一种轻量化转子的步进电机
Through lightweight design and material optimization, the problems of increased inertia and high energy consumption caused by the heavy rotor of the stepper motor have been solved, achieving fast response and efficient operation of the motor.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG KAIHONG MOTOR CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-07-17
AI Technical Summary
The rotor weight of existing stepper motors is relatively large, which leads to increased inertia when the motor starts and stops, slower response speed, increased energy consumption, and limitations on the motor's working efficiency and accuracy.
The rotor adopts a lightweight design, using neodymium iron boron magnets and an aluminum alloy core, combined with a special coating and hollow casting process to reduce rotor weight. Furthermore, it reduces resistance and frictional resistance by optimizing the stator winding design and carbon fiber composite shell.
It achieves the generation of a strong magnetic field in a small volume and weight, improving the motor's response speed and working efficiency, reducing energy consumption, and enhancing the motor's precision and stability.
Smart Images
Figure CN224520768U_ABST
Abstract
Claims
1. A stepper motor of a lightweight rotor comprising a front end cover (2), characterized in that: The front end of the front end cover (2) is threadedly connected with a bolt (3), the outer side of the bolt (3) is threadedly connected with the motor shell (1) through the inside of the front end cover (2), the surface center of the front end cover (2) is rotationally connected with a center shaft (5), the outer side of the center shaft (5) is rotationally connected with the inside of the motor shell (1), the outer side of the center shaft (5) is sleeved with a first bearing (11) and a second bearing (13), the right side of the first bearing (11) is provided with an anti-loose ring (12), the right side of the anti-loose ring (12) is arranged on one side of the second bearing (13), the first bearing (11) and the second bearing (13) are rotationally connected with a first high-permeability steel body (6) and a second high-permeability steel body (7), the first high-permeability steel body (6) and the second high-permeability steel body (7) are fixedly connected on the outer side of the center shaft (5), and the first high-permeability steel body (6) and the second high-permeability steel body (7) are rotationally connected in the inside of the motor shell (1).
2. A light-weight rotor step motor according to claim 1, characterized in that: The inner wall of the motor shell (1) is fixedly connected with a gasket (8), the inside of the gasket (8) is rotationally connected with a stator (10), the gasket (8) and the stator (10) are fixedly connected with an electromagnetic winding (9), and the first high-permeability steel body (6) and the second high-permeability steel body (7) are magnetically connected in the inside of the stator (10).
3. A light-weight rotor step motor according to claim 2, characterized in that: The first high-permeability steel body (6) and the second high-permeability steel body (7) adopt neodymium iron boron magnetic steel raw materials, and the first high-permeability steel body (6) and the second high-permeability steel body (7) are pressed by an integrated molding precision mold.
4. A light-weight rotor step motor according to claim 3, characterized in that: First and second rotor cores (14) and (15) are respectively arranged in the inside between the first high-permeability steel body (6) and the second high-permeability steel body (7), and the first rotor core (14) and the second rotor core (15) are both sliding between the center shaft (5) and the first high-permeability steel body (6).
5. A light-weight rotor step motor according to claim 4, characterized in that: The first rotor core (14) and the second rotor core (15) adopt a hollow casting process, weight-reducing grooves are uniformly distributed on the outer sides of the first high-permeability steel body (6) and the second high-permeability steel body (7), and the outer sides of the first high-permeability steel body (6) and the second high-permeability steel body (7) are sprayed with a coating.
6. A light-weight rotor step motor according to claim 5, characterized in that: The first rotor core (14) and the first high-permeability steel body (6) are connected in a bonding manner, and the first high-permeability steel body (6) and the second high-permeability steel body (7) are connected in a staggered manner.
7. The light-weight rotor step motor of claim 2, wherein: The motor shell (1) is provided with heat dissipation fins (4) on the outer side, and the heat dissipation fins (4) are uniformly distributed around the motor shell (1).