JPH0447631U

JPH0447631U -

Info

Publication number: JPH0447631U
Application number: JP9043690U
Authority: JP
Priority date: 1990-08-29
Filing date: 1990-08-29
Publication date: 1992-04-22

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、１４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、３２はベース
の第２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 heat transfer block, 10 is a first holder,
11 is a circuit board, 12 is a connector, 13 is a second
holder, 14 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 a third holder, 20 is a first O-ring, 21 is a second O-ring. 22 is the third O-ring, 23 is the fourth O-ring, 24 is the potting agent, 28 is the cooling air, 29 is the plate, 31 is the first block of the base, 32 is the second block of the base. be. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims

[Scope of utility model registration request]

a base in which a first block and a second block having a semi-cylindrical groove on the upper surface are integrally molded;
a plate having a hole that engages at right angles to the base; a lens unit that engages with the plate; and a cylindrical dewar that is disposed on the same axis as the lens unit and that incorporates an infrared detection element. , a cylindrical cold finger that engages with the dewar and has one end in contact with the infrared detection element and the other end in contact with the second block of the base; a connecting pipe that connects the cold finger and one end; A heat transfer device having a compressor connected to the other end of the connecting pipe and engaged with the base, and a semi-cylindrical groove in contact with the other end of the cold finger and engaged with the second block of the base. a first holder having a semi-cylindrical groove for holding the dewar with the first block of the base, a circuit board disposed around the deyuwa, signals between the circuit board and the outside, etc. 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 the heat dissipation fin and the third fan. 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; and a third case holding the infrared transmitting plate. a holder, a first O-ring for sealing between the housing and the infrared transmitting plate, and a second O-ring for sealing between the housing and the case.
a third O-ring that seals between the base and the case, a fourth O-ring that seals between the case and the second holder, and a seal between the connector and the second holder. An infrared detection device comprising a potting agent.