CN101494942A - Piezo-oscillator for high voltage lighting - Google Patents
Piezo-oscillator for high voltage lighting Download PDFInfo
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- CN101494942A CN101494942A CNA2008100047322A CN200810004732A CN101494942A CN 101494942 A CN101494942 A CN 101494942A CN A2008100047322 A CNA2008100047322 A CN A2008100047322A CN 200810004732 A CN200810004732 A CN 200810004732A CN 101494942 A CN101494942 A CN 101494942A
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- high pressure
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Abstract
The invention relates to a piezoelectric oscillator used for high-voltage lighting-up. A piezoelectric capacitor is connected with LC resonance circuit in parallel for power outputting; the LC resonance circuit is used for generating resonance; and achieves voltage amplifying effect by the inverse-piezoelectric effect generated in piezoelectric capacitor electrifying deformation and positive charge generated in the direct piezoelectric effect of the deformation. Therefore, the invention can save electricity consumption and reduce production cost.
Description
Technical field
What the present invention relates to is that a kind of high pressure is lit a lamp, particularly be a kind of piezoelectric oscillator that high pressure is lit a lamp that is used for.
Background technology
Cold cathode fluorescent lamp (Cold Cathode Fluorescent Lamp; CCFL) principle of luminosity is similar to general fluorescent lamp, its principle of luminosity is, after high-tension electricity is by the electrode tip input, minority electrons molecule high-speed impact electrode in the pipe, produce secondary this moment, and when beginning to discharge, electronics and mercury atom bump, mercury atom is stimulated and gives off the ultraviolet light of 253.7nm, and ultraviolet excitation is coated on the fluorescent material on the tube wall and produces the visible light of relative colour temperature.One of general removing can be applicable to display, personal digital assistant, digital camera and mobile phone etc., or the indispensable material backlight of LCD.Because cold-cathode fluorescence lamp do not adopt filament, so the problem of no filament blow so has very reliable useful life, use this kind fluorescent tube, advantage such as have high-luminous-efficiency, little, the high briliancy of caliber, heat is few, the life-span is long as lighting source.
For reaching the little requirement with good electrical usefulness of volume, the lamp circuit of cold cathode fluorescent lamp adopts piezoelectric transformer (piezoelectric transformer) to replace the coil form step-up transformer.Because piezoelectric transformer has that volume is little, high voltage gain, high efficiency, insulation is good and superior electrical characteristic such as no electromagnetic interference.Therefore, general common piezoelectric transformer is applied in the lamp circuit of high-luminous-efficiency illuminator, can reaches short and small frivolous and superior electric usefulness.
Yet, provide also big power output in order to make piezoelectric transformer, except amplifying, the simplest mode is the area increase with its silver electrode face, it is big that yet silver electrode face area becomes, and has the effect of reduction step-up ratio, and the effect that makes original expection improve power output is not cited.Amplify except increasing cost, also disagree with the compact requirement of hope.
Summary of the invention
In view of above problem, main purpose of the present invention is to provide a kind of piezoelectric oscillator that high pressure is lit a lamp that is used for, and utilizes piezoelectric simple in structure to cooperate the LC resonant circuit, reaches high-power output, thereby can alleviate power consumption and production cost, have market competition advantage.
Another object of the present invention is to provide a kind of piezoelectric oscillator that high pressure is lit a lamp that is used for, is by the piezoelectric effect of piezoelectric under the LC resonant circuit, can bring into play automatic protection mechanism when load is transshipped, and avoids causing fault and risk of overheating.
Therefore, for reaching above-mentioned purpose, disclosed in this inventionly be used for the piezoelectric oscillator that high pressure is lit a lamp, be with former be applied in the high-power piezoelectricity concussion sheet of ultrasonic waves oscillator then be applied in stabilizer that high pressure lights a lamp and converter in as piezoelectric, this piezoelectric can produce inverse piezoelectric effect when the energising distortion, the distortion back produces direct piezoelectric effect, so having positive charge produces, has the effect of amplifying voltage, and reach high-power output, having changed the conventional piezoelectric transformer only provides high voltage, little electric current and the limited shortcoming of power output.
And the present invention is with piezoelectric and the collocation of LC resonant circuit; when the LC resonance; can performance the best export usefulness; and when load is transshipped; the temperature of piezoelectric can rise, capacitance becomes big; make the LC resonant circuit can't produce resonance, output usefulness diminishes, and has automatic protection functions.
In addition, the present invention with piezoelectric can with LC resonant circuit collocation outside, also can match a capacitance auxiliary capacitor suitable and mate with piezoelectric, during at resonance, make the piezoelectric effect lifting at the LC resonant circuit, reach the power output optimization.
Description of drawings
Fig. 1 is the schematic diagram that is used for the piezoelectric oscillator that high pressure lights a lamp that the embodiment of the invention provides;
Fig. 2 is the schematic diagram of the piezoelectric that provides of the embodiment of the invention; With
Fig. 3 is the schematic diagram of the piezoelectric that provides of another embodiment of the present invention.
Description of reference numerals: 10-piezoelectric; 11-plectane base material; The 12-conductive layer; 121-electrode pin; The 13-conductive layer; 131-electrode pin; The 20-LC resonant circuit; 30 auxiliary capacitors; The 40-piezoelectric; The 50-lead-in wire.
Embodiment
Below in conjunction with accompanying drawing, be described in more detail with other technical characterictic and advantage the present invention is above-mentioned.
Please refer to Fig. 1, it is the schematic diagram that is used for the piezoelectric oscillator that high pressure lights a lamp that embodiments of the invention provide, and mainly comprises capacitor 10, LC resonant circuit 20 and the auxiliary capacitor 30 of mutual parallel connection.The employed capacitor 10 of piezoelectric oscillator is a piezoelectric, in order to store electrical energy and have piezoelectric property, can adjust power factor (PF) exports power again, can produce inverse piezoelectric effect during the energising distortion, can produce direct piezoelectric effect after the distortion, and its just, the conversion of inverse piezoelectric effect will generate positive charge, make voltage amplification, and have an effect of amplifying voltage, to reach high-power output, and present embodiment in order to produce the LC resonant circuit 20 of resonance, when LC resonant circuit 20 resonance, can produce best output usefulness with piezoelectric 10 collocation.
Because the capacitance of piezoelectric 10 is influenced by temperature mainly can, therefore, deciding under the situation of electric current, its output voltage can change, present embodiment is that apolegamy auxiliary capacitor 30 mates with transformation capacitor 10, the capacitance of the capacitance of auxiliary capacitor 30 and transformation capacitor 10 is suitable, in order to auxiliary charging, makes piezoelectric effect reach the power output optimization.Voltage can raise moment when lighting a lamp, and the capacitance of having lit a lamp then can be made suitable coupling, so output can be followed piezoelectric effect adjustment, can reduce extra power consumption.
As shown in Figure 2, the piezoelectric 10 of present embodiment is to make a plectane base material 11 with the piezoelectricity material, be similarly upper surface and the lower surface of the conductive layer 12,13 of circle with elargol, copper cream or the making of nickel cream again in the whole of plectane base material 11 or part, to constitute the two poles of the earth of piezoelectric 10, and weld respectively in conductive layer 12,13 outsides and to be provided with electrode pin 121,131, to connect LC resonant circuit 20.Be to use a piezoelectric 10 in the present embodiment, can export power, only need collocation half-bridge resonance circuit up to 70 watts, can reduce production cost, the advantage that has price competition, certainly, if collocation full-bridge resonant circuit promptly can promote also high-power output.Moreover this piezoelectric 10 can change resonance output greatly because of capacitance becomes if the LC resonant circuit of collocation L impedance type has automatic protection functions when load is transshipped, and power output reduces, and temperature is descended; Because piezoelectric 10 has piezoelectric property, in case during the load overload, its temperature rises, capacitance becomes big, make the capacitance of LC resonant circuit inside change, and can't produce resonance, output usefulness diminishes, lamp also with dark get off, so can avoid causing fault and risk of overheating.
In addition, as shown in Figure 3, another embodiment of the present invention is to use by a lead-in wire 50 and makes two piezoelectric 10,40 of connection up and down, piezoelectric can be serial or parallel connection on the practice, it has one group of plectane base material 11 and corresponding two conductive layers 12,13 (piezoelectric 10,40 structures are identical, so be representative with piezoelectric 10 only) respectively.Because capacitance improves, inductance value increases, and the power that the resonance back is produced also can and then become greatly, can export the power up to 100 watts, and temperature then can maintain about 30 ℃.This represents that also the piezoelectric conventional piezoelectric transformer of present embodiment is the power output that can provide multiple to increase, and does not have overheated problem.
The above only is preferred embodiment of the present invention, only is illustrative for the purpose of the present invention, and nonrestrictive.Those skilled in the art is understood, and can carry out many changes to it in the spirit and scope that claim of the present invention limited, revise, even equivalence, but all will fall within the scope of protection of the present invention.
Claims (8)
1, a kind ofly be used for the piezoelectric oscillator that high pressure is lit a lamp, it comprises a capacitor and a LC resonant circuit, it is characterized in that:
Described capacitor is a piezoelectric, and in parallel with described LC resonant circuit, and described piezoelectric includes:
One plectane base material, it has upper surface and lower surface, is the piezoelectricity material; With
Two conductive layers, it is respectively formed at the upper surface and the lower surface of described plectane base material, and constitutes the two poles of the earth of described piezoelectric.
2, according to claim 1ly be used for the piezoelectric oscillator that high pressure is lit a lamp, it is characterized in that: also comprise an auxiliary capacitor, be connected in parallel between described piezoelectric and the described LC resonant circuit.
3, according to claim 2ly be used for the piezoelectric oscillator that high pressure is lit a lamp, it is characterized in that: the capacitance of described auxiliary capacitor is suitable with the capacitance of described piezoelectric.
4, according to claim 1ly be used for the piezoelectric oscillator that high pressure is lit a lamp, it is characterized in that: described LC resonant circuit is made of half-bridge resonance circuit or full-bridge resonant circuit.
5, according to claim 1ly be used for the piezoelectric oscillator that high pressure is lit a lamp, it is characterized in that: the described two conductive layers outside also respectively welding be provided with an electrode pin, to connect described LC resonant circuit.
6, according to claim 5ly be used for the piezoelectric oscillator that high pressure is lit a lamp, it is characterized in that: described plectane base material and described two conductive layers are two groups, and by the serial or parallel connection in addition that goes between.
7, according to claim 1ly be used for the piezoelectric oscillator that high pressure is lit a lamp, it is characterized in that: described two conductive layers are for circular, and are respectively formed at the upper surface and the lower surface of the whole of described plectane base material or part.
8, according to claim 1ly be used for the piezoelectric oscillator that high pressure is lit a lamp, it is characterized in that: described two conductive layers are formed by elargol, copper cream or nickel cream.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810004732 CN101494942B (en) | 2008-01-23 | 2008-01-23 | Piezo-oscillator for high voltage lighting |
| RU2009100986/07A RU2446641C2 (en) | 2008-01-23 | 2009-01-15 | Piezoelectric resonant circuit of lamp lighting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810004732 CN101494942B (en) | 2008-01-23 | 2008-01-23 | Piezo-oscillator for high voltage lighting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101494942A true CN101494942A (en) | 2009-07-29 |
| CN101494942B CN101494942B (en) | 2013-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810004732 Active CN101494942B (en) | 2008-01-23 | 2008-01-23 | Piezo-oscillator for high voltage lighting |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112915895A (en) * | 2021-01-27 | 2021-06-08 | 马小英 | But coating manufacturing of automatic adjustment rotational speed is with raw materials mixing device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2113459B (en) * | 1982-01-14 | 1985-09-18 | Standard Telephones Cables Ltd | Piezo-electric ceramic couplers |
| JP2001315328A (en) * | 2000-05-08 | 2001-11-13 | Fuji Xerox Co Ltd | Driver for ink jet recorder |
| US6342753B1 (en) * | 2000-09-25 | 2002-01-29 | Rockwell Technologies, Llc | Piezoelectric transformer and operating method |
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2008
- 2008-01-23 CN CN 200810004732 patent/CN101494942B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112915895A (en) * | 2021-01-27 | 2021-06-08 | 马小英 | But coating manufacturing of automatic adjustment rotational speed is with raw materials mixing device |
| CN112915895B (en) * | 2021-01-27 | 2023-03-17 | 山东蓝天新材料科技有限公司 | But coating manufacturing of automatic adjustment rotational speed is with raw materials mixing device |
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| Publication number | Publication date |
|---|---|
| CN101494942B (en) | 2013-06-26 |
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