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Stator punching piece of motor with small notch and coil instillation method thereof

A notch motor and stator punching technology, which is applied in the direction of electromechanical devices, manufacturing motor generators, electrical components, etc., can solve the problems of difficult stator punching coil installation, low efficiency of coil assembly work, increased motor loss, etc., to achieve assembly High efficiency, easy installation, and the effect of increasing magnetic flux

Active Publication Date: 2014-01-01
HANGZHOU QIANJIANG REFRIGERATION COMPRESSOR GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention overcomes the deficiencies in two aspects of the existing stator punching sheet: one is that after the coil is installed, the width of the notch opening of the wire slot of the stator punching sheet is relatively large, which increases the loss of the motor, reduces the efficiency of the motor, and increases the The temperature rise of the motor; the second is that it is difficult to install the coil on the stator punching sheet with a small slot width of the wire slot, and the coil assembly work efficiency is low

Method used

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  • Stator punching piece of motor with small notch and coil instillation method thereof
  • Stator punching piece of motor with small notch and coil instillation method thereof
  • Stator punching piece of motor with small notch and coil instillation method thereof

Examples

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Effect test

Embodiment 1

[0027] Embodiment 1: A stator punching piece of a small slot motor (see attached figure 1 , attached figure 2 ), including the punching body 1, a circular through hole 2 is provided in the middle of the punching body, and several wiring grooves 3 are arranged on the side wall of the through hole along the circumference of the through hole, and the wiring grooves are arranged along the circumference of the through hole. Evenly distributed, the width of the wiring trough gradually increases from the notch to the bottom of the trough, and the bottom of the wiring trough is in a concave arc-shaped structure. Both edge positions of the wire slot notch on the punching body are provided with extension ribs 4, and the extension ribs and the punching body are in one structure, and the two extension ribs arranged in the same notch are oppositely arranged and a gap is provided between them. The width of the gap between the two extension ribs arranged in the same notch is 0.1mm-1.0mm. I...

Embodiment 2

[0029] Embodiment 2: A stator punch of a small-slot motor, the structure of which is the same as that of Embodiment 1. A coil installation method for stator punching of a small-slot motor, the steps of which are similar to those in Embodiment 1. The wiring trough arranged around the through hole divides the punch body near the through hole into several separators 5, and the separator is set between two adjacent wire troughs. In the second step, a special high The punching die bends the separator vertically upwards, and in the fourth step, a special high punching die is used to flatten the separator before flattening the stacked extension ribs. Other steps are the same as in Example 1. The vertical bending of the separator increases the aperture of the through hole, and the width of the gap between the two relative extension ribs also increases accordingly, which is more convenient when installing the coil.

Embodiment 3

[0030]Embodiment 3: A stator punch of a small-slot motor, the structure of which is the same as that of Embodiment 1. A coil installation method for stator punching of a small-slot motor, the steps of which are similar to those in Embodiment 1. In this embodiment, one of the two adjacent extension ribs is bent upward and the other is bent downward, and all the extension ribs are bent upward and downward alternately, and the vertical bending angle of the extension rib is 60 degrees. Other steps are the same as in Example 1. One of the two adjacent extension ribs is bent upwards and the other is bent downward. After all the stator punches are stacked together, the slot width of the slots of the uppermost and lowermost stator punches is larger than that of the two adjacent extension ribs. The width of the notch opening of the wire-loading slot formed by bending down is set by bending, so that the process of installing the coil to the wire-loading slot is more convenient.

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Abstract

The invention discloses a stator punching piece of a motor with a small notch and a coil instillation method thereof, wherein the defects that in one aspect, after a coil is installed, the notch of a wiring trough of the stator punching piece is wide, loss of the motor is increased, efficiency of the motor is reduced, and temperature rising of the motor is increased; in the other aspect, the coil is difficult to install through the stator punching piece with the wiring trough of a small width, efficiency of assembling operation of the coil is low are overcome. The stator punching piece comprises a punching piece body, wherein a through hole is formed in the stator punching piece body, a plurality of wiring troughs are formed in the side wall of the through hole along the circumference of the through hole, lengthening ribs are arranged on two edges of the notch of each wiring trough of the punching piece body, every two lengthening ribs arranged in the same notch are oppositely arranged, and a gap is formed between every two lengthening ribs. The lengthening ribs are bent in the coil assembling process, the width of the gaps is increased, and coil assembling is facilitated. The width of each notch is smaller, increasing of magnetic flux of the motor is facilitated, loss of the motor is reduced, efficiency of the motor is improved, temperature rising of the motor is reduced, and oil assembling efficiency is high.

Description

[0001] technical field [0002] The invention relates to a motor part of a compressor, more specifically, it relates to a small-notch motor stator punching plate capable of increasing magnetic flux. Background technique [0003] As the country vigorously promotes energy saving and emission reduction, various compressor factories improve the performance of compressor motors through continuous technical improvement to achieve the goal of energy saving. In the manufacturing process of the refrigeration compressor motor, it is necessary to use the motor stator stamping, and several wiring slots are arranged on the stator stamping, and coils are installed in the wiring slots. In the actual production process, the slot width of the wire slot is generally designed to be wider. The larger the slot width, the greater the loss of the motor, the lower the efficiency of the motor, and the higher the temperature rise of the motor. Therefore, the slot width of the stator punching sl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/16H02K15/085
Inventor 张云
Owner HANGZHOU QIANJIANG REFRIGERATION COMPRESSOR GRP CO LTD
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