Multi-channel valve, thermal management system, and vehicle

Abstract

The embodiment of the present application provides a kind of multi-channel valve, heat management system and vehicle, multi-channel valve includes: first shell, second shell and partition;Partition is arranged between first shell and second shell, and multiple liquid outlet grooves are provided in first shell, and multiple liquid inlet grooves are provided in second shell, and multiple through holes are provided on partition;Wherein, one through hole is communicated one liquid inlet groove and one liquid outlet groove, each liquid outlet groove corresponds at least one through hole, and each liquid inlet groove corresponds at least one through hole;At least one liquid inlet groove corresponds two or more through holes;Corresponding any two through holes of the same liquid inlet groove, correspond two different liquid outlet grooves respectively;One switch valve is provided in each through hole, and switch valve is used to close or open through hole.The embodiment of the present application provides a kind of multi-channel valve, heat management system and vehicle, can satisfy the functional requirement of multi-channel valve.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of valves, in particular to a multi-channel valve, a thermal management system and a vehicle. BACKGROUND

[0002] Pure electric vehicles have begun to gradually popularize in the market. Compared with traditional gasoline-powered vehicles, the thermal management system of electric vehicles needs to not only achieve passenger cabin temperature regulation, but also meet the heating and cooling needs of the power assembly and the battery pack. The thermal management system of electric vehicles generally adopts a liquid cooling system. The pipeline of the liquid cooling system needs to connect multiple components such as the passenger cabin, the power assembly and the battery pack, and switch and control the flow of the cooling liquid between different components through a water valve.

[0003] In related technologies, the water valve used in the thermal management system of an electric vehicle is generally a ball valve. The ball valve can use a spherical valve core as an opening and closing member, and use a motor and a gear set to drive a valve rod, so that the valve core rotates around the axis of the ball valve under the driving of the valve rod, thereby controlling the closing or connection of the channels in the ball valve.

[0004] However, only one valve core can be arranged in the ball valve. If the number of ports of the ball valve increases, the ports will interfere with each other. Therefore, the structural characteristics of the ball valve make it difficult to increase the number of ports, and it is difficult to meet the functional requirements of a multi-channel valve. SUMMARY

[0005] The embodiments of the present application provide a multi-channel valve, a thermal management system and a vehicle, which can meet the functional requirements of a multi-channel valve.

[0006] The embodiments of the present application provide a multi-channel valve, a thermal management system and a vehicle, which can meet the functional requirements of a multi-channel valve.

[0007] The embodiment of the present application provides a multi-channel valve, which arranges liquid inlet grooves and liquid outlet grooves by setting upper and lower housings, and utilizes through holes to communicate the liquid inlet grooves and the liquid outlet grooves, and reasonably sets the corresponding relationship between the liquid inlet grooves and the through holes, the liquid outlet grooves and the through holes, and different liquid inlet grooves, through holes and liquid outlet grooves can be combined to form multiple different flow paths, so that the multi-channel valve can realize different working modes. The structure of the multi-channel valve is realized by the cavity structure of the housing, and the switching flow channel is realized by the switching valve. Overall, the structure of the multi-channel valve is simple, and the switching flow channel is low in difficulty.

[0008] In a possible implementation, the liquid inlet grooves include a first liquid inlet groove and a second liquid inlet groove, the liquid outlet grooves include a first liquid outlet groove and a second liquid outlet groove, and the through holes include a first through hole, a second through hole and a third through hole; the first liquid inlet groove corresponds to the first through hole and the second through hole, the second liquid inlet groove corresponds to the third through hole, the first liquid outlet groove corresponds to the first through hole and the third through hole, and the second liquid outlet groove corresponds to the second through hole.

[0009] The embodiment of the present application can realize the function of a three-way valve by setting two liquid inlet grooves, two liquid outlet grooves and three through holes.

[0010] In a possible implementation, the liquid inlet grooves include a first liquid inlet groove and a second liquid inlet groove, the liquid outlet grooves include a first liquid outlet groove and a second liquid outlet groove, and the through holes include a first through hole, a second through hole, a third through hole and a fourth through hole; the first liquid inlet groove corresponds to the first through hole and the second through hole, the second liquid inlet groove corresponds to the third through hole and the fourth through hole, the first liquid outlet groove corresponds to the first through hole and the third through hole, and the second liquid outlet groove corresponds to the second through hole and the fourth through hole.

[0011] The embodiment of the present application can realize the function of a four-way valve by setting two liquid inlet grooves, two liquid outlet grooves and four through holes.

[0012] In a possible implementation, the number of liquid outlet grooves is six, the number of liquid inlet grooves is five, and the number of through holes is twelve.

[0013] The embodiment of the present application can realize the function of an eleven-way valve by setting five liquid inlet grooves, six liquid outlet grooves and twelve through holes.

[0014] In a possible implementation, the liquid inlet grooves include a first liquid inlet groove, a second liquid inlet groove, a third liquid inlet groove, a fourth liquid inlet groove and a fifth liquid inlet groove, the liquid outlet grooves include a first liquid outlet groove, a second liquid outlet groove, a third liquid outlet groove, a fourth liquid outlet groove, a fifth liquid outlet groove and a sixth liquid outlet groove, the through holes include a first through hole, a second through hole, a third through hole, a fourth through hole, a fifth through hole, a sixth through hole, a seventh through hole, an eighth through hole, a ninth through hole, a tenth through hole, an eleventh through hole and a twelfth through hole; the first liquid inlet groove corresponds to the first through hole and the seventh through hole, the second liquid inlet groove corresponds to the second through hole, the third through hole and the eighth through hole, the third liquid inlet groove corresponds to the fourth through hole, the ninth through hole and the tenth through hole, the fourth liquid inlet groove corresponds to the fifth through hole and the eleventh through hole, and the fifth liquid inlet groove corresponds to the sixth through hole and the twelfth through hole; the first liquid outlet groove corresponds to the seventh through hole, the second liquid outlet groove corresponds to the first through hole and the second through hole, the third liquid outlet groove corresponds to the eighth through hole, the fourth liquid outlet groove corresponds to the third through hole, the ninth through hole and the sixth through hole, the fifth liquid outlet groove corresponds to the tenth through hole and the eleventh through hole, and the sixth liquid outlet groove corresponds to the fourth through hole, the fifth through hole and the twelfth through hole.

[0015] The eleven-way valve provided by the embodiment of the present application has reasonable arrangement of the liquid inlet grooves and the liquid outlet grooves and is easy to realize in structure.

[0016] In a possible implementation, the liquid inlet grooves include a first liquid inlet groove, a second liquid inlet groove and a third liquid inlet groove, the liquid outlet grooves include a first liquid outlet groove, a second liquid outlet groove and a third liquid outlet groove, and the through holes include a first through hole, a second through hole, a third through hole, a fourth through hole, a fifth through hole and a sixth through hole; the first liquid inlet groove corresponds to the first through hole and the fourth through hole, the second liquid inlet groove corresponds to the second through hole, the third through hole and the fifth through hole, and the third liquid inlet groove corresponds to the sixth through hole; the first liquid outlet groove corresponds to the first through hole and the second through hole, the second liquid outlet groove corresponds to the third through hole and the sixth through hole, and the third liquid outlet groove corresponds to the fourth through hole and the fifth through hole.

[0017] The embodiment of the present application can realize the function of the six-way valve by arranging three liquid inlet grooves, three liquid outlet grooves and six through holes.

[0018] In a possible implementation, the on-off valve includes a valve core, a compression spring and a driving mechanism, the compression spring is arranged in the through hole, one end of the compression spring is connected to the first shell or the second shell, the other end of the compression spring is connected to the valve core, the driving mechanism is arranged on the side of the valve core away from the compression spring, the driving mechanism is used to drive the valve core to move along the axis to make the valve core enter the through hole to close the through hole, and the compression spring is used to provide a restoring force for the valve core to open the through hole.

[0019] The embodiment of the present application utilizes the motor to drive the camshaft to realize flexible configuration of multiple on-off valves or utilizes electromagnetic drive to open and close the on-off valve, which is not only conducive to improving the integration of the multi-channel valve as a whole, but also makes the sealing of the valve core simpler and more reliable, the valve core only needs to move up and down, the friction is small, the torque is low, the overall driving current and noise are small.

[0020] In a possible implementation, the driving mechanism comprises a cam and a motor, the cam and the spool abut, and the motor and the cam are connected for driving the cam to rotate about the axis of the cam.

[0021] The motor is configured to drive the cam to rotate, and the cam drives the spool to move, so as to control the spool to close or open the through hole.

[0022] In a possible implementation, each through hole corresponds to a cam, the cam comprises a base and a protruding portion, the protruding portion is arranged protruding relative to the base, the radius of the base of each cam is the same, and the structures of the protruding portions of the cams are different.

[0023] When the base of the cam contacts the spool, the height of the spool remains unchanged, and the through hole is in an open state; when the protruding portion of the cam rotates to contact the spool, the protruding portion drives the spool to move downward, and the through hole is closed.

[0024] In a possible implementation, the axes of the plurality of cams coincide, the plurality of cams are arranged on a same cam shaft, and the motor is connected to an end of the cam shaft.

[0025] By switching the gear of the same cam shaft, the rotation of the plurality of cams can be controlled at the same time, and the switching control of the plurality of flow paths can be realized.

[0026] In a possible implementation, the cam is divided into a plurality of gears along the rotation direction, and at least part of the gears are located on the protruding portion.

[0027] Each cam can be provided with a plurality of gears according to the rotation angle, and part of the gears correspond to the protruding portion and part of the gears correspond to the base, that is, part of the gears correspond to the closing of the on-off valve and part of the gears correspond to the opening of the on-off valve. By switching the gears of the cam, the opening and closing of the through hole can be quickly switched.

[0028] In a possible implementation, the driving mechanism comprises a mover, a stator, an electromagnetic coil and a transmission member, the transmission member and the spool abut, the mover is connected to a side of the transmission member away from the spool, the stator is located on a side of the transmission member close to the spool, and the electromagnetic coil is arranged on the side of the transmission member.

[0029] The electromagnetic valve has the advantages of simple structure, the driving of the electromagnetic valve can realize the independent control of a single on-off valve, the states of different on-off valves can be more flexibly configured, so that the multi-channel valve can realize more function modes; in addition, the opening and closing switching time of the electromagnetic valve is short, which can reach milliseconds, so as to improve the efficiency of the multi-channel valve in switching the working mode; and the switching of different working modes of the multi-channel valve can be realized by controlling the switching of the corresponding electromagnetic valve, so that the switching is more flexible.

[0030] In a possible implementation, the on-off valve further comprises a positioning protrusion, the positioning protrusion is protrudingly arranged on the first shell or the second shell, the compression spring sleeve is arranged outside the positioning protrusion, and the valve core has a hollow cavity, and the positioning protrusion is inserted into the hollow cavity.

[0031] The positioning protrusion can play a role in positioning and guiding the valve core, and facilitate the up-and-down movement of the valve core.

[0032] Another aspect of the embodiment of the present application provides a thermal management system, comprising at least one of a compressor, a condenser, an evaporator, and a water pump, and the multi-channel valve described above, and the multi-channel valve is used to open or close a pipeline connected to at least one of the compressor, the condenser, the evaporator, and the water pump.

[0033] The thermal management system provided by the embodiment of the present application applies the multi-channel valve described above, arranges the liquid inlet groove and the liquid outlet groove by setting the upper and lower shells, and connects the liquid inlet groove and the liquid outlet groove by using the on-off valve. The structure of the multi-channel valve is easy to realize, the switching of the flow channel is difficult, the integration of the multi-channel valve is high, the pipeline arrangement of the thermal management system can be simplified, and the performance requirement of the thermal management system can be improved.

[0034] Still another aspect of the embodiment of the present application further provides a mobile vehicle, comprising a device to be temperature-regulated and the thermal management system described above, and the thermal management system is connected to the device to be temperature-regulated.

[0035] The mobile vehicle provided by the embodiment of the present application applies the multi-channel valve and the thermal management system described above, and is beneficial to reducing the temperature control difficulty of the power assembly, the battery pack and other components in the mobile vehicle.

[0036] The embodiment of the present application provides a multi-channel valve, a thermal management system and a vehicle. The liquid inlet groove and the liquid outlet groove are arranged by setting the upper and lower shells, and the liquid inlet groove and the liquid outlet groove are connected by using the through hole. The corresponding relationship between the liquid inlet groove, the through hole and the liquid outlet groove is reasonably set. Different flow paths can be formed by combining different liquid inlet grooves, through holes and liquid outlet grooves, so that the multi-channel valve can realize different working modes. The structure of the multi-channel valve is realized by the cavity of the shell, the switching of the flow channel is realized by the on-off valve, the overall structure of the multi-channel valve is simple, the switching of the flow channel is difficult, and the disadvantages of large friction, large rotating torque and mutual interference of ports of the ball valve in the related art can be overcome. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 A schematic diagram of a vehicle provided by an embodiment of the present application;

[0038] Figure 2 A simplified schematic diagram of a thermal management system provided by an embodiment of the present application;

[0039] Figure 3aThis is a schematic diagram of the structure of a multi-channel valve provided in an embodiment of this application;

[0040] Figure 3b This is an exploded view of a multi-channel valve provided in one embodiment of this application;

[0041] Figure 4a This is a schematic diagram of the structure of the second housing provided in one embodiment of this application;

[0042] Figure 4b This is a schematic diagram of the structure of the first housing provided in an embodiment of this application;

[0043] Figure 5a A simplified layout diagram of the second housing provided in an embodiment of this application;

[0044] Figure 5b A simplified layout diagram of the first housing provided in an embodiment of this application;

[0045] Figure 6 This is a schematic diagram showing the positional relationship between the piston valve and the diaphragm according to an embodiment of this application;

[0046] Figure 7 A top view of a multi-channel valve provided in an embodiment of this application;

[0047] Figure 8 for Figure 7 Schematic diagram of the cross section at point AA;

[0048] Figure 9 This is a schematic diagram of the structure of a cam provided in one embodiment of this application;

[0049] Figure 10 This is a schematic diagram of the structure of a camshaft and a motor provided in one embodiment of this application;

[0050] Figure 11 This is a schematic diagram of the structure of a camshaft provided in one embodiment of this application;

[0051] Figure 12 This is a schematic diagram of another camshaft provided in one embodiment of this application;

[0052] Figures 13a-13l This is a schematic diagram of the structure of twelve cams provided in one embodiment of this application;

[0053] Figure 14 A schematic diagram of another structure of the piston valve provided in one embodiment of this application;

[0054] Figure 15 A comparative schematic diagram showing the piston valve in the open and closed states according to an embodiment of this application;

[0055] Figure 16aA simplified layout diagram of an outlet slot is provided for an embodiment of the present application.

[0056] Figure 16b A simplified layout diagram of an inlet slot is provided for an embodiment of the present application.

[0057] Figure 17a A simplified layout diagram of an outlet slot is provided for an embodiment of the present application.

[0058] Figure 17b A simplified layout diagram of an inlet slot is provided for an embodiment of the present application.

[0059] Figure 18a A simplified layout diagram of an outlet slot is provided for an embodiment of the present application.

[0060] Figure 18b A simplified layout diagram of an inlet slot is provided for an embodiment of the present application.

[0061] BRIEF DESCRIPTION OF DRAWINGS

[0062] 100 - multi-channel valve; 11 - first housing; 111 - outlet slot; 112 - outlet port; 12 - second housing; 121 - inlet slot; 122 - inlet port; 13 - partition; 131 - through hole; 14 - third housing; 200 - on-off valve; 21 - valve core; 22 - compression spring; 23 - driving mechanism; 230 - camshaft; 231 - cam; 232 - motor; 233 - mover; 234 - stator; 235 - transmission member; 236 - electromagnetic coil; 24 - positioning protrusion;

[0063] 300 - thermal management system; 31 - compressor; 32 - condenser; 33 - evaporator; 34 - water pump;

[0064] 700 - powertrain; 400 - battery pack; 500 - electronic device; 600 - passenger cabin. DETAILED DESCRIPTION

[0065] Embodiments of the present application can provide a vehicle, such as a car, a motorcycle, an airplane, a truck, a boat, a train engine, etc., which can be any vehicle that uses at least partially stored electrical energy on the vehicle to power a traction motor, exemplarily, the vehicle can be a plug-in vehicle with a battery pack that can be charged through an external plug or using regenerative power derived from the motor.

[0066] Figure 1 A schematic diagram of a vehicle is provided for an embodiment of the present application. Referring to Figure 1As shown, the vehicle can include a thermal management system 300 and devices to be temperature-regulated, which are connected to regulate the temperature of the devices to be temperature-regulated. The devices to be temperature-regulated can include a power assembly 700, a battery pack 400, electronic devices 500, a passenger cabin 600, etc. The battery pack 400 is used to provide power to the electronic devices 500, the power assembly 700 can include, for example, a traction motor and a gearbox, and the electronic devices 500 can be used to drive the motor and the gearbox to propel the vehicle. The passenger cabin 600 is an area inside the vehicle for users to drive or ride.

[0067] The thermal management system 300 is used to control the temperature of the power assembly 700, the battery pack 400, the electronic devices 500, the passenger cabin 600, and other components. Figure 2 A simplified schematic diagram of the thermal management system provided for an embodiment of the present application is shown in FIG. 1. Figure 2 As shown, the thermal management system 300 can include a compressor 31, a condenser 32, an evaporator 33, a water pump 34, a multi-channel valve 100, etc. The compressor 31, the condenser 32, and the evaporator 33 can be connected in sequence by pipelines to form a refrigerant loop, and the condenser 32 and the evaporator 33 can be connected to the multi-channel valve 100 to form a cooling liquid loop.

[0068] It should be noted that not shown in the figure is that a plurality of external ports can be provided in the refrigerant loop, a plurality of external ports can be provided in the cooling liquid loop, and the multi-channel valve 100 itself has a plurality of liquid inlet ports and liquid outlet ports. These ports can connect the above-mentioned power assembly 700, battery pack 400, electronic devices 500, passenger cabin 600, etc. into the thermal management system 300, so that the thermal management system 300 can heat or cool these components.

[0069] The working principle of the refrigerant loop can be considered as follows: the gaseous refrigerant enters the compressor 31, is converted into high-temperature and high-pressure refrigerant after being compressed by the compressor 31, exchanges heat at the condenser 32 to become medium-temperature and medium-pressure refrigerant, and is converted into gaseous refrigerant after exchanging heat at the evaporator 33, and returns to the compressor 31. Therefore, the cooling liquid in the cooling liquid loop can absorb heat at the condenser 32 to heat the battery pack 400 and other components connected in the loop, and the cooling liquid in the cooling liquid loop can dissipate heat at the evaporator 33 to cool the power assembly 700 and other components connected in the loop.

[0070] The condenser 32 and the evaporator 33 connected in the refrigerant loop are water-cooled condensers and water-cooled evaporators. It should be understood that air-cooled condensers, air-cooled evaporators, radiator modules, heaters, etc. can also be connected in the cooling liquid loop through the multi-channel valve to enable the thermal management system to achieve more diversified cooling and heating modes.

[0071] It should be understood that the power assembly 700, the battery pack 400, the electronic device 500, the passenger cabin 600, etc. have different heating or cooling requirements, and need to be selectively connected to the evaporator 33, the condenser 32 and other refrigeration and heating components according to their own heating or cooling requirements, and the heat generated by the components such as the power assembly 700 can be recovered by waste heat to heat other components, that is, reasonable heat exchange can also be performed between multiple loops.

[0072] It is not difficult to understand that as the performance requirements of the thermal management system gradually increase, the architecture of the thermal management system becomes more and more complex, the number of components is large, and the installation positions of the components are also scattered, so the pipeline arrangement and avoidance of the thermal management system are very complicated. In order to simplify the pipeline arrangement of the thermal management system, the number of channels and the performance of the multi-channel valve are very important.

[0073] In the related art, the water valve used in the thermal management system is generally a combination of one or more of a three-way valve, a four-way valve and a five-way valve. The three-way valve, the four-way valve and the five-way valve are generally ball valves, that is, a spherical valve core is used as an opening and closing member, a motor and a gear set are used to drive a valve rod, and the valve core is driven by the valve rod to rotate around the axis of the ball valve, so as to control the closing or communication of the channels in the ball valve, and then to realize the diversion, combination or switching of the flow direction of the medium.

[0074] Only one valve core can be arranged in the ball valve, and the valve core rotates at most 360 degrees. If the number of ports of the ball valve exceeds five, on the one hand, the increase in the number of micro-channels of the ball valve core will cause processing difficulties and high process cost; on the other hand, the increase in the number of ports of the ball valve will cause interference between the ports, making it difficult to switch the internal flow channel, so that the adjustment mode of the ball valve is less, and the switching of multiple adjustment modes cannot be met; on the other hand, the increase in the number of ports of the ball valve will increase the contact area between the valve core and the sealing rubber, the friction force will be large, the rotation torque of the ball valve will be larger, and the demand for sealing compression will be higher, which not only easily leads to the reduction of the service life of the ball valve and the increase of the cost, but also leads to the increase of the volume of the motor and the gear set, and even occupies more than half of the total volume of the ball valve. In summary, the scheme of using a ball valve as a multi-channel valve in the related art is difficult to apply to a five-way or more multi-channel valve.

[0075] The multi-channel valve provided by the embodiments of the present application aims to solve the above technical problems in the related art.

[0076] The technical solutions of the present application and how the technical solutions of the present application solve the above technical problems will be described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes can not be described in detail in some embodiments.

[0077] Figure 3aA structural schematic diagram of a multi-channel valve provided by an embodiment of the present application, Figure 3b An explosion schematic diagram of a multi-channel valve provided by an embodiment of the present application, Figure 4a A structural schematic diagram of a second shell provided by an embodiment of the present application, Figure 4b A structural schematic diagram of a first shell provided by an embodiment of the present application. Reference is made to Figure 1 As shown in FIG. 4, a multi-channel valve 100 provided by an embodiment of the present application can include a valve shell, which can include a first shell 11, a second shell 12, and a partition plate 13, which can be arranged between the first shell 11 and the second shell 12 to separate the first shell 11 and the second shell 12.

[0078] A plurality of liquid outlet grooves 111 can be arranged in the first shell 11, and a plurality of liquid outlet ports 112 can be arranged on the first shell 11, the liquid outlet ports 112 being used to communicate the liquid outlet grooves 111 with the outside, and the plurality of liquid outlet grooves 111 and the plurality of liquid outlet ports 112 being in one-to-one correspondence; a plurality of liquid inlet grooves 121 can be arranged in the second shell 12, and a plurality of liquid inlet ports 122 can be arranged on the second shell 12, and the plurality of liquid inlet grooves 121 and the plurality of liquid inlet ports 122 can be in one-to-one correspondence.

[0079] The partition plate 13 can separate the liquid inlet grooves 121 and the liquid outlet grooves 111, and a plurality of through holes 131 can be arranged on the partition plate 13, one through hole 131 being able to communicate one liquid inlet groove 121 and one liquid outlet groove 111, each liquid outlet groove 111 being able to correspond to at least one through hole 131, and each liquid inlet groove 121 being able to correspond to at least one through hole 131. At least one liquid inlet groove 121 corresponds to two or more through holes 131, and any two through holes 131 corresponding to the same liquid inlet groove 121 correspond to two different liquid outlet grooves 111, respectively.

[0080] It should be noted that “corresponding” means that the liquid inlet groove 121 and the through hole 131 are in communication, and it can also be considered that the projection of the through hole 131 on the liquid inlet groove 121 is located in the liquid inlet groove 121. Since the through hole 131 can communicate the liquid inlet groove 121 and the liquid outlet groove 111, and one liquid inlet groove 121 corresponds to at least one through hole 131, the correspondence relationship here is not one-to-one, but one-to-one or one-to-many, and the correspondence relationship between the liquid outlet groove 111 and the through hole 131 is the same.

[0081] The refrigerant, coolant, or other liquid can enter the liquid inlet groove 121 through the liquid inlet port 122, then pass through the through hole 131 to enter the liquid outlet groove 111, and then be discharged from the liquid outlet port 112. It is not difficult to understand that one liquid inlet port 122, one liquid inlet groove 121, one through hole 131, one liquid outlet groove 111, and one liquid outlet port 112 can constitute a complete flow path of the multi-channel valve.

[0082] For the convenience of description, the X-axis in the figure can be defined as the length direction of the valve housing, the Y-axis as the width direction of the valve housing, and the Z-axis as the thickness direction of the valve housing, with the positive direction of the Z-axis being upward and the negative direction of the Z-axis being downward.

[0083] The first housing 11 can be located above the second housing 12, the first housing 11 can include a top wall 1101 and a side wall 1102, the second housing 12 can include a bottom wall 1201 and a side wall 1202, the top wall 1101 and the bottom wall 1201 are oppositely arranged, the side wall 1102 is arranged around the top wall 1101 and on the side of the top wall 1101 facing the second housing 12, the side wall 1202 is arranged around the bottom wall 1201 and on the side of the bottom wall 1201 facing the first housing 11, and the partition plate 13 is located between the top wall 1101 and the bottom wall 1201 and is oppositely arranged with the top wall 1101 and the bottom wall 1201.

[0084] The top wall 1101 is provided with a retaining wall 1103 protruding therefrom, which can separate the first housing 11 into a plurality of liquid outlet grooves 111, and the openings on the side wall 1102 and the liquid outlet pipes outside the openings jointly constitute a liquid outlet port 112. The bottom wall 1201 is provided with a retaining wall 1203 protruding therefrom, which can separate the second housing 12 into a plurality of liquid inlet grooves 121, and the openings on the side wall 1202 and the liquid inlet pipes outside the openings jointly constitute a liquid inlet port 122.

[0085] In theory, for the multi-channel valve provided by the embodiment of the present application, since the number of the liquid inlet port 122, the liquid inlet groove 121, the through hole 131, the liquid outlet groove 111 and the liquid outlet port 112 is multiple, different flow paths can be formed by combining different liquid inlet ports 122, liquid inlet grooves 121, through holes 131, liquid outlet grooves 111 and liquid outlet ports 112. For example, the liquid flowing into the same liquid inlet groove 121 from the same liquid inlet port 122 can pass through different through holes 131 in the liquid inlet groove 121, enter different liquid outlet grooves 111 and flow out from different liquid outlet ports 112.

[0086] It should be understood that by controlling the closure or communication of each through hole 131, different combinations of flow paths can be achieved, so that the multi-channel valve can realize different working modes.

[0087] Hereinafter, the working mode of the multi-channel valve provided by the embodiment of the present application will be described taking an eleven-channel valve as an example.

[0088] Figure 5a A simplified layout schematic diagram of the second housing provided by an embodiment of the present application, Figure 5b A simplified layout schematic diagram of the first housing provided by an embodiment of the present application. Referring to FIG. 3- Figure 5bAs shown, in an embodiment, the number of liquid outlet grooves 111 is 6, the number of liquid outlet ports 112 is 6, the number of liquid inlet grooves 121 is 5, the number of liquid inlet ports 122 is 5, and the number of through holes 131 is 12.

[0089] The liquid inlet grooves 121 can include a first liquid inlet groove 121a, a second liquid inlet groove 121b, a third liquid inlet groove 121c, a fourth liquid inlet groove 121d, and a fifth liquid inlet groove 121e arranged in sequence, and the five liquid inlet grooves are respectively communicated with the first liquid inlet port 122a, the second liquid inlet port 122b, the third liquid inlet port 122c, the fourth liquid inlet port 122d, and the fifth liquid inlet port 122e.

[0090] The liquid outlet grooves 111 can include a first liquid outlet groove 111a, a second liquid outlet groove 111b, a third liquid outlet groove 111c, a fourth liquid outlet groove 111d, a fifth liquid outlet groove 111e, and a sixth liquid outlet groove 111f, and the six liquid outlet grooves are respectively communicated with the first liquid outlet port 112a, the second liquid outlet port 112b, the third liquid outlet port 112c, the fourth liquid outlet port 112d, the fifth liquid outlet port 112e, and the sixth liquid outlet port 112f.

[0091] The through holes 131 can include a first through hole A1, a second through hole A2, a third through hole A3, a fourth through hole A4, a fifth through hole A5, a sixth through hole A6, a seventh through hole B1, an eighth through hole B2, a ninth through hole B3, a tenth through hole B4, an eleventh through hole B5, and a twelfth through hole B6.

[0092] The corresponding relationship between the liquid inlet grooves 121 and the through holes 131 is that the first liquid inlet groove 121a corresponds to the first through hole A1 and the seventh through hole B1, the second liquid inlet groove 121b corresponds to the second through hole A2, the third through hole A3, and the eighth through hole B2, the third liquid inlet groove 121c corresponds to the fourth through hole A4, the ninth through hole B3, and the tenth through hole B4, the fourth liquid inlet groove 121d corresponds to the fifth through hole A5 and the eleventh through hole B5, and the fifth liquid inlet groove 121e corresponds to the sixth through hole A6 and the twelfth through hole B6.

[0093] The corresponding relationship between the liquid outlet grooves 111 and the through holes 131 is that the first liquid outlet groove 111a corresponds to the seventh through hole B1, the second liquid outlet groove 111b corresponds to the first through hole A1 and the second through hole A2, the third liquid outlet groove 111c corresponds to the eighth through hole B2, the fourth liquid outlet groove 111d corresponds to the third through hole A3, the ninth through hole B3, and the sixth through hole A6, the fifth liquid outlet groove 111e corresponds to the tenth through hole B4 and the eleventh through hole B5, and the sixth liquid outlet groove 111f corresponds to the fourth through hole A4, the fifth through hole A5, and the twelfth through hole B6.

[0094] When one of the through holes 131 is in the communication state, the corresponding liquid inlet groove 121 and liquid outlet groove 111 are in communication. For example, when the first through hole A1 is in the communication state, the first liquid inlet groove 121a and the second liquid outlet groove 111b are in communication. When liquid enters from one of the liquid inlet ports 122, different through holes 131 can be selectively communicated to selectively discharge the liquid from different liquid outlet ports 112. For example, when liquid enters the first liquid inlet groove 121a from the first liquid inlet port 122a, the liquid can pass through the first through hole A1 into the second liquid outlet groove 111b and be discharged through the second liquid outlet port 112b, or pass through the seventh through hole B1 into the first liquid outlet groove 111a and be discharged through the first liquid outlet port 112a. The flow paths of the liquid after entering the liquid inlet ports 122 are listed in Table 1 as follows:

[0095] Table 1

[0096]

[0097]

[0098] As can be seen from Table 1, the eleven-way valve provided in the embodiments of the present application can realize 12 flow paths.

[0099] It should be understood that when all the twelve through holes 131 are in the communication state, 12 flow paths can be realized. In actual applications, by making part of the through holes 131 in the communication state and the other part of the through holes 131 in the closed state, part of the flow paths can be in communication and the other part of the flow paths can not be in communication, so that the eleven-way valve realizes different working modes.

[0100] For example, the eleven-way valve can have seven working modes, and the opening and closing of each through hole in different modes can be as shown in Table 2:

[0101] Table 2

[0102]

[0103]

[0104] In the embodiments of the present application, the switching of the communication state and the closed state of the through holes 131 can be realized by a switch valve. The switch valve can be, for example, a piston valve, and the number of piston valves is multiple. One piston valve can be arranged in each through hole 131. When the piston valve is opened, the corresponding through hole 131 is in the communication state, and when the piston valve is closed, the corresponding through hole 131 is in the closed state.

[0105] In a possible implementation, the opening and closing of the piston valve can be realized by a cam. Figure 6 A schematic diagram of the positional relationship of the piston valve and the partition plate provided in an embodiment of the present application is shown in FIG. 2.Figure 7 A top view of a multi-channel valve provided by an embodiment of the present application, Figure 8 A cross-sectional view of the multi-channel valve provided by an embodiment of the present application, Figure 7 A cross-sectional view of the multi-channel valve provided by an embodiment of the present application, Figure 2 、 Figures 6-8 As shown in FIG. 1, the piston valve 200 can include a valve core 21, a compression spring 22, and a driving mechanism 23.

[0106] The compression spring 22 can be disposed in the through hole 131, one end of the compression spring 22 is connected to the bottom wall 1201 of the second shell 12, the other end of the compression spring 22 is connected to the valve core 21, the driving mechanism 23 is disposed on the side of the valve core 21 away from the compression spring 22, the driving mechanism 23 can be located above the first shell 11, the driving mechanism 23 is used to drive the valve core 21 to move along the axis of the valve core 21, the driving mechanism 23 drives the valve core 21 to move downward into the through hole 131 to close the through hole 131 (see the piston valve shown in the right side of FIG. 2), after the driving mechanism 23 drives the valve core 21 upward or removes the pressure on the valve core 21, the valve core 21 can move upward away from the through hole 131 under the rebounding action of the compression spring 22 to open the through hole 131 (see the piston valve shown in the left side of FIG. 2). Figure 8 Figure 8 The driving mechanism 23 drives the valve core 21 to move downward into the through hole 131 to close the through hole 131 (see the piston valve shown in the right side of FIG. 2), after the driving mechanism 23 drives the valve core 21 upward or removes the pressure on the valve core 21, the valve core 21 can move upward away from the through hole 131 under the rebounding action of the compression spring 22 to open the through hole 131 (see the piston valve shown in the left side of FIG. 2).

[0107] The piston valve 200 further includes a positioning protrusion 24, the positioning protrusion 24 is protrudingly disposed on the bottom wall 1201 of the second shell 12, the compression spring 22 can be sleeved outside the positioning protrusion 24, the valve core 21 has a hollow cavity, the positioning protrusion 24 can be inserted into the hollow cavity. The positioning protrusion 24 can play a role of positioning and guiding the valve core 21, which is conducive to the upward and downward movement of the valve core 21.

[0108] It is not difficult to understand that in another embodiment, the compression spring 22 and the positioning protrusion 24 can also be disposed on the first shell 11, at this time, the driving mechanism 23 can be located below the second shell 12, the upward movement of the valve core 21 can close the through hole 131, and the downward movement of the valve core 21 can open the through hole 131.

[0109] Figure 9 A structure schematic diagram of a cam provided by an embodiment of the present application. Referring to FIG. 3, Figure 8 and Figure 9 As shown in FIG. 3, in a possible embodiment, the driving of the valve core 21 can be realized by means of a cam 231, the driving mechanism 23 can include the cam 231 and a motor 232, the cam 231 and the valve core 21 are in abutment, the cam 231 can include a base 2311 and a protruding portion 2312, the protruding portion 2312 is protrudingly disposed relative to the base 2311, the motor 232 and the cam 231 are connected, and the motor 232 is used to drive the cam 231 to rotate around the axis of the cam 231.

[0110] ​As the cam 231 rotates around its axis, it remains in contact with the valve core 21. It is easy to understand that the axis of the cam 231 is fixed relative to the valve body. When the base 2311 contacts the valve core 21, the height of the valve core 21 remains unchanged, and the through hole 131 is in the open state. When the cam 231 rotates to the point where the protrusion 2312 contacts the valve core 21, the protrusion 2312 drives the valve core 21 to move downward, and the through hole 131 is closed.

[0111] It should be understood that a cam 231 is provided at each through hole 131 so that each through hole 131 can realize the opening and closing control of the piston valve 200.

[0112] Figure 10 This is a schematic diagram of the structure of a camshaft and a motor provided in one embodiment of this application. Figure 11 This is a schematic diagram of a camshaft provided in one embodiment of this application. Figure 12 This is a schematic diagram of another camshaft provided according to an embodiment of this application. (Reference) Figures 10-12 As shown in the embodiment of this application, multiple cams 231 can be set on the same camshaft 230, the axes of the multiple cams 231 coincide, and coincide with the axis of the camshaft 230. The multiple cams 231 can be set one-to-one with multiple through holes 131 to control the opening and closing of each valve core 21.

[0113] The end of the camshaft 230 can be connected to a motor 232, which drives the entire camshaft 230 to rotate so that multiple cams 231 can rotate simultaneously. Compared to setting a motor for each cam 231, this arrangement can save energy, reduce the space occupied by the motor, and is beneficial to the structural design of multi-channel valves.

[0114] For the eleven-way valve provided in the embodiments of this application, there can be two camshafts 230. Camshafts 230a and camshafts 230b can each be provided with six cams 231. A motor 232 can be provided at the end of camshaft 230a and the end of camshaft 230b.

[0115] Combination Figure 2 It can be seen that both camshaft 230a and camshaft 230b can be disposed inside the third housing 14, the third housing 14 can be disposed above the first housing 11, and the motor 232 can be exposed outside the third housing 14.

[0116] Continue to refer to Figure 6 and Figure 8It can be seen that the top wall 1101 of the first housing 11 is provided with an opening 1104, the valve core 21 extends into the opening 1104 and extends into the third housing 14 to abut against the cam 231 inside the third housing 14. A sealing ring can be arranged in the opening 1104 to ensure the sealing between the valve core 21 and the opening 1104, preventing the liquid in the first housing 11 from leaking into the third housing 14 through the opening 1104.

[0117] In addition, the valve core 21 can also be provided with a sealing ring, which serves to seal between the valve core 21 and the through hole 131 when the valve core 21 closes the through hole 131.

[0118] It should be understood that each through hole 131 corresponds to a cam 231, the radius of the base 2311 of each cam 231 can be the same, and the structure of the protruding portion 2312 of each cam 231 is different, so that when the cam shaft 230 rotates, the positions of the plurality of cams 231 on the same cam shaft 230 abutting against the valve core 21 can be the base 2311 or the protruding portion 2312, so that the corresponding piston valve of each through hole 131 can be opened or closed.

[0119] Each cam 231 can have a plurality of gears according to the rotation angle, and some gears correspond to the protruding portion 2312 and some gears correspond to the base 2311, that is, some gears correspond to the closed piston valve and some gears correspond to the open piston valve.

[0120] For example, continuing to refer to Figure 9 As shown, for a cam 231, it can have seven gears V1-V7, which can correspond to seven working modes of the eleven-way valve. When the cam 231 rotates clockwise (the arrow in the figure points to), the gears V1-V7 can be arranged along the counterclockwise direction on the cam 231, and the angle between two adjacent gears can be α, and in the embodiment of the present application, α can be 55°, for example. For this cam, V1 and V2 are located on the protruding portion 2312, and when the cam 231 rotates to V1 or V2, the corresponding piston valve is in the closed state, and when the cam 231 rotates to V3, V4, V5, V6, V7, the corresponding piston valve is in the open state.

[0121] Figures 13a-13l The structure schematic diagram of twelve cams provided by an embodiment of the present application is shown in FIG. 13a-13l, which can correspond to the piston valves in A1-B6, respectively. Referring to Figures 13a-13lAs shown, V1 and V2 of the cam 231a are located on the protruding part, and the other gears are located on the base part; V1 and V2 of the cam 231b are located on the base part, and the other gears are located on the protruding part; V1, V2, V4 and V6 of the cam 231c are located on the protruding part, and the other gears are located on the base part; V4 and V6 of the cam 231d are located on the base part, and the other gears are located on the protruding part; V2 of the cam 231e is located on the base part, and the other gears are located on the protruding part; V6 and V7 of the cam 231f are located on the base part, and the other gears are located on the protruding part; V1 and V2 of the cam 231g are located on the base part, and the other gears are located on the protruding part; V3, V4 and V5 of the cam 231h are located on the base part, and the other gears are located on the protruding part; V2, V6 and V7 of the cam 231i are located on the base part, and the other gears are located on the protruding part; V5 and V6 of the cam 231j are located on the base part, and the other gears are located on the protruding part; V3, V4, V6 and V7 of the cam 231k are located on the base part, and the other gears are located on the protruding part; V5 of the cam 231l is located on the base part, and the other gears are located on the protruding part.

[0122] The twelve cams 231 can each have seven gears V1-V7, and when the twelve cams 231 are all in the same gear, the opening and closing states of the piston valves corresponding to each cam 231 are different, and different gears correspond to different working modes of the eleven-way valve. For example, when the twelve cams 231 are all in V1, Figures 13a-13i The states of the corresponding cams 231 can be in turn closed, opened, closed, closed, closed, closed, opened, closed, closed, closed, closed, and closed, and in this state, the eleven-way valve can be in working mode one.

[0123] In addition to using a cam as a driving mechanism, in another possible implementation, the piston valve 200 can be provided as a solenoid valve, that is, the opening and closing of the piston valve 200 can be controlled by the on-off of the solenoid. Figure 14 Another structural schematic diagram of the piston valve provided for an embodiment of the present application is shown in Figure 15 A comparison schematic diagram of the piston valve in the opened and closed states provided for an embodiment of the present application is shown in Figure 14 and Figure 15 As shown, when the piston valve 200 is a solenoid valve, the driving mechanism 23 can include a mover 233, a stator 234, a solenoid 236 and a transmission member 235, wherein the transmission member 235 can abut against the valve core 21, the mover 233 can be connected to the side of the transmission member 235 away from the valve core 21, the stator 234 can be located on the side of the transmission member 235 close to the valve core 21, and the solenoid 236 can be arranged on the circumferential side of the transmission member 235.

[0124] After the electromagnetic coil 236 is powered on, the stator 234 attracts the mover 233 to move downward, drives the transmission member 235, and moves the valve core 21 downward into the through hole 131 to close the through hole 131, and the compression spring 22 is compressed (the through hole closing state is shown in the piston valve on the right side in the middle of FIG. 8). Figure 15 After the electromagnetic coil 236 is powered off, the compression spring 22 rebounds, moves the valve core 21 upward away from the through hole 131 to open the through hole 131 (the through hole opening state is shown in the piston valve on the left side in the middle of FIG. 8). Figure 8

[0125] The electromagnetic valve has the advantages of simple structure, and the electromagnetic valve driving can realize independent control of a single piston valve 200, so that the states of different piston valves 200 can be more flexibly configured to enable the multi-channel valve to realize more function modes; moreover, the opening and closing switching time of the electromagnetic valve is short, which can reach milliseconds, so as to be beneficial to improving the efficiency of switching the working mode of the multi-channel valve; and the switching of different working modes of the multi-channel valve can be realized by switching the opening and closing of the corresponding electromagnetic valve, so that the switching is more flexible.

[0126] The multi-channel valve provided in the embodiments of the present application has the advantages that a plurality of liquid outlet grooves are arranged in the first shell, a plurality of liquid inlet grooves are arranged in the second shell, the upper and lower grooves are connected through the piston valve, and the liquid flow and shutoff of the upper and lower grooves are realized through the opening and closing of the piston valve, so that the structure is simple, the number of the liquid outlet grooves and the liquid inlet grooves is not limited, and a five-way or more multi-channel valve, for example, an eleven-way valve, can be realized.

[0127] In the embodiments of the present application, the multi-channel valve as a whole can be regarded as a cuboid structure, the liquid inlet port and the liquid outlet port can be arranged on opposite sides respectively, are regularly distributed, and occupy a small volume, and it should be understood that the multi-channel valve can also be arranged in other shapes, which are not specifically limited in the embodiments of the present application.

[0128] In addition to the arrangement of the upper and lower grooves, the multi-channel valve can also be arranged with three or more grooves, and the liquid flow and shutoff between the adjacent two grooves need to be realized through the arrangement of the piston valve, so that the number of the liquid inlet grooves and the liquid outlet grooves can be increased, the number of the channels of the multi-channel valve can be increased, and the flexibility of the flow path can be increased.

[0129] In addition, the embodiments of the present application utilize the motor to drive the camshaft to realize the flexible configuration of the plurality of piston valves, or utilize the electromagnetic driving to open and close the piston valve, which is not only beneficial to improving the integration of the whole multi-channel valve, but also makes the sealing of the valve core simpler and more reliable, the valve core only needs to move up and down, the friction is small, the torque is low, the overall driving current and noise are small.

[0130] ​Based on the above embodiments, it should be understood that, according to the concept of 11-way valve layout, those skilled in the art can conceive of other multi-channel valves such as 3-way valves, 4-way valves, and 5-way valves with the same layout principle.

[0131] Figure 16a This is a simplified layout diagram of the liquid outlet tank provided in one embodiment of this application. Figure 16b This is a simplified layout diagram of the liquid inlet tank provided in one embodiment of this application. (See reference...) Figure 16a and Figure 16b As shown, this application embodiment can provide a three-way valve, wherein the inlet tank 121 includes a first inlet tank 121a and a second inlet tank 121b, the outlet tank 111 includes a first outlet tank 111a and a second outlet tank 111b, and the through hole 131 includes a first through hole A1, a second through hole A2 and a third through hole B1; the first inlet tank 121a corresponds to the first through hole A1 and the second through hole A2, the second inlet tank 121b corresponds to the third through hole B1, the first outlet tank 111a corresponds to the first through hole A1 and the third through hole B1, and the second outlet tank 111b corresponds to the second through hole A2.

[0132] It is easy to understand that in this embodiment, three flow paths can be implemented: first liquid inlet 121a - first through hole A1 - first liquid outlet 111a; first liquid inlet 121a - second through hole A2 - second liquid outlet 111b; second liquid inlet 121b - third through hole B1 - first liquid outlet 111a.

[0133] Figure 17a This is a simplified layout diagram of the liquid outlet tank provided in one embodiment of this application. Figure 17b This is a simplified layout diagram of the liquid inlet tank provided in one embodiment of this application. (See reference...) Figure 17a and Figure 17b As shown, this application embodiment can provide a four-way valve. The inlet tank 121 includes a first inlet tank 121a and a second inlet tank 121b, the outlet tank 111 includes a first outlet tank 111a and a second outlet tank 111b, and the through hole 131 includes a first through hole A1, a second through hole A2, a third through hole B1, and a fourth through hole B4. The first inlet tank 121a corresponds to the first through hole A1 and the second through hole A2, the second inlet tank 121b corresponds to the third through hole B1 and the fourth through hole B2, the first outlet tank 111a corresponds to the first through hole A1 and the third through hole B1, and the second outlet tank 111b corresponds to the second through hole A2 and the fourth through hole B2.

[0134] It is easy to understand that in this embodiment, four flow paths can be implemented: first liquid inlet 121a - first through hole A1 - first liquid outlet 111a; first liquid inlet 121a - second through hole A2 - second liquid outlet 111b; second liquid inlet 121b - third through hole B1 - first liquid outlet 111a; second liquid inlet 121b - fourth through hole B2 - second liquid outlet 111b.

[0135] Figure 18a A simplified layout diagram of the liquid outlet groove provided by an embodiment of the present application is shown in the figure, Figure 18b A simplified layout diagram of the liquid inlet groove provided by an embodiment of the present application is shown in the figure, Figure 18a and Figure 18b As shown in the figures, the embodiment of the present application can provide a six-way valve, the liquid inlet groove 121 includes a first liquid inlet groove 121a, a second liquid inlet groove 121b and a third liquid inlet groove 121c, the liquid outlet groove 111 includes a first liquid outlet groove 111a, a second liquid outlet groove 111b and a third liquid outlet groove 111c, the through hole 131 includes a first through hole A1, a second through hole A2, a third through hole A3, a fourth through hole B1, a fifth through hole B2 and a sixth through hole B3; the first liquid inlet groove 121a corresponds to the first through hole A1 and the fourth through hole B1, the second liquid inlet groove 121b corresponds to the second through hole A2, the third through hole A3 and the fifth through hole B2, and the third liquid inlet groove 121c corresponds to the sixth through hole B3; the first liquid outlet groove 111a corresponds to the first through hole A1 and the second through hole A2, the second liquid outlet groove 111b corresponds to the third through hole A3 and the sixth through hole B3, and the third liquid outlet groove 111c corresponds to the fourth through hole B1 and the fifth through hole B2.

[0136] As can be easily understood, in this embodiment, six flow paths can be realized: the first liquid inlet groove 121a-the first through hole A1-the first liquid outlet groove 111a; the first liquid inlet groove 121a-the fourth through hole B1-the third liquid outlet groove 111c; the second liquid inlet groove 121b-the second through hole A2-the first liquid outlet groove 111a; the second liquid inlet groove 121b-the third through hole A3-the second liquid outlet groove 111b; the second liquid inlet groove 121b-the fifth through hole B2-the third liquid outlet groove 111c; and the third liquid inlet groove 121c-the sixth through hole B3-the second liquid outlet groove 111b.

[0137] The above three multi-way valves are only examples, and according to the arrangement idea of the liquid inlet groove and the liquid outlet groove provided by the present application, any multi-way valve with three or more ways can be provided, and various multi-way valves are not listed one by one in the embodiments of the present application. Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solutions of the embodiments of the present application, but not to limit them; although the embodiments of the present application have been described in detail with reference to the above embodiments, those skilled in the art should understand that: they can still modify the technical solutions recorded in the above embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A multi-pass valve characterized by, The application relates to a liquid distribution device, comprising: a first shell, a second shell and a partition plate, wherein: the partition plate is arranged between the first shell and the second shell, a plurality of liquid outlet grooves are arranged in the first shell, the plurality of liquid outlet grooves and a plurality of liquid outlet ports are in one-to-one correspondence and are in communication, a plurality of liquid inlet grooves are arranged in the second shell, the plurality of liquid inlet grooves and a plurality of liquid inlet ports are in one-to-one correspondence and are in communication, and a plurality of through holes are arranged on the partition plate; one through hole is in communication with one liquid inlet groove and one liquid outlet groove, each liquid outlet groove corresponds to at least one through hole, and each liquid inlet groove corresponds to at least one through hole; at least one liquid inlet groove corresponds to two or more through holes; any two through holes corresponding to the same liquid inlet groove correspond to two different liquid outlet grooves respectively; each through hole is provided with a switch valve for closing or opening the through hole.

2. The multi-pass valve of claim 1, wherein, The liquid inlet grooves comprise a first liquid inlet groove and a second liquid inlet groove, the liquid outlet grooves comprise a first liquid outlet groove and a second liquid outlet groove, and the through holes comprise a first through hole, a second through hole and a third through hole; the first liquid inlet groove corresponds to the first through hole and the second through hole, the second liquid inlet groove corresponds to the third through hole, the first liquid outlet groove corresponds to the first through hole and the third through hole, and the second liquid outlet groove corresponds to the second through hole.

3. The multi-pass valve of claim 1, wherein, The liquid inlet grooves comprise a first liquid inlet groove and a second liquid inlet groove, the liquid outlet grooves comprise a first liquid outlet groove and a second liquid outlet groove, and the through holes comprise a first through hole, a second through hole, a third through hole and a fourth through hole; the first liquid inlet groove corresponds to the first through hole and the second through hole, the second liquid inlet groove corresponds to the third through hole and the fourth through hole, the first liquid outlet groove corresponds to the first through hole and the third through hole, and the second liquid outlet groove corresponds to the second through hole and the fourth through hole.

4. The multi-pass valve of claim 1, wherein, The number of liquid outlet grooves is six, the number of liquid inlet grooves is five, and the number of through holes is twelve.

5. The multi-pass valve of claim 4, wherein, The liquid inlet grooves comprise a first liquid inlet groove, a second liquid inlet groove, a third liquid inlet groove, a fourth liquid inlet groove and a fifth liquid inlet groove, the liquid outlet grooves comprise a first liquid outlet groove, a second liquid outlet groove, a third liquid outlet groove, a fourth liquid outlet groove, a fifth liquid outlet groove and a sixth liquid outlet groove, and the through holes comprise a first through hole, a second through hole, a third through hole, a fourth through hole, a fifth through hole, a sixth through hole, a seventh through hole, an eighth through hole, a ninth through hole, a tenth through hole, an eleventh through hole and a twelfth through hole; the first liquid inlet groove corresponds to the first through hole and the seventh through hole, the second liquid inlet groove corresponds to the second through hole, the third through hole and the eighth through hole, the third liquid inlet groove corresponds to the fourth through hole, the ninth through hole and the tenth through hole, the fourth liquid inlet groove corresponds to the fifth through hole and the eleventh through hole, and the fifth liquid inlet groove corresponds to the sixth through hole and the twelfth through hole. The first liquid outlet groove corresponds to the seventh through hole, the second liquid outlet groove corresponds to the first and second through holes, the third liquid outlet groove corresponds to the eighth through hole, the fourth liquid outlet groove corresponds to the third, ninth and sixth through holes, the fifth liquid outlet groove corresponds to the tenth and eleventh through holes, and the sixth liquid outlet groove corresponds to the fourth, fifth and twelfth through holes.

6. The multi-pass valve of claim 1, wherein, The liquid inlet grooves include a first liquid inlet groove, a second liquid inlet groove and a third liquid inlet groove, the liquid outlet grooves include a first liquid outlet groove, a second liquid outlet groove and a third liquid outlet groove, and the through holes include a first through hole, a second through hole, a third through hole, a fourth through hole, a fifth through hole and a sixth through hole. The first liquid inlet groove corresponds to the first and fourth through holes, the second liquid inlet groove corresponds to the second, third and fifth through holes, and the third liquid inlet groove corresponds to the sixth through hole.

7. The multi-pass valve according to any one of claims 1-6, wherein, The switch valve includes a valve core, a compression spring and a driving mechanism, the compression spring is arranged in the through hole, one end of the compression spring is connected to the first shell or the second shell, the other end of the compression spring is connected to the valve core, the driving mechanism is arranged on the side of the valve core away from the compression spring, the driving mechanism is used to drive the valve core to move along the axis to close the through hole, and the compression spring is used to provide a restoring force for the valve core to open the through hole.

8. The multi-pass valve of claim 7, wherein, The driving mechanism includes a cam and a motor, the cam and the valve core are in abutment, and the motor is connected to the cam and used to drive the cam to rotate around the axis of the cam.

9. The multi-pass valve of claim 8, wherein, Each through hole corresponds to a cam, the cam includes a base and a protruding part, the protruding part is arranged protruding relative to the base, the radii of the bases of the cams are the same, and the structures of the protruding parts of the cams are different.

10. The multi-pass valve of claim 9, wherein, The axes of the cams coincide, and the cams are arranged on a cam shaft.

11. The multi-pass valve of claim 9, wherein, The cam is divided into multiple gears along the rotation direction, and at least part of the gears are located on the protruding part.

12. The multi-pass valve of claim 7, wherein, The driving mechanism includes a mover, a stator, an electromagnetic coil and a transmission part, the transmission part and the valve core are in abutment, the mover is connected to the side of the transmission part away from the valve core, the stator is located on the side of the transmission part close to the valve core, and the electromagnetic coil is arranged on the circumferential side of the transmission part.

13. The multi-pass valve of claim 7, wherein, The switch valve further includes a positioning protruding column, the positioning protruding column is arranged protruding on the first shell or the second shell, the compression spring is sleeved outside the positioning protruding column, the valve core has a hollow cavity, and the positioning protruding column is inserted into the hollow cavity.

14. A thermal management system characterized by, The multi-channel valve is used to open or close a pipeline connected to at least one of a compressor, a condenser, an evaporator and a water pump.

15. A vehicle, characterized by The heat management system of claim 14 and a device to be temperature regulated, the heat management system and the device to be temperature regulated being connected.

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