Infrared detector Dewar

An infrared detector and Dewar technology, applied in the field of infrared detectors, can solve problems such as coating damage of main cylinder components, achieve simple and convenient installation, reduce the risk of air leakage, and avoid damage

Pending Publication Date: 2022-07-15
ZHEJIANG JUEXIN MICROELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a getter module and an infrared detector Dewar to solve the need to weld the getter fixing part for fixing the getter on the main cylinder part by resistance welding, which causes the main cylinder part The technical problem that the plating layer is destroyed;

Method used

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  • Infrared detector Dewar
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  • Infrared detector Dewar

Examples

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Embodiment approach

[0063] In a further embodiment of the present invention, an infrared detector Dewar is also provided, such as Figure 5 , Image 6 shown, including:

[0064] cold finger part 1;

[0065] The main cylinder part 2, the main cylinder part 2 is arranged above the cold finger part 1;

[0066] The getter module 3, the getter module 3 is welded to the upper part of the main cylinder part 2, and the getter module 3 is the getter module 3 in any one of the embodiments;

[0067] The insulator 4, the insulator 4 is arranged on the main cylinder part 2, and the insulator 4 is connected with the second getter electrode 322 of the getter module 3;

[0068] The lead ring 5, the lead ring 5 is connected to the upper end of the main barrel part 2;

[0069] The window part 6, the window part 6 is arranged above the lead ring 5, and is welded with the lead ring 5;

[0070] The cold finger part 1, the main barrel part 2, the lead ring 5 and the window part 6 are connected to form a vacuum ch...

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Abstract

The invention relates to the technical field of infrared detectors, in particular to an infrared detector Dewar, and a getter module comprises an isolation disc, and at least one getter and at least one supporting sheet corresponding to the getter are arranged on one surface of the isolation disc; each getter is provided with a first getter electrode and a second getter electrode, and the first getter electrode is fixedly connected with the supporting piece. According to the invention, a getter modular structure is designed, the getter is simple and convenient to install, damage to a surface coating of the Dewar shell is avoided, the corrosion resistance of the Dewar shell is improved, the number of parts and weld joints is reduced, the air leakage risk is reduced, and the working time is shortened.

Description

technical field [0001] The invention relates to the technical field of infrared detectors, in particular to an infrared detector Dewar. Background technique [0002] The current usual Dewar manufacturing scheme is as follows: firstly, each component is welded, then a getter for ensuring the Dewar vacuum is welded on the inner wall of the main barrel component, and finally each component is formed into a closed chamber. [0003] In the prior art, to install the getter on the side wall of the main cylinder part of the Dewar, it is necessary to first open a hole in the side wall of the main cylinder along the radial direction of the side wall of the main cylinder, weld two insulators by brazing, and then install the insulator on the inner wall of the main cylinder part. The getter fixing part is set on the upper part for welding the getter. Because the getter needs to be fixedly installed inside the main barrel part, the welding accessibility is poor and the operation is inconv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J5/02
CPCG01J5/0205
Inventor 周勇强熊雄林欢欢毛剑宏
Owner ZHEJIANG JUEXIN MICROELECTRONICS CO LTD
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