Sliding cover type metal bar protection device for new energy automobile
By employing a sliding cover design and an automatic snap-fit structure, the safety and operability issues of the aluminum busbar connection parts in new energy vehicles have been resolved, achieving stable connection and efficient maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-04-07
AI Technical Summary
The aluminum busbar connection points of existing new energy vehicles are easily touched by accident and invaded by dust and moisture. They lack anti-pickup mechanisms, which affects charging reliability and reduces operational efficiency.
It adopts a sliding cover design, which blocks the connecting window. The extension of the cover and the hook-shaped part of the elastic part automatically lock together to prevent foreign objects from entering. The elastic barb prevents it from falling off, and the position indicator window improves the accuracy of operation.
Effectively prevents electric shock hazards, ensures stable electrical connections, eliminates blind spots in protection, improves operational convenience and accuracy, and ensures secure aluminum busbar connections.
Smart Images

Figure CN224097062U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrical equipment protection technology, and in particular to a sliding cover-type metal drain protection device for new energy vehicles. Background Technology
[0002] With the rapid development of new energy vehicle charging technology, the demand for high-power DC charging is increasing. Aluminum busbars are widely used in the conductor structure of charging bases due to their advantages such as lightweight and high conductivity. However, the existing aluminum busbar connection parts mostly adopt an open or simple cover design. The exposed part of the aluminum busbar after bolt fixing is easily touched by accident, which poses a risk of electric shock. Dust, moisture and other foreign objects can easily enter the connection window, leading to increased contact resistance or short circuit. In addition, the traditional shell lacks an anti-pull-out mechanism. The aluminum busbar may loosen and fall off when subjected to external force, affecting the charging reliability. The existing cover lacks intuitive indication of the open and closed status, and maintenance requires repeated confirmation, which is inefficient. Utility Model Content
[0003] The present invention aims to solve the above-mentioned defects and provide a sliding cover-type metal exhaust protection device for new energy vehicles.
[0004] In order to overcome the defects in the background technology, the technical solution adopted by this utility model to solve its technical problem is: a sliding cover metal strip protective device for new energy vehicles, including a protective shell, which has a hollow structure inside, and connecting windows are opened on its front and rear sides, and a sliding cover for opening or closing the connecting windows is slidably arranged on its upper axis; a metal strip, which is inserted into the protective shell through the opening at the lower end of the protective shell.
[0005] Further improvements include a radially provided shielding extension on the protective housing, which mates with the outer contour of the sliding cover to enhance protection of the side of the connecting window.
[0006] Further improvements include an elastic portion connected to the shielding extension, wherein a hook-shaped portion formed on the elastic portion hooks with a hook-shaped portion formed on the inner wall of the sliding cover to keep the sliding cover closed to the connecting window.
[0007] Further improvements include opening an unlocking window on the sliding cover to allow the hook-shaped portion on the elastic part to disengage from the hook-shaped portion on the inner wall of the sliding cover.
[0008] Further improvements include providing a position indicator window on the sliding cover.
[0009] Further improvements include peeling off anti-pull elastic barbs to form on the protective housing, the anti-pull elastic barbs hooking into locking grooves opened on the metal bar so that the metal bar remains inserted into the protective housing.
[0010] The beneficial effects of this utility model are: This design adopts a sliding cover design, which blocks dust, water vapor and other foreign objects by blocking the connecting window, reducing the risk of short circuit and corrosion, ensuring stable electrical connection, meeting high voltage safety standards, preventing electric shock, and the shielding extension works in conjunction with the sliding cover to strengthen side protection and eliminate protection dead angles.
[0011] The elastic hook-shaped part automatically engages with the hook-shaped part on the inner wall of the sliding cover, providing locking force to prevent the sliding cover from opening due to vibration. The anti-pull elastic barb engages with the metal strip locking groove to prevent the metal strip from accidentally coming out and to ensure a firm connection.
[0012] The unlocking window allows for easy pushing of the elastic part to unlock the sliding cover, facilitating the inspection and maintenance of the aluminum strip connection. The position indicator window corresponds to the markings on the protective shell, helping to accurately confirm the position of the sliding cover and reducing operational errors. Attached Figure Description
[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0014] Figure 1 This is an exploded view of this utility model;
[0015] Figure 2 This is the main view of the utility model. Figure 1 ;
[0016] Figure 3 This is an axonometric view of the present invention;
[0017] Figure 4 This is the main view of the utility model. Figure 2 ;
[0018] Figure 5 yes Figure 4 BB section view;
[0019] Figure 6 yes Figure 5 Enlarged view of A in the middle;
[0020] Figure 7 This is the left view of this utility model;
[0021] Figure 8 yes Figure 7 CC section view;
[0022] In the diagram: 1-protective outer casing, 2-sliding cover, 3-metal strip;
[0023] 101-Anti-pull-out elastic barb, 102-Elastic part, 103-Shielding extension part, 104-Connecting window, 105-Unlocking window, 106-Position indicator window;
[0024] 301-Lock slot. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, 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, not all embodiments. All other embodiments obtained by those skilled in the art without creative effort in accordance with the embodiments of the basic utility model are within the scope of protection of this utility model.
[0026] refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a sliding cover-type metal strip protective device for new energy vehicles includes a protective shell 1, which has a hollow internal structure to provide space for the metal strip 3. The size and shape of the connection window 104 are designed to fit common bolt specifications so that the metal strip 3 can be firmly fixed to electrical equipment such as a charging dock by passing bolts through the openings on the metal strip 3. The front and rear sides of the device have connection windows 104 facing each other. The bolts fix the metal strip 3 to the charging dock through the connection windows 104. A sliding cover 2 is axially slidably provided on the device to open or close the connection window 104. The sliding cover 2 forms an effective protective barrier, completely covering the connection window 104, effectively preventing dust, moisture, debris and other foreign objects from entering, reducing safety hazards and preventing people from touching live conductors. The metal strip 3 is inserted into the protective shell 1 through the opening at the lower end of the protective shell 1.
[0027] In this embodiment, a shielding extension 103 is radially provided on the protective shell 1. The shielding extension 103 is matched with the outer contour of the sliding cover 2. When the sliding cover 2 covers the connecting window 104, the shielding extension 103 and the sliding cover 2 are tightly fitted together to form a more robust protective structure, which further enhances the protection capability of the side of the connecting window 104 and effectively prevents foreign objects from entering the area of the connecting window 104 from the side.
[0028] In this embodiment, reference Figure 5 and Figure 6As shown, an elastic part 102 is connected to the shielding extension 103. The elastic part 102 is made of a metal material with high elasticity, good fatigue life, and excellent mechanical properties. The hook-shaped part formed on the elastic part 102 hooks with the hook-shaped part formed on the inner wall of the sliding cover 2 to keep the sliding cover 2 closed to the connecting window 104. When the sliding cover 2 slides to completely cover the connecting window 104, the hook-shaped part on the elastic part 102 automatically and precisely hooks with the hook-shaped part on the inner wall of the sliding cover 2. During the hooking process, the elastic part 102 will generate a certain elastic deformation, thereby generating a reliable locking force, so that the sliding cover 2 can be firmly held in this specific position, continuously and stably shielding the connecting window 104, effectively preventing the sliding cover 2 from accidentally opening due to external force vibration or other factors.
[0029] In this embodiment, an unlocking window 105 is provided on the sliding cover 2. When it is necessary to open the sliding cover 2, the operator can easily push the elastic part 102 by using a screwdriver or other tools or by directly applying external force with his / her fingers through the unlocking window 105. During the application of external force, the elastic part 102 will generate elastic deformation according to the design requirements. When the deformation reaches the predetermined design value, the hook-shaped part on the elastic part 102 will quickly disengage from the hook-shaped part on the inner wall of the sliding cover 2. At this time, the sliding cover 2 immediately returns to the sliding state. The operator can easily slide the sliding cover 2 from the position of covering the connection window 104 along the axial direction to facilitate the inspection, maintenance and other operations of the aluminum busbar connection part.
[0030] In this embodiment, reference Figure 4 The sliding cover 2 is provided with a position indicator window 106. The protective shell 1 has a clear and unique mark on the position corresponding to the observation hole, which is set by laser engraving, printing and other processes. For example, it can use eye-catching different colors or unique and easy-to-identify patterns. When the sliding cover 2 moves to the closed position that completely covers the connecting window 104, the operator does not need to directly touch the sliding cover 2 and the protective shell 1. He can see the corresponding mark on the protective shell 1 clearly and quickly through the indicator window 106. This allows the operator to accurately confirm whether the sliding cover 2 has moved into place, which greatly improves the convenience and accuracy of operation and effectively reduces the possibility of operation errors.
[0031] In this embodiment, reference Figure 7 and Figure 8 The protective shell 1 is peeled off to form an anti-pull elastic barb 101. The anti-pull elastic barb 101 hooks into the locking groove 301 opened on the metal strip 3 so that the metal strip 3 is kept inserted into the protective shell 1. It can effectively increase the resistance when the metal strip 3 is pulled out by external force and play an anti-pull role.
[0032] In this embodiment, the metal busbar 3 is preferably an aluminum busbar or a copper busbar.
[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A sliding cover-type metal exhaust protection device for new energy vehicles, characterized in that, It includes a protective shell (1), which has a hollow structure inside and a connection window (104) opened on its front and rear sides. A sliding cover (2) for opening or closing the connection window (104) is slidably provided on its upper axis; and a metal strip (3), which is inserted into the protective shell (1) through the opening at the lower end of the protective shell (1).
2. The sliding cover type metal exhaust protection device for new energy vehicles as described in claim 1, characterized in that: The protective shell (1) is provided with a radially arranged shielding extension (103), which is matched with the outer contour of the sliding cover (2) to enhance the protection of the side of the connecting window (104).
3. The sliding cover type metal exhaust protection device for new energy vehicles as described in claim 2, characterized in that: An elastic part (102) is connected to the shielding extension (103), and a hook-shaped part formed on the elastic part (102) hooks with a hook-shaped part formed on the inner wall of the sliding cover (2) so that the sliding cover (2) keeps the connecting window (104) closed.
4. The sliding cover type metal exhaust protection device for new energy vehicles as described in claim 1, characterized in that: An unlocking window (105) is provided on the sliding cover (2) so that the hook-shaped part on the elastic part (102) can be disengaged from the hook-shaped part on the inner wall of the sliding cover (2) through the unlocking window (105).
5. A sliding cover-type metal exhaust protection device for new energy vehicles as described in claim 1, characterized in that: A position indicator window (106) is provided on the sliding cover (2).
6. The sliding cover type metal exhaust protection device for new energy vehicles as described in claim 1, characterized in that: The protective shell (1) is peeled to form an anti-pull elastic barb (101), which hooks into the locking groove (301) opened on the metal bar (3) so that the metal bar (3) is kept inserted into the protective shell (1).