motor unit

一种电动机、机组的技术，应用在电动组件、电机、电动汽车等方向，能够解决绕组绝缘、问题、问题轴电流等问题，达到最优化冷却效果、节约空间的效果

Inactive Publication Date: 2015-08-19
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such voltage peaks can for example cause problems with winding insulation and shaft currents

Method used

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Examples

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Embodiment Construction

[0040] figure 1 A first embodiment of a schematically illustrated electric motor assembly 5 is shown. It can be seen therein that the heat exchanger 2 is arranged between the converter 3 and the electric motor 1 . The electric motor 1 here has a motor shaft 4 . By arranging the heat exchanger 2 between the converter 3 and the electric motor 1 , not only the converter 3 but also the electric motor 1 can be cooled with the aid of this heat exchanger 2 . As a result, the electric motor unit 5 can be constructed in an extremely compact manner. Another advantage is that the connection of the converter 3 to the electric motor 1 can already be realized by manufacturing the electric motor unit 5 in the workshop. Furthermore, the electric motor unit 5 can be fully started already in the workshop. Quality problems on the customer's side can thus be avoided.

[0041] The layout of heat exchanger 2 and converter 3 can be flexibly designed, see e.g. figure 2 . figure 2A second emb...

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Abstract

The invention relates to a motor unit (5) comprising a motor (1), a heat exchanger (2) and an inverter (3) for the motor (1). In order to provide a compact, low-cost motor unit it is proposed that the heat exchanger (2) is embodied for cooling both the motor (1) and the inverter (3).

Description

technical field [0001] The present invention relates to an electric motor unit comprising an electric motor, a heat exchanger and a converter for the electric motor. Background technique [0002] Currently, low voltage electric motors are primarily designed as machines cooled with heat sinks. Such machines are used in grid operation or in converters. [0003] Among them, the converter is mostly a cabinet machine, which is more or less statically away from the motor and is positioned in front of the motor. Very long leads from the converter to the motor are required in many cases. These cases are subject to very high voltage peaks due to reflections in the cable. Such voltage peaks can cause, for example, problems with winding insulation and problems with shaft currents. [0004] Furthermore, it is known from high-voltage electric motors to arrange heat exchangers on the side of the electric motor. As a result, the electric motor can be cooled better. SUMMARY OF THE IN...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K9/18H02K9/19H02K11/00
CPCH02K11/0073H02K9/10H02K9/18H02K11/33B60L1/02B60L3/003B60L3/0061B60L2240/36B60L50/51Y02T10/64Y02T10/70H05K7/20909
Inventor 格哈德·多尔
Owner SIEMENS AG
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