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Shell Provided With Protection Device Used For Wet Seal Device

A technology for wet sealing and protection devices, applied in the field of wet sealing devices to prevent components from being affected by moisture and pollution, to achieve the effect of avoiding long-term retention

Active Publication Date: 2014-08-06
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This can lead to penetration of the wet seal so that liquid can enter the interior of the housing

Method used

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  • Shell Provided With Protection Device Used For Wet Seal Device
  • Shell Provided With Protection Device Used For Wet Seal Device
  • Shell Provided With Protection Device Used For Wet Seal Device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] figure 1 The drive module 1 is shown with a housing 2 in which an electric motor 3 and a printed circuit board 4 are arranged. The circuit board 4 contains control electronics to operate the electric motor 3 . The circuit board 4 receives control signals and electrical energy for running the electric motor 3 via suitable connectors (not shown).

[0025] The housing 2 is composed of a first housing part 21 and a second housing part 22 . Obviously, the housing 2 can also have more than two housing parts.

[0026] In order to protect the components inserted into the housing 2 , namely the electric motor 3 and the circuit board 4 in the described embodiment, from dirt and liquids entering from the outside, the housing 2 is passed through a housing part 21 , The combination of 22 is closed. A wet seal 5 is provided to prevent the ingress of dirt and liquids in the connecting region where the housing parts 21 , 22 are nestled one above the other.

[0027] The wet seal 5 ...

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PUM

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Abstract

The housing has a wet seal (5) provided in a peripheral part in a binding region formed by assembling housing parts (21, 22). A protection device i.e. skirt (8), outwardly extends along the wet seal at a distance from an end of the wet seal so that a region between the housing and the protective device is conductive. The protection device is carried by one of the housing parts by spacers (9). The protection device covers the wet seal in a transverse direction with an extension direction. The binding region is provided with an outwardly opened recess. An independent claim is also included for a drive module.

Description

technical field [0001] The invention relates to a housing for a drive module, in particular to measures for protecting components located in the housing against moisture and contamination. The invention also relates to the protection of a wet seal sealing the housing against external influences. Background technique [0002] Electric motors are often used in harsh ambient conditions and are therefore arranged in a housing in order to prevent contamination of the motor interior. Furthermore, circuit boards with control circuits are more and more frequently arranged in the vicinity of the electric motors for controlling and operating the electric motors. Furthermore, circuit boards of this type must be protected against moisture and liquids, so housings, which for assembly reasons consist of two housing parts nestled one on top of the other, are often sealed by means of wet seals. [0003] Such wet seals usually contain a silicone-containing material in paste state as sealin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K5/10H05K5/06
CPCH02K5/10
Inventor T·洛特B·施彭格勒C·迈尔S·汉森H·迈尔
Owner ROBERT BOSCH GMBH