WO2006085829A1 - Interrupteur electrique automatique - Google Patents

Interrupteur electrique automatique Download PDF

Info

Publication number
WO2006085829A1
WO2006085829A1 PCT/SI2005/000004 SI2005000004W WO2006085829A1 WO 2006085829 A1 WO2006085829 A1 WO 2006085829A1 SI 2005000004 W SI2005000004 W SI 2005000004W WO 2006085829 A1 WO2006085829 A1 WO 2006085829A1
Authority
WO
WIPO (PCT)
Prior art keywords
converter
contact
magnet yoke
switch
anchor
Prior art date
Application number
PCT/SI2005/000004
Other languages
English (en)
Inventor
Matija Strehar
Miran Dolinsek
Domen Janc
Original Assignee
Eti Elektroelement 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 Eti Elektroelement D.D. filed Critical Eti Elektroelement D.D.
Priority to PCT/SI2005/000004 priority Critical patent/WO2006085829A1/fr
Publication of WO2006085829A1 publication Critical patent/WO2006085829A1/fr

Links

Classifications

    • 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
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/34—Electromagnetic mechanisms having two or more armatures controlled by a common winding
    • 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
    • H01H71/10—Operating or release mechanisms
    • H01H71/1081—Modifications for selective or back-up protection; Correlation between feeder and branch circuit breaker
    • 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
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/14—Electrothermal mechanisms
    • H01H71/16—Electrothermal mechanisms with bimetal element
    • H01H71/164—Heating elements
    • 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
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/40—Combined electrothermal and electromagnetic mechanisms

Definitions

  • the subject of the invention is a low-loss electric automatic switch for the protection of electric current consumer devices and electric circuits.
  • the switch of the invention is preferably intended as a switch corresponding to size 1 according to DESf 43880 and has a module width 18 mm; it has low own power loss and assures selectivity.
  • the technical problem solved by the invention is how to conceive such low-loss electric automatic switch for the protection of electric current consumer devices and electric circuits that will also be adequate for large-volume production in the sense that the structure itself would be such to define when und under what switch load the switch will turn off the circuit, whereby the switch should be responsive to said parameters within a relatively small tolerance field.
  • thermo-mechanical converter that uses circuit heat to heat a thermo-mechanical converter at a certain operation and in case of failure at an increased current the protect switch device interrupts the protected electric circuit.
  • a characteristic of all these devices lies in that over the period of protection the selected circuits consume approximately 1 %o of the power needed for protection.
  • the inventor is furthermore acquainted with a switch, in which a thermo- mechanical converter is replaced by a megneto-thermic converter.
  • a thermo- mechanical converter is replaced by a megneto-thermic converter.
  • Such variant substantially contributes to a lower consumption of the switch and consequently to a lower increase of the environmental temperature.
  • the solution is conceived in the following way: one anchor attracted by a coil is adjustable by an adjusting screw in order to assure the nominal parameters of the switch to be kept within the expected tolerance field. It could cause a technological and finally a price problem in large- volume production.
  • the goal of the invention was therefore to conceive substantially the same switch with a magneto-thermic converter and its favourable properties as to low own consumption and essentially low harmful heating of the environment and insensitivity to current surges, and yet such switch that will be adequate for large- volume production without a need to determine parameters for each switch separately.
  • an electric automatic switch of the invention the essential characteristic of which lies in that a magneto-thermic converter is conceived of two anchors aligned on the same axle, said anchors having various characterisics. Both anchors act on the same bar depending on the status of the current in the protected circuit and its characteristic. Each anchor determines a certain axial movement of the bar at various currents and their duration. The bar acts on a three-position switch defining various currents within the switch at various currents. The coil in each type of the switch is implemented with respect to the foreseen possible electric currents within a secured conduit and switch-off times. Dimensioning of coils in large- volume production achieves nominal parameters of the switch in acceptable tolerance. Calibration of each product separately is superfluous.
  • Fig. 1 shows an electric wiring diagram of the switch of the invention with an indication of three positions of the converter
  • Fig. 2 shows a switch of the invention in longitudinal cross-section and in the mode when the circuit operates without interruptions and when the three- position converter on Fig. 1 is in position 2;
  • Fig. 3 shows a switch of the invention in longitudinal cross-section and in the mode when the direct section of the protected circuit in the switch is interrupted due to a trouble and by preserving a parallel circuit through a bimetal and the three-position converter on Fig. 1 is in position 3;
  • Fig. 4 shows a switch of the invention in longitudinal cross-section and in the mode of simultaneous interruption of direct section of protected circuit in a switch and parallel circuit due to a moment surge of potent electric current in protected circuit and when the three-switch converter on Fig. 1 is in position 3;
  • Fig. 5 shows a switch of the invention in longitudinal cross-section and in the mode of manual switch-off by a simultaneous interruption of direct section of the protected circuit in the switch and parallel circuit due to the appearance of high electric current over a long period of time and when the three-position switch on Fig. 1 is in position 3 and the manual lever in switch-off mode.
  • the electric automatic switch consists of an electrically nonconductive housing 1, preferably of any of standard housings allowing an arrangement of switches in a battery on the collecting bus, which is not shown on figures, or in another way.
  • the housing 1 houses a magnetic yoke 4, preferably in the shape of a square U, in which a leading bushing 5 is positioned between both free ends of the magnet yoke 4.
  • a coil 6 is positioned on the bushing 5.
  • At one end of the bushing 5 there is a core 7, and at the opposite end of it there is a large anchor 8 positioned in a way to move along the axle. Between the core 7 and the large anchor 8 and within the large anchor 8 there is a small anchor 9 that moves along its axle.
  • a bar 10 that moves along its axle and leans at one end on the small anchor and at the other freely protrudes from the magnet yoke 4.
  • first contact 11 electrically connected with a coil 6 and simultaneously with a resistor 12.
  • the resistor 12 is preferably conceived as electrically conductive, several times as a meander twisted ribbon to reach the expected resistance.
  • Means 13 are electrically connected to the resistor 12, said means deforming their shape when an increased current flows through them.
  • the means 13 are preferably a bimetal, they can also be a memory element and the like.
  • the means 13 are preferably shaped as the letter U, so that one free end of one leg is electrically connected with the resistor 12 as already mentioned and another free end of the second leg is connected with the magnet yoke 4 via a current line.
  • the housing comprises preferably near the magnet yoke 4 and at the opposite side of the resistor 12 an arc bus 14 with a fire extinguishing chamber 14a, so that the arc bus 14 is electrically connected with the clamp 2. Between the bus 14 and the chamber 14a there is an electrically nonconductive gap during regular operation of the switch.
  • the converter 18, as already mentioned, is fastened with a spring 19 engaging with the converter 18 in the area of the contact 22, in the area of the opposite end, the converter 18 is pivoted in a swing hinge 21 preferably conceived as a bar element having hinge extensions, of which one is intended for fitting into the housing 1 and another into the converter 18.
  • One of the parts of the switch mechanism contains a tooth abutting the transversal leg of the means 13, preferably bimetal. When bent, it turns the means 13 at an increased electric current flowing through it, presses on the tooth 25 thus releasing the entire support 16 to swivel around its axle 17.
  • the support 16 is further linked via a lever 26 with a manual, freely rotatable knob 27, which can be used to manualy switch the switch off and to return the switch to the original operating mode, after the switch has been automatically switched off by the circuit due to a long-term increase of current in the protected circuit.
  • the electric automatic switch operates as follows: in the mode without troubles (as shown by the end position on Fig. 1, position A of the converter 18 and Fig. 2) the main circuit is closed to the connection clamp 2 via electrically conductive means 24, the converter 18, which is in such position that simultaneously both pairs of contacts 15, 22 and 11, 23 are closed, whereby the main circuit flows from the contact 23 to the coil 6, the latter being connected with the clamp 3, wherefrom the protected circuit or a group of circuits with consumer devices continues.
  • the parallelly connected second circuit is also closed during regular operation of the protected circuit, whereby said second circuit is connected to the main circuit in an electrically discharging way on clamps 22 and 15 linked to the magnet yoke 4 and the latter to one end of the means 13, which is with the second end linked to the resistor 12, and the latter series connected to the contact 11 and simultaneously to the coil 6, connected with its other end to the clamp 3.
  • the current flowing through the main circuit causes an essentially lower power loss in the switch than known solutions.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermally Actuated Switches (AREA)

Abstract

Interrupteur électrique automatique à faibles pertes pour la protection d'appareils consommateurs de courant électrique et de circuits électriques, de préférence correspondant à la taille 1 selon la norme DIN 43880 et présentant une largeur de module de 18 mm en vue de son installation comme interrupteur-sélecteur principal. L'interrupteur selon l'invention comprend une culasse magnétique (4), dans laquelle une traversée principale (5) est positionnée entre les extrémités libres de la culasse magnétique (4), tandis qu'une bobine (6) est disposée sur la traversée (5). A une extrémité de la traversée (5) se trouve un noyau (7) et à son extrémité opposée se trouve une grande ancre (8) ; entre le noyau (7) et la grande ancre (8), et à l'intérieur de celle-ci, se trouve une petite ancre (9), tandis que dans le noyau (7) se trouve une barre (10) mobile le long de son axe, s'appuyant à une de ses extrémités contre la petite ancre (9) et émergeant librement de la culasse magnétique (4) à l'autre extrémité. En outre, dans la zone comprise entre la pince (2) et la barre (10) se trouve un support (16), au moyen duquel le sélecteur à trois positions (18) est fixé via deux ressorts (19) et (20) sur une charnière basculante (21) ; et sur la culasse magnétique (4), à proximité du bus d'arc (13) se trouve un autre contact (15), électriquement relié à la culasse magnétique (4).
PCT/SI2005/000004 2005-02-09 2005-02-09 Interrupteur electrique automatique WO2006085829A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/SI2005/000004 WO2006085829A1 (fr) 2005-02-09 2005-02-09 Interrupteur electrique automatique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SI2005/000004 WO2006085829A1 (fr) 2005-02-09 2005-02-09 Interrupteur electrique automatique

Publications (1)

Publication Number Publication Date
WO2006085829A1 true WO2006085829A1 (fr) 2006-08-17

Family

ID=34961411

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SI2005/000004 WO2006085829A1 (fr) 2005-02-09 2005-02-09 Interrupteur electrique automatique

Country Status (1)

Country Link
WO (1) WO2006085829A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009082358A1 (fr) * 2007-12-24 2009-07-02 Eti Elektroelement D.D. Commutateur automatique électrique
EP2330611A1 (fr) * 2009-12-04 2011-06-08 HAGER ELECTRO S.A.S. (société par Actions Simplifiée) Disjoncteur sélectif
WO2012140145A1 (fr) * 2011-04-13 2012-10-18 Jozef Smrkolj Dispositif de contact et sa commande pour disjoncteur
WO2014158110A1 (fr) 2013-03-25 2014-10-02 Koster Norbert H L Disjoncteur thermo-commandé
DE102013005171A1 (de) * 2013-03-25 2014-10-30 Serkan Er Temperaturgesteuerter Leitungsschutzschalter

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191517690A (en) * 1914-12-29 1916-03-16 British Westinghouse Electric Improvements in Electrically-controlled Electric Circuit Breakers.
DE458392C (de) * 1924-11-08 1928-04-11 Stotz G M B H Abt Der Brown Bo Elektromagnetischer UEberstromschalter
DE474087C (de) * 1929-03-27 Siemens Schuckertwerke Akt Ges Einrichtung zum Betaetigen von Selbstschaltern
DE7111834U (fr) * 1971-03-29 1971-06-16 Bbc Ag
DE4118377A1 (de) * 1991-06-05 1992-12-10 Hager Electro Gmbh Leitungs- und/oder geraeteschutzschalter

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE474087C (de) * 1929-03-27 Siemens Schuckertwerke Akt Ges Einrichtung zum Betaetigen von Selbstschaltern
GB191517690A (en) * 1914-12-29 1916-03-16 British Westinghouse Electric Improvements in Electrically-controlled Electric Circuit Breakers.
DE458392C (de) * 1924-11-08 1928-04-11 Stotz G M B H Abt Der Brown Bo Elektromagnetischer UEberstromschalter
DE7111834U (fr) * 1971-03-29 1971-06-16 Bbc Ag
DE4118377A1 (de) * 1991-06-05 1992-12-10 Hager Electro Gmbh Leitungs- und/oder geraeteschutzschalter

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009082358A1 (fr) * 2007-12-24 2009-07-02 Eti Elektroelement D.D. Commutateur automatique électrique
EP2330611A1 (fr) * 2009-12-04 2011-06-08 HAGER ELECTRO S.A.S. (société par Actions Simplifiée) Disjoncteur sélectif
WO2012140145A1 (fr) * 2011-04-13 2012-10-18 Jozef Smrkolj Dispositif de contact et sa commande pour disjoncteur
WO2014158110A1 (fr) 2013-03-25 2014-10-02 Koster Norbert H L Disjoncteur thermo-commandé
DE102013005171A1 (de) * 2013-03-25 2014-10-30 Serkan Er Temperaturgesteuerter Leitungsschutzschalter
DE102013005171B4 (de) 2013-03-25 2022-10-13 Serkan Er Vorrichtung, umfassend einen Wärmeflussklemmkontakt und eine wärmegesteuerte Funktionseinheit für einen temperaturgesteuerten Leitungsschutzschalter, sowie ein entsprechender Leitungsschutzschalter

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