CN101656180B - Electromagnetic short circuit protection breaker - Google Patents
Electromagnetic short circuit protection breaker Download PDFInfo
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- CN101656180B CN101656180B CN2008100488486A CN200810048848A CN101656180B CN 101656180 B CN101656180 B CN 101656180B CN 2008100488486 A CN2008100488486 A CN 2008100488486A CN 200810048848 A CN200810048848 A CN 200810048848A CN 101656180 B CN101656180 B CN 101656180B
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Abstract
The invention provides an electromagnetic short circuit protection breaker, including: a breaker body, which includes a housing; a handle for realizing on-off operation is arranged outside the housing; a linkage mechanism is connected onto an end of the handle, separation and contact of the movable and static contact of the movable and static contact slices are realized by using the linkage mechanism; also including: a short circuit detection unit for short circuit fault detection, and generating a trigger signal at time of short circuit generation; an electromagnetic action mechanism for receiving the trigger signal, and separating the movable and static contacts by pushing the linkage mechanism with the electromagnetic action.
Description
Technical field
What the present invention relates to is a kind of circuit breaker, particularly be a kind of circuit breaker of realizing short-circuit protection through electromagnetism action.
Background technology
Switch switchgear for power department is to guarantee Electrical Safety, carry out circuit and switch imperative equipment, sees also shown in Figure 1ly, and it is the internal structure sketch map of existing circuit breaker; It comprises: a box body 001, and adopt the insulation fire proofing to make, portion is provided with following structure within it:
An one phase line incoming end 032 and a line output terminal 037 mutually are in order to be linked in the power line; One actuating mechanism, it comprises: one handle 021, it has an operating side and is arranged at outside the described box body 001, carries out the break-make control of circuit; One movable contact spring 024, its end have a moving contact 025; One link gear 022; It is made up of a plurality of gangbar; Hinge through being arranged in the said box body 001 rotates, and an end of its gangbar that goes up most 0221 is connected with described handle 021, and the end of bottom STATEMENT OF FEDERALLY SPONSORED 0222 is connected with the front end of described movable contact spring 023; One fixed contact 031; It is connected with described phase line input 032, when the described link gear 022 of turn handle 021 pulling, thereby causes seesawing of movable contact spring 024; The contact that realizes moving contact 025 and fixed contact 031 with separate, finally reach the purpose of power circuit break-make.It also comprises: an arc-extinguishing mechanism and an overcurrent protection mechanism; Described arc-extinguishing mechanism is in order to eliminate the destruction of electric arc to circuit breaker; It comprises that a metal is when an arc plate 034 and an arc-extinguish chamber 035; Described metal arc extinguishing board 033 is connected with described fixed contact 031 and extends to described box body 001 bottom, and described arc-extinguish chamber 035 is corresponding with described fixed contact 031.Described overcurrent protection mechanism is a magnetictrip 051, is arranged at described actuating mechanism bottom, and the one of which end is connected with described movable contact spring upper end 023; Its other end is connected with an end of a poke rod 052; The other end of described poke rod 052 leans with a gangbar of described link gear 022 and is connected, when overload appears in power line, and described magnetictrip 051 action; Thereby the described poke rod 052 of pushing tow; And then the gangbar of described link gear 022 is moved, and force described dynamic and static contact separately, load and power line are broken off.
But Along with people's improves constantly electric power safety and control requirement, and existing circuit breaker has been difficult to reach this requirement, still has following defective through analyzing it:
When short circuit accident takes place, can bring very strong electric current, though overcurrent protection this moment mechanism, can be with circuitry cuts; But under the situation that does not have to remove at short circuit accident, action does not have indication because circuit breaker opens circuit, so cause unclear circuit breaker action or the short circuit reason that is overload causes of user to cause circuit to break off; So can close some electrical appliances usually, expectation reduces the use of electrical appliance, reaches the purpose that reduces electric current; When the user once more through rotary handle, the dynamic and static contact junction of circuit breaker is lumped together, circuit is connected; Moment produces big electric current, may bring danger to the user, causes damage to power consumption equipment.
In view of above-mentioned defective, creator of the present invention is through research and test for a long time, and the intention design realizes a kind of circuit breaker with special-purpose short-circuit protection function, and after producing defencive function, can carry out self-locking.
Summary of the invention
The objective of the invention is to, a kind of electromagnetic short circuit protection breaker is provided, in order to overcome above-mentioned defective.
For realizing above-mentioned purpose, the technical scheme that the present invention adopts is that a kind of electromagnetic short circuit protection breaker is provided, and it comprises: a breaker body, and it comprises: a housing; Described housing is outside equipped with one in order to realize the handle of make-break operation; One end of said handle is connected with a link gear, the separation that realizes dynamic and static contact on the dynamic and static contact through link gear with contact; Also comprise:
One short-circuit detecting subelement detects in order to carry out short trouble, and when short circuit takes place, produces a triggering signal;
One electromagnetism actuating mechanism, it receives described triggering signal, through the described link gear action of electromagnetism action pushing tow, makes the separation of described dynamic and static contact.
Wherein, be a tongue tube for described short-circuit detecting subelement execution mode one, an end of described tongue tube is connected with phase line or zero line.
Described short-circuit detecting subelement execution mode two should comprise:
One power circuit after it obtains the signal of telecommunication from phase line and zero line, and is processed into a burning voltage;
One testing circuit changes in order to the electric current that detects on the phase line, produces one first detection signal;
One comparison circuit, it has the first input end that obtains a reference voltage and obtains described first detection signal, second input, and when short circuit takes place, exports a control signal.
Wherein, comprise for described electromagnetism actuating mechanism execution mode one:
One electromagnet, its solenoid that has is connected serially between described tongue tube and the phase line, or is connected serially between described tongue tube and the zero line;
One trigger arm that opens circuit; Its lower end is connected with described electromagnet armature; The upper end of the said trigger arm that opens circuit is a reset terminal; It extends in said case top one pilot hole, and the described trigger arm that opens circuit is moved along described pilot hole when action, and the described trigger arm that opens circuit also has a protuberance;
One poke rod; The one of which end overlaps with a gangbar of described link gear mutually; The protuberance of the other end of said poke rod and the described trigger arm that opens circuit offsets, and the protuberance of the said trigger arm that opens circuit pushes described poke rod when described armature motion, and described poke rod is rotated; Make described link gear action force the separation of described dynamic and static contact, the described trigger arm reset terminal that opens circuit stretches out housing.
Comprise for described electromagnetism actuating mechanism execution mode two:
One electromagnet, its solenoid that has one end is connected with described power circuit output end, and the other end is connected with the emitter of a triode, and described transistor base is connected with the output of described comparison circuit;
One trigger arm that opens circuit; Its lower end is connected with described electromagnet armature; The upper end of the said trigger arm that opens circuit is a reset terminal; Extend in said case top one pilot hole, the described trigger arm that opens circuit is moved along described pilot hole when action, the described trigger arm that opens circuit also has a protuberance;
One poke rod; The one of which end overlaps with a gangbar of described link gear mutually; The protuberance of the other end of said poke rod and the described trigger arm that opens circuit offsets, and the protuberance of the said trigger arm that opens circuit pushes described poke rod when described armature motion, and described poke rod is rotated; Make described link gear action force the separation of described dynamic and static contact, the described trigger arm reset terminal that opens circuit stretches out housing.
Wherein, described testing circuit is a tongue tube, and an end of described tongue tube is connected with described power circuit output end, and the other end of described tongue tube is connected with described comparison circuit second input.
Described testing circuit comprises: one is arranged on the instrument transformer on the phase line segment, parallelly connected with it a filter capacitor and a rectifier diode, and described rectification after-current is first detection signal.
Preferable, in order to realize adjusting the threshold value of electromagnet action, also comprise: a variable resistance setting links to each other with the described first input end that obtains burning voltage, in order to adjust the fiducial value of the triggering signal that described comparator exports.
Be with prior art beneficial effect more of the present invention; Not only realized the electricity protection when short trouble takes place, realized simultaneously having increased fail safe by auto-lock function; Reliability is high, and to having played indicative function because the circuit breaker that short trouble causes opens circuit to move.
Description of drawings
Fig. 1 is the internal structure sketch map of the circuit breaker of prior art;
Fig. 2 A is the electromagnetic short circuit protection breaker embodiment one of the present invention internal structure sketch map during failed because not;
Fig. 2 B is the internal structure sketch map of electromagnetic short circuit protection breaker embodiment one of the present invention when failed because;
Fig. 2 C is the electromagnetic short circuit protection breaker embodiment one of the present invention internal structure schematic perspective view during failed because not;
Fig. 2 D is the internal structure decomposing schematic representation of electromagnetic short circuit protection breaker embodiment one of the present invention;
Fig. 2 E is the electrical block diagram one of electromagnetic short circuit protection breaker embodiment one of the present invention;
Fig. 2 F is the electrical block diagram two of electromagnetic short circuit protection breaker embodiment one of the present invention;
Fig. 3 A is the electromagnetic short circuit protection breaker embodiment one of the present invention internal structure sketch map during failed because not;
Fig. 3 B is the internal structure sketch map of electromagnetic short circuit protection breaker embodiment two of the present invention when failed because;
Fig. 3 C is the electromagnetic short circuit protection breaker embodiment two of the present invention internal structure schematic perspective view during failed because not;
Fig. 3 D is the internal structure decomposing schematic representation of electromagnetic short circuit protection breaker embodiment two of the present invention;
Fig. 3 E is the electrical block diagram of electromagnetic short circuit protection breaker embodiment two of the present invention.
Embodiment
Below in conjunction with accompanying drawing, do more detailed explanation with other technical characterictic and advantage to the present invention is above-mentioned.
See also shown in Fig. 2 A, Fig. 2 C and Fig. 2 D, it is respectively internal structure sketch map, stereogram and of the present invention electromagnetic short circuit protection breaker embodiment one three-dimensional structural representation that decompose of electromagnetic short circuit protection breaker embodiment one of the present invention under normal condition; Described electromagnetic short circuit protection breaker comprises: a breaker body, in order to realize the basic function of present circuit breaker, in order to realize short-circuit protection function of the present invention; Its concrete embodiment that adopts is following: it is provided with a short-circuit detecting subelement and an electromagnetism actuating mechanism; Wherein, described short-circuit detecting subelement is in order to carry out the detection of short trouble, and it comprises: a tongue tube 24; It is positioned at the top of the phase line segment 18 of described breaker body; But short trouble when taking place owing to produce powerful magnetic field, thereby makes the described tongue tube 24 inner contact adhesives that separate.Described electromagnetism actuating mechanism; It comprises: an electromagnet 21; The armature end of described electromagnet 21 is provided with the trigger arm 22 that opens circuit, and described trigger arm 22 lower ends of opening circuit are connected with the armature of described electromagnet 21, and the upper end of the said trigger arm 22 that opens circuit is a reset terminal; It extends in said case top one pilot hole 111; After described electromagnet 21 is triggered, thereby described armature moves upward and drives the described trigger arm 22 of opening circuit and move along described pilot hole 111, and the described trigger arm 22 that opens circuit also has a protuberance 221; Also comprise a poke rod 23, its stage casing is connected with the hinge that is arranged on described inner walls 112, and described poke rod 23 is provided with one first butting section, and it overlaps with a gangbar 121 of described link gear mutually; Be provided with that protuberance 221 leans on one second butting section itself and the described trigger arm that opens circuit; Described poke rod 23 also is provided with one the 3rd butting section, offsets in order to the armature with overcurrent protection mechanism 14, and described overcurrent protection mechanism 14 is positioned at the top of arc-extinguishing mechanism 17; When generation is overladen; Described the 3rd butting section of armature pushing tow of described overcurrent protection mechanism 14; Make described poke rod 23 rotations, thereby a gangbar 121 of described link gear is separated with described first butting section, thereby make the link gear action; Finally force dynamic and static contact 151,161 separation on the described dynamic and static contact 15,16, the open circuit protection when realizing overload; But poke rod 23 can reset owing to elastic reaction automatically after this overcurrent protection; Not that is to say and need reset; Only be rotation, just can make through link gear that dynamic and static contact 151,161 combines on the described dynamic and static contact 15,16 through handle 13.
See also shown in Fig. 2 B, it is the internal structure sketch map of electromagnetic short circuit protection breaker embodiment one of the present invention when failed because; For structure of the present invention, in case the accident of being short-circuited can produce high-intensity magnetic field on described circuit-line; The contact adhesive of the tongue tube 24 of described short-circuit detecting subelement at this moment, thus a triggering signal (the triggering signal mechanism of its generation will be described in the circuit structure below) produced; Thereby produce the electromagnetism action after making electromagnet 21 in the described electromagnetism actuating mechanism receive signal, described armature is moved upward, thereby the described trigger arm 22 that opens circuit is moved upward; Described reset terminal stretches out described guide hole 111, thereby plays indicative function, shows that promptly present state is opening circuit of causing of short trouble; And because described second butting section of protuberance 221 pushing tows, and then described poke rod 23 is rotated around hinge 112, thus make the link gear action; Finally force dynamic and static contact 151,161 separation on the described dynamic and static contact 15,16; Even circuit is cut off, the high-intensity magnetic field that short circuit produces has disappeared, but the described trigger arm 21 that opens circuit is because leaning of spring and leaning of a recess 231 of second butting section of said protuberance 221 and said poke rod 22; The trigger arm 21 that opens circuit can not be resetted automatically; Thereby the present invention has not only realized the protection of short circuit, simultaneously because structure ingenious formed the self-locking after the short circuit, has only the user to reset and can realize rotary handle 13 once more; Make that dynamic and static contact 151,161 combines on the described dynamic and static contact 15,16, finally improved fail safe.
See also the electrical block diagram one of Fig. 2 E for electromagnetic short circuit protection breaker embodiment one of the present invention; The end of described tongue tube S is connected with phase line Lin (zero line Nin); Its other end is connected with the input of described magnet spool XQ; The output of described magnet spool XQ is connected with described zero line Nin (phase line Lin), thereby forms a loop, when short trouble does not take place; The contact of described tongue tube S does not have adhesive, thereby opens a way in described loop; When short trouble took place, the contact that produces high-intensity magnetic field and then make described tongue tube S was by adhesive, thus circuit closed; Thereby there is triggering signal (signal of telecommunication) to be transferred to magnet spool XQ; The electromagnet action, promptly described armature moves upward, thereby the described trigger arm 22 that opens circuit is moved upward; Described reset terminal stretches out described guide hole 111, accomplishes opening circuit and the self-locking process of foregoing description.
See also Fig. 2 F has electromagnetic short circuit protection breaker embodiment one for the present invention electrical block diagram two; The difference of itself and foregoing circuit structural representation one mainly is the tighter electronization that realized of structure, and this moment, described short-circuit detecting subelement comprised:
One power circuit is exported in order to form a stable voltage, the influence of not opened circuit, and it comprises: rectifier bridge D1-D4, divider resistance R1, R2, R3, capacitor C 1, power management chip IC1;
One comparison circuit; It comprises: divider resistance R4, R5, variable resistor W and comparator IC2; Wherein, the end of oppisite phase of described comparator IC2 be connected in order to the described variable resistor W that reference voltage is provided, described power circuit provides operating voltage for it;
One testing circuit is made up of described tongue tube NS, and it is connected with described power circuit output end, and the other end is connected with described comparator IC2 in-phase end;
One controlling output circuit comprises: capacitor C 3, resistance R 6, triode Q, diode D5; Certainly the output of control circuit is to described magnet spool XQ.When the circuit failed because, around conductor, can produce powerful magnetic field, the contact of described tongue tube NS is by the magnetic field adhesive; Thereby make line conduction, described electric current is input to the in-phase input end of comparison circuit comparator IC2 through tongue tube NS, and with the reference voltage of comparison circuit comparator IC2 inverting input relatively; Thereby the output high potential, and then input to described triode Q base stage, drive triode Q conducting; So there is triggering signal (signal of telecommunication) to be transferred to magnet spool XQ, make the electromagnet action, promptly described armature moves upward; Thereby the described trigger arm 22 that opens circuit is moved upward, and described reset terminal stretches out described guide hole 111, accomplishes the process that opens circuit of foregoing description; Owing to described variohm W be set link to each other with the described first input end that obtains burning voltage, carry out dividing potential drop, with the voltage after partial value as reference voltage; So can pass through the resistance of the described variohm W of adjustment, and then adjustment makes the threshold value of the triggering signal of comparator IC2 output.
Above-mentioned is the technical scheme of electromagnetic short circuit protection breaker embodiment one of the present invention; In order further to support inventive point of the present invention; Can the technical scheme of embodiment two will be described below according to the concrete open product of the present invention of further realizing of the present invention in the hope of the ability technical staff.
See also shown in Fig. 3 A, Fig. 3 C and Fig. 3 D, it is respectively internal structure sketch map, stereogram and of the present invention electromagnetic short circuit protection breaker embodiment one three-dimensional structural representation that decompose of electromagnetic short circuit protection breaker embodiment two of the present invention under normal condition; Described electromagnetic short circuit protection breaker comprises: a breaker body, in order to realize the basic function of present circuit breaker, in order to realize short-circuit protection function of the present invention; Its concrete embodiment that adopts is following: it is provided with a short-circuit detecting subelement and an electromagnetism actuating mechanism; Wherein, described short-circuit detecting subelement is in order to carry out short-circuit detecting, and it comprises: an instrument transformer 25; It is set on the phase line segment 18 of described breaker body; When short trouble takes place, electric current moment increase, instrument transformer 25 will induce a voltage signal.Described electromagnetism actuating mechanism; It comprises: an electromagnet 21; The armature end of described electromagnet 21 is provided with the trigger arm 22 that opens circuit, and described trigger arm 22 lower ends of opening circuit are connected with the armature of described electromagnet 21, and the upper end of the said trigger arm 22 that opens circuit is a reset terminal; It extends in said case top one pilot hole 111; After described electromagnet 21 is triggered, thereby described armature moves upward and drives the described trigger arm 22 of opening circuit and move along described pilot hole 111, and the described trigger arm 22 that opens circuit also has a protuberance 221; Also comprise a poke rod 23, its stage casing is connected with the hinge that is arranged on described inner walls 112, and described poke rod 23 is provided with one first butting section, and it overlaps with a gangbar 121 of described link gear mutually; Be provided with that protuberance 221 leans on one second butting section itself and the described trigger arm that opens circuit; Described poke rod 23 also is provided with one the 3rd butting section, offsets in order to the armature with overcurrent protection mechanism 14, and described overcurrent protection mechanism 14 is positioned at the top of arc-extinguishing mechanism 17; When generation is overladen; Described the 3rd butting section of armature pushing tow of described overcurrent protection mechanism 14; Make described poke rod 23 rotations, thereby a gangbar 121 of described link gear is separated with described first butting section, thereby make the link gear action; Finally force dynamic and static contact 151,161 separation on the described dynamic and static contact 15,16, the open circuit protection when realizing overload; But poke rod 23 can reset owing to elastic reaction automatically behind this overload protection; Not that is to say and need reset; Only be rotation, just can make through link gear that dynamic and static contact 151,161 combines on the described dynamic and static contact 15,16 through handle 13.
See also shown in Fig. 3 B, it is the internal structure sketch map of electromagnetic short circuit protection breaker embodiment two of the present invention when failed because; For present embodiment two, in case the accident of being short-circuited can produce induced voltage on the coil of described instrument transformer 25; Thereby produce a triggering signal, thereby produce action after making electromagnet 21 in the described electromagnetism actuating mechanism receive signal, described armature is moved upward; Thereby the described trigger arm 22 that opens circuit is moved upward, and described reset terminal stretches out described guide hole 111, thereby plays indicative function; Show that promptly present state is opening circuit of causing of short trouble, and because described second butting section of protuberance 221 pushing tows, and then described poke rod 23 is rotated around hinge 112; Thereby make the link gear action, finally force dynamic and static contact 151,161 separation on the described dynamic and static contact 15,16, even circuit is cut off; The high-intensity magnetic field that short circuit produces has disappeared; But the described trigger arm 21 of opening circuit is because leaning of spring and leaning of a recess 231 of second butting section of said protuberance 221 and said poke rod 22 trigger arm 21 that opens circuit can not be resetted automatically, thereby the present invention have not only realized the protection of short circuit; Simultaneously because structure ingenious formed the self-locking after the short circuit; Have only the user to reset and to realize rotary handle 13 once more, make that dynamic and static contact 151.161 combines on the described dynamic and static contact 15,16, finally improved fail safe.
See also shown in Fig. 3 E, it is the electrical block diagram one of electromagnetic short circuit protection breaker embodiment two of the present invention; It comprises: the short-circuit detecting subelement and in order to send open circuit the action the electromagnetism actuating mechanism in electromagnet, wherein said short-circuit detecting subelement comprises:
One power circuit is exported in order to form a stable voltage, the influence of not opened circuit, and it comprises: rectifier bridge D1-D4, divider resistance R1, R2, R3, capacitor C 1, power management chip IC1;
One comparison circuit; It comprises: divider resistance R4, R5, variable resistor W and comparator IC2; Wherein, the end of oppisite phase of described comparator IC2 be connected in order to the described variable resistor W that reference voltage is provided, described power circuit provides operating voltage for it;
One testing circuit, by the described instrument transformer TA that is set on the phase line segment, capacitor C 2 and diode D7 form; The signal of its output is connected with described comparator IC2 in-phase end
One controlling output circuit comprises: capacitor C 3, resistance R 6, triode Q, diode D5; Certainly the output of control circuit is to described magnet spool XQ.When the circuit failed because, electric current moment increase on the described phase line segment 18.Thereby on the coil of described instrument transformer TA, induce voltage signal, through being input to the in-phase input end of comparison circuit comparator IC2 after described capacitor C 2 and diode D7 filtering and the rectification, and with the reference voltage comparison of comparison circuit comparator IC2 inverting input; Thereby the output high potential, and then input to described triode Q base stage, drive triode Q conducting; So there is triggering signal (signal of telecommunication) to be transferred to magnet spool XQ, make the electromagnet action, promptly described armature moves upward; Thereby the described trigger arm 22 that opens circuit is moved upward; Described reset terminal stretches out described guide hole 111, accomplishes the process that opens circuit of foregoing description, links to each other with the described first input end that obtains burning voltage because described variohm W is set; Carry out dividing potential drop; With the voltage after partial value as reference voltage, so can be through the resistance of the described variohm W of adjustment, and then adjustment makes the threshold value of the triggering signal of comparator IC2 output.
The above is merely preferred embodiment of the present invention, only is illustrative for the purpose of the present invention, and nonrestrictive.Those skilled in the art is understood, and in spirit that claim of the present invention limited and scope, can carry out many changes to it, revise, in addition equivalent, but all will fall in protection scope of the present invention.
Claims (6)
1. electromagnetic short circuit protection breaker, it comprises: a breaker body, it comprises: a housing; Described housing is outside equipped with one in order to realize the handle of make-break operation; One end of said handle is connected with a link gear, the separation that realizes dynamic and static contact on the dynamic and static contact through link gear with contact; It is characterized in that: also comprise:
One short-circuit detecting subelement detects in order to carry out short trouble, and when short circuit takes place, produces a triggering signal;
One electromagnetism actuating mechanism, it accepts described triggering signal, and described electromagnetism actuating mechanism comprises: an electromagnet and open circuit a trigger arm and a poke rod; Wherein, described electromagnet armature end is connected with the described trigger arm that opens circuit, and described poke rod one end overlaps with a gangbar of described link gear mutually; The other end is connected with the described trigger arm that opens circuit, and the upper end of the said trigger arm that opens circuit is a reset terminal, and it extends in said case top one pilot hole; When receiving described triggering signal; Described electromagnet armature drives the described trigger arm action of opening circuit, thereby makes the described link gear action of described poke rod pushing tow, makes the separation of described dynamic and static contact; This moment, said reset terminal moved along described pilot hole, thereby played indication and self-locking action.
2. according to the said electromagnetic short circuit protection breaker of claim 1, it is characterized in that: described short-circuit detecting subelement is a tongue tube, and an end of described tongue tube is connected with phase line or zero line.
3. electromagnetic short circuit protection breaker according to claim 1 is characterized in that: described short-circuit detecting subelement comprises:
One power circuit after it obtains the signal of telecommunication from phase line and zero line, and is processed into a burning voltage;
One testing circuit changes in order to the electric current that detects on the phase line, produces one first detection signal;
One comparison circuit, it has the first input end that obtains a reference voltage and obtains second input of said first detection signal, and when short circuit takes place, exports a control signal.
4. electromagnetic short circuit protection breaker according to claim 2 is characterized in that: the solenoid that said electromagnet has is connected serially between described tongue tube and the phase line, or is connected serially between described tongue tube and the zero line;
The described trigger arm that opens circuit also has a protuberance;
The protuberance of the other end of said poke rod and the described trigger arm that opens circuit offsets; The protuberance of the said trigger arm that opens circuit pushes described poke rod when described armature motion; Described poke rod is rotated; Make described link gear action force the separation of described dynamic and static contact, the described trigger arm reset terminal that opens circuit stretches out housing.
5. electromagnetic short circuit protection breaker according to claim 3; It is characterized in that: solenoid one end that described electromagnet has is connected with described power circuit output end; The other end is connected with the emitter of a triode, and described transistor base is connected with the output of described comparison circuit;
The described trigger arm that opens circuit also has a protuberance;
The protuberance of the other end of said poke rod and the described trigger arm that opens circuit offsets; The protuberance of the said trigger arm that opens circuit pushes described poke rod when described armature motion; Described poke rod is rotated; Make described link gear action force the separation of described dynamic and static contact, the described trigger arm reset terminal that opens circuit stretches out housing.
6. electromagnetic short circuit protection breaker according to claim 5; It is characterized in that: described testing circuit is a tongue tube; One end of described tongue tube is connected with described power circuit output end, and the other end of described tongue tube is connected with described comparison circuit second input.
Priority Applications (10)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100488486A CN101656180B (en) | 2008-08-18 | 2008-08-18 | Electromagnetic short circuit protection breaker |
| EP09771914.0A EP2309528A4 (en) | 2008-07-04 | 2009-03-17 | Breaker with short circuit self-locking function |
| BRPI0913668A BRPI0913668A2 (en) | 2008-07-04 | 2009-03-17 | circuit breaker with short circuit self-locking function |
| PCT/CN2009/070833 WO2010000144A1 (en) | 2008-07-04 | 2009-03-17 | Breaker with short circuit self-locking function |
| MX2011000148A MX2011000148A (en) | 2008-07-04 | 2009-03-17 | Breaker with short circuit self-locking function. |
| JP2011515069A JP5444336B2 (en) | 2008-07-04 | 2009-03-17 | Breaker with short self-locking function |
| AU2009266231A AU2009266231A1 (en) | 2008-07-04 | 2009-03-17 | Breaker with short circuit self-locking function |
| US12/845,783 US8334739B2 (en) | 2008-07-04 | 2010-07-29 | Circuit breaker with short circuit self-locking function |
| ZA2011/00071A ZA201100071B (en) | 2008-07-04 | 2011-01-04 | Breaker with short circuit self-locking function |
| CO11012473A CO6351834A2 (en) | 2008-07-04 | 2011-02-03 | Circuit breaker with self-locking function in short circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100488486A CN101656180B (en) | 2008-08-18 | 2008-08-18 | Electromagnetic short circuit protection breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101656180A CN101656180A (en) | 2010-02-24 |
| CN101656180B true CN101656180B (en) | 2012-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100488486A Expired - Fee Related CN101656180B (en) | 2008-07-04 | 2008-08-18 | Electromagnetic short circuit protection breaker |
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| Country | Link |
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| CN (1) | CN101656180B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010022596A1 (en) * | 2010-05-31 | 2011-12-01 | Siemens Aktiengesellschaft | Switch, in particular circuit breaker for low voltage |
| CN206541249U (en) * | 2016-03-08 | 2017-10-03 | 勾富 | Computer and computer water-filled radiator water-leakage protecting device |
| CN111710570A (en) * | 2020-07-22 | 2020-09-25 | 南京贝思特信息科技有限公司 | Automatic partition type arc-isolating cover for circuit breaker |
| CN112053920B (en) * | 2020-08-26 | 2021-12-07 | 加西亚电子电器股份有限公司 | Circuit board power-off mechanism of intelligent circuit breaker |
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| CN1525513A (en) * | 2003-06-24 | 2004-09-01 | 正泰集团公司 | Residual current action tripping device for phase line and mid line circuit breaker |
| CN101145478A (en) * | 2007-10-12 | 2008-03-19 | 温州市新蓝天电器有限公司 | Circuit breaker with leakage, overloading and short circuit protector |
-
2008
- 2008-08-18 CN CN2008100488486A patent/CN101656180B/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0074576A2 (en) * | 1981-09-14 | 1983-03-23 | Siemens Aktiengesellschaft | Combined protective fault-current switch and protective circuit breaker |
| EP0537090B1 (en) * | 1991-10-10 | 1995-12-13 | Schneider Electric Sa | Electric circuit breaker with insertion of extra-turns in the magnetic trip mechanism winding |
| CN2256585Y (en) * | 1995-12-21 | 1997-06-18 | 佛山市半导体器件厂 | Single phase leakage circuit breaker |
| CN1238546A (en) * | 1998-06-04 | 1999-12-15 | 施耐德电器工业公司 | Electrical breaking device comprising differential trip device and circuit breaker comprising such device |
| EP1130613B1 (en) * | 2000-02-11 | 2003-10-08 | Bticino S.P.A. | Automatic switch with actuating electromagnet for short circuits |
| CN1525513A (en) * | 2003-06-24 | 2004-09-01 | 正泰集团公司 | Residual current action tripping device for phase line and mid line circuit breaker |
| CN101145478A (en) * | 2007-10-12 | 2008-03-19 | 温州市新蓝天电器有限公司 | Circuit breaker with leakage, overloading and short circuit protector |
Non-Patent Citations (1)
| Title |
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| JP特开平8-241662A 1996.09.17 |
Also Published As
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|---|---|
| CN101656180A (en) | 2010-02-24 |
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