CN103721878A - High-voltage static electricity generator - Google Patents

Abstract

The present invention designs an electrostatic generator, which includes a power frequency power supply V1, a switch S1, an indicator light R, and also includes a discharge gap, an oscillating boost circuit and a voltage doubler rectifier circuit. One end of power frequency power supply V1 is connected to switch S1, and S1 is connected to indicator light R, followed by discharge gap. The oscillating boost circuit is connected in parallel at both ends of the discharge gap. The voltage doubler rectifier circuit is connected in parallel at both ends of the secondary side of the step-up transformer T1. The oscillating boost circuit is used to boost the power frequency 220V voltage to 4K volts. The voltage doubler rectifier circuit is used to increase the 4K volt voltage obtained by the oscillating booster circuit by 5 times to 20,000 volts. Due to the effective connection of the oscillating boost circuit and the voltage doubler rectifier circuit, the volume of the high-voltage electrostatic generator is greatly reduced, and the rapid spraying of the sprayer for small flowers is realized.

Description

A high voltage electrostatic generator

technical field

The invention relates to the field of high-voltage static electricity, in particular to the precise and rapid spraying of pesticides on small flowers.

Background technique

In recent years, small flowers have been commonly planted at home. The electrostatic generators in the past were large in size and were not suitable for electrostatic sprayers for spraying small flowers. In order to overcome the shortcomings of traditional detection methods, the object of the present invention is to propose a high-voltage electrostatic generator applied to small-scale flower pesticide application. The voltage doubling is realized through the series and parallel connection of capacitors and diodes, which reduces the volume. It is encapsulated with epoxy resin or soaked in transformer oil to prevent discharge to air and increase reliability. An indicator light is added to make the circuit status clear at a glance.

Contents of the invention

The technical scheme of the present invention is as follows. The electrostatic generator includes a power frequency power supply V1, a switch S1, an indicator light R, and also includes a discharge gap, an oscillation boost circuit and a voltage doubler rectification circuit. One end of the power frequency power supply V1 is connected to the switch S1, the indicator light R is connected to the S1, and the discharge gap is connected to the rear. The oscillating boost circuit is connected in parallel at both ends of the discharge gap. The voltage doubler rectifier circuit is connected in parallel at both ends of the secondary side of the step-up transformer T1. The oscillating boost circuit is used to boost the power frequency 220V voltage to 4K volts. The voltage doubler rectifier circuit is used to increase the 4K volt voltage obtained by the oscillating booster circuit by 5 times to 20,000 volts.

(1) Oscillating boost circuit. The oscillation boost circuit is composed of resistor Rl, capacitor Cl, thyristor X1, diodes D1, D2 and step-up transformer T1. Diodes D1 and D2 are connected in series, the anode is connected to the back of the indicator light R (one end of the discharge gap), the cathode is connected to the anode of the thyristor X1 and connected to the capacitor C1, the control pole of X1 is connected to the cathode of the diode D1 through R1, and the anode of the thyristor is connected to the discharge gap the other end of the The other end of the capacitor C1 is connected to the primary winding of the step-up transformer T1 and then connected to the anode of the thyristor X1.

(2), voltage doubler rectifier circuit. The voltage doubler rectifier circuit is composed of diodes D3-D7 and capacitors C2-C6. Diode D7 is connected in series with capacitor C4 in parallel with diode D6, then in series with capacitor C3, then in parallel with diode D5, in series with capacitor C5, in parallel with diode D4, in series with capacitor C2, in parallel with diode D3, and finally with capacitor C6 It is connected in series with the secondary winding of transformer T1.

After the switch S1 is closed, the diode Cl starts to charge, a charging current is generated in the primary winding of the step-up transformer T1, and an induced high voltage is generated in the secondary winding. When the diode Cl is fully charged, the thyristor X1 is triggered to conduct, and the diode Cl discharges the thyristor X1 through the primary winding of the step-up transformer T1, so that the thyristor X1 is turned on. Afterwards, the diode Cl starts to charge again, so that the thyristor X1 is intermittently turned on, and the above charge and discharge oscillation process is repeated, and a pulse high voltage of about 4K volts can be generated on the secondary winding of the step-up transformer T1. After the pulse high voltage is rectified by 5 times of voltage (diodes D3-D7 and C2-C6 are rectified by 5 times of voltage), a DC high voltage of 20kV is generated. After the high-voltage generator works, a discharge spark is generated in the discharge gap (the gap is adjustable), which can not only limit the output voltage from being too high, but also indicate the presence or absence of high voltage. After the entire circuit is installed, it should be encapsulated with epoxy resin or immersed in transformer oil to prevent discharge to air.

The high-voltage electrostatic generator should be installed on a small household sprayer, so the volume should be as small as possible. After the electrostatic generator is packaged, the installation aperture is 0.5cm, the center-to-hole distance is 5.5cm, and the shielded wire is drawn out. The length, width and height of the electrostatic generator are 6cm*3cm*3cm.

The beneficial effects of the invention are: the volume of the high-voltage electrostatic generator is greatly reduced through the effective connection of the oscillating boost circuit and the voltage doubler rectifier circuit, and the rapid spraying of the sprayer for small flowers is realized.

Description of drawings

Fig. 1 is a circuit block diagram of the present invention.

Fig. 2 is a schematic circuit diagram of the present invention.

The meanings of the marks in the drawings are as follows:

1—power frequency voltage, 2—oscillation booster circuit, 3—voltage doubler rectifier circuit, 4—discharge gap.

Detailed ways

The electrostatic generator includes a power frequency power supply V1, a switch S1, an indicator light R, and also includes a discharge gap, an oscillation boost circuit and a voltage doubler rectification circuit. One end of the power frequency power supply V1 is connected to the switch S1, the indicator light R is connected to the S1, and the discharge gap is connected to the rear. The oscillating boost circuit is connected in parallel at both ends of the discharge gap. The voltage doubler rectifier circuit is connected in parallel at both ends of the secondary side of the step-up transformer T1. The oscillating boost circuit is used to boost the power frequency 220V voltage to 4K volts. The voltage doubler rectifier circuit is used to increase the 4K volt voltage obtained by the oscillating booster circuit by 5 times to 20,000 volts.

(1), Oscillating boost circuit. The oscillation boost circuit is composed of resistor Rl, capacitor Cl, thyristor X1, diodes D1, D2 and step-up transformer T1. Diodes D1 and D2 are connected in series, the anode is connected to the back of the indicator light R (one end of the discharge gap), the cathode is connected to the anode of the thyristor X1 and connected to the capacitor C1, the control pole of X1 is connected to the cathode of the diode D1 through R1, and the anode of the thyristor is connected to the discharge gap the other end of the The other end of the capacitor C1 is connected to the primary winding of the step-up transformer T1 and then connected to the anode of the thyristor X1.

(2), voltage doubler rectifier circuit. The voltage doubler rectifier circuit is composed of diodes D3-D7 and capacitors C2-C6. Diode D7 is connected in series with capacitor C4 in parallel with diode D6, then in series with capacitor C3, then in parallel with diode D5, in series with capacitor C5, in parallel with diode D4, in series with capacitor C2, in parallel with diode D3, and finally with capacitor C6 It is connected in series with the secondary winding of transformer T1.

Charge the spray with this electrostatic generator:

First connect the device: first test the resistance with a multimeter. The capacitance values of C2-C6 should be as equal as possible to make the voltage doubler rectifier circuit generate 5 times the voltage. Connect the electronic components according to the circuit diagram, and weld them well, be careful not to weld them falsely.

Then power on the circuit, if the indicator light is on, it means that the circuit is intact and there is no solder joint. Install the high-voltage electrostatic generator on a small household electrostatic sprayer to spray.

Benefits of using this high voltage electrostatic generator:

1. High working efficiency.

2. Due to the electrostatic adsorption function, it saves medicine and water.

3. Long duration of drug effect. Using the traditional non-electrostatic sprayer, its drug effect time is shorter, usually 5-7 days. Using an electrostatic sprayer, due to the function of electrostatic adsorption, the density of the drug solution coverage increases accordingly, and the drug effect period can reach 10-15 days, thereby prolonging the drug effect period and reducing the number of medications.

4. Reduce environmental pollution. Due to the function of electrostatic adsorption, the amount of pesticides is low, the loss is small, the efficacy is long, and the number of spraying is reduced, which improves the environmental protection benefits.

5. Small size, easy to operate. The body of the sprayer equipped with an electrostatic generator is small and light, convenient, labor-saving and labor-saving, and middle-aged and elderly people can operate it freely.

6. Reduce pest damage. Due to the function of electrostatic adsorption, the damage of insect pests to crops is correspondingly reduced in the case of prolonging the efficacy period.

Claims (3)

1. a HV generator, comprises power frequency supply V1, switch S 1, indicator lamp R, discharging gap, step-up transformer T1, and power frequency supply V1 is connecting valve S1, indicator lamp R, discharging gap successively; It is characterized in that: also comprise oscillation step-up circuit, voltage doubling rectifing circuit; Oscillation step-up circuit is for being elevated to power frequency 220V voltage 4K volt; Voltage doubling rectifing circuit raises 5 times to 20,000 volts for the 4K volt voltage that oscillation step-up circuit is obtained; Oscillation step-up circuit is connected in parallel on discharging gap two ends; Voltage doubling rectifing circuit is connected in parallel on the secondary side two ends of step-up transformer T1.

2. a kind of HV generator according to claim 1, is characterized in that: this HV generator epoxy encapsulation or be immersed in transformer oil.

3. a kind of HV generator according to claim 2, is characterized in that: HV generator length and width are high is 6cm*3cm*3cm.

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