Spool for a multi-way valve, multi-way valve, thermal management system, and vehicle

Abstract

The application discloses a valve core of a multi-way valve, the multi-way valve, a thermal management system and a vehicle. The valve core comprises: the multi-way valve comprises a shell, the shell is formed with a plurality of flow-through holes, and the valve core is rotatably installed in the shell. The valve core comprises: a valve body, a switching flow channel is arranged in the valve body, the switching flow channel is provided with a plurality of communication holes located on the outer peripheral wall of the valve body, and the switching flow channel is switched to communicate with at least two flow-through holes through the communication holes; and a sealing rib is arranged on the outer peripheral wall of the valve body and protrudes from the outer peripheral wall of the valve body, the sealing rib is configured to block the medium flow between two adjacent communication holes, the outer diameter of the valve body is D on a cross section of the valve body, the circumferential width of a connecting part of the sealing rib connected with the valve body is L, and the valve core satisfies the following relationship: L / D >= 0.08, and the cross section is perpendicular to the rotation axis of the valve body. Therefore, the medium flow between two adjacent communication holes can be blocked by the sealing rib, and the probability of medium leakage is reduced.

Description

Technical Field

[0001] This invention relates to the field of fluid machinery, and in particular to a valve core for a multi-way valve, a multi-way valve, a thermal management system, and a vehicle. Background Technology

[0002] Related technologies indicate that a multi-way valve includes a valve core and a valve housing. The valve core is rotatably mounted inside the valve housing. A seal is provided between the valve housing and the valve core. The seal is used to seal the gap between the valve core and the valve housing. There is relative movement between the seal and the valve core, which may lead to poor sealing effect between the seal and the valve core, and there is room for improvement. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a valve core for a multi-way valve, which can use sealing ribs to block the flow of medium between two adjacent connecting holes, thereby reducing the probability of medium leakage between two adjacent connecting holes.

[0004] According to an embodiment of the present invention, the valve core of a multi-way valve includes a housing having a plurality of flow holes, the valve core being rotatably mounted within the housing. The valve core includes: a valve body having a switching flow channel within the valve body, the switching flow channel having a plurality of connecting holes located on the outer peripheral wall of the valve body, the switching flow channel being switched to communicate with at least two of the flow holes through the connecting holes; and a sealing rib having a sealing rib located on and protruding from the outer peripheral wall of the valve body, the sealing rib being configured to block the flow of medium between two adjacent connecting holes. In the cross-section of the valve body, the outer diameter of the valve body is D, the circumferential width of the connecting portion of the sealing rib connected to the valve body is L, and the valve core satisfies the following relationship: L / D ≥ 0.08, the cross-section being perpendicular to the rotation axis of the valve body.

[0005] According to an embodiment of the present invention, the valve core of the multi-way valve can block the flow of medium between two adjacent connecting holes by providing a sealing rib on the valve body. Furthermore, by setting the ratio between the outer diameter of the valve body and the circumferential width of the connection part of the sealing rib connected to the valve body within a set range, sufficient surface pressure can be maintained between the sealing rib and the inner circumferential wall of the sealing element, thereby improving the sealing effect of the sealing rib, reducing the probability of medium leakage between two adjacent connecting holes, and improving the reliability of the valve core.

[0006] According to some embodiments of the present invention, the valve core of a multi-way valve satisfies the following relationship: 0.08≤L / D≤0.1.

[0007] According to some embodiments of the present invention, the valve core of a multi-way valve, the sealing rib and the valve body are integrally machined parts.

[0008] In the valve core of a multi-way valve according to some embodiments of the present invention, the opposite sidewalls of the sealing ribs extend obliquely toward a direction away from the center of the valve body in the cross-section.

[0009] According to some embodiments of the present invention, in the valve core of a multi-way valve, the angle between each sidewall of the opposite sidewall of the sealing rib and the central axis of the valve body in the cross section is a first draft angle α1, which satisfies: 10°≤α1≤30°.

[0010] According to some embodiments of the present invention, the valve core of a multi-way valve has multiple switching channels, and each switching channel has multiple connecting holes.

[0011] According to some embodiments of the present invention, the valve core of a multi-way valve includes a plurality of switching channels, including a first switching channel and a second switching channel. The connecting hole corresponding to the first switching channel is a first connecting hole. The plurality of connecting holes corresponding to the second switching channel include a plurality of second connecting holes. The first connecting hole is provided on both sides in the length direction. The length of the first connecting hole extending circumferentially along the valve body is greater than that of the second connecting hole. The sealing rib includes a first sub-rib, which is arranged around the first connecting hole.

[0012] According to some embodiments of the present invention, the valve core of the multi-way valve further includes a plurality of third connecting holes corresponding to the second switching flow channel. The plurality of third connecting holes are disposed on one side of the first connecting hole and the second connecting hole along the axial direction of the valve body, and the plurality of third connecting holes are spaced apart along the circumferential direction of the valve body. The length of the first connecting hole is greater than the length of the third connecting hole. The sealing rib includes a second sub-rib, which is disposed between two adjacent third connecting holes.

[0013] According to some embodiments of the present invention, the valve core of a multi-way valve has multiple third connecting holes configured to have the same size.

[0014] According to some embodiments of the present invention, the valve core of a multi-way valve has a first sub-rib and a second sub-rib arranged axially spaced apart along the valve body.

[0015] According to some embodiments of the present invention, the valve core of a multi-way valve has the first sub-rib and the middle position of the plurality of third connecting holes being directly opposite each other along the arrangement direction.

[0016] According to some embodiments of the present invention, the valve core of a multi-way valve has a second sub-rib with a weight-reducing groove.

[0017] According to some embodiments of the present invention, the valve core of a multi-way valve has a second sub-rib provided with a plurality of spaced-apart weight-reducing grooves.

[0018] According to some embodiments of the present invention, the valve core of a multi-way valve has two weight-reducing grooves arranged circumferentially along the valve body.

[0019] The present invention also proposes a multi-way valve.

[0020] A multi-way valve according to an embodiment of the present invention includes: a housing having a plurality of flow holes; and a valve core, wherein the valve core is the valve core described in any of the above embodiments, and the valve core is rotatably mounted within the housing.

[0021] According to the embodiments of the present invention, the multi-way valve can block the flow of medium between two adjacent connecting holes by providing a sealing rib on the valve body. Furthermore, by setting the ratio between the outer diameter of the valve body and the circumferential width of the connection part of the sealing rib connected to the valve body within a set range, sufficient surface pressure can be maintained between the sealing rib and the inner circumferential wall of the sealing element, thereby improving the sealing effect of the sealing rib, reducing the probability of medium leakage between two adjacent connecting holes, improving the reliability of the valve core, and enhancing the overall performance of the multi-way valve.

[0022] According to some embodiments of the present invention, in a multi-way valve, one end of the valve core is provided with a pivot shaft supported on the housing, and the pivot shaft is fitted with a mating bearing.

[0023] According to some embodiments of the present invention, the multi-way valve further includes a sealing element located between the inner wall of the housing and the valve core. The sealing element is provided with a plurality of clearance holes, which are arranged in a one-to-one correspondence with the plurality of flow holes.

[0024] This invention also proposes a thermal management system.

[0025] A thermal management system according to an embodiment of the present invention includes: a multi-way valve according to any of the above embodiments.

[0026] According to the thermal management system of the present invention, by providing a sealing rib on the valve body, the flow of medium between two adjacent connecting holes can be blocked. Furthermore, by setting the ratio between the outer diameter of the valve body and the circumferential width of the connection portion of the sealing rib connected to the valve body within a set range, sufficient surface pressure can be maintained between the sealing rib and the inner circumferential wall of the sealing element, thereby improving the sealing effect of the sealing rib, reducing the probability of medium leakage between two adjacent connecting holes, improving the reliability of the valve core, enhancing the overall performance of the multi-way valve, and improving the reliability of the thermal management system.

[0027] The present invention also proposes a vehicle.

[0028] A vehicle according to an embodiment of the present invention includes: a thermal management system according to any of the above embodiments.

[0029] According to the vehicle of the present invention, by providing a sealing rib on the valve body, the flow of medium between two adjacent connecting holes can be blocked. Furthermore, by setting the ratio between the outer diameter of the valve body and the circumferential width of the connection portion of the sealing rib connected to the valve body within a set range, sufficient surface pressure can be maintained between the sealing rib and the inner circumferential wall of the sealing element, thereby improving the sealing effect of the sealing rib, reducing the probability of medium leakage between two adjacent connecting holes, improving the reliability of the valve core, enhancing the overall performance of the multi-way valve, improving the reliability of the thermal management system, and enhancing the competitiveness of the vehicle.

[0030] 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

[0031] 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:

[0032] Figure 1 This is an exploded view of a multi-way valve according to an embodiment of the present invention;

[0033] Figure 2 This is a front view of the valve core according to an embodiment of the present invention;

[0034] Figure 3 This is a cross-sectional view of the valve core according to an embodiment of the present invention;

[0035] Figure 4 This is an isometric view of the valve core according to an embodiment of the present invention;

[0036] Figure 5 This is a simulation diagram showing the relationship between the ratio of the circumferential width of the sealing rib connection to the outer diameter of the valve body and the surface pressure and frictional torque.

[0037] Figure label:

[0038] Multi-way valve 100,

[0039] Housing 1, first row of through holes 11, first through hole 111, second through hole 112, third through hole 113, second row of through holes 12, fourth through hole 121, fifth through hole 122.

[0040] Valve core 2, valve body 21, first switching flow channel 211, first connecting hole 212, second switching flow channel 213, second connecting hole 214, third connecting hole 215.

[0041] Sealing rib 22, first sub-rib 221, second sub-rib 222, weight reduction groove 223, partition 224, pivot shaft 23, first limiting protrusion 24, sealing element 3, clearance hole 31. Detailed Implementation

[0042] 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.

[0043] 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.

[0044] 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.

[0045] Hereinafter, with reference to the accompanying drawings, the valve core 2 of a multi-way valve according to an embodiment of the present invention will be described.

[0046] It should be noted that, as Figure 1As shown, the multi-way valve 100 includes a housing 1 and a valve core 2. An open assembly cavity is formed within the housing 1. The valve core 2 is rotatably installed into the assembly cavity and sealed by a cover plate. The valve core 2 is rotatable relative to the housing 1. A driving member is provided on the housing 1, and the output end of the driving member is connected to the valve core 2, allowing the driving member to drive the valve core 2 to rotate around its own axis. Multiple flow holes are formed on the housing 1, and these flow holes are arranged radially opposite to the valve core 2, communicating with the flow path of the circulating medium. A sealing member 3 is also installed between the inner wall of the housing 1 and the outer peripheral wall of the valve core 2. The sealing member 3 is made of an elastic material such as rubber, and it has multiple clearance holes 31, each corresponding to and communicating with one of the multiple flow holes.

[0047] like Figures 1-5 As shown, the valve core 2 of the multi-way valve according to an embodiment of the present invention includes: a valve body 21 and a sealing rib 22. The valve body 21 is provided with a switching flow channel, which is provided with a plurality of connecting holes located on the outer peripheral wall of the valve body 21. The switching flow channel is connected to at least two flow through holes through the connecting holes. The sealing rib 22 is provided on the outer peripheral wall of the valve body 21 and protrudes from the outer peripheral wall of the valve body 21. The sealing rib 22 is configured to block the flow of medium between two adjacent connecting holes. On the cross-section of the valve body 21, the outer diameter of the valve body 21 is D, and the circumferential width of the connection part of the sealing rib 22 connected to the valve body 21 is L. The valve core 2 satisfies the following relationship: L / D≥0.08, and the cross-section is perpendicular to the rotation axis of the valve body 21.

[0048] This improves the sealing effect of the sealing rib 22, reduces the probability of medium leakage between two adjacent connecting holes, and improves the reliability of the valve core 2.

[0049] For example, refer to Figures 1-2 As shown, the valve core 2 of the multi-way valve includes a valve body 21, which is installed in the assembly cavity of the housing 1. The valve body 21 has a switching flow channel with multiple connecting holes on its outer peripheral wall. These connecting holes are circumferentially opposite to and connected to the clearance opening, allowing the switching flow channel to communicate with the flow through holes. The switching flow channel is configured to switch between communication with at least two flow through holes via multiple connecting holes. For example, the flow through holes may include a first flow through hole 111, a second flow through hole 112, and a third flow through hole 113. The switching flow channel of the valve core 2 can flow through two connecting holes to the second flow through hole 112 and the first flow through hole 111, respectively. Alternatively, the valve body 21 can be rotated so that the switching flow channel of the valve core 2 can flow through two connecting holes to the second flow through hole 112 and the third flow through hole 113, thereby realizing the switching function of the multi-way valve 100.

[0050] The valve core 2 also includes a sealing rib 22, which is disposed on the outer peripheral wall of the valve body 21. The sealing rib 22 protrudes from the outer peripheral wall of the valve body 21 and slidably abuts against the inner peripheral wall of the sealing element 3. The sealing rib 22 is configured to block the flow of medium between two adjacent connecting holes, so as to prevent the two adjacent connecting holes from communicating through the gap between the sealing element 3 and the valve core 2, thereby improving the reliability of the valve core 2. In actual arrangement, the sealing rib 22 can be arranged around the connecting hole; or, the sealing rib 22 can be located between two adjacent connecting holes. The present invention does not limit this.

[0051] Among them, such as Figure 3 As shown, a cross-section can be formed perpendicular to the rotation axis of the valve body 21. On the cross-section of the valve body 21, the outer diameter of the valve body 21 is set as D, and the circumferential width of the connection portion of the sealing rib 22 connected to the valve body 21 is set as L. The valve core 2 satisfies the following relationship: L / D ≥ 0.08. According to... Figure 5 As shown in the simulation diagram, when the ratio between the outer diameter D of the valve body 21 and the circumferential width L of the connection between the sealing rib 22 and the sealing element 3 is greater than or equal to 0.08, the surface pressure between the sealing rib 22 and the inner circumferential wall of the sealing element 3 is greater than 1 MPa. This indicates a good sealing effect between the sealing rib 22 and the sealing element 3, which can reduce the probability of media leakage. Therefore, this is beneficial to the reliability of the valve core 2.

[0052] According to an embodiment of the present invention, the valve core 2 of the multi-way valve can block the flow of medium between two adjacent connecting holes by providing a sealing rib 22 on the valve body 21. Furthermore, by setting the ratio between the outer diameter of the valve body 21 and the circumferential width of the connection portion of the sealing rib 22 connected to the valve body 21 within a set range, sufficient surface pressure can be maintained between the sealing rib 22 and the inner circumferential wall of the sealing element 3, thereby improving the sealing effect of the sealing rib 22, reducing the probability of medium leakage between two adjacent connecting holes, and improving the reliability of the valve core 2.

[0053] Furthermore, the valve core 2 can be configured to satisfy the following relationship: 0.08 ≤ L / D ≤ ​​0.1. For example, the ratio between the outer diameter D of the valve body 21 and the circumferential width L of the connection portion of the sealing rib 22 can be taken as 0.085; or, the ratio between the outer diameter D of the valve body 21 and the circumferential width L of the connection portion of the sealing rib 22 can be taken as 0.09; or, the ratio between the outer diameter D of the valve body 21 and the circumferential width L of the connection portion of the sealing rib 22 can be taken as 0.095. This application does not impose any restrictions on this.

[0054] It is understandable that by limiting the ratio between the outer diameter D of the valve body 21 and the circumferential width L of the connection of the sealing rib 22 within the above range, the frictional torque between the sealing element 3 and the sealing rib 22 can be reduced. For example, the maximum torque of the driving element is usually set to 2 NM, while the frictional torque is not greater than 1 NM. This allows for a certain margin in the torque of the driving element, thereby preventing the valve body 21 from jamming with the housing 1.

[0055] In some embodiments of the present invention, such as Figure 2 As shown, the sealing rib 22 and the valve body 21 can be integrally machined. This reduces the machining difficulty and cost of the valve core 2, and improves the connection stability between the sealing rib 22 and the valve body 21, thereby enhancing the reliability of the valve core 2.

[0056] In some embodiments of the invention, in cross-section, the opposing sidewalls of the sealing rib 22 extend obliquely in a direction away from the center of the valve body 21. For example, in Figure 3 In the cross-section shown, the opposing sidewalls of the sealing rib 22 can be arranged to extend inclined towards each other in a direction away from the center of the valve body 21, so that the sealing rib 22 is constructed into a trapezoidal shape. This can improve the structural strength of the sealing rib 22, facilitate the demolding of the sealing rib 22, and reduce the processing difficulty of the valve core 2. As a result, the reliability of the valve core 2 is improved.

[0057] In some embodiments of the present invention, in cross-section, the angle between each sidewall of the opposite sidewall of the sealing rib 22 and the central axis of the valve body 21 is a first draft angle α1, which satisfies: 10°≤α1≤30°.

[0058] For example, refer to Figure 4 As shown, in the cross-section, one of the sidewalls of the sealing rib 22 can be configured to form an angle with the central axis of the valve body 21. This angle is the first draft angle α1, satisfying: 10°≤α1≤30°. Specifically, the first draft angle α1 can be set to 15°; or, the first draft angle α1 can be set to 20°; or, the first draft angle α1 can be set to 25°. This application does not limit this. Through the above configuration, the manufacturing process of the sealing rib 22 can be easily implemented, which helps to reduce the defect rate of the valve core 2, and can also make the sealing effect of the sealing rib 22 optimal, the friction torque moderate, and the overall performance of the valve core 2 best.

[0059] In some embodiments of the present invention, such as Figure 4As shown, multiple switching channels can be configured, each with multiple connecting holes. Each switching channel can be switched to at least two flow holes via these connecting holes. These multiple switching channels can be switched to different flow holes or to the same flow holes. For example, the flow holes can include a first flow hole 111, a second flow hole 112, and a third flow hole 113. One switching channel of the valve core 2 can be switched to connect between the first flow hole 111 and the third flow hole 113, and another switching channel of the valve core 2 can also be switched to connect between the first flow hole 111 and the third flow hole 113. This configuration improves the practicality of the valve core 2.

[0060] In some embodiments of the present invention, the multiple switching channels include a first switching channel 211 and a second switching channel 213. The connecting hole corresponding to the first switching channel 211 is a first connecting hole 212. The multiple connecting holes corresponding to the second switching channel 213 include multiple second connecting holes 214. The first connecting hole 212 is provided on both sides of its length direction. The length of the first connecting hole 212 extending circumferentially along the valve body 21 is greater than that of the second connecting hole 214. The sealing rib 22 includes a first sub-rib 221, which is arranged around the first connecting hole 212.

[0061] For example, refer to Figure 2 and Figure 4 As shown, the multiple switching channels include a first switching channel 211 and a second switching channel 213. The first switching channel 211 and the second switching channel 213 are arranged at intervals. The connecting hole corresponding to the first switching channel 211 is a first connecting hole 212. The multiple connecting holes corresponding to the second switching channel 213 include multiple second connecting holes 214. The first connecting hole 212 and the second connecting hole 214 are located at the same height position along the axial direction of the valve core 2. The first connecting hole 212 extends circumferentially along the valve body 21. The second connecting hole 214 is provided on both sides of the length direction of the first connecting hole 212.

[0062] like Figure 1 As shown, the housing 1 is provided with a first row of through holes 11. The first row of through holes 11 has a plurality of flow through holes arranged at intervals along the circumference of the housing 1. The first connecting hole 212 is configured to communicate with two flow through holes of the first row of through holes 11 at the same time, so that the two flow through holes can be connected through the first switching flow channel 211. The length of the first connecting hole 212 extending along the circumference of the valve body 21 is greater than the length of the second connecting hole 214 extending along the circumference of the valve body 21. The second connecting hole 214 can communicate with one of the flow through holes of the first row of through holes 11, so that the flow through hole can be connected with the second switching flow channel 213.

[0063] For example, such as Figure 1 and Figure 4 As shown, the first row of through holes 11 can be configured to include a first through hole 111, a second through hole 112, and a third through hole 113, which are arranged sequentially along the rotation direction of the valve core 2. When the first connecting hole 212 is connected to the first through hole 111 and the second through hole 112, the corresponding second connecting hole 214 can be connected to the third through hole 113. The valve core 2 can be rotated to connect the first connecting hole 212 with the second through hole 112 and the third through hole 113, and to allow the second connecting hole 214 on the other side to be connected to the first through hole 111. The above embodiments are merely exemplary and do not limit the present invention.

[0064] Among them, such as Figure 2 As shown, the sealing rib 22 can include a first sub-rib 221. The first sub-rib 221 surrounds the first connecting hole 212 and protrudes from the outer peripheral wall of the valve body 21. The first sub-rib 221 abuts against the inner peripheral wall of the sealing element 3. The first sub-rib 221 can block the flow of medium between the first connecting hole 212 and the second connecting hole 214, and can also block the flow of medium between the two second connecting holes 214. It can be understood that by setting a single first sub-rib 221, sealing between multiple connecting holes can be achieved, reducing the processing difficulty and cost, and improving the practicality of the valve core 2.

[0065] In some embodiments of the present invention, the plurality of connecting holes corresponding to the second switching flow channel 213 further include a plurality of third connecting holes 215. The plurality of third connecting holes 215 are disposed on one side of the first connecting hole 212 and the second connecting hole 214 along the axial direction of the valve body 21, and the plurality of third connecting holes 215 are spaced apart along the circumferential direction of the valve body 21. The length of the first connecting hole 212 is greater than the length of the third connecting hole 215. The sealing rib 22 includes a second sub-rib 222, and the second sub-rib 222 is disposed between two adjacent third connecting holes 215.

[0066] For example, refer to Figure 2 and Figure 4As shown, the multiple connecting holes corresponding to the second switching flow channel 213 also include multiple third connecting holes 215. The multiple third connecting holes 215 are located on the same side of the first connecting hole 212 and the second connecting hole 214 along the axial direction of the valve body 21, and the multiple third connecting holes 215 are spaced apart along the circumference of the valve body 21. The housing 1 is correspondingly provided with a second row of through holes 12. The second row of through holes 12 has multiple flow through holes arranged spaced apart along the circumference of the housing 1. The length of the third connecting hole 215 extending along the circumference of the valve body 21 is less than the length of the first connecting hole 212 extending along the circumference of the valve body 21. The third connecting hole 215 is configured to communicate with one of the flow through holes in the second row of through holes 12, so that the flow through hole can communicate with the second switching flow channel 213, thereby allowing the flow through holes in the first row of through holes 11 to communicate with the flow through holes in the second row of through holes 12 through the second switching flow channel 213.

[0067] For example, such as Figure 1 and Figure 4 As shown, the housing 1 can be provided with a first row of through holes 11 and a second row of through holes 12. The first row of through holes 11 includes a first through hole 111, a second through hole 112 and a third through hole 113. The first through hole 111, the second through hole 112 and the third through hole 113 are arranged sequentially along the circumference of the valve core 2. The second row of through holes 12 includes a fourth through hole 121 and a fifth through hole 122. The fourth through hole 121 and the fifth through hole 122 are arranged sequentially along the circumference of the valve core 2. When the first connecting hole 212 is connected to the first flow through hole 111 and the second flow through hole 112 respectively, the second connecting hole 214 is connected to the third flow through hole 113. Alternatively, one of the plurality of third connecting holes 215 can be connected to the fourth flow through hole 121, or two of the plurality of third connecting holes 215 can be connected to the fourth flow through hole 121 and the fifth flow through hole 122 respectively, or one of the plurality of third connecting holes 215 can be connected to the fifth flow through hole 122. The above embodiments are merely illustrative and do not limit the present invention.

[0068] The sealing rib 22 may include a second sub-rib 222. The second sub-rib 222 is positioned between two adjacent third connecting holes 215 and abuts against the inner circumferential wall of the sealing element 3. The length of the second sub-rib 222 along the axial direction of the valve core 2 is greater than the width of the third connecting hole 215, so that the second sub-rib 222 can block the flow of media between two adjacent third connecting holes 215. This improves the reliability of the valve core 2.

[0069] In some embodiments of the present invention, such as Figure 4As shown, multiple third connecting holes 215 can be constructed to have the same dimensions. Specifically, the multiple third connecting holes 215 can be configured to have equal dimensions along the circumference of the valve core 2, and the multiple third connecting holes 215 can be configured to have equal dimensions along the axial direction of the valve core 2. This allows the same flow passage hole to be stably switched with different third connecting holes 215. This improves the reliability of the valve core 2.

[0070] In some embodiments of the present invention, such as Figure 2 As shown, the first sub-rib 221 and the second sub-rib 222 can be arranged spaced apart along the axial direction of the valve body 21. This arrangement reduces the machining difficulty of the valve core 2, improves its yield, and lowers costs.

[0071] In some embodiments of the present invention, the first sub-rib 221 and the plurality of third connecting holes 215 are positioned opposite each other at the center of the arrangement direction. For example, see reference Figure 2 As shown, multiple third connecting holes 215 can be spaced apart circumferentially along the valve body 21, with a first connecting hole 212 located on one side of the multiple third connecting holes 215 along the axial direction of the valve body 21. The first connecting hole 212 and the multiple third connecting holes 215 can be positioned directly opposite each other at their midpoints along the arrangement direction, so that the first sub-rib 221 and the multiple third connecting holes 215 are directly opposite each other along the arrangement direction, allowing the first sub-rib 221 and the multiple second sub-ribs 222 on the valve body 21 to be symmetrically distributed. This improves the layout rationality of the valve core 2 and enhances its practicality.

[0072] In some embodiments of the present invention, such as Figure 2 As shown, a weight-reducing groove 223 can be provided at the middle position of the second sub-rib 222, and the cross-section of the second sub-rib 222 is the same at any position. This reduces the weight of the second sub-rib 222 without affecting the sealing performance, thereby reducing the overall weight of the valve core 2. Thus, a lightweight design of the valve core 2 is achieved.

[0073] Furthermore, such as Figure 2 As shown, multiple weight-reducing grooves 223 can be provided on the second sub-rib 222. The multiple weight-reducing grooves 223 can be arranged at intervals along the circumference of the valve core 2 or at intervals along the axial direction of the valve core 2, and this application does not impose any limitation on this. As a result, the weight of the second sub-rib 222 can be further reduced, realizing the lightweight design of the valve core 2, and the size of a single weight-reducing groove 223 can be reduced, which is beneficial to improving the structural strength of the second sub-rib 222.

[0074] In some embodiments of the present invention, such as Figures 1-2As shown, the housing 1 is provided with a second row of through holes 12, which includes a fourth through hole 121 and a fifth through hole 122. The fourth through hole 121 and the fifth through hole 122 are arranged sequentially along the circumference of the valve core 2. The valve core 2 is provided with two sets of third connecting holes 215 spaced apart along the circumference. Each set has multiple third connecting holes 215. The fourth through hole 121 can switch to connect with multiple third connecting holes 215 in one set, and the fifth through hole 122 can switch to connect with multiple third connecting holes 215 in the other set. The two sets of third connecting holes 215 are separated by a second sub-rib 222. The second sub-rib 222 located between the two sets of third connecting holes 215 is provided with two weight-reducing grooves 223. The two weight-reducing grooves 223 are spaced apart along the circumference of the valve core 2, and a partition 224 is formed between the two weight-reducing grooves 223.

[0075] It should be noted that two first limiting protrusions 24 can be provided at one end of the valve core 2, and the two first limiting protrusions 24 are arranged circumferentially spaced apart along the valve core 2. A second limiting protrusion can be provided correspondingly on the inner side of the housing 1. When the valve core 2 rotates to its limit position in either the forward or reverse direction, the second limiting protrusion can engage with the first limiting protrusions 24 to achieve a limiting engagement between the valve core 2 and the housing 1. When the valve core 2 rotates to its limit position, the partition 224 can be precisely supported at the side position of the clearance hole 31 on the other side, and the second sub-rib 222 can be directly opposite the clearance hole 31 to close the clearance hole 31. This improves the sealing effect of the second sub-rib 222, enhances the reliability of the second sub-rib 222, and thus improves the reliability of the valve core 2.

[0076] The present invention also proposes a multi-way valve 100.

[0077] like Figure 1 As shown, the multi-way valve 100 according to an embodiment of the present invention includes: a housing 1 and a valve core 2, wherein the housing 1 has a plurality of flow holes; the valve core 2 is the valve core 2 of any of the above embodiments, and the valve core 2 is rotatably mounted in the housing 1.

[0078] According to an embodiment of the present invention, the multi-way valve 100 can block the flow of medium between two adjacent connecting holes by providing a sealing rib 22 on the valve body 21. Furthermore, by setting the ratio between the outer diameter of the valve body 21 and the circumferential width of the connection portion of the sealing rib 22 connected to the valve body 21 within a set range, sufficient surface pressure can be maintained between the sealing rib 22 and the inner peripheral wall of the sealing element 3, thereby improving the sealing effect of the sealing rib 22, reducing the probability of medium leakage between two adjacent connecting holes, improving the reliability of the valve core 2, and enhancing the overall performance of the multi-way valve 100.

[0079] In some embodiments of the present invention, one end of the valve core 2 is provided with a pivot shaft 23 supported on the housing 1, and the pivot shaft 23 is fitted with a mating bearing. For example, see... Figures 1-2 As shown, a pivot shaft 23 can be provided at one end of the valve core 2 along the axis. The pivot shaft 23 extends along the axial direction of the valve core 2. The pivot shaft 23 is fitted with a matching bearing, and a pivot cavity can be formed on the housing 1 corresponding to the pivot shaft 23. The pivot shaft 23 can extend into the pivot cavity of the housing 1 and is rotatably fitted with the housing 1 through the matching bearing. The output end of the drive component is poweredly connected to the pivot shaft 23, so that the drive component can drive the pivot shaft 23 to drive the valve core 2 to rotate around its own axis.

[0080] The above settings can improve the installation stability between the valve core 2 and the housing 1, and also improve the rotational stability of the valve core 2, thereby increasing the reliability of the multi-way valve 100 when switching modes.

[0081] In some embodiments of the present invention, the multi-way valve 100 of the present invention further includes a sealing element 3, which is located between the inner wall of the housing 1 and the valve core 2. The sealing element 3 is provided with a plurality of clearance holes 31, which are respectively arranged in a plurality of flow through holes.

[0082] For example, such as Figure 1 As shown, the multi-way valve 100 also includes a sealing element 3, which is installed between the inner wall of the housing 1 and the outer peripheral wall of the valve core 2. The sealing element 3 has multiple clearance holes 31, which are corresponding to multiple flow holes. Specifically, the material of the sealing element 3 can be selected as an elastic material such as rubber. Through the above arrangement, the sealing element can separate the gap between the valve core 2 and the housing 1, so as to prevent adjacent flow holes from being directly connected, thereby improving the reliability and stability of the multi-way valve 100.

[0083] Furthermore, an arc-shaped receiving groove can be provided on the inner wall of the housing 1, which is matched with the seal 3 so that the seal 3 can be installed in the receiving groove. Through the above arrangement, the size of the multi-way valve 100 can be reduced, and the installation stability of the seal 3 can be improved, thereby improving the reliability of the multi-way valve 100.

[0084] This invention also proposes a thermal management system.

[0085] A thermal management system according to an embodiment of the present invention includes a multi-way valve 100 according to any of the above embodiments.

[0086] According to the thermal management system of the present invention, by providing a sealing rib 22 on the valve body 21, the flow of medium between two adjacent connecting holes can be blocked. Furthermore, by setting the ratio between the outer diameter of the valve body 21 and the circumferential width of the connection portion of the sealing rib 22 connected to the valve body 21 within a set range, sufficient surface pressure can be maintained between the sealing rib 22 and the inner circumferential wall of the sealing element 3, thereby improving the sealing effect of the sealing rib 22, reducing the probability of medium leakage between two adjacent connecting holes, improving the reliability of the valve core 2, enhancing the overall performance of the multi-way valve 100, and improving the reliability of the thermal management system.

[0087] The present invention also proposes a vehicle.

[0088] A vehicle according to an embodiment of the present invention includes: a thermal management system according to any of the above embodiments.

[0089] According to the vehicle of the present invention, by providing a sealing rib 22 on the valve body 21, the flow of medium between two adjacent connecting holes can be blocked. Furthermore, by setting the ratio between the outer diameter of the valve body 21 and the circumferential width of the connection portion of the sealing rib 22 connected to the valve body 21 within a set range, sufficient surface pressure can be maintained between the sealing rib 22 and the inner peripheral wall of the sealing element 3. This improves the sealing effect of the sealing rib 22, reduces the probability of medium leakage between two adjacent connecting holes, improves the reliability of the valve core 2, enhances the overall performance of the multi-way valve 100, improves the reliability of the thermal management system, and enhances the competitiveness of the vehicle.

[0090] 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.

[0091] 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 valve core for a multi-way valve, characterized in that, The multi-way valve includes a housing having multiple flow holes, and a valve core rotatably mounted within the housing. The valve core includes: The valve body has multiple switching channels, and each switching channel has multiple connecting holes located on the outer peripheral wall of the valve body. The switching channels are connected to at least two flow passages through the connecting holes. A sealing rib is provided on and protrudes from the outer peripheral wall of the valve body. The sealing rib is configured to block the flow of medium between two adjacent connecting holes. In the cross-section of the valve body, the outer diameter of the valve body is D, and the circumferential width of the connection part of the sealing rib connected to the valve body is L. The valve core satisfies the following relationship: L / D≥0.

08. The cross-section is perpendicular to the rotation axis of the valve body.

2. The valve core of the multi-way valve according to claim 1, characterized in that, The valve core satisfies the following relationship: 0.08≤L / D≤0.

1.

3. The valve core of the multi-way valve according to claim 1, characterized in that, The sealing rib and the valve body are integrally machined parts.

4. The valve core of the multi-way valve according to claim 1, characterized in that, In the cross-section, the opposite sidewalls of the sealing rib extend obliquely toward the center of the valve body.

5. The valve core of the multi-way valve according to claim 4, characterized in that, In the cross-section, the angle between each sidewall of the opposite sidewall of the sealing rib and the central axis of the valve body is the first draft angle α1, which satisfies: 10°≤α1≤30°.

6. The valve core of the multi-way valve according to claim 1, characterized in that, The multiple switching channels include a first switching channel and a second switching channel. The connecting hole corresponding to the first switching channel is a first connecting hole. The multiple connecting holes corresponding to the second switching channel include multiple second connecting holes. The first connecting hole is provided on both sides in the length direction. The length of the first connecting hole extending along the circumference of the valve body is greater than that of the second connecting hole. The sealing rib includes a first sub-rib, which is arranged around the first connecting hole.

7. The valve core of the multi-way valve according to claim 6, characterized in that, The multiple connecting holes corresponding to the second switching flow channel also include multiple third connecting holes. The multiple third connecting holes are disposed on one side of the first connecting hole and the second connecting hole along the axial direction of the valve body, and the multiple third connecting holes are spaced apart along the circumferential direction of the valve body. The length of the first connecting hole is greater than the length of the third connecting hole. The sealing rib includes a second sub-rib, and the second sub-rib is disposed between two adjacent third connecting holes.

8. The valve core of the multi-way valve according to claim 7, characterized in that, The plurality of the third connecting holes are constructed to have the same size.

9. The valve core of the multi-way valve according to claim 7 or 8, characterized in that, The first sub-rib and the second sub-rib are arranged spaced apart along the axial direction of the valve body.

10. The valve core of the multi-way valve according to claim 7, characterized in that, The first sub-rib is positioned directly opposite the middle of the plurality of third connecting holes along the arrangement direction.

11. The valve core of the multi-way valve according to claim 7, characterized in that, The second sub-rib is provided with a weight-reducing groove.

12. The valve core of the multi-way valve according to claim 11, characterized in that, The second sub-rib is provided with a plurality of spaced-apart weight-reducing grooves.

13. The valve core of the multi-way valve according to claim 12, characterized in that, The second sub-rib is provided with two weight-reducing grooves spaced apart circumferentially along the valve body.

14. A multi-way valve, characterized in that, include: A housing having multiple flow holes; A valve core, wherein the valve core is any one of claims 1-13, and the valve core is rotatably mounted within the housing.

15. The multi-way valve according to claim 14, characterized in that, One end of the valve core is provided with a pivot shaft that is supported by the housing, and the pivot shaft is fitted with a mating bearing.

16. The multi-way valve according to claim 14, characterized in that, It also includes a sealing element, which is located between the inner wall of the housing and the valve core. The sealing element is provided with multiple clearance holes, which are arranged one-to-one with the multiple flow holes.

17. A thermal management system, characterized in that, include: The multi-way valve according to any one of claims 14-16.

18. A vehicle, characterized in that, include: The thermal management system according to claim 17.

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