JPH0447632U

JPH0447632U -

Info

Publication number: JPH0447632U
Application number: JP9044190U
Authority: JP
Priority date: 1990-08-29
Filing date: 1990-08-29
Publication date: 1992-04-22

Description

[Brief explanation of the drawing]

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図は第１図の断面ＢＢを示
す図、第３図は従来の赤外線検出装置を示す断面
図、第４図は第３図の断面ＡＡを示す図である。１はベース、２はレンズユニツト、３は赤外線
検出素子、４はデユワ、５はコールドフインガー
、６はコンプレツサー、７はコネクテイングパイ
プ、９は第１の伝熱ブロツク、９は第２の伝熱ブ
ロツク、１０は第１のホルダー、１１は回路基板
、１２はコネクター、１３は第２のホルダー、１
４は放熱フイン、１５は第３のフアン、１６はケ
ース、１７はハウジング、１８は赤外線透過板、
１９は第３のホルダー、２０は第１のＯリング、
２１は第２のＯリング、２２は第３のＯリング、
２３は第４のＯリング、２４はポツテイング剤、
２８は冷却空気、２９はプレート、３１はベース
の第１のブロツクである。なお、図中同一符号は
同一、または相当部分を示す。 FIG. 1 is a sectional view showing an infrared detection device according to an embodiment of the present invention, FIG. 2 is a view taken along cross section BB of FIG. 1, FIG. 3 is a sectional view showing a conventional infrared detection device, and FIG. 4 3 is a diagram showing cross section AA in FIG. 3. FIG. 1 is a base, 2 is a lens unit, 3 is an infrared detection element, 4 is a dewar, 5 is a cold finger, 6 is a compressor, 7 is a connecting pipe, 9 is a first heat transfer block, 9 is a second transfer Thermal block, 10 is a first holder, 11 is a circuit board, 12 is a connector, 13 is a second holder, 1
4 is a heat radiation fin, 15 is a third fan, 16 is a case, 17 is a housing, 18 is an infrared transmitting plate,
19 is the third holder, 20 is the first O-ring,
21 is the second O-ring, 22 is the third O-ring,
23 is the fourth O-ring, 24 is a potting agent,
28 is cooling air, 29 is a plate, and 31 is the first block of the base. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

A base integrally molded with a block having a semi-cylindrical groove on its upper surface, a plate having a hole that engages at right angles to the base, a lens unit that engages with the plate, and the lens unit. A cylindrical deyuwa arranged on the same axis and containing an infrared detection element, a cylindrical cold finger that engages with the deyuwa and has one end in contact with the infrared detection element, and one end connected to the cold finger. a connecting pipe to be connected; a compressor that is connected to the other end of the connecting pipe and engaged with the base; and a semi-cylindrical groove that is in contact with the other end of the cold finger and engages with the base. a second heat transfer block having a semi-cylindrical groove that contacts the other end of the cold finger and engages with the first heat transfer block; together with the block, a first holder having a semi-cylindrical groove for holding the deyuwa; a circuit board disposed around the deyuwa; a connector for transmitting and receiving signals etc. between the circuit board and the outside; a second holder for holding the connector, a heat dissipation fin that engages with the lower surface of the base, a third fan that blows air to the heat dissipation fin, and a plurality of holes in addition to the holes from which the heat dissipation fin and the third fan protrude. a case having a hole therein; a housing having a hole that engages with the front surface of the case; an infrared transmitting plate disposed on the inner surface of the housing; a third holder holding the infrared transmitting plate; a first O-ring that seals between the transmission plates, a second O-ring that seals between the housing and the case, a third O-ring that seals between the base and the case, and the case and the case. An infrared detection device comprising: a fourth O-ring for sealing between the second holder; and a potting agent for sealing between the connector and the second holder.