Storage battery charger with firm shell
By using protective shells on the upper and lower housings of the electric bicycle charger and securing them with bolts, the problem of loose shell connections was solved, improving the overall performance and lifespan of the charger.
Patent Information
- Application Number
- CN202521071603.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-28
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-05-28
AI Technical Summary
The existing electric bicycle charger casing is not securely attached, affecting the overall performance and lifespan of the charger.
A protective shell (such as an aluminum shell) is used to cover the upper and lower shells and is secured with bolts to increase the strength of the shell assembly.
The overall strength and stability of the casing have been improved, enhancing the overall performance and lifespan of the charger.
Smart Images

Figure CN223934552U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a battery charger with a robust outer shell, belonging to the field of charger design technology. Background Technology
[0002] With the increasing popularity of electric bicycles, chargers for these bicycles are becoming increasingly important. Existing chargers consist of an upper shell and a lower shell. The upper shell has an upper cavity with one open end, and the lower shell has a lower cavity with one open end. The upper and lower shells are threaded together and fixed in place, forming a receiving cavity. The main board is installed within this cavity, and the shell protects it. However, existing charger shells (upper and lower shells) suffer from a problem of loose assembly, which severely affects the overall performance of the charger and reduces its lifespan. Utility Model Content
[0003] The purpose of this invention is to address the aforementioned problems by providing a battery charger with a robust outer casing.
[0004] To achieve the aforementioned utility model objectives, the technical solution adopted by this utility model is as follows: A battery charger with a robust outer shell includes an upper shell and a lower shell. The upper shell has an upper cavity with one end open, and the lower shell has a lower cavity with one end open. The upper shell and lower shell are fixedly connected, and the upper cavity and lower cavity form a receiving cavity. The upper shell and lower shell constitute the outer shell of the battery charger. A main board is installed in the receiving cavity, and the main board is fixed to the upper shell and / or the lower shell. Its characteristic is:
[0005] The upper and lower shells are fixedly connected and then fitted with a protective shell, which is then fixed to the upper and lower shells.
[0006] The protective shell is made of aluminum.
[0007] The upper and lower shells of the protective casing are fixed by bolts.
[0008] The upper housing is provided with a display window, and a display screen is installed on the motherboard, with the display screen facing the display window on the upper housing; the protective shell is provided with a viewing opening, which corresponds to the display window; a face mask is affixed to the upper housing, which is placed inside the viewing opening and covers the display window.
[0009] This utility model has a reasonable structure and mainly improves upon existing chargers by adding a protective shell after the upper and lower shells are fixedly connected. This protective shell is then fixedly connected to the upper and lower shells. This design increases the overall strength and stability of the outer shell.
[0010] Preferably, the protective shell is made of aluminum, which has the advantages of being lightweight, sturdy, and having good heat dissipation performance, making it suitable for use as a charger shell.
[0011] The protective shell is bolted to the upper and lower shells, providing higher connection strength and stability.
[0012] Preferably, a display window is provided on the upper housing, and a display screen is mounted on the motherboard, with the display screen facing the display window. A viewing opening is provided on the protective shell, corresponding to the display window. A faceplate is affixed to the upper housing, placed inside the viewing opening, covering the display window. This design ensures the visibility of the display screen while also enhancing the aesthetics and sealing of the casing.
[0013] In summary, the battery charger with a robust outer shell provided by this utility model significantly improves the bonding strength of the outer shell by adding a protective shell and using bolt fixing, thereby enhancing the overall performance and service life of the charger, and has great market application and promotion value. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] In the picture: 1. Cover sticker, 2. Protective shell, 3. Upper shell, 4. Motherboard, 5. Lower shell, 6. Display window, 7. Viewing port. Detailed Implementation
[0016] The present invention will now be described in further detail with reference to the accompanying drawings and descriptions.
[0017] A robust battery charger includes an upper housing 3 and a lower housing 5. The upper housing 3 has an upper cavity with one end open, and the lower housing 5 has a lower cavity with one end open. The upper housing 3 and the lower housing 5 are fixedly connected, and the upper cavity and the lower cavity form a receiving cavity. The upper housing 3 and the lower housing 5 constitute the outer shell of the battery charger. A main board 4 is installed in the receiving cavity, and the main board 4 is fixed to the upper housing 3 and / or the lower housing 5. After the upper housing 3 and the lower housing 5 are fixedly connected, a protective shell is fitted on them, and the protective shell 2 is fixed to the upper housing 3 and the lower housing 5.
[0018] Furthermore, the protective shell 2 is made of aluminum. The upper shell 3 and lower shell 5 of the protective shell 2 are fixed together by bolts.
[0019] A display window 6 is provided on the upper housing 3, and a display screen is installed on the motherboard 4, with the display screen facing the display window 6 on the upper housing 3; a viewing hole 7 is provided on the protective shell 2, which corresponds to the display window 6; a face mask 1 is affixed to the upper housing 3, which is placed inside the viewing hole 7 and covers the display window 6.
Claims
1. A battery charger with a robust outer shell, comprising an upper shell (3) and a lower shell (5), wherein the upper shell (3) has an upper cavity with one end open, and the lower shell (5) has a lower cavity with one end open; the upper shell (3) and the lower shell (5) are fixedly connected, and the upper cavity and the lower cavity form a receiving cavity; the upper shell (3) and the lower shell (5) constitute the outer shell of the battery charger; a main board (4) is installed in the receiving cavity, and the main board (4) is fixed to the upper shell (3) and / or the lower shell (5); characterized in that: After the upper shell (3) and lower shell (5) are fixedly connected, a protective shell (2) is fitted on them, and the protective shell (2) is fixed to the upper shell (3) and lower shell (5) after being fitted on them.
2. A battery charger with a robust outer casing according to claim 1, characterized in that: The protective shell (2) is an aluminum shell.
3. A battery charger with a robust outer casing according to claim 1, characterized in that: The protective shell (2), upper shell (3), and lower shell (5) are fixed by bolts.
4. A battery charger with a robust outer casing according to claim 1, characterized in that: The upper housing (3) is provided with a display window (6), and the motherboard (4) is equipped with a display screen, which faces the display window (6) on the upper housing (3); the protective shell (2) is provided with a viewing hole (7), which corresponds to the display window (6); a face sticker (1) is attached to the upper housing (3), which is placed inside the viewing hole (7) and covers the display window (6).