EP0134293A1 - Dispositif de commutation en particulier pour interrupteurs limiteur ou boutons poussoir limiteur - Google Patents

Dispositif de commutation en particulier pour interrupteurs limiteur ou boutons poussoir limiteur Download PDF

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Publication number
EP0134293A1
EP0134293A1 EP83108849A EP83108849A EP0134293A1 EP 0134293 A1 EP0134293 A1 EP 0134293A1 EP 83108849 A EP83108849 A EP 83108849A EP 83108849 A EP83108849 A EP 83108849A EP 0134293 A1 EP0134293 A1 EP 0134293A1
Authority
EP
European Patent Office
Prior art keywords
switching device
slide
contact bridge
contact
hand
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
EP83108849A
Other languages
German (de)
English (en)
Other versions
EP0134293B1 (fr
Inventor
Heinz Grunst
Heinz Kleine
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.)
Square D Starkstrom GmbH
Original Assignee
Square D Starkstrom 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 Square D Starkstrom GmbH filed Critical Square D Starkstrom GmbH
Priority to AT83108849T priority Critical patent/ATE32285T1/de
Priority to DE8383108849T priority patent/DE3375535D1/de
Priority to EP83108849A priority patent/EP0134293B1/fr
Priority to ES531290A priority patent/ES531290A0/es
Priority to DK271384A priority patent/DK271384A/da
Priority to US06/645,845 priority patent/US4578549A/en
Priority to CA000462338A priority patent/CA1248162A/fr
Priority to NO843560A priority patent/NO843560L/no
Publication of EP0134293A1 publication Critical patent/EP0134293A1/fr
Application granted granted Critical
Publication of EP0134293B1 publication Critical patent/EP0134293B1/fr
Expired legal-status Critical Current

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Classifications

    • 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
    • H01H13/28—Snap-action arrangements depending upon deformation of elastic members using compression or extension of coil springs
    • H01H13/285—Snap-action arrangements depending upon deformation of elastic members using compression or extension of coil springs having a symmetrical configuration
    • 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
    • H01H13/12—Movable parts; Contacts mounted thereon
    • H01H13/20—Driving mechanisms
    • 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

Definitions

  • the invention relates to a switching device, in particular for limit switches or limit switches, with a snap-action switching mechanism and at least one movable contact bridge which is guided in a contact bridge holder and can be actuated via an actuating plunger.
  • Switching devices of the aforementioned type are already known in practice in various constructions. It is common here that to actuate one or more contact bridges, ie to carry out a switching operation, the plunger acts on a snap-action mechanism, which can jump from one end or rest position to another end or rest position if one moves by pushing the plunger intermediate dead center is exceeded.
  • the switching movement of the relevant contact bridges triggered by the plunger is always opposite to the movement or direction of movement of the plunger. Since you can not see the movement conditions or processes inside the known switching devices from the outside, because the switching devices are generally in closed housings, errors can easily occur, because the operators do not expect from the view that the NO and NC act counter to the direction of movement of the actuating plunger, i.e. the contacts to be located after the actuating plunger, the NO and the remote Contacts that are normally closed contacts.
  • the invention is based on the object to provide a switching device in which the actual switching operations take place in the same direction of movement as the plunger, and there is a non-positive connection between the actuating plunger and the contact bridge switch.
  • the object is achieved in that the snap-action switching mechanism is designed such that the direction of movement of each contact bridge corresponds to the direction of movement of the actuating plunger when switching.
  • FIG. 1 to 8 illustrate an embodiment of a switching device according to the invention with a lower housing part 1 and an upper housing part or cover 2.
  • FIG. 2 illustrates, fixed contact pieces 3, 4, 5 and 6 are arranged in the interior of the housing, namely on fixed contact rails 7, 8 , 9 and 10, which in turn are provided with contact connection screws 11, 12, 13 and 14 for making the electrical connections or the wiring for the switching device.
  • These contact terminal screws are provided in the interior of the housing in this embodiment.
  • passage openings are then provided at suitable locations on the housing for the connecting wires. You can also extend the fixed contact rails to the outside of the housing so that the contact connection screws are accessible from the outside and the wiring can be connected without removing the upper part of the housing.
  • Movable contact pieces 17, 18, 19 and 20 work together with the fixed contact pieces 3 to 6 and are fastened on two contact bridges 15, 16 in the present exemplary embodiment.
  • the contact bridge 15 forms a make contact and the contact bridge 16 forms a break contact.
  • the two contact bridges 15, 16 are movably held and guided in a common contact bridge holder 21.
  • the contact bridge holder 21 is designed as a double cross with two lateral arms 22 and 23 and legs 24, 25, 26 and 27 arranged in pairs in the direction of displacement.
  • the contact bridges 15, 16 are movably guided in recesses 28, 29 of the legs 24 to 27. However, they are under the pressure of contact pressure springs 30 and 31, which are inserted between the pairs of legs 24, 25 and 26, 27, respectively.
  • the contact pressure springs 30 and 31 are supported on the one hand on the relevant contact bridge 15 or 16 and on the other hand on a middle piece 32 (FIG. 2) of the contact bridge holder 21.
  • the contact bridge switch 21 has on its legs 24, 25, 26 and 27 downward projections 43, 44, 45 and 46, which are located on both sides of a slide 47 and serve - a guide to reach between the contact bridge holder 21 and the slide 47 in the direction of displacement.
  • an actuating plunger 53 is connected to the right end of the slide 47.
  • a compression spring 48 is inserted, which is supported on the end of the slide 47 on the one hand and the wall of the lower housing part 1 and is held by lugs 50 and 51.
  • a push arm 55 is advantageously attached in one piece to the actuating plunger 53, which pushes inwards through an opening 56 in the upper housing part 2 and which is dimensioned just long enough that when the actuating plunger 53 is pressed in, the welded or cohesive opener contacts between the contact pieces 19, 20 of the contact bridge 16 and the fixed contact pieces 5, 6 are forcibly broken, i.e. if the actuating plunger 53 is pressed to the left with the pusher arm 55 according to FIGS Middle part of the contact bridge 16 and takes this inevitably if the contacts of this opener have not opened shortly before.
  • the pressure arm 55 is advantageously part of an angle piece 54, which is advantageously connected in one piece to the front end of the actuating plunger 53.
  • the actuating plunger 53 acts on the slide 47 when actuated.
  • a slide 57 is assigned to the slide 47, which is expediently designed as a rectangular frame and consists of a lower slide part 58, an upper slide part 59 and two lateral slide parts 60 and 61.
  • the slider surrounds the slider 47 and is of such a wide construction, as shown in particular in FIG. 4, that springs 72 and 73 are arranged between the slider 47 on the one hand and the lateral slider parts 60 and 61 on the other hand.
  • the springs 72 and 73 can advantageously be held by means of lugs 68, 69, 70 and 71 on the one hand and notches 79, 80, 81 and 82.
  • pins 62 and 63 are fastened to the outer surfaces of the lateral slide parts 60 and 61, so that a lower arm of each of the two double-armed levers 37 and 38 can engage on the slide 57, by means of a guide slits 64.
  • the direction of movement of the contact bridges and the contact bridge holder is the same as that of the actuating plunger 53.
  • the reversal of the direction of movement of the snap-action mechanism explained above thus takes place by means of the two double-armed levers 37 and 38.
  • the actuating plunger 53 is released, the processes take place in the reverse order.
  • FIG. 9 shows yet another exemplary embodiment of a construction detail of the device according to the invention.
  • the springs 77 and 78 are formed as substantially cylindrical pieces made of resilient plastic. This simplifies the construction and facilitates the insertion of the springs 77, 78, which is important if the switching device is in practice substantially smaller overall than shown in the figures.
  • compression springs 83 and 84 can be used in the cylindrical pieces of the spring springs 77, 78, in such a way that the spring springs 77, 78 with the pressure springs 83, 84 can be used as prefabricated units.

Landscapes

  • Push-Button Switches (AREA)
  • Switches With Compound Operations (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Press Drives And Press Lines (AREA)
  • Mechanical Operated Clutches (AREA)
  • Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)
  • Arc Welding Control (AREA)
EP83108849A 1983-09-08 1983-09-08 Dispositif de commutation en particulier pour interrupteurs limiteur ou boutons poussoir limiteur Expired EP0134293B1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
AT83108849T ATE32285T1 (de) 1983-09-08 1983-09-08 Schaltvorrichtung, insbesondere fuer endschalter oder grenztaster.
DE8383108849T DE3375535D1 (en) 1983-09-08 1983-09-08 Switching device, in particular for limit switches or press button limit switches
EP83108849A EP0134293B1 (fr) 1983-09-08 1983-09-08 Dispositif de commutation en particulier pour interrupteurs limiteur ou boutons poussoir limiteur
ES531290A ES531290A0 (es) 1983-09-08 1984-04-04 Dispositivo de maniobra, particularmente para interruptores de fin de carrera o pulsadores de limite
DK271384A DK271384A (da) 1983-09-08 1984-06-01 Elektrisk omskiftningsindretning, isaer endeafbryder eller graenseomkobler
US06/645,845 US4578549A (en) 1983-09-08 1984-08-29 Snap action electrical switch
CA000462338A CA1248162A (fr) 1983-09-08 1984-09-04 Interrupteur a action brusque et a double effet
NO843560A NO843560L (no) 1983-09-08 1984-09-07 Koplingsinnretning, saerlig for endebrytere eller grensebrytere

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP83108849A EP0134293B1 (fr) 1983-09-08 1983-09-08 Dispositif de commutation en particulier pour interrupteurs limiteur ou boutons poussoir limiteur

Publications (2)

Publication Number Publication Date
EP0134293A1 true EP0134293A1 (fr) 1985-03-20
EP0134293B1 EP0134293B1 (fr) 1988-01-27

Family

ID=8190667

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83108849A Expired EP0134293B1 (fr) 1983-09-08 1983-09-08 Dispositif de commutation en particulier pour interrupteurs limiteur ou boutons poussoir limiteur

Country Status (8)

Country Link
US (1) US4578549A (fr)
EP (1) EP0134293B1 (fr)
AT (1) ATE32285T1 (fr)
CA (1) CA1248162A (fr)
DE (1) DE3375535D1 (fr)
DK (1) DK271384A (fr)
ES (1) ES531290A0 (fr)
NO (1) NO843560L (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2575592A1 (fr) * 1984-12-28 1986-07-04 Telemecanique Electrique Appareil interrupteur a equipage mobile equilibre et ouverture forcee
FR2579009A1 (fr) * 1985-03-13 1986-09-19 Telemecanique Electrique Interrupteur electrique a ouverture forcee de ses contacts repos
FR2785441A1 (fr) * 1998-11-03 2000-05-05 Crouzet Automatismes Interrupteur a rupture brusque et a ouverture forcee avec tolerance de mise en place amelioree
WO2003032346A1 (fr) * 2001-10-12 2003-04-17 Soderep-Ecans Dispositif de verrouillage mecanique bistable d'un mobile en translation, et coupe-batterie equipe de ce dispositif

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6677841B2 (en) * 2001-09-21 2004-01-13 Siemens Energy & Automation System and method for mounting a pusher and moveable contact in a contact block
TWM250309U (en) * 2003-08-27 2004-11-11 Hon Hai Prec Ind Co Ltd Switch
CN103177884B (zh) * 2011-12-26 2016-09-14 上海电科电器科技有限公司 低压电器的触头结构
CN107134380B (zh) * 2017-06-05 2019-08-02 漳州聚安美电气科技有限公司 限位开关芯部结构
CN107039203B (zh) * 2017-06-05 2019-08-02 漳州聚安美电气科技有限公司 一种防止动作死点的开关芯部结构
CN111524735B (zh) * 2020-06-08 2024-06-04 上海飞力勋铖电气科技有限公司 微动开关

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1865952U (de) * 1957-11-26 1963-01-24 Continental Elektroindustie Ag Endschalter.
DE6915366U (de) * 1969-04-17 1969-09-11 Joachim Wanke Elektrischer endschalter
DE2228096B2 (de) * 1972-06-09 1974-09-19 Schiele Verwaltungsgesellschaft Mbh, 7746 Hornberg Elektrischer, mechanisch betätigter Sprungschalter

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3973094A (en) * 1975-04-28 1976-08-03 Allen-Bradley Company Two-stage snap-action switch
ES265804Y (es) * 1982-06-14 1983-09-01 Dispositivo perfeccionado de disparo para reles termicos.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1865952U (de) * 1957-11-26 1963-01-24 Continental Elektroindustie Ag Endschalter.
DE6915366U (de) * 1969-04-17 1969-09-11 Joachim Wanke Elektrischer endschalter
DE2228096B2 (de) * 1972-06-09 1974-09-19 Schiele Verwaltungsgesellschaft Mbh, 7746 Hornberg Elektrischer, mechanisch betätigter Sprungschalter

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2575592A1 (fr) * 1984-12-28 1986-07-04 Telemecanique Electrique Appareil interrupteur a equipage mobile equilibre et ouverture forcee
FR2579009A1 (fr) * 1985-03-13 1986-09-19 Telemecanique Electrique Interrupteur electrique a ouverture forcee de ses contacts repos
WO1986005627A1 (fr) * 1985-03-13 1986-09-25 La Telemecanique Electrique Interrupteur electrique a ouverture forcee de ses contacts repos
GB2182495A (en) * 1985-03-13 1987-05-13 Telemecanique Electrique Electric switch with forced opening of its rest contacts
GB2182495B (en) * 1985-03-13 1989-06-21 Telemecanique Electrique Electric switch with forced opening of its rest contacts
FR2785441A1 (fr) * 1998-11-03 2000-05-05 Crouzet Automatismes Interrupteur a rupture brusque et a ouverture forcee avec tolerance de mise en place amelioree
WO2000026929A1 (fr) * 1998-11-03 2000-05-11 Crouzet Automatismes Interrupteur a rupture brusque et a ouverture forcee avec tolerance de mise en place amelioree
US6486428B1 (en) 1998-11-03 2002-11-26 Crouzet Automatismes Quick-release switch with forced opening with improved mounting tolerance
WO2003032346A1 (fr) * 2001-10-12 2003-04-17 Soderep-Ecans Dispositif de verrouillage mecanique bistable d'un mobile en translation, et coupe-batterie equipe de ce dispositif
FR2830979A1 (fr) * 2001-10-12 2003-04-18 Soderep Ecans Sa Dispositif de verrouillage mecanique bistable d'un mobile en translation, et coupe-batterie equipe de ce dispositif

Also Published As

Publication number Publication date
DK271384D0 (da) 1984-06-01
DE3375535D1 (en) 1988-03-03
ES8507724A1 (es) 1985-10-01
EP0134293B1 (fr) 1988-01-27
NO843560L (no) 1985-03-11
ES531290A0 (es) 1985-10-01
ATE32285T1 (de) 1988-02-15
US4578549A (en) 1986-03-25
DK271384A (da) 1985-03-09
CA1248162A (fr) 1989-01-03

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