JPH0325120U

JPH0325120U -

Info

Publication number: JPH0325120U
Application number: JP8485689U
Authority: JP
Priority date: 1989-07-19
Filing date: 1989-07-19
Publication date: 1991-03-14

Description

[Brief explanation of drawings]

第１図は本考案の一実施例による赤外線検出装
置を示す断面図、第２図は本考案による第１の放
熱器を示す斜視図、第３図は本考案による第２の
放熱器を示す斜視図、第４図は従来の赤外線検出
装置を示す断面図、第５図は第４図の断面ＢＢを
示す図である。１……レンズユニツト、２……ホルダー、３…
…デユワ、４……コールドフインガー、５……コ
ンプレツサー、６……コネクテイングパイプ、９
……回路基板、１０……第１の放熱器、１１……
ケース、１４……赤外線検出素子、１５……第２
の放熱器、１６……第３のフアンである。なお図
中同一符号は同一、又は相当部分を示す。 Fig. 1 is a sectional view showing an infrared detection device according to an embodiment of the present invention, Fig. 2 is a perspective view showing a first radiator according to the invention, and Fig. 3 is a diagram showing a second radiator according to the invention. A perspective view, FIG. 4 is a sectional view showing a conventional infrared detection device, and FIG. 5 is a view showing cross section BB in FIG. 4. 1...Lens unit, 2...Holder, 3...
...Duwa, 4...Cold finger, 5...Compressor, 6...Connecting pipe, 9
...Circuit board, 10...First heatsink, 11...
Case, 14... Infrared detection element, 15... Second
16 is the third fan. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims

[Scope of utility model registration request]

a lens unit, a holder with which the lens unit is engaged, a cylindrical dewar that engages with the holder and is disposed on the same axis as the lens unit, and has an infrared detection element built therein;
A first heat dissipator having a cylindrical cold finger that engages with the dewar and has one end in contact with the infrared detection element, and a cylindrical groove that engages with the other end of the cold finger, and is integrated with a heat sink. a U-shaped connecting pipe that is internally connected to the cold finger, a compressor that is internally connected to the connecting pipe, and that engages with the bottom surface of the compressor and is integrated with the heat sink. a second heat radiator, a third fan arranged in parallel with the first heat radiator and the second heat radiator, a circuit board arranged in parallel with the dewar, and the first heat radiator. 1. An infrared detection device comprising a case that houses each part except for a heat sink of a heat sink, a heat sink of the second heat radiator, and a third fan.