Coolant Circuit Integration Block, Thermal Management System and Vehicle

Abstract

A coolant path integrated seat, a thermal management system and a vehicle. The coolant path integrated seat includes: a five-way valve connection part provided with five transition grooves separated from each other, and the five transition grooves are arranged to be in one-to-one correspondence and communication with five channels of a five-way valve, and the five-way valve is a three-position five-way valve with three working modes; a motor thermal management flow path connection part provided with a first inlet and a first outlet; a battery thermal management flow path connection part provided with a second inlet and a second outlet; and a radiator connection part provided with a third inlet and a third outlet; wherein, the first inlet, the first outlet, the second inlet, the second outlet and the third outlet are respectively in one-to-one correspondence and communication with the five transition grooves, and the third inlet is in communication with the first outlet. The coolant path integrated seat provided by the embodiment of the present application can simplify the structure and the electronic control program of the thermal management system and reduce the production cost.

Description

Technical Field

[0001] This application relates to, but is not limited to, the technical field of vehicle thermal management, specifically referring to a coolant passage integrated seat, a thermal management system, and a vehicle. Background Art

[0002] Currently, with the development of new energy vehicles, the thermal management system of vehicles has become increasingly important. To meet the thermal management requirements of motors and batteries, the coolant flow path of the thermal management system usually needs to use multiple control valves to switch working modes, resulting in a relatively complex structure and high cost of the thermal management system. Summary of the Invention

[0003] The technical problem to be solved by this application is to provide a coolant passage integrated seat, a thermal management system, and a vehicle, which can simplify the structure of the thermal management system and the electronic control program, and reduce the production cost.

[0004] An embodiment of this application provides a coolant passage integrated seat, including: a five-way valve connection part, provided with five transition grooves separated from each other, and the five transition grooves are arranged to be in one-to-one correspondence and communication with the five channels of a five-way valve, and the five-way valve is a three-position five-way valve with three working modes; a motor thermal management flow path connection part, provided with a first inlet and a first outlet; a battery thermal management flow path connection part, provided with a second inlet and a second outlet; and a radiator connection part, provided with a third inlet and a third outlet; wherein, the first inlet, the first outlet, the second inlet, the second outlet, and the third outlet are respectively in one-to-one correspondence and communication with the five transition grooves, and the third inlet is in communication with the first outlet.

[0005] The coolant passage integrated seat provided by the embodiment of this application includes a five-way valve connection part, a motor thermal management flow path connection part, a battery thermal management flow path connection part, and a radiator connection part. The five-way valve connection part can be connected to a three-position five-way valve with three working modes. The motor thermal management flow path connection part can be connected to the components of the motor thermal management flow path, the battery thermal management flow path connection part can be connected to the components of the battery thermal management flow path, and the radiator connection part can be connected to the radiator.

[0006] Since the five transition grooves of the five-way valve connection part can be in one-to-one correspondence and communication with the five channels of the five-way valve, the first inlet and the first outlet can be in correspondence and communication with two transition grooves, the second inlet and the second outlet can be in correspondence and communication with two other transition grooves, the third outlet can be in correspondence and communication with the remaining one transition groove, and the third inlet can be in communication with the first outlet.

[0007] Therefore, the coolant passage integrated seat of this solution can achieve the integrated installation of the five-way valve, the motor thermal management flow path, the battery thermal management flow path, and the radiator, which is beneficial to simplifying the structure of the thermal management system and reducing the production cost.

[0008] Compared with the method of installing multiple control valves to switch the working mode of the coolant flow path of the thermal management system, in this solution, by installing a five-way valve, the coolant flow path of the thermal management system can be switched between three working modes, which is beneficial to simplifying the structure and the electronic control method of the thermal management system, and thus reducing the production cost.

[0009] Moreover, compared with an integrated control valve such as an eight-way valve, the five-way valve has a simpler structure. With a roughly equivalent volume, the cross-sectional area of the flow channel of the five-way valve can be made larger, thus reducing the operating flow resistance. In addition, for the five-way valve in this solution, the three valve positions correspond to three working modes, and there is no problem of gear skipping.

[0010] In addition, the eight-way valve is not applicable to a direct system, while the five-way valve and the coolant path integrated seat of this application can be applied to a direct system, which is beneficial to reducing the number of control valves in the direct system and further simplifying the structure of the thermal management system.

[0011] Based on the above technical solutions, the present application can be further improved as follows.

[0012] In an exemplary embodiment, the five transition grooves are distributed in two columns and three rows. The first column includes the first transition groove, the second transition groove, and the third transition groove that are sequentially adjacent to each other. The second column includes the fourth transition groove and the fifth transition groove. The second transition groove and the fourth transition groove are in the same row, and the third transition groove and the fifth transition groove are in the same row. The first inlet is communicated with the fifth transition groove, the first outlet is communicated with the first transition groove, the second inlet is communicated with the second transition groove, the second outlet is communicated with the third transition groove, the third outlet is communicated with the fourth transition groove, and the third inlet is also communicated with the first transition groove.

[0013] In an exemplary embodiment, when the five-way valve is in the first working mode, the second transition groove and the fourth transition groove are conducted, and the third transition groove and the fifth transition groove are conducted. When the five-way valve is in the second working mode, the first transition groove and the second transition groove are conducted, and the third transition groove and the fifth transition groove are conducted. When the five-way valve is in the third working mode, the second transition groove and the third transition groove are conducted, and the fourth transition groove and the fifth transition groove are conducted.

[0014] In an exemplary embodiment, the motor thermal management flow path connection part includes a first water pump connection part, a motor inlet pipe joint, and a motor outlet pipe joint. The first water pump connection part is provided with a first water pump inlet and a first water pump outlet. The first water pump outlet is communicated with the motor inlet pipe joint, the first water pump inlet is communicated with the first inlet, and the port of the motor outlet pipe joint forms the first outlet.

[0015] In an exemplary embodiment, the motor thermal management flow path connection portion further includes a water kettle connection portion, which is provided with a water kettle inlet and a water kettle outlet. The water kettle inlet forms the first inlet, and the water kettle outlet is communicated with the first water pump inlet.

[0016] In an exemplary embodiment, the motor thermal management flow path connection portion further includes an ascending flow channel and a descending flow channel. The upper end of the ascending flow channel is connected to the upper end of the descending flow channel. The water kettle connection portion is arranged at the intersection of the ascending flow channel and the descending flow channel. The water kettle inlet is communicated with the corresponding transition groove through the ascending flow channel, and the water kettle outlet is communicated with the first water pump inlet through the descending flow channel.

[0017] In an exemplary embodiment, a flow dividing plate extending along the flow direction of the ascending flow channel is arranged in the ascending flow channel. The flow dividing plate divides the ascending flow channel into a water kettle flow channel and a water pump flow channel. The water kettle flow channel is communicated with the water kettle inlet, and the water pump flow channel is communicated with the first water pump inlet through the descending flow channel. And the minimum flow cross-sectional area of the water pump flow channel is larger than that of the water kettle flow channel.

[0018] In an exemplary embodiment, the radiator connection portion includes a radiator inlet pipe joint and a radiator outlet pipe joint. The port of the radiator inlet pipe joint forms the third inlet, and the port of the radiator outlet pipe joint forms the third outlet. The radiator inlet pipe joint and the motor outlet pipe joint are arranged in parallel and are communicated with the same transition groove.

[0019] In an exemplary embodiment, the motor inlet pipe joint and the motor outlet pipe joint are located on both sides of the five-way valve connection portion. The radiator outlet pipe joint is located between the motor outlet pipe joint and the water kettle connection portion.

[0020] In an exemplary embodiment, the battery thermal management flow path connection portion includes a second water pump connection portion, a battery inlet pipe joint, a battery outlet pipe joint, an out-of-cabin evaporator inlet pipe joint, and an out-of-cabin evaporator outlet pipe joint. The second water pump connection portion is provided with a second water pump inlet and a second water pump outlet. The second water pump inlet forms the second inlet, and the port of the battery outlet pipe joint forms the second outlet.

[0021] In an exemplary embodiment, the battery thermal management flow path connection portion further includes a coolant heater inlet pipe joint and a coolant heater outlet pipe joint. The second water pump outlet is communicated with the coolant heater inlet pipe joint. The coolant heater outlet pipe joint is communicated with the out-of-cabin evaporator inlet pipe joint. The out-of-cabin evaporator outlet pipe joint is communicated with the battery inlet pipe joint.

[0022] In an exemplary embodiment, the battery thermal management flow path connection part and the first water pump connection part are located on both sides of the five-way valve connection part; the battery thermal management connection part further includes an extended flow channel, and the second water pump inlet is communicated with the corresponding transition tank through the extended flow channel; the motor outlet pipe joint is located between the second water pump connection part and the five-way valve connection part, and on one side in the width direction of the extended flow channel; the coolant heater inlet pipe joint, the coolant heater outlet pipe joint, the out-of-cabin evaporator inlet pipe joint, the out-of-cabin evaporator outlet pipe joint, the battery inlet pipe joint, and the battery outlet pipe joint are located on the other side in the width direction of the extended flow channel.

[0023] The embodiment of the present application also provides a thermal management system, including: a five-way valve, a first water pump, a second water pump, and a coolant path integration seat as described in any one of the above embodiments; the five-way valve is connected to the five-way valve connection part, the first water pump is connected to the motor thermal management flow path connection part, and the second water pump is connected to the battery thermal management flow path connection part.

[0024] In an exemplary embodiment, the thermal management system further includes a water kettle and a coolant heater; the water kettle is communicated with the first water pump, and the coolant heater is communicated with the second water pump; an exhaust port is provided at the top of the water kettle, and a flow guide plate for increasing the flow path between the water kettle inlet and the exhaust port is provided in the water kettle.

[0025] In an exemplary embodiment, at least a part of the flow guide plate is provided as a porous plate.

[0026] The embodiment of the present application also provides a vehicle, including the thermal management system as described in any one of the above embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional structural schematic diagram of a five-way valve from one perspective provided by an embodiment of the present application;

[0028] Figure 2 It is Figure 1 a three-dimensional structural schematic diagram of the five-way valve shown from another perspective;

[0029] Figure 3 It is Figure 1 a three-dimensional structural schematic diagram of the five-way valve shown from yet another perspective;

[0030] Figure 4 It is Figure 1 a structural schematic diagram of the housing of the five-way valve shown;

[0031] Figure 5 It is Figure 1 a front view structural schematic diagram of the housing shown;

[0032] Figure 6 is Figure 1 a perspective three-dimensional structural schematic diagram of the spool of the five-way valve shown;

[0033] Figure 7 is Figure 6 a perspective three-dimensional structural schematic diagram of the spool of the five-way valve shown from another perspective;

[0034] Figure 8 is Figure 1 a perspective three-dimensional structural schematic diagram of the valve cover of the five-way valve shown;

[0035] Figure 9 is Figure 1 a perspective three-dimensional structural schematic diagram of the third seal of the five-way valve shown;

[0036] Figure 10 is Figure 1 a perspective three-dimensional structural schematic diagram of the first seal of the five-way valve shown;

[0037] Figure 11 is Figure 1 a perspective three-dimensional structural schematic diagram of the second seal of the five-way valve shown;

[0038] Figure 12 is Figure 1 a front view structural schematic diagram of the five-way valve shown;

[0039] Figure 13 is Figure 12 a sectional view structural schematic diagram of the five-way valve in the A-A direction shown;

[0040] Figure 14 is Figure 12 a sectional view structural schematic diagram of the five-way valve in the B-B direction shown;

[0041] Figure 15 is Figure 14 an enlarged structural schematic diagram of part C in;

[0042] Figure 16 is Figure 12 a top view structural schematic diagram of the five-way valve shown;

[0043] Figure 17 is Figure 16 a sectional view structural schematic diagram of the five-way valve in the D-D direction shown;

[0044] Figure 18 is Figure 16 a sectional view structural schematic diagram of the five-way valve in the E-E direction shown;

[0045] Figure 19 is Figure 12 a right view structural schematic diagram of the five-way valve shown;

[0046] Figure 20 is Figure 19 the schematic cross-sectional structure diagram of the five-way valve in the F-F direction;

[0047] Figure 21 is Figure 19 the schematic cross-sectional structure diagram of the five-way valve in the G-G direction;

[0048] Figure 22 is Figure 1 the schematic three-dimensional structure diagram of the five-way valve from another perspective;

[0049] Figure 23 the schematic diagram of the coolant flow path of the thermal management system provided by an embodiment of the present application;

[0050] Figure 24 is Figure 22 the partial structure schematic diagram of the five-way valve in the first working mode;

[0051] Figure 25 is Figure 23 the flow path schematic diagram of the coolant flow path in the first working mode;

[0052] Figure 26 is Figure 22 the partial structure schematic diagram of the five-way valve in the second working mode;

[0053] Figure 27 is Figure 23 the flow path schematic diagram of the coolant flow path in the second working mode;

[0054] Figure 28 is Figure 22 the partial structure schematic diagram of the five-way valve in the third working mode;

[0055] Figure 29 is Figure 23 the flow path schematic diagram of the coolant flow path in the third working mode;

[0056] Figure 30 the partial three-dimensional structure schematic diagram of the coolant path integration seat provided by an embodiment of the present application;

[0057] Figure 31 is Figure 30 the front view structure schematic diagram of the coolant path integration seat shown;

[0058] Figure 32 is Figure 31 the schematic cross-sectional structure diagram of the coolant path integration seat in the H-H direction;

[0059] Figure 33 is Figure 31 the schematic cross-sectional structure diagram of the coolant path integration seat in the I-I direction;

[0060] Figure 34 Schematic three - dimensional structure diagram of the coolant path integrated seat provided by an embodiment of the present application;

[0061] Figure 35 Partial three - dimensional structure diagram of the coolant path integrated module provided by an embodiment of the present application;

[0062] Figure 36 is Figure 35 Front view schematic diagram of the structure shown;

[0063] Figure 37 is Figure 36 Cross - sectional structure schematic diagram of the structure shown in the J - J direction;

[0064] Figure 38 is Figure 36 Cross - sectional structure schematic diagram of the structure shown in the K - K direction;

[0065] Figure 39 is Figure 35 Three - dimensional structure schematic diagram of another perspective of the coolant path integrated module shown;

[0066] Figure 40 is Figure 35 Three - dimensional structure schematic diagram of the water kettle in

[0067] Figure 41 is Figure 40 Half - sectional structure schematic diagram of the water kettle shown;

[0068] Figure 42 is Figure 40 Internal structure schematic diagram of the water kettle shown.

[0069] In the drawings, the list of components represented by each reference numeral is as follows:

[0070] 1 Housing, 11 Shell, 111 Cylindrical part, 1111 Valve cavity, 1112 First annular boss, 1113 Second limiting rib, 112 Protruding part, 1121 First channel, 1122 Second channel, 1123 Third channel, 1124 Fourth channel, 1125 Fifth channel, 12 Valve cover, 121 Shaft hole, 122 Second annular boss;

[0071] 2 Spool, 21 First vertical partition, 22 Second vertical partition, 23 Third vertical partition, 24 Fourth vertical partition, 25 Horizontal partition, 26 First end plate, 261 Rotating shaft, 27 Second end plate, 271 Protrusion, 272 First limiting rib, 281 First communication groove, 282 Second communication groove, 283 Third communication groove, 284 Fourth communication groove;

[0072] 31 First seal, 32 Second seal, 33 Third seal;

[0073] 41 Motor thermal management flow path connection part, 411 First inlet, 412 First outlet, 413 First water pump connection part, 4131 First water pump inlet, 4132 First water pump outlet, 4133 Circular base, 4134 First notch, 4135 Second notch, 4136 Lug, 4137 U-shaped rib, 4141 Motor inlet pipe joint, 4142 Motor outlet pipe joint, 415 Water kettle connection part, 4151 Water kettle inlet, 4152 Water kettle outlet, 416 Upward flow path, 4161 Water kettle flow path, 4162 Water pump flow path, 417 Downward flow path, 418 Flow dividing plate;

[0074] 42 Battery thermal management flow path connection part, 421 Second inlet, 422 Second outlet, 423 Second water pump connection part, 4231 Second water pump inlet, 4232 Second water pump outlet, 4241 Coolant heater inlet pipe joint, 4242 Coolant heater outlet pipe joint, 4251 Out-of-cabin evaporator inlet pipe joint, 4252 Out-of-cabin evaporator outlet pipe joint, 4261 Battery inlet pipe joint, 4262 Battery outlet pipe joint, 427 Extension flow path;

[0075] 43 Radiator connection part, 431 Third inlet, 432 Third outlet, 433 Radiator inlet pipe joint, 434 Radiator outlet pipe joint;

[0076] 44 Five-way valve connection part, 441 First transition groove, 442 Second transition groove, 443 Third transition groove, 444 Fourth transition groove, 445 Fifth transition groove;

[0077] 51 First water pump, 52 Second water pump, 53 Coolant heater, 54 Out-of-cabin evaporator, 55 Battery heat exchange flow path, 56 Motor heat exchange flow path, 57 Radiator, 58 Water kettle, 581 Exhaust port, 582 Flow guiding plate, 5821 First sub-plate, 5822 Second sub-plate, 5823 Third sub-plate, 583 Water level sensor, 5841 First side wall, 5842 Second side wall;

[0078] 100 Five-way valve, 200 Coolant path integrated seat, 202 First bottom plate, 204 Second bottom plate, 206 Third bottom plate. Detailed implementation mode

[0079] The principles and features of the present application will be described below in conjunction with the accompanying drawings. The examples given are only used to explain the present application and are not intended to limit the scope of the present application.

[0080] The thermal management system of a new energy vehicle (such as a pure electric vehicle) generally includes a coolant flow path and a refrigerant flow path.

[0081] The refrigerant flow path includes structures such as a compressor, an in-cabin evaporator, an in-cabin condenser, an expansion valve, an out-of-cabin evaporator (chiller), and an out-of-cabin condenser.

[0082] The coolant flow path generally includes structures such as a water pump, a water tank, a motor heat exchange flow path, a battery heat exchange flow path, an external radiator, and an external evaporator (chiller). It can be seen that the external evaporator is involved in both the refrigerant flow and the coolant flow. There is both refrigerant and coolant passing through it. Heat exchange occurs between the refrigerant and the coolant to achieve heat exchange between the refrigerant flow path and the coolant flow path, so as to use the refrigerant flow path to cool electrical components outside the passenger compartment (such as batteries and motors), and to recover the waste heat of the electrical components outside the passenger compartment.

[0083] Similar to a refrigeration and heating air conditioner, by reversing the refrigerant, the functions of the evaporator and condenser of the air conditioner can be interchanged. Similarly, the functions of the external evaporator and the external condenser can also be interchanged, that is: the external evaporator can also be used as a condenser, while the external condenser is used as an evaporator. When the external evaporator is connected in series in the battery thermal management flow path, the external evaporator can be used not only to cool the battery but also to heat the battery.

[0084] Among them, the external condenser can be a liquid-cooled condenser (Liquid Cooled condensor, abbreviated as LCC), that is, the refrigerant is condensed by exchanging heat with a liquid. Therefore, this form of external condenser (liquid-cooled condenser) also needs to participate in the coolant flow path like the external evaporator (chiller). Since using the refrigerant to heat electrical components outside the passenger compartment (such as batteries and motors) also requires the heat exchange between the refrigerant and the coolant in the external condenser, and then the coolant flows to the component to be heated to achieve it, this system can be called a semi-indirect system.

[0085] Or, the external condenser can also be an air-cooled condenser (the same as the passenger compartment condenser, which realizes condensation through the heat exchange between the refrigerant and the surrounding gas). This form of external condenser does not need to participate in the coolant flow path like the external evaporator (chiller), and can directly blow the heat to the component to be heated (such as the battery) to directly heat the component to be heated. Therefore, this system can be called a direct system. Compared with the semi-indirect system, the heat pump efficiency of the direct system is high.

[0086] For the direct system, multiple control valves usually need to be used in combination (such as a five-way valve combined with a three-way valve) to meet the switching requirements of the working mode.

[0087] For the semi-indirect system, the coolant flow path of the thermal management system is significantly more complex, and more control valves or integrated control valves with more complex structures (such as eight-way valves) are required to meet the switching requirements of the coolant flow path, and the integrated control valves often have the problem of gear skipping.

[0088] Such as Figures 30 to 34As shown in the figure, an embodiment of the present application provides a coolant path integrated seat 200, including: a five-way valve connection part 44, a motor thermal management flow path connection part 41, a battery thermal management flow path connection part 42, and a radiator connection part 43.

[0089] As Figure 31 and Figure 32 As shown in the figure, the five-way valve connection part 44 is provided with five transition grooves separated from each other, and the five transition grooves are set to be in one-to-one correspondence and communication with the five channels of the five-way valve 100. The five-way valve 100 is a three-position five-way valve with three working modes. The motor thermal management flow path connection part 41 is provided with a first inlet 411 and a first outlet 412. The battery thermal management flow path connection part 42 is provided with a second inlet 421 and a second outlet 422. The radiator connection part 43 is provided with a third inlet 431 and a third outlet 432.

[0090] Among them, the first inlet 411, the first outlet 412, the second inlet 421, the second outlet 422, and the third outlet 432 are respectively in one-to-one correspondence and communication with the five transition grooves, and the third inlet 431 is in communication with the first outlet 412.

[0091] The coolant path integrated seat 200 provided by the embodiment of the present application includes a five-way valve connection part 44, a motor thermal management flow path connection part 41, a battery thermal management flow path connection part 42, and a radiator connection part 43. The five-way valve connection part 44 can be connected to a three-position five-way valve with three working modes. The motor thermal management flow path connection part 41 can be connected to the components of the motor thermal management flow path, the battery thermal management flow path connection part 42 can be connected to the components of the battery thermal management flow path, and the radiator connection part 43 can be connected to the radiator 57.

[0092] Since the five transition grooves of the five-way valve connection part 44 can be in one-to-one correspondence and communication with the five channels of the five-way valve 100, the first inlet 411 and the first outlet 412 can be in correspondence and communication with two transition grooves, the second inlet 421 and the second outlet 422 can be in correspondence and communication with two other transition grooves, the third outlet 432 can be in correspondence and communication with the remaining one transition groove, and the third inlet 431 can be in communication with the first outlet 412.

[0093] Therefore, the coolant path integrated seat 200 of this solution can achieve the integrated installation of the five-way valve 100, the motor thermal management flow path, the battery thermal management flow path, and the radiator 57, which is beneficial to simplifying the structure of the thermal management system and reducing production costs.

[0094] Compared with installing multiple control valves to switch the working mode of the coolant flow path of the thermal management system, this solution can switch the coolant flow path of the thermal management system between three working modes by installing one five-way valve 100, so it is beneficial to simplify the structure and the electronic control method of the thermal management system, and thus reduce production costs.

[0095] Moreover, compared with a control valve in an integrated form, such as an eight-way valve, the five-way valve 100 has a simpler structure. At approximately the same volume, the cross-sectional area of the flow channel of the five-way valve 100 can be made larger, thus reducing the operating flow resistance. In addition, for the five-way valve 100 in this solution, three valve positions correspond to three working modes, and there is no problem of gear skipping.

[0096] In addition, an eight-way valve is not applicable to a direct system, while the five-way valve 100 and the coolant path integrated seat 200 of this application can be applied to a direct system, which is beneficial to reducing the number of control valves in the direct system and further simplifying the structure of the thermal management system.

[0097] In one example, when the five-way valve 100 is in the first working mode, the first inlet 411 is connected to the second outlet 422 through the five-way valve 100, and the third outlet 432 is connected to the second inlet 421 through the five-way valve 100. Since the first outlet 412 is connected to the third inlet 431, the motor thermal management flow path, the radiator 57, and the battery thermal management flow path are connected end to end to form a closed loop, as Figure 25 shown. In this mode, the radiator 57 can be used to cool both the battery and the motor simultaneously.

[0098] When the five-way valve 100 is in the second working mode, the first outlet 412 is connected to the second inlet 421 through the five-way valve 100, and the second outlet 422 is connected to the first inlet 411 through the five-way valve 100. The motor thermal management flow path and the battery thermal management flow path are connected end to end to form a closed loop, as Figure 27 shown. In this mode, the waste heat of the motor can be used to heat the battery.

[0099] When the five-way valve 100 is in the third working mode, the first inlet 411 is connected to the third outlet 432 through the five-way valve 100, and the second inlet 421 is connected to the second outlet 422 through the five-way valve 100. Since the first outlet 412 is connected to the third inlet 431, the motor thermal management flow path and the radiator 57 are connected in series to form a closed loop, and the battery thermal management flow path forms a separate closed loop, as Figure 29 shown. In this mode, the radiator 57 can be used to cool the motor, and the out-of-cabin evaporator 54 (chiller) can be used to cool the battery, that is: the motor and the battery are cooled separately.

[0100] In summary, when the five-way valve 100 is in the first working mode, the battery thermal management flow path, the radiator 57, and the battery thermal management flow path can operate in series, as Figure 25 shown; when the five-way valve 100 is in the second working mode, the motor thermal management flow path and the battery thermal management flow path can operate in series, as Figure 27As shown; when the five-way valve 100 is in the third working mode, the motor thermal management flow path and the radiator 57 are in series operation, and the battery thermal management flow path operates independently, which is equivalent to forming two parallel flow paths, as Figure 29 shown.

[0101] These three working modes basically cover various situations of the series-parallel flow paths of the coolant flow path of the thermal management system. By matching with the refrigerant flow path, the thermal management system can have a rich variety of functional modes, and thus can meet the requirements of various working modes such as refrigeration, heating, and waste heat recovery of the thermal management system. Therefore, the five-way valve 100 provided in the embodiment of the present application can replace multiple control valves or more complex integrated control valves (such as eight-way valves), and is applied to the thermal management system of an automobile, enabling the thermal management system to not only achieve various working modes such as refrigeration, heating, and waste heat recovery, but also have a simpler and more compact structure, and the electronic control logic is also simpler, which is beneficial to reducing product costs and has great application value and market promotion value.

[0102] In an exemplary embodiment, as Figure 30 and Figure 31 shown, the five transition grooves are distributed in two columns and three rows. The first column is respectively the first transition groove 441, the second transition groove 442, and the third transition groove 443 arranged adjacent to each other in sequence. The second column is respectively the fourth transition groove 444 and the fifth transition groove 445, and the second transition groove 442 and the fourth transition groove 444 are in the same row, and the third transition groove 443 and the fifth transition groove 445 are in the same row.

[0103] The first inlet 411 is communicated with the fifth transition groove 445, the first outlet 412 is communicated with the first transition groove 441, the second inlet 421 is communicated with the second transition groove 442, the second outlet 422 is communicated with the third transition groove 443, the third outlet 432 is communicated with the fourth transition groove 444, and the third inlet 431 is also communicated with the first transition groove 441. Since the third inlet 431 is also communicated with the first transition groove 441, the third inlet 431 and the first outlet 412 can be communicated through the first transition groove 441.

[0104] This solution arranges the five transition grooves in the form of two columns and three rows, making the structure of the five-way valve connection part 44 relatively regular, facilitating processing and forming, and being beneficial to reducing the length and width of the five-way valve connection part 44, thereby reducing the size of the coolant path integrated seat 200, making the thermal management system more compact, and reducing the installation space requirements of the thermal management system.

[0105] Correspondingly, the structure of the five-way valve 100 is also relatively regular, facilitating processing and forming, and also facilitating installation.

[0106] In an exemplary embodiment, when the five-way valve 100 is in the first working mode, the second transition groove 442 communicates with the fourth transition groove 444, and the third transition groove 443 communicates with the fifth transition groove 445, as Figure 25 shown.

[0107] In other words, in this mode, the fifth transition groove 445 and the third transition groove 443 can be connected through the five-way valve 100, so that the first inlet 411 and the second outlet 422 can be connected through the five-way valve 100; the second transition groove 442 and the fourth transition groove 444 can be connected through the five-way valve 100, so that the third outlet 432 and the second inlet 421 can be connected through the five-way valve 100. Therefore, the motor thermal management flow path, the radiator 57, and the battery thermal management flow path are connected end to end to form a closed loop, and the radiator 57 can be used to dissipate heat from both the battery and the motor in this mode.

[0108] When the five-way valve 100 is in the second working mode, the first transition groove 441 communicates with the second transition groove 442, and the third transition groove 443 communicates with the fifth transition groove 445, as Figure 27 shown.

[0109] In other words, in this mode, the first transition groove 441 and the second transition groove 442 can be connected through the five-way valve 100, so that the first outlet 412 and the second inlet 421 can be connected through the five-way valve 100; the third transition groove 443 and the fourth transition groove 444 can be connected through the five-way valve 100, so that the second outlet 422 and the first inlet 411 can be connected through the five-way valve 100. Therefore, the motor thermal management flow path and the battery thermal management flow path are connected end to end to form a closed loop, and the waste heat of the motor can be used to heat the battery in this mode.

[0110] When the five-way valve 100 is in the third working mode, the second transition groove 442 communicates with the third transition groove 443, and the fourth transition groove 444 communicates with the fifth transition groove 445, as Figure 29 shown.

[0111] In other words, in this mode, the fourth transition groove 444 and the fifth transition groove 445 can be connected through the five-way valve 100, so that the first inlet 411 and the third outlet 432 can be connected through the five-way valve 100; the second transition groove 442 and the third transition groove 443 can be connected through the five-way valve 100, so that the second inlet 421 and the second outlet 422 can be connected through the five-way valve 100. Therefore, the motor thermal management flow path and the radiator 57 are connected in series to form a closed loop. The battery thermal management flow path forms a closed loop alone. In this mode, the radiator 57 can be used to cool the motor, and the out-of-cabin evaporator 54 (chiller) can be used to cool the battery, that is: the motor and the battery are cooled separately.

[0112] In an exemplary embodiment, asFigure 30 and Figure 31 As shown in Figure 31 , the motor heat management flow path connection part 41 includes a first water pump connection part 413, a motor inlet pipe joint 4141, and a motor outlet pipe joint 4142. The first water pump connection part 413 is provided with a first water pump inlet 4131 and a first water pump outlet 4132. The first water pump outlet 4132 is communicated with the motor inlet pipe joint 4141, the first water pump inlet 4131 is communicated with the first inlet 411, and the port of the motor outlet pipe joint 4142 forms a first outlet 412.

[0113] The first water pump connection part 413 is used to connect the first water pump 51 of the motor heat management flow path, and the first water pump 51 is used to drive the coolant in the motor heat management flow path to flow. The motor inlet pipe joint 4141 is used to connect the inlet end of the motor heat exchange flow path 56, and the motor outlet pipe joint 4142 is used to connect the outlet end of the motor heat exchange flow path 56. The motor heat exchange flow path 56 is located inside the motor and exchanges heat with the components inside the motor.

[0114] During assembly, the first water pump 51 is installed at the first water pump connection part 413, the motor inlet pipe joint 4141 is docked with the outlet end of the motor heat exchange flow path 56, and the motor outlet pipe joint 4142 is docked with the outlet end of the motor heat exchange flow path 56.

[0115] In one example, as Figure 31 shown in Figure 31 , the first water pump connection part 413 includes a circular base 4133 and a lug 4136. The side wall of the circular base 4133 is provided with a first notch 4134 and a second notch 4135. The lug 4136 is connected at the second notch 4135 and is provided with a groove communicated with the second notch 4135. The motor inlet pipe joint 4141 is axially docked and communicated with the groove of the lug 4136 along the circular base 4133. A U-shaped rib 4137 is arranged in the circular base 4133. The U-shaped opening of the U-shaped rib 4137 is docked and communicated with the first notch 4134. The thickness of the U-shaped rib 4137 is less than the height of the side wall of the circular base 4133. As Figure 32 shown in Figure 32 , it is ensured that the coolant entering through the first notch 4134 can cross the U-shaped rib 4137 to reach the second notch 4135. The first water pump connection part 413 can install the centrifugal first water pump 51.

[0116] In an exemplary embodiment, as Figures 30 to 33 shown in Figures 30 to 33 , the motor heat management flow path connection part 41 further includes a water kettle connection part 415. The water kettle connection part 415 is provided with a water kettle inlet 4151 and a water kettle outlet 4152. The water kettle inlet 4151 forms the first inlet 411, and the water kettle outlet 4152 is communicated with the first water pump inlet 4131.

[0117] The water kettle connecting part 415 is used to connect the water kettle 58, and the water kettle 58 can discharge the gas in the coolant, alleviating the high-temperature expansion phenomenon of the coolant flow path. In the motor thermal management flow path, the first water pump 51 can drive the coolant in the pipeline to flow, enabling the coolant to enter the motor heat exchange flow path 56 inside the motor to cool the motor.

[0118] During assembly, dock the water kettle 58 with the water kettle connecting part 415. In this way, the water kettle 58, the first water pump 51, and the motor heat exchange flow path 56 can be connected in sequence.

[0119] In an exemplary embodiment, as Figure 30 shown, the motor thermal management flow path connecting part 41 further includes an ascending flow channel 416 and a descending flow channel 417. The upper end of the ascending flow channel 416 is connected to the upper end of the descending flow channel 417. The water kettle connecting part 415 is provided at the intersection of the ascending flow channel 416 and the descending flow channel 417. The water kettle inlet 4151 is connected to the corresponding transition groove through the ascending flow channel 416. The water kettle outlet 4152 is connected to the first water pump inlet 4131 through the descending flow channel 417.

[0120] By setting the ascending flow channel 416 and the descending flow channel 417, the position of the water kettle connecting part 415 can be relatively high. In this way, the position of the water kettle 58 is also relatively high after installation, which is beneficial to the smooth exhaust of the water kettle 58; and it is convenient to make full use of the space below the water kettle connecting part 415 to reasonably arrange the first water pump connecting part 413, thereby improving the compactness of the coolant path integration seat 200.

[0121] In an exemplary embodiment, as Figure 30 and Figure 31 shown, a flow dividing plate 418 extending along the flow direction of the ascending flow channel 416 is provided in the ascending flow channel 416. The flow dividing plate 418 divides the ascending flow channel 416 into a water kettle flow channel 4161 and a water pump flow channel 4162. As Figure 31 shown, the water kettle flow channel 4161 is connected to the water kettle inlet 4151, the water pump flow channel 4162 is connected to the first water pump inlet 4131 through the descending flow channel 417, and the minimum flow cross-sectional area of the water pump flow channel 4162 is larger than the minimum flow cross-sectional area of the water kettle flow channel 4161.

[0122] In this way, the first water pump inlet 4131 is connected to both the water kettle outlet 4152 and the water pump flow channel 4162. The coolant entering the ascending flow channel 416 can be divided into two paths. The first path enters the water kettle 58 through the water kettle flow channel 4161 for exhaust, and the second path enters the first water pump 51 through the water pump flow channel 4162. Moreover, the liquid in the water kettle 58 can also enter the first water pump 51 through the water kettle outlet 4152 and the descending flow channel 417, preventing the liquid in the water kettle 58 from continuously increasing.

[0123] Since the minimum flow cross-sectional area of the water pump flow passage 4162 is larger than that of the kettle flow passage 4161, the water flow rate of the water pump flow passage 4162 will be greater than the minimum cross-sectional area of the kettle flow passage 4161. In this way, relatively less coolant enters the kettle 58 in the rising flow passage 416, while relatively more coolant enters the first water pump 51. This can keep a small amount of coolant entering the kettle 58, which can not only discharge air but also reduce flow resistance and noise.

[0124] In an exemplary embodiment, as Figures 30 to 33 shown, the radiator connection portion 43 includes a radiator inlet pipe joint 433 and a radiator outlet pipe joint 434. The port of the radiator inlet pipe joint 433 forms a third inlet 431, and the port of the radiator outlet pipe joint 434 forms a third outlet 432. The radiator inlet pipe joint 433 is arranged in parallel with the motor outlet pipe joint 4142 and communicates with the same transition groove.

[0125] In this way, the radiator inlet pipe joint 433 can be connected to the motor outlet pipe joint 4142 through the transition groove, so that the connecting pipe between the radiator inlet pipe joint 433 and the motor outlet pipe joint 4142 can be omitted, thereby further improving the compactness of the coolant path integration seat 200 and further simplifying the structure of the thermal management system.

[0126] During assembly, the radiator inlet pipe joint 433 is butted against the inlet end of the radiator 57, and the radiator outlet pipe joint 434 is butted against the outlet end of the radiator 57. In this way, the kettle 58, the first water pump 51, the motor heat exchange flow path 56, and the radiator 57 are connected in sequence.

[0127] In an exemplary embodiment, as Figure 30 and Figure 31 shown, the motor inlet pipe joint 4141 and the motor outlet pipe joint 4142 are located on both sides of the five-way valve connection portion 44. The radiator outlet pipe joint 434 is located between the motor outlet pipe joint 4142 and the kettle connection portion 415.

[0128] The motor inlet pipe joint 4141 is connected to the lug 4136 of the first water pump connection part 413. The water pump inlet of the first water pump connection part 413 is communicated with the fifth transition groove 445 of the five-way valve connection part 44. The motor outlet pipe joint 4142 is communicated with the first transition groove 441 of the five-way valve connection part 44. And the first transition groove 441 is located in the first column, and the fifth transition groove 445 is located in the second column. Therefore, the motor inlet pipe joint 4141 and the motor outlet pipe joint 4142 are arranged on both sides of the five-way valve connection part 44. Specifically, the motor inlet pipe joint 4141 is arranged on the side where the fifth transition groove 445 is located, and the motor outlet pipe joint 4142 is arranged on the side where the first transition groove 441 is located. The layout is relatively reasonable, which is convenient for the flow channel setting between the motor inlet pipe joint 4141 and the fifth transition groove 445, and is also convenient for the flow channel setting between the motor outlet pipe joint 4142 and the first transition groove 441, avoiding the phenomenon of flow channel pipeline crossing, and further optimizing the architecture layout of the thermal management system.

[0129] Since the radiator outlet pipe joint 434 is communicated with the fourth transition groove 444 of the five-way valve connection part 44, and the fourth transition groove 444 is located in the second column, and there is a vacant area between the fourth transition groove 444 and the first transition groove 441, the radiator outlet pipe joint 434 is arranged between the motor outlet pipe joint 4142 and the motor inlet pipe joint 4141, which is convenient for utilizing the vacant area and making the structure of the coolant path integration seat 200 more compact.

[0130] On the other hand, since the inlet end and the outlet end of the motor heat exchange flow path 56 are generally located at both axial ends of the motor, arranging the motor inlet pipe joint 4141 and the motor outlet pipe joint 4142 on both sides of the five-way valve connection part 44 is convenient for increasing the distance between the motor inlet pipe joint 4141 and the motor outlet pipe joint 4142, matching the general structure of the motor, and the layout is relatively reasonable.

[0131] In one example, as Figure 31 and Figure 32 shown, the motor inlet pipe joint 4141 and the motor outlet pipe joint 4142 are flush in the horizontal direction. This is convenient for the horizontal installation of the motor. The radiator inlet pipe joint 433 is located below the motor inlet pipe joint 4141, as Figure 31 shown, and is arranged in parallel with the motor inlet pipe joint 4141.

[0132] In an exemplary embodiment, as Figures 30 to 33As shown, the battery thermal management flow path connection part 42 includes a second water pump connection part 423, a battery inlet pipe joint 4261, a battery outlet pipe joint 4262, an external cabin evaporator inlet pipe joint 4251, and an external cabin evaporator outlet pipe joint 4252. The second water pump connection part 423 is provided with a second water pump inlet 4231 and a second water pump outlet 4232. The second water pump inlet 4231 forms a second inlet 421, and the port of the battery outlet pipe joint 4262 forms a second outlet 422.

[0133] The second water pump connection part 423 is used to connect the second water pump 52 of the battery thermal management flow path, and the second water pump 52 is used to drive the coolant in the battery thermal management flow path to flow. The battery inlet pipe joint 4261 is used to connect the inlet end of the battery heat exchange flow path 55, and the battery outlet pipe joint 4262 is used to connect the outlet end of the battery heat exchange flow path 55. The battery heat exchange flow path 55 flows through the battery interior and exchanges heat with the components inside the battery. The external cabin evaporator inlet pipe joint 4251 is used to connect the inlet end of the external cabin evaporator 54, and the external cabin evaporator outlet pipe joint 4252 is used to connect the outlet end of the external cabin evaporator 54. The external heat exchanger can use the heat exchange between the refrigerant and the coolant to cool the battery.

[0134] Among them, the pipe connection of the second water pump connection part 423 is similar to the structure of the first water pump connection part 413, and will not be elaborated here.

[0135] In an exemplary embodiment, as Figures 30 to 33 shown, the battery thermal management flow path connection part 42 further includes a coolant heater inlet pipe joint 4241 and a coolant heater outlet pipe joint 4242. The second water pump outlet 4232 is communicated with the coolant heater inlet pipe joint 4241, the coolant heater outlet pipe joint 4242 is communicated with the external cabin evaporator inlet pipe joint 4251, and the external cabin evaporator outlet pipe joint 4252 is communicated with the battery inlet pipe joint 4261.

[0136] The coolant heater inlet pipe joint 4241 is used to connect the inlet end of the coolant heater 53, and the coolant heater outlet pipe joint 4242 is used to connect the outlet end of the coolant heater 53. The coolant heater 53 can heat the coolant in the battery thermal management flow path and play a role in heating the battery. Since the thermal management systems of most new energy vehicles include the coolant heater 53, the universality of this solution is relatively high, and it is more stable and reliable. The coolant heater 53 can be a PTC heater. The positions of the coolant heater 53 and the external heat exchanger can be swapped.

[0137] During assembly, install the second water pump 52 at the second water pump connection part 423. Connect the battery inlet pipe joint 4261 to the inlet end of the battery heat exchange flow path 55, and connect the battery outlet pipe joint 4262 to the outlet end of the battery heat exchange flow path 55. Connect the coolant heater inlet pipe joint 4241 to the inlet end of the coolant heater 53, and connect the coolant heater outlet pipe joint 4242 to the outlet end of the coolant heater 53. Connect the out-of-cabin evaporator inlet pipe joint 4251 to the coolant inlet end of the out-of-cabin evaporator 54, and connect the out-of-cabin evaporator outlet pipe joint 4252 to the coolant outlet end of the out-of-cabin evaporator 54. In this way, the second water pump 52, the coolant heater 53, the out-of-cabin evaporator 54, and the battery heat exchange flow path 55 are connected in sequence.

[0138] Of course, the battery thermal management flow path connection part 42 may also include a water kettle connection part 415, and the water kettle connection part 415 is arranged on the upstream side of the second water pump connection part 423. When the battery thermal management flow path connection part 42 includes the water kettle connection part 415, the water kettle 58 in the motor thermal management flow path connection part 41 can also be cancelled.

[0139] In an exemplary embodiment, as Figure 30 and Figure 31 shown, the battery thermal management flow path connection part 42 and the first water pump connection part 413 are located on both sides of the five-way valve connection part 44. This can reasonably utilize the space on both sides of the five-way valve connection part 44, making the structure of the coolant path integration seat 200 compact and balanced.

[0140] As Figure 30 and Figure 31 shown, the battery thermal management connection part further includes an extension flow channel 427, and the second water pump inlet 4231 is connected to the corresponding transition groove through the extension flow channel 427. The motor outlet pipe joint 4142 is located between the second water pump connection part 423 and the five-way valve connection part 44, and is located on one side of the width direction of the extension flow channel 427.

[0141] As Figure 30 and Figure 31 shown, the coolant heater inlet pipe joint 4241, the coolant heater outlet pipe joint 4242, the out-of-cabin evaporator inlet pipe joint 4251, the out-of-cabin evaporator outlet pipe joint 4252, the battery inlet pipe joint 4261, and the battery outlet pipe joint 4262 are located on the other side of the width direction of the extension flow channel 427.

[0142] In this way, the coolant heater inlet pipe joint 4241, the coolant heater outlet pipe joint 4242, the out-of-cabin evaporator inlet pipe joint 4251, the out-of-cabin evaporator outlet pipe joint 4252, the battery inlet pipe joint 4261, and the battery outlet pipe joint 4262 are roughly located in the same area and are arranged relatively compactly.

[0143] Since the motor outlet pipe joint 4142 communicates with the first transition groove 441, the second water pump inlet 4231 of the second water pump connection part 423 communicates with the second transition groove 442 through the extension flow channel 427, and the battery outlet pipe joint 4262 communicates with the third transition groove 443. The first transition groove 441, the second transition groove 442, and the third transition groove 443 are located in the same column and are arranged adjacent to each other in sequence. Therefore, the motor outlet pipe joint 4142 and the battery outlet pipe joint 4262 are arranged on both sides of the extension flow channel 427 in the width direction. Specifically, the position of the motor outlet pipe joint 4142 is higher and closer to the first transition groove 441, and the position of the battery outlet pipe joint 4262 is lower and closer to the third transition groove 443. The extension flow channel 427 can also be directly connected to the opening on the side wall of the second transition groove 442.

[0144] In this way, the connection between the transition grooves in the first column and the motor outlet pipe joint 4142, the extension flow channel 427, and the battery outlet pipe joint 4262 is relatively convenient, and it is not easy to have the phenomenon of cross-flow channel pipes, and the structure is relatively compact. The other pipe joints of the battery management flow path (coolant heater inlet pipe joint 4241, coolant heater outlet pipe joint 4242, out-of-cabin evaporator inlet pipe joint 4251, out-of-cabin evaporator outlet pipe joint 4252, battery inlet pipe joint 4261) and the battery outlet pipe joint 4262 are arranged on the same side of the extension flow channel 427, which not only makes reasonable use of the space below the second water pump connection part 423 and the extension flow channel 427, but also facilitates the connection between these pipe joints, and the structure is compact.

[0145] Moreover, the inlet end and the outlet end of the coolant heater 53 are generally arranged together, the coolant inlet end and the coolant outlet end of the out-of-cabin evaporator 54 are also arranged together, and the inlet end and the outlet end of the battery heat exchange flow path 55 are also arranged together. The above layout is beneficial to avoiding the cross of the flow channel pipes of the battery thermal management flow path and the flow channel pipes of the motor thermal management flow path, facilitating the docking between the coolant path integration seat 200 and the coolant heater 53, the out-of-cabin evaporator 54 and the battery, and also beneficial to avoiding the interference between the components of the motor thermal management flow path and the components of the motor thermal management flow path.

[0146] In this way, the overall structure of the coolant path integration seat 200 is relatively compact, and the layout is reasonable and ingenious.

[0147] In an exemplary embodiment, as Figure 30 and Figure 31 shown, the opening directions of the coolant heater inlet pipe joint 4241, the coolant heater outlet pipe joint 4242, the battery inlet pipe joint 4261, and the battery outlet pipe joint 4262 are the same as the notch direction of the transition groove. The opening directions of the out-of-cabin evaporator inlet pipe joint 4251 and the out-of-cabin evaporator outlet pipe joint 4252 are opposite to the notch direction of the transition groove.

[0148] In this way, the coolant heater 53, the battery, and the five-way valve 100 can be installed on the same side in the thickness direction of the coolant path integrated base 200, while the out-of-cabin evaporator 54 is installed on the other side in the thickness direction of the coolant path integrated base 200. This not only rationally utilizes the space on both sides of the coolant path integrated base 200 but also facilitates the connection between the out-of-cabin evaporator 54 and the components related to the refrigerant flow path of the thermal management system.

[0149] In one example, as Figure 30 and Figure 31 shown, the opening directions of the motor inlet pipe joint 4141, the motor outlet pipe joint 4142, the radiator inlet pipe joint 433, and the radiator outlet pipe joint 434 are the same as the notch direction of the transition groove.

[0150] In this way, the motor and the radiator 57 can also be installed on the same side in the thickness direction of the coolant path integrated base 200 as the five-way valve 100. This is not only beneficial to improving the compactness of the thermal management system but also beneficial to avoiding interference between the components related to the coolant flow path and the components related to the refrigerant flow path, and thus beneficial to the architecture layout of the thermal management system.

[0151] In an exemplary embodiment, as Figure 30 and Figure 31 shown, the coolant heater inlet pipe joint 4241, the coolant heater outlet pipe joint 4242, the out-of-cabin evaporator inlet pipe joint 4251, the out-of-cabin evaporator outlet pipe joint 4252, the battery inlet pipe joint 4261, and the battery outlet pipe joint 4262 are provided on the same side of the five-way valve connection part 44 and are arranged in sequence along the direction close to the five-way valve connection part 44.

[0152] In this way, the coolant heater outlet pipe joint 4242 is relatively close to the out-of-cabin evaporator inlet pipe joint 4251, facilitating connection; the out-of-cabin evaporator outlet pipe joint 4252 is relatively close to the battery inlet pipe joint 4261, facilitating connection; the battery outlet pipe joint 4262 is relatively close to the third transition groove 443 of the five-way valve connection part 44, facilitating connection.

[0153] In an exemplary embodiment, as Figure 34 shown, the coolant path integrated base 200 includes: a first bottom plate 202, a second bottom plate 204, and a third bottom plate 206.

[0154] Among them, the first bottom plate 202 includes a part of the five-way valve connection part 44, a part of the motor thermal management flow path connection part 41, a part of the battery thermal management flow path connection part 42, and a part of the radiator connection part 43. A plurality of flow channel openings are provided on both sides in the thickness direction of the first bottom plate 202.

[0155] The second bottom plate 204 is connected to the first bottom plate 202 and covers the flow channel opening on one side in the thickness direction of the first bottom plate 202.

[0156] The third bottom plate 206 is connected to the first bottom plate 202 and covers the flow channel opening on the other side in the thickness direction of the first bottom plate 202.

[0157] In this way, the coolant path integration seat 200 can be welded together through three bottom plates. The number of welded parts is small, which is convenient for processing and forming.

[0158] Among them, the flow channel openings covered by the second bottom plate 204 include: the opening of the rising flow channel 416, the opening of the falling flow channel 417, the flow channel opening of the lug 4136 of the first water pump connection part 413, the flow channel opening between the radiator inlet pipe joint 433 and the motor outlet pipe joint 4142 and the first transition groove 441, the flow channel opening between the radiator outlet pipe joint 434 and the fourth transition groove 444, the opening of the extended flow channel 427, the flow channel opening of the lug 4136 of the second water pump connection part 423, the opening of the flow channel between the coolant heater outlet pipe joint 4242 and the out-of-cabin evaporator inlet pipe joint 4251 on this side, the opening of the flow channel between the out-of-cabin evaporator outlet pipe joint 4252 and the battery inlet pipe joint 4261 on this side, and the flow channel opening between the battery outlet pipe joint 4262 and the third transition groove 443. Since most of these flow channel openings are scattered, some connecting ribs can be used to connect the sealing plates corresponding to these flow channel openings during injection molding to make it an integral structure for welding connection with the first bottom plate 202.

[0159] The flow channel openings covered by the third bottom plate 206 include the opening of the flow channel between the coolant heater outlet pipe joint 4242 and the out-of-cabin evaporator inlet pipe joint 4251 on this side, and the opening of the flow channel between the out-of-cabin evaporator outlet pipe joint 4252 and the battery inlet pipe joint 4261 on this side.

[0160] As Figure 23 shown, the embodiment of the present application also provides a thermal management system, including: a five-way valve 100, a first water pump 51, a second water pump 52, and a coolant path integration seat 200 according to any one of the above embodiments.

[0161] As Figure 35 、 Figure 36 、 Figure 37 、 Figure 38 and Figure 39 shown, the five-way valve 100 is connected to the five-way valve connection part 44, the first water pump 51 is connected to the motor thermal management flow path connection part 41, and the second water pump 52 is connected to the battery thermal management flow path connection part 42.

[0162] The thermal management system provided by the embodiments of the present application includes the coolant path integrated seat 200 in any one of the above embodiments, and thus has all the beneficial effects of any one of the above embodiments, which will not be elaborated herein.

[0163] In an exemplary embodiment, as Figure 35 and Figure 39 shown, the thermal management system further includes a water kettle 58 (as Figure 40 shown) and a coolant heater 53. The water kettle 58 is connected in series with the first water pump 51, and the coolant heater 53 is connected in series with the second water pump.

[0164] Among them, the water kettle 58 is connected to the kettle connection part 415 of the motor thermal management flow path connection part 41. The inlet end of the coolant heater 53 is connected to the coolant heater inlet pipe joint 4241 of the battery thermal management flow path connection part 42, and the outlet end of the coolant heater 53 is connected to the coolant heater outlet pipe joint 4242 of the battery thermal management flow path connection part 42.

[0165] An exhaust port 581 is provided at the top of the water kettle 58, and a baffle plate 582 for increasing the flow path between the kettle inlet 4151 and the exhaust port 581 is provided in the water kettle 58, as Figure 42 shown.

[0166] In this solution, by providing the baffle plate 582 in the water kettle 58, the exhaust process can be increased, which is beneficial to improving the exhaust effect of the water kettle 58.

[0167] In an example, the water kettle 58 is connected to the kettle connection part 415 by fusion welding, which can eliminate the O-ring between the water kettle 58 and the kettle connection part 415, and effectively ensure that the water kettle 58 does not leak coolant.

[0168] In an example, a water level sensor 583 is further provided at the top of the water kettle 58, as Figure 39 shown, for detecting the water level in the water kettle 58.

[0169] In an exemplary embodiment, at least a part of the baffle plate 582 is provided as a porous plate, as Figure 37 shown.

[0170] Setting at least a part of the baffle plate 582 as a porous plate enables the gas in the coolant to be discharged upward through the porous plate, which is also beneficial to improving the exhaust effect.

[0171] In an example, as Figure 37 、 Figure 41 and Figure 42As shown, the flow deflector 582 includes a first sub-plate 5821, a second sub-plate 5822, and a third sub-plate 5823. One end of the first sub-plate 5821 is located inside the inlet of the kettle 58 and divides the kettle pipe joint into an inlet and an outlet. One end of the second sub-plate 5822 is connected to the other end of the first sub-plate 5821, and a first flow passage is formed between the other end of the second sub-plate 5822 and the first side wall 5841 of the kettle 58. The third sub-plate 5823 is located above the second sub-plate 5822, and one end of the third sub-plate 5823 is connected to the first side wall 5841 of the kettle 58, and a second flow passage is formed between the other end of the third sub-plate 5823 and the second side wall 5842 of the kettle 58. The distance between the exhaust port 581 and the first side wall 5841 is less than the distance between the exhaust port 581 and the second side wall 5842. The third sub-plate 5823 is provided as a perforated plate. Of course, the second sub-plate 5822 can also be provided as a perforated plate.

[0172] In an exemplary embodiment, as Figure 1 , Figure 2 , Figure 3 and Figure 22 shown, the five-way valve 100 includes: a housing 1 and a valve core 2.

[0173] Among them, as Figure 4 shown, the housing 1 is provided with a valve cavity 1111 and five channels communicating with the valve cavity 1111. The valve core 2 (as Figure 6 and Figure 7 shown) is at least partially disposed in the valve cavity 1111 and is configured to rotate relative to the housing 1 between a first position (as Figure 24 shown), a second position (as Figure 26 shown), a third position (as Figures 12 to 21 and Figure 28 shown) to control the communication relationship between the five channels so that the five-way valve 100 can be switched between a first working mode, a second working mode, and a third working mode.

[0174] The five-way valve 100 provided by the embodiment of the present application includes a housing 1 and a valve core 2. A valve cavity 1111 is provided inside the housing 1 to provide space for the assembly and movement of the valve core 2. The housing 1 is further provided with five channels communicating with the valve cavity 1111 for connecting with relevant components of the thermal management system to switch the flow direction of the coolant flow path in the thermal management system. The valve core 2 is installed in the valve cavity 1111 and has three working positions, namely a first position, a second position, and a third position. When the valve core 2 rotates to different working positions, the communication relationship between the five channels will change, thereby switching the working mode of the five-way valve 100 and further switching the working mode of the thermal management system.

[0175] In other words, the five-way valve 100 provided in the embodiments of the present application has three valve positions and correspondingly three working modes. When the valve core 2 is in the first position, the five-way valve 100 is in the first valve position, as Figure 24 shown, and operates in the first working mode. When the valve core 2 is in the second position, the five-way valve 100 is in the second valve position, as Figure 26 shown, and operates in the second working mode. When the valve core 2 is in the third position, the five-way valve 100 is in the third valve position, as Figure 28 shown, and operates in the third working mode.

[0176] Compared with setting multiple control valves to switch the working modes of the coolant flow path of the thermal management system, in this solution, by controlling one five-way valve 100, the coolant flow path of the thermal management system can be switched between three working modes, which is beneficial to simplifying the structure and the electronic control method of the thermal management system, and further reducing the production cost.

[0177] Moreover, compared with the control valve in an integrated form, such as an eight-way valve, the structure of the five-way valve 100 is simpler. At approximately the same volume, the cross-sectional area of the flow channel of the five-way valve 100 can be made larger, so the operating flow resistance can be reduced. In addition, for the five-way valve 100 in this solution, the three valve positions correspond to three working modes, and there is no problem of gear skipping.

[0178] In addition, the eight-way valve is not applicable to the direct system, while the five-way valve 100 of the present application can be applied to the direct system, which is beneficial to reducing the number of control valves in the direct system and further simplifying the structure of the thermal management system.

[0179] Among them, only a part of the valve core 2 can be located inside the valve cavity 1111, and the other part protrudes from the valve cavity 1111 for connection with the driving device. The valve core 2 can also be completely located inside the valve cavity 1111, and a part of the driving device can be inserted into the valve cavity 1111 to drive the valve core 2 to rotate.

[0180] In an exemplary embodiment, as Figure 2 、 Figure 3 and Figure 16 shown, the five channels are axially distributed in two rows along the valve core 2 and circumferentially distributed in three columns along the valve core 2. The valve core 2 is provided with two axially communicating grooves (i.e., the following first communicating groove 281 and second communicating groove 282, as Figure 17 and Figure 20 shown) and two circumferentially communicating grooves (i.e., the following third communicating groove 283 and fourth communicating groove 284, as Figure 7 and Figure 14 shown). The axially communicating grooves are arranged along the axis of the valve core 2 for conducting two channels located in the same column. The circumferentially communicating grooves are arranged along the circumference of the valve core 2 for conducting two adjacent channels located in the same row.

[0181] In this solution, the five channels of the five-way valve 100 are arranged in a two-row and three-column form, making the structure of the five-way valve 100 relatively regular and facilitating the reduction of the axial dimension and circumferential dimension of the five-way valve 100, thereby reducing the requirement for the installation space of the five-way valve 100 and making the thermal management system more compact.

[0182] Correspondingly, the valve core 2 is provided with two axial communication grooves and two circumferential communication grooves, as Figure 6 and Figure 7 shown.

[0183] Among them, the axial communication grooves extend along the axial direction of the valve core 2 and can be correspondingly communicated with two channels in the same column. When the axial communication grooves are correspondingly communicated with two channels in the same column, these two channels in the same column are conducted through the axial communication grooves. When the two axial communication grooves are simultaneously correspondingly communicated with two columns of channels including two channels, these two columns of channels are each conducted. When the axial communication groove is correspondingly communicated with the column of channels with only one channel, since this channel has no communication relationship with the other four channels, this channel is equivalent to being closed.

[0184] The circumferential communication grooves extend along the circumferential direction of the valve core 2 and can be correspondingly communicated with two adjacent channels in the same row. When the circumferential communication grooves are correspondingly communicated with two adjacent channels in the same row, these two adjacent channels in the same row are conducted through the circumferential communication grooves. When the two circumferential communication grooves are simultaneously correspondingly communicated with two rows of channels, the two adjacent channels in these two rows are each conducted. When the circumferential communication groove is only communicated with one channel, since this channel has no communication relationship with the other four channels, this channel is equivalent to being closed.

[0185] In an exemplary embodiment, as Figure 2 and Figure 3 shown, the three columns of channels are respectively the first column of channels, the second column of channels, and the third column of channels that are adjacent to each other along the circumferential direction of the valve core 2, and the first column of channels includes one channel.

[0186] The two circumferential communication grooves are adjacent to each other along the axial direction of the valve core 2 to form the first column of communication grooves, and the two axial communication grooves are adjacent to each other along the circumferential direction of the valve core 2 to form the second column of communication grooves and the third column of communication grooves.

[0187] The first column of communication grooves is adjacent to the second column of communication grooves along the circumferential direction of the valve core 2, and the arrangement directions of the first column of communication grooves, the second column of communication grooves, and the third column of communication grooves are the same as the arrangement directions of the first column of channels, the second column of channels, and the third column of channels.

[0188] In this solution, since the first column of channels includes one channel, the second column of channels includes two channels, and the third column of channels also includes two channels. In other words, the number of channels in the three adjacent columns of channels is one, two, and two respectively.

[0189] As Figure 6 and Figure 7 shown, the positional relationship between the two axial communication grooves and the two circumferential communication grooves is as follows: the two circumferential communication grooves form the first column, one axial communication groove is the second column, and the other axial communication groove is the third column, and the arrangement directions of the first column communication grooves, the second column communication grooves, and the third column communication grooves are the same as the arrangement directions of the first column channels, the second column channels, and the third column channels.

[0190] In this way, the two axial communication grooves can be simultaneously corresponding and communicating with the second column channels and the third column channels, so that the two channels of the second column channels are connected, and the two channels of the third column channels are connected. The two axial communication grooves can also have only the second column communication groove communicating with the third column channels, while the third column communication groove is not connected to any of the five channels. The two axial communication grooves can also have no connection relationship with the five channels.

[0191] Only one of the two circumferential communication grooves can be connected to the first column channels, while the other has no connection relationship with any of the five channels, which is equivalent to closing the first column channels. The two circumferential communication grooves can also be connected to the first column channels and three channels of the second column channels. At this time, the two channels in the same row in the first column channels and the second column channels are conducted through one of the circumferential communication grooves; the other channel in the second column channels is connected to the other circumferential communication groove, but this channel has no connection relationship with the other four channels, which is equivalent to being closed. The two circumferential communication grooves can also be connected to four channels of the second column channels and the third column channels, then the two channels in the same row in the second column channels and the third column channels are simultaneously conducted.

[0192] Therefore, when the spool 2 is rotated to different positions, the five channels can have the following three connection relationships:

[0193] As Figure 24 shown, when the spool 2 is in the first position, the two axial communication grooves are simultaneously corresponding and communicating with the second column channels and the third column channels, so that the two channels of the second column channels are connected, and the two channels of the third column channels are connected; while the first column communication groove is only connected to one of the circumferential communication grooves, which is equivalent to being closed. This mode can be called the first working mode of the five-way valve 100, as Figure 25 shown.

[0194] As Figure 26As shown in the figure, when the valve core 2 rotates to the second position, only the second column of communication grooves is connected to the third column of channels, while the third column of communication grooves is not connected to any of the five channels. The first column of channels and the two channels in the same row of the second column of channels are connected through one of the circumferential communication grooves; the other channel in the second column of channels is connected to another circumferential communication groove, but this channel has no connection with the other four channels, which is equivalent to being closed. This mode can be called the second working mode of the five-way valve 100, as shown in the figure. Figure 27 shown.

[0195] like Figure 28 As shown in FIG. 1 , when the valve core 2 is in the third position, the two axial connecting grooves may not be connected to any of the five channels. The two channels in the same row of the second channel and the third channel are connected through the two circumferential connecting grooves. This mode can be called the third working mode of the five-way valve 100. Figure 29 shown.

[0196] In this way, the valve core 2 can realize the switching of the three working modes of the five-way valve 100 through a small rotation, without any idle gear. The design is very ingenious and the structure is relatively simple.

[0197] In an exemplary embodiment, Figure 2 and Figure 3 As shown, the five channels are respectively recorded as the first channel 1121, the second channel 1122, the third channel 1123, the fourth channel 1124 and the fifth channel 1125. The first channel 1121, the second channel 1122 and the third channel 1123 are arranged side by side in sequence along the circumference of the valve core 2. The fourth channel 1124 and the fifth channel 1125 are arranged side by side along the circumference of the valve core 2, and the fourth channel 1124 and the second channel 1122 are arranged side by side along the axial direction of the valve core 2, and the fifth channel 1125 and the third channel 1123 are arranged side by side along the axial direction of the valve core 2. The two axial connecting grooves are respectively recorded as the first connecting groove 281 and the second connecting groove 282, and the two circumferential connecting grooves are respectively recorded as the third connecting groove 283 and the fourth connecting groove 284.

[0198] like Figure 24 As shown, when the valve core 2 is in the first position, the first communication groove 281 is connected with the second channel 1122 and the fourth channel 1124, the second communication groove 282 is connected with the third channel 1123 and the fifth channel 1125, and the third communication groove 283 is connected with the first channel 1121. Since the third communication groove 283 is only connected with the first channel 1121, it is equivalent to closing the first channel 1121; the fourth communication groove 284 is not connected with any of the five channels. This mode is the first working mode of the five-way valve 100.

[0199] like Figure 26As shown, when the valve core 2 is in the second position, the third communication groove 283 communicates with the first channel 1121 and the second channel 1122, and the first communication groove 281 communicates with the third channel 1123 and the fifth channel 1125. The second communication groove 282 does not communicate with any of the five channels; the fourth communication groove 284 only communicates with the fourth channel 1124, which is equivalent to closing the fourth channel 1124. This mode is the second working mode of the five-way valve 100.

[0200] As Figure 27 shown, when the valve core 2 is in the third position, the third communication groove 283 communicates with the second channel 1122 and the third channel 1123, and the fourth communication groove 284 communicates with the fourth channel 1124 and the fifth channel 1125. The first communication groove 281 does not communicate with any of the five channels, and the second communication groove 282 also does not communicate with any of the five channels. This mode is the third working mode of the five-way valve 100.

[0201] In this way, the five-way valve 100 has three different working modes. Each time the valve core 2 rotates one gear, a working mode is switched. Then, the coolant flow path of the thermal management system can also have three different working modes, and the flow direction of the liquid in the three working modes can be switched by controlling the five-way valve 100.

[0202] In an exemplary embodiment, the angle at which the valve core 2 rotates from the first position to the second position is denoted as the first angle, and the angle at which the valve core 2 rotates from the second position to the third position is denoted as the second angle. The second angle is equal to the first angle. In this way, the rotation of the valve core 2 can be controlled by a stepper motor.

[0203] In one example, the first angle and the second angle are approximately 60°.

[0204] In an exemplary embodiment, as Figure 6 、 Figure 7 、 Figure 18 and Figure 21 shown, the valve core 2 includes: a transverse partition 25, a first vertical partition 21, a first vertical partition 22, a third vertical partition 23, and a third vertical partition 24.

[0205] Among them, the transverse partition 25 is arranged along the circumferential direction of the valve core 2. The first vertical partition 21, the first vertical partition 22, the third vertical partition 23, and the third vertical partition 24 are all arranged along the axial direction of the valve core 2, and the first vertical partition 21, the first vertical partition 22, the third vertical partition 23, and the third vertical partition 24 are sequentially arranged at intervals along the circumferential direction of the valve core 2.

[0206] An axial communication groove is formed between the first vertical partition plate 22 and the first vertical partition plate 21. Another axial communication groove is formed between the third vertical partition plate 23 and the first vertical partition plate 22. The horizontal partition plate 25 is located between the first vertical partition plate 21 and the third vertical partition plate 23 and is perpendicularly connected to the first vertical partition plate 21, the first vertical partition plate 22, the third vertical partition plate 23, and the third vertical partition plate 24. Moreover, the horizontal partition plate 25 divides the space between the first vertical partition plate 21 and the third vertical partition plate 24 into two circumferential communication grooves.

[0207] In this solution, the valve core 2 includes four vertical partition plates (the first vertical partition plate 21, the first vertical partition plate 22, the third vertical partition plate 23, and the third vertical partition plate 24) and a horizontal partition plate 25. These four vertical partition plates and the horizontal partition plate 25 are spliced together to form two axial communication grooves and four circumferential communication grooves.

[0208] Among them, the axial communication groove between the first vertical partition plate 21 and the first vertical partition plate 22 is the first communication groove 281. The axial communication groove between the first vertical partition plate 22 and the third vertical partition plate 23 is the second communication groove 282. The first vertical partition plate 21, the third vertical partition plate 24, and the horizontal partition plate 25 divide to form two circumferential communication grooves arranged side by side. The one in the same row as the first channel 1121 is the third communication groove 283, and the one not in the same row as the first channel 1121 is the fourth communication groove 284. The two circumferential communication grooves separated by the third vertical partition plate 23, the third vertical partition plate 24, and the horizontal partition plate 25 do not participate in the switching of the connection relationship between the five flow channels.

[0209] With such a setting, the structure of the entire valve core 2 is relatively regular and simple. It is not only convenient for processing and forming, but also has a small weight and less consumption of raw materials, which is beneficial to reducing production costs.

[0210] In one example, the radially inner ends of the four vertical partition plates and the radially inner end of the horizontal partition plate 25 can be directly connected together, and the radially outer ends of the four vertical partition plates are radially distributed.

[0211] In another example, the valve core 2 can also include a connecting shaft located in the center. The radially inner ends of the four vertical partition plates and the radially inner end of the horizontal partition plate 25 are all connected to the side wall surface of the connecting shaft. In this way, it is convenient to directly realize the rotational connection with the housing 1 by using the connecting shaft.

[0212] In one example, the third vertical partition plate 24 includes two vertical sub - plates, and the two vertical sub - plates are respectively located on both sides of the thickness direction of the horizontal partition plate 25 and are respectively connected to the two plate surfaces of the horizontal partition plate 25.

[0213] In another example, the horizontal partition plate 25 includes two horizontal sub - plates, and the two horizontal sub - plates are respectively located on both sides of the thickness direction of the third vertical partition plate 24 and are respectively connected to the two plate surfaces of the third vertical partition plate 24.

[0214] In an exemplary embodiment, asFigure 6 and Figure 7 As shown in Figure 7 , the valve core 2 further includes a first end plate 26 and a second end plate 27. The first end plate 26 and the second end plate 27 are both disposed opposite to the transverse partition plate 25 and are located on both sides of the transverse partition plate 25. Moreover, the first end plate 26 and the second end plate 27 are both fixedly connected to the ends of the first vertical partition plate 21, the ends of the first vertical partition plate 22, the ends of the third vertical partition plate 23, and the ends of the third vertical partition plate 24.

[0215] In this solution, the valve core 2 further includes a first end plate 26 and a second end plate 27. The first end plate 26, the transverse partition plate 25, and the second end plate 27 are sequentially arranged at intervals along the axial direction of the valve core 2. In this way, both the axial communication groove and the circumferential communication groove have only one opening (the opening at the outer radial end), that is, the opening corresponding to the five channels of the housing 1, which is beneficial to improving the sealing performance of the five-way valve 100.

[0216] Of course, the valve core 2 may not include the first end plate 26 and the second end plate 27. For example, the corresponding structure of the housing 1 can be used to ensure the sealing performance of the axial communication groove and the circumferential communication groove.

[0217] In an exemplary embodiment, as Figure 13 and Figure 14 shown, the first end plate 26 is provided with a rotating shaft 261. The rotating shaft 261 is rotatably inserted through the housing 1 and is arranged to be connected to the driving device. The second end plate 27 is provided with a protrusion 271, as Figure 7 shown. The housing 1 is provided with a first annular boss 1112, as Figure 5 shown. The protrusion 271 is rotatably embedded in the first annular boss 1112, as Figure 14 and Figure 15 shown.

[0218] The rotating shaft 261 on the first end plate 26 can penetrate through the housing 1 and be connected to the driving device (such as a motor). Then, by driving the valve core 2 to automatically rotate a set angle through the driving device, the switching of the working mode of the five-way valve 100 can be realized. The rotating shaft 261 can be provided with a gear-shaped protrusion 271 or a non-cylindrical protrusion 271 to facilitate the connection with the driving device. For the solution where the valve core 2 includes a connecting shaft, the rotating shaft 261 can be coaxially connected to the connecting shaft. And the protrusion 271 on the second end plate 27 can be rotatably matched with the first annular boss 1112 provided correspondingly on the housing 1.

[0219] In this way, both axial ends of the valve core 2 can be supported by the housing 1, which is beneficial to the balanced force of the valve core 2, thereby improving the position stability of the valve core 2 and preventing the valve core 2 from tilting, shaking, etc. Moreover, the cooperation between the protrusion 271 on the second end plate 27 and the first annular boss 1112 of the housing 1 can also play a role in assembly positioning, which is beneficial to improving the assembly efficiency of the five-way valve 100.

[0220] In an exemplary embodiment, as Figure 15 shown, along the direction pointing from the radially outer side to the radially inner side of the first annular boss 1112, the end face of the first annular boss 1112 extends obliquely in a direction away from the first end plate 26.

[0221] In this way, the end face of the first annular boss 1112 can function as a guiding inclined plane, facilitating the smooth and rapid insertion of the protrusion 271 on the second end plate 27 into the first annular boss 1112. On the other hand, such a setting can also reduce the contact area between the end face of the annular boss and the second end plate 27, thereby reducing the frictional resistance and being beneficial to the smooth rotation of the valve core 2.

[0222] In an exemplary embodiment, the second end plate 27 is provided with a first limiting rib 272, as Figure 7 shown. The housing 1 is provided with two second limiting ribs 1113 arranged at intervals, as Figure 5 shown. The first limiting rib 272 is located between the two second limiting ribs 1113 and is used to limit the rotation amplitude of the valve core 2 relative to the housing 1.

[0223] In this way, the cooperation between the first limiting rib 272 and one of the second limiting ribs 1113 can limit the rotation amplitude of the valve core 2 in the first direction. The cooperation between the first limiting rib 272 and the other second limiting rib 1113 can limit the rotation amplitude of the valve core 2 in the second direction. The first direction is the direction of rotation of the valve core 2 from the first position to the second position and the third position, and the second direction is the direction of rotation of the valve core 2 from the third position to the second position and the first position.

[0224] In this way, the rotation amplitude of the valve core 2 relative to the housing 1 is limited, which can effectively prevent the valve core 2 from rotating excessively and affecting the normal use of the five-way valve 100, and is beneficial to improving the use reliability of the valve core 2.

[0225] On the other hand, by using the cooperation relationship between the first limiting rib 272 and the two second limiting ribs 1113, the driving device for driving the rotation of the valve core 2 can also be corrected. The driving device may have errors during long-term use, and when the errors accumulate to a certain extent, they will affect the use of the five-way valve 100. Normally, when the valve core 2 is in the first position, the first limiting rib 272 abuts against one of the second limiting ribs 1113; when the valve core 2 is in the third position, the first limiting rib 272 abuts against the other second limiting rib 1113. Therefore, by using this relationship, the driving device can be corrected to avoid the normal use of the five-way valve 100 being affected by the accumulated errors after long-term use of the driving device.

[0226] In an exemplary embodiment, the five-way valve 100 further includes: a first seal 31, as Figure 10 , Figure 17 andFigure 20 As shown, it is located between the valve core 2 and the housing 1 and is adapted to the inner ports of the five channels.

[0227] The setting of the first seal 31 can improve the sealing reliability inside the five-way valve 100. The first seal 31 can be a composite gasket bent into an arc shape, such as Figure 10 shown. The composite gasket is a double-layer structure with an inner layer and an outer layer. The outer layer is a sealing layer (such as a rubber layer), which can be closely attached to the housing 1 to play a sealing role; the inner layer is a smooth layer (such as a metal layer), which can reduce the friction force with the valve core 2 and is beneficial to the smooth rotation of the valve core 2.

[0228] In an exemplary embodiment, the five-way valve 100 further includes: a second seal 32, such as Figure 2 , Figure 3 and Figure 11 shown, which is located outside the housing 1 and is adapted to the outer ports of the five channels.

[0229] The setting of the second seal 32 can improve the sealing reliability between the five-way valve 100 and other components in the coolant flow path of the thermal management system. The second seal 32 can be a flat gasket.

[0230] In an exemplary embodiment, the five-way valve 100 further includes a third seal 33, such as Figure 9 , Figure 13 , Figure 14 shown. The third seal 33 is sleeved on the rotating shaft 261 and abuts against the housing 1 to ensure the sealing reliability between the rotating shaft 261 and the housing 1. The third seal 33 can be an annular gasket.

[0231] In an exemplary embodiment, as Figure 1 , Figure 2 , Figure 12 and Figure 19 shown, the housing 1 includes: a housing body 11 and a valve cover 12. As Figure 4 and Figure 5 shown, the housing body 11 is provided with a valve cavity 1111 and five channels, and one axial end of the valve cavity 1111 is open. The valve cover 12 (as Figure 8 shown) is covered on the open end of the housing body 11 and is rotatably connected to the valve core 2.

[0232] In this solution, the housing 1 is split into the housing body 11 and the valve cover 12, which is convenient for the assembly between the valve core 2 and the housing 1, thereby reducing the assembly difficulty of the five-way valve 100 and improving the assembly efficiency.

[0233] In one example, as Figure 8As shown, the valve cover 12 is provided with a shaft hole 121. The rotating shaft 261 on the first end plate 26 of the valve core 2 is rotatably inserted into the shaft hole 121. A second annular boss 122 can be provided on the outer plate surface of the valve cover 12, as Figure 8 shown. The internal space of the second annular boss 122 is communicated with the shaft hole 121. The third seal 33 is sleeved on the rotating shaft 261 and abuts against the inner end surface of the second annular boss 122, effectively ensuring the sealing reliability between the rotating shaft 261 and the valve cover 12.

[0234] In an exemplary embodiment, as Figure 4 and Figure 5 shown, the housing 11 includes: a cylindrical portion 111 and a protruding portion 112.

[0235] Among them, a valve cavity 1111 is formed inside the cylindrical portion 111, and one axial end of the cylindrical portion 111 is open and connected to the valve cover 12. The protruding portion 112 is connected to the side wall of the cylindrical portion 111 and protrudes radially outward from the cylindrical portion 111. Five channels are provided inside the protruding portion 112, and openings communicating with the five channels one by one are provided on the side wall of the cylindrical portion 111.

[0236] In this solution, the housing 11 includes a cylindrical portion 111 and a protruding portion 112. The cylindrical portion 111 is a hollow structure with one end open and the other end closed. The internal space of the cylindrical portion 111 forms a valve cavity 1111, ensuring the assembly between the valve core 2 and the outer shell 1. The protruding portion 112 is provided with five channels, ensuring the assembly of the five-way valve 100 and other components of the coolant flow path of the thermal management system. At least five openings are provided on the side wall of the cylindrical portion 111, ensuring the communication between the valve cavity 1111 and the five channels.

[0237] In one example, as Figure 5 shown, one end of the protruding portion 112 away from the cylindrical portion 111 is set as a plane, which is convenient for the assembly of the five-way valve 100 and other components (such as the coolant path integration seat 200).

[0238] In one example, along the radially outward direction of the valve core 2, the cross-sectional area of the channel gradually increases, which is beneficial to increasing the flow rate of the channel and further reducing the flow resistance.

[0239] In an exemplary embodiment, as Figure 23 shown, the channels connecting the outlet end (i.e., the first outlet 412) and the inlet end (i.e., the first inlet 411) of the motor thermal management flow path are respectively denoted as the first channel 1121 and the fifth channel 1125, the channels connecting the inlet end (i.e., the second inlet 421) and the outlet end (i.e., the second outlet 422) of the battery thermal management flow path are respectively denoted as the second channel 1122 and the third channel 1123, and the channel connecting the outlet end (i.e., the third outlet 432) of the radiator 57 is denoted as the fourth channel 1124. The inlet end of the radiator 57 is the third inlet 431.

[0240] The first channel 1121, the second channel 1122, and the third channel 1123 are arranged in a row along the circumferential direction of the valve core 2. The fourth channel 1124 and the fifth channel 1125 are arranged in a row along the circumferential direction of the valve core 2. Moreover, the second channel 1122 and the fourth channel 1124 are arranged in a column along the axial direction of the valve core 2, and the third channel 1123 and the fifth channel 1125 are arranged in a column along the axial direction of the valve core 2.

[0241] In this way, as Figure 24 and Figure 25 shown, when the five-way valve 100 is in the first working mode, the second channel 1122 is in communication with the fourth channel 1124, so that the outlet end of the radiator 57 is in communication with the inlet end of the battery thermal management flow path; the third channel 1123 is in communication with the fifth channel 1125, so that the inlet end of the motor thermal management flow path is in communication with the outlet end of the battery thermal management flow path; and the outlet end of the motor thermal management flow path is in communication with the inlet end of the radiator 57. Therefore, the motor thermal management flow path, the radiator 57, and the battery thermal management flow path are connected end to end to form a closed loop. In this mode, the radiator 57 can be used to cool the battery and the motor simultaneously.

[0242] As Figure 26 and Figure 27 shown, when the five-way valve 100 is in the second working mode, the first channel 1121 is in communication with the second channel 1122, so that the outlet end of the motor thermal management flow path is in communication with the inlet end of the battery thermal management flow path; the third channel 1123 is in communication with the fifth channel 1125, so that the outlet end of the battery thermal management flow path is in communication with the inlet end of the motor thermal management flow path. Therefore, the motor thermal management flow path and the battery thermal management flow path are connected end to end to form a closed loop. In this mode, the waste heat of the motor can be used to heat the battery.

[0243] As Figure 28 and Figure 29 shown, when the five-way valve 100 is in the third working mode, the second channel 1122 is in communication with the third channel 1123, so that the outlet end of the battery thermal management flow path is in communication with the inlet end of the motor thermal management flow path; the fourth channel 1124 is in communication with the fifth channel 1125, so that the inlet end of the motor thermal management flow path is in communication with the outlet end of the radiator 57; and the outlet end of the motor thermal management flow path is in communication with the inlet end of the radiator 57. Therefore, the motor thermal management flow path and the radiator 57 are connected in series to form a closed loop. The battery thermal management flow path forms a closed loop independently. In this mode, the radiator 57 can be used to cool the motor, and the chiller 54 can be used to cool the battery, that is: the motor and the battery are cooled separately.

[0244] The embodiment of the present application also provides a vehicle, including the thermal management system of the above embodiment, and thus has all the beneficial effects of any of the above embodiments, which will not be elaborated here.

[0245] In summary, the coolant path integrated seat, thermal management system, and vehicle provided by the embodiments of the present application have the following advantages: 1) High heat pump efficiency: The thermal management system is a direct system, so the heat pump efficiency is higher compared to a semi-indirect system; 2) High system versatility: A simple system can be used to achieve multiple working modes of a conventional complex system; 3) Low system resistance: The size of each valve port of the five-way valve 100 can be enlarged, and the valve port connection is simple, so the fluid resistance is relatively low; 4) Water tank integration: The water tank is at the high position of the entire circuit, and a porous flow guide plate 582 is added, which is more conducive to exhaust; 5) Water pump arrangement: It is more conducive to the exhaust of the battery and the water tank; 6) More compact structure: Compared with the splicing and fusion welding of more plastic plates, only three bottom plates need to be welded in this solution; 7) Water tank connection: Fusion welding can reduce the risk of coolant leakage, reduce the cost of O-rings, and save more time in assembly; 8) The PTC coolant heater is retained, which can adapt to more vehicle models; 9) More compact space: The overall size of the water path integration module (coolant path integrated seat + first water pump 51 + second water pump 52 + water tank + PTC coolant heater) in this solution is approximately: length 306 cm, height 255 cm, thickness 106 cm, which is significantly smaller compared to the semi-indirect system using an eight-way valve (approximately length 400 cm, width 330 cm, thickness 220 cm).

[0246] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0247] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0248] In this application, unless otherwise clearly specified or limited, the terms "installed", "connected", "linked", "fixed", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0249] In this application, unless otherwise clearly specified or limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or simply means that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower horizontal height than the second feature.

[0250] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0251] Although the embodiments of this application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting this application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application.

Claims

1. A coolant path integrated seat, characterized in that, Comprising: A five-way valve connecting portion, provided with five transition grooves spaced apart from each other, and the five transition grooves are arranged to be in one-to-one correspondence and communication with five channels of a five-way valve, and the five-way valve is a three-position five-way valve having three working modes; A motor thermal management flow path connecting portion, provided with a first inlet and a first outlet, and the motor thermal management flow path connecting portion includes a first water pump connecting portion, a motor inlet pipe joint, and a motor outlet pipe joint. The first water pump connecting portion is provided with a first water pump inlet and a first water pump outlet. The first water pump outlet is in communication with the motor inlet pipe joint, the first water pump inlet is in communication with the first inlet, and the port of the motor outlet pipe joint forms the first outlet; A battery thermal management flow path connecting portion, provided with a second inlet and a second outlet, and the battery thermal management flow path connecting portion includes a second water pump connecting portion, a battery inlet pipe joint, a battery outlet pipe joint, an out-of-cabin evaporator inlet pipe joint, and an out-of-cabin evaporator outlet pipe joint; the second water pump connecting portion is provided with a second water pump inlet and a second water pump outlet, the second water pump inlet forms the second inlet, and the port of the battery outlet pipe joint forms the second outlet; And A radiator connecting portion, provided with a third inlet and a third outlet; Wherein, the first inlet, the first outlet, the second inlet, the second outlet, and the third outlet are respectively in one-to-one correspondence and communication with the five transition grooves, and the third inlet is in communication with the first outlet.

2. The coolant path integration seat according to claim 1, wherein The five transition grooves are distributed in two columns and three rows. The first column is respectively the first transition groove, the second transition groove, and the third transition groove arranged adjacent to each other in sequence. The second column is respectively the fourth transition groove and the fifth transition groove, and the second transition groove and the fourth transition groove are in the same row, and the third transition groove and the fifth transition groove are in the same row; The first inlet is in communication with the fifth transition groove, the first outlet is in communication with the first transition groove, the second inlet is in communication with the second transition groove, the second outlet is in communication with the third transition groove, the third outlet is in communication with the fourth transition groove, and the third inlet is also in communication with the first transition groove.

3. The coolant path integration seat according to claim 2, wherein When the five-way valve is in the first working mode, the second transition groove and the fourth transition groove are conducted, and the third transition groove and the fifth transition groove are conducted; When the five-way valve is in the second working mode, the first transition groove and the second transition groove are conducted, and the third transition groove and the fifth transition groove are conducted; When the five-way valve is in the third working mode, the second transition groove and the third transition groove are conducted, and the fourth transition groove and the fifth transition groove are conducted.

4. The coolant path integration seat according to any one of claims 1 to 3, wherein The motor thermal management flow path connecting portion further includes a water kettle connecting portion, and the water kettle connecting portion is provided with a water kettle inlet and a water kettle outlet. The water kettle inlet forms the first inlet, and the water kettle outlet is in communication with the first water pump inlet.

5. The coolant path integrated seat according to claim 4, wherein the motor thermal management flow path connection portion further includes an upflow channel and a downflow channel. The upper end of the upflow channel is connected to the upper end of the downflow channel. The water kettle connection portion is provided at the intersection of the upflow channel and the downflow channel. The water kettle inlet is communicated with the corresponding transition groove through the upflow channel, and the water kettle outlet is communicated with the first water pump inlet through the downflow channel.

6. The coolant path integrated seat according to claim 5, wherein a flow dividing plate extending along the flow direction of the upflow channel is provided in the upflow channel. The flow dividing plate divides the upflow channel into a water kettle flow channel and a water pump flow channel. The water kettle flow channel is communicated with the water kettle inlet. The water pump flow channel is communicated with the first water pump inlet through the downflow channel, and the minimum flow cross-sectional area of the water pump flow channel is larger than the minimum flow cross-sectional area of the water kettle flow channel.

7. The coolant path integrated seat according to claim 4, wherein the radiator connection portion includes a radiator inlet pipe joint and a radiator outlet pipe joint. The port of the radiator inlet pipe joint forms the third inlet, and the port of the radiator outlet pipe joint forms the third outlet; the radiator inlet pipe joint and the motor outlet pipe joint are arranged in parallel and communicated with the same transition groove.

8. The coolant path integrated seat according to claim 7, wherein the motor inlet pipe joint and the motor outlet pipe joint are located on both sides of the five-way valve connection portion; the radiator outlet pipe joint is located between the motor outlet pipe joint and the water kettle connection portion.

9. The coolant path integrated seat according to any one of claims 1 to 3, wherein the battery thermal management flow path connection portion further includes a coolant heater inlet pipe joint and a coolant heater outlet pipe joint. The second water pump outlet is communicated with the coolant heater inlet pipe joint. The coolant heater outlet pipe joint is communicated with the out-of-cabin evaporator inlet pipe joint. The out-of-cabin evaporator outlet pipe joint is communicated with the battery inlet pipe joint.

10. The coolant path integrated seat according to claim 9, wherein the battery thermal management flow path connection portion and the first water pump connection portion are located on both sides of the five-way valve connection portion; the battery thermal management flow path connection portion further includes an extension flow channel. The second water pump inlet is communicated with the corresponding transition groove through the extension flow channel; the motor outlet pipe joint is located between the second water pump connection portion and the five-way valve connection portion and on one side in the width direction of the extension flow channel; the coolant heater inlet pipe joint, the coolant heater outlet pipe joint, the out-of-cabin evaporator inlet pipe joint, the out-of-cabin evaporator outlet pipe joint, the battery inlet pipe joint, and the battery outlet pipe joint are located on the other side in the width direction of the extension flow channel.

11. A thermal management system, characterized in that, Comprising: a five-way valve, a first water pump, a second water pump, and a coolant path integrated seat according to any one of claims 1 to 10; The five-way valve is connected to the five-way valve connection part, the first water pump is connected to the motor thermal management flow path connection part, and the second water pump is connected to the battery thermal management flow path connection part.

12. The thermal management system according to claim 11, characterized in that, It further includes a water kettle and a coolant heater; The water kettle is communicated with the first water pump, and the coolant heater is communicated with the second water pump; An exhaust port is provided at the top of the water kettle, and a flow guide plate for increasing the flow path between the water kettle inlet and the exhaust port is provided in the water kettle.

13. The thermal management system according to claim 12, wherein At least a part of the flow guide plate is arranged as a porous plate.

14. A vehicle, characterized in that, It includes the thermal management system according to any one of claims 11 to 13.

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