An energy recovery electric bicycle controller device
By employing a flexible connection structure and heat dissipation system in the electric bicycle controller, the problem of damage caused by severe vibration has been solved, extending the equipment's lifespan and improving heat dissipation efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN L8STAR TECH CO LTD
- Filing Date
- 2025-04-22
- Publication Date
- 2026-06-02
AI Technical Summary
Existing electric bicycle controllers are prone to damage from severe vibrations due to rigid connections, rendering the devices unusable.
It adopts an elastic connection structure, including a limiting post, first and second springs, a support block and a limiting plate. The elastic element reduces vibration and avoids rigid impact, and the heat sink and cooling fan improve heat dissipation efficiency.
It effectively reduces damage to electronic boards caused by vibration, extends their service life, and improves heat dissipation efficiency.
Smart Images

Figure CN224319625U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an electric bicycle controller, specifically an energy recovery electric bicycle controller device. Background Technology
[0002] With the continuous upgrading of electric bicycle technology and the pursuit of green development, technicians are working to recover and utilize the energy generated during vehicle operation in order to ensure that the vehicles can provide a longer driving range.
[0003] However, existing electric bicycle controllers typically use only an aluminum box to fix the circuit board during use. But during riding, the vehicle often vibrates on bumpy roads, which can easily damage the controller with a rigid connection due to severe vibration, rendering the device unusable. Therefore, an energy recovery electric bicycle controller device with shock absorption function is proposed. Utility Model Content
[0004] To address the shortcomings of existing technologies where rigidly fixed controllers are easily damaged by severe vibrations, this invention provides an energy-recovery electric bicycle controller device.
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0006] This utility model discloses an energy recovery electric bicycle controller device, comprising a fixed shell, an electronic board disposed inside the fixed shell, and two heat sinks with identical structures disposed inside the fixed shell. Two heat-conducting strips are fixedly connected to the side of each heat sink near the electronic board, and the side of each heat-conducting strip near the electronic board is in close contact with the outer surface of the electronic board. Limiting posts are provided at the four corners of the side of each heat sink away from the electronic board. First support posts are fixedly connected to the lower surface of the fixed shell at positions corresponding to the four limiting posts. The outer surface of the first support posts is slidably connected to the inner wall of the limiting posts. First springs are fixedly connected to the lower surfaces of the four first support posts. Support blocks are fixedly connected inside the limiting posts. The lower surface of the first springs is fixedly connected to the upper surface of the support blocks. The inner wall of the fixed shell has grooves arranged in a matrix, and second springs are fixedly connected to the inner walls of each groove. A limiting plate is fixedly connected to the end of each second spring away from the heat sink.
[0007] Four second support columns are fixedly connected to the four corners of the two heat sinks by bolts. On the side of the two heat sinks away from the electronic board, heat sinks are fixedly connected with heat sinks that are equidistantly arranged and intersecting each other. The surface of the heat sinks is provided with recesses that are equidistantly arranged.
[0008] As a preferred embodiment of this utility model, a wire is provided on one side of the electronic board, and a plurality of terminals are fixedly connected to one end of the wire.
[0009] As a preferred embodiment of this utility model, a heat dissipation fan is provided inside the fixed shell, and heat dissipation holes are provided on both sides of the fixed shell in an equidistant arrangement.
[0010] As a preferred embodiment of this utility model, a support plate is fixedly connected inside the cooling fan, a motor is fixedly connected to the right side of the support plate, and the output end of the motor is fixedly connected to the fan blades via a coupling.
[0011] As a preferred embodiment of this utility model, the front and rear sides of the heat sink are tightly fitted to the surface of the limiting plate, and the two heat sinks are evenly distributed on one side of the center position of the heat sink fan.
[0012] The beneficial effects of this utility model are as follows: This energy recovery electric bicycle controller device, by setting a first spring inside the limiting posts on both sides of the electronic board, allows the first spring to generate elastic force on the support block and the first support post, making the support block tightly fit against the surface of the heat sink. Under the push of the heat sinks on both sides, the electronic board is in the middle position of the device. At the same time, the second spring applies force to the limiting plate, making the limiting plates on both sides limit the heat sink in the middle position of the device. When the vehicle passes through bumpy road sections, the electronic board will not be subjected to rigid collisions due to the elastic action of the first and second springs, reducing the vibration of the electronic board and protecting it, thereby extending the service life of the electronic board. Attached Figure Description
[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0014] Figure 1 This is a schematic diagram of the structure of an energy recovery electric bicycle controller device according to the present invention;
[0015] Figure 2 This is a schematic diagram of the heat-conducting strip of an energy-recovery electric bicycle controller device according to this utility model;
[0016] Figure 3 This is a schematic diagram of the heat sink structure of an energy recovery electric bicycle controller device according to this utility model;
[0017] Figure 4 This is a schematic diagram of the cooling fan structure of an energy recovery electric bicycle controller device according to this utility model;
[0018] Figure 5This is a schematic diagram of the limiting plate of an energy recovery electric bicycle controller device according to this utility model;
[0019] Figure 6 This utility model relates to an energy recovery controller device for electric bicycles. Figure 2 A schematic diagram of the structure at point A in the middle.
[0020] In the diagram: 1. Fixed shell; 2. Groove; 3. Wire; 4. Heat dissipation hole; 5. First support column; 6. Limiting column; 7. Support block; 8. First spring; 9. Heat dissipation plate;
[0021] 10. Heat-conducting strip; 11. Electronic board; 12. Heat sink; 13. Recessed hole; 14. Second support column; 15. Limiting plate; 16. Cooling fan; 17. Second spring; 18. Support plate;
[0022] 19. Motor; 20. Fan blade; 21. Terminal block. Detailed Implementation
[0023] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.
[0024] Example: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, this utility model discloses an energy recovery electric bicycle controller device, including a fixed shell 1. An electronic board 11 is disposed inside the fixed shell 1. Two identical heat dissipation plates 9 are disposed inside the fixed shell 1. Two heat-conducting strips 10 are fixedly connected to the side of each heat dissipation plate 9 closest to the electronic board 11. The side of each heat-conducting strip 10 closest to the electronic board 11 is in close contact with the outer surface of the electronic board 11. Limiting posts 6 are provided at the four corners of the side of each heat dissipation plate 9 furthest from the electronic board 11. First support posts 5 are fixedly connected to the lower surface of the fixed shell 1 at positions corresponding to the four limiting posts 6. The outer surface of the first support posts 5 is slidably connected to the inner wall of the limiting posts 6. First springs 8 are fixedly connected to the lower surfaces of the four first support posts 5, and the first springs 8 are used in conjunction with dampers. This is a conventional technical method and will not be discussed in detail.
[0025] A support block 7 is fixedly connected inside the limiting post 6. The lower surface of the first spring 8 is fixedly connected to the upper surface of the support block 7. The inner wall of the fixed shell 1 has grooves 2 arranged in a matrix. The inner wall of each groove 2 is fixedly connected to a second spring 17. The end of the second spring 17 away from the heat sink 12 is fixedly connected to a limiting plate 15. The first spring 8 cooperates with the limiting post 6 to apply a certain force to the heat sink 9. When the device is subjected to an impact force in the vertical direction, the first spring 8 is used to reduce the impact of the fixed shell 1 and the first support post 5 on the support block 7, so that the first support post 5 slides inside the limiting post 6, reducing the rigid impact on the electronic board 11. At the same time, the limiting plate 15 is in close contact with the heat sink 9 under the elastic action of the second spring 17, so that the circuit board is in the middle position of the device. When the fixed box is subjected to a front-back direction, the second spring 17 is used to reduce the vibration transmitted by the device to the electronic board 11, so as to avoid the electronic board 11 being damaged by impact due to severe vibration.
[0026] Four second support columns 14 are fixedly connected to the four corners of the two heat sinks 9 by bolts. On the side of the two heat sinks 9 away from the electronic board 11, heat sink fins 12 are fixedly connected in an equidistant and intersecting manner. The surface of the heat sink fins 12 is provided with equidistant recesses 13. The recesses 13 facilitate the airflow inside the device and improve the heat dissipation efficiency. The heat sink fins 12 are made of copper, which can slow down the insertion of foreign objects and prevent damage to the electronic board 11 when the fixed shell 1 is punctured.
[0027] A wire 3 is provided on one side of the electronic board 11. One end of the wire 3 is fixedly connected to multiple connectors 21, which are used to transmit equipment operation information.
[0028] The fixed shell 1 is equipped with a cooling fan 16 inside, and the fixed shell 1 has heat dissipation holes 4 arranged at equal intervals on both sides. The cooling fan 16 promotes airflow inside the equipment.
[0029] A support plate 18 is fixedly connected inside the cooling fan 16. A motor 19 is fixedly connected to the right side of the support plate 18. The output end of the motor 19 is fixedly connected to the fan blade 20 through a coupling. The motor 19 drives the fan blade 20 to rotate.
[0030] The front and rear sides of the heat sink 9 are tightly attached to the surface of the limiting plate 15. The two heat sinks 9 are evenly distributed on one side of the center position of the heat sink 16. The limiting plate 15 is used to limit the heat sink 9 to the middle position of the equipment.
[0031] During operation, the heat generated by the electronic board 11 is conducted to the heat sink 9 through the heat conduction strip 10, and the heat sink 9's heat dissipation surface area is increased by the heat sink 12. Then, the motor 19 is started, driving the fan blades 20 to rotate. The airflow generated by the fan blades 20 passes through the concave holes 13 and quickly carries away the heat from the surface of the heat sink 12, achieving a further rapid cooling effect on the electronic board 11. Under the elastic action of the first springs 8 on the upper and lower sides of the electronic board 11, the first support column 5 separates from the support block 7, and the first support column 5 can slide inside the limiting column 6, allowing the electronic board 11 to move freely. Plate 11 is fixed in the middle position inside the fixed shell 1, without rigid connection to the inner wall of the fixed shell 1. At the same time, under the elastic action of the second spring 17, the limiting plate 15 is in close contact with one side of the heat sink 9, pushing the heat sink 9 to move towards the middle position. Similarly, the electronic plate 11 is not rigidly connected to the inner wall of the fixed shell 1. When the vehicle passes through bumpy road sections, the electronic plate 11 will reduce the impact force under the elastic action of the second spring 17 and the first spring 8, reducing the possibility of damage to the electronic plate 11 and increasing the service life of the electronic plate 11.
[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. An energy-recovery electric bicycle controller device, comprising a fixed housing (1), characterized in that, An electronic board (11) is disposed inside the fixed shell (1). Two heat sinks (9) with identical structures are disposed inside the fixed shell (1). Two heat conduction strips (10) are fixedly connected to the side of each heat sink (9) near the electronic board (11). The side of each heat conduction strip (10) near the electronic board (11) is in close contact with the outer surface of the electronic board (11). Limiting posts (6) are provided at the four corners of the side of each heat sink (9) away from the electronic board (11). First supports are fixedly connected to the lower surface of the fixed shell (1) at the positions corresponding to the four limiting posts (6). The outer surface of the first support column (5) is slidably connected to the inner wall of the limiting column (6). The lower surfaces of the four first support columns (5) are all fixedly connected to the first spring (8). The inside of the limiting column (6) is fixedly connected to the support block (7). The lower surface of the first spring (8) is fixedly connected to the upper surface of the support block (7). The inner wall of the fixed shell (1) is provided with grooves (2) arranged in a matrix. The inner wall of the grooves (2) is fixedly connected to the second spring (17). The end of the second spring (17) away from the heat sink (12) is fixedly connected to the limiting plate (15).
2. The energy recovery electric bicycle controller device according to claim 1, characterized in that, Four second support columns (14) are fixedly connected to the four corners of the two heat sinks (9) by bolts. On the side of the two heat sinks (9) away from the electronic board (11), heat sinks (12) are fixedly connected in an equidistant and intersecting manner. The surface of the heat sinks (12) is provided with recesses (13) arranged in an equidistant manner.
3. The energy recovery electric bicycle controller device according to claim 1, characterized in that, A wire (3) is provided on one side of the electronic board (11), and a plurality of terminals (21) are fixedly connected to one end of the wire (3).
4. The energy recovery electric bicycle controller device according to claim 1, characterized in that, The fixed shell (1) is equipped with a heat dissipation fan (16) inside, and heat dissipation holes (4) are arranged at equal intervals on both sides of the fixed shell (1).
5. The energy recovery electric bicycle controller device according to claim 4, characterized in that, The cooling fan (16) is internally fixedly connected to a support plate (18), and a motor (19) is fixedly connected to the right side of the support plate (18). The output end of the motor (19) is fixedly connected to a fan blade (20) via a coupling.
6. The energy recovery electric bicycle controller device according to claim 1, characterized in that, The front and rear sides of the heat sink (9) are closely attached to the surface of the limiting plate (15), and the two heat sinks (9) are evenly distributed on one side of the center position of the heat sink (16).