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Electric Motor and Cooler Fan

An electric motor and cooler technology, applied in the direction of engine cooling, electric components, shock absorbers, etc., can solve problems such as increase, loud noise, unfavorable resonance, etc.

Active Publication Date: 2021-11-30
BROSE FAHRZEUGTEILE GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Resonance unfavorably manifests itself, for example, as greater noise generation
In addition, additional loads and consequent wear of the components connected to the stator are increased due to the resulting vibrations

Method used

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  • Electric Motor and Cooler Fan
  • Electric Motor and Cooler Fan
  • Electric Motor and Cooler Fan

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0044] figure 1 A cooler fan 1 is shown in an exploded view with an electric motor 2 , which is provided in particular for use in a motor vehicle (not shown further), with a rotor 4 and a stator 6 . The rotor 4 is rotatably mounted about an axis of rotation D by means of a pivot pin 8 , wherein the axis of rotation D extends in an axial direction A. As shown in FIG. The pivot pin 8 is supported here by means of bearings 10 which are each arranged on the pivot pin 8 on the end side. In the figures, the rotor 4 is configured as an inner rotor, ie the stator 6 surrounds the rotor 4 on the outside based on a radial direction R running perpendicularly to the axial direction A. However, in a variant of the electric motor 2 according to the invention, which is not further shown, the rotor 4 is designed as an outer rotor. The embodiments set out hereinafter apply in an analogous manner.

[0045] The rotor 4 is in driving connection with the fan wheel 11 . On the outer circumferenc...

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PUM

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Abstract

The present invention relates to electric motors and cooler fans. The electric motor (2) has a rotor (4) mounted rotatably about an axis of rotation (D) extending in the axial direction (A) and a stator (6) with stator teeth (20) in the The T-shape on the tooth foot side is widened to form pole tabs (21) extending in the circumferential direction (U). A certain number of reinforcing elements (42) are provided in the stator slots (24) for accommodating the coils (25) of the stator winding and between the facing pole tabs (21) respectively. Introduced into a corresponding number of slots (30), the reinforcing elements (42) are positioned on mutually facing pole webs (21) of adjacent stator teeth (20) in the radial direction (R) by means of abutment shoulders ( 43) to keep. The cooler fan (1) has the aforementioned electric motor.

Description

technical field [0001] The invention relates to an electric motor with a rotor mounted rotatably about an axis of rotation extending in the axial direction and a stator with radially oriented stator teeth having T-shaped widened pole webs . Furthermore, the invention relates to a cooler fan, in particular for a motor vehicle, which has such an electric motor. Background technique [0002] A brushless electric motor includes a rotatably supported rotor (mover) and a stationary stator. In this case, the stator has stator teeth arranged radially, for example in a star shape, between which stator slots are formed in each case. Stator windings in the form of individual coils, in particular wound from wire, are accommodated in these stator slots. Coils connected to one another, for example in a star or delta circuit, are charged with an alternating current to generate a rotating field. Furthermore, the rotor includes, for example, permanent magnets whose magnetic field interac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K1/16H02K7/14
CPCH02K1/165H02K7/14H02K3/522H02K1/16F04D25/08F01P5/04F01P2005/046F04D13/0686F16F15/02F16F2224/02H02K1/146H02K5/24
Inventor 丹尼尔·希尔施欧根·赫尔曼赖因哈德·梅纳梅尔廷·普菲斯特雅尼克·舒尔茨安德烈亚斯·勒丁赖纳·舍勒
Owner BROSE FAHRZEUGTEILE GMBH & CO KG