WO2020246421A1 - Soupape de commutation de canal d'écoulement - Google Patents

Soupape de commutation de canal d'écoulement Download PDF

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Publication number
WO2020246421A1
WO2020246421A1 PCT/JP2020/021581 JP2020021581W WO2020246421A1 WO 2020246421 A1 WO2020246421 A1 WO 2020246421A1 JP 2020021581 W JP2020021581 W JP 2020021581W WO 2020246421 A1 WO2020246421 A1 WO 2020246421A1
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WIPO (PCT)
Prior art keywords
flow path
outflow
inflow
switching valve
portions
Prior art date
Application number
PCT/JP2020/021581
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English (en)
Japanese (ja)
Inventor
前田　隆宏
加藤　吉毅
牧原　正径
Original Assignee
株式会社デンソー
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Priority claimed from JP2020094886A external-priority patent/JP7435268B2/ja
Application filed by 株式会社デンソー filed Critical 株式会社デンソー
Publication of WO2020246421A1 publication Critical patent/WO2020246421A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
    • F16K11/052—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with pivoted closure members, e.g. butterfly valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
    • F16K11/072—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members
    • F16K11/076—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members with sealing faces shaped as surfaces of solids of revolution
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/22—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution

Definitions

  • This disclosure relates to a flow path switching valve.
  • the cooling system described in Patent Document 1 includes a heat medium flow path, a battery flow path, an in-vehicle device flow path, and an in-vehicle device bypass flow path.
  • the heat medium flow path is an annular flow path in which cooling water circulates.
  • the first pump, the chiller, the radiator, and the first flow path switching valve are arranged in this order with respect to the flow direction of the cooling water.
  • the battery flow path is provided so as to connect the first flow path switching valve and the downstream portion of the chiller in the heat medium flow path.
  • the chiller is a part that exchanges heat between the cooling water flowing through the heat medium flow path and the heat medium flowing through the refrigeration cycle mounted on the vehicle.
  • a battery mounted on the vehicle is arranged in the battery flow path.
  • the in-vehicle device flow path is provided so as to connect a portion of the heat medium flow path on the upstream side of the radiator and a portion on the downstream side thereof.
  • the second pump, the inverter, the charger, and the motor generator are arranged in this order in the in-vehicle device flow path.
  • the inverter, charger, and motor generator will be referred to as a PCU (Power Control Unit) system.
  • the in-vehicle device bypass flow path is provided so as to connect a portion of the in-vehicle device flow path on the upstream side of the second pump and a portion on the downstream side of the motor generator.
  • a second flow path switching valve is provided at a connection portion between the in-vehicle device flow path and the downstream portion of the in-vehicle device bypass flow path.
  • the first flow path switching valve is a three-way valve, and switches the cooling water flowing through the heat medium flow path between a state in which it flows through the battery flow path and a state in which it does not flow through the battery flow path.
  • the second flow path switching valve is also a three-way valve, and switches between a state in which the cooling water flowing through the in-vehicle device flow path flows through the in-vehicle device bypass flow path and a state in which the cooling water does not flow through the in-vehicle device bypass flow path.
  • the PCU system and the battery are cooled by the cooling water. Further, in the cooling system described in Patent Document 1, the waste heat of the PCU system or the battery is absorbed by the cooling water through the switching operation of the first flow path switching valve and the second flow path switching valve, and then the cooling water is absorbed. A flow path is formed in which heat is transferred to the heat medium of the refrigeration cycle via the chiller. By forming such a flow path, it is possible to use the waste heat of the PCU system or the battery as a heating source of the heat medium.
  • An object of the present disclosure is to provide a flow path switching valve capable of switching a plurality of flow paths with a simple structure.
  • the flow path switching valve includes a main body portion and a partition portion.
  • the main body has two or more inflow parts into which the fluid flows in, and three or more outflow parts from which the fluid flows out, and the inner chamber communicating with all the inflow parts and the outflow parts is inside. Is formed in.
  • the partition portion is arranged in the inner chamber so as to be relatively displaceable with respect to the main body portion, and divides the inner chamber into a plurality of compartments. Due to the relative displacement of the partition portion with respect to the main body portion, the correspondence between the inflow portion and the outflow portion communicated with each of the plurality of compartments is changed.
  • the partition portion is displaced relative to the main body portion, so that the correspondence between the inflow portion and the outflow portion that are communicated with each other via the partition chamber can be changed.
  • the flow path switching valve described above has as many configurations as the number of compartments in which the flow path can be changed.
  • the structure can be simplified by using a flow path switching valve having the above configuration instead of the plurality of three-way valves.
  • FIG. 1 is a block diagram showing a schematic configuration of the cooling system of the first embodiment.
  • FIG. 2 is a perspective view showing a perspective structure of the flow path switching valve of the first embodiment.
  • FIG. 3 is a perspective view showing an exploded perspective structure of the flow path switching valve of the first embodiment.
  • FIG. 4 is a cross-sectional view showing a cross-sectional structure taken along the line IV-IV of FIG.
  • FIG. 5 is a cross-sectional view showing an operation example of the flow path switching valve of the first embodiment.
  • FIG. 6 is a cross-sectional view showing an operation example of the flow path switching valve of the first embodiment.
  • FIG. 7 is a block diagram showing an electrical configuration of the cooling system of the first embodiment.
  • FIG. 8 is a block diagram showing an operation example of the cooling system of the first embodiment.
  • FIG. 9 is a block diagram showing an operation example of the cooling system of the first embodiment.
  • FIG. 10 is a block diagram showing a schematic configuration of the cooling system of the second embodiment.
  • FIG. 11 is a perspective view showing a perspective structure of the flow path switching valve of the second embodiment.
  • FIG. 12 is a perspective view showing an exploded perspective structure of the flow path switching valve of the second embodiment.
  • FIG. 13 is a cross-sectional view showing a cross-sectional structure along the line XIII-XIII of FIG.
  • FIG. 14 is a cross-sectional view showing an operation example of the flow path switching valve of the second embodiment.
  • FIG. 15 is a cross-sectional view showing an operation example of the flow path switching valve of the second embodiment.
  • FIG. 16 is a cross-sectional view showing an operation example of the flow path switching valve of the second embodiment.
  • FIG. 17 is a block diagram showing an operation example of the cooling system of the second embodiment.
  • FIG. 18 is a block diagram showing an operation example of the cooling system of the second embodiment.
  • FIG. 19 is a block diagram showing an operation example of the cooling system of the second embodiment.
  • FIG. 20 is a cross-sectional view showing a cross-sectional structure of a flow path switching valve of another embodiment.
  • the flow path switching valve 40 of the first embodiment shown in FIG. 1 will be described.
  • the flow path switching valve 40 of this embodiment is used in the cooling system 10 mounted on the vehicle.
  • the cooling system 10 is a system that cools the PCU system 20 and the battery 21 of the vehicle with cooling water.
  • the PCU system refers to electrical equipment such as a transaxle, a motor generator, and an inverter circuit mounted on a vehicle.
  • the cooling water corresponds to the fluid.
  • the cooling system 10 includes a first pump 11, a chiller 12, a radiator 13, a reserve tank 14, a flow control valve 15, a second pump 16, and an on-off valve 17. ing.
  • the first pump 11, the chiller 12, the flow path switching valve 40, the radiator 13, and the reserve tank 14 are provided in the flow path W10 formed in an annular shape in this order.
  • the first pump 11 sucks the cooling water flowing through the annular flow path W10 and discharges it to the chiller 12 to circulate the cooling water in the annular flow path W10.
  • cooling is performed in the direction indicated by the arrow in the figure, that is, in the order of the first pump 11, the chiller 12, the flow path switching valve 40, the battery 21, the flow path switching valve 40, the radiator 13, and the reserve tank 14. Water is circulating.
  • the first pump 11 is an electric pump that is driven based on the electric power supplied from the battery 21.
  • the chiller 12 is a portion that exchanges heat between the heat medium that circulates in the heat pump cycle 18 mounted on the vehicle and the cooling water that flows in the annular flow path W10.
  • the heat pump cycle 18 is one of the components of the air conditioner of the vehicle, and cools or heats the air conditioner air by exchanging heat between the air conditioner air flowing in the air conditioner duct of the air conditioner and the heat medium. It is a system.
  • the air conditioner cools or heats the vehicle interior by blowing air-conditioned air cooled or heated through the heat pump cycle 18 into the vehicle interior through an air conditioning duct.
  • the flow paths W21 to W25 are connected to the flow path switching valve 40.
  • the flow path switching valve 40 is provided to switch the connection state of the flow paths W21 to W25.
  • the flow path switching valve 40 includes a main body 41, a rotary valve 42 housed inside the main body 41, and an actuator device 43 grounded on the upper surface of the main body 41. It has.
  • the main body 41 is formed in a cylindrical shape about the axis m.
  • An inner chamber 410 is formed inside the main body 41.
  • inflow portions 44a and 44b into which the cooling water flows in and outflow portions 45a to 45c in which the cooling water flows out are formed.
  • the inflow portions 44a and 44b and the outflow portions 45a to 45c are arranged so as to be substantially equiangularly spaced in the circumferential direction centered on the axis m.
  • the inflow portions 44a and 44b and the outflow portions 45a to 45c are communicated with the inner chamber 410. Cooling water flows into the inner chamber 410 through the inflow portions 44a and 44b.
  • the cooling water that has flowed into the inner chamber 410 is discharged from the outflow portions 45a to 45c to the outside of the main body portion 41.
  • the rotary valve 42 is formed in a cylindrical shape about the axis m.
  • the rotary valve 42 is arranged so that its outer peripheral surface slidably contacts the inner peripheral surface of the main body 41. Therefore, the rotary valve 42 can be displaced relative to the main body 41, and more specifically, can be displaced relative to the main body 41 in the rotation direction about the axis m.
  • a plate-shaped partition portion 426 is formed inside the rotary valve 42 so as to pass through the central axis m thereof. As shown in FIG. 4, the partition portion 426 divides the internal space of the rotary valve 42 into the first compartment 411 and the second compartment 412.
  • a notch 427a for communicating the inner chamber 410 of the main body 41 with the first compartment 411, and an inner chamber 410 of the main body 41 for communicating with the second compartment 412.
  • a notch 427b is formed.
  • the closed portions 420 and 421 are formed by leaving a part of the outer peripheral wall of the rotary valve 42 without being cut out at the portions corresponding to both ends of the notch 427b in the circumferential direction.
  • the closing portions 420 and 421 are arranged so as to extend from both ends of the partition portion 426 along the inner wall surface of the main body portion 41.
  • the actuator device 43 shown in FIGS. 2 and 3 is composed of a motor or the like. As shown in FIG. 3, the actuator device 43 rotates the rotary valve 42 by applying torque in the rotation direction about the axis m to the input shaft 428 provided on the upper surface of the rotary valve 42. As the rotation positions of the closing portions 420 and 421 change with the rotation of the rotary valve 42, the outflow portions 45a to 45c are opened and closed, and the connection state between the inflow portions 44a and 44b and the outflow portions 45a to 45c changes. To do.
  • the outflow portion 45c is closed by the closing portion 420, but the inflow portions 44a and 44b and the outflow portions 45a and 45b are closed.
  • the inflow portion 44a is connected to the outflow portion 45b via the first compartment 411. Therefore, the cooling water flowing in from the inflow portion 44a is discharged from the outflow portion 45b.
  • the inflow portion 44b is connected to the outflow portion 45a via the second compartment 412. Therefore, the cooling water that has flowed in from the inflow section 44b is discharged from the outflow section 45b.
  • the outflow portion 45a is closed by the closing portion 421, but the inflow portions 44a and 44b and the outflow portions 45b and 45c are not closed. ..
  • the inflow portion 44a is connected to the outflow portion 45b via the first compartment 411. Therefore, the cooling water flowing in from the inflow portion 44a is discharged from the outflow portion 45b.
  • the inflow portion 44b is connected to the outflow portion 45c via the second compartment 412. Therefore, the cooling water flowing in from the inflow portion 44b is discharged from the outflow portion 45c.
  • the outflow portion 45b is closed by the closing portion 420, but the inflow portions 44a and 44b and the outflow portions 45a and 45c are not closed. ..
  • the inflow portion 44a is connected to the outflow portion 45a via the first compartment 411. Therefore, the cooling water flowing in from the inflow portion 44a is discharged from the outflow portion 45a.
  • the inflow portion 44b is connected to the outflow portion 45c via the second compartment 412. Therefore, the cooling water flowing in from the inflow portion 44b is discharged from the outflow portion 45c.
  • the rotary valve 42 is rotationally displaced as shown in FIGS. 4 to 6, so that the inflow portions 44a and 44b are connected to the outflow portions 45a to 45c. It is possible to change. As shown in FIG. 1, the inflow portions 44a and 44b of the flow path switching valve 40 are connected to the flow paths W21 and W24 of the cooling system 10, respectively. Further, the outflow portions 45a to 45c of the flow path switching valve 40 are connected to the flow paths W22, W23, and W25 of the cooling system 10, respectively.
  • the flow path W21 is a part of the annular flow path W10 and is a flow path connecting the chiller 12 and the flow path switching valve 40.
  • the flow path W22 is also a part of the annular flow path W10, and is a flow path connecting the flow path switching valve 40 and the radiator 13.
  • the flow paths W23 and W24 are flow paths that connect the flow path switching valve 40 and the battery 21.
  • the flow path W23 is used as a flow path for supplying cooling water from the flow path switching valve 40 to the battery 21.
  • the flow path W24 is used as a flow path for returning the cooling water that has passed through the battery 21 to the flow path switching valve 40.
  • the flow path W25 is a flow path that connects the upstream portion of the first pump 11 in the annular flow path W10 and the flow path switching valve 40. As shown in FIGS. 4 to 6, the flow path switching valve 40 changes the connection state between the inflow portions 44a and 44b and the outflow portions 45a to 45c, thereby changing the connection state of the flow paths W21 to W25 of the cooling system 10. Is to switch.
  • the radiator 13 is a part that exchanges heat between the cooling water flowing inside the radiator 13 and the outside air.
  • the cooling water discharged from the radiator 13 flows into the reserve tank 14.
  • the reserve tank 14 temporarily stores the cooling water discharged from the radiator 13.
  • the cooling water stored in the reserve tank 14 is sucked into the first pump 11.
  • the upstream portion of the radiator 13 in the annular flow path W10 is connected to the downstream side portion of the reserve tank 14 through the branch flow path W30.
  • a flow control valve 15, a second pump 16, and a PCU system 20 are arranged in the branch flow path W30.
  • the flow control valve 15 adjusts the flow rate of the cooling water flowing into the branch flow path W30 from the downstream portion of the reserve tank 14 in the annular flow path W10.
  • the second pump 16 sucks the cooling water flowing through the branch flow path W30 and discharges it to the PCU system 20 to circulate the cooling water through the branch flow path W30.
  • the cooling water circulates in the order of the flow control valve 15, the second pump 16, and the PCU system 20 from the downstream portion of the reserve tank 14 in the annular flow path W10.
  • the second pump 16 is an electric pump that is driven based on the electric power supplied from the battery 21.
  • the cooling water that has passed through the PCU system 20 is returned to the upstream portion of the radiator 13 in the annular flow path W10 through the branch flow path W30.
  • heat exchange is performed between the cooling water and the PCU system 20, so that the heat of the PCU system 20 is absorbed by the cooling water and the PCU system 20 is cooled. ..
  • the branch flow path W30 is provided with a bypass flow path W31 so as to connect a portion on the downstream side of the flow control valve 15 and a portion on the downstream side of the PCU system 20.
  • the bypass flow path W31 is provided with an on-off valve 17 for opening and closing the flow path W31.
  • the cooling system 10 further includes an ECU (Electronic Control Unit) 30 for controlling its operation.
  • the ECU 30 is mainly composed of a microcomputer having a CPU, a storage device, and the like, and executes various controls of the cooling system 10 by executing a program stored in the storage device.
  • a sensor group 31 for detecting various state quantities of the vehicle used for controlling the cooling system 10 is connected to the ECU 30.
  • the sensor group 31 includes a temperature sensor that detects the temperature of the battery 21 and the PCU system 20.
  • the ECU 30 controls the operations of the first pump 11, the flow path switching valve 40, the flow control valve 15, the second pump 16, and the on-off valve 17 based on various state quantities detected by the sensor group 31.
  • the cooling system 10 is operated in a plurality of operation modes.
  • the ECU 30 independently controls the PCU system 20 and the chiller 12 and the battery 21. First, the control of the former PCU system 20 will be described.
  • the ECU 30 cools and warms the PCU system 20 by changing the open / closed states of the flow control valve 15 and the on-off valve 17 based on the temperature of the PCU system 20 detected through the sensor group 31. Specifically, when the temperature of the PCU system 20 is equal to or higher than a predetermined temperature threshold value, the ECU 30 sets the on-off valve 17 to a closed state and sets the opening degree of the flow control valve 15 to a predetermined opening degree. To do. As a result, the cooling water that has flowed into the branch flow path W30 from the downstream portion of the reserve tank 14 in the annular flow path W10 is supplied to the PCU system 20 through the flow control valve 15 and the second pump 16. Therefore, the PCU system 20 is cooled by the cooling water.
  • the ECU 30 sets the on-off valve 17 to the open state and the flow control valve 15 to the closed state.
  • the cooling water discharged from the second pump 16 circulates in the branch flow path W30 and the bypass flow path W31 in a ring shape. Therefore, the cooling water that has passed through the PCU system 20 is returned to the PCU system 20 again through the branch flow path W30 and the bypass flow path W31, and absorbs the heat of the PCU system 20. Therefore, the cooling water circulating in the branch flow path W30 and the bypass flow path W31 is gradually heated. Therefore, the PCU system 20 is warmed up.
  • the ECU 30 adjusts the temperature of the PCU system 20 to the vicinity of the temperature threshold value by cooling and warming up the PCU system 20 through the opening / closing control of each of the flow control valve 15 and the on-off valve 17.
  • the ECU 30 switches the operation mode of the cooling system 10 to any one of the first battery cooling mode, the second battery cooling mode, and the outside air heat absorption mode as the control for the chiller 12 and the battery 21.
  • the details of each mode are as follows.
  • the first battery cooling mode is a mode in which the battery 21 is cooled by using the cooling water cooled by the outside air.
  • the ECU 30 controls the actuator device 43 of the flow path switching valve 40 in the first battery cooling mode to show the position of the rotary valve 42 of the flow path switching valve 40 in FIG. Set to the position where As a result, as shown in FIG. 1, the cooling water that has passed through the chiller 12 flows into the inflow portion 44a of the flow path switching valve 40 through the flow path W21, and then is discharged from the outflow portion 45b of the flow path switching valve 40. Is supplied to the battery 21 through the flow path W23.
  • the cooling water that has passed through the battery 21 flows into the inflow portion 44b of the flow path switching valve 40 through the flow path W24, is discharged from the outflow portion 45a of the flow path switching valve 40, and is discharged to the radiator 13 through the flow path W22. Be supplied. Since the outflow portion 45c of the flow path switching valve 40 is closed, the cooling water does not flow into the flow path W25.
  • the flow of the heat medium that circulates in the chiller 12 is not formed in the heat pump cycle 18. Therefore, the cooling water cooled by the radiator 13 is supplied to the battery 21 without exchanging heat with the heat medium of the heat pump cycle 18 when passing through the chiller 12.
  • the second battery cooling mode is a mode in which the battery 21 is cooled by using the cooling water cooled by the heat medium of the heat pump cycle 18.
  • the ECU 30 controls the actuator device 43 of the flow path switching valve 40 in the second battery cooling mode to show the position of the rotary valve 42 of the flow path switching valve 40 in FIG. Set to the position where As a result, as shown in FIG. 8, the cooling water that has passed through the chiller 12 flows into the inflow portion 44a of the flow path switching valve 40 through the flow path W21, and then is discharged from the outflow portion 45b of the flow path switching valve 40. Is supplied to the battery 21 through the flow path W23.
  • the cooling water that has passed through the battery 21 flows into the inflow portion 44b of the flow path switching valve 40 through the flow path W24, and then is discharged from the outflow portion 45c of the flow path switching valve 40 to form the flow path W25 and the annular flow path. It is sucked into the first pump 11 through W10. Since the outflow portion 45a of the flow path switching valve 40 is closed, the cooling water does not flow into the flow path W22.
  • a flow path as shown by an arrow in FIG. 8 is formed. That is, the cooling water flows in the order of "first pump 11-> chiller 12-> flow path switching valve 40-> battery 21-> flow path switching valve 40-> first pump 11-> ".
  • the cooling water is cooled by heat exchange between the heat medium flowing through the heat pump cycle 18 and the cooling water flowing through the annular flow path W10.
  • the battery 21 is cooled by supplying the cooling water cooled in the chiller 12 to the battery 21.
  • the battery 21 is cooled by using the cooling water cooled in the chiller 12, in other words, using the cooling water cooled by the heat medium circulating in the heat pump cycle 18. Will be done.
  • A3 Outside air endothermic mode is a mode in which the heat medium of the heat pump cycle 18 is heated by utilizing the heat absorbed by the cooling water from the outside air.
  • the ECU 30 controls the actuator device 43 of the flow path switching valve 40 in the outside air endothermic mode to determine the position of the rotary valve 42 of the flow path switching valve 40 as shown in FIG. Set to.
  • the cooling water that has passed through the chiller 12 flows into the inflow portion 44a of the flow path switching valve 40 through the flow path W21, and then is discharged from the outflow portion 45a of the flow path switching valve 40. Is supplied to the radiator 13 through the flow path W22.
  • the outflow portion 45b since the outflow portion 45b is blocked, the cooling water does not flow through the flow paths W23 to W25.
  • the flow path as shown in FIG. 9 is formed in the cooling system 10. That is, the cooling water flows in the order of "first pump 11-> chiller 12-> flow path switching valve 40-> radiator 13-> reserve tank 14-> first pump 11-> ". As a result, the cooling water that has absorbed the heat of the outside air in the radiator 13 is supplied to the chiller 12. In the chiller 12, heat exchange is performed between the cooling water supplied through the annular flow path W10 and the heat medium circulating in the heat pump cycle 18, so that the heat medium is heated by the heat of the cooling water. The heat pump cycle 18 heats the conditioned air by exchanging heat between the heat medium whose temperature has risen due to heating and the conditioned air flowing through the conditioned duct.
  • the cooling water heated by the radiator 13 is used, in other words, the cooling water heated by the outside air is used to heat the heat medium of the heat pump cycle 18.
  • the flow path switching valve 40 of the present embodiment described above the actions and effects shown in the following (1) to (6) can be obtained.
  • the partition portion 426 When the partition portion 426 is displaced relative to the main body portion 41, the correspondence between the inflow portions 44a and 44b and the outflow portions 45a to 45c which are communicated with each other via the partition chambers 411 and 412 can be changed. it can. Further, it is possible to change the correspondence between the inflow portions 44a and 44b and the outflow portions 45a to 45c in the compartments 411 and 412, respectively. Therefore, the flow path switching valve 40 has as many configurations as the number of partition chambers 411 and 412 that can change the flow path. As a result, the flow path switching valve 40 can switch the flow path corresponding to the two three-way valves.
  • the structure can be simplified by using the flow path switching valve 40 of the present embodiment instead of the two three-way valves. Further, as compared with the case where two three-way valves are used, the control target of the ECU 30 is one flow path switching valve 40, so that the processing load of the ECU 30 can be reduced.
  • the flow path switching valve 40 is further provided with closing portions 420 and 421 that are displaced integrally with the partition portion 426 and close one of the three outflow portions 45a to 45c. According to such a configuration, it is possible to block one of the plurality of flow paths W22, W23, and W25 connected to the flow path switching valve 40, which is more complicated in the cooling system 10. Can be realized.
  • the inflow section 44b and the outflow section 45b are connected in series through the external flow paths W23 and W24. Therefore, in the flow path switching valve 40 of the present embodiment, the inflow portion 44b corresponds to the series inflow portion, and the outflow portion 45b corresponds to the series outflow portion. As shown in FIG. 6, the inflow portion 44b is communicated with the outflow portion 45c different from the outflow portion 45b through the partition chamber 412.
  • the blocking portion 420 blocks the flow of cooling water from the inflow portion 44b to the outflow portion 45c via the partition chamber 412 by closing the outflow portion 45b. According to such a configuration, since the pressure of the cooling water is applied to the closed portion 420 in the direction from the inner chamber 410 toward the outflow portion 45b, the closed portion 420 can more reliably close the outflow portion 45b. Become.
  • the outflow portion 45a is provided between the inflow portion 44a and the inflow portion 44b.
  • the partition portion 426 is displaced relative to the main body portion 41 so that the cooling water that has flowed into the first compartment 411 through the inflow portion 44a is discharged from the outflow portion 45a as shown in FIG.
  • the state is switched between the state in which the cooling water flowing into the second compartment 412 through the inflow portion 44b is discharged from the outflow portion 45a.
  • the outflow portion 45a as a common outflow portion for the inflow portion 44a and the inflow portion 44b, it is possible to reduce the number of outflow portions.
  • the inflow portion 44a corresponds to the first inflow portion
  • the inflow portion 44b corresponds to the second inflow portion.
  • outflow portions 45a and 45b are provided on both sides of the inflow portion 44a.
  • the inflow portion 44a corresponds to a predetermined inflow portion
  • the outflow portion 45a corresponds to the first outflow portion
  • the outflow portion 45b corresponds to the second outflow portion.
  • the first angle formed by the position of the inflow portion 44a and the position of the outflow portion 45a is set to " ⁇ 11" in the circumferential direction centered on the axis m
  • the second angle formed by the position of the inflow portion 44a and the position of the outflow portion 45b When is set to " ⁇ 12", the first angle ⁇ 11 and the second angle ⁇ 12 are set to the same angle.
  • the outflow portions 45a and 45b are arranged symmetrically with respect to the inflow portion 44a. Therefore, the state in which the outflow portion 45a is blocked by the closing portion 421 as shown in FIG. 5 is the first state, and the state in which the outflow portion 45b is blocked by the closing portion 420 as shown in FIG. 6 is the first state.
  • the two states are set, the amount of rotational displacement of the partition portion 426 when transitioning from the first state to the second state and the amount of rotational displacement of the partition portion 426 when transitioning from the second state to the first state are substantially the same. It becomes the amount of rotational displacement of. Therefore, it is possible to easily switch the connection state between the inflow portion 44a and the outflow portions 45a and 45b. The same applies to the inflow portion 44b and the outflow portions 45a and 45c.
  • the cooling system 10 of the present embodiment includes a first radiator 13a and a second radiator 13b.
  • the first radiator 13a, the first pump 11, the chiller 12, the battery 21, and the flow path switching valve 40 are provided in the flow path W40 formed in an annular shape in this order.
  • the second radiator 13b, the second pump 16, the PCU system 20, and the flow path switching valve 40 are provided in the flow path W50 formed in an annular shape in this order.
  • the flow paths W61 to W66 are connected to the flow path switching valve 40.
  • the flow path switching valve 40 is provided to switch the connection state of the flow paths W61 to W66. In FIG. 10, the heat pump cycle 18 is not shown.
  • an inflow / outflow portion 46 into which the cooling water flows in or out is formed on the outer peripheral surface of the main body portion 41.
  • the outer peripheral wall of the rotary valve 42 has notches 427c and 427d for communicating the inner chamber 410 of the main body 41 with the first compartment 411, and the inside of the main body 41. Notches 427e to 427h for communicating the chamber 410 with the second compartment 412 are formed.
  • a portion of the outer peripheral wall of the rotary valve 42 provided between the notches 427c and 427d constitutes a closed portion 420 to 425.
  • the closing portions 420 to 425 rotate integrally with the partition portion 426.
  • the inflow portion 44b, the outflow portion 45a to 45c, and the outflow / inflow portion 46 are opened and closed according to the rotational displacement of the closing portions 420 to 425.
  • the outflow portion 45b is blocked by the closing portion 422 and the outflow portion 45c is blocked by the closing portion 424, but the inflow The portions 44a and 44b, the outflow portion 45a, and the inflow / outflow portion 46 are not closed.
  • the inflow portion 44a is connected to the outflow portion 45a via the first compartment 411. Therefore, the cooling water flowing in from the inflow portion 44a is discharged from the outflow portion 45a.
  • the inflow section 44b is connected to the inflow / outflow section 46 via the second compartment 412. Therefore, the cooling water flowing in from the inflow section 44b is discharged from the inflow / outflow section 46.
  • the outflow portion 45a is blocked by the closing portion 422 and the outflow / inflow portion 46 is blocked by the closing portion 424, but the inflow portion 44a, The 44b and the outflow portions 45b and 45c are not blocked.
  • the inflow portion 44a is connected to the outflow portion 45b via the first compartment 411. Therefore, the cooling water flowing in from the inflow portion 44a is discharged from the outflow portion 45b.
  • the inflow portion 44b is connected to the outflow portion 45c via the second compartment 412. Therefore, the cooling water flowing in from the inflow portion 44b is discharged from the outflow portion 45c.
  • the outflow portion 45a is blocked by the closing portion 422 and the outflow portion 45c is blocked by the closing portion 425, but the inflow portion 44a, The 44b, the outflow section 45b, and the outflow / inflow section 46 are not blocked.
  • the inflow portion 44a is connected to the outflow portion 45b via the first compartment 411. Therefore, the cooling water flowing in from the inflow portion 44a is discharged from the outflow portion 45b.
  • the inflow section 44b is connected to the inflow / outflow section 46 via the second compartment 412. Therefore, the cooling water flowing in from the inflow section 44b is discharged from the inflow / outflow section 46.
  • the inflow portion 44b is closed by the closing portion 423, but the inflow portion 44a, the outflow portions 45a to 45c, and the outflow / inflow portion 46 are closed.
  • the inflow portion 44a is connected to the outflow portions 45a and 45b via the first compartment 411. Therefore, the cooling water flowing in from the inflow portion 44a is discharged from the outflow portions 45a and 45b.
  • the outflow / inflow section 46 is connected to the outflow section 45c via the second compartment 412. Therefore, the cooling water flowing in from the inflow / outflow section 46 is discharged from the outflow section 45c.
  • the rotary valve 42 is rotationally displaced as shown in FIGS. 13 to 16, so that the inflow portions 44a and 44b, the outflow portions 45a to 45c, and the outflow and inflow portions are It is possible to change the connection state of the 46.
  • the inflow portions 44a and 44b of the flow path switching valve 40 are connected to the flow paths W61 and W64 of the cooling system 10, respectively.
  • the outflow portions 45a to 45c of the flow path switching valve 40 are connected to the flow paths W62, W66, and W65 of the cooling system 10, respectively.
  • the inflow / outflow portion 46 of the flow path switching valve 40 is connected to the flow path W63 of the cooling system 10.
  • the flow path W61 is a part of the annular flow path W40 and is a flow path connecting the battery 21 and the flow path switching valve 40.
  • the flow path W62 is also a part of the annular flow path W40, and is a flow path connecting the flow path switching valve 40 and the first radiator 13a.
  • the flow path W63 is a part of the annular flow path W50 and is a flow path connecting the flow path switching valve 40 and the second radiator 13b.
  • the flow path W64 is also a part of the annular flow path W50 and is a flow path connecting the PCU system 20 and the flow path switching valve 40.
  • the flow path W65 is a flow path that connects the upstream portion of the first pump 11 in the annular flow path W40 and the flow path switching valve 40.
  • the flow path W66 is a flow path that connects the upstream portion of the second pump 16 in the annular flow path W50 and the flow path switching valve 40.
  • the flow path W65 and the flow path W66 are connected to each other via
  • the ECU 30 of the present embodiment operates the cooling system 10 in any of the operation modes of the first cooling mode, the second cooling mode, the third cooling mode, and the warm-up mode.
  • the details of each mode are as follows.
  • the first cooling mode is a mode in which the PCU system 20 and the battery 21 are cooled by using the cooling water cooled by the outside air.
  • the position of the rotary valve 42 of the flow path switching valve 40 is shown in FIG. 13 by controlling the actuator device 43 of the flow path switching valve 40. Set to position.
  • the cooling water that has passed through the battery 21 flows into the inflow portion 44a of the flow path switching valve 40 through the flow path W61, and then is discharged from the outflow portion 45a of the flow path switching valve 40. Is supplied to the first radiator 13a through the flow path W62.
  • the cooling water that has passed through the PCU system 20 flows into the inflow portion 44b of the flow path switching valve 40 through the flow path W64, is discharged from the inflow / outflow portion 46 of the flow path switching valve 40, and is second through the flow path W63. It is supplied to the radiator 13b. Since the outflow portions 45b and 45c of the flow path switching valve 40 are closed, the cooling water does not flow through the flow paths W65 and W66.
  • a flow of cooling water as shown by an arrow in FIG. 10 is formed. That is, a flow of cooling water flowing in the order of "first pump 11-> chiller 12-> battery 21-> flow path switching valve 40-> first radiator 13a-> first pump 11-> " is formed. Further, a flow of cooling water flowing in the order of "second pump 16-> PCU system 20-> flow path switching valve 40-> second radiator 13b-> second pump 16-> " is formed. Therefore, the cooling water cooled in the first radiator 13a is supplied to the battery 21 to cool the battery 21, and the cooling water cooled in the second radiator 13b is supplied to the PCU system 20 to supply the PCU. The system 20 is cooled.
  • the flow of the heat medium that circulates in the chiller 12 is not formed in the heat pump cycle. Therefore, the cooling water cooled in the radiator 13 is supplied to the battery 21 without exchanging heat with the heat medium of the heat pump cycle when passing through the chiller 12.
  • the cooling water cooled by the first radiator 13a and the second radiator 13b is used, in other words, the cooling water cooled by the outside air is used to use the PCU system 20 and the battery 21. Is cooled.
  • B2 Warm-up mode The warm-up mode is a mode in which the battery 21 is warmed up by utilizing the waste heat of the PCU system 20.
  • the ECU 30 controls the actuator device 43 of the flow path switching valve 40 to determine the position of the rotary valve 42 of the flow path switching valve 40 as shown in FIG. Set to.
  • the cooling water that has passed through the battery 21 flows into the inflow portion 44a of the flow path switching valve 40 through the flow path W61, and then is discharged from the outflow portion 45b of the flow path switching valve 40. Then, it is sucked into the second pump 16 through the flow path W66.
  • the cooling water that has passed through the PCU system 20 flows in from the inflow portion 44b of the flow path switching valve 40 through the flow path W64, then is discharged from the outflow portion 45c of the flow path switching valve 40, and is first through the flow path W65. It is sucked into the pump 11. Since the outflow portion 45a and the outflow / inflow portion 46 of the flow path switching valve 40 are closed, the cooling water does not flow into the flow path W62 and the flow path W63. Further, since the flow rate of the cooling water flowing through the flow path W65 and the flow rate of the cooling water flowing through the flow path W66 are adjusted to substantially the same flow rate, the flow paths W65 and the flow path W66 pass through the bypass flow path W67. A flow of cooling water flowing between them is not formed, or it is difficult to form such a flow of cooling water.
  • the second cooling mode is a mode in which the battery 21 is cooled by using the cooling water cooled by the heat medium of the heat pump cycle, and the PCU system 20 is cooled by using the outside air.
  • the position of the rotary valve 42 of the flow path switching valve 40 is shown in FIG. 15 by controlling the actuator device 43 of the flow path switching valve 40. Set to position.
  • the cooling water that has passed through the battery 21 flows into the inflow portion 44a of the flow path switching valve 40 through the flow path W61, and then is discharged from the outflow portion 45b of the flow path switching valve 40. Then, it is supplied to the first pump 11 through the flow path W66, the bypass flow path W67, and the downstream portion of the flow path W65.
  • the cooling water that has passed through the PCU system 20 flows into the inflow section 44b of the flow path switching valve 40 through the flow path W64, is discharged from the inflow / outflow section 46, and is supplied to the second radiator 13b through the flow path W63. .. Since the outflow portions 45a and 45c of the flow path switching valve 40 are closed, the cooling water does not flow to the upstream portions of the flow path W62 and the flow path W65.
  • a flow of cooling water as shown by an arrow in FIG. 18 is formed. That is, the flow of the cooling water flowing in the order of "first pump 11-> chiller 12-> battery 21-> flow path switching valve 40-> first pump 11-> ! is formed. Further, a flow of cooling water flowing in the order of "second pump 16-> PCU system 20-> flow path switching valve 40-> second radiator 13b-> second pump 16-> ! is formed.
  • the cooling water is cooled by heat exchange between the heat medium flowing through the heat pump cycle and the cooling water supplied from the first pump 11.
  • the battery 21 is cooled by supplying the cooling water cooled in the chiller 12 to the battery 21.
  • the PCU system 20 is cooled by supplying the cooling water cooled by the second radiator 13b to the PCU system 20.
  • the battery 21 is cooled by using the cooling water cooled in the chiller 12, in other words, using the refrigerant flowing through the heat pump cycle. Further, the cooling water cooled by the second radiator 13b is used, in other words, the outside air is used to cool the PCU system 20.
  • the third cooling mode is a mode in which the battery 21 is cooled by using the first radiator 13a and the second radiator 13b.
  • the position of the rotary valve 42 of the flow path switching valve 40 is shown in FIG. 16 by controlling the actuator device 43 of the flow path switching valve 40. Set to position.
  • the cooling water that has passed through the battery 21 flows into the inflow portion 44a of the flow path switching valve 40 through the flow path W61, and then the outflow portion 45a and the outflow portion of the flow path switching valve 40. It is discharged from 45b.
  • the cooling water discharged from the outflow portion 45a is supplied to the first radiator 13a.
  • the cooling water discharged from the outflow portion 45b is supplied to the second radiator 13b. Further, the cooling water that has passed through the second radiator 13b flows into the inflow / outflow portion 46 of the flow path switching valve 40 through the flow path W63, is discharged from the outflow portion 45c of the flow path switching valve 40, and is discharged through the flow path W65. It is supplied to 1 pump 11. Since the flow rate of the cooling water flowing through the flow path W65 and the flow rate of the cooling water flowing through the flow path W66 are substantially the same flow rate, they flow between the flow path W65 and the flow path W66 via the bypass flow path W67. Such a flow of cooling water is not formed, or it is difficult to form such a flow of cooling water.
  • a flow of cooling water as shown by an arrow in FIG. 19 is formed in the cooling system 10. That is, a flow of cooling water flowing in the order of "first pump 11-> chiller 12-> battery 21-> flow path switching valve 40-> first radiator 13a-> first pump 11-> " is formed. In addition, a flow of cooling water flowing in the order of "first pump 11-> chiller 12-> battery 21-> flow path switching valve 40-> second radiator 13b-> flow path switching valve 40-> first pump 11-> " is also formed. Will be done. Therefore, the cooling water cooled in the first radiator 13a and the second radiator 13b is supplied to the battery 21, so that the cooling water cools the battery 21.
  • the battery 21 is cooled by using the two radiators 13a and 13b.
  • the cooling system 10 of the present embodiment described above the actions and effects shown in the following (7) to (10) can be obtained.
  • the structure can be simplified by using the flow path switching valve 40 of the present embodiment instead of the two three-way valves. Further, as compared with the case where two three-way valves are used, the control target of the ECU 30 is one flow path switching valve 40, so that the processing load of the ECU 30 can be reduced.
  • the flow path switching valve 40 is displaced integrally with the partition portion 426, and further closes portions 420 to 425 that block any of the inflow portion 44b, the outflow portion 45a to 45c, and the outflow / inflow portion 46. I have. According to such a configuration, it is possible to block one or a plurality of flow paths among the plurality of flow paths W62 to W66 connected to the flow path switching valve 40, so that the cooling system 10 can be used. It is possible to realize a complicated flow path.
  • the main body 41 is provided with an inflow / outflow section 46 that functions as an inflow section and an outflow section. According to such a configuration, it is possible to realize a more complicated flow path in the cooling system 10.
  • the flow path switching valve 40 includes a first compartment 411 that communicates one inflow portion 44a and a plurality of outflow portions 45a and 45b. According to such a configuration, as shown in FIG. 19, the cooling water flowing in from the inflow portion 44a is connected to the flow path W62 connected to the outflow portion 45a and the flow path W66 connected to the outflow portion 45b. It is possible to realize a flow that branches.
  • each embodiment can also be implemented in the following embodiments.
  • the positions of the inflow portions 44a and 44b and the outflow portions 45a to 45c may be appropriately changed.
  • the positions of the inflow portions 44a and 44b are the same when the flow path switching valve 40 is viewed from the direction perpendicular to the paper surface of FIG. 4, the positions of the inflow portions 44a and 44b are displaced in the direction parallel to the axis m. You may be. The same applies to the flow path switching valve 40 of the second embodiment.
  • the partition portion 426 of the rotary valve 42 is not limited to a plate shape, and may be formed in a prismatic shape having a predetermined thickness.
  • the rotary valve 42 may be composed of a cylindrical member that is slidably in contact with the inner wall surface of the main body 41.
  • the rotary valve 42 is made of a cylindrical member, if a plurality of flow paths to which the inflow portions 44a and 44b, the outflow portions 45a to 45c, and the inflow and outflow portions 46 can be connected are formed in the rotary valve 42, each implementation is carried out. It is possible to have the same or similar action and effect as the rotary valve 42 of the form.
  • the rotary valve 42 may not be provided with the closing portions 420 and 421. Further, in the flow path switching valve 40 of the second embodiment, the rotary valve 42 may not be provided with the closing portions 420 to 425. -The flow path switching valve 40 may have three or more inflow portions and four or more outflow portions. Further, the partition portion 426 of the rotary valve 42 may partition the inner chamber 410 of the main body portion 41 into three or more compartments.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Multiple-Way Valves (AREA)

Abstract

La présente invention concerne une soupape de commutation de canal d'écoulement (40) pourvue d'une partie corps (41) et d'une partie de séparation (426). La partie corps comprend : deux entrées ou plus (44a, 44b) à travers lesquelles de l'eau de refroidissement entre ; et trois sorties ou plus (45a-45c) à travers lesquelles l'eau de refroidissement sort. La partie corps présente en son sein une chambre interne (410) qui est raccordée à l'ensemble des entrées et sorties. La partie de séparation est disposée à l'intérieur de la chambre interne de façon à pouvoir être déplacée par rapport à la partie corps, et sépare la chambre interne en une pluralité de chambres compartimentées (411, 412). Un déplacement de la partie de séparation par rapport à la partie corps entraîne un changement des relations de correspondance entre les entrées et les sorties qui sont raccordées par l'intermédiaire des chambres compartimentées.
PCT/JP2020/021581 2019-06-07 2020-06-01 Soupape de commutation de canal d'écoulement WO2020246421A1 (fr)

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JP2019106927 2019-06-07
JP2019-106927 2019-06-07
JP2020094886A JP7435268B2 (ja) 2019-06-07 2020-05-29 流路切替弁
JP2020-094886 2020-05-29

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023160883A1 (fr) * 2022-02-28 2023-08-31 HELLA GmbH & Co. KGaA Système de fluide de refroidissement pour véhicule électrique, système de refroidissement pour véhicule électrique, comprenant un système de fluide de refroidissement et un circuit de fluide frigorigène
WO2024014490A1 (fr) * 2022-07-13 2024-01-18 株式会社アイシン Soupape de module de refroidissement et module de refroidissement
CN118128994A (zh) * 2024-05-07 2024-06-04 河南省合建城市规划建筑设计有限公司 一种高层建筑用消防管件

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52100626A (en) * 1976-02-20 1977-08-23 Ihara Chemical Ind Co Change over valve
JPS5530545A (en) * 1978-08-23 1980-03-04 Kubota Ltd Two-liquid mixing valve
JP2015501911A (ja) * 2011-12-14 2015-01-19 コーニンクレッカ フィリップス エヌ ヴェ 逆転弁および高頻度振動空気流発生装置
JP2018536128A (ja) * 2015-12-01 2018-12-06 テスラ，インコーポレイテッド 複数の動作モードを伴うマルチポートバルブ

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52100626A (en) * 1976-02-20 1977-08-23 Ihara Chemical Ind Co Change over valve
JPS5530545A (en) * 1978-08-23 1980-03-04 Kubota Ltd Two-liquid mixing valve
JP2015501911A (ja) * 2011-12-14 2015-01-19 コーニンクレッカ フィリップス エヌ ヴェ 逆転弁および高頻度振動空気流発生装置
JP2018536128A (ja) * 2015-12-01 2018-12-06 テスラ，インコーポレイテッド 複数の動作モードを伴うマルチポートバルブ

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023160883A1 (fr) * 2022-02-28 2023-08-31 HELLA GmbH & Co. KGaA Système de fluide de refroidissement pour véhicule électrique, système de refroidissement pour véhicule électrique, comprenant un système de fluide de refroidissement et un circuit de fluide frigorigène
WO2024014490A1 (fr) * 2022-07-13 2024-01-18 株式会社アイシン Soupape de module de refroidissement et module de refroidissement
CN118128994A (zh) * 2024-05-07 2024-06-04 河南省合建城市规划建筑设计有限公司 一种高层建筑用消防管件

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