An electric vehicle automatic connection charging gun
By designing an electric push rod to drive the plug to connect to the socket, and using a sealing ring and isolation plate for protection, the problem of inconvenient charging gun plugging is solved, achieving a convenient, stable and safe charging connection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-04
- Publication Date
- 2026-06-23
AI Technical Summary
Existing electric vehicle charging guns are prone to damage to the connector terminals or unstable connections due to excessive or insufficient force during the plugging process, making them inconvenient to use.
An automatic charging gun for electric vehicles was designed, which uses an electric push rod to drive the plug to dock with the socket, and is protected by a sealing ring and an isolation plate to ensure a stable connection and sealing between the plug and the socket.
It enables convenient and automatic docking of the charging gun, avoids damage to the plug terminals, enhances the stability and sealing of the connection, and protects the safety of the plug.
Smart Images
Figure CN224400788U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of charging gun technology, specifically to an automatic charging gun for electric vehicles. Background Technology
[0002] The charging gun is a core component of the electric vehicle charging system. Its core functions include power transmission, scenario adaptation, and safety assurance. The charging gun structure mainly consists of a power transmission system, a control and guidance circuit, a safety protection system, and a mechanical structure, specifically including core components such as conductive terminals, cables, a control module, a locking mechanism, and a protective shell.
[0003] The process of connecting the charging gun to the charging socket in the car is generally operated by the user. If too much force is used, the pressure between the internal plug terminals and the socket will be too great, which can easily damage the plug terminals. If too little force is used, the connection between the plug terminals and the socket will be unstable.
[0004] Therefore, an automatic charging gun for electric vehicles is needed to solve the above problems. Utility Model Content
[0005] The purpose of this utility model is to provide an automatic charging gun for electric vehicles, so as to solve the problem of inconvenience in plugging in the automatic charging gun for electric vehicles mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic charging gun for electric vehicles, comprising a housing, a docking compartment, and a plug. The docking compartment is installed on the right side of the housing, and an automatic docking assembly is provided inside the docking compartment. The automatic docking assembly includes a plug, a connecting wire, and an electric push rod. The plug is movably installed inside the docking compartment. The connecting wire is installed at the top left side of the plug, and the electric push rod is installed at the bottom left side of the plug. The left side of the electric push rod is fixedly connected to the left side inside the housing.
[0007] As a further technical solution of this utility model, a top compartment is installed at the top of the outer shell, and a handle is installed at the top of the top compartment.
[0008] As a further technical solution of this utility model, a tail groove is provided on the left side of the top of the top compartment, a button is provided inside the tail groove, and a reset spring is installed at the bottom of the button.
[0009] As a further technical solution of this utility model, a connecting rod is fixed to the right side of the button, a positioning shaft is inserted inside the connecting rod, the right side of the connecting rod extends to the outside of the top compartment, and a buckle is fixed to the right side of the connecting rod.
[0010] As a further technical solution of this utility model, an auxiliary groove is provided on the outer wall of the plug, and a sealing ring is installed inside the auxiliary groove.
[0011] As a further technical solution of this utility model, the outer wall of the sealing ring is provided with an installation groove, and a rubber ring is installed inside the installation groove.
[0012] As a further technical solution of this utility model, two sets of mounting grooves are provided on the outer side wall of the sealing ring, and the two sets of mounting grooves are distributed in parallel.
[0013] As a further technical solution of this utility model, a storage groove is provided on the right side of the top of the inner sidewall of the docking compartment, a rotating shaft is movably installed on the left side inside the storage groove, a torsion spring is installed on the outer sidewall of the rotating shaft, and an isolation plate is installed on the right side of the rotating shaft.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting an electric push rod, the plug is movably installed inside the docking compartment. Driven by the electric push rod, as the docking compartment docks with the car socket, the upper buckle locks in place to prevent the charging gun from falling off. At this time, the plug inside the docking compartment is not connected to the socket. By controlling the extension of the electric push rod, the plug can be pushed along the docking compartment to the front end to assist the plug in docking with the car socket, thus realizing the convenience of using the electric vehicle to automatically connect the charging gun.
[0015] By setting a sealing ring, which is installed in an auxiliary groove on the outer wall of the plug, and a rubber ring installed in the mounting groove on the surface, the sealing ring and the rubber ring assist in filling the gap between the plug and the docking compartment to seal this area, reduce the entry of dust and debris, and enhance the sealing performance of the inner side of the docking compartment of the electric vehicle automatic connection charging gun.
[0016] By installing an isolation plate, which is movably installed at the opening inside the docking compartment, and elastically connected with the assistance of a torsion spring, when the charging gun is not connected, the isolation plate can cover the surface of the plug with the assistance of the torsion spring, which can shield the plug terminals on the surface of the plug and prevent foreign objects from directly contacting them, thus strengthening the isolation and protection function of the plug inside the electric vehicle automatic connection charging gun. Attached Figure Description
[0017] Figure 1 This is a frontal cross-sectional view of the present invention.
[0018] Figure 2 This is a side view of the structure of this utility model;
[0019] Figure 3 This is a front view cross-sectional structural diagram of the docking compartment of this utility model;
[0020] Figure 4 For the present utility model Figure 3 A magnified schematic diagram of the structure at point A in the middle.
[0021] In the diagram: 1. Outer shell; 2. Docking compartment; 3. Plug; 4. Connecting cable; 5. Electric push rod; 6. Top compartment; 7. Tail slot; 8. Button; 9. Return spring; 10. Connecting rod; 11. Positioning shaft; 12. Buckle; 13. Handle; 14. Auxiliary slot; 15. Sealing ring; 16. Mounting slot; 17. Rubber ring; 18. Storage slot; 19. Rotating shaft; 20. Torsion spring; 21. Isolation plate. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figure 1-4 This utility model provides an embodiment of an automatic charging gun for electric vehicles, comprising a housing 1, a docking compartment 2, and a plug 3. The docking compartment 2 is installed on the right side of the housing 1. An automatic docking assembly is provided inside the docking compartment 2. The automatic docking assembly includes a plug 3, a connecting wire 4, and an electric push rod 5. The plug 3 is movably installed inside the docking compartment 2. The connecting wire 4 is installed at the top left side of the plug 3. The electric push rod 5 is installed at the bottom left side of the plug 3. The left side of the electric push rod 5 is fixedly connected to the left side inside the housing 1. A top compartment 6 is installed at the top of the housing 1. A tail groove 7 is provided on the left side of the top of the top compartment 6. A button 8 is provided inside the tail groove 7. A return spring 9 is installed at the bottom of the button 8. A connecting rod 10 is fixed on the right side of the button 8. A positioning shaft 11 is inserted inside the connecting rod 10. The right side of the connecting rod 10 extends to the outside of the top compartment 6. A buckle 12 is fixed on the right side of the connecting rod 10. A handle 13 is installed at the top of the top compartment 6.
[0024] Specifically, such as Figure 1 and Figure 3 As shown, in the initial state of use, the plug 3 is located deep inside the docking compartment 2. As the docking compartment 2 docks with the socket and is locked with the assistance of the latch 12, the electric push rod 5 can be activated. During the process of the electric push rod 5 pushing the plug 3 towards the opening of the docking compartment 2, it can assist the plug 3 in completing the docking operation with the socket. Conversely, after charging is completed, the electric push rod 5 can be activated first. The electric push rod 5 drives the plug 3 to reset and move to the deep position inside the docking compartment 2. Then, the latch 12 can be released to separate the docking compartment 2 from the socket.
[0025] The outer side wall of the plug 3 is provided with an auxiliary groove 14, and a sealing ring 15 is installed inside the auxiliary groove 14. The outer side wall of the sealing ring 15 is provided with an installation groove 16. There are two sets of installation grooves 16 on the outer side wall of the sealing ring 15. The two sets of installation grooves 16 are distributed in parallel. A rubber ring 17 is installed inside the installation groove 16.
[0026] Specifically, such as Figure 1 and Figure 4 As shown, during use, the sealing ring 15 cooperates with the two sets of rubber rings 17 on the outside and is located at the connection between the docking chamber 2 and the plug 3. This helps to reduce the gap at this point and reduce the amount of foreign debris entering the interior of the outer shell 1 through this gap.
[0027] A storage slot 18 is provided on the right side of the top of the inner wall of the docking compartment 2. A rotating shaft 19 is movably installed on the left side inside the storage slot 18. A torsion spring 20 is installed on the outer wall of the rotating shaft 19. An isolation plate 21 is installed on the right side of the rotating shaft 19.
[0028] Specifically, such as Figure 1 and Figure 4 As shown, in the initial state of use, the isolation plate 21, with the assistance of the torsion spring 20, covers the surface of the plug 3 to block the plug terminals on the surface of the plug 3 and prevent foreign objects from contacting it. If the plug 3 moves forward and comes into contact with the isolation plate 21, the isolation plate 21 can be pushed to flip and be stored inside the storage slot 18 to prevent it from affecting the normal movement of the plug 3.
[0029] Working principle: During use, plug 3 is located deep inside the docking compartment 2, and the isolation plate 21 covers the surface of plug 3 to shield the wiring terminals on the surface of plug 3, preventing foreign objects from directly contacting the contact terminals on the surface of plug 3 and affecting the normal use of plug 3. When docking compartment 2 is connected to the socket on the car, the latch 12 at the top locks the charging gun to prevent it from falling off. At this time, the electric push rod 5 can be activated. The electric push rod 5 extends and can push plug 3 forward along the inside of docking compartment 2. During this process, when it comes into contact with the isolation plate 21, it can push the isolation plate 21. The plate 21 is flipped and stored inside the storage slot 18 to avoid affecting the normal movement of the plug 3. Once the plug 3 is connected to the socket, the charging operation can be started. After charging is complete, the electric push rod 5 can be activated first. The electric push rod 5 drives the plug 3 to reset and move it to a deep position inside the docking compartment 2. Then, the buckle 12 is released to separate the docking compartment 2 from the socket. After the plug 3 is reset, the isolation plate 21 can be re-covered on the surface of the plug 3 with the assistance of the torsion spring 20. The plug 3 is hot after the charging operation is completed. The isolation plate 21 can prevent contact with the plug 3 and avoid danger.
[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. An automatic charging gun for electric vehicles, comprising a housing (1), a docking compartment (2), and a plug (3), characterized in that: A docking compartment (2) is installed on the right side of the outer shell (1), and an automatic docking assembly is provided inside the docking compartment (2); The automatic docking assembly includes a plug (3), a connecting line (4), and an electric push rod (5). The plug (3) is movably installed inside the docking chamber (2). The connecting line (4) is installed at the top left side of the plug (3). The electric push rod (5) is installed at the bottom left side of the plug (3). The left side of the electric push rod (5) is fixedly connected to the left side inside the outer shell (1).
2. The electric vehicle automatic connection charging gun according to claim 1, characterized in that: The top of the outer shell (1) is fitted with a top compartment (6), and the top of the top compartment (6) is fitted with a handle (13).
3. The electric vehicle automatic connection charging gun according to claim 2, characterized in that: A tail groove (7) is provided on the left side of the top of the top compartment (6), and a button (8) is provided inside the tail groove (7). A reset spring (9) is installed at the bottom of the button (8).
4. The electric vehicle automatic connection charging gun according to claim 3, characterized in that: A connecting rod (10) is fixed to the right side of the button (8). A positioning shaft (11) is inserted inside the connecting rod (10). The right side of the connecting rod (10) extends to the outside of the top compartment (6). A buckle (12) is fixed to the right side of the connecting rod (10).
5. The electric vehicle automatic connection charging gun according to claim 1, characterized in that: The outer wall of the plug (3) is provided with an auxiliary groove (14), and a sealing ring (15) is installed inside the auxiliary groove (14).
6. The electric vehicle automatic connection charging gun according to claim 5, characterized in that: The outer wall of the sealing ring (15) is provided with an installation groove (16), and a rubber ring (17) is installed inside the installation groove (16).
7. The electric vehicle automatic connection charging gun according to claim 6, characterized in that: The mounting groove (16) is provided in two sets on the outer wall of the sealing ring (15), and the two sets of mounting grooves (16) are distributed in parallel.
8. The electric vehicle automatic connection charging gun according to claim 1, characterized in that: A storage slot (18) is provided on the right side of the top of the inner wall of the docking compartment (2). A rotating shaft (19) is movably installed on the left side inside the storage slot (18). A torsion spring (20) is installed on the outer wall of the rotating shaft (19). An isolation plate (21) is installed on the right side of the rotating shaft (19).