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Electronic devices and their protective elements for use in areas at risk of explosion

A technology for electronic devices and protection components, which is applied in the direction of electrical components, circuit devices, overvoltage protection resistors, etc., and can solve problems such as large space requirements

Active Publication Date: 2015-10-21
EHNDRESS KHAUZER GMBKH KO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Due to the explosion protection resistor R Ex , especially in the case of devices with many subassemblies 3 , this leads to considerable space requirements and conflicts with miniaturization and cost optimization

Method used

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  • Electronic devices and their protective elements for use in areas at risk of explosion
  • Electronic devices and their protective elements for use in areas at risk of explosion
  • Electronic devices and their protective elements for use in areas at risk of explosion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] figure 2 A block diagram of an electronic device for use in an area at risk of explosion is shown. It comprises a single upper-level electronic unit 1 to which a plurality of lower-level electronic components 3 are connected. Each component 3 is connected to a superordinate unit 1 via a connection line 5 and is supplied with energy by the superordinate unit 1 .

[0038] According to the invention, the protective element 7 is provided to be plugged into a plurality of connection lines 5 connecting the respective component 3 with the superordinated unit 1 . In the illustrated example of embodiment, all components 3 are connected to the superordinated unit 1 via the protective element 7 shown. As an alternative, however, it is also possible in each case to connect a number of component groups to the superordinated unit 1 by means of individual protective elements inserted in the connecting lines of all components of the respective group.

[0039] image 3 A first vari...

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PUM

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Abstract

An electronic device for use in explosion endangered areas, comprising a superordinated electronic unit, a plurality of electronic components connected to the superordinated unit and supplied with energy by the superordinated unit, and a protective element installed in a number of connection lines for connecting respective ones of the components to the superordinated unit. In the case of a malfunctioning of one of the components, a space saving, safe conversion of the power available via the superordinated unit into heat occurs. The protective element comprises an electrically insulating, heat conductive, base body, and a number of resistors applied on the base body and corresponding to the number of connection lines, wherein each of the resistors is provided an input and output side with a connection, via which it is connected to a respective one of the connection lines.

Description

technical field [0001] The invention relates to an electronic device for use in areas at risk of explosion. The electronic device has a superordinate electronic unit and a plurality of electronic components connected to and powered by the superordinate unit. The invention also relates to a protective element by means of which, in the event of a component failure, the power supplied by the superordinated unit can be safely converted into heat. Background technique [0002] A large number of electronic devices are used in industrial measuring technology, especially measuring devices such as pressure, temperature, flow or level measuring devices. These devices usually have an energy-supplied superordinated electronics unit, to which a number of electronic components via which energy is supplied are connected, eg electronic components such as sensors, measuring circuits, control circuits and / or evaluation circuits or signal processors. [0003] Strict safety regulations are ad...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02H9/00
CPCH05K7/2039H01C1/14H01C7/12H01L23/62H01L2924/0002H05K9/00H01L2924/00
Inventor 温弗里德·迈尔罗兰·格罗青格
Owner EHNDRESS KHAUZER GMBKH KO KG