CN102543605A - Electromagnetic tripping mechanism for earth leakage circuit breaker - Google Patents
Electromagnetic tripping mechanism for earth leakage circuit breaker Download PDFInfo
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- CN102543605A CN102543605A CN2011104598275A CN201110459827A CN102543605A CN 102543605 A CN102543605 A CN 102543605A CN 2011104598275 A CN2011104598275 A CN 2011104598275A CN 201110459827 A CN201110459827 A CN 201110459827A CN 102543605 A CN102543605 A CN 102543605A
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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
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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
- H01H71/123—Automatic release mechanisms with or without manual release using a solid-state trip unit
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
- H01H83/02—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents
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Abstract
The present invention discloses an electromagnetic tripping mechanism for an earth leakage circuit breaker, which comprises the following components: a housing; a static core which is equipped in the housing; a movable core which is constructed to be able move to a first position that is used for contacting with the static core in the housing and a second position that is used for separating from the static core; a movable pin which can move together with the movable core; a permanent magnet which is constructed for supplying a magnetic force in a direction for contacting with the static core for the movable core; a tripping coil which is constructed for supplying a magnetic force for weakening the magnetic force of the permanent magnet in magnetization; a tripping lever which is provided with a screw thread open end with a screw thread opening, and a driving part, wherein the driving part receivers a driving force for horizontal movement from the movable pin; a tripping lever spring which is constructed for supplying an elastic driving force to the tripping lever when the magnetic force of the permanent magnet is weakened by the magnetic force generated by magnetization of the tripping coil; and a stress adjusting unit which is constructed for supporting the other end of the tripping rod spring and controlling stress of the tripping rod spring.
Description
Technical field
The disclosure relates to the earth leakage circuit breaker, thereby relates in particular to the electromagnetism tripping mechanism that is used for the earth leakage circuit breaker of interrupt power circuit in the time of can optionally adjusting trip sensitivity and on circuit, earth leakage takes place.
Background technology
Recently; The earth leakage circuit breaker is a kind of like this electric device: generation that it can be through detecting electric leakage such as leakage current and earth fault are come interrupt circuit; Also can carry out the function of general circuit breaker; That is, break off or closed power circuit (hereinafter, will abbreviate circuit as) and can be when having an accident electric current such as overcurrent or short circuit current automatic interrupt circuit.
Correspondingly; The earth leakage circuit breaker not only is provided with general parts such as switching mechanism, tripping mechanism, the arc-extinguishing mechanism of circuit breaker; Also be provided be used to detect earth leakage zero phase sequence currenttransformer (hereinafter; To abbreviate ZCT as) and have the printed circuit board (PCB) (hereinafter, will abbreviate PCB as) of controller.Here; Said controller is constructed to through relatively being judged with pre-determined reference value by the detected detection signal about Zero-phase current (leakage of electric current) of ZCT whether earth leakage take place, and is constructed to export the magnetized trip signal of breaking coil that is used for when the generation earth leakage, making tripping mechanism.
About the operation of earth leakage circuit breaker is that the explanation of the operation of general circuit breaker will be omitted, and only in brief plain telegram stream sew and stop operation.
In case with circuit that the earth leakage circuit breaker is connected on the leakage of current or earth fault take place, ZCT detects Zero-phase current (leakage of electric current), and will indicate the signal of detected leakage of electric current to be transferred to the controller of PCB.Subsequently, more detected leakage of electric current of said controller and pre-determined reference value judge then whether the leakage of current has taken place.If determine the leakage of current takes place, then said controller outputs to trip signal the breaking coil of tripping mechanism.Then, tripping mechanism is according to because the motion of the movable heart that the magnetization of breaking coil produces and according to the linear movement and the extruding of trip(ping) bar is carried out trip operation through switching mechanism is discharged from blocking.
Here, said trip(ping) bar is to move through the stress energy that the promptly preset initial compression of the initial elasticity energy of trip(ping) bar spring is out of shape the trip(ping) bar spring that produces.
In addition, because according to the elasticity variation of the spring of the characteristic error of the parts rigging error of the switching mechanism of each unit of earth leakage circuit breaker, each parts, switching mechanism etc., can not likewise carry out the release of switching mechanism from blocking.This possibly cause handover operation speed to postpone or the handover operation failure.
Yet, being used for the conventional electromagnetism tripping mechanism of earth leakage circuit breaker, the structure (spring support structure) that is used to generate the stress of trip(ping) bar spring is fixed, thereby the stress of trip(ping) bar spring is fixed.This possibly cause the user can't handle the characteristic variations of switching mechanism.
Summary of the invention
Therefore, detailed description scheme provides a kind of like this electromagnetism tripping mechanism that is used for the earth leakage circuit breaker: it can optionally adjust the stress of trip(ping) bar spring.
Another scheme of describing in detail provides a kind of like this electromagnetism tripping mechanism that is used for the earth leakage circuit breaker: when at switching mechanism during the trip operation not by when blocking normally discharges, it can adjust the stress of trip(ping) bar spring like a cork under situation about need not dismantle.
In order to realize these with other advantages and according to the purpose of this specification, such as enforcement and broadly described, a kind of electromagnetism tripping mechanism that is used for the earth leakage circuit breaker is provided, said mechanism comprises:
Housing, it is fixed in the earth leakage circuit breaker;
The static heart, it is installed in the said housing;
The movable heart, it is constructed to move to the primary importance and the second place that is used for separating with the said static heart that is used in the said housing with said static heart contact;
Removable pin, it is attached to the said movable heart, and can move with the said movable heart;
Permanent magnet, it is installed in the said housing, and is constructed to the said movable heart first magnetic force of continuing to use in the direction that contacts with the said static heart is provided;
Breaking coil, it is installed in the said housing, and is constructed to when being magnetized, to be provided for weaken second magnetic force of first magnetic force of said permanent magnet;
Trip(ping) bar; It can the horizontal movement through being attached to said housing; Have the threaded openings end that comprises threaded openings portion and have drive division, said drive division receives towards said removable pin and from said removable pin and is used for horizontal movement or is used for pushing the said movable heart so that the said movable heart moves to the actuating force of the said second place through said removable pin;
The trip(ping) bar spring, the one of which end is supported by the spring support portion of said housing, and is constructed to second magnetic force that first magnetic force at said permanent magnet produced by the magnetization owing to breaking coil when weakening, and to said trip(ping) bar flexible drive power is provided; And
The stress adjustment unit, it is installed on the place, threaded openings end of said trip(ping) bar, and the stress that is constructed to support the other end of said trip(ping) bar spring and controls said trip(ping) bar spring.
Said stress adjustment unit can comprise with the engagement of the threaded openings portion of said threaded openings end and can move with the stress adjusting screw of the compression degree that changes said trip(ping) bar spring.
According to a scheme of the present disclosure, said stress adjusting screw can comprise:
Head, it has the screwdriver connection groove that is used to connect screwdriver;
The threaded portion, its from said head extend and with the engagement of said threaded openings portion;
The insertion section, it extends from said threaded portion and is inserted into the other end of said trip(ping) bar spring; And
Flange part, it is arranged between said insertion section and the said threaded portion, and its external diameter that has is equal to or greater than the external diameter of said trip(ping) bar spring, and is constructed to support the other end of said trip(ping) bar spring.
According to another scheme of the present disclosure, said threaded openings end may further include the arrangement concave part that is installed in the peripheral of said threaded openings portion and is constructed to settle therein said flange part.
According to another scheme of the present disclosure, said housing can be provided with spring support portion and trip(ping) bar guide block on its outer surface.And said trip(ping) bar can be provided with the rail portion of the trip(ping) bar guide block that is attached to said housing, thereby can the horizontal movement through being attached to said housing.
According to another scheme of the present disclosure, the electromagnetism tripping mechanism that is used for the earth leakage circuit breaker may further include and is installed between the said static heart and the said removable pin and is constructed to back-moving spring that said removable pin is resetted.
According to another scheme of the present disclosure, the first magnetic force sum of the elastic force of said back-moving spring and said permanent magnet can be greater than the elastic force of said trip(ping) bar spring.
Through the detailed description that hereinafter provides, the application's the further scope of application will become more obvious.Yet; It should be understood that; Though show preferred embodiment of the present disclosure; But detailed description and instantiation only provide with way of illustration, specify through these, and the various modification within spirit of the present disclosure and scope will become obvious with improving for those skilled in the art.
Description of drawings
Accompanying drawing is involved further to be understood the disclosure to provide, and it combines and form the part of this specification with specification, and accompanying drawing illustrates exemplary embodiment of the present disclosure and is used for explaining principle of the present disclosure with specification.
In the accompanying drawings:
Fig. 1 is the exploded perspective view that shows according to the structure of the electromagnetism tripping mechanism that is used for the earth leakage circuit breaker of preferred embodiment of the present disclosure;
Fig. 2 is the stereogram that shows according to the structure of the trip(ping) bar of the electromagnetism tripping mechanism that is used for the earth leakage circuit breaker of preferred embodiment of the present disclosure and stress adjustment unit;
Fig. 3 is the stereogram that shows according to the confined state of the electromagnetism tripping mechanism that is used for the earth leakage circuit breaker of preferred embodiment of the present disclosure;
Fig. 4 is the cutaway view along the line in the tripping mechanism of Fig. 3 " I-I " intercepting, the mode of operation when showing normal current and on circuit, flowing;
Fig. 5 is along the cutaway view of the line in the tripping mechanism of Fig. 3 " I-I " intercepting, shows tripped condition;
Fig. 6 shows according to the threaded openings end of the trip(ping) bar of the electromagnetism tripping mechanism that is used for the earth leakage circuit breaker of preferred embodiment of the present disclosure and the part amplification view of the coupling configuration between the stress adjusting screw;
The stereogram of Fig. 7 when observing from top according to the electromagnetism tripping mechanism that is used for the earth leakage circuit breaker of preferred embodiment of the present disclosure; And
Fig. 8 shows the stereogram of using according to the outward appearance of the switching mechanism of the earth leakage circuit breaker of the electromagnetism tripping mechanism of preferred embodiment of the present disclosure and one pole breaking units.
Embodiment
Specify above-mentioned purpose of the present disclosure, structure and effect through exemplary embodiment below with reference to accompanying drawings.
Fig. 8 shows the stereogram of using according to the outward appearance of the switching mechanism of the earth leakage circuit breaker of the electromagnetism tripping mechanism of preferred embodiment of the present disclosure and one pole (the S utmost point, in other words S phase) breaking units.In Fig. 8, shell and two the one pole breaking units (R mutually with T one pole breaking units mutually) that wherein hold the earth leakage circuit breaker of three one pole breaking units are omitted.With reference to Fig. 8, electromagnetism tripping mechanism 1000 of the present disclosure is installed in the top of S phase one pole breaking units S and switching mechanism 10.Though it is not shown,, switching mechanism 10 comprises: static contactor, it is electrically connected to the mains side of circuit; Movable contactor, it can move to the open position that is used for the make position that contacts with said static contactor or is used for separating with said static contactor; Axle, it is constructed to support said movable contactor; The tripping operation spring, it is constructed to provide the rotary driving force of said movable contactor; Linkage, it is constructed to the elastic energy of said tripping operation spring is transferred to said axle; Bolt lock mechanism, it is constructed to the said tripping operation spring of locking, so that said tripping operation spring can keep the storing state of elastic energy; And cross bar 300, it is rotated and is expressed to the position that is used to discharge said bolt lock mechanism.
In electromagnetism tripping mechanism 1000, the pressure ram portion 250 with the trip(ping) bar of explaining is installed as towards cross bar 300 below, with 300 while of extruding cross bar along continuous straight runs rectilinear motion.
Referring to figs. 1 through Fig. 7, with the structure of explanation according to the electromagnetism tripping mechanism 1000 that is used for the earth leakage circuit breaker of preferred embodiment of the present disclosure.
As shown in, comprise according to the electromagnetism tripping mechanism 1000 that is used for the earth leakage circuit breaker of preferred embodiment of the present disclosure: housing 100, the static heart 140, the movable heart 130, removable pin 110, permanent magnet 180, breaking coil 150, trip(ping) bar 200, trip(ping) bar spring 230 and stress adjustment unit 240.
As shown in Figure 1; Housing 100 comprises a plurality of trip(ping) bar guide block 100a and spring support portion 170; Said trip(ping) bar guide block 100a is attached to trip(ping) bar 200 on a sidewall of housing 100; And be constructed to support trip(ping) bar 200 so that trip(ping) bar 200 can horizontal movement, and said spring support portion 170 is outstanding forward from the bottom of a said sidewall, and be constructed to support an end of trip(ping) bar spring 230.Spring support portion 170 comprises from the bottom of a said sidewall outstanding forward support base 171 and the supporting walls portion 172 that projects upwards from the front side and the side of support base 171, and said supporting walls portion 172 is constructed to support an end of trip(ping) bar spring 230.
As shown in Figure 1, on the upper surface of housing 100, be installed with connector 190, said connector 190 is constructed to receive and is used to make breaking coil 150 magnetized trip signals.
Like Fig. 4 or shown in Figure 5, in housing 100, the static heart 140 fixed installations are towards the motion heart 130.The static heart 140 heart place therein is provided with through hole, runs through motion therein to allow removable pin 110.
The movable heart 130 is can move to be used in the housing 100 and the primary importance of the static heart 140 contacts and the device of the second place that is used for separating with the static heart 140.
Like Fig. 4 or shown in Figure 5, through being attached to the movable heart 130, removable pin 110 can move with the movable heart 130, and removable pin 110 is constructed to the driving activity heart 130.It is relatively large and support the head 111 of an end of back-moving spring 120 that removable pin 110 has diameter.The other end of removable pin 110 is arranged in the lower end of way of contact extruding tripping operation display pole 160 so that the position of said lower end rotation.
Back-moving spring 120 is to be used to elastic force is provided so that the device that the movable heart 130 and removable pin 110 reset after breaking coil 150 is by degaussing.Like Fig. 4 or shown in Figure 5, back-moving spring 120 is installed between the static heart 140 and the removable pin 110.More specifically, an end of back-moving spring 120 is supported by the head 111 of removable pin 110, and the other end is by the supporting bracket W1 support at the W place, next door that is fixedly mounted on housing 100.One end of the static heart 140 is installed as with supporting bracket W1 and contacts.The other end of back-moving spring 120 can directly be supported by the static heart 140.
The head 111 of removable pin 110 is arranged in towards the extruding of trip(ping) bar 200 and the position of support portion 270.Here, extruding and support portion 270 are constructed to when trip(ping) bar 200 horizontal movements to make with fashion of extrusion head 111 horizontal movements of removable pin 110.
Like Fig. 3 or shown in Figure 4, tripping operation display pole 160 comprises: show board 160a, it is arranged in the top of tripping operation display pole 160; Rotary shaft, it is arranged in the middle part of tripping operation display pole 160 and supports protuberance by one that is arranged in housing 100 lip-deep axle and support; And the lower end drive division, it is constructed to receive the extruding revolving force through the other end of removable pin 110.
On the outer surface of said rotary shaft, the back-moving spring 161 that is constructed to torsionspring is installed.One end of back-moving spring 161 supports protuberance by the spring outstanding from a surface of housing 100 and supports, and the other end of back-moving spring 161 is by the lower end drive division support of tripping operation display pole 160.
Like Fig. 4 or shown in Figure 5, permanent magnet 180 is fixedly mounted in the housing 100, and to the movable heart 130 first magnetic force of continuing to use in the direction that contacts with the static heart 140 is provided.That is to say that first magnetic force that offers the movable heart 130 by permanent magnet 180 is applied in and is used for the direction that contacts with the static heart 140.
Preferably, permanent magnet 180 is constructed to the annular permanent-magnet body around the movable heart 130 installations.
As top said with reference to Fig. 8, trip(ping) bar 200 is the device corresponding to the final output unit of electromagnetism tripping mechanism 1000, and it is constructed to during trip operation, make cross bar 300 rotations with fashion of extrusion.As shown in figures 1 and 3, trip(ping) bar 200 can the horizontal movement through being attached to housing 100.That is to say that as shown in Figure 1, housing 100 is provided with a plurality of trip(ping) bar guide block 100a on its outer surface, and trip(ping) bar 200 is provided with a plurality of rail portion 210a of the trip(ping) bar guide block 100a that is attached to housing 100.This can make trip(ping) bar 200 horizontal movement through being attached to housing 100.
Like Fig. 1, Fig. 2 or shown in Figure 4, trip(ping) bar 200 comprises connection part 210, threaded openings end 220, pressure ram portion 250, retainer 260 and drive division 270.
To extending below, and the 220a of threaded openings portion is horizontally formed in the threaded openings end 220 from an end of the connection part 210 of trip(ping) bar 200 in threaded openings end 220.
Trip(ping) bar spring 230 is constructed to disc spring, and the one of which end is supported by the spring support portion 170 of housing 100, and the other end is supported by stress adjustment unit 240.If breaking coil 150 is magnetized through the trip signal from connector 190 during trip operation, second magnetic force that is then provided by breaking coil 150 weakens first magnetic force of permanent magnet 180.In this case, trip(ping) bar spring 230 is stretched to trip(ping) bar 200 flexible drive power to be provided through stress adjustment unit 240 and threaded openings end 220.
According to preferred embodiment of the present disclosure, the elastic force of trip(ping) bar spring 230 is configured to the elastic force greater than back-moving spring 120, but less than the elastic force of back-moving spring 120 and the first magnetic force sum of permanent magnet 180.
That is F1＜F2+F3-----------→ formula (1),
In formula (1), F1 representes the elastic force of trip(ping) bar spring 230, and F2 representes the elastic force of back-moving spring 120, and F3 representes first magnetic force of permanent magnet 180.
According to preferred embodiment of the present disclosure, to shown in Figure 3, stress adjustment unit 240 comprises with the 220a of the threaded openings portion engagement of threaded openings end 220 and can move with the stress adjusting screw of the compression degree that changes trip(ping) bar spring 230 like Fig. 1.
Like Fig. 2 or shown in Figure 6, the stress adjustment unit 240 of constructing through stress adjusting screw can comprise head 240d, threaded portion 240c, insertion section 240a and flange part 240b.
The head 240d of stress adjustment unit 240 is the interface portion that are used to adjust stress, and has the screwdriver link slot 240d-1 that is used to connect the screwdriver (not shown).Be installed at stress adjustment unit 240 under the state at 220 places, threaded openings end of trip(ping) bar 200; In case the user is connected to screwdriver screwdriver link slot 240d-1 and is rotated in a clockwise direction screwdriver, then stress adjustment unit 240 travels forward significantly to compress trip(ping) bar spring 230.As a result, trip(ping) bar spring 230 has bigger stress, promptly stores more elastic energy.On the other hand, in case screwdriver is connected to screwdriver link slot 240d-1 to the user and along counter clockwise direction rotary screw cutter, then stress adjustment unit 240 moves with small size compression trip(ping) bar spring 230 backward.As a result, trip(ping) bar spring 230 has less stress, promptly stores less elastic energy.
The threaded portion 240c of stress adjustment unit 240 240d from the head extends, and with the 220a of threaded openings portion of threaded openings end 220 engagement.
240c extends insertion section 240a from the threaded portion, and is inserted in the other end of trip(ping) bar spring 230.
As improved embodiment, the external diameter that the recess 240a-1 of insertion section 240a can be constructed to have is greater than the external diameter of trip(ping) bar spring 230.This can allow the other end of trip(ping) bar spring 230 to be accommodated among the recess 240a-1.
As shown in Figure 6, threaded openings end 220 may further include the arrangement concave part 220b that is installed in the peripheral of the 220a of threaded openings portion and is constructed to settle therein flange part 240b.
See figures.1.and.2, Reference numeral 211 expressions are used for holding therein the space of trip(ping) bar spring 230.
With reference to Fig. 4, arrow is illustrated in breaking coil 150 by the direction of motion of trip(ping) bar after the degaussing 200.In this case, the first magnetic force sum of the elastic force of back-moving spring 120 and permanent magnet 180 is greater than the elastic force of trip(ping) bar spring 230.Correspondingly, the movable heart 130 is towards the second direction motion that is used for contacting with the static heart 140, and removable pin 110 also moves to promote drive division 270 towards second direction.Along with drive division 270 is pushed, trip(ping) bar 200 motions.
With reference to Fig. 5, after breaking coil 150 had been magnetized, first magnetic force of permanent magnet 180 was weakened by second magnetic force of breaking coil 150, and the elastic force of back-moving spring 120 is less than the elastic force of trip(ping) bar spring 230.Correspondingly, drive division 270 promotes removable pin 110, thereby the movable heart 130 is towards the first direction motion that is used for separating with the static heart 140.In Fig. 5, arrow is represented the direction of motion of removable pin 110.
To specify according to the operation that is used for the electromagnetism tripping mechanism of earth leakage circuit breaker of the present disclosure with reference to Fig. 4, Fig. 5 and Fig. 8.
If the leakage of current does not take place, comprise that then the controller (not shown) of zero phase sequence currenttransformer (ZCT) can not exported trip signal to connector 190 on the circuit that is connected with the earth leakage circuit breaker.As a result, the breaking coil 150 that does not receive trip signal from connector 190 is by degaussing.Because the elastic force of back-moving spring 120 and the first magnetic force sum of permanent magnet 180 are greater than the elastic force of trip(ping) bar spring 230, therefore, the movable heart 130 is towards the second direction motion that is used for contacting with the static heart 140.As a result, removable pin 110 also moves to promote drive division 270 towards second direction.Along with drive division 270 is pushed, trip(ping) bar 200 travels forward.Correspondingly, in Fig. 8, the pressure ram portion 250 of trip(ping) bar 200 is arranged in and is used for the position of separating with cross bar 300.With reference to Fig. 8, switching mechanism 10 keeps blocking, and does not carry out trip operation.
On the other hand, if the leakage of current has taken place, comprise that then the controller (not shown) of ZCT detects the leakage of current on the circuit of earth leakage circuit breaker, to export trip signal to connector 190.As a result, breaking coil 150 is magnetized through the trip signal from connector 190 outputs.First magnetic force of permanent magnet 180 is weakened by second magnetic force of breaking coil 150.Because the elastic force of back-moving spring 120 is less than the elastic force of trip(ping) bar spring 230, therefore, drive division 270 promotes removable pin 110 through the elastic force of trip(ping) bar spring 230, and the movable heart 130 is towards the first direction motion that is used for separating with the static heart 140.As a result, trip(ping) bar 200 moves backward.Correspondingly, in Fig. 8, the pressure ram portion 250 of trip(ping) bar 200 makes cross bar 300 rotations with fashion of extrusion.With reference to Fig. 8, through the rotation of cross bar 300, switching mechanism 10 is discharged from blocking and the execution trip operation.This can allow interrupt circuit, and can protective circuit and the load device that is connected to circuit avoid the leakage of current and damage.
The lower end that removable pin 110 promotes tripping operation display pole 160.As a result, the demonstration board 160a on top that is arranged in tripping operation display pole 160 shows the trip operation state under situation about being rotated in a clockwise direction.
Be installed at stress adjustment unit 240 under the state at 220 places, threaded openings end of trip(ping) bar 200; In case the user is connected to screwdriver screwdriver link slot 240d-1 and is rotated in a clockwise direction screwdriver, then stress adjustment unit 240 travels forward significantly to compress trip(ping) bar spring 230.As a result, trip(ping) bar spring 230 has bigger stress, promptly stores more elastic energy.If trip(ping) bar spring 230 has bigger stress, promptly store more elastic energy, then trip(ping) bar 200 horizontal movement quickly, and the pressure ram portion 250 of trip(ping) bar 200 is with bigger power and fast speeds extruding cross bar 300.
In case screwdriver is connected to screwdriver link slot 240d-1 to the user and along counter clockwise direction rotary screw cutter, then stress adjustment unit 240 moves with small size compression trip(ping) bar spring 230 backward.As a result, trip(ping) bar spring 230 has less stress, promptly stores less elastic energy.If trip(ping) bar spring 230 has less stress, promptly store less elastic energy, then trip(ping) bar 200 horizontal movement more slowly, and the pressure ram portion 250 of trip(ping) bar 200 is with less power and slower speed extruding cross bar 300.
When the leakage of current took place, along with the earth leakage circuit breaker repeats trip operation, the power and the speed of the pressure ram portion 250 extruding cross bars 300 of trip(ping) bar 200 can change.Yet,,, can adjust the stress of trip(ping) bar spring 230 through adjustment stress adjustment unit 240 according to the electromagnetism tripping mechanism that is used for the earth leakage circuit breaker of the present disclosure.As a result, can adjust the power and the speed of the pressure ram portion 250 extruding cross bars 300 of trip(ping) bar 200 like a cork.
In addition, according to the electromagnetism tripping mechanism that is used for the earth leakage circuit breaker of the present disclosure, switching mechanism 10 can not carried out normal trip operation, because the power of the pressure ram portion of trip(ping) bar 200 250 extruding cross bars 300 is less than predetermined value.In this case, only through the stress of adjustment trip(ping) bar spring 230, promptly can adjust the power of the pressure ram portion 250 extruding cross bars 300 of trip(ping) bar 200, and need not to change tripping mechanism.
The foregoing description and advantage are merely exemplary, and are not interpreted as restriction of the present disclosure.This instruction can easily be applied on the device of other types.This specification aims to provide exemplary illustration, and does not limit the scope of claim.Many optional modes, improvement and modification all will be conspicuous for a person skilled in the art.Characteristic, structure, method and other characteristics in these exemplary embodiments of this explanation can make up in various manners, to obtain other and/or alternate exemplary embodiment.
Because characteristic of the present invention can be presented as various ways under the situation that does not depart from its characteristic; So be to be understood that; The foregoing description is not limited by any details of aforementioned specification; Unless otherwise indicated, explain, therefore fall into scope or all changes in the equivalency range and the improvement of claims thereby should be included in the appending claims but should in the appending claims restricted portion, do broadly.
Claims (7)
1. electromagnetism tripping mechanism that is used for the earth leakage circuit breaker is characterized in that said mechanism comprises:
Housing, it is fixed in the said earth leakage circuit breaker;
The static heart, it is installed in the said housing;
The movable heart, it is constructed to move to the primary importance and the second place that is used for separating with the said static heart that is used in the said housing with said static heart contact;
Removable pin, it is attached to the said movable heart, and can move with the said movable heart;
Permanent magnet, it is installed in the said housing, and is constructed to the said movable heart first magnetic force of continuing to use in the direction that contacts with the said static heart is provided;
Breaking coil, it is installed in the said housing, and is constructed to when being magnetized, to be provided for weaken second magnetic force of first magnetic force of said permanent magnet;
Trip(ping) bar; It can the horizontal movement through being attached to said housing; Have the threaded openings end that comprises threaded openings portion and have drive division, said drive division receives towards said removable pin and from said removable pin and is used for horizontal movement or is used for pushing the said movable heart so that the said movable heart moves to the actuating force of the said second place through said removable pin;
The trip(ping) bar spring, the one of which end is supported by the spring support portion of said housing, and is constructed to second magnetic force that first magnetic force at said permanent magnet produced by the magnetization owing to breaking coil when weakening, and to said trip(ping) bar flexible drive power is provided; And
The stress adjustment unit, it is installed on the place, threaded openings end of said trip(ping) bar, and the stress that is constructed to support the other end of said trip(ping) bar spring and adjusts said trip(ping) bar spring.
2. electromagnetism tripping mechanism according to claim 1, wherein, said stress adjustment unit comprises with the engagement of the threaded openings portion of said threaded openings end and can move with the stress adjusting screw of the compression degree that changes said trip(ping) bar spring.
3. electromagnetism tripping mechanism according to claim 2, wherein, said stress adjusting screw comprises:
Head, it has the screwdriver connection groove that is used to connect screwdriver;
The threaded portion, its from said head extend and with the engagement of said threaded openings portion;
The insertion section, it extends from said threaded portion and is inserted into the other end of said trip(ping) bar spring; And
Flange part, it is arranged between said insertion section and the said threaded portion, and its external diameter that has is equal to or greater than the external diameter of said trip(ping) bar spring, and is constructed to support the other end of said trip(ping) bar spring.
4. electromagnetism tripping mechanism according to claim 3, wherein, said threaded openings end further comprises the arrangement concave part that is installed in the peripheral of said threaded openings portion and is constructed to settle therein said flange part.
5. electromagnetism tripping mechanism according to claim 1, wherein, said housing has spring support portion and trip(ping) bar guide block on its outer surface, and
Wherein, said trip(ping) bar has the rail portion of the trip(ping) bar guide block that is attached to said housing, thereby can the horizontal movement through being attached to said housing.
6. electromagnetism tripping mechanism according to claim 1 further comprises being installed between the said static heart and the removable pin and being constructed to make said removable pin to return the back-moving spring of initial position.
7. electromagnetism tripping mechanism according to claim 6, wherein, the first magnetic force sum of the elastic force of said back-moving spring and said permanent magnet is greater than the elastic force of said trip(ping) bar spring.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020100140691A KR101668023B1 (en) | 2010-12-31 | 2010-12-31 | Trip lever apparatus for earth leakage circuit breaker |
| KR10-2010-0140691 | 2010-12-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102543605A true CN102543605A (en) | 2012-07-04 |
| CN102543605B CN102543605B (en) | 2014-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110459827.5A Active CN102543605B (en) | 2010-12-31 | 2011-12-31 | Electromagnetic tripping mechanism for earth leakage circuit breaker |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR101668023B1 (en) |
| CN (1) | CN102543605B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR200487819Y1 (en) | 2015-03-31 | 2018-11-07 | 현대일렉트릭앤에너지시스템(주) | Cap for slide switch having trip coil unit of leakage indicator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005166429A (en) * | 2003-12-02 | 2005-06-23 | Fuji Electric Fa Components & Systems Co Ltd | Release type electromagnetic solenoid |
| KR20090045787A (en) * | 2007-11-02 | 2009-05-08 | 엘에스산전 주식회사 | Circuit breaker |
| CN101719439A (en) * | 2009-11-19 | 2010-06-02 | 天津市百利电气有限公司 | Adjustable standby tripper of circuit breaker |
| CN101894713A (en) * | 2009-05-21 | 2010-11-24 | 上海良信电器股份有限公司 | Movement mechanism of magnetic loop in hydraulic electromagnetic type breaker |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004146285A (en) * | 2002-10-28 | 2004-05-20 | Matsushita Electric Works Ltd | Contact point-less push-button switch |
| KR100909424B1 (en) * | 2007-08-08 | 2009-07-24 | 엘에스산전 주식회사 | Permanent Magnet Actuator and Circuit Breaker Equipped with the Same |
-
2010
- 2010-12-31 KR KR1020100140691A patent/KR101668023B1/en active IP Right Grant
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2011
- 2011-12-31 CN CN201110459827.5A patent/CN102543605B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005166429A (en) * | 2003-12-02 | 2005-06-23 | Fuji Electric Fa Components & Systems Co Ltd | Release type electromagnetic solenoid |
| KR20090045787A (en) * | 2007-11-02 | 2009-05-08 | 엘에스산전 주식회사 | Circuit breaker |
| CN101894713A (en) * | 2009-05-21 | 2010-11-24 | 上海良信电器股份有限公司 | Movement mechanism of magnetic loop in hydraulic electromagnetic type breaker |
| CN101719439A (en) * | 2009-11-19 | 2010-06-02 | 天津市百利电气有限公司 | Adjustable standby tripper of circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101668023B1 (en) | 2016-10-21 |
| CN102543605B (en) | 2014-09-17 |
| KR20120078405A (en) | 2012-07-10 |
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