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motor

A technology of motors and connecting parts, applied in the field of motors, which can solve problems such as larger motor sizes and complex bus bar configurations

Active Publication Date: 2021-05-04
NIDEC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in the case of configuring a three-phase circuit of a plurality of systems, etc., there is a problem that the arrangement of the bus bars tends to become complicated, and the bus bars overlap each other in the axial direction, thereby increasing the size of the motor in the axial direction.

Method used

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Embodiment Construction

[0017] Hereinafter, a motor according to an embodiment of the present invention will be described with reference to the drawings. In addition, the scope of the present invention is not limited to the following embodiments, and can be changed arbitrarily within the scope of the technical idea of ​​the present invention. In addition, in the following drawings, in order to facilitate understanding of each structure, the actual structure may be different from the scale, number, etc. in each structure.

[0018] In addition, in the drawings, an XYZ coordinate system is appropriately shown as a three-dimensional vertical coordinate system. In the XYZ coordinate system, the Z-axis direction is the same as figure 1 The axial parallel direction of the central axis J is shown. The X-axis direction is the direction perpendicular to the Z-axis direction, and is figure 1 left and right directions. The Y-axis direction is a direction perpendicular to both the X-axis direction and the Z-a...

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Abstract

A motor which is a delta-connected three-phase brushless motor having six or more poles, wherein the motor has: a stator having a plurality of coils; rotation; and the first bus bar, the second bus bar and the third bus bar, which are respectively connected to the lead-out wires of the coil, the first bus bar has a first connecting portion connected to the two lead-out lines, and the second bus bar has a connection with the two lead-out lines A second connecting portion connected to one lead-out wire, the third bus bar has a third connecting portion connected to one lead-out wire and a fourth connecting portion connected to one lead-out wire, the first connecting portion and the second connecting portion are arranged in parallel in the circumferential direction , the third connecting portion and the fourth connecting portion are disposed with the first connecting portion and the second connecting portion interposed therebetween in the circumferential direction.

Description

technical field [0001] This invention relates to motors. Background technique [0002] Conventionally, a motor having a plurality of bus bars is known. For example, in the motor of Patent Document 1, a bus bar is disclosed that Y-Δ connects coils of a plurality of systems. [0003] prior art literature [0004] patent documents [0005] Patent Document 1: Japanese Patent Laid-Open No. 2013-223295 Contents of the invention [0006] The problem to be solved by the invention [0007] In existing motors, at least four bus bars are required for each system's three-phase circuit for Y-connection. Therefore, in the case of configuring a plurality of three-phase circuits, there is a problem that the arrangement of the bus bars tends to become complicated, and the bus bars overlap in the axial direction, thereby increasing the size of the motor in the axial direction. [0008] In view of the above problems, one aspect of the present invention has an object of providing a moto...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K3/50H02K3/04H02K5/22
CPCH02K3/522H02K3/28H02B1/205H02K5/225
Inventor 小川幸祐瀬口敬史村上俊辅新子刚央
Owner NIDEC CORP
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