EP1441376A1 - Appareil électrique avec un interrupteur télécommandé - Google Patents

Appareil électrique avec un interrupteur télécommandé Download PDF

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Publication number
EP1441376A1
EP1441376A1 EP04075081A EP04075081A EP1441376A1 EP 1441376 A1 EP1441376 A1 EP 1441376A1 EP 04075081 A EP04075081 A EP 04075081A EP 04075081 A EP04075081 A EP 04075081A EP 1441376 A1 EP1441376 A1 EP 1441376A1
Authority
EP
European Patent Office
Prior art keywords
switch
opening
way
motor
operated
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
EP04075081A
Other languages
German (de)
English (en)
Other versions
EP1441376B1 (fr
Inventor
Marcello Re
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
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Filing date
Publication date
Application filed by BTicino SpA filed Critical BTicino SpA
Publication of EP1441376A1 publication Critical patent/EP1441376A1/fr
Application granted granted Critical
Publication of EP1441376B1 publication Critical patent/EP1441376B1/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
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/66—Power reset mechanisms
    • H01H71/70—Power reset mechanisms actuated by electric motor

Definitions

  • the present invention relates to an electrical apparatus comprising a switch and an actuator device associated with the switch and, in particular, an electrical apparatus as defined in the preamble of Claim 1.
  • actuator devices associated with the switches that are to be remote-controlled.
  • An actuator carries out the switching operations (opening or closing) of a switch by using a form of energy other than manual.
  • actuators use an electric motor to move the operating lever of the switch from the opening position to the closing position, and vice versa, in response to a corresponding control signal.
  • the switches are provided with a rapid-detachment mechanism: in particular, when the operating lever is moved from the closing position to the opening position, this mechanism is activated as soon as a predetermined intermediate position is reached and imparts a sudden acceleration upon the mobile contact and the operating lever and thus to render the opening action of the switch more rapid.
  • a drawback of the known equipment consists of the fact that the actuator devices call for the use of very fast and relatively powerful motors in order to take due account of the high opening speed of the switch. Indeed, if slower motors were to be used, though always sufficient for correct performance of the closing operation, the rapid detachment mechanism would tend to drag the motor to a high speed or the motor to tend to act as a brake for the detachment mechanism and slow down the opening operation. In any case the equipment would experience a malfunction that could cause damage to the switch or the motor.
  • the known actuators do not permit normal manual operation of the switch. This may constitute a serious difficulty in some application, for example in the case of the main switch of the electrical installations of an apartment: in this case, in fact, when the power supply to the electric motor of the actuator comes to lack, the user should still be able to operate the switch manually, at least for opening it.
  • One aim of the present invention is to provide an electric apparatus of the type defined at the beginning in which the actuator does not call for an electric motor more powerful than would be necessary for closing the switch and in which the switch can also be operated manually.
  • Another purpose of the invention is to propose an electric apparatus of the type defined at the beginning in which the switch can be opened by means of a remote command and in such a way that it will not be possible to close it again.
  • an electrical apparatus 100 comprises a bipolar electrical switch 106 and a motor-operated actuator device 103.
  • the switch 106 is enclosed in a box-like body 107 having two pairs of openings 109 (only one pair can be seen in the drawing) on two opposite sides to give access to corresponding terminals of the switch.
  • An operating lever 110 projecting from the front surface of the body 107, is mobile and can rotate about an axis 11 between a position 110' and a position 110" (shown by means of broken lines) corresponding, respectively, to the open position and the closed position of the switch.
  • the switch comprises a rapid-detachment mechanism (known as such and not shown on the drawing) that, whenever the to e operating lever is moved from the closed position 110" towards the open position 110' until it reaches an intermediate release position 110" ' ( represented by means of broken lines), imparts a sudden acceleration upon the operating lever 110 in such a way as to avoid or reduce to a minimum the formation of an electric arc between the switch contacts.
  • a rapid-detachment mechanism (known as such and not shown on the drawing) that, whenever the to e operating lever is moved from the closed position 110" towards the open position 110' until it reaches an intermediate release position 110" ' ( represented by means of broken lines), imparts a sudden acceleration upon the operating lever 110 in such a way as to avoid or reduce to a minimum the formation of an electric arc between the switch contacts.
  • a slot 113 on each of the sides of the body 107 grants access to a control organ of the rapid-detachment mechanism.
  • This organ has a bed 114 that, when the operating lever becomes displaced from the opening position 110'. to the closing position 110" becomes likewise displaced from an opening position 114" (represented by means of a continuous line) to a closing position 114' (represented by means of a broken line).
  • the control organ does not move until the control lever has reached the release position 110"', after which it performs a snap movement, so that the bed comes to find itself in the opening position 114'.
  • a small stress of the control organ that tends to shift the bed from the closing position to the opening position will cause the rapid-detachment mechanism to snap into action and therefore a rapid opening of the switch.
  • the switch may be coupled with a protection device that, mounted by the side of the switch with a pin in the bed 114, will respond to an overload situation by moving the pin in such a way as to cause the opening of the associated switch.
  • the actuator device 103 which likewise is provided with a box-like body 117, on one side has an opening 118 with elements for connecting it to a supply source and a remote control device and a bar 154 capable of rotating about an axis that, when the device is mounted by the side of the switch, coincides with the axis of rotation of the operating lever 110.
  • the bar 154 is shaped in such a way as to have a longitudinal channel 157 in which the end of the operating lever 110 can be inserted.
  • a side 158 of the box-like body 117 is provided with a slot 159 from which there projects a pin 160 that, when the actuator device 103 is mounted by the side of the switch 106, becomes engaged with the bed 114 of the control organ of the rapid-detachment mechanism of the switch.
  • the switch 106 and the actuator device 103 are normally mounted on a rail (not shown) and kept together by a rigid L-shaped element 166 that on one side is inserted in an opening 172 of the body 107 of the switch 106 and, on the other side, is fixed to the body 117 of the actuator device 103 by means of a screw 181.
  • the actuator device 103 comprises an electric motor 11 ( Figure 3) that rotates in one direction only, kinematic coupling mechanisms between the motor axis and the rotatable bar 154 that make it possible to drag the operating lever 110 into the closing position without preventing its manual operation either before or after the position change, a disk 50 operated by the motor, a diverter or two-way switch 13 with a control lever 20 and a pivotable support arm 51 of the pin 160.
  • Figure 2 an electric motor 11 ( Figure 3) that rotates in one direction only, kinematic coupling mechanisms between the motor axis and the rotatable bar 154 that make it possible to drag the operating lever 110 into the closing position without preventing its manual operation either before or after the position change, a disk 50 operated by the motor, a diverter or two-way switch 13 with a control lever 20 and a pivotable support arm 51 of the pin 160.
  • FIG 3 shows the electrical connections needed for controlling the closing and opening of the switch 106 through remote control means, in this example two push-button switches Pc and Pa accessible to the user of the installation fed via the switch 106.
  • the latter is coupled with the actuator device 103, which is connected to a supply source 12.
  • the two-way diverter switch 13 is operated by the motor 11 via a cam 55 formed on the disk 50: its position depends on the angular position of the disk 50.
  • the diverter 13 is shown with its lever 20 in the position it assumes when the switch is open following an opening action by the motor. In this position, indicated by the reference number 2 in Figure 3, the diverter 13 connects a first terminal of the source 12 to a terminal of the closing push-button Pc.
  • the other terminal of the push-button Pc is connected to a first terminal of the motor 11.
  • the second terminal of the motor 11 is connected to the second terminal of the source 12.
  • the second position of the lever 20 of the diverter 13 is the position it assumes when the switch is closed by closing action of the motor. In this position ( Figure 5) the diverter 13 connects the first terminal of the source 12 to a terminal of the opening push-button Pa.
  • the other terminal of the push-button Pa is connected the first terminal of the motor 11.
  • the disk has a second cam 56 that, depending on the angular position of the disk 50, will either keep the pin 160 fixed in a first position (A) that corresponds to the opening or detachment position of the switch or will leave it free to move between this first position and a second position (C) that corresponds to the closing position of the switch.
  • Figures 2 and 3 show the situation in which the switch 106 is open after an opening action by the motor. More particularly, the diverter 13 is in the position 2 and the pin 160 is in the position A corresponding to the open condition of the switch: in this position a manual displacement of the operating lever 110 of the switch or of the bar 154 towards the closing position will not permit the switch to be closed, because the detachment mechanism of the switch is activated by the pin 160 fixed in position A corresponding to the opening position of the switch. The closing of the switch is possible only by means of the control motor.
  • the closing of the closing push-button Pc will permit the following actions to be performed in succession: energization of the motor 11, rotation of the disk 50, which will bring the cam 56 into an angular position in which the pin 160 is free to move to the position in which the detachment mechanism is not activated, operation of the kinematic mechanism (not shown), which - acting on the bar 154 - brings the operating lever into the closing position of the switch and displacement of the diverter 13 into the position 1, because the cam 55 rotates as far as an angular position in which no load acts on the command lever 20.
  • the switch In this situation, represented in Figures 4 and 5, it is possible for the switch to be both opened and closed manually.
  • the switch is to be opened by the motor starting from the situation of Figures 4 and 5, it is sufficient to close the push-button switch Pa. More particularly, the following successive actions will take place: the motor is energized, the diverter 13 is brought back into position 2 by the cam 55 and the pin 160 is brought back and maintained in the opening position A, i.e. in the position in which the detachment of the switch takes place; the action of detachment brings the operating lever 110 of the switch 106 into the opening position, and at the same time also drags the bar 154 into the opening position: that is to say, the system returns into the situation of Figures 2 and 3.
  • the bypass switch 14 is operated directly or indirectly by the switch 106 in such a way as to be closed when the switch 106 is open and open when the switch 106 is closed.
  • the bypass switch can be incorporated in the actuator device 103 - in a manner that is known as such and not therefore shown on the drawings - to be operated directly by the bar 154.
  • the motor is energized via the diverter 13 in position 1 and via the bypass switch 14 until such time as the cam 55 will not have brought the diverter 13 in position 2.
  • the system thus returns to the situation represented in Figures 2 and 3 and the switch 106 can be closed by operating the closing push-button Pc.
  • the switch 106 is controlled by the motor only for closing purposes, i.e. when the operating speed is not critical, while it is controlled by the rapid detachment mechanism when its contacts have to be opened. It should be noted that the same detachment mechanism is utilized for bringing the actuator device 103 back into the starting position for motor-operated closure. Consequently, the apparatus in accordance with the invention can be realized by using a relatively small motor and is therefore economic and does not occupy a great deal of space.
  • a switch Pg normally open, is connected in parallel with the opening push-button Pa.
  • the switch Pg is operated by a control device 140 connected to the supply source 12, which can be the same electricity distribution network, to obtain an energy supply and control signals from it, for example signals sent by the electricity supplier by means of waves conveyed through the supply network itself.
  • the control device acts 140 also on an enabling switch 141, inaccessible to the user and placed in series with the motor 11.
  • an opening signal is sent to the control device 140. If the switch 106 happens to be closed, so that the two-way switch 13 will be in position 1, the opening command will cause the motor 11 to become energized, the opening of the switch 106 (as in the case when the opening push-button is operated) and the activation of the timed actuator 142. After a predetermined interval of time, at least equal to the time needed for a motor-operated opening of the switch 106, the timed actuator 142 causes the permanent opening of the enabling switch 141.
  • the switch 106 can no longer be closed by the user either by means of the motor, because the motor can no longer be energized, or by hand, because the pin 160 is in position A corresponding to the condition of an open switch, that is to say, in the position in which a manual operation of the operating lever 110 does not cause the switch to close, because the detachment mechanism continues to be active. If the apparatus is to be brought back to normal functioning, the enabling switch 141 must first be closed and this can be done only by the intervention of the personnel of the electricity supply undertaking, preferably by means of a remote control device.
  • the cam 56 may be omitted, so that the pin 160 will always be free to move between the positions (A and C) corresponding to the opening and closing positions of the switch; furthermore, with a view to signalling a detachment of the switch 106 due to an overload there may be provided an acoustic or light signal device that becomes activated by a microswitch controlled by a lever mechanism operated by the pin 160.

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  • Mechanisms For Operating Contacts (AREA)
EP04075081A 2003-01-22 2004-01-13 Appareil électrique avec un interrupteur télécommandé Expired - Lifetime EP1441376B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000021A ITRM20030021A1 (it) 2003-01-22 2003-01-22 Apparecchio elettrico con interruttore comandato a distanza.
ITRM20030021 2003-01-22

Publications (2)

Publication Number Publication Date
EP1441376A1 true EP1441376A1 (fr) 2004-07-28
EP1441376B1 EP1441376B1 (fr) 2010-09-01

Family

ID=29765620

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04075081A Expired - Lifetime EP1441376B1 (fr) 2003-01-22 2004-01-13 Appareil électrique avec un interrupteur télécommandé

Country Status (4)

Country Link
EP (1) EP1441376B1 (fr)
DE (1) DE602004028885D1 (fr)
ES (1) ES2351884T3 (fr)
IT (1) ITRM20030021A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITRM20090143A1 (it) * 2009-03-27 2010-09-28 Bticino Spa Apparecchio elettrico modulare con barra di accoppiamento ad una leva di comando di un ulteriore apparecchio elettrico modulare
CN104157475A (zh) * 2014-06-30 2014-11-19 浙江天正智能电器有限公司 用于小型断路器的自动合闸传动机构及小型断路器

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0034966A1 (fr) * 1980-02-25 1981-09-02 Merlin Gerin Commande électrique d'un disjoncteur basse tension
EP0572970A1 (fr) * 1992-06-02 1993-12-08 Mitsubishi Denki Kabushiki Kaisha Dispositif de commande électrique pour un disjoncteur
EP0872867A2 (fr) * 1997-04-18 1998-10-21 Bticino S.P.A. Ensemble électrique avec dispositif de commande pour un disjoncteur
EP0883149A2 (fr) * 1997-05-22 1998-12-09 Bticino S.P.A. Ensemble électrique avec dispositif d'actionnement pour disjoncteur, comprenant des moyens de signalisation de défaut

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0034966A1 (fr) * 1980-02-25 1981-09-02 Merlin Gerin Commande électrique d'un disjoncteur basse tension
EP0572970A1 (fr) * 1992-06-02 1993-12-08 Mitsubishi Denki Kabushiki Kaisha Dispositif de commande électrique pour un disjoncteur
EP0872867A2 (fr) * 1997-04-18 1998-10-21 Bticino S.P.A. Ensemble électrique avec dispositif de commande pour un disjoncteur
EP0883149A2 (fr) * 1997-05-22 1998-12-09 Bticino S.P.A. Ensemble électrique avec dispositif d'actionnement pour disjoncteur, comprenant des moyens de signalisation de défaut

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITRM20090143A1 (it) * 2009-03-27 2010-09-28 Bticino Spa Apparecchio elettrico modulare con barra di accoppiamento ad una leva di comando di un ulteriore apparecchio elettrico modulare
CN101847530A (zh) * 2009-03-27 2010-09-29 布蒂克诺公司 具与另一电器设备控制杆连接的连接杆的模制化电器设备
EP2234139A1 (fr) 2009-03-27 2010-09-29 Bticino S.P.A. Appareil électrique modulaire doté d'une tige de couplage avec un niveau de contrôle d'un autre appareil électrique modulaire
RU2524161C2 (ru) * 2009-03-27 2014-07-27 Бтичино С.П.А. Модульный электрический аппарат с соединительным рычагом для управления рычагом добавочного модульного электрического аппарата
CN101847530B (zh) * 2009-03-27 2014-08-13 布蒂克诺公司 具与另一电器设备控制杆连接的连接杆的模制化电器设备
CN104157475A (zh) * 2014-06-30 2014-11-19 浙江天正智能电器有限公司 用于小型断路器的自动合闸传动机构及小型断路器
CN104157475B (zh) * 2014-06-30 2016-03-02 浙江天正智能电器有限公司 用于小型断路器的自动合闸传动机构及小型断路器

Also Published As

Publication number Publication date
ITRM20030021A0 (it) 2003-01-22
DE602004028885D1 (de) 2010-10-14
ES2351884T3 (es) 2011-02-11
EP1441376B1 (fr) 2010-09-01
ITRM20030021A1 (it) 2004-07-23

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