CN203774757U - Ignition detecting circuit of oil smoke purifying device - Google Patents
Ignition detecting circuit of oil smoke purifying device Download PDFInfo
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- CN203774757U CN203774757U CN201420127986.4U CN201420127986U CN203774757U CN 203774757 U CN203774757 U CN 203774757U CN 201420127986 U CN201420127986 U CN 201420127986U CN 203774757 U CN203774757 U CN 203774757U
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- 239000003517 fume Substances 0.000 claims description 49
- 238000001514 detection method Methods 0.000 claims description 16
- 238000004804 winding Methods 0.000 claims description 10
- 230000008859 change Effects 0.000 abstract description 5
- 230000003068 static effect Effects 0.000 abstract description 5
- 230000010355 oscillation Effects 0.000 abstract 3
- 230000002159 abnormal effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
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- 238000000746 purification Methods 0.000 description 7
- 239000003990 capacitor Substances 0.000 description 6
- 230000006870 function Effects 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- XTWZHJXJIIUEJP-UHFFFAOYSA-N 4-acetamidobenzoic acid;2-(dimethylamino)ethanol Chemical compound CN(C)CCO.CC(=O)NC1=CC=C(C(O)=O)C=C1 XTWZHJXJIIUEJP-UHFFFAOYSA-N 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
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- 239000012535 impurity Substances 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005686 electrostatic field Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000008571 general function Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000006233 lamp black Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
Provided is an ignition detecting circuit of an oil smoke purifying device. The ignition detecting circuit comprises a control unit, a driving unit, a main oscillation loop, a high-voltage transformer, and a high-voltage static output loop, and is characterized in that the input end of an ignition protection unit is connected with the second primary input coil of the high-voltage transformer, that the continuous pulse ignition detecting end and the intermittent pulse ignition detecting end of the ignition protection unit are connected with the feedback end of the control end, that the control output end of the control unit is connected with the input end of the driving unit, that the output end of the driving unit is connected with the input end of the main oscillation loop, that the output end of the main oscillation loop is connected with first primary input coil of the high-voltage transformer, and that the output end of the high-voltage transformer is connected with the input end of the high-voltage static output loop. A group of primary input coils and the ignition protection unit are added in the high-voltage transformer, so by detecting voltage change values generated by continuous ignition and intermittent ignition, a purpose of accurately determining ignition types and the number of ignitions is achieved and fire hazards caused by abnormal ignitions are effectively prevented.
Description
Technical field
The utility model relates to a kind of fume purifier of fume, particularly the arcing detection circuit of a kind of kitchen high-voltage static flue gas removing purifier.
Background technology
The a large amount of high concentration oil smoke that produce in the food cooking course of processing, are directly free in overhead, city after discharge for a long time, are directly threatening city dweller's health.In order to reduce the pollution of cooking fume to environment, range hood for kitchen is conventionally all with cooking fume remover.In prior art, mode for fume purifying generally has following several: mechanical type cooking fume remover, water mist sprinkling formula cooking fume remover and electrostatic oil fume deaner, wherein, electrostatic technique, because it has higher purification efficiency, can be removed most of oil smoke, and, electrostatic oil and smoke cleaner simple in structure, fume-exhausting efficiency is high and energy consumption is low, therefore, is used in more and more widely in various cooking fume control equipments.
The technical method of removing on the market at present oil smoke is varied, adopts the mode of high-pressure electrostatic removal oil smoke technology or static and other oil smoke removal Combination of Methods more effective.The operation principle of electrostatic oil fume deaner is to utilize high-voltage electrostatic field, by the gas ionization between electrode, makes trickle flue dust and mist of oil colloidal solid charged, thereby can be adhered on plate electrode, reaches the object that high-efficient oil smoke purifies.
Conventionally, High-voltage electrostatic purification device internal placement has two metal discharge ends, when two discharge end interplanar distances cause for some reason pitch smaller or have other Filled Dielectrics, the lasting sparking of electrostatic equipment very easily occurs, and causes the hidden danger of breaking out of fire.In addition, when two electric discharges have on end faces impurity to cover, clearance-type also easily occurring and frequently strike sparks,, also there is disaster hidden-trouble in the easy catching fire that is heated after repeatedly striking sparks of the impurity on electric discharge end face.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned prior art present situation, to provide a kind of metal discharge end that can effectively avoid fume purifier of fume because of so continue the arcing detection circuit of sparking or the frequent sparking of clearance-type.
The utility model solves the problems of the technologies described above adopted technical scheme: a kind of arcing detection circuit of fume purifier of fume, include control unit, driver element, the main loop that shakes, high-tension transformer and high-pressure electrostatic output loop, it is characterized in that: described high-tension transformer includes the first elementary input coil and the second elementary input coil, the second elementary input coil of described high-tension transformer is connected with a sparking protected location, described Protection of arcing unit includes input and test side, the test side of described Protection of arcing unit includes continuation pulse igniting test side and intermittence pulse igniting test side, the second elementary input coil of the input of described Protection of arcing unit and described high-tension transformer is connected, described control unit includes feedback end and control output end, the continuation pulse igniting test side of described Protection of arcing unit is connected with the feedback end of described control unit respectively with intermittence pulse igniting test side, the control output end of described control unit is connected with the input of described driver element, the shake input in loop of the output of described driver element and described master is connected, the shake output in loop and the first elementary input coil of described high-tension transformer of described master is connected, and the output of described high-tension transformer is connected with the input of described high-pressure electrostatic output loop.
As preferably, it is core that the four-operational amplifier that model is LM324 be take in described Protection of arcing unit, described four-operational amplifier includes 14 pins, the first pin of described four-operational amplifier is connected with the positive pole of the 6th diode, negative pole one tunnel of the 6th diode is connected with the negative pole of the 5th diode, another road is through 17 resistance and 18 grounding through resistances of series connection successively, and the 7th pin of the positive pole of the 5th described diode and described four-operational amplifier is connected, the second pin one tunnel the 16 resistance of described four-operational amplifier is connected with DC power anode, and another road is through 14 resistance and 15 grounding through resistances of series connection successively, three-prong one tunnel of described four-operational amplifier and the 6th pin of this four-operational amplifier are connected, another Lu Jing tetra-capacity earths, the 4th pin of described four-operational amplifier is connected with described DC power anode, the 5th pin of described four-operational amplifier is through described the 15 grounding through resistance, the 8th pin one tunnel of described four-operational amplifier through successively serial connection the 11 resistance and the 3rd electric capacity after ground connection, another road through successively serial connection the tenth resistance and the 9th resistance after ground connection, the 9th pin of described four-operational amplifier is divided into three tunnels, the first via is connected with described DC power anode after the second resistance, the second tunnel is ground connection after the 3rd resistance, Third Road through the first electric capacity Hou Yi road again through the second capacity earth, another road is connected with the positive pole of the 3rd diode, the positive pole of the positive pole of described the 3rd diode the again with four diode is connected, the negative pole of the 3rd diode is connected with the positive pole of the first diode, the negative pole of described the 4th diode is connected with the positive pole of the second diode, the negative pole of the negative pole of described the first diode and the second diode connects rear ground connection altogether, between the negative pole of the negative pole of described the 3rd diode and the 4th diode, be also parallel with the first resistance, the two ends of this first resistance are connected with the two ends of the second elementary input coil of described high-tension transformer respectively as the input of described Protection of arcing unit, the tenth pin one tunnel the 6th grounding through resistance of described four-operational amplifier, five resistance of another road through being connected in series is successively connected with described DC power anode after the 4th resistance, and described the 5th resistance is variable resistance, the direct ground connection of the 11 pin of described four-operational amplifier, the 12 pin one tunnel the 8th grounding through resistance of described four-operational amplifier, another Lu Jing seven resistance are connected with described DC power anode, the tenth three-prong of described four-operational amplifier is through described the 3rd capacity earth, the 14 pin one tunnel the 13 grounding through resistance of described four-operational amplifier, another Lu Jing 12 resistance are connected with described DC power anode, and, the test side of described Protection of arcing unit includes continuation pulse igniting test side and intermittence pulse igniting test side, Yi road, described continuation pulse igniting test side the 5th grounding through resistance, another road is through described the 18 grounding through resistance, the two ends of the 18 resistance are parallel with the 5th electric capacity, and described intermittence pulse igniting test side is through described the 9th grounding through resistance.
As further preferred, described driver element includes change-over circuit and high-pressure electrostatic drive circuit, wherein, described control unit includes the first control output end and the second control output end, described change-over circuit includes the 19 resistance, the 20 resistance, the first triode, the second triode, the first relay and the second relay, the base stage of described the first triode is connected through the first control output end of described the 19 resistance and described control unit, the grounded emitter of this first triode, the collector electrode of this first triode connects DC power anode after the coil of described the first relay, the first input end of described high-pressure electrostatic drive circuit is connected with external 220V alternating current after the normally opened contact of described the first relay, the base stage of described the second triode is connected through the second control output end of described the 20 resistance and described control unit, the grounded emitter of this second triode, the collector electrode of this second triode connects described DC power anode after the coil of described the second relay, and the second input of described high-pressure electrostatic drive circuit is connected with described 220V alternating current after the normally opened contact of described the second relay.
As preferably, described high-tension transformer also includes magnetic core, secondary output winding and bridge rectifier, described bridge rectifier includes the first rectifier diode, the second rectifier diode, the 3rd rectifier diode and the 4th rectifier diode, wherein, the negative pole of the negative pole of described the first rectifier diode and the second rectifier diode connects altogether rear the first output as described high-tension transformer and is connected with the first input end of described high-pressure electrostatic output loop, the negative pole of the positive pole of described the first rectifier diode and the 3rd rectifier diode connects one end of the described secondary output winding of rear connection altogether, the positive pole of the positive pole of described the 3rd rectifier diode and the 4th rectifier diode connects altogether and as the second output of described high-tension transformer and the second input of described high-pressure electrostatic output loop, is connected afterwards, the positive pole of the negative pole of described the 4th rectifier diode and the second rectifier diode connects the other end of the described secondary output winding of rear connection altogether.
Compared with prior art, the utility model has the advantage of: in high-tension transformer, set up one group of elementary input coil as the coupling coil of electrion coil, and this coil is imported to Protection of arcing element circuit, circuit arranges simply, it is convenient to realize; By detecting the variation magnitude of voltage that continues sparking and gap sparking generation, carried out after rectifying and wave-filtering, become direct current signal analysis, thereby reach the object of accurate judgement sparking type and sparking number of times, can realize the effective control to the fume purifier of fume under difference sparking state, effectively avoid the disaster hidden-trouble causing because continuing the frequent sparking of sparking or clearance-type, improved safety in utilization and the reliability of equipment.
Accompanying drawing explanation
Fig. 1 is the arcing detection circuit general function block diagram of the utility model embodiment.
Fig. 2 is the Protection of arcing unit physical circuit connection layout of the utility model embodiment.
Fig. 3 is the control unit of the utility model embodiment and the linkage function block diagram between driver element.
Fig. 4 is the arcing detection circuit control method flow chart of the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
As shown in FIG. 1 to 3; the present embodiment discloses a kind of arcing detection circuit of fume purifier of fume, and this arcing detection circuit includes control unit 1, driver element 2, Protection of arcing unit 6, main shake loop 3, high-tension transformer 4 and high-pressure electrostatic output loop 5.
Protection of arcing unit 6 includes input and test side, the test side of Protection of arcing unit 6 includes continuation pulse igniting test side a and intermittence pulse igniting test side b, and the second elementary input coil L2 of the input of Protection of arcing unit 6 and high-tension transformer 4 is connected; Control unit 1 includes feedback end and control output end; the continuation pulse igniting test side a of Protection of arcing unit 6 is connected with the feedback end of control unit 1 respectively with intermittence pulse igniting test side b; the control output end of control unit 1 is connected with the input of driver element 2; the output of driver element 2 is connected with the input in the main loop 3 that shakes; the main output in loop 3 and the first elementary input coil L1 of high-tension transformer 4 of shaking is connected, and the output of high-tension transformer 4 is connected with the input of high-pressure electrostatic output loop 5.
Wherein, high-tension transformer 4 includes the first elementary input coil L1, the second elementary input coil L2, magnetic core T, secondary output winding L3 and bridge rectifier, bridge rectifier is a full-bridge rectifier, this bridge rectifier includes the first rectifier diode D1 ', the second rectifier diode D2 ', the 3rd rectifier diode D3 ' and the 4th rectifier diode D4 ', the negative pole of the negative pole of the first rectifier diode D1 ' and the second rectifier diode D2 ' connects altogether rear the first output as high-tension transformer 4 and is connected with the first input end of high-pressure electrostatic output loop 5, the negative pole of the positive pole of the first rectifier diode D1 ' and the 3rd rectifier diode D3 ' connects one end of the secondary output winding L3 of rear connection altogether, the positive pole of the positive pole of the 3rd rectifier diode D3 ' and the 4th rectifier diode D4 ' connects altogether and as the second output of high-tension transformer 4 and the second input of high-pressure electrostatic output loop 5, is connected afterwards, the positive pole of the negative pole of the 4th rectifier diode D4 ' and the second rectifier diode D2 ' connects the other end of the secondary output winding L3 of rear connection altogether.
Driver element 2 includes change-over circuit 21 and high-pressure electrostatic drive circuit 22, wherein, control unit 1 includes the first control output end 11 and the second control output end 12, change-over circuit 21 includes the 19 resistance R 19, the 20 resistance R 20, the first triode Q1, the second triode Q2, the first relay K 1 and the second relay K 2, the base stage of the first triode Q1 is connected through the first control output end 11 of the 19 resistance R 19 and control unit 1, the grounded emitter of this first triode Q1, the collector electrode of this first triode Q1 connects DC power anode after the coil of the first relay K 1, the first input end of high-pressure electrostatic drive circuit 22 is connected with external 220V alternating current after the normally opened contact of the first relay K 1, the base stage of the second triode Q2 is connected through the second control output end 12 of the 20 resistance R 20 and control unit 1, the grounded emitter of this second triode Q2, the collector electrode of this second triode Q2 connects DC power anode after the coil of the second relay K 2, and the second input of high-pressure electrostatic drive circuit 22 is connected with 220V alternating current after the normally opened contact of the second relay K 2.
Shake loop 3, high-pressure electrostatic drive circuit 22 and high-pressure electrostatic output loop 5 of the master of the present embodiment is respectively prior art, can adopt various circuit connection structure of the prior art to realize, and the present embodiment is not described further.
The control unit 1 of the present embodiment adopts the microcontroller chip that the model of SONIX company is SN8P2501B, wherein, the four-operational amplifier IC that the model that Protection of arcing unit 6 YiTI companies release is LM324 is core, this four-operational amplifier IC includes 14 pins, the first pin of four-operational amplifier IC is connected with the positive pole of the 6th diode D6, negative pole one tunnel of the 6th diode D6 is connected with the negative pole of the 5th diode D5, another road is through the 17 resistance R 17 and the 18 resistance R 18 ground connection of series connection successively, the 7th pin of the positive pole of the 5th diode D5 and four-operational amplifier IC is connected, the second pin one tunnel the 16 resistance R 16 of four-operational amplifier IC is connected with DC power anode, and another road is through the 14 resistance R 14 and the 15 resistance R 15 ground connection of series connection successively, three-prong one tunnel of four-operational amplifier IC is connected with the 6th pin of this four-operational amplifier IC, another Lu Jing tetra-capacitor C 4 ground connection, the 4th pin of four-operational amplifier IC is connected with DC power anode, the 5th pin of four-operational amplifier IC is through the 15 resistance R 15 ground connection, the 8th pin one tunnel of four-operational amplifier IC through successively serial connection the 11 resistance R 11 and the 3rd capacitor C 3 after ground connection, another road through successively serial connection the tenth resistance R 10 and the 9th resistance R 9 after ground connection, the 9th pin of four-operational amplifier IC is divided into three tunnels, the first via is connected with DC power anode after the second resistance R 2, the second tunnel is ground connection after the 3rd resistance R 3, Third Road through the first capacitor C 1 Hou Yi road again through the second capacitor C 2 ground connection, another road is connected with the positive pole of the 3rd diode D3, the positive pole of the positive pole of the 3rd diode D3 the again with four diode D4 is connected, the negative pole of the 3rd diode D3 is connected with the positive pole of the first diode D1, the negative pole of the 4th diode D4 is connected with the positive pole of the second diode D2, the negative pole of the negative pole of the first diode D1 and the second diode D2 connects rear ground connection altogether, between the negative pole of the negative pole of the 3rd diode D3 and the 4th diode D4, be also parallel with the first resistance R 1, the two ends of this first resistance R 1 as the input of Protection of arcing unit 6 respectively with the two ends P1 of the second elementary input coil L2 of high-tension transformer 4, P2 is connected, the tenth pin one tunnel the 6th resistance R 6 ground connection of four-operational amplifier IC, five resistance R 5 of another road through being connected in series is successively connected with DC power anode after the 4th resistance R 4, and the 5th resistance R 5 is variable resistance, the direct ground connection of the 11 pin of four-operational amplifier IC, the 12 pin one tunnel the 8th resistance R 8 ground connection of four-operational amplifier IC, another Lu Jing seven resistance R 7 are connected with DC power anode, the tenth three-prong of four-operational amplifier IC is through the 3rd capacitor C 3 ground connection, the 14 pin one tunnel the 13 resistance R 13 ground connection of four-operational amplifier IC, another Lu Jing 12 resistance R 12 are connected with DC power anode, and, a Yi road, continuation pulse igniting test side the 5th resistance R 5 ground connection, another Lu Jing 18 resistance R 18 ground connection, the two ends of the 18 resistance R 18 are parallel with the 5th capacitor C 5, and intermittence pulse igniting test side b is through the 9th resistance R 9 ground connection.
The operation principle of the arcing detection circuit of the present embodiment is: the input at high-tension transformer 4 arranges the second elementary input coil L2, coupling coil as electrion coil, and this coil is connected in Protection of arcing unit 6 circuit, between winner is shaken the first elementary output winding that loop 3 connects and the second elementary input coil L2 of newly establishing, can form voltage difference, pass through rectifying and wave-filtering, can change this voltage difference into direct current signal analysis, thereby can the change in voltage between two of static lampblack purification device metal discharge ends be made and being detected and feedback, prevent the fire that two metal discharge end faces cause because continuing sparking, improve safety in utilization and the reliability of fume purifier of fume.
As shown in Figure 4, control method for the arcing detection circuit of the present embodiment, the control unit 1 that this control method is mainly SN8P2501B by model is realized, and is preset with the first timer T1, the second timer T2 sum counter in fume purifier of fume, and control method specifically includes following steps:
(1), fume purifier of fume starts purification function, the first timer T1 starts timing;
(2), after purification function starts, for fear of the test side level due to Protection of arcing unit 6, change the erroneous judgement causing disconnected, first control unit 1 judges that whether the first timer T1 is greater than t1 second default time of delay, if so, forwards next step to; If not, continue to carry out this step; Wherein, t1 second is the predefined time of delay that prevents misoperation.
(3), under fume purifier of fume normal operating conditions, the intermittence pulse igniting test side b that sets Protection of arcing unit 6 is output as high level, the continuation pulse igniting test side a that sets Protection of arcing unit 6 is output as low level, control unit 1 judges whether output low level of current intermittence pulse igniting test side b, if so, forward next step to; If not, the second timer T2 starts timing, and execution step (6).
(4), control unit 1 continues to judge whether the low level output time of intermittence pulse igniting test side b continued preset time t 2 seconds, if so, forwards next step to; If not, get back to step (3); Wherein, t2 second is the shortest time of realizing effective intermittence pulse igniting, only have when the low level time of the test side output of intermittence pulse igniting and more than second, just once effectively strike sparks at last at t2, can avoid thus closing because of misoperation or external interference the purification function of cooking fume remover.
(5), counter counts the number of times of intermittence pulse igniting, control unit 1 judges whether counter reaches the accumulative total of setting, if reach the accumulative total of setting, in execution step (9); If do not reach the accumulative total of setting, the second timer T2 zero clearing, and get back to step (3);
(6), for fear of the detection mouth level causing after gap pulse igniting produces, change and disturb, control unit 1 judge whether the second timer T2 reaches to be greater than to be preset t3 second time of delay, if so, carries out next step; If not, get back to step (3); The delay of setting t3 second can reduce the erroneous judgement probability that continues sparking.
(7), control unit 1 judges that whether continuation pulse igniting test side a exports high level, if so, carries out next step; If not, get back to step (3);
(8), control unit 1 judges that whether the high level output time of continuation pulse igniting test side a continue preset time t 4 seconds, if so, carries out next step; If not, get back to step (3); The delay of t4 second is in order to prevent misoperation or external interference equally, guarantee continuation pulse igniting test side a detected be the information of effectively striking sparks.
(9), fume purifier of fume is closed purification function.
The time of t1, t2, t3 and t4 described in above-mentioned steps (1)～(9) is all predefined information in fume purifier of fume, can make different settings according to the practical working situation of dissimilar fume purifier of fume.
The control method of the present embodiment can be for dissimilar sparking (the present embodiment relates generally to three classes), and control unit 1 finally can be made corresponding indication:
1, for continuing sparking: after control unit 1 judgement, the driver element 2 of directly closing the main loop 3 that shakes, until next time, start made a decision again.
2, for intermittence, strike sparks: intermittence sparking adopts counter protection, for different purifiers, different accumulative totals can be set, when intermittence sparking reaches accumulative total, close the driver element 2 in the main loop 3 that shakes, until next time, start made a decision again.
3, interpretation is delayed in start: after each start, in a period of time after the main loop 3 that shakes works together, first do not do the interpretation of Protection of arcing, and interpretation again after delaying certain hour, object is to remove the fault effects existing after interference after start and sparking last time.
Can there is to continue sparking by simulation and reach the object of accurate judgement sparking type and sparking number of times from the different magnitudes of voltage of gap sparking generation in the control method of the present embodiment, thereby realize the Protection of arcing of fume purifier of fume.Microcontroller judges by the magnitude of voltage of the detection mouth output to arc protect circuit; it is that interpretation goes out for which class sparking; for different sparking types; carry out different safeguard measures; thereby make fume purifier of fume more intelligent, improved safety in utilization and the reliability of fume purifier of fume.
Claims (4)
1. the arcing detection circuit of a fume purifier of fume, include control unit, driver element, the main loop that shakes, high-tension transformer and high-pressure electrostatic output loop, it is characterized in that: described high-tension transformer includes the first elementary input coil and the second elementary input coil, the second elementary input coil of described high-tension transformer is connected with a sparking protected location, described Protection of arcing unit includes input and test side, the test side of described Protection of arcing unit includes continuation pulse igniting test side and intermittence pulse igniting test side, the second elementary input coil of the input of described Protection of arcing unit and described high-tension transformer is connected, described control unit includes feedback end and control output end, the continuation pulse igniting test side of described Protection of arcing unit is connected with the feedback end of described control unit respectively with intermittence pulse igniting test side, the control output end of described control unit is connected with the input of described driver element, the shake input in loop of the output of described driver element and described master is connected, the shake output in loop and the first elementary input coil of described high-tension transformer of described master is connected, and the output of described high-tension transformer is connected with the input of described high-pressure electrostatic output loop.
2. the arcing detection circuit of fume purifier of fume according to claim 1, it is characterized in that: it is core that the four-operational amplifier that model is LM324 be take in described Protection of arcing unit, described four-operational amplifier includes 14 pins, the first pin of described four-operational amplifier is connected with the positive pole of the 6th diode, negative pole one tunnel of the 6th diode is connected with the negative pole of the 5th diode, another road is through the 17 resistance and the 18 grounding through resistance of series connection successively, and the 7th pin of the positive pole of the 5th described diode and described four-operational amplifier is connected, the second pin one tunnel the 16 resistance of described four-operational amplifier is connected with DC power anode, and another road is through the 14 resistance and the 15 grounding through resistance of series connection successively, three-prong one tunnel of described four-operational amplifier and the 6th pin of this four-operational amplifier are connected, another Lu Jing tetra-capacity earths, the 4th pin of described four-operational amplifier is connected with described DC power anode, the 5th pin of described four-operational amplifier is through described the 15 grounding through resistance, the 8th pin one tunnel of described four-operational amplifier through successively serial connection the 11 resistance and the 3rd electric capacity after ground connection, another road through successively serial connection the tenth resistance and the 9th resistance after ground connection, the 9th pin of described four-operational amplifier is divided into three tunnels, the first via is connected with described DC power anode after the second resistance, the second tunnel is ground connection after the 3rd resistance, Third Road through the first electric capacity Hou Yi road again through the second capacity earth, another road is connected with the positive pole of the 3rd diode, the positive pole of the positive pole of described the 3rd diode the again with four diode is connected, the negative pole of the 3rd diode is connected with the positive pole of the first diode, the negative pole of described the 4th diode is connected with the positive pole of the second diode, the negative pole of the negative pole of described the first diode and the second diode connects rear ground connection altogether, between the negative pole of the negative pole of described the 3rd diode and the 4th diode, be also parallel with the first resistance, the two ends of this first resistance are connected with the two ends of the second elementary input coil of described high-tension transformer respectively as the input of described Protection of arcing unit, the tenth pin one tunnel the 6th grounding through resistance of described four-operational amplifier, five resistance of another road through being connected in series is successively connected with described DC power anode after the 4th resistance, and described the 5th resistance is variable resistance, the direct ground connection of the 11 pin of described four-operational amplifier, the 12 pin one tunnel the 8th grounding through resistance of described four-operational amplifier, another Lu Jing seven resistance are connected with described DC power anode, the tenth three-prong of described four-operational amplifier is through described the 3rd capacity earth, the 14 pin one tunnel the 13 grounding through resistance of described four-operational amplifier, another Lu Jing 12 resistance are connected with described DC power anode, and, Yi road, described continuation pulse igniting test side the 5th grounding through resistance, another road is through described the 18 grounding through resistance, and the two ends of the 18 resistance are parallel with the 5th electric capacity, and described intermittence pulse igniting test side is through described the 9th grounding through resistance.
3. the arcing detection circuit of fume purifier of fume according to claim 1, it is characterized in that: described driver element includes change-over circuit and high-pressure electrostatic drive circuit, wherein, described control unit includes the first control output end and the second control output end, described change-over circuit includes the 19 resistance, the 20 resistance, the first triode, the second triode, the first relay and the second relay, the base stage of described the first triode is connected through the first control output end of described the 19 resistance and described control unit, the grounded emitter of this first triode, the collector electrode of this first triode connects DC power anode after the coil of described the first relay, the first input end of described high-pressure electrostatic drive circuit is connected with external 220V alternating current after the normally opened contact of described the first relay, the base stage of described the second triode is connected through the second control output end of described the 20 resistance and described control unit, the grounded emitter of this second triode, the collector electrode of this second triode connects described DC power anode after the coil of described the second relay, and the second input of described high-pressure electrostatic drive circuit is connected with described 220V alternating current after the normally opened contact of described the second relay.
4. the arcing detection circuit of fume purifier of fume according to claim 1, it is characterized in that: described high-tension transformer also includes magnetic core, secondary output winding and bridge rectifier, described bridge rectifier includes the first rectifier diode, the second rectifier diode, the 3rd rectifier diode and the 4th rectifier diode, wherein, the negative pole of the negative pole of described the first rectifier diode and the second rectifier diode connects altogether rear the first output as described high-tension transformer and is connected with the first input end of described high-pressure electrostatic output loop, the negative pole of the positive pole of described the first rectifier diode and the 3rd rectifier diode connects one end of the described secondary output winding of rear connection altogether, the positive pole of the positive pole of described the 3rd rectifier diode and the 4th rectifier diode connects altogether and as the second output of described high-tension transformer and the second input of described high-pressure electrostatic output loop, is connected afterwards, the positive pole of the negative pole of described the 4th rectifier diode and the second rectifier diode connects the other end of the described secondary output winding of rear connection altogether.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420127986.4U CN203774757U (en) | 2014-03-20 | 2014-03-20 | Ignition detecting circuit of oil smoke purifying device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420127986.4U CN203774757U (en) | 2014-03-20 | 2014-03-20 | Ignition detecting circuit of oil smoke purifying device |
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| CN203774757U true CN203774757U (en) | 2014-08-13 |
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| CN201420127986.4U Expired - Lifetime CN203774757U (en) | 2014-03-20 | 2014-03-20 | Ignition detecting circuit of oil smoke purifying device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103915820A (en) * | 2014-03-20 | 2014-07-09 | 宁波方太厨具有限公司 | Ignition detection circuit of lampblack purification device and control method of ignition detection circuit |
| CN106130330A (en) * | 2016-06-24 | 2016-11-16 | 珠海格力电器股份有限公司 | High-voltage module protection method and device of air purifier and air purifier |
-
2014
- 2014-03-20 CN CN201420127986.4U patent/CN203774757U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103915820A (en) * | 2014-03-20 | 2014-07-09 | 宁波方太厨具有限公司 | Ignition detection circuit of lampblack purification device and control method of ignition detection circuit |
| CN103915820B (en) * | 2014-03-20 | 2017-01-11 | 宁波方太厨具有限公司 | Ignition detection circuit of lampblack purification device and control method of ignition detection circuit |
| CN106130330A (en) * | 2016-06-24 | 2016-11-16 | 珠海格力电器股份有限公司 | High-voltage module protection method and device of air purifier and air purifier |
| CN106130330B (en) * | 2016-06-24 | 2019-01-22 | 珠海格力电器股份有限公司 | High-voltage module protection method and device of air purifier and air purifier |
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