一种永磁电机散热结构及低速大功率永磁电机

Abstract

本实用新型涉及电机技术领域，具体涉及一种永磁电机散热结构及低速大功率永磁电机。该散热结构包括圆筒状的机座，机座内侧沿圆周方向设有若干块筋板，所有的筋板共同围绕形成安装空间，安装空间用于安装永磁电机的定子，机座上开设有若干个进风口和若干个出风口，进风口和出风口均与安装空间对应设置，进风口处设有送风单元。使用时，通过送风单元向机座内送入冷却气流，冷却气流进入机座内部，冷却气流经过定子铁芯、定子线圈以及定子与转子之间的装配间隙，通过冷却气流携带热量从出风口排出。高速流动的冷却气流能够快速冷却永磁电机的定子铁芯和定子线圈的端部，提高了散热效果，有效地降低了电机损坏的风险。

Claims

1. A heat dissipation structure for a permanent magnet motor, characterized in that, include: A cylindrical base (1) has several stiffening plates (2) arranged along the circumferential direction on the inner side of the base (1). All the stiffening plates (2) together form an installation space. The installation space is used to install the stator (11) of the permanent magnet motor. Several air inlets (3) and several air outlets (4) are opened on the base (1). The air inlets (3) and air outlets (4) are arranged corresponding to the installation space. An air supply unit (5) is provided at the air inlet (3).

2. The heat dissipation structure of a permanent magnet motor according to claim 1, characterized in that, The lower end of the base (1) is fixedly connected to an end plate (6), the bottom end of the stiffener (2) is fixedly connected to the end plate (6), and an installation port (7) is provided in the middle of the end plate (6).

3. The heat dissipation structure of a permanent magnet motor according to claim 2, characterized in that, An annular reinforcing plate (8) is fixedly connected to the inner side of the base (1), and the reinforcing plate (8) is fixedly connected to the top of the stiffening plate (2).

4. The heat dissipation structure of a permanent magnet motor according to claim 3, characterized in that, Each of the adjacent stiffeners (2) is fixedly connected with an air guide plate (9). The air guide plate (9) is spaced from the stator (11) assembled in the installation space. The top of the air guide plate (9) is spaced from the reinforcing plate (8), and the bottom of the air guide plate (9) is spaced from the end plate (6).

5. The heat dissipation structure of a permanent magnet motor according to claim 4, characterized in that, The air guide plate (9) is an arc-shaped plate.

6. A heat dissipation structure for a permanent magnet motor according to any one of claims 3 to 5, characterized in that, The air inlet (3) is located near the reinforcing plate (8), and the air outlet (4) is located near the end plate (6).

7. The heat dissipation structure of a permanent magnet motor according to claim 6, characterized in that, The air inlet (3) and air outlet (4) are evenly distributed along the circumference of the base (1).

8. The heat dissipation structure of a permanent magnet motor according to claim 6, characterized in that, The air inlet (3) and air outlet (4) are vertically staggered.

9. The heat dissipation structure of a permanent magnet motor according to claim 1, characterized in that, A mesh plate is provided at the air outlet (4).

10. A low-speed high-power permanent magnet motor, characterized in that, Includes a heat dissipation structure for a permanent magnet motor as described in any one of claims 1-9.

Images