DE102006023870B3 - Mercury-low pressure-amalgam lamp arrangement, has lamp which is enclosed by polytetrafluoroethylene strip in region of amalgam storage, where strip forms mechanical contact to cladding tube - Google Patents

Abstract

The arrangement has an amalgam storage (2) and a cladding tube (4) surrounding a lamp. The lamp has a mechanical contact to the cladding tube in the region of the amalgam storage. The lamp is enclosed in a circular form by a polytetrafluoroethylene (PTFE) strip (3), which lies at the lamp in the region of the amalgam storage. The strip forms the mechanical contact to the cladding tube. A plastic layer is provided for heat transfer from a radiator (1) to the cladding tube. An independent claim is also included for a method for forming an arrangement of a mercury-low pressure-amalgam lamp.

Description

The The invention relates to a high performance mercury low pressure amalgam lamp with an amalgam depot and a cladding tube surrounding the lamp, and a manufacturing method for arranging the lamp in the cladding tube.

In such radiators, as in DE 102 01 617 A1 and WO 96/31902 A1, the radiator and the cladding tube are separated from one another in the discharge region and in particular in the region of the amalgam deposits by a radial air gap.

To WO 96/31902 A1 Bulges of the lamp tube brought into contact with an outer cladding tube become.

To DE 102 01 617 A1 a heating element between radiator and cladding tube can be mounted so that it can also be used for cooling the amalgam deposit.

It The object of the present invention is to provide such high-power radiators with a power density of over 3 W / cm, in particular a power density of more than 5 W / cm, and as possible to make simple arrangements for this.

to solution the task is a plastic layer in the field of amalgam deposits applied or the lamp in the area of the amalgam depot with a enclosed non-metallic band.

Solutions of Task are in the independent claims described. The dependent Claim describes a preferred embodiment.

A device according to the solution Task is an arrangement of a mercury low-pressure amalgam lamp with a Amalgamdepot and a surrounding this lamp cladding tube, being in the range of Amalgamdepots the lamp has a mechanical contact with the cladding tube and according to the invention, the lamp in the area of the amalgam depot from a lamp adjacent to the lamp non-metallic band ring-shaped is enclosed and the non-metallic band mechanical contact to the cladding tube represents.

A further device according to the solution The object is an arrangement of a mercury low-pressure amalgam lamp with an amalgam depot and a cladding tube surrounding this lamp, wherein in the region of Amalgamdepots the lamp has a mechanical contact with the cladding tube and according to the invention, the lamp in the area of the amalgam deposit a plastic layer, in particular a fluoropolymer-containing layer for heat transfer from the radiator having the cladding tube.

A procedural solution of Task is a method for producing an assembly of high performance mercury low pressure amalgam lamps with an amalgam depot and a cladding tube surrounding the lamp, wherein a mechanical contact between the lamp and cladding tube in Amalgam depot area made and used for cooling the amalgam depot is and according to the invention in the field of the amalgam deposit a nonmetallic band annularly around the lamp is put on.

• – wird ein Band um die Lampe gespannt,
• – ist das Band ein Kunststoffband,
• – enthält das Kunststoffband Fluorpolymer,
• – ist der Fluorpolymer Polytetrafluorethylen (PTFE),
• – ist das Band als Klammer ausgebildet,
• – besteht die Klammer aus einem Elastomer, insbesondere Fluorelastomer,
• – sind Lampen mit einer Leistungsdichte von über 3 W/cm, insbesondere über 5 W/cm im Bereich des Amalgamdepots mit einem nichtmetallischen Band umschlossen,
• – übersteigt die Dicke des nichtmetallischen Bandes oder der Kunststoffschicht zur Wärmeübertragung die Toleranzen des Strahlers und des Hüllrohres, damit der Strahler nur über die Bänder oder die Schicht zur Wärmeübertragung mit dem Hüllrohr kontaktiert.
• – ist die Schicht eine Schicht aus Fluorpolymer,
• – ist das Fluorpolymer ein Thermoplast,
• – weist der Thermoplast Äthergruppen auf (PFA) und
• – weist der thermoplastische Fluorpolymer Seitengruppen auf (FEP).

In preferred embodiments

• - a band is stretched around the lamp,
• - the band is a plastic band,
• The plastic strip contains fluoropolymer,
• The fluoropolymer is polytetrafluoroethylene (PTFE),
• - the band is formed as a bracket,
• The clip consists of an elastomer, in particular a fluoroelastomer,
• Lamps having a power density of more than 3 W / cm, in particular more than 5 W / cm, are enclosed in the region of the amalgam deposit with a non-metallic band,
• The thickness of the non-metallic strip or of the heat transfer plastic layer exceeds the tolerances of the radiator and of the cladding tube so that the radiator contacts the cladding tube only via the bands or the layer for heat transfer.
• The layer is a layer of fluoropolymer,
• The fluoropolymer is a thermoplastic,
• - The thermoplastic has ether groups (PFA) and
• - The thermoplastic fluoropolymer side groups on (FEP).

Of the Radiator with the non-metallic band or the plastic layer for heat transfer can loose or tight in the cladding tube rest. For vertically operated spotlights is a fixture of the radiator in the cladding tube advantageous to maintain contact.

following The invention is based on embodiments with reference illustrated on the drawings.

1 shows a spotlight with strapped band in the area of the amalgam depot.

2 shows a thermal bridge between radiator and cladding tube.

In an embodiment according to 1 becomes a spotlight 1 in the area of the amalgam depot 2 with a band 3 made of PTFE, with the PTFE tape 3 after insertion into the cladding tube 4 a mechanical contact with the cladding tube 4 forms. The PTFE tape 3 Can be mounted in the form of a screw clamp around the lamp tube. For mass production, the tightening of a PTFE tape has 3 Proven analogue to packaging technology. For this purpose, the PTFE tape 3 tightened with a tensioning device, superimposed and fastened the superimposed sections together. It has proven useful to attach the superimposed ends with a cuff.

Based on this technique become spotlights 1 with a power density of 3 W / cm and 5 W / cm in an externally water-cooled cladding tube 4 operated. For this purpose, the spotlights 1 in the cladding tube 4 pushed in, on which they ultimately use the PTFE tape 3 rest. Particularly suitable is a cladding tube 4 made of quartz glass. For the spotlight 1 with a power density of 3 W / cm, with a 1.5 mm wide and 0.7 mm thick PTFE tape 3 an optimal operating temperature of the amalgam depot 2 set. For the spotlight 1 with a power density of 5 W / cm, the tape is made with 1 mm thickness. Incidentally, the lamp corresponds to any mercury low-pressure amalgam lamp with an amalgam depot 2 , as can be seen, for example, the cited prior art.

alternative The tape is designed as a clamp that clamps the spotlight. Therefor is a staple of fluoroelastomer.

In a version after 2 is on the spotlight 1 in the area of the amalgam depot 2 a PTFE layer 3 arranged with the radiator 1 in the cladding tube 4 rests. The PTFE layer 3 can be applied with a paste according to the sintering technique.

In a further embodiment according to 2 For example, a thermoplastic layer of fluoropolymer, in particular PFA or FEP, is applied as a melt on the radiator or in the cladding tube or between the radiator and the cladding tube.

Claims (4)

Arrangement of a mercury low-pressure amalgam lamp ( 1 ) with an amalgam depot ( 2 ) and a cladding surrounding this lamp ( 4 ), whereby in the area of the amalgam 2 ) the lamp ( 1 ) a mechanical contact to the cladding tube ( 4 ), characterized in that the lamp ( 1 ) in the area of the amalgam depot ( 2 ) from one to the lamp ( 1 ) adjacent non-metallic band ( 3 ) is enclosed annularly and the non-metallic band ( 3 ) represents the mechanical contact with the cladding tube. Arrangement of a mercury low-pressure amalgam lamp ( 1 ) with an amalgam depot ( 2 ) and a lamp ( 1 ) surrounding cladding tube ( 4 ), whereby in the area of the amalgam 2 ) the lamp ( 1 ) a mechanical contact to the cladding tube ( 4 ), characterized in that the lamp ( 1 ) in the area of the amalgam depot ( 2 ) a plastic layer for heat transfer from the radiator ( 1 ) on the cladding tube ( 4 ) having. Method for producing an assembly of high-performance mercury low-pressure amalgam lamps ( 1 ) with an amalgam depot ( 2 ) and one the lamp ( 1 ) surrounding cladding tube ( 4 ), whereby a mechanical contact between lamp ( 1 ) and cladding tube ( 4 ) in the area of the amalgam depot ( 3 ) and for cooling the amalgam deposit ( 2 ) is used, characterized in that in the field of amalgam ( 2 ) a non-metallic tape ( 3 ) annularly around the lamp ( 1 ) is created. Method according to claim 3, characterized in that the non-metallic strip ( 3 ) around the lamp ( 1 ) is stretched.