EP0805469A2 - Appareil de commutation électrique - Google Patents

Appareil de commutation électrique Download PDF

Info

Publication number
EP0805469A2
EP0805469A2 EP97106969A EP97106969A EP0805469A2 EP 0805469 A2 EP0805469 A2 EP 0805469A2 EP 97106969 A EP97106969 A EP 97106969A EP 97106969 A EP97106969 A EP 97106969A EP 0805469 A2 EP0805469 A2 EP 0805469A2
Authority
EP
European Patent Office
Prior art keywords
switching device
electrical switching
contact
movable contact
rocker
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.)
Granted
Application number
EP97106969A
Other languages
German (de)
English (en)
Other versions
EP0805469A3 (fr
EP0805469B1 (fr
Inventor
Klaus Maekler
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.)
ABB Patent GmbH
Original Assignee
ABB Patent 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 ABB Patent GmbH filed Critical ABB Patent GmbH
Publication of EP0805469A2 publication Critical patent/EP0805469A2/fr
Publication of EP0805469A3 publication Critical patent/EP0805469A3/fr
Application granted granted Critical
Publication of EP0805469B1 publication Critical patent/EP0805469B1/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
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H1/5833—Electric connections to or between contacts; Terminals comprising an articulating, sliding or rolling contact between movable contact and terminal
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H23/00—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
    • H01H23/02—Details
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H1/5844—Electric connections to or between contacts; Terminals making use of wire-gripping clips or springs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H23/00—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
    • H01H23/02—Details
    • H01H23/12—Movable parts; Contacts mounted thereon
    • H01H23/16—Driving mechanisms
    • H01H23/166—Driving mechanisms with positive action
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H23/00—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
    • H01H23/02—Details
    • H01H23/12—Movable parts; Contacts mounted thereon
    • H01H23/16—Driving mechanisms
    • H01H23/20—Driving mechanisms having snap action
    • H01H23/205—Driving mechanisms having snap action using a compression spring between tumbler and an articulated contact plate

Definitions

  • the invention relates to an electrical switching device, in particular rocker switch and rocker switch, for surface and flush-mounted installation, with a device socket with switching chambers, with at least one contact point arranged therein, formed by first and second fixed contacts and at least one movable contact, which has at least one movable contact can be actuated by an associated actuating element, and with connection contacts for electrical conductors to be connected.
  • Electrical switching devices for surface mounting as for flush mounting are generally known.
  • Electrical switching devices with rocker-type actuating elements are also known, which act on at least one movable contact.
  • rocker switches with a horizontal arrangement of the rocker are the most common.
  • a freedom of movement of at least approx. 2 mm must be ensured, since otherwise the perfect switching function cannot be guaranteed, for example because the contacts are not separated or are not moved sufficiently.
  • standing contact rockers are also used.
  • the advantage of low height which can be realized with the standing arrangement.
  • this is liable constructive variant, however, the disadvantage of increased assembly requirements, which results from the unstable position of the contact rocker during assembly.
  • At least two switching chambers are provided in parallel next to one another, in which the first and second fixed contacts and the connecting contacts of each contact point are each arranged parallel to one another at a distance from one another, and the at least one movable contact is designed as a rocker switch which can be pivoted at a distance from the fixed contacts is arranged hanging. Accordingly, each contact pair formed from the first and second fixed contacts is housed at a distance from one another in parallel planes in the respectively assigned switching chamber. The associated at least one movable contact is also located in each of these parallel planes.
  • the fixed contacts are only partially connected to each other and the other contacts are isolated from each other.
  • a plurality of movable contacts are then provided, each of which can be actuated separately in order to carry out a corresponding switching operation.
  • a decisive advantage of the design of the movable contact according to the invention proves itself in the space-saving, compact design of the hanging contact arrangement. This ensures a very flat design of the switching device designed according to the invention, in which the base does not dip into the respective wall opening deeper than 16 mm during flush mounting.
  • connection contacts which are conductively connected to the fixed contacts, for example in one piece or under mechanical pretension, are made using plug-in connection technology by means of automatically clamping connections, which are designed as screwless spring contacts, which simplifies the installation.
  • access openings for different conductor cross sections are preferably assigned to each connection contact.
  • connection contacts can engage in a form-fitting manner in the assigned switching chamber and the connection conductors can maintain their position if the device base breaks.
  • the at least one movable contact is mounted in a rocker bearing which is formed on a third fixed contact and whose pivot axis is arranged transversely to the parallel planes.
  • a preferred embodiment of the invention is characterized in that the at least one movable contact is T-shaped with a longitudinal web and a transverse web, that contact surfaces for contacting the fixed contacts are arranged on the longitudinal web and that the transverse web has support surfaces which are connected to the rocker bearing work together.
  • the crossbar formed on the at least one movable contact advantageously has a linear support on the rocker bearing. It is also favorable that the support surfaces on the crossbar are designed in a cutting shape.
  • the rocker bearing formed on the third fixed contact has a rectangular recess through which the movable contact passes, and that its transverse web is supported with its supporting surfaces on the edge of the recess.
  • two opposite recesses are formed locally, in which the crossbar engages.
  • a flat cam which cooperates with an associated actuating element, is formed on the movable contact piece above the transverse web as an extension of the longitudinal web.
  • the actuating element has an actuating surface facing the operating side and two switching journals facing the switching mechanism, which actuating journals cooperate with the associated movable contact.
  • the switching pins are formed with an intermediate space, the space between the switching pins advantageously receiving a compression spring which acts on the switching cam on the movable contact.
  • the compression spring can be designed as a helical spring, which is guided by a pin which is formed on the bottom of the actuating surface, and at its end facing the movable contact piece, a thrust washer can be provided with a central recess which receives the switching cam of the movable contact and itself is supported with its peripheral edge on the inside of the switching pin.
  • the crossbar can be beveled in a cutting shape on its upper side facing the switching pin.
  • a further embodiment of the invention is characterized in that firing pins act on the movable contact via the thrust washer and separate it in the case of welding with a fixed contact.
  • a further development of the invention can provide that the thrust washer rests linearly on the cutting-shaped crossbar and, when the actuating element is actuated, the switching rocker swivels from a first stable end position into a second stable end position.
  • three switching chambers equipped with fixed contacts are provided next to one another, a hanging switching or contact rocker being arranged as a movable contact in each switching chamber.
  • a plurality of rocker switches can be provided next to one another, an actuating element being assigned to each switching or contact rocker, which can be actuated independently of another actuating element, preferably in particular pivotable.
  • the several actuating elements arranged next to one another have a common axis, the ends of which are mounted in the device base.
  • each actuating element according to the invention can be provided with a light indicator which, depending on the circuit, serves as a switch position indicator or as an orientation light.
  • Another special feature of the switching device according to the invention is characterized in that either the first or the second fixed contacts of adjacent switching chambers are connected to one another in an electrically conductive manner and thereby also enable different circuit variants.
  • the contact or switching rocker is advantageously provided on its free end on both sides with contact rivets made of contact material, which cooperate with corresponding contact pieces on the first and second fixed contacts.
  • the design of the switching device according to the invention is particularly characterized in that it can optionally be designed simultaneously as a monostable and / or bistable switch in a housing with preferably a maximum of three switching contacts, the housing of which is subdivided into three switching tracks arranged next to one another, which switch contacts with the associated connecting contacts record and is arranged in the central region of the switching mechanism.
  • the central area of the housing is designed so that multi-pole circuits, but also 3x1-pole and 2x1-pole, can be implemented, for example, by means of diagonally guided contacts or by means of corresponding partition walls.
  • the connection contacts are designed so that single and multi-wire conductors with different cross sections can be plugged in and pulled out again by pressing release levers molded onto the housing.
  • connection contacts are positively mounted so that the conductor remains firmly in the connection chamber if the housing breaks.
  • the switch contacts are molded onto the connection contacts and are guided in their position in the housing in guide slots, so that manufacturing tolerances on the switch contacts have no influence on the quality of the switch.
  • the contact rocker is designed as a two-sided lever, the fulcrum of which is largely cutting-edge-shaped by attaching bevels and is mounted in a groove on a bearing contact.
  • the lower part of the contact rocker is provided with contact rivets that rest on the switch contacts.
  • the upper part of the rocker is also formed in a cutting shape at the point of application of a contact pressure spring and is provided in the center with a cam which is gripped by the contact pressure spring and when the switching mechanism is actuated the contact rocker is moved from a stable position to the other.
  • the bearing contact is provided in the area of the contact rocker bearing with a rectangular opening through which the contact rocker is mounted.
  • the contact pressure spring is guided on a pin on the actuating or switching element in order to prevent the spring from kinking and to hold it securely during assembly.
  • the release levers for the screwless spring clips of the connection contacts are molded onto the upper part of the housing by means of a film hinge. Their shape is provided such that this area can simultaneously accommodate a guide for a return spring for a button function of the switching device according to the invention.
  • the upper and lower parts of the housing are provided with eight latching hooks, by means of which they are positively connected to one another.
  • the four outer locking hooks are also provided with locking cams on which the support ring is locked.
  • a gap is provided between the latching hook and the base wall so that the latching hook can dodge when the support ring is installed.
  • the support ring is provided with two pockets in the middle, which center the housing on the support ring and support it downwards.
  • the bag is provided with an opening to accommodate spreads.
  • 4 tabs are formed on the support ring, which snap into place on the outer retaining tabs.
  • FIG. 1 shows an electrical switching device 10 with a base 11, 12 formed from a lower part 11 and an upper part 12 in a plan view and in FIG. 2 in a longitudinal section.
  • the base 11, 12 is connected to a support ring 14 for flush mounting, wherein both the base 11, 12 and the support ring 14 have an approximately square plan.
  • the dimensions of the base 11, 12 shown in plan view in Fig. 3 are smaller than that of the support ring 14 and provided so that the base 11, 12 can be inserted into a standard wall box according to DIN, the support ring then being located on the mounting surface creates and is supported on it.
  • Each switching track 16, 17, 18 in turn has at the opposite ends of the gates each have a chamber 20, 22, in which first and second fixed contacts 24, 26 and connection contacts 28 are inserted, and a central region 30 common to the adjacent switching tracks, in which at least one movable contact 32, not shown in FIG. 3, can be arranged, which cooperates with the fixed contacts 24, 26 as a switching contact.
  • each of the fixed contacts 24, 26 used in the three switching tracks 16, 17, 18 is assigned a common switching contact 32, or each fixed contact pair 24, 26 is assigned a single switching contact 32 or two in each case in adjacent switching tracks 16 , 17 arranged fixed contacts 24 and a contact 26 inserted in a switching path 16 located on the opposite side form with a movable contact 32 a contact point which is single-pole on one connection side and double-pole on the other connection side.
  • the fixed contacts 24, 26 and the movable contacts 32 are manufactured as a stamped and bent part or as a stamped part made of electrically conductive flat material, for example of a copper alloy.
  • the connection contacts 28 are preferably designed as screwless spring clips and can be actuated by so-called spring releasers 29. The connection contacts press the conductor against the underside of the fixed contacts.
  • connection contacts like the connection contacts 28, are positively adapted and inserted into the relevant chambers 20, 22 in the elongated switching tracks 16, 17, 18 provided in the base 11, 12. In the event of a housing breakage that may occur, this largely ensures that the conductor wires inserted into the connection contacts 28 maintain their position, that is to say remain fixed in the relevant connection chamber 20, 22.
  • the fixed contacts 24, 26 are provided with a contact tab 34, to which a largely switching arc-resistant contact plate 36 is attached, which cooperates with the movable contact 32.
  • the movable contact 32 is shown in an oblique view, which is T-shaped.
  • a design variant provides that instead of the contact tab 34, a support arm 38 is formed on the fixed contact 24, 26, which serves with a pivot bearing 40 for the movable contact 32, which is fork-shaped or a rectangular eyelet.
  • the movable contact 32 is designed as a vertically suspended, elongated contact rocker, which is designed as a contact rocker by means of support lugs 42 formed symmetrically on its two opposite longitudinal sides, by being pivotably supported on the pivot bearing 40 provided on the associated fixed contact 24, 26. While the end of the contact rocker 32 cooperating with the contact plate 36 is also covered on both sides with contact plate 44, the opposite end, which extends above the support lugs 42, is beveled like a knife edge and acted upon by a spring-loaded actuator 46.
  • This actuator 46 is formed by a mushroom with a flat bottom, which is used in a compression spring 48, which is designed as a helical compression spring, on which the contact rocker 32 is supported with a nose 43.
  • An actuating element 50 is used to actuate the contact rocker 32, which receives the actuator 46 and adjoins it in an approximately T-shaped manner with respect to the longitudinal axis of the contact rocker 32 and can be pivoted about a pivot axis that is parallel to the pivot axis of the contact rocker 32, the contact rocker 32 and the actuating element 50 in the switching end position each include an angle ⁇ 90 ° between them.
  • the actuator 46 or the compression spring 48 are inserted in the actuating element 50 in a recess 52, the side wall of which, at two diametrically opposite, i.e. perpendicular to the pivot axis, pass into molded projections 54, which are intended to ensure that, if the switch is actuated, they may be connected to one another welded contact plates 36, 42 of the fixed and movable contacts 24, 26, 32 can be safely separated by the projections 54 resting against the contact rocker 32 when the actuating element 50 is actuated and mechanically actuating it.
  • the upper part 12 of the base which, like the lower part 11, is formed from insulating material, preferably an injection-molded plastic, and which covers the interior of the lower part with the fixed contacts 24, 26 and the connecting contacts 28 therein and the at least one contact rocker 32 on the front side, is so-called Provide release levers 29 or spring releasers for the clamping springs of the connecting contacts 28, which are preferably formed in one piece.
  • the release levers 29 are advantageously hinged to the upper part 12 by means of a film hinge.
  • latching hooks 56 are used, which are arranged evenly distributed.
  • additional latching cams 58 are provided on the outer latching hooks 56 for the non-positive and positive connection with the support ring 14, which they engage behind on correspondingly formed clamping edges 60.
  • the support ring 14 in turn, which is preferably designed as a stamped sheet metal part, but can also be provided as a plastic injection molded part, is provided on both sides with a tab 62 for form-fitting anchoring of the housing base 11, 12 on the support ring 14, so that the base 11, 12 is centered in the support ring 14 is positioned.
  • a projection 64 is provided on the base on the two outer sides in each case as an extension of the central region 30, into which the associated tab 62 of the support ring engages.
  • this tab 62 and the molding 64 which are each provided with a through-hole 63, serve to hold a strut 66 by means of an expanding screw 68 engaging in the through-hole 63.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Tumbler Switches (AREA)
  • Slide Switches (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Control Of Electric Motors In General (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Switches With Compound Operations (AREA)
EP97106969A 1996-05-04 1997-04-26 Appareil de commutation électrique Expired - Lifetime EP0805469B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19618014A DE19618014A1 (de) 1996-05-04 1996-05-04 Elektrisches Schaltgerät
DE19618014 1996-05-04

Publications (3)

Publication Number Publication Date
EP0805469A2 true EP0805469A2 (fr) 1997-11-05
EP0805469A3 EP0805469A3 (fr) 1998-10-21
EP0805469B1 EP0805469B1 (fr) 2003-03-19

Family

ID=7793389

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97106969A Expired - Lifetime EP0805469B1 (fr) 1996-05-04 1997-04-26 Appareil de commutation électrique

Country Status (4)

Country Link
EP (1) EP0805469B1 (fr)
AT (1) ATE235101T1 (fr)
DE (2) DE19618014A1 (fr)
ES (1) ES2192632T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102592868A (zh) * 2012-02-24 2012-07-18 昆山利尔电气实业有限公司 一种转轴传动开关制造方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016102457A1 (de) 2015-12-04 2017-06-08 Abb Ag Kontaktsystem eines elektrischen Installationsschalters
EP3176798B1 (fr) 2015-12-04 2019-04-10 Abb Ag Système de contact d'un commutateur d'installation électrique

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1215797B (de) * 1962-11-09 1966-05-05 Berker Geb Herstellung verschiedener Installationsschalter mit Kipp- oder Wippenbetaetigung unter Benutzung eines einheitlichen Sockels
DE1976254U (de) * 1967-09-30 1968-01-04 Kirsten Elektrotech Kippschalter.
DE1758190A1 (de) * 1968-04-19 1971-01-14 Reisholz Stahl & Roehrenwerk Verfahren und Vorrichtung zur Herstellung von Rohstahlbloecken aus verschiedenen Werkstoffen
US3770920A (en) * 1972-02-09 1973-11-06 Leviton Manufacturing Co Rocker-type electrical switch
DE7726104U1 (de) * 1977-08-23 1977-12-01 Siemens Ag, 1000 Berlin Und 8000 Muenchen Elektrisches Schaltwerk
DE4135208A1 (de) * 1991-10-25 1993-04-29 Giersiepen Gira Gmbh Elektrisches installationsgeraet

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL104179C (fr) * 1957-10-12 1962-10-15
AT221627B (de) * 1957-10-30 1962-06-12 Busch Jaeger Duerener Metall Baueinheit für mehrere Installationsgeräte
DE1966266U (de) * 1966-06-22 1967-08-17 Busch Jaeger Duerener Metall Elektrischer installationsschalter, insbesondere wipp- oder tastschalter mit einer vergroesserten betaetigungswippe oder -taste.
DE3816107A1 (de) * 1988-05-11 1989-11-23 Asea Brown Boveri Schaltgeraetesockel
DE3914232C2 (de) * 1989-04-29 1997-12-04 Teves Gmbh Alfred Elektrischer, mit Such- und Funktionsbeleuchtung ausgestatteter Kippschalter

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1215797B (de) * 1962-11-09 1966-05-05 Berker Geb Herstellung verschiedener Installationsschalter mit Kipp- oder Wippenbetaetigung unter Benutzung eines einheitlichen Sockels
DE1976254U (de) * 1967-09-30 1968-01-04 Kirsten Elektrotech Kippschalter.
DE1758190A1 (de) * 1968-04-19 1971-01-14 Reisholz Stahl & Roehrenwerk Verfahren und Vorrichtung zur Herstellung von Rohstahlbloecken aus verschiedenen Werkstoffen
US3770920A (en) * 1972-02-09 1973-11-06 Leviton Manufacturing Co Rocker-type electrical switch
DE7726104U1 (de) * 1977-08-23 1977-12-01 Siemens Ag, 1000 Berlin Und 8000 Muenchen Elektrisches Schaltwerk
DE4135208A1 (de) * 1991-10-25 1993-04-29 Giersiepen Gira Gmbh Elektrisches installationsgeraet

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102592868A (zh) * 2012-02-24 2012-07-18 昆山利尔电气实业有限公司 一种转轴传动开关制造方法

Also Published As

Publication number Publication date
DE19618014A1 (de) 1997-11-06
ATE235101T1 (de) 2003-04-15
EP0805469A3 (fr) 1998-10-21
ES2192632T3 (es) 2003-10-16
EP0805469B1 (fr) 2003-03-19
DE59709536D1 (de) 2003-04-24

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