Electrode assembly

A technology of electrode assembly and discharge end, which is applied in the field of electrode assembly, can solve problems such as temperature increase, weakening arc tube temperature, and affecting lamp performance, so as to ensure the working pressure and increase the temperature of the cold end.
CN101901735AInactive Publication Date: 2010-12-01CHAOZHOU AUBADE LIGHTING
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHAOZHOU AUBADE LIGHTING
Publication Date
2010-12-01
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an electrode assembly structure. The structure comprises a tungsten mandril, a metal ceramic rod and a lead structure which are connected in turn, wherein one end of the tungsten mandril is a discharge end, the other end of the tungsten mandril is connected with one end of the metal ceramic rod, and the other end of the metal ceramic rod is connected with the lead or the metal ceramic rod directly used as the structure of a leading-out wire; and the outer diameter of the tungsten mandril is equivalent to that of the metal ceramic rod. The electrode assembly structure can effectively prevent the excessive conduction of heat to a tail end of the electrode assembly and ensure the excellent performance of a finished lamp in all aspects.
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Description

technical field

[0001] The present invention relates to an electrode assembly. Background technique

[0002] At present, the global ceramic metal halide lamp arc tube manufacturers mainly use the following two electrode structures: the first structure, such as figure 1 As shown, the tungsten core rod 1 with the tungsten spring 4, the molybdenum rod 2 with the molybdenum helix 5 and the niobium rod 3 used as the outer lead are respectively welded together by laser welding, or The niobium rod and the molybdenum rod closely wound with molybdenum helix are connected by electron beam welding, which is a three-stage electrode structure of tungsten-molybdenum-niobium non-equal diameter structure, which is adopted by most electric light source companies in the world; This kind of structure is that a few domestic and foreign companies use cermet rods instead of molybdenum rods as connecting rods or add one end of cermet rods between molybdenum rods and niobium rods. The electrodes ...

Claims

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