DE59712140D1 - Overload switching device for electrical devices - Google Patents

Overload switching device for electrical devices

Info

Publication number
DE59712140D1
DE59712140D1 DE59712140T DE59712140T DE59712140D1 DE 59712140 D1 DE59712140 D1 DE 59712140D1 DE 59712140 T DE59712140 T DE 59712140T DE 59712140 T DE59712140 T DE 59712140T DE 59712140 D1 DE59712140 D1 DE 59712140D1
Authority
DE
Germany
Prior art keywords
contacts
switching device
electrical devices
push button
switching stages
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 - Lifetime
Application number
DE59712140T
Other languages
German (de)
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.)
Lectra Trading AG
Original Assignee
Lectra Trading AG
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 Lectra Trading AG filed Critical Lectra Trading AG
Application granted granted Critical
Publication of DE59712140D1 publication Critical patent/DE59712140D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/02—Details
    • H01H37/32—Thermally-sensitive members
    • H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
    • H01H37/54—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting
    • H01H37/5409—Bistable switches; Resetting means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
    • H01H1/504—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position by thermal means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/16—Indicators for switching condition, e.g. "on" or "off"
    • H01H9/161—Indicators for switching condition, e.g. "on" or "off" comprising light emitting elements

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Thermally Actuated Switches (AREA)
  • Control Of Electric Motors In General (AREA)
  • Electronic Switches (AREA)

Abstract

The thermal overload device has two switching stages each with fixed contacts [10,11] and a bridging contact [14] held by a spring element [15]. In line with the switching stages is a bimetallic element [12] that is heated by a unit [18] coupled into the electrical circuit. At a threshold temperature the bimetallic element inverts and displaces a plunger [16] to open the contacts. The device has a push button cap [26] inside of which is an indicator bulb [19] that has a electorial connections to one pair of contacts [10.11] that connect to the load. The switch may also be manually operated by pressing the push button.
DE59712140T 1996-03-15 1997-03-05 Overload switching device for electrical devices Expired - Lifetime DE59712140D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19610185A DE19610185C1 (en) 1996-03-15 1996-03-15 Thermal overload switch for electrical apparatus

Publications (1)

Publication Number Publication Date
DE59712140D1 true DE59712140D1 (en) 2005-02-03

Family

ID=7788371

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19610185A Expired - Fee Related DE19610185C1 (en) 1996-03-15 1996-03-15 Thermal overload switch for electrical apparatus
DE59712140T Expired - Lifetime DE59712140D1 (en) 1996-03-15 1997-03-05 Overload switching device for electrical devices

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE19610185A Expired - Fee Related DE19610185C1 (en) 1996-03-15 1996-03-15 Thermal overload switch for electrical apparatus

Country Status (3)

Country Link
EP (1) EP0801408B1 (en)
AT (1) ATE286301T1 (en)
DE (2) DE19610185C1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10066512B3 (en) * 2000-07-30 2018-02-22 Dewertokin Gmbh Circuit arrangement for mains disconnection of seats and sleeping furniture
DE10037358B4 (en) * 2000-07-30 2015-01-15 Dewertokin Gmbh Circuit arrangement for mains disconnection of seats and sleeping furniture
EP1933349B1 (en) * 2006-12-13 2008-10-22 Lectra Trading AG Overload switchgear for electrical devices
JP6997685B2 (en) * 2018-07-31 2022-01-18 ボーンズ株式会社 Current breaker, safety circuit and rechargeable battery pack

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH244173A (en) * 1945-10-24 1946-08-31 Singer Mfg Co Thermostatic switch with signaling device.
US2839638A (en) * 1957-03-28 1958-06-17 Metals & Controls Corp Thermally responsive switch structures
US2839637A (en) * 1957-04-08 1958-06-17 Metals & Controls Corp Thermally responsive device
US3258567A (en) * 1964-05-29 1966-06-28 Elmwood Sensors Thermostat and reset therefor
DE2625120C3 (en) * 1976-06-04 1980-04-10 Peter 7530 Pforzheim Hofsaess Electrical temperature protection switch
CH671649A5 (en) * 1986-01-31 1989-09-15 Kienzler Ag G
DE3802647C2 (en) * 1988-01-29 1998-02-05 Lectra Trading Ag Display device for the switching state of a circuit breaker
DE3932604C1 (en) * 1989-09-29 1990-05-03 Schoeller & Co Elektrotechnische Fabrik Gmbh & Co, 6000 Frankfurt, De

Also Published As

Publication number Publication date
EP0801408A3 (en) 2000-07-26
EP0801408A2 (en) 1997-10-15
DE19610185C1 (en) 1997-04-10
EP0801408B1 (en) 2004-12-29
ATE286301T1 (en) 2005-01-15

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition