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Rotor

一种转子、转子铁芯的技术，应用在转子领域，能够解决无法形成磁极、无法有助于转子转矩等问题

Active Publication Date: 2018-05-11
DAIKIN IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the non-magnetic part is not affected by the magnetic field, and magnetic poles cannot be formed on the outer periphery
Therefore, the bonded magnet formed in the magnet hole of the non-magnetic body cannot contribute to the torque of the rotor

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] The rotor of this embodiment will be described using the drawings. The rotor is used for a rotary electric machine such as an IPM (Interior Permanent Magnet: interior permanent magnet) motor. The rotary electric machine can be applied to compressors and the like in the same manner as in the past.

[0035] figure 1 A perspective view of the rotor 10 of this embodiment is shown in . The rotor 10 includes a rotor core 24 and bonded magnets 26 . The rotor core 24 has two core blocks 14 a and 14 b in which a plurality of first core pieces 12 are laminated, and a spacer core 20 d. The direction in which the first core pieces 12 are stacked is the respective thickness direction, and is an axial direction parallel to the rotation axis J of the rotor 10 . The spacer core 20d is sandwiched between the core blocks 14a, 14b in the axial direction.

[0036] A magnet hole 16a penetrates the core block 14a in the axial direction, a magnet hole 16b penetrates the core block 14b in...

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PUM

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Abstract

Provided is a rotor in which magnets unable to contribute towards torque are reduced. The rotor (10) is provided with a rotor core (24) and bonded magnets (26). The rotor core (24) has core blocks (14a, 14b) and a partition core (20d) sandwiched by the core blocks (14a, 14b) in the axial direction. Magnet holes (16a, 16b, 22d) are provided to the core blocks (14a, 14b) and the partition core (20d)respectively so as to penetrate in the axial direction, and the magnet hole (22d) communicates with the magnet holes (16a, 16b). The positions of the magnet holes (16a, 16b) in the circumferential direction (K) are displaced from each other. The magnet holes (16a, 16b, 22d) are filled with the bonded magnets (26).

Description

technical field [0001] The invention relates to rotors used in rotating electric machines. Background technique [0002] Conventionally, various rotating electric machines have been developed that include an annular stator around a cylindrical rotor. The rotor includes: a rotor core formed by laminating a plurality of iron sheets made of electromagnetic steel sheets; magnet holes formed in the rotor core; and magnets inserted into the magnet holes. [0003] In order to reduce the noise generated when the rotor rotates, as described in the following Patent Document 1, a rotor is disclosed in which the magnet hole is made to follow the direction parallel to the rotation axis of the rotor (hereinafter referred to as "axial direction") One end of the rotor is staggered (skewed) toward the other end in the circumferential direction of the rotor (ie, the circumferential direction relative to the axis of rotation). [0004] The magnetic pole center of the rotor that twists the ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/27H02K1/22H02K21/14
CPCH02K1/2766H02K2201/06H02K2213/03H02K21/14H02K1/27H02K15/03H02K29/03
Inventor 浅野能成安田善纪平野正树
Owner DAIKIN IND LTD