Control valve assembly and fluid control device

Abstract

Disclosed are a control valve assembly and a fluid control device. The control valve assembly (1) comprises a valve casing assembly (10) and a valve core assembly (20); the valve casing assembly has a valve chamber (101), normally-open ports (103) and gated ports (102); the normally-open ports comprise a first port (P1) and a second port (P2), the first port and the second port being spaced apart from each other; at least part of the valve core assembly is located in the valve chamber. The valve core assembly can rotate around an axis (X-X). The valve core assembly comprises a first gate-on port (21) and a second gate-on port (22) which are spaced apart from each other in the extension direction of the axis, the first gate-on port and the second gate-on port both being located at axial end parts of the valve core assembly. In any working mode of the control valve assembly, the first gate-on port is connected to the first port, the second gate-on port is connected to the second port, and the first port and the second port are selectively connected to the different gated ports via the valve element assembly, thus aiding the control valve assembly in having at least two normally-open ports.

Description

Control valve assemblies and fluid control devices

[0001] This application claims priority to two Chinese patent applications, filed with the China Patent Office on June 29, 2023, with application number 202310783341.X and invention name “Control valve assembly and fluid control device”, and filed with the China Patent Office on June 29, 2023, with application number 202310791287.3 and invention name “Control valve assembly and fluid control device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of fluid control, and in particular to a control valve assembly and a fluid control device. Background Art

[0003] 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 needs to pass through the at least two flow paths at all times in any mode, how to design a control valve assembly to meet the above-mentioned working mode requirements is an urgent problem that needs to be solved.

[0004] Summary of the Invention

[0005] The purpose of this application is to provide a control valve assembly and a fluid control device, which 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.

[0006] On the one hand, the technical solution of the present application provides a control valve assembly, the control valve assembly comprising a valve housing assembly and a valve core assembly, the valve housing assembly having a valve cavity, a normally open port, and a gate port, the normally open port comprising a first port and a second port, at least a portion of the valve core assembly being located in the valve cavity, the valve core assembly being rotatable about an axis, the valve core assembly comprising a first conducting port and a second conducting port spaced apart along an extending direction of the axis, the first conducting port being located at one axial end portion of the valve core assembly, and the second conducting port being located at the other axial end portion of the valve core assembly;

[0007] In any working mode of the control valve assembly, the first conducting port is communicated with the first port, the second conducting port is communicated with the second port, and the first port and the second port are selectively communicated with different selection ports by rotating the valve core assembly.

[0008] According to the control valve assembly provided by the technical solution of the present application, the valve core assembly includes a first conducting port and a second conducting port arranged at intervals along the extension direction of the axis. By arranging the first conducting port and the second conducting port to be located at the axial end of the valve core assembly, and in any working mode of the control valve assembly, the first conducting port is connected with the first port, and the second conducting port is connected with the second port, so that when the valve core assembly is in any working position, the connection relationship between the first conducting port and the first port, and the connection relationship between the second conducting port and the second port remain unchanged, so that the first port and the second port become normal ports; 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.

[0009] On the other hand, an embodiment of the present application provides a fluid control device, which includes a fluid part and the above-mentioned control valve assembly, at least part of the fluid part is located in the valve housing assembly, and the fluid control device has a first flow path and a second flow path, the first flow path or the second flow path is connected to the channel of the fluid part, the first flow path is connected to the first port in the control valve assembly, and the second flow path is connected to the second port in the control valve assembly.

[0010] According to the fluid control device provided in the embodiment of the present application, at least part 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 facilitate improving 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 facilitate making the first flow path opening and the second flow path opening as normally-open flow paths, so as to facilitate meeting the working mode requirements of the fluid control device. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] FIG1 is a schematic diagram of the three-dimensional structure of a control valve assembly provided by an embodiment of the present application;

[0012] FIG2 is a schematic cross-sectional view of the control valve assembly shown in FIG1 at a first position;

[0013] FIG3 is a schematic cross-sectional view of a fluid control device according to an embodiment of the present application;

[0014] FIG4 is an enlarged structural schematic diagram of the fluid control device shown in FIG3 at position Q1;

[0015] FIG5 is a schematic diagram of the three-dimensional structure of the first valve core shown in FIG2;

[0016] FIG6 is a schematic cross-sectional structural diagram of the first valve core shown in FIG5 at one position;

[0017] FIG7 is a schematic cross-sectional structural diagram of the first valve core shown in FIG5 at another position;

[0018] FIG8 is a schematic structural diagram of the control valve assembly shown in FIG2 in the first working mode;

[0019] FIG9 is a schematic structural diagram of the control valve assembly shown in FIG2 in the second working mode;

[0020] FIG10 is a schematic structural diagram of the control valve assembly shown in FIG2 in the third working mode;

[0021] FIG11 is a schematic structural diagram of the control valve assembly shown in FIG2 in the fourth working mode;

[0022] FIG12 is a schematic structural diagram of the control valve assembly shown in FIG2 in the fifth working mode;

[0023] FIG13 is a schematic structural diagram of the control valve assembly shown in FIG2 in the sixth working mode;

[0024] FIG14 is a schematic diagram of the three-dimensional structure of a control valve assembly provided in another embodiment of the present application;

[0025] FIG15 is a schematic cross-sectional view of the control valve assembly shown in FIG14 at a first position;

[0026] FIG16 is a schematic cross-sectional view of a fluid control device provided by another embodiment of the present application;

[0027] FIG17 is a front structural schematic diagram of the control valve assembly shown in FIG15;

[0028] FIG18 is a schematic cross-sectional view of the control valve assembly shown in FIG17 along the AA direction;

[0029] FIG19 is a schematic cross-sectional view of the control valve assembly shown in FIG17 along the BB direction;

[0030] FIG20 is a schematic diagram of a partial structure of the valve housing assembly shown in FIG15 at one angle;

[0031] FIG21 is a schematic diagram of a portion of the valve housing assembly shown in FIG15 at another angle;

[0032] FIG22 is a schematic perspective structural diagram of the valve core assembly shown in FIG15;

[0033] FIG23 is a schematic cross-sectional view of the valve core assembly shown in FIG22;

[0034] FIG24 is a schematic structural diagram of the control valve assembly shown in FIG15 in the first working mode;

[0035] FIG25 is a schematic structural diagram of the control valve assembly shown in FIG15 in the second working mode;

[0036] FIG26 is a schematic structural diagram of the control valve assembly shown in FIG15 in the third working mode;

[0037] FIG27 is a schematic structural diagram of the control valve assembly shown in FIG15 in the fourth working mode;

[0038] FIG28 is a schematic structural diagram of the control valve assembly shown in FIG15 in the fifth working mode;

[0039] FIG29 is a schematic structural diagram of the control valve assembly shown in FIG15 in the sixth working mode;

[0040] FIG30 is a schematic diagram of the three-dimensional structure of a partition shown in FIG15.

[0041] Description of the drawings:

[0042] 1. Control valve assembly; XX, axis; 104, drive chamber; 105, port; 10, valve housing assembly; 101, valve chamber; 102, gate port; 103, normally open port; P1, first port; P2, second port; P3, third port; P4, fourth port; P5, fifth port; P6, sixth port; P7, seventh port; P8, eighth port; P9, ninth port; P10, tenth port; P11, eleventh port; M1, first port; M2, second port; M3, third port; M4, fourth port; M5, fifth port; 11, first end wall; 12, second end wall; 13, side wall; 14, first channel; 15, connecting pipe; 16, first housing; 20, valve core assembly; S1, first end; S2, second end; 21, first conducting port; 22, second conducting port; 23, transmission limiter; 24, first valve core; 241, third conducting port; 242, fourth conducting port; 243, first circumferential wall; 244, partition; 25, second valve core; 251, Second circumferential wall portion; 252, fifth conducting port; 26, third valve core; 261, third circumferential wall portion; 262, sixth conducting port; 31, drive assembly; 32, transmission shaft; 33, partition; 34, second housing portion; 35, third housing portion; 51, first sealing assembly; 52, second sealing member; 53, third sealing member; 2, fluid control device; 40, fluid member; 411, first flow path opening; 412, second flow path opening; 42, pump assembly; 422, stator assembly; 423, rotor assembly; 424, bearing assembly; 425, impeller assembly. DETAILED DESCRIPTION

[0043] The features and exemplary embodiments of various aspects of the present application are described below. In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the present application is further described below in conjunction with the accompanying drawings and specific embodiments. In this document, relational terms such as "first" and "second" are merely used to distinguish one component from another with the same name, and do not necessarily require or imply any actual relationship or order between these components.

[0044] As shown in Figures 1 to 7, an embodiment of the present application 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.

[0045] As shown in FIG3 , the fluid control device 2 provided in the embodiment of the present application 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 102. The control valve assembly 1 includes a valve housing assembly 10 and a valve core assembly 20. At least a portion of the valve core assembly 20 is located within the valve housing assembly 10, and at least a portion of the fluid component 40 is located within the same valve housing assembly 10. Compared to separately arranging the control valve assembly and the fluid component, the fluid control device 2 provided in the embodiment of the present application has a higher degree of integration. The fluid control device 2 herein can be used as a modular assembly in a vehicle thermal management system, has a higher degree of integration, and occupies a smaller space.

[0046] In the embodiment of the present application, the valve core assembly 20 is rotatable, and the rotation of the valve core assembly 20 allows any of the normally open ports 103 to communicate with at least one of the gate ports 102. Specifically, the normally open ports 103 include a first port P1 and a second port P2. The first port P1 can communicate with at least one of the gate ports 102. Similarly, the second port P2 can also communicate with at least one of the gate ports 102. Accordingly, the fluid control device 2 has a first flow path port 411 and a second flow path port 412. The first flow path port 411 or the second flow path port 412 is connected to the channel of the fluid component 40. For example, in this embodiment, the first flow path port 411 is connected to the channel of the fluid component 40, the first flow path port 411 is connected to the first port P1 in the control valve assembly 1, and the second flow path port 412 is connected to the second port P2 in the control valve assembly 1. Through the above arrangement, the first flow path port 411 and the second flow path port 412 can be used as normally open flow paths, which can meet the working mode requirements of the fluid control device 2.

[0047] It should be noted that, in this article, the normal flow 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 102 means that in some working modes, the selection port 102 can be in a connected state, and in other working modes, the selection port 102 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 component 40, or the first flow path port 411 can be located on the connecting block connected between the fluid component 40 and the control valve assembly 1, or the first flow path port 411 can coincide with the first port P1. The second flow path port 412 can coincide 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.

[0048] As shown in FIG3 , in some embodiments, the fluid component 40 includes a pump assembly 42, and a first flow passage 411 is located in the pump assembly 42. In this case, the first flow passage 411 can serve as an inlet or outlet of the pump assembly 42. Alternatively, the first flow passage 411 can be embedded within the valve core assembly 20. At least a portion of the pump assembly 42 and at least a portion of the valve core assembly 20 are integrated within 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, thereby improving the integration of the fluid control device 2 and reducing the flow resistance of the fluid.

[0049] Furthermore, the pump assembly 42 includes a stator assembly 422, a rotor assembly 423, and an impeller assembly 425. 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. As shown in FIG3 , in this embodiment of the present application, the stator assembly 422, the rotor assembly 423, and the impeller assembly 425 of the pump assembly 42 are all integrated into the valve housing assembly 10, thereby improving the integration of the fluid control device 2, reducing the number of parts, and simplifying the structure.

[0050] In order to meet the requirements of various working modes of the fluid control device 2, as shown in Figures 1 to 8, an embodiment of the present application also provides a control valve assembly 1, which can be applied to the above-mentioned fluid control device 2.

[0051] Specifically, the valve housing assembly 10 of the control valve assembly 1 has a valve cavity 101, a normal port 103 and a selection port 102. The normal port 103 includes a first port P1 and a second port P2. The first port P1 and the second port P2 are isolated and arranged. At least part of the valve core assembly 20 is located in the valve cavity 101. The valve core assembly 20 can rotate around the axis XX. The valve core assembly 20 includes a first conducting port 21 and a second conducting port 22 arranged at intervals 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, and the wall defining the first conducting port 21 and the wall defining the second conducting port 22 surround the axis XX.

[0052] Optionally, at any operating position of the valve core, the orthographic projection of the first conducting port 21 along axis XX at least partially overlaps with the orthographic projection of the first port P1 along axis XX, and the orthographic projection of the second conducting port 22 along axis XX at least partially overlaps with the orthographic projection of the second port P2 along axis XX. Herein, the portion where the first conducting port 21 is located includes the first conducting port 21 and the wall defining the first conducting port 21. Similarly, the portion where the first port P1 is located includes the first port P1 and the wall defining the first port P1. The portions where the other ports are located also include the ports and the wall defining the ports.

[0053] In a specific implementation, as shown in FIG6 , an extension line of the axis XX passes through the center of both the first conducting port 21 and the center of the second conducting port 22; or at least one of the first conducting port 21 and the second conducting port 22 is an annular structure, i.e., at least one of the inner and outer circumferential walls of the first conducting port 21 is a circular, arc-shaped, or other closed structure that surrounds the entire circumference of the axis XX, and at least one of the inner and outer circumferential walls of the second conducting port 22 is a circular, arc-shaped, or other closed structure that surrounds the entire circumference of the axis XX. With this arrangement, the positions of at least a portion of the first conducting port 21 and at least a portion of the second conducting port 22 remain unchanged at any rotational position of the valve core assembly 20. This allows the first conducting port 21 to communicate with the first port P1, the second conducting port 22 to communicate with the second port P2, and the first and second ports P1 and P2 to selectively communicate with different selection ports 102 through the valve core assembly 20. Through the above arrangement, the connection relationship between the first conducting port 21 and the first port P1 and the connection relationship between the second conducting port 22 and the second port P2 remain unchanged, so that the first port P1 and the second port P2 become normally connected ports, so as to meet the working mode requirements of the fluid control device 2.

[0054] As shown in Figures 5 to 7, in some embodiments, the valve core assembly 20 includes a first end portion S1 and a second end portion S2. The first end portion S1 and the second end portion S2 are arranged along the axis XX of the valve core assembly 20. The first end portion S1 is located on one axial side of the valve core assembly 20, and the second end portion S2 is located on the other axial side of the valve core assembly 20. The first conducting port 21 is located at the first end portion S1, and the second conducting port 22 is located at the second end portion S2. This arrangement facilitates structural simplification and facilitates ensuring that the first conducting port 21 is always in communication with the first port P1, and the second conducting port 22 is always in communication with the second port P2.

[0055] 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 in 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 a portion 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 can be an integral structure with the side wall portion 13, 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 both be welded to the side wall portion 13. The first port P1 is located in the first end wall portion 11, the second port P2 is located in the second end wall portion 12, and the selection port 102 is located in the side wall portion 13. Through the above arrangement, the structure of the control valve assembly 1 is simplified. When the first port P1 is located at the first end wall portion 11 and the first conducting port 21 is located at the first end portion S1, the first end wall portion 11 and the first end portion S1 are limitedly set and the two are arranged relative to each other. When the control valve assembly 1 is applied to the fluid control device 2, the first port P1 can be connected to the first flow path port 411 (the pump port of the pump assembly 42), reducing the length of the flow path between the pump assembly 42 and the valve core assembly 20, thereby reducing the flow resistance.

[0056] In conjunction with Figures 2, 3 and 6, in order to achieve the rotation of the valve core assembly 20, in some embodiments, the valve core assembly 20 includes a transmission limit portion 23, and along the extension direction of the axis XX, the transmission limit portion 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 limited and connected to the transmission limit portion 23. For example, in Figure 2, the transmission shaft 32 passes through the first port P1 and is interference fit with the transmission limit portion 23. Optionally, one of the transmission shaft 32 and the transmission limit portion 23 includes a protrusion and the other includes a groove, and the protrusion is embedded in the groove. To reduce wear on the transmission limit portion 23, in some embodiments, the control valve assembly 1 may also include a sleeve structure, which is sleeved between the outer peripheral wall of the transmission shaft 32 and the inner peripheral wall of the transmission limit portion 23.

[0057] Furthermore, when the control valve assembly 1 is applied to a fluid control device 2, and the fluid control device 2 includes a pump assembly 42, the drive shaft 32 can be reused as the pump shaft. In this case, the drive shaft 32 comprises a metal material, and the rotor assembly 423 is located on the outer circumference of the drive shaft 32. To enable the rotor assembly 423 of the pump assembly 42 and the valve core assembly 20 of the control valve assembly 1 to rotate independently, in some embodiments, as shown in conjunction with FIG. 3 and FIG. 4 , the pump assembly 42 further includes a bearing assembly 424. The bearing assembly 424 is located between the rotor assembly 423 and the drive shaft 32 along the radial direction of the rotor assembly 423.

[0058] Please further refer to Figures 2 and 3. In order to achieve the rotation of the valve core assembly 20, in some embodiments, the control valve assembly 1 also includes a drive assembly 31. At least a portion of the drive assembly 31 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. The drive assembly 31 includes a motor or a combination of a motor and a gear, and the transmission shaft 32 is driven by the rotation of the motor. The transmission connection between the two components in this article means that power can be transmitted between the two components. The two components can be an interference fit or an integrated structure, or power transmission can be achieved through a third component.

[0059] Furthermore, the control valve assembly 1 further comprises a drive chamber 104, which is fluidically isolated from the valve chamber 101. That is, the fluids between the drive chamber 104 and the valve chamber 101 do not interact. At least a portion of the drive assembly 31 and a portion of the drive shaft 32 are located in the drive chamber 104. The first port P1 is located between the second port P2 and the drive assembly 31. The drive shaft 32 passes through the first port P1 and is positioned and transmission-connected to the transmission limiter 23. For example, the drive shaft 32 and the transmission limiter 23 may be interference-fitted or integrally formed.

[0060] To fluidically isolate the drive chamber 104 from the valve chamber 101, the valve housing assembly 10 includes a first housing portion 16, wherein the sidewall portion 13 and the first end wall portion 11 are located in the first housing portion 16. The first housing portion 16 can form at least a portion 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 a portion of the second housing portion 34 is located axially to one side of the first housing portion 16, and the second housing portion 34 and the first housing portion 16 are interlocked and sealed. At least a portion of the third housing portion 35 is located within the space defined by the first and second housing portions 16, and the third housing portion 35 is sealed to the inner wall of the first housing portion 16. The second, first, and third housing portions 34, 35 can all form partial walls of the drive chamber 104, and the transmission shaft 32 is sealed to the third housing portion 35.

[0061] In a specific implementation, a portion of the transmission shaft 32 is located on the inner circumference of the third housing portion 35, and a seal is provided between the outer circumference of the transmission shaft 32 and the inner circumference of the third housing portion 35. As shown in FIG2 , 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 portion 16. Alternatively, as shown in FIG3 , when the control valve assembly 1 is integrated with the pump assembly 42, at least a portion of the pump assembly 42 is located inside the first housing portion 16, and the stator assembly 422 of the pump assembly 42 can be integrally injection-molded inside the third housing portion 35. The third housing portion 35 can also be reused as the isolation cover structure of the pump assembly 42. The rotor assembly 423 is located on the inner circumference of the third housing portion 35 to prevent fluid from entering the stator assembly 422 and damaging the coil assembly in the stator assembly 422.

[0062] As shown in FIG2 , when the control valve assembly 1 is a standalone structure, the valve housing assembly 10 may further include a first channel portion 14. The channel in the first channel portion 14 is communicable with the first port P1. Along the axial direction of the control valve assembly 1, at least a portion of the first channel portion 14 is located between the drive assembly 31 and the valve core assembly 20. Fluid can flow into or out of the first port P1 through the first channel portion 14. When the control valve assembly 1 is integrated with the pump assembly 42, the first flow path 411 is communicated with the first port P1, allowing fluid to flow into the first flow path 411 from the first port P1 or from a conducting cavity communicated with 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.

[0063] In some embodiments, the valve core assembly 20 includes a first valve core 24, and the valve housing assembly 10 further has a port 105, as shown in Figure 2. When the control valve assembly 1 is an independent structure, the port 105 can be exposed on the outer surface of the control valve assembly 1; when the valve core assembly 20 and the pump assembly 42 are both integrated into the same valve housing assembly 10, a portion of the port 105 of the control valve assembly 1 can coincide with or be spaced apart and connected to the second flow path port 412, another portion of the port 105 can coincide with or be spaced apart and connected to the first flow path port 411, and another portion of the port 105 can be arranged in the connecting pipe portion 15, the connecting pipe portion 15 can be integrally arranged with the side wall portion 13 or sealed connected, or the connecting pipe portion can be integrally arranged with the end wall portion of the valve housing assembly 10 or sealed connected.

[0064] In some embodiments, the valve core assembly 20 includes a first valve core 24, which includes a first circumferential wall portion 243. At least a portion of the first circumferential wall portion 243 is located between a first end portion S1 of the first valve core 24 and a second end portion S2 of the first valve core 24. The first valve core 24 also includes a third conduction port 241 and a fourth conduction port 242. The third conduction port 241 communicates with the first conduction port 21 to define a first conduction cavity, and the fourth conduction port 242 communicates with the second conduction port 242 to define a second conduction cavity. The third conduction port 241 and the fourth conduction port 242 are located on the same circumferential wall portion. As shown in FIG6 , the first valve core 24 also includes a partition portion 244. The first conduction cavity and the second conduction cavity are located on opposite sides of the partition portion 244 in the height direction.

[0065] Based on this, the selection port 102 includes a third port P3, a fourth port P4 and a fifth port P5. The third port P3 is connected to the third port M3, the fourth port P4 is connected to the fourth port M4, and the fifth port P5 is connected to the fifth port M5. Any one of the third conductive port 241 and the fourth conductive port 242 can connect any one or two adjacent ones of the third port P3, the fourth port P4 and the fifth port P5.

[0066] In some embodiments, the first circumferential wall portion 243 comprises a spherical surface. The first end S1 of the first valve core 24 is sealed against the first end wall portion 11 of the valve housing assembly 10, and the second end S2 of the first valve core 24 is sealed against the second end wall portion 12 of the valve housing assembly 10. Optionally, to ensure a better seal for the control valve assembly 1, the control valve assembly 1 includes a first seal 51, a second seal 52, and a third seal 53. Along the radial direction of the first valve core 24, the first seal 51 is disposed adjacent to the selection port 102 and is located between the first valve core 24 and the valve housing assembly 10. To reduce cross-flow, the second seal 52 is disposed adjacent to the first port P1 and is located between the first valve core 24 and the valve housing assembly 10. The third seal 53 is disposed adjacent to the second port P2 and is located between the first valve core 24 and the valve housing assembly 10. Among them, the first sealing member 51 can include a sealing block and an elastic member, the sealing block is located between the first valve core 24 and the elastic member, the elastic member is located between the first valve core 2 and the valve housing assembly 10, and the second sealing member 52 and the third sealing member 53 can both be sealing structures such as rubber sealing rings.

[0067] In a specific implementation, in the control valve assembly 1, the port 105 includes a first port M1, a second port M2, a third port M3, a fourth port M4 and a fifth port M5. The first port M1 is connected to the first port P1, the second port M2 is connected to the second port P2, and the third port M3, the fourth port M4 and the fifth port M5 are respectively connected to at least one gate port 102. The control valve assembly 1 has at least one of the following working modes:

[0068] As shown in Figure 8, in the first working mode of the control valve assembly 1, the first valve core 24 is located in the first working position, the third port M3 is connected to the second port M2, and the fifth port M5 and the fourth port M4 are both connected to the first port M1. Through the above setting, the proportional adjustment between the fifth port M5 and the fourth port M4 can be achieved by rotating the first valve core 24.

[0069] As shown in FIG9 , in the second working mode of the control valve assembly 1 , the first valve core 24 is located at the second working position, the third port M3 is connected to the second port M2 , the fifth port M5 is closed, and the first port M1 is connected to the fourth port M4 .

[0070] As shown in FIG10 , in the third working mode of the control valve assembly 1 , the first valve core 24 is located at the third working position, the third port M3 is connected to the second port M2 , the fourth port M4 is closed, and the first port M1 is connected to the fifth port M5 .

[0071] As shown in Figure 11, in the fourth working mode of the control valve assembly 1, the first valve core 24 is located in the fourth working position, the third port M3 is connected to the first port M1, and the fifth port M5 and the fourth port M4 are both connected to the second port M2. Through the above setting, the proportional adjustment between the fifth port M5 and the fourth port M4 can be achieved by rotating the first valve core 24.

[0072] As shown in FIG12 , in the fifth working mode of the control valve assembly 1 , the first valve core 24 is located at the fifth working position, the third port M3 is connected to the first port M1 , the fifth port M5 is closed, and the second port M2 and the fourth port M4 are connected.

[0073] As shown in FIG13 , in the sixth working mode of the control valve assembly 1 , the first valve core 24 is located at the sixth working position, the third port M3 is connected to the first port M1 , the fourth port M4 is closed, and the fifth port M5 is connected to the second port M2 .

[0074] More working modes can be achieved through the rotation of the valve core assembly 20. For example, when the third port P3, the fourth port P4 and the fifth port P5 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 fourth port M4 is connected to the first port M1, and the third port M3 and the fifth port M5 are connected to the second port M2 at the same time; in an eighth working mode, the fourth port M4 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 fourth port M4 and the second port M2 are connected.

[0075] As shown in Figures 14 to 28, a control valve assembly 1 and a fluid control device 2 provided in another embodiment of the present application are shown. The control valve assembly 1 is similar in structure and installation method to the drive assembly of the control valve assembly 1 shown in Figures 1 to 13, and the working mode of the control valve assembly 1 is at least partially the same as the working mode of the control valve assembly 1 shown in Figures 1 to 13. The difference between the two control valve assemblies 1 is at least that the structure of the valve core assembly 20 is different. To match this, part of the structure of the valve housing assembly 10 also changes adaptively.

[0076] Specifically, in the control valve assembly 1 shown in Figures 14 to 28, the valve core assembly 20 includes a second valve core 25 and a third valve core 26 that are transmission-connected. For example, one of the second valve core 25 and the third valve core 26 includes a shaft portion, and the other includes a recessed portion. The shaft portion is embedded in the recessed portion, and the two have an interference fit to achieve transmission connection between the second valve core 25 and the third valve core 26. The second valve core 25 is transmission-connected to the drive assembly 31 via a transmission shaft 32. Specifically, the first conduction port 21 is located in the second valve core 25, the second conduction port 22 is located in the third valve core 26, the first end S1 of the valve core assembly 20 is located in the second valve core 25, and the second end S2 is located in the third valve core 26. The transmission limit portion 23 is located on the side of the second valve core 25 near the third valve core 26.

[0077] The second valve core 25 includes a second circumferential wall portion 251 and a fifth conduction port 252 located on the second circumferential wall portion 251. The third valve core 26 includes a third circumferential wall portion 261 and a sixth conduction port 262 located on the third circumferential wall portion 261. The second valve core 25 can connect the first conduction port 21 with at least one gate port 102, and the third valve core 26 can connect the second conduction port 22 with at least one gate port 102. Optionally, the second circumferential wall portion 251 can have a spherical or cylindrical structure, and the third circumferential wall portion 261 can have a spherical or cylindrical structure.

[0078] In order to improve the cross-flow between the fluids conducted by the second valve core 25 and the third valve core 26, the control valve assembly 1 also includes a partition 33, the outer peripheral side of the partition 33 is sealed with the valve housing assembly 10, and the inner peripheral side of the partition 33 is sealed with the valve core assembly 20, the fifth conduction port 252 and the sixth conduction port 262 are respectively arranged on both sides of the thickness direction of the partition 33, at least part of the second valve core 25 is located on one side of the thickness direction of the partition 33, and at least part of the third valve core 26 is located on the other side of the thickness direction of the partition 33. As shown in Figures 15 and 16, the main body of the second valve core 25 is located on one side of the thickness direction of the partition 33, the protruding shaft portion of the second 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 third valve core 26, and the protruding shaft portion of the second valve core 25 is sealed with the partition 33.

[0079] Optionally, the radial dimension of the second valve core 25 is smaller than the radial dimension of the third valve core 26. This arrangement facilitates assembly of the second and third valve cores 25, 26, and reduces the driving torque of the drive assembly. Specifically, the second valve core 25 can be first installed into the accommodating cavity of the first housing portion 16, followed by the installation and welding of the partition plate 33 to the first housing portion 16. The partition plate 33 is now sealed against the second valve core 25, and finally, the third valve core 26 is installed into the accommodating cavity of the first housing portion 16 and is in driving connection with the second valve core 25.

[0080] In order to limit the rotational position of the valve core assembly 20, in some embodiments, the second valve core 25 or the third 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.

[0081] Furthermore, in conjunction with Figures 14 and 18 , the control valve assembly 1 provided in the embodiment of the present application can also be used as a separate valve structure. In this case, the structures and connection relationships of the first housing portion 16, the second housing portion 34, and the third housing portion 35 are the same or similar. For example, at least a portion of the third housing portion 35 is located within the first housing portion 16, and the second housing portion 34 can be welded and sealed. The first housing portion 16, the second housing portion 34, and the third housing portion 35 can jointly define a drive chamber 104, and the drive assembly 31 is located in the drive chamber 104. Alternatively, when applied to the fluid control device 2 shown in Figure 16, when the fluid component 40 in the fluid control device 2 includes a pump assembly 42, the stator assembly 422 and the isolation cover of the pump assembly 42 can be integrally injection molded into the third housing portion 35, and the rotor assembly 423 is located inside the third housing portion 35. When the stator assembly 422 is energized, it can drive the rotor assembly 423 to rotate. The drive shaft 32 of the control valve assembly 1 can be reused as the pump shaft of the pump assembly 42. Other similar structures are not described in detail.

[0082] In some embodiments, when the control valve assembly 1 further includes a transmission shaft 32, the transmission shaft 32 passes through the first port P1 and is in transmission connection with at least one of the second valve core 25 and the third valve core 26. To limit the rotational position of the valve core assembly 20, as shown in FIG30 , the partition plate 33 includes a limiting portion 331. A mating portion 27 is included on the side of the second valve core 25 facing the third valve core 26 or on the side of the third valve core 26 facing the second valve core 25. At the rotational limit position of the valve core assembly 20, the limiting portion 331 abuts the mating portion 27 to limit the rotational limit position of the valve core assembly 20.

[0083] In a specific embodiment, 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 housing portion 16. The limiting portion 331 protrudes from the blocking portion 332 along one side of the thickness direction of the blocking portion 332, and the supporting portion 333 protrudes from the blocking portion 332 along the other side of 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 is located in the blocking portion 332. As shown in Figures 14 to 23, the second valve core 25 passes through the through-hole portion 334, and the mating portion 27 is located in the third valve core 26. When the second valve core 25 drives the third valve core 26 to rotate, when the mating portion 27 abuts the limiting portion 331, the second valve core 25 stops rotating in the original direction.

[0084] In order to improve the cross-flow between the fluids conducted by the second valve core 25 and the third valve core 26, the control valve assembly 1 also includes a partition 33, the outer peripheral side of the partition 33 is sealed with the valve housing assembly 10, and 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 second valve core 25 is located on one side of the thickness direction of the partition 33, and at least part of the third valve core 26 is located on the other side of the thickness direction of the partition 33. As shown in Figures 2 and 3, the main body of the second valve core 25 is located on one side of the thickness direction of the partition 33, the protruding shaft portion of the second 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 third valve core 26, and the protruding shaft portion of the second valve core 25 is sealed with the partition 33.

[0085] In order to limit the rotational position of the valve core assembly 20, in some embodiments, the second valve core 25 or the third 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.

[0086] In a specific embodiment, the valve chamber 101 includes a first sub-chamber and a second sub-chamber. At least a portion of the first sub-chamber and at least a portion of the second sub-chamber are arranged axially along the valve core assembly 20. The valve housing assembly 10 includes a first housing portion 16 and a partition 33. The partition 33 is sealed within the first housing portion 16. The first housing portion 16 defines a portion of the wall of the first sub-chamber and the second sub-chamber. One side of the partition 33 in the thickness direction defines a portion of the wall of the first sub-chamber, while the other side of the partition 33 in the thickness direction defines a portion of the wall of the second sub-chamber. At least one of the second valve core 25 and the third valve core 26 passes through the partition 33 and is sealed therewith. This arrangement improves the sealing performance of the control valve assembly 1.

[0087] To achieve the operating mode of the control valve assembly 1, as shown in Figures 19 to 21, the selection port 102 includes a sixth port P6, a seventh port P7, an eighth port P8, a ninth port P9, a tenth port P10, and an eleventh port P11. The sixth port P6 and the seventh port P7 are both connected to the third port M3, the eighth port P8 and the ninth port P9 are both connected to the fourth port M4, and the tenth port P10 and the eleventh port P11 are both connected to the fifth port M5. The fifth conducting port 252 can connect any one or two adjacent ports among the sixth port P6, the eighth port P8, and the tenth port P10, and the sixth conducting port 262 can connect any one or two adjacent ports among the seventh port P7, the ninth port P9, and the eleventh port P11. The sixth port P6, the eighth port P8, and the tenth port P10 are provided corresponding to the second valve core 25, and the seventh port P7, the ninth port P9, and the tenth port P10 are provided corresponding to the third valve core 26.

[0088] The working modes of the control valve assembly 1 provided in the embodiment of the present application are described below with reference to FIG. 24 to FIG. 28 . The control valve assembly 1 provided in the embodiment of the present application has at least one of the following working modes:

[0089] As shown in Figure 24, in the first working mode of the control valve assembly 1, the second valve core 25 and the third valve core 26 are located in the first working position, the second valve core 25 connects the first port P1 with the eighth port P8 and the tenth port P10, and the third valve core 26 connects the second port P2 with the seventh port P7, so that the third port M3 is connected with the second port M2, and the fifth port M5 and the fourth port M4 are both connected with the first port M1. Through the above arrangement, the proportional adjustment between the fifth port M5 and the fourth port M4 can be achieved by rotating the second valve core 25.

[0090] As shown in Figure 25, in the second working mode of the control valve assembly 1, the second valve core 25 and the third valve core 26 are located in the second working position, the second valve core 25 connects the first port P1 with the eighth port P8, and closes the tenth port, the third valve core 26 connects the second port P2 with the seventh port P7, and closes the eleventh port P11, so that the third port M3 is connected with the second port M2, the fifth port M5 is closed, and the first port M1 is connected with the fourth port M4.

[0091] As shown in Figure 26, in the third working mode of the control valve assembly 1, the second valve core 25 and the third valve core 26 are located in the third working position, the second valve core 25 connects the first port P1 with the tenth port P10, and closes the eighth port P8, the third valve core 26 connects the second port P2 with the seventh port P7, and closes the ninth port P9, so that the third port M3 is connected with the second port M2, the fourth port M4 is closed, and the first port M1 is connected with the fifth port M5.

[0092] As shown in Figure 27, in the fourth working mode of the control valve assembly 1, the second valve core 25 and the third valve core 26 are located in the fourth working position, the second valve core 25 connects the first port P1 with the sixth port P6, and the third valve core 26 connects the second port P2 with the ninth port P9 and the eleventh port P11, so that the third port M3 is connected with the first port M1, and the fifth port M5 and the fourth port M4 are both connected with the second port M2. Through the above setting, the proportional adjustment between the fifth port M5 and the fourth port M4 can be achieved by rotating the third valve core 26.

[0093] As shown in Figure 28, in the fifth working mode of the control valve assembly 1, the second valve core 25 and the third valve core 26 are located in the fifth working position, the second valve core 25 connects the first port P1 with the sixth port P6, and closes the tenth port P10, the third valve core 26 connects the second port P2 with the ninth port P9, and closes the eleventh port P11, so that the third port M3 is connected with the first port M1, the fifth port M5 is closed, and the second port M2 and the fourth port M4 are connected.

[0094] As shown in Figure 29, in the sixth working mode of the control valve assembly 1, the second valve core 25 and the third valve core 26 are located in the sixth working position, the second valve core 25 connects the first port P1 with the sixth port P6, and closes the eighth port P8, the third valve core 26 connects the second port P2 with the eleventh port P11, and closes the ninth port P9, so that the third port M3 is connected with the first port M1, the fourth port M4 is closed, and the fifth port M5 and the second port M2 are connected.

[0095] In summary, according to the control valve assembly 1 provided in the embodiment of the present application, the valve core assembly 20 includes a first conduction port 21 and a second conduction port 22 arranged at intervals along the extension direction of the axis XX. By setting the extension line of the axis XX to pass through the first conduction port 21 and the second conduction port 22, the valve core assembly 20 is able to maintain the position of at least a portion of the first conduction port 21 and at least a portion of the second conduction port 22 at any rotation position, thereby maintaining 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, thereby making the first port P1 and the second port P2 normally connected. Furthermore, by rotating the valve core assembly 20 so that the first port P1 and the second port P2 are selectively connected to different selection ports 102, the control function of the control valve assembly 1 on multiple flow paths can be realized.

[0096] It should be noted that the above embodiments are only used to illustrate the present application and are not intended to limit the technical solutions described in the present application. For example, the directional definitions of "front", "back", "left", "right", "up", and "down" are not limited. Although this specification has described the present application with reference to the above embodiments, ordinary technicians in this field should understand that technicians in the relevant technical field can still modify, combine or replace the present application with equivalents, and all technical solutions and improvements that do not depart from the spirit and scope of the present application should be included in the scope of the claims of the present application.

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), wherein the valve housing assembly (10) has a valve cavity (101), a normal port (103) and a selection port (102), wherein the normal port (103) comprises a first port (P1) and a second port (P2), wherein at least a portion of the valve core assembly (20) is located in the valve cavity (101), wherein the valve core assembly (20) is capable of rotating around an axis (XX), wherein the valve core assembly (20) comprises a first conduction port (21) and a second conduction port (22) which are arranged at intervals along an extension direction of the axis (XX), wherein the first conduction port (21) is located at one axial end of the valve core assembly (20), and the second conduction port (22) is located at the other axial end of the valve core assembly (20); 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), and the first port (P1) and the second port (P2) are selectively connected to different selection ports (102) by rotating the valve core assembly (20).

2. The control valve assembly (1) according to claim 1, characterized in that The valve core assembly (20) comprises a first end portion (S1) and a second end portion (S2), the first end portion (S1) and the second end portion (S2) are arranged along the extension direction of the axis (XX) of the valve core assembly (20), the first conduction port (21) is located at the first end portion (S1), the second conduction port (22) is located at the second end portion (S2), and the extension line of the axis (XX) passes through the first conduction port (21) and the second conduction port (22); And / or, the valve housing assembly (10) comprises 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) being arranged along the axial direction of the valve housing assembly (10), at least a portion of the side wall portion (13) being connected between the first end wall portion (11) and the second end wall portion (12), the first port (P1) being located in the first end wall portion (11), the second port (P2) being located in the second end wall portion (12), and the selection port (102) being located in the side wall portion (13).

3. The control valve assembly (1) according to claim 2, characterized in that The valve core assembly (20) comprises a transmission limit portion (23), and along the extension direction of the axis (XX), the transmission limit portion (23) is located between the first end portion (S1) and the second end portion (S2); The control valve assembly (1) further comprises a transmission shaft (32), wherein the transmission shaft (32) passes through the The first port (P1) or the second port (P2) is limitedly arranged and transmission-connected with the transmission limiting portion (23).

4. The control valve assembly (1) according to claim 3, characterized in that The control valve assembly (1) further comprises a drive assembly (31), at least a portion of the drive assembly (31) is located on one side of the axial direction of the valve core assembly (20), and the drive assembly (31) is in transmission connection with the transmission shaft (32), the control valve assembly (1) further comprises a drive chamber (104), the drive chamber (104) and the valve chamber (101) are isolated from each other, at least a portion of the drive assembly (31) and a portion of the transmission shaft (32) are located in the drive chamber (104), 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 with the transmission limit portion (23) and is in transmission connection with each other; The valve housing assembly (10) further comprises a first channel portion (14), a channel in the first channel portion (14) being communicable with the first port (P1), and along the axial direction of the control valve assembly (1), at least a portion of the first channel portion (14) is located between the drive assembly (31) and the valve core assembly (20).

5. The control valve assembly (1) according to any one of claims 1 to 4, characterized in that: The valve housing assembly (10) further comprises a port (105), wherein the port (105) is exposed to the outer surface of the control valve assembly (1). In the control valve assembly (1), the port (105) comprises a first port (M1), a second port (M2), a third port (M3), a fourth port (M4) and a fifth port (M5). 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), the fourth port (M4) and the fifth port (M5) are respectively connected to at least one of the selection ports (102). The control valve assembly (1) has at least one of the following working modes: In a first working mode, the third port (M3) is connected to the second port (M2), and the fifth port (M5) and the fourth port (M4) are both connected to the first port (M1); a second working mode, the third port (M3) is connected to the second port (M2), the fifth port (M5) is closed, and the first port (M1) is connected to the fourth port (M4); In the third working mode, the third port (M3) is connected to the second port (M2), The fourth port (M4) is closed, and the first port (M1) is connected to the fifth port (M5); In a fourth working mode, the third port (M3) is connected to the first port (M1), and the fifth port (M5) and the fourth port (M4) are both connected to the second port (M2); A fifth working mode, the third port (M3) is connected to the first port (M1), the fifth port (M5) is closed, and the second port (M2) and the fourth port (M4) are connected; In the sixth working mode, the third port (M3) is connected to the first port (M1), the fourth port (M4) is closed, and the fifth port (M5) is connected to the second port (M2).

6. The control valve assembly (1) according to claim 5, characterized in that The valve core assembly (20) comprises a first valve core (24), the first valve core (24) comprises a first circumferential wall portion (243), at least a portion of the first circumferential wall portion (243) is located between a first end portion (S1) of the first valve core (24) and a second end portion (S2) of the first valve core (24), the first valve core (24) further comprises a third conduction port (241) and a fourth conduction port (242), the third conduction port (241) is communicated with the first conduction port (21), the fourth conduction port (242) is communicated with the second conduction port (22), and the third conduction port (241) and the fourth conduction port (242) are located on the same circumferential wall portion; The selection port (102) includes a third port (P3), a fourth port (P4) and a fifth port (P5); the third port (P3) is connected to the third port (M3); the fourth port (P4) is connected to the fourth port (M4); the fifth port (P5) is connected to the fifth port (M5); any one of the third conduction port (241) and the fourth conduction port (242) can connect any one of the third port (P3), the fourth port (P4) and the fifth port (P5) or two adjacent ones.

7. The control valve assembly (1) according to claim 6, characterized in that The first circumferential wall portion (243) includes a spherical surface, the first end portion (S1) of the first valve core (24) is sealed with the first end wall portion (11) of the valve housing assembly (10), and the second end portion (S2) of the first valve core (24) is sealed with the second end wall portion (12) of the valve housing assembly (10).

8. The control valve assembly (1) according to claim 5, characterized in that The valve core assembly (20) comprises a second valve core (25) and a third valve core (26) which are transmission-connected, the first conduction port (21) is located on the second valve core (25), and the second conduction port (22) is located on the third valve core (26).

9. The control valve assembly (1) according to claim 8, characterized in that The second valve core (25) comprises a second circumferential wall portion (251) and a fifth conduction port (252) located on the second circumferential wall portion (251); the third valve core (26) comprises a third circumferential wall portion (261) and a sixth conduction port (262) located on the third circumferential wall portion (261); the control valve assembly (1) further comprises a partition plate (33); the outer peripheral side of the partition plate (33) is sealed with the valve housing assembly (10); the inner peripheral side of the partition plate (33) is sealed with the valve core assembly (20); the fifth conduction port (252) and the sixth conduction port (262) are respectively arranged on both sides of the partition plate (33) in the thickness direction; In any working mode of the control valve assembly (1), the fifth conduction port (252) can be communicated with at least one of the selection ports (102), and the sixth conduction port (262) can be communicated with at least one of the selection ports (102).

10. The control valve assembly (1) according to claim 9, characterized in that The selection port (102) includes a sixth port (P6), a seventh port (P7), an eighth port (P8), a ninth port (P9), a tenth port (P10) and an eleventh port (P11); the sixth port (P6) and the seventh port (P7) are both connected to the third port (M3); the eighth port (P8) and the ninth port (P9) are both connected to the fourth port (M4); the tenth port (P10) and the eleventh port (P11) are both connected to the fifth port (M5); the fifth conduction port (252) can connect any one or two adjacent ones of the sixth port (P6), the eighth port (P8) and the tenth port (P10); and the sixth conduction port (262) can connect any one or two adjacent ones of the seventh port (P7), the ninth port (P9) and the eleventh port (P11).

11. The control valve assembly (1) according to any one of claims 8 to 10, characterized in that: The valve cavity (101) comprises a first sub-cavity and a second sub-cavity, at least a portion of the first sub-cavity and at least a portion of the second sub-cavity are arranged along the axial direction of the valve core assembly (20), the valve housing assembly (10) comprises a first housing portion (16) and a partition (33), the partition (33) is sealed and arranged in the first housing portion (16), the first housing portion (16) defines a portion of the wall of the first sub-cavity and the second sub-cavity, one side of the partition (33) in the thickness direction defines a portion of the wall of the first sub-cavity, and the other side of the partition (33) in the thickness direction defines a portion of the wall of the second sub-cavity; At least one of the second valve core (25) and the third valve core (26) passes through the partition plate (33) and is sealed with the partition plate (33).

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

13. The control valve assembly (1) according to claim 11, 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 second valve core (25) and the third valve core (26); The partition (33) includes a limiting portion (331), and the side of the second valve core (25) facing the third valve core (26) or the side of the third valve core (26) facing the second 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).

14. A fluid control device (2), characterized in that: The fluid control device (2) comprises a fluid part (40) and a control valve assembly (1) according to any one of claims 1 to 13, wherein at least a portion of the fluid part (40) is located in the valve housing assembly (10), and the fluid control device (2) 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).

15. The fluid control device (2) according to claim 14, 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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