CN205700070U - A kind of air negative ion purifying device, power panel and driving plate of liquid crystal display screen - Google Patents
A kind of air negative ion purifying device, power panel and driving plate of liquid crystal display screen Download PDFInfo
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- CN205700070U CN205700070U CN201620355312.9U CN201620355312U CN205700070U CN 205700070 U CN205700070 U CN 205700070U CN 201620355312 U CN201620355312 U CN 201620355312U CN 205700070 U CN205700070 U CN 205700070U
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Abstract
This utility model belongs to electronics and technical field of air purification, it is provided that a kind of air negative ion purifying device, power panel and driving plate of liquid crystal display screen.In embodiment of the present utility model, described air negative ion purifying device is connected with DC source, described air negative ion purifying device includes the self-maintained circuit being sequentially connected with, rectification circuit and high voltage discharge circuit, the unidirectional current that DC source exports is converted to High Level AC Voltage by self-maintained circuit, High Level AC Voltage is converted to the high voltage direct current born by rectification circuit, high voltage discharge circuit carries out point discharge to negative high voltage direct current, release a large amount of electronics, oxygen molecule in air is combined, generate anion, and negative aeroion can kill the antibacterial in air, remove the dust in air, smog etc., reach to purify the purpose of air, this air negative ion purifying device is used for LCDs, can reduce LCDs to external radiation, be conducive to the physical and mental health of people.
Description
Technical field
This utility model belongs to electronics and technical field of air purification, particularly relates to a kind of air negative ion purifying device, power panel and driving plate of liquid crystal display screen.
Background technology
At present, the conventional architecture of the power panel within liquid crystal display or liquid crystal TV set is two-in-one electric source plate, i.e. power panel includes power module and LED drive module, power module is for powering for mainboard and screen, LED drive module is for a bright light bar, the above-mentioned configuration of power panel meets the complete machine Energy Efficiency Standard at every country, belongs to rigid standard.
It is known that, traditional this liquid crystal display or LCD TV can the most externally produce radiation, and when this liquid crystal display of people's life-time service or liquid crystal TV set, human body can be worked the mischief by its radiation produced, accelerate human senescence, be unfavorable for the physical and mental health of people.
Utility model content
The purpose of this utility model embodiment is to provide a kind of air negative ion purifying device, power panel and driving plate of liquid crystal display screen, it is intended to solve the problem that traditional liquid crystal display can externally produce radiation.
This utility model embodiment is achieved in that a kind of air negative ion purifying device, is connected with DC source, and described air negative ion purifying device includes:
It is connected with DC source, the unidirectional current that described DC source exports is converted to the self-maintained circuit of High Level AC Voltage；
Being connected with the outfan of described self-maintained circuit, the High Level AC Voltage exporting described self-maintained circuit carries out rectification, obtains the rectification circuit of the high voltage direct current born；
Being connected with the outfan of described rectification circuit, the negative high voltage direct current exported by described rectification circuit carries out the high voltage discharge circuit of point discharge.
Further, described self-maintained circuit includes:
Filter capacitor CS1, transformator T, oscillation resistance R1, electric capacity C1, resistance R2 and switching tube；
The positive pole of described filter capacitor CS1 is connected to described DC source altogether with the second end of the primary coil of described transformator T, the minus earth of described filter capacitor CS1, the end that controls of described switching tube passes sequentially through the 3rd end that described resistance R2 and described oscillation resistance R1 connects the primary coil of described transformator T, described electric capacity C1 is parallel to the two ends of described oscillation resistance R1, the high potential of described switching tube terminates the first end of the primary coil of described transformator T, the cold end ground connection of described switching tube, the two ends of the secondary coil of described transformator T all connect described rectification circuit.
Further, described rectification circuit includes:
Commutation diode D1 and filter capacitor CS2；
The negative electrode of described commutation diode D1 connects the first end of the secondary coil of described transformator T, the anode of described commutation diode D1 is connected to described high voltage discharge circuit altogether with first end of described filter capacitor CS2, and second end of described filter capacitor CS2 is connected to ground altogether with the second end of the secondary coil of described transformator T.
Further, described high voltage discharge circuit includes: resistance RS1, positive carbon fiber electrically sub-line and negative carbon fiber electrically sub-line；
The anode of the first described commutation diode D1 of termination of described resistance RS1, the second positive carbon fiber electrically sub-line of termination and the negative carbon fiber electrically sub-line of described resistance RS1.
Further, described switching tube uses NPN audion, the control end that base stage is described switching tube of described NPN audion, the hot end of the most described switching tube of current collection of described NPN audion, the cold end of the most described switching tube of transmitting of described NPN audion.
Further, described switching tube uses NMOS tube, and the grid of described NMOS tube is the control end of described switching tube, and the hot end that drain electrode is described switching tube of described NMOS tube, the source electrode of described NMOS tube is the cold end of described switching tube.
This utility model embodiment additionally provides a kind of power panel, and including DC source, described power panel also includes aforementioned described air negative ion purifying device, and described air negative ion purifying device is connected with described DC source.
Embodiment of the present utility model additionally provides a kind of driving plate of liquid crystal display screen, including DC source and the display drive circuit that is connected with described DC source, described driving plate of liquid crystal display screen also includes aforementioned described air negative ion purifying device, and described air negative ion purifying device is connected with described DC source.
In embodiment of the present utility model, described air negative ion purifying device is connected with DC source, described air negative ion purifying device includes the self-maintained circuit being sequentially connected with, rectification circuit and high voltage discharge circuit, the unidirectional current that DC source exports is converted to High Level AC Voltage by self-maintained circuit, High Level AC Voltage is converted to the high voltage direct current born by rectification circuit, high voltage discharge circuit carries out point discharge to negative high voltage direct current, release a large amount of electronics, oxygen molecule in air is combined, generate anion, and negative aeroion can kill the antibacterial in air, remove the dust in air, smog etc., reach to purify the purpose of air, this air negative ion purifying device is used for LCDs, can reduce LCDs to external radiation, be conducive to the physical and mental health of people.
Accompanying drawing explanation
Fig. 1 is the function structure chart of the air negative ion purifying device that this utility model embodiment provides；
Fig. 2 is the circuit structure diagram of the air negative ion purifying device that this utility model embodiment provides；
Fig. 3 is the circuit structure diagram of the power panel that this utility model embodiment provides；
Fig. 4 is the circuit structure diagram of the driving plate of liquid crystal display screen that this utility model embodiment provides.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain this utility model, is not used to limit this utility model.
Embodiment one:
First embodiment of the present utility model provides a kind of air negative ion purifying device.
Fig. 1 shows the modular structure of the air negative ion purifying device that this utility model embodiment provides, and for convenience of description, illustrate only the part relevant to this utility model embodiment.
A kind of air negative ion purifying device, is connected with DC source, and described air negative ion purifying device includes:
It is connected with DC source, the unidirectional current that described DC source exports is converted to the self-maintained circuit 10 of High Level AC Voltage；
It is connected with the outfan of self-maintained circuit 10, the High Level AC Voltage of self-maintained circuit 10 output is carried out rectification, obtains the rectification circuit 20 of the high voltage direct current born；
Being connected with the outfan of rectification circuit 20, the negative high voltage direct current exported by rectification circuit 20 carries out the high voltage discharge circuit 30 of point discharge.
In the present embodiment, the voltage of described DC source output 5-14V to self-maintained circuit 10, the value of the High Level AC Voltage of self-maintained circuit 10 output is-2KV-6KV.
Fig. 2 shows the circuit structure diagram of the air negative ion purifying device that this utility model embodiment provides, and for convenience of description, illustrate only the part relevant to this utility model embodiment.
As an embodiment of the present utility model, self-maintained circuit 10 includes:
Filter capacitor CS1, transformator T, oscillation resistance R1, electric capacity C1, resistance R2 and switching tube 100；
The positive pole of filter capacitor CS1 is connected to DC source altogether with the second end of the primary coil of transformator T, the minus earth of filter capacitor CS1, the end that controls of switching tube 100 passes sequentially through the 3rd end that resistance R2 and oscillation resistance R1 connects the primary coil of transformator T, electric capacity C1 is parallel to the two ends of oscillation resistance R1, first end of the primary coil of the high potential termination transformator T of switching tube 100, the cold end ground connection of switching tube 100, the two ends of the secondary coil of transformator T all connect rectification circuit.
As an embodiment of the present utility model, rectification circuit 20 includes:
Commutation diode D1 and filter capacitor CS2；
The negative electrode of commutation diode D1 connects the first end of the secondary coil of transformator T, and the anode of commutation diode D1 is connected to high voltage discharge circuit altogether with first end of filter capacitor CS2, and second end of filter capacitor CS2 is connected to ground altogether with the second end of the secondary coil of transformator T.
As an embodiment of the present utility model, high voltage discharge circuit 30 includes: resistance RS1, positive carbon fiber
Electric wire 300 and negative carbon fiber electrically sub-line 301；
The anode of the first termination commutation diode D1 of resistance RS1, the second positive carbon fiber electrically sub-line 300 of termination and the negative carbon fiber electrically sub-line 301 of resistance RS1.
In the present embodiment, the negative High Level AC Voltage of rectification circuit 20 output, by positive carbon fiber electrically sub-line 300 and the point discharge of negative carbon fiber electrically sub-line 301, produces high corona, releases a large amount of electronics (e at a high speed-), the oxygen molecule in air is combined, and generates anion, and anion can kill the antibacterial in air, the dust removed in air, smog etc., reaches to purify the purpose of air.
As an embodiment of the present utility model, switching tube 100 uses NPN audion Q1, the control end that base stage is switching tube 100 of NPN audion Q1, the hot end of the current collection of NPN audion Q1 extremely switching tube 100, the cold end of the transmitting of NPN audion Q1 extremely switching tube 100.
As an embodiment of the present utility model, switching tube 100 uses NMOS tube (not shown), the grid of NMOS tube is the control end of switching tube 100, and the hot end that drain electrode is switching tube 100 of NMOS tube, the source electrode of NMOS tube is the cold end of switching tube 100.
As an embodiment of the present utility model, switching tube 100 can also use controllable silicon, switch chip etc..
Embodiment two:
Second embodiment of the present utility model provides a kind of power panel.
Fig. 3 shows the circuit structure diagram of the power panel that this utility model embodiment provides, and for convenience of description, illustrate only the part relevant to this utility model embodiment.
A kind of power panel, including DC source, described power panel also includes air negative ion purifying device.Described air negative ion purifying device is connected with DC source, and described air negative ion purifying device includes:
It is connected with DC source, the unidirectional current that described DC source exports is converted to the self-maintained circuit 10 of High Level AC Voltage；
It is connected with the outfan of self-maintained circuit 10, the High Level AC Voltage of self-maintained circuit 10 output is carried out rectification, obtains the rectification circuit 20 of the high voltage direct current born；
Being connected with the outfan of rectification circuit 20, the negative high voltage direct current exported by rectification circuit 20 carries out the high voltage discharge circuit 30 of point discharge.
In the present embodiment, the voltage of described DC source output 5-14V to self-maintained circuit 10, the value of the High Level AC Voltage of self-maintained circuit 10 output is-2KV-6KV.
As an embodiment of the present utility model, self-maintained circuit 10 includes:
Filter capacitor CS1, transformator T, oscillation resistance R1, electric capacity C1, resistance R2 and switching tube 100；
The positive pole of filter capacitor CS1 is connected to DC source altogether with the second end of the primary coil of transformator T, the minus earth of filter capacitor CS1, the end that controls of switching tube 100 passes sequentially through the 3rd end that resistance R2 and oscillation resistance R1 connects the primary coil of transformator T, electric capacity C1 is parallel to the two ends of oscillation resistance R1, first end of the primary coil of the high potential termination transformator T of switching tube 100, the cold end ground connection of switching tube 100, the two ends of the secondary coil of transformator T all connect rectification circuit.
As an embodiment of the present utility model, rectification circuit 20 includes:
Commutation diode D1 and filter capacitor CS2；
The negative electrode of commutation diode D1 connects the first end of the secondary coil of transformator T, and the anode of commutation diode D1 is connected to high voltage discharge circuit altogether with first end of filter capacitor CS2, and second end of filter capacitor CS2 is connected to ground altogether with the second end of the secondary coil of transformator T.
As an embodiment of the present utility model, high voltage discharge circuit 30 includes: resistance RS1, positive carbon fiber electrically sub-line 300 and negative carbon fiber electrically sub-line 301；
The anode of the first termination commutation diode D1 of resistance RS1, the second positive carbon fiber electrically sub-line 300 of termination and the negative carbon fiber electrically sub-line 301 of resistance RS1.
In the present embodiment, the negative High Level AC Voltage of rectification circuit 20 output, by positive carbon fiber electrically sub-line 300 and the point discharge of negative carbon fiber electrically sub-line 301, produces high corona, releases a large amount of electronics (e at a high speed-), the oxygen molecule in air is combined, and generates anion, and anion can kill the antibacterial in air, the dust removed in air, smog etc., reaches to purify the purpose of air.
As an embodiment of the present utility model, switching tube 100 uses NPN audion Q1, the control end that base stage is switching tube 100 of NPN audion Q1, the hot end of the current collection of NPN audion Q1 extremely switching tube 100, the cold end of the transmitting of NPN audion Q1 extremely switching tube 100.
As an embodiment of the present utility model, switching tube 100 uses NMOS tube (not shown), the grid of NMOS tube is the control end of switching tube 100, and the hot end that drain electrode is switching tube 100 of NMOS tube, the source electrode of NMOS tube is the cold end of switching tube 100.
As an embodiment of the present utility model, switching tube 100 can also use controllable silicon, switch chip etc..
Embodiment three:
This utility model the 3rd embodiment provides a kind of driving plate of liquid crystal display screen.
Fig. 4 shows the circuit structure diagram of the driving plate of liquid crystal display screen that this utility model embodiment provides, and for convenience of description, illustrate only the part relevant to this utility model embodiment.
A kind of driving plate of liquid crystal display screen, including DC source and the display drive circuit that is connected with described DC source, described driving plate of liquid crystal display screen also includes air negative ion purifying device, described air negative ion purifying device is connected with described DC source, and described air negative ion purifying device includes:
It is connected with DC source, the unidirectional current that described DC source exports is converted to the self-maintained circuit 10 of High Level AC Voltage；
It is connected with the outfan of self-maintained circuit 10, the High Level AC Voltage of self-maintained circuit 10 output is carried out rectification, obtains the rectification circuit 20 of the high voltage direct current born；
Being connected with the outfan of rectification circuit 20, the negative high voltage direct current exported by rectification circuit 20 carries out the high voltage discharge circuit 30 of point discharge.
In the present embodiment, the voltage of described DC source output 5-14V to self-maintained circuit 10, the value of the High Level AC Voltage of self-maintained circuit 10 output is-2KV-6KV.In actual applications, can DC source, display drive circuit and air negative ion purifying device be arranged on one block of plate, this plate had both met the hard requirement of complete machine, can make again inside complete machine more clean, air can be purified simultaneously.
As an embodiment of the present utility model, self-maintained circuit 10 includes:
Filter capacitor CS1, transformator T, oscillation resistance R1, electric capacity C1, resistance R2 and switching tube 100；
The positive pole of filter capacitor CS1 is connected to DC source altogether with the second end of the primary coil of transformator T, the minus earth of filter capacitor CS1, the end that controls of switching tube 100 passes sequentially through the 3rd end that resistance R2 and oscillation resistance R1 connects the primary coil of transformator T, electric capacity C1 is parallel to the two ends of oscillation resistance R1, first end of the primary coil of the high potential termination transformator T of switching tube 100, the cold end ground connection of switching tube 100, the two ends of the secondary coil of transformator T all connect rectification circuit.
As an embodiment of the present utility model, rectification circuit 20 includes:
Commutation diode D1 and filter capacitor CS2；
The negative electrode of commutation diode D1 connects the first end of the secondary coil of transformator T, and the anode of commutation diode D1 is connected to high voltage discharge circuit altogether with first end of filter capacitor CS2, and second end of filter capacitor CS2 is connected to ground altogether with the second end of the secondary coil of transformator T.
As an embodiment of the present utility model, high voltage discharge circuit 30 includes: resistance RS1, positive carbon fiber electrically sub-line 300 and negative carbon fiber electrically sub-line 301.
In the present embodiment, the negative High Level AC Voltage of rectification circuit 20 output, by positive carbon fiber electrically sub-line 300 and the point discharge of negative carbon fiber electrically sub-line 301, produces high corona, releases a large amount of electronics (e at a high speed-), oxygen molecule in air is combined, generate anion, anion can kill the antibacterial in air, the dust removed in air, smog etc., reach to purify the purpose of air, anion can remove the dust within LCDs complete machine simultaneously, decreases people's cleaning to complete machine, reduces the fault rate of complete machine internal hardware.
The anode of the first termination commutation diode D1 of resistance RS1, the second positive carbon fiber electrically sub-line 300 of termination and the negative carbon fiber electrically sub-line 301 of resistance RS1.
As an embodiment of the present utility model, switching tube 100 uses NPN audion Q1, the control end that base stage is switching tube 100 of NPN audion Q1, the hot end of the current collection of NPN audion Q1 extremely switching tube 100, the cold end of the transmitting of NPN audion Q1 extremely switching tube 100.
As an embodiment of the present utility model, switching tube 100 uses NMOS tube (not shown), the grid of NMOS tube is the control end of switching tube 100, and the hot end that drain electrode is switching tube 100 of NMOS tube, the source electrode of NMOS tube is the cold end of switching tube 100.
As an embodiment of the present utility model, switching tube 100 can also use controllable silicon, switch chip etc..
Below in conjunction with operation principle, embodiment of the present utility model is described further:
nullAs shown in Figure 2，The second end of the primary coil of transformator T it is input to after the filtering of the unidirectional current electric capacity CS1 after filtering of the 5-14V of DC source output，It is charged to electric capacity C1 through oscillation resistance R1 the most again，When the voltage at electric capacity C1 two ends reaches 0.7V，NPN type triode Q1 turns on，Now，Unidirectional current is through the second end of the primary coil of transformator T、3rd end of the primary coil of transformator T、Oscillation resistance R1、Resistance R2、NPN type triode Q1、First end of the primary coil of transformator T forms loop，Electric capacity C1 is discharged by the emitter stage of NPN type triode Q1 simultaneously，When the voltage at electric capacity C1 two ends is less than 0.3V，NPN type triode Q1 is ended，Now unidirectional current is charged to electric capacity C1 further through the second end of the primary coil of transformator T，NPN type triode Q1 is turned on repeatedly and ends，Produce pulsating dc voltage，Pulsating dc voltage is converted to High Level AC Voltage through transformator T，Halfwave rectifier through commutation diode D1 and filter capacitor CS2 exports high voltage direct current again，Because commutation diode D1 reversal connection，Therefore negative high voltage direct current is exported，Negative high voltage direct current connects positive carbon fiber electrically sub-line 300 and negative carbon fiber electrically sub-line 301 carries out point discharge through resistance RS1，Produce high corona，Release a large amount of electronics (e at a high speed-), the oxygen molecule in air is combined, and generates anion.
In embodiment of the present utility model, described air negative ion purifying device is connected with DC source, described air negative ion purifying device includes the self-maintained circuit being sequentially connected with, rectification circuit and high voltage discharge circuit, the unidirectional current that DC source exports is converted to High Level AC Voltage by self-maintained circuit, High Level AC Voltage is converted to the high voltage direct current born by rectification circuit, high voltage discharge circuit carries out point discharge to negative high voltage direct current, release a large amount of electronics, oxygen molecule in air is combined, generate anion, and negative aeroion can kill the antibacterial in air, remove the dust in air, smog etc., reach to purify the purpose of air, this air negative ion purifying device is used for LCDs, can reduce LCDs to external radiation, be conducive to the physical and mental health of people.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all any amendment, equivalent and improvement etc. made within spirit of the present utility model and principle, within should be included in protection domain of the present utility model.
Claims (8)
1. an air negative ion purifying device, is connected with DC source, it is characterised in that described air negative ion purifying device includes:
It is connected with DC source, the unidirectional current that described DC source exports is converted to the self-maintained circuit of High Level AC Voltage；
Being connected with the outfan of described self-maintained circuit, the High Level AC Voltage exporting described self-maintained circuit carries out rectification, obtains the rectification circuit of the high voltage direct current born；
Being connected with the outfan of described rectification circuit, the negative high voltage direct current exported by described rectification circuit carries out the high voltage discharge circuit of point discharge.
2. air negative ion purifying device as claimed in claim 1, it is characterised in that described self-maintained circuit includes:
Filter capacitor CS1, transformator T, oscillation resistance R1, electric capacity C1, resistance R2 and switching tube；
The positive pole of described filter capacitor CS1 is connected to described DC source altogether with the second end of the primary coil of described transformator T, the minus earth of described filter capacitor CS1, the end that controls of described switching tube passes sequentially through the 3rd end that described resistance R2 and described oscillation resistance R1 connects the primary coil of described transformator T, described electric capacity C1 is parallel to the two ends of described oscillation resistance R1, the high potential of described switching tube terminates the first end of the primary coil of described transformator T, the cold end ground connection of described switching tube, the two ends of the secondary coil of described transformator T all connect described rectification circuit.
3. air negative ion purifying device as claimed in claim 2, it is characterised in that described rectification circuit includes:
Commutation diode D1 and filter capacitor CS2；
The negative electrode of described commutation diode D1 connects the first end of the secondary coil of described transformator T, the anode of described commutation diode D1 is connected to described high voltage discharge circuit altogether with first end of described filter capacitor CS2, and second end of described filter capacitor CS2 is connected to ground altogether with the second end of the secondary coil of described transformator T.
4. air negative ion purifying device as claimed in claim 3, it is characterised in that described high voltage discharge circuit includes: resistance RS1, positive carbon fiber electrically sub-line and negative carbon fiber electrically sub-line；
The anode of the first described commutation diode D1 of termination of described resistance RS1, the second positive carbon fiber electrically sub-line of termination and the negative carbon fiber electrically sub-line of described resistance RS1.
5. air negative ion purifying device as claimed in claim 4, it is characterized in that, described switching tube uses NPN audion, the control end that base stage is described switching tube of described NPN audion, the hot end of the most described switching tube of current collection of described NPN audion, the cold end of the most described switching tube of transmitting of described NPN audion.
6. air negative ion purifying device as claimed in claim 4, it is characterized in that, described switching tube uses NMOS tube, the grid of described NMOS tube is the control end of described switching tube, the hot end that drain electrode is described switching tube of described NMOS tube, the source electrode of described NMOS tube is the cold end of described switching tube.
7. a power panel, including DC source, it is characterised in that described power panel also includes that the air negative ion purifying device as described in claim 1-6 any one, described air negative ion purifying device are connected with described DC source.
8. a driving plate of liquid crystal display screen, including DC source and the display drive circuit that is connected with described DC source, it is characterized in that, described driving plate of liquid crystal display screen also includes that the air negative ion purifying device as described in claim 1-6 any one, described air negative ion purifying device are connected with described DC source.
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| CN201620355312.9U CN205700070U (en) | 2016-04-22 | 2016-04-22 | A kind of air negative ion purifying device, power panel and driving plate of liquid crystal display screen |
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| CN201620355312.9U CN205700070U (en) | 2016-04-22 | 2016-04-22 | A kind of air negative ion purifying device, power panel and driving plate of liquid crystal display screen |
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