 13 and the outdoor fan 5 .
  • the control board 24 controls operations of the outdoor fan 5, the compressor 13, a four-way valve (not shown), and the like.
  • the control board 24 includes heat radiation fins 24a, a plate-shaped board body 24b, and electrical components 24c mounted on the board body 24b.
  • the board main body 24b is a printed board having a rectangular shape in plan view. Screw holes (six in FIG. 6) through which fixing screws 23 pass are formed around the substrate body 24b.
  • the control board 24 can be separated from the frame 22 by removing the screws 23 .
  • the electrical component 24c is, for example, an electronic component such as a capacitor or a CPU.
  • the electrical component 24c is provided on the lower surface of the board main body 24b.
  • the radiation fins 24a are used to remove heat generated by the CPU, etc., and are made of a metal material having a relatively high thermal conductivity, such as an aluminum alloy.
  • the radiation fins 24a are provided so as to protrude downward from the lower surface of the substrate body 24b.
  • the cover member 26 is made of sheet metal and shaped to cover the control board 24 from above.
  • the cover member 26 protects the control board 24 and also protects surrounding members from sparks generated from the control board 24 .
  • the cover member 26 has a lid shape including a rectangular main surface 26a and side portions 26b bent downward from each of the four sides of the main surface 26a.
  • a plurality of projecting portions 26b1 are provided on the side portion 26b.
  • Each projecting portion 26b1 is fitted to a corresponding claw portion 22e provided on the upper frame 22a of the frame body 22. As shown in FIG. Thereby, the cover member 26 can be easily attached to and detached from the frame body 22 .
  • the impermeable wall 30 is made of sheet metal and includes a first side wall portion 30a, a second side wall portion 30b, and a third side wall portion 30c connected in a U-shape.
  • the height of the impermeable wall 30 is such that a predetermined space is secured above the control box 20 . Specifically, the height is set so that work can be performed when replacing the control board 24 provided in the control box 20, for example, 100 mm or more and 150 mm or less.
  • the impermeable wall 30 is provided so as to surround the periphery of the control box 20 , more specifically, the outer periphery of the control board 24 .
  • the upper end of the impermeable wall 30 abuts against the lower surface of the top plate 11 (see FIG. 1) of the housing 3 via, for example, a heat insulating material. In this case, the heat insulating material may be omitted.
  • the top plate 11 and the control box 20 are separated by the impermeable wall 30, and an upper space R3 (see FIG. 2) is formed above the control box 20.
  • the upper space R3 surrounded by the impermeable wall 30 is hollow and has no devices installed therein.
  • the first side wall portion 30a is a plate-like body located on the front side of the outdoor unit 1. As shown in FIG. The horizontal dimension of the first side wall portion 30 a is smaller than the horizontal dimension of the control box 20 . As a result, for example, as shown in FIG. 2, an access opening 30d through which the control box 20 can be accessed is formed on the right side of the first side wall portion 30a when the service panel 9 (see FIG. 1) is removed.
  • connection piece 30a1 projecting downward is provided at the other end (right open end) of the first side wall portion 30a.
  • the connection piece 30a1 is used when connecting with the partition plate 15, as shown in FIG.
  • the connection piece 30a1 and the partition plate 15 are fixed by screws (not shown).
  • the second side wall portion 30b is a plate-like body connected perpendicularly to one end (left end) of the first side wall portion 30a.
  • the second side wall portion 30 b extends in the depth direction of the outdoor unit 1 .
  • the upper end of the second side wall portion 30b is flush with the upper end of the first side wall portion 30a.
  • the second side wall portion 30b is provided with a vent hole 30b1 which is a through hole.
  • Two vent holes 30b1 are provided as circular holes, and are provided in the center and downward in the width direction of the second side wall portion 30b.
  • the shape, position and number of vents 30b1 are not limited to those shown in FIG.
  • a fluid flow is formed from the upper space R3 (see FIG. 2) surrounded by the impermeable wall 30 to the fan chamber R2 by the air vent 30b1. As a result, the outdoor fan 5 can suck the hot air remaining in the upper space R3.
  • the third side wall portion 30c is a plate-like body connected perpendicularly to one end of the second side wall portion 30b, and is positioned along the rear side of the outdoor unit 1.
  • the upper end of the third side wall portion 30c is flush with the upper end of the second side wall portion 30b.
  • the horizontal dimension of the third side wall portion 30 c is greater than the horizontal dimension of the first side wall portion 30 a and greater than the horizontal dimension of the control box 20 .
  • connection piece 30c1 projecting downward is provided at the other end (right open end) of the third side wall portion 30c.
  • the connection piece 30c1 is used when connecting with the partition plate 15, as shown in FIG.
  • the connection piece 30c1 and the partition plate 15 are fixed by screws (not shown).
  • the water impermeable wall 30 is fixed to the upper part of the partition plate 15 by two connection pieces 30a1 and 30c1.
  • the load applied downward from the top plate 11 is transmitted to the partition plate 15 via the impermeable wall 30 . That is, the structure is such that the load applied downward from the top plate 11 is not transmitted to the control box 20 .
  • a connection member 32 is provided at the other end (open end) of the third side wall portion 30c.
  • the connection member 32 connects the waterproof wall 30 to the rear panel 10 of the housing 3 .
  • the connecting member 32 is used as a member for fixing the outdoor heat exchanger 17 (see FIG. 2), and also functions as a separating member for separating the control box 20 from the top plate 11 .
  • a notch is provided at the upper end of the connecting member 32 and on the rear panel 10 side, and a vent hole 33 is formed by this notch.
  • the vent 33 forms a fluid flow from the upper space R3 (see FIG. 2) surrounded by the impermeable wall 30 to the fan chamber R2. As a result, the outdoor fan 5 can suck the hot air remaining in the upper space R3.
  • the service panel 9 (see FIG. 1) is removed.
  • the top plate 11 (see FIG. 1) may be removed as shown in FIG. 2, or the work may be performed without removing it depending on the work environment.
  • the upper space R3 is accessed through the access opening 30d formed by the impermeable wall 30, and the cover member 26 is removed from the control box 20.
  • the removal work is performed by disengaging the projection 26b1 (see FIG. 6) of the cover member 26 from the claw 22e (see FIG. 6) of the frame 22.
  • the impervious wall 30 and the connecting member 32 remain fixed to the partition plate 15 and are not removed.
  • the control board 24 is removed from the control box 20.
  • the removal work is performed by removing screws 23 (see FIG. 6) fixed through screw holes 24d (see FIG. 6) formed in the control board 24.
  • FIG. Even in this step, the impervious wall 30 and the connecting member 32 remain fixed to the partition plate 15 and are not removed.
  • a water impermeable wall 30 is provided as a separating member above the control box 20 so as to form an upper space R3 between itself and the top plate 11 .
  • a work space can be secured above the control box 20, and work such as replacement of the control board 24 can be facilitated.
  • the heat generated from the electrical component 24c of the control board 24 is dissipated to the upper space R3, and the temperature rise of the electrical component 24c can be suppressed.
  • the control board 24 can be detachable with the impermeable wall 30 fixed to the housing 3 side (specifically, the partition plate 15). Accordingly, when replacing the control board 24, the control board 24 can be removed without removing the impermeable wall 30 from the housing 3 side.
  • the water impermeable wall 30 forms an upper space R3 above the control box 20, that is, above the control board 24, it is possible to secure a work space for exchanging the control board 24. In particular, it is possible to access the control board 24 from the front side of the housing 3 without removing the top plate 11 , which is advantageous when there is an obstacle above the top plate 11 .
  • the water impermeable wall 30 includes side walls 30a, 30b, and 30c erected so as to surround the periphery of the control board when viewed from above. It can effectively block water.
  • the upper space R3 surrounded by the impermeable wall 30 is hollow, it can be used as a working space when the control board 24 is replaced.
  • the impermeable wall 30 is formed with an access opening 30d on the front side of the housing 3, so that the control board 24 can be accessed. Therefore, the control board 24 can be replaced without having to replace it.
  • the impermeable wall 30 is provided so as to receive the load between the top plate 11 and the upper part of the partition plate 15, the strength of the outdoor unit 1 can be improved. Moreover, since the impermeable wall 30 receives the load, the control box 20 and the control board 24 are not subjected to a large load.
  • the impermeable wall 30 is provided so as to avoid the path between the heat radiation fins 24a provided on the control board 24 and the outdoor fan. As a result, the fluid can smoothly flow from the radiation fins 24a toward the outdoor fan 5, and the cooling efficiency can be improved.
  • An outdoor unit (1) includes an outdoor fan (5) that introduces outside air, a compressor (13) that compresses a refrigerant, and electrical components that control the outdoor fan and/or the compressor.
  • a control board (24) provided with (24c), a control box (20) containing the control board, and a housing (3) containing the outdoor fan, the compressor, the control board and the control box. and isolation members (30, 32) for isolating the control box from the top plate (11) of the housing so as to form a space (R3) between the top plate (11), wherein the control board is , the isolation member is removable in a state of being fixed to the housing.
  • a separation member is provided above the control box so as to form a space between it and the top plate.
  • a work space can be secured above the control box, and work such as replacement of the control board can be facilitated.
  • the heat generated from the electrical components of the control board is dissipated to the upper space, and the temperature rise of the electrical components can be suppressed.
  • the control board can be detachable with the separating member fixed to the housing. Accordingly, when replacing the control board, the control board can be removed without removing the isolation member from the housing. Since the separating member forms a space above the control box, that is, above the control board, it is possible to secure a working space for exchanging the control board. In particular, it is possible to access the control board from the front side of the housing without removing the top plate, which is advantageous when there is an obstacle above the top plate.
  • the isolation member includes side walls (30a, 30b, 30c) erected to surround the control board in plan view.
  • the isolation member has a side wall portion that is erected so as to surround the periphery of the control board when viewed from above, it can be used as a water impermeable wall that blocks water such as rainwater from entering the space above the control board. can.
  • the isolation member is formed on the front side of the housing and has an opening (30d) that allows access to the control board.
  • the isolation member has an opening formed on the front side of the housing so that the control board can be accessed, so that the control board can be replaced without accessing the control board from the top plate side of the housing. can.
  • the space surrounded by the side walls is hollow.
  • the space surrounded by the side walls is hollow, it can be used as a working space when replacing the control board.
  • the isolation member is formed with vents (30b1, 33) that communicate with the space provided with the outdoor fan.
  • a partition plate (15) separating a fan room (R2) provided with the outdoor fan and a machine room (R1) provided with the compressor is provided at the bottom of the housing.
  • the separation member is provided to receive a load between the top plate and the upper portion of the partition plate.
  • the isolation member is provided so as to receive the load between the top plate and the upper part of the partition plate, so the strength of the outdoor unit can be improved. Moreover, since the isolation member receives the load, the control box and the control board are not subjected to a large load.
  • the outdoor unit includes heat radiation fins (24a) fixed to the control board, and the isolation member is provided so as to avoid a path between the heat radiation fins and the outdoor fan. .
  • Radiating fins are fixed to the control board.
  • the radiation fins cool electrical components such as a CPU provided on the board.
  • the isolation member is provided so as to avoid a path between the heat radiation fins and the outdoor fan. As a result, the fluid can smoothly flow from the radiation fins to the outdoor fan, and the cooling efficiency can be improved.

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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)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Structures Or Materials For Encapsulating Or Coating Semiconductor Devices Or Solid State Devices (AREA)

Abstract

Provided is an outdoor unit in which a control board in a control box can be easily replaced. The present invention comprises: an outdoor fan (5) for introducing outside air; a compressor (13) that compresses a refrigerant; a control board that is provided with electrical components that control the outdoor fan (5) and/or the compressor (13); a control box (20) that houses the control board; a housing (3) that houses the outdoor fan (5), the compressor (13), the control board and the control box (20); and an impermeable wall (30) that separates the control box (20) from the top plate of the housing so that an upper space (R3) is formed between same and the top plate. The control board is removable is a state in which the impermeable wall (30) is fixed to the housing (3) side.

Description

室外機Outdoor unit
　本開示は、空気調和機に用いられる室外機に関するものである。 The present disclosure relates to outdoor units used in air conditioners.
　空気調和機に用いられる室外機には、圧縮機等を制御する電装部品を備えた制御基板を収容する制御ボックスが設けられている（特許文献１及び２）。 An outdoor unit used for an air conditioner is provided with a control box that houses a control board with electrical components that control the compressor (Patent Documents 1 and 2).
特開２００１－２８１２８６号公報Japanese Patent Application Laid-Open No. 2001-281286 特開２０１１－０９４９２６号公報JP 2011-094926 A
　しかし、各上記特許文献に開示されているように、制御ボックスは室外機の筐体の天板の近傍に設けられているため、室外機の上方に障害物などが存在して制御ボックスの上方から容易にアクセスできない場合、制御ボックス内の制御基板の交換が困難となる。 However, as disclosed in each of the above-mentioned patent documents, since the control box is provided near the top plate of the housing of the outdoor unit, obstacles or the like exist above the outdoor unit, causing the control box to If the control board cannot be easily accessed from the control box, it becomes difficult to replace the control board in the control box.
　また、夏期のように外気温が高い条件で空気調和機を冷房運転した場合、室外機内部の上方空間に暖機（熱気）が籠もり高温になる。このように室外機内部が高温になると制御基板に設けた電装部品の温度異常上昇を防ぐため、電装部品の電流値を制限する必要が生じ冷房能力が低下してしまうという問題がある。 In addition, when the air conditioner is operated for cooling when the outside temperature is high, such as in the summer, the warm air (hot air) is trapped in the upper space inside the outdoor unit, resulting in a high temperature. When the temperature inside the outdoor unit rises in this way, it is necessary to limit the current value of the electrical components provided on the control board in order to prevent the temperature of the electrical components from rising abnormally.
　本開示は、このような事情に鑑みてなされたものであって、制御ボックス内の制御基板の交換が容易な室外機を提供することを目的とする。
　また、本開示は、制御基板に設けた電装部品の温度上昇を抑制することができる室外機を提供することを目的とする。 The present disclosure has been made in view of such circumstances, and an object thereof is to provide an outdoor unit in which the control board in the control box can be easily replaced.
Another object of the present disclosure is to provide an outdoor unit capable of suppressing temperature rise of electrical components provided on a control board.
　上記課題を解決するために、本開示の室外機は、外気を導入する室外ファンと、冷媒を圧縮する圧縮機と、前記室外ファン及び／又は前記圧縮機を制御する電装部品が設けられた制御基板と、前記制御基板を収容する制御ボックスと、前記室外ファン、前記圧縮機、前記制御基板及び前記制御ボックスを収容する筐体と、前記筐体の天板との間で空間を形成するように該天板から前記制御ボックスを隔離する隔離部材と、を備え、前記制御基板は、前記隔離部材が前記筐体側に固定された状態で取り外し可能とされている。 In order to solve the above problems, the outdoor unit of the present disclosure is provided with an outdoor fan that introduces outside air, a compressor that compresses a refrigerant, and an electrical component that controls the outdoor fan and/or the compressor. A space is formed between a board, a control box that houses the control board, a housing that houses the outdoor fan, the compressor, the control board, and the control box, and a top plate of the housing. a separating member that separates the control box from the top plate, and the control board is detachable with the separating member fixed to the housing.
　制御ボックス内の制御基板を容易に交換することができる。
　制御基板に設けた電装部品の温度上昇を抑制することができる。 The control board in the control box can be easily replaced.
It is possible to suppress the temperature rise of the electrical components provided on the control board.
本開示の一実施形態に係る室外機の外観を示した斜視図である。1 is a perspective view showing the appearance of an outdoor unit according to an embodiment of the present disclosure; FIG. 図１の室外機からサービスパネルと天板とを取り外した状態を示した斜視図である。Fig. 2 is a perspective view showing a state in which a service panel and a top plate are removed from the outdoor unit of Fig. 1; 図２に示された圧縮機および制御ボックスを取り外した状態を示した斜視図である。FIG. 3 is a perspective view showing a state in which the compressor and control box shown in FIG. 2 are removed; 図２に示された遮水壁を取り外した状態を示した斜視図である。FIG. 3 is a perspective view showing a state in which the impermeable wall shown in FIG. 2 is removed; 制御ボックスを示した斜視図である。It is a perspective view showing a control box. 図５の制御ボックスの分解斜視図である。Figure 6 is an exploded perspective view of the control box of Figure 5; 遮水壁を示した斜視図である。It is the perspective view which showed the impermeable wall. 図３に示した室外機の一部を切断して示した斜視図である。Fig. 4 is a perspective view showing a part of the outdoor unit shown in Fig. 3; 制御基板の交換作業の際にカバー部材を取り外した状態を示した斜視図である。FIG. 10 is a perspective view showing a state in which the cover member is removed during the replacement work of the control board; 制御基板の交換作業の際に制御基板を取り外した状態を示した斜視図である。FIG. 11 is a perspective view showing a state in which the control board is removed during replacement work of the control board;
　以下に、本開示に係る一実施形態について、図面を参照して説明する。
　図１には、本実施形態に係る室外機１が示されている。室外機１は屋外に設置され、冷媒配管（図示せず）を介して室内機（図示せず）と接続されている。室内機によって、室内の空調が行われる。 An embodiment according to the present disclosure will be described below with reference to the drawings.
FIG. 1 shows an outdoor unit 1 according to this embodiment. The outdoor unit 1 is installed outdoors and connected to an indoor unit (not shown) via a refrigerant pipe (not shown). The indoor unit air-conditions the room.
　室外機１は、板金製とされた直方体形状の筐体３を備えている。筐体３内には、室外ファン５等を備えている。室外ファン５は、図示しない電動モータによって駆動される。 The outdoor unit 1 has a rectangular parallelepiped housing 3 made of sheet metal. The housing 3 includes an outdoor fan 5 and the like. The outdoor fan 5 is driven by an electric motor (not shown).
　筐体３は、室外ファン５の正面に設けられたメッシュ状のファンガード７と、ファンガード７の側方（図１において右方）に設けられたサービスパネル９とを備えている。筐体３は、背面を構成する背面パネル１０と、背面パネル１０とサービスパネル９とを側方で接続するサイドパネル１２と、上面を構成する天板１１とを備えている。サービスパネル９と天板１１は、室外機１の本体に対して着脱可能とされている。 The housing 3 includes a mesh fan guard 7 provided in front of the outdoor fan 5 and a service panel 9 provided on the side of the fan guard 7 (right side in FIG. 1). The housing 3 includes a rear panel 10 forming a rear surface, side panels 12 laterally connecting the rear panel 10 and the service panel 9, and a top plate 11 forming an upper surface. The service panel 9 and the top plate 11 are detachable from the main body of the outdoor unit 1 .
　図２には、室外機１からサービスパネル９と天板１１とを取り外した状態が示されている。サービスパネル９が取り外されることによって、圧縮機１３が露出される。圧縮機１３は、鉛直方向に立設された筒状とされており、内部に収納されたインバータ駆動の電動モータ（図示せず）によって駆動されるスクロール部材やロータリ部材等の圧縮機構を備えている。圧縮機構によって圧縮された冷媒は、四方弁（図示せず）を介して室外熱交換器１７又は室内熱交換器に導かれる。 FIG. 2 shows a state in which the service panel 9 and the top plate 11 are removed from the outdoor unit 1. Compressor 13 is exposed by removing service panel 9 . The compressor 13 has a vertically erected tubular shape, and includes a compression mechanism such as a scroll member and a rotary member driven by an inverter-driven electric motor (not shown) housed therein. there is The refrigerant compressed by the compression mechanism is guided to the outdoor heat exchanger 17 or the indoor heat exchanger via a four-way valve (not shown).
　圧縮機１３と室外ファン５との間には、仕切板１５が設けられている。仕切板１５は、板金製とされており、筐体３の底板１６から上方に向かって立設された壁体である。仕切板１５は、圧縮機１３を取り外した状態を示した図３に示されているように、圧縮機１３の側方及び背面を覆うようなＬ字形状の横断面とされている。仕切板１５によって仕切られた圧縮機１３側（図３において右側）の空間が機械室Ｒ１であり、室外ファン５側（図３において左側）の空間がファン室Ｒ２である。ファン室Ｒ２には、図２に示されているように、室外熱交換器１７が設けられている。室外熱交換器１７は、室外ファン５によって筐体３内に取り込まれた外気と伝熱管（図示せず）内を流れる冷媒とを熱交換し、冷房運転時には凝縮器となり、暖房運転時には蒸発器となる。 A partition plate 15 is provided between the compressor 13 and the outdoor fan 5 . The partition plate 15 is made of sheet metal and is a wall body erected upward from the bottom plate 16 of the housing 3 . The partition plate 15 has an L-shaped cross section that covers the sides and back of the compressor 13, as shown in FIG. 3 with the compressor 13 removed. The space on the compressor 13 side (the right side in FIG. 3) partitioned by the partition plate 15 is the machine room R1, and the space on the outdoor fan 5 side (the left side in FIG. 3) is the fan room R2. The fan room R2 is provided with an outdoor heat exchanger 17, as shown in FIG. The outdoor heat exchanger 17 exchanges heat between the outside air taken into the housing 3 by the outdoor fan 5 and the refrigerant flowing through the heat transfer tube (not shown), and functions as a condenser during cooling operation and as an evaporator during heating operation. becomes.
　図２に示すように、圧縮機１３の上方でかつ仕切板１５の上方には、制御ボックス２０と遮水壁（隔離部材）３０とが設けられている。
　制御ボックス２０は、仕切板１５の上方でかつ遮水壁３０の下方に設けられている。図３には、仕切板１５と遮水壁３０を残した上で制御ボックス２０を取り外した状態が示されている。同図から分かるように、制御ボックス２０は、仕切板１５の上端１５ａと遮水壁３０の下端３０ｆとの間の空間に設置される。遮水壁３０を取り外した状態を示した図４に示されているように、制御ボックス２０は仕切板１５の上方に水平方向に延在して設けられる。 As shown in FIG. 2, above the compressor 13 and above the partition plate 15, a control box 20 and a water impermeable wall (isolation member) 30 are provided.
The control box 20 is provided above the partition plate 15 and below the impermeable wall 30 . FIG. 3 shows a state in which the control box 20 is removed while the partition plate 15 and the impermeable wall 30 remain. As can be seen from the figure, the control box 20 is installed in the space between the upper end 15a of the partition plate 15 and the lower end 30f of the impermeable wall 30. As shown in FIG. As shown in FIG. 4 with the impermeable wall 30 removed, the control box 20 is provided extending horizontally above the partition plate 15 .
　図５及び図６に示されているように、制御ボックス２０は、外形を構成する枠体２２と、枠体２２に対して着脱可能に固定される制御基板２４と、制御基板２４の上方を覆うカバー部材２６とを備えている。 As shown in FIGS. 5 and 6, the control box 20 includes a frame 22 forming an outer shape, a control board 24 detachably fixed to the frame 22, and a control board 24 extending above the control board 24. and a cover member 26 for covering.
　枠体２２は、平面視して長方形とされており、板金製とされている。枠体２２は、上枠２２ａと、上枠２２ａに接続された下枠２２ｂとを備えている。 The frame body 22 is rectangular in plan view and made of sheet metal. The frame body 22 includes an upper frame 22a and a lower frame 22b connected to the upper frame 22a.
　上枠２２ａには、制御基板２４の外周縁に当接して支持する座部２２ａ１が設けられている。座部２２ａ１には、制御基板２４を固定するビス２３が着脱可能となっている。上枠２２ａには、制御基板２４の放熱フィン２４ａが挿入される放熱フィン用開口２２ｃが形成されている。放熱フィン用開口２２ｃの形状は、放熱フィン２４ａの外形状に対応している。図５に示すように、放熱フィン２４ａは、放熱フィン用開口２２ｃを貫通した状態で上枠２２ａの下方に露出するようになっている。図５から分かるように、放熱フィン２４ａが露出する領域には、下枠２２ｂが設けられていない。下枠２２ｂは、放熱フィン用開口２２ｃが設けられた領域を避けた側方（図５及び図６において右方）の領域にわたって設けられている。 The upper frame 22a is provided with a seat portion 22a1 that contacts and supports the outer peripheral edge of the control board 24. As shown in FIG. A screw 23 for fixing the control board 24 can be attached to and detached from the seat portion 22a1. A radiation fin opening 22c into which the radiation fin 24a of the control board 24 is inserted is formed in the upper frame 22a. The shape of the radiation fin openings 22c corresponds to the outer shape of the radiation fins 24a. As shown in FIG. 5, the radiation fins 24a are exposed below the upper frame 22a while penetrating through the radiation fin openings 22c. As can be seen from FIG. 5, the lower frame 22b is not provided in the area where the radiation fins 24a are exposed. The lower frame 22b is provided over a side area (right side in FIGS. 5 and 6) avoiding the area where the radiation fin openings 22c are provided.
　下枠２２ｂによって、制御基板２４に設けられた電装部品や配線などが保護される。例えば図４を参照すると分かるように、下枠２２ｂは仕切板１５を挟んで機械室Ｒ１側に設けられ、下枠２２ｂが設けられていない放熱フィン２４ａ側は仕切板１５を挟んでファン室Ｒ２側に設けられる。
　枠体２２の側方には、端子台２２ｄが設けられている。端子台２２ｄは、制御基板２４の電装部品と圧縮機１３及び室外ファン５との間で電気配線の接続を行う。 The lower frame 22b protects the electrical components and wiring provided on the control board 24. As shown in FIG. For example, as can be seen by referring to FIG. 4, the lower frame 22b is provided on the side of the machine room R1 with the partition plate 15 interposed therebetween, and the heat radiation fin 24a side without the lower frame 22b is provided with the partition plate 15 on the fan room R2 side. provided on the side.
A terminal block 22 d is provided on the side of the frame 22 . The terminal block 22 d connects electrical wiring between the electrical components of the control board 24 and the compressor 13 and the outdoor fan 5 .
　制御基板２４は、室外ファン５、圧縮機１３、四方弁（図示せず）等の動作を制御する。制御基板２４は、放熱フィン２４ａと、板状の基板本体２４ｂと、基板本体２４ｂ上に実装された電装部品２４ｃとを備えている。基板本体２４ｂは、平面視して長方形状とされたプリント基板とされている。基板本体２４ｂの周囲には、固定用のビス２３が貫通するビス用穴（図６では６つ）が形成されている。ビス２３を取り外すことによって、制御基板２４を枠体２２から分離することができる。
　電装部品２４ｃは、例えばコンデンサやＣＰＵ等の電子部品とされる。電装部品２４ｃは、基板本体２４ｂの下面に設けられている。
　放熱フィン２４ａは、ＣＰＵ等の発熱を除去するために用いられ、アルミ合金等の熱伝導率が比較的大きい金属材料が用いられる。放熱フィン２４ａは、基板本体２４ｂの下面から下方に突出するように設けられている。 The control board 24 controls operations of the outdoor fan 5, the compressor 13, a four-way valve (not shown), and the like. The control board 24 includes heat radiation fins 24a, a plate-shaped board body 24b, and electrical components 24c mounted on the board body 24b. The board main body 24b is a printed board having a rectangular shape in plan view. Screw holes (six in FIG. 6) through which fixing screws 23 pass are formed around the substrate body 24b. The control board 24 can be separated from the frame 22 by removing the screws 23 .
The electrical component 24c is, for example, an electronic component such as a capacitor or a CPU. The electrical component 24c is provided on the lower surface of the board main body 24b.
The radiation fins 24a are used to remove heat generated by the CPU, etc., and are made of a metal material having a relatively high thermal conductivity, such as an aluminum alloy. The radiation fins 24a are provided so as to protrude downward from the lower surface of the substrate body 24b.
　カバー部材２６は、板金製とされており、制御基板２４を上方から覆う形状とされている。カバー部材２６によって制御基板２４が保護され、また制御基板２４から発生したスパークから周囲部材が保護される。カバー部材２６は、長方形とされた主面２６ａと、主面２６ａの４辺のそれぞれから下方に折り曲げられた側部２６ｂとを備えた蓋形状とされている。側部２６ｂには、複数の突起部２６ｂ１が設けられている。各突起部２６ｂ１は、枠体２２の上枠２２ａに設けられた対応する爪部２２ｅに対して嵌合するようになっている。これにより、カバー部材２６は枠体２２に対して容易に着脱可能となっている。 The cover member 26 is made of sheet metal and shaped to cover the control board 24 from above. The cover member 26 protects the control board 24 and also protects surrounding members from sparks generated from the control board 24 . The cover member 26 has a lid shape including a rectangular main surface 26a and side portions 26b bent downward from each of the four sides of the main surface 26a. A plurality of projecting portions 26b1 are provided on the side portion 26b. Each projecting portion 26b1 is fitted to a corresponding claw portion 22e provided on the upper frame 22a of the frame body 22. As shown in FIG. Thereby, the cover member 26 can be easily attached to and detached from the frame body 22 .
　図７に示すように、遮水壁３０は、板金製とされ、コの字状に接続された第１側壁部３０ａ、第２側壁部３０ｂ及び第３側壁部３０ｃを備えている。遮水壁３０の高さは、制御ボックス２０の上方に所定の空間が確保される寸法とされる。具体的には、制御ボックス２０に設けた制御基板２４を交換する際に作業ができる程度の高さとされ、例えば１００ｍｍ以上１５０ｍｍ以下とされる。遮水壁３０は、制御ボックス２０の周囲、より具体的には制御基板２４の外周囲を取り囲むように設けられている。遮水壁３０の上端は例えば断熱材を介して筐体３の天板１１（図１参照）の下面に対して突き当てられる。なお、この場合、断熱材を省略しても良い。このように、遮水壁３０によって天板１１と制御ボックス２０とが隔離され、制御ボックス２０の上方に上方空間Ｒ３（図２参照）が形成されるようになっている。遮水壁３０によって囲まれた上方空間Ｒ３は、空洞とされており、装置類が設置されていない。 As shown in FIG. 7, the impermeable wall 30 is made of sheet metal and includes a first side wall portion 30a, a second side wall portion 30b, and a third side wall portion 30c connected in a U-shape. The height of the impermeable wall 30 is such that a predetermined space is secured above the control box 20 . Specifically, the height is set so that work can be performed when replacing the control board 24 provided in the control box 20, for example, 100 mm or more and 150 mm or less. The impermeable wall 30 is provided so as to surround the periphery of the control box 20 , more specifically, the outer periphery of the control board 24 . The upper end of the impermeable wall 30 abuts against the lower surface of the top plate 11 (see FIG. 1) of the housing 3 via, for example, a heat insulating material. In this case, the heat insulating material may be omitted. In this way, the top plate 11 and the control box 20 are separated by the impermeable wall 30, and an upper space R3 (see FIG. 2) is formed above the control box 20. As shown in FIG. The upper space R3 surrounded by the impermeable wall 30 is hollow and has no devices installed therein.
　図７に示すように、第１側壁部３０ａは、室外機１の正面側に位置する板状体とされている。第１側壁部３０ａの水平方向の寸法は、制御ボックス２０の水平方向の寸法よりも小さい。これにより、例えば図２に示すように、サービスパネル９（図１参照）を取り外した際に、第１側壁部３０ａの右側方に制御ボックス２０にアクセスできるアクセス用開口３０ｄが形成される。 As shown in FIG. 7, the first side wall portion 30a is a plate-like body located on the front side of the outdoor unit 1. As shown in FIG. The horizontal dimension of the first side wall portion 30 a is smaller than the horizontal dimension of the control box 20 . As a result, for example, as shown in FIG. 2, an access opening 30d through which the control box 20 can be accessed is formed on the right side of the first side wall portion 30a when the service panel 9 (see FIG. 1) is removed.
　第１側壁部３０ａの他端（右側の開放端）には、下方へ向かって突出する接続片３０ａ１が設けられている。接続片３０ａ１は、図８に示すように、仕切板１５と接続する際に用いられる。接続片３０ａ１と仕切板１５とは、図示しないビスによって固定される。 A connection piece 30a1 projecting downward is provided at the other end (right open end) of the first side wall portion 30a. The connection piece 30a1 is used when connecting with the partition plate 15, as shown in FIG. The connection piece 30a1 and the partition plate 15 are fixed by screws (not shown).
　図７に示すように、第２側壁部３０ｂは、第１側壁部３０ａの一端（左端）に対して直交するように接続された板状体とされている。第２側壁部３０ｂは、室外機１の奥行き方向に向かって延在している。第２側壁部３０ｂの上端は第１側壁部３０ａの上端と同一高さとされている。第２側壁部３０ｂには、貫通孔とされた通気口３０ｂ１が設けられている。通気口３０ｂ１は、丸穴として２つ設けられ、第２側壁部３０ｂの幅方向における中央でかつ下方に設けられている。ただし、通気口３０ｂ１の形状、位置及び個数は図７の形態に限定されるものではない。通気口３０ｂ１によって、遮水壁３０で囲まれた上方空間Ｒ３（図２参照）からファン室Ｒ２へと流体の流れが形成される。これにより、上方空間Ｒ３内に滞留した熱気を室外ファン５によって吸い込むことができる。 As shown in FIG. 7, the second side wall portion 30b is a plate-like body connected perpendicularly to one end (left end) of the first side wall portion 30a. The second side wall portion 30 b extends in the depth direction of the outdoor unit 1 . The upper end of the second side wall portion 30b is flush with the upper end of the first side wall portion 30a. The second side wall portion 30b is provided with a vent hole 30b1 which is a through hole. Two vent holes 30b1 are provided as circular holes, and are provided in the center and downward in the width direction of the second side wall portion 30b. However, the shape, position and number of vents 30b1 are not limited to those shown in FIG. A fluid flow is formed from the upper space R3 (see FIG. 2) surrounded by the impermeable wall 30 to the fan chamber R2 by the air vent 30b1. As a result, the outdoor fan 5 can suck the hot air remaining in the upper space R3.
　第３側壁部３０ｃは、第２側壁部３０ｂの一端に対して直交するように接続された板状体とされ、室外機１の背面側に沿って位置する。第３側壁部３０ｃの上端は第２側壁部３０ｂの上端と同一高さとされている。第３側壁部３０ｃの水平方向の寸法は、第１側壁部３０ａの水平方向の寸法よりも大きく、かつ制御ボックス２０の水平方向の寸法よりも大きい。 The third side wall portion 30c is a plate-like body connected perpendicularly to one end of the second side wall portion 30b, and is positioned along the rear side of the outdoor unit 1. The upper end of the third side wall portion 30c is flush with the upper end of the second side wall portion 30b. The horizontal dimension of the third side wall portion 30 c is greater than the horizontal dimension of the first side wall portion 30 a and greater than the horizontal dimension of the control box 20 .
　第３側壁部３０ｃの他端（右側の開放端）には、下方へ向かって突出する接続片３０ｃ１が設けられている。接続片３０ｃ１は、図８に示すように、仕切板１５と接続する際に用いられる。接続片３０ｃ１と仕切板１５とは、図示しないビスによって固定される。このように、遮水壁３０は、仕切板１５の上部に対して、２つの接続片３０ａ１,３０ｃ１によって固定されている。これにより、天板１１から下方に向かって加えられる荷重は、遮水壁３０を介して仕切板１５へと伝達される。すなわち、天板１１から下方に向かって加えられる荷重は、制御ボックス２０に伝達されない構造となっている。 A connection piece 30c1 projecting downward is provided at the other end (right open end) of the third side wall portion 30c. The connection piece 30c1 is used when connecting with the partition plate 15, as shown in FIG. The connection piece 30c1 and the partition plate 15 are fixed by screws (not shown). Thus, the water impermeable wall 30 is fixed to the upper part of the partition plate 15 by two connection pieces 30a1 and 30c1. Thereby, the load applied downward from the top plate 11 is transmitted to the partition plate 15 via the impermeable wall 30 . That is, the structure is such that the load applied downward from the top plate 11 is not transmitted to the control box 20 .
　図８に示すように、第３側壁部３０ｃの他端（開放端）には、接続部材３２が設けられている。接続部材３２は、遮水壁３０を筐体３の背面パネル１０に接続する。接続部材３２は、室外熱交換器１７（図２参照）を固定する部材として用いられ、また制御ボックス２０を天板１１から隔離する隔離部材としても機能する。接続部材３２の上端でかつ背面パネル１０側には、切欠が設けられており、この切欠によって通気口３３が形成されている。通気口３３によって、遮水壁３０で囲まれた上方空間Ｒ３（図２参照）からファン室Ｒ２へと流体の流れが形成される。これにより、上方空間Ｒ３内に滞留した熱気を室外ファン５によって吸い込むことができる。 As shown in FIG. 8, a connection member 32 is provided at the other end (open end) of the third side wall portion 30c. The connection member 32 connects the waterproof wall 30 to the rear panel 10 of the housing 3 . The connecting member 32 is used as a member for fixing the outdoor heat exchanger 17 (see FIG. 2), and also functions as a separating member for separating the control box 20 from the top plate 11 . A notch is provided at the upper end of the connecting member 32 and on the rear panel 10 side, and a vent hole 33 is formed by this notch. The vent 33 forms a fluid flow from the upper space R3 (see FIG. 2) surrounded by the impermeable wall 30 to the fan chamber R2. As a result, the outdoor fan 5 can suck the hot air remaining in the upper space R3.
　次に、上記構成の室外機１について、メンテナンスの際に制御ボックス２０の制御基板２４を交換する工程について説明する。
　まず、図２に示すように、サービスパネル９（図１参照）を取り外す。天板１１（図１参照）については、図２のように取り外しても良いし、作業環境によっては取り外さずに作業を行っても良い。 Next, a process for replacing the control board 24 of the control box 20 during maintenance of the outdoor unit 1 configured as described above will be described.
First, as shown in FIG. 2, the service panel 9 (see FIG. 1) is removed. The top plate 11 (see FIG. 1) may be removed as shown in FIG. 2, or the work may be performed without removing it depending on the work environment.
　次に、図９に示すように、遮水壁３０によって形成されたアクセス用開口３０ｄから上方空間Ｒ３にアクセスし、カバー部材２６を制御ボックス２０から取り外す。取り外す作業は、カバー部材２６の突起部２６ｂ１（図６参照）を枠体２２の爪部２２ｅ（図６参照）から係合を解除することによって行う。この工程において、遮水壁３０及び接続部材３２は仕切板１５に対して固定されたままであり、取り外されることはない。 Next, as shown in FIG. 9, the upper space R3 is accessed through the access opening 30d formed by the impermeable wall 30, and the cover member 26 is removed from the control box 20. The removal work is performed by disengaging the projection 26b1 (see FIG. 6) of the cover member 26 from the claw 22e (see FIG. 6) of the frame 22. As shown in FIG. In this process, the impervious wall 30 and the connecting member 32 remain fixed to the partition plate 15 and are not removed.
　次に、図１０に示すように、制御基板２４を制御ボックス２０から取り外す。取り外す作業は、制御基板２４に形成されたビス穴２４ｄ（図６参照）を介して固定されているビス２３（図６参照）を取り外すことによって行う。この工程においても、遮水壁３０及び接続部材３２は仕切板１５に対して固定されたままであり、取り外されることはない。 Next, as shown in FIG. 10, the control board 24 is removed from the control box 20. The removal work is performed by removing screws 23 (see FIG. 6) fixed through screw holes 24d (see FIG. 6) formed in the control board 24. FIG. Even in this step, the impervious wall 30 and the connecting member 32 remain fixed to the partition plate 15 and are not removed.
　新たな制御基板２４を取り付ける際は、上記の取り外し工程と逆の順序で行う。すなわち、制御基板２４を制御ボックス２０にビス２３によって固定した後に、カバー部材２６を制御基板２４の上方から被せて固定する。そして、サービスパネル９（図１参照）を取り付けて交換作業が終了する。 When installing a new control board 24, perform the above removal process in reverse order. That is, after fixing the control board 24 to the control box 20 with the screws 23, the cover member 26 is put over the control board 24 and fixed. Then, the service panel 9 (see FIG. 1) is attached to complete the replacement work.
　以上説明した本実施形態の作用効果は以下の通りである。
　制御ボックス２０の上方に、天板１１との間に上方空間Ｒ３を形成するように隔離部材として遮水壁３０を設けることとした。これにより、制御ボックス２０の上方に作業空間を確保することができ、制御基板２４の交換等の作業が容易となる。また、制御基板２４の電装部品２４ｃから発生した熱が上方空間Ｒ３へ散逸し、電装部品２４ｃの温度上昇を抑制することができる。 The effects of the present embodiment described above are as follows.
A water impermeable wall 30 is provided as a separating member above the control box 20 so as to form an upper space R3 between itself and the top plate 11 . As a result, a work space can be secured above the control box 20, and work such as replacement of the control board 24 can be facilitated. Moreover, the heat generated from the electrical component 24c of the control board 24 is dissipated to the upper space R3, and the temperature rise of the electrical component 24c can be suppressed.
　制御基板２４は、遮水壁３０が筐体３側（具体的には仕切板１５）に固定された状態で取り外し可能とすることができる。これにより、制御基板２４を交換する際に、遮水壁３０を筐体３側から取り外すことなく制御基板２４を取り外すことができる。 The control board 24 can be detachable with the impermeable wall 30 fixed to the housing 3 side (specifically, the partition plate 15). Accordingly, when replacing the control board 24, the control board 24 can be removed without removing the impermeable wall 30 from the housing 3 side.
　遮水壁３０によって制御ボックス２０の上方すなわち制御基板２４の上方に上方空間Ｒ３が形成されるので、制御基板２４を交換する際の作業空間を確保することができる。特に、天板１１を取り外さずに筐体３の正面側から制御基板２４にアクセスすることが可能となるので、天板１１の上方に障害物がある場合に有利である。 Since the water impermeable wall 30 forms an upper space R3 above the control box 20, that is, above the control board 24, it is possible to secure a work space for exchanging the control board 24. In particular, it is possible to access the control board 24 from the front side of the housing 3 without removing the top plate 11 , which is advantageous when there is an obstacle above the top plate 11 .
　遮水壁３０は、平面視した場合に制御基板の周囲を取り囲むように立設された側壁部３０ａ，３０ｂ，３０ｃを備えているので、制御基板２４の上方の上方空間Ｒ３に入り込む雨水等の水を効果的に遮ることができる。 The water impermeable wall 30 includes side walls 30a, 30b, and 30c erected so as to surround the periphery of the control board when viewed from above. It can effectively block water.
　遮水壁３０によって囲まれた上方空間Ｒ３が空洞とされているので、制御基板２４の交換時に作業用空間として利用することができる。 Since the upper space R3 surrounded by the impermeable wall 30 is hollow, it can be used as a working space when the control board 24 is replaced.
　遮水壁３０には、筐体３の正面側にアクセス用開口３０ｄが形成されており、制御基板２４にアクセス可能とされているので、筐体３の天板１１側から制御基板２４にアクセスせずに制御基板２４の交換を行うことができる。 The impermeable wall 30 is formed with an access opening 30d on the front side of the housing 3, so that the control board 24 can be accessed. Therefore, the control board 24 can be replaced without having to replace it.
　室外ファン５が設けられたファン室Ｒ２に連通する通気口３０ｂ１，３３を遮水壁３０と接続部材３２に形成することによって、制御基板２４の上方の上方空間Ｒ３から室外ファン５に向かう流れを形成することとした。これにより、制御基板２４の温度上昇を抑制することができる。 By forming the air vents 30b1 and 33 communicating with the fan chamber R2 in which the outdoor fan 5 is provided in the impermeable wall 30 and the connecting member 32, the flow from the upper space R3 above the control board 24 to the outdoor fan 5 is controlled. It was decided to form Thereby, the temperature rise of the control board 24 can be suppressed.
　天板１１と仕切板１５の上部との間で荷重を受けるように遮水壁３０を設けることとしたので、室外機１の強度を向上させることができる。また、遮水壁３０が荷重を受けるので、制御ボックス２０ひいては制御基板２４に大きな荷重が加わることがない。 Since the impermeable wall 30 is provided so as to receive the load between the top plate 11 and the upper part of the partition plate 15, the strength of the outdoor unit 1 can be improved. Moreover, since the impermeable wall 30 receives the load, the control box 20 and the control board 24 are not subjected to a large load.
　遮水壁３０は、制御基板２４に設けた放熱フィン２４ａと室外ファンとの間の経路を避けるように設けられている。これにより、放熱フィン２４ａから室外ファン５に向かう流体の流れを円滑に形成することができ、冷却効率を向上させることができる。 The impermeable wall 30 is provided so as to avoid the path between the heat radiation fins 24a provided on the control board 24 and the outdoor fan. As a result, the fluid can smoothly flow from the radiation fins 24a toward the outdoor fan 5, and the cooling efficiency can be improved.
　以上説明した各実施形態に記載の室外機は、例えば以下のように把握される。 The outdoor units described in each of the embodiments described above are understood, for example, as follows.
　本開示の一態様に係る室外機（１）は、外気を導入する室外ファン（５）と、冷媒を圧縮する圧縮機（１３）と、前記室外ファン及び／又は前記圧縮機を制御する電装部品（２４ｃ）が設けられた制御基板（２４）と、前記制御基板を収容する制御ボックス（２０）と、前記室外ファン、前記圧縮機、前記制御基板及び前記制御ボックスを収容する筐体（３）と、前記筐体の天板（１１）との間で空間（Ｒ３）を形成するように該天板から前記制御ボックスを隔離する隔離部材（３０，３２）と、を備え、前記制御基板は、前記隔離部材が前記筐体側に固定された状態で取り外し可能とされている。 An outdoor unit (1) according to an aspect of the present disclosure includes an outdoor fan (5) that introduces outside air, a compressor (13) that compresses a refrigerant, and electrical components that control the outdoor fan and/or the compressor. A control board (24) provided with (24c), a control box (20) containing the control board, and a housing (3) containing the outdoor fan, the compressor, the control board and the control box. and isolation members (30, 32) for isolating the control box from the top plate (11) of the housing so as to form a space (R3) between the top plate (11), wherein the control board is , the isolation member is removable in a state of being fixed to the housing.
　制御ボックスの上方に、天板との間に空間を形成するように隔離部材を設けることとした。これにより、制御ボックスの上方に作業空間を確保することができ、制御基板の交換等の作業が容易となる。また、制御基板の電装部品から発生した熱が上方空間へ散逸し、電装部品の温度上昇を抑制することができる。
　制御基板は、隔離部材が筐体側に固定された状態で取り外し可能とすることができる。これにより、制御基板を交換する際に、隔離部材を筐体から取り外すことなく制御基板を取り外すことができる。
　隔離部材によって制御ボックスの上方すなわち制御基板の上方に空間が形成されるので、制御基板を交換する際の作業空間を確保することができる。特に、天板を取り外さずに筐体の正面側から制御基板にアクセスすることが可能となるので、天板の上方に障害物がある場合に有利である。 A separation member is provided above the control box so as to form a space between it and the top plate. As a result, a work space can be secured above the control box, and work such as replacement of the control board can be facilitated. In addition, the heat generated from the electrical components of the control board is dissipated to the upper space, and the temperature rise of the electrical components can be suppressed.
The control board can be detachable with the separating member fixed to the housing. Accordingly, when replacing the control board, the control board can be removed without removing the isolation member from the housing.
Since the separating member forms a space above the control box, that is, above the control board, it is possible to secure a working space for exchanging the control board. In particular, it is possible to access the control board from the front side of the housing without removing the top plate, which is advantageous when there is an obstacle above the top plate.
　本開示の一態様に係る室外機では、前記隔離部材は、平面視した場合に前記制御基板の周囲を取り囲むように立設された側壁部（３０ａ，３０ｂ，３０ｃ）を備えている。 In the outdoor unit according to one aspect of the present disclosure, the isolation member includes side walls (30a, 30b, 30c) erected to surround the control board in plan view.
　隔離部材は、平面視した場合に制御基板の周囲を取り囲むように立設された側壁部を備えているので、制御基板の上方の空間に入り込む雨水等の水を遮る遮水壁として用いることができる。 Since the isolation member has a side wall portion that is erected so as to surround the periphery of the control board when viewed from above, it can be used as a water impermeable wall that blocks water such as rainwater from entering the space above the control board. can.
　本開示の一態様に係る室外機では、前記隔離部材は、前記筐体の正面側に形成されて前記制御基板にアクセス可能な開口（３０ｄ）が形成されている。 In the outdoor unit according to one aspect of the present disclosure, the isolation member is formed on the front side of the housing and has an opening (30d) that allows access to the control board.
　隔離部材には筐体の正面側に開口が形成されており、制御基板にアクセス可能とされているので、筐体の天板側から制御基板にアクセスせずに制御基板の交換を行うことができる。 The isolation member has an opening formed on the front side of the housing so that the control board can be accessed, so that the control board can be replaced without accessing the control board from the top plate side of the housing. can.
　本開示の一態様に係る室外機では、前記側壁部によって囲まれた空間が空洞とされている。 In the outdoor unit according to one aspect of the present disclosure, the space surrounded by the side walls is hollow.
　側壁部によって囲まれた空間が空洞とされているので、制御基板の交換時に作業用空間として利用することができる。 Since the space surrounded by the side walls is hollow, it can be used as a working space when replacing the control board.
　本開示の一態様に係る室外機では、前記隔離部材には、前記室外ファンが設けられた空間に連通する通気口（３０ｂ１，３３）が形成されている。 In the outdoor unit according to one aspect of the present disclosure, the isolation member is formed with vents (30b1, 33) that communicate with the space provided with the outdoor fan.
　室外ファンが設けられた空間に連通する通気口を隔離部材に形成することによって、制御基板の上方の空間から室外ファンに向かう流れを形成することとした。これにより、制御基板の温度上昇を抑制することができる。 By forming a vent in the isolation member that communicates with the space in which the outdoor fan is installed, a flow is formed from the space above the control board toward the outdoor fan. Thereby, the temperature rise of the control board can be suppressed.
　本開示の一態様に係る室外機では、前記室外ファンが設けられたファン室（Ｒ２）と前記圧縮機が設けられた機械室（Ｒ１）とを仕切る仕切板（１５）が前記筐体の底部から上方に向かって立設され、前記隔離部材は、前記天板と前記仕切板の上部との間で荷重を受けるように設けられている。 In the outdoor unit according to one aspect of the present disclosure, a partition plate (15) separating a fan room (R2) provided with the outdoor fan and a machine room (R1) provided with the compressor is provided at the bottom of the housing. The separation member is provided to receive a load between the top plate and the upper portion of the partition plate.
　天板と仕切板の上部との間で荷重を受けるように隔離部材を設けることとしたので、室外機の強度を向上させることができる。また、隔離部材が荷重を受けるので、制御ボックスひいては制御基板に大きな荷重が加わることがない。 The isolation member is provided so as to receive the load between the top plate and the upper part of the partition plate, so the strength of the outdoor unit can be improved. Moreover, since the isolation member receives the load, the control box and the control board are not subjected to a large load.
　本開示の一態様に係る室外機では、前記制御基板に固定された放熱フィン（２４ａ）を備え、前記放熱フィンと前記室外ファンとの間の経路を避けるように前記隔離部材が設けられている。 The outdoor unit according to one aspect of the present disclosure includes heat radiation fins (24a) fixed to the control board, and the isolation member is provided so as to avoid a path between the heat radiation fins and the outdoor fan. .
　制御基板に放熱フィンが固定されている。放熱フィンは、基板に設けられたＣＰＵ等の電装部品を冷却する。隔離部材は、放熱フィンと室外ファンとの間の経路を避けるように設けられている。これにより、放熱フィンから室外ファンに向かう流体の流れを円滑に形成することができ、冷却効率を向上させることができる。 　Radiating fins are fixed to the control board. The radiation fins cool electrical components such as a CPU provided on the board. The isolation member is provided so as to avoid a path between the heat radiation fins and the outdoor fan. As a result, the fluid can smoothly flow from the radiation fins to the outdoor fan, and the cooling efficiency can be improved.
１　室外機
３　筐体
５　室外ファン
７　ファンガード
９　サービスパネル
１０　背面パネル
１１　天板
１２　サイドパネル
１３　圧縮機
１５　仕切板
１５ａ　上端
１６　底板
１７　室外熱交換器
２０　制御ボックス
２２　枠体
２２ａ　上枠
２２ａ１　座部
２２ｂ　下枠
２２ｃ　放熱フィン用開口
２２ｄ　端子台
２２ｅ　爪部
２３　ビス
２４　制御基板
２４ａ　放熱フィン
２４ｂ　基板本体
２４ｃ　電装部品
２４ｄ　ビス穴
２６　カバー部材
２６ａ　主面
２６ｂ　側部
２６ｂ１　突起部
３０　遮水壁（隔離部材）
３０ａ　第１側壁部
３０ａ１　接続片
３０ｂ　第２側壁部
３０ｂ１　通気口
３０ｃ　第３側壁部
３０ｃ１　接続片
３０ｄ　アクセス用開口
３０ｆ　下端
３２　接続部材（隔離部材）
３３　通気口
Ｒ１　機械室
Ｒ２　ファン室
Ｒ３　上方空間 1 outdoor unit 3 housing 5 outdoor fan 7 fan guard 9 service panel 10 rear panel 11 top plate 12 side panel 13 compressor 15 partition plate 15a upper end 16 bottom plate 17 outdoor heat exchanger 20 control box 22 frame body 22a upper frame 22a1 seat Part 22b Lower frame 22c Radiation fin opening 22d Terminal block 22e Claw 23 Screw 24 Control board 24a Radiation fin 24b Board main body 24c Electrical component 24d Screw hole 26 Cover member 26a Main surface 26b Side 26b1 Protrusion 30 Waterproof wall (separation Element)
30a First side wall portion 30a1 Connection piece 30b Second side wall portion 30b1 Vent 30c Third side wall portion 30c1 Connection piece 30d Access opening 30f Lower end 32 Connection member (separation member)
33 Vent R1 Machine room R2 Fan room R3 Upper space

Claims (7)

  1. 　外気を導入する室外ファンと、
    　冷媒を圧縮する圧縮機と、
    　前記室外ファン及び／又は前記圧縮機を制御する電装部品が設けられた制御基板と、
    　前記制御基板を収容する制御ボックスと、
    　前記室外ファン、前記圧縮機、前記制御基板及び前記制御ボックスを収容する筐体と、
    　前記筐体の天板との間で空間を形成するように該天板から前記制御ボックスを隔離する隔離部材と、
    　を備え、
    　前記制御基板は、前記隔離部材が前記筐体側に固定された状態で取り外し可能とされている室外機。     an outdoor fan for introducing outside air;
    a compressor that compresses a refrigerant;
    a control board provided with electrical components for controlling the outdoor fan and/or the compressor;
    a control box that houses the control board;
    a housing that houses the outdoor fan, the compressor, the control board, and the control box;
    an isolation member that isolates the control box from the top plate of the housing so as to form a space therebetween;
    with
    The outdoor unit, wherein the control board is detachable while the isolation member is fixed to the housing.
  2. 　前記隔離部材は、平面視した場合に前記制御基板の周囲を取り囲むように立設された側壁部を備えている請求項１に記載の室外機。 The outdoor unit according to claim 1, wherein the isolation member has a side wall portion erected so as to surround the control board when viewed from above.
  3. 　前記側壁部によって囲まれた空間が空洞とされている請求項２に記載の室外機。 The outdoor unit according to claim 2, wherein the space surrounded by the side walls is hollow.
  4. 　前記隔離部材は、前記筐体の正面側に形成されて前記制御基板にアクセス可能な開口が形成されている請求項１から３のいずれかに記載の室外機。 The outdoor unit according to any one of claims 1 to 3, wherein the separating member is formed on the front side of the housing and has an opening through which the control board can be accessed.
  5. 　前記隔離部材には、前記室外ファンが設けられた空間に連通する通気口が形成されている請求項１から４のいずれかに記載の室外機。 The outdoor unit according to any one of claims 1 to 4, wherein the isolation member is formed with a vent that communicates with the space in which the outdoor fan is provided.
  6. 　前記室外ファンが設けられたファン室と前記圧縮機が設けられた機械室とを仕切る仕切板が前記筐体の底部から上方に向かって立設され、
    　前記隔離部材は、前記天板と前記仕切板の上部との間で荷重を受けるように設けられている請求項１から５のいずれかに記載の室外機。     A partition plate for partitioning a fan room in which the outdoor fan is provided and a machine room in which the compressor is provided is erected upward from the bottom of the housing,
    The outdoor unit according to any one of claims 1 to 5, wherein the separation member is provided so as to receive a load between the top plate and the upper portion of the partition plate.
  7. 　前記制御基板に固定された放熱フィンを備え、
    　前記放熱フィンと前記室外ファンとの間の経路を避けるように前記隔離部材が設けられている請求項１から６のいずれかに記載の室外機。     A heat radiating fin fixed to the control board,
    The outdoor unit according to any one of claims 1 to 6, wherein the isolation member is provided so as to avoid a path between the heat radiation fins and the outdoor fan.
PCT/JP2022/005197 2021-05-13 2022-02-09 Outdoor unit WO2022239336A1 (en)

Priority Applications (2)

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EP22807043.9A EP4321811A1 (en) 2021-05-13 2022-02-09 Outdoor unit
AU2022274345A AU2022274345A1 (en) 2021-05-13 2022-02-09 Outdoor unit

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Application Number Priority Date Filing Date Title
JP2021-081630 2021-05-13
JP2021081630A JP2022175321A (en) 2021-05-13 2021-05-13 Outdoor unit

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0352527U (en) * 1989-09-22 1991-05-22
JP2001281286A (en) 2000-03-30 2001-10-10 Mitsubishi Electric Corp Gate generating circuit, semiconductor measuring instrument, and semiconductor measuring method
JP2009097743A (en) * 2007-10-15 2009-05-07 Panasonic Corp Outdoor unit of air conditioner
JP2011094926A (en) 2009-10-30 2011-05-12 Fujitsu General Ltd Outdoor unit for air conditioner

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0352527U (en) * 1989-09-22 1991-05-22
JP2001281286A (en) 2000-03-30 2001-10-10 Mitsubishi Electric Corp Gate generating circuit, semiconductor measuring instrument, and semiconductor measuring method
JP2009097743A (en) * 2007-10-15 2009-05-07 Panasonic Corp Outdoor unit of air conditioner
JP2011094926A (en) 2009-10-30 2011-05-12 Fujitsu General Ltd Outdoor unit for air conditioner

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EP4321811A1 (en) 2024-02-14
AU2022274345A1 (en) 2023-11-30
JP2022175321A (en) 2022-11-25

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