INDOOR AIR POLLUTION PREVENTION SYSTEM

    公开(公告)号:US20250035334A1

    公开(公告)日:2025-01-30

    申请号:US18616661

    申请日:2024-03-26

    Abstract: An indoor air pollution prevention system is disclosed and includes an indoor field unit, an outdoor field unit, a gas exchange device, plural gas detectors and a cloud computing service device. Arranging the plural gas detectors in indoor and outdoor field units to detect air pollutions, and output air pollution data. An intake filter device is disposed in an intake channel of the gas exchange device and an exhaust filter device is disposed in an exhaust channel of the gas exchange device. The cloud computing service device receives and stores the air pollution data detected in the indoor and the outdoor field units, determines the location of the air pollution, and issues a control command to the intake filter device and the exhaust filter device to enable them to exchange the air. A directional airflow in the indoor field unit is generated to guide the air pollution to be filtered.

    Method for notifying service life of filter

    公开(公告)号:US12186695B2

    公开(公告)日:2025-01-07

    申请号:US17648948

    申请日:2022-01-26

    Abstract: A method for notifying a service life of a filter includes steps of providing a filter for filtering an air pollution source; providing a gas detection device for detecting the air pollution source and outputting the detection data of the air pollution source; providing a 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 a reducing rate of filtering efficiency for the filter; and when the reducing rate of filtering efficiency for the filter reaches a preset alert value, the connection device sends out a notification alert of replacing the filter.

    RANGE HOOD
    155.
    发明公开
    RANGE HOOD 审中-公开

    公开(公告)号:US20240344713A1

    公开(公告)日:2024-10-17

    申请号:US18589643

    申请日:2024-02-28

    CPC classification number: F24C15/2042 F24C15/2021

    Abstract: A range hood is disclosed and includes a main body, an air guiding fan, a filtering component, and a controller. The main body is configured to form an airflow path. The air guiding fan is disposed in the airflow path and is operated to guide an air convection with an extraction rate over 22 m3/min. The filtering component is disposed in the airflow path and filters an air pollution in the air convection guided by the air guiding fan. The networking controller receives a control command through wireless communication to perform an activation operation of the air guiding fan.

    Printer driving system
    159.
    发明授权

    公开(公告)号:US12023922B2

    公开(公告)日:2024-07-02

    申请号:US17568024

    申请日:2022-01-04

    CPC classification number: B41J2/04541 B41J2/04586

    Abstract: A printer driving system includes a printer driving control circuit arranged on an ink cassette carrying device of a printer, an inkjet print head cassette arranged on a supporting base of the ink cassette carrying device, and a connection port. The printer driving control circuit includes a driving signal coding chip connected to a bus wire. The inkjet print head cassette includes a driving signal decoding chip and an inkjet print head chip. The driving signal decoding chip is connected to the driving signal coding chip through the bus wire. The connection port is arranged on the bus wire connected between the driving signal coding chip and the driving signal decoding chip. The inkjet print head cassette is detachably arranged on the supporting base of the ink cassette carrying device of the printer through the connection port.

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