Motor heat dissipation structure for electric tricycle
By combining a water spray and a cooling fan into the motor of an electric tricycle, the problem of insufficient motor heat dissipation is solved, achieving efficient motor cooling and extended service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-03-27
AI Technical Summary
Existing electric tricycle motors suffer from insufficient heat dissipation in high-temperature environments, leading to overheating and damage, which affects their service life and performance.
The cooling structure adopts a combination of water spray and cooling fan. A pressurized water pump delivers water from the reservoir to the fan frame, and the water mist is sprayed out through the water spray nozzle to combine with the airflow for physical cooling. The system is powered by the vehicle's power supply to ensure stable operation.
It effectively improves the heat dissipation efficiency of the motor, extends the service life of the motor, ensures stable operation of the motor in high-temperature environments, and avoids burnout.
Smart Images

Figure CN224054047U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to motor heat dissipation technical field especially relates to a motor heat dissipation structure for electric tricycle. BACKGROUND
[0002] A motor heat dissipation structure for electric tricycle refers to the device for the motor heat dissipation of electric tricycle, and its main role is to improve the heat dissipation efficiency of motor, protect motor from high temperature damage and prolong the service life of motor. Electric tricycle as a convenient means of transport has been widely used in modern society. Its power source is mainly motor.
[0003] However, in the prior art, most of the motors are equipped with axial flow fans for heat dissipation. However, in long-time operation or harsh environment, such as high-temperature weather and heavy-load climbing, it is difficult to quickly and effectively dissipate the large amount of heat generated by the motor, and the accumulation of heat can easily cause the temperature of the motor to continuously rise. At the same time, the heat dissipation effect of the axial flow fan is affected by the installation position of the motor and the surrounding environment, and the effect is limited in narrow space or poor ventilation design. The dust and debris raised during driving also block the air duct, reducing the heat dissipation efficiency. Insufficient heat dissipation can lead to power reduction, increased internal resistance and increased current loss, affecting driving speed, climbing ability and cruising range. More seriously, long-term overheating can cause the motor to burn out, causing the vehicle to be unable to drive. Therefore, a motor heat dissipation structure for electric tricycle is proposed to solve the above problems. SUMMARY
[0004] In order to make up for the above shortcomings, the utility model provides a motor heat dissipation structure for electric tricycle, which aims to improve the low heat dissipation effect of part of the motor of the electric tricycle in the prior art, and to reduce the service life of the motor due to overheating damage.
[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0006] A motor heat dissipation structure for electric tricycle, comprising a skeleton and two connecting plates, the right side of the skeleton is fixedly connected with two strip plates, the right end of the strip plate is rotatably connected with a pull rod, the right end of the two pull rods is rotatably connected with a rear axle, the right side of the rear axle is fixedly connected with a drive motor, the top side of the drive motor is fixedly connected with a support assembly for supporting subsequent components, the top of the support assembly is fixedly connected with a fan frame, the inside of the fan frame is rotatably connected with a heat dissipation fan, the bottom left end of the fan frame is fixedly connected with a plurality of water spray water channels, the front end of the fan frame is fixedly connected with a cover plate through a plurality of bolts, the right end of the fan frame is fixedly connected with a water inlet pipe, the top end of the water inlet pipe is fixedly connected with a pressure water pump, the outside of the pressure water pump is fixedly connected with a water storage kettle, and the outside of the drive motor is fixedly connected with two arc-shaped wind baffles.
[0007] As a further description of the above technical scheme:
[0008] The top side of the skeleton is fixedly connected with support legs at both ends, the top side of the two support legs is fixedly connected with connecting plates, the right part of the proximal side of the two connecting plates is fixedly connected with fixed plates, and the middle part of the proximal side of the two connecting plates is fixedly connected with support plates.
[0009] As a further description of the above technical solution:
[0010] The bottom side of one of the connecting plates is fixedly connected with a protection box, the left end of the protection box is fixedly connected with two small charging ports, the right end of the protection box is fixedly connected with a large charging port, and the right side of the support plate is fixedly connected with a controller.
[0011] As a further description of the above technical solution:
[0012] The support assembly comprises a fan support, the bottom side of the fan support is fixedly connected to the top side of the driving motor, and the top side of the fan support is fixedly connected with a right-angle plate.
[0013] As a further description of the above technical solution:
[0014] The front side of the right-angle plate is fixedly connected to the rear side of the fan frame, and the bottom side left end of the fan frame is provided with a water outlet.
[0015] As a further description of the above technical solution:
[0016] The left side of the two connecting plates is respectively fixedly connected to the right side of the connecting plate at both ends, and the top side of the strip-shaped plate is fixedly connected to the bottom side of the connecting plate.
[0017] As a further description of the above technical solution:
[0018] The heat dissipation fan is installed above the fan support and is located at the center of the driving motor axis, a temperature control switch is installed outside the driving motor, and two strip-shaped openings are formed in the right side of the water storage kettle.
[0019] As a further description of the above technical solution:
[0020] The right side of the fixed plate is fixedly connected to the left side of the water storage kettle, and a water inlet is formed in the top side rear end of the water storage kettle.
[0021] The utility model has the advantages of the following beneficial effects:
[0022] In this invention, water is supplied to the fan frame via an inlet pipe. Water spray channels are located at the four corners of the fan frame's air outlet, with four spray nozzles parallel to the air duct openings. Water is sprayed out from these channels under pressure, forming a water mist. This water mist combines with the airflow generated by the cooling fan to physically cool the motor. The cooling structure is powered by the vehicle's own 12-volt power supply, ensuring stable system operation. The fan bracket is fixed to both ends of the motor with fasteners, ensuring the stability of the cooling fan during operation. This effectively cools the electric tricycle's motor, improving its efficiency and lifespan. Attached Figure Description
[0023] Figure 1 This is a three-dimensional schematic diagram of a heat dissipation structure for an electric motor used in an electric tricycle, as proposed in this utility model.
[0024] Figure 2 This is a schematic diagram of the rear axle structure of a heat dissipation structure for an electric motor in an electric tricycle, as proposed in this utility model.
[0025] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0026] Figure 4 This is a schematic diagram of the fan bracket of the electric tricycle motor heat dissipation structure proposed in this utility model;
[0027] Figure 5 for Figure 1 Enlarged view of section B in the middle.
[0028] Legend:
[0029] 1. Frame; 2. Support leg; 3. Connecting plate; 4. Connecting plate; 5. Fixing plate; 6. Support plate; 7. Strip plate; 8. Tie rod; 9. Rear axle; 10. Drive motor; 11. Fan bracket; 12. Right angle plate; 13. Fan frame; 14. Cooling fan; 15. Water spray channel; 16. Cover plate; 17. Water inlet pipe; 18. Pressurized water pump; 19. Water tank; 20. Water inlet; 21. Protective box; 22. Small charging port; 23. Large charging port; 24. Controller; 25. Arc-shaped airflow baffle. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] Reference Figures 1 to 3The utility model provides an embodiment: a motor heat dissipation structure for electric tricycle, including skeleton 1 and two link plates 4. Skeleton 1 provides the stable support basis for the whole heat dissipation structure. Two link plates 4 then closely link each component together. The top side of skeleton 1 is fixedly connected with support leg 2 in both ends. Support leg 2 stands stably in the top side of skeleton 1 in both ends and provides the solid support force for the component of top. The top side of two support legs 2 is fixedly connected with connecting plate 3. Connecting plate 3 is connected with the top side of two support legs 2 and connects two support legs 2 together, strengthens the stability of whole structure. The left side of two link plates 4 is fixedly connected in the right side both ends of connecting plate 3 respectively. The left side edge of link plate 4 is pasted together with the right side both ends of connecting plate 3, is fixedly connected through welding, ensures the close connection between both;
[0032] The right side of skeleton 1 is fixedly connected with two strip plates 7. Strip plate 7 is fixedly connected with the right side of skeleton 1 through welding and provides the powerful support for the component of subsequent connection. The top side of strip plate 7 is fixedly connected with the bottom side of link plate 4;
[0033] The top side of strip plate 7 and link plate 4 are fixedly connected through welding, ensures the stable and reliable connection between both. The right end of strip plate 7 is rotatably connected with pull rod 8. Pull rod 8 provides an active connecting point for subsequent connection rear axle 9. The right end of two pull rods 8 is rotatably connected with rear axle 9. Rear axle 9 is thick and strong, and the right end of two pull rods 8 is rotatably connected with rear axle 9, so that rear axle 9 can flexibly move within a certain range and adapt to different road conditions. The right side of rear axle 9 is fixedly connected with driving motor 10. Temperature control switch is installed on the outside of driving motor 10, and driving motor 10 is welded on the right side of rear axle 9, which provides continuous power for electric tricycle.
[0034] Referring to Figures 2 to 4The top side of the driving motor 10 is fixedly connected with a support assembly supporting subsequent components. The support assembly is welded on the top side of the driving motor 10, providing support for subsequent components. The support assembly includes a fan bracket 11. The fan bracket 11, as an important part of the support assembly, provides a firm mounting basis for the cooling fan 14. The bottom side of the fan bracket 11 is fixedly connected to the top side of the driving motor 10. The bottom side of the fan bracket 11 is fixedly connected to the top side of the driving motor 10 by welding, ensuring that the fan bracket 11 does not shake when the driving motor 10 is running. The top side of the fan bracket 11 is fixedly connected with a right angle plate 12. The right angle plate 12 is fixed on the top side of the fan bracket 11 by welding, providing a stable support and connection point for the fan frame 13. The top of the support assembly is fixedly connected with the fan frame 13. The fan frame 13 is fixed on the top of the support assembly by welding, providing a safe containing space for the cooling fan 14 and other related components;
[0035] The front side of the right angle plate 12 is fixedly connected to the rear side of the fan frame 13. The front side of the right angle plate 12 is closely connected to the rear side of the fan frame 13, ensuring stable installation of the fan frame 13. The bottom left end of the fan frame 13 is provided with a water outlet. The water outlet is like a small channel, providing a path for water in the fan frame 13 to flow out. The fan frame 13 is rotatably connected with a cooling fan 14. The cooling fan 14 is flexibly installed in the interior of the fan frame 13 and can freely rotate to provide effective cooling for the driving motor 10. The cooling fan 14 is installed above the fan bracket 11 and is located at the center of the driving motor 10 axis, ensuring the maximization of the cooling effect. The bottom left end of the fan frame 13 is fixedly connected with a plurality of water spray channels 15. The plurality of water spray channels 15 are neatly arranged at the bottom left end of the fan frame 13, providing a more efficient way of cooling. The front end of the fan frame 13 is fixedly connected with a cover plate 16 through a plurality of bolts. The cover plate 16 is fixedly connected to the front end of the fan frame 13 through a plurality of bolts. The right end of the fan frame 13 is fixedly connected with a water inlet pipe 17;
[0036] The water inlet pipe 17 is firmly fixed at the right end of the fan frame 13, providing a channel for the inflow of water. The top end of the water inlet pipe 17 is fixedly connected with the pressurized water pump 18. The pressurized water pump 18 is closely connected with the top end of the water inlet pipe 17, providing strong power for the flow of water. The outside of the pressurized water pump 18 is fixedly connected with the water storage pot 19. The water storage pot 19 is like a huge water storage container, and the pressurized water pump 18 is firmly fixed outside it, providing sufficient water source for the heat dissipation system. The right side of the fixed plate 5 is fixedly connected to the left side of the water storage pot 19. The right side of the fixed plate 5 is connected to the left side of the water storage pot 19, providing stable support for the water storage pot 19. The top side of the water storage pot 19 is provided with a water inlet 20 at the rear end. The water inlet 20 provides a channel for the water storage pot 19 to supplement the water source. The right side of the water storage pot 19 is provided with two strip-shaped openings. One of the two strip-shaped openings is fixedly connected with the protection box 21 at the bottom side of the left end of the one of the two strip-shaped openings. The protection box 21 is fixed at the bottom side of the left end of the one of the two strip-shaped openings, providing effective protection for the internal components.
[0037] Referring to Figure 1 and Figure 5 , the left end of the protection box 21 is fixedly connected with two small charging ports 22. The two small charging ports 22 are neatly arranged at the left end of the protection box 21, providing convenient charging interfaces for specific devices. The right end of the protection box 21 is fixedly connected with a large charging port 23. The large charging port 23 is firmly fixed at the right end of the protection box 21, providing a reliable charging interface for devices that require a larger current. The right side of the support plate 6 is fixedly connected with a controller 24. The controller 24 is accurately fixed at the right side of the support plate 6, providing precise control and adjustment for the operation of the entire electric tricycle. The outside of the drive motor 10 is fixedly connected with two arc-shaped wind barrier plates 25, preventing the overflow of cooling wind, allowing better heat dissipation of the drive motor 10 housing, and improving the overall heat dissipation capacity.
[0038] Working principle: The cooling fan 14 is installed above the motor fan bracket 11 and is placed at the center of the motor axis. When the motor is working, the cooling fan 14 starts to rotate, generating airflow to cool the motor. At the same time, the arc-shaped wind barrier plates 25 on both sides of the drive motor 10 can prevent the overflow of cooling wind, ensuring that the airflow is concentrated around the motor, improving the cooling efficiency. Above the cooling fan 14 is the water storage pot 19, which contains the pressurized water pump 18. When the motor temperature reaches fifty degrees, the temperature control switch on the side of the motor automatically starts. The pressurized water pump 18 starts to work, pumping water from the water storage pot 19 through the water inlet pipe 17 to the fan frame 13. At the four corners of the outlet of the fan frame 13, there are water spray channels 15. The four water spray openings are parallel to the air duct openings. Water is sprayed out of the water spray channels 15 under pressure, forming a water mist. The water mist combines with the airflow generated by the cooling fan 14 to physically cool the motor.
[0039] The water spray is not affected by the ambient temperature, and can continuously cool the motor. When the water spray adheres to the surface of the motor, the heat of the motor itself can make the water spray evaporate rapidly, and a large amount of heat is taken away in the evaporation process, so that the surface temperature of the motor is kept in a constant working state, and the motor surface is not damaged.
[0040] In addition, the heat dissipation structure is powered by a twelve-volt power supply on the vehicle, ensuring stable operation of the system. The fan bracket 11 is fixed to both ends of the motor by fasteners, ensuring the stability of the cooling fan 14 during operation. It can effectively cool the motor of the electric tricycle, improve the working efficiency and service life of the motor.
[0041] Finally, it should be noted that the above only describes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application 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 replacements to some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. An electric motor cooling structure for an electrically powered three-wheeled vehicle, comprising a frame (1) and two adapter plates (4), characterized in that: The right side of the skeleton (1) is fixedly connected with two strip-shaped plates (7), the right ends of the strip-shaped plates (7) are rotatably connected with pull rods (8), the right ends of the two pull rods (8) are rotatably connected with rear axles (9), the right side of the rear axle (9) is fixedly connected with a driving motor (10), the top side of the driving motor (10) is fixedly connected with a support assembly supporting subsequent components, the top of the support assembly is fixedly connected with a fan frame (13), the inside of the fan frame (13) is rotatably connected with a cooling fan (14), the bottom left end of the fan frame (13) is fixedly connected with a plurality of water spray channels (15), the front end of the fan frame (13) is fixedly connected with a cover plate (16) through a plurality of bolts, the right end of the fan frame (13) is fixedly connected with a water inlet pipe (17), the top end of the water inlet pipe (17) is fixedly connected with a pressurized water pump (18), the outside of the pressurized water pump (18) is fixedly connected with a water storage kettle (19), and the outside of the driving motor (10) is fixedly connected with two arc-shaped wind baffles (25).
2. The motor heat dissipation structure for an electrically driven tricycle according to claim 1, characterized in that: The top side of the skeleton (1) is fixedly connected with support legs (2) at the front and rear ends, the top side of the two support legs (2) is fixedly connected with a connecting plate (3), the right side of the two connecting plates (3) is fixedly connected with a fixed plate (5), and the right side of the two fixed plates (5) is fixedly connected with a support plate (6).
3. The motor heat dissipation structure for an electrically driven tricycle according to claim 2, characterized in that: The left end of the support plate (6) is fixedly connected with a protection box (21), the left end of the protection box (21) is fixedly connected with two small charging ports (22), the right end of the protection box (21) is fixedly connected with a large charging port (23), and the right side of the support plate (6) is fixedly connected with a controller (24).
4. The motor heat dissipation structure for an electrically driven tricycle according to claim 1, characterized in that: The support assembly comprises a fan support (11), and the bottom side of the fan support (11) is fixedly connected to the top side of the driving motor (10).
5. The motor heat dissipation structure for an electrically driven tricycle according to claim 4, characterized in that: The front side of the right angle plate (12) is fixedly connected to the rear side of the fan frame (13), and the bottom left end of the fan frame (13) is provided with a water outlet.
6. The motor heat dissipation structure for an electrically driven tricycle according to claim 2, characterized by: The left side of the two connecting plates (3) is fixedly connected to the right side of the two support legs (2), and the top side of the two support plates (6) is fixedly connected to the bottom side of the two connecting plates (3).
7. The motor heat dissipation structure for an electrically driven tricycle according to claim 1, characterized by: The cooling fan (14) is installed above the fan support (11) and is located at the center of the axis of the driving motor (10), a temperature control switch is installed on the outside of the driving motor (10), and two strip-shaped openings are formed in the right side of the water storage kettle (19).
8. The motor heat dissipation structure for an electrically driven tricycle according to claim 2, characterized by: The right side of the fixed plate (5) is fixedly connected to the left side of the water storage kettle (19), and the top rear end of the water storage kettle (19) is provided with a water inlet (20).