公开(公告)号：US20250025008A1

公开(公告)日：2025-01-23

申请号：US18778557

申请日：2024-07-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seongu LEE ,  Soohoon KIM ,  Juhan SEON ,  Ahyoung LEE ,  Yeongju LEE ,  Jaeshik JEONG ,  Yoonkyung CHO

IPC: A47L9/28 ,  A47L9/00 ,  A47L9/14 ,  H03K5/1536

Abstract: Provided is a station device configured to detect a first zero crossing point (ZCP) and a second ZCP with respect to an alternating current (AC) input voltage, by using a ZCP circuit configured to detect a ZCP of the AC input voltage applied to the station device, obtain information about a pulse width from the first ZCP to the second ZCP, identify whether the AC input voltage is in an overvoltage state, based on the information about the pulse width from the first ZCP to the second ZCP, and deactivate an operation of the suction motor, when the AC input voltage is in the overvoltage state. Where detecting the first ZCP and the second ZCP includes detecting voltage points which are offset from 0 V by a preset value in the AC input voltage.

公开(公告)号：US20250064278A1

公开(公告)日：2025-02-27

申请号：US18674070

申请日：2024-05-24

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yoonkyung CHO ,  Soohoon KIM ,  Juhan SEON ,  Seongu LEE ,  Ahyoung LEE ,  Yeongju LEE ,  Jaeshik JEONG

IPC: A47L7/00 ,  A47L11/40

Abstract: A vacuum cleaner includes a cleaner main body including a battery, and a wet mop brush driven by power supplied from the battery. The wet mop brush may include at least one mop pad provided on a bottom of a brush body to contact a surface to be cleaned, a motor configured to rotate the at least one mop pad, a heater configured to heat water supplied from a water tank to a heating tank, a sprayer configured to spray the water heated by the heater toward the surface to be cleaned, a pump configured to provide pressure for moving the water from the water tank to the sprayer, and a processor configured to adjust an amount of power supplied to at least one of the motor, the heater, or the pump based on a first current threshold available in the wet mop brush.