A dustproof device for a charging gun spring electromagnetic lock
Patent Information
- Application Number
- CN202522190302.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-16
- Publication Date
- 2026-09-04
- Estimated Expiration
- 2035-10-16
AI Technical Summary
[0002]新能源汽车的充电枪,作为充电过程中最重要的部件之一,不仅连接着电动汽车与充电桩,同时在充电的时候也捆绑着使用者的安全,所以充电枪既要保证具有良好的充电性能,且也要保证在使用过程中能够绝对安全,充电枪的电磁锁通常包括电磁线圈、动铁芯、复位弹簧和锁销,有时一些灰尘、水汽等污染物会随着电磁锁插捎的伸出和收缩进入电磁锁内部导致卡滞、线圈短路或腐蚀,影响充电枪的使用寿命
[0010] Compared with the prior art, this utility model, by extending or retracting the electromagnetic lock insert, drives the sliding plate to slide and the fixed sleeve plate to fold or extend, so that the sliding plate and the fixed sleeve plate form a sealing ring around the electromagnetic lock insert, preventing dust from entering the gap between the electromagnetic lock insert and the electromagnetic lock, causing jamming or corrosion inside the electromagnetic lock, and improving the service life of the charging gun.
Smart Images

Figure CN224721264U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of electromagnetic locks for charging guns, specifically, it relates to a dustproof device for a spring electromagnetic lock for charging guns. Background Technology
[0002] The charging gun for new energy vehicles, as one of the most important components in the charging process, not only connects the electric vehicle to the charging pile, but also ties into the user's safety during charging. Therefore, the charging gun must not only have good charging performance, but also ensure absolute safety during use. The electromagnetic lock of the charging gun usually includes an electromagnetic coil, a moving iron core, a return spring, and a locking pin. Sometimes, some dust, moisture, and other contaminants can enter the electromagnetic lock as the plug extends and retracts, causing jamming, short circuits in the coil, or corrosion, affecting the service life of the charging gun. Utility Model Content
[0003] The purpose of this utility model is to provide a dustproof device for a charging gun spring electromagnetic lock, which can prevent dust from entering the gap between the electromagnetic lock insert and the electromagnetic lock, causing jamming or corrosion inside the electromagnetic lock, and improving the service life of the charging gun.
[0004] To achieve the above objectives, the technical solution provided by a specific embodiment of this utility model is as follows:
[0005] A dustproof device for a charging gun with a spring electromagnetic lock includes a charging gun, an electromagnetic lock insert slidably mounted on the charging gun, a first fixed frame fixedly mounted inside the charging gun, a fixed sleeve plate fixedly mounted on the first fixed frame, a sliding piece slidably mounted on the fixed sleeve plate, a folding sleeve plate rotatably mounted on the sliding piece, the other end of the folding sleeve plate being rotatably connected to the fixed sleeve plate, and a second fixed frame fixedly mounted on the front end of the sliding piece, the second fixed frame being fixedly connected to the electromagnetic lock insert.
[0006] In order to enable the folding sleeve to fold or extend according to the sliding of the electromagnetic lock insert, preferably, the folding sleeve includes a folding piece and a rotating shaft, the folding piece is rotatably connected to the rotating shaft, the foremost rotating shaft is rotatably connected to the sliding piece, and the rearmost rotating shaft is rotatably connected to the fixed sleeve.
[0007] To further secure the fixing plate, a first bolt fixing block is fixedly installed on the side end of the first fixing frame, and the first bolt fixing block is fixedly connected to the charging gun by bolts.
[0008] In order to make the sliding piece slide along with the electromagnetic lock insert, a second bolt fixing block is further installed on the side end of the second fixing frame, and the second bolt fixing block is fixedly connected to the electromagnetic lock insert by bolts.
[0009] For ease of installation, the second bolt fixing block further includes a rotating block, which is rotatably connected to the rotating block, and the rotating block is rotatably connected to the sliding plate.
[0010] Compared with the prior art, this utility model, by extending or retracting the electromagnetic lock insert, drives the sliding plate to slide and the fixed sleeve plate to fold or extend, so that the sliding plate and the fixed sleeve plate form a sealing ring around the electromagnetic lock insert, preventing dust from entering the gap between the electromagnetic lock insert and the electromagnetic lock, causing jamming or corrosion inside the electromagnetic lock, and improving the service life of the charging gun. Attached Figure Description
[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0012] Figure 1 This is a schematic diagram of the charging gun structure of this utility model;
[0013] Figure 2 This is a schematic diagram of the unfolded structure of the folding sleeve of this utility model;
[0014] Figure 3 This is a schematic diagram of the folding structure of the folding sleeve plate of this utility model;
[0015] Figure 4 This is a schematic diagram of the folding sleeve structure of this utility model.
[0016] In the diagram: 1. Charging gun; 2. Electromagnetic lock insert; 3. First fixed frame; 301. First bolt fixing block; 4. Fixed sleeve plate; 5. Sliding piece; 6. Folding sleeve plate; 601. Folding piece; 602. Rotating shaft; 7. Second fixed frame; 701. Second bolt fixing block; 702. Rotating block. Detailed Implementation
[0017] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.
[0018] Example:
[0019] Reference Figure 1-4 As shown, a dustproof device for a charging gun with a spring electromagnetic lock includes a charging gun 1, an electromagnetic lock insert 2 slidably mounted on the charging gun 1, a first fixed frame 3 fixedly mounted inside the charging gun 1, a fixed sleeve plate 4 fixedly mounted on the first fixed frame 3, a sliding piece 5 slidably mounted on the fixed sleeve plate 4, a folding sleeve plate 6 rotatably mounted on the sliding piece 5, the other end of the folding sleeve plate 6 being rotatably connected to the fixed sleeve plate 4, and a second fixed frame 7 fixedly mounted on the front end of the sliding piece 5, the second fixed frame 7 being fixedly connected to the electromagnetic lock insert 2.
[0020] The folding sleeve 6 includes a folding piece 601 and a rotating shaft 602. The folding piece 601 is rotatably connected to the rotating shaft 602. The frontmost rotating shaft 602 is rotatably connected to the sliding piece 5, and the rearmost rotating shaft 602 is rotatably connected to the fixed sleeve 4. When the electromagnetic lock insert 2 extends, the folding sleeve 6 extends accordingly and extends out of the charging gun 1 together with the sliding piece 5 to seal the electromagnetic lock insert 2. When the electromagnetic lock insert 2 retracts, the folding sleeve 6 folds accordingly and is stored in the charging gun 1 together with the sliding piece 5.
[0021] A first bolt fixing block 301 is fixedly installed on the side end of the first fixed frame 3. The first bolt fixing block 301 is fixedly connected to the charging gun 1 by bolts. A second bolt fixing block 701 is installed on the side end of the second fixed frame 7. The second bolt fixing block 701 is fixedly connected to the electromagnetic lock plug 2 by bolts. The second bolt fixing block 701 includes a rotating block 702. The second bolt fixing block 701 and the rotating block 702 are rotatably connected. The rotating block 702 is rotatably connected to the sliding piece 5. The first fixed frame 3 is fixedly installed in the charging gun 1 by the first bolt fixing block 301 and bolts. When the electromagnetic lock plug 2 extends or retracts, the first fixed frame 3 and the fixed sleeve plate 4 will remain fixed. The second fixed frame 7 and the electromagnetic lock plug 2 are fixedly connected by the second bolt fixing block 701. When the electromagnetic lock plug 2 extends or retracts, the second fixed frame 7 and the sliding piece 5 will move together, thereby driving the folding sleeve plate 6 to fold or extend.
[0022] This utility model involves aligning the charging gun 1 with the charging port of a new energy vehicle, activating the electromagnetic lock inside the charging gun 1, causing the electromagnetic lock insert 2 to slide forward, which in turn causes the second fixed frame 7 and the sliding piece 5 to slide out of the charging gun 1. One end of the folding sleeve 6 slides forward out of the charging gun 1 along with the sliding piece 5, while the other end is fixed inside the charging gun 1 with the fixed sleeve 4. The folding sleeve 6 then becomes extended and, together with the sliding piece 5, forms a ring seal around the electromagnetic lock insert 2.
[0023] Once charging is complete, the electromagnetic lock insert 2 is retracted via the electromagnetic lock, causing the second fixed frame 7 and sliding piece 5 to retract back into the charging gun 1. The folding sleeve 6 also folds along with it, completing the sealing operation of the electromagnetic lock insert 2 and preventing dust from entering the gap between the electromagnetic lock insert 2 and the electromagnetic lock.
[0024] 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.
[0025] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A dustproof device for a charging gun with a spring-loaded electromagnetic lock, characterized in that, The device includes a charging gun, on which an electromagnetic lock insert is slidably mounted. A first fixed frame is fixedly mounted inside the charging gun, and a fixed sleeve plate is fixedly mounted on the first fixed frame. A sliding piece is slidably mounted on the fixed sleeve plate, and a folding sleeve plate is rotatably mounted on the sliding piece. The other end of the folding sleeve plate is rotatably connected to the fixed sleeve plate. A second fixed frame is fixedly mounted on the front end of the sliding piece, and the second fixed frame is fixedly connected to the electromagnetic lock insert.
2. The dustproof device for a charging gun spring electromagnetic lock according to claim 1, characterized in that, The folding sleeve includes a folding piece and a rotating shaft. The folding piece is rotatably connected to the rotating shaft. The frontmost rotating shaft is rotatably connected to the sliding piece, and the rearmost rotating shaft is rotatably connected to the fixed sleeve.
3. The dustproof device for a charging gun spring electromagnetic lock according to claim 1, characterized in that, A first bolt fixing block is fixedly installed on the side end of the first fixing frame, and the first bolt fixing block is fixedly connected to the charging gun by bolts.
4. The dustproof device for a charging gun spring electromagnetic lock according to claim 1, characterized in that, A second bolt fixing block is installed on the side end of the second fixing frame, and the second bolt fixing block is fixedly connected to the electromagnetic lock plug by bolts.
5. A dustproof device for a charging gun spring electromagnetic lock according to claim 4, characterized in that, The second bolt fixing block includes a rotating block, the second bolt fixing block is rotatably connected to the rotating block, and the rotating block is rotatably connected to the sliding plate.