A mobile power supply battery anti-falling protection device
By designing a protective casing structure and heat dissipation measures in the power bank, the problems of battery loosening and heat dissipation are solved, achieving drop protection and efficient heat dissipation for the lithium battery, and improving the safety and reliability of the power bank.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN JIANSHUN TECH CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-05-29
AI Technical Summary
Existing portable power banks have a simple structure and lack battery protection. When dropped, the battery is easily loosened or damaged, and heat cannot be dissipated quickly during charging and discharging, posing a safety hazard.
A protective device comprising an upper cover, a lower cover, and a protective shell is designed. The lithium battery is secured using protective pads and a locking mechanism, and heat is dissipated through a silicone thermal sleeve and a heat dissipation groove, preventing the battery from becoming loose or damaged and improving safety.
It effectively protects lithium batteries from impact damage and improves heat dissipation efficiency through thermally conductive materials and heat dissipation structures, reducing the risk of battery bulging and enhancing safety and reliability.
Smart Images

Figure CN224304795U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mobile power bank technology, specifically to a mobile power bank battery drop protection device. Background Technology
[0002] A power bank is a portable charger that integrates power supply and charging functions. When electrical devices are used outdoors, they can be powered by a power bank.
[0003] Current portable power banks have simple internal structures and most lack battery protection. When a portable power bank is dropped, the resulting vibration can easily loosen or damage the internal battery. Furthermore, the heat generated during charging and discharging cannot be quickly dissipated to the outside, which can easily cause the battery to bulge, posing a safety hazard. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a power bank battery drop protection device. It solves the problem that current power banks have simple internal structures and mostly lack battery protection structures. When a power bank is dropped, the resulting vibration can easily loosen or damage the internal battery. Furthermore, the heat generated by the battery during charging and discharging cannot be quickly dissipated to the outside, which can easily cause the battery to bulge, posing a safety issue.
[0005] This utility model provides the following technical solution: a mobile power bank battery anti-drop protection device, including an upper cover, a lower cover, and a protective shell. A lithium battery is movably inserted into the interior of the protective shell. A row of mounting blocks is fixedly installed on the inner top wall of the upper cover and the inner bottom wall of the lower cover. A protective pad is fixedly adhered to the surface of each mounting block. A row of fixing blocks is fixedly installed on the upper and lower surfaces of the protective shell. An installation groove is formed on the surface of each fixing block. The installation groove and the protective pad are interference-fitted. The protective pad is made of rubber.
[0006] A circuit board is fixedly installed on the inner bottom wall of the lower cover. The electrode plate at one end of the lithium battery is electrically connected to the circuit board via a wire. A charging port is provided at one end of the lower cover. The charging port is electrically connected to the lithium battery and the circuit board via a wire. The upper cover is fixedly installed on top of the lower cover by a snap fastener.
[0007] Preferred technical solution 1: A silicone thermal conductive sleeve is fixedly fitted onto the outer surface of the protective shell, and multiple heat dissipation holes are opened on the surfaces of both the silicone thermal conductive sleeve and the protective shell.
[0008] Preferred technical solution 2: Two rows of locking rods are fixedly connected to the surface of each fixing block, and two rows of locking grooves matching the locking rods are opened on the surface of each mounting block.
[0009] Preferred technical solution 3: Limiting plates are fixedly installed on both inner side walls of the lower cover, and both limiting plates and the protective shell are made of polyethylene plastic.
[0010] Preferred technical solution four: One end of the lower cover is provided with a charging port and a power indicator light, and the charging port and the power indicator light are electrically connected to the lithium battery and the circuit board through wires.
[0011] Preferred technical solution five: The tail end of the lower cover is provided with multiple heat dissipation grooves.
[0012] Compared with the prior art, this utility model provides a mobile power bank battery drop protection device with the following advantages: During assembly, the lithium battery is inserted into the protective shell, and then the protective shell is installed on multiple mounting blocks of the lower cover, so that multiple locking rods on the protective shell are inserted into the locking slots, and the protective pads are inserted into the mounting slots, thereby initially positioning the protective shell and the lithium battery. Then, the lithium battery is electrically connected to the circuit board by soldering wires. Then, the upper cover is installed on the lower cover by buckles, and the mounting slots of the mounting blocks of the upper cover are fitted onto the protective pads, and the locking rods are inserted into the locking slots, further pressing and limiting the protective shell and the lithium battery. When the mobile power bank is impacted, the protective pads protect the protective shell and the lithium battery. At the same time, the silicone heat-conducting sleeve and heat dissipation grooves facilitate heat dissipation of the lithium battery. During use, the protective pads can protect the lithium battery from damage when impacted, and at the same time facilitate heat dissipation of the lithium battery. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the front-end structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the tail end structure of this utility model;
[0015] Figure 3 This is an exploded view of the structure of this utility model;
[0016] Figure 4 For the present utility model Figure 3 Enlarged view of the structure of A in the middle.
[0017] In the diagram: 1. Top cover; 2. Bottom cover; 3. Protective shell; 4. Lithium battery; 5. Mounting block; 6. Protective pad; 7. Fixing block; 8. Mounting slot; 9. Circuit board; 10. Charging port; 11. Silicone thermal sleeve; 12. Heat dissipation hole; 13. Locking rod; 14. Locking slot; 15. Limiting plate; 16. Charging socket; 17. Power indicator light; 18. Heat dissipation groove. Detailed Implementation
[0018] Please see Figure 1-4 ,
[0019] Example 1: A mobile power bank battery drop protection device includes an upper cover 1, a lower cover 2, and a protective shell 3. A lithium battery 4 is movably inserted into the interior of the protective shell 3. A row of mounting blocks 5 are fixedly installed on the inner top wall of the upper cover 1 and the inner bottom wall of the lower cover 2. A protective pad 6 is fixedly adhered to the surface of each mounting block 5. A row of fixing blocks 7 are fixedly installed on the upper and lower surfaces of the protective shell 3. An installation groove 8 is opened on the surface of each fixing block 7. The installation groove 8 and the protective pad 6 are interference-fitted. The protective pad 6 is made of rubber.
[0020] A circuit board 9 is fixedly installed on the inner bottom wall of the lower cover 2. The electrode plate at one end of the lithium battery 4 is electrically connected to the circuit board 9 through wires. A charging port 10 is provided at one end of the lower cover 2. The charging port 10 is electrically connected to the lithium battery 4 and the circuit board 9 through wires. The upper cover 1 is fixedly installed on the top of the lower cover 2 by a buckle.
[0021] Example 2: The difference between this example and Example 1 is that a silicone thermal conductive sleeve 11 is fixedly fitted onto the outer surface of the protective shell 3. Both the silicone thermal conductive sleeve 11 and the protective shell 3 have multiple heat dissipation holes 12 to facilitate heat dissipation of the lithium battery 4.
[0022] Example 3: The difference between this example and Example 1 is that each fixing block 7 has two rows of locking rods 13 fixedly connected to its surface, and each mounting block 5 has two rows of slots 14 that match the locking rods 13 on its surface, which facilitates the positioning of the protective shell 3 and the lithium battery 4.
[0023] Example 4: The difference between this example and Example 1 is that, in this example, limiting plates 15 are fixedly installed on both inner side walls of the lower cover 2. Both limiting plates 15 and the protective shell 3 are made of polyethylene plastic to prevent the lithium battery 4 from falling out of the inside of the protective shell 3.
[0024] Example 5: The difference between this example and Example 1 is that one end of the lower cover 2 is provided with a charging port 16 and a power indicator light 17. Both the charging port 16 and the power indicator light 17 are electrically connected to the lithium battery 4 and the circuit board 9 through wires.
[0025] Example 6: The difference between this example and Example 1 is that the lower cover 2 has multiple heat dissipation grooves 18 at its tail end to facilitate heat dissipation of the lithium battery 4.
[0026] In summary, during assembly, the lithium battery drop protection device for this power bank involves inserting the lithium battery 4 inside the protective shell 3, then mounting the protective shell 3 onto multiple mounting blocks 5 on the lower cover 2, inserting multiple locking rods 13 on the protective shell 3 into the slots 14, and simultaneously inserting the protective pad 6 into the mounting groove 8, thus initially positioning the protective shell 3 and the lithium battery 4. Then, the lithium battery is electrically connected to the circuit board 9 via solder wires. Next, the upper cover 1 is mounted onto the lower cover 2 via clips, with the mounting groove 8 of the mounting block 5 on the upper cover 1 fitting onto the protective pad 6, and the locking rods 13 inserted into the slots 14, further securing the protective shell 3 and the lithium battery 4 with fiber reinforcement. When the power bank is impacted, the protective pad 6 protects the protective shell 3 and the lithium battery 4. Simultaneously, the silicone heat-conducting sleeve 11 and the heat dissipation groove 18 facilitate heat dissipation for the lithium battery 4. During use, the protective pad 6 protects the lithium battery 4 from damage upon impact and facilitates heat dissipation for the lithium battery 4.
Claims
1. A drop protection device for a power bank battery, comprising an upper cover (1), a lower cover (2), and a protective shell (3), characterized in that: A lithium battery (4) is movably inserted inside the protective shell (3). A row of mounting blocks (5) is fixedly installed on the inner top wall of the upper cover (1) and the inner bottom wall of the lower cover (2). A protective pad (6) is fixedly adhered to the surface of each mounting block (5). A row of fixing blocks (7) is fixedly installed on the upper and lower surfaces of the protective shell (3). An installation groove (8) is opened on the surface of each fixing block (7). The installation groove (8) and the protective pad (6) are interference-fitted. The protective pad (6) is made of rubber. A circuit board (9) is fixedly installed on the inner bottom wall of the lower cover (2). The electrode plate at one end of the lithium battery (4) is electrically connected to the circuit board (9) through a wire. A charging port (10) is provided at one end of the lower cover (2). The charging port (10) is electrically connected to the lithium battery (4) and the circuit board (9) through a wire. The upper cover (1) is fixedly installed above the lower cover (2) by a buckle.
2. The mobile power bank battery drop protection device according to claim 1, characterized in that: A silicone thermal conductive sleeve (11) is fixedly sleeved on the outer surface of the protective shell (3), and multiple heat dissipation holes (12) are opened on the surfaces of the silicone thermal conductive sleeve (11) and the protective shell (3).
3. The mobile power bank battery drop protection device according to claim 1, characterized in that: Each of the fixed blocks (7) has two rows of locking rods (13) fixedly connected to its surface, and each of the mounting blocks (5) has two rows of locking grooves (14) that match the locking rods (13) on its surface.
4. The mobile power bank battery drop protection device according to claim 1, characterized in that: Limiting plates (15) are fixedly installed on both inner side walls of the lower cover (2), and both limiting plates (15) and the protective shell (3) are made of polyethylene plastic.
5. A mobile power bank battery drop protection device according to claim 1, characterized in that: One end of the lower cover (2) is provided with a charging port (16) and a power indicator light (17). The charging port (16) and the power indicator light (17) are electrically connected to the lithium battery (4) and the circuit board (9) through wires.
6. A mobile power bank battery drop protection device according to claim 1, characterized in that: The lower cover (2) has multiple heat dissipation slots (18) at its tail end.