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Motors and Compressors

A rotor iron core and magnet slot technology, applied in electromechanical devices, electrical components, electric components, etc., can solve problems affecting motor efficiency, vibration and noise, etc., and achieve the effect of improving convenience, easy maintenance, and reducing processing procedures.

Active Publication Date: 2022-02-11
ANHUI MEIZHI PRECISION MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When the motor winding has a star joint and a delta joint at the same time, due to the existence of the delta joint, there will be a winding ring in the winding, and a winding circulation will be generated in the winding ring, which will affect the efficiency and vibration noise of the motor.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] combine figure 1 and figure 2 As shown, the embodiment of the first aspect of the present invention proposes a motor, including: a rotor core 100 , a magnet slot 200 , and a permanent magnet 300 , and the magnet slot 200 is disposed on the rotor core 100 . There are a plurality of magnet slots 200, and the plurality of magnet slots 200 are arranged on the rotor core 100 along the circumferential direction of the rotor core 100; The center line of the magnetic pole is set as the D axis; the outer edge of the rotor core 100 is provided with a groove 110 , and the D axis passes through the groove 110 .

[0054] There are a plurality of magnet slots 200, and the plurality of magnet slots 200 are arranged on the rotor core 100 along the circumferential direction of the rotor core 100. The permanent magnets 300 can be installed in the magnet slots 200 and form magnetic poles, which can increase the magnetic flux. Function, since a plurality of magnet slots 200 are distribu...

Embodiment 2

[0060] combine figure 1 , figure 2 , image 3 , Figure 4 and Figure 5 As shown, on the basis of Embodiment 1, an air gap is formed between the stator 400 and the rotor core 100; the maximum distance from the opening of the groove 110 to the bottom of the groove 110 is set as L1, and the minimum air gap is The value is δ, satisfying 0.3<L1 / δ<0.5.

[0061] In this embodiment, the maximum distance from the opening of the groove 110 to the bottom of the groove 110 is L1, and when the groove 110 is symmetrical with respect to the D axis, the maximum distance from the opening of the groove 110 to the bottom of the groove 110 The connecting line coincides with the center line of the groove 110. When the ratio of L1 to δ is greater than 0.5, it indicates that the depth of the groove 110 is relatively large. At this time, it is easy to affect the structural stability of the stator 400, and it is easy to over-adjust the third harmonic magnetic field. If the ratio of L1 to δ If ...

Embodiment 3

[0066] combine image 3 , Figure 4 and Figure 10 As shown, in the above embodiment, the stator 400 further includes: a stator core 410, including a stator yoke 411 and a stator tooth 412, the stator yoke 411 is configured in a ring shape, and the stator tooth 412 is connected to the stator yoke 411 and along the stator yoke 411 The circumferential interval of the yoke 411 is set in the stator yoke 411, and a winding slot 413 is formed between two adjacent stator teeth 412; the stator winding 420, the stator winding 420 includes a plurality of connected coils, and the coils are wound on On the plurality of stator teeth 412, the coils include first-type coils and second-type coils. Along the rotation direction of the rotor, the rotor passes through the second-type coils and the first-type coils in turn. The stator winding 420 is a three-phase stator winding 420. Each phase The stator winding 420 is provided with at least three joints, including a first joint, a second joint ...

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Abstract

The invention provides a motor and a compressor, wherein the motor comprises: a rotor core; a plurality of magnet slots, the plurality of magnet slots are arranged on the rotor core along the circumference of the rotor core; permanent magnets are arranged on the magnet A magnetic pole is formed in the groove, and the center line of any magnetic pole passing through the axis of the rotor core is set as the D axis, the outer edge of the rotor core is provided with a groove, and the D axis passes through the groove. By providing grooves on the rotor iron core, the harmonic magnetic field can be effectively weakened, the performance of the motor can be improved and the noise can be improved.

Description

technical field [0001] The invention belongs to the technical field of motors, and in particular relates to a motor and a compressor. Background technique [0002] When the motor winding has a star joint and a delta joint at the same time, due to the existence of the delta joint, there will be a winding ring in the winding, and a winding circulation will be generated in the winding ring, which will affect the efficiency and vibration noise of the motor. Contents of the invention [0003] The present invention aims to solve one of the technical problems existing in the prior art or related art. [0004] In view of this, the first aspect of the present invention proposes a kind of motor, comprising: rotor iron core; Magnet groove, magnet groove is a plurality of, and a plurality of magnet grooves are arranged on rotor iron core along the circumferential direction of rotor iron core; Permanent magnet, set A magnetic pole is formed in the magnet slot, and the centerline of an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K1/276H02K1/14H02K3/28H02K3/52
CPCH02K1/276H02K1/146H02K3/28H02K3/522H02K2201/03H02K2213/03
Inventor 刘法民王玉龙江波邱小华李宏涛
Owner ANHUI MEIZHI PRECISION MFG
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