Inner gear ring structure of planetary gearbox motor
By introducing heat absorption and thermal conduction components and multi-heat dissipation fin structures into the internal ring of the micro motor, the problems of low heat dissipation efficiency and insufficient strength of the micro motor are solved, efficient heat dissipation and strength enhancement are achieved, extending service life and improving transmission stability.
Patent Information
- Application Number
- CN202422621049.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-10-29
AI Technical Summary
The heat dissipation efficiency of micro motors is low and the plastic ring gear is insufficient, resulting in deformation, wear and breakage, affecting the normal operation and service life of the planetary gearbox motor.
The combined structure of heat absorption plate, heat conduction plate, heat dissipation plate and multiple heat dissipation fins is adopted to efficiently transfer heat through heat absorption and heat conduction, and combine the design of plastic inner ring and metal inner ring to enhance strength and stability.
It improves heat dissipation efficiency, reduces internal temperature, enhances the strength of the internal ring gear, reduces deformation and fracture, extends service life, and ensures stability of the transmission process.
Smart Images
Figure CN223152736U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of micro motors, and particularly relates to an internal gear ring structure of a planetary gearbox motor. Background Technique
[0002] A motor refers to an electromagnetic device that realizes the conversion or transmission of electrical energy based on the principle of electromagnetic induction. Its main function is to generate a driving torque. The internal gear ring in a planetary gearbox motor is an important component. Its main function is to mesh with the planetary gears, provide support and a transmission path for the planetary gears. Through cooperation with the planetary gears, the internal gear ring transmits the power of the motor to the output shaft to achieve speed reduction or speed increase.
[0003] At present, due to its small size during actual use, the existing micro motors limit the design space of the heat dissipation structure to a certain extent. Compared with larger motors, the heat dissipation surface area of micro motors is relatively small, and it is difficult for heat to dissipate quickly, further reducing the heat dissipation efficiency. Moreover, the strength of the internal plastic gear ring is insufficient. Under high load and high-speed operation, the plastic gear ring is prone to deformation, wear, or even fracture, thus affecting the normal operation and service life of the planetary gearbox motor. Content of the Utility Model
[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and provide an internal gear ring structure of a planetary gearbox motor. Through the settings of a heat absorption plate, a heat conduction plate, a heat dissipation plate, a first heat dissipation fin, and a second heat dissipation fin, heat can be efficiently transferred out from the inside of the housing, accelerating the heat transfer, thereby preventing heat from accumulating inside the housing, reducing the temperature inside the housing, and reducing the thermal damage of internal components, thus extending its service life. And through the settings of a plastic internal gear ring, a metal internal gear ring, and a sliding groove, the internal gears are more stable and reliable during the transmission process, reducing problems such as deformation and fracture caused by insufficient strength.
[0005] To achieve the above purpose, the utility model also provides an internal gear ring structure of a planetary gearbox motor with the above features, including: a housing and a heat dissipation component. A first groove is provided inside the housing. The heat dissipation component includes a heat absorption plate, a heat conduction plate, a heat dissipation plate, a first heat dissipation fin, and a second heat dissipation fin. The inner surface of the first groove is fixedly connected to the heat absorption plate. The side surface of the heat absorption plate is fixedly connected to the heat conduction plate. The side surface of the heat conduction plate is fixedly connected to the heat dissipation plate. The side surface of the heat dissipation plate is fixedly connected to the first heat dissipation fin. The inner surface of the housing is fixedly connected to a plastic internal gear ring. The inner surface of the plastic internal gear ring is fixedly connected to a metal internal gear ring. A ring groove is provided inside the metal internal gear ring.
[0006] According to the internal gear ring structure of a planetary gearbox motor described above, the side surface of the housing is fixedly connected to the second heat dissipation fins. The number of the first heat dissipation fins and the second heat dissipation fins is multiple and they are annularly distributed. The arrangement of the first heat dissipation fins and the second heat dissipation fins increases the contact area between the heat dissipation plate and the air, further strengthening the heat dissipation effect. The first heat dissipation fins and the second heat dissipation fins can form a channel for air flow, promoting air convection and accelerating the heat dissipation speed.
[0007] According to the internal gear ring structure of a planetary gearbox motor described above, a second groove is provided inside the housing, and a third groove is provided inside the housing.
[0008] According to the internal gear ring structure of a planetary gearbox motor described above, the first groove communicates with the second groove, and the second groove communicates with the third groove.
[0009] According to the internal gear ring structure of a planetary gearbox motor described above, the inner surface of the second groove is fixedly connected to a heat conducting plate, and the inner surface of the third groove is fixedly connected to a heat dissipation plate. The connection between the inner surface of the second groove and the heat conducting plate and the connection between the inner surface of the third groove and the heat dissipation plate both make the structure more stable.
[0010] According to the internal gear ring structure of a planetary gearbox motor described above, a circular opening is provided inside the housing, and a bearing is fixedly connected to the inner surface of the circular opening. The bearing provides stable support for the motor shaft. The bearing can withstand the radial and axial loads of the motor shaft, preventing the motor shaft from shifting, shaking or bending, and ensuring that the motor shaft can rotate smoothly.
[0011] According to the internal gear ring structure of a planetary gearbox motor described above, a rotating shaft is fixedly connected to the inner surface of the bearing, and the inner surface of the heat absorption plate is fixedly connected to a plastic internal gear ring. The heat generated by the plastic internal gear can be directly absorbed by the heat absorption plate, the dissipated heat is transferred through the heat conducting plate, and timely heat dissipation is carried out through the heat dissipation plate and the first heat dissipation fins.
[0012] According to the internal gear ring structure of a planetary gearbox motor described above, the material of the first heat dissipation fins is aluminum alloy, and the material of the second heat dissipation fins is copper. Aluminum alloy has a relatively small density and light weight, and has a high thermal conductivity, which can effectively conduct the heat generated inside the housing to the surface of the heat dissipation fins and then dissipate it through air convection and other means. Copper is an excellent heat conducting material with good heat dissipation effect.
[0013] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments;
[0015] Figure 1 It is a schematic diagram of the overall structure of the internal gear ring structure of a planetary gearbox motor of the present utility model;
[0016] Figure 2 It is a sectional view of the housing of the internal gear ring structure of a planetary gearbox motor of the present utility model;
[0017] Figure 3 is Figure 2 a schematic enlarged view of the structure at A in
[0018] Figure 4 It is a schematic diagram of a partial structure of the internal gear ring structure of a planetary gearbox motor of the present utility model.
[0019] Legend:
[0020] 1. Housing; 2. First groove; 3. Heat absorption plate; 4. Second groove; 5. Heat conduction plate; 6. Third groove; 7. Heat dissipation plate; 8. First heat dissipation fin; 9. Second heat dissipation fin; 10. Plastic internal gear ring; 11. Metal internal gear ring; 12. Ring groove; 13. Circular opening; 14. Bearing; 15. Rotating shaft; 16. Heat dissipation assembly. Specific embodiments
[0021] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The function of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it cannot be construed as a limitation on the protection scope of the present utility model.
[0022] Refer to Figures 1-4, an internal gear ring structure of a planetary gearbox motor according to an embodiment of the present utility model, comprising: a housing 1 and a heat dissipation assembly 16. A first groove 2 is provided inside the housing 1. The heat dissipation assembly 16 includes a heat absorption plate 3, a heat conduction plate 5, a heat dissipation plate 7, a first heat dissipation fin 8 and a second heat dissipation fin 9. The inner surface of the first groove 2 is fixedly connected to the heat absorption plate 3. The side surface of the heat absorption plate 3 is fixedly connected to the heat conduction plate 5. The side surface of the heat conduction plate 5 is fixedly connected to the heat dissipation plate 7. The side surface of the heat dissipation plate 7 is fixedly connected to the first heat dissipation fin 8. The material of the first heat dissipation fin 8 is aluminum alloy. The side surface of the housing 1 is fixedly connected to the second heat dissipation fin 9. The material of the second heat dissipation fin 9 is copper. The number of the first heat dissipation fins 8 and the second heat dissipation fins 9 is multiple and they are annularly distributed. A second groove 4 is provided inside the housing 1. A third groove 6 is provided inside the housing 1. The first groove 2 communicates with the second groove 4. The second groove 4 communicates with the third groove 6. The inner surface of the second groove 4 is fixedly connected to the heat conduction plate 5. The inner surface of the third groove 6 is fixedly connected to the heat dissipation plate 7.
[0023] A plastic internal gear ring 10 is fixedly connected to the inner surface of the housing 1. The inner surface of the heat absorption plate 3 is fixedly connected to the plastic internal gear ring 10. A metal internal gear ring 11 is fixedly connected to the inner surface of the plastic internal gear ring 10. A ring groove 12 is provided inside the metal internal gear ring 11. A circular opening 13 is provided inside the housing 1. A bearing 14 is fixedly connected to the inner surface of the circular opening 13. A rotating shaft 15 is fixedly connected to the inner surface of the bearing 14.
[0024] Working principle: During use, part of the heat generated during the operation of the components inside the housing 1 is absorbed by the heat absorption plate 3, conducted through the heat conduction plate 5 and transferred to the heat dissipation plate 7, and dissipated through the heat dissipation plate 7 and the first heat dissipation fins 8. Part of the heat inside the housing 1 is transferred through the housing 1 to the second heat dissipation fins 9 and dissipated through multiple groups of the second heat dissipation fins 9. The first heat dissipation fins 8 and the second heat dissipation fins 9 increase the heat dissipation surface area. The arrangement of multiple groups of the first heat dissipation fins 8 and the second heat dissipation fins 9 results in good heat dissipation effect. During the operation of the internal components, the metal internal gear ring 11 can support the plastic internal gear ring 10, thereby significantly enhancing the overall service strength. The combined use of the plastic internal gear ring 10 and the metal internal gear ring 11 can withstand greater loads and stresses and is more stable and reliable during transmission, reducing problems such as deformation and fracture caused by insufficient strength. This structure can efficiently transfer the heat from inside the housing 1, accelerate the heat transfer, thereby preventing the heat from accumulating inside the housing 1, reducing the temperature inside the housing 1, reducing the thermal damage of the internal components, and thus extending their service life. And it can make the internal gears more stable and reliable during transmission, reducing problems such as deformation and fracture caused by insufficient strength.
[0025] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited to the above embodiments, and various changes can be made without departing from the gist of the present utility model within the scope of knowledge possessed by those of ordinary skill in the art.
Claims
1. An internal gear ring structure of a planetary gearbox motor, characterized in that, Including: A housing (1) and a heat dissipation component (16), a first groove (2) is provided inside the housing (1), the heat dissipation component (16) includes a heat absorption plate (3), a heat conduction plate (5), a heat dissipation plate (7), a first heat dissipation fin (8) and a second heat dissipation fin (9), the inner surface of the first groove (2) is fixedly connected to the heat absorption plate (3), the side surface of the heat absorption plate (3) is fixedly connected to the heat conduction plate (5), the side surface of the heat conduction plate (5) is fixedly connected to the heat dissipation plate (7), the side surface of the heat dissipation plate (7) is fixedly connected to the first heat dissipation fin (8), the inner surface of the housing (1) is fixedly connected to a plastic internal gear ring (10), the inner surface of the plastic internal gear ring (10) is fixedly connected to a metal internal gear ring (11), and an annular groove (12) is provided inside the metal internal gear ring (11).
2. The internal gear ring structure of a planetary gearbox motor according to claim 1, characterized in that, The side surface of the housing (1) is fixedly connected to the second heat dissipation fin (9), and the numbers of the first heat dissipation fin (8) and the second heat dissipation fin (9) are both multiple and annularly distributed.
3. The internal gear ring structure of a planetary gearbox motor according to claim 1, characterized in that, A second groove (4) is provided inside the housing (1), and a third groove (6) is provided inside the housing (1).
4. The internal gear ring structure of a planetary gearbox motor according to claim 3, characterized in that, The first groove (2) communicates with the second groove (4), and the second groove (4) communicates with the third groove (6).
5. The internal gear ring structure of a planetary gearbox motor according to claim 3, characterized in that, The inner surface of the second groove (4) is fixedly connected to the heat conduction plate (5), and the inner surface of the third groove (6) is fixedly connected to the heat dissipation plate (7).
6. The internal gear ring structure of a planetary gearbox motor according to claim 1, characterized in that, A circular opening (13) is provided inside the housing (1), and a bearing (14) is fixedly connected to the inner surface of the circular opening (13).
7. The internal gear ring structure of a planetary gearbox motor according to claim 6, characterized in that, The inner surface of the bearing (14) is fixedly connected to a rotating shaft (15), and the inner surface of the heat absorption plate (3) is fixedly connected to the plastic internal gear ring (10).
8. The internal gear ring structure of a planetary gearbox motor according to claim 1, characterized in that, The material of the first heat dissipation fin (8) is aluminum alloy, and the material of the second heat dissipation fin (9) is copper.