A sealed protective cover for a charging socket
By designing a sealed protective cover for the charging socket and adopting a sealing structure with an upper and lower protective cover, the problem of water and dust ingress in traditional charging sockets under harsh environments is solved, achieving higher sealing performance and charging safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN YONGGUI SCI & TECH CO LTD
- Filing Date
- 2025-04-08
- Publication Date
- 2026-06-02
AI Technical Summary
Traditional electric vehicle charging sockets are prone to water and dust in rain, snow, or dusty environments, leading to charging failures such as short circuits and excessive temperature rise, posing safety hazards.
A sealing protective cover for a charging socket is designed, including an upper protective cover and a lower protective cover. The sealing performance of the charging socket is enhanced by end face sealing and radial sealing structures, combined with a locking assembly, an insulator assembly and a functional assembly.
The protection level of the charging socket has been improved, the sealing performance of the charging interface has been enhanced, a stable electrical connection and charging safety have been ensured, water and dust ingress have been prevented, and the safety of the electric vehicle charging process has been improved.
Smart Images

Figure CN224318784U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of new energy charging system technology, and in particular to a sealing protective cover for a charging socket. Background Technology
[0002] With the rapid advancement of technology, people are increasingly pursuing a higher quality of life. Cars have become an indispensable means of transportation for daily travel, and people are becoming more discerning about their comfort and safety. With the rapid development of new energy technologies, the use of electric vehicles is becoming more widespread. The main function of an electric vehicle charging socket is to achieve electrical connection between the car's charging plug and the charging gun on the charging dock, ensuring stable charging operations. Therefore, to guarantee the stability of the electric vehicle charging process, car manufacturers are paying increasing attention to the structure of electric vehicle charging sockets.
[0003] Currently, traditional electric vehicle charging sockets do not provide adequate protection and fail to meet the requirements for actual use, especially in harsh environments such as rain, snow, or dust. During charging, rainwater or dust can seep into the charging gun and the charging socket's contact terminals, causing short circuits, excessive temperature rise of the contact terminals, and other charging malfunctions, thus posing safety hazards to electric vehicle charging. Utility Model Content
[0004] The purpose of this utility model is to design a sealed protective cover for a charging socket to solve the problems of easy water and dust ingress and failure of the upper and lower protective covers.
[0005] This utility model achieves the above objectives through the following technical solutions:
[0006] This utility model provides a sealing protective cover for a charging socket, including a protective cover assembly, a locking assembly, a protective cover pin, a socket housing, an insulator fixing bolt, an insulator assembly, a functional component, and a fixing plate screw. The protective cover assembly is fixed to the front of the socket housing by the protective cover pin. The locking assembly is installed and fixed to the front of the socket housing and locks the protective cover assembly. The insulator assembly is fixed to the back of the socket housing by the insulator fixing bolt. The functional component is installed and fixed in the insulator assembly by the fixing plate screw.
[0007] As a preferred embodiment of this utility model, the protective cover assembly includes an upper protective cover, a lower protective cover, an upper sealing gasket, a lower sealing ring, a protective cover torsion spring, and a damper. The upper sealing gasket is pasted onto the end face of the upper protective cover to achieve end face sealing, and the lower sealing ring is installed in the radial groove of the lower protective cover to achieve radial sealing. Then, the damper and the protective cover torsion spring are respectively installed into the upper and lower protective covers, and then installed into the front mounting surface of the socket housing.
[0008] As a preferred embodiment of this utility model, the locking assembly includes a locking buckle, a locking torsion spring, and a locking pin. The other side of the protective cover pin is inserted into the front mounting surface of the socket housing. The locking torsion spring is installed into the locking buckle and then into the mounting surface of the socket housing. The locking pin is then inserted for positioning. After the locking buckle is installed, the upper and lower protective covers are in a closed state. The upper protective cover is now in an end face seal and the lower protective cover is in a radial seal state.
[0009] As a preferred embodiment of this utility model, the insulator assembly includes a lower insulator sealing ring, an upper insulator sealing ring, an upper insulator, a lower insulator, and the upper and lower insulators are respectively installed in the upper and lower insulator sealing rings, and finally installed on the back mounting surface of the socket housing and fixed with insulator fixing bolts.
[0010] As a preferred embodiment of this utility model, the functional components include a grounding socket sealing ring, a signal socket sealing ring, a power socket sealing ring, a grounding socket, a signal socket, a power socket, an upper fixing plate, and a lower fixing plate. The grounding socket, signal socket, and power socket are respectively fitted with the grounding socket sealing ring, the signal socket sealing ring, and the power socket sealing ring, and then installed on the upper fixing plate and the lower fixing plate. The entire assembly is then installed into the upper insulator and the lower insulator and locked with fixing plate screws, ensuring that the entire ring seal and the socket seal do not leak.
[0011] The beneficial effects of this utility model are as follows: This utility model has a simple structure and is easy to maintain. By combining the end face sealing of the upper protective cover and the radial sealing of the lower protective cover, the protection level of the charging socket is effectively improved, the sealing performance of the charging interface is enhanced, water and dust are not easy to enter, the protection effect of the charging interface is guaranteed, and a stable electrical connection and charging connection are effectively guaranteed, thereby enhancing the safety of electric vehicles in the charging state. Attached Figure Description
[0012] Figure 1 This is an exploded view of the sealing protective cover of a charging socket according to this utility model.
[0013] Figure 2 This is a front view of a sealing protective cover for a charging socket according to this utility model.
[0014] Figure 3 yes Figure 2 AA sectional view.
[0015] Figure 4 yes Figure 2 BB cross-sectional view.
[0016] In the diagram: 1-Upper protective cover, 2-Lower protective cover, 3-Upper sealing gasket, 4-Lower sealing ring, 5-Protective cover torsion spring, 6-Damper, 7-Lock, 8-Lock torsion spring, 9-Lock pin, 10-Protective cover pin, 11-Socket housing, 12-Insulator fixing bolt, 13-Lower insulator sealing ring, 14-Upper insulator sealing ring, 15-Upper insulator, 16-Lower insulator, 17-Grounding socket sealing ring, 18-Signal socket sealing ring, 19-Power socket sealing ring, 20-Grounding socket, 21-Signal socket, 22-Power socket, 23-Upper fixing plate, 24-Lower fixing plate, 25-Fixing plate screw. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0019] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0020] In the description of this utility model, it should be understood that the terms "upper", "lower", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use, or the orientation or positional relationship that is commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0021] Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.
[0022] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, terms such as "set" and "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0023] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.
[0024] As attached Figure 1-4 As shown, this embodiment provides a sealed protective cover for a charging socket, including a protective cover assembly, a locking assembly, a protective cover pin 10, a socket housing 11, an insulator fixing bolt 12, an insulator assembly, a functional component, and a fixing plate screw 25. The protective cover assembly is fixed to the front of the socket housing (11) by the protective cover pin 10. The locking assembly is installed and fixed to the front of the socket housing 11 and locks the protective cover assembly. The insulator assembly is fixed to the back of the socket housing 11 by the insulator fixing bolt 12. The functional component is installed and fixed in the insulator assembly by the fixing plate screw 25.
[0025] As a preferred embodiment of this utility model, the protective cover assembly includes an upper protective cover 1, a lower protective cover 2, an upper sealing gasket 3, a lower sealing ring 4, a protective cover torsion spring 5, and a damper 6. The upper sealing gasket 3 is pasted on the end face of the upper protective cover 1 to achieve end face sealing, and the lower sealing ring 4 is installed in the radial groove of the lower protective cover 2 to achieve radial sealing. Then, the damper 6 and the protective cover torsion spring 5 are respectively installed into the upper protective cover 1 and the lower protective cover 2, and then installed into the front mounting surface of the socket housing 11.
[0026] As a preferred embodiment of this utility model, the locking assembly includes a locking buckle 7, a locking torsion spring 8, and a locking pin 9. The other side of the protective cover pin 10 is inserted into the front mounting surface of the socket housing 11. The locking torsion spring 8 is installed into the locking buckle 7 and then into the mounting surface of the socket housing 11. The locking pin 9 is then inserted for positioning. After the locking buckle 7 is installed, the upper protective cover 1 and the lower protective cover 2 are in a closed state. The upper protective cover 1 is now in an end face sealed state and the lower protective cover 2 is in a radial sealed state.
[0027] As a preferred embodiment of the present utility model, the insulator assembly includes a lower insulator sealing ring 13, an upper insulator sealing ring 14, an upper insulator 15, a lower insulator 16, and the upper insulator 15 and the lower insulator 16 are respectively installed in the upper insulator sealing ring 14 and the lower insulator sealing ring 13, and finally installed on the back mounting surface of the socket housing 11 and fixed with insulator fixing bolts 12.
[0028] As a preferred embodiment of this utility model, the functional components include a grounding socket sealing ring 17, a signal socket sealing ring 18, a power socket sealing ring 19, a grounding socket 20, a signal socket 21, a power socket 22, an upper fixing plate 23, and a lower fixing plate 24. The grounding socket 20, the signal socket 21, and the power socket 22 are respectively installed into the grounding socket sealing ring 17, the signal socket sealing ring 18, and the power socket sealing ring 19, and then installed onto the upper fixing plate 23 and the lower fixing plate 24. They are then installed as a whole into the upper insulator 15 and the lower insulator 16 and locked with fixing plate screws 25, ensuring that the entire ring seal and the socket seal do not leak.
[0029] Although the present invention has been described herein with reference to illustrative embodiments, the above embodiments are merely preferred embodiments of the present invention, and the implementation of the present invention is not limited to the above embodiments. It should be understood that those skilled in the art can design many other modifications and implementations, which will fall within the scope and spirit of the principles disclosed in this application.
Claims
1. A sealed protective cover for a charging socket, characterized in that: The device includes a protective cover assembly, a latch assembly, a protective cover pin (10), a socket housing (11), an insulator fixing bolt (12), an insulator assembly, a functional component, and a fixing plate screw (25). The protective cover assembly is fixed to the front of the socket housing (11) by the protective cover pin (10). The latch assembly is installed and fixed to the front of the socket housing (11) and locks the protective cover assembly. The insulator assembly is fixed to the back of the socket housing (11) by the insulator fixing bolt (12). The functional component is installed and fixed in the insulator assembly by the fixing plate screw (25).
2. The sealing protective cover for a charging socket according to claim 1, characterized in that: The protective cover assembly includes an upper protective cover (1), a lower protective cover (2), a protective cover torsion spring (5), and a damper (6). The upper protective cover (1) is an end face seal, and the lower protective cover (2) is a radial seal. Then, the damper (6) and the protective cover torsion spring (5) are respectively installed into the upper protective cover (1) and the lower protective cover (2), and then installed into the front mounting surface of the socket housing (11).
3. The sealing protective cover for a charging socket according to claim 2, characterized in that: The locking assembly includes a lock (7), a lock torsion spring (8), and a lock pin (9). The lock torsion spring (8) is installed inside the lock (7) and then onto the front mounting surface of the socket housing (11). The lock pin (9) is then inserted for positioning.
4. The sealing protective cover for a charging socket according to claim 3, characterized in that: The insulator assembly includes a lower insulator sealing ring (13), an upper insulator sealing ring (14), an upper insulator (15), a lower insulator (16), and the upper insulator (15) and the lower insulator (16) are respectively installed into the upper insulator sealing ring (14) and the lower insulator sealing ring (13), and finally installed into the back mounting surface of the socket housing (11) and fixed with insulator fixing bolts (12).
5. The sealing protective cover for a charging socket according to claim 4, characterized in that: The functional components include a grounding socket sealing ring (17), a signal socket sealing ring (18), a power socket sealing ring (19), a grounding socket (20), a signal socket (21), a power socket (22), an upper fixing plate (23), and a lower fixing plate (24). The grounding socket (20), the signal socket (21), and the power socket (22) are respectively installed into the grounding socket sealing ring (17), the signal socket sealing ring (18), and the power socket sealing ring (19) and then installed onto the upper fixing plate (23) and the lower fixing plate (24). They are then installed as a whole into the upper insulator (15) and the lower insulator (16) and locked with fixing plate screws (25).
6. The sealing protective cover for a charging socket according to claim 5, characterized in that: It also includes an upper sealing gasket (3), and the end face seal is an upper protective cover (1) with the upper sealing gasket (3) pasted on the end face.
7. A sealing protective cover for a charging socket according to claim 6, characterized in that: It also includes a lower sealing ring (4), wherein the radial seal is installed in the radial groove of the lower protective cover (2).