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Electrically switchable electric motors and corresponding air pulsation devices

A technology of air pulsation and electric motors, applied to synchronous motors with stationary armatures and rotating magnets, electric components, electrical components, etc., can solve problems such as interference

Active Publication Date: 2020-12-15
VALEO SYST THERMIQUES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, current switching in the stator coils generates electromagnetic waves that can interfere with the operation of other electronic devices located nearby

Method used

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  • Electrically switchable electric motors and corresponding air pulsation devices
  • Electrically switchable electric motors and corresponding air pulsation devices
  • Electrically switchable electric motors and corresponding air pulsation devices

Examples

Experimental program
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Embodiment Construction

[0047] An air pulsating device 1, capable of sucking in or blowing out air, comprising at least one electrically switchable electric motor 2, which can be designed in particular to drive a ventilator wheel 4 in rotation via an output shaft 8 of the motor, here of the type with fins slice 6. The device may also comprise at least one support device 10 combining several functions including: supporting the electric motor 2, cooling the components of said device, and supporting an electronic control board 12 for controlling said motor.

[0048] The electric motor mainly comprises an induction stator 14 and an induced rotor 16 supporting an output shaft 8 designed to drive a ventilation wheel 4 . A stator 14 is rigidly connected to the support means 10 of the motor, and a rotor 16 is disposed about the stator 14 so as to be driven in rotation under the action of the magnetic field generated by the windings and magnets associated with the rotor 16 and stator 14 .

[0049] The stator...

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PUM

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Abstract

An air pulsating device according to the invention comprises an electric motor (2) comprising a rotor and a stator (14). The stator includes teeth arranged such that a gap (30) for winding a coil is formed between two adjacent teeth. The stator is in contact with support means for supporting the motor, the support means being metallic and electrically connected to electrical ground. At least one shield (50) is electrically connected to the support means, said at least one shield comprising a closure assembly (62, 68) extending axially so as to fill said gap between two teeth of the stator (14) at least one of the .

Description

technical field [0001] The present invention relates to parts of electric motors, in particular electrically switched electric motors. More specifically, the present invention relates to an air pulsation device for an electric vehicle including such an electric motor. An air pulsating device equipped with an electric motor according to the invention is used, for example, in ventilation, heating and / or air conditioning systems of electric vehicles. Background technique [0002] An electrically switched motor, or brushless DC motor, includes a rotor and stator assembly, each of these components having electromagnetic elements mounted thereon that interact to displace the rotor relative to the stator. The rotor and the stator are mounted independently of each other in the motor, which must ensure that the relative positioning between these two elements is correct for optimal operation of the motor. In addition, current switching in the stator coils generates electromagnetic w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K11/01
CPCH02K21/22H02K1/187H02K5/1735H02K2211/03H02K11/0141H02K1/14H02K5/02H02K5/10H02K5/225
Inventor G·卡波伦A·法克
Owner VALEO SYST THERMIQUES