Multi-way valve, integrated thermal management device and vehicle

Abstract

The present invention relates to the field of automotive thermal management technology, and specifically to a multi-way valve, an integrated thermal management device and a vehicle. The multi-way valve comprises: a flow guide cavity and a valve body. The flow guide cavity comprises a barrel-shaped cavity with a plurality of flow guide cavities arranged therein, and a connecting port communicating with the flow guide cavity is arranged on the barrel-shaped cavity; the valve body comprises a barrel-shaped shell and an end cover arranged at its end, the closed end of the barrel-shaped shell is attached to the open end of the barrel-shaped cavity and can rotate relative to the barrel-shaped cavity, and the accommodating cavity formed by the barrel-shaped shell and the end cover is provided with two circumferentially spaced connecting cavities, and each connecting cavity is provided with two circumferentially spaced connecting holes, and the connecting holes are located at the closed end of the barrel-shaped shell. When the barrel-shaped shell is rotated, the two connecting holes of the connecting cavity can switch to connect two different flow guide cavities. It can solve the problems of the complex internal flow channel structure of the prior art multi-way valve, the high processing difficulty, the high cost, and the need for completely different design ideas to redesign different passages, which is difficult to design.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile thermal management, and in particular to a multi-way valve, an integrated thermal management device and a vehicle. Background Art

[0002] The battery heating of PHEV (Plug-in hybrid electric vehicle) models adopts two heating methods: PTC (heater) heating and engine waste heat. Two three-way valves, an electronic water pump and several water pipe sets are used in the battery heating circuit to realize the two heating modes of the battery.

[0003] like Figure 1 As shown, the engine heating battery pack mode circuit is as follows: engine → water pump 1 → PTC → three-way valve 2 (ef pass) → chiller (heat exchanger) → three-way valve 1 (bc pass) → engine. PTC heating battery pack mode, the circuit is as follows: three-way valve 1 (ac pass) → water pump 1 → PTC → three-way valve 2 (ef pass) → chiller → three-way valve 1 (ac pass). However, this heat exchange circuit has complex piping and is not conducive to spatial layout.

[0004] There is an integrated expansion kettle for electric vehicles, which includes a multi-way valve, an expansion kettle and a cooling circuit water pump. The multi-way valve and the cooling circuit water pump are fixed to or integrally formed with the shell of the expansion kettle. The shell of the expansion kettle is also provided with multiple cooling interfaces connected to the cooling circuit of the electric vehicle and multiple heating interfaces connected to the heating circuit of the electric vehicle. The multi-way valve is used to change the conduction state of the multiple cooling interfaces, and the cooling circuit water pump is arranged in the cooling circuit.

[0005] However, the multi-way valve has a complex internal flow channel structure, is difficult to process, and is costly, which is not conducive to mass production. Different passages require completely different design ideas to be redesigned, and the design is difficult. Summary of the invention

[0006] In view of the defects existing in the prior art, the purpose of the present invention is to provide a multi-way valve, an integrated thermal management device and a vehicle, which can solve the problems of the multi-way valve in the prior art, such as complex internal flow channel structure, great processing difficulty, high cost, and being unfavorable for mass production, and different passages need to be redesigned with completely different design ideas, which makes the design difficult.

[0007] In order to achieve the above purpose, the technical solution adopted by the present invention is:

[0008] In one aspect, the present invention provides a multi-way valve, comprising:

[0009] A flow guiding cavity, comprising a barrel-shaped cavity with a plurality of flow guiding cavities therein, wherein the barrel-shaped cavity is provided with a communication port communicating with the flow guiding cavities;

[0010] A valve body, comprising a barrel-shaped shell and an end cover arranged at the end thereof, wherein the closed end of the barrel-shaped shell is attached to the open end of the barrel-shaped cavity and can rotate relative to the barrel-shaped cavity, and the accommodating cavity formed by the barrel-shaped shell and the end cover is provided with two circumferentially spaced communicating cavities, and each of the communicating cavities is provided with two circumferentially spaced communicating holes, and the communicating holes are located at the closed end of the barrel-shaped shell. When the barrel-shaped shell is rotated, the two communicating holes of each communicating cavity can switch to connect two different guide cavities.

[0011] In some optional schemes, a plurality of first partitions are provided in the barrel-shaped cavity to divide the barrel-shaped cavity into a plurality of guide cavities, and a plurality of second partitions are provided in the barrel-shaped shell to divide the accommodating cavity into two connecting cavities spaced apart in the circumferential direction.

[0012] In some optional schemes, the multi-way valve is a five-way valve, and a radially arranged first partition is provided in the barrel-shaped cavity, and the first partition divides the barrel-shaped cavity into a guide cavity A, a guide cavity B, a guide cavity C, a guide cavity D and a guide cavity E which are adjacent to each other in the circumferential direction.

[0013] In some optional solutions, the two communicating holes of one of the communicating cavities are communicating hole A and communicating hole B respectively; the two communicating holes of the other communicating cavity are communicating hole C and communicating hole D respectively;

[0014] When the first partition between the guide chamber D and the guide chamber E is located at the interval between the connecting hole A and the connecting hole B, the connecting hole C is located in the interval of the guide chamber A, and the connecting hole D is located in the interval of the guide chamber C. The connecting hole A and the connecting hole B connect the guide chamber D with the guide chamber E, and the connecting hole C and the connecting hole D connect the guide chamber A with the guide chamber C. When the barrel-shaped shell is rotated so that the first partition between the guide chamber A and the guide chamber B is located at the interval between the connecting hole A and the connecting hole B, the connecting hole C is located in the interval of the guide chamber D, and the connecting hole D is located in the interval of the guide chamber E. The connecting hole A and the connecting hole B connect the guide chamber A with the guide chamber B, and the connecting hole C and the connecting hole D connect the guide chamber D with the guide chamber E.

[0015] In some optional schemes, a driving cavity is provided in the middle of the barrel-shaped shell for installing a driving part that drives the barrel-shaped shell to rotate, and the second partition plate is provided between the outer wall of the driving cavity and the inner wall of the barrel-shaped shell.

[0016] In some optional schemes, a cavity corresponding to the driving cavity is provided in the middle of the barrel-shaped cavity, the first partition plate is located between the outer wall of the cavity and the inner wall of the barrel-shaped cavity, and the connecting holes are all fan-shaped.

[0017] In some optional schemes, the valve body also includes a cylinder, which is sleeved on the outside of the barrel-shaped shell, and its two ends are respectively connected to the barrel-shaped cavity and the end cover.

[0018] In a second aspect, the present invention further provides an integrated thermal management device, comprising:

[0019] A mounting plate having mounting holes thereon;

[0020] A flow guiding cavity, comprising a barrel-shaped cavity with a plurality of flow guiding cavities arranged therein, wherein an open end of the barrel-shaped cavity is connected to the mounting hole, and a communication port communicating with the flow guiding cavity is arranged on the barrel-shaped cavity;

[0021] A valve body, comprising a barrel-shaped shell and an end cover arranged at the end thereof, wherein the closed end of the barrel-shaped shell is attached to the open end of the barrel-shaped cavity and can rotate relative to the barrel-shaped cavity, and the accommodating cavity formed by the barrel-shaped shell and the end cover is provided with two circumferentially spaced communicating cavities, and the two communicating cavities are provided with two circumferentially spaced communicating holes, and the communicating holes are located at the closed end of the barrel-shaped shell. When the valve body is rotated, the two communicating holes of each communicating cavity can switch to connect two different diversion cavities;

[0022] A water pump is arranged on the mounting plate, and a water inlet of the water pump is communicated with a communication port of one of the guide cavities.

[0023] In some optional schemes, a pressure plate is further included, which is spaced apart from the mounting plate and partially serves as the bottom of the flow guide cavity, and the remaining portion of the flow guide cavity is integrally formed with the mounting plate.

[0024] In a third aspect, the present invention further provides a vehicle, comprising the multi-way valve described in any one of the above items.

[0025] Compared with the prior art, the advantages of the present invention are: the closed end of the barrel-shaped shell in the multi-way valve in this scheme is attached to the open end of the barrel-shaped cavity, and the barrel-shaped shell and the barrel-shaped cavity are axially sealed, and the barrel-shaped shell and the barrel-shaped cavity are pressed together, and a better seal can be achieved through a larger pressing force. Compared with the ball valve, which is sealed by the spherical valve core and the sealing ring, and only relies on the interference between the valve core and the sealing ring to seal, resulting in a large leakage, the present scheme adopts the disc valve axial seal to achieve better sealing. Different numbers of guide cavities can be set in the barrel-shaped cavity to connect different numbers of circulation pipelines. Only by adaptively adjusting the position of the connecting cavity and the connecting hole, the switching between different numbers of circulation pipelines can be achieved. For example, setting a guide cavity can achieve the function of a five-way valve, and setting a guide cavity can achieve the function of a six-way valve. Therefore, when meeting different needs, the number of guide cavities and the position of the connecting cavity and the connecting hole can be designed according to the actual needs with the same concept, which is convenient for design and processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 is a schematic diagram of a thermal management circuit in the prior art in an embodiment of the present invention;

[0028] Figure 2 A schematic diagram of the structure of an integrated thermal management device in an embodiment of the present invention;

[0029] Figure 3 for Figure 2 The main cross-sectional view of the integrated thermal management device at the guide cavity;

[0030] Figure 4 for Figure 2 A rear cross-sectional view of the integrated thermal management device at the guide cavity;

[0031] Figure 5 It is a schematic cross-sectional view of a barrel-shaped housing in an embodiment of the present invention;

[0032] Figure 6 A schematic diagram of the fluid flow direction for heating a battery pack using waste heat generated by an engine in an embodiment of the present invention;

[0033] Figure 7 It is a schematic diagram of the cooperation between the flow guiding cavity and the barrel-shaped shell when the waste heat generated by the engine is used to heat the battery pack in an embodiment of the present invention;

[0034] Figure 8 A schematic diagram of the fluid flow direction for heating a battery pack using PTC in an embodiment of the present invention;

[0035] Fig. 9 It is a schematic diagram of the cooperation between the flow guiding cavity and the barrel-shaped shell when the PTC is used to heat the battery pack in an embodiment of the present invention.

[0036] In the figure: 1. guide cavity; 11. barrel-shaped cavity; 12. first partition; 13. guide cavity; 14. connecting port; 15. cavity; 2. valve body; 20. connecting cavity; 21. barrel-shaped shell; 22. end cover; 23. second partition; 24. drive cavity; 25. connecting hole; 26. cylinder; 3. mounting plate; 4. water pump; 5. pressure plate; 6. servo motor. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0038] The embodiments of the present invention are further described in detail below with reference to the accompanying drawings.

[0039] like Figure 2-Figure 5 As shown, the present invention provides a multi-way valve, comprising: a flow guiding cavity 1 and a valve body 2. The flow guiding cavity 1 comprises a barrel-shaped cavity 11 with a plurality of flow guiding cavities 13 arranged therein, and a connecting port 14 communicating with the flow guiding cavities 13 is arranged on the barrel-shaped cavity 11; the valve body 2 comprises a barrel-shaped shell 21 and an end cover 22 arranged at the end thereof, the closed end of the barrel-shaped shell 21 is attached to the open end of the barrel-shaped cavity 11, and can rotate relative to the barrel-shaped cavity 11, and the accommodating cavity formed by the barrel-shaped shell 21 and the end cover 22 is provided with two circumferentially spaced connecting cavities 20, and each connecting cavity 20 is provided with two circumferentially spaced connecting holes 25, and the connecting holes 25 are located at the closed end of the barrel-shaped shell 21, and when the barrel-shaped shell 21 is rotated, the two connecting holes 25 of each connecting cavity 20 can switch to connect two different flow guiding cavities 13.

[0040] When using the multi-way valve, each circulation pipeline is connected to the connecting port 14 of each guide cavity 13. When the two connecting holes 25 of each connecting cavity 20 correspond to the positions of the two guide cavities 13, the two guide cavities 13 can be connected through the two connecting holes 25 of each connecting cavity 20, so that the circulation pipelines are connected in pairs; when it is necessary to switch other different circulation pipelines, the barrel-shaped shell 21 is rotated to switch the two connecting holes 25 of each connecting cavity 20 to the positions corresponding to the other two guide cavities 13, and the two connecting holes 25 of the connecting cavity 20 are switched to connect the other two different guide cavities 13, so that different circulation pipelines are connected in pairs. In this solution, the closed end of the barrel-shaped shell 21 is attached to the open end of the barrel-shaped cavity 11, and the barrel-shaped shell 21 and the barrel-shaped cavity 11 are axially sealed. The barrel-shaped shell 21 and the barrel-shaped cavity 11 are pressed together, and a better seal can be achieved through a greater pressing force. Compared with the ball valve, which is sealed by the spherical valve core and the sealing ring, and only relies on the interference fit between the valve core and the sealing ring to seal, resulting in large leakage, this solution uses a disc valve axial seal to achieve better sealing. In addition, different numbers of guide chambers 13 can be set in the barrel-shaped cavity 11 to connect different numbers of circulation pipelines. It is only necessary to adaptively adjust the position of the connecting chamber 20 and the connecting hole 25 to achieve the switching between different numbers of circulation pipelines. For example, 5 guide chambers 13 can achieve the function of a five-way valve, and 6 guide chambers 13 can achieve the function of a six-way valve. Therefore, when meeting different needs, the same concept can be used to design the number of guide chambers 13 and the positions of the connecting chamber 20 and the connecting hole 25 according to actual needs. It is convenient to design and process.

[0041] In this example, the flow guide cavity 13 opens toward one side of the closed end of the barrel-shaped shell 21, and is used to communicate with the corresponding communication hole 25. Axial refers to the axial direction relative to the barrel-shaped shell 21 and the barrel-shaped cavity 11, and circumferential refers to the circumferential direction relative to the barrel-shaped shell 21 and the barrel-shaped cavity 11.

[0042] In some optional embodiments, a plurality of first partitions 12 are provided in the barrel-shaped cavity 11 to divide the barrel-shaped cavity 11 into a plurality of flow guide cavities 13, and a plurality of second partitions 23 are provided in the barrel-shaped shell 21 to divide the accommodating cavity into two connecting cavities 20 spaced apart in the circumferential direction.

[0043] In this solution, a plurality of first partitions 12 are used to divide the barrel-shaped cavity 11 into a plurality of flow diversion chambers 13. One end of the first partition 12 is connected to the bottom of the barrel-shaped cavity 11, and the other end is abutted against the closed end of the barrel-shaped shell 21. Two first partitions 12 form a flow diversion chamber 13. Such a design is convenient and processing is also convenient. In other embodiments, a chamber can be opened in a cylindrical body to form a continuous flow diversion chamber 13. If some areas are not used, the solution can also be implemented, and some areas can also be filled. In the same way, one end of a plurality of second partitions 23 is connected to the bottom of the barrel-shaped shell 21, and the other end is abutted against the end cover 22, and a connecting chamber 20 is formed between the two second partitions 23. In this embodiment, four second partitions 23 are provided in the barrel-shaped shell 21 to divide the barrel-shaped shell 21 into four chambers, and two chambers separated from each other are selected as connecting chambers 20. In other embodiments, a larger number of second partitions 23 may be used, and it is only necessary to select two spaced-apart chambers as the connecting chamber 20 according to the needs. In addition, in other embodiments, the area between the two connecting chambers 20 may also be filled.

[0044] In some optional embodiments, the multi-way valve is a five-way valve, and five radially arranged first partitions 12 are provided in the barrel-shaped cavity 11, and the five first partitions 12 divide the barrel-shaped cavity 11 into a guide cavity A, a guide cavity B, a guide cavity C, a guide cavity D and a guide cavity E which are adjacent to each other in the circumferential direction.

[0045] like Figure 7 and Fig. 9 As shown, in the present embodiment, the barrel-shaped cavity 11 is divided into guide cavity A, guide cavity B, guide cavity C, guide cavity D and guide cavity E which are adjacent in the circumferential direction by five radially arranged first partitions 12, so that the guide cavity A, guide cavity B, guide cavity C, guide cavity D and guide cavity E are fan-shaped. Such a design can facilitate the relative positions of the guide cavity 13, the connecting cavity 20 and the connecting hole 25 to realize the switching of each flow channel of the five-way valve.

[0046] In some optional embodiments, the two communicating holes 25 of one communicating cavity 20 are respectively communicating hole A and communicating hole B; the two communicating holes 25 of another communicating cavity 20 are respectively communicating hole C and communicating hole D;

[0047] When the first partition plate 12 between the guide chamber D and the guide chamber E is located at the interval between the connecting hole A and the connecting hole B, the connecting hole C is located in the interval of the guide chamber A, the connecting hole D is located in the interval of the guide chamber C, the connecting hole A and the connecting hole B connect the guide chamber D with the guide chamber E, and the connecting hole C and the connecting hole D connect the guide chamber A with the guide chamber C; when the barrel-shaped shell 21 is rotated so that the first partition plate 12 between the guide chamber A and the guide chamber B is located at the interval between the connecting hole A and the connecting hole B, the connecting hole C is located in the interval of the guide chamber D, the connecting hole D is located in the interval of the guide chamber E, the connecting hole A and the connecting hole B connect the guide chamber A with the guide chamber B, and the connecting hole C and the connecting hole D connect the guide chamber D with the guide chamber E.

[0048] In this embodiment, since the two connecting holes in the connecting cavity 20 are spaced apart in the circumferential direction, the first partition plate 12 between the guide cavity D and the guide cavity E can be located at the interval between the connecting hole A and the connecting hole B. Through reasonable position setting, the connecting hole C is located in the interval of the guide cavity A, and the connecting hole D is located in the interval of the guide cavity C, so that the connecting hole A and the connecting hole B connect the guide cavity D and the guide cavity E through the first connecting cavity 20, and the connecting hole C and the connecting hole D connect the guide cavity A and the guide cavity C through the second connecting cavity 20.

[0049] By rotating the barrel-shaped shell 21, the first partition plate 12 between the guide chamber A and the guide chamber B can be located at the interval between the connecting hole A and the connecting hole B, the connecting hole C is located in the interval of the guide chamber D, and the connecting hole D is located in the interval of the guide chamber E, thereby realizing that the connecting hole A and the connecting hole B connect the guide chamber A and the guide chamber B through the first connecting chamber 20, and the connecting hole C and the connecting hole D connect the guide chamber D and the guide chamber E through the second connecting chamber 20.

[0050] A specific embodiment is given below, in which the barrel-shaped shell 21 and the barrel-shaped cavity 11 are coaxially arranged. The barrel-shaped shell 21 and the barrel-shaped cavity 11 are divided into 16 sector-shaped areas in the circumferential direction. The flow guide cavity A, the flow guide cavity B, the flow guide cavity C, the flow guide cavity D and the flow guide cavity E occupy 4, 2, 2, 4 and 4 sector-shaped areas respectively. The four adjacent chambers in the barrel-shaped shell 21 occupy 9, 1, 3 and 3 sector-shaped areas respectively, and the 16 sector-shaped areas of the barrel-shaped shell 21 are numbered 1-16 in sequence. The second connecting cavity 20 is a chamber occupying 9 sector-shaped areas No. 1-9, the first connecting cavity 20 is a chamber occupying 3 sector-shaped areas No. 11-13, the through hole C and the connecting hole D of the second connecting cavity 20 are respectively located at the sector-shaped areas No. 1 and No. 8, and the connecting hole A and the connecting hole B of the first connecting cavity 20 are respectively located at the sector-shaped areas No. 11 and No. 13.

[0051] The following is an application scenario in which the five-way valve is applied to switch between an engine heating battery pack mode and a PTC heating battery pack mode.

[0052] The flow diversion chamber A, flow diversion chamber B, flow diversion chamber C, flow diversion chamber D and flow diversion chamber E correspond to the connecting port a, connecting port b, connecting port c, connecting port d and connecting port e respectively; the water inlet of the engine cooling pipeline is connected with the connecting port b, and the inlet and outlet of the engine cooling pipeline are connected with the connecting port c; the water inlet of the PTC heat exchange pipeline is connected with the connecting port b, and the water outlet of the PTC heat exchange pipeline is connected with the connecting port d, and the PTC heat exchange pipeline is provided with a water pump 4 and a PTC heater in sequence from the water inlet to the water outlet; the water inlet of the battery pack heat exchange pipeline is connected with the connecting port b, and the water outlet of the PTC heat exchange pipeline is connected with the connecting port d. The connecting port e is connected, the water outlet of the battery pack heat exchange pipeline is connected to the connecting port a, the first heat exchange pipeline of the chiller is connected in series in the middle of the battery pack heat exchange pipeline, and heat exchange is performed through the second heat exchange pipeline located in the chiller and connected in series to the battery pack temperature control pipeline, that is, the battery pack heat exchange pipeline and the battery pack heat exchange pipeline exchange heat through the first heat exchange pipeline and the second heat exchange pipeline located in the chiller; a circulating pump is also provided on the battery pack temperature control pipeline.

[0053] like Figure 6 and Figure 7 As shown, the PTC is not working, and the waste heat generated by the engine is used. The circuit is as follows: engine cooling pipeline → connecting port b → guide chamber B → water pump 4 → PTC → connecting port d → guide chamber D → connecting hole A → first connecting chamber 20 → connecting hole B → guide chamber E → connecting port e → chiller → connecting port a → guide chamber A → connecting hole C → second connecting chamber 20 → connecting hole D → guide chamber C → connecting port c → engine cooling pipeline, and the waste heat of the engine is used to heat the battery pack.

[0054] like Figure 8 and Fig. 9 As shown, PTC is working and the engine is not working. PTC is used to heat the coolant. The circuit is as follows: guide chamber B → connecting port b → water pump 4 → PTC → connecting port d → guide chamber D → connecting hole C → second connecting chamber 20 → connecting hole D → guide chamber E → connecting port e → chiller → connecting port a → guide chamber A → connecting hole A → first connecting chamber 20 → connecting hole B → guide chamber B. The heat generated by PTC is used to heat the battery pack.

[0055] The battery pack needs to be heated to increase the temperature of the battery cells when the temperature is low. The principle is to use the chiller to exchange heat between the hot coolant and the coolant in the battery circuit, transfer the heat to the battery pack, and thus increase the temperature of the battery cells.

[0056] In some optional embodiments, a driving cavity 24 is provided in the middle of the barrel-shaped shell 21 for installing a driving part that drives the barrel-shaped shell 21 to rotate, and the second partition plate 23 is provided between the outer wall of the driving cavity 24 and the inner wall of the barrel-shaped shell 21 .

[0057] In this embodiment, when the connecting cavity 20 needs to be switched to connect with another guide cavity 13, the barrel-shaped housing 21 needs to be rotated. In order to facilitate the driving of the barrel-shaped housing 21 to rotate, a driving cavity 24 is provided in the middle of the barrel-shaped housing 21. In this example, the barrel-shaped housing 21 is driven to rotate by the servo motor 6, the servo motor 6 is mounted on the end cover 22, and the output shaft of the servo motor 6 is extended through the end cover 22 into the driving cavity 24, so that the servo motor 6 can drive the barrel-shaped housing 21 to rotate. In this example, the cross section of the driving cavity 24 is circular.

[0058] In addition, in other embodiments, a holding cover can be provided on the outer side of the valve body 2, and the holding cover can hold the valve body 2 and seal it with the barrel-shaped cavity 11. The servo motor can be installed on the holding cover, and the driving shaft of the servo motor can pass through the holding cover and connect with the valve body 2 to drive the entire valve body 2 to rotate, which can also achieve the same effect.

[0059] In some optional embodiments, a cavity 15 corresponding to the driving cavity 24 is provided in the middle of the barrel-shaped cavity 11, the first partition plate 12 is located between the outer wall of the cavity 15 and the inner wall of the barrel-shaped cavity 11, and the connecting holes 25 are all fan-shaped.

[0060] In this embodiment, the first partition 12 is located between the outer wall of the cavity 15 and the inner wall of the barrel-shaped cavity 11, and is arranged radially, and the guide cavity 13 separated by the first partition 12 is fan-shaped. The position and shape of the driving cavity 24 correspond to those of the cavity 15, so that the length of the guide cavity 13 in the radial direction can be the same as the length of the connecting hole 25, which is more conducive to the cooperation between the guide cavity 13 and the connecting hole 25, and can release the flow volume to a greater extent.

[0061] In some optional embodiments, the valve body 2 further includes a cylinder 26 which is sleeved on the outside of the barrel-shaped shell 21 , and whose two ends are respectively connected to the barrel-shaped cavity 11 and the end cover 22 .

[0062] In this embodiment, the open end of the barrel-shaped shell 21 is held against the end cover 22, the barrel-shaped cavity 11 and the end cover 22 are connected by the cylinder 26, the barrel-shaped shell 21 is pressed between the barrel-shaped cavity 11 and the end cover 22, and the barrel-shaped shell 21 can rotate relative to the barrel-shaped cavity 11 and the end cover 22, thereby realizing the switching of the flow channel. In this example, the servo motor 6 installed on the end cover 22 is inserted into the drive cavity 24 through the end cover 22, so that the servo motor 6 can drive the barrel-shaped shell 21 to rotate.

[0063] like Figure 2-Figure 9 As shown, in a second aspect, the present invention provides an integrated thermal management device, comprising: a mounting plate 3, a flow guide cavity 1, a valve body 2 and a water pump 4.

[0064] A mounting hole is provided on the mounting plate 3; the diversion cavity 1 includes a barrel-shaped cavity 11 with a plurality of diversion cavities 13 therein, the open end of the barrel-shaped cavity 11 is connected to the mounting hole, and a connecting port 14 communicating with the diversion cavity 13 is provided on the barrel-shaped cavity 11; the valve body 2 includes a barrel-shaped shell 21 and an end cover 22 provided at its end, the closed end of the barrel-shaped shell 21 is attached to the open end of the barrel-shaped cavity 11 and can rotate relative to the barrel-shaped cavity 11, and the accommodating cavity formed by the barrel-shaped shell 21 and the end cover 22 is provided with two circumferentially spaced connecting cavities 20, and the two connecting cavities 20 are provided with two circumferentially spaced connecting holes 25, and the connecting holes 25 are located at the closed end of the barrel-shaped shell 21, and when the valve body 2 is rotated, the two connecting holes 25 of each connecting cavity 20 can switch to connect two different diversion cavities 13; the water pump 4 is provided on the mounting plate 3, and the water inlet of the water pump 4 is communicated with the connecting port of one of the diversion cavities 13.

[0065] In this solution, the guide cavity 1, the valve body 2 and the water pump 4 are integrated and installed together through the mounting plate 3, which effectively reduces the volume. The closed end of the barrel-shaped shell 21 is attached to the open end of the barrel-shaped cavity 11, and the barrel-shaped shell 21 and the barrel-shaped cavity 11 are axially sealed. The barrel-shaped shell 21 and the barrel-shaped cavity 11 are pressed together, and a better seal can be achieved through a greater pressing force. In addition, different numbers of guide cavities 13 can be set in the barrel-shaped cavity 11 to connect different numbers of circulation pipelines. It is only necessary to adaptively adjust the positions of the connecting cavity 20 and the connecting hole 25 to achieve the switching between different numbers of circulation pipelines. For example, 5 guide cavities 13 can achieve the function of a five-way valve, and 6 guide cavities 13 can achieve the function of a six-way valve. Therefore, when facing different needs, the number of guide cavities 13 and the positions of the connecting cavity 20 and the connecting hole 25 can be designed with the same concept according to actual needs. It is convenient to design and process.

[0066] In some optional embodiments, the integrated thermal management device further includes a pressure plate 5 , which is spaced apart from the mounting plate 3 , and partially serves as the bottom of the flow guide cavity 1 , while the remaining portion of the flow guide cavity 1 is integrally formed with the mounting plate 3 .

[0067] In this embodiment, part of the pressing plate 5 is used as the cavity bottom of the flow guiding cavity 1, that is, part of the pressing plate 5 is used as the cavity bottom of the barrel-shaped cavity 11, and the remaining part of the flow guiding cavity 1 is integrally formed with the mounting plate 3. Such a design can make processing more convenient.

[0068] In addition, the connecting port 14 connected to the guide cavity 13 provided on the barrel-shaped cavity 11 can be formed by providing two guide plates on the mounting plate 3, and then pressing the pressing plate 5 to form the connecting port 14. In this way, the guide plate of the connecting port 14 can also be integrally formed with the mounting plate 3, thereby reducing the difficulty of processing. In this example, the guide cavity A, the guide cavity B, the guide cavity C, the guide cavity D and the guide cavity E correspond to the connecting port a, the connecting port b, the connecting port c, the connecting port d and the connecting port e, respectively, and all of them can adopt this form. In addition, after the water pump 4 is integrated and installed on the mounting plate 3, the water inlet and the water outlet of the water pump 4 can also be arranged in the same form. For example, the water inlet of the water pump 4 is covered by the pressing plate 5 provided on the two guide plates provided on the mounting plate 3 to form a guide chamber directly connected to the guide cavity B, and the water outlet of the water pump 4 is covered by the pressing plate 5 provided on the two guide plates provided on the mounting plate 3 to form a connecting port f, and the water inlet of the PTC heater is connected to the water pump 4 through the connecting port f.

[0069] On the other hand, the present invention further provides a vehicle, comprising any of the multi-way valves described above. For example, when the multi-way valve is designed as a five-way valve, the five-way valve can be applied to an application scenario of switching between an engine heating battery pack mode and a PTC heating battery pack mode. The specific embodiment is consistent with the above-mentioned application scenario of switching between an engine heating battery pack mode and a PTC heating battery pack mode.

[0070] In summary, the closed end of the barrel-shaped shell 21 in the multi-way valve in this solution is attached to the open end of the barrel-shaped cavity 11, and the barrel-shaped shell 21 and the barrel-shaped cavity 11 are axially sealed. The barrel-shaped shell 21 and the barrel-shaped cavity 11 are pressed together, and a better seal can be achieved through a greater pressing force. Compared with the ball valve, which is sealed by the spherical valve core and the sealing ring, and only relies on the interference fit between the valve core and the sealing ring to seal, resulting in a large leakage, this solution uses a disc valve axial seal to achieve better sealing. Different numbers of guide chambers 13 can be set in the barrel-shaped cavity 11 to connect different numbers of circulation pipelines. It is only necessary to adaptively adjust the positions of the connecting chamber 20 and the connecting hole 25 to achieve switching between different numbers of circulation pipelines. For example, 5 guide chambers 13 can achieve the function of a five-way valve, and 6 guide chambers 13 can achieve the function of a six-way valve. Therefore, in response to different needs, the number of guide cavities 13 and the positions of the connecting cavities 20 and the connecting holes 25 can be designed with the same concept according to actual needs, which is convenient for design and processing.

[0071] The guide cavity 1, the valve body 2 and the water pump 4 are integrated and installed together through the mounting plate 3, which effectively reduces the volume. The connecting port 14 provided on the barrel-shaped cavity 11 and communicating with the guide cavity 13 can be formed by arranging two guide plates on the mounting plate 3 and then pressing the pressing plate 5 to form the connecting port 14. In this way, the guide plate of the connecting port 14 can also be integrally formed with the mounting plate 3, which reduces the difficulty of processing.

[0072] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are 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 therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0073] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0074] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A multi-way valve, characterized in that: include: A flow guiding cavity (1), comprising a barrel-shaped cavity (11) having a plurality of flow guiding cavities (13) therein, wherein the barrel-shaped cavity (11) is provided with a communication port (14) communicating with the flow guiding cavities (13); A valve body (2), comprising a barrel-shaped shell (21) and an end cover (22) arranged at the end thereof, wherein the closed end of the barrel-shaped shell (21) is attached to the open end of the barrel-shaped cavity (11) and can rotate relative to the barrel-shaped cavity (11), and the accommodating cavity formed by the barrel-shaped shell (21) and the end cover (22) is provided with two circumferentially spaced communication cavities (20), and each of the communication cavities (20) is provided with two circumferentially spaced communication holes (25), and the communication holes (25) are located at the closed end of the barrel-shaped shell (21), and when the barrel-shaped shell (21) is rotated, the two communication holes (25) of each communication cavity (20) can switch to connect two different guide cavities (13); The multi-way valve is a five-way valve, wherein five radially arranged first partitions (12) are provided in the barrel-shaped cavity (11), and the five first partitions (12) divide the barrel-shaped cavity (11) into a guide cavity A, a guide cavity B, a guide cavity C, a guide cavity D and a guide cavity E which are adjacent to each other in the circumferential direction; The two communicating holes (25) of one of the communicating cavities (20) are respectively a communicating hole A and a communicating hole B; the two communicating holes (25) of the other communicating cavity (20) are respectively a communicating hole C and a communicating hole D; When the first partition plate (12) between the guide chamber D and the guide chamber E is located at the interval between the connecting hole A and the connecting hole B, the connecting hole C is located in the interval of the guide chamber A, the connecting hole D is located in the interval of the guide chamber C, the connecting hole A and the connecting hole B connect the guide chamber D with the guide chamber E, and the connecting hole C and the connecting hole D connect the guide chamber A with the guide chamber C; when the barrel-shaped shell (21) is rotated so that the first partition plate (12) between the guide chamber A and the guide chamber B is located at the interval between the connecting hole A and the connecting hole B, the connecting hole C is located in the interval of the guide chamber D, the connecting hole D is located in the interval of the guide chamber E, the connecting hole A and the connecting hole B connect the guide chamber A with the guide chamber B, and the connecting hole C and the connecting hole D connect the guide chamber D with the guide chamber E.

2. The multi-way valve according to claim 1, characterized in that: A plurality of first partitions (12) are provided in the barrel-shaped cavity (11) to divide the barrel-shaped cavity (11) into a plurality of flow guide cavities (13); a plurality of second partitions (23) are provided in the barrel-shaped shell (21) to divide the accommodating cavity into two circumferentially spaced communicating cavities (20).

3. The multi-way valve according to claim 2, characterized in that: A driving chamber (24) is provided in the middle of the barrel-shaped shell (21) for installing a driving unit that drives the barrel-shaped shell (21) to rotate, and the second partition plate (23) is provided between the outer side wall of the driving chamber (24) and the inner side wall of the barrel-shaped shell (21).

4. The multi-way valve according to claim 3, characterized in that: A cavity (15) corresponding to the drive cavity (24) is provided in the middle of the barrel-shaped cavity (11); the first partition plate (12) is located between the outer wall of the cavity (15) and the inner wall of the barrel-shaped cavity (11); and the communication holes (25) are all fan-shaped.

5. The multi-way valve according to claim 1, characterized in that: The valve body (2) further comprises a cylinder (26) which is sleeved on the outside of the barrel-shaped shell (21), and whose two ends are respectively connected to the barrel-shaped cavity (11) and the end cover (22).

6. An integrated thermal management device, characterized in that: include: A mounting plate (3) having mounting holes thereon; A flow guiding cavity (1), comprising a barrel-shaped cavity (11) provided with a plurality of flow guiding cavities (13) therein, the open end of the barrel-shaped cavity (11) being connected to the mounting hole, and a communication port (14) communicating with the flow guiding cavity (13) being provided on the barrel-shaped cavity (11); A valve body (2), comprising a barrel-shaped shell (21) and an end cover (22) arranged at the end thereof, wherein the closed end of the barrel-shaped shell (21) is attached to the open end of the barrel-shaped cavity (11) and can rotate relative to the barrel-shaped cavity (11), and the accommodating cavity formed by the barrel-shaped shell (21) and the end cover (22) is provided with two circumferentially spaced communicating cavities (20), and the two communicating cavities (20) are provided with two circumferentially spaced communicating holes (25), and the communicating holes (25) are located at the closed end of the barrel-shaped shell (21). When the valve body (2) is rotated, the two communicating holes (25) of each communicating cavity (20) can switch to connect two different guide cavities (13); Five radially arranged first partitions (12) are provided in the barrel-shaped cavity (11), and the five first partitions (12) divide the barrel-shaped cavity (11) into a guide cavity A, a guide cavity B, a guide cavity C, a guide cavity D and a guide cavity E which are adjacent to each other in the circumferential direction; The two communicating holes (25) of one of the communicating cavities (20) are respectively a communicating hole A and a communicating hole B; the two communicating holes (25) of the other communicating cavity (20) are respectively a communicating hole C and a communicating hole D; When the first partition plate (12) between the flow guiding chamber D and the flow guiding chamber E is located at the interval between the connecting hole A and the connecting hole B, the connecting hole C is located in the interval of the flow guiding chamber A, the connecting hole D is located in the interval of the flow guiding chamber C, the connecting hole A and the connecting hole B connect the flow guiding chamber D with the flow guiding chamber E, and the connecting hole C and the connecting hole D connect the flow guiding chamber A with the flow guiding chamber C; when the barrel-shaped shell (21) is rotated so that the first partition plate (12) between the flow guiding chamber A and the flow guiding chamber B is located at the interval between the connecting hole A and the connecting hole B, the connecting hole C is located in the interval of the flow guiding chamber D, the connecting hole D is located in the interval of the flow guiding chamber E, the connecting hole A and the connecting hole B connect the flow guiding chamber A with the flow guiding chamber B, and the connecting hole C and the connecting hole D connect the flow guiding chamber D with the flow guiding chamber E; A water pump (4) is arranged on the mounting plate (3), and a water inlet of the water pump (4) is connected to a communication port of one of the guide chambers (13).

7. The integrated thermal management device according to claim 6, characterized in that: It also comprises a pressing plate (5) which is spaced apart from the mounting plate (3), a part of which serves as the cavity bottom of the flow guiding cavity (1), and the remaining part of the flow guiding cavity (1) is formed integrally with the mounting plate (3).

8. A vehicle, characterized in that: Comprising a multi-way valve as described in any one of claims 1-5.

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