EP4088297B1 - Elektrischer schalter - Google Patents

Elektrischer schalter Download PDF

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Publication number
EP4088297B1
EP4088297B1 EP20842314.5A EP20842314A EP4088297B1 EP 4088297 B1 EP4088297 B1 EP 4088297B1 EP 20842314 A EP20842314 A EP 20842314A EP 4088297 B1 EP4088297 B1 EP 4088297B1
Authority
EP
European Patent Office
Prior art keywords
button
electrical switch
pin
lever
main body
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
EP20842314.5A
Other languages
English (en)
French (fr)
Other versions
EP4088297A1 (de
EP4088297C0 (de
Inventor
Alberto Volpato
Antonio Cavalli
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.)
Vimar SpA
Original Assignee
Vimar 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
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Publication of EP4088297A1 publication Critical patent/EP4088297A1/de
Application granted granted Critical
Publication of EP4088297B1 publication Critical patent/EP4088297B1/de
Publication of EP4088297C0 publication Critical patent/EP4088297C0/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01H23/12—Movable parts; Contacts mounted thereon
    • H01H23/16—Driving mechanisms
    • H01H23/162—Driving mechanisms incorporating links interconnecting tumbler and contact arm
    • 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
    • H01H23/14—Tumblers
    • H01H23/143—Tumblers having a generally flat elongated shape
    • 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
    • H01H23/24—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button with two operating positions

Definitions

  • the present invention relates to an electrical switch capable of closing or switching electrical contacts, of the type comprising a switching mechanism, housed inside a main body capable of controlling the opening and closing of an electrical contact by an oscillation movement of a relative actuation element.
  • electro-mechanical switches through which electrical contacts are closed or switched are commonly used, for example for switching on or off light sources.
  • switches comprise a control mechanism, operable by a manual pressure action, which moves a movable anchor.
  • the movable anchor comprises a flexible conductive foil which is brought from a first position, in which an electrical contact is open, to a second position, in which the contact is closed.
  • the interface with which a user interacts with the switch control mechanism generally comprises a button.
  • the present invention relates to an electrical switch of the tilting type.
  • the button In a tilting control mechanism for switches, the button generally rotates between two positions, at which the switching of the electrical contact takes place.
  • the element interposed between the button and the movable contact-holder anchor is normally a pin which is pushed by a compression spring against the anchor, so that the displacement of the pin which follows the tilting of the button produces the oscillation of the movable contact-holder anchor when the dead point is overcome.
  • buttons of considerable length for example for aesthetic reasons or for needs related to the arrangement thereof on a wall of a house.
  • the buttons of considerable length used in the tilting control mechanisms for switches will have the drawback of being not very ergonomic.
  • the tilting angle of the button is generally roughly corresponding to that of the tilting angle of the pin, or more generally of the control mechanism.
  • the button of a tilting control mechanism will "sink” on one side while it will “project” on the other. This sinking and projection are accentuated by the length of the button, causing an operation that is not easy for the user and is not aesthetically pleasing.
  • the technical problem underlying the present invention is therefore that of providing an electrical switch which is structurally and functionally designed to overcome, at least in part, one or more of the drawbacks mentioned with reference to the cited prior art.
  • an object of the present invention is to provide an electrical switch which is particularly reliable and easily operable by the user.
  • the electrical switch of the present invention includes a mechanism for amplifying the oscillation movement of an actuation element which comprises a motion transformation element, preferably including a lever, connected to the main body and jointed to the actuation element itself.
  • the motion transformation element is associated with the switch button in such a way that said motion transformation element is urged by the tilting of the button so as to move the actuation element and obtain the opening and closing of an electrical contact.
  • the motion transformation element therefore is kinematically linked to the button, to the main body of the switch and to the actuation element which switches the electrical contact.
  • a kinematic chain is thus created where the movement of the button is transferred to a movable contact of the switch.
  • the tilting of the button urges the motion transformation element which in turn causes the actuation element to rotate.
  • the switch according to the present invention therefore makes it possible to reduce the angle of rotation of the button with respect to the angle of rotation of the actuation element designed for the switching action of the switch, limiting the sinking and protrusion of the button and improving the ergonomics and reliability with which the user may operate the switch.
  • the button rotation angle represents the inclination of the button with respect to a horizontal axis
  • the angle of rotation of the actuation element represents the inclination of the actuation element with respect to a horizontal axis.
  • the switching mechanism comprises a switching pin.
  • the actuation element includes a pin-holder support.
  • the pin may be slidably associated with the pin-holder support.
  • the motion transformation element comprises a pin.
  • this pin is inserted in an opening positioned on the button, preferably on a lower surface of the button.
  • the opening has a slot shape, preferably elliptical, so as to allow the pin, advantageously cylindrical in shape, to rotate and/or slide therein.
  • the openings may be made on the motion transformation and the pins may be made on the button.
  • the lever of the motion transformation element may comprise two longitudinal rods and a transverse rod, where each longitudinal rod comprises a first end and a second end.
  • the pin is made on one longitudinal rod, more advantageously on both.
  • the lever comprises a lever slot positioned at each first end and suitable for being associated with a respective lateral projection of a button-holder included in the main body.
  • Alternative embodiments are provided where the slots are made on the button-holder and the projections on the lever.
  • the lever comprises a relief positioned at each second end and suitable for being associated with a respective lateral hole of the pin-holder support.
  • the reliefs may be made on the pin-holder support and the holes on the lever.
  • both levers there are two levers opposite each other with respect to the pin-holder support, each comprising a pin. This allows the stability and reliability of the mechanism to be increased.
  • both levers will have the previously described features, for example longitudinal and transverse rods, lever slots and reliefs, arms, etc.
  • an electrical switch for example intended to be applied to a wall, according to methods which will be described in greater detail below, is indicated as a whole with the reference numeral 1.
  • the switch 1 is intended to be used in an electrical appliance of the type commonly referred to as a diverter, that is an electrical appliance which is used to control an electrical device, for example a lamp, from two different positions.
  • the switch 1 according to the present invention may be adopted in an independent module which may be installed on the wall and may be wired by means of terminal blocks 3 mounted on a main body 2.
  • the main body 2 may advantageously comprise fixing portions 21 arranged for connecting the electrical switch 1 to a support frame which may be fixed to the wall, the latter not shown in the figure.
  • mechanism 1 of the present invention may also find application in other apparatus for electrical systems, such as switches, inverters, push-buttons and the like.
  • the main body 2 is preferably box-shaped and is suitable for containing the terminal blocks 3 to which electrical cables of the system in which the switch 1 is used may be connected.
  • the terminal blocks 3 advantageously comprise a primary fixed contact 31 and a secondary fixed contact 32, which preferably form a phase contact and a castle, respectively.
  • a pair of secondary fixed contacts 32, 32' which may be selectively closed on the main contact 31.
  • the main body 2 comprises a button-holder 5.
  • the button-holder 5 is supported on a casing 20, which defines a volume of the main body 2 inside which a switching mechanism 6 is housed, the features of which will be illustrated in greater detail below.
  • the switching mechanism 6 may be configured in such a way as to control the opening and closing of an electrical contact between the primary contact 31 and the secondary contact 32.
  • a button 4 designed to actuate the control mechanism 1, is tiltably pivoted on the main body 2, preferably at the button-holder 5.
  • the button 4 is rectangular in shape.
  • the button 4 preferably comprises a support 40 and an over-button 41.
  • the button 4 comprises housings 43, suitable for being connected to protrusions included in the over-button 41, not visible in the figure.
  • the button-holder 5 is fixedly mounted to the casing 20 of the main body 2 of the appliance on which the switch 1 is used.
  • the button 4 is pivoting and, for this purpose, is supported on the button-holder 5 by means of a pair of seats 44, 44' in which a pair of protrusions 52 formed on the button-holder 5 are housed, respectively.
  • the protrusions 52 may be made on a pair of fins 51 included in the button-holder 5.
  • the switching mechanism 6 comprises an actuation element 8 which acts in such a way as to displace and/or deform a movable contact 7.
  • the switching mechanism 6 may comprise a switching pin 60, pressed by a deformable element 61 against the movable contact 7, the latter preferably formed by an oscillating anchor 70.
  • this configuration allows the switching mechanism 6 to operate so that the displacement of the switching pin 60 produces the oscillation of the anchor 70 when a dead point is overcome. Overcoming the dead point, which causes the anchor 70 to snap from a closed position to an open position of the fixed contact 31 and vice versa, preferably occurs when the switching pin 60 overcomes a substantially vertical position.
  • the switching pin 60 comprises an elongate section 64 and is slidably received inside a pin-holder support 80, preferably jointed to the main body 2, by methods described in greater detail below.
  • the switching pin 60 is integral in an oscillation movement of the pin-holder support 80 or, more generally, of the actuation element 8.
  • the deformable element 61 preferably a helical spring, is advantageously positioned in such a way as to oppose an approaching movement of the switching pin 60 towards the pin-holder support 80.
  • the switching pin 60 includes a shoulder 63 where one end of the deformable element 61 abuts.
  • the switching pin 60 comprises a joint 62 which acts on the anchor 70.
  • the joint 62 is hinged at a lower end 68 of the switching pin 60 on the opposite side with respect to the button 4.
  • the joint 62 has a T shape. Due to the double contact point of the joint, the stability of the connection between the switching pin 60 and the anchor 70 is improved, decreasing blockages or jamming.
  • the joint 62 may be C-shaped, fork-shaped, etc.
  • the pin-holder support 80 is jointed to the button-holder 5 so as to be able to rotate with respect to it.
  • the pin-holder support 80 comprises a projection 84 suitable for being inserted into a respective cavity 53 formed on the button-holder 5.
  • the cavity 53 is formed inside each fin 51.
  • the projections 84 comprise a respective cusp 84A which engages a corresponding recess 53A defined in the cavity 53.
  • the cavity 53 is preferably configured in such a way that the cusp 84A may move away from the recess 53A thus allowing a certain weakness to the joint.
  • the presence of the deformable element 61 allows the pin-holder support 80 to be urged towards the button-holder 5, keeping the cusp in the relative cavity.
  • the pin-holder support 80 advantageously comprises a central sleeve 81, preferably cylindrical, inside which the switching pin 60 and the deformable element 61 are inserted.
  • the pin-holder support 80 comprises a transverse partition 82 on which the deformable element 61 abuts.
  • the partition 82 preferably comprises a central hole 83 which allows the insertion of an upper end 69 of the switching pin 60, opposite to the anchor 70.
  • the upper end 69 advantageously comprises two opposing teeth which fit into the central hole 83 and make a snap connection.
  • the anchor 70 comprises a flexible conductive foil, preferably arc-shaped. On one end of the anchor 70 there is a contact area 71 of the movable contact 7. The movable contact 7 may be placed in contact with the secondary fixed contact 32 or moved away from it. In the preferred embodiment illustrated in the figure, in which the switch is a diverter, there are two contact areas 71, 71', one for each end of the anchor 70.
  • the anchor 70 has a centre 72 suitable for being coupled to an abutment surface 33 of the castle 32, even more preferably on a cusp 34 of such a surface 33.
  • the control mechanism 1 comprises a mechanism 9 for amplifying the oscillation movement of the actuation element 8 which allows the actuation element to perform an oscillation greater than that performed by the button 4.
  • the amplification mechanism 9 comprises a motion transformation element 90 connected to the main body 5 and jointed to the actuation element 8.
  • the motion transformation element 90 comprises a lever 90A, preferably hinged to said main body 2. Even more preferably, the lever 90A is pivoted to the button-holder 5 and to the pin-holder support 8.
  • the lever 90A may advantageously comprise a pin 91 suitable for being urged by the tilting of the button 4.
  • the pin 91 is coupled to an opening 45, visible in Figure 1 , positioned on the button 4, more preferably on a lower surface 42 of the button 4.
  • the opening 45 is in the form of a slot, in such a way as to allow some mobility to the pin 91 within the opening 45.
  • the two pins are arranged on opposing sides of the fulcrum axis of the button 4.
  • the control mechanism according to the present invention therefore makes it possible to reduce the angle of rotation of the button 4 with respect to the angle of rotation of the actuation element 8, and therefore, in preferred embodiments, of the switching pin 60, limiting the sinking and protrusion of the button 4 and improving the ergonomics and reliability with which the user may operate the switch 1.
  • Figure 4 shows the button rotation angle T and the actuation element rotation angle P.
  • the button rotation angle T represents the inclination of the button 4 with respect to a horizontal axis
  • the actuation element rotation angle P represents the inclination of the actuation element 8 with respect to a horizontal axis.
  • a button rotation angle T of about 1.5° corresponds to an actuation element rotation angle P of about 3.5°.
  • the motion transformation element 90 is hinged to the main body 2 at a first hinging point A, preferably at the button-holder 5.
  • the switch 1 has an elongate shape and the first hinge point A is arranged at one of the two longitudinal ends of the switch.
  • the motion transformation element 90 is advantageously jointed to the actuation element 8 at a second hinging point B.
  • the distance between the two hinge points A and B is greater than the distance between the second hinge point B and an oscillation axis C of the actuation element 8, as schematically illustrated in Figure 2 .
  • the lever 90A has a substantially H-shape, comprising two longitudinal rods 92, 92' and a transverse rod 93.
  • each longitudinal rod 92, 92' comprises a first end 94, 94' and a second end 95, 95'.
  • each first end 94, 94' includes a lever slot 96, 96' suitable for being connected in a respective lateral projection 56, 56' made on the button-holder 5.
  • each second end 95, 95' includes a lever relief 97, 97' suitable for being connected in a respective lateral hole 57, 57' made on the pin-holder support 80.
  • the lateral hole 57, 57' may be in the form of a slot, thus allowing a certain mobility to the relief 97 inside the corresponding hole, so as not to achieve perfect rotation but a roto-translation joint between the lever 90A and the actuation element 8.
  • the transverse rod 93 comprises an arm 98 which comes into contact with the button 4, in particular with the lower surface of the button 42.
  • levers 90A opposite each other with respect to the pin-holder support 80, each comprising a pin 91. It will be appreciated that the two levers 90A may be hinged at opposing ends of the switch.
  • the two pins 91 would be urged and would rotate the pin-holder support 80, switching the position of the anchor 70.
  • the tilting stroke of the button 4 is given by the position of the two pins 91, in particular the pin 91 on the left will tend to rise while the pin 91 on the right will tend to lower, with respect to the initial position of Figure 1 .
  • the electrical switch according to the present invention allows the tilting angle of the button 4 with respect to the actuation element 8 to be reduced, reducing the actuation force of the button, limiting the sinking and protrusion thereof and improving ergonomics. and the reliability with which the user operates the switch.

Landscapes

  • Tumbler Switches (AREA)

Claims (16)

  1. Elektrischer Schalter (1), umfassend:
    - einen Hauptkörper (2), der Befestigungsabschnitte (21) zum Verbinden des elektrischen Schalters (1) mit einem Tragrahmen umfasst, der an einer Wand befestigbar ist;
    - eine Taste (4), die kippbar am Hauptkörper (2) angelenkt ist und von einer Bedienperson durch Druck betätigbar ist;
    - einen Schaltmechanismus (6), der im Hauptkörper (2) untergebracht ist und zum Steuern des Öffnens und Schließens eines elektrischen Kontakts durch eine Schwingbewegung eines entsprechenden Betätigungselements (8) eingerichtet ist;
    - einen Verstärkungsmechanismus (9) zum Verstärken der Schwingbewegung des Betätigungselements (8), wobei der Verstärkungsmechanismus umfasst:
    - ein Bewegungsumwandlungselement (90), das mit dem Hauptkörper (2) verbunden ist, dadurch gekennzeichnet, dass das Bewegungsumwandlungselement mit dem Betätigungselement (8) verbunden ist, wobei das Bewegungsumwandlungselement (90) mit der Taste (4) verbunden ist, um die Taste (4) am Bewegungsumwandlungselement (90) zu halten, sodass das Bewegungsumwandlungselement (90) durch das Kippen der Taste (4) zum Bewegen des Betätigungselements (8) gemäß der Schwingbewegung angetrieben wird.
  2. Elektrischer Schalter (1) nach Anspruch 1, wobei das Bewegungsumwandlungselement (90) einen Stift (91, 91') und die Taste eine Öffnung (45), oder umgekehrt, umfasst, wobei der Stift (91, 91') mit der Öffnung (45) verbunden ist.
  3. Elektrischer Schalter (1) nach Anspruch 2, wobei die Öffnung (45) schlitzförmig ist.
  4. Elektrischer Schalter (1) nach Anspruch 2 oder 3, der zwei gegenüberliegende Stifte (91) umfasst, die zum Einsetzen in ein entsprechendes Paar von Öffnungen (45) eingerichtet sind.
  5. Elektrischer Schalter (1) nach einem der vorhergehenden Ansprüche, wobei der Schaltmechanismus (6) einen Stift (60) umfasst, der einen beweglichen Kontakt (7) antriebt, sodass der Kontakt von und in Richtung einer geschlossenen Position an einem festen Kontakt bewegt werden kann.
  6. Elektrischer Schalter (1) nach Anspruch 5, wobei der Stift (60) in einem Stifthalterträger (80) verschiebbar untergebracht ist, der im Betätigungselement (8) gebildet ist.
  7. Elektrischer Schalter (1) nach einem der vorhergehenden Ansprüche, wobei das Bewegungsumwandlungselement (90) einen Hebel (90A) umfasst, der am Hauptkörper (2) angelenkt ist.
  8. Elektrischer Schalter (1) nach Anspruch 7, wobei der Hebel (90A) zwei Längsstäbe (92, 92") und einen Querstab (93) umfasst, wobei jeder Längsstab (92, 92') ein erstes Ende (94, 94") und ein zweites Ende (95, 95") aufweist.
  9. Elektrischer Schalter (1) nach Anspruch 7 oder 8, wobei der Hebel (90A) einen Hebelschlitz (96, 96") aufweist, der an jedem ersten Ende (94, 94") positioniert ist und mit einem entsprechenden seitlichen Vorsprung (56, 56') eines im Hauptkörper (2) ausgebildeten Tastenhalters (5) verbunden ist.
  10. Elektrischer Schalter (1) nach einem der Ansprüche 7 bis 9, wobei der Hebel (90A) einen erhabenen Hebelabschnitt (97, 97") umfasst, der an jedem zweiten Ende (95, 95") positioniert ist und mit einer entsprechenden seitlichen Öffnung (57, 57") des Stifthalterträgers (80) verbunden ist, wobei die seitliche Öffnung (57, 57") vorzugsweise als Schlitz konfiguriert ist, um begrenzte Translationen des erhabenen Abschnitts (97, 97') in der seitlichen Öffnung (57, 57') zu ermöglichen.
  11. Elektrischer Schalter (1) nach einem der Ansprüche 8 bis 10, wobei der Querstab (93) einen Arm (98, 98') umfasst, der mit der Taste (4) in Berührung steht.
  12. Elektrischer Schalter (1) nach einem der Ansprüche 7 bis 11, wobei in Bezug auf den Stifthalterträger (80) zwei einander gegenüberliegende Hebel (90A) vorgesehen sind.
  13. Elektrischer Schalter (1) nach Anspruch 12, wobei die Hebel (90A) an der Taste (4) an gegenüberliegenden Seiten in Bezug auf eine Drehachse der Taste (4) befestigt sind, sodass das Schwingen der Taste (4) eine Abwärtsbewegung des einen Hebels und eine Aufwärtsbewegung des anderen Hebels bewirkt.
  14. Elektrischer Schalter (1) nach Anspruch 13, wobei jeder Hebel einen entsprechenden Stift (91) umfasst, der zum Unterbringen in einer entsprechenden Öffnung (45) konfiguriert ist, die an gegenüberliegenden Abschnitten der Taste (4) in Bezug auf die Drehachse ausgebildet ist.
  15. Elektrischer Schalter (1) nach einem der vorhergehenden Ansprüche, wobei der Stifthalterträger (80) einen Vorsprung (84) aufweist, der in einen entsprechenden Hohlraum (53) des Hauptkörpers (2) eingesetzt ist.
  16. Elektrischer Schalter (1) nach einem der vorangehenden Ansprüche in Abhängigkeit von Anspruch 2, wobei die Öffnung an einer unteren Fläche (42) der Taste (4) ausgebildet ist.
EP20842314.5A 2019-12-24 2020-12-24 Elektrischer schalter Active EP4088297B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102019000025546A IT201900025546A1 (it) 2019-12-24 2019-12-24 Interruttore elettrico
PCT/IB2020/062439 WO2021130721A1 (en) 2019-12-24 2020-12-24 Electrical switch

Publications (3)

Publication Number Publication Date
EP4088297A1 EP4088297A1 (de) 2022-11-16
EP4088297B1 true EP4088297B1 (de) 2024-03-27
EP4088297C0 EP4088297C0 (de) 2024-03-27

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EP20842314.5A Active EP4088297B1 (de) 2019-12-24 2020-12-24 Elektrischer schalter

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EP (1) EP4088297B1 (de)
IT (1) IT201900025546A1 (de)
WO (1) WO2021130721A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114005699A (zh) * 2021-10-29 2022-02-01 宁波公牛电器有限公司 一种开关
IT202200009998A1 (it) 2022-05-13 2023-11-13 Vimar Spa Interruttore elettrico

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5436421A (en) 1994-04-13 1995-07-25 Carlingswitch, Inc. Progressive switch
FR2886757B1 (fr) * 2005-06-07 2007-09-07 Legrand France Dispositif de commande a levier basculant, de debattement angulaire reduit

Also Published As

Publication number Publication date
WO2021130721A1 (en) 2021-07-01
EP4088297A1 (de) 2022-11-16
IT201900025546A1 (it) 2021-06-24
EP4088297C0 (de) 2024-03-27

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