CN100454705C - Arc discharge protector - Google Patents
Arc discharge protector Download PDFInfo
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- CN100454705C CN100454705C CNB031574416A CN03157441A CN100454705C CN 100454705 C CN100454705 C CN 100454705C CN B031574416 A CNB031574416 A CN B031574416A CN 03157441 A CN03157441 A CN 03157441A CN 100454705 C CN100454705 C CN 100454705C
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- arc discharge
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- protective device
- arc
- discharge protective
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- 238000010891 electric arc Methods 0.000 title claims abstract description 55
- 230000001012 protector Effects 0.000 title abstract 3
- 230000000694 effects Effects 0.000 claims abstract description 18
- 230000009471 action Effects 0.000 claims abstract description 6
- 238000006243 chemical reaction Methods 0.000 claims abstract description 6
- 230000001681 protective effect Effects 0.000 claims description 29
- 238000012216 screening Methods 0.000 claims description 5
- 230000009466 transformation Effects 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 abstract description 3
- 230000002159 abnormal effect Effects 0.000 abstract 3
- 238000009825 accumulation Methods 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000032683 aging Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000001228 spectrum Methods 0.000 description 4
- 150000001450 anions Chemical class 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001795 light effect Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000011469 building brick Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 230000010358 mechanical oscillation Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The present invention relates to an arc discharge protector. When high voltage output intervals are in abnormal phenomena to generate arc discharge effect, high voltage arc discharge signals of the high voltage output interval are received by a voltage conversion unit through the arc discharge protector, and are converted into low voltage arc discharge signals; after a filtering unit provides judgment positions to sieve and detect abnormal frequency signals, a rectifying unit receives the abnormal frequency signals and carries out rectification to output an arc clutter; a contact control unit detects the arc clutter and output a triggering signal to make a control unit or a driving unit stop actions, so the present invention can avoid sparks or fire caused by heat accumulation during the arc discharge effect on peripheral part components generating.
Description
Technical field
The present invention relates to a kind of protective device, when the high pressure output interval when anomaly produces the arc discharge effect, this protective device can detect and trigger a controlling signal makes the high pressure output interval stop high pressure output.
Background technology
So-called " arc discharge " phenomenon is meant the voltage of increasing volt between two electrodes, and it is close at leisure them, two electrodes near to certain apart from the time, the electric spark that will occur similar arcuation between two electrodes, the lightning that the similar thundercloud of its situation is produced, only lightning is written in water, and the spark between the electrode can exist for a long time and form heat history.
In electronic circuit field; arc discharge usually can destroy the function of electronic building brick; cause the electronic circuit disruption of ecological balance; more serious; even can injure human life security; with conventional high-tension output loading device (as cold-cathode tube; anion generator; video mapping pipe etc.) be example; before load device is accepted high voltage; because of loose contact; when the part part breaking damages in ambient temperature and humidity variation or the electronic circuit; will produce aforementioned arc discharge phenomenon; therefore; how to produce arc discharge place installing arc discharge protective device to avoid the damage of load device; just become the emphasis direction of the anxious desire research and development of existing dealer; below be described at design that is applied in easy generation arc discharge at present and assembly; for example: traditional high-tension transformer; the increasing apparatus of ceramic-type piezoelectric transformer, the arc discharge protective device division that it used is as follows:
One; as shown in Figure 1; general high voltage transformer or ceramic-type transformer; because of the steady job frequency that itself exists; and provide a control frequency by control unit 11; what both were mutual alternately cooperates down; and between alternately, produce high volt alternating voltage; in addition at the output of boosting unit 13 because of loose contact or other not clear factor; produce fracture place or slight spacing; the arc discharge phenomenon is caused in the capital; the arc light phenomenon that is caused is in the high-voltage arc state; except the useful life of part around the direct influence; more affect indirectly load 14; therefore; usually the earth leakage protective device 30 of can arranging in pairs or groups; the leakage switch that short-circuit protection is installed by these earth leakage protective device 30 inside forms open circuit when discharge effect produces; but; this earth leakage protective device 30 only can be placed on the less plant equipment of vibration force usually; could guarantee to leave enough flashover distances at the electric arc emission direction; therefore; earth leakage protective device 30 should not be contained in the position that mechanical oscillation are big or alternating magnetic field is strong; and this earth leakage protective device 30 must be considered water installing also; the harm of factors such as dirt; and must take other extra necessary safeguard procedures; outside practicality was not good, installation cost did not meet economic benefit yet.
Two, as shown in Figure 2, be to be the boosting unit 13 that transformer was constituted in the piezoelectric patches mode, this boosting unit 13 comprises a transformer (piezoelectric patches) 131 and a circuit board 133, this transformer (piezoelectric patches) 131 and a circuit board 133 connect by a lead-in wire place 132, and circuit board 133 utilizes the plug assembly to form a splicing position 134 with load 14, with the circuit of inverter is example, the factor that produces the arc discharge effect has: the variation of (one) Yin Wendu and humidity, cause the fracture or the loose contact at lead-in wire place 132; (2) transformer (piezoelectric patches) 131 is because of aging or fault fracture; (3) the aging or use improperly of splicing position 134 causes producing between male plug and female seat a slight gap; (4) load 14 forms open-circuit condition, above factor all can allow the high voltage of output output the arc discharge signal occur, Fig. 2 utilizes arc light transfer 40 to accept to be directed to earth terminal behind the arc discharge signal, but this device can not be got rid of whole arc discharge signals, so can't control the action of entire circuit, so still can be because of loose contact at boosting unit 13, humiture variation etc., residual arc discharge signal is arranged, and in conduction ground connection process, the circuit board 133 of transformer (piezoelectric patches) 131 windings discharges because of transformer (piezoelectric patches) 131 continues to boost and still has the arc light effect, causes its heat history or spark to cause and burns the thing generation.
Can understand by above-mentioned explanation; existing arc discharge protective device can not prevent the arc discharge effect fully; and institute is restricted many again; purposes is not extensive; therefore the present invention visualizes a complete arc discharge protective device, when the dangerous situation of this kind takes place, entire circuit can be stopped; preventing that circuit board or other electronic component from causing damage because of the arc light effect, thereby effectively avoid the arc discharge effect.
Summary of the invention
When the high pressure output interval produced the arc discharge effect in anomaly, protective device of the present invention can detect and trigger a controlling signal made the high pressure output interval stop high pressure output.
When the high pressure output interval produces the arc discharge effect in anomaly; commentaries on classics by arc discharge protective device of the present invention changes into low-tension arc light discharge signal after pressing the unit to receive the high-tension arc light discharge signal of high pressure output interval; and by filter unit provide judge that the position is accurate and go out improper frenquency signal with screening after; output one arc light clutter after receiving improper frenquency signal and carry out rectification by rectification unit; detecting the arc light clutter by touch control unit again and exporting a trigger signals makes control unit or driver element stop action; thereby the spark when avoiding the arc discharge effect that peripheral spare part is caused heat history or burn thing and take place; therefore; the present invention directly judges with logical circuit whether the arc discharge situation produces; and interrupt the high pressure output interval when producing immediately, the part assembly cost is lower and more meet economic benefit.
To achieve these goals, the invention provides a kind of arc discharge protective device, be used to avoid the high pressure output interval in arc discharge effect that anomaly produced, this high pressure output interval comprises that one provides the power subsystem 10 of power supply input, one provides the control unit 11 of voltage distribution signal, one receives power supply and voltage distribution signal and makes the driver element 12 of voltage transitions, one reception conversion back voltage and transformation are the boosting unit 13 of high pressure, an and load 14 that is connected to the high-voltage output end of boosting unit 13, arc discharge protective device of the present invention also comprises: one changes pressure unit 21, and the high-tension arc light discharge signal that reception high pressure output interval disengages also changes into low-tension arc light discharge signal; One filter unit 22, receiving changes the low-tension arc light discharge signal of pressing unit 21, and provides one to judge that the accurate 2d screening in position goes out an improper frenquency signal 2c; One rectification unit 23, the improper frenquency signal 2c of the unit 22 that accepts filter also carries out rectification, and exports an arc light clutter after rectification; One touch control unit 24, detecting arc light clutter is also exported a trigger signals and is made control unit 11 or driver element 12 stop action and avoid the arc discharge effect.
Description of drawings
Fig. 1 is the structural map of existing earth leakage protective device.
Fig. 2 is the structural map of existing arc light transfer.
Fig. 3 uses the circuit process block diagram of low pass filter for the present invention.
Fig. 4 is the spectrum diagram of Fig. 3.
Fig. 5 uses the circuit process block diagram of high pass filter for the present invention.
Fig. 6 is the spectrum diagram of Fig. 5.
Fig. 7 refuses the circuit process block diagram of filter for the present invention uses band.
Fig. 8 is the spectrum diagram of Fig. 7.
Embodiment
About preferred embodiment of the present invention and technology contents, existing accompanying drawings is as follows:
As shown in Figure 3; arc discharge protective device 20 proposed by the invention; be used to avoid the high pressure output interval in arc discharge effect that anomaly produced; aforesaid high pressure output interval comprises that one provides the power subsystem 10 of power supply input; one provides the control unit 11 of voltage distribution signal; one receives aforementioned power source and voltage distribution signal and makes the driver element 12 of voltage transitions; one to receive aforementioned conversion back voltage and transformation be that the boosting unit 13 and of high pressure is connected to the load 14 of the high-voltage output end of aforementioned boosting unit 13 (this load 14 is meant the electronic product that utilizes high drive, can be cold-cathode tube; anion generator etc.).(the power supply input of this high pressure output interval, voltage distribution, conversion transformation and high drive principle have belonged to existing, and so non-genus technical characterictic of the present invention will be following will repeating no more.)
Arc discharge protective device 20 of the present invention mainly has one and receives the high-tension arc light discharge signal that above-mentioned high pressure output interval disengages; include a transformer 131 and a circuit board 133 is an example with the boosting unit 13 of present embodiment; producing arc discharge effect point includes: transformer 131 (when it ruptures); (lead-in wire place 132 is because of temperature at the lead-in wire place 132 of transformer 131 and circuit board 133; when humidity etc. cause aging the fracture); the splicing position 134 of circuit board 133 and load 14 (because of the aging of splicing position 134 or use institute to cause producing between male plug and female seat a slight gap improperly); when above factor produces; the high pressure output interval promptly can produce a high-tension arc light discharge signal; at this moment; change into a low-tension arc light discharge signal after utilizing the commentaries on classics of a group bleeder circuit that impedance component is formed to press unit 21 to receive above-mentioned high-tension arc light discharge signal; receive the low-tension arc light discharge signal that unit 21 is pressed in above-mentioned commentaries on classics with a filter unit 22 again; and provide one to judge that the accurate 2d screening in position goes out an improper frenquency signal 2c; and this improper frenquency signal 2c will be received and carry out rectification by the rectification unit 23 of diode and rectification circuit that electric capacity is formed; and output one arc light clutter after rectification; and after this arc light clutter was subjected to touch control unit 24 detectings for thyristor or flip-flop, touch control unit 24 will export a trigger signals made control unit 11 or driver element 12 stop to move and avoiding the arc discharge effect.
Above-mentioned filter unit can be a low pass filter 22a (Low Pass Filter), high pass filter 22b (High Pass Filter) or refuse filter 22c (Band Reject Filter) by the band that low pass filter 22a and high pass filter 22b are combined to form, Fig. 3,5,7 represent its circuit schematic flow sheet respectively, Fig. 4,6, express respectively the spectrum diagram of this embodiment (longitudinal axis is a wave amplitude for 8, transverse axis is a frequency), under normal high pressure output interval operating state, except high-pressure work frequency 2a, still having part clutter 2b produces, at this moment, the accurate 2d in judgement position that filter unit 22 provides, clutter 2b can be carried out screening, make its output waveform and efficient can keep certain benchmark.
If the arbitrary position of above-mentioned high pressure output interval is because of damaging or fracture, allow load 14 be subjected to high drive and cause the arc discharge phenomenon, at this moment, surpass filter unit 22 and judge that the improper frenquency signal 2c of the accurate 2d in position will enter rectification unit 23 by filter unit 22, after this moment, rectification unit 23 was the arc light clutter with this improper frenquency signal 2c rectification, can send trigger signals by touch control unit 24 detectings allows control unit 11 or driver element 12 stop action in real time, whole high pressure output interval stops high pressure conversion and output certainly immediately, therefore can not produce the arc discharge effect again, peripheral spare part does not have heat history or spark certainly yet, can guarantee therefore that it does not have to burn dangerous the generation.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within the claim scope of the present invention.
Claims (9)
1. arc discharge protective device; be used to avoid the high pressure output interval in arc discharge effect that anomaly produced; described high pressure output interval comprises that one provides the power subsystem (10) of power supply input; one provides the control unit (11) of voltage distribution signal; one receives described power supply and voltage distribution signal and makes the driver element (12) of voltage transitions; described conversion back voltage of one reception and transformation are the boosting unit (13) of high pressure; and a load (14) that is connected to the high-voltage output end of described boosting unit (13), it is characterized in that described arc discharge protective device also comprises:
One change to press unit (21), receives the high-tension arc light discharge signal that described high pressure output interval disengages and changes into low-tension arc light discharge signal;
One filter unit (22) receives the low-tension arc light discharge signal that unit (21) is pressed in described commentaries on classics, and provides one to judge that accurate (2d) screening in position goes out an improper frenquency signal (2c);
One rectification unit (23) receives the described improper frenquency signal (2c) of described filter unit (22) and carries out rectification, and exports an arc light clutter after rectification;
One touch control unit (24) is detected described arc light clutter and is exported a trigger signals and makes described control unit (11) or described driver element (12) stop action and avoid the arc discharge effect.
2. arc discharge protective device according to claim 1 is characterized in that, described filter unit (22) is a low pass filter (22a).
3. arc discharge protective device according to claim 1 is characterized in that, described filter unit (22) is a high pass filter (22b).
4. arc discharge protective device according to claim 1 is characterized in that, described filter unit (22) is that a band that is combined to form by low pass filter (22a) and high pass filter (22b) is refused filter (22c).
5. arc discharge protective device according to claim 1 is characterized in that, described commentaries on classics presses unit (21) to utilize a group impedance component to form bleeder circuit.
6. arc discharge protective device according to claim 1 is characterized in that, the rectification circuit that described rectification unit (23) is made up of diode and electric capacity.
7. arc discharge protective device according to claim 1 is characterized in that, described touch control unit (24) is a thyristor.
8. arc discharge protective device according to claim 1 is characterized in that, described touch control unit (24) is a flip-flop.
9. arc discharge protective device according to claim 1 is characterized in that, described boosting unit (13) includes a transformer (131) and a circuit board (133).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031574416A CN100454705C (en) | 2003-09-19 | 2003-09-19 | Arc discharge protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031574416A CN100454705C (en) | 2003-09-19 | 2003-09-19 | Arc discharge protector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1599171A CN1599171A (en) | 2005-03-23 |
| CN100454705C true CN100454705C (en) | 2009-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031574416A Expired - Fee Related CN100454705C (en) | 2003-09-19 | 2003-09-19 | Arc discharge protector |
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| Country | Link |
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| CN (1) | CN100454705C (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5418463A (en) * | 1993-11-24 | 1995-05-23 | At&T Corp. | Detection of arcs in power cables using plasma noise or negtive resistance of the arcs |
| US6115230A (en) * | 1998-02-03 | 2000-09-05 | Trion, Inc. | Method and apparatus for detecting arcs and controlling supply of electrical power |
| US6229679B1 (en) * | 1998-12-15 | 2001-05-08 | Macbeth Bruce F. | Arc fault circuit interrupter without DC supply |
| CN2545671Y (en) * | 2002-05-22 | 2003-04-16 | 新巨企业股份有限公司 | Improved high-voltage driving device |
-
2003
- 2003-09-19 CN CNB031574416A patent/CN100454705C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5418463A (en) * | 1993-11-24 | 1995-05-23 | At&T Corp. | Detection of arcs in power cables using plasma noise or negtive resistance of the arcs |
| US6115230A (en) * | 1998-02-03 | 2000-09-05 | Trion, Inc. | Method and apparatus for detecting arcs and controlling supply of electrical power |
| US6229679B1 (en) * | 1998-12-15 | 2001-05-08 | Macbeth Bruce F. | Arc fault circuit interrupter without DC supply |
| CN2545671Y (en) * | 2002-05-22 | 2003-04-16 | 新巨企业股份有限公司 | Improved high-voltage driving device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1599171A (en) | 2005-03-23 |
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Granted publication date: 20090121 Termination date: 20091019 |