A power-assisted wireless charging structure
By using a wireless charging structure with a transmitter and an on-vehicle receiver, the problems of easy wear and tear on traditional electric bicycle charging interfaces and cumbersome operation are solved, achieving a safe, intelligent, and efficient charging experience, adapting to harsh environments, and extending battery life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XUZHOU EAST INNOVATION ENERGY TECHNOLOGY CO LTD
- Filing Date
- 2025-07-23
- Publication Date
- 2026-06-09
AI Technical Summary
Traditional electric bicycle charging interfaces are prone to wear and tear, resulting in reduced efficiency, cumbersome operation, safety hazards, and inability to adapt to harsh environments.
It adopts a wireless charging structure, including a transmitter and an on-board receiver, and uses built-in transmitting and receiving coils to achieve contactless charging. It is also equipped with a fully enclosed design and intelligent protection mechanism.
It enables a safe, intelligent, and efficient charging experience, avoids the risk of arcing caused by poor contact, adapts to harsh environments, extends battery life, and reduces manual operation time.
Smart Images

Figure CN224342958U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of charging, and in particular to an assistive wireless charging structure. Background Technology
[0002] By the end of 2024, my country had over 400 million electric bicycles in use, with an annual production of approximately 35 million units, accounting for over 90% of global sales. Electric bicycles have become a core tool for short-distance travel.
[0003] According to data from the National Fire Safety Administration and the China Battery Industry Association, electric bicycle fires have occurred frequently in recent years. Battery systems account for 58.3% of these accidents, while charging facilities account for 23.4%. Therefore, improving electric bicycle charging safety is urgently needed.
[0004] In existing technologies, charging interfaces suffer from physical wear and tear, with a standard plug-in / plug-out lifespan of only 500-800 cycles. Efficiency declines: poor contact leads to a 20%-40% decrease in charging efficiency. Typical faults include plug oxidation, spring deformation, and plastic cracking. Furthermore, the user experience is poor and operation is cumbersome: plugging and unplugging an average of 2-4 times per day, with each operation taking approximately 2 minutes. Special scenarios include: wiping the interface in rain or snow to prevent water stains; and confirming the connection status when charging at night. Space constraints: the location of the socket forces changes in parking positions, and tangled cables make retrieving the vehicle difficult. Safety hazards: accidental contact with exposed plugs during plugging and unplugging; charger theft accounts for 42% of electric vehicle accessory thefts. Additionally, traditional physical plug charging incurs maintenance costs. Utility Model Content
[0005] The purpose of this invention is to provide an assistive wireless charging structure to solve the technical problems of traditional charging being prone to wear and tear, thereby achieving wireless charging, reducing wear and tear, and reducing the manpower and time required for manual plugging.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A wireless charging structure includes: a transmitter, the transmitter including a transmitter housing and a built-in transmitter charging coil, the built-in transmitter charging coil being connected to an external power source; and a vehicle-mounted receiver, the vehicle-mounted receiver including a receiver housing and a built-in receiver charging coil, the built-in receiver charging coil receiving wireless charging from the built-in transmitter charging coil.
[0008] As a preferred embodiment of this utility model, the launch housing includes an upper cover plate and a lower cover plate, and the upper cover plate and the lower cover plate are detachable structures.
[0009] As a preferred embodiment of this utility model, the lower cover plate is provided with a plurality of heat dissipation holes.
[0010] As a preferred embodiment of this utility model, the built-in transmitting charging coil is arranged in a ring inside the transmitting housing, and the built-in transmitting charging coil is placed inside the ring disk, which is connected to the transmitting housing by bolts.
[0011] As a preferred embodiment of this utility model, the receiving housing is provided with a detachable external cover on the outward side, and the built-in receiving charging coil is snapped onto the external cover.
[0012] As a preferred embodiment of this utility model, the receiving housing extends a connection channel on the side away from the outer cover plate to connect to the charging terminal of the vehicle.
[0013] As a preferred embodiment of this utility model, a magnetic attraction part is provided on the side of the built-in receiving charging coil facing the external cover plate to attract the built-in transmitting charging coil.
[0014] As a preferred embodiment of this utility model, the connecting channel is provided with a handle.
[0015] The beneficial effects of this utility model are:
[0016] 1. Through contactless charging and intelligent interaction between the transmitter and the vehicle-mounted receiver, a safer, smarter, more efficient, and more convenient charging experience is achieved. Simultaneously, electromagnetic safety is ensured during charging – the charging radiation intensity is far below international standards, posing no impact on the human body or the environment. No physical contact eliminates the risk of electric sparks during charging – the charging process completely eliminates the potential for electric arcing during insertion and removal, preventing short circuits or fires caused by poor contact.
[0017] 2. The fully enclosed design of both the transmitter and receiver housings ensures waterproof and dustproof (IP67) charging – with no exposed interfaces, it can withstand harsh environments such as heavy rain and sandstorms, preventing water ingress, short circuits, or oxidation corrosion. Multiple intelligent protection mechanisms during charging – real-time monitoring of power and temperature during charging, with millisecond-level power cut-off in case of abnormalities. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the assistive wireless charging structure of this utility model;
[0019] Figure 2 This is a partial cross-sectional view of the vehicle-mounted receiver of the wireless charging structure of this utility model.
[0020] Figure 3 This is an exploded view of the transmitting end of this utility model;
[0021] Figure 4 This is a side view of the transmitter of this utility model.
[0022] Legend:
[0023] 1. Transmitter; 11. Transmitter housing; 111. Upper cover; 112. Lower cover; 1121. Heat dissipation holes; 12. Built-in transmitter charging coil;
[0024] 2. Vehicle-mounted receiver; 21. Receiver housing; 211. External cover; 22. Built-in receiver charging coil; 23. Connection channel; 231. Handle; 24. Magnetic attachment. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0026] Example:
[0027] like Figures 1 to 4 As shown, an assisted wireless charging structure includes: a transmitter 1, which includes a transmitter housing 11 and a built-in transmitter charging coil 12, the built-in transmitter charging coil 12 being connected to an external power source; and a vehicle-mounted receiver 2, which includes a receiver housing 21 and a built-in receiver charging coil 22, the built-in receiver charging coil 22 receiving wireless charging from the built-in transmitter charging coil 12, thereby enabling the transmitter 1 to wirelessly charge the vehicle-mounted receiver 2.
[0028] The launch housing 11 includes an upper cover plate 111 and a lower cover plate 112. The upper cover plate 111 and the lower cover plate 112 are detachable, making it convenient for users to open and install the launch housing 11.
[0029] In this embodiment, the lower cover plate 112 has a plurality of heat dissipation holes 1121 to improve the overall heat dissipation effect.
[0030] The built-in transmitting charging coil 12 is arranged in a ring inside the transmitting housing 11. The built-in transmitting charging coil 12 is placed inside the ring disk, and the ring disk is connected to the transmitting housing 11 by bolts.
[0031] The receiver housing 21 has a detachable external cover 211 on the outward side, and the built-in receiving charging coil 22 is snapped into the external cover 211.
[0032] A connection channel 23 extends from the side of the receiver housing 21 away from the outer cover plate 211 to connect to the charging end of the vehicle.
[0033] A magnetic part 24 is provided on the side of the built-in receiving charging coil 22 facing the external cover plate 211 to attract the built-in transmitting charging coil 12.
[0034] In this embodiment, the connection channel 23 is provided with a handle 231, so that the user can easily take the vehicle receiver 2.
[0035] In summary, contactless charging and intelligent interaction via transmitter 1 and vehicle-mounted receiver 2 enable a safer, smarter, more efficient, and more convenient charging experience. Simultaneously, it ensures electromagnetic safety compliance during charging—the charging radiation intensity is far below international standards, posing no impact on human health or the environment. Furthermore, the absence of physical contact eliminates the risk of electrical sparks—charging completely eliminates the potential for arcing during insertion and removal, preventing short circuits or fires caused by poor contact.
[0036] With its fully enclosed design, including the transmitter housing 11 and receiver housing 21, the device is waterproof and dustproof (IP67) during charging—with no exposed interfaces—and can withstand harsh environments such as heavy rain and sandstorms, preventing water ingress, short circuits, or oxidation and corrosion. Multiple intelligent protection mechanisms during charging—real-time monitoring of power and temperature during charging, with millisecond-level power cut-off in case of abnormalities.
[0037] This application may also include the following features:
[0038] Automatic Identification and Dynamic Power Adjustment Charging – The charging system automatically identifies the vehicle, battery type, and charging needs, dynamically adjusting the output power to avoid overcharging or energy waste, extending battery life by more than 30%. Foreign Object Detection (FOD) Charging – The charging system detects metal / living object interference to ensure charging safety.
[0039] Anti-theft battery design during charging---charging is only enabled for certified vehicles. Unauthorized power extraction will automatically cut off the power, trigger an alarm, and upload the information to the cloud.
[0040] Seamless charging – Charge and stop instantly, no need to plug or unplug, supports automatic payment. Remote monitoring charging – View vehicle location, charging status, and history via a mobile app, and receive abnormal charging alerts (such as charging interruption). Multi-scenario adaptability – Charging stations can be deployed in communities, scenic spots, campuses, public parking lots, and shared bicycle stations.
[0041] All the devices selected in this application are general standard parts or components known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.
[0042] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0043] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0044] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A wireless charging structure, characterized in that, include: The transmitter (1) includes a transmitter housing (11) and a built-in transmitter charging coil (12), which is connected to an external power source; The vehicle-mounted receiver (2) includes a receiver housing (21) and a built-in receiving charging coil (22), which receives wireless charging from the built-in transmitting charging coil (12).
2. The assisted wireless charging structure as described in claim 1, characterized in that, The launch housing (11) includes an upper cover plate (111) and a lower cover plate (112), which are detachable.
3. The assisted wireless charging structure as described in claim 2, characterized in that, The lower cover plate (112) has several heat dissipation holes (1121).
4. The assisted wireless charging structure as described in claim 3, characterized in that, The built-in transmitting charging coil (12) is arranged in a ring inside the transmitting housing (11). The built-in transmitting charging coil (12) is placed inside the ring disk, and the ring disk is connected to the transmitting housing (11) by bolts.
5. The assisted wireless charging structure as described in claim 4, characterized in that, The receiving housing (21) has a detachable external cover plate (211) on the outward side, and the built-in receiving charging coil (22) is snapped into the external cover plate (211).
6. The assisted wireless charging structure as described in claim 5, characterized in that, The receiving housing (21) has a connection channel (23) extending on the side away from the outer cover plate (211) to connect to the charging end of the vehicle.
7. The assisted wireless charging structure as described in claim 6, characterized in that, The built-in receiving charging coil (22) is provided with a magnetic attraction part (24) on the side facing the outer cover plate (211) to attract the built-in transmitting charging coil (12).
8. The assisted wireless charging structure as described in claim 7, characterized in that, The connecting channel (23) is provided with a handle (231).