Electric gun locking device of charging pile
By adding an indicator light to the charging station's electric gun and using an electromagnetic lock to control the current display of the latch status, the problem of the charging gun latch lacking an unlocking indicator has been solved, achieving intuitive unlocking prompts and convenient charging gun removal operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANXI GUOKE ENERGY SAVING
- Filing Date
- 2025-04-28
- Publication Date
- 2026-04-28
AI Technical Summary
The lack of clear unlocking prompts at the charging gun latch makes it difficult to determine whether the charging gun can be unplugged when multiple people are operating it or when the terminal device is not nearby.
An indicator light is added to the charging station's electric gun. The current flow to the indicator light is controlled by the energization status of the electromagnetic lock, clearly indicating whether the latch is unlocked. Combined with the design of the card plate and electromagnetic lock, an intuitive unlocking prompt is achieved.
The status of the indicator light can be observed to determine whether the electromagnetic lock is unlocked, simplifying the process of removing the charging gun, avoiding repeated confirmations or attempts, and improving the convenience and efficiency of operation.
Smart Images

Figure CN224177668U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of charging pile technology, specifically to an electric gun locking device for a charging pile. Background Technology
[0002] Charging stations are devices that provide electrical energy to electric vehicles. They can be categorized by charging type (AC charging stations and DC charging stations), installation method (pole-mounted and wall-mounted), and location (public charging stations, dedicated charging stations, and private charging stations). A charging gun is the device that connects the charging station to the electric vehicle and is used to transfer electricity from the power source to the vehicle's battery.
[0003] The charging gun includes a handle, cable, national standard nozzle, protective cover, and latch. An electromagnetic lock secures the latch internally, preventing the charging gun from being pulled out once inserted into a vehicle or charging station. The electromagnetic lock also connects to a backend system, automatically unlocking after charging is complete and payment is settled. In existing technology, the electromagnetic lock only unlocks after charging is finished on a terminal device such as a mobile phone or in-vehicle system, allowing the charging gun to be removed from the vehicle or charging station by pressing the latch. However, this process is problematic when two people are operating the device or when the terminal device is not readily available. Before removing the gun, users need to confirm payment has been completed or repeatedly press the latch until it is fully depressed. There is a lack of clear indication that the latch is unlocked and the gun can be removed. Therefore, there is room for improvement in this technology. Utility Model Content
[0004] This invention aims to solve the aforementioned technical problem of the lack of a warning indicator at the charging gun latch, and provides a charging gun locking device for a charging station.
[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a charging pile electric gun locking device, including an outer shell, a handle at the lower end of the outer shell, and a gun head at the upper end of the inner shell; a main cable extends from the lower end of the handle; a corrugated tube is fixedly connected to the lower end of the handle, and the lower end of the corrugated tube is fixedly connected to the outer side of the main cable; further comprising:
[0006] The buckle assembly includes a mounting box, in which a retaining plate is rotatably mounted; one end of the retaining plate extends out of the mounting box and has an ear plate, and the other end has a pressing block; an electromagnetic lock is provided inside the outer housing, and the latch of the electromagnetic lock abuts against the retaining plate.
[0007] The indicator component includes an indicator light mounted on the mounting box, which is connected in parallel to the electromagnetic lock via a wire.
[0008] Furthermore, the grip is provided with several elongated ventilation slots.
[0009] Furthermore, a support rod is provided at the middle of the card plate, and the two ends of the support rod are rotatably connected to the two sides inside the mounting box; a spring is provided at the lower end of the card plate near the pressing block.
[0010] Furthermore, the mounting box is provided with a rectangular groove capable of accommodating the pressing block; the upper end of the pressing block is an arc-shaped surface.
[0011] Furthermore, the gun head is connected to several branch cables, all of which converge into the main cable.
[0012] Furthermore, a groove is provided on one end of the mounting box near the ear plate.
[0013] The advantages of this utility model compared with the prior art are as follows:
[0014] Based on the common locking structure, an indicator light connected to the electromagnetic lock is added. When the electromagnetic lock is powered on, most of the current flows to the electromagnetic lock, and the indicator light does not light up; when the electromagnetic lock is powered off, all the current flows to the indicator light, and the light lights up. Thus, by observing the indicator light, you can see whether the electromagnetic lock has unlocked at the latch. At this time, you can directly remove the charging gun by pressing the latch assembly, without the need for repeated confirmation or attempts. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model.
[0016] Figure 2 This is a schematic diagram of the internal structure of this utility model.
[0017] Figure 3 This is a schematic diagram of the buckle assembly structure of this utility model.
[0018] Figure 4 This is a utility model Figure 2 Enlarged view of point A in the middle.
[0019] As shown in the figure: 1. Outer shell, 2. Grip, 3. Gun head, 4. Main cable, 5. Corrugated pipe, 6. Ventilation slot, 7. Mounting box, 8. Clamping plate, 9. Ear plate, 10. Pressing block, 11. Spring, 12. Electromagnetic lock, 13. Indicator light, 14. Groove. Detailed Implementation
[0020] The present invention will now be described in further detail with reference to the accompanying drawings.
[0021] Example 1, in conjunction with Appendix Figure 1 , 2A charging station electric gun locking device includes an outer shell 1, a handle 2 at the lower end of the outer shell 1, and a gun head 3 at the upper end of the inner shell 1; a main cable 4 extends from the lower end of the handle 2; several branch cables are connected to the gun head 3, and the branch cables all converge into the main cable 4, and current is transmitted through the multiple branch cables and the main cable 4.
[0022] A corrugated tube 5 is fixedly connected to the lower end of the grip 2. The lower end of the corrugated tube 5 is fixedly connected to the outside of the main cable 4. The corrugated tube 5 is made of composite rubber and can protect the joint part of the main cable 4. Several long strip-shaped ventilation slots 6 are provided on the grip 2 for auxiliary heat dissipation inside the outer shell 1.
[0023] Combined with appendix Figure 2 , 3 4. It also includes a buckle assembly; including a mounting box 7, in which a retaining plate 8 is rotatably provided. Specifically, a support rod is provided in the middle of the retaining plate 8, and the two ends of the support rod are rotatably connected to the two sides inside the mounting box 7 respectively; a spring 11 is provided under the retaining plate 8; the retaining plate 8 can be tilted up and reset by the rotatably connected support rod and spring 11.
[0024] In addition, a groove 14 is provided on the mounting box 7 at one end near the ear plate 9 in the following text. The groove 14 can provide space for the card plate 8 to be raised.
[0025] One end of the card plate 8 extends into the mounting box 7 and is provided with an ear plate 9, while the other end is provided with a pressing block 10. The mounting box 7 is provided with a rectangular groove that can accommodate the pressing block 10. The upper end of the pressing block 10 is an arc-shaped surface, which limits the finger when pressing and makes it less likely to slip. The pressing block 10 facilitates the lifting and resetting of the card plate 8.
[0026] Combined with appendix Figure 2 An electromagnetic lock 12 is provided inside the outer shell 1. The locking tongue of the electromagnetic lock 12 abuts against the locking plate 8. When the electromagnetic lock 12 is powered on, the locking tongue abuts against the locking plate 8, preventing it from being pressed down, so that the charging gun cannot be removed from the charging pile or the vehicle. When the settlement is completed, the electromagnetic lock 12 is powered off and the locking tongue is retracted, and the locking plate 8 can be pressed down, so that the ear plate 9 can be removed from the limiting structure on the vehicle or the charging pile.
[0027] Combined with appendix Figure 2 , 3 It also includes a prompting component; including a prompt light 13 on the mounting box 7, which is connected in parallel with the electromagnetic lock 12 via a wire; when the electromagnetic lock 12 is powered on, most of the current flows to the electromagnetic lock, and the prompt light 13 is not lit; when the electromagnetic lock 12 is de-powered, all the current flows to the prompt light 13, and the light is lit; thus, by observing the prompt light 13, one can see whether the electromagnetic lock 12 is unlocked at the latch. At this time, the charging gun can be removed directly by pressing the card plate 8, without the need for repeated confirmation or attempts.
[0028] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.
Claims
1. A charging station's electric gun locking device, comprising an outer shell (1), a handle (2) at the lower end of the outer shell (1), and a gun head (3) at the upper end of the inner shell (1); a main cable (4) extends from the lower end of the handle (2); characterized in that: The lower end of the grip (2) is fixedly provided with a corrugated tube (5), and the lower end of the corrugated tube (5) is fixedly connected to the outside of the main cable (4); it also includes: The buckle assembly includes a mounting box (7), in which a retaining plate (8) is rotatably provided. One end of the retaining plate (8) extends out of the mounting box (7) and is provided with an ear plate (9), and the other end is provided with a pressing block (10). An electromagnetic lock (12) is provided inside the outer shell (1), and the locking tongue of the electromagnetic lock (12) abuts against the retaining plate (8). The indicator component includes an indicator light (13) provided on the mounting box (7), which is connected in parallel with the electromagnetic lock (12) via a wire.
2. The electric gun locking device for a charging pile according to claim 1, characterized in that: The grip (2) is provided with several elongated ventilation slots (6).
3. The electric gun locking device for a charging pile according to claim 1, characterized in that: The card plate (8) is provided with a support rod at the middle end, and the two ends of the support rod are rotatably connected to the two sides inside the mounting box (7); a spring (11) is provided at the lower end of the card plate (8) and near the pressing block (10).
4. The electric gun locking device for a charging pile according to claim 1, characterized in that: The mounting box (7) is provided with a rectangular groove that can accommodate the pressing block (10); the upper end of the pressing block (10) is an arc-shaped surface.
5. The electric gun locking device for a charging pile according to claim 1, characterized in that: The gun head (3) is connected to several branch cables, and all the branch cables are connected to the main cable (4).
6. The electric gun locking device for a charging pile according to claim 1, characterized in that: The mounting box (7) has a groove (14) at one end near the ear plate (9).