CN219575244U - Hand-held plasma generator - Google Patents
Hand-held plasma generator Download PDFInfo
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- CN219575244U CN219575244U CN202320980477.5U CN202320980477U CN219575244U CN 219575244 U CN219575244 U CN 219575244U CN 202320980477 U CN202320980477 U CN 202320980477U CN 219575244 U CN219575244 U CN 219575244U
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Abstract
A hand-held plasma generator is characterized in that a power supply current is regulated to a driving current with specific electrical property, voltage and working time pulse through a voltage and time pulse regulating component, and then a normal pressure low temperature plasma is generated through an electrode component.
Description
Technical Field
The present utility model relates to a handheld plasma generator, and more particularly, to a handheld plasma generator for generating a normal pressure low temperature plasma using a battery, a circuit design and a dielectric material.
Background
The plasma is in a fourth state, the substances constituting the plasma have the variety of particles, high energy is provided for electrons in molecules under the condition of high electric field intensity, the excited electrons are separated from original atoms or the binding force in the molecules by the obtained energy to form free electrons, the original atoms or the molecules are in a charged ion state by losing electrons, and the free electrons, ions or molecules are continuously collided with each other to perform complex physical and chemical reactions, so that the plasma is also provided with particles with different properties such as neutral particles, free electrons, free radicals and the like besides the ions.
The artificial plasma generation method can be classified by various parameters at the time of plasma generation. The plasma is divided into High-temperature plasma (HTP) and Low-temperature (Low-temperature plasma, LTP) by plasma temperature; the plasma is divided into high pressure, normal pressure, low pressure and vacuum plasma by the gas pressure; the Plasma can be divided into Jet type Plasma (Plasma Jet), dielectric discharge (Dielectric barrier discharge, DBD), corona discharge (Corona discharge), plasma torch (Plasma torch) by the structure of the apparatus for generating the Plasma; the surface treatment of the object by plasma can be classified into Direct (Direct) and Indirect (Indirect) plasma; the plasma is classified into Direct Current (DC), low frequency (KHz), intermediate frequency (MHz), radio frequency (13.6 MHz), microwave (2.45 GHz) plasma by the kind of power supply.
The surface of the object to be treated can change the molecular structure or the characteristics of the surface through physical and chemical reaction, and the surface can be applied to various fields of cleaning, surface modification, sputtering, sterilization, disinfection, cancer treatment, wound healing, skin regeneration, food and fruit preservation and the like in industrial and medical applications.
The existing medical application plasma generating equipment is required to provide power through a power line in the using process, and the power consumption is larger, so that a larger space is required to be provided for arranging a power supply, in addition, the plasma generating process of part of the medical application plasma generating equipment is required to provide special noble gas as working gas, the equipment is huge, and the requirements of the handheld portable equipment are difficult to meet.
Disclosure of Invention
The main objective of the present utility model is to disclose a handheld plasma generator capable of generating a high voltage induced electric field to excite atmospheric gas molecules to generate a normal pressure low temperature plasma.
To achieve the above object, the present utility model provides a handheld plasma generator, comprising: a shell, a motherboard, a power supply component, a mode change-over switch component, a voltage and time pulse adjusting component, an electrode component and a conductive decoration strip. The shell is provided with a containing space and an action opening communicated with the containing space, and the mainboard is arranged in the containing space. The power supply assembly is arranged on the motherboard and provides a power supply current. The mode switching switch assembly is provided with a mode switching switch and a switch circuit, the mode switching switch is connected with the switch circuit, the switch circuit is electrically connected with the motherboard, and a deflector rod on the switch circuit can be driven and driven by pulling the mode switching switch, and the switch circuit can be used for selecting to switch an operation mode or selecting whether to supply the power supply current. The voltage and clock adjusting component is arranged on the motherboard and adjusts the power supply current into a driving current with specific electrical property, voltage and working clock according to the operation mode.
The electrode assembly is provided with a dielectric material plate, a metal electrode layer and a power supply contact, wherein the dielectric material plate is provided with a first side plate, a second side plate and a sandwich plate, the sandwich plate is positioned between the first side plate and the second side plate, the first side plate is provided with an electrode channel, the electrode channel penetrates through the first side plate, the dielectric material plate is arranged in the accommodating space, the second side plate is aligned to the acting opening, the metal electrode layer is arranged in the sandwich plate, the power supply contact is arranged in the electrode channel and electrically conducts the metal electrode layer and the voltage and time pulse adjusting assembly, so that the driving current is transmitted to the metal electrode layer, and the driving current can generate a high-voltage induction electric field on the second side plate to excite an atmospheric gas molecule close to the second side plate, so that normal-pressure low-temperature plasma is generated on one side of the second side plate. The conductive decoration strip is provided with at least one grounding contact and is arranged on a handheld surface on the shell, and the grounding contact is electrically connected with the motherboard.
In an embodiment of the present utility model, the voltage and clock adjustment component includes an electrical adjustment circuit for adjusting electrical property, voltage, current and operation clock, and a transformer for performing frequency oscillation and boosting, and the power supply current is adjusted to the driving current by the electrical adjustment circuit for adjusting electrical property, voltage and operation clock, and then frequency oscillation and boosting are performed by the transformer.
In one embodiment of the present utility model, the output of the electrical adjusting circuit has an operating clock range ton=5-200 ms, toff=5-100 ms, and an operating clock ratio Ton: toff=1.0:0.3-5.0, and the power supply voltage range is 2.0-13.5v.
In one embodiment of the present utility model, the driving current is high voltage alternating current, the oscillation frequency is 10-200 khz, and the output voltage is 1-10 kv.
In an embodiment of the utility model, the charging assembly further includes a charging connector and a charging protection circuit, the power supply assembly is a rechargeable battery, the charging connector is electrically connected to a commercial power, and the charging protection circuit is electrically connected to the charging connector and the rechargeable battery respectively.
In an embodiment of the utility model, the display device further includes an indication light assembly, the indication light assembly includes a plurality of led dies and a plurality of light guide posts corresponding to the led dies, the led dies are disposed on the motherboard, the light guide posts are fixed on the housing, and the housing has a plurality of light guide openings exposing the light guide posts.
In an embodiment of the present utility model, the conductive decorative strip is any one of a metal strip, a graphite strip, a plastic strip with a metal coating or a graphite coating, which has high conductive property.
In an embodiment of the present utility model, the dielectric material plate is a ceramic plate, the metal electrode layer is a silver electrode layer, and the dielectric material plate and the metal electrode layer are disposed in the sandwich plate by a low-temperature co-firing technology.
In an embodiment of the utility model, the thickness of the first side plate is 0.1-10 mm, the thickness of the second side plate is 0.02-10mm, and the thickness of the metal electrode layer is 0.001-10mm.
In an embodiment of the utility model, a thickness of the second side plate is smaller than a thickness of the first side plate.
As described above, the hand-held plasma generator disclosed by the utility model can generate the normal pressure low temperature plasma at the action opening, and the particles in the plasma are active molecules, ions, free radicals and excited free electrons with oxidation capability, and have the functions of sterilization, surface modification, deodorization, cleaning and the like, so that the hand-held plasma generator is suitable for being applied to the medical field, and the treatment of intact skin and shallow wounds is the best object to be acted on. However, the application range is not limited to human skin treatment, but also includes treatment of skin or hair of livestock such as dogs, cats, cattle, sheep, chickens, ducks, geese, etc.
Drawings
FIG. 1 is a front view of a hand-held plasma generator according to the present utility model;
FIG. 2 is an exploded view of a hand-held plasma generator according to the present utility model;
FIG. 3 is a bottom view of a handheld plasma generator according to the present utility model;
FIG. 4 is an exploded view of an electrode assembly according to the present utility model;
FIG. 5 is a structural assembly view of an electrode assembly according to the present utility model;
FIG. 6 is a schematic diagram of the generation of a normal pressure low temperature plasma according to the present utility model.
Detailed Description
The detailed description and technical content of the present utility model will now be described with reference to the accompanying drawings:
referring to fig. 1, 2 and 3, the present utility model provides a handheld plasma generator, comprising: a housing 10, a motherboard 20, a power supply assembly 30, a mode switch assembly 40, a voltage and clock adjustment assembly 50, an electrode assembly 60 and a conductive molding 70.
In one embodiment, the housing 10 has an upper shell 11, a lower shell 12 and a receiving space 13, the receiving space 13 is covered by the upper shell 11 and the lower shell 12, and the lower shell 12 has an action opening 121 communicating with the receiving space 13.
The motherboard 20 is disposed in the accommodating space 13 and is clamped and fixed by the upper housing 11 and the lower housing 12.
The power supply assembly 30 is disposed on the motherboard 20 and provides a power supply current. In one embodiment, the present utility model further comprises a charging assembly 80, the charging assembly 80 has a charging connector 81 and a charging protection circuit 82, the charging connector 81 can use, for example, a USB-A, USB-B or USB-C interface (including miniUSB, microUSB interface) as the charging interface, preferably, the charging connector 81 interface is a micro USB interface. In addition, the charging protection circuit 82 is not limited to be built on the motherboard 20, and may also exist in a separate form.
The power supply assembly 30 is a rechargeable battery 31, the charging connector 81 is electrically connected to a commercial power (not shown), and the charging protection circuit 82 is electrically connected to the charging connector 81 and the rechargeable battery 31, respectively. Preferably, the charging voltage is in the range of DC 3.5-4.5 volts (V), the battery capacity is 1000-4000 milliampere hours (mAh), and the rated output current is 100-1000mAh. The power supply assembly 30 is not limited to use with lithium batteries, but may also be used with nickel-hydrogen, nickel-cadmium, carbon-zinc, lithium polymers, alkaline batteries, and the like.
The commercial power is reduced to a voltage range of 3.5-13.5V by an external transformer (not shown), a current limit range of 0.8-3.5 ampere (a) is limited, and the commercial power is input to the charging protection circuit 82 through the charging connector 81, and is reduced, stabilized and limited in current, and then a direct current power supply is provided to charge the rechargeable battery 31, and the rechargeable battery is powered off after full charge.
The mode switch assembly 40 has a mode switch 41 and a switch circuit 42, the mode switch 41 is connected to the switch circuit 42, the switch circuit 42 is electrically connected to the motherboard 20, and a lever 421 on the switch circuit 42 can be moved by moving the mode switch 41 to switch an operation mode or to select whether to supply the power supply current.
The voltage and clock adjustment component 50 is disposed on the motherboard 20, and adjusts the power supply current to a driving current with specific electrical properties, voltage and operation clock according to the operation mode. More specifically, the voltage and clock adjusting device 50 includes an electrical adjusting circuit 51 for adjusting electrical property, voltage, current and operation clock, and a transformer 52 for performing frequency oscillation and boosting, wherein the output voltage range of the rechargeable battery 31 is DC 3.5-4.5V, the rated output current is 100-1000mAh, and after passing through the electrical adjusting circuit 51, the operation clock range of the electrical adjusting circuit 51 is ton=5-200 milliseconds (ms), toff=5-100 ms, the operation clock ratio Ton: toff=1.0:0.3-5.0, and the power supply voltage range is 2.0-13.5V. The power supply current is first regulated by the electrical regulator circuit 51 to be electrical, voltage and operating clock, and then is frequency oscillated and boosted by the transformer 52 to be regulated to be the driving current of the clock, frequency and high voltage. In one embodiment, the drive current is high voltage alternating current, the oscillation frequency is 10-200 kilohertz (kHz), and the output voltage is 1-10 kilovolts (kV).
Referring to fig. 4 and 5, the electrode assembly 60 has a dielectric material plate 61, a metal electrode layer 62 and a power contact 63, the dielectric material plate 61 has a first side plate 611, a second side plate 612 and a sandwich plate 613, the sandwich plate 613 is disposed between the first side plate 611 and the second side plate 612, the first side plate 611 is provided with an electrode channel 614, the electrode channel 614 penetrates the first side plate 611, the dielectric material plate 61 is disposed in the accommodating space 13, the second side plate 612 is aligned with the action opening 121, and the metal electrode layer 62 is disposed in the sandwich plate 613.
In one embodiment, the dielectric material 61 is ceramic, glass, plastic, etc., preferably ceramic, and the metal electrode layer 62 is silver, and the dielectric material 61 and the metal electrode layer 62 are disposed in the sandwich panel 613 by low temperature co-firing. When a sufficiently high ac electric field is provided to the Dielectric material, positive charges in the Dielectric material migrate very closely toward the electric field, negative charges migrate very closely toward the opposite direction, and the Dielectric material at the far end of the metal-Dielectric material contact surface will produce a shield discharge effect, and nearby atmospheric molecules, single special gas, mixed gas molecules, part or a proportion of the molecules will reach the breakdown voltage required for excitation, while transition from the ground state to the excited state is accompanied by the generation of high-voltage Micro-current Micro-discharge (Micro discharge) filaments and plasma.
In one embodiment, the metal electrode layer 62 is sealed by the dielectric material plate 61 to prevent the metal electrode layer 62 from contacting the atmosphere or other gases. If the metal electrode layer 62 is not in close contact with the dielectric material plate 61, but is exposed to the atmosphere or other gas during the discharge process, the exposed surface of the metal electrode layer 62 will generate micro discharge phenomenon and plasma, and the plasma has ozone, strong oxidation ions, molecules or other particles, which will cause serious oxidation reaction to the metal electrode layer 62 to cause corrosion and further will cause current breakdown of the metal electrode layer 62.
In one embodiment, the thickness of the first side plate 611 is 0.1-10 millimeters (mm), the thickness of the second side plate 612 is 0.02-10mm, and the thickness of the metal electrode layer 62 is 0.001-10mm. And preferably, the thickness of the second side plate 612 is smaller than that of the first side plate 611.
The power contact 63 is disposed in the electrode channel 614 and electrically connected to the metal electrode layer 62, and the power contact 63 can electrically connect to the voltage and clock adjustment device 50 through a high voltage power line 64 to transmit the driving current to the metal electrode layer 62. And the high voltage power line 64 is electrically connected to the power contact 63 through a solder 641.
Referring to fig. 6, the driving current generates a high voltage induced electric field on the second side plate 612 to excite an atmospheric gas molecule adjacent to the second side plate 612, so as to generate a normal pressure low temperature plasma P on one side of the second side plate 612, wherein the normal pressure low temperature plasma P has low temperature, normal pressure, atmospheric pressure, dielectric discharge, indirect type, and low frequency characteristics. When the second side plate 612 is adjacent to an object S to be acted, such as human skin, if the object S to be acted is not electrically grounded to the ground, the accumulation of surface charges on the object S to be acted generates a local electric field, which greatly affects the plasma generation efficiency, so, as shown in fig. 2, the conductive decoration strip 70 has at least one grounding contact 71, and the conductive decoration strip 70 is disposed on a handheld surface 101 on the housing 10, and the grounding contact 71 is electrically connected to a grounding contact 201 of the motherboard 20. In practice, the conductive decorative strip 70 is made of any one of metal, graphite, metal-coated or graphite-coated plastic with high conductive property, and the conductive decorative strip 70 can be disposed between the upper housing 11 and the lower housing 12 and clamped and fixed by the upper housing 11 and the lower housing 12. When the object S is a human skin, the conductive decorative strip 70 is contacted by holding the housing 10, so that the surface charges accumulated on the object S can be guided to the ground contact 201 of the motherboard 20, thereby avoiding affecting the plasma generation efficiency.
In an embodiment, as shown in fig. 2, the present utility model further includes an indicator light assembly 90, where the indicator light assembly 90 includes a plurality of LED dies 91 and a plurality of light guide columns 92, the plurality of light guide columns 92 are disposed corresponding to the plurality of LED dies 91, the plurality of LED dies 91 are disposed on the motherboard 20, the plurality of light guide columns 92 are fixed on the upper housing 11 (the housing 10), and the upper housing 11 (the housing 10) has a plurality of light guide openings 111, and the plurality of light guide openings 111 expose the plurality of light guide columns 92, so that the indicator light can be used as an indicator light for a user to know a current operation mode.
In summary, the features of the present utility model at least include:
1. the hand-held plasma generator can generate normal pressure low temperature plasma without connecting with commercial power, meets the requirement of portable use, and can treat complete skin and superficial wounds.
2. The metal electrode layer is covered by the dielectric material plate, so that plasma is prevented from being generated on the metal electrode layer, and serious oxidation reaction and corrosion of the metal electrode layer can not be generated.
3. The thickness of the second side plate is smaller than that of the first side plate, so that the normal pressure low temperature plasma can be effectively ensured to be generated on one side of the second side plate, and the first side plate is prevented from generating unexpected plasma.
Claims (10)
1. A hand-held plasma generator, comprising:
a shell, which is provided with a containing space and an action opening communicated with the containing space;
a motherboard disposed in the accommodating space;
the power supply assembly is arranged on the motherboard and provides a power supply current;
the mode switching switch component is provided with a mode switching switch and a switch circuit, the mode switching switch is connected with the switch circuit, the switch circuit is electrically connected with the motherboard, and a deflector rod on the switch circuit can be driven and toggled by toggling the mode switching switch to select to switch an operation mode or to select whether to supply the power supply current;
the voltage and clock pulse adjusting component is arranged on the mainboard and adjusts the power supply current into a driving current with specific electrical property, voltage and working clock pulse according to the operation mode;
the electrode assembly is provided with a dielectric material plate, a metal electrode layer and a power supply contact, the dielectric material plate is provided with a first side plate, a second side plate and a sandwich plate positioned between the first side plate and the second side plate, the first side plate is provided with an electrode channel, the electrode channel penetrates through the first side plate, the dielectric material plate is arranged in the accommodating space, the second side plate is aligned to the acting opening, the metal electrode layer is arranged in the sandwich plate, the power supply contact is arranged in the electrode channel and electrically conducts the metal electrode layer and the voltage and time pulse adjusting assembly so as to transmit the driving current to the metal electrode layer, and the driving current can generate a high-voltage induction electric field on the second side plate so as to excite atmospheric gas molecules close to the second side plate, so that normal-pressure low-temperature plasma is generated on one side of the second side plate; and
the conductive decoration strip is provided with at least one grounding contact and is arranged on a handheld surface on the shell, and the grounding contact is electrically connected with the motherboard.
2. The device of claim 1, wherein the voltage and clock adjustment assembly comprises an electrical adjustment circuit for adjusting electrical, voltage, current, and operating clock, and a transformer for performing frequency oscillation and boosting, wherein the power supply current is adjusted to the driving current by the electrical adjustment circuit, and then frequency oscillation and boosting are performed by the transformer.
3. The portable plasma generator of claim 2, wherein the output of the electrical regulator circuit has an operating clock range ton=5-200 ms, toff=5-100 ms, and an operating clock ratio Ton: toff=1.0:0.3-5.0, and a supply voltage range of 2.0-13.5 volts.
4. The hand-held plasma generator of claim 1, wherein the driving current is a high voltage alternating current, the oscillating frequency is 10-200 khz, and the output voltage is 1-10 kv.
5. The portable plasma generator of claim 1, further comprising a charging assembly having a charging connector and a charging protection circuit, wherein the power supply assembly is a rechargeable battery, the charging connector is electrically connected to a mains supply, and the charging protection circuit is electrically connected to the charging connector and the rechargeable battery, respectively.
6. The portable plasma generator of claim 1, further comprising an indicator light assembly, wherein the indicator light assembly comprises a plurality of led dies and a plurality of light guide posts corresponding to the led dies, the led dies are disposed on the motherboard, the light guide posts are fixed on the housing, and the housing has a plurality of light guide openings exposing the light guide posts.
7. The hand-held plasma generator of claim 1 wherein the conductive decorative strip is any one of a metal strip having high conductive properties, a graphite strip, a plastic strip having a metal coating or a graphite coating.
8. The hand-held plasma generator of claim 1 wherein the dielectric material plate is a ceramic plate, the metal electrode layer is a silver electrode layer, and the dielectric material plate and the metal electrode layer are arranged in the sandwich plate by a low temperature co-firing technique.
9. The hand-held plasma generator of claim 1 wherein the first side plate has a thickness of 0.1-10 mm, the second side plate has a thickness of 0.02-10mm, and the metal electrode layer has a thickness of 0.001-10mm.
10. The hand-held plasma generator of claim 1 wherein the thickness of the second side plate is less than the thickness of the first side plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320980477.5U CN219575244U (en) | 2023-04-26 | 2023-04-26 | Hand-held plasma generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320980477.5U CN219575244U (en) | 2023-04-26 | 2023-04-26 | Hand-held plasma generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219575244U true CN219575244U (en) | 2023-08-22 |
Family
ID=87652159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320980477.5U Active CN219575244U (en) | 2023-04-26 | 2023-04-26 | Hand-held plasma generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219575244U (en) |
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2023
- 2023-04-26 CN CN202320980477.5U patent/CN219575244U/en active Active
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