CN101964521A - Automatic identification converter for zero and fire wires of alternating-current power supply - Google Patents
Automatic identification converter for zero and fire wires of alternating-current power supply Download PDFInfo
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- CN101964521A CN101964521A CN200910183016XA CN200910183016A CN101964521A CN 101964521 A CN101964521 A CN 101964521A CN 200910183016X A CN200910183016X A CN 200910183016XA CN 200910183016 A CN200910183016 A CN 200910183016A CN 101964521 A CN101964521 A CN 101964521A
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- live wire
- fire
- circuit
- fire wire
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Abstract
The invention discloses an automatic identification converter for zero and fire wires of an alternating-current power supply. The automatic identification converter comprises a zero-fire wire induction and identification circuit, a photoelectric signal conversion and amplification circuit and a zero-fire wire converting device. The zero-fire wire induction and identification circuit is connected with the signal amplification circuit in a photoelectric conversion form; a suction coil of the zero-fire wire converting device is connected with the photoelectric signal conversion and amplification circuit; and the input end of the zero-fire wire induction and identification circuit is contacted with one wire in the alternating-current power supply input by a power grid through a high-resistance resistor. When the input end of the zero-fire wire induction and identification circuit is contacted with the zero wire of the alternating-current power supply wires and because no signal is input, two triodes are not switched on, a light-emitting diode is not lightened, the photoelectric signal conversion and amplification circuit does not work, the zero-fire wire converting device does not work, and the positions of the zero and fire wires in an electric appliance accord with the set requirements; and when the positions of the input zero and fire wires are reversed, a contact in the zero-fire wire induction and identification circuit induces an electrical signal of the fire wire, the electrical signal triggers the light-emitting diode to lighten and then the photoelectric conversion and amplification circuit is driven to work so as to drive the zero-fire wire converting device to work and switch the zero and fire wires to the corrected accurate positions.
Description
The present invention relates to a kind of AC power zero live wire conversion equipment, particularly relate to a kind of AC power zero automatic identification converter of live wire.
Background technology
AC power is made up of zero live wire, and many electrical appliances are to the special requirement that has access to of zero live wire, in case zero live wire connect instead, light then influence the performance and the useful life of electrical appliance, the serious entail dangers to personal safety of going back.The many electrical appliances of China all adopt two core plug at present, when the plug of electrical appliance inserts the electrical network socket, just can't determine whether the on-position of zero live wire is correct.Because present electrical appliance does not all have zero live wire and discerns conversion equipment automatically, thereby the zero live wire orientation problem for electrical appliance also can only be in the condition of having no way out.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of AC power zero automatic identification converter of live wire, use this transducer can discern the zero live wire position of inserting power supply automatically, and correctly change automatically, make the position of zero live wire in the circuit in the electrical appliance be in the tram of setting all the time, thereby improve the performance and the useful life of electrical appliance effectively, ensure the personal safety of electricity consumption better.
In order to solve above-mentioned technical problem, the present invention adopts following scheme: it comprises zero live wire induction identification circuit, photosignal converter amplifier circuit and zero live wire switching device.Described zero live wire induction identification circuit links to each other with signal amplification circuit by the opto-electronic conversion form; , the pull-in winding of described zero live wire switching device is connected with the photosignal converter amplifier circuit, and one of the input of described zero live wire induction identification circuit contacts with a line in the AC power that electrical network is imported by high resistance measurement.
Beneficial effect of the present invention: when the input of zero live wire induction identification circuit contacts with the zero line of AC power cord, owing to there is not the signal input, two not conductings of triode, light-emitting diode is not lighted, also make amplifying circuit work with regard to not causing the photosignal conversion, zero live wire switching device is failure to actuate, and the zero live wire position in the electrical appliance meets the requirement of setting.When the zero live wire of input is out of position, thereby live wire contacts with the input of zero live wire identification circuit and senses the signal of telecommunication, thereby trigger lumination of light emitting diode greatly, cause photoelectric conversion amplifier work, promote zero live wire switching device action, zero live wire switching is corrected to the position of setting, thereby makes the zero live wire position in the electrical appliance still meet the desirable requirement of setting.
Description of drawings
Fig. 1 is a circuit theory schematic diagram of the present invention
Embodiment
Referring to shown in Figure 1, it comprise zero live wire induction identification circuit 1., the photosignal converter amplifier circuit 2. and zero live wire switching device 3..Described zero live wire induction identification circuit is connected with signal amplification circuit with RL opto-electronic conversion form by LED; The pull-in winding J of described zero live wire switching device is connected with the photosignal converter amplifier circuit; The input of described zero live wire induction identification circuit is held by the line A in the AC power of high resistance measurement R1 and electrical network input and is contacted.
Claims (3)
1. an AC power zero automatic identification converter of live wire, it comprises zero live wire induction identification circuit, photosignal converter amplifier circuit and zero live wire switching device.Described zero live wire induction identification circuit is connected with signal amplification circuit by the opto-electronic conversion form; The pull-in winding of described zero live wire switching device is connected with the photosignal converter amplifier circuit; The input of described zero live wire induction identification circuit contacts with a line in the AC power that electrical network is imported by high resistance measurement.
2. a kind of AC power according to claim 1 zero automatic identification converter of live wire, its feature with: what described zero live wire transducer adopted is the two-way relay.
3. a kind of AC power according to claim 1 zero automatic identification converter of live wire, what wherein zero live wire induction identification circuit adopted is dry cell power supply, to avoid interference from outside signals.Optical signal amplification circuit then adopts the power supply of ac buck rectifier power source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910183016XA CN101964521A (en) | 2009-07-24 | 2009-07-24 | Automatic identification converter for zero and fire wires of alternating-current power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910183016XA CN101964521A (en) | 2009-07-24 | 2009-07-24 | Automatic identification converter for zero and fire wires of alternating-current power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101964521A true CN101964521A (en) | 2011-02-02 |
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ID=43517309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910183016XA Pending CN101964521A (en) | 2009-07-24 | 2009-07-24 | Automatic identification converter for zero and fire wires of alternating-current power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101964521A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102818370A (en) * | 2012-08-20 | 2012-12-12 | 美的集团有限公司 | Foot bath device |
| CN102820789A (en) * | 2012-08-20 | 2012-12-12 | 美的集团有限公司 | Alternating current zero and live wire identification conversion circuit |
| CN103378593A (en) * | 2012-04-20 | 2013-10-30 | 海洋王（东莞）照明科技有限公司 | Electric supply zero fire wire identification circuit |
| CN104184114A (en) * | 2013-05-21 | 2014-12-03 | 吴伟 | Live and null line adaptive correction method and system for electricity-leakage protective device |
| CN105717819A (en) * | 2016-04-22 | 2016-06-29 | 刘向荣 | Air purifier |
| CN105725738A (en) * | 2016-04-22 | 2016-07-06 | 刘向荣 | Electromagnetic rice steaming cabinet |
| CN106486998A (en) * | 2016-08-31 | 2017-03-08 | 崔剑 | A kind of L/N line input polarity identification change-over circuit |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86206840U (en) * | 1986-09-15 | 1988-02-10 | 徐日沾 | Electrical safety cut-off with distinguishing capacity between live wire and zero line |
| CN2116287U (en) * | 1991-12-29 | 1992-09-16 | 黑龙江省农业机械运用研究所 | Shockproof safety socket |
| CN2492970Y (en) * | 2001-06-26 | 2002-05-22 | 张发亮 | Electronic charging machine |
| CN1787308A (en) * | 2004-12-10 | 2006-06-14 | 鸿富锦精密工业（深圳）有限公司 | Protecting circuit for electrical equipment |
| CN201094174Y (en) * | 2007-05-17 | 2008-07-30 | 王凤山 | Power supply device eliminating electrical equipment electromagnetic radiation |
| CN201118195Y (en) * | 2007-11-15 | 2008-09-17 | 高子泉 | Live wire and zero line reverse connection automatic correcting device |
-
2009
- 2009-07-24 CN CN200910183016XA patent/CN101964521A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86206840U (en) * | 1986-09-15 | 1988-02-10 | 徐日沾 | Electrical safety cut-off with distinguishing capacity between live wire and zero line |
| CN2116287U (en) * | 1991-12-29 | 1992-09-16 | 黑龙江省农业机械运用研究所 | Shockproof safety socket |
| CN2492970Y (en) * | 2001-06-26 | 2002-05-22 | 张发亮 | Electronic charging machine |
| CN1787308A (en) * | 2004-12-10 | 2006-06-14 | 鸿富锦精密工业（深圳）有限公司 | Protecting circuit for electrical equipment |
| CN201094174Y (en) * | 2007-05-17 | 2008-07-30 | 王凤山 | Power supply device eliminating electrical equipment electromagnetic radiation |
| CN201118195Y (en) * | 2007-11-15 | 2008-09-17 | 高子泉 | Live wire and zero line reverse connection automatic correcting device |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103378593A (en) * | 2012-04-20 | 2013-10-30 | 海洋王（东莞）照明科技有限公司 | Electric supply zero fire wire identification circuit |
| CN102818370A (en) * | 2012-08-20 | 2012-12-12 | 美的集团有限公司 | Foot bath device |
| CN102820789A (en) * | 2012-08-20 | 2012-12-12 | 美的集团有限公司 | Alternating current zero and live wire identification conversion circuit |
| CN102818370B (en) * | 2012-08-20 | 2014-10-08 | 美的集团股份有限公司 | Lavipeditum device |
| CN102820789B (en) * | 2012-08-20 | 2014-12-17 | 美的集团股份有限公司 | Alternating-current zero line and firing line identification and conversion circuit |
| CN104184114A (en) * | 2013-05-21 | 2014-12-03 | 吴伟 | Live and null line adaptive correction method and system for electricity-leakage protective device |
| CN105717819A (en) * | 2016-04-22 | 2016-06-29 | 刘向荣 | Air purifier |
| CN105725738A (en) * | 2016-04-22 | 2016-07-06 | 刘向荣 | Electromagnetic rice steaming cabinet |
| CN105725738B (en) * | 2016-04-22 | 2017-12-05 | 刘向荣 | A kind of Nonradiative electromagnetic steam-cooking cabinet |
| CN106486998A (en) * | 2016-08-31 | 2017-03-08 | 崔剑 | A kind of L/N line input polarity identification change-over circuit |
| CN106486998B (en) * | 2016-08-31 | 2019-03-19 | 崔剑 | A kind of L/N line input terminal polarity identification conversion circuit |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110202 |