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Motors with highly stable rotors

A rotor and stator technology, applied in the field of motor starting, can solve problems such as increasing costs

Inactive Publication Date: 2019-10-08
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conversely, stronger tabs dictate the need for more magnetic material, thereby increasing costs

Method used

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  • Motors with highly stable rotors
  • Motors with highly stable rotors
  • Motors with highly stable rotors

Examples

Experimental program
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Effect test

Embodiment Construction

[0028] according to figure 1 , the electric machine indicated generally by reference numeral 1 has a stator 2 and a rotor 3 . In the stator 2, a winding system is arranged as usual. exist figure 1 , only the winding head can be seen from the winding system. For example, the electric machine 1 can be designed as a synchronous machine.

[0029] according to figure 1 In the illustration in , the rotor 3 is supported in the housing 6 of the electric machine 1 via the rotor shaft 4 and the bearing 5 . The rotor 3 is thus rotatable about the axis of rotation 7 . The rotor 3 is surrounded radially on the outside by the stator 2 . The electric machine 1 is thus designed as an inner rotor.

[0030] As far as the terms axial, radial and tangential are used above and below, they are always referred to with reference to the axis of rotation 7 . The axial direction means a direction parallel to the rotation axis 7 . The radial direction refers to a direction perpendicular to the r...

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PUM

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Abstract

The application relates to an electric machine with a rotor having a highly stable rotation number. The electric machine (1) comprises the rotor (3) which is rotatable about a rotation axis (7). The rotor (3) is surrounded radially by a stator (2) from the outside. Recesses (9) are introduced into the rotor (3). Each two direct adjacent recesses (9) viewed in the circumferential direction around the rotation axis (7) are arranged in a V-shape so that the tip of the V faces the rotation axis (7) and limbs of the V point towards the stator (2). With regard to the pairs of recesses (9) forming the Vs, at least one of the recesses (9) has a return wire (12), via which the corresponding recess (9) is opened radially and outwardly.

Description

technical field [0001] The invention starts from a motor, [0002] - wherein the electric machine has a rotor rotatable around an axis of rotation, [0003] - wherein the rotor is surrounded radially from the outside by the stator, [0004] - wherein a number of hollows are introduced in the rotor, [0005] - wherein every two directly adjacent hollows around the axis of rotation viewed in the circumferential direction are arranged in a V-shape, so that the tip of this V points towards the axis of rotation and the legs of the V point towards the stator. Background technique [0006] Such motors are generally known. Especially permanent magnet excited synchronous machines are often constructed in this way. In this case, permanent magnets are arranged within the cutout. [0007] When operating a permanently excited synchronous machine as the traction motor of an electric vehicle, the manufacturer of the electric vehicle is often required to have the rotor of the electric ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K1/22H02K1/27
Inventor 伊夫·伯克哈特阿里斯蒂德·斯帕尼奥洛
Owner SIEMENS AG