WO2020110166A1 - Unité extérieure - Google Patents

Unité extérieure Download PDF

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Publication number
WO2020110166A1
WO2020110166A1 PCT/JP2018/043352 JP2018043352W WO2020110166A1 WO 2020110166 A1 WO2020110166 A1 WO 2020110166A1 JP 2018043352 W JP2018043352 W JP 2018043352W WO 2020110166 A1 WO2020110166 A1 WO 2020110166A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat sink
lead wire
capacitor
outdoor unit
control board
Prior art date
Application number
PCT/JP2018/043352
Other languages
English (en)
Japanese (ja)
Inventor
賢太郎 米原
達也 浅沼
隼人 栗野
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to JP2020557410A priority Critical patent/JP6972381B2/ja
Priority to PCT/JP2018/043352 priority patent/WO2020110166A1/fr
Publication of WO2020110166A1 publication Critical patent/WO2020110166A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/20—Electric components for separate outdoor units
    • 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
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20—Casings or covers

Definitions

  • the present invention relates to an outdoor unit including a control board.
  • an outdoor unit equipped with a control board is known as an outdoor unit for an air conditioner.
  • a heating element and a capacitor are mounted on the control board, and lead wires are routed in the vicinity.
  • the heat generating element and the capacitor are usually arranged in the vicinity of each other in order to suppress the occurrence of noise and malfunction.
  • a heat sink that dissipates the heat generated from the heating element is attached to the heating element. That is, the heat sink and the capacitor are arranged in the vicinity.
  • the lead wire is also routed to a position away from the heat generating element, noise may be generated to that extent and affect the operation of the control board. Therefore, the heat sink, the capacitor, and the lead wire are usually arranged in the vicinity.
  • Patent Document 1 discloses an outdoor unit of a heat pump device provided with an electric equipment box including a control board in which a heating element and a capacitor are mounted adjacent to each other, and a heat sink that dissipates heat generated from the heating element. There is. A connector is attached to the control board of Patent Document 1, and a lead wire routed from a blower chamber or a machine chamber is inserted into the connector.
  • the lead wire is generally disposed in the vicinity of the heat sink and the capacitor, when the worker pulls the lead wire when assembling the outdoor unit of the heat pump device disclosed in Patent Document 1, the lead wire comes into contact with the capacitor. May occur. As a result, the capacitor may fall down, and the solder portion that electrically connects the terminal portion provided on the capacitor and the control board may be broken and the wire may be broken.
  • the present invention has been made to solve the above problems, and provides an outdoor unit that suppresses contact of a lead wire with a capacitor.
  • the outdoor unit includes a control board in which a heating element and a capacitor are mounted adjacent to each other, a lead wire arranged between the heating element and the capacitor and connected to the control board, and a heating element attached to the heating element
  • a heat sink that dissipates heat generated from the element and a heat sink holder that supports the heat sink are provided.
  • the heat sink holder includes a frame portion that surrounds the outer periphery of the heat sink, and between the heat sink and the capacitor, from the frame portion to the control board side. It has an extending portion that extends in the opposite direction and a holding portion that projects from the extending portion and holds the lead wire.
  • the heat sink holder for holding the heat sink has the extending portion and the holding portion, and the holding portion holds the lead wire. Therefore, even if the worker pulls the lead wire, the lead wire does not move. Therefore, it is possible to prevent the lead wire from coming into contact with the capacitor.
  • FIG. 3 is an exploded perspective view showing the outdoor unit 2 according to Embodiment 1 of the present invention with a front panel 21, a side panel 22 and a top panel 23 removed. It is the front view which removed the front panel 21, the side panel 22, and the top panel 23 in the outdoor unit 2 which concerns on Embodiment 1 of this invention.
  • FIG. 3 is an exploded perspective view showing the electrical component box 34 according to Embodiment 1 of the present invention. It is a perspective view which shows the control board 41 which concerns on Embodiment 1 of this invention.
  • FIG. 3 is a perspective view showing a capacitor 50b according to the first embodiment of the present invention. It is a front view which shows the electrical component box 34 which concerns on Embodiment 1 of this invention. It is a perspective view which shows the heat sink support 60 and the heat sink holder 70 which concern on Embodiment 1 of this invention.
  • FIG. 10 is a perspective view of the heat sink support 60 and the heat sink holder 70 according to the first embodiment of the present invention viewed from an angle different from FIG. 9. It is a perspective view which shows the heat sink support 60 which concerns on Embodiment 1 of this invention. It is a perspective view which shows the heat sink holder 70 which concerns on Embodiment 1 of this invention.
  • FIG. 10 is a perspective view of the heat sink support 60 and the heat sink holder 70 according to the first embodiment of the present invention viewed from an angle different from FIG. 9. It is a perspective view which shows the heat sink support 60 which concerns on Embodiment 1 of this invention. It is a perspective view which shows the heat sink holder
  • FIG. 13 is a perspective view of the heat sink holder 70 according to the first embodiment of the present invention viewed from an angle different from that in FIG. 12. It is a top view which shows the heat sink holder 70 which concerns on Embodiment 1 of this invention. It is a perspective view which shows the holding part 74 which concerns on Embodiment 1 of this invention. It is a top view which shows the holding part 74 which concerns on Embodiment 1 of this invention. It is an assembly perspective view which shows the electrical component box 34 which concerns on Embodiment 1 of this invention. It is sectional drawing which shows the electrical component box 34 which concerns on Embodiment 1 of this invention.
  • FIG. 1 is a circuit diagram showing an air conditioner 1 according to Embodiment 1 of the present invention.
  • the air conditioner 1 is a device that adjusts the air in the indoor space, and includes an outdoor unit 2 and an indoor unit 3.
  • the outdoor unit 2 is provided with, for example, a compressor 6, a flow path switching device 7, an outdoor heat exchanger 8, an outdoor blower 9, and an expansion section 10.
  • the indoor unit 3 is provided with, for example, an indoor heat exchanger 11 and an indoor blower 12.
  • the compressor 6, the flow path switching device 7, the outdoor heat exchanger 8, the expansion unit 10 and the indoor heat exchanger 11 are connected by the refrigerant pipe 5 to form the refrigerant circuit 4.
  • the compressor 6 sucks the low-temperature low-pressure refrigerant, compresses the sucked refrigerant, and discharges the high-temperature high-pressure refrigerant.
  • the flow path switching device 7 switches the direction in which the refrigerant flows in the refrigerant circuit 4, and is, for example, a four-way valve.
  • the outdoor heat exchanger 8 exchanges heat between outdoor air and a refrigerant, for example.
  • the outdoor heat exchanger 8 functions as a condenser during cooling operation and as an evaporator during heating operation.
  • the outdoor blower 9 is a device that sends outdoor air to the outdoor heat exchanger 8.
  • the expansion unit 10 is a pressure reducing valve or an expansion valve that decompresses and expands the refrigerant.
  • the expansion section 10 is, for example, an electronic expansion valve whose opening is adjusted.
  • the indoor heat exchanger 11 exchanges heat between indoor air and a refrigerant, for example.
  • the indoor heat exchanger 11 acts as an evaporator during cooling operation and as a condenser during heating operation.
  • the indoor blower 12 is a device that sends indoor air to the indoor heat exchanger 11.
  • cooling operation Next, the operation mode of the air conditioner 1 will be described.
  • the cooling operation In the cooling operation, the refrigerant sucked into the compressor 6 is compressed by the compressor 6 and discharged in a high temperature and high pressure gas state.
  • the high-temperature, high-pressure gas-state refrigerant discharged from the compressor 6 passes through the flow path switching device 7 and flows into the outdoor heat exchanger 8 acting as a condenser, and in the outdoor heat exchanger 8, the outdoor blower.
  • the heat is exchanged with the outdoor air sent by 9 to condense and liquefy.
  • the condensed liquid-state refrigerant flows into the expansion section 10 and is expanded and decompressed in the expansion section 10 to become a low-temperature low-pressure gas-liquid two-phase refrigerant. Then, the refrigerant in the gas-liquid two-phase state flows into the indoor heat exchanger 11 that functions as an evaporator, and is heat-exchanged with the indoor air sent by the indoor blower 12 in the indoor heat exchanger 11 to evaporate and gasify. To do. At this time, the room air is cooled and the room is cooled. The evaporated low-temperature low-pressure refrigerant in a gas state passes through the flow path switching device 7 and is sucked into the compressor 6.
  • the heating operation In the heating operation, the refrigerant sucked into the compressor 6 is compressed by the compressor 6 and discharged in a high temperature and high pressure gas state.
  • the high-temperature, high-pressure gas-state refrigerant discharged from the compressor 6 passes through the flow path switching device 7 and flows into the indoor heat exchanger 11 that functions as a condenser, and in the indoor heat exchanger 11, the indoor blower.
  • the heat is exchanged with the room air sent by 12 to condense and liquefy. At this time, the indoor air is warmed and the room is heated.
  • the condensed refrigerant in the liquid state flows into the expansion section 10 and is expanded and decompressed in the expansion section 10 to become a low temperature and low pressure gas-liquid two-phase refrigerant. Then, the refrigerant in the gas-liquid two-phase state flows into the outdoor heat exchanger 8 acting as an evaporator, and in the outdoor heat exchanger 8, the refrigerant exchanges heat with the outdoor air sent by the outdoor blower 9 to evaporate and gasify. To do.
  • the evaporated low-temperature low-pressure gas-state refrigerant passes through the flow path switching device 7 and is sucked into the compressor 6.
  • FIG. 2 is an assembled perspective view showing the outdoor unit 2 according to the first embodiment of the present invention.
  • the outdoor unit 2 has a housing 20 and an internal component member 30.
  • the housing 20 has a front panel 21, a side panel 22, a top panel 23, and a fan guard 24.
  • the front panel 21 is a metal plate that covers the front surface of the internal component 30.
  • the side panel 22 is a metal plate that covers one side surface of the internal component member 30.
  • the top panel 23 is a metal plate that covers the upper surface of the internal component member 30.
  • the fan guard 24 is provided so as to close an opening formed in the front panel 21 through which air passes, and suppresses foreign matter from entering the inside of the outdoor unit 2.
  • FIG. 3 is an exploded perspective view showing the outdoor unit 2 according to Embodiment 1 of the present invention with the front panel 21, side panel 22 and top panel 23 removed.
  • FIG. 4 is a front view of the outdoor unit 2 according to Embodiment 1 of the present invention with the front panel 21, the side panel 22 and the top panel 23 removed.
  • the internal constituent member 30 will be described.
  • the internal component member 30 includes a base 31, a compressor 6, an outdoor heat exchanger 8, a motor support component 32, an outdoor blower 9, a partition plate 33, and an electrical component. And a box 34.
  • the base 31 is a member that forms the bottom surface of the outdoor unit 2.
  • the front panel 21, the side panel 22, the top panel 23, and the base 31 constitute an outer shell of the outdoor unit 2.
  • the compressor 6 is provided on the base 31.
  • the outdoor heat exchanger 8 has, for example, an L-shaped cross section, and is provided on the base 31 to form the other side surface and the back surface of the outdoor unit 2.
  • the motor support component 32 is provided in front of the outdoor heat exchanger 8 in a portion forming the back surface of the outdoor unit 2, and supports a motor (not shown) that rotationally drives the outdoor blower 9.
  • the outdoor blower 9 is attached to the motor support component 32, and forms an air passage that sucks air from the rear surface of the outdoor unit 2 and sends the air to the outdoor heat exchanger 8.
  • the partition plate 33 is a metal plate extending upward from the base 31 and partitions the inside of the outdoor unit 2 into a blower chamber 25 and a machine chamber 26.
  • the blower chamber 25 is provided with the outdoor heat exchanger 8 and the outdoor blower 9, and the machine chamber 26 is provided with the compressor 6 and the refrigerant pipe 5 connected to the compressor 6.
  • the electrical component box 34 stores electrical components, and is provided at the upper end of the partition plate 33. In the outdoor unit 2 having the inverter drive circuit, the electrical component box 34 is provided to house the control board 41.
  • FIG. 5 is an exploded perspective view showing the electrical component box 34 according to Embodiment 1 of the present invention. Next, the electrical component box 34 will be described. As shown in FIG. 5, the electrical component box 34 includes a control board 41, lead wires 42 (see FIG. 6 ), a board holder 43, a cover 44, a terminal block support 45, an air guide 46, and a heat sink 47. It has a heat sink support 60 and a heat sink holder 70.
  • FIG. 6 is a perspective view showing the control board 41 according to the first embodiment of the present invention.
  • the control board 41 is a board on which a plurality of electronic components are mounted.
  • a heating element 50a such as a transistor or a diode that controls the operations of the compressor 6 and the outdoor blower 9 and a capacitor 50b are mounted.
  • the heat generating element 50a such as a transistor or a diode generates heat while the control board 41 is driven.
  • the heating element 50a and the capacitor 50b are mounted adjacent to each other. In the first embodiment, the case where three capacitors 50b are arranged in series and adjacent to the heating element 50a is illustrated, but the arrangement of the capacitors 50b is not limited to this.
  • FIG. 7 is a perspective view showing the capacitor 50b according to the first embodiment of the present invention.
  • the capacitor 50b has a terminal portion 50c on the bottom surface, and the terminal portion 50c is electrically connected to the capacitor 50b and the control board 41 to be conductively fixed by soldering or the like.
  • a mounting hole 41a is formed in the control board 41 at a position facing the terminal portion 50c of the capacitor 50b, and the terminal portion 50c is fitted into the mounting hole 41a and is conductively fixed by soldering or the like.
  • FIG. 8 is a front view showing the electrical component box 34 according to Embodiment 1 of the present invention.
  • the lead wire 42 is arranged between the heating element 50 a and the capacitor 50 b and connected to the control board 41.
  • the lead wire 42 supplies power for driving the control board 41, and is electrically connected to the control board 41 by soldering or the like.
  • the substrate holder 43 is a frame-shaped member that houses the control substrate 41, and is made of a resin such as ABS.
  • the cover 44 is a member that covers the substrate holder 43 that houses the control substrate 41, and constitutes the upper part of the electrical component box 34.
  • the cover 44 is made of, for example, a sheet metal, and suppresses dew or the like entering the inside of the electrical component box 34 to prevent the control board 41 from getting wet and electrically short-circuited, and the flame spreads from the control board 41 when a fire occurs. Suppress things.
  • the terminal block support 45 holds and fixes a terminal block (not shown) that supplies power for driving the control board 41 with screws or the like, and is fixed to the board holder 43 with screws or the like.
  • the heat sink 47 is made of, for example, aluminum and has a plurality of fins 47a.
  • the heat sink 47 is attached to the heating element 50a and dissipates heat generated from the heating element 50a.
  • the heat sink 47 is fixed to the control board 41 by a screw (not shown) or the like while being in contact with the heat generating element 50a.
  • the heat sink 47 cools the heating element 50a in order to prevent the temperature of the heating element 50a from rising.
  • the heat sink 47 is provided in the blower chamber 25 of the outdoor unit 2, and radiates heat from the air blown by the outdoor blower 9 to radiate heat from the heating element 50a. As a result, the heat sink 47 cools the heating element 50a.
  • the air guide 46 is a member that guides the air sent from the outdoor blower 9 to the heat sink 47, and is made of, for example, resin.
  • the air guide 46 is attached to the heat sink support 60, and allows the air flowing in the blower chamber 25 to efficiently contact the heat sink 47.
  • air guide 46 is made of resin in the first embodiment, air guide 46 does not have to be resin.
  • FIG. 9 is a perspective view showing the heat sink support 60 and the heat sink holder 70 according to the first embodiment of the present invention.
  • FIG. 10 is a perspective view of the heat sink support 60 and the heat sink holder 70 according to the first embodiment of the present invention viewed from an angle different from FIG. 9. As shown in FIGS. 5, 9 and 10, the heat sink support 60 and the heat sink holder 70 both support the heat sink 47.
  • FIG. 11 is a perspective view showing heat sink support 60 according to the first embodiment of the present invention.
  • the heat sink support 60 is, for example, a metal plate, and includes a fixing portion 61 fixed to the substrate holder 43, a wall portion 62 extending from the fixing portion 61 to the side opposite to the control substrate 41 side, and a wall portion 62. And a mounting portion 63 extending in the horizontal direction.
  • the fixed portion 61 is a frame-shaped member that is a support opening portion 61a with an opening in the center.
  • the heat sink 47 is inserted into the support opening 61a.
  • the fixing portion 61 is fixed to the substrate holder 43 to support and fix the electric component box 34 when the electric component box 34 is arranged on the upper end of the partition plate 33.
  • the wall 62 together with the partition plate 33, divides the inside of the outdoor unit 2 into a blower chamber 25 and a machine room 26.
  • the heat sink 47 is arranged in the blower chamber 25, and the capacitor 50b is arranged in the machine chamber 26.
  • the attachment portion 63 is a member to which the heat sink holder 70 is attached, and has a catch hole 63a and a positioning guide hole 63b formed on the bottom surface.
  • FIG. 12 is a perspective view showing heat sink holder 70 according to the first embodiment of the present invention.
  • FIG. 13 is a perspective view of the heat sink holder 70 according to the first embodiment of the present invention seen from an angle different from FIG. 12, and
  • FIG. 14 is a top view showing the heat sink holder 70 according to the first embodiment of the present invention.
  • the heat sink holder 70 is made of an insulating resin such as ABS and is provided between the heat sink 47 and the heat sink support 60 to electrically insulate the heat sink 47 and the heat sink support 60 from each other. .. This suppresses electricity from flowing between the heat sink support 60, which is a metal plate, and the heat sink 47.
  • the heat sink holder 70 has a frame portion 71, an extending portion 72, a flange portion 73, and a holding portion 74.
  • the frame portion 71 is a frame-shaped member that surrounds the outer periphery of the heat sink 47 and serves as a holder opening portion 71a having an opening in the center.
  • the frame 71 has a fitting wall 71b extending from the periphery of the holder opening 71a to the side opposite to the control board 41 side, and a protrusion 71c protruding from the fitting wall 71b.
  • the fitting wall 71b is fitted into the support opening 61a of the heat sink support 60.
  • the protrusion 71c is caught around the support opening 61a when the fitting wall 71b is fitted into the support opening 61a of the heat sink 47.
  • the fixing portion 61 of the heat sink support 60 and the frame portion 71 of the heat sink holder 70 are fixed.
  • the heat sink 47 is inserted into the holder opening 71a. In this way, the heat sink 47 is exposed in the blower chamber 25 by being inserted into the support opening 61a and the holder opening 71a. Therefore, the heat sink 47 is cooled by touching the air sent by the outdoor blower 9.
  • the extending portion 72 is a member extending between the heat sink 47 and the capacitor 50b from the frame portion 71 in the direction opposite to the control board 41 side.
  • the extending portion 72 extends along the wall portion 62 of the heat sink support 60 and faces the wall portion 62.
  • the extending portion 72 extends below the lower end of the capacitor 50b (see FIGS. 17 and 18).
  • the frame portion 71 and the extending portion 72 are integrally formed in the first embodiment, the frame portion 71 and the extending portion 72 may be formed separately.
  • the flange portion 73 is provided at the tip of the extending portion 72 and has a first hook claw 73a, a second hook claw 73b, and a positioning protrusion 73c.
  • the first hook claw 73a is provided on the bottom surface of the flange portion 73 and hooks in the hook hole 63a of the mounting portion 63 of the heat sink support 60.
  • the second hook claw 73b is provided on the bottom surface of the flange portion 73 and hooks on the edge portion of the attachment portion 63 of the heat sink support 60.
  • the positioning protrusion 73c is provided at a position facing the positioning guide hole 63b of the mounting portion 63 of the heat sink support 60.
  • the positioning protrusion 73c is fitted into the positioning guide hole 63b, whereby positioning is performed when the heat sink support 60 and the heat sink holder 70 are assembled.
  • the first hook 73a is hooked in the hook hole 63a, and the second hook 73b is attached to the edge of the mounting portion 63.
  • the part 73 is fixed.
  • FIG. 15 is a perspective view showing the holding portion 74 according to the first embodiment of the present invention
  • FIG. 16 is a top view showing the holding portion 74 according to the first embodiment of the present invention.
  • the holding portion 74 is a member that projects from the extending portion 72 and holds the lead wire 42.
  • the holding portion 74 is integrally formed with the extending portion 72.
  • the holding portion 74 is provided at a position below the lower end of the capacitor 50b in the extending portion 72 (see FIGS. 17 and 18).
  • the lead wires 42 are gathered at three places, three holding portions 74 are provided, but the number of holding portions 74 corresponds to the number of lead wires 42. Will be changed accordingly.
  • the holding portion 74 has an arm portion 81 and a slip-out preventing portion 82.
  • the arm portion 81 is a member that protrudes from the extending portion 72 and bends at the bending portion 81b so as to form a space 81a for holding the lead wire 42 therein with the extending portion 72.
  • the bending portion 81b of the arm portion 81 is bent by its own elastic force when an external force is applied.
  • the slip-out preventing portion 82 provided on the distal end side of the arm portion 81 separates from the extending portion 72.
  • the slip-out preventing portion 82 returns to the extending portion 72 side due to the elastic force.
  • the slip-out prevention portion 82 is a member that is provided at the tip of the arm portion 81 and that prevents the lead wire 42 from slipping out. Between the pull-out prevention portion 82 and the extending portion 72, the lead wire 42 expands together with the arm portion 81 when the lead wire 42 is inserted into the space 81a, and closes together with the arm portion 81 after the lead wire 42 is inserted into the space 81a. An inlet opening 82a having a width smaller than the thickness of the lead wire 42 is formed.
  • the inlet opening 82a opens when the slip-off preventing portion 82 separates from the extending portion 72 by an external force, and closes when the slip-out preventing portion 82 returns to the extending portion 72 side due to an elastic force.
  • the pull-out prevention portion 82 has a guide portion 83 that is inclined so as to guide the lead wire 42 into the space 81a when the lead wire 42 enters the space 81a from the outside.
  • the operator guides the lead wire 42 drawn from the control substrate 41 to the guide portion 83 of the holding portion 74 and guides it to the inlet opening 82a.
  • the operator guides the lead wire 42 to the inlet opening 82a and presses the lead wire 42 against the inlet opening 82a.
  • the bent portion 81b of the arm portion 81 bends, the slip-out preventing portion 82 separates from the extending portion 72, and the inlet opening 82a opens.
  • the operator passes the lead wire 42 through the opened inlet opening 82a and guides the lead wire 42 into the space 81a.
  • the lead wire 42 When the lead wire 42 reaches the space 81a, the external force applied to the slip-out preventing portion 82 disappears, and the slip-out preventing portion 82 returns to the extending portion 72 side by the elastic force. As a result, the inlet opening 82a is closed. Therefore, unless the worker applies an external force, the lead wire 42 is suppressed from coming out of the space 81a naturally.
  • FIG. 17 is an assembly perspective view showing the electric component box 34 according to the first embodiment of the present invention
  • FIG. 18 is a sectional view showing the electric component box 34 according to the first embodiment of the present invention.
  • the lead wire 42 pulled out to the lead portion 90 between the capacitor 50 b and the extending portion 72 is held by the holding portion 74.
  • the heat sink holder 70 holding the heat sink 47 has the extending portion 72 and the holding portion 74, and the holding portion 74 holds the lead wire 42. Therefore, even if the worker pulls the lead wire 42 during the assembly work or the like, the lead wire 42 does not move. Therefore, it is possible to prevent the lead wire 42 from coming into contact with the capacitor 50b. Further, since the heat sink holder 70 is made of resin, the holding portion 74 integrally formed with the heat sink holder 70 has few sharp portions. Therefore, damage to the lead wire 42 can be suppressed.
  • the holding portion 74 is provided in the extending portion 72 at a position lower than the lower end of the capacitor 50b. Therefore, since the lead wire 42 is held by the holding portion 74 below the lower end of the capacitor 50b, it is possible to further suppress contact with the capacitor 50b.
  • the holding portion 74 may be provided at a position above the lower end of the capacitor 50b as long as it can prevent the lead wire 42 from coming into contact with the capacitor 50b.
  • the lead wire 42 may be caught by the capacitor 50b mounted on the control board 41 and stress may be applied when the lead wire 42 is handled. In this case, stress stress is applied to the terminal portion 50c of the capacitor 50b, and the terminal portion 50c may be broken and the capacitor 50b may collapse and break, and the electrical continuity between the capacitor 50b and the control board 41 may not be secured.
  • the holding portion 74 holds the lead wire 42. Therefore, it is possible to prevent the lead wire 42 from coming into contact with the capacitor 50b. Therefore, the outdoor unit 2 including the highly reliable electric component box 34 can be realized.

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

Abstract

La présente invention concerne une unité extérieure comprenant un substrat de commande sur lequel un élément d'émission de chaleur et un condensateur sont montés l'un à côté de l'autre, un fil conducteur qui est disposé entre l'élément d'émission de chaleur et le condensateur et est connecté au substrat de commande, un dissipateur de chaleur qui est fixé à l'élément d'émission de chaleur et dissipe la chaleur produite à partir de l'élément d'émission de chaleur, et un support de dissipateur de chaleur destiné à supporter le dissipateur de chaleur. Le support de dissipateur de chaleur comprend : une partie cadre qui entoure la périphérie externe du dissipateur de chaleur ; une partie extension qui s'étend depuis la partie cadre dans une direction s'éloignant du substrat de commande, la partie extension étant située entre le dissipateur de chaleur et le condensateur ; et une partie maintien destinée à maintenir le fil conducteur, la partie maintien faisant saillie depuis la partie extension.
PCT/JP2018/043352 2018-11-26 2018-11-26 Unité extérieure WO2020110166A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2020557410A JP6972381B2 (ja) 2018-11-26 2018-11-26 室外機
PCT/JP2018/043352 WO2020110166A1 (fr) 2018-11-26 2018-11-26 Unité extérieure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2018/043352 WO2020110166A1 (fr) 2018-11-26 2018-11-26 Unité extérieure

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WO2020110166A1 true WO2020110166A1 (fr) 2020-06-04

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JP (1) JP6972381B2 (fr)
WO (1) WO2020110166A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102342121B1 (ko) * 2020-11-17 2021-12-21 엘지전자 주식회사 공기조화기
CN113915692A (zh) * 2020-07-07 2022-01-11 宁波奥克斯电气股份有限公司 一种电控盒组件、空调器及外机主板温度控制方法
WO2024134814A1 (fr) * 2022-12-22 2024-06-27 三菱電機株式会社 Unité de composant électrique, unité extérieure et dispositif à cycle de réfrigération
WO2024176996A1 (fr) * 2023-02-24 2024-08-29 株式会社富士通ゼネラル Unité extérieure de dispositif à cycle de pompe à chaleur

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