Charging gun socket

By equipping the charging gun socket with a separate protective cover and linkage, the problem of the DC interface being easily soiled during AC charging is solved, achieving effective protection of the charging socket when using AC and improving the stability of the electrical connection.

CN224197603UActive Publication Date: 2026-05-05ZHANGJIAGANG UCHEN NEW ENERGY TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHANGJIAGANG UCHEN NEW ENERGY TECH CO LTD
Filing Date
2025-05-29
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

When using the AC charging interface, the DC charging interface of the existing charging gun socket is easily exposed, leading to dirt and affecting the stability of the electrical connection.

Method used

Each charging port is equipped with a separate protective cover, and the connection between the protective covers is established through linkage components, so that all protective covers open and close synchronously when they move as a whole, or separate from each other when needed, and the automatic opening and closing of the protective covers is achieved by using locking and elastic components.

Benefits of technology

While ensuring the normal use of the charging socket, the protection of the charging interface has been optimized to prevent the DC charging interface from getting dirty and to improve the stability of the electrical connection.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224197603U_ABST
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Abstract

The utility model relates to a charging gun socket, and relates to the technical field of new energy charging equipment. A socket body comprises protective covers and locking pieces, the protective covers and the locking pieces are arranged on the socket body, the protective covers are arranged in one-to-one correspondence with charging interfaces which are arranged on the socket body and used for being electrically connected with charging guns, and the locking pieces are used for covering the peripheries of the corresponding charging interfaces with the protective covers respectively; the device further comprises a linkage piece which is used for splicing all the protective covers or separating the protective covers, so that when all the protective covers are spliced, all the protective covers are driven by the locking piece to be opened and closed together, and when all the protective covers are separated by the linkage piece, all the protective covers are opened and closed together. And the locking piece can only drive the only one protective cover at the same time. The charging socket has the effect of optimizing the protection effect on the charging interface in the charging socket under the condition of ensuring the normal use of the charging socket.
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Description

Technical Field

[0001] This application relates to the field of new energy charging equipment technology, and in particular to a charging gun socket. Background Technology

[0002] As new energy electric vehicles gradually become more common in the public eye, and their energy replenishment has become a topic of concern as a means of transportation in people's daily lives, the charging process for these vehicles is also gaining attention. The energy replenishment method for new energy electric vehicles involves connecting a charging gun to a socket on the vehicle as a power supply line. Depending on the charging method, the charging gun socket generally includes both AC (alternating current) and DC (direct current) charging interfaces. Furthermore, the charging gun socket is usually equipped with a protective cover to protect both the AC and DC charging interfaces when there is no charging demand.

[0003] In existing charging gun socket specifications, there are socket structures where the AC charging interface is a functional component of the DC charging interface. In actual use, when the protective cover is opened, both the AC and DC charging interfaces will be exposed. If the user only needs to use the AC charging interface and plugs the charging gun into it, the remaining interface parts of the DC charging interface will still be exposed to the external environment. This can easily lead to dirt accumulation and affect the stability of the electrical connection between the charging interface and the charging gun socket, so improvements are needed. Utility Model Content

[0004] In order to optimize the protection of the internal charging interface of the charging socket while ensuring normal use of the charging socket, this application provides a charging gun socket.

[0005] This application provides a charging gun socket, including a socket body, a protective cover and a locking member disposed on the socket body. The protective cover is disposed one-to-one with the charging interface on the socket body for electrical connection with the charging gun. The locking member is used to cover each protective cover around the corresponding charging interface. It also includes a linkage member, which is used to assemble or separate all the protective covers, so that when all the protective covers are assembled, all the protective covers open and close together with the driving of the locking member, and when all the protective covers are separated by the linkage member, the locking member can only drive one protective cover at a time.

[0006] By adopting the above technical solution, each charging port is equipped with a separate protective cover, and a linkage mechanism is set to establish the connection relationship between the protective covers. This connection relationship is divided into mutual splicing relationship (i.e., there is a connection relationship) and mutual separation relationship (i.e., they are not connected to each other). When all the protective covers are spliced ​​together, they can be regarded as a whole. At this time, if the locking mechanism moves any one of the protective covers (i.e., the protective cover is opened or closed), then the other protective covers will also perform the same action. The above usage method can be used when DC charging is required. When only AC charging is required, the linkage mechanism can be used to separate all the protective covers from each other, and then the locking mechanism can be used to open only the protective cover corresponding to AC, so that the other protective covers can still be closed around the corresponding charging port. Ultimately, the effect of optimizing the protection of the charging port inside the charging socket is achieved while ensuring the normal use of the charging socket.

[0007] Preferably, the protective cover is connected to a first elastic element, and the protective cover is movably connected to the socket body through the first elastic element. The protective cover can close or open the corresponding charging port during movement relative to the socket body. When the first elastic element is not deformed, the protective cover is positioned away from the corresponding charging port under the elastic force of the first elastic element, thus opening the corresponding charging port.

[0008] By adopting the above technical solution, when the locking member releases its lock on the protective cover, the protective cover will move away from the charging interface under the elastic force of the first elastic member, thereby accelerating the opening of the protective cover and optimizing the automatic opening and closing effect of the protective cover.

[0009] Preferably, the locking element includes a second elastic element and a locking block that corresponds to the protective cover. The locking block is movably connected to the socket body through the second elastic element, and when the second elastic element is not deformed, the locking block can abut against the surface of the protective cover so that the protective cover is abutted by the locking block and covers the periphery of the corresponding charging interface.

[0010] By adopting the above technical solution, the protective cover is pressed against the periphery of the charging interface by the elastic force of the locking block and the second elastic element. That is, the protective cover is locked by means of the elastic force, so as to achieve the closed protection of the corresponding charging interface by the protective cover.

[0011] Preferably, the locking block is divided into a main locking block and a secondary locking block. The linkage includes a first extension piece disposed on the side wall of the secondary locking block. The first extension piece is located on the side of the main locking block away from the protective block. When the main locking block moves away from the corresponding protective cover to disengage from the corresponding protective cover and open the corresponding charging interface, the first extension piece is located on the movement path of the main locking block. It is used to engage with the main locking block and move away from the protective cover along with the main locking block due to the contact of the main locking block, thereby driving the secondary locking block to move and release the corresponding protective cover.

[0012] By adopting the above technical solution, in the application scenario of this application, the locking block corresponding to the protective cover of the AC charging interface can be used as the slave locking block, and the locking block corresponding to the protective cover of the DC charging interface can be used as the master locking block. Accordingly, when it is necessary to connect the DC charging interface, all protective covers need to be opened at the same time. At this time, the master locking block can be driven to move away from the protective cover. During this process, since the first extension piece is located on the movement path of the master locking block, the master locking block will push against the first extension piece, so that the first extension piece and the slave locking block move together with the master locking block, thereby opening the protective cover corresponding to the AC charging interface. This achieves the effect of unlocking the two protective covers together and opening the corresponding charging interface. If it is only necessary to connect the AC charging interface, the slave locking block can be driven to move away from the corresponding protective cover to open the AC charging interface. During this process, since the first extension piece is located on the side of the master locking block away from the protective block, the movement of the slave locking block will not affect the locking of the corresponding protective cover by the master locking block, thereby achieving the separation of the protective covers corresponding to the AC charging interface and the DC charging interface.

[0013] Preferably, the protective cover is divided into a main cover plate corresponding to the main locking block and a secondary cover plate corresponding to the secondary locking block. The linkage also includes a second extension piece disposed on the side wall of the secondary cover plate. The second extension piece is located on the side of the main cover plate away from the charging interface. When the main locking block and the secondary locking block move together away from the protective cover, the main cover plate disengages from the main locking block and moves away from the charging interface. At this time, the second extension piece is located on the movement path of the main cover plate. The second extension piece is used to overlap with the main cover plate and is resisted by the main cover plate, moving together with the main cover plate away from the charging interface, thereby driving the secondary cover plate to move away from the corresponding charging interface.

[0014] By adopting the above technical solution, when the main locking block is pressed to release the pressure on the main cover plate, the secondary locking block is also rotated due to the linkage action of the first extension piece, thereby releasing the secondary cover plate. Furthermore, this application provides a second extension piece so that the secondary cover plate is pushed by the main cover plate during the movement of the main cover plate and moves faster away from the corresponding charging interface, thereby realizing the rapid opening of all charging interfaces.

[0015] Preferably, the surface of the locking block is provided with wear-resistant protrusions.

[0016] By adopting the above technical solution, the wear-resistant protrusions can increase the contact friction between the user and the locking block during the process of the user contacting and driving the locking block, thereby optimizing the driving stability of the locking block.

[0017] Preferably, the surface of the locking block is provided with a groove for a person to insert and drive the locking block to move.

[0018] By adopting the above technical solution, the groove provides a force application point for the user to drive the locking block and increases the contact area with the locking block, thereby further helping to achieve driving stability of the locking block.

[0019] Preferably, the surface of the socket body is provided with damping, the damping is located on the movement path of the protective cover away from the corresponding charging interface, and the damping is used to abut against the protective cover during the movement of the protective cover away from the charging interface.

[0020] By adopting the above technical solution, when the protective cover moves away from the corresponding charging interface, the damping is located on the corresponding movement path. This setting is to use damping to buffer the movement of the protective cover under the elastic force of the second elastic element.

[0021] In summary, this application includes the following beneficial technical effects:

[0022] Each charging port is equipped with a separate protective cover, and a linkage mechanism is set up to establish the connection relationship between the protective covers. This connection relationship is divided into mutual splicing relationship (i.e., there is a connection relationship) and mutual separation relationship (i.e., there is no connection between them). When all the protective covers are spliced ​​together, they can be regarded as a whole. At this time, if the locking mechanism moves any one of the protective covers (i.e., the protective cover is opened or closed), then the other protective covers will also perform the same action. The above usage method can be used when DC charging is required. When only AC charging is required, the linkage mechanism can be used to separate all the protective covers from each other, and then the locking mechanism can be used to open only the protective cover corresponding to AC, so that the other protective covers can still cover the periphery of the corresponding charging port. Ultimately, the effect of optimizing the protection of the internal charging port of the charging socket is achieved while ensuring the normal use of the charging socket. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a charging gun socket with its protective cover open, as disclosed in the embodiments of this application.

[0024] Figure 2 This is a schematic diagram of the structure of a charging gun socket with its protective cover closed, as disclosed in the embodiments of this application.

[0025] Figure 3 This is a schematic diagram illustrating the surface structure of the damping and locking block in the embodiments of this application.

[0026] Figure 4 This is a schematic diagram in other embodiments illustrating the connection relationship between the locking block and the protective cover when the second elastic element is a spring and the first elastic element is a torsion spring.

[0027] Figure 5 This is a schematic diagram of the charging gun socket in another embodiment, illustrating the structure of the charging gun socket when the protective cover is slidably connected to the surface of the socket body.

[0028] Figure 6 It is used to embody Figure 1 An enlarged schematic diagram of the structure at point A in the middle.

[0029] Explanation of reference numerals in the attached drawings: 1. Socket body; 11. Insertion groove; 12. Charging interface; 13. Damping; 2. Protective cover; 21. Main cover plate; 22. Secondary cover plate; 23. First elastic element; 3. Locking element; 31. Locking block; 311. Main locking block; 312. Secondary locking block; 313. Wear-resistant protrusion; 314. Snap-fit ​​notch; 315. Groove; 32. Second elastic element; 4. Linkage element; 41. First extension piece; 42. Second extension piece. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0031] This application discloses a charging gun socket. (Refer to...) Figure 1 and Figure 2 The charging gun socket includes a socket body 1. A recessed groove 11 is formed on the surface of the socket body 1, and a charging interface 12 is embedded in the recessed groove 11. The charging interface 12 disclosed in this embodiment includes at least an AC charging interface 12 and a DC charging interface 12. A protective cover 2 is provided on the surface of the socket body 1, located on one side of the charging interface 12. The protective cover 2 is connected to a first elastic member 23, so that the protective cover 2 is movably connected to the surface of the socket body 1 through the first elastic member 23, and the protective cover 2 can close or open the charging interface 12 during movement relative to the socket body 1.

[0032] Reference Figure 1 and Figure 2 In Embodiment 1 of this application, the first elastic element 23 is specifically a torsion spring. The corresponding protective cover 2 is rotatably connected to the surface of the socket body 1 via a rotating shaft, and the first elastic element 23 is sleeved on the rotating shaft. One end of the first elastic element 23 is fixedly connected to the protective cover 2, and the other end is fixedly connected to the surface of the socket body 1. When the first elastic element 23 is not deformed, the protective cover 2 is located on the side away from the charging interface 12, so that the charging interface 12 is in an open state.

[0033] Reference Figure 1 and Figure 2 In other embodiments, the first elastic element 23 can also be a spring, and the corresponding protective cover 2 is slidably connected to the surface of the socket body 1 through the first elastic element 23. During the sliding process, it slides to the side of the charging interface 12 away from the embedded groove 11 to cover the charging interface 12, or slides to the side away from the charging interface 12 to open the charging interface 12.

[0034] In addition, refer to Figure 3 The socket body 1 is also provided with a damper 13 on its surface. The damper 13 can be a rubber pad and is located on the rotation path of the protective cover 2 when it rotates away from the charging interface 12. The damper 13 is used to abut against the surface of the protective cover 2 during the rotation of the protective cover 2, so that when the protective cover 2 is rotated to open the charging interface 12 by the elastic force of the first elastic element 23, the rotation of the protective cover 2 is hindered, thereby buffering the protective cover 2.

[0035] Reference Figure 1 , Figure 2 and Figure 3 It also includes a locking member 3, which is used to fix the movable position of the protective cover 2 so that the protective cover 2 is fixedly closed on the surface of the charging interface 12; or to release the fixation of the protective cover 2, thereby allowing the protective cover 2 to open the charging interface 12. The locking member 3 specifically includes a locking block 31 and a second elastic member 32. The locking block 31 is movably connected to the socket body 1 through the second elastic member 32. In addition, the surface of the locking block 31 is provided with wear-resistant protrusions 313, and a groove 315 is provided for a person to insert and drive the locking block 31 to move.

[0036] When the second elastic element 32 is not deformed and the protective cover 2 is closed around the charging interface 12, the locking block 31 can press against the side surface of the protective cover 2 away from the charging interface 12 under the elastic force of the second elastic element 32, so as to fix the protective cover 2 closed at the charging interface 12. Specifically, in the embodiments of this application, the second elastic element 32 disclosed is a torsion spring, and the corresponding locking block 31 is rotatably connected to the surface of the socket body 1 through the second elastic element 32. The side wall of the locking block 31 is provided with a snap-fit ​​notch 314. When the second elastic element 32 is not deformed, the snap-fit ​​notch 314 faces the side of the charging interface 12. If the protective cover 2 is closed at the charging interface 12 at this time, the end of the protective cover 2 will be inserted into the snap-fit ​​notch 314, so as to fix the position of the protective cover 2 by using the locking block 31 and prevent the protective cover 2 from moving away from the charging interface 12.

[0037] In other embodiments, refer to Figure 4 The second elastic element 32 can also be a spring. The corresponding locking block 31 is slidably connected to the surface of the socket body 1 through the second elastic element 32. In this case, if the first elastic element 23 is a torsion spring, that is, the protective cover 2 is rotatably connected to the surface of the socket body 1, the locking notch 314 can achieve the locking block 31 to prevent the protective cover 2 from rotating, so that the protective cover 2 is fixedly closed at the charging interface 12.

[0038] In another embodiment, referring to... Figure 5 The protective cover 2 is slidably connected to the surface of the socket body 1 via the first elastic element 23 (spring), and the locking block 31 is connected via the second elastic element 32 (torsion spring or spring). Figure 3 When the spring is movably connected to the surface of the socket body 1, the locking block 31 is located on one side of the sliding direction of the protective cover 2, and the surface of the protective cover 2 is provided with a protrusion for insertion into the snap-fit ​​notch 314. After the protective cover 2 slides to the surface of the charging interface 12 to cover the charging interface 12, the movement of the locking block 31 causes the protrusion to be inserted into the snap-fit ​​notch 314, thereby restricting the sliding of the protective cover 2.

[0039] In addition, refer to Figure 1 and Figure 6 In this application, the protective cover 2 and the locking block 31 are respectively set to correspond one-to-one with the charging interface 12. Since the charging interface 12 in this embodiment is specifically an AC charging interface 12 and a DC charging interface 12, this application further uses the protective cover 2 used to cover the surface of the AC charging interface 12 as the secondary cover plate 22 and the protective cover 2 used to cover the surface of the DC charging interface 12 as the primary cover plate 21. Correspondingly, the locking block 31 is divided into a primary locking block 311 corresponding to the primary cover plate 21 and a secondary locking block 312 corresponding to the secondary cover plate 22.

[0040] It also includes a linkage 4, which includes a first extension piece 41 and a second extension piece 42. The first extension piece 41 is disposed on the side wall of the locking block 312 and is located on the side of the main locking block 311 away from the charging interface 12. The second extension piece 42 is disposed on the cover plate 22 and is located on the side of the main cover plate 21 away from the charging interface 12. When a person manually drives the main locking block 311 to rotate away from the charging interface 12, so that the main cover plate 21 disengages from the latching notch 314, during this rotation, the main locking block 311 will abut against the first extension piece 41, and drive the first extension piece 41 and the secondary locking block 312 to rotate away from the charging interface 12 together. This causes the secondary locking block 312 to release its pressure on the secondary cover plate 22, and then both the main cover plate 21 and the secondary cover plate 22 will rotate away from the charging interface 12 under the elastic force of the first elastic member 23, opening the charging interface 12. Since the main cover plate 21 disengages from the latching notch 314 first compared to the secondary cover plate 22, the main cover plate 21 will abut against the second extension piece 42 during the rotation, and under the action of the second extension piece 42, it will further help the secondary cover plate 22 rotate away from the charging interface 12, accelerating the opening process of the charging interface 12.

[0041] The implementation principle of a charging gun socket disclosed in this application is as follows: When a DC charging interface needs to be connected and the AC charging interface 12 is part of the DC charging interface 12, the main locking block 311 is rotated by hand, releasing the main cover plate 21. At the same time, under the action of the first extension piece 41 and the second extension piece 42, the secondary locking block 312 will also rotate and release the secondary cover plate 22, thus opening the DC charging interface 12. When only the AC charging interface 12 needs to be connected, the secondary locking block 312 is rotated by hand to release the secondary cover plate 22. At this time, the first extension piece 41 and the second extension piece 42 will not interfere with the main locking block 311 and the main cover plate 21. Therefore, the main cover plate 21 will remain closed to the corresponding charging interface 12, only opening the AC charging interface 12. Ultimately, this achieves optimized protection of the internal charging interface 12 of the charging socket while ensuring normal use of the charging socket.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A charging gun socket, comprising a socket body, characterized in that: It also includes protective covers and locking components disposed on the socket body. The protective covers are disposed one-to-one with the charging interfaces on the socket body for electrical connection with the charging gun. The locking components are used to cover each protective cover around the corresponding charging interface. It also includes a linkage component, which is used to assemble or separate all the protective covers, so that when all the protective covers are assembled, all the protective covers open and close together with the driving of the locking components, and when all the protective covers are separated by the linkage component, the locking components can only drive one protective cover at a time.

2. The charging gun socket according to claim 1, characterized in that: The protective cover is connected to a first elastic element. The protective cover is movably connected to the socket body through the first elastic element. The protective cover can close or open the corresponding charging interface during the movement relative to the socket body. When the first elastic element is not deformed, the protective cover is located on the side away from the corresponding charging interface under the elastic force of the first elastic element, so that the corresponding charging interface is open.

3. The charging gun socket according to claim 1, characterized in that: The locking element includes a second elastic element and a locking block that corresponds to the protective cover. The locking block is movably connected to the socket body through the second elastic element. When the second elastic element is not deformed, the locking block can abut against the surface of the protective cover so that the protective cover is abutted against by the locking block and covers the periphery of the corresponding charging interface.

4. The charging gun socket according to claim 3, characterized in that: The locking block is divided into a main locking block and a secondary locking block. The linkage includes a first extension piece disposed on the side wall of the secondary locking block. The first extension piece is located on the side of the main locking block away from the protective block. When the main locking block moves away from the corresponding protective cover to disengage from the corresponding protective cover and open the corresponding charging interface, the first extension piece is located on the movement path of the main locking block. It is used to engage with the main locking block and move away from the protective cover along with the main locking block due to the contact of the main locking block, thereby driving the secondary locking block to move and release the corresponding protective cover.

5. The charging gun socket according to claim 4, characterized in that: The protective cover is divided into a main cover plate corresponding to the main locking block and a secondary cover plate corresponding to the secondary locking block. The linkage also includes a second extension piece disposed on the side wall of the secondary cover plate. The second extension piece is located on the side of the main cover plate away from the charging interface. When the main locking block and the secondary locking block move together away from the protective cover, the main cover plate disengages from the main locking block and moves away from the charging interface. At this time, the second extension piece is located on the movement path of the main cover plate. The second extension piece is used to overlap with the main cover plate and is resisted by the main cover plate, moving together with the main cover plate away from the charging interface, thereby driving the secondary cover plate to move away from the corresponding charging interface.

6. The charging gun socket according to claim 3, characterized in that: The surface of the locking block is provided with wear-resistant protrusions.

7. The charging gun socket according to claim 3, characterized in that: The surface of the locking block is provided with a groove for a person to insert and drive the locking block to move.

8. The charging gun socket according to claim 1, characterized in that: The socket body surface is provided with damping, the damping is located on the movement path of the protective cover when it moves away from the corresponding charging interface, and the damping is used to abut against the protective cover during the movement of the protective cover away from the charging interface.