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Dewar assembly, infrared detector and assembling method of Dewar assembly

An assembly method and component technology, applied in the field of infrared detectors, to achieve the effect of ensuring reliability, simple process, and low thermal conductivity

Inactive Publication Date: 2020-03-17
11TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is how to effectively improve the firmness and reliability of the cold screen fixing. The present invention proposes an assembly method of a Dewar assembly, an infrared detector and a Dewar assembly

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  • Dewar assembly, infrared detector and assembling method of Dewar assembly
  • Dewar assembly, infrared detector and assembling method of Dewar assembly
  • Dewar assembly, infrared detector and assembling method of Dewar assembly

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Embodiment Construction

[0033] In order to further explain the technical means and functions adopted by the present invention to achieve the intended purpose, the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0034] like Figure 1-Figure 3 As shown, the Dewar assembly 10 according to the embodiment of the present invention includes: a cold screen 110 , a frame 120 and a fixture 130 .

[0035] Specifically, as figure 2 and image 3 As shown, the cold shield 110 has a first connection portion 111 , the frame 120 has a second connection portion 121 , and the first connection portion 111 is bonded to the second connection portion 121 . Thus, the cold screen 110 and the frame 120 can be adhesively connected through the first connection part 111 and the second connection part 121 .

[0036] combine Figure 2-Figure 4 As shown, the clip 130 has a first fitting portion 131 and a second fitting portion 132, the first fitting...

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Abstract

The invention provides a Dewar assembly, an infrared detector and an assembling method of the Dewar assembly. The Dewar assembly comprises a cold shield, a frame and a fixture, wherein the cold shieldhas a first connecting part, the frame has a second connecting part, and the first connecting part is bonded with the second connecting part; the fixture has a first matching part and a second matching part; the first matching part is located on one side, away from the second connecting part, of the first connecting part; and the second matching part is located on one side, away from the first connecting part, of the second connecting part. According to the Dewar assembly, the vibration and impact load resistance of the cold shield can be enhanced, the problem that the cold shield falls off after an existing detector assembly is subjected to high-magnitude vibration and impact experiments is solved, and the operating reliability of the cold shield is ensured; moreover, the fixture has theadvantages of light weight, small size and low heat conductivity, and the mass and refrigeration load of the Dewar assembly basically is not additionally increased.

Description

technical field [0001] The invention relates to the technical field of infrared detectors, in particular to a Dewar assembly, an infrared detector and an assembly method of the Dewar assembly. Background technique [0002] Infrared detector technology has the characteristics of passive detection, high detection accuracy and strong environmental adaptability, and is widely used in early warning detection, intelligence reconnaissance, precision strike, night vision, astronomical observation and other fields. In order to meet the application requirements of large field of view, high spatial resolution, and miniaturized infrared imaging systems, large area array, miniaturized, and high-reliability detector components have become the focus of research in recent years. The cold screen is an important thin-walled part in the infrared detector Dewar assembly. It is usually bonded to the frame to limit the field of view of the detector and eliminate stray radiation. [0003] In the ...

Claims

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Application Information

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IPC IPC(8): G01J5/02B23P21/00
CPCB23P21/00G01J5/0205
Inventor 张磊张懿闫杰孙浩
Owner 11TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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