WO2020194665A1 - Dispositif de fixation de carte, dispositif de détection de fluide frigorigène et dispositif à cycle de réfrigération - Google Patents

Dispositif de fixation de carte, dispositif de détection de fluide frigorigène et dispositif à cycle de réfrigération Download PDF

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Publication number
WO2020194665A1
WO2020194665A1 PCT/JP2019/013612 JP2019013612W WO2020194665A1 WO 2020194665 A1 WO2020194665 A1 WO 2020194665A1 JP 2019013612 W JP2019013612 W JP 2019013612W WO 2020194665 A1 WO2020194665 A1 WO 2020194665A1
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WO
WIPO (PCT)
Prior art keywords
circuit board
bottom panel
refrigerant
substrate fixture
refrigerant detection
Prior art date
Application number
PCT/JP2019/013612
Other languages
English (en)
Japanese (ja)
Inventor
めぐみ 澤井
田澤　哲也
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 PCT/JP2019/013612 priority Critical patent/WO2020194665A1/fr
Priority to JP2021508601A priority patent/JPWO2020194665A1/ja
Priority to DE112019007101.7T priority patent/DE112019007101T5/de
Priority to CN201980093213.4A priority patent/CN113614464A/zh
Publication of WO2020194665A1 publication Critical patent/WO2020194665A1/fr

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/14—Mounting supporting structure in casing or on frame or rack
    • H05K7/1417—Mounting supporting structure in casing or on frame or rack having securing means for mounting boards, plates or wiring boards
    • H05K7/142—Spacers not being card guides
    • 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
    • F25B13/00—Compression machines, plants or systems, with reversible cycle
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/89—Arrangement or mounting of control or safety devices
    • 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
    • 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
    • F25B2600/00—Control issues
    • F25B2600/02—Compressor control
    • F25B2600/021—Inverters therefor
    • 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
    • F25B2600/00—Control issues
    • F25B2600/05—Refrigerant levels
    • 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/04—Refrigerant level

Definitions

  • the present invention relates to a substrate fixture for a circuit board of a refrigeration cycle device, and a refrigerant detection device and a refrigeration cycle device having the substrate fixture.
  • Patent Document 1 discloses a substrate fixture that can be mounted on an electrical component box in a state where the circuit board used in the refrigeration cycle device is tilted.
  • the refrigeration cycle device it may be necessary to mount a circuit board with different dimensions from the existing circuit board depending on the installation environment of the refrigeration cycle device.
  • a circuit board having a refrigerant detection sensor used in a refrigeration cycle device it is necessary to mount various types of circuit boards depending on the installation environment of the refrigeration cycle device. Since the board fixture of Patent Document 1 can only mount a circuit board having the same size as the existing circuit board, when mounting a circuit board having a different size, a different type of board fixture is newly mounted on the refrigeration cycle device. Need arises. Therefore, when the substrate fixture of Patent Document 1 is adopted for the refrigeration cycle apparatus, there is a problem that a space for mounting another type of substrate fixture is required.
  • the present invention solves the above-mentioned problems, and an object of the present invention is to provide a substrate fixture capable of saving space, a refrigerant detection device having the substrate fixture, and a refrigeration cycle apparatus.
  • the substrate fixture of the present invention includes a bottom panel, a first support leg provided on the bottom panel, extending in a direction away from the bottom panel, and having a first mounting surface for supporting the first circuit board, and the bottom surface.
  • the first mounting surface is provided with a second support leg provided on the panel, extending in a direction away from the bottom panel, and having a second mounting surface for supporting a second circuit board different from the first circuit board.
  • the second The virtual surface is arranged between the first virtual surface and the bottom panel, is inclined in the same direction as the first virtual surface toward the bottom panel, and is the first in a plan view. It overlaps with the virtual surface.
  • the refrigerant detection device of the present invention has the above-mentioned substrate fixture, at least one of the first circuit board and the second circuit board, and a plurality of slits, and the substrate fixture and the first circuit. It includes a substrate and a sensor cover accommodating at least one of the second circuit boards.
  • the refrigeration cycle device of the present invention includes the above-mentioned substrate fixture or the above-mentioned refrigerant detection device.
  • the area where the second circuit board is arranged is arranged on the side of the bottom panel of the area where the first circuit board is placed, and the first circuit board is arranged toward the bottom panel. It is inclined in the same direction as the region and overlaps with the region on which the first circuit board is placed in a plan view. Therefore, according to this configuration, it is possible to save space in the area where the circuit board is placed.
  • FIG. 3 is a plan view schematically showing the internal structure of the refrigerant detection device shown in FIG.
  • FIG. 6 is a schematic cross-sectional view showing a cross section taken along the line AA of FIG.
  • FIG. 1 is a schematic view showing a refrigerant circuit of an air conditioner 100a as an example of a refrigerant circuit of the refrigeration cycle device 100 according to the present embodiment.
  • the dimensional relationships and shapes of the constituent members may differ from the actual ones. Further, in the following drawings, the same members or parts or members or parts having the same functions are designated by the same reference numerals or omitted.
  • the air conditioner 100a includes an indoor unit 100a1 and an outdoor unit 100a2.
  • a connection valve 200 is provided in the indoor unit 100a1 and the outdoor unit 100a2, and the gas side pipe 300 and the liquid side pipe 400, which are refrigerant pipes, are connected to each other.
  • the air conditioner 100a is a cooling operation that supplies a low-temperature refrigerant to the indoor unit 100a1 by circulating a refrigerant between the indoor unit 100a1 and the outdoor unit 100a2, or a heating operation that supplies a high-temperature refrigerant to the indoor unit 100a1. Is done.
  • the flow of the refrigerant during the cooling operation is indicated by a solid arrow
  • the flow of the refrigerant during the heating operation is indicated by a dotted arrow.
  • the indoor unit 100a1 has an indoor heat exchanger 110.
  • the outdoor unit 100a2 includes a compressor 130, a refrigerant flow path switching device 150, an outdoor heat exchanger 170, and a decompression device 190.
  • the indoor heat exchanger 110, the compressor 130, the refrigerant flow path switching device 150, the outdoor heat exchanger 170, and the decompression device 190 are connected to each other by a refrigerant pipe.
  • the indoor heat exchanger 110 is a heat transfer device that transfers and exchanges heat energy between two fluids having different heat energies.
  • the indoor heat exchanger 110 functions as an evaporator that evaporates or vaporizes the refrigerant during the cooling operation, and functions as a condenser that condenses or liquefies the refrigerant during the heating operation.
  • the indoor heat exchanger 110 can be, for example, an air-cooled heat exchanger such as a fin-and-tube heat exchanger.
  • the compressor 130 is a fluid machine that compresses the sucked low-pressure refrigerant and discharges it as a high-pressure refrigerant.
  • a rotary compressor or a scroll compressor capable of changing the operating frequency and changing the operating capacity by an inverter circuit or the like is used.
  • the refrigerant flow path switching device 150 is a switching device in which the refrigerant flow path inside the refrigerant flow path switching device 150 is switched according to the switching from the cooling operation to the heating operation or the switching from the heating operation to the cooling operation. As shown in FIG. 1, the internal flow path of the refrigerant flow path switching device 150 is switched to the solid line path during the cooling operation and to the dotted line path during the heating operation.
  • the refrigerant flow path switching device 150 may be configured as a four-way valve to which an electromagnetic valve is applied, or may be configured by using a two-way valve or a three-way valve. Further, the refrigerant flow path switching device 150 can be omitted when, for example, the air conditioner 100a performs only one of the cooling operation and the heating operation.
  • the outdoor heat exchanger 170 is a heat transfer device that transfers and exchanges heat energy between two fluids having different heat energies.
  • the outdoor heat exchanger 170 functions as a condenser that condenses or liquefies the refrigerant during the cooling operation, and functions as an evaporator that evaporates or vaporizes the refrigerant during the heating operation.
  • the indoor heat exchanger 110 is, for example, an air-cooled type such as a fin-and-tube heat exchanger having two header tubes and a plurality of heat transfer tubes connected between the two header tubes. It can be a heat exchanger.
  • the decompression device 190 is a device that expands and depressurizes the high-pressure liquid refrigerant.
  • an expansion valve such as a linear electronic expansion valve whose opening degree can be adjusted in multiple stages or continuously, an expander which is a mechanical expansion valve, a capillary tube, or the like is used.
  • devices other than those described above for example, an oil separator, an accumulator, a supercooling heat exchanger, and the like can be arranged on the refrigerant circuit according to its function.
  • FIG. 2 is a perspective view schematically showing the configuration of the indoor unit 100a1 of the air conditioner 100a as an example of the refrigeration cycle device 100 according to the present embodiment.
  • the indoor unit 100a1 shown in FIG. 2 is a floor-standing indoor unit.
  • the indoor unit 100a1 has three front panels 100b and forms a design surface of the indoor unit 100a1.
  • the first front panel 100b1 located at the lowermost position among the three front panels 100b is formed as a detachable service panel.
  • the first front panel 100b1 is provided with an intake port 100b2 that communicates the inside and the outside of the indoor unit 100a1.
  • the first front panel 100b1 is arranged on the outer surface of the first front panel 100b1 and has a grill 100b3 that covers the intake port 100b2.
  • the second front panel 100b4 located at the uppermost position is provided with an exhaust port 100b5 that communicates the internal space and the external space of the indoor unit 100a1. Further, the second front panel 100b4 has a wind direction deflecting plate 100b6 attached to an inner peripheral wall surrounding the exhaust port 100b5.
  • the third front panel 100b7 located above the first front panel 100b1 and below the second front panel 100b4 is provided with an operation panel 100b8 which is a rescue output interface of the indoor unit 100a1. ing. Further, although not shown in FIG. 2, an indoor heat exchanger 110 is arranged inside the indoor unit 100a1 on the back side of the third front panel 100b7.
  • An indoor fan 110a is provided inside the indoor unit 100a1.
  • the indoor fan 110a is arranged inside the indoor unit 100a1 on the back side of the first front panel 100b1 so that the intake side of the indoor fan 110a faces the grill 100b3 of the first front panel 100b1.
  • the exhaust side of the indoor fan 110a is arranged so as to face the indoor heat exchanger 110 arranged inside the indoor unit 100a1 on the back side of the third front panel 100b7.
  • a centrifugal fan such as a sirocco fan is used as the indoor fan 110a.
  • the air outside the indoor unit 100a1 is sucked into the indoor unit 100a1 via the grill 100b3 of the first front panel 100b1.
  • the air sucked into the indoor unit 100a1 passes through the indoor heat exchanger 110 via the indoor fan 110a.
  • the indoor heat exchanger 110 heat exchange is performed between the air passing through the indoor heat exchanger 110 and the refrigerant flowing inside the indoor heat exchanger 110.
  • the heat-exchanged air is exhausted from the inside of the indoor unit 100a1 to the outside of the indoor unit 100a1 by the rotational drive of the indoor fan 110a via the wind direction deflecting plate 100b6 of the second front panel 100b4.
  • the indoor unit 100a1 is provided with a refrigerant detecting device 1 for detecting the leakage of the refrigerant from the refrigerant circuit inside the indoor unit 100a1.
  • the refrigerant detection device 1 is arranged inside the indoor unit 100a1 according to the type of refrigerant in the refrigerant circuit, the position of the joint of the refrigerant pipe, and the like. For example, when a refrigerant having a specific gravity higher than that of air such as R32 is used in the air conditioner 100a, the refrigerant detecting device 1 is arranged below the indoor fan 110a as shown in FIG.
  • FIG. 3 is a schematic plan view of the refrigerant detection device 1 shown in FIG.
  • the refrigerant detection device 1 includes a sensor cover 3 having a plurality of slits 3a.
  • the sensor cover 3 covers the substrate fixture 5 described later and the circuit board 7 mounted on the substrate fixture 5 to detect the refrigerant.
  • the leaked refrigerant flows into the refrigerant detection device 1 through a plurality of slits 3a together with the air flow, and is detected by a sensor provided on the circuit board 7.
  • a sensor provided on the circuit board 7.
  • the sensor cover 3 may be fixed to the housing of the indoor unit 100a1 via the base plate 9 by screwing or the like, or the indoor unit 3 may be fixed to the housing of the indoor unit 100a1 without the base plate 9. It may be directly fixed to the housing of 100a1 by screwing or the like.
  • FIG. 4 is a plan view schematically showing the internal structure of the refrigerant detection device 1 shown in FIG.
  • the sensor cover 3 is detached from the refrigerant detection device 1 of FIG.
  • the base plate 9 is provided with a fitting hole 9a for inserting and fixing a part of the sensor cover 3.
  • a substrate fixture 5 is mounted on the base plate 9.
  • the board fixture 5 is fixed to the base plate 9 by screwing or the like.
  • the substrate fixture 5 is fixed to the housing of the indoor unit 100a1 via the base plate 9, but is directly screwed to the housing of the indoor unit 100a1 without the base plate 9. It may be fixed by such as.
  • FIG. 5 is a plan view schematically showing the circuit board 7 according to the present embodiment.
  • the substrate fixture 5 when the substrate fixture 5 is used inside the refrigerant detection device 1, at least one circuit board 7 of the first refrigerant detection circuit board 71a and the second refrigerant detection circuit board 73a is mounted.
  • the first refrigerant detection circuit board 71a and the second refrigerant detection circuit board 73a will be referred to as a refrigerant detection circuit board 7a unless it is necessary to distinguish them.
  • the circuit board 7 that can be mounted on the board fixture 5 is not limited to the refrigerant detection circuit board 7a, and other circuit boards 7 used for the operation control of the refrigeration cycle device 100 can also be mounted.
  • the circuit board 7 mounted on the board fixture 5 may be an inverter circuit board or an operation control board.
  • the refrigerant detection circuit board 7a when it is not necessary to distinguish the refrigerant detection circuit board 7a from other circuit boards 7, the refrigerant detection circuit board 7a is referred to as a circuit board 7, and the first refrigerant detection circuit board 71a is referred to as a first circuit board. It is referred to as 71, and the second refrigerant detection circuit board 73a is referred to as a second circuit board 73.
  • first refrigerant detection sensor 71a1 and second refrigerant detection sensor 73a1 are mounted on the first refrigerant detection circuit board 71a and the second refrigerant detection circuit board 73a, respectively.
  • first refrigerant detection sensor 71a1 and the second refrigerant detection sensor 73a1 for example, an infrared type or semiconductor type refrigerant detection sensor 7a1 can be used depending on the type of refrigerant and the required accuracy of refrigerant detection.
  • the first refrigerant detection sensor 71a1 and the second refrigerant detection sensor 73a1 will be referred to as a refrigerant detection sensor 7a1 unless it is necessary to distinguish them.
  • an electric component other than the refrigerant detection sensor 7a for example, a connector 7a2 or a compensation circuit 7a3 can be mounted on the refrigerant detection circuit board 7a.
  • the connector 7a2 is an input / output interface that supplies operating power to the refrigerant detection circuit board 7a and transmits an electric signal from the refrigerant detection sensor 7a1.
  • the compensation circuit 7a3 is, for example, an electric component such as a temperature compensation circuit or a gas sensitivity adjustment circuit mounted for adjusting a sensing error of the refrigerant detection sensor 7a1.
  • the operation of the first refrigerant detection circuit board 71a and the second refrigerant detection circuit board 73a can be performed.
  • the types of electrical components required may differ. Therefore, the area of the first refrigerant detection circuit board 71a may be different from the area of the second refrigerant detection circuit board 73a.
  • FIG. 6 is a plan view schematically showing the substrate fixture 5 according to the present embodiment.
  • FIG. 7 is a schematic cross-sectional view showing a cross section taken along the line AA of FIG.
  • the substrate fixture 5 forms a front and back surface with the first surface 51a1 and the first surface 51a1 on which the circuit board 7 is mounted, and is attached to the indoor unit 100a1 which is an example of the refrigeration cycle device 100. It includes a bottom panel 51a having a second surface 51a2 to be attached.
  • the board fixture 5 includes a first support leg 53 that supports the first circuit board 71 of the circuit boards 7 and a second circuit board 73 of the circuit boards 7 so that two or more types of circuit boards 7 can be mounted.
  • a second support leg 55 for supporting is provided.
  • the first support leg 53 is provided on the first surface 51a1 of the bottom panel 51a and extends in a direction away from the first surface 51a1 of the bottom panel 51a. Further, the first support leg 53 has a first mounting surface 53a that supports the first circuit board 71 with points, sides, or surfaces.
  • the second support leg 55 is provided on the first surface 51a1 of the bottom panel 51a and extends in a direction away from the first surface 51a1 of the bottom panel 51a. Further, the second support leg 55 has a second mounting surface 55a that supports the second circuit board 73.
  • the area including the first mounting surface 53a and where the first circuit board 71 is arranged is defined as the first virtual surface A, including the second mounting surface 55a, and the second circuit board 73 is arranged.
  • the area to be created is referred to as the second virtual surface B.
  • the first virtual surface A is indicated by a dotted line
  • the second virtual surface B is indicated by a alternate long and short dash line.
  • the first virtual surface A and the second virtual surface B are displayed as rectangular areas surrounded by a dotted line and a dash-dotted line, respectively, for the purpose of clarifying the first virtual surface A and the second virtual surface B, respectively. There is.
  • the second virtual surface B overlaps with the first virtual surface A. ing. Further, as shown in FIG. 6, the second virtual surface B is arranged between the first virtual surface A and the bottom panel 51a. Further, the second virtual surface B is inclined toward the bottom panel 51a in the same direction as the first virtual surface A.
  • the second virtual surface B that is, the area where the second circuit board 73 is arranged is larger than the first virtual surface A, that is, the area where the first circuit board 71 is arranged, on the bottom panel 51a. Placed on the side. Further, the area where the second circuit board 73 is arranged is inclined toward the bottom panel 51a in the same direction as the area where the first circuit board 71 is arranged. Further, the area where the second circuit board 73 is arranged overlaps with the area where the first circuit board 71 is arranged in a plan view. According to this configuration, in a situation where different types of circuit boards 7 may be installed, different types of circuit boards 7 can be attached to the board fixture 5 without attaching a box or the like for another electric circuit. Can be installed.
  • circuit board 7 is attached so as to be inclined toward the bottom panel 51a, and the area on which the second circuit board 73 is placed overlaps with the area on which the first circuit board 71 is placed in a plan view. There is. Therefore, according to this configuration, it is possible to save space in the area where the circuit board 7 is placed.
  • the first support leg 53 is arranged at a position separated from the second virtual surface B, which is an area on which the second support leg 55 and the second circuit board 73 are placed. As shown in FIGS. 6 and 7, the first support leg 53 may have four legs 53b, and each leg 53b may be provided with a first mounting surface 53a. According to the first support leg 53, the four corners of the first circuit board 71 can be stably supported by the first mounting surface 53a.
  • the first support leg 53 has a different structure as long as it is arranged at a position away from the second support leg 55 and the second virtual surface B and can stably support the first circuit board 71. It may be adopted.
  • the first support leg 53 may be a U-shaped support leg, or may be a support leg that supports a part of two opposing inclined sides of the first circuit board 71.
  • the second support leg 55 is arranged at a position away from the first virtual surface A, which is an area on which the first support leg 53 and the first circuit board 71 are placed.
  • the second support leg 55 may have four legs 55b, and each leg 55b may be provided with a second mounting surface 55a. According to the second support leg 55, the four corners of the second circuit board 73 can be stably supported by the second mounting surface 55a.
  • the second support leg 55 has a different structure as long as it is arranged at a position separated from the first support leg 53 and the first virtual surface A and can stably support the second circuit board 73. It may be adopted.
  • the second support leg 55 may be a U-shaped support leg, or may be a support leg that supports a part of two opposing inclined sides of the second circuit board 73.
  • the substrate fixture 5 may extend in a direction away from the bottom panel 51a and include a side panel 51b provided on the peripheral edge of the first surface 51a1 of the bottom panel 51a. Good. By having the side panel 51b, the substrate fixture 5 can more firmly protect the circuit board 7 from an impact from the outer peripheral side of the bottom panel 51a.
  • the substrate fixture 5 can be provided with a first rib 51b1 that regulates the movement of the first circuit board 71 in a direction parallel to the bottom panel 51a.
  • the first rib 51b1 is provided on the side panel 51b, for example, extends from the side panel 51b in a direction intersecting the inclined direction of the first virtual surface A, and is a position where the first circuit board 71 is separated from the side panel 51b. Position to.
  • the first rib 51b1 is arranged at a position separated from the second support leg 55 and the second virtual surface B.
  • the substrate fixture 5 can be provided with a first locking claw 57 that regulates the movement of the first circuit board 71 in the direction away from the bottom panel 51a.
  • the first circuit board 71 can be sandwiched between the first locking claw 57 and the first mounting surface 53a of the first support leg 53.
  • the first locking claw 57 is arranged at an arbitrary position on the surface opposite to the surface of the first circuit board 71 supported by the first mounting surface 53a, it is the first. It is assumed that the first circuit board 71 is "sandwiched" between the 1 locking claw 57 and the first mounting surface 53a.
  • the first locking claw 57 can be arranged at a position away from the second support leg 55 and the second virtual surface B.
  • the first locking claw 57 supports a side on the bottom panel 51a side and an inclined side of the first circuit board 71 in the inclined direction of the first circuit board 71. it can.
  • a second rib 53c that restricts the movement of the second circuit board 73 in the direction parallel to the bottom panel 51a can be provided.
  • the second rib 53c is provided on the first support leg 53, for example, extends from the first support leg 53 in a direction intersecting the inclined direction of the second virtual surface B, and supports the second circuit board 73 for the first time. It can be positioned at a position away from the leg 53.
  • the second rib 53c is arranged at a position separated from the first support leg 53 and the first virtual surface A. Further, the second rib 53c can be configured to restrict the movement of the first circuit board 71 in the direction parallel to the bottom panel 51a.
  • the substrate fixture 5 can be provided with a second locking claw 59 that restricts the movement of the second circuit board 73 in the direction away from the bottom panel 51a.
  • the second circuit board 73 can be sandwiched between the second locking claw 59 and the second mounting surface 55a of the second support leg 55.
  • the second locking claw 59 is arranged at an arbitrary position on the surface opposite to the surface of the second circuit board 73 supported by the second mounting surface 55a, the second locking claw 59 is the second. It is assumed that the second circuit board 73 is "sandwiched" between the two locking claws 59 and the second mounting surface 55a.
  • the second locking claw 59 can be arranged at a position away from the first support leg 53 and the first virtual surface A.
  • the first locking claw 57 can support opposite sides of the first circuit board 71 in the inclined direction.
  • FIG. 8 is an enlarged plan view schematically showing a state in which the first circuit board 71 is attached to the board fixture 5 according to the present embodiment.
  • FIG. 9 is a schematic cross-sectional view showing the BB cross section of FIG.
  • the first circuit board 71 should be supported when the first circuit board 71 is attached to the substrate fixture 5.
  • the position can be easily matched to the first mounting surface 53a. Therefore, in the substrate fixture 5, by having the first rib 51b1, the time required for mounting the first circuit board 71 can be reduced. Further, in the state where the first circuit board 71 is installed, the deviation of the first circuit board 71 in the direction intersecting the inclination direction of the first virtual surface A can be reduced, so that the first circuit board 71 is damaged or the like. Can be avoided. Therefore, in the substrate fixture 5, the stable operation of the first circuit board 71 can be ensured by having the first rib 51b1.
  • the substrate fixture 5 since the substrate fixture 5 has the first locking claw 57, when the first circuit board 71 is attached to the substrate fixture 5, the first circuit board 71 is fitted into the first locking claw 57. Can be supported. Therefore, the substrate fixture 5 can reduce the time required for mounting the first circuit board 71 by having the first locking claw 57. Further, in the state where the first circuit board 71 is installed, the deviation of the first circuit board 71 in the direction away from the first support leg 53 can be reduced, so that damage to the first circuit board 71 can be avoided. Therefore, the substrate fixture 5 can ensure the stable operation of the first circuit board 71 by having the first locking claw 57.
  • the substrate fixture 5 can omit either or both of the first rib 51b1 and the first locking claw 57.
  • first circuit board 71 when the first circuit board 71 is fixed to the first mounting surface 53a of the first support leg 53 by screwing or the like, both the first rib 51b1 and the first locking claw 57, or the first locking claw 57 can be omitted.
  • the first rib 51b1 when the inclined side of the first circuit board 71 is at the same position as the side panel 51b, the first rib 51b1 can be omitted.
  • FIG. 10 is an enlarged plan view schematically showing a state in which the second circuit board 73 is attached to the board fixture 5 according to the present embodiment.
  • FIG. 11 is a schematic cross-sectional view showing the CC cross section of FIG.
  • the second circuit board 73 should be supported when the second circuit board 73 is attached to the substrate fixture 5.
  • the position can be easily matched to the second mounting surface 55a. Therefore, in the substrate fixture 5, by having the second rib 53c, the time required for mounting the second circuit board 73 can be reduced. Further, in the state where the second circuit board 73 is installed, the deviation of the second circuit board 73 in the direction intersecting the inclination direction of the second virtual surface B can be reduced, so that the second circuit board 73 is damaged or the like. Can be avoided. Therefore, the substrate fixture 5 can ensure the stable operation of the second circuit board 73 by having the second rib 53c.
  • the substrate fixture 5 since the substrate fixture 5 has the second locking claw 59, when the second circuit board 73 is attached to the substrate fixture 5, the second circuit board 73 is fitted into the second locking claw 59. Can be supported. Therefore, the substrate fixture 5 can reduce the time required for mounting the second circuit board 73 by having the second locking claw 59. Further, in the state where the second circuit board 73 is installed, the deviation of the second circuit board 73 in the direction away from the second support leg 55 can be reduced, so that damage to the second circuit board 73 can be avoided. Therefore, the substrate fixture 5 can ensure the stable operation of the second circuit board 73 by having the second locking claw 59.
  • either one or both of the second rib 53c and the second locking claw 59 can be omitted.
  • both the second rib 53c and the second locking claw 59, or the second locking claw 59 can be omitted.
  • the inclined side of the second circuit board 73 is at the same position as the side panel 51b, the second rib 53c can be omitted.
  • the refrigerating cycle device 100 a separate type air conditioner 100a having an indoor unit 100a1 and an outdoor unit 100a2 has been described, but the refrigerating cycle device 100 is another type of refrigerating cycle device 100.
  • the refrigeration cycle device 100 can be an integrated air conditioner 100a, a refrigerator, a showcase, a vending machine, a dehumidifier, or the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Mounting Of Printed Circuit Boards And The Like (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)

Abstract

L'invention concerne un dispositif de fixation de carte, pour monter une première carte de circuit imprimé et/ou une deuxième carte de circuit imprimé sur un dispositif à cycle de réfrigération, pourvu d'une première patte support qui présente une première surface de montage pour supporter la première carte de circuit imprimé et d'une deuxième patte support qui présente une deuxième surface de montage pour supporter la deuxième carte de circuit imprimé ; lorsqu'on définit un premier plan imaginaire en tant que région où la première carte de circuit imprimé est montée et qui est formée par liaison des bords externes de la première surface de montage et lorsqu'on définit un deuxième plan imaginaire en tant que région où la deuxième carte de circuit imprimé est montée et qui est formée par liaison des bords externes de la deuxième surface de montage, le deuxième plan imaginaire est disposé entre le premier plan imaginaire et le panneau inférieur, fait face au panneau inférieur et est incliné dans la même direction que celle du premier plan imaginaire et chevauche le premier plan imaginaire dans une vue en plan. En outre, le dispositif de détection de fluide frigorigène est pourvu du dispositif de fixation de carte susmentionné. En outre, le dispositif à cycle de réfrigération est pourvu du dispositif de fixation de carte susmentionné ou du dispositif de détection de fluide frigorigène susmentionné.
PCT/JP2019/013612 2019-03-28 2019-03-28 Dispositif de fixation de carte, dispositif de détection de fluide frigorigène et dispositif à cycle de réfrigération WO2020194665A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PCT/JP2019/013612 WO2020194665A1 (fr) 2019-03-28 2019-03-28 Dispositif de fixation de carte, dispositif de détection de fluide frigorigène et dispositif à cycle de réfrigération
JP2021508601A JPWO2020194665A1 (ja) 2019-03-28 2019-03-28 基板固定具、冷媒検知装置、及び冷凍サイクル装置
DE112019007101.7T DE112019007101T5 (de) 2019-03-28 2019-03-28 Platinen-Befestigungskomponente, Kältemittel-Erfassungsvorrichtung und Kältekreislaufgerät
CN201980093213.4A CN113614464A (zh) 2019-03-28 2019-03-28 基板固定器、制冷剂检测装置以及制冷循环装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2019/013612 WO2020194665A1 (fr) 2019-03-28 2019-03-28 Dispositif de fixation de carte, dispositif de détection de fluide frigorigène et dispositif à cycle de réfrigération

Publications (1)

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WO2020194665A1 true WO2020194665A1 (fr) 2020-10-01

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Country Status (4)

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JP (1) JPWO2020194665A1 (fr)
CN (1) CN113614464A (fr)
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JP7305086B1 (ja) * 2022-04-05 2023-07-07 三菱電機株式会社 報知機

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WO2009098848A1 (fr) * 2008-02-08 2009-08-13 Panasonic Corporation Climatiseur
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JP5464225B2 (ja) 2012-03-26 2014-04-09 ダイキン工業株式会社 空気調和装置の室内機
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Publication number Priority date Publication date Assignee Title
JP7229451B1 (ja) * 2022-04-05 2023-02-27 三菱電機株式会社 報知機
JP7305086B1 (ja) * 2022-04-05 2023-07-07 三菱電機株式会社 報知機
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DE112019007101T5 (de) 2021-12-09
CN113614464A (zh) 2021-11-05

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