EP1930927A1 - Elektrischer Schalter mit kippendem Schaltglied - Google Patents

Elektrischer Schalter mit kippendem Schaltglied Download PDF

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Publication number
EP1930927A1
EP1930927A1 EP06425824A EP06425824A EP1930927A1 EP 1930927 A1 EP1930927 A1 EP 1930927A1 EP 06425824 A EP06425824 A EP 06425824A EP 06425824 A EP06425824 A EP 06425824A EP 1930927 A1 EP1930927 A1 EP 1930927A1
Authority
EP
European Patent Office
Prior art keywords
switching member
electric switch
switch
supporting element
electric 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.)
Withdrawn
Application number
EP06425824A
Other languages
English (en)
French (fr)
Inventor
Ennio Calderara
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.)
BTicino SpA
Original Assignee
BTicino SpA
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 BTicino SpA filed Critical BTicino SpA
Priority to EP06425824A priority Critical patent/EP1930927A1/de
Publication of EP1930927A1 publication Critical patent/EP1930927A1/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/24—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting
    • H01H1/26—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting with spring blade support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position

Definitions

  • the present invention relates to electric switches, and more particularly, switches of a type in which the switching is carried out due to a pivoting switching member which moves between two stable positions.
  • switch is meant herein both a device that opens and closes a single contact and a device that opens one contact and simultaneously closes another contact, and vice versa (diverter switch).
  • switches of the above kind belong to the prior art, generally including: at least two connection terminals, at least one fixed electric contact being electrically connected to one of the two connection terminals and a switching member, which is provided at one end thereof with at least one mobile electric contact and resting on a fulcrum or support that is electrically connected to the other of the two connection terminals.
  • These switches further include an operating mechanism to be manoeuvred by means of an axial push-button, or lever, or rocker key for moving the switching member such that the latter rotates to reach either one of its two stable positions.
  • the object of the present invention is to provide an electric switch which free of the drawbacks cited above with reference to prior art switches, or which is affected by these drawbacks in a very reduced manner as compared with prior art switches.
  • switch is meant herein both a device that opens and closes a single contact and a device that opens one contact and simultaneously closes another contact, and vice versa (diverter switch).
  • the electric switch 1 which is depicted in Fig. 1 with partially detached parts, and in the particular example is a push-button switch, comprises a supporting structure 2 made of insulating material, such as plastics, preferably and in a non-limiting manner approximatively having the shape of a parallelepiped with two pairs of side walls, smaller 3,4 and greater 5,6, respectively.
  • the side walls 3,4,5,6 are closed and joined to a bottom portion 7 of the supporting structure 2. Between the side walls and the bottom portion 7, the supporting structure 2 defines an inner chamber 8 facing, by means of an opening 9, outward of the supporting structure 2.
  • the bottom portion 7 has shaped walls defining a contact-holder structure 10 made of insulating material.
  • the contact-holder structure 10 preferably accommodates three connection terminals 11.1, 11.2, 11.3 (the latter can be seen only in Fig. 2 ), such as screw clamps, each being accessible via two openings, the one for having access to the screw of the clamp and the other to insert an electric lead in the clamp.
  • Two of the three connection terminals 11.1, 11.2, are connected, as one piece in this example, to respective sheet-metal tags 12.1, 12.2 (seen in Fig. 2 ) being in the contact-holder structure 10.
  • Each of these tags is provided with a fixed electric contact 13.1, 13.2, respectively, at one end thereof.
  • the third connection terminal 11.3 is connected, as one piece in this example, to L-shaped sheet-metal bar 14, which is arranged in the contact-holder structure 10 such that an edge 15 thereof protrudes in the direction of the opening 9 in a substantially central position relative to the fixed electric contacts 13.1, 13.2.
  • the switch 1 further includes an oscillating switching member 16 suitable to establish electric connections, which in this particular example of Fig. 1 is embodied by a pivoting jumper 16 made of metal.
  • the switching member will be hereinafter referred to as the "pivoting jumper" without however introducing any limitation thereto.
  • the pivoting jumper 16 is reverse saddle-shaped, having a rounded central profile and is connected within the inner chamber 8 of the supporting structure 2 in a pivoting manner about an axis perpendicular to the sheet plane.
  • the pivoting jumper 16 has a central seating part 17 in contact with the edge 15 of the tongue 14 and two arms having mobile electric contacts 18.1, 18.2 at the ends thereof.
  • the pivoting jumper 16 is such that it can be moved to rotate about its central seating part 17 in order to establish electric connections. It should be observed that the tongue 14, and particularly the edge 15 thereof, are a supporting element for the pivoting jumper 16.
  • the electric switch 1 further includes a control mechanism 20 to be associated with the supporting structure 2 at the opening 9 thereof and suitable to move the pivoting jumper 16.
  • a control mechanism 20 to be associated with the supporting structure 2 at the opening 9 thereof and suitable to move the pivoting jumper 16.
  • the control mechanism 20 is provided according to the teachings of the International Patent Application WO 2006/106554 .
  • control mechanism 20 includes a push-button 21 and means for mechanically coupling the push-button 21 to the supporting structure 2 such that the push-button 21 can be fastened to the supporting structure 2 while being movable relative thereto in a sliding direction substantially parallel to the axis of opening 9.
  • these mechanical coupling means include a holding and guide frame 22 for the push-button 21.
  • the push-button 21 includes an upper portion embodied by a key 23, a cover-platelet 23a being associated therewith.
  • Two helical compression springs 26 allow the push-button 21 to be held in the distal position, or rest position thereof, relative to the supporting structure 2.
  • the control mechanism 20 includes a control element 27 comprising a block 28 of insulating material and a spring-controlled pin 29, preferably made of metallic material.
  • the block 28 is mounted to the holding and guide frame 22 in a pivoting manner about an axis perpendicular to the sheet plane.
  • the spring-controlled pin 29 has a rounded tip and is biased by a spring (not seen in the figures) that is compressed in a cavity of the block 28 in order to provide an elastic connection between the block 28 and the underlying pivoting jumper 16, when the control mechanism 20 is fixed to the supporting structure 2.
  • the block 28 is shaped on top such as to have a cavity 32 with substantially step-shaped surfaces.
  • the control mechanism 20 further comprises a pressure transmission means 33, illustrated in phantom in Fig. 1 , which has two substantially pointed ends 34a, 34b.
  • This pressure transmission means 33 is attached to the push-button 21 below the key 23 in a pivoting manner about a third axis substantially perpendicular to the sheet plane.
  • Two foil springs 36a and 36b are arranged between the key 23 and the pressure transmission means 33 such that the latter is hold in a rest position, in which the ends 34a and 34b thereof are substantially equidistant from the key 23.
  • control mechanism 20 particularly with reference to the interaction of the latter with the pivoting jumper 16 is described in the above-mentioned International Patent Application WO 2006/106554 , and will not be further discussed herein.
  • the electric switch 1 further comprises an elastically deformable conductive element 30 that is interposed between the supporting element 14 and the pivoting jumper 16 to ensure the electric continuity between the supporting element 14 and the pivoting jumper 16.
  • this elastically deformable conductive element is a laminar elastic element 30, preferably made of phosphor bronze.
  • the laminar elastic element 30 has a curved profile, essentially U-shaped or V-shaped and has a middle area 34 that is preferably rounded, which rests on the supporting element 14, 15 and two side tongues 32, 33, preferably curved, which are arranged on opposite sides relative to said middle area 34 and suitable to interfere with the pivoting jumper 16.
  • the supporting element 14 includes a forward region 15 which acts as a rest point and fulcrum for the switching member 16, and includes a backward region 31 that acts as the rest point for the laminar elastic element 30.
  • the supporting element 15 is a metallic bar having the forward region 15 thereof substantially cusp-shaped and having the backward region 31 that is a recess or notch of the bar 14. It should be further observed that, by providing the width of the middle portion 17 of the pivoting jumper 16 to be of a greater size than the width of the recess 31, the pivoting jumper 16 is thus rested on two parts 15 of the bar 14, which are counter-posed relative to the recess 31. Furthermore, by providing the width of the middle portion 34 of the laminar elastic element 30 to be lower than the width of the recess 31, the middle portion 34 of the laminar elastic element 30 is received within the recess 31.
  • the middle region 34 of the laminar elastic element 30 has a lower width than the width of the two side tongues 32, 33 arranged on opposite sides relative to said middle area 34 and suitable to interfere with the pivoting jumper 16. Thereby, the laminar elastic element 30 is sandwiched between the supporting element 14 and the pivoting element 16.
  • the side tongues 32 and 33 of the laminar elastic element 30 are such as to interfere with a surface of the pivoting element 16 opposite the surface of the latter on which the spring-loaded pin 29 (seen in Fig. 1 ) is intended to slide upon operation.
  • Fig. 4 shows a possible variant embodiment of the switch 1 in Fig. 1 . Only a partial view of this variant embodiment has been illustrated in Fig. 4 , which corresponds the switch portion including the pivoting switching member 16, the elastically deformable conductive element 30 and a fixed electric contact 13.2. As may be appreciated in Fig. 4 , the teachings of the present invention can be also applied to a switch comprising a pivoting switching member 16 with an individual mobile contact 18.2.
  • the elastically-deformable conductive element 30 has roundings at opposite two of the end portions 32, 33 thereof. This contrivance, which can be however applied to the embodiment in Fig. 1 , advantageously facilitates the sliding of these end portions 32, 33 on the surface of the switching member 16 intended to interfere with these end portions.
  • a switch in accordance with the invention fully achieves the pursued object, in that the provision of an elastically deformable conductive element interposed between the switching member and the supporting element for the latter allows maintaining the electrical continuity between the supporting element and switching member even when, because of bounces, the switching member is lifted and gets detached from the supporting element.

Landscapes

  • Tumbler Switches (AREA)
EP06425824A 2006-12-07 2006-12-07 Elektrischer Schalter mit kippendem Schaltglied Withdrawn EP1930927A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06425824A EP1930927A1 (de) 2006-12-07 2006-12-07 Elektrischer Schalter mit kippendem Schaltglied

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06425824A EP1930927A1 (de) 2006-12-07 2006-12-07 Elektrischer Schalter mit kippendem Schaltglied

Publications (1)

Publication Number Publication Date
EP1930927A1 true EP1930927A1 (de) 2008-06-11

Family

ID=37911661

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06425824A Withdrawn EP1930927A1 (de) 2006-12-07 2006-12-07 Elektrischer Schalter mit kippendem Schaltglied

Country Status (1)

Country Link
EP (1) EP1930927A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106252116A (zh) * 2015-06-15 2016-12-21 吉徕·吉尔西本有限两合公司 用于模块化的电气开关装置的底座部件
CN107622903A (zh) * 2017-09-28 2018-01-23 苏州华之杰电讯股份有限公司 一种拨动开关

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3529109A (en) * 1968-03-12 1970-09-15 Sylvania Electric Prod Multiple circuit control switch with guide stops for limiting the vertical travel of a springlike movable contact
FR2041386A5 (de) * 1969-04-22 1971-01-29 Amelec
US4045650A (en) * 1976-01-29 1977-08-30 General Motors Corporation Jumper touch sensor current switching device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3529109A (en) * 1968-03-12 1970-09-15 Sylvania Electric Prod Multiple circuit control switch with guide stops for limiting the vertical travel of a springlike movable contact
FR2041386A5 (de) * 1969-04-22 1971-01-29 Amelec
US4045650A (en) * 1976-01-29 1977-08-30 General Motors Corporation Jumper touch sensor current switching device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106252116A (zh) * 2015-06-15 2016-12-21 吉徕·吉尔西本有限两合公司 用于模块化的电气开关装置的底座部件
EP3107111A1 (de) * 2015-06-15 2016-12-21 GIRA GIERSIEPEN GmbH & Co. KG Sockelteil für eine modulare elektrische schaltervorrichtung
CN106252116B (zh) * 2015-06-15 2019-08-06 吉徕·吉尔西本有限两合公司 用于模块化的电气开关装置的底座部件
CN107622903A (zh) * 2017-09-28 2018-01-23 苏州华之杰电讯股份有限公司 一种拨动开关
CN107622903B (zh) * 2017-09-28 2020-08-25 苏州华之杰电讯股份有限公司 一种拨动开关

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