Cooper Crouse-hinds Gmbh

Eaton Protection Systems IP Gmbh & Co. Kg

Ceag Sicherheitstechnik Gmbh

Eaton Intelligent Power Limited

Gerhard Schwarz

Reiner Naumann

Jens Burmeister

Dieter Sauer

Bernd Schwarz

Michael Ketterer

Gerd Hofmann

Helmut Deschner

Theo Grimm

Markus Reinhart

Frank Hieronymus

Gert Hofmann

Udo Becker

Friedhelm Harnischmacher

Rainer Hillebrand

Renate Hoffmann

Heinz Rudolf Liedtke

Rudolf Brandel

Rainer Naumann

Friedheim Harnischmacher

An explosion-protected housing, such as a switchboard, junction box, distribution box, or the like, comprising sidewalls, one back or bottom wall connecting the sidewalls, and a lid or door wall part closing a housing opening. In the housing interior, electronic and/or electric components are arranged, wherein the housing comprises a cooling device. To allow the cooling of a plurality of electronic and/or electric components in the housing interior in a simple way and without higher costs and requiring more space, at least one cooling pipe as a cooling device is provided in at least one wall or a wall part and is closed to the housing interior and flowed through by a cooling fluid.

Explosion-protected housing

The invention relates to a lamp () comprising a lamp housing (), a light source () disposed in the lamp housing (), a reflection device () associated with the light source () for deflection of light emitted by the light source () in the direction of a light outlet opening () of the lamp housing (), and a cooling device () associated with the light source () and/or with the lamp housing (). In particular an inner side () of the lamp housing () is formed at least in some locations as the reflection device () and/or the cooling device () is formed in one piece with the lamp housing ().

Lamp

The invention relates to a lamp () comprising a light source () that can be excited by microwaves to provide illumination and a housing () surrounding the light source, said housing having at least one light exit opening (). The light exit opening () has associated therewith a grille structure () or a labyrinth structure () acting as a microwave shield.

An explosion-proof LED module has at least one light-emitting diode, a heat sink connected to this and an LED cover that covers the LED at least in the emission direction. The LED cover extends into an insertion recess of the heat sink. In this insertion recess, the LED cover is surrounded by a casting compound resulting in sealing of the LED relative to an outer and possibly explosive atmosphere. As a result, an explosion-proof LED module can be provided whereby the manufacture of said explosion-proof LED module is relatively simple and possible in an economic manner in a short time from prefabricated parts. At the same time, the explosion-proof module is furthermore characterized in that sufficient cooling corresponding to the ignition protection type 'intrinsic safety' and an embedding of the component according to ignition protection type 'encapsulation' are given.

Explosion-proof LED module

An explosion-proof luminaire comprises a plurality of light-emitting diodes. These are assigned to a ballast for electrical power supply. A contactless power transmission device is formed between at least a group of LEDs and the ballast. This yields an explosion-proof luminaire which is simplified and improved in terms of structure and light output while permitting many possible arrangements of the LEDs in the corresponding luminaire at the same time.

Explosion-proof lamp

A cooling system () of a light-emitting diode-based light () is proposed, wherein said light comprises a completely closed light fitting () with a flame-proof housing (). In the housing, a cooling body () as part of the cooling system () is arranged. The cooling system () further comprises an electrically operated air circulation means (). By such a cooling system, it is possible to compensate reduction in light flux with minimal additional costs or minimal additional weight or size of the light, wherein the LED light is simultaneously usable in hazardous areas in a wide temperature range.

Cooling system and LED-based light comprising same

A cover, in particular for an explosion-proof luminaire at least comprises a mounting frame, which is detachably fastened to the luminaire, and a transparent luminaire cover held at least along a circumferential edge by the mounting frame. In order to improve a cover of this nature to the effect that it is protected in a cost-effective manner and without substantial constructive effort from the occurrence of microcracks due to the effects of shocks and impacts on the luminaire cover, a transparent protective cover is placed in front of the luminaire cover for a flameproof and impact-resistant embodiment of the cover. The invention also relates to an explosion-proof luminaire with a cover of this nature.

Covering and luminaire having such a covering

The invention relates to a housing () for an electrical operating means such as a light, plug-in device, measuring instrument, switch, distributor, or the like, having at least one first and one second housing part () that can be assembled with one another in an explosion-proof fashion. Each housing part has one joining surface (); when the housing parts are assembled, said joining surfaces are in contact with one another, forming a penetration-proof gap (). In order to provide a novel structure of joining surfaces by means of which a corresponding penetration-proof gap is formed independently of the cross-sectional shape of the housing parts and to be able to substantially unite the advantages of both joining surfaces and the housing mentioned above, the joining surfaces run substantially perpendicular relative to the rest of the housing parts and surface profiles () are formed in said joining surfaces, the penetration-proof gap being formed between said surface profiles.

Housing for electrical operating means

A forcing-off device of an, in particular, explosion-proof or flameproof container for electronic devices, the container including at least one base body having an opening surrounded by an opening edge and a cover part that can be placed onto or inserted into the opening edge. A forcing-off shoulder is formed on the base body or cover part at least in a section in circumferential direction of the container. The forcing-off shoulder is part of a shoulder running around the opening edge, and at least one forcing-off part is rotatably mounted in a lateral recess of the cover part or on the base body in an eccentric fashion between a forcing-off position and a passive position. The forcing-off part is an eccentric disc and in the forcing-off position is in abutment with the forcing-off shoulder for the gap-forming spacing of cover part and base body.

Forcing-off device and container including such a device

A light includes a housing part and a translucent cover connected to the housing part, in a pressure-tight manner, by a screw-on ring. A flame-extinguishing gap is formed between the housing part and the cover. The flame-extinguishing gap is formed directly between a surface of the cover, and a surface of the housing part, and the screw-on ring covers the flame-extinguishing gap at the gap end pointing to the outer side of the light.

Light having a housing part and a cover

An explosion-proof housing includes at least one lower housing part which is provided with a housing wall defining a housing opening that can be closed by an articulated cover. The articulated cover is mounted by an articulation device to be pivotable between an opened and a closed position. In order to allow both a closely adjacent arrangement of housings and the complete utilization of the housing interior, the articulation device includes a lower articulation part arranged in the housing wall, and an upper articulation part arranged on a lower side of the articulated cover which faces the housing opening in a closed position. The lower articulation part and the upper articulation part are pivotably interconnected.

Housing

The invention relates to a lighting fixture () which comprises at least one lighting fixture housing () and a cover () and which is constructed particularly as a safety and/or emergency exit light and/or as an explosion-proof light. A light is held by a clamp connection () at the lighting fixture housing, and at least one auxiliary electrical device () into the light is disposed at the lighting fixture housing. The lighting fixture can be expanded with a lower expense for the installation and with all explosion-protection measures observed, by virtue of the lighting fixture housing () having conductor rails () for supplying electricity to the light and to the auxiliary electrical device, where the auxiliary electrical device is constructed as a plug-in module which can be plugged onto the conductor rails.

Lighting fixture and rail module

A threaded cable gland includes a threaded sleeve, a stop ring arranged externally on the threaded sleeve, a retaining nut screwed onto the threaded sleeve, and a sealing element arranged within the threaded sleeve. A dwell pressure element is disposed between the retaining nut and the sealing element within the threaded sleeve, the dwell pressure element configured to act upon the sealing element.

Threaded cable gland

A plug-in housing module for forming an-explosion-proof switchgear/distribution panel including a number of plug-in points, where when the plug-in housing module is in a plugged-in position at a corresponding plug-in point of the number of plug-in points, the plug-in housing module is brought into contact with electrical connection devices and is detachably fixed to carrier rails of a frame of the switchgear/distribution panel, the plug-in housing module including at least one switching device for switching between a locking position and a release position, and when the at least one switching device is in the release position, the plug-in housing module can be moved out of the plugged-in position into a separation position, where in the separation position, the contact with the electrical connection devices is interrupted, while maintaining a flameproof mechanical connection.

Plug-in housing module

A monitoring device for monitoring at least one fluorescent lamp, particularly in areas at risk of explosion, which fluorescent lamp has a lamp tube with electrodes arranged on the ends thereof in the form of coils, and lamp sockets assigned to said electrodes, is improved for preventing large temperature increases in a corresponding fluorescent lamp, particularly in areas at risk of explosion, by complying with the appropriate explosion safety measure, in that the monitoring device has at least one temperature measuring device assigned to a coil, and one electro-mechanical interruption device with which the energy supply to the fluorescent lamp can be interrupted upon reaching a preset critical temperature value.

Growing community of inventors

Schönbrunn, Germany

Gerhard Schwarz