公开(公告)号：US20190038100A1

公开(公告)日：2019-02-07

申请号：US16073221

申请日：2017-01-25

Applicant: Samsung Electronics Co., Ltd

Inventor： Seon Gu LEE ,  Gi Hyeong LEE ,  Jae Shik JEONG ,  Yoon Kyunh CHO ,  Ah Young LEE

IPC: A47L9/28 ,  A47L5/14 ,  A47L5/26 ,  A47L5/22

Abstract: A vacuum cleaner includes a fan motor configured to generate suction, an input button configured to receive an input of a user, a first power supply circuit configured to convert alternating current (AC) power supplied from an external power source and output first direct current (DC) power, a second power supply circuit configured to store electric energy upon receiving the first DC power, and output second DC power based on the stored electric energy, a driver circuit configured to drive the fan motor upon receiving at least one of the first DC power and the second DC power, a first semiconductor switching circuit configured to control the first DC power supplied to the second power supply circuit, a second semiconductor switching circuit configured to control the first DC power and the second DC power that are supplied to the driver circuit, and a microprocessor configured to output a control signal for turning on or off the first semiconductor switching circuit and the second semiconductor switching circuit depending on the user input and a connection state of the external power source.

公开(公告)号：US20200077856A1

公开(公告)日：2020-03-12

申请号：US16462704

申请日：2017-11-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tae Gwang KIM ,  Jae Shik JEONG ,  Dong Hyun LEE ,  Won Kyu LIM

IPC: A47L9/28 ,  A47L9/22 ,  A47L5/24 ,  A47L9/10

Abstract: A cleaning apparatus comprises a cleaner module provided with a module mounting portion, a wireless cleaning module removably mounted to the cleaner module, and a wired cleaning module provided with a canister, a connection hose connected from the canister to the cleaner, and a connector provided in the connection hose to be removably mounted to the cleaner module. A wired cleaning mode using the wired cleaning module and a wireless cleaning mode using the wireless cleaning module are selectively operated by mounting one of the connector of the wired cleaning module and the wireless cleaning module, to the module mounting portion.