A switch valve sealing gasket, a rotary switch and a new energy electric vehicle switch valve

Abstract

A switching valve sealing gasket, a rotary switch, and a switching valve for new energy electric vehicles are disclosed. This relates to the field of new energy vehicle technology. The switching valve sealing gasket of this utility model includes an annular sealing body and a support portion disposed in the inner annular region of the sealing body. The sealing body is bent inwards on both sides, with the radius of curvature of the bend matching the outer circular surface of the rotary switch. By setting the sealing body in an annular shape and bending the edges inwards, with the radius of curvature matching the outer circular surface of the rotary switch, a tight fit can be formed between the sealing body and the outer circular surface of the rotary switch, improving sealing reliability. The support portion is fixedly connected to the inner wall of the sealing body, which enhances the overall structural strength of the sealing gasket, prevents excessive deformation of the sealing body during assembly or use, ensures sealing stability, and facilitates the positioning and installation of the sealing gasket.

Description

Technical Field

[0001] This utility model relates to the field of new energy vehicle technology, and in particular to a switch valve sealing gasket, a rotary switch, and a switch valve for new energy electric vehicles. Background Technology

[0002] The battery coolant piping system is a key auxiliary system for temperature control of the power battery pack in new energy vehicles (especially electric vehicles). Its core function is to dissipate the heat generated by the battery during operation through circulating coolant (usually a dedicated antifreeze or water-based coolant) (heat dissipation mode), or to preheat the battery in low-temperature environments using a heating device (preheating mode), thereby maintaining the battery temperature within the optimal operating range (generally 20-40℃) to ensure battery charge / discharge efficiency, cycle life, and safety. This system typically consists of a coolant pump, radiator (or heat exchanger), expansion tank, piping, valves, temperature sensors, and a control module, forming a closed-loop circulation system.

[0003] The on / off valve is a crucial control component in the battery coolant piping system. Its main functions include circuit on / off control, flow regulation, and diversion. Precise control directly impacts the efficiency, energy consumption, and reliability of the battery thermal management system, making it a key component for maintaining battery performance. The rotary switch of the on / off valve is typically sealed to the body using a sealing ring. However, this seal is difficult to install and prone to detachment during actual installation. Precise alignment is required during installation; even slight deviations can lead to installation difficulties. Furthermore, after installation, factors such as vibration and pressure changes during equipment use can easily cause the sealing ring to detach from its mounting position, rendering it ineffective and affecting the normal operation of the equipment.

[0004] Therefore, how to improve installation efficiency and operational stability while ensuring the sealing between the rotary switch and the valve body is a technical problem that urgently needs to be solved in this case. Utility Model Content

[0005] This utility model addresses the above-mentioned problems by providing a switch valve sealing gasket, a rotary switch, and a switch valve for new energy electric vehicles that improves installation efficiency and operational stability while ensuring the sealing between the rotary switch and the switch valve body.

[0006] The technical solution of this utility model is: A valve sealing gasket, comprising: The sealing body is ring-shaped, with both sides bending inwards, and the radius of curvature of the bend is adapted to the outer circular surface of the rotary switch; The support portion is disposed in the inner ring region of the sealing body, and its ends are all fixedly connected to the inner sidewall of the sealing body.

[0007] Specifically, the support part has a straight-line structure.

[0008] Specifically, the support portion has a cross-shaped structure.

[0009] Specifically, the support part has a cross-shaped structure.

[0010] Specifically, the thickness of the two sides of the sealing body is not less than the thickness of its upper and lower sides.

[0011] Specifically, the sealing body is an EPDM soft rubber sealing body.

[0012] Specifically, the support part is an EPDM soft rubber support part.

[0013] A rotary switch for a switching valve, further comprising, from bottom to top, the following components connected in sequence: The switch section is provided with a plurality of spaced liquid passage grooves, and a first sealing groove adapted to the sealing gasket is provided between adjacent liquid passage grooves. The torsion part is fixedly mounted on the switch part.

[0014] Specifically, the torsion part is provided with at least one pair of limiting hooks; The switch section is provided with a second sealing groove, and the second sealing groove is provided with a second sealing ring.

[0015] A switching valve for electric vehicles for new energy applications includes a rotary switch for the switching valve and a valve body with an inlet and an outlet. The rotary switch can rotatably seal the hollow cavity with an opening at the top between the inlet and outlet, and is used to control the connection and disconnection between the inlet and outlet.

[0016] This utility model relates to a switch valve sealing gasket, comprising an annular sealing body and a support portion disposed in the inner annular region of the sealing body; the two sides of the sealing body are bent inwards respectively, and the radius of curvature of the bending is adapted to the outer circular surface of the rotary switch; by setting the sealing body to an annular shape and bending the two side edges inwards, and adapting its radius of curvature to the outer circular surface of the rotary switch, the sealing body and the outer circular surface of the rotary switch can be tightly fitted, improving the sealing reliability; the support portion is fixedly connected to the inner wall of the sealing body, which can enhance the overall structural strength of the sealing gasket, avoid excessive deformation of the sealing body during assembly or use, ensure sealing stability, and facilitate the positioning and installation of the sealing gasket.

[0017] The sealing gasket in this case can be installed or injection molded. When injection molded, it is directly injected and cooled in the first sealing groove to form the sealing gasket. The support part provides support while perfectly ensuring the fluidity during injection molding. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the sealing gasket. Figure 1 ; Figure 2 This is a schematic diagram of the three-dimensional structure of the sealing gasket. Figure 2 ; Figure 3 This is a schematic diagram of the three-dimensional structure of a rotary switch. Figure 1 ; Figure 4 This is a schematic diagram of the three-dimensional structure of a rotary switch. Figure 2 ; Figure 5 This is a schematic diagram of the three-dimensional structure of the valve body; Figure 6 This is a schematic diagram of the cross-sectional structure of a rotary switch; Figure 7 This is the front view of the rotary switch; Figure 8 yes Figure 7 Schematic diagram of the cross-sectional structure along the middle A direction; In the diagram, 110 is the sealing body and 120 is the support part. 200 is a rotary switch, 210 is the switch section, 211 is a liquid passage groove, 212 is the first sealing groove, 213 is the second sealing groove, and 214 is the second sealing ring. 220 is the torsion part, and 221 is the limit hook. 300 is the valve body, 310 is the hollow cavity, 320 is the reinforcing part, 330 is the Green joint, and 340 is the anti-misalignment limit post. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0020] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," "right," "vertical," "horizontal," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] The following is for reference. Figure 1-8 Describe this utility model; A valve sealing gasket, comprising: The sealing body 110 is annular, with its two sides (to Figure 1 (The direction is the reference direction) bends inward (to the contact surface of rotary switch 200), and the radius of curvature of the bend is adapted to the outer circular surface of rotary switch 200; The support portion 120 is disposed in the inner ring region of the sealing body 110, and its ends are fixedly connected to the inner sidewall of the sealing body 110.

[0023] By setting the sealing body 110 as an annular shape with its two side edges bent inward, and adapting its radius of curvature to the outer circular surface of the rotary switch 200, the sealing body 110 and the outer circular surface of the rotary switch 200 can be tightly fitted, improving sealing reliability. The support part 120 is fixedly connected to the inner side wall of the sealing body 110, which can enhance the overall structural strength of the sealing gasket, prevent the sealing body from undergoing excessive deformation during assembly or use, ensure sealing stability, and facilitate the positioning and installation of the sealing gasket.

[0024] The support section 120 has a straight-line structure.

[0025] The support part 120 adopts a straight-line structure, which provides a certain support for the sealing body 110. The structure is simple, which can reduce the amount of material used, reduce the processing difficulty and cost, and at the same time can form a suitable flow space in the inner ring area of ​​the sealing body 110 to adapt to the fluid flow requirements under specific working conditions.

[0026] The support part 120 has a cross-shaped structure.

[0027] The support part 120 has a cross-shaped structure, which can provide uniform support to the sealing body 110 from four directions, further improving the structural stability and deformation resistance of the sealing gasket. This ensures that the sealing body 110 can maintain good contact with the outer surface of the rotary switch 200 even after long-term use or under stress, thus extending the service life of the sealing gasket. Furthermore, the symmetry of the cross-shaped structure is conducive to the precise installation and positioning of the sealing gasket.

[0028] The support section 120 has a cross-shaped structure.

[0029] The support part 120 has a star-shaped structure, which increases the number of support points and support directions compared to the cross-shaped structure. It can provide more comprehensive and balanced support for the sealing body 100, significantly improving the overall rigidity and deformation resistance of the sealing gasket. It is especially suitable for working conditions with high requirements for sealing performance and structural stability, and can effectively cope with complex stress conditions to ensure the durability of the sealing effect.

[0030] The thickness of the sealing body 110 on both sides is not less than the thickness of its upper and lower sides.

[0031] The thickness of the two sides of the sealing body 110 is not less than the thickness of the top and bottom sides, which can enhance the structural strength and wear resistance of the contact parts between the two sides of the sealing body 110 and the outer circular surface of the rotary switch. It can adapt to the continuous compression and friction generated by the two sides due to the cooperation with the rotary switch 200. At the same time, the relatively thin top and bottom sides can retain a certain elasticity, which can compensate for the gap caused by assembly error or thermal expansion and contraction through slight deformation, thus taking into account both sealing reliability and compatibility.

[0032] The sealing body 110 is an EPDM soft rubber sealing body.

[0033] The support part 120 is an EPDM soft rubber support part.

[0034] The sealing body 110 and the support part 120 are made of EPDM soft rubber. Utilizing its excellent elasticity and weather resistance, the sealing body 110 and the support part 120 can form a tighter fit with the outer surface of the rotary switch 200, maintaining good sealing performance even during long-term use or temperature changes. At the same time, EPDM soft rubber has the characteristics of being resistant to coolant and aging, which can adapt to the coolant environment of the switch valve in new energy electric vehicles, extending the service life of the gasket. In addition, the soft rubber material is easy to deform elastically during assembly, reducing the difficulty of installation.

[0035] A rotary switch for a switching valve includes a switching valve sealing gasket, and further includes the following components connected sequentially from bottom to top: The switch part 210 is provided with a plurality of spaced liquid passage grooves 211, and a first sealing groove 212 adapted to the sealing gasket is provided between adjacent liquid passage grooves 211; the bottom of the liquid passage groove 211 is provided with an opening and has a U-shaped structure. The torsion part 220 is fixedly mounted on the switch part 210.

[0036] The torsion part 220 is provided with at least one pair of limit hooks 221 for locking onto the valve body 300; multiple guide ramps are provided on the outer side of the top opening of the hollow cavity 310 in the valve body 300 to facilitate the quick and easy locking of the limit hooks 221 onto the valve body 300; after locking onto the valve body 300, a limit block can be added at the corresponding position of the valve body 300 to limit the rotation range of the rotary switch. The switch part 210 is provided with a second sealing groove 213, and the second sealing groove 213 is provided with a second sealing ring 214 for sealing the top opening of the valve body 300.

[0037] The rotary switch and the EPDM soft rubber sealing gasket are a composite structure. The first sealing groove 212 of the rotary switch can be injection molded with EPDM soft rubber to form a sealing gasket for covering. This not only makes it less likely to fall off, but also further reduces the difficulty of installation.

[0038] A switching valve for electric vehicles for new energy use includes a rotary switch for the switching valve, characterized in that it further includes a valve body 300 having an inlet and an outlet. The rotary switch can rotatably seal the hollow cavity 310 with a top opening between the inlet and outlet, and is used to control the connection and disconnection between the inlet and outlet.

[0039] Rotary switch and valve body 300 sealing form through Figure 6 It can be seen that the rotary switch is sealed to the top area of ​​the hollow cavity through an O-ring.

[0040] The valve body 300 in this case is made of plastic and is integrally molded. From the middle to the end, it consists of a hollow cavity 310, a reinforcing part 320, and a Green connector 330.

[0041] The rotary switch is rotatably mounted in the hollow cavity 310. The valve body 300 has multiple reinforcing sections 320 with cross-shaped reinforcing ribs on its outer side to enhance its strength. The end of each reinforcing section 320 is equipped with a Green connector 330 for connecting to a matching pipeline. A limiting plate is provided between the outer side of the reinforcing section 320 and the outer side of the Green connector 330. The Green connector 330 has a third sealing groove, and a third sealing ring on the third sealing groove achieves a sealed connection. The inner cavities of a pair of Green connectors 330 are respectively connected to the hollow cavity 310 through corresponding reinforcing sections 320, forming symmetrically distributed inlet and outlet ports. Due to the symmetrical structure of the Green connectors 330, with identical structures at both ends, the bottom of the valve body 300 is equipped with an anti-misalignment limiting post 340. The anti-misalignment limiting post 340 is located near the inlet or outlet port to improve positional identification and prevent the rotary switch from being installed backwards.

[0042] The working principle of the switch valve is as follows: When the valve body 300 remains stationary, the rotary switch is rotated. When the liquid passage 211 is aligned with the inlet and outlet, the inlet and outlet are connected, which is the maintenance state, and is sealed by the O-ring seal. When the rotary switch is rotated 90 degrees, the corresponding EPDM soft rubber sealing gasket seals the inlet and outlet, cutting off the inlet and outlet to maintain the working state.

[0043] Regarding the information disclosed in this case, the following points need to be clarified: (1) The accompanying drawings of the embodiments disclosed in this case only involve the structures involved in the embodiments disclosed in this case. Other structures can refer to the general design. (2) Where there is no conflict, the embodiments and features disclosed in this case can be combined with each other to obtain new embodiments; The above are merely specific embodiments disclosed in this case, but the scope of protection of this disclosure is not limited thereto. The scope of protection disclosed in this case shall be determined by the scope of protection of the claims.

Claims

1. A sealing gasket for a switching valve, characterized in that, include: The sealing body (110) is annular, with its two sides bent inwards respectively, and the radius of curvature of the bend is adapted to the outer circular surface of the rotary switch (200); The support part (120) is disposed in the inner ring area of ​​the sealing body (110), and its ends are fixedly connected to the inner sidewall of the sealing body (110).

2. The sealing gasket for a switching valve according to claim 1, characterized in that, The support part (120) has a straight-line structure.

3. A sealing gasket for a switching valve according to claim 1, characterized in that, The support part (120) has a cross-shaped structure.

4. A sealing gasket for a switching valve according to claim 1, characterized in that, The support part (120) has a cross-shaped structure.

5. A sealing gasket for a switching valve according to claim 1, characterized in that, The thickness of the sealing body (110) on both sides is not less than the thickness of its upper and lower sides.

6. A sealing gasket for a switching valve according to claim 1, characterized in that, The sealing body (110) is an EPDM soft rubber sealing body.

7. A valve sealing gasket according to claim 1, characterized in that, The support part (120) is an EPDM soft rubber support part.

8. A rotary switch for a switching valve, comprising a valve sealing gasket as described in claim 1, characterized in that, It also includes connections from bottom to top: The switch part (210) is provided with a plurality of spaced liquid passage grooves (211), and a first sealing groove (212) adapted to the sealing gasket is provided between adjacent liquid passage grooves (211). The torsion part (220) is fixedly provided on the switch part (210).

9. A rotary switch for a switching valve according to claim 8, characterized in that, The torsion part (220) is provided with at least one pair of limiting hooks (221); The switch part (210) is provided with a second sealing groove (213), and the second sealing groove (213) is provided with a second sealing ring (214).

10. A switching valve for electric vehicles in new energy applications, comprising a rotary switch as described in claim 8, characterized in that, It also includes a valve body (300) with an inlet and an outlet. The rotary switch can rotatably seal the hollow cavity (310) with a top opening between the inlet and outlet, and is used to control the connection and disconnection between the inlet and outlet.

Images