GB1116688A - Circuit breaker device - Google Patents

Circuit breaker device

Info

Publication number
GB1116688A
GB1116688A GB40787/65A GB4078765A GB1116688A GB 1116688 A GB1116688 A GB 1116688A GB 40787/65 A GB40787/65 A GB 40787/65A GB 4078765 A GB4078765 A GB 4078765A GB 1116688 A GB1116688 A GB 1116688A
Authority
GB
United Kingdom
Prior art keywords
strip
hot wire
resilient
contacts
allows
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB40787/65A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NIKKO DENKI SEISAKUSHO Ltd
Original Assignee
NIKKO DENKI SEISAKUSHO 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 NIKKO DENKI SEISAKUSHO Ltd filed Critical NIKKO DENKI SEISAKUSHO Ltd
Publication of GB1116688A publication Critical patent/GB1116688A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/14—Electrothermal mechanisms
    • H01H71/18—Electrothermal mechanisms with expanding rod, strip, or wire

Abstract

1,116,688. Thermal switches. NIKKO DENKI SEISAKUSHO Ltd. 24 Sept., 1965 [30 Dec., 1964 (2)], No. 40787/65. Heading H1N An electric circuit breaker comprises a resiliently mounted moving contact S1 held against fixed contact S2 by a current carrying hot wire 2 which, on expansion due to heating by overcurrent, allows the resilient mounting to snap open the contacts. In the first embodiment, the resilient mounting is provided by a U-shaped resilient strip 4 held by hot wire 2 against its normal downwards biasing which is restored with a snap action due to the resilience of the strip when hot wire 2 expands. Resetting is by button 3 acting through arm 5 with twin projections 8 bearing on the legs of strip 4, depression of which restores the original curvature and release of which allows the strip 4 to move upwards to close the contacts. In the second embodiment, Figs. 5, 6, 7 (not shown), the resilient mounting is provided by resilient strip (103) and resilient arms (112, 113), arm (113) being held by hot wire (102) against its normal outward bias holding strip (103) downwards against its normal bias which is restored when hot wire (102) expands, the action being assisted by the current flowing in opposite direction in strip (103) and strip (104) carrying the fixed contact. Resetting is by push (106), which, on depression, restores the downward bias of strip (103), and, on release allows the contacts to close. In both embodiments, adjustment of operating current is by adjusting the tension of the hot wire.
GB40787/65A 1964-12-30 1965-09-24 Circuit breaker device Expired GB1116688A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP10243164 1964-12-30
JP7450064 1964-12-30

Publications (1)

Publication Number Publication Date
GB1116688A true GB1116688A (en) 1968-06-12

Family

ID=26415649

Family Applications (1)

Application Number Title Priority Date Filing Date
GB40787/65A Expired GB1116688A (en) 1964-12-30 1965-09-24 Circuit breaker device

Country Status (4)

Country Link
US (1) US3340374A (en)
JP (1) JPS494706B1 (en)
DE (1) DE1513242B2 (en)
GB (1) GB1116688A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0104474A2 (en) * 1982-09-01 1984-04-04 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Circuitry in motor vehicles
EP0275517A2 (en) * 1987-01-17 1988-07-27 Vorwerk & Co. Interholding GmbH Overload snap circuit-breaking switch for domestic apparatuses

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4054769A (en) * 1976-03-04 1977-10-18 The Tappan Company Microwave oven interlock switch safety
ATE151566T1 (en) * 1993-03-17 1997-04-15 Ellenberger & Poensgen DEVICE SWITCH WITH INTEGRATED OVERCURRENT PROTECTION
DK0616347T3 (en) * 1993-03-17 1998-10-07 Ellenberger & Poensgen Multi-pole safety switch

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2074345A (en) * 1934-02-09 1937-03-23 Schmidinger Joseph Switch
US2388033A (en) * 1941-12-19 1945-10-30 Gen Motors Corp Flasher switch
US2635156A (en) * 1951-01-19 1953-04-14 Welter Otto Thermal circuit breaker
FR1085267A (en) * 1953-10-19 1955-01-31 Ducellier Ets Blister springs
US3105887A (en) * 1958-10-24 1963-10-01 Haydon Switch Inc Switch and parts thereof
US3052780A (en) * 1960-10-28 1962-09-04 Tung Sol Electric Inc Snap action device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0104474A2 (en) * 1982-09-01 1984-04-04 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Circuitry in motor vehicles
EP0104474A3 (en) * 1982-09-01 1987-05-27 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Circuitry in motor vehicles
EP0275517A2 (en) * 1987-01-17 1988-07-27 Vorwerk & Co. Interholding GmbH Overload snap circuit-breaking switch for domestic apparatuses
EP0275517A3 (en) * 1987-01-17 1990-01-03 Vorwerk & Co. Interholding Gmbh Overload snap circuit-breaking switch for domestic apparatuses

Also Published As

Publication number Publication date
JPS494706B1 (en) 1974-02-02
US3340374A (en) 1967-09-05
DE1513242B2 (en) 1970-08-13
DE1513242A1 (en) 1969-12-11

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