CN213994368U

CN213994368U - Portable air disinfection instrument

Info

Publication number: CN213994368U
Application number: CN202020569109.8U
Authority: CN
Inventors: 黄庆; 马国理; 倪光耀; 王伟; 方舸
Original assignee: Xinnuo Atmospheric Environmental Technology Nanjing Co ltd
Current assignee: Xinnuo Atmospheric Environmental Technology Nanjing Co ltd
Priority date: 2020-04-16
Filing date: 2020-04-16
Publication date: 2021-08-20
Anticipated expiration: 2030-04-16

Abstract

The utility model belongs to the field of air disinfection equipment, a portable air disinfection instrument is disclosed. The portable air disinfection instrument comprises a shell, a power supply, an adjusting device, an air disinfection device, an air duct and a ventilation device, wherein the air disinfection device is positioned in the air duct in the shell, one end of the air duct is provided with an air inlet, the other end of the air duct is provided with an air outlet, the ventilation device is positioned at one end of the air duct, the air disinfection device is electrically connected with the adjusting device, the adjusting device is electrically connected with the power supply, and the ventilation device is electrically connected with the power supply and/or the adjusting device. The portable air sterilizer can be carried by an individual to kill microorganisms in the surrounding environment, and has a good effect on protecting the individual from infectious diseases transmitted through the air, such as neocoronary pneumonia, influenza and the like.

Description

Portable air disinfection instrument

Technical Field

The utility model belongs to the air disinfection equipment field relates to a portable air disinfection instrument.

Background

With the outbreak of new coronavirus, a simple and effective method for cutting off the main transmission path of the new coronavirus from the human individual in social occasions is to wear a mask, but the mask has adverse factors of breathing interference, frequent exchange, incapability of face recognition and the like. The portable air disinfection equipment is adopted to directly kill bacteria and viruses in the environment of the breathing zone of human individuals and interrupt the infection way of the virus and bacteria spread by air aerosol, and the method is a feasible method for replacing wearing a mask in a low-infection risk area. However, the existing air disinfection equipment is large in size, inconvenient to carry and not suitable for personal protection.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a portable air disinfection instrument aiming at the technical problem.

The purpose of the utility model is realized by the following technical scheme:

a portable air disinfection instrument comprises a shell, a power supply, an adjusting device, an air disinfection device, an air duct and a ventilation device, wherein the air disinfection device is arranged in the air duct in the shell, one end of the air duct is provided with an air inlet, the other end of the air duct is provided with an air outlet, the ventilation device is arranged at one end of the air duct, the air disinfection device is electrically connected with the adjusting device, the adjusting device is electrically connected with the power supply, and the ventilation device is electrically connected with the power supply and/or the adjusting device.

The portable air disinfection instrument adopts an alternating current power supply or a direct current power supply, further, the direct current power supply is a rechargeable battery or a dry battery, and further, the rechargeable battery is preferably a lithium ion battery. Can be connected with commercial power and placed in a proper position indoors and outdoors for work or charging, and can also be directly powered by a battery to be carried with a person for use outdoors.

The portable air disinfection instrument is characterized in that the air disinfection device is a cold plasma air disinfection device (the main body is a plasma generator), the high-pressure end of the cold plasma air disinfection device is positioned on one side of an air inlet of an air duct, and the low-pressure end of the cold plasma air disinfection device is positioned on one side of an air outlet of the air duct.

The portable air sterilizer comprises a regulating device, a control device and a control device, wherein the regulating device comprises a microprocessor control Module (MCU), a power supply management module, a power supply voltage conversion module (such as DC-DC) and a state/mode switching module; the microprocessor control Module (MCU) contains an air disinfection device adjusting module and a ventilation device adjusting module; further, the air sterilizing device adjusting module includes a cold plasma generation intensity adjusting module (for example, setting different intensity levels of low intensity, medium intensity and high intensity, adopting high intensity at the initial stage of environmental sterilization, and adopting low intensity during maintenance), a working mode adjusting module (for example, program control setting of continuous working time or gap time combined with different intensities); the ventilation device adjusting module is matched with the air disinfection device adjusting module (such as large ventilation volume matched with high intensity and synchronous ventilation time matched with a working mode) or is independently arranged (such as continuous constant ventilation and the like); furthermore, the adjusting device also comprises a wireless communication module.

The portable air disinfection instrument comprises a main board, a high-pressure plate and an adjusting button, wherein the main board is electrically connected with a power supply, the high-pressure plate is electrically connected with the main board and the plasma air disinfection device, and the adjusting button is electrically connected with the main board through a key board; adjustment button includes shift knob, intensity adjustment button, mode button, and further, the mainboard is equipped with wireless communication module, adopts wireless communication mode and intelligent Mobile terminal to adjust or adopt wireless communication mode and high in the clouds server to carry out data interchange like equipment such as cell-phone, flat board, remote controller.

The portable air sterilizer is characterized in that the ventilation device is a fan. The fan is arranged at one end of the air duct and can blow air or suck air to enable the air to flow in from the air inlet and to be discharged from the air outlet.

The portable air sterilizer is also provided with a display device which is a digital display screen and an LED lamp (different states are displayed through different colors or different states are displayed through the lightening quantity or the flashing frequency of an LDE lamp).

Cold plasma: also called low-temperature plasma, is characterized by the following compared with the high-temperature plasma in the system: the temperature of electrons is very high and can reach thousands of degrees centigrade, but the electrons, ions and neutral particles in the electrons cannot conduct energy sufficiently and are in a non-thermal equilibrium state, so that the whole system is represented as normal temperature in a macroscopic view.

The utility model has the advantages that

The utility model discloses a portable air disinfection appearance, make things convenient for the individual to carry and remove the use, can disinfect to the air around the human body, can kill the bacterium in the air, microorganism such as virus, form the space of no microorganism in certain extent around the human body, pass through the communicable disease of air propagation to personal protection like new crown pneumonia, there is better effect such as flu, fundamentally eliminates microorganism such as virus, solve the above-mentioned bad factor of wearing the gauze mask, the protective effect is good simultaneously (combine the result of use better with the gauze mask, the risk of having avoided partial people to wear the gauze mask production incorrectly.

The innovation point of the utility model is mainly embodied in that the miniaturization of the cold plasma generating device is realized, so that the cold plasma generating device can be conveniently and portably used by individuals. Under the condition that the volume of the cold plasma generator is reduced, the cold plasma with high intensity and high energy can be generated through dynamic comprehensive management of parameters such as high frequency and high voltage required by the cold plasma generator, the power consumption is lower than 5W, and the situations of overload damage and the like of the plasma generator cannot be caused. Specifically, the utility model discloses a lithium ion battery power supply (fixed place can also directly use the alternating current to charge while working like indoor), battery charge-discharge is controlled by power management circuit, and MCU monitors battery management circuit working condition simultaneously, provides stable operating voltage for cold plasma generator and fan through DCDC conversion module is stable, has guaranteed the stability of output when battery voltage descends, and the closing and the adjustment of fan and plasma carry out program control through MCU; MCU conveys the equipment operation and the battery condition information of collecting to the state display module (show through LED or digital display screen) simultaneously, the high concentration symmetry positive and negative particle that plasma generator produced blows out through the fan, the high concentration symmetry positive and negative particle is to the oxygen molecule in the air around the cold plasma pipe simultaneously, nitrogen gas molecule, the hydrone ionizes, produce and use oxygen, nitrogen, water as the active group of base member, these groups and high concentration symmetry positive and negative particle etc. combined action, disinfect the degerming to virus bacterium in the surrounding environment.

The utility model discloses the product can produce and be greater than 10⁶Per cm³The concentration of the positive and negative particles is symmetrical, a large amount of ionized active oxygen ions, nitrogen ions, hydrogen peroxide ions and other high-energy free radicals are simultaneously generated in the cold plasma, and the components are easy to chemically react with proteins and nucleic acids in bacteria, moulds, spores and viruses, so that microorganisms can be destroyed and the survival function of the microorganisms can be disturbed, and various microorganisms can die, thereby achieving the effects of disinfection and sterilization; different from an ozone generator which adopts the principle of electric field electron drift under direct current high voltage, electron clouds generated by cold plasma are in the same time sequence, and the quantity of positive ions and negative ions has symmetry; i.e. the number of positrons 10⁶Per cm^3，The number of negative electrons is also symmetrical to 10⁶Per cm^3，(ii) a Simultaneous electron energy (>7 electron volts) is much larger than the electron energy of the electron drift (1-1.5 electron volts) of the electric field at high dc voltage. The cold plasma generator adopts a working mode of combining high frequency and high voltage (high voltage: 5000-8000V/frequency: 10 kHz-500 kHz), namely, the high concentration and symmetry of positive and negative particles of the cold plasma are ensured, and the generation of ozone is reduced by controlling the frequency; aiming at the characteristic of portability of the product, the cold plasma generator is required to have the characteristics of small volume, low power consumption, high concentration and symmetry of positive and negative particles, and the concentration of the generated plasma is ensured to meet the requirements of sterilization and disinfection; on the design of a high-frequency high-voltage working power supply, a conversion circuit with high conversion efficiency and a pulse output mode are selected, so that the heat loss of the circuit is reduced, and the energy efficiency ratio is improved; by using the cold plasma generator with different working modes to surround 1M³The data collection and analysis of the positive and negative particle concentration in space, the programmed design of the working mode and working time of the cold plasma generator, and the guarantee of cold plasmaThe working time of the whole machine is prolonged while the daughter generator has the effect; the running control system of the machine adopts an ARM framework, the system can work according to an optimized program when being started, in the running process, data such as working voltage and frequency of a cold plasma module, DCDC output voltage, battery voltage and working current of a fan can be fed back to the MCU, the MCU processes and judges the feedback data and makes corresponding adjustment according to a preset program according to a judgment result, so that the machine can run in an optimal mode all the time, and the running stability is improved. When the parameters of each functional module exceed the normal range, the MCU judges that an abnormality occurs and automatically shuts down the computer. All the designs effectively ensure the standby time, stable performance and high reliability of the whole machine;

the utility model is tested to be worn with oneself, and can kill various viruses and bacteria within 1m of human body in 2-10 minutes. Can block contact infection, air infection and vector infection.

Attached: the environment system of the university of Compound Dan uses the utility model discloses the product tests new coronavirus disinfection effect

1. Preparation of the experiment

1.1. Sample preparation

A plasmid containing the N gene of the novel coronavirus was selected as a nucleic acid sample. The concentration is 10^ 4/ul.

1.2. Reagent preparation

A new coronavirus N gene detection reagent (approved by European Union) developed by the cooperation of double-denier university and Yaozhou medicine (double-star medicine) is selected for testing.

1.3. Instrumentation and equipment

The utility model discloses cold plasma air disinfection appearance, constant temperature nucleic acid amplification appearance.

2. Experiment of

2.1. After the instrument was charged, the instrument was fixed to an iron stand.

2.2. 1 microliter of plasmid was dropped onto the slide glass, and air-dried naturally.

2.3 design the distance between the glass slide and the air outlet of the instrument, the gear position of the instrument and the processing time according to the following table

Numbering	Distance between two adjacent plates	Gear position	Time
				1	1cm	Height of	1min
2	1cm	Height of	5min
				3	1cm	Height of	10min
4	10cm	Height of	1min
				5	10cm	Height of	5min
6	10cm	Height of	10min
				7	1cm	Is low in	1min
8	1cm	Is low in	5min
				9	1cm	Is low in	10min
10	10cm	Is low in	1min
				11	10cm	Is low in	5min
12	10cm	Is low in	10min

2.4 elution of plasmid loading position with 5. mu.l of purified water, followed by detection with detection reagent.

3. The result of the detection

The results were analyzed as follows:

the detection limit of the reagent is about 10^2 copies.

Under the condition of strong grade, the treatment lasts more than 5 minutes, most of nucleic acid can be degraded, and under the condition of weak grade, the treatment effect is better only after 10 minutes.

The nucleic acid of the novel coronavirus is RNA which is more easily degraded than the DNA used in the experiment, so that the disinfection effect is better in the actual operation.

Note: in the experiment, the concentration of the new coronavirus N gene nucleic acid sample is 10^4/ul, which is equivalent to the carrying capacity of a standard patient.

Weak positive: the isothermal nucleic acid amplification instrument detects the N gene nucleic acid of the new coronavirus and has weak electric signals.

Negative: the isothermal nucleic acid amplification instrument can not detect the N gene nucleic acid of the new coronavirus.

Drawings

Fig. 1 shows an embodiment of the present invention.

Fig. 2 shows another embodiment of the present invention.

Wherein 1 is the casing, 2 is the high pressure board, 3 is the button, 4 is the keypad, 5 is the mainboard, 6 is the battery, 7 is the air outlet, 8 is cold plasma generator low-pressure end, 9 is the wind channel, 10 is cold plasma generator high-pressure end, 11 is the fan, 12 is the air intake, 13 is cold plasma generator, 14 is display device.

Fig. 3 is a schematic diagram of the system of the present invention.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

Example 1

Referring to fig. 1, the portable air sterilizer comprises a housing 1, a battery 6, a main board 5, a cold plasma generator 13, an air duct 9 and a fan 11, wherein the cold plasma generator 13 is an air sterilizing device and is installed in the air duct 9 in the housing, one end of the air duct is provided with an air inlet 12, the other end of the air duct is provided with an air outlet 7, the fan 11 is positioned at one end of the air inlet of the air duct 9 and pumps air into the air duct, a high-pressure end 10 of the cold plasma generator is positioned at one side of the air inlet of the air duct, a low-pressure end 8 of the cold plasma generator is positioned at one side of the air outlet of the air duct, the cold plasma generator 13 is electrically connected with the main board 5 through a high-pressure plate 2, the main board 5 is electrically connected with the main board 5 through a high-pressure plate 2 (a DCDC module) to supply power to the cold plasma generator 13 for generation, high-concentration symmetrical, nitrogen molecules and water molecules are ionized to generate active groups with oxygen, nitrogen and water as matrixes, the groups and high-concentration symmetrical positive and negative particles jointly act to kill viruses and bacteria in the surrounding environment, the keys 3 are adjusting buttons and are electrically connected with the main board 5 through the key board 4, and the keys 3 are used for switching and adjusting the wind speed (adjusting the sterilization intensity and the working mode), and the adjusting buttons comprise switch buttons, intensity adjusting buttons, working mode buttons and the like.

The adjusting device of the portable air disinfection instrument comprises a mainboard 5, a high-voltage board 2 and an adjusting button 3, wherein the mainboard is electrically connected with a power supply, the high-voltage board 2 is electrically connected with the mainboard 5 and a cold plasma air disinfection device 13, and the adjusting button 3 is electrically connected with the mainboard 5 through a key board 4; the adjusting button comprises a switch button, an intensity adjusting button and a working mode button.

With reference to the system diagram of fig. 3, the adjusting module in the main board of the present invention includes a microprocessor control Module (MCU), a power management module, a power voltage conversion module (such as DC-DC), and a state/mode switching module; the microprocessor control Module (MCU) contains an air disinfection device adjusting module and a ventilation device adjusting module; the air sterilizing device adjusting module comprises a cold plasma generation intensity adjusting module (which can be set with different intensity levels of low intensity, medium intensity and high intensity, adopts high intensity at the initial stage of environmental sterilization and adopts low intensity during maintenance), and a working mode adjusting module (which is combined with different intensities and is used for program control setting of continuous working time or gap time); the ventilation device adjusting module is matched with the air disinfection device adjusting module (large ventilation volume matched with high strength, synchronous ventilation time matched with working mode) or is independently arranged (continuous constant ventilation and the like). Each adjusting module can be integrated in a mainboard or can be divided into a plurality of mainboards according to functions, so that the functions of different types of products can be conveniently expanded or reduced.

In a portable requirement, a lithium ion battery is used for supplying power in daily life (a fixed place such as a room can also directly use alternating current to charge and work at the same time), the charging and discharging of the battery are controlled by a power management module, meanwhile, an MCU monitors the working condition of a battery management circuit, a working instruction is sent to the MCU through a state/mode switching module, a stable working voltage is stably provided for a cold plasma generator and a fan through a DCDC conversion module, the stability of output when the voltage of the battery is reduced is ensured, and the closing and adjustment of the fan and the plasma generator are controlled by a program through the MCU; MCU conveys the equipment operation and the battery condition information who collects simultaneously to state display module (show through LED or digital display screen), and the positive and negative particle of high concentration symmetry that cold plasma generator produced blows out through the fan, to the oxygen molecule in the ambient air, nitrogen gas molecule, the hydrone ionizes, produces and uses oxygen, nitrogen, the active group of water as the base member, and these groups and high concentration symmetry positive and negative particle combined action disinfect the degerming to virus bacterium in the surrounding environment.

Example 2

The adjustment device further includes a wireless communication module (which may be disposed in the main board 5 or separately (which is separately disposed to facilitate the function expansion or reduction of products of different grades)), and the rest is the same as in embodiment 1. The wireless communication mode is adopted to be connected with an intelligent mobile terminal such as a mobile phone, a tablet, a remote controller and the like for adjustment, or the wireless communication mode is adopted to be in data exchange with a cloud server so as to further utilize data (such as equipment running state data, environment disinfection data and the like).

Example 3

Referring to fig. 2, the display device 14 is a digital display screen or an LDE lamp, the display device 14 is electrically connected to the main board 5 and can be observed outside the housing, and displays states of an operating mode, operating time, operating intensity, battery information, and the like, and the rest is the same as that of embodiment 1 or embodiment 2. And the display can also be displayed in the mobile terminal equipment through the wireless communication module.

Claims

1. The portable air sterilizing instrument is characterized by comprising a shell, a power supply, an adjusting device, an air sterilizing device, an air duct and a ventilating device, wherein the air sterilizing device is positioned in the air duct in the shell, one end of the air duct is provided with an air inlet, the other end of the air duct is provided with an air outlet, the ventilating device is positioned at one end of the air duct, the air sterilizing device is electrically connected with the adjusting device, the adjusting device is electrically connected with the power supply, and the ventilating device is electrically connected with the power supply and/or the adjusting device.

2. The portable air sterilizer of claim 1, wherein the power source is an ac power source or a dc power source.

3. The portable air sterilizer of claim 2, wherein the dc power source is a rechargeable battery or a dry cell battery.

4. The portable air sterilizer of claim 3, wherein the rechargeable battery is a lithium ion battery.

5. The portable air sterilizer of claim 1, wherein the air sterilizer is a cold plasma air sterilizer, the high pressure end of the cold plasma air sterilizer is located at one side of the air inlet of the air duct, and the low pressure end of the cold plasma air sterilizer is located at one side of the air outlet of the air duct.

6. The portable air sterilizer of claim 1, wherein the regulating means comprises a microprocessor control module, a power management module, a power voltage conversion module, and a status/mode switching module; the microprocessor control module contains an air disinfection device adjusting module and a ventilation device adjusting module.

7. The portable air sterilizer of claim 6, wherein the air sterilizer adjusting module comprises a cold plasma generation intensity adjusting module, a working mode adjusting module; the ventilation device adjusting module is matched with the air disinfection device adjusting module or is arranged independently.

8. The portable air sterilizer of claim 7, wherein the adjustment device further comprises a wireless communication module.

9. The portable air sterilizer of claim 1, wherein the adjusting device comprises a main board, a high-pressure plate, and an adjusting button, the main board is electrically connected with the power supply, the high-pressure plate is electrically connected with the main board and the cold plasma air sterilizer, and the adjusting button is electrically connected with the main board through a key plate; the adjusting button comprises a switch button, an intensity adjusting button and a working mode button.

10. The portable air sterilizer of claim 9, wherein the main board is provided with a wireless communication module for adjusting with the intelligent mobile terminal in a wireless communication manner or exchanging data with the cloud server in a wireless communication manner.

11. The portable air sterilizer of claim 1 wherein the ventilation means is a fan.

12. The portable air sterilizer of claim 1, further comprising a display device, wherein the display device is a digital display screen and/or an LED lamp.