Insecticidal device

Abstract

The invention discloses an insect killing device. The device comprises a power supply, a power supply adjusting unit and a processing chamber, the treatment chamber comprises a high-voltage electrode, a grounding electrode and an insulating column; the insulating column is connected with the high-voltage electrode and the grounding electrode so that the high-voltage electrode and the grounding electrode can be arranged in parallel. A to-be-insecticidal material is placed between the high-voltage electrode and the grounding electrode; the power supply adjusting unit is electrically connected with the power supply and the high-voltage electrode and is used for receiving a first voltage signal input by the power supply, converting the first voltage signal into a second voltage signal through amplitude and frequency adjustment and inputting the second voltage signal to the high-voltage electrode; the grounding electrode is grounded; and the high-voltage electrode receives the second voltage signal and forms an electric field between the high-voltage electrode and the grounding electrode so as to perform insecticidal treatment on the to-be-insecticidal material. According to the technical scheme, the stable high-voltage pulse electric field is generated through the pest killing device, pests are treated through the high-voltage pulse electric field, efficient killing is achieved, potential hazards of chemical agents to the environment and food safety are avoided, and grain and ecological environment protection is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of physical pest control, and in particular to an insecticidal device. Background Art

[0002] In modern agriculture and grain storage management, the control of grain storage pests has always been an important and challenging task. Traditional pest control methods mainly rely on chemical pesticides, which are effective but may have adverse effects on the environment and human health in long-term use. In addition, the use of chemical pesticides may also lead to pest resistance, reducing the effectiveness of control. Summary of the invention

[0003] The invention provides an insecticidal device to solve the problems that the existing insecticidal technology is harmful to the ecological environment and has low efficiency.

[0004] An insecticidal device provided according to the present invention comprises: a power supply, a power supply adjustment unit and a processing chamber;

[0005] The treatment chamber includes a high-voltage electrode, a grounding electrode and an insulating column; the insulating column is respectively connected to the high-voltage electrode and the grounding electrode so that the high-voltage electrode and the grounding electrode are arranged in parallel; the insecticide material to be killed is placed between the high-voltage electrode and the grounding electrode;

[0006] The power adjustment unit is electrically connected to the power supply and the high-voltage electrode respectively, and is used to receive a first voltage signal input from the power supply and convert it into a second voltage signal after adjusting the amplitude and frequency and input to the high-voltage electrode;

[0007] The ground electrode is grounded; the high-voltage electrode receives the second voltage signal and forms an electric field between the high-voltage electrode and the ground electrode to perform insecticidal treatment on the insecticidal material.

[0008] Optionally, the electric field strength E between the high voltage electrode and the ground electrode, the distance H between the high voltage electrode and the ground electrode, and the voltage amplitude U of the second voltage signal satisfy E=U / H.

[0009] Optionally, the insulating pillars include at least two; and each insulating pillar has the same size.

[0010] Optionally, the projection of each insulating column on the plane where the high-voltage electrode is located contacts the edge of the high-voltage electrode.

[0011] Optionally, the high voltage electrode includes a first surface and a second surface; the first surface, the second surface and the ground electrode are all parallel;

[0012] The first surface and the second surface are connected by a rounded structure.

[0013] Optionally, a projection of the grounding electrode on the plane where the high-voltage electrode is located covers the high-voltage electrode.

[0014] Optionally, the shortest distance L from the projection center of the high-voltage electrode to the edge of the plane where the ground electrode is located and the spacing H between the high-voltage electrode and the ground electrode satisfy L>5H.

[0015] Optionally, the power supply includes a voltage regulator; the power supply adjustment unit includes a pulse power supply and a frequency adjustment unit;

[0016] The voltage regulator is electrically connected to the pulse power supply, and is used to receive the first voltage signal and convert it into a third voltage signal after amplitude adjustment and input it into the pulse power supply;

[0017] The pulse power supply is electrically connected to the frequency adjustment unit and the high voltage electrode respectively, and is used for receiving the third voltage signal and converting it into a second voltage signal by adjusting the frequency through the frequency adjustment unit.

[0018] Optionally, the insecticidal device further comprises a protective resistor;

[0019] The protection resistor is arranged in series between the pulse power supply and the high voltage electrode.

[0020] Optionally, the processing chamber further comprises a housing;

[0021] The shell is made of insulating material and comprises a containing space; the high voltage electrode, the grounding electrode and the insulating column are all arranged in the containing space.

[0022] The technical solution of the present invention generates a stable high-voltage pulse electric field through an insecticidal device, and treats pests through the high-voltage pulse electric field, thereby achieving efficient killing; compared with chemical insecticides in the prior art, the insecticidal device in the embodiment of the present invention is more environmentally friendly, has no pesticide residue, avoids the potential harm of chemical agents to the environment and food safety, and helps to protect food and the ecological environment; the insecticidal device in the embodiment of the present invention has a simple structure, is easy to operate and maintain, and improves convenience and reliability in actual use.

[0023] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 is a structural connection diagram of an insecticidal device provided according to an embodiment of the present invention;

[0026] Figure 2 It is a cross-sectional schematic diagram of a high voltage electrode provided according to an embodiment of the present invention. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0028] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0029] Figure 1 1 is a structural connection diagram of an insecticide device provided according to an embodiment of the present invention. Figure 1 As shown, the insecticidal device comprises: a power supply 1, a power supply adjustment unit 2 and a processing chamber 3;

[0030] The treatment chamber 3 includes a high voltage electrode 31, a ground electrode 32 and an insulating column 33; the insulating column 33 connects the high voltage electrode 31 and the ground electrode 32 respectively so that the high voltage electrode 31 and the ground electrode 32 are arranged in parallel; the insecticide material to be killed is placed between the high voltage electrode 31 and the ground electrode 32;

[0031] The power adjustment unit 2 is electrically connected to the power supply 1 and the high-voltage electrode 31 respectively, and is used to receive the first voltage signal input by the power supply 1 and convert it into a second voltage signal after adjusting the amplitude and frequency and input it to the high-voltage electrode 31;

[0032] The ground electrode 32 is grounded; the high voltage electrode 31 receives the second voltage signal and forms an electric field between the high voltage electrode 31 and the ground electrode 32 to perform insecticidal treatment on the insecticidal material.

[0033] The power supply 1 can be used to provide current to the insecticidal device to generate an electric field. The power supply adjustment unit 2 can change the amplitude and frequency of the voltage signal so that the processing chamber 3 generates a corresponding electric field strength and frequency. Specifically, the power supply 1 outputs a first voltage signal to the power supply adjustment unit 2, and the power supply adjustment unit 2 adjusts the amplitude and frequency of the first voltage signal and converts it into a second voltage signal and inputs it into the processing chamber 3.

[0034] The processing chamber 3 includes a high-voltage electrode 31, a grounding electrode 32 and an insulating column 33. The insulating column 33 is made of insulating material and connects the high-voltage electrode 31 and the grounding electrode 32 so that the high-voltage electrode 31 and the grounding electrode 32 are arranged in parallel. The high-voltage electrode 31 is electrically connected to the power adjustment unit 2, and the grounding electrode 32 is grounded, so that an electric field with air as a medium is formed between the high-voltage electrode 31 and the ground. When the insecticide material is placed between the high-voltage electrode 31 and the grounding electrode 32, the pests are killed by the action of the electric field. Exemplarily, the processing chamber 3 is composed of a high-voltage electrode 31 of a circular copper plate and a grounding electrode 32 of a square steel plate, with the circular copper plate on the top and the square steel plate on the bottom. The circular copper plate electrode is connected to the power adjustment unit 2, and the square steel plate electrode is connected to the ground. Air is used as the medium between the plates. Through the high-voltage pulse electric insecticide device, the pulse current output by the pulse power supply 21 is controlled by the voltage regulator, and the required pulse electric field is generated by the plates in the processing chamber 3. Pests are killed by the pulse electric field, achieving a good insecticidal effect under certain electric field parameters, with high safety and good environmental protection effect.

[0035] Exemplarily, the power supply 1 can output a first voltage signal with a voltage range of 0-220V and a frequency of 50Hz, and the power supply adjustment unit 2 receives the first voltage signal, adjusts the first voltage signal to a second voltage signal with a voltage range of 0-20kV and a frequency range of 5-20kHz, and inputs it into the high-voltage electrode 31. A high-voltage pulse electric field is formed between the high-voltage electrode 31 and the ground electrode 32 with air as the medium to kill insects on the insecticidal material disposed between the high-voltage electrode 31 and the ground electrode 32.

[0036] The technical solution of the embodiment of the present invention generates a stable high-voltage pulse electric field through an insecticidal device, and treats pests through the high-voltage pulse electric field, thereby achieving efficient killing; compared with chemical insecticides in the prior art, the insecticidal device in the embodiment of the present invention is more environmentally friendly, has no pesticide residue, avoids the potential harm of chemical agents to the environment and food safety, and helps to protect food and the ecological environment; the insecticidal device in the embodiment of the present invention has a simple structure, is easy to operate and maintain, and improves convenience and reliability in actual use.

[0037] Optional, continue to refer to Figure 1As shown, the electric field strength E between the high voltage electrode 31 and the ground electrode 32, the distance H between the high voltage electrode 31 and the ground electrode 32, and the voltage amplitude U of the second voltage signal satisfy E=U / H.

[0038] Among them, the distance between the high-voltage electrode 31 and the ground electrode 32 and the voltage amplitude of the second voltage signal will affect the electric field strength E. The distance H between the high-voltage electrode 31 and the ground electrode 32 can be achieved by replacing the insulating pillars 33 of different sizes, and the voltage amplitude U of the second voltage signal can be achieved by adjusting the power supply adjustment unit 2. In the embodiment of the present invention, a suitable electric field strength can be selected according to the type of insecticidal material, and the distance H between the high-voltage electrode 31 and the ground electrode 32 and the voltage amplitude U of the second voltage signal can be adjusted according to the electric field strength E to ensure the effectiveness of the insecticidal device.

[0039] The technical solution of the embodiment of the present invention ensures that the electric field strength E between the high-voltage electrode 31 and the ground electrode 32, the distance H between the high-voltage electrode 31 and the ground electrode 32, and the voltage amplitude U of the second voltage signal satisfy E=U / H. When the required electric field strength is known, the distance H between the high-voltage electrode 31 and the ground electrode 32 and / or the voltage amplitude U of the second voltage signal are adjusted to make the electric field strength meet the required value, thereby ensuring the insecticidal effectiveness of the insecticidal device and improving the adjustability and efficiency of the insecticidal device.

[0040] Optional, continue to refer to Figure 1 As shown, the insulating pillars 33 include at least two; and each insulating pillar 33 has the same size.

[0041] At least two insulating columns 33 may be disposed between the high voltage electrode 31 and the ground electrode 32 to ensure connection stability and parallelism between the high voltage electrode 31 and the ground electrode 32 .

[0042] For example, Figure 1 Three insulating columns 33 are provided in the middle. The three insulating columns 33 have the same size and are distributed between the high-voltage electrode 31 and the grounding electrode 32, thereby ensuring the connection stability between the high-voltage electrode 31 and the grounding electrode 32, and also ensuring the parallelism between the high-voltage electrode 31 and the grounding electrode 32.

[0043] In some embodiments, the projection of each insulating column 33 on the plane where the high-voltage electrode 31 is located is also arranged to contact the edge of the high-voltage electrode 31. In this way, each insulating column 33 is connected to the edge of the high-voltage electrode 31, which facilitates the placement of the insecticidal material in the electric field of the high-voltage electrode 31 and the grounding electrode 32, prevents the position of the insulating column 33 from affecting the placement of the insecticidal material, ensures the uniformity of the electric field at the location of the insecticidal material, and improves the insecticidal effect.

[0044] The technical solution of the embodiment of the present invention ensures that the high-voltage electrode 31 and the grounding electrode 32 are arranged in parallel, and the connection stability between the high-voltage electrode 31 and the grounding electrode 32 is ensured, thereby improving the reliability of the insecticide device.

[0045] Optional, Figure 2 is a cross-sectional schematic diagram of a high voltage electrode provided according to an embodiment of the present invention, combined with Figure 1 and Figure 2 As shown, the high voltage electrode 31 includes a first surface 311 and a second surface 312; the first surface 311, the second surface 312 and the ground electrode 32 are all parallel;

[0046] The first surface 311 and the second surface 312 are connected by a rounded structure.

[0047] The first surface 311 and the second surface 312 may be the upper surface and the lower surface of the high-voltage electrode 31, respectively. The first surface 311 is parallel to the ground electrode 32, and the second surface 312 is parallel to the ground electrode 32. In order to avoid corona discharge and other phenomena during the operation of the high-voltage electrode 31, the side of the high-voltage electrode 31 is rounded to ensure the reliability and safety of the insecticide device during operation.

[0048] The technical solution of the embodiment of the present invention is to connect the first surface 311 and the second surface 312 of the high-voltage electrode 31 through a chamfered structure, so as to smooth the edge of the high-voltage electrode 31 and avoid corona discharge of the high-voltage electrode 31 during operation.

[0049] Optional, continue to refer to Figure 1 As shown, the projection of the ground electrode 32 on the plane where the high voltage electrode 31 is located covers the high voltage electrode 31 .

[0050] Among them, since the high-voltage electrode 31 is charged and the grounding electrode 32 is grounded, the projection of the grounding electrode 32 on the plane where the high-voltage electrode 31 is located is set to cover the high-voltage electrode 31, ensuring that an electric field can be formed at the corresponding position of the grounding electrode 32 in the charged area of ​​the high-voltage electrode 31, ensuring that there is a sufficient uniform electric field area between the high-voltage electrode 31 and the grounding electrode 32.

[0051] In some embodiments, the area of ​​the grounding electrode 32 is set to be more than 1.5 times the area of ​​the high-voltage electrode 31 to ensure that the projection of the grounding electrode 32 on the plane where the high-voltage electrode 31 is located covers the high-voltage electrode 31. In the charged area of ​​the high-voltage electrode 31, an electric field can be formed at the corresponding position of the grounding electrode 32 to ensure that there is a sufficient uniform electric field area between the high-voltage electrode 31 and the grounding electrode 32.

[0052] The technical solution of the embodiment of the present invention is to set the projection of the grounding electrode 32 on the plane where the high-voltage electrode 31 is located to cover the high-voltage electrode 31, thereby ensuring that an electric field can be formed at the corresponding position of the grounding electrode 32 within the charged area of ​​the high-voltage electrode 31, ensuring that there is a sufficient uniform electric field area between the high-voltage electrode 31 and the grounding electrode 32, thereby improving the reliability and insecticidal efficiency of the insecticidal device.

[0053] Optional, continue to refer to Figure 1 As shown, the shortest distance L from the projection center of the high voltage electrode 31 to the edge of the plane where the ground electrode 32 is located and the spacing H between the high voltage electrode 31 and the ground electrode 32 satisfy L>5H.

[0054] Among them, the shortest distance L from the projection center of the high-voltage electrode 31 to the edge of the plane where the ground electrode 32 is located can characterize the size of the high-voltage electrode 31. For example, when the high-voltage electrode 31 is circular, L refers to the radius of the high-voltage electrode 31. The spacing H between the high-voltage electrode 31 and the ground electrode 32 refers to the vertical distance between the high-voltage electrode 31 and the ground electrode 32 along the height direction of the insulating column 33. Setting the shortest distance L from the projection center of the electrode to the edge of the plane where the ground electrode 32 is located and the spacing H between the high-voltage electrode 31 and the ground electrode 32 to satisfy L>5H can weaken the edge effect of the electrode and improve the uniformity of the electric field.

[0055] The technical solution of the embodiment of the present invention is to set the shortest distance L from the projection center of the high-voltage electrode 31 to the edge of the plane where the grounding electrode 32 is located and the spacing H between the high-voltage electrode 31 and the grounding electrode 32 to satisfy L>5H, so that the size of the high-voltage electrode 31 is larger than the spacing between the high-voltage electrode 31 and the grounding electrode 32, weakening the edge effect of the electrode, ensuring that the electric field in the treatment chamber 3 is as uniform as possible, and improving the effectiveness and reliability of the insecticide device.

[0056] Optional, continue to refer to Figure 1 As shown, the power supply 1 includes a voltage regulator 11; the power supply adjustment unit 2 includes a pulse power supply 21 and a frequency adjustment unit 22;

[0057] The voltage regulator 11 is electrically connected to the pulse power supply 21, and is used to receive the first voltage signal and convert it into a third voltage signal after amplitude adjustment and input it into the pulse power supply 21;

[0058] The pulse power supply 21 is electrically connected to the frequency adjustment unit 22 and the high voltage electrode 31 respectively, and is used to receive the third voltage signal and convert it into a second voltage signal by adjusting the frequency through the frequency adjustment unit 22 .

[0059] Among them, the voltage regulator 11 can be used to adjust the voltage amplitude, powered by the city power supply 1, and output an adjustable amplitude power frequency voltage, which plays the role of voltage regulation and power supply 1 isolation. The frequency adjustment unit 22 can be used to adjust the frequency of the voltage; the pulse power supply 21 can output a pulse voltage with a voltage of 0-20kV and a frequency of 5-20kHz, which is used to provide the voltage excitation required for electric field insecticide for the treatment chamber 3. The voltage regulator 11 is electrically connected to the power supply 1 and the pulse power supply 21 respectively, and the pulse power supply 21 is electrically connected to the frequency adjustment unit 22 and the high-voltage electrode 31 respectively. The voltage regulator 11 receives the first voltage signal and converts it into a third voltage signal after amplitude adjustment and inputs it into the pulse power supply 21. The pulse power supply 21 receives the third voltage signal and converts it into a second voltage signal by adjusting the frequency through the frequency adjustment unit 22.

[0060] Exemplarily, the power supply 1 can output a first voltage signal with a voltage range of 0-220V and a frequency of 50Hz to the voltage regulator 11 and form a third voltage signal after adjustment. The pulse power supply 21 adjusts the third voltage signal to a second voltage signal with a voltage range of 0-20kV and a frequency range of 5-20kHz and inputs it into the high-voltage electrode 31.

[0061] Specifically, the circuit connection and insecticide operation steps are as follows:

[0062] Step 1, connect the voltage regulator 11 to the power supply 1 and connect it to the pulse power supply 21, and connect the pulse power supply 21 to the high voltage electrode 31 of the processing chamber 3, and the pulse power supply 21 and the grounding electrode 32 in the processing chamber 3 are grounded.

[0063] Step 2: placing the insecticide material between the high voltage electrode 31 and the ground electrode 32 in the treatment chamber 3.

[0064] Step 3, adjust the distance between the high-voltage electrode 31 and the ground electrode 32, and adjust the output parameters of the pulse power supply 21. The insecticidal electric field frequency is adjusted by the pulse power supply 21, and the electric field strength is adjusted by the distance between the high-voltage electrode 31 and the ground electrode 32 and the voltage amplitude output by the pulse power supply 21, which is specifically adjusted according to the following formula:

[0065] E=U / d

[0066] E is the electric field strength of the pulse electric field; U is the voltage amplitude output by the pulse power supply 21; and H is the distance between the two plates.

[0067] Step 4, start the power supply 1, and turn off the pulse power supply 21 after reaching the predetermined insecticidal time.

[0068] Step 5, after the killing is completed, the high voltage electrode 31 is grounded, and after 3 minutes, the insecticide material is taken out and the insect bodies in the treatment chamber 3 are cleaned.

[0069] The technical solution of the embodiment of the present invention is to set a voltage regulator 11, a pulse power supply 21 and a frequency adjustment unit 22 in the power adjustment unit 2, electrically connect the voltage regulator 11 with the pulse power supply 21, and electrically connect the pulse power supply 21 with the frequency adjustment unit 22 and the high-voltage electrode 31 respectively, so that the city power supply 1 can be regulated by the voltage regulator 11 and the pulse power supply 21 to become a high-voltage pulse power supply 21, thereby generating a high-voltage pulse electric field to kill insects. At the same time, the voltage regulator 11 can play an isolation role, ensure the stability of the ground power input, provide reliable power support for the subsequent pulse power supply 21 and adjust the input voltage.

[0070] Optional, continue to refer to Figure 1 As shown, the insecticidal device also includes a protective resistor 4;

[0071] The protection resistor 4 is arranged in series between the pulse power supply 21 and the high voltage electrode 31 .

[0072] Among them, the protection resistor 4 is arranged in series between the pulse power supply 21 and the high-voltage electrode 31 for the purpose of achieving electrical isolation and safety protection. One side of the protection resistor 4 is connected to the high-voltage output of the pulse power supply 21, and the other side is connected to the high-voltage electrode 31 of the processing chamber 3, which can effectively prevent the high-voltage current from causing damage to the equipment and operators, while ensuring the safe operation of the device. In some embodiments, the protection resistor 4 is set to 20MΩ.

[0073] In some embodiments, the insecticidal device further includes an oscilloscope 23. The oscilloscope 23 is electrically connected to the pulse power supply 21, and the oscilloscope 23 can receive and display the second voltage signal, so that the operator can control the frequency adjustment unit 22 to adjust the frequency of the second voltage signal according to the second voltage signal displayed by the oscilloscope 23 to ensure effective insecticidal treatment in the treatment chamber 3.

[0074] The technical solution of the embodiment of the present invention is to set a protective resistor 4 in the insecticidal device, and the protective resistor 4 is set in series between the pulse power supply 21 and the high-voltage electrode 31, so as to effectively prevent the high-voltage current from causing damage to the equipment and operators, while ensuring the safe operation of the device and improving the safety of the insecticidal process.

[0075] Optional, continue to refer to Figure 1 As shown, the processing chamber 3 also includes a housing 34;

[0076] The housing 34 is made of insulating material and includes a receiving space; the high voltage electrode 31, the grounding electrode 32 and the insulating column 33 are all arranged in the receiving space.

[0077] The processing chamber 3 may be composed of an insulating epoxy board, which covers the surface of the processing chamber 3 and provides electrical insulation to ensure safe operation. The insulating processing chamber 3 shell 34 can effectively prevent electric field leakage and protect equipment and operators from the influence of high voltage current.

[0078] It can be understood that the technical solution of the embodiment of the present invention first places the insecticide material in parallel high-voltage electrodes and ground electrodes, and then applies 0kV-20kV voltage to the high-voltage electrode to form a high-voltage pulse electric field through the air between the electrodes. The pests under the action of the electric field are completely affected by the high-voltage pulse electric field and are completely killed. This can replace the use of pesticides and efficiently kill pests in storage warehouses, so that there is no pesticide residue in stored grains, etc., ensuring the safety of agricultural products, and achieving the purpose of protecting the environment. The insecticide device of the embodiment of the present invention has a reasonable structure, is easy to operate, and is environmentally friendly and efficient. The high-voltage pulse electric field insecticide device and insecticide method can meet the needs of modern storage environments for pest control and have significant advantages in environmental protection and safety.

[0079] The technical solution of the embodiment of the present invention generates a stable high-voltage pulse electric field through an insecticidal device, and treats pests through the high-voltage pulse electric field, thereby achieving efficient killing; compared with chemical insecticides in the prior art, the insecticidal device in the embodiment of the present invention is more environmentally friendly, has no pesticide residue, avoids the potential harm of chemical agents to the environment and food safety, and helps to protect food and the ecological environment; the insecticidal device in the embodiment of the present invention has a simple structure, is easy to operate and maintain, and improves convenience and reliability in actual use.

[0080] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0081] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An insecticidal device, characterized in that: include: power supplies, power conditioning units and processing chambers; The treatment chamber comprises a high-voltage electrode, a grounding electrode and an insulating column; the insulating column connects the high-voltage electrode and the grounding electrode respectively so that the high-voltage electrode and the grounding electrode are arranged in parallel; the insecticide material to be killed is placed between the high-voltage electrode and the grounding electrode; The power adjustment unit is electrically connected to the power supply and the high-voltage electrode respectively, and is used to receive a first voltage signal input by the power supply and convert it into a second voltage signal after adjusting the amplitude and frequency and input it to the high-voltage electrode; The ground electrode is grounded; the high-voltage electrode receives the second voltage signal and forms an electric field between the high-voltage electrode and the ground electrode to perform insecticidal treatment on the insecticidal material.

2. The insecticidal device according to claim 1, characterized in that: The electric field strength E between the high-voltage electrode and the ground electrode, the distance H between the high-voltage electrode and the ground electrode, and the voltage amplitude U of the second voltage signal satisfy E=U / H.

3. The insecticidal device according to claim 1, characterized in that: The insulating pillars include at least two; each of the insulating pillars has the same size.

4. The insecticidal device according to claim 3, characterized in that: The projection of each of the insulating pillars on the plane where the high-voltage electrode is located contacts the edge of the high-voltage electrode.

5. The insecticidal device according to claim 1, characterized in that: The high voltage electrode comprises a first surface and a second surface; the first surface, the second surface and the ground electrode are all parallel; The first surface and the second surface are connected by a rounded structure.

6. The insecticidal device according to claim 1, characterized in that: The projection of the ground electrode on the plane where the high-voltage electrode is located covers the high-voltage electrode.

7. The insecticidal device according to claim 1, characterized in that: The shortest distance L from the projection center of the high-voltage electrode to the edge of the plane where the ground electrode is located and the spacing H between the high-voltage electrode and the ground electrode satisfy L>5H.

8. The insecticidal device according to claim 1, characterized in that: The power supply includes a voltage regulator; the power supply adjustment unit includes a pulse power supply and a frequency adjustment unit; The voltage regulator is electrically connected to the pulse power supply, and is used to receive the first voltage signal and convert it into a third voltage signal after amplitude adjustment and input it into the pulse power supply; The pulse power supply is electrically connected to the frequency adjustment unit and the high voltage electrode respectively, and is used to receive the third voltage signal and convert it into the second voltage signal by adjusting the frequency through the frequency adjustment unit.

9. The insecticidal device according to claim 8, characterized in that The insecticidal device also includes a protective resistor; The protection resistor is arranged in series between the pulse power supply and the high voltage electrode.

10. The insecticidal device according to claim 1, characterized in that: The processing chamber also includes a housing; The shell is made of insulating material and comprises a containing space; the high voltage electrode, the grounding electrode and the insulating column are all arranged in the containing space.

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