KR100619797B1 - Robot cleaner able to clean the corner of a wall - Google Patents

Abstract

The present invention relates to a robot cleaner capable of cleaning corners, the body case is capable of autonomous driving, and a suction head is formed on the lower side to suck foreign matter from the bottom; A wall surface distance sensor formed on a side of the main body case and detecting whether the main body case approaches a wall; A roll brush which protrudes laterally on one lower side of the main body case and rotates the foreign substances placed in the corners of the wall to the suction head; And control means for rotating the roll brush only when the wall distance sensor detects the approach of the main body case and the wall, and the suction head is installed to be inclined in the direction in which the roll brush is installed. It is configured to easily suck out the foreign substances sweeping out of the corner by the rotation of the roll brush.The roll brush is rotated when the cleaner runs along the wall, and is attached to the bottom of the corner as well as the dirt or dirt present in the corner. By removing dust or dirt as well as sweeping toward the suction head, the suction head can be easily sucked, thereby making the corners clean.

Description

ROBOT CLEANER ABLE TO CLEAN THE CORNER OF A WALL}

1 is a front view of the robot cleaner capable of cleaning the corner according to an embodiment of the present invention.

2 is a longitudinal cross-sectional view of FIG.

3 is a bottom view of FIG. 1.

4 is a perspective view showing an inner configuration of the roll brush of Figure 2 is installed.

5 is a plan view schematically illustrating a cleaning state of the robot cleaner of FIG. 1.

Explanation of symbols on the main parts of the drawings

1: body case 2: fan motor

6 suction head 51 motor

52: roll brush 73: wall detection sensor

74: wall

The present invention relates to a robot cleaner, and more particularly, to a robot cleaner capable of cleaning corners that can clean dust and dirt attached to the corner portion of the lower side of the wall at the time of cleaning.

The robot cleaner detects the cleaning area using the sensor by the command of the control means, runs the cleaning area and cleans automatically, and when the power of the battery provided inside the device is exhausted, It is a self-driving robot that moves to the charging station provided in the charging unit and charges, and returns to the original position where the cleaning is completed after the charging is completed.

In addition, a fan motor and a filter are provided inside the robot cleaner, and a suction head for suctioning dust or dirt from the bottom is provided at the bottom of the robot cleaner, and a predetermined interval is provided around the suction head to drive the robot cleaner. It is provided with a main wheel driven by a motor, and a plurality of auxiliary wheels that are supported and rotated so as to maintain a balance between the cleaner running by the main wheel.

That is, the driving is performed by the rotation of the main wheel driven by the motor as described above, the dust or dirt at the bottom is sucked through the suction head by the suction force of the fan motor in the driving state, and collected in the filter. Lose.

However, the suction head of the conventional robot cleaner is fixed to the bottom of the cleaner, and even if the cleaner moves along the wall, the cleaner may not clean the dust or dirt in the lower corner of the wall. have.

Furthermore, wall cleaning is only a part of the overall cleaning process, so such wall cleaning process is more economical and may be useful to reduce noise only when the robot cleaner is close to the wall.

       In view of the problems and considerations described above, the present invention is to remove the dust and dirt attached to the floor when the robot cleaner to clean the lower corner of the wall so that the lower corner of the wall can be cleaned cleanly The object is to provide a robot cleaner capable of cleaning the corner.

In addition, the present invention is a robot capable of cleaning the corners that can be reduced economically and noise reduction as the corner cleaning process is performed intermittently only when the robot cleaner is close to the actual wall so that the corner cleaning is not performed in the entire cleaning process. Another purpose is to provide a cleaner.

In order to achieve the object of the present invention as described above, the robot cleaner capable of cleaning the corner according to the present invention is capable of autonomous driving, the body case is formed with a suction head for suctioning foreign substances on the bottom; A wall surface distance sensor formed on a side of the main body case and detecting whether the main body case approaches a wall; A roll brush which protrudes laterally on one lower side of the main body case and rotates the foreign substances placed in the corners of the wall to the suction head; And control means for rotating the roll brush only when the wall distance sensor detects the approach of the main body case and the wall, and the suction head is installed to be inclined in the direction in which the roll brush is installed. The foreign material sweeping out of the corner by the rotation of the roll brush is configured to be easily sucked.

Hereinafter, a robot cleaner capable of cleaning corners according to an exemplary embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a front view of a robot cleaner capable of cleaning a corner according to an exemplary embodiment of the present invention, FIG. 2 is a longitudinal cross-sectional view of FIG. 1, FIG. 3 is a bottom view of FIG. 1, and FIG. 4 is an inner side in which a roll brush is installed. A perspective view showing the configuration.

As shown in these drawings, the corner cleaner capable of cleaning the corner according to the present invention is a main body case (1) formed with a suction head (6) capable of autonomous driving and suctioning foreign substances on the bottom side, the main body Is formed on the side of the case (1) and the wall surface distance sensor (73) for detecting the proximity of the main body case 1 to the wall surface 74, and protruding laterally formed on one side of the lower part of the main body case (1) The roll brush 52, which rotates and sweeps foreign matters placed in the corners of the wall surface toward the suction head 6, and the roll distance 52, only when the wall distance sensor 73 detects the approach of the main body case 1 and the wall 74. And control means (not shown) for controlling the brush 52 to rotate.

The suction head 6 is opened at a lower side thereof, and an opening 6a is formed, and the suction head 6 is arranged to be partially biased at a center in the horizontal direction so that one end portion protrudes outwardly from the main body case 1.

One side of the main body case 1 is fixed to the bracket 53 formed on the inner surface of the case 1 so that the motor 51 is directed downward, the bottom of the corner on the motor shaft of the motor 51. The roll brush 52 which is rotated in the horizontal direction to remove the dust or foreign matter attached to it is installed to protrude outward through the through hole 54 formed in the case 1.

The wall distance sensor 73 is formed on one side of the main body case 1 detects the distance between the main body case 1 and the wall surface 74 and transmits the distance to the control means. As the wall distance detecting sensor 73, a sensor for detecting a conventional distance, for example, a sensor using ultrasonic waves or infrared rays may be used.

A pair of main wheels 9 driven by the motor 11 are provided at a lower side of the main body case 1 at regular intervals, and a main body case (front and rear sides of the main wheels 9) is provided. Several auxiliary wheels 10 are installed to support 1) and to maintain horizontality.

In addition, a battery 21 for charging and discharging is installed inside the Bonke case 1, and a charging terminal 23 having a charging terminal 22 is provided at a rear side thereof, and an indoor wall 74 is provided. The connection terminal 26 is installed in the power supply terminal portion 25 provided at the power supply unit 25. The charging of the battery 21 installed inside the main body case 1 is performed while the charging terminal 22 is connected to the connection terminal 26. It is to be accomplished.

In addition, an ultrasonic transmitting unit 31 for transmitting ultrasonic waves is provided inside the front center of the main body case 1, and ultrasonic waves transmitted from the ultrasonic transmitting unit 31 are disposed on the upper and lower sides of the ultrasonic transmitting unit 31 at an obstacle. An ultrasonic receiver 32 is installed to detect the reflection.

In addition, a light emitting unit 41 is disposed below the power terminal unit 25 to emit an optical signal for guiding the main body case 1 of the cleaner to the power terminal unit 25. On the lower side, a light receiving portion 42 capable of receiving an optical signal emitted from the light emitting portion 41 is provided.

In the drawing, reference numeral 71 denotes an exhaust port.

Now, the operation of the robot cleaner capable of cleaning the corners according to an exemplary embodiment of the present invention will be described with reference to FIG. 5 (and FIGS. 1 to 4).

5 is a schematic plan view for describing a cleaning state of the robot cleaner of FIG. 1.

In the robot cleaner 100 capable of cleaning the corner according to the present invention, when the user presses an operation button, the robot cleaner 100 travels along the cleaning area according to the set pattern. In this driving process, the fan motor 2 is driven by the control of the control means, and air suction force is generated accordingly, so that foreign matter, that is, dust or dirt, is sucked into the suction head 6 through the opening 6a. It is collected on the filter (3) through a connecting pipe (5).

In addition, when the robot cleaner 100 is cleaned as described above, when the robot cleaner 100 travels along the wall 74 as shown in FIG. 5, the wall distance sensor 73 closes the proximity between the body case 1 and the wall 74. As sensed and transmitted to the control means, the control means drives the motor 51 to rotate the roll brush 52. As a result, the roll brush 52 rotates to remove dust or foreign matter adhering to the bottom of the corner of the wall 74 and to sweep it to the position where the suction head 6 passes, and the dust or dirt thus swept away. The filter 3 is collected by the suction head 6.

Accordingly, the foreign matter placed in the corner of the wall surface 74, which was limited only by the suction force through the suction head 6, is cleaned with the help of the roll brush 52.

Further, the rotation of the roll brush 52 as described above is not performed throughout the entire cleaning process, and only when the wall distance detecting sensor 73 detects that the main body case 1 is close to the wall 74 and transmits it to the control means. Intermittent by the control means. As a result, the roll brush 52 rotates only when cleaning the corners of the wall surface 74 without rotating throughout the entire cleaning process, so there is no waste of power due to unnecessary motor 51 driving and economical Noise caused by driving is also not generated.

Further, since the opening 6a of the suction head 6 is formed to be biased toward the roll brush 52 side, the opening 6a of the suction head 6 does not have to extend toward both sides of the main body case 1. In the case where the opening 6a of the suction head 6 is extended toward both sides of the main body case 1, the opening 6a may become too large and the air suction force due to the rotation of the fan motor 2 may be weakened. Therefore, in order to prevent the weakening of the suction force through the opening 6a and to effectively suck out the foreign substances swept out of the corners by the roll brush 52, it is useful to configure the position of the opening 6a to be biased toward the roll brush 52 side. Able to know.

As described in detail above, the corner cleaner can be cleaned in accordance with the present invention, the roll brush is installed on one side of the main body case, the roll brush is rotated and attached to the bottom of the corner when the robot cleaner runs along the wall surface By removing the dust and dirt from the dirt and sweeping it toward the suction head, the cleaner cleans not only the dirt or dirt in the corners as it runs along the wall, but also the dirt or dirt on the bottom of the corners. There is an effect of cleaning.

In addition, in the robot cleaner capable of cleaning corners according to the present invention, the roll brush is operated only when the robot cleaner is close to the wall by the wall distance sensor and the control means, thereby minimizing power consumption and suppressing the occurrence of unnecessary noise. .

Furthermore, since the suction head is disposed to be inclined toward the roll brush side, the suction force through the suction head is not lowered, and the foreign substances in the corners swept away by the roll brush can be easily collected.

Claims (3)

A main body case capable of autonomous driving and having a suction head configured to suck foreign substances at the bottom thereof; A wall surface distance sensor formed on a side of the main body case and detecting whether the main body case approaches a wall; A roll brush which protrudes laterally on one lower side of the main body case and rotates the foreign substances placed in the corners of the wall to the suction head; And control means for rotating the roll brush only when the wall distance sensor detects an approach of the main body case and the wall surface. The suction head is installed to be biased in the direction in which the roll brush is installed, the robot cleaner, characterized in that configured to be easily sucked foreign matter sweeping out of the corner by the rotation of the roll brush. delete The method of claim 1, The roll brush is a robot cleaner capable of cleaning the corner is arranged to rotate in the horizontal direction.

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