Fluid control assembly and method of manufacture

Abstract

The invention discloses a fluid control assembly and a manufacturing method, the fluid control assembly comprises a first shell, a valve core component and a second shell, the first shell is fixedly connected with the second shell, the fluid control assembly is provided with a first flow channel and a valve cavity, the second shell comprises a first flow channel part, and at least part of a wall forming the first flow channel is located on the first flow channel part; the wall forming the valve cavity is located in the first shell and the second shell, the valve cavity communicates with the first flow channel, and at least part of the valve element component is located in the valve cavity. The second shell comprises a valve port part, the valve port part and the first flow channel part are of an integrated structure, the valve port part is provided with a valve port, the valve element component and the valve port part can move relatively to open the valve port in a one-way mode, the valve port part is located in the second shell, the valve port part and the flow channel part of the second shell are of an integrated structure, and the valve element component and the valve port part can move relatively to open the valve port in a one-way mode. Compared with a traditional mode that the valve port is formed in the valve body, the valve port is formed in the shell, and the structure of the fluid control assembly is simplified.

Description

Technical Field

[0001] The present application relates to the field of fluid control, and in particular to a fluid control component and a manufacturing method thereof. Background Art

[0002] The fluid control assembly includes a housing, a valve body and a valve core component. The valve body has a valve port. The valve body and the housing need to be installed together, and the structure is complex. Therefore, simplification of the structure of the fluid control assembly is a technical problem. Summary of the invention

[0003] The purpose of the present application is to provide a fluid control component that is conducive to simplifying the structure.

[0004] To achieve the above purpose, one embodiment of the present application adopts the following technical solution:

[0005] A fluid control assembly, comprising a first housing, a valve core component and a second housing, wherein the first housing is fixedly connected to the second housing, the fluid control assembly has a first flow channel and a valve cavity, the second housing comprises a first flow channel portion, a wall forming the first flow channel is at least partially located in the first flow channel portion, a wall forming the valve cavity is located in the first housing and the second housing, the valve cavity is communicated with the first flow channel, and the valve core component is at least partially located in the valve cavity;

[0006] The second housing includes a valve port portion, the valve port portion is integrally structured with the first flow channel portion, the valve port portion has a valve port, and the valve core component and the valve port portion can move relative to each other to open the valve port in one direction.

[0007] A method for manufacturing a fluid control component comprises the following steps:

[0008] Prepare a first shell and a second shell, wherein "preparing the second shell" includes forming a valve port portion in the second shell;

[0009] Assembling the valve core component: fitting and connecting one end of the valve core component to one of the first housing and the second housing, and then fitting and connecting the other of the first housing and the second housing to the other end of the valve core component;

[0010] The first shell and the second shell are fixedly connected.

[0011] In a fluid control component and manufacturing method of one embodiment of the present application, the valve mouth portion is located in the second shell, the valve mouth portion and the flow channel portion of the second shell are integrated into a structure, the valve core component and the valve mouth portion can move relative to each other to open the valve port in one direction. Compared with the traditional method of setting the valve port in the valve body, the present application sets the valve port in the shell, thereby simplifying the structure of the fluid control component. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a main structural schematic diagram of one embodiment of a fluid control component;

[0013] Figure 2 It is a schematic diagram of the structure of each component of the fluid control assembly;

[0014] Figure 3 is a schematic diagram of an integrated structure of a fluid control assembly guide and a second housing in one embodiment of the present invention;

[0015] Figure 4 is a schematic diagram of an integrated structure of a fluid control component guide and a first split shell in one embodiment of the present invention;

[0016] Figure 5 It is a structural schematic diagram of one embodiment of the present invention in which the guide portion of the fluid control component is located in the second housing;

[0017] Figure 6 yes Figure 5 Schematic diagram of the AA direction structure;

[0018] Figure 7 It is a structural schematic diagram of a valve core component of a fluid control assembly in one embodiment of the present invention;

[0019] Figure 8 yes Figure 6 Schematic diagram of the BB direction structure;

[0020] Fig. 9 It is a schematic diagram of the valve opening state of the fluid control component in one embodiment of the present invention;

[0021] Figure numerals: 1, first shell; 11, positioning portion; 111, convex portion; 10, positioning hole; 101, first wall; 2, second shell; 201, first flow channel; 2011, first flow channel portion; 2012, second flow channel portion; 202, second flow channel; 3, guide member; 31, guide portion; 310, guide groove; 4, valve mouth portion; 40, valve mouth; 41, first wall surface; 5, valve core component; 50, valve cavity; 51, valve core; 52, valve stem; 53, sealing groove; 54, sealing member; 55, guide wing; 56, elastic component; 211, mating surface; 6, third shell. DETAILED DESCRIPTION

[0022] The features and exemplary embodiments of various aspects of the present invention will be described below. In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. In this article, relational terms such as "first" and "second" are only used to distinguish one component with the same name from another, and do not necessarily require or imply any such actual relationship or order between these components.

[0023] Reference Figure 1-Figure 9 One embodiment of the present application provides a fluid control component with the functions of forward conduction and reverse cutoff, which is applied to the automotive thermal management system and can realize the flow direction control function of the fluid medium of the thermal management system in conjunction with other components. The specific introduction is as follows.

[0024] Reference Figure 1 and Figure 2The embodiment of the present application discloses a fluid control component, including a first shell 1, a valve core component 5 and a second shell 2. The first shell 1 is fixedly connected to the second shell 2, preferably by welding, or by other fixed connection methods such as screw connection and riveting. The fluid control component has a first flow channel 201 and a valve cavity 50. The wall forming the first flow channel 201 includes the first shell 1 and the second shell 2. Specifically, the second shell 2 includes a first flow channel portion 2011, and the wall forming the first flow channel 201 is at least partially located in the first flow channel portion 2011. The first shell 1 includes a second flow channel portion 2012, and the wall forming the first flow channel 201 is at least partially located in the second flow channel portion 2012. The wall forming the valve cavity 50 is located in the first shell 1 and the second shell 2. Specifically, the wall forming the valve cavity 50 is at least partially located in the first flow channel portion 2011, and the wall forming the valve cavity 50 is at least partially located in the second flow channel portion 2012. The valve cavity 50 is connected to the first flow channel 201, and the valve core component 5 is at least partially located in the valve cavity 50. In addition, the first flow channel 201 extends in a direction perpendicular to the axis of the valve core component 5, or the first flow channel 201 extends in the extension direction of the housing (the housing includes the first housing 1 and the second housing 2). Specifically, at least one of the first housing 1 and the second housing 2 has a groove, and the first housing 1 and the second housing 2 are fixedly connected to enclose the groove to form at least part of the first flow channel 201. Preferably, the first housing 1 and the second housing 2 are both provided with a groove; the second housing 2 includes a valve port portion 4, and the valve port portion 4 has a valve port 4 0, the valve mouth portion 4 and the first flow channel portion 2011 are an integral structure, the valve core component 5 and the valve mouth portion 4 can move relative to each other to open the valve port 40 in one direction, and the valve core component 5 can abut the valve mouth portion 4 to close the valve port 40. Specifically, in the valve open state, the valve port 40 connects the first flow channel 201 and the lower space of the valve mouth portion 4, and the fluid in the lower space of the valve mouth portion 4 enters the first flow channel 201 through the valve port 40. In the valve closed state, the valve port 40 is closed by the valve core component 5, and the fluid in the first flow channel 201 cannot pass through the valve port 40. Compared with the traditional fluid control components, the fluid control component of this embodiment has a simplified valve body structure, and the valve mouth part 4 traditionally located in the valve body is arranged in the second shell 2. The valve mouth part 4 and the second shell 2 are integrally structured, and the valve mouth part 4 is preferably formed together during the molding process of the first flow channel part 2011 of the second shell 2. In addition, in the traditional solution, the valve mouth part 4 is located in the valve body, and an internal leakage seal is required between the valve body and the shell. In this embodiment, there is no need to set an additional sealing structure, thereby simplifying the structure of the fluid control component.

[0025] refer to Figure 2 and Figure 3The first shell 1 of the fluid control component of this embodiment has a positioning portion 11, and the positioning portion 11 is an integral structure with the second flow channel portion 2012. The positioning portion 11 includes a positioning hole 10, and the valve core component 5 is at least partially located in the positioning hole 10. Specifically, the opening of the positioning hole 10 is set toward the valve port 40. The positioning portion 11 serves to install and position the valve core component 5 to ensure that the function of the valve core component 5 between the first shell 1 and the second shell 2 is normally realized, that is, to ensure that when the valve core component 5 is in the valve closing state, the valve core component 5 can abut against the valve port portion 4 to close the valve port 40, and when in the valve opening state, the valve core component 5 can move relative to the valve port 40 to open the valve port 40. In the traditional scheme, the positioning portion 11 is located on the valve cover, and the valve cover is fixedly connected to the first shell 1 to install the valve core component 5. In the present embodiment, the positioning portion 11 is located on the first shell 1, which is equivalent to an integral structure of the valve cover and the first shell 1. Preferably, the positioning portion 11 is molded together when the second flow channel portion 2012 of the first shell 1 is molded, thereby saving the screws and sealing gaskets required for the fixed connection between the valve cover and the first shell 1, or, no additional welding process is required between the valve cover and the first shell 1, thereby simplifying the structure of the fluid control component. In addition, there is no need to mold an insertion port for the valve core component 5 on the first shell 1. When molding the first shell 1, the slider core pulling used for molding the insertion port can be cancelled, leaving more space for the mold water channel design, thereby making the arrangement of other components on the first shell 1 and the valve core component 5 more compact.

[0026] Furthermore, in order to make the fluid control assembly compact, it is preferred that a portion of the positioning portion 11 is located in the valve cavity 50, and the other portion protrudes away from the valve core component 5 relative to the first housing 1, that is, Figure 2 and Figure 3 Along the axial direction of the valve stem 52, the first shell 1 includes a first wall 101, and the first wall 101 is located at the second flow channel portion 2012. The first wall 101 is located on the side of the first shell 1 away from the second shell 2. The positioning portion 11 includes a protrusion 111, and the protrusion 111 protrudes relative to the first wall 101 in a direction away from the second shell 2. The wall forming the positioning hole 10 is at least partially located at the protrusion 111. This is conducive to reducing the dimensions of the first flow channel portion 2011 and the second flow channel portion 2012 in the axial direction of the valve core component 5, so that the fluid control component structure is compact.

[0027] refer to Figure 3 and Figure 4The fluid control component includes a guide member 3, which is connected to the first shell 1 or the second shell 2. Specifically, in some embodiments, the guide member 3 is fixedly connected, limitedly connected or an integral structure with the first shell 1. In other embodiments, the guide member 3 is fixedly connected, limitedly connected or an integral structure with the second shell 2. Considering the processing cost, it is preferably an integral structure of the guide member 3 and the first shell 1 or the second shell 2. The guide member 3 includes a guide portion 31, and the valve core component 5 is slidably matched with the guide portion 31. The valve core component 5 approaches or moves away from the valve port 40 along the guide portion 31. The provision of the guide portion 31 is beneficial to improving the stability of the movement of the valve core component 5.

[0028] The fluid control assembly of this embodiment is an L-type one-way valve assembly. In this embodiment, the axial direction of the valve port 40 tends to be perpendicular to the extension of the first shell 1 and the second shell 2, that is, the axial direction of the valve port 40 tends to be perpendicular to the extension direction of the wall forming the first flow channel 201. In this embodiment, the fluid can push the valve core component 5 abutting against the valve port 4 from the bottom of the valve core 51, and the fluid enters the first flow channel 201 through the valve port 40. In the first flow channel 201, the fluid flows to the side of the valve core component 5. The flow path of the fluid is roughly L-shaped. Of course, it is not limited to the L-type, and it can also be a linear one-way valve assembly.

[0029] refer to Figure 3 and Figure 4 In order to further simplify the structure of the fluid control assembly, in the present embodiment, one end of the guide member 3 is fixedly connected or limitedly connected to the first housing 1. Specifically, the guide member 3 is fixedly connected to the first housing 1 by welding, threaded connection, screw connection, screw connection, screw-on connection or limitedly connected by clamping, and the other end of the guide member 3 is abutted against the second housing 2. The purpose of the abutment here is to increase the stability of the guide member 3, so that the guide portion 31 located on the guide member 3 is more stable, which is conducive to improving the stability of the movement of the valve core component 5. Of course, in some cases, the stroke of the valve core component 5 is short, or the guide portion 31 is stable in structure, such as the guide portion 31 is In the case of a hollow cylinder, the other end of the third shell 6 may not need to abut the second shell 2. In addition, one end of the guide member 3 may be fixedly connected or limit-connected to the second shell 2, and the other end of the guide member 3 may abut the first shell 1. In other embodiments, in order to further simplify, the guide member 3 is integrally structured with the first shell 1, and the end of the guide member 3 away from the first shell 1 abuts the second shell 2. Of course, as in the above situation, the third shell 6 may not abut the second shell 2, or the guide member 3 is integrally structured with the second shell 2, and the end of the guide member 3 away from the second shell 2 abuts or does not abut the first shell 1.

[0030] In this embodiment, see Figure 3 and Figure 4The guide member 3 is a plurality of columnar components, and the guide portion 31 is located on a side wall of the columnar component close to the valve core component 5. Of course, the guide member 3 is not limited to the above-mentioned columnar components, but also includes components of other shapes, such as a cylindrical component. The cylindrical component has an inner cavity, and the guide portion 31 is located on the wall forming the inner cavity. The side wall of the cylindrical component is provided with an outlet, and the outlet connects the first flow channel 201 and the inner cavity.

[0031] In the above embodiments, reference Figure 3 and Figure 4 The guide portion 31 can be designed depending on the guide member 3, that is, the guide portion is located on the guide member 3, and the guide member 3 is integrally structured or fixedly connected or position-limitedly connected with one of the first shell 1 and the second shell 2, which is equivalent to the guide portion 31 also being integrally structured or fixedly connected or position-limitedly connected with one of the first shell 1 and the second shell 2. Of course, the guide portion can also be designed independently of the guide member 3, refer to Figure 5 and Figure 6 The fluid control assembly removes the guide member 3 structure and directly sets the guide portion, and the guide portion 31 is also an integral structure with one of the first shell 1 and the second shell 2, as described below.

[0032] refer to Figure 5 and Figure 6 In order to further simplify the structure of the fluid control component, in another embodiment, the fluid control assembly includes a guide portion 31, the guide portion 31 is located in at least one of the first housing 1 and the second housing 2, and the valve core component 5 is slidably matched with the guide portion 31. Specifically, the guide portion 31 can be located in the first housing 1 or in the second housing 2, or the guide portion 31 includes a first guide portion 31 and a second guide portion 31, the first guide portion 31 is located in the first housing 1, and the second guide portion 31 is located in the second housing 2. The first housing 1 and the second housing 2 are fixedly connected to connect the first guide portion 31 and the second guide portion 31. In this embodiment, the guide member 3 is completely removed, and the guide portion 31 is set at Shell, taking the setting of the guide part 31 on the second shell 2 as an example, the guide part 31 can be additionally set on the second shell 2, or the second shell 2 can be partially designed as an arc shell, and the outer peripheral wall of the valve core component 5 cooperates with the arc shell to realize the guiding function. In this embodiment, it is preferred to set the guide part 31 in one of the first shell 1 and the second shell 2, and it is preferred to move the joint surface 211 of the first shell 1 and the second shell 2 toward or away from the valve mouth 4, so that the joint surface 211 is away from the guide part 31, that is, the valve core component 5 does not pass through the joint surface 211 during its stroke, which can prevent the presence of steps or welding overflow at the joint surface 211 from affecting the stability of the valve core component 5.

[0033] In the above embodiment, in order to improve the movement stability of the valve core component 5, reference Figure 5 and Figure 6The guide portion 31 is preferably designed as a plurality of guide grooves 310, the groove wall of the guide groove 310 is integrally structured with the first flow channel portion 2011 or the second flow channel portion 2012, and the groove wall of the guide groove 310 is preferably formed together when the first flow channel portion 2011 or the second flow channel portion 2012 is formed, the wall of the guide groove 310 extends along the axial direction of the valve core component 5, the guide grooves 310 are arranged at intervals along the circumference of the valve core component 5, and the valve core component 5 has guide wings 55 corresponding to the guide grooves 310, and the guide wings 55 are slidably matched with the wall of the guide groove 310 , wherein the number of guide grooves 310 and guide wings 55 is preferably three, and they are arranged at equal intervals along the circumference of the valve core component 5. Of course, the number can also be one, two, four or more. The cooperation between the guide grooves 310 and the guide wings 55 can not only play a guiding role, but also prevent rotation between the valve core component 5 and the guide portion 31, so that the movement of the valve core component 5 is more stable. Of course, the guide grooves 310 can also be set on the outer periphery of the valve core component 5, and guide ribs can be set on the third shell 6 or the second shell 2, and the wall of the guide groove 310 can be slidably matched with the guide rib.

[0034] refer to Figure 3 In this embodiment, on the one hand, the structure of the valve mouth portion 4 is simplified, and on the other hand, the one-way flow function of the fluid is realized. The wall designed to form the valve mouth 40 includes a first wall surface 41. The first wall surface 41 is located in the second shell 2. The first wall surface 41 expands along the axial direction of the valve core component 5. The diameter close to the end of the first shell 1 is larger than the diameter away from the end of the first shell 1, that is, the first wall surface 41 is roughly in the shape of a bell mouth. The valve mouth portion 4 is designed in this shape, and the difficulty of processing and molding is lower.

[0035] refer to Figure 3 , Figure 7 and Figure 8In this embodiment, the valve core component 5 includes a valve core 51 and a sealing member 54. The sealing member 54 is located at the outer periphery of the valve core 51. In the valve closing state, the sealing member 54 abuts against the first wall surface 41 to close the valve port 40. Specifically, the valve core component 5 of this embodiment includes a valve core 51, a valve stem 52, an elastic member 56 and a sealing member 54. The valve core 51 and the valve port 4 can move relative to each other. The valve core 51 can open or close the valve port 40 in one direction to achieve the functions of one-way conduction and reverse cutoff. The valve core 51 and the valve stem 52 are fixedly connected or have an integral structure. The first housing 1 has a positioning hole 10 opening toward the valve core component 5. The valve stem 52 is at least partially located in the positioning hole 10. The valve stem 52 and the positioning hole The valve stem 52 can slide back and forth along the wall of the positioning hole 10, one end of the elastic component 56 abuts against the valve core 51, and the other end abuts against the first shell 1. The elastic component 56 is preferably located at the periphery of the valve stem 52, the valve core 51 has a circumferential sealing groove 53, and the sealing member 54 is at least partially located in the sealing groove 53. Specifically, the sealing member 54 protrudes toward the valve mouth portion 4 relative to the notch of the sealing groove 53. The sealing member 54 is preferably an elastic sealing ring, and the specific material can be rubber. The elastic component 56 can be a spring, which is spirally arranged around the valve stem 52. Of course, it can also be other elastic components. The elastic component 56 provides a force to abut the valve core 51 and the sealing member 54 against the valve mouth portion 4.

[0036] refer to Fig. 9 In this embodiment, the fluid control assembly further includes a third shell 6, one side of the second shell 2 is fixedly connected to the first shell 1, and the other side of the second shell 2 is fixedly connected to the third shell 6. The fixed connection method is preferably hot plate welding, or other welding methods. The fluid control assembly has a second flow channel 202, and the wall forming the second flow channel 202 includes the second shell 2 and the third shell 6. The molding method of the second flow channel 202 is similar to that of the first flow channel 201, which will not be repeated here. In the valve opening state, the valve port 40 of the valve port part 4 connects the first flow channel 201 and the second flow channel 202. In the valve closing state, the valve core component 5 abuts against the valve port part 4 to separate the first flow channel 201 and the second flow channel 202. The first shell 1, the second shell 2 and the third shell 6 are preferably flow channel plates. The fluid control assembly of this embodiment is used to conduct the fluid in the second flow channel 202 into the first flow channel 201 and cut off the fluid in the first flow channel 201 from entering the second flow channel 202.

[0037] In addition, an embodiment of the present application also provides a method for manufacturing a fluid control component, comprising the following steps: preparing a first shell 1 and a second shell 2, wherein "preparing the second shell 2" includes forming a valve mouth portion 4 in the second shell 2; assembling a valve core component 5: matching and connecting one end of the valve core component 5 with one of the first shell 1 and the second shell 2, and then matching and connecting the other of the first shell 1 and the second shell 2 with the other end of the valve core component 5; fixing the first shell 1 and the second shell 2 to match the installation of the valve core component 5, and the valve core component 5 can move relative to the valve mouth portion 4 to open and close the valve mouth 40 in one direction.

[0038] In the above steps, "assembling the valve core component 5" includes: firstly abutting one end of the valve core component 5 against the valve mouth portion 4 of the second housing 2, and then matching and connecting the positioning portion 11 of the first housing 1 with the other end of the valve core component 5; or, firstly matching and connecting the positioning portion 11 of the first housing 1 with one end of the valve core component 5, and then abutting the other end of the valve core component 5 against the valve mouth portion 4 of the second housing 2. Specifically, the first housing 1 includes a positioning portion 11, and the positioning portion 11 has a positioning hole 10 opening toward the valve core component 5, and the valve core component 5 includes an elastic component 56, a valve core 51 of an integral structure, and a valve stem 52. The specific steps of placing the valve core component 5 are: placing the elastic component 56 on the periphery of the valve stem 52, inserting the valve stem 52 into the positioning hole 10 located in the first housing 1, one end of the elastic component 56 abuts against the first housing 1, and the other end abuts against the valve core 51, and aligning the axis of the valve core 51 with the axis of the valve mouth 40. In some embodiments, the fluid control assembly further includes a guide portion 31, and during the placement of the valve core component 5, the valve core component 5 is slidably matched with the guide portion 31. Subsequently, the valve core 51 is abutted against the valve port portion 4 by fixing the first housing 1 and the second housing 2, preferably by hot plate welding, and the valve core component 5 is installed between the first housing 1 and the second housing 2.

[0039] The manufacturing method of the fluid control component of the present embodiment uses the valve core component 5 as an insert, and completes the assembly of the valve core component 5 when the first shell 1 and the second shell 2 are fixedly connected. Compared with the traditional manufacturing method: after the first shell 1 and the second shell 2 are fixedly connected, the valve core component 5 is inserted from the insertion port reserved on the first shell 1, and the valve core component 5 and the first shell 1 are fixed again, the present embodiment only needs one fixed connection, which simplifies the manufacturing steps of the fluid control component.

[0040] It should be noted that the above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention, such as the directional definitions of "front", "back", "left", "right", "up" and "down". Although the present invention has been described in this specification with reference to the above embodiments, it should be understood by those skilled in the art that the present invention can still be modified, combined or replaced by equivalents, and all technical solutions and improvements thereof that do not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A fluid control assembly, characterized in that: The invention comprises a first housing (1), a valve core component (5) and a second housing (2), wherein the first housing (1) is fixedly connected to the second housing (2), the fluid control component comprises a first flow channel (201) and a valve cavity (50), the second housing (2) comprises a first flow channel portion (2011), a wall forming the first flow channel (201) is at least partially located in the first flow channel portion (2011), a wall forming the valve cavity (50) is located in the first housing (1) and the second housing (2), the valve cavity (50) is communicated with the first flow channel (201), and the valve core component (5) is at least partially located in the valve cavity (50); The second shell (2) includes a valve mouth portion (4), the valve mouth portion (4) and the first flow channel portion (2011) are integrally structured, the valve mouth portion (4) has a valve port (40), and the valve core component (5) and the valve mouth portion (4) are capable of relative movement to open the valve port (40) in one direction.

2. The fluid control assembly according to claim 1, characterized in that: The first shell (1) has a positioning portion (11), the first shell (1) includes a second flow channel portion (2012), the wall portion forming the first flow channel (201) is located in the second flow channel portion (2012), the positioning portion (11) and the second flow channel portion (2012) are an integral structure, the positioning portion (11) includes a positioning hole (10), the valve core component (5) includes a valve stem (52), at least a portion of the valve stem (52) is located in the positioning hole (10), the valve stem (52) is slidably connected to the positioning portion (11), and the opening of the positioning hole (10) faces the valve port (40).

3. The fluid control assembly according to claim 2, characterized in that: Along the axial direction of the valve stem (52), the first shell (1) includes a first wall (101), the first wall (101) is located on a side of the first shell (1) relatively away from the second shell (2), the positioning portion (11) includes a convex portion (111), the convex portion (111) protrudes relative to the first wall (101) in a direction away from the second shell (2), and the wall forming the positioning hole (10) is at least partially located on the convex portion (111).

4. The fluid control assembly according to any one of claims 1 to 3, characterized in that: The fluid control assembly comprises a guide portion (31), the guide portion (31) is slidably matched with the valve core component (5), and one of the first shell (1) and the second shell (2) is integrally structured with the guide portion (31) or fixedly connected or limit-connected.

5. The fluid control assembly according to claim 4, characterized in that: The guide portion (31) includes a plurality of guide grooves (310), the walls forming the guide grooves (310) extending along the axial direction of the valve core component (5), the guide grooves (310) being arranged at intervals along the circumference of the valve core component (5), the valve core component (5) having guide wings (55) corresponding to the guide grooves (310), the guide wings (55) being slidably matched with the walls of the guide grooves (310).

6. The fluid control assembly according to claim 4, characterized in that: The first shell (1) comprises a second flow channel portion (2012), a wall portion forming the first flow channel (201) is located in the second flow channel portion (2012), and the guide portion (31) is an integral structure with the first flow channel portion (2011) or the second flow channel portion (2012).

7. The fluid control assembly according to any one of claims 1 to 6, characterized in that: The valve core component (5) comprises a valve core (51), a valve stem (52) and an elastic component (56); the valve core (51) and the valve stem (52) are fixedly connected or are an integral structure; the first shell (1) has a positioning portion (11); the positioning portion (11) has a positioning hole (10) opening toward the valve core component (5); the valve stem (52) is at least partially located in the positioning hole (10); the elastic component (56) is located on the outer periphery of the valve stem (52); one end of the elastic component (56) abuts against the first shell (1); and the other end of the elastic component (56) abuts against the valve core (51).

8. The fluid control assembly according to any one of claims 1 to 7, characterized in that: The fluid control component also includes a third shell (6), one side of the second shell (2) is fixedly connected to the first shell (1), and the other side of the second shell (2) is fixedly connected to the third shell (6). The fluid control component has a second flow channel (202), and the wall forming the second flow channel (202) includes the second shell (2) and the third shell (6). In the valve open state, the valve port (40) of the valve port portion (4) connects the valve cavity (50) and the second flow channel (202).

9. A method for manufacturing a fluid control component, characterized in that: The steps include: Preparing a first shell (1) and a second shell (2), wherein "preparing the second shell (2)" includes forming a valve port portion (4) in the second shell (2); Assembling the valve core component (5): fittingly connecting one end of the valve core component (5) to one of the first housing (1) and the second housing (2), and then fittingly connecting the other of the first housing (1) and the second housing (2) to the other end of the valve core component (5); The first shell (1) and the second shell (2) are fixedly connected.

10. The method for manufacturing a fluid control component according to claim 9, characterized in that: "Assembling the valve core component (5)" includes: abutting one end of the valve core component (5) against the valve mouth portion (4) of the second shell (2), and then matching and connecting the positioning portion (11) of the first shell (1) with the other end of the valve core component (5); or, matching and connecting the positioning portion (11) of the first shell (1) with one end of the valve core component (5), and then abutting the other end of the valve core component (5) against the valve mouth portion (4) of the second shell (2).

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