Halogen incandescent lamp mounted without the use of cement

Details Halogen incandescent lamp mounted without the use of cement Halogen incandescent lamp mounted without the use of cement

H - Electricity

01

J

H01J 1/36 (2006.01) H01J 5/60 (2006.01) H01K 1/46 (2006.01)

Patent

CA 2194288

The invention relates to a halogen incandescent lamp in a cementless base, in particular a halogen incandescent lamp for use in a motor vehicle headlight. The lamp according to the invention has a metal holder part 2 with a recess, in which the pinch seal of the lamp bulb 1 is clampingly fixed with the aid of a plurality of support tabs 21a 21b, 22a, 22b, 23a, 23b. In order to reduce the danger of damage to the pinch seal 10 when the lamp is being mounted on its base, the pinch seal 10 is tapered is graduated fashion toward the base, and all the support tabs 21a, 21b, 22a, 22b, 23a, 23b that act upon the pinch seal 10 are oriented toward the broad sides of the pinch seal 10, which is substantially rectangular in cross section, while the narrow sides of the pinch seal 10 are located in the holder part 2 without touching it.

L'invention concerne une lampe à halogène à culot sans mastic, notamment une lampe à halogène destinée à un projecteur automobile. Cette lampe comporte un élément d'appui métallique (2) présentant un évidement dans lequel le joint compressible (10) de l'ampoule (1) est bloqué au moyen de plusieurs colliers d'appui (21a, 21b, 22a, 22b, 23a, 23b). Afin de réduire le risque d'endommagement du joint compressible (10) lors du montage du culot, le joint compressible (10) se rétrécit graduellement en direction du culot et tous les colliers d'appui (21a, 21b, 22a, 22b, 23a, 23b) qui agissent sur le joint compressible (10) sont orientés contre les côtés larges du joint compressible (10), pratiquement rectangulaire en coupe, tandis que les côtés étroits du joint compressible (10) sont disposés sans contact dans l'élément d'appui (2).

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