Control valve assembly and fluid control device

Abstract

The invention discloses a control valve assembly and a fluid control device.The control valve assembly comprises a valve shell assembly and a valve element assembly, the valve shell assembly is provided with a valve cavity, a normal opening and a gating opening, the normal opening comprises a first opening and a second opening, at least part of the valve element assembly is located in the valve cavity, and the valve element assembly comprises a first valve element and a second valve element which are in transmission connection; at least part of the first valve element and at least part of the second valve element are arranged in the axial direction of the valve element assembly, the first valve element is provided with a first communicating opening, the first communicating opening is located in the axial end, back to the second valve element, of the first valve element, and the second valve element is provided with a second communicating opening, and the second communicating opening is located in the axial end, back to the first valve element, of the second valve element. In any working mode of the control valve assembly, the first communication port is communicated with the first port, the second communication port is communicated with the second port, the first port can be communicated with the gating port through the first valve element, and the second port can be communicated with the gating port through the second valve element. In this way, the control valve assembly is provided with at least two normally-open ports.

Description

Technical Field

[0001] The invention relates to the field of fluid control, and in particular to a control valve assembly and a fluid control device. Background Art

[0002] Typically, a control valve assembly is used in a fluid control device to control multiple flow paths in the fluid control device. When at least two flow paths in the fluid control device are normally open flow paths, that is, fluid must always pass through the at least two flow paths in any mode, how to design a control valve assembly with a simple structure to meet the requirements of the above-mentioned working mode is an urgent problem to be solved. Summary of the invention

[0003] The object of the present invention is to provide a control valve assembly and a fluid control device, which has a simple structure and can make the first port and the second port as normally open ports, so that the flow path connected to the first port and the flow path connected to the second port in the fluid control device can be used as normally open flow paths, so as to meet the working mode requirements of the fluid control device.

[0004] On the one hand, an embodiment of the present invention provides a control valve assembly, which includes a valve housing assembly and a valve core assembly. The valve housing assembly has a valve cavity, a normally open port and a gate port, the normally open port includes a first port and a second port, at least a portion of the valve core assembly is located in the valve cavity, the valve core assembly includes a first valve core and a second valve core that are transmission-connected, at least a portion of the first valve core and at least a portion of the second valve core are arranged axially along the valve core assembly, the first valve core has a first conduction port, the first conduction port is located at an axial end of the first valve core that is away from the second valve core, the second valve core has a second conduction port, the second conduction port is located at an axial end of the second valve core that is away from the first valve core; in any working mode of the control valve assembly, the first conduction port is connected to the first port, the second conduction port is connected to the second port, the first port can be connected to the gate port through the first valve core, and the second port can be connected to the gate port through the second valve core.

[0005] According to the control valve assembly provided by the embodiment of the present invention, the first valve core has a first conduction port, and the first conduction port is located at the axial end of the first valve core away from the second valve core, and the second valve core has a second conduction port, and the second conduction port is located at the axial end of the second valve core away from the first valve core. In any working mode of the control valve assembly, the first conduction port is connected with the first port, and the second conduction port is connected with the second port, so that the first port and the second port become normally connected ports, and the setting positions of the first conduction port and the second conduction port are simple, so as to simplify the structure of the control valve assembly; further, by rotating the valve core assembly so that the first port and the second port are selectively connected with different selection ports, it is convenient to realize the control function of the control valve assembly on multiple flow paths.

[0006] On the other hand, an embodiment of the present invention provides a fluid control device, which includes a fluid part and the above-mentioned control valve assembly, at least a portion of the fluid part is located in the valve housing assembly, the fluid control device has a first flow path opening and a second flow path opening, the first flow path opening or the second flow path opening is connected to the channel of the fluid part, the first flow path opening is connected to the first port in the control valve assembly, and the second flow path opening is connected to the second port in the control valve assembly.

[0007] According to the fluid control device provided by an embodiment of the present invention, at least a portion of the fluid part is located in the valve housing assembly, and the first flow path opening or the second flow path opening is connected to the channel of the fluid part, so as to improve the integration of the fluid control device, and the first flow path opening is connected to the first port in the control valve assembly, and the second flow path opening is connected to the second port in the control valve assembly, so as to make the first flow path opening and the second flow path opening serve as normally-open flow paths, so as to meet the working mode requirements of the fluid control device. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 is a schematic diagram of the three-dimensional structure of a control valve assembly provided by an embodiment of the present invention;

[0009] Figure 2 yes Figure 1 A schematic cross-sectional view of the control valve assembly at a first position;

[0010] Figure 3 is a schematic cross-sectional structural diagram of a fluid control device provided by an embodiment of the present invention;

[0011] Figure 4 yes Figure 2 A schematic diagram of the front structure of a control valve assembly is shown in FIG.

[0012] Figure 5 yes Figure 4 A schematic diagram of the cross-sectional structure of the control valve assembly along the AA direction shown in FIG.

[0013] Figure 6 yes Figure 4 A schematic diagram of the cross-sectional structure of the control valve assembly along the BB direction shown in FIG.

[0014] Figure 7 yes Figure 2 A schematic diagram of a portion of the structure of the valve housing assembly at one angle is shown in FIG.

[0015] Figure 8 yes Figure 2 A schematic diagram of a portion of the valve housing assembly at another angle is shown;

[0016] Fig. 9 yes Figure 2 A three-dimensional structural schematic diagram of the valve core assembly shown in FIG.

[0017] Fig.10 yes Fig. 9 A schematic diagram of the cross-sectional structure of the valve core assembly shown in FIG.

[0018] Fig.11 yes Figure 2 A schematic diagram of a three-dimensional structure of a partition is shown in FIG.

[0019] Fig.12 yes Figure 2 A schematic diagram of the structure of the control valve assembly in the first working mode shown in FIG.

[0020] Fig.13 yes Figure 2 A schematic diagram of the structure of the control valve assembly in the second working mode shown in FIG.

[0021] Fig.14 yes Figure 2 A schematic diagram of the structure of the control valve assembly in the third working mode shown in FIG.

[0022] Fig.15 yes Figure 2 A schematic structural diagram of the control valve assembly in the fourth working mode shown in FIG.

[0023] Fig.16 yes Figure 2 A schematic diagram of the structure of the control valve assembly in the fifth working mode shown in FIG.

[0024] Fig.17 yes Figure 2 Schematic diagram of the structure of the control valve assembly in the sixth working mode.

[0026] 1. Control valve assembly; XX, axis; 107, drive chamber; 105, port; 10, valve housing assembly; 110, valve chamber; 111, selection port; 101, first valve chamber; 102, first selection port group; 103, normal port; 104, second valve chamber; 106, second selection port group; P1, first port; P2, second port; P3, third port; P4, fourth port; P5, fifth port; P6, sixth port; P7, seventh port; P8, eighth port; M1, first port; M2, second port; M3, third port; M4, fourth port; M5, fifth port; 11, top wall; 12, bottom wall; 13, side wall; 14, first channel; 15, connecting pipe; 16, first housing; 20, valve core assembly; S1, first One end; S2, the second end; 21, the first conducting port; 22, the second conducting port; 23, the transmission limit portion; 25, the first valve core; 251, the first circumferential wall portion; 252, the third conducting port; 26, the second valve core; 261, the second circumferential wall portion; 262, the fourth conducting port; 27, the matching portion; 31, the driving assembly; 32, the transmission shaft; 33, the partition; 331, the limit portion; 332, the blocking portion; 333, the supporting portion; 334, the through hole portion; 34, the second shell portion; 35, the third shell portion; 2, the fluid control device; 40, the fluid part; 411, the first flow path opening; 412, the second flow path opening; 42, the pump assembly; 422, the stator assembly; 423, the rotor assembly; 424, the bearing assembly; 425, the impeller assembly. DETAILED DESCRIPTION

[0027] The features and exemplary embodiments of various aspects of the present invention will be described below. In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. In this article, relational terms such as "first" and "second" are only used to distinguish one component with the same name from another, and do not necessarily require or imply any such actual relationship or order between these components.

[0028] like Figures 1 to 11 As shown, an embodiment of the present invention provides a control valve assembly and a fluid control device, which can be used in a vehicle thermal management system, specifically in a coolant circulation system, and can perform flow isolation, conduction and switching functions for the thermal management system.

[0029] like Figure 3As shown, the fluid control device 2 provided in the embodiment of the present invention includes a fluid component 40 and a control valve assembly 1, the control valve assembly 1 has a normal port 103 and a selection port 111, and the control valve assembly 1 includes a valve housing assembly 10 and a valve core assembly 20, and at least a portion of the valve core assembly 20 is located in the valve housing assembly 10. In some embodiments, at least a portion of the fluid component 40 and the valve core assembly 20 are located in the same valve housing assembly 10. Compared with separately arranging the control valve assembly and the fluid component, the fluid control device 2 provided in the embodiment of the present invention has a higher degree of integration.

[0030] In the embodiment of the present invention, the valve core assembly 20 rotates, and the rotation of the valve core assembly 20 enables any normal port 103 to communicate with at least one selection port 111. Specifically, the normal port 103 includes a first port P1 and a second port P2, the valve housing assembly 10 has a first selection port group 102 and a second selection port group 105, the first selection port group 102 and the second selection port group 105 are arranged along the extension direction of the axis XX of the valve core assembly 20, the first selection port group 102 has at least two selection ports, the second selection port group 105 has at least two selection ports 111, the valve core assembly 20 includes a first valve core 25 and a second valve core 26 connected by transmission, the first port P1 can be communicated with at least one selection port in the first selection port group 102 through the first valve core 25, and the second port P2 can be communicated with at least one selection port in the second selection port group 105 through the second valve core 26.

[0031] Please read further Figure 3 When the control valve assembly 1 is applied to the fluid control device 2, the fluid control device 2 has a first flow path opening 411 and a second flow path opening 412. The first flow path opening 411 or the second flow path opening 412 is connected to the channel of the fluid component 40. For example, in this embodiment, the first flow path opening 411 is connected to the channel of the fluid component 40, and the first flow path opening 411 is connected to the first port P1 in the control valve assembly 1, and the second flow path opening 412 is connected to the second port P2 in the control valve assembly 1. Through the above arrangement, it is convenient to make the first flow path opening 411 and the second flow path opening 412 as a normally open flow path, so as to meet the working mode requirements of the fluid control device 2.

[0032] It should be noted that, in this article, the normal port 103 means that the communication port can be connected with the corresponding conduction port in any working mode, so that the communication port is always in a connected state; the selection port means that in some working modes, the selection port can be in a connected state, and in other working modes, the selection port can be in a closed state; or the selection port 102 can be selected by different conduction ports. The first flow path port 411 can be located on the fluid part 40, or the first flow path port 411 can be located on the connecting block connected between the fluid part 40 and the control valve assembly 1, or the first flow path port 411 can overlap with the first port P1, and the first flow path port 411 can be located on the valve housing assembly 10. The second flow path port 412 can overlap with the second port P2, or the second flow path port 412 can be located on the connecting pipe portion 15 connected to the second port P2.

[0033] like Figure 3 As shown, in some embodiments, the fluid component 40 includes a pump assembly 42, and the first flow path opening 411 is located in the pump assembly 42. At this time, the first flow path opening 411 can be used as an inlet or outlet of the pump assembly 42. Optionally, the first flow path opening 411 can be embedded in the valve core assembly 20. At least part of the pump assembly 42 and at least part of the valve core assembly 20 are integrated in the same valve housing assembly 10, so that the fluid flowing out of the valve core assembly 20 can directly enter the pump assembly 42, which is convenient for improving the integration of the fluid control device 2 and is beneficial for reducing the flow resistance of the fluid.

[0034] Further, the pump assembly 42 includes a stator assembly 422, a rotor assembly 423 and an impeller assembly 425, and at least a portion of the impeller assembly 425 can be integrated into the valve housing assembly 10. At least one of the stator assembly 422 and the rotor assembly 423 can also be integrated into the valve housing assembly 10. Figure 3 As shown, in the embodiment of the present invention, the stator assembly 422, the rotor assembly 423 and the impeller assembly 425 of the pump assembly are all integrated in the valve housing assembly 10, so as to improve the integration of the fluid control device 2, reduce the number of parts, and simplify the structure.

[0035] In order to realize the requirements of various working modes of the fluid control device 2, such as Figures 1 to 11 As shown, an embodiment of the present invention further provides a control valve assembly 1 , which can be applied to the above-mentioned fluid control device 2 .

[0036] Specifically, the valve housing assembly 10 of the control valve assembly 1 has a valve cavity 110, and at least part of the valve core assembly 20 is located in the valve cavity 110. Specifically, the valve cavity 110 includes a first valve cavity 101 and a second valve cavity 104, at least part of the first valve cavity 101 and at least part of the second valve cavity 104 are arranged along the axial direction of the valve core assembly 20, and the valve core assembly 20 includes a first valve core 25 and a second valve core 26 that are transmission-connected, at least part of the first valve core 25 is located in the first valve cavity 101, and at least part of the second valve core 26 is located in the second valve cavity 104. The valve core assembly 20 can rotate around the axis XX, and the extension direction of the axis XX is parallel to or coincides with the axial direction of the valve core assembly 20. The valve core assembly 20 includes a first conducting port 21 and a second conducting port 22 which are spaced apart along the extension direction of the axis XX. The first conducting port 21 and the second conducting port 22 are both located at the axial ends of the valve core assembly 20. Optionally, the wall defining the first conducting port 21 and the wall defining the second conducting port 22 can surround the axis XX.

[0037] In specific implementation, Figure 2 and Figure 3 As shown, the extension line of the axis XX passes through the center of the first conduction port 21 and the center of the second conduction port 22; or at least one of the first conduction port 21 and the second conduction port 22 is an annular structure, that is, at least one of the inner circumferential wall surface and the outer circumferential wall surface of the first conduction port 21 is defined as a circular or arc-shaped or other closed structure surrounding the entire circumference of the axis XX, and at least one of the inner circumferential wall surface and the outer circumferential wall surface of the second conduction port 22 is defined as a circular or arc-shaped or other closed structure surrounding the entire circumference of the axis XX. Through the above arrangement, the positions of at least part of the first conduction port 21 and at least part of the second conduction port 22 remain unchanged at any rotation position of the valve core assembly 20. So that in any working mode of the control valve assembly 1, the first conduction port 21 is connected with the first port P1, the second conduction port 22 is connected with the second port P2, and the first port P1 and the second port P2 are selectively connected with different selection ports through the valve core assembly 20. Through the above arrangement, the connection relationship between the first conduction port 21 and the first port P1, and the connection relationship between the second conduction port 22 and the second port P2 remain unchanged, so that the first port P1 and the second port P2 can be made into normally connected ports, so as to meet the requirements of the working mode of the fluid control device 2. The shapes and positions of the first conduction port 21 and the second conduction port 22 can be determined according to user requirements, for example, the first conduction port 21 and the second conduction port 22 can be eccentrically arranged with respect to the axis XX, as long as the corresponding normally connected ports 103 can be connected.

[0038] In a specific implementation, the first valve core 25 has a first conduction port 21, which is located at the axial end of the first valve core 25 facing away from the second valve core 26, the second valve core 26 has a second conduction port 22, which is located at the axial end of the second valve core 26 facing away from the first valve core 25, the first selection port group 102 is correspondingly arranged with the first valve core 25, and the second selection port group 105 is correspondingly arranged with the second valve core 26. In any working mode of the control valve assembly 1, the first conduction port 21 is connected with the first port P1, and the second conduction port 22 is connected with the second port P2. The first port P1 can be connected with at least one selection port in the first selection port group 102 through the first valve core 25, and the second port P2 can be connected with at least one selection port in the second selection port group 105 of the second valve core 26.

[0039] like Fig. 9 and Fig.10 As shown, in some embodiments, the valve core assembly 20 includes a first end S1 and a second end S2, and the first end S1 and the second end S2 are arranged along the extension direction of the axis XX of the valve core assembly 20, the first end S1 is located on one side of the axial direction of the valve core assembly 20, and the second end S2 is located on the other side of the axial direction of the valve core assembly 20, specifically, the first end S1 is located on the side of the first valve core 25 away from the second valve core 26, and the second end S2 is located on the side of the second valve core 26 away from the first valve core 25. The first conduction port 21 is located at the first end S1, and the second conduction port 22 is located at the second end S2. Through the above arrangement, it is conducive to simplifying the structure, and it is convenient to make the first conduction port 21 always communicate with the first port P1, and the second conduction port 22 always communicate with the second port P2.

[0040] And / or, the valve housing assembly 10 includes a first end wall portion 11, a second end wall portion 12 and a side wall portion 13, the first end wall portion 11 and the second end wall portion 12 are arranged along the axial direction of the valve housing assembly 10, the first end wall portion 11 and the second end wall portion 12 can limit the axial position of the valve core assembly 20, at least part of the side wall portion 13 is connected between the first end wall portion 11 and the second end wall portion 12, one of the first end wall portion 11 and the second end wall portion 12 and the side wall portion 13 can be an integral structure, and the other can be welded to the side wall portion 13, or the first end wall portion 11 and the second end wall portion 12 can be welded to the side wall portion 13. Optionally, the first end wall portion 11 defines at least a portion of the top wall portion of the first valve cavity 101, and the second end wall portion 12 defines at least a portion of the bottom wall portion of the second valve cavity 104. The first port P1 is located at the first end wall portion 11, the second port P2 is located at the second end wall portion 12, and the gate port is located at the side wall portion 13. Through the above arrangement, it is convenient to simplify the structure of the control valve assembly 1. When the control valve assembly 1 is applied to the fluid control device 2, it is convenient to make the first port P1 directly communicate with the first flow path port 411 (the pump port of the pump assembly 42), reduce the length of the flow path between the pump assembly 42 and the valve core assembly 20, and reduce the flow resistance.

[0041] Combination Figure 2 , Figure 3 and Fig.10 As shown, in order to realize the rotation of the valve core assembly 20, in some embodiments, the valve core assembly 20 includes a transmission limiter 23, and along the extension direction of the axis XX, the transmission limiter 23 is located between the first end S1 and the second end S2; the control valve assembly 1 also includes a transmission shaft 32, and the transmission shaft 32 passes through the first port P1 or the second port P2 and is limitedly arranged and transmission-connected with the transmission limiter 23. For example Figure 2 In the embodiment, the transmission shaft 32 passes through the first port P1 and has an interference fit with the transmission limit part 23, which can reduce or avoid the separation of the transmission shaft 32 and the transmission limit part 23. Optionally, one of the transmission shaft 32 and the transmission limit part 23 includes a protrusion, and the other includes a groove, and the protrusion is embedded in the groove. In other embodiments, the transmission shaft 32 and the transmission limit part 23 can be connected by a key or by providing a non-circular hole or other special-shaped hole structure on the transmission limit part 23, and providing a non-circular curved surface or other special-shaped surface structure on the outer surface of the transmission shaft 32, and the special-shaped hole structure cooperates with the special-shaped surface structure to realize the transmission connection between the transmission shaft 32 and the transmission limit part 23, and at this time, the transmission shaft 32 and the transmission limit part 23 can be clearance-fitted.

[0042] Optionally, the transmission limit portion 23 can be located on the first valve core 25, and further, the first valve core 25 and the second valve core 26 are interference fit, and one of the first valve core 25 and the second valve core 26 is nested inside the other, so as to realize the transmission connection between the first valve core 25 and the second valve core 26, or the first valve core 25 and the second valve core 26 can also be connected to each other through other structures, such as pins, splines, special-shaped hole structures and special-shaped surface structures, etc., and the first valve core 25 and the second valve core 26 can be clearance fit. The embodiment of the present invention does not limit the transmission connection method of the first valve core 25 and the second valve core 26, as long as power can be transmitted between the two.

[0043] Furthermore, when the control valve assembly 1 is applied to the fluid control device 2, and the fluid control device 2 includes a pump assembly 42, the transmission shaft 32 can be reused as a pump shaft, and the transmission shaft 32 at this time includes a metal material. In order to reduce the wear on the transmission limit portion 23, in some embodiments, the control valve assembly 1 may also include a sleeve structure, and the sleeve structure is sleeved between the outer peripheral wall of the transmission shaft 32 and the inner peripheral wall of the transmission limit portion 23. The rotor assembly 423 of the pump assembly 42 is located on the outer peripheral side of the transmission shaft 32. In order to make the rotor assembly 423 of the pump assembly 42 and the valve core assembly 20 of the control valve assembly 1 rotate independently, in some embodiments, the control valve assembly 1 is combined with the valve core assembly 20 to rotate independently. Figure 3 As shown, the pump assembly 42 further includes a bearing assembly 424 , which is located between the rotor assembly 423 and the transmission shaft 32 along the radial direction of the rotor assembly 423 .

[0044] Please read further Figure 2 and Figure 3 In order to realize the rotation of the valve core assembly 20, in some embodiments, the control valve assembly 1 further includes a drive assembly 31, at least part of which is located on one side of the axial direction of the valve core assembly 20, and the drive assembly 31 is connected to the transmission shaft 32 in a transmission manner. The drive assembly 31 includes a motor or a combination of a motor and a gear, and the transmission shaft 32 is driven to rotate by the rotation of the motor. The first valve core 25 is connected to the drive assembly 31 in a transmission manner through the transmission shaft 32, so that the drive assembly 31 drives the first valve core 25 to rotate through the transmission shaft 32, thereby driving the second valve core 26 to rotate. In this article, the transmission connection between two components means that power can be transmitted between the two components, and the two components can be interference fit or an integrated structure or realize power transmission through a third component.

[0045] Further, the control valve assembly 1 further comprises a drive chamber 107, and the drive chamber 107 and the first valve chamber 101 are fluidically isolated from each other, that is, the fluids between the drive chamber 107 and the first valve chamber 101 do not interact with each other. Part of the transmission shaft 32 and at least part of the drive assembly 31 are located in the drive chamber 107, the first port P1 is located between the second port P2 and the drive assembly 31, and the transmission shaft 32 passes through the first port P1 and is limitedly arranged and transmission-connected with the transmission limit portion 23, for example, the transmission shaft 32 and the transmission limit portion 23 are interference-fitted or are an integrated structure.

[0046] In order to isolate the drive chamber 107 from the valve chamber 101 by fluid, the valve housing assembly 10 includes a first housing 16, wherein the side wall portion 13 and the first end wall portion 11 can be located in the first housing 16, the first housing 16 can form at least part of the pump chamber, and the impeller assembly 425 is located in the pump chamber. The control valve assembly 1 also includes a second housing portion 34 and a third housing portion 35, at least part of the second housing portion 34 is located on one side of the axial direction of the first housing 16, and the second housing portion 34 and the first housing 16 are mutually buckled and sealed, at least part of the third housing portion 35 is located in the space defined by the first housing 16 and the second housing portion 34, and the third housing portion 35 is sealed with the inner wall of the first housing 16, and the second housing portion 34, the first housing 16 and the third housing portion 35 can all form part of the wall of the drive chamber 107.

[0047] In a specific implementation, part of the transmission shaft 32 is located on the inner circumference side of the third housing portion 35, and the outer circumferential surface of the transmission shaft 32 and the inner circumferential surface of the third housing portion 35 are sealed by a sealing member. Figure 2 As shown, when the control valve assembly 1 is a separate valve structure, the third housing portion 35 can be separately provided and sealed inside the first housing 16. Figure 3 As shown, when the control valve assembly 1 and the pump assembly 42 are integrated, at least part of the pump assembly 42 is located in the first shell 16, the stator assembly 422 of the pump assembly 42 can be integrally injection molded inside the third shell portion 35, and the third shell portion 35 can also be reused as an isolation cover structure of the pump assembly 42, and the rotor assembly 423 is located on the inner circumference of the third shell portion 35 to prevent the fluid from entering the stator assembly 422 and damaging the coil assembly in the stator assembly 422.

[0048] like Figure 2As shown, when the control valve assembly 1 is a separate structure, the valve housing assembly 10 may further include a first channel portion 14, the channel in the first channel portion 14 can be connected to the first port P1, and along the axial direction of the control valve assembly 1, at least part of the first channel portion 14 is located between the drive assembly 31 and the valve core assembly 20. Through the first channel portion 14, the fluid can flow into the first port P1, or flow out from the first port P1. When the control valve assembly 1 is integrated with the pump assembly 42, the first flow path port 411 is connected to the first port P1, so that the fluid can flow into the first flow path port 411 from the first port P1 or from the conduction cavity connected to the first port P1, and then flow out from the corresponding outlet of the pump assembly 42 under the action of the impeller assembly 425.

[0049] Further, in some embodiments, the first valve core 25 includes a first circumferential wall portion 251, the first circumferential wall portion 251 has a third conduction port 252, the third conduction port 252 is communicated with the first conduction port 21, and the second valve core 26 includes a second circumferential wall portion 261, the second circumferential wall portion 261 has a fourth conduction port 262, and the fourth conduction port 262 is communicated with the second conduction port 22; in any working mode of the control valve assembly 1, the third conduction port 252 can be communicated with at least one gate port in the first gate port group 102, and the fourth conduction port 262 can be communicated with at least one gate port in the second gate port group 105. Optionally, the first circumferential wall portion 251 can be a spherical structure or a cylindrical structure, and the second circumferential wall portion 261 can be a spherical structure or a cylindrical structure.

[0050] Combination Figures 3 to 11 As shown, in some embodiments, the valve housing assembly 10 includes a first housing 16 and a partition 33, the partition 33 is sealed and arranged in the first housing 16, the first housing 16 defines a first valve cavity 101 and a part of the wall of the second valve cavity 104, one side of the partition 33 in the thickness direction defines a part of the wall of the first valve cavity 101, and the other side of the partition 33 in the thickness direction defines a wall of the second valve cavity 104; at least one of the first valve core 25 and the second valve core 26 passes through the partition 33 and is sealed with the partition 33. In this article, the partition 33 can be welded and sealed with the first housing 16, and the first valve core 25 passes through the partition 33 and is sealed with the partition 33.

[0051] In some embodiments, the first housing 16 includes a top wall portion 11 and a side wall portion 13, the first port P1 is located at the top wall portion 11, the selection port is located at the side wall portion 13, the top wall portion 11 defines a part of the wall portion of the first valve cavity 101, the partition 33 is relatively fixedly connected to the side wall portion 13 and is sealed; the radial dimension of the first valve core 25 is smaller than the radial dimension of the second valve core 26. Through the above arrangement, it is convenient to reduce the number of parts of the control valve 1, and it is convenient to assemble the first valve core 25 and the second valve core 25. Specifically, the first valve core 25 can be installed in the accommodating cavity of the first housing 16 first, and then the partition 33 is installed and welded to the first housing 16. At this time, the partition is sealed with the first valve core 25, and finally the second valve core 25 is installed in the accommodating cavity of the first housing 16 and is in transmission connection with the first valve core 25.

[0052] In some embodiments, when the control valve assembly 1 further includes a drive shaft 32, the drive shaft 32 passes through the first port P1 and is in transmission connection with at least one of the first valve core 25 and the second valve core 26. To limit the rotation position of the valve core assembly 20, as shown in FIG. Fig.11 As shown, the partition 33 includes a limiting portion 331, and the side of the first valve core 25 facing the second valve core 26 or the side of the second valve core 26 facing the first valve core 25 includes a matching portion 27. At the rotation limit position of the valve core assembly 20, the limiting portion 331 abuts against the matching portion 27 to limit the rotation limit position of the valve core assembly 20.

[0053] In a specific implementation, the partition 33 includes a limiting portion 331, a blocking portion 332, a supporting portion 333 and a through hole portion 334. The blocking portion 332 is welded to the first shell 16. The limiting portion 331 protrudes from the blocking portion 332 on one side along the thickness direction of the blocking portion 332, and the supporting portion 333 protrudes from the blocking portion 332 on the other side along the thickness direction of the blocking portion 332. The supporting portion 333 can support the sealing assembly. The through hole portion 334 includes a through hole and a surface defining the through hole, and the through hole portion 334 is located at the blocking portion 332. The first valve core 25 passes through the through hole portion 334, and the matching portion 27 is located at the second valve core 26. When the first valve core 25 drives the second valve core 26 to rotate, when the matching portion 27 abuts against the limiting portion 331, the first valve core 25 stops rotating in the original direction.

[0054] In order to improve the cross-flow between the fluids conducted by the first valve core 25 and the second valve core 26, the control valve assembly 1 further comprises a partition 33, the outer peripheral side of the partition 33 is sealed with the valve housing assembly 10, the inner peripheral side of the partition 33 is sealed with the valve core assembly 20, the third conduction port 252 and the fourth conduction port 262 are respectively arranged on both sides of the thickness direction of the partition 33, at least part of the first valve core 25 is located on one side of the thickness direction of the partition 33, and at least part of the second valve core 26 is located on the other side of the thickness direction of the partition 33, as shown in FIG. Figure 2 and Figure 3As shown, the main part of the first valve core 25 is located on one side of the thickness direction of the partition 33, the protruding shaft part of the first valve core 25 passes through the partition 33 and is located on the other side of the thickness direction of the partition 33 and is transmission-connected to the second valve core 26, and a seal is arranged between the protruding shaft part of the first valve core 25 and the partition 33.

[0055] To limit the rotational position of the valve core assembly 20, in some embodiments, the first valve core 25 or the second valve core 26 has a limit block, and the partition 33 has a matching portion. Optionally, when the valve core assembly 20 rotates to the stroke limit position, the limit block and the matching portion can abut.

[0056] In some embodiments, the gate port 111 in the first gate port group 102 includes a third gate port P3 and a fourth gate port P4, and the gate port 111 in the second gate port group 105 includes a fifth gate port P5 and a sixth gate port P6. Figure 3 , Figure 5 and Figure 6 As shown, the valve housing assembly 10 also has a first port M1, a second port M2, a third port M3 and a fourth port M4. In the valve housing assembly 10, the first port M1 is connected to the first port P1, the second port M2 is connected to the second port P2, the third port M3 is connected to both the third port P3 and the fifth port P5, and the fourth port M4 is connected to both the fourth port P4 and the sixth port P6. Through the above arrangement, the third port M3 can be connected to the first port P1 through the third port P3 and the first valve core 25, or the third port M3 can be connected to the second port P2 through the fifth port P5 and the second valve core 26. The fourth port M4 can be connected to the second port P2 through the sixth port P6 and the second valve core 26, or the fourth port M4 can be connected to the first port P1 through the fourth port P4 and the first valve core 25.

[0057] Further, in some embodiments, the first selection port group 102 also includes a seventh port P7, the second selection port group 105 also includes an eighth port P8, and the valve housing assembly 10 also has a fifth port M5. In the valve housing assembly 10, the fifth port M5 is connected to the seventh port P7 and the eighth port P8; the fifth port M5 can be connected to the first port P1 through the seventh port P7 and the first valve core 25, or the fifth port M5 can be connected to the second port P2 through the eighth port P8 and the second valve core 26.

[0058] Based on this, in some embodiments, the control valve assembly 1 has at least one of the following working modes:

[0059] like Fig.12As shown, in the first working mode of the control valve 1, the third port M3 is connected to the first port M1 through the third port P3, the first valve core 25, and the first port P1, the fourth port M4 is connected to the second port M2 through the sixth port P6, the second valve core 26, and the second port P2, the first valve core 25 closes the seventh port P7, and the second valve core 26 closes the eighth port P8, and the fifth port M5 is closed at this time.

[0060] like Fig.13 As shown, in the second working mode of the control valve 1, the fifth port M5 is connected to the first port M1 through the seventh port P7, the first valve core 25, and the first port P1, the fourth port M4 is connected to the second port M2 through the sixth port P6, the second valve core 26, and the second port P2, the first valve core 25 closes the third port P3, and the second valve core 26 closes the fifth port P5. At this time, the third port M3 is closed.

[0061] like Fig.14 As shown, in the third working mode of the control valve 1, the third port M3 is connected to the first port M1 through the third port P3, the first valve core 25, and the first port P1, the fifth port M5 is connected to the first port M1 through the seventh port P7, the first valve core 25, and the first port P1, and the fourth port M4 is connected to the second port M2 through the sixth port P6, the second valve core 26, and the second port P2.

[0062] like Fig.15 As shown, in the fourth working mode of the control valve 1, the third port M3 is connected to the second port M2 through the fifth port P5, the second valve core 26, and the second port P2, the fifth port M5 is connected to the second port M2 through the eighth port P8, the second valve core 26 and the second port P2, and the fourth port M4 is connected to the first port M1 through the fourth port P4, the first valve core 25, and the first port P1.

[0063] like Fig.16 As shown, in the fifth working mode of the control valve 1, the fourth port M4 is connected to the first port M1 through the fourth port P4, the first valve core 25, and the first port P1, the fifth port M5 is connected to the second port M2 through the eighth port P8, the second valve core 26, and the second port P2, the first valve core 25 closes the third port P3, the second valve core 26 closes the fifth port P5, and the third port M3 is closed at this time.

[0064] like Fig.17 As shown, in the sixth working mode of the control valve, the third port M3 is connected to the second port M2 through the fifth port P5, the second valve core 26, and the second port P2, the fourth port M4 is connected to the first port M1 through the fourth port P4, the first valve core 25, and the first port P1, the first valve core 25 closes the seventh port P7, the second valve core 26 closes the eighth port P8, and the fifth port M5 is closed at this time.

[0065] More working modes can be realized by the rotation of the valve core assembly 20. For example, when the third port P3, the fourth port P4 and the seventh port P7 are evenly arranged on the side wall portion 13 along the circumferential direction of the valve core assembly 20; the fifth port P5, the sixth port P6 and the eighth port P8 are evenly arranged on the side wall portion 13 along the circumferential direction of the valve core assembly 20, the control valve assembly 1 can also have a seventh working mode, in which the third port M3 is connected to the first port M1, and the fourth port M4 and the fifth port M5 are connected to the second port M2 at the same time; in an eighth working mode, the third port M3 is connected to the first port M1, and the fifth port M5 is connected to the second port M2; in a ninth working mode, the fifth port M5 is connected to the first port M1, and the fourth port M4 and the third port M3 are connected to the second port M2 at the same time; in a tenth working mode, the fifth port M5 is connected to the first port M1, and the second port M2 is connected to the third port M3.

[0066] In summary, according to the control valve assembly 1 provided in the embodiment of the present invention, the first valve core 25 has a first conduction port 21, and the first conduction port 21 is located at the axial end of the first valve core 25 facing away from the second valve core 26, and the second valve core 26 has a second conduction port 22, and the second conduction port 22 is located at the axial end of the second valve core 26. In any working mode of the control valve assembly 1, the first conduction port 21 is connected with the first port P1, and the second conduction port 22 is connected with the second port P2, so as to make the first port P1 and the second port P2 become normally connected ports; further, by rotating the valve core assembly 20 so that the first port P1 and the second port P2 are selectively connected with different selection ports, it is convenient to realize the control function of the control valve assembly 1 on multiple flow paths.

[0067] It should be noted that the above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention, such as the directional definitions of "front", "back", "left", "right", "up" and "down". Although the present invention has been described in this specification with reference to the above embodiments, it should be understood by those skilled in the art that the present invention can still be modified, combined or replaced by equivalents, and all technical solutions and improvements thereof that do not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A control valve assembly (1), characterized in that: The control valve assembly (1) comprises a valve housing assembly (10) and a valve core assembly (20); the valve housing assembly (10) comprises a valve cavity (110), a normally open port (103) and a selector port (111); the normally open port (103) comprises a first port (P1) and a second port (P2); at least a portion of the valve core assembly (20) is located in the valve cavity (110); the valve core assembly (20) comprises a first valve core (25) and a second valve core (26) which are transmission-connected; the first valve core (25) and the second valve core (26) are transmission-connected. 5), at least part of the second valve core (26) is arranged along the axial direction of the valve core assembly (20), the first valve core (25) has a first conduction port (21), the first conduction port (21) is located at the axial end of the first valve core (25) facing away from the second valve core (26), the second valve core (26) has a second conduction port (22), the second conduction port (22) is located at the axial end of the second valve core (26) facing away from the first valve core (25); In any working mode of the control valve assembly (1), the first conduction port (21) is connected to the first port (P1), the second conduction port (22) is connected to the second port (P2), the first port (P1) can be connected to the selection port (111) through the first valve core (25), and the second port (P2) can be connected to the selection port (111) through the second valve core (26).

2. The control valve assembly (1) according to claim 1, characterized in that The first valve core (25) comprises a first circumferential wall portion (251), the first circumferential wall portion (251) has a third conduction port (252), the third conduction port (252) is communicated with the first conduction port (21), the second valve core (26) comprises a second circumferential wall portion (261), the second circumferential wall portion (261) has a fourth conduction port (262), the fourth conduction port (262) is communicated with the second conduction port (22); In any working mode of the control valve assembly (1), the third conduction port (252) can be communicated with at least one gate port, and the fourth conduction port (262) can be communicated with at least one gate port.

3. The control valve assembly (1) according to claim 1, characterized in that The valve housing assembly (10) comprises a first selection port group (102) and a second selection port group (105); the selection port (111) in the first selection port group (102) comprises a third port (P3) and a fourth port (P4); the selection port (111) in the second selection port group (105) comprises a fifth port (P5) and a sixth port (P6); the valve housing assembly (10) further comprises a first port (M1), a second port (M2), a third port (M3) and a fourth port (M4); in the valve housing assembly (10), the first port (M1) is in communication with the first port (P1), the second port (M2) is in communication with the second port (P2), the third port (M3) is in communication with the third port (P3) and the fifth port (P5), and the fourth port (M4) is in communication with the fourth port (P4) and the sixth port (P6); The third port (M3) can be communicated with the first port (P1) through the third port (P3) and the first valve core (25), or the third port (M3) can be communicated with the second port (P2) through the fifth port (P5) and the second valve core (26); The fourth port (M4) can communicate with the second port (P2) through the sixth port (P6) and the second valve core (26), or the fourth port (M4) can communicate with the first port (P1) through the fourth port (P4) and the first valve core (25).

4. The control valve assembly (1) according to claim 3, characterized in that The first selection port group (102) further includes a seventh port (P7), the second selection port group (105) further includes an eighth port (P8), the valve housing assembly (10) further includes a fifth port (M5), and in the valve housing assembly (10), the fifth port (M5) is in communication with the seventh port (P7) and the eighth port (P8); The fifth port (M5) can be communicated with the first port (P1) through the seventh port (P7) and the first valve core (25), or the fifth port (M5) can be communicated with the second port (P2) through the eighth port (P8) and the second valve core (26).

5. The control valve assembly (1) according to claim 4, characterized in that The control valve assembly (1) has at least one of the following working modes: In the first working mode, the third port (M3) is connected to the first port (M1) through the third port (P3), the first valve core (25), and the first port (P1); the fourth port (M4) is connected to the second port (M2) through the sixth port (P6), the second valve core (26), and the second port (P2); the first valve core (25) and the second valve core (26) close the fifth port (M5); In the second working mode, the fifth port (M5) is connected to the first port (M1) through the seventh port (P7), the first valve core (25), and the first port (P1); the fourth port (M4) is connected to the second port (M2) through the sixth port (P6), the second valve core (26), and the second port (P2); the first valve core (25) and the second valve core (26) close the third port (M3); In the third working mode, the third port (M3) is connected to the first port (M1) through the third port (P3), the first valve core (25), and the first port (P1); the fifth port (M5) is connected to the first port (M1) through the seventh port (P7), the first valve core (25), and the first port (P1); the fourth port (M4) is connected to the second port (M2) through the sixth port (P6), the second valve core (26), and the second port (P2); In the fourth working mode, the third port (M3) is connected to the second port (M2) through the fifth port (P5), the second valve core (26), and the second port (P2); the fifth port (M5) is connected to the second port (M2) through the eighth port (P8), the second valve core (26), and the second port (P2); the fourth port (M4) is connected to the first port (M1) through the fourth port (P4), the first valve core (25), and the first port (P1); In the fifth working mode, the fourth port (M4) is connected to the first port (M1) through the fourth port (P4), the first valve core (25), and the first port (P1); the fifth port (M5) is connected to the second port (M2) through the eighth port (P8), the second valve core (26), and the second port (P2); the first valve core (25) and the second valve core (26) close the third port (M3); In the sixth working mode, the third port (M3) is connected to the second port (M2) through the fifth port (P5), the second valve core (26), and the second port (P2); the fourth port (M4) is connected to the first port (M1) through the fourth port (P4), the first valve core (25), and the first port (P1); the first valve core (25) and the second valve core (26) close the fifth port (M5).

6. The control valve assembly (1) according to any one of claims 1 to 5, characterized in that: The valve cavity (110) comprises a first valve cavity (101) and a second valve cavity (104), at least a portion of the first valve cavity (101) and at least a portion of the second valve cavity (104) are arranged along the axial direction of the valve core assembly (20), the valve housing assembly (10) comprises a first shell (16) and a partition (33), the partition (33) is sealed in the first shell (16), the first shell (16) defines a portion of the wall of the first valve cavity (101) and the second valve cavity (104), one side of the partition (33) in the thickness direction defines a portion of the wall of the first valve cavity (101), and the other side of the partition (33) in the thickness direction defines a wall of the second valve cavity (104); At least one of the first valve core (25) and the second valve core (26) passes through the partition plate (33) and is sealed with the partition plate (33).

7. The control valve assembly (1) according to claim 6, characterized in that The first housing (16) comprises a top wall portion (11) and a side wall portion (13), the first port (P1) is located on the top wall portion (11), the gating port is located on the side wall portion (13), the top wall portion (11) defines a portion of the wall portion of the first valve cavity (101), and the partition plate (33) is fixedly connected to the side wall portion (13) and is sealed; The radial dimension of the first valve core (25) is smaller than the radial dimension of the second valve core (26).

8. The control valve assembly (1) according to claim 6, characterized in that The control valve assembly (1) further comprises a drive shaft (32), wherein the drive shaft (32) passes through the first port (P1) and is transmission-connected to at least one of the first valve core (25) and the second valve core (26); The partition (33) includes a limiting portion (331), and the side of the first valve core (25) facing the second valve core (26) or the side of the second valve core (26) facing the first valve core (25) includes a matching portion (27), and at the rotation limit position of the valve core assembly (20), the limiting portion (331) abuts against the matching portion (27).

9. A fluid control device, characterized in that: The fluid control device comprises a fluid part (40) and a control valve assembly (1) according to any one of claims 1 to 8, wherein at least a portion of the fluid part (40) is located in the valve housing assembly (10), and the fluid control device has a first flow path opening (411) and a second flow path opening (412), wherein the first flow path opening (411) or the second flow path opening (412) is connected to a channel of the fluid part (40), the first flow path opening (411) is connected to the first port (P1) in the control valve assembly (1), and the second flow path opening (412) is connected to the second port (P2) in the control valve assembly (1).

10. The fluid control device according to claim 9, characterized in that: The fluid component (40) comprises a pump assembly (42), the first flow path opening (411) is located in the pump assembly (42), and the first flow path opening (411) is embedded in the valve core assembly (20).

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