Housing of an electric machine having an optimized sealing ring

A casing and casing cover technology, which is applied to the sealing of the engine, the casing/cover/support, electromechanical devices, etc., can solve the problems of cooling loss, drive unit stop operation, interference, etc., to achieve easy processing and prevent escape. Out, optimize the effect of the sealing effect

Pending Publication Date: 2021-11-26
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Slipping of this seal can lead to disturbances and particles in the cooling medium flow, whereby there is a risk of loss of cooling and thus of the drive unit stalling

Method used

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  • Housing of an electric machine having an optimized sealing ring
  • Housing of an electric machine having an optimized sealing ring
  • Housing of an electric machine having an optimized sealing ring

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] figure 1 An electric machine 1 according to an embodiment of the invention is shown schematically. The electric machine 1 comprises a rotor shaft 3 on which the rotor 2 is mounted. The rotor shaft 3 extends along a housing axis 100 of the housing of the electric machine 1 . Furthermore, the electric machine 1 includes a housing element 5 which is designed as a hollow cylinder and carries the stator 4 . The rotor 2 can be driven via the stator 4 so that the rotor shaft 3 can rotate. In particular, the housing axis 100 forms the central axis of the housing element 5 .

[0033] The housing has at least one housing cover 6 which is attached to the end face 7 of the housing element 5 . A gasket 7 is mounted between the housing cover 6 and the housing element 5 . Below, refer to Figure 2 to Figure 7 The interaction of housing element 5 , housing cover 6 and gasket 7 is explained in more detail.

[0034] figure 2 A schematic exploded view of a partial area of ​​the h...

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PUM

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Abstract

The present invention relates to a housing of an electric machine (1), comprising a hollow cylindrical housing element (5), in particular housing jacket, and at least one housing cover (6), which is attached to the end of the housing element (5), a cooling channel (8) being formed in the housing, the housing element (5) having at least two cooling channel sections (8.1) of the cooling channel (8), which each extend from a channel end opening (13) in an end face (11) of the housing element (5) in an axial direction relative to a housing axis (100) into the housing element (5). Two adjacent cooling channel sections (8.1) are flow-connected to each other via a deflection section (8.2) formed in the housing cover (6). There is a sealing gasket (7) for sealing off the cooling channel (8) between the housing element (5) and the housing cover (6), the sealing gasket (7) having through-openings (20) in the region of the channel end openings (13) for directing the cooling channel into the housing cover (6), and the sealing gasket (7) having an annular support (10) and a sealing assembly (9) mounted on the support. The housing is characterized in that the sealing assembly (9) surrounds the support (10) such that the support (10) is completely sealed off from the cooling channel (8) of the housing.

Description

technical field [0001] The invention relates to a casing of a motor. Furthermore, the invention also relates to an electric machine comprising such a housing. In particular, the housing has an optimized sealing ring. Background technique [0002] Stator housings for electric drive units are known from the prior art. Such an electric drive unit is in particular an electric machine for a vehicle. In this case, the stator housing is in particular a cast metal housing which is closed by means of a cover. In order to seal off the coolant flow extending within the cast metal housing and cover, very precise insertion of dimensionally stable seals between the components is required. [0003] Publication WO 2016 / 062440 A3 describes an extruded profile housing having meanderingly running cooling channels in the housing wall. In these extruded profile housings, the cooling medium is deflected via a three-dimensional plastic ring with special webs. Since the plastic rings are made...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K5/20H02K9/19F16J15/06F16J15/10
CPCF16J15/064F16J15/061F16J15/104H02K5/203H02K9/197
Inventor C·A·卡里罗厄斯图皮南S·盖瑟T·H·王
Owner ROBERT BOSCH GMBH
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