TWI769742B - Air filter apparatus - Google Patents

Abstract

An air filter apparatus is provided, including a plurality of metal nets. The plurality of metal nets are spaced at intervals along a filter path. The plurality of metal nets are respectively connected with high-voltage power sources and formed high-voltage electric fields. The high-voltage electric fields of two adjacent metal nets are oppositely charged electron. Wherein, electronic signal characteristic of at least one of the metal net is time-variant. The at least one of metal net creates a time-variant high-voltage electric field.

Description

air filter

The present invention relates to an air filter device.

Most organisms in the world need oxygen in the air to survive, but there are often other substances in the air, such as: droplets, dust, pollen, haze, bacteria, viruses, etc. Various pollutants, when such pollutants enter with breathing Once in the body, it often leads to respiratory or cardiopulmonary related diseases, such as influenza, whooping cough, pneumonia and so on. Based on the above reasons, in recent years, more and more places will install air filters for air filtration, in order to screen and kill the suspended particles and germs in the air to achieve the purpose of purifying the air.

Most of the air filtration methods on the market today use physical filtration to intercept suspended particles through the tiny pore size of the HEPA filter. However, the HEPA filter structure has no effective interception effect on viruses, bacteria and odors. The use of carbon filter, bactericidal factor, and formaldehyde filter leads to the disadvantages of large assembly components of the filter device, complex structure, and high cost of replacement.

Therefore, it is necessary to provide a novel and progressive air filter device to solve the above problems.

The main purpose of the present invention is to provide an air filter device, by adopting the time-varying mode of the telecommunication characteristics of the metal mesh to continuously change with time, so that the metal mesh can generate a time-varying high-voltage electric field, thereby avoiding tip discharge and reducing ozone generation. . In addition, when two adjacent metal meshes can generate a time-varying high-voltage electric field, the suspended particles can be effectively retained and agglomerated to facilitate collection through the cooperation of different modes, and the shells of bacteria and viruses can be destroyed by the ionization of the time-varying high-voltage electric field. And then destroy the nucleus to achieve the purpose of disinfection.

In order to achieve the above object, the present invention provides an air filter device, comprising: a plurality of metal meshes. The plurality of metal meshes are arranged at intervals along a filtering path, the plurality of metal meshes are respectively connected to high-voltage power sources to generate high-voltage electric fields respectively, and the electrical properties of the high-voltage electric fields of any two adjacent metal meshes are opposite; wherein, the telecommunication characteristics of at least one of the metal meshes are opposite to each other. The reference level of the fixed value continuously changes with time, and then the at least one metal mesh generates a time-varying high-voltage electric field.

The following examples are only used to illustrate possible implementations of the present invention, but are not intended to limit the scope of protection of the present invention, and are described together first.

Please refer to FIG. 1 to FIG. 5 , which show a first embodiment of the present invention. The air filter device 1 of the present invention includes a plurality of metal meshes 2 . The plurality of metal meshes 2 are arranged at intervals along a filtering path 6. The plurality of metal meshes 2 are respectively connected to high-voltage power sources to generate high-voltage electric fields respectively. The electrical properties of the high-voltage electric fields of any two adjacent metal meshes 2 are opposite, for example, one of them is a positive high voltage The electric field, and the other is a negative high-voltage electric field; wherein, the telecommunication characteristics of at least one of the metal meshes 2 are continuously changing with time relative to a constant reference level, and then the at least one metal mesh 2 generates a time-varying high-voltage electric field 5.

The telecommunication feature is selected from at least one of voltage and duty cycle. Specifically, when the telecommunication feature selects voltage as a time-varying parameter, the voltage of at least one of the adjacent two metal meshes 2 is a waveform, such as a square Wave, triangle wave, trapezoidal wave, etc., through the change of voltage value, the accumulation of high voltage over time can greatly reduce the occurrence of corona discharge, thereby avoiding the generation of ozone.

More specifically, as shown in FIG. 3 to FIG. 5 , the voltages of the two adjacent metal meshes 2 are both waveforms and have a phase difference, and the time-varying high-voltage electric fields 5 of the two metal meshes 2 overlap each other, and the two metal meshes The range of the high-voltage electric field of The opposite-sex electricity is continuously attracted by the two metal meshes 2 , and is then restricted to move only between the two metal meshes 2 . In addition, when the germs are continuously pulled and ionized in the high-voltage electric field, the outer shell of the germs will be gradually destroyed, and the inner cell nucleus will be damaged and die, so as to achieve the purpose of sterilization and disinfection. In the first embodiment, the voltages of all the plurality of metal meshes 2 are waveforms in order to maximize the performance.

Of course, it is not limited to the above, and can also be shown in the second embodiment of FIG. 6 , which is different from the first embodiment in that the telecommunication feature selects the duty cycle as a time-varying parameter, and the adjacent two metal meshes 2. The duty cycle of at least one of them varies with time, and the effect of the first embodiment is achieved by changing the cycle frequency.

Please refer to the first embodiment of FIG. 1 to FIG. 5 again, preferably, each of the metal meshes 2 includes a plurality of meshes 21 , and the number of meshes of each of the metal meshes 2 is at least greater than 50 meshes to ensure that each of the metal meshes 2 The mesh 21 has a certain density and can have the effect of physical interception and filtration. Also preferably, at least one of the two opposite sides 22 of each of the metal meshes 2 is covered with a non-conductive filter layer 3, so as to have both insulating and physical interception and filtering effects; Self-nonwoven or meltblown.

It is worth mentioning that the air filter device 1 further includes at least one discharge body 4, and the at least one discharge body 4 is located at the starting end of the filter path 6 and is located outside the plurality of metal meshes 2; wherein, the at least one discharge body 4 is The electrical property of the body 4 is opposite to that of the most adjacent one of the metal meshes 2, and the at least one discharge body 4 is used to charge the surrounding objects, and then the charged objects are affected by the adjacent one of the metal meshes. 2 is attracted and flows into the plurality of metal meshes 2 along the filtering path 6 to achieve the purification purpose of dust collection and filtration.

In this embodiment, the at least one discharge body 4 is columnar, and the at least one discharge body 4 is selected from metal needles, carbon brushes, and semiconductor columns. And, the plurality of metal meshes 2 are sequentially numbered from the beginning of the filtering path 6, wherein the at least one discharge body 4 is electrically connected to the even-numbered metal meshes 2, whereby the at least one discharge The body 4 and the electrically connected metal mesh 2 are connected in series and have the same telecommunication characteristics, which can ensure that the positive and negative electrical configurations of the at least one discharge body 4 and the first sheet of the plurality of metal meshes 2 are correct, and no additional Disposing a power source to the at least one discharge body 4 can effectively simplify the overall structure.

1: Air filter device 2: Metal mesh 21: Mesh 22: Side 3: filter layer 4: Discharger 5: Time-varying high-voltage electric field 6: Filter Path

FIG. 1 is a perspective view of a first embodiment of the present invention. FIG. 2 is an interior side view of FIG. 1 . FIG. 3 is a schematic top view configuration diagram of the inner metal mesh and the discharge body of FIG. 1 . FIG. 4 is a schematic diagram of the use state of the second metal mesh according to the first embodiment of the present invention. FIG. 5 is a voltage-time diagram of the first embodiment of the present invention. FIG. 6 is a voltage-time diagram of the second embodiment of the present invention.

1: Air filter device

21: Mesh

4: Discharger

Claims (10)

An air filter device, comprising: A plurality of metal meshes, arranged at intervals along a filtering path, are respectively connected to high-voltage power sources to generate high-voltage electric fields respectively, and the electric properties of the high-voltage electric fields of any two adjacent metal meshes are opposite; Wherein, the telecommunication characteristic of at least one of the metal meshes continuously changes with time relative to a fixed reference level, and then the at least one metal mesh generates a time-varying high-voltage electric field. The air filtration device of claim 1, wherein the telecommunication characteristic is selected from at least one of voltage and duty cycle. The air filter device of claim 2, wherein when the telecommunication feature selects the voltage as a time-varying parameter, wherein the voltage of at least one of the two adjacent metal meshes is a waveform. The air filter device of claim 3, wherein the voltages of the two adjacent metal meshes are both waveforms and have a phase difference, and the time-varying high-voltage electric fields of the two metal meshes overlap each other. The air filter device of claim 2, wherein the telecommunication feature selects the duty cycle as a time-varying parameter, and the duty cycle of at least one of the two adjacent metal meshes varies with time. The air filter device of claim 1, wherein each of the metal meshes includes a plurality of meshes, and the mesh number of each of the metal meshes is at least greater than 50 meshes. The air filter device according to claim 1, wherein at least one of the two opposite sides of each of the metal meshes is covered with a non-conductive filter layer. The air filter device according to any one of claims 1 to 7, further comprising at least one discharge body, the at least one discharge body is located at the beginning of the filter path and outside the plurality of metal meshes; wherein the at least one discharge body is located The electrical property of a discharge body is opposite to that of the adjacent one of the metal meshes, the at least one discharge body is used to charge the surrounding objects, and then the charged objects are attracted by the adjacent one of the metal meshes And flow into the plurality of metal meshes along the filter path. The air filter device according to claim 8, wherein the plurality of metal meshes are sequentially numbered from the beginning of the filter path, wherein the at least one discharge system is electrically connected to the even-numbered metal mesh, and the at least one discharge system is electrically connected to the even-numbered metal meshes. A discharge body has the same telecommunication characteristics as the electrically connected metal mesh. The air filter device according to claim 4, wherein each of the metal meshes includes a plurality of meshes, and the mesh number of each of the metal meshes is at least greater than 50 meshes; at least one of the two opposite sides of each of the metal meshes is covered with a non-woven mesh A conductive filter layer; at least one discharge body is located at the starting end of the filter path and outside the plurality of metal meshes; wherein, the electrical property of the at least one discharge body is opposite to that of the most adjacent one of the metal meshes, The at least one discharge is used to charge the surrounding objects, and then the charged objects are attracted by the adjacent one of the metal meshes and flow along the filtering path; the voltages of all the plurality of metal meshes are waveforms; the at least one A discharge body is cylindrical; the at least one discharge body is selected from metal needles, carbon brushes, and semiconductor columns; the filter layer is selected from non-woven fabrics or melt-blown fabrics.

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