A charging gun

By using a combination of plug-in and snap-fit ​​connections, the problem of time-consuming and labor-intensive fixing and disassembling of the charging gun head structure and electronic lock is solved, enabling a convenient installation and disassembly process.

CN224537480UActive Publication Date: 2026-07-21PHOENIX CONTACT (NANJING) NEW ENERGY VEHICLE TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
PHOENIX CONTACT (NANJING) NEW ENERGY VEHICLE TECH CO LTD
Filing Date
2025-07-17
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

In existing charging guns, the process of fixing and disassembling the gun head structure and electronic lock is time-consuming and labor-intensive, resulting in inconvenience in installation and disassembly.

Method used

The gun head structure and the electronic lock are fixed by a combination of plug-in and snap-fit ​​connection, through the snap-fit ​​connection between the first connecting structure and the first mating part, and the plug-fit connection between the second connecting structure and the second mating part.

Benefits of technology

It simplifies the installation and disassembly process, improving ease of operation and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to the charging technical field and provides a charging gun which comprises an electronic lock, at least one first connecting structure, at least one second connecting structure and a gun head structure, the gun head structure is provided with a first matching piece and a second matching piece, the electronic lock is connected with the first matching piece through clamping connection of the first connecting structure, and the electronic lock is connected with the second matching piece through plug-in connection of the second connecting structure, the fixing between the gun head structure and the electronic lock is realized, the plug-in and clamping connection mode of the gun head structure and the electronic lock is compared with the screw fixing connection mode, and the mounting steps and the dismounting steps are more convenient.
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Description

Technical Field

[0001] This application relates to charging technology, and more particularly to a charging gun. Background Technology

[0002] The charging gun is a key component connecting an electric vehicle to the charging equipment, responsible for transferring electrical energy from the charging station or power source to the vehicle's battery. The charging gun consists of a gun head structure, cables, and an electronic lock. During assembly, the gun head structure and electronic lock must be secured.

[0003] In existing technologies, the gun head structure and the electronic lock are usually fixed together using multiple screws; however, this method of fixing with multiple screws results in time-consuming and labor-intensive installation and disassembly. Utility Model Content

[0004] This application provides a charging gun to solve the problem of time-consuming and labor-intensive installation and disassembly steps of the gun head structure and electronic lock.

[0005] On one hand, this application provides a charging gun, including:

[0006] Electronic lock;

[0007] At least one first connection structure is disposed on the electronic lock;

[0008] At least one second connection structure is disposed on the electronic lock;

[0009] The gun head structure includes a first mating component and a second mating component. The electronic lock is adapted to be plugged into the second mating component via the second connecting structure, thereby connecting the electronic lock and the gun head structure. The electronic lock is snapped into the first mating component via the first connecting structure, thereby connecting the electronic lock and the gun head structure.

[0010] This application provides a charging gun, wherein a first mating member is provided with a snap-fit ​​hole; a portion of the first connecting structure is adapted to pass through the snap-fit ​​hole and snap-fit ​​with the first mating member.

[0011] This application provides a charging gun, wherein the first connection structure includes:

[0012] A connecting plate, the connecting plate being adapted to be disposed at the bottom of the electronic lock; the connecting plate being arranged in a direction away from the electronic lock;

[0013] A snap-fit ​​protrusion is provided at the end of the connecting plate; the snap-fit ​​protrusion is adapted to pass through the snap-fit ​​hole; the top surface of the snap-fit ​​protrusion forms a snap-fit ​​surface; the snap-fit ​​protrusion is adapted to snap-fit ​​with the snap-fit ​​plate through the snap-fit ​​surface.

[0014] This application provides a charging gun, wherein the cross-section of the buckle protrusion is triangular; the side of the buckle protrusion forms a sliding surface, and the buckle protrusion is adapted to pass through the buckling hole via the sliding surface.

[0015] This application provides a charging gun, wherein there are two first mating parts, and the number of the latching protrusions corresponds to the number of the first mating parts.

[0016] This application provides a charging gun in which the sliding surfaces of the two said latch protrusions are arranged oppositely.

[0017] This application provides a charging gun, wherein a receiving space is formed between the second mating member and the gun head structure, and the second connecting structure is adapted to be inserted into the receiving space.

[0018] This application provides a charging gun, wherein the top surface of the second connecting structure forms an abutment surface, and the second connecting structure is adapted to be connected to the second mating member through the abutment surface; the abutment surface is inclined so that the cross-sectional area of ​​the second connecting structure gradually decreases in the direction toward the receiving space.

[0019] This application provides a charging gun, wherein the side of the second connecting structure away from the abutment surface forms an avoidance slope, and the avoidance slope has the same inclination direction as the abutment surface.

[0020] This application provides a charging gun, wherein the gun head structure has at least one disassembly hole; the disassembly hole is adapted to correspond to a first connector, and the first connector is disassembled from the first mating member through the disassembly hole.

[0021] This application provides a charging gun, including an electronic lock, at least one first connecting structure, at least one second connecting structure, and a gun head structure. The gun head structure is provided with a first mating part and a second mating part. The electronic lock is fixed to the gun head structure and the electronic lock by snap-fitting the first connecting structure to the first mating part and by plugging the second connecting structure to the second mating part. Compared with the connection method of fixing by screws, the installation and disassembly steps of the gun head structure and the electronic lock by plugging and snap-fitting are more convenient. Attached Figure Description

[0022] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0023] Figure 1 A schematic diagram of an electronic lock structure for a charging gun provided in this application;

[0024] Figure 2A first-view schematic diagram of the head structure of a charging gun provided in this application;

[0025] Figure 3 A second-view schematic diagram of the head structure of a charging gun provided in this application;

[0026] Figure 4 This is a schematic diagram of the housing space for a charging gun provided in this application.

[0027] Figure Labels

[0028] 100. Electronic lock;

[0029] 200. First connecting structure; 210. Connecting plate; 220. Snap-fit ​​protrusion; 221. Snap-fit ​​surface; 222. Sliding surface;

[0030] 300. Second connecting structure; 310. Abutting surface; 320. Avoidance slope;

[0031] 400. Gun head structure; 410. Disassembly hole;

[0032] 500, First mating part; 510, Snap-fit ​​hole;

[0033] 600. Second mating component; 610. Accommodation space;

[0034] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0035] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0036] First, let me explain the terms used in this application:

[0037] Charging gun: This generally refers to the device used for charging electric vehicles. Its main function is to transfer electrical energy to the electric vehicle's battery. Charging guns are usually used in conjunction with charging stations and are an important component of the electric vehicle charging system.

[0038] Plug-in connection: Plug-in connection is a common electrical and mechanical connection method, widely used in various electronic devices, electrical systems, and mechanical devices. The main characteristic of plug-in connection is that it enables quick and reliable connection and disconnection through insertion and removal.

[0039] Snap-in connection: Snap-in connection is a common mechanical connection method widely used in various industrial and consumer products. It uses a specific geometry to allow two or more components to be securely connected through a simple insertion and snap-fit ​​action, without the need for additional fasteners.

[0040] In existing technologies, the gun head structure and the electronic lock are usually fixed together using multiple screws; however, this method of fixing with multiple screws results in time-consuming and labor-intensive installation and disassembly.

[0041] To address the aforementioned technical issues, the charging gun provided in this application includes an electronic lock 100, at least one first connecting structure 200, at least one second connecting structure 300, and a gun head structure 400. The gun head structure 400 is provided with a first mating part 500 and a second mating part 600. The electronic lock 100 is fixed to the gun head structure 400 and the electronic lock 100 by a snap-fit ​​connection between the first connecting structure 200 and the first mating part 500, and by a plug-in connection between the second connecting structure 300 and the second mating part 600. Compared to a screw-fixed connection, the installation and disassembly steps are more convenient.

[0042] like Figure 1 and Figure 2 As shown, this embodiment provides a charging gun, including an electronic lock 100, at least one first connecting structure 200, at least one second connecting structure 300, and a gun head structure 400. The first connecting structure 200 and the second connecting structure 300 are disposed on the electronic lock 100. The gun head structure 400 is provided with a first mating member 500 and a second mating member 600. The electronic lock 100 is plugged into the second mating member 600 via the second connecting structure 300, thus connecting the electronic lock 100 and the gun head structure 400. The electronic lock 100 is snapped into the first mating member 500 via the first connecting structure 200, thus connecting the electronic lock 100 and the gun head structure 400. The snap-fit ​​connection of the electronic lock 100 with the first mating member 500 and the plugging connection of the second connecting structure 300 with the second mating member 600 achieves the fixation between the gun head structure 400 and the electronic lock 100.

[0043] like Figure 3As shown, specifically, the first connecting structure 200 and the second connecting structure 300 are both located at the bottom of the electronic lock 100. Conversely, in order to facilitate the connection between the electronic lock 100 and the gun head structure 400, the first mating part 500 and the second mating part 600 are both located at the top of the gun head structure 400, so that the bottom of the electronic lock 100 is connected to the top of the gun head structure 400.

[0044] Furthermore, this embodiment provides a charging gun, wherein a first mating member 500 is provided with a snap-fit ​​hole 510, and a portion of the first connecting structure 200 is adapted to pass through the snap-fit ​​hole 510 and snap-fit ​​with the first mating member 500.

[0045] It should be noted that in this embodiment, the first mating component 500 is a snap-fit ​​plate, and a snap-fit ​​hole 510 is provided on the snap-fit ​​plate. After part of the first connecting structure 200 passes through the snap-fit ​​hole 510, the first connecting structure 200 passing through the snap-fit ​​hole 510 snaps with the snap-fit ​​plate, thereby realizing the snap-fit ​​form between the first mating component 500 and the first connecting structure 200.

[0046] Specifically, the first connecting structure 200 includes a connecting plate 210 and a snap-fit ​​protrusion 220. The connecting plate 210 is adapted to be disposed at the bottom of the electronic lock 100 and extends in a direction away from the electronic lock 100. The snap-fit ​​protrusion 220 is adapted to be disposed at the end of the connecting plate 210 and is adapted to pass through the snap-fit ​​hole 510. The top surface of the snap-fit ​​protrusion 220 forms a snap-fit ​​surface 221, and the snap-fit ​​protrusion 220 is snap-fitted and connected to the first mating member 500 through the snap-fit ​​surface 221.

[0047] Furthermore, the cross-section of the buckle protrusion 220 is triangular, and the side of the buckle protrusion 220 forms a sliding surface 222. The buckle protrusion 220 is adapted to pass through the buckle hole 510 through the sliding surface 222.

[0048] It should be noted that, in this embodiment, the size of the snap-fit ​​hole 510 needs to allow the snap-fit ​​protrusion 220 to pass through. The initial position of the snap-fit ​​protrusion 220 should be offset towards the sliding surface 222. As the initial position of the snap-fit ​​protrusion 220 is offset towards the sliding surface 222, during the process of the snap-fit ​​protrusion 220 passing through the snap-fit ​​hole 510, the snap-fit ​​hole 510 will contact the sliding surface 222 of the snap-fit ​​protrusion 220, and under the guidance of the sliding surface 222, the connecting plate 210 will deform in a direction away from the sliding surface 222. When the snap-fit ​​protrusion 220 has completely passed through the snap-fit ​​hole 510, the snap-fit ​​hole 510 will disengage from the sliding surface 222. At this time, the connecting plate 210 will return to its original shape under its own elasticity. At this time, the snap-fit ​​surface 221 of the snap-fit ​​protrusion 220 will engage with the bottom surface of the first mating member 500, thereby realizing the snap-fit ​​connection between the snap-fit ​​protrusion 220 and the first mating member 500.

[0049] This embodiment provides a charging gun, wherein the snap-fit ​​hole 510 is a square hole. It should be noted that a square hole maximizes the contact area between the first mating member 500 and the snap-fit ​​surface 221 of the snap-fit ​​protrusion 220, thereby improving the snap-fit ​​effect. If the snap-fit ​​hole 510 were a circular hole, the contact area between the first mating member 500 and the snap-fit ​​surface 221 of the snap-fit ​​protrusion 220 would be reduced, resulting in a poor snap-fit ​​effect.

[0050] As an alternative implementation, the snap-fit ​​hole 510 can also be a semi-circular hole.

[0051] In this embodiment, in order to ensure that the connecting plate 210 returns to its original shape under its own elasticity, the material of the connecting plate 210 is selected to be a material with a certain degree of elasticity, such as shape memory metal.

[0052] Furthermore, this embodiment provides a charging gun, wherein the first mating member 500 has two parts, and the number of latching protrusions 220 corresponds to the number of the first mating members 500. The sliding surfaces 222 of the two latching protrusions 220 are arranged oppositely. During the process of disassembling the latching protrusions 220 from the first mating member 500, the latching protrusions 220 need to be translated away from the sliding surfaces 222, so that the latching surfaces 221 of the latching protrusions 220 disengage from the first mating member 500. The opposite arrangement of the sliding surfaces 222 of the two latching protrusions 220 facilitates subsequent disassembly of the first mating member 500 from the latching protrusions 220.

[0053] For example, if the sliding surfaces 222 of the two latching protrusions 220 are set in the same direction, then the same force needs to be applied to the two latching protrusions 220 at the same time. In order to ensure the stability of the gun head structure 400, two opposing forces need to be added at the same time, which is time-consuming and labor-intensive. If the sliding surfaces 222 of the two latching protrusions 220 are set in opposite directions, the forces applied to the two latching protrusions 220 at the same time can cancel each other out, and no additional external force is needed, which saves time and labor.

[0054] It should be noted that, in order to increase the firmness of the snap-fit, the number of the first mating parts 500 can be appropriately increased, such as four or six, and the first mating parts 500 can be arranged in groups of two.

[0055] like Figure 4 As shown, this embodiment provides a charging gun, wherein a receiving space 610 is formed between the second mating member 600 and the gun head structure 400, and the second connecting structure 300 is adapted to be inserted into the receiving space 610; the second connecting structure 300 is specifically a boss member, the protruding part of the boss member is inserted into the receiving space 610 and abuts against the second mating member 600.

[0056] It should be noted that the shape of the accommodating space 610 is the same as the shape of the second connecting structure 300, thereby ensuring the insertion effect.

[0057] Furthermore, this embodiment provides a charging gun, wherein the top surface of the second connecting structure 300 forms an abutment surface 310, and the second connecting structure 300 is adapted to connect with the second mating member 600 via the abutment surface 310. The abutment surface 310 is inclined so that the cross-sectional area of ​​the second connecting structure 300 gradually decreases in the direction towards the receiving space 610. The second connecting structure 300 abuts against the bottom surface of the second mating member 600 via the abutment surface 310, thereby achieving the limiting function of the second mating member 600 on the electronic lock 100.

[0058] It should be noted that during the actual installation of the second connecting structure 300, the electronic lock 100 needs to be tilted first so that the second connecting structure 300 connects with the second mating part 600 on the electronic lock 100. As the second connecting structure 300 enters the receiving space 610, the first connecting part on the electronic lock 100 moves toward the first mating part 500. When the second connecting structure 300 is fully inside the receiving space 610, the first connecting part also connects with the first mating part 500. The protruding part of the boss is designed to gradually decrease in size, which makes it easier for the boss to enter the receiving space 610.

[0059] Furthermore, this embodiment provides a charging gun in which the side of the second connecting structure 300 away from the contact surface 310 forms an avoidance slope 320, and the avoidance slope 320 has the same inclination direction as the contact surface.

[0060] It should be noted that during the disassembly of the second connecting structure 300 and the second mating part 600, a clearance ramp 320 is provided to avoid conflict between the second connecting structure 300 and other structures on the gun head structure 400. If the second connecting structure 300 conflicts with other structures on the gun head structure 400, the second connecting structure 300 will also disengage from the other structures on the gun head structure 400 through the clearance ramp 320, increasing the fault tolerance rate during the disassembly process. Furthermore, by providing the clearance ramp 320, there is no need to worry about the second connecting structure 300 causing damage to the gun head structure 400 during the disassembly process, thus increasing the disassembly efficiency.

[0061] In this embodiment, there are two of each of the second connecting structure 300 and the second mating component 600. In order to increase the stability of the connection between the electronic lock 100 and the gun head structure 400, the number of the second connecting structure 300 and the second mating component 600 can be appropriately increased.

[0062] Specifically, this embodiment provides a charging gun, wherein the gun head structure 400 is provided with at least one disassembly hole 410, the disassembly hole 410 is adapted to correspond to the first connecting structure 200, and the first connecting member is disassembled from the first mating member 500 through the disassembly hole 410.

[0063] It should be noted that the number of disassembly holes 410 corresponds to the number of first connecting structures 200. By providing disassembly holes 410 on the gun head structure 400, and disassembly holes 410 corresponding to connecting plates 210, part of the connecting plates 210 is exposed so that tools can pass through the disassembly holes 410 to release the latching protrusion 220 from the first mating part 500.

[0064] When it is necessary to separate the buckle protrusion 220 from the first mating part 500, a hard object such as a screwdriver is passed through the disassembly hole 410 and abuts against the connecting plate 210, causing the connecting plate 210 to deform so that the buckle protrusion 220 and the first mating part 500 disengage from each other, thereby eliminating the snapping effect between the buckle protrusion 220 and the first mating part 500. The disassembly hole 410 makes the disassembly steps of the first connecting part and the first mating part 500 more convenient.

[0065] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the utility models disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0066] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A charging gun, characterized in that, include: Electronic lock (100); At least one first connection structure (200) is disposed on the electronic lock (100); At least one second connection structure (300) is disposed on the electronic lock (100); A gun head structure (400) is provided with a first mating part (500) and a second mating part (600); the electronic lock (100) is adapted to be plugged into the second mating part (600) through the second connecting structure (300) so that the electronic lock (100) and the gun head structure (400) are connected; the electronic lock (100) is snapped into the first mating part (500) through the first connecting structure (200) so that the electronic lock (100) and the gun head structure (400) are connected.

2. The charging gun according to claim 1, characterized in that, The first mating member (500) is provided with a snap-fit ​​hole (510); a portion of the first connecting structure (200) is adapted to pass through the snap-fit ​​hole (510) and snap-fit ​​with the first mating member (500).

3. The charging gun according to claim 2, characterized in that, The first connection structure (200) includes: A connecting plate (210) is adapted to be disposed at the bottom of the electronic lock (100); the connecting plate (210) extends in a direction away from the electronic lock (100); A snap-fit ​​protrusion (220) is adapted to be disposed at the end of the connecting plate (210); the snap-fit ​​protrusion (220) is adapted to pass through the snap-fit ​​hole (510); the top surface of the snap-fit ​​protrusion (220) forms a snap-fit ​​surface (221); the snap-fit ​​protrusion (220) is adapted to snap-fit ​​with the first mating member (500) through the snap-fit ​​surface (221).

4. The charging gun according to claim 3, characterized in that, The cross-section of the buckle protrusion (220) is triangular; the side of the buckle protrusion (220) forms a sliding surface (222), and the buckle protrusion (220) is adapted to pass through the buckle hole (510) through the sliding surface (222).

5. The charging gun according to claim 4, characterized in that, There are two first mating parts (500), and the number of the snap-fit ​​protrusions (220) corresponds to the number of the first mating parts (500).

6. The charging gun according to claim 5, characterized in that, The sliding surfaces (222) of the two said buckle protrusions (220) are arranged oppositely.

7. The charging gun according to any one of claims 1-6, characterized in that, The second mating part (600) and the gun head structure (400) form a receiving space (610), and the second connecting structure (300) is adapted to be inserted into the receiving space (610).

8. The charging gun according to claim 7, characterized in that, The top surface of the second connecting structure (300) forms an abutment surface (310), and the second connecting structure (300) is adapted to be connected to the second mating member (600) through the abutment surface (310); the abutment surface (310) is inclined so that the cross-sectional area of ​​the second connecting structure (300) gradually decreases in the direction toward the receiving space (610).

9. The charging gun according to claim 8, characterized in that, The second connecting structure (300) forms a clearance slope (320) on the side away from the abutment surface (310), and the clearance slope (320) is inclined in the same direction as the abutment surface (310).

10. The charging gun according to any one of claims 1-6, characterized in that, The gun head structure (400) is provided with at least one disassembly hole (410); the disassembly hole (410) is adapted to correspond to the first connecting structure (200), and the first connecting structure (200) is disassembled from the first mating part (500) through the disassembly hole (410).