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motor

A technology of power electronic devices and sections, applied in the field of motors, can solve the problems of heat loss, cost, high heat medium, etc., and achieve the effect of simple formation and simple design

Active Publication Date: 2020-01-24
VTESCO TECH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since several components in the electric motor generate heat loss and therefore not only the stator has to be cooled, the conduction of the heat medium requires high structural complexity.

Method used

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Experimental program
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Effect test

Embodiment Construction

[0027] figure 1 A cross section of an exemplary embodiment of an electric machine 10 described here is shown, which has a housing 20 and a stator and a rotor 40 .

[0028] exist figure 1 The cross-section shown in , extends longitudinally through the electric machine, in particular through the shaft or axis of rotation 50 of the electric machine. figure 1 Only a part of the electric machine is shown, including the end faces or bearing shields of said electric machine.

[0029] The rotor is equipped with a shaft 42 having an axis of rotation 50 . Furthermore, power electronics 70 are arranged within the electric machine 10 . The power electronics along the figure 1 Extended vertically in the end face. The power electronics includes power capacitors (represented by the uppermost and lowermost rectangles) and a power steering stage, which is represented by two rectangles located between the uppermost and lowermost rectangles .

[0030] The power output stage has a cooling ...

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Abstract

An electric machine (10) having a housing (20), a stator (30, 32) and a rotor (40, 42) is presented. The stator (30, 32) surrounds the rotor (40, 42). The rotors (40, 42) have a shaft (42). The electric machine (10) is equipped with power electronics (40) inside the housing (20). The electric machine (10) has cooling channels (62, 64, 66) which extend along the longitudinal sections (62, 64) and the end section (66). The longitudinal sections ( 62 , 64 ) extend along a hollow cylinder through which the axis of rotation ( 50 ) of the shaft ( 42 ) is guided. The front section (66) extends towards the shaft (42).

Description

Background technique [0001] It is known to cool an electric machine by means of a guided heat medium in order to be able to dissipate the heat loss efficiently, especially during power usage. However, since multiple components in the electric motor generate heat loss and therefore not only the stator has to be cooled, the conduction of the heat medium requires a high structural complexity. Contents of the invention [0002] It is therefore the object of the present invention to provide a possibility with which heat losses can be removed from the electric machine in a simple manner. [0003] Disclosure of the present invention: [0004] It has been found that the cooling channel can be formed particularly easily if the cooling channel has a longitudinal section and an end section, wherein the longitudinal section extends along the stator and the end section of the cooling channel adjoining it extends along a surface Guided, the axis of rotation of the motor extends through ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K5/20H02K11/042
CPCH02K5/203H02K11/05H02K5/20H02K5/15H02K11/33H02K9/19H02K9/16H05K7/2089
Inventor D.路德维格S.罗格E.希尔默
Owner VTESCO TECH GMBH