WO2014196934A1 - Mécanisme bistable pour commuter des charges électriques - Google Patents

Mécanisme bistable pour commuter des charges électriques Download PDF

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Publication number
WO2014196934A1
WO2014196934A1 PCT/SI2013/000036 SI2013000036W WO2014196934A1 WO 2014196934 A1 WO2014196934 A1 WO 2014196934A1 SI 2013000036 W SI2013000036 W SI 2013000036W WO 2014196934 A1 WO2014196934 A1 WO 2014196934A1
Authority
WO
WIPO (PCT)
Prior art keywords
rocker arm
contact
bistable mechanism
switched
switch
Prior art date
Application number
PCT/SI2013/000036
Other languages
English (en)
Inventor
Marko RODE
Original Assignee
NELA razvojni center d.o.o.
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 NELA razvojni center d.o.o. filed Critical NELA razvojni center d.o.o.
Priority to PCT/SI2013/000036 priority Critical patent/WO2014196934A1/fr
Publication of WO2014196934A1 publication Critical patent/WO2014196934A1/fr

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
    • H01H51/082—Contacts alternately opened and closed by successive cycles of energisation and de-energisation of the electromagnet, e.g. by use of a ratchet using rotating ratchet mechanism
    • H01H51/086—Contacts alternately opened and closed by successive cycles of energisation and de-energisation of the electromagnet, e.g. by use of a ratchet using rotating ratchet mechanism with radial ratchet elements
    • H01H51/088—Contacts alternately opened and closed by successive cycles of energisation and de-energisation of the electromagnet, e.g. by use of a ratchet using rotating ratchet mechanism with radial ratchet elements moved alternately in opposite directions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H5/00—Snap-action arrangements, i.e. in which during a single opening operation or a single closing operation energy is first stored and then released to produce or assist the contact movement
    • H01H5/04—Energy stored by deformation of elastic members
    • H01H5/06—Energy stored by deformation of elastic members by compression or extension of coil springs

Definitions

  • the object of the invention is a bistable mechanism for switching electric loads in switching devices, wherein the mechanism and the form of contacts provide for the operation of the fundamental function which is switching of contacts by way of an electromagnetic drive that is excited by electric pulses and allows switching of contacts by minimum energy input.
  • the invention belongs to class H01 H 51/08 of the International Patent Classification.
  • the technical problem that is successfully solved by the present embodiment of a bistable mechanism is such a construction that reduces the energy needed for switching to the minimum, and it is further constructed in a simple and price efficient way.
  • Another solution is a mechanism of a switch based on the principle of a heart-shaped anchorage according to document 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 provided according to patent EP 0641000 and EP 0641003 does not include switching of contacts by way of a contact bridge.
  • the bistable mechanism of the invention solves requirements for an energy-saving mechanism that simultaneously allows for coupling of contacts intended for large loads in a way that a spring of a rocker arm 12 is fastened to a lever 7 and to a rocker arm 6 and on the latter also bridges 4 and 8 are fastened symmetrically to the axis of rotation of the rocker arm 6.
  • Figure 1 bistable mechanism in switched-off mode with a closing and opening contact of the invention in axonometric projection
  • Figure 2 schematic view of the bistable mechanism in switched- off mode with the closing and opening contact of the invention from front side;
  • Figure 3 schematic view of the bistable mechanism in switched- off mode with the closing and opening contact of the invention from a lateral side in cross-section
  • Figure 4 bistable mechanism in switched-on mode with a closing and opening contact of the invention in axonometric projection
  • Figure 5 schematic view of the bistable mechanism in switched- on mode with the closing and opening contact of the invention from front side;
  • Figure 6 schematic view of the bistable mechanism in switched- on mode with the closing and opening contact of the invention from a lateral side in cross-section;
  • Figure 7 bistable mechanism in switched-off mode with opening contacts of the invention in axonometric projection
  • Figure 8 schematic view of the bistable mechanism in switched- off mode with two opening contacts of the invention from front side;
  • Figure 9 schematic view of the bistable mechanism in switched- off mode with two opening contacts of the invention from a lateral side in cross-section;
  • Figure 10 bistable mechanism in switched-on mode with two opening contacts of the invention in axonometric projection
  • Figure 11 schematic view of the bistable mechanism in switched- on mode with two opening contacts of the invention from front side
  • Figure 12 schematic view of the bistable mechanism in switched- on mode with two opening contacts of the invention from a lateral side in cross-section.
  • the bistable mechanism of the invention comprises a rocker arm 6 centrally arranged in a housing of a switch 22 and provided with a circular fastening, on which a guide of a spring 11 is fastened, another guide of the spring 11 is fastened into the circular fastening on a lever 7, and between said two guides of the spring 11 there is inserted a spring 12 ensuring force 14.
  • the lever 7 is fastened on a plug of a housing 21.
  • the lever 7 functions as signalisation of the mode of contacts and as a knob in the case the switch is switched manually. It is connected with the rocker arm 6 via cog wheel that ensures transmission of torque.
  • the opening bridge 4 and the closing bridge 8 are connected to the rocker arm 6 symmetrically to the axis of rotation via cog wheels and a toothed rack.
  • the bridges 4 and 8 are intended to move the contact bridges 3 and compress contact springs 10.
  • the torque of the rocker arm 6 is created by force 14 and an arm a 16; this torque must exceed or be equal to the torque created by force 25 (force 20 reduced by a cosine of the angle a 18) that occurs due to the contact spring 10 being compressed when coming in contact with a housing 13 and an arm b 17.
  • the torque of the rocker arm 6 is created by force 14 and the arm a 16; this torque must exceed or be equal to the torque created by force 19 (force 15 reduced by a cosine of the angle a 18) that occurs due to the contact spring 10 being compressed when the contact bridge 3 is moved closer due to a contact with a fixed contact 5 and the arm b 17.
  • any number of closing and opening contact sites can be assembled in any desired combinations.
  • the condition is that the force 14 created by the spring 12 defines the torque it forms with the arm a 17 and the torque exceeds or is equal to the sum of torques created by the contact sites according to the rules described above.
  • the energy for switch-over is ensured by an electromagnet, of which an anchor 1 is a constituent part.
  • the anchor 1 presses against a pushing element 9, and the latter transfers the force to the rocker arm 6 which converts the linear movement of the pushing element 9 to the torque which moves the bridges 4 and 8 via cog wheels.
  • the bistable mechanism of the invention can also be switched manually.
  • the lever 7 is acted upon and it oscillates around the fastening in the housing 13 and drives the rocker arm 6 via a cog wheel pair, and the rocker arm 6 then moves the bridges 4 and 5 by way of cog wheels and the toothed rack.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)

Abstract

L'invention porte sur un mécanisme bistable qui comprend un ressort (12) qui est fixé à un levier (7) et un culbuteur (6) assurant ainsi un couple maximal. Des ponts (4, 8) sont fixés au culbuteur (6) de manière symétrique à l'axe de rotation du culbuteur (6), et un ressort de contact (10) est comprimé après ouverture et fermeture de commutateur, ce qui rend possible le fait que le commutateur est commuté au moyen de diverses combinaisons de contacts avec une entrée d'énergie minimale qui est fournie par un électroaimant ou une poignée dans le cas d'une commutation manuelle.
PCT/SI2013/000036 2013-06-06 2013-06-06 Mécanisme bistable pour commuter des charges électriques WO2014196934A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/SI2013/000036 WO2014196934A1 (fr) 2013-06-06 2013-06-06 Mécanisme bistable pour commuter des charges électriques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SI2013/000036 WO2014196934A1 (fr) 2013-06-06 2013-06-06 Mécanisme bistable pour commuter des charges électriques

Publications (1)

Publication Number Publication Date
WO2014196934A1 true WO2014196934A1 (fr) 2014-12-11

Family

ID=49304298

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SI2013/000036 WO2014196934A1 (fr) 2013-06-06 2013-06-06 Mécanisme bistable pour commuter des charges électriques

Country Status (1)

Country Link
WO (1) WO2014196934A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111024385A (zh) * 2019-12-25 2020-04-17 航天科工智能机器人有限责任公司 一种谐波减速器最大负载测试装置

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2830149A (en) * 1956-09-04 1958-04-08 Joseph D Winans Over-center relay switch
EP0271366A1 (fr) * 1986-11-25 1988-06-15 Gerard Mang S.A. Télérupteur comportant un inverseur auxiliaire sur son circuit de commande
EP0641000A1 (fr) 1993-08-26 1995-03-01 Schneider Electric Sa Appareil électrique fonctionnant en rupteur, en contacteur ou en inverseur
EP0641003A1 (fr) 1993-08-26 1995-03-01 Schneider Electric Sa Relais électromagnétique à contact bistable
EP0827172A1 (fr) * 1996-09-02 1998-03-04 Schneider Electric Sa Dispositif d'actionnement de contacts électriques
EP1024511A2 (fr) 1999-01-30 2000-08-02 Eltako GmbH Schaltgeräte Appareil de commutation electromecanique
WO2001086682A2 (fr) 2000-05-11 2001-11-15 Moeller Gebäudeautomation KG Interrupteur electromecanique commande a distance
EP1901327A1 (fr) 2006-09-18 2008-03-19 Legrand France Mécanisme à deux positions stables et dispositif de commande électrique le comportant
WO2012154131A1 (fr) * 2011-05-12 2012-11-15 ISKRA MIS, d.d. Commutateur bistable doté d'un mécanisme bistable

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2830149A (en) * 1956-09-04 1958-04-08 Joseph D Winans Over-center relay switch
EP0271366A1 (fr) * 1986-11-25 1988-06-15 Gerard Mang S.A. Télérupteur comportant un inverseur auxiliaire sur son circuit de commande
EP0641000A1 (fr) 1993-08-26 1995-03-01 Schneider Electric Sa Appareil électrique fonctionnant en rupteur, en contacteur ou en inverseur
EP0641003A1 (fr) 1993-08-26 1995-03-01 Schneider Electric Sa Relais électromagnétique à contact bistable
EP0827172A1 (fr) * 1996-09-02 1998-03-04 Schneider Electric Sa Dispositif d'actionnement de contacts électriques
EP1024511A2 (fr) 1999-01-30 2000-08-02 Eltako GmbH Schaltgeräte Appareil de commutation electromecanique
WO2001086682A2 (fr) 2000-05-11 2001-11-15 Moeller Gebäudeautomation KG Interrupteur electromecanique commande a distance
EP1901327A1 (fr) 2006-09-18 2008-03-19 Legrand France Mécanisme à deux positions stables et dispositif de commande électrique le comportant
WO2012154131A1 (fr) * 2011-05-12 2012-11-15 ISKRA MIS, d.d. Commutateur bistable doté d'un mécanisme bistable

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111024385A (zh) * 2019-12-25 2020-04-17 航天科工智能机器人有限责任公司 一种谐波减速器最大负载测试装置

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