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Stator blade for an electric motor

A stator punching and motor technology, which is applied in the field of stator punching, can solve the problems of affecting the efficiency of the motor part, torque, affecting the magnetic field, etc.

Inactive Publication Date: 2011-04-13
WHIRPOOL SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Among them, the design of the punching sheet of the stator part will directly affect the generation of the magnetic field, affect the efficiency of the motor part and the generated torque

Method used

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  • Stator blade for an electric motor
  • Stator blade for an electric motor
  • Stator blade for an electric motor

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Experimental program
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Embodiment Construction

[0037] The present invention will be described in more detail below based on the actual application shown in the blueprint.

[0038] figure 1 Shown is a typical stator blanking 1 for a compressor motor. The stamping sheet 1 includes a central hole 2 and a plurality of grooves 3 distributed along the central hole 2 . On this punch, the diameter of the center hole is about 55mm.

[0039] The groove 3 is connected to the central bore 2 by a channel or collar 4 . Between two consecutive grooves 3 teeth 5 are formed, the inner edges of these teeth forming the edge of the central hole 2 .

[0040] according to figure 2 As shown, each groove 3 has a shape similar to that of a "sailor's hat", and its internal structure 3 forms an inverted trapezoid 3a, and its upper edge is a rounded oval 3b. Between the trapezoidal and dome-shaped edges (or between the side and upper edges of the groove 3) are curved edges 3c and 3d with a radius of 1.0 mm. The inclination angle formed between...

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PUM

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Abstract

The present invention relates to a stator blade (10) for an electric motor, comprising a central opening (20), a plurality of slots (30) spaced around the opening (20), and a plurality of teeth (50) formed between every two consecutive slots (30). The corners (35a, 35b, 35c, 35d) between the slot edges (30e and 30a, 30e and 30b, 30b and 30d, and 30c and 30a) are fillet radii and the angles formed by these edges are acute angles. The teeth (50) have two side edges (50a, 50b) inclined towards each other and defined by the side edges (30b and 30a) of two consecutive slots.

Description

technical field [0001] The present invention relates to stampings for stators, and more particularly, to stampings for stators for electric motors used on compressors in refrigeration equipment. Background technique [0002] In refrigeration equipment, the compressor is typically driven by an induction motor. This type of motor consists of a moving part (ie the rotor) and a stationary part (ie the stator). For the operation of the motor, the stator part generates a magnetic field that induces a current in the rotor part, and the interaction between this induced current and the magnetic field produces a torque that drives the rotor. [0003] As is well known to those skilled in the art, the core of the rotor section is the combination of a set of punches (the stator's punches). Each punch has a central hole, and is closely connected with the stator and the grooves distributed around the central hole, so that the conductive coils made of conductive material can be arranged. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/12H02K1/14
CPCH02K1/165H02K2213/03H02K1/146H02K1/14H02K1/16
Inventor F·J·H·卡卢弗L·V·L·朱尼奥尔
Owner WHIRPOOL SA
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