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Pole box with positioning boss

A technology for positioning bosses and magnetic pole boxes, which is applied to the static parts of the magnetic circuit, the rotating parts of the magnetic circuit, the shape/style/structure of the magnetic circuit, etc. The effect of wide application and simplified assembly process

Active Publication Date: 2015-08-05
CRRC YONGJI ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of unreasonable structure of the existing magnetic pole box, the present invention provides a magnetic pole box with a positioning boss

Method used

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Embodiment Construction

[0016] The pole box with positioning bosses is formed by laminating a number of first pole punches 1 and a number of second pole punches 2 with the same shape. There are permanent magnet installation holes 3 and fixed rod installation holes 4 below the permanent magnet installation holes 3, and there are bolt holes 6 on the side of the second magnetic pole punch 2 that is in contact with the yoke, bolt through holes 6 and fixed rod installation holes 4 connected, that is, the laminated pole box has a permanent magnet installation hole 3, a fixed rod installation hole 4 located below the permanent magnet installation hole 3, and a bolt located on the surface in contact with the yoke and communicated with the fixed rod installation hole 4 The perforated hole 6, the part with the bolt hole 6 is stacked by the second magnetic pole punching piece 2, and the rest is stacked by the first magnetic pole punching piece 1, and the fixing rod 8 processed with the bolt hole is also placed i...

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Abstract

The invention relates to a fixing device of a permanent magnet on a permanent magnet motor, particularly relates to a magnetic pole box with a location boss, and successfully solves the problem that the existing magnetic pole box is unreasonable in structure. The magnetic pole box with the location boss is formed by overlapping and bonding a plurality of first magnetic pole stamping sheets and a plurality of second magnetic pole stamping sheets, permanent magnet installation holes and fixing rod installation holes are correspondingly arranged on the first magnetic pole stamping sheets and the second magnetic pole stamping sheets, bolt punching holes are arranged on the sides of the second magnetic pole stamping sheets contacted with magnet yokes, and the bolt punching holes are communicated with the fixing rod installation holes, namely the permanent magnet installation holes, the fixing rod installation holes and the bolt hole are arranged on the overlapped magnetic pole box. The magnetic pole box is simple in overlapping operation, cancels a welding process of the magnetic pole box and shortens process period. Particularly when the magnetic pole box is assembled, the location boss on the magnetic pole box is matched with a location groove on each magnet yoke, a guiding location tool is removed, assembly accuracy is increased, wedge blocks for assembly are removed, and an assembling process is simplified.

Description

technical field [0001] The invention relates to a fixing device for a permanent magnet on a permanent magnet motor, in particular to a magnetic pole box with a positioning boss. Background technique [0002] As a kind of clean and renewable energy, wind power has attracted more and more attention from all over the world because of its non-pollution to the environment and its good economic benefits. Among the many types of wind turbines, permanent magnet wind turbines have become the representative of the new generation of wind turbines because of their light weight, small size, low cost, high efficiency, and low maintenance. The pole box is the key component of the permanent magnet motor, which has a good fixed and protective effect on the permanent magnet. Existing pole boxes are generally formed by lamination and welding of dovetail-type pole punches. Dovetail-type pole punches such as Figure 4 As shown, the shape of the dovetail-shaped magnetic pole punch is complicated...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K1/18H02K1/28
Inventor 钟绍辉苗言诗崔皓韩振善
Owner CRRC YONGJI ELECTRIC CO LTD
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