Valve device and thermal management system

Abstract

The utility model discloses a valve device and a thermal management system. The valve device comprises a fixed valve piece, a fixed valve piece and a movable valve piece, the movable valve part is rotationally connected with the fixed valve part so as to cover and open the flow channel opening; the box seat is connected with the fixed valve part, the box seat and the fixed valve part define a containing cavity, the movable valve part is arranged in the containing cavity, and the box seat is provided with a stop part used for limiting the rotating position of the movable valve part; the fixed valve piece comprises a first positioning part, and the first positioning part extends in the circumferential direction of the fixed valve piece. The box base comprises a second positioning part, and the second positioning part is configured to be capable of being matched with the first positioning part so as to at least limit the position of the box base relative to the fixed valve piece in the circumferential direction of the fixed valve piece. According to the utility model, the first positioning part is matched with the second positioning part, so that the relative position between the box seat and the fixed valve piece can be accurately positioned, and when the rotating position of the movable valve piece is limited by the box seat, the box seat and the fixed valve piece can be accurately positioned.

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] Existing thermal management systems include valve devices, which consist of a fixed valve and a movable valve. Rotating the movable valve allows it to switch between different positions, thus opening and closing the valve device. The valve device includes a housing connected to the fixed valve, and the rotational position of the movable valve is specifically defined by the housing.

[0003] In existing valve devices, the relative position between the fixed valve and the housing cannot be effectively defined, and there is a deviation in the relative position between the fixed valve and the housing. As a result, the housing cannot accurately define the rotation position of the moving valve, which leads to inaccurate control of the moving valve. Utility Model Content

[0004] The purpose of this invention is to provide a valve device and a thermal management system to solve the problem in the prior art that the relative position between the valve and the housing cannot be effectively defined.

[0005] To achieve the above objectives, this utility model provides a valve device, comprising:

[0006] A fixed valve component, wherein a flow channel opening is provided on the fixed valve component;

[0007] A movable valve component, which is rotatably connected to the fixed valve component, so as to cover and open the flow channel opening;

[0008] A housing base is connected to the fixed valve member and forms a receiving cavity with the fixed valve member. The movable valve member is disposed in the receiving cavity. The housing base is provided with a stop portion for limiting the rotation position of the movable valve member.

[0009] The fixed valve component includes a first positioning part, which extends along the circumferential direction of the fixed valve component;

[0010] The housing includes a second positioning portion configured to cooperate with the first positioning portion to at least define the position of the housing relative to the fixed valve member in the circumferential direction of the fixed valve member.

[0011] As a further improvement of this utility model, the first positioning part is an extension strip extending along the circumferential direction of the fixed valve member, and the second positioning part is a first opening that clamps the extension strip along the circumferential direction of the fixed valve member.

[0012] As a further improvement of this utility model, the extension strip is located at the outer peripheral edge of the fixed valve member, and the length of the extension strip extending along the circumferential direction of the fixed valve member is the same as the length of the first opening extending along the circumferential direction of the fixed valve member.

[0013] As a further improvement of this utility model, the first opening is also used to connect the accommodating cavity and the outside of the housing. The housing is also provided with at least one second opening connecting its outside and the accommodating cavity. The length of the first opening extending along the circumferential direction of the fixed valve member and the length of the second opening extending along the circumferential direction of the fixed valve member are different.

[0014] As a further improvement of this utility model, the fixed valve member is provided with a groove extending along its circumference. The groove is an arc shape that is not completely closed. The extension strip extends along the circumference of the fixed valve member to both ends of the groove, and part of the housing is located in the groove.

[0015] As a further improvement of this utility model, the first positioning part is a limiting groove formed in the fixed valve member, and the second positioning part is a positioning block formed in the housing and cooperating with the limiting groove.

[0016] As a further improvement of this utility model, the limiting groove is located at the outer peripheral edge of the fixed valve member, and the positioning block is formed by protrusion from the inner peripheral surface of the housing.

[0017] As a further improvement of this utility model, the fixed valve component includes an abutting surface that abuts against the housing along the height direction of the valve device, and an extension portion protruding from the abutting surface. The extension portion extends into the housing and is configured to cooperate with the inner circumferential surface of the housing. The first positioning portion is formed on the extension portion.

[0018] As a further improvement of this utility model, the housing and the positioning block are integrally formed.

[0019] This utility model also provides a thermal management system, which includes the valve device described above.

[0020] Beneficial effects:

[0021] In the valve device and thermal management system provided by this utility model, the first positioning part and the second positioning part cooperate to accurately position the relative position between the housing and the fixed valve. When the rotation position of the moving valve is limited by the housing, the accurate positioning between the housing and the fixed valve can avoid the miscontrol of the moving valve. Attached Figure Description

[0022] Figure 1 An exploded view of part of the structure of the valve device in the first embodiment provided by this utility model;

[0023] Figure 2 A cross-sectional view of a portion of the structure of the valve device in the first embodiment provided by this utility model;

[0024] Figure 3 for Figure 1 Schematic diagram of the structure of the center-determining valve;

[0025] Figure 4 for Figure 1 Top view of the center-determining valve component;

[0026] Figure 5 for Figure 1 Schematic diagram of the middle box base;

[0027] Figure 6 for Figure 1 Another structural schematic diagram of the middle box base;

[0028] Figure 7 A cross-sectional view of the valve device provided in the first embodiment of this utility model;

[0029] Figure 8 A schematic diagram of the structure of the valve component in the second embodiment provided by this utility model;

[0030] Figure 9 This is a schematic diagram of the structure of the housing in the second embodiment provided by this utility model.

[0031] In the picture:

[0032] 100. Valve device;

[0033] 10. Fixed valve component; 11. Flow channel opening;

[0034] 20. Receptacle cavity;

[0035] 30. Box base; 31. Second opening; 32. Groove; 33. Abutment surface; 34. Insertion part; 35. Third opening; 36. Stop part;

[0036] 40. First positioning part; 41. Extension strip; 42. Limiting groove;

[0037] 50. Second positioning part; 51. First opening; 52. Positioning block;

[0038] 60. Drive shaft; 61. Limiting rod; 62. Bearing;

[0039] 70. Driver components;

[0040] 80. Moving valves. Detailed Implementation

[0041] 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.

[0042] 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.

[0043] like Figure 1-7 As shown, the first embodiment of this utility model provides a valve device 100, which includes a fixed valve member 10, a movable valve member 80, and a housing 30. The fixed valve member 10 has a flow channel opening 11, and the movable valve member 80 is rotatably connected to the fixed valve member 10 to cover and open the flow channel opening 11. The housing 30 is connected to the fixed valve member 10 and forms a receiving cavity 20 with the fixed valve member 10. The movable valve member 80 is disposed within the receiving cavity 20, and the housing 30 is provided with a stop portion 36 for limiting the rotational position of the movable valve member 80.

[0044] The flow channel 11 is used to connect the accommodating cavity 20 and the outside of the valve device 100. The valve device 100 has two states: open and closed. During the rotation of the moving valve member 80, when the moving valve member 80 covers the flow channel 11, preventing the accommodating cavity 20 from connecting to the outside of the valve device 100 through the flow channel 11, the valve device 100 is in the closed state. When the moving valve member 80 does not cover the flow channel 11, allowing the accommodating cavity 20 to connect to the outside of the valve device 100 through the flow channel 11, the valve device 100 is in the open state.

[0045] The fixed valve member 10 includes a first positioning portion 40, which extends along the circumferential direction of the fixed valve member 10. For example... Figure 4 As shown, the fixed valve element 10 is cylindrical, and the circumferential direction of the fixed valve element 10, that is, the direction surrounding the axis of the fixed valve element 10, is as follows: Figure 4 As shown on the X-axis. The housing 30 includes a second positioning part 50, which is configured to cooperate with the first positioning part 40 to at least define the position of the housing 30 relative to the fixed valve 10 in the circumferential direction of the fixed valve 10.

[0046] The first positioning part 40 and the second positioning part 50 cooperate with each other, which can be understood as the first positioning part 40 and the second positioning part 50 being connected together in some way, so that the relative position of the first positioning part 40 and the second positioning part 50 can remain unchanged at least in the circumferential direction of the fixed valve member 10. In this way, the relative position of the housing 30 and the fixed valve member 10 can remain unchanged at least in the circumferential direction of the fixed valve member 10.

[0047] In some cases, the first positioning part 40 and the second positioning part 50 cooperate to further define the relative positions of the housing 30 and the fixed valve 10 in the radial and / or axial directions of the fixed valve 10.

[0048] The first positioning part 40 and the second positioning part 50 cooperate to accurately position the relative position between the housing 30 and the fixed valve 10. When the rotation position of the moving valve 80 is limited by the housing 30, the accurate positioning between the housing 30 and the positioning valve can prevent the moving valve 80 from being out of control.

[0049] It should be noted that the valve device 100 also includes a drive shaft 60 connected to the movable valve component 80, and a drive assembly 70 for driving the drive shaft 60 to rotate, thereby driving the movable valve component 80 to rotate. The drive assembly 70 is connected to the housing 30. The valve device 100 may also include a bearing 62 disposed between the drive shaft 60 and the housing 30. Specifically, the housing 30 supports the drive shaft 60 to rotate through the bearing 62. The inner ring of the bearing 62 cooperates with the drive shaft 60, and the outer ring cooperates with the housing 30.

[0050] The drive assembly 70 can drive the moving valve 80 to rotate between a first position and a second position via the drive shaft 60. When the moving valve 80 is in the first position, the valve device 100 is in a closed state, and when the moving valve 80 is in the second position, the valve device 100 is in an open state.

[0051] In other embodiments, the flow passage 11 extends along the circumferential direction of the fixed valve member 10. The rotation of the movable valve member 80 between the first and second positions may not be for opening and closing the valve device 100, but rather to change the area of ​​the flow passage 11 covered by the movable valve member 80, thereby enabling the valve device 100 to perform a throttling function. The larger the area of ​​the flow passage 11 covered by the movable valve member 80, the better the throttling effect of the valve device 100. When the valve device 100 is used in a thermal management system, the refrigerant in the thermal management system can be switched from a high-pressure state to a low-pressure state under the throttling effect of the valve device 100 as it flows through the valve device 100.

[0052] When the valve device 100 is in use, the drive assembly 70 can first drive the movable valve 80 to rotate clockwise and counterclockwise until the movable valve 80 is limited by the stop 36 on the housing 30 and cannot rotate. In this way, the drive assembly 70 can know the actual limit position of the movable valve 80's rotation. Since the relative positions of the fixed valve 10, the housing 30, and the movable valve 80 are fixed, after the drive assembly 70 knows the actual limit position of the movable valve 80's rotation, it can accurately determine the position of the flow channel opening 11 on the movable valve 80, thereby driving the movable valve 80 to accurately cover the flow channel opening 11. To limit the rotation range of the movable valve 80, the valve device 100 may also include a limiting rod 61 connected to the drive shaft 60. When the movable valve 80 is in the first position and the second position, the limiting rod 61 contacts the stop 36 on the housing 30. In this way, the movable valve 80 can only rotate between the first position and the second position. The stop portion 36 is formed by protruding from the inner circumferential surface of the housing 30, and is integrally formed with the housing 30.

[0053] In other embodiments, when the movable valve 80 is in the first position and the second position, the stop portion 36 on the housing 30 may directly contact the movable valve 80, so that the movable valve 80 can only rotate between the first position and the second position.

[0054] In this embodiment, the first positioning part 40 is an extension strip 41 extending along the circumferential direction of the fixed valve member 10, and the second positioning part 50 is a first opening 51 that clamps the extension strip 41 along the circumferential direction of the fixed valve member 10. Figure 4 As shown, the extension bar 41 is an arc-shaped structure extending along the circumferential direction of the fixed valve member 10. The first opening 51 clamps the extension bar 41, that is, the extension bar 41 is located inside the first opening 51. The two opposite side walls of the first opening 51 respectively clamp the two ends of the extension bar 41 in the circumferential direction of the fixed valve member 10. In this way, the position of the housing 30 cannot move along the circumferential direction of the fixed valve member 10, thus limiting the relative position between the housing 30 and the fixed valve member 10.

[0055] Specifically, the extension strip 41 is located at the outer peripheral edge of the fixed valve member 10, and the length of the extension strip 41 extending along the circumferential direction of the fixed valve member 10 is the same as the length of the first opening 51 extending along the circumferential direction of the fixed valve member 10. It can be understood that both the extension strip 41 and the first opening 51 extend along an arc-shaped trajectory in the circumferential direction of the fixed valve member 10. The length of the extension strip 41 extending along the circumferential direction of the fixed valve member 10 is the arc length of the extension strip 41's trajectory, and the length of the first opening 51 extending along the circumferential direction of the fixed valve member 10 is the arc length of the first opening 51's trajectory.

[0056] It should be noted that in the actual production process, the extension length of the extension bar 41 and the extension length of the first opening 51 will not be exactly the same, and there will always be a deviation. Therefore, the above description that "the extension length of the extension bar 41 along the circumferential direction of the fixed valve member 10 and the extension length of the first opening 51 along the circumferential direction of the fixed valve member 10 are the same" covers the situation where there is a slight difference between the extension length of the extension bar 41 and the extension length of the first opening 51. Generally, the extension length of the extension bar 41 will be slightly smaller than the extension length of the first opening 51 so that the extension bar 41 can enter the first opening 51.

[0057] The extension bar 41 is located at the outer peripheral edge of the fixed valve member 10, which facilitates its engagement with the first opening 51. The extension bar 41 extends along the circumferential direction of the fixed valve member 10 for the same length as the first opening 51 extends along the circumferential direction of the fixed valve member 10, so that the first opening 51 can tightly clamp the extension bar 41, thereby strictly defining the relative position between the housing 30 and the fixed valve member 10.

[0058] The first opening 51 is also used to connect the accommodating cavity 20 and the outside of the housing 30. That is, the first opening 51 not only plays a role in cooperating with the extension bar 41 to limit the relative position between the housing 30 and the fixed valve 10, but also allows fluid outside the accommodating cavity 20 to flow into the accommodating cavity 20.

[0059] The housing 30 also has at least one second opening 31 connecting its exterior and the receiving cavity 20. The first opening 51 and the second opening 31 are arranged circumferentially on the housing 30, allowing fluid outside the receiving cavity 20 to enter the receiving cavity 20 from multiple directions through the first opening 51 and the second opening 31. The number of second openings 31 can be one, two, three, or even more. In this embodiment, the number of second openings 31 is specifically two.

[0060] In this embodiment, the lengths of the first opening 51 extending along the circumference of the fixed valve member 10 and the second opening 31 extending along the circumference of the fixed valve member 10 are different. Thus, when the housing 30 is connected to the fixed valve member 10, only the first opening 51 can engage with the extension bar 41, while the second opening 31 cannot. This arrangement forces the operator to correctly connect the housing 30 to the fixed valve member 10, achieving a "foolproof" effect.

[0061] The valve component 10 has a groove 32 extending along its circumference, such as... Figure 4As shown, the groove 32 is an incompletely closed arc shape, and the extension strip 41 extends along the circumference of the fixed valve member 10 to both ends of the groove 32. Part of the housing 30 is located within the groove 32. When manufacturing the fixed valve member 10, the groove 32 on the fixed valve member 10 can be cast together. The partial housing 30 located within the groove 32 can limit the relative position between the housing 30 and the fixed valve member 10.

[0062] In other embodiments, the extension strip 41 may also be formed by protruding from the surface of the valve 10.

[0063] The valve component 10 includes an abutting surface 33 that abuts against the housing 30 along the height direction of the valve device 100, and an extension portion 34 protruding from the abutting surface 33. The extension portion 34 extends into the housing 30 and is fitted with the inner circumferential surface of the housing 30. A first positioning portion 40 is formed on the extension portion 34.

[0064] The height direction of the valve device 100 is the same as the axial direction of the fixed valve member 10. The housing 30 abuts against the contact surface 33 along the height direction of the valve device 100, which can limit the relative position of the housing 30 and the fixed valve member 10 in the axial direction of the fixed valve member 10. The extension portion 34 is configured to mate with the inner circumferential surface of the housing 30. It can be understood that the outer circumferential diameter of the extension portion 34 and the inner circumferential diameter of the housing 30 are basically the same. Thus, when the extension portion 34 extends into the housing 30, the position of the housing 30 and the fixed valve member 10 in the radial direction of the fixed valve member 10 can be limited.

[0065] As can be seen, with the above configuration, the housing 30 abuts against the contact surface 33, and the extension part 34 matches the inner circumferential surface of the housing 30, all of which can limit the relative position of the fixed valve 10 and the housing 30.

[0066] The housing 30 can also be made by casting. After the moving valve 80 and the housing 30 are cast, the outer peripheral surface of the extension 34 and the inner peripheral surface of the housing 30 can be precision machined with a cutting tool so that the extension 34 and the inner peripheral surface of the housing 30 can be precisely fitted together. In this way, the housing 30 and the fixed valve 10 can achieve precise fit through simple machining.

[0067] like Figure 8-9 The valve device 100 shown is provided in the second embodiment of this utility model. The difference between this valve device 100 and the valve device 100 provided in the first embodiment is that, in the second embodiment: the first positioning part 40 is a limiting groove 42 formed in the fixed valve member 10, and the second positioning part 50 is a positioning block 52 formed in the housing 30 and cooperating with the limiting groove 42. When the housing 30 is connected to the fixed valve member 10, the positioning block 52 extends into the limiting groove 42, preventing the housing 30 from moving along the circumferential direction of the fixed valve member 10, thereby limiting the relative position between the housing 30 and the fixed valve member 10.

[0068] In this embodiment, the limiting groove 42 is located at the outer peripheral edge of the fixed valve 10, which facilitates the processing of the limiting groove 42. In order to cooperate with the limiting groove 42, the positioning block 52 is formed by protruding from the inner peripheral surface of the housing 30.

[0069] Furthermore, the housing 30 and the positioning block 52 are integrally formed and can be manufactured simultaneously through a casting process. This ensures the connection strength between the housing 30 and the positioning block 52 and also reduces the manufacturing cost of both.

[0070] In this embodiment, the housing 30 has a third opening 35 that connects the accommodating cavity 20 and the outside of the housing 30. Fluid outside the accommodating cavity 20 can flow into the accommodating cavity 20 through the third opening 35.

[0071] This utility model also provides a thermal management system, which includes the valve device 100 described above. The thermal management system can be used in equipment such as new energy vehicles, and the valve device 100 is an important component of the thermal management system for controlling the flow of coolant.

[0072] 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.

[0073] 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), comprising: a valve body (10) having a flow passage opening (11) formed therein; a valve element (80) rotatably connected to the valve body (10) to cover and uncover the flow passage opening (11); a housing (30) connected to the valve body (10) and surrounding the valve body (10) to form a receiving cavity (20) in which the valve element (80) is arranged, the housing (30) being provided with a stop portion (36) for limiting the rotation position of the valve element (80); characterized in that: the valve body (10) comprises a first positioning portion (40) extending along the circumferential direction of the valve body (10); the housing (30) comprises a second positioning portion (50) configured to cooperate with the first positioning portion (40) to limit the position of the housing (30) relative to the valve body (10) in the circumferential direction of the valve body (10).

2. Valve device (100) according to claim 1, characterized in that the first positioning portion (40) is an extension strip (41) extending along the circumferential direction of the valve body (10), and the second positioning portion (50) is a first opening (51) clamping the extension strip (41) along the circumferential direction of the valve body (10).

3. Valve device (100) according to claim 2, characterized in that the extension strip (41) is located at the outer peripheral edge of the valve body (10), and the length of the extension strip (41) extending along the circumferential direction of the valve body (10) is the same as the length of the first opening (51) extending along the circumferential direction of the valve body (10).

4. Valve device (100) according to claim 3, characterized in that the first opening (51) is also used to communicate the receiving cavity (20) and the outside of the housing (30), and the housing (30) is further provided with at least one second opening (31) communicating the outside and the receiving cavity (20), and the length of the first opening (51) extending along the circumferential direction of the valve body (10) is different from the length of the second opening (31) extending along the circumferential direction of the valve body (10).

5. The valve device (100) according to claim 2, characterized in that the valve body (10) is provided with a cut groove (32) extending along the circumferential direction thereof, the cut groove (32) is an arc shape which is not completely closed, the extension strip (41) extends to both ends of the cut groove (32) along the circumferential direction of the valve body (10), and part of the housing (30) is located in the cut groove (32).

6. The valve device (100) according to claim 1, characterized in that the first positioning portion (40) is a limiting groove (42) formed in the valve body (10), and the second positioning portion (50) is a positioning block (52) formed in the housing (30) and cooperating with the limiting groove (42).

7. Valve device (100) according to claim 6, characterized in that the limiting groove is located at the outer peripheral edge of the valve body (10), and the positioning block (52) is protruded from the inner peripheral surface of the housing (30).

8. The valve device (100) according to claim 1, characterized in that The valve fixing part (10) comprises an abutting surface (33) abutting against the box seat (30) along the height direction of the valve device (100), and a protruding part (34) protruding from the abutting surface (33), the protruding part (34) protruding into the box seat (30) and being arranged in cooperation with the inner circumferential surface of the box seat (30), and the first positioning part (40) is formed on the protruding part (34).

9. The valve device (100) according to claim 6, characterized in that The box seat (30) and the positioning block (52) are integrally formed.

10. A thermal management system characterized by, The valve device (100) according to any one of claims 1-9.

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