CN101568984B - Fault current protection device, switching mechanism and system - Google Patents
Fault current protection device, switching mechanism and system Download PDFInfo
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- CN101568984B CN101568984B CN2008800013409A CN200880001340A CN101568984B CN 101568984 B CN101568984 B CN 101568984B CN 2008800013409 A CN2008800013409 A CN 2008800013409A CN 200880001340 A CN200880001340 A CN 200880001340A CN 101568984 B CN101568984 B CN 101568984B
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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
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
- H01H71/526—Manual reset mechanisms which may be also used for manual release actuated by lever the lever forming a toggle linkage with a second lever, the free end of which is directly and releasably engageable with a contact structure
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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
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/128—Manual release or trip mechanisms, e.g. for test purposes
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Abstract
The present invention relates to a switching mechanism (1) of a fault current protection device (30) for switching a circuit breaker which is arranged on a carrier plate (2), having a rotatably mounted handle (3), a bracket (4) which is coupled to the handle (3), wherein a first end (5) of the bracket (4) is arranged on the handle (3) outside the rotation axis of the handle (3), and a catch (7) which is connected in an articulated manner to the second end (6) of the bracket (4) and has a groove (8) for guiding a pin (10) of a rotatably mounted switching lever (9) of the switching mechanism (1), having a rotatably mounted half-shaft (11) with a catching edge (12), wherein the catching edge (12) is designed to grasp an end (13) of the catch (7), having a first spring element (14) which is connected to the catch (7) and/or the switching lever (9) and can be loaded in a spring-elastic manner when the catch (7) and/or the switching lever (9) is moved. The invention also relates to a fault current protection device having a switching mechanism of this type, and to a system with a fault current protection device, having a switching mechanism of this type, and a circuit breaker.
Description
Technical field
The present invention relates to a kind of switching device that is used for circuit-breaker is carried out the fault current protection device of make-break operation.In addition, the invention still further relates to a kind of fault current protection device and a kind of system, said system has fault current protection device and the circuit-breaker that is arranged in said fault current protection device next door.
Background technology
Fault current protection device is the switchgear that in a kind of time that when breaking down (particularly insulation fault) in electric equipment and the electrical system, is being no more than 200ms the fault place is broken off.That is to say that fault current protection device is the protection equipment of electrical network.When current path made a mistake (for example from human body, flowing through), fault current protection device can break off the monitored circuit that links to each other from remaining electrical network.For this reason, fault current protection device can be compared the current strength of initial current with the current strength of return current.
The effect that is connected the fault current protection device between electrical network and the electric equipment is to make electric current from transducer, to flow through, and just both flows to electric equipment from electrical network, flows to electrical network from electric equipment again.As long as the insulation situation in the electric equipment is intact, it just should be same big coming and going electric current.But when insulation measures goes wrong, the one part of current that flows into electric equipment just might flow through fault place (being the insulation fault place) and shell, even from the operating personnel's of electric equipment health, flow through.Fault current protection device just can recognize the magnetic energy imbalance through its transducer from the difference between current of 10mA, and trigger current cuts off function.
Failure current protection switch (FI switch; FI is a fault current) be given for specific electrical system, as be used for construction site, residential building, function building (like office building or department store) and industry.
Under failure condition, fault current protection device through rapid opening operation with human body and its indirectly or the shock current that directly touches isolate.In the protection equipment that when all short circuits and shorted to earth, breaks off; Fault current protection device is unique a kind of protection equipment that general protection is provided; Even if fault current that partial short circuit and part shorted to earth cause occurs (in this case; Fuse and circuit-breaker can not break off electric current, because this fault current part is less than the rated current of these protection equipment), fault current protection device also can provide corresponding protection.
Have composite type fault current/circuit-breaker (FI/LS switch) in addition, this switch is integrated in route protection and personal safe protection's function in the equipment.
Can be that 6A to 125A, specified fault current are that the two poles of the earth, three utmost points and four utmost point FI modules of 10mA, 30mA, 100mA and 300mA are carried out follow-up installing additional on circuit-breaker by rated current.Need be commonly called differential current protection equipment (DI protection equipment or DI switch) during the detection failure electric current by the fault current protection device of boost voltage.
Relevant DI module does not have own switch contact with the irrelevant FI module of line voltage with line voltage, but they can be used as optional equipment and be installed on the circuit-breaker (LS switch), and the contact of circuit-breaker is used.Wherein, the switching device in the fault current protection device (being FI module or DI module) links to each other with the parts of circuit-breaker through coupling device.Fault current can produce electric pulse in fault current protection device.Can utilize this pulse to trigger the switching device in the fault current protection device (being FI module or DI module) through magnetic relay.In this process, circuit-breaker also by switch coupled device triggering with it, break off by its contact, thereby with circuitry cuts.After insulation fault is got rid of, should earlier fault current protection device be connected, to guarantee the normal operation of fault-current protection function.Again circuit-breaker is connected subsequently, thereby led to user's circuit.Therefore, FI module or DI module are protection equipment, but not switchgear.
When breaking down electric current, the trip unit of fault current protection device (particularly magnetictrip) is used for voltage signal is converted into mechanical movement.For example, this mechanical movement can be rotatablely moving of switch lever or crooked switch member, or the linear movement of push rod.
Known fault current protection device switching device structure is extremely complicated, takies very big space at fault current protection device or differential current protection equipment domestic demand.Used up to now switching device can carry out make-break operation to a plurality of contacts of FI protection switch, and is complementary with the FI module.The requisite space of this type switching device is quite big, can't make up with single horizontal pitch.
Summary of the invention
The present invention provides a kind of fault current protection device switching device; This switching device is stored energy (for example elastic energy) in a simple manner; So that utilize these energy to trigger the circuit-breaker that links to each other through coupling device, the power consumption equipment circuit with downstream breaks off from electrical network whereby.This switching device is simple in structure, compact with the fault current protection device with it.A kind of system with fault current protection device and circuit-breaker is provided in addition, and when breaking down electric current, circuit breaks off in this system simply and rapidly mode.
According to the present invention, this purpose is reached through a kind of switching device, a kind of fault current protection device and a kind of system that has fault current protection device and be arranged in the circuit-breaker on its next door.Other characteristics of the present invention and details can obtain from each item dependent claims, specification and accompanying drawing.Certainly, characteristic that the reference switch device is illustrated and details also are applicable to fault current protection device and have fault current protection device and be arranged in the system of circuit-breaker on its next door that vice versa.
According to first main points of the present invention, above-mentioned purpose is through a kind of switching device realization that is used for circuit-breaker is carried out the fault current protection device of make-break operation, and said switching device is arranged on the support plate, has
-one handle that adopts rotary way to install,
-one bracket with the coupling of said handle, wherein, first end of said bracket is arranged on the said handle with the mode of the rotating shaft that departs from said handle,
-being hinged on the bolt handle on second end of said bracket, said bolt handle has each groove, and said groove is used for adopting the pin of the switch lever that rotary way installs to guide to said switching device,
-one semiaxis that adopts rotatable mounting means and have the bolt handle edge, wherein, said bolt handle edge is used to block an end of said bolt handle,
-one first flexible member that links to each other with said bolt handle and/or said switch lever, said flexible member can produce elastic stretching when said bolt handle and/or said switch lever move.
Within the scope of the present invention, fault current protection device is again a differential current protection equipment simultaneously.
This switching device is stored energy in a simple manner, so that utilize these energy to drive the switch lever of the circuit-breaker that links to each other through coupling device.In addition, this switching device is simple in structure, compact.Switching device just can be realized the storage of elastic energy through this simple mode of the motion of the handle of switching device; And recognizing fault current and confirming to make the electricity consumption trigger element or electromagnetic trip element when triggering; Utilize these elastic energies to start the switching device that installs circuit-breaker additional, and circuit is broken off through the coupling device that can be fixed on the switch lever.For this reason, said coupling device is arranged in the coupling position zone of circuit-breaker, wherein, and the anglec of rotation of switch lever and torque and circuit-breaker coupling.Switching device self does not have must be by the contact point of big active force or big torque ability closed and disconnected.Only need less relatively torque just can realize through coupling device to the manipulation that circuit-breaker carried out.
The structure of switching device is very compact, and specific maximum only has the width of a horizontal pitch.Within the scope of the present invention, the width of a horizontal pitch is 18mm.This width also conforms to the preferable width of the fault current protection device that includes said switching device.Said switching device specialized application does not have own contact system but is coming in the fault current protection device or differential current protection equipment of circuits for triggering circuit breaker through coupling device.
Switching device is arranged on the support plate.Said support plate can constitute the part (particularly side member) of the shell of the fault current protection device that wherein is equipped with said switching device.Said support plate plays base element, is used for fixing the single component of switching device.
Switching device has the handle that adopts rotary way to install.But said handle manual operation, therefore, the deflection through handle can be switched on or switched off switching device.Handle and bracket coupling, said bracket is used to make the switch lever of switching device to rotate.First end of bracket is arranged on the handle with the mode that departs from the handle rotating shaft.Thereby when handle deflection, bracket can move.Be hinged with a bolt handle on the bracket (specific is second end of bracket)." hinged " is meant that said bolt handle is installed on the bracket with rotary way.So just can be provided with one with the rotatable rotating shaft that links to each other of bracket (being second end of bracket with regard to specific) and bolt handle.When handle and bracket moved, said bolt handle also can move.In addition, said bolt handle has a groove, and this groove is used for adopting the pin of the switch lever of rotatable mounting means to guide to said switching device.Said groove preferred arrangements is at 1/3rd places, top of bolt handle.The pin of the switch lever of switching device is arranged on the switch lever with the mode that departs from the switch lever rotating shaft, thereby when bolt handle moved, groove can make switch lever rotate to the guiding of pin.The groove of bolt handle is the effect that pin plays the guiding of sliding.When bracket or handle caused bolt handle deflection, said ledge helped bolt handle to realize yaw motion.Relative circuit-breaker, switch lever is an interface.Through switch lever and be fixed on the rotation of the coupling device on the switch lever, can be directly the switching device that also is fixed on the said coupling device of circuit-breaker be carried out make-break operation.Install circuit-breaker relatively additional, the switch lever of switching device is an interface.Directly carry out make-break operation here to being in effective switch lever that is connected with coupling device; Rather than any switch shaft on other optional positions in the fault current protection device carried out make-break operation, these switch shafts will be controlled circuit-breaker through other brackets and other rod members.This principle can be saved part, installing space and material cost.
Said switching device also has the semiaxis that adopts rotary way to install, and this semiaxis has the bolt handle edge.Said bolt handle edge is used to block an end of bolt handle.The bolt handle edge preferably is arranged on the end of semiaxis.The arrangement of bolt handle edge on the support plate of switching device of semiaxis or semiaxis makes the bolt handle edge can block bolt handle that end away from groove, causes bolt handle reversing around the bolt handle edge whereby.
Said switching device preferably also has first flexible member that links to each other with bolt handle and/or switch lever, and elastic stretching can take place when bolt handle and/or switch lever move said first flexible member.During actuating switching device, promptly when handle when open position moves to on-position, first flexible member is stretched, and is loaded elasticity in other words.The motion of handle from the open position to the on-position drives bracket, and then bolt handle is driven.The motion of bolt handle further makes the switch lever of switching device rotate.If first flexible member is fixed on bolt handle or the switch lever, first flexible member just can stretch towards handle orientations when bolt handle or switch lever motion.
The present invention utilizes bolt handle when switching on and off, to rotate this on-off principle around the bolt handle edge.If handle turns to opposite side from a side when switching device is connected, handle will drive bolt handle through bracket.Because the bolt handle edge of semiaxis is hooked in the lower end of bolt handle, bolt handle can drive through the pin of the groove on it with switch lever equally.Switch lever rotates, and then the circuit-breaker coupling device that can be fixed on the switch lever is rotated, and the connection of circuit-breaker is no longer hindered.In this process, handle is crossed the dead point and is arrived its on-position, and rests on equally on this position, because after crossing said dead point, the pulling force in the bracket advantageously applies opposite torque on handle.
When breaking down electric current, switching device is released.That is to say that semiaxis rotates around its rotating shaft under the effect of magnetictrip, in this process, the bolt handle edge will in the connection process, hook semiaxis the bolt handle edge bolt handle and be released.Bolt handle after being released again can't support when connecting and apply torque above that, thereby can't stop switch lever to transfer back to its open position by first flexible member (being preferably torsionspring).But can trigger the respective switch device of the circuit-breaker that is in on-state this moment through said fixed coupling device.Usually the handle that is fixed in its position by the pulling force in the bracket under the on-state then can move to its open position this moment under the driving of more weak handle spring.
Said switching device preferably has a coupling device, and said coupling device can be fixed on the switch lever, is used for the switching device of circuit-breaker is carried out make-break operation.Said coupling device one end is fixed on the switch lever of said switching device, and the other end is fixed on the switching device (particularly switch lever) of circuit-breaker.The motion of switch lever that so just can be through above-mentioned switching device is carried out make-break operation to the switching device of circuit-breaker.These two switch levers only are connected with each other through said coupling device.
Said coupling device is mating with the circuit-breaker that installs additional in shape.Said coupling device is given prominence in the fault current protection device outside; And extend in the circuit-breaker; The coupling profile of the switching device of its profile and circuit-breaker is opposite, and in the case, said coupling device can directly embed in the switching device of circuit-breaker.
The handle of the switching device of fault current protection device and circuit-breaker is directly coupling not, because the user must just can connect circuit-breaker earlier with after the fault current protection device connection.If the user attempts before fault current protection device, connecting circuit-breaker; Or connect fault current protection device and circuit-breaker simultaneously, still the coupling device of the fault current protection device of access failure will be before the contact of circuit-breaker be closed fully the circuits for triggering circuit breaker.If fault current protection device is not in on-position, just can't connect circuit-breaker.
Handle independent of each other can bring another benefit to the user.When the situation of breaking down, power consumption equipment circuit when electrical network breaks off; The user can identify from the residing position of handle; Actually which equipment (or being the fault current protection device circuit-breaker) has caused this disconnection, and then identifies fault type, i.e. short circuit or shorted to earth.As far as the user, the trouble-shooting source is just simpler.For example, if the handle of fault current protection device is in on-position, the handle of circuit-breaker is in open position, and just short circuit or power consumption equipment network over loading have appearred in expression.If but two handles all are in open position, just represent that fault current protection device has recognized the fault current that is caused by insulation fault or human body touching live part, and make circuit-breaker break off the power consumption equipment circuit from electrical network through coupling device.
At least partly preferred formation of said support plate wherein is furnished with the crust component of the fault current protection device of said switching device.That is to say that support plate can constitute one or more side member, protecting cover element and/or the base member of fault current protection device.Thereby fault current protection device has extremely compact structure.Support plate is used for fixing the discrete component of switching device.Through switch lever, handle, semiaxis and first flexible member are fixed on the support plate, can carry out relative positioning accurately to these elements.For example, an end of first flexible member can be fixed on the support plate, and another end is fixed on bolt handle or the switch lever.Consequently, when bolt handle or switch lever moved, first flexible member was stretched, thereby bolt handle or switch lever are applied active force.Support plate preferably is made up of plastics.
Said switching device preferably also has second flexible member, and said second flexible member links to each other with the semiaxis that adopts rotary way to install.Second flexible member applies active force on semiaxis, cause semiaxis to make progress ejection by the bolt handle of locking (being hooked in other words).In the case, bolt handle hooks the bolt handle edge after the connection process finishes, and supports first flexible member and be applied to the torque on the bolt handle.Hook in the bolt handle lower end under the situation at bolt handle edge, the switch lever of switching device can be driven on the open position by the active force that first flexible member applies.The bolt handle edge guarantees that the elastic energy that is applied is in the state of being stored at first.When semiaxis separated with the bolt handle lower end, bolt handle was released, and in the case, bolt handle again can't support and apply torque above that when connecting.After bolt handle was released, bolt handle and switch lever transferred back to its open position under the effect of first flexible member (being preferably torsionspring).Trigger the switching device of the circuit-breaker that is in on-state subsequently through coupling device.
For discharging bolt handle from the bolt handle edge, semiaxis must overcome the active force that second flexible member applies and rotate.This point realizes through electric release or magnetictrip.When breaking down electric current, this electric release or magnetictrip are used for voltage signal is converted into mechanical movement.Wherein, the push rod of electric release or magnetictrip is moved by this way, the torque that makes semiaxis overcome to apply above that rotates, thereby the lower end of bolt handle is discharged.In this process, push rod preferably bumps with the end of semiaxis.Said switching device preferably has at least one and is used for electric release or magnetictrip that semiaxis is handled, and said electric release or magnetictrip have the push rod that adopts movable manner to install.That is to say that said electric release or magnetictrip are arranged on the support plate of switching device.A plurality of electric release or the magnetictrips that can touch semiaxis by different way can be set.
In addition, said switching device also preferably has the caliper lever with the semiaxis coupling, the semiaxis arranged concentric of said caliper lever and switching device.The effect of caliper lever is to make semiaxis under the effect of different electric release or magnetictrip, overcome the active force that second flexible member applies above that to rotate, thereby the lower end of bolt handle is discharged.Be that semiaxis both can drive through the push rod of caliper lever by new-type compact magnetictrip again directly by the push rod driving of conventional magnetictrip indirectly with realizing compatible method between the tripping system that adopts different arrangements.The latter preferably directly is arranged in the handle or the bracket below of switching device.In the case, new-type compact magnetictrip is easy to touched, and need not switching device (being handle, bracket or bolt handle) is dismantled.
" with the semiaxis arranged concentric of switching device " is meant that the rotating shaft of semiaxis and the rotating shaft coaxle of caliper lever extend.Caliper lever is designed with multi-functional.That is to say that on the one hand, when triggering the magnetictrip that is positioned at the handle below, promptly when the push rod of magnetictrip was pushed caliper lever downwards, it rotated semiaxis, bolt handle is discharged, thus the trigger switch device.On the other hand; Switch lever promotes the upper arm of caliper lever towards the open position direction of switch lever in the end back of threading off; The push rod that makes magnetictrip can not automatically return to its position of rest is whereby pushed back to position of rest by the underarm of caliper lever; But in this process, the rotation of semiaxis (purpose of this rotation is to realize reverse locking) is not hindered.
The bracket of said switching device can adopt different designs.Bracket constitutes the handle of switching device and the connector between the bolt handle.That is to say that under the effect of bracket, can drive bolt handle during handle motion, vice versa.Wherein, bracket preferably is employed in the design that the handle below takies the least possible space.Therefore, preferred especially switching device is the local at least L-shaped switching device of its bracket.That is to say that bracket is installed in terminal preferred L-shaped on the handle of switching device or has a L shaped extension.Whereby can with the limit pin in the L shaped zone of bracket at least part of horizontal arrange.Adopt above-mentioned particular design and have under the situation of respective length at bracket, can switch lever, bolt handle and the semiaxis of switching device be arranged in the handle next door of switching device, and need not it is arranged in the handle below.The space of switching device below can be used to fixedly compact magnetictrip.That is to say, under the situation that is provided with above-mentioned bracket with special shape, can when switching device be in on-position, remove and change, and need not to open the switching device of assembled the magnetictrip that breaks down below the handle.Bracket utilizes the space above the magnetictrip to carry out its function as connector in make and break process and under the off-state.
In addition, the coupling device of said switching device preferably has driving member.Said driving member adopts following design: when the switch lever of said switching device moves to open position; Said driving member moves the respective switch bar of the circuit-breaker that is arranged in the switching device next door and the switch lever of switching device simultaneously; The switching device of circuits for triggering circuit breaker breaks off the contact of circuit-breaker whereby.
For realizing turning the compatibility of the switch lever that triggers with said switching device and circuit-breaker; Said switching device (promptly being used for the driving member of circuit-breaker, definitely is at the switch lever of said switching device with it between the driving member of arranged concentric) in its coupling device has freewheel.In the case, fault current protection device (being FI module or DI module) just can come the circuits for triggering circuit breaker through the rotation of switch lever and driving member.Meanwhile, the triggering of coupling device (being driving member) rotatablely moves and the obstruction of the DIN rail bar mounting equipment (for example circuit-breaker, device for under-voltage releasing equipment or shunt release) that can not be installed additional, because driving member can freely rotate towards respective direction.More weak free torque spring (Freilauf Drehfeder) is used to make driving member after idle running, to transfer back to its position of rest.
Said switching device preferably has feeler switch, and said feeler switch has specific and testing elastic element Yan Weiyi test leaf spring.The preferred end of the testing elastic element of feeler switch is by at least one cylindrical elements (specific is two pegs) guiding, and these two pegs are pressed on the testing elastic element on the binding post of switching device.Preferentially be arranged in switching device inside for saving the space feeler switch.Wherein, feeler switch is specific is arranged between the handle and switch lever of the switching device on the support plate.
Feeler switch as far as be reposition element be again that the testing elastic element (specific for leaf spring) of contact element is exerted pressure.When feeler switch was exerted pressure, the tip of testing elastic element touched the movable side pin of first flexible member (specific is torsionspring) of switch lever, thereby test circuit is connected, and its prerequisite is that switch lever is in on-position.When switch lever was in open position, said leaf spring can not given birth to the movable side human hair combing waste of first flexible member of switch lever and contacted.Can't, connect by switching device test circuit when breaking off.After connecting, can break off immediately in circuit, because measuring current meeting trigger switch device is sent switch lever and movable side pin into open position.The preferred end of testing elastic element is by two cylindrical elements (specific is two pegs) guiding, and these two pegs are pressed on the testing elastic element on the binding post of switching device.For this reason, testing elastic element or test leaf spring are preferably being guided by two pegs near its right end place.These two pegs are pressed on the end of testing elastic element or test leaf spring on the binding post that wherein is furnished with the said switching device failture current protection device of (comprising feeler switch) (being the FI module).First flexible member of the switch lever of said switching device preferably has the snapclose sheet that is used for fixing contact element, and said contact element is arranged on the test resistance that is positioned on the switching device.That is to say; First flexible member (specific is torsionspring) through with switch lever is bearing on the little snapclose sheet; Can make measuring current continue to keep on-state; Switching device comprises support plate and closed cover, snaps in through contact pin and accomplishes installation in the snapclose sheet test resistance, but the resistance of snapclose sheet acceptance test subsequently.Its advantage is that the scheme diversity of switching device can not enlarged by unlimited because there being a large amount of dissimilar test resistance.Snapping in is individual simply and cheaply installation process, need not as pressing pleat, crimping or welding, to use auxiliary tools.
According to second main points of the present invention, above-mentioned purpose is through a kind of fault current protection device realization that is used for circuit-breaker is carried out make-break operation, and wherein, said fault current protection device has the illustrated switching device of preceding text.
Fault current protection device structure with this switching device is very compact, and specific maximum only has the width of a horizontal pitch.Said switching device specialized application does not have own contact system but is coming in the fault current protection device of circuits for triggering circuit breaker through coupling device.At least one side member of the shell of fault current protection device, protecting cover element or base member can be used as the support plate of switching device.Thereby the size that can dwindle fault current protection device.
Through this multifunction switch device is arranged in the fault current protection device, can two horizontal pitchs or the width of a horizontal pitch this fault current protection device is embodied as FI module or DI module.Comprise that the switching device of feeler switch and assembly thereof and trip unit (being magnetictrip) only takies the space of a horizontal pitch in fault current protection device the first half, and circuit-breaker is controlled through the rotation of coupling device.In addition, can on this fault current protection device, use the magnetictrip that adopts different arrangements through said switching device.
Said fault current protection device preferably has at least one magnetictrip, total current instrument transformer, electric wire and the binding post that is used to be connected electric wire, and said magnetictrip has the push rod that adopts movable manner to install.Through using this special switch device, can realize also being merely at interior requisite space the fault current protection device of a horizontal pitch together with magnetictrip, total current instrument transformer, electric wire and binding post.Through using this special switch device, can farthest reduce the number of parts of fault current protection device.Thereby the manufacturing that makes said fault current protection device possesses great cost advantage.Product category obtains expanding owing to installing the fault current protection device (being FI module or DI module) that width is merely a horizontal pitch additional, and this point can further be brought the significant client's advantage and the market advantage again.
According to last main points of the present invention; Above-mentioned purpose realizes through a kind of system with fault current protection device and the circuit-breaker that is arranged in said fault current protection device next door; Wherein, Fault current protection device adopts design mentioned above, is provided with coupling device between fault current protection device and the circuit-breaker, can the switch lever of the switching device of fault current protection device and the switch lever of circuit-breaker be coupled through said coupling device.Fault current protection device and circuit-breaker are preferably designed for the equipment with the assembling of DIN rail bar.For example, the two can be arranged side by side on the U-shaped mounting guide rail.Fault-current protection is established and can be passed through the switching device of coupling device start-up circuit circuit breaker, thereby when recognizing fault current, circuit is broken off.Coupling device can be connected with each other the switch lever of the switching device of the switch lever of the switching device of fault current protection device and circuit-breaker, so that circuit-breaker is carried out make-break operation.Can carry out make-break operation to the switch lever of the switching device of circuit-breaker through this system, thereby with less torque circuits for triggering circuit breaker.
When breaking down electric current, the switching device of fault current protection device is released.That is to say that semiaxis rotates around its rotating shaft under the effect of magnetictrip, in this process, the bolt handle edge will hook the bolt handle edge of semiaxis in the connection process bolt handle discharges.Bolt handle after being released again can't support when connecting and apply torque above that, thereby can't stop switch shaft to transfer back to its open position by first flexible member (being preferably torsionspring).When connecting fault current protection device, the rotation of switch lever and the deflection of bolt handle cause first flexible member to be stretched.When the handle of switching device is in on-position; On switch lever and bolt handle, apply active force through first flexible member; And then on the handle of switching device, applying active force through bracket, handle is crossed a dead point when connecting, just stably be fixed on the on-position subsequently.On the bolt handle edge that bolt handle is fixed on semiaxis, can keep this active force.The energy that is applied in the time of can stretching to first flexible member is whereby stored.Have only when bolt handle is released, the energy of being stored (i.e. the elastic force of first flexible member) just can make bolt handle and switch lever rotate, thereby through coupling device the circuit in the circuit-breaker is broken off.That is to say that the coupling device on the switch lever of the switching device through can being fixed on fault current protection device can trigger the respective switch device of the circuit-breaker that is in on-state.The handle of the switching device of fault current protection device is fixed in its position by the pulling force in the bracket under on-state usually, and then can move to its open position this moment under the driving of more weak handle spring.
Description of drawings
The present invention will be described in more detail by non-exclusive embodiment and with reference to accompanying drawing below, wherein:
Switching device when Fig. 1 is in on-position for differential current protection equipment;
Switching device when Fig. 2 is in open position for differential current protection equipment;
Switching device when Fig. 3 is in on-position for fault current protection device, said switching device has caliper lever;
Fig. 4 for differential current protection equipment be in on-position switching device, said switching device has conventional magnetictrip;
Fig. 5 for fault current protection device be in on-position the time switching device, said switching device has the compact magnetictrip;
Fig. 6 is in the perspective view of the switching device of on-position for differential current protection equipment;
Fig. 7 is in the perspective view of the switching device of on-position for fault current protection device, and said switching device has compact magnetictrip and caliper lever; And
Fig. 8 is the perspective view of feeler switch, testing elastic element, first flexible member and test resistance.
Embodiment
What Fig. 1 showed is the switching device 1 of differential current protection equipment 30 (being the DI module) when being in on-position.Switching device 1 is arranged on the support plate 2.Bolt handle 7 links to each other with the handle 3 of switching device 1 through the bracket 4 that is hinged on rotationally on the said bolt handle.First terminal 5 of bracket 4 is coupled with handle 3 rotationally, and second terminal 6 of bracket 4 is coupled with the bolt handle that links to each other rotationally.Bolt handle 7 mask in the top has a groove 8, and the pin 10 of the switch lever 9 of switching device 1 can place this groove.The pin 10 of switch lever 9 is arranged on the switch lever 9 with the rotating shaft of switch lever 9 with keeping at a certain distance away.Rotation through bolt handle 7 is guided the pin 10 of the groove 8 that is arranged in bolt handle 7, thereby switch lever 9 is rotated.When switching device 1 was in on-position, the lower end 13 of bolt handle 7 was stuck on the bolt handle edge 12 of the semiaxis 11 that adopts the rotary way installation.That is to say, when switching device 1 when open position is transformed into on-position, the bolt handle edge 12 of semiaxis 11 is hooked in the lower end 13 of bolt handle 7.In other words, when turning handle 3 came actuating switching device 1, handle can drive bolt handle 7 through bracket 4.Because the bolt handle edge 12 of semiaxis 11 is hooked in the lower end 13 of bolt handle 7, bolt handle 7 can drive through the pin 10 of the groove 8 on it with switch lever 9 equally.Switch lever 9 rotates, and then the circuit-breaker coupling device that can be fixed on the switch lever 9 is rotated, and the connection of circuit-breaker is no longer hindered.In this process, handle 3 is crossed the dead point and is arrived its on-position, and rests on equally on this position, in a single day because cross this dead point, the pulling force that just helps in the bracket 4 applies opposite torque on handle 3.
When breaking down electric current, switching device 1 is released.That is to say that the semiaxis 11 of magnetictrip (Fig. 1 does not show) rotates around the rotating shaft of magnetictrip, the bolt handle 7 at bolt handle edge 12 will be released because of the bolt handle edge 12 that in the connection process, hooks semiaxis 11.Bolt handle 7 after being released again can't support when connecting and apply torque above that, thereby can't stop switch lever 9 to transfer back to its open position by first flexible member 14 (being preferably torsionspring).But can trigger the respective switch device of the circuit-breaker that is in on-state this moment through the fixed coupling device.Usually the handle 3 that is fixed in its position by the pulling force in the bracket 4 under the on-state then can move under the driving of more weak handle spring and move to its open position at this moment.The open position of the switching device 1 of differential current protection equipment 30 is as shown in Figure 2.
Switching device 1 has first flexible member 14 that links to each other with switch lever 9, and elastic stretching can take place when switch lever 9 moves for it.During actuating switching device 1 (promptly when handle 3 move to on-position from open position), first flexible member 14 is stretched, and is loaded elasticity in other words.Handle 3 drives bracket 4 and bolt handle 7 when open position moves to on-position.The motion of bolt handle makes the switch lever 9 of switching device 1 rotate again.
This switching device 1 just can be realized the energy storage through first flexible member, the 4 this simple modes that stretch, so that utilize these energy to drive the switch lever of the circuit-breaker that links to each other through coupling device.In addition, this switching device 1 is simple in structure, compact.Particularly be exactly; Switching device 1 just can be realized the storage of elastic energy through this simple mode of the motion of the handle 3 of switching device 1; And recognizing fault current and confirming to make the electricity consumption trigger element or electromagnetic trip element when triggering; Utilize these elastic energies to start the switching device that is attached on the circuit-breaker, and circuit is broken off through the coupling device that is fixed on the switch lever 9.The anglec of rotation of the switch lever 9 of switching device 1 and torque and circuit-breaker coupling.The structure of this switching device 1 is very compact, and is specific so that measure the only width of a horizontal pitch.
Fig. 3 shows is the switching device 1 of fault current protection device 30 when being in on-position, and wherein, said switching device has caliper lever 17.Switching device 1 is used for fault current protection device, i.e. the FI module.Caliper lever 17 and semiaxis 11 arranged concentric, wherein, caliper lever 17 is coupled to each other with semiaxis 11.Under the effect of caliper lever 17, semiaxis 11 can be handled by different magnetictrips.A kind of conventional magnetictrip 16a is as shown in Figure 4.This conventional magnetictrip 16a ejection semiaxis 11 that makes progress is seen its depression angle from Fig. 4 and is moved in the direction of the clock.In the case, bolt handle edge 12 discharges the lower end 13 of bolt handle, makes bolt handle again can't support the torque that applies above that.When using compact magnetictrip 16b as shown in Figure 5, situation is like this equally.Just the push rod of compact magnetictrip 16b is pushed semiaxis downwards, its depression angle from Fig. 5 is seen equally moved in the direction of the clock.Compact magnetictrip 16b directly is arranged in handle 3 belows of switching device 1.Under the situation that adopts compact magnetictrip 16b, need to use caliper lever 17.Caliper lever 17 is a kind of multi-functional pincerlike bars.That is to say that on the one hand, when triggering magnetictrip 16b, when promptly the push rod that covers of the quilt of magnetictrip 16b was pushed caliper lever 17 downwards, it can make semiaxis 11 rotate, thus trigger switch device 1.On the other hand; Switch lever 9 promotes the upper arm 17a of magnetictrip 16b left after triggering end; Be about to it and push away the handle 3 of switching device 1; The push rod that makes compact magnetictrip 16b can not automatically return to its position of rest is whereby pushed back to position of rest by the underarm 17b of caliper lever 17, but in this process, (clockwise direction) of semiaxis 11 rotates (purpose of this rotation is to realize reverse locking) and do not hindered.
Realize between different tripping system 16a, the 16b that compatible method is that semiaxis 11 both can be driven from the lower left by the push rod of conventional release 16a, can drive from the upper right side through the push rod of caliper lever 17 by compact release 16b again.
Fig. 6 shows is the perspective view of the switching device 1 of differential current protection equipment when being in on-position.Semiaxis 11 can not rotate under accompanying drawing is done the effect of illustrated conventional magnetictrip 16a, thereby the lower end 13 of bolt handle 7 is discharged.Fig. 7 is the perspective view of the switching device 1 of fault current protection device 30 when being in on-position, and wherein, switching device 1 has compact magnetictrip 16b and caliper lever 17.Semiaxis 11 rotates under the effect of the push rod of compact magnetictrip 16b, and compact magnetictrip 16b directly places the below of handle 3 and bracket 4.When switching device 1 is in on-position; Bracket 4 extends horizontally to compact magnetictrip 16b top; Compact magnetictrip 16b can remove from switching device 1 or fault current protection device 30 simply by this way, and need not to remove other assemblies of switching device 1.
Fig. 8 is the perspective view of feeler switch 18, testing elastic element 19, first flexible member 14 and the test resistance 23 of switching device 1.Testing elastic element 19 is designed to test leaf spring at this.One end of the testing elastic element 19 of feeler switch 18 is by two cylindrical elements 20 (is the peg form at this) guiding, and these two pegs are pressed on testing elastic element 19 on the binding post of switching device 1.Preferentially be arranged in switching device 1 inside for saving space feeler switch 18.In this case, feeler switch 18 preferentially places between the handle 3 and switch lever 9 of the switching device on the support plate 21.
18 pairs of feeler switchs be reposition element be again that the testing elastic element 19 of contact element is exerted pressure.When feeler switch 19 was exerted pressure, the tip of testing elastic element 19 touched the movable side pin 14a of first flexible member 14 (being designed to torsionspring here) of switch lever 9, thereby test circuit is connected, and its prerequisite is that switch lever is in its on-position.When switch lever 9 was in open position, test leaf spring 19 can not come in contact with the movable side pin 14a of first flexible member 14 of switch lever 9.Can't, connect by switching device 1 test circuit when breaking off.After connecting, can break off again immediately in circuit, because measuring current meeting trigger switch device 1 and driving switch bar 9, thereby movable side pin 14a is sent into open position.
First flexible member 14 of the switch lever 9 of switching device 1 has the snapclose sheet 21 that is used for fixing contact element 22, and contact element 22 is a contact pin at this, is arranged on the test resistance 23 that is positioned on the switching device 1.That is to say; First flexible member 14 through with switch lever 9 is bearing on the lesser calorie locking plate 21; Can make measuring current continue to keep on-state; Switching device 1 comprises support plate 2 and closed cover, snaps in the snapclose sheet 21 through contact pin 22 and accomplishes installation test resistance 23, but snapclose sheet 21 acceptance test resistance 23 subsequently.Its advantage is that the scheme diversity of switching device can not enlarged by unlimited because there being a large amount of dissimilar test resistance 23.Especially snapping in is individual simply and cheaply installation process, need not as pressing pleat, crimping or welding, to use auxiliary tools.
The reference symbol table
1 switching device
2 support plates
3 handles
4 brackets
First end of 5 brackets
Second end of 6 brackets
7 bolt handles
Groove in 8 bolt handles
9 switch levers
10 pins
11 semiaxis
12 bolt handle edges
The end of 13 bolt handles
14 first flexible members
The movable side pin of 14a first flexible member
15 second flexible members
The conventional magnetictrip of 16a
16b compact magnetictrip
17 caliper levers
The upper arm of 17a caliper lever
The underarm of 17b caliper lever
18 feeler switchs
19 testing elastic elements
20 cylindrical elements
21 snapclose sheets
22 contact elements
23 test resistance
30 fault current protection devices
Claims (14)
1. a switching device (1) that is used for fault current protection device (30) is used for a kind of circuit-breaker of switch, and said switching device places on the support plate (2), has
A handle (3) of installing with rotary way,
Bracket (4) with said handle (3) coupling, wherein, first end (5) of said bracket (4) is arranged on the said handle (3) with the mode of the rotating shaft that departs from said handle (3),
Bolt handle (7) on second end (6) that is hinged on said bracket (4), said bolt handle has a groove (8), and said groove is used for adopting the pin (10) of the switch lever (9) that rotary way installs to guide to said switching device (1),
A semiaxis (11) that adopts rotary way to install and have bolt handle edge (12), wherein, said bolt handle edge (12) is used to block an end (13) of said bolt handle (7),
First flexible member (14) that links to each other with said bolt handle (7) and/or said switch lever (9), said flexible member can produce elastic stretching at said bolt handle (7) and/or said switch lever (9) when moving.
2. switching device according to claim 1 is characterized in that,
Said switching device (1) has a coupling device that can be fixed on the said switch lever (9), and said coupling device is used for the switching device (1) of the said circuit-breaker of switch.
3. switching device according to claim 1 and 2 is characterized in that,
Said support plate (2) at least partly constitutes the crust component of said fault current protection device (30).
4. switching device according to claim 1 and 2 is characterized in that,
Said switching device (1) has one second flexible member (15), and said second flexible member links to each other with the semiaxis (11) that said employing rotary way is installed.
5. switching device according to claim 1 and 2 is characterized in that,
Said switching device (1) has at least one magnetictrip that is used for said semiaxis (11) is handled, and (16a, 16b), said magnetictrip has a push rod that adopts movable manner to install.
6. switching device according to claim 1 and 2 is characterized in that,
Said switching device (1) has a caliper lever (17) that is coupled with said semiaxis (11), semiaxis (11) arranged concentric of said caliper lever and said switching device (1).
7. switching device according to claim 1 and 2 is characterized in that,
Said bracket (4) is local at least L-shaped.
8. switching device according to claim 2 is characterized in that,
Said coupling device has a bolt handle.
9. switching device according to claim 1 and 2 is characterized in that,
Said switching device (1) has a feeler switch (18), and it is a testing elastic element (19) of a tested steel flat spring that said feeler switch has specific.
10. switching device according to claim 9 is characterized in that,
One end of said testing elastic element (19) is by at least one element (20) guiding, and said element is specific to be a cylindrical peg, is used for said testing elastic element (19) is pressed on the binding post of said switching device (1).
11. switching device according to claim 1 and 2 is characterized in that,
Said first flexible member (14) has a snapclose sheet (21) that is used to admit contact element (22), and said contact element combines with a test resistance (23), is positioned at together on the said switching device (1).
12. a fault current protection device that is used for the switching circuit circuit breaker is characterized in that,
Said fault current protection device (30) has according to the described switching device of each claim (1) in the claim 1 to 11.
13. fault current protection device according to claim 12 is characterized in that,
Said fault current protection device (30) has at least one magnetictrip, and (16a, 16b), total current instrument transformer, complex root electric wire and a plurality of binding posts that are used to be connected electric wire, said magnetictrip has the push rod that adopts movable manner to install.
14. the system with fault current protection device circuit-breaker other with placing this fault current protection device is characterized in that,
Said fault current protection device (30) is according to claim 12 or 13 described fault current protection devices; A coupling device is just arranged between said like this fault current protection device (30) and the said circuit-breaker, through said coupling device at least can be where necessary with the switch lever (9) of the switching device (1) of said fault current protection device (30) and the switch lever coupling of said circuit-breaker.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007046356.3 | 2007-09-27 | ||
| DE102007046356A DE102007046356B4 (en) | 2007-09-27 | 2007-09-27 | Switching mechanism of a residual current device, residual current device and system with a residual current device and a circuit breaker |
| PCT/EP2008/061358 WO2009043651A1 (en) | 2007-09-27 | 2008-08-29 | Switching mechanism of a fault current protection device, fault current protection device and system with a fault current protection device and a circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101568984A CN101568984A (en) | 2009-10-28 |
| CN101568984B true CN101568984B (en) | 2012-03-28 |
Family
ID=39952302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008800013409A Active CN101568984B (en) | 2007-09-27 | 2008-08-29 | Fault current protection device, switching mechanism and system |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP2070100B1 (en) |
| CN (1) | CN101568984B (en) |
| AT (1) | ATE483247T1 (en) |
| BR (1) | BRPI0806103A2 (en) |
| DE (2) | DE102007046356B4 (en) |
| RU (1) | RU2474001C2 (en) |
| WO (1) | WO2009043651A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010062792B4 (en) * | 2010-12-10 | 2019-08-08 | Siemens Aktiengesellschaft | Tripping device of a residual current circuit breaker |
| DE102011082124B4 (en) * | 2011-09-05 | 2019-01-31 | Siemens Aktiengesellschaft | Protective switching device with optical fiber and LED |
| ITMI20120884A1 (en) * | 2012-05-22 | 2013-11-23 | Gewiss Spa | DIFFERENTIAL SWITCH WITH AUTOTEST DEVICE |
| ITMI20131033A1 (en) * | 2013-06-21 | 2014-12-22 | Gewiss Spa | DIFFERENTIAL SWITCH |
| CN112863864B (en) * | 2020-12-31 | 2022-05-03 | 宁波海融电器有限公司 | Cylinder is full does compensating capacitor |
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| US4399420A (en) * | 1981-09-11 | 1983-08-16 | Square D Company | Main circuit breaker |
| US4740770A (en) * | 1985-10-31 | 1988-04-26 | Merlin Gerin | Operating mechanism for a low voltage electrical circuit breaker |
| GB2295275A (en) * | 1994-11-15 | 1996-05-22 | Matsushita Electric Works Ltd | Circuit breaker |
| CN2407450Y (en) * | 2000-01-29 | 2000-11-22 | 浙江德力西电器股份有限公司 | Actuating mechanism of small size circuit breaker |
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| CN1452204A (en) * | 2002-04-16 | 2003-10-29 | 正泰集团公司 | Mechanism for operating small circuit breaker |
| CN1558438A (en) * | 2004-02-11 | 2004-12-29 | 正泰集团公司 | Actuation device for auxiliary release of residual current actuation release breaker |
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| DE2115034B2 (en) * | 1971-03-29 | 1977-07-21 | Brown, Boveri & Cie Ag, 6800 Mannheim | CIRCUIT BREAKER WITH OVERCURRENT, SHORT CIRCUIT AND FAULT CURRENT PROTECTION |
| FR2615323B1 (en) * | 1987-05-11 | 1989-06-30 | Merlin Gerin | MODULAR CIRCUIT BREAKER WITH AUXILIARY TRIGGER BLOCK ASSOCIATED WITH A MULTIPOLAR CIRCUIT BREAKER |
| DE4116454A1 (en) * | 1991-05-18 | 1992-11-19 | Licentia Gmbh | MECHANISM FOR A SELF-SWITCH |
| US6166344A (en) * | 1999-03-23 | 2000-12-26 | General Electric Company | Circuit breaker handle block |
| FR2859816B1 (en) * | 2003-09-11 | 2006-04-07 | Legrand Sa | ELECTRIC CURRENT CUTTING DEVICE WITH COMPLETE DISCRIMINATION OF STATES |
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2007
- 2007-09-27 DE DE102007046356A patent/DE102007046356B4/en not_active Expired - Fee Related
-
2008
- 2008-08-29 WO PCT/EP2008/061358 patent/WO2009043651A1/en active Application Filing
- 2008-08-29 AT AT08803357T patent/ATE483247T1/en active
- 2008-08-29 DE DE502008001433T patent/DE502008001433D1/en active Active
- 2008-08-29 CN CN2008800013409A patent/CN101568984B/en active Active
- 2008-08-29 RU RU2009122482/07A patent/RU2474001C2/en not_active IP Right Cessation
- 2008-08-29 BR BRPI0806103-3A patent/BRPI0806103A2/en not_active IP Right Cessation
- 2008-08-29 EP EP08803357A patent/EP2070100B1/en not_active Not-in-force
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4399420A (en) * | 1981-09-11 | 1983-08-16 | Square D Company | Main circuit breaker |
| US4740770A (en) * | 1985-10-31 | 1988-04-26 | Merlin Gerin | Operating mechanism for a low voltage electrical circuit breaker |
| GB2295275A (en) * | 1994-11-15 | 1996-05-22 | Matsushita Electric Works Ltd | Circuit breaker |
| CN2407450Y (en) * | 2000-01-29 | 2000-11-22 | 浙江德力西电器股份有限公司 | Actuating mechanism of small size circuit breaker |
| CN1325123A (en) * | 2000-05-18 | 2001-12-05 | 上海奥富捷电气终端成套厂 | Multichannel breaker with modular breaking units |
| CN1452204A (en) * | 2002-04-16 | 2003-10-29 | 正泰集团公司 | Mechanism for operating small circuit breaker |
| CN1558438A (en) * | 2004-02-11 | 2004-12-29 | 正泰集团公司 | Actuation device for auxiliary release of residual current actuation release breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009043651A1 (en) | 2009-04-09 |
| RU2474001C2 (en) | 2013-01-27 |
| RU2009122482A (en) | 2010-12-20 |
| CN101568984A (en) | 2009-10-28 |
| EP2070100B1 (en) | 2010-09-29 |
| EP2070100A1 (en) | 2009-06-17 |
| ATE483247T1 (en) | 2010-10-15 |
| DE502008001433D1 (en) | 2010-11-11 |
| BRPI0806103A2 (en) | 2011-08-30 |
| DE102007046356A1 (en) | 2009-04-23 |
| DE102007046356B4 (en) | 2009-12-10 |
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