Novel sealing structure for water valve of new energy automobile

Abstract

The utility model belongs to the technical field of fluid valve sealing, and particularly relates to a novel sealing structure for a water valve of a new energy automobile, which comprises a shaft sealing element and a pipe orifice sealing element with a through hole, the shaft sealing element is arranged between a valve core rotating shaft and a flange, and the pipe orifice sealing element is in a curved surface shape and is arranged between a water valve body and a valve core. The radian of the curved surface is matched with the radian of the side wall of the valve element, the pipe opening sealing piece comprises a first sealing layer and a second sealing layer fixedly connected with the first sealing layer, the first sealing layer abuts against the valve body, and the second sealing layer abuts against the valve element.

Description

Technical Field

[0001] The utility model relates to the technical field of fluid valve sealing, and in particular to a novel sealing structure for a water valve of a new energy vehicle. Background Art

[0002] Compared with traditional fuel vehicles, new energy vehicles have more and more components that require thermal management. In the thermal management system, some three-way valves or four-way valves are often introduced to control the flow direction and flow of the coolant. However, the three-way valves and four-way valves currently on the market generally have problems such as large internal leakage, high torque and short life, which affect the efficiency and reliability of the thermal management system. Utility Model Content

[0003] The present invention aims to solve the above-mentioned problems and specifically designs a new sealing structure for the water valve of new energy vehicles to improve the sealing effect of the water valve.

[0004] To achieve the above-mentioned objectives, the present invention provides a new sealing structure for a water valve of a new energy vehicle, comprising a shaft seal and a pipe mouth seal with a through hole, wherein the shaft seal is arranged between the valve core shaft and the flange, and the pipe mouth seal is curved and arranged between the water valve body and the valve core, and the curvature of the curved surface is adapted to the curvature of the side wall of the valve core, and the pipe mouth seal comprises a first sealing layer and a second sealing layer fixedly connected to the first sealing layer, the first sealing layer abuts the valve body, and the second sealing layer abuts the valve core.

[0005] Preferably, the diameter of the through hole is not less than the diameter of the valve core and the pipe opening in the valve body.

[0006] Furthermore, the first sealing layer is fixedly connected with a sleeve portion, and the sleeve portion abuts against the inner wall of the valve body.

[0007] Furthermore, a limiting groove is provided on the inner wall of the valve body, and the sleeve portion is provided with a protrusion matching the limiting groove.

[0008] Furthermore, the edge of the protrusion 1 is chamfered.

[0009] Furthermore, the side end surface of the first sealing layer is provided with a plurality of grooves.

[0010] Preferably, the first sealing layer is an EPDM rubber layer.

[0011] Furthermore, the second sealing layer is fixedly connected with a second annular protrusion, and the second sealing layer abuts against the valve core through the second protrusion.

[0012] Preferably, the second sealing layer is a PTFE gasket layer.

[0013] Preferably, the shaft seal is an X-shaped sealing ring.

[0014] In summary, the present invention has the following advantages and beneficial technical effects:

[0015] 1. The utility model provides an integrated seal with an integrated sealing structure design, which can be directly assembled with the valve body and realize static and dynamic sealing. It has the characteristics of simple structure, good sealing effect, long service life and low cost. The pipe mouth seal adopts a two-layer structure design. The static seal is a surface seal. The EPDM rubber layer has a wide range of applications and good sealing effect. The dynamic seal adopts a PTFE gasket layer with a very low friction coefficient, good self-lubrication and wear resistance, which can further reduce friction and wear and extend the service life of parts.

[0016] 2. The combination of the protrusion and the limit groove in the utility model is used to fix and position the components to prevent them from displacement during movement or force, thereby ensuring the stable operation of the valve core; the chamfered design enables the pipe mouth seal to form a specific inclined surface, and the resistance encountered by the seal when inserted into the valve body pipe mouth is reduced, which greatly facilitates the assembly of parts and improves the sealing effect of the valve body; the setting of multiple groups of grooves effectively adjusts the compression amount, making the torque of the valve body smaller and reducing the requirements for the output torque of the actuator, thereby reducing costs and the working noise of the motor, and the NVH of the product is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 It is an explosion diagram of the utility model;

[0019] Figure 2 It is a diagram of the use state of the utility model;

[0020] Figure 3 This is a three-dimensional diagram of the pipe mouth seal in the utility model Figure 1 ;

[0021] Figure 4 It is a cross-sectional schematic diagram of the pipe opening sealing member of the utility model;

[0022] Figure 5 It is a side view schematic diagram of the pipe opening sealing member of the utility model;

[0023] Figure 6 This is a top view of the pipe opening seal of the utility model;

[0024] Figure 7 This is a three-dimensional diagram of the pipe mouth seal in the utility model Figure 2 .

[0025] The reference numerals in the accompanying drawings are:

[0026] 1. Shaft seal; 2. Pipe seal; 21. First sealing layer; 22. Second sealing layer; 23. Through hole; 24. Sleeve portion; 25. First protrusion; 26. Groove; 27. Second protrusion;

[0027] 3. Valve core; 4. Valve body; 5. Flange. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-Figure 7 The utility model is described in further detail:

[0029] like Figure 1-Figure 2 As shown, this embodiment discloses a new sealing structure for a new energy vehicle water valve, including a shaft seal 1 and a pipe mouth seal 2. The shaft seal 1 is sleeved on the outer wall of the valve core 3 rotating shaft, and the end face of the outer wall abuts the flange 5. The pipe mouth seal 2 is curved and is arranged between the water valve body 4 and the valve core 3, and the curvature of the curved surface is adapted to the curvature of the side wall of the valve core 3. The pipe mouth seal 2 includes a first sealing layer 21 and a second sealing layer 22. The first sealing layer 21 is bonded to the second sealing layer 22. The first sealing layer 21 abuts the valve body 4, and the second sealing layer 22 abuts the valve core 3.

[0030] like Figure 3-Figure 4 As shown, the pipe mouth seal 2 is provided with a through hole 23, the diameter of the through hole 23 is equal to the diameter of the pipe mouth of the side wall of the valve body 4, and is larger than the diameter of the pipe mouth of the side wall of the valve core 3; the first sealing layer 21 is integrally formed and fixedly connected with a sleeve portion 24, and the sleeve portion 24 abuts the inner wall of the pipe mouth of the valve body 4, wherein the pipe mouth of the valve body 4 and the sleeve portion 24 both coincide with the axis of the through hole 23.

[0031] like Figure 2-Figure 4 As shown, a limiting groove is provided on the inner wall of the pipe opening of the valve body 4, and an annular protrusion 25 is integrally formed and fixedly connected to the outer ring of the sleeve portion 24. The shape and size of the protrusion 25 match the limiting groove; the edge of the protrusion 25 is chamfered.

[0032] like Figure 5-Figure 7 As shown, eight groups of grooves 26 are provided on the side end surface of the first sealing layer 21 close to the valve body 4, and the grooves 26 are arranged in a circular array around the axis of the through hole 23; the first sealing layer 21 is an EPDM rubber layer; the second sealing layer 22 is fixedly connected with an annular protrusion 27, and the second sealing layer 22 abuts against the side wall of the valve core 3 through the protrusion 27, wherein the inner diameter of the protrusion 27 is larger than the diameter of the through hole 23; the second sealing layer 22 is a PTFE gasket layer.

[0033] like Figure 1 As shown, the shaft seal 1 is an X-shaped sealing ring.

[0034] The working principle of the new sealing structure for the water valve of new energy vehicles in this utility model is as follows:

[0035] When assembling the water valve, insert the sleeve part 24 in the pipe mouth seal 2 into the pipe mouth of the valve body 4 until the protrusion 25 is tightly fitted with the limit groove. The pipe mouth seal 2 and the valve body 4 adopt an interference fit. By compressing the first sealing layer 21, a stable surface seal is formed at the mating surface of the valve body 4, thereby realizing the static seal between the valve body 4 and the pipe mouth seal 2; install the valve core 3, and interference fit it with the pipe mouth seal 2 so that the protrusion 2 27 contacts the valve core 3, thereby realizing the dynamic seal between the valve core 3 and the pipe mouth seal 2 when the valve core 3 switches the working mode; the shaft seal 1 is arranged between the valve core 3 and the flange 5 to realize the sealing of the rotating shaft of the valve core 3.

[0036] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A new sealing structure for a water valve of a new energy vehicle, characterized by: It includes a shaft seal and a pipe mouth seal with a through hole, the shaft seal is arranged between the valve core shaft and the flange, the pipe mouth seal is curved, arranged between the water valve body and the valve core, and the curvature of the curve is adapted to the curvature of the side wall of the valve core, the pipe mouth seal includes a first sealing layer and a second sealing layer fixedly connected to the first sealing layer, the first sealing layer abuts the valve body, and the second sealing layer abuts the valve core.

2. The novel sealing structure for a water valve of a new energy vehicle according to claim 1 is characterized in that: The diameter of the through hole is not less than the diameter of the valve core and the pipe opening in the valve body.

3. The new sealing structure for a water valve of a new energy vehicle according to claim 2 is characterized in that: A sleeve portion is fixedly connected to the first sealing layer, and the sleeve portion abuts against the inner wall of the valve body.

4. The new sealing structure for a water valve of a new energy vehicle according to claim 3 is characterized in that: A limiting groove is provided on the inner wall of the valve body, and a protrusion matching the limiting groove is installed on the sleeve portion.

5. The new sealing structure for a water valve of a new energy vehicle according to claim 4 is characterized in that: The edge of the protrusion is chamfered.

6. The new sealing structure for a water valve of a new energy vehicle according to claim 5 is characterized in that: The side end surface of the first sealing layer is provided with multiple groups of grooves.

7. The new sealing structure for a water valve of a new energy vehicle according to claim 6 is characterized in that: The first sealing layer is an EPDM rubber layer.

8. The new sealing structure for a water valve of a new energy vehicle according to claim 7 is characterized in that: The second sealing layer is fixedly connected to a second annular protrusion, and the second sealing layer abuts against the valve core through the second protrusion.

9. The new sealing structure for a water valve of a new energy vehicle according to claim 8 is characterized in that: The second sealing layer is a PTFE gasket layer.

10. The new sealing structure for a water valve of a new energy vehicle according to claim 9, characterized in that: The shaft seal is an X-shaped sealing ring.

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