Air purifier for preventing air pollution

Patent metadata

Field	Value
Publication number	US-12435899-B2
Application number	US-202217715456-A
Country	US
Kind code	B2
Filing date	Apr 7, 2022
Priority date	Jan 24, 2022
Publication date	Oct 7, 2025
Grant date	Oct 7, 2025

Abstract

An air purifier for preventing air pollution is disclosed and includes a main body, a gas guider, a filtration and purification component and at least one gas detection module. The main body is configured to form a diversion path. The gas guider is disposed in the diversion path for guiding an air convection. The filtration and purification component is disposed in the diversion path for filtering and purifying an air pollution source contained in the air convection guided by the gas guider. The at least one gas detection module is disposed in the diversion path for detecting the air pollution source and transmitting a gas detection datum.

First claim

What is claimed is:

1. A system comprising: an air purifier for preventing air pollution, comprising:
a main body configured to form a diversion path;
a gas guider disposed in the diversion path for guiding an air convection;
a filtration and purification component disposed in the diversion path for filtering and purifying an air pollution source contained in the air convection guided by the gas guider;
at least one gas detection module disposed in the diversion path, located downstream of the filtration and purification component, and configured for detecting the air pollution source of the filtered air and transmitting a gas detection datum, and
a microcontroller for receiving the gas detection datum of the at least one gas detection module through a wireless communication transmission, and intelligently comparing the gas detection datum under a surveillance status, so as to issue a driving instruction for controlling an enablement of the gas guider and adjusting a guiding air-flow volume;
wherein the microcontroller performs a two-way communication transmission to a pollution processing system through the wireless communication transmission, wherein the gas detection datum detected by the at least one gas detection module of the air purifier is transmitted to the pollution processing system, and information transmitted from the pollution processing system is received by the microcontroller, so as to issue the driving instruction for controlling the enablement of the gas guider and adjusting the guiding air-flow volume;
wherein the pollution processing system comprises:
at least one outdoor gas detection module and at least one indoor gas detection module, wherein the at least one outdoor gas detection module is disposed in an outdoor space to detect the air pollution source in the outdoor space and transmit an outdoor gas detection datum, and the at least one indoor gas detection module is disposed in an indoor space to detect the air pollution source in the indoor space and transmit the indoor gas detection datum;
at least one gas-exchanging processing device for controlling the introduction of an outdoor gas into the indoor space, so as to exchange and filter the air pollution source in the indoor space;
at least one indoor cleaning and filtration device enabled to filter and exchange the air pollution source in the indoor space; and
an intelligent control-driving processing device, wherein after the intelligent control-driving processing device receives and compares the outdoor gas detection datum and the indoor gas detection datum, the intelligent control-driving processing device intelligently and selectively controls the introduction of the outdoor gas by at least one gas-exchange processing device, and the at least one intelligent control-driving processing device controls the enablement of at least one indoor cleaning and filtration device in real time, therefore the air pollution source in the indoor space passes through the at least one indoor cleaning and filtration device, so as to allow the air pollution source in the indoor space to be filtered and exchanged and become a fresh air;

wherein the at least one indoor gas detection module includes at least three indoor gas detection modules, wherein the intelligent control-driving processing device receives and compares the indoor gas detection data outputted by the at least three indoor gas detection modules under the calculation of artificial intelligence, so as to find the location of the air pollution source in the indoor space, and intelligently select and control to enable the gas-exchanging processing device or the indoor cleaning and filtration device adjacent to the air pollution source, so as to accelerate the guiding operation of the air pollution source and keep the air pollution source without diffusion.

2. The system according to claim 1 , wherein the air pollution source is at least one selected from the group consisting of particulate matter, carbon monoxide, carbon dioxide, ozone, sulfur dioxide, nitrogen dioxide, lead, total volatile organic compounds (TVOC), formaldehyde, bacteria, fungi, virus and a combination thereof.

3. The system according to claim 1 , wherein the air purifier has a clean air delivery rate (CADR) ranging from 800 m3/h to 1000 m3/h.

4. The system according to claim 1 , wherein the surveillance status is activated as the gas detection datum of the air pollution source detected by the gas detection module exceeds a safety detection value, wherein the safety detection value includes at least one selected from the group consisting of a concentration of PM2.5 which is less than 35 μg/m3, a concentration of carbon dioxide which is less than 1000 ppm, a concentration of total volatile organic compounds which is less than 0.56 ppm, a concentration of formaldehyde which is less than 0.08 ppm, a colony-forming unit of bacteria which is less than 1500 CFU/m3, a colony-forming unit of fungi which is less than 1000 CFU/m3, a concentration of sulfur dioxide which is less than 0.075 ppm, a concentration of nitrogen dioxide which is less than 0.1 ppm, a concentration of carbon monoxide which is less than 9 ppm, a concentration of ozone which is less than 0.06 ppm, and a concentration of lead which is less than 0.15 μg/m3.

5. The system according to claim 1 , wherein the gas detection module comprises a controlling circuit board, a gas detection main part, a microprocessor and a communicator, and the gas detection main part, the microprocessor and the communicator are integrally packaged on the controlling circuit board and electrically connected to the controlling circuit board, wherein the microprocessor controls the detection of the gas detection main part, the gas detection main part detects the air pollution source and outputs a detection signal, and the microprocessor receives the detection signal for calculating, processing and outputting, so that the microprocessor of the gas detection module generates the gas detection datum and provides to the communicator for external communication transmission.

6. The system according to claim 5 , wherein 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 concavely formed 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 communication with an environment outside the base, and a transparent window is opened on the two lateral walls and is 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, wherein a ventilation hole penetrates a bottom surface of the gas-guiding-component loading region; and
a gas-outlet groove concavely formed 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 communication with the ventilation hole, and a gas-outlet is disposed in the gas-outlet groove;

a piezoelectric actuator accommodated in the gas-guiding-component loading region;
a driving circuit board covering and attached to the second surface of the base;
a laser component positioned and disposed on the driving circuit board, 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

Assignees

• Microjet Technology Co Ltd

Inventors

• Mou Hao-Jan
• Han Yung-Lung
• Huang Chi-Feng

Classifications

• F24F8/95

  specially adapted for specific purposes · CPC title

• F24F11/88

  Electrical aspects, e.g. circuits · CPC title

• F24F11/63

  Electronic processing · CPC title

• F24F2110/64

  Airborne particle content · CPC title

• F24F8/80 Primary

  Self-contained air purifiers · CPC title