A mobile power supply battery connecting line limiting structure
By incorporating a connection cable limiting component within the power supply housing, the problem of loose and detached battery connection cables in the power bank is resolved, achieving a stable battery connection, extending the lifespan of the connection cables, and improving safety.
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 power bank battery connection cables lack effective fixing and restraining structures, making them prone to loosening and falling off during use, affecting charging stability and reducing lifespan, and posing safety hazards.
A connection wire limiting assembly, including a limiting connection plate and a fixing cover plate, is installed inside the power supply housing. It is fixed to the top of the battery block by fixing bolts, and wire grooves are set between the battery blocks for limiting and ensuring the stability of the connection wire.
It effectively prevents the connecting wires from loosening and falling off, improves the stability and service life of the connecting wires, reduces safety hazards, and ensures the continuity and safety of charging.
Smart Images

Figure CN224305482U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mobile power technology, specifically a mobile power battery connection cable limiting structure. Background Technology
[0002] With the widespread use of electronic devices, power banks, as portable energy storage devices, have been widely used in daily life and work. When using a power bank to charge devices or itself, the stability and safety of the battery connection cable play a crucial role.
[0003] A search revealed that this utility model, authorized by Chinese Patent Publication No. CN 218124332 U, belongs to the field of portable power bank technology and discloses a portable power bank with a winding connection cable structure. The power bank includes a main body with a top groove on its top. A USB interface is located on one side of the top of the main body near the top groove, and a slot is located on the other side. A card plate is installed inside the slot, and a card rod is installed on one side of the card plate. A mounting bracket is installed at one end of the card rod, and a winding roller is rotatably connected inside the mounting bracket. This utility model winds the charging cable through a storage groove on the winding roller. The card plate and card rod engage with the slot, fixing the winding roller and mounting bracket in the top groove. When the charging cable needs to be removed for individual use, simply pull the mounting bracket to separate it from the slot, allowing the winding roller and charging cable to be removed. This facilitates easy winding and use of the charging cable, greatly reducing the difficulty of using the portable power bank and improving the user experience.
[0004] The power bank in the aforementioned patent still has some shortcomings. Due to the lack of an effective fixing and restraining structure in the actual use of the existing power bank battery connection cable, it is easy for it to loosen or fall off due to external pulling, dragging or accidental contact during use, resulting in charging interruption and affecting the normal use of the device. At the same time, excessive pulling can also damage the internal wires of the connection cable, reduce the service life of the connection cable, and even cause safety hazards such as short circuits. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a power bank battery connection cable restraint structure, which solves the problem that existing power bank battery connection cables lack an effective fixing and restraining structure during actual use. As a result, they are prone to loosening or falling off due to external pulling, dragging, or accidental contact, leading to charging interruption and affecting normal device use. At the same time, excessive pulling can also damage the internal wires of the connection cable, reduce its service life, and even cause safety hazards such as short circuits.
[0006] This utility model provides the following technical solution: a mobile power bank battery connection cable limiting structure, including a power housing, a closed cover at the top of the power housing, a battery mounting compartment on the power housing, a first battery block, a second battery block and a third battery block arranged sequentially in the battery mounting compartment, a positive terminal connector and a negative terminal connector on the first battery block, the second battery block and the third battery block, and a connection cable limiting component arranged in the battery mounting compartment;
[0007] The connecting wire limiting assembly includes symmetrically arranged limiting slots on both sides of the inner wall of the battery mounting compartment. Each limiting slot has a fixing screw hole on its bottom wall. A limiting connecting plate is provided inside the battery mounting compartment. Both ends of the limiting connecting plate are inserted into the limiting slots. Each end of the limiting connecting plate has a connecting insertion hole. Two wire grooves are symmetrically arranged on the limiting connecting plate. One end of the limiting connecting plate has a first wire-passing opening, and the other end has a third wire-passing opening. Second wire-passing openings are symmetrically arranged on both sides of the middle portion of the limiting connecting plate. The negative terminal connectors on the first battery block and the second battery block are connected via a power transmission line. The negative terminal connectors on the second battery block and the third battery block are also connected via the power transmission line. A fixing cover plate is provided on the top of the limiting connecting plate, and each end of the fixing cover plate has a fixing insertion hole.
[0008] Preferred technical solution 1: Each of the fixed insertion holes is equipped with a fixing bolt, and the bottom end of the fixing bolt passes through the connecting insertion hole and is inserted into the fixing screw hole.
[0009] Preferred technical solution 2: An external output line is connected to the positive terminal connector, and the external output line is limited by a limiting block set on the first battery block.
[0010] Preferred technical solution 3: A handle is provided at the top of the closed cover.
[0011] This design makes it easier for users to lift the power supply casing.
[0012] Preferred technical solution four: baffles are provided on both sides of the end of the transmission line near the positive terminal or the negative terminal.
[0013] This solution enables better control of the transmission line.
[0014] Preferred technical solution five: The limiting card block is L-shaped and vertical, and the limiting card block is connected to the first battery block by adhesive bonding.
[0015] This solution enables the external output cable, which is limited by the restrictor block, to bend, thus preventing excessive bending and cracking of the external output cable when it turns.
[0016] Compared with the prior art, the present invention provides a mobile power bank battery connection cable limiting structure, which has the following beneficial effects:
[0017] (1) This utility model provides a battery installation compartment on the power supply housing and a connecting wire limiting component in the battery installation compartment. The limiting connecting plate in the connecting wire limiting component is fixed to the top of the first battery block, the second battery block and the third battery block by a fixing cover plate and fixing bolts, which can play the role of limiting and fixing the battery. The transmission wires connecting the first battery block, the second battery block and the third battery block are effectively limited and fixed by running the wires in the wire groove. This makes the connection between the battery connecting wires more stable, effectively avoids the problem that the connecting wires are easily pulled by external forces and fall off the positive or negative terminal connector, ensures that the connection between each battery is more stable, improves the service life of the connecting wires, and can continuously and stably provide power to the user. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0019] Figure 2 This is a schematic diagram of the internal structure of the power supply housing of this utility model;
[0020] Figure 3 For the present utility model Figure 2 Exploded view of the structure of the connecting line limiting component;
[0021] Figure 4 For the present utility model Figure 3 Enlarged view of the middle limit slot structure;
[0022] Figure 5 For the present utility model Figure 3 Enlarged view of the restricted card block structure.
[0023] In the diagram: 1. Power supply housing; 2. Closed cover; 3. Battery mounting compartment; 4. First battery block; 5. Second battery block; 6. Third battery block; 7. Connecting wire limiting assembly; 8. Positive terminal connector; 9. Negative terminal connector;
[0024] 701. Limiting slot; 702. Fixing screw hole; 703. Limiting connecting plate; 704. Connecting socket; 705. Wire groove; 706. First wire passage opening; 707. Second wire passage opening; 708. Third wire passage opening; 709. Power transmission line; 710. Fixing cover plate; 711. Fixing socket; 712. Fixing bolt; 713. External output line; 714. Limiting block. Detailed Implementation
[0025] Please see Figure 1-5 ,
[0026] Example 1: A power bank battery connection cable limiting structure includes a power housing 1, a closing cover 2 at the top of the power housing 1, a battery mounting compartment 3 on the power housing 1, a first battery block 4, a second battery block 5 and a third battery block 6 arranged sequentially in the battery mounting compartment 3, a positive terminal connector 8 and a negative terminal connector 9 on the first battery block 4, the second battery block 5 and the third battery block 6, and a connection cable limiting component 7 arranged in the battery mounting compartment 3.
[0027] The connecting wire limiting assembly 7 includes limiting slots 701 symmetrically opened on both sides of the inner wall of the battery mounting compartment 3. The bottom wall of each limiting slot 701 is provided with a fixing screw hole 702. A limiting connecting plate 703 is provided inside the battery mounting compartment 3. Both ends of the limiting connecting plate 703 are inserted into the limiting slots 701. Each end of the limiting connecting plate 703 is provided with a connecting insertion hole 704. Two wire grooves 705 are symmetrically opened on the limiting connecting plate 703. One end of the limiting connecting plate 703 is provided with a first wire passage opening 706. The other end of the limiting connecting plate 703 is provided with a third wire passage opening 708. The two sides of the middle part of the limiting connecting plate 703 are symmetrically provided with second wire passage openings 707. The negative terminal connectors 9 on the first battery block 4 and the second battery block 5 are connected by a provided power transmission line 709.
[0028] The negative terminals 9 on the second battery block 5 and the third battery block 6 are also connected by the power transmission line 709. The top of the limiting connection plate 703 is provided with a fixing cover plate 710. The ends of the fixing cover plate 710 are provided with fixing holes 711. Fixing bolts 712 are inserted into the fixing holes 711. The bottom end of the fixing bolts 712 passes through the connecting hole 704 and is inserted into the fixing screw hole 702. The positive terminal 8 is connected to an external output line 713. The external output line 713 is limited by the limiting block 714 provided on the first battery block 4.
[0029] Example 2: The difference between this example and Example 1 is that the top of the closed cover 2 is provided with a handle.
[0030] This makes it easier for users to lift the power supply housing 1.
[0031] Example 3: The difference between this example and Example 1 is that baffles are provided on both sides of the end of the transmission line 709 that is close to the positive terminal 8 or the negative terminal 9.
[0032] This allows the transmission line 709 to be better limited.
[0033] Example 4: The difference between this example and Example 1 is that the limiting block 714 is L-shaped and vertical, and the limiting block 714 is connected to the first battery block 4 by adhesive bonding.
[0034] This ensures that the external output line 713, which is limited by the limiting block 714, is stopped when it bends, thus preventing the external output line 713 from being excessively bent and cracked when turning.
[0035] In this embodiment, because the existing mobile power bank battery connection cable lacks an effective fixing and restraining structure during actual use, it is easy for it to loosen or fall off due to external pulling, dragging or accidental contact during use, resulting in charging interruption and affecting the normal use of the device. At the same time, excessive pulling can also damage the internal wires of the connection cable, reduce the service life of the connection cable, and even cause safety hazards such as short circuits.
[0036] In summary, in specific implementation, by setting a connecting wire limiting component 7 in the battery installation compartment 3, wherein the limiting connecting plate 703 in the connecting wire limiting component 7 is located on the top side of the first battery block 4, the second battery block 5 and the third battery block 6, it can play a certain role in fixing the battery. Both ends of the limiting connecting plate 703 are inserted into the limiting slot 701. Two wire grooves 705 are symmetrically opened on the limiting connecting plate 703. One end of the limiting connecting plate 703 has a first wire passing opening 706, the other end has a third wire passing opening 708, and the middle has a second wire passing opening 707. Thus, when the negative terminal 9 or positive terminal 8 on the first battery block 4, the second battery block 5 and the third battery block 6 are connected by the transmission wire 709, the transmission wire 709 first needs to pass through the first wire passing opening 706 and travel a certain distance in the wire groove 705.
[0037] The wires pass through the second wire opening 707 and connect to the negative terminal 9 or positive terminal 8 on another set of batteries. This restricts and fixes the wiring between each battery through the wire groove 705 on the limiting connection plate 703, effectively avoiding the risk of exposed wires being easily pulled. Furthermore, by limiting and fixing the wires, it also avoids the situation of messy connection wires, making it easier for users to connect the positive terminal 8 and negative terminal 9 on each battery. Finally, by inserting the fixing cover plate 710 and fixing bolts 712 into the fixing screw holes 702, the limiting connection plate 703 is fixed to the top of each battery, which also restricts and protects the battery connection wires.
Claims
1. A mobile power bank battery connection cable limiting structure, comprising a power housing (1), characterized in that: The top of the power housing (1) is provided with a closed cover (2), and the power housing (1) is provided with a battery mounting compartment (3). The battery mounting compartment (3) is provided with a first battery block (4), a second battery block (5) and a third battery block (6) in sequence. The first battery block (4), the second battery block (5) and the third battery block (6) are all provided with a positive terminal connector (8) and a negative terminal connector (9). The battery mounting compartment (3) is provided with a connecting wire limiting component (7). The connecting wire limiting assembly (7) includes limiting slots (701) symmetrically opened on both sides of the inner wall of the battery mounting compartment (3). Each limiting slot (701) has a fixing screw hole (702) on its bottom wall. A limiting connecting plate (703) is provided inside the battery mounting compartment (3). Both ends of the limiting connecting plate (703) are inserted into the limiting slots (701). Each end of the limiting connecting plate (703) has a connecting insertion hole (704). Two wire grooves (705) are symmetrically opened on the limiting connecting plate (703). One end of the limiting connecting plate (703) has a first wire threading opening (706). The other end of the limiting connection plate (703) is provided with a third wire-passing opening (708). The two sides of the middle part of the limiting connection plate (703) are symmetrically provided with second wire-passing openings (707). The negative terminal connectors (9) on the first battery block (4) and the second battery block (5) are connected by a power transmission line (709). The negative terminal connectors (9) on the second battery block (5) and the third battery block (6) are also connected by a power transmission line (709). The top of the limiting connection plate (703) is provided with a fixing cover plate (710). The ends of the fixing cover plate (710) are provided with fixing holes (711).
2. The mobile power bank battery connection cable limiting structure according to claim 1, characterized in that: Each of the fixed insertion holes (711) is equipped with a fixing bolt (712), and the bottom end of the fixing bolt (712) passes through the connecting insertion hole (704) and is inserted into the fixing screw hole (702).
3. The mobile power bank battery connection cable limiting structure according to claim 2, characterized in that: An external output line (713) is connected to the positive terminal (8), and the external output line (713) is limited by a limiting block (714) set on the first battery block (4).
4. The mobile power bank battery connection cable limiting structure according to claim 3, characterized in that: The top of the closed cover (2) is provided with a handle.
5. The mobile power bank battery connection cable limiting structure according to claim 4, characterized in that: The power transmission line (709) has baffles on both sides of one end near the positive terminal (8) or the negative terminal (9).
6. The mobile power bank battery connection cable limiting structure according to claim 5, characterized in that: The limiting block (714) is L-shaped and vertical, and the limiting block (714) is connected to the first battery block (4) by adhesive bonding.