Fluid control assembly

Abstract

This application discloses a fluid control assembly, including a valve body, a first valve core, and a second valve core. The first and second valve cores are arranged axially, with the first valve core facing away from the bottom of the valve body. The valve body has a first valve cavity and a second valve cavity. The sidewall defining the second valve cavity is fixedly connected to or integrated with the sidewall defining the first valve cavity. At least a portion of the second valve core is located in the second valve cavity, and at least a portion of the first valve core is located in the first valve cavity. The sidewall defining the first valve cavity has a first valve port, and the sidewall defining the second valve cavity has a second valve port. In a direction perpendicular to the axis of the valve body, the second valve port is closer to the centerline of the valve body than the first valve port. A sealing flange is provided between the first and second valve cores, and the sealing flange is sealed and fixedly connected to the sidewall defining the second valve cavity. The first valve core has a first channel, and the second valve core has a second channel. The first channel can communicate with the first valve port, and the second channel can communicate with the second valve port, which is beneficial to improving the sealing performance of the fluid control assembly.

Description

Technical Field

[0001] This invention relates to the field of thermal management technology, and more specifically to a fluid control component for automotive or energy storage applications. Background Technology

[0002] In the field of fluid control technology, multi-channel control valves are commonly used to control flow paths, and even multiple valve cores can be combined to create different communication modes. However, the sealing performance of fluid control components needs improvement. Summary of the Invention

[0003] The purpose of this application is to improve the sealing performance of fluid control components.

[0004] To achieve the above objectives, this application adopts the following technical solution: a fluid control assembly, comprising a valve body, a first valve core, and a second valve core, wherein the first valve core and the second valve core are arranged axially along the first valve core, and the first valve core is further away from the bottom of the valve body than the second valve core. The valve body includes a first sidewall portion and a second sidewall portion that are fixedly connected or integrally formed, the first sidewall portion defining the sidewall of the first valve cavity, the second sidewall portion defining the sidewall of the second valve cavity, at least a portion of the second valve core being located in the second valve cavity, and at least a portion of the first valve core being located in the first valve cavity, the first sidewall portion having a first valve port, and the second sidewall portion having a second valve port, wherein in a direction perpendicular to the axis of the valve body, the second valve port is closer to the centerline of the valve body than the first valve port, the second valve core having a second channel, the first channel being able to communicate with the first valve port, and the second channel being able to communicate with the second valve port; a gap is formed between the first sidewall portion and the second sidewall portion along the radial direction of the second valve core, and the fluid control assembly further includes a reinforcing rib disposed in the gap, the reinforcing rib connecting the first sidewall portion and the second sidewall portion.

[0005] The fluid control assembly provided in this application has a first valve core and a second valve core arranged axially. At least a portion of the second valve core is located in the second valve cavity, and at least a portion of the first valve core is located in the first valve cavity. The first sidewall portion and the second sidewall portion are fixedly connected or integrated, meaning that at least a portion of the first valve core and the second valve core are installed in one valve body. This facilitates the integrated design of multiple valve cores and is beneficial for the miniaturization of the valve device. The first sidewall portion has a first valve port, and the second sidewall portion has a second valve port. In the direction perpendicular to the axis of the valve body, the second valve port is closer to the centerline of the valve body than the first valve port. That is, the axial cross-sectional dimension of the second valve cavity is smaller than the axial cross-sectional dimension of the first valve cavity. The first valve cavity and the second valve cavity do not share the same sidewall, which can reduce the risk of extrusion deformation of the same sidewall. At the same time, the first sidewall portion and the second sidewall portion are fixedly connected by reinforcing ribs, which helps to improve the structural strength of the sidewall of the second valve cavity and the sidewall of the first valve cavity, reduces the risk of deformation of the valve body that accommodates at least two valve cores, and helps to improve the sealing performance of the fluid control assembly. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of the overall structure of a fluid control component provided in an embodiment of this application;

[0007] Figure 2 yes Figure 1 Top view;

[0008] Figure 3 yes Figure 2 Cross-sectional view along the AA direction;

[0009] Figure 4 yes Figure 1 An explosion diagram;

[0010] Figure 5A and Figure 5B yes Figure 1 Schematic diagrams of the valve body from different perspectives;

[0011] Figure 6 This is the top view of Figure 5;

[0012] Figure 7 yes Figure 6 A cross-sectional view along the FF direction;

[0013] Figure 8 yes Figure 6 A cross-sectional view along the GG direction;

[0014] Figure 9 yes Figure 1 A schematic diagram of the sealing flange in the diagram;

[0015] Figure 10 yes Figure 1A schematic diagram of the structure of the second valve core in the diagram;

[0016] Figures 11-14 yes Figure 1 Schematic diagrams of the first valve core from different perspectives;

[0017] Figure 15 yes Figure 14 Cross-sectional views along the CC, DD, and EE directions respectively;

[0018] Figure 16 yes Figure 1 Assembly diagram of the first and second valve cores in the process;

[0019] Figure 17 yes Figure 16 A cross-sectional schematic diagram;

[0020] Figures 18-19 yes Figure 1 Schematic diagrams of the sealing gasket from different perspectives;

[0021] Figure 20 yes Figure 19 Cross-sectional view along the BB direction;

[0022] Figure 21 yes Figure 1 Schematic diagram of the middle valve body;

[0023] Figure 22 yes Figure 1 A schematic diagram of the different connection ports of the valve body;

[0024] Figure 23 This is an overall structural schematic diagram of another embodiment of the fluid control component;

[0025] Figure 24 yes Figure 1 A schematic diagram of the drive unit in the diagram;

[0026] Figures 25-26 This is a schematic diagram of the working mode of the fluid control component provided in the embodiments of this application.

[0027] The annotations in the figure are explained as follows:

[0028] 1. Valve body; 10. Valve body flow channel; 101. First valve chamber; 102. Second valve chamber; 103. Sealing groove; 104. Anti-shrinkage hole; 105. Reinforcing rib; 11. First valve port; 111. First layer valve port; 1111. First layer first sub-valve port; 1112. First layer second sub-valve port; 1113. First layer third sub-valve port; 1114. First layer fourth sub-valve port; 112. Second layer valve port; 1121. Second layer first... Sub-valve port; 1122, second sub-valve port on the second layer; 1123, third sub-valve port on the second layer; 1124, fourth sub-valve port on the second layer; 12, second valve port; 13, third valve port; 14, limiting member; 141, limiting unit; 151, first side wall portion; 152, second side wall portion; 3, first valve core; 31, first sub-channel portion; 311, first side plate; 30, first channel; 301, first sub-channel; 312, top plate 313. Intermediate plate; 314. First spindle; 32. Second sub-channel; 321. Second side plate; 302. Second sub-channel; 322. Base plate; 323. Second spindle; 324. Snap-fit ​​hole; 3230. Snap-fit ​​part; 2. Second valve core; 20. Second channel; 200. Limiting groove; 21. Third channel; 201. Sealing part; 202. Flow guide part; 23. Flow sidewall; 24. Support sidewall; 4 40. Sealing flange; 41. Mounting hole; 42. First recess; 5. Sealing assembly; 53. Sealing block; 64. Rubber ring; 7. Drive unit; 8. First double gear; 9. Second double gear; 10. Third double gear; 11. Output gear; 12. DC motor; 13. PCB circuit board; 14. Lower housing; 15. Upper housing; 16. Flow channel plate assembly; 17. Sealing gasket; 18. Connecting hole; 19. Cover. Detailed Implementation

[0029] As can be seen from the background technology, the sealing performance of fluid control components needs to be improved.

[0030] To address the aforementioned problems, this application provides a fluid control component. To make the objectives, technical solutions, and advantages of this invention clearer, the embodiments are further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0031] Please refer to Figures 1-4This application provides a fluid control assembly, including a valve body 1, a first valve core 3, and a second valve core 2. The first valve core 3 and the second valve core 2 are axially arranged, with the first valve core 3 facing away from the bottom of the valve body 1. The fluid control assembly has a first valve cavity 101 and a second valve cavity 102. The valve body 1 includes a first sidewall portion 151 and a second sidewall portion 152 that are fixedly connected or integrally formed. The first sidewall portion 151 defines the sidewall of the first valve cavity 101, and the second sidewall portion 152 defines the sidewall of the second valve cavity 102. At least a portion of the first valve core 3 is located in the first valve cavity 101. The sidewall defining the first valve cavity 101 has a first valve port 11. The sidewall of the second valve chamber 102 has a second valve port 12. In a direction perpendicular to the axis of the valve body 1, the second valve port 12 is closer to the centerline of the valve body 1 than the first valve port 11. The first valve core 3 has a first channel 30, and the second valve core 2 has a second channel 20. The first channel 30 can communicate with the first valve port 11, and the second channel 20 can communicate with the second valve port 12. Along the radial direction of the second valve core 2, there is a gap between the first sidewall portion 151 and the second sidewall portion 152. The fluid control assembly also includes a reinforcing rib 105, which is disposed in the gap and connects the first sidewall portion 151 and the second sidewall portion 152. It should be noted that, in the following text, the sidewall of the first valve chamber 101 refers to the first sidewall portion 151, and the sidewall of the second valve chamber 102 refers to the second sidewall portion 152.

[0032] The integral structure of the sidewall defining the second valve cavity 102 and the sidewall defining the first valve cavity 101 means that the valve body can be integrally injection molded. In other embodiments, the sidewall defining the second valve cavity 102 and the sidewall defining the first valve cavity 101 are fixedly connected, which can be by bonding, hot riveting, plastic coating, etc. The fixing method is not limited, as long as it can ensure that the sidewall defining the first valve cavity and the sidewall defining the second valve cavity are fixed together.

[0033] The fluid control assembly provided in this application has a first valve core and a second valve core arranged axially. At least a portion of the second valve core is located in the second valve cavity, and at least a portion of the first valve core is located in the first valve cavity. The sidewall defining the second valve cavity is fixedly connected to or integrated with the sidewall defining the first valve cavity, meaning that at least a portion of the first valve core and the second valve core are installed in one valve body. This facilitates the integrated design of multiple valve cores and is beneficial for the miniaturization of the valve device. The sidewall defining the first valve cavity has a first valve port, and the sidewall defining the second valve cavity has a second valve port. In the direction perpendicular to the axis of the valve body, the second valve port is closer to the centerline of the valve body than the first valve port. That is, the axial cross-sectional dimension of the second valve cavity is smaller than that of the first valve cavity. The wall portion defining the second valve cavity and the wall portion defining the first valve cavity are fixedly connected by reinforcing ribs, which helps to improve the structural strength of the sidewall of the second valve cavity and the sidewall of the first valve cavity, reduces the risk of valve body deformation, and helps to improve the sealing performance of the fluid control assembly.

[0034] A sealing flange 4 is provided between the first valve core 3 and the second valve core 2, and the sealing flange 4 is sealed and fixedly connected to the side wall defining the second valve cavity 102. The sealing flange 4 defines the top wall and bottom wall of the second valve cavity 102. By providing a sealing flange between the first valve core and the second valve core, the sealing performance of the fluid control assembly can be improved. The sealing flange is fixedly connected to the valve body, for example, by laser welding, which can further improve the sealing performance. Of course, in other embodiments, the sealing flange can also be fixed to the valve body by bonding, bolting, or other means. A sealing ring can also be provided at the mating point between the sealing flange and the second mandrel of the second valve core to improve the sealing performance. In this way, when the fluid pressure is too high, the sealing flange can reduce the risk of fluid leakage between the first valve core and the second valve core. Similarly, to improve the sealing performance, the valve body and the sealing flange are installed using laser welding. Regardless of how the sealing flange is fixedly connected to the valve body, if the connection of the sealing flange is not firm, it may lead to eventual seal failure. Therefore, improving the connection strength between the sealing flange and the valve body becomes a key issue. For example, if the first and second valve chambers are not distinguished within the same valve body, and the first and second valve cores are placed as a whole within one valve chamber, the sealing flange is directly welded to the valve body. This welding can only be done to the side wall of the valve body, resulting in poor welding performance due to the limited welding space. Increasing the contact area between the valve body and the sealing flange can improve the connection or welding strength between them, further enhancing the sealing performance of the valve assembly. Specifically, the axial cross-sectional dimension of the second valve chamber should be smaller than that of the first valve chamber, meaning the wall of the second valve chamber should have a certain thickness. The sealing flange should be sealed and fixedly connected to the side wall that defines the second valve chamber. This provides more space for fixing the sealing flange within the wall of the second valve chamber, which is beneficial for improving the sealing performance of the fluid control components.

[0035] The fluid control components provided in this application can be used in thermal management systems such as air conditioning, motor electronic control cooling, battery cooling and heating, and waste heat recovery for new energy vehicles, or they can also be used in energy storage systems.

[0036] The types of the first valve core and the second valve core are not limited. For example, the first valve core and the second valve core can both be column valves, or the first valve core and the second valve core can both be ball valves. Of course, one of the first valve core and the second valve core can be a ball valve and the other can be a column valve.

[0037] refer to Figures 3-8To enhance the flow rate regulation function, in one specific embodiment, the circumferential surface of the second valve core 2 forming at least the second channel 20 is spherical, and the second channel 20 can connect at least two second valve ports 12. The fluid control assembly also includes a sealing assembly 5, which abuts against the wall defining the second valve port 12 and the second valve core 2. The wall defining the second valve port 12 also includes a limiting member 14, at least a portion of which is located on the side of the second valve port 12 away from the first valve core 1. Figure 5A As shown, at least part of the limiting member 14 is located below the second valve port 12. The limiting member 14 has an arc-shaped structure in the direction towards the second valve port 12. The sealing flange 4 has a recess 41, and at least part of the recess 41 is located on the side of the second valve port 12 near the first valve core 1. Figure 5A As shown, at least some of the recesses 41 are located above the second valve port 12. The number of recesses 41 is equal to the number of sealing components 5 and they are correspondingly arranged. The recesses 41 and the limiting member 14 axially limit the sealing component to prevent the sealing component from shifting during the rotation of the second valve core 2, reduce the possibility of internal leakage of the valve body 1, and thus further improve the sealing effect.

[0038] The overall structure of the limiting component is not limited, as long as it can achieve the effect of "enclosing the sealing assembly". For example, the limiting component can have a recess similar to that of a sealing flange. In other embodiments, the limiting component can also be composed of multiple limiting units combined together to form the effect of "enclosing" the sealing assembly. Please refer to [reference needed]. Figure 7 The limiting member 14 has an arc-shaped structure in the direction facing the second valve port 12, which means that the outer surface of the limiting member in the direction facing the sealing assembly is arc-shaped. Figure 7 As shown by the dashed line.

[0039] The valve body 1 can be surface-mounted or connected to the flow channel plate via a pipe connection. Taking surface-mounted valve body 1 as an example, the valve body flow channel includes interconnected valve ports and connection ports. All connection ports of valve body 1 are located on the same plane, for example, at the bottom of the valve body. It is easy to understand that sealing grooves 103 can be provided between different connection ports of the valve body, and sealing devices are installed within the sealing grooves 103 to improve sealing performance. The limiting member 14 is fixed to the valve body 1 or integrally formed on the side of the valve body opposite to the sealing groove 103. In one specific embodiment, the limiting member 14 includes a plurality of limiting units 141, each limiting unit 141 being distributed circumferentially along the second valve port 12, each limiting unit 141 having an arc-shaped surface, the extension surfaces of the arc-shaped surfaces of each limiting unit 141 being coplanar, each limiting unit 141 being spaced apart circumferentially along the second valve port 12 and arranged in an arc-shaped structure, each limiting unit 141 being fixedly connected to the bottom of the valve body 1, and a sealing groove 103 being provided on the bottom surface of the valve body 1 facing away from the second valve core 2, the depth direction of the sealing groove 103 extending towards the sealing assembly 5 along the axial direction of the valve body 1.

[0040] Along the axial direction of the valve body, since the limiting member 14 and the sealing groove 103 are located on both sides of the bottom of the valve body 1, the thickness of the limiting member 14 will have a certain influence on the shape of the sealing groove 103 during the valve body forming process. By processing the limiting member 14 into the form of limiting unit 141, and each limiting unit 141 is distributed along the circumference of the second valve port 12, the amount of limiting member 14 can be reduced, the contact area between the limiting member 14 and the bottom of the valve body 1 can be reduced, and the shrinkage deformation of the sealing groove 104 can be reduced during the processing of the valve body 1, thereby further improving the sealing performance of the valve device.

[0041] Continue to refer to Figure 5A As shown in Figure B, to reduce the shrinkage deformation of the second valve cavity 102 and avoid interference between the second valve core 2 and the side wall of the second valve cavity 102 during rotation, which could lead to jamming, wear, leakage, and other risks, and to further improve the sealing performance of the valve device, in one specific embodiment, the wall defining the second valve cavity 102 may also have anti-shrinkage holes 104, which are distributed circumferentially along the second valve cavity 102. Furthermore, when the sealing flange 4 is welded to the side wall defining the second valve cavity, the anti-shrinkage holes 104 can also serve to collect solder.

[0042] The sidewall defining the second valve chamber 102 can have a gap with the valve body, or it can be completely sealed and fixedly connected. To reduce material usage and lower the risk of valve body 1 shrinkage and deformation, in one specific embodiment, the sidewall defining the second valve chamber 102 has a gap with the sidewall defining the first valve chamber 101. The fluid control assembly also includes a reinforcing rib 105, which is disposed at the gap. The reinforcing rib 105 is used to connect the wall portion defining the second valve chamber 102 and the wall portion defining the first valve chamber 101. The reinforcing rib can increase the stability of the fixed connection between the sidewall of the second valve chamber and the valve body.

[0043] Specifically, such as Figure 5B As shown, the second sidewall portion 152 includes a flow-through sidewall 23 and a support sidewall 24 that are fixedly connected and circumferentially spaced apart. The second valve port 12 is opened on the flow-through sidewall 23. The reinforcing rib 105 is located between the support sidewall 24 and the first sidewall portion 151. The reinforcing rib 105 extends radially along the second valve core 2.

[0044] There are at least two flow-through sidewalls 23 and at least two support sidewalls 24. At least two reinforcing ribs 105 are connected to each support sidewall 24. The reinforcing ribs 105 are arranged circumferentially around the support sidewalls 24. To further enhance the connection effect of the reinforcing ribs and improve the symmetry of the overall valve body structure, the extension surface of each reinforcing rib 105 can pass through the centerline of the valve body. Each flow-through sidewall 23 and each support sidewall 24 can be symmetrical about the centerline of the valve body.

[0045] like Figure 8 As shown, along the axial direction of the valve body 1 and close to the first valve core 3, the support sidewall 24 is closer to the first valve core 3 than the reinforcing rib 105. The support sidewall, the reinforcing rib 105, and the first sidewall portion 151 form a limiting groove 200. The fluid control assembly also includes a sealing gasket 8, which has a connecting hole 80 corresponding to the first valve port 11. A portion of the sealing gasket 8 is located in the limiting groove 200. In one specific embodiment, along the axial direction of the valve body 1, the sealing flange 4 is closer to the first valve core 3 than the reinforcing rib 105. The reinforcing rib 105 extends radially along the second valve core 2. That is, the height of the reinforcing rib 105 can be lower than the height of the end face of the wall defining the second valve cavity 102 facing the first valve core. By lowering the height of the reinforcing rib 105 below the height of the wall defining the second valve cavity 102, it facilitates bottom support for the sealing gasket of the subsequent first valve core 3. The sealing rib 105 is embedded in the groove formed by the side wall of the second valve cavity 102, the reinforcing rib 105, and the side wall of the first valve cavity 101, preventing the sealing gasket from tilting and further improving the sealing performance of the valve device. Figure 6 As shown, the reinforcing rib 105 extends in a direction intersecting the center O of the valve body 1. This improves the overall structural symmetry of the valve body 1, thereby further enhancing its strength. In other embodiments, the height of the reinforcing rib can be the same as the height of the wall defining the second valve cavity. Sealing ribs or other components can serve as the bottom support for the sealing gasket, as long as the area in contact with the sealing gasket is a plane.

[0046] Furthermore, the support sidewall 24 may also have anti-shrinkage holes 104, which include blind hole structures penetrating the end face facing the first valve core 3. The anti-shrinkage holes 104 are distributed circumferentially along the second valve cavity 102, and along the radial direction of the second valve cavity 102, at least a portion of the hole wall of the anti-shrinkage holes 104 corresponds to the reinforcing rib 105. Figure 5B As shown, the correspondence between the hole wall of the anti-shrinkage hole 104 and the reinforcing rib 105 means that, along the radial direction of the second valve cavity 102, the extension surface of the hole wall of the anti-shrinkage hole 104 and the extension surface of the reinforcing rib 105 substantially coincide. In a specific embodiment, to improve the strength of the first sidewall portion, reinforcing ribs 105 are provided on both sides of each anti-shrinkage hole 104 along the circumferential direction of the second sidewall portion.

[0047] refer to Figure 10 The second valve core 2 includes a blocking part 201 and a flow guiding part 202. A second channel 20 is formed in the flow guiding part 202. The second channel 20 extends circumferentially along the second valve core 2 and can connect to at least one second valve port 12.

[0048] refer to Figures 11-17In order to increase the flow channel switching mode, in one specific embodiment, the first valve core 3 may include a first sub-channel portion 31 and a second sub-channel portion 32 arranged along the axial direction. The first channel 30 includes a first sub-channel 301 and a second sub-channel 302. The first sub-channel 301 is located in the first sub-channel portion 31, and the second sub-channel 302 is located in the second sub-channel portion 32. The first sub-channel portion 31 and the second sub-channel portion 32 may be an integral structure, or the first sub-channel portion 31 and the second sub-channel portion 32 may be separately arranged and sealed together.

[0049] The first valve core 3 has a first spindle 314, and the bottom of the first valve core 3 opposite to the first spindle 314 has a snap-fit ​​hole 324. The sealing flange 4 has a mounting hole 40. The second valve core 2 has a second spindle 323, and the second spindle 323 has a snap-fit ​​part 3230. The snap-fit ​​part 3230 passes through the mounting hole 40 and is limited and engaged with the snap-fit ​​hole 324. The fluid control assembly also includes a drive device 6, which is connected to the first spindle 314 to drive the first valve core 3 and the second valve core 2 to rotate synchronously.

[0050] Combination Figure 3 refer to Figures 18-20 The first valve core 3 can be a column valve. To improve the sealing performance of the first valve core 3, in one specific embodiment, the fluid control assembly further includes a sealing gasket 8. The sealing gasket 8 has a connecting hole 80 corresponding to the first valve port 11. The wall of the connecting hole 80 is sloped in the direction close to the valve body. Figure 20 (In the R direction), the size of the connecting hole 80 gradually decreases. For example... Figure 18 As shown, taking a thickened connecting hole as an example, the opening size of the connecting hole decreases along the R direction. It should be noted that a slope can be provided around the connecting hole. This is achieved by creating a slope around the connecting hole of the sealing gasket, along the direction closest to the valve body (…). Figure 20 In the R direction, the size of the connecting hole 80 gradually decreases, which can reduce the operating torque of the valve core and play a buffering role.

[0051] Continue to refer to Figure 4 and Figure 17The first valve core 3 and the second valve core 2 are mechanically linked, meaning they are fixedly connected. Rotation of the first valve core 3 causes the second valve core 2 to rotate synchronously. For example, one of the first valve core 3 and the second valve core 2 may have a groove, while the other has a protrusion matching the shape of the groove. The fixed connection between the first valve core 3 and the second valve core 2 is achieved by utilizing the groove and the protrusion in conjunction. The shape of the protrusion is not limited; it can be cylindrical, splined, or have a regular or irregular polygonal cross-section, as long as the protrusion and groove can fit together and there is no relative rotation between the first valve core 3 and the second valve core 2. In one specific embodiment, for ease of manufacturing, the first valve core 3 has a groove at its bottom, and the second valve core 2 has a protrusion matching the shape of the groove at its top. A fixed and transmission connection between the first valve core 3 and the second valve core 2 is achieved by embedding the protrusion of the second valve core 2 into the groove of the first valve core 3. Of course, to facilitate the installation of the relative positions of the first valve core 3 and the second valve core 2, the protrusion can be an irregular spline shaft.

[0052] The fluid control component provided in this application has a mechanically linked first valve core and a second valve core, and a sealing flange is provided between the first valve core and the second valve core. While reducing the risk of fluid leakage between the first valve core and the second valve core, the second valve core can rotate synchronously when the first valve core rotates. That is, this structure can simultaneously switch the fluid flow direction in the first valve core and the second valve core, ensuring the consistency of the action of the first valve core and the second valve core, and avoiding the problem of poor accuracy of the designated position of the second valve core due to relative rotation of the first valve core and the second valve core during rotation.

[0053] The first channel 30 includes a first sub-channel 301 and a second sub-channel 302. The first sub-channel 301 is located on the side of the first valve core 3 opposite to the second valve core, such as... Figure 11 As shown, the first sub-channel 301 is located above the first valve core 3, and the first sub-channel 301 has a circumferential opening. The second sub-channel 302 is located on the side of the first valve core 3 closer to the second valve core, as shown. Figure 11 As shown, the second sub-channel 302 is located below the first valve core 3, and the second sub-channel 302 has a circumferential opening; the first valve port 11 includes a first layer valve port 111 and a second layer valve port 112. The first layer valve port 111 is arranged at intervals along the circumference of the valve body 1, and the second layer valve port 112 is arranged at intervals along the circumference of the valve body 1. The first layer valve port 111 and the second layer valve port 112 are arranged along the axial direction of the first valve core 3. The first sub-channel 301 can connect to the first layer valve port 111, and the second sub-channel 302 can connect to the second layer valve port 112.

[0054] refer to Figure 21 , Figure 21In one specific embodiment, the valve body is divided into two halves along the central section L of the valve body. The first valve port 111 includes a first sub-valve port 1111, a second sub-valve port 1112, a third sub-valve port 1113, and a fourth sub-valve port 1114. The first sub-valve port 1111 and the third sub-valve port 1113 are symmetrically arranged about the center line of the first valve core 3, and the second sub-valve port 1112 and the fourth sub-valve port 1114 are symmetrically arranged about the center line of the first valve core 3.

[0055] The second-layer valve port 112 includes a second-layer first sub-valve port 1121, a second-layer second sub-valve port 1122, a second-layer third sub-valve port 1123, and a second-layer fourth sub-valve port 1124. The second-layer first sub-valve port 1121 and the second-layer third sub-valve port 1123 are symmetrical about the centerline of the first valve core 3, and the second-layer second sub-valve port 1122 and the second-layer fourth sub-valve port 1124 are symmetrically arranged about the centerline of the first valve core 3. The valve body includes multiple valve body flow channels 10, wherein the first-layer second sub-valve port 1121... Valve port 1112 and second-layer first sub-valve port 1121 can be connected to the same valve body flow channel 10, and first-layer fourth sub-valve port 1114 and second-layer third sub-valve port 1123 can be connected to the same valve body flow channel 10; first-layer first sub-valve port 1111 and second-layer second sub-valve port 1122 are respectively located on both sides of the circumference of first-layer second sub-valve port 1112, and first-layer third sub-valve port 1113 and second-layer fourth sub-valve port 1124 are respectively located on both sides of the circumference of first-layer fourth sub-valve port 1114;

[0056] By connecting the second sub-valve port 1112 of the first layer and the first sub-valve port 1121 of the second layer to the same valve body flow channel 10, and connecting the fourth sub-valve port 1114 of the first layer and the third sub-valve port 1123 of the second layer to the same valve body flow channel 10, the first channels of different layers of the first valve core can be connected to the same valve body flow channel, thereby increasing the flow channel connection mode.

[0057] The second valve port 12 includes a first second valve port 121 and a second second valve port 122, which are symmetrical about the center of the valve body; the second channel of the second valve core 2 can connect to at least one second valve port 12.

[0058] As shown in Figures 5 and 9, the bottom of the second valve core 2 opposite to the first valve core 3 has a third channel 21, which is connected to the second channel 20. The valve body 1 includes a third valve port 13, which is located at the bottom of the valve body 1 and is correspondingly arranged with the third channel 21. The second channel 20 can connect at least one second valve port 12 and a third valve port 13.

[0059] It should be noted that the first valve port and the second valve port are arranged along the axial direction of the valve body. This means that along the axial direction of the valve body, the first valve port and the second valve port are located on different axial cross sections of the valve body. Since the first valve core and the second valve core are arranged axially, the first valve port can communicate with the first channel of the first valve core, and the second valve port can communicate with the second channel of the second valve core. Therefore, the first valve port and the second valve port are located at different heights of the valve body. The arrangement of the first valve port and the second valve port along the axial direction of the valve body in this application is only to indicate that the first valve port and the second valve port are located at different heights of the valve body, and does not limit the correspondence between the first valve port and the second valve port. For example, the axial projection of the second valve port can completely or partially overlap with the axial projection of the first valve port, or the axial projection of the second valve port can be located on either side of the axial projection of the first valve port.

[0060] like Figure 21 As shown, in one specific embodiment, to ensure that the flow channel remains connected throughout the rotation of the first valve core 3, the number of first-layer valve ports 111 is at least two sets, with at least two first-layer valve ports 111 in each set, and the two sets of first-layer valve ports 111 are symmetrically distributed circumferentially. Similarly, the number of second-layer valve ports 112 is at least two sets, with at least two second-layer valve ports 112 in each set, and the two sets of second-layer valve ports 112 are symmetrically distributed circumferentially. The first sub-channel 301 can connect to each set of first-layer valve ports 111, and the second sub-channel 302 can connect to each set of second-layer valve ports 112. Thus, during synchronous rotation of the first and second valve cores, different first and second valve ports can be connected respectively, increasing the flow channel connectivity modes.

[0061] To reduce the contact area between the first valve core and the sealing gasket, and to lower the rotational torque of the first valve core, combined with Figure 16 and Figure 17 In one specific embodiment, the first sub-channel portion 31 includes a first side plate 311, a top plate 312, and an intermediate plate 313. The first side plate 311 is fixed between the top plate 312 and the intermediate plate 313, and the first side plate 311, top plate 312, and intermediate plate 313 define the first sub-channel 301. The second sub-channel portion 32 includes a second side plate 321 and a bottom plate 322. The second side plate 321 is fixed to the bottom plate 322. The intermediate plate 313, second side plate 321, and bottom plate 322 define the second sub-channel 302. The top plate 312, intermediate plate 313, and bottom plate 322 each have an abutment portion that protrudes along the circumferential direction of the top plate 312, intermediate plate 313, and bottom plate 322. The first valve core abuts against the sealing gasket 8 through the abutment portion. It should be noted that the interior of the first side plate and the second side plate can be a hollow structure to reduce the deformation of the first valve core during processing.

[0062] The opening central angle range of the first sub-channel is related to the maximum central angle range of each group of first-layer valve ports. Similarly, the opening central angle range of the second sub-channel 302 is related to the maximum central angle range of each group of second-layer valve ports. In a specific embodiment, the shape of the first sub-channel 301 along the axial projection direction of the first valve core 3 is semi-circular, and the maximum shape of the second sub-channel 302 along the axial projection direction of the second valve core 2 is semi-circular. The included angle range of the two semi-circles is 40°-50° to ensure that the flow rate ratio can be adjusted even in the flow channel switching mode.

[0063] Combined with Figure 5 and Figure 17 In order to increase the flow rate adjustment range, in one specific embodiment, the bottom of the second valve core 2 opposite to the second spindle has a third channel 21, the third channel 21 is connected to the second channel 20, the valve body includes a third valve port 13, the third valve port 13 is located at the bottom of the valve body, and the third valve port 13 is correspondingly arranged with the third channel 21; the second channel 20 can connect the second valve port and the third valve port 13 or simultaneously connect two second valve ports and one third valve port 13.

[0064] Please refer to Figure 22 To facilitate integration of the valve body into the flow channel plate, the valve body 1 also includes nine connection ports: connection port 1-1, connection port 2-2, connection port 3-1, connection port 1-2, connection port 4-4, connection port 3-2, connection port x, connection port y, and connection port z. Connection port 1-1 connects to the first sub-valve port 1111 of the first layer, which is connected to the same valve body flow channel. Connection port 2-2 connects to the second sub-valve port 1112 of the first layer and the first sub-valve port 1121 of the second layer, which are connected to the same valve body flow channel. Connection port 3-1 connects to the second sub-valve port 1122 of the second layer, which is connected to the same valve body flow channel. Connection port 1-2 connects to the third sub-valve port 1111 of the first layer. 3. Connecting ports 4-4 and 3-2 are connected to the same valve body flow channel as the first layer fourth sub-valve port 1114 and the second layer third sub-valve port 1123 respectively. Connecting ports 3-2 and 3-3 are connected to the same valve body flow channel as the second layer fourth sub-valve port 1124. Connecting port x is connected to the same valve body flow channel as the third valve port 13. Connecting port y is connected to the same valve body flow channel as the second valve port 121. Connecting port z is connected to the same valve body flow channel as the second valve port 122. When the first sub-channel 301 is connected to the first layer valve port 111, the second sub-channel 302 is connected to the second layer valve port 112, and the second channel 20 is connected to the second valve port 12. Figure 22 The valve ports that connect to each connection point cannot be shown, so they are indicated by dashed lines here.

[0065] Please refer to Figures 23-25In order to achieve flow ratio adjustment in mode switching state, in a specific embodiment, the fluid control component further includes a flow channel plate assembly 7. The flow channel plate assembly 7 and the valve body 1 are fixedly connected or integrated. The flow channel plate assembly 7 includes four flow channels that can communicate with the first valve port 11, namely the first flow channel I, the second flow channel II, the third flow channel III, and the fourth flow channel IV. Among them, the connection port 1-1 and the connection port 1-2 are connected to the first flow channel I, the connection port 2-2 is connected to the second flow channel II, the connection port 3-1 and the connection port 3-2 can both be connected to the third flow channel III, and the connection port 4-4 is connected to the fourth flow channel IV.

[0066] The flow channel plate assembly 7 also includes two flow channels that can communicate with the second valve port 12, namely the fifth flow channel Y and the sixth flow channel Z, and the seventh flow channel X that communicates with the third valve port 13. Connection port y connects to the fifth flow channel Y, connection port z connects to the sixth flow channel Z, and connection port x connects to the seventh flow channel X. The flow channel plate assembly 7 is fixedly connected to the valve body 1. The fixed connection method can be welding, bonding, bolting, etc. Of course, in other embodiments, the valve body and the flow channel plate assembly can also be integrated. The flow channel plate assembly 7 includes four flow channels that can communicate with the first valve port 11, namely the first flow channel I, the second flow channel II, the third flow channel III, and the fourth flow channel IV. Connection ports 1-1 and 1-2 connect to the first flow channel I, connection port 2-2 connects to the second flow channel II, and connection ports... Both 3-1 and 3-2 can connect to the third flow channel Ⅲ, and 4-4 can connect to the fourth flow channel Ⅳ; the first sub-valve port 1111 and the third sub-valve port 1113 of the first layer can connect to the first flow channel Ⅰ, the second sub-valve port 1112 of the first layer and the first sub-valve port 1121 of the second layer can connect to the first flow channel Ⅱ, the second sub-valve port 1122 and the fourth sub-valve port 1124 of the second layer can connect to the third flow channel Ⅲ, and the fourth sub-valve port 1114 of the first layer and the third sub-valve port 1123 of the second layer can connect to the fourth flow channel Ⅳ;

[0067] The flow channel plate assembly 7 also includes two flow channels that can communicate with the second valve port 12, namely the fifth flow channel Y, the sixth flow channel Z, and the seventh flow channel X that communicates with the third valve port 13. The connection port y corresponding to the second valve port 12 can communicate with the fifth flow channel Y, the connection port z corresponding to the second valve port 12 can communicate with the sixth flow channel Z, and the connection port x corresponding to the third valve port 13 can communicate with the seventh flow channel X.

[0068] With the first sub-channel 301 connected to the first layer valve port 111, the second sub-channel 302 is connected to the second layer valve port 112, and the second channel 20 is connected to the second valve port 12.

[0069] As can be seen, the fluid control component provided in this application, by connecting two first valve ports to the same valve body flow channel, and allowing the first and second sub-channels of the first valve core located at different layers to connect to the same valve body flow channel, not only increases the number of fluid operating modes but also reduces the number of connection ports, facilitating subsequent installation with the flow channel plate. Furthermore, when installing the connection ports with the flow channel plate, two different connection ports can connect to the same flow channel plate flow channel, thereby reducing the number of pipes, making the structure more compact, and improving the degree of integration. Simultaneously, since the first valve core can maintain connection to the same flow channel plate flow channel at a certain angle during rotation, the function of flow ratio adjustment under flow channel mode switching can also be achieved by switching different valve ports during the rotation of the second valve core.

[0070] like Figure 4 As shown, in one specific embodiment, the first valve core 3 has a first spindle 314, and the bottom of the first valve core 3 opposite to the first spindle 314 has a snap-fit ​​hole 324. The sealing flange 4 has a mounting hole 40. The second valve core 2 has a second spindle 323, and the second spindle 323 has a snap-fit ​​portion 3230. The snap-fit ​​portion 3230 passes through the mounting hole 40 and is limited and engaged with the snap-fit ​​hole 324. Figure 10 As shown, the fluid control assembly also includes a drive device 6, which is connected to the first spindle 3 to drive the first valve core 3 and the second valve core 2 to rotate synchronously. It can be seen that only one drive device is needed to drive and control the first valve core 3 and the second valve core 2, resulting in simple control, a compact structure, and low cost.

[0071] Specifically, such as Figure 24 As shown, the drive device 6 includes an upper housing 68, a lower housing 67, a PCB circuit board 66, a DC motor 65, a first double gear 61, a second double gear 62, a third double gear 63, and an output gear 64. The upper housing 68 and the lower housing 67 are mounted using laser welding. The drive method in this application involves the PCB circuit board 66, which is thermally riveted to the upper housing 68, controlling the forward and reverse rotation of the DC motor according to the LIN signal emitted by the integrated circuit. The DC motor drives the first valve core 3 to rotate through a four-stage transmission of the first double gear 61, the second double gear 62, the third double gear 63, and the output gear 64. The rotation angle of the first valve core 3 is then controlled by a Hall sensor to achieve mode switching.

[0072] It should be noted that, in the fluid control assembly of this application, along the axial direction of the fluid control assembly, either the first valve core or the second valve core can be located on the side closer to the drive device, and the other can be located on the side away from the drive device. For example, if the first valve core is a column valve and the second valve core is a ball valve, then in one embodiment, the ball valve is on top and the column valve is on the bottom; in another embodiment, the column valve can be on top and the ball valve on the bottom. Of course, the sealing flange changes accordingly with the position of the ball valve, so that the sealing flange covers the top of the ball valve.

[0073] The structure of the fluid control component has been introduced above. The following describes its operating modes. This nine-way valve functionally achieves all operating modes of a combination of a three-way proportional valve and a four-way switching valve, while retaining the large-ratio adjustment function in the three-way section. It should be noted that in all the following modes, the flow channels operate independently within the valve body, preventing water mixing. The flow rate and fluid pressure changes in each flow channel can be adjusted according to changes in the port structure.

[0074] In mode 1, the first sub-channel 301 of the first valve core 3 connects the first sub-valve port 1111 and the second sub-valve port 1112 of the first layer, and the first flow channel I and the first flow channel II are connected; the second sub-channel 302 of the first valve core 3 connects the third sub-valve port 1123 and the fourth sub-valve port 1124 of the second layer, and the third flow channel III and the fourth flow channel IV are connected; the second channel (20) of the second valve core 2 connects the third valve port 13 and the second valve port, and the fifth flow channel Y and the seventh flow channel X are connected.

[0075] refer to Figure 25 In the working mode, for the first sub-valve core, the first flow channel and the second flow channel are connected through the first sub-channel; for the second sub-valve core, the third flow channel and the fourth flow channel are connected through the second sub-channel; and for the second valve core, the fifth flow channel and the seventh flow channel are connected through the second channel and the third channel.

[0076] refer to Figure 26 In Figure (a) of the diagram, in one specific embodiment, the first valve core is a column valve, and the second valve core is a ball valve. The ball valve is located below the column valve. In the initial state, the second valve core connects to connection port x and connection port y. The upper layer of the first valve core: connection port 1-1 connects to connection port 2-2, and the lower layer of the first valve core: connection port 3-2 connects to connection port 4-4. The implementation of mode one is as follows: the driving device drives the first and second valve cores to rotate to a set mode angle of 10°. In the lower ball valve, fluid flows in along connection port x and flows out from connection port y. In the upper column valve, fluid flows in along connection port 1-1 and flows out along connection port 2-2; and also flows in along connection port 3-2 and flows out along connection port 4-4.

[0077] In mode 2, the first sub-channel 301 of the first valve core 3 connects the first sub-valve port 1111 and the second sub-valve port 1112 of the first layer, and the first flow channel I and the first flow channel II are connected; the second sub-channel 302 of the first valve core 3 connects the third sub-valve port 1123 and the fourth sub-valve port 1124 of the second layer, and the third flow channel III and the fourth flow channel IV are connected; the second channel (20) of the second valve core 2 connects the third valve port 13 and two second valve ports, and the seventh flow channel X connects the fifth flow channel Y and the sixth flow channel Z respectively.

[0078] Continue to refer to Figure 25As the first and second valve cores continue to rotate, in operating mode two, for the first sub-valve core, the first and second flow channels remain connected through the first sub-channel; for the second sub-valve core, the third and fourth flow channels remain connected through the second sub-channel; and for the second valve core, the fifth, sixth, and seventh flow channels are connected through the second and third channels. It is evident that during the transition from mode one to mode two, the flow channels controlled by the first valve core and the direction of fluid flow change, while the number of flow channels controlled by the second valve core and the direction of fluid flow both change. Therefore, the fluid control component provided in this application can achieve flow rate ratio regulation while maintaining the flow channel switching mode.

[0079] refer to Figure 26 In Figure (b) of the diagram, in one specific embodiment, mode two is implemented as follows: the first valve core is a column valve, and the second valve core is a ball valve. The ball valve is located below the column valve. The driving device drives the first valve core and the second valve core to rotate to a set mode angle of 15-95°. In the lower ball valve, fluid flows in along the connection port x and flows out along the connection port y and the connection port respectively to achieve proportional adjustment. In the upper column valve, fluid flows in along the connection port 1-1 and flows out along the connection port 2-2; at the same time, fluid flows in along the connection port 3-2 and flows out along the connection port 4-4.

[0080] In mode 3, the first sub-channel 301 of the first valve core 3 connects the first sub-valve port 1111 and the second sub-valve port 1112 of the first layer, and the first flow channel I and the first flow channel II are connected; the second sub-channel 302 of the first valve core 3 connects the third sub-valve port 1123 of the second layer and the fourth sub-valve port 1124 of the second layer, and the third flow channel III and the fourth flow channel IV are connected; the second channel (20) of the second valve core 2 connects the third valve port 13 and the second valve port, and the sixth flow channel Z and the seventh flow channel X are connected.

[0081] Continue to refer to Figure 25 As the first and second valve cores continue to rotate, in operating mode three, for the first sub-valve core, the first and second flow channels remain connected via the first sub-channel; for the second sub-valve core, the third and fourth flow channels remain connected via the second sub-channel; and for the second valve core, the sixth and seventh flow channels are connected via the second and third channels. It is evident that during the transition from mode two to mode three, the flow channels controlled by the first valve core and the direction of fluid flow remain unchanged, while the number of flow channels controlled by the second valve core and the direction of fluid flow change. Therefore, the fluid control component provided in this application can achieve flow rate ratio regulation while maintaining the flow channel switching mode.

[0082] refer to Figure 26In Figure (c), in one specific embodiment, mode three is implemented as follows: the first valve core is a column valve, the second valve core is a ball valve, and the ball valve is located below the column valve. When the driving device drives the first valve core and the second valve core to rotate to the set mode angle of 100°, the lower ball valve: fluid flows in along the connection port x and flows out along the connection port z; the upper column valve: fluid flows in along the connection port 1-1 and flows out along the connection port 2-2; at the same time, it flows in along the connection port 3-2 and flows out along the connection port 4-4.

[0083] Mode 4: The first sub-channel 301 of the first valve core 3 connects the third sub-valve port 1113 and the second sub-valve port 1112 of the first layer, and the first flow channel I and the fourth flow channel IV are connected; the second sub-channel 302 of the first valve core 3 connects the first sub-valve port 1121 and the fourth sub-valve port 1124 of the second layer, and the first flow channel II and the third flow channel III are connected; the second channel (20) of the second valve core 2 connects the third valve port 13 and the second valve port, and the sixth flow channel Z and the seventh flow channel X are connected.

[0084] Continue to refer to Figure 25 As the first and second valve cores continue to rotate, in working mode four, for the first sub-valve core, the first flow channel and the fourth flow channel are connected through the first sub-channel; for the second sub-valve core, the second flow channel and the third flow channel are connected through the second sub-channel; and for the second valve core, the sixth flow channel and the seventh flow channel are connected through the second channel and the third channel.

[0085] refer to Figure 26 In Figure (d) of the diagram, in one specific embodiment, mode four is implemented as follows: the first valve core is a column valve, and the second valve core is a ball valve. The ball valve is located below the column valve. When the driving device drives the first valve core and the second valve core to rotate to the set mode angle of 190°, the lower ball valve: fluid flows in along the connection port x and flows out along the connection port z; the upper column valve: fluid flows in along the connection port 3-1 and flows out along the connection port 2-2; at the same time, fluid flows in along the connection port 1-2 and flows out along the connection port 4-4.

[0086] Mode 5: The first sub-channel 301 of the first valve core 3 connects the third sub-valve port 1113 and the second sub-valve port 1112 of the first layer, and the first flow channel I and the fourth flow channel IV are connected; the second sub-channel 302 of the first valve core 3 connects the first sub-valve port 1121 and the fourth sub-valve port 1124 of the second layer, and the first flow channel II and the third flow channel III are connected; the second channel (20) of the second valve core 2 connects the third valve port 13 and two second valve ports (12), and the seventh flow channel X connects the fifth flow channel Y and the sixth flow channel Z respectively.

[0087] Continue to refer to Figure 25As the first and second valve cores continue to rotate, in operating mode five, for the first sub-valve core, the first and fourth flow channels remain connected via the first sub-channel; for the second sub-valve core, the second and third flow channels remain connected via the second sub-channel; and for the second valve core, the fifth, sixth, and seventh flow channels are connected via the second and third channels. It is evident that during the transition from mode four to mode five, the flow channels controlled by the first valve core and the fluid flow direction remain unchanged, while the number of flow channels controlled by the second valve core and the fluid flow direction change. Therefore, the fluid control component provided in this application can achieve flow ratio regulation while maintaining the flow channel switching mode.

[0088] refer to Figure 26 In Figure (e), in one specific embodiment, mode five is implemented as follows: the first valve core is a column valve, and the second valve core is a ball valve. The ball valve is located below the column valve. When the driving device drives the first valve core and the second valve core to rotate to the set mode angle of 195-275°, the lower ball valve: fluid flows in along the connection port x and flows out along the connection port y and connection port z respectively to achieve proportional adjustment; the upper column valve: fluid flows in along the connection port 3-1 and flows out along the connection port 2-2; at the same time, fluid flows in along the connection port 1-2 and flows out along the connection port 4-4.

[0089] Mode 6: The first sub-channel 301 of the first valve core 3 connects to the third sub-valve port 1113 and the second sub-valve port 1112 of the first layer; the first flow channel I and the fourth flow channel IV are connected; the second sub-channel 302 of the first valve core 3 connects to the first sub-valve port 1121 and the fourth sub-valve port 1124 of the second layer; the first flow channel II and the third flow channel III are connected; the second channel 20 of the second valve core 2 connects to the third valve port 13 and the second valve port; and the fifth flow channel Y and the seventh flow channel X are connected.

[0090] Continue to refer to Figure 25 As the first and second valve cores continue to rotate, in operating mode six, for the first sub-valve core, the first and fourth flow channels remain connected via the first sub-channel; for the second sub-valve core, the second and third flow channels remain connected via the second sub-channel; and for the second valve core, the fifth, sixth, and seventh flow channels are connected via the second and third channels. It is evident that during the transition from mode five to mode six, the flow channels controlled by the first valve core and the fluid flow direction remain unchanged, while the number of flow channels controlled by the second valve core and the fluid flow direction change. Therefore, the fluid control component provided in this application can achieve flow ratio regulation while maintaining the flow channel switching mode.

[0091] refer to Figure 26In Figure (f), in one specific embodiment, mode six is ​​implemented as follows: the first valve core is a column valve, and the second valve core is a ball valve. The ball valve is located below the column valve. When the driving device drives the first valve core and the second valve core to rotate to the set mode angle of 280°, the lower ball valve: fluid flows in along connection port x and flows out along connection port y; the upper column valve: fluid flows in along connection port 3-1 and flows out along connection port 2-2; at the same time, fluid flows in along connection port 1-2 and flows out along connection port 4-4.

[0092] The embodiments described above are merely examples of several implementations of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications without departing from the inventive concept, and these modifications all fall within the protection scope of this invention.

Claims

1. A fluid control component, characterized in that, The fluid control assembly includes a valve body (1), a first valve core (3), and a second valve core (2). The first valve core (3) and the second valve core (2) are arranged axially along the first valve core (3). The first valve core (3) is further away from the bottom of the valve body than the second valve core (2). The fluid control assembly has a first valve chamber (101) and a second valve chamber (102). The valve body (1) includes a first sidewall portion (151) and a second sidewall portion (152) that are fixedly connected or integrally formed. The first sidewall portion (151) defines the sidewall of the first valve chamber (101), and the second sidewall portion (152) defines the sidewall of the second valve chamber (102). At least a portion of the second valve core (2) is included. The first valve core (3) is located in the second valve chamber (102), and at least part of the first valve core (3) is located in the first valve chamber (101). The first side wall portion (151) has a first valve port (11), and the second side wall portion (152) has a second valve port (12). In a direction perpendicular to the axis of the valve body (1), the second valve port (12) is closer to the center line of the valve body (1) than the first valve port (11). The first valve core (3) has a first channel (30), and the second valve core (2) has a second channel (20). The first channel (30) can communicate with the first valve port (11), and the second channel (20) can communicate with the second valve port (12). Along the radial direction of the second valve core (2), there is a gap between the first sidewall portion (151) and the second sidewall portion (152). The fluid control assembly also includes a reinforcing rib (105) disposed in the gap, and the reinforcing rib (105) connects the first sidewall portion (151) and the second sidewall portion (152).

2. The fluid control assembly as claimed in claim 1, characterized in that, The second sidewall portion (152) includes a flow-through sidewall (23) and a support sidewall (24) that are fixedly connected and circumferentially spaced apart. The second valve port (12) is opened on the flow-through sidewall (23), and the reinforcing rib (105) is located between the support sidewall (24) and the first sidewall portion (151).

3. The fluid control assembly as described in claim 2, characterized in that, There are at least two flow-through sidewalls (23), at least two support sidewalls (24), and at least two reinforcing ribs (105) connected to each of the support sidewalls (24). Each of the reinforcing ribs (105) is arranged circumferentially along the support sidewall (24) and extends radially along the second valve core (2).

4. The fluid control assembly as claimed in claim 2, characterized in that, Along the axial direction of the valve body (1) and close to the first valve core (3), the supporting sidewall (24) is closer to the first valve core (3) than the reinforcing rib (105), and the supporting sidewall (24), the reinforcing rib (105) and the first sidewall portion (151) form a limiting groove (200); the fluid control assembly also includes a sealing gasket (8), the sealing gasket (8) having a connecting hole (80), the connecting hole (80) corresponding to the first valve port (11), and a portion of the sealing gasket (8) located in the limiting groove (200).

5. The fluid control assembly as claimed in claim 2, characterized in that, The supporting sidewall (24) also has anti-shrinkage holes (104), which include a blind hole structure penetrating the end face facing the first valve core (3). The anti-shrinkage holes (104) are distributed circumferentially along the second valve cavity (102) and radially along the second valve cavity (102). At least a portion of the hole wall of the anti-shrinkage holes (104) corresponds to the reinforcing rib (105).

6. The fluid control assembly according to any one of claims 1-5, characterized in that, It also includes a sealing flange (4), which is disposed between the first valve core (3) and the second valve core (2). The sealing flange (4) is sealed and fixedly connected to the end face of the second side wall portion (152). The sealing flange (4) defines the top wall of the second valve cavity (102) and the sealing flange (4) defines the bottom wall of the second valve cavity (102). The second valve core has at least one circumferential surface forming the second channel that is spherical. The fluid control assembly also includes a sealing assembly (5), which abuts against the wall defining the second valve port (12) and the second valve core (2). The wall defining the second valve port (12) also includes a limiting member (14). Along the axial direction of the valve body (1), at least a portion of the limiting member (14) is located on the side of the second valve port (12) away from the first valve core (1). The limiting member (14) has an arcuate structure in the direction toward the second valve port (12). The sealing flange (4) has a recess (41), at least a portion of which is located on the side of the second valve port (12) near the first valve core (1). The number of recesses (41) is equal to the number of sealing assemblies (5) and they are correspondingly arranged. The recesses (41) and the limiting member (14) axially limit the sealing assembly (5).

7. The fluid control assembly as claimed in claim 6, characterized in that, The limiting member (14) includes multiple limiting units (141), each limiting unit (141) is circumferentially distributed along the second valve port (12), each limiting unit (141) has an arc-shaped surface, the extension surfaces of the arc-shaped surfaces of each limiting unit (141) are coplanar, each limiting unit (141) is fixedly connected to the bottom of the valve body (1), and a sealing groove (103) is provided on the bottom surface of the valve body (1) away from the second valve core (2), along the axial direction of the valve body (1), the depth direction of the sealing groove (103) extends toward the sealing assembly (5).

8. The fluid control assembly according to any one of claims 1-5, characterized in that, The first channel (30) includes a first sub-channel (301) and a second sub-channel (302). The first sub-channel (301) is located on the side of the first valve core (3) away from the second valve core and has a circumferential opening. The second sub-channel (302) is located on the side of the first valve core (3) close to the second valve core and has a circumferential opening. The first valve port (11) includes a first layer valve port (111) and a second layer valve port (112). The first layer valve port (111) is circumferentially spaced along the valve body (1), and the second layer valve port (112) is circumferentially spaced along the valve body (1). The first layer valve port (111) and the second layer valve port (112) are axially arranged along the first valve core (3). The first sub-channel (301) can connect to the first layer valve port (111), and the second sub-channel (302) can connect to the second layer valve port (112).

9. The fluid control assembly as claimed in claim 8, characterized in that, The second valve core (2) includes a blocking part (201) and a flow guiding part (202), the second channel (20) is formed in the flow guiding part (202), the second channel (20) extends circumferentially along the second valve core (2), and the second channel (20) can communicate with at least one second valve port (12); The first valve core (3) includes a first sub-channel portion (31) and a second sub-channel portion (32). The first sub-channel portion (31) and the second sub-channel portion (32) are axially arranged and fixedly connected. In the axial projection direction, the projection of the first sub-channel portion (31) and the projection of the second sub-channel portion (32) intersect.

10. The fluid control assembly as claimed in claim 9, characterized in that, The first layer valve port (111) includes a first layer sub-valve port (1111), a second layer sub-valve port (1112), a third layer sub-valve port (1113), and a fourth layer sub-valve port (1114). The first layer sub-valve port (1111) and the third layer sub-valve port (1113) are symmetrically arranged about the center line of the first valve core (3), and the second layer sub-valve port (1112) and the fourth layer sub-valve port (1114) are symmetrically arranged about the center line of the first valve core (3). The second-layer valve port (112) includes a second-layer first sub-valve port (1121), a second-layer second sub-valve port (1122), a second-layer third sub-valve port (1123), and a second-layer fourth sub-valve port (1124). The second-layer first sub-valve port (1121) and the second-layer third sub-valve port (1123) are symmetrical about the axis of the first valve core (3), and the second-layer second sub-valve port (1122) and the second-layer fourth sub-valve port (1124) are symmetrically arranged about the center line of the first valve core (3). The valve body (1) has multiple valve body flow channels (10), wherein the first-layer second sub-valve port (1112) and the second-layer first sub-valve port (1121) can communicate with the same valve body flow channel. (10) The first-layer fourth sub-valve port (1114) and the second-layer third sub-valve port (1123) can communicate with the same valve body flow channel (10); the first-layer first sub-valve port (1111) and the second-layer second sub-valve port (1122) are respectively located on both sides of the first-layer second sub-valve port (1112), and the first-layer third sub-valve port (1113) and the second-layer fourth sub-valve port (1124) are respectively located on both sides of the first-layer fourth sub-valve port (1114); the second valve port (12) includes a second valve port one (121) and a second valve port two (122), and the second valve port one (121) and the second valve port two (122) are symmetrical about the center of the valve body; The second valve core (2) has a third channel (21) at its bottom opposite to the first valve core (3), the third channel (21) being connected to the second channel (20), the valve body (1) including a third valve port (13), the third valve port (13) being located at the bottom of the valve body (1), the third valve port (13) being correspondingly provided with the third channel (21); the second channel (20) being able to connect at least one second valve port (12) and the third valve port (13).

11. The fluid control assembly as claimed in claim 10, characterized in that, The valve body (1) also includes 9 connection ports, namely connection port (1-1), connection port (2-2), connection port (3-1), connection port (1-2), connection port (4-4), connection port (3-2), connection port (x), connection port (y), and connection port (z). Connection port (1-1) is connected to the first sub-valve port (1111) of the first layer. Connection port (2-2) is connected to the second sub-valve port (1112) of the first layer and the first sub-valve port (1121) of the second layer. Connection port (3-1) is connected to the second sub-valve port (1122) of the second layer. Connection port (1-2) is connected to the third sub-valve port (1113) of the first layer. Connection port (4-4) is connected to the first sub-valve port (z). -4) Connecting the first layer fourth sub-valve port (1114) and the second layer third sub-valve port (1123), the connection port (3-2) connects the second layer fourth sub-valve port (1124); the connection port (x) connects the third valve port (13), the connection port (y) connects the second valve port one (121), and the connection port (z) connects the second valve port two (122); in one of the working modes of the fluid control component, the first sub-channel (301) connects the first layer valve port (111), the second sub-channel (302) connects the second layer valve port (112), and the second channel (20) connects the second valve port (12).

12. The fluid control assembly as claimed in claim 11, characterized in that, It also includes a flow channel plate assembly (7), which is fixedly connected or integrally connected to the valve body (1). The flow channel plate assembly (7) includes four flow channels that can communicate with the first valve port (11), namely a first flow channel (Ⅰ), a second flow channel (Ⅱ), a third flow channel (Ⅲ), and a fourth flow channel (Ⅳ). The connection port (1-1) and the connection port (1-2) are connected to the first flow channel (Ⅰ), the connection port (2-2) is connected to the second flow channel (Ⅱ), the connection port (3-1) and the connection port (3-2) are both connected to the third flow channel (Ⅲ), and the connection port (4-4) is connected to the fourth flow channel (Ⅳ). The flow channel plate assembly (7) also includes two flow channels that can communicate with the second valve port (12), namely the fifth flow channel (Y) and the sixth flow channel (Z), and the seventh flow channel (X) that communicates with the third valve port (13). The connection port (y) can communicate with the fifth flow channel (Y), the connection port (z) can communicate with the sixth flow channel (Z), and the connection port (x) can communicate with the seventh flow channel (X).

13. The fluid control assembly as claimed in claim 6, characterized in that, The first valve core (3) has a first spindle (314), and the bottom of the first valve core (3) opposite to the first spindle (314) has a snap-fit ​​hole (324). The sealing flange (4) has a mounting hole (40). The second valve core (2) has a second spindle (323), and the second spindle (323) has a snap-fit ​​part (3230). The snap-fit ​​part (3230) passes through the mounting hole (40) and is limitedly engaged with the snap-fit ​​hole (324). The fluid control assembly also includes a drive device (6), which is connected to the first spindle (314) to drive the first valve core (3) and the second valve core (2) to rotate synchronously. The fluid control assembly further includes a sealing gasket (8) having a connecting hole (80) corresponding to the first valve port (11), defining the hole wall of the connecting hole (80) as having a slope, and the size of the connecting hole (80) gradually decreasing in the direction close to the valve body (1).

14. The fluid control assembly as claimed in claim 12, characterized in that, The fluid control component has at least one of the following operating modes: In mode 1, the first sub-channel (301) of the first valve core (3) is connected to the first sub-valve port (1111) and the second sub-valve port (1112) of the first layer, and the first flow channel (Ⅰ) and the first flow channel (Ⅱ) are connected. The second sub-channel (302) of the first valve core (3) is connected to the second layer third sub-valve port (1123) and the second layer fourth sub-valve port (1124), and the third flow channel (Ⅲ) and the fourth flow channel (Ⅳ) are connected. The second channel (20) of the second valve core (2) is connected to the third valve port (13) and the second valve port, and the fifth flow channel (Y) and the seventh flow channel (X) are connected. In mode 2, the first sub-channel (301) of the first valve core (3) is connected to the first sub-valve port (1111) and the second sub-valve port (1112) of the first layer, and the first flow channel (Ⅰ) and the first flow channel (Ⅱ) are connected; the second sub-channel (302) of the first valve core (3) is connected to the third sub-valve port (1123) and the fourth sub-valve port (1124) of the second layer, and the third flow channel (Ⅲ) and the fourth flow channel (Ⅳ) are connected; the second channel (20) of the second valve core (2) is connected to the third valve port (13) and two second valve ports, and the seventh flow channel (X) is connected to the fifth flow channel (Y) and the sixth flow channel (Z) respectively; In mode 3, the first sub-channel (301) of the first valve core (3) is connected to the first sub-valve port (1111) and the second sub-valve port (1112) of the first layer, and the first flow channel (Ⅰ) and the first flow channel (Ⅱ) are connected. The second sub-channel (302) of the first valve core (3) is connected to the third sub-valve port (1123) of the second layer and to the fourth sub-valve port (1124) of the second layer. The third flow channel (Ⅲ) and the fourth flow channel (Ⅳ) are connected. The second channel (20) of the second valve core (2) is connected to the third valve port (13) and the second valve port (12). The sixth flow channel (Z) and the seventh flow channel (X) are connected. In mode four, the first sub-channel (301) of the first valve core (3) is connected to the third sub-valve port (1113) of the first layer and the second sub-valve port (1112) of the first layer, and the first flow channel (Ⅰ) and the fourth flow channel (Ⅳ) are connected; the second sub-channel (302) of the first valve core (3) is connected to the first sub-valve port (1121) of the second layer and the fourth sub-valve port (1124) of the second layer, and the first flow channel (Ⅱ) and the third flow channel (Ⅲ) are connected; The second channel (20) of the second valve core (2) is connected to the third valve port (13) and the second valve port (12), and the sixth flow channel (Z) and the seventh flow channel (X) are connected. In mode 5, the first sub-channel (301) of the first valve core (3) is connected to the third sub-valve port (1113) and the second sub-valve port (1112) of the first layer, and the first flow channel (Ⅰ) and the fourth flow channel (Ⅳ) are connected; the second sub-channel (302) of the first valve core (3) is connected to the first sub-valve port (1121) and the fourth sub-valve port (1124) of the second layer, and the first flow channel (Ⅱ) and the third flow channel (Ⅲ) are connected; the second channel (20) of the second valve core (2) is connected to the third valve port (13) and two second valve ports (12), and the seventh flow channel (X) is connected to the fifth flow channel (Y) and the sixth flow channel (Z) respectively; In mode six, the first sub-channel (301) of the first valve core (3) is connected to the third sub-valve port (1113) and the second sub-valve port (1112) of the first layer, and the first flow channel (Ⅰ) and the fourth flow channel (Ⅳ) are connected. The second sub-channel (302) of the first valve core (3) is connected to the first sub-valve port (1121) and the fourth sub-valve port (1124) of the second layer, and the first flow channel (Ⅱ) and the third flow channel (Ⅲ) are connected. The second channel (20) of the second valve core (2) is connected to the third valve port (13) and the second valve port (12), and the fifth flow channel (Y) and the seventh flow channel (X) are connected.

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