CN202259089U - Electrical switch mounting device and overcurrent release device - Google Patents
Electrical switch mounting device and overcurrent release device Download PDFInfo
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- CN202259089U CN202259089U CN 201120147730 CN201120147730U CN202259089U CN 202259089 U CN202259089 U CN 202259089U CN 201120147730 CN201120147730 CN 201120147730 CN 201120147730 U CN201120147730 U CN 201120147730U CN 202259089 U CN202259089 U CN 202259089U
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- overcurrent
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
- H01H71/32—Electromagnetic mechanisms having permanently magnetised part
- H01H71/321—Electromagnetic mechanisms having permanently magnetised part characterised by the magnetic circuit or active magnetic elements
- H01H71/323—Electromagnetic mechanisms having permanently magnetised part characterised by the magnetic circuit or active magnetic elements with rotatable armature
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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
- H01H71/42—Induction-motor, induced-current, or electrodynamic release mechanisms
- H01H71/43—Electrodynamic release mechanisms
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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
- H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
- H01H71/7463—Adjusting only the electromagnetic mechanism
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- 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
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Breakers (AREA)
Abstract
The utility model relates to an electrical switch mounting device and an overcurrent release device, wherein the electrical switch mounting device is provided with a current path, a contact rod, an overcurrent release device comprising a switching mechanism operating element, and a switching mechanism. The electrical switch mounting device and the overcurrent release device are characterized in that the switching mechanism operating element of the overcurrent release device is coupled with an overcurrent magnetic path, and a force acting on the switching mechanism operating element is generated through an overcurrent magnetic field, wherein the magnetic path comprises a permanent magnet and a stator, the stator is used as a portion of the magnetic core of the magnetic path, at least a portion of the stator is encircled by at least one turn of a conductor, a rotor is rotatably supported inside the internal area of the stator, and the position of the rotor is provided with a hole extending along a central axis, supporting plates located at each end side, a limit spring, and a copper pipe, which are all used as other accessories, and thereby the rotor and the accessories can be used as a pre-machinable assembly to be mounted in an inner cavity of the stator.
Description
Technical field
The utility model relates to a kind of electric installation switchgear
and 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; Overcurrent release, it comprises that this switching mechanism executive component of switching mechanism executive component
carries out the transition to the dropout position from resting position when overcurrent is threaded off; And switching mechanism (Schaltwerk), it comprises the bar 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 2,008 006 863 A1.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 connection by means of the switching mechanism executive component under the state of bending, and then the contact is lasting equally breaks off, up to switching mechanism only lock and then contact ability Reclosable again.
In having the known installation switchgear of thermo bimetal's release well known in the prior art, bimetallic is out of shape when ambient temperature changes equally, and therefore this overcurrent release according to prior art often must connect with compensation arrangement.
The utility model content
Therefore, the purpose of the utility model is, so improves such installation switchgear,, makes that overcurrent release is temperature independent under simple in structure and the situation being convenient to install that is.
This purpose realizes through electric installation switchgear according to the present invention.
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; Overcurrent release, it comprises the switching mechanism executive component, this switching mechanism executive component carries out the transition to the dropout position from resting position when overcurrent is threaded off; And switching mechanism, it comprises the bar that can between resting position and dropout position, swing.The switching mechanism executive component of overcurrent release and overcurrent magnetic circuit coupling join (koppeln), thereby the magnetic field of power through overcurrent that acts on the switching mechanism executive component produces, wherein; Magnetic circuit comprises the permanent magnet that is configured to cylindrical rotor, and wherein, magnetic circuit comprises the stator of tubulose in addition; Stator is the part of the magnetic core of magnetic circuit; And stator at least part by at least one circle (Windung) of the conductor (Leiter) of carrying electric current around, wherein, rotor can be rotated to support in the interior zone of tubular stator; And wherein, be configured with as other annex (Anbauteil) at the rotor place:
-the hole that in the axis, stretches is used to hold as the acting axle of switching mechanism executive component,
-at the support plate at each distolateral place,
-limit spring, being used to adjust overcurrent dropout threshold value,
-copper pipe, it is used for adjustment as the electromagnetic damping element threads off time of delay,
Thereby but rotor can be packed in the inner chamber of stator as the assembly of preprocessing with annex.
According to the utility model; The magnetic field of power through overcurrent that acts on the switching mechanism executive component produces; Wherein, The switching mechanism executive component is attached to the electromagnetic type damping element and sentences and be used for adjustment and thread off time of delay, and wherein, the switching mechanism executive component with adjust element and connect mutually to be used to adjust overcurrent dropout threshold value.In this very favorable execution mode, overcurrent is threaded off and is also realized as the electromagnetic trip system.The advantage that this had is that overcurrent is threaded off and can be carried out temperature independently.Because in thermo bimetal's release known in the prior art, bimetallic is out of shape when variation of ambient temperature equally, so must connect mutually with compensation arrangement mostly according to this overcurrent release of prior art.Do not show temperature dependency according to the utility model employed magnetic-type overcurrent release in installation switchgear.The electromagnetic type damper is realized by means of copper pipe.In this copper pipe,, rotor produces eddy current when rotating, and therefore the magnetic field reaction of this eddy current and rotor also works with the mode of damping.
According to the utility model, the switching mechanism executive component is can be around the axle of its longitudinal axis swivel bearing.Axle is connected with the rotor of near cylindrical, and this rotor comprises permanent magnet, and this rotor can be rotated to support in the inner chamber of approximate tubular stator; Wherein, Stator is the part of the magnetic core of magnetic circuit, and wherein, at least one circle of the conductor of conveying current path electric current is around stator.Under the situation of overcurrent, the magnetic field of magnetic circuit makes rotor rotation and the switching mechanism executive component is rotated with the mode through the induction of the overcurrent in the conductor.Therefore the resting position of switching mechanism executive component can be confirmed with respect to the position, different angle of stator through rotor with the dropout position.
Through the structure according to the overcurrent release of the utility model, it is designed to be convenient to very much install.But in the rotor assembly preprocessing and the stator of packing into fully.
According to a kind of favourable execution mode of the utility model, stator is by two and half shell structures, thereby can be assembled into stator after among half shell in the rotor assembly of preprocessing is packed half shell into.
According to a kind of favourable execution mode of the utility model, the place, hole in rotor is configured with the portion of scabbling (Abflachung) at least partly, thereby can realize antitorque ground (verdrehsicher) retainer shaft thus.
A kind of favourable execution mode according to the utility model; Installation switchgear also is provided with electromagnetic type short circuit current release; It comprises the magnetic circuit that has air gap; And wherein; Contact lever part at least is arranged in the air gap of magnetic circuit; 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 on the contact lever that acts on; And switching mechanism acts on the contact lever being used to make the contact to break off and/or keep breaking off through the first effect connecting line (Wirkverbindungslinie), and overcurrent release acts on the switching mechanism being used for making the contact break off and keep breaking off through switching mechanism through the second effect connecting line under the situation that overcurrent is threaded off, and contact lever acts on the switching mechanism to be used to the making contact keep breaking off through the 3rd effect connecting line under the situation that short circuit is threaded off.
Installation switchgear according to the utility model has such advantage; Promptly; Short circuit current cuts off than the known device in routine and carries out quickly, wherein, and other functional characteristic; For example overcurrent is threaded off, is being continued holding contact release, reclosing etc. after switching mechanism ends lock again 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, contact lever is configured to movable contact bridge, and it is provided with two movable contacts, and they and two fixing contact actings in conjunction are to be used to form two contacts.Produce double-contact thus, it has such advantage, that is, each single branch contact when short circuit current cuts off than under unique contact situation, bearing lighter load.
According to one of the utility model favourable execution mode; The switching mechanism executive component is provided with control cam
with control curve (Steuerkurve) and trip rod at its free end and is bearing in control curve place when the switching mechanism executive component carries out the transition in the dropout position, in rotor rotation the time, makes to cause that thus trip rod swings in the unlocked position.The control curve of the axle of second between overcurrent release and switching mechanism effect connecting line through rotor, control cam stretches on the trip rod.
According to one of the utility model favourable execution mode, the control curve has the inclined plane shape that has first curve section and second curve section, wherein, the surface slope in first curve section (Rampensteigung) than in second curve section gently.Prevent too fast dropout thus and utilize this inclined-plane to produce the tolerance balance of the position of the axis that is used for axle.The bigger gradient (Steigung) when rotational motion finishes advantageously causes reliable dropout.
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 action bars at this place, front side; To be used for the manual operation 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.
In addition, the object of the invention is realized through overcurrent release according to the present invention.
This overcurrent release uses in electric installation switchgear, and overcurrent release comprises the switching mechanism executive component, and this switching mechanism executive component carries out the transition to the dropout position from resting position when overcurrent is threaded off; It is characterized in that the switching mechanism executive component of overcurrent release and overcurrent magnetic circuit coupling join, thereby the magnetic field of power through overcurrent that acts on the switching mechanism executive component produces; Wherein, magnetic circuit comprises the permanent magnet that is configured to cylindrical rotor, wherein; Magnetic circuit comprises the stator of tubulose in addition, and stator is the part of the magnetic core of magnetic circuit, and stator at least part by at least one circle of the conductor of carrying electric current around; Wherein, Rotor can be rotated to support in the interior zone of tubular stator, and wherein, has as other attachment construction at the rotor place:
-the hole that in the axis, stretches to be being used to hold as the acting axle of switching mechanism executive component,
-at the support plate at each distolateral place,
-limit spring, being used to adjust overcurrent dropout threshold value,
-copper pipe, it is used for adjustment as the electromagnetic type damping element threads off time of delay,
Thereby but rotor can be packed in the inner chamber of stator as the assembly of preprocessing with annex.
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 switching mechanism executive component and trip rod of Fig. 2,
Fig. 4 has shown the view of the overcurrent release that has the stator that partially opens;
Fig. 5 has shown the detail drawing of overcurrent release.
List of reference characters
1 electric installation switchgear
2,2 ' fixing contact
3,3 ' 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 action bars
17 fixation side
18 immobilising devices, holding flange
19 immobilising devices, movable flange
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
37 the first arms
38 contact pressure springs
39 transmit bar
40 are fixed on the axle at case place
41 transmit the first limit leg of bar
42 protuberances (Ansatz)
43 transmit the second limit leg of bar
The other end of 44 locking rods
45 projecting parts (Ansatzteil)
46 plastic seatings (Kunststoffauflage)
47 reversing bars (Umlenkhebel)
48
49,49 ', 49 " pieces (Leiterst ü ck)
50 limit spring (Fesselfeder)
51 control cams
52 control curves
Second arm of 53 trip rods
101 brass axles
111 scabble portion
102 magnets
103 yokes (Joch)
The supporting in 104 left sides
The supporting on 105 right sides
The brake component in 141 left sides (Arretierung)
The brake component on 151 right sides
106 limit spring
107 protective casings (Abdeckh ü lse)
108 copper pipes
109 arresting discs (Anschlagscheibe)
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 12 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.Also 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 2010/130414 A1.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 fixing 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 file WO 2010/133346 A1.
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 action bars 16 and these action bars 16 operation shifting mechanisms 8 capable of using; Wherein, action bars 16 supporting and 15 stretch out and can be in being fixed on the axle 32 at case place from the case peripheral operation from the front side.Switching mechanism 8 is implemented according to the switching mechanism of in file DE 10 2,008 006 863 A1, 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 action bars (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 pin 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 stent 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 stent 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 (ausschalten), 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 stent 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, switch knob 22 swings 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 stent 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.
Free end at axle 48 is configured with control cam 51.This control cam 51 is similar to has the shape of cylinder, is cut open to its side portion segmentation (aufschneiden).Be configured with control curve 52 in the part that in the control cam, is being cut open.Second arm 53 of trip rod 21 is bearing in this control curve 52 places.Control curve 52 forms as this place of looking like of three-dimensional, that is, make control curve 52 when axle 48 carries out the transition in the dropout position when axle 48 clockwise rotates with the mode on inclined-plane at second arm, 53 places of trip rod 21 through (ablaufen).Because the surface slope trip rod is swung when axle 48 clockwise rotates, make its first arm to produce and do in order to be used for the release switching mechanism and to be used for break contact 4,4 ' to release lever 20.
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.
Observe Figure 4 and 5 now.
Magnet rotor 102 is provided with hole concentric, that scabble at a position and loads onto on the axle 101, and this scabbles portion 111 and in Fig. 5, can see.Axle 101 is by for example brass manufacturing of nonmagnetic metal.The parts 48 that are called axle among axle 101 and Fig. 1-3 act on identical.Axle 101 is provided with first support plate (left side) 104.The transparent copper pipe that illustrates 108 is pushed on support plate 104 and the arresting disc 109 among Fig. 5.
Arresting disc 109 prevents that magnet 102 from rotating in yoke at the rotor assembly assembly process.Rotor assembly and limit spring 106 are installed jointly.The magnetic field of magnet 102 has been described in file WO 2010/133346 A1 and through conductor 49 " in the magnetic field that in stator (being yoke 103), produces of electric current should form the angle between 10 ° and 40 °.Under assembly process magnet 102 unclamped situation, the prestressing force of limit spring 106 makes magnet 102 towards the magnetic field of magnet 102 with through conductor 49 " in the magnetic field that in stator (being yoke 103), produces of electric current between rotate on 0 ° the direction of angle.In order to keep necessary angle to be provided with arresting disc 109 at assembly process.This arresting disc so designs, that is, it allows magnet 102 on the dropout direction, promptly on the direction of wide-angle more, rotating, but prevents towards littler angle cycle.Refer again to file WO2010/133346 A1 about corresponding angular range.
Carry out the installation of second support plate (right side) 105 then.After this carry out the installation of limit spring 106 and protective casing 107.Then this assembly integral body is packed in the yoke 103 (stator).The magnet 102 that has supporting 104,105 through brake component 141,151 can not rotate in yoke and be in the tram.Therefore define the necessary angle of magnet 102 with respect to the south poles of yoke axis.The upper half shell of yoke 103 is installed at last.This layout makes whole rotor assembly be installed in (einst ü ckig) yoke of single-piece equally becomes possibility.
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 (9)
1. an electric installation switchgear (1); Have: current path; It stretches between first joint Terminal (13) and second joint Terminal (14) in case (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); Overcurrent release (7), it comprises switching mechanism executive component (48), this switching mechanism executive component (48) carries out the transition to the dropout position from resting position when overcurrent is threaded off; And switching mechanism (8), it comprises the bar (21) that can between resting position and dropout position, swing, it is characterized in that; The switching mechanism executive component (48) of said overcurrent release and overcurrent magnetic circuit coupling join, thereby the magnetic field of power through overcurrent that acts on the said switching mechanism executive component (48) produces, wherein; Magnetic circuit comprises the permanent magnet that is configured to cylindrical rotor, and wherein, magnetic circuit comprises the stator of tubulose in addition; Said stator is the part of the magnetic core of magnetic circuit; And said stator at least part by at least one circle of the conductor of carrying electric current around, wherein, said rotor can be rotated to support in the interior zone of said tubular stator; And wherein, have as other attachment construction at said rotor place:
-the hole that in the axis, stretches to be being used to hold as the acting axle of said switching mechanism executive component,
-at the support plate at each distolateral place,
-limit spring, being used to adjust overcurrent dropout threshold value,
-copper pipe, it is used for adjustment as the electromagnetic type damping element threads off time of delay,
Thereby but said rotor can be packed in the inner chamber of said stator as the assembly of preprocessing with said annex.
2. electric installation switchgear according to claim 1 is characterized in that, said stator is by two and half shell structures, thereby said half shell can be assembled into stator after the rotor assembly of preprocessing is encased among in half shell.
3. electric installation switchgear according to claim 1 is characterized in that, the place, hole in said rotor is configured with the portion of scabbling at least partly, thereby can realize antitorque ground retainer shaft thus.
4. electric installation switchgear according to claim 1; Have electromagnetism short circuit current release (6); It comprises the magnetic circuit that has air gap; 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) produces said contact lever (5) through the first effect connecting line (9) and does in order to be used to that said contact (4) disconnection and/or maintenance are broken off; Said overcurrent release (7) produces said switching mechanism (8) through the second effect connecting line (10) and does in order to being used for making said contact (4) break off and keep breaking off through said switching mechanism (8) under the situation that overcurrent is threaded off, and said contact lever (5) produces said switching mechanism (8) through the 3rd effect connecting line (11) and does in order to be used to make said contact (4) maintenance disconnection under the situation that short circuit is threaded off.
5. electric installation switchgear according to claim 1; It is characterized in that; Said switching mechanism executive component (48) is provided with the control cam (51) with control curve (52) at its free end, and said trip rod (21) is bearing in said control curve (52) and locates and cause that thus said trip rod (21) swings in the unlocked position when said switching mechanism executive component (48) carries out the transition in the dropout position.
6. electric installation switchgear according to claim 5; It is characterized in that; Said control curve (52) has the inclined plane shape that has first curve section and second curve section, wherein, and mild than in said second curve section of the surface slope in said first curve section.
7. an overcurrent release (7) is used for using at electric installation switchgear, and said overcurrent release (7) comprises switching mechanism executive component (48); This switching mechanism executive component (48) carries out the transition to the dropout position from resting position when overcurrent is threaded off, and it is characterized in that, the switching mechanism executive component (48) of said overcurrent release joins with overcurrent magnetic circuit coupling; Thereby the magnetic field of power through overcurrent that acts on the said switching mechanism executive component (48) produces, and wherein, magnetic circuit comprises the permanent magnet that is configured to cylindrical rotor; Wherein, Magnetic circuit comprises the stator of tubulose in addition, and said stator is the part of the magnetic core of magnetic circuit, and said stator at least part by at least one circle of the conductor of carrying electric current around; Wherein, Said rotor can be rotated to support in the interior zone of said tubular stator, and wherein, the place has as other attachment construction at said rotor:
-the hole that in the axis, stretches to be being used to hold as the acting axle of said switching mechanism executive component,
-at the support plate at each distolateral place,
-limit spring, being used to adjust overcurrent dropout threshold value,
-copper pipe, it is used for adjustment as the electromagnetic type damping element threads off time of delay,
Thereby but said rotor can be packed in the inner chamber of said stator as the assembly of preprocessing with said annex.
8. electric installation switchgear according to claim 1 is characterized in that, said stator is by two and half shell structures, thereby said half shell can be assembled into stator after the rotor assembly of preprocessing is encased among in half shell.
9. electric installation switchgear according to claim 1 is characterized in that, the place, hole in said rotor is configured with the portion of scabbling at least partly, thereby can realize antitorque ground retainer shaft thus.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011008833.4 | 2011-01-19 | ||
| DE201110008833 DE102011008833B4 (en) | 2011-01-19 | 2011-01-19 | Overcurrent release and service switching device with overcurrent release |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202259089U true CN202259089U (en) | 2012-05-30 |
Family
ID=45442772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120147730 Expired - Fee Related CN202259089U (en) | 2011-01-19 | 2011-03-15 | Electrical switch mounting device and overcurrent release device |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2479774A3 (en) |
| CN (1) | CN202259089U (en) |
| DE (1) | DE102011008833B4 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108022812A (en) * | 2018-01-18 | 2018-05-11 | 常熟开关制造有限公司(原常熟开关厂） | A kind of breaker with magnetic release |
| CN109196745A (en) * | 2016-04-11 | 2019-01-11 | 费斯托工具有限责任公司 | Hand held power machine with separating switch |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017028891A1 (en) * | 2015-08-17 | 2017-02-23 | Abb Schweiz Ag | Damper and circuit breaker with damper |
| CN111627731B (en) * | 2020-07-01 | 2024-03-22 | 哈尔滨理工大学 | Quick high-voltage switch based on combined action of gas discharge and mechanical contact |
| EP3965130A1 (en) * | 2020-09-07 | 2022-03-09 | ABB Schweiz AG | A switching system |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1130050B (en) * | 1958-12-23 | 1962-05-24 | English Electric Co Ltd | Overcurrent time relay |
| 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 |
| ES2133339T3 (en) * | 1992-03-31 | 1999-09-16 | Ellenberger & Poensgen | PROTECTION SWITCH WITH REMOTE CONTROL. |
| US6191947B1 (en) * | 1998-09-28 | 2001-02-20 | Siemens Energy & Automation, Inc. | Electronic trip unit and mounting method |
| 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 DE201110008833 patent/DE102011008833B4/en not_active Expired - Fee Related
- 2011-03-15 CN CN 201120147730 patent/CN202259089U/en not_active Expired - Fee Related
- 2011-12-22 EP EP11010145.8A patent/EP2479774A3/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109196745A (en) * | 2016-04-11 | 2019-01-11 | 费斯托工具有限责任公司 | Hand held power machine with separating switch |
| CN109196745B (en) * | 2016-04-11 | 2020-06-09 | 费斯托工具有限责任公司 | Hand-held power tool with a disconnecting switch |
| US11084142B2 (en) | 2016-04-11 | 2021-08-10 | Festool Gmbh | Hand-held machine tool comprising a disconnector |
| CN108022812A (en) * | 2018-01-18 | 2018-05-11 | 常熟开关制造有限公司(原常熟开关厂） | A kind of breaker with magnetic release |
| CN108022812B (en) * | 2018-01-18 | 2023-08-18 | 常熟开关制造有限公司(原常熟开关厂） | Circuit breaker with magnetic release |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102011008833B4 (en) | 2013-03-07 |
| EP2479774A2 (en) | 2012-07-25 |
| EP2479774A3 (en) | 2014-06-25 |
| DE102011008833A1 (en) | 2012-07-19 |
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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: 20120530 Termination date: 20140315 |