Compact type permanent magnet brushless motor with equal-resistance duplex winding and redundant hall structure

A permanent magnet brushless motor, double winding technology, applied in the shape/style/structure of the winding conductor, the shape/style/structure of the magnetic circuit, electrical components, etc., can solve problems such as system failure, and achieve the reduction of complex procedures and structure The effect of simple, high torque output

Inactive Publication Date: 2013-08-07
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a compact permanent magnet brushless motor with equal resistance double windings and redundant Hall structure, which solves the problem of system failure caused by circuit control failure and other reasons in the existing space manipulator motor system

Method used

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  • Compact type permanent magnet brushless motor with equal-resistance duplex winding and redundant hall structure
  • Compact type permanent magnet brushless motor with equal-resistance duplex winding and redundant hall structure
  • Compact type permanent magnet brushless motor with equal-resistance duplex winding and redundant hall structure

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specific Embodiment approach 1

[0010] Specific implementation mode one: as figure 1 , figure 2 As shown, it is composed of a hollow disc permanent magnet rotor 1, a stator 2, a double-layer winding 3, and six Hall elements 4;

[0011] The double-layer winding 3 is composed of the first-layer winding 3-1 and the second-layer winding 3-2; the second-layer winding 3-2 is socketed on the first-layer winding 3-1; the stator 2 is composed of multiple stator cores 2- 1 composition; each stator core 2-1 has a stator tooth 2-2, and multiple stator cores 2-1 are connected end to end to form mutually spaced stator teeth 2-2 and stator slots 2-3, and all stator teeth 2 Three-phase symmetrical double-layer winding 3 is wound on -2 in a fractional slot type, the number of turns of the first layer of winding 3-1 in each phase of double-layer winding 3 is equal, and the number of turns of each phase of double-layer winding 3 in the second layer of winding The number of turns of 3-2 is equal, the number of turns of the f...

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Abstract

The invention provides a compact type permanent magnet brushless motor with an equal-resistance duplex winding and a redundant hall structure, and relates to the technical field of a brushless motor with a redundant structure and high power density. The problem of system fault of the existing space manipulator motor system caused by the control failure of a circuit and the like can be solved. A plurality of stator cores are connected with one another end to end to form stator teeth and stator slots, which are separated from one another, a three-phase symmetry double-layer winding which is wound in a fractional-slot way is arranged on all the stator teeth, and air gaps are available between the surface of an inner circle formed by a plurality of the stator cores and the surface of an outer circle formed by hollow plate type permanent magnet rotors; and the pole faces of the stator teeth on six stator cores are respectively provided with a groove, the six stator cores are dispersed and evenly distributed, the center of each slot is arranged on the axial lead of the duplex winding, and each slot is internally embedded with a hall element respectively. The compact type permanent magnet brushless motor provided by the invention is a low-speed small-power brushless torque motor which has the redundant structure of the double-layer winding and a plurality of hall components.

Description

technical field [0001] The invention relates to the technical field of a permanent magnet brushless motor with redundant structure and high power density. Background technique [0002] In order to increase the operational reliability of the system, redundant design schemes are usually adopted for the motor systems used to drive high-precision robotic arms on the ground, aerospace robotic arms, and lunar rover robotic arms for lunar exploration projects. That is, the redundant structure of the motor stator winding and the redundant design of the control circuit are adopted. In this way, when one system breaks down, another set of control circuit and motor winding system can be started to work. Contents of the invention [0003] The purpose of the present invention is to provide a compact permanent magnet brushless motor with equal resistance double windings and redundant Hall structure, which solves the problem of system failure caused by circuit control failure and other ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K29/08H02K3/28H02K1/14
Inventor 尚静王昊赵博李婷婷丛宁
Owner HARBIN INST OF TECH
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