EP0180857B1 - Commutateur électrique étagé à commande rotative - Google Patents

Commutateur électrique étagé à commande rotative Download PDF

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Publication number
EP0180857B1
EP0180857B1 EP85113492A EP85113492A EP0180857B1 EP 0180857 B1 EP0180857 B1 EP 0180857B1 EP 85113492 A EP85113492 A EP 85113492A EP 85113492 A EP85113492 A EP 85113492A EP 0180857 B1 EP0180857 B1 EP 0180857B1
Authority
EP
European Patent Office
Prior art keywords
shaft
switch
cams
cam
bearing
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
EP85113492A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0180857A1 (fr
Inventor
Jean-Paul Heng
André Marmonier
Etienne Briguet
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.)
Baco Constructions Electriques SA
Cegelec SA
Original Assignee
Baco Constructions Electriques SA
Cegelec SA
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 Baco Constructions Electriques SA, Cegelec SA filed Critical Baco Constructions Electriques SA
Publication of EP0180857A1 publication Critical patent/EP0180857A1/fr
Application granted granted Critical
Publication of EP0180857B1 publication Critical patent/EP0180857B1/fr
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/02—Details
    • H01H19/03—Means for limiting the angle of rotation of the operating part
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/64—Encased switches adapted for ganged operation when assembled in a line with identical switches, e.g. stacked switches

Definitions

  • the present invention relates to a rotary electrical step switch: as described in the preamble of claim 1.
  • a switch is known from document EP-A-0 019 141.
  • Staged electrical switches conventionally comprise a plurality of contacts arranged in groups, for example in pairs, in cells, often called wafers, which are stacked one on the other.
  • Each contact of a group comprises at least one fixed element and one mobile element, these elements are electrically connected to connection terminals which are accessible from outside the switch to allow the connection of external conductive wires.
  • the movable elements of the contacts of a switch are actuated by a control shaft, rotating and common, this shaft generally traverses centrally, the different stages of the body which constitute the stacked cells and it projects at one of the ends, called front, of the switch to allow the mounting in engagement of a rotary control member, manual or of servo-control type.
  • connection terminals which are assigned to the various contact elements and which are staggered parallel to the control axis on the modules, must be installed so that they can be operated during the connection phase of the switch to the external electrical wires intended for connect them to electrical devices.
  • connection terminals must therefore take into account the fact that the switches are designed to be fixed to support structures capable of significantly restricting the possibilities of access and maneuvering of the terminals, after fixing the switches on their supports.
  • the switches are conventionally installed either according to a surface mounting for which the body of the switch is fixed to a support wall by its rear face, which is situated at the opposite end from that from which the control shaft exits. , the latter then being located with the rest of the body on the same side of this wall that it does not pass through, or again according to a front mounting for which the body of the switch is fixed to a support wall by its front face so that the control shaft, which comes out of this front face, crosses the wall and is sufficiently projecting to allow the fixing of a rotary control member.
  • connection terminals of a switch When the connection terminals of a switch are installed so as to have their actuation axes in planes at least roughly perpendicular to the control axis, it is generally easy to actuate the connection terminals, as long as the switch is not installed and the choice of one of the surface or front mounting does not cause any particular difficulties.
  • connection of the wires coming from the electrical devices to be served may not be carried out easily on the switches installed and that, conventionally to avoid the risk of a delicate or even impossible connection, the operation is carried out by two phases; one on the table, before installation of the switch, consists in connecting external auxiliary wires to the connection terminals of the switch, the other after installation of the switch, consists in connecting the auxiliary wires to the connections of a separate terminal block to which the wires lead devices to be served.
  • switches have been produced whose connection terminals are installed obliquely so as to have their actuation axes slightly inclined with respect to the axis of the control shaft from which they deviate as and when the 'We move away from the face of the switch provided for fixing this switch on a support. This makes it possible to have access to the switch connection terminals practically in all circumstances from the moment when rear access to the body of the switch remains possible.
  • the present invention proposes an adaptable switch allowing the two assemblies to be obtained simply by simple permutation of parts. constitutive, an easy adjustment of the protruding axis as well as possibly a modification of the number of stages.
  • the stepped electrical switch is intended to be secured by a fixing plate, located at one of its ends, on a support; it is designed to be actuated by means of a rotating shaft, capable of assuming at least two distinct angular positions for controlling, by means of cams, mobile elements of electrical contacts distributed in stacked cells which are crossed by the 'axis of the tree according to their stacking and which also contain the cams; electrical contacts also comprise fixed elements connected, in the cells which comprise them, to connection terminals accessible from outside the switch; the terminals are placed obliquely to the axis of the shaft, their respective actuation axes being slightly inclined relative to this axis of the shaft so as to converge towards the end of the switch carried by the plate fixation.
  • a switch according to the invention is characterized in that it comprises two conduits arranged along the axis of the control shaft, one in the fixing plate and the other in a fixed end plate located opposite of the fixing plate on the switch, to allow the projection of the shaft through at least one or the other of the two plates, each conduit allowing the rotation of the shaft and comprising a ring housing for at least an angular positioning ring fixed on the shaft to allow a limitation of the rotation of this shaft in cooperation with at least one complementary, fixed stop, formed in the corresponding ring housing from which the shaft projects, one of the conduits comprising a locking bolt in translation of the assembly formed by the shaft and the cams, aligned with it, which it controls, said locking bolt containing the ring housing of the conduit which comprises it and being pierced longitudinally by a canal for the passage of the ar bre allowing the latter to protrude from the switch if necessary.
  • the blocking latch is placed in the conduit of the switch end plate at the end of this conduit which is oriented towards the outside of the switch to allow mounting of the shaft and the cams through the end plate.
  • the ring housing provided in the blocking latch, is located at the end of this latch which faces the outside of the switch when the latch is in place, a seat for a cylindrical cam end being provided at the end of the lock which is turned towards the inside of the switch to allow the blocking in translation of the assembly formed by the shaft and the cams, via said bearing.
  • the cams ensure the immobilization in translation of the shaft by jamming a flange which is fixed on this shaft and which is held either between two superimposed cams, or between a cam and directly or indirectly a plate , so as to allow an adjustable projection of the shaft outside the switch both in front mounting and in surface mounting.
  • the switch comprises a cell ensuring the positioning of the control shaft and / or of the cams, near the fixing plate, by a bearing for positioning cam centered on the axis of the shaft and fitted with the contact cam which follows it in the stack of nested cams, said positioning cam having the same maximum diameter as the contact cams, so as to facilitate the introduction of the assembly formed by the shaft and by the cams through the end plate and cells.
  • FIG. 1 shows an electrical switch 1 intended to be fixed to a wall of a support 2 by means of a fixing plate 3 situated at one of the ends of the switch 1 considered along a longitudinal axis XX ', here combined with the axis of a control shaft 4 for actuating the movable elements of the electrical contacts of this switch, which are not shown in this figure.
  • control shaft 4 rotates cams 5 for actuating the movable elements of the contacts and conventionally a positioning cam 6, the electrical contacts also include fixed elements, not shown in this figure, which are connected to connection terminals, such as 7, for electrical wires, such as 8, coming from electrical devices external to the switch and not shown.
  • the electrical contacts are conventionally brought together in groups, generally of an even number of contacts, with their connection terminals and their actuating cams in cells which are stacked one on the other along the longitudinal axis XX ′ of the switch, such as cells 9 and 10 in Figure 2.
  • the terminals 7 can be of any suitable conventional type and in particular of the type with clamping jumper 28 carried by a screw 27 is fixed in a fixed conducting blade 24, such as terminal 7A1 with jumper 28A1, screw 27A1 and blade 24A1 on the Figure 5.
  • Each connection terminal 7 is located so as to be accessible from the outside to allow the insertion of the core of an electric wire such 8 and to be able to be operated for the connection of this wire to the thick headed.
  • connection is made by pushing, pulling, or screwing as shown for terminal 7 in FIG. 1, and it is necessary for the terminal to be accessible in a direction hereinafter called actuation axis and represented here by the YY 'axis.
  • actuation axis and represented here by the YY 'axis.
  • connection terminal 7 and its actuation axis YY ' are obliquely disposed relative to the axis XX' of the control shaft 4, the actuation axis YY 'being slightly inclined relative to the axis XX 'of the shaft so as to converge with the actuating axes corresponding to the other terminals in the direction of the fixing plate 3.
  • the switch 1 is designed to be mounted both in front mounting and in surface mounting, it is necessary to be able to bring out the shaft 4 either through the fixing plate 3 and the wall of the support 2, or through an end plate 12 closing the switch 1 opposite the fixing plate 3, since one obviously cannot fix the switch on a support by this end plate 12, without removing access to the connection terminals according to their axes of actuation.
  • two conduits 13 and 14 are provided, arranged along the axis XX 'of the control shaft 4, one through the fixing plate 3 and the other through the end plate 12, for allow the projection of the shaft 4 through at least one of the plates 3 or 12, either in the position presented on the left in solid lines or in the position on the right presented in thin lines in FIG. 1.
  • Each conduit 13, 14 allows the rotation of the shaft 4, when the latter passes through it and it has a ring housing 15 or 16 at one of its ends for at least one angular limitation ring, such as 17 rotating with the shaft 4 on which it is locked in rotation as will be seen later in connection with FIG. 6.
  • This angular limitation ring 17 ensures a limitation of the rotation of the shaft 4 on itself in connection with at least one fixed complementary stop of the ring housing, such as the complementary stop 18 of the ring housing 16, in the case not presented in FIG. 1 where the angular limitation ring 17 would be in this ring housing 16.
  • the duct 14 also includes a lock 19 for locking in translation the assembly formed by the shaft 4 and the cams 5 and 6 which it controls in the switch 1.
  • the latch 19 contains the ring housing 16 of the conduit 14 that it comprises.
  • the latch 19 is preferably housed and fixed in the end plate 12 on the outside of this plate and the ring housing 16 which it comprises is oriented towards the outside the switch.
  • the ring housing 15 is preferably also oriented towards the outside of the switch on the fixing plate and therefore towards the support 2.
  • the angular positioning ring or rings 17 are mounted in the ring housing 15 or 16 from which protrudes the control shaft 4 as a function of the front mounting or alternately projecting projection.
  • the front mounting switch (FIG. 2), which is therefore intended to have its shaft 4 passing through the fixing plate 3 and the non-illustrated support which carries it, plans to limit the rotation of this shaft 4 by one or here two rings of angular limitation 17, located in the ring housing 15 of the fixing plate in order to cooperate with the stop 18 of this ring housing.
  • the shaft 4 does not necessarily cross the entire switch because it is immobilized in translation by the cams 5 or 6 in a manner which will be discussed later.
  • the assembly formed by the shaft 4 and by the aligned cams 5 and 6 is introduced into the switch through the end plate 12 and the cells 10 and 9 and it is immobilized by the latch 19 which limits the movement of the cams 5, 6 between itself and the fixing plate 3, being provided like this with a bearing surface 20, respectively 22 for the ends of the cylindrical end pieces 21 of the terminal cams 5, 6 on either side of the assembly formed by these cams.
  • the surface-mounted switch is intended to have its shaft 4 passing through the end plate 12 (FIG. 3) or more precisely the latch 19 immobilized in this end plate.
  • the assembly formed by the cams 5 and 6 and the shaft 4 protruding from this assembly on the side of the cams 5, is introduced into the switch through the end plate 12 and the cells 10 and 9 and it is immobilized in translation by the latch 19 and the fixing plate via the bearing surfaces 20, 22 of these two elements as well as above.
  • the shaft 4 passes through the latch 19, via a channel 23 allowing its rotation; this is however limited, here by the two angular positioning rings 17, then housed in the ring housings 15,16 so as to cooperate with the respective stops 18 provided in this housing.
  • the shaft 4 does not necessarily cross the entire switch, being immobilized by the cams 5 or 6 in a manner described below.
  • the electrical switch 1 shown in Figure 4 is stepped along the axis XX 'of its control shaft 4 positioned in this figure for front mounting of the switch.
  • the different stages consist of the fixing plate 3, a positioning cell 9 and here of contact, one or more contact cells 10, such as 10A and 10B, and an end plate 12.
  • the stages are fixed to each other by known means not shown here for example by hooking claws of one on the edges of the next or by bolting.
  • the axis XX 'of the control shaft 4 passes through the various stages centrally and the shaft 4 is capable of projecting either through the fixing plate 3, via the axial duct 13 of this plate and the axial ring housing 15 where this conduit opens, or again in a manner not shown through the end plate 12 or more precisely the latch 19, via the axial conduit 14 and the ring housing 16 of this latch.
  • the shaft 4 is designed to drive a series of cams comprising a positioning cam 6 which comes into contact with the fixing plate 3 in the positioning cell 9 as well as contact cams 5, such as 5A or 5C, aligned behind the positioning cam 6 and up to the end plate 12.
  • the number of contact cams 5 is a function of the number of mobile elements of electrical contacts to be controlled.
  • two cams 5 are provided per cell for controlling two electrical contacts known in themselves. These contacts are each composed of two fixed elements 23 (FIG. 7), each connected to a fixed conductive strip 24 of a different connection terminal and able to be electrically connected together under the control of a cam 5 by a mobile element. 26, the latter being carried by a sliding pusher 25 actuated by the cam, and prestressed by a spring 35; such are in particular the fixed elements 23A1, 23A2 connected respectively one to the fixed blade of the terminal 24A1, the other to the blade of the terminal 24A2 and able to be electrically connected by the movable element 26A carried by the pusher 25A sliding under the action of the cam 5A ( Figures 4 and 7).
  • connection terminals 7 are placed obliquely with respect to the axis XX 'of the shaft 4 so as to have their respective actuation axes YY' slightly inclined with respect to this axis XX 'and converging in the direction of the fixing plate 3 of the switch, such as terminal 7C1 whose actuation axis YC1 - Y'C1 converges towards the axis XX 'beyond the fixing plate 3 and the support 2 in FIG. 5 .
  • the cams 5 and 6 are stacked along the axis XX ′ of the shaft 4 which is housed in at least some of them as shown in FIG. 4.
  • Each cam 5 has internally and successively an axial cylindrical bearing at circular section 29 (FIG. 8) extended internally by an axial polygonal imprint 30 for cam drive itself extended by an axial polygonal conduit 31 for shaft passage.
  • the axial polygonal duct 31 opens out on the other side of the cam 5 relative to the internal cylindrical bearing surface 29 and allows the passage of a shaft through the cam and the rotation lock of the cam on the shaft.
  • cam train 5A, 5A ', 5B, 5B', 5C, 5C ' it is therefore possible to drive all the cams 5 of a cam train, such as the cam train 5A, 5A ', 5B, 5B', 5C, 5C ', by a shaft penetrating into the polygonal conduit 31 of at least one of them as shown in FIG. 4 or the shaft 4 penetrates only into the cams 5C, 5C '.
  • the positioning cam 6 is housed in a particular cell 9 which in the example chosen also acts as a contact cell for the closest contacts.
  • the positioning cam 6 is traversed right through by a polygonal channel having the same cross section as the polygonal conduit 31 of the contact cams so that it too can be locked in rotation on the shaft 4. It is provided with a polygonal end piece 37 corresponding to the polygonal end pieces 34 of the contact cams 5, so as to be able to penetrate into a polygonal imprint 30 of contact cam in the same way as the latter and for an identical purpose, the cams 5 and 6 stacked along the axis XX 'thus being integral in rotation.
  • the positioning cam 6 has an axial end piece 36 with a circular cross section which is positioned in the duct 13 of the fixing plate 3 and it is supported on the bearing 22 provided on this fixing plate.
  • the shaft 4 and the cam train 5, 6 aligned along its axis XX ′ are immobilized in translation by the lock 19 between the bearing surface 20, on which the end of the polygonal end piece 34 of the last contact cam 5A rests , and the bearing surface 22, on which the cam 6 bears by its end opposite to the contact cams 5, when the train of cams is in place.
  • the shaft 4 comes to stop in translation in the cam train 5, 6 between the bearings 20, 22 by means of a flange 38 which is fixed to it and which is capable of being placed between two cams or between an end cam and the corresponding range as indicated below.
  • the positioning cam 6 cooperates with positioning pushers 39, 39 ′ (FIG. 9).
  • These positioning pushers are elastically applied against the profile of the positioning cam 6 by strong springs 40, 40 ′, these springs ensure that the shaft is held in position at the various angular positions provided and that the first part of the creation is created. rotation between two positions, a strong resistance to rotation which is designed to promote rapid switching at the electrical contacts.
  • the cam train 5, 6 is designed so that the positioning cam 6 has the same extension or maximum diameter as the contact cams 5 so as to be able to introduce the train, positioning cam at the head, through the plate 12 and the contact cells 10, until penetration of the positioning cam 6 into its cell 9.
  • the flange 38 of the shaft 4 is positioned in the switch 1 either between the geared cams, as shown in FIG. 4, or between a cam 5 or 6 located at the end and the bearing surface 20 of the corresponding latch 19 or 42 of plate 3.
  • the collar 38 is then housed at the bottom of the polygonal imprint 30 of a cam 5 under the polygonal end piece 34 of the cam 5 introduced into this imprint, such 38 between the bottom of the polygonal imprint of the contact cam 5C 'and the polygonal end of the positioning cam 6.
  • FIG. 10 thus schematically shows a surface mounting of a switch for which the flange 38 is placed between the bearing provided in the latch 19 of the end plate and the polygonal end piece 34 of the cam 5 situated at the end, near the latch 19.
  • FIG. 11 schematically shows a switch with a large number of contact cells, symbolized by their cams 5, where the shaft 4 is in front mounting and therefore passes through the fixing plate 3 against which the flange 38 of this shaft 4 is supported, being wedged between the end of the end piece 36 of the positioning cam 6 and the bearing provided on the fixing plate 3 for this cam 6.
  • Figure 12 shows a very large capacity switch composed by online association of two 1.1 'switches having their respective shafts 4, 4' same position as that shown in Figure 11.
  • the shaft 4 'penetrates through channel 23 through the latch 19 of the first switch so as to mesh with the cams 5 of this switch which are close to this latch and it is driven by the rotation of the shaft 4, the switches being secured by an assembly arrangement 40 classic no described here.

Landscapes

  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
EP85113492A 1984-10-26 1985-10-24 Commutateur électrique étagé à commande rotative Expired EP0180857B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8416446 1984-10-26
FR8416446A FR2572580A1 (fr) 1984-10-26 1984-10-26 Commutateur electrique etage a commande rotative

Publications (2)

Publication Number Publication Date
EP0180857A1 EP0180857A1 (fr) 1986-05-14
EP0180857B1 true EP0180857B1 (fr) 1989-01-04

Family

ID=9309043

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85113492A Expired EP0180857B1 (fr) 1984-10-26 1985-10-24 Commutateur électrique étagé à commande rotative

Country Status (7)

Country Link
US (1) US4724287A (pt)
EP (1) EP0180857B1 (pt)
JP (1) JPH0664969B2 (pt)
BR (1) BR8505341A (pt)
DE (1) DE3567313D1 (pt)
ES (1) ES289862Y (pt)
FR (1) FR2572580A1 (pt)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2886047A1 (fr) * 2005-05-18 2006-11-24 Tend Technology Co Ltd Commutateur modulaire a plusieurs etages

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FR2598553B1 (fr) * 1986-05-06 1994-09-16 Alsthom Cgee Commutateur rotatif multipolaire, en particulier commutateur a cames sous forme de galettes empilees, et procede d'execution de ce dernier
IT1217319B (it) * 1987-06-26 1990-03-22 Breter Spa Commutatore a camme
JP2923736B2 (ja) * 1994-08-18 1999-07-26 春日電機株式会社 多段階操作インタ−ロック付押釦開閉器
US5721449A (en) * 1996-02-20 1998-02-24 Advance Controls, Inc. Cam operated inverter bypass safety switch
JP3856567B2 (ja) * 1998-05-25 2006-12-13 アルプス電気株式会社 複合操作型電気部品
ES2158766B1 (es) * 1999-01-29 2002-03-01 Fontini Sa Interruptor manual.
DE102005019099A1 (de) * 2005-04-25 2006-10-26 Tend Technology Co., Ltd. Stufenschaltvorrichtung
JP5029107B2 (ja) 2007-04-06 2012-09-19 トヨタ紡織株式会社 車両ルーフ構造
EP2482299B1 (en) 2008-04-01 2013-09-25 Ewac Holding B.V. Electrical rotary switch
CN101826411B (zh) * 2009-03-05 2014-04-16 施耐德电器工业公司 机械式旋转开关
US10391059B2 (en) 2009-11-11 2019-08-27 Rapamycin Holdings, Inc. Oral rapamycin nanoparticle preparations and use
DE102010039415A1 (de) * 2010-08-17 2012-02-23 E.G.O. Elektro-Gerätebau GmbH Bedieneinrichtung und Bedienverfahren
US9136696B2 (en) * 2012-01-23 2015-09-15 Advance Controls, Inc Early break inverter bypass safety switch
US9181934B2 (en) * 2012-11-21 2015-11-10 The Boeing Company Rotary switch assembly for ion propulsion system
EP3131546B1 (en) 2014-04-16 2022-02-16 Rapamycin Holdings, Inc. Oral rapamycin preparation for use in treating feline chronic gingivo- stomatitis (fcgs)
US11965800B1 (en) * 2021-06-17 2024-04-23 The United States Of America As Represented By The Secretary Of The Navy Breakout box for testing periscope cable connectors

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2886047A1 (fr) * 2005-05-18 2006-11-24 Tend Technology Co Ltd Commutateur modulaire a plusieurs etages

Also Published As

Publication number Publication date
EP0180857A1 (fr) 1986-05-14
US4724287A (en) 1988-02-09
JPS61107618A (ja) 1986-05-26
FR2572580A1 (fr) 1986-05-02
DE3567313D1 (en) 1989-02-09
BR8505341A (pt) 1986-08-05
ES289862U (es) 1986-07-01
JPH0664969B2 (ja) 1994-08-22
ES289862Y (es) 1988-07-01

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