EP1325510B1 - Lampe für explosionsgeschützte leuchte - Google Patents

Lampe für explosionsgeschützte leuchte Download PDF

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Publication number
EP1325510B1
EP1325510B1 EP01965150.4A EP01965150A EP1325510B1 EP 1325510 B1 EP1325510 B1 EP 1325510B1 EP 01965150 A EP01965150 A EP 01965150A EP 1325510 B1 EP1325510 B1 EP 1325510B1
Authority
EP
European Patent Office
Prior art keywords
lamp
jacket
pressure
temperature
socket
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP01965150.4A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1325510A1 (de
Inventor
Gerhard Schwarz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eaton Protection Systems IP GmbH and Co KG
Original Assignee
Eaton Protection Systems IP GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eaton Protection Systems IP GmbH and Co KG filed Critical Eaton Protection Systems IP GmbH and Co KG
Publication of EP1325510A1 publication Critical patent/EP1325510A1/de
Application granted granted Critical
Publication of EP1325510B1 publication Critical patent/EP1325510B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/50—Auxiliary parts or solid material within the envelope for reducing risk of explosion upon breakage of the envelope, e.g. for use in mines
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers
    • H01J61/34—Double-wall vessels or containers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/56—One or more circuit elements structurally associated with the lamp

Definitions

  • the invention relates to a lamp for use in explosion-proof lights with at least one encased in an envelope bulb inner lamp and an electrically connected with this lamp holder, wherein a formed between enveloping bulb and interior lamp insulating space is at least partially evacuated.
  • Such a lamp is out of the DE 32 365 29 known.
  • temperature and pressure inside the lamp must be sufficiently high to generate light.
  • the enveloping bulb is provided around the inner lamp and the insulating space formed between them is at least partially evacuated.
  • a luminaire equipped with the lamp described above can be used in potentially explosive areas in which, for example, flammable gases, vapors or mist are present, which could be ignited by the temperature of the interior lamp.
  • the invention has for its object to improve a lamp for explosion-proof lights of the type mentioned in that at a collapse of the vacuum in the insulating space reliably and quickly lowered the temperature of the lamp and in particular the interior lamp and an explosion is prevented.
  • the insulating space is associated with at least one pressure and / or temperature sensor, which with a breaker circuit for interrupting the power supply of the lamp upon detection of a pressure or a temperature greater than a each predetermined maximum value is connected.
  • the pressure or temperature sensor By the pressure or temperature sensor, a collapse of the vacuum or an associated increase in temperature in the insulating space is detected quickly and reliably. As soon as the corresponding pressure or the corresponding temperature is greater than a maximum value for pressure and temperature specified for the hazardous area, the voltage supply of the luminaire is interrupted by a corresponding breaker circuit. This means that not only is the temperature of the luminaire lowered, but at the same time the luminaire is also de-energized. As a result, an explosion in the area is reliably prevented and as proposed in the prior art destruction of the interior lamp is in any way necessary.
  • the pressure sensor can be arranged inside the enveloping piston.
  • the arrangement is preferably carried out at such a location that does not hinder a light emission from the lamp for the intended lighting purposes.
  • the temperature sensor can be provided.
  • the temperature measurement can be provided either inside or directly outside the enveloping piston, whereby the corresponding temperature sensor can be arranged inside and / or outside of the enveloping piston.
  • the same restriction applies to the arrangement of the temperature sensor as for the pressure sensor, that is, a light leakage should be hindered as little as possible.
  • the breaker circuit can be arranged in the lamp socket. In this case, the interruption of the power supply of the lamp is made by the lamp itself and corresponding external circuits are not necessary.
  • these can be connected to the breaker circuit via corresponding connecting wires.
  • the breaker circuit simultaneously evaluates the signals.
  • the circuit breaker can be arranged externally and, if necessary, centrally for a number of luminaires.
  • a pressure and / or temperature measurement value from the corresponding sensor via the supply lines of the lamp to the breaker circuit can be transmitted.
  • the corresponding measured values can be modulated onto the supply voltage and transmitted to the interrupter circuit, where they are demodulated and evaluated. Other facilities for transmitting the measured values are possible.
  • the interior lamp can be melted in the envelope and connecting wires of the interior lamp can be passed through the envelope bulb in the direction of the lamp socket.
  • the outer bulb may have an open towards the lamp socket end opening, which is closed in the lamp holder.
  • the interior lamp can be used and then the closing of the enveloping bulb in the lamp socket takes place.
  • the corresponding connection wires of the interior lamp can be led out of the enveloping bulb through the end opening in the direction of the lamp socket.
  • pressure sensor and / or temperature sensor can be arranged in or near the lamp socket. It is also possible that the corresponding sensor is part of the circuit breaker or both are integrated in a circuit.
  • the sensor or the corresponding circuit can be arranged, for example, on a top side of the casting resin used for casting the enveloping piston, which side faces the insulating space.
  • the interior lamp may be, for example, a discharge lamp such as a halogen lamp, a high pressure sodium vapor lamp, a high pressure mercury vapor lamp or the like.
  • the shape of the enveloping bulb can be optimized with respect to the light output, the temperature distribution or the like, in particular spherical or paraboloidal enveloping pistons, see DE 36 114 84 , possible are.
  • Fig. 1 an embodiment of a lamp 1 according to the invention for explosion-proof lights in a simplified representation and partially shown in longitudinal section.
  • the lamp 1 has an interior lamp 3. This is, for example, a discharge lamp such as a halogen lamp, high pressure sodium vapor lamp, high pressure mercury vapor lamp or the like.
  • the interior lamp 3 can be arranged with its socket 13 in the lamp 1.
  • connecting wires 9, 10 are guided to a lamp socket 4 of the lamp 1.
  • the connecting wire 9 connects the approximately cylindrical outer walls of the sockets 13,4 and the connecting wire 10 uses corresponding contact lugs 14, 15 of the respective sockets, which are electrically insulated from the cylindrical outer walls of these sockets.
  • the interior lamp 3 is encapsulated in an outer envelope 2. This has an end opening 11 which points in the direction of the socket 4 and in this by a corresponding material, such as casting resin 12, is closed. Through the end opening 11, the socket 13 of the interior lamp 3 and the connecting wires 9, 10 led out of the socket 2 in the version 4.
  • the enveloping piston 2 can be closed on all sides, corresponding connecting wires 9, 10 being guided through the enveloping piston. Also in this case, the enveloping bulb 2 may be closed in the lamp holder 4.
  • a pressure sensor 6 is arranged on an inner side of the enveloping piston 2. Its arrangement is in particular such that a light emission of the lamp 1 is as unobstructed as possible.
  • the pressure sensor 6 can also be arranged, for example, in the interior of the holder 4 or on a surface of the casting resin 12.
  • a temperature sensor 7 arranged. This can be arranged both in the interior of the enveloping bulb 2, in the region of the lamp holder 4 or on an outer side of the enveloping bulb 2.
  • Fig. 1 is shown in particular as the pressure sensor 6 is connected via a corresponding connecting line 16 with an arranged in the lamp holder 4 breaker circuit 8.
  • This interrupter circuit switches off the lamp 1 when a value greater than a predefinable maximum value for pressure or temperature is measured by one of the sensors 6, 7.
  • a simple embodiment of such a breaker circuit is an electrically triggerable switch which interrupts, for example, the lead wire 10 in the presence of an excessively high pressure or temperature value.
  • pressure sensor 6 different sensors are possible, which are both small enough for installation in the inventive lamp 1 as well as fast enough to respond to a corresponding pressure increase in the insulating space 5.
  • pressure sensors are piezoresistive or capacitive, micromechanical pressure sensors and the like.
  • the temperature sensor may be formed as a thermocouple, resistance thermometer or the like.
  • the breaker circuit 8 is arranged outside the lamp 1.
  • a breaker circuit can be used for a plurality of lamps or lights, these lights or lights are either total or selectively off.
  • the lamp according to the invention ensures that an explosive atmosphere surrounding it can not be ignited.

Landscapes

  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Resistance Heating (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Eye Examination Apparatus (AREA)
EP01965150.4A 2000-10-10 2001-07-30 Lampe für explosionsgeschützte leuchte Expired - Lifetime EP1325510B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE20017372U DE20017372U1 (de) 2000-10-10 2000-10-10 Lampe für explosionsgeschützte Leuchte
DE20017372U 2000-10-10
PCT/EP2001/008797 WO2002031860A1 (de) 2000-10-10 2001-07-30 Lampe für explosionsgeschützte leuchte

Publications (2)

Publication Number Publication Date
EP1325510A1 EP1325510A1 (de) 2003-07-09
EP1325510B1 true EP1325510B1 (de) 2018-04-04

Family

ID=7947472

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01965150.4A Expired - Lifetime EP1325510B1 (de) 2000-10-10 2001-07-30 Lampe für explosionsgeschützte leuchte

Country Status (4)

Country Link
EP (1) EP1325510B1 (no)
DE (1) DE20017372U1 (no)
NO (1) NO328213B1 (no)
WO (1) WO2002031860A1 (no)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110360502A (zh) * 2019-06-21 2019-10-22 深圳市富高康电子有限公司 防爆灯具

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006054784A1 (de) * 2006-11-21 2008-05-29 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Elektrische Lampe mit einem Lampenkolben
CN103542297A (zh) * 2013-10-24 2014-01-29 徐春荣 防爆灯具

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3117592A1 (de) * 1981-05-04 1983-01-20 Heinz Dr. 8000 München Busch Sicherheitsleuchte

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE223891C (no) *
AT122241B (de) * 1929-05-06 1931-04-10 Siemens Ag Schlagwettersichere Glühlampe.
DE695746C (de) * 1938-06-26 1940-08-31 Concordia Elek Zitaets Akt Ges Gluehlampe mit automatischer Stromunterbrechung, insbesondere fuer Grubenlampen
US4156830A (en) * 1975-05-13 1979-05-29 Duro-Test Corp. High intensity discharge lamp with integral means for arc extinguishing
US4752718A (en) * 1975-05-13 1988-06-21 Duro-Test Corporation High intensity discharge lamp with integral means for arc extinguishing
DE2919204A1 (de) * 1979-05-12 1980-11-27 Sovilla Brulhart Heinz Gluehfadenlampe
DE3244570C2 (de) * 1982-12-02 1987-02-12 Ceag Licht- Und Stromversorgungstechnik Gmbh, 4770 Soest Anordnung zur elektronischen Absicherung batteriebetriebener tragbarer Leuchten
HU192240B (en) * 1984-07-03 1987-05-28 Philips Nv Explosion-proof incandescent lamp
AU2868289A (en) * 1988-01-28 1989-08-03 Abb Ceag Licht-Und Stromversorgungstechnik Gmbh Explosion proof discharge lamp
DE9101460U1 (de) * 1991-02-08 1991-05-02 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München Einseitig gesockelte elektrische Lampe
DE4323003A1 (de) * 1993-07-09 1995-01-19 Poellet Wilfried Sensorgesteuerte Abschaltung für Strahlerleuchte mit Halogenlampe
DE19623605A1 (de) * 1996-06-13 1997-01-02 Zoltan Koeves Explosionsgeschützte Leuchte

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3117592A1 (de) * 1981-05-04 1983-01-20 Heinz Dr. 8000 München Busch Sicherheitsleuchte

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110360502A (zh) * 2019-06-21 2019-10-22 深圳市富高康电子有限公司 防爆灯具

Also Published As

Publication number Publication date
NO20031613L (no) 2003-04-09
NO328213B1 (no) 2010-01-11
EP1325510A1 (de) 2003-07-09
DE20017372U1 (de) 2002-02-21
NO20031613D0 (no) 2003-04-09
WO2002031860A1 (de) 2002-04-18

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