Shared electric vehicle battery anti-theft device

By using limit components and insert slots, combined with spring locking, the problem of easy displacement and theft of shared electric vehicle batteries during use is solved, achieving a stable connection of the battery and timely alarm, thus improving anti-theft performance and ease of operation.

CN224131198UActive Publication Date: 2026-04-17GUANGZHOU DRAGONFLY TRAVEL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGZHOU DRAGONFLY TRAVEL TECH CO LTD
Filing Date
2025-04-08
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing anti-theft devices for shared electric vehicle batteries are not easy to protect the battery itself when removed without force, are prone to displacement, and are cumbersome to use, making them difficult to effectively prevent theft.

Method used

It employs a limit component and insert slot design, combined with spring locking, to achieve automatic locking and secure connection of the battery, and to issue an alarm when the battery moves abnormally.

Benefits of technology

It improves the anti-theft performance and stability of the battery, simplifies the process of placing and removing the battery, ensures that the battery is not easily displaced during use and will promptly trigger an alarm, thus reducing the risk of theft.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of shared electric vehicles, and discloses a shared electric vehicle battery anti-theft device which comprises a protection box, a top cover matched with the protection box and a battery body located in the protection box and the top cover, and a limiting frame which is the same as the battery body in size and used for limiting is fixedly installed on the inner surface of the protection box. An extension frame with the same size as the battery body is fixedly mounted at one end, close to the battery body, of the top cover, a clamping groove is formed in one surface, far away from the center line, of the extension frame, a through groove is formed in one end, close to the clamping groove, of the protection box, and a limiting assembly is arranged at one end, close to the clamping groove, of the protection box. According to the battery anti-theft device for the shared electric vehicle, spring locking of the limiting assembly is combined with positioning design of the inserting strip and the inserting groove, the anti-theft performance of the device is greatly enhanced, and when the battery is placed, unlocking is not needed, automatic locking can be achieved, so that the overall practicability is improved, and the battery anti-theft device is convenient to popularize and use.
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Description

Technical Field

[0001] This utility model relates to the field of shared electric vehicle technology, specifically to an anti-theft device for shared electric vehicle batteries. Background Technology

[0002] Shared electric bikes are a type of transportation that is unlocked by scanning a code and shared in a cyclical manner. Shared electric bicycles and shared electric cars have emerged, which is a result of the sharing economy in the new era. Among shared electric bikes, the battery is a very important and valuable part, and it is also the part that is often stolen by criminals. Criminals often use violent means to steal the battery, so anti-theft devices for shared electric bikes are needed.

[0003] Chinese Utility Model Patent Publication No. CN 214451474 U discloses a shared electric vehicle battery anti-theft device. This device requires opening the battery compartment cover to remove the battery without forced removal. After the cover is opened, the first and second ear plates separate, preventing the pressure block from closing the push-button spring switch. At this point, the alarm inside the data box immediately activates, deterring thieves and reducing theft. However, this shared electric vehicle battery anti-theft device does not effectively protect the battery itself, making it prone to displacement. Furthermore, it does not automatically lock when the battery is placed, resulting in cumbersome usage and hindering widespread adoption. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide an anti-theft device for shared electric vehicle batteries, which can effectively solve the problems in the prior art.

[0005] The technical solution adopted by this utility model is: a shared electric vehicle battery anti-theft device, including a protective box and a top cover adapted to the protective box, and a battery body located inside the protective box and the top cover. A limiting frame of the same size as the battery body is fixedly installed on the inner surface of the protective box for limiting the position. An extension frame of the same size as the battery body is fixedly installed on one end of the top cover near the battery body. A slot is opened on the side of the extension frame away from the center line. A through groove is opened on one end of the protective box near the slot. A limiting component is provided on one end of the protective box near the slot.

[0006] The limiting component includes a fixing plate that is fixedly installed with the protective box. A sliding rod is slidably connected to the inner surface of the fixing plate. A limiting strip with a "triangular" cross-section is fixedly installed at one end of the sliding rod near the battery body. The limiting strip is adapted to the slot.

[0007] Preferably, one end of the fixing plate is provided with a sliding groove, and the sliding groove is slidably connected to the sliding rod.

[0008] Through the above technical solution, the design of the slide groove can guide the slide rod, so that the slide rod will not deviate or shake during the movement. When the limiting component is operated, the slide rod can slide stably along the slide groove, ensuring that the limiting strip accurately engages or disengages with the slot.

[0009] Preferably, a movable sleeve is fixedly installed at one end of the limiting strip near the fixed plate, and a sliding sleeve is fixedly installed at one end of the fixed plate near the limiting strip. A spring is provided between the movable sleeve and the sliding sleeve, which is fixedly installed with the fixed plate and the limiting strip.

[0010] With the above technical solution, the two ends of the spring are connected to the movable sleeve and the sliding sleeve respectively. In the natural state, the spring force pushes the limiting strip into the slot, which firmly locks the top cover and the protective box to prevent the battery body from being stolen. When it is necessary to open the device, the external force pulls the slide bar to make the limiting strip disengage from the slot, which can unlock the device. In addition, the triangular structure of the limiting strip can automatically push the limiting strip when the battery is inserted, which can achieve automatic locking.

[0011] Preferably, the protective box has ventilation grooves at both ends away from the center line and close to the limiting frame, and a slot is provided at the end of the protective box away from the limiting frame. A strip is fixedly installed at the end of the top cover close to the extension frame, and the strip and the slot are plugged in.

[0012] Through the above technical solution, the air groove ensures air circulation inside the protective box, effectively preventing the battery body from being affected by heat accumulation during charging and discharging. The insertion and installation of the strip and slot provides initial positioning for the connection between the top cover and the protective box. With the help of the limiting component, the stability of the connection between the top cover and the protective box is further enhanced, and the anti-theft performance of the battery body is improved.

[0013] Preferably, an alarm is fixedly installed at one end of the battery body, a groove is provided at the end of the extension frame near the alarm, ear seats are fixedly installed at both ends of the alarm away from the center line, and positioning posts are fixedly installed through the outer surface of the ear seats.

[0014] Through the above technical solution, the groove provides installation space for the alarm, allowing it to be securely installed inside the top cover and protective box. When forced unlocking occurs, or the battery body is moved abnormally or stolen, it can promptly sound an alarm to remind the user, greatly improving the security of the battery body.

[0015] Preferably, the slots and inserts are provided in two identical sets, with two identical slots and inserts in each set, and the two sets of slots and inserts are symmetrically distributed about the center line of the protective box.

[0016] With the above technical solution, the two sets of slots and inserts are symmetrically distributed, which not only enhances the stability of the connection between the top cover and the protective box, allowing the top cover to fit tightly with the protective box in all directions and preventing shaking or loosening due to unstable connection, but also makes the device more convenient to install and disassemble, improving operating efficiency.

[0017] Preferably, a charging port is provided at one end of the battery body near the top cover, and a handle is rotatably installed at the same end of the battery body near the top cover.

[0018] The above technical solution allows for convenient charging of the battery body via the charging port, meeting the needs of shared electric vehicles. The rotating handle facilitates the handling and installation of the battery body by staff, reducing their workload, improving work efficiency, and also reducing the risk of damage to the battery body due to improper handling.

[0019] Compared with the prior art, this utility model provides an anti-theft device for shared electric vehicle batteries, which has the following beneficial effects:

[0020] 1. The anti-theft device for shared electric vehicle batteries combines the spring locking of the limit component with the positioning design of the insert and slot, which greatly enhances the anti-theft performance of the device. Moreover, when the battery is placed, it can be automatically locked without unlocking, thereby improving the overall practicality and making it easy to promote and use.

[0021] 2. The anti-theft device for the shared electric vehicle battery, through the design of the limiting frame and the extension frame, can limit the bottom and top of the battery body, which can prevent the battery from shifting easily during use and improve the overall stability.

[0022] 3. The anti-theft device for the shared electric vehicle battery has a recessed groove that provides installation space for the alarm, allowing it to be securely installed inside the top cover and protective box. When forced unlocking occurs, or the battery body moves abnormally or is stolen, it can promptly sound an alarm. At the same time, its location at the bottom of the battery makes it difficult for the perpetrator to notice the alarm when it is stolen, allowing it to sound an alarm in a timely manner. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a schematic diagram of the disassembled structure of this utility model. Figure 1

[0025] Figure 3 This is a schematic cross-sectional view of the present invention.

[0026] Figure 4 This is a schematic diagram of the disassembled structure of this utility model. Figure 2 ;

[0027] Figure 5 This is a schematic diagram showing the disassembled structure of the protective box and top cover of this utility model;

[0028] Figure 6 This is a three-dimensional structural diagram of the limiting component of this utility model.

[0029] The components include: 1. Protective box; 2. Ventilation groove; 3. Limiting frame; 4. Slot; 5. Through groove; 6. Limiting component; 601. Fixing plate; 602. Slide groove; 603. Slide rod; 604. Limiting strip; 605. Moving sleeve; 606. Sliding sleeve; 607. Spring; 7. Battery body; 8. Alarm; 9. Charging port; 10. Top cover; 11. Card slot; 12. Insert strip; 13. Extension frame; 14. Groove; 15. Handle; 16. Ear seat; 17. Positioning post. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Example 1: As Figure 1-6 As shown, the present invention provides a shared electric vehicle battery anti-theft device, including a protective box 1 and a top cover 10 adapted to the protective box 1, and a battery body 7 located inside the protective box 1 and the top cover 10. A limiting frame 3 of the same size as the battery body 7 is fixedly installed on the inner surface of the protective box 1 for limiting the position. An extension frame 13 of the same size as the battery body 7 is fixedly installed on the end of the top cover 10 near the battery body 7. A slot 11 is provided on the side of the extension frame 13 away from the center line. A through groove 5 is provided on the end of the protective box 1 near the slot 11. A limiting component 6 is provided on the end of the protective box 1 near the slot 11.

[0032] The limiting component 6 includes a fixing plate 601 that is fixedly installed with the protective box 1. A slide rod 603 is slidably connected to the inner surface of the fixing plate 601. A limiting strip 604 with a "triangular" cross-section is fixedly installed at one end of the slide rod 603 near the battery body 7. The limiting strip 604 is adapted to the slot 11.

[0033] Specifically, a groove 602 is provided at one end of the fixed plate 601. The groove 602 is slidably connected to the slide rod 603. The advantage is that the design of the groove 602 can guide the slide rod 603, so that the slide rod 603 will not deviate or shake during movement. When the limiting component 6 is operated, the slide rod 603 can slide stably along the groove 602, ensuring that the limiting strip 604 accurately engages or disengages from the slot 11.

[0034] Specifically, a movable sleeve 605 is fixedly installed at one end of the limiting strip 604 near the fixed plate 601, and a sliding sleeve 606 is fixedly installed at one end of the fixed plate 601 near the limiting strip 604. A spring 607 is provided between the movable sleeve 605 and the sliding sleeve 606, which is fixedly installed on the fixed plate 601 and the limiting strip 604. The advantage is that the two ends of the spring 607 are connected to the movable sleeve 605 and the sliding sleeve 606 respectively. In the natural state, the elastic force of the spring 607 pushes the limiting strip 604 into the slot 11, which firmly locks the top cover 10 and the protective box 1 to prevent the battery body 7 from being stolen. When it is necessary to open the device, the external force pulls the slide bar 603 to make the limiting strip 604 disengage from the slot 11, which can unlock the device. In addition, the triangular structure of the limiting strip 604 can automatically push the limiting strip 604 when the battery is inserted, which can achieve automatic locking.

[0035] Specifically, ventilation slots 2 are provided at both ends of the protective box 1 that are away from the center line and close to the limiting frame 3. A slot 4 is provided at the end of the protective box 1 that is away from the limiting frame 3. An insert 12 is fixedly installed at the end of the top cover 10 that is close to the extension frame 13. The insert 12 and the slot 4 are plugged in. The advantage is that the ventilation slots 2 ensure air circulation inside the protective box 1, effectively preventing the battery body 7 from being affected by heat accumulation during charging and discharging. The plugging in of the insert 12 and the slot 4 provides initial positioning for the connection between the top cover 10 and the protective box 1. Together with the limiting component 6, it further enhances the stability of the connection between the top cover 10 and the protective box 1 and improves the anti-theft performance of the battery body 7.

[0036] Example 2: Figure 2-6 As shown, this is an improvement on the previous embodiment.

[0037] Specifically, an alarm 8 is fixedly installed at one end of the battery body 7. A groove 14 is provided at the end of the extension frame 13 near the alarm 8. Ear seats 16 are fixedly installed at both ends of the alarm 8 away from the center line. A positioning post 17 is fixedly installed through the outer surface of the ear seat 16. The advantage is that the groove 14 provides installation space for the alarm 8, allowing it to be stably installed inside the top cover 10 and the protective box 1. When forced unlocking occurs, or when the battery body 7 moves abnormally or is stolen, it can promptly sound an alarm to remind the user, greatly improving the security of the battery body 7.

[0038] Specifically, there are two identical sets of slots 4 and inserts 12, with two identical slots 4 and inserts 12 in each set. The two sets of slots 4 and inserts 12 are symmetrically distributed about the center line of the protective box 1. The advantage is that the symmetrical distribution of the two sets of slots 4 and inserts 12 not only enhances the stability of the connection between the top cover 10 and the protective box 1, allowing the top cover 10 to fit tightly with the protective box 1 in all directions, preventing shaking or loosening due to unstable connection, but also makes the device more convenient to install and disassemble, improving operating efficiency.

[0039] Specifically, a charging port 9 is provided at one end of the battery body 7 near the top cover 10, and a handle 15 is rotatably installed at the same end of the battery body 7 near the top cover 10. The advantages are that the charging port 9 facilitates charging of the battery body 7, meeting the needs of shared electric vehicles, and the rotatably installed handle 15 facilitates the handling and installation of the battery body 7 by staff, reducing the labor intensity of staff, improving work efficiency, and also reducing the risk of damage to the battery body 7 due to improper handling.

[0040] Working principle: During use, the battery body 7 is placed into the limiting frame 3 of the protective box 1. The insert 12 of the top cover 10 is inserted into the slot 4 of the protective box 1 for initial positioning. During placement, the battery body 7 pushes the limiting strip 604 to overcome the elastic force of the spring 607 and retract. When the top cover 10 is fully in place, the spring 607 pushes the limiting strip 604 into the slot 11 of the extension frame 13 to achieve automatic locking. When it is necessary to remove the battery body 7, the external force pulls the slide rod 603. The slide rod 603 slides along the slide groove 602 of the fixing plate 601, causing the limiting strip 604 to disengage from the slot 11, thereby opening the top cover 10 and removing the battery body 7. The alarm 8 is installed on the battery body 7. When someone attempts to forcibly unlock or steal the battery, causing the battery body 7 to move abnormally, the alarm 8 will sound an alarm in time. At the same time, the ventilation groove 2 ensures air circulation inside the protective box 1 to prevent the battery body 7 from being affected by heat accumulation.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A battery anti-theft device for shared electric vehicles, comprising a protective box (1) and a top cover (10) adapted to the protective box (1), and a battery body (7) located inside the protective box (1) and the top cover (10), characterized in that: The inner surface of the protective box (1) is fixedly installed with a limiting frame (3) of the same size as the battery body (7) for limiting the position. The top cover (10) is fixedly installed with an extension frame (13) of the same size as the battery body (7) at one end near the battery body (7). The side of the extension frame (13) away from the center line is provided with a slot (11). The protective box (1) is provided with a through groove (5) at one end near the slot (11). The protective box (1) is provided with a limiting component (6) at one end near the slot (11). The limiting component (6) includes a fixing plate (601) that is fixedly installed with the protective box (1). A sliding rod (603) is slidably connected to the inner surface of the fixing plate (601). A limiting strip (604) with a "triangular" cross-section is fixedly installed on one end of the sliding rod (603) near the battery body (7). The limiting strip (604) is adapted to the slot (11).

2. A shared e-scooter battery anti-theft device according to claim 1, wherein: The fixed plate (601) has a sliding groove (602) at one end, and the sliding groove (602) is slidably connected to the sliding rod (603).

3. A shared e-scooter battery theft prevention device according to claim 1, wherein: A movable sleeve (605) is fixedly installed at one end of the limiting strip (604) near the fixed plate (601), and a sliding sleeve (606) is fixedly installed at one end of the fixed plate (601) near the limiting strip (604). A spring (607) is provided between the movable sleeve (605) and the sliding sleeve (606) and is fixedly installed to the fixed plate (601) and the limiting strip (604).

4. A shared e-scooter battery anti-theft device according to claim 1, wherein: Ventilation grooves (2) are provided at both ends of the protective box (1) away from the center line and close to the limiting frame (3). A slot (4) is provided at one end of the protective box (1) away from the limiting frame (3). A plug (12) is fixedly installed at one end of the top cover (10) close to the extension frame (13). The plug (12) and the slot (4) are plugged in.

5. A shared e-scooter battery anti-theft device according to claim 1, wherein: An alarm (8) is fixedly installed at one end of the battery body (7). A groove (14) is provided at one end of the extension frame (13) near the alarm (8). Ear seats (16) are fixedly installed at both ends of the alarm (8) away from the center line. A positioning post (17) is fixedly installed through the outer surface of the ear seat (16).

6. A shared e-scooter battery anti-theft device according to claim 4, wherein: The slots (4) and inserts (12) are provided in two identical sets, and each set of the slots (4) and inserts (12) is provided with two identical ones. The two sets of slots (4) and inserts (12) are symmetrically distributed about the center line of the protective box (1).

7. A shared e-scooter battery anti-theft device according to claim 1, wherein: The battery body (7) is provided with a charging port (9) at one end near the top cover (10), and a handle (15) is rotatably installed at one end of the battery body (7) near the top cover (10).