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Insulation body for an electrical machine

A technology of insulating body and body, applied in the direction of winding insulation material, shape/style/structure of winding insulation, electric components, etc., can solve problems such as electrical short circuit, large structural complexity, adverse impact of motor production cost, etc., to achieve low manufacturing cost Cost, effect of strong cooling

Pending Publication Date: 2020-05-26
MAHLE INT GMBH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] It proves to be disadvantageous in this case that an effective heat transfer from the stator to the coolant flowing through the individual cooling channels can only be achieved with considerable structural complexity
However, this has an adverse effect on the production cost of the motor
[0006] What also proved problematic in the case of conventional motors is that, in some cases, if the winding insulation of the stator winding is damaged, for example due to damage caused during manufacturing or assembly, between the stator winding and the coolant passing through the cooling channels And undesired electrical short circuits can occur between the stator windings and the stator teeth of the stator and, after the stator windings have been introduced into the gap, come into contact with cooling channels or coolant or the stator teeth, for example due to assembly

Method used

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  • Insulation body for an electrical machine
  • Insulation body for an electrical machine
  • Insulation body for an electrical machine

Examples

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Embodiment Construction

[0064] figure 1 and figure 2 An example of an insulating body 100 according to the invention is shown, which consists of a plastic 11 for a stator of an electric machine. Advantageously, the insulating body 100 is an injection molded part. Additionally, the insulating body 100 may be a unitary body, and alternatively or additionally, an extruded body.

[0065] figure 1 The insulating body 100 is shown in isometric view, and figure 2 The insulating body 100 is shown in cross-section. The insulating body 100 defines a body interior 104 . according to figure 1 , the insulating body 100 has a parallelepiped geometry. The parallelepiped is formed by four outer walls 101 a , 101 b , 101 d made of plastic 11 . The four outer walls 101a-d extend along the axial direction a. In a cross section perpendicular to the axial direction a, as figure 2 As shown in , the outer walls 101a-d form two narrow sides 102a, 102b and two broad sides 103a, 103b. The two narrow sides 102a, ...

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Abstract

The invention relates to an insulation body (100) for an electrical machine (1). The insulation body (100) comprises outer walls (101a, 101b, 101c, 101d) composed of a plastic (K), which delimit a body interior (104). At least one winding zone (106a, 106b) for receiving a stator winding (6) and at least one channel zone (107a, 107b) for receiving a cooling channel (10) are provided in the body interior (104).

Description

technical field [0001] The invention relates to an electric machine, in particular for a motor vehicle, comprising an insulating body. The invention also relates to a motor vehicle comprising such an electric machine. Background technique [0002] This type of motor can usually be an electric motor or a generator. The electric machine can be implemented as an outer rotor or as an inner rotor. [0003] A general type of motor is known, for example, from US 5,214,325. It consists of a housing that surrounds an interior and has a housing extending circumferentially in the circumferential direction of the housing and delimiting the interior radially, on one axial side, the rear side wall axially The interior is bounded, and axially on the other side, the front sidewall axially bounds the interior. The stator of the motor is fixedly connected to the housing. The rotor of the motor is arranged in the stator, wherein the rotor shaft of the rotor is rotatably mounted on the fro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K3/24H02K9/22H02K3/34
CPCH02K3/24H02K3/345H02K9/227H02K9/197H02K3/48H02K3/30
Inventor R·阿尔梅达和席尔瓦B·布兰肯巴赫T·考克斯P·格拉博赫N·库尔T·梅尔P·皮塞克P·瑟维尔J·桑塔格M·威廉姆斯
Owner MAHLE INT GMBH
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