公开(公告)号：US20220184820A1

公开(公告)日：2022-06-16

申请号：US17685492

申请日：2022-03-03

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yonghun KANG ,  Kyungshik ROH ,  Sangjun JUNG

IPC: B25J18/02 ,  H02K7/14 ,  H02K7/116 ,  H05K1/02 ,  B25J9/10

Abstract: Disclosed is a robot including a variable length unit coupled to one section of at least one arm unit, wherein the variable length unit may include a motor, a first cam having at least one slit having a specific inclination in one area thereof, and a second cam, at least a portion of which is disposed in an interior of the first cam, and having at least one first boss that passes through the at least one slit of the first cam, wherein the first cam may be rotated through driving of the motor, the second cam may be linearly moved while the at least one first boss is guided by the at least one slit in correspondence to rotation of the first cam, and a length of the at least one arm unit may vary in correspondence to linear motion of the second cam.

公开(公告)号：US20210237861A1

公开(公告)日：2021-08-05

申请号：US17049920

申请日：2019-04-16

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yonghun KANG ,  Junho PARK ,  Seunghwan JUNG ,  Soosang YANG ,  Sangjun JUNG

IPC: B64C27/00 ,  B64C39/02 ,  B64C21/04

Abstract: An unmanned aerial vehicle according to the present invention may comprise: a rotor-blade for providing thrust according to generation of main stream; and a safety guard disposed to surround the rotor-blade. The safety guard may comprise: a guide member which is disposed coaxially with the rotor-blade while having a gap between the guard member and the end of the rotor-blade, so as to stabilize, when the rotor-blade rotates, a flow field suctioned by a negative pressure, and stably boost a discharge flow when the pressure is changed to a positive pressure; and a diffuser which is disposed coaxially with and radially spaced apart from the guide member, and generates a secondary flow toward the main stream to increase a flow rate.