CN219847468U - Portable electricity storage and disinfection device based on non-thermal plasma technology - Google Patents

Abstract

The utility model discloses a portable electricity storage disinfection device based on a non-thermal plasma technology, and relates to the technical field of disinfection. Has the advantages of short-time high efficiency, environmental protection, multiple functions, portability and the like. The portable electricity storage sterilizing device based on the non-thermal plasma technology comprises an upper shell and a lower shell which are mutually hinged; the upper shell and the lower shell are internally provided with accommodating cavities; a flexible surface dielectric barrier discharge structure and a power storage unit are arranged in the accommodating cavity; the flexible surface dielectric barrier discharge structure comprises an insulating medium, and a high-voltage electrode and a grounding electrode which are respectively attached to the upper side and the lower side of the insulating medium; the grounding electrode is a grid-shaped metal electrode; the latticed metal electrode is positioned at the opening part of the accommodating cavity; the high-voltage electrode is connected with the positive electrode of the electricity storage unit; the negative electrode and the grounding electrode of the electricity storage unit are grounded. The utility model is used for improving the performance of the sterilizing device.

Description

Portable electricity storage and disinfection device based on non-thermal plasma technology

Technical Field

The utility model relates to the technical field of disinfection and sterilization, in particular to a portable electricity storage disinfection device based on a non-thermal plasma technology.

Background

Current sterilization techniques mainly include physical sterilization and chemical sterilization. The physical sterilization portable application technology is mainly ultraviolet sterilization. Ultraviolet sterilization can be used for air sterilization and object surface sterilization, but the ultraviolet radiation energy is low, the penetrating power is weak, only microorganisms directly irradiated can be killed, dead angles exist, the time is long, and the fast-paced requirements are not met. The chemical sterilization mainly adopts chemical agents including 84 disinfectant, ethylene oxide, alcohol, hydrogen peroxide and the like, is generally used for wiping and sterilizing the surfaces of objects and spraying and sterilizing air, has weak effect, has the problems of peculiar smell and toxic residues, and is accumulated for a long time to damage the health of human bodies.

In addition, the carrier of the current disinfection technology has single function and can be taken as an additional object for carrying out, thereby causing additional burden to the user. The non-portable disinfection and sterilization device is often concentrated in a sanitary disinfection place, and is arranged with or without alignment, so that the flexible requirement of disinfection and sterilization is difficult to meet.

Therefore, there is a need to develop a portable, high-efficiency, multi-functional sterilization tool.

Disclosure of Invention

The embodiment of the utility model provides a portable electricity storage and disinfection device based on a non-thermal plasma technology, which has the advantages of short-time high efficiency, environmental protection, multiple functions, portability and the like.

In order to achieve the above object, an embodiment of the present utility model provides a portable electricity storage and sterilization device based on a non-thermal plasma technology, which includes an upper case and a lower case hinged to each other; the upper shell and the lower shell are internally provided with accommodating cavities; a flexible surface dielectric barrier discharge structure and an electricity storage unit are arranged in the accommodating cavity; the flexible surface dielectric barrier discharge structure comprises an insulating medium, and a high-voltage electrode and a grounding electrode which are respectively attached to the upper side and the lower side of the insulating medium; the grounding electrode is a grid-shaped metal electrode; the latticed metal electrode is positioned at the opening part of the accommodating cavity; the high-voltage electrode is connected with the anode of the electricity storage unit; the negative electrode of the electricity storage unit and the grounding electrode are grounded.

Further, the latticed metal electrode is of a nested structure; the latticed metal electrode is connected to the insulating medium through nylon screws and is tightly attached to the surface of the insulating medium; or the latticed metal electrode is sprayed/plated on the surface of the insulating medium.

Further, the upper shell, the lower shell and the insulating medium are made of polytetrafluoroethylene or insulating ceramics.

Further, the high-voltage electrode is a metal sheet.

Further, the upper shell and the lower shell are hinged through a hinge shaft; a pull-in cover plate is arranged on the outer side of one of the latticed metal electrodes, the pull-in cover plate is linked with the hinge shaft through a gear pair, and when the upper shell and the lower shell are far away, the hinge shaft rotates positively and drives the gear pair to move so that the cover plate is retracted to expose the latticed metal electrode; when the upper shell and the lower shell are close, the hinge shaft reversely rotates and drives the gear pair to move, so that the cover plate is unfolded to cover the latticed metal electrode; the pull-in cover plate is made of soft insulating materials.

Further, the electricity storage unit is provided with a plurality of self-charging ports and a plurality of power transmission ports; and through holes corresponding to the self-charging port and the power transmission port are formed in the side walls of the upper shell and the lower shell.

Further, the self-charging port comprises a Micro USB interface, a lighting interface and a Type-C interface.

Further, an LED display screen for displaying basic parameters of the device is arranged on the upper shell.

Further, a main switch, a killing switch and a charging switch are arranged on the hinge shaft; the main switch is connected to the rear end of the electricity storage unit, and the front ends of the charging switch and the killing switch; the disinfection switch is connected between the flexible surface dielectric barrier discharge structure and the electricity storage unit; the charging switch is connected between the LED display screen, the self-charging port and the electricity storage unit.

Further, the upper shell is provided with an OFF indicator lamp, a disinfection indicator lamp and a charging indicator lamp; the OFF indicator light is connected with the main switch; the killing indicator lamp is connected with the killing switch; the charging indicator lamp is connected with the charging switch.

Compared with the prior art, the utility model has the following beneficial effects:

1. the embodiment of the utility model utilizes substances such as high-activity particles, ultraviolet rays, ozone and the like in the plasma, can effectively realize the disinfection of typical pathogenic bacteria such as staphylococcus aureus, candida albicans, escherichia coli, staphylococcus epidermidis, pyococcus and the like on human skin and common viruses, and ensures the disinfection requirement.

2. According to the embodiment of the utility model, the metal electrode is driven by the internal electricity storage unit to generate the non-thermal plasma, the discharge form is novel and simple, the large-area plasma can be generated under lower externally applied voltage, the energy consumption can be effectively reduced, and the treatment efficiency can be improved.

3. The embodiment of the utility model is coupled with the charge and discharge function, thoroughly solves the problems of single application and inconvenient carrying of the traditional disinfection equipment, changes the disinfection application into diversified application elements of equipment necessary for life, improves the flexibility of use and reduces the burden of users.

4. The embodiment of the utility model can normally work at normal temperature and normal pressure, has lower cost, can flexibly adjust and control the treatment capacity, and is convenient to assemble, disassemble and maintain.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a portable electricity storage and killing device based on a non-thermal plasma technology according to an embodiment of the present utility model when stacked;

FIG. 2 is a state diagram of a portable stored electricity kill apparatus based on a non-thermal plasma technology according to an embodiment of the present utility model when deployed;

fig. 3 is a schematic structural diagram of a front end face of a portable electricity storage and sterilization device based on a non-thermal plasma technology according to an embodiment of the present utility model;

FIG. 4 is a circuit logic flow diagram of a portable stored electricity kill apparatus based on a non-thermal plasma technology in accordance with an embodiment of the present utility model;

fig. 5 is a schematic structural diagram of an along-plane dielectric barrier discharge structure in a portable electric storage killing device based on a non-thermal plasma technology according to an embodiment of the present utility model;

fig. 6 is a schematic structural diagram of a pull-in cover plate in a portable electricity-storage disinfection device based on a non-thermal plasma technology according to an embodiment of the utility model.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; the specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

The plasma sterilizing technology is that substances generated by atmospheric pressure discharge are in a fourth state, and the substances are rich in charged particles, high-activity components, ultraviolet rays, ozone and the like, and the plasma indirectly or directly acts with microorganisms to destroy the organic structures of the microorganisms on the molecular level and destroy the metabolism balance of the microorganisms, so that short-time efficient sterilization is realized. The plasma combines the disinfection and sterilization functions of high-activity particles, ultraviolet rays and ozone, and can effectively kill bacteria and viruses on surfaces of objects.

The embodiment of the utility model provides a portable electricity storage disinfection device based on a non-thermal plasma technology, which has two functions of portable disinfection and sterilization and serving as a chargeable mobile power supply. The device is of a folding structure, and when being stacked, the device mainly realizes the function of serving as a chargeable mobile power supply; after the plasma sterilizing device is unfolded, large-area plasma can be generated to be contacted with skin, fabrics, packaging boxes or other equipment to be sterilized, so that short-time efficient sterilization is realized.

Referring to fig. 1 and 2, the portable electricity storage and sterilization device based on the non-thermal plasma technology according to the embodiment of the present utility model includes an upper case 1 and a lower case 2 hinged to each other through a hinge shaft 3. The buckling part of the upper shell 1 and the lower shell is provided with a buckle 17. The buckle 17 can make the upper case 1 and the lower case 2 fastened more firmly.

Wherein, referring to fig. 2 and 5, the upper case 1 and the lower case 2 are both made of insulating materials having good insulating properties, such as polytetrafluoroethylene and insulating ceramics, to secure the safety of the apparatus. The upper shell 1 and the lower shell 2 are respectively internally provided with a containing cavity. A flexible surface dielectric barrier discharge structure and a power storage unit 4 are arranged in the accommodating cavity.

Referring to fig. 5, the flexible planar dielectric barrier discharge structure includes an insulating medium 6 and high voltage electrodes 5 and ground electrodes 7 applied to upper and lower sides of the insulating medium 6, respectively. The grounding electrode 7 is a latticed metal electrode, and the grounding electrode 7 and the insulating medium 6 jointly form a boosting module. The high-voltage electrode 5 is arranged near the bottom of the accommodating cavity, and the latticed metal electrode is positioned at the mouth of the accommodating cavity. Thereby, the high voltage electrode 5 is located inside the insulating medium 6, i.e. inside the device, ensuring the safety of the user. Meanwhile, the high-voltage electrode 5 is directly connected with an internal circuit of the device, and the circuit is powered by a built-in power supply, so that portability and flexibility of disinfection of the device are ensured. Insulating medium 6 is also made of insulating materials with good insulating performance, such as polytetrafluoroethylene and insulating ceramics, so as to ensure the safety of equipment.

The high-voltage electrode 5 is connected with the positive electrode of the electricity storage unit 4, and the grounding electrode 7 and the negative electrode of the electricity storage unit 4 are grounded. The latticed metal electrode is of a nested structure (sheet metal mesh), and the sheet metal mesh can be tightly attached to the surface of the insulating medium 6 through nylon screws, so that the electrode sheet can be detached and replaced if the grounding electrode 7 reaches the service life. In addition, the surface of the insulating medium 6 can also be directly sprayed/plated with metal grids, so that the processing is more convenient. The high-voltage electrode 5 is a metal sheet. It should be noted that: the latticed metal electrode and the metal sheet are used as the device electrode, and are made of metal materials with good electric conductivity, such as gold, silver, copper and the like. Therefore, the grid-shaped metal electrode is used as a grounding electrode, the metal sheet is used as a high-voltage electrode, the two electrodes are attached to two sides of the insulating medium, and when the high-voltage electrode is electrified, large-area micro-discharge is formed near the mesh of the grid-shaped metal electrode due to large local field intensity, so that plasma required by application is generated.

Referring to fig. 6, a pull-in type cover plate is provided at an outer side of one of the latticed metal electrodes, and includes a pull-in shaft 20 and a cover plate 21. The pull-in shaft 20 is arranged perpendicularly to the hinge shaft 3. The cover 21 may be rolled up on the pull-in shaft 20. The gear pair comprises a transverse gear 18 and a longitudinal gear 19 which are intermeshed. A transverse gear 18 is connected to the end of the hinge shaft 3 and a longitudinal gear 19 is connected to the end of the pull-in shaft 20. In this way, the cover plate 21 can be interlocked with the hinge shaft 3 after being turned by the pull-in shaft 20, the longitudinal gear 19 and the transverse gear 18

Specifically, when the upper shell 1 and the lower shell 2 are far away, the hinge shaft 3 rotates forward to drive the transverse gear 18 to rotate, so that the longitudinal gear 19 is caused to rotate, and the pull-in shaft 20 is driven to retract the cover plate 21 to expose the latticed metal electrode; when the upper case 1 and the lower case 2 are close, the hinge shaft 3 rotates reversely, and the gear pair converts into the reverse rotation of the pull-in shaft 20, so that the cover plate 21 is unfolded to cover the latticed metal electrode. In addition, the pull-in cover plate 21 is made of a soft material with good insulating properties such as insulating rubber, so that abrasion of the mesh-like metal electrode is avoided while ensuring safety.

Referring to fig. 3, the electricity storage unit 4 is provided with a plurality of self-charging ports 8 and a plurality of power transmission ports 9. Through holes corresponding to the self-charging port 8 and the power transmission port 9 are arranged on the side walls of the upper shell 1 and the lower shell 2. Specifically, the self-charging port 8 includes a Micro USB interface, a lighting interface, and a Type-C interface. One part of the plurality of power transmission ports 9 is provided on the upper case 1, and the other part is provided on the lower case 2.

Referring to fig. 1, a main switch 10, a kill switch 11, and a charge switch 12 are provided on the hinge shaft 4. The upper shell 1 is provided with an OFF indicator light 13, a kill indicator light 14, a charging indicator light 15 and an LED display screen 16. The main switch 10 is connected to the rear end of the electricity storage unit 4, and the front ends of the charging switch 12 and the sterilizing switch 11. For controlling the switches of the charge switch 12 and the kill switch 11. The kill switch 11 is connected between the flexible faceted dielectric barrier discharge structure and the power storage unit 4. The charging switch 12 is connected between the LED display 16, the power transmission port 9 and the power storage unit 4. An "OFF" indicator light 13 is connected to the main switch 10 for indicating that the main switch 10 is turned on. The kill indicator lamp 14 is connected with the kill switch 11 for indicating that the kill indicator lamp 14 is turned on. The charging indicator light 15 is connected to the charging switch 12, and is used for indicating that the charging switch 12 is turned on. The LED display screen 16 is used for displaying basic parameters of equipment, including the electric quantity, clocks and plasma driving electrode life of the two electricity storage units 4, so that the device is friendly in design, simple and convenient to use and has strong man-machine interaction capability.

The working principle of the portable electricity storage and sterilization device based on the non-thermal plasma technology in the embodiment of the utility model is as follows:

1. realize the function of charging:

referring to fig. 1 and 4, the device, when in a folded state, primarily functions as a rechargeable portable power source. Specifically, when other devices need to be charged, the charging switch 12 is pressed, the charging indicator lamp 15 is turned on, and the LED display screen 16 is flashed to display the electric quantity of the two electricity storage units 4 at the time.

And connecting the mobile phone waiting charging equipment to the power transmission port 9 at the bottom of each power storage unit 4 to complete the charging function.

When the mobile power supply has insufficient electric quantity, the self-charging operation can be carried out through the self-charging port 8 arranged at the bottom of the device, and the flexibility of self-charging of the equipment can be ensured through three common interfaces.

2. Realize the function of plasma disinfection:

referring to fig. 2 and 4, the folded device is unfolded to drive the hinge shaft 3 to rotate, and because the hinge shaft 3 and the cover plate 21 arranged outside the latticed metal electrode are in a linkage structure, when the hinge shaft 3 rotates and the device is unfolded, the cover plate 21 is folded upwards, and the latticed metal electrode is exposed.

When the kill switch 11 is pressed, the kill indicator lamp 14 in the function indicator lamp is lighted, and the LED display screen 16 is lighted, at this time, the electric quantity of the electricity storage unit 4 and the service life of the plasma driving electrode can be observed. The service life of the plasma driving electrode is the effective application time of generating plasma by the electrode which is repeatedly tested and measured for a plurality of times, and the effective application time is smaller than the maximum application time (electrode scrapping critical point) of the electrode, so that the high efficiency of sterilization application and the safety of equipment use are ensured.

If the electric quantity and the electrode life of the electricity storage unit 4 meet the application requirements, the surface grid-shaped metal electrode is contacted with the object surface to generate large-area plasma, so that the disinfection requirements are realized.

After the sterilization is finished, the device is closed, the hinge shaft 3 reversely rotates, the cover plate 21 is unfolded downwards, and finally the grid-shaped metal electrode is covered. When the device is closed, the service life of the electrode is not affected because the two grid-shaped metal electrodes are mutually worn.

For example, when the portable electricity storage and sterilization devices based on the non-thermal plasma technology are stacked, the length is 8-15 cm, the width is 3-8 cm, the thickness is 2-6 cm, and the portability of the device is ensured by the small design. When the device is unfolded, the thickness is 1-3 cm, the length of the latticed metal electrode (10) is 7-14 cm, the width is 2-7 cm, and the thickness is 0.5-2 mm.

The applicant adopts the electrode structure to carry out plasma disinfection experiments on escherichia coli in the early stage, obtains comparatively ideal sterilization effect, adopts a high-voltage pulse power supply to drive an SDBD electrode in the experiments, and sets parameters as follows: the voltage is 5kV, the frequency is 5kHz, and the pulse width is 100ns. The distance from the SDBD electrode to the material to be treated is changed to be 0 cm, 0.5 cm, 1 cm and 1.5cm respectively, and the sterilization effect is observed.

The specific bactericidal effect is shown in table 1:

TABLE 1SDBD sterilizing Effect

As the bacterial concentration further increased, the along-plane dielectric barrier discharge still exhibited a sterilizing effect of 99% or more, as shown in table 2:

TABLE 2 SDBD sterilizing Effect when colonies were increased

3. Stop working:

when the utility model stops working, the main switch 10 is pressed down, the OFF indicator lamp 13 blinks for 10s, the device is turned OFF, the sterilizing function and the charging function are finished, and only the self-charging operation is supported.

The present utility model is not limited to the above embodiments, and any changes or substitutions within the technical scope of the present utility model should be covered by the scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.

Claims (10)

1. The portable electricity storage and sterilization device based on the non-thermal plasma technology is characterized by comprising an upper shell and a lower shell which are hinged with each other; the upper shell and the lower shell are internally provided with accommodating cavities; a flexible surface dielectric barrier discharge structure and an electricity storage unit are arranged in the accommodating cavity; the flexible surface dielectric barrier discharge structure comprises an insulating medium, and a high-voltage electrode and a grounding electrode which are respectively attached to the upper side and the lower side of the insulating medium; the grounding electrode is a grid-shaped metal electrode; the latticed metal electrode is positioned at the opening part of the accommodating cavity; the high-voltage electrode is connected with the anode of the electricity storage unit; the negative electrode of the electricity storage unit and the grounding electrode are grounded.

2. The portable power storage and sterilization device based on non-thermal plasma technology according to claim 1, wherein the grid-like metal electrode is of a nested structure; the latticed metal electrode is connected to the insulating medium through nylon screws and is tightly attached to the surface of the insulating medium; or the latticed metal electrode is sprayed/plated on the surface of the insulating medium.

3. The portable power storage and sterilization device based on the non-thermal plasma technology according to claim 1, wherein the upper shell, the lower shell and the insulating medium are made of polytetrafluoroethylene or insulating ceramics.

4. The portable power storage and sterilization device based on non-thermal plasma technology according to claim 1, wherein the high voltage electrode is a metal sheet.

5. The portable electricity storage and sterilization device based on the non-thermal plasma technology according to claim 1, wherein the upper housing and the lower housing are hinged through a hinge shaft; a pull-in cover plate is arranged on the outer side of one of the latticed metal electrodes, the pull-in cover plate is linked with the hinge shaft through a gear pair, and when the upper shell and the lower shell are far away, the hinge shaft rotates positively and drives the gear pair to move so that the cover plate is retracted to expose the latticed metal electrode; when the upper shell and the lower shell are close, the hinge shaft reversely rotates and drives the gear pair to move, so that the cover plate is unfolded to cover the latticed metal electrode; the pull-in cover plate is made of soft insulating materials.

6. The portable electricity storage and sterilization device based on the non-thermal plasma technology according to claim 5, wherein a plurality of self-charging ports and a plurality of power transmission ports are arranged on the electricity storage unit; and through holes corresponding to the self-charging port and the power transmission port are formed in the side walls of the upper shell and the lower shell.

7. The portable power storage and sterilization device based on non-thermal plasma technology according to claim 6, wherein the self-charging port comprises a Micro USB interface, a lighting interface, and a Type-C interface.

8. The portable power storage and sterilization device based on the non-thermal plasma technology according to claim 6, wherein the upper shell is provided with an LED display screen for displaying basic parameters of the device.

9. The portable electricity storage and sterilization device based on the non-thermal plasma technology according to claim 8, wherein a main switch, a sterilization switch and a charging switch are arranged on the hinge shaft; the main switch is connected to the rear end of the electricity storage unit, and the front ends of the charging switch and the killing switch; the disinfection switch is connected between the flexible surface dielectric barrier discharge structure and the electricity storage unit; the charging switch is connected between the LED display screen, the self-charging port and the electricity storage unit.

10. The portable electricity storage and sterilization device based on the non-thermal plasma technology according to claim 9, wherein an OFF indicator lamp, a sterilization indicator lamp and a charging indicator lamp are arranged on the upper shell; the OFF indicator light is connected with the main switch; the killing indicator lamp is connected with the killing switch; the charging indicator lamp is connected with the charging switch.