WO2020004573A1 - Dispositif de réglage de température d'appareil - Google Patents

Dispositif de réglage de température d'appareil Download PDF

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Publication number
WO2020004573A1
WO2020004573A1 PCT/JP2019/025671 JP2019025671W WO2020004573A1 WO 2020004573 A1 WO2020004573 A1 WO 2020004573A1 JP 2019025671 W JP2019025671 W JP 2019025671W WO 2020004573 A1 WO2020004573 A1 WO 2020004573A1
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WIPO (PCT)
Prior art keywords
condenser
heat
heat medium
compressor
target device
Prior art date
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PCT/JP2019/025671
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English (en)
Japanese (ja)
Inventor
功嗣 三浦
康光 大見
義則　毅
竹内　雅之
Original Assignee
株式会社デンソー
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Priority claimed from JP2019103924A external-priority patent/JP2020008270A/ja
Application filed by 株式会社デンソー filed Critical 株式会社デンソー
Publication of WO2020004573A1 publication Critical patent/WO2020004573A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • 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
    • 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
    • F25B39/00—Evaporators; Condensers
    • F25B39/02—Evaporators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
    • H01M10/647—Prismatic or flat cells, e.g. pouch cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6569—Fluids undergoing a liquid-gas phase change or transition, e.g. evaporation or condensation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present disclosure relates to a device temperature controller.
  • Patent Document 1 there is a cooling device described in Patent Document 1.
  • This device uses two systems, a mechanical compression circuit that operates a compressor that circulates refrigerant and circulates a working fluid, and a thermosiphon that cools equipment to be cooled by circulating refrigerant naturally. It is configured as a secondary loop refrigeration circuit that exchanges heat via an exchanger.
  • the device described in Patent Document 1 is applied to a vehicle-mounted cooling device that cools a cooling target device mounted on a vehicle.
  • the following problem occurs.
  • the operation of the compressor is stopped in order to stop the cooling of the device to be cooled by the thermosiphon.
  • the refrigerant in the condenser flows into the heat exchanger that exchanges heat between the two circuits through the expansion valve.
  • the condenser is cooled by outside air. At this time, the temperature of the condenser falls more rapidly than the heat exchanger which exchanges heat between the compressor and the two circuits.
  • the present disclosure aims to suppress cooling of a device to be cooled by a thermosiphon when the operation of a compressor is stopped.
  • an apparatus temperature controller includes a thermosiphon having a first circulation circuit that circulates a first heat medium, and a target apparatus is provided by a phase change between a liquid phase and a gas phase of the first heat medium.
  • a device for controlling the temperature of the device a second circulation circuit for circulating a second heat medium, a compressor for compressing and discharging the second heat medium inside the second circulation circuit, and A radiating heat exchanger for exchanging heat with the discharged second heat medium and air to radiate heat of the second heat medium, and an expansion valve for decompressing the second heat medium flowing out of the radiating heat exchanger.
  • thermosiphon is provided in the first circulation circuit, and is configured to be capable of exchanging heat between the target device and the first heat medium such that the first heat medium evaporates when the target device is cooled.
  • Heat exchanger, second heat medium depressurized by expansion valve and heat exchanger for equipment And a condenser for exchanging heat with the evaporated first heat medium to condense the first heat medium, wherein the condenser has an inlet for flowing in the second heat medium and a flow outlet for flowing out the second heat medium.
  • An outlet wherein the heat-dissipating heat exchanger has an inlet for inflow of the second heat medium, and an outlet for outflow of the second heat medium, and the compressor sucks the second heat medium.
  • a discharge port for discharging the second heat medium and the second circulation circuit is connected to a first connection pipe for connecting between an outlet of the heat radiating heat exchanger and an inlet of the condenser.
  • a second connection pipe for connecting between the outlet of the condenser and the inlet of the heat exchanger for heat dissipation, wherein when the compressor stops operating, the heat exchanger for heat dissipation is connected to the condenser.
  • the second heat medium is configured to be prevented from flowing into the heat medium due to gravity.
  • the liquid-phase second heat medium condensed in the heat-radiating heat exchanger is prevented from flowing into the condenser by gravity due to gravity. it can. Therefore, the cooling of the target device by the thermosiphon 10 when the operation of the compressor is stopped can be suppressed.
  • an apparatus temperature controller includes a thermosiphon having a first circulation circuit that circulates a first heat medium, and the thermosiphon has a liquid phase and a gaseous phase change of the first heat medium.
  • a device temperature control device for adjusting a temperature of a target device, comprising: a second circulation circuit for circulating a second heat medium; a compressor for compressing and discharging the second heat medium inside the second circulation circuit; A heat exchanger for radiating heat by exchanging heat with the second heat medium discharged from the machine to radiate heat of the second heat medium; and an expansion valve for decompressing the second heat medium flowing out of the heat exchanger for heat radiation.
  • thermosiphon is disposed in the first circulation circuit, and the target device and the first heat medium are configured to be capable of exchanging heat so that the first heat medium evaporates when the target device is cooled.
  • Equipment heat exchanger heat exchange for equipment with second heat medium depressurized by expansion valve
  • a condenser for exchanging heat with the first heat medium evaporated by the first heat medium to condense the first heat medium.
  • the condenser includes a second circuit in which the second heat medium flows, and a second circuit in the secondary circuit. Discharge of the second heat medium flowing into the secondary circuit from the inlet of the secondary circuit, having an inlet for flowing the heat medium and an outlet for discharging the second heat medium from the secondary circuit.
  • Has an emission suppression structure that suppresses the occurrence of air pollution.
  • the heat exchanger for radiating heat is used.
  • the second heat medium in the liquid phase condensed by the flow can be prevented from flowing into the condenser by gravity. Therefore, it is possible to suppress the cooling of the cooling target device by the thermosiphon 10 when the operation of the compressor is stopped.
  • FIG. 37 is a diagram showing a configuration of a secondary battery according to a twenty-ninth embodiment.
  • FIG. 37 is a diagram showing a configuration of a secondary battery according to a thirtieth embodiment.
  • FIG. 37 is a diagram showing a configuration of a secondary battery according to a thirty-first embodiment. It is a flowchart of ECU of the 32nd embodiment. It is a flowchart of ECU of the 33rd embodiment. It is a flowchart of ECU of the 34th embodiment.
  • FIGS. 1 An apparatus temperature controller according to a first embodiment will be described with reference to FIGS. 1 is mounted on a vehicle such as an electric vehicle or a hybrid vehicle. Then, in the present embodiment, the device temperature controller cools the secondary batteries 12a and 12b shown in FIG. That is, the objects to be cooled by the device temperature controller of the present embodiment are the secondary batteries 12a and 12b mounted on the electric vehicle.
  • the arrow DR1 indicates the up-down direction. In the arrow DR1, the up arrow indicates the upper side in the up-down direction of the vehicle, and the down arrow indicates the lower side in the up-down direction of the vehicle.
  • the electric power stored in the power storage device including the secondary batteries 12a and 12b as components is supplied to an electric motor via an inverter circuit or the like, whereby the vehicle runs.
  • the secondary batteries 12a and 12b generate heat when outputting electric power to the electric motor via the inverter.
  • a cooling device for maintaining the secondary batteries 12a and 12b at a predetermined temperature or lower is required.
  • the battery temperature rises not only while the vehicle is running but also during parking in summer.
  • the power storage device is often arranged under the floor of the vehicle, under a trunk room, or the like, and although the amount of heat given to the secondary batteries 12a and 12b per unit time is small, the battery temperature gradually rises by leaving the battery for a long time. .
  • the life of the secondary batteries 12a, 12b is greatly reduced. Therefore, the battery temperature is maintained at a low temperature by cooling the secondary batteries 12a, 12b even while the vehicle is left. It is desired.
  • the secondary batteries 12a and 12b of the present embodiment are configured as an assembled battery in which a plurality of battery cells 13 are stacked in the traveling direction of the vehicle. The deterioration is biased, and the performance of the power storage device is reduced.
  • the input / output characteristics of the power storage device are determined according to the characteristics of the battery cell 13 that has deteriorated the most. Therefore, in order for the power storage device to exhibit desired performance over a long period of time, it is important to equalize the temperature to reduce temperature variations among the plurality of battery cells 13.
  • the secondary batteries 12a and 12b are cooled by the sensible heat of the air, so that the temperature difference between the upstream and downstream of the air flow becomes large, and the temperature variation between the battery cells 13 cannot be sufficiently suppressed. .
  • air cooling using cold air generated in a refrigeration cycle, or water cooling using cold water has a high cooling capacity, but the heat exchange part with the battery cell 13 is sensible heat cooling in either air cooling or water cooling. Temperature variation between the battery cells 13 cannot be sufficiently suppressed.
  • thermosiphon system in which the refrigerant for thermosiphon is cooled using a refrigeration cycle and the secondary batteries 12a and 12b are cooled by natural circulation of the refrigerant for thermosiphon. Has been adopted.
  • the device temperature controller of the present embodiment includes a thermosiphon 10 and a refrigeration cycle 20, as shown in FIG.
  • the thermosiphon 10 includes a cooler 14, a condenser 16, and a first circulation circuit 100 that circulates a thermosiphon refrigerant as a first heat medium.
  • the temperature of the secondary batteries 12a and 12b as target devices is adjusted by the phase change.
  • the first circulation circuit 100 has an outgoing pipe 101 and a return pipe 102.
  • the condenser 16 has a primary side circuit 16a and a secondary side circuit 16b. As shown in FIG. 3, the condenser 16 has a primary circuit 16a having a condenser inlet 161 through which a thermosiphon refrigerant flows into the primary circuit 16a and a condenser which discharges a thermosiphon refrigerant from the primary circuit 16a. An outlet 162 is formed.
  • the secondary circuit 16b of the condenser 16 has an inlet 163 through which the refrigerant for the refrigeration cycle flows into the secondary circuit 16b, and an outlet 164 through which the refrigerant for the refrigeration cycle flows out of the secondary circuit 16b. Have been.
  • the primary circuit 16a of the condenser 16, the outgoing pipe 101, the cooler 14, and the return pipe 102 are connected in a ring shape to form a thermosiphon circuit in which a refrigerant for thermosiphon circulates.
  • the first circulation circuit 100 of the present embodiment is filled with a thermosiphon refrigerant.
  • the refrigerant for the thermosiphon circulates through the first circulation circuit 100 by natural circulation, and the device temperature controller adjusts the temperature of the secondary batteries 12a and 12b by a phase change between the liquid phase and the gas phase of the refrigerant for the thermosiphon. I do.
  • the secondary batteries 12a and 12b are cooled by the phase change of the refrigerant for the thermosiphon.
  • the refrigerant charged in the first circulation circuit 100 is, for example, a chlorofluorocarbon-based refrigerant such as HFO-1234yf or HFC-134a.
  • a chlorofluorocarbon-based refrigerant such as HFO-1234yf or HFC-134a
  • various working fluids other than the chlorofluorocarbon-based refrigerant such as water and ammonia may be used as the refrigerant.
  • the gaseous refrigerant flows from the outlet 142 through the return pipe 102 to the condenser.
  • the refrigerant flows into the primary circuit 16a of the condenser 16 from the 16 condenser inlets 161.
  • thermosyphon refrigerant flowing into the primary circuit 16a is condensed by heat exchange with the refrigeration cycle refrigerant inside the secondary circuit 16b of the condenser 16 to become a liquid-phase refrigerant. Then, the air flows into the main body 143 of the cooler 14 from the inlet 141 formed in the main body 143 of the cooler 14 from the condenser outlet 162 of the primary circuit 16 a of the condenser 16 through the outward pipe 101.
  • a liquid-phase refrigerant having a relatively high specific gravity is stored below the main body 143 of the cooler 14, and a gas-phase refrigerant having a relatively low specific gravity is stored above the main body 143 of the cooler 14. Therefore, the gas-phase refrigerant in the main body 143 is exclusively discharged from the outlet 142 out of the inlet 141 and the outlet 142.
  • the cooler 14 is disposed between the secondary batteries 12a and 12b.
  • the cooler 14 corresponds to an equipment heat exchanger.
  • the cooler 14 cools the secondary batteries 12a and 12b by exchanging heat between the heat of the secondary batteries 12a and 12b and the heat of the thermosiphon refrigerant.
  • the cooler 14 has a main body 143 made of, for example, a metal having high thermal conductivity.
  • the main body 143 of the cooler 14 has an inlet 141 through which the thermosyphonic refrigerant flows and an outlet 142 through which the thermosiphonic refrigerant flows out.
  • the outlet 142 is arranged above the inlet 141 in the up-down direction.
  • the outward pipe 101 connects between a condenser outlet 162 formed in the primary circuit 16 a of the condenser 16 and an inflow port 141 formed in the main body 143 of the cooler 14.
  • the return pipe 102 connects between an outlet 142 formed in the main body 143 of the cooler 14 and a condenser inlet 161 formed in the primary circuit 16 a of the condenser 16.
  • the refrigeration cycle 20 constitutes a vapor compression refrigeration cycle including a circulation circuit 200 in which a refrigeration cycle refrigerant as a second heat medium circulates, a compressor 23, a condenser 21, and an expansion valve 22.
  • the refrigeration cycle 20 includes a second circulation circuit 200 that circulates the refrigerant for the refrigeration cycle, and a compressor 23 that compresses and discharges the refrigerant for the refrigeration cycle in the second circulation circuit 200.
  • the refrigeration cycle 20 includes a condenser 21 for exchanging heat between the refrigeration cycle refrigerant discharged from the compressor 23 and the outside air to radiate the refrigeration cycle refrigerant discharged from the compressor 23.
  • an expansion valve 22 is provided for reducing the pressure of the refrigerant for the refrigeration cycle flowing out of the condenser 21 and flowing the refrigerant into the secondary circuit 16 b of the condenser 16.
  • the condenser 21 corresponds to a radiating heat exchanger that exchanges heat between the refrigeration cycle refrigerant discharged from the compressor 23 and air and radiates heat of the refrigeration cycle refrigerant.
  • the circulation circuit 200 connects the compressor 23, the condenser 21, the expansion valve 22, and the secondary circuit 16b of the condenser 16 in a ring shape.
  • the circulation circuit 200 has a first connection pipe 201 that supplies the refrigerant for the refrigeration cycle flowing out of the condenser 21 to the secondary circuit 16 b of the condenser 16. Further, a second connection pipe 202 for supplying the refrigerant for the refrigeration cycle flowing out of the secondary circuit 16 b of the condenser 16 to the condenser 21 is provided.
  • the secondary circuit 16b of the condenser 16 acts as an evaporator of the refrigeration cycle 20, and cools the thermosiphon refrigerant in the first circulation circuit 100.
  • the condenser 16 of the present embodiment is located above the cooler 14 in the vertical direction even when the vehicle traveling direction or the vehicle width direction is inclined with respect to the horizontal direction. It is installed to be located.
  • the condenser 16 is housed in a front storage room or a trunk room.
  • the front storage room is a room that is disposed on the front side in the vehicle traveling direction with respect to the vehicle interior of the vehicle and houses a traveling engine and a traveling electric motor.
  • the trunk room is a storage room that is disposed rearward in the vehicle traveling direction with respect to the vehicle interior of the vehicle and stores luggage and the like.
  • a return pipe 102 is connected to the upper part of the condenser 16 in the vertical direction. Specifically, the return pipe 102 is connected to the condenser 16 at an upper side in the vertical direction than the outward pipe 101.
  • the device temperature control device of the present embodiment stops the operation of the compressor 23 of the refrigeration cycle 20, thereby suppressing the cooling of the device to be cooled by the thermosiphon 10.
  • the first heat medium of the first circulation circuit 100 has substantially the same temperature as the secondary batteries 12a and 12b. Therefore, the temperature of the thermosiphon refrigerant in the primary circuit 16a in the condenser 16 is also substantially the same as that of the target device.
  • the condenser 21 of the second circulation circuit 200 is cooled to the outside air.
  • the condenser 16 that has received heat from the thermosiphon refrigerant in the first circulation circuit 100 becomes higher than the outside air temperature.
  • the condenser 21 is cooled to the outside air temperature. Therefore, condensation occurs in the condenser 21 with the refrigerant for the refrigeration cycle.
  • the outside air temperature decreases with respect to daytime, such as in the evening or at night, or when the temperature of the secondary batteries 12a, 12b rises due to self-heating of the secondary batteries 12a, 12b during winter driving. Further, when the battery temperature is higher than the outside air temperature, the above-described event occurs.
  • the flow of the refrigeration cycle refrigerant from the condenser 21 to the secondary circuit 16b of the condenser 16 is suppressed. It is configured as follows.
  • the secondary circuit 16b of the condenser 16 has an inlet 163 through which the refrigerant for the refrigeration cycle flows.
  • the second circulation circuit 200 has a first connection pipe 201 that supplies the refrigerant for the refrigeration cycle flowing out of the condenser 21 to the inflow port 163 of the secondary circuit 16 b of the condenser 16.
  • a part of the first connection pipe 201 is disposed below the inlet 163 of the secondary circuit 16b of the condenser 16 in the vertical direction.
  • the refrigerant for the refrigeration cycle flowing out of the condenser 21 accumulates in the first connection pipe 201. Therefore, when the operation of the compressor 23 of the refrigeration cycle 20 is stopped, the refrigerant flows from the condenser 21 to the secondary circuit 16b of the condenser 16. Of the refrigeration cycle refrigerant is suppressed.
  • the condenser 16 of the present embodiment includes a secondary circuit 16b through which the refrigeration cycle refrigerant flows, an inflow port 163 for allowing the refrigeration cycle refrigerant to flow into the secondary circuit 16b, and a secondary side of the condenser 16 And an outlet 164 through which the refrigerant for the refrigeration cycle flows out of the circuit 16b. Then, when the operation of the compressor 23 of the refrigeration cycle 20 is stopped, the discharge of the refrigeration cycle refrigerant flowing into the secondary circuit 16b from the inlet 163 of the secondary circuit 16b of the condenser 16 is suppressed. Has an emission control structure.
  • the inside of the secondary side circuit 16b of the condenser 16 exchanges heat with the refrigerant of the thermosiphon 10 while the refrigerant flowing from the inlet 163 of the condenser 16 flows upward once, and then makes a U-turn. It flows down. Further, the heat is exchanged again with the refrigerant of the thermosiphon 10, and the flow is discharged from the outlet 164.
  • the flow path configuration having the U-turn portion functions as a gas storage portion X for storing a gas-phase refrigeration cycle refrigerant vertically above the inlet 163 and the outlet 164 of the condenser 16. .
  • the direction of the refrigeration cycle refrigerant flowing from the inlet 163 of the secondary circuit 16b is changed inside the secondary circuit 16b of the condenser 16.
  • a turn portion 165 to be formed is formed.
  • the inside of the secondary circuit 16b is filled with the evaporated refrigerant gas for the refrigeration cycle.
  • the density of the gas refrigerant is lower than the density of the liquid refrigerant, it is difficult for the liquid refrigerant for the refrigeration cycle to flow.
  • the device temperature controller of the present embodiment includes the thermosiphon 10 having the first circulation circuit 100 for circulating the first heat medium, and the second circulation circuit 200 for circulating the second heat medium. Further, the compressor 23 compresses and discharges the second heat medium inside the second circulation circuit 200, and exchanges heat between the second heat medium discharged from the compressor 23 and air to reduce the heat of the second heat medium. And a condenser 21 for radiating heat. Further, it has an expansion valve 22 for reducing the pressure of the second heat medium flowing out of the condenser 21.
  • thermosiphon 10 is arranged in the first circulation circuit 100, and is configured such that the target device and the first heat medium can exchange heat so that the first heat medium evaporates when the batteries 12a and 12b as the target devices are cooled.
  • the cooler 14 is provided.
  • the condenser 16 has a condenser 16 for exchanging heat between the second heat medium depressurized by the expansion valve 22 and the first heat medium evaporated by the cooler 14 to condense the first heat medium.
  • the condenser 16 has an inlet 163 for inflow of the second heat medium and an outlet 164 for outflow of the second heat medium
  • the condenser 21 has an inlet 211 for inflow of the second heat medium.
  • an outlet 212 for flowing out the second heat medium.
  • the compressor 23 has a suction port 231 for sucking the second heat medium, and a discharge port 232 for discharging the second heat medium.
  • the second circulation circuit 200 includes a first connection pipe 201 that connects between the outlet 212 of the condenser 21 and the inlet 163 of the condenser 16, an outlet 164 of the condenser 16, and an inlet 211 of the condenser 21. And a second connection pipe 202 that connects between the two.
  • the first heat medium of the first circulation circuit has substantially the same temperature as the target device.
  • the condenser 16 becomes higher than the temperature of the condenser 21 by receiving heat from the first heat medium in the primary side circuit 16a. Therefore, since a temperature difference occurs between the condenser 21 and the condenser 16, the second heat medium is easily condensed in the condenser 21.
  • the device temperature controller of the present embodiment is configured such that the station refrigerant of the second heat medium condensed by the condenser 21 does not flow into the condenser 16 due to the influence of gravity. Therefore, no heat exchange occurs in the condenser 16. Therefore, the cooling of the device to be cooled by the thermosiphon when the operation of the compressor 23 is stopped can be suppressed.
  • the device temperature control apparatus of the present embodiment includes the thermosiphon 10 having the first circulation circuit 100 that circulates the first heat medium, and the phase change between the liquid phase and the gas phase of the first heat medium. To adjust the temperature of the batteries 12a and 12b as target devices.
  • the device temperature control device further includes a second circulation circuit 200 that circulates the second heat medium, and a compressor 23 that compresses and discharges the second heat medium inside the second circulation circuit 200.
  • a condenser 21 for exchanging heat with the second heat medium discharged from the compressor 23 to radiate heat of the second heat medium; an expansion valve 22 for reducing the pressure of the second heat medium flowing out of the condenser 21; It has.
  • thermosiphon 10 is arranged in the first circulation circuit 100, and is configured such that the target device and the first heat medium can exchange heat so that the first heat medium evaporates when the batteries 12a and 12b as the target devices are cooled.
  • the cooler 14 is provided.
  • the condenser 16 has a condenser 16 for exchanging heat between the second heat medium depressurized by the expansion valve 22 and the first heat medium evaporated by the cooler 14 to condense the first heat medium.
  • the condenser 16 has an inlet 163 for inflow of the second heat medium and an outlet 164 for outflow of the second heat medium
  • the condenser 21 has an inlet 211 for inflow of the second heat medium.
  • an outlet 212 for flowing out the second heat medium.
  • the compressor 23 has a suction port 231 for sucking the second heat medium, and a discharge port 232 for discharging the second heat medium.
  • the second circulation circuit 200 includes a first connection pipe 201 that connects between the outlet 212 of the condenser 21 and the inlet 163 of the condenser 16, an outlet 164 of the condenser 16, and an inlet 211 of the condenser 21. And a second connection pipe 202 that connects between the two.
  • the compressor 23 stops operating, when the compressor 23 stops operating, the liquid-phase second heat medium condensed by the condenser 21 as a heat-radiating heat exchanger is discharged by the condenser due to gravity. Can be suppressed from flowing in. Further, the cooling of the cooling target device by the thermosiphon when the operation of the compressor 23 is stopped can be suppressed.
  • a part of the first connection pipe 201 is disposed below the inlet 163 of the condenser 16 in the vertical direction.
  • the refrigerant for the refrigeration cycle which is condensed in the condenser 21 and flows out, accumulates in the first connection pipe 201. Therefore, the inflow of the refrigerant for the refrigeration cycle from the condenser 21 to the secondary circuit 16b of the condenser 16 due to gravity can be suppressed, and the operation of the cooling target device by the thermosiphon 10 when the operation of the compressor 23 is stopped. Cooling can be suppressed.
  • a part of the second connection pipe 202 is disposed above the inlet 211 of the condenser 21 in the vertical direction.
  • the refrigerant for the refrigeration cycle that has condensed in the condenser 21 and has flowed out is blocked by the second connection pipe 202. Therefore, it is also possible to prevent the refrigerant for the refrigeration cycle from flowing from the condenser 21 to the secondary circuit 16b of the condenser 16 through the second connection pipe 202.
  • the condenser 16 has the secondary circuit 16b through which the refrigerant for the refrigeration cycle flows. And it has the discharge
  • thermosiphon 10 when the compressor stops operating, it is possible to prevent the liquid-phase second heat medium condensed in the condenser 21 serving as a heat-radiating heat exchanger from flowing into the condenser 16 due to gravity. . Therefore, cooling of the cooling target device by the thermosiphon 10 can be suppressed.
  • refrigerant flows into the inside of the secondary circuit 16b from an inlet 163 formed in the secondary circuit 16b, flows once upward, makes a U-turn, flows downward, and flows out of the outlet 164. It has a channel structure that flows to When the flow path configuration is at the stop of the compression section 23, the refrigerant for the gas-phase refrigeration cycle is stored vertically above the inlet 163 formed in the secondary circuit 16b and the outlet 164 formed in the secondary circuit 16b. It functions as a gas reservoir X.
  • the refrigerant for the refrigeration cycle When the operation of the compressor is stopped, the refrigerant for the refrigeration cycle accumulates in the gas reservoir X, so that the refrigerant for the refrigeration cycle flowing into the secondary circuit 16b from the inlet 163 of the secondary circuit 16b is discharged.
  • the suppression makes it difficult for the liquid refrigerant for the refrigeration cycle to flow.
  • the cooler 14 is mounted on the vehicle, and the condenser 21 exchanges heat between the refrigeration cycle refrigerant and the outside air of the vehicle.
  • the condenser 21 may be configured as a heat-radiating heat exchanger that exchanges heat between the refrigerant for the refrigeration cycle and the outside air of the vehicle.
  • the device temperature controller of the present embodiment is different from the device temperature controller of the first embodiment in the arrangement of the condenser 21 and the compressor 23 with respect to the condenser 16.
  • the condenser 21 has an inlet 211 for flowing the refrigerant for the refrigeration cycle and an outlet 212 for flowing the refrigerant for the refrigeration cycle.
  • the compressor 23 is disposed in the second connection pipe 202.
  • a part of the second connection pipe 202 is disposed below the outlet 164 of the secondary circuit 16b of the condenser 16 in the vertical direction.
  • the refrigeration cycle liquid refrigerant condensed in the condenser 21 is affected by gravity and flows through the outlet 164 of the compressor 23 and the secondary circuit 16b of the condenser 16. It can also be prevented from flowing into the secondary side circuit 16b of the condenser 16 through the above. Therefore, the cooling of the target device by the thermosiphon 10 when the operation of the compressor is stopped can be suppressed.
  • the compressor 23 is provided at a portion of the second connection pipe 202 that is disposed below the outlet 164 of the condenser 16 in the vertical direction.
  • the liquid refrigerant for the refrigeration cycle condensed in the condenser 21 is prevented from flowing into the secondary circuit 16b of the condenser 16 under the influence of gravity. be able to. Therefore, the cooling of the target device when the operation of the compressor is stopped can be suppressed.
  • the inlet 163 of the secondary circuit 16b of the condenser 16 and the outlet 164 of the secondary circuit 16b of the condenser 16 are connected to the inlet 231 of the compressor 23, the outlet 232 of the compressor 23, the expansion valve 22. It is arranged so as to be located more vertically upward. Further, the inlet 163 of the secondary circuit 16b of the condenser 16 and the outlet 164 of the secondary circuit 16b of the condenser 16 are positioned above the inlet 211 of the condenser 21 and the outlet 212 of the condenser 21 in the vertical direction. It is arranged to be.
  • the refrigeration cycle liquid refrigerant further condensed in the condenser 21 is condensed through the inlet 163 of the secondary circuit 16 b of the condenser 16 under the influence of gravity. It can also be prevented from flowing into the secondary circuit 16b of the vessel 16.
  • the device temperature control device of the present embodiment differs from the device temperature control device of the first embodiment in the arrangement of the compressor 23 and the expansion valve 22.
  • the device temperature controller of the present embodiment is arranged such that a part of the first connection pipe 201 is located at a position lower than the inlet 163 of the secondary circuit 16 b of the condenser 16.
  • the first connection pipe 201 connects between the outlet 212 of the condenser 21 and the inlet 163 of the secondary circuit 16 b of the condenser 16.
  • the central portion of the first connection pipe 201 is arranged so as to pass vertically below the outlet 212 of the condenser 21 and the inlet 163 of the secondary circuit 16 b of the condenser 16.
  • the expansion valve 22 is also disposed below the outlet 212 of the condenser 21 and the inlet 163 of the secondary circuit 16b of the condenser 16 in the vertical direction.
  • the inlet 163 of the secondary circuit 16b of the condenser 16 and the outlet 164 of the secondary circuit 16b of the condenser 16 are arranged in a direction above and below the target liquid level of the refrigerant for the refrigeration cycle. It is arranged on the upper side.
  • the target liquid level is the liquid level of the refrigerant for the refrigeration cycle when the second circulation circuit 200 of the refrigeration cycle 20 is filled with the refrigerant for the refrigeration cycle.
  • the worker When filling the second circulation circuit 200 of the refrigeration cycle 20 with the refrigerant for the refrigeration cycle, the worker fills the refrigerant for the refrigeration cycle so that the liquid level of the refrigerant for the refrigeration cycle becomes a predetermined target liquid level. It has become.
  • the inlet 163 of the secondary circuit 16b of the condenser 16 and the outlet 164 of the secondary circuit 16b of the condenser are connected to the refrigeration when the second connection pipe 202 is filled with the refrigeration cycle refrigerant. It is arranged above the target liquid level of the cycle refrigerant in the vertical direction.
  • a device temperature controller according to a fifth embodiment will be described with reference to FIG.
  • the device temperature control device of the present embodiment is different from the device temperature control device of the first embodiment in the arrangement of the outlet 164 of the secondary circuit 16b of the condenser 16.
  • the outlet 164 of the secondary circuit 16 b of the condenser 16 is arranged vertically above the inlet 211 of the condenser 21.
  • a part of the second connection pipe 202 is arranged above the inlet 211 of the condenser 21 in the vertical direction.
  • the liquid refrigerant of the refrigeration cycle condensed by the condenser 21 flows from the inlet 211 to the outlet 164 of the secondary circuit 16 b of the condenser 16. Can be suppressed. Therefore, the cooling of the target device by the thermosiphon 10 when the operation of the compressor is stopped can be suppressed.
  • FIG. 10 An apparatus temperature controller according to a sixth embodiment will be described with reference to FIG.
  • the apparatus temperature controller of the present embodiment is different from the apparatus temperature controller of the first embodiment in the height of the inlet 211 and the outlet 212 of the condenser 21 and the arrangement of the expansion valve 22.
  • the positions of the inlet 211 and the outlet 212 of the condenser 21 are arranged above the condenser 21 in the vertical direction. Specifically, the positions of the inflow port 211 and the outflow port 212 of the condenser 21 are arranged above the vertical center of the space inside the condenser 21 where the refrigerant for the refrigeration cycle is stored.
  • the refrigerant for the refrigeration cycle accumulates in the condenser 21 and is hardly discharged from the inlet 211 and the outlet 212 of the condenser 21.
  • the liquid refrigerant of the refrigeration cycle condensed by the condenser 21 is suppressed from flowing into the secondary circuit 16 b of the condenser 16 from the inlet 211 and the outlet 212. can do. Therefore, the cooling of the target device by the thermosiphon 10 when the operation of the compressor is stopped can be suppressed.
  • the device temperature controller of the present embodiment is different from the device temperature controller of the first embodiment in the height of the inlet and the outlet of the condenser 21 and the arrangement of the expansion valve 22.
  • the positions of the inlet 211 and the outlet 212 of the condenser 21 are arranged slightly above the vertical center of the space inside the condenser 21 where the refrigerant for the refrigeration cycle is stored. .
  • the positions of the inflow port 211 and the outflow port 212 of the condenser 21 may be arranged slightly above the vertical center of the space inside the condenser 21 in which the refrigerant for the refrigeration cycle is stored. Also in this case, when the compressor 23 stops operating, the liquid refrigerant of the refrigeration cycle condensed by the condenser 21 can be prevented from flowing into the secondary circuit 16b of the condenser 16. Therefore, the cooling of the target device by the thermosiphon 10 when the operation of the compressor is stopped can be suppressed.
  • the device temperature controller of the present embodiment is different from the device temperature controller of the first embodiment in the arrangement of the first connection pipe 201 and the second connection pipe 202 and the arrangement of the expansion valve 22.
  • a part of the first connection pipe 201 is disposed above the outlet 212 of the condenser 21 in the vertical direction.
  • the first connection pipe 201 faces upward in the up-down direction so as to be at a position higher than the outlet 212 formed in the condenser 21. Extending. Further, after extending in the horizontal direction, the first connection pipe 201 extends upward in the vertical direction to a position substantially equal to the height of the inflow port 163 of the secondary circuit 16b of the condenser 16, and thereafter extends horizontally. And extends to the inlet 163 of the secondary circuit 16 b of the condenser 16.
  • a part of the first connection pipe 201 is disposed at a position higher than the outlet 212 formed in the condenser 21 and the inlet 163 of the secondary circuit 16 b of the condenser 16.
  • the apparatus temperature control device of the present embodiment includes a mechanical expansion valve in the first connection pipe 201 that supplies the refrigerant for the refrigeration cycle flowing out of the outlet 212 of the condenser 21 to the inlet 163 of the secondary circuit 16 b of the condenser 16. 33 are provided.
  • the mechanical expansion valve is configured such that when the compressor 23 stops operating, the valve is mechanically fully closed.
  • the mechanical expansion valve 33 mechanically fully closes the valve, so that the liquid refrigerant of the refrigeration cycle condensed in the condenser 21 flows from the outlet 212 to the condenser 16. Flow into the secondary circuit 16b can be suppressed. Therefore, it is possible to suppress the cooling of the cooling target device by the thermosiphon 10 when the operation of the compressor is stopped.
  • the apparatus temperature controller according to the present embodiment is configured to open and close the first connection pipe 201 that supplies the refrigerant for the refrigeration cycle flowing out of the condenser 21 to the inlet 163 of the secondary circuit 16b of the condenser 16 under the control of the ECU 50.
  • a valve 34 is provided.
  • ECU 50 of the present embodiment periodically executes the processing shown in FIG. First, in S100, ECU 50 determines whether or not to turn off the refrigeration cycle based on whether or not a signal for instructing to turn off the refrigeration cycle has been input. Here, when a signal for instructing to turn off the refrigeration cycle has not been input, the ECU 50 controls the electromagnetic valve 34 to fully open the valve in S102, and returns to the main routine.
  • ECU 50 determines in S104 whether or not the target device needs to be kept warm based on a signal from a temperature sensor that detects the temperature of the target device. I do. Here, if it is determined that the target device needs to be kept warm, the ECU 50 controls the electromagnetic valve 34 so that the valve opening is fully closed in S108, and returns to the main routine.
  • the ECU 50 determines in S104 that it is not necessary to keep the target device warm, the ECU 50 controls the electromagnetic valve 34 to fully open the valve in S106, and returns to the main routine.
  • the electromagnetic valve 34 is controlled so as to fully close the valve opening, so that the liquid refrigerant of the refrigeration cycle condensed in the condenser 21
  • the flow into the side circuit 16b can be suppressed. Therefore, it is possible to suppress the cooling of the cooling target device by the thermosiphon 10 when the operation of the compressor is stopped.
  • the device temperature control device of this embodiment includes an expansion valve 35 with a fully closed function.
  • the expansion valve 35 opens and closes according to an instruction from the ECU 50.
  • the expansion valve 35 is disposed in the first connection pipe 201 and corresponds to a flow area changing part that changes the flow area of the flow path of the refrigeration cycle refrigerant flowing through the first connection pipe 201.
  • ECU 50 of the present embodiment periodically executes the processing shown in FIG. First, in S100, ECU 50 determines whether or not to turn off the refrigeration cycle based on whether or not a signal for instructing to turn off the refrigeration cycle has been input. Here, when the signal instructing to turn off the refrigeration cycle is not input, the ECU 50 normally operates the expansion valve 35 in S202. Specifically, the expansion valve 35 is controlled so that the valve opening reaches a predetermined target opening, and the process returns to the main routine.
  • ECU 50 determines in S104 whether or not the target device needs to be kept warm based on a signal from a temperature sensor that detects the temperature of the target device. I do. Here, if it is determined that the target device needs to be kept warm, the ECU 50 controls the expansion valve 35 to fully close the valve opening in S208, and returns to the main routine.
  • the ECU 50 determines in S104 that it is not necessary to keep the target device warm, the ECU 50 stops the operation of the expansion valve 35 in S206. Specifically, the expansion valve 35 is controlled so that the immediately preceding valve opening is maintained, and the process returns to the main routine.
  • the expansion valve 35 is controlled so as to fully open the valve, so that the liquid refrigerant of the refrigeration cycle condensed in the condenser 21 is discharged to the secondary side of the condenser 16.
  • the flow into the circuit 16b is suppressed. Therefore, it is possible to suppress the cooling of the cooling target device by the thermosiphon 10 when the operation of the compressor is stopped.
  • the device temperature control device of the present embodiment includes, in the first connection pipe 201, a flow path area changing unit (flow area change section) that changes the flow path area of the flow path of the refrigeration cycle refrigerant flowing through the first connection pipe 201. 33 to 35) are provided.
  • a flow path area changing unit flow area change section
  • the device temperature controller of the present embodiment determines whether the compressor 23 has stopped operating and determines whether the target device needs to be kept warm. When it is determined that the operation of the compressor 23 has stopped and it is determined that the target device needs to be kept warm, the flow path of the refrigeration cycle refrigerant flowing through the first connection pipe 201 is completely closed.
  • the expansion valve 35 is controlled as follows. Therefore, the liquid refrigerant of the refrigeration cycle condensed by the condenser 21 is prevented from flowing into the secondary circuit 16 b of the condenser 16. Therefore, the cooling of the target device when the operation of the compressor is stopped can be suppressed.
  • a device temperature controller according to a twelfth embodiment will be described with reference to FIG.
  • the device temperature controller of the present embodiment is different from the device temperature controller of the first embodiment in the shape of the first connection pipe 201.
  • the height of the inlet 163 of the secondary circuit 16 b of the condenser 16 is determined. It extends downward in the up-down direction so as to have the same height. Further, after extending in the horizontal direction, the first connection pipe 201 extends upward in the vertical direction to a position higher than the height of the inflow port 163 of the secondary circuit 16b of the condenser 16. After that, the first connection pipe 201 extends in the horizontal direction and is connected to the inlet 163 of the secondary circuit 16b of the condenser 16.
  • a part of the first connection pipe 201 is arranged at a position higher than the inlet 163 of the secondary circuit 16 b of the condenser 16.
  • the condenser 16 of the present embodiment includes a secondary circuit 16b through which the refrigerant for the refrigeration cycle flows, an inlet 163 for allowing the refrigerant for the refrigeration cycle to flow into the secondary circuit 16b, and a secondary side of the condenser 16. And an outlet 164 through which the refrigerant for the refrigeration cycle flows out of the circuit 16b. Then, when the operation of the compressor 23 of the refrigeration cycle 20 is stopped, the discharge of the refrigeration cycle refrigerant flowing into the secondary circuit 16b from the inlet 163 of the secondary circuit 16b of the condenser 16 is suppressed. Has an emission control structure.
  • the inside of the secondary circuit 16b of the condenser 16 exchanges heat with the refrigerant of the thermosiphon 10 while the refrigerant flowing from the inlet 163 of the condenser 16 flows upward once, and then makes a U-turn. It flows down. The heat exchanges again with the refrigerant of the thermosiphon 10, and the flow is discharged from the outlet 164.
  • the vapor phase refrigeration cycle refrigerant evaporated inside the condenser is not discharged, and the refrigerant flows upward and downward from the inlet 163 and the outlet 164 of the refrigerant condenser 16. Since it accumulates on the upper side in the direction, it functions as a gas accumulation part X.
  • the liquid reservoir 30 is provided in the first connection pipe 201 that supplies the refrigerant for the refrigeration cycle flowing out of the condenser 21 to the inlet 163 of the secondary circuit 16 b of the condenser 16. I have.
  • the liquid reservoir 30 stores the liquid-phase refrigeration cycle refrigerant that has flowed out of the outlet 212 formed in the condenser 21.
  • the refrigerant for the refrigeration cycle which has been condensed in the condenser 21 and flowed out, is stored in the liquid reservoir 30, so that the secondary circuit 16b of the condenser 16 Refrigeration cycle refrigerant can be suppressed from flowing into the refrigeration cycle. Therefore, it is possible to suppress the cooling of the cooling target device by the thermosiphon 10 when the operation of the compressor is stopped.
  • a device temperature controller according to a fourteenth embodiment will be described with reference to FIG.
  • the first connection pipe 201 is disposed above the second connection pipe 202 in the vertical direction.
  • the compressor 23 compresses and discharges the refrigerant for the refrigeration cycle from the condenser 16.
  • the refrigerant for the refrigeration cycle discharged from the compressor 23 is introduced into the condenser 21.
  • the expansion valve 22 reduces the pressure of the refrigerant for the refrigeration cycle flowing out of the condenser 21.
  • the refrigeration cycle refrigerant flowing out of the expansion valve 22 is introduced into the condenser 16.
  • the first connection pipe 201 may be arranged vertically above the second connection pipe 202. Even in this case, when the compressor 23 stops operating, the liquid-phase refrigeration cycle refrigerant condensed in the condenser 21 flows into the secondary circuit 16 b of the condenser 16. Can be suppressed.
  • the compressor 23 is arranged on the path of the second connection pipe 202. By arranging the components of the refrigeration cycle in this way, it is possible to inhibit the flow of the liquid-phase refrigerant into the condenser 16. Therefore, it is possible to suppress the cooling of the cooling target device by the thermosiphon 10 when the operation of the compressor is stopped.
  • a device temperature controller according to a fifteenth embodiment will be described with reference to FIG.
  • the device temperature controller of the present embodiment is different from the device temperature controller of the fourteenth embodiment in further including a check valve 31 in the first connection pipe 201.
  • the check valve 31 is arranged between the compressor 23 and the condenser 21.
  • the check valve 31 prevents the refrigerant for the refrigeration cycle from flowing from the condenser 21 to the compressor 23.
  • the liquid refrigerant for the refrigeration cycle condensed by the condenser 21 can flow into the condenser. Therefore, it is possible to suppress the cooling of the cooling target device by the thermosiphon 10 when the operation of the compressor is stopped.
  • the capacitor 21 of the device temperature controller according to the sixteenth embodiment will be described with reference to FIG.
  • the condenser 21 of the present embodiment is arranged such that the refrigerant for the refrigeration cycle flows in the heat exchange part in the condenser 21 in the lateral direction. Further, the condenser 21 of the present embodiment has two inlets and outlets 213 forming an inlet 211 for flowing the refrigerant for the refrigeration cycle and an outlet 212 for flowing the refrigerant for the refrigeration cycle.
  • the two entrances 213 are arranged at different positions in the vertical direction.
  • the first connection pipe 201 of the present embodiment includes the inlet 213 of the condenser 16, the inlet 213 of the condenser 21, the inlet 213 of the condenser 21, which is disposed vertically above the inlet 213 which is disposed vertically below the inlet 213. Are connected between.
  • the first connection pipe 201 is connected to the inlet / outlet 213 of the condenser 21 which is disposed vertically above the inlet / outlet 213 which is disposed at the lower side in the vertical direction. It is connected between the inflow port 163 of the 16 secondary circuits 16b. Therefore, the liquid-phase refrigeration cycle refrigerant condensed by the condenser 21 can be made less likely to flow into the condenser 16. Therefore, it is possible to suppress the cooling of the cooling target device by the thermosiphon 10 when the operation of the compressor is stopped.
  • the capacitor 21 of the device temperature controller according to the seventeenth embodiment will be described with reference to FIG.
  • the condenser 21 of the present embodiment is arranged such that the refrigerant for the refrigeration cycle flows in the heat exchange part in the condenser 21 in the lateral direction. Further, the condenser 21 of the present embodiment is provided with three entrances 213 at different positions.
  • the first connection pipe 201 is provided between the inlet / outlet 213 of the condenser 21 and the secondary side circuit 16 b of the condenser 16, the inlet / outlet 213 disposed vertically above the inlet / outlet 213 disposed at the lowermost side in the vertical direction.
  • the connection with the entrance 163 is established. Therefore, the liquid-phase refrigeration cycle refrigerant condensed in the condenser 21 can be made more difficult to flow into the condenser 16. Therefore, it is possible to suppress the cooling of the cooling target device by the thermosiphon 10 when the operation of the compressor is stopped.
  • the capacitor 21 of the device temperature controller according to the eighteenth embodiment will be described with reference to FIG.
  • the condenser 21 of the present embodiment is arranged such that the refrigerant for the refrigeration cycle flows in the heat exchange section in the condenser 21 in the vertical direction. Further, the condenser 21 of the present embodiment is provided with two entrances 213 at the upper part and one entrance 213 at the lower part.
  • the first connection pipe 201 is provided between the inlet / outlet 213 of the condenser 21 and the secondary side circuit 16 b of the condenser 16, the inlet / outlet 213 disposed vertically above the inlet / outlet 213 disposed at the lowermost side in the vertical direction.
  • the connection with the entrance 163 is established. Therefore, the liquid-phase refrigeration cycle refrigerant condensed in the condenser 21 can be made more difficult to flow into the condenser 16. Therefore, it is possible to suppress the cooling of the cooling target device by the thermosiphon 10 when the operation of the compressor is stopped.
  • the condenser 21 of the present embodiment has an inlet 211 through which the refrigeration cycle refrigerant flows, and an outlet 212 through which the refrigeration cycle refrigerant flows out.
  • the condenser 16 has an inlet 163 through which the refrigerant for the refrigeration cycle flows, and an outlet 164 through which the refrigerant for the refrigeration cycle flows out.
  • the circulation circuit 200 has a third connection that connects between a first branch portion M provided in the middle of the first connection pipe 201 and a second branch portion N provided in the middle of the second connection pipe 202.
  • a pipe 203 is provided.
  • the third connection pipe 203 has a valve 51, a decompression unit 52 for depressurizing the refrigerant for the refrigeration cycle flowing from the condenser 21, and a heat exchange between the refrigerant for the refrigeration cycle decompressed by the decompression unit 52 and air. And a refrigeration cycle evaporator 40 for cooling the refrigeration cycle.
  • a part of the flow path between the outlet 164 of the condenser 16 and the second branch portion N in the second connection pipe 202 is arranged so as to be located vertically above the second branch portion N. .
  • the compressor 23 is driven, the valve 34 is closed, and the valve 51 is opened, the third connection pipe A part of the refrigerant flows into the refrigerant 203 as a liquid-phase refrigerant without being evaporated by the evaporator 40 for the refrigeration cycle.
  • the liquid-phase refrigeration cycle refrigerant flowing from the refrigeration cycle evaporator 40 into the second branch N has a higher density than the gas-phase refrigeration cycle refrigerant. It accumulates on the lower surfaces of the second connection pipe 202 and the third connection pipe 203.
  • thermosiphon 10 it is possible to prevent the refrigerant for the refrigeration cycle from flowing into the second branch portion N from the evaporator 40 for the refrigeration cycle from flowing into the outlet 164 of the condenser 16. Therefore, cooling of the cooling target device by the thermosiphon 10 can be suppressed.
  • the flow path between the outlet 41 of the refrigeration cycle evaporator 40 and the second branch portion N in the third connection pipe 203 extends from the second branch portion N to the refrigeration cycle evaporation device. As it approaches the outlet 41 of the vessel 40, it is inclined upward in the vertical direction.
  • the liquid-phase refrigeration cycle refrigerant that has flowed into the second branch portion N without evaporating is provided on the lower surfaces of the second connection pipe 202 and the third connection pipe 203. Accumulate in
  • low-temperature oil also flows into the third connection pipe 203, and It accumulates on the lower surfaces of the pipe 202 and the third connection pipe 203.
  • a part of the flow path between the first branch portion M in the first connection pipe 201 and the inlet 163 of the condenser 16 is more vertically arranged than the inlet 163 of the condenser 16. It is located on the lower side.
  • a protruding portion 2010 that protrudes upward and downward in the vertical direction is formed. Therefore, the cooling of the target device by the thermosiphon 10 when the operation of the compressor is stopped can be suppressed.
  • the refrigeration cycle refrigerant flowing out of the refrigeration cycle evaporator 40 is blocked by the protrusion 2010. Further, the refrigerant for the refrigeration cycle flowing out of the condenser 21 is blocked and the inflow of the refrigerant for the refrigeration cycle to the inlet 163 of the condenser 16 can be suppressed.
  • a turn portion 165 that changes the direction of the refrigerant for the refrigerating cycle flowing from the inlet 163 of the secondary circuit 16b is disposed inside the secondary circuit 16b of the condenser 16.
  • This turn part 165 after extending upward in the vertical direction from the inlet 163 of the secondary circuit 16 b inside the secondary circuit 16 b of the condenser 16, vertically downward toward the outlet 164.
  • An extending channel is formed.
  • the direction of the refrigeration cycle refrigerant is changed by the turn portion 165.
  • the portion functions as a gas reservoir X. Then, discharge of the gas-phase refrigerant generated by the evaporation is suppressed. Therefore, it becomes difficult for the liquid refrigerant for the refrigeration cycle to flow in, and it is possible to suppress the cooling of the device to be cooled by the thermosiphon 10 when the operation of the compressor is stopped. Further, the gas reservoir X provides a heat insulating effect.
  • the device temperature control device of the present embodiment includes turn portions 166 and 167 that change the direction of the refrigeration cycle refrigerant flowing from the inlet 163 of the secondary circuit 16b into the secondary circuit 16b of the condenser 16. Is arranged. Then, the directions of the refrigerant for the refrigerating cycle change so as to meander by the turn portions 166 and 167.
  • the portion hatched in FIG. Functions as a unit.
  • the gas reservoir has a heat insulating effect.
  • a device temperature controller according to a twenty-fifth embodiment will be described with reference to FIG.
  • a turn portion 168 that changes the direction of the refrigeration cycle refrigerant flowing from the inlet 163 of the secondary circuit 16b is disposed inside the secondary circuit 16b of the condenser 16.
  • the inflow port 163 of the secondary circuit 16b of the condenser 16 is disposed above the vertical center of the space for storing the refrigerant for the refrigeration cycle inside the secondary circuit 16b of the condenser 16.
  • the liquid-phase refrigeration cycle refrigerant flowing into the secondary circuit 16b of the condenser 16 from the inlet 163 of the secondary circuit 16b of the condenser 16 evaporates inside the secondary circuit 16b of the condenser 16. An attempt is made to flow back to the inlet side of the secondary circuit 16b of the condenser 16 as indicated by the arrow RF. Thus, the discharge of the refrigeration cycle refrigerant flowing into the secondary circuit 16b of the condenser 16 from the inlet 163 of the secondary circuit 16b of the condenser 16 is suppressed.
  • thermosiphon 10 when the operation of the compressor is stopped. Also, since the refrigerant flows backward, only a part of the secondary circuit 16b, which is a heat exchanger, is used for heat exchange instead of the entire area.
  • the device temperature controller according to the twenty-sixth embodiment will be described with reference to FIG.
  • the refrigerant for the refrigeration cycle flows into the secondary circuit 16b of the condenser 16 from both the condenser 21 and the evaporator 40 for the refrigeration cycle.
  • the secondary circuit 16b of the condenser 16 has an inlet 1631 through which the refrigerant for the refrigeration cycle flows in from the condenser 21 and an inlet 1632 through which the refrigerant for the refrigeration cycle flows from the evaporator 40 for the refrigeration cycle. .
  • the inlet 1631 and the inlet 1632 of the secondary circuit 16 b of the condenser 16 are arranged below the secondary circuit 16 b of the condenser 16. Specifically, the inflow port 1631 and the inflow port 1632 of the secondary circuit 16b of the condenser 16 are located closer to the vertical center of the space in the secondary circuit 16b of the condenser 16 where the refrigerant for the refrigeration cycle is stored. It is located below.
  • a turn part 165 that changes the direction of the refrigerant for the refrigeration cycle flowing from the inlet 163 of the secondary circuit 16b is disposed inside the secondary circuit 16b of the condenser 16.
  • the refrigerant evaporates inside the condenser and is vapor-phase refrigerant. 34, the hatched portion in FIG. 34 functions as a gas reservoir by the turn portion 165. Thereby, discharge of the refrigerant for the refrigeration cycle flowing into the secondary circuit 16b from the inlet 1632 of the secondary circuit 16b of the condenser 16 is suppressed.
  • the device temperature controller of the present embodiment is different from the device temperature controller of the twenty-sixth embodiment in the arrangement of the inflow port 1632 of the secondary circuit 16b of the condenser 16 and the configuration of the turn parts 166 and 167. .
  • the inlet 1632 of the secondary circuit 16 b of the condenser 16 is arranged below the secondary circuit 16 b of the condenser 16. Specifically, the inflow port 1632 of the secondary circuit 16b of the condenser 16 is disposed above the vertical center of the space for storing the refrigeration cycle refrigerant inside the secondary circuit 16b of the condenser 16. ing.
  • the device temperature controller of the present embodiment makes the refrigeration cycle refrigerant flowing from the inlet 163 of the secondary circuit 16b meander into the secondary circuit 16b of the condenser 16 by meandering.
  • Turn portions 166 and 167 that form a flow path that reaches the outflow port 164 are disposed.
  • the refrigerant evaporates inside the condenser and the vapor phase It becomes a refrigerant, and the hatched portion in FIG. 35 functions as a gas reservoir by the turn part 166. Thereby, the discharge of the refrigeration cycle refrigerant flowing into the secondary circuit 16b from the inlet 1631 of the secondary circuit 16b of the condenser 16 is suppressed. Further, the gas reservoir has a heat insulating effect.
  • the device temperature controller of the present embodiment is different from the device temperature controller of the twenty-sixth embodiment in the arrangement of the inlets 1631 and 1632 of the secondary circuit 16b of the condenser 16 and the configuration of the turn part 168. .
  • the inlet 1632 of the secondary circuit 16 b of the condenser 16 is arranged above the secondary circuit 16 b of the condenser 16. Specifically, the inflow port 1631 and the inflow port 1632 of the secondary circuit 16b of the condenser 16 are located closer to the vertical center of the space in the secondary circuit 16b of the condenser 16 where the refrigerant for the refrigeration cycle is stored. It is located above.
  • the turn part 168 for changing the direction of the refrigeration cycle refrigerant flowing from the inlet 163 of the secondary circuit 16b is provided inside the secondary circuit 16b of the condenser 16. Are located.
  • the cooler 14 of the present embodiment has a heat exchange core 14a and tanks 14b and 14c.
  • the tank 14c is connected to the outbound piping 101, and the tank 14b is connected to the inbound piping 102.
  • Heat exchange core 14a is arranged between batteries 12a and 12b.
  • Battery 12a and battery 12b have terminals T1 and T2, respectively.
  • terminals T1 and T2 are arranged on the side surfaces of the batteries 12a and 12b.
  • Thermosyphon refrigerant is introduced from the condenser 16 into the tank 14c via the return pipe 102.
  • the heat exchange core 14a cools the batteries 12a and 12b by exchanging heat between the refrigerant for the refrigeration cycle and the refrigerant for the thermosiphon.
  • the refrigerant for the thermosiphon evaporates inside the heat exchange core 14a, and the evaporated refrigerant for the thermosiphon is introduced into the condenser 16 via the return pipe 102.
  • terminals T1 and T2 are arranged on the side surfaces of the batteries 12a and 12b.
  • terminals T1 and T2 are arranged on the upper surfaces of the batteries 12a and 12b.
  • the device temperature controller according to the thirty-first embodiment will be described with reference to FIG.
  • the heat exchange core 14a of the cooler 14 is arranged on the lower surfaces of the batteries 12a and 12b. That is, the battery 12a and the battery 12b are arranged only on one surface of the heat exchange core 14a.
  • a device temperature controller according to a thirty-second embodiment will be described with reference to FIG.
  • the configuration of the device temperature controller of the present embodiment is the same as that of the device temperature controller of the tenth embodiment.
  • the device temperature control device of the present embodiment is different from the device temperature control device of the tenth embodiment in the processing of the ECU 50 after S104.
  • ECU 50 of the present embodiment periodically executes the processing shown in FIG. First, in S100, ECU 50 determines whether or not to turn off the refrigeration cycle based on whether or not a signal for instructing to turn off the refrigeration cycle has been input.
  • the ECU 50 determines in S104 whether or not the target device needs to be kept warm based on a signal from the temperature sensor that detects the temperature of the target device. judge.
  • the ECU 50 determines that the target device does not need to be kept warm, and if the temperature of the target device is less than the first threshold, the target device needs to be kept warm. It is determined that there is.
  • the ECU 50 determines in S302 whether it is necessary to increase the cooling capacity. Specifically, when the temperature of the target device is equal to or higher than a second threshold value higher than the first threshold value, it is determined that the cooling capacity of the target device needs to be increased. If the temperature of the target device is less than the second threshold, it is determined that it is not necessary to increase the cooling capacity of the target device.
  • the ECU 50 turns on the refrigeration cycle in S304. Specifically, the compressor 23 is operated. Further, the electromagnetic valve 34 is controlled so that the valve opening is fully opened, and the process returns to the main routine.
  • the ECU 50 controls the electromagnetic valve 34 to fully open the valve in S106 without operating the compressor 23. Return.
  • the ECU 50 of the device temperature control device of the present embodiment can control the cooling capacity of the target device. If it is determined that the increase is necessary, the compressor 23 is operated in S304.
  • the first heat medium can be forced to flow into the condenser 16 and the cooling performance can be increased.
  • the cooling capacity of the target device it is determined whether the cooling capacity of the target device needs to be increased based on whether the temperature of the target device is equal to or higher than the second threshold.
  • the user instructs to increase the cooling capacity of the target device, it may be determined that the cooling capability of the target device needs to be increased.
  • FIG. 30 An appliance temperature controller according to a thirty-third embodiment will be described with reference to FIG.
  • the configuration of the device temperature control device of the present embodiment is the same as the device temperature control devices of the tenth and thirty-second embodiments.
  • the device temperature control device of the present embodiment is different from the above-described thirty-second embodiment in the processing of the ECU 50 after S302.
  • the ECU 50 determines whether it is necessary to increase the cooling capacity. Specifically, when the temperature of the target device is equal to or higher than the second threshold, it is determined that the cooling capacity of the target device needs to be increased. If the temperature of the target device is less than the second threshold, it is determined that it is not necessary to increase the cooling capacity of the target device.
  • the ECU 50 determines in S308 whether or not to allow an increase in the cooling capacity of the target device. For example, when the target device is the secondary batteries 12a and 12b that supply power to the compressor 23, when the secondary batteries 12a and 12b are being charged or when it is estimated that the charging of the secondary batteries 12a and 12b is started. It is determined that the increase in the cooling capacity of the target device is permitted. When the secondary batteries 12a and 12b are not being charged or when it is estimated that the charging of the secondary batteries 12a and 12b is not started, it is determined that the increase in the cooling capacity of the target device is not permitted.
  • the ECU 50 turns on the refrigeration cycle in S304. Specifically, the compressor 23 is operated. Further, the electromagnetic valve 34 is controlled so that the valve opening is fully opened, and the process returns to the main routine.
  • the ECU 50 sets the valve opening to fully open in S306. Controls the electromagnetic valve 34 and returns to the main routine.
  • the ECU 50 of the device temperature control device of the present embodiment increases the cooling capability of the target device in S308. It is determined whether to permit.
  • the ECU 50 of the device temperature controller of the present embodiment when estimating that the secondary batteries 12a and 12b are being charged or that the charging of the secondary batteries 12a and 12b is to be started, increases the cooling capacity of the target device. It is determined to be permitted. Therefore, since power for driving the compressor 23 can be secured, it is possible to suppress a decrease in the cruising distance due to the secondary batteries 12a and 12b during the next traveling.
  • FIG. 34 An appliance temperature controller according to a thirty-fourth embodiment will be described with reference to FIG.
  • the configuration of the device temperature controller of the present embodiment is the same as that of the device temperature controller of the eleventh embodiment.
  • the device temperature control device of the present embodiment is different from the device temperature control device of the eleventh embodiment in the processing of the ECU 50 after S104.
  • ECU 50 of the present embodiment periodically executes the processing shown in FIG. First, in S100, ECU 50 determines whether or not to turn off the refrigeration cycle based on whether or not a signal for instructing to turn off the refrigeration cycle has been input.
  • the ECU 50 determines in S104 whether or not the target device needs to be kept warm based on a signal from the temperature sensor that detects the temperature of the target device. judge. Specifically, if the temperature of the target device is equal to or higher than the first threshold, the ECU 50 determines that the target device does not need to be kept warm, and if the temperature of the target device is less than the first threshold, the target device needs to be kept warm. It is determined that there is.
  • the ECU 50 determines in S302 whether it is necessary to increase the cooling capacity. Specifically, when the temperature of the target device is equal to or higher than a second threshold value higher than the first threshold value, it is determined that the cooling capacity of the target device needs to be increased. If the temperature of the target device is less than the second threshold, it is determined that it is not necessary to increase the cooling capacity of the target device.
  • the ECU 50 turns on the refrigeration cycle in S404. Specifically, the compressor 23 is operated. Further, the expansion valve 35 is normally operated. Specifically, the expansion valve 35 is controlled so that the valve opening reaches a predetermined target opening, and the process returns to the main routine.
  • the ECU 50 controls the expansion valve 35 so as to close the valve fully without operating the compressor 23 in S206.
  • the ECU 50 of the device temperature control device of the present embodiment operates the compressor 23 in S304.
  • the first heat medium can be forced to flow into the condenser 16 and the cooling performance can be increased.
  • the cooling capacity of the target device it is determined whether the cooling capacity of the target device needs to be increased based on whether the temperature of the target device is equal to or higher than the second threshold. On the other hand, when an increase in the cooling capacity of the target device is instructed from a user operation, it may be determined that the cooling capability of the target device needs to be increased.
  • the ECU 50 determines whether it is necessary to increase the cooling capacity. Specifically, when the temperature of the target device is equal to or higher than the second threshold, it is determined that the cooling capacity of the target device needs to be increased, and when the temperature of the target device is lower than the second threshold, the cooling capability of the target device is determined. It is determined that no increase is necessary.
  • the ECU 50 determines in S308 whether or not to allow an increase in the cooling capacity of the target device. For example, when the target device is the secondary batteries 12a and 12b, when it is estimated that the secondary batteries 12a and 12b are being charged or the charging of the secondary batteries 12a and 12b is started, the cooling capacity of the target device is increased. It is determined to be permitted.
  • the ECU 50 turns on the refrigeration cycle in S404. Specifically, the compressor 23 is operated. Further, the expansion valve 35 is normally operated. Specifically, the expansion valve 35 is controlled so that the valve opening reaches a predetermined target opening, and the process returns to the main routine.
  • the ECU 50 When the secondary batteries 12a and 12b are not being charged or when it is estimated that the charging of the secondary batteries 12a and 12b is not started, the ECU 50 does not turn on the refrigeration cycle, and in S406, The expansion valve 35 is controlled to fully open the valve. Then, the process returns to the main routine.
  • the ECU 50 of the device temperature control device of the present embodiment increases the cooling capability of the target device in S308. It is determined whether to permit.
  • the ECU 50 of the device temperature controller of the present embodiment when estimating that the secondary batteries 12a and 12b are being charged or that the charging of the secondary batteries 12a and 12b is to be started, increases the cooling capacity of the target device. It is determined to be permitted. Therefore, since electric power for driving the compressor 23 can be secured, a decrease in the cruising distance due to the secondary batteries 12a and 12b during the next traveling can be suppressed.
  • the device temperature controller according to the thirty-sixth embodiment will be described with reference to FIG.
  • the configuration of the device temperature control device of the present embodiment is the same as the device temperature control devices of the eleventh, thirty-fourth, and thirty-fifth embodiments.
  • the ECU 50 determines whether or not to turn off the refrigeration cycle. If it is determined that the refrigeration cycle is to be turned off, the processing from S104 is performed.
  • the ECU 50 determines whether or not the vehicle has stopped traveling, and if it is determined that the vehicle has stopped traveling, performs the processing from S104.
  • the ECU 50 determines whether or not the vehicle has stopped traveling. Here, when the vehicle is running, the process returns to the main routine without performing any special processing. If the vehicle has stopped traveling, the ECU 50 determines in S104 whether or not the target device needs to be kept warm. Here, when it is determined that the target device needs to be kept warm, the ECU 50 turns off the refrigeration cycle in S2081. Specifically, the compressor 23 is stopped. Further, the expansion valve 35 is controlled so that the valve opening is fully closed, and the process returns to the main routine.
  • the ECU 50 determines in S302 whether it is necessary to increase the cooling capacity.
  • the ECU 50 turns off the refrigeration cycle in S2061. Specifically, the compressor 23 is stopped. Further, the expansion valve 35 is controlled so that the valve opening is fully opened, and the process returns to the main routine.
  • the ECU 50 determines that the vehicle is stopped, determines that the target device does not need to be kept warm, and determines that it is necessary to increase the cooling capacity.
  • the refrigeration cycle is turned on, and the expansion valve 35 is operated normally. Therefore, the first heat medium can flow into the condenser 16, and the cooling performance can be increased.
  • the device temperature controller according to the thirty-seventh embodiment will be described with reference to FIG.
  • the configuration of the device temperature control device of the present embodiment is the same as the device temperature control devices of the eleventh, thirty-fourth, thirty-fifth, and thirty-sixth embodiments.
  • the ECU 50 determines whether or not to turn off the refrigeration cycle. If it is determined that the refrigeration cycle is to be turned off, the processing from S104 is performed.
  • the ECU 50 determines whether or not the vehicle has stopped traveling, and if it is determined that the vehicle has stopped traveling, performs the processing from S104.
  • the ECU 50 determines whether or not the vehicle has stopped traveling. Here, when the vehicle is running, the process returns to the main routine without performing any special processing. If the vehicle has stopped traveling, the ECU 50 determines in S104 whether or not the target device needs to be kept warm. Here, when it is determined that the target device needs to be kept warm, the ECU 50 turns off the refrigeration cycle in S2081. Specifically, the compressor 23 is stopped. Further, the expansion valve 35 is controlled so that the valve opening is fully closed, and the process returns to the main routine.
  • the ECU 50 determines in S302 whether it is necessary to increase the cooling capacity.
  • the ECU 50 turns off the refrigeration cycle in S2061. Specifically, the compressor 23 is stopped. Further, the expansion valve 35 is controlled so that the valve opening is fully opened, and the process returns to the main routine.
  • the ECU 50 determines in S308 whether or not to allow the cooling capacity of the target device to be increased.
  • the ECU 50 controls the expansion valve 35 in S4061 to turn off the refrigeration cycle and fully open the valve opening similarly to S2061. I do.
  • the ECU 50 turns on the refrigeration cycle in S4041. Specifically, the compressor 23 is operated. Further, the expansion valve 35 is normally operated. Specifically, the expansion valve 35 is controlled so that the valve opening reaches a predetermined target opening, and the process returns to the main routine.
  • the ECU 50 turns off the refrigeration cycle in S4061. Specifically, the compressor 23 is stopped. Further, the expansion valve 35 is controlled so that the valve opening is fully opened, and the process returns to the main routine.
  • the ECU 50 determines that the vehicle is stopped, determines that it is not necessary to keep the target device warm, and determines that the cooling capacity needs to be increased. When it is determined to permit, the ECU 50 turns on the refrigeration cycle. Further, the expansion valve 35 is normally operated. Therefore, the first heat medium can flow into the condenser 16, and the cooling performance can be increased.
  • the cooler 14 is arranged between the secondary batteries 12a and 12b, and the terminals are extended from the lateral direction. .
  • the cooler 14 is arranged between the secondary batteries 12a and 12b, and the terminals are extended from above.
  • the secondary battery 12a is arranged on one side of the cooler 14 as shown in FIG.
  • the shape and arrangement of the cooler 14 and the secondary batteries 12a and 12b are not limited to those described in the above embodiments.
  • At least a part of the first connection pipe 201 may be disposed below the inlet 163 of the condenser 16, and at least a part of the first connection pipe 201 It is also possible to adopt a configuration arranged above the outlet 212 in the up-down direction.
  • a configuration in which a part of the second connection pipe 202 is disposed below the outlet 164 of the condenser 16 in the vertical direction, and a part of the second connection pipe 202 is 21 shows a configuration arranged above the inflow port 211 in the vertical direction.
  • At least a part of the second connection pipe 202 may be arranged below the outlet 164 of the condenser 16 in the vertical direction.
  • at least a part of the second connection pipe 202 may be configured to be disposed above the inlet 211 of the condenser 21 in the up-down direction.
  • the turn part 165 extending in the vertical direction is formed inside the secondary circuit 16b of the condenser 16. Then, the turn portion 165 extends inside the secondary circuit 16 b of the condenser 16 from the inlet 163 of the secondary circuit 16 b upward in the vertical direction, and then extends downward in the vertical direction toward the outlet 164. A channel extending to the side is formed. On the other hand, as shown in FIGS. 46 to 49, a turn portion 169 extending in the horizontal direction can be formed inside the secondary circuit 16b of the condenser 16. In particular, in the configuration shown in FIG.
  • the positions of the inflow port 163 and the outflow port 164 are low, and the refrigerant for the refrigeration cycle that flows into the secondary circuit 16b and evaporates is difficult to escape, so that the discharge of the refrigeration cycle refrigerant is suppressed. Can be easier to do. Also in the configuration shown in FIG. 49, the positions of the inflow port 1631 and the inflow port 1632 are low, and the refrigerant for the refrigeration cycle that flows into the secondary circuit 16b and evaporates becomes difficult to escape, thereby suppressing the discharge of the refrigeration cycle refrigerant. Can be easier to do.
  • the liquid reservoir 30 is provided in the first connection pipe 201 for supplying the refrigerant for the refrigeration cycle flowing out of the condenser 21 to the inlet 163 of the secondary circuit 16b of the condenser 16.
  • the condenser 21 and the liquid reservoir 30 may be provided integrally.
  • the capacitor 21 is arranged vertically, but the capacitor 21 may be arranged horizontally.
  • the rechargeable batteries 12a and 12b mounted on the electric vehicle are set as the objects to be cooled by the device temperature control device.
  • those other than the rechargeable batteries 12a and 12b are set as the objects to be cooled. You can also.
  • the device temperature control device includes a thermosiphon having a first circulation circuit that circulates a first heat medium, The temperature of the target device is adjusted by the phase change between the liquid phase and the gas phase.
  • the device temperature control device includes a second circulation circuit that circulates the second heat medium, and a compressor that compresses and discharges the second heat medium inside the second circulation circuit.
  • a heat radiating heat exchanger that exchanges heat with the second heat medium discharged from the compressor and radiates heat of the second heat medium, and depressurizes the second heat medium flowing out of the heat radiating heat exchanger.
  • thermosiphon is provided in the first circulation circuit, and includes a device heat exchanger configured to be able to exchange heat between the target device and the first heat medium such that the first heat medium evaporates when the target device is cooled.
  • a condenser for exchanging heat between the second heat medium depressurized by the expansion valve and the first heat medium evaporated by the equipment heat exchanger to condense the first heat medium.
  • the condenser has an inlet for flowing in the second heat medium, and an outlet for flowing out the second heat medium
  • the heat-radiating heat exchanger has an inlet for flowing in the second heat medium; And an outlet for flowing out the second heat medium.
  • the compressor has a suction port for sucking the second heat medium, and a discharge port for discharging the second heat medium.
  • the second circulation circuit has a first connection pipe that connects between an outlet of the heat exchanger for heat radiation and an inlet of the condenser.
  • it has a second connection pipe that connects between the outlet of the condenser and the inlet of the heat exchanger for heat radiation.
  • At least a portion of the first connection pipe is disposed below the inlet of the condenser in the vertical direction. Therefore, when the compressor stops operating, the second heat medium can be prevented from flowing from the heat-radiating heat exchanger to the condenser due to gravity, and the thermosiphon when the compressor stops operating can be suppressed. The cooling of the cooling target device due to the above can be suppressed.
  • At least a portion of the first connection pipe is disposed vertically above the outlet of the heat-radiating heat exchanger. Therefore, when the compressor stops operating, the second heat medium can be prevented from flowing from the heat-radiating heat exchanger to the condenser due to gravity, and the thermosiphon when the compressor stops operating can be suppressed. The cooling of the cooling target device due to the above can be suppressed.
  • At least a part of the second connection pipe is disposed below the inlet of the condenser in the vertical direction. Therefore, when the compressor stops operating, the second heat medium can be prevented from flowing from the heat-radiating heat exchanger to the condenser due to gravity, and the thermosiphon when the compressor stops operating can be suppressed. The cooling of the cooling target device due to the above can be suppressed.
  • At least a part of the second connection pipe is disposed vertically above the inflow port of the heat radiation heat exchanger. Therefore, when the compressor stops operating, the second heat medium can be prevented from flowing from the heat-radiating heat exchanger to the condenser due to gravity, and the thermosiphon when the compressor stops operating can be suppressed. The cooling of the cooling target device due to the above can be suppressed.
  • the inlet of the condenser and the outlet of the condenser are the inlet of the compressor, the outlet of the compressor, the expansion valve, the inlet of the heat exchanger for heat dissipation, and the heat of heat dissipation. It is arranged so as to be located vertically above the outlet of the exchanger.
  • the second heat medium can be prevented from flowing from the heat-radiating heat exchanger to the condenser due to gravity, and the thermosiphon when the compressor stops operating can be suppressed.
  • the cooling of the cooling target device due to the above can be suppressed.
  • the inflow port of the condenser and the outflow port of the condenser are arranged vertically above and below the target liquid level of the second heat medium when the second circulation medium is filled with the second heat medium. It is arranged on the upper side.
  • the second heat medium can be prevented from flowing from the heat-radiating heat exchanger to the condenser due to gravity, and the thermosiphon when the compressor stops operating can be suppressed.
  • the cooling of the cooling target device due to the above can be suppressed.
  • the inlet of the heat-radiating heat exchanger and the outlet of the heat-radiating heat exchanger are located at the center in the vertical direction of the space where the second heat medium inside the heat-radiating heat exchanger is stored. Are also located above.
  • the second heat medium inside the heat radiating heat exchanger can hardly flow out from the inlet of the heat radiating heat exchanger and the outlet of the heat radiating heat exchanger. Further, when the operation of the compressor is stopped, it is also possible to suppress the second heat medium from flowing into the condenser from the heat radiation heat exchanger by gravity.
  • the device temperature control device further includes a liquid storage section that is disposed in the first connection pipe and stores the second heat medium that has flowed out of the outlet of the heat-radiating heat exchanger.
  • a liquid storage section that is disposed in the first connection pipe and stores the second heat medium that has flowed out of the outlet of the heat-radiating heat exchanger.
  • the compressor is provided in a portion of the second connection pipe that is disposed below the outlet of the condenser in the vertical direction.
  • the second heat is supplied from the heat-radiating heat exchanger to the condenser through the compressor. The inflow of the medium can be suppressed.
  • the heat-radiating heat exchanger has at least two ports (213) forming an inlet for flowing in the second heat medium and an outlet for flowing out the second heat medium. I have.
  • the entrance and exit of the heat exchanger for heat radiation are arranged at different positions in the vertical direction.
  • connection piping connects between the entrance and exit arranged in the up-and-down direction above the entrance and exit arranged in the up-and-down direction most among the entrances and exits of the heat exchanger for heat dissipation, and the inflow of the condenser. I have.
  • the second heat medium can be prevented from flowing from the heat-radiating heat exchanger to the condenser by gravity, and the thermosiphon when the compressor stops operating can be suppressed.
  • the cooling of the cooling target device due to the above can be suppressed.
  • At least one of the first connection pipe and the second connection pipe has a flow path of a flow path of the second heat medium flowing through at least one of the first connection pipe and the second connection pipe.
  • a channel area changing section for changing the area is provided. Therefore, when the compressor stops operating, the second heat medium can be prevented from flowing from the heat-radiating heat exchanger to the condenser due to gravity, and the thermosiphon when the compressor stops operating can be suppressed. The cooling of the cooling target device due to the above can be suppressed.
  • the flow path area changing portion is an expansion valve.
  • the flow path area changing portion can be configured by the expansion valve, and the number of components can be reduced.
  • the flow path area changing unit is a valve that opens and closes the flow path of the second heat medium.
  • the flow path area changing portion can be configured by the valve that opens and closes the flow path of the second heat medium.
  • the device temperature control device includes an operation determination unit that determines whether the compressor has stopped operating and a heat retention determination that determines whether the target device needs to be kept warm. And a unit.
  • the operation determining unit determines that the compressor has stopped operating and the heat retention determining unit determines that the target device needs to be kept warm
  • the flow of the second heat medium flowing through the first connection pipe is determined.
  • a flow path control unit that controls the valve so as to reduce the flow path area of the path.
  • the second heat medium can be prevented from flowing from the heat-radiating heat exchanger to the condenser due to gravity, and the thermosiphon when the compressor stops operating can be suppressed.
  • the cooling of the cooling target device due to the above can be suppressed.
  • the device temperature control device is mounted on the vehicle, and the heat radiation heat exchanger exchanges heat between the second heat medium and the outside air of the vehicle.
  • the heat-radiating heat exchanger can be configured to perform heat exchange between the second heat medium and the outside air of the vehicle.
  • the heat exchanger for heat dissipation has an inlet for inflow of the second heat medium and an outlet for outflow of the second heat medium
  • the condenser includes the second heat medium. It has an inlet for flowing the medium and an outlet for flowing the second heat medium.
  • the second circulation circuit includes a first branch part provided in the middle of the first connection pipe, and a third connection pipe connecting between the second branch part provided in the middle of the second connection pipe, have.
  • the third connection pipe has a decompression unit for decompressing the second heat medium flowing from the heat exchanger for heat radiation, and a refrigeration unit for exchanging air with the second heat medium decompressed by the decompression unit to cool the air.
  • a cycle evaporator for decompressing the second heat medium flowing from the heat exchanger for heat radiation, and a refrigeration unit for exchanging air with the second heat medium decompressed by the decompression unit to cool the air.
  • At least a part of the flow path between the outlet of the condenser and the second branch portion in the second connection pipe is disposed so as to be located vertically above the second branch portion.
  • an apparatus temperature controller includes a thermosiphon having a first circulation circuit that circulates a first heat medium, and the target apparatus is controlled by a phase change between a liquid phase and a gas phase of the first heat medium. Adjust the temperature of the.
  • the device temperature control device includes a second circulation circuit that circulates the second heat medium, and a compressor that compresses and discharges the second heat medium inside the second circulation circuit. Further, a heat radiating heat exchanger that exchanges heat with the second heat medium discharged from the compressor and radiates heat of the second heat medium, and depressurizes the second heat medium flowing out of the heat radiating heat exchanger.
  • An expansion valve ;
  • thermosiphon is provided in the first circulation circuit, and includes a device heat exchanger configured to be able to exchange heat between the target device and the first heat medium such that the first heat medium evaporates when the target device is cooled.
  • a condenser is provided for exchanging heat between the second heat medium depressurized by the expansion valve and the first heat medium evaporated by the equipment heat exchanger to condense the first heat medium.
  • the condenser includes a secondary circuit through which the second heat medium flows, an inlet through which the second heat medium flows into the secondary circuit, an outlet through which the second heat medium flows out of the secondary circuit, have. And it has the discharge
  • a turn portion (165 to 167) for changing the direction of the second heat medium flowing from the inlet of the secondary circuit is disposed inside the secondary circuit. . Then, the direction of the second heat medium is changed by the turn portion, so that the discharge of the second heat medium flowing into the secondary circuit from the inflow port is suppressed. Thus, it is possible to suppress the discharge of the second heat medium that has flowed into the secondary circuit.
  • the inside of the secondary circuit is provided with a second gaseous phase above and below the inlet formed in the secondary circuit and the outlet formed in the secondary circuit.
  • a gas reservoir (X) for storing the heat medium is formed.
  • the second heat medium is accumulated in the gas reservoir, the discharge of the second heat medium that has flowed into the secondary circuit from the inflow port is suppressed.
  • a turn portion (168) for changing the direction of the second heat medium flowing from the inflow port formed in the secondary circuit is disposed inside the secondary circuit.
  • the inflow port of the secondary circuit is disposed above the vertical center of the space in the secondary circuit where the second heat medium is stored.
  • the second heat medium that has flowed into the secondary circuit evaporates inside the secondary circuit and tends to flow back to the inlet side of the secondary circuit. Therefore, the discharge of the refrigerant for the refrigeration cycle flowing into the secondary circuit of the condenser from the inlet of the secondary circuit of the condenser is suppressed. Thus, it is possible to suppress the discharge of the second heat medium that has flowed into the secondary circuit.
  • the device temperature control device includes the heat retention determining unit that determines whether the target device needs to be kept warm.
  • a capacity increase determination unit that determines whether the cooling capacity of the target device needs to be increased.
  • a compressor operating unit that operates the compressor. It has.
  • the compressor operating unit needs to increase the cooling capacity of the target device by the capacity increase determination unit. If it is determined that there is, the compressor is operated.
  • the first heat medium can be forced to flow into the condenser, and the cooling performance can be increased.
  • the heat retention determination unit determines that the target device needs to be kept warm, and the temperature of the target device is lower than the first threshold. In this case, it is determined that the target device need not be kept warm.
  • the capacity increase determination unit determines that the cooling capacity of the target device needs to be increased, and the temperature of the target device becomes the second threshold value. If less than, it is determined that it is not necessary to increase the cooling capacity of the target device.
  • the heat retention determining unit determines that the target device needs to be kept warm, and the capacity increase determination unit determines that the temperature of the target device is higher than the first threshold. If it is equal to or higher than the high second threshold, it is preferable to determine that the cooling capacity of the target device needs to be increased.
  • the capacity increase determination unit determines that the cooling capacity of the target device needs to be increased
  • the permission determination for determining whether to permit the increase of the cooling capacity of the target device is performed. It has a part.
  • the compressor operating unit operates the compressor.
  • the compressor can be operated.
  • the target device is a secondary battery that supplies power to the compressor, and the permission determination unit determines that the secondary battery is being charged or that the charging of the secondary battery is started. When it is estimated, it is determined that the increase of the cooling capacity of the target device is permitted. Therefore, since electric power for driving the compressor 23 can be secured, it is possible to suppress a decrease in the cruising distance due to the secondary battery in the next traveling.
  • processing of S304, S404, and S4041 corresponds to the compressor operating unit
  • processing of S100 corresponds to the operation determining unit.
  • processing of S302 corresponds to a capacity increase determination unit
  • processing of S104 corresponds to a heat retention determination unit
  • processing of S108 corresponds to a flow path control unit.

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Abstract

Ce dispositif de réglage de température d'appareil, pourvu d'un thermosiphon (10) qui a un premier circuit de circulation (100) à travers lequel circule un premier milieu thermique, est pourvu d'un cycle de réfrigération (20) qui a un second circuit de circulation (200) à travers lequel circule un second milieu thermique. Un condenseur (16) du thermosiphon a un orifice d'entrée (163) à travers lequel s'écoule le second milieu thermique et un orifice de sortie (164) à travers lequel s'écoule le second milieu thermique. Lorsque le fonctionnement d'un compresseur (23) du cycle de réfrigération est arrêté, l'entrée du second milieu thermique due à la gravité provenant d'un échangeur de chaleur pour un rayonnement de chaleur dans le cycle de réfrigération vers le condenseur est supprimée.
PCT/JP2019/025671 2018-06-29 2019-06-27 Dispositif de réglage de température d'appareil WO2020004573A1 (fr)

Applications Claiming Priority (4)

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JP2018-124857 2018-06-29
JP2018124857 2018-06-29
JP2019-103924 2019-06-03
JP2019103924A JP2020008270A (ja) 2018-06-29 2019-06-03 機器温調装置

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WO2020004573A1 true WO2020004573A1 (fr) 2020-01-02

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114654962A (zh) * 2022-02-28 2022-06-24 河南科技大学 一种电动汽车热管理系统、热管理方法及电动汽车

Citations (8)

* Cited by examiner, † Cited by third party
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JP2001121949A (ja) * 1999-10-29 2001-05-08 Denso Corp 冷凍サイクル装置
JP2003042599A (ja) * 2001-08-01 2003-02-13 Denso Corp 冷凍サイクル装置
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CN114654962B (zh) * 2022-02-28 2024-07-02 河南科技大学 一种电动汽车热管理系统、热管理方法及电动汽车

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