CN104242263A - Breaker with fault arc protecting and alarming functions - Google Patents
Breaker with fault arc protecting and alarming functions Download PDFInfo
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- CN104242263A CN104242263A CN201410436580.9A CN201410436580A CN104242263A CN 104242263 A CN104242263 A CN 104242263A CN 201410436580 A CN201410436580 A CN 201410436580A CN 104242263 A CN104242263 A CN 104242263A
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Abstract
The invention discloses a breaker with the fault arc protecting and alarming functions. The breaker comprises a signal collection unit, a microprocessor unit, an alarm unit and a power circuit unit. According to the breaker with the fault arc protecting and alarming functions, a current transformer collects current signals in electrical circuits of households or other places, the current signals are processed by a signal conditioning circuit and then sent to the microprocessor unit to be analyzed, and whether the present current meets the current characteristics during an arc fault is judged by analysis; if yes, it is judged that the arc fault occurs, a fault signal is sent out, and an alarm is given. The breaker has great significance in preventing fires caused by a fault arc.
Description
Technical field
The present invention relates to a kind of electronics, electric equipment safety guard, the circuit breaker that especially a kind of tape jam arc protection function is reported to the police.
Background technology
Along with the develop rapidly of economy and the raising of people's lives, power consumption is also in continuous increase.Electrical Safety, the fire comprising personal safety and prevent electric leakage or arc fault from causing, is day by day subject to people and payes attention to.The fire that arc fault causes accounts for more than 60% in all electrical fires, and therefore the attention degree of people to low-voltage electrical safety and electric arc fault protection improves gradually.
Electric arc is the continuous discharge phenomenon of crossing over certain dielectric between two electrodes, volatilizees in the local often along with electrode.Typical electric arc is formed in the airspace between yin, yang the two poles of the earth.Arc center's temperature is generally 5000 to 15000 degrees Celsius.The region that electric arc exists can produce very high ionization air pressure, causes electric arc all can be discharged hot gas and electrode substance particle Anywhere by what limit to.
Electric arc on circuit can be divided into two kinds, and one is normal operation arc, claims " good arc " another kind to be fault electric arc, claims " bad arc "." good arc " refers to the arc that motor rotation (as electric drill, dust catcher etc.) produces, and in addition when people's device for switching, the arc produced during plugging electric also belongs to " good arc "." bad arc " is fault electric arc, and fault electric arc generally results from two kinds of situations: 1. along insulator partially conductive surface; 2. two electrodes are closely resulted from.The former is heated for a long time due to insulator or contingency electric spark occurs, and causes insulating surface carbonization and forms arc channel; The latter runs into ground conduit due to electric conductor, or in a branch of conductor part by sharp-pointed metallic object insulation incised wound.In low pressure power and distribution supply cable, there are series arc faults, Line To Line arc fault and line arc fault over the ground.
Failure protecting device in traditional domestic circuit or other place can at electric wiring heavy overload; or open circuit when being short-circuited thus play a protective role; although but usually there is comparatively high peak in electric current when there is arc fault; but effective value possibility is also little, so traditional circuit failure protection device all cannot provide comprehensive protection to arc fault.
Summary of the invention
The technical problem to be solved in the present invention is to provide the circuit breaker that a kind of tape jam arc protection function is reported to the police, to solve the above-mentioned problems in the prior art.
For solving the problem, the circuit breaker that a kind of tape jam arc protection function of the present invention is reported to the police, comprising: signal gathering unit, microprocessor unit, alarm unit and power circuit unit; Signal gathering unit, for gathering the current signal in electric circuit; Whether microprocessor unit, is connected with signal gathering unit, for the signal that Received signal strength collecting unit collects, judges whether there is fault electric arc in circuit, and control to report to the police according to judged result; Described microprocessor unit has arc fault detection module; Alarm unit, is connected with microprocessor, reports to the police during for arc fault occurs in electric circuit, thus plays the effect of protective circuit; Power circuit unit, for providing power supply for signal gathering unit, microprocessor unit and alarm unit.
Adopt the circuit breaker that the tape jam arc protection function of structure of the present invention is reported to the police; the current signal in the electric wiring in family or other places is gathered by current transformer; send in microprocessor unit after signal conditioning circuit process and analyze; the feature of electric current when there is arc fault whether is met by analyzing the electric current judged at that time; if; then be judged as there occurs arc fault; and provide fault-signal; report to the police; for the fire taking precautions against fault electric arc initiation, be of great significance.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present invention.
Embodiment
In order to make those skilled in the art person understand technical solution of the present invention better, below in conjunction with drawings and embodiments, the present invention is described in further detail.
Those skilled in the art of the present technique are appreciated that unless expressly stated, and singulative used herein " ", " one ", " described " and " being somebody's turn to do " also can comprise plural form.Should be further understood that, the wording used in specification of the present invention " comprises " and refers to there is described feature, integer, step, operation, parts and/or assembly, but does not get rid of and exist or add other features one or more, integer, step, operation, parts, assembly and/or their group.Should be appreciated that, when we claim parts to be " connected " or " coupling " to another parts time, it can be directly connected or coupled to miscellaneous part, or also can there is intermediate member.Wording "and/or" used herein comprises one or more arbitrary unit listing item be associated and all combinations.
As shown in Figure 1, the present invention includes: signal gathering unit, microprocessor unit, alarm unit and power circuit unit; Signal gathering unit, for gathering the current signal in electric circuit; Whether microprocessor unit, is connected with signal gathering unit, for the signal that Received signal strength collecting unit collects, judges whether there is fault electric arc in circuit, and control to report to the police according to judged result; Described microprocessor unit has arc fault detection module; Alarm unit, is connected with microprocessor, reports to the police during for arc fault occurs in electric circuit, thus plays the effect of protective circuit; Power circuit unit, for providing power supply for signal gathering unit, microprocessor unit and alarm unit.
Preferably, described alarm unit comprises audible alarm module and/or light warning module.
It should be noted that, the present invention is when generation arc fault being detected, and non-severed circuit, but send warning, the reason why done like this is, electric arc there is certain probability, not all there is continuity, if occur an electric arc, or electric arc several times, with regard to power-off, likely affect use of powering normally, as carried out important meeting, carrying out the process etc. of vital document, therefore, take the mode of reporting to the police, prompting administrative staff manage, and situation about considering at that time makes the decision of whether power-off.
Preferably, described signal gathering unit comprises current transformer and signal conditioning circuit; This signal conditioning circuit is connected with microprocessor unit, amplifies, filtering for the current signal collected current transformer.
Preferably, described microprocessor unit has A/D modular converter, carries out analog-to-digital conversion for the current signal collected by current transformer.
Preferably; described protection device for arc faults also comprises test circuit, and this test circuit is connected with power circuit unit and microprocessor unit, can to microprocessor unit input test signal; alarm unit is caused to be reported to the police, for judging that whether protection device for arc faults is working properly.
It should be noted that, normal in order to ensure the function of the circuit breaker that tape jam arc protection function is reported to the police, can foregoing circuit be set, further ensures the realization of object of the present invention.
Described power circuit unit comprises Switching Power Supply and voltage conversion chip; Wherein Switching Power Supply is connected with test circuit with signal conditioning circuit; Voltage conversion chip is connected with Switching Power Supply and microprocessor unit.
Described power circuit unit comprises Switching Power Supply and voltage conversion chip, and wherein 220V alternating current is converted to positive and negative 5V power supply by Switching Power Supply, for signal conditioning circuit and test circuit are powered; The 5V exported in Switching Power Supply is converted to 3.3V power supply by voltage conversion chip, is microprocessor power supply.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. a circuit breaker for tape jam arc protection function warning, is characterized in that: comprising: signal gathering unit, microprocessor unit, alarm unit and power circuit unit; Signal gathering unit, for gathering the current signal in electric circuit; Whether microprocessor unit, is connected with signal gathering unit, for the signal that Received signal strength collecting unit collects, judges whether there is fault electric arc in circuit, and control to report to the police according to judged result; Described microprocessor unit has arc fault detection module; Alarm unit, is connected with microprocessor, reports to the police during for arc fault occurs in electric circuit, thus plays the effect of protective circuit; Power circuit unit, for providing power supply for signal gathering unit, microprocessor unit and alarm unit.
2. the circuit breaker of tape jam arc protection function warning according to claim 1, is characterized in that: described alarm unit comprises audible alarm module and/or light warning module.
3. the circuit breaker that tape jam arc protection function is reported to the police according to claim 1 or 2, is characterized in that: described signal gathering unit comprises current transformer and signal conditioning circuit; This signal conditioning circuit is connected with microprocessor unit, amplifies, filtering for the current signal collected current transformer.
4. the circuit breaker of tape jam arc protection function warning according to claim 3, is characterized in that: described microprocessor unit has A/D modular converter, carries out analog-to-digital conversion for the current signal collected by current transformer.
5. the circuit breaker of tape jam arc protection function warning according to claim 4; it is characterized in that: the circuit breaker that described tape jam arc protection function is reported to the police also comprises test circuit; this test circuit is connected with power circuit unit and microprocessor unit; can to microprocessor unit input test signal; alarm unit is caused to be reported to the police, for judging that whether protection device for arc faults is working properly.
6. the circuit breaker of tape jam arc protection function warning according to claim 5, is characterized in that: described power circuit unit comprises Switching Power Supply and voltage conversion chip; Wherein Switching Power Supply is connected with test circuit with signal conditioning circuit; Voltage conversion chip is connected with Switching Power Supply and microprocessor unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410436580.9A CN104242263A (en) | 2014-08-29 | 2014-08-29 | Breaker with fault arc protecting and alarming functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410436580.9A CN104242263A (en) | 2014-08-29 | 2014-08-29 | Breaker with fault arc protecting and alarming functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104242263A true CN104242263A (en) | 2014-12-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410436580.9A Pending CN104242263A (en) | 2014-08-29 | 2014-08-29 | Breaker with fault arc protecting and alarming functions |
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| Country | Link |
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| CN (1) | CN104242263A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106208027A (en) * | 2016-08-31 | 2016-12-07 | 天津市鸿远电气股份有限公司 | Fault electric arc detector |
Citations (7)
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|---|---|---|---|---|
| US6477021B1 (en) * | 1998-02-19 | 2002-11-05 | Square D Company | Blocking/inhibiting operation in an arc fault detection system |
| CN101395777A (en) * | 2006-03-01 | 2009-03-25 | 西门子能量及自动化公司 | Systems, devices, and methods for arc fault management |
| CN102565622A (en) * | 2010-09-29 | 2012-07-11 | 三星电子株式会社 | Electric device and method to detect arc fault in the same |
| CN103004047A (en) * | 2010-07-20 | 2013-03-27 | 西门子工业公司 | Systems and methods for providing arc fault and/or ground fault protection for distributed generation sources |
| CN203025274U (en) * | 2012-12-27 | 2013-06-26 | 天津市鸿远电气设备有限公司 | Arc fault protector detection device |
| CN103278734A (en) * | 2013-06-26 | 2013-09-04 | 浙江爱德电子有限公司 | Arc fault detection device and detection method thereof |
| CN204046153U (en) * | 2014-08-29 | 2014-12-24 | 天津市鸿远电气股份有限公司 | The circuit breaker that tape jam arc protection function is reported to the police |
-
2014
- 2014-08-29 CN CN201410436580.9A patent/CN104242263A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6477021B1 (en) * | 1998-02-19 | 2002-11-05 | Square D Company | Blocking/inhibiting operation in an arc fault detection system |
| CN101395777A (en) * | 2006-03-01 | 2009-03-25 | 西门子能量及自动化公司 | Systems, devices, and methods for arc fault management |
| CN103004047A (en) * | 2010-07-20 | 2013-03-27 | 西门子工业公司 | Systems and methods for providing arc fault and/or ground fault protection for distributed generation sources |
| CN102565622A (en) * | 2010-09-29 | 2012-07-11 | 三星电子株式会社 | Electric device and method to detect arc fault in the same |
| CN203025274U (en) * | 2012-12-27 | 2013-06-26 | 天津市鸿远电气设备有限公司 | Arc fault protector detection device |
| CN103278734A (en) * | 2013-06-26 | 2013-09-04 | 浙江爱德电子有限公司 | Arc fault detection device and detection method thereof |
| CN204046153U (en) * | 2014-08-29 | 2014-12-24 | 天津市鸿远电气股份有限公司 | The circuit breaker that tape jam arc protection function is reported to the police |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106208027A (en) * | 2016-08-31 | 2016-12-07 | 天津市鸿远电气股份有限公司 | Fault electric arc detector |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141224 |
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| RJ01 | Rejection of invention patent application after publication |