| CPC B01D 46/0086 (2013.01) [B01D 46/009 (2013.01)] | 18 Claims |
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1. A method for notifying a service life of a filter, comprising:
providing at least one filter for filtering an air pollution source;
providing at least one gas detection device disposed in at least one gas path where the air pollution source has been filtered by the filter, for detecting the air pollution source and outputting a detection data of the air pollution source;
providing at least one connection device for receiving, computing and comparing the detection data of the air pollution source detected by the gas detection device, so as to display at least one reducing rate of filtering efficiency for the filter after filtering the air pollution source; and
providing a notification alert for replacing the at least one filter when the reducing rate of filtering efficiency for the filter after filtering the air pollution source computed by the at least one connection device reaching a preset alert value,
wherein the gas detection device comprises a control circuit board, a gas detection main body, a microprocessor and a communicator, and wherein the gas detection main body, the microprocessor and the communicator are integrally packaged on the control circuit board and electrically connected with the control circuit board, the microprocessor controls a detection operation of the gas detection main body, the gas detection main body detects the air pollution source and outputs a detection signal, and the microprocessor receives, computes and processes the detection signal to generate the detection data of the air pollution source for providing to the communicator for external wireless transmission,
wherein the gas detection main body comprises:
a base comprising:
a first surface;
a second surface opposite to the first surface;
a laser loading region hollowed out from the first surface to the second surface;
a gas-inlet groove concavely formed from the second surface and disposed adjacent to the laser loading region, wherein the gas-inlet groove comprises a gas-inlet and a transparent window opened on the lateral wall thereof and in communication with the laser loading region;
a gas-guiding-component loading region concavely formed from the second surface and in communication with the gas-inlet groove, and having a ventilation hole penetrated a bottom surface thereof; and
a gas-outlet groove concavely formed from a region of the first surface spatially corresponding to the bottom surface of the gas-guiding-component loading region and hollowed out from the first surface to the second surface in a region where the first surface is misaligned with the gas-guiding-component loading region, wherein the gas-outlet groove is in communication with the ventilation hole and comprises a gas-outlet mounted thereon;
a piezoelectric actuator accommodated in the gas-guiding-component loading region;
a driving circuit board covering and attaching to the second surface of the base;
a laser component positioned and disposed on the driving circuit board and electrically connected to the driving circuit board, and accommodated in the laser loading region, wherein a light beam path emitted by the laser component passes through the transparent window and extends in an orthogonal direction perpendicular to the gas-inlet groove;
a particulate sensor positioned and disposed on the driving circuit board and electrically connected to the driving circuit board, and accommodated in the gas-inlet groove at a region in an orthogonal direction perpendicular to the light beam path emitted by the laser component, for detecting particulates in the air pollution source passing through the gas-inlet groove and irradiated by a light beam emitted from the laser component; and
a gas sensor positioned and disposed on the driving circuit board and electrically connected to the driving circuit board, and accommodated in the gas-outlet groove, for detecting the air pollution source guided into the gas-outlet groove; and
an outer cover covering the base and comprising a lateral plate, wherein the lateral plate comprises an inlet opening and an outlet opening, and wherein the inlet opening is spatially corresponding to the gas-inlet of the base and the outlet opening is spatially corresponding to the gas-outlet of the base,
wherein the first surface of the base is covered by the outer cover, and the second surface of the base is covered by the driving circuit board, so that an inlet path is defined by the gas-inlet groove and an outlet path is defined by the gas-outlet groove, thereby the piezoelectric actuator introduces the air pollution source in the air outside the gas-inlet of the base into the inlet path defined by the gas-inlet groove through the inlet opening, the particulate sensor detects a concentration of the particulates contained in the air pollution source, and the air pollution source enters the outlet path defined by the gas-outlet groove through the ventilation hole is detected by the gas sensor and discharged through the gas-outlet of the base and the outlet opening.
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