[0025] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0026] like figure 1 shown, where figure 1 The left side of is the external environment, figure 1 The right side is the position of the human face when wearing it. A plasma-based two-way breathing purification device. When wearing, one side of the device is placed in the external environment, and the other side is attached to the face of the human body. The structure of the device is a second filter device-first filter device- Plasma generation module - first filter device - second filter device. It should be noted that, since it is necessary to kill the viruses in the external ambient air and the exhaled air of the human body, the plasma generation module 1 is a bidirectional gas inlet and outlet structure, and the plasma generation module 1 generates plasma through internal corona discharge, It can inactivate the virus microorganisms in the air flow of the external environment and the air exhaled by the human body,
[0027] In an embodiment of the present invention, when the air in the external environment contains viruses, the air inhaled by the user is first filtered by the outermost second filter device 3 to filter out the particulate dust and suspended matter contained in the air, and then the air inhaled by the user is filtered by the outermost second filter device 3 The first filter device 2 filters out microorganisms with smaller diameters than particles of dust and suspended matter particles, but because the virus is too small, the first filter device 2 cannot perform adsorption and filtration, and the airflow containing the virus passes through the Plasma generation module 1, because the plasma contains a large number of active ions and high-energy free radicals, it is very easy to chemically react with proteins and nucleic acids in bacteria and viruses, which can destroy the survival function of microorganisms and viruses and make them die. The effect of inactivating the virus. Since there are some harmful gases in the airflow passing through the plasma generating module 1, the first filter device 2 is required to absorb the harmful gases, so as to prevent the human body from inhaling harmful gases, and then pass the The second filter device 3 ensures that there are no viruses and harmful gases in the air inhaled by the human body.
[0028] In another embodiment of the present invention, if the user suffers from infectious diseases such as new coronary pneumonia, the exhaled gas may spread the virus to the air of the external environment, causing the surrounding people to be infected. The device of the present invention At the same time, it can purify the gas exhaled by the patient. When the patient exhales the airflow containing the virus, the second filter device 3 and the first filter device 2 first filter out bacteria and harmful gases with larger particle diameters, and then the plasma in the plasma generation module 1 The virus is completely killed, and then filtered by the first filter device 2 and the second filter device 3, so that the gas exhaled into the environment is a safe and virus-free gas, which ensures the health and safety of the surrounding people.
[0029] Further description, the plasma generation module 1 includes a current limiting resistor 11, a power source 12, a needle electrode 13 and a mesh electrode 14; the needle electrode 13 is connected to the current limiting resistor 11 in series with the The negative electrode of the power supply 12; the needle-shaped electrode 13 is used to discharge with the mesh electrode 14 under the drive of the power supply 12, and generate plasma; the current limiting resistor 11 is used to control the needle-shaped electrode 14; a plurality of the current limiting resistors 11 are suspended in the plasma generating module 1; the mesh electrode 14 is connected to the positive electrode of the power supply 12, and the mesh electrode 14 is arranged in The plasma generating module 1 is located on the side that is attached to the face of the human body. like figure 1 As shown, in another embodiment of the present invention, one end of the current-limiting resistor 11 is connected to the needle-shaped electrode 13. Since the needle-shaped electrode and the current-limiting resistor have the advantages of small size and light weight, the The device is lighter and easier to carry and use. The mesh electrode 14 connected to the positive pole of the power source has the characteristics of being light and thin, and has the same effect as above. At the same time, the mesh electrode 14 is arranged on the side of the plasma generation module 1 close to the human body, which can effectively shield current and electromagnetic radiation and ensure safe use. The current limiting resistor 11 is installed in the plasma generation module. 1 is distributed in an array and not in contact with the plasma generating module 1, so that the entire circuit is independently suspended in the plasma generating module 1, which ensures the safety of use.
[0030] For further explanation, the power supply 13 is a DC power supply.
[0031] For further explanation, the DC power source is a rechargeable battery. It should be noted that, in order to make the device portable and miniaturized, a small-sized rechargeable battery is used as the DC high-voltage power supply, and at the same time, it can be used repeatedly by charging.
[0032] To further illustrate, the first filter device 2 is also used for absorbing the oxygen and nitrogen in the plasma generating module 1 and the external ambient airflow to react to generate ozone and nitrogen oxides. The first filter device 2 is also used for absorbing the plasma generating module 1 and the oxygen and nitrogen in the exhaled airflow of the human body to generate ozone and nitrogen oxides. It should be noted that, in another embodiment of the present invention, since the outside air is mainly composed of 78% nitrogen and 21% oxygen, nitrogen and oxygen passing through the plasma generating module 1 will interact with the plasma generating module 1. The reaction generates ozone and nitrogen oxides. Such gases are harmful to the human body. Setting the first filter device 2 can better absorb such harmful gases and avoid human inhalation. In another embodiment of the present invention, since the main components of the gas exhaled by the human body are 78% nitrogen and 16% oxygen, nitrogen and oxygen will react with the plasma generating module 1 to generate through the plasma generating module 1 Ozone and nitrogen oxides, such gases are harmful to the human body, in order to prevent such harmful gases from flowing into the external environment, the first filter device 2 is provided to better absorb such harmful gases and avoid people in the external environment from inhaling.
[0033] To further illustrate, the filtering material in the first filtering device 2 is activated carbon, and the activated carbon has good adsorption properties and can be regenerated and recycled. It should be noted that the filtering material in the first filtering device 2 in the present invention is not limited to activated carbon, and other filtering materials that meet the requirements may also be used.
[0034] To further illustrate, the second filter device 3 is a HEPA high-efficiency air filter. The HEPA high-efficiency air filter not only has good filtration performance, but also has moderate hardness, which will not cause discomfort when worn on the human face for a long time. It should be noted that the first filtering device 2 in the present invention is not limited to activated carbon, and other filtering materials that meet the requirements may also be used.
[0035] Those skilled in the art can easily understand that the above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention, etc., All should be included within the protection scope of the present invention.
