Battery mounting structure of electric bicycle frame

By introducing a hollow structure and spring lock into the battery mounting structure, the problems of inconvenient battery removal and difficulty in draining accumulated water are solved, achieving automatic locking and lightweight design, thus improving the convenience and economy of electric bicycle batteries.

CN223835734UActive Publication Date: 2026-01-27FOSHAN ZNH SPORTS PROD CO LTD
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Patent Information

Application Number
CN202422157133.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-03
Publication Date
2026-01-27
Estimated Expiration
2034-09-03

AI Technical Summary

Technical Problem

Traditional electric bicycle battery installation structures are inconvenient to disassemble and install in situations where space is limited, and also suffer from problems such as difficulty in draining rainwater, the need for manual operation of locks, and high material consumption.

Method used

It adopts a hollow structure design, combined with a spring lock and a drainage hole, to achieve automatic drainage and automatic locking. It uses aluminum alloy material to reduce weight and lower cost.

Benefits of technology

It enables convenient battery removal and installation, automatic drainage to prevent short circuits, reduces material usage and weight, improves ease of use and reduces costs.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223835734U_ABST
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Abstract

The utility model discloses a battery mounting structure of an electric bicycle frame, which comprises a battery tube and a battery, an upper tube head and a lower tube head are arranged at the upper end and the lower end of the battery tube, and an upper fixing seat and a lower fixing seat are respectively arranged through the upper tube head and the lower tube head; a lock is arranged in the upper fixing seat; a lock seat is arranged at the upper end of the battery; hollowed-out cavities are formed in the upper pipe head and the lower pipe head, a water leakage hole is formed in the lower fixing seat, and the water leakage hole is communicated with the hollowed-out cavity of the lower pipe head; the lock in the upper fixing base is an elastic lock so as to achieve automatic locking. In this way, rainwater can be discharged through the water leakage holes after entering along the gaps and is discharged out of the battery tube through the hollow cavity, accumulated water does not need to be manually removed, and electric connection is prevented from being affected by the short circuit risk caused by accumulated water. And after the elastic lock is adopted, the battery can be automatically locked after sliding into the mounting groove, the battery does not need to be manually locked, and the use is more convenient.
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Description

Technical Field

[0001] This utility model relates to the field of transportation vehicle accessories technology, and in particular to a battery mounting structure for an electric bicycle frame. Background Technology

[0002] Traditional electric bicycles use a top-mounted battery design, which can cause interference when there is insufficient space above, such as when the battery is blocked by a crossbar. Removing the battery from the bottom up or installing it from the top down can lead to difficulties during battery maintenance. To address this, the applicant has filed a utility model patent application entitled "An Electric Bicycle Frame Structure," which designs a side-pull battery mounting structure. After unlocking with a key, the battery can be pulled to the side for easy removal, avoiding the inconvenience of battery removal and installation on models with crossbars. However, this patented solution still has some problems. For example, rainwater can easily seep into the connector through the gap between the battery and the connector and is difficult to drain, requiring manual removal. Also, the lock uses a common non-spring-loaded lock, requiring manual locking. Furthermore, the front bar is mostly a solid structure, resulting in higher material consumption and weight. Utility Model Content

[0003] This utility model addresses the shortcomings of existing technologies by providing a battery mounting structure for an electric bicycle frame that is simple in structure, more rationally designed, can automatically drain accumulated water, is easier to lock, and is lighter.

[0004] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a battery mounting structure for an electric bicycle frame, including a battery tube and a battery. The upper and lower ends of the battery tube have an upper tube head and a lower tube head, and there is a mounting groove for mounting the battery between the upper and lower tube heads. The upper and lower ends of the mounting groove are respectively provided with an upper fixing seat and a lower fixing seat at the positions where they connect with the upper and lower tube heads. A lock is provided in the upper fixing seat, and the upper end of the battery has a lock seat. The battery is locked and fixed by its lock seat and the lock in the upper fixing seat. A power connector is provided in the lower fixing seat. After the battery is inserted into the mounting groove, it is electrically connected to the power connector. The feature is that: both the upper and lower tube heads are provided with hollow cavities to form a hollow structure. A drainage hole is provided in the lower fixing seat, and the drainage hole is connected to the hollow cavity of the lower tube head. The lock in the upper fixing seat is a spring lock. When the lock hole of the lock seat is aligned with the lock tongue of the spring lock, the lock tongue automatically pops out and inserts into the lock hole to lock and fix the battery.

[0005] Furthermore, the junction box has six conductive terminals, including two power terminals and four signal terminals.

[0006] Furthermore, a wire-passing hole is provided in both the upper and lower tube heads. The wire-passing hole is independent of the hollow cavity, and the cable connecting the battery and the control mechanism passes through the wire-passing hole.

[0007] Furthermore, the battery tube is made of aluminum alloy, and the upper and lower tube ends are integrally integrated with the main body of the battery tube.

[0008] Furthermore, both the upper and lower fixing seats are made of plastic material, with the upper fixing seat connected and fixed to the upper tube head, and the lower fixing seat connected and fixed to the lower tube head.

[0009] This invention features a drainage hole on the lower mounting base of the battery tube. Rainwater enters through the gap and drains out through the hole and then through the hollow cavity, eliminating the need for manual water removal and preventing short circuits that could affect electrical connections. Furthermore, the use of a spring-loaded lock automatically locks the battery after it slides into the mounting slot, eliminating the need for manual locking and making it more convenient. Additionally, the large hollow cavities at both the upper and lower tube ends reduce material usage, weight, and cost. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the assembly structure of this utility model;

[0011] Figure 2 This is a schematic diagram of the assembly structure from another angle of this utility model;

[0012] Figure 3 This is a schematic diagram of the battery structure.

[0013] In the diagram, 1 is the battery tube, 11 is the mounting slot, 12 is the upper tube head, 13 is the lower tube head, 14 is the hollow cavity, 15 is the wire hole, 16 is the drainage hole, 17 is the power connector, 2 is the battery, 21 is the lock seat, 3 is the upper fixing seat, 4 is the lower fixing seat, and 5 is the spring lock. Detailed Implementation

[0014] In this embodiment, refer to Figures 1-3The battery mounting structure of the electric bicycle frame includes a battery tube 1 and a battery 2. The battery tube 1 has an upper tube end 12 and a lower tube end 13 at its upper and lower ends. A mounting groove 11 for mounting the battery is located between the upper and lower tube ends 12 and 13. An upper fixing seat 3 and a lower fixing seat 4 are respectively provided at the upper and lower ends of the mounting groove 11 where they connect with the upper and lower tube ends 12 and 13. A lock is provided in the upper fixing seat 3, and a lock seat 21 is located at the upper end of the battery 2. The battery 2 is locked in place by its lock seat 21 and the lock in the upper fixing seat 3. A connecting... The battery 2 is inserted into the mounting slot 11 and electrically connected to the battery socket 17. Both the upper tube head 12 and the lower tube head 13 have hollow cavities 14 to form a hollow structure. A drainage hole 16 is provided in the lower fixing seat 4, which connects to the hollow cavity 14 of the lower tube head 13, allowing leaked water to drain out through the hollow cavity 14. The lock in the upper fixing seat 3 is a spring lock 5. When the lock hole of the lock seat 21 aligns with the bolt of the spring lock 5, the bolt automatically pops out and inserts into the lock hole to lock and fix the battery 2, thus eliminating the need for manual locking. The lock hole is also enlarged to solve the problem of misalignment caused by deformation.

[0015] The power connector 17 has six conductive terminals, including two power terminals and four signal terminals, to realize functions such as power supply, communication, and wake-up.

[0016] A wire-passing hole 15 is also provided in the upper tube head 12 and the lower tube head 13. The wire-passing hole 15 is independent of the hollow cavity 14. The cable connecting the battery 2 and the control mechanism passes through the wire-passing hole 15.

[0017] The battery tube 1 is made of aluminum alloy, and the upper tube head 12 and the lower tube head 13 are integral with the main body of the battery tube 1.

[0018] Both the upper fixing seat 3 and the lower fixing seat 4 are made of plastic material. The upper fixing seat 3 is connected and fixed to the upper tube head 12, and the lower fixing seat 4 is connected and fixed to the lower tube head 13.

[0019] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made in accordance with the scope of this application should still fall within the scope of the present invention.

Claims

1. A battery mounting structure for an electric bicycle frame, comprising a battery tube and a battery, wherein the battery tube has an upper tube end and a lower tube end at its upper and lower ends, and a mounting groove for mounting the battery is provided between the upper and lower tube ends; an upper fixing seat and a lower fixing seat are respectively provided at the upper and lower ends of the mounting groove where they connect with the upper and lower tube ends; a lock is provided in the upper fixing seat, and a locking seat is provided at the upper end of the battery, wherein the battery is locked and fixed by its locking seat to the lock in the upper fixing seat; a power connector is provided in the lower fixing seat, and the battery is electrically connected to the power connector after being inserted into the mounting groove, characterized in that: Both the upper and lower tube heads have hollow cavities inside, forming a hollow structure. A water leakage hole is provided in the lower fixing seat, which connects to the hollow cavity of the lower tube head. The lock in the upper fixing seat is a spring lock. When the lock hole of the lock seat is aligned with the lock tongue of the spring lock, the lock tongue automatically pops out and inserts into the lock hole to lock and fix the battery.

2. The battery mounting structure of the electric bicycle frame according to claim 1, characterized in that: The junction box has six conductive terminals, including two power terminals and four signal terminals.

3. The battery mounting structure of the electric bicycle frame according to claim 1, characterized in that: The upper and lower tube heads are also provided with wire-passing holes. The wire-passing holes are independent of the hollow cavity, and the cables connecting the battery and the control mechanism pass through the wire-passing holes.

4. The battery mounting structure of the electric bicycle frame according to claim 1, characterized in that: The battery tube is made of aluminum alloy, and the upper and lower tube ends are integrated with the main body of the battery tube.

5. The battery mounting structure of the electric bicycle frame according to claim 1, characterized in that: Both the upper and lower fixing seats are made of plastic material. The upper fixing seat is connected and fixed to the upper tube head, and the lower fixing seat is connected and fixed to the lower tube head.