Control valve

Abstract

A control valve comprises a first shell and a second shell, the first shell is provided with a first cavity, the second shell is provided with a second cavity, the first shell and the second shell are connected in a clamped mode, the control valve comprises a limiting protruding part and a first limiting groove, and one of the limiting protruding part and the first limiting groove is located in the second shell. The control valve comprises a clamping part and a second limiting groove, one of the clamping part and the second limiting groove is located in the second shell, the other one of the clamping part and the first limiting groove is located in the first shell, and the clamping part is connected with the first limiting groove in a clamped mode so as to limit circumferential rotation of the first shell relative to the second shell. The part, located on the first shell and the buckling part, of one of the buckling part and the second limiting groove is connected with the second limiting groove in a clamped mode so as to limit the first shell to move in the axial direction of the second shell, the first shell and the second shell can be disassembled conveniently through the connection mode, follow-up product maintenance is facilitated, product recycling is further facilitated, and the product quality is improved. And the waste of resources is reduced.

Description

Technical Field

[0001] This application relates to the field of thermal management technology, and in particular to a control valve for an automotive thermal management system. Background Technology

[0002] A control valve is a device used to control the flow rate, direction, and pressure of water. It regulates and distributes water flow by adjusting and opening. In related technologies, the control valve's body and secondary body are manufactured by laser welding after separate injection molding. Poor welding can lead to product failure. Furthermore, internal problems can hinder disassembly and repair, potentially resulting in product scrap and resource waste. Utility Model Content

[0003] The purpose of this application is to provide a control valve that helps solve the problem of resource waste caused by poor welding, and is also easy to disassemble and maintain.

[0004] To achieve the above objectives, this application provides the following technical solution:

[0005] A control valve, applied in the field of thermal management technology, is characterized by comprising a first housing and a second housing, the first housing having a first cavity and the second housing having a second cavity, the first housing and the second housing being snapped together; the control valve includes a limiting protrusion and a first limiting groove, one of the limiting protrusion and the first limiting groove being located in the second housing, and the other of the limiting protrusion and the first limiting groove being located in the first housing, the limiting protrusion being snapped together with the first limiting groove to restrict circumferential rotation of the first housing relative to the second housing; the control valve also includes a latching portion and a second limiting groove, one of the latching portion and the second limiting groove being located in the second housing, and the other of the latching portion and the second limiting groove being located in the first housing, the latching portion and the second limiting groove being snapped together to restrict axial rotation of the first housing relative to the second housing.

[0006] In one technical solution provided by this utility model, a control valve includes a first housing and a second housing, which are snapped together. The control valve includes a limiting protrusion and a first limiting groove, one of which is located in the second housing, and the other of which is located in the first housing. The limiting protrusion is snapped together with the first limiting groove to restrict the circumferential rotation of the first housing relative to the second housing. The control valve also includes a latch and a second limiting groove, one of which is located in the second housing, and the other of which is located in the first housing. A portion of the latch is snapped together with the second limiting groove to restrict the axial movement of the first housing relative to the second housing. The snap-fit ​​connection method is more convenient than welding for disassembling the first housing and the second housing, which facilitates subsequent product maintenance, further promotes product recycling, and reduces resource waste. Attached Figure Description

[0007] Figure 1 This is a three-dimensional structural schematic diagram of a first embodiment of a control valve provided in this application;

[0008] Figure 2 for Figure 1 The diagram shows a three-dimensional exploded structure of a control valve;

[0009] Figure 3 for Figure 2 A partial structural schematic diagram of a control valve is shown.

[0010] Figure 4 for Figure 1 The diagram shows a front view of a control valve.

[0011] Figure 5 for Figure 4 The diagram shows a cross-sectional view of a control valve along plane AA.

[0012] Figure 6 for Figure 5 A partial cross-sectional view of a control valve is shown.

[0013] Figure 7 for Figure 4 The diagram shows a top cross-sectional view of a control valve.

[0014] Figure 8 for Figure 7 A partial cross-sectional view of a control valve is shown.

[0015] Figure 9 for Figure 1 A three-dimensional structural schematic diagram of the second housing of a control valve is shown.

[0016] Figure 10 for Figure 9 A partial structural schematic diagram of the second shell shown;

[0017] Figure 11 for Figure 1 A three-dimensional structural schematic diagram of the first housing of a control valve is shown.

[0018] Figure 12 for Figure 11 A partial structural schematic diagram of the first housing shown.

[0019] Figure label:

[0020] 100. Control valve; 1. First housing; 11. First cavity; 12. Limiting protrusion; 121. First limiting surface; 122. Second limiting surface; 13. Snap-fit ​​part; 131. Main body; 132. Snap-fit ​​part; 132a. Guide slope; 132b. Support part; 14. Second end face; 15. Notch; 2. Second housing; 21. Second cavity; 22. First limiting groove; 221. First surface; 222. Second surface; 23. Second limiting groove; 231. Third surface; 232. Fourth surface; 24. First end face; 25. Connecting port; 251. Inlet; 252. First outlet; 253. Second outlet; 26. Conducting part; 261. Conducting cavity; 27. Sealing part; 3. Electrical control component; 4. Valve core; 5. First sealing ring; 6. Second sealing ring. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of the utility model will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

[0022] In this application, the control valve is applied to the air conditioning or heat pump system of new energy vehicles. It is applicable to refrigerant valves in vehicle thermal management systems using traditional refrigerants and environmentally friendly refrigerants. In vehicle thermal management systems, control valves are often used as components to control the flow rate, direction, and pressure of water.

[0023] In this application, as Figures 1-12As shown, a control valve 100 includes a first housing 1, a second housing 2, an electronic control component 3, and a valve core 4. The first housing 1 has a first cavity 11, and the electronic control component 3 is installed in the first cavity 11. The second housing 2 has a second cavity 21. A portion of the valve core 4 is located in the second cavity 21, and another portion is located in the first cavity 11. The valve core 4 is connected to the electronic control component 3 by transmission, specifically by gear meshing or the like. The electronic control component 3 can control the valve core 4 to rotate to connect the pipeline. The second housing 2 has a connecting port 25 near the second cavity 21. The second housing 2 includes a conducting part 26 and a blocking part 27. The conducting part 26 has a conducting cavity 261, which can connect at least two connecting ports 25. The blocking part 27... The valve core 4 is axially arranged with the connecting port 25 closed. The conducting part 26 and the sealing part 27 are also arranged along the axial direction of the valve core 4. In this application, the connecting port 25 includes an inlet 251, a first outlet 252, and a second outlet 253. In one operating mode of the control valve 100, when the inlet 251 is connected to the first outlet 252, the second outlet 253 is closed, allowing liquid to enter the control valve 100 from the inlet 251 and then flow out from the first outlet 252. Alternatively, in another operating mode, the inlet 251 is fully connected to both the first outlet 252 and the second outlet 253, allowing liquid to enter the control valve 100 from the inlet 251 and then flow out from both the first outlet 252 and the second outlet 253. These multiple operating modes facilitate application in diverse environments. The control valve 100 also includes a first sealing ring 5 and a second sealing ring 6. The second sealing ring 6 is located away from the electronic control component 3 relative to the first sealing ring 5. The first housing 1 is sealed to the valve core 4 via the first sealing ring 5, and the second housing 2 is sealed to the second housing 2 via the second sealing ring 6. The sealing ring ensures that the electrical control component 3 is protected from the influence of liquid during operation, which is beneficial to the stability of the control valve 100.

[0024] In this application, the first housing 1 and the second housing 2 are snapped together. The control valve 100 includes a limiting protrusion 12 and a first limiting groove 22. One of the limiting protrusion 12 and the first limiting groove 22 is located in the second housing 2, and the other of the limiting protrusion 12 and the first limiting groove 22 is located in the first housing 1. The limiting protrusion 12 and the first limiting groove 22 are snapped together to restrict the circumferential rotation of the first housing 1 relative to the second housing 2. The control valve 100 includes a latching part 13 and a second limiting groove 23. One of the latching part 13 and the second limiting groove 23 is located in the second housing 2, and the other of the latching part 13 and the second limiting groove 23 is located in the first housing 1. A portion of the latching part 13 and the second limiting groove 23 are snapped together to restrict the axial rotation of the first housing 1 relative to the second housing 2. This connection method simplifies assembly and facilitates the disassembly of the housing and the second housing, which is beneficial for subsequent product maintenance, further promoting the recycling of the product and reducing resource waste.

[0025] refer to Figures 1-12 As shown, in one embodiment of the control valve 100 provided in this application, the first housing 1 and the second housing 2 are designed as separate units. The first housing 1 and the second housing 2 are snapped together. A portion of the second housing 2 is installed in the first cavity 11. The outer peripheral wall of the second housing 2 is provided with a first limiting groove 22 and a second limiting groove 23. The inner peripheral wall of the first housing 1 is provided with a limiting protrusion 12 and a snap-fit ​​portion 13. The limiting protrusion 12 snaps into the first limiting groove 22 to restrict the circumferential rotation of the first housing 1 relative to the second housing 2. A portion of the snap-fit ​​portion 13 snaps into the second limiting groove 23 to restrict the axial movement of the first housing 1 relative to the second housing 2. This snap-fit ​​connection structure simplifies the assembly process of the control valve 100, avoids welding quality problems caused by traditional welding assembly, and further reduces resource waste. At the same time, the cooperative design of the portion of the snap-fit ​​portion 13 and the second limiting groove 23, the limiting protrusion 12 and the first limiting groove 22 makes the connection between the second housing 2 and the first housing 1 more secure and easier to disassemble, facilitating later maintenance and extending the service life of the product.

[0026] like Figure 11 and Figure 12 As shown, the first housing 1 includes a second end face 14. As shown along the axial direction of the first housing 1, the second end face 14 is disposed along the first housing 1 toward the communication port 25. The control valve 100 includes a limiting protrusion 12 and a latching part 13. The limiting protrusion 12 and the latching part 13 are located on the first housing 1. This integrated structure increases the strength of the limiting protrusion 12 and the latching part 13. At the same time, the integrated structure is also conducive to ensuring the consistency of the height position of each limiting protrusion 12 and the consistency of the height position of the latching part 13, which further facilitates the latching cooperation between the second housing 2 and the first housing 1.

[0027] The limiting protrusion 12 is away from the second end face 14 relative to the latching part 13. The limiting protrusion 12 is distributed circumferentially along the inner peripheral wall of the first housing 1. The limiting protrusion 12 and the first limiting groove 22 are mutually matched. In order to ensure that the second housing 2 and the first housing 1 are stably matched, the number of limiting protrusions 12 is at least two. The number of first limiting grooves 22 is greater than the number of limiting parts 12. In this embodiment, the number of limiting protrusions 12 is two. Of course, in other embodiments, the number of limiting protrusions 12 can be set to multiple. The limiting protrusions 12 can also be arranged circumferentially along the inner peripheral wall of the first housing 1. The second housing 2 includes multiple first limiting grooves 22, which are serrated and recessed along the axial direction of the second housing 2 from the second end face 14. The first limiting grooves 22 open towards the outer peripheral wall of the second housing 2. In this embodiment, the multiple first limiting grooves 22 are arranged circumferentially around the first housing 1, allowing the limiting protrusion 12 to engage with the second housing 2 at multiple angles. The cross-sectional shape of the limiting protrusion 12 is similar to a triangle along the radial direction of the first housing 1, and rectangular along the axial direction of the first housing 1. In other embodiments, the cross-sectional shape of the limiting protrusion 12 along the axial direction of the first housing 1 can also be trapezoidal, square, etc., as long as it matches the first limiting groove 22 of the second housing 2. The engaging engagement between the limiting protrusion 12 and the first limiting groove 22 restricts the circumferential rotation of the first housing 1 relative to the second housing 2.

[0028] like Figures 7-10 As shown, the limiting protrusion 12 includes a first limiting surface 121 and a second limiting surface 122. The first limiting surface 121 and the second limiting surface 122 are arranged along the circumference of the first housing 1. In this embodiment, the first limiting surface 121 and the second limiting surface 122 are connected and arranged at an acute angle. The first limiting groove 22 includes a first surface 221 and a second surface 222. The first surface 221 and the second surface 222 are arranged opposite to each other. It is assumed that there is a central surface between the first surface 221 and the second surface 222, and the horizontal projections of the first surface 221 and the second surface 222 on the central surface partially overlap. The first surface 221 and the second surface 222 are set at an acute angle. The first limiting surface 121 is in contact with the first surface 221, and / or the second limiting surface 122 is in contact with the second surface 222. The locking of the limiting protrusion 12 and the first limiting groove 22 strengthens the limiting between the first housing 1 and the second housing 2, further effectively preventing the second housing 2 from shaking relative to the first housing 1 in the working state, and also restricting the circumferential rotation of the first housing 1 relative to the second housing 2.

[0029] In this embodiment, as Figures 6-12As shown, the latching part 13 is elastically deformable, and there are multiple latching parts 13. The latching parts 13 are evenly distributed along the circumferential direction of the peripheral wall of the first housing 1. Here, the evenly distributed distribution includes approximately evenly spaced arrangement. The latching part 13 includes a main body part 131 and a latching part 132. The main body part 131 has notches 15 at both ends along the circumferential direction of the first housing 1 and at the outer peripheral wall of the first housing 1. The notches 15 extend from the second end face 14 toward the limiting protrusion 12 and penetrate the outer peripheral wall of the first housing 1 in the radial direction. The latching part 132 extends from the main body part 131 in the radial direction of the first housing 1 and latches with the second limiting groove 23. The notch 15 facilitates the assembly of the second housing 2 with the first housing 1. At the same time, when the second housing 2 deforms by pressing the buckle 13, the mounting point where the first housing 1 and the second housing 2 meet will be subjected to a certain shrinkage force. The design of the notch 15 provides a certain space for the deformation of the material and further facilitates the installation of the buckle 13, that is, it facilitates the assembly between the first housing 1 and the second housing 2.

[0030] like Figures 10-12As shown, the snap-fit ​​portion 131 includes a guide slope portion 132a and a support portion 132b. The support portion 132b is set at an acute angle to the guide slope portion 132a. The support portion 132b is set radially along the first housing 1. The guide slope portion 132a is inclined from the main body portion 131 in a direction away from the second housing 2. The support portion 132b partially abuts against the second limiting groove 23. The guide slope portion 132a is inclined from the inner peripheral wall of the first housing 1 in a direction away from the second housing 2. The first housing 1 includes a second limiting groove 23, which is arranged circumferentially along the outer peripheral wall of the second housing 2. The first limiting groove 22 is located away from the first end face 24 relative to the second limiting groove 23. The second limiting groove 23 is recessed radially from the outer peripheral wall of the second housing 2. The second limiting groove 23 includes a third surface 231 and a fourth surface 232, which are arranged opposite each other along the axial direction of the second housing 2. The fourth surface 232 is located away from the first end face 24 relative to the third surface 231. The engaging part 132 engages with the second limiting groove 23 at multiple angles, which allows for multi-angle assembly between the first housing 1 and the second housing 2. The engaging part 131 is embedded in the second limiting groove 23, which can restrict the axial movement of the first housing 1 relative to the second housing 2. During the assembly of the first housing 1 and the second housing 2, the outer peripheral wall of the second housing 2 can abut against the guide slope 132a, guiding the second housing 2 to assemble with the first housing 1. Then, the snap-fit ​​part 131 is deformed by compression. After the snap-fit ​​part 131 is embedded in the second limiting groove 23, it returns to its original shape and snaps into the second limiting groove 23. In order to maintain the stability of the snap-fit ​​connection between the second housing 2 and the first housing 1, the number of snap-fit ​​parts 13 is at least three to prevent warping and unstable installation. In this embodiment, the number of snap-fit ​​parts 13 is six. Of course, in other embodiments, the number of snap-fit ​​parts 13 can be designed according to specific circumstances. At the same time, the setting of multiple snap-fit ​​parts 13 also helps to provide multiple guide slopes 132a to guide the assembly of the second housing 2 during the assembly of the first housing 1 and the second housing 2, making it easier for the first housing 1 and the second housing 2 to be concentrically set and preventing the occurrence of skew.

[0031] The snap-fit ​​portion 131 has a rectangular cross-sectional shape along the axial direction of the first housing 1, which increases the contact area between the snap-fit ​​portion 131 and the second limiting groove 23, further facilitating the stable installation between the second housing 2 and the first housing 1. Of course, in other embodiments, the cross-sectional shape of the snap-fit ​​portion 131 along the axial direction of the first housing 1 can also be trapezoidal or square, as long as it is compatible with the second limiting groove 23 of the second housing 2. At the same time, the length of the snap-fit ​​portion 131 along the radial direction of the first housing 1 is less than the length of the second limiting groove 23 along the radial direction of the second housing, thus providing space for the snap-fit ​​portion 1 to recover from elastic deformation. The first housing 1 and the second housing 2 are connected by a snap-fit, which makes assembly simpler and disassembly more convenient, thereby facilitating subsequent product maintenance and repair, further promoting the recycling of the product, and reducing resource waste.

[0032] In the second embodiment of the control valve 100 provided in this application, the difference from the first embodiment is that the limiting protrusion 12 and the second limiting groove 23 are located on the first housing 1. The first housing 1 has a first cavity 11, and a portion of the second housing 2 is installed in the first cavity 11. The limiting protrusion 12 and the second limiting groove 23 are arranged along the inner peripheral wall of the first housing 1. The limiting protrusion 12 is away from the second end face 14 of the first housing 1 relative to the second limiting groove 23. The second limiting groove 23 is recessed from the inner peripheral wall of the first housing 1 radially in the direction opposite to its axis. The first limiting groove 22 and the latching part 13 are located on the second housing 2. The first limiting groove 22 and the latching part 13 are arranged along the outer peripheral wall of the second housing 2. The latching part 13 is away from the first end face 24 relative to the first limiting groove 22. The snap-fit ​​portion 132 of the second housing 2 protrudes from the outer peripheral wall of the second housing 2 in a direction opposite to its radial direction. The limiting protrusion 12 engages with the first limiting groove 22 to limit the circumferential rotation of the first housing 1 relative to the second housing 2. The snap-fit ​​portion 13 engages with the second limiting groove 23 to limit the axial rotation of the first housing 1 relative to the second housing 2. The snap-fit ​​portion 13 and the first limiting groove 22 are located on the second housing 2. The snap-fit ​​portion 13 and the first limiting groove 22 are arranged along the outer peripheral wall of the second housing 2. The snap-fit ​​portion of the snap-fit ​​portion 13 protrudes from the outer peripheral wall of the second housing 2 in a direction opposite to its radial direction. The snap-fit ​​structure between the second housing 2 and the first housing 1 facilitates the disassembly of the second housing 2 during maintenance, thereby facilitating the inspection and replacement of parts, and further contributing to the long-term use of the product and the conservation of resources.

[0033] In the third embodiment of the control valve 100 provided in this application, the difference from other embodiments is that the first housing 1 and the second housing 2 are snapped together, and a portion of the first housing 1 is installed in the second cavity 21. The outer peripheral wall of the first housing 1 is provided with a first limiting groove 22 and a second limiting groove 23. The first limiting groove 22 and the second limiting groove 23 are recessed from the outer peripheral wall of the first housing 1 along its radial direction toward its axial direction. The second limiting groove 23 is 22 away from the first limiting groove and is 22 away from the second end face 14. The first limiting groove 22 is serrated and is recessed from the first end face 24 along the axial direction of the first housing 1. The first limiting groove 22 faces the first end face 24. The outer peripheral wall of the housing 1 is provided with an opening. The first limiting groove 22 is sequentially connected along the circumference of the first housing 1. The inner peripheral wall of the second housing 2 is provided with a limiting protrusion 12 and a snap-fit ​​part 13. The limiting protrusion 12 protrudes from the inner peripheral wall of the second housing 2 in a radial direction toward its axis. The snap-fit ​​part 132 of the snap-fit ​​part 13 protrudes from its main body 131 in a radial direction toward its axis. The limiting protrusion 12 snaps with the first limiting groove 22 to restrict the circumferential rotation of the second housing 2 relative to the first housing 1. The snap-fit ​​part 132 of the snap-fit ​​part 13 snaps with the second limiting groove 23 to restrict the axial movement of the second housing 2 relative to the first housing 1. This snap-fit ​​connection structure simplifies the assembly process of the control valve, avoids welding quality problems caused by traditional welding assembly, and further reduces resource waste. At the same time, the cooperative design of the snap-fit ​​part 13, the second limiting groove 23, the limiting protrusion part 12 and the first limiting groove 22 makes the connection between the second housing 2 and the first housing 1 more secure and easy to disassemble, which facilitates later maintenance and extends the service life of the product.

[0034] In the fourth embodiment of the control valve 100 provided in this application, the difference from the third embodiment is that the outer peripheral wall of the first housing 1 is provided with a first limiting groove 22 and a snap-fit ​​part 13. The first limiting groove 22 is recessed from the outer peripheral wall of the first housing 1 along its radial direction toward its axis. The snap-fit ​​part 132 of the snap-fit ​​part 13 protrudes from the main body of the first housing 1 along its radial direction in the opposite direction to its axis. The first limiting groove 22 is away from the second end face 14 relative to the snap-fit ​​part 13. The inner peripheral wall of the second housing 2 is provided with a limiting protrusion 12 and a limiting groove 23. The limiting protrusion 12 protrudes from the inner peripheral wall of the second housing 2 in a radial direction toward its axis. The limiting groove 23 is recessed from the outer peripheral wall of the second housing 2 in a radial direction opposite to its axis. The limiting protrusion 12 is away from the first end face 24 relative to the second limiting groove 23. The limiting protrusion 12 of the second housing 2 is engaged with the first limiting groove 23 of the first housing 1. The snap-fit ​​of the first housing 1's snap-fit ​​of the second housing 2 with the second limiting groove 23 can also realize the snap-fit ​​between the second housing 2 and the first housing 1.

[0035] The above examples illustrate the principles and implementation methods of this utility model. The descriptions of these embodiments are merely for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. A control valve, characterized in that, The system includes a first housing (1) and a second housing (2), with the first housing (1) engaging with the second housing (2). The control valve includes a limiting protrusion (12) and a first limiting groove (22), one of which is located in the second housing (2), and the other of which is located in the first housing (1). The limiting protrusion (12) engages with the first limiting groove (22) to limit the valve. The first housing (1) rotates circumferentially relative to the second housing (2). The control valve includes a latching part (13) and a second limiting groove (23). One of the latching part (13) and the second limiting groove (23) is located in the second housing (2), and the other of the latching part (13) and the second limiting groove (23) is located in the first housing (1). The latching part (13) and the second limiting groove (23) engage to restrict the axial movement of the first housing (1) relative to the second housing (2).

2. The control valve according to claim 1, characterized in that, The first limiting groove (22) and the second limiting groove (23) are located in the second housing (2), the limiting protrusion (12) and the snap-fit ​​part (13) are located in the first housing (1), the limiting protrusion (12) is engaged with the first limiting groove (22), the snap-fit ​​part (13) is engaged with the second limiting groove (23), the first housing (1) has a first cavity (11), and a part of the second housing (2) is installed in the first cavity (11).

3. The control valve according to claim 2, characterized in that, The second housing (2) includes a first end face (24) located in the first cavity (11). The first limiting groove (22) is recessed from the first end face (24) along the axial direction of the second housing (2). The first limiting groove (22) is opened towards the outer peripheral wall of the second housing (2). The limiting protrusion (12) protrudes from the inner peripheral wall of the first housing (1) along the radial direction of the first housing (1). The limiting protrusion (12) engages with the first limiting groove (22).

4. The control valve according to claim 3, characterized in that, The number of the limiting protrusions (12) is at least two, the number of the first limiting grooves (22) is greater than the number of the limiting protrusions (12), and the multiple first limiting grooves (22) are arranged along the circumference of the second housing (2). The limiting protrusions (12) can engage with the second housing (2) at multiple angles.

5. The control valve according to claim 4, characterized in that, The limiting protrusion (12) includes a first limiting surface (121) and a second limiting surface (122). The first limiting surface (121) and the second limiting surface (122) are arranged along the circumference of the first housing (1). The first limiting surface (121) and the second limiting surface (122) are arranged at an acute angle. The first limiting groove (22) is serrated. The first limiting groove (22) includes a first surface (221) and a second surface (222). The first surface (221) is in contact with the first limiting surface (121), and / or the second surface (222) is in contact with the second limiting surface (122).

6. The control valve according to any one of claims 1-5, characterized in that, The first housing (1) includes a second end face (14), which is disposed facing a portion of the second housing (2). The limiting protrusion (12) is away from the second end face (14) relative to the latching part (13). There are multiple latching parts (13). The latching parts (13) are elastic and can deform to engage with the second limiting groove (23).

7. The control valve according to claim 6, characterized in that, The latching part (13) includes a main body part (131) and a latching part (132). The main body part (131) has notches (15) at both ends of the first housing (1) along the circumferential direction and the outer peripheral wall of the first housing (1). The notches (15) extend from the second end face (14) toward the limiting protrusion (12). The notches (15) penetrate the outer peripheral wall of the first housing (1) along the radial direction. The latching part (132) extends from the main body part (131) along the radial direction of the first housing (1). The latching part (132) can latch with the second limiting groove (23).

8. The control valve according to claim 7, characterized in that, The snap-fit ​​portion (132) includes a guide slope portion (132a) and a support portion (132b). The support portion (132b) is set at an acute angle to the guide slope portion (132a). The support portion (132b) is set radially along the first housing (1). The guide slope portion (132a) is inclined from the main body portion (131) in a direction away from the second housing (2). The support portion (132b) can abut against a portion of the second limiting groove (23).

9. The control valve according to claim 8, characterized in that, The first limiting groove (22) is away from the first end face (24) relative to the second limiting groove (23). The second limiting groove (23) is recessed from the outer peripheral wall of the second housing (2) along the radial direction of the second housing (2). The second limiting groove (23) includes a third surface (231) and a fourth surface (232). The third surface (231) and the fourth surface (232) are arranged opposite to each other along the axial direction of the second housing (2). The fourth surface (232) is away from the first end face (24) relative to the third surface (231). The snap-fit ​​part (132) can snap-fit ​​with the second limiting groove (23) at multiple angles.

10. The control valve according to any one of claims 1-5 and 7-9, characterized in that, The control valve includes an electronic control component (3), a valve core (4), a first sealing ring (5), and a second sealing ring (6). The electronic control component (3) is located in the first cavity (11) of the first housing (1). The second housing (2) has a second cavity (21). A portion of the valve core (4) is located in the second cavity (21), and another portion is located in the first cavity (11). The valve core (4) is connected to the electronic control component (3) in a driving connection. The electronic control component (3) can control the valve core (4) to move to connect the pipeline. The second sealing ring (6) is located away from the electronic control component (3) relative to the first sealing ring (5). The first housing (1) is sealed to the valve core (4) through the first sealing ring (5), and the second housing (2) is sealed to the second housing (2) through the second sealing ring (6).

11. The control valve according to claim 6, characterized in that, The control valve includes an electronic control component (3), a valve core (4), a first sealing ring (5), and a second sealing ring (6). The electronic control component (3) is located in the first cavity (11) of the first housing (1). The second housing (2) has a second cavity (21). A portion of the valve core (4) is located in the second cavity (21), and another portion is located in the first cavity (11). The valve core (4) is connected to the electronic control component (3) in a driving connection. The electronic control component (3) can control the valve core (4) to move to connect the pipeline. The second sealing ring (6) is located away from the electronic control component (3) relative to the first sealing ring (5). The first housing (1) is sealed to the valve core (4) through the first sealing ring (5), and the second housing (2) is sealed to the second housing (2) through the second sealing ring (6).

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