Valve device and thermal management system

Abstract

The utility model discloses a valve device and heat management system. The valve device includes a valve cover, a receiving cavity is formed in the valve cover, and the valve cover is connected to a flow channel plate; a valve core assembly is rotatably arranged in the receiving cavity and is provided with a plurality of valve core flow channels; a communication member is arranged in the receiving cavity between the valve core assembly and the flow channel plate, and the communication member is provided with a plurality of communication channels for respectively communicating the plurality of valve core flow channels and a plurality of external flow channels. In the utility model, the receiving cavity is formed in the valve cover, the valve core assembly and the communication member are arranged in the receiving cavity, the valve cover is fixed to the flow channel plate, the communication member is an internal member between the valve cover and the flow channel plate, and thus, when considering sealing the valve device, only the sealing between the valve cover and the flow channel plate needs to be considered. Compared with the prior art, the position that needs to be sealed is reduced, the cost is saved, and the risk of leakage of the valve device is also reduced.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, and in particular to a valve device and a thermal management system. Background Technology

[0002] As a critical fluid control component in a thermal management system, the reliability of the valve assembly has a vital impact on the overall operation of the system. Existing valve assemblies include a valve body upper cover, a valve core assembly, a valve body lower cover, and a flow channel plate. The upper valve cover is fixedly connected to the lower valve body cover, which in turn is fixedly connected to the flow channel plate. The valve core assembly is located within the space formed by the upper and lower valve body covers. Therefore, to prevent fluid leakage from the gaps between the upper and lower valve body covers and between the lower valve body cover and the flow channel plate, the valve assembly needs to ensure a good seal between these two covers, as well as between the lower valve body cover and the flow channel plate. This increases the difficulty of sealing and makes the valve assembly prone to leakage. Utility Model Content

[0003] This utility model provides a valve device and a thermal management system, the purpose of which is to solve the problem that in the prior art, the valve device requires sealing at many locations, thus increasing the difficulty of sealing.

[0004] To achieve the above objectives, this utility model provides a valve device suitable for installation on a flow channel plate, wherein the flow channel plate is provided with multiple external flow channels for connecting to external pipelines, and the valve device includes:

[0005] A valve cover having an internal cavity and being connected to the flow channel plate;

[0006] A valve core assembly, which is rotatably disposed within the accommodating cavity and has a plurality of valve core flow channels thereon;

[0007] A connecting member is disposed in the accommodating cavity and located between the valve core assembly and the flow channel plate. The connecting member is provided with multiple connecting channels for respectively connecting multiple valve core flow channels and multiple external flow channels.

[0008] As a further improvement of this utility model, the valve device further includes a first sealing gasket, at least a portion of which is located between the connecting member and the flow channel plate, and the first sealing gasket also extends between the valve cover and the flow channel plate.

[0009] As a further improvement of this utility model, the valve cover includes a first annular surface corresponding to the outer peripheral surface of the connecting member and a second annular surface corresponding to the outer peripheral surface of the first sealing gasket. The second annular surface is located outside the first annular surface in the radial direction of the valve device. The valve cover also includes a stepped surface connecting the first annular surface and the second annular surface. One side of the first sealing gasket in the thickness direction contacts the connecting member and the stepped surface, and the other side of the first sealing gasket in the thickness direction is used to contact the flow channel plate.

[0010] As a further improvement of this utility model, a support shaft is formed on the connecting member, and the valve device further includes a rotating member rotatably connected to the support shaft. A first toothed portion is formed on the outer periphery of the rotating member, and a second toothed portion that cooperates with the first toothed portion is formed on the outer periphery of the valve core assembly.

[0011] As a further improvement of this utility model, the connecting member has an insertion hole on the side opposite to the valve core assembly. The insertion hole is used for the insertion part formed on the flow channel plate to be inserted, and the first sealing gasket has a through hole for the insertion part to pass through.

[0012] As a further improvement of this utility model, the valve device further includes a first sealing gasket and a second sealing gasket, at least a portion of the first sealing gasket is located between the connecting member and the flow channel plate, and at least a portion of the second sealing gasket is located between the valve cover and the flow channel plate, wherein the second sealing gasket is a side sealing type.

[0013] As a further improvement of this utility model, the valve device further includes a connecting structure for connecting the valve cover and the connecting member, so as to place the connecting member in the receiving cavity.

[0014] As a further improvement of this utility model, the connection structure includes a buckle formed on one of the valve cover and the connecting member, and a slot formed on the other of the valve cover and the connecting member, wherein the buckle is engaged in the slot.

[0015] As a further improvement of this utility model, the connection structure includes a mounting hole formed on one of the valve cover and the connecting member, a through hole formed on the other of the valve cover and the connecting member, and a screw connecting the through hole and the mounting hole.

[0016] This utility model also provides a thermal management system, which includes a flow channel plate and the valve device described above.

[0017] As a further improvement of this utility model, the flow channel plate is formed with a rim surrounding the valve cover, and the shape of the inner circumferential surface of the rim matches the shape of the outer circumferential surface of the valve cover.

[0018] Beneficial effects:

[0019] In the valve device and thermal management system provided by this utility model, a receiving cavity is formed inside the valve cover, and the valve core assembly and the connecting member are disposed in the receiving cavity. After the valve cover is fixed to the flow channel plate, the connecting member is an internal component located between the valve cover and the flow channel plate. In this way, when considering the sealing of the valve device, only the sealing between the valve cover and the flow channel plate needs to be considered. Compared with the prior art, which requires sealing between the upper cover and the lower cover of the valve body, and between the lower cover of the valve body and the flow channel plate, this reduces the number of sealing positions, saves costs, and also reduces the risk of valve device leakage. Attached Figure Description

[0020] Figure 1 A cross-sectional view of a valve device and a flow channel plate in a thermal management system provided according to an embodiment of the present utility model;

[0021] Figure 2 An exploded view of the valve device and flow channel plate in a thermal management system provided according to an embodiment of the present invention;

[0022] Figure 3 for Figure 1 A three-dimensional structural diagram of the central flow channel plate;

[0023] Figure 4 for Figure 1 A three-dimensional structural diagram of the middle valve cover;

[0024] Figure 5 for Figure 1 A three-dimensional structural diagram of the connecting component;

[0025] Figure 6 for Figure 1 A three-dimensional structural diagram of the first sealing gasket in the middle;

[0026] Figure 7 for Figure 1 A magnified diagram of point A in the middle.

[0027] In the picture:

[0028] 100. Valve device;

[0029] 10. Valve cover; 11. Receiving cavity; 12. First annular surface; 13. Second annular surface; 14. Stepped surface;

[0030] 20. Valve core assembly; 21. Valve core flow channel; 22. Second toothed portion;

[0031] 30. Flow channel plate; 31. External flow channel; 32. Edge banding; 33. Insertion part;

[0032] 40. Connecting component; 41. Connecting channel; 42. Support shaft; 43. Insertion hole;

[0033] 50. First sealing gasket; 51. Perforation; 52. First opening;

[0034] 61. Buckle; 62. Slot; 63. Through hole; 64. Mounting hole; 65. Screw;

[0035] 70. Third sealing gasket;

[0036] 80. Driver components.

[0037] 90. Rotating component; 91. First toothed part. Detailed Implementation

[0038] 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.

[0039] 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.

[0040] like Figure 1 As shown in Figure 7, one embodiment of this utility model provides a thermal management system, which includes a valve device 100 and a flow channel plate 30. The thermal management system can be specifically used in equipment such as new energy vehicles. The flow channel plate 30 is provided with multiple external flow channels 31 for connecting to external pipelines. Here, external pipelines refer to the pipelines connecting to the flow channel plate 30 in the thermal management system. The multiple external flow channels 31 are connected to the valve device 100, and the valve device 100 can control the connection relationship between the various external flow channels 31, thereby controlling the flow of fluids such as coolant in the thermal management system.

[0041] The valve device 100 includes a valve cover 10, a valve core assembly 20, and a connecting member 40. The valve cover 10 has a receiving cavity 11 formed inside and is connected to a flow channel plate 30. The valve core assembly 20 is rotatably disposed within the receiving cavity 11 and has multiple valve core flow channels 21 thereon. The receiving cavity 11 has an opening to accommodate the valve core assembly 20, through which the valve core assembly 20 enters the receiving cavity 11. The flow channel plate 30 is located at the opening. The connecting member 40 is disposed within the receiving cavity 11 and between the valve core assembly 20 and the flow channel plate 30. The connecting member 40 has multiple connecting channels 41 for respectively connecting the multiple valve core flow channels 21 and multiple external flow channels 31.

[0042] The valve device 100 provided in this embodiment has a receiving cavity 11 formed in the valve cover 10, and the valve core assembly 20 and the connecting member 40 are disposed in the receiving cavity 11. After the valve cover 10 is fixed to the flow channel plate 30, the connecting member 40 is an internal component located between the valve cover 10 and the flow channel plate 30. In this way, when considering sealing the valve device 100, only the sealing between the valve cover 10 and the flow channel plate 30 needs to be considered. Compared with the prior art, which requires sealing between the upper cover and the lower cover of the valve body, and between the lower cover of the valve body and the flow channel plate 30, this reduces the number of sealing positions, saves costs, and also reduces the risk of leakage of the valve device 100.

[0043] The valve device 100 also includes a first sealing gasket 50, at least a portion of which is located between the connecting member 40 and the flow channel plate 30. "At least a portion of the first sealing gasket 50 is located between the connecting member 40 and the flow channel plate 30" means that part or all of the first sealing gasket 50 is located between the connecting member 40 and the flow channel plate 30, allowing the connecting member 40, the first sealing gasket 50, and the flow channel plate 30 to fit tightly together. This ensures that when fluid flows between the connecting channel 41 and the external flow channel 31, it will not leak outwards through the gap between the connecting member 40 and the flow channel plate 30. It is conceivable that the first sealing gasket 50 has a first opening 52 for connecting the corresponding connecting channel 41 and the external flow channel 31, allowing fluid to flow between the connecting channel 41 and the external flow channel 31.

[0044] In this embodiment, the first sealing gasket 50 also extends between the valve cover 10 and the flow channel plate 30, so that the fluid in the accommodating cavity 11 cannot leak outward from the gap between the valve cover 10 and the flow channel plate 30.

[0045] like Figure 1As shown in the figure, the dashed line L represents the flow path of the fluid. Since the first sealing gasket 50 extends between the valve cover 10 and the flow channel plate 30, the fluid in the accommodating cavity 11 flows through the gaps between the components to the junction of the valve cover 10 and the flow channel plate 30. Because the valve cover 10, the first sealing gasket 50 and the flow channel plate 30 are tightly fitted together, the fluid cannot leak outward from the gap between the valve cover 10 and the flow channel plate 30.

[0046] Overall, in this embodiment, some of the first sealing gaskets 50 achieve the seal between the connecting member 40 and the flow channel plate 30, and some of the first sealing gaskets 50 achieve the seal between the valve cover 10 and the flow channel plate 30. The structure of the valve device 100 is relatively compact and simple.

[0047] In this embodiment, the valve cover 10 includes a first annular surface 12 corresponding to the outer peripheral surface of the connecting member 40 and a second annular surface 13 corresponding to the outer peripheral surface of the first sealing gasket 50. Both the first annular surface 12 and the second annular surface 13 are located inside the valve cover 10. At least a portion of the connecting member 40 is located within the area enclosed by the first annular surface 12, and at least a portion of the first sealing gasket 50 is located within the area enclosed by the second annular surface 13. The second annular surface 13 is located on the periphery of the first annular surface 12 in the radial direction of the valve device 100. The valve cover 10 also includes a stepped surface 14 connecting the first annular surface 12 and the second annular surface 13. One side of the first sealing gasket 50 in the thickness direction contacts the connecting member 40 and the stepped surface 14, and the other side of the first sealing gasket 50 in the thickness direction contacts the flow channel plate 30.

[0048] With the above configuration, the first annular surface 12 defines the position of the connecting member 40, the second annular surface 13 defines the position of the first sealing gasket 50, and the step surface 14 is configured so that one side of the first sealing gasket 50 in the thickness direction can contact the valve cover 10, and the other side of the first sealing gasket 50 in the thickness direction can contact the flow channel plate 30, so that the first sealing gasket 50 can achieve a seal between the valve cover 10 and the flow channel plate 30.

[0049] A support shaft 42 is formed on the connecting member 40. The valve device 100 also includes a rotating member 90 rotatably connected to the support shaft 42. A first toothed portion 91 is formed on the outer periphery of the rotating member 90, and a second toothed portion 22 that mates with the first toothed portion 91 is formed on the outer periphery of the valve core assembly 20. After the rotating member 90 rotates, the valve core assembly 20 can rotate accordingly through the engagement between the first toothed portion 91 and the second toothed portion 22. When the valve core assembly 20 rotates to different positions, the correspondence between its multiple valve core flow channels 21 and multiple connecting channels 41 changes, thereby enabling the valve device 100 to switch operating states and control the flow path of the fluid in the thermal management system in different ways.

[0050] The connecting member 40 has an insertion hole 43 on the side opposite to the valve core assembly 20. The insertion hole 43 is used for the insertion part 33 formed on the flow channel plate 30 to be inserted. The first sealing gasket 50 has a through hole 51 for the insertion part 33 to pass through.

[0051] When the rotating component 90 drives the valve core assembly 20 to rotate, the support shaft 42 needs to withstand a large force. After the insertion part 33 passes through the first sealing gasket 50 and is inserted into the insertion hole 43, it can provide effective structural support for the support shaft 42, preventing the support shaft 42 from shifting or shaking. The insertion part 33 inserted into the insertion hole 43 can also ensure the stability of the relative position between the flow channel plate 30 and the connecting component 40.

[0052] In some embodiments, the position of the insertion hole 43 corresponds to the position of the support shaft 42 in the axial direction of the valve device 100. Since the insertion hole 43 and the support shaft 42 correspond in the axial direction, when the insertion part 33 passes through the first sealing gasket 50 and is inserted into the insertion hole 43, it can be directly aligned with the critical stress area where the support shaft 42 is located, providing precise support for the support shaft 42.

[0053] The valve device 100 may also include a drive assembly 80 for driving the rotating member 90 to rotate, the drive assembly 80 driving the rotating member 90 to rotate, and is able to control the valve core assembly 20 to rotate to different positions.

[0054] In other embodiments of this utility model, two sealing gaskets may be provided to respectively achieve the sealing between the connecting member 40 and the flow channel plate 30 and the sealing between the valve cover 10 and the flow channel plate 30. That is, the valve device 100 includes a first sealing gasket 50 and a second sealing gasket, with at least a portion of the first sealing gasket 50 located between the connecting member 40 and the flow channel plate 30, and at least a portion of the second sealing gasket located between the valve cover 10 and the flow channel plate 30. Here, the first sealing gasket 50 can only achieve the sealing function between the connecting member 40 and the flow channel plate 30, or it can extend to the space between the valve cover 10 and the flow channel plate 30 as described above. In this case, the second sealing gasket is equivalent to adding an extra layer of sealing between the valve cover 10 and the flow channel plate 30.

[0055] The second sealing gasket can be a side seal, meaning that the direction of deformation of the second sealing gasket is perpendicular to the direction of fluid impact on the valve core assembly 20. In other words, the direction of deformation of the second sealing gasket is perpendicular to the direction of deformation of the first sealing gasket 50. It is understood that the fluid impact on the valve core assembly 20 generates a force, which is transmitted through the valve core assembly 20 to the valve cover 10, causing the valve cover 10 to tend to move away from the flow channel plate 30. The side seal of the second sealing gasket is not affected by this tendency to move.

[0056] In this embodiment, the valve device 100 further includes a connecting structure for connecting the valve cover 10 and the connecting member 40, so that the relative position between the valve cover 10 and the connecting member 40 can be kept stable, and the connecting member 40 is confined within the receiving cavity 11 under the action of the connecting structure. When the relative position between the valve cover 10 and the connecting member 40 is kept stable, the valve core assembly 20 can also be reliably confined between the valve cover 10 and the connecting member 40. Thus, during transportation, the various parts of the valve device 100 can remain as a whole and will not fall apart.

[0057] Specifically, the connection structure includes a snap-fit ​​61 formed on one of the valve cover 10 and the connecting member 40, and a slot 62 formed on the other of the valve cover 10 and the connecting member 40. When the snap-fit ​​61 is engaged in the slot 62, the valve cover 10 and the connecting member 40 can be reliably connected together. The interplay between the snap-fit ​​61 and the slot 62 facilitates the connection and separation of the valve cover 10 and the connecting member 40.

[0058] To ensure the connection between the connecting piece 40 and the valve cover 10, multiple clips 61 and slots 62 can be provided.

[0059] In this embodiment, the snap fastener 61 is formed on the valve cover 10, and the slot 62 is formed on the connecting member 40. It is conceivable that in other embodiments, the snap fastener 61 may be formed on the connecting member 40, while the slot 62 may be formed on the valve cover 10.

[0060] In some embodiments, the connection structure further includes a mounting hole 64 formed on one of the valve cover 10 and the connecting member 40, a through hole 63 formed on the other of the valve cover 10 and the connecting member 40, and a screw 65 connecting the through hole 63 and the mounting hole 64. Connecting the connecting member 40 and the valve cover 10 with the screw 65 effectively ensures the connection strength between the connecting member 40 and the valve cover 10. The screw 65 is also easy to disassemble, which is beneficial for the later maintenance of the valve device 100.

[0061] In this embodiment, a through hole 63 is formed in the connecting member 40, and a mounting hole 64 is formed in the valve cover 10. It is conceivable that in other embodiments, the through hole 63 may be formed in the valve cover 10, while the mounting hole 64 may be formed in the connecting member 40.

[0062] In this embodiment, a rim 32 is formed on the flow channel plate 30 surrounding the valve cover 10, and the shape of the inner circumferential surface of the rim 32 matches the shape of the outer circumferential surface of the valve cover 10. When the valve cover 10 is connected to the flow channel plate 30, the valve cover 10 can be inserted into the area enclosed by the rim 32 to achieve positioning between the valve cover 10 and the flow channel plate 30. Furthermore, the rim 32 can limit the relative position of the valve cover 10 relative to the flow channel plate 30, so that the relative position between the valve cover 10 and the flow channel plate 30 can remain stable.

[0063] In one embodiment of this utility model, the second sealing gasket can be disposed between the edge 32 and the valve cover 10, thereby achieving a seal between the valve cover 10 and the flow channel plate 30.

[0064] In this embodiment, the valve device 100 may further include a third sealing gasket 70, at least a portion of which is located between the valve core assembly 20 and the connecting member 40. Thus, when fluid flows between the valve core flow channel 21 and the connecting channel 41, leakage will not occur from the gap between the valve core flow channel 21 and the connecting member 40, ensuring the sealing effect of the valve device 100. It is conceivable that the first sealing gasket 50 may have a second opening (not shown in the figure) for connecting the corresponding connecting channel 41 and the valve core flow channel 21, allowing fluid to flow between the connecting channel 41 and the valve core flow channel 21.

[0065] 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.

[0066] 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 (100) suitable for installation on a flow channel plate (30), said flow channel plate (30) having a plurality of external flow channels (31) for connecting to external pipelines, characterized in that: The valve device (100) includes: Valve cover (10), wherein a receiving cavity (11) is formed inside the valve cover (10), and the valve cover (10) is connected to the flow channel plate (30); A valve core assembly (20) is rotatably disposed within the accommodating cavity (11) and has a plurality of valve core flow channels (21) thereon; A connecting member (40) is disposed in the accommodating cavity (11) and located between the valve core assembly (20) and the flow channel plate (30). The connecting member (40) is provided with multiple connecting channels (41) for connecting multiple valve core flow channels (21) and multiple external flow channels (31) respectively.

2. The valve device (100) according to claim 1, characterized in that, The valve device (100) further includes a first sealing gasket (50), at least a portion of which is located between the connecting member (40) and the flow channel plate (30), and the first sealing gasket (50) also extends between the valve cover (10) and the flow channel plate (30).

3. The valve device (100) according to claim 2, characterized in that, The valve cover (10) includes a first annular surface (12) corresponding to the outer peripheral surface of the connecting member (40) and a second annular surface (13) corresponding to the outer peripheral surface of the first sealing gasket (50). The second annular surface (13) is located around the first annular surface (12) in the radial direction of the valve device (100). The valve cover (10) also includes a stepped surface (14) connecting the first annular surface (12) and the second annular surface (13). One side of the first sealing gasket (50) in the thickness direction contacts the connecting member (40) and the stepped surface (14), and the other side of the first sealing gasket (50) in the thickness direction is used to contact the flow channel plate (30).

4. The valve device (100) according to claim 2, characterized in that, A support shaft (42) is formed on the connecting member (40), and the valve device further includes a rotating member (90) rotatably connected to the support shaft (42). A first toothed portion (91) is formed on the outer periphery of the rotating member (90), and a second toothed portion (22) that cooperates with the first toothed portion (91) is formed on the outer periphery of the valve core assembly (20).

5. The valve device (100) according to claim 4, characterized in that, The connecting member (40) has an insertion hole (43) on the side opposite to the valve core assembly (20). The insertion hole (43) is used for the insertion part (33) formed on the flow channel plate (30) to be inserted. The first sealing gasket (50) has a through hole (51) for the insertion part (33) to pass through.

6. The valve device (100) according to claim 1, characterized in that, The valve device (100) further includes a first sealing gasket (50) and a second sealing gasket, at least a portion of the first sealing gasket (50) being located between the connecting member (40) and the flow channel plate (30), and at least a portion of the second sealing gasket being located between the valve cover (10) and the flow channel plate (30), wherein the second sealing gasket is a side sealing type.

7. The valve device (100) according to claim 1, characterized in that, The valve device (100) further includes a connecting structure for connecting the valve cover (10) and the connecting member (40) to place the connecting member (40) in the receiving cavity (11).

8. The valve device (100) according to claim 7, characterized in that, The connection structure includes a snap (61) formed on one of the valve cover (10) and the connecting member (40) and a slot (62) formed on the other of the valve cover (10) and the connecting member (40), wherein the snap (61) is engaged in the slot (62).

9. The valve device (100) according to claim 7 or 8, characterized in that, The connection structure includes a mounting hole (64) formed on one of the valve cover (10) and the connecting member (40), a through hole (63) formed on the other of the valve cover (10) and the connecting member (40), and a screw (65) connecting the through hole (63) and the mounting hole (64).

10. A thermal management system, characterized in that, Includes a flow channel plate (30) and a valve device (100) as described in any one of claims 1-9.

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