Seal, multi-way valve, thermal management system, and vehicle

Abstract

The application discloses a sealing piece, a multi-way valve, a thermal management system and a vehicle. The sealing valve comprises a body and a sealing rib assembly. The body is provided with a plurality of avoiding holes which penetrate through the body in the thickness direction of the body. The sealing rib assembly comprises a plurality of sealing rings which are arranged one by one in correspondence with the plurality of avoiding holes. The sealing ring is arranged around the avoiding hole. The sealing ring comprises a first side wall extending in a first direction and a second side wall extending in a second direction. The first side wall and the second side wall intersect to form a corner. At least one corner of the sealing ring has a circular arc chamfer. The radius of the circular arc chamfer is R1. The length of the first side wall in the first direction is L1. The length of the second side wall in the second direction is L2. The sealing piece satisfies 0.08<=R1 / L1<=0.2 and / or 0.08<=R1 / L2<=0.2. The first direction intersects the second direction and the thickness direction, respectively.

Description

Technical Field

[0001] This invention relates to the field of fluid machinery, and more particularly to a seal, a multi-way valve, a thermal management system, and a vehicle. Background Technology

[0002] The relevant content describes a seal installed between the valve core and valve body inside an electronic multi-way valve. This seal is used to seal the flow path between the valve core and valve body. Existing seals suffer from uneven sealing. There is room for optimization and improvement in these seals. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one object of the present invention is to provide a sealing element with uniform surface pressure distribution and good sealing effect.

[0004] According to an embodiment of the present invention, a sealing element includes: a body having a plurality of clearance holes penetrating the body in the thickness direction; and a sealing rib assembly including a plurality of sealing rings corresponding to the plurality of clearance holes, the sealing rings surrounding the clearance holes, each sealing ring including a first sidewall extending in a first direction and a second sidewall extending in a second direction, the first sidewall and the second sidewall intersecting to form a corner, at least one corner of the sealing ring having a rounded chamfer with a radius of R1, the first sidewall having a length of L1 in the first direction, the second sidewall having a length of L2 in the second direction, and the sealing element satisfying: 0.08≤R1 / L1≤0.2, and / or 0.08≤R1 / L2≤0.2, the first direction intersecting the second direction and the thickness direction respectively.

[0005] According to embodiments of the present invention, by providing a sealing rib assembly, the sealing assembly forms a sealing ring that surrounds the clearance hole, which further improves the sealing effect of the sealing element and enhances the reliability and stability of the multi-way valve. Furthermore, by providing a rounded chamfer at the corner of the sealing ring, the surface pressure around the corner is made similar to the surface pressure of the first and second sidewalls of the sealing ring, resulting in uniform surface pressure across the entire sealing ring and a good sealing effect. The radius R1 of the rounded chamfer and the length L1 of the first sidewall along the first direction satisfy: 0.08 ≤ R1 / L1 ≤ 0.2, and / or the radius R1 of the rounded chamfer and the length L2 of the second sidewall along the second direction satisfy: 0.08 ≤ R1 / L2 ≤ 0.2, which effectively improves the sealing effect of the sealing element without affecting the normal operation of the clearance hole and the valve core, thus enhancing the reliability and stability of the multi-way valve equipped with the sealing element of the present invention.

[0006] According to some embodiments of the present invention, the seal R1 / L1 satisfies: 0.11≤R1 / L1≤0.16; and / or 0.11≤R1 / L2≤0.16.

[0007] According to some embodiments of the present invention, the sealing rib assembly includes a plurality of first ribs extending along a first direction and a plurality of second ribs extending along a second direction, the intersecting first ribs and second ribs defining the sealing ring.

[0008] According to some embodiments of the present invention, in the sealing element, any adjacent clearance holes define the sealing ring by different first ribs and / or second ribs.

[0009] According to some embodiments of the present invention, the body is an arc-shaped part, and the sealing ring is disposed on the side of the body away from the center.

[0010] According to some embodiments of the present invention, the sealing element has a wear-resistant layer on the sidewall of the body facing the center.

[0011] According to some embodiments of the present invention, the sealing element is a one-piece molded part.

[0012] The present invention also proposes a multi-way valve.

[0013] A multi-way valve according to an embodiment of the present invention includes: a housing having a plurality of flow holes; a valve core rotatably disposed within the housing, the valve core defining at least one switching flow channel, the valve core rotating such that the switching flow channel communicates with different flow holes; and a sealing element, the sealing element being any of the sealing elements described in the above embodiments, the sealing element being located between the housing and the valve core, and the plurality of clearance holes corresponding one-to-one with the plurality of flow holes.

[0014] According to embodiments of the present invention, the multi-way valve can connect with different flow orifices by setting a switching flow channel, enabling the multi-way valve to perform interval switching and proportional adjustment functions. This achieves integrated arrangement, reduces the number of driving components, helps reduce costs, saves installation space, and ensures uninterrupted flow. Furthermore, by setting the aforementioned sealing element, direct connection between adjacent flow orifices is prevented, improving the reliability and stability of the multi-way valve.

[0015] According to some embodiments of the multi-way valve of the present invention, the flow passage has at least three orifices; the switching channel includes a first switching channel and a second switching channel, the first switching channel being configured such that one of the flow passages is switched to be connected to at least two of the flow passages; the second switching channel being configured such that different flow passages are switched to be connected, and the second switching channel being further configured to change the number of connected flow passages.

[0016] According to some embodiments of the multi-way valve of the present invention, the first switching flow channel extends along the rotation direction of the valve core, and a plurality of flow holes are arranged sequentially in the extension direction of the first switching flow channel.

[0017] According to some embodiments of the present invention, the multi-way valve has at least two rows of through holes arranged along the central axis of the valve core. Each row of through holes includes a plurality of flow through holes arranged along the rotation direction of the valve core. The at least two rows of through holes include a first row of through holes and a second row of through holes. At least two flow through holes in the first row of through holes are switched and connected through a first switching flow channel. The second switching flow channel is configured to connect the flow through holes of the first row of through holes and the second row of through holes.

[0018] According to some embodiments of the multi-way valve of the present invention, the second switching flow channel is disposed in the valve core, the second switching flow channel is provided with at least one first connecting hole and a plurality of second connecting holes, the first connecting hole is connected to or offset from the first row of through holes, and the second connecting hole is connected to or offset from the second row of through holes.

[0019] According to some embodiments of the multi-way valve of the present invention, the first connecting hole is configured to communicate simultaneously with at least two of the flow through holes, and the second switching flow path communicates with one of the flow through holes through the second connecting hole.

[0020] According to some embodiments of the multi-way valve of the present invention, in the rotation direction of the valve core, the first connecting hole is provided on both sides of the first switching flow channel; in the extension direction of the central axis of the valve core, the first connecting hole and / or the first switching flow channel are arranged opposite to at least one second connecting hole.

[0021] According to some embodiments of the present invention, in a multi-way valve, each of the first connecting holes is located at the end of the corresponding first connecting hole away from the first switching flow channel, where the second connecting hole is disposed opposite to the first connecting hole.

[0022] According to some embodiments of the present invention, in the multi-way valve, a second connecting hole is provided at both ends of the first switching flow channel in the extension direction of the central axis of the valve core.

[0023] The present invention also proposes a thermal management system.

[0024] According to an embodiment of the present invention, a thermal management system includes: a manifold, wherein the manifold has a plurality of flow channels for circulating media; a multi-way valve, wherein the multi-way valve is a multi-way valve as described in any of the above embodiments, the multi-way valve is disposed on the manifold, the plurality of flow channels are respectively connected to a plurality of flow through holes, and the valve core rotates to control the multiple flow channels to switch connections to control the thermal management system to switch modes.

[0025] According to the thermal management system of the present invention, by setting a first switching flow channel, one flow passage can be switched to be connected with at least two flow passages, and by setting a second switching flow channel, different flow passages can be switched to be connected and the number of connected flow passages can be changed, so that the multi-way valve can have both reversing function and proportional regulation function, realizing integrated layout, reducing the number of driving components, which is conducive to reducing costs, saving installation space, and achieving the purpose of continuous flow, thereby improving the reliability of the thermal management system.

[0026] The present invention also proposes a vehicle.

[0027] A vehicle according to an embodiment of the present invention includes a thermal management system according to any of the above embodiments.

[0028] According to the vehicle of the present invention, by setting a first switching flow channel, one flow passage can be switched to be connected with at least two flow passages, and by setting a second switching flow channel, different flow passages can be switched to be connected and the number of connected flow passages can be changed, so that the multi-way valve can have both reversing function and proportional adjustment function, realizing integrated layout, reducing the number of driving components, which is conducive to reducing costs, saving installation space, and achieving the purpose of continuous flow, improving the reliability of the thermal management system and enhancing the overall performance of the vehicle.

[0029] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0030] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0031] Figure 1 This is a schematic diagram of the structure of the sealing element according to an embodiment of the present invention;

[0032] Figure 2 It is based on Figure 1 A magnified view of region A in the example shown;

[0033] Figure 3 This is an exploded view of a multi-way valve according to an embodiment of the present invention;

[0034] Figure 4 This is a schematic diagram of the structure of the housing according to an embodiment of the present invention;

[0035] Figure 5 This is a cross-sectional view of a multi-way valve according to an embodiment of the present invention;

[0036] Figure 6 This is a schematic diagram of the valve core according to an embodiment of the present invention;

[0037] Figure 7 This is a schematic diagram of the installation of the housing and valve core in the first switching position according to an embodiment of the present invention;

[0038] Figure 8 This is a schematic diagram of the installation of the housing and valve core in the second switching position according to an embodiment of the present invention;

[0039] Figure 9 This is a schematic diagram of the installation of the housing and valve core in the third switching position according to an embodiment of the present invention;

[0040] Figure 10 This is a schematic diagram of the installation of the housing and valve core in the fourth switching position according to an embodiment of the present invention.

[0041] Figure label:

[0042] Multi-way valve 1000,

[0043] Seal 100, Body 1, Clearance Hole 11

[0044] Sealing rib assembly 2, sealing ring 20, first sidewall 201, second sidewall 202, corner 203, first rib 21, second rib 22.

[0045] The housing 300 includes a first row of through holes 31, a first through hole 311, a second through hole 312, a third through hole 313, a second row of through holes 32, a fourth through hole 321, and a fifth through hole 322.

[0046] Valve core 400, first switching flow channel 41, second switching flow channel 42, first connecting hole 421, second connecting hole 422.

[0047] Drive unit 500, cover plate 600. Detailed Implementation

[0048] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0049] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0050] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0051] Hereinafter, with reference to the accompanying drawings, a sealing element 100 according to an embodiment of the present invention will be described.

[0052] like Figure 1 and Figure 2 As shown, the sealing member 100 of this embodiment includes: a body 1 and a sealing rib assembly 2. The body 1 is provided with a plurality of clearance holes 11, which penetrate the body 1 in the thickness direction. The sealing rib assembly 2 includes a plurality of sealing rings 20, which are arranged one-to-one with the plurality of clearance holes 11. The sealing rings 20 are arranged around the clearance holes 11. The sealing rings 20 include a first sidewall 201 extending in a first direction and a second sidewall 202 extending in a second direction. The first sidewall 201 and the second sidewall 202 intersect to form a corner 203. At least one corner 203 of the sealing ring 20 has a rounded chamfer with a radius of R1. The length of the first sidewall 201 in the first direction is L1, and the length of the second sidewall 202 in the second direction is L2. The sealing member 100 satisfies: 0.08≤R1 / L1≤0.2, and / or 0.08≤R1 / L2≤0.2. The first direction intersects the second direction and the thickness direction, respectively.

[0053] The seal 100 serves a sealing function, preventing fluid or solid particles from leaking from adjacent mating surfaces. The seal 100 has a wide range of applications. In an embodiment of the present invention, when the seal 100 is used between the valve core and valve body inside the multi-way valve 1000, the seal 100 can prevent fluid from flowing between the valve body and valve core, thus preventing leakage from the multi-way valve 1000.

[0054] Multiple clearance holes 11 are provided on the main body 1. Fluid can flow between the valve core and the valve body through the clearance holes 11. By providing clearance holes 11, interference with the flow of fluid can be avoided. The sealing element 100 is installed between the inner wall of the valve body and the outer peripheral wall of the valve core, which can prevent fluid from flowing between the valve core and the valve body and prevent leakage of the multi-way valve 1000.

[0055] Understandably, the valve core and / or valve body are provided with multiple through holes for the flow medium, and the body 1 is provided with multiple clearance holes 11. The multiple clearance holes 11 can be provided one-to-one with the multiple through holes. The sealing element 100 separates the multiple through holes from each other to prevent adjacent through holes from being directly connected and causing fluid leakage, thereby improving the reliability and stability of the multi-way valve 1000.

[0056] In this embodiment of the invention, the sealing ring 20 further includes a sealing rib assembly 2, which comprises multiple sealing rings 20 that surround the clearance holes 11, i.e., the multiple sealing rings 20 space the multiple clearance holes 11 apart from each other. When the sealing element 100 is installed between the inner wall of the valve body and the outer peripheral wall of the valve core, the sealing effect of the sealing element 100 can be improved by setting the sealing rings 20, and the multiple through holes on the valve core or valve body can be further spaced apart from each other, thereby further improving the reliability and stability of the multi-way valve 1000.

[0057] The sealing ring 20 includes a first sidewall 201 extending along a first direction and a second sidewall 202 extending along a second direction. The first sidewall 201 and the second sidewall 202 are connected to each other, and the intersection of the first sidewall 201 and the second sidewall 202 forms a corner 203. The first sidewall 201 and the second sidewall 202 are connected to form the sealing ring 20. Here, the first direction and the second direction can be straight directions, and the first sidewall 201 and the second sidewall 202 extend in a straight direction; the first direction and / or the second direction can also be curved directions, that is, the extension direction of the first sidewall 201 and / or the second sidewall 202 can also be a curved direction, all of which fall within the protection scope of this invention.

[0058] The first direction intersects with both the second direction and the thickness direction. The sealing rib assembly 2 is connected to the side of the body 1 along its thickness direction, allowing the sealing ring 20 to protrude beyond the thickness direction of the body 1. It is understood that the seal 100 undergoes elastic deformation under pressure during operation, improving the sealing effect. By providing the sealing rib assembly 2 protruding from the body 1 of the seal 100, the sealing effect between the multiple clearance holes 11 can be further improved.

[0059] Optionally, the sealing rib assembly 2 can be disposed only on the side of the body 1 that contacts the outer peripheral wall of the valve core. Compared to direct contact between the body 1 and the valve core, the contact area between the seal 100 and the valve core is reduced by the sealing rib assembly 2. This results in a smaller frictional torque between the valve core and the seal 100, improving the smoothness of valve core rotation. Furthermore, it does not compromise the sealing function of the seal 100, thereby enhancing the reliability and stability of the multi-way valve 1000. The sealing rib assembly 2 also increases the structural strength of the seal 100, reducing the likelihood of breakage due to impact and improving the operational stability of the seal 100.

[0060] Alternatively, the sealing rib assembly 2 may be disposed only on the side of the body 1 that contacts the inner wall of the valve housing; or, the sealing rib assembly 2 may be disposed on both the side of the body 1 that contacts the outer peripheral wall of the valve core and the side of the body 1 that contacts the inner wall of the valve housing. The arrangement of the sealing rib assembly 2 can be selected according to actual needs, and all of these fall within the protection scope of this invention.

[0061] It should be noted that the first sidewall 201 and the second sidewall 202 of the sealing ring 20 are both strip-shaped pieces with similar shapes. During sealing, the deformation of the first sidewall 201 and the second sidewall 202 under pressure is similar, resulting in similar surface pressures at the first sidewall 201 and the second sidewall 202 of the sealing ring 20. However, at the corner of the sealing ring 20, i.e., the intersection of the first and second sidewalls, the surface pressure at the center of the corner is higher due to the influence of the intersecting edge, while the surface pressure around the center of the corner is lower, and the surface pressure around the corner is much lower than that at the first and second sidewalls of the sealing ring. This results in uneven surface pressure distribution across the sealing ring, with a higher risk of leakage at locations with lower surface pressure. Fluid is more likely to leak from the area around the corner, which is detrimental to sealing the clearance hole and reduces the sealing effect of the seal.

[0062] Therefore, in embodiments of the present invention, at least one corner 203 of the sealing ring 20 has a rounded chamfer. By providing a rounded chamfer at the corner 203 of the sealing ring 20, the surface pressure around the center position of the corner 203 can be increased, making the surface pressure around the corner 203 similar to the surface pressure of the first sidewall 201 and the second sidewall 202 of the sealing ring 20. The surface pressure of all parts of the sealing ring 20 is uniform, completing a complete and relatively uniform sealing surface pressure around the clearance hole 11, thereby improving the sealing effect of the seal 100.

[0063] It should also be noted that the radius R1 of the chamfer and the length L1 of the first sidewall 201 along the first direction satisfy the condition: 0.08 ≤ R1 / L1 ≤ 0.2, and / or the radius R1 of the chamfer and the length L2 of the second sidewall 202 along the second direction satisfy the condition: 0.08 ≤ R1 / L2 ≤ 0.2. Both excessively large and small chamfers will affect the working stability of the seal 100. When the chamfer is too large, it will interfere with the clearance hole 11, interfering with the flow of the fluid medium and affecting the functionality of the clearance hole 11. On the other hand, when the chamfer is too large, the area of ​​the corner 203 becomes too large, increasing the contact area between the seal 100 and the valve core. When the valve core needs to rotate relative to the valve body, it needs to resist a larger frictional torque, resulting in poor rotation of the valve core and reduced sensitivity of the multi-way valve 1000 in controlling the fluid. When the chamfer radius is too small, it is impossible to form a large surface pressure at the corner 203 of the sealing ring 20, resulting in uneven surface pressure distribution, which is detrimental to the sealing effect of the seal 100. Setting the radius R1 of the chamfer radius within the above range can effectively improve the sealing effect of the seal 100 without affecting the normal operation of the clearance hole 11 and the valve core.

[0064] Optionally, the radius R1 of the chamfer may only satisfy the dimensional requirement between the length L1 of the first sidewall 201 along the first direction, or the radius R1 of the chamfer may only satisfy the dimensional requirement between the length L2 of the second sidewall 202 along the second direction, or the radius R1 of the chamfer may satisfy the dimensional requirement between the length L1 of the first sidewall 201 along the first direction and the length L2 of the second sidewall 202 along the second direction.

[0065] Optionally, the ratio of the radius R1 of the rounded chamfer to the length L1 of the first sidewall 201 along the first direction can be 0.08, 0.09, 0.1, 0.15, 0.2, etc.; Optionally, the ratio of the radius R1 of the rounded chamfer to the length L2 of the second sidewall 202 along the second direction can be 0.08, 0.1, 0.12, 0.15, 0.16, 0.19, 0.2, etc.

[0066] According to an embodiment of the present invention, the sealing member 100, by providing the sealing rib assembly 2, forms a sealing ring 20 that surrounds the clearance hole 11, which can further improve the sealing effect of the sealing member 100 and enhance the reliability and stability of the multi-way valve 1000. Furthermore, by providing a rounded chamfer at the corner 203 of the sealing ring 20, the surface pressure around the corner 203 is made similar to the surface pressure of the first sidewall 201 and the second sidewall 202 of the sealing ring 20, resulting in uniform surface pressure throughout the sealing ring 20 and a good sealing effect of the sealing member 100. The radius R1 of the rounded chamfer and the length L1 of the first sidewall 201 along the first direction satisfy the condition: 0.08≤R1 / L1≤0.2, and / or the radius R1 of the rounded chamfer and the length L2 of the second sidewall 202 along the second direction satisfy the condition: 0.08≤R1 / L2≤0.2. This can effectively improve the sealing effect of the seal 100 and will not affect the normal operation of the clearance hole 11 and the valve core, thereby improving the reliability and stability of the multi-way valve 1000 with the seal 100 of the present invention.

[0067] In some embodiments of the present invention, reference is made to... Figure 1 As shown, all corners 203 of the sealing rings 20 are provided with rounded chamfers, and the surface pressure of each sealing ring 20 is uniform, which improves the sealing effect of the sealing element 100.

[0068] In some specific embodiments of the present invention, the length L1 of the first sidewall 201 of the sealing ring 20 along the first direction is 18 mm, and the rounded chamfer of the corner 203 of the sealing ring 20 is 2.5 mm. The minimum surface pressure of this sealing ring 20 is 1.1 MPa, and the overall average surface pressure of the sealing ring 20 is 1 MPa. A sealing ring of the same size but without rounded chamfers at the corners has a minimum surface pressure of 0.42 MPa around the corners, while the surface pressure of the first and second sidewalls of this sealing ring is 1.05 MPa, posing a risk of leakage. By providing rounded chamfers at all corners 203 of the sealing ring 20, the surface pressure around the corners 203 is made similar to the surface pressure of the first sidewall 201 and the second sidewall 202 of the sealing ring 20, resulting in uniform surface pressure across the entire sealing ring 20 and improving the sealing effect of the seal 100.

[0069] In some embodiments of the present invention, R1 / L1 satisfies: 0.11≤R1 / L1≤0.16; and / or 0.11≤R1 / L2≤0.16.

[0070] Furthermore, setting the radius R1 of the chamfered arc to be greater than or equal to 0.11 and less than or equal to 0.16, and / or setting the radius R1 of the chamfered arc to be greater than or equal to 0.11 and less than or equal to 0.16, can make the surface pressure of each part of the sealing ring 20 more uniform, improve the sealing effect of the sealing element 100, and improve the reliability and stability of the multi-way valve 1000.

[0071] Optionally, the ratio of the radius R1 of the rounded chamfer to the length L1 of the first sidewall 201 along the first direction can be 0.11, 0.12, 0.13, 0.14, 0.15, 0.16, etc.; Optionally, the ratio of the radius R1 of the rounded chamfer to the length L2 of the second sidewall 202 along the second direction can be 0.11, 0.12, 0.13, 0.14, 0.15, 0.16, etc.

[0072] In some embodiments of the present invention, reference is made to Figure 1 As shown, the sealing rib assembly 2 includes a plurality of first ribs 21 extending along a first direction and a plurality of second ribs 22 extending along a second direction, with the intersecting first ribs 21 and second ribs 22 defining a sealing ring 20.

[0073] First ribs 21 extend along a first direction, and second ribs 22 extend along a second direction. Multiple first ribs 21 and multiple second ribs 22 intersect to form a sealing ring 20 surrounding the outer edge of the clearance hole 11. At least a portion of the first ribs 21 forms a first sidewall 201 of the sealing ring 20 extending along the first direction, and at least a portion of the second ribs 22 forms a second sidewall 202 of the sealing ring 20 extending along the second direction.

[0074] Compared to setting sealing rings 20 around the outer edge of the clearance hole 11, the present invention provides multiple first ribs 21 and second ribs 22, and uses the intersection of the first ribs 21 and second ribs 22 to form sealing rings 20. This not only reduces the manufacturing difficulty, but also further improves the structural strength of the seal 100, prevents the seal 100 from breaking due to impact, and improves the working stability of the seal 100.

[0075] Furthermore, the first direction is orthogonal to the thickness direction, and the second direction is orthogonal to the thickness direction. It can be understood that the seal 100 is installed between the inner wall of the valve housing and the outer peripheral wall of the valve core. Regardless of which first sidewall 201 of the body 1 the sealing rib assembly 2 is located on in the thickness direction, the sealing rib assembly 2 is always in close contact with the mating surface to achieve an isolation and sealing effect. Therefore, it is optimal for the dimensions of the sealing rib assembly 2 to be consistent in the thickness direction. The extension direction of the first rib 21 is orthogonal to the thickness direction, and the extension direction of the second rib 22 is orthogonal to the thickness direction. Furthermore, the thickness dimensions of the first rib 21 and the second rib 22 are consistent, ensuring a uniform sealing effect between the sealing rib assembly 2 and the mating surface, thus improving the sealing effect of the seal 100.

[0076] In some embodiments of the present invention, reference is made to... Figure 1 As shown, the first direction is orthogonal to the second direction, that is, the first rib 21 and the second rib 22 are orthogonal, and the intersection of the first rib 21 and the second rib 22 defines a rectangular sealing ring 20. The first rib 21 and the second rib 22 in the sealing rib assembly 2 are orthogonal. Compared with other arrangements of the first rib 21 and the second rib 22, the structure of the sealing member 100 in this embodiment of the invention is more stable, and the sealing member 100 reduces the occurrence of reduced sealing effect due to torsion under force, resulting in a better sealing effect.

[0077] In some embodiments of the present invention, reference is made to Figure 1 As shown, a chamfer is also provided at the intersection of the first rib 21 and the second rib 22 at the non-corner 203, to avoid the formation of large stress singularities in the seal 100 and improve the sealing effect of the seal 100.

[0078] In some embodiments of the present invention, any adjacent clearance holes 11 define a sealing ring 20 by different first ribs 21 and / or second ribs 22. Optionally, the sealing rings 20 at the outer edges of adjacent clearance holes 11 may be defined by different first ribs 21 and different second ribs 22; or, the sealing rings 20 at the outer edges of adjacent clearance holes 11 may be defined by the same first rib 21 and different second ribs 22; or, the sealing rings 20 at the outer edges of adjacent clearance holes 11 may be defined by different first ribs 21 and the same second rib 22, all of which fall within the protection scope of this application.

[0079] Reference Figure 1 As shown, a plurality of clearance holes 11 spaced apart along the second direction constitute a group of clearance holes 11, and there are at least two groups of clearance holes 11; the at least two groups of clearance holes 11 are spaced apart in the first direction. In the first group of clearance holes 11, all clearance holes 11 are defined by two identical second ribs 22 defining two sides of the rectangular sealing ring 20, and adjacent clearance holes 11 in the first group of clearance holes 11 are defined by different first ribs 21 defining the other two sides of the rectangular sealing ring 20.

[0080] Any adjacent clearance holes 11 can be defined by the same first rib 21 and / or second rib 22 to form a sealing ring 20, which reduces manufacturing difficulty and saves manufacturing costs.

[0081] In some embodiments of the present invention, the width of the sealing rib assembly 2 gradually increases in the direction toward the body 1 to improve the structural stability of the sealing rib assembly 2.

[0082] It is understandable that the main body 1 is an arc-shaped part, and the valve body is a cylindrical part. The sealing rib assembly 2 is constructed with an arc surface on the surface facing the valve body to improve the fit between the sealing rib assembly 2 and the inner wall of the valve body, thereby improving the sealing effect of the seal 100.

[0083] In some embodiments of the present invention, the body 1 is an arc-shaped part, and the sealing ring 20 is disposed on the side of the body 1 away from the center.

[0084] Reference Figure 3 and Figure 6 As shown, the sealing element 100 of this embodiment is applied to a multi-way valve 1000. Therefore, referring to the exploded view of the multi-way valve 1000 can facilitate the description of this invention and simplify the description. The sealing element 100 is installed between the inner wall of the valve housing and the outer peripheral wall of the valve core. The body 1 is an arc-shaped part. The side of the body 1 near the center is in contact with the outer peripheral wall of the valve core, and the side of the body 1 away from the center is in contact with the inner wall of the valve housing.

[0085] A sealing ring 20 is provided on the side of the body 1 away from the center, which can improve the sealing effect of the seal 100. In addition, the sealing ring 20 is provided on the side of the body 1 that contacts the inner wall of the valve shell, which can reduce the frictional torque between the valve core and the seal 100 and improve the smoothness of the valve core rotation.

[0086] In some embodiments of the present invention, a wear-resistant layer is provided on the side wall of the body 1 facing the center. The side of the body 1 of the seal 100 near the center is in direct contact with the valve core. Since the valve core needs to rotate reciprocally during operation, the seal 100 is easily worn, leading to seal failure. Therefore, in embodiments of the present invention, a wear-resistant layer is provided on the side of the body 1 that contacts the valve core to reduce wear on the seal 100 during valve core rotation, extend the service life of the seal 100, and improve the sealing effect of the seal 100.

[0087] In some embodiments of the present invention, the wear-resistant layer is a fluoroplastic film or a PTFE (polytetrafluoroethylene) film, which has a low coefficient of friction and is wear-resistant. Due to its wear resistance and low coefficient of friction, the wear of the valve core on the seal 100 during rotation is reduced, and the friction between the seal 100 and the valve core is decreased. The wear-resistant layer thus acts as a lubricant between the seal 100 and the valve core, improving the smoothness of valve core rotation and extending the service life of the seal 100.

[0088] In other embodiments of the present invention, the wear-resistant layer is constructed as a coating film, which may be a fluoroplastic film or a PTFE (polytetrafluoroethylene) film, etc., so that the coating film has the characteristics of wear resistance and low coefficient of friction, which is beneficial to improving the friction and wear performance of the seal 100. In the actual production process, the side of the coating film connected to the body 1 is first chemically treated, and the side of the body 1 connected to the coating film is chemically treated. Then, the coating film and the body 1 are assembled and injection molded so that the shape of the coating film and the body 1 are the same. Subsequently, the coating film is stamped by a stamping tool to form through holes on the coating film corresponding to the clearance holes 11 of the body 1.

[0089] In some embodiments of the present invention, the seal 100 is a one-piece molded part. This can improve the structural strength of the seal 100, reduce the occurrence of seal 100 breaking due to impact, and improve the working stability of the seal 100.

[0090] In other embodiments of the present invention, the body 1 and the sealing rib assembly 2 of the sealing member 100 are separate components. The sealing rib assembly 2 can be installed on the inner wall of the valve housing. When the body 1 and the valve housing are engaged, the sealing rib assembly 2 and the body 1 are connected to each other and work together.

[0091] In some specific embodiments of the present invention, the seal 100 is a rubber component.

[0092] The following is for reference. Figure 1 and Figure 2 The structure of a specific embodiment of the seal 100 of the present invention is described in detail.

[0093] A seal 100 is used in a multi-way valve 1000 and is disposed between the valve body and the valve core of the multi-way valve 1000. The seal 100 includes a body 1, which is an arc-shaped component. Multiple clearance holes 11 are provided on the body 1, and the clearance holes 11 penetrate the body 1 in the thickness direction. Multiple clearance holes 11 spaced circumferentially along the body 1 constitute a set of clearance hole 11 groups, and there are at least two sets of clearance hole 11 groups; the at least two sets of clearance hole 11 groups are spaced axially along the body 1.

[0094] The first clearance hole group 11 includes three clearance holes 11, and the second clearance hole group 11 includes two clearance holes 11. The two clearance holes 11 in the first clearance hole group are located at both ends of the first clearance hole group 11 in the axial direction and are directly opposite to the two clearance holes 11 in the second clearance hole group in the axial direction.

[0095] A sealing rib assembly 2 is provided on the side of the body 1 away from the center. The sealing rib assembly 2 includes a plurality of first ribs 21 extending along the axial direction of the body 1 and a plurality of second ribs 22 extending along the circumferential direction of the body 1. The intersecting first ribs 21 and second ribs 22 surround each clearance hole 11 to form a sealing ring 20. The sealing ring 20 is rectangular, and each corner 203 of the sealing ring 20 is provided with a rounded chamfer.

[0096] For example, in the first set of clearance holes 11, all clearance holes 11 are defined by the same two second ribs 22, defining two sides of the rectangular sealing ring 20. In the first set of clearance holes 11, adjacent clearance holes 11 are defined by different first ribs 21, defining the other two sides of the rectangular sealing ring 20.

[0097] The present invention also proposes a multi-way valve 1000.

[0098] According to an embodiment of the present invention, a multi-way valve 1000 includes: a housing 300, a valve core 400, and a seal 100. The housing 300 is provided with a plurality of flow holes. The valve core 400 is rotatably disposed within the housing and defines at least one switching flow channel. The valve core 400 is rotated to communicate with different flow holes. The seal 100 is the seal 100 of any of the above embodiments and is located between the housing 300 and the valve core 400. A plurality of clearance holes 11 are provided corresponding to the plurality of flow holes.

[0099] This allows the multi-way valve 1000 to have both reversing and proportional control functions, achieving integrated layout, reducing the number of drive components, reducing costs, saving installation space, and ensuring uninterrupted flow.

[0100] For example, refer to Figure 3 and Figure 4 As shown, an open assembly cavity is formed within the housing 300, and the valve core 400 is installed within the assembly cavity, rotating relative to the housing 300. A flow-through hole is provided on the side wall of the assembly cavity of the housing 300, positioned radially opposite to the valve core 400, and communicating with a flow channel for the flowing medium. The valve core 400 has multiple switching flow channels, allowing these channels to communicate with different flow-through holes, thus enabling the multi-way valve 1000 to function as a reversing valve, allowing the thermal management module with the multi-way valve 1000 to switch modes.

[0101] In addition, when the multi-way valve 1000 is working, the valve core 400 rotates. After the valve core 400 rotates through a certain angle, the switching channel and the flow passage begin to connect. As the valve core 400 continues to rotate, the area of ​​connection between the switching channel and the flow passage gradually increases, and the flow rate that can pass through also increases. Therefore, by controlling the rotation angle of the valve core 400, the switching of multiple working modes and flow control of the multi-way valve 1000 can be achieved.

[0102] Multiple clearance holes 11 on the seal 100 are provided in a one-to-one correspondence with multiple flow holes, and a sealing ring 20 is provided on the outer periphery of each clearance hole 11. The sealing ring 20 separates all clearance holes 11 from each other, which can prevent adjacent flow holes from being directly connected, thereby improving the reliability and stability of the multi-way valve 1000.

[0103] The multi-way valve 1000 according to an embodiment of the present invention can communicate with different flow orifices by setting a switching flow channel, so that the multi-way valve 1000 can have the functions of pitch switching and proportional adjustment, realizing integrated arrangement, reducing the number of driving components, which helps to reduce costs, save installation space, and achieve the purpose of continuous flow. Furthermore, by setting the aforementioned sealing element 100, direct communication between adjacent flow orifices is avoided, improving the reliability and stability of the multi-way valve 1000.

[0104] In some embodiments of the present invention, the inner wall of the housing 300 is provided with a receiving groove, and the seal 100 is disposed in the receiving groove. This arrangement reduces the size of the multi-way valve 1000 and improves the installation stability of the seal 100, thereby enhancing the reliability of the multi-way valve 1000.

[0105] In some embodiments of the present invention, there are at least three flow through holes, which are arranged at intervals. The switching channel includes a first switching channel 41 and a second switching channel 42. The first switching channel 41 is configured such that one of the flow through holes is switched to communicate with at least two flow through holes; the second switching channel 42 is configured such that different flow through holes are switched to communicate, and the second switching channel is also configured to change the number of connected flow through holes. It should be noted that by switching the flow channels for different flow through holes, the function of a multi-way valve / directional valve can be realized, enabling the thermal management module with it to switch modes.

[0106] For example, such as Figures 7-10As shown, the flow passages can include a first flow passage 311, a first flow passage 312, a third flow passage 313, a fourth flow passage 321, and a fifth flow passage 322. The first switching flow channel 41 can be used to allow flow between the first flow passage 312 and the first flow passage 311, or between the first flow passage 312 and the third flow passage 313. Because the first flow passage 312 always has a flow passage connected to it during the rotation of the valve core 400 for mode switching, the multi-way valve 100 can achieve the purpose of continuous flow, ensuring that there is always liquid flow in the pipe connected to it. It should be noted that during the rotation of the valve core, it can switch and connect with at least a number of flow passages through different flow passages. For example, the first switching flow channel 41 can correspond to four or more flow passages. It can switch the flow channel through the first flow passage 312, the first flow passage 311, and the third flow passage 313. Then, it can switch and connect with the fourth flow passage 321 and the fifth flow passage 322 through the third flow passage 313, thereby ensuring that the multi-way valve 100 can switch directions without interrupting the flow.

[0107] The second switching channel 42 can be used to connect the fourth flow through hole 321 to the third flow through hole 313, or it can be used to connect the fifth flow through hole 322 to the third flow through hole 313 respectively. The second switching channel 42 can also be used to connect two flow through holes, for example, it can also be used to connect the fourth flow through hole 321 and the fifth flow through hole 322 to the third flow through hole 313 respectively. Alternatively, the second switching channel can be used to connect three or more flow through holes, thereby changing the number of connected flow through holes.

[0108] It should also be noted that during the process of switching the second switching channel 42 from being connected to the fourth flow passage 321 to being connected to the fifth flow passage 322, as the valve core 400 rotates, the second switching channel 42 first connects to both the fourth flow passage 321 and the fifth flow passage 322 simultaneously, and then connects to the fifth flow passage 322 alone. During the simultaneous connection of the second switching channel 42 with both the fourth and fifth flow passages, the rotation of the valve core 400 can gradually decrease the area connected to the fourth flow passage 321, thereby gradually increasing the area connected to the fifth flow passage 322, and vice versa. This allows for proportional adjustment without interrupting flow during the proportional adjustment process.

[0109] The above embodiments are merely illustrative and do not limit the present invention. The present invention may also set six or even more flow holes, and the present invention does not limit this.

[0110] According to an embodiment of the present invention, the multi-way valve 1000 can switch between one flow passage and at least two flow passages by setting a first switching flow channel 41, and can switch between different flow passages by setting a second switching flow channel 42 and can change the number of connected flow passages, so that the multi-way valve 1000 can have both reversing function and proportional adjustment function, realize integrated arrangement, reduce the number of driving components, reduce costs, save installation space, and achieve the purpose of continuous flow.

[0111] In some embodiments of the present invention, the first switching channel 41 extends along the rotation direction of the valve core 400, and a plurality of flow holes are arranged sequentially in the extension direction of the first switching channel 41.

[0112] For example, refer to Figure 6 As shown, the first switching flow channel 41 is disposed on the outer peripheral wall of the valve core 400, and the first switching flow channel 41 extends along the rotation direction of the valve core 400. The housing 300 has a plurality of flow holes arranged sequentially along the extension direction of the first switching flow channel 41. The first switching flow channel 41 is used to connect two (or more) adjacent flow holes, and when the valve core 400 rotates, the first switching flow channel 41 can connect a flow hole with another adjacent flow hole.

[0113] In actual arrangements, such as Figure 7-10 As shown in the figure, the first flow passage 311, the second flow passage 312, and the third flow passage 313 can be arranged sequentially. When the first switching channel 41 connects the first flow passage 311 and the second flow passage 312, the valve core 400 can be rotated so that the first switching channel 41 can connect the second flow passage 312 and the third flow passage 313, and vice versa. This helps to improve the switching stability of the first switching channel 41 and improves the reliability of the multi-way valve 1000.

[0114] In some embodiments of the present invention, the housing 300 is provided with at least two rows of through holes. The at least two rows of through holes are arranged along the central axis of the valve core 400. Each row of through holes includes a plurality of flow through holes arranged along the rotation direction of the valve core 400. The at least two rows of through holes include a first row of through holes 31 and a second row of through holes 32. At least two flow through holes in the first row of through holes 31 are switched and connected through a first switching channel 41. The second switching channel 42 is configured to connect the flow through holes of the first row of through holes 31 and the second row of through holes 32.

[0115] For example, refer to Figures 4-7As shown, the housing 300 may be provided with at least two rows of through holes, which are arranged sequentially along the central axis of the valve core 400. Each row of through holes includes multiple flow holes, and the multiple flow holes in the same group can be arranged sequentially along the rotation direction of the valve core 400. The at least two rows of through holes include a first row of through holes 31 and a second row of through holes 32. At least two flow holes in the first row of through holes 31 are switched and connected through a first switching channel 41, and the second switching channel 42 is configured to connect the flow holes of the first row of through holes 31 and the second row of through holes 32.

[0116] For example, such as Figures 7-10 As shown, the first row of through holes 31 can be provided, including a first flow through hole 311, a second flow through hole 312 and a third flow through hole 313. The first flow through hole 311, the second flow through hole 312 and the third flow through hole 313 are arranged sequentially along the rotation direction of the valve core 400. The second row of through holes 32 includes a fourth flow through hole 321 and a fifth flow through hole 322. The fourth flow through hole 321 and the fifth flow through hole 322 are arranged sequentially along the rotation direction of the valve core 400.

[0117] The first switching channel 41 can connect the first through hole 311 and the second through hole 312, or connect the second through hole 312 and the third through hole 313. The second switching channel 42 can connect the fourth through hole 321 and the third through hole 313, or connect both the fourth through hole 321 and the fifth through hole 322 to the third through hole 313, or connect the fifth through hole 322 to the third through hole 313. The above embodiments are merely exemplary and do not limit the present invention.

[0118] Through the above settings, the valve core 400 can connect the flow holes of different flow hole groups, so that the arrangement of the flow holes can be flexible and varied, improving the practicality of the multi-way valve 1000 and reducing the layout difficulty of the multi-way valve 1000.

[0119] In some embodiments of the present invention, the second switching channel 42 is disposed within the valve core 400. The second switching channel 42 is provided with at least one first connecting hole 421 and a plurality of second connecting holes 422. The first connecting hole 421 is connected to or misaligned with the first row of through holes 31, and the second connecting hole 422 is connected to or misaligned with the second row of through holes 32.

[0120] For example, refer to Figures 4-7As shown, the second switching flow channel 42 is disposed within the valve core 400 and is separated from the first switching flow channel 41. A connecting hole is formed on the side wall of the valve core 400 corresponding to the second switching flow channel 42, and the connecting hole penetrates the side wall of the valve core 400 radially. The second switching flow channel 42 is provided with at least one first connecting hole 421 and multiple second connecting holes 422, which are arranged sequentially along the axial direction of the valve core 400. Specifically, the first connecting hole 421 is disposed opposite to the first row of through holes 31, and the first connecting hole 421 can communicate with or be offset from the through holes of the first row of through holes 31; the second connecting hole 422 is disposed opposite to the second row of through holes 32, and the second connecting hole 422 can communicate with or be offset from the through holes of the second row of through holes 32.

[0121] Understandably, by setting the first row of through holes 31 and the second row of through holes 32 to connect to the second switching channel 42 through different connecting holes, the direct connection between the first row of through holes 31 and the second row of through holes 32 can be avoided, which helps to improve the flow stability of the liquid in the second switching channel 42 and improves the reliability of the multi-way valve 1000. Furthermore, by setting the second switching channel 42 inside the valve core 400, the internal space of the valve core 400 can be rationally utilized, increasing the flexibility of the shape setting of the second switching channel 42.

[0122] In some embodiments of the present invention, the first connecting hole 421 is configured to communicate simultaneously with at least two flow holes, and the second switching flow channel 42 communicates with one of the flow holes through the second connecting hole 422. That is, during the rotation of the valve core 400, when the second connecting hole 422 is rotated to the point where it is blocked by the housing 300 and no fluid enters, the first connecting hole 421 can still have a flow hole communicating with it. This allows the first connecting hole 421 to switch communication with different flow holes on the housing 300 through the second switching flow channel 42 and the second connecting hole 422, and also changes the number of connected fluid holes. This simplifies the structure of the valve core 400.

[0123] In some specific embodiments of the present invention, such as Figure 6 As shown, the first connecting hole 421 extends at least twice the length of the second connecting hole 422 in the circumferential direction of the valve core 400.

[0124] In some embodiments of the present invention, for example, referring to Figure 6 As shown, in the rotation direction of the valve core 400, both sides of the first switching flow channel 41 are provided with first connecting holes 421. With the above arrangement, during the rotation of the valve core 400, the first row of through holes 31 always has a flow through hole connected to the first switching flow channel 41 and / or the first connecting hole 421, thereby achieving the purpose of continuous flow.

[0125] For example, such as Figures 7-10 As shown, a first row of through holes 31 can be provided, including a first flow through hole 311, a second flow through hole 312, and a third flow through hole 313. The first flow through hole 311, the second flow through hole 312, and the third flow through hole 313 are arranged sequentially along the circumference of the valve core 400. A first switching flow channel 41 is used to connect two adjacent ones of the first flow through hole 311, the second flow through hole 312, and the third flow through hole 313. In the rotation direction of the valve core 400, first connecting holes 421 can be provided on both sides of the first switching flow channel 41. When the first switching flow channel 41 connects the first flow through hole 311 and the second flow through hole 312, the first connecting hole 421 on the corresponding side can connect with the third flow through hole 313. When the first switching flow channel 41 connects the second flow through hole 312 and the third flow through hole 313, the first connecting hole 421 on the corresponding side can connect with the first flow through hole 311.

[0126] In some embodiments of the present invention, in the extending direction of the central axis of the valve core 400, the first connecting hole 421 and / or the first switching flow channel 41 are disposed opposite to at least one second connecting hole 422. For example, see reference Figure 6 As shown, in the extension direction of the central axis of the valve core 400, a first connecting hole 421 and at least one second connecting hole 422 can be arranged facing each other; alternatively, a first switching flow channel 41 and at least one second connecting hole 422 can be arranged facing each other; or alternatively, the first connecting hole 421 and the first switching flow channel 41 can each be arranged facing at least one second connecting hole 422. Through the above arrangements, a centralized arrangement is achieved, which helps to reduce the size of the multi-way valve 1000, thereby reducing the overall size of the multi-way valve 1000.

[0127] In some embodiments of the present invention, each first connecting hole 421 is positioned opposite a second connecting hole 422 located at the end of the corresponding first connecting hole 421 away from the first switching channel 41. For example, refer to Figure 6 As shown, in the extension direction of the central axis of the valve core 400, each first connecting hole 421 is directly opposite a second connecting hole 422, and the second connecting hole 422 opposite to the first connecting hole 421 is located at the end of the first connecting hole 421 away from the first switching flow channel 41. Thus, when the second connecting hole 422 opposite to the first connecting hole 421 is misaligned with the flow passage of the second row of through holes 32, the first connecting hole 421 can still communicate with the same flow passage of the first row of through holes 31. Therefore, communication between the first connecting hole 421 and different flow passages in the second row of through holes 32 can be achieved, which improves the practicality of the multi-way valve 1000.

[0128] Furthermore, referring to Figure 6As shown, in the direction extending from the central axis of the valve core 400, a second connecting hole 422 is provided at both ends of the first switching flow channel 41. For example, as... Figures 7-8 As shown, when the first switching channel 41 is connected to the first through hole 311 and the second through hole 312, the first through hole 421 on the right side can be connected to the third through hole 313. At this time, the valve core 400 can be rotated to the first switching position, so that the second through hole 422 corresponding to the first through hole 421 on the right side can be connected to the fifth through hole 322; or, the valve core 400 can be rotated to the second switching position, so that the second through hole 422 at the left end of the first switching channel 41 can be connected to the fourth through hole 321; or, the valve core 400 can be rotated between the first switching position and the second switching position, so that the second through hole 422 corresponding to the first through hole 421 on the right side can be connected to the fifth through hole 322, and so that the second through hole 422 at the left end of the first switching channel 41 can be connected to the fourth through hole 321.

[0129] With the above settings, the second switching channel 42 can be connected to two flow holes in the second row of through holes group 32 at the same time, which is conducive to realizing the proportional adjustment function. In addition, during the process of switching the flow holes in the second switching channel 42, there is always liquid flowing in the second switching channel 42, realizing uninterrupted flow and improving the stability of the multi-way valve 1000.

[0130] In some embodiments of the present invention, the rotation angle of the valve core 400 is ≤90°. Specifically, the rotation angle of the valve core 400 can be set to 85°; or the rotation angle of the valve core 400 can be set to 75°, or the rotation angle of the valve core 400 can be set to 65°, and the present invention does not limit this. Preferably, the rotation angle of the valve core 400 can be set to 80°.

[0131] It is understandable that by limiting the rotation angle of the valve core 400, the first switching channel 41 and the second switching channel 42 can be confined within the fan-shaped area of ​​the valve core 400, thereby reducing the area occupied by the first switching channel 41 and the second switching channel 42, improving the stability during the switching process, and enhancing the reliability of the multi-way valve 1000.

[0132] Furthermore, the arrangement of multiple connecting holes can be symmetrical with respect to the central axis of the valve core 400. For example, the second switching channel 42 includes two first connecting holes 421 and four second connecting holes 422. The two first connecting holes 421 are respectively located on both sides of the first switching channel 41 along the rotation direction of the valve core 400 and are symmetrically arranged with respect to the central axis of the valve core 400. The four second connecting holes 422 are located on the same side of the first switching channel 41 along the axial direction of the valve core 400. Two second connecting holes 422 are respectively opposite to both ends of the first switching channel 41 and are symmetrically arranged with respect to the central axis of the valve core 400. The other two second connecting holes 422 are respectively located at the end of the first connecting hole 421 away from the first switching channel 41 and are symmetrically arranged with respect to the central axis of the valve core 400. With the above arrangement, the switching process of the valve core 400 can remain stable during forward or reverse rotation, which helps to reduce the layout difficulty of the multi-way valve 1000 and improves the layout rationality of the multi-way valve 1000.

[0133] Furthermore, adjacent clearance holes can be abutted against the inner wall of the housing 300 by at least two sealing ribs, thereby improving the sealing effect. Even further, the cross-section of the sealing rib can be trapezoidal, and the cross-sectional area gradually increases in the direction towards the valve core 400, thereby improving the stability of the sealing rib. It should be noted that the cross-section of the sealing rib is perpendicular to the extension direction of the central axis of the valve core 400.

[0134] In a specific embodiment of the present invention, one end of the valve core 400 is connected to a driving component, thereby further reducing costs.

[0135] Specifically, refer to Figures 3-10 As shown, the housing 300 is provided with a first row of through holes 31 and a second row of through holes 32. The first row of through holes 31 includes a first through hole 311, a first through hole 312 and a third through hole 313. The first through hole 311, the first through hole 312 and the third through hole 313 are arranged sequentially along the rotation direction of the valve core 400. The second row of through holes 32 includes a fourth through hole 321 and a fifth through hole 322. The fourth through hole 321 and the fifth through hole 322 are arranged sequentially along the rotation direction of the valve core 400.

[0136] The valve core 400 is provided with a first switching flow channel 41 and a second switching flow channel 42. The second switching flow channel 42 includes two first connecting holes 421 and four second connecting holes 422. The two first connecting holes 421 are respectively located on both sides of the first switching flow channel 41 along the rotation direction of the valve core 400. The four second connecting holes 422 are located on the same side of the first switching flow channel 41 along the axial direction of the valve core 400. The two second connecting holes 422 are respectively opposite to the two ends of the first switching flow channel 41, and the other two second connecting holes 422 are respectively located at the end of the first connecting hole 421 away from the first switching flow channel 41.

[0137] When the valve core 400 rotates to Figure 7 When the valve core 400 is in the first switching position shown (at which time the rotation angle is 5°), the first switching flow channel 41 connects the first flow passage 311 and the first flow passage 312. The first connecting hole 421 located on the right can be connected to the third flow passage 313, and the second connecting hole 422 located opposite to the first connecting hole 421 on the right can be connected to the fifth flow passage 322.

[0138] When the valve core rotates to 400 Figure 8 When the valve core 400 is in the second switching position shown (at which time the rotation angle is 30°), the first switching channel 41 connects the first flow passage 311 and the first flow passage 312. The first connecting hole 421 located on the right side can connect with the third flow passage 313, and the second connecting hole 422 located at the left end of the first switching channel 41 can connect with the fourth flow passage 321.

[0139] When the valve core 400 rotates to between the first switching position and the second switching position (at this time, the rotation angle of the valve core 400 is 5°-30°), the first switching flow channel 41 connects the first flow passage 311 and the first flow passage 312. The first connecting hole 421 located on the right can connect with the third flow passage 313. The second connecting hole 422 located at the left end of the first switching flow channel 41 can connect with the fourth flow passage 321. The second connecting hole 422 directly opposite the first connecting hole 421 located on the right can connect with the fifth flow passage 322.

[0140] When the valve core rotates to 400 Figure 9 When the valve core 400 is in the third switching position shown (at which time the rotation angle is 55°), the second switching channel 42 can connect the first flow passage 312 and the third flow passage 313, the first connecting hole 421 located on the left can connect with the first flow passage 311, and the second connecting hole 422 located at the right end of the first switching channel 41 can connect with the fifth flow passage 322.

[0141] When the valve core rotates to 400 Figure 10When the valve core 400 is in the fourth switching position shown (at which time the rotation angle is 80°), the second switching flow channel 42 can connect the first flow passage 312 and the third flow passage 313, the first connecting hole 421 located on the left can connect with the first flow passage 311, and the second connecting hole 422 located directly opposite the first connecting hole 421 on the left can connect with the fourth flow passage 321.

[0142] When the valve core 400 rotates to between the third and fourth switching positions (at which time the rotation angle of the valve core 400 is 55°-80°), the second switching flow channel 42 can connect the first flow passage 312 and the third flow passage 313. The first connecting hole 421 located on the left can connect with the first flow passage 311. The second connecting hole 422, which is directly opposite to the first connecting hole 421 located on the left, connects with the fourth flow passage 321. The second connecting hole 422 located at the right end of the first switching flow channel 41 can connect with the fifth flow passage 322.

[0143] In some embodiments of the present invention, the multi-way valve further includes a drive element 500 and a cover plate 600. The cover plate 600 is detachably mounted on the housing 300 and is used to close the open end of the assembly cavity, thereby sealing the valve core 400 within the housing 300. The drive element 500 is also mounted on the housing 300, and the output end of the drive element 500 is connected to the valve core 400 so that the drive element 500 can drive the valve core 400 to rotate about its own axis.

[0144] In some specific embodiments of the present invention, the drive unit 500 includes: a motor, a reducer gear set, and a control circuit board.

[0145] The present invention also proposes a thermal management system.

[0146] According to an embodiment of the present invention, a thermal management system includes: a manifold and a multi-way valve 1000. The manifold is provided with multiple flow channels for the flow of a medium. The multi-way valve 1000 is any of the multi-way valves 1000 described above. The multi-way valve 1000 is disposed on the manifold. The multiple flow channels are respectively connected to multiple flow holes. The valve core 400 rotates to control the switching and connection of the multiple flow channels to control the thermal management system to switch modes.

[0147] It should be noted that the thermal management system can be applied to vehicles, household air conditioners, central air conditioners, and any equipment with a thermal management system. The application of the thermal management system does not limit the present invention.

[0148] According to the thermal management system of the present invention, by setting a first switching flow channel 41, one flow passage can be switched to be connected with at least two flow passages, and by setting a second switching flow channel 42, different flow passages can be switched to be connected and the number of connected flow passages can be changed, so that the multi-way valve 1000 can have both reversing function and proportional adjustment function, realizing integrated layout, reducing the number of driving components, which is conducive to reducing costs, saving installation space, and achieving the purpose of continuous flow, thereby improving the reliability of the thermal management system.

[0149] The present invention also proposes a vehicle.

[0150] A vehicle according to an embodiment of the present invention includes a thermal management system according to any of the above embodiments.

[0151] According to the vehicle of the present invention, by setting a first switching flow channel 41, one flow passage can be switched to be connected with at least two flow passages, and by setting a second switching flow channel 42, different flow passages can be switched to be connected and the number of connected flow passages can be changed, so that the multi-way valve 1000 can have both reversing function and proportional adjustment function, realize integrated layout, reduce the number of driving components, help reduce costs, save installation space, and achieve the purpose of continuous flow, improve the reliability of thermal management system, and improve the overall performance of vehicle.

[0152] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0153] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A sealing element, characterized in that, include: The body has multiple clearance holes that penetrate the body in the thickness direction. A sealing rib assembly includes multiple sealing rings, each corresponding to a plurality of clearance holes. The sealing rings surround the clearance holes. Each sealing ring includes a first sidewall extending along a first direction and a second sidewall extending along a second direction. The first sidewall and the second sidewall intersect to form a corner. At least one corner of the sealing ring has a rounded chamfer with a radius of R1. The length of the first sidewall along the first direction is L1, and the length of the second sidewall along the second direction is L2. The sealing element satisfies: 0.08≤R1 / L1≤0.2, and / or 0.08≤R1 / L2≤0.

2. The first direction intersects the second direction and the thickness direction, respectively.

2. The seal according to claim 1, characterized in that, R1 / L1 satisfies: 0.11≤R1 / L1≤0.16; and / or 0.11≤R1 / L2≤0.

16.

3. The seal according to claim 1, characterized in that, The sealing rib assembly includes a plurality of first ribs extending along the first direction and a plurality of second ribs extending along the second direction, the intersecting first ribs and second ribs defining the sealing ring.

4. The seal according to claim 3, characterized in that, Any adjacent clearance holes are defined by different first ribs and / or second ribs to define the sealing ring.

5. The seal according to claim 1, characterized in that, The body is an arc-shaped component, and the sealing ring is located on the side of the body away from the center.

6. The seal according to claim 5, characterized in that, The sidewall of the body facing the center of the circle is provided with a wear-resistant layer.

7. The seal according to any one of claims 1-6, characterized in that, The seal is a one-piece molded part.

8. A multi-way valve, characterized in that, include: The housing is provided with multiple flow holes; A valve core, rotatably disposed within the housing, defines at least one switching flow channel, and the valve core rotates such that the switching flow channel communicates with different flow through holes; A sealing element, wherein the sealing element is any one of claims 1-7, the sealing element is located between the housing and the valve core, and the plurality of clearance holes are provided in a one-to-one correspondence with the plurality of flow holes.

9. The multi-way valve according to claim 8, characterized in that, The number of flow holes is at least three; The switching channel includes a first switching channel and a second switching channel. The first switching channel is configured such that one of the flow through holes is switched to be connected to at least two of the flow through holes. The second switching channel is configured such that different flow through holes are switched to be connected. The second switching channel is also configured to change the number of connected flow through holes.

10. The multi-way valve according to claim 9, characterized in that, The first switching flow channel extends along the rotation direction of the valve core, and a plurality of flow holes are arranged sequentially in the extension direction of the first switching flow channel.

11. The multi-way valve according to claim 10, characterized in that, The housing is provided with at least two rows of through holes, which are arranged along the central axis of the valve core. Each row of through holes includes a plurality of flow through holes arranged along the rotation direction of the valve core. The at least two rows of through holes include a first row of through holes and a second row of through holes. At least two flow through holes in the first row of through holes are switched and connected through a first switching channel. The second switching channel is configured to connect the flow through holes of the first row of through holes and the second row of through holes.

12. The multi-way valve according to claim 11, characterized in that, The second switching flow channel is located inside the valve core. The second switching flow channel has at least one first connecting hole and multiple second connecting holes. The first connecting hole is connected to or offset from the first row of through holes. The second connecting hole is connected to or offset from the second row of through holes.

13. The multi-way valve according to claim 12, characterized in that, The first connecting hole is configured to communicate simultaneously with at least two of the flow through holes, and the second switching channel communicates with one of the flow through holes through the second connecting hole.

14. The multi-way valve according to claim 13, characterized in that, In the rotation direction of the valve core, the first connecting hole is provided on both sides of the first switching flow channel; In the direction of extension of the central axis of the valve core, the first connecting hole and / or the first switching flow channel are positioned opposite to at least one of the second connecting holes.

15. The multi-way valve according to claim 14, characterized in that, The second connecting hole, which is positioned opposite each of the first connecting holes, is located at the end of the corresponding first connecting hole that is away from the first switching channel.

16. The multi-way valve according to claim 15, characterized in that, In the direction of extension of the central axis of the valve core, a second connecting hole is provided at both ends of the first switching flow channel.

17. A thermal management system, characterized in that, include: A manifold, wherein the manifold is provided with multiple channels for the flow of a medium; A multi-way valve, wherein the multi-way valve is any one of claims 8 to 16, the multi-way valve is disposed on the manifold, and the plurality of flow channels are respectively connected to the plurality of flow through holes, and the valve core rotates to control the multiple flow channels to switch connections to control the thermal management system to switch modes.

18. A vehicle, characterized in that, Includes the thermal management system according to claim 17.

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