Self-generating hub lamp based on PCB coil

CN224622714UActive Publication Date: 2026-08-11WUHAN AURATECH AUTOMOBILE TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-01
Publication Date
2026-08-11

AI Technical Summary

Technical Problem

[0002]轮毂灯是安装在汽车轮毂上的装饰灯具,主要用于提升车辆外观视觉效果及行驶辨识度,其光源多采用LED技术,通过半导体材料发光,具有低能耗、长寿命特性,部分产品结合太阳能供电实现动态光效,安装时需涉及测量、固定及电源连接等步骤,部分改装需调整车辆电路系统,该配件源于汽车个性化改装需求,在轮毂灯的发展过程中,现有的部分轮毂灯在轮毂转动时,动能通过电机转化为电能,但在汽车高速或长时间行驶下,电机会产生较多热量且并不能有效散热,从而减少电机使用寿命甚至损坏,不能通过其他方式为轮毂灯供电,影响了轮毂灯的时效耐久性,为此,我们提出了一种基于PCB线圈的自发电轮毂灯

Benefits of technology

[0015] 1. When this utility model is used, it generates electricity by cutting the static magnetic field through the PCB coil, which generates very little heat and does not require active heat dissipation, thus significantly improving the durability of the system.

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Abstract

This invention provides a self-generating hub lamp based on a PCB coil, belonging to the field of hub lamp technology. It includes a base shell containing several magnets for providing a magnetic field. The base shell also contains a PCB coil for inducing electromagnetic fields and a lamp board for power supply. A light-emitting element is connected to the lamp board. A connector is provided within the base shell. When the car is moving, the connector ensures that the PCB coil remains stationary while the magnets rotate. The magnetic field cuts through the PCB coil, generating a current that powers the light-emitting element through the lamp board. This invention powers the hub lamp by cutting through the magnetic field with the PCB coil, converting mechanical energy into electrical energy, thus improving the timeliness and durability of the hub lamp.
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Description

Technical Field

[0001] This utility model relates to the field of hub lamp technology, specifically to a self-generating hub lamp based on a PCB coil. Background Technology

[0002] Wheel hub lights are decorative lights installed on car wheel hubs, mainly used to enhance the vehicle's visual appearance and driving visibility. Their light source mostly uses LED technology, emitting light through semiconductor materials, featuring low energy consumption and long lifespan. Some products combine solar power to achieve dynamic lighting effects. Installation involves steps such as measurement, fixing, and power connection. Some modifications require adjustments to the vehicle's electrical system. This accessory originated from the demand for personalized car modifications. In the development of wheel hub lights, some existing wheel hub lights convert kinetic energy into electrical energy through a motor when the wheel hub rotates. However, under high speed or long-term driving conditions, the motor generates a lot of heat and cannot dissipate it effectively, thus reducing the motor's lifespan or even causing damage. The inability to power the wheel hub lights through other means affects their durability. Therefore, we propose a self-generating wheel hub light based on a PCB coil. Utility Model Content

[0003] In view of this, the present invention provides a self-generating hub lamp based on a PCB coil, which can power the hub lamp by cutting the magnetic field through the PCB coil, converting mechanical energy into electrical energy, thereby improving the timeliness and durability of the hub lamp.

[0004] To solve the above-mentioned technical problems, this utility model provides a self-generating hub lamp based on a PCB coil, including a base shell, in which several magnets for providing a magnetic field are installed. A PCB coil for inducing electromagnetic fields and a lamp board for power supply are respectively arranged inside the base shell. During operation, the PCB coil and magnets generate little heat, ensuring the lifespan of the PCB coil. A light-emitting element for emitting light is connected to the lamp board. A connector is provided inside the base shell. When the car is moving, the connector ensures that the PCB coil remains stationary while the magnets rotate. The magnetic field cuts through the PCB coil to generate current. According to the law of electromagnetic induction, magnetism generates electricity, which powers the light-emitting element through the lamp board.

[0005] The PCB coil is connected to the lamp board wiring harness.

[0006] The connecting component includes a bearing, a connecting block is mounted on the bottom shell, the connecting block is interference-fitted with the inner hole of the bearing, a guide block is provided on the connecting block, and a guide groove corresponding to the guide block is opened on the inner hole surface of the bearing to prevent the bearing from rotating relative to the connecting block.

[0007] The connector also includes a counterweight on the outer surface of the bearing to ensure that the light-emitting element remains stable while the car is in motion, thereby improving its aesthetic appeal.

[0008] A bracket is connected to the counterweight, and the PCB coil is located between the bracket and the light-emitting component.

[0009] The counterweight, bracket, PCB coil, lamp board, and light-emitting components are connected together by screws.

[0010] A magnetic support plate is connected to the connecting block, and a magnetic cover plate is connected to the magnetic support plate. Multiple magnets are arranged between the magnetic support plate and the magnetic cover plate.

[0011] The surface of the magnet support plate is provided with several partitions, and a placement groove is opened between two adjacent partitions. The magnets are arranged in a ring and placed in the placement groove in turn, which facilitates the assembly of the magnets.

[0012] The connecting block, bottom shell, magnet support plate, and magnet cover plate are connected together by screws.

[0013] The base is attached to the wheel hub with clips, which improves the ease of assembly and maintenance of the wheel hub lights.

[0014] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0015] 1. When this utility model is used, it generates electricity by cutting the static magnetic field through the PCB coil, which generates very little heat and does not require active heat dissipation, thus significantly improving the durability of the system.

[0016] 2. When this utility model is used, it directly utilizes the kinetic energy of the rotating wheel hub to convert it into electrical energy through the principle of electromagnetic induction (magnetism generates electricity) to drive the light-emitting component. No external power supply or complex circuit is required. The energy conversion path is short and the efficiency is high, realizing "lighting up while driving".

[0017] 3. When this utility model is used, the counterweight block + bearing structure ensures that the light-emitting component remains stationary during driving (does not rotate with the wheel hub), so that the light presents a stable visual effect, avoids rotational afterimages, and enhances the viewing experience.

[0018] 4. When using this utility model, the magnetic support plate partition design and screw connection enable precise circular arrangement of magnets and quick assembly and disassembly. The snap-on bottom shell simplifies the wheel hub installation process and improves the ease of assembly and maintenance of the wheel hub light. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the exploded structure of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 100, bottom shell; 201, magnet; 202, magnet support plate; 203, magnet cover plate; 300, connecting block; 400, bearing; 501, PCB coil; 502, bracket; 503, lamp board; 600, light-emitting component; 700, counterweight. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-2 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0023] According to embodiments of the present invention, such as Figure 1 and Figure 2 As shown: This embodiment provides a self-generating hub lamp based on a PCB coil, including a base shell 100. Several magnets 201 for providing a magnetic field are installed inside the base shell 100. A PCB coil 501 for inducing electromagnetic fields and a lamp board 503 for power supply are respectively arranged inside the base shell 100. During operation, the PCB coil 501 and magnets 201 generate little heat, ensuring the lifespan of the PCB coil 501. A light-emitting element 600 for emitting light is connected to the lamp board 503. A connector is provided inside the base shell 100. When the car is moving, the connector ensures that the PCB coil 501 remains stationary while the magnets 201 rotate. The magnetic field cuts the PCB coil 501, generating current. According to the law of electromagnetic induction, magnetism generates electricity, which is supplied through the lamp board 503 to make the light-emitting element 600 emit light.

[0024] It is worth mentioning that the light-emitting component 600 is a cover plate with a logo, and the light panel 503 is an LED light panel.

[0025] Furthermore, the PCB coil 501 is connected to the wiring harness of the lamp board 503.

[0026] Furthermore, the connecting component includes a bearing 400, a connecting block 300 is mounted on the bottom shell 100, the connecting block 300 is interference-fitted with the inner hole of the bearing 400, a guide block is provided on the connecting block 300, and a guide groove corresponding to the guide block is opened on the inner hole surface of the bearing 400 to prevent the bearing 400 from rotating relative to the connecting block 300.

[0027] Furthermore, the connector also includes a counterweight 700 disposed on the outer surface of the bearing 400. The counterweight 700 is a circular groove inside the bearing 400 that is rotatably fitted to it, in order to ensure that the light-emitting element 600 remains stable when the car is in motion, thereby improving its aesthetic appeal.

[0028] Furthermore, a bracket 502 is connected to the counterweight 700. The bracket 502 is a PCBA bracket, and the PCB coil 501 is located between the bracket 502 and the light-emitting element 600.

[0029] Furthermore, the counterweight 700, bracket 502, PCB coil 501, lamp board 503 and light-emitting component 600 are connected together by screws, which facilitates overall assembly and disassembly.

[0030] It is worth mentioning that the PCB coil 501, which is connected to the counterweight 700 and is located on the left side of the bearing 400, is designed to be close to the magnet 201 so as to facilitate the induction of electromagnetic fields to cut the magnetic field and generate electricity.

[0031] Furthermore, a magnetic support plate 202 is connected to the connecting block 300, and a magnetic cover plate 203 is connected to the magnetic support plate 202. Multiple magnets 201 are disposed between the magnetic support plate 202 and the magnetic cover plate 203.

[0032] Furthermore, the surface of the magnet support plate 202 is provided with several partitions, and a placement groove is opened between two adjacent partitions. The magnets 201 are arranged in a ring and placed in the placement groove in sequence, which facilitates the assembly of the magnets 201.

[0033] Furthermore, the connecting block 300, the bottom shell 100, the magnet support plate 202, and the magnet cover plate 203 are connected together by screws.

[0034] Furthermore, the bottom shell 100 is installed on the wheel hub with clips, which improves the ease of assembly and maintenance of the wheel hub light.

[0035] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they 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.

[0036] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A self-generating hub lamp based on a PCB coil, comprising a base shell (100), wherein a plurality of magnets (201) for providing a magnetic field are installed inside the base shell (100), characterized in that: The bottom shell (100) is provided with a PCB coil (501) for induction of electromagnetic field and a lamp board (503) for power supply. A light-emitting element (600) for emitting light is connected to the lamp board (503). A connector is provided in the bottom shell (100). When the car is moving, the connector can ensure that the PCB coil (501) remains stationary when the magnet (201) rotates. The magnetic field cuts the PCB coil (501) to generate current, which is powered by the lamp board (503) to make the light-emitting element (600) emit light.

2. The self-generating hub lamp based on a PCB coil as described in claim 1, characterized in that: The PCB coil (501) is connected to the lamp board (503) wiring harness.

3. The self-generating hub lamp based on a PCB coil as described in claim 1, characterized in that: The connecting component includes a bearing (400), and a connecting block (300) is installed on the bottom shell (100). The connecting block (300) is interference-fitted with the inner hole of the bearing (400).

4. A self-generating hub lamp based on a PCB coil as described in claim 3, characterized in that: The connector also includes a counterweight (700) disposed on the outer side of the bearing (400) to ensure that the light-emitting element (600) remains stable when the vehicle is in motion.

5. A self-generating hub lamp based on a PCB coil as described in claim 4, characterized in that: A bracket (502) is connected to the counterweight (700), and the PCB coil (501) is located between the bracket (502) and the light-emitting element (600).

6. A self-generating hub lamp based on a PCB coil as described in claim 5, characterized in that: The counterweight (700), bracket (502), PCB coil (501), lamp board (503) and light-emitting element (600) are connected together by screws.

7. A self-generating hub lamp based on a PCB coil as described in claim 3, characterized in that: A magnet support plate (202) is connected to the connecting block (300), and a magnet cover plate (203) is connected to the magnet support plate (202). A plurality of magnets (201) are disposed between the magnet support plate (202) and the magnet cover plate (203).

8. A self-generating hub lamp based on a PCB coil as described in claim 7, characterized in that: The surface of the magnet support plate (202) is provided with several partitions, and a placement groove is provided between two adjacent partitions. The magnets (201) are arranged in a ring and placed in the placement groove in sequence.

9. A self-generating hub lamp based on a PCB coil as described in claim 7, characterized in that: The connecting block (300), the bottom shell (100), the magnet support plate (202), and the magnet cover plate (203) are connected together by screws.

10. A self-generating hub lamp based on a PCB coil as described in claim 1, characterized in that: The bottom shell (100) is mounted on the wheel hub by a snap fastener.