High-efficiency heat conduction assembly for micromotor
By combining thermally conductive aluminum plates, silicone, and fins, the problem of low heat dissipation efficiency of micro motors is solved, achieving efficient heat transfer and dissipation, and extending the service life of micro motors.
Patent Information
- Application Number
- CN202520222872.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-12
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-12
AI Technical Summary
In existing micro motors, internal heat is difficult to dissipate effectively during operation, leading to temperature rise and affecting performance and lifespan.
It adopts a combination structure of thermally conductive aluminum plate, thermally conductive silicone and thermally conductive fin plate, and improves heat transfer and heat dissipation efficiency through the design of ventilation and heat dissipation ports, combined with thermally conductive aluminum plate made of aluminum alloy and soft thermally conductive silicone.
It effectively dissipates heat from inside the micro motor, improves thermal conductivity and stability, reduces heat buildup, and extends the service life of the micro motor.
Smart Images

Figure CN223843628U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of micro motor technology, and in particular to a high-efficiency heat-conducting component for micro motors. Background Technology
[0002] Micro motors, also known as miniature electric motors, are miniaturized electric motors commonly used in precision instruments, household appliances, medical equipment, and other fields. When micro motors are running, the temperature rises due to the heat generated by the current passing through the coil, as well as friction and iron loss. If heat is not dissipated in time, it will affect their performance and lifespan. Therefore, micro motors require effective heat dissipation design to keep them operating within a safe temperature range.
[0003] A search revealed that the document with publication number "CN215956189U" mentions "This utility model relates to a micro motor with high-efficiency heat dissipation, belonging to the field of electrical engineering, including a heat dissipation mechanism, a main body mechanism installed inside the heat dissipation mechanism, a filter mechanism connected to the back of the heat dissipation mechanism, a protective shell including the main body mechanism including a motor shell, and a flow cavity provided between the protective shell and the motor shell." Its beneficial effects during use are: through the arrangement of the flow cavity and the guide plate, during the use of this utility model, the cooling fan rotates synchronously with the rotation of the power shaft, and the cooling fan... The airflow generated by the movement blows into the interior of the circulation cavity. The high-speed airflow over the top of the heat dissipation vent reduces the pressure above the vent. The pressure difference between the top and bottom of the vent allows the heat inside the motor casing to be quickly drawn away and discharged to the outside with the airflow in the circulation cavity. This allows the present invention to dissipate the generated heat quickly and efficiently. However, during the use of the micro motor, simply relying on internal ventilation for heat dissipation can easily lead to heat accumulation inside or on the surface of the micro motor, thereby aggravating the increase in surface temperature and causing an increase in internal temperature. Therefore, it is necessary to improve the external heat dissipation efficiency to improve the heat dissipation efficiency of the surface structure.
[0004] Therefore, we provide a high-efficiency heat-conducting component for micro motors to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide a high-efficiency heat-conducting component for micro motors, thereby solving the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency heat-conducting component for a micro motor, comprising a micro motor body and a micro motor heat-conducting component, wherein the micro motor heat-conducting component includes a vent installed on the outside of the micro motor body, a heat-conducting aluminum plate is disposed in the middle of the micro motor body, a heat dissipation port is disposed on the surface of the heat-conducting aluminum plate, a heat-conducting silicone is disposed on the outside of the heat-conducting aluminum plate, a mounting base is disposed at the lower outer end of the heat-conducting silicone, a heat-conducting fin is disposed at the upper outer end of the heat-conducting silicone, and heat dissipation fins are disposed on the outer sides of the heat-conducting fin.
[0007] Preferably, the ventilation openings and the micro motor body are symmetrically arranged on the left and right sides, and the ventilation openings and the heat dissipation port form a heat dissipation structure.
[0008] Preferably, the thermally conductive aluminum plate is welded to the micro motor body, and the thermally conductive aluminum plate is made of aluminum alloy.
[0009] Preferably, the thermally conductive silicone and the thermally conductive aluminum plate are connected by a slot, and the thermally conductive silicone and the thermally conductive aluminum plate are tightly bonded together.
[0010] Preferably, the mounting base and the heat-conducting fins are connected by screws, the mounting base and the heat-conducting fins have the same inner diameter, and the mounting base is in close contact with the heat-conducting fins and the thermally conductive silicone.
[0011] Preferably, the heat dissipation fins and the heat conduction fins are welded together, and the heat dissipation fins and the heat conduction fins are arranged in eleven groups at equal distances.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. When needed, the vent can allow some flow of hot air accumulated inside the micro motor body. At the same time, the internal air pressure flows, and some heat will diffuse outward and be discharged through the heat exhaust port into the thermally conductive silicone, improving the heat exchange efficiency of the vent. The thermally conductive aluminum plate will absorb the heat inside the micro motor body. The thermally conductive aluminum plate made of aluminum alloy has the advantages of high thermal conductivity and light weight, which can improve the heat conduction rate.
[0014] 2. The heat accumulated on the thermally conductive aluminum plate is conducted through the thermally conductive silicone, thus preventing excessive heat buildup within the aluminum plate and improving its thermal stability. The silicone is also relatively soft, allowing it to better conform to the aluminum plate and the inner wall of the mounting bracket, increasing the heat transfer area. Furthermore, the mounting bracket and thermal fins are mutually fixed, enabling quick installation and minimizing damage to the silicone. This also facilitates future replacements and repairs. The heat dissipation fins further increase the heat dissipation area of the thermal fins, assisting in heat dissipation. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the overall disassembled structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the overall structure of the micro motor body of this utility model;
[0018] Figure 4 This is a schematic diagram showing the disassembled structure of the thermally conductive silicone and heat dissipation fins of this utility model.
[0019] The following are the labels in the diagram: 1. Micro motor body; 2. Micro motor heat conduction component; 201. Vent; 202. Heat conduction aluminum plate; 203. Heat exhaust port; 204. Heat conduction silicone; 205. Mounting base; 206. Heat conduction fin plate; 207. Heat dissipation fin. Detailed Implementation
[0020] 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.
[0021] Please see Figure 1-4 As shown, this utility model provides a technical solution: a high-efficiency heat-conducting component for a micro motor, including a micro motor body 1 and a micro motor heat-conducting component 2. The micro motor heat-conducting component 2 includes a vent 201 installed on the outside of the micro motor body 1. A heat-conducting aluminum plate 202 is provided in the middle of the micro motor body 1. A heat dissipation port 203 is provided on the surface of the heat-conducting aluminum plate 202. A heat-conducting silicone 204 is provided on the outside of the heat-conducting aluminum plate 202. A mounting base 205 is provided at the lower outer end of the heat-conducting silicone 204. A heat-conducting fin plate 206 is provided at the upper outer end of the heat-conducting silicone 204. Heat dissipation fins 207 are provided on the outer side of each heat-conducting fin plate 206.
[0022] Furthermore, the vent 201 and the micro motor body 1 are symmetrically arranged on the left and right sides. The vent 201 and the heat exhaust port 203 form a heat dissipation structure. When needed, the vent 201 can circulate the hot air accumulated inside the micro motor body 1 to a certain extent. At the same time, the internal air pressure circulates, and some heat will diffuse outward and be discharged through the heat exhaust port 203 into the thermally conductive silicone 204, thereby improving the heat exchange efficiency of the vent 201.
[0023] Furthermore, the heat-conducting aluminum plate 202 is welded to the micro motor body 1. The heat-conducting aluminum plate 202 is made of aluminum alloy. When it is needed, the heat-conducting aluminum plate 202 will absorb the heat inside the micro motor body 1. The heat-conducting aluminum plate 202 made of aluminum alloy has the advantages of high thermal conductivity and light weight, which can improve the heat conduction rate.
[0024] Furthermore, the thermally conductive silicone 204 and the thermally conductive aluminum plate 202 are connected by a slot, and the thermally conductive silicone 204 and the thermally conductive aluminum plate 202 are tightly bonded together. When needed, the heat accumulated in the thermally conductive aluminum plate 202 will be conducted through the thermally conductive silicone 204, thereby preventing a large amount of heat from accumulating inside the thermally conductive aluminum plate 202, thus improving the thermal conductivity stability of the thermally conductive aluminum plate 202. In addition, the thermally conductive silicone 204 is relatively soft and can fit more closely to the inner wall of the thermally conductive aluminum plate 202 and the mounting base 205, thereby increasing the heat transfer area.
[0025] Furthermore, the mounting base 205 and the heat-conducting fin 206 are connected by screws. The inner diameters of the mounting base 205 and the heat-conducting fin 206 are the same. The mounting base 205, the heat-conducting fin 206, and the thermal conductive silicone 204 fit tightly together. When needed, the mounting base 205 and the heat-conducting fin 206 are fixed together, which allows for quick installation and reduces damage to the thermal conductive silicone 204. It also makes replacement and maintenance more convenient in the future.
[0026] Furthermore, the heat dissipation fins 207 and the heat conduction fins 206 are welded together, and the heat dissipation fins 207 and the heat conduction fins 206 are arranged in eleven groups at equal distances. When needed, the heat dissipation fins 207 can increase the heat dissipation area of the heat conduction fins 206, thereby assisting the heat conduction fins 206 in heat dissipation.
[0027] Working principle: A high-efficiency thermal conductive component for micro motors is moved to the working position. In use, firstly, thermally conductive silicone 204 is fitted onto the outside of the thermally conductive aluminum plate 202 in the middle of the micro motor body 1. Then, the mounting base 205 and thermally conductive fins 206 are fitted onto the outside of the thermally conductive silicone 204 and fixed with external bolts. Secondly, during use, the internal components of the micro motor body 1 generate a certain amount of heat. The hot air expands, and the vent 201 exhausts a certain amount of heat, reducing the heat buildup pressure inside the micro motor body 1. The heat is transferred to the thermally conductive silicone 204 through the heat exhaust port 203 and the thermally conductive aluminum plate 202. The thermally conductive silicone 204 then transfers the heat to the heat dissipation fins 207 for heat dissipation. This completes the use of the high-efficiency thermal conductive component for micro motors.
[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A high-efficiency heat-conducting component for a micro motor, comprising a micro motor body (1) and a micro motor heat-conducting component (2), characterized in that: The micro motor heat-conducting component (2) includes a vent (201) installed on the outside of the micro motor body (1), a heat-conducting aluminum plate (202) is provided in the middle of the micro motor body (1), a heat dissipation port (203) is provided on the surface of the heat-conducting aluminum plate (202), a heat-conducting silicone (204) is provided on the outside of the heat-conducting aluminum plate (202), a mounting base (205) is provided at the lower end of the outside of the heat-conducting silicone (204), a heat-conducting fin plate (206) is provided at the upper end of the outside of the heat-conducting silicone (204), and heat dissipation fins (207) are provided on the outside of the heat-conducting fin plate (206).
2. The high-efficiency heat-conducting component for micro-motors according to claim 1, characterized in that, The ventilation opening (201) and the micro motor body (1) are symmetrically arranged on the left and right sides, and the ventilation opening (201) and the heat dissipation port (203) form a heat dissipation structure.
3. The high-efficiency heat-conducting component for micro-motors according to claim 1, characterized in that, The heat-conducting aluminum plate (202) is welded to the micro motor body (1), and the heat-conducting aluminum plate (202) is made of aluminum alloy.
4. The high-efficiency heat-conducting component for micro-motors according to claim 1, characterized in that, The thermally conductive silicone (204) and the thermally conductive aluminum plate (202) are connected by a slot, and the thermally conductive silicone (204) and the thermally conductive aluminum plate (202) are tightly bonded together.
5. The high-efficiency heat-conducting component for micro-motors according to claim 1, characterized in that, The mounting base (205) and the heat-conducting fin (206) are connected by screws. The mounting base (205) and the heat-conducting fin (206) have the same inner diameter. The mounting base (205) is in close contact with the heat-conducting fin (206) and the heat-conducting silicone (204).
6. The high-efficiency heat-conducting component for micro-motors according to claim 1, characterized in that, The heat dissipation fins (207) and the heat conduction fins (206) are welded together, and the heat dissipation fins (207) and the heat conduction fins (206) are arranged in eleven groups at equal distances.