CN113197187A - Weeding device based on high-voltage discharge - Google Patents
Weeding device based on high-voltage discharge Download PDFInfo
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- CN113197187A CN113197187A CN202110440319.6A CN202110440319A CN113197187A CN 113197187 A CN113197187 A CN 113197187A CN 202110440319 A CN202110440319 A CN 202110440319A CN 113197187 A CN113197187 A CN 113197187A
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- 238000009333 weeding Methods 0.000 title claims abstract description 82
- 241000196324 Embryophyta Species 0.000 claims abstract description 57
- 239000003990 capacitor Substances 0.000 claims abstract description 38
- 238000004146 energy storage Methods 0.000 claims abstract description 34
- 239000002689 soil Substances 0.000 claims abstract description 21
- 238000007599 discharging Methods 0.000 claims description 6
- 230000000670 limiting effect Effects 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 4
- 230000008685 targeting Effects 0.000 claims 1
- 239000004009 herbicide Substances 0.000 description 8
- 239000000126 substance Substances 0.000 description 6
- 230000002363 herbicidal effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000002829 reductive effect Effects 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 241000238631 Hexapoda Species 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- 206010059866 Drug resistance Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 235000013601 eggs Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002147 killing effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000004162 soil erosion Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M21/00—Apparatus for the destruction of unwanted vegetation, e.g. weeds
- A01M21/04—Apparatus for destruction by steam, chemicals, burning, or electricity
- A01M21/046—Apparatus for destruction by steam, chemicals, burning, or electricity by electricity
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- Environmental Sciences (AREA)
- Catching Or Destruction (AREA)
Abstract
The invention discloses a weeding device based on high-voltage discharge, which belongs to the technical field of weeding and comprises: the high-voltage power supply, the energy storage capacitor, the high-voltage switch, the handheld discharge electrode anode and the discharge electrode cathode; the handheld electrode comprises a handheld handle and a discharge electrode which are connected with each other; the high-voltage power supply stores weeding energy in an energy storage capacitor; the high-voltage switch and the positive electrode of the discharge electrode are sequentially connected with the positive electrode of the high-voltage power supply, and the negative electrode of the discharge electrode is connected with the negative electrode of the high-voltage power supply; when the negative electrode of the discharge electrode is inserted into soil and the positive electrode of the discharge electrode is aligned with the target weeds, the high-voltage switch is switched on to break down an air gap between the positive electrode of the discharge electrode and the target weeds, and a discharge loop is formed between the positive electrode of the discharge electrode and the soil to kill the target weeds. Weeds to be removed are selected by operating a handheld discharge electrode, so that green and environment-friendly selective weeding is realized; the electric discharge weeding does not need to contact weeds, only needs to be aligned to the space around the weeds, and is convenient to operate.
Description
Technical Field
The invention belongs to the technical field of weeding, and particularly relates to a weeding device based on high-voltage discharge.
Background
Weeds in agricultural fields are one of the important factors affecting agricultural production. The manual mechanical weeding method is simple, but has low efficiency and can cause water loss and soil erosion. Herbicides are the most rapid and efficient way of weed control, and are divided into chemical herbicides and biological herbicides. The weeding effect of the chemical herbicide is influenced by more environmental factors, and the long-term use of a single chemical herbicide can cause the resistance of weeds to the chemical herbicide, the weeding efficiency is gradually reduced, and more importantly, the excessive use of the chemical herbicide can cause very serious influence on the ecological environment. The biological herbicide has long onset time, is difficult to see instantly, has large influence on the action effect by environmental factors, and is high in research and development and production cost and difficult to widely popularize.
In view of the disadvantages of mechanical, chemical and biological weeding, new weeding methods are gradually emerging. In the prior art, the current is introduced into farmland soil to kill weeds, grass seeds, insects, insect eggs and the like in the soil, and the weeding process is green and environment-friendly. However, since the current is applied to farmland soil, all plants in the soil can be killed, selective weeding cannot be realized, and the weeding composition is only suitable for weeding on wastelands and is not suitable for weeding in farmlands.
Disclosure of Invention
Aiming at the defects and the improvement requirements of the prior art, the invention provides a weeding device based on high-voltage discharge, and aims to reduce the difficulty of weeding operation and improve the weeding efficiency while realizing green and environment-friendly selective weeding.
To achieve the above object, according to one aspect of the present invention, there is provided a high voltage discharge-based weeding apparatus, comprising: the high-voltage switch is connected with the discharge electrode anode and the discharge electrode cathode; the positive electrode and the negative electrode of the discharge electrode are both handheld electrodes, and each handheld electrode comprises a handheld handle and a discharge electrode connected with the handheld handle; the positive electrode and the negative electrode of the high-voltage power supply are respectively connected with the positive electrode and the negative electrode of the energy storage capacitor so as to store weeding energy in the energy storage capacitor; the high-voltage switch and the positive electrode of the discharge electrode are sequentially connected with the positive electrode of the high-voltage power supply, and the negative electrode of the discharge electrode is connected with the negative electrode of the high-voltage power supply; when the negative electrode of the discharge electrode is inserted into soil and the positive electrode of the discharge electrode is aligned with target weeds, the high-voltage switch is conducted to break down an air gap between the positive electrode of the discharge electrode and the target weeds, and a discharge loop is formed between the positive electrode of the discharge electrode and the soil to kill the target weeds.
Further, the discharge electrode has a plurality of discharge tips formed at the end of the positive electrode for respectively aligning a plurality of target weeds to simultaneously kill the plurality of target weeds.
Furthermore, the device also comprises a carrier, wherein the carrier is used for placing the high-voltage power supply, the energy storage capacitor, the high-voltage switch, the positive electrode of the discharge electrode and the negative electrode of the discharge electrode; the carrier comprises a polar wheel in contact with soil, and the polar wheel is connected with the negative electrode of the discharge electrode.
Furthermore, the high-voltage power supply is a high-voltage direct-current power supply, the discharging form of the weeding device is high-voltage direct-current discharging or high-voltage pulse discharging, the high-voltage direct-current power supply comprises a power supply unit, a step-up transformer and a rectifying circuit which are sequentially connected, and the output end of the rectifying circuit is the positive pole and the negative pole of the high-voltage direct-current power supply.
Further, when the discharge form of the weeding device is high-voltage pulse discharge, the high-voltage switch is a gas switch or a solid switch.
Furthermore, the power supply unit supplies power by adopting a battery, an alternating current generator or a 220V power grid, when the power supply unit supplies power by adopting the battery, the high-voltage power supply further comprises an inverter, the input side of the inverter is connected with the power supply unit, and the output side of the inverter is connected with the step-up transformer.
Furthermore, the high-voltage power supply is a high-voltage high-frequency power supply, the discharge form of the weeding device is high-voltage high-frequency discharge, the high-voltage high-frequency power supply comprises a power supply unit, an inverter and a step-up transformer which are sequentially connected, and the output end of the step-up transformer is the positive pole and the negative pole of the high-voltage direct-current power supply.
Furthermore, the power supply unit supplies power by adopting a battery, an alternating current generator or a 220V power grid, when the power supply unit supplies power by adopting the alternating current generator or the 220V power grid, the high-voltage power supply further comprises a rectifying circuit, the input side of the rectifying circuit is connected with the power supply unit, and the output side of the rectifying circuit is connected with the inverter.
Furthermore, the high-voltage power supply further comprises a protection resistor and/or a protection inductor, the energy storage capacitor is connected to the high-voltage power supply through the protection resistor and/or the protection inductor, and the protection resistor and/or the protection inductor are used for limiting the charging current of the energy storage capacitor.
Generally, by the above technical solution conceived by the present invention, the following beneficial effects can be obtained:
(1) the high-voltage discharge is utilized for weeding, and the discharge electrode in the device is designed to be a handheld electrode, so that an operator can hold the positive electrode of the discharge electrode to align weeds to discharge and kill the weeds, and the green and environment-friendly selective weeding is realized, and the device is particularly suitable for weeding in farmlands where plants grow; in the weeding principle, the air gap between the weeds and the positive electrode of the discharge electrode is broken down by using the voltage between the two electrodes so as to form a conductive discharge path among soil, the weeds and the air, and the weeds are killed by using discharge current, so that the positive electrode of the discharge electrode is only aligned with the weeds to discharge, the weeds are not required to be accurately contacted, the operation difficulty is reduced, the operation is convenient, and the weeding efficiency is improved; the weeding composition can effectively kill any kind of weeds, realizes broad-spectrum weeding, rapidly withers and disappears after high-voltage discharge, has obvious effect, avoids the generation of drug resistance from the source, is slightly influenced by environmental factors, and can effectively kill weeds in any growth stage;
(2) a plurality of discharge tips are formed at the tail end of the positive electrode of the discharge electrode to respectively aim at and kill a plurality of target weeds, so that the weeding efficiency is further improved;
(3) the weeding device is arranged on a carrier, such as a motor vehicle or a small non-motor-driven trailer, the weeding device is placed on the carrier, an operator drives or drags the carrier, and controls the anode of the discharge electrode to aim at weeds for weeding, so that the working difficulty of the operator is reduced, and the weeding efficiency is further improved; in addition, reasonable carriers can be selected according to different application scenes, so that weeding requirements under various application scenes are met;
(4) and a protection resistor and/or a protection inductor are/is arranged between the energy storage capacitor and the high-voltage power supply to limit the charging current of the energy storage capacitor and realize the effect of protecting the high-voltage power supply.
Drawings
Fig. 1 is a schematic circuit diagram of a high-voltage discharge-based weeding apparatus according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a high-voltage discharge-based weeding apparatus according to a first embodiment of the present invention;
fig. 3 is a schematic structural view of a high-voltage discharge-based weeding apparatus according to a second embodiment of the present invention;
fig. 4 is a schematic structural view of a high-voltage discharge-based weeding apparatus according to a third embodiment of the present invention;
fig. 5 is a schematic structural view of a high-voltage discharge-based weeding apparatus according to a fourth embodiment of the present invention;
FIG. 6 is a schematic circuit diagram of a high voltage DC power supply according to an embodiment of the present invention;
fig. 7 is a schematic circuit diagram of a high-voltage high-frequency power supply according to an embodiment of the invention.
The same reference numbers will be used throughout the drawings to refer to the same or like elements or structures, wherein:
the weed control system comprises a high-voltage power supply 1, a power supply unit 11, an inverter 12, a step-up transformer 13, a rectifying circuit 14, an energy storage capacitor 2, a high-voltage switch 3, a discharge electrode anode 4, a discharge electrode cathode 5, a discharge current path 6, soil 7 and target weeds 8.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
In the present application, the terms "first," "second," and the like (if any) in the description and the drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
Fig. 1 is a schematic circuit diagram of a high-voltage discharge-based weeding apparatus according to an embodiment of the present invention. Referring to fig. 1, a high voltage discharge-based weeding apparatus according to the present embodiment will be described in detail with reference to fig. 2 to 7.
Referring to fig. 1, the weeding apparatus includes a high voltage power supply 1, an energy storage capacitor 2, a high voltage switch 3, a discharge electrode anode 4, and a discharge electrode cathode 5. The positive electrode 4 and the negative electrode 5 of the discharge electrode are both hand-held electrodes, and the hand-held electrodes comprise hand-held handles and discharge electrodes connected with the hand-held handles. The positive electrode and the negative electrode of the high-voltage power supply 1 are respectively connected with the positive electrode and the negative electrode of the energy storage capacitor 2 so as to store weeding energy in the energy storage capacitor 2. The high-voltage switch 3 and the positive electrode 4 of the discharge electrode are sequentially connected with the positive electrode of the high-voltage power supply 1, and the negative electrode 5 of the discharge electrode is connected with the negative electrode of the high-voltage power supply 1. After the capacitive energy storage is completed, the discharge electrode cathode 5 is inserted into the soil 7, the discharge electrode anode 4 is aligned with the target weed 8, the high-voltage switch 3 is turned on to break down the air gap between the discharge electrode anode 4 and the target weed 8, and a discharge current path 6 is formed between the discharge electrode anode 4 and the soil 7 to kill the target weed 8.
According to an embodiment of the present invention, the weeding apparatus further includes a protection resistor and/or a protection inductor. The energy storage capacitor is connected to the high-voltage power supply through the protection resistor and/or the protection inductor. The protection resistor and/or the protection inductor are used for limiting the charging current of the energy storage capacitor.
The discharge form of the weeding device can adopt one of a plurality of discharge forms such as high-voltage pulse discharge, high-voltage direct current discharge, high-voltage high-frequency discharge and the like. The form of the high voltage power supply 1 may be designed according to the desired discharge form.
In an embodiment of the present invention, the high voltage power supply 1 is a high voltage dc power supply, and the discharging form of the weeding apparatus is high voltage dc discharge or high voltage pulse discharge. The high-voltage direct-current power supply comprises a power supply unit 11, a step-up transformer 13 and a rectifying circuit 14 which are connected in sequence, and the output end of the rectifying circuit 14 is the positive pole and the negative pole of the high-voltage direct-current power supply. The power supply unit 11 can be powered by a battery, an alternator or a 220V power grid. When the power supply unit 11 supplies power using a battery, the high-voltage power supply 1 further includes an inverter 12, an input side of the inverter 12 is connected to the power supply unit 11, and an output side of the inverter 12 is connected to the step-up transformer 13.
Referring to fig. 6, a basic principle circuit of a high voltage dc power supply including a voltage regulator T is shown1Step-up transformer T and rectifier bridge D1-D4The device comprises a protective resistor R, an energy storage capacitor C, a high-voltage switch S and a discharge electrode L. Voltage regulator T1For regulating the circuit input voltage and thus the final discharge voltage, corresponds to the power supply unit 11 and the inverter 12. The step-up transformer T is used for increasing the input voltage to meet the discharge voltage requirement; rectifier bridge D1-D4The energy storage capacitor is used for charging the energy storage capacitor by rectifying the boosted alternating-current voltage into direct-current voltage; the protection resistor R is used for limiting the capacitor charging current and protecting the step-up transformer T; the high-voltage switch S is used for controlling the energy release of the energy storage capacitor C; the discharge electrode L is used for forming high-voltage pulse discharge or high-voltage direct current discharge on target weeds. When the discharge form is high-voltage direct current discharge, the high-voltage switch S is continuously conducted, and direct current high voltage is formed between the discharge electrode and the target weeds, so that direct current discharge is formed on the target weeds. When the discharge form is high-voltage pulse discharge, the high-voltage switch S is turned on after the energy storage capacitor C is charged to the required voltage, and is turned off after the end of single pulse discharge, so that pulse discharge is formed between the discharge electrode and the target weeds.
When the discharge form of the weeding device is high-voltage pulse discharge, the high-voltage switch 3 is a gas switch or a solid switch. Furthermore, the control of the conduction of the solid switch can be added, so that the frequency of pulse discharge is accurately controlled; and the simplest gas switch can be adopted, and the conduction of the high-voltage switch is not controlled, so that the cost is reduced.
In another embodiment of the present invention, the high voltage power supply 1 is a high voltage high frequency power supply, and the discharge form of the weeding apparatus is high voltage high frequency discharge. The high-voltage high-frequency power supply comprises a power supply unit 11, an inverter 12 and a step-up transformer 13 which are connected in sequence, and the output end of the step-up transformer 13 is the positive pole and the negative pole of the high-voltage direct-current power supply. The power supply unit 11 can be powered by a battery, an alternator or a 220V power grid. When the power supply unit 11 adopts an alternator or a 220V power grid for power supply, the high-voltage power supply 1 further comprises a rectifying circuit 14, wherein the input side of the rectifying circuit 14 is connected with the power supply unit 11, and the output side of the rectifying circuit 14 is connected with the inverter 12.
Referring to fig. 7, a basic principle circuit of a high voltage high frequency power supply including an inverter full bridge T is shown2～T5The high-voltage power supply comprises a step-up transformer T, a protection resistor R, an energy storage capacitor C, a high-voltage switch S and a discharge electrode L. Inverter full bridge T2～T5The inverter is used for converting an input dc voltage into a high-frequency ac voltage, and corresponds to the power supply unit 11 and the inverter 12. The step-up transformer T is used for increasing the input voltage to meet the discharge voltage requirement; the protection resistor R is used for limiting the capacitor charging current and protecting the step-up transformer T; the high-voltage switch S is used for controlling the energy release of the energy storage capacitor C; the discharge electrode L is used to form a high-voltage high-frequency discharge to the target weeds. When high-voltage high-frequency discharge is adopted, the high-voltage switch S is continuously conducted, and high-frequency voltage on the energy storage capacitor C is directly applied between the electrode and the target weeds through the discharge electrode L, so that high-voltage high-frequency discharge is carried out on the target weeds.
In the circuits shown in fig. 6 and 7, the transformation ratio n of the step-up transformer T should at least satisfy
Wherein,
maximum charging voltage, U, that can be charged by the energy storage capacitor 2inIs the input voltage. Rectifier bridge D1-D4Pressure resistance value U ofDShould be larger than the maximum charging voltage required by the energy storage capacitor 2 and leave a certain margin. According to input voltage UinFlows through the rectifier bridge D at the maximum and the capacitor voltage is 01-D4Maximum current of
Provided with a rectifier bridge D1-D4With a certain margin, R is the protection currentThe resistance value of the resistor. The resistance value of the protection resistor R is selected according to the capacity of the step-up transformer T, so that the requirement can be still met when the capacitor voltage is 0. The energy storage capacitor C is a high-voltage capacitor and is CU according to the discharge energy Q2And/2, designing the size of the energy storage capacitor C and bearing the required maximum discharge voltage.
The high-voltage switch 3 is used for controlling whether the weeding device discharges and the frequency of the discharge. The positive electrode 4 of the discharge electrode is a metal conductor, the end of which is formed into a tip, and the number of the tips is one or more. When the tail end of the positive electrode of the discharge electrode is provided with a plurality of discharge tips, the discharge tips can be respectively aligned to a plurality of target weeds so as to kill the target weeds simultaneously, and the weeding efficiency is improved. The discharge electrode cathode 5 is a metal conductor and can be in good contact with the ground soil. The target weeds 8 are weeds to be killed, and the shape, size and species thereof are not limited. Soil 7 is the weeding scene that the device worked, also is the must channel of discharge current. The discharge current path 6 is a current path after discharge is formed for the target weeds 8, and the purpose of killing the weeds can be achieved through the discharge current.
Further, the weeding device should have current-limiting protection function, stop discharging when detecting that discharge current is too big to guarantee operating personnel's personal safety. The weeding device should also have an overcurrent protection function, and discharge is stopped when excessive discharge current is detected, so as to protect the weeding device from being damaged.
The weeding apparatus can be designed as a small backpack apparatus, as shown in fig. 2. Referring to fig. 2, the cathode 5 of the discharge electrode is directly led out of the device to achieve the purposes of grounding and providing a discharge circuit, and an operator holds the anode 4 of the discharge electrode to be aligned with the target weed 8 to weed.
According to an embodiment of the present invention, the weeding apparatus further comprises a carrier for placing the high voltage power supply, the energy storage capacitor, the high voltage switch, the discharge electrode anode and the discharge electrode cathode. The carrier comprises a polar wheel in contact with soil, and the negative electrode of the discharge electrode is connected with the polar wheel. Based on this, the weeding device is designed as a small push-pull type device or a vehicle-mounted type device.
The small push-pull type device is shown in fig. 3, a pole wheel is used as a negative pole 5 of a discharge electrode, and forms a good grounding with soil 7 to provide a discharge circuit, and an operator holds a positive pole 4 of the discharge electrode to aim at target weeds 8 to weed. The vehicle-mounted device is shown in fig. 4 and 5, wherein the vehicle in fig. 4 is, for example, a small agricultural vehicle, the vehicle in fig. 5 is, for example, a large agricultural machine, the wheel serves as the negative electrode 5 of the discharge electrode, and forms a good ground with the soil 7 to provide a discharge circuit; the positive electrode 4 of the discharge electrode is detachably fixed on one side of the carrier, for example, fixed in front of the carrier, so that an operator can conveniently control the start and stop of the carrier, and the positive electrode 4 of the discharge electrode is aligned with the target weeds 8 to weed.
In the embodiment of the invention, different carriers can be adopted according to different application scenes. When the power supply is applied to a large-scale high-voltage discharge weeding scene, an agricultural vehicle can be used as a carrier, an alternating-current generator can be used as the power supply unit 11, and the inverter 12, the booster transformer 13 and the rectifying circuit 14 with larger capacity are matched to improve discharge energy, so that the efficiency requirement of large-scale high-voltage discharge weeding is met. When the device is applied to a small-scale high-voltage discharge weeding scene, the inverter 12 can adopt a high-frequency inversion technology, so that the smaller step-up transformer 13 is matched to reduce the size and the weight of the weeding device, and the whole weeding device is miniaturized.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (9)
1. A weeding apparatus based on high-voltage discharge, comprising: the high-voltage switch is connected with the discharge electrode anode and the discharge electrode cathode;
the positive electrode and the negative electrode of the discharge electrode are both handheld electrodes, and each handheld electrode comprises a handheld handle and a discharge electrode connected with the handheld handle;
the positive electrode and the negative electrode of the high-voltage power supply are respectively connected with the positive electrode and the negative electrode of the energy storage capacitor so as to store weeding energy in the energy storage capacitor; the high-voltage switch and the positive electrode of the discharge electrode are sequentially connected with the positive electrode of the high-voltage power supply, and the negative electrode of the discharge electrode is connected with the negative electrode of the high-voltage power supply;
when the negative electrode of the discharge electrode is inserted into soil and the positive electrode of the discharge electrode is aligned with target weeds, the high-voltage switch is conducted to break down an air gap between the positive electrode of the discharge electrode and the target weeds, and a discharge loop is formed between the positive electrode of the discharge electrode and the soil to kill the target weeds.
2. The high voltage discharge-based weeding apparatus according to claim 1, wherein the distal end of the positive electrode of the discharge electrode is formed with a plurality of discharge tips for respectively targeting a plurality of target weeds to simultaneously kill the plurality of target weeds.
3. The high-voltage discharge-based weeding apparatus according to claim 1 or 2, further comprising a carrier for placing said high-voltage power supply, energy storage capacitor, high-voltage switch, discharge electrode positive electrode, and discharge electrode negative electrode;
the positive electrode of the discharge electrode is detachably fixed on one side of the carrier; the carrier comprises a polar wheel in contact with soil, and the negative electrode of the discharge electrode is connected with the polar wheel.
4. The high voltage discharge-based weeding apparatus according to claim 1, wherein said high voltage power supply is a high voltage dc power supply, and the discharging form of said weeding apparatus is a high voltage dc discharge or a high voltage pulse discharge, and said high voltage dc power supply includes a power supply unit, a step-up transformer, and a rectifying circuit connected in this order, and the output terminal of said rectifying circuit is the positive and negative terminals of said high voltage dc power supply.
5. The high voltage discharge-based weeding apparatus according to claim 4, wherein said high voltage switch is a gas switch or a solid switch when the discharge form of said weeding apparatus is a high voltage pulse discharge.
6. The high-voltage discharge-based weeding apparatus according to claim 4 or 5, wherein said power supply unit is powered by a battery, an alternator, or a 220V grid, and when said power supply unit is powered by a battery, said high-voltage power supply further comprises an inverter, an input side of said inverter being connected to said power supply unit, and an output side of said inverter being connected to said step-up transformer.
7. The high voltage discharge-based weeding apparatus according to claim 1, wherein said high voltage power supply is a high voltage high frequency power supply, and said weeding apparatus discharges in the form of high voltage high frequency discharge, and said high voltage high frequency power supply includes a power supply unit, an inverter, and a step-up transformer connected in this order, and the output terminal of said step-up transformer is the positive and negative terminals of said high voltage direct current power supply.
8. The high-voltage discharge-based weeding apparatus according to claim 7, wherein said power supply unit is powered by a battery, an alternator, or a 220V grid, and when said power supply unit is powered by an alternator or a 220V grid, said high-voltage power supply further comprises a rectifying circuit, an input side of said rectifying circuit is connected to said power supply unit, and an output side of said rectifying circuit is connected to said inverter.
9. The high-voltage discharge-based weeding apparatus according to claim 1, further comprising a protection resistor and/or a protection inductor through which said energy storage capacitor is connected to said high-voltage power supply, said protection resistor and/or protection inductor limiting a charging current of said energy storage capacitor.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115281173A (en) * | 2022-09-06 | 2022-11-04 | 榆林市林业科学研究所 | Electric power high voltage weeding rifle |
| WO2024055082A1 (en) * | 2022-09-13 | 2024-03-21 | Zasso Group Ag | High voltage capacitive stationary energy storage system |
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| WO2024055082A1 (en) * | 2022-09-13 | 2024-03-21 | Zasso Group Ag | High voltage capacitive stationary energy storage system |
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