Valve device and vehicle

Abstract

The valve device comprises a shell, a valve element, a sealing assembly and an elastic piece, the shell is provided with a plurality of first through holes, the valve element is provided with a plurality of second through holes, the valve element is rotatably connected with the shell so that the valve element can rotate among a plurality of positions relative to the shell, and when the valve element is located at a preset position relative to the shell, the sealing assembly is arranged on the elastic piece. At least part of the second through hole communicates with at least part of the first through hole to form a fluid channel, the sealing assembly is arranged on the shell in the circumferential direction of the first through hole, the valve element abuts against the sealing assembly, the elastic piece is arranged on the shell and located on the side, away from the valve element, of the sealing assembly, and one end of the elastic piece abuts against the sealing assembly. According to the sealing assembly, the sealing performance of communication between the second through hole and the first through hole is guaranteed, when the valve element rotates, the rotating torque of the valve element is reduced through the elastic force of the elastic piece, the elastic piece can conduct compensation when the sealing assembly is abraded, the risk of internal leakage of the valve device is reduced, and normal work of the valve device is guaranteed.

Description

Technical Field

[0001] This application relates to the field of valve technology, specifically to a valve device and a vehicle. Background Technology

[0002] In the prior art, most valves use rubber gaskets to ensure a seal between the valve core and the outer shell. This results in a very high rotational torque on the valve core, and the rubber gaskets undergo significant permanent deformation under high temperature conditions, which cannot meet the requirements of high-temperature operating conditions. Furthermore, this can lead to internal leakage after durability testing, thereby affecting the normal operation of the valve and reducing work efficiency. Utility Model Content

[0003] In order to overcome the problems existing in the prior art, the main objective of this application is to provide a valve device and vehicle that can reduce the risk of internal leakage and improve work efficiency.

[0004] To achieve the above objectives, this application specifically adopts the following technical solution:

[0005] A valve device, comprising:

[0006] A housing, wherein the housing is provided with a plurality of first through holes;

[0007] The valve core is provided with a plurality of second through holes and is rotatably connected to the housing so that the valve core can rotate between multiple positions relative to the housing. When the valve core is in a preset position relative to the housing, at least a portion of the second through holes communicates with at least a portion of the first through holes to form a fluid channel.

[0008] A sealing assembly is circumferentially disposed on the housing around the first through hole, and the valve core abuts against the sealing assembly;

[0009] An elastic element is disposed in the housing and located on the side of the sealing assembly away from the valve core, and one end of the elastic element abuts against the sealing assembly.

[0010] In some embodiments, the housing is provided with a limiting portion around the first through hole in the circumferential direction, and the elastic member is disposed in the limiting portion and abuts against the inner wall of the limiting portion.

[0011] In some embodiments, the limiting portion is configured as a first limiting step, the first limiting step is formed on the inner wall of the first through hole, the elastic member is disposed at the first limiting step, one end of the elastic member abuts against the first limiting step, and the other end of the elastic member abuts against the sealing assembly.

[0012] In some embodiments, the inner wall of the first through hole is further provided with a second limiting step, the second limiting step is located at one end of the first limiting step near the valve core, the sealing component is disposed at the second limiting step, and the sealing component abuts against the second limiting step.

[0013] In some embodiments, the sealing assembly includes a seal and a sealing ring, one end of the seal abuts against the elastic element, the other end of the seal abuts against the valve core, the sealing ring is sleeved on the end of the seal that abuts against the elastic element, and the sealing ring abuts against the second limiting step.

[0014] In some embodiments, the limiting portion is configured as an annular limiting groove, which is opened on the periphery of the first through hole. The elastic member is disposed in the annular limiting groove, and one end of the elastic member abuts against the bottom wall of the annular limiting groove, while the other end of the elastic member abuts against the sealing assembly.

[0015] In some embodiments, the elastic element is a spring.

[0016] In some embodiments, the housing includes a first connecting portion and a plurality of second connecting portions, the first connecting portion and the plurality of second connecting portions being distributed along the circumference of the housing, the first connecting portion having two first through holes, each of the second connecting portions having one first through hole, and the area of ​​the first through hole located in the first connecting portion being smaller than the area of ​​the first through hole located in the second connecting portion.

[0017] In some embodiments, the valve core includes a body, an isolator, a first protrusion, and a second protrusion. The body has a receiving cavity and a plurality of second through holes. The isolator is connected to the body to divide the receiving cavity into a first channel and a second channel. The first protrusion is connected to the body and has a third channel. The second protrusion is connected to the body and has a fourth channel. The first channel, the second channel, the third channel, and the fourth channel are respectively connected to two second through holes.

[0018] A vehicle includes a body and a thermal management system disposed on the body, the thermal management system including the valve device described in any of the preceding claims.

[0019] This application discloses a valve device, including a housing, a valve core, a sealing assembly, and an elastic element. The housing has a plurality of first through holes, and the valve core has a plurality of second through holes. The valve core is rotatably connected to the housing so that the valve core can rotate relative to the housing between multiple positions. When the valve core is in a preset position relative to the housing, at least a portion of the second through holes communicates with at least a portion of the first through holes to form a fluid channel. The sealing assembly is circumferentially disposed on the housing around the first through holes, and the valve core abuts against the sealing assembly. The elastic element is disposed on the housing and located on the side of the sealing assembly away from the valve core, and one end of the elastic element abuts against the sealing assembly. This application includes a sealing component and an elastic element. The sealing component is circumferentially disposed on the housing around the first through hole, and the valve core abuts against the sealing component to ensure the sealing performance when the second through hole communicates with the first through hole. The elastic element is disposed on the housing and located on the side of the sealing component away from the valve core, and one end of the elastic element abuts against the sealing component. When the valve core rotates, the elastic force of the elastic element reduces the rotational torque of the valve core. The elastic element can also compensate for wear of the sealing component, reducing the risk of internal leakage of the valve device, thereby ensuring the normal operation of the valve device and improving work efficiency. Attached Figure Description

[0020] Figure 1 Exploded view of the valve device provided in the embodiments of this application;

[0021] Figure 2 This is a schematic diagram of the valve core of the valve device provided in the embodiments of this application;

[0022] Figure 3 A cross-sectional view of the valve device provided in the embodiments of this application;

[0023] Figure 4 This is a schematic diagram of the valve device provided in the embodiments of this application in mode 4.

[0024] Figure 5 This is a schematic diagram of the valve device provided in the embodiments of this application in mode 2.

[0025] Figure 6 This is a schematic diagram of the valve device provided in the embodiments of this application in mode 1;

[0026] Figure 7 This is a schematic diagram of the valve device provided in the embodiments of this application in mode 5.

[0027] Figure 8 This is a schematic diagram of the valve device provided in the embodiments of this application in mode 3.

[0028] Figure 9This is a schematic diagram of the valve device provided in the embodiment of this application in mode 6.

[0029] Figure label:

[0030] 1. Housing; 101. First connecting part; 102. Second connecting part; 103. Receiving cavity; 104. First through hole; 105. First fixing part; 105a. First connecting hole; 106. Annular limiting groove; 107. First limiting step; 108. Second limiting step;

[0031] 2. Valve core; 21. Body; 210. Cavity; 210a. First channel; 210b. Second channel; 211. Second through hole; 22. Isolator; 23. First protrusion; 230. Third channel; 240. Fourth channel; 25. Splined shaft;

[0032] 3. Sealing assembly; 31. Seal; 32. Sealing ring;

[0033] 4. Elastic components;

[0034] 5. Cover body; 51. Second fixing part; 510. Second connecting hole; 52. Groove; 53. Boss; 530. Fourth connecting hole;

[0035] 6. First connecting component;

[0036] 7. O-rings;

[0037] 8. Actuator; 81. Third connecting hole;

[0038] 9. Second connecting component;

[0039] 10. Shaft seal;

[0040] 11. First bushing;

[0041] 12. Second bushing. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0043] In the description of this application, unless otherwise expressly specified and limited, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; unless otherwise specified or explained, the term "multiple" refers to two or more, and the term "various types" refers to two or more; the terms "connection," "fixed," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0044] In the description of this specification, it should be understood that the directional terms such as "upper" and "lower" used in the embodiments of this application are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should also be understood that when it is mentioned that an element is connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected to the other element "upper" or "lower" through an intermediate element.

[0045] Reference Figure 1 , Figure 2 and Figure 3 As shown, Figure 1 This is an exploded view of the valve device provided in the embodiments of this application. Figure 2 This is a schematic diagram of the valve core of the valve device provided in the embodiments of this application. Figure 3 This is a cross-sectional view of a valve device provided in an embodiment of this application. This embodiment discloses a valve device, which includes a housing 1, a cover 5, a first connecting member 6, a valve core 2, a sealing assembly 3, and an elastic member 4. The housing 1 is provided with a receiving cavity 103 and a plurality of first through holes 104, which are respectively connected to the receiving cavity 103. The housing 1 also includes a first fixing part 105, which has a first connecting hole 105a.

[0046] The cover 5 is placed on the housing 1 and partially extends into the receiving cavity 103. The cover 5 includes a second fixing part 51, which has a second connecting hole 510.

[0047] The first connector 6 is respectively inserted through the second connecting hole 510 and the first connecting hole 105a to connect the housing 1 and the cover 5.

[0048] The valve core 2 is located within the receiving cavity 103 and is rotatably connected to the housing 1, allowing the valve core 2 to rotate relative to the housing 1 between multiple positions. The valve core 2 is provided with multiple second through holes 211. When the valve core 2 is in a preset position relative to the housing 1, at least a portion of the second through holes 211 communicates with at least a portion of the first through holes 104, forming a fluid passage.

[0049] The sealing assembly 3 is circumferentially disposed on the housing 1 around the first through hole 104, and the valve core 2 abuts against the sealing assembly 3.

[0050] The elastic element 4 is disposed on the housing 1 and located on the side of the sealing assembly 3 away from the valve core 2, and one end of the elastic element 4 abuts against the sealing assembly 3.

[0051] In this embodiment, the valve device also includes an O-ring 7. One end of the cover 5 that extends into the receiving cavity 103 is provided with a groove 52. The O-ring 7 is disposed in the groove 52, and one side of the O-ring 7 abuts against the inner wall of the groove 52, while the other side of the O-ring 7 abuts against the inner wall of the housing 1, so as to ensure the sealing of the connection between the cover 5 and the housing 1.

[0052] In this embodiment, the valve device further includes an actuator 8 and a second connector 9. The actuator 8 is provided with a third connecting hole 81. The cover 5 is provided with a boss 53 on the side facing away from the housing 1. The boss 53 is provided with a fourth connecting hole 530. The second connector 9 passes through the third connecting hole 81 and the fourth connecting hole 530 to fix the actuator 8 to the cover 5. The top of the valve core 2 is provided with a spline shaft 25 connected to the actuator 8. The spline shaft 25 passes through the cover 5 and is connected to the actuator 8. The actuator 8 is used to drive the valve core 2 to rotate so that different second through holes 211 communicate with the first through hole 104.

[0053] In this embodiment, the valve device further includes a shaft seal 10, a first bushing 11, and a second bushing 12. The first bushing 11 is fitted onto the end of the splined shaft 25 away from the housing 1, serving to support the splined shaft 25 and absorb impact and vibration to improve the stability and reliability of the valve core 2 during rotation. The shaft seal 10 is fitted onto the splined shaft 25 and located at the connection between the splined shaft 25 and the cover 5, ensuring the sealing between the splined shaft 25 and the cover 5. The second bushing 12 is fitted onto the housing 1 and located at the connection between the valve core 2 and the housing 1, reducing wear between the valve core 2 and the housing 1 during rotation, reducing noise and vibration, improving the service life of the valve core 2, and ensuring the stability of the valve device during operation.

[0054] This embodiment includes a sealing component 3 and an elastic element 4. The sealing component 3 is circumferentially arranged around the first through hole 104 on the housing 1. The valve core 2 abuts against the sealing component 3, thereby ensuring the sealing performance when the second through hole 211 communicates with the first through hole 104. The elastic element 4 is arranged on the housing 1 and located on the side of the sealing component 3 away from the valve core 2, with one end of the elastic element 4 abutting against the sealing component 3. When the valve core 2 rotates, the elastic force of the elastic element 4 reduces the rotational torque of the valve core 2. Furthermore, the elastic element 4 can compensate for wear when the sealing component 3 is worn, reducing the risk of internal leakage of the valve device, thereby ensuring the normal operation of the valve device and improving work efficiency.

[0055] Reference Figure 3 As shown, the housing 1 includes a first connecting portion 101 and a plurality of second connecting portions 102. The first connecting portion 101 and the plurality of second connecting portions 102 are distributed along the circumference of the housing 1. The first connecting portion 101 is provided with two first through holes 104, and each second connecting portion 102 is provided with a first through hole 104. The area of ​​the first through hole 104 in the first connecting portion 101 is smaller than the area of ​​the first through hole 104 in the second connecting portion 102. The first through hole 104 in the first connecting portion 101 is D-shaped, and the first through hole 104 in the second connecting portion 102 is O-shaped.

[0056] In this embodiment, there is one first connecting part 101 and seven second connecting parts 102, so that the housing 1 has a total of nine first through holes 104 to form a nine-way valve. It can be understood that in other embodiments, the number of first through holes 104 can also be set as needed to form a three-way valve, a five-way valve, a six-way valve, etc.

[0057] Reference Figure 3 As shown, the housing 1 has a limiting portion around the first through hole 104 in the circumferential direction. The elastic member 4 is disposed within the limiting portion and abuts against the inner wall of the limiting portion. The limiting portion is used to limit the elastic member 4 in the circumferential direction and in a first direction to prevent the elastic member 4 from shifting, thereby ensuring the stability of the elastic member 4. The first direction is... Figure 3 The X direction in the figure is the direction in which the height of shell 1 extends.

[0058] Reference Figure 3 As shown, in some embodiments, at the first connecting portion 101, the limiting portion is provided as an annular limiting groove 106. The annular limiting groove 106 is formed on the periphery of the first through hole 104, forming a protrusion (not shown in the figure) in the middle of the first connecting portion 101. The first through hole 104 is formed on the protrusion. The elastic member 4 is sleeved on the protrusion and disposed in the annular limiting groove 106, with one end of the elastic member 4 abutting against the bottom wall of the annular limiting groove 106 and the other end of the elastic member 4 abutting against the sealing assembly 3. The annular limiting groove 106 is used to limit the elastic member 4 to prevent the elastic member 4 from shifting when compressed. One end of the sealing assembly 3 abuts against the elastic member 4, and the other end of the sealing assembly 3 abuts against the valve core 2.

[0059] In this embodiment, the elastic element 4 is a rubber pad, and the elastic element 4 has two openings. Each opening of the elastic element 4 is correspondingly provided with each first through hole 104 of the first connecting part 101, and each opening of the elastic element 4 is connected to each first through hole 104 of the first connecting part 101. It can be understood that in other embodiments, the elastic element 4 can also be other structures, such as a spring.

[0060] In this embodiment, the limiting part at the first connecting part 101 is provided as an annular limiting groove 106. It can be understood that in other embodiments, the limiting part at both the first connecting part 101 and the second connecting part 102 may be provided as an annular limiting groove 106.

[0061] In this embodiment, the sealing assembly 3 includes a sealing element 31. One end of the sealing element 31 abuts against the valve core 2, and the other end of the sealing element 31 is at least partially located in the annular limiting groove 106 and abuts against the elastic element 4. The sealing element 31 is limited by the annular limiting groove 106 to prevent the sealing assembly 3 from shifting. The sealing element 31 has two openings. Each opening of the sealing element 31 is correspondingly provided with each of the first through holes 104 of the first connecting part 101, and each opening of the sealing element 31 communicates with each of the first through holes 104 of the first connecting part 101.

[0062] Reference Figure 3 As shown, in some embodiments, at the second connecting portion 102, a limiting portion is provided as a first limiting step 107, which is formed on the inner wall of the first through hole 104. A second limiting step 108 is also formed on the inner wall of the first through hole 104, located at the end of the first limiting step 107 near the valve core 2. An elastic member 4 is disposed at the first limiting step 107, which limits the elastic member 4 in the circumferential and first directions to prevent it from shifting when compressed and to prevent it from falling out of the first through hole 104. A sealing assembly 3 is disposed at the second limiting step 108, abutting against it. The second limiting step 108 limits the sealing assembly 3 in the circumferential and first directions to prevent it from shifting. The first direction is the X direction in the figure.

[0063] In this embodiment, the limiting part at the second connecting part 102 is set as the first limiting step 107. It can be understood that in other embodiments, the limiting part at both the first connecting part 101 and the second connecting part 102 may be set as the first limiting step 107.

[0064] In this embodiment, the elastic element 4 is a spring. The spring has the characteristics of high elasticity and high durability to overcome the inertia of the valve core 2 when rotating and the frictional resistance between the valve core 2 and the sealing assembly 3, thereby ensuring the normal operation of the valve device.

[0065] In this embodiment, the sealing assembly 3 includes a sealing element 31 and a sealing ring 32. The sealing element 31 is disposed at the second limiting step 108, with one end of the sealing element 31 abutting against the elastic element 4 and the other end of the sealing element 31 abutting against the valve core 2. The sealing ring 32 is sleeved on the end of the sealing element 31 that abuts against the elastic element 4, and the sealing ring 32 includes an abutting portion that abuts against the second limiting step 108 to ensure the sealing between the sealing element 31 and the second limiting step 108, preventing fluid from flowing out between the sealing element 31 and the second limiting step 108, thereby ensuring the normal operation of the valve device.

[0066] In this embodiment, the seal 31 is made of plastic material. Plastic material has high strength and good corrosion resistance, which improves the service life of the seal 31 and reduces costs. It is understood that in other embodiments, the seal 31 may also be made of other materials, such as rubber.

[0067] Reference Figure 2 and Figure 3 As shown, the valve core 2 includes a body 21, an isolating member 22, a first protrusion 23, and a second protrusion 24. The body 21 has a cavity 210 and multiple second through holes 211. The isolating member 22 is connected to the body 21 to divide the cavity 210 into a first channel 210a and a second channel 210b. The first protrusion 23 is connected to the body 21 and has a third channel 230. The second protrusion 24 is connected to the body 21 and has a fourth channel 240. The first channel 210a, the second channel 210b, the third channel 230, and the fourth channel 240 are respectively connected to two second through holes 211.

[0068] In this embodiment, along the height extension direction of the housing 1, the upper surfaces of the first protrusion 23 and the second protrusion 24 are provided with a preset distance H from the inner surface of the body 21 to ensure that the two first through holes 104 of the first channel 210a can be connected, and to ensure that the two first through holes 104 of the second channel 210b can be connected.

[0069] Based on this embodiment, a vehicle is also disclosed, which includes a body and a thermal management system. The thermal management system is disposed on the body and includes the valve device of any of the above embodiments.

[0070] Reference Figure 4 As shown, Figure 4This is a schematic diagram of the valve device provided in this application embodiment in mode 4. In a specific application scenario, according to the working mode of the integrated thermal management system, the nine-way valve has a total of 6 modes. The nine first through holes 104 of the housing 1 are labeled as a, b, c, d, e, f, g, h, and i, respectively. In mode 4, the rotation angle of the valve core 2 is 0°. At this time, the valve core 2 is in the first position, that is, hole a and hole c are connected through the first channel 210a, hole b and hole d are connected through the fourth channel 240, hole f and hole h are connected through the second channel 210b, hole e and hole g are connected through the third channel 230, and hole i is closed.

[0071] Reference Figure 5 As shown, Figure 5 This is a schematic diagram of the valve device provided in the embodiment of this application in mode 2. In mode 2, the valve core 2 rotates at an angle of 45°. At this time, the valve core 2 is in the second position, that is, hole a and hole b are connected through the third channel 230, hole c and hole d are connected through the second channel 210b, hole f and hole h are connected through the fourth channel 240, hole e and hole g are connected through the first channel 210a, and hole i is closed.

[0072] Reference Figure 6 As shown, Figure 6 This is a schematic diagram of the valve device provided in the embodiment of this application in mode 1. In mode 1, the rotation angle of the valve core 2 is 90°. At this time, the valve core 2 is in the third position, that is, the a hole and the b hole are connected through the first channel 210a, the c hole and the d hole are connected through the fourth channel 240, the g hole and the h hole are connected through the third channel 230, the e hole and the f hole are connected through the second channel 210b, and the i hole is closed.

[0073] Reference Figure 7 As shown, Figure 7 This is a schematic diagram of the valve device provided in the embodiment of this application in mode 5. In mode 5, the rotation angle of the valve core 2 is 180°. At this time, the valve core 2 is in the fourth position, that is, the a hole and the c hole are connected through the fourth channel 240, the b hole and the d hole are connected through the first channel 210a, the f hole and the h hole are connected through the third channel 230, the e hole and the i hole are connected through the second channel 210b, and the g hole is closed.

[0074] Reference Figure 8 As shown, Figure 8 This is a schematic diagram of the valve device provided in the embodiment of this application in mode 3. In mode 3, the rotation angle of the valve core 2 is 225°. At this time, the valve core 2 is in the fifth position, that is, the a hole and the b hole are connected through the second channel 210b, the c hole and the d hole are connected through the third channel 230, the f hole and the h hole are connected through the first channel 210a, the e hole and the i hole are connected through the fourth channel 240, and the g hole is closed.

[0075] Reference Figure 9 As shown, Figure 9 This is a schematic diagram of the valve device provided in this application embodiment in mode 6. Mode 6 is when the rotation angle of the valve core 2 is 270°. At this time, the valve core 2 is in the sixth position, that is, the a hole and the b hole are connected through the fourth channel 240, the c hole and the d hole are connected through the first channel 210a, the h hole and the i hole are connected through the second channel 210b, the e hole and the f hole are connected through the third channel 230, and the g hole is closed.

[0076] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A valve device, characterized in that, include: A housing, wherein the housing is provided with a plurality of first through holes; The valve core is provided with a plurality of second through holes and is rotatably connected to the housing so that the valve core can rotate between multiple positions relative to the housing. When the valve core is in a preset position relative to the housing, at least a portion of the second through holes communicates with at least a portion of the first through holes to form a fluid channel. A sealing assembly is circumferentially disposed on the housing around the first through hole, and the valve core abuts against the sealing assembly; An elastic element is disposed in the housing and located on the side of the sealing assembly away from the valve core, and one end of the elastic element abuts against the sealing assembly.

2. The valve device according to claim 1, characterized in that, The housing is provided with a limiting portion around the first through hole in the circumferential direction, and the elastic element is disposed in the limiting portion and abuts against the inner wall of the limiting portion.

3. The valve device according to claim 2, characterized in that, The limiting part is configured as a first limiting step, which is opened on the inner wall of the first through hole. The elastic element is disposed at the first limiting step, and one end of the elastic element abuts against the first limiting step, while the other end of the elastic element abuts against the sealing component.

4. The valve device according to claim 3, characterized in that, The inner wall of the first through hole is also provided with a second limiting step. The second limiting step is located at the end of the first limiting step near the valve core. The sealing component is disposed at the second limiting step and abuts against the second limiting step.

5. The valve device according to claim 4, characterized in that, The sealing assembly includes a sealing element and a sealing ring. One end of the sealing element abuts against the elastic element, and the other end of the sealing element abuts against the valve core. The sealing ring is sleeved on the end of the sealing element that abuts against the elastic element, and the sealing ring abuts against the second limiting step.

6. The valve device according to claim 2, characterized in that, The limiting part is configured as an annular limiting groove, which is opened on the periphery of the first through hole. The elastic element is disposed in the annular limiting groove, and one end of the elastic element abuts against the bottom wall of the annular limiting groove, while the other end of the elastic element abuts against the sealing assembly.

7. The valve device according to claim 1, characterized in that, The elastic element is a spring.

8. The valve device according to claim 1, characterized in that, The housing includes a first connecting portion and a plurality of second connecting portions. The first connecting portion and the plurality of second connecting portions are distributed along the circumference of the housing. The first connecting portion is provided with two first through holes, and each of the second connecting portions is provided with one first through hole. The area of ​​the first through hole located in the first connecting portion is smaller than the area of ​​the first through hole located in the second connecting portion.

9. The valve device according to any one of claims 1 to 8, characterized in that, The valve core includes a body, an isolator, a first protrusion, and a second protrusion. The body has a cavity and a plurality of second through holes. The isolator is connected to the body to divide the cavity into a first channel and a second channel. The first protrusion is connected to the body and has a third channel. The second protrusion is connected to the body and has a fourth channel. The first channel, the second channel, the third channel, and the fourth channel are respectively connected to two second through holes.

10. A vehicle, characterized in that, The device includes a vehicle body and a thermal management system, wherein the thermal management system is disposed on the vehicle body and the thermal management system includes a valve device as described in any one of claims 1 to 9.

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