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Stator assembly for an electric motor

A stator structure and stator slot technology, applied in structural connection, magnetic circuit shape/style/structure, electromechanical devices, etc., can solve the problems of position uncertainty temperature controller and winding, high manufacturing cost, aggravated interference, etc., to achieve reliable Cut off, improve safety, heat detection reliable effect

Active Publication Date: 2011-04-27
EBM PAPST MULFINGEN GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In practice, however, this is often not possible in an optimal manner, because, due to manufacturing tolerances, positional uncertainty or even an air gap distance between the temperature controller and the winding may occur
Therefore, due to the uncertain temperature detection, it may occur that the disturbance is increased until the motor stops due to thermal damage
In addition, the temperature controller often must be manually wired when the motor or stator is assembled, resulting in prohibitive manufacturing costs

Method used

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  • Stator assembly for an electric motor
  • Stator assembly for an electric motor
  • Stator assembly for an electric motor

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Embodiment Construction

[0022] In the different figures of the drawings, the same parts are always provided with the same reference signs, so that if the components have been described once before, the relevant descriptions also apply similarly to the other figures of the figures, Corresponding parts with corresponding reference numerals are thus likewise recognizable in these figures.

[0023] The stator structure 1 according to the invention essentially comprises a stator lamination 2 with a stator winding 6 extending through a stator slot 4 . Outside the stator slots 4 , the stator windings 6 each extend from slot to slot in the area of ​​the end faces of the stator laminations 2 and form so-called winding ends 8 on each end face. Furthermore, the stator structure 1 has an interconnection device 10 for electrically connecting the stator windings 6 with each other and with supply lines (not shown). The switching device 10 essentially comprises a circular or annular switchboard 12 lying in a plane ...

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Abstract

A stator arrangement for an electric motor. The stator arrangement including a laminated stator core with stator windings running through stator grooves and forming winding overhangs at each end face of the laminated stator core. The stator arrangement also includes an interconnection unit having a switching disk covering the winding overhangs on one end face of the stator. The switching disk further including at least one temperature monitor mounted thereon for monitoring the temperature of the stator windings. The temperature monitor being seated in a holding pocket that is resiliently connected to the switching disk in such a manner that, when positioned in one of the stator grooves, it is resiliently biased into engagement with a stator winding.

Description

technical field [0001] The invention relates to a stator arrangement (Stator-Anordnung) for an electric machine, in particular for an external rotor electric machine, according to the preamble of claim 1, the stator arrangement comprising stator laminations and an offset arrangement (Verschaltungseinrichtung), The stator laminations have stator windings extending through stator slots and forming winding ends on the end faces of the stator laminations, the offset means for the stator windings, wherein the offset means have a covering on the stator end faces A switchboard at the winding end, the switchboard having at least one temperature controller fixed thereon for monitoring the temperature of the stator windings. Background technique [0002] An electric machine with such a stator structure is described in patent document EP 2 043 234 A1. When the electric machine is assembled axially, the unit consisting of the stator laminations on which the stator windings are wound an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K11/00H02K1/16H02K5/22
CPCH02K11/0047H02K11/25H02K3/50H02K2203/09
Inventor 奥思玛·斯特勒贝尔迪特尔·贝斯特
Owner EBM PAPST MULFINGEN GMBH & CO KG
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