Portable plasma sterilization and disinfection device

Abstract

The present invention discloses a portable plasma sterilization and disinfection device, comprising a fan channel, one end of which is an air outlet interface, and the other end of which is an air inlet. A fan and a plasma exciter are respectively installed inside the fan channel, and the plasma exciter is located between the air outlet interface and the fan. A handle is also installed on the outer wall of the fan channel, and a battery device is installed inside the handle, and the battery device is electrically connected to the fan and the plasma exciter respectively. The device adopts a multi-stage synthetic jet plasma exciter configuration, generates a large amount of plasma, and has the characteristics of rapid response, low power consumption, and high excitation intensity. The device has the characteristics of simple structure, light weight, small size, and convenient portability. The battery device of the device adopts a lithium battery combined with a supercapacitor for energy storage, which has the characteristics of shortening battery charging time and increasing battery service life.

Description

Technical Field

[0001] The invention belongs to the technical field of sterilization and disinfection, and relates to a portable plasma sterilization and disinfection device. Background Art

[0002] With the application and development of plasma technology, its effectiveness in disinfection and sterilization is becoming increasingly widespread. Research has shown that plasma sterilization is effective, cost-effective, harmless to the human body, and can even provide cosmetic benefits. Consequently, plasma sterilization and disinfection technology has gradually become part of our daily lives.

[0003] However, traditional plasma sterilizers are bulky and fixed in position, making them inconvenient to use. They also produce a small amount of plasma and a small range of action. Therefore, it is crucial to design a household plasma sterilizer that is easy to move and carry, produces a large amount of plasma, and has a wide range of action. Summary of the Invention

[0004] The purpose of the present invention is to provide a portable plasma sterilization and disinfection device, which solves the problems in the prior art of large volume, fixed position and small amount of plasma in plasma sterilization and disinfection equipment.

[0005] The technical solution adopted by the present invention is a portable plasma sterilization and disinfection device, which includes a fan channel, one end of the fan channel is an air outlet interface, and the other end of the fan channel is an air inlet. A fan and a plasma exciter are respectively installed inside the fan channel, and the plasma exciter is located between the air outlet interface and the fan. A handle is also installed on the outer wall of the fan channel, and a battery device is installed inside the handle, and the battery device is electrically connected to the fan and the plasma exciter respectively.

[0006] The present invention is also characterized in that:

[0007] The battery device includes a charging module, and the output ends of the charging module are connected to a lithium battery pack and a supercapacitor respectively.

[0008] A gauze is provided in the air outlet interface, and the air outlet interface of the fan channel is connected to the air outlet device.

[0009] A handle base is installed at the bottom of the handle, and a power supply interface is provided inside the handle base. The power supply interface is electrically connected to the fan, plasma exciter and battery device respectively. A step-down module and a first switch are also provided on the line between the power supply interface and the fan. A boost module and a second switch are also provided on the line between the power supply interface and the plasma exciter. The boost module and the step-down module are both provided inside the handle, and the first switch and the second switch are both installed on the outer wall of the fan channel.

[0010] The plasma exciter is a ring structure, and there are several plasma exciters arranged in parallel.

[0011] Each plasma actuator includes an annular insulating dielectric layer, and an upper electrode and a lower electrode are respectively provided on the circular ring surfaces on both sides of the annular insulating dielectric layer. The upper electrode and the lower electrode are respectively connected to the positive and negative poles of the battery device.

[0012] The thickness of the annular insulating dielectric layer is 5mm-10mm, the inner diameter of the annular insulating dielectric layer is 3cm-6cm, the outer diameter of the annular insulating dielectric layer is 4.5cm-7.5cm, and the distances between the upper electrode and the lower electrode and the inner and outer edges of the annular insulating dielectric layer are both greater than 5mm.

[0013] Both the upper electrode and the lower electrode are arc-shaped. There are several upper electrodes and lower electrodes. Each upper electrode and lower electrode is concentric with the annular insulating dielectric layer. The thickness of each upper electrode and lower electrode is 0.01mm-0.2mm. The inner diameter of each upper electrode and lower electrode is 3.6cm-6.5cm, and the outer diameter is 3.9cm-7.2cm.

[0014] The upper electrode and the lower electrode are both annular, and are concentric with the annular insulating dielectric layer. The thickness of the upper electrode and the lower electrode is 0.01mm-0.2mm, the inner diameter of the upper electrode and the lower electrode is 3.6cm-6.5cm, and the outer diameter is 3.9cm-7.2cm.

[0015] The beneficial effects of the present invention are:

[0016] The portable plasma sterilization and disinfection device of the present invention adopts a multi-stage synthetic jet plasma exciter configuration, which generates a large amount of ions and has the characteristics of rapid response, low power consumption and high excitation intensity. The device has the characteristics of simple structure, light weight and small size, which can be conveniently carried. The battery device of the device uses a combination of lithium batteries and supercapacitors for energy storage, which has the characteristics of shortening battery charging time and increasing battery life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of the portable plasma sterilization and disinfection device of the present invention;

[0018] Figure 2 It is a schematic structural diagram of the air outlet device in the portable plasma sterilization and disinfection device of the present invention;

[0019] Figure 3 This is a circuit diagram of the blower and plasma actuator in the portable plasma sterilization device of the present invention;

[0020] Figure 4 It is a schematic structural diagram of the plasma actuator in the portable plasma sterilization and disinfection device of the present invention;

[0021] Figure 5 It is a top view of the plasma exciter in the portable plasma sterilization and disinfection device of the present invention.

[0022] In the figure, 1. Fan channel, 2. Air outlet, 3. Air inlet, 4. Handle, 5. Fan;

[0023] 6. Plasma actuator, 601. Annular insulating dielectric layer, 602. Upper electrode, 603. Lower electrode;

[0024] 7. Screen, 8. Handle base, 9. Power supply port, 10. First switch, 11. Second switch, 12. Air outlet, 13. Boost module, 14. Buck module;

[0025] 15. Battery device, 15-1. Charging module, 15-2. Lithium battery pack, 15-3. Supercapacitor. DETAILED DESCRIPTION

[0026] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] The portable plasma sterilization and disinfection device of the present invention is as follows: Figure 1 As shown, it includes a fan channel 1, one end of the fan channel 1 is an air outlet interface 2, and the other end of the fan channel 1 is an air inlet 3. A fan 5 and a plasma exciter 6 are installed inside the fan channel 1 respectively. The plasma exciter 6 is located between the air outlet interface 2 and the fan 5. The plasma can be sent out of the sterilizer more conveniently through the fan 5. A handle 4 is also installed on the outer wall of the fan channel 1. A battery device 15 is installed inside the handle 4. The battery device 15 is electrically connected to the fan 5 and the plasma exciter 6 respectively.

[0028] The battery device 15 includes a charging module 15-1, the output end of which is connected to a lithium battery pack 15-2 and a supercapacitor 15-3 respectively. The battery device 15 uses the lithium battery pack 15-2 and the supercapacitor 15-3 to store energy, which has the characteristics of shortening the battery charging time and increasing the battery life.

[0029] Among them, the air outlet device 12, such as Figure 2 As shown, a gauze 7 is provided in the air outlet interface 2, which can effectively prevent debris from entering the interior of the device. The air outlet interface 2 of the fan channel 1 is connected to the air outlet device 12. The air outlet device 12 can have a variety of configurations to facilitate application in various environments. Figure 2 In addition to the trapezoidal shape shown in the figure, there are various other configurations, such as funnel-shaped or straight-cylinder-shaped, as long as they can be installed at the air outlet interface.

[0030] The power supply mode of the fan 5 and the plasma exciter 6 is as follows: Figure 3As shown, a handle base 8 is installed at the bottom of the handle 4, and a power supply interface 9 is provided inside the handle base 8. The power supply interface 9 is electrically connected to the fan 5, the plasma exciter 6 and the battery device 15 respectively, wherein the battery device 15 can provide electrical energy when the sterilizer is not connected to the 220V AC power. The battery device 15 adopts a combination of a lithium battery 15-2 and a supercapacitor 15-3 to store energy, which can shorten the charging time of the battery and increase the service life of the battery part. The power supply interface 9 can charge the battery device 15 and provide electrical energy for the disinfection and sterilization of the entire device. A step-down module 14 and a first switch 10 are also provided on the line between the power supply interface 9 and the fan 5, and a boost module 13 and a second switch 11 are also provided on the line between the power supply interface 9 and the plasma exciter 6. The boost module 13 and the step-down module 14 are both arranged inside the handle 4, and the first switch 10 and the second switch 11 are both installed on the outer wall of the fan channel 1. The first switch 10 and the second switch 11 can respectively control the working level of the plasma exciter and the speed of the fan.

[0031] The specific power supply principle of the power supply structure of the fan 5 and the plasma exciter 6 is as follows: when connected to 220V household AC power, it works in three parts: first, the operating voltage of the fan 5 is reached through the step-down module 14, powering the fan 5 so that the fan can work normally; second, the voltage is increased to the operating voltage of the plasma exciter 6 through the step-up module 13; and third, the battery device 15 is charged when it is not fully charged.

[0032] When 220V household AC power is not added, the battery device 15 is used to power the entire device in two parts. First, the step-down module 14 is used to reach the operating voltage of the fan 5, powering the fan 5 so that the fan 5 can work normally; second, the step-up module 13 is used to increase the voltage to the operating voltage of the plasma exciter 6.

[0033] Plasma actuator 6, such as Figure 4 and Figure 5 As shown, the plasma actuator 6 has a ring structure, and there are several plasma actuators 6 arranged in parallel to form a multi-stage synthetic jet plasma actuator configuration. The peak-to-peak voltage of the multi-stage synthetic jet plasma actuator configuration is 7kV-18kV. Each plasma actuator 6 includes an annular insulating dielectric layer 601, and an upper electrode 602 and a lower electrode 603 are respectively provided on the circular ring surfaces on both sides of the annular insulating dielectric layer 601. The upper electrode 602 and the lower electrode 603 are respectively connected to the positive and negative poles of the battery device 15.

[0034] The thickness of the annular insulating dielectric layer 601 is 5 mm to 10 mm, and the annular insulating dielectric layer 601 is made of insulating materials such as polytetrafluoroethylene and epoxy resin. The inner diameter of the annular insulating dielectric layer 601 is 3 cm to 6 cm, and the outer diameter of the annular insulating dielectric layer 601 is 4.5 cm to 7.5 cm. The distance between the upper electrode 602 and the lower electrode 603 and the inner and outer ring edges of the annular insulating dielectric layer 601 is greater than 5 mm, so that the distance between the two electrodes on the surface of the annular insulating dielectric layer 601 is greater than 1 cm, thereby preventing the annular insulating dielectric layer 601 from being broken down.

[0035] The upper electrode 602 and the lower electrode 603 are both arc-shaped. There are several upper electrodes 602 and lower electrodes 603. Each upper electrode 602 and lower electrode 603 is concentric with the annular insulating dielectric layer 601. The thickness of each upper electrode 602 and lower electrode 603 is 0.01mm-0.2mm. The inner diameter of each upper electrode 602 and lower electrode 603 is 3.6cm-6.5cm, and the outer diameter is 3.9cm-7.2cm.

[0036] Preferably, the upper electrode 602 and the lower electrode 603 can also be set to be annular, and the upper electrode 602 and the lower electrode 603 are both concentric with the annular insulating medium layer 601. The thickness of the upper electrode 602 and the lower electrode 603 are both 0.01mm-0.2mm, and the inner diameter of the upper electrode 602 and the lower electrode 603 are 3.6cm-6.5cm, and the outer diameter is 3.9cm-7.2cm.

[0037] Among them, the upper electrode 602 and the lower electrode 603 can both be independent detachable electrodes, directly attached to the annular insulating dielectric layer 601, that is, they can be coated electrodes or buried electrodes, and the electrode materials can be metal conductive materials such as copper, iron, silver, aluminum, stainless steel, tungsten, titanium, etc.

[0038] The portable plasma sterilization and disinfection device of the present invention has the following specific embodiments:

[0039] Example 1

[0040] The portable plasma sterilization and disinfection device of the present invention includes a fan channel 1, one end of the fan channel 1 is an air outlet interface 2, the other end of the fan channel 1 is an air inlet 3, a fan 5 and a plasma exciter 6 are respectively installed inside the fan channel 1, and the plasma exciter 6 is located between the air outlet interface 2 and the fan 5. A handle 4 is also installed on the outer wall of the fan channel 1, and a battery device 15 is installed inside the handle 4. The battery device 15 is electrically connected to the fan 5 and the plasma exciter 6 respectively.

[0041] The battery device 15 includes a charging module 15-1, the output ends of the charging module 15-1 are respectively connected to the lithium battery pack 15-2 and the supercapacitor 15-3, a gauze 7 is provided in the air outlet interface 2, the air outlet interface 2 of the fan channel 1 is connected to the air outlet device 12, the air outlet device 12 is trapezoidal in shape, a handle base 8 is installed at the bottom end of the handle 4, a power supply interface 9 is provided inside the handle base 8, the power supply interface 9 is electrically connected to the fan 5, the plasma exciter 6 and the battery device 15 respectively, a step-down module 14 and a first switch 10 are also provided on the line between the power supply interface 9 and the fan 5, a step-up module 13 and a second switch 11 are also provided on the line between the power supply interface 9 and the plasma exciter 6, the step-up module 13 and the step-down module 14 are both provided inside the handle 4, and the first switch 10 and the second switch 11 are both installed on the outer wall of the fan channel 1.

[0042] The plasma exciter 6 is a ring structure, and there are several plasma exciters 6 arranged in parallel. Each plasma exciter 6 includes an annular insulating dielectric layer 601. An upper electrode 602 and a lower electrode 603 are respectively provided on the circular ring surfaces on both sides of the annular insulating dielectric layer 601. The upper electrode 602 and the lower electrode 603 are respectively connected to the positive and negative poles of the battery device 15.

[0043] The thickness of the annular insulating dielectric layer 601 is 5 mm. The annular insulating dielectric layer 601 is made of insulating materials such as polytetrafluoroethylene and epoxy resin. The inner diameter of the annular insulating dielectric layer 601 is 3 cm, and the outer diameter of the annular insulating dielectric layer 601 is 4.5 cm.

[0044] The upper electrode 602 and the lower electrode 603 are both arc-shaped. There are several upper electrodes 602 and lower electrodes 603. Each upper electrode 602 and lower electrode 603 is concentric with the annular insulating dielectric layer 601. The thickness of each upper electrode 602 and lower electrode 603 is 0.01 mm. The inner diameter of each upper electrode 602 and lower electrode 603 is 3.6 cm, and the outer diameter is 3.9 cm.

[0045] The upper electrode 602 and the lower electrode 603 can both be independent detachable electrodes directly attached to the annular insulating dielectric layer 601 in the form of coated electrodes. The electrode materials can be metal conductive materials such as copper, iron, silver, aluminum, stainless steel, tungsten, and titanium.

[0046] Example 2

[0047] The portable plasma sterilization and disinfection device of the present invention includes a fan channel 1, one end of the fan channel 1 is an air outlet interface 2, the other end of the fan channel 1 is an air inlet 3, a fan 5 and a plasma exciter 6 are respectively installed inside the fan channel 1, and the plasma exciter 6 is located between the air outlet interface 2 and the fan 5. A handle 4 is also installed on the outer wall of the fan channel 1, and a battery device 15 is installed inside the handle 4. The battery device 15 is electrically connected to the fan 5 and the plasma exciter 6 respectively.

[0048] The battery device 15 includes a charging module 15-1, the output ends of the charging module 15-1 are respectively connected to the lithium battery pack 15-2 and the supercapacitor 15-3, a gauze 7 is provided in the air outlet interface 2, the air outlet interface 2 of the fan channel 1 is connected to the air outlet device 12, the air outlet device 12 is trapezoidal in shape, a handle base 8 is installed at the bottom end of the handle 4, a power supply interface 9 is provided inside the handle base 8, the power supply interface 9 is electrically connected to the fan 5, the plasma exciter 6 and the battery device 15 respectively, a step-down module 14 and a first switch 10 are also provided on the line between the power supply interface 9 and the fan 5, a step-up module 13 and a second switch 11 are also provided on the line between the power supply interface 9 and the plasma exciter 6, the step-up module 13 and the step-down module 14 are both provided inside the handle 4, and the first switch 10 and the second switch 11 are both installed on the outer wall of the fan channel 1.

[0049] The plasma exciter 6 is a ring structure, and there are several plasma exciters 6 arranged in parallel. Each plasma exciter 6 includes an annular insulating dielectric layer 601. An upper electrode 602 and a lower electrode 603 are respectively provided on the circular ring surfaces on both sides of the annular insulating dielectric layer 601. The upper electrode 602 and the lower electrode 603 are respectively connected to the positive and negative poles of the battery device 15.

[0050] The thickness of the annular insulating dielectric layer 601 is 10 mm. The annular insulating dielectric layer 601 is made of insulating materials such as polytetrafluoroethylene and epoxy resin. The inner diameter of the annular insulating dielectric layer 601 is 6 cm, and the outer diameter of the annular insulating dielectric layer 601 is 7.5 cm.

[0051] The upper electrode 602 and the lower electrode 603 are both annular, and are concentric with the annular insulating dielectric layer 601. The thickness of the upper electrode 602 and the lower electrode 603 are both 0.2 mm. The inner diameter of the upper electrode 602 and the lower electrode 603 are both 6.5 cm, and the outer diameter is 7.2 cm.

[0052] The upper electrode 602 and the lower electrode 603 can both be independent detachable electrodes, directly attached to the annular insulating dielectric layer 601, and adopt a coated electrode method. The electrode material can be metal conductive materials such as copper, iron, silver, aluminum, stainless steel, tungsten, titanium, etc.

[0053] Example 3

[0054] The portable plasma sterilization and disinfection device of the present invention includes a fan channel 1, one end of the fan channel 1 is an air outlet interface 2, the other end of the fan channel 1 is an air inlet 3, a fan 5 and a plasma exciter 6 are respectively installed inside the fan channel 1, and the plasma exciter 6 is located between the air outlet interface 2 and the fan 5. A handle 4 is also installed on the outer wall of the fan channel 1, and a battery device 15 is installed inside the handle 4. The battery device 15 is electrically connected to the fan 5 and the plasma exciter 6 respectively.

[0055] The battery device 15 includes a charging module 15-1, the output ends of the charging module 15-1 are respectively connected to the lithium battery pack 15-2 and the supercapacitor 15-3, a gauze 7 is provided in the air outlet interface 2, the air outlet interface 2 of the fan channel 1 is connected to the air outlet device 12, the air outlet device 12 is trapezoidal in shape, a handle base 8 is installed at the bottom end of the handle 4, a power supply interface 9 is provided inside the handle base 8, the power supply interface 9 is electrically connected to the fan 5, the plasma exciter 6 and the battery device 15 respectively, a step-down module 14 and a first switch 10 are also provided on the line between the power supply interface 9 and the fan 5, a step-up module 13 and a second switch 11 are also provided on the line between the power supply interface 9 and the plasma exciter 6, the step-up module 13 and the step-down module 14 are both provided inside the handle 4, and the first switch 10 and the second switch 11 are both installed on the outer wall of the fan channel 1.

[0056] The plasma exciter 6 is a ring structure, and there are several plasma exciters 6 arranged in parallel. Each plasma exciter 6 includes an annular insulating dielectric layer 601. An upper electrode 602 and a lower electrode 603 are respectively provided on the circular ring surfaces on both sides of the annular insulating dielectric layer 601. The upper electrode 602 and the lower electrode 603 are respectively connected to the positive and negative poles of the battery device 15.

[0057] The thickness of the annular insulating dielectric layer 601 is 8 mm. The annular insulating dielectric layer 601 is made of insulating materials such as polytetrafluoroethylene and epoxy resin. The inner diameter of the annular insulating dielectric layer 601 is 5 cm, and the outer diameter of the annular insulating dielectric layer 601 is 6.5 cm.

[0058] The upper electrode 602 and the lower electrode 603 are both annular, and are concentric with the annular insulating dielectric layer 601. The thickness of the upper electrode 602 and the lower electrode 603 are both 0.15 mm, and the inner diameter of the upper electrode 602 and the lower electrode 603 are both 5.5 cm and the outer diameter is 6.2 cm.

[0059] The upper electrode 602 and the lower electrode 603 can both be independent detachable electrodes directly attached to the annular insulating dielectric layer 601 in an embedded electrode manner. The electrode materials can be metal conductive materials such as copper, iron, silver, aluminum, stainless steel, tungsten, and titanium.

[0060] It can be seen from the above embodiments that the portable plasma sterilization and disinfection device of the present invention can adjust its design parameters according to different needs, such as: the thickness of the annular insulating medium layer, the inner and outer diameters of the annular insulating medium layer, and related parameters of the electrode, etc. By adjusting it to adapt to different working conditions, it is convenient and practical and has significant sterilization and disinfection effects. At the same time, the device has the characteristics of simple structure, light weight, small size, and can be easily carried.

Claims

1. Portable plasma sterilization and disinfection device, characterized in that: The invention comprises a fan channel (1), one end of the fan channel (1) is an air outlet interface (2), the other end of the fan channel (1) is an air inlet (3), a fan (5) and a plasma exciter (6) are respectively installed inside the fan channel (1), the plasma exciter (6) is located between the air outlet interface (2) and the fan (5), and a handle (4) is further installed on the outer wall of the fan channel (1), a battery device (15) is installed inside the handle (4), and the battery device (15) is electrically connected to the fan (5) and the plasma exciter (6) respectively; A handle base (8) is installed at the bottom end of the handle (4), and a power supply interface (9) is provided inside the handle base (8). The power supply interface (9) is electrically connected to the fan (5), the plasma exciter (6) and the battery device (15) respectively. A step-down module (14) and a first switch (10) are also provided on the line between the power supply interface (9) and the fan (5). A step-up module (13) and a second switch (11) are also provided on the line between the power supply interface (9) and the plasma exciter (6). The step-up module (13) and the step-down module (14) are both provided inside the handle (4), and the first switch (10) and the second switch (11) are both installed on the outer wall of the fan channel (1); The plasma exciter (6) is a ring structure, and there are a plurality of plasma exciters (6) arranged in parallel; Each of the plasma actuators (6) comprises an annular insulating dielectric layer (601), and an upper electrode (602) and a lower electrode (603) are respectively provided on the annular surfaces on both sides of the annular insulating dielectric layer (601), and the upper electrode (602) and the lower electrode (603) are respectively connected to the positive and negative poles of the battery device (15); The thickness of the annular insulating dielectric layer (601) is 5 mm to 10 mm, the inner diameter of the annular insulating dielectric layer (601) is 3 cm to 6 cm, the outer diameter of the annular insulating dielectric layer (601) is 4.5 cm to 7.5 cm, and the distances between the upper electrode (602) and the lower electrode (603) and the inner and outer edges of the annular insulating dielectric layer (601) are both greater than 5 mm; The upper electrode (602) and the lower electrode (603) are in the shape of an arc or a ring, and both the upper electrode (602) and the lower electrode (603) are concentric with the annular insulating dielectric layer (601).

2. The portable plasma sterilization and disinfection device according to claim 1, characterized in that: The battery device (15) comprises a charging module (15-1), wherein the output end of the charging module (15-1) is respectively connected to a lithium battery pack (15-2) and a super capacitor (15-3).

3. The portable plasma sterilization and disinfection device according to claim 1, characterized in that: A gauze (7) is provided in the air outlet interface (2), and the air outlet interface (2) of the fan channel (1) is connected to the air outlet device (12).

4. The portable plasma sterilization and disinfection device according to claim 1, characterized in that: When the upper electrode (602) and the lower electrode (603) are both arc-shaped, there are a plurality of the upper electrodes (602) and the lower electrodes (603), the thickness of each of the upper electrodes (602) and the lower electrode (603) is 0.01 mm to 0.2 mm, the inner diameter of each of the upper electrodes (602) and the lower electrode (603) is 3.6 cm to 6.5 cm, and the outer diameter is 3.9 cm to 7.2 cm.

5. The portable plasma sterilization and disinfection device according to claim 1, characterized in that: When the upper electrode (602) and the lower electrode (603) are both in annular shape, the thickness of the upper electrode (602) and the lower electrode (603) are both 0.01 mm to 0.2 mm, the inner diameter of the upper electrode (602) and the lower electrode (603) are both 3.6 cm to 6.5 cm, and the outer diameter of the upper electrode (602) and the lower electrode (603) are both 3.9 cm to 7.2 cm.

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