WO1986001936A1 - Boitier de commutation pour un interrupteur (de protection) du moteur et dispositif de declenchement pour installation dans des appareils electriques - Google Patents

Boitier de commutation pour un interrupteur (de protection) du moteur et dispositif de declenchement pour installation dans des appareils electriques Download PDF

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Publication number
WO1986001936A1
WO1986001936A1 PCT/EP1984/000276 EP8400276W WO8601936A1 WO 1986001936 A1 WO1986001936 A1 WO 1986001936A1 EP 8400276 W EP8400276 W EP 8400276W WO 8601936 A1 WO8601936 A1 WO 8601936A1
Authority
WO
WIPO (PCT)
Prior art keywords
switch
housing
motor
button
switch box
Prior art date
Application number
PCT/EP1984/000276
Other languages
German (de)
English (en)
Inventor
Peter Flohr
Jürgen Herr
Original Assignee
Heinrich Kopp Gmbh & Co. Kg
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 Heinrich Kopp Gmbh & Co. Kg filed Critical Heinrich Kopp Gmbh & Co. Kg
Priority to EP84110803A priority Critical patent/EP0174382B1/fr
Priority to PCT/EP1984/000276 priority patent/WO1986001936A1/fr
Publication of WO1986001936A1 publication Critical patent/WO1986001936A1/fr
Priority to NO861842A priority patent/NO861842L/no
Priority to DK216886A priority patent/DK216886A/da

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/12—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by voltage falling below a predetermined value, e.g. for no-volt protection

Definitions

  • Variable switch box for motor (contactor) switches and undervoltage release for installation in power tools or the like is
  • the invention relates to a variable switch box for installation in power tools or similar devices in order to incorporate as a control element the conventional motor switch or the motor protection switch provided with a thermal release for protection against overload and to assign an arrangement for undervoltage release to one of these switching elements as required to be able to or to retrofit or retrofit the existing switch box.
  • While the motor (protective) switch is the actual actuating element, in particular for power tools used by hand, it proves to be useful here and in comparable applications to also take suitable precautions to prevent it after a power failure or a line defect, an electrical device of this type which was accidentally left on, such as a hand drill or an electric lawnmower that starts up again automatically and thereby causes injuries and considerable damage to property.
  • the invention is based on the object of developing a control box as an operating element for installation in existing power tools or devices, which, according to the arrangement and function, enables a conventional motor switch or a motor protection switch to be built in a simple manner with one device to supplement and combine to trigger undervoltage.
  • the (different) equipment of the switch box should be realizable from the outset, retrospectively or alternatively in the manner of a modular system, and essentially using existing or easily retrofittable devices.
  • the invention forms a switch box for power tools or the like.
  • the actuating buttons guided parallel to one another within the insulating housing of the switch box are rotatably connected at the ends of their pressure pins via an L-shaped lever member which on the side of the switch button for the purpose of force conclusive contact with the compression spring-loaded actuation button of the motor (protective) switch relative to a housing stop via a switching cam and a locking cam which is rigidly angled laterally and interacts with a housing projection, for this purpose on the side of the switch-off button by means of a swivel capable angled coupling piece movably engages in the folding armature of the electromagnet for undervoltage release, and in the switched-off position is additionally pressed against a further housing stop by a release spring supported on the inner wall of the housing.
  • the design of a multi-pole motor protection switch known from DE-PS 19 09 555 with thermal overcurrent tripping, without its switching latching and plague setting device can be the electromagnetic triggering element that is fed from the AC supply network via a rectifier bridge circuit Undervoltage monitoring are associated and this combination is switched on and off manually by means of a functional coupling by means of the latching mechanism contained in the switch box by means of two actuating buttons, and is electrically triggered and secured.
  • the combination can also be made with a simple motor switch instead of the motor protection switch; viewed in itself, it is even operational without the installation of the arrangement for undervoltage release.
  • the switch box according to the invention can be varied and / or supplemented, as it were, in a modular manner, in exchange for the previous control element of an electrical device, as required or expedient.
  • claim 1 relates to the specific design of the lever member as a central element of the actuating and latching mechanism, claim 3 to the spatial-constructive design of the entire switch box, claim 4 to useful measures for dust and splash water protection of the construction, and the claim 5 to the mounting arrangements on the switch box for safe
  • Pig. 1 the circuit diagram of the (protective) switching and triggering elements completely contained in a switch box in a simplified form;
  • Pig. 2 equipped with a thermally protected motor protection switch and an undervoltage release
  • the power supply to the device-side electric motor is switched to two poles by actuating the motor protection switch 1 and the device is at the same time thermally secured against overload.
  • the two switching paths are bridged at their terminals against one another by the interference suppression capacitor 2 and on the other hand by the rectifier arrangement 3 in a single-phase bridge circuit for excitation or supply of the electromagnetic release element 4 for the mains voltage control.
  • the motor protection switch 1 and the trigger element 4 interact in mutual coupling via an actuating and latching mechanism 5, which is simply indicated in the circuit diagram by a dashed active connection line.
  • the switch box consists of an insulating material housing 6 open on one side in the form of a parallelepiped, on the operating side of which the broad actuation handles as the switch button 7 and the switch button 8 are adjustably embedded and guided in housing sockets within a trough-shaped front plate , And which is provided on its lower side in front of a strain relief device 9 with insertion openings for the connecting cable as for the motor cable.
  • the actuating and latching mechanism 5 interacting with the puncture elements 1 and 4 mentioned essentially consists of the elongated L-shaped lever member 11.
  • this lever member 11 on the side of the switch 7 for frictional engagement on the compression spring-loaded actuation button of the motor protection switch 1 has a switch cam 12, by means of which the lever member 11 in the switch-off position is pressed upwards against a housing stop 13 provided below the switch button 7.
  • the lever member 11 adjacent to the laterally offset has cam to the pivot bearing point for the power switch 7 arranged Weg ⁇ 12 in the other direction offset an angled and 90 ° upward rigidly alongside with a grinding or alternative profile provided latching-in dogs 14 'which in the course of the switch-on actuation under certain conditions is able to hold in a form-fitting manner on the edge of a housing projection 15 in order to hold the motor protection switch 1 in the switch-on position after the switch button 7 has been manually relieved.
  • the coupling piece 16 which swivels downward from a bend to the right of the pivot bearing point for the push pin of the switch-off button 8, is provided, which engages in the hinged armature 10 of the release member 4 by means of a T-bar.
  • the declining spring 17 presses the lever member 11 loaded by it into the switch-off position defined by the housing stop 13 'and, at the same time, the hinged armature 10 against its own weight into the release position, this possibly facing the yoke leg of the electromagnet (4) can attach to a special housing stop (13 M ).
  • the latching cam 14 can then, and only then, hold on to the edge of the housing projection 15 in a form-fitting manner if the latter relieves mechanically of the coupling piece 16 of the lever member 11 and consequently prepares for this by reducing the air gap Magnetic yoke of the electromagnet 4 tilted hinged armature 10 is tightened and held by its excitation on the network side.
  • the hinged armature 10 is unable or no longer able to hold onto the magnetic yoke of the electromagnet 4, whereupon the unlatching spring 17 again acts
  • the switch-off button 8 gives the lever member 11, in support of the forces of the tensioned unlatching spring 17 and the return spring of the motor protection switch 1 and against the holding force of the electromagnet 4, a resulting torque which removes its positive locking and the overall arrangement this way can return to the off position.
  • the excitation of the release member 4 causes its hinged armature 10 to hold onto the magnetic yoke and thereby compensate for the influence of the unlatching spring 17, so that when the switch 7 previously pressed in by hand is released under the pressure of the motor protection switch 1 the mechanism (5) latches the entire assembly in the on position.
  • the switch-off button 8 mechanically coupled to the switch-on button 7 has also noticeably emerged from the front of the housing 6 of the switch box and is therefore available if required Ready to turn off.
  • the insulating material housing 6, which is open on one side, can be closed dust-tight after the assembly, wiring and storage of the interference-suppression capacitor 2, which is only indicated by dash-dotted lines, by a cover, which is also not shown in the drawing, of which Groove edge several tabs are angled to lock elastically with corresponding approaches of the side walls of the housing 6.
  • the two actuating buttons 7 and 8 are arranged to be largely splash-proof within recesses of the front plate by nesting overlap of the guide bushes for their push pins on the part of the button edge drawn in downwards.
  • the switch box has its holder below one

Landscapes

  • Switch Cases, Indication, And Locking (AREA)

Abstract

Afin de protéger un outil électrique, par exemple une perceuse portative, tondeuse etc, contre un redémarrage éventuel après une interruption du courant ou d'un défaut de ligne, du fait qu'il n'a pas été éteint à l'interrupteur, l'unité de commande est en forme de boîtier de commutation que l'on peut ajouter à l'appareil, dans lequel l'interrupteur habituel (1) (de protection) du moteur peut être incorporé comme un module, avec le composant de déclenchement électromagnétique (4) d'un circuit pour contrôler la tension du réseau; le but visé est de pouvoir allumer ou éteindre manuellement, à l'aide d'un mécanisme de verrouillage (11-17), l'appareil électrique concerné au moyen de deux boutons de commande (7, 8) disposés sur la partie avant, ainsi que pour protéger immédiatement l'appareil du point de vue électrique contre toute surcharge ou tout fonctionnement intempestif, après une interruption du courant d'alimentation du réseau.
PCT/EP1984/000276 1984-09-11 1984-09-11 Boitier de commutation pour un interrupteur (de protection) du moteur et dispositif de declenchement pour installation dans des appareils electriques WO1986001936A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP84110803A EP0174382B1 (fr) 1984-09-11 1984-09-11 Boîtier de commutation variable pour disjoncteur (de protection) de moteur et à déclencheur par manque de tension, pour montage dans des outils électriques ou appareils similaires
PCT/EP1984/000276 WO1986001936A1 (fr) 1984-09-11 1984-09-11 Boitier de commutation pour un interrupteur (de protection) du moteur et dispositif de declenchement pour installation dans des appareils electriques
NO861842A NO861842L (no) 1984-09-11 1986-05-07 Variabel bryterboks for en motor(beskyttelse)bryter og underspenningstrigger for innbygning i et elektrisk verktoey eller lignende.
DK216886A DK216886A (da) 1984-09-11 1986-05-09 Variabel afbryderdaase til motorskab og underspaendingsudloeser til indbygning i elektrovaerktoejer og lignende indretninger

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP84110803A EP0174382B1 (fr) 1984-09-11 1984-09-11 Boîtier de commutation variable pour disjoncteur (de protection) de moteur et à déclencheur par manque de tension, pour montage dans des outils électriques ou appareils similaires
PCT/EP1984/000276 WO1986001936A1 (fr) 1984-09-11 1984-09-11 Boitier de commutation pour un interrupteur (de protection) du moteur et dispositif de declenchement pour installation dans des appareils electriques

Publications (1)

Publication Number Publication Date
WO1986001936A1 true WO1986001936A1 (fr) 1986-03-27

Family

ID=26069343

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1984/000276 WO1986001936A1 (fr) 1984-09-11 1984-09-11 Boitier de commutation pour un interrupteur (de protection) du moteur et dispositif de declenchement pour installation dans des appareils electriques

Country Status (3)

Country Link
EP (1) EP0174382B1 (fr)
DK (1) DK216886A (fr)
WO (1) WO1986001936A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10354822B2 (en) 2013-10-22 2019-07-16 Marquardt Verwaltungs-Gmbh Electrical switch, in particular a switch for an electrical power tool

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3937546A1 (de) * 1989-11-10 1991-05-16 Kopp Gmbh & Co Kg Heinrich Mobiles schutzschaltgeraet mit differenzstrom- und unterspannungsausloesung
CH680174A5 (fr) * 1990-05-23 1992-06-30 Weber Ag
DE4311958C2 (de) * 1993-04-10 1995-04-20 Felten & Guilleaume Energie Elektromagnetischer Schaltmechanismus für elektrische Schutzschaltgeräte
GB9406944D0 (en) * 1994-04-08 1994-06-01 Gen Electric Snap in pushbuttons
US8087977B2 (en) 2005-05-13 2012-01-03 Black & Decker Inc. Angle grinder
US10818450B2 (en) 2017-06-14 2020-10-27 Black & Decker Inc. Paddle switch

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3315190A (en) * 1965-12-01 1967-04-18 Furnas Electric Co Manual contactor with low voltage release
DE1909555A1 (de) * 1969-02-26 1970-09-03 Kopp Fa Heinrich Elektrischer Drucktaster mit thermischer UEberstromausloesung
FR2179766A1 (fr) * 1972-04-12 1973-11-23 Asea Ab

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3315190A (en) * 1965-12-01 1967-04-18 Furnas Electric Co Manual contactor with low voltage release
DE1909555A1 (de) * 1969-02-26 1970-09-03 Kopp Fa Heinrich Elektrischer Drucktaster mit thermischer UEberstromausloesung
FR2179766A1 (fr) * 1972-04-12 1973-11-23 Asea Ab

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10354822B2 (en) 2013-10-22 2019-07-16 Marquardt Verwaltungs-Gmbh Electrical switch, in particular a switch for an electrical power tool

Also Published As

Publication number Publication date
DK216886D0 (da) 1986-05-09
EP0174382A1 (fr) 1986-03-19
EP0174382B1 (fr) 1988-08-24
DK216886A (da) 1986-05-09

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