转子、电机、压缩机和制冷设备

Abstract

本实用新型提供了一种转子、电机、压缩机和制冷设备，转子包括：转子铁芯，转子铁芯设有多个导体槽，多个导体槽沿转子铁芯的周向间隔排布；多个导条，多个导条分别设于多个导体槽；其中，至少一个导体槽远离转子铁芯的中心的一端与转子铁芯的外壁在转子铁芯径向上的距离的最小值L满足，0.05mm≤L≤0.2mm，也就是说，将至少一个导体槽的外沿与转子铁芯外壁之间的最小距离限定在0.05mm至0.2mm之间，即减小了铝槽壁的厚度，从而可降低电机的损耗，提升电机效率。

Claims

1. A rotor characterized by, include: The rotor core has multiple conductor slots, which are arranged at intervals along the circumference of the rotor core. Multiple guide bars, each of which is disposed in a multiple conductor groove; Wherein, the minimum value L of the distance between at least one end of the conductor slot away from the center of the rotor core and the outer wall of the rotor core in the radial direction of the rotor core satisfies 0.05mm≤L≤0.2mm.

2. The rotor of claim 1, wherein The rotor core includes a plurality of rotor laminations, which are stacked along the axial direction of the rotor core. The thickness h of the rotor lamination and the maximum value W and minimum value L of the width of at least one conductor slot in the circumferential direction of the rotor core satisfy the condition 0.015≤(L×h) / W≤0.

07.

3. The rotor of claim 1, wherein The rotor core includes a plurality of rotor laminations, which are stacked along the axial direction of the rotor core. At least one of the conductor slots includes a first slot wall and a second slot wall, which are arranged opposite to each other along the radial direction of the rotor core. The first slot wall is further away from the center of the rotor core than the second slot wall. The first slot wall is constructed as an arc-shaped wall. The minimum distance between the first slot wall and the outer wall of the rotor core in the radial direction of the rotor core is L. The thickness h of the rotor lamination, the radius R of the first slot wall, and the minimum value L satisfy the condition 0.008≤(L×h) / R≤0.

04.

4. A rotor according to claim 2 or 3, characterised in that Each rotor lamination has multiple slots, which are arranged at intervals along the circumference of the rotor lamination. The slots of the rotor laminations are axially connected along the rotor core to form the conductor slots. Wherein, the minimum value D of the distance between at least one end of the slot away from the center of the rotor core and the outer wall of the rotor lamination in the radial direction of the rotor lamination satisfies 0.05mm≤D≤0.2mm.

5. The rotor of claim 4, wherein Each of the rotor laminations is further provided with a limiting part and a limiting opening. The limiting part is located at the limiting opening along the radial direction of the rotor core, and the limiting opening is located inside the plurality of slots. The plurality of rotor laminations include at least a first lamination, a second lamination, and a third lamination that are sequentially adjacent to each other. The limiting portion of the first lamination is inserted into the limiting opening of the second lamination, and the limiting portion of the second lamination is inserted into the limiting opening of the third lamination.

6. The rotor of any one of claims 1 to 3, wherein At least one of the guide bars comprises an aluminum strip.

7. The rotor of any one of claims 1 to 3, wherein The rotor core is further provided with a shaft hole, which is located inside the plurality of conductor slots along the radial direction of the rotor core. The rotor also includes: A rotating shaft passes through the shaft hole.

8. An electric machine characterized by Includes a rotor as described in any one of claims 1 to 7.

9. A compressor characterized by, include: The rotor as described in any one of claims 1 to 7; or The motor as described in claim 8.

10. A refrigeration appliance characterized in that, include: The rotor as described in any one of claims 1 to 7; or The motor as described in claim 8; or The compressor as described in claim 9.

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