EP3125267B1 - Control device for circuit breakers - Google Patents
Control device for circuit breakers Download PDFInfo
- Publication number
- EP3125267B1 EP3125267B1 EP16001625.9A EP16001625A EP3125267B1 EP 3125267 B1 EP3125267 B1 EP 3125267B1 EP 16001625 A EP16001625 A EP 16001625A EP 3125267 B1 EP3125267 B1 EP 3125267B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gear
- disconnecting
- slider
- circuit breaker
- rotor
- 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
Links
- 230000004913 activation Effects 0.000 claims description 10
- 230000033001 locomotion Effects 0.000 claims description 8
- 230000007935 neutral effect Effects 0.000 claims description 5
- 230000007246 mechanism Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/26—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/40—Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing
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- 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
- H01H71/02—Housings; Casings; Bases; Mountings
- H01H71/0264—Mountings or coverplates for complete assembled circuit breakers, e.g. snap mounting in panel
- H01H71/0271—Mounting several complete assembled circuit breakers together
- H01H2071/0278—Mounting several complete assembled circuit breakers together with at least one of juxtaposed casings dedicated to an auxiliary device, e.g. for undervoltage or shunt trip
Definitions
- the present invention relates to a control device for circuit breakers.
- the invention relates to a device for automatically resetting a residual current operated circuit breaker or another similar apparatus.
- circuit breakers adapted to prevent a fault current from causing danger for users and for the loads connected to the electrical line.
- a residual current operated circuit breaker disengages the line, thus interrupting the supply of power to the load or loads arranged downstream.
- Motorized devices are known which are adapted to reset a circuit breaker or to disengage it by means of a remote control.
- Prior art devices generally include a motor with a double winding, which is capable of rotating an actuation mechanism provided with a worm screw in one direction or the other depending on whether it is necessary to close or open the circuit breaker.
- Resetting devices are generally contained in a casing that can be associated with the circuit breaker so that the actuation mechanism acts on the drum of the handle of the circuit breaker.
- EP2131376 discloses a control device which includes a casing that can be coupled to a circuit breaker provided with a control for opening and closing the contacts; the casing includes a drum, which is mechanically connected to the control for opening and closing the contacts of the circuit breaker; the drum is turned by a single electric motor by means of a gear train driven by a worm screw.
- the gear train can turn the drum in one direction or the other by means of a rotation switching means, which includes a bar, moved by the gear train, which turns the drum alternately in one direction or the other, by virtue of the action of two contoured oscillating members.
- EP2131376 is much more compact than the previous devices; its dimensions are in fact reduced to the equivalent of a single module, as defined by DIN standards, by virtue of the adoption of a single motor and of the particular actuation mechanism, which allows to reverse the direction of rotation of the actuation drum.
- US2005/212628 discloses a circuit breaker configured to be remotely operated, wherein the decoupling takes place between levers.
- the aim of the present invention is to provide a control device for circuit breakers that is more compact than the motorized control devices known so far.
- an object of the invention is to provide a device that allows the automatic reclosing of circuit breakers.
- Another object of the invention is to provide a control device that is functionally and constructively improved with respect to the devices of the prior art.
- a further object of the invention is to provide a device that has a state in which the device cannot rearm the circuit breaker.
- a further object of the invention is to provide a device that is significantly more economical from the point of view of production.
- Another object is to provide a device which, by virtue of its particular constructive characteristics, is capable of giving the greatest assurances of reliability and safety in use.
- a control device for circuit breakers comprising a casing that can be coupled to an electrical device, such as a circuit breaker provided with a control member for opening and closing the contacts, said casing comprising a rotor that is mechanically associated with said control member for opening and closing the contacts of said breaker; said control device comprising an electric motor that drives a gear system by means of a worm screw, said gear system turning said rotor; said gear system comprising a last gear that is actuated by the motor and a pusher gear that is integral with said rotor; said control device being characterized in that it comprises a decoupling gear, which always meshes with said last gear, and a switching means adapted to move said decoupling gear between two operating positions: an engagement position, in which said decoupling gear meshes with said pusher gear, and a neutral position, in which said decoupling gear does not mesh with said pusher wheel; in said engagement position said motor transmits motion to said electrical device, such as a circuit breaker provided with a control member for opening
- control device for circuit breakers designated generally by the reference numeral 1
- the casing 2 has, at the upper face, a protrusion 4 in which a rotor 5 is placed.
- the control device also known as resetting device or resetting module, is studied to be arranged laterally adjacent to other modules and in particular to a circuit breaker 101.
- the kinematic system of the resetting device 1 is connected to the kinematic system of the circuit breaker 101 by means of a bar 102 having a triangular cross-section, which constitutes the rotation axis of the rotor 5, so the rotation of the rotor 5 corresponds exactly to the rotation of the drum of the circuit breaker 101, which is provided with the usual external actuation lever or handle 103.
- the device 1 has an electric motor 6, which actuates the rotor 5 by means of a gear system, generally designated by the reference numeral 7.
- the gear system 7 has a reduction gear train 8 driven by a worm screw 9 associated with the shaft of the motor 6.
- the reduction gear train 8 includes a last gear 10, which may or may not mesh with a pusher gear 11, which is integral with the rotor 5: when the pusher gear 11 meshes with the last gear 10, the rotation of the shaft of the motor 6 is transmitted to the rotor 5, which performs the operation for closing the handle 103 of the circuit breaker 101.
- the meshing of the last gear with the pusher gear 11 is performed by a decoupling gear 12, which always meshes with the last gear 10.
- the decoupling gear 12 is associated with the last gear 10 by means of a linkage 14, which allows the axis of the decoupling gear 12 to rotate with respect to the axis of the last gear 10, determining at least two operating positions: an engagement position, visible in Figures 1 , 7 , 13 and 15 , in which the decoupling gear 12 meshes with the pusher gear 11, and a neutral position, visible in Figure 11 , in which the decoupling gear 12 does not mesh with the pusher gear 11.
- the movement of the linkage 14, in order to couple or decouple the decoupling gear 12 and the pusher gear 11, is actuated by a disconnecting slider 16, which can move along its own longitudinal axis.
- Two connect-disconnect blades 17 are arranged on the disconnecting slider 16 and allow to supply power and remove power from an electronic board, not visible in the figures, which is arranged in the casing 2, in a region designated by the reference numeral 18.
- the disconnecting slider 16 has the function of closing the electric circuit of the electric board supplying power to the board and disconnecting a control circuit when the device is disabled.
- the disconnecting slider 16 furthermore, or as an alternative, has the function of engaging and disengaging the decoupling gear 12 of the gear system in order to convey motion to the rotor 5.
- the device 1 includes an activation member, constituted by a cover 19, which can be mechanically connected to, or disconnected from, the disconnecting slider 16 by means of a lever system 20.
- the disconnecting slider 16 is moved by the cover 19 when the cover 19 is rotated in the direction of activation of the system.
- the device 1 includes a locking lever 21 that is pivoted to the body 2, inside the protrusion 4, and is actuated by the rotor 5.
- the locking lever 21 has at least one position for mechanically locking the disconnecting slider 16 in the open position, as shown in Figure 7 .
- the locking lever 21 moves an indicator lever 22, which indicates the position of the contacts of the circuit breaker and/or of the disconnector.
- the device 1 includes two engagement members 23 which firmly engage the device 1 with the circuit breaker 101.
- the engagement members 23 may be made of a different material with respect to the body 2 so as to provide better flexibility.
- the engagement members 23 can be integrated in the body 2 during production or can be supplied separately to be installed during the coupling of the device 1 to the circuit breaker 101.
- the device 1 allows the automatic closure of the circuit breaker 101 by means of the gear system that transfers motion from the motor 6 to the rotor 5, which in turn is coupled to the handle 103 of the circuit breaker 101 by means of the bar 102.
- the decoupling gear 12 always meshes with the last gear 10 and its axis can rotate with respect to the axis of the last gear 10 between two operating positions: an engagement position, in which the decoupling gear 12 meshes with the pusher gear 11, allowing the rotor 5 to perform the operation of closing the handle 103, and a neutral position, in which the decoupling gear 12 does not mesh with the pusher gear 11 and does not allow transmission of motion from the motor 6 to the rotor 5.
- the two engagement and neutral positions are determined by the movement of the disconnecting slider 16 connected to the axis of the decoupling gear 12.
- the disconnecting slider 16 also has the function of closing the electric circuit of the electronic board, supplying power to the board, and of disconnecting the control circuit when the device is disabled.
- the disconnecting slider 16 is moved by the cover 19 when the cover 19 is rotated in the direction of activation of the system.
- the connect-disconnect blades 17, arranged on the disconnecting slider 16, allow to supply power to the electronic board and remove power from it.
- the rotor 5 performs a 90° rotation and moves the locking lever 21, which has two functions: mechanical locking of the disconnecting slider 16 and actuation of the indicator lever 22.
- the locking lever 21 performs the mechanical locking of the disconnecting slider 16 when the handle 103 of the associated circuit breaker 101 is in the open position and the cover 19 is open. In this condition, which is shown in Figures 10 and 11 , the locking lever 21 prevents the rotation of the cover 19, locking the sliding of the disconnecting slider 16 and therefore the activation of the resetting device.
- the locking lever 21 moves the indicator lever 22, which indicates the position of the contacts of the breaker and/or of the disconnector by means of the opening 24 provided in the upper part of the protrusion 4.
- the indicator lever 22 is in the I-ON position, i.e., the position in which the circuit breaker contacts are closed, in three cases:
- the indicator lever 22 is in the O-OFF position i.e., the position in which the contacts of the circuit breaker are open, when the handle 103 of the circuit breaker 101 is open and the cover 19 is open ( Figures 10 and 11 ).
- Figures 16-26 show a further embodiment of the control device, designated by the reference numeral 201.
- the device 201 is substantially similar to the embodiment shown in Figures 1-15 , but with an arrangement of some components that is rotated symmetrically with respect to the first embodiment.
- Device 201 has a sliding button 225 that has the function of locking the cover 19.
- the invention achieves the intended aim and objects, providing a compact resetting module that performs the automatic reclosing of modular automatic circuit breakers, with a solution that is simple and low in cost in order to allow mechanical decoupling of the handle of the associated circuit breaker when the activation member, known as cover, is actuated.
- the placement of the components inside the device allows to optimize the spaces assigned to mechanical components and to the electronics.
Landscapes
- Breakers (AREA)
- Electrophonic Musical Instruments (AREA)
- Selective Calling Equipment (AREA)
- Keying Circuit Devices (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
- Mechanisms For Operating Contacts (AREA)
Description
- The present invention relates to a control device for circuit breakers.
- More particularly, the invention relates to a device for automatically resetting a residual current operated circuit breaker or another similar apparatus.
- As is known, electrical systems are provided with circuit breakers adapted to prevent a fault current from causing danger for users and for the loads connected to the electrical line. When the presence of the fault current is detected, a residual current operated circuit breaker disengages the line, thus interrupting the supply of power to the load or loads arranged downstream.
- After the circuit breaker is disengaged, and once the correct operating conditions for the system have been restored, the residual current operated circuit breaker must be reset.
- Motorized devices are known which are adapted to reset a circuit breaker or to disengage it by means of a remote control.
- Prior art devices generally include a motor with a double winding, which is capable of rotating an actuation mechanism provided with a worm screw in one direction or the other depending on whether it is necessary to close or open the circuit breaker.
- Resetting devices are generally contained in a casing that can be associated with the circuit breaker so that the actuation mechanism acts on the drum of the handle of the circuit breaker.
- The known devices described above have the drawback of being rather bulky.
-
EP2131376 discloses a control device which includes a casing that can be coupled to a circuit breaker provided with a control for opening and closing the contacts; the casing includes a drum, which is mechanically connected to the control for opening and closing the contacts of the circuit breaker; the drum is turned by a single electric motor by means of a gear train driven by a worm screw. The gear train can turn the drum in one direction or the other by means of a rotation switching means, which includes a bar, moved by the gear train, which turns the drum alternately in one direction or the other, by virtue of the action of two contoured oscillating members. - The device described in
EP2131376 is much more compact than the previous devices; its dimensions are in fact reduced to the equivalent of a single module, as defined by DIN standards, by virtue of the adoption of a single motor and of the particular actuation mechanism, which allows to reverse the direction of rotation of the actuation drum. -
US2005/212628 discloses a circuit breaker configured to be remotely operated, wherein the decoupling takes place between levers. - The aim of the present invention is to provide a control device for circuit breakers that is more compact than the motorized control devices known so far.
- Within the scope of this aim, an object of the invention is to provide a device that allows the automatic reclosing of circuit breakers.
- Another object of the invention is to provide a control device that is functionally and constructively improved with respect to the devices of the prior art.
- A further object of the invention is to provide a device that has a state in which the device cannot rearm the circuit breaker.
- A further object of the invention is to provide a device that is significantly more economical from the point of view of production.
- Another object is to provide a device which, by virtue of its particular constructive characteristics, is capable of giving the greatest assurances of reliability and safety in use.
- This aim and these and other objects that will become better apparent hereinafter are achieved by a control device for circuit breakers, comprising a casing that can be coupled to an electrical device, such as a circuit breaker provided with a control member for opening and closing the contacts, said casing comprising a rotor that is mechanically associated with said control member for opening and closing the contacts of said breaker; said control device comprising an electric motor that drives a gear system by means of a worm screw, said gear system turning said rotor; said gear system comprising a last gear that is actuated by the motor and a pusher gear that is integral with said rotor; said control device being characterized in that it comprises a decoupling gear, which always meshes with said last gear, and a switching means adapted to move said decoupling gear between two operating positions: an engagement position, in which said decoupling gear meshes with said pusher gear, and a neutral position, in which said decoupling gear does not mesh with said pusher wheel; in said engagement position said motor transmits motion to said rotor, which performs an operation for closing said control member for opening and closing the contacts.
- Further characteristics and advantages will become better apparent from the description of preferred not exclusive embodiments of the invention, illustrated by way of nonlimiting example in the accompanying drawings, wherein:
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Figure 1 is a perspective view of the control device according to the present invention, shown in conditions for use applied to a circuit breaker; -
Figure 2 is another perspective view of the device, shown from the side of the circuit breaker; -
Figure 3 is a perspective view of the device; -
Figure 4 is a perspective view of an engagement member; -
Figure 5 is a plan view of the device; -
Figure 6 is a side view of the side of the device intended to be coupled to the circuit breaker; -
Figure 7 is a side view of the device, which shows the side that lies opposite the one associated with the breaker; -
Figure 8 is a plan view of the device associated with the circuit breaker; -
Figure 9 is a detail view of the region of application of an engagement member; -
Figure 10 is a plan view of the device associated with the circuit breaker, shown in the condition in which the circuit breaker is open and the resetting device is deactivated; -
Figure 11 is a side view of the device in the condition of the preceding figure; -
Figure 12 is a plan view of the device associated with the circuit breaker, shown in the condition in which the circuit breaker is closed and the device is in the activation step; -
Figure 13 is a side view of the device in the condition of the preceding figure; -
Figure 14 is a plan view of the device associated with the circuit breaker, shown in the condition in which the circuit breaker is closed and the device is activated; -
Figure 15 is a side view of the device in the condition of the preceding figure; -
Figure 16 is a perspective view of the control device according to another aspect of the invention, shown in conditions for use applied to a circuit breaker; -
Figure 17 is another perspective view of the device of the preceding figure, shown from the side of the circuit breaker; -
Figure 18 is a plan view of the device of the preceding figure; -
Figure 19 is a side view of the device of the preceding figure, showing the side intended to be coupled to the circuit breaker; -
Figure 20 is a plan view of the device of the preceding figure associated with the circuit breaker, shown in the condition in which the circuit breaker is open and the resetting device is deactivated; -
Figure 21 is a side view of the device in the condition of the preceding figure; -
Figure 22 is a plan view of the device of the preceding figure associated with the circuit breaker, shown in the condition in which the circuit breaker is closed and the device is in the activation step; -
Figure 23 is a side view of the device in the condition of the preceding figure; -
Figure 24 is a detail view of the region of application of an engagement member of the device ofFigure 23 ; -
Figure 25 is a plan view of the device ofFigures 16-23 associated with the circuit breaker, shown in the condition in which the circuit breaker is closed and the device is activated; -
Figure 26 is a side view of the device in the condition of the preceding figure. - With reference to the cited figures, the control device for circuit breakers according to the invention, designated generally by the
reference numeral 1, has acasing 2, which has the classic standardized shape and forms, at therear face 3, a means for engagement with other apparatuses associated with an omega rail (not shown) according to the DIN standards. - The
casing 2 has, at the upper face, aprotrusion 4 in which arotor 5 is placed. - The
control device 1, also known as resetting device or resetting module, is studied to be arranged laterally adjacent to other modules and in particular to acircuit breaker 101. - The kinematic system of the
resetting device 1 is connected to the kinematic system of thecircuit breaker 101 by means of abar 102 having a triangular cross-section, which constitutes the rotation axis of therotor 5, so the rotation of therotor 5 corresponds exactly to the rotation of the drum of thecircuit breaker 101, which is provided with the usual external actuation lever orhandle 103. - The
device 1 has anelectric motor 6, which actuates therotor 5 by means of a gear system, generally designated by thereference numeral 7. - The
gear system 7 has areduction gear train 8 driven by aworm screw 9 associated with the shaft of themotor 6. - The
reduction gear train 8 includes alast gear 10, which may or may not mesh with apusher gear 11, which is integral with the rotor 5: when thepusher gear 11 meshes with thelast gear 10, the rotation of the shaft of themotor 6 is transmitted to therotor 5, which performs the operation for closing thehandle 103 of thecircuit breaker 101. - The meshing of the last gear with the
pusher gear 11 is performed by adecoupling gear 12, which always meshes with thelast gear 10. - The
decoupling gear 12 is associated with thelast gear 10 by means of alinkage 14, which allows the axis of the decouplinggear 12 to rotate with respect to the axis of thelast gear 10, determining at least two operating positions: an engagement position, visible inFigures 1 ,7 ,13 and15 , in which the decouplinggear 12 meshes with thepusher gear 11, and a neutral position, visible inFigure 11 , in which thedecoupling gear 12 does not mesh with thepusher gear 11. - The movement of the
linkage 14, in order to couple or decouple the decouplinggear 12 and thepusher gear 11, is actuated by a disconnectingslider 16, which can move along its own longitudinal axis. - Two connect-
disconnect blades 17 are arranged on the disconnectingslider 16 and allow to supply power and remove power from an electronic board, not visible in the figures, which is arranged in thecasing 2, in a region designated by thereference numeral 18. - The disconnecting
slider 16 has the function of closing the electric circuit of the electric board supplying power to the board and disconnecting a control circuit when the device is disabled. The disconnectingslider 16 furthermore, or as an alternative, has the function of engaging and disengaging the decouplinggear 12 of the gear system in order to convey motion to therotor 5. - The
device 1 includes an activation member, constituted by acover 19, which can be mechanically connected to, or disconnected from, the disconnectingslider 16 by means of alever system 20. - The disconnecting
slider 16 is moved by thecover 19 when thecover 19 is rotated in the direction of activation of the system. - The
device 1 includes alocking lever 21 that is pivoted to thebody 2, inside theprotrusion 4, and is actuated by therotor 5. - The
locking lever 21 has at least one position for mechanically locking the disconnectingslider 16 in the open position, as shown inFigure 7 . - The
locking lever 21 moves anindicator lever 22, which indicates the position of the contacts of the circuit breaker and/or of the disconnector. - The
device 1 includes twoengagement members 23 which firmly engage thedevice 1 with thecircuit breaker 101. - The
engagement members 23 may be made of a different material with respect to thebody 2 so as to provide better flexibility. - The
engagement members 23 can be integrated in thebody 2 during production or can be supplied separately to be installed during the coupling of thedevice 1 to thecircuit breaker 101. - The
device 1 according to the present invention allows the automatic closure of thecircuit breaker 101 by means of the gear system that transfers motion from themotor 6 to therotor 5, which in turn is coupled to thehandle 103 of thecircuit breaker 101 by means of thebar 102. - The
decoupling gear 12 always meshes with thelast gear 10 and its axis can rotate with respect to the axis of thelast gear 10 between two operating positions: an engagement position, in which thedecoupling gear 12 meshes with thepusher gear 11, allowing therotor 5 to perform the operation of closing thehandle 103, and a neutral position, in which thedecoupling gear 12 does not mesh with thepusher gear 11 and does not allow transmission of motion from themotor 6 to therotor 5. - The two engagement and neutral positions are determined by the movement of the disconnecting
slider 16 connected to the axis of thedecoupling gear 12. - The disconnecting
slider 16 also has the function of closing the electric circuit of the electronic board, supplying power to the board, and of disconnecting the control circuit when the device is disabled. The disconnectingslider 16 is moved by thecover 19 when thecover 19 is rotated in the direction of activation of the system. - The connect-
disconnect blades 17, arranged on the disconnectingslider 16, allow to supply power to the electronic board and remove power from it. - The
rotor 5 performs a 90° rotation and moves the lockinglever 21, which has two functions: mechanical locking of the disconnectingslider 16 and actuation of theindicator lever 22. - The locking
lever 21 performs the mechanical locking of the disconnectingslider 16 when thehandle 103 of the associatedcircuit breaker 101 is in the open position and thecover 19 is open. In this condition, which is shown inFigures 10 and 11 , the lockinglever 21 prevents the rotation of thecover 19, locking the sliding of the disconnectingslider 16 and therefore the activation of the resetting device. - Also, the locking
lever 21 moves theindicator lever 22, which indicates the position of the contacts of the breaker and/or of the disconnector by means of theopening 24 provided in the upper part of theprotrusion 4. - The
indicator lever 22 is in the I-ON position, i.e., the position in which the circuit breaker contacts are closed, in three cases: - when the
handle 103 of thecircuit breaker 101 is closed and thecover 19 is open (Figures 12 and 13 ); - when the
handle 103 of thecircuit breaker 101 is closed and thecover 19 is closed (Figures 14 and 15 ); - when the
handle 103 of thecircuit breaker 101 is open and thecover 19 is closed (the contacts of the circuit breaker are open but the resetting device can proceed with closure). - The
indicator lever 22 is in the O-OFF position i.e., the position in which the contacts of the circuit breaker are open, when thehandle 103 of thecircuit breaker 101 is open and thecover 19 is open (Figures 10 and 11 ). -
Figures 16-26 show a further embodiment of the control device, designated by thereference numeral 201. - The
device 201 is substantially similar to the embodiment shown inFigures 1-15 , but with an arrangement of some components that is rotated symmetrically with respect to the first embodiment. - In
Figures 16-26 , the reference numerals that are identical to the numerals used inFigures 1-15 designate identical elements. -
Device 201 has a slidingbutton 225 that has the function of locking thecover 19. - In practice it has been found that the invention achieves the intended aim and objects, providing a compact resetting module that performs the automatic reclosing of modular automatic circuit breakers, with a solution that is simple and low in cost in order to allow mechanical decoupling of the handle of the associated circuit breaker when the activation member, known as cover, is actuated.
- The placement of the components inside the device allows to optimize the spaces assigned to mechanical components and to the electronics.
Claims (9)
- A control device for circuit breakers, comprising a casing that can be coupled to an electrical device, such as a circuit breaker provided with a control member for opening and closing the contacts, said casing comprising a rotor (5) that is mechanically associated with said control member for opening and closing the contacts of said breaker; said control device comprising an electric motor (6) that drives a gear system by means of a worm screw (9), said gear system turning said rotor; said gear system comprising a last gear (10) that is actuated by the motor and a pusher gear (11) that is integral with said rotor; said control device being characterized in that it comprises a decoupling gear (12), which always meshes with said last gear, and a switching means adapted to move said decoupling gear between two operating positions: an engagement position, in which said decoupling gear meshes with said pusher gear, and a neutral position, in which said decoupling gear does not mesh with said pusher wheel; in said engagement position said motor transmits motion to said rotor, which performs an operation for closing said control member for opening and closing the contacts.
- The device according to claim 1, characterized in that said decoupling gear is associated with said last gear by means of a linkage (14); said linkage allowing the axis of said decoupling gear to rotate with respect to the axis of said last gear, determining said two functional positions.
- The device according to claim 2, characterized in that said switching means comprises a disconnecting slider (16) that can move along its longitudinal axis.
- The device according to claim 3, characterized in that two connect-disconnect blades (17) are arranged on said disconnecting slider; said blades allowing to supply power to, and remove power from, an electronic board arranged in said casing.
- The device according to claim 3, characterized in that said disconnecting slider has a function of closing the electric circuit of the electronic board, supplying power to said board and disconnecting a control circuit when said device is disabled; said slider further having, or having as an alternative, a function of engaging and disengaging said decoupling gear in said gear system in order to transfer motion to said rotor.
- The device according to claim 3, characterized in that it comprises an activation member that is constituted by a cover that is pivoted to said body.
- The device according to claim 6, characterized in that said cover is mechanically connected to said disconnecting slider by means of a lever system; said disconnecting slider being moved by said cover when said cover is turned in the direction of activation of the system.
- The device according to claim 3, characterized in that it comprises a locking lever (21) that is pivoted to said body and is actuated by said rotor; said locking lever having at least one position for mechanical locking said disconnecting slider in the open position and accordingly locking said cover, preventing it from reaching the position for activation of the device; said locking lever also moving an indicator lever that is configured to indicate the position of the contacts of the circuit breaker and/or of the disconnector.
- The device according to one or more of the preceding claims, characterized in that it comprises engagement members that are configured to firmly engage said device with said circuit breaker; said engagement members being made of flexible material.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITUB2015A002631A ITUB20152631A1 (en) | 2015-07-30 | 2015-07-30 | CONTROL DEVICE FOR SWITCHES |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3125267A1 EP3125267A1 (en) | 2017-02-01 |
EP3125267B1 true EP3125267B1 (en) | 2018-06-13 |
Family
ID=54601895
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16001625.9A Active EP3125267B1 (en) | 2015-07-30 | 2016-07-25 | Control device for circuit breakers |
Country Status (4)
Country | Link |
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EP (1) | EP3125267B1 (en) |
CN (1) | CN106409544B (en) |
ES (1) | ES2684069T3 (en) |
IT (1) | ITUB20152631A1 (en) |
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EP3597973B1 (en) * | 2018-07-20 | 2020-12-16 | Siemens Schweiz AG | Gear element and actuator with a return spring and with a self-releasing gear lock |
CN109461632B (en) * | 2018-12-29 | 2023-09-08 | 浙江海格电力有限公司 | Intelligent moulded case circuit breaker |
CN110752715B (en) * | 2019-11-07 | 2021-05-07 | 泰安市泰和电力设备有限公司 | Automatic control device with adjustable motor rotating speed |
CN111048328B (en) * | 2020-01-14 | 2020-09-01 | 永康串行电子有限公司 | Air electric switch capable of automatically closing |
CN112002623A (en) * | 2020-08-25 | 2020-11-27 | 上海麦豆电气有限公司 | Be applied to single modulus width executor of autoeclosing |
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US7061349B2 (en) * | 2004-03-29 | 2006-06-13 | General Electric Company | Circuit breaker configured to be remotely operated |
ITMI20081009A1 (en) * | 2008-06-03 | 2009-12-04 | Gewiss Spa | CONTROL DEVICE FOR SWITCHES |
FR2994330B1 (en) * | 2012-08-02 | 2014-09-12 | Hager Electro Sas | AUXILIARY TYPE ACTUATOR APPARATUS OF A LINE PROTECTION APPARATUS |
CN202948891U (en) * | 2012-12-03 | 2013-05-22 | 杭州凯雅捷科技有限公司 | Automatic reclosing transmission mechanism |
-
2015
- 2015-07-30 IT ITUB2015A002631A patent/ITUB20152631A1/en unknown
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2016
- 2016-07-25 EP EP16001625.9A patent/EP3125267B1/en active Active
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CN106409544A (en) | 2017-02-15 |
EP3125267A1 (en) | 2017-02-01 |
ITUB20152631A1 (en) | 2017-01-30 |
CN106409544B (en) | 2019-06-14 |
ES2684069T3 (en) | 2018-10-01 |
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