EP0211282B1 - Überstromschutzschalter - Google Patents

Überstromschutzschalter Download PDF

Info

Publication number
EP0211282B1
EP0211282B1 EP86109716A EP86109716A EP0211282B1 EP 0211282 B1 EP0211282 B1 EP 0211282B1 EP 86109716 A EP86109716 A EP 86109716A EP 86109716 A EP86109716 A EP 86109716A EP 0211282 B1 EP0211282 B1 EP 0211282B1
Authority
EP
European Patent Office
Prior art keywords
circuit
fixed contact
arm
breaker according
push button
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
EP86109716A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0211282A1 (de
Inventor
& Poensgen Gmbh Ellenberger
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.)
Ellenberger and Poensgen GmbH
Original Assignee
Ellenberger and Poensgen GmbH
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 Ellenberger and Poensgen GmbH filed Critical Ellenberger and Poensgen GmbH
Priority to AT86109716T priority Critical patent/ATE41557T1/de
Publication of EP0211282A1 publication Critical patent/EP0211282A1/de
Application granted granted Critical
Publication of EP0211282B1 publication Critical patent/EP0211282B1/de
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/22—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having electrothermal release and no other automatic release
    • H01H73/30—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having electrothermal release and no other automatic release reset by push-button, pull-knob or slide
    • H01H73/303—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having electrothermal release and no other automatic release reset by push-button, pull-knob or slide with an insulating body insertable between the contacts when released by a bimetal element
    • 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
    • H01H71/08—Terminals; Connections
    • H01H2071/088—Terminals for switching devices which make the devices interchangeable, e.g. with fuses

Definitions

  • the invention relates to an overcurrent protection switch of the type listed in the preamble of claim 1, known from DE-A-33 42 144.
  • the invention has for its object to improve an overcurrent protection switch of the type mentioned in terms of its shutdown behavior. This object is achieved by the characterizing feature of claim 1.
  • the switch overcurrent when the switch overcurrent is triggered, the arc is cooled down more quickly and cut more reliably by the fact that the fixed contact is not only shielded on one side from the bimetal contact, but is completely encased.
  • the dimensional stability of the insulating wall is increased significantly, since it no longer stands freely in the room as an individual part.
  • the characteristic feature of claim 2 ensures trouble-free longitudinal displacement of the envelope body within the switch housing with simple means.
  • the envelope body is guided outside the fixed contact in a manner which cannot be influenced by burning at the fixed contact over time due to the arcing.
  • the push button fulfills the further function of optimal electrical spacing between the two contact arms. Due to the characterizing feature of claim 8, the assembly of the switch is significantly simplified. The compression spring only needs to be inserted into the blind hole of the enveloping body and the enveloping body has to be pushed onto the fixed contact before the part of the housing holding the two contact arms is connected to the housing enveloping part to form the finished switch.
  • the fixed contact arm 1 and the bimetallic contact arm 2 lie parallel next to one another and are embedded as flat cuboid stamped parts in the housing wall 3 by injection molding. Their ends 4 and 5 lying in the assembled position outside the housing are designed as flat plugs.
  • the main extension planes 6 and 7 of the parts of the contact arms 1, 2 located inside the housing run at a distance 8 parallel to one another.
  • a bimetallic snap disk 10 is attached at the free end 9 of the bimetallic contact arm 2.
  • the sheet metal disk 10 extends transversely to the longitudinal axis 11 of the switch or the contact arms 4, 5 between their free ends 12 and 13 located inside the housing. With their contact end 14, the bimetal snap disk 10 overlaps the fixed contact 15 arranged at the free end 12 of the fixed contact arm 1 10 is in the rest position with its contact end 14 contacting the fixed contact 15 under bias.
  • an insulating wall 16 is mounted inside the housing in the direction of the longitudinal axis 11. With closed contacts (FIG. 2), the insulating wall 16 is in the rest position between the fixed contact 15 or movement contact 17 on the one hand and the housing wall 3 holding the contact arms 1, 2 on the other hand. When the contacts 15, 17 are open, the insulating wall 16 moves automatically under the pressure of the helical compression spring 18 into a disconnected position between the contacts 15, 17 (FIGS. 1 and 3). The insulating wall 16 can be returned to its rest position (FIG. 2), in which the contacts 15, 17 are closed, by means of a push button 21 passing through a housing wall 19 of the main housing part 20.
  • the insulating wall 16 is part of an enveloping body 23 which is longitudinally displaceable on the fixed contact arm 1 and surrounds it with an essentially rectangular recess 22.
  • the enveloping body 23 is guided on the fixed contact arm 1. The guidance takes place in particular in the area of the narrow side surfaces 24 of the fixed contact arm 1.
  • the fixed contact arm 1 is in its main extension plane 6 transversely to the direction of the longitudinal axis 11 on both sides beyond the fixed contact 15 and forms a guide part for the enveloping body 23 there.
  • the enveloping body 23 and the push button 21 form the two legs of an L-shaped insulating part 25.
  • the push button leg 26 lies parallel to the contact arms 1, 2 between them.
  • the push button leg 26 of the insulating part 25 is in the "on him interspersed housing passage opening out 27th
  • the push button leg 26 of the insulating part 25 is acted upon at its end on the envelope body side by the spring 18 which serves to reset the envelope body 23, while the other end of the spring 18 is supported on the area of the housing wall 3 located between the contact arms 1, 2. With its end on the envelope body side, the spring 18 lies in a blind hole 28 made in the push-button leg 26.
  • the push-button leg 26 is provided with a shoulder 29 for path-limiting abutment on the inner wall of the housing passage opening 27 (path limitation see FIG. 1).
  • the two contacts 15, 17 are in contact with one another under prestress through the bim metal snap disk 10 (FIGS. 2, 4).
  • the circuit is closed.
  • the insulating wall 16 is in its rest position. It is pressed by the prestressed return spring 18 in the direction of the longitudinal axis 11 against the closed contacts 15, 17.
  • the push button 21 is largely immersed in the housing wall 19 surrounding it.
  • the bimetallic snap disc snaps open.
  • the contacts 15, 17 are torn open. Under the pressure of the return spring 18, the enveloping body 23 slides on the fixed contact arm 1 in the direction of the housing wall 19 and in doing so leads the insulating wall 16 into the space between the contacts 15, 17.
  • the switch-off arc is drawn out quickly, extremely effectively, cooled and tore off.
  • the contact position between the contacts 15, 17 can be restored simply by pushing the push button 21 into the interior of the housing (FIG. 2).
  • the contact is then closed automatically by the bimetallic snap disk. as soon as the insulating wall 16 has cleared the space between the two contacts 15, 17.

Landscapes

  • Thermally Actuated Switches (AREA)
  • Breakers (AREA)
  • Emergency Protection Circuit Devices (AREA)
EP86109716A 1985-08-02 1986-07-16 Überstromschutzschalter Expired EP0211282B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86109716T ATE41557T1 (de) 1985-08-02 1986-07-16 Ueberstromschutzschalter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8522254U DE8522254U1 (de) 1985-08-02 1985-08-02 Überstromschutzschalter
DE8522254U 1985-08-02

Publications (2)

Publication Number Publication Date
EP0211282A1 EP0211282A1 (de) 1987-02-25
EP0211282B1 true EP0211282B1 (de) 1989-03-15

Family

ID=6783800

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86109716A Expired EP0211282B1 (de) 1985-08-02 1986-07-16 Überstromschutzschalter

Country Status (6)

Country Link
US (1) US4682138A (ko)
EP (1) EP0211282B1 (ko)
JP (1) JPS6235425A (ko)
AT (1) ATE41557T1 (ko)
CA (1) CA1251502A (ko)
DE (2) DE8522254U1 (ko)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8521611U1 (de) * 1985-07-26 1988-10-20 Ellenberger & Poensgen Gmbh, 8503 Altdorf Druckknopfbetätigter Überstromschutzschalter
FR2605798A1 (fr) * 1986-10-27 1988-04-29 Dav Disjoncteur plat a bilame
US5001450A (en) * 1988-07-12 1991-03-19 Wu Shih Liang Circuit break switch
DE19856707A1 (de) * 1998-12-09 2000-06-21 Ellenberger & Poensgen Schutzschalter zur Absicherung von Stromkreisen
US6552644B2 (en) * 2001-07-17 2003-04-22 Tsung-Mou Yu Safety press-button switch
US6707368B2 (en) * 2001-07-18 2004-03-16 Cooper Technologies Company Manually trippable circuit breaker
US6538549B1 (en) 2001-08-30 2003-03-25 Blue Sea Systems Advanced electrical circuit breaker system and method
US6747225B1 (en) * 2003-10-03 2004-06-08 Tsung-Mou Yu Safety switch
CN103545143A (zh) * 2013-07-25 2014-01-29 扬州宝珠电器有限公司 绝缘片锁式手动复位保护器
EP2840586A1 (en) * 2013-08-21 2015-02-25 Siemens Aktiengesellschaft Self-retention compression spring with housing
JP6967878B2 (ja) * 2017-06-01 2021-11-17 ボーンズ株式会社 ブレーカー及びそれを備えた安全回路。
US10796872B1 (en) * 2019-09-01 2020-10-06 Kuoyuh W.L. Enterprise Co., Ltd. Vehicle circuit breaker

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB275038A (en) * 1926-09-22 1927-08-04 Ernest Aichele Automatic safety electric circuit breaker
US3697706A (en) * 1971-06-23 1972-10-10 Baldwin Co D H Push type electric switch with contact post, movable coil spring contact and interposed non conductive plunger
US4068203A (en) * 1976-06-15 1978-01-10 Heinemann Electric Company Bimetallic circuit breaker
DE3342144A1 (de) * 1983-11-22 1985-05-30 Ellenberger & Poensgen Gmbh, 8503 Altdorf Druckknopfbetaetigter ueberstromschutzschalter

Also Published As

Publication number Publication date
JPS6235425A (ja) 1987-02-16
DE8522254U1 (de) 1985-09-26
JPH0324005B2 (ko) 1991-04-02
EP0211282A1 (de) 1987-02-25
ATE41557T1 (de) 1989-04-15
US4682138A (en) 1987-07-21
DE3662478D1 (en) 1989-04-20
CA1251502A (en) 1989-03-21

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