CN103181313B - A device that uses high voltage to generate an electric arc to kill bacterial colonies on plant leaves - Google Patents

Abstract

The invention discloses a device for killing bacterial colonies on plant leaves by using high voltage to generate electric arcs. Including probe and portable high-voltage power supply; probe: including copper pointed electrode, marking ring, vinyl sleeve, transparent sleeve and insulating support tube; the cylindrical part of copper pointed electrode is covered with vinyl sleeve, vinyl sleeve Put an insulating support tube on the outside of the tube, and the insulating support tube forms a threaded fit with the transparent sleeve to realize the relative movement between the transparent sleeve and the copper pointed electrode. One end of the support tube is connected, and the marking ring cooperates with the length scale on the transparent casing to show the position of the copper pointed electrode; the probe is connected to a portable high-voltage power supply. The invention can treat each diseased crop in a targeted manner, effectively reduces the waste of pesticides, optimizes the use of pesticides to a certain extent, and has certain positive effects on environmental protection.

Description

A device that uses high voltage to generate an electric arc to kill bacterial colonies on plant leaves

technical field

The invention relates to a sterilization device, in particular to a device for killing bacterial colonies on plant leaves by using high voltage to generate electric arcs.

Background technique

In the past, the method of dealing with crop diseases was mainly to use traditional pesticides. However, after spraying pesticides, if individual crops still have symptoms, they are usually ignored. However, if the diseases spread, it will cause adverse consequences such as crop yield reduction. Some conservative Farmers may choose to spray their entire crops with pesticides. In this way, it often appears to be relatively passive, and it also causes a waste of pesticides. Excessive pesticide residues on the soil surface will cause soil compaction, and pesticide residues on crops will also pose a threat to food safety, but in order to ensure the yield of crops, pesticides have to be used.

Contents of the invention

The purpose of the present invention is to provide a device that uses high voltage to generate electric arcs to kill bacterial colonies on plant leaves, aiming at reducing and optimizing the use of pesticides and reducing the negative impact of pesticides on the environment and food safety.

In order to achieve the above object, the technical scheme adopted in the present invention is:

The invention includes a probe and a portable high-voltage power supply; the probe includes a copper pointed electrode, a marking ring, a vinyl sleeve, a transparent sleeve and an insulating support tube; the outer cylinder of the copper pointed electrode is covered with a vinyl sleeve, The insulating support tube is put on the outside of the vinyl sleeve, and the insulating support tube and the transparent sleeve form a thread fit to realize the relative movement between the transparent sleeve and the copper pointed electrode. The appearance of the marking ring is a red cylinder set at the root of the copper pointed electrode. The body part is connected with one end of the insulating support tube, and the marking ring cooperates with the length scale on the transparent sleeve to display the position of the copper pointed electrode; Portable high-voltage power supply: including dry batteries as DC power supply, DC conversion circuit, rectification circuit, Trigger circuit, energy storage circuit and transformer step-up circuit.

The DC conversion circuit includes a bipolar transistor Q1, a bipolar transistor Q3 and a closed magnetic ring pulse transformer T5, the emitters of the bipolar transistors Q1 and Q3 are connected to the positive pole of the DC power supply BT1, and the primary coil of the closed magnetic ring pulse transformer L1 and L2 are respectively connected to the collectors of the bipolar transistors Q1 and Q3, and the secondary coils L4 and L5 of the closed magnetic ring pulse transformer T5 are respectively connected to the bases of the bipolar transistors Q1 and Q3. In the rectification circuit described above, the AC pulse power output by the secondary coil L3 of the closed magnetic ring transformer T5 is rectified through a bridge-type uncontrolled rectification circuit composed of a rectifier bridge D3.

In the trigger circuit, a multivibrator circuit composed of a 555 timer, resistor R3, resistor R4 and capacitor C4 outputs a pulse control signal to control the one-way thyristor Q2 in the energy storage circuit to turn on and off.

The energy storage circuit is composed of a one-way thyristor Q2, a capacitor C1 and a resistor R1. .

The transformer step-up circuit is composed of four closed magnetic ring pulse transformers T1-T4, the primary coils of the four transformers T1-T4 are connected in parallel, and the secondary coils are connected in series.

The beneficial effects that the present invention has are:

The agricultural portable plant disease removal device can treat each diseased crop in a targeted manner, effectively reduce the waste of pesticides, optimize the use of pesticides to a certain extent, and have a certain positive effect on environmental protection .

Description of drawings

Fig. 1 is a structural schematic diagram of the device of the present invention.

FIG. 2 is an enlarged sectional view of A in FIG. 1 .

Fig. 3 is a basic principle block diagram of the portable high-voltage power supply of the device of the present invention.

Fig. 4 is a working diagram of the device of the present invention.

Fig. 5 is a circuit diagram of a portable high-voltage power supply of the device of the present invention.

In the figure: 1. Probe, 2. Power cord, 3. Portable high voltage power supply, 4. Plant leaf, 5. Colony, 11. Copper pointed electrode, 12. Marking ring, 13. Vinyl sleeve, 14. Transparent Sleeve, 15, insulating support pipe.

Detailed ways

The present invention will be further described below in conjunction with drawings and embodiments.

As shown in Figures 1 and 2, the present invention includes a probe 1 and a portable high-voltage power supply 3; the probe 1: includes a copper pointed electrode 11, a marking ring 12, a vinyl sleeve 13, a transparent sleeve 14 and an insulating support tube 15 ; The cylindrical part of the copper pointed electrode 11 is covered with vinyl casing 13, and the vinyl casing 13 is covered with an insulating support tube 15, and the insulating support tube 15 and the transparent sleeve 14 form a screw fit, so that the transparent sleeve 14 and For the relative movement of the copper pointed electrode, the outer surface of the transparent sleeve 14 is marked with a length scale in mm, and the appearance of the marking ring 12 is a red cylinder that is placed on the root of the copper pointed electrode 11 and connected to the insulating support tube 15 One end of the tube is connected, and the marking ring 12 cooperates with the length scale on the transparent sleeve 14 to show the position of the copper pointed electrode 11 . the

Figure 3 is a basic principle block diagram of a portable high-voltage power supply. The 6V direct current passes through a direct current conversion circuit to form a high-frequency oscillation to generate an alternating current square wave voltage, which is then boosted by a closed magnetic ring pulse transformer, and then passed through the rectifier bridge D3 to convert The pulse voltage is rectified into direct current, and the trigger circuit controls the turn-on and turn-off of the one-way thyristor Q2 to control the energy storage state of the capacitor in the energy storage circuit, and finally outputs high-voltage pulse electricity to the probe through the closed magnetic ring transformer boost circuit.

As shown in Figure 5, the DC conversion circuit includes a bipolar transistor Q1, a bipolar transistor Q3 and a closed magnetic ring pulse transformer T5, the emitters of the bipolar transistors Q1 and Q3 are connected to the positive pole of the DC power supply BT1, and the closed magnetic ring The primary coils L1 and L2 of the ring pulse transformer are connected to the collectors of the bipolar transistors Q1 and Q3, and the secondary coils L4 and L5 of the closed magnetic ring pulse transformer T5 are respectively connected to the bases of the bipolar transistors Q1 and Q3. When the switch S1 is closed, the emitters of the transistor Q1 and the transistor Q3 are connected to the DC power supply, and under the action of the secondary winding L4 and L5 of the transformer T5, the transistor Q1 and the transistor Q3 are turned on in turn, and on the secondary winding L3 of the transformer T5 An alternating pulse voltage is obtained.

In the rectification circuit described above, the AC pulse power output by the secondary coil L3 of the closed magnetic ring transformer T5 is rectified through a bridge-type uncontrolled rectification circuit composed of a rectifier bridge D3. In the trigger circuit, a multivibrator circuit composed of a 555 timer, resistor R3, resistor R4 and capacitor C4 outputs a pulse control signal to control the one-way thyristor Q2 in the energy storage circuit to turn on and off. . The energy storage circuit is composed of a one-way thyristor Q2, a capacitor C1 and a resistor R1, and the capacitor C1 is charged and discharged by turning on and off the one-way thyristor. The transformer step-up circuit is composed of four closed magnetic ring pulse transformers T1 ~ T4, the primary coils of the four transformers T1 ~ T4 are connected in parallel, and the secondary coils are connected in series, so that the alternating pulse voltage passes through the four closed magnetic ring pulses The step-by-step step-up of the transformer finally achieves the purpose of outputting high-voltage pulse electricity.

As shown in Figure 5, it is a circuit diagram of a portable high-voltage power supply. The 6V DC is converted into an alternating pulse voltage through the bipolar transistors Q1 and Q3 in the DC conversion circuit, boosted by the closed magnetic ring pulse transformer T5, and then passed through the rectifier bridge. D3 rectifies to form a direct current. At this time, the trigger circuit generates a pulse control signal to control the one-way thyristor Q2 in the energy storage circuit to turn on and off, so as to realize the charging and discharging of the capacitor C1 in the energy storage circuit, and then through the step-up circuit of the transformer The closed magnetic ring pulse transformer generates 30kV high-voltage pulse electricity, and the probe outputs 30kV high-voltage pulse electricity for a short time through the power line.

As shown in Figure 4, it is a schematic diagram of the work of the device of the present invention, 1, a probe, 4, a plant leaf, 5, a colony. When it is found that there are colonies 5 on the leaves or stems of the crops, at first the plant leaves 4 with colonies 5 are grounded through the wires with clamps, and then approached with the probe 1, and the copper in the probe 1 is adjusted through the insulating support tube 15. The position of the pointed electrode 11 is used to find the appropriate electric field strength to kill the above bacteria or fungi.

Claims (1)

1. A device that utilizes high voltage to generate electric arcs to kill bacterial colonies on plant leaves, characterized in that it includes a probe (1) and a portable high-voltage power supply (3); probe (1): includes a copper pointed electrode (11) , marking ring (12), vinyl sleeve (13), transparent sleeve (14) and insulating support tube (15); the cylinder part of the copper pointed electrode (11) is covered with vinyl sleeve (13), An insulating support tube (15) is placed on the outside of the vinyl sleeve (13), and the insulating support tube (15) forms a thread fit with the transparent sleeve (14) to realize the relative movement between the transparent sleeve (14) and the copper pointed electrode. The appearance of the marking ring (12) is a red cylinder that is placed on the root of the copper pointed electrode (11) and connected to one end of the insulating support tube (15). The length of the marking ring (12) and the transparent sleeve (14) The scale cooperates to display the position of the copper pointed electrode (11); the portable high-voltage power supply (3): includes a dry battery as a DC power supply, a DC conversion circuit, a rectifier circuit, a trigger circuit, an energy storage circuit and a transformer boost circuit; The DC conversion circuit includes a bipolar transistor Q1, a bipolar transistor Q3 and a closed magnetic ring pulse transformer T5, the emitters of the bipolar transistors Q1 and Q3 are connected to the positive pole of the DC power supply BT1, and the primary coil of the closed magnetic ring pulse transformer L1 and L2 are connected to the collectors of the bipolar transistors Q1 and Q3, and the secondary coils L4 and L5 of the closed magnetic ring pulse transformer T5 are respectively connected to the bases of the bipolar transistors Q1 and Q3; The rectification circuit is composed of a rectification bridge D3 to form a bridge type uncontrolled rectification circuit; Described trigger circuit is made up of the multivibrator circuit that 555 timers, resistance R3, resistance R4, electric capacity C4 form; The energy storage circuit is composed of a one-way thyristor Q2, a capacitor C1, and a resistor R1; The transformer step-up circuit is composed of four closed magnetic ring pulse transformers T1-T4, the primary coils of the four transformers T1-T4 are connected in parallel, and the secondary coils are connected in series.

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