EP1687835B1 - Commutateur - Google Patents

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Publication number
EP1687835B1
EP1687835B1 EP04797530A EP04797530A EP1687835B1 EP 1687835 B1 EP1687835 B1 EP 1687835B1 EP 04797530 A EP04797530 A EP 04797530A EP 04797530 A EP04797530 A EP 04797530A EP 1687835 B1 EP1687835 B1 EP 1687835B1
Authority
EP
European Patent Office
Prior art keywords
sidewalls
switching device
cage
slide
switching
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.)
Active
Application number
EP04797530A
Other languages
German (de)
English (en)
Other versions
EP1687835A1 (fr
Inventor
Rudolf Kinzler
Ludwig Niebler
Anton Scharf
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to PL04797530T priority Critical patent/PL1687835T3/pl
Publication of EP1687835A1 publication Critical patent/EP1687835A1/fr
Application granted granted Critical
Publication of EP1687835B1 publication Critical patent/EP1687835B1/fr
Anticipated expiration legal-status Critical
Active legal-status Critical Current

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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
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0207—Mounting or assembling the different parts of the 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
    • 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
    • H01H73/02—Details
    • H01H73/04—Contacts
    • H01H73/045—Bridging contacts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49105—Switch making

Definitions

  • the invention relates to a switching device having a switching structure comprising a cage assembly having two opposing first side walls and a bottom wall connecting them integrally, wherein the cage assembly is at least partially formed as a cage in which a slider is slidably mounted, wherein in an opening of the slide a fixed contacts associated movable contact bridge is held under the action of a contact pressure spring, and wherein a clearance between the two first side walls is provided for the displacement of the contact bridge, and wherein a stop is provided for holding the slider.
  • each Polstromweg contains two fixed contacts and two arranged on a movable contact bridge movable contacts through which a pole switch with double break is formed.
  • the movable contact bridge is acted upon by a mechanism for opening and closing the contacts. This is done via a pusher, which is guided in a fixed cage.
  • the cage is made of insulating material and includes a bottom wall and side walls extending vertically therefrom, and is provided with windows sized to permit displacement of the contact bridge, particularly under the action of the opening and closing mechanism in the event of electrodynamic recoil. In addition, the windows determine an upper stop for the contact bridge.
  • a contact pressure spring is disposed between the bottom wall of the cage and the contact bridge in a central cavity of the cage, which serves as a seat and translational guidance of the pusher.
  • the pusher is thus against the inner surfaces of the side walls led the cage.
  • the walls of the pusher have openings sized to permit, on the one hand, the introduction of the contact bridge into the pusher and, on the other hand, angular movement of the bridge with respect to the pusher.
  • the cage includes insulating wings that extend longitudinally a distance that is slightly greater than the length of the contact bridge, and whose height is sufficient to create a volume containing the opening arcs.
  • this switching chamber assembly is carried out in such a way that the first pusher or slider is inserted into the cage and held in a defined position. As a result, a window in the slide is accessible from the side under the webs forming the stops. After the contact pressure spring is inserted from above through a hole in the slide in the cage, after moving the spring by means of a punch in the still free space of the window, the movable contact piece is inserted and finally rotated by a 90 ° rotation in its final operating position.
  • a switching device of the above type is the DE 59901859 G refer to.
  • the switching structure 1 consists in the drawing shown essentially of two parallel, elongated side walls 5, which are connected at its bottom by a bottom wall 6, not shown here.
  • the gap 7 between the two side walls 5, ie the interior, is accessible on all sides except for the connection through the bottom wall 6.
  • a guide channel 10 is formed by contours 9 in the side walls 5, which is provided in the side walls 5 with slots 11.
  • the movable contact bridge 3 is also inserted from above into the interior.
  • the guide channel 10 is adapted to the slider 4 in its dimensions. This is introduced after the movable contact bridge 3 in the guide channel 10 and locks it with its laterally arranged locking lugs 12 in said slots 11 and comes on the contact bridge 3 to support.
  • the slide 4 has an opening 15, which is designed as a recess on the underside for receiving the contact bridge 3.
  • the upper boundary of the slots 11 serves as a stop 18 for the slide 4.
  • the side walls 5 are provided externally with grooves 13, are plugged into the quenching plates 16 of a splitter stack 17.
  • the complete assembly 1, which consists of switching structure and plugged arc chamber is in a lower part 19 of the switching device according to FIG. 3 plugged.
  • the contact slide 4 By connecting the two preassembled lower 19 and upper parts 20, the contact slide 4 come in the lower part 19 and the switching mechanism in the upper part 20 into engagement. This results in the problem that when switching high currents, such as short circuits, in the switching chamber assembly, an arc plasma is created, which can get over column in the upper part 20 and there may cause damage by, for example, phase arcing from one flow path to another, smoke and thus shorts on a printed circuit board, etc. occur. In order to prevent this, the goal is always to keep the gap between lower part 19 and upper part 20 as small as possible. A contradiction arises in the area of the contact slide 4. When joining lower part 19 and Upper part 20, the contact slide 4 are inserted into openings on the upper part 20. Too small a gap may result in an offset of the upper part 20 to the lower part 19 for jamming the contact slide 4.
  • the invention has for its object to provide a switching device of the type mentioned above with a switching structure, in which jamming of the contact slide due to component tolerances and / or thermal and mechanical stresses is avoided as possible.
  • switching chambers formed by insulating second side walls belong to the switching structure.
  • the second side walls define a volume containing the aperture arcs and are disposed on opposite sides of the cage assembly comprising the cage and separated therefrom by a gap.
  • An advantageous development of the invention is when in the gap in each case a first web of insulating positively engages in order to avoid any harmful thermal stresses through the opening arcs.
  • the first web is part of a lower part of the switching device, in which the cage assembly is arranged with the cage.
  • the two first side walls are connected on the side facing away from the bottom wall by at least one second web, thereby at least one of the free spaces for the contact bridge is limited. This is e.g. given a stop for the contact bridge.
  • the cage assembly with the cage is thereby stabilized.
  • Another advantage is when the two second side walls are integrally connected to each other and U-shaped.
  • the two second side walls In order to avoid a collapse of the two second side walls, they are fixed on the side facing away from their connection by spacer means.
  • the spacing means are not part of the second side walls.
  • the first and the second side walls are components of an originally one-piece molded part made of insulating material with a view to simple production.
  • the second side walls are surrounded by quenching plates.
  • at least one blower plate per switching point is provided for influencing the opening arc.
  • a further advantageous embodiment is when the first side walls have the stop for the slider.
  • the slider can be locked in a simple manner with the first side walls.
  • the slider on locking elements which engage in longitudinally formed to the direction of movement of the slider slots. This means that there is a loose locking connection between the slider and the first side walls, which allows the displacement of the slider during the switching operation.
  • the switching device has a switching structure 1, which comprises a cage assembly 24 and spaced therefrom with a gap 27 two splitter assemblies 22 as in FIG. 6 shown.
  • the cage assembly 24 has a cage 21 formed from two opposite first side walls 5 and a bottom wall 6 integrally connecting them FIGS. 5 and 6 in which a slider 4 is slidably mounted. In an opening 15 of the slider 4, a fixed contacts associated movable contact bridge 3 is held under the action of a contact pressure spring 2.
  • the cage 21 has from its interior 7 to the outside a passage 14 which allows a substantially transverse to the longitudinal extent of the contact bridge 3 directed insertion thereof into the interior of the cage 21 for mounting between the contact pressure spring 2 and the slide 4.
  • the switching structure 1 further comprises switching chambers formed by insulating second side walls 23 in which an opening arc is produced when a high current is switched off.
  • the quenching plates 16 have an area with elongated feet that surround the second side walls 23 and are critical to the path travel of the arc from the pad.
  • the second side walls 23 together with the quenching plates 16 form the splitter assembly 22.
  • On opposite sides of the cage assembly 24 and spaced therefrom by a gap 27, a splitter assembly 22 is disposed in each case, which surrounds the contact bridge 3 partially, as in FIG. 6 shown.
  • the first 5 and the second 23 side walls can according to a particularly simple manufacturing process components of an originally integral molding of insulating material according to FIG. 1 be.
  • the first side walls 5 have the stop 18 for the slide 4.
  • the slider 4 can be latched to the first side walls 5 and has latching elements 12 which engage in slots 11 formed longitudinally to the direction of movement of the slider 4.
  • the two first side walls 5 are connected only at two opposite longitudinal sides by a bottom wall 6, on which the contact pressure spring 2 is supported.
  • FIG. 7 shows a molded usually made of insulating lower part 19 with a first web 28 which engages positively in the gap 27 between the cage assembly 24 and the second side walls 23.
  • the two first side walls 5 are connected on the side facing away from the bottom wall 6 side according to a second embodiment by an at least second web 29 with each other.
  • the second web 29 can serve here for stiffening the cage assembly 24 and / or as a stop for the contact bridge 3.
  • the two second side walls 23 may be integrally connected to one another and U-shaped as in FIG FIG. 9 shown.
  • the spacing means 30 are designed here as projections on the fixed contacts, which are arranged in the upper part 20.
  • FIG. 10 shows a switching structure of a switching device according to the invention prior to installation in a lower part, ie the side walls 23 with the quenching plates 16 and cage assembly 24 are separate components.
  • the invention also relates to a method for producing a switching device according to the invention with the switching structure 1 described above, which will be described below.
  • the molded part is produced, which comprises the cage 21 formed from the two opposite first side walls 5 and the bottom wall 6 connecting them in one piece and the second side walls 23 integrally connected to the cage 21.
  • the first 5, the second side walls 23 and the bottom wall 6 an interior space is formed, which has in a plane substantially parallel to the bottom wall 6 outwardly a passage 14 of at least the length of the contact bridge 3.
  • the side walls 23, which are referred to as laterally insulating wings, are separated after the cage 21 has been fitted with the contact pressure spring 21, the contact bridge 3 and the slide 4.
  • the resulting cage assembly 24 and the separated side walls 23 are in turn used with or without quenching plates in the lower part 19 of the switching device and thereby arranged away from each other with a defined gap 27.
  • the edge contours of the column 27 are preferably predetermined by the production.

Landscapes

  • Slide Switches (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Breakers (AREA)
  • Eye Examination Apparatus (AREA)
  • Seal Device For Vehicle (AREA)
  • Vehicle Body Suspensions (AREA)
  • Push-Button Switches (AREA)
  • Lubricants (AREA)

Claims (15)

  1. Appareil de commutation ou commutateur comprenant une structure de commutation (1) qui englobe un sous-groupe de cage (24) avec deux premières parois latérales (5) opposées et une paroi de fond (6) qui les relie d'un seul tenant, appareil
    dans lequel le sous-groupe de cage (24) est réalisé au moins en partie sous forme de cage (21) dans laquelle est monté coulissant un coulisseau (4),
    dans lequel un pontet de contact (3) mobile, associé à des contacts fixes, est maintenu dans une ouverture (15) du coulisseau (4) en sollicitant un ressort de compression de contact (2),
    dans lequel est prévu un espace libre (26) entre les deux premières parois latérales (5), pour le coulissement du pontet de contact (3),
    dans lequel une butée (18) est prévue pour la retenue du coulisseau (4),
    dans lequel des chambres de commutation (7) formées par des deuxièmes parois latérales (23) isolantes, font partie de la structure de commutation (1),
    dans lequel les deuxièmes parois latérales (23) délimitent un volume qui renferme les arcs électriques d'ouverture,
    et dans lequel les deuxièmes parois latérales (23) sont agencées sur des côtés opposés du sous-groupe de cage (24) englobant la cage (21),
    caractérisé en ce que les deuxièmes parois latérales sont agencées de manière à être séparées chacune par un interstice (27), du sous-groupe de cage (24).
  2. Appareil de commutation selon la revendication 1,
    caractérisé en ce que dans chaque interstice (27) s'engage par complémentarité de formes, une première nervure (28) respective en matériau isolant.
  3. Appareil de commutation selon la revendication 2, caractérisé en ce que la première nervure (28) est une partie constitutive d'une partie inférieure (19) dans laquelle est agencé le sous-groupe de cage (24) avec la cage (21).
  4. Appareil de commutation selon l'une des revendications citées plus haut, caractérisé en ce que les deux premières parois latérales (5) sont reliées par au moins une deuxième nervure (29), sur le côté opposé à celui de la paroi de fond (6), ce qui délimite au moins l'un des espaces libres pour le pontet de contact (3).
  5. Appareil de commutation selon la revendication 4, caractérisé en ce que la deuxième nervure (29) sert de butée pour le pontet de contact (3)
  6. Appareil de commutation selon l'une des revendications citées plus haut, caractérisé en ce que les deux deuxièmes parois latérales (23) sont reliées d'un seul tenant et en forme de U.
  7. Appareil de commutation selon la revendication 6, caractérisé en ce que les deux deuxièmes parois latérales (23) sont fixées, sur le côté opposé à celui de leur liaison, par des moyens d'entretoise (30), les moyens d'entretoise (30) n'étant pas des parties constitutives des deuxièmes parois latérales (23).
  8. Appareil de commutation selon les revendications citées plus haut, caractérisé en ce que les premières (5) et les deuxièmes parois latérales (23) sont des parties constitutives d'une pièce de forme, initialement d'un seul tenant, en matériau isolant.
  9. Appareil de commutation selon les revendications citées plus haut, caractérisé en ce que les deuxièmes parois latérales (23) sont entourées par des tôles d'extinction (16).
  10. Appareil de commutation selon l'une des revendications citées plus haut, caractérisé en ce qu'il est prévu au moins une tôle de soufflage (31) par point de commutation, pour influencer l'arc électrique d'ouverture.
  11. Appareil de commutation selon la revendication 1, caractérisé en ce que les premières parois latérales (5) présentent la butée (18) pour le coulisseau (4).
  12. Appareil de commutation selon l'une des revendications citées plus haut, caractérisé en ce que le coulisseau (4) peut être encliqueté avec les premières parois latérales (5).
  13. Appareil de commutation selon l'une des revendications précédentes, caractérisé en ce que le coulisseau (4) présente des éléments d'encliquetage (12) qui s'engagent dans des fentes (11) réalisées longitudinalement par rapport à la direction de mouvement du coulisseau (4).
  14. Appareil de commutation selon l'une des revendications précédentes, caractérisé en ce que les deux premières parois latérales (5) sont reliées, uniquement au niveau de deux côtés longitudinaux opposés, par une paroi de fond (6) sur laquelle s'appuie le ressort de compression de contact (2).
  15. Procédé de fabrication d'un appareil de commutation ou commutateur comprenant une structure de commutation (1) qui englobe un sous-groupe de cage (24) avec deux premières parois latérales (5) opposées et une paroi de fond (6) qui les relie d'un seul tenant, appareil
    dans lequel le sous-groupe de cage (24) est réalisé au moins en partie sous forme de cage (21) dans laquelle est monté coulissant un coulisseau (4),
    dans lequel un pontet de contact (3) mobile, associé à des contacts fixes, est maintenu dans une ouverture (15) du coulisseau (4) en sollicitant un ressort de compression de contact (2),
    dans lequel est prévu un espace libre (26) entre les deux premières parois latérales (5), pour le coulissement du pontet de contact (3),
    dans lequel une butée (18) est prévue pour la retenue du coulisseau (4),
    dans lequel des chambres de commutation (7) formées par des deuxièmes parois latérales (23) isolantes font partie de la structure de commutation (1),
    dans lequel les deuxièmes parois latérales (23) délimitent un volume qui renferme les arcs électriques d'ouverture,
    et dans lequel les deuxièmes parois latérales (23) sont agencées sur des côtés opposés du sous-groupe de cage (24) englobant la cage (21), et de manière à être séparées chacune de celui-ci, par un interstice (27),
    le procédé étant caractérisé par les étapes suivantes :
    a) on fabrique tout d'abord une pièce de forme qui comprend la cage (21) formée par les deux premières parois latérales (5) opposées et la paroi de fond (6) qui les relie d'un seul tenant, ainsi que par les deuxièmes parois latérales (23) reliées d'un seul tenant avec la cage (21), puis suivent les étapes b) et c), leur ordre pouvant être inversé,
    b) la pièce de forme est ouverte par sectionnement, par exemple par une opération de fraisage ou de coupe, à chaque endroit où les deuxièmes parois latérales (23) sont reliées à la cage (21), ce qui conduit à la formation du sous-groupe de cage (24) et des deuxièmes parois latérales (23) séparées par sectionnement, et
    c) le sous-groupe de cage (24) ainsi que les deuxièmes parois latérales (23) sont insérés, avec ou sans tôles d'extinction (16), dans la partie inférieure (19), un interstice (27) défini étant laissé libre entre le sous-groupe de cage (24) et respectivement les deuxièmes parois latérales (23).
EP04797530A 2003-11-28 2004-11-02 Commutateur Active EP1687835B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL04797530T PL1687835T3 (pl) 2003-11-28 2004-11-02 Urządzenie przełączające

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10356271A DE10356271B4 (de) 2003-11-28 2003-11-28 Schaltgerät
PCT/EP2004/012387 WO2005062333A1 (fr) 2003-11-28 2004-11-02 Commutateur

Publications (2)

Publication Number Publication Date
EP1687835A1 EP1687835A1 (fr) 2006-08-09
EP1687835B1 true EP1687835B1 (fr) 2008-03-26

Family

ID=34609433

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04797530A Active EP1687835B1 (fr) 2003-11-28 2004-11-02 Commutateur

Country Status (11)

Country Link
US (3) US7285742B2 (fr)
EP (1) EP1687835B1 (fr)
JP (1) JP4309431B2 (fr)
KR (1) KR100856594B1 (fr)
CN (1) CN1886816B (fr)
AT (1) ATE390703T1 (fr)
DE (2) DE10356271B4 (fr)
ES (1) ES2302048T3 (fr)
HK (1) HK1095202A1 (fr)
PL (1) PL1687835T3 (fr)
WO (1) WO2005062333A1 (fr)

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ATE390703T1 (de) 2008-04-15
US7285742B2 (en) 2007-10-23
US7748105B2 (en) 2010-07-06
KR100856594B1 (ko) 2008-09-03
HK1095202A1 (en) 2007-04-27
PL1687835T3 (pl) 2008-09-30
JP4309431B2 (ja) 2009-08-05
CN1886816B (zh) 2012-01-18
KR20060116843A (ko) 2006-11-15
US7371987B2 (en) 2008-05-13
US20060266738A1 (en) 2006-11-30
DE502004006689D1 (de) 2008-05-08
EP1687835A1 (fr) 2006-08-09
JP2007512664A (ja) 2007-05-17
CN1886816A (zh) 2006-12-27
DE10356271A1 (de) 2005-06-23
ES2302048T3 (es) 2008-07-01
US20050135022A1 (en) 2005-06-23
WO2005062333A1 (fr) 2005-07-07
US20070187365A1 (en) 2007-08-16
DE10356271B4 (de) 2008-02-14

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