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Winding arrangement, method for producing winding arrangement and electric machine

A winding and multi-phase motor technology, applied in the field of manufacturing such winding devices and motors, can solve problems such as the negative impact of smooth motor operation, ohmic loss, and the negative impact of overall efficiency, to reduce ohmic losses, low material costs, and reduce longitudinal extended effect

Active Publication Date: 2020-03-06
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The coil wires in the winding head do not contribute to the field distribution in the air gap, but cause ohmic losses and thus negatively affect the overall efficiency
Second, the large winding heads also lengthen the longitudinal extension of the stator, which results in a longer longitudinal extension of the rotor
In addition to the greater mass of the motor, a longer rotor also has a negative effect on the smooth running of the motor (Laufruhe)

Method used

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  • Winding arrangement, method for producing winding arrangement and electric machine
  • Winding arrangement, method for producing winding arrangement and electric machine
  • Winding arrangement, method for producing winding arrangement and electric machine

Examples

Experimental program
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Embodiment Construction

[0021] figure 1 A winding arrangement 3 according to the invention of a stator 1 of an electrical machine 100 having twelve stator slots 2 is shown (not otherwise shown). In order to illustrate the winding arrangement 3 , the stator 1 and the coils 8A, 8B arranged in the stator slots 2 are shown in a horizontal plane 11 in a representation expanded in the circumferential direction. The stator slots 2 arranged next to each other along the horizontal plane 11 are numbered from left to right in the illustration by unfolding, the first stator slot 2 being assigned the Roman numeral I in the figure, the last stator arranged on the far right Slot 2 has Roman numeral XII in the figure. To form the winding arrangement 3 , the coil sides 6 of the coils 8A, 8B formed from the coil wires 7 are inserted into the stator slot 2 in such a way that the two coil sides 6 of the coils 8A, 8B are either formed as a lower layer 9 deep in the stator slot 2 , or construct an upper layer 10 arrange...

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Abstract

The invention relates to a winding arrangement (3) for a multi-phase electric machine (100; 100a), in particular an asynchronous machine or synchronous machine, comprising a stator (1) having stator slots (2), wherein at least one first coil (8A) formed by a coil wire (7) forms a lower layer (9) in the stator slots (2) and at least one second coil (8B) forms an upper layer (10) on the lower layer(9) in the stator slots (2), and wherein the first and the second coils (8A, 8B) are electrically contacted with one another.

Description

technical field [0001] The invention relates to a winding arrangement for a polyphase AC motor according to the preamble of claim 1 . The invention also relates to a method for producing such a winding arrangement, and to an electric machine having a winding arrangement according to the invention. Background technique [0002] A winding arrangement for a polyphase electric machine is known from DE 92 12 889 U1 having the features of the preamble of claim 1 . The known winding arrangement is characterized by a stator with stator slots, in which winding arrangement a coil composed of coil wire forms a double-layer winding in the stator slots. In this case, the coils are arranged in the stator slots in such a way that both coil sides of the coils can be assigned either to the upper layer or to the lower layer. In other words, the coils are arranged in the stator slots in two separate layers directly one above the other, each corresponding to a single-layer winding. The windi...

Claims

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Application Information

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IPC IPC(8): H02K3/28
CPCH02K3/28H02K17/12
Inventor I·L·耶普雷
Owner ROBERT BOSCH GMBH
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