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Electrical machine with direct stator cooling

A stator and cooling channel technology, which is applied in the field of electromechanical converters, can solve the problems of electromechanical converters such as heating, loss, and high power, and achieve the effects of small weight, space saving, and uniform cooling

Inactive Publication Date: 2015-10-07
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] High power losses occur in the case of highly utilized electromechanical converters, which lead to significant heating of the electromechanical converter

Method used

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  • Electrical machine with direct stator cooling
  • Electrical machine with direct stator cooling

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Experimental program
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Embodiment Construction

[0019] figure 1 A quarter section of a longitudinal section of a rotationally symmetrical electromechanical converter 1 passing parallel to its axis 2 is depicted. figure 2 A half section of a cross section perpendicular to the axis 2 of the rotationally symmetrical electromechanical converter 1 is shown. here figure 1 and figure 2 The thick arrows in the figure indicate the course of the insulating cooling liquid 12 passing through the stator 6 , and the thin arrows indicate the possible course of the cooling gas, generally air, through the rotor 4 of the electromechanical converter 1 . The same elements are denoted by the same reference numerals in corresponding figures.

[0020] figure 1 A stator 6 is described in , which is mounted in a carrier structure 18 of an electromechanical converter 1 , for example a housing of said electromechanical converter 1 . Load bearing structure 18 in figure 1 In is only expressed as a concentric outer circle. Due to the high elect...

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Abstract

Electrical machine with direct stator cooling. The invention relates to an electromechanical transformer (1) with at least one rotor (4) which is arranged on a shaft (2) and is arranged in an encapsulated (30) stator (6), the laminated core (8) and winding (10) of which are surrounded by an insulating cooling fluid (12), wherein the cooling fluid (12) can be introduced via first cooling ducts (14) which are arranged radially with respect to the shaft (2) in the centre of the stator and can be discharged at each axial end of the stator (6) radially with respect to the shaft (2) via second cooling ducts (16) in the winding head region, or vice versa. As a result it is possible to provide a compact and robust electromechanical transformer 1 which owing to its lightweight design with a high torque density is suitable for use, for example, in aircraft or other vehicles.

Description

technical field [0001] The invention relates to an electromechanical converter with stator-direct cooling. Background technique [0002] Electromechanical converters have been known for a long time. Electromechanical converters also find widespread use in this field during periods of fossil fuel scarcity for driving different vehicles. Due to their robustness, their simple construction and high efficiency, today's electromechanical converters are also installed in vehicles - hybrid vehicles - or aircraft. Depending on requirements, electromechanical converters can be used as generators or motors. Primarily in vehicles with an electric drive, or also partially with an electric drive—hybrid vehicles—they are used both as a vehicle drive and as a generator—for example, to recover electrical energy during braking of the vehicle. [0003] In order to minimize the energy consumption of the vehicle, the aim is to design electromechanical converters with the highest possible effi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K7/08H02K16/02H02K9/197
CPCH02K9/197H02K1/32H02K3/24H02K7/08H02K16/02H02K9/19
Inventor 奥拉夫·克尔纳
Owner SIEMENS AG