WO2024095826A1 - 冷却モジュール - Google Patents
冷却モジュール Download PDFInfo
- Publication number
- WO2024095826A1 WO2024095826A1 PCT/JP2023/038317 JP2023038317W WO2024095826A1 WO 2024095826 A1 WO2024095826 A1 WO 2024095826A1 JP 2023038317 W JP2023038317 W JP 2023038317W WO 2024095826 A1 WO2024095826 A1 WO 2024095826A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- flow path
- expansion valve
- refrigerant
- manifold
- receiver
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
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- 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
- F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
- F25B5/02—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel
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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 devices
- B60H1/00485—Valves for air-conditioning devices, e.g. thermostatic valves
-
- 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 devices
- B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
- B60H1/00557—Details of ducts or cables
- B60H1/00571—Details of ducts or cables of liquid ducts, e.g. for coolant liquids or refrigerants
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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 devices
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3227—Cooling devices using compression characterised by the arrangement or the type of heat exchanger, e.g. condenser, evaporator
-
- 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 devices
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3229—Cooling devices using compression characterised by constructional features, e.g. housings, mountings, conversion systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/40—Fluid line arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2400/00—Component parts or details not otherwise provided for in this subclass
- F25B2400/16—Receivers
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- 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
- F25B25/00—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00
- F25B25/005—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00 using primary and secondary systems
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- 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
- F25B2500/00—Problems to be solved
- F25B2500/18—Optimization, e.g. high integration of refrigeration components
Definitions
- This disclosure relates to a cooling module.
- Patent document 1 discloses a reservoir configured to facilitate at least one of the storage and flow of a liquid medium to a pump, chiller, heater, etc., by joining a first section and a second section.
- Patent document 1 discloses that the reservoir includes an integral channel that provides a path for the liquid medium to flow to a pump, valve, heater, etc., and that the liquid medium is transported between multiple components via the integral channel.
- the reservoir described in Patent Document 1 will be used as the receiver tank.
- the reservoir described in Patent Document 1 is made compact by using an integrated channel, a separate receiver tank is required, which takes up limited space in the vehicle.
- This disclosure has been made in consideration of the above problems, and its purpose is to provide a compact cooling module.
- the cooling module according to the present disclosure is characterized in that it includes a manifold having a flow path formed therein through which a fluid flows, the manifold having, inside the manifold, a branch flow path branching off from the flow path, a merging flow path that merges with the flow path downstream of the branch flow path in the flow direction of the fluid, and a storage section that communicates with the branch flow path and the merging flow path, stores the fluid flowing through the branch flow path, and distributes the stored fluid from the merging flow path to the flow path.
- FIG. 1 is a diagram illustrating a circuit configuration of a cooling system according to an embodiment.
- FIG. 2 is a diagram showing a part of the external appearance of a manifold according to an embodiment.
- FIG. 2 is a perspective view showing a part of the inside of a manifold according to an embodiment.
- FIG. 11 is a perspective view showing a part of the inside of a manifold according to another embodiment.
- [Cooling system] 1 is a diagram showing a schematic circuit configuration of a cooling system 200 having a cooling module 100.
- the cooling module 100 is disposed integrally with a drive unit (not shown) equipped with a motor (not shown).
- the cooling module 100 may be provided separately from the drive unit (not shown).
- the motor (not shown) is disposed, for example, in a motor room of a train or the like.
- the cooling system 200 includes a cooling fluid circuit 1 in which a cooling fluid W circulates, and a refrigerant circuit 2 in which a refrigerant R (an example of a fluid) circulates.
- the cooling fluid W is a cooling fluid such as long-life coolant (LLC), insulating oil such as paraffin, or a refrigerant such as hydrofluorocarbon (HFC) or hydrofluoroolefin (HFO).
- the refrigerant R is a refrigerant such as hydrofluorocarbon (HFC) or hydrofluoroolefin (HFO).
- the cooling fluid circuit 1 is a circuit for adjusting (cooling) the temperature of the secondary battery 11.
- the cooling fluid circuit 1 includes a cooling fluid flow path L1 through which a cooling fluid W flows, the secondary battery 11, and a chiller 12 that performs heat exchange between the cooling fluid W and a refrigerant R.
- the secondary battery 11 and the chiller 12 are connected via the cooling fluid flow path L1.
- the cooling fluid W is heated by heat generated from the secondary battery 11, flows into the chiller 12, is cooled in the chiller 12 by heat exchange with the refrigerant R, and then flows into the secondary battery 11 and is heated again by heat generated from the secondary battery 11.
- the refrigerant circuit 2 is a circuit for adjusting the temperature inside the vehicle cabin.
- the refrigerant circuit 2 includes a refrigerant flow path L2 (an example of a flow path) through which a refrigerant R flows.
- a flow direction D the direction in which the refrigerant R flows
- the upstream side of the flow direction D is simply referred to as the "upstream side”
- the downstream side is simply referred to as the "downstream side”.
- the refrigerant circuit 2 also includes a compressor 21 that compresses the refrigerant R, a condenser 22 that condenses the refrigerant R compressed by the compressor 21, an expansion valve 23 that expands the condensed refrigerant R, an evaporator 24 that evaporates the refrigerant R expanded by the expansion valve 23, and a chiller 12 that exchanges heat between the refrigerant R expanded by the expansion valve 23 and the cooling fluid W.
- the expansion valve 23 includes a first expansion valve 231 connected to the evaporator 24 and a second expansion valve 232 connected to the chiller 12.
- the refrigerant flow path L2 also includes a first refrigerant flow path L21 (an example of a first flow path) and a second refrigerant flow path L22 (an example of a second flow path) branched off from the first refrigerant flow path L21.
- the compressor 21, the condenser 22, the receiver 20, the first expansion valve 231 and the evaporator 24 are connected to the first refrigerant flow path L21, and the refrigerant R expanded by the first expansion valve 231 flows into the evaporator 24.
- the second expansion valve 232 and chiller 12 are connected to the second refrigerant flow path L22, and the refrigerant R expanded by the second expansion valve 232 flows into the chiller 12.
- the second refrigerant flow path L22 is connected to the first refrigerant flow path L21 between the evaporator 24 and the compressor 21 downstream of the chiller 12, and the refrigerant R after heat exchange in the chiller 12 merges with the refrigerant R flowing through the first refrigerant flow path L21 between the evaporator 24 and the compressor 21.
- the first expansion valve 231 and the evaporator 24, and the second expansion valve 232 and chiller 12 form a parallel circuit.
- the refrigerant R is compressed by the compressor 21 described with reference to FIG. 1 to become a high-temperature compressed gas, and then flows into the condenser 22, where it is condensed and liquefied.
- the liquefied refrigerant R is expanded by the first expansion valve 231 or the second expansion valve 232 to become a low-temperature, low-pressure mist.
- the misted refrigerant R that is not used to adjust the temperature inside the vehicle cabin i.e., the refrigerant R expanded by the second expansion valve 232, flows into the chiller 12.
- the refrigerant R absorbs heat from the cooling fluid W circulating in the cooling fluid circuit 1 described with reference to FIG. 1, and evaporates and vaporizes.
- the vaporized refrigerant R flows into the compressor 21.
- FIG. 2 is a diagram showing a portion of the external appearance of the manifold 10.
- the manifold 10 is manufactured, for example, by die-casting, in which molten metal, such as aluminum, is pressed into a mold.
- the refrigerant circuit 2 further includes a branch flow path L3 branching from the refrigerant flow path L2, a merging flow path L4 merging into the refrigerant flow path L2 downstream of the branch flow path L3, and a receiver 20 (an example of a storage section) connected (communicating) to the branch flow path L3 and the merging flow path L4.
- a receiver 20 an example of a storage section connected (communicating) to the branch flow path L3 and the merging flow path L4.
- two branch flow paths L3 and two merging flow paths L4 are provided.
- branch flow paths L3 will be referred to as the “first branch flow path L31” and the other as the “second branch flow path L32", and one of the merging flow paths L4 will be referred to as the “first merging flow path L41” and the other as the “second merging flow path L42" (see FIG. 3).
- the branch flow path L3 branches off from the refrigerant flow path L2 between the condenser 22 and the expansion valve 23, and the merge flow path L4 merges with the refrigerant flow path L2 downstream of the branch flow path L3 (between the condenser 22 and the expansion valve 23).
- the branch flow path L3 and the merge flow path L4 are connected to the refrigerant flow path L2 downstream of the condenser 22, and are connected to the refrigerant flow path L2 upstream of the expansion valve 23.
- the receiver 20 stores the refrigerant R flowing through the branch flow path L3, i.e., the liquid refrigerant R condensed by the condenser 22.
- the storage of refrigerant R in the receiver 20 and the supply of refrigerant R from the receiver 20 are controlled by adjusting the discharge amount (output) of the compressor 21 and the opening degree of the expansion valve 23.
- the compressor 21 and the expansion valve 23 are controlled by a control device (not shown) including a processor such as a CPU (Central Processing Unit).
- the supply amount the amount of refrigerant R supplied from the compressor 21 to the expansion valve 23 via the condenser 22
- the amount of refrigerant R required by the expansion valve 23 hereinafter referred to as the “required amount”
- the storage amount the amount of refrigerant R stored in the receiver 20
- the receiver 20, the branch flow path L3, the merging flow path L4, and a portion of the refrigerant flow path L2 are formed inside the manifold 10 (see Figure 3).
- FIG. 3 is a perspective view showing a part of the inside of the manifold 10.
- the first refrigerant flow path L21 is formed inside the manifold 10 so as to follow the outer edge of the manifold 10.
- the condenser 22 is disposed on the upstream side of the first refrigerant flow path L21 formed inside the manifold 10, and the evaporator 24 is disposed on the downstream side.
- the first expansion valve 231 is disposed on the upstream side of the evaporator 24.
- the orientation of the manifold 10 during use is not particularly limited, but hereinafter, the side on which the evaporator 24 is disposed with respect to the first expansion valve 231 is referred to as the "lower side", and the opposite side is referred to as the "upper side”.
- the second refrigerant flow path L22 branches off from the first refrigerant flow path L21 at a branching position P between the condenser 22 and the first expansion valve 231, and extends in a direction intersecting the extension direction of the first refrigerant flow path L21.
- the chiller 12 is disposed downstream of the second refrigerant flow path L22, and the second expansion valve 232 is disposed upstream of the chiller 12.
- an external connection flow path L5 is formed inside the manifold 10, which is connected to an external flow path (not shown) and the first refrigerant flow path L21. Note that the external connection flow path L5 is omitted in Figure 2.
- the external connection flow path L5 receives refrigerant R from an external flow path (not shown) and merges the refrigerant R into the first refrigerant flow path L21.
- the external flow path is a refrigerant flow path formed outside the manifold 10 and is a flow path different from the refrigerant flow path L2.
- Auxiliary equipment such as a condenser (not shown, but different from condenser 22) is connected to the external flow path.
- the receiver 20 is disposed near the expansion valve 23 inside the manifold 10 so as to avoid the refrigerant flow path L2, the branch flow path L3, the merging flow path L4, the first expansion valve 231, and the second expansion valve 232.
- the space inside the manifold 10 where the refrigerant flow path L2, the branch flow path L3, the merging flow path L4, the first expansion valve 231, and the second expansion valve 232 are not provided is referred to as the "dead space”. That is, the receiver 20 is disposed in the dead space of the manifold 10 near the expansion valve 23.
- the dead space is the area inside the manifold 10 behind (inside) the area where the auxiliary equipment such as the condenser 22 and the chiller 12 provided outside the manifold 10 described with reference to FIG. 2 are disposed. That is, the dead space is the area inside the projected image of the auxiliary equipment such as the condenser 22 and the chiller 12 when viewed in a direction perpendicular to the main surface of the manifold 10.
- the main surface of the manifold 10 is a plane including the direction in which the flow path L extends.
- the dead space is located between the first refrigerant flow path L21 and the external connection flow path L5.
- two receivers 20 are provided inside the manifold 10.
- the receiver 20 arranged between the first expansion valve 231 and the second expansion valve 232 will be referred to as the "first receiver 201”
- the receiver 20 arranged farther from the first expansion valve 231 (upper side) than the first receiver 201 will be referred to as the "second receiver 202.”
- the first receiver 201 is connected to the first branch flow path L31 and the first merging flow path L41.
- the first branch flow path L31 connects the first receiver 201 and the refrigerant flow path L2 (second refrigerant flow path L22).
- the first branch flow path L31 is connected to the upstream end (near the branch position P) of the second refrigerant flow path L22 in the flow direction D, and is connected to the first refrigerant flow path L21 via the second refrigerant flow path L22.
- the first merging flow passage L41 connects the first receiver 201 and the first expansion valve 231. More specifically, the first merging flow passage L41 is connected to the first refrigerant flow passage L21 upstream of the first expansion valve 231 near the first expansion valve 231, and communicates with the first expansion valve 231 via the first refrigerant flow passage L21.
- the first merging flow passage L41 is also connected to the evaporator 24 via the first expansion valve 231 and the first refrigerant flow passage L21 downstream of the first expansion valve 231. That is, the first expansion valve 231 communicates with the first receiver 201 via the first merging flow passage L41 connected to the first refrigerant flow passage L21 upstream of the first expansion valve 231.
- the first expansion valve 231 is connected to the evaporator 24 via the first refrigerant flow passage L21 downstream of the first expansion valve 231.
- the second receiver 202 is connected to the second branch flow path L32 and the second merging flow path L42.
- the second branch flow path L32 connects the second receiver 202 with the refrigerant flow path L2 (first refrigerant flow path L21).
- the second branch flow path L32 is connected to the first refrigerant flow path L21 upstream of the branch position P.
- the second merging flow path L42 connects the second receiver 202 and the second expansion valve 232. More specifically, the second merging flow path L42 is connected to the second refrigerant flow path L22 upstream of the second expansion valve 232 in the vicinity of the second expansion valve 232. That is, the second receiver 202 connects to the second expansion valve 232 via the second refrigerant flow path L22.
- the second merging flow path L42 is connected to the chiller 12 via the second expansion valve 232 and the second refrigerant flow path L22 downstream of the second expansion valve 232. That is, the second expansion valve 232 connects to the second receiver 202 via the second merging flow path L42 connected to the second refrigerant flow path L22 upstream of the second expansion valve 232.
- the second expansion valve 232 is connected to the chiller 12 via the second refrigerant flow path L22 downstream of the second expansion valve 232.
- the refrigerant R from the condenser 22 flows entirely into the expansion valve 23 without being newly stored in the receiver 20.
- the refrigerant R from the condenser 22 flows through the first refrigerant flow path L21 and flows into the first expansion valve 231, and also flows into the second expansion valve 232 via the first refrigerant flow path L21 and the second refrigerant flow path L22.
- the opening degree of the expansion valve 23 when the supply amount of refrigerant R and the required amount of refrigerant R are equal is referred to as the "reference opening degree”
- the discharge amount of the compressor 21 is referred to as the "reference discharge amount”.
- the compressor 21 is controlled so that its discharge amount (output) becomes larger than the reference discharge amount in response to the change in the opening of the expansion valve 23.
- the refrigerant R is compressed by the compressor 21, condensed by the condenser 22, and then supplied to the expansion valve 23, it takes time (hereinafter referred to as the "first required time") to reach the expansion valve 23, and the expansion valve 23 temporarily becomes short of refrigerant R.
- the compressor 21 and the expansion valve 23 are controlled so that the refrigerant R is stored in advance in the receiver 20.
- the compressor 21 is controlled so that the discharge amount is greater than the reference discharge amount
- the expansion valve 23 is controlled so that the opening degree of at least one of the first expansion valve 231 and the second expansion valve 232 is maintained at the reference opening degree (or is smaller than the reference opening degree).
- the compressor 21 is controlled so that the discharge amount is maintained at the reference discharge amount
- the expansion valve 23 is controlled so that the opening degree of at least one of the first expansion valve 231 and the second expansion valve 232 is smaller than the reference opening degree.
- the storage mode a portion of the refrigerant R from the condenser 22 flows into the first expansion valve 231 and the second expansion valve 232, and the remaining portion of the refrigerant R flows into the first receiver 201 via the first branch flow path L31 and is stored in the first receiver 201, and also flows into the second receiver 202 via the second branch flow path L32 and is stored in the second receiver 202.
- the refrigerant R stored in the first receiver 201 and the second receiver 202 is supplied to the first expansion valve 231 and the second expansion valve 232.
- the refrigerant R stored in the first receiver 201 is supplied to the first expansion valve 231 via the first merging flow path L41
- the refrigerant R stored in the second receiver 202 is supplied to the second expansion valve 232 via the second merging flow path L42.
- the first receiver 201 is disposed near the first expansion valve 231. Therefore, when the opening degree of the first expansion valve 231 increases, the refrigerant R stored in the first receiver 201 is supplied to the first expansion valve 231 in a second required time that is shorter than the first required time. As a result, it is possible to suppress a shortage of refrigerant R at the first expansion valve 231.
- the second receiver 202 is disposed near the second expansion valve 232, when the opening degree of the second expansion valve 232 increases, the refrigerant R stored in the second receiver 202 is supplied to the second expansion valve 232 in a third required time that is shorter than the first required time.
- the second required time and the third required time may be the same time or slightly different times.
- the vicinity of the expansion valve 23 refers to the position of the receiver 20 and the merging flow path L4 such that the second required time and the third required time are shorter than the first required time.
- the vicinity of the expansion valve 23 is the position of the receiver 20 (the area close to the expansion valve 23) where the second required time and the third required time are shorter than the first required time.
- the branch flow path L3, the merging flow path L4, and the receiver 20 are provided inside the manifold 10, so that the cooling module 100 can be made compact.
- the receiver 20 can store the refrigerant R.
- the cooling module 100 is compact and can respond to a sudden change in the output of the cooling function (especially a sudden increase in the output of the cooling function).
- the merging flow path L4 communicating with the receiver 20 is disposed near the expansion valve 23, so that the stored refrigerant R can flow into the expansion valve 23 at an appropriate time.
- the refrigerant R can be supplied from the receiver 20 to the expansion valve 23 in a shorter period of time than the refrigerant R supplied from the compressor 21, etc., so that a shortage of refrigerant R at the expansion valve 23 can be suppressed.
- the branch flow path L3 and the merging flow path L4 that communicate with the receiver 20 are connected to the refrigerant flow path L2 downstream of the condenser 22, so that the receiver 20 can store the refrigerant R condensed by the condenser 22.
- the opening degree of the expansion valve 23 increases and the amount of refrigerant R required by the expansion valve 23 increases, it is possible to suppress a shortage of refrigerant R at the expansion valve 23.
- the receiver 20 is disposed in the dead space of the manifold 10 near the expansion valve 23, which improves the space utilization efficiency of the manifold 10 and allows the cooling module 100 to be made more compact.
- the amount (required amount) of refrigerant R used to adjust the temperature in the vehicle cabin i.e., the amount (required amount) required for the first expansion valve 231 connected to the evaporator 24 to expand the refrigerant R, may be greater than the amount (required amount) required for the second expansion valve 232 connected to the chiller 12 to expand the refrigerant R.
- the volume of the first receiver 201 may be greater than the volume of the second receiver 202. This makes it possible to prevent a shortage of refrigerant R in the first expansion valve 231 (a shortage of refrigerant R used to adjust the temperature in the vehicle cabin).
- the refrigerant R stored in the first receiver 201 is supplied to the first expansion valve 231, and the refrigerant R stored in the second receiver 202 is supplied to the second expansion valve 232, but the refrigerant R stored in the first receiver 201 may be supplied to the second expansion valve 232, and the refrigerant R stored in the second receiver 202 may be supplied to the first expansion valve 231. Also, a portion of the refrigerant R stored in the first receiver 201 may be supplied to the first expansion valve 231, and the remainder may be supplied to the second expansion valve 232. The same applies to the refrigerant R stored in the second receiver 202.
- the number of receivers 20 is not particularly limited and may be, for example, one, or three or more.
- the refrigerant R stored in the receiver 20 is supplied to the first expansion valve 231 and the second expansion valve 232.
- the number of branch flow paths L3 and merging flow paths L4 also changes depending on the number of receivers 20.
- the positions of the auxiliary devices such as the chiller 12 and the condenser 22 described with reference to FIG. 2 may be changed as appropriate.
- the positions of the receiver 20, the branch flow path L3, and the merging flow path L4 arranged inside the manifold 10 may also be changed as appropriate depending on the positions of the auxiliary devices.
- the dead space is described as being an area inside the manifold 10 behind (inside) the area in which the auxiliary equipment is arranged, but the dead space does not have to be an area behind (inside) the area in which the auxiliary equipment is arranged. In addition, the dead space does not have to be located between the first refrigerant flow path L21 and the external connection flow path L5.
- the chiller 12, the condenser 22, and the expansion valve 23 are described as examples of the auxiliary equipment attached to the manifold 10, but the auxiliary equipment attached to the manifold 10 can be changed as appropriate.
- the cooling module 100 is composed of the manifold 10 and the auxiliary equipment attached to the manifold 10
- the cooling system 200 is composed of the cooling module 100 and the auxiliary equipment included in the cooling fluid circuit 1 and the refrigerant circuit 2 other than the auxiliary equipment attached to the manifold 10.
- refrigerant R is described as an example of a fluid, but the fluid is not limited to refrigerant R.
- the cooling module 100 is characterized in that it includes a manifold 10 having a refrigerant flow path L2 (flow path) formed therein through which a refrigerant R (fluid) flows, and the manifold 10 has, inside the manifold 10, a branch flow path L3 branching off from the refrigerant flow path L2 (flow path), a merging flow path L4 merging into the refrigerant flow path L2 (flow path) downstream of the branch flow path L3 in the flow direction D of the refrigerant R (fluid), and a receiver 20 (storage section) that communicates with the branch flow path L3 and the merging flow path L4, stores the refrigerant R (fluid) flowing through the branch flow path L3, and distributes the stored refrigerant R (fluid) from the merging flow path L4 to the refrigerant flow path L2 (flow path).
- a manifold 10 having a refrigerant flow path L2 (flow path) formed therein through which a ref
- the cooling module 100 can be made compact.
- the receiver 20 storage section
- the cooling module 100 can store liquid refrigerant R.
- the cooling module 100 is compact and can respond to sudden changes in the output of the cooling function.
- the cooling module 100 of (1) further includes a condenser 22 and an expansion valve 23 attached to the manifold 10 and connected to the refrigerant flow path L2 (flow path), and the confluence flow path L4 is connected to the refrigerant flow path L2 (flow path) between the condenser 22 and the expansion valve 23, which is closer to the expansion valve 23, and the branch flow path L3 and the confluence flow path L4 may be connected to the refrigerant flow path L2 (flow path) downstream of the condenser 22.
- the merging flow path L4 communicating with the receiver 20 is disposed near the expansion valve 23, so that the stored refrigerant R (fluid) can be made to flow into the expansion valve 23 at an appropriate time.
- the merging flow path L4 is connected to the refrigerant flow path L2 (flow path) between the condenser 22 and the expansion valve 23, which is closer to the expansion valve 23, and the branch flow path L3 and the merging flow path L4 are connected to the refrigerant flow path L2 (flow path) downstream of the condenser 22.
- the opening degree of the expansion valve 23 increases and the amount of liquid refrigerant R required by the expansion valve 23 increases, it becomes possible to supply the liquid refrigerant R from the receiver 20 (storage section) to the expansion valve 23 in a shorter period of time than the refrigerant R supplied from a compressor or the like, so that a shortage of refrigerant R (fluid) at the expansion valve 23 can be suppressed.
- the receiver 20 (storage section) may be disposed in the dead space of the manifold 10 near the expansion valve 23.
- the receiver 20 (storage section) is placed in the dead space of the manifold 10 near the expansion valve 23, improving the space utilization efficiency of the manifold 10 and making the cooling module 100 more compact.
- the dead space may be disposed between a first refrigerant flow path L21 (first flow path) in which a condenser 22 is disposed on the upstream side of the refrigerant flow path L2 (flow path) and an expansion valve 23 is disposed on the downstream side, and an external connection flow path L5 through which refrigerant R (fluid) flows from an external flow path provided outside the manifold 10 and merges with the first refrigerant flow path L21 (first flow path).
- the receiver 20 (storage section) is placed in the dead space between the refrigerant flow path L2 (flow path) and the external connection flow path L5, improving the space utilization efficiency of the manifold 10 and making the cooling module 100 more compact.
- the dead space may be the area behind the area inside the manifold 10 where the auxiliary equipment including the condenser 22 is arranged.
- the receiver 20 (storage section) is placed in the dead space of the manifold 10 behind the auxiliary equipment (inside the projected image of the auxiliary equipment), improving the space utilization efficiency of the manifold 10 and making the cooling module 100 more compact.
- an evaporator 24 and a chiller 12 are further provided, which are connected to the refrigerant flow path L2 (flow path), the expansion valve 23 includes a first expansion valve 231 and a second expansion valve 232, the refrigerant flow path L2 (flow path) includes a first refrigerant flow path L21 (first flow path) connected to the first expansion valve 231 and a second refrigerant flow path L22 (second flow path) connected to the second expansion valve 232, the merging flow path L4 includes a first merging flow path L41 and a second merging flow path L42, the receiver 20 (storage section) includes a first receiver 201 (first storage section) and a second receiver 202 (second storage section), and the first expansion valve 231 is connected to the first receiver 201 (first storage section) via a first merging flow path L41 connected to the upstream first refrigerant flow path L21 (first flow path) and is connected to the evaporator 24 via the downstream
- the volume of the first receiver 201 (first storage section) that communicates with the first expansion valve 231 connected to the evaporator 24 via the first merging flow path L41 is larger than the volume of the second receiver 202 (second storage section) that communicates with the second expansion valve 232 connected to the chiller 12 via the second merging flow path L42.
- the amount (required amount) required for the first expansion valve 231 connected to the evaporator 24 to expand the refrigerant R (fluid) may be larger than the amount (required amount) required for the second expansion valve 232 connected to the chiller 12 to expand the refrigerant R (fluid).
- This disclosure can be used in cooling modules.
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Abstract
Description
図1は、冷却モジュール100を有する冷却システム200の回路構成を模式的に示す図である。本実施形態では、冷却モジュール100は、モータ(不図示)を備えた駆動ユニット(不図示)に一体的に配置されている。ただし、冷却モジュール100は、駆動ユニット(不図示)と別体で設けられてもよい。モータ(不図示)は、例えば、電車動等のモータルームに配置される。
冷却流体回路1は、二次電池11の温度を調整(冷却)するための回路である。冷却流体回路1は、冷却流体Wが流通する冷却流体流路L1、二次電池11、及び冷却流体Wと冷媒Rとの間で熱交換を行うチラー12を含む。二次電池11とチラー12とは、冷却流体流路L1を介して接続される。冷却流体Wは、二次電池11から発する熱により加熱された後、チラー12に流入し、チラー12において冷媒Rとの熱交換によって冷却された後、二次電池11に流入し、二次電池11から発する熱により再び加熱される。
冷媒回路2は、車室内の温度を調整するための回路である。冷媒回路2は、冷媒Rが流通する冷媒流路L2(流路の一例)を含む。以下、冷媒Rが流通する方向を流通方向Dといい、流通方向Dの上流側を単に「上流側」、下流側を単に「下流側」という。
図3は、マニホールド10の内部の一部を示す斜視図である。図3に示すように、第一冷媒流路L21は、マニホールド10の外縁に沿うように、マニホールド10の内部に形成される。マニホールド10の内部に形成される第一冷媒流路L21の上流側には、凝縮器22が配置され、下流側には、エバポレータ24が配置される。また、エバポレータ24の上流側には第一膨張弁231が配置される。なお、使用時におけるマニホールド10の向きは特に限定されないが、以下では、第一膨張弁231に対してエバポレータ24が配置される側「下側」といい、その反対側を「上側」という。
次に、図1及び図3を参照して、マニホールド10の内部における冷媒Rの流通について説明する。
以上説明したように、本実施形態によれば、分岐流路L3、合流流路L4及びレシーバー20がマニホールド10の内部に設けられるため、冷却モジュール100のコンパクト化を図ることができる。また、この冷却モジュール100をヒートポンプシステムに用いた場合、レシーバー20が冷媒Rを貯めることが可能となる。これにより、例えば、二次電池11の冷却中に冷房のスイッチが入れられたとき、通常のようにコンプレッサ21の出力を上げる必要がなく、レシーバー20に貯留された冷媒Rを用いて冷房を速やかに作動させることができる。このように、冷却機能の出力の急激な変化(特に、冷却機能の出力の急激な増大)に対応可能なコンパクトな冷却モジュール100となっている。
本開示は、上記した実施形態以外に以下のように構成してもよい(実施形態と同じ機能を有するものには、実施形態と共通の番号、符号を付している)。
Claims (6)
- 流体が流通する流路が内部に形成されたマニホールドを備え、
前記マニホールドは、前記マニホールドの内部に、
前記流路から分岐した分岐流路と、
前記分岐流路よりも前記流体の流通方向の下流側で前記流路に合流する合流流路と、
前記分岐流路及び前記合流流路と連通し、前記分岐流路を流通する前記流体を貯留すると共に、貯留された前記流体を前記合流流路から前記流路に流通させる貯留部と、
を有する冷却モジュール。 - 前記マニホールドに取付けられ、前記流路に接続された凝縮器及び膨張弁を更に備え、
前記合流流路は、前記凝縮器と前記膨張弁との間の前記流路において、前記膨張弁に近い側の前記流路に接続されており、
前記分岐流路と前記合流流路とは、前記凝縮器の下流側の前記流路に接続されている請求項1に記載の冷却モジュール。 - 前記貯留部は、前記膨張弁の近傍における前記マニホールドのデッドスペースに配置されている請求項2に記載の冷却モジュール。
- 前記デッドスペースは、前記流路うちの上流側に前記凝縮器が配置され、下流側に前記膨張弁が配置される第一流路と、前記マニホールドの外部に設けられる外部流路からの前記流体が流入し前記第一流路に前記流体を合流させる外部接続流路との間に配置されている請求項3に記載の冷却モジュール。
- 前記デッドスペースは、前記マニホールドの内部のうち前記凝縮器を含む補機類が配置される領域の裏側の領域である請求項3に記載の冷却モジュール。
- 前記流路に接続されたエバポレータとチラーとを更に備え、
前記膨張弁は第一膨張弁と第二膨張弁とを含んでおり、
前記流路は、前記第一膨張弁に接続された第一流路と前記第二膨張弁に接続された第二流路とを含んでおり、
前記合流流路は第一合流流路と第二合流流路とを含んでおり、
前記貯留部は第一貯留部と第二貯留部とを含んでおり、
前記第一膨張弁は、上流側の前記第一流路に接続された前記第一合流流路を介して前記第一貯留部と連通すると共に、下流側に接続された前記第一流路を介して前記エバポレータに接続されており、
前記第二膨張弁は、上流側の前記第二流路に接続された前記第二合流流路を介して前記第二貯留部と連通すると共に、下流側に接続された前記第二流路を介して前記チラーに接続されており、
前記第一貯留部の容積は前記第二貯留部の容積よりも大きい請求項2に記載の冷却モジュール。
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2024554418A JPWO2024095826A1 (ja) | 2022-10-31 | 2023-10-24 | |
| CN202380068345.8A CN119948301A (zh) | 2022-10-31 | 2023-10-24 | 冷却模块 |
| EP23885586.0A EP4574500A4 (en) | 2022-10-31 | 2023-10-24 | COOLING MODULE |
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| Application Number | Priority Date | Filing Date | Title |
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| JP2022-174328 | 2022-10-31 | ||
| JP2022174328 | 2022-10-31 |
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| EP (1) | EP4574500A4 (ja) |
| JP (1) | JPWO2024095826A1 (ja) |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012251762A (ja) * | 2011-05-10 | 2012-12-20 | Fujitsu General Ltd | 空気調和機 |
| JP2019086256A (ja) * | 2017-11-09 | 2019-06-06 | Phcホールディングス株式会社 | 冷凍装置 |
| JP2021193326A (ja) * | 2020-06-08 | 2021-12-23 | 株式会社デンソー | 冷凍サイクル装置 |
| CN114791183A (zh) * | 2021-01-24 | 2022-07-26 | 浙江三花汽车零部件有限公司 | 流体管理装置 |
| KR20230100312A (ko) * | 2021-12-28 | 2023-07-05 | 현대자동차주식회사 | 기액분리기 및 이를 포함하는 차량용 통합 열관리 시스템의 냉매모듈 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020246791A1 (ko) * | 2019-06-03 | 2020-12-10 | 한온시스템 주식회사 | 열관리 시스템 |
| WO2021049435A1 (ja) * | 2019-09-13 | 2021-03-18 | 株式会社デンソー | 接続モジュール |
| DE102020109006A1 (de) * | 2020-04-01 | 2021-10-07 | OET GmbH | Heiz-/Kühlsystem für ein Fahrzeug, insbesondere für ein Elektro- oder Hybridfahrzeug, Halteelement für ein derartiges Heiz-/Kühlsystem |
-
2023
- 2023-10-24 WO PCT/JP2023/038317 patent/WO2024095826A1/ja not_active Ceased
- 2023-10-24 JP JP2024554418A patent/JPWO2024095826A1/ja active Pending
- 2023-10-24 CN CN202380068345.8A patent/CN119948301A/zh active Pending
- 2023-10-24 EP EP23885586.0A patent/EP4574500A4/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012251762A (ja) * | 2011-05-10 | 2012-12-20 | Fujitsu General Ltd | 空気調和機 |
| JP2019086256A (ja) * | 2017-11-09 | 2019-06-06 | Phcホールディングス株式会社 | 冷凍装置 |
| JP2021193326A (ja) * | 2020-06-08 | 2021-12-23 | 株式会社デンソー | 冷凍サイクル装置 |
| CN114791183A (zh) * | 2021-01-24 | 2022-07-26 | 浙江三花汽车零部件有限公司 | 流体管理装置 |
| KR20230100312A (ko) * | 2021-12-28 | 2023-07-05 | 현대자동차주식회사 | 기액분리기 및 이를 포함하는 차량용 통합 열관리 시스템의 냉매모듈 |
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| Title |
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| Publication number | Publication date |
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| EP4574500A1 (en) | 2025-06-25 |
| EP4574500A4 (en) | 2025-12-24 |
| JPWO2024095826A1 (ja) | 2024-05-10 |
| CN119948301A (zh) | 2025-05-06 |
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