WO2021200129A1 - Dispositif à cycle de réfrigération - Google Patents

Dispositif à cycle de réfrigération Download PDF

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Publication number
WO2021200129A1
WO2021200129A1 PCT/JP2021/010684 JP2021010684W WO2021200129A1 WO 2021200129 A1 WO2021200129 A1 WO 2021200129A1 JP 2021010684 W JP2021010684 W JP 2021010684W WO 2021200129 A1 WO2021200129 A1 WO 2021200129A1
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WO
WIPO (PCT)
Prior art keywords
intermediate plate
compressor
gravity
center
refrigeration cycle
Prior art date
Application number
PCT/JP2021/010684
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English (en)
Japanese (ja)
Inventor
大野　正雄
岡本　哲也
和志 久山
柯壁 陳
宜伸 津村
正倫 浮舟
Original Assignee
ダイキン工業株式会社
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 ダイキン工業株式会社 filed Critical ダイキン工業株式会社
Priority to CN202180020724.0A priority Critical patent/CN115349068A/zh
Priority to EP21779502.0A priority patent/EP4113019A4/fr
Priority to AU2021249161A priority patent/AU2021249161B2/en
Priority to CA3171967A priority patent/CA3171967A1/fr
Publication of WO2021200129A1 publication Critical patent/WO2021200129A1/fr
Priority to US17/956,477 priority patent/US20230024725A1/en

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Classifications

    • 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
    • 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
    • F24F1/08—Compressors specially adapted for separate outdoor units
    • F24F1/12—Vibration or noise prevention thereof
    • 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
    • F25B1/00—Compression machines, plants or systems with non-reversible cycle
    • F25B1/10—Compression machines, plants or systems with non-reversible cycle with multi-stage compression
    • 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
    • F25B31/00—Compressor arrangements
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • 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
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/13—Economisers

Definitions

  • This disclosure relates to a refrigeration cycle device.
  • Patent Document 1 has an intermediate having a first anti-vibration mount provided on the bottom plate of the machine room and a second anti-vibration mount supported by the first anti-vibration mount and to which the legs of the compressor are attached.
  • a heat pump outdoor unit with a base is disclosed.
  • the purpose of this disclosure is to reduce the installation area for installing multiple compressors.
  • the first aspect of the present disclosure is a refrigeration cycle apparatus including a housing (2) having a bottom member (3) and a plurality of compressors housed in the housing (2).
  • the compressor includes at least a first compressor (10) and a second compressor (20), and the first compressor (10) and the second compressor (20) are a plurality of first elastic members. It is supported by the same intermediate plate (5) via (11), and the intermediate plate (5) is supported by the bottom member (3) via a second elastic member (12).
  • the intermediate plate (5) is supported by the bottom member (3) via the second elastic member (12).
  • the first compressor (10) and the second compressor (20) are supported by the same intermediate plate (5) via a plurality of first elastic members (11).
  • the installation area can be reduced as compared with the case where the first compressor (10) and the second compressor (20) are separately installed separately. Further, since the total weight of the structure supported by the second elastic member (12) is increased, the anti-vibration effect is improved.
  • the intermediate plate (5) is a first intermediate plate (15) on which the first compressor (10) is supported, and the second compressor ( It is configured by integrally connecting with the second intermediate plate (25) on which 20) is supported.
  • first intermediate plate (15) and the second intermediate plate (25) are integrally connected to form the intermediate plate (5).
  • the first compressor (10) and the second compressor (20) are supported by the first intermediate plate (15) and the second intermediate plate (25), respectively.
  • the installation area can be reduced as compared with the case where the first intermediate plate (15) and the second intermediate plate (25) are separately installed separately.
  • a third aspect of the present disclosure is, in the second aspect, the plurality of compressors further includes a third compressor (70), wherein the third compressor (70) is a first elastic member (11).
  • the intermediate plate (5) is supported by the first intermediate plate (15), the second intermediate plate (25), and the third intermediate plate (75). It is configured by being integrally connected.
  • the first intermediate plate (15), the second intermediate plate (25), and the third intermediate plate (75) are integrally connected to form the intermediate plate (5).
  • the third compressor (70) is supported by the third intermediate plate (75).
  • the third compressor (70) can be added with the minimum design change of adding the third intermediate plate (75) and connecting it integrally with the other intermediate plates.
  • a fourth aspect of the present disclosure is, in the second aspect, the plurality of compressors further includes a third compressor (70), wherein the third compressor (70) is a first elastic member (11). It is supported by the second intermediate plate (25) via the above.
  • the third compressor (70) is supported by the second intermediate plate (25) via the first elastic member (11).
  • the third compressor (70) can be added with the minimum design change for supporting the second compressor (20) and the third compressor (70) on the second intermediate plate (25).
  • the first intermediate plate (15) and the second intermediate plate (25) partially overlap each other in a plan view. It is connected together in a state of being.
  • a part of the first intermediate plate (15) and the second intermediate plate (25) are integrally connected in a state of being overlapped in a plan view.
  • the first intermediate plate (15) and the second intermediate plate (25) are integrally brazed or welded. It is connected.
  • first intermediate plate (15) and the second intermediate plate (25) are integrally connected by brazing or welding.
  • the first intermediate plate (15) and the second intermediate plate (25) are integrally connected by rivets or bolts. Has been done.
  • first intermediate plate (15) and the second intermediate plate (25) are integrally connected by rivets or bolts.
  • the first intermediate plate (15) and the second intermediate plate (25) are the third elastic member (13). It is integrally connected via.
  • first intermediate plate (15) and the second intermediate plate (25) are integrally connected via the third elastic member (13).
  • the weight of the second compressor (20) is smaller than the weight of the first compressor (10).
  • the vibration of the second compressor (20) is measured by the weight of the first compressor (10). Can be reduced.
  • the center of gravity of the intermediate plate (5) and the plurality of compressors combined in a plan view is P1, and the plan view is the same.
  • the arrangement center of gravity of the second elastic member (12) is Q1
  • the distance from the center of gravity P1 to the center of gravity of the compressor closest to the center of gravity P1 in a plan view is r1
  • the arrangement center of gravity Q1 is centered on the center of gravity P1. It is located in a region whose radius is the distance r1.
  • the arranged center of gravity Q1 is located in a region whose radius is the distance r1 from the center of gravity P1 to the center of gravity of the compressor closest to the center of gravity P1 in a plan view.
  • the center of gravity P1 and the arranged center of gravity Q1 substantially coincide with each other in a plan view.
  • the center of gravity P1 substantially coincides with the arranged center of gravity Q1 in a plan view.
  • a twelfth aspect of the present disclosure is, in any one of the first to ninth aspects, the intermediate plate (5), the plurality of compressors, and the refrigerant arranged on the intermediate plate (5) in a plan view.
  • the center of gravity of the circuit components (31) combined is P2
  • the center of gravity of the second elastic member (12) is Q1 in plan view
  • the arrangement center of gravity Q1 is located in a region centered on the center of gravity P2 and having the distance r2 as a radius.
  • the arranged center of gravity Q1 is located in a region whose radius is the distance r2 from the center of gravity P2 to the center of gravity of the compressor closest to the center of gravity P2 in a plan view.
  • the center of gravity P2 and the arranged center of gravity Q1 substantially coincide with each other in a plan view.
  • the center of gravity P2 substantially coincides with the arranged center of gravity Q1 in a plan view.
  • the fourth elasticity is formed between the intermediate plate (5) and the bottom member (3) at a position overlapping the center of gravity P1 in a plan view.
  • the member (14) is arranged.
  • the fourth elastic member (14) is arranged between the intermediate plate (5) and the bottom member (3).
  • the fourth elastic member (14) is arranged at a position overlapping the center of gravity P1 in a plan view.
  • the deflection of the intermediate plate (5) due to the vibration of the compressor can be reduced by arranging the fourth elastic member (14) according to the position of the center of gravity.
  • a fifteenth aspect of the present disclosure is, in the twelfth or thirteenth aspect, a fourth elastic position between the intermediate plate (5) and the bottom member (3) at a position overlapping the center of gravity P2 in a plan view.
  • the member (14) is arranged.
  • the fourth elastic member (14) is arranged between the intermediate plate (5) and the bottom member (3).
  • the fourth elastic member (14) is arranged at a position overlapping the center of gravity P2 in a plan view.
  • the deflection of the intermediate plate (5) due to the vibration of the compressor can be reduced by arranging the fourth elastic member according to the position of the center of gravity.
  • a sixteenth aspect of the present disclosure comprises a control unit (100) that controls the operation of the plurality of compressors in any one of the first to fifteenth aspects, and the control unit (100) is the control unit (100).
  • the rotation of the plurality of compressors is controlled so that the centrifugal forces generated by the plurality of compressors are canceled by each other.
  • the centrifugal force generated by the plurality of compressors is canceled by controlling the rotation of the plurality of compressors.
  • FIG. 1 is a piping diagram illustrating the configuration of the refrigeration cycle device of the first embodiment.
  • FIG. 2 is a front view showing the configuration of the refrigeration cycle device.
  • FIG. 3 is a plan view showing the configuration of the refrigeration cycle apparatus.
  • FIG. 4 is a plan view illustrating the arrangement of the first compressor and the second compressor.
  • FIG. 5 is a view corresponding to FIG. 4 according to a modified example of the first embodiment.
  • FIG. 6 is a front view showing the configuration of the refrigeration cycle apparatus according to the second embodiment.
  • FIG. 7 is a front view showing the configuration of the refrigeration cycle apparatus according to the third embodiment.
  • FIG. 8 is a front view showing the configuration of the refrigeration cycle apparatus according to the fourth embodiment.
  • FIG. 9 is a front view showing the configuration of the refrigeration cycle apparatus according to the fifth embodiment.
  • FIG. 10 is a plan view showing the configuration of the refrigeration cycle device.
  • FIG. 11 is a plan view showing the arrangement of each device on the intermediate plate in the refrigeration cycle device according to the sixth embodiment.
  • FIG. 12 is a plan view showing the arrangement of each device on the intermediate plate in the refrigeration cycle device according to the seventh embodiment.
  • FIG. 13 is a plan view showing the arrangement of each device on the intermediate plate in the refrigeration cycle device according to the eighth embodiment.
  • the refrigeration cycle apparatus (1) heats the target fluid.
  • the target fluid is water.
  • the refrigeration cycle device (1) supplies heated water to utilization equipment such as a hot water supply tank, a coil for heating, and a coil for floor heating.
  • the refrigeration cycle device (1) cools the target fluid.
  • the target fluid is water.
  • the refrigeration cycle device (1) supplies the cooled water to the utilization equipment such as a cooling coil.
  • the refrigeration cycle device (1) includes a refrigerant circuit (30) and a control unit (100).
  • the refrigerant circuit (30) consists of a first compressor (10), a second compressor (20), a four-way switching valve (33), a heat source side heat exchanger (34), and a check valve bridge (35). ), An expansion valve (36), a user-side heat exchanger (37), an accumulator (38), and an intermediate heat exchanger (45).
  • the refrigerant circuit (30) is filled with refrigerant.
  • the refrigeration cycle is performed by circulating the refrigerant.
  • the refrigerant is, for example, R410A, R32, R407C and the like.
  • the first compressor (10) is, for example, a scroll type compressor.
  • the first compressor (10) is provided on the discharge side of the second compressor (20).
  • a first suction pipe (51) and a first discharge pipe (52) are connected to the first compressor (10).
  • the first compressor (10) compresses the sucked refrigerant and discharges the compressed refrigerant.
  • the first compressor (10) has a larger capacity than the second compressor (20).
  • the rotation speed of the first compressor (10) is variable. For example, by changing the output frequency of the inverter (not shown) connected to the first compressor (10), the rotation speed of the motor changes. As a result, the rotation speed (operating frequency) of the first compressor (10) changes.
  • the second compressor (20) is, for example, a scroll type compressor.
  • the second compressor (20) is provided on the suction side of the first compressor (10).
  • a second suction pipe (53) and a second discharge pipe (54) are connected to the second compressor (20).
  • the connecting pipe (50) is formed by connecting the inflow end of the first suction pipe (51) and the outflow end of the second discharge pipe (54).
  • the second compressor (20) and the first compressor (10) are connected in series via a connecting pipe (50).
  • the second compressor (20) compresses the sucked refrigerant and discharges the compressed refrigerant.
  • the rotation speed of the second compressor (20) is variable. For example, by changing the output frequency of the inverter (not shown) connected to the second compressor (20), the rotation speed of the motor changes. As a result, the rotation speed (operating frequency) of the second compressor (20) changes.
  • the four-way switching valve (33) is an electric switching valve.
  • the four-way switching valve (33) is switched between a first state (a state shown by a solid line in FIG. 1) and a second state (a state shown by a broken line in FIG. 1).
  • the first port (P1) is connected to the outflow end of the first discharge pipe (52).
  • the second port (P2) is connected to the inflow end of the second suction pipe (53).
  • the third port (P3) communicates with the gas side end of the heat source side heat exchanger (34).
  • the fourth port (P4) communicates with the gas side end of the user side heat exchanger (37).
  • the heat source side heat exchanger (34) is an outdoor heat exchanger.
  • a fan (39) is arranged in the vicinity of the heat source side heat exchanger (34). By driving the fan (39), the refrigerant of the heat source side heat exchanger (34) and the outdoor air exchange heat.
  • the check valve bridge (35) has four check valves (C). Each of the four check valves (C) allows the flow of refrigerant in the direction indicated by the arrow in FIG. 1 and limits the flow of refrigerant in the opposite direction.
  • One end of the main liquid pipe (55) is connected to the inflow side of the check valve bridge (35).
  • the other end of the main liquid pipe (55) is connected to the outflow side of the check valve bridge (35).
  • the check valve bridge (35) communicates with the liquid side end of the heat source side heat exchanger (34) and the liquid side end of the utilization side heat exchanger (37).
  • the expansion valve (36) expands the refrigerant to reduce the pressure of the refrigerant.
  • the expansion valve (36) is composed of an electronic expansion valve whose opening degree can be adjusted.
  • the expansion valve (36) is connected to the main liquid pipe (55).
  • the user-side heat exchanger (37) exchanges heat between the refrigerant and water.
  • the user-side heat exchanger (37) has a first flow path (37a) and a second flow path (37b).
  • the first flow path (37a) is a flow path through which the refrigerant flows.
  • the second flow path (37b) is a flow path through which water flows.
  • the second flow path (37b) is connected in the middle of a user-side circuit (65) provided in a user-used device (not shown).
  • the refrigerant flowing through the first flow path (37a) and the water flowing through the second flow path (37b) exchange heat.
  • the accumulator (38) is connected in the middle of the second suction pipe (53).
  • the accumulator (38) is a gas-liquid separator. In the accumulator (38), it is separated into a liquid refrigerant and a gas refrigerant.
  • the accumulator (38) is configured such that only the gas refrigerant flows out of the accumulator (38).
  • the bypass circuit (60) has a bypass pipe (PB) and a bypass check valve (61).
  • the bypass pipe (PB) is connected between the second suction pipe (53) and the connecting pipe (50).
  • the bypass check valve (61) allows the flow of refrigerant in the direction from the second suction pipe (53) to the connecting pipe (50) and limits the flow of refrigerant in the opposite direction.
  • the injection circuit (40) is a circuit that supplies a part of the refrigerant flowing through the main liquid pipe (55) to the suction side of the first compressor (10).
  • the injection circuit (40) has an injection pipe (PJ), an injection expansion valve (41), and an on-off valve (42).
  • One end of the injection pipe (PJ) is connected between the expansion valve (36) and the check valve bridge (35) in the main liquid pipe (55).
  • the other end of the injection pipe (PJ) is branched into two, and is connected to the first suction pipe (51) and the compression chamber in the middle of compression of the first compressor (10), respectively.
  • the injection expansion valve (41) is connected to the upstream side of the intermediate heat exchanger (45) in the injection pipe (PJ).
  • the injection expansion valve (41) depressurizes the refrigerant flowing through the injection pipe (PJ).
  • the on-off valve (42) can be switched between the open state and the closed state. By opening the on-off valve (42), a part of the refrigerant flowing through the injection pipe (PJ) is supplied to the suction side of the first compressor (10). By closing the on-off valve (42), the refrigerant flowing through the injection pipe (PJ) is supplied to the compression chamber in the middle of compression of the first compressor (10).
  • the intermediate heat exchanger (45) has a third flow path (45a) and a fourth flow path (45b).
  • the third flow path (45a) is connected in the middle of the main liquid pipe (55).
  • the fourth flow path (45b) is connected in the middle of the injection pipe (PJ).
  • the refrigerant flowing through the third flow path (45a) and the refrigerant flowing through the fourth flow path (45b) exchange heat.
  • the refrigeration cycle device (1) has various sensors such as a temperature sensor that detects the temperature of the refrigerant and the like, and a pressure sensor that detects the pressure of the refrigerant and the like. Signals indicating the detection results of various sensors are transmitted to the control unit (100).
  • the refrigeration cycle device (1) has a control unit (100).
  • the control unit (100) includes a microcomputer and a memory device for storing software for operating the microcomputer.
  • the control unit (100) controls the refrigerant circuit (30) based on signals from various sensors and external control signals.
  • the control unit (100) includes a first compressor (10), a second compressor (20), a four-way switching valve (33), an expansion valve (36), an injection expansion valve (41), an on-off valve (42), etc. Outputs a control signal to.
  • the detection values of various sensors are input to the control unit (100).
  • the refrigeration cycle device (1) In the refrigeration cycle device (1), a heating operation and a cooling operation are performed.
  • the first compressor (10) functions as a high-stage compressor
  • the second compressor (20) functions as a low-stage compressor.
  • Heating operation a refrigeration cycle is performed in which the heat exchanger (37) on the user side serves as a condenser (radiator) and the heat exchanger (34) on the heat source side serves as an evaporator. Specifically, the four-way switching valve (33) is set to the first state.
  • the refrigerant discharged from the first compressor (10) passes through the four-way switching valve (33), dissipates heat to water in the heat exchanger (37) on the user side, and condenses.
  • the refrigerant flowing out of the heat exchanger (37) on the user side passes through the check valve bridge (35) and flows through the main liquid pipe (55).
  • the refrigerant flowing through the main liquid pipe (55) dissipates heat to the refrigerant flowing through the fourth flow path (45b) in the third flow path (45a) of the intermediate heat exchanger (45) and is supercooled. After that, a part of the refrigerant flowing through the main liquid pipe (55) flows into the injection pipe (PJ), and the remaining refrigerant is depressurized by the expansion valve (36) of the main liquid pipe (55).
  • the decompressed refrigerant passes through the check valve bridge (35) and evaporates in the heat source side heat exchanger (34).
  • the refrigerant flowing out of the heat source side heat exchanger (34) passes through the four-way switching valve (33) and the accumulator (38) in order, is sucked into the second compressor (20), and is compressed.
  • the refrigerant discharged from the second compressor (20) is sucked into the first compressor (10) and compressed.
  • the refrigerant that has flowed into the injection pipe (PJ) is decompressed by the injection expansion valve (41), and from the refrigerant that flows through the third flow path (45a) in the fourth flow path (45b) of the intermediate heat exchanger (45). It absorbs heat and evaporates. After that, the refrigerant flowing through the injection pipe (PJ) is introduced into the first suction pipe (51) of the first compressor (10).
  • ⁇ Cooling operation> In the cooling operation, a refrigeration cycle is performed in which the heat source side heat exchanger (34) serves as a condenser (radiator) and the user side heat exchanger (37) serves as an evaporator. Specifically, the four-way switching valve (33) is set to the second state. The description of the flow of the refrigerant during the cooling operation will be omitted.
  • the refrigeration cycle apparatus (1) includes a housing (2).
  • the housing (2) has a bottom member (3) and a cover member (4).
  • the inside of the housing (2) is divided into a heat exchange chamber (S1) and a machine room (S2) by a partition plate (5).
  • the cover member (4) covers the heat exchange chamber (S1) and the machine chamber (S2).
  • a heat source side heat exchanger (34) and a fan (39) are arranged in the heat exchange chamber (S1). By driving the fan (39), heat is exchanged between the refrigerant flowing through the heat source side heat exchanger (34) and the outdoor air.
  • a plurality of devices surrounded by virtual borders in Fig. 1 are arranged. Specifically, in the machine room (S2), a first compressor (10), a second compressor (20), and a refrigerant circuit component (31) constituting the refrigerant circuit (30) are arranged. .. Although not shown, a control unit (100) is arranged in the machine room (S2).
  • the first compressor (10) is supported by the intermediate plate (5) via a plurality of first elastic members (11). Specifically, the first compressor (10) has a first support leg (16). Three first elastic members (11) are arranged between the first support leg (16) and the intermediate plate (5).
  • the second compressor (20) is supported by the same intermediate plate (5) via a plurality of first elastic members (11). Specifically, the second compressor (20) has a second support leg (26). Three first elastic members (11) are arranged between the second support leg (26) and the intermediate plate (5).
  • the first elastic member (11) may be composed of a large piece or may be divided into two or more pieces as long as it can support the first compressor (10) and the second compressor (20). good.
  • the first elastic member (11) is made of rubber or urethane.
  • the intermediate plate (5) is supported by the bottom member (3) of the housing (2) via a plurality of second elastic members (12).
  • second elastic members (12) are arranged between the intermediate plate (5) and the bottom member (3).
  • the second elastic member (12) is arranged at each of the four corners of the intermediate plate (5).
  • the second elastic member (12) may be composed of a large piece or may be divided into two or more pieces.
  • the second elastic member (12) is made of rubber or urethane.
  • the material and spring constant of the first elastic member (11) and the material and spring constant of the second elastic member (12) may be the same as or different from each other.
  • the first compressor (10) and the second compressor (20) are placed on a double anti-vibration structure via a first elastic member (11), an intermediate plate (5), and a second elastic member (12). Be placed. Therefore, even if the first compressor (10) and the second compressor (20) vibrate during the operation of the refrigeration cycle device (1), the transmission of the vibration and the generation of noise are suppressed.
  • the first compressor (10) and the second compressor (20) are supported by the same intermediate plate (5) via a plurality of first elastic members (11). As a result, the installation area can be reduced as compared with the case where the first compressor (10) and the second compressor (20) are separately installed separately. Further, since the total weight of the structure supported by the second elastic member (12) is increased, the anti-vibration effect is improved.
  • the first compressor (10) Since the first compressor (10) has a larger capacity than the second compressor (20), the first compressor (10) is heavier than the second compressor (20). Therefore, the vibration of the second compressor (20), which has a relatively small weight, can be reduced by the weight of the first compressor (10).
  • the center of gravity of arrangement is the point that becomes the center (belly) of the vibration of the intermediate plate (5). In other words, it is the point where the amplitude becomes the largest when the intermediate plate (5) vibrates.
  • the four second elastic members (12) are composed of the same material, the same area, and the same thickness. Therefore, the center of gravity Q1 for arranging the second elastic member (12) is a straight line connecting the upper left and lower right second elastic members (12) in FIG. 4, and the second elastic member (12) in the lower left and upper right in FIG. It is the intersection with the connecting straight line.
  • the three first elastic members (11) are arranged at the vertices of an equilateral triangle.
  • the three first elastic members (11) are made of the same material, the same area, and the same thickness. Therefore, the center of gravity of the first elastic member (11) is the position of the center of gravity of an equilateral triangle in a plan view.
  • the first compressor (10) has a cylindrical shape.
  • the center of gravity C1 of the first compressor (10) is a position approximated by the center of the circle in FIG. In FIG. 4, in a plan view, the center of gravity C1 of the first compressor (10) and the arranged center of gravity of the three first elastic members (11) supporting the first support leg (16) coincide with each other.
  • the second compressor (20) has a cylindrical shape.
  • the center of gravity C2 of the second compressor (20) is a position approximated by the center of the circle in FIG. In FIG. 4, in a plan view, the center of gravity C2 of the second compressor (20) and the center of gravity of the arrangement of the three first elastic members (11) supporting the second support leg (26) coincide with each other.
  • the position of the center of gravity of the intermediate plate (5), the first compressor (10), and the second compressor (20) is defined as the center of gravity P1.
  • the center of gravity P1 is located in the vicinity of the arrangement center of gravity Q1 of the second elastic member (12) in a plan view.
  • the center of gravity P1 is displaced from the arranged center of gravity Q1 toward the first compressor (10). doing. Therefore, the first compressor (10) is the compressor closest to the center of gravity P1.
  • the distance from the center of gravity P1 to the first compressor (10) is r1.
  • the arrangement center of gravity Q1 is located in a region centered on the center of gravity P1 and having a radius r1.
  • the center of gravity P1 may be substantially aligned with the arranged center of gravity Q1 of the second elastic member (12) in a plan view.
  • a double vibration-damping structure with a high vibration-damping effect is constructed in consideration of the position of the center of gravity while ensuring the degree of freedom in layout for arranging the first compressor (10) and the second compressor (20). be able to.
  • control unit (100) controls the first compressor (10) and the second compressor (10).
  • the operation of the compressor (20) may be controlled.
  • control unit (100) controls the rotation of the first compressor (10) and the second compressor (20) so that the rotation directions are the same and the phases are 180 ° different from each other. As a result, the centrifugal forces generated by the first compressor (10) and the second compressor (20) are canceled by each other.
  • the intermediate plate (5) is supported by the bottom member (3) via the second elastic member (12).
  • the first compressor (10) and the second compressor (20) are supported by the same intermediate plate (5) via a plurality of first elastic members (11).
  • the installation area can be made compact as compared with the case where the first compressor (10) and the second compressor (20) are separately installed separately. Further, since the total weight of the structure supported by the second elastic member (12) is increased, the anti-vibration effect is improved.
  • the weight of the second compressor (20) is smaller than the weight of the first compressor (10).
  • the vibration of the second compressor (20) can be reduced by the weight of the first compressor (10).
  • the arrangement center of gravity Q1 is located in a region whose radius is the distance r1 from the center of gravity P1 to the center of gravity of the compressor closest to the center of gravity P1 in a plan view.
  • the center of gravity P1 substantially coincides with the arranged center of gravity Q1 in a plan view.
  • the centrifugation generated in the first compressor (10) and the second compressor (20) is performed by controlling the rotation of the first compressor (10) and the second compressor (20). Let the forces cancel each other.
  • the vibrations generated by the plurality of compressors cancel each other out, so that the vibration isolation effect can be further enhanced.
  • the first compressor (10), the second compressor (20), and a plurality of refrigerant circuit components (31) are arranged on the intermediate plate (5).
  • the refrigerant circuit component (31) is a user-side heat exchanger (37) and an accumulator (38).
  • the center of gravity Q1 of the second elastic member (12) is the straight line connecting the upper left and lower right second elastic members (12) in FIG. 5, and the second elastic in the lower left and upper right in FIG. It is the intersection with the straight line connecting the members (12).
  • the position of the center of gravity of the intermediate plate (5), the first compressor (10), the second compressor (20), the heat exchanger (37) on the user side, and the accumulator (38) is the center of gravity P2.
  • the center of gravity P2 is located in the vicinity of the center of gravity Q1 where the second elastic member (12) is arranged in a plan view.
  • the center of gravity P2 is below the arrangement center of gravity Q1. It is located out of alignment. Further, since the weight of the first compressor (10) is heavier than the weight of the second compressor (20), the center of gravity P2 is located offset from the arranged center of gravity Q1 toward the first compressor (10). There is. As a result, the center of gravity P2 is positioned on the lower right side in FIG. 5 with respect to the arranged center of gravity Q1.
  • the first compressor (10) is the compressor closest to the center of gravity P2.
  • the distance from the center of gravity P2 to the first compressor (10) is r2.
  • the arrangement center of gravity Q1 is located in a region centered on the center of gravity P2 and having a radius r2.
  • the center of gravity P2 may be substantially aligned with the arranged center of gravity Q1 of the second elastic member (12) in a plan view.
  • a double vibration-damping structure with a high vibration-damping effect is constructed in consideration of the position of the center of gravity while ensuring the degree of freedom in layout for arranging the first compressor (10) and the second compressor (20). be able to.
  • the intermediate plate (5) has a refrigerant circuit other than the first compressor (10), the second compressor (20), the accumulator (38), and the heat exchanger (37) on the user side.
  • the component (31) may be arranged.
  • the refrigerant circuit component (31) includes an intermediate heat exchanger (45), a four-way switching valve (33), a check valve bridge (35), an expansion valve (36), a bypass check valve (61), and the like. include.
  • Embodiment 2 >> Hereinafter, the same parts as those in the first embodiment are designated by the same reference numerals, and only the differences will be described.
  • the intermediate plate (5) has a first intermediate plate (15) and a second intermediate plate (25).
  • the first compressor (10) is supported by the first intermediate plate (15) via a plurality of first elastic members (11).
  • the second compressor (20) is supported by the second intermediate plate (25) via a plurality of first elastic members (11).
  • the intermediate plate (5) is configured by integrally connecting the first intermediate plate (15) and the second intermediate plate (25).
  • the first intermediate plate (15) and the second intermediate plate (25) are integrally connected by a connecting member (27).
  • the connecting members (27) are arranged in pairs on the upper and lower sides with the intermediate plate (5) in between.
  • the left end of the first intermediate plate (15) and the right end of the second intermediate plate (25) are in contact with each other.
  • the upper and lower pair of connecting members (27) cover the boundary positions of the first intermediate plate (15) and the second intermediate plate (25), respectively.
  • the connecting member (27), the first intermediate plate (15), and the second intermediate plate (25) are integrally connected by brazing or welding. As a result, the first intermediate plate (15) and the second intermediate plate (25) are melted and joined, so that the joining strength of the intermediate plate (5) can be increased.
  • first intermediate plate (15) and the second intermediate plate (15) and the second intermediate plate (25) are formed.
  • the plates (25) may be integrally connected.
  • connecting member (27), the first intermediate plate (15), and the second intermediate plate (25) may be integrally connected by rivets or bolts. As a result, the work of integrally connecting the first intermediate plate (15) and the second intermediate plate (25) can be easily performed.
  • the intermediate plate (5) has a first intermediate plate (15) and a second intermediate plate (25).
  • the first compressor (10) is supported by the first intermediate plate (15) via a plurality of first elastic members (11).
  • the second compressor (20) is supported by the second intermediate plate (25) via a plurality of first elastic members (11).
  • the intermediate plate (5) is configured by integrally connecting the first intermediate plate (15) and the second intermediate plate (25).
  • the first intermediate plate (15) and the second intermediate plate (25) are integrally connected in a state where they partially overlap each other in a plan view.
  • the second intermediate plate (25) has a connecting portion (28).
  • the connecting portion (28) is formed by bending the end portion of the second intermediate plate (25) on the first intermediate plate (15) side in a stepped shape.
  • the connecting portion (28) of the second intermediate plate (25) overlaps the first intermediate plate (15) in a plan view.
  • the first intermediate plate (15) and the connecting portion (28) of the second intermediate plate (25) are integrally connected by, for example, brazing or welding. Further, the first intermediate plate (15) and the connecting portion (28) of the second intermediate plate (25) may be integrally connected by rivets or bolts.
  • the connecting portion (28) may be provided on the first intermediate plate (15) side.
  • the intermediate plate (5) has a first intermediate plate (15) and a second intermediate plate (25).
  • the first compressor (10) is supported by the first intermediate plate (15) via a plurality of first elastic members (11).
  • the second compressor (20) is supported by the second intermediate plate (25) via a plurality of first elastic members (11).
  • the intermediate plate (5) is configured by integrally connecting the first intermediate plate (15) and the second intermediate plate (25).
  • the first intermediate plate (15) and the second intermediate plate (25) are integrally connected via a third elastic member (13).
  • the second intermediate plate (25) has a connecting portion (28).
  • the connecting portion (28) is formed by bending the end portion of the second intermediate plate (25) on the first intermediate plate (15) side in a stepped shape.
  • the connecting portion (28) of the second intermediate plate (25) overlaps the first intermediate plate (15) in a plan view.
  • a third elastic member (13) is arranged between the connecting portion (28) of the second intermediate plate (25) and the first intermediate plate (15).
  • the first intermediate plate (15) and the second intermediate plate (25) are integrally connected via a third elastic member (13).
  • the third elastic member (13) is made of rubber or urethane.
  • the third elastic member (13) is adhered to the first intermediate plate (15) and the second intermediate plate (25).
  • Embodiment 5 As shown in FIGS. 9 and 10, the first compressor (10) and the second compressor (20) are arranged on the same intermediate plate (5). Here, in a plan view, the position of the center of gravity of the intermediate plate (5), the first compressor (10), and the second compressor (20) is defined as the center of gravity P1.
  • a fourth elastic member (14) is arranged between the intermediate plate (5) and the bottom member (3) at a position overlapping the center of gravity P1 in a plan view.
  • the fourth elastic member (14) is made of rubber or urethane.
  • the fourth elastic member (14) may be arranged at a position overlapping the center of gravity P2 in a plan view.
  • Embodiment 6 As shown in FIG. 11, the first compressor (10), the second compressor (20), and the third compressor (70) are arranged on the intermediate plate (5).
  • the intermediate plate (5) is configured by integrally connecting the first intermediate plate (15), the second intermediate plate (25), and the third intermediate plate (75).
  • the second intermediate plate (25) is arranged in the lower left corner of the first intermediate plate (15).
  • the third intermediate plate (75) is arranged in the upper left corner of the first intermediate plate (15).
  • the second intermediate plate (25) and the third intermediate plate (75) are integrally connected in a state in which a part of the second intermediate plate (25) and the third intermediate plate (75) are overlapped with the first intermediate plate (15) in a plan view.
  • the second intermediate plate (25) has a connecting portion (28).
  • the connecting portion (28) is formed by bending the end portion of the second intermediate plate (25) on the first intermediate plate (15) side in a stepped shape.
  • the connecting portion (28) of the second intermediate plate (25) overlaps the first intermediate plate (15) in a plan view.
  • the third intermediate plate (75) has a connecting portion (78).
  • the connecting portion (78) is formed by bending the end portion of the third intermediate plate (75) on the first intermediate plate (15) side in a stepped shape.
  • the connecting portion (78) of the third intermediate plate (75) overlaps the first intermediate plate (15) in a plan view.
  • the first intermediate plate (15) and the connecting portion (28) of the second intermediate plate (25) and the connecting portion (78) of the third intermediate plate (75) are integrally connected by, for example, brazing or welding. NS. Further, the first intermediate plate (15) and the connecting portion (28) of the second intermediate plate (25) and the connecting portion (78) of the third intermediate plate (75) are integrally connected by rivets or bolts. You may.
  • the first compressor (10) is supported by the first intermediate plate (15) via a plurality of first elastic members (11).
  • the first compressor (10) has a first support leg (16).
  • Three first elastic members (11) are arranged between the first support leg (16) and the first intermediate plate (15).
  • a plurality of refrigerant circuit components (31) are arranged on the first intermediate plate (15).
  • the refrigerant circuit component (31) is a user-side heat exchanger (37) and an accumulator (38).
  • the second compressor (20) is supported by the second intermediate plate (25) via a plurality of first elastic members (11).
  • the second compressor (20) has a second support leg (26).
  • Three first elastic members (11) are arranged between the second support leg (26) and the second intermediate plate (25).
  • the third compressor (70) is supported by the third intermediate plate (75) via a plurality of first elastic members (11).
  • the third compressor (70) has a third support leg (76).
  • Three first elastic members (11) are arranged between the third support leg (76) and the third intermediate plate (75).
  • a plurality of second elastic members (12) are arranged between the first intermediate plate (15) and the bottom member (3).
  • the second elastic member (12) is arranged at the four corners of the first intermediate plate (15).
  • a plurality of second elastic members (12) are arranged between the second intermediate plate (25) and the bottom member (3).
  • the second elastic member (12) is arranged in the upper left corner and the lower left corner of the second intermediate plate (25).
  • a plurality of second elastic members (12) are arranged between the third intermediate plate (75) and the bottom member (3).
  • the second elastic member (12) is arranged in the upper left corner and the lower left corner of the third intermediate plate (75).
  • the third compressor (70) can be added with the minimum design change of adding the third intermediate plate (75) and integrally connecting it to the first intermediate plate (15).
  • Embodiment 7 As shown in FIG. 12, the first compressor (10), the second compressor (20), and the third compressor (70) are arranged on the intermediate plate (5).
  • the intermediate plate (5) has a first intermediate plate (15) and a second intermediate plate (25).
  • the second intermediate plate (25) has a connecting portion (28).
  • the connecting portion (28) is formed by bending the end portion of the second intermediate plate (25) on the first intermediate plate (15) side in a stepped shape.
  • the connecting portion (28) of the second intermediate plate (25) overlaps the first intermediate plate (15) in a plan view.
  • the intermediate plate (5) is configured by integrally connecting the first intermediate plate (15) and the connecting portion (28) of the second intermediate plate (25).
  • the first compressor (10) is supported by the first intermediate plate (15) via a plurality of first elastic members (11).
  • a plurality of refrigerant circuit components (31) are arranged on the first intermediate plate (15).
  • the refrigerant circuit component (31) is a user-side heat exchanger (37) and an accumulator (38).
  • the second compressor (20) is supported by the second intermediate plate (25) via a plurality of first elastic members (11).
  • the third compressor (70) is supported by the second intermediate plate (25) via a plurality of first elastic members (11).
  • a plurality of second elastic members (12) are arranged between the first intermediate plate (15) and the bottom member (3).
  • the second elastic member (12) is arranged at the four corners of the first intermediate plate (15).
  • a plurality of second elastic members (12) are arranged between the second intermediate plate (25) and the bottom member (3).
  • the second elastic member (12) is arranged in the upper left corner and the lower left corner of the second intermediate plate (25).
  • the third compressor (70) can be added with the minimum design change to support the second compressor (20) and the third compressor (70) on the second intermediate plate (25).
  • Embodiment 8 As shown in FIG. 13, the first compressor (10), the second compressor (20), and the third compressor (70) are arranged on the intermediate plate (5).
  • the intermediate plate (5) has a first intermediate plate (15), a second intermediate plate (25), and a third intermediate plate (75).
  • the second intermediate plate (25) has a connecting portion (28).
  • the connecting portion (28) is formed by bending the end portion of the second intermediate plate (25) on the first intermediate plate (15) side in a stepped shape.
  • the connecting portion (28) of the second intermediate plate (25) overlaps the first intermediate plate (15) in a plan view.
  • the third intermediate plate (75) has a connecting portion (78).
  • the connecting portion (78) is formed by bending the end portion of the third intermediate plate (75) on the second intermediate plate (25) side in a stepped shape.
  • the connecting portion (78) of the third intermediate plate (75) overlaps the second intermediate plate (25) in a plan view.
  • the connecting portion (28) of the second intermediate plate (25) is integrally connected to the first intermediate plate (15).
  • the connecting portion (78) of the third intermediate plate (75) is integrally connected to the second intermediate plate (25).
  • the intermediate plate (5) is configured by integrally connecting the first intermediate plate (15), the second intermediate plate (25), and the third intermediate plate (75).
  • the first compressor (10) is supported by the first intermediate plate (15) via a plurality of first elastic members (11).
  • a plurality of refrigerant circuit components (31) are arranged on the first intermediate plate (15).
  • the refrigerant circuit component (31) is a user-side heat exchanger (37) and an accumulator (38).
  • the second compressor (20) is supported by the second intermediate plate (25) via a plurality of first elastic members (11).
  • the third compressor (70) is supported by the second intermediate plate (25) via a plurality of first elastic members (11).
  • a plurality of second elastic members (12) are arranged between the first intermediate plate (15) and the bottom member (3).
  • the second elastic member (12) is arranged at the four corners of the first intermediate plate (15).
  • a plurality of second elastic members (12) are arranged between the second intermediate plate (25) and the bottom member (3).
  • the second elastic member (12) is arranged in the upper left corner and the lower left corner of the second intermediate plate (25).
  • a plurality of second elastic members (12) are arranged between the third intermediate plate (75) and the bottom member (3).
  • the second elastic member (12) is arranged in the upper left corner and the lower left corner of the third intermediate plate (75).
  • the third compressor (70) can be added with the minimum design change of adding the third intermediate plate (75) and connecting it integrally with the other intermediate plates.
  • the embodiment may have the following configuration.
  • the present disclosure is useful for refrigeration cycle devices.
  • Refrigeration cycle device 2 Housing 3 Bottom member 5 Intermediate plate 10 1st compressor 11 1st elastic member 12 2nd elastic member 13 3rd elastic member 14 4th elastic member 15 1st intermediate plate 20 2nd compressor 25th 2 Intermediate plate 31 Refrigerant circuit component 70 Third compressor 75 Third intermediate plate 100 Control unit P1 Center of gravity P2 Center of gravity Q1 Placement center of gravity

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Compressor (AREA)
  • Air Conditioning Control Device (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
  • Separation By Low-Temperature Treatments (AREA)

Abstract

Selon l'invention, une plaque intermédiaire (5) est supportée par un élément inférieur (3) avec une pluralité de deuxièmes éléments élastiques (12) entre eux. Un premier compresseur (10) est supporté par la plaque intermédiaire (5) avec une pluralité de premiers éléments élastiques (11) entre eux. Un deuxième compresseur (20) est supporté par la même plaque intermédiaire (5) avec la pluralité de premiers éléments élastiques (11) entre eux.
PCT/JP2021/010684 2020-03-31 2021-03-16 Dispositif à cycle de réfrigération WO2021200129A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CN202180020724.0A CN115349068A (zh) 2020-03-31 2021-03-16 制冷循环装置
EP21779502.0A EP4113019A4 (fr) 2020-03-31 2021-03-16 Dispositif à cycle de réfrigération
AU2021249161A AU2021249161B2 (en) 2020-03-31 2021-03-16 Refrigeration cycle device
CA3171967A CA3171967A1 (fr) 2020-03-31 2021-03-16 Dispositif a cycle de refrigeration
US17/956,477 US20230024725A1 (en) 2020-03-31 2022-09-29 Refrigeration cycle apparatus

Applications Claiming Priority (2)

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JP2020-063763 2020-03-31
JP2020063763A JP7044983B2 (ja) 2020-03-31 2020-03-31 冷凍サイクル装置

Related Child Applications (1)

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US17/956,477 Continuation US20230024725A1 (en) 2020-03-31 2022-09-29 Refrigeration cycle apparatus

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WO2021200129A1 true WO2021200129A1 (fr) 2021-10-07

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EP (1) EP4113019A4 (fr)
JP (1) JP7044983B2 (fr)
CN (1) CN115349068A (fr)
AU (1) AU2021249161B2 (fr)
CA (1) CA3171967A1 (fr)
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023191093A1 (fr) * 2022-03-31 2023-10-05 ダイキン工業株式会社 Dispositif à cycle de réfrigération

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JPS57179692A (en) * 1981-04-09 1982-11-05 Commissariat Energie Atomique Absorbing rod
JPH033636A (ja) * 1989-05-30 1991-01-09 Toshiba Corp 固定子鉄心の製造方法
JP2000283600A (ja) * 1999-03-30 2000-10-13 Toshiba Corp 空気調和装置
JP2008039260A (ja) * 2006-08-03 2008-02-21 Sharp Corp 空気調和機用ユニット
JP2010243033A (ja) 2009-04-03 2010-10-28 Mitsubishi Electric Corp ヒートポンプ室外機
JP2017198228A (ja) * 2016-04-25 2017-11-02 株式会社大林組 チューンドマスダンパー

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JPS6034865Y2 (ja) * 1981-05-11 1985-10-17 株式会社東芝 空気調和機の室外ユニツトにおける圧縮機の支持装置
JPH081386Y2 (ja) * 1989-05-29 1996-01-17 三菱電機株式会社 空気調和機
JPH0544963A (ja) * 1991-01-17 1993-02-23 Mitsubishi Electric Corp 空気調和機
KR20090048793A (ko) * 2007-11-12 2009-05-15 삼성전자주식회사 공기조화기
JP6677267B2 (ja) * 2018-03-30 2020-04-08 ダイキン工業株式会社 冷凍サイクル装置

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Publication number Priority date Publication date Assignee Title
JPS57179692A (en) * 1981-04-09 1982-11-05 Commissariat Energie Atomique Absorbing rod
JPH033636A (ja) * 1989-05-30 1991-01-09 Toshiba Corp 固定子鉄心の製造方法
JP2000283600A (ja) * 1999-03-30 2000-10-13 Toshiba Corp 空気調和装置
JP2008039260A (ja) * 2006-08-03 2008-02-21 Sharp Corp 空気調和機用ユニット
JP2010243033A (ja) 2009-04-03 2010-10-28 Mitsubishi Electric Corp ヒートポンプ室外機
JP2017198228A (ja) * 2016-04-25 2017-11-02 株式会社大林組 チューンドマスダンパー

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Publication number Priority date Publication date Assignee Title
WO2023191093A1 (fr) * 2022-03-31 2023-10-05 ダイキン工業株式会社 Dispositif à cycle de réfrigération

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EP4113019A1 (fr) 2023-01-04
JP7044983B2 (ja) 2022-03-31
CN115349068A (zh) 2022-11-15
US20230024725A1 (en) 2023-01-26
EP4113019A4 (fr) 2023-08-09
AU2021249161B2 (en) 2023-11-09
CA3171967A1 (fr) 2021-10-07
AU2021249161A1 (en) 2022-10-13
JP2021162218A (ja) 2021-10-11

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