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Electric machine and method for manufacturing electric machine

A sensor and stator technology, which is applied in the field of manufacturing motors, can solve the problems of loose sensors, can not be fully balanced, sensor components do not exist, etc., to achieve the effect of saving spacers

Active Publication Date: 2018-01-26
VOLKSWAGEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0020] However, there has so far been no possibility of permanently equalizing the thermal expansion in current sensor components
In particular the above-mentioned unfavorable properties of the PTFE sleeve, which lead to changes in the sleeve geometry, cannot be adequately compensated
It is therefore possible that the sensor becomes loose during the operation of the motor, which can lead to the above-mentioned consequences

Method used

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  • Electric machine and method for manufacturing electric machine
  • Electric machine and method for manufacturing electric machine
  • Electric machine and method for manufacturing electric machine

Examples

Experimental program
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Embodiment Construction

[0082] figure 1 A stator 12 of an electrical machine 10 , ie, for example an electric motor and / or generator, is shown in a perspective view. The stator 12 has a stator core 14 in the form of a laminated core, around which wires in the form of windings 16 are wound. Coil ends 18 are formed at the shorter ends of the windings 16 . For example, in order to be able to measure the temperature of coil head 18 during operation of electric machine 10 , electric machine 10 includes a sensor 20 which is not visible in the figure. The sensor is arranged within the stator 12 , in the depicted case in one of the coil heads 18 . For this purpose, the stator 12 can have a cavity 24 in which the sensor 20 is arranged. For measuring the temperature, the sensor 20 can be designed as a temperature sensor, for example as an NTC sensor (Negative Temperature Coefficient), ie as a thermal conductor. For supplying the sensor 20 , the electric machine 10 includes a connection line 22 which is con...

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Abstract

The invention relates to an electric motor and a method for manufacturing the electric motor, the electric motor (10) comprising a stator (12), a rotor (40), a sensor (20) and a coupling line (22) connected to the sensor (20), wherein, A sensor (20) and at least a portion (22) of the coupling lines are arranged within the stator (12) or rotor (40). The motor (10) comprises a filler (30), wherein the filler (30) has a matrix (32) and a hollow body (34) distributed in the matrix (32) filled with an expansion agent (38), and the connecting line At least a part of ( 22 ) is at least partially surrounded by a filling ( 30 ).

Description

technical field [0001] The invention relates to an electric machine, which comprises a stator, a rotor, a sensor and a coupling line connected to the sensor, wherein at least a part of the sensor and the coupling line is arranged in the stator or the rotor. Furthermore, the invention relates to a method for producing an electric machine. Background technique [0002] Electric machines (electromechanical converters), such as drive motors for motor vehicles, starters, generators or starter-generators, convert electrical energy into mechanical energy (motors) or mechanical energy into electrical energy (generators). These electromechanical conversions are based on electromagnetic induction. Such an electric machine comprises a stationary stator (Ständer), which includes a stator core and a stator winding applied thereto, and a movable part, which is designed as a rotor (Läufer) in the most common type of construction. The rotor is rotatable and is typically supported within a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K11/20H02K11/25H02K15/00
CPCH02K3/30H02K11/25H02K11/00H02K15/00H02K15/14
Inventor R.N.贝伦特
Owner VOLKSWAGEN AG