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Rotor comprising protruding webs

A technology for connecting pieces and rotors, which is applied in the fields of manufacturing the rotors, electric machines, and laminations. It can solve the problems of damaging the efficiency of the motor and the quality of the motor, and achieve the effect of saving space and small imbalance.

Active Publication Date: 2017-08-18
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A funnel-shaped notch in the lamination area impairs the efficiency of the motor and thus the quality of the motor, since the magnetic flux is blocked

Method used

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  • Rotor comprising protruding webs
  • Rotor comprising protruding webs
  • Rotor comprising protruding webs

Examples

Experimental program
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Effect test

Embodiment Construction

[0080] figure 1 One embodiment of a rotor 10 is shown. In the case of an electric machine 50 , the rotor 10 includes a laminated core 20 with layers 100 , 200 laminated in the axial direction 3 . The laminated core 20 extends in the axial direction 3 from the first axial end 1 to the second axial end 2 , wherein each layer 100 , 200 has a plurality of laminated core regions 115 , 116 , 215 , 216 . To describe the construction of this embodiment, layers 100, 200 are alternately described as layer 100 and adjacent layer 200, although they are in the embodiment made from laminations 15 of the same design (see figure 2 , image 3 ). However, the layers 100, 200 are alternately twisted by the twist angle β according to figure 2 and image 3 stacked on top of each other. The laminations 15 are made of electrical steel sheet having a thickness of less than 1 mm, typically less than 0.5 mm or 0.35 mm. Each layer 100, 200 has a plurality of lamination areas 6, 16, 115, 116, 21...

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PUM

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Abstract

The invention relates to a rotor (10) for an electrical machine (50) comprising a stack of sheets (20) which extends in an axial direction (3) from a first axial end (1) to a second axial end (2), wherein the stack of sheets (20) has layered layers (100, 200, 1100) in the axial direction (3), wherein each layer (100, 200, 1100) has a plurality of sheet areas (6, 115, 116, 117, 126, 215, 216, 217, 1115), wherein there are flow conduction blocks (11, 31, 1113, 3113), which are situated between adjacent sheet areas (6, 115, 116, 215, 216), wherein at least one flow conduction block (11, 31, 1113, 3113) is cast with a non-ferromagnetic potting compound (5), wherein the potting compound (5) respectively extends in the at least one flow conduction block (11, 31, 1113, 3113) from the first axial end (1) to the second axial end (2), wherein there are fastened sheet areas (115, 116, 117, 126, 215, 216, 217, 1115) which respectively have at least one web (111, 112, 113, 121, 122, 124, 211, 212, 213, 221, 222, 1111, 1112, 112, 1122, 1123) protruding into the potting compound (5), wherein the protruding web at least in part extends in a direction (7, 8, 17, 18) which has a component in the axial direction (3), wherein in each layer (100, 200, 1100) at least one sheet area (115, 215, 1115) is an fastened sheet area, an electrical machine comprising the rotor (10), a motor vehicle (60) comprising the rotor (10), a stack of sheets (20) for the rotor, as well as a method for manufacturing the rotor (10) and the use of sheets (15, 1115) for the rotor (10).

Description

technical field [0001] The invention relates to a rotor for an electric machine according to the preamble of claim 1 . The invention also relates to: an electrical machine comprising a rotor; a motor vehicle comprising a rotor; and a laminated core for the rotor. Furthermore, the invention relates to a method for producing the rotor and to a use for the rotor lamination. Background technique [0002] A rotor of this type can be mounted shaft-fixed in an electric machine via a first bearing arrangement and a second bearing arrangement so as to be rotatable about an axis of rotation. [0003] During operation of an electric machine with such a rotor as a generator, the rotor is rotated about the axis of rotation by mechanical energy. Mechanical energy can be converted into electrical energy by means of the magnetic interaction between the poles of the rotor and the poles of the stator across the air gap. Electrical energy can be harvested by connecting an electrical user at...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K15/12H02K1/24H02K15/02
CPCH02K1/246H02K15/02H02K15/12H02K19/103H02K1/24H02K19/10
Inventor 克劳斯·比特纳克劳斯·基希纳马蒂亚斯·瓦尔穆特
Owner SIEMENS AG