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Modules for providing intrinsically safe electrical output power and explosion-proof luminaires

An intrinsically safe, electrical output technology, used in emergency protection circuit devices for limiting overcurrent/overvoltage, safety devices for lighting devices, electric light sources, etc. Simplified effect

Active Publication Date: 2021-09-24
R STAHL SCHALTGERATE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The embodiment of a housing with electrical operating devices or electrical loads, such as light-emitting diodes, in the form of an ignition protection is complex and also makes servicing and maintenance difficult

Method used

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  • Modules for providing intrinsically safe electrical output power and explosion-proof luminaires
  • Modules for providing intrinsically safe electrical output power and explosion-proof luminaires
  • Modules for providing intrinsically safe electrical output power and explosion-proof luminaires

Examples

Experimental program
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Effect test

Embodiment Construction

[0037] exist figure 1 A block diagram of a first embodiment of the module 10 is schematically illustrated in . The module 10 has an input 11 with a first input connection 12 and a second input connection 13 . A current source 14 or a voltage source 15 ( figure 2 ) in the form of non-intrinsically safe energy sources. in accordance with figure 1 In an exemplary embodiment of the present invention, the module 10 is especially configured to be connected to a current source 14 . An input current IE flows into the first input connection 12 , said input current being imparted (einprägen) by way of example via a current source 14 . An input voltage UE is applied between the input connections 12 , 13 , which can be varied at the current source 14 in a load-dependent manner.

[0038] An actuatable safety switch 16 is connected to the first input connection 12 or alternatively to the second input connection 13 . The module 10 has at least one output 17 . The safety switch 16 is ...

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PUM

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Abstract

The invention relates to an explosion-proof lamp (22) or a module (10) of other explosion-proof electrical devices. The module ( 10 ) is designed to convert a non-intrinsically safe input power at an input ( 11 ) into an intrinsically safe output power at a plurality of outputs ( 17 ). A corresponding electrical load, for example a light-emitting diode arrangement consisting of at least one light-emitting diode ( 21 ), can be connected or connected to each output ( 17 ). The output ( 17 ) can be connected in parallel or in series between the first input connection ( 12 ) and the second input connection ( 13 ) of the input ( 11 ). At least one current monitoring device (27) monitors the output current (IA). At least one voltage monitoring device ( 29 ) monitors the output voltage (UA). As soon as the output voltage (UA) exceeds the voltage limit value and / or as soon as the output current (IA) exceeds the current limit value, the safety switch ( 16 ) is switched into its own safe state by means of the control circuit ( 28 ).

Description

technical field [0001] The invention relates to a module for providing an intrinsically safe electrical output power for at least one electrical load, in particular for one or more light-emitting diodes of a luminaire. The invention also relates to an explosion-proof luminaire having such a module. Background technique [0002] As described in the series of standards EN / IEC 60079, in potentially explosive atmospheres, electrical operating devices must be implemented in an explosion-proof manner. For example, luminaires with LEDs of the ignition protection type "increased safety" must be combined with other ignition protection types in order to achieve a predetermined or necessary safety level (eg "EPLGb"). For example, the light-emitting diodes or their operating circuits can be arranged in a housing in the ignition protection type “flameproof encapsulation” (Ex-d) or “encapsulation” (Ex-m). An embodiment with a housing of an electrical operating device or electrical load,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/32H02H3/05F21V25/02H05B45/30H05B45/50H05B45/40H02H3/20H02H3/087H02H9/00H02J1/14F21Y115/10H05B44/00
CPCF21V25/02H02H3/05H02H3/087H02H3/202H02H9/008F21Y2115/10F21V25/12F21Y2103/10H05B45/48H05B45/50H02H3/023
Inventor A.格里斯巴赫J.施特里切尔贝格S.皮普拉克
Owner R STAHL SCHALTGERATE
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