Projection television projecting subassembly

A technology for projection components and projection TVs, used in TVs, color TV parts, TV system parts, etc., can solve the problems of uneven sealing surface and reduced sealing reliability, and achieve stable corrosion resistance and reliability. , The effect of improving sealing reliability and superior surface finish

Inactive Publication Date: 2003-04-30
SICHUAN CHANGHONG ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The radiator 3 is usually made of aluminum die-casting, and its surface is an aluminum oxide film formed by anodic oxidation. During the oxidation process, the sealing surface is uneven due to the need for acid-base pretreatment, resulting in reliable sealing. greatly reduced sex

Method used

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  • Projection television projecting subassembly
  • Projection television projecting subassembly
  • Projection television projecting subassembly

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] figure 1 is a sectional view of the cooling chamber part of the projection assembly in the prior art. The projection tube 1 is fixed on the radiator 3 through the seal 2, the C bowl lens 4 is fixed on the radiator 4 through the seal 5, and the cooling cavity formed by the C bowl lens 4, the projection tube 1, and the radiator 3 is filled with cooling water. Liquid 7.

[0015] figure 2 It is a sectional view of the cooling cavity part of the projection assembly of the present invention, including a projection tube 1, a C bowl lens 4 arranged in front of the projection tube front, a radiator 3 arranged between the projection tube 1 and the C bowl lens 4, a radiator 3 and The first sealing member 2 between the projection tube fronts, the second sealing member 5 arranged between the above-mentioned radiator 3 and the C bowl lens 4, the cooling liquid 7 filled between the projection tube 1, the C bowl lens 4 and the radiator 3, A ceramic-like surface 6 formed by plasma s...

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PUM

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Abstract

A projective assembly for projection TV consists of a projective tube, a C-bowl lens, a raidator, a first sealing element set between the radiator and the projective tube, a second sealing element set between the C-bowl lens and the radiator, a third sealing element set between the radiator and the load package pressing sheet. The radiator has a surface of ceramic-like one which is formed by electrochemical processing with plasma reinforcement and has an excellent degree of finish to raised a great deal of the sealing reliability for the cooling carvity, and meawhile the inner surface of radiator contacts with cooling liquid directly with the ceramic-like surface of this inner surface having a firm and reliable capability for guarding against the corrosion of cooling liquid and resistanceto high heat radiation and high heat conduction.

Description

technical field [0001] The invention relates to a projection TV projection assembly, and more specifically relates to a sealing structure of a cooling chamber formed by a projection assembly C bowl lens, a projection tube, and a radiator. Background technique [0002] In order to improve the image contrast and the life of the projection tube, a transparent cooling liquid is sealed between the projection tube and the C bowl, and the liquid needs to be reliably sealed in the cooling cavity formed by the C bowl lens, the projection tube, and the radiator. figure 1 Shown is a typical sealing structure of the existing projection assembly, the projection tube 1 is fixed on the radiator 3 through the seal 2, the C bowl lens 4 is fixed on the radiator 3 through the seal 5, and the C bowl lens 4, the projection tube 1 1. The middle of the cooling cavity formed by the radiator 3 is filled with cooling liquid 7 . The radiator 3 is usually made of aluminum die...

Claims

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Application Information

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IPC IPC(8): G02B7/00H04N5/74
Inventor 龚乐生
Owner SICHUAN CHANGHONG ELECTRIC CO LTD
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