一种齿轮箱电机结构
By optimizing the structure of planetary gears and sun gears, as well as the design of the iron core, the problems of low efficiency, high noise, and short lifespan of gearbox motors have been solved, resulting in a high-efficiency, low-noise gearbox motor structure suitable for applications such as household appliances.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN PEAK IND LIMITED
- Filing Date
- 2025-07-02
- Publication Date
- 2026-07-17
AI Technical Summary
Existing gearbox motors are inefficient, noisy, and have a limited lifespan, which is particularly evident in household appliances.
The optimized planetary gear and sun gear structure, combined with the optimized core size, improves transmission efficiency and reduces noise. The meshing is optimized by the convex ring on the planetary gear and the arc-shaped convex part on the sun gear, reducing heat loss and mechanical noise.
It significantly improves transmission efficiency, reduces heat loss and mechanical noise, and extends the service life of the motor, making it suitable for the consumer goods market with medium to high energy efficiency requirements.
Smart Images
Figure CN224520864U_ABST
Abstract
Claims
1. A gear case motor structure, characterized by, The device includes a motor housing (1) and a gearbox (2). A rotor assembly is installed inside the motor housing (1). A shaft is provided inside the rotor assembly and extends into the gearbox (2). Two planetary gear sets are installed inside the gearbox (2) via an output frame (7) and a sun disk (8). The top of the upper planetary gear set is rotatably connected to an output shaft (4) extending to the top of the gearbox (2) via a first bearing (3). Each planetary gear includes three planetary gears (5). The upper and lower ends of each planetary gear (5) are provided with a horizontal surface (12). A convex ring (13) is integrally formed on the outer side of the center hole of the horizontal surface (12). The three lower planetary gears (5) are meshed with a motor gear (9). The motor gear (9) is sleeved on the extension end of the shaft. A sun gear (16) is formed in the middle of the sun disk (8). An arc-shaped protrusion (10) is provided in the middle of the top of the sun gear (16).
2. A gear case motor construction according to claim 1, characterized in that: The rotor assembly includes an iron core, which is formed by stacking multiple E-type silicon steel sheets. The E-type silicon steel sheets are punched to form five armature frames (14) and five slots (15).
3. A gear case motor construction according to claim 2, characterized in that: The armature frame (14) has a width of 3.5 mm, and the slot (15) has a width of 1.1 mm.
4. A gear case motor construction according to claim 3, characterized in that: The motor housing (1) has an integrally formed motor end cover (6) at the top center, and the bottom end of the gearbox (2) is fitted onto the outside of the motor end cover (6) and fixed with screws.
5. The gearbox motor structure according to claim 4, characterized in that: The upper inner wall of the gearbox (2) is provided with an internal gear ring that meshes with the planetary gear (5).
6. A gear case motor construction according to claim 5 wherein: The sun disk (8) is provided with three shaft holes (11) in the middle and outside of the sun gear (16) and the output frame (7) is provided with three shaft holes (11) in the middle and outside of the sun gear (16). The shaft holes (11) are fixedly connected to downward extending mounting shafts. The bottom ends of the mounting shafts are rotatably connected to the corresponding planetary gears (5) through second bearings.
7. A gear case motor construction according to claim 6, characterized in that: Gaskets are installed on the upper surface of the solar disk (8) and the upper surface of the motor end cover (6). The convex ring (13) at the bottom of the upper planetary gear (5) is slidably connected to the corresponding gasket. The convex ring (13) at the bottom of the lower planetary gear (5) is slidably connected to the corresponding gasket. The convex ring (13) at the top of the upper planetary gear (5) is slidably connected to the output frame (7). The convex ring (13) at the top of the lower planetary gear (5) is slidably connected to the solar disk (8).
8. A gear case motor construction according to claim 7, characterized in that: The bottom end of the output shaft (4) is keyed to the middle of the output frame (7), and the middle of the bottom end of the output shaft (4) is slidably connected to the arc-shaped protrusion (10) at the top of the sun gear (16).