CN103996575A - Thermomagnetic breaker capable of current detection and communication - Google Patents
Thermomagnetic breaker capable of current detection and communication Download PDFInfo
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- CN103996575A CN103996575A CN201410194668.4A CN201410194668A CN103996575A CN 103996575 A CN103996575 A CN 103996575A CN 201410194668 A CN201410194668 A CN 201410194668A CN 103996575 A CN103996575 A CN 103996575A
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Abstract
The invention discloses a thermomagnetic breaker capable of current detection and communication. The thermomagnetic breaker is composed of a breaker protective unit and a current detection and communication unit, wherein the current detection and communication unit is embedded into the breaker protective unit, the breaker protective unit realizes a protection function, the current detection and communication unit realizes a monitoring function, and the protection function is independent from the monitoring function. Due to technical scheme of the invention, structural layout is simple, the reliability is high, the standardized current detection and communication unit used for the thermomagnetic breaker is realized, the protection function is independent from the monitoring function, and the size of the thermomagnetic breaker capable current detection and communication is smaller.
Description
Technical field
The present invention relates to the structure of circuit breaker, more particularly, relate to a kind of integral layout structure with the Thermomagnetic type circuit breaker of current detecting and communication function.
Background technology
The intellectuality of circuit breaker can communication be one of most important developing direction of current circuit breaker, the circuit breaker of electronic type carries out unified monitoring and management owing to can detecting the current value in loop and current value being sent to host computer from communication interface, significantly promoted the intelligent level of distribution system, greatly facilitated the power energy monitoring and controlling of each branch road of distribution and management, so be more and more subject to user's attention and like, but electronic type product is compared traditional Thermomagnetic type circuit breaker and is also existed some problems and hidden danger, for example: product is owing to needing the circuit of built-in current instrument transformer and function complexity, compare traditional Thermomagnetic type circuit breaker significantly cost and the volume of improving product, because current transformer needs the magnetic saturation intensity (BH curve does not distort) that circuit is carried out to spontaneous power supply and guarantee iron core simultaneously, realize quite difficulty of current transformer Miniaturization Design, the meeting of miniaturization simultaneously causes the remarkable lifting of Electric Circuit Electromagnetic Compatibility problem and insulation protection problem, product reliability significantly reduces.
Summary of the invention
Object of the present invention aims to provide a kind of Thermomagnetic type circuit breaker with current detecting and communication function; this Thermomagnetic type breaker structure layout is simple; good reliability; can realize standardized, for current detecting and the communication unit of Thermomagnetic type circuit breaker; realized defencive function separated with communication detection function, realized the more belt current of small size simultaneously and detect and communication function.
For achieving the above object; a kind of Thermomagnetic type circuit breaker with current detecting and communication function of the present invention comprises Thermomagnetic type circuit breaker; it is characterized in that: described Thermomagnetic type circuit breaker is comprised of breaker protection unit and current detecting and communication unit; current detecting and communication unit are arranged on breaker protection unit by embedded; by breaker protection unit, realize defencive function; by current detecting and communication unit, realize monitoring function, defencive function is separated with monitoring function.
Further, described breaker protection unit by contact mechanism, thermal overload bimetal leaf and wink motor magnet form.
Further, described current detecting and communication unit are comprised of housing, current transformer and circuit board; A plurality of current transformers and circuit board are installed in housing, and circuit board is connected with a plurality of current transformers respectively by wire, is provided with the communication interface that can connect with external communication circuit on circuit board.
Further, the core material of described current transformer is to be made by high permeability materials, can adopt silicon steel material or ultracrystallite material or permalloy material.
In technique scheme, behind traditional Thermomagnetic type breaker protection unit, be connected in series this current detecting and communication unit, current transformer in this current detecting and communication unit is powered the circuit on the circuit board to built-in, and provide the current analog signal of major loop, after processing by circuit computing, can the current value of major loop be sent in outside data sink in real time by the communication interface on unit, different with electronic breaker is, the defencive function of circuit self is realized by Thermomagnetic type circuit breaker, and current detecting and communication unit are to realize accurate detection and the high power that low power number determines under current conditions to count the fuzzy detection under rated current, do not need to repeat to realize the defencive function of circuit, therefore in the delay protection maximum 10In or 12In that require at power distribution circuit, do not need to consider the saturation problem of current transformer core, it is the distortion problem of magnetic flux density curve (BH curve), therefore current transformer need not too much consider that magnetic saturation problem limits the volume of iron core, by removing circuit, the output of magnetic flow convertor is required to (12V) simultaneously, can reduce in circuit power consumption at least 60% situation, guarantee the normal power supply of current transformer to circuit board.
The present invention has following beneficial effect: the first, and breaker protection of the present invention unit traditional electronic breaker of comparing, has saved electronics magnetic flow convertor, and overall structure is simple, and volume reduces, and is convenient to install; Second, current detecting and communication unit have been installed behind breaker protection unit, have been realized defencive function separated with communication detection function, whole device integral layout is simple, can realize normalizing operation, realize the more belt current of small size simultaneously and detect and communication function; Second, by using the materials such as silicon steel sheet, ultracrystallite or permalloy of high permeability as the iron core of current transformer, can significantly reduce compared with electronic breaker the volume of current transformer, good reliability, can realize whole current detecting and communication unit simultaneously, and even with the significantly minimizing of the Thermomagnetic type circuit breaker overall volume of this kind of communication unit, integral installation size can be much smaller than existing electronic breaker product.
Accompanying drawing explanation
The above and other features of the present invention, character and advantage are by by becoming more obvious below in conjunction with accompanying drawing to the description of embodiment, and in the accompanying drawings, identical Reference numeral represents identical feature all the time, wherein:
Fig. 1 shows current detecting of the present invention and the external a kind of structural representation with the Thermomagnetic type circuit breaker of current detecting and communication function of communication unit;
Fig. 2 shows a kind of Thermomagnetic type circuit breaker internal structure block diagram with current detecting and communication function of the present invention;
Fig. 3 shows the structural representation of circuit breaker protected location in a kind of Thermomagnetic type circuit breaker with current detecting and communication function of the present invention;
Fig. 4 shows the three-dimensional structure diagram of current detecting and communication unit in a kind of Thermomagnetic type circuit breaker with current detecting and communication function of the present invention;
Fig. 5 shows the current detecting of Fig. 4 and the internal structure schematic diagram of communication unit;
Fig. 6 shows the internal structure block diagram of traditional electronic breaker;
Fig. 7 shows current detecting of the present invention and the built-in a kind of structural representation with the Thermomagnetic type circuit breaker of current detecting and communication function of communication unit.
Embodiment
Below in conjunction with accompanying drawing, a kind of Thermomagnetic type circuit breaker with current detecting and communication function of the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.Current detecting of the present invention and communication unit can be built-in and external, and embodiments of the invention are external structure.
As seen from Figure 1; the Thermomagnetic type circuit breaker that the present invention is a kind of has current detecting and a communication function is comprised of breaker protection unit 1 and current detecting and communication unit 2; in the present embodiment, current detecting and communication unit 2 are arranged on breaker protection unit 1 by embedded; by breaker protection unit 1, realize defencive function; by current detecting and communication unit 2, realize monitoring function, it is separated with monitoring function that the present embodiment has been realized defencive function.
From Fig. 1, Fig. 2, Fig. 3, the present embodiment is a kind of have breaker protection unit 1 in the Thermomagnetic type circuit breaker of current detecting and communication function by contact mechanism 3, thermal overload bimetal leaf 4 and wink motor magnet 5 form.In the present embodiment; contact mechanism 3, thermal overload bimetal leaf 4 and wink motor magnet 5 be installed in the pedestal of breaker protection unit 1; by the size of curent change and heat, control contact mechanism 3, thermal overload bimetal leaf 4 and wink motor magnet 5 action, realize the defencive function of Thermomagnetic type circuit breaker.
From Fig. 1, Fig. 2, Fig. 4, Fig. 5, current detecting and communication unit 2 that the present embodiment is a kind of to be had in the Thermomagnetic type circuit breaker of current detecting and communication function are comprised of housing 6, current transformer 7 and circuit board 8; In the present embodiment; current detecting and communication unit 2 are by the embedded mounting groove that is arranged on breaker protection unit 1 leading-out terminal phase partition of housing 6; a plurality of current transformers 7 corresponding with the outlet terminal of breaker protection unit 1 are installed in the mounting hole site of housing 6, circuit board 8 is also installed in housing 6.Circuit board 8 is connected with a plurality of current transformers 7 respectively by wire, is provided with the communication interface 9 that can connect with external communication circuit on circuit board 8, by communication interface 9, can connect with external communication circuit, transmits real-time main circuit current parameter.
In the present embodiment, the core material of current transformer 7 is to be made by high permeability materials, and the present embodiment is to adopt silicon steel material to make, and also can adopt in addition ultracrystallite material or permalloy material.The core material of current transformer 7 adopts high permeability materials to make, dwindled small product size, improved instrument transformer output electric energy, can guarantee that circuit normally works, simultaneously because communication detection function is separated with defencive function, therefore it is significantly saturated only to require iron core can not occur under major loop 3-5 rated current doubly, as simultaneously effective in detected with defencive function, make circuit carry out the calculating of normal electrical flow valuve and output (by the requirement of GB14048.2 product GB to main circuit current, circuit breaker time-delay current maximum is 10-12 rated current doubly, therefore it is significantly saturated that the current transformer core of electronic breaker requires can not occur under major loop 10-12 rated current doubly, remarkable saturated meeting causes sample rate current wave distortion and cannot calculate current value), therefore transformer iron core and overall dimensions can significantly reduce.
Fig. 6 shows the internal structure block diagram of traditional electronic breaker; By Fig. 6, can be shown; the protection of traditional electronic breaker and communication unit had both been born the defencive function of circuit breaker; born again the monitoring function of circuit breaker, its inner wink motor magnet, contact mechanism and electronics magnetic flow convertor have been born the assistant protection function of circuit breaker.In traditional electronic breaker, because protection and monitoring function do not have separatedly, can not realize normalizing operation, in addition, owing to being provided with electronics magnetic flow convertor, complex structure, takies volume larger.
Fig. 7 provides current detecting of the present invention and the built-in a kind of structural representation with the Thermomagnetic type circuit breaker of current detecting and communication function of communication unit.In Fig. 7, current detecting and communication unit 2 are built in breaker protection unit 1, structure is more compact, and other 26S Proteasome Structure and Function is consistent with the present embodiment.
In the present embodiment, at breaker protection unit 1 this current detecting of rear serial connection and communication unit 2, current transformer 7 in this current detecting and communication unit 2 is powered the circuit on the circuit board to built-in 8, and provide the current analog signal of major loop, after processing by circuit computing, can the current value of major loop be sent in outside data sink in real time by the communication interface 9 on current detecting and communication unit 2, the present embodiment can reduce in circuit power consumption at least 60% situation, guarantee that the circuit on 7 pairs of circuit boards 8 of current transformer carries out normal power supply.The present embodiment topology layout is simple, good reliability, can realize standardized, for current detecting and the communication unit of Thermomagnetic type circuit breaker, realized defencive function separated with communication detection function, the belt current of simultaneously realizing small size more detects and communication function.In addition, the breaker protection unit of this implementation column traditional electronic breaker of comparing, has saved electronics magnetic flow convertor, and overall structure is simple, and volume reduces, and is convenient to install; Behind breaker protection unit, be connected in series current detecting and communication unit, realized defencive function separated with communication detection function, whole device integral layout is simple, can realize normalizing operation, realizes the more belt current of small size simultaneously and detects and communication function; By using the materials such as silicon steel sheet, ultracrystallite or permalloy of high permeability as the iron core of current transformer, can significantly reduce compared with electronic breaker the volume of current transformer, good reliability, can realize whole current detecting and communication unit simultaneously, and even with the significantly minimizing of the Thermomagnetic type circuit breaker overall volume of this kind of communication unit, integral installation size can be much smaller than existing electronic breaker product.
Above-described embodiment is to provide to being familiar with person in the art and realizes or use of the present invention; those skilled in the art can be in the situation that not departing from inventive concept; above-described embodiment is made to various modifications and variation; thereby protection scope of the present invention is not to be limit by above-described embodiment, and it should be the maximum magnitude that meets the character of innovation that claim mentions.
Claims (4)
1. a Thermomagnetic type circuit breaker with current detecting and communication function; it is characterized in that: described Thermomagnetic type circuit breaker is comprised of breaker protection unit and current detecting and communication unit; current detecting and communication unit are arranged on breaker protection unit; by breaker protection unit, realize defencive function; by current detecting and communication unit, realize monitoring function, defencive function is separated with monitoring function.
2. the Thermomagnetic type circuit breaker of a kind of concrete current detecting according to claim 1 and communication function, is characterized in that: described breaker protection unit by contact mechanism, thermal overload bimetal leaf and wink motor magnet form.
3. the Thermomagnetic type circuit breaker of a kind of concrete current detecting according to claim 1 and communication function, is characterized in that: described current detecting and communication unit are comprised of housing, current transformer and circuit board; A plurality of current transformers and circuit board are installed in housing, and circuit board is connected with a plurality of current transformers respectively by wire, is provided with the communication interface that can connect with external communication circuit on circuit board.
4. a kind of Thermomagnetic type circuit breaker with current detecting and communication function according to claim 3, it is characterized in that: the core material of described current transformer is to be made by high permeability materials, can adopt silicon steel material or ultracrystallite material or permalloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410194668.4A CN103996575A (en) | 2014-05-09 | 2014-05-09 | Thermomagnetic breaker capable of current detection and communication |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410194668.4A CN103996575A (en) | 2014-05-09 | 2014-05-09 | Thermomagnetic breaker capable of current detection and communication |
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| CN103996575A true CN103996575A (en) | 2014-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410194668.4A Pending CN103996575A (en) | 2014-05-09 | 2014-05-09 | Thermomagnetic breaker capable of current detection and communication |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108597962A (en) * | 2018-03-22 | 2018-09-28 | 华为技术有限公司 | A kind of miniature circuit breaker and its control method, system |
Citations (4)
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| CN1501417A (en) * | 2002-11-13 | 2004-06-02 | 三菱电机株式会社 | Circuit breaker |
| EP1670013A2 (en) * | 2004-12-09 | 2006-06-14 | EATON Corporation | Electrical switching apparatus including a housing and a trip circuit forming a composite structure |
| CN101950713A (en) * | 2010-09-14 | 2011-01-19 | 河北宝凯电器有限公司 | Small intelligent circuit breaker convenient for adjusting |
| CN203839301U (en) * | 2014-05-09 | 2014-09-17 | 安庆天瑞新材料科技股份有限公司 | Thermo-magnetic circuit breaker having current detection and communication functions |
-
2014
- 2014-05-09 CN CN201410194668.4A patent/CN103996575A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1501417A (en) * | 2002-11-13 | 2004-06-02 | 三菱电机株式会社 | Circuit breaker |
| EP1670013A2 (en) * | 2004-12-09 | 2006-06-14 | EATON Corporation | Electrical switching apparatus including a housing and a trip circuit forming a composite structure |
| CN101950713A (en) * | 2010-09-14 | 2011-01-19 | 河北宝凯电器有限公司 | Small intelligent circuit breaker convenient for adjusting |
| CN203839301U (en) * | 2014-05-09 | 2014-09-17 | 安庆天瑞新材料科技股份有限公司 | Thermo-magnetic circuit breaker having current detection and communication functions |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108597962A (en) * | 2018-03-22 | 2018-09-28 | 华为技术有限公司 | A kind of miniature circuit breaker and its control method, system |
| US10818459B2 (en) | 2018-03-22 | 2020-10-27 | Huawei Technologies Co., Ltd. | Miniature circuit breaker, control method thereof, and control system thereof |
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Application publication date: 20140820 |