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Large pole number stator end plate

A stator end plate and pole number technology, which is applied in the direction of magnetic circuit shape/style/structure, magnetic circuit static parts, etc., can solve the problems of narrowing of the tooth portion and difficulty in processing the integral end plate body, and achieve simple processing, It is convenient for ventilation and heat dissipation, and the effect of simple process difficulty

Active Publication Date: 2021-04-02
CHONGQING ELECTRIC MACHINE FEDERATION
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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 stator end plate with a large number of poles, which solves the problems in the prior art that when the number of slots on the iron core is large, the teeth of the iron core will become narrow and the processing of the integral end plate body is difficult

Method used

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  • Large pole number stator end plate
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  • Large pole number stator end plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Basic as attached figure 1 Shown: Stator end plate with a large number of poles, including the end plate body, the end plate body includes a plurality of fan-shaped splicing blocks 1, the fan-shaped splicing blocks 1 are 12mm thick and non-magnetic stainless steel plates (such as austenitic stainless steel), and the fan-shaped splicing The inner side of the block 1 is a tooth portion 11; when in use, the bottom surface of the sector-shaped splicing block 1 directly contacts the stator core, and the tooth portion 11 of the sector-shaped splicing block 1 is pressed on the teeth of the iron core. The fan-shaped splicing block 1 is also provided with an installation hole 2 for the screw rod to extend in, and the installation hole 2 is located at the outer edge of the fan-shaped splicing block 1 .

Embodiment 2

[0034] The difference between this embodiment and Embodiment 1 is that the bottom surface of the fan-shaped splicing block 1 is fixed with a raised strip 3 for contacting the stator core (such as figure 2 As shown), the end of the raised strip 3 is a bevel, and the thickness of the raised strip 3 is 7mm; and the fan-shaped splicing block 1 of this embodiment is a carbon steel plate with a thickness of 10mm. When in use, cover the fan-shaped splicing block 1 on the end face of the iron core, and the convex strip 3 is in direct contact with the end face of the iron core. Although the carbon steel plate is magnetically conductive and generates heat itself, the convex strip 3 makes the bottom surface of the fan-shaped splicing block 1 and the end face of the iron core There are gaps, which can increase the effect of heat dissipation.

Embodiment 3

[0036] The difference between this embodiment and Embodiment 2 is that the fan-shaped splicing block 1 in Embodiment 2 is replaced by a non-magnetic stainless steel plate (such as austenitic stainless steel). Its using method is the same as embodiment 2, but because the fan-shaped splicing block 1 is not magnetically conductive, it can hardly produce heat, and the heat inside the iron core (for example, the heat generated by the hysteresis loss of the iron core, the heat produced by the stator and rotor resistance) Heat) can be dissipated through the gap between the bottom surface of the fan-shaped splicing block 1 and the end surface of the iron core, so that there are many heat dissipation channels and the heat dissipation effect is better.

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Abstract

The present invention relates to the technical field of iron core location, especially to a stator end plate with a large pole number. The stator end plate comprises an end plate body, the end plate body comprises a plurality of fan-shaped splicing blocks, and the inner side of each fan-shaped splicing block is a tooth portion; the bottom portions of the fan-shaped splicing blocks are in contact with stator cores, or raised lines being in contact with the stator cores are fixed at the bottom surfaces of the fan-shaped splicing blocks. The problems are solved that the tooth portion of the ironcore becomes narrow when there are many grooves on the iron core and the whole end plate body is difficult to process in the prior art.

Description

technical field [0001] The invention relates to the technical field of iron core positioning, and specifically discloses a stator end plate with a large number of poles. Background technique [0002] The iron core is formed by stacking multiple stator punches, and the inner ring of the stator punches is tooth-shaped, so that the center of the iron core formed by the stacking forms multiple slots; the slot structure of the traditional iron core is usually a square slot, In order to press the iron core tightly and prevent the stator punch teeth at the end of the iron core from lifting, an end plate is provided at the end of the iron core; the existing end plate is an ordinary steel sheet with an integrated structure, and the end plate is provided with a The teeth with similar contours of the iron core are generally inverted trapezoidal with wide addendum and thin tooth root; the traditional way is to place the end plates at both ends of the iron core, and then laminate with th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K1/16
CPCH02K1/16
Inventor 王新华
Owner CHONGQING ELECTRIC MACHINE FEDERATION