Multi-way water valve

Abstract

The utility model provides a multi-way water valve which comprises a valve body with an opening in the lower portion, a valve cover connected to the opening end of the valve body and a valve element assembly rotationally assembled in the valve body, a plurality of flow channel openings distributed in the circumferential direction are formed in the valve cover, and a plurality of flow channel cavities are formed in the valve element assembly. The upper end of the valve element assembly penetrates out of the top wall of the valve body and is connected with an external actuator. The valve body is made of a metal material, a positioning step is arranged at the opening end of the valve body, the valve cover is assembled on the positioning step, and at least part of the opening end of the valve body is folded and riveted on the valve cover; a sealing gasket is arranged between the valve deck and the valve element assembly, and the radial outer end of the sealing gasket extends to the positioning step. The multi-way water valve is simple in structure, few in parts, low in cost, convenient to install and long in service life.

Description

Technical Field

[0001] The utility model relates to the technical field of water valves, in particular to a multi-way water valve. Background Art

[0002] New energy vehicles, such as pure electric vehicles and hybrid electric vehicles, are typically equipped with thermal management systems to control battery temperature to prevent safety accidents caused by abnormally high temperatures during operation. The medium directly involved in thermal management in the thermal management system is coolant, and the use of water valves enables switching between various functional modes of the vehicle to meet different vehicle operating conditions. Multi-way water valves are used in thermal management systems, including air conditioning cooling channels, battery cooling channels, and electric drive system cooling channels. By rotating the valve core assembly through an actuator, it can control the flow of coolant, such as on and off, reversing, and flow direction.

[0003] Patent CN220523315U discloses an integrated water valve, temperature management system and electric vehicle, including a valve body shell with an upper opening, a valve core assembly rotatably built into the shell and a valve cover fitted at the upper open end of the shell. The drive shaft of the valve core assembly passes through the valve cover and is connected to an external actuator. In this structure, a sealing gasket is provided between the valve core assembly and the bottom of the shell, a seal is also required at the connection between the valve cover and the top of the shell, and a seal is also required between the drive shaft and the valve cover mounting hole, that is, at least three independent seals are required, and the corresponding sealing positions require the processing of a seal positioning structure; on the other hand, the connection between the valve cover and the shell requires screws, threaded connections or the addition of other snap-on buckle structures, resulting in a large number of parts in the entire water valve structure and increased costs. Utility Model Content

[0004] In order to overcome at least one of the above defects in the prior art, the utility model provides a multi-way water valve with a simple structure, few parts, low cost, easy installation and long service life.

[0005] The utility model provides a multi-way water valve: it comprises a valve body with an opening at the bottom, a valve cover connected to the open end of the valve body and a valve core assembly rotatably mounted in the valve body, the valve cover is provided with a plurality of flow openings distributed along the circumferential direction, the valve core assembly is provided with a plurality of flow channel chambers, the upper end of the valve core assembly passes through the top wall of the valve body and is connected to an external actuator; the valve body is made of metal, and the open end of the valve body is provided with a positioning step, the valve cover is mounted on the positioning step, and the open end of the valve body is at least partially folded and riveted to the valve cover; a sealing gasket is provided between the valve cover and the valve core assembly, and the radial outer end of the sealing gasket extends to the positioning step.

[0006] Compared with the prior art, the multi-way water valve of the utility model has the following advantages:

[0007] First, the flow channel is opened on the valve cover, and a positioning step is provided at the open end of the valve body. Therefore, when the valve cover is fitted on the positioning step at the open end of the valve body, the seal at the connection between the valve cover and the housing and the seal between the valve core assembly and the flow channel opening component are located on the same horizontal plane. For this reason, the present invention can simultaneously achieve the sealing of two mating surfaces by only providing a sealing gasket. Compared with the two independent sealing elements in the prior art, one sealing element can be omitted, thereby simplifying the valve structure and reducing costs.

[0008] Secondly, the valve body structure is made of metal material, and the connection and fixation with the valve cover can be achieved by folding and riveting a part of the valve body's own structure at the connection between the valve body opening end and the valve cover, eliminating the need for connecting screws and other structures, further simplifying the valve component connection structure, and facilitating installation. Moreover, the metal valve body structure has high strength, is not easy to deform, and has a longer service life.

[0009] As an improvement, a horizontal positioning plate extending horizontally outward is connected to the outer peripheral wall of the bottom of the valve body, and a vertical positioning plate extending vertically downward is connected to the radial outer end of the horizontal plate. The positioning step is formed between the horizontal positioning plate and the vertical positioning plate, and at least part of the lower end of the vertical positioning plate is folded and riveted to the valve cover.

[0010] Preferably, the horizontal positioning plate, the vertical positioning plate and the valve body are an integrated structure.

[0011] Further improved, a vertically extending mounting sleeve is integrally formed in the middle of the top plate of the valve body, and a drive shaft connected to an external actuator is provided at the upper end of the valve core assembly. The drive shaft rotatably fits in the mounting sleeve, and a sealing ring is provided between the outer wall of the drive shaft and the inner wall of the mounting sleeve.

[0012] As a further improvement, a concave positioning slot is provided at the center of the upper end surface of the valve cover, and a convex positioning pin is provided on the lower end surface of the valve core assembly, and the positioning pin is rotatably engaged in the positioning slot.

[0013] As a further improvement, the lower end of the vertical positioning plate is formed with a plurality of positioning ear plates distributed along its circumference, and the lower end surface of the valve cover is provided with a plurality of positioning slots distributed along the circumference, and the plurality of positioning ear plates are folded and riveted into the corresponding positioning slots.

[0014] As a further improvement, the sealing gasket is adhesively fixed to the upper end surface of the valve cover.

[0015] As a further improvement, the radial outer end of the upper end face of the valve cover is provided with a plurality of circumferentially distributed limiting protrusions, and the sealing gasket is provided with a plurality of avoidance notches that cooperate with each of the limiting protrusions, and the upper surfaces of the plurality of limiting protrusions are slightly lower than the upper surface of the sealing gasket.

[0016] As a further improvement, the vertical positioning plate is integrally formed with a plurality of mounting ear plates distributed along the circumferential direction, and each of the mounting ear plates is provided with a connecting through hole.

[0017] As a further improvement, an embedding groove is provided at the bottom of the valve cover, and a flange sealing member is installed in the embedding groove.

[0018] Other improved features and advantages of the present invention will be described in the following detailed description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purposes and other advantages of the present invention can be achieved and obtained by the structures specifically pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional structural diagram of the multi-way water valve of the utility model;

[0020] Figure 2 for Figure 1 Another angle diagram of the multi-way water valve;

[0021] Figure 3 This is a diagram showing the connection structure between the valve cover and the sealing gasket in the present invention;

[0022] Figure 4 It is a vertical cross-sectional view of the multi-way water valve of the utility model;

[0023] Figure 5 for Figure 4 The X in the figure is enlarged;

[0024] Figure 6 for Figure 4 Enlarge the structure diagram at Y in .

[0025] Description of reference numerals:

[0026] 1. Valve body; 2. Valve cover; 3. Valve core assembly; 4. Flow channel; 5. Flow channel chamber; 6. Positioning step; 7. Sealing gasket; 8. Horizontal positioning plate; 9. Vertical positioning plate; 10. Mounting sleeve; 11. Drive shaft; 12. Sealing ring; 13. Positioning slot; 14. Positioning column; 15. Positioning ear plate; 16. Positioning slot; 17. Limiting block; 18. Mounting ear plate; 19. Connecting through hole; 20. Flange seal; 21. Positioning pressure ring. DETAILED DESCRIPTION

[0027] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of the present application and are not intended to limit the scope of protection of the embodiments of the present application. Those skilled in the art may adjust them as needed to suit specific application scenarios.

[0028] In the description of the embodiments of this application, it should be noted that, unless otherwise specified or limited, the terms "fixed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of this application based on the specific circumstances.

[0029] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] See also Figures 1 to 6 As shown, an embodiment of the present application discloses a multi-way water valve, comprising a valve body 1 with an opening at the bottom, a valve cover 2 connected to the lower open end of the valve body 1, and a valve core assembly 3 rotatably mounted in the valve body 1. In addition, a plurality of flow openings 4 distributed along the circumference are provided on the valve cover 2, and a plurality of mutually independent flow chambers 5 are provided on the valve core assembly 3. The upper end of the valve core assembly 3 passes through the top wall of the valve body 1 and is connected to an external actuator. The valve core assembly 3 is driven to rotate by the actuator, thereby driving the various flow chambers 5 on the valve core assembly 3 to be paired with different flow openings 4 on the valve cover 2, thereby controlling the on-off, reversing and liquid flow direction of the flow channel of the system coolant.

[0031] In this embodiment, the valve body 1 is made of metal, and an annular positioning step 6 is provided at the open end of the valve body 1. The valve cover 2 is mounted on the positioning step 6, and the open end of the valve body 1 is at least partially folded over and riveted to the valve cover 2 to achieve the connection and fixation between the valve cover 2 and the valve body 1. Compared with the screw connection structure in the prior art, it is simpler, has fewer parts, and is low in cost. Compared with the snap connection structure in the prior art, it has higher strength.

[0032] In addition, in this structure, a sealing gasket 7 is provided between the valve cover 2 and the valve core assembly 3, and the radial outer end of the sealing gasket 7 extends to the positioning step 6, that is, the sealing gasket 7 realizes the sealing between the lower end face of the valve core assembly 3 and the upper surface of the valve cover 2, and also realizes the sealing between the upper end face of the valve cover 2 and the mounting surface of the positioning step 6.

[0033] More specifically, in the above structure, see the attached Figure 6A horizontal positioning plate 8 extending horizontally outward is connected to the outer peripheral wall at the bottom of the valve body 1. A vertical positioning plate 9 extending vertically downward is connected to the radially outer end of the horizontal plate. A positioning step 6 is formed between the horizontal positioning plate 8 and the vertical positioning plate 9, and at least a portion of the lower end of the vertical positioning plate 9 is folded over and riveted to the valve cover 2. In this embodiment, preferably, the horizontal positioning plate 8, the vertical positioning plate 9, and the valve body 1 are an integrated structure, that is, the side wall of the open end of the valve body 1 structure is directly formed by a process of pulling and bending to form the above-mentioned horizontal positioning plate 8 and vertical positioning plate 9, which simplifies the process of forming the positioning step 6 and reduces costs.

[0034] In this embodiment, see the attached Figure 2 and 3 A plurality of circumferentially distributed positioning lugs 15 are formed on the lower bottom surface of the vertical positioning plate 9, and a plurality of positioning slots 16 are provided at the radial outer end of the lower end surface of the valve cover 2. When the valve cover 2 is fitted onto the positioning step 6 of the valve body 1, the plurality of positioning lugs 15 are folded so that they are bent and riveted into the corresponding positioning slots 16 on the valve cover 2, thereby realizing a quick connection and fixation between the valve cover 2 and the valve body 1.

[0035] In some other embodiments, an annular positioning groove can also be set at the radial outer end of the lower end surface of the valve cover 2, and the lower end surface of the vertical positioning plate 9 at the lower end of the valve body 1 is bent inward as a whole and fitted in the positioning groove, thereby realizing the connection between the valve cover 2 and the valve body 1.

[0036] In addition, see the attached Figure 4 In this embodiment, a vertically extending mounting sleeve 10 is integrally formed in the middle of the top plate of the valve body 1, and a drive shaft 11 connected to an external actuator is provided at the upper end of the valve core assembly 3. The drive shaft 11 is rotatably fitted in the mounting sleeve 10, and a sealing ring 12 is provided between the outer wall of the drive shaft 11 and the inner wall of the mounting sleeve 10; the sealing ring 12 here is preferably a star-shaped sealing ring 12.

[0037] See attached Figure 4 A concave positioning slot 13 is provided at the center position of the upper end surface of the valve cover 2, and a convex positioning pin 14 is provided on the lower end surface of the valve core assembly 3, and the positioning pin 14 can be rotatably engaged in the positioning slot 13. This structure can position the rotation of the valve core assembly 3, and prevent the valve core assembly 3 from being offset during the rotation process, resulting in inaccurate alignment between the flow channel opening 4 and the flow channel chamber 5.

[0038] In this embodiment, see the attached Figure 3The sealing gasket 7 is directly bonded and fixed to the upper end surface of the valve cover 2, thereby ensuring the stability of the sealing gasket 7 during assembly and preventing it from separating from the valve cover 2. Furthermore, a plurality of circumferentially distributed limiting bumps 17 are provided at the radially outer end of the upper end surface of the valve cover 2. The sealing gasket 7 is provided with a plurality of avoidance notches that cooperate with each limiting bump 17. The upper surfaces of the limiting bumps 17 are slightly lower than the upper surface of the sealing gasket 7. The limiting bumps 17 here primarily serve to limit the riveting height between the valve cover 2 and the valve body 1, and also ensure stable sealing performance at the contact surface after riveting.

[0039] For details, see the attached Figure 4 and 5 In this structure, an annular positioning pressure ring 21 is formed on the top wall of the inner cavity of the valve body 1. After the valve structure is assembled, the positioning pressure ring 21 abuts against the upper end surface of the valve core assembly 3 located in the inner cavity of the valve body 1, which not only realizes the axial positioning of the valve core assembly 3, but also reduces the contact area between the upper end surface of the valve core assembly 3 and the top wall of the inner cavity of the valve body 1, thereby reducing the friction resistance of the valve core assembly 3 when it rotates.

[0040] In addition, see the attached Figure 1 and 2 In the above structure, vertical positioning plate 9 is integrally formed with multiple circumferentially distributed mounting lugs 18. Each mounting lug 18 is provided with a connecting hole 19 for connecting the water valve to its corresponding mounting base. The bottom of valve cover 2 is provided with an embedded groove, into which a flange seal 20 is mounted. This embedded structure ensures the stability of flange seal 20 and prevents it from falling off, ensuring the sealing performance of the entire water valve after connection.

[0041] In the description of this application, the description with reference to the terms "this embodiment", "some embodiments", etc. means that the specific features, mechanisms, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are mutually inconsistent.

[0042] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A multi-way water valve, characterized in that: The invention comprises a valve body (1) with a lower opening, a valve cover (2) connected to the open end of the valve body (1), and a valve core assembly (3) rotatably mounted in the valve body (1), the valve cover (2) being provided with a plurality of flow passage openings (4) distributed along the circumferential direction, the valve core assembly (3) being provided with a plurality of flow passage chambers (5), the upper end of the valve core assembly (3) passing through the top wall of the valve body (1) and being connected to an external actuator; the valve body (1) being made of metal material, and the open end of the valve body (1) being provided with a positioning step (6), the valve cover (2) being mounted on the positioning step (6), and the open end of the valve body (1) being at least partially folded and riveted to the valve cover (2); a sealing gasket (7) being provided between the valve cover (2) and the valve core assembly (3), and the radial outer end of the sealing gasket (7) extending to the positioning step (6).

2. The multi-way water valve according to claim 1, characterized in that: A horizontal positioning plate (8) extending horizontally outward is connected to the outer peripheral wall of the bottom of the valve body (1), and a vertical positioning plate (9) extending vertically downward is connected to the radial outer end of the horizontal positioning plate (8), and the positioning step (6) is formed between the horizontal positioning plate (8) and the vertical positioning plate (9), and at least a portion of the lower end of the vertical positioning plate (9) is folded and riveted to the valve cover (2).

3. The multi-way water valve according to claim 2, characterized in that: The horizontal positioning plate (8), the vertical positioning plate (9) and the valve body (1) are an integrated structure.

4. The multi-way water valve according to claim 2, characterized in that: A vertically extending mounting sleeve (10) is integrally formed in the middle of the top plate of the valve body (1), and a drive shaft (11) connected to an external actuator is provided at the upper end of the valve core assembly (3). The drive shaft (11) is rotatably fitted in the mounting sleeve (10), and a sealing ring (12) is provided between the outer wall of the drive shaft (11) and the inner wall of the mounting sleeve (10).

5. The multi-way water valve according to claim 4, characterized in that: A concave positioning slot (13) is provided at the center of the upper end surface of the valve cover (2), and a convex positioning pin (14) is provided on the lower end surface of the valve core assembly (3), and the positioning pin (14) is rotatably engaged in the positioning slot (13).

6. The multi-way water valve according to any one of claims 2 to 5, characterized in that: The lower end of the vertical positioning plate (9) is formed with a plurality of positioning ear plates (15) distributed along its circumference, and the lower end surface of the valve cover (2) is provided with a plurality of positioning slots (16) distributed along the circumference, and the plurality of positioning ear plates (15) are folded and riveted into the corresponding positioning slots (16).

7. The multi-way water valve according to claim 1, characterized in that: The sealing gasket (7) is adhesively fixed to the upper end surface of the valve cover (2).

8. The multi-way water valve according to claim 1 or 7, characterized in that: The radial outer end of the upper end surface of the valve cover (2) is provided with a plurality of circumferentially distributed limiting protrusions (17), and the sealing gasket (7) is provided with a plurality of avoidance notches that match the limiting protrusions (17), and the upper surfaces of the plurality of limiting protrusions (17) are slightly lower than the upper surface of the sealing gasket (7).

9. The multi-way water valve according to claim 6, characterized in that: The vertical positioning plate (9) is also integrally formed with a plurality of mounting ear plates (18) distributed along the circumferential direction, and each mounting ear plate (18) is provided with a connecting through hole (19).

10. The multi-way water valve according to claim 6, characterized in that: The bottom of the valve cover (2) is provided with an embedding groove, in which a flange sealing member (20) is installed.

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