CN103489563A - Automatic safety discharging device and safety discharging method for demagnetizing equipment - Google Patents
Automatic safety discharging device and safety discharging method for demagnetizing equipment Download PDFInfo
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- CN103489563A CN103489563A CN201310446619.0A CN201310446619A CN103489563A CN 103489563 A CN103489563 A CN 103489563A CN 201310446619 A CN201310446619 A CN 201310446619A CN 103489563 A CN103489563 A CN 103489563A
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Abstract
The invention relates to an automatic safety discharging device and a safety discharging method for demagnetizing equipment. The automatic safety discharging device comprises a controller, a comparator, an equipment power voltage sampling circuit, a reference voltage generating circuit, an uninterruptible power supply, a switch and a discharging loop, wherein the discharging loop, the switch and an electric storage capacitor of the demagnetizing equipment are connected in series, the controller is connected with the comparator and the switch, the comparator is connected with the equipment power voltage sampling circuit and the reference voltage generating circuit, the equipment power voltage sampling circuit is connected with a power supply of the demagnetizing equipment and outputs sampled voltage to the comparator, the reference voltage generating circuit is connected with the uninterruptible power supply and outputs reference voltage to the comparator, the comparator compares the sampled voltage with the reference voltage and transmits signals to the controller to switch on the switch if the sampled voltage is lower than reference voltage, so that the capacitor is discharged, and the switch is switched off if the sampled voltage is higher than reference voltage. A demagnetizing device of the demagnetizing equipment and the automatic safety discharging device cannot mutually interfere, and the whole process can be automatically performed.
Description
Technical field
The invention belongs to the erasing discharge equipment technical field, particularly a kind of energy automatic safe discharges the apparatus and method of remaining capacity in Deperming Facility.
Background technology
The demagnetization principle of magnetic-based storage media Deperming Facility or title degausser is, with the capacitor that is full of electric charge, by discharge coil, discharges, and produces powerful exciting current on discharge coil, and then produces highfield.Because the voltage ratio of capacitor in Deperming Facility work is higher, and capacitor is energy-storage travelling wave tube, after electric discharge or due to certain fault or extremely can cause the electric charge on capacitor to bleed off fully, has electric leakage hidden danger, and this can cause Danger Electric shock risk to the user of service.
Summary of the invention
The object of the present invention is to provide a kind of automatic safe electric discharge device and safe-discharge method, can automatically the electric charge on the accumulate capacitor be forced to bleed off after the Deperming Facility outage, avoid causing electric leakage dangerous.
A kind of Deperming Facility automatic safe electric discharge device, is characterized in that comprising controller, comparator, device power supply (DPS) voltage sampling circuit, reference voltage generating circuit, uninterrupted power supply, switch and discharge loop; Described discharge loop, switch and Deperming Facility accumulate capacitor's series; Described controller is connected with comparator, switch, and controller receives signal from comparator, according to the connected sum of Signal-controlled switch, disconnects; Comparator is connected with reference voltage generating circuit with the device power supply (DPS) voltage sampling circuit; The device power supply (DPS) voltage sampling circuit is connected with the Deperming Facility power supply, can generate and export the sampled voltage of Deperming Facility power supply; Reference voltage generating circuit is connected with uninterrupted power supply, can generate and output reference voltage; Described automatic safe electric discharge device is powered by uninterrupted power supply, and the effect of uninterrupted power supply is to guarantee that the automatic safe electric discharge device can independent operation, the impact that not whether cut off the power supply by Deperming Facility itself.
Described discharge loop can be the discharge coil of resistance, semiconductor device or Deperming Facility inside.
Described switch can be semiconductor device or relay or triode or controllable silicon.
Use the safe-discharge method of this Deperming Facility to comprise the steps:
The first step: starting uninterrupted power supply is the device power supply
Second step: reference voltage generating circuit generates reference voltage and is transferred to comparator, and the device power supply (DPS) voltage sampling circuit generates the sampled voltage of device power supply (DPS) and is transferred to comparator simultaneously;
The 3rd step: sampled voltage and the reference voltage of comparator compare facilities power supply;
The 4th step: if the sampled voltage of device power supply (DPS) is less than or equal to reference voltage, comparator is to the controller signal transmission, and controller is controlled turn on-switch, and capacitor is communicated with electric discharge with discharge loop;
The 5th step: if the sampled voltage of device power supply (DPS) is greater than reference voltage, comparator is to the controller signal transmission, and controller is controlled cut-off switch, and capacitor is not communicated with discharge loop.
The output voltage of described uninterrupted power supply should be not more than 36 volts, and reference voltage should be not more than 36 volts, can guarantee when safe discharge device is realized safe-discharge itself can not cause Danger Electric shock risk.
After the Deperming Facility outage, generate sampled voltage and the reference voltage of device power supply (DPS) under the uninterrupted power supply powered operation, comparator compares two voltages, when the sampled voltage that device power supply (DPS) detected during lower than reference voltage, at this moment illustrate that the Deperming Facility power supply closes, no longer carry out demagnetization work, comparator feeds back signal to controller, the controller control switch is communicated with, and Deperming Facility accumulate capacitor and discharge loop is connected, thereby the residual charge in capacitor is discharged.If the Deperming Facility power supply is in "on" position, the sampled voltage of device power supply (DPS) is inevitable higher than reference voltage, controller is cut-off switch, do not discharged, at this moment Deperming Facility can carry out normal demagnetization action, can the phase mutual interference between the degaussing gear of Deperming Facility and automatic safe electric discharge device, all processes can carry out automatically, without manual intervention.
The present invention is simple in structure, realizes automatic discharging, avoids artificial mechanism operation problem, the problem includes: electric leakage, electric discharge can not wait problem, practical, safe and reliable.
The accompanying drawing explanation
Fig. 1, Deperming Facility automatic safe electric discharge device structural representation
Fig. 2, Deperming Facility automatic safe charging method schematic diagram
Embodiment
Fig. 1 and Fig. 2 are a kind of preferred implementations of the present invention, a kind of Deperming Facility is with the automatic safe electric discharge device and use the safe-discharge method of this device, and described automatic safe electric discharge device comprises controller 1, comparator 2, device power supply (DPS) voltage sampling circuit 7, reference voltage generating circuit 6, uninterrupted power supply 8, switch 3 and discharge loop 4; Described discharge loop 4, switch 3 are connected with Deperming Facility accumulate capacitor 5; Described controller 1 is connected with comparator 2, switch 3, and controller 1 receives signal from comparator 2, according to the connected sum of Signal-controlled switch 3, disconnects; Comparator 2 is connected with reference voltage generating circuit 6 with device power supply (DPS) voltage sampling circuit 7; Device power supply (DPS) voltage sampling circuit 7 is connected with Deperming Facility power supply 9, can generate and export the sampled voltage of Deperming Facility power supply; Reference voltage generating circuit 6 is connected with uninterrupted power supply 8, can generate and output reference voltage; Described automatic safe electric discharge device is by uninterrupted power supply 8 powered operations.Described discharge loop 4 can be the discharge coil of resistance, semiconductor device or Deperming Facility inside.Described switch 3 can be semiconductor device or relay or triode or controllable silicon.
Described Deperming Facility automatic safe charging method, step comprise:
The first step: start uninterrupted power supply 8 for the device power supply;
Second step: reference voltage generating circuit 6 generates reference voltage and is transferred to comparator 2, and device power supply (DPS) voltage sampling circuit 7 generates the sampled voltage of device power supply (DPS) and is transferred to comparator 2 simultaneously;
The 3rd step: sampled voltage and the reference voltage of comparator 2 compare facilities power supplys;
The 4th step: if the sampled voltage of device power supply (DPS) is less than or equal to reference voltage, comparator 2 is to controller 1 signal transmission, and controller 1 is controlled turn on-switch 3, and capacitor 5 is communicated with electric discharge with discharge loop 4;
The 5th step: if the sampled voltage of device power supply (DPS) is greater than reference voltage, comparator 2 is to controller 1 signal transmission, and controller 1 is controlled cut-off switch 3, and capacitor 5 is not communicated with discharge loop 4.
The output voltage of described uninterrupted power supply 8 is 36 volt-amperes of full voltages, and reference voltage is 36 volt-amperes of full voltages.
Claims (5)
1. a Deperming Facility automatic safe electric discharge device, is characterized in that comprising controller, comparator, device power supply (DPS) voltage sampling circuit, reference voltage generating circuit, uninterrupted power supply, switch and discharge loop; Described discharge loop, switch and Deperming Facility accumulate capacitor's series; Described controller is connected with comparator, switch, and controller receives signal from comparator, according to the connected sum of Signal-controlled switch, disconnects; Comparator is connected with reference voltage generating circuit with the device power supply (DPS) voltage sampling circuit; The device power supply (DPS) voltage sampling circuit is connected with the Deperming Facility power supply, can generate and export the sampled voltage of Deperming Facility power supply; Reference voltage generating circuit is connected with uninterrupted power supply, can generate and output reference voltage; Described automatic safe electric discharge device is powered by uninterrupted power supply.
2. Deperming Facility automatic discharge device according to claim 1, is characterized in that described discharge loop can be the discharge coil of resistance, semiconductor device or Deperming Facility inside.
3. Deperming Facility automatic discharge device according to claim 2, is characterized in that switch can be semiconductor device or relay or triode or controllable silicon.
4. a Deperming Facility safe-discharge method, right to use requires 3 described Deperming Facility automatic safe electric discharge devices, it is characterized in that comprising the steps:
The first step: starting uninterrupted power supply is the device power supply
Second step: reference voltage generating circuit generates reference voltage and is transferred to comparator, and the device power supply (DPS) voltage sampling circuit generates the sampled voltage of device power supply (DPS) and is transferred to comparator simultaneously;
The 3rd step: sampled voltage and the reference voltage of comparator compare facilities power supply;
The 4th step: if the sampled voltage of device power supply (DPS) is less than or equal to reference voltage, comparator is to the controller signal transmission, and controller is controlled turn on-switch, and capacitor is communicated with electric discharge with discharge loop;
The 5th step: if the sampled voltage of device power supply (DPS) is greater than reference voltage, comparator is to the controller signal transmission, and controller is controlled cut-off switch, and capacitor is not communicated with discharge loop.
5. Deperming Facility safe-discharge method according to claim 4, is characterized in that the output voltage of described uninterrupted power supply should be not more than 36 volts, and reference voltage should be not more than 36 volts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310446619.0A CN103489563B (en) | 2013-09-27 | 2013-09-27 | A kind of Deperming Facility automatic safe electric discharge device and safe-discharge method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310446619.0A CN103489563B (en) | 2013-09-27 | 2013-09-27 | A kind of Deperming Facility automatic safe electric discharge device and safe-discharge method |
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| CN103489563A true CN103489563A (en) | 2014-01-01 |
| CN103489563B CN103489563B (en) | 2015-12-02 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2006129671A (en) * | 2004-11-01 | 2006-05-18 | Sanyo Electric Co Ltd | Protective circuit |
| JP2009218964A (en) * | 2008-03-11 | 2009-09-24 | Sanyo Electric Co Ltd | Analog-digital conversion circuit and imaging apparatus mounted with the same |
| CN102136803A (en) * | 2010-01-21 | 2011-07-27 | 深圳市汇川技术股份有限公司 | Pulse width modulation frequency variable power supply and dead zone compensation method thereof |
| CN202454372U (en) * | 2012-01-09 | 2012-09-26 | 深圳市欣音达科技有限公司 | Magnetizing and demagnetizing circuit and magnetizing and demagnetizing machine |
| CN102868293A (en) * | 2012-09-10 | 2013-01-09 | 常州大学 | Slope compensating method and device of fixed turn-off time control switch converter |
| US20130188401A1 (en) * | 2012-01-20 | 2013-07-25 | Delta Electronics (Shanghai) Co., Ltd | Capacitor discharging circuit and converter |
| CN203466003U (en) * | 2013-09-27 | 2014-03-05 | 北京方德信安科技有限公司 | Automatic safe discharging device used for demagnetization equipment |
-
2013
- 2013-09-27 CN CN201310446619.0A patent/CN103489563B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006129671A (en) * | 2004-11-01 | 2006-05-18 | Sanyo Electric Co Ltd | Protective circuit |
| JP2009218964A (en) * | 2008-03-11 | 2009-09-24 | Sanyo Electric Co Ltd | Analog-digital conversion circuit and imaging apparatus mounted with the same |
| CN102136803A (en) * | 2010-01-21 | 2011-07-27 | 深圳市汇川技术股份有限公司 | Pulse width modulation frequency variable power supply and dead zone compensation method thereof |
| CN202454372U (en) * | 2012-01-09 | 2012-09-26 | 深圳市欣音达科技有限公司 | Magnetizing and demagnetizing circuit and magnetizing and demagnetizing machine |
| US20130188401A1 (en) * | 2012-01-20 | 2013-07-25 | Delta Electronics (Shanghai) Co., Ltd | Capacitor discharging circuit and converter |
| CN102868293A (en) * | 2012-09-10 | 2013-01-09 | 常州大学 | Slope compensating method and device of fixed turn-off time control switch converter |
| CN203466003U (en) * | 2013-09-27 | 2014-03-05 | 北京方德信安科技有限公司 | Automatic safe discharging device used for demagnetization equipment |
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| CN103489563B (en) | 2015-12-02 |
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