Bracket structure of compact high pressure sodium lamp

Abstract

A bracket structure for a compact high-pressure sodium lamp, including main and auxiliary brackets inside the bulb, the lower ends of the main bracket and the auxiliary bracket are connected to the lamp cap, the upper end of the main bracket is bent, and the upper end is tightly fitted with the inner wall of the bulb. The upper end is connected to the main bracket, and the upper nickel strip welds the niobium tube on the arc tube and the main bracket into a flexible and connected whole; The niobium tube and sub-support are welded into a whole with flexible connection. The volume of the high-pressure sodium lamp with this bracket is greatly reduced and miniaturized, and it can withstand the high temperature when the light bulb is working. In addition to choosing good temperature-resistant materials molybdenum rod, molybdenum wire, and quartz glass, the good welding performance between nickel strips, niobium tubes, and molybdenum rods is also fully utilized to ensure the reliability of bulb welding and avoid excessive temperature differences between cold and hot due to inconsistent expansion coefficients of various parts. Large lead to desoldering of the welding part or explosion of the tube, causing early failure of the bulb and quality problems. The scope of use of the lamp is expanded, and the working reliability is improved.

Description

technical field [0001] The invention relates to the main parts of a high-pressure sodium lamp, especially the support structure of a compact high-pressure sodium lamp with power below 200W, small size and single-end use. Background technique [0002] In some special lighting applications of high-intensity gas discharge lamps, such as spotlights, spotlights, garden lights, etc., and in the required local lighting places, in order to cooperate well with lamps and reflectors, it is necessary to use light bulbs, relatively standard As far as the light bulb is concerned, its diameter and length will be greatly reduced for miniaturization. For example, for a 150W high-efficiency sodium lamp, the standard bulb has a diameter of 46 mm and a length of 210 mm, while a compact bulb has a diameter of less than 25 mm and a length of less than 140 mm. [0003] Under the premise of a certain type and power of the bulb, the heat generated by the bulb is basically unchanged. Now it is requi...

AI Technical Summary

Problems solved by technology

[0004] Patent Application No. 201110384088.8 "A High Luminous Efficiency Sodium Lamp with Integral Bracket" only discloses a large and small bracket as an integral bracket, thereby reducing welding points and increasing the reliability of work, but it also needs to be equipped with elastic Connect brackets to reduce tube explosion

Images