Patent Description:
With the rapid development of the global population and industry, the air quality is deteriorating gradually. It is not only harmful to human health but also life-threatening in severe cases for people to expose in the harmful air pollution gases for a long time.

There are many pollutants in the air, such as carbon dioxide, carbon monoxide, formaldehyde, bacteria, fungi, volatile organic compound (VOC), suspended particulates or ozone, etc. which may be seriously harmful to the human body as the concentration of pollutants increases. In the case of suspended particles, such fine particles might pass through the alveoli and circulate throughout the body with the blood and is not only harmful to the respiratory tract, but also might cause cardiovascular disease or increases the risk of cancer.

Nowadays, the prevalence of epidemic diseases, such as influenza and pneumonia, not only threatens people's health, but also restricts people's social activities, and the willingness to take public transportation has also decreased. As a result, driving by themselves has become the first choice of transportation when people go out. Therefore, how to make sure that the air in the vehicle is clean and safe for people to breath at all times during driving by people becomes an important research and development topic of the present disclosure.

An object of the present invention is to provide a method of filtering air pollution in a vehicle. The air pollution filtration is executed in the inner space of a vehicle, so that the air pollution in the inner space of the vehicle can be filtered rapidly, so as to provide clean, safe and breathable air.

In accordance with an aspect of the present invention, a method of air pollution filtration in a vehicle is provided and includes: a) providing an in-car gas exchange system for intelligently selecting and controlling to introduced or not introduced an air outside the vehicle into the inner space of the vehicle, so as to generate an air convection; b) providing a plurality of filtration devices disposed in the inner space of the vehicle to detect and transmit an inside-device gas detection data, respectively, for intelligently selecting and controlling the activation of filtering the air pollution in the inner space of the vehicle; and c) providing a connection device to receive and compare the respective inside-device gas detection data, wherein the connection device selectively transmits a control instruction to enable the in-car gas exchange system and the filtration devices adjacent to the air pollution, so as to accelerate the movement of the air pollution by the air convection of the in-car gas exchange system, so that the air pollution is directionally moved toward the filtration devices adjacent thereto for filtration, whereby the air pollution in the inner space of the vehicle can be filtered rapidly, so as to provide clean, safe and breathable air.

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 invention 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 invention 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 <FIG>. The present disclosure provides a method of air pollution filtration, wherein exchanging and filtering are executed for air pollution in an inner space of the vehicle. The method is described in detail as follows.

Firstly, refer to <FIG>, <FIG> and <FIG>. An out-car gas detection device 1a is disposed outside a vehicle, and includes an air pollution detection module <NUM> for detecting the air pollution outside the vehicle and transmitting the out-car gas detection data. An in-car gas detection device 1b is disposed in the inner space of the vehicle, and includes an air pollution detection module <NUM> for detecting the air pollution inside the vehicle and transmitting an in-car gas detection data. Preferably but not exclusively, in an embodiment, the in-car gas detection device 1b is a mobile detection device. That is, the in-car gas detection device 1b is a wearable device, such as a watch or a bracelet, which is directly worn on the human body (not shown). When people are in the inner space of the vehicle, the in-car gas detection device 1b detects the air pollution in the inner space of the vehicle immediately in real-time at any time and transmits the in-car gas detection data.

The method for air pollution filtration in the vehicle according the present invention is described in detail as follows.

Firstly, in a step S1 of the method, an in-car gas exchange system <NUM> is provided in the inner space of the vehicle, for intelligently selecting and controlling the introduction of an air outside the vehicle into the inner space of the vehicle to generate an air convection in the inner space of the vehicle. In the embodiment, the in-car gas exchange system <NUM> includes an air intake channel <NUM>, an air conditioning unit <NUM>, a gas exchange channel <NUM>, a manifold channel <NUM> and a control drive unit <NUM>. In the embodiment, the air intake channel <NUM> has an air inlet <NUM> and at least one air outlet <NUM>, and an inlet valve <NUM> is disposed in the air inlet <NUM> for controlling the opening or closing of the air inlet <NUM>. In the embodiment, the air exchange channel <NUM> has a gas exchange inlet <NUM> and a gas exchange outlet <NUM>, and an outlet valve <NUM> is disposed in the gas exchange outlet <NUM> for controlling the opening or closing of the gas exchange outlet <NUM>. In the embodiment, the manifold channel <NUM> is in fluid communication between air intake channel <NUM> and the gas exchange channel <NUM>. As shown in <FIG>, the air conditioning unit <NUM> is disposed in the air intake channel <NUM>, so that the air in the inner space of the vehicle is transported into the gas exchange channel <NUM> through the gas exchange inlet <NUM>, with the gas exchange outlet <NUM> controlled to be closed by the outlet valve <NUM>, and then the air entering the air intake channel <NUM> through the manifold channel <NUM> is introduced into the inner space of the vehicle through the air outlet <NUM>, thereby a circulating air flow path is formed to adjust air temperature and humidity in the inner space of the vehicle. In the embodiment, the control drive unit <NUM> receives external information through a wireless communication transmission, so that the opening or closing of the inlet valve <NUM> and the outlet valve <NUM> is selectively controlled by the control drive unit <NUM>, so as to control the introduction of an air outside the vehicle into the inner space of the vehicle. As shown in <FIG>, the inlet valve <NUM> and the outlet valve <NUM> are intelligently selected to be opened by the control drive unit <NUM>, the air outside the vehicle is inhaled to the air intake channel <NUM> through the air inlet <NUM>, and introduced into the inner space of the vehicle through the air outlet <NUM>, and the air pollution in the inner space of the vehicle is introduced to the gas exchange channel <NUM> through the gas exchange inlet <NUM>, and discharged out of the inner space of the vehicle through the gas exchange outlet <NUM>. In that, the air pollution in the inner space of the vehicle is exchanged out of the vehicle. As shown in <FIG>, the inlet valve <NUM> and the outlet valve <NUM> are intelligently selected to be closed and opened by the control drive unit <NUM>, respectively, so that the air outside the vehicle is not introduced into the inner space of the vehicle, and the air pollution in the inner space of the vehicle is introduced to the gas exchange channel <NUM> through the gas exchange inlet <NUM>, and discharged out of the inner space of the vehicle through the gas exchange outlet <NUM>. In that, the air pollution in the inner space of the vehicle is exchanged out of the vehicle.

Please refer to <FIG>. In a step S2 of the method, at least one filtration device <NUM> is provided to detect and transmit an inside-device gas detection data for intelligently selecting and controlling the activation of filtering the air pollution in the inner space of the vehicle. In the embodiment, the filtration device <NUM> includes a main body <NUM>, a filtration unit <NUM> and a gas guider <NUM>. The main body <NUM> includes at least one inlet <NUM> and at least one outlet <NUM>, and a gas flow channel <NUM> is formed between the at least one inlet <NUM> and the at least one outlet <NUM>. The filtration unit <NUM> is disposed in the main body <NUM> for filtering the air pollution introduced into the main body <NUM> through the at least one inlet <NUM>. The gas guider <NUM> is disposed in the gas flow channel <NUM> and adjacent to the at least one outlet <NUM>, so as to control the air pollution outside the main body <NUM> to be inhaled and to flow through the filtration unit <NUM> for filtering and purifying, so that a purified gas is formed by filtering the air pollution and discharged out through the at least one outlet <NUM>. In the embodiment, the filtration device <NUM> further includes an air pollution detection module <NUM> disposed in the gas flow channel <NUM> for detecting the air pollution in the gas flow channel <NUM> and transmitting the inside-device gas detection data, and the air pollution detection module <NUM> controls an actuation of the gas guider <NUM>.

Please further refer to <FIG>. In a step S3 of the method, a connection device <NUM> is provided to receive and compare the respective inside-device gas detection data from the plurality of filtration devices <NUM>, so as to intelligently select and enable the filtration devices <NUM> adjacent to the air pollution. In that, the connection device <NUM> selectively transmits a control instruction to the in-car gas exchange system <NUM> and the plurality of filtration devices <NUM>, so as to accelerate the movement of the air pollution by the air convection created by the in-car gas exchange system, so that the air pollution is directionally moved toward the corresponding filtration devices <NUM> adjacent thereto for filtration. Whereby, the air pollution in the inner space of the vehicle can be filtered rapidly, so as to provide clean, safe and breathable air. Furthermore, the connection device <NUM> receives and compares the out-car gas detection data of the out-car gas detection device 1a, the in-car gas detection data of the in-car gas detection device 1b and the inside-device gas detection data of the filtration device <NUM> under the calculation of artificial intelligence, and allows the connection device <NUM> selectively transmits a control instruction to the in-car gas exchange system <NUM> and the filtration device <NUM>, thereby the air outside the vehicle is controlled to be introduced or not introduced into the inner space of the vehicle by the in-car gas exchange system <NUM>, and the air pollution in the inner space of the vehicle is exchanged out of the vehicle. At the same time, the filtration device <NUM> with the highest air pollution detection data is controlled and enabled to filter the air pollution in the inner space of the vehicle, so that the air pollution in the inner space of the vehicle is exchanged and filtered into a clean, safe and breathable condition. In a specific embodiment, the connection device <NUM> is a mobile device, which receives and compares the out-car gas detection data, the in-car gas detection data, and the inside-device gas detection data through a wireless communication transmission under the calculation of artificial intelligence, and then transmits a control instruction to the in-car gas exchange system <NUM> and the least one filtration device <NUM>. Preferably but not exclusively, the connection device <NUM> is a mobile device, which receives the out-car gas detection data, the in-car gas detection data, and the inside-device gas detection data through a wireless communication transmission, and then transmits them to a cloud processing device (not shown) for comparing under the calculation of artificial intelligence. The cloud processing device intelligently selects and transmits a control instruction to the connection device <NUM>, and then the connection device <NUM> transmits the control instruction to the in-car gas exchange system <NUM> and the at least one filtration device <NUM>.

According to the descriptions of the above method, the present disclosure provides a method of air pollution filtration in a vehicle. By comparing the out-car gas detection data, the in-car gas detection data and the inside-device gas detection data, the connection device <NUM> intelligently and selectively transmits a control instruction to enable the in-car gas exchange system <NUM> and the filtration device <NUM> adjacent to the air pollution. In the embodiment, the filtration device <NUM> adjacent to the air pollution means the filtration device <NUM> with the highest inside-device gas detection data. In that, the movement of the air pollution is accelerated by the air convection of the in-car gas exchange system <NUM>, so that the air pollution is directionally moved toward the filtration devices <NUM> adjacent thereto for filtration. Whereby, the air pollution in the inner space of the vehicle is filtered rapidly, so as to provide clean, safe and breathable air.

Regarding to how the connection device <NUM> intelligently selects to transmit a control instruction is described in detail as follows.

As shown in <FIG>, <FIG> and <FIG>, the out-car gas detection data, the in-car gas detection data and the inside-device gas detection data are received and compared under the calculation of artificial intelligence by the connection device <NUM>. When the connection device <NUM> indicates that the air pollution of the out-car gas detection data is lower than the in-car gas detection data, the control instruction transmitted by the connection device <NUM> is received by the control drive unit <NUM> of the in-car gas exchange system <NUM> at the same time, so that the inlet valve <NUM> and the outlet valve <NUM> are intelligently selected to be opened by the control drive unit <NUM>, the air outside the vehicle is inhaled to the air intake channel <NUM> through the air inlet <NUM>, and introduced into the inner space of the vehicle through the air outlet <NUM>, and the air pollution in the inner space of the vehicle is introduced to the gas exchange channel <NUM> through the gas exchange inlet <NUM>, and discharged out of the inner space of the vehicle through the gas exchange outlet <NUM>. In that, the air pollution in the inner space of the vehicle is exchanged out of the vehicle, and the in-car gas detection data detected for the air pollution in the inner space of the vehicle is reduced to a safe detection value.

As shown in <FIG>, <FIG> and <FIG>, the out-car gas detection data, the in-car gas detection data and the inside-device gas detection data are received and compared under the calculation of artificial intelligence by the connection device <NUM>. When the connection device <NUM> indicates that the air pollution of the in-car gas detection data is lower than the out-car gas detection data, the control instruction is transmitted by the connection device <NUM> and received by the control drive unit <NUM> of the in-car gas exchange system <NUM> at the same time, so that the inlet valve <NUM> and the outlet valve <NUM> are intelligently selected to be closed and opened by the control drive unit <NUM>, respectively, the air outside the vehicle is not introduced into the inner space of the vehicle, and the air pollution in the inner space of the vehicle is introduced to the gas exchange channel <NUM> through the gas exchange inlet <NUM>, and discharged out of the inner space of the vehicle through the gas exchange outlet <NUM>. In that, the air pollution in the inner space of the vehicle is exchanged out of the vehicle, and the in-car gas detection data detected for the air pollution in the inner space of the vehicle is reduced to a safe detection value.

When the out-car gas detection data, the in-car gas detection data and the inside-device gas detection data are received and compared under the calculation of artificial intelligence by the connection device <NUM>, and the connection device <NUM> indicates that the air pollution of the in-car gas detection data is lower than the out-car gas detection data, the control instruction is transmitted by the connection device <NUM> and received by the control drive unit <NUM> of the in-car gas exchange system <NUM> at the same time, so that the inlet valve <NUM> and the outlet valve <NUM> are intelligently selected to be closed and opened by the control drive unit <NUM>, respectively, the air outside the vehicle is not introduced into the inner space of the vehicle. Furthermore, the control instruction is intelligently selected to be transmitted by the connection device <NUM> to control and actuate the filtration device <NUM> at the same time, so as to filter and purify the air pollution in the inner space of the vehicle. In that, the in-car gas detection data detected for the air pollution in the inner space of the vehicle is reduced to a safe detection value.

When the out-car gas detection data, the in-car gas detection data and the inside-device gas detection data are received and compared under the calculation of artificial intelligence by the connection device <NUM>, and the in-car gas detection data compared by the connection device <NUM> is indicated as a polluted valve, the control instruction is transmitted by the connection device <NUM> to the specific filtration devices <NUM> which has the highest polluted valve of air pollution. In that, the specific filtration device <NUM> adjacent to the air pollution is controlled and enabled, so as to filter and purify the air pollution in the inner space of the vehicle. Whereby, the in-car gas detection data detected for the air pollution in the inner space of the vehicle is reduced to a safe detection value.

In the embodiment, the out-car gas detection data, the in-car gas detection data and the inside-device gas detection data are detecting data of the air pollution. Preferably but not exclusively, the air pollution is one selected from the group consisting of suspended particles (PM<NUM>, PM<NUM>, PM<NUM>), carbon monoxide (CO), carbon dioxide (CO<NUM>), sulfur dioxide (SO<NUM>), nitrogen dioxide (NO<NUM>), lead (Pb), ozone (O<NUM>), total volatile organic compounds (TVOC), formaldehyde (HCHO), bacteria, virus and a combination thereof. Preferably but not exclusively, the safe detection value includes one selected from the group consisting of suspended particles <NUM> concentration (PM<NUM>) of less than <NUM>µg/m<NUM>, carbon dioxide content (CO<NUM>) of less than <NUM> ppm, total volatile organic compounds (TVOC) of less than <NUM> ppm, formaldehyde (HCHO) content of less than <NUM> ppm, the amount of bacteria of less than <NUM> CFU/m<NUM>, the amount of fungi of less than <NUM> CFU/m<NUM>, sulfur dioxide (SO<NUM>) content of less than <NUM> ppm, nitrogen dioxide (NO<NUM>) content of less than <NUM> ppm, carbon monoxide (CO) content of less than <NUM> ppm, ozone (O<NUM>) content of less than <NUM> ppm, lead (Pb) content of less than <NUM>. 15µg/m<NUM> and a combination thereof.

After understanding the method of air pollution filtration in the vehicle according to the present disclosure, the device for executing the present disclosure is described in detail as follows.

As shown in <FIG>, <FIG> and <FIG>, in the embodiment, the air pollution detection module <NUM> includes a controlling circuit board <NUM>, a gas detection main part <NUM>, a microprocessor <NUM> and a communicator <NUM>. The gas detection main part <NUM>, the microprocessor <NUM> and the communicator <NUM> are integrally packaged on the controlling circuit board <NUM> and electrically connected to each other. In the embodiment, the microprocessor <NUM> and the communicator <NUM> are mounted on the controlling circuit board <NUM>. The microprocessor <NUM> controls the detection of the gas detection main part <NUM>, and the gas detection main part <NUM> detects the air pollution and outputs a detection signal. The microprocessor <NUM> receives the detection signal for calculating, processing and outputting, so that the respective microprocessor <NUM> of the respective air pollution detection module <NUM> in the out-car gas detection device 1a, the in-car gas detection device 1b and the filtration device <NUM> generates the out-car gas detection data, the in-car gas detection data and the inside-device gas detection data, respectively, and provides them to the respective communicators <NUM> for external communication transmission.

Preferably but not exclusively, in the embodiment, the communicator <NUM> is connected to the connection device <NUM> for signal connection and transmission. In that, the out-car gas detection data, the in-car gas detection data and the inside-device gas detection data transmitted from the respective communicator <NUM> are received by the connection device <NUM> and compared under the calculation of artificial intelligence, and then the connection device <NUM> selectively transmits a control instruction so as to intelligently select and control the operation and operation time of the in-car gas exchange system <NUM> and the filtration device <NUM>. Whereby, the air outside the vehicle is controlled to be introduced or not introduced into the inner space of the vehicle by the in-car gas exchange system <NUM>, and the air pollution in the inner space of the vehicle is exchanged out of the vehicle. At the same time, the filtration device <NUM> is controlled and enabled to filter the air pollution in the inner space of the vehicle, so that the air pollution in the inner space of the vehicle is exchanged and filtered into a clean, safe and breathable condition. In the embodiment, the respective communicator <NUM> communicates with the connection device <NUM> through a wireless communication transmission. Preferably but not exclusively, the wireless communication transmission is one selected from the group consisting of a Wi-Fi communication transmission, Bluetooth communication transmission, a radio frequency identification communication transmission and a near field communication (NFC) transmission.

Please refer to <FIG>, <FIG>, <FIG> and <FIG>. In the embodiment, the gas detection main part <NUM> includes a base <NUM>, a piezoelectric actuator <NUM>, a driving circuit board <NUM>, a laser component <NUM>, a particulate sensor <NUM>, a gas sensor <NUM> and an outer cover <NUM>.

In the embodiment, the base <NUM> includes a first surface <NUM>, a second surface <NUM>, a laser loading region <NUM>, a gas-inlet groove <NUM>, a gas-guiding-component loading region <NUM> and a gas-outlet groove <NUM>. In the embodiment, the first surface <NUM> and the second surface <NUM> are two surfaces opposite to each other. In the embodiment, the laser loading region <NUM> is hollowed out from the first surface <NUM> toward the second surface <NUM>. The outer cover <NUM> covers the base <NUM>. In the embodiment, the gas-guiding-component loading region <NUM> mentioned above is concavely formed from the second surface <NUM> and in communication with the gas-inlet groove <NUM>. A ventilation hole 5215a penetrates a bottom surface of the gas-guiding-component loading region <NUM>. The gas-guiding-component loading region <NUM> includes four positioning protrusions 5215b disposed at four corners of the gas-guiding-component loading region <NUM>, respectively. In the embodiment, the gas-outlet groove <NUM> includes a gas-outlet 5216a, and the gas-outlet 5216a is spatially corresponding to the outlet opening 5261b of the outer cover <NUM>. The gas-outlet groove <NUM> includes a first section 5216b and a second section 5216c. The first section 5216b is concavely formed on a region out from the first surface <NUM> spatially corresponding to a vertical projection area of the gas-guiding-component loading region <NUM>. The second section 5216c is hollowed out from the first surface <NUM> to the second surface <NUM> in a region where the first surface <NUM> is extended from the vertical projection area of the gas-guiding-component loading region <NUM>. The first section 5216b and the second section 5216c are connected to form a stepped structure. Moreover, the first section 5216b of the gas-outlet groove <NUM> is in communication with the ventilation hole 5215a of the gas-guiding-component loading region <NUM>, and the second section 5216c of the gas-outlet groove <NUM> is in communication with the gas-outlet 5216a. In that, when first surface <NUM> of the base <NUM> is attached and covered by the outer cover <NUM> and the second surface <NUM> of the base <NUM> is attached and covered by the driving circuit board <NUM>, the gas-outlet groove <NUM> and the driving circuit board <NUM> collaboratively define an outlet path. In the embodiment, the outer cover <NUM> includes a side plate <NUM>. The side plate <NUM> has an inlet opening 5261a and an outlet opening 5261b. The gas-inlet groove <NUM> is concavely formed from the second surface <NUM> and disposed adjacent to the laser loading region <NUM>. The gas-inlet groove <NUM> includes a gas-inlet 5214a and two lateral walls. The gas-inlet 5214a is in communication with an environment outside the base <NUM>, and is spatially corresponding in position to an inlet opening 5261a of the outer cover <NUM>. Two transparent windows 5214b are opened on the two lateral walls and are in communication with the laser loading region <NUM>. Therefore, the first surface <NUM> of the base <NUM> is covered and attached by the outer cover <NUM>, and the second surface <NUM> is covered and attached by the driving circuit board <NUM>, so that an inlet path is defined by the gas-inlet groove <NUM>.

In the embodiment, the laser component <NUM>, the particulate sensor <NUM> and the gas sensor <NUM> are disposed on and electrically connected to the driving circuit board <NUM> and located within the base <NUM>. In order to clearly describe and illustrate the positions of the laser component <NUM>, the particulate sensor <NUM> and the gas sensor <NUM> in the base <NUM>, the driving circuit board <NUM> is intentionally omitted in <FIG>. The laser component <NUM> is accommodated in the laser loading region <NUM> of the base <NUM>, and the particulate sensor <NUM> is accommodated in the gas-inlet groove <NUM> of the base <NUM> and is aligned to the laser component <NUM>. In addition, the laser component <NUM> is spatially corresponding to the transparent window 5214b, therefore a light beam emitted by the laser component <NUM> passes through the transparent window 5214b and is irradiated into the gas-inlet groove <NUM>. A light beam path from the laser component <NUM> passes through the transparent window 5214b and extends in an orthogonal direction perpendicular to the gas-inlet groove <NUM>. In the embodiment, a projecting light beam emitted from the laser component <NUM> passes through the transparent window 5214b and enters the gas-inlet groove <NUM> to irradiate the suspended particles contained in the gas passing through the gas-inlet groove <NUM>. When the suspended particles contained in the air are irradiated and generate scattered light spots, the scattered light spots are received and calculated by the particulate sensor <NUM> to obtain the gas detection information. In the embodiment, the particulate sensor <NUM> detects suspended particles (PM<NUM>, PM<NUM>, PM<NUM>) information. In the embodiment, the gas sensor <NUM> is positioned and disposed on the driving circuit board <NUM>, electrically connected to the driving circuit board <NUM>, and accommodated in the gas-outlet groove <NUM>, so as to detect the air introduced into the gas-outlet groove <NUM>. Preferably but not exclusively, in an embodiment, the gas sensor <NUM> includes a volatile-organic-compound sensor detecting carbon dioxide (CO<NUM>) or volatile organic compounds (TVOC) information. Preferably but not exclusively, in an embodiment, the gas sensor <NUM> includes a formaldehyde sensor for detecting formaldehyde (HCHO) gas information. Preferably but not exclusively, in an embodiment, the gas sensor <NUM> includes a bacteria sensor for detecting bacteria or fungi information. Preferably but not exclusively, in an embodiment, the gas sensor <NUM> includes a virus sensor for detecting virus gas information.

Please refer to <FIG> and <FIG>. In the embodiment, the piezoelectric actuator <NUM> includes a gas-injection plate <NUM>, a chamber frame <NUM>, an actuator element <NUM>, an insulation frame <NUM> and a conductive frame <NUM>. In the embodiment, the gas-injection plate <NUM> is made by a flexible material and includes a suspension plate 5221a and a hollow aperture 5221b. The suspension plate 5221a 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 5221a are accommodated in the inner edge of the gas-guiding-component loading region <NUM>, but not limited thereto. The hollow aperture 5221b passes through a center of the suspension plate 5221a, so as to allow the air to flow therethrough. The shape of the suspension plate 5221a is selected from the group consisting of a square, a circle, an ellipse, a triangle and a polygon, but not limited thereto. In the embodiment, the chamber frame <NUM> is carried and stacked on the gas-injection plate <NUM>. In addition, the shape of the chamber frame <NUM> is corresponding to the gas-injection plate <NUM>. The actuator element <NUM> is carried and stacked on the chamber frame <NUM>. A resonance chamber <NUM> is collaboratively defined by the actuator element <NUM>, the chamber frame <NUM> and the suspension plate 5221a and is formed between the actuator element <NUM>, the chamber frame <NUM> and the suspension plate 5221a. The insulation frame <NUM> is carried and stacked on the actuator element <NUM> and the appearance of the insulation frame <NUM> is similar to that of the chamber frame <NUM>. The conductive frame <NUM> is carried and stacked on the insulation frame <NUM>, and the appearance of the conductive frame <NUM> is similar to that of the insulation frame <NUM>. In addition, the conductive frame <NUM> includes a conducting pin 5225a and a conducting electrode 5225b. The conducting pin 5225a is extended outwardly from an outer edge of the conductive frame <NUM>, and the conducting electrode 5225b is extended inwardly from an inner edge of the conductive frame <NUM>. Moreover, the actuator element <NUM> further includes a piezoelectric carrying plate 5223a, an adjusting resonance plate 5223b and a piezoelectric plate 5223c. The piezoelectric carrying plate 5223a is carried and stacked on the chamber frame <NUM>. The adjusting resonance plate 5223b is carried and stacked on the piezoelectric carrying plate 5223a. The piezoelectric plate 5223c is carried and stacked on the adjusting resonance plate 5223b. The adjusting resonance plate 5223b and the piezoelectric plate 5223c are accommodated in the insulation frame <NUM>. The conducting electrode 5225b of the conductive frame <NUM> is electrically connected to the piezoelectric plate 5223c. In the embodiment, the piezoelectric carrying plate 5223a and the adjusting resonance plate 5223b are made by a conductive material. The piezoelectric carrying plate 5223a includes a piezoelectric pin 5223d. The piezoelectric pin 5223d and the conducting pin 5225a are electrically connected to a driving circuit (not shown) of the driving circuit board <NUM>, so as to receive a driving signal, such as a driving frequency and a driving voltage. Through this structure, a circuit is formed by the piezoelectric pin 5223d, the piezoelectric carrying plate 5223a, the adjusting resonance plate 5223b, the piezoelectric plate 5223c, the conducting electrode 5225b, the conductive frame <NUM> and the conducting pin 5225a for transmitting the driving signal. Moreover, the insulation frame <NUM> is insulated between the conductive frame <NUM> and the actuator element <NUM>, so as to avoid the occurrence of a short circuit. Thereby, the driving signal is transmitted to the piezoelectric plate 5223c. After receiving the driving signal such as the driving frequency and the driving voltage, the piezoelectric plate 5223c deforms due to the piezoelectric effect, and the piezoelectric carrying plate 5223a and the adjusting resonance plate 5223b are further driven to generate the bending deformation in the reciprocating manner.

Furthermore, in the embodiment, the adjusting resonance plate 5223b is located between the piezoelectric plate 5223c and the piezoelectric carrying plate 5223a and served as a cushion between the piezoelectric plate 5223c and the piezoelectric carrying plate 5223a. Thereby, the vibration frequency of the piezoelectric carrying plate 5223a is adjustable. Basically, the thickness of the adjusting resonance plate 5223b is greater than the thickness of the piezoelectric carrying plate 5223a, and the vibration frequency of the actuator element <NUM> can be adjusted by adjusting the thickness of the adjusting resonance plate 5223b.

Please refer to <FIG>, <FIG>, <FIG>, <FIG> and <FIG>. In the embodiment, the gas-injection plate <NUM>, the chamber frame <NUM>, the actuator element <NUM>, the insulation frame <NUM> and the conductive frame <NUM> are stacked and positioned in the gas-guiding-component loading region <NUM> sequentially, so that the piezoelectric actuator <NUM> is supported and positioned in the gas-guiding-component loading region <NUM>, and carried on the four positioning protrusions 5215b of the gas-guiding-component loading region <NUM> for supporting and positioning, so that a plurality of vacant spaces 5221c are defined between the suspension plate 5221a of the gas-injection plate <NUM> and an inner edge of the gas-guiding-component loading region <NUM> for gas flowing therethrough. A resonance chamber <NUM> is collaboratively defined by the actuator element <NUM>, the chamber frame <NUM> and the suspension plate 5221a. A flowing chamber <NUM> is formed between the gas-injection plate <NUM> and the bottom surface of the gas-guiding-component loading region <NUM>. The flowing chamber <NUM> is in communication with the resonance chamber <NUM> between the actuator element <NUM>, the chamber frame <NUM> and the suspension plate 5221a through the hollow aperture 5221b of the gas-injection plate <NUM>. By controlling the vibration frequency of the air in the resonance chamber <NUM> to be close to the vibration frequency of the suspension plate 5221a, the Helmholtz resonance effect is generated between the resonance chamber <NUM> and the suspension plate 5221a, so as to improve the efficiency of gas transportation.

As shown in <FIG>, when the piezoelectric plate 5223c is moved away from the bottom surface of the gas-guiding-component loading region <NUM>, the suspension plate 5221a of the gas-injection plate <NUM> is driven to move away from the bottom surface of the gas-guiding-component loading region <NUM> by the piezoelectric plate 5223c. In that, the volume of the flowing chamber <NUM> is expanded rapidly, the internal pressure of the flowing chamber <NUM> is decreased to form a negative pressure, and the air outside the piezoelectric actuator <NUM> is inhaled through the vacant spaces 5221c and enters the resonance chamber <NUM> through the hollow aperture 5221b. Consequently, the pressure in the resonance chamber <NUM> is increased to generate a pressure gradient.

Furthermore, as shown in <FIG>, when the suspension plate 5221a of the gas-injection plate <NUM> is driven by the piezoelectric plate 5223c to move toward the bottom surface of the gas-guiding-component loading region <NUM>, the air in the resonance chamber <NUM> is discharged out rapidly through the hollow aperture 5221b, and the air in the flowing chamber <NUM> is compressed, thereby the converged air is quickly and massively ejected out of the flowing chamber <NUM> under the condition close to an ideal gas state of the Benulli's law, and transported to the ventilation hole 5215a of the gas-guiding-component loading region <NUM>.

In the embodiment, the gas-guiding-component loading region <NUM> of the base <NUM> is in fluid communication with the gas-inlet groove <NUM>, and the piezoelectric actuator <NUM> is accommodated in the square-shaped gas-guiding-component loading region <NUM> of the base <NUM>. Moreover, the driving circuit board <NUM> covers the second surface <NUM> of the base <NUM>, and the laser component <NUM> is positioned and disposed on the driving circuit board <NUM>, and is electrically connected to the driving circuit board <NUM>. The particulate sensor <NUM> is positioned and disposed on the driving circuit board <NUM>, and is electrically connected to the driving circuit board <NUM>. In that, when the outer cover <NUM> covers the base <NUM>, the inlet opening 5261a is spatially corresponding to the gas-inlet 5214a of the base <NUM>, and the outlet opening 5261b is spatially corresponding to the gas-outlet 5216a of the base <NUM>. By repeating the above operation steps shown in <FIG> and <FIG>, the piezoelectric plate 5223c is driven to generate the bending deformation in a reciprocating manner. According to the principle of inertia, since the gas pressure inside the resonance chamber <NUM> is lower than the equilibrium gas pressure after the converged gas is ejected out, the air is introduced into the resonance chamber <NUM> again. Moreover, the vibration frequency of the gas in the resonance chamber <NUM> is controlled to be close to the vibration frequency of the piezoelectric plate 5223c, so as to generate the Helmholtz resonance effect to achieve the gas transportation at high speed and in large quantities.

Furthermore, as shown in <FIG>, the air outside the air pollution detection module <NUM> is inhaled through the inlet opening 5261a of the outer cover <NUM>, flows into the gas-inlet groove <NUM> of the base <NUM> through the gas-inlet 5214a, and is transported to the position of the particulate sensor <NUM>. The piezoelectric actuator <NUM> is enabled continuously to inhale the gas into the inlet path, and facilitate the air outside the air pollution detection module to be introduced rapidly, flow stably, and transported above the particulate sensor <NUM>. Further as shown in <FIG>, a projecting light beam emitted from the laser component <NUM> passes through the transparent window 5214b to irritate the suspended particles contained in the gas flowing above the particulate sensor <NUM> in the gas-inlet groove <NUM>. When the suspended particles contained in the gas are irradiated and generate scattered light spots, the scattered light spots are received and calculated by the particulate sensor <NUM> for obtaining related information about the sizes and the concentration of the suspended particles contained in the gas. Moreover, the gas above the particulate sensor <NUM> is continuously driven and transported by the piezoelectric actuator <NUM>, flows into the ventilation hole 5215a of the gas-guiding-component loading region <NUM>, and is transported to the gas-outlet groove <NUM>. As shown in <FIG>, When the gas flows into the gas outlet groove <NUM>, the gas is detected through the gas sensor <NUM>. Since the gas is continuously transported into the gas outlet groove <NUM> by the piezoelectric actuator <NUM>, the gas in the gas outlet groove <NUM> is pushed to flow through the gas-outlet 5216a and the outlet opening 5261b and discharged out.

In the embodiment, the air pollution outside the out-car gas detection device 1a, the in-car gas detection device 1b and the filtration device <NUM> is inhaled by the respective air pollution detection module <NUM> in the out-car gas detection device 1a, the in-car gas detection device 1b and the filtration device <NUM>. In that, the air pollution is inhaled into the inlet path defined by the gas-inlet groove <NUM> through the inlet opening 5261a, and passes through the particulate sensor <NUM> to detect the particle concentration of the suspended particles contained in the air pollution. Furthermore, the air pollution transported by the piezoelectric actuator <NUM> flows through the ventilation hole 5215a of the gas-guiding-component loading region <NUM>, enters the outlet path defined by the gas-outlet groove <NUM>, passes through the gas sensor <NUM> for detecting, and then is discharged through the gas-outlet 5216a of the base <NUM> the outlet opening 5261b. In that, the air pollution detection module <NUM> of the present disclosure not only detects the suspended particles in the air, but also detects the introduced air pollution. Preferably but not exclusively, the introduced air pollution is detected is selected from the group consisting of carbon monoxide (CO), carbon dioxide (CO<NUM>), ozone (O<NUM>), sulfur dioxide (SO<NUM>), nitrogen dioxide (NO<NUM>), lead (Pb), total volatile organic compounds (TVOC), formaldehyde (HCHO), bacteria, fungi, virus and a combination thereof.

Please refer to <FIG>. The above-mentioned filtration unit <NUM> can be executed in the combination of various embodiments. Preferably but not exclusively, in the embodiment as shown in <FIG>, the filtration unit <NUM> includes a high efficiency particulate air (HEPA) filter screen 32a. The air introduced through the gas flow channel <NUM> is filtered through the HEPA filter screen 32a to adsorb the chemical smoke, bacteria, dust particles and pollen contained therein to achieve the effects of filtering and purifying. In an embodiment, the high efficiency particulate air filter screen 32a is coated with a cleansing factor containing chlorine dioxide to inhibit viruses and bacteria contained in the air pollution introduced through the gas flow channel <NUM>. In an embodiment, the high efficiency particulate air filter screen 32a is coated with an herbal protective layer extracted from ginkgo and Japanese rhus chinensis to form an herbal protective anti-allergic filter, so as to resist allergy effectively and destroy a surface protein of influenza virus contained in the air pollution introduced through the gas flow channel <NUM>. In an embodiment, the high efficiency particulate air filter screen 32a is coated with a silver ion to inhibit viruses and bacteria contained in the air pollution passing through the gas flow channel <NUM>.

In the embodiment as shown in <FIG>, the filtration unit <NUM> includes a photo-catalyst unit 32b combined with the HEPA filter screen 32a. The photo-catalyst unit 32b includes a photo-catalyst 321b and an ultraviolet lamp 322b. The photo-catalyst 321b is irradiated with the ultraviolet lamp 322b to decompose the air pollution introduced through the gas flow channel <NUM> for filtering and filtration, so as to purify the gas. In the embodiment, the photo-catalyst 321b and the ultraviolet lamp 322b are disposed in the gas flow channel <NUM>, respectively, and spaced apart from each other at a distance. In the embodiment, the air pollution is introduced through the gas flow channel <NUM> and the photo-catalyst 21b is irradiated by the ultraviolet lamp 22b to convert light energy into chemical energy, thereby decomposing harmful gases in the air pollution and disinfecting bacteria contained therein, so as to achieve the effects of filtering and purifying.

In the embodiment as shown in <FIG>, in the embodiment, the filtration unit <NUM> includes a photo-plasma unit 32c combined with the HEPA filter screen 32a. The photo-plasma unit 32c includes a nanometer irradiation tube 321c. The air pollution introduced through the gas flow channel <NUM> is irradiated by the nanometer irradiation tube 321c to decompose and purify volatile organic compounds contained therein. In the embodiment, the nanometer irradiation tube 321c is disposed in the gas flow channel <NUM>. The air pollution introduced through the gas flow channel <NUM> is irradiated by the nanometer irradiation tube 321c, thereby oxygen molecules and water molecules contained in the air pollution are decomposed into high oxidizing photo-plasma, and generates an ion flow capable of destroying organic molecules. In that, volatile formaldehyde, volatile toluene and volatile organic compounds (VOC) contained in the air pollution are decomposed into water and carbon dioxide, so as to achieve the effects of filtering and purifying.

In the embodiment as shown in <FIG>, the filtration unit <NUM> includes a negative ionizer 32d combined with the HEPA filter screen 32a. The negative ionizer 32d includes at least one electrode wire 321d, at least one dust collecting plate 322d and a boost power supply device 323d. When a high voltage is discharged through the electrode wire 321d, the suspended particles contained in the air pollution introduced through the gas flow channel <NUM> are attached to the dust collecting plate 322d, so as to be filtered and purified. In the embodiment, the at least one electrode wire 321d and the at least one dust collecting plate 322d are disposed within the gas flow channel <NUM>. When the at least one electrode wire 321d is provided with a high voltage to discharge by the boost power supply device 323d, the dust collecting plate 322d is carried with negative charge. When the air pollution is introduced through the gas flow channel <NUM>, the at least one electrode wire 321d discharges to make the suspended particles in the air pollution to carry with positive charge, and therefore the suspended particles contained in the air pollution with positive charge are adhered to the dust collecting plate 322d with negative charges, so as to achieve the effects of filtering and purifying the air pollution introduced.

In the embodiment as shown in <FIG>, the filtration unit <NUM> includes a plasma ion unit 32e combined with the HEPA filter screen 32a. The plasma ion unit 32e includes a first electric-field protection screen 321e, an adsorption filter screen 322e, a high-voltage discharge electrode 323e, a second electric-field protection screen 324e and a boost power supply device 325e. The boost power supply device 325e provides a high voltage to the high-voltage discharge electrode 323e to discharge and form a high-voltage plasma column with plasma ion, so as to decompose viruses or bacteria contained in the air pollution introduced through the gas flow channel <NUM> by the plasma ion. In the embodiment, the first electric-field protection screen 321e, the adsorption filter screen 322e, the high-voltage discharge electrode 323e and the second electric-field protection screen 324e are disposed within the gas flow channel <NUM>. The adsorption filter screen 322e and the high-voltage discharge electrode 323e are located between the first electric-field protection screen 321e and the second electric-field protection screen 324e. As the high-voltage discharge electrode 323e is provided with a high voltage by the boost power supply 325e, a high-voltage plasma column with plasma ion is formed. When the air pollution is introduced into the gas flow channel <NUM>, oxygen molecules and water molecules contained in the air pollution are decomposed into positive hydrogen ions (H+) and negative oxygen ions (O<NUM>-) by the plasma ion. The substances attached with water around the ions are adhered on the surface of viruses and bacteria and converted into OH radicals with extremely strong oxidizing power, thereby removing hydrogen (H) from the protein on the surface of viruses and bacteria, and thus decomposing (oxidizing) the protein, so as to filter the introduced air pollution and achieve the effects of filtering and purifying.

Please refer to <FIG> and <FIG>. In the embodiment, a plurality of air pollution detection modules <NUM> disposed in the inner space of the vehicle are located at a first seat 1c, a second seat 1d, a third seat 1e and a fourth seat 1f, respectively. The four seats, the first seat 1c to the fourth seat 1f, are disposed around one filtration device <NUM>. When the respective air pollution detection module <NUM> detects the air pollution adjacent to the corresponding seat and one of them, for example the first seat 1c, has the highest polluted value, a detection signal is transmitted to the microprocessor <NUM>. In that, the filtration device <NUM> generates and transmits the inside-device gas detection data to the connection device <NUM>, and the connection device <NUM> transmits the control instruction to enable the single filtration device <NUM>, so as to filter and purify the air pollution of the four seats, the first seat 1c to the fourth seat 1f, at the same time. Since only one single filtration device <NUM> is used in the embodiment to filter the air pollution of the four seats at the same time, the filtration efficiency of the filtration device <NUM> is divided into the four seats, the first seat 1c to the fourth seat 1f, during the filtration process. As shown in <FIG>, the experiment shows that one single filtration device <NUM> is used to filter and purify the air pollution of four seats, the first seat 1c to the fourth seat 1f, at the same time. The air pollution is filtered and purified to a safe detection value of <NUM>, and the average required time is <NUM> minute and <NUM> seconds.

Please refer to <FIG> and <FIG>. In the embodiment, four air pollution detection modules <NUM> are disposed at a first seat 1c, a second seat 1d, a third seat 1e and a fourth seat 1f, respectively, and four filtration devices <NUM> are disposed adjacent to the four seats, respectively. When the respective air pollution detection module <NUM> detects the air pollution adjacent to the corresponding seat, for example the first seat 1c, and one of them has the highest polluted value, a detection signal is transmitted to the microprocessor <NUM>. In that, the four filtration devices <NUM> generate and transmit the inside-device gas detection data to the connection device <NUM>, respectively. When the connection device <NUM> receives the inside-device gas detection data, the connection device <NUM> transmits the control instruction to the in-car gas exchange system <NUM> and the corresponding filtration device <NUM> adjacent to the first seat 1c, and the corresponding filtration device <NUM> adjacent to the first seat 1c is enable at the same time. The in-car gas exchange system <NUM> generates an air convection to speed up the movement of the air pollution, and the air pollution is directionally moved toward the corresponding filtration devices <NUM> with the highest polluted value (the highest polluted value of the inside-device gas detection data) for filtration. As shown in <FIG>, the experiment shows that four filtration devices <NUM> are used to filter and purify the air pollution of four seats, the first seat 1c to the fourth seat 1f, respectively. The air pollution is filtered and purified to a safe detection value of <NUM>, and the average required time is <NUM> seconds. Obviously, the filtration efficiency is improved as compare with <NUM> minute and <NUM> seconds in the previous embodiment.

Claim 1:
A method of air pollution filtration in a vehicle for exchanging and filtering air pollution in an inner space of the vehicle, the method comprises:
a) providing an in-car gas exchange system (<NUM>) for intelligently selecting and controlling the introduction of an air outside the vehicle into the inner space of the vehicle which is configured to generate an air convection;
b) providing a plurality of filtration devices (<NUM>) disposed in the inner space of the vehicle to detect and transmit an inside-device gas detection data, respectively, for intelligently selecting and controlling the activation of filtering the air pollution in the inner space of the vehicle; and
c) providing a connection device (<NUM>) to receive and compare the respective inside-device gas detection data, wherein the connection device selectively transmits a control instruction to drive the in-car gas exchange system (<NUM>) and one of the plurality of filtration devices (<NUM>) adjacent to the air pollution, and accelerate the movement of the air pollution by the air convection of the in-car gas exchange system (<NUM>), so that the air pollution is directionally moved toward the filtration devices (<NUM>) adjacent to the air pollution for filtration, whereby the air pollution in the inner space of the vehicle is filtered rapidly, so as to provide clean, safe and breathable air.