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Electrode molybdenum sheet assembly for ultrahigh-voltage point light source and forming method thereof

A molding method and point light source technology, applied in laser welding equipment, welding equipment, metal processing equipment, etc., can solve the problem of poor welding strength, and achieve the effect of ensuring bearing strength, avoiding over-welding or virtual welding, and ensuring linearity.

Inactive Publication Date: 2015-07-22
上海亚尔精密零件制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide an electrode molybdenum sheet assembly for ultra-high voltage point light sources and its forming method in order to overcome the above-mentioned defects in the prior art. On the one hand, it solves the original problem of poor welding strength. The points and positions ensure the welding quality and consistency. On the other hand, it improves and precisely controls the load-bearing strength of the molybdenum sheet, ensures the consistency of assembly, and improves the alignment during the packaging process to achieve precise positioning.

Method used

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  • Electrode molybdenum sheet assembly for ultrahigh-voltage point light source and forming method thereof
  • Electrode molybdenum sheet assembly for ultrahigh-voltage point light source and forming method thereof
  • Electrode molybdenum sheet assembly for ultrahigh-voltage point light source and forming method thereof

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Effect test

Embodiment 1

[0040] An electrode molybdenum sheet assembly for a point light source, its structure is as follows Figure 1-2 As shown, it is composed of emitter electrode 1, sealing molybdenum sheet 2 and lead wire 3, emitter electrode 1 is set at the front end, laser welding spot 4 is set on sealing molybdenum sheet 2, and emitter electrode 1 is welded and connected to laser welding spot 4 The top is connected with the sealing molybdenum sheet 2, and the lead wire 3 is connected to the other end of the sealing molybdenum sheet 2 by means of resistance spot welding, and is arranged coaxially with the emitter electrode 1. In this embodiment, the emitter electrode 1 is composed of a mandrel and a spring welded and sleeved on the front end of the mandrel. The extension at the front end of the mandrel is a bullet-shaped structure. -16mm, spring wire diameter is 0.1-0.4mm. The molybdenum sheet has a width of 1.2-4mm and a thickness of 0.02-0.04mm. The lead-out wire 3 is a molybdenum rod lead-...

Embodiment 2

[0047] An electrode molybdenum sheet assembly for a point light source, consisting of an emitter electrode 1, a sealed molybdenum sheet 2 and a lead wire 3, the connection method is basically the same as that of embodiment 1, the difference is that the emitter electrode 1 has a structure such as image 3 As shown, it consists of a mandrel and a spring welded and sleeved on the front end of the mandrel. The extension at the front end of the mandrel is a round head structure. The structure of the sealed molybdenum sheet 2 is as follows: Figure 4-5 As shown, it is an arc-shaped structure, and the radian is controlled at 1.2-2.8rad. In this embodiment, it is controlled at 2rad. The structure of the lead-out line 3 is as follows Image 6 As shown, the tail is a diamond-shaped structure, and the middle part is a wave-shaped structure. The height of the middle wave-shaped structure is slightly smaller than the inner diameter of the glass tube, and the precision is controlled at 0.05m...

Embodiment 3

[0049] An electrode molybdenum sheet assembly for a point light source, consisting of an emitter electrode 1, a sealed molybdenum sheet and a lead wire 3, the connection method is basically the same as that of embodiment 1, the difference is that the emitter electrode 1 has a structure such as Figure 7 As shown, it is composed of a single mandrel, and the structure of the lead wire 3 is as follows Figure 8 As shown, the tail is a hook-shaped structure, and the middle part is a straight rod structure.

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Abstract

The invention relates to an electrode molybdenum sheet assembly for an ultrahigh-voltage point light source and a forming method thereof. The electrode molybdenum sheet assembly is composed of a sealing-in molybdenum sheet, a transmitting electrode and an outgoing line, wherein the transmitting electrode and the outgoing line are welded to the two ends of the sealing-in molybdenum sheet. The sealing-in molybdenum piece is of an arc structure or a peak-shaped structure, the transmitting electrode is composed of a single core rod or a core rod and a spring connected to the front end of the core rod in a sleeving mode. The outgoing line is a molybdenum rod outgoing line, the tail of the outgoing line is of a diamond or hook-shaped structure, and the middle of the outgoing line is of a straight-rod-shaped or wave-shaped structure. One end of the sealing-in molybdenum sheet is provided with a laser electric welding spot connected with the transmitting electrode in a welding mode. Multi-point laser welding is conducted through a laser outgoing head, the transmitting electrode is connected to one end of the sealing-in molybdenum sheet in a welding mode, and the outgoing line is connected to the sealing-in molybdenum sheet in a welding mode and coaxially arranged with the transmitting electrode through the other end of the sealing-in molybdenum sheet in a resistance spot welding mode. Compared with the prior art, the welding quality and consistency are ensured, the bearing strength of the molybdenum sheet is improved and accurately controlled, straightness in the packaging process can also be improved, and accurate positioning is achieved.

Description

technical field [0001] The invention relates to a component for a point light source and a forming method thereof, in particular to an electrode molybdenum sheet component for an ultra-high voltage point light source and a forming method thereof. Background technique [0002] The ultra-high pressure point light source is a gas discharge lamp filled with mercury and inert gas, and the mercury vapor in the lamp is in an ultra-high pressure state during operation. The ultra-high voltage point light source has a large brightness and is mostly used in liquid crystal projectors and searchlights and other fields. [0003] In the ultra-high voltage point light source, the electrode molybdenum sheet assembly is sealed on both sides of the discharge tube in an airtight manner, and its existing molding technology has the following defects: [0004] In terms of the welding technology between the electrode and the molybdenum sheet, in the existing technology, the welding technology betw...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/22B23K26/70B23K26/346
CPCB23K26/22
Inventor 何健荣盛誉
Owner 上海亚尔精密零件制造有限公司
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