Charging gun button waterproof structure
By designing a waterproof button structure for the charging gun and using a tight snap-fit connection between the elastomer button and the fixed bracket, the problem of the button freezing in extremely cold, rainy, or snowy weather is solved, achieving waterproof and dustproof effects, ensuring stable operation of the charging gun and extending its service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG SHENGLAN NEW ENERGY TECH CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-06-05
AI Technical Summary
Traditional charging gun buttons are prone to freezing due to water seepage in extremely cold, rainy, or snowy weather, making them unable to be pressed down to achieve charging or unlocking functions. Furthermore, the lack of waterproof and dustproof design increases the risk of malfunction.
Design a waterproof structure for a charging gun button. Through the tight snap-fit connection and compression interference between the elastomer button and the fixed bracket, a fully enclosed waterproof and dustproof barrier is formed to prevent water and dust from seeping in.
It effectively prevents buttons from freezing, protects internal mechanical structures and electrical components, ensures the charging gun works normally in extreme weather conditions, improves reliability and durability, and reduces maintenance costs.
Smart Images

Figure CN224328618U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of charging gun technology, and in particular to a waterproof structure for a charging gun button. Background Technology
[0002] With the popularization of new energy vehicles, the demand for car charging is growing rapidly. In the fiercely competitive domestic market, charging guns are required to have lower costs and more stable performance. As a key locking device for charging guns, the design of the button on the charging gun is crucial to the performance of the charging gun. However, most charging gun mechanical lock buttons on the market currently have serious problems in extremely cold and snowy weather: water can easily seep in from the button gaps, and when the temperature drops sharply, the button will freeze, making it impossible to press down the mechanical lock for charging or unlocking.
[0003] In the prior art, Chinese Patent Application No. 202321708990.5 discloses a charging gun and a charging device. The charging gun includes a housing, a locking assembly, an electromagnetic assembly, and a micro switch. The housing has a mounting cavity. One end of the locking assembly is located in the mounting cavity, and the other end extends out of the mounting cavity and is provided with a locking hook. The electromagnetic assembly includes a pressure plate, an electromagnet, and an elastic element located in the mounting cavity. The pressure plate is connected to the locking assembly, the electromagnet is disposed opposite to the pressure plate, and the elastic element is disposed between the pressure plate and the electromagnet. The micro switch is disposed in the mounting cavity and adjacent to the electromagnet. The electromagnetic assembly has an energized state where the electromagnet attracts the pressure plate and an de-energized state where the pressure plate moves away from the electromagnet. In the energized state, the pressure plate compresses the elastic element to keep the locking hook continuously locked, and the pressure plate triggers the micro switch. In the de-energized state, the elastic element rebounds, pushing the pressure plate away from the electromagnet and the micro switch. The button structure of this charging gun mainly focuses on the working principle of the locking component and the electromagnetic component, as well as the feedback mechanism of the micro switch. However, the button is not designed to be waterproof and dustproof. In extremely cold, rainy, snowy weather or harsh environments, water and dust may seep into the button gaps, which may cause the button to freeze or malfunction, affecting the normal use of the charging gun. On the other hand, due to the lack of waterproof and dustproof design, the internal mechanical structure and electrical components of the charging gun button may be damaged when used in harsh environments, increasing the risk of failure. Utility Model Content
[0004] The purpose of this invention is to solve the technical problem that in extremely cold and snowy weather, the buttons of traditional charging guns freeze due to water seepage, making them unable to be pressed down to achieve charging or unlocking functions. This invention provides a waterproof structure for the charging gun button, designing the button as an enclosed structure. Through a tight snap-fit connection and compression interference design between the elastic button and the fixed bracket and gun shell, a waterproof and dustproof design is achieved for the mechanical lock button of the charging gun, solving the problem of the button freezing and the gun freezing in extremely cold and snowy weather.
[0005] The technical solution adopted by this utility model to achieve the above-mentioned objective is: a waterproof structure for a charging gun button, including a fixed bracket and an elastic button. The elastic button is mounted on the gun shell through the fixed bracket. The elastic button includes a button part and a fixed part connected to each other. The button part protrudes in a direction away from the gun shell. A pressing part is provided at the lower end of the button part. An extension part is provided at the lower end of the fixed part. The extension part and the fixed part enclose a cavity for accommodating the pressing part and providing the pressing part with a space for movement. A mounting groove is provided on the inner circumferential side of the extension part. The fixed bracket is mounted on the elastic button through the mounting groove. A buckle for engaging the gun shell is provided at the lower end of the fixed bracket.
[0006] Furthermore, the fixed bracket includes a frame that mates with the mounting slot of the elastic button. The frame is installed in the mounting slot, and the lower end of the frame is provided with a plurality of limiting posts. The lower end of the extension is provided with a plurality of limiting holes that match the limiting posts, and the limiting posts are inserted into the limiting holes.
[0007] Furthermore, all of the plurality of limiting posts are cylindrical structures.
[0008] Furthermore, the buckle is provided with three buckles, two of which are symmetrically arranged on both sides of the frame and the other buckle is arranged at one end of the frame. The fixing bracket is connected to the gun shell by the three buckles.
[0009] Furthermore, the cross-section of the button portion is arc-shaped.
[0010] Furthermore, the button part, fixing part, pressing part, and extension part are integrally formed structures.
[0011] Furthermore, the elastomer button is a silicone elastomer button or a plastic elastomer button.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] (1) The present invention provides a waterproof structure for a charging gun button. Through the tight snap-fit connection and compression interference design between the elastomer button and the fixed bracket and the gun shell, a solid waterproof and dustproof barrier is formed. The elastomer button, through its fully enclosed design, effectively prevents water and moisture from seeping in, and also effectively prevents the accumulation of dust and impurities. It protects the internal mechanical structure and electrical components of the charging gun from damage, extends the service life of the product, fundamentally avoids the occurrence of button icing, ensures that the charging gun can still work normally in extreme weather conditions, greatly improves the reliability and durability of the product, reduces the frequency of maintenance and replacement of parts, and reduces the user's maintenance costs.
[0014] (2) The present invention provides a waterproof structure for a charging gun button. The button protrudes away from the gun shell, and the cross section of the button is an outwardly convex arc. The elastic button is made of elastic material, so that it can automatically return to its original shape after being pressed and deformed. Users can easily press the button to realize the charging or unlocking function. Moreover, due to the reasonable design of the button structure, the pressing feel is comfortable, which further enhances the user experience and improves the user's trust and satisfaction with the product.
[0015] (3) The present invention provides a waterproof structure for a charging gun button. The fixed bracket is installed in conjunction with the elastic button through multiple limiting posts, which can ensure the stability of the installation between the fixed bracket and the elastic button, thereby ensuring the stable operation of the charging gun. With the continuous expansion of the new energy vehicle market and the increasing demands of consumers for product quality, charging guns with waterproof and dustproof functions will be more popular in the market, which will help enhance the market competitiveness of the product. Attached Figure Description
[0016] Figure 1 The structure of the waterproof button of the charging gun of this utility model Figure 1 .
[0017] Figure 2 The structure of the waterproof button of the charging gun of this utility model Figure 2 .
[0018] Figure 3 This is a structural diagram of the waterproof elastomer button for the charging gun of this utility model.
[0019] Figure 4 The structure of the waterproof structure fixing bracket for the charging gun button of this utility model Figure 1 .
[0020] Figure 5 The structure of the waterproof structure fixing bracket for the charging gun button of this utility model Figure 2 .
[0021] Figure 6 This is a schematic diagram illustrating the application of the waterproof structure for the charging gun button of this utility model.
[0022] In the diagram: 1. Fixed bracket, 11. Frame, 12. Limiting post, 13. Buckle, 2. Elastomer button, 21. Button part, 22. Fixed part, 23. Pressing part, 24. Extension part, 25. Receiving cavity, 26. Mounting groove, 27. Limiting hole, 3. Gun casing. Detailed Implementation
[0023] The present invention will now be described in detail with reference to the accompanying drawings and embodiments, but the present invention is not limited to the specific embodiments.
[0024] like Figure 1-5The waterproof structure of the charging gun button shown includes a fixed bracket 1 and an elastic button 2. The elastic button 2 is mounted on the gun shell 3 through the fixed bracket 1. The elastic button 2 includes a button part 21 and a fixed part 22 connected to each other. The button part 21 protrudes away from the gun shell 3. The cross-section of the button part 21 is an outwardly convex arc shape. A pressing part 23 is provided at the lower end of the button part 21. An extension part 24 is provided at the lower end of the fixed part 22. The extension part 24 and the fixed part 22 enclose a receiving cavity 25 for accommodating the pressing part 23 and providing the pressing part 23 with a space for movement. A mounting groove 26 is provided on the inner circumferential side of the extension part 24. The fixed bracket 1 is mounted on the elastic button 2 through the mounting groove 26. A buckle 13 for engaging the gun shell 3 is provided at the lower end of the fixed bracket 1.
[0025] Preferably, the fixed bracket 1 includes a frame 11 that mates with the mounting groove 26 of the elastic button 2. The frame 11 is installed in the mounting groove 26, and a plurality of limiting posts 12 are provided at the lower end of the frame 11. A plurality of limiting holes 27 that match the limiting posts 12 are provided at the lower end of the extension 24, and the limiting posts 12 are inserted into the limiting holes 27.
[0026] The fixed bracket 1 is installed in conjunction with the elastic button 2 through multiple limiting posts 12, which can ensure the stability of the installation between the fixed bracket 1 and the elastic button 2, thereby ensuring the stable operation of the charging gun.
[0027] Preferably, there are three buckles 13, two of which are symmetrically arranged on both sides of the frame 11, and the other buckle 13 is arranged at one end of the frame 11. The fixing bracket 1 is engaged and connected to the gun shell 3 through the three buckles 13.
[0028] Preferably, the button part 21, the fixing part 22, the pressing part 23 and the extension part 24 are integrally formed.
[0029] Preferably, the elastomer button 2 is a silicone elastomer button or a plastic elastomer button. The elastomer button 2 is made of elastic material, so that it can automatically return to its original shape after being pressed and deformed. Users can easily press the button to realize the charging or unlocking function. Moreover, due to the reasonable button structure design, the pressing feel is comfortable, which further enhances the user experience and improves the user's trust and satisfaction with the product.
[0030] Assembly process and working principle of the waterproof charging gun button structure of this utility model:
[0031] Assemble the fixing bracket 1 into the elastic button 2, ensuring that the fixing bracket 1 is completely enclosed within the elastic button 2, leaving adequate space for the pressing part 23 to move. Press the assembled button assembly into the slot on the gun housing 3. The pressure from the fixing bracket 1's latch 13 causes the elastic button 2 and the gun housing 3 to be tightly pressed together. Figure 6 As shown.
[0032] When the elastic button 2 is pressed, it is stably pressed down under the support of the fixed bracket 1 to realize the charging or unlocking function. Since the fixed bracket 1 and the gun shell 3 are tightly connected by a snap-fit, and the elastic button 2 and the gun shell 3 form a squeezing interference, it effectively prevents water and dust from entering, thus achieving the effect of waterproofing and dustproofing.
[0033] This utility model discloses a waterproof structure for a charging gun button. Through the tight snap-fit connection and compression interference design between the elastomer button and the fixed bracket and gun shell, a solid waterproof and dustproof barrier is formed. The elastomer button, through its fully enclosed design, effectively prevents the infiltration of water and moisture, and also effectively prevents the accumulation of dust and impurities. This protects the internal mechanical structure and electrical components of the charging gun from damage, extends the product's service life, fundamentally avoids button icing, and ensures that the charging gun can still work normally in extreme weather conditions. This greatly improves the product's reliability and durability, reduces the frequency of repairs and parts replacements, and lowers the user's maintenance costs. With the continuous expansion of the new energy vehicle market and the increasing demands of consumers for product quality, charging guns with waterproof and dustproof functions will be more popular in the market, helping to enhance the product's market competitiveness.
[0034] The above description, in conjunction with preferred technical solutions, provides a further detailed explanation of this utility model. It should not be construed that the specific implementation of the utility model is limited to these descriptions. For those skilled in the art, simple deductions and substitutions can be made without departing from the concept of this utility model, and all such modifications and substitutions should be considered within the scope of protection of this utility model.
Claims
1. A waterproof structure for a charging gun button, characterized in that: The device includes a fixed bracket and an elastomeric button. The elastomeric button is mounted on the gun housing via the fixed bracket. The elastomeric button includes a button portion and a fixed portion connected to each other. The button portion protrudes away from the gun housing, and a pressing portion is provided at the lower end of the button portion. An extension portion is provided at the lower end of the fixed portion. The extension portion and the fixed portion enclose a receiving cavity for accommodating the pressing portion and providing space for the pressing portion to move. A mounting groove is provided circumferentially on the inner side of the extension portion. The fixed bracket is mounted on the elastomeric button through the mounting groove. A buckle for engaging the gun housing is provided at the lower end of the fixed bracket.
2. The waterproof structure for a charging gun button according to claim 1, characterized in that: The fixed bracket includes a frame that mates with the mounting slot of the elastic button. The frame is installed in the mounting slot, and the lower end of the frame is provided with a plurality of limiting posts. The lower end of the extension is provided with a plurality of limiting holes that match the limiting posts, and the limiting posts are inserted into the limiting holes.
3. The waterproof structure for a charging gun button according to claim 2, characterized in that: All of the limiting posts are cylindrical structures.
4. The waterproof structure for a charging gun button according to claim 1, characterized in that: The buckle is provided in three parts, with two buckles symmetrically arranged on both sides of the frame and the other buckle arranged at one end of the frame. The fixing bracket is connected to the gun shell by the three buckles.
5. The waterproof structure for a charging gun button according to claim 1, characterized in that: The cross-section of the button part is arc-shaped.
6. The waterproof structure for a charging gun button according to claim 1, characterized in that: The button part, fixing part, pressing part and extension part are integrally formed.
7. A waterproof structure for a charging gun button according to any one of claims 1 to 6, characterized in that: The elastomer button is a silicone elastomer button or a plastic elastomer button.