Shaft-embracing permanent magnet inter-shaft glued rotor structure of high-speed motor

• US 10,128,703 B2
• Filed: 04/07/2017
• Issued: 11/13/2018
• Est. Priority Date: 07/06/2015
• Status: Active Grant

• Current Assignee: Shanghai Moons' Electric Company Limited
• Original Assignee: Shanghai Moons' Electric Company Limited
• Inventors: Jin, Wanbing, Nie, Huifan
• Primary Examiner(s): Nguyen, Hanh
• Application Number:
  US15/482,264
• Publication Number:
  US 20170214283A1
• Time in Patent Office: 585 Days
• Field of Search: 31015611, 31015612
• CPC Class Codes: H02K 1/2726 the rotor consisting of a single magnet or two or more axially juxtaposed single magnets
• CPC Class Codes: H02K 1/28 Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures

Abstract

The present invention relates to a shaft-embracing permanent magnet inter-shaft glued stator structure of a high-speed motor; the structure is a shaft-embracing permanent magnet integrated structure; the rotor structure comprises a permanent magnet (2), an output shaft (1) which is connected with one end of the permanent magnet (2) and embraces one part of the permanent magnet (2), and a rear shaft (4) which is respectively connected with the other end of the permanent magnet (2) and the output shaft (1), used for embracing the other part of the permanent magnet (2), and connected with the output shaft (1) to form a sealing mechanism of the permanent magnet (2). Compared with the prior art, the present invention has advantages of good electro-magnetic performance, high reliability, high productivity and good concentricity.

Claims

1. A shaft-embracing permanent magnet inter-shaft glued rotor of a high-speed motor, wherein the rotor has a shaft-embracing permanent magnet integrated structure;

the rotor comprising;

a permanent magnet having a first end and a second end;

an output shaft, connected with the first end of the permanent magnet and embracing one part of the permanent magnet; and

,

a rear shaft, connected with the second end of the permanent magnet and the output shaft, configured to embrace the other part of the permanent magnet, and connected with the output shaft to form a sealing mechanism of the permanent magnet,

wherein, the joint between the output shaft and the rear shaft is glued to integrate the output shaft and the rear shaft as a whole,

wherein, both of the output shaft and the rear shaft have a convex structure.

2. The shaft-embracing permanent magnet inter-shaft glued rotor of a high-speed motor according to claim 1, wherein, connected with the permanent magnet, of the output shaft is formed with a first inner hole matched with the permanent magnet.

3. The shaft-embracing permanent magnet inter-shaft glued rotor of a high-speed motor according to claim 1, wherein, connected with the permanent magnet, of the rear shaft is formed with a second inner hole matched with the permanent magnet.

4. The shaft-embracing permanent magnet inter-shaft glued rotor of a high-speed motor according to claim 1, wherein, the shafts and inner holes of the shafts are processed to correspond to each other, respectively.