Valve device and valve device kit

Abstract

The utility model provides a kind of valve device and valve device kit.The valve device includes valve core, valve core has multiple valve core flow channel ports;Valve body, valve body has multiple valve body flow channels, valve core flow channel port is communicated with external interface by corresponding valve body flow channel, valve body includes oppositely arranged first end face and second end face, first end face is equipped with multiple first interfaces matched with valve core flow channel port, second end face is equipped with multiple second interfaces for matching with external interface, valve body flow channel extends from first interface to second interface;The center line of at least one first interface passes through first end face and second end face, and the center line of this first interface does not pass through the center of the second interface corresponding thereto.The valve device and valve device kit provided by the utility model stagger the interface positions of the two ends of valve body, so that the positions between valve core flow channel port and external interface do not need to correspond, the valve device can be adapted to different flow channel plates without changing the structure of valve core, thereby reducing manufacturing cost.

Description

[0001] This application is based on and claims priority to Chinese Patent Application No. 202521023470.X, filed on May 23, 2025, entitled "Valve Device and Valve Device Kit", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This utility model relates to the field of valve technology, and in particular to a valve device and valve device kit. Background Technology

[0003] With the development of automotive thermal management systems, multi-way valves, as devices capable of controlling fluid flow direction, have been widely used in vehicle thermal management systems. A multi-way valve typically consists of a valve body and a valve core, with the valve core rotating within the valve body to change the fluid flow path.

[0004] Multi-port valves are typically used in conjunction with flow channels. Generally, the valve body flow channel is designed as a vertical pipe, allowing the valve core flow port to connect to an external interface on the flow channel plate via this vertical pipe. Since different thermal management system configurations have varying requirements for flow channels, the interface positions often differ between flow channels. If traditional valve design methods are still used, a dedicated valve device needs to be configured for each flow channel plate, increasing manufacturing costs.

[0005] Therefore, how to make the valve device adaptable to different flow channel plates without changing the valve core structure has become a technical problem that urgently needs to be solved in this field. Utility Model Content

[0006] The purpose of this utility model is to provide a valve device that can be adapted to different flow channel plates without changing the valve core structure.

[0007] To achieve the above objectives, this utility model provides a valve device, which includes:

[0008] Valve core, the valve core having multiple valve core flow channels;

[0009] The valve body has multiple valve body flow channels, and the valve core flow channel port is connected to an external interface through a corresponding valve body flow channel. The valve body includes a first end face and a second end face disposed opposite to each other. The first end face is provided with multiple first interfaces that cooperate with the valve core flow channel port, and the second end face is provided with multiple second interfaces for cooperating with the external interface. The valve body flow channel extends from the first interface to the second interface. The centerline of at least one first interface passes through the first end face and the second end face, and the centerline of the first interface does not pass through the center of its corresponding second interface.

[0010] As a further improvement of this utility model, the first end face and the second end face are substantially parallel.

[0011] As a further improvement of this utility model, the valve body has an inner cavity, the valve core is located in the inner cavity, and the valve core is configured to be rotatable about an axis, and at least one second interface is located outside the projection of the inner cavity onto the second end face.

[0012] As a further improvement of this utility model, the valve body includes a central shaft, the valve core includes a central hole for passing through the central shaft, the valve core rotates about the central shaft, and each of the first interfaces is closer to the central shaft relative to its corresponding second interface.

[0013] As a further improvement of this utility model, the longitudinal section profile of the valve body flow channel along the axial direction is a shaped line segment, which is formed by connecting at least two oppositely curved arc segments.

[0014] As a further improvement of this utility model, the longitudinal section profile of the valve body flow channel along the axial direction includes a vertical section and an arc-shaped section. The vertical section extends from the first interface or the second interface and connects with the arc-shaped section. The extension direction of the vertical section is generally parallel to the axial direction.

[0015] As a further improvement of this utility model, the longitudinal section profile of the valve body flow channel along the axial direction is a slanted line segment, and the slanted line segment forms an angle with the axial direction.

[0016] This utility model also provides a valve device, which includes:

[0017] Valve core, the valve core having multiple valve core flow channels;

[0018] The valve body has multiple valve body flow channels, and the valve core flow channel port is connected to an external interface through the corresponding valve body flow channel. The valve body includes a first end face and a second end face disposed opposite to each other. The first end face is provided with multiple first interfaces that cooperate with the valve core flow channel ports, and the second end face is provided with multiple second interfaces for cooperating with the external interface. The valve body flow channel extends from the first interface to the second interface. Each valve core flow channel port faces the second end face, and the projection of each first interface on the second end face only partially overlaps or does not overlap with its corresponding second interface.

[0019] This utility model also provides a valve device, which includes:

[0020] A valve core having a plurality of valve core flow ports, and the valve core being configured to rotate about an axis;

[0021] The valve body has multiple valve body flow channels, and the valve core flow channel opening is connected to an external interface through a corresponding valve body flow channel. The valve body includes a first end face and a second end face disposed opposite to each other. The first end face is provided with multiple first interfaces that mate with the valve core flow channel openings, and the second end face is provided with multiple second interfaces that mate with the external interface. The valve body flow channels extend from the first interfaces to the second interfaces. The valve body flow channels extend at least partially along a first direction, which is at an angle to the axial direction, and each valve core flow channel opening faces the second end face.

[0022] This utility model also provides a valve device kit, which includes a flow channel plate and the aforementioned valve device. The flow channel plate has multiple external interfaces, and the valve core flow channel port communicates with the external interfaces through the corresponding valve body flow channel. Beneficial effects:

[0023] The valve device and valve device kit provided by this utility model optimize the structure of the valve body flow channel by staggering the interface positions at both ends of the valve body, so that the positions of the valve core flow channel opening and the external interface do not need to correspond. In other words, when the valve device is adapted to different flow channel plates, the valve core structure does not need to be changed. By simply setting the valve body with non-corresponding interface positions at both ends, the valve device can be adapted to different flow channel plates without changing the valve core structure, thereby reducing manufacturing costs. Attached Figure Description

[0024] Figure 1 A cross-sectional view of a valve device kit provided in an embodiment of the present invention;

[0025] Figure 2 An exploded view of a valve device kit provided in another embodiment of this utility model.

[0026] Figure 3 This is a schematic diagram of the valve body from one perspective, provided in an embodiment of the present invention.

[0027] Figure 4 A schematic diagram of the valve body from another perspective, provided in an embodiment of the present utility model;

[0028] Figure 5 A cross-sectional view of another valve device provided in an embodiment of this utility model;

[0029] Figure 6 This is a schematic diagram of the valve body flow channel provided in an embodiment of the present invention;

[0030] Figure 7 This is a schematic diagram of another valve body flow channel provided in an embodiment of the present invention;

[0031] Figure 8This is a schematic diagram of the structure of another valve body flow channel provided in an embodiment of the present utility model;

[0032] Figure 9 This is a schematic diagram of the valve device kit provided in one embodiment of the present invention.

[0033] In the picture:

[0034] 10. Valve device;

[0035] 20. Flow channel plate; 250. External interface;

[0036] 30. Sealing gasket;

[0037] 100. Valve core; 101. Valve core body; 102. Valve core cover; 103. Seal; 110. Valve core flow channel; 120. Center hole;

[0038] 200, Valve body; P1, First end face; P2, Second end face; 210, First interface; 220, Second interface; 230, Inner cavity; 240, Central shaft; 250, External interface; 260, Vertical section; 270, Arc-shaped section;

[0039] 300. Valve body cover

[0040] S, axis;

[0041] L1, the centerline of the first interface;

[0042] L2, the centerline of the second interface;

[0043] V1, First Direction. Detailed Implementation

[0044] The present invention will now be described in detail with reference to the embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any modifications to the mechanism, method, or function made by those skilled in the art based on these embodiments are included within the protection scope of the present invention.

[0045] The terms used herein, such as "up," "down," "left," "right," "front," and "back," indicating spatial relative position, are for illustrative purposes to describe the relationship of one feature relative to another, as shown in the accompanying drawings. It is understood that, depending on the product's placement, these terms may be intended to include different orientations besides those shown in the figures, and should not be construed as limiting the claims. Furthermore, the descriptive term "horizontal" used herein is not entirely equivalent to being perpendicular to the direction of gravity, and allows for a certain angle of inclination.

[0046] like Figure 1-2As shown in Figures 6-8, a first embodiment of this utility model provides a valve device kit, which includes a flow channel plate 20 and a valve device 10. The flow channel plate 20 has multiple external interfaces 250. As an example, the valve device 10 is a disc valve. Furthermore, the valve device 10 can be applied in an automotive thermal management system to regulate the communication between various flow channels in the thermal management system.

[0047] The valve device 10 includes a valve body 200 and a valve core 100. The valve body 200 is the main structural component of the entire valve device 10, serving to support and accommodate other components. The valve device 10 can be connected to multiple external interfaces 250 to achieve relatively complex fluid flow direction control. For example, when the valve device 10 is applied in an automotive thermal management system, the multiple external interfaces 250 can be connected to different pipelines in the automotive thermal management system, thus enabling the valve device 10 to control the fluid flow to different pipelines.

[0048] The valve assembly 10 may also include a valve body cover 300 to facilitate the installation of other components within the valve body 200. The valve body cover 300 is separated from the valve body 200 before the components are installed inside the valve body 200. After installation, the valve body cover 300 may be fixed to the valve body 200 by means of welding or screw connection.

[0049] The valve core 100 may include a valve core body 101 and a valve core cover 102, with the valve core body 101 and valve core cover 102 cooperating to define a valve core cavity. The valve core 100 has multiple flow channels internally, which are the channels through which fluid flows within the valve core. Driving the valve core 100 to rotate to different positions changes the communication state between the flow channels and multiple external interfaces 250, thereby enabling the valve device 10 to switch and control the fluid flow direction.

[0050] The valve device 10 may also include a seal 103 mounted on the valve core body 101. The seal 103 and the valve core body 101 rotate together about an axis S relative to the valve body 200. During the rotation of the valve core body 101, the seal 103 can be tightly connected to the valve core body 101 to improve the sealing performance between the valve core body 101 and the valve body 200.

[0051] In this embodiment, the valve core 100 has multiple valve core flow ports 110, which can be regarded as ports of the aforementioned valve core flow channels. The valve body 200 has multiple valve body flow channels, and the valve core flow ports 110 are connected to the external interface 250 through the corresponding valve body flow channels.

[0052] The valve body 200 includes a first end face P1 and a second end face P2 disposed opposite to each other. The first end face P1 is provided with a plurality of first interfaces 210 that mate with the valve core flow channel 110. The second end face P2 is provided with a plurality of second interfaces 220 that mate with the corresponding external interfaces 250. The valve body flow channel extends from the first interface 210 to the second interface 220 to connect the corresponding first interface 210 and second interface 220.

[0053] The first end face P1 and the second end face P2 are two opposite end faces along the axial direction of the valve body 200. Both the first end face P1 and the second end face P2 can be planes, wherein the first end face P1 faces the valve core 100 and the second end face P2 faces the flow channel plate 20.

[0054] In this embodiment, the centerline L1 of at least one first interface passes through the first end face P1 and the second end face P2, and the centerline L1 of the first interface does not pass through the center of its corresponding second interface 220. The number of first interfaces 210 and second interfaces 220 corresponds to the number of external interfaces 250, and can be 5, 8, 10, etc.

[0055] It should be noted that: the centerline L1 of the first interface is a straight line perpendicular to the plane containing the first interface 210 (i.e., the first end face P1) and passing through the center of the first interface 210. Correspondingly, the centerline L2 of the second interface is a straight line perpendicular to the plane containing the second interface 220 (i.e., the second end face P2) and passing through the center of the second interface 220. The center of the first interface 210 refers to the center of its geometry; for example, if the first interface 210 is circular, then its center is the center of the circle. Similarly, the center of the second interface 220 also refers to the center of its geometry.

[0056] At least one of the center lines L1 of the first interface passes through the first end face P1 and the second end face P2, meaning that the perpendicular line from the first end face P1 passes through the second end face P2. In other words, the first end face P1 and the second end face P2 are not perpendicular. The center line L1 of the first interface does not pass through the center of its corresponding second interface 220, meaning that the centers of the two interfaces are offset from each other, and the center line L1 of the first interface does not coincide with the center line L2 of the second interface.

[0057] The valve device 10 provided in this embodiment optimizes the structure of the valve body flow channel by staggering the interface positions at both ends of the valve body 200. The positions of the valve core flow channel opening 110 and the external interface 250 do not need to correspond. In other words, when the valve device 10 is adapted to different flow channel plates 20, the structure of the valve core 100 does not need to be changed. Only by setting a valve body 200 with non-corresponding interface positions at both ends, the valve device 10 can be adapted to different flow channel plates 20 without changing the structure of the valve core 100, thereby reducing manufacturing costs.

[0058] It should be noted that in this embodiment, the center line L1 of one first interface may pass through the first end face P1 and the second end face P2, and the center line L1 of the first interface may not pass through the center of its corresponding second interface 220. Alternatively, the center lines L1 of two, three or more first interfaces may pass through the first end face P1 and the second end face P2, and the center lines L1 of these first interfaces may not pass through the center of their corresponding second interface 220.

[0059] Furthermore, the first end face P1 and the second end face P2 are substantially parallel. Since the centerline L1 of the first interface does not pass through the center of the corresponding second interface 220, this means that the valve body flow channel has a bend within the valve body 200, such as an inclined or curved structure. Setting the two end faces to be parallel makes this flow channel design easier to process, such as through drilling or casting, because the parallel faces can serve as reference surfaces, reducing machining difficulty. Moreover, with the two end faces parallel, the flow channel plate 20 can be more easily aligned during assembly, reducing leakage problems caused by angular deviations. Because standard gaskets or sealing rings can be used with the parallel end faces, the installation of the seal 103 is also simpler and costs are reduced.

[0060] It should be noted that the statement that the first end face P1 and the second end face P2 are roughly parallel means that the first end face P1 and the second end face P2 can be completely parallel, but they can also have a small angle due to manufacturing tolerances, thermal deformation, etc. in the actual product. "roughly parallel" is an inclusive description of the actual situation.

[0061] like Figures 2-4 As shown, in one embodiment of the present invention, the valve body 200 has an inner cavity 230, the valve core 100 is disposed in the inner cavity 230, and the valve core 100 is configured to rotate about an axis S. At least one second interface 220 is located outside the projection of the inner cavity 230 onto the second end face P2.

[0062] The valve core 100 can rotate around the axis S to different positions, which can change the connection state between the valve core flow channel and multiple external interfaces 250, so that the valve device 10 can realize the switching control of the fluid flow direction.

[0063] The second interface 220 is located outside the projection of the inner cavity 230 onto the second end face P2, indicating that it does not coincide with the inner cavity 230 in the direction of axis S. The second interface 220 is set away from the rotation axis S of the valve core 100. With the above arrangement, the wall thickness distribution of the valve body 200 is optimized, avoiding structural weaknesses caused by excessive concentration of flow channels, thereby improving the overall strength and durability of the valve body 200.

[0064] like Figure 6As shown, as one implementation of the valve body flow channel structure, the longitudinal section profile of the valve body flow channel along the axis S is generally an S-shaped line segment, which is formed by connecting at least two oppositely curved arc segments 270.

[0065] The longitudinal cross-sectional profile of the valve body flow channel along the S-axis is the cross-sectional profile cut out by a longitudinal plane extending along the S-axis. An S-shaped segment refers to a segment whose extension trajectory alternately bends to different sides, resembling the letter "S". In this embodiment, the S-shaped segment is formed by connecting at least two opposing curved arc segments, which bend to different sides.

[0066] The valve body flow channel has an S-shaped profile, which can effectively connect the first interface 210 and the second interface 220 that are not in the same position, and can also reduce the resistance of fluid flow in the valve body flow channel.

[0067] like Figure 7 As shown, as another implementation of the valve body flow channel structure, the longitudinal section profile of the valve body flow channel along the axis S includes a vertical section 260 and an arc section 270. The vertical section 260 extends from the first interface 210 or the second interface 220 and connects with the arc section 270. The extension direction of the vertical section 260 is generally parallel to the axis S.

[0068] Specifically, the longitudinal section of the valve body flow channel along the axial direction comprises two parts, each including a connected vertical section 260 and an arc-shaped section 270. The vertical section 260 extends from the first interface 210, and its end away from the first interface 210 is connected to an arc-shaped section 270 extending to the second interface. The vertical section 260 extends from the second interface 220, and its end away from the second interface 220 is connected to an arc-shaped section 270 extending to the first interface.

[0069] It should be noted that the extension direction of the vertical segment 260 is roughly parallel to the direction of the axis S. This means that the extension direction of the vertical segment 260 and the extension direction of the axis S can be completely parallel, but a small angle may also occur due to manufacturing tolerances, thermal deformation, etc. in the actual product. "roughly parallel" is an inclusive description of the actual situation.

[0070] The arc-shaped section 270 allows the valve body flow channel to effectively connect the first interface 210 and the second interface 220, which are not in the same position, and reduces the flow resistance of the fluid in the valve body flow channel. The vertical section 260 facilitates the docking of the valve body flow channel with the first interface 210 or the second interface 220.

[0071] like Figure 8As shown, as another implementation of the valve body flow channel structure, the longitudinal section profile of the valve body flow channel along the axis S is a slanted line segment, and the slanted line segment forms an angle with the axis S. The angle between the slanted line segment and the axis S can be 30° to 60°.

[0072] The longitudinal section profile of the valve body flow channel along the S-axis is a slanted line segment, indicating that the cross-sectional shape of the valve body flow channel cut by the longitudinal plane along the S-axis is an inclined straight line. The slanted line segment forms an angle with the S-axis, that is, the extension direction of the slanted line segment intersects the extension direction of the S-axis. The slanted line segment profile of the valve body flow channel is suitable for the first interface 210 and the second interface 220, whose connection positions do not correspond. Moreover, this configuration minimizes the length of the valve body flow channel, which is beneficial for fluid flow through the valve body flow channel.

[0073] like Figure 1-4 As shown, in one embodiment of this utility model, the valve body 200 includes a central shaft 240, and the valve core 100 includes a central hole 120 for passing through the central shaft 240. The valve core 100 is rotatable about the central shaft 240. It is conceivable that the aforementioned axis S coincides with the axis of the central shaft 240.

[0074] In this embodiment, each first interface 210 is closer to the central axis 240 than its corresponding second interface 220. That is, in the radial direction of the valve body 200, the distance between the first interface 210 and the central axis 240 is less than the distance between the second interface 220 and the central axis 240.

[0075] Each first interface 210 is closer to the central axis 240 than its corresponding second interface 220. That is, the valve body flow channel gradually moves closer to the edge of the valve body 200 from the first interface 210 to the second interface 220. In this way, the distance between adjacent second interfaces 220 can be increased, so that the valve device 10 can be adapted to the flow channel plate 20 with a relatively dispersed arrangement of external interfaces 250.

[0076] like Figure 5 The present invention is shown in another embodiment, in which each first interface 210 is further away from the central axis 240 relative to its corresponding second interface 220.

[0077] Each first interface 210 is further away from the central axis 240 relative to its corresponding second interface 220. That is, the valve body flow channel gradually converges towards the central axis 240 of the valve body 200 from the first interface 210 to the second interface 220. In this way, the distance between adjacent second interfaces 220 can be reduced, so that the valve device 10 can be adapted to the flow channel plate 20 with a relatively concentrated arrangement of external interfaces 250.

[0078] like Figure 1-2As shown in Figures 6-8, a second embodiment of this utility model provides a valve device kit, which includes a flow channel plate 20 and a valve device 10. The flow channel plate 20 has multiple external interfaces 250. The valve device 10 includes a valve core 100 and a valve body 200. The valve core 100 has multiple valve core flow channels 110, and the valve core 100 can be configured to rotate about an axis S; the valve body 200 has multiple valve body flow channels, and the valve core flow channels 110 communicate with the external interfaces 250 through the corresponding valve body flow channels.

[0079] The valve device 10 may also include a sealing gasket 30 mounted on the valve body 200. The sealing gasket 30 is disposed on the second end face P2 of the valve body 200 and is used to seal the joint position between the valve device 10 and the flow channel plate 20.

[0080] The valve body 200 includes a first end face P1 and a second end face P2 disposed opposite to each other. The second end face P2 is provided with a plurality of first interfaces 210 that mate with the valve core flow passage 110, and a plurality of second interfaces 220 that mate with the corresponding external interfaces 250. The valve body flow passage extends from the first interfaces 210 to the second interfaces 220. Each valve core flow passage 110 faces the second end face P2, and the projection of each first interface 210 on the second end face P2 may only partially overlap with or not overlap with the corresponding second interface 220.

[0081] The valve core flow channel 110 mates with the first interface 210 on the first end face P1. Each valve core flow channel 110 faces the second end face P2, meaning that the first end face P1 and the second end face P2 cannot be perpendicular. The projection of each first interface 210 on the second end face P2 only partially overlaps or does not overlap with the corresponding second interface 220, indicating that the interface positions on the two end faces of the valve body 200 are partially or completely offset. This allows the external interface 250 on the flow channel plate 20 to be arranged more flexibly without strictly aligning the valve core flow channel 110. In other words, the valve core 100 structure does not need to be changed. By simply setting valve body flow channels with non-corresponding interface positions at both ends, the valve device 10 can be adapted to different flow channel plates 20 without changing the valve core 100 structure, thus reducing manufacturing costs.

[0082] Other features of this embodiment can be found in the first embodiment described above, and will not be repeated here.

[0083] like Figures 1-2 As shown in Figures 6-8, a third embodiment of this utility model provides a valve device kit, which includes a flow channel plate 20 and a valve device 10. The flow channel plate 20 has multiple external interfaces 250. The valve device 10 includes a valve core 100 and a valve body 200. The valve core 100 has multiple valve core flow channels 110, and the valve core 100 can be configured to rotate about an axis S; the valve body 200 has multiple valve body flow channels, and the valve core flow channels 110 communicate with the external interfaces 250 through the corresponding valve body flow channels.

[0084] like Figure 1-9 As shown, the valve body 200 includes a first end face P1 and a second end face P2 disposed opposite to each other. The second end face P2 has a plurality of first interfaces 210 that mate with the valve core flow passage 110, and a plurality of second interfaces 220 that mate with corresponding external interfaces 250. The valve body flow passage extends from the first interface 210 to the second interface 220. The valve body flow passage extends at least partially along a first direction V1, which is at an angle to the axis S direction, and each valve core flow passage 110 faces the second end face P2. The angle between the first direction V1 and the axis S direction can be 10°, 30°, or 30°.

[0085] The valve body flow channel extends at least partially along a first direction V1, which is at an angle to the axis S, meaning that at least part of the valve body flow channel is a non-vertical pipe, such as an oblique pipe or a bend. This pipe design allows for more flexible arrangement of the external interface 250 on the flow channel plate 20, without requiring strict alignment with the valve core flow channel opening 110. In other words, the valve core 100 structure does not need to be changed; by simply setting valve body flow channels with non-corresponding end interface positions, the valve device 10 can be adapted to different flow channel plates 20 without changing the valve core 100 structure, thus reducing manufacturing costs.

[0086] Other features of this embodiment can be found in the first embodiment described above, and will not be repeated here.

[0087] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0088] The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.

Claims

1. A valve device, comprising: Valve core, the valve core having multiple valve core flow channels; The valve body has multiple valve body flow channels, and the valve core flow channel port is connected to an external interface through a corresponding valve body flow channel, characterized in that: The valve body includes a first end face and a second end face disposed opposite to each other. The first end face is provided with a plurality of first interfaces that cooperate with the valve core flow channel. The second end face is provided with a plurality of second interfaces that cooperate with the external interface. The valve body flow channel extends from the first interface to the second interface. The center line of at least one first interface passes through the first end face and the second end face, and the center line of the first interface does not pass through the center of the corresponding second interface.

2. The valve device according to claim 1, characterized in that, The first end face and the second end face are generally parallel.

3. The valve device according to claim 1, characterized in that, The valve body has an inner cavity, the valve core is located in the inner cavity and the valve core is configured to rotate about an axis, and at least one second interface is located outside the projection of the inner cavity onto the second end face.

4. The valve device according to claim 1, characterized in that, The valve body includes a central shaft, the valve core includes a central hole for passing through the central shaft, the valve core rotates about the central shaft, and each of the first interfaces is closer to the central shaft relative to its corresponding second interface.

5. The valve device according to claim 3, characterized in that, The longitudinal cross-sectional profile of the valve body flow channel along the axial direction is an S-shaped line segment, which is formed by connecting at least two oppositely curved arc segments.

6. The valve device according to claim 3, characterized in that, The longitudinal cross-sectional profile of the valve body flow channel along the axial direction includes a vertical section and an arc-shaped section. The vertical section extends from the first interface or the second interface and connects with the arc-shaped section. The extension direction of the vertical section is generally parallel to the axial direction.

7. The valve device according to claim 3, characterized in that, The longitudinal section profile of the valve body flow channel along the axial direction is a diagonal line segment, and the diagonal line segment forms an angle with the axial direction.

8. A valve device, comprising: Valve core, the valve core having multiple valve core flow channels; The valve body has multiple valve body flow channels, and the valve core flow channel port is connected to an external interface through a corresponding valve body flow channel, characterized in that: The valve body includes a first end face and a second end face that are disposed opposite to each other. The first end face is provided with a plurality of first interfaces that cooperate with the valve core flow channel orifice. The second end face is provided with a plurality of second interfaces that cooperate with external interfaces. The valve body flow channel extends from the first interface to the second interface. Each valve core flow channel orifice faces the second end face. The projection of each first interface on the second end face only partially overlaps with or does not overlap with the corresponding second interface.

9. A valve device, comprising: A valve core having a plurality of valve core flow ports, and the valve core being configured to rotate about an axis; The valve body has multiple valve body flow channels, and the valve core flow channel port is connected to an external interface through a corresponding valve body flow channel, characterized in that: The valve body includes a first end face and a second end face disposed opposite to each other. The first end face is provided with a plurality of first interfaces that mate with the valve core flow channel orifice. The second end face is provided with a plurality of second interfaces that mate with external interfaces. The valve body flow channel extends from the first interface to the second interface. The valve body flow channel extends at least partially along a first direction, which is at an angle to the axial direction. Each valve core flow channel orifice faces the second end face.

10. A valve device kit, characterized in that, The device includes a flow channel plate and a valve device as described in any one of claims 1-9, wherein the flow channel plate has multiple external interfaces, and the valve core flow channel port is connected to the external interfaces through the corresponding valve body flow channel.

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