CN115773557A - Attached air purifier - Google Patents

Attached air purifier Download PDF

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Publication number
CN115773557A
CN115773557A CN202111227504.3A CN202111227504A CN115773557A CN 115773557 A CN115773557 A CN 115773557A CN 202111227504 A CN202111227504 A CN 202111227504A CN 115773557 A CN115773557 A CN 115773557A
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China
Prior art keywords
air
pulse
voltage
generating
microcontroller
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CN202111227504.3A
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Chinese (zh)
Inventor
金又庆
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Gwellkorea Co ltd
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Gwellkorea Co ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/30—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by ionisation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/88—Electrical aspects, e.g. circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20—Casings or covers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T23/00—Apparatus for generating ions to be introduced into non-enclosed gases, e.g. into the atmosphere
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/06—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider
    • H02M3/07—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20—Casings or covers
    • F24F2013/205—Mounting a ventilator fan therein
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Abstract

The invention provides an air purifier for sterilization and dust collection, which is an air purifier with an internal air purifying filter.A polymer synthetic resin film is charged to form a plurality of bulges and then is rolled into a barrel shape, so that an air passage parallel to the flow of air is formed in the air purifying filter, and the air purifier is also internally provided with an ion generator for generating ions for sterilization through high voltage and a fan for enabling the ions generated by the ion generator to flow to the air purifying filter.

Description

Attached air purifier
Technical Field
The present invention relates to an air cleaner, and more particularly, to an air cleaner having not only a sterilization function but also a dust collection function, and particularly, having an improved dust collection function for fine dust.
Background
The air cleaner refers to a device for filtering dust, bacteria, etc. in air to purify the air, and is classified into a wet type air cleaner, an electrostatic type air cleaner, and a filter type air cleaner according to a dust collection manner.
Recently, in order to enhance the sterilization function of the air purifier, a UV light illuminator (korean application laid-open No. 2018-79960) or a plasma sterilizer (korean application laid-open No. 2020-64671) is added to the interior of the air purifier. The sterilization apparatus of this type has a problem in that it is expensive and occupies a relatively large space, increasing the manufacturing cost and size of the air purifier.
On the other hand, as the impact of the dust particles on health becomes well known, there is a need for an air purifier that can effectively remove the dust particles.
Disclosure of Invention
The invention aims to provide an air purifier which occupies relatively small space at low cost and has the functions of sterilization and dust collection.
Another object of the present invention is to provide an air cleaner having sterilization and dust collection functions and further enhanced dust collection function.
In order to achieve the above object, the present invention provides an air cleaner with an air cleaning filter, which is configured such that a polymeric synthetic resin film is charged to form a plurality of protrusions, and then the film is wound in a cylindrical shape to form an air passage parallel to the flow of air in the air cleaning filter, and further includes an ionizer generating sterilizing ions by a high voltage and a fan for causing the ions generated by the ionizer to flow into the air cleaning filter.
According to the present invention, an air purifier providing sterilization and dust collection functions while having a relatively simple structure is provided.
According to the present invention, the dust collecting rate of particles having a particle size of 1 μm or less is increased by at least 10%.
Drawings
Fig. 1 is a perspective view of one embodiment of an air purifier according to the present invention.
Fig. 2 is an exploded perspective view of the air purifier shown in fig. 1.
Fig. 3 is a perspective view illustrating attachment of the air cleaner shown in fig. 1.
Fig. 4 is one embodiment of a circuit configuration diagram of an ionizer built in the air purifier of the present invention.
Fig. 5 is another embodiment of a circuit configuration diagram of an ionizer built in the air purifier of the present invention.
Fig. 6 is a graph illustrating a test method for measuring dust collecting efficiency of an air cleaner having a structure according to the present invention.
Fig. 7 is a graph illustrating various experiments performed according to the method illustrated in fig. 6.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As disclosed in granted patent nos. 481289, the present inventors manufactured and sold an air cleaner incorporating an air cleaning filter by charging a polymer synthetic resin film to form a plurality of protrusions, and then winding the film into a cylindrical shape to form an air passage parallel to the flow of air in the air cleaning filter, and then developed and issued a high voltage generator for an ionizer that can be used to generate ions for sterilization (granted patent nos. 1616231 and 1744903). The ionizer using a high voltage generating device disclosed in granted patent No. 1616231 has the following structure, including: a microcontroller for generating an oscillation frequency having a certain period by using a supplied DC power; a pulse generating unit for generating a high-voltage pulse by using the oscillation frequency outputted from the microcontroller; a transformer for boosting the pulse output from the pulse generator by a set voltage; an ion generating unit for generating ions through the electrodes by using the voltage boosted by the transformer; and a pulse generation control unit which is added between the microcontroller and the pulse generation unit, and transmits the oscillation frequency outputted from the microcontroller to the pulse generation unit, the pulse generation unit including: an inductor which generates a peak signal of a high voltage from the supplied dc voltage by a control signal of the pulse generation control unit; a capacitor that charges and discharges a high voltage peak signal generated by the inductor; and a thyristor for outputting a charge/discharge signal of the capacitor to the transformer only at a constant voltage, and the inductor generates ions for sterilization by applying a direct current voltage and a control signal of the pulse generation control unit to both ends thereof. Fig. 4 is a circuit diagram of such an ionizer, and the circuit is described in detail in japanese patent No. 1616231, and therefore the description thereof is omitted here.
On the other hand, the ionizer using a high voltage generating device disclosed in the granted patent No. 1744903 has a structure including: a microcontroller for generating an oscillation frequency having a certain period by using a supplied DC power; a pulse generating unit for generating a high-voltage pulse by using the oscillation frequency outputted from the microcontroller; a piezoelectric transformer that boosts the pulse output from the pulse generating unit at a set voltage; an ion generating unit for generating ions through the electrodes by using the voltage boosted by the piezoelectric transformer; and a pulse generation control unit which is added between the microcontroller and the pulse generation unit, and transmits the oscillation frequency outputted from the microcontroller to the pulse generation unit, the pulse generation unit including: an inductor which generates a peak signal of a high voltage from a supplied voltage by a control signal of the pulse generation control unit; and a capacitor which charges and discharges a high voltage peak signal generated by the inductor and outputs the high voltage peak signal to the piezoelectric transformer, wherein the inductor generates ions for sterilization by receiving a supply voltage and a control signal of the pulse generation control unit at both ends thereof. The present inventors have also issued a patent in the same manner as a small ionizer developed by using the high voltage generator disclosed in the aforementioned granted patent No. 1616231, which is attachable to an air flow discharge portion of an air conditioner for an automobile, an air conditioner for each home, an air cleaner, or the like (granted patent No. 2155591). Fig. 5 is a circuit diagram of such an ionizer, and the circuit is described in detail in japanese patent No. 2155591, and therefore the description thereof is omitted here.
In view of the recent trend of providing an air cleaner capable of collecting dust and sterilizing, the present inventors have also measured the dust collecting efficiency in the case of an air cleaner having a structure disclosed in the above-mentioned granted patent No. 481289 and incorporating an air cleaning filter, and further incorporating the above-mentioned ion generator of the present inventors, and have found in experiments that the collection rate of fine dusts in the air is remarkably improved by such a combination, and have arrived at the present invention.
The following is a description of a test for measuring the dust collecting efficiency of a combined structure of a conventional air cleaning filter and an ionizer developed by the present inventor.
Referring to fig. 6, the air cleaning filter (electrostatic filter) as described above was located at the center of a test tube (inner diameter 140mm, length 250 mm) of a certain size, one side of which was an open air suction opening and the other side was an open center air passage, and the ion generator developed by the present inventor was located at one side of the air cleaning filter, i.e., the air suction opening direction, such that the fan was located at the other side of the air cleaning filter, i.e., the center air passage direction, and by connecting both to the same power source, the fan was operated while the ion generator was operated, thereby measuring the dust collecting efficiency. Particle measurement for dust collection efficiency a Particle meter (MET ONE air Particle Counter) sold as model HHPC6+ by Beckman Coulter, inc. The particle measuring instrument measures the number of particles having a size of 0.3 μm, 0.5 μm, 1.0 μm, 2.0 μm, 5.0 μm and 10.0 μm in the air flowing through the upper suction port, and displays the result on a screen. As shown in the upper end of fig. 7, the experiment was performed in the case where there was no ionizer and only the air cleaning filter, the number of atmospheric particulates was measured by the particle measuring instrument, and then the power was applied to operate the fan for 20 seconds while measuring the number of atmospheric particulates passing through the air cleaning filter. Then, as shown in the lower end of fig. 7, in the case where the ion generator is provided at the same time, the number of particles in the atmosphere is measured by the particle meter, and then the power is applied to operate the fan for 20 seconds while measuring the number of particles in the atmosphere passing through the air cleaning filter. These tests were carried out under the same conditions (temperature and humidity).
Tables 1 and 2 below show the results of measurements carried out in the laboratory at a temperature of 27 ℃ and a humidity of 70% by the method described above on the same day and at the same location. The particle sizes measured by the particle measuring instrument were 0.3 μm, 0.5 μm, 1.0 μm, 2.0 μm, 5.0 μm and 10.0 μm, but the amounts of particles having sizes of 5.0 μm and 10.0 μm (the number of particles) which are relatively large were as small as almost negligible as compared with the amounts of particles smaller than them, and thus the description of the measured values thereof was omitted. Table 1 shows the number of particles and the particle removal rate before and after the fan was operated in the case of only the air cleaning filter, and table 2 shows the number of particles and the particle removal rate before and after the fan was operated in the state in which the ionizer was simultaneously provided. The results of 15 measurement tests of both, the total amount of the measured particles and the average level thereof were calculated and recorded, and the particle removal rate (%) before and after the fan operation was also calculated based on these values.
TABLE 1
Figure BDA0003314689030000041
TABLE 2
Figure BDA0003314689030000042
Referring to table 1, in the case of only the air cleaning filter, particles in the range of 78.3% to 88.4% were removed on average for the particle size of 0.3 μm to 2.0 μm, but the smaller the particles, the lower the removal rate, in the case of 0.3 μm, 78.3% was removed by the filter, in the case of 2.0 μm, 88.4% was removed by the filter, and the deviation was found to exceed 10% by measurement. On the other hand, referring to table 2, in the case of the simultaneous provision of the ionizer, particles having a particle size of 0.3 μm to 2.0 μm were removed in the range of 94.0% to 96.6% on average, and the smaller the particles still, the lower the removal rate, but in the case of 0.3 μm, 94.0% was removed by the filter, and in the case of 2.0 μm, 96.6% was removed by the filter, and the deviation was found to be 3% or less by measurement. Table 3 below shows the increase and decrease rate (%) of the average particle removal rate according to the particle size obtained by the presence or absence of the ionizer (difference between the average value of the particle removal rates before operation in table 1 and the average value of the particle removal rates before operation in table 2), and it is known that the particle removal rate can be improved for all particle sizes in the state in which the ionizer is present. It is found that the particle removal rate increases as the particles become smaller, and in particular, the particle removal rate (collection rate) of fine dust having a particle size of 1 μm or less is improved by at least 10%.
As a result of the above, similar results were obtained whether the ionizer using the high voltage generating device disclosed in the issued patent No. 1744903 or the ionizer using the high voltage generating device disclosed in the issued patent No. 1616231 was used.
TABLE 3
Figure BDA0003314689030000051
Based on the above experimental results, the present inventors have invented an air cleaner for sterilization and dust collection, in which a polymer synthetic resin film is charged to form a plurality of protrusions, and then the film is wound into a cylindrical shape to form an air passage parallel to the flow of air in an air cleaning filter, and an ionizer that generates ions for sterilization by a high voltage and a fan that causes the ions generated by the ionizer to flow to the air cleaning filter are additionally installed in the air cleaner having the air cleaning filter installed therein, thereby increasing the collection rate of fine dust in the air.
Fig. 1 is a perspective view of an embodiment of an air purifier according to the present invention, and fig. 2 is an exploded perspective view of the air purifier.
The air cleaner 1 according to the present invention includes a first cover 10 and a second cover 60, and a fan 20, an ionizer 40, and a filter unit 50 having an air cleaning filter are built in the interior thereof. The respective components will be described below.
The first cover 10 has the same shape as a dish, and is formed with vent holes 11 along its peripheral portion and a fan mounting portion 13 at its central portion. An attachment projection 15 is formed on the outside of the first cover 10. As shown in the drawing, the second cover 60 is formed with a power switch 65, an operation portion 63 where a timer and the like are located, and a plurality of vent holes 61, and a side opening portion 63 is formed on a side surface thereof. The coupling of the first cover 10 and the second cover 60 is formed by means of the bonding portion (not shown) inside the second cover 60 extended by the groove portion 37 of the middle cover 30 and the groove portion 17 of the first cover 10.
When the first cover 10 and the second cover 60 are coupled as described above, the fan 20 located at the fan mounting portion 13 of the first cover 10 is fixed to the fan mounting portion 13 via the intermediate cover 30. The intermediate cover 30 has a disk shape, and a mounting groove 31 for mounting an ion generator 40 described later is formed at a central portion thereof, and a circuit board bonding portion 33 is formed on an outer side of the disk. The circuit board 35 is connected to an electric wire for supplying power to the fan 20 and the ionizer 40 described later, and plays a role of controlling the operation of the fan 20 and the ionizer 40, and the connecting electric wire is omitted for convenience of understanding. The structure and operation of the circuit board 35 are well known in the related art, and thus a detailed description thereof is omitted. The circuit board 35 operates by simply touching the power switch 65 located on the second cover 60.
As described above, the ionizer 40, as an ionizer invented by the present inventor and having a structure of a granted patent, generates ions of positive ions and negative ions at the ion generation front end portion 41 located at the end of the connecting line extended from the ion generation portion of the ionizer 40. The connecting wire is composed of a metal fiber including a metal wire in a thin and long wire shape, and is generally commercially available. The generated ions are known to have a sterilizing or deodorizing function, and as ascertained through the aforementioned tests, serve to increase the rate of fine dust capture of the air cleaning filter.
As shown in the drawing, the filter portion 50 has a four-cornered plate shape, one side of which is formed in a curved form as a curved surface 51. The filter unit 50 has an air cleaning filter built therein, and a polymeric synthetic resin film is charged with electricity to form a plurality of protrusions, and then the film is wound into a cylindrical shape, thereby forming an air passage parallel to the flow of air in the air cleaning filter. The curved surface 51 of the filter unit is located at the side opening 63 of the second cover 60, and as shown in fig. 1, the filter unit 50 is exposed to the outside of the air cleaner 1, so that a user can clean or replace the filter unit as needed. The ion generating front end 41 of the ion generator 40 extends to pass through the side surface 43 of the filter unit 50, and is located in a space between the second cover 60 and the filter unit 50.
In the air cleaner 1 of the present invention having the above-described structure, when the power switch 65 provided in the second cover 60 is touched, the fan 20 and the ionizer 40 are simultaneously operated by the circuit board 35, and the ions generated at the ion generation front end portion 41 of the ionizer 40 flow to the ventilation hole 11 of the first cover 10 through the ventilation hole 61 of the second cover 60 by the fan 20, and flow to the air cleaning filter incorporated in the filter unit 50 by the air flow.
Referring to fig. 3, the air cleaner 1 according to the present invention is fixed to a fixing surface by bonding the attachment protrusion 15 formed on the outer surface of the first cover 10 to the bonding portion 71 of the bracket 70 attached to the fixing surface such as the top 80 by means of the screw 73.
Although the present invention has been described with reference to the accompanying drawings, various modifications may be made within the scope of the claims if those skilled in the art to which the invention pertains.

Claims (7)

1. An air cleaner with air cleaning filter is composed of a high-molecular synthetic resin film with multiple bosses and coiled up into drum shape to form air channel parallel to air flow in air cleaning filter,
the air purifier is also internally provided with an ion generator which generates ions for sterilization through high voltage and a fan which is used for enabling the ions generated by the ion generator to flow to the air purifying filter, thereby improving the collection rate of the micro-dust in the air.
2. The air purifier of claim 1,
the smaller the particles, the higher the trapping rate.
3. The air purifier of claim 2,
the collection rate of the fine dust having particles of 1 μm or less is improved by at least 10%.
4. The air cleaner of claim 1, wherein the ionizer comprises:
a microcontroller for generating an oscillation frequency having a certain period by using a supplied DC power; a pulse generating unit for generating a high-voltage pulse by using the oscillation frequency outputted from the microcontroller; a transformer for boosting the pulse output from the pulse generating unit with a set voltage; an ion generating unit for generating ions through the electrodes by using the voltage boosted by the transformer; and a pulse generation control part which is added between the microcontroller and the pulse generation part and transmits the oscillation frequency output by the microcontroller to the pulse generation part,
the pulse generating section includes: an inductor which generates a peak signal of a high voltage from the supplied dc voltage by a control signal of the pulse generation control unit; a capacitor that charges and discharges a high voltage peak signal generated by the inductor; a thyristor for outputting charge and discharge signals of the capacitor to the transformer only under the condition of a certain voltage,
the inductor generates ions for sterilization by applying a direct-current voltage and a control signal of the pulse generation control unit to both ends thereof.
5. The air cleaner of claim 1, wherein the ionizer comprises:
a microcontroller for generating an oscillation frequency having a certain period by using a supplied direct current power supply; a pulse generating unit for generating a high-voltage pulse by using the oscillation frequency outputted from the microcontroller; a piezoelectric transformer that boosts the pulse output from the pulse generating unit at a set voltage; an ion generating unit for generating ions through the electrodes by using the voltage boosted by the piezoelectric transformer; and a pulse generation control part which is added between the microcontroller and the pulse generation part and transmits the oscillation frequency output by the microcontroller to the pulse generation part,
the pulse generating section includes: an inductor which generates a peak signal of a high voltage from a supplied voltage by a control signal of the pulse generation control unit; a capacitor which charges and discharges the high voltage peak signal generated by the inductor and outputs the high voltage peak signal to the piezoelectric transformer,
the inductor generates ions for sterilization by applying a supply voltage and a control signal of the pulse generation control unit to both ends.
6. The air purifier of claim 1, wherein the air purifier comprises:
a first lid having a vent hole; a fan located inside the first cover; an intermediate cover having a mounting groove for mounting the ion generator, functioning to fix the fan in the first cover; an ion generator positioned in the mounting groove and having an ion generation front end portion for generating ions for sterilization; a second cap having a vent hole and combined with the first cap; and a filter unit having an air cleaning filter therein and disposed between the ionizer and the second cover, wherein the polymer synthetic resin film is charged to form a plurality of protrusions, and then the film is rolled into a cylindrical shape, thereby forming an air passage parallel to the flow of air.
7. The air purifier of claim 6,
the ion generating front end portion of the ion generator is extended so as to pass through the side surface of the filter portion.
CN202111227504.3A 2021-09-07 2021-10-21 Attached air purifier Pending CN115773557A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2021-0118954 2021-09-07
KR1020210118954A KR20230036279A (en) 2021-09-07 2021-09-07 Air Cleaner

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CN115773557A true CN115773557A (en) 2023-03-10

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