The present disclosure relates to an air purification device, and more particularly to a device adapted to filter an air for performing the functions of gas detection and purifying harmful gases in an activity space.
In recent years, people pay more and more attention to the air quality around our daily lives. Particulate matter (PM), such as PM1, PM2.5, PM10, and gases, such as carbon dioxide, total volatile organic compounds (TVOC), formaldehyde etc., are all exposed in the environment and might affect the human health, and even endanger people's lives seriously. It is worth noting that the air quality in the activity space has gradually attracted people's attention. Therefore, providing an air purification device capable of purifying and improving the air quality to prevent from breathing harmful gases in the activity space through filtering the air in the activity space in real time and purifying the air in the activity space quickly when the air quality is poor, so as to improve the efficiency for purifying the air is an issue of concern developed in the present disclosure.
The present disclosure provides an air purification device for filtering and purifying suspended particles (such as particulate matter, PM2.5) and volatile organic compounds (such as VOCs) contained in the air through a purification filter disposed therein, so as to generate a purified gas after the filtration and purification of the air.
The major object of the present disclosure is to provide an air purification device including a device main body, a purification filter and a gas detection module. The device main body includes at least one gas-inlet opening and at least one gas-outlet opening. The purification filter is disposed in the device main body and includes at least one activated carbon layer and at least one zeolite layer stacked on each other. The activated carbon layer filters and absorbs suspended particles contained in an air introduced into the device main body through the gas-inlet opening, and the zeolite layer includes porous structures with hydrophobic property for controlling and absorbing volatile organic compounds contained in the air introduced into the device main body through the gas-inlet opening, thereby a purified gas is generated from the introduced air and is discharged through the gas-outlet opening. The gas detection module is disposed in the device main body for detecting and obtaining a gas quality data of the air passing through the gas-inlet opening and outputting the gas quality data.
The above contents of the present disclosure will become more readily apparent to those ordinarily skilled in the art after reviewing the following detailed description and accompanying drawings, in which:
The present disclosure will now be described more specifically with reference to the following embodiments. It is to be noted that the following descriptions of preferred embodiments of this disclosure are presented herein for purpose of illustration and description only. It is not intended to be exhaustive or to be limited to the precise form disclosed.
Please refer to
The device main body 1 mentioned above includes at least one gas-inlet opening 1a and at least one gas-outlet opening 1b.
The purification filter 2 mentioned above is disposed in the device main body 1 and includes at least one activated carbon layer 21a and at least one zeolite layer 21b. The activated carbon layer 21a filters and absorbs suspended particles (such as particulate matter, PM2.5) contained in the air introduced into the device main body 1 through the gas-inlet opening 1a. The zeolite layer 21b includes porous structures with hydrophobic property for controlling and absorbing volatile organic compounds (such as VOCs) contained in the air introduced into the device main body 1 through the gas-inlet opening 1a. Consequently, a purified gas is generated from the introduced-in air.
In some embodiments, the purification filter 2 includes one single activated carbon layer 21a and a plurality of zeolite layers 21b stacked on each other for improving the efficiency of absorption and purification of the suspended particles (particulate matter, PM2.5) and the volatile organic compounds (VOCs) contained in the air. In some other embodiments, the purification filter 2 includes a plurality of activated carbon layers 21a and one single zeolite layer 21b stacked on each other for improving the efficiency of absorption and purification of the suspended particles (particulate matter, PM2.5) and the volatile organic compounds (VOCs) contained in the air. In some other embodiments, the purification filter 2 includes a plurality of activated carbon layers 21a and a plurality of plurality of zeolite layers 21b stacked on each other for improving the efficiency of absorption and purification of the suspended particles (particulate matter, PM2.5) and the volatile organic compounds (VOCs) contained in the air.
The gas guider 4 mentioned above is disposed in the device main body 1 adjacent to the gas-outlet opening 1b. The gas guider 4 introduces the air to enter the device main body 1 and pass through the purification filter 2, so as to filter and purify the air and generate the purified gas. Furthermore, the purified gas introduced by the gas guider 4 is discharged through the gas-outlet opening 1b.
The gas detection module 3 mentioned above is disposed in the device main body 1 adjacent to the gas-inlet opening 1a. The gas detection module 3 detects and obtains gas quality data and outputs the gas quality data to the gas guider 4. Based on the gas quality data, the gas guider 4 intelligently determines whether it is to be enabled or disabled to guide the air for filtration and purification.
Please refer to
Furthermore, please refer to
In the embodiment, the gas-guiding-component loading region 3215 is concavely formed from the second surface 3212 and in communication with the gas-inlet groove 3214. A ventilation hole 3215a penetrates a bottom surface of the gas-guiding-component loading region 3215, and four positioning protrusions 3215b are disposed at four corners of the gas-guiding-component loading region 3215, respectively. In the embodiment, the gas-outlet groove 3216 includes a gas-outlet 3216a, and the gas-outlet 3216a is spatially corresponding to the outlet opening 3261b of the outer cover 326. The gas-outlet groove 3216 includes a first section 3216b and a second section 3216c. The first section 3216b is concavely formed from a region of the first surface 3211 spatially corresponding to a vertical projection area of the gas-guiding-component loading region 3215. The second section 3216c is hollowed out from the first surface 3211 to the second surface 3212 in a region where the first surface 3211 is misaligned with the vertical projection area of the gas-guiding-component loading region 3215 and extended therefrom. The first section 3216b and the second section 3216c are connected to form a stepped structure. Moreover, the first section 3216b of the gas-outlet groove 3216 is in communication with the ventilation hole 3215a of the gas-guiding-component loading region 3215, and the second section 3216c of the gas-outlet groove 3216 is in communication with the gas-outlet 3216a. In that, when the first surface 3211 of the base 321 is attached and covered by the outer cover 326 and the second surface 3212 of the base 321 is attached and covered by the driving circuit board 323, the gas-outlet groove 3216, the outer cover 326 and the driving circuit board 323 collaboratively define an outlet path.
Furthermore, the laser component 324 and the particulate sensor 325 mentioned above are disposed on the driving circuit board 323 and located within the base 321. In order to clearly describe and illustrate the positions of the laser component 324 and the particulate sensor 325 in the base 321, the driving circuit board 323 is specifically omitted. The laser component 324 is accommodated in the laser loading region 3213 of the base 321, and the particulate sensor 325 is accommodated in the gas-inlet groove 3214 of the base 321 and is aligned to the laser component 324. In addition, the laser component 324 is spatially corresponding to the transparent window 3214b, thereby a light beam emitted by the laser component 324 passes through the transparent window 3214b and irradiates into the gas-inlet groove 3214. Furthermore, the light beam path extends from the laser component 324 and passes through the transparent window 3214b in an orthogonal direction perpendicular to the gas-inlet groove 3214. In the embodiment, a projecting light beam emitted from the laser component 324 passes through the transparent window 3214b and enters the gas-inlet groove 3214 to irradiate the gas in the gas-inlet groove 3214. When the suspended particles contained in the gas are irradiated and generate scattered light spots, the scattered light spots are detected and calculated by the particulate sensor 325 for obtaining the detection data of the gas. Moreover, the gas sensor 327 is positioned and disposed on the driving circuit board 323 and electrically connected to the driving circuit board 323, and accommodated in the gas-outlet groove 3216, for detecting the polluted gas introduced into the gas-outlet groove 3216. In some embodiments, the particulate sensor 325 is a PM2.5 sensor for detecting information of particulate matters. In some embodiments, the gas sensor 327 is a volatile-organic-compound sensor for detecting information of carbon dioxide or total volatile organic compounds. In some other embodiments, the gas sensor 327 is a formaldehyde sensor for detecting information of formaldehydes. In some other embodiments, the gas sensor 327 is a bacteria sensor for detecting information of bacteria or fungi. In some other embodiments, the gas sensor 327 is a virus senor for detecting information of viruses.
The piezoelectric actuator 322 mentioned above is accommodated in the square-shaped gas-guiding-component loading region 3215 of the base 321. In addition, the gas-guiding-component loading region 3215 is in communication with the gas-inlet groove 3214. When the piezoelectric actuator 322 is enabled, the gas in the gas-inlet groove 3214 is inhaled by the piezoelectric actuator 322, so that the gas flows into the piezoelectric actuator 322 and is transported into the gas-outlet groove 3216 through the ventilation hole 3215a of the gas-guiding-component loading region 3215. The driving circuit board 323 mentioned above covers and attaches to the second surface 3212 of the base 321, and the laser component 324 is positioned and disposed on the driving circuit board 323, and is electrically connected to the driving circuit board 323. The particulate sensor 325 also is positioned and disposed on the driving circuit board 323, and is electrically connected to the driving circuit board 323. When the outer cover 326 covers the base 321, the inlet opening 3261a is spatially corresponding to the gas-inlet 3214a of the base 321, and the outlet opening 3261b is spatially corresponding to the gas-outlet 3216a of the base 321.
The piezoelectric actuator 322 mentioned above includes a gas-injection plate 3221, a chamber frame 3222, an actuator element 3223, an insulation frame 3224 and a conductive frame 3225. In the embodiment, the gas-injection plate 3221 is made by a flexible material and includes a suspension plate 3221a and a hollow aperture 3221b. The suspension plate 3221a is a sheet structure and is permitted to undergo a bending deformation. Preferably but not exclusively, the shape and the size of the suspension plate 3221a are corresponding to the inner edge of the gas-guiding-component loading region 3215, but not limited thereto. The hollow aperture 3221b passes through a center of the suspension plate 3221a, so as to allow the gas to flow therethrough. Preferably but not exclusively, the shape of the suspension plate 3221a is selected from the group consisting of a square, a circle, an ellipse, a triangle and a polygon.
The chamber frame 3222 mentioned above is carried and stacked on the gas-injection plate 3221. In addition, the shape of the chamber frame 3222 is corresponding to the gas-injection plate 3221. The actuator element 3223 is carried and stacked on the chamber frame 3222 and collaboratively defines a resonance chamber 3226 with the gas-injection plate 3221 and the suspension plate 3221a. The insulation frame 3224 is carried and stacked on the actuator element 3223 and the appearance of the insulation frame 3224 is similar to that of the chamber frame 3222. The conductive frame 3225 is carried and stacked on the insulation frame 3224, and the appearance of the conductive frame 3225 is similar to that of the insulation frame 3224. In addition, the conductive frame 3225 includes a conducting pin 3225a extended outwardly from an outer edge of the conducting pin 3225a and a conducting electrode 3225b extended inwardly from an inner edge of the conductive frame 3225.
Moreover, the actuator element 3223 further includes a piezoelectric carrying plate 3223a, an adjusting resonance plate 3223b and a piezoelectric plate 3223c. The piezoelectric carrying plate 3223a is carried and stacked on the chamber frame 3222. The adjusting resonance plate 3223b is carried and stacked on the piezoelectric carrying plate 3223a. The piezoelectric plate 3223c is carried and stacked on the adjusting resonance plate 3223b. The adjusting resonance plate 3223b and the piezoelectric plate 3223c are accommodated in the insulation frame 3224. The conducting electrode 3225b of the conductive frame 3225 is electrically connected to the piezoelectric plate 3223c. In the embodiment, the piezoelectric carrying plate 3223a and the adjusting resonance plate 3223b are made by a conductive material. The piezoelectric carrying plate 3223a includes a piezoelectric pin 3223d. The piezoelectric pin 3223d and the conducting pin 3225a are electrically connected to a driving circuit (not shown) of the driving circuit board 323, so as to receive a driving signal (which can be a driving frequency and a driving voltage). Through this structure, a circuit is formed by the piezoelectric pin 3223d, the piezoelectric carrying plate 3223a, the adjusting resonance plate 3223b, the piezoelectric plate 3223c, the conducting electrode 3225b, the conductive frame 3225 and the conducting pin 3225a for transmitting the driving signal. Moreover, the insulation frame 3224 provides insulation between the conductive frame 3225 and the actuator element 3223, so as to avoid the occurrence of a short circuit. Thereby, the driving signal is transmitted to the piezoelectric plate 3223c. After receiving the driving signal, the piezoelectric plate 3223c deforms due to the piezoelectric effect, and the piezoelectric carrying plate 3223a and the adjusting resonance plate 3223b are further driven to bend and vibrate in the reciprocating manner.
The adjusting resonance plate 3223b is located between the piezoelectric plate 3223c and the piezoelectric carrying plate 3223a and served as a cushion between the piezoelectric plate 3223c and the piezoelectric carrying plate 3223a. Thereby, the vibration frequency of the piezoelectric carrying plate 3223a is adjustable. Basically, the thickness of the adjusting resonance plate 3223b is greater than the thickness of the piezoelectric carrying plate 3223a, and the thickness of the adjusting resonance plate 3223b is adjustable to adjust the vibration frequency of the actuator element 3223 accordingly. In the embodiment, the gas-injection plate 3221, the chamber frame 3222, the actuator element 3223, the insulation frame 3224 and the conductive frame 3225 are stacked and positioned in the gas-guiding-component loading region 3215 sequentially, so that the piezoelectric actuator 322 is supported and positioned in the gas-guiding-component loading region 3215. A clearance 3221c is defined by the piezoelectric actuator 322 between the suspension plate 3221a and an inner edge of the gas-guiding-component loading region 3215 for gas flowing therethrough.
A flowing chamber 3227 is formed between the gas-injection plate 3221 and the bottom surface of the gas-guiding-component loading region 3215. The flowing chamber 3227 is in communication with the resonance chamber 3226 located between the actuator element 3223, the gas-injection plate 3221 and the suspension plate 3221a through the hollow aperture 3221b of the gas-injection plate 3221. By controlling the vibration frequency of the gas in the resonance chamber 3226 to be close to the vibration frequency of the suspension plate 3221a, the Helmholtz resonance effect is generated between the resonance chamber 3226 and the suspension plate 3221a, so as to improve the efficiency of gas transportation. When the piezoelectric plate 3223c moves away from the bottom surface of the gas-guiding-component loading region 3215, the suspension plate 3221a of the gas-injection plate 3221 is driven to move away from the bottom surface of the gas-guiding-component loading region 3215 by the piezoelectric plate 3223c. In that, the volume of the flowing chamber 3227 is expanded rapidly, the internal pressure of the flowing chamber 3227 is decreased and generates a negative pressure, and the gas outside the piezoelectric actuator 322 is inhaled through the clearance 3221c and enters the resonance chamber 3226 through the hollow aperture 3221b. Consequently, the pressure in the resonance chamber 3226 is increased to generate a pressure gradient. When the suspension plate 3221a of the gas-injection plate 3221 is driven by the piezoelectric plate 3223c to move toward the bottom surface of the gas-guiding-component loading region 3215, the gas in the resonance chamber 3226 is discharged out rapidly through the hollow aperture 3221b, and the gas in the flowing chamber 3227 is compressed, thereby the converged gas is quickly and massively ejected out of the flowing chamber 3227 under the condition close to an ideal gas state of the Benulli's law, and transported to the ventilation hole 3215a of the gas-guiding-component loading region 3215.
By repeating the operation steps shown in
Furthermore, as shown in
In summary, the air purification device according to the present disclosure includes the device main body 1 and the gas detection module 3 is disposed in the device main body 1. When the particulate sensor 325 of the gas detection module 3 detects the harmful gases contained in the air, the gas guider 4 is intelligently enabled to guide the air to enter the device main body 1. The activated carbon layer 21a and the zeolite layer 21b included in the purification filter 2 disposed in the device main body 1 filter and purify the suspended particles (particulate matter, PM2.5) and the volatile organic compounds (VOCs) contained in the harmful gases and generate the purified gas, so as to reduce the opportunity of breathing the harmful gases in the activity space. Therefore, the air purification device of the present invention takes advantage of the combination of the activated carbon layer 21a and the zeolite layer 21b included in the purification filter 2 cooperated with the gas guider 4 in the device main body 1 to improve the efficiency of providing a purified and clean gas in the activity space.
While the invention has been described in terms of what is presently considered to be the most practical and preferred embodiments, it is to be understood that the invention needs not be limited to the disclosed embodiment. On the contrary, it is intended to cover various modifications and similar arrangements included within the spirit and scope of the appended claims which are to be accorded with the broadest interpretation so as to encompass all such modifications and similar structures.
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