| CPC B01D 46/46 (2013.01) [A61L 9/013 (2013.01); A61L 9/014 (2013.01); A61L 9/16 (2013.01); A61L 9/20 (2013.01); A61L 9/205 (2013.01); A61L 9/22 (2013.01); A62B 7/10 (2013.01); B01D 46/0028 (2013.01); B01D 46/0043 (2013.01); B01D 53/007 (2013.01); B01D 53/30 (2013.01); B01D 53/323 (2013.01); B03C 3/04 (2013.01); B03C 3/47 (2013.01); G01N 15/06 (2013.01); G01N 21/39 (2013.01); G01N 33/0047 (2013.01); G08B 21/12 (2013.01); A61L 2101/06 (2020.08); A61L 2209/111 (2013.01); A61L 2209/12 (2013.01); A61L 2209/14 (2013.01); A61L 2209/22 (2013.01); B01D 2255/802 (2013.01); B01D 2259/804 (2013.01); B01D 2259/818 (2013.01); B01D 2279/65 (2013.01); G01N 15/075 (2024.01)] | 20 Claims |
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1. A miniature gas detection and purification device, comprising:
a main body for a user to carry with him, comprising at least one inlet, at least one outlet, a detecting inlet, a detecting outlet and a gas-flow channel, wherein the gas-flow channel is disposed between the at least one inlet and the at least one outlet;
a purification module disposed in the gas-flow channel of the main body;
a gas guider disposed in the gas-flow channel of the main body and located at a side of the purification module, wherein gas is inhaled by the gas guider through the at least one inlet, flows through the purification module for filtration and/or purification, and is discharged out through the at least one outlet;
a gas detection module disposed in the main body, spatially corresponding to the detecting inlet and the detecting outlet for detecting gas to obtain a gas detection datum, and comprising a gas detection main part, a microprocessor and a communicator, wherein the gas detection main part detects the gas introduced from the outside of the main body to obtain the gas detection datum, the microprocessor receives the gas detection datum to calculate, process and control the enablement and disablement of the gas guider, the communicator receives the gas detection datum from the microprocessor and externally transmits the gas detection datum to an external device, so as to allow the external device to obtain an information and an alarm indication in regard to the gas detection datum, wherein the external device is a mobile device, and the gas detection main part 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 recessed from the second surface and disposed adjacent to the laser loading region, wherein the gas-inlet groove comprises a gas-inlet and two lateral walls, the gas-inlet is in fluid communication with an environment outside the base, and a transparent window is opened on the two lateral walls and is in fluid communication with the laser loading region;
a gas-guiding-component loading region recessed from the second surface and in fluid communication with the gas-inlet groove, wherein a ventilation hole penetrates a bottom surface of the gas-guiding-component loading region, and the gas-guiding-component loading region has a plurality of positioning protrusions disposed at the corners thereof; and
a gas-outlet groove recessed from 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 not aligned with the gas-guiding-component loading region, wherein the gas-outlet groove is in fluid communication with the ventilation hole, and a gas-outlet is disposed in the gas-outlet groove and in fluid communication with the environment outside the base;
a piezoelectric actuator accommodated in the gas-guiding-component loading region;
a driving circuit board covered and attached to the second surface of the base;
a laser component positioned and disposed on and electrically connected to the driving circuit board, and accommodated in the laser loading region, wherein a light beam path emitted from the laser component passes through the transparent window and extends in a direction perpendicular to the gas-inlet groove;
a particulate sensor positioned and disposed on and electrically connected to the driving circuit board, and disposed at a position where the gas-inlet groove perpendicularly intersects with the light beam path of the laser component, so that suspended particles passing through the gas-inlet groove and irradiated by a projecting light beam emitted from the laser component are detected; and
an outer cover covering the first surface of the base and comprising a side plate, wherein the side plate has an inlet opening spatially corresponding to the gas-inlet and an outlet opening spatially corresponding to the gas-outlet, respectively,
wherein the first surface of the base is covered with the outer cover, and the second surface of the base is covered with the driving circuit board, so that a gas-inlet path is defined by the gas-inlet groove, and a gas-outlet path is defined by the gas-outlet groove, wherein the gas is inhaled from the environment outside the base by the piezoelectric actuator, transported into the gas-inlet path defined by the gas-inlet groove through the inlet opening, and passes through the particulate sensor to detect the concentration of the suspended particles contained in the gas, and the gas transported through the piezoelectric actuator is transported out of the gas-outlet path defined by the gas-outlet groove through the ventilation hole and then discharged through the outlet opening;
wherein the base comprises a light trapping region hollowed out from the first surface to the second surface and spatially corresponding to the laser loading region, wherein the light trapping region comprises a light trapping structure having an oblique cone surface and spatially corresponding to the light beam path, wherein a light trapping distance is maintained between the transparent window and a position where the light trapping structure receives the projecting light beam;
wherein the microprocessor controls the enablement of the gas guider according to the gas detection datum detected by the gas detection module, so that the gas is inhaled through the at least one inlet and flows through the purification module for filtration and/or purification, and the gas purified is guided to an area around user.
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