CN104282511A - Modularized electronic miniature circuit breaker and electrical system using the same - Google Patents
Modularized electronic miniature circuit breaker and electrical system using the same Download PDFInfo
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- CN104282511A CN104282511A CN201310272151.8A CN201310272151A CN104282511A CN 104282511 A CN104282511 A CN 104282511A CN 201310272151 A CN201310272151 A CN 201310272151A CN 104282511 A CN104282511 A CN 104282511A
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- circuit breaker
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- circuit
- type miniature
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/021—Details concerning the disconnection itself, e.g. at a particular instant, particularly at zero value of current, disconnection in a predetermined order
- H02H3/023—Details concerning the disconnection itself, e.g. at a particular instant, particularly at zero value of current, disconnection in a predetermined order by short-circuiting
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Abstract
The invention discloses a modularized electronic miniature circuit breaker, wherein a circuit signal acquiring device, a circuit board assembly and a relay are integrated in a modularized housing, so that the circuit breaker realizes functions of large-current instantaneous tripping, small-current time delay tripping, overload tripping, overvoltage protecting, undervoltage protecting, protection selectivity, multifunctionality, interactive communication, etc. The invention further discloses an electrical system with the electronic miniature circuit breaker for realizing protection selectivity, and a multi-pole modularized electronic miniature circuit breaker.
Description
Technical field
The present invention relates to a kind of digital-to-analogue electronic type miniature circuit breaker, more specifically, relate to the digital-to-analogue electronic type miniature circuit breaker for Terminal Power Distribution System, the invention still further relates to the electrical system and multi-pole modelling electronic type miniature circuit breaker that use it.
Background technology
Miniature circuit breaker is most popular a kind of terminal protection electrical equipment in electric terminal power distribution equipment.Circuit breaker can be connected, carry certain hour and breaking current under the improper circuit condition of regulation, provides circuit protection.Current miniature circuit breaker is generally mechanical type, namely when circuit is short-circuited or heavy overload time, the armature adhesive of overcurrent trip, makes free tripping mechanism action, main contacts disconnect main circuit.When circuit overloads, the thermal element heating of thermal overload release makes on bimetal leaf bending, promotes free tripping mechanism action.
But along with the development of producing and the progress of science and technology, mechanical mini circuit breaker shows gradually can not be competent at various protection demand completely, weak point be mainly manifested in following some.
First, mechanical bimetal leaf design is complicated, and the impact by temperature is larger.
Secondly, when mechanical mini circuit breaker breaks down in circuit, instantaneous disconnection major loop, poor selectivity.Cooperation between selectivity refers to by automatic safety device, make the fault of electrical network arbitrfary point can and the performance only got rid of by the circuit breaker of the direct upper level of fault.In simple terms, selectivity is used for, in life, utilize selectivity, can only disconnect the circuit broken down in family, and not affect the normal operation of other electrical equipment, also therefore, it is possible to indication fault place, bring convenience to life.In industrial aspect, this selectivity then seems particularly important.The power-off of industrial production line will cause to produce to be interrupted, and cause delaying delivery date, also may destroy production equipment, economic loss is huge.More seriously, important safety means may be closed down, cause the major accidents such as leakage, environmental pollution.If industrial production line has selectivity, when breaking down, only stop faulty line, then can avoid or alleviate the problems referred to above.
Again, mechanical type circuit breaker does not possess measuring ability to the electric current flowing through circuit.Along with the development of electric automatization and the universal of microcomputer; applying microcomputer in online line safety protection is inevitable trend; people expect to understand more curtage information, to realize defencive function better, and can communicate with other intelligent terminals.
Therefore, expect to provide possess selectivity, can Acquisition Circuit information and with the digital-to-analogue electronic type miniature circuit breaker that can communicate with other intelligent terminals.
Summary of the invention
Above-mentioned purpose is by all or part of realization of digital-to-analogue electronic type miniature circuit breaker of the present invention.
According to an aspect of the present invention, a kind of digital-to-analogue electronic type miniature circuit breaker is provided, comprises digital-to-analogue housing, also comprise and be arranged in housing: mechanical part, connect in circuit, for the instantaneous operation when electric current reaches first threshold with open circuit.Also comprise electronic control part, be connected in loop, P pole, for from loop, P pole Acquisition Circuit information, and the action when circuit information reaches setting model, control described mechanical part action with open circuit simultaneously.
Preferably, described electronic control part comprises signals collecting inductor, integrated circuit board component, relay, electric supply installation and the second mechanical component, signals collecting inductor is used for from loop, P pole Acquisition Circuit information, and circuit information is sent to integrated circuit board component, electric supply installation is used for relay and surface-mounted integrated circuit assembly power supply, integrated circuit board component can arrange described condition, and computational analysis circuit information, when reaching described setting model, the action of integrated circuit board component control relay, drive the second dynamic mechanical component, described second mechanical component drives described first mechanical part action with open circuit.
Preferably, described mechanical part comprises magnetic coil assemblies, is connected to loop, P pole, the action when electric current in loop, P pole reaches first threshold; Contact assembly, comprises the contact that at least one is connected to loop, P pole, for disconnecting and closed circuit; First mechanical component, for connecting contact assembly, when magnetic coil assemblies action, being actuated by magnetic coil assemblies and making contact assembly action, and for when described second mechanical component action, is driven and make contact assembly action by described second mechanical component; Arc-control device, for eliminating the electric arc produced when contact assembly disconnects and closes.
Preferably, above-mentioned digital-to-analogue electronic type miniature circuit breaker is by circuit board assemblies setting model.
Preferably, described condition can comprise current threshold, voltage threshold and delay time.
Preferably, above-mentioned digital-to-analogue electronic type miniature circuit breaker also comprises the data-interface being connected to circuit board assemblies.
According to a further aspect in the invention, provide a kind of multi-pole modelling electronic type miniature circuit breaker, comprise n the digital-to-analogue electronic type miniature circuit breaker according to claim 1 integrated.
Preferably, n is the arbitrary integer in 1 to 4.
According to another aspect of the invention, a kind of electrical system realizing protective seletion is provided, comprise the digital-to-analogue electronic type miniature circuit breaker according to any one of claim 1 to 13 be arranged in upper level circuit, with the mechanical type circuit breaker be arranged in next stage circuit, in the digital-to-analogue electronic type miniature circuit breaker according to any one of claim 1 to 16, time delay is set, when instantly breaking down in stage circuit, the instantaneous disconnection of mechanical type circuit breaker in next stage circuit, due to described time delay, digital-to-analogue electronic type miniature circuit breaker in upper level circuit does not disconnect, realize protective seletion.
Preferably; some grades of circuit can be comprised in described upper level circuit; the digital-to-analogue electronic type miniature circuit breaker according to any one of claim 1 to 16 of respective numbers is comprised respectively in described some grades of circuit; different time delays is set in miniature circuit breaker respectively, makes the delay time of the circuit breaker in the arbitrary higher level's circuit in described upper level circuit longer than the delay time of the circuit breaker in arbitrary subordinate circuit.
According to another aspect of the invention; a kind of electrical system realizing protective seletion is provided; comprise and some digital-to-analogue electronic type miniature circuit breakers according to any one of claim 7 to 16 are set; some digital-to-analogue electronic type miniature circuit breakers are communicated with one another by the data-interface of described circuit breaker; in described digital-to-analogue electronic type miniature circuit breaker, time delay is set; by the electric current in more described some circuit breakers, accurate failure judgement, realizes protective seletion.
By digital-to-analogue electronic type miniature circuit breaker according to the present invention; traditional mechanical type circuit breaker can be replaced completely; complete selectivity, under-voltage protection, overvoltage protection can be realized; and can expanded function easily; electric current, information of voltage are provided, carry out failure logging, instruction, the remote alarms of threading off etc., also can realize networking; control in real time, networking monitoring.
Accompanying drawing explanation
Fig. 1 is the three-dimensional view according to digital-to-analogue electronic type miniature circuit breaker of the present invention;
Fig. 2 is the left side isometric view according to digital-to-analogue electronic type miniature circuit breaker of the present invention that partial shell is removed;
Fig. 3 is the left side elevation view according to digital-to-analogue electronic type miniature circuit breaker of the present invention that partial shell is removed;
Fig. 4 is the three-dimensional view according to digital-to-analogue electronic type miniature circuit breaker of the present invention that partial shell is removed, and shows the coil for detecting electric current;
Fig. 5 is the perspective right view according to digital-to-analogue electronic type miniature circuit breaker of the present invention that partial shell is removed, and shows the coil for detecting electric current and the coil for powering;
Fig. 6 is the right side elevation view according to digital-to-analogue electronic type miniature circuit breaker of the present invention that partial shell is removed, and shows the coil for detecting electric current and the coil for powering;
Fig. 7 is the three-dimensional view of coil block according to an embodiment of the invention;
Fig. 8 is the schematic diagram showing principle of the present invention;
Fig. 9 is the example of the dropout curve of the mechanical mini circuit breaker of prior art;
Figure 10 is the example of the dropout curve according to digital-to-analogue electronic type miniature circuit breaker of the present invention;
Figure 11 is the exploded perspective view of digital-to-analogue electronic type miniature circuit breaker according to a preferred embodiment of the invention.
Embodiment
Describe general principle of the present invention and structure below with reference to accompanying drawings in detail.The direction of the operating state when direction such as " upside ", " left side ", " right side " in accompanying drawing is installed on the vertical plane with reference to circuit breaker of the present invention is described, and only for purpose of explanation, limits never in any form.Term P pole used in literary composition refers to live wire, N pole nulling line or the neutral line.
By miniature circuit breaker electronization, need in circuit breaker, add curtage instrument transformer.But the width of miniature circuit breaker to product has high requirement, is generally the modular design of 9mm, and namely case width is generally the multiple of 9mm, be therefore a challenge concerning miniature circuit breaker.
Describe concrete structure according to an embodiment of the invention below with reference to accompanying drawings in detail.
GB10963.1 specifies, miniature circuit breaker must have overload protection and short-circuit protection function.Therefore, according to one embodiment of present invention, propose the digital-to-analogue electronic type miniature circuit breaker that a kind of the two poles of the earth are assembled, Fig. 1 is the three-dimensional view of this electronic type miniature circuit breaker, and it is totally presented at 1 place.As can be seen from Figure 1, this miniature circuit breaker 1 comprises pole, the left side one 2, and pole, the right one 3.Particularly; with reference to Figure 11; Figure 11 is the exploded perspective view of digital-to-analogue electronic type miniature circuit breaker according to a preferred embodiment of the invention; this circuit breaker comprises digital-to-analogue housing; described housing comprises the first housing 101, second housing 102, the 3rd housing 103, the 4th housing 104, the 5th housing 105 and the 6th housing 106; wherein; first housing 101, second housing 102, the 3rd housing 103 and the 4th housing 104 form the housing of pole, the left side one 2, and the 4th housing 104, the 5th housing 105 and the 6th housing 106 form the housing of one pole 3, the right.
Fig. 2 is the left side isometric view according to digital-to-analogue electronic type miniature circuit breaker of the present invention that partial shell is removed, and Fig. 3 is the left side elevation view according to digital-to-analogue electronic type miniature circuit breaker of the present invention that partial shell is removed.In reference Figure 11, Fig. 2 and Fig. 3, removed housing is the first housing 101 and the 3rd housing 103 simultaneously.From Fig. 2, Fig. 3 and Figure 11, the each parts on the left of the second housing 102 of pole, the circuit breaker left side one can be seen, comprise breaker mechanical assembly 4, magnetic coil 5, N pole moving contact 6, N pole fixed contact 7 and arc control device 8, and on the right side of the second housing 102, comprise P pole moving contact and P pole fixed contact.Magnetic coil is arranged in the major loop of P pole, as shown in Figure 8.P pole moving contact and P pole fixed contact and N pole moving contact and N pole fixed contact are all fixed on breaker mechanical assembly 4.
It should be noted, the layout of pole, the left side one 2 is identical with the cardinal principle of existing mechanical mini circuit breaker, and difference is not comprise bimetal leaf, when circuit is short-circuited, big current (general 15In), by magnetic coil 5, makes magnetic assembly 5 respond to and produces magnetomotive, overcome spring force, driving lance moves, and mechanical component loses stable state, P pole moving contact and P pole fixed contact rotating separation, instantaneous disconnection P circuit, meanwhile, N pole moving contact and N pole fixed contact also rotating separation, instantaneous disconnection N circuit.
Fig. 4 is the left side isometric view according to digital-to-analogue electronic type miniature circuit breaker of the present invention that partial shell is removed, and shows the coil for detecting electric current; Fig. 5 is the perspective right view according to digital-to-analogue electronic type miniature circuit breaker of the present invention that partial shell is removed, and shows the coil for detecting electric current and the coil for powering; Fig. 6 is the right side elevation view according to digital-to-analogue electronic type miniature circuit breaker of the present invention that partial shell is removed, and shows the coil for detecting electric current and the coil for powering.
Particularly, show the building block of the pole, the right one 3 of the present embodiment in figure, on the right of this, a pole 3 mainly comprises relay 9, coil block 10, integrated circuit board component (PCBA) 13 and accessory side mechanical component 14.This part is control section miniature circuit breaker being realized electronization.Coil block 10 is arranged in loop, P pole, detects the current information in loop, P pole, and current information is supplied to PCBA13 and carries out computational analysis, simultaneously also as power supply, powers to PCBA13 and relay 9.When there is overload in discovery circuit, PCBA13 sends signal, drives relay 9, promotes the action of accessory side mechanical component 14.Simultaneously with reference to the exploded perspective view of Figure 11, as can be seen from FIG., accessory side mechanical component 14 comprises needle shaft, and needle shaft, through the waist hole on housing 104, drives breaker mechanical assembly 3, it is made to lose stable state, P pole moving contact and P pole fixed contact rotating separation, instantaneous disconnection P circuit, simultaneously, N pole moving contact and N pole fixed contact also rotating separation, instantaneous disconnection N circuit.Can see in more detail in Figure 11, miniature circuit breaker side handle 17 is connected with breaker mechanical annex, for N pole moving contact, N pole fixed contact, P pole moving contact and P pole fixed contact being resetted.Accessory side handle 18 is connected with accessory side mechanical component 14, for being resetted by relay.
It should be noted that, machinery declines circuit breaker and electronic control part independent design by the structure taking the two poles of the earth assembled of the present embodiment, then be bolted together, this structure is favourable for the direct type breaker electronic that to be declined by existing machinery at present, original mechanical mini circuit breaker can remain unchanged substantially, just eliminates bimetal leaf.But the present embodiment is exemplary; adopt other arrangements to be also fine, the parts of each parts, particularly electronic control part of circuit breaker can be arranged on the arrangement in digital-to-analogue housing; all within the scope of the invention, and should should not be subject to the restriction of the present embodiment.
Also it should be noted that in the present embodiment and adopt two contact, in practical application, can only adopt single contact, namely only comprise P pole contact, only disconnect P pole when breaking down, this is also in protection scope of the present invention.
Should also be noted that the coil block 10 adopted in the present embodiment, its diagram in fig. 7, comprises electric current detecting coil 12 and core current induction coil 11 and has the silicon steel sheet of two openings.P pole is through electric current detecting coil 12, and electric current detecting coil 12 is for the current information in testing circuit, and P pole is through the first opening on silicon steel sheet, and core current induction coil 11 is installed around the second opening side on silicon steel sheet.P electrode current by time the magnetic field that changes, by silicon steel sheet and core current induction coil 11, induce induced potential, as power supply, power to PCBA13 and relay 9.Electric current detecting coil 12 and core current induction coil 11 can be integrally formed as shown in this embodiment, also can separately be formed.
Should illustrate, the present invention can only adopt electric current detecting coil 12, and the power supply not comprising core current induction coil 11, PCBA13 and relay 9 is by from circuit lead.And the coil block 10 of the present embodiment also can improve further, electric current detecting coil 12 can be taked round-shaped, square configuration or be suitable for any shape of using, and the number of turn aspect of coil 11 and coil 12 also can be optimized further.Electric current detecting coil 12 can use voltage detecting coil to replace, and these improvement all should be within the scope of the invention.
In addition, in structure of the present invention, also can comprise data-interface recited above realization, the fault message of miniature circuit breaker, operating state and current information etc. can exchange to other watch-dogs by this data-interface, and can the expansion of practical function.
By Modular design of the present invention, one pole, bipolar, three poles and four pole electronic type miniature circuit breakers can be realized easily.
Below, in order to the consistency described, still describe the various application according to digital-to-analogue electronic type miniature circuit breaker of the present invention with the embodiments of the invention shown in accompanying drawing, but various application of the present invention is not limited to the embodiment shown in accompanying drawing.
1, large short circuit current instantaneous trip protection
With reference to the schematic block diagram shown in Fig. 8, figure according to this embodiment of the invention.Pole, the left side one in corresponding the present embodiment of left-hand component of Fig. 8, magnetic coil 5 is arranged in loop, P pole, and when there is large short circuit current in loop, P pole, magnetic coil 5 instantaneous operation, realizes instantaneous trip protection.The instantaneous trip curve chart of this pole, left side one shows arrow 10-3 place in Fig. 10, and the display of this place's dropout curve does not have time delay process, but instantaneous disconnection in usual <10ms, namely energy is threaded off.
2, low short circuit current delayed releasing protection
Continue the pole, the right one corresponding to the present embodiment with reference to right-hand component in Fig. 8, figure.Can delay time and current threshold be set in PCBA.Such as, short circuit current threshold value can be set to 5 ~ 10In, this time delay can be set to≤20ms.When in circuit by the electric current that exceedes this threshold value time, the delayed releasing curve that the arrow 10-2 in Figure 10 indicates can be obtained.Compared with the dropout curve of the mechanical mini circuit breaker in Fig. 9, there is obvious time delay step at arrow 10-2 place in the delayed releasing curve in Figure 10 indicated by arrow 10-2.
3, overlond trip protection
The circle that in Figure 10, arrow 10-1 indicates represents overlond trip.In common mechanical type circuit breaker, after relatively large overload current certain time, the heat of generation makes bimetal leaf fully be out of shape, thus open circuit.And in the electronic type miniature breaker of the present embodiment, such as current threshold can be set by PCBA, and the duration, accurately overlond trip is set, and the operation principle of bimetal leaf can be replaced completely, avoid bimetal leaf cold day and hot day the shortcoming such as temperature influence.
By three kinds of application substantially recited above, digital-to-analogue electronic type miniature circuit breaker can be completely achieved the function of circuit breaker according to an embodiment of the invention.And also can be further used in multiple application according to circuit breaker of the present invention.
4, multi-functional
Usually, the circuit breaker selecting different model according to operating current is needed.For example, circuit breaker is divided into the three types worked in three current ranges usually, and current range is respectively 3 ~ 5In, 5 ~ 10In and 10 ~ 14In.But; by using according to digital-to-analogue electronic type miniature circuit breaker of the present invention; working range; also be threshold value recited above, in PCBA13, easily can be arranged by user or producer; that is; by arranging different threshold values in PCBA13, same circuit breaker can be used in any one in three current ranges recited above, and without the need to buying new annex.
Further; by the electric current detecting coil 12 in is according to this embodiment of the invention replaced with voltage detecting coil; gather voltage signal; in PCBA13, voltage threshold is set; and voltage threshold being set in PCBA13, the application of under-voltage protection and overvoltage protection can being realized by making digital-to-analogue electronic type miniature circuit breaker according to the present invention.Such as, open circuit when voltage is reduced to 70% of about normal voltage can be set in PCBA, or open circuit when voltage exceedes about 280V is set.
5, complete selectivity
When digital-to-analogue electronic type miniature circuit breaker according to the present invention together with mechanical type circuit breaker with the use of, and when electronic type miniature circuit breaker of the present invention is arranged in higher level's circuit of mechanical type circuit breaker, because digital-to-analogue electronic type miniature circuit breaker according to the present invention arranges time delay by PCBA13, namely when short circuit current passes through, usual time delay such as≤20ms after just disconnect, this time can be arranged arbitrarily as required, and the opening time of mechanical type circuit breaker usual <10ms, therefore, when there is short circuit current in circuit in mechanical type circuit breaker, mechanical type circuit breaker is by its instantaneous disconnection in loop, place, and electronic breaker according to the present invention is owing to having extensibility, do not disconnect, and disconnected by mechanical type circuit breaker in faulty circuit, after electric current is normal, still place higher level's circuit is kept to run well, thus complete selectivity can be realized.
Because circuit breaker delay time of the present invention can be arranged, therefore under above-mentioned applicable cases, can arrange corresponding according to electronic type miniature circuit breaker of the present invention in some higher level's circuit of higher level's circuit of electronic type miniature circuit breaker application respectively, and respectively different time delays is set in described some miniature circuit breakers, make the delay time of the circuit breaker in the arbitrary higher level's circuit in described some higher level's circuit longer than the delay time of the circuit breaker in arbitrary subordinate circuit, also can realize complete selectivity.
When digital-to-analogue electronic type miniature circuit breaker according to the present invention together with electronic breaker with the use of time; can arrange some according to digital-to-analogue electronic type miniature circuit breaker of the present invention in electrical protection systems; described some digital-to-analogue electronic type miniature circuit breakers are communicated with one another by the data-interface of this circuit breaker; and in described some digital-to-analogue electronic type miniature circuit breakers, time delay is set; by the electric current in more described some circuit breakers; accurate failure judgement, also can realize complete selectivity.
6, with the communication of other-end electronic equipment
By the data-interface (data-interface 19 see shown in Fig. 4 and Figure 11) on digital-to-analogue electronic type miniature circuit breaker according to the present invention; Function Extension can be carried out easily; such as can carry electric current, information of voltage, and there is the function such as failure logging, instruction, faulty indication, the remote alarms of threading off.
7, networking is realized
By the data-interface on digital-to-analogue electronic type miniature circuit breaker according to the present invention, also can control in real time circuit breaker, realize networking monitoring.
Although described in detail for realizing optimal mode of the present invention, but those skilled in the art will recognize, for putting into practice of the present invention multiple alternate design within the scope of claims and execution mode all should comprise within the scope of the invention.
Reference numerals list
1 miniature circuit breaker 101-106 housing
2 pole, the left sides one
A pole on the right of in the of 3
4 breaker mechanical assemblies
5 magnetic coils
6N pole moving contact
7N pole fixed contact
8 arc control device
9 relays
10 coil blocks
11 core current induction coils
12 electric current detecting coils
13PCBA
14 accessory side mechanical components
15P pole fixed contact
16P pole moving contact
17 circuit breaker side handles
18 accessory side handles
19 data-interfaces
Claims (19)
1. a digital-to-analogue electronic type miniature circuit breaker, comprises digital-to-analogue housing, also comprises and is arranged in housing:
Mechanical part, connects in circuit, for the instantaneous operation when electric current reaches first threshold with open circuit,
It is characterized in that, also comprise electronic control part, be connected in loop, P pole, for from loop, P pole Acquisition Circuit information, and the action when circuit information reaches setting model, control described mechanical part action with open circuit simultaneously.
2. digital-to-analogue electronic type miniature circuit breaker according to claim 1, it is characterized in that, described electronic control part comprises:
Signals collecting inductor, integrated circuit board component, relay, electric supply installation and the second mechanical component, signals collecting inductor is used for from loop, P pole Acquisition Circuit information, and circuit information is sent to integrated circuit board component, electric supply installation is used for relay and surface-mounted integrated circuit assembly power supply, integrated circuit board component can arrange described condition, and computational analysis circuit information, when reaching described setting model, the action of integrated circuit board component control relay, drive the second dynamic mechanical component, described second mechanical component drives described first mechanical part action with open circuit.
3. digital-to-analogue electronic type miniature circuit breaker according to claim 1, it is characterized in that, described mechanical part comprises:
Magnetic coil assemblies, is connected to loop, P pole, the action when electric current in loop, P pole reaches first threshold;
Contact assembly, comprises the contact that at least one is connected to loop, P pole, for disconnecting and closed circuit;
First mechanical component, for connecting contact assembly, when magnetic coil assemblies action, being actuated by magnetic coil assemblies and making contact assembly action, and for when described second mechanical component action, is driven and make contact assembly action by described second mechanical component;
Arc-control device, for eliminating the electric arc produced when contact assembly disconnects and closes.
4. the digital-to-analogue electronic type miniature circuit breaker according to any one of Claim 1-3; it is characterized in that; described housing comprises Part I and Part II, and described mechanical part is arranged in described Part I, and described electronic control part is installed in the second portion.
5. digital-to-analogue electronic type miniature circuit breaker according to claim 2, it is characterized in that, described electric supply installation is magnetic coil, and induction produces electromotive force and powers.
6. digital-to-analogue electronic type miniature circuit breaker according to claim 5, is characterized in that, described magnetic coil for powering and described signals collecting inductor can be integrally formed.
7. digital-to-analogue electronic type miniature circuit breaker according to claim 2, is characterized in that, described electric supply installation can be the lead-in wire from major loop.
8. the digital-to-analogue electronic type miniature circuit breaker according to any one of Claim 1-3, is characterized in that, also comprise the data-interface being connected to circuit board assemblies.
9. digital-to-analogue electronic type miniature circuit breaker according to claim 8, is characterized in that, by described data-interface setting model.
10. digital-to-analogue electronic type miniature circuit breaker according to claim 8; it is characterized in that; described data-interface can with for other electronic type miniature circuit breaker communications in interlock circuit, with decision circuitry failure condition more accurately, realize the breaker actuation optionally making fault loop.
11. digital-to-analogue electronic type miniature circuit breakers according to claim 8, is characterized in that, described data-interface can with the communication of other-end electronic equipment, practical function expand.
12. digital-to-analogue electronic type miniature circuit breakers according to claim 2; it is characterized in that; the setting model of described electronic control part comprises: arrange the second current threshold; and delay time; when the electric current in loop, P pole reaches this Second Threshold; after the described delay time of delay, make the actuating of relay, thus make mechanical part action.
13. digital-to-analogue electronic type miniature circuit breakers according to claim 12, it is characterized in that, described Second Threshold is less than described first threshold.
14. digital-to-analogue electronic type miniature circuit breakers according to claim 2; it is characterized in that; the setting model of described electronic control part comprises: can arrange voltage threshold; and delay time; when the voltage in major loop reaches this threshold value; after the described delay time of delay, make the actuating of relay, thus make main contact action.
15. 1 kinds of multi-pole modelling electronic type miniature circuit breakers, comprise n the digital-to-analogue electronic type miniature circuit breaker according to claim 1 integrated.
16. multipole electronic type miniature circuit breakers according to claim 15, wherein n is the arbitrary integer in 1 to 4.
17. 1 kinds of electrical systems realizing protective seletion, comprising:
Be arranged on the digital-to-analogue electronic type miniature circuit breaker according to any one of claim 1 to 14 in upper level circuit, and
Be arranged on the mechanical type circuit breaker in next stage circuit,
In the digital-to-analogue electronic type miniature circuit breaker according to any one of claim 1 to 14, time delay is set; when instantly breaking down in stage circuit; the instantaneous disconnection of mechanical type circuit breaker in next stage circuit; due to described time delay; digital-to-analogue electronic type miniature circuit breaker in upper level circuit does not disconnect, and realizes protective seletion.
18. electrical systems realizing protective seletion according to claim 17,
Some grades of circuit can be comprised in described upper level circuit; the digital-to-analogue electronic type miniature circuit breaker according to any one of claim 1 to 14 of respective numbers is comprised respectively in described some grades of circuit; different time delays is set in miniature circuit breaker respectively, makes the delay time of the circuit breaker in the arbitrary higher level's circuit in described upper level circuit longer than the delay time of the circuit breaker in arbitrary subordinate circuit.
19. 1 kinds of electrical systems realizing protective seletion, comprising:
Arrange some according to Claim 8 to the digital-to-analogue electronic type miniature circuit breaker according to any one of 11; some digital-to-analogue electronic type miniature circuit breakers are communicated with one another by the data-interface of described circuit breaker; in described digital-to-analogue electronic type miniature circuit breaker, time delay is set; by the electric current in more described some circuit breakers; accurate failure judgement, realizes protective seletion.
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|---|---|---|---|
| CN201310272151.8A CN104282511B (en) | 2013-07-01 | 2013-07-01 | Modularized electronic miniature circuit breaker and electrical system using the same |
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| CN201310272151.8A CN104282511B (en) | 2013-07-01 | 2013-07-01 | Modularized electronic miniature circuit breaker and electrical system using the same |
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| CN104282511A true CN104282511A (en) | 2015-01-14 |
| CN104282511B CN104282511B (en) | 2017-05-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106786346A (en) * | 2017-02-10 | 2017-05-31 | 黑龙江恒讯科技有限公司 | A kind of IP-based miniature circuit breaker |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2541948Y (en) * | 2002-04-01 | 2003-03-26 | 叶炳午 | Small breaker |
| KR20090011395U (en) * | 2009-10-19 | 2009-11-10 | 주식회사 삼일전기 | A molded case and earth reakage circuit breaker |
| CN102946083A (en) * | 2012-08-30 | 2013-02-27 | 国家电网公司 | Intelligent household circuit breaker |
| CN203553078U (en) * | 2013-07-01 | 2014-04-16 | 施耐德电器工业公司 | Digital-analog electronic miniature circuit breaker |
-
2013
- 2013-07-01 CN CN201310272151.8A patent/CN104282511B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2541948Y (en) * | 2002-04-01 | 2003-03-26 | 叶炳午 | Small breaker |
| KR20090011395U (en) * | 2009-10-19 | 2009-11-10 | 주식회사 삼일전기 | A molded case and earth reakage circuit breaker |
| CN102946083A (en) * | 2012-08-30 | 2013-02-27 | 国家电网公司 | Intelligent household circuit breaker |
| CN203553078U (en) * | 2013-07-01 | 2014-04-16 | 施耐德电器工业公司 | Digital-analog electronic miniature circuit breaker |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106786346A (en) * | 2017-02-10 | 2017-05-31 | 黑龙江恒讯科技有限公司 | A kind of IP-based miniature circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104282511B (en) | 2017-05-17 |
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