CN102087906B - Magnetizing apparatus non-magnetizing alarm device and magnetizing apparatus with same - Google Patents
Magnetizing apparatus non-magnetizing alarm device and magnetizing apparatus with same Download PDFInfo
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- CN102087906B CN102087906B CN200910241445.8A CN200910241445A CN102087906B CN 102087906 B CN102087906 B CN 102087906B CN 200910241445 A CN200910241445 A CN 200910241445A CN 102087906 B CN102087906 B CN 102087906B
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Abstract
The invention discloses a magnetizing apparatus non-magnetizing alarm device. A current transformer is connected in series between a magnetizing power supply and a magnetizing coil and is connected with a current detector; the current detector is connected with a comparator; the comparator is connected with a trigger; the trigger is connected with a magnetizing button; the magnetizing button is connected with the magnetizing power supply; when the magnetizing button is pressed, a magnetizing signal is transmitted to the magnetizing power supply and a trigger electric signal is transmitted to the trigger; a time signal of width t is output to the comparator by the trigger; when the magnetizing signal is detected by the current detector, an electric signal of width ti is output to the comparator; the comparator waits for the ti signal from the current detector in a time t from the trigger; and the comparator timely sends out an alarm signal when not receiving the ti signal from the current detector in the time t. According to the invention, an alarm can be timely sent out to prompt failure of magnetizing action when a magnetizing fault occurs, so that the quality consistency of an entire batch of products can be improved.
Description
Technical field
The present invention relates to the non-magnetizing alarm device of a kind of magnet charger.The invention still further relates to a kind of magnet charger with non-magnetizing alarm device.
Background technology
At present, in the magnetic charging system for sintered NdFeB product, discharge loop almost all uses high speed thyristor device, instantaneously, the process of discharge and recharge continually, the thyristor of magnet charger power supply is very easily damaged.Also very easily make magnetizing coil produce high heat, thus burn the copper cash in coil, cause coil open circuit or open circuit.No matter which kind of situation, all cannot continue realization and to magnetize discharge process.
In addition, in double magnetic charging system, if the electric energy magnetized in power supply energy storage capacitor is wherein after a coil discharge, then continues accumulation of energy and need the regular hour.Within this time, press the button that magnetizes and magnetize, operation i.e. failure.
But these are all None-identifieds from operation of magnetizing.Therefore, the product do not magnetized may be made to be mixed in the product magnetized and to be not easy to be found.Even if found, also often more late, need absolutely to sort from large batch of product.
Summary of the invention
An object of the present invention is to provide the non-magnetizing alarm device of a kind of magnet charger, when occurring magnetizing fault, can and alarm, point out the product magnetizing baulk of magnetizing, thus the quality conformance of entire block can be improved.
Another object of the present invention is to provide a kind of magnet charger with non-magnetizing alarm device, and it can be monitored and carry out saturation magnetization to sintered NdFeB finished product or other products and whether realize
For this reason, according to an aspect of the present invention, provide the non-magnetizing alarm device of a kind of magnet charger, it is characterized in that, at the series current instrument transformer between power supply and magnetizing coil that magnetizes, this current transformer is connected with current detector, current detector is connected with comparator, comparator is connected with trigger, trigger is connected with the button that magnetizes, the button that magnetizes is connected with the power supply that magnetizes, press when magnetizing button, to magnetizing, power supply sends the signal that magnetizes, send the triggering signal of telecommunication to trigger simultaneously, it is that the time signal of t is to comparator that trigger exports a width, can export a width when current detector detects and magnetizes signal is that the signal of telecommunication of ti is to comparator, comparator is from the ti signal waited in the t time of trigger from current detector, after comparator receives ti signal within the t time, circuit reset, this end cycle, wait for the next cycle, when comparator does not receive the ti signal from current detector within the t time, comparator sends alarm signal immediately.
According to another aspect of the present invention, provide a kind of magnet charger with non-magnetizing alarm device, comprise magnetize power supply and magnetizing coil, it is characterized in that, to magnetize electric current Comparison Circuit magnetizing to arrange between power supply and magnetizing coil, if detect do not had pulse current to flow into magnetizing coil, then warning of not magnetizing.
According to the present invention, when occurring magnetizing fault, can and alarm, point out the product magnetizing baulk of magnetizing, thus the quality conformance of entire block can be improved.
Accompanying drawing explanation
Fig. 1 is the principle schematic of the non-magnetizing alarm device of magnet charger according to the present invention.
Embodiment
Press when magnetizing button 70, send the signal that magnetizes to magnet charger 100, send the signal of telecommunication of trigger flip-flops 60 simultaneously, it is that the time signal of " t " is to comparator 50 that trigger 60 exports a width.When magnet charger 100 magnetizes, export big current, high-tension electric current to magnetizing coil 20.Being connected on the current detector 40 magnetized between power supply 10 and magnetizing coil 20, can export a width when detecting and magnetizing signal be that the signal of telecommunication of " ti " is to comparator 50.Comparator 50 waits for " ti " signal from current detector 40 at " t " from trigger 60 in the time, when comparator 50 is after " t " receives " ti " signal in the time, and circuit reset, this end cycle, waits for the next cycle; When comparator 50 does not receive " ti " signal from current detector 40 at " t " in the time, comparator 50 sends alarm signal immediately, and alarm lamp 80 is bright, alarming horn 90 pronounces.Increase this device in unicoil magnetic charging system after, verify.
magnetize power failure:if the thyristor of magnet charger 100 damages, press the Action Button 70 that magnetizes, magnet charger 100 is received electric discharge order but cannot be realized discharging action, therefore, does not have electric current to produce in magnetizing coil 20 and the connection line of the power supply 10 that magnetizes.Current transformer 30 cannot detect current value, cannot export ti in current detector 40; Meanwhile, the button 70 that magnetizes sends another road signal, starts trigger 60, produces an electric current output and is sent in comparator 50, and keep the t time long, wait for the arrival of ti signal in comparator 50; And due to ti signal not inflow within the t time in this case, then trigger alarm loudspeaker 90 and alarm lamp 80, reports to the police.
magnetizing coil fault:when magnetizing coil 20, or the circuit of connecting coil, when there is open circuit or open circuit, press the button 70 that magnetizes, drive the power supply 10 that magnetizes to discharge, the energy storage release in electric capacity, heavy current is provided to coil, due to connection line or the open circuit of coil copper cash, in current transformer 30, cannot electric current be detected, just cannot to input signal in current detector 40.Meanwhile, the button 70 that magnetizes drives trigger 60 to send current signal ti, and maintains duration t in comparator 50, and in t duration, wait for the signal ti exported from current detector 40.And due to fault, ti signal does not arrive comparator 50, then drive alarming horn 90 and alarm lamp 80.
the power source charges that magnetizes thermal energy storage process does not complete and carries out operation of magnetizing:the power supply that magnetizes can carry protective device, and when capacitance energy storage does not complete, press button 70 discharging action that magnetizes and just can not implement, instrument transformer 30 can not collect the electric current in circuit, and ti value does not have; Meanwhile, the button 70 that magnetizes drives trigger 60, in the t time is long, send current signal to comparator 50, waits for the current signal that current detector 40 sends.If there is no ti value, just drive alarming horn 90 and alarm lamp 80, report to the police.
Claims (2)
1. the non-magnetizing alarm device of magnet charger, it is characterized in that, at the series current instrument transformer between power supply and magnetizing coil that magnetizes, this current transformer is connected with current detector, current detector is connected with comparator, comparator is connected with trigger, trigger is connected with the button that magnetizes, the button that magnetizes is connected with the power supply that magnetizes, press when magnetizing button, to magnetizing, power supply sends the signal that magnetizes, send the triggering signal of telecommunication to trigger simultaneously, it is that the time signal of t is to comparator that trigger exports a width, can export a width when current detector detects and magnetizes signal is that the signal of telecommunication of ti is to comparator, comparator is from the ti signal waited in the t time of trigger from current detector, after comparator receives ti signal within the t time, circuit reset, this end cycle, wait for the next cycle, when comparator does not receive the ti signal from current detector within the t time, comparator sends alarm signal immediately.
2. the non-magnetizing alarm device of magnet charger as claimed in claim 1, is characterized in that, alarm signal is that alarm lamp is bright, alarming horn pronunciation, or alarm lamp bright while alarming horn pronunciation.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410569283.1A CN104282408B (en) | 2009-12-08 | 2009-12-08 | The magnet charger of the non-magnetizing alarm device of magnet charger and the non-magnetizing alarm device of band |
| CN200910241445.8A CN102087906B (en) | 2009-12-08 | 2009-12-08 | Magnetizing apparatus non-magnetizing alarm device and magnetizing apparatus with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910241445.8A CN102087906B (en) | 2009-12-08 | 2009-12-08 | Magnetizing apparatus non-magnetizing alarm device and magnetizing apparatus with same |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410569283.1A Division CN104282408B (en) | 2009-12-08 | 2009-12-08 | The magnet charger of the non-magnetizing alarm device of magnet charger and the non-magnetizing alarm device of band |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102087906A CN102087906A (en) | 2011-06-08 |
| CN102087906B true CN102087906B (en) | 2015-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910241445.8A Active CN102087906B (en) | 2009-12-08 | 2009-12-08 | Magnetizing apparatus non-magnetizing alarm device and magnetizing apparatus with same |
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| Country | Link |
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| CN (1) | CN102087906B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104282408A (en) * | 2009-12-08 | 2015-01-14 | 三环瓦克华（北京）磁性器件有限公司 | Magnetizing machine non-magnetizing alarm device and magnetizing machine with same |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103731775B (en) * | 2013-12-20 | 2017-01-11 | 苏州恒听电子有限公司 | Difference magnetizing mechanism |
| CN109085419B (en) * | 2018-09-07 | 2023-09-29 | 诸暨意创磁性技术有限公司 | Magnetizing peak current measuring method and device for magnetizing machine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5105182A (en) * | 1990-02-15 | 1992-04-14 | Mitsubishi Denki K.K. | Direct current power supply device having an alarm provided for power failure under varying load conditions |
| CN2569303Y (en) * | 2002-08-26 | 2003-08-27 | 南京大学 | Magnetizing and demagnetizing controller for magnetic bench of machine tool |
| CN2645313Y (en) * | 2003-08-23 | 2004-09-29 | 黄敬党 | Electric generator exciting arrangement |
| CN1979701A (en) * | 2006-11-09 | 2007-06-13 | 哈尔滨工业大学 | Quantitative demagnetization processing system of radial multi-pole magnetic ring and detection method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4826836B2 (en) * | 2008-12-15 | 2011-11-30 | 株式会社島津製作所 | Automatic demagnetizing coil adjuster for ships |
-
2009
- 2009-12-08 CN CN200910241445.8A patent/CN102087906B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5105182A (en) * | 1990-02-15 | 1992-04-14 | Mitsubishi Denki K.K. | Direct current power supply device having an alarm provided for power failure under varying load conditions |
| CN2569303Y (en) * | 2002-08-26 | 2003-08-27 | 南京大学 | Magnetizing and demagnetizing controller for magnetic bench of machine tool |
| CN2645313Y (en) * | 2003-08-23 | 2004-09-29 | 黄敬党 | Electric generator exciting arrangement |
| CN1979701A (en) * | 2006-11-09 | 2007-06-13 | 哈尔滨工业大学 | Quantitative demagnetization processing system of radial multi-pole magnetic ring and detection method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104282408A (en) * | 2009-12-08 | 2015-01-14 | 三环瓦克华（北京）磁性器件有限公司 | Magnetizing machine non-magnetizing alarm device and magnetizing machine with same |
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| Publication number | Publication date |
|---|---|
| CN102087906A (en) | 2011-06-08 |
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