EP0319606B1 - Commutateur avec coupe-circuit - Google Patents

Commutateur avec coupe-circuit Download PDF

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Publication number
EP0319606B1
EP0319606B1 EP19870118280 EP87118280A EP0319606B1 EP 0319606 B1 EP0319606 B1 EP 0319606B1 EP 19870118280 EP19870118280 EP 19870118280 EP 87118280 A EP87118280 A EP 87118280A EP 0319606 B1 EP0319606 B1 EP 0319606B1
Authority
EP
European Patent Office
Prior art keywords
housing
fuse
fuse plug
plug
contact
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 - Lifetime
Application number
EP19870118280
Other languages
German (de)
English (en)
Other versions
EP0319606A1 (fr
Inventor
Dietmar Rahmstorf
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.)
KLAUS BRUCHMANN GMBH
Original Assignee
Klaus Bruchmann 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
Priority to DE19853504946 priority Critical patent/DE3504946A1/de
Application filed by Klaus Bruchmann GmbH filed Critical Klaus Bruchmann GmbH
Priority to EP19870118280 priority patent/EP0319606B1/fr
Priority to DE87118280T priority patent/DE3787472D1/de
Publication of EP0319606A1 publication Critical patent/EP0319606A1/fr
Application granted granted Critical
Publication of EP0319606B1 publication Critical patent/EP0319606B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/54—Protective devices wherein the fuse is carried, held, or retained by an intermediate or auxiliary part removable from the base, or used as sectionalisers
    • H01H85/545—Protective devices wherein the fuse is carried, held, or retained by an intermediate or auxiliary part removable from the base, or used as sectionalisers with pivoting fuse carrier

Definitions

  • the invention relates to a fuse switch with a housing, in which at least two electrically insulated housing contacts are arranged at rest, one of which is electrically conductively connected to an input current connection and the other to an output current connection, a frame-like fuse plug which is provided with a fuse insert and which is located in the housing between a switch-off position and a switch-on position rotatably arranged about a central axis and, in its end-of-insertion position, is movably guided directly on the mutually parallel inner walls and on guide elements fixedly arranged thereon, and with narrow sides of its frame on the inner walls of the housing and with a front wall of the frame an arcuate guide element and with a rear wall of the frame on the underside of the end wall of the housing surrounding an insertion opening, a locking device in the housing, by means of which the S Fixing plug in its insertion end position can be fixed, a locking lug on an inner wall of the housing, which engages behind a narrow side of the front wall of the securing plug shortly before
  • a fuse switch of this type is known from FR-A-2 499 763.
  • This fuse switch contains a fuse plug which receives a fuse, the contact caps of which, in an switched-on position, are in contact with contacts fastened in the housing when the fuse plug assumes a position parallel to the upper side of the switch housing.
  • the fuse plug is provided on both sides with trunnions, which are arranged in longitudinally extending recesses on the inner walls of the switch housing and extend perpendicular to the longitudinal axis of the switch housing in the direction of its opening.
  • a leaf spring rests on the longitudinal side of the fuse plug running inside the switch housing, the other end of which is fastened in the switch housing.
  • the fuse plug When the fuse plug is rotated into a switch-off and removal position of the fuse plug, the fuse plug must be pivoted by 90 ° against the force of the leaf spring into this switch-off position by means of a handle connected to it, so that the upper front end of the fuse plug and the fuse arranged therein are in front of the The opening of the switch housing. To remove the fuse, the fuse plug must be pulled through the housing opening by the length that corresponds to the length of the elongated recesses in which the bearing plug of the fuse plug can be moved and rotated.
  • the invention has for its object to ensure a precise fixation of the pivot point for the safety plug.
  • the invention solves this problem in that the contact blades are aligned at a distance parallel to the inner walls of the housing, the front contact blade protruding through a cutout in the front wall of the fuse plug, while the rear contact blade from the frame of the fuse plug is surrounded, the side wall of which in the area of this rear contact knife has an opening for the engagement of the upper housing contact in the switched-on position of the fuse plug.
  • fuse switch with a fuse plug in which fuse inserts with contact caps can be used, it is advisable to provide the fuse plug with contact blades that are in a conductive connection with the contact caps of the fuse insert inserted in the fuse plug.
  • An advantageous further development of the invention also consists in a coupling piece which is pivotably guided on the opposite inner walls of the housing with circular-shaped guide grooves on guide elements designed as strips.
  • This coupling piece can be coupled to the coupling piece of one or more adjacent safety switches by a coupling device, so that a multi-pole safety switch is created.
  • the coupling piece can be positively connected to the fuse plug in the pivoting direction, so that when the fuse plug is actuated, the coupling piece and possibly other coupling pieces connected to it can be pivoted together as part of a multi-pole fuse switch unit.
  • Another particularly expedient embodiment of the invention consists in arranging a longitudinally displaceable protective plate on the coupling piece, which rests with its upper end under the pretension of a spring on the underside of the edge of the insertion opening and, as an actuation lock, covers the upper housing contact at a slight distance, but by means of a driving element of the fuse plug can be moved into the end position of the fuse plug when the plug is moved into the housing until the upper housing contact is released.
  • the coupling piece can cooperate with a locking device, by means of which the securing plug can be locked in its on position and off position.
  • a locking device by means of which the securing plug can be locked in its on position and off position.
  • FIG. 1 to 6 show a first embodiment of a fuse switch 30 with a housing 31 consisting of two halves 31a, 31b, in which at least two electrically insulated housing contacts 32, 33 are arranged at rest.
  • the upper housing contact 33 is electrically connected to an input current connection 34 and the lower housing contact 32 to an output current connection 35.
  • a safety plug 36 is inserted into the housing 31 through an insertion opening 46 and is shown in the off position.
  • a fuse link 37 is inserted into the fuse plug 36 and is pivotably arranged with the fuse plug 36 between the switch-off position shown in FIG. 1 and the switch-on position shown in FIG. 4.
  • the fuse plug 36 essentially encloses the fuse link 37 like a frame.
  • the securing plug 36 lies with the narrow sides 42a, 42b of its frame 42 on the housing inner walls 38, 39 of the housing 31 and with its front wall 44 on an arc-shaped guide element 40, 41, which extends inwards from the parallel inner walls 38, 39 lying opposite one another project at a distance from one another and with its rear wall 45 on the underside of the end wall 47 of the housing 31 surrounding the insertion opening 46.
  • the switch housing 31 can be made relatively narrow, the housing itself, with the exception of the removable fuse plug, not requiring any further moving parts for the switching movement thereof.
  • a latching device 48 is arranged in the housing 31, by means of which the securing plug 36 can be fixed in its insertion end position.
  • the locking device 48 consists of an arranged on the inner wall 38 of the housing 31 Latching nose 49 which engages behind the narrow side 50 of the front wall 44 of the securing plug 36 shortly before reaching the insertion end position of the securing plug 36.
  • the fuse link 37 is provided at its ends with contact blades 51, 52 which, as can be seen in FIGS. 2 and 3, are aligned at a distance parallel to the inner walls 38, 39 of the housing 31 are.
  • the front contact knife 51 projects through a cutout 53 in the front wall 44 of the safety plug 36.
  • the rear contact knife 52 is surrounded by the frame 42 of the fuse plug 36, the side wall 54 of which in the area of this contact knife 52 has an opening 55 for the engagement of the upper housing contact 32 in the switched-on position of the fuse plug 36.
  • Fig. 4 it can be seen that in the switched-on position, the front contact blade 51 engages in an electrically conductive manner in the inner fork-shaped housing contact 33, while the rear contact blade 52 engages in the upper fork-shaped housing contact 32, which in this case engages in the opening 55 of the side wall 54 in the region of the engages the outer end of the fuse plug 36.
  • the switch-on position of the security plug 36 is limited by the edge 47a of the end wall 47 at the insertion opening 46, which abuts the handle 36a of the security plug 36 in this position.
  • a coupling piece 160 is provided, which is provided with circular arc-shaped guide grooves 161, 162 on the circular arc-shaped guide elements 140, 141 on the opposite inner walls 138, 139 of the housing 131 is pivotally guided.
  • the coupling piece 160 can be connected to the coupling piece of at least one adjacent fuse switch of the same type by a coupling device 163.
  • this coupling device 163 consists of a coupling pin 164 which projects from one side of the coupling piece 160 and projects outwards through a slot 165 in the associated housing wall 138.
  • the same coupling piece 160 is arranged on the side coaxially opposite the coupling pin 164 with an engagement opening 166 for a corresponding coupling pin 164 of an adjacent safety switch 131a.
  • the coupling pin 164 of the coupling piece 160 can naturally engage in a corresponding engagement opening 166 of the coupling piece of an adjacent safety switch (not shown).
  • a multi-pole fuse switch unit can be created with the aid of a plurality of fuse switches, in which the fuse plugs are connected to one another via the coupling pieces 160 and can be switched at the same time.
  • the coupling piece 160 is also entrained when the securing plug 136 is pivoted, the side wall 154 of the securing plug 136 is on the opposite one parallel to it 7 to 12 of the fuse switch 130, it is preferred that the coupling piece 160 is positively connected to the opposite side wall 154 of the fuse plug 136 facing the upper housing contact 132.
  • This positive connection in the pivoting direction between the securing plug 136 and the coupling piece 160 consists of a dovetail-shaped tongue and groove connection 173 between the side wall of the securing plug 136 and a corresponding lateral extension 174 of the coupling piece 160.
  • a protective plate 167 is mounted on the coupling piece 160 by means of a dovetail guide 197 so as to be longitudinally displaceable.
  • the upper end 168 of the protective plate 167 lies under the pretension of a compression spring 169 arranged in the coupling piece 160 and supported on a web 160a of the protective plate 167 on the underside of the edge 170 of the insertion opening 146 and, as an actuation lock, covers the upper housing contact 132 at a slight distance .
  • the protective plate 167 can be displaced by means of a driver element 171 of the securing plug 136 when it is pushed into the housing 131 until the upper housing contact 132 is released in the insertion end position of the securing plug 136.
  • the driving element 171 is designed as a driving lug 172, which can be moved through a small cutout 170a of the edge 170 of the end wall 147 of the housing 131 and at the outer end 168 of the protective plate 167 when the securing plug is inserted 136 comes into contact with the housing 131. It is thus apparent from FIG. 7 that the contact piece 160 and the safety plug 136 are prevented from being switched on by the protective plate 167.
  • the coupling piece 160 is assigned a locking device 175, by means of which the securing plug 136 can be locked in its switched-on and switched-off positions via the coupling piece 160.
  • the locking device 175 is composed of a tooth segment 176 which is provided on the outer surface of the coupling piece 160 and which interacts with a pinion 177.
  • the pinion 177 which engages in corresponding openings 131a, 131b of the two side walls 131c, 131d of the housing 131 with shaft journals 177a, 177b, is provided between two pinion parts 177c, 177d with an eccentrically arranged pin 178 which, when the coupling piece 160 pivots over the toothed segment and pinion connection can be pivoted between two end positions, which correspond to the switch-on or switch-off position of the safety plug 136. Since the eccentric pin 178 is connected to one end of a tension spring 179, the other end of which is fixed to a pin 196 in the housing 131, the pinion 177 must overcome a dead center position of the pin 178 under the action of the spring 179 before the other end position is reached.
  • the securing plug 136 in FIG. 7 assumes the switch-off position shown there as a result of the relaxed spring 179 with the coupling piece 160.
  • the handle 136a of the securing plug 136 bears against the edge of the insertion opening 146 under the action of the prestressed spring 179, so that the switch-on position is thereby fixed properly.
  • FIGS. 7 to 12 show a fuse plug 136 for the embodiment of a fuse switch 131 shown in FIGS. 7 to 12, in which fuse plug 136 only fuse sets 137 can be used, which are provided with contact caps 137a, 137b, on the end faces of which contact blades 151, 152 are attached.
  • a securing plug 136 is shown, at the front and rear ends of which contact blades 158, 159 are fastened, the rear of which is under the action of a coiled leaf spring 180, while the contact blade 159 at the front end of the securing plug 136 is firmly arranged in this.
  • FIG. 17 shows a fuse link 137 provided with contact caps 156, 157, the contact caps 156, 157 of which in each case bear in an electrically conductive manner on the contact blades 158, 159 of the fuse plug 136. Otherwise, the securing plug for interacting with the coupling piece 160 or the protective plate 167 is of the same design.

Landscapes

  • Fuses (AREA)

Claims (11)

  1. Commutateur avec coupe-circuit (30) comportant
       un boîtier (31) dans lequel sont disposés au repos au moins deux contacts de mise à la masse (32, 33) isolés électriquement et dont l'un est raccordé à une connexion de courant d'entrée (34) et l'autre de façon conductrice électriquement à une connexion de courant de sortie,
       une cartouche de fusible (37) avec une fiche de fusible (36) qui est agencée dans le boîtier (31) entre une position de coupure et une position de branchement de façon pivotante autour d'un axe central et qui est guidée de façon mobile dans sa position d'extrémité embrochable directement sur les parois internes (38, 39) parallèles entre elles ainsi que sur des éléments de guidage agencés de façon fixe, avec les petits côtés de son châssis ou carte (42) sur les parois internes (38, 39) du logement (31) et avec une paroi avant (44) du châssis (42) sur un élément de guidage en forme d'arc de cercle (40, 41) et vient en butée de façon mobile avec une paroi arrière (45) du châssis (42) sur le côté inférieur de la paroi frontale (47) entourant une ouverture d'enfichage (46), du logement (31),
       un dispositif d'encliquetage (48) dans le boîtier (31), au moyen duquel la fiche de fusible (36) peut être fixée dans une position d'extrémité embrochable,
       un bec d'encliquetage (49) sur la paroi interne du logement (31) qui traverse de façon encliquetable peu avant d'atteindre la position d'extrémité embrochable de la fiche de fusible (36) un petit côté (50) de la paroi avant (44) de la fiche de fusible (36),
       laquelle cartouche de fusible (37) présente respectivement une lame de contact (51, 52) sur ses extrémités, caractérisée en ce que les lames de contact (51, 52) sont orientées parallèlement selon un certain espacement par rapport aux parois internes (38, 39) du logement (31), la lame de contact avant (51) faisant saillie par une échancrure (53) dans la paroi avant (44) de la fiche de fusible (36), tandis que la lame de contact arrière (52) est entourée par le châssis (42) de la fiche de fusible (36), dont la paroi latérale (54) présente dans la zone de cette lame de contact arrière (52) une ouverture (55) pour l'attaque du contact de masse supérieur (32) dans la position de branchement de la fiche de fusible (36).
  2. Commutateur avec coupe-circuit selon la revendication 1, avec une fiche de fusible dans laquelle des cartouches de fusible peuvent être incorporées avec des capuchons de contact, caractérisé en ce que la fiche de fusible est munie de lames de contact (58, 59) qui sont en communication conductrice avec les capuchons de contact (56, 57) de la cartouche de fusible incorporée dans la fiche de fusible.
  3. Commutateur avec coupe-circuit selon la revendication 1 ou 2, caractérisé en ce qu'un élément de couplage (160) avec des gorges de guidage en arc de cercle (161, 162) est guidé de façon pivotante sur les éléments de guidage (140, 141) ayant la forme de glissières, sur les parois internes opposées (138, 139) du logement (31).
  4. Commutateur avec coupe-circuit selon la revendication 3 destiné à un agencement multipolaire, caractérisé en ce que l'élément de couplage (160) est raccordé à l'élément de couplage d'au moins un commutateur avec coupe-circuit voisin par un' dispositif de couplage (163).
  5. Commutateur avec coupe-circuit selon la revendication 4, caractérisé en ce que le dispositif de couplage (163) consiste en un tenon de couplage (164) sur un côté de l'élément de couplage (160), qui fait saillie vers l'extérieur à travers une fente (165) de la paroi de boitier correspondante et en ce qu'au niveau du côté opposé coaxialement au tenon de couplage (164), de l'élément de couplage (160) est agencée une ouverture d'attaque (166) pour le tenon de couplage (164) d'un commutateur avec coupe-circuit voisin.
  6. Commutateur avec coupe-circuit selon l'une des revendications 3 à 5, caractérisé en ce que l'élément de couplage (160) est raccordé en engagement positif à une paroi latérale (154) de la fiche de fusible (136) dans la direction de pivotement de celle-ci.
  7. Commutateur avec coupe-circuit selon la revendication 6, caractérisé en ce que le couplage entre l'élément de couplage (160) et la fiche de fusible (136) est prévu sur le côté de la fiche de fusible (136) qui est dirigée vers le contact de mise à la masse supérieur (132).
  8. Commutateur avec coupe-circuit selon la revendication 7, caractérisé en ce qu'une plaquette de protection (167) est montée de façon mobile longitudinalement sur l'élément de couplage (160), laquelle plaquette repose avec son extrémité extérieure (168) sous l'effet de la précontrainte d'un ressort (169) sur le côté inférieur du bord (170) d'une ouverture d'enfichage (146) et recouvre en tant que barrette d'actionnement le contact de masse supérieur (132) selon un espacement très faible, mais qui toutefois, au moyen d'un organe d'entraînement (171) de la fiche de boîtier (136) est déplaçable avec le mouvement d'embrochage dans le boîtier (131) jusqu'à la libération du contact de masse supérieur (132) dans la position d'extrémité embrochable de la fiche de fusible (136) pour la libération d'un mouvement de branchement.
  9. Commutateur avec coupe-circuit selon l'une des revendications 3 à 8, caractérisé en ce que l'organe d'entraînement (171) de la fiche de fusible (136) forme un bec d'entraînement (172) qui vient en butée sur l'extrémité extérieure (168) de la plaquette de protection (167) et en ce que l'assemblage pivotant en engagement positif entre la fiche de fusible et l'élément de couplage (160) est constitué par un assemblage à queue d'aronde (173) entre la paroi latérale de la fiche de fusible et un appendice latéral correspondant (174) de l'élément de couplage (160).
  10. Commutateur avec coupe-circuit selon l'une des revendications 3 à 9, caractérisé en ce que l'élément de couplage (160) coopère avec un dispositif d'arrêt (175) au moyen duquel la fiche de fusible (136) peut être arrêtée respectivement dans sa position de branchement et dans sa position de coupure.
  11. Commutateur avec coupe-circuit selon la revendication 10, caractérisé en ce que la face externe de l'élément de couplage (160) est munie d'un segment de dent (176) qui coopère avec un pignon (177) sur lequel est fixé excentriquement un axe (178) pour lequel entre deux positions d'extrémité (180, 181) d'un mouvement pivotant est prévue une position de point mort de l'axe (178) sous l'effet d'un ressort (179), les deux positions d'extrémité de l'axe (178) correspondant à la position de branchement ou à la position de coupure de la fiche de fusible (136).
EP19870118280 1985-02-13 1987-12-09 Commutateur avec coupe-circuit Expired - Lifetime EP0319606B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE19853504946 DE3504946A1 (de) 1985-02-13 1985-02-13 Schaltersicherungseinheit
EP19870118280 EP0319606B1 (fr) 1987-12-09 1987-12-09 Commutateur avec coupe-circuit
DE87118280T DE3787472D1 (de) 1987-12-09 1987-12-09 Sicherungsschalter.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19870118280 EP0319606B1 (fr) 1987-12-09 1987-12-09 Commutateur avec coupe-circuit

Publications (2)

Publication Number Publication Date
EP0319606A1 EP0319606A1 (fr) 1989-06-14
EP0319606B1 true EP0319606B1 (fr) 1993-09-15

Family

ID=8197503

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870118280 Expired - Lifetime EP0319606B1 (fr) 1985-02-13 1987-12-09 Commutateur avec coupe-circuit

Country Status (2)

Country Link
EP (1) EP0319606B1 (fr)
DE (1) DE3787472D1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT412927B (de) * 1999-04-20 2005-08-25 Felten & Guilleaume Ag Oester Schmelzsicherungsschalter
US10008347B1 (en) 2013-08-08 2018-06-26 Palle Kohring Weinreich Electrical switch with built in fuse improvement
US9263211B2 (en) * 2013-08-08 2016-02-16 Palle Kohring Weinreich Electrical switch with built in fuse

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK152157C (da) * 1976-12-10 1988-06-20 Knudsen Nordisk Elect Gruppeafbryder
US4268106A (en) * 1979-10-30 1981-05-19 The Singer Company Fuse holder assembly
FR2499763A1 (fr) * 1981-02-09 1982-08-13 Schupa Elektro Gmbh & Co Kg Coupe-circuit a cartouche
DE3406815A1 (de) * 1984-02-24 1985-09-12 Klaus 8600 Bamberg Bruchmann Schaltersicherungseinheit

Also Published As

Publication number Publication date
DE3787472D1 (de) 1993-10-21
EP0319606A1 (fr) 1989-06-14

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