Disk-type coreless permanent-magnetic brushless DC (direct current) motor

A permanent magnet brushless DC and iron-free technology, which is applied in the direction of electronically commutated motor control, electrical components, electromechanical devices, etc., can solve the problems of poor sealing and low service life of the motor, and achieve high inertia and low working temperature rise. High, reduce the effect of operating temperature rise

Inactive Publication Date: 2013-11-06
HUZHOU YUNTIAN NEW ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the disk-type coreless permanent magnet brushless DC motor often has poor sealing between the end cover and the bearing, which leads to a short service life of the motor and is prone to safety hazards

Method used

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  • Disk-type coreless permanent-magnetic brushless DC (direct current) motor
  • Disk-type coreless permanent-magnetic brushless DC (direct current) motor
  • Disk-type coreless permanent-magnetic brushless DC (direct current) motor

Examples

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Embodiment

[0018] Example: such as Figure 1-2 As shown, the disc-type coreless permanent magnet brushless DC motor includes a first housing 1, a second housing 2 that is sealed and fixedly connected to the first housing 1; the first housing 1 is fixed and sealed and connected with The first end cover 11; the first end cover 11 is fixed and sealed connected with the first bearing 12; the second housing 2 is fixed and sealed connected with the second end cover 21; the second end cover 21 is fixed and sealed connected with the second bearing 22; the second bearing 22 is fixed and sealed with a bearing seat 23; the shaft 3 is set through the sleeve between the first bearing 12 and the bearing seat 23; the inner wall of the first housing 1 is provided with a first permanent magnet 41; the second housing 2 The inner wall is provided with a second permanent magnet 42; the shaft 3 is fixed with an armature winding seat 5, and the edge of the armature winding seat 5 is fixed with an armature win...

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PUM

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Abstract

The invention relates to disk-type DC motors, particularly to a disk-type coreless permanent-magnetic brushless DC motor. The technical scheme comprises that the disk-type coreless permanent-magnetic brushless DC motor comprises two housings which are connected in a sealed mode, two end covers correspondingly arranged on the housings, and two bearings correspondingly arranged on the end covers. Each end cover is provided with a stop flange which extends to the end surface of the corresponding bearing, and an O-shaped seal ring is arranged between each stop flange and the end surface of the corresponding bearing. The disk-type coreless permanent-magnetic brushless DC motor also comprises an armature winding, the armature winding is in a ring shape and comprises an arc-shaped first part away from the a shaft, an arc-shaped second part close to the shaft, and arc-shaped third parts connected between both ends of the first part and the corresponding ends of the second part; the connection line of the centers of the first part and the second part is disposed in the middle section of the armature winding; the inner diameter of the first part is 1.5-2 times as large as that of the second part. The disk-type coreless permanent-magnetic brushless DC motor has good sealing performance and a high magneto-electricity conversion rate.

Description

technical field [0001] The invention relates to a disc type direct current motor, in particular to a disc type iron coreless permanent magnet brushless direct current motor. Background technique [0002] In the prior art, the disk-type coreless permanent magnet brushless DC motor often has poor sealing performance between the end cover and the bearing, resulting in a short service life of the motor and potential safety hazards. Contents of the invention [0003] The object of the present invention is to provide a disc-type iron-coreless permanent magnet brushless DC motor, which has better sealing performance between the end cover and the bearing, improves the service life of the motor, and is also conducive to reducing potential safety hazards. [0004] The above-mentioned technical purpose of the present invention is achieved through the following technical solutions: a disc-type coreless permanent magnet brushless DC motor, including a first housing, a second housing th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K29/00H02K5/16H02K1/17H02K3/04H02P6/00
Inventor 左国坤
Owner HUZHOU YUNTIAN NEW ENERGY TECH
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