Electric power-assisted bicycle with charger and bicycle lamp
By integrating the charger with the bicycle light and designing it as a hidden structure with bidirectional inverter function, the problem of inconvenient charging of traditional electric bicycles is solved, achieving portability and aesthetics of the charger and improving ease of use.
Patent Information
- Application Number
- CN202520778669.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-04-23
AI Technical Summary
Traditional electric bicycle chargers are inconvenient to carry and aesthetically unappealing, and require finding an AC outlet to charge, making them difficult to use.
The charger is integrated with the bicycle light in a concealed design and features a bidirectional inverter function to convert DC and AC power. It is integrated into the front of the bicycle and connected to the light via a conduit to provide charging and power supply.
It achieves portability and aesthetics in the charger, with a compact structure that integrates charging and power supply functions, thus improving ease of use.
Smart Images

Figure CN223962209U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electric-assisted bicycle technology, specifically an electric-assisted bicycle with a charger and lights. Background Technology
[0002] Electric-assist bicycles are known for their compact size and lightweight design. They typically use lithium batteries, requiring an external charger to convert 220V AC power into DC power for the battery. This traditional charger is often not portable, making charging somewhat inconvenient.
[0003] Placing the charger directly inside the vehicle is not aesthetically pleasing, and a suitable AC outlet still needs to be found. How can we make better use of existing AC charging stations to charge electric bicycles, improving convenience without compromising the bicycle's appearance? Utility Model Content
[0004] To address the problems mentioned in the background art, this utility model provides an electric bicycle with a charger and headlight, including a bicycle, a bicycle battery, a headlight, a pipe, and a charger. A pipe is located at the front of the bicycle, with a headlight at one end. A bracket is connected inside the pipe via a fixing component, and a charger is mounted on the bracket. An AC charging socket is located at the front of the charger, and a power cord is located at the rear of the charger, connecting to the bicycle battery. The headlight includes a housing and a lamp body. A hinge is located at the upper end of the housing, with the other end of the hinge positioned on the upper side of the pipe's outer wall. The housing is movably connected to the pipe via the hinge. The lamp body is located on one side inside the housing, and an AC charging interface is located on the outer side of the housing corresponding to the lamp body's position. The lamp body and the AC charging interface are electrically connected. The AC charging interface of the headlight and the AC charging socket of the charger are electrically connected after being inserted. The charger has a bidirectional inverter function; the bicycle battery is converted to AC power by the charger to supply power to the headlight or external AC load devices, and external AC charging devices are converted to DC power by the charger to charge the bicycle battery.
[0005] The pipe has a straight upper end and a rounded lower end with a smooth transition.
[0006] A waterproof sealing strip is provided in the gap between the pipe opening and the AC charging socket.
[0007] The bracket has a limiting plate at one end and a limiting ring at the other end.
[0008] The outer shell has a buckle at one end, and the pipe has a corresponding slot. The outer shell can be fastened and fixed to the pipe by the buckle.
[0009] Compared with the prior art, this utility model integrates the headlight and charger at the front of the electric-assist bicycle, making it compact in structure. The hidden charging port makes the whole vehicle more aesthetically pleasing. The charger's bidirectional inverter function can convert DC and AC power, achieving charging and power supply from a single port, which is convenient and practical. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the structure of this utility model;
[0011] Figure 2 This is a schematic diagram of the cross-section of the pipe;
[0012] Figure 3 This is a schematic diagram illustrating the use of this utility model;
[0013] See Figure 1 1. Pipe, 2. Bracket, 3. Charger, 4. AC charging socket, 5. Power cord, 6. Housing, 7. Lamp body, 8. AC charging interface, 9. Limiting plate, 10. Limiting ring, 11. Buckle. Detailed Implementation
[0014] The present invention will be further described below with reference to the accompanying drawings.
[0015] like Figure 1 An electric bicycle with a charger and headlight includes a bicycle, a bicycle battery, a headlight, a pipe 1, and a charger 3. The bicycle has a pipe 1 at its front end, with a headlight at one end. A bracket 2 is connected inside the pipe 1 via a fastener, and the charger 3 is mounted on the bracket 2. The charger 3 has an AC charging socket 4 at its front end and a power cord 5 at its rear end, which connects to the bicycle battery. The headlight includes a housing 6 and a lamp body 7. A hinge is located at the top of the housing 6, with the other end of the hinge on the upper side of the outer wall of the pipe 1. The housing 6 is movably connected to the pipe 1 via the hinge. The lamp body 7 is located on one side inside the housing 6, and an AC charging interface 8 is located on the outer side of the housing 6 corresponding to the lamp body 7. The lamp body 7 is electrically connected to the AC charging interface 8 via a mounting hole on the housing 6. The AC charging interface 8 of the headlight and the AC charging socket 4 of the charger 3 are electrically connected after insertion. The charger 3 has a bidirectional inverter function; the DC power from the bicycle battery is converted to AC power by the charger 3 to power the headlight or an external AC load device, and the AC power provided by an external AC charging device is converted to DC power by the charger 3 to charge the bicycle battery.
[0016] like Figure 2 The cross-sectional shape of pipe 1 is straight at the top and rounded at the bottom, with a smooth transition, fitting the outer contour of the AC charging socket.
[0017] A waterproof sealing strip is installed in the gap between pipe 1 and AC charging socket 4 to ensure the equipment's sealing and waterproofness.
[0018] One end of the bracket 2 is provided with a limiting plate 9, and the other end is provided with a limiting ring 10, which fixes and restricts the position of the charger 3.
[0019] One end of the outer shell 6 is provided with a buckle 11, and the pipe 1 is provided with a corresponding slot. The outer shell 6 can be fastened and fixed to the pipe 1 by the buckle.
[0020] like Figure 3 When in use, the AC charging port 8 of the bicycle light is inserted into the AC charging socket 4 of the charger 3. The charger 3 then supplies power to the bicycle light, enabling it to illuminate. Pressing the clip 11 on the bicycle light housing causes it to deform diagonally and be pulled out. Flipping it along the hinge's range of motion exposes the AC charging socket 4, allowing other external AC load devices or external AC charging devices to be plugged into and connected to the charger 3. The charger 3 has two modes: charging mode and discharging mode. When the charger 3 is connected to an external AC charging device, such as a charging gun, it switches to charging mode, converting AC to DC to charge the bicycle battery. When the charger is connected to a bicycle light or an external AC load device, it switches to discharging mode, inverting DC to AC to power the bicycle light or external AC load device.
Claims
1. An electric-assisted bicycle with a charger and a light, comprising a bicycle, a bicycle battery, a light, a pipe (1), and a charger (3), characterized in that: The bicycle has a pipe (1) at the front end, with a light at one end. A bracket (2) is connected inside the pipe (1) via a fastener. A charger (3) is mounted on the bracket (2). An AC charging socket (4) is located at the front end of the charger (3), and a power cord (5) is located at the rear end of the charger (3). The power cord (5) is connected to the bicycle battery. The light includes a housing (6) and a lamp body (7). A hinge is located at the upper end of the housing (6), and the other end of the hinge is located on the upper side of the outer wall of the pipe (1). The housing (6) is movably connected to the pipe (1) via the hinge. A lamp body (7) is provided on one side inside the shell (6). An AC charging interface (8) is provided on the side of the shell (6) corresponding to the position of the lamp body (7). The lamp body (7) and the AC charging interface (8) are electrically connected. The AC charging interface (8) of the vehicle lamp and the AC charging socket (4) of the charger (3) are electrically connected after being inserted. The charger (3) has a bidirectional inverter function. The bicycle battery is converted into AC power by the charger (3) to power the vehicle lamp or external AC load equipment. The external AC charging equipment is converted into DC power by the charger (3) to charge the bicycle battery.
2. The electric-assist bicycle with charger and light according to claim 1, characterized in that: The cross-sectional shape of the pipe (1) is straight at the top and rounded at the bottom, with a smooth transition.
3. An electric-assist bicycle with a charger and headlight according to claim 1, characterized in that: A waterproof sealing strip is provided in the gap between the pipe (1) opening and the AC charging socket (4).
4. An electric-assist bicycle with a charger and headlight according to claim 1, characterized in that: The bracket (2) has a limiting plate (9) at one end and a limiting ring (10) at the other end.
5. An electric-assist bicycle with a charger and headlight according to claim 1, characterized in that: The outer shell (6) is provided with a buckle (11) at one end, and the pipe (1) is provided with a corresponding slot. The outer shell (6) can be fastened and fixed to the pipe (1) by the buckle.