Efficient hub motor with electromagnetic brake

Abstract

The utility model provides a high-efficiency wheel hub motor with an electromagnetic brake, which belongs to the technical field of wheel hub motors and comprises a wheel hub motor body, the wheel hub motor body is provided with a placing cavity, the placing cavity is provided with a plurality of groups of compartments and placing plates, the wheel hub motor body is provided with a semiconductor chilling plate, and the semiconductor chilling plate is provided with an electromagnetic brake. A heat dissipation aluminum sheet is arranged on one side of the semiconductor chilling plate, a fan is arranged on one partition bin, a temperature sensor is arranged on the other partition bin, an air suction pipe is arranged on one side of the fan, one end of the air suction pipe is connected with one partition bin, a heat insulation layer is arranged on the placing plate, reinforcing ribs are arranged on the heat insulation layer, and a filling layer is arranged between the reinforcing ribs. According to the device, by arranging a semiconductor chilling plate, a heat dissipation aluminum sheet, a fan, a temperature sensor and heat dissipation fins, the temperature of the hub motor can be controlled, and the heat dissipation performance of the device is improved; the reinforcing ribs are arranged on the heat insulation layer, and the filling layer made of the aerogel rubber material is filled, so that the structural strength and the heat insulation effect of the heat insulation layer can be enhanced.

Description

Technical Field

[0001] This utility model belongs to the field of hub motor technology, and more specifically, it relates to a high-efficiency hub motor with an electromagnetic brake. Background Technology

[0002] In the field of electric vehicle hub motors, hub motors with electromagnetic brakes are a commonly used integrated power and braking component, widely applied in the drive and braking systems of electric vehicles to facilitate efficient driving and reliable braking. However, traditional devices lack heat dissipation capabilities, resulting in the inability to effectively dissipate the large amount of heat generated during motor operation. This leads to excessively high internal motor temperatures, affecting not only the motor's efficiency and performance stability but also accelerating the aging of internal components and reducing the motor's lifespan. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a high-efficiency hub motor with an electromagnetic brake, thus solving the technical problem that traditional devices lack heat dissipation functions and cannot effectively dissipate internal heat in a timely manner.

[0004] The purpose and effectiveness of this utility model's high-efficiency hub motor with an electromagnetic brake are achieved through the following specific technical means:

[0005] A high-efficiency hub motor with an electromagnetic brake includes a hub motor body, a placement cavity on the hub motor body, multiple sets of compartments and a placement plate on the placement cavity, a semiconductor cooling chip on the hub motor body, a heat dissipation aluminum fin on one side of the semiconductor cooling chip, a fan on one set of compartments, a temperature sensor on another set of compartments, an air intake pipe on one side of the fan, one end of the air intake pipe being connected to one set of compartments, a heat insulation layer on the placement plate, reinforcing ribs on the heat insulation layer, and a filling layer between the reinforcing ribs.

[0006] According to a preferred embodiment, the hub motor body is provided with heat dissipation fins, the heat dissipation fins are wavy and the heat dissipation fins are evenly distributed along the circumference of the hub motor body.

[0007] According to a preferred embodiment, a first protective plate is provided on one side of the hub motor body, and an air outlet is provided on the first protective plate; a second protective plate is provided on the other side of the hub motor body.

[0008] According to a preferred embodiment, a sealing ring is provided between the hub motor body and the first protective plate, and multiple sets of heat dissipation holes are provided on the second protective plate.

[0009] According to a preferred embodiment, the first protective plate and the second protective plate are provided with multiple sets of bolts, the second protective plate is connected to the hub motor body through the multiple sets of bolts, and the multiple sets of bolts pass through the first protective plate and the sealing ring to connect to the hub motor body.

[0010] According to a preferred embodiment, the reinforcing rib is snapped onto the heat insulation layer, which is made of ceramic fiber.

[0011] According to a preferred embodiment, the filler layer is made of aerogel rubber and is located between the insulation layers.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This device, through the integration of a semiconductor cooling chip, heat sink, fan, temperature sensor, and heat dissipation fins, enables users to effectively control the temperature of the hub motor, thus improving the device's heat dissipation performance. After the temperature sensor monitors the motor temperature in real time, users can adjust the heat dissipation intensity by controlling the operation of the semiconductor cooling chip and fan, allowing them to respond according to the actual heat generation of the motor and improving the device's ability to operate stably under different conditions.

[0014] 2. When using this device, the user can connect the first and second protective plates to the hub motor body with bolts and seal them with sealing rings to effectively protect the internal structure of the hub motor body. This eliminates concerns about external dust, moisture, and other impurities affecting motor performance, thus improving the device's protective performance. Furthermore, by setting reinforcing ribs in the heat insulation layer and filling it with an aerogel rubber material, the device enhances the structural strength and heat insulation effect of the heat insulation layer, isolates external heat transfer, reduces energy loss for the user, and improves the energy utilization efficiency of the device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the assembled structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the insulation layer structure;

[0018] Figure 4 This is a schematic diagram of the heat dissipation component structure;

[0019] Figure 5 This is a schematic diagram of the structure of a semiconductor cooling chip and a heat sink aluminum sheet.

[0020] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0021] 11. Hub motor body; 12. Compartment; 13. Placement plate; 14. Semiconductor cooling chip; 15. Heat sink aluminum fin; 16. Fan; 17. Temperature sensor; 26. Air intake pipe; 18. Heat insulation layer; 19. Reinforcing rib; 21. Filling layer; 22. Heat sink fin; 23. First protective plate; 24. Second protective plate; 25. Sealing ring. Detailed Implementation

[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the technical solution of this utility model, but should not be used to limit the scope of protection of this utility model.

[0023] Example:

[0024] like Figures 1 to 3As shown, this utility model provides a high-efficiency hub motor with an electromagnetic brake. The hub motor body 11 provides power output and braking function for the vehicle. It has a placement cavity for accommodating and arranging various components, providing a spatial framework for the entire internal structure of the motor. A partition 12 is set on the placement cavity, dividing the cavity into sections, allowing for the categorized placement of different functional components, which helps to rationally plan space and optimize airflow. A placement plate 13 is also located on the placement cavity, providing a support platform for other components, making the installation of each component more stable. A semiconductor cooling chip 14 is set on the hub motor body 11, with its cold side in contact with the heat-generating part, absorbing heat to achieve cooling, reducing the motor temperature, and ensuring that the motor operates efficiently at a suitable temperature. A heat dissipation aluminum fin 15 is connected to one side of the semiconductor cooling chip 14, in contact with the hot side of the semiconductor cooling chip 14. With its good thermal conductivity, it quickly conducts the heat generated by the semiconductor cooling chip 14 away, increasing the heat dissipation area, improving heat dissipation efficiency, and ensuring that the cooling effect of the semiconductor cooling chip 14 is continuous and stable. A fan 16 is mounted on one of the compartments 12 as an aerodynamic component. Its rotation generates airflow, accelerating air movement and aiding in heat dissipation. A temperature sensor 17 is mounted on another compartment 12, monitoring the internal temperature of the motor in real time and feeding the temperature data back to the control system. This provides a basis for adjusting the operation of the thermoelectric cooler 14 and the fan 16, achieving temperature control. An intake duct 26 is located to one side of the fan 16, with one end connected to one of the compartments 12. The intake duct 26 absorbs and conducts internal heat. A heat insulation layer 18, made of ceramic fiber, is mounted on the mounting plate 13. It prevents heat transfer from the motor's interior to other unnecessary parts, reducing heat loss and maintaining a stable internal temperature field. Reinforcing ribs 19 are mounted on the heat insulation layer 18, securing it to the insulation layer 18 and enhancing its structural strength. This makes it less susceptible to damage from vibrations and external forces during motor operation, ensuring the long-term effectiveness of the heat insulation layer 18. The filling layer 21 is located between the reinforcing ribs 19 and between the heat insulation layers 18. It is made of aerosol rubber, which has good thermal conductivity and good flexibility, further enhancing the heat insulation effect, reducing the damage to the heat insulation layer 18 caused by motor vibration, and improving the stability and reliability of the entire heat insulation structure. The heat dissipation fins 22 are set on the hub motor body 11, and are wavy and evenly distributed along the circumference of the hub motor body 11. The wavy design increases the contact area between the heat dissipation fins 22 and the air, and the even distribution ensures the uniformity of heat dissipation in the circumferential direction of the motor, so as to quickly dissipate the heat inside the motor to the outside and effectively reduce the overall temperature of the motor.The first protective plate 23 is located on one side of the hub motor body 11, and has an air outlet. It protects one side of the motor from external objects colliding with the internal components of the motor. The air outlet is used to expel hot air from inside the motor and promote air circulation. The second protective plate 24 is located on the other side of the hub motor body 11, and similarly protects the other side of the motor. The sealing ring 25 is located between the hub motor body 11 and the first protective plate 23, fitting between the two to form a sealing structure. This prevents external impurities such as dust and moisture from entering the motor, avoiding motor failure due to impurity intrusion and extending the motor's service life. The second protective plate 24 has multiple sets of heat dissipation holes, which help to expel hot air from inside the motor. These holes work in conjunction with the air outlet of the first protective plate 23 and the internal air circulation system to further enhance heat dissipation efficiency. Multiple sets of bolts are provided on the first protective plate 23 and the second protective plate 24. The second protective plate 24 is connected to the hub motor body 11 through multiple sets of bolts. The multiple sets of bolts pass through the first protective plate 23 and the sealing ring 25 in sequence and are then connected to the hub motor body 11, which facilitates installation and disassembly, while ensuring the sealing between the protective plate and the motor body, and ensuring the effective realization of protection and heat dissipation functions.

[0025] like Figures 2 to 5As shown, when using the device, the hub motor body 11 is installed at the wheel hub of the vehicle, providing power output and braking functions. The hub motor body 11 has a storage cavity to accommodate various internal components. The compartments 12 within the storage cavity divide it into sections, allowing the user to categorize and place components according to their function, thus optimizing space utilization and influencing airflow within the motor. A placement plate 13 is located within the storage cavity, providing support for other components. A thermoelectric cooler 14 is mounted on the hub motor body 11, with its cold side close to the heat-generating parts of the motor. When the motor generates heat during operation, the thermoelectric cooler 14 absorbs the heat and lowers the temperature, ensuring that the motor operates efficiently and stably at a suitable temperature. A heat sink 15 is connected to one side of the thermoelectric cooler 14 and is in contact with the hot side of the thermoelectric cooler 14. It conducts heat with its good thermal conductivity, increasing the heat dissipation area to improve heat dissipation efficiency. A fan 16 is installed on one set of compartments 12. The fan 16 rotates to circulate air and assist in heat dissipation. A temperature sensor 17 is installed on another set of compartments 12. The temperature sensor 17 monitors the internal temperature of the motor in real time and feeds the temperature data back to the control system to adjust the operation of the thermoelectric cooler 14 and the fan 16. A suction pipe 26 is connected to one side of the fan 16. One end of the suction pipe 26 is connected to one of the compartments 12, which together with the fan 16 absorbs heat. A heat insulation layer 18 is laid on the placement plate 13. The heat insulation layer 18 is made of ceramic fiber. Utilizing the low thermal conductivity of ceramic fiber, it blocks the transfer of heat from the inside of the motor to other parts, reduces heat loss, and maintains a stable internal temperature of the motor. Reinforcing ribs 19 are installed on the heat insulation layer 18. The reinforcing ribs 19 enhance the structural strength of the heat insulation layer 18, making it less susceptible to damage when the motor vibrates or is subjected to external forces, ensuring that the heat insulation layer 18 can perform its heat insulation function for a long time. A filling layer 21 is set between the reinforcing ribs 19. The filling layer 21 is made of aerosol rubber and is located between the heat insulation layers 18. The low thermal conductivity of aerosol rubber further enhances the heat insulation effect, reduces damage to the heat insulation layer 18, and improves the stability and reliability of the entire heat insulation structure.

[0026] The specific usage and function of this embodiment are as follows:

[0027] When using this device, the hub motor body 11 is first installed at the vehicle's wheel hub to provide power and braking. The placement cavity of the hub motor body 11 accommodates various components. The compartments 12 are divided for easy classification and placement of components, optimizing space and airflow. The placement plate 13 provides support. The semiconductor cooling chip 14 is attached to the heat-generating area of ​​the motor to absorb heat and cool it down. The heat sink aluminum fin 15 connects to its hot surface to conduct heat and improve heat dissipation efficiency. The fan 16 is installed in one set of compartments 12, and its rotation accelerates airflow to assist in heat dissipation. The temperature sensor 17 is located in another compartment 12 to monitor the temperature in real time and provide feedback data. The air intake pipe 26 on one side of the fan 16 absorbs internal heat and allows the internal heat to be dissipated from the fan 16. The heat insulation layer 18 on the placement plate 13 is made of ceramic fiber material to block heat transfer. The reinforcing ribs 19 on the heat insulation layer 18 enhance the structural strength. The aerosolized rubber filling layer 21 between the reinforcing ribs 19 further insulates heat and buffers vibration, improving the stability and reliability of the heat insulation structure.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments.

Claims

1. A high-efficiency hub motor with an electromagnetic brake, comprising a hub motor body (11), characterized in that: The hub motor body (11) has a placement cavity, and the placement cavity is provided with multiple sets of compartments (12) and a placement plate (13). The hub motor body (11) is provided with a semiconductor cooling chip (14), and a heat dissipation aluminum fin (15) is provided on one side of the semiconductor cooling chip (14). A fan (16) is provided on one set of compartments (12), and a temperature sensor (17) is provided on another set of compartments (12). An air suction pipe (26) is provided on one side of the fan (16), and one end of the air suction pipe (26) is connected to one set of compartments (12). A heat insulation layer (18) is provided on the placement plate (13), and a reinforcing rib (19) is provided on the heat insulation layer (18). A filling layer (21) is provided between the reinforcing ribs (19).

2. The high-efficiency hub motor with electromagnetic brake according to claim 1, characterized in that: The hub motor body (11) is provided with heat dissipation fins (22), which are wavy and are evenly distributed along the circumference of the hub motor body (11).

3. The high-efficiency hub motor with electromagnetic brake according to claim 1, characterized in that: The hub motor body (11) has a first protective plate (23) on one side, and an air outlet is provided on the first protective plate (23). The hub motor body (11) has a second protective plate (24) on the other side.

4. A high-efficiency hub motor with an electromagnetic brake according to claim 3, characterized in that: A sealing ring (25) is provided between the hub motor body (11) and the first protective plate (23), and multiple sets of heat dissipation holes are provided on the second protective plate (24).

5. A high-efficiency hub motor with an electromagnetic brake according to claim 4, characterized in that: Multiple sets of bolts are provided on the first protective plate (23) and the second protective plate (24). The second protective plate (24) is connected to the hub motor body (11) through the multiple sets of bolts. The multiple sets of bolts pass through the first protective plate (23) and the sealing ring (25) and are connected to the hub motor body (11).

6. A high-efficiency hub motor with an electromagnetic brake according to claim 1, characterized in that: The reinforcing rib (19) is attached to the heat insulation layer (18), which is made of ceramic fiber.

7. A high-efficiency hub motor with an electromagnetic brake according to claim 6, characterized in that: The filler layer (21) is made of aerogel rubber and is located between the heat insulation layers (18).

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