CN202259096U - Magnetic system for circuit protection switch and switch mounting equipment with magnetic system - Google Patents
Magnetic system for circuit protection switch and switch mounting equipment with magnetic system Download PDFInfo
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- CN202259096U CN202259096U CN2010205232835U CN201020523283U CN202259096U CN 202259096 U CN202259096 U CN 202259096U CN 2010205232835 U CN2010205232835 U CN 2010205232835U CN 201020523283 U CN201020523283 U CN 201020523283U CN 202259096 U CN202259096 U CN 202259096U
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- 238000009434 installation Methods 0.000 claims description 28
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- 238000012423 maintenance Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 5
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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
- H01H71/2454—Electromagnetic mechanisms characterised by the magnetic circuit or active magnetic elements
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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
- H01H71/322—Electromagnetic mechanisms having permanently magnetised part characterised by the magnetic circuit or active magnetic elements with plunger type armature
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electromagnets (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
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Abstract
The utility model relates to a magnetic system for a circuit protection switch and switch mounting equipment with the magnetic protection switch. Particularly, the magnetic system of the circuit protection switch is provided with a magnetic armature used for driving a bump pin, a contact lever, and a control lever with a linkage part which is acted by the first end part of a limit spring, wherein, the back pulling force of the limit spring faces the neutral position of the control lever so as to load the control lever; the control lever can leave the neutral position of the control lever under the action of the bump pin so as to overcome the back pulling force of the limit spring, thereby vibrating to the tripping position of the control lever; the contact lever and the control lever are in linkage which can switch the vibratory movement of the control lever to the vibratory movement of the contact lever; and the magnetic armature is confined in an initial position through a permanent magnet spacing device and is disengaged for driving the bump pin after exceeding a pre-settable short circuit current value.
Description
Technical field
The utility model relates to a kind of magnetic system and a kind of installation switchgear
that is used for line protection switch
Background technology
For example, the installation switchgear of the type is a selecting type main line protection switch.Such main line protection switch is mainly used in the following wiring chamber (Anschlussraum) of instrument board
, for example in indoor installation (Hausinstallationsanlage).The circuit (Stromkreis) of postposition optionally and is automatically cut off when overcurrent
and short circuit current occurring through this main line protection switch, this main line protection switch concurs with rearmounted line protection switch (this rearmounted line protection switch is associated with independent load circuit (Verbraucherstromkreise) respectively) protects electric installation to avoid dangerous overcurrent and short circuit current.
For the cut-out when the short circuit, the installation switchgear of the type has magnetic system.At this, within several milliseconds, realize cutting off through the electromagnet that has electric current to flow through.For example, the magnetic system of known the type from file DE 102008021768.This magnetic system comprises magnetic core (Magnetkern) and has the magnetic circuit (Magnetkreis) of movable armature keeper (being also referred to as bump armature (Schlaganker)), also comprises the coil block that comprises coil pipe (Spulenrohr) that has core yoke plate (Kernjochplatte) (magnetic core is fixed on this core yoke plate place) and yoke armature card (Joch-Ankerplatte) and yoke side component (Joch-Seitenteile) (this yoke side component is connected the core yoke plate with the yoke armature card) in addition.Yoke side component and core yoke plate and yoke armature card are formed for having the housing of the coil block of armature jointly, and are formed for the distance of magnetic flux (magnetischer Fluss).Striker is arranged in the through hole (Durchgangsloch) of magnetic core.Sentence the mode that to swing at the core yoke plate and be supported with the control lever.Limit spring acts on control lever place and acts on the engagement lever place of contact site.At this; The returning place force of limit spring is loading the control lever on the direction of the neutral position of this control lever; And in the direction of the closure state (Schlie β stellung) of engagement lever, engagement lever is being loaded, during fixing contact and movable contact are in each other and contact in this closure state and main contact site is closed therefrom.Here, limit spring causes the spacing power (Fesselungskraft) that is used for contact pressure and control lever simultaneously.
When short circuit current occurring, bump armature is quite apace towards the magnetic core motion and to striker generation effect, so that this bump armature passes yoke armature card touching control lever.The neutral state (Ruhestellung) that the returning place force that this bump armature makes this control lever overcome limit spring leaves this control lever is being moved on the direction of the dropout position of this control lever.Connection between control lever and engagement lever causes, at this control lever engagement lever is swung in the off-state of this engagement lever.In the off-state of engagement lever, main contact site breaks off so for a long time, that is, be cut off through its shut-off mechanism up to line protection switch.For even striker when the zero-crossing of alternating current (Nulldurchgang) through coil also can make main contact site continue to keep breaking off (offenhalten); (perhaps in armature keeper, perhaps in magnetic core) is provided with short-circuited conducting sleeve (Kurzschlussring) in magnetic system.Magnetic field in this induced current causes the maintenance disconnection of master contact site when current zero-crossing point.After main contact site breaks off, will commutate the current in the secondary current path (being also referred to as the selecting type loop).In the secondary current path, electric current reduces through selecting impedance, and in the secondary current path, flows through selecting type thermo bimetal (Selektivthermobimetall).When short circuit current does not cut off from the outside in the predeterminable time; The selecting type thermo bimetal is owing to electrical current heat
and with degree of curvature like this; Promptly; This selecting type thermo bimetal is to switching mechanism (Schaltwerk) generation effect, and after this this switching mechanism causes the disconnection of secondary contact site and the lasting maintenance disconnection of main contact site and secondary contact site.
Such power (that is, utilize this power, armature clashes into towards the control lever towards striker bump and this striker) depends on the level of short circuit current.The tripping characteristic of so-called line protection switch is pointed out, the dropout of short circuit fast operation under the rated current of several times in this line protection switch, and this short circuit is threaded off and has therefore been pointed out the threshold of reaction (Ansprechschwelle) of line protection switch.For example; The selecting type line protection switch is made according to so-called E characteristic; In this E characteristic; Short circuit current release
can threaded off under 5 to 6.25 times rated current under the situation of alternating current, but the rated current from 6.25 times must be threaded off under the situation of alternating current.
When electric current was lower than the dropout threshold value definite by characteristic (that is, 5 times rated current), magnetic system should not threaded off.Therefore; Spacing machinery (Fesselungsmechanik) (this mechanical system has comprised control lever and limit spring) so designs; Promptly; Make the power (this power can for example be called threshold force (Schwellenkraft)) of armature have only to rise and just enough make the control lever towards its dropout position swing from such short circuit current (that is, this short circuit current corresponding to the following threshold of reaction of corresponding tripping characteristic).At this, especially, with situation that the rigidity of limit spring is coordinated mutually under so choose lever ratio, that is, make at the force curve (Kraftverlauf) that surpasses the threshold force continued low as much as possible and stable when engagement lever is swung.
For the applicable cases of confirming; For example in industrial circle, also need have tripping characteristic that the higher short time postpones
, promptly have the equipment of the higher threshold of reaction.In order to realize this point, based on known so far equipment, spacing machinery must design and produce fully again, and this is expensive.
The utility model content
Therefore, based on solution well known in the prior art, expectation realizes such magnetic system, that is, this magnetic system designs to a dropout threshold value, and simply mode is modified so that under the situation of another one dropout threshold value at least, use.In addition, the purpose of the utility model is, realizes improved installation switchgear, and this installation switchgear designs to a dropout threshold value, and simply mode is modified so that under the situation of another one dropout threshold value at least, use.
The purpose that realizes improved magnetic system solves through such magnetic system, that is, this magnetic system: have armature keeper (Magnetanker), this armature keeper drives striker (Schlagstift); Have engagement lever supporting around a mode of rotating that is fixed on housing; Have control lever supporting around the mode of swinging axle swing; This control lever has first point of attachment (Koppelstelle); Limit spring (Fesselfeder) acts on this first point of attachment place with its first end; Wherein, The back pull of limit spring (R ü ckhaltekraft) loads this control lever with the mode towards the neutral position (Ruhelage) of controlling lever; And wherein; The back pull that the control lever can leave this control lever under the effect of striker neutral position overcomes limit spring swings in the dropout position
of this control lever, wherein, and at engagement lever with control between the lever and have connection (Kopplung); The oscillating motion that this connection will be controlled lever converts the oscillating motion of (ü bertragen) engagement lever to; Wherein, armature keeper passes through permanent magnet stopping means (zur ü ckhalten) in bond in its original position, and only after surpassing predeterminable short-circuit current value, just breaks away from (losrei β en) and drive striker then.
About installation switchgear; This purpose solves through such installation switchgear, that is, this installation switchgear has contact site (Kontaktstelle); This contact site forms between fixing contact and movable contact; This installation switchgear comprises magnetic system, this magnetic system: have armature keeper, this armature keeper drives striker; Have the engagement lever supporting around a mode of rotating that is fixed on housing, this engagement lever carries movable contact; Have control lever supporting around the mode of swinging axle swing; This control lever has first point of attachment; Limit spring acts on this first point of attachment place with its first end; Wherein, The back pull of limit spring loads this control lever with the mode towards the neutral position of controlling lever; And wherein, the control lever can leave this control lever under the effect of striker neutral position overcomes the back pull of limit spring and swings in the dropout position of this control lever, wherein; Between engagement lever and control lever, exist and connect; The oscillating motion that this connection will be controlled lever converts the oscillating motion of this engagement lever to the mode towards the off-state
of engagement lever, and contact fixing in this off-state separates with movable contact, and wherein; Armature keeper is bound in its original position through the permanent magnet stopping means, and only just disengaging and drive striker then after surpassing predeterminable short-circuit current value.
The existing magnetic system of the installation switchgear of the type is so revised; Promptly; With respect to the limit spring that has existed between control lever and the engagement lever (this limit spring also is the contact force spring simultaneously), introduce as spacing additional spacing of magnet by means of permanent magnet.
Therefore, spacing with respect to existing elasticity, it is spacing to be mounted with magnet.Thus, can realize higher spacing power.The spacing power that the control lever acts on the armature becomes big, and does not have to change the power effect to engagement lever.Only the kinetic current of magnetic system (Ansprechstrom) becomes big, and force curve remains unchanged when movable contact breaks off.
Through according to the utility model with magnet be applied in magnet spacing in, the maintenance that after the spacing separation with magnet, does not have confining force residue, whole armature power to can be used for movable contact is broken off.In the neutral state of armature keeper, the magnetic back pull is big.Yet; Be positioned at owing to short circuit current after on
desired value separately armature keeper being broken away from, the magnetic back pull approaches zero quite apace.
The suitable really sizing of the big I of the spacing power of magnetic through permanent magnet preset, and so is complementary with the desired threshold of reaction of short circuit current.
According to the favourable form of implementation of the utility model, the permanent magnet stopping means comprises permanent magnet and the retention tab that is fixed on the armature keeper place.At this; Permanent magnet can be attached in the armature keeper, for example at this place by means of press fit and/or bonding and be fixed on this armature keeper freely, the end of from yoke housing
, stretching out.This permanent magnet also can be contained in the recess at the free end place of armature keeper and be bonding at this place, or the flanging
at the edge of the free end through armature keeper keeps.The professional can obtain multiple other fixedly feasibility, to be connected with armature keeper for the permanent magnet with the magnet stopping means.
According to another favourable form of implementation, retention tab is with fixed-site (ortsfest) and mode that be separated with armature keeper and fix.This retention tab can be fixed on a place in half shell (Halbschale) of isolating material housing of switchgear in case side, and perhaps this retention tab also can be settled at the housing place of the outside of the yoke housing of magnetic system or at the coil pipe place around coil and be fixing.
According to another favourable form of implementation of the utility model, the permanent magnet stopping means comprises with fixed-site and mode that be separated with armature keeper and fixing permanent magnet.At this, permanent magnet can be fixed on a place in half shell of isolating material housing of switchgear in case side, and perhaps this permanent magnet also can be placed at the housing place of the outside of the yoke housing of magnetic tripping system or at the coil pipe place around coil and be fixing.In this flexible program, not forcing need be in the retention tab at armature keeper place.Armature keeper self can be attracted by the attraction of permanent magnet based on magnetic.
According to another advantageous forms of implementation of the utility model, the permanent magnet stopping means also can comprise the retention tab that is fixed on the armature keeper place.This retention tab can be processed by ferrimagnet, and therefore makes big magnetic confining force become possibility.
In the installation switchgear according to the utility model, armature keeper is bound in its original position through the permanent magnet stopping means, and only after surpassing predeterminable short-circuit current value, just breaks away from and the driving striker.
Description of drawings
Accompanying drawing is understood object better with describing to be used as.The parts of object or object (it is identical or similar basically) can be provided with identical reference number.Accompanying drawing only is the indicative icon of the form of implementation of the utility model.
Wherein:
Fig. 1 has schematically shown the installation switchgear according to the utility model according to the magnetic system of the utility model that has according to first kind of form of implementation,
Fig. 2 has schematically shown the installation switchgear according to the utility model according to the magnetic system of the utility model that has according to second kind of form of implementation.And
Fig. 3 has schematically shown the form of implementation according to the utility model of the bump armature that has the permanent magnet of putting into.
List of reference characters
2 magnetic systems
3 bump armature
4 are used for the axle that is fixed on housing of engagement lever
5 engagement levers
6 are used to control the swinging axle of lever
7 control levers
8 first points of attachment
9 limit spring
17 yoke housings
The contact arm of 20 engagement levers
The control arm of 21 engagement levers
The stop bridge fitting of 22 engagement levers
30 installation switchgears
31 isolating material housings
32 input terminals
33 lead-out terminals
34 main contacts site
35 fixing contacts
36 movable contacts
38 conductive strips (Leiterstreifen)
The maintenance bridgeware (Haltesteg) of 39 yokes
The trip arm of 40 control levers
The position limit arm of 41 control levers
42 permanent magnets
43 holding plates
45 strikers
46 magnetic coils
47 second recesses
48 spaces
Embodiment
At first observe Fig. 1.Fig. 1 has shown installation switchgear 30 with schematic sectional view, and this installation switchgear 30 has isolating material housing 31 and magnetic system 2.Here, installation switchgear 30 for example is a selecting type main line protection switch.Primary current path (Hauptstrompfad) stretches between input terminal 32 and lead-out terminal 33, and this primary current path can interrupt at 34 places in the contact site.Contact site 34 is formed between fixing contact 35 and the movable contact 36, and this fixing contact 35 and lead-out terminal 33 are in to conduct electricity and are connected.Movable contact 36 is positioned at the free end place of contact arm 20.Contact arm 20 is combined into double-arm lever (engagement lever 5) with control arm 21.At the connecting portion place between contact arm 20 and control arm 21, engagement lever 5 supports with the mode that in axis, can swing, this axis be fixed on housing and rotating shaft 4 that be bearing in the housing is alignd.The trend (Verlauf) of the current path that in Fig. 1 and Fig. 2, is shown is merely exemplary and schematically.Do not show main thermo bimetal in the accompanying drawings; The secondary current path that has selecting type impedance, secondary contact site and secondary contact bimetallic (Nebenkontakt-Bimetall); Or same switching mechanism; Because the utility model relates to magnetic system, and irrelevant with other the common design of member and assembly of installation switchgear.
The housing parts of the housing 17 of magnetic system 2 (being also referred to as yoke housing 17) (is that side component, base plate (according to employed term in file DE 102008021768A1, being also referred to as the yoke armature card) and covering plate (being also referred to as the core yoke plate) are made of metal at least in part.Current path stretches through conductive strips 38, magnetic coil 46, another conductive strips, engagement lever 5 and contact site 34 to lead-out terminal 33 from input terminal 32.
Magnetic system 2 is fixed in the inside of apparatus casing 31.
In side edge, be mounted with maintenance bridgeware 39 at the covering plate place of magnetic system 2 away from engagement lever 5.Swinging axle 6 is bearing in the free end place of this maintenance bridgeware 39, and control lever 7 supports with the mode that can swing around this swinging axle 6.
Basically as double-arm lever, control lever 7 is built with the trip arm 40 and position limit arm 41, wherein, between these two parts arms (the trip arm 40 and position limit arm 41), has the slight obtuse angle that is slightly larger than 90 °.In Fig. 1, control lever 7 is arranged in its neutral position, and the trip arm 40 is parallel to covering plate approximately.The free end of the free end of control arm 21 and the trip arm 40 is partly overlapping, and in overlap section closely near.In neutral position, striker 45 utilizes its free end place to abut in the free end place of the trip arm 40, and between the free end of the free end of the trip arm 40 and control arm 21, has less clearance.
When control lever 7 rotates the neutral position that leaves in Fig. 1 to be shown in a clockwise direction; The free end of the free end touching control arm 21 of the trip arm 40; And because this connection rotates in a counter-clockwise direction control lever 5, contact site 34 breaks off thus.
The point of attachment 8 that is used for limit spring 9 is positioned at the free end place of position limit arm 41.At engagement lever 5 places, near axle 4, be mounted with stop bridge fitting 22, these stop bridge fitting 22 near normal are in contact arm 20 or control arm 21 and give prominence to (abstehen).Another point of attachment that is used for limit spring 9 is positioned at the free end place of this stop bridge fitting 22.Herein, point of attachment is a hook, and the distolateral buttonhole of cylindrical spring can be suspended in this hook.
In the position shown in Fig. 1, limit spring 9 is sentenced the clockwise direction tractive at engagement lever 5, and sentences tractive counterclockwise at control lever 7.Thus, limit spring 9 causes at fixing contact 35 and the effect of 34 places, contact site between the movable contact 36 contact pressure that is in desired value is being arranged.
In addition, magnetic system 2 comprises the striker 45 that is driven by bump armature 3, herein this striker 45 shown in Fig. 1 for from covering plate, stretching out a little.When the short circuit current of sufficient intensity occurring; Striker 45 is manipulated into upwards further from covering plate plate 18, to come out; The free end of touching the trip arm 40, and the neutral position that the returning place force that overcomes limit spring 9 thus makes the control lever leave this control lever in a clockwise direction swings in the dropout position of this control lever.At this, bump armature is to striker 45 generation effects, and this striker 45 works as the connection element (Koppelglied) between bump armature and control lever again, and pushes or strike on the free end of the trip arm 40.Striker is arranged in the through hole of armature keeper.
Locating with striker 45 relative ends of armature keeper 3, permanent magnet 42 is connected with this armature keeper 3.Permanent magnet 42 also can be attached in the armature keeper 3.Fig. 3 has shown this flexible program.The bump armature 3 that shows in this place is the columniform matrixes that are essentially that for example are formed from steel.At the first cover-up surface place of this bump armature, this bump armature has and is used to hold and fixing first recess of striker 45.At the second cover-up surface place relative with striker, this bump armature has second recess 47, and this second recess 47 is coordinated with permanent magnet 42 aspect its size mutually.This second recess 47 is so wide and dark; Promptly; Make when permanent magnet 42 is inserted in this second recess 47; This permanent magnet 42 flushes ground (b ü ndig) and second cover-up surface closed (abschlie β en) mutually, and between the qualification face on the side direction of the side of permanent magnet 42 and second recess 47 the quite little space 48 of generation.Permanent magnet 42 is bonded in second recess 47 through adhesive.Adhesive also fills up space 48.Consider high magnetic force, quite narrow and small space 48 is suitable.
Mode to be associated with permanent magnet 42 has the holding plate 43 that keeps with the mode that is fixed on housing, is also referred to as retention tab 43.This holding plate 43 can be connected with the isolating material housing 31 of switchgear (as among Fig. 1), or also can in the inside of isolating material housing, be connected with the assembly that is fixed on housing, for example is connected with yoke housing 17, perhaps even with coil pipe is connected.
The parts of other of installation switchgear and assembly (for example thermal overload release, arc-extinction device, switching mechanism or auxiliary contact site) do not show in according to the schematic representation of Fig. 1.They are corresponding to parts well known in the prior art and assembly.
Do not having under the spacing situation of permanent magnet, the electromagnetic trip system has such tripping characteristic, that is, this tripping characteristic is preset individually through limit spring 9, for example is the E characteristic.Permanent magnet through being provided with according to the utility model is spacing, and simply mode makes tripping characteristic have the higher threshold of reaction based on the E characteristic.Needn't change other parts at electromagnetic trip system place, and the characteristic of electromagnetic trip system also needn't be changed further.
Observe Fig. 2 now.Fig. 2 has shown the another kind of form of implementation according to the electromagnetic trip system of the utility model.Parts, assembly or system identical or that play same function have with aforementioned figures in identical reference number.
Be different from the form of implementation that goes out as seen in fig. 1 in the following areas according to the form of implementation of Fig. 2, that is, and the location swap of permanent magnet 42 and retention tab 43.Retention tab 43 is connected with armature keeper 3, and permanent magnet 42 remains on the outside of armature keeper 3 with the mode that is fixed on housing herein, for example remains on the isolating material housing place.This permanent magnet 42 also can remain on yoke housing place or remain on the coil pipe place or remain on the outside of armature keeper with the known in principle mode of another kind.
Another kind here not through the flexible program shown in the accompanying drawing in, can save holding plate at armature keeper 3 places.So, armature keeper 3 can be directly by 42 maintenances of permanent magnet.
With respect to having the for example known solution of second traditional limit spring; The advantage according to the solution of the utility model by means of additional spacing (Zusatzfesselung) of permanent magnet is; Can realize higher spacing power through permanent magnet; And secondly after with spacing separation, do not have confining force to stay, and therefore then, whole armature power can be used for the disconnection of movable contact and keeps breaking off through magnet.In addition, mechanical structure is that simpler and structural expense is lower.
At this, the utility model also comprises preferred form of implementation and the independent design feature or the combination arbitrarily of improvement project, as long as they do not repel each other.
Claims (10)
1. magnetic system (2) that is used for line protection switch, this magnetic system (2): have armature keeper (3), said armature keeper (3) drives striker (45); Have the engagement lever (5) that supports with the mode that can rotate around the axle (4) that is fixed on housing; Have control lever (7) supporting around the mode of swinging axle (6) swing; Said control lever (7) has point of attachment (8); Limit spring (9) acts on said point of attachment (8) with its first end (10) and locates; Wherein, the back pull of said limit spring loads said control lever (7) towards the neutral position of said control lever (7), and wherein; Said control lever (7) can leave said control lever (7) under the effect of said striker (45) neutral position overcomes the back pull of said limit spring (9) and swings in the dropout position of said control lever (7); Wherein, between said engagement lever (5) and said control lever (7), exist to connect, said connection converts the oscillating motion of said control lever (7) to the oscillating motion of said engagement lever (5); It is characterized in that; Said armature keeper (3) is bound in its original position through permanent magnet stopping means (42,43), and only after surpassing predeterminable short-circuit current value, just breaks away from and drive said striker (45).
2. the magnetic system (2) that is used for line protection switch according to claim 1 is characterized in that, said permanent magnet stopping means (42,43) comprises and is fixed on permanent magnet (42) and the retention tab (43) that said armature keeper (3) is located.
3. the magnetic system (2) that is used for line protection switch according to claim 2 is characterized in that, said retention tab (43) is with fixed-site and mode that be separated with said armature keeper (3) and fix.
4. the magnetic system (2) that is used for line protection switch according to claim 1 is characterized in that, said permanent magnet stopping means (42,43) comprises with fixed-site and mode that be separated with said armature keeper (3) and fixing permanent magnet (42).
5. the magnetic system (2) that is used for line protection switch according to claim 4; It is characterized in that; Said permanent magnet stopping means (42,43) comprises and is fixed on retention tab (43) that said armature keeper (3) locates and with fixed-site and mode that be separated with said armature keeper (3) and fixing permanent magnet (42).
6. installation switchgear (30) that has magnetic system; Especially be line protection switch; Have contact site (34), said contact site (34) form between fixing contact (35) and movable contact (36), and said installation switchgear (30) comprises magnetic system (2); This magnetic system (2): have armature keeper (3), said armature keeper (3) drives striker (45); Have the engagement lever (5) that supports with the mode that can rotate around the axle (4) that is fixed on housing, said engagement lever (5) carries said movable contact (36); Have control lever (7) supporting around the mode of swinging axle (6) swing; Said control lever (7) has first point of attachment (8); Limit spring (9) acts on said point of attachment (8) with its first end (10) and locates; Wherein, The back pull of said limit spring loads said control lever (7) towards the neutral position of said control lever (7), and wherein, and said control lever (7) can leave said control lever (7) under the effect of said bump armature neutral position overcomes the back pull of said limit spring (9) and swings in the dropout position of said control lever (7); Wherein, Between said engagement lever (5) and said control lever (7), exist to connect, said connection converts the oscillating motion of said control lever (7) oscillating motion of said engagement lever (5) to the mode towards the off-state of said engagement lever (5), is separated at contact (35) and said movable contact (36) fixing described in the said off-state; It is characterized in that; Said armature keeper (3) is strapped in its original position through permanent magnet stopping means (42,43), and only after surpassing predeterminable short-circuit current value, just breaks away from and drive said striker (45).
7. the installation switchgear (30) that has magnetic system according to claim 6 is characterized in that, said permanent magnet stopping means (42,43) comprises and is fixed on permanent magnet (42) and the retention tab (43) that said armature keeper (3) is located.
8. the installation switchgear (30) that has magnetic system according to claim 6 is characterized in that, said permanent magnet stopping means (42,43) comprises with fixed-site and mode that be separated with said armature keeper (3) and fixing permanent magnet (42).
9. the installation switchgear (30) that has magnetic system according to claim 7 is characterized in that, said retention tab (43) is with fixed-site and mode that be separated with said armature keeper (42) and fix.
10. the installation switchgear (30) that has magnetic system according to claim 8; It is characterized in that; Said permanent magnet stopping means (42,43) comprises and is fixed on retention tab (43) that said armature keeper (3) locates and with fixed-site and mode that be separated with said armature keeper (3) and fixing permanent magnet (42).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010025117 | 2010-06-25 | ||
| DE102010025117.8 | 2010-06-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202259096U true CN202259096U (en) | 2012-05-30 |
Family
ID=45115827
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205232835U Expired - Lifetime CN202259096U (en) | 2010-06-25 | 2010-08-30 | Magnetic system for circuit protection switch and switch mounting equipment with magnetic system |
| CN2010102775425A Pending CN102299030A (en) | 2010-06-25 | 2010-08-30 | Magnetic system and installing switch device with magnetic system |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102775425A Pending CN102299030A (en) | 2010-06-25 | 2010-08-30 | Magnetic system and installing switch device with magnetic system |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN202259096U (en) |
| DE (1) | DE102010035857B4 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113687132A (en) * | 2021-07-09 | 2021-11-23 | 北京中电飞华通信有限公司 | Electricity utilization monitoring system for machine room |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103367065A (en) * | 2012-04-05 | 2013-10-23 | 厦门赛尔特电子有限公司 | Current-limiting fuse with overcurrent and short circuit protection |
| US9136081B2 (en) * | 2013-12-19 | 2015-09-15 | Eaton Corporation | D/C trip assembly |
| CN104332365B (en) * | 2014-11-17 | 2016-08-17 | 法泰电器（江苏）股份有限公司 | The short delayed releasing mechanism of selective protection formula miniature circuit breaker |
| CN104362053A (en) * | 2014-11-20 | 2015-02-18 | 广西大学 | Magnetic electricity over-load protection device |
| CN106098489B (en) * | 2016-08-09 | 2018-04-13 | 金英花 | A kind of breaker with auto-lock function |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19646243C1 (en) * | 1996-11-08 | 1997-10-23 | Siemens Ag | Electromagnetic difference current circuit-breaker release |
| US5886605A (en) * | 1998-05-07 | 1999-03-23 | Eaton Corporation | Actuator assembly with calibration means and electrical power switch apparatus incorporating the actuator assembly with calibration means |
| DE19842469A1 (en) * | 1998-09-16 | 2000-03-23 | Siemens Ag | Safety cut-out device |
| DE10026813B4 (en) * | 1999-06-24 | 2006-01-19 | Abb Patent Gmbh | Electromagnetic release |
| DE19944026A1 (en) * | 1999-09-14 | 2001-03-15 | Siemens Ag | Tripping device for a residual current device and method for operating a tripping device |
| DE10117340C1 (en) * | 2001-04-06 | 2002-10-10 | Siemens Ag | Electromagnetic trigger relay has blade joint formed on pole face outer edge directly by edge of holding element mounted flat on underside of armature and guide plate on core outer side |
| DE10120573B4 (en) * | 2001-04-26 | 2007-04-26 | Siemens Ag | tripping relay |
| DE10343338B4 (en) * | 2003-09-12 | 2006-02-02 | Siemens Ag | Switching device with short-circuit current release and corresponding method |
| DE102004047738A1 (en) * | 2004-09-30 | 2006-05-04 | Siemens Ag | Trigger relay device for a protective switching device |
| DE102005037437B4 (en) * | 2005-08-09 | 2007-12-27 | Moeller Gmbh | Electric circuit breaker with protective function |
| DE102008021768B4 (en) | 2007-04-30 | 2023-11-16 | Abb Ag | Electromagnetic release, method for producing an electromagnetic release and circuit breaker with an electromagnetic release |
-
2010
- 2010-08-30 CN CN2010205232835U patent/CN202259096U/en not_active Expired - Lifetime
- 2010-08-30 DE DE102010035857.6A patent/DE102010035857B4/en active Active
- 2010-08-30 CN CN2010102775425A patent/CN102299030A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113687132A (en) * | 2021-07-09 | 2021-11-23 | 北京中电飞华通信有限公司 | Electricity utilization monitoring system for machine room |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102010035857A1 (en) | 2011-12-29 |
| DE102010035857B4 (en) | 2017-01-19 |
| CN102299030A (en) | 2011-12-28 |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20120530 |
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| CX01 | Expiry of patent term |