KR-20260066690-A - WASHING MACHINE

KR20260066690AKR 20260066690 AKR20260066690 AKR 20260066690AKR-20260066690-A

Abstract

A robot vacuum cleaner including a sensor collision detection device that detects a collision of the sensor is disclosed. A robot vacuum cleaner comprises a vacuum cleaner body that drives and cleans a cleaning area, a sensor case provided on the vacuum cleaner body and configured to cover a sensor that detects obstacles within the cleaning area, and a sensor collision detection device configured to detect an impact applied to the sensor. The sensor collision detection device comprises a bumper configured to move relative to the sensor case and having at least a portion positioned to correspond to the outer perimeter of the sensor, and a detection unit linked to the bumper to detect a collision with the sensor case, wherein the bumper and the detection unit are positioned below the sensor.

Inventors

나우진
이원민
윤민로
김현수
김신애

Assignees

삼성전자주식회사

Dates

Publication Date: 20260512
Application Date: 20260429

Claims (4)

Vacuum cleaner body; and A sensor unit configured to be vertically movable relative to the main body of the vacuum cleaner; comprising The above sensor unit is, A sensor configured to detect obstacles; A sensor case provided to cover the above sensor; and A sensor collision detection device configured to detect a collision between the sensor case and an obstacle when the above vacuum cleaner body is raised; The above sensor collision detection device is, A sensing unit configured to detect a collision between the sensor case and an obstacle; A sensor holder for fixing the above sensor; and A bumper is provided to be coupled with the sensor case and to move together with the sensor case to press the detection unit when the sensor case collides with an obstacle. The above bumper is a robot vacuum cleaner coupled to the sensor holder so as to be movable relative to the sensor holder to which the sensor is fixed.
In paragraph 1, The above sensor collision detection device further includes a coupling part and a coupling hole that are coupled by a fixing member provided to combine the bumper and the sensor holder, and A robot vacuum cleaner in which the coupling hole is provided in a rectangular elliptical shape so that the bumper can move horizontally relative to the sensor holder.
In paragraph 1, A robot vacuum cleaner that is coupled to the sensor holder such that the bumper has a vertical gap between the bumper and the sensor holder so that the bumper can move in the vertical direction relative to the sensor holder.
In paragraph 1, The above sensor collision detection device further includes a coupling part and a coupling hole that are coupled by a fixing member provided to combine the bumper and the sensor holder, and A robot vacuum cleaner in which the above bumper is movable in the horizontal direction on the above sensor holder, and the width of the above coupling hole in the horizontal direction is greater than the width of the above coupling part in the horizontal direction.

Description

Robot Vacuum Cleaner {WASHING MACHINE} The disclosed invention relates to a robot vacuum cleaner, and more specifically, to a robot vacuum cleaner comprising a sensor collision detection device that detects a collision of a sensor. A robot vacuum cleaner is a device that cleans dust and debris accumulated on the floor while driving through a cleaning area without user operation. A robot vacuum cleaner can clean the cleaning area thoroughly by controlling the drive unit and efficiently remove dust and debris by controlling the cleaning unit. Generally, robot vacuum cleaners detect the distance to obstacles such as furniture, office supplies, and walls installed within the cleaning area through various sensors, and use the detected information to map the cleaning zone or perform motions such as obstacle avoidance through drive unit control. It utilizes a method that predicts the movement distance of a robot vacuum cleaner and, based on this, calculates and recognizes the distance to obstacles. Recently, there has been an increase in cleaning robots equipped with sensors that monitor the ceiling or floor, which predict the distance to obstacles and navigate based on this. In addition, various sensor units (Lidar) utilizing this underlying technology are being developed and provided. The method of measuring the distance traveled by a robot vacuum cleaner using sensors that monitor the ceiling or floor, and calculating the distance to obstacles based on this, has a problem in that collisions with obstacles occur and errors in the installed sensors are caused when the robot vacuum cleaner's travel distance cannot be accurately measured due to floor irregularities or other factors. FIG. 1 is a schematic perspective view illustrating a robot vacuum cleaner according to one embodiment. Figure 2 is a perspective view showing the bottom surface of the robot vacuum cleaner illustrated in Figure 1. Figure 3 is a disassembled view of the sensor unit of the robot vacuum cleaner shown in Figure 1. Fig. 4 is a side view of the sensor unit of Fig. 3 seen from the side. FIG. 5 is a perspective view showing a sensor unit equipped with a sensor collision detection device according to one embodiment. FIG. 6 is an exploded perspective view showing a sensor unit equipped with a sensor collision detection device illustrated in FIG. 5. FIG. 7 is an exploded perspective view showing a sensor unit equipped with the sensor collision detection device illustrated in FIG. 5 from the bottom view. FIG. 8 is a cross-sectional view of the A-A' portion of the sensor collision detection device of the sensor unit shown in FIG. 5. FIG. 9 is a partial perspective cross-sectional view showing a sensor collision detection device according to one embodiment. Figure 10 is an enlarged view of part B of Figure 8. FIG. 11 is a drawing showing the state before operation of a sensor collision detection device according to one embodiment. FIG. 12 is a diagram showing the state of a sensor collision detection device at the time of a frontal collision of a sensor unit according to one embodiment. FIG. 13 is a diagram showing the state of a sensor collision detection device when a left collision occurs with a sensor unit according to one embodiment. FIG. 14 is a diagram showing the state of a sensor collision detection device when a right collision occurs with a sensor unit according to one embodiment. FIG. 15 is a perspective view showing a sensor unit equipped with a sensor collision detection device according to one embodiment. FIG. 16 is an exploded perspective view showing a sensor unit equipped with a sensor collision detection device illustrated in FIG. 15. FIG. 17 is an exploded perspective view showing a sensor unit equipped with the sensor collision detection device illustrated in FIG. 15 from the bottom. FIG. 18 is a cross-sectional view of the B-B' section of the sensor collision detection device shown in FIG. 15. FIG. 19 is a drawing showing a sensor unit equipped with an illustrated sensor collision detection device. FIG. 20 is a partial cross-sectional view schematically showing the detection part of the sensor collision detection device illustrated in FIG. 15. FIG. 21 is a cross-sectional view of the C-C' portion of the sensor collision detection device shown in FIG. 15. The embodiments described in this specification and the configurations illustrated in the drawings are merely preferred examples of the disclosed invention, and various modifications that may replace the embodiments and drawings of this specification may exist at the time of filing this application. Additionally, the same reference numerals or symbols presented in each drawing of this specification represent parts or components that perform substantially the same function. Furthermore, the terms used in this specification are for describing embodiments and are not intended to limit or/or restrict the disclosed invention. Singular expressions include plural expressions unless th