Anode structure for short-arc xenon-mercury lamp

Abstract

The invention discloses an anode structure for a short-arc xenon-mercury lamp and belongs to the technical field of xenon-mercury lamps; technical key points of the anode structure are that the anodestructure comprises a cylindrical body which consists of a circular platform part, a heat dissipation part, an auxiliary heat dissipation support part and a support inverted circular platform part that are sequentially arranged from the top to the bottom. The outer diameter of a lower end of the circular platform part is the same as the outer diameter of the heat dissipating part; the outer diameter of the heat dissipating part is smaller than the outer diameter of the auxiliary heat dissipation support part by 0.4-0.8 mm; the ratio of the total height of the circular platform part and the heat dissipation part to the total height of the auxiliary heat dissipation support part and the support inverted circular platform part is 1:1.2-1.4; a number of first annular heat dissipation grooves are evenly distributed on an outer wall of the heat dissipation part in a spaced manner along the axial direction. All of the first annular heat-dissipation grooves are circumferentially arranged alongthe heat dissipation part. The present invention is aim at providing the anode structure for the short-arc xenon-mercury lamp, the anode structure is reasonable in structure, high in strength and reasonable in heat-dissipating effect; the anode structure is used for the mercury-xenon lamp.

Description

technical field [0001] The invention relates to a component of a short-arc mercury-xenon lamp, and more specifically, relates to an anode structure for a short-arc mercury-xenon lamp. Background technique [0002] The anode is the burning point triggered by the high voltage of the short-arc mercury-xenon lamp when it is lit. When the lamp is normally lit and running, the temperature of the anode reaches 2500-3000 °C. At the same time, the anode also needs to withstand the strong current impact from the cathode, so it needs to have a strong bearing strength to avoid changes under high temperature and high pressure, which will affect the service life of the lamp. Due to the extremely high temperature of the anode, in order to ensure its long-term effective work, it is necessary to install a heat dissipation structure on the surface of the anode to increase the cooling effect. However, it was found in the experiment that the change of the fine structure of the anode surface wi...

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Problems solved by technology

However, in the experiment, it was found that the change of the fine structure of the anode surface will seriously affect the heat dissipation effect and the strength of the anode, which will lead to a significant deviation in the life of the lamp.

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