Valve device, fluid control module and manufacturing method of fluid control module

Abstract

The invention provides a valve device. The valve device comprises a stator component, a support and a valve body. The support comprises a base and a buckling piece, the base and the buckling piece are fixedly connected or are of an integrated structure, and the base is fixedly connected with the stator component; the valve body comprises a stopping part, the stopping part is located on the periphery of the valve body, the buckling piece comprises a clamping part and an elastic part, the clamping part and the stopping part are fixed in a clamping mode or connected in a limiting mode in the axial direction of the stator component, and the elastic part abuts against the stopping part in the circumferential direction of the stator component. According to the valve device, the valve body comprises the stop part, the buckle part comprises the clamping part and the elastic part, the clamping part and the stop part are clamped and fixed, and the elastic part abuts against the stop part, so that movement of the stator component is limited. And compared with threaded connection of the stator component and the valve body, assembly is more convenient and quicker.

Description

Technical Field

[0001] The present application relates to the field of fluid control technology, and in particular to a valve device, a fluid control module, and a method for manufacturing the fluid control module. Background Art

[0002] With the rapid development of automotive thermal management technology, the integration and modularization of thermal management systems have received increasing attention. In related technologies, when assembling the coil assembly of a valve device and the valve body or the flow channel plate, it is necessary to use fasteners such as screws to fix the coil assembly to the valve body or the flow channel plate. This requires aligning the screw holes and tightening the screws, and a certain operating space needs to be reserved, resulting in low assembly efficiency of the valve device. Summary of the Invention

[0003] An object of the present invention is to provide a valve device with a relatively simple structure and convenient installation.

[0004] An embodiment of the present application provides a valve device, including a stator component, a bracket and a valve body; the bracket includes a base and a snap-fit ​​member, the base is fixedly connected to the snap-fit ​​member or is an integral structure, and the base is fixedly connected to the stator component; the valve body includes a stop portion, the stop portion is located on the outer periphery of the valve body, the snap-fit ​​member includes a clamping portion and an elastic portion, along the axial direction of the stator component, the clamping portion and the stop portion are clamped and fixed or limit-connected, and along the circumferential direction of the stator component, the elastic portion abuts against the stop portion.

[0005] The valve device provided herein comprises a valve body including a stopper, a clip including a clamping portion and an elastic portion. The clamping portion and the stopper are clamped and fixed, and the elastic portion abuts against the stopper, thereby restricting movement of the stator component. Compared to a threaded connection between the stator component and the valve body, assembly is more convenient and faster.

[0006] An embodiment of the present application provides a fluid control module, comprising a flow channel plate assembly and the valve device of the aforementioned claims. The flow channel plate assembly comprises a first flow channel, a second flow channel, and a mounting cavity. A portion of the valve body is located in the mounting cavity, and the valve body is fixedly connected to the flow channel plate assembly. The stator component and valve body mounting structure of the present application facilitates installation of the fluid control module. Furthermore, the present application requires relatively less space for stator component installation, which, to a certain extent, facilitates miniaturization of the fluid control module.

[0007] An embodiment of the present application provides a method for manufacturing a fluid control module, characterized in that:

[0008] Stamping to form multiple plates and valve bodies;

[0009] A plurality of plates are stacked to form a flow channel plate assembly, and the valve body is inserted into the mounting cavity of the flow channel plate assembly to form at least a portion of a first assembly;

[0010] Placing the first component into a furnace and fixing it by brazing;

[0011] Assembling the valve seat and the sleeve to form at least a portion of a second assembly;

[0012] Inserting the second component into the valve body and fixing it by screwing or welding;

[0013] The stator component is sleeved on the outer periphery of the second component, and the stator component and the valve body are clamped and fixed.

[0014] The manufacturing method of the fluid control module provided in this application is that the flow channel plate assembly and the valve body are formed by stamping and welding processes. The stamping process is relatively simple and mature. The setting of the multi-layer flow channel can increase the spatial flexibility of the thermal management layout compared to the flat layout. The stator component and the valve body are clamped and fixed for easy installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the fluid control module of this application;

[0016] Figure 2 for Figure 1 sectional view of

[0017] Figure 3 for Figure 1 Exploded view of the manifold assembly;

[0018] Figure 4 for Figure 3 a cross-sectional view of a flow channel plate assembly;

[0019] Figure 5 for Figure 1 Another exploded view of the runner plate assembly;

[0020] Figure 6 for Figure 1 Schematic diagram of the connection structure between the bracket and the valve body;

[0021] Figure 7 for Figure 1 A schematic diagram of the connection structure between the bracket and the valve body from another perspective;

[0022] Figure 8 for Figure 1 Schematic diagram of the structure of the valve body;

[0023] Figure 9 for Figure 1 A schematic diagram of the structure of the valve body from another perspective;

[0024] Figure 10 for Figure 1 Schematic diagram of the structure of the bracket;

[0025] Figure 11 for Figure 1 Schematic diagram of the bracket structure from another perspective. DETAILED DESCRIPTION

[0026] The present application is further described below in conjunction with the accompanying drawings and specific embodiments. Identical components are denoted by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings; the terms "bottom," "top," "inner," and "outer" refer to directions toward or away from the geometric center of a particular component, respectively.

[0027] It should be understood that although the terms "first," "second," "third," "fourth," and so on may be used in this application to describe various information, such information should not be limited to these descriptions. These terms are used only to distinguish information of the same type from one another. "Multiple" means two or more. The various embodiments in this application may complement each other unless there is a conflict.

[0028] The fluid control component of the technical solution of the present invention can have multiple implementation methods, at least one of which can be applied to a vehicle thermal management system, and at least one of which can be applied to other thermal management systems such as a household thermal management system or a commercial thermal management system. The following is an illustration using a vehicle thermal management device as an example with reference to the accompanying drawings.

[0029] Combine Figures 1-11The flow channel plate assembly 200 includes a first plate body 22, a second plate body 23 and a third plate body 24. The first plate body 22 and the third plate body 24 are respectively located on opposite sides of the second plate body 23. The flow channel plate assembly 200 includes a first flow channel 201 and a second flow channel 202. The first flow channel 201 and the second flow channel 202 are located on opposite sides of the second plate body 23. The wall portion forming the first flow channel 201 is located on the first plate body 22, and the wall portion forming the second flow channel 202 is located on the third plate body 24. The first plate body 22 includes a first mounting portion. The first mounting portion 223 includes a first mounting hole 224, the second plate body 23 includes a second mounting portion 231, the second mounting portion 231 includes a second mounting hole 232, and the second mounting hole 232 is coaxially arranged with the first mounting hole 224; the flow channel plate assembly 200 has a mounting cavity 203, and the wall forming the mounting cavity 203 includes the wall forming the first mounting hole 224; the fluid control module also includes a valve component 1, at least part of the valve component 1 is located in the mounting cavity 203, and the valve component 1 is fixedly connected to the flow channel plate assembly 200. It should be noted that the coaxiality referred to here is not an absolute coaxial setting, and it is sufficient to be within the range allowed by the tolerance; the valve component 1 is fixedly connected to the flow channel plate assembly, which can be understood as the valve component 1 and the flow channel plate assembly 200 can be directly fixedly connected, or the valve component 1 and the flow channel plate assembly 200 can be indirectly fixed through other components. The flow channel plate assembly 200 includes at least one first flow channel 201 and at least one second flow channel 202. The first flow channel 201 and the second flow channel 202 are arranged along the axial direction of the installation cavity 203. It can also be understood that along the axial direction of the installation cavity 203 of the flow channel plate assembly 200, the first flow channel 201 is close to the valve component 1 relative to the second flow channel 202, that is, the first flow channel 201 and the second flow channel 202 are arranged up and down along the axial direction of the installation cavity 203. In this solution, multiple layers of flow channels are formed by stacking multiple plates. Compared with the flat arrangement of the flow channels, the design of this solution can increase the spatial flexibility of the layout of the fluid control module.

[0030] The flow plate control module also includes a valve body 30, at least part of which is located in the mounting cavity 203, and the valve body 30 is fixedly connected to the flow plate assembly 200. The valve body 30 has a receiving cavity 301, and part of the valve component 1 is located in the receiving cavity 301, and the valve component 1 is fixedly connected to the valve body 30. The first flow channel 201 is connected to the receiving cavity 301, and the second flow channel 202 can selectively be connected to the receiving cavity 301. The valve body 30 has a receiving cavity 301, and the first flow channel 201 is connected to the receiving cavity 301, and the second flow channel 202 is connected to the receiving cavity 301. By adjusting the valve component 1, the flow from the first flow channel 201 to the second flow channel 202 or the flow rate of the fluid from the first flow channel 201 to the second flow channel 202 can be controlled. In the related technology, the valve body 30 or the valve island structure is located on the outside of the flow portion or the flow channel plate, and the fluid inlet is arranged on the valve body 30 or on the valve island. The fluid turns upward from the first flow channel 201 and flows into the valve body 30, and flows into the second flow channel 202 through the valve port of the valve body 30, thereby increasing the flow resistance. In this embodiment, the first flow channel 201 and the second flow channel 202 are arranged up and down, and part of the valve body 30 is located in the installation cavity 203, and the valve port is also located in the installation cavity 203. The fluid in the first flow channel 201 flows downward through the valve port to the second flow channel 202, and the fluid flows in the direction of gravity. There are no bends at the inlet and outlet of the fluid. Compared with the related technology, the flow resistance of the fluid is relatively reduced.

[0031] The flow channel plate assembly 200 includes at least three plates, and the at least three plates are stacked and fixedly connected along the axial direction of the installation cavity 203. The at least three plates cooperate with each other to form a first flow channel 201, a second flow channel 202, and an installation cavity 203. It should be noted that at least three layers of plates form two layers of flow channels, namely the first flow channel 201 and the second flow channel 202. Of course, in other embodiments, more than three plates can be included, and the flow channels can also be three or more layers, that is, there can be a third flow channel, a fourth flow channel, etc. The number of plates and the number of layers of flow channels can be set according to the required specifications of the system. Of course, multiple first flow channels 201 and second flow channels 202 can also be provided. The flow channels of the present application are formed by stacking multiple plates, that is, multi-layer flow channels are formed along the direction of the plate stacking. Through the stacking structure of the multi-layer plates, the range of choices of processing technology selected for the plates is wider, such as extrusion, forging, stamping, etc., and compared with the flat layout, the structural design of the present application can increase the spatial flexibility of the thermal management layout. In the present application, at least one of the first mounting portion 223, the second mounting portion 231, a portion of the wall forming the first flow channel 201, and a portion of the wall forming the second flow channel 202 is stamped. For ease of manufacturing, in one specific implementation, the plate is a stamped plate, at least one of which is stamped to form a portion of the first flow channel 201 and a portion of the mounting cavity 203, and at least another plate is stamped to form a portion of the second flow channel 202. Stamping is a relatively mature process with relatively low manufacturing costs. Compared to other processes, stamping can manufacture plates with relatively complex flow channel structures.

[0032] Combine Figure 5As shown, one embodiment of the flow channel plate assembly 200 is specifically described. The flow channel plate assembly 200 includes a first plate 22, a second plate 23, and a third plate 24. The first plate 22, the second plate 23, and the third plate 24 are stacked in sequence along the axial direction. The first plate 22 has a first groove 221. The opening of the first groove 221 faces the second plate 23 along the axial direction. The first plate 22 and the second plate 23 cooperate to form part of the first flow channel 201. That is, the wall forming the first flow channel 201 includes the wall forming the first groove 221 and a portion of the wall of the second plate 23. The wall forming the first groove 221 includes a first bottom wall portion 222, which is opposite to the opening of the first groove 221. The flow channel plate assembly 200 includes an installation cavity 203, which is connected to the first flow channel 201. It can also be understood that the installation cavity 203 is a part of the first flow channel 201; the first plate body 22 includes a first installation portion 223, which is located at the first bottom wall portion 222, and the first installation portion 223 includes a first installation hole 224. Along the axial direction, the first installation hole 224 passes through the first bottom wall portion 222. The first installation hole 224 is the opening of the installation cavity 203, that is, the wall forming the first installation cavity 203 includes a part of the wall forming the first groove 221 and a part of the wall of the second plate body 23; the second plate body 23 has a second installation portion 231, and the second installation portion 231 has a second installation hole 232. Along the axial direction, the second installation hole 232 passes through the second plate body 23. The third plate 24 has a third groove 241. Axially, the opening of the third groove 241 faces the second plate 23. The second and third plates 23 and 24 cooperate to form a portion of the second flow channel 202. Specifically, the wall forming the second flow channel 202 includes the wall forming the third groove 241 and a portion of the wall of the second plate 23. The second mounting hole 232 connects the first and second flow channels 201 and 202. In this embodiment, the first and second mounting holes 224 and 232 are coaxial or substantially coaxial in the axial direction. The first and second plates 22 and 23 are fixedly and hermetically connected, and the second and third plates 23 and 24 are fixedly and hermetically connected. In this embodiment, the fixing method is welding. Solder is applied to the contact surfaces of the plates or welding pads are provided between the plates for furnace welding. This results in a first welded portion forming the contact surface between the first and second plates 22 and 23, and a second welded portion forming the contact surface between the second and third plates 23 and 24.In this embodiment, the first plate body 22, the second plate body 23, and the third plate body 24 are stamped flow channel plates, that is, the first groove 221 of the first plate body 22 and the third groove 241 of the third plate body 24 are realized by stamping, and the first mounting hole 224 can be understood as a flanging hole. The groove is formed by stamping a single plate, and the plates are stacked, welded and sealed to form a flow channel. The design of the flow channel can be more complex and the manufacturing difficulty is reduced. The mounting cavity 203 is part of the groove, that is, the mounting cavity 203 is also formed by stacking the plates. Compared with the existing extruded and forged flow channel plates, the technical solution of the present application reduces the weight of the flow channel plate and the manufacturing of the flow channel plate is relatively simple.

[0033] In some other embodiments, the flow channel plate assembly 200 further includes a fourth plate body 25, such as Figure 1-Figure 4As shown, along the direction of plate stacking, the fourth plate 25 is located between the second plate 23 and the third plate 24, the second plate 23 has a second groove 233, and along the axial direction, the opening of the second groove 233 faces the first plate 22, the first plate 22 and the second plate 23 cooperate to form a part of the first flow channel 201, that is, the wall forming the first flow channel 201 includes the wall forming the second groove 233 and part of the wall of the first plate 22. It can be understood that the first plate 22 can be a flat plate structure, or a groove can be provided to cooperate with the second plate 23 to form a part of the flow channel; the flow channel plate assembly 200 includes a mounting cavity 203, the mounting cavity 203 is connected to the first flow channel 201, and it can also be understood that the mounting cavity 203 is a part of the first flow channel 201; the first plate 22 includes a first mounting portion 2 23. The first mounting portion 223 protrudes from the upper end portion of the first plate body 22. The first mounting portion 223 includes a first mounting hole 224. Axially, the first mounting hole 224 passes through the upper and lower ends of the first plate body 22. The first mounting hole 224 is the opening of the mounting cavity 203, that is, the wall forming the mounting cavity 203 includes a portion of the wall forming the second groove 233 and a portion of the wall of the first plate body 22; the second plate body 23 has a second mounting portion 231, and the second mounting portion 231 has a second mounting hole 232. The second mounting hole 232 is located on the bottom wall forming the mounting cavity 203. Axially, the second mounting hole 232 passes through the second plate body 23, that is, the first mounting hole 224 and the second mounting hole 232 are coaxial or approximately coaxially arranged. It should be noted that the approximately coaxial here means within the range allowed by the tolerance. The third plate 24 has a third groove 241. Axially, the opening of the third groove 241 faces the fourth plate 25. The fourth plate 25 and the third plate 24 cooperate to form a portion of the second flow channel 202. That is, the wall forming the second flow channel 202 includes the wall forming the third groove 241 and a portion of the wall of the fourth plate 25. The fourth plate 25 has a third mounting portion 251. The third mounting portion 251 includes a third mounting hole 252. Axially, the third mounting hole 252 extends through the upper and lower ends of the fourth plate 25, defining a first plane. The first plane is perpendicular to the axial direction of the mounting cavity 203. The orthographic projection of the third mounting hole 252 on the first plane includes the orthographic projection of the second mounting hole 232 on the first plane. It is understood that the fourth plate 25 can be a flat plate structure or can be provided with a groove. It cooperates with the third plate 24 to form a portion of the flow channel, and / or the fourth plate 25 cooperates with the second plate 23 to form a portion of the flow channel. In this embodiment, along the axial direction, the first mounting hole 224 , the second mounting hole 232 and the third mounting hole 252 are coaxially or substantially coaxially arranged, and the diameter of the third mounting hole 252 is larger than the diameter of the second mounting hole 232 .The first plate 22 is fixed and sealed to the second plate 23, the second plate 23 is fixed and sealed to the fourth plate 25, and the third plate 24 is fixed and sealed to the fourth plate 25. Specifically, the fixing method in this embodiment is welding, and furnace welding is performed by coating solder on the contact surface of each plate or arranging welding pieces between each plate, that is, the contact surface of the first plate 22 and the second plate 23 forms a first welding portion, the contact surface of the second plate 23 and the fourth plate 25 forms a second welding portion, and the contact surface of the third plate 24 and the fourth plate 25 forms a third welding portion. In this embodiment, the first plate body 22, the second plate body 23, the third plate body 24 and the fourth plate body 25 are stamped flow channel plates, that is, the second groove 233 of the second plate body 23 and the third groove 241 of the third plate body 24 are realized by stamping. The first mounting hole 224 can be understood as a flanging hole. The groove is formed by stamping a single plate, and the plates are stacked, welded and sealed to form a flow channel. The design of the flow channel can be more complex and the manufacturing difficulty is reduced. The mounting cavity 203 is part of the groove, that is, the mounting cavity 203 is also formed by stacking the plates. Compared with the existing extruded and forged flow channel plates, the technical solution of the present application reduces the weight of the flow channel plate and the manufacturing of the flow channel plate is relatively simple.

[0034] The valve device 100 can be applied to a vehicle thermal management system or an air-conditioning system. In a vehicle thermal management system, the valve device 100 is often used as a throttling element or a switching element. In an embodiment of the valve device 100, the valve device 100 includes a valve component 1 and a stator component 2. The stator component 2 is located on the periphery of at least part of the valve component 1. The stator component 2 is fixedly or position-limitedly connected to the valve component 1. Furthermore, a seal can be provided between the stator component 2 and the valve component 1 to prevent water vapor or other impurities in the external environment from entering through the assembly gap between the stator component 2 and the valve component 1, causing corrosion or failure inside the stator component 2. The stator component 2 includes a coil assembly 21 and an injection molding portion 211. The injection molding portion 211 covers at least part of the coil assembly 21, that is, the stator component 2 is at least injection-molded with the coil assembly 21 as an insert. The valve device 100 is electrically and / or signal-connected to the outside world through the stator component 2.

[0035] The valve component 1 includes a valve seat 9, a nut assembly, a sleeve 3, a rotor assembly, and a valve core assembly. The sleeve 3 is a tubular structure with one end open and the other end closed. One end of the sleeve 3 is welded to the upper end of the valve seat 9, and the rotor assembly and the nut assembly are located in the cavity formed by the sleeve 3 and the valve seat 9. The stator component 2 is located outside the sleeve 3, and the valve core assembly is transmission-connected to the rotor assembly. When a predetermined current is passed through the stator component 2, an excitation magnetic field is generated, which drives the rotor assembly to rotate. The rotor assembly drives the valve core assembly to rotate. The valve core assembly and the nut assembly are threadedly engaged, converting the rotation of the rotor assembly into axial movement of the valve core assembly relative to the valve seat 9. The valve component 1 also includes a valve seat 7, which has a valve port. Part of the valve seat 7 is located in the inner cavity of the valve seat 9, and the valve seat 7 is limitedly connected to the valve seat 9. The valve core assembly can move axially relative to the valve port. The valve core portion of the valve core assembly cooperates with the valve port to adjust the flow area of ​​the valve port or the opening of the valve port, thereby achieving flow regulation of the refrigerant.

[0036] Valve assembly 100 also includes a first seal 11, located between stator assembly 2 and valve assembly 1. This seal helps prevent moisture or other impurities from the external environment from entering through the assembly gap between stator assembly 2 and valve assembly 1, potentially causing corrosion or failure within stator assembly 2. Specifically, valve assembly 1 includes a gasket 10, one end of which is located on the flange portion of valve seat 9, and the other end of which supports first seal 11. Valve assembly 1 includes a sealed cavity 12, the walls of which include a portion of the outer wall of sleeve 3, a portion of the outer wall of injection-molded portion 211, and the upper end of gasket 10. First seal 11 is located within sealed cavity 12.

[0037] Combine Figure 1 、 Figures 6-11, the fluid control module of this embodiment includes a flow channel plate assembly 200 and a valve device 100, the flow channel plate assembly 200 includes a mounting cavity 203, part of the valve device 100 is located in the mounting cavity 203 of the flow channel plate assembly 200, the flow channel plate assembly 200 and the valve device 100 are fixedly connected or limit-connected; it should be noted that the fixed connection of this embodiment includes welding, threaded connection, bonding or a combination of the above three, and the limit connection includes a fixing method such as clamping; the valve body 30 is located in the mounting cavity 203, and the valve body 30 is fixedly connected to the flow channel plate assembly 200 or has an integrated structure; specifically, the valve device 100 includes The stator component 2, the bracket 8 and the valve body 30 are included; the bracket 8 includes a base 81 and a snap-fit ​​member 82, the base 81 and the snap-fit ​​member 82 are fixedly connected or are an integral structure, and the base 81 is fixedly connected to the stator component 2; the valve body 30 includes a stopper 302, the stopper 302 is located on the outer periphery of the valve body 30, the snap-fit ​​member 82 includes a clamping portion 83 and an elastic portion 84, the clamping portion 83 is clamped and fixed to the stopper 302 to limit the up and down movement of the stator component 2 in the axial direction, one end of the elastic portion 84 is fixedly connected to the clamping portion 83, and the other end of the elastic portion 84 abuts against the stopper 302 to limit the circumferential movement of the stator component 2. In the related art, the stator component 2 and the valve body 30 are connected in a screw or bolt manner. The installation direction of the screw is perpendicular to the installation direction of the stator component 2, and a certain operating and installation space needs to be reserved, which increases the volume of the thermal management module. Moreover, the installation method of screws and bolts is suitable for a valve body 30 with a certain thickness, such as a valve body 30 manufactured by extrusion, die-casting or forging, and is not suitable for thin sheet metal parts. In this embodiment, the stator component 2 and the valve body 30 are connected in a clamping manner. The clamping portion 83 is clamped and fixed with the stop portion 302 to limit the up and down movement of the stator component 2 in the axial direction. The elastic portion 84 abuts against the stop portion 302, that is, the elastic portion 84 abuts against part of the stop portion 302 through elastic deformation to limit the circumferential movement of the stator component 2. The connection method of the present application has a relatively simple structure and a wide range of applications. It is also suitable for the valve body 30 to be a thin plate part of the sheet metal part.

[0038] In this embodiment, the stator component 2 is located on the periphery of at least a portion of the valve component 1 and is fixedly or positionally connected to the valve component 1. The stator component 2 includes a coil assembly 21 and an injection molding portion 211. The injection molding portion 211 covers at least a portion of the coil assembly 21. That is, the stator component 2 is injection molded with at least the coil assembly 21 as an insert. The valve device 100 is electrically and / or signal-connected to the outside world through the stator component 2. The stator component 2 is positionally connected to the flow channel plate assembly 200. Specifically, the stator component 2 also includes a bracket 8, which is sleeved on the periphery of the sleeve 3 and fixedly connected to the injection molding portion 211. The bracket 8 includes a base 81 and a fastener 82. The base 81 and the fastener 82 are fixedly connected or are an integral structure. The base 81 includes a through hole. A plurality of through holes are arranged along the circumference of the base 81. A mounting column 212 is provided at the lower end of the injection molding part 211. The number and position of the mounting column 212 are arranged corresponding to the through holes on the base 81. The mounting column 212 passes through the through hole on the base 81. Through extrusion, the mounting column 212 is deformed, thereby fixing the bracket 8 and the stator component 2.

[0039] In this embodiment, the valve body 30 is roughly hollow cylindrical and includes a flange portion 310. The flange portion 310 is located at the end of the valve body 30. Along the radial direction of the valve body 30, the flange portion 310 protrudes outward relative to the outer wall of the valve body 30. The valve body 30 is formed by stamping. Compared with other processing forms, the stamping process is relatively simple. The stop portion 302 of the valve body 30 is located at the flange portion 310, and the stop portion 302 includes a first abutting portion 3021 and a second abutting portion 3022. Along the axial direction of the valve body 30, the first abutting portion 3021 and the second abutting portion 3022 are arranged back to back. The stop portion 302 also includes a slot 3023, which passes through the first abutting portion 3021 and the second abutting portion 3022. The slot 3023 has an opening, and the opening is located at the outer wall of the flange portion 310. The wall forming the slot 3023 includes a first side wall portion 3024 and a second side wall portion 3025, and the first side wall portion 3024 and the second side wall portion 3025 are arranged opposite to each other. The clamping portion 83 on the clamping member 82 abuts against the first abutting portion 3021, and the clamping portion 83 abuts against the second abutting portion 3022, thereby limiting the axial upward and downward movement of the stator component 2. Specifically, the clamping member 82 includes a clamping portion 83 and an elastic portion 84. The clamping portion 83 and the elastic portion 84 are fixedly connected or integrally formed. The elastic portion 84 is located on one side of the clamping portion 83. The clamping portion 83 is fixedly connected or integrally formed with the base 81. The clamping portion 83 is folded downwardly in the axial direction relative to the base 81. The portion 83 is roughly a plate-like structure, similar to the long direction or positive direction, and the clamping portion 83 includes a clamping groove 833, and the opening of the clamping groove 833 is located on the side wall of the clamping portion 83, that is, the opening of the clamping groove 833 faces the first side wall portion 3024 or the second side wall portion 3025 forming the clamping groove 3023. The clamping groove 833 is located on one side of the clamping portion 83, and the elastic portion 84 is located on the other side of the clamping portion 83, that is, the clamping groove 833 and the elastic portion 84 are arranged opposite to each other, and along the radial direction of the valve body 30, the clamping groove 833 passes through the inner and outer walls of the clamping portion 83. Part of the latch 82 is located in the slot 3023 of the stopper 302, that is, part of the latch 82 passes through the slot 3023 of the stopper 302; part of the stopper 302 is located in the engaging slot 833 of the engaging portion 83, the first abutting portion 3021 of the engaging portion 83 abuts against the upper wall portion forming the engaging slot 833, and the second abutting portion 3022 abuts against the lower wall portion forming the engaging slot 833. In the present application, the stopper 302 and the engaging slot 3023 of the engaging portion 83 are positioned vertically along the axial direction of the valve body 30, resulting in a relatively simple structure. The upper and lower positions abut against each other simultaneously, reducing the possibility of engagement disengagement due to vibration. In addition, the stopper 302 is formed by machining the flange 310 formed by stamping, resulting in a relatively simple manufacturing process and relatively low manufacturing cost. The latch 82 further includes an elastic portion 84 , which is located on one side of the clamping portion 83 and is arranged opposite to the clamping groove 833 . One end of the elastic portion 84 is connected to the bottom of the clamping portion 83 , and the other end of the elastic portion 84 is a free end.The elastic portion 84 includes a bent portion 841 and a stopper 842. One end of the bent portion 841 is fixedly connected to the bottom of the clamping portion 83, and the other end of the bent portion 841 is connected to the stopper 842. The stopper 842 abuts the first side wall 3024 or the second side wall 3025. The bent portion 841 of the elastic portion 84 is arranged at an angle to the side wall of the clamping portion 83. It can also be understood that along the circumference of the valve body 30, at least a portion of the bent portion 841 is set at a certain distance from the side wall of the clamping portion 83. In this embodiment, at least a portion of the stopper 842 is arranged parallel or quasi-parallel to the wall forming the clamping groove 3023, which relatively increases the contact area between the stopper 842 and the first side wall 3024 or the second side wall 3025. The distance between the stopper 842 and the side wall of the clamping portion 83 facilitates elastic deformation of the elastic portion 84 when subjected to force.

[0040] In some embodiments, the clamping portion 83 includes a base portion 831 and a connecting portion 832. The base portion 831 is a roughly plate-shaped structure, similar to a long or square structure. Along the radial direction of the valve body 30, the connecting portion 832 is folded inward or outward relative to the base portion 831. It can also be understood that the connecting portion 832 is folded relative to the base portion 831 toward the central axis of the valve body 30 or away from the central axis of the valve body 30. The clamping groove 3023 is located in the base portion 831, and the connecting portion 832 is connected to the elastic portion 84. The elastic portion 84 is bent upward relative to the connecting portion 832.

[0041] Combine Figure 9 、 Figure 11 The distance between the first sidewall portion 3024 and the second sidewall portion 3025 is defined as L1, i.e., the width of the slot 3023 is defined as L1. The distance between the two side walls of the engaging portion 83 is defined as L2. It should be noted that the distance between the two side walls of the engaging portion 83 refers to the maximum distance between the two side walls. The distance between the bottom wall forming the engaging slot 833 and the outer wall of the retaining portion 842 is defined as L3. It should be noted that the distance between the bottom wall forming the engaging slot 833 and the outer wall of the retaining portion 842 refers to the state when the elastic portion 84 of the latch 82 is in a free state, i.e., a state without deformation. Therefore, L1 ≥ L2, and L3 ≥ L1. In the engaged state, the depth D of the stopper 302 inserted into the engaging slot 833 is equal to the distance L from the side wall of the engaging portion 83 to the outer wall of the retaining portion 842.

[0042] In this embodiment, the stopper 302 corresponds to the latch 82, and at least one stopper 302 is provided. The stopper 302 is provided on the flange of the valve body 30. It is understood that the flange 310 can be provided continuously along the circumference of the valve body 30 or intermittently distributed along the circumference of the valve body 30. Of course, in other embodiments, the stopper 302 can be provided as a protruding structure that protrudes outward from the outer wall of the valve body 30.

[0043] In the above embodiment, the valve body 30 is formed by a stamping process, but in some other embodiments, the valve body 30 can also be formed by extrusion, casting, or forging, and the above-mentioned clamping structure between the stator component 2 and the valve body 30 is also applicable.

[0044] The valve device 100 further includes a valve seat 9 and a sleeve 3 . The sleeve 3 is fixed to the valve seat 9 by welding. At least a portion of the valve seat 9 is located in the inner cavity of the valve body 30 . The valve seat 9 is threadedly connected to the valve body 30 or fixed by welding.

[0045] A method for manufacturing a fluid control module, wherein the steps for manufacturing the fluid control module are as follows:

[0046] A plurality of plates and a valve body 30 are formed by stamping; at least two of the plurality of plates are stamped to form grooves;

[0047] A plurality of plates are stacked to form a flow channel plate assembly 200, and the valve body 30 is inserted into the mounting cavity 203 of the flow channel plate assembly 200 to form at least part of the first assembly; a plurality of plates are stacked, and welding sheets are provided between the contact surfaces of the plates, or paint is applied to the contact surfaces of adjacent plates, or a welding coating is provided on the contact surfaces of adjacent plates, and the valve body 30 and the plurality of plates are fixed by a clamp.

[0048] The first component is placed in a furnace and brazed and fixed; the valve body 30 and the multiple plates are welded together to form the flow plate assembly 200. The flow plate assembly 200 and the valve body 30 are formed by stamping and welding. The stamping process is relatively simple and mature, the investment in equipment is relatively small, and the quality of the parts in the later stage is relatively stable. The flow channel of the flow plate assembly 200 is formed by the stamping process. The flow channel can be designed to be relatively complex, which is suitable for complex thermal management systems. The flow channel of the flow plate assembly 200 is formed by stacking multiple layers of plates, which can form at least one layer of flow channel, that is, forming multiple layers of flow channels along the thickness direction of the flow plate assembly 200. Compared with other processes, the manufacture of multi-layer flow channels is relatively simple, and the setting of multi-layer flow channels can increase the spatial flexibility of the thermal management layout compared to the flat layout.

[0049] Assembling the valve seat 9, the sleeve 3, the valve core assembly, and the rotating component assembly to form at least part of the second assembly;

[0050] Insert the second component into the valve body 30 and fix it with threads or welding;

[0051] The stator component 2 is sleeved on the outer periphery of the second assembly, and the stator component 2 is fixedly engaged with the valve body 30. Specifically, the clip 82 on the bracket 8 is aligned with the clip groove 3023 on the valve body 30, and the stator component 2 is pressed downward. During the pressing process, the elastic portion 84 on the clip 82 gradually deforms and compresses as the downward pressing process progresses. When the clip groove 833 of the clip 83 is aligned with the stopper 302 on the valve body 30, the elastic portion 84 of the clip 82 begins to recover from the deformation process. At this time, at least a portion of the stopper 302 on the valve body 30 is inserted into the clip groove 833, thereby fixing the stator component 2.

[0052] 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. Although this specification has described the present invention in detail with reference to the above embodiments, it should be understood by those skilled in the art that the present invention can still be modified 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 valve device (100), characterized in that: The invention comprises a stator component (2), a bracket (8) and a valve body (30); the bracket (8) comprises a base (81) and a snap-fitting member (82); the base (81) and the snap-fitting member (82) are fixedly connected or form an integral structure; the base (81) and the stator component (2) are fixedly connected; the valve body (30) comprises a stopper (302); the stopper (302) is located on the outer periphery of the valve body (30); the snap-fitting member (82) comprises a clamping portion (83) and an elastic portion (84); along the axial direction of the stator component (2), the clamping portion (83) and the stopper (302) are clamped and fixed or connected in a limiting manner; along the circumferential direction of the stator component (2), the elastic portion (84) and the stopper (302) are in contact.

2. The valve device (100) according to claim 1, characterized in that The stopper (302) includes a first abutting portion (3021) and a second abutting portion (3022). Along the axial direction of the stator component (2), the first abutting portion (3021) and the second abutting portion (3022) are arranged opposite to each other. The stopper (302) also includes a slot (3023). Part of the stopper (302) is located in the slot (3023). The wall forming the slot (3023) includes a first side wall portion (3024) and a second side wall portion (3025). The first side wall portion (3024) and the second side wall portion (3025) are arranged opposite to each other. Part of the clamping portion (83) abuts against the first abutting portion (3021), and part of the clamping portion (83) abuts against the second abutting portion (3022).

3. The valve device (100) according to claim 2, characterized in that The clamping portion (83) is fixedly connected to the base (81), and part of the fastener (82) is located in the clamping groove (3023). The clamping portion (83) includes a clamping groove (833), the opening of the clamping groove (833) is located on the side wall of the clamping portion (83), and the clamping groove (833) passes through the inner and outer walls of the clamping portion (83). Part of the stopper (302) is located in the clamping groove (833), the first abutting portion (3021) abuts against the upper wall portion forming the clamping groove (833), and the second abutting portion (3022) abuts against the lower wall portion forming the clamping groove (833).

4. The valve device (100) according to claim 2 or 3, characterized in that The elastic portion (84) includes a bending portion (841) and a resisting portion (842). The elastic portion (84) is located on the opposite side of the clamping groove (833). One end of the bending portion (841) is fixedly connected to the bottom of the clamping portion (83), and the other end of the bending portion (841) is connected to the resisting portion (842). The resisting portion (842) is in contact with the first side wall portion (3024) or the second side wall portion (3025), and a certain distance is set between the resisting portion (842) and the side wall of the clamping portion (83).

5. The valve device (100) according to claim 4, characterized in that The clamping portion (83) includes a base portion (831) and a connecting portion (832). Along the radial direction of the valve body (30), the connecting portion (832) is folded inward or outward relative to the base portion (831). The base portion (831) is roughly a plate-like structure. The clamping groove (833) is located in the base portion (831). The connecting portion (832) is connected to the elastic portion (84), and the elastic portion (84) is bent upward relative to the connecting portion (832).

6. The valve device (100) according to claim 2-5, characterized in that The distance between the first side wall portion (3024) and the second side wall portion (3025) is defined as L1, and the distance between the two side walls of the clamping portion (83) is defined as L2, then L1≥L2; when the clamping member (82) is in a free state, the distance between the bottom wall forming the clamping groove (833) and the outer wall of the blocking portion (842) is defined as L3, then L3≥L1.

7. The valve device (100) according to claim 1, characterized in that The valve body (30) includes a flange portion (310), the stop portion (302) is located on the flange portion (310), and the valve body (30) is formed by stamping; at least one stop portion (302) is provided, and the number of the snap fasteners (82) is the same as the number of the stop portions (302).

8. A fluid control module, characterized in that: It comprises a flow channel plate assembly (200) and a valve device (100) according to any one of claims 1 to 7, wherein the flow channel plate assembly (200) comprises a first flow channel (201), a second flow channel (202) and an installation cavity (203), a portion of the valve body (30) is located in the installation cavity (203), and the valve body (30) is fixedly connected to the flow channel plate assembly (200) or is an integral structure.

9. The fluid control module according to claim 8, characterized in that: The flow channel plate assembly (200) comprises at least three plate bodies, at least three of the plate bodies are stacked and fixedly connected along the axial direction of the installation cavity (203), and at least three of the plate bodies cooperate with each other to form the first flow channel (201), the second flow channel (202), and the installation cavity (203); the plate bodies are stamped plates, at least one of which is stamped to form part of the first flow channel (201) and part of the installation cavity (203), and at least another plate body is stamped to form part of the second flow channel (202).

10. The fluid control module according to claim 9, characterized in that: The valve device (100) comprises a valve seat (9), a portion of the valve seat (9) is located in the inner cavity of the valve body (30), and the valve seat (9) is threadedly connected to the valve body (30) or fixed by welding or clamping.

11. A method for manufacturing a fluid control module, characterized in that: Stamping to form a plurality of plate bodies and a valve body (30); A plurality of plates are stacked to form a flow channel plate assembly (200), and the valve body (30) is inserted into the installation cavity (203) of the flow channel plate assembly (200) to form at least part of a first assembly; Placing the first component into a furnace and welding it; Assembling the valve seat (9) and the sleeve (3) to form at least part of the second assembly; Inserting the second component into the valve body (30) and fixing it by screwing or welding; The stator component (2) is sleeved on the outer periphery of the second component, and the stator component (2) and the valve body (30) are fixed by clamping.

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