[특허]Control circuit and a method for electrically connecting a load to a power source

Control circuit and a method for electrically connecting a load to a power source 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H02H-003/08 H02H-009/00 H01H-047/00
출원번호	US-0517546 (2003-08-04)
등록번호	US-7378761 (2008-05-27)
우선권정보	AU-2002950581(2002-08-02)
국제출원번호	PCT/AU03/000983 (2003-08-04)
§371/§102 date	20041210 (20041210)
국제공개번호	WO04/013943 (2004-02-12)
발명자 / 주소	Callen,Wayne Brissenden,Richard Leslie Smith,Robert Keith Henry
출원인 / 주소	Protectelec Pty Ltd
대리인 / 주소	McNees Wallace & Nurick, LLC
인용정보	피인용 횟수 : 0 인용 특허 : 89

초록 ▼

A control circuit (1) includes two input terminals (2, 3) for respectively electrically connecting with the active and neutral conductors (4, 5) of a mains power source (6). Two output terminals (7, 8) electrically connect with a load in the form of a two pin domestic electrical appliance (9). Conductors (4, 5) terminate at a domestic power outlet socket, and terminals (7, 8) are incorporated into a two pin plug for insertion into that socket. That is, terminals (7, 8) include elongate bundled conductors for extending between the outlet socket and the circuit. Appliance (9) has a conductive component, in this instance a housing (10) that, under normal operating conditions, is electrically insulated or otherwise electrically isolated from conductors (4, 5). The housing provides a reference point for circuit (1), and is electrically connected to that circuit by way of a conductor (11).

대표청구항 ▼

The invention claimed is: 1. A control circuit including: at least two input terminals for electrically connecting with at least two conductors of a power source; at least two output terminals for electrically connecting with a load; a sensor having a sensor relay that is energized in response to a reference signal being within a predetermined range, the reference signal being derived from a voltage differential between one or more of the conductors and a floating reference point that is electrically isolated from the conductors when in use, wherein the sensor provides a sensor signal in response to the sensor relay being energized; and a switching device having a switching relay that is responsive to the sensor signal for progressing between a first mode and a second mode wherein: in the first mode the input and output terminals are respectively electrically connected for allowing the load to receive power from the source via the switching relay; and in the second mode, the input and output terminals are electrically disconnected for preventing the source from supplying power to the load via the switching relay. 2. A circuit according to claim 1 wherein the sensor relay is a low voltage DC relay. 3. A circuit according to claim 2 wherein the switching relay is a mains voltage relay. 4. A circuit according to claim 2 wherein the switching relay is a DC voltage relay. 5. A circuit according to claim 1 wherein the sensor signal is: an AC signal; or derived from an AC signal. 6. A control circuit including: at least two input terminals for electrically connecting with a power source; at least two output terminals for electrically connecting with a load; a switching relay having a switching coil that is selectively de-energised and energised to respectively progress the switching relay to a first mode and a second mode wherein: in the first mode the input and output terminals are respectively electrically connected for allowing the load to receive power from the source via the switching relay; and in the second mode, the input and output terminals are electrically disconnected for preventing the source from supplying power to the load via the switching relay; and a sensor relay having only one sensor coil, the sensor coil being progressed to an energized state in response to a fault condition for energizing the switching coil. 7. A circuit according to claim 6 wherein the sensor coil is a low voltage coil that is energised in response to the fault condition. 8. A circuit according to claim 7 wherein the low voltage coil is energised by a DC voltage. 9. A circuit according to claim 8 wherein the low voltage coil is energised by a DC voltage of greater than one Volt. 10. A circuit according to claim 6 wherein the switching relay has only one switching coil. 11. A circuit according to claims 6 wherein by progressing to the energized state, the switching relay de-energizes the sensor coil.

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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연합인증

Control circuit and a method for electrically connecting a load to a power source 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

이 특허에 인용된 특허 (89)

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Control circuit and a method for electrically connecting a load to a power source 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

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이 특허에 인용된 특허 (89)

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