KR20080058856A - Suction assembly of robot cleaner - Google Patents

Abstract

A suction unit of a robot cleaner is provided to maintain clean state of the robot cleaner by suppressing dust collected inside the robot cleaner from escaping when removing a dust collecting box, since the dust collecting box is exposed to a lower surface of the robot cleaner. A suction unit of a robot cleaner which travels along a predetermined path guided by a sensor to allow a brush assembly to rotate making friction with a surface to be cleaned for collecting dust into the suction unit installed on a rear side of the robot cleaner, the suction unit comprises a dust collecting box(10), a filter unit(20), and a suction duct assembly. The dust collecting box is installed to a rear side of the brush assembly, and comprises a first path(11) and a second path(12) that are divided by a partition plate(13), wherein the first path comprises a guide member(40) to allow dust to be guided and collected in the first path, and an extension member(50) to allow dust remaining on the surface to be cleaned to be sucked. The filter unit is communicated with the rear side of the dust collecting box. The suction duct assembly is communicated with the filter, and configured to suck air to allow dust on a surface to be cleaned to enter the dust collecting box therethrough.

Description

Suction Assembly of Robot Cleaner

1 is a view showing a general robot cleaner.

2 is a cross-sectional view of FIG.

Figure 3 is an exploded perspective view of the robot cleaner according to the present invention.

4 is a cross-sectional view of the dust collecting box according to the present invention.

5 and 6 are a front perspective view and a rear perspective view showing a state in which the dust collecting box and the filter unit in accordance with the present invention.

7 is an assembled perspective view of the filter unit.

<Description of the symbols for the main parts of the drawings>

10: dust box 11: the first euro part

11a: inlet 11b: the first depression

12: second euro portion 12b: second depression

13: blocking plate 14: step

20: filter portion 21: filter

22: filter case 30: suction duct assembly

31: suction motor 32: suction duct

40: guide member 50: extension member

100: reducer 110: brush

111 brush head 120 brush motor

200: Brush Assembly

The present invention relates to a dust or foreign material suction structure of the robot cleaner, and more particularly, the first recessed part and the second recessed part to form a space in which a blocking plate is formed to separate and partition the first flow path part and the second flow path part. As the space of the recess is further increased, the dust or foreign matter that is introduced can be stably collected and removed, and since the dust box is exposed to the bottom of the robot cleaner, no dust is leaked to the robot cleaner when the dust box is removed. It relates to a dust collecting assembly of the robot cleaner that can maintain the clean state of the robot cleaner.

In general, the robot cleaner cleans the room according to the detection of a built-in sensor without direct control of a user. An obstacle detection sensor consisting of an infrared sensor installed inside the main body and a mileage detection sensor for measuring a mileage and a position are generally used. After determining the area to be cleaned by driving the outside of the cleaning area surrounded by walls or obstacles, plan a cleaning path for cleaning the determined cleaning area, and through the sensor to detect the rotational speed and the rotation angle of the wheel during the cleaning process. Drive the planned cleaning route while calculating the travel distance and the current position from the detected signal.

Robotic cleaners as described above typically include a suction unit including a dust suction port, a rotary brush, and the like, a sensor unit including an obstacle detection sensor, a mileage detection sensor for measuring a mileage, a position, and the like, a driving roller on both sides, and a front and rear And a control unit for controlling the driving unit, the suction unit, the sensor unit, and the driving unit, each of which includes a surface turning roller.

1 is a view showing a general robot cleaner, Figure 2 is a cross-sectional view of FIG.

Referring to the drawings, the robot cleaner is configured in a disk shape for smooth avoidance of walls or obstacles during the indoor cleaning process, and for smooth change of direction during the cleaning process.

The robot cleaner 1 is provided with driving rollers on both sides of the lower part, and is provided with a turning roller at the lower part of the front and rear surfaces orthogonal to the driving rollers on both sides, thereby moving forward and backward according to the forward and reverse rotation of the driving roller. And left and right movement according to the forward and reverse rotation of the direction change roller, while the moving direction is changed by the combination of the driving roller and the direction change roller as described above. It is settled in this dust collecting box to enable the cleaning of the room.

The dust or foreign matter suction structure of the robot cleaner 1 is configured to rotate and rub the cleaning bottom surface by the operation of the brush assembly 2 and to suck the dust or foreign matter that flows through the suction part 3.

Here, the dust collecting part 3 is connected to the dust collecting box 4 and the rear part of the dust collecting box 4 is temporarily stored by the inflow of dust or foreign matter filter unit 5 and the filter unit ( It is made of a suction duct assembly in communication with 5) to generate air flow so that dust or foreign matter can enter the dust collecting box (4) and the filter unit (5).

Here, the dust collecting box 4 is formed of a first inlet 4a and a second inlet 4b as shown in FIG. 2, and is configured to suction dust or foreign matters dually, but is introduced into the first inlet 4a. There is a problem that the foreign matter and dust having a high specific gravity block the second inlet 4b.

In addition, the dust collected in the second inlet 4b or the first inlet 4a is likely to leak when the dust is temporarily removed in the dust collecting box 4 to remove or remove foreign substances. As it remains in the robot cleaner, the cleanliness of the robot cleaner is poor and the main components of the robot cleaner are damaged.

In order to solve the above problems, the present invention provides a space between the first recessed part and the second recessed part which forms a space in which a blocking plate is formed and separates the first channel part and the second channel part. By increasing and forming, dust or foreign substances that are introduced can be stably collected and removed, and since the dust box is exposed to the bottom of the robot cleaner, no dust is leaked to the robot cleaner when the dust box is removed. The purpose is to provide a vacuum assembly of the robot cleaner that can maintain the.

The present invention has the following features to achieve the above object.

The present invention is configured to run by setting the path in accordance with the detection of the built-in sensor and is configured to collect dust or dirt in the room is disposed in the rear spaced apart from the rear as the brush assembly installed in the bottom portion is rotated friction on the cleaning floor surface In the robot cleaner, The dust collecting unit and the dust collecting box disposed at a predetermined interval behind the brush assembly; A filter unit communicatively coupled to the rear of the dust collecting box; And a suction duct assembly which is in communication with the filter unit and sucks air so that dust or foreign matter can be sucked into the dust collecting box from the cleaning bottom surface, wherein the dust collecting box is formed by the blocking plate. And a second flow path portion, and a guide member is coupled to the lower end of the first flow path so that foreign matter or dust is guided and collected and transferred to the first flow path, and the lower end of the second flow path is not sucked through the brush assembly. An extension member is coupled to extend the suction path to the bottom so that residual foreign matter can be suctioned secondarily.

Here, the first channel portion and the second channel portion are formed with a first recessed portion and a second recessed portion respectively forming a predetermined receiving space so that foreign matter or dust is collected, the front portion of the first recessed portion and the second recessed portion Steps are formed to prevent dust and dirt collected.

In addition, the brush assembly and the dust collecting box is installed on the bottom through surface of the robot cleaner main body is preferably exposed to the bottom surface of the robot cleaner and the bottom surface of the dust collector box.

Hereinafter, with reference to the accompanying drawings for the vacuum assembly of the robot vacuum cleaner according to the present invention will be described in detail.

Figure 3 is an exploded perspective view of the robot cleaner according to the present invention, Figure 4 is a cross-sectional view of the dust collecting box according to the present invention, Figure 5 and Figure 6 is a front perspective view showing a state in which the dust collecting box and the filter unit according to the present invention; 7 is a rear perspective view, and FIG. 7 is an assembled perspective view of the filter unit.

Referring to the drawings, the robot cleaner according to the present invention is configured to rotate and rub the cleaning floor by the operation of the brush assembly 200 and to collect and collect the dust or foreign matter flowing in the dust collecting part 100.

The robot cleaner is provided with an outer case and the brush assembly 200 and the suction part 100 are mounted inside the case, and the brush assembly 200 and the suction part 100 are exposed to the bottom of the robot cleaner and a certain portion is cleaned. It comes in close contact with the bottom surface.

Here, the brush assembly 200 is installed on the brush motor 120, the rotating shaft rotated by the brush motor 120 and the rotating shaft and rotates together, and a plurality of brush hairs 111 are combined to form a cylindrical shape. It consists of a brush (110).

The brush 110 is formed to protrude from the bottom of the robot cleaner to rotate in contact with the cleaning floor surface to separate foreign matter or dust from the bottom surface and the foreign matter or dust separated by the guide member 40 to be described later Guided to the first flow path section 10.

The brush assembly 200, the guide member 40 of the suction part 100, and the inlet part 11a of the first flow path part 11 are disposed to be spaced apart from each other at a predetermined interval so as to perform the operation of the brush assembly 200. As a matter of course, the inhalation of dust or foreign matter is performed closely.

Meanwhile, the dust collecting part 100 includes a dust collecting box 10 disposed at a predetermined interval behind the brush assembly, a filter unit 20 connected in communication with the dust collecting box 10, and the filter unit 20. It is composed of a suction duct assembly 30 is connected to the communication suction suction air so that the suction of dust or foreign matter into the dust collecting box 10 from the cleaning bottom surface.

Here, the dust collecting box 10 is provided to temporarily store foreign substances or dust flowing into the dust collecting part 100. An air flow path from the front part to the rear part inside the dust collecting box 10 for inflow into the dust collecting part 100. The suction duct assembly 30 is communicatively coupled to the rear such that the suction duct assembly 30 is formed.

In addition, the dust collecting box 10 finally receives the first flow path part 11 that primarily sucks foreign substances and dust having a relatively high specific gravity, and the remaining dust and fine dust not sucked into the first flow path part 11. It is partitioned into an incoming second flow path part 12, which is partitioned from each other by a blocking plate 13.

A guide member 40 is coupled to the lower end of the first flow path part 11 so that foreign substances and dust flowing in accordance with the rotation of the brush 110 may be guided and introduced into the first flow path part 11.

Since the guide member 40 has a certain hardness but should be in fluid contact with the cleaning bottom surface, it is preferably a rubber material. As shown in the drawing, the guide member 40 is screwed to the lower end of the first flow path part 11 or through an adhesive. It may be combined, or may be integrally formed at the time of manufacture.

In addition, the first passage 11 is formed with a first recessed portion 11b that forms a predetermined storage space to collect foreign matter or dust, the first recessed portion (11b) in front of the first recessed portion (11b) Step 14 is formed so that foreign matter or dust collected in 11b) is not discharged out.

In addition, the filter unit 20 is coupled to the rear portion of the first passage 11 to block fine dust in the air transferred to the suction duct assembly.

On the other hand, the second channel portion 12 is provided to finally suck the remaining foreign matter or fine dust that is not sucked into the first channel portion 11 to further enhance the cleaning function.

In addition, an extension member 50 is coupled to the lower end of the second passage part 12 to extend the suction path to the bottom surface to guide the dust, like the first passage part. Of course, the formed second recessed part 12b is formed in the second flow path part.

In addition, the filter unit 20 is communicatively coupled to the rear portion of the second flow path unit, and the suction duct assembly 30 for forming air flow is communicatively coupled to the rear portion of the filter unit 20 to allow suction of fine dust and the like. .

One of the great features of the dust collecting part 100 according to the present invention is a bottom surface of the second flow path part 12 and the bottom surface of the dust collecting box 10 is formed as a part of the bottom of the robot cleaner to collect a certain amount of foreign matter and dust. When removing the dust collecting box 10 to remove, there is no problem that the dust in the robot vacuum cleaner is left in the robot cleaner, and thus the parts of the robot cleaner itself can be removed and the damage of parts due to dust, etc. can be removed. .

Meanwhile, as described above, the filter unit 20 is coupled to the rear of the first channel unit 11 and the second channel unit 12, and includes a filter 21 capable of absorbing fine dust and the like, so that the fine dust is transferred to the outside. It is configured to remove the air pollution in the cleaning space by preventing the discharge.

In addition, a plurality of filter cases 22 are provided to fix and support the filter 21 and to be coupled to the dust collecting box 10.

The suction duct assembly 30 is communicatively coupled to the rear portion of the filter unit 20, and the suction duct assembly 30 sucks air to form an air flow and the suction motor 31. It consists largely of the suction duct 32 by which air is inhaled.

The air sucked into the suction duct 32 is discharged to the outside of the robot cleaner, and foreign matter, dust, etc. are sucked into the first passage 11, the second passage 12, and the filter 21 according to the air suction. It will be possible.

As described above, the present invention has been described with reference to one embodiment shown in the drawings, but this is merely exemplary, and those skilled in the art may realize various modifications and other equivalent embodiments therefrom. I will understand.

Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

As described above, the present invention further increases the space between the first recessed part and the second recessed part which forms a space in which the blocking plate is formed and can be collected to separate and partition the first channel part and the second channel part. Therefore, dust or foreign matter introduced can be stably collected and removed.

In addition, since the dust collecting box is exposed to the bottom of the robot cleaner, dust leaking to the robot cleaner does not occur when the dust collecting box is detached and maintains the clean state of the robot cleaner, and the stepped portion is provided at the front of the first recess and the second recess. Formed and collected dust or foreign matter is an effect that does not easily leak to the outside.

Claims (3)

The robot cleaner which is configured to run by setting the path according to the detection of the built-in sensor, and the foreign matter or dust in the room is collected in the dust collecting unit disposed at the rear side as the brush assembly installed on the bottom part is rotated and rubbed on the cleaning floor. In A dust collecting box disposed at a predetermined interval behind the dust collecting unit; A filter unit communicatively coupled to the rear of the dust collecting box; And A suction duct assembly which is in communication with the filter unit and sucks air so that dust or foreign matter can be sucked into the dust collecting box from a cleaning bottom surface; The dust collecting box is divided into a first flow path part and a second flow path part by a blocking plate, and a guide member is coupled to the lower end of the first flow path part so that foreign matter or dust is guided and transported to the first flow path part. 2. An exhaust assembly of the robot cleaner of claim 2, wherein an extension member is coupled to a lower end of the flow path to extend the suction path to the bottom so that residual foreign matter not sucked through the brush assembly may be suctioned secondarily. The method of claim 1, The first channel portion and the second channel portion are formed with a first recessed portion and a second recessed portion respectively defining a predetermined receiving space so that foreign matter or dust is collected, wherein the front portion of the first recessed portion and the second recessed portion The dust collecting assembly of the robot cleaner, characterized in that the step is formed so as to prevent the foreign matter or dust collected. The method of claim 1, The brush assembly and the dust collecting box are installed on the bottom through surface of the robot cleaner main body, the lower surface of the brush assembly and the bottom surface of the dust collecting box is exposed to the bottom surface of the robot vacuum cleaner.

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