EP0222181B1 - Disjoncteur de surintensité - Google Patents

Disjoncteur de surintensité Download PDF

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Publication number
EP0222181B1
EP0222181B1 EP86114120A EP86114120A EP0222181B1 EP 0222181 B1 EP0222181 B1 EP 0222181B1 EP 86114120 A EP86114120 A EP 86114120A EP 86114120 A EP86114120 A EP 86114120A EP 0222181 B1 EP0222181 B1 EP 0222181B1
Authority
EP
European Patent Office
Prior art keywords
push button
circuit breaker
casing
switch
breaker according
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.)
Expired
Application number
EP86114120A
Other languages
German (de)
English (en)
Other versions
EP0222181A1 (fr
Inventor
Fritz Krasser
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.)
Ellenberger and Poensgen GmbH
Original Assignee
Ellenberger and Poensgen 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 Ellenberger and Poensgen GmbH filed Critical Ellenberger and Poensgen GmbH
Publication of EP0222181A1 publication Critical patent/EP0222181A1/fr
Application granted granted Critical
Publication of EP0222181B1 publication Critical patent/EP0222181B1/fr
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/22—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having electrothermal release and no other automatic release
    • H01H73/30—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having electrothermal release and no other automatic release reset by push-button, pull-knob or slide
    • H01H73/306—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having electrothermal release and no other automatic release reset by push-button, pull-knob or slide the push-button supporting pivotally a combined contact-latch lever

Definitions

  • the known overcurrent protective switch of the type mentioned is characterized by a very narrow design, so that a large number of such switches can be accommodated in a space-saving manner.
  • the manually operable device for deflecting the bimetal is formed by a second push button, which is displaceably mounted in the switch housing parallel to the push button causing the switch-on and acted upon by a spring pushing it back into its inactive position.
  • This arrangement of a second push button for manually switching off the switch is technically and also spatially complex.
  • the invention has for its object to design a switch of the type mentioned without sacrificing its functions so that it requires less space for accommodating its functional parts and can be manufactured with less manufacturing and material costs.
  • This object is achieved by the features listed in the characterizing part of claim 1. Due to the invention it is no longer necessary to arrange a second push button for deflecting the bimetal and thereby releasing the disengaging movement. Rather, this second push button in the form of the deflection button is a component of the single push button of the switch which is used for switching on. The length of the displacement path of the push button has only been increased somewhat in comparison to the known switch mentioned at the outset. The push button can be pushed a little deeper into the switch housing than is necessary for the function of the known switch mentioned at the beginning.
  • the bimetal is deflected.
  • this deflection has no effect on the contact bridge. If, on the other hand, the push button is pressed completely when the switch is switched on, the deflection of the bimetal that is caused by its deflection button causes the contact bridge to be released by the bimetal and thus triggers the automatic switch-off under the pressure of the spring.
  • the characterizing features of claim 2 result in a particularly space-saving design of the switch according to the invention.
  • it is suitable for installation in a known manner in double-D-shaped cutouts in switchboards or the like. Instead of conventional fuse links. Thanks to its features of the invention, the switch does not require more space than conventional fuses, even in the installation depth, and yet it has double insulation in the actuation area and the necessary distances from the live parts.
  • the characteristic feature of claim 5 ensures particularly good insulation of the live parts from the push button accessible from the handling contact.
  • the guide piece also fulfills a multiple function through the labeling features of claims 6 and 7.
  • the push-button assembly can be pre-assembled with the guide piece in a simple manner for final assembly of the switch in the housing half previously equipped with the bimetal and the connecting contacts. It then only needs to be placed on the other half of the housing and pressed together with the previously fitted housing half. Both housing halves are then clamped together in their final assembly position by the guide piece. Finally, the mutual, definitely non-detachable riveting between the two housing halves can be carried out in a simple manner.
  • the housing of the switch consists of the two housing halves 1, 2 molded from thermoplastic material. Their material is resistant to high temperatures, leakage current and largely flame retardant. It is also provided with great strength, which also offers good bending rigidity for the spring hooks 3 for fastening the device in the installation opening 4 of a control panel 5.
  • the switch can be actuated by a push button 6 protruding from one end of the switch.
  • the push button 6, which is made of insulating material, is firmly connected to the same switching rod 7, the axis 8 of which lies in the central longitudinal plane of the switch.
  • the median longitudinal plane is simultaneous the parting plane (parting line 9) between the two housing halves 1, 2.
  • the switching rod 7 carries at its lower end a flange-like widening 10 as a support for the switching spring 11, which surrounds the switching rod 7 and on the push-button-side end of the contact bridge 12 with its horizontal leg 13 rests.
  • the contact bridge 12 has the shape of an angle lever, the horizontal leg 13 of which is approximately at a right angle to the vertical leg 14.
  • the contact bridge 12 electrically connects the contact piece 15 of the bimetal 16 to the contact connection 17.
  • the bimetal 16 is fastened to the housing by means of a bimetal support 18, which at the same time represents the connection for the direct bimetal heating.
  • the bimetal 16 is also wound with a heating winding 19 for optional indirect heating, which can be applied to the voltage via the heating conductor connection 20.
  • the contact connection 17, the bimetallic support 18 and the heating conductor connection 20 are fastened to the switch housing base 21 opposite the push button side 6, specifically there in insertion slots 22 or in the parting joint between the two housing halves 1, 2.
  • the bimetal carrier 18 or the bimetal 16 is fastened with the fastening screw 23 screwed in from the outside.
  • the bimetal is adjusted in a known manner by the conical end 24 of the adjusting screw 25 which can be screwed in parallel to the fastening screw 23 via the bimetal shoulder 26.
  • the horizontal leg 13 of the contact bridge 12 engages behind or under the contact piece 15 of the bimetal 16 under the pressure of the switching spring 11.
  • the horizontal leg 13 assumes a perpendicular position to the axis 8 of the switching rod 7, because likewise under the pressure of the Switch spring 11 of the vertical leg 14 of the contact bridge 12 abuts with its contact piece 27 on the contact terminal 17 and is prevented from pivoting clockwise.
  • the shift rod 7 is mounted in a longitudinally displaceable manner in a guide piece 28 also made of insulating material.
  • the guide piece 28 is fastened between the contact bridge 12 and the push button 6 on both housing halves 1, 2. It seals off the housing parts 29 containing the live parts (bimetal 16, contact piece, contact bridge 12, contact connection 17) and facing the switch housing bottom 21 from the receiving space of the push button 6 located inside the housing.
  • the guide piece 28 forms the counter bearing for the push button spring 30 which acts on the push button 6 against the pushing direction 31.
  • the guide piece 28 is provided on its side facing the housing base 21 with an inclined surface forming the oblique stop 32.
  • the oblique stop 32 when acted upon by the contact bridge 12 under the influence of the switching spring 11, causes the oblique position of the contact bridge 12 shown in FIG. 3 in the switched-off position.
  • the guide piece 28 is provided with the spring hooks 33 which clamp the two housing halves 1, 2 together.
  • the guide piece 28 has fitting guide pins 34 which interact with the housing halves 1, 2 and which correspond to corresponding guide recesses 35 in the housing halves 1, 2.
  • the through openings 36 for the spring hook 33 are arranged.
  • the guide piece 28 also forms the end stop for the depressed push button 6.
  • the two housing halves 1, 2 are riveted together in their end region on the line connection side by the rivet 37.
  • the vertical leg 14 of the contact bridge 12 is provided on both sides with a recess 38, in each of which a projection 39 of the widening 10 of the shift rod 7 engages when the contact bridge 12 is in a corresponding relative position to the widening 10 or the projections 39, namely in the diagonal stop 32 is in the inclined position.
  • the pushbutton 6 is provided with a deflecting nose 40 which runs next to the switching rod 7 and which deflects the bimetallic element 16 clockwise in order to release the switch-off movement with reference to the fig.
  • the deflection nose 40 acts on the contact piece 15 of the bimetal 16 with a corresponding inclined surface 41.
  • the end of the tubular switch housing consisting of the two housing halves 1, 2 surrounding the push button 6 is provided with a flange-like stop 42 for contacting the outer edge of the installation opening 4, for example of the control panel 5.
  • the push button 6 can be provided with a cap 43 for color coding.
  • Plug-in locks 44 are formed on the connections 17, 18, 20, which have the effect that the plug-in sleeves to be plugged onto them can only be plugged on in a certain rotational position. Due to the arrangement of the connections 17, 18, 20 and the corresponding release direction of the plug-on locks 44, the prescribed creepage distances and clearances can be reliably maintained.
  • the switch is in the single-shaft position shown in FIGS. 2 and 8.
  • the push button 6 is printed in the printing direction 31 (FIG. 3).
  • the deflection nose 40 deflects the free end of the bimetal 16 clockwise with its inclined surface 41.
  • the contact piece 15 of the bimetal 16 gets out of engagement behind the horizontal leg 13 of the contact bridge 12.
  • the contact bridge 12 is consequently torn out of contact not only with the contact piece 15 of the bimetal 16, but also the contact connection 17 by the switching spring 11.
  • the contact bridge ultimately strikes against the underside of the guide piece 28.
  • the push button spring 30 pushes it into its starting position which is furthest from the housing (FIG. 3), which thereby simultaneously signals the switch-off position .
  • the vertical leg 14 of the contact bridge 12 is released from contact with the widening 10 of the switching rod 7, so that the contact bridge 12 with its horizontal leg 13 can lie flush against the oblique stop 32 which forms the underside of the guide piece 28.
  • the contact bridge 12 assumes the inclined position shown in FIG. 3, in which the projections 39 of the widening 10 of the switching rod 7 fall into the recesses 38 of the vertical leg 14 of the contact bridge 12.
  • the contact bridge 12, which is in the switched-off position is thus prepared for reactivation.
  • the restart is initiated by pressing button 6 again.
  • the projections 39 lying in the recesses 38 take the contact bridge 12 downward in the pressure direction 31.
  • the bottom dead center position is shown schematically in FIG. 6.
  • the contact bridge 12 maintains its inclined position.
  • the deflection nose 40 deflects the bimetal 16 clockwise. If the push button is now released, the deflection nose 40 first comes out of contact with the contact piece 15 of the bimetal 16.
  • the bimetal 16 swivels back into the vertical starting position under its own elasticity (FIG. 7). In this vertical starting position, the contact piece 15 of the bimetal 16 is in the way of the free end of the horizontal leg 13 of the contact bridge 12.
  • Bimetal tripping In the event of an overcurrent, i.e. direct or indirect heating of the bimetal 16, automatic deflection of the bimetal 16 in the clockwise direction, releases the free end of the horizontal leg 13 of the contact bridge 12 from the contact piece 15. The contact bridge snaps under the pressure of the switching spring 11 into the stop position on the guide piece 28. The switch-off movement is supported by the push-button spring, which at the same time pushes the push-button up into the switch-off position (FIG. 3).
  • the push button 6 assumes its maximum immersion position from the housing, which signals the off position of the switch from the outside.
  • the switch is switched on again manually by pressing the pushbutton 6, as described above under "Manual actuation".

Landscapes

  • Push-Button Switches (AREA)
  • Breakers (AREA)

Claims (11)

1. Interrupteur-disjoncteur à maximum de courant, à commande par un bouton-poussoir, comprenant
a) un pont de contact (12), réalisé sous forme d'un levier coudé à peu près à angle droit, qui est maintenu à sa position de fermeture avec verrouillage par une bilame non fléchie, pont de contact qui
- est monté de façon à pouvoir osciller librement sur une tige de commande (7) et à pouvoir être déplacé dans le sens de l'axe (8) de cette tige, laquelle et reliée rigidement au bouton-poussoir (6) et s'étend dans la direction d'enfoncement (31) de ce bouton-poussoir, lequel est chargé en sens contraire par ressort,
- est pressé, lors de la coupure, contre une butée oblique (32), solidaire du boîtier, par un ressort de rupture (11) agissant dans le sens de la longueur de la tige de commande (7) et en sens contraire à la direction d'enfoncement (31) du bouton-poussoir, où le pont de contact (12) occupe une position oblique, inclinée par rapport à sa position de fermeture normale, pour sa préhension par une saillie (39) de la tige de commande (7) et
- peut être amené à sa position de fermeture ou d'enclenchement par l'actionnement du bouton-poussoir dans sa direction d'enfoncement (31),
- position où le pont de contact (12), sous la pression du ressort de rupture (11), s'accroche par sa branche horizontale (13), venant de sa position oblique de préhension (figure 3), derrière le contact (15) de la bilame (16), laquelle est en position non fléchie, et le pont de contact, tourné en arrière à sa position normale, est pressé contre une pièce de raccordement (17), fixée au boîtier, par sa branche verticale (15) à peu près parallèle à la tige de commande (7), et
b) un dispositif à commande manuelle pour fléchir la bilame (16) et pour autoriser ainsi un mouvement de coupure commandé par le ressort de rupture,

caractérisé en ce que le bouton-poussoir (16) porte un appendice de fléchissement (40) situé à côté de la tige de commande (7) et qui fléchit la bilame (16), en agissant directement sur elle, lorsque le bouton-poussoir est enfoncé jusqu'à une position d'enfoncement pratiquement complet
2. Interrupteur selon la revendication 1, caractérisé en ce
- que la bilame (16) est fixée au fond (21) du boîtier situé du côté opposé au bouton-poussoir, fond qui est traversé par les pièces de raccordement électrique (17, 18, 20) et fait saillie en direction du bouton-poussoir (6), à peu près parallèlement à la tige de commande (7),
- que la bilame (16), la tige de commande (7), le pont de contact (12) et l'autre pièce de raccordement (17) sont situés à peu près dans un plan longitudinal passant par le milieu du boîtier de l'interrupteur,
- que l'appendice de fléchissement (40) s'étend parallèlement à la tige de commande (7) en dehors de ce plan médian et
- que la bilame (16) pénètre dans la zone de mouvement de l'appendice de fléchissement (40), au moins à son extrémité libre, par une saillie latérale (contact 15 )
3. Interrupteur selon la revendication 1 ou 2, caractérisé en ce que son boîtier possède une forme extérieure correspondant essentiellement à celle d'un tube, la section droite de ce tube étant adaptée à la section d'ouvertures conventionnelles (4) pour le montage de coupe-circuit à fusible, et que les pièces de raccordement (17, 18, 20) sont engagées dans l'extrémité du tube située à l'opposé du bouton-poussoir (6).
4. Interrupteur selon une ou plusieurs des revendications précédentes, caractérisé en ce que son boîtier est composé de deux demi-boîtiers (1, 2) en matériau isolant, qui sont attachés l'un à l'autre et dont le plan de joint coïncide à peu près avec le plan longitudinal médian de l'interrupteur.
5. Interrupteur selon une ou plusieurs des revendications précédentes, caractérisé en ce que la tige de commande (7) est disposée longitudinalement coulissante dans une pièce de guidage (28) en matériau isolant, pièce de guidage qui
- est fixée aux deux demi-boîtiers (1, 2), entre le pont de contact (12) et le bouton-poussoir (6),
- forme une cloison entre l'espace intérieur (29) du boîtier renfermant les pièces sous tension, espace qui est situé du côté des pièces de raccordement (17, 18, 20), et l'espace recevant le bouton-poussoir, et
- constitue l'appui de réaction côté boîtier pour le ressort (30) chargeant le bouton-poussoir.
6. Interrupteur selon la revendication 5, caractérisé en ce que la pièce de guidage. (28) est pourvue de la butée oblique (32), solidaire du boîtier, pour le pont de contact (12).
7. Interrupteur selon la revendication 5 ou 6, caractérise en ce que la pièce de guidage (28) est pourvue de crochets élastiques (33) qui relient les deux demi-boîtiers (1, 2) ensemble.
8. Interrupteur selon une ou plusieurs des revendications précédentes, caractérisé en ce que la pièce de guidage (28) est pourvue de tenons (34) de guidage et d'ajustement qui coopèrent avec les demi-boîtiers (1, 2).
9. Interrupteur selon une ou plusieurs des revendications précédentes, caractérise en ce que la pièce de guidage (28) forme la butée de fin de course pour l'enfoncement du bouton-poussoir (6).
10. Interrupteur selon une ou plusieurs des revendications précédentes, caractérisé en ce que les deux demi-boîtiers (1, 2) sont rivés ensemble dans leur partie extrême située du côte des pièces de raccordement.
11. Interrupteur selon une ou plusieurs des revendications précédentes, caractérisé en ce que le boîtier tubulaire de l'interrupteur est pourvu, à son extrémité entourant le bouton-poussoir (6), d'une butée (42) sous forme d'une collerette, destinée à s'appliquer contre le bord d'une ouverture de montage (4), et en ce que l'un au moins des deux demi-boîtiers (1, 2) est pourvu de crochets élastiques (3), réalisés d'un seul tenant avec ce demi-boîtier, en tant que dispositif pour empêcher que l'interrupteur ne soit démonté de l'ouverture de montage (4).
EP86114120A 1985-10-29 1986-10-11 Disjoncteur de surintensité Expired EP0222181B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8530597U DE8530597U1 (de) 1985-10-29 1985-10-29 Überstromschutzschalter
DE8530597U 1985-10-29

Publications (2)

Publication Number Publication Date
EP0222181A1 EP0222181A1 (fr) 1987-05-20
EP0222181B1 true EP0222181B1 (fr) 1989-09-06

Family

ID=6786721

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86114120A Expired EP0222181B1 (fr) 1985-10-29 1986-10-11 Disjoncteur de surintensité

Country Status (4)

Country Link
US (1) US4704594A (fr)
EP (1) EP0222181B1 (fr)
JP (1) JPS62195825A (fr)
DE (2) DE8530597U1 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5786742A (en) * 1997-07-14 1998-07-28 Yin; Tien-Ning Push button switch with override interruption structure
TW450419U (en) * 1999-02-12 2001-08-11 You Tsung Mou Key-type interruptible safety switch
TW446174U (en) * 1999-02-12 2001-07-11 You Tsung Mou Simplified push-button type breaker switch
TW427544U (en) 1999-06-24 2001-03-21 You Tsung Mou Pressing-key switch with overload protection function
TW453504U (en) 1999-06-24 2001-09-01 You Tsung Mou Button switch having overload protection function
TW515567U (en) 1999-06-24 2002-12-21 Tsung-Mou You Push button type switch having overload protection and automatic reload function
TW456574U (en) 1999-10-29 2001-09-21 You Tsung Mou Overload protection push button switch with indirectly driven auto-reset activated mechanism
TW475775U (en) 1999-12-30 2002-02-01 Tsung-Mou You Overload protection type push button switch having an intermittent retractable activated mechanism
TW462531U (en) 1999-12-30 2001-11-01 You Tsung Mou Over-load protection type button switch with drawing type auto-reset driven mechanism
CA2297948A1 (fr) * 2000-02-02 2001-08-02 Tsung-Mou Yu Sectionneur de securite a poussoir
TW478641U (en) 2000-06-13 2002-03-01 Tsung-Mou You Cyclic type push button switch having overload protection
US6469610B1 (en) * 2000-07-28 2002-10-22 Tsung-Mou Yu Switch assembly
US6552643B2 (en) * 2000-12-11 2003-04-22 Shang-Hao Chen Structure of a depress-type safety switch
US6496095B2 (en) * 2001-03-08 2002-12-17 Tsung-Mou Yu Switch with an override interruption structure
US6452125B1 (en) 2001-03-17 2002-09-17 Tsung-Mou Yu Switch with an override interruption structure
TWI408717B (zh) * 2010-09-17 2013-09-11 Powertech Ind Co Ltd 開關模組

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1051951B (de) * 1958-02-27 1959-03-05 Ellenberger & Poensgen Druckknopfbetaetigter UEberstromschalter
US4068203A (en) * 1976-06-15 1978-01-10 Heinemann Electric Company Bimetallic circuit breaker
DE7704459U1 (de) * 1977-02-15 1977-06-02 Ellenberger & Poensgen Gmbh, 8503 Altdorf Druckknopfbetätigter bimetallgesteuerter UberstromschaHer mit Freiauslösung

Also Published As

Publication number Publication date
EP0222181A1 (fr) 1987-05-20
US4704594A (en) 1987-11-03
JPS62195825A (ja) 1987-08-28
DE3665512D1 (en) 1989-10-12
DE8530597U1 (de) 1986-02-27
JPH0368500B2 (fr) 1991-10-28

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