CN202352597U - Electrical installation switch equipment - Google Patents
Electrical installation switch equipment Download PDFInfo
- Publication number
- CN202352597U CN202352597U CN2011201711657U CN201120171165U CN202352597U CN 202352597 U CN202352597 U CN 202352597U CN 2011201711657 U CN2011201711657 U CN 2011201711657U CN 201120171165 U CN201120171165 U CN 201120171165U CN 202352597 U CN202352597 U CN 202352597U
- Authority
- CN
- China
- Prior art keywords
- contact
- switching mechanism
- contact lever
- lever
- release
- 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.)
- Expired - Fee Related
Links
- 238000010616 electrical installation Methods 0.000 title abstract 2
- 230000007246 mechanism Effects 0.000 claims abstract description 78
- 230000004907 flux Effects 0.000 claims abstract description 5
- 238000009434 installation Methods 0.000 claims description 38
- 230000000694 effects Effects 0.000 claims description 32
- 238000012423 maintenance Methods 0.000 claims description 6
- 230000000284 resting effect Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000003993 interaction Effects 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000013016 damping Methods 0.000 claims description 2
- 230000007704 transition Effects 0.000 claims description 2
- 230000009471 action Effects 0.000 abstract description 10
- 230000002349 favourable effect Effects 0.000 description 17
- 230000033001 locomotion Effects 0.000 description 8
- 230000008901 benefit Effects 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000003116 impacting effect Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005267 amalgamation Methods 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H77/00—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting
- H01H77/02—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism
- H01H77/10—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism with electrodynamic opening
- H01H77/107—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism with electrodynamic opening characterised by the blow-off force generating means, e.g. current loops
- H01H77/108—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism with electrodynamic opening characterised by the blow-off force generating means, e.g. current loops comprising magnetisable elements, e.g. flux concentrator, linear slot motor
-
- 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
- H01H71/24—Electromagnetic mechanisms
- H01H71/2418—Electromagnetic mechanisms combined with an electrodynamic current limiting mechanism
-
- 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
- H01H71/40—Combined electrothermal and electromagnetic mechanisms
-
- 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
- H01H71/24—Electromagnetic mechanisms
- H01H71/2454—Electromagnetic mechanisms characterised by the magnetic circuit or active magnetic elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/04—Contacts
- H01H73/045—Bridging contacts
Abstract
The utility model relates to electrical installation switch equipment which comprises a current path, a contact lever, an electromagnetic short-circuit current release and a switching mechanism; at least part of the current of the current path flows past the contact lever, and the contact lever is provided with at least one movable contact piece; the electromagnetic short-circuit current release comprises a magnetic circuit with an air gap; and the switching mechanism comprises a trip rod capable of swinging between a rest position and a releasing position. At least part of the contact lever is arranged in the air gap of the magnetic circuit, so that an electrical force action which can act on the contact lever so that at least one contact is quickly disconnected due to the mutual action between magnetic flux and current in the air gap under a short-circuit circumstance. The switching mechanism acts on the contact lever through a first action connecting wire so that the contact is disconnected and/or remains disconnected; and under a short-circuit releasing circumstance, the contact lever acts on the switching mechanism through a third action connecting wire, so that the contact remains disconnected, wherein the contact lever is connected with the switching mechanism through a reversing rod.
Description
Technical field
The electric installation switchgear
that the utility model relates to a kind of preamble according to claim 1 has: current path; It stretches between first and second joint Terminals (Anschlussklemme) in case, and it can comprise that the contact (Kontaktstelle) of fixing contact and movable contact is located to break off and closed at least one; By the electric current of the current path contact lever that flows through of part at least, it is provided with at least one movable contact; Electromagnetic type short circuit current release, it comprises the magnetic circuit that has air gap; And switching mechanism (Schaltwerk), it comprises the trip rod (Schlaghebel) that can between resting position and dropout position, swing.
Background technology
This type of installation switchgear for example can be line protection switch, failure current protection switch, motor protection switch, or main line protection switch optionally.
A kind of this type of line protection switch is for example represented in file DE 10 2,008 006 863A1.The cut-out of short circuit current is undertaken by bump armature in such line protection switch known in the prior art.The magnetic field of the magnetic coil that is flow through by electric current makes the bump armature motion at electromagnetic type short circuit current release underexcitation magnetic circuit through electronic interaction thus.Be linked with impacting pin with this bump armature; This impacting pin bump contact lever; Make the contact break off, and this impacting pin is simultaneously to the switching mechanism effect, this causes switching mechanism release (Entklinkung) and causes the contact to continue to keep breaking off thus; Again end lock (verklinken) up to switching mechanism, and follow just Reclosable of contact.
Overcurrent is threaded off in known installation switchgear by means of the mechanical trigger element of heat, is carried out for the band of being processed by the thermo bimetal mostly.Overcurrent
causes the heating of thermo bimetal's band and causes its consequent bending.Thermo bimetal's band makes the switching mechanism release through corresponding the connection by means of switching mechanism operating element
under the state of bending; Then the contact is lasting equally breaks off, up to switching mechanism only lock and then contact ability Reclosable again.
In line protection switch contact lever be embodied as mostly can be at the axle place single arm(ed) lever or the double armed lever of swinging mounting, at the fixing movable contact of an one of which free end.Two contact bridges that common use can be shifted and support as contact lever in the motor protection switch; It is loaded with movable contact respectively at its two free ends; These two movable contacts respectively with a fixing contact acting in conjunction; Make to constitute two contacts thus, and can be distributed in power switched on two contacts that it is not too strong to make each single contact when short circuit is cut off, load.
Yet the response speed of magnetic release is limited in known installation switchgear, because comprise the subsystem of a plurality of machineries, it has certain machinery inertial separately.Also limit the current limitation under the short-circuit conditions thus.
The utility model content
Therefore, the purpose of the utility model is, so improves such installation switchgear, that is, make and can realize that short circuit current cuts off faster.
Such installation switchgear of the characteristic of this purpose through having claim 1 characteristic is realized.
Therefore; According to the utility model; This electric installation switchgear has: current path, and it stretches between first and second joint Terminals in case, and it can comprise that the place, contact of fixing contact and movable contact is broken off and closed at least one; By the electric current of the current path contact lever that flows through of part at least, it is provided with at least one movable contact; Electromagnetic type short circuit current release, it comprises the magnetic circuit that has air gap; And switching mechanism, it comprises the trip rod that can between resting position and dropout position, swing.Contact lever is arranged in the air gap of magnetic circuit at least in part; Make the magnetic flux under the situation of short circuit because in air gap (magnetischen Fluss) and the interaction of electric current can produce the electronic power effect that causes at least one contact to be broken off fast that acts on the contact lever; And switching mechanism produces contact lever through the first effect connecting line (Wirkverbindungslinie) and does in order to be used to that contact disconnection and/or maintenance are broken off; And under the situation that short circuit is threaded off; Contact lever produces switching mechanism through the 3rd effect connecting line and does in order to be used to the making contact keep breaking off; Wherein, contact lever connects through reversing bar (Umlenkhebel) and switching mechanism.
Installation switchgear according to the utility model has such advantage; Promptly; Short circuit current cuts off than in the known device of routine, carries out quickly, wherein, and other functional characteristic; For example overcurrent is threaded off, holding contact breaks off, reclosing etc. after switching mechanism ends lock again continuing after the switching mechanism release, continue as custom supply use.
Like the advantage the magnetic-type short circuit current release that uses in the installation switchgear according to the utility model has, that is, can between the magnetic field of magnetic flux or magnetic circuit and contact lever, produce directly and interact.Comparablely thus in line protection switch, carry out soon the disconnection of contact in the prior art under the situation of employed bump armature system manyly; In above-mentioned bump armature system; As above-mentioned, because the machinery inertial of the movable member of being participated in restriction trip speed.When the magnetic-type short circuit current is threaded off; As employed in the installation switchgear according to the utility model; Such masterpiece is used for contact lever, that is, this power produce magnetic field act on the electric charge that in this magnetic field, moves as the known power effect of Lorentz force.This power effect is directly carried out, and does not need the middle of mechanical part (for example mobile armature or impacting pin) to switch.For guaranteeing that continuing holding contact breaks off, according to the utility model contact lever self to switching mechanism generation effect so that its keep breaking off.Therefore, bear a kind of additional function, except the function that is loaded with movable contact, also bear the function of release switching mechanism according to the utility model contact lever.Under the situation that overcurrent is threaded off, the disconnection of contact and maintenance are broken off and as known, being carried out through switching mechanism.
According to a kind of favourable execution mode of the utility model, reversing bar is that double armed lever and being bearing in swingably is fixed in the axle at case place, and wherein, first fen arm of reversing bar connects with contact lever, and second fen arm of reversing bar and trip rod connection.
According to a kind of favourable execution mode of the utility model; In the recess of second fen arm of reversing bar can vertical displaceable mode to be supported with insert (Einlegeteil) and to load on the direction of case front side, insert being carried out elasticity; Wherein, the connection of insert foundation and trip rod.
According to a kind of favourable execution mode of the utility model; Be configured with effect projection (Wirkfortsatz) towards insert at the trip rod place; And be configured with towards the notch of effect projection at the insert place, wherein, the effect projection of trip rod is bearing in the insert place on the primary importance of insert; And wherein, the effect projection of trip rod is contained in the notch with displaceable mode on the second place of insert.
According to a kind of favourable execution mode of the utility model; Contact lever is configured to movable contact bridge; It is provided with two movable contacts; Movable contact and two fixing contact actings in conjunction are to be used to form two contacts, and wherein, contact lever is being loaded on the direction of fixing contact through the reset force of contact pressure spring.Therefore double-contact is provided, it has such advantage, that is, each independent branch contact when short circuit current cuts off with under unique contact situation, to compare the load that receives not too strong.
According to a kind of favourable execution mode of the utility model, be provided with and transmit bar and it is bearing in the axle that is fixed on the case place swingably, wherein, transmit bar the reset force of contact pressure spring is delivered on the contact lever.
According to a kind of favourable execution mode of the utility model, be configured with the protuberance that has slotted hole at the contact lever place, and be configured with the connection projection that in slotted hole, guides at the reversing bar place.
According to a kind of favourable execution mode of the utility model; Switching mechanism is provided with locking rod, and the one of which end is loaded with projecting part (Ansatzteil), wherein; When causing the contact disconnection through switching mechanism or keeping breaking off, locking rod utilizes its projecting part that contact lever is loaded to be used for break contact.
According to a kind of favourable execution mode of the utility model, projecting part is loaded with plastic seating (Kunststoffauflage), to be used for when projecting part is pressed onto on the protuberance at contact lever place, improving sliding properties.
Effect according to the utility model is favourable is following: under on-state, contact force produces via contact lever through the contact pressure spring.Between switching mechanism and contact bridge, there is not mechanical connection.When hands off (Ausschaltung), contact bridge breaks off through locking rod.In order to improve sliding properties, locking rod with zone that contact bridge contacts in be provided with plastic seating.Even the special shape of plastic seating is guaranteed also to guarantee distance contact bridge and locking rod between because scaling loss is sunk under the situation of (Nacksinken) at contact bridge, and under off state, is realized required contact break distance
simultaneously
According to a kind of favourable execution mode of the utility model; Installation switchgear is provided with the overcurrent release that comprises the switching mechanism operating element; This switching mechanism operating element carries out the transition to the dropout position from resting position when overcurrent is threaded off; And under the situation of overcurrent dropout, overcurrent release produces switching mechanism through the second effect connecting line and does in order to be used for through switching mechanism contact disconnection and maintenance being broken off.
According to one of the utility model favourable execution mode; The switching mechanism operating element of overcurrent release and overcurrent magnetic circuit coupling join (koppeln), and wherein, the magnetic field of power through overcurrent that acts on the switching mechanism operating element produces; Wherein, Be attached to electromagnetic type damping element place in order to adjust dropout switching mechanism operating element time of delay, and wherein, the switching mechanism operating element connects to be used to adjust overcurrent dropout threshold value with the adjustment element.Overcurrent is threaded off and is also realized as the magnetic-type tripping system in this very favorable execution mode.This has such advantage, that is, the mode that the overcurrent dropout can be temperature independent is carried out.Therefore because bimetallic is out of shape when variation of ambient temperature equally in thermo bimetal's release known in the prior art, must connect with compensation arrangement most of the time according to this overcurrent release of prior art.The magnetic-type overcurrent release that in installation switchgear, uses according to the utility model does not show any temperature dependency.
About functional unit in the layout inner according to the case of the installation switchgear of the utility model; One preferred embodiment is provided with, and short circuit current release and overcurrent release see one after the other that on the flow direction of electric current through current path (hintereinander) is arranged in the case.This makes and utilizes the space to become possibility particularly well.
According to one of the utility model favourable execution mode, the approximate shape with T of upset of case has the front side; And be provided with joystick at this place, front side; To be used for the manual control switching mechanism, wherein, this switching mechanism is arranged in case between short circuit current release and the front side.In another favourable execution mode; Switching mechanism is arranged in the zone of vertical bridge joint beam
of the T shape of case, connects in the zone of beam and overcurrent release and short-circuit release are arranged in the cross-bridges of the T shape of case.
According to one of the utility model favourable execution mode, case has and the front side side that is relatively fixed, and it is provided with immobilising device to be used for that case is snapped to the special-shaped rail (Normprofiltragschiene) that carries of standard.Such immobilising device is the recess of approximate U-shaped at one in preferred embodiment, and it is by fixing protuberance with in the supporting that can be shifted and movable protuberance restriction that be provided with at the spring-loading slide plate of the direction place towards fixing protuberance.
Design that other of the utility model is favourable and improvement project and other advantage obtain from dependent claims.
Description of drawings
Drawing illustrated in detail and other favourable design and the improvement project of describing the utility model and the utility model according to the embodiment that the utility model is shown therein.
Wherein:
Fig. 1 has shown the sketch map according to the installation switchgear of the utility model,
Fig. 2 has shown the internal view according to the case bottom of opening of the installation switchgear of the utility model,
Fig. 3 has shown the partial view according to the amplification at the connection position of view between contact lever and switching mechanism of Fig. 2.
List of reference characters
1 electric installation switchgear
2,2 ' fixing contact
3,3 ' the movable contact
4,4 ' contact
5 contact levers
6 short circuit current releases
7 overcurrent releases
8 switching mechanisms
9 first effect connecting lines
10 second effect connecting lines
11 the 3rd effect connecting lines
12 cases
13 joint Terminals
14 joint Terminals
15 front sides
16 joysticks
17 fixation side
18 immobilising devices, fixedly protuberance
19 immobilising devices, movable protuberance
20 release levers
21 trip rods
22 switch handle
23 end locking bar (Klinkenhebel)
24 end the slotted hole in the locking bar
25 camber members
26 intermediate bars
27 locking rods
30 springs
31 slide plates
32 are fixed on the axle at case place
33 are fixed on the axle at case place
34 springs in the snap action switching mechanism
The limit leg (Schenkel) of 35 helix torsion springs (Schenkelfeder)
36 are fixed on the axle at case place
The first arm of 37 trip rods
38 contact pressure springs
39 transmit bar
40 transmit the axle that is fixed on the case place of bar
41 transmit the first limit leg of bar
The protuberance at 42 contact lever places
43 transmit the second limit leg of bar
The other end of 44 locking rods
45 projecting parts
46 plastic seatings
47 reversing bars
48
49 49 ', 49 " pieces (Leiterst ü ck)
50 limit spring (Fesselfeder)
51 control cams
First fen arm of 54 reversing bars
Second fen arm of 55 reversing bars
56 inserts
The fixed axis of 57 reversing bars
58 slotted holes
Embodiment
At first observe Fig. 1.It has shown the sketch map of the installation switchgear 1 (being line protection switch here) according to the utility model, has case 12, and this case 12 has front side 15 and fixation side 17.This case 12 has the U-shaped recess at fixation side 17 places; It is by fixing protuberance 18 with in movable protuberance 19 restrictions that can support with being shifted and be provided with at spring-loading slide plate 31 places on the direction of fixing protuberance 18 by spring 30, to be used in known manner case 1 being snapped to standard abnormal shape year rail.
At first joint Terminal 13 at the first narrow side place of case with between second joint Terminal 14 at the second relative narrow side place; Current path except that other element via pieces 49,49 ', 49 " stretch through case; current path can be at double-contact 4, and 4 ' locates to break off and closed.Have the contact lever 5 that is configured to movable contact bridge in this external this current path, it is provided with two movable contacts 3,3 ', and they and two fixing contact 2,2 ' actings in conjunction are to be used to form double-contact 4,4 '.
Contact lever 5 is combined in the magnetic-type short-circuit release 6, and this magnetic-type short-circuit release 6 comprises the magnetic circuit that has air gap.Such magnetic-type short-circuit release is for example known from file WO 2010/130414A1.At this, contact lever 5 part at least is arranged in the air gap of magnetic circuit, makes can produce the electronic power effect that acts on the contact lever 5 in the interaction owing to magnetic flux in air gap and electric current under the situation of short circuit; This power effect is being quickened contact lever 5 very fast on the direction of fixation side 17; Thereby movable contact 3,3 ' is drawn back (wegrei β en) from fixing contact 2,2 '; And therefore break off double-contact 4,4 ' very fast.Disconnection in this contact 4,4 ' can be accomplished in the time below one millisecond, and this Billy is attainable faster with conventional electromagnetism bump armature system.
Current path stretches through the overcurrent release 7 and the joint Terminal 14 that stretches therefrom after magnetic-type short circuit current release 6.Overcurrent release 7 is overcurrent releases of magnetic action, as its for example described in the file WO 2010/133346A1.
As being seen, case 12 approximate shapes with T of handstand.The current path that has magnetic-type release 6 and overcurrent release 7 extends in the bridge joint beam (Steg) that laterally stretches of T shape basically.The switching mechanism 8 that in the vertical bridge joint beam of T shape, has machinery; This switching mechanism 8 is provided with joystick 16 and this joystick 16 capable of using is handled switching mechanism 8; Wherein, joystick 16 supporting and 15 stretch out and can be in being fixed on the axle 32 at case place from the case external control from the front side.Switching mechanism 8 is implemented according to the switching mechanism of in file DE 10 2,008 006 863A1, describing, as equally Fig. 2 and especially in Fig. 3 institute conspicuous.Switching mechanism 8 comprises release lever 20 and ends locking bar 23 that they constitute only position, lock section together.End locking bar 23 and have slotted hole 24, camber member 25 guides in this slotted hole 24, and its other end and joystick (in Fig. 2, also be expressed as here and switch handle 22) connect.Switching mechanism comprises intermediate bar 26 in addition, and first end of one of which end and camber member 25 and its relative other end and locking rod 27 connects swingably.Locking rod 27 is supporting swingably in being fixed on the axle 33 at case place.The springs in the snap action switching mechanism 34 (an one of which limit leg 35 supports with the mode that is fixed on the case place) that is embodied as helix torsion spring applies power to locking rod 27, and this power will make locking rod 27 clockwise rotate around axle 33.The other end 44 of locking rod 27 is loaded with approximate rectangular molded projecting part 45, and it is loaded with plastic seating 46.
In addition; Switching mechanism comprises the trip rod 21 that is embodied as double armed lever, and it centers on axle 36 supporting swingably that is fixed on the case place, and release lever 20 is acted on when swinging clockwise with its first arm 37; And it is pushed open counterclockwise, make then and end the release of position, lock section.
Under the state of connecting, contact lever 5 upwards is being urged on the direction of front side by contact pressure spring 38 (not shown in Fig. 1, but referring to Fig. 2), makes double-contact 4, and 4 ' closure and electric current can flow.This is outside equipped with the transmission bar 39 that is embodied as double armed lever, and it is around the axle 40 that is fixed on case place supporting swingably.The first limit leg 41 that transmits bar 39 is attached to protruded arm 42 places of contact lever 5, and protruded arm 42 upwards stretches out from short circuit current release 6.The second limit leg 43 that transmits bar is loaded by contact pressure spring 38 (be cylindrical spring, it supports with the mode that is fixed on the case place with its other end) here, or rather in the counterclockwise direction.Therefore, shown in Fig. 1 to Fig. 3, contact pressure spring 38 causes under on-state through transmitting bar 39 and upwards spurs contact lever 5, and so holding contact 4,4 ' closure.
Under on-state, lock is ended in release lever 20 and the position, lock section of ending of ending between the locking bar 23, and switching handle 22 is arranged in the position of swing to the right.Swing in the counterclockwise direction with degree like this through the present locking rod 27 of bar chain (switching handle 22-camber member 25-intermediate bar 26); Promptly; Make at the plastic seating 46 at its projecting part 45 places far enough away from the protruded arm 42 of contact lever 5; So that contact lever 5 upwards spurs to be used for closing contact 4,4 ' by transmitting bar 39 under the effect of contact pressure spring 38.
When answering hands off, switching handle 22 is left that counter-clockwise swing is to off position from it at the on-position shown in Fig. 1.At this, through release lever swing to the right under the effect of switching handle 22, in switching mechanism 8 inside at release lever 20 with end and end the release of position, lock section between the locking bar 23.Such result is, the bar chain of rigidity is untied, and makes that intermediate bar 26 is free and can slide to the right.Therefore the reset force of springs in the snap action switching mechanism 34 can make locking rod so swing clockwise now, that is, the reset force that the plastic seating 46 that makes locking rod be utilized in its projecting part 45 places overcomes contact pressure spring 34 is pressed to contact bridge 5 downwards in its open position.Then end the position, lock section and end lock again, and switching mechanism is ready for connecting again.
For manual connection, 22 swings of switching handle are turned back in its on-position.At this; The oscillating motion of switching handle 22 is through changing ahead running left into ending the bar chain that becomes rigidity under the lock state again; It is to locking rod 27 effects; And the reset force that overcomes springs in the snap action switching mechanism 34 is so swung locking rod 27,, makes that the plastic seating 46 at its projecting part 45 places discharges contact bridge 5 that is.Contact bridge 5 upwards is pressed in its resting position by transmitting bar 39 under the effect of contact pressure spring 38 immediately again.Double-contact 4,4 ' is closed again.
Switching mechanism of in Fig. 1, describing just now 8 and the effect between the contact lever 5 connect through 9 expressions of the first effect connecting line.
Contact lever 5 is pulled into downwards in the short circuit current release 6 with the power greater than the elastic force that resets of contact pressure spring 38 very fast under the situation that short circuit current is threaded off.The protuberance 42 of contact lever 5 connects through reversing bar 47 (referring to Fig. 2) and trip rod 21, definitely says in the following manner, that is, when contact lever 5 is pulled into the core body (Kern) of short circuit current release 6 downwards when middle, reversing bar is swung trip rod clockwise.The clockwise swing of trip rod causes it for the power effect of release lever and the swing of release lever, and what make switching mechanism ends the release of position, lock section, and as stated, this result who causes is that contact lever 5 is remained in the position of disconnection by locking rod 27.Contact 4,4 ' passes through short circuit current release 6 breaks off very fast, and switching mechanism is unlocked and causes that contact 4,4 ' keeps breaking off constantly, up to manually reclosing.
Combine Fig. 3 to describe contact lever 5 in detail through the connection of reversing bar 47 with the trip rod 21 of switching mechanism at present.Overcurrent release 7 also is shown in Fig. 3, is configured with control cam 51 at its axle 48 places, this control cam 51 connects with trip rod 21 equally mutually.
The assembly of reversing bar 47 comprises four parts: itself reversing bar 47, insert 56, compression spring and pin.
Reversing bar 47 is as the switching mechanism of installation switchgear and the connecting piece (Bindeglied) between the contact lever 5.
Reversing bar 47 is inserted in the case bottom on the preset axle 57-below be also referred to as rotation axis.Be configured with as the pin that connects projection (Koppelfortsatz) at first fen arm 54 place of reversing bar 47, in the slotted hole 58 that for this reason is provided with in the protuberance 42 of its insertion contact bridge 5.
Reversing bar 47 is born various tasks:
A) short-circuit conditions lower-pilot trip rod 21
Reversing bar 47 at first is in the home position; And insert 56 through in the recess of compression spring in second arm 55 of reversing bar 47 forward, on the direction of front side 15, be urged, insert laterally utilizes its contact-making surface to be in the correct position with spacing to locate with the effect projection (bolt (Bolzen)) that is used to collide trip rod 21 thus.
Under short-circuit conditions, contact bridge 5 is pulled in the magnetic core of short circuit current release 6 and is urged the pin of reversing bar 47 thus.Reversing bar 47 begins to rotate, and makes trip rod 21 place rotation equally through the contact between the bolt at insert 56 and trip rod 21 places.
Contact between the bolt of insert 56 and trip rod 21 keeps, the dropout until the mechanism that switches.Slightly backward, on the direction of fixation side 17, be urged corresponding to impact curve (Anschlagkurve), this impact curve is in upper encloser housing place and when case is closed, then engages with insert 56 insert 56 in reversing bar 47 for this reason.That is to say that case here with so-called shell structure (Schalenbauweise) structure, is made up of two case half shells by this case, their edges around split line (F ü gelinie) amalgamation together.The main subassembly of installation switchgear is packed in lower encioser half one, is installing when finishing then, and upper encloser half one (case top) is put and is connected with the bottom.
If contact bridge 5 is in the open position; For example when the switching mechanism locking; Then the insert 56 of reversing bar 47 leaves the impact curve on case top again and presses forward, on the direction of front side 15, is being urged through the compression spring that reclines, and insert 56 is pushed to notch in the movement locus of bolt of trip rod and discharges this movement locus for the motion of trip rod thus.
B) allow the trip rod backswing
The trip rod 21 that rotates is pushed back in the original position by release lever 20.Through insert 56 in reversing bar 47 forward, 15 be urged towards the front side, and the notch in the insert 56 is on the movement locus of bolt of trip rod 21 now, but this trip rod backswing and can not meet obstructions in its original position.
C) return home position and rebulid reversing bar and trip rod between connection
When reclosing installation switchgear, trip rod 21 must be retained in its original position, and does not allow to block with reversing bar 47.Therefore in insert 56, also there is second notch.If installation switchgear recloses, then contact bridge 5 is upwards advanced and is incorporated in this pin through synchronous (mitgenommen) reversing bar 47 until two contacts 4,4 ' close and reversing bar 47 will be rotated return in its home position.To the path at this place, the bolt of trip rod 21 moves on the track of second notch of insert 56.The track guiding (Bahnf ü hrung) of second notch so forms; Promptly; Through the track guiding that second notch and insert 56 are followed along the impact curve on case top simultaneously, the spring pressure on acting on insert 56 is being fixed on trip rod 21 on its original position during the rotation of reversing bar 47.
If reversing bar 47 is with degree cycle like this; Promptly; Make the bolt of trip rod 21 leave the track of second notch again; Then insert 56 finishes at the mandatory guidance at the impact curve place on case top, and compression spring with insert fully forward, pushing on the direction of front side 15, and the side direction contact-making surface of insert 56 is in the correct position to be used to collide the bolt place of trip rod 21 with spacing with respect to reversing bar again thus.Rebulid the initial state of switch thus.
D) to the freedom of motion of the trip rod 21 of the dropout through overcurrent release 7
Reversing bar 47 so designs, that is, trip rod 21 can be rotated through the control curve at control cam 51 places when threading off by overcurrent release, and trip rod 21 can be owing to reversing bar 47 is affected.In this case, reversing bar 47 until the switching mechanism release remain in its home position insusceptibly and after this locking through contact bridge 5 as a), rotate.
Free end at axle 48 is configured with control cam 51.This control cam is approximate to have cylindrical shape, is cut open to this cylinder side portion segmentation.In the control cam, be configured with the control curve.Second arm 53 of trip rod 21 is bearing in control curve place.When axle 48 rotation, the control curve is responsible for trip rod 21 and is swung clockwise, thereby its first arm can act on release lever 20, makes switching mechanism 8 releases and makes contact 4,4 ' disconnection being used to.
Therefore; Rotatablely moving of axle 48 through overcurrent release 7 changed the oscillating motion of trip rod 21 into by means of control curve 52, contact 4, and 4 ' breaks off through overcurrent release 7 under the situation of overcurrent; Switching mechanism release thus; And cause that contact 4,4 ' continues to keep release, up to manually reclosing.
Above-mentioned installation switchgear can be particularly advantageous for protective circuit under the situation of the low rated voltage (for example 60V) of interchange or direct current; Because because electronic short circuit current release 6 causes cutting-off of short-circuit electric current very fast, so without any need for arc-extinction device; Because anode-cathode voltage is so big, that is, it surpasses the rated voltage of 60V, feasible interruptive current thus; The arc voltage that need not add is resisted the voltage of the existence at the terminal place to be used for cut-out.Above-mentioned installation switchgear can advantageously use under the applicable cases of the ambient temperature that has surging equally, because owing to need not carry out any temperature-compensating to this overcurrent release according to the overcurrent release of magnetic principle work.
The utility model also comprises preferred embodiment and the combination in any or the improvement project of single architectural feature, as long as their do not repel each other.
Claims (13)
1. an electric installation switchgear (1); Have: current path; It stretches between first joint Terminal (13) and second joint Terminal (14) in housing (12), and it can comprise that the contact (4) of fixing contact (2) and movable contact (3) is located to break off and closed at least one; By the electric current of the said current path contact lever (5) that flows through of part at least, it is provided with at least one movable contact (4); Electromagnetic type short circuit current release (6), it comprises the magnetic circuit that has air gap; And switching mechanism (8); It comprises the trip rod (21) that can between resting position and dropout position, swing; It is characterized in that; Said contact lever (5) is arranged in the air gap of magnetic circuit at least in part; Make and to produce the electronic power effect that causes said at least one contact (4) to be broken off fast that acts on the said contact lever (5) in the interaction owing to magnetic flux in air gap and electric current under the situation of short circuit; Said switching mechanism (8) acts on connecting line (9) through first said contact lever (5) is produced work in order to be used to that said contact (4) is broken off and/or the maintenance disconnection, and under the situation that short circuit is threaded off, said contact lever (5) acts on connecting line (11) through the 3rd said switching mechanism (8) is produced work in order to be used to that said contact (4) maintenance is broken off; Wherein, said contact lever (5) connects with said switching mechanism (8) through reversing bar (47) mutually.
2. electric installation switchgear according to claim 1; It is characterized in that; Said reversing bar (47) is double armed lever and is bearing in swingably in the axle (57) that is fixed on the case place; Wherein, said reversing bar first minute arm (54) connect with said contact lever (5), and said reversing bar (47) second minute arm (55) connect with said trip rod (21).
3. electric installation switchgear according to claim 2; It is characterized in that; In the recess of second arm (55) of said reversing bar (47) can vertical displaceable mode to be supported with insert (56) and to load on the direction of case front side (15), insert being carried out elasticity; Wherein, the connection of said insert (56) foundation and said trip rod (21).
4. electric installation switchgear according to claim 3; It is characterized in that; Locate to be configured with effect projection at said trip rod (21) towards said insert (56); And locate to be configured with notch at said insert (56), wherein, be bearing in said insert (56) in the effect projection of the above trip rod of primary importance (21) of said insert (56) and locate towards said effect projection; And wherein, the effect projection at the above bump of the second place (21) bar of said insert (56) is contained in the said notch with displaceable mode.
5. electric installation switchgear according to claim 1 is characterized in that, said contact lever (5) is configured to movable contact bridge; It is provided with two movable contacts (3,3 '), said movable contact (3; 3 ') with two fixing contacts (2,2 ') acting in conjunction to be used to form two contacts (4,4 '); Wherein, the reset force of said contact lever (5) through contact pressure spring (38) is being loaded on the direction of said fixing contact (2,2 ').
6. electric installation switchgear according to claim 5; It is characterized in that; Being provided with transmission bar (39) and said transmission bar (39) is bearing in the axle (40) that is fixed on the case place swingably; Wherein, said transmission bar (39) is delivered to the reset force of said contact pressure spring (38) on the said contact lever (5).
7. electric installation switchgear according to claim 6 is characterized in that, is configured with the protuberance (42) that has slotted hole (58) at said contact lever place (5), and locates to be configured with the connection projection of guiding in said slotted hole (58) at said reversing bar (47).
8. electric installation switchgear according to claim 1 is characterized in that, said switching mechanism is provided with locking rod (27); The one of which end is loaded with projecting part (45); Wherein, when causing said contact (4,4 ') disconnection through said switching mechanism or keeping breaking off; Said locking rod (27) utilizes its projecting part (45) that said contact lever (5) is loaded to be used to break off said contact (4,4 ').
9. electric installation switchgear according to claim 8 is characterized in that, said projecting part (45) is loaded with plastic seating (46).
10. according to each described electric installation switchgear in the aforementioned claim; It is characterized in that; Said installation switchgear is provided with overcurrent release (7); Said overcurrent release (7) comprises switching mechanism operating element (48); Said switching mechanism operating element (48) carries out the transition to the dropout position from resting position when overcurrent is threaded off, and under the situation of overcurrent dropout, said overcurrent release (7) produces said switching mechanism (8) through the second effect connecting line (10) and does in order to be used for through said switching mechanism (8) said contact (4) disconnection and maintenance being broken off.
11. electric installation switchgear according to claim 10 is characterized in that, said short circuit current release (6) and said overcurrent release (7) are seen on the flow direction of electric current through said current path and one after the other are arranged in the said case (12).
12. electric installation switchgear according to claim 11; It is characterized in that; Said case (12) has front side (15); And locate to be provided with joystick (16) in said front side (15), being used for the said switching mechanism of manual control (8), and said switching mechanism (8) is arranged in said case (12) between said short circuit current release (6) and said front side (15).
13. electric installation switchgear according to claim 10; It is characterized in that; The switching mechanism operating element (48) of said overcurrent release joins with overcurrent magnetic circuit coupling; Wherein, the magnetic field of power through overcurrent that acts on the said switching mechanism operating element (48) produces, wherein; Said switching mechanism operating element (48) is attached to the electromagnetic type damping element and sentences and be used for adjustment and thread off time of delay, and wherein said switching mechanism operating element (48) connects to be used to adjust overcurrent dropout threshold value with adjustment element (50).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011008832A DE102011008832A1 (en) | 2011-01-19 | 2011-01-19 | Service switching device |
| DE102011008832.6 | 2011-01-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202352597U true CN202352597U (en) | 2012-07-25 |
Family
ID=45440053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201711657U Expired - Fee Related CN202352597U (en) | 2011-01-19 | 2011-03-14 | Electrical installation switch equipment |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2479770A1 (en) |
| CN (1) | CN202352597U (en) |
| DE (1) | DE102011008832A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109038144A (en) * | 2018-09-20 | 2018-12-18 | 苏州工业园区斯博自动化控制设备有限公司 | A kind of connector short-circuit mechanism |
| CN110120629A (en) * | 2018-02-06 | 2019-08-13 | Ls产电株式会社 | Switchgear with earthing switch |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112687482A (en) * | 2021-01-22 | 2021-04-20 | 何贵庭 | Connecting device with two non-concentric shafts |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4118681A (en) * | 1976-05-12 | 1978-10-03 | Merlin Gerin | High-speed current-limiting device having a contact reclosing retarding member |
| FR2446538A1 (en) * | 1979-01-11 | 1980-08-08 | Merlin Gerin | LOW VOLTAGE LIMITER CIRCUIT BREAKER WITH IMPROVED ELECTROMAGNETIC TRIGGER |
| JPS5669745A (en) * | 1979-11-10 | 1981-06-11 | Terasaki Denki Sangyo Kk | Circuit breaker |
| DE3030429A1 (en) * | 1980-08-12 | 1982-09-30 | Brown, Boveri & Cie Ag, 6800 Mannheim | ARC CHAMBER |
| JPS60189134A (en) * | 1984-03-09 | 1985-09-26 | 寺崎電気産業株式会社 | Circuit breaker |
| DE8620645U1 (en) * | 1986-07-31 | 1988-01-28 | Siemens Ag, 1000 Berlin Und 8000 Muenchen, De | |
| FR2768856B1 (en) * | 1997-09-24 | 1999-11-12 | Schneider Electric Sa | ELECTROMAGNETIC CIRCUIT BREAKER WITH MOBILE FORK CONTACT PROPELLER |
| FR2807565B1 (en) * | 2000-04-10 | 2003-03-14 | Schneider Electric Ind Sa | POLE FOR AN ELECTRIC CIRCUIT BREAKER LOW POWER VOLTAGE LIMITER AND CIRCUIT BREAKER PROVIDED WITH SUCH A POLE |
| DE102004012919A1 (en) * | 2004-03-17 | 2005-10-20 | Abb Patent Gmbh | Rear derailleur for an electrical service switching device |
| DE102008006863A1 (en) | 2007-05-23 | 2009-01-22 | Abb Ag | Electrical service switching device |
| EP2251887B1 (en) | 2009-05-15 | 2016-03-16 | Abb Ag | Electromagnetic trip device |
| EP2254140B1 (en) | 2009-05-19 | 2013-11-27 | Abb Ag | Thermally independent overcurrent tripping device |
-
2011
- 2011-01-19 DE DE102011008832A patent/DE102011008832A1/en not_active Withdrawn
- 2011-03-14 CN CN2011201711657U patent/CN202352597U/en not_active Expired - Fee Related
- 2011-12-22 EP EP11010144A patent/EP2479770A1/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110120629A (en) * | 2018-02-06 | 2019-08-13 | Ls产电株式会社 | Switchgear with earthing switch |
| CN109038144A (en) * | 2018-09-20 | 2018-12-18 | 苏州工业园区斯博自动化控制设备有限公司 | A kind of connector short-circuit mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102011008832A1 (en) | 2012-07-19 |
| EP2479770A1 (en) | 2012-07-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202217630U (en) | Switch mounting device | |
| US5313180A (en) | Molded case circuit breaker contact | |
| CA2593456A1 (en) | Design and method for keeping electrical contacts closed during short circuits | |
| CN101231926A (en) | Actuating mechanism of small size circuit breaker | |
| BRPI1105815B1 (en) | break device with arc break protector | |
| CN202352597U (en) | Electrical installation switch equipment | |
| CN202259092U (en) | Electric installation switch equipment and contact bridge | |
| CN100555507C (en) | Miniature circuit breaker | |
| CN202259089U (en) | Electrical switch mounting device and overcurrent release device | |
| JP5156101B2 (en) | Circuit breaker for wiring | |
| CN202275790U (en) | Electrical installation switch device | |
| CN102820179A (en) | Release for an electrical switching arrangement | |
| CN103875053B (en) | The structure external member of multipole circuit breaker | |
| KR20090085976A (en) | Current limiter of circuit breaker | |
| CN101197228A (en) | Circuit breaker | |
| CN202695347U (en) | Miniature circuit breaker | |
| CN201985057U (en) | Electrical installation switch equipment and system comprising installation switch equipment and auxiliary switch | |
| CN106920718B (en) | Multipole molding outer casing formula breaker | |
| RU97210U1 (en) | AUTOMATIC SWITCH CONTROL MECHANISM | |
| CN102217023B (en) | Electrical overcurrent relay having rocker which is borne such that it can pivot | |
| KR100595463B1 (en) | A movable contactor assembly for a mould cased circuit breaker | |
| CN101630610B (en) | Electromagnetic device of breaker | |
| CN201252065Y (en) | Electromagnetic device of a breaker | |
| TWI673744B (en) | Breaker | |
| JP7293509B2 (en) | Crossbar assembly and trip device including same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20140314 |