Permanent magnet synchronous motor and compressor

A permanent magnet synchronous motor, magnetic pole technology, applied in synchronous motors with stationary armatures and rotating magnets, machines/engines, magnetic circuits, etc. The effect of reducing eddy current loss, improving operating efficiency and improving winding coefficient

Pending Publication Date: 2018-09-14
GUANGDONG WELLING AUTO PARTS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are 12 slots and 10 poles in the concentrated coil motor with high winding coefficient, and the star connection or delta connection is adopted. Increased loss reduces motor efficiency

Method used

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  • Permanent magnet synchronous motor and compressor
  • Permanent magnet synchronous motor and compressor
  • Permanent magnet synchronous motor and compressor

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Embodiment Construction

[0043] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0044] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described here. Therefore, the protection scope of the present invention is not limited by the specific details disclosed below. EXAMPLE LIMITATIONS.

[0045] Refer below Figure 1 to Figure 9 Permanent magnet synchronous motors and compressors according to some embodiments of the present invention are described. in, figure 1 The arrow in represe...

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Abstract

The present invention provides a permanent magnet synchronous motor. The permanent magnet synchronous motor comprises: a rotor which is provided with ten magnetic poles; a stator core provided with arotor hole configured to allow the rotor to pass through and 12 double wedges distributed around the rotor hole, wherein one winding groove is formed between each two adjacent double wedges; three-phase stator windings arranged in the winding grooves, wherein each phase stator winding in the three-phase stator windings comprises two sets of coils, each coil comprises one first-class coil and one second-class coil which are adjacently distributed to each other, the first-class coils are advanced to the second-class coils in the coils, and the diameters of naked wires of the first-class coils are the same as these of the second-class coils; each three-phase stator winding comprises one angle connection portion and one star connection portion, wherein each angle connection portion comprises aplurality of second-class coils which are connected end to end, and each star connection portion comprises first-class coils directly or indirectly connected with points of intersection of the second-class coils; and in each phase stator winding, there is at least one first-class coil connected with a supply wire of a corresponding phase.

Description

technical field [0001] The invention relates to the technical field of compressor equipment, in particular to a permanent magnet synchronous motor and a compressor. Background technique [0002] Electric compressors for new energy vehicles have strict requirements on the weight of the motor, not only to reduce the weight of the motor, but also to achieve high power density and efficient operation. In order to achieve high power density and high-efficiency operation, the concentrated winding group scheme of variable frequency permanent magnet synchronous motors is widely used at present. Each coil of the concentrated winding group motor is wound on a stator tooth, which shortens the end length of the winding and the axial length of the motor. , reduces the amount of copper used, reduces the weight of the motor, and reduces the total copper consumption of the motor, but the winding coefficient is low, resulting in low utilization of copper wires, and the operating efficiency o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K21/16H02K1/16H02K3/28H02K1/14H02K3/16H02K1/27F04B35/04
CPCH02K21/16F04B35/04H02K1/146H02K1/16H02K1/276H02K3/16H02K3/28H02K2213/03
Inventor 郑军洪孙国伟陈汉锡
Owner GUANGDONG WELLING AUTO PARTS CO LTD
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