[특허]Gas sensor

City Technology Limited

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특허 상세정보

MyON담기

내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Gas sensor

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01N-027/413
미국특허분류(USC)	204/432; 204/431; 439/271; 439/274; 439/587; 439/588; 439/272
출원번호	US-0566867 (2004-08-12)
등록번호	US-8691066 (2014-04-08)
우선권정보	GB-0319043.6 (2003-08-13)
국제출원번호	PCT/GB2004/003454 (2004-08-12)
§371/§102 date	20060728 (20060728)
국제공개번호	WO2005/017518 (2005-02-24)
발명자 / 주소	Collins, Graham
출원인 / 주소	City Technology Limited
대리인 / 주소	Husch Blackwell LLP
인용정보	피인용 횟수 : 0 인용 특허 : 9

초록
▼

A current collector wire (1) is over-moulded with a seal (2) made from a thermoplastic elastomer (Santoprene 64) having a (64) Shore A hardness rating. In a three electrode carbon monoxide sensor three current collector wire (1a, 1b, 1c) and seal (2a, 2b, 2c) combinations are inserted into the body (3) through receiving apertures (12a, 12b, 12c) in a side wall of the body, so that the current collectors protrude through connection apertures (12a, 12b and 12c). The outside diameters of the seals and the bores of the apertures are dimensioned to provide an interference fit of the one in the other. The seals are pressed home into receiving apertures in the body (3) to provide compression of the seals against both current collectors and the aperture bores resultant from the interference. Gold-plated phosphor bronze clips (8) are attached which locate on and are retained by barbs on the housing, thereby trapping the current collector wires and providing electrical contact to external circuitry.

대표
청구항
▼

1. A current collector and a seal combination for an electrochemical sensor comprising: a housing, a relatively flat reference, sensing, and counter electrodes within the housing, the relatively flat reference, sensing and counter electrodes are stacked vertically and centered about a common vertical axis and in contact with a liquid electrolyte;a plurality of connection apertures arranged in a horizontal row extending along a wall of the housing directly adjacent corresponding edges of the reference, sensing and counter electrodes,the current collector and seal combination further comprising: a plurality of relatively straight, flexible, metal current collectors, each of the plurality of current collectors extending through a respective connection aperture of the plurality of connection apertures to the vertically stacked reference, sensing and counter electrodes with an end of each current collector trapped against and in direct contact with the reference, sensing and counter electrodes;a compliant seal of a thermoplastic elastomeric material over-molded directly onto each of the flexible metal current collectors, the compliant seal is inserted into one of the connection apertures, the current collector extending through the compliant seal;the compliant seal being in contact with the current collector substantially throughout its length along the current collector; andan arrangement being such that compressive stress induced in the compliant seal by reaction from the connection aperture urges the compliant seal into distributed sealing contact with the current collector substantially through a length of the compliant seal. 2. The current collector and seal combination of claim 1, wherein the length of the compliant seal is longer than its outer diameter or other major cross-sectional dimension. 3. The current collector and seal combination of claim 2, wherein a ratio of the length of the compliant seal to the outer diameter is of an order of at least 3:1. 4. The current collector and seal combination of claim 1, claim 2 or claim 3, wherein a ratio of the length and/or the outer diameter of the compliant seal to a diameter of the current collector is at least of an order of 10:1. 5. The current collector and seal combination of claim 1, claim 2, or claim 3, wherein a ratio of the length of the compliant seal to a diameter of the current collector is at least of an order of 30:1. 6. The current collector and seal combination of claim 1, wherein the compliant seal is injection moulded as an over-moulding onto the current collector. 7. The current collector and seal combination of claim 1, wherein the compliant seal is molded with a central through-bore for threading of the current collector through the compliant seal. 8. The current collector and the seal combination of claim 1, wherein the compliant seal is molded with a slot, nick or notch, for introduction of the current collector into the compliant seal. 9. The current collector and seal combination of claim 1, wherein the compliant seal is moulded as two complementary halves having a central groove for receiving the current collector. 10. The current collector and seal combination of claim 1, wherein the compliant seal has one or more ridges extending around its outer circumference. 11. The current collector and seal combination of claim 1, wherein the compliant seal has a cylindrical body and a larger diameter outer end boss. 12. The current collector and seal combination of claim 1, wherein the compliant seal has a tapered nose. 13. An electrochemical gas sensor having: a housing having at least one wall and a plurality of connection apertures arranged in a horizontal row extending along and through the wall, the connection apertures having bores directly adjacent corresponding edges of a relatively flat reference, sensing and counter electrodes,the relatively flat reference, sensing and counter electrodes are stacked vertically and centered about a common vertical axis in the housing,a liquid electrolyte contained in the housing in chemical contact with the electrodes, anda plurality of current collectors in electrical contact with respective ones of the respective electrodes;the plurality of current collectors and respective electrodes are characterized in that:the plurality of current collectors in combination with a corresponding plurality of compliant seals are arranged in accordance with the current collector and seal combination of claim 1;wherein the current collectors extend within the compliant seals through respective ones of the connection apertures from the electrodes to outside the housing; and the compliant seals are in compression against both the current collectors and at least part of the bores of the connection apertures,wherein the current collectors provide means for electrical contact outside the housing and the connection apertures are sealed. 14. The electrochemical sensor of claim 13, wherein the compliant seal is an interference fit in the aperture. 15. The electrochemical sensor of claim 13, wherein the compliant seals have cylindrical bodies and larger diameter outer end bosses and the connection apertures have a complementary shape. 16. The electrochemical sensor of claim 13 including metallic end caps clipped to the housing and captivate the current collectors, thereby providing electrical connections for the electrochemical sensor. 17. An electrochemical gas sensor having: a housing having at least one wall and a plurality of connection apertures arranged in a horizontal row extending along and through the wall, the connection apertures having bores directly adjacent corresponding edges of a relatively flat reference, sensing and counter electrodes,a relatively flat reference, sensing and counter electrodes are stacked vertically and centered about a common axis in the housing,a liquid electrolyte contained in the housing in chemical contact with the electrodes, anda plurality of current collectors in electrical contact with respective ones of the respective electrodes;the plurality of current collectors and respective electrodes are characterized in that:the plurality of current collectors in combination with a corresponding plurality of compliant seals are arranged in accordance with the current collector and seal combination of claim 1,wherein the current collectors extending through respective ones of the connection apertures from the electrodes to outside the housing;the compliant seals are in compression against both the current collectors and at least part of the bores of the connection apertures; whereby the current collectors provide means for electrical contact outside the housing and the connection apertures are sealed;the current collectors are preliminarily located in the connection apertures;the compliant seals are back-fillings of sealing material into the connection apertures; and the back-fillings are compressed by end caps. 18. The electrochemical sensor of claim 17, wherein the end caps are metallic, clipped to the housing, and captivate the current collectors, thereby providing electrical connections for the electrochemical sensor. 19. The electrochemical sensor of claim 13, or claim 17, wherein an elastic moduli of the housing and of the compliant seal differ by at least two orders of magnitude, the housing being stiffer and the compliant seal being more compliant.

이 특허에 인용된 특허 (9)

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구성항목	관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
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특허 상세정보

Gas sensor

초록
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청구항
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이 특허에 인용된 특허 (9)

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IPC 상세정보(version : 201201)

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특허 상세정보

Gas sensor

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이 특허에 인용된 특허 (9)

IPC 상위 출원인

과제정보

상세정보조회

원문조회

IPC 상세정보(version : 201201)

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