MX9303625A - Fusible de elemento doble. - Google Patents

Fusible de elemento doble.

Info

Publication number
MX9303625A
MX9303625A MX9303625A MX9303625A MX9303625A MX 9303625 A MX9303625 A MX 9303625A MX 9303625 A MX9303625 A MX 9303625A MX 9303625 A MX9303625 A MX 9303625A MX 9303625 A MX9303625 A MX 9303625A
Authority
MX
Mexico
Prior art keywords
spring
turns
housing
spiral
rest
Prior art date
Application number
MX9303625A
Other languages
English (en)
Inventor
Brian A Young
Tony Biasutti
Peter Morgan
Mary A Ruggiero
Original Assignee
Nor Am Electical Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nor Am Electical Ltd filed Critical Nor Am Electical Ltd
Publication of MX9303625A publication Critical patent/MX9303625A/es

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/36—Means for applying mechanical tension to fusible member
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
    • H01H85/05—Component parts thereof
    • H01H85/055—Fusible members
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/12—Shape memory
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H2085/0004—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive making use of shape-memory material

Landscapes

  • Fuses (AREA)

Abstract

Se da a conocer un dispositivo de interrupción eléctrica en el cual un resorte en espiral, efectivamente en espacio, activa la interrupción de corriente. El resorte se caracteriza por vueltas en espiral, las cuales se enrollan continuamente alrededor y en acercamiento a un eje central, y las vueltas sucesivas tienen readios reducidos para pasar axialmente a través del centro de una vuelta adyacente hacia el exterior. El resorte puede además asumir una condición plana y las vueltas endel resorte se colocan en forma plana interpuestas, en forma empacada, entre vueltas adyacentes. Ventajosamente el resorte en espiral tiene la configuración cónica y se tensa en una configuración cargada inversamente, en que las vueltas de un extremo del resorte son tiradas axialmente al interior, a través de, y pasando las, vueltas del otro extremo. Preferiblemente, el resorte cónico cargado inversamente forma parte de un dispositivo sensible térmicamente el cual incluye un alojamiento, que tiene dispuesto en su interior un émbolo, el cual está en una relación orientada con el resorte. El émbolo se extiende más allá del alojamiento para suministrar la comunicación eléctrica con el resto del circuito eléctrico, y se mantiene en su lugar contra la fuerza del resorte por una soldadura fundible. En una condición predeterminada, la cual causa que se funda la soldadura, el émbolo se libera y es movido, por la fuerza del resorte, dentro del alojamiento y fuera de la comunicación eléctrica con el resto del circuito eléctrico.
MX9303625A 1992-10-02 1993-06-17 Fusible de elemento doble. MX9303625A (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2079772 CA2079772C (en) 1992-10-02 1992-10-02 Dual element fuse

Publications (1)

Publication Number Publication Date
MX9303625A true MX9303625A (es) 1994-04-29

Family

ID=4150493

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9303625A MX9303625A (es) 1992-10-02 1993-06-17 Fusible de elemento doble.

Country Status (5)

Country Link
EP (1) EP0590662B1 (es)
BR (1) BR9303989A (es)
CA (1) CA2079772C (es)
DE (1) DE69308097T2 (es)
MX (1) MX9303625A (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112447464A (zh) * 2020-12-11 2021-03-05 西安中熔电气股份有限公司 一种分步断开的双断口激励熔断器
CN113451845B (zh) * 2021-06-11 2023-04-18 大唐陕西发电有限公司延安热电厂 热控系统瓦块温度测量的引线装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2321711A (en) * 1939-05-12 1943-06-15 Chase Shawmut Co Fusible electric protective device
US3681731A (en) * 1971-04-16 1972-08-01 Chase Shawmut Co Cartridge fuse with outer casing and overload interrupting chamber formed by inner sub-casing
US4383236A (en) * 1981-12-28 1983-05-10 Mcgraw-Edison Company Heat limiters and method of manufacture
US4533895A (en) * 1984-06-22 1985-08-06 Littelfuse, Inc. Time delay fuse

Also Published As

Publication number Publication date
DE69308097D1 (de) 1997-03-27
CA2079772C (en) 1998-05-19
EP0590662A1 (en) 1994-04-06
BR9303989A (pt) 1994-04-05
EP0590662B1 (en) 1997-02-12
CA2079772A1 (en) 1994-04-03
DE69308097T2 (de) 1997-05-28

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Legal Events

Date Code Title Description
FG Grant or registration
MM Annulment or lapse due to non-payment of fees