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Stator, motor and method for winding stator teeth of stator of brushless motor

A technology of stator teeth and stator, applied in the field of stator

Pending Publication Date: 2022-05-27
NIDEC MOTORS & ACTUATORS GERMANY GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The downside of this is that the wire end is always close to the wire end of the adjacent tooth

Method used

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  • Stator, motor and method for winding stator teeth of stator of brushless motor
  • Stator, motor and method for winding stator teeth of stator of brushless motor
  • Stator, motor and method for winding stator teeth of stator of brushless motor

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Embodiment Construction

[0031] figure 1 The stator teeth 1 are shown with an insulator 2 which insulates the windings (not shown in the figures) from the stator teeth 1 . Each stator tooth 1 has an elongated tooth body 3 and a tooth root 4 adjoining the tooth body 3 at a radial end, and a tooth tip 5 adjoining the tooth body 3 at the other end. The tooth roots 4 are wider than the tooth tips 5 in the circumferential direction relative to the longitudinal axis of the stator, and the tooth roots 4 are located radially outside the tooth tips 5 . The insulator 2 surrounds parts of the tooth body 3 , the tooth tip 5 and the tooth root 4 . A winding chamber 6 in which the insulator 2 is wound in each case by a winding wire (not shown in the figures). The winding chamber 6 has a winding space which is bounded on the inside by an inner flange 7 and on the outside by an outer flange 8 in the radial direction relative to the longitudinal axis of the stator. The outer flange 8 has a slot-shaped first recess ...

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Abstract

The invention relates to a stator, an electric machine and a method for winding stator teeth of a stator of a brushless electric machine, the stator having a rotationally symmetrical stator core with a plurality of stator teeth, each stator tooth being at least partially surrounded by an insulator having a winding chamber with a winding space, the winding space being delimited by an inner flange and an outer flange, the stator has a coil wound around an insulator in a winding chamber, a winding of the coil is formed by a winding wire having a first winding wire end portion and a second winding wire end portion, and an outer flange of the insulator has a first through-recess introduced from and passing through an end face, and a second recess inside the end face, the end portions of the two winding wires are respectively inserted into corresponding recesses, the recesses extend from the end face of the insulator with the longitudinal axis parallel to the longitudinal axis of the stator, a first through recess is arranged in the middle of the stator teeth in the circumferential direction with respect to the central axis of the stator, and a second recess is arranged in a transverse end region of the outer flange in the circumferential direction.

Description

technical field [0001] The present invention relates to a stator, a motor having such a stator and a method for winding stator teeth of a stator of a brushless motor. Background technique [0002] As a three-phase motor, the brushless motor has a stator with a plurality of stator teeth, for example, the plurality of stator teeth are arranged in a star shape, each stator tooth is surrounded by an insulator, and each insulator is surrounded by stator windings. In conventional windings, the wire ends typically extend left and right at the outer ends of the stator teeth. The disadvantage of this is that the wire ends are always close to the wire ends of the adjacent teeth. The coils are connected to the coil ends of the individual strands and are interconnected in a predetermined manner by common connecting conductors. In the case of a brushless motor as a three-phase motor, the stator has three wires, and therefore at least three connecting conductors, in which the rotor or a...

Claims

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Application Information

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IPC IPC(8): H02K1/14H02K3/18H02K3/34H02K3/50H02K3/52H02K15/095
CPCH02K1/146H02K3/18H02K3/345H02K3/50H02K3/522H02K15/095H02K2203/06H02K2213/03H02K2203/12H02K2203/09
Inventor K·奥佳华T·奥美达
Owner NIDEC MOTORS & ACTUATORS GERMANY GMBH
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