Pressure relief device and housing comprising same

A technology of pressure relief device and housing, which is applied in substation/power distribution device housing, electrical equipment housing/cabinet/drawer, electrical components, etc. It can solve the problems of diaphragm removal, damage, diaphragm tearing, etc.

Pending Publication Date: 2021-04-23
R STAHL SCHALTGERATE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Inadvertent removal of the diaphragm from the pressure relief device may therefore also occur
In addition, the diaphragm can be torn or damaged due to actions from the outside, e.g. when objects are pressed against it

Method used

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  • Pressure relief device and housing comprising same
  • Pressure relief device and housing comprising same
  • Pressure relief device and housing comprising same

Examples

Experimental program
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Embodiment Construction

[0028] exist figure 1 3D shows a housing 10 in partially cutaway form, which encloses an interior space 11, in which the symbolically shown components 12, 13 can be installed there, said components being in operation, for example due to Heat generation, spark formation, radiation or other influences may act as a source of ignition. The housing 10 separates these ignition sources 12 , 13 from the surroundings 14 in order to prevent a flame or explosion occurring in the interior 11 from propagating into the surroundings 14 . The housing 10 is preferably a housing of the “pressure-resistant encapsulation” type of protection (ex-d). However, in order to achieve a rapid pressure equalization and therefore a rapid reduction of the excess pressure generated in the housing 10, especially in the event of an explosion in the interior 11, a pressure relief device 15 is provided, which in the figure 1 Neutrons are exemplarily shown mounted at the sides of the housing 10 . However, the ...

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PUM

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Abstract

A pressure relief device according to the invention comprises a gas-permeable body (17) to which a membrane adheres that is preferably impermeable to moisture. The membrane can be a rubber membrane that is formed e.g. by applying liquid rubber to the pressure relief body (17) and, optionally, a component which supports the liquid rubber and surrounds the pressure relief body (17).

Description

technical field [0001] The invention relates to a pressure relief device and a housing with such a pressure relief device. In particular, the invention relates to an explosion-proof enclosure of the "pressure-resistant encapsulation" type of protection, known as protection type ex-d. Background technique [0002] Housings of the pressure-resistant encapsulation type often have so-called pressure relief devices, by means of which the excess pressure generated in the housing can be released to the outside. Such pressure relief devices typically have a porous body which, while gas permeable, prevents the breakdown of flames or hot particles due to the narrowness and length of the pores extending through the body. [0003] A pressure relief device is known from DE 10 2010 016 782 A1 with such a porous body having a first side pointing toward the housing interior and a second side facing the surroundings. The pressure relief device also has a membrane which is arranged between ...

Claims

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Application Information

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IPC IPC(8): A62C4/00
CPCA62C4/00H02B13/025H02B1/28H05K5/0213Y10T137/1714Y10T137/1632Y10T137/1692F16K13/06F16K17/40
Inventor T·阿恩霍尔德
Owner R STAHL SCHALTGERATE
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