WO2021181677A1 - 電気品箱及びヒートポンプ装置 - Google Patents

電気品箱及びヒートポンプ装置 Download PDF

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Publication number
WO2021181677A1
WO2021181677A1 PCT/JP2020/011182 JP2020011182W WO2021181677A1 WO 2021181677 A1 WO2021181677 A1 WO 2021181677A1 JP 2020011182 W JP2020011182 W JP 2020011182W WO 2021181677 A1 WO2021181677 A1 WO 2021181677A1
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WO
WIPO (PCT)
Prior art keywords
layer
main body
component box
electrical component
layer main
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2020/011182
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English (en)
French (fr)
Japanese (ja)
Inventor
喜浩 谷口
基志 那須
浩司 陸川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to PCT/JP2020/011182 priority Critical patent/WO2021181677A1/ja
Priority to JP2022505704A priority patent/JP7337250B2/ja
Publication of WO2021181677A1 publication Critical patent/WO2021181677A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems

Definitions

  • the present disclosure relates to an electric component box and a heat pump device of a heat pump device on which a compressor, a heat exchanger, etc. are mounted, and particularly to an electric component box of an outdoor unit on which a substrate is mounted.
  • the electrical component box of the outdoor unit of the heat pump device is equipped with a compressor, heat exchanger, electronic expansion valve, pressure sensor, refrigerant piping, electrical component box, etc., and is a central control mechanism that controls the overall system of the heat pump device. It also has a control power supply mechanism that supplies power to each electrical product.
  • the outdoor unit includes a power conversion mechanism that drives a compressor motor and a fan motor, a communication mechanism that controls communication with the outside and the inside, a noise removal mechanism that removes noise, and a cooling mechanism that cools electric and electronic parts that generate heat. Etc. A plurality of electronic boards constituting these mechanisms are mounted on an electric component box.
  • Patent Document 1 discloses a technique in which a rotation fulcrum such as a hinge is provided in such a multi-layered electrical component box so that the control box on the front side and the control box on the back side can be opened and closed.
  • Patent Document 1 the serviceability of maintenance work is improved by facilitating access to the electrical and electronic parts mounted on the control box on the back side, but the assembleability at the manufacturing stage and the assembling stage is considered. I wasn't. At the manufacturing stage, it is necessary to connect the wiring between a plurality of electronic boards and the like which are arranged in a plurality of layers of the electric component box. Further, at the stage of assembling to the outdoor unit, it is necessary to incorporate the electric component box into the housing of the outdoor unit and then connect it to the refrigerant control component of the outdoor unit.
  • the main parts on the substrate are arranged so as to be exposed to the front side.
  • electrical and electronic components such as an electronic board are attached to a control box on the back side, and wiring is connected to these electrical and electronic components.
  • the wiring connected to the electrical and electronic components the one that connects to the control box on the front side is temporarily fixed, and the control box on the front side is attached to the control box on the back side. After that, the temporarily fixed wiring is connected to the electrical and electronic parts of the control box on the front side.
  • the electric component box having a hierarchical structure it may be difficult to perform the assembly work because the wiring straddling the control box on the back side and the control box on the front side is complicatedly attached at the manufacturing stage. Further, at the stage of assembling to the outdoor unit or during maintenance, depending on the arrangement of the electronic board, it may be difficult to make a wiring connection between the electric / electronic parts inside the electric component box and the refrigerant control parts of the outdoor unit. ..
  • the present disclosure has been made to solve such a problem, and an object of the present invention is to obtain an electric component box and a heat pump device having both serviceability and assembling property.
  • the electric component box according to the present disclosure is an electric component box of an outdoor unit having a refrigerant control component for controlling the state of the refrigerant in the refrigerant circuit, and has an opening surface and is composed of a first layer main body and a second layer main body. It controls the electric component box main body and the refrigerant control component, and controls the second layer substrate portion attached to the second layer main body and the refrigerant control component, and controls the first layer.
  • the first layer electric component attached to the main body and a rotation fulcrum connecting the first layer main body and the second layer main body are provided, and the second layer main body is the first layer main body by the rotation fulcrum.
  • the second layer substrate portion has a first surface on the opening surface side and a second surface which is the back surface of the first surface, and the refrigerant is on the first surface.
  • a first connector connected to the control component is provided, and a second connector connected to the first layer electrical component is provided on the second surface.
  • the electric component box according to the present disclosure is a first layer in which the main body of the electric component box is divided into two in the electric component box of the outdoor unit having a housing and a refrigerant control component for controlling the state of the refrigerant in the refrigerant circuit.
  • the main body, the second layer main body, and the refrigerant control component are controlled, and the electronic substrate attached to the first layer main body and the refrigerant control component are controlled, and the second layer main body is controlled.
  • the first layer main body is fixed to the housing.
  • the second layer main body can be opened and closed with respect to the first layer main body by the rotation fulcrum, and the surface of the electronic substrate facing the second layer electric component is connected to the refrigerant control component.
  • a first connector is provided.
  • the heat pump device according to the present disclosure is provided with the above-mentioned electric component box.
  • both serviceability and assembling property can be achieved at the same time.
  • FIG. It is a schematic front view which shows the appearance of the outdoor unit in the state which mounted the electric component box which concerns on Embodiment 1.
  • FIG. It is an electric circuit diagram of the electric component box which concerns on Embodiment 1.
  • FIG. It is a simple display figure of the electric component box which concerns on Embodiment 1.
  • FIG. It is a simple display figure which shows the form at the time of assembling the electric component box which concerns on Embodiment 1.
  • FIG. It is a simple display figure which shows the form at the time of assembling into the outdoor unit in the electric component box which concerns on Embodiment 1.
  • FIG. It is a rear view of the electric component box of FIG. It is a simple display figure which shows the form at the time of assembling the electric component box which concerns on Embodiment 2.
  • FIG. 16 is a side view showing a state in which the lid portion of the electrical component box of FIG. 16 is closed.
  • FIG. 1 is a schematic front view showing the appearance of the outdoor unit in a state where the electrical component box according to the first embodiment is mounted.
  • FIG. 2 is an electric circuit diagram of the electric component box according to the first embodiment. In FIG. 1, the direction of air flow is indicated by a white arrow.
  • the configuration of the outdoor unit will be described with reference to FIGS. 1 and 2.
  • the outdoor unit 600 includes a housing 600a, a compressor 601, an outdoor heat exchanger 604, a first fan 602, a second fan 603, a pressure sensor 605a, and an electric component box 1. .. Further, the outdoor unit 600 includes a first fan motor 602a for driving the first fan 602 and a second fan motor 603a for driving the second fan 603. As shown in FIG. 2, the electrical component box 1 is connected to various sensors 605.
  • the various sensors 605 are a pressure sensor 605a mounted on the outdoor unit 600, a temperature sensor provided on the outdoor unit 600 or an indoor unit (not shown), and the like.
  • the housing 600a has, for example, a rectangular parallelepiped shape.
  • the housing 600a is composed of a bottom surface portion, a plurality of side panels, a top panel, and the like, and the plurality of side panels and the top panel are removable.
  • a suction port is formed on the side panel, and an air outlet is formed on the top panel.
  • the arrow X direction in FIG. 1 represents the width direction of the outdoor unit 600
  • the arrow Y direction represents the depth direction of the outdoor unit 600
  • the arrow Z direction represents the height direction of the outdoor unit 600.
  • the compressor 601 sucks in the refrigerant and compresses it into a high temperature and high pressure state.
  • the compressor 601 is an inverter compressor having a compressor main body 601b and a compressor motor 601a for driving the compressor main body 601b, and whose capacity can be controlled.
  • the rotation speed of the compressor body 601b is controlled by driving the compressor motor 601a by changing the frequency of the inverter according to the speed command of the control device described later.
  • the first fan 602 is driven by the first fan motor 602a so that the air volume can be freely adjusted, and blows air to the outdoor heat exchanger 604.
  • the second fan 603 is driven by the second fan motor 603a so that the air volume can be freely adjusted, and blows air to the outdoor heat exchanger 604 in the same manner as the first fan 602.
  • the first fan 602 and the second fan 603 are each composed of, for example, a propeller fan.
  • the outdoor heat exchanger 604 exchanges heat between the refrigerant and air.
  • the outdoor heat exchanger 604 is arranged on each of the four front, rear, left, and right sides of the housing 600a of the outdoor unit 600, and the first fan 602 and the second fan 603 are the upper portions of the outdoor unit 600. It is provided in.
  • the first fan 602 and the second fan 603 When at least one of the first fan 602 and the second fan 603 is being driven, air is sucked into the housing 600a through the suction port of the side panel, and the housing is sucked through the air outlet of the top panel. Air is blown out of 600a.
  • the air exchanges heat with the refrigerant in the outdoor heat exchanger 604 arranged along the side surface of the outdoor unit 600, and goes out of the housing 600a from the air outlet provided on the top panel of the housing 600a. Blow out.
  • the outdoor unit 600 is connected to an indoor unit (not shown) equipped with an indoor heat exchanger and a decompression device via a refrigerant pipe, and includes a compressor 601, an outdoor heat exchanger 604, an indoor heat exchanger, and the like.
  • a refrigerant circuit is formed by connecting a decompressor and the like via a refrigerant pipe.
  • the refrigerant control parts and the electrical and electronic parts are placed below the heat exchanger to avoid the air passage so that the air volume passing through the housing 600a is not obstructed. It is desirable to be placed.
  • the refrigerant control component is a component such as a compressor 601, a pressure sensor 605a, and a solenoid valve used for controlling the state of the refrigerant circulating in the refrigerant circuit.
  • the electric / electronic component is a component that controls the above-mentioned refrigerant control component, and is a component included in the electrical component box 1 that constitutes the control device. Since the refrigerant control component is connected to the electric component box 1 by wiring, it is desirable that the refrigerant control component is arranged near the electric component box 1.
  • the front surface is a service surface on which an operator performs work
  • the portion provided below the outdoor heat exchanger 604 in the right half of the front surface of the housing 600a is a service panel 600a1.
  • the service panel 600a1 is a removable panel.
  • the electric component box 1 is arranged in the space on the right side in the housing 600a of the outdoor unit 600. That is, the electrical component box 1 is located behind the service panel 600a1 in the outdoor unit 600, and when a service such as maintenance or repair of the electrical component box 1 is performed, the operator can remove the service panel 600a1. You can access the electrical box 1.
  • the electric component box 1 when the electric component box 1 is incorporated into the outdoor unit 600, the electric component box 1 is incorporated into the housing 600a via the service surface in a state where the service panel 600a1 of the housing 600a is removed. That is, the service panel 600a1 constitutes a part of the front surface of the housing 600a at a position facing the electrical component box 1, and the housing 600a can be opened and closed.
  • FIG. 3 is a simplified display diagram of the electrical component box according to the first embodiment.
  • the electrical component box 1 is configured by attaching a plurality of electrical components, a plurality of substrates, and the like to an electrical component box main body made of a metal case.
  • the electrical component box 1 is a control device for the heat pump device, and controls the operation of the heat pump device by a plurality of electrical and electronic components.
  • a plurality of electric parts and the like are arranged in a plurality of layers in the main body of the electric component box, and the electric component box 1 includes a first layer portion 10, a second layer portion 20, a rotation fulcrum 30, and a lid. It is composed of parts 40 and the like.
  • the first layer portion 10 and the second layer portion 20 are connected so as to be openable and closable by a rotation fulcrum 30.
  • the rotation fulcrum 30 is provided on the left side of the first layer portion 10, and the second layer portion 20 is configured to open to the left with respect to the first layer portion 10. Since the electrical component box 1 is composed of a plurality of layers, it is possible to reduce the size of the electrical component box 1 and improve the degree of freedom in shape.
  • the rotation fulcrum 30 is composed of, for example, a hinge.
  • the rotation fulcrum 30 is made of weather-resistant stainless steel, plated metal, or the like to prevent rust. Further, the rotation fulcrum 30 is preferably painted when corrosion resistance such as salt damage or a sulfur atmosphere is required. Alternatively, the rotation fulcrum 30 may be made of a ceramic or resin molded product.
  • the position where the rotation fulcrum 30 is provided in the electrical component box 1 is not limited to the above-mentioned position.
  • the rotation fulcrum 30 may be provided so as to be located inside the main body of the electric component box, or may be provided so as to be located outside the main body of the electric component box.
  • FIG. 4 is a simplified display diagram showing a mode at the time of assembling the electrical component box according to the first embodiment.
  • FIG. 5 is a simplified display diagram showing a mode when the electrical component box according to the first embodiment is incorporated into an outdoor unit.
  • FIG. 5 shows an electrical component box with the lid 40 removed. With the first layer portion 10 and the second layer portion 20 of the electrical component box 1 closed, the electrical component box 1 is located on the back side of the outdoor unit 600 so that the first layer portion 10 is located on the back side of the outdoor unit 600. Is incorporated into the outdoor unit 600, and the first layer portion 10 is fixed to the housing 600a of the outdoor unit 600.
  • the arrow X direction, the arrow Y direction, and the arrow Z direction are the width direction, the depth direction, and the height direction of the first layer portion 10 in the state where the electric component box 1 is incorporated in the outdoor unit 600, respectively. Represents. Further, in the following description, the width direction of the first layer portion 10 and the width direction of the outdoor unit 600, the depth direction of the first layer portion 10 and the depth direction of the outdoor unit 600, and the height direction of the first layer portion 10 It is assumed that the outdoor unit 600 has the same height direction and width direction as each other.
  • the electrical component box 1 includes a power supply terminal block 12, a noise filter board 13, an inverter, a power supply board 24, a control board 22, and the like.
  • the inverter includes a plurality of inverter boards such as a first inverter board 14, a second inverter board 15, and a third inverter board 16.
  • the solid line arrow indicates the direction in which power is supplied in the strong electric wire
  • the broken line arrow indicates the direction in which control power is supplied or the electric signal is transmitted in the weak electric wire
  • the one-point chain line arrow indicates communication data in the communication line 53. Indicates the direction in which is transmitted.
  • the noise filter substrate 13 is equipped with, for example, a common mode choke coil or the like, and reduces the noise of electricity supplied from the three-phase AC power supply 500.
  • the first inverter board 14 mounts a power device or the like that controls the compressor motor 601a, and supplies the compressor motor 601a with a three-phase output having a variable frequency and a variable voltage.
  • the second inverter board 15 mounts a power device or the like that controls the first fan motor 602a, and supplies the first fan motor 602a with a three-phase output of a variable frequency and a variable voltage.
  • the third inverter board 16 mounts a power device or the like that controls the second fan motor 603a, and supplies the second fan motor 603a with a three-phase output having a variable frequency and a variable voltage.
  • the power supply board 24 is equipped with a power supply circuit that converts the three-phase AC power supply 500 into a DC power supply and supplies control power to each part.
  • the power supply board 24 is provided with a third connector 241 or the like that is connected to the electrical and electronic components of the first layer portion 10.
  • the electrical / electronic component of the first layer portion 10 may be referred to as a first layer electrical component.
  • the control board 22 is equipped with a control circuit that controls the operation of each part.
  • the control board 22 is provided with a first connector 221 connected to the refrigerant control component, a second connector 222 connected to the first layer electric component, and the like.
  • the control board 22 is provided with a communication unit 23 that communicates with external and internal devices, a display unit 224 composed of a liquid crystal display and the like, an operation unit 225 composed of a plurality of switches and the like.
  • the power supply terminal block 12 connected to the three-phase AC power supply 500 is connected to the noise filter board 13 by a strong electric wire. Further, the noise filter board 13 is connected to the first inverter board 14, the second inverter board 15, the third inverter board 16, the power supply board 24, and the control board 22 via a plurality of strong electric wires.
  • the first inverter board 14 connected to the compressor motor 601a is configured to control a current larger than the current controlled by each of the second inverter board 15 and the third inverter board 16.
  • the power supply board 24 is connected to the control board 22, the first inverter board 14, the second inverter board 15, and the third inverter board 16 via a plurality of weak electric wires.
  • the control board 22 is connected to various sensors by weak electric wires, and electric signals from various sensors 605 are input to the control board 22 via the weak electric wires.
  • the control board 22 is connected to the first inverter board 14, the second inverter board 15, the third inverter board 16 and the power supply board 24 via a plurality of communication lines 53, and outputs a control command to each board. There is.
  • the control board 22 has a communication unit 23 for communicating with external and internal devices, and a communication line 53 whose one end is connected to the communication unit 23 is pulled out of the electrical component box 1.
  • the above-mentioned strong electric wire and weak electric wire may be simply referred to as an electric wire 51, and the electric wire 51, the communication line 53, and the connection line 54 with the refrigerant control component are not distinguished. Sometimes it is simply wiring.
  • the electric component box main body has a substantially rectangular parallelepiped box shape with an open front surface.
  • the open front surface of the electrical component box main body is referred to as a first opening surface 31.
  • the first opening surface 31 of the electric component box main body is arranged so as to face the service surface of the housing 600a.
  • a lid 40 made of sheet metal is detachably attached to the main body of the electrical component box via screws or the like.
  • the first opening surface 31 of the electric component box main body is closed by the lid portion 40 to prevent rainwater, dust, etc. from entering the electric component box main body.
  • a hinge for connecting the lid 40 and the main body of the electrical component box may be further provided, and the lid 40 may open and close the first opening surface 31 by a rotation fulcrum. In this case, serviceability can be improved.
  • the electrical component box main body is divided into two in the depth direction (arrow Y direction), and has a first layer main body 11 on the back side and a second layer main body 21 on the front side. That is, when the electrical component box main body is viewed from the front, the sizes of the first layer main body 11 and the second layer main body 21 are substantially the same.
  • the first layer main body 11 is composed of sheet metal arranged on four side surfaces, top, bottom, left and right, and a back surface, and has a box shape with an open front surface.
  • the opening on the front surface of the second layer main body 21 is the first opening surface 31 in the electric component box main body.
  • the second layer main body 21 is made of sheet metal arranged on four side surfaces of upper, lower, left and right, and has a frame shape in which the front surface and the back surface are open.
  • the open back surface of the second layer main body 21 is referred to as a second opening surface 32
  • the open front surface of the first layer main body 11 is referred to as a third opening surface 33.
  • a part of a plurality of electrical and electronic parts (first layer electric parts) included in the electric component box is attached to the first layer main body 11 to form the first layer portion 10 described above, and the second layer main body 21
  • the remaining components of the plurality of electrical and electronic components are attached to the second layer portion 20.
  • FIG. 5 in a state where the first layer portion 10 and the second layer portion 20 are closed, the edge portion of the second opening surface 32 in the second layer main body 21 and the third opening surface in the first layer main body 11 The edges of 33 face each other.
  • the electric component box 1 is provided with a water stop member 57 for stopping water at each opening formed in the main body of the electric component box.
  • the water blocking member 57 is made of, for example, a foam sealing material such as an Ept sealer or a rubber material.
  • the water blocking member 57 includes an edge of the third opening surface 33 in the first layer main body 11 as shown in FIG. 3 and an edge of the first opening surface 31 in the second layer main body 21 as shown in FIG. It is attached to the part.
  • the water stop member 57 suppresses the intrusion of rainwater or the like from each opening surface between the first layer main body 11 and the second layer main body 21 and between the second layer main body 21 and the lid portion 40.
  • Flange is formed on the edge of the third opening surface 33 in the first layer main body 11 and the edge of the first opening surface 31 in the second layer main body 21 as a sticking allowance to which the water blocking member 57 is stuck. ing.
  • the flange may be formed by bending the sheet metal constituting the first layer main body 11 and the second layer main body 21, respectively, or may be formed of another sheet metal.
  • the water blocking member 57 may be attached to the edge of the second opening surface 32 of the second layer main body 21 and the back edge of the lid 40. In this case as well, the same effect as in the above case can be obtained.
  • the sheet metal forming the first layer main body 11 and the sheet metal forming the second layer main body 21 are each formed with wiring holes through which one or a plurality of wirings are passed, and rubber bushes 56 are provided in the wiring holes. There is.
  • the position of providing the wiring hole in the first layer main body 11 and the second layer main body 21 is selected according to the position of the electrical and electronic component to which the wiring is connected.
  • the wiring holes are formed in the sheet metal forming the lower surface of the first layer main body 11 and the sheet metal forming the lower surface of the second layer main body 21, respectively.
  • the wiring holes may be formed on the side surfaces of the first layer main body 11 and the second layer main body 21 where the rotation fulcrum 30 is provided.
  • the first layer portion 10 contains a heavy object and a heat generating component that requires active cooling among a plurality of electrical and electronic components.
  • the heat generating components that require active cooling are power devices and the like mounted on the first inverter board 14, the second inverter board 15, and the third inverter board 16, respectively.
  • the first inverter board 14 includes heat-generating components such as a rectifier circuit, an IGBT module, a boost converter, a step-down converter, a three-terminal regulator for power supply, a main circuit capacitor, and a reactor.
  • Each of the second inverter board 15 and the third inverter board 16 also includes heat-generating components similar to those of the first inverter board 14.
  • the first layer portion 10 includes a power supply terminal block 12 and a noise filter substrate 13 among a plurality of electrical and electronic components.
  • the electrical component box 1 is configured so that the weight of the first layer portion 10 is heavier than the weight of the second layer portion 20.
  • the gravity of the inverter may be heavier than that of the second layer portion 20.
  • FIG. 6 is a rear view of the electrical component box of FIG.
  • the first layer portion 10 includes a cooling member 300 such as a heat sink.
  • the first inverter board 14, the second inverter board 15, and the third inverter board 16 are attached to the first layer main body 11 so that the thermal resistance between the heat radiating surface of each of the heat generating components and the cooling member 300 described above becomes small.
  • the back surfaces of the first inverter board 14, the second inverter board 15, and the third inverter board 16 are arranged so as to come into contact with the inner surface of the sheet metal constituting the back surface of the first layer portion 10 main body.
  • the cooling member 300 is arranged on the outer surface of the sheet metal forming the back surface of the first layer main body 11.
  • the heat generating component may be cooled by the top flow wind generated by the first fan 602 and the second fan 603, or the plurality of inverter boards may be air-cooled.
  • a shaft flow fan may be provided separately.
  • the cooling member 300 is not limited to the heat sink.
  • a refrigerant cooler is provided so as to come into contact with the heat radiating surface of the heat generating component, and the heat generating component is cooled by flowing a part or the entire flow rate of the refrigerant flowing in the housing 600a of the outdoor unit 600 to the refrigerant cooler. It may be.
  • an electronic expansion valve is provided in the pipe provided with the refrigerant cooler branched from the main circuit to control the flow rate of the refrigerant flowing to the refrigerant cooler. As a result, the amount of cooling can be adjusted.
  • the electronic expansion valve is one of the above-mentioned refrigerant control components, and is preferably arranged below the outdoor heat exchanger 604 in the outdoor unit 600.
  • the cooling amount is improved by using a heat pipe that uses water to transfer the heat to the position where the wind blows. Can be made to. Further, in order to reduce the thermal resistance between the cooling member 300 and the heat-generating component, heat-dissipating grease or sheet using a carbon-based material, silicon, or acrylic is interposed between the cooling member 300 and the heat-generating component. May be good.
  • the electrical component box 1 is equipped with a DC reactor 17 to improve the power factor. Since the DC reactor 17 is a heavy object and a heat generating component, it is included in the first layer portion 10. Specifically, the first layer main body 11 is provided with the sheet metal constituting the first layer main body 11. It is attached by a fastening member such as a screw so as to make thermal contact with the cooling member 300 via the cooling member 300.
  • the first inverter board 14 is placed on the first fan 602 and the second fan 602. It is better to place it at the position farthest from the fan 603. This is because the controlled current of the first inverter board 14 for driving the compressor motor 601a is larger than the current controlled by the second inverter board 15 and the third inverter board, and the amount of heat generated is also large.
  • the electric component box 1 is incorporated in the outdoor unit 600 from the second inverter board 15 and the third inverter board 16.
  • the first inverter board 14 is arranged below. With such a configuration, the cooling member 300 that cools the first inverter board 14 can be cooled by a lower temperature wind, the cooling member 300 can be downsized, and the quality of the first inverter board 14 can be improved.
  • the second layer portion 20 basically does not include a heat generating component, but includes a control board 22 and a power supply board 24.
  • the electronic substrate attached to the second layer main body 21 may be referred to as a “second layer substrate portion”.
  • the control board 22 and the power supply board 24 are the second layer board portions 220. That is, the second layer substrate portion 220 has a function of controlling the operation of the refrigerant control component and supplying a control power supply to the first layer electric component.
  • the second layer substrate portion 220 moves together with the second layer main body 21 when the second layer portion 20 is opened and closed.
  • the second layer portion 20 includes an auxiliary support column 201 that assists in fixing the control board 22, the power supply board 24, wiring, and the like to the second layer main body 21.
  • the auxiliary support column 201 can be freely fixed at a fixed position according to the size of each of the control board 22 and the power supply board 24 attached to the second layer main body 21.
  • the auxiliary support column 201 is, for example, a member extending in the vertical direction provided at a substantially central position in the width direction of the electrical component box 1, and has a second layer via an upper end portion and a lower end portion so that the left and right positions can be changed. It is attached to the inner surface of the main body 21.
  • control board 22 and the power supply board 24 are arranged side by side.
  • the control board 22 is arranged in the right half of the space inside the second layer main body 21, and the power supply board 24 is arranged in the left half closer to the rotation fulcrum 30 than the control board 22.
  • the control board 22 has a second layer so that the right side surface and the upper surface of the outer circumference of the control board 22 contact the inner surface of the second layer main body 21, and the left side surface of the outer circumference of the control board 22 contacts the right side surface of the auxiliary column 201. It is fixed to the main body 21.
  • the second layer of the power supply board 24 is such that the left side surface and the upper surface of the outer circumference of the power supply board 24 are in contact with the inner surface of the second layer main body 21, and the right side surface of the outer circumference of the power supply board 24 is in contact with the left side surface of the auxiliary support column 201. It is fixed to the main body 21.
  • the surface provided with the third connector 241 or the like connected to the first layer electric component is referred to as C surface 24C
  • S surface 24S the back surface of C surface 24C
  • the C surface 24C of the power supply board 24 is located on the second opening surface 32 side which is the back surface of the second layer main body 21, and is the S surface of the power supply board 24.
  • the 24S is located on the first opening surface 31 side, which is the front surface of the second layer main body 21.
  • the surface on which the display unit 224 is provided is referred to as C surface 22C
  • the back surface of C surface 22C is referred to as S surface 22S.
  • the C surface 22C of the control board 22 is located on the first opening surface 31 side which is the front surface of the second layer main body 21, and is the S surface of the control board 22.
  • 22S is located on the second opening surface 32 side, which is the back surface of the second layer main body 21.
  • each of the C surface 22C and the S surface 22S of the control board 22 is a surface on which a connector can be provided.
  • the electronic components of the control board 22 are soldered by reflow / reflow, and there is no difference in the components that can be mounted on the C surface 22C and the S surface 22S. Parts that do not support reflow / reflow are installed after the reflow / reflow process by a spot welder or the like. Further, the display unit 224, the operation unit 225, the communication unit 23, and the like are provided on the C surface 22C of the control board 22. In the control board 22, all the first connectors 221 to which the connecting line 54 with the refrigerant control component is connected are provided on the C surface 22C, and the second connector 222 connected to the first layer electric component is on the S surface 22S. It is provided.
  • the electric component box in the manufacturing stage of the electric component box 1, the electric component box is in a state where the first layer main body 11 and the second layer main body 21 are opened to the left and right by the rotation fulcrum 30. 1 is placed on the production line. Therefore, at the manufacturing stage of the electrical component box 1, the work of attaching electrical and electronic components to the first layer main body 11 and the second layer main body 21, or the work of attaching the wiring straddling the first layer main body 11 and the second layer main body 21 However, it can be easily done while checking the connection destination.
  • the wiring extending from the first layer main body 11 to the second layer main body 21 is connected after being once taken out of the electric component box 1 through the wiring hole formed in the lower part of the electric component box 1.
  • the rubber bush 56 provided in the wiring hole through which the wiring is passed further narrows the range of motion of the wiring, and it is possible to prevent water from entering the main body of the electrical component box and contact with the edge of the sheet metal.
  • the rubber bush 56 is provided at a position close to the rotation fulcrum 30, the range of motion of the wiring is further narrowed, and the effects of avoiding the intrusion of water and avoiding contact with the sheet metal are enhanced.
  • the power supply board 24 included in the second layer portion 20 and supplying power to the first layer portion 10 is also arranged at a position close to the rotation fulcrum 30 in which the rubber bush 56 is arranged. Since the output from the power supply board 24 is a weak electric power, it is preferable to arrange the output from the strong electric system boards such as the first inverter board 14, the second inverter board 15, and the third inverter board 16 from the viewpoint of noise propagation. Further, it is preferable that the strong electric wire is also arranged at a position away from the rotation fulcrum 30 in the main body of the electric component box.
  • the electrical component box 1 When the electrical component box 1 is incorporated into the outdoor unit 600, the electrical component box 1 is arranged in the housing 600a from the service side with the second layer portion 20 closed as shown in FIG.
  • the connection line 54 from the refrigerant control component is connected to the first connector 221 of the control board 22 of the second layer portion 20 after the electrical component box 1 is installed in the housing 600a by the operator. Since the first connector 221 is provided on the C surface 22C of the control board 22 arranged so as to face the first opening surface 31, the operator can use the second layer portion 20 with respect to the first layer portion 10. It can be assembled to the outdoor unit 600 without opening.
  • the electric component box 1 has the first opening surface 31, and includes the electric component box main body composed of the first layer main body 11 and the second layer main body 21. Further, the electrical component box 1 is a component that controls the refrigerant control component and is attached to the second layer main body 21 and is attached to the second layer substrate portion 220, and is a component that controls the refrigerant control component and is attached to the first layer main body 11. Includes attached first layer electrical components. Further, the electrical component box 1 includes a rotation fulcrum 30 for connecting the first layer main body 11 and the second layer main body 21, and the second layer main body 21 can be opened and closed with respect to the first layer main body 11 by the rotation fulcrum 30. Is.
  • the second layer substrate portion 220 has a first surface on the first opening surface 31 side and a second surface which is the back surface of the first surface, and the first surface is connected to the refrigerant control component.
  • a connector 221 is provided, and a second connector 222 connected to a first-layer electric component is provided on the second surface.
  • the second layer portion 20 can be opened and the first layer portion 10 and the second layer portion 20 can be seen at once, and the wiring connection between the two can be made. Further, at the stage of assembling to the outdoor unit, the connection line 54 with the refrigerant control component can be connected to the first connector 221 provided on the front surface of the second layer portion 20 without opening the second layer portion 20. , The work becomes easy. Therefore, in the electrical component box 1 having a hierarchical structure, both serviceability and assembling property can be achieved at the same time.
  • the heat pump device (outdoor unit 600) includes the above-mentioned electric component box 1, a pressure sensor 605a provided in the refrigerant circuit, an electromagnetic valve, and at least one of an electronic expansion valve. ..
  • the refrigerant control component to which the first connector 221 is connected is a pressure sensor 605a, a solenoid valve or an electronic expansion valve. Therefore, even in the heat pump device, both serviceability and assembling property can be achieved at the same time.
  • FIG. 7 is a simplified display diagram showing a mode at the time of assembling the electrical component box according to the second embodiment.
  • FIG. 8 is a simplified display diagram showing a mode when the electrical component box according to the second embodiment is incorporated into the outdoor unit.
  • the configuration of the electrical component box according to the second embodiment which is different from that of the first embodiment, will be described.
  • the second layer substrate portion mounted on the second layer portion 20 that can be opened and closed with respect to the first layer portion 10. Since the connectors are provided on both the front surface and the back surface of the 220, the same effect as in the case of the first embodiment can be obtained.
  • the second layer substrate portion 220 is composed of the individually formed control substrate 22 and the power supply substrate 24 has been described.
  • the functions of the power supply board 24 are integrated in the control board 22 of the first embodiment.
  • the second layer board portion 220 mounted on the second layer section 20 is configured by mounting a control circuit and a power supply circuit on one board.
  • the C surface 220C of the second layer substrate portion 220 is located on the first opening surface 31 side which is the front surface of the second layer main body 21, and the S surface 220S of the second layer substrate portion 220 is the back surface of the second layer main body 21. It is located on the side of the second opening surface 32.
  • the surface of the second layer substrate unit 220 on which the display unit 224, the operation unit 225, and the like are provided is referred to as a C surface 220C
  • the back surface of the C surface 220C is referred to as an S surface 220S.
  • Both the S surface 220S and the C surface 220C of the second layer substrate portion 220 are surfaces on which a connector can be provided, and the C surface 220C and the S surface 220S are the same as in the case of the control board 22 of the first embodiment. There is no difference in the parts that can be mounted.
  • the control circuit all the first connectors 221 connected to the refrigerant control component via the connecting line 54 are provided on the C surface 220C of the second layer substrate portion 220.
  • the third connector 241 connected to the electric / electronic component of the first layer portion 10, that is, the first layer electric component in the power supply circuit is provided on the S surface 220S of the second layer substrate portion 220.
  • the area in which the electrical and electronic components are arranged in the second layer portion 20 can be reduced as compared with the case where the control board 22 and the power supply board 24 are arranged side by side. Therefore, the number of substrates can be reduced as compared with the conventional case, and the cost can be reduced.
  • the second layer portion 20 by reducing the area in which the electrical and electronic components are arranged in the second layer portion 20, it is possible to provide a space in the second layer main body 21 in which the substrate or the like is not arranged. As a result, even when the second layer portion 20 is closed as shown in FIG. 8, the inside of the first layer main body 11 can be visually recognized through the space.
  • an opening in which electrical and electronic components are not arranged is provided in a region that overlaps with the power supply terminal block 12 and the noise filter substrate 13 of the first layer portion 10 in a front view. In the example shown in FIG. 8, the left side surface and the upper surface of the outer periphery of the second layer substrate portion 220 come into contact with the inner surface of the second layer main body 21.
  • the second layer substrate portion 220 is fixed to the second layer main body 21 so as to be arranged on the rotation fulcrum 30 side, that is, on the left side in the second layer main body 21.
  • the power supply terminal block 12 and the noise filter substrate 13 are arranged on the right side so as to be separated from the rotation fulcrum 30. That is, in the front view of the electrical component box body, the second layer substrate portion 220 is arranged on the rotation fulcrum 30 side, and the power supply terminal block 12 is arranged at a position farther from the rotation fulcrum 30 than the second layer substrate portion 220. Has been done. Therefore, even when the second layer portion 20 is closed, the operator can use the power terminal block 12 and the noise filter of the first layer portion 10 from the first opening surface 31 through the opening in the second layer portion 20. The substrate 13 and the like can be visually observed.
  • the second layer main body 21 is provided with a region, that is, an opening in which the parts are not attached when the first opening surface 31 is viewed from the front.
  • the operator can see the power terminal block 12 and the like of the first layer portion 10 through the first opening surface 31 on the front surface and the opening in the second layer main body 21, so that the outdoor unit 600 can be viewed.
  • the wiring connection can be easily performed without opening the second layer portion 20.
  • FIG. 9 is a simplified display diagram showing a mode at the time of assembling the electrical component box according to the third embodiment.
  • FIG. 10 is a simplified display diagram showing a mode when the electric component box according to the third embodiment is incorporated into an outdoor unit.
  • the configuration of the electrical component box according to the third embodiment which is different from that of the second embodiment, will be described.
  • the second layer substrate portion mounted on the second layer portion 20 that can be opened and closed with respect to the first layer portion 10. Since the connectors are provided on both the front surface and the back surface of the 220, the same effect as in the case of the first embodiment can be obtained.
  • the first layer main body 11 and the second layer main body 21 have a shape in which a substantially rectangular parallelepiped box-shaped electrical component box main body is divided into two in the front-rear direction (arrow Y direction). As shown in FIG. 8, the sizes of the first layer main body 11 and the second layer main body 21 were substantially the same in the front view.
  • the size of the second layer main body 21 in the second embodiment is larger than that of the first layer main body 11 according to the substrate size of the second layer substrate portion 220. It is configured small.
  • the distance between the sheet metals forming the left side surface and the right side surface of the second layer main body 21 matches the width of the second layer substrate portion 220 in the lateral direction (arrow X direction).
  • the lid portion 40 is made of a sheet metal having a square shape, and is attached to the front surface of the second layer main body 21 so as to cover the first opening surface 31 of the second layer main body 21.
  • the lid portion 40 is a front view of the electrical component box 1 in a state where the second layer main body 21 is closed, and the front surface of the portion of the first layer main body 11 that protrudes to the outside of the second layer main body 21 is viewed. It has a first lid portion 41 for covering, a second lid portion 42 for covering the front surface of the second layer main body 21, and a lid connecting portion 43.
  • the lid connecting portion 43 connects the first lid portion 41 and the second lid portion 42.
  • the lid portion 40 has a substantially S-shape in a plan view, and may be formed by bending one sheet metal in two places, for example, as shown in FIG.
  • the operator by removing the lid portion 40 from the main body of the electric component box, the operator protrudes inside the second layer main body 21 and outside the second layer main body 21 in the first layer main body 11.
  • the electrical and electronic parts of the part can be seen from the front. Therefore, the operator can easily check the state of the electrical and electronic components inside the first layer main body 11 without opening the second layer main body 21 by the rotation fulcrum 30.
  • FIG. 10 with the lid portion 40 removed, when the electrical component box 1 is viewed from the front, the C surface 220C of the second layer substrate portion 220 arranged in the second layer main body 21 and the first
  • the power supply terminal block 12 and the noise filter substrate 13 arranged on the right side in the layer body 11 can be visually recognized.
  • the second layer main body 21 is formed smaller than the first layer main body 11 according to the size of the second layer substrate portion 200.
  • the operator can see the electrical and electronic parts such as the power supply terminal block 12 arranged outside the second layer main body 21 in the first layer main body 11, and thus the embodiment is also carried out in the third embodiment.
  • the same effect as in the case of Form 2 can be obtained.
  • the lid portion 40 may be configured by bending one sheet metal as described above, or may be configured by two sheet metals of the first lid portion 41 and the second lid portion 42 without providing the lid connecting portion 43. You may.
  • the lid portion 40 is composed of two sheets of metal, the first lid portion 41 and the second lid portion 42, the number of sheets increases, but the operator can use the two sheets that form the lid portion 40 when the electrical component box 1 is installed. All you have to do is remove the sheet metal, and you can work without opening the second layer 20.
  • a configuration example in which the lid portion 40 does not include the lid connecting portion 43 and the first lid portion 41 and the second lid portion 42 are individually configured will be described.
  • FIG. 11 is a simplified display diagram showing a form at the time of assembly in the first modification of the electrical component box according to the third embodiment.
  • FIG. 12 is a simplified display diagram showing a mode when the electrical component box according to the third embodiment is incorporated into the outdoor unit in the first modification.
  • the first lid portion 41 is composed of a part of the sheet metal constituting the second layer main body 21. Specifically, the first lid portion 41 is on the right side from the back end side of the sheet metal constituting the right side surface of the second layer main body 21 in a state where the second layer portion 20 is closed as shown in FIG. It is composed of sheet metal extending to.
  • FIG. 13 is a simplified display diagram showing a form at the time of assembly in the second modification of the electrical component box according to the third embodiment.
  • FIG. 14 is a simplified display diagram showing a mode when the electric component box according to the third embodiment is incorporated into the outdoor unit in the second modification.
  • the lid portion 40 of the second modification is provided with a fixing portion 45 for fixing the first lid portion 41 and the first layer main body 11 to the lid portion 40 of the first modification.
  • the fixing portion 45 is provided at a portion where the first layer main body 11 and the first lid portion 41 extending from the second layer main body 21 come into contact with each other in a state where the second layer portion 20 is closed by the rotation fulcrum 30. ..
  • the fixing portion 45 includes a first fixing portion 46 provided on the edge of the third opening surface 33 of a portion of the first layer main body 11 that protrudes to the outside of the second layer main body 21, and a first lid. It has a second fixing portion 47 provided at a position facing the first fixing portion 46 on the outer peripheral portion of the portion 41.
  • the first fixing portion 46 is provided on the right edge portion of the third opening surface 33 in the second layer main body 21, and the second fixing portion 47 is the right edge portion on the outer peripheral portion of the first lid portion 41. It is provided in the part.
  • the first fixing portion 46 and the second fixing portion 47 each have screw holes, and the degree of adhesion between the first layer main body 11 and the second layer main body 21 is increased by screw tightening.
  • the screw hole of the second fixing portion 47 is formed to be larger than the outer diameter of the screw to be passed through the screw hole so that the fixing and the release can be easily performed.
  • the second layer main body 21 has a first lid portion 41 that closes a part of the front surface of the first layer main body 11, and the first lid portion 41 is , A part of the sheet metal of the second layer main body 21 is extended.
  • the electric component box main body includes a fixing portion 45.
  • the fixing portion 45 is provided in the first layer main body 11 and has a screw hole formed in the first fixing portion 46, and is provided in the second layer main body 21 and has a screw hole larger than the screw hole of the first fixing portion 46.
  • FIG. 15 is a simplified display diagram showing a mode at the time of assembling the electrical component box according to the fourth embodiment.
  • FIG. 16 is a simplified display diagram showing a mode when the electrical component box according to the fourth embodiment is incorporated into an outdoor unit.
  • FIG. 17 is a side view showing a state in which the lid 40 of the electrical component box of FIG. 16 is closed.
  • the configuration of the electrical component box 1 in the fourth embodiment different from that of the second embodiment will be described.
  • the second layer substrate portion mounted on the second layer portion 20 that can be opened and closed with respect to the first layer portion 10. Since the connectors are provided on both the front surface and the back surface of the 220, the same effect as in the case of the first embodiment can be obtained.
  • the first layer main body 11 and the second layer main body 21 have a shape in which a substantially rectangular parallelepiped box-shaped electrical component box main body is divided into two in the front-rear direction (arrow Y direction).
  • the sheet metal forming the upper surface of the first layer main body 11 and the sheet metal forming the upper surface of the second layer main body 21 were respectively provided horizontally.
  • the electric component box is installed on the upper part of the first layer portion 10 in a state where the second layer portion 20 is closed by the rotation fulcrum 30, and extends forward so as to cover the upper surface of the second layer main body 21. It has a roof portion 101.
  • the upper surface of the second layer main body 21 is installed on the sheet metal forming the upper surface of the second layer main body 21 and the first layer main body 11 when the second layer main body 21 is closed by the rotation fulcrum 30.
  • the structure is lowered toward the front.
  • the upper surface of the first layer main body 11 and the roof portion 101 installed on the upper surface of the first layer main body 11 are configured to be gradually lowered toward the rear.
  • the roof portion 101 is the sheet metal forming the upper surface of the first layer main body 11. May be configured by extending forward.
  • the first layer portion 10 includes a roof portion 101 that covers both the upper surface of the first layer main body 11 and the upper surface of the second layer main body 21.
  • FIG. 18 is a simplified display diagram showing a mode at the time of assembling the electrical component box according to the fifth embodiment.
  • FIG. 19 is an exploded perspective view showing the configuration of the second layer main body of the electrical component box of FIG.
  • FIG. 20 is a simplified display diagram showing a mode when the electrical component box according to the fifth embodiment is incorporated into an outdoor unit.
  • the configuration of the electrical component box in the fifth embodiment which is different from that of the second embodiment, will be described.
  • the second layer substrate portion mounted on the second layer portion 20 that can be opened and closed with respect to the first layer portion 10. Since the connectors are provided on both the front surface and the back surface of the 220, the same effect as in the case of the first embodiment can be obtained.
  • the first layer main body 11 and the second layer main body 21 have a shape in which a substantially rectangular parallelepiped box-shaped electrical component box main body is divided into two in the front-rear direction (arrow Y direction).
  • the second layer main body 21 had a frame shape in which sheet metal was arranged on four side surfaces on the upper, lower, left, and right sides, and the front and back surfaces were open.
  • the second layer main body 21 constitutes the front portion of the side surface of the box-shaped electric product box main body where the rotation fulcrum 30 is provided, and the first layer main body 11 is the electric product. It constitutes the rest of the box body.
  • a rotation fulcrum 30 is provided on the left side surface of the electric component box main body
  • the second layer main body 21 constitutes a front portion of the left side surface of the electric component box main body. ..
  • the second layer substrate portion 220 is attached to the second layer main body 21 by the substrate, but in the fifth embodiment, the second layer main body 21 is provided with the attachment portion 210, and the second layer main body portion 21 is provided.
  • the two-layer board portion 220 is attached to the second layer main body 21 via the attachment portion 210.
  • the mounting portion 210 is fixed to the second layer main body 21 so that the left side surface of the mounting portion 210 contacts the inner surface of the second layer main body 21.
  • the mounting portion 210 has a frame shape in which a window portion 215 opened in the center of the plate-shaped member is formed. With the second layer substrate portion 220 attached to the mounting portion 210, the second layer substrate portion 220 comes into contact with the edge portion of the window portion 215 or the inner peripheral surface of the window portion 215 on one surface of the mounting portion 210. There is.
  • the operator opens and closes the second layer portion 20 by the rotation fulcrum 30 and is attached to the mounting portion 210. Both sides of the layer substrate portion 220 can be seen.
  • the first wiring hole 102a through which the wiring connected to the first layer portion 10 is passed is formed at a position on the inner side of the sheet metal forming the lower surface of the first layer main body 11.
  • a second wiring hole 102b through which the wiring connected to the second layer portion 20 is passed is formed at a position on the front side of the sheet metal forming the lower surface of the first layer main body 11.
  • the second wiring hole 102b in the first layer main body 11 is provided closer to the rotation fulcrum 30 than the first wiring hole 102a. Further, in order to reduce the contact between the wiring and the electrical and electronic components caused by opening and closing the second layer main body 21, rubber bushes 56 are provided in the first wiring hole 102a and the second wiring hole 102b.
  • the opening surface of the electric component box main body can be reduced, and the upper surface of the second layer portion 20 is the upper surface of the first layer main body 11 in a state where the second layer portion 20 is closed. Since it is covered, it is possible to suppress the intrusion of rainwater and the like as in the case of the fourth embodiment.
  • the mounting portion 210 is provided at a position close to the rotation fulcrum 30, and the second layer substrate portion 220 is mounted on the mounting portion 210. It is not necessary to provide 201. However, in order to prevent the end portion of the second layer substrate portion 220 opposite to the rotation fulcrum 30 from becoming unstable due to the transportation vibration of a truck or the like, the auxiliary support column 201 is provided in the first layer main body 11. , The end portion of the second layer substrate portion 220 may be fixed by the auxiliary support column 201.
  • FIG. 21 is a simplified display diagram showing a mode at the time of assembly in the electrical component box according to the sixth embodiment.
  • FIG. 22 is an exploded perspective view showing the configuration of the second layer main body of the electrical component box of FIG. 21.
  • FIG. 23 is a simplified display diagram showing a mode when the electrical component box according to the sixth embodiment is incorporated into an outdoor unit. With reference to FIGS. 21 to 23, a configuration different from that of the second embodiment will be described for the electrical component box 1 of the sixth embodiment.
  • the configuration of the second layer substrate portion 220, the shapes of the first layer main body 11 and the second layer main body 21 constituting the electric component box main body, and the point that the electric component box includes the mounting portion 210. Different from the case of the second embodiment.
  • the second layer board portion 220 mounted on the second layer section 20 has a configuration in which a control circuit and a power supply circuit are mounted on one board.
  • the second layer board portion 220 is composed of a control board 22 on which a control circuit is mounted and a power supply board 24 on which a power supply circuit is mounted, and each of the control board 22 and the power supply board 24 is electronic. It has mounting surfaces 22a and 24a for components and non-mounting surfaces 22b and 24b.
  • the display unit 224, the operation unit 225, and the first connector 221 to which the connection line 54 from the refrigerant control component is connected are provided on the mounting surface 22a of the control board 22.
  • the mounting surface 24a of the power supply board 24 is provided with an electrical / electronic component of the first layer portion 10, that is, a third connector 241 connected to the first layer electrical component.
  • the second layer main body 21 constitutes the front portion of the side surface of the box-shaped electric component box main body on which the rotation fulcrum 30 is provided, and the first layer main body 11 is the electric component. It constitutes the rest of the box body.
  • the rotation fulcrum 30 is provided on the left side surface of the electric component box main body, and the second layer main body 21 constitutes the front portion of the left side surface of the electric component box main body. ..
  • the second layer main body 21 is provided with a mounting portion 210, and the second layer substrate portion 220 is attached to the second layer main body 21 via the mounting portion 210.
  • the mounting portion 210 is fixed to the second layer main body 21 so that the left side surface of the mounting portion 210 contacts the inner surface of the second layer main body 21.
  • the mounting portion 210 is composed of a plate-shaped member provided with a notch portion 211 in a part of the outer circumference, and the second layer portion 20 is closed as shown in FIG. 23. In the state, it has a first surface 210a which is a front surface and a second surface 210b which is a back surface.
  • the control board 22 is attached to the first surface 210a of the mounting portion 210 so that the non-mounting surface 22b of the control board 22 is in contact with the first surface 210a, and the non-mounting surface 24b of the power supply board 24 is attached to the second surface 210b of the mounting portion 210.
  • the power supply board 24 is attached so as to be in contact with each other. That is, the second layer board portion 220 of the sixth embodiment is configured such that the control board 22 and the power supply board 24 are arranged back to back via the mounting portion 210.
  • the wiring connecting the control board 22 and the power supply board 24 is passed through the notch 211.
  • the operator can open and close the second layer portion 20 to open and close the mounting surface 22a of the control board 22 and the mounting surface 24a of the power supply board 24. And can be seen.
  • the first wiring hole 102a through which the wiring connected to the first layer portion 10 is passed is formed at a position on the inner side of the sheet metal forming the lower surface of the first layer main body 11.
  • a second wiring hole 102b through which the wiring connected to the second layer portion 20 is passed is formed at a position on the front side of the sheet metal forming the lower surface of the first layer main body 11.
  • the second wiring hole 102b in the first layer main body 11 is provided closer to the rotation fulcrum 30 than the first wiring hole 102a. Further, in order to reduce the contact between the wiring and the electric / electronic component caused by the opening / closing of the second layer portion 20, it is preferable that the second wiring hole 102b is provided with the rubber bush 56.
  • control board 22 and the power supply board 24 are mounted on the mounting portion 210 so as to be back to back, but the first connector and the second connector are provided on the front and back surfaces. Corresponds to the two-layer substrate portion 220. Therefore, even in the sixth embodiment, the same effect as in the case of the first embodiment can be obtained.
  • control board 22 and the power supply board 24 constituting the second layer board portion 220 each have non-mounting surfaces 22b and 24b, the control board 22 and the power supply board 24 mounted in the flow process can be mounted. It can be used and the substrate can be easily machined.
  • a non-contact power feeding mechanism 400 may be used instead of the power supply board 24.
  • the non-contact power supply mechanism 400 has a power transmission unit 400a and a power reception unit 400b, and power is supplied from the power transmission unit 400a to the power reception unit 400b in a non-contact manner.
  • the non-contact power feeding mechanism 400 can be configured to feed power from the power transmitting unit 400a made of a coil to the power receiving unit 400b made of an electromagnetic induction coil in a non-contact manner, for example. Further, the non-contact power feeding mechanism 400 has a function of carrying communication data and supplying power.
  • a magnetic field resonance method or an electric field coupling method may be adopted for the power supply from the power transmission unit 400a to the power reception unit 400b.
  • the configuration may be such that wireless communication is possible in the main body of the electrical component box, for example, separately from the non-contact power feeding mechanism 400.
  • a communication means for performing wireless communication may be provided, and communication data may be transmitted / received by the communication means.
  • FIG. 24 is an electric circuit diagram of the first modification of the electric component box according to the sixth embodiment.
  • the power receiving portion 400b of the non-contact power feeding mechanism 400 is mounted on the first layer portion 10
  • the power transmitting portion 400a of the non-contact power feeding mechanism 400 is mounted on the second layer portion 20.
  • the power receiving unit 400b is provided on the first inverter board 14, and the power transmitting unit 400a is provided on the second surface 210b of the mounting unit 210.
  • the place where the power receiving unit 400b and the power transmitting unit 400a are provided may be anywhere, and the power receiving unit 400b and the power transmitting unit 400a may be arranged so as to face each other in a state where the second layer unit 20 is closed.
  • the control power is supplied to the electric / electronic component of the first layer portion by the non-contact power feeding mechanism 400, the electric / electronic component of the first layer portion 10 is supplied with the control power. There is no need to provide a weak wire to supply control power or transmit electrical signals. Further, since the non-contact power feeding mechanism 400 has a function of carrying communication data and supplying power, it is necessary to provide a communication line 53 for transmitting a control signal from the control board 22 on the electrical and electronic components of the first layer portion 10. Nor. Therefore, when the non-contact power feeding mechanism 400 is provided instead of the power supply board 24, the wiring straddling the first layer portion 10 and the second layer portion 20 can be reduced, and the configuration can be simplified.
  • FIG. 25 is an electric circuit diagram of a second modification of the electric component box according to the sixth embodiment.
  • the power transmission unit 400a of the non-contact power supply mechanism 400 is mounted on the first layer portion 10 provided with the power terminal block 12, and the power reception unit 400b of the non-contact power supply mechanism 400 is mounted on the second layer portion 20. It is installed.
  • the first inverter board 14 connected to the compressor motor 601a, the second inverter board 15 connected to the first fan motor 602a, and the third inverter board 16 connected to the second fan motor 603a. Are all provided in the first layer portion 10. Therefore, in the second modification, it is not necessary to connect a strong electric wire from the noise filter substrate 13 provided in the first layer portion 10 to the second layer portion 20, and the wiring straddling the first layer portion 10 and the second layer portion 20. Can be reduced.
  • FIG. 26 is an electric circuit diagram of a third modification of the electrical component box according to the sixth embodiment.
  • the down transformer 70 is provided in the wiring that connects the noise filter board 13 and the control board 22 and supplies electric power for the control power supply.
  • the control power supply can be set to a specified value or less by the configuration of the second modification or the third modification described above.
  • FIG. 27 is a simplified display diagram showing a mode at the time of assembling the electrical component box according to the seventh embodiment.
  • FIG. 28 is a simplified display diagram showing a mode when the electrical component box according to the seventh embodiment is incorporated into an outdoor unit.
  • the configuration of the first layer main body 11 and the arrangement of the electrical and electronic components in the main body of the electric component box are different from those of the first embodiment.
  • the configuration of the electrical component box 1 in the seventh embodiment different from that of the first embodiment will be described.
  • the electrical component box 1 of the seventh embodiment is composed of a first layer portion 10, a second layer portion 20, a rotation fulcrum 30, and the like.
  • the electrical component box 1 of the seventh embodiment does not include the lid portion 40 of the first embodiment, and the electrical component box main body has a substantially rectangular parallelepiped box shape.
  • the electrical component box main body is composed of a first layer main body 11 and a second layer main body 21 that are substantially symmetrical in the front-rear direction in the depth direction (arrow Y direction). That is, the first layer main body 11 is composed of sheet metal arranged on the upper, lower, left and right four side surfaces and the back surface, and the second layer main body 21 is composed of sheet metal arranged on the upper, lower, left and right four side surfaces and the front surface. There is.
  • the open back surface of the second layer main body 21 is referred to as a second opening surface 32
  • the open front surface of the first layer main body 11 is referred to as a third opening surface 33.
  • the first layer portion 10 is located behind the outdoor unit 600 in a state where the first layer portion 10 and the second layer portion 20 of the electrical component box 1 are closed. , The electric component box 1 is incorporated into the outdoor unit 600 via the service aspect. The first layer portion 10 is fixed to the housing 600a of the outdoor unit 600.
  • the electrical component box 1 of the seventh embodiment controls the power supply terminal board 12, the noise filter board 13, the first inverter board 14, the second inverter board 15, the third inverter board 16, and the DC reactor 17. It has a control board 22 or the like on which a circuit is mounted.
  • the electrical component box 1 of the seventh embodiment does not include the power supply board 24 of the first embodiment.
  • the control board 22 has a mounting surface 22a and a non-mounting surface 22b on the back surface of the mounting surface 22a, and the communication unit 23, the display unit 224, and the operation are performed on the mounting surface 22a.
  • a portion 225, a first connector 221 and a second connector 222 are provided.
  • the electrical / electronic component of the second layer portion 20 may be referred to as a second layer electrical component.
  • each electrical and electronic component is attached to the inner surface of the sheet metal constituting the front surface of the second layer main body 21.
  • a power supply terminal block 12, a noise filter board 13, and a control board 22 are provided on the first layer main body 11 to form the first layer portion 10.
  • each electric / electronic component is attached to the inner surface of the sheet metal forming the back surface of the first layer main body 11.
  • the mounting surface 22a of the control board 22 is arranged so as to face the third opening surface 33.
  • the cooling member 300 is attached to the front surface of the sheet metal constituting the front surface of the second layer portion 20, and cools each electric / electronic component attached to the second layer portion 20. Further, in the seventh embodiment, since all the substrates are attached to the sheet metal of the first layer main body 11 or the second layer main body 21, it is not necessary to provide the auxiliary support column 201 of the first embodiment for fixing. ..
  • Each of the first layer main body 11 and the second layer main body 21 is provided with a plurality of wiring holes 102 for passing wiring. Further, a rubber bush 56 is provided in each wiring hole 102 to suppress the movement of wiring, water intrusion, and contact with sheet metal.
  • the wiring holes 102 are formed on the lower surfaces of the first layer main body 11 and the second layer main body 21 and on the side surfaces where the rotation fulcrums 30 are provided.
  • the power supply terminal block 12 and the noise filter board 13 are arranged at positions on the left side closer to the rotation fulcrum 30 than the control board 22.
  • the first inverter board 14 is arranged at a certain distance from the rotation fulcrum 30, and the second layer portion is in the space between the first inverter board 14 and the rotation fulcrum 30.
  • Wiring such as an electric wire 51 connecting each substrate of 20 and the first layer portion 10 is arranged.
  • the wiring straddling the first layer main body 11 and the second layer main body 21 is connected so as to go out once through a wiring hole 102 formed in a sheet metal close to the rotation fulcrum 30 among the plurality of wiring holes 102. .. Therefore, with respect to the rotational operation of the second layer portion 20, the movement of the wiring is small, and deterioration due to contact with the sheet metal close to the rotation fulcrum 30 can be avoided.
  • the electric component box 1 is in a state where the first layer main body 11 and the second layer main body 21 are opened to the left and right by the rotation fulcrum 30. Is placed on the production line. Therefore, at the time of manufacturing the electrical component box 1, the work of attaching the electrical and electronic components to the first layer main body 11 and the second layer main body 21, or the work of attaching the wiring straddling the first layer main body 11 and the second layer main body 21 is performed. You can easily do this while checking the connection destination of the wiring.
  • the operator opens the second layer portion 20 and puts it on the front surface of the control board 22.
  • the connection line 54 from the refrigerant control component is connected to the first connector 221 provided.
  • the first connector 221 of the control board 22 is provided on the first layer main body 11 fixed to the housing 600a, the second connector 54 connected to the refrigerant control component is not moved.
  • the layer portion 20 can be opened and closed.
  • the electric component box 1 includes a first layer main body 11 and a second layer main body 21 in which the electric component box main body is divided into two. Further, the electrical component box 1 includes an electronic board (control board 22) attached to the first layer main body 11, a second layer electric component attached to the second layer main body 21, and the first layer main body 11 and the second layer. It is provided with a rotation fulcrum 30 for connecting to the main body 21.
  • the first layer main body 11 is fixed to the housing 600a of the outdoor unit 600, and the second layer main body 21 can be opened and closed with respect to the first layer main body 11 by the rotation fulcrum 30.
  • a first connector 221 connected to the refrigerant control component is provided on the surface of the electronic board (control board 22) facing the second layer electric component.
  • the second layer portion 20 can be opened and the first layer portion 10 and the second layer portion 20 can be seen at once, and the wiring connection between the two can be made. Further, at the stage of assembling to the outdoor unit 600, the second layer portion 20 is opened, and the connection line 54 with the refrigerant control component is connected to the first connector 221 provided on the first layer portion 10 which is the front surface in the opened state. Can be connected.
  • the control board 22 is provided on the fixed first layer portion 10
  • the second layer main body 21 can be opened and closed without moving the connecting line 54 with the refrigerant control component. Therefore, also in the seventh embodiment, as in the case of the first embodiment, it is possible to achieve both serviceability and assembling property in the electric component box having a hierarchical structure.
  • the outdoor unit of the heat pump device to which the above-mentioned electric component box 1 is applied is not limited to the outdoor unit 600 of FIG.
  • the outdoor unit 600 may be provided with one or more fans.
  • the outdoor unit 600 may be a side-flow type outdoor unit in which a fan is attached to the side surface of the housing 600a.
  • the refrigerant circuit is not limited to the above-described configuration, and for example, the outdoor unit 600 may be provided with a flow path switching device such as a four-way valve so that the heating operation and the cooling operation can be switched.
  • the shape of the electric product box main body and the shapes of the first layer main body 11 and the second layer main body 21 can be appropriately changed depending on the configuration of the outdoor unit.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
PCT/JP2020/011182 2020-03-13 2020-03-13 電気品箱及びヒートポンプ装置 Ceased WO2021181677A1 (ja)

Priority Applications (2)

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PCT/JP2020/011182 WO2021181677A1 (ja) 2020-03-13 2020-03-13 電気品箱及びヒートポンプ装置
JP2022505704A JP7337250B2 (ja) 2020-03-13 2020-03-13 電気品箱及びヒートポンプ装置

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JP2023121260A (ja) * 2022-02-21 2023-08-31 パナソニックＩｐマネジメント株式会社 室外機
JP2024001611A (ja) * 2022-06-22 2024-01-10 株式会社富士通ゼネラル 室外機及び空気調和機
JP2024005994A (ja) * 2022-06-30 2024-01-17 株式会社富士通ゼネラル 室外機及びこれを備えた空気調和機

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JP2005098625A (ja) * 2003-09-25 2005-04-14 Toshiba Kyaria Kk 空気調和装置の室外ユニット
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JP2024001611A (ja) * 2022-06-22 2024-01-10 株式会社富士通ゼネラル 室外機及び空気調和機
JP2024005994A (ja) * 2022-06-30 2024-01-17 株式会社富士通ゼネラル 室外機及びこれを備えた空気調和機

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