WO2012154131A1 - Bistable switch with a bistable mechanism - Google Patents

Bistable switch with a bistable mechanism Download PDF

Info

Publication number
WO2012154131A1
WO2012154131A1 PCT/SI2011/000033 SI2011000033W WO2012154131A1 WO 2012154131 A1 WO2012154131 A1 WO 2012154131A1 SI 2011000033 W SI2011000033 W SI 2011000033W WO 2012154131 A1 WO2012154131 A1 WO 2012154131A1
Authority
WO
WIPO (PCT)
Prior art keywords
bistable
rocker arm
switch
contacts
onto
Prior art date
Application number
PCT/SI2011/000033
Other languages
French (fr)
Inventor
Marko RODE
Original Assignee
ISKRA MIS, d.d.
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 ISKRA MIS, d.d. filed Critical ISKRA MIS, d.d.
Publication of WO2012154131A1 publication Critical patent/WO2012154131A1/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/02—Non-polarised relays
    • H01H51/04—Non-polarised relays with single armature; with single set of ganged armatures
    • H01H51/06—Armature is movable between two limit positions of rest and is moved in one direction due to energisation of an electromagnet and after the electromagnet is de-energised is returned by energy stored during the movement in the first direction, e.g. by using a spring, by using a permanent magnet, by gravity
    • H01H51/08—Contacts alternately opened and closed by successive cycles of energisation and de-energisation of the electromagnet, e.g. by use of a ratchet
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
    • H01H50/643—Driving arrangements between movable part of magnetic circuit and contact intermediate part performing a rotating or pivoting movement
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/04—Levers

Definitions

  • the subject of the invention is a bistable switch with a bistable mechanism, wherein the mechanism and the construction of contacts that provide for the functioning of the fundamental function of a bistable switch, i. e. switching of contacts by means of an electromagnetic drive excited by electric pulses, enables switching of the switch with a minimum energy input.
  • the present invention belongs to class H01 H 51/08 of the international patent classification.
  • bistable switch The technical problem satisfactorily solved by the present construction of a bistable switch is such construction of the switch and its mechanism that requires minimum energy for switching and is also construed in a simple and price efficient way.
  • a switch mechanism designed by means of a toothed wheel according to the patent document EP 1024511 does not allow to switch large loads, since the forces needed for switching would cause too much friction.
  • Another solution is a switch mechanism based on the principle of a heart- shaped anchorage according to patent documents WO0186682 and EP1901327.
  • a drawback of this solution is that the switching off is effected at the second step, which means that the switch switches off only when the coil is without voltage or when the button is released in case the switch is switched manually.
  • a rocker arm mechanism of the patents EP0641000 and EP0641003 does not include switching of contacts by way of a contact bridge.
  • the bistable switch with the bistable mechanism of the invention solves requirements for an energy-saving mechanism that simultaneously provides for coupling of contacts intended for large loads in a way that a spring of a rocker arm 6 is fastened onto a lever 1 and a rocker arm 3, wherein bridges 4 and 5 are fastened to the latter symmetrically to the axis of rotation of the rocker arm 3.
  • Figure 3 bistable switch of the invention viewed from the right side and in cross-section;
  • Figure 4 schematic view of the mechanism of the bistable switch of the invention for a variant with one closing and one opening contact
  • Figure 5 schematic view of the mechanism of the bistable switch of the invention for a variant with two closing contacts in open state
  • Figure 6 schematic view of the mechanism of the bistable switch of the invention for a variant with two closing contacts in closed state.
  • the bistable switch with the bistable mechanism of the invention comprises a rocker arm 3 centrally pivoted in the switch housing and having a plug 11 , onto which a spring 6 of the rocker arm 3 is fastened.
  • a lever 1 is fastened within the housing and reaches with a plug 19 through an oblong groove in the rocker arm 3.
  • the lever 1 serves as a position indicator, a button for manual coupling of contacts 13, 15 and a holder for fastening the spring 6 of the rocker arm 3.
  • the spring 6 is fastened by means of a plug 7 for constructions with one opening and one closing contact and with a plug 8 for constructions with two closing contacts.
  • the force needed for coupling of contacts or contact springs is herewith optimized.
  • a bridge 5 serving as a holder of an opening contact bridge 14 and a contact spring 18 is fastened with an oblong groove onto a plug 12 positioned on the rocker arm 3 symmetrically to the axis of rotation of the rocker arm 3 with respect to the plug 10, onto which the bridge 4 is fastened, wherein the bridge 4 serves as a holder of a closing contact bridge 13 and a contact spring 17.
  • This type of fastening requires a smaller number of needed contacts 16, 15.
  • two bridges 4 are fastened onto the rocker arm 3, namely one onto the plug 10 and one on the second side of the rocker arm onto a plug 20 arranged in the same position.
  • Switch-over energy is ensured by an electromagnet, a constituent part of which is an anchor 9.
  • the anchor 9 presses against a forcing means 2, which transfers this force to the rocker arm 3.
  • the rocker arm 3 converts the linear movement of the forcing means 2 into a torque that moves the bridges 4 and 5 via plugs 10, 20 and 12.
  • the bistable switch of the invention can also be switched manually.
  • the lever 1 is acted upon and oscillates around the fastening in the housing and drives the rocker arm 3 via plug 19.
  • the rocker arm 3 in turn moves the bridges 4 and 5 via plugs 10, 20 and 12.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Push-Button Switches (AREA)
  • Mechanisms For Operating Contacts (AREA)

Abstract

A bistable switch with a bistable mechanism is carried out in a way that a spring (6) of a rocker arm is fastened onto a lever (1 ) and onto the rocker arm (3) and symmetrically to the axis of rotation of the rocker arm (3) also bridges (4, 5) are fastened onto said rocker arm (3), which allows for switching of the switch with various combinations of contacts with a minimum energy input provided by an electromagnet or an arm in case of manual switching.

Description

BISTABLE SWITCH WITH A BISTABLE MECHANISM
The subject of the invention is a bistable switch with a bistable mechanism, wherein the mechanism and the construction of contacts that provide for the functioning of the fundamental function of a bistable switch, i. e. switching of contacts by means of an electromagnetic drive excited by electric pulses, enables switching of the switch with a minimum energy input. The present invention belongs to class H01 H 51/08 of the international patent classification.
The technical problem satisfactorily solved by the present construction of a bistable switch is such construction of the switch and its mechanism that requires minimum energy for switching and is also construed in a simple and price efficient way.
Known solutions use various techniques and physical principles of switch mechanism operation. A switch mechanism designed by means of a toothed wheel according to the patent document EP 1024511 does not allow to switch large loads, since the forces needed for switching would cause too much friction.
Another solution is a switch mechanism based on the principle of a heart- shaped anchorage according to patent documents WO0186682 and EP1901327. A drawback of this solution is that the switching off is effected at the second step, which means that the switch switches off only when the coil is without voltage or when the button is released in case the switch is switched manually.
A rocker arm mechanism of the patents EP0641000 and EP0641003 does not include switching of contacts by way of a contact bridge.
The bistable switch with the bistable mechanism of the invention solves requirements for an energy-saving mechanism that simultaneously provides for coupling of contacts intended for large loads in a way that a spring of a rocker arm 6 is fastened onto a lever 1 and a rocker arm 3, wherein bridges 4 and 5 are fastened to the latter symmetrically to the axis of rotation of the rocker arm 3.
The invention will be described by way of an embodiment and the drawings representing in:
Figure 1 bistable switch of the invention in cross-section in axonometric projection viewed from the right side; Figure 2 bistable switch of the invention in cross-section in axonometric projection viewed from the left side;
Figure 3 bistable switch of the invention viewed from the right side and in cross-section;
Figure 4 schematic view of the mechanism of the bistable switch of the invention for a variant with one closing and one opening contact; Figure 5 schematic view of the mechanism of the bistable switch of the invention for a variant with two closing contacts in open state;
Figure 6 schematic view of the mechanism of the bistable switch of the invention for a variant with two closing contacts in closed state.
The bistable switch with the bistable mechanism of the invention comprises a rocker arm 3 centrally pivoted in the switch housing and having a plug 11 , onto which a spring 6 of the rocker arm 3 is fastened. A lever 1 is fastened within the housing and reaches with a plug 19 through an oblong groove in the rocker arm 3. The lever 1 serves as a position indicator, a button for manual coupling of contacts 13, 15 and a holder for fastening the spring 6 of the rocker arm 3. The spring 6 is fastened by means of a plug 7 for constructions with one opening and one closing contact and with a plug 8 for constructions with two closing contacts. The force needed for coupling of contacts or contact springs is herewith optimized. A bridge 5 serving as a holder of an opening contact bridge 14 and a contact spring 18 is fastened with an oblong groove onto a plug 12 positioned on the rocker arm 3 symmetrically to the axis of rotation of the rocker arm 3 with respect to the plug 10, onto which the bridge 4 is fastened, wherein the bridge 4 serves as a holder of a closing contact bridge 13 and a contact spring 17. This type of fastening requires a smaller number of needed contacts 16, 15. In case of a construction with two closing contacts two bridges 4 are fastened onto the rocker arm 3, namely one onto the plug 10 and one on the second side of the rocker arm onto a plug 20 arranged in the same position.
Switch-over energy is ensured by an electromagnet, a constituent part of which is an anchor 9. The anchor 9 presses against a forcing means 2, which transfers this force to the rocker arm 3. The rocker arm 3 converts the linear movement of the forcing means 2 into a torque that moves the bridges 4 and 5 via plugs 10, 20 and 12.
The bistable switch of the invention can also be switched manually. In this case the lever 1 is acted upon and oscillates around the fastening in the housing and drives the rocker arm 3 via plug 19. The rocker arm 3 in turn moves the bridges 4 and 5 via plugs 10, 20 and 12.

Claims

1. Bistable switch with a bistable mechanism that uses a mechanism with a rocker arm (3) for its operation,
characterized in that
the fastening of springs (6) of the rocker arm (3) on the lever (1 ) differs in position in dependence of a construction of contacts (13, 15).
2. Bistable switch according to claim 1 ,
characterized in that
the fastening of bridges (4, 5) onto the rocker arm (3) is symmetrical to the axis of rotation of the rocker arm (3).
PCT/SI2011/000033 2011-05-12 2011-06-22 Bistable switch with a bistable mechanism WO2012154131A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SIP-201100165 2011-05-12
SI201100165A SI23747A (en) 2011-05-12 2011-05-12 Bistable switch with bistable mechanism

Publications (1)

Publication Number Publication Date
WO2012154131A1 true WO2012154131A1 (en) 2012-11-15

Family

ID=44654451

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SI2011/000033 WO2012154131A1 (en) 2011-05-12 2011-06-22 Bistable switch with a bistable mechanism

Country Status (2)

Country Link
SI (1) SI23747A (en)
WO (1) WO2012154131A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014196934A1 (en) * 2013-06-06 2014-12-11 NELA razvojni center d.o.o. Bistable mechanism for switching electrical loads

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2246240A (en) * 1988-03-04 1992-01-22 Telemecanique Electrique Switches
EP0641003A1 (en) 1993-08-26 1995-03-01 Schneider Electric Sa Electromagnetic relay with bi-stable contact
EP0641000A1 (en) 1993-08-26 1995-03-01 Schneider Electric Sa Electrical apparatus with breaker, contactor or reversing switch operation
EP1024511A2 (en) 1999-01-30 2000-08-02 Eltako GmbH Schaltgeräte Electro-mechanical switching device
WO2001086682A2 (en) 2000-05-11 2001-11-15 Moeller Gebäudeautomation KG Electromechanical remote switch
EP1901327A1 (en) 2006-09-18 2008-03-19 Legrand France Mechanism with two stable positions and electrical control device comprising same

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2246240A (en) * 1988-03-04 1992-01-22 Telemecanique Electrique Switches
EP0641003A1 (en) 1993-08-26 1995-03-01 Schneider Electric Sa Electromagnetic relay with bi-stable contact
EP0641000A1 (en) 1993-08-26 1995-03-01 Schneider Electric Sa Electrical apparatus with breaker, contactor or reversing switch operation
EP1024511A2 (en) 1999-01-30 2000-08-02 Eltako GmbH Schaltgeräte Electro-mechanical switching device
WO2001086682A2 (en) 2000-05-11 2001-11-15 Moeller Gebäudeautomation KG Electromechanical remote switch
EP1901327A1 (en) 2006-09-18 2008-03-19 Legrand France Mechanism with two stable positions and electrical control device comprising same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014196934A1 (en) * 2013-06-06 2014-12-11 NELA razvojni center d.o.o. Bistable mechanism for switching electrical loads

Also Published As

Publication number Publication date
SI23747A (en) 2012-11-30

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