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, the first opening and the second opening are arranged in an isolated mode, at least part of the valve element assembly is located in the valve cavity, and the valve element assembly can rotate around the axis; the valve element assembly comprises a first communicating opening and a second communicating opening which are formed in the extending direction of the axis in a spaced mode, and the first communicating opening and the second communicating opening are both located at the axial end of the valve element assembly. 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, and the first port and the second port are selectively communicated with different gating ports through the valve element assembly. 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 to meet the above-mentioned working mode requirements 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, wherein the control valve assembly can make the first port and the second port 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, thereby meeting 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, 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 is located in the valve cavity, the valve core assembly is rotatable around an axis, the valve core assembly comprises a first conduction port and a second conduction port spaced apart along an extending direction of the axis, the first conduction port is located at one axial end of the valve core assembly, and the second conduction port is located at the other axial end of the valve core assembly;

[0005] In any working mode of the control valve assembly, the first conduction port is communicated with the first port, the second conduction 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.

[0006] According to the control valve assembly provided by the embodiment of the present invention, the valve core assembly includes a first conducting port and a second conducting port arranged at intervals along the extension direction of the axis, and the first conducting port and the second conducting port are arranged 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 normally connected 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.

[0007] 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.

[0008] 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

[0009] Figure 1 is a schematic diagram of the three-dimensional structure of a control valve assembly provided by an embodiment of the present invention;

[0010] Figure 2 yes Figure 1 A schematic cross-sectional view of the control valve assembly at a first position;

[0011] Figure 3 is a schematic cross-sectional structural diagram of a fluid control device provided by an embodiment of the present invention;

[0012] Figure 4 yes Figure 3 FIG. 1 is a schematic diagram of an enlarged structure of a fluid control device at Q1;

[0013] Figure 5 yes Figure 2 A schematic diagram of the three-dimensional structure of the first valve core shown in FIG.

[0014] Figure 6 yes Figure 5 A schematic cross-sectional structural diagram of a first valve core at one position shown in FIG.

[0015] Figure 7 yes Figure 5 A schematic cross-sectional structural diagram of the first valve core at another position shown in FIG.

[0016] Figure 8 yes Figure 2 A schematic diagram of the structure of the control valve assembly in the first working mode shown in FIG.

[0017] Fig. 9 yes Figure 2A schematic diagram of the structure of the control valve assembly in the second working mode shown in FIG.

[0018] Fig.10 yes Figure 2 A schematic diagram of the structure of the control valve assembly in the third working mode shown in FIG.

[0019] Fig.11 yes Figure 2 A schematic structural diagram of the control valve assembly in the fourth working mode shown in FIG.

[0020] Fig.12 yes Figure 2 A schematic diagram of the structure of the control valve assembly in the fifth working mode shown in FIG.

[0021] Fig.13 yes Figure 2 A schematic diagram of the structure of the control valve assembly in the sixth working mode shown in FIG.

[0022] Fig.14 is a schematic diagram of the three-dimensional structure of a control valve assembly provided by another embodiment of the present invention;

[0023] Fig.15 yes Fig.14 A schematic cross-sectional view of the control valve assembly at a first position;

[0024] Fig.16 is a schematic cross-sectional structural diagram of a fluid control device provided by another embodiment of the present invention;

[0025] Fig.17 yes Fig.15 A front view structural schematic diagram of a control valve assembly shown in FIG.

[0026] Fig.18 yes Fig.17 A schematic diagram of the cross-sectional structure of the control valve assembly along the AA direction shown in FIG.

[0027] Fig.19 yes Fig.17 A schematic diagram of the cross-sectional structure of the control valve assembly along the BB direction shown in FIG.

[0028] Fig. 20 yes Fig.15 A schematic diagram of a portion of the structure of the valve housing assembly at one angle is shown in FIG.

[0029] Fig.21 yes Fig.15 A schematic diagram of a portion of the valve housing assembly at another angle is shown;

[0030] Fig. 22 yes Fig.15 A three-dimensional structural schematic diagram of the valve core assembly shown in FIG.

[0031] Fig.23 yes Fig. 22 A schematic diagram of the cross-sectional structure of the valve core assembly shown in FIG.

[0032] Fig.24 yes Fig.15 A schematic diagram of the structure of the control valve assembly in the first working mode shown in FIG.

[0033] Fig.25 yes Fig.15 A schematic diagram of the structure of the control valve assembly in the second working mode shown in FIG.

[0034] Fig.26 yes Fig.15 A schematic diagram of the structure of the control valve assembly in the third working mode shown in FIG.

[0035] Fig. 27 yes Fig.15 A schematic structural diagram of the control valve assembly in the fourth working mode shown in FIG.

[0036] Fig.28 yes Fig.15 A schematic diagram of the structure of the control valve assembly in the fifth working mode shown in FIG.

[0037] Fig.29 yes Fig.15 Schematic diagram of the structure of the control valve assembly in the sixth working mode.

[0039] 1. Control valve assembly; XX, axis; 104, drive chamber; 105, port; 10, valve housing assembly; 101, valve chamber; 102, selection port; 103, normal 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, pipe connection; 16, first housing; 20, valve core assembly; S1, first end; S2, second end; 21, first conduction port; 22, The second conducting port; 23, the transmission limit portion; 24, the first valve core; 241, the third conducting port; 242, the fourth conducting port; 243, the first circumferential wall portion; 244, the partition portion; 25, the second valve core; 251, the second circumferential wall portion; 252, the fifth conducting port; 26, the third valve core; 261, the third circumferential wall portion; 262, the sixth conducting port; 31, the driving assembly; 32, the transmission shaft; 33, the partition; 34, the second housing portion; 35, the third housing portion; 51, the first sealing assembly; 52, the second sealing member; 53, the third sealing member; 2, the fluid control device; 40, the fluid member; 411, the first flow path; 412, the second flow path; 42, the pump assembly; 422, the stator assembly; 423, the rotor assembly; 424, the bearing assembly; 425, the impeller assembly. DETAILED DESCRIPTION

[0040] 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.

[0041] like Figures 1 to 7 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.

[0042] like Figure 3As shown, the fluid control device 2 provided in the embodiment of the present invention includes a fluid part 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 part of the valve core assembly 20 is located in the valve housing assembly 10, and at least part of the fluid part 40 is located in the same valve housing assembly 10. Compared with the separate arrangement of the control valve assembly and the fluid part, the fluid control device 2 provided in the embodiment of the present invention has a higher degree of integration. The fluid control device 2 herein can be used as a module assembly in a vehicle thermal management system, has a higher degree of integration and occupies a smaller space.

[0043] In the embodiment of the present invention, the valve core assembly 20 can rotate, and the rotation of the valve core assembly 20 enables any of the normal-passage ports 103 to communicate with at least one of the gate ports 102. Specifically, the normal-passage ports 103 include a first port P1 and a second port P2, and 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, and the first flow path port 411 or the second flow path port 412 is communicated with the channel of the fluid part 40. For example, in the present embodiment, the first flow path port 411 is communicated with the channel of the fluid part 40, the first flow path port 411 is communicated with the first port P1 in the control valve assembly 1, and the second flow path port 412 is communicated with the second port P2 in the control valve assembly 1. Through the above arrangement, it is convenient to make the first flow path port 411 and the second flow path port 412 as normal-passage flow paths, so as to meet the working mode requirements of the fluid control device 2.

[0044] 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 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 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. 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.

[0045] like Figure 3As 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.

[0046] 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.

[0047] In order to realize the requirements of various working modes of the fluid control device 2, such as Figures 1 to 8 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 .

[0048] 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.

[0049] Optionally, at any working position of the valve core, the orthographic projection of the first conducting port 21 along the axis XX at least partially overlaps with the orthographic projection of the first port P1 along the axis XX, and the orthographic projection of the second conducting port 22 along the axis XX at least partially overlaps with the orthographic projection of the second port P2 along the axis XX. Herein, the first conducting port includes the first conducting port and the wall defining the first conducting port. Similarly, the first port P1 includes the first port P1 and the wall defining the first port P1, and the other ports also include the port and the wall defining the port.

[0050] In specific implementation, Figure 6 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 102 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 become normally connected ports, so as to meet the working mode requirements of the fluid control device 2.

[0051] like Figures 5 to 7 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. 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.

[0052] 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. 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 selection port 102 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 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), thereby reducing the length of the flow path between the pump assembly 42 and the valve core assembly 20, thereby reducing the flow resistance.

[0053] Combination Figure 2 , Figure 3 and Figure 6 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 is interference fit with the transmission limiter 23. Optionally, one of the transmission shaft 32 and the transmission limiter 23 includes a protrusion, and the other includes a groove, and the protrusion is embedded in the groove. In order to reduce the wear on the transmission limiter 23, in some embodiments, the control valve assembly 1 may further 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 limiter 23.

[0054] Further, 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. In this case, the transmission shaft 32 includes a metal material, and the rotor assembly 423 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 rotor assembly 423 of the pump assembly 42 and the valve core assembly 20 of the control valve assembly 1 are combined. Figure 3 and Figure 4As 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 .

[0055] 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 also 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. In this article, the transmission connection between the two components means that power can be transmitted between the two components, and the two components can be an interference fit or an integrated structure or power transmission can be achieved through a third component.

[0056] Further, the control valve assembly 1 further comprises a drive chamber 104, and the drive chamber 104 and the valve chamber 101 are fluidically isolated from each other, that is, the fluids between the drive chamber 104 and the valve chamber 101 do not interact with each other. At least part of the drive assembly 31 and part 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 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.

[0057] In order to isolate the drive chamber 104 from the valve chamber 101 by fluid, the valve housing assembly 10 includes a first housing portion 16, wherein the side wall 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 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 portion 16, and the second housing portion 34 and the first housing portion 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 portion 16 and the second housing portion 34, and the third housing portion 35 is sealed with the inner wall of the first housing portion 16, the second housing portion 34, the first housing portion 16 and the third housing portion 35 can all form part of the wall of the drive chamber 104, and the transmission shaft 32 is sealed with the third housing portion 35.

[0058] 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 portion 16. Figure 3As 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 housing portion 16, the stator assembly 422 of the pump assembly 42 can be integrally injection molded inside the third housing portion 35, and the third housing 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 housing portion 35 to prevent the fluid from entering the stator assembly 422 and damaging the coil assembly in the stator assembly 422.

[0059] like Figure 2 As 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.

[0060] 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, such as Figure 2 As shown, 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 integrated in the same valve housing assembly 10, a portion of the ports 105 of the control valve assembly 1 can overlap with the second flow path opening 412 or be spaced apart and connected, another portion of the ports 105 can overlap with the first flow path opening 411 or be spaced apart and connected, and another portion of the ports 105 can be arranged in the connecting pipe portion 15, and the connecting pipe portion 15 can be integrally arranged with the side wall portion 13 or be sealed and connected, or the connecting pipe portion can be integrally arranged with the end wall portion of the valve housing assembly 10 or be sealed and connected.

[0061] In some embodiments, the valve core assembly 20 includes a first valve core 24, the first valve core 24 includes a first circumferential wall portion 243, at least part of the first circumferential wall portion 243 is located between the first end S1 of the first valve core 24 and the second end 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 is connected with the first conduction port 21 to define a first conduction cavity, the fourth conduction port 242 is connected with the fourth conduction port 242 to define a second conduction cavity, and the third conduction port 241 and the fourth conduction port 242 are located on the same circumferential wall portion. Figure 6 As shown, the first valve core 24 further includes a partition 244 , and the first conduction cavity and the second conduction cavity are arranged on both sides of the partition 244 in the height direction.

[0062] 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 of the third port P3, the fourth port P4 and the fifth port P5 or two adjacent ones.

[0063] In some embodiments, the first circumferential wall portion 243 includes a spherical surface, the first end 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 S2 of the first valve core 24 is sealed with the second end wall portion 12 of the valve housing assembly 10. Optionally, in order to make the control valve assembly 1 have a better seal, 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 the first seal 51 is located between the first valve core 24 and the valve housing assembly 10. In order to reduce cross-flow, the second seal 52 is disposed adjacent to the first port P1 and the second seal 52 is located between the first valve core 24 and the valve housing assembly 10, and the third seal 53 is disposed adjacent to the second port P2 and the third seal 53 is located between the first valve core 24 and the valve housing assembly 10. Among them, the first sealing member 51 may 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 24 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.

[0064] 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, the third port M3, the fourth port M4 and the fifth port M5 are respectively connected to at least one gate port 102, and the control valve assembly 1 has at least one of the following working modes;

[0065] like Figure 8 As shown, 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 arrangement, the proportional adjustment between the fifth port M5 and the fourth port M4 can be achieved by rotating the first valve core 24.

[0066] like Fig. 9 As shown, 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 .

[0067] like Fig.10 As shown, 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 .

[0068] like Fig.11 As shown, in the fourth working mode of the control valve assembly 1, the first valve core 24 is located at 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 arrangement, the proportional adjustment between the fifth port M5 and the fourth port M4 can be achieved by rotating the first valve core 24.

[0069] like Fig.12 As shown, 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.

[0070] like Fig.13 As shown, 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 .

[0071] 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.

[0072] like Figures 14 to 28 FIG. 1 shows a control valve assembly 1 and a fluid control device 2 provided by another embodiment of the present invention. The control valve assembly 1 and the fluid control device 2 are Figures 1 to 13 The structure and installation method of the driving assembly of the control valve assembly 1 shown are similar, and the working mode of the control valve assembly 1 is similar to Figures 1 to 13 The working modes of the control valve assemblies 1 shown are at least partially the same. The difference between the two control valve assemblies 1 is at least that the structure of the valve core assembly 20 is different. Correspondingly, part of the structure of the valve housing assembly 10 is also adaptively changed.

[0073] Specifically, in Figures 14 to 28 In the control valve assembly 1 shown, 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 are interference-fitted 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. Among them, the first conduction port 21 is located at the second valve core 25, the second conduction port 22 is located at the third valve core 26, the first end S1 of the valve core assembly 20 is located at the second valve core 25, the second end S2 is located at the third valve core 26, and the transmission limit portion 23 is located at a side of the second valve core 25 close to the third valve core 26.

[0074] 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, and 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 be a spherical structure or a cylindrical structure, and the third circumferential wall portion 261 can be a spherical structure or a cylindrical structure.

[0075] 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 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 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 FIG. Fig.15 and Fig.16 As shown, 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 a seal is arranged between the protruding shaft portion of the second valve core 25 and the partition 33.

[0076] 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.

[0077] Furthermore, combined with Fig.14 and Fig.18As shown, the control valve assembly 1 provided in the embodiment of the present invention 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 part of the third housing portion 35 is located in 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 the drive chamber 104, and the drive assembly 31 is located in the drive chamber 104. Or applied to Fig.16 In the fluid control device 2 shown, when the fluid part 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 on the third housing portion 35, and the rotor assembly 423 is located inside the third housing portion 35. When the stator assembly 422 is powered on, it can drive the rotor assembly 423 to rotate, and the transmission 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.

[0078] To realize the working mode of the control valve assembly 1, as Figures 19 to 21 As shown, 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.

[0079] Combine the following Figures 24 to 28 The working mode of the control valve assembly 1 provided in the embodiment of the present invention is introduced. The control valve assembly 1 provided in the embodiment of the present invention has at least one of the following working modes:

[0080] like Fig.24 As shown, 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.

[0081] like Fig.25As shown, 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.

[0082] like Fig.26 As shown, 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.

[0083] like Fig. 27 As shown, 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 connected with the second port M2. Through the above arrangement, the proportional adjustment between the fifth port M5 and the fourth port M4 can be achieved by rotating the third valve core 26.

[0084] like Fig.28 As shown, 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.

[0085] like Fig.29 As shown, 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.

[0086] In summary, according to the control valve assembly 1 provided by the embodiment of the present invention, 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. By setting the extension lines of the axis XX to pass through the first conducting port 21 and the second conducting port 22, the valve core assembly 20 is able to maintain the position of at least a portion of the first conducting port 21 and at least a portion of the second conducting port 22 at any rotational position, thereby maintaining the communication relationship between the first conducting port 21 and the first port P1, and the communication relationship between the second conducting port 22 and the second port P2, thereby facilitating the first port P1 and the second port P2 to 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 to different selection ports 102, the control function of the control valve assembly 1 on multiple flow paths can be realized.

[0087] 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), 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 first port (P1) or the second port (P2) and is disposed in a limiting manner and in transmission connection 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); a 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 fourth conduction port (242), 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), the second conduction port (22) is located on the third valve core (26), 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 circumferential side of the partition plate (33) is sealed with the valve housing assembly (10), the inner circumferential 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; 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).

9. 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 8, 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).

10. The fluid control device (2) according to claim 9, characterized in that: The fluid component 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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