EP1619701A1 - Microrupteur - Google Patents

Microrupteur Download PDF

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Publication number
EP1619701A1
EP1619701A1 EP05011368A EP05011368A EP1619701A1 EP 1619701 A1 EP1619701 A1 EP 1619701A1 EP 05011368 A EP05011368 A EP 05011368A EP 05011368 A EP05011368 A EP 05011368A EP 1619701 A1 EP1619701 A1 EP 1619701A1
Authority
EP
European Patent Office
Prior art keywords
plunger
switch plunger
housing
cantilever
switch
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.)
Granted
Application number
EP05011368A
Other languages
German (de)
English (en)
Other versions
EP1619701B1 (fr
Inventor
Wolfgang Mayer
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.)
Schaltbau GmbH
Original Assignee
Schaltbau 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 Schaltbau GmbH filed Critical Schaltbau GmbH
Publication of EP1619701A1 publication Critical patent/EP1619701A1/fr
Application granted granted Critical
Publication of EP1619701B1 publication Critical patent/EP1619701B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/001—Means for preventing or breaking contact-welding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/26—Snap-action arrangements depending upon deformation of elastic members
    • H01H13/36—Snap-action arrangements depending upon deformation of elastic members using flexing of blade springs

Definitions

  • the invention relates to a micro-switch with a housing, arranged with a offset to the center of the housing, protruding from the housing switch plunger, arranged on the opposite side of the switch plunger housing contacts and with a, via the switch plunger and a bistable spring from a first in a second switching position convertible contact bridge, wherein the switch plunger has a cantilever cantilever cantilever, at whose cantilevered end a hold-down for positively opening the contact bridge is provided.
  • Such a microswitch is known, for example, from EP-618603 B1, which is based on the applicant of the present patent application.
  • a bistable spring arrangement is provided, which causes a rapid opening of the switching contacts in order to reduce the contact erosion occurring during the switching due to flashover. Since it can not be completely ruled out that it comes to a welding between the switching contacts due to excessive current or oxidation of the contact points, the known micro-switch provides that on the cantilever a hold-down is provided in the course of the switch plunger on the contact bridge acts and causes a forced opening of the contacts. In micro switches of the smallest design, the problem arises that the cantilever can yield due to its dimensions.
  • the ram would have to be extended, or the cantilever be dimensioned accordingly stronger. Both measures would adversely affect the size of the microswitch.
  • the ability to make the switch plunger with a cantilever made of a material with a higher modulus of elasticity leads to cost disadvantages.
  • Object of the present invention is therefore to improve a micro-switch of the type mentioned so that there is a secure positive opening at the possibility of further size reduction.
  • This object is achieved in that is applied to the cantilever arm opposite side of the switch plunger with a distance from the switch plunger on a resilient part of the spring acting support projection, such that when pressed of the switch plunger via the support projection a moment is applied to the cantilever arm of the switch plunger in the opening direction of the contact bridge.
  • the hold-down of the cantilever is moved not only according to the ram way down, but that in addition due to the support on the opposite side of the cantilever arm a rotational movement acts on the cantilever, so that a deflection of the cantilever by the on the cantilever acting torque is compensated.
  • This solution therefore allows the retention of the original ram travel and also requires no greater dimensioning of the cantilever or even the use of expensive materials.
  • the region of the spring on which the supporting projection acts has a higher spring constant than the contact bridge at the point at which the hold-down of the cantilever presses on the contact bridge.
  • the switching plunger has two axially acting guides, wherein cantilever and Abstützvorsprung lie between the two guides and wherein the two guides are offset transversely to the axial direction of the plunger against each other. In this way, the force acting on the lever arm of the cantilever opening moment is extended, which leads to a further improvement of the forced opening.
  • the lower guide has the same lateral distance to the plunger axis as the support projection.
  • the lower guide consists of two laterally arranged guide ribs, which are guided in corresponding grooves of the housing wall.
  • the cantilever, the support projection and the lateral guide ribs are integrally connected to the switch plunger.
  • the drawing shows a micro-switch in a sectional view, which has a housing 2 with a housing interior 3.
  • a switch plunger 4 is arranged, which has two axial guides 5 and 6, which are accommodated in two bearing points 7 and 8 in the housing 2.
  • the arranged in the housing interior guide 6 has two laterally arranged on the switch plunger guide ribs 6a, which engages the associated bearing point 7 in two provided in the housing inner wall guide grooves 7a.
  • the guide 6 opposite guide 5 and its associated bearing 8 have an oval cross-section.
  • a hold-down 10 is attached to the free end of the switch plunger 4 via a cantilever.
  • an extension with a support projection 12 is arranged on the side opposite the cantilever 9 side of the switch plunger 4.
  • the extension 11 of the switch plunger 4 acts with the support projection 12 on the clasp-shaped curved end of an elastically deformable and electrically conductive contact bridge 13, which has a bistable spring arrangement consisting of a compression spring part 14 and a switch contact 15.
  • the compression spring part 14 and the contact bridge 13 are made in one piece and are supported on both sides in the recesses 17 and 18 of an S-shaped fixed contact 19, wherein the contact bridge 13 is held in position and is electrically conductively connected to the fixed contact 19 ,
  • two fixed contacts 20 and 21 are arranged, which, like the fixed contact 19, are electrically conductively connected to the outside of the housing 2 arranged connection contacts 22, 23 and 24 in combination.
  • the compression spring 14 causes the switching contact 15 to be held in the first switching position, supported by the force of the spring-elastic contact bridge 13.
  • the connection contact 22 is via the fixed contact 19, via the contact bridge 13, over the Switching contact 15, connected via the fixed contact 20 with the terminal contact 24.
  • the switch plunger can be pushed so far into the housing until the hold-down presses the switching bridge 13 directly onto the fixed contact (see Fig. 4).

Landscapes

  • Push-Button Switches (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
EP05011368A 2004-07-21 2005-05-25 Microrupteur Active EP1619701B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004035193A DE102004035193A1 (de) 2004-07-21 2004-07-21 Mikroschalter

Publications (2)

Publication Number Publication Date
EP1619701A1 true EP1619701A1 (fr) 2006-01-25
EP1619701B1 EP1619701B1 (fr) 2007-01-31

Family

ID=34936940

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05011368A Active EP1619701B1 (fr) 2004-07-21 2005-05-25 Microrupteur

Country Status (5)

Country Link
US (1) US7087851B2 (fr)
EP (1) EP1619701B1 (fr)
CN (1) CN100345231C (fr)
DE (2) DE102004035193A1 (fr)
NO (1) NO329275B1 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6752767B2 (en) 2002-04-16 2004-06-22 Vivant Medical, Inc. Localization element with energized tip
US8292880B2 (en) 2007-11-27 2012-10-23 Vivant Medical, Inc. Targeted cooling of deployable microwave antenna
DE102008035043B4 (de) * 2008-07-26 2013-04-04 Johnson Electric Oldenburg Gmbh & Co. Kg Mikroschalter
FR2936902B1 (fr) * 2008-10-07 2010-09-17 Schneider Electric Ind Sas Dispositif d'arret d'urgence
CN102208126B (zh) * 2010-03-31 2013-06-12 西门子公司 手动报警装置
CN102750808B (zh) * 2012-07-20 2014-04-02 无锡蓝天电子有限公司 手动火灾报警器的按钮结构
JP5848219B2 (ja) * 2012-09-13 2016-01-27 アルプス電気株式会社 押圧型スイッチ装置
USD728472S1 (en) * 2013-01-31 2015-05-05 Omron Corporation Microswitch
CN103413699B (zh) * 2013-08-29 2015-04-22 石家庄八五零电子有限公司 一种微动开关
CN103441016B (zh) * 2013-08-30 2015-09-09 石家庄八五零电子有限公司 一种功率型微动开关
JP1532529S (fr) * 2014-08-06 2015-08-31
JP1532127S (fr) * 2014-08-06 2015-08-31
CN107845525B (zh) * 2017-12-04 2020-06-30 漳州聚安美电气科技有限公司 带强制分离机构的微动开关
DE202018107322U1 (de) 2018-12-20 2019-01-14 Fraba B.V. Mikroschalter
JP7542322B2 (ja) * 2020-02-17 2024-08-30 株式会社マキタ 電動工具
CN112336576B (zh) * 2020-12-04 2022-12-20 西安交通大学医学院第一附属医院 一种用于治疗神经内科病患的康复装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0618603A1 (fr) * 1993-04-02 1994-10-05 Schaltbau Aktiengesellschaft Microrupteur
EP0618601A1 (fr) * 1993-04-02 1994-10-05 Schaltbau Aktiengesellschaft Microrupteur
FR2716746A1 (fr) * 1993-04-07 1995-09-01 Vialy Roger Microrupteur à rupture brusque et à contacts frottants.
US6255611B1 (en) * 2000-02-17 2001-07-03 Shin Jiuh Corp. Pushbutton switch

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3187132A (en) * 1962-11-14 1965-06-01 Maxson Electronics Corp Overtravel actuating mechanism for a snap action electrical switch
US4109121A (en) * 1976-07-22 1978-08-22 Robertshaw Controls Company Electrical switch construction and method of making the same
US4270108A (en) * 1979-12-10 1981-05-26 Guardian Electric Manufacturing Company Bistable control switch
US4931605A (en) * 1989-08-07 1990-06-05 Itt Corporation Multi-pole switch
US5661274A (en) * 1995-08-08 1997-08-26 Eaton Corporation Precision double-pole single-throw switch assembly

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0618603A1 (fr) * 1993-04-02 1994-10-05 Schaltbau Aktiengesellschaft Microrupteur
EP0618601A1 (fr) * 1993-04-02 1994-10-05 Schaltbau Aktiengesellschaft Microrupteur
FR2716746A1 (fr) * 1993-04-07 1995-09-01 Vialy Roger Microrupteur à rupture brusque et à contacts frottants.
US6255611B1 (en) * 2000-02-17 2001-07-03 Shin Jiuh Corp. Pushbutton switch

Also Published As

Publication number Publication date
US20060016678A1 (en) 2006-01-26
NO329275B1 (no) 2010-09-27
EP1619701B1 (fr) 2007-01-31
DE102004035193A1 (de) 2006-02-16
CN1725397A (zh) 2006-01-25
DE502005000353D1 (de) 2007-03-22
NO20053534D0 (no) 2005-07-19
CN100345231C (zh) 2007-10-24
US7087851B2 (en) 2006-08-08
NO20053534L (no) 2005-12-22

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