Fluid control module and manufacturing method for fluid control module

Abstract

A fluid control module comprising: a flow channel plate assembly (200) and a valve component (1). The flow channel plate assembly (200) comprises 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 two opposite sides of the second plate body (23). The flow channel plate assembly (200) comprises 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 two opposite sides of the second plate body (23). A wall forming the first flow channel (201) is partially located on the first plate body (22), and a wall forming the second flow channel (202) is partially located in the third plate body (24). The flow channel plate assembly (200) is provided with a mounting cavity (203). A wall forming the mounting cavity (203) is partially located on the first plate body (22) and is partially located on the second plate body (23). The mounting cavity (203) is in communication with the first flow channel (201). At least part of the valve component (1) is located in the mounting cavity (203). The valve component (1) is fixedly connected to the flow channel plate assembly (200). Compared with a tiled arrangement manner, the structural design of the described fluid control module can increase the spatial flexibility of the layout of the fluid control module.

Description

Fluid control module and manufacturing method of fluid control module

[0001] This application claims priority to the following three Chinese patent applications, the entire contents of which are incorporated herein by reference:

[0002] 1. A valve device, a fluid control module and a manufacturing method of a fluid control module, filed with the China Patent Office on April 12, 2024, application number 202410444047.0, and entitled "A valve device, a fluid control module and a manufacturing method of a fluid control module";

[0003] 2. A fluid channel plate assembly, a fluid control module and a manufacturing method of a fluid control module, filed with the China Patent Office on April 12, 2024, application number 202410444049.X, and entitled "A fluid channel plate assembly, a fluid control module and a manufacturing method of a fluid control module";

[0004] 3. A fluid control module, filed with the China Patent Office on April 12, 2024, application number 202410444360.4, and entitled "A fluid control module". TECHNICAL FIELD

[0005] The present application relates to the technical field of thermal management, in particular to a fluid control module and a manufacturing method of a fluid control module. BACKGROUND

[0006] With the rapid development of automobile technology and the improvement of people's environmental awareness, the refrigeration and heating effect of automobile air conditioners has become the focus and research direction of people. In order to improve the cruising range, the heat pump air conditioning system scheme has become the main choice.

[0007] In related technologies, the thermal management components applied in the heat pump air conditioning system are various and generally arranged dispersedly. In order to solve such problems, the valve island or the flow channel plate is designed. However, the existing valve island refrigerant channel has a simple flow channel machined on the surface or inside of the aluminum block, and the flow channel plate is processed into a channel through the process of pressure casting or forging, and then fixed with a cover plate to form a flow channel. The structure is relatively complex, which is not conducive to the layout of the fluid control module in the three-dimensional space. SUMMARY

[0008] The purpose of the present application is to provide a fluid control module with a relatively simple structure.

[0009] The fluid control module provided by the embodiment of the present application comprises a flow channel plate assembly and a valve component, the flow channel plate assembly comprises a first plate body, a second plate body and a third plate body, the first plate body and the third plate body are respectively located on the opposite sides of the second plate body, the flow channel plate assembly comprises a first flow channel and a second flow channel, the first flow channel and the second flow channel are located on the opposite sides of the second plate body, the wall part forming the first flow channel is located on the first plate body, and the wall part forming the second flow channel is located on the third plate body; the flow channel plate assembly has a mounting cavity, the wall part forming the mounting cavity is located on the first plate body and the second plate body, the mounting cavity is in communication with the first flow channel, at least part of the valve component is located in the mounting cavity, and the valve component is fixedly connected with the flow channel plate assembly.

[0010] The fluid control module provided by the embodiment of the present application comprises a first plate body, a second plate body and a third plate body, the first plate body and the third plate body are respectively located on the opposite sides of the second plate body, the flow channel plate assembly has a first flow channel and a second flow channel, the first flow channel and the second flow channel are located on the opposite sides of the second plate body, that is, at least three plate bodies are stacked to form two layers of flow channels, compared with a flat arrangement, the structure of the present application is relatively simple, and the structure design can increase the spatial flexibility of the layout of the fluid control module; the flow channel plate assembly has a mounting cavity, the wall part forming the mounting cavity is located on the first plate body and the second plate body, at least part of the valve component is located in the mounting cavity, and the valve component is fixedly connected with the flow channel plate assembly. That is, part of the valve component is located in the flow channel plate, which is beneficial to the miniaturization of the integrated assembly.

[0011] The manufacturing method of the fluid control module provided by the embodiment of the present application comprises the following steps:

[0012] Punching to form the first plate body, the second plate body and the third plate body;

[0013] Stacking the first plate body, the second plate body and the third plate body to form at least part of the flow channel plate assembly;

[0014] Placing a valve body into a mounting cavity of the flow channel plate assembly and fixing the valve body by a clamp to form at least part of a first assembly;

[0015] Placing the first assembly into a tunnel furnace or a vacuum furnace for welding and fixing.

[0016] The manufacturing method of the flow channel plate provided by the embodiment of the present application comprises the following steps: punching to form a plurality of plate bodies, the punching process is relatively mature, and the manufacturing cost is relatively low, and the punching process can be used to manufacture a flow channel structure with a relatively complex structure. BRIEF DESCRIPTION OF DRAWINGS

[0017] FIG. 1 is a schematic structural diagram of a fluid control module according to an embodiment of the present application;

[0018] FIG. 2 is an exploded view of FIG. 1.

[0019] Fig. 3 is a sectional view of the fluid control module of Fig. 1;

[0020] Fig. 4 is an exploded view of the flow channel plate assembly and valve body of Fig. 3;

[0021] Fig. 5 is a sectional view of the flow channel plate assembly and valve body of Fig. 3;

[0022] Fig. 6 is a schematic view of the connection between the bracket and valve body of Fig. 1;

[0023] Fig. 7 is a schematic view of the bracket of Fig. 1;

[0024] Fig. 8 is a schematic view of the valve body of Fig. 1;

[0025] Fig. 9 is a schematic view of another embodiment of the flow channel plate assembly of Fig. 1;

[0026] Fig. 10 is an exploded view of the flow channel plate assembly of Fig. 9;

[0027] Fig. 11 is a sectional view of the flow channel plate assembly of Fig. 10;

[0028] Fig. 12 is a schematic view of the connection between the valve body and flow channel plate assembly of Fig. 9;

[0029] Fig. 13 is a schematic view of the connection between the valve member and flow channel plate assembly;

[0030] Fig. 14 is a schematic view of the flow channel plate assembly of Fig. 13;

[0031] Fig. 15 is an enlarged view of A in Fig. 14;

[0032] Fig. 16 is a schematic view of another embodiment of the flow channel plate assembly of Fig. 13;

[0033] Fig. 17 is a schematic view of the connection assembly of Fig. 13;

[0034] Fig. 18 is a schematic view of another embodiment of the connection between the valve member and flow channel plate assembly;

[0035] Fig. 19 is an enlarged view of B in Fig. 18;

[0036] Fig. 20 is a schematic view of the flow channel plate assembly of Fig. 18;

[0037] Fig. 21 is a schematic view of the connection assembly of Fig. 18;

[0038] Fig. 22 is a schematic view of another embodiment of the flow channel plate assembly of Fig. 18;

[0039] Fig. 23 is a schematic view of the fluid control module of embodiment 2 of the present application;

[0040] Fig. 24 is a sectional view of the fluid control module of Fig. 23;

[0041] Fig. 25 is a schematic view of a connection structure of the bracket and the valve body in Fig. 23;

[0042] Fig. 26 is a schematic view of the connection structure of the bracket and the valve body in Fig. 25 from another perspective;

[0043] Fig. 27 is a schematic view of the structure of the valve body in Fig. 23;

[0044] Fig. 28 is a schematic view of the structure of the valve body in Fig. 27 from another perspective;

[0045] Fig. 29 is a schematic view of the structure of the bracket in Fig. 23;

[0046] Fig. 30 is a schematic view of the structure of the bracket in Fig. 29 from another perspective. DETAILED DESCRIPTION

[0047] The present application will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the words "front", "back", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings; the words "bottom" and "top", "inner" and "outer" refer to the directions towards or away from the geometric center of a particular component.

[0048] It should be understood that although the first, second, third, fourth, etc. can be used in this application to describe various information, these information should not be limited to these descriptions. These terms are only used to distinguish the same type of information from each other. Multiple means two or more. In the case of no conflict, the features of the technical solutions in the present application can be complementary or replaced with each other.

[0049] The fluid control assembly of the technical solutions of the present application can have various embodiments, at least one of which can be applied to a vehicle thermal management system, at least one of which can be applied to a household thermal management system or a commercial thermal management system or other thermal management systems. The following will be described with reference to the accompanying drawings.

[0050] Example 1

[0051] With reference to FIGS. 1-22, the 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 located at 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 at opposite sides of the second plate body 23, a part of the wall forming the first flow channel 201 is located at the first plate body 22, and a part of the wall forming the second flow channel 202 is located at the third plate body 24; the first plate body 22 includes a first mounting portion 223, 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, a part of the wall forming the mounting cavity 203 is located at the first plate body 22, and a part of the wall forming the mounting cavity 203 is located at the second plate body 23, the mounting cavity 203 is in communication with the first flow channel 201, the wall forming the mounting cavity 203 includes the wall forming the first mounting hole 224, that is, the opening of the mounting cavity 203 is the first mounting hole 224; the fluid control module further includes a valve component 1, at least a part of the valve component 1 is located in the mounting cavity 203, and the valve component 1 is fixedly connected with the flow channel plate assembly 200. It should be noted that the coaxial arrangement here is not an absolute coaxial arrangement, but can be within the tolerance range; the valve component 1 and the flow channel plate assembly 200 are fixedly connected, which can be understood as that 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 are indirectly fixedly connected 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 in the axial direction of the mounting cavity 203, and it can also be understood that along the axial direction of the mounting cavity 203 of the flow channel plate assembly 200, the first flow channel 201 is closer to the valve component 1 than the second flow channel 202, that is, the first flow channel 201 and the second flow channel 202 are arranged in the axial direction of the mounting cavity 203, and in this scheme, a plurality of plate bodies are stacked to form a plurality of layers of flow channels, compared with the arrangement mode of the flow channel tiling, the design of this scheme can increase the spatial flexibility of the layout of the fluid control module.

[0052] The flow channel plate control module further comprises a valve body 30, at least part of the valve body 30 is located in the installation cavity 203, the valve body 30 is fixedly connected with the flow channel plate assembly 200; the valve body 30 has a containing cavity 301, part of the valve component 1 is located in the containing cavity 301, and the valve component 1 is fixedly connected with the valve body 30; the first flow channel 201 is in communication with the containing cavity 301, and the second flow channel 202 can be selectively in communication with the containing cavity 301. The valve body 30 has a containing cavity 301, the first flow channel 201 is in communication with the containing cavity 301, and the second flow channel 202 is in communication with the containing cavity 301. The on-off of the fluid from the first flow channel 201 to the second flow channel 202 or the size of the flow of the fluid from the first flow channel 201 to the second flow channel 202 is controlled by adjusting the valve component 1. In the related art, the valve body 30 or the valve island structure is located outside the flow part or the flow channel plate, the inlet of the fluid is arranged on the valve body 30 or the valve island, the fluid is bent upward from the first flow channel 201 to flow into the valve body 30, and then flows into the second flow channel 202 through the valve port of the valve body 30, so that the flow resistance is increased. In the embodiment, the first flow channel 201 and the second flow channel 202 are arranged in an up-down mode, part of the valve body 30 is located in the installation cavity 203, and then the valve port is also located in the installation cavity 203, the fluid in the first flow channel 201 flows downward to the second flow channel 202 through the valve port, the fluid flows in the direction of gravity, and there is no bending at the inlet and the outlet of the fluid, compared with the related art, the flow resistance of the fluid is relatively reduced.

[0053] The flow channel plate assembly 200 comprises at least three plate bodies, which are arranged and fixedly connected in axial stacking along the mounting cavity 203, and cooperate with each other to form the first flow channel 201, the second flow channel 202, and the mounting cavity 203. It should be noted that the at least three plate bodies form two flow channels, i.e., the first flow channel 201 and the second flow channel 202. Of course, in other embodiments, more than three plate bodies can be included, and the flow channel can also be three layers or more than three layers, i.e., a third flow channel, a fourth flow channel, etc. can be provided. The number of plate bodies and the number of layers of flow channels can be set according to the requirements of the system. Of course, the first flow channel 201 and the second flow channel 202 can also be provided in multiple pieces. The flow channel of the present application is formed by stacking a plurality of plate bodies, i.e., in the direction of stacking the plate bodies, a plurality of layers of flow channels are formed. Through the stacked structure of the plurality of plate bodies, the selection range of the processing technology selected by the plate bodies is wider, such as extrusion, forging, stamping, etc. Compared with the flat arrangement, the structural design of the present application can increase the spatial flexibility of the heat management layout. In the present application, at least one of the first mounting portion 223, the second mounting portion 231, the partial wall portion forming the first flow channel 201, and the partial wall portion forming the second flow channel 202 is stamped. In order to facilitate manufacturing, in a specific embodiment, the plate bodies are stamping plates, wherein at least one plate body 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 body is stamped to form a portion of the second flow channel 202. The stamping process is relatively mature, and the manufacturing cost is relatively low. Compared with other processes, the stamping process can be used to manufacture plate bodies with relatively complex structural design of the flow channel.

[0054] With reference to FIGS. 1-8, one of the embodiments of the runner plate assembly 200 is described in detail. The runner 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 along an axial direction. The first plate 22 has a first recess 221. An opening of the first recess 221 faces the second plate 23 along the axial direction. The first plate 22 cooperates with the second plate 23 to form a portion of a first runner 201. The wall of the first runner 201 includes a wall of the first recess 221 and a wall of the second plate 23. The wall of the first recess 221 includes a first bottom wall portion 222 opposite to the opening of the first recess 221. The runner plate assembly 200 includes a mounting cavity 203. The mounting cavity 203 is in communication with the first runner 201. Alternatively, the mounting cavity 203 is a portion of the first runner 201. The first plate 22 includes a first mounting portion 223. The first mounting portion 223 is located at the first bottom wall portion 222. The first mounting portion 223 includes a first mounting hole 224. The first mounting hole 224 penetrates the first bottom wall portion 222 along the axial direction. The first mounting hole 224 is an opening of the mounting cavity 203. The wall of the mounting cavity 203 includes a wall of the first recess 221 and a wall of the second plate 23. The second plate 23 has a second mounting portion 231. The second mounting portion 231 has a second mounting hole 232. The second mounting hole 232 penetrates the second plate 23 along the axial direction. The third plate 24 has a third recess 241. An opening of the third recess 241 faces the second plate 23 along the axial direction. The second plate 23 and the third plate 24 cooperate to form a portion of a second runner 202. The wall of the second runner 202 includes a wall of the third recess 241 and a wall of the second plate 23. The second mounting hole 232 is in communication with the first runner 201 and the second runner 202. In this embodiment, the first mounting hole 224 and the second mounting hole 232 are coaxial or approximately coaxial along the axial direction. The first plate 22 is fixedly and sealingly connected to the second plate 23. The second plate 23 is fixedly and sealingly connected to the third plate 24. In this embodiment, the first plate 22 is welded to the second plate 23. The second plate 23 is welded to the third plate 24. The welding is performed by applying a welding material on a contact surface of each plate or by providing a welding sheet between each plate.In the embodiment, the first plate body 22, the second plate body 23 and the third plate body 24 are stamping 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 in a stamping manner, the first mounting hole 224 can be understood as a flanging hole, the grooves are formed by stamping a single plate, the plates are stacked and welded to seal to form flow channels, the design of the flow channels can be more complex, the manufacturing difficulty is reduced, and the mounting cavity 203 belongs to a 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 scheme of the application reduces the weight of the flow channel plate and relatively simplifies the manufacturing of the flow channel plate.

[0055] In some other embodiments, the flow channel plate assembly 200 further comprises a fourth plate body 25, as shown in FIGS. 9-11, which is located between the second plate body 23 and the third plate body 24 along the stacking direction of the plate bodies. The second plate body 23 has a second groove 233, which has an opening facing the first plate body 22 along the axial direction. The first plate body 22 cooperates with the second plate body 23 to form a part of the first flow channel 201, i.e., the wall forming the first flow channel 201 includes the wall forming the second groove 233 and the wall of the part of the first plate body 22. It can be understood that the first plate body 22 can be a flat plate structure or can be provided with a groove to cooperate with the second plate body 23 to form a part of the flow channel. The flow channel plate assembly 200 comprises a mounting cavity 203, which communicates with the first flow channel 201 or can be understood as a part of the first flow channel 201. The first plate body 22 comprises a first mounting portion 223 protruding from the upper end of the first plate body 22. The first mounting portion 223 comprises a first mounting hole 224, which penetrates the upper and lower ends of the first plate body 22 along the axial direction. The first mounting hole 224 is the opening of the mounting cavity 203, i.e., the wall forming the mounting cavity 203 includes the wall forming the part of the second groove 233 and the wall of the part of the first plate body 22. The second plate body 23 has a second mounting portion 231, which has a second mounting hole 232 located at the bottom wall forming the mounting cavity 203. The second mounting hole 232 penetrates the second plate body 23 along the axial direction, i.e., the first mounting hole 224 and the second mounting hole 232 are coaxial or approximately coaxial. It should be noted that approximately coaxial here means within the tolerance range. The third plate body 24 has a third groove 241, which has an opening facing the fourth plate body 25 along the axial direction. The fourth plate body 25 and the third plate body 24 cooperate to form a part of the second flow channel 202, i.e., the wall forming the second flow channel 202 includes the wall forming the third groove 241 and the wall of the part of the fourth plate body 25. The fourth plate body 25 has a third mounting portion 251, which comprises a third mounting hole 252. The third mounting hole 252 penetrates the upper and lower ends of the fourth plate body 25 along the axial direction. A first plane is defined, which is perpendicular to the axial direction of the mounting cavity 203. The projection of the third mounting hole 252 on the first plane includes the projection of the second mounting hole 232 on the first plane. It can be understood that the fourth plate body 25 can be a flat plate structure or can be provided with a groove to cooperate with the third plate body 24 to form a part of the flow channel and / or the fourth plate body 25 cooperates with the second plate body 23 to form a part of the flow channel. In this embodiment, the first mounting hole 224, the second mounting hole 232, and the third mounting hole 252 are coaxial or approximately coaxial along the axial direction, and the diameter of the third mounting hole 252 is greater than the diameter of the second mounting hole 232.The first plate body 22 is fixedly and sealingly connected with the second plate body 23, the second plate body 23 is fixedly and sealingly connected with the fourth plate body 25, the third plate body 24 is fixedly and sealingly connected with the fourth plate body 25, and specifically, the fixed mode in the embodiment is welding fixation, and the contact surfaces of the plate bodies are coated with solder or welding sheets are arranged between the plate bodies for furnace welding, that is, the contact surface of the first plate body 22 and the second plate body 23 forms a first welding part, the contact surface of the second plate body 23 and the fourth plate body 25 forms a second welding part, and the contact surface of the third plate body 24 and the fourth plate body 25 forms a third welding part. In the embodiment, the first plate body 22, the second plate body 23, the third plate body 24 and the fourth plate body 25 are stamping runner 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 grooves are formed by stamping a single plate, and the runner is formed by stacking and welding the plates, the design of the runner can be more complex, the manufacturing difficulty is reduced, and 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 runner plate, the technical scheme of the application reduces the weight of the runner plate and relatively simplifies the manufacturing of the runner plate.

[0056] The runner plate control module further comprises a valve body 30, at least part of the valve body 30 is located in the mounting cavity 203 of the runner plate assembly 200, and the valve body 30 is fixedly connected with the runner plate assembly 200. The valve body 30 has a containing cavity 301, part of the valve part 1 is located in the containing cavity 301, and the valve part 1 is fixedly connected with the valve body 30; the valve body 30 comprises a flow-through hole 39, the flow-through hole 39 is located on the peripheral wall of the valve body 30, and the flow-through hole 39 penetrates the inner and outer walls of the valve body 30. The first runner 201 is in communication with the containing cavity 301 through the flow-through hole 39, and the second runner 202 can selectively communicate with the containing cavity 301. In the scheme, the valve body 30 is located in the runner plate assembly 200, the valve body 30 is sealingly connected with the second mounting part 231, in the state that the valve part 1 is not installed, the first runner 201 and the second runner 202 are in communication through the flow-through hole 39 of the valve body 30, and the structure can relatively reduce the resistance of fluid flow.

[0057] The valve body 30 and the flow channel plate assembly 200 are connected as follows. In one embodiment, as shown in FIG. 3, the lower end of the valve body 30 is located in the second mounting hole 232, i.e., the peripheral wall of the lower end of the valve body 30 is arranged opposite to the wall forming the second mounting hole 232, the peripheral wall of the lower end of the valve body 30 is fixed and sealed to the second mounting portion 231, and the peripheral wall of the upper end of the valve body 30 is fixed and sealed to the first mounting portion 223. In another embodiment, the lower end of the valve body 30 is fixed and sealed to the second mounting portion 231, and the upper end of the valve body 30 is fixed and sealed to the first mounting portion 223. It can be understood that the fixed and sealed manner in the present scheme includes welding, i.e., the upper end of the valve body 30 is welded to the first mounting portion 223 and the first plate body 22, the lower end of the valve body 30 is welded to the second mounting portion 231 and the second plate body 23, and the first plate body 22, the second plate body 23, and the third plate body 24 are stacked and the contact areas between adjacent plate bodies are welded, so that the valve body 30, the first plate body 22, the second plate body 23, and the third plate body 24 are pre-fixed and connected, and then are placed in a tunnel furnace or a vacuum furnace for brazing, thereby simplifying the manufacturing process. The valve body 30 includes a flow-through hole 39, which penetrates the inner and outer walls of the valve body 30, is in communication with the accommodation cavity 301, is in communication with the first flow channel 201, and is in communication with the second flow channel 202. In the present embodiment, the first flow channel 201 is in communication with the second flow channel 202 through the flow-through hole 39 on the valve body 30 and the accommodation cavity 301, and the fluid flowing from the first flow channel 201 to the second flow channel 202 does not bend, thereby relatively reducing the flow resistance of the fluid. In combination with FIG. 4, the valve body 30 has a hollow cylindrical structure, includes a first fixed portion 32, a main body portion 31, and a second fixed portion 33, and along the stacking direction of the plate bodies, the first fixed portion 32 is located on one side of the main body portion 31, the second fixed portion 33 is located on the other side of the main body portion 31, the first fixed portion 32 is closer to the first plate body 22 than the second fixed portion 33, and the first fixed portion 32, the main body portion 31, and the second fixed portion 33 are an integral structure. The outer diameter of the first fixed portion 32 is greater than that of the main body portion 31, and the outer diameter of the main body portion 31 is greater than that of the second fixed portion 33. It should be noted that the outer diameter referred to herein is the outer diameter of the first fixed portion 32, the main body portion 31, and the second fixed portion 33 in the orthogonal projection on the first plane. It can also be understood that at least part of the outer peripheral wall of the first fixed portion 32 is away from the central axis of the valve body 30 relative to the outer peripheral wall of the main body portion 31, and the outer peripheral wall of the second fixed portion 33 is closer to the central axis of the valve body 30 relative to the outer peripheral wall of the main body portion 31.The valve body 30 includes a stepped portion 36 located at the connection between the main body portion 31 and the second fixing portion 33. When the valve body 30 is inserted into the installation cavity 203, the second fixing portion 33 of the valve body 30 passes through the second installation hole 232, and the stepped portion 36 abuts against the bottom wall forming the installation cavity 203. The stepped portion 36 is sealingly fixed to the bottom wall forming the installation cavity 203 to prevent fluid from leaking from the first flow channel 201 into the second flow channel 202 through the second installation hole 232. The first fixing portion 32 of the valve body 30 is interference-fitted or clearance-fitted with the side wall forming the first installation hole 224, i.e., the outer peripheral wall of the first fixing portion 32 is interference-fitted or clearance-fitted with the side wall forming the first installation hole 224. The valve body 30 is provided with the stepped portion 36, one end of the stepped portion 36 abuts against and is fixedly welded to the second installation portion 231, and the side of the stepped portion 36 extends toward the second flow channel 202 relative to the end of the stepped portion 36, and the side of the stepped portion 36 is located in the second installation hole 232, thereby reducing the weight of the valve body 30. Of course, in other embodiments, the valve body 30 includes only the first fixing portion 32 and the main body portion 31, the first fixing portion 32 is fixedly welded to the first installation portion 223, and the lower end of the main body portion 31 abuts against and is fixedly welded to the second installation portion 231. The valve body 30 includes a receiving groove 34 located in the outer wall of the first fixing portion 32 in the radial direction of the valve body 30, and the opening of the receiving groove 34 faces the wall portion forming the first installation hole 224. The receiving groove 34 is used to accommodate solder. When welding, the solder is heated and melted to fill the receiving groove 34 and the gap between the wall portion forming the first installation hole 224 and the outer wall of the first fixing portion 32 to form a weld, thereby fixedly and sealingly connecting the valve body 30 and the flow channel plate assembly 200. In the above-mentioned embodiments, as shown in FIG. 8, the valve body 30 is formed by extrusion, casting, or forging. As shown in FIG. 12, the valve body 30 can also be formed by stamping.

[0058] The valve device 100 can be applied to a vehicle thermal management system or an air conditioning system, and is commonly used as a throttling element or a switching element in the vehicle thermal management system. The valve device 100 in the present application can be a one-way valve, an electromagnetic valve for controlling the on-off of fluid, or a throttling expansion valve. In the present scheme, an electronic expansion valve is taken as an example for detailed description. The valve device 100 includes a valve component 1 and a stator component 2 located at least partially around the valve component 1. The stator component 2 is fixedly or limitingly connected to the valve component 1, and further, the stator component 2 and the valve component 1 can be sealingly arranged. This is beneficial to prevent water vapor or other impurities in the external environment from entering the assembly gap between the stator component 2 and the valve component 1, causing corrosion or failure in the interior of 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, i.e., 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 external environment through the stator component 2.

[0059] The valve component 1 comprises a valve seat 9, a nut assembly, a sleeve 3, a rotor assembly and a valve core assembly; wherein the sleeve 3 is in a tubular structure with one end open and the other end closed, the one end of the sleeve 3 is welded and fixed with 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, the valve core assembly is in transmission connection with the rotor assembly; a predetermined current is input into the stator component 2, so as to generate an excitation magnetic field to drive the rotor assembly to rotate, the rotor assembly drives the valve core assembly to rotate, the valve core assembly is in threaded cooperation with the nut assembly, and the rotation of the rotor assembly is converted into the axial action of the valve core assembly relative to the valve seat 9. The valve component 1 further comprises a valve port seat 7 having a valve port, part of the valve port seat 7 is located in the inner cavity of the valve seat 9, and the valve port seat 7 is in limiting connection with the valve seat 9, the valve core assembly can axially act relative to the valve port, the valve core part of the valve core assembly cooperates with the valve port to adjust the flow area of the valve port or the opening degree of the valve port, so as to realize the flow regulation of the refrigerant.

[0060] Part of the valve component 1 is located in the valve body 30 of the flow channel plate assembly 200, and the valve component 1 is fixedly connected or limitingly connected with the flow channel plate assembly 200. Specifically, the valve seat 9 is in a hollow cylindrical structure, part of the valve seat 9 is located in the accommodating cavity 301 of the valve body 30, and the valve seat 9 is fixedly or limitingly connected with the valve body 30. It should be noted that the fixed connection herein includes threaded connection, welding fixation, adhesion or the connection mode of the combination of any two of the above three, and the limiting connection includes buckle, snap spring and the like.

[0061] In combination with FIGS. 13-21, the fluid control module comprises the flow channel plate assembly 200, the valve component 1 and the connecting element 40, the flow channel plate assembly 200 comprises a first mounting portion 223, the first mounting portion 223 comprises a first mounting hole 224, at least part of the first mounting portion 223 is stamped, the flow channel plate assembly 200 comprises a mounting cavity 203, the wall forming the mounting cavity 203 comprises the wall forming the first mounting hole 224; at least part of the valve component 1 is located in the mounting cavity 203, and the connecting element 40 clamps and fixes the valve component 1 and the flow channel plate assembly 200. Compared with the threaded connection, the clamping and fixing is relatively simple and convenient to install.

[0062] With reference to FIG. 13, the clamping and fixing of the valve component 1 and the flow channel plate assembly 200 will be described in detail. The 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 located on opposite sides of the second plate body 23. The flow channel plate assembly 200 has 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. At least one of the wall portions forming the first flow channel 201 and the wall portion forming the second flow channel 202 is stamped and formed. At least a portion of the first mounting portion 223 is located on the first plate body 22. The fluid control module further includes a connecting element 40 that clamps and fixes the valve component 1 and the flow channel plate assembly 200. The flow channel plate assembly 200 includes a mounting cavity 203. At least a portion of the valve component 1 is located in the mounting cavity 203. The connecting element 40 is located in the mounting cavity 203. The first mounting portion 223 includes a limiting portion 35. The valve component 1 has a support portion 91 located on the outer periphery of the valve component 1. The connecting element 40 is clamped between the limiting portion 35 and the support portion 91, thereby limiting and fixing the flow channel plate assembly 200 and the valve component 1. In the related art, the valve device 100 is threadedly connected and fixed to the valve body 30. That is, the valve seat 9 of the valve device 100 is machined with external threads, and the valve body 30 is machined with internal threads. The internal threads and the external threads are matched. The threaded fastening method has a long assembly process time and complex thread machining. The clamping assembly method of the present embodiment is fast and reduces the machining process of the parts.

[0063] The valve component 1 comprises a valve seat 9, a support portion 91 is located on the valve seat 9, the support portion 91 protrudes away from the central axis of the valve seat 9 relative to the outer wall portion of the valve seat 9, that is, the outer diameter of the support portion 91 is greater than the outer diameter of the upper segment portion above the support portion 91 and the lower segment portion below the support portion 91 on the valve seat 9, and it can also be understood that the support portion 91 is a protruding structure protruding from the outer wall of the valve seat 9. The first mounting portion 223 comprises a stepped portion 37, the stepped portion 37 comprises a first bottom portion 371 and a first side portion 372, a limiting portion 35 is located on the first side portion 372, the lower end portion of the support portion 91 abuts against the first bottom portion 371, the lower end portion of the connecting element 40 abuts against the upper end portion of the support portion 91, and / or the upper end portion of the connecting element 40 abuts against the limiting portion 35. In the present scheme, along the direction of stacking the plate body, or along the axial direction of the mounting cavity 203, the connecting element 40 is located between the limiting portion 35 and the support portion 91, thereby fixing the valve component 1 and the flow channel plate assembly 200. It should be noted here that, in the ideal state, one end portion of the connecting element 40 abuts against the limiting portion 35, and the other end portion of the connecting element 40 abuts against the support portion 91 of the valve seat 9, but due to the existence of manufacturing tolerance and assembly tolerance, there is a small gap between the one end portion of the connecting element 40 and the limiting portion 35 or between the other end portion of the connecting element 40 and the support portion 91 of the valve seat 9. During the operation of the fluid control module, the existence of fluid pressure in the flow channel, the one end portion of the connecting element 40 abuts against the limiting portion 35, and the other end portion of the connecting element 40 abuts against the support portion 91 of the valve seat 9.

[0064] As shown in FIGS. 13-17, the first mounting portion 223 is a split structure, and the first mounting portion 223 includes a first sub-mounting portion 2231 and a second sub-mounting portion 2232, and the first sub-mounting portion 2231 and the second sub-mounting portion 2232 are fixedly connected. It should be noted that the fixedly connected manner includes welding, threaded connection, adhesion, and the above-mentioned two combinations. The first sub-mounting portion 2231 includes an assembly hole 2233, and the second sub-mounting portion 2232 is located in the assembly hole 2233. Part of the mounting cavity 203 is located in the second sub-mounting portion 2232, and the limiting portion 35 is located in the second sub-mounting portion 2232. The second sub-mounting portion 2232 includes a stepped portion 37, and the stepped portion 37 is formed on the inner wall of the second sub-mounting portion 2232. The first sub-mounting portion 2231 is stamped and formed. Specifically, the first sub-mounting portion 2231 is a flange portion stamped and formed from the first plate body 22. It can be understood that the assembly hole 2233 is a flange hole stamped and formed from the first plate body 22, and at least part of the second sub-mounting portion 2232 is located in the assembly hole 2233. In this embodiment, the second sub-mounting portion 2232 is formed by pressure casting or forging, and the second sub-mounting portion 2232 has the stepped portion 37 and the first mounting hole 224. Part of the valve seat 9 is located in the first mounting hole 224, and the supporting portion 91 of the valve seat 9 abuts against the first bottom portion 371 of the stepped portion 37, that is, the first bottom portion 371 is used to support the valve seat 9, thereby limiting the downward movement of the valve seat 9 along the axial direction. The second sub-mounting portion 2232 has the limiting portion 35, and the limiting portion 35 is formed on the inner wall of the second sub-mounting portion 2232. In some embodiments, the limiting portion 35 is a limiting groove 351, and the limiting groove 351 is arranged along the circumferential direction of the inner wall of the second sub-mounting portion 2232. The opening of the limiting groove 351 faces the central axis of the second sub-mounting portion 2232, and the limiting groove 351 is located above the supporting portion 91 of the valve seat 9. The wall forming the limiting groove 351 includes a first wall portion 352, a second wall portion 353, and a third wall portion 354. In the direction of stacking the plate bodies, the first wall portion 352 and the second wall portion 353 are oppositely arranged, and the third wall portion 354 is oppositely arranged with the opening of the limiting groove 351. It can be understood that the second sub-mounting portion 2232 can also be the valve body 30 shown in FIGS. 3 and 12.

[0065] The fluid control module further comprises a connecting element 40, which is located in the second sub-mounting portion 2232 and abuts against the supporting portion 91 of the valve seat 9 at one end thereof in the direction of stacking of the plate bodies, thereby limiting axial movement of the valve seat 9 relative to the second sub-mounting portion 2232. The connecting element 40 has a hollow structure, and in this embodiment, is in the form of a ring-shaped plate, which comprises a first end portion 41 and a second end portion 42 opposite to each other in the axial direction, and further comprises a notched portion 43 having a notch extending through the first end portion 41 and the second end portion 42 and through the hollow portion of the connecting element 40. The connecting element 40 is elastically deformable, and can be deformed by applying a force thereto. At least a portion of the connecting element 40 is located in the limiting groove 351, and the second end portion 42 of the connecting element 40 abuts against the supporting portion 91 of the valve seat 9, and / or the first end portion 41 of the connecting element 40 abuts against the first wall portion 352 of the second sub-mounting portion 2232. It should be noted that, in the ideal state, the first end portion 41 of the connecting element 40 abuts against the first wall portion 352 of the second sub-mounting portion 2232, and the second end portion 42 of the connecting element 40 abuts against the supporting portion 91 of the valve seat 9, but due to manufacturing and assembly tolerances, there is a small gap between the first end portion 41 of the connecting element 40 and the first wall portion 352 of the second sub-mounting portion 2232 or between the second end portion 42 of the connecting element 40 and the supporting portion 91 of the valve seat 9. During operation of the fluid control module, the first end portion 41 of the connecting element 40 abuts against the first wall portion 352 of the second sub-mounting portion 2232, and the second end portion 42 of the connecting element 40 abuts against the supporting portion 91 of the valve seat 9 due to the fluid pressure in the flow channel. The connecting element 40 and the limiting portion 35 are used in combination in the present application, which can realize quick insertion of the valve assembly 1 and the second sub-mounting portion 2232, and the installation is relatively simple and convenient. In addition, the structure of the limiting groove 351 is relatively simple and easy to process and form.

[0066] In some other embodiments, as shown in FIG. 16, the limiting portion 35 is a limiting protrusion 355, the limiting protrusion 355 is located inside the second sub-mounting portion 2232, the limiting protrusion 355 protrudes from the inner wall of the second sub-mounting portion 2232, in the direction of stacking the plate body, the limiting protrusion 355 is located on one side of the connecting element 40, the support portion 91 on the valve seat 9 is located on the other side of the connecting element 40, the first end portion 41 of the connecting element 40 abuts the lower end portion of the limiting protrusion 355, and / or the second end portion 42 of the connecting element 40 abuts the upper end portion of the support portion 91 of the valve seat 9. The limiting protrusion 355 is provided one, the limiting protrusion 355 is continuously arranged in the circumferential direction of the valve body 30, or the limiting protrusion 355 is provided two or more, and the plurality of limiting protrusions 355 are uniformly arranged in the circumferential direction of the second sub-mounting portion 2232. In this application, the limiting portion 35 is the limiting groove 351 or the limiting protrusion 355, and the structures of the two are relatively simple and easy to process and realize.

[0067] In this scheme, the first sub-mounting portion 2231 and the second sub-mounting portion 2232 are welded and fixed, the second sub-mounting portion 2232 includes an accommodation groove 34, the accommodation groove 34 is located on the outer periphery of the second sub-mounting portion 2232, and the opening of the accommodation groove 34 faces the wall forming the assembly hole 2233, and the accommodation groove 34 is used to place the solder.

[0068] As shown in FIGS. 18-21, the first mounting portion 223 is an integral structure, and the first mounting portion 223 is formed by stamping; the limiting portion 35 is a limiting hole 356, and the limiting hole 356 is located on the first side portion 372, and part of the connecting element 40 is located in the limiting hole 356. Specifically, the first plate body 22 is formed by stamping to form the first mounting portion 223, and the first mounting portion 223 includes the first mounting hole 224, the limiting portion 35, and the stepped portion 37, the stepped portion 37 includes the first bottom portion 371 and the first side portion 372, and the limiting portion 35 is located on the first side portion 372. In this scheme, the limiting portion 35 is a limiting hole 356, and at least one limiting hole 356 is provided, and the limiting hole 356 is arranged in the circumferential direction of the first side portion 372. In this scheme, the connecting element 40 has a hollow structure, and the connecting element 40 includes the clamping portion 44, the crimping portion 45, and the notch portion 43, the notch portion 43 has a notch, the connecting element 40 can be elastically deformed, the clamping portion 44 is arranged adjacent to and fixedly connected to the crimping portion 45; at least part of the clamping portion 44 is located in the limiting hole 356, the crimping portion 45 abuts against the supporting portion 91 of the valve seat 9, that is, the clamping portion 44 is limited to be clamped in the limiting hole 356, the crimping portion 45 abuts against the supporting portion 91, and the axial movement of the valve seat 9 is limited. Specifically, the connecting element 40 is a hollow tubular structure, that is, the cross section of the connecting element 40 is similar to a circle but is not limited to a circle, and in other embodiments, it can also be a square, a polygon, etc., as long as the functions of this scheme can be achieved, and all are within the protection scope of this application. The clamping portion 44 is away from the central axis of the connecting element 40 relative to the crimping portion 45, the number of clamping portions 44 is greater than the number of crimping portions 45 by 1, and at least one crimping portion 45 is provided. The first mounting portion 223 of this scheme is formed by stamping as an integral structure, the structure is relatively simple, and the manufacturing and assembly process is relatively simple.

[0069] It should be noted that the above-mentioned embodiments can be used in cross, for example, the first mounting portion 223 is a separate structure, and the first sub-mounting portion 2231 and the second sub-mounting portion 2232 are both formed by stamping, as shown in FIG. 22, and the limiting portion 35 is a limiting hole 356, and the connecting element 40 includes the clamping portion 44 and the crimping portion 45, as long as the clamping and fixing of this application can be achieved, and all are within the protection scope of this application, which will not be described in detail here.

[0070] The valve device 100 further includes a stator component 2, the stator component 2 is located at least partially on the outer periphery of the valve component 1, and the stator component 2 is fixedly or limitingly connected to the valve component 1; the stator component 2 includes a coil assembly 21 and an injection molding portion 211, and the injection molding portion 211 covers at least part of the coil assembly 21, that is, the stator component 2 is formed by insert injection molding at least the coil assembly 21, and the valve device 100 is electrically connected and / or signal connected to the outside through the stator component 2. The stator component 2 is limitingly connected to the flow channel plate assembly 200, and specifically, the stator component 2 further includes a bracket 8, the bracket 8 is sleeved on the outer periphery of the sleeve 3 and is fixedly connected to the injection molding portion 211.

[0071] The bracket 8 comprises a base 81 and a buckle 82, the base 81 is fixedly connected or in one piece with the buckle 82, the base 81 comprises a plurality of through holes arranged along the circumference of the base 81, the lower end of the injection molding part 211 is provided with a mounting column 212, the number and position of the mounting column 212 correspond to the through holes on the base 81, the mounting column 212 passes through the through hole on the base 81, and the mounting column 212 is deformed by extrusion, thereby fixing the bracket 8 and the stator component 2. The buckle 82 comprises a connecting part 821 and a clamping jaw part 822, the clamping jaw part 822 is bent towards the central axis of the base 81 relative to the connecting part 821; the valve body 30 comprises a stop portion 38, at least part of the clamping jaw part 822 of the buckle 82 is located in the stop portion 38, thereby limiting the movement of the stator component 2. In the embodiment, the stop portion 38 of the valve body 30 is a clamping groove 381, the clamping groove 381 is located on the outer wall of the first fixing part 32 of the valve body 30, and the clamping groove 381 is located above the accommodating groove 34. During installation, at least part of the clamping jaw part 822 abuts against the upper end of the clamping groove 381, thereby limiting the axial movement of the stator component 2, and at least part of the clamping jaw part 822 abuts against both sides of the clamping groove 381, thereby limiting the circumferential movement of the stator component 2. In the embodiment, the limiting portion 35 for limiting the connecting element 40 and the stop portion 38 for limiting the bracket 8 are both arranged on the valve body 30, the structure is relatively simple, and according to different thermal management systems, a standard valve body 30 can be arranged, thereby reducing the manufacturing cost.

[0072] The valve device 100 further comprises a sealing ring 11 located between the stator component 2 and the valve component 1, which is beneficial to prevent water vapor or other impurities in the external environment from entering the assembly gap between the stator component 2 and the valve component 1, causing corrosion or failure inside the stator component 2. Specifically, the valve component 1 comprises a gasket, one end of the gasket is located on the support part 91 of the valve seat 9, and the other end of the gasket is used to support the sealing ring 11; the valve component 1 comprises a sealing cavity 12, the wall forming the sealing cavity 12 comprises the outer wall of part of the sleeve 3, the outer wall of part of the injection molding part 211 and the upper end of the gasket, and the sealing ring 11 is located in the sealing cavity 12.

[0073] A manufacturing method of a fluid control module, the manufacturing steps of the fluid control module are as follows:

[0074] The first plate body 22, the second plate body 23 and the third plate body 24 are formed by stamping, and at least two of the three plate bodies are formed by stamping to form grooves;

[0075] The valve body 30 is formed by stamping, die casting or forging;

[0076] The first plate body 22, the second plate body 23 and the third plate body 24 are stacked to form the flow channel plate assembly 200, 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 plate bodies are stacked, a soldering sheet is arranged between the contact surfaces of the plate bodies, or the contact surfaces of adjacent plate bodies are coated with paint, or the contact surfaces of adjacent plate bodies are provided with a welded coating, and the valve body 30 and the plurality of plate bodies are fixed by a clamp.

[0077] The first assembly is placed in a furnace for brazing and fixing; the valve body 30 and the plurality of plate bodies are collectively welded to form the flow channel plate assembly 200. The flow channel plate assembly 200 and the valve body 30 are formed by stamping and welding processes. 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 channel plate assembly 200 is formed by a stamping process, and the flow channel can be designed to be relatively complex, which is suitable for complex thermal management systems. Moreover, the flow channel of the flow channel plate assembly 200 is formed by stacking multiple plate bodies, which can form at least one layer of flow channel, i.e., along the thickness direction of the flow channel plate assembly 200, multiple layers of flow channels are formed. Compared with other processes, the manufacturing of multiple layers of flow channels is relatively simple, and the arrangement of multiple layers of flow channels can increase the spatial flexibility of the thermal management layout compared with the flat arrangement.

[0078] The valve seat 9, the sleeve 3, the valve core assembly and the rotating component assembly are assembled to form at least part of the second assembly;

[0079] The second assembly is inserted into the valve body 30 and is fixed by screwing or welding;

[0080] The stator part 2 is sleeved on the outer periphery of the second assembly, and the stator part 2 and the valve body 30 are clamped and fixed.

[0081] The manufacturing method of the flow channel plate provided by the embodiment of the application can stamp a plurality of plate bodies, the stamping process is relatively mature, and the manufacturing cost is relatively low. By using the stamping process, a flow channel structure with a relatively complex structural design can be manufactured.

[0082] Embodiment 2

[0083] With reference to Figs. 23-30, the difference between the embodiment 2 and the embodiment 1 is the connection structure of the stator component and the valve seat. Specifically, the fluid control module comprises the flow channel plate assembly 200 and the valve device 100, the flow channel plate assembly 200 comprises the mounting cavity 203, part of the valve device 100 is located in the mounting cavity 203 of the flow channel plate assembly 200, and the flow channel plate assembly 200 and the valve device 100 are fixedly connected or limitingly connected. It should be noted that the fixed connection in the embodiment includes welding, screwing, bonding or the combination of any two of the above, and the limiting connection includes clamping and other fixing modes. The valve body 30 is located in the mounting cavity 203, and the valve body 30 is fixedly connected with the flow channel plate assembly 200 or is an integral structure. Specifically, the valve device 100 comprises the stator component 2, the bracket 8 and the valve body 30. The bracket 8 comprises the base 81 and the buckle 82, the base 81 and the buckle 82 are fixedly connected or are an integral structure, and the base 81 is fixedly connected with the stator component 2. The valve body 30 comprises the stop portion 302, the stop portion 302 is located on the outer periphery of the valve body 30, the buckle 82 comprises the clamping portion 83 and the elastic portion 84, the clamping portion 83 is clamped and fixed with the stop portion 302 to limit the up-down movement of the stator component 2 along the axial direction, one end of the elastic portion 84 is fixedly connected with the clamping portion 83, and the other end of the elastic portion 84 abuts against the stop portion 302 to limit the circumferential movement of the stator component 2. In the related art, the connection mode of the stator component 2 and the valve body 30 adopts the screw or bolt connection mode, the installation direction of the screw is perpendicular to the installation direction of the stator component 2, a certain operation and installation space needs to be reserved, which increases the volume of the thermal management module. In addition, the installation mode of the screw and the bolt is suitable for the valve body 30 with a certain thickness, such as the valve body 30 manufactured by extrusion, die casting or forging process, and is not suitable for thin sheet metal parts. In the embodiment, the stator component 2 and the valve body 30 adopt the clamping connection mode, the clamping portion 83 is clamped and fixed with the stop portion 302 to limit the up-down movement of the stator component 2 along 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 mode of the present application has a relatively simple structure, a wide range of applications, and is also suitable for the valve body 30 being a thin sheet metal part.

[0084] The stator component 2 in the embodiment is located at the outer periphery of at least part of the valve component 1, and is fixedly or limitingly connected with the valve component 1; the stator component 2 comprises a coil assembly 21 and an injection molding part 211, the injection molding part 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, and the valve device 100 is electrically connected and / or signal connected with the outside through the stator component 2. The stator component 2 is limitingly connected with the flow channel plate assembly 200, specifically, the stator component 2 further comprises a bracket 8, the bracket 8 is sleeved on the outer periphery of the sleeve 3 and is fixedly connected with the injection molding part 211. The bracket 8 comprises a base 81 and a buckle 82, the base 81 is fixedly connected or in an integral structure with the buckle 82, the base 81 comprises through holes, a plurality of through holes are arranged along the circumference of the base 81, the lower end of the injection molding part 211 is provided with a mounting column 212, the number and position of the mounting column 212 correspond to the through holes on the base 81, the mounting column 212 passes through the through holes on the base 81, and the mounting column 212 is deformed by extrusion, thereby fixing the bracket 8 and the stator component 2.

[0085] The valve body 30 is substantially hollow cylindrical in this embodiment, and includes a flange portion 310 at an end of the valve body 30, which protrudes outwardly relative to the outer wall of the valve body 30 in the radial direction of the valve body 30. The valve body 30 is formed by stamping, which is relatively simple compared to other processing forms. The stop portion 302 of the valve body 30 is located at the flange portion 310, and includes a first abutting portion 3021 and a second abutting portion 3022, which are arranged opposite to each other in the axial direction of the valve body 30. The stop portion 302 also includes a mounting groove 3023, which penetrates the first abutting portion 3021 and the second abutting portion 3022, and has an opening at the outer wall of the flange portion 310. The wall forming the mounting groove 3023 includes a first side wall portion 3024 and a second side wall portion 3025, which are arranged opposite to each other. A portion of the clamping portion 83 of the buckle member 82 abuts against the first abutting portion 3021, and a portion of the clamping portion 83 abuts against the second abutting portion 3022, thereby limiting the upward and downward movement of the stator component 2 in the axial direction. Specifically, the clamping portion 83 and the elastic portion 84 of the buckle member 82 are fixedly connected or integrated, and the elastic portion 84 is located at one side of the clamping portion 83. The clamping portion 83 is fixedly connected or integrated with the base 81, and is folded downwardly relative to the base 81 in the axial direction. The clamping portion 83 is substantially plate-shaped in this embodiment, similar to a rectangle or a square. The clamping portion 83 includes a clamping groove 833, which has an opening at the side wall of the clamping portion 83, i.e., the opening of the clamping groove 833 faces the first side wall portion 3024 or the second side wall portion 3025 forming the mounting groove 3023. The clamping groove 833 is located at one side of the clamping portion 83, and the elastic portion 84 is located at the other side of the clamping portion 83, i.e., the clamping groove 833 and the elastic portion 84 are arranged opposite to each other. The clamping groove 833 penetrates the inner and outer walls of the clamping portion 83 in the radial direction of the valve body 30. Part of the buckle member 82 is located in the mounting groove 3023 of the stop portion 302, i.e., part of the buckle member 82 passes through the mounting groove 3023 of the stop portion 302. Part of the stop portion 302 is located in the clamping groove 833 of the clamping portion 83, and the first abutting portion 3021 of the clamping portion 83 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. In this application, the mounting groove 3023 of the stop portion 302 and the clamping groove 833 of the clamping portion 83 limit the upward and downward positions in the axial direction of the valve body 30, which is relatively simple in structure, and the upward and downward positions abut against each other at the same time, thereby reducing the clamping from falling off due to vibration. Moreover, the stop portion 302 is machined on the flange portion 310 formed by stamping, which is relatively simple in manufacturing process and relatively low in manufacturing cost. The buckle member 82 also includes the elastic portion 84, which is located at one side of the clamping portion 83 and 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 part 84 comprises a bending part 841 and a resisting part 842. One end of the bending part 841 is fixedly connected with the bottom of the clamping part 83, and the other end of the bending part 841 is connected with the resisting part 842. The resisting part 842 abuts against the first side wall part 3024 or the second side wall part 3025. The bending part 841 of the elastic part 84 is arranged at an angle with the side wall part of the clamping part 83. Alternatively, at least part of the bending part 841 is arranged at a certain distance from the side wall part of the clamping part 83 along the circumference of the valve body 30. In this embodiment, at least part of the resisting part 842 is arranged parallel or similar to the wall part forming the mounting groove 3023. The abutting area of the resisting part 842 and the first side wall part 3024 or the second side wall part 3025 is relatively increased. The resisting part 842 is arranged at a certain distance from the side wall part of the clamping part 83, which is beneficial to the elastic deformation of the elastic part 84 under stress.

[0086] In some embodiments, the clamping part 83 comprises a base part 831 and a transition part 832. The base part 831 is in a substantially plate-like structure, similar to a rectangular or square structure. The transition part 832 is folded inward or outward relative to the base part 831 along the radial direction of the valve body 30. Alternatively, the transition part 832 is folded toward or away from the central axis of the valve body 30 relative to the base part 831. The mounting groove 3023 is located in the base part 831. The transition part 832 is connected with the elastic part 84. The elastic part 84 is folded upward relative to the transition part 832.

[0087] In combination with FIGS. 29 and 30, the distance between the first side wall part 3024 and the second side wall part 3025 is defined as L1, i.e., the width of the mounting groove 3023 is L1. The distance between the two side walls of the clamping part 83 is defined as L2. It should be noted that the distance between the two side walls of the clamping part 83 refers to the maximum distance between the two side walls. The distance between the bottom wall forming the clamping groove 833 and the outer wall of the resisting part 842 is defined as L3. It should be noted that the distance between the bottom wall forming the clamping groove 833 and the outer wall of the resisting part 842 refers to the state of the elastic part 84 of the clamping piece 82 in a free state, i.e., without deformation. Therefore, L1≥L2 and L3≥L1. In the clamped state, the depth D of the insertion of the stop part 302 into the clamping groove 833 is equal to the distance L between the side wall of the clamping part 83 and the outer wall of the resisting part 842.

[0088] The stop part 302 and the clamping piece 82 of this embodiment are arranged one by one and at least one is arranged. The stop part 302 is arranged on the folded edge of the valve body 30. It can be understood that the folded edge part 310 can be continuously arranged along the circumference of the valve body 30 or discontinuously distributed along the circumference of the valve body 30. Of course, in some other embodiments, the stop part 302 can be arranged on a protruding structure that protrudes outward relative to the outer wall of the valve body 30.

[0089] In the above embodiment, the valve body 30 is formed by stamping, but in other embodiments, the valve body 30 can also be formed by extrusion, casting or forging, and the clamping structure of the stator component 2 and the valve body 30 is equally applicable. The valve device 100 further comprises a valve seat 9 and a sleeve 3, the sleeve 3 being welded to the valve seat 9, at least part of the valve seat 9 being located in the inner cavity of the valve body 30, the valve seat 9 being threadedly connected or welded to the valve body 30.

[0090] The principles and implementation manners of the present application are described above by applying specific examples, and the above description of the embodiments is only used to help understand the method of the present application and its core idea. It should be pointed out that, for those skilled in the art, without departing from the principles of the present application, the present application can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the present application.

Claims

1. A fluid control module, characterized in that: The invention comprises a flow channel plate assembly (200) and a valve component (1), wherein the flow channel plate assembly (200) comprises a first plate body (22), a second plate body (23) and a third plate body (24), wherein the first plate body (22) and the third plate body (24) are respectively located on opposite sides of the second plate body (23), and the flow channel plate assembly (200) comprises a first flow channel (201) and a second flow channel (202), wherein the first flow channel (201) and the second flow channel (202) are located on opposite sides of the second plate body (23), forming a wall of the first flow channel (201). Part of the valve component (1) is located on the first plate body (22), and part of the wall forming the second flow channel (202) is located on the third plate body (24); the flow channel plate assembly (200) has a mounting cavity (203), part of the wall forming the mounting cavity (203) is located on the first plate body (22), and part of the wall forming the mounting cavity (203) is located on the second plate body (23), the mounting cavity (203) is communicated with the first flow channel (201), 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).

2. The fluid control module according to claim 1, characterized in that: The first plate body (22) includes a first mounting portion (223), 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), the second mounting hole (224) is connected to the second flow channel (202), and the opening of the mounting cavity (203) is the first mounting hole (224); the fluid control module also includes a valve body (30), at least part of which The valve body (30) is located in the installation cavity (203), and the valve body (30) is fixedly connected to the first installation portion (223); the valve body (30) has an accommodating cavity (301), a portion of the valve component (1) is located in the accommodating cavity (301), and the valve component (1) is fixedly connected or position-limitedly connected to the valve body (30); the first flow channel (201) is communicated with the accommodating cavity (301), and the second flow channel (202) can selectively communicate with the accommodating cavity (301).

3. The fluid control module according to claim 2, characterized in that: The lower end of the valve body (30) is located in the second mounting hole (232), the lower end of the valve body (30) is fixed and sealed to the second mounting portion (231), and the peripheral wall of the upper end of the valve body (30) is fixed and sealed to the first mounting portion (223); Alternatively, the lower end of the valve body (30) abuts against the upper end surface of the second mounting portion (231) and is fixedly and sealedly arranged, and the peripheral wall of the upper end of the valve body (30) is fixedly and sealedly arranged with the first mounting portion (223).

4. The fluid control module according to claim 2 or 3, characterized in that: The first mounting portion (223) protrudes relative to the end surface of the first plate body (22) toward the end surface away from the first plate body (22); the valve body (30) comprises a first fixing portion (32) and a main body (31); the first fixing portion (32) is close to the first mounting portion (223) relative to the main body (31); the first fixing portion (32) is welded and fixedly connected to the first mounting portion (223); the valve body (30) comprises a receiving groove (34); the receiving groove (34) is located on the outer wall of the first fixing portion (32); the opening of the receiving groove (34) faces toward the first mounting portion (223); the receiving groove (34) is used to receive solder; the end of the main body (31) abuts against the second mounting portion (231) and is fixedly sealed.

5. The fluid control module according to claim 4, characterized in that: The valve body (30) further includes a second fixing portion (33), and the outer diameter of the main body (31) is larger than the outer diameter of the second fixing portion (33); the second fixing portion (33) is located in the second mounting cavity (203), and the valve body (30) includes a step portion (36), and the step portion (36) is located at the connection between the main body (31) and the second fixing portion (33), and the step portion (36) is welded and fixed to the second mounting portion (231).

6. The fluid control module according to any one of claims 2 to 4, characterized in that: The first mounting portion (223) is formed by stamping, forming at least one of a partial wall of the first flow channel (201) and a partial wall of the second flow channel (202); The first plate (22) includes a first groove (221), the first groove (221) opens toward the second plate (23), the first mounting portion (223) is located at the bottom wall portion forming the first groove (221), the wall forming the mounting cavity (203) includes a wall partially forming the first groove (221), and the wall forming the first flow channel (201) includes a wall partially forming the first groove (221); the third plate (24) has a third groove (241), the opening of the third groove (241) faces the second plate (23), and the second mounting portion (231) is located at the second plate (23); Alternatively, the flow channel plate assembly (200) further includes a fourth plate body (25), the fourth plate body (25) being located between the second plate body (23) and the third plate body (24), the second plate body (23) having a second groove (233), the opening of the second groove (233) facing the first plate body (22), the second mounting portion (231) being located at the bottom wall portion forming the second groove (233), the wall forming the mounting cavity (203) including a wall partially forming the second groove (233), the wall forming the first flow channel (201) including a wall partially forming the second groove (233); the third plate body (24) having a third groove (241), the opening of the third groove (241) facing the fourth plate body (25), the third plate body (24) and the fourth plate body (25) cooperating to form at least a portion of the second flow channel (202).

7. The fluid control module according to claim 1, wherein: The fluid control module includes a connecting element (40), and the connecting element (40) is clamped and fixed to the valve component (1) and the flow channel plate assembly (200); the first plate body (22) includes a first mounting portion (223), the first mounting portion (223) includes a first mounting hole (224), and the opening of the mounting cavity (203) is the first mounting hole; the first mounting portion (223) includes a limiting portion (35), the valve component (1) has a supporting portion (91), and the supporting portion (91) is located on the outer periphery of the valve component (1); the connecting element (40) is a hollow structure, the connecting element (40) includes a notch portion (43), and the notch portion (43) has a notch, and the connecting element (40) can be elastically deformed; the connecting element (40) is clamped between the limiting portion (35) and the supporting portion (91).

8. The fluid control module according to claim 7, characterized in that: The first mounting portion (223) includes a stepped portion (37), the stepped portion (37) includes a first bottom portion (371) and a first side portion (372), the limiting portion (35) is located on the first side portion (372), the valve component (1) includes a valve seat (9), the supporting portion (91) is located on the valve seat (9), and the supporting portion (91) protrudes from the outer wall of the valve seat (9); the lower end portion of the supporting portion (91) abuts against the first bottom portion (371), the lower end portion of the connecting element (40) abuts against the upper end portion of the supporting portion (91), and / or the upper end portion of the connecting element (40) abuts against the limiting portion (35).

9. The fluid control module according to claim 7 or 8, characterized in that: The first mounting portion (223) is an integral structure, and the first mounting portion (223) is formed by stamping; the limiting portion (35) is a limiting hole (356), a portion of the connecting element (40) is located in the limiting hole (356), and a portion of the connecting element (40) is against the supporting portion (91); the connecting element (40) includes a clamping portion (44) and a crimping portion (45), and the clamping portion (44) and the crimping portion (45) are adjacently arranged and fixedly connected; at least a portion of the clamping portion (44) is located in the limiting hole (356), and the crimping portion (45) is against the supporting portion (91).

10. The fluid control module according to claim 7 or 8, characterized in that: The first mounting portion (223) is a split structure, the first mounting portion (223) includes a first sub-mounting portion (2231) and a second sub-mounting portion (2232), the first sub-mounting portion (2231) and the second sub-mounting portion (2232) are fixed or position-limited connected, the first sub-mounting portion (2231) includes an assembly hole (2233), the second sub-mounting portion (2232) is located in the assembly hole (2233), part of the mounting cavity (203) is located in the second sub-mounting portion (2232), the position-limiting portion (35) is located in the second sub-mounting portion (2232), and the second sub-mounting portion (2231) is fixed or position-limited connected. The part (2232) includes a stepped portion (37), the stepped portion (37) is formed on the inner wall of the second sub-mounting portion (2232), and the first sub-mounting portion (2231) is stamped; the connecting element (40) is an annular plate structure, the connecting element (40) includes a first end portion (41) and a second end portion (42), the first end portion (41) and the second end portion (42) are arranged opposite to each other along the thickness direction of the connecting element (40), the first end portion (41) is against the upper end portion of the supporting portion (91), and / or the second end portion (42) is against the limiting portion (35).

11. The fluid control module according to claim 10, wherein: The limiting portion is a limiting groove (351), and the walls forming the limiting groove (351) include a first wall portion (352), a second wall portion (353), and a third wall portion (354). The first wall portion (352) and the second wall portion (353) are arranged opposite to each other, and the third wall portion (354) is arranged opposite to the opening of the limiting groove (351). Part of the connecting element (40) is located in the limiting groove (351). Alternatively, the limiting portion (35) is a limiting protrusion (355), the limiting protrusion (355) protrudes outward along the inner wall of the second sub-mounting portion (2232), the second end portion (42) abuts against the lower end portion of the limiting protrusion (355), and / or the first end portion (41) abuts against the upper end portion of the support portion (91).

12. The fluid control module according to claim 1, wherein: The fluid control module further comprises a valve body (30), at least a portion of the valve body (30) is located in the installation cavity (203), the valve body (30) has a receiving cavity (301), a portion of the valve component (1) is located in the receiving cavity (301), the valve component (1) comprises a stator component (2), a bracket (8); the bracket (8) comprises a base (81) and a fastener (82), the base (81) and the fastener (82) are fixedly connected or integrally formed, and the base (81) and the fastener (82) are fixedly connected or integrally formed. The stator component (2) is fixedly connected; the valve body (30) includes a stopper (302), and the stopper (302) is located on the outer periphery of the valve body (30); the snap-fitting member (82) includes a clamping portion (83) and an elastic portion (84); along the axial direction of the stator component (2), the clamping portion (83) is clamped and fixed to one side of the stopper (302); along the circumferential direction of the stator component (2), the elastic portion (84) is in contact with the other side of the stopper (302).

13. The fluid control module according to claim 12, wherein: The stopper portion (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 portion (302) also includes a mounting groove (3023). Part of the clamping portion (83) is located in the mounting groove (3023). The wall forming the mounting groove (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 / or part of the clamping portion (83) abuts against the second abutting portion (3022).

14. The fluid control module according to claim 13, wherein: The clamping portion (83) is fixedly connected to the base (81), and part of the fastener (82) is located in the installation 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).

15. A method for manufacturing a fluid control module, characterized in that: Stamping to form a first plate body (22), a second plate body (23) and a third plate body (24); stacking the first plate body (22), the second plate body (23), and the third plate body (24) to form at least a portion of a flow channel plate assembly (200); Placing the valve body (30) into the installation cavity (203) of the flow channel plate assembly (200) and fixing it with a clamp to form at least part of the first assembly; The first component is placed in a tunnel furnace or a vacuum furnace for welding and fixing.

Images