KR20140041905A - Cleaning robot - Google Patents

Abstract

A main body housing 2 frequently opening on the bottom surface F while opening the inlet opening 6 on the lower surface, opening the exhaust opening 7 on the upper surface, and an electric blower 22 disposed in the body housing 2; And a dust collecting part 30 arranged in the center of the main body housing 2 to collect dust collected in the airflow sucked from the suction port 6 by driving the electric blower 22, and a battery for supplying electric power to each part. (14), the electric blower 22 was arranged on one side with respect to the dust collector 30, and the battery 14 was arranged on the other side.

Description

Cleaning robot {CLEANING ROBOT}

The present invention relates to a cleaning robot that frequently runs on a floor surface.

The conventional cleaning robot is disclosed by patent document 1. As shown in FIG. This sweeping robot cleans with a substantially circular body housing in plan view on the floor. At this time, the main body housing is formed in a thin shape with a low height in order to clean the lower side of the table or the like. The drive wheel and the driven wheel which protrude from the bottom face are provided in the main body housing. The driven wheel is arranged in front of the driving direction at the time of cleaning with respect to the drive wheel.

The suction port is opened in the lower surface of the front part of the main body housing which is the front of the advancing direction at the time of cleaning, and the exhaust port is opened in the peripheral surface of the rear part. In the main body housing, a reduction part having an electric blower and a dust collecting part is disposed behind the driving wheel. The electric blower generates an intake air stream sucked from the intake port, and the dust collector captures dust contained in the intake air stream.

Between the intake port and the dust collector and between the dust collector and the exhaust port is connected by a duct, an electric blower is arranged in the duct. At this time, since the dust collecting part is detachably disposed, the inlet and the outlet of the air flow are in close contact with the duct via the packing.

Moreover, in the main body housing, a control board for controlling each part is provided with a battery and a control circuit for supplying electric power to each part, such as an electric blower and a drive wheel.

In the cleaning robot having the above configuration, when the cleaning operation is started, the driving wheel and the electric blower are driven. The main body housing frequently moves back and forth on the floor surface of the room by the rotation of the drive wheels and the driven wheels, and the airflow including the dust is sucked by the driving of the electric blower from the suction port disposed in the front part. The dust contained in the airflow is collected in the dust collector disposed in the rear part of the main body housing, and the airflow from which the dust has been removed passes through the electric blower and is exhausted backward from the exhaust port. As a result, the bottom surface is cleaned, and dust deposited on the dust collecting part is removed by discarding the dust collecting part.

Japanese Patent Laid-Open No. 2007-167617 (Page 6 to Page 10, Fig. 2)

The electric blower disposed in the main body housing has a large weight, and the dust collecting part has a large weight due to deposition of dust. For this reason, according to the said conventional cleaning robot which arrange | positioned the electric blower and the dust collector in the back of a drive wheel, the weight of a back is larger than the front of a drive wheel. At this time, if the main body housing retreats and suddenly stops in front of a step such as a descending staircase, the center of gravity moves to the rear, and the main body housing may fall from the step by the weight behind the driving wheels and be damaged. In addition, when dust is deposited on the dust collecting part, the weight of the rear side is larger than that of the driving wheel, so that the main body housing is more likely to fall from the step.

Similarly, when the weight of the front becomes larger than the rear of the drive wheel, there is a possibility of falling from the step such as the down stairs when the main body housing advances.

In addition, according to the conventional cleaning robot, a suction port is provided in the front part of the main body housing, and an electric blower and an exhaust port are provided in the rear part. For this reason, the passage of the airflow which connects an intake port and an exhaust port is extended and extended back and forth in a main body housing. In addition, the control board is distributed in the horizontal direction and the front-rear direction with respect to the dust collector, and the wiring which connects electric control parts, such as an electric blower and a drive wheel, and a some control board becomes long. Therefore, there was a problem that the main body housing is enlarged.

In addition, if use is continued in a state where a small airflow leakage occurs due to deterioration of the packing or the like, airflow containing dust flows on the control board, and dust is deposited on the control board. Thereby, there also existed a problem that the control circuit failed and the reliability of a cleaning robot falls.

An object of the present invention is to provide a cleaning robot which can prevent a fall from a step. Moreover, an object of this invention is to provide the cleaning robot which can attain miniaturization and can improve reliability.

In order to achieve the above object, the present invention is a body housing for opening the inlet and exhaust ports, a pair of drive wheels having a horizontal axis of rotation and frequent the body housing, an electric blower disposed in the body housing, and disposed on the axis of rotation And a dust collecting part for collecting dust of the airflow sucked from the suction port by driving of the electric blower, and a battery for supplying electric power to each part, and disposing the electric blower on one side with respect to the dust collecting part. The said battery is arrange | positioned at the side.

According to this configuration, the main body housing is moved forward and backward by driving a pair of drive wheels. For example, an electric blower is disposed in the front, and a battery is disposed in the rear, for example, in a dust collector disposed above the rotation shafts of both drive wheels. As a result, the weight of the main body housing is distributed before and after the driving wheel. By the drive of an electric blower, the airflow containing the dust of the bottom surface is sucked in from a suction port, and it collects in a dust collecting part. The airflow from which the dust is removed from the dust collector passes through the electric blower disposed in front of the dust collector, and is exhausted from the exhaust port. When the main body housing suddenly stops in front of a step such as a descending staircase at the time of advancing and retracting, the center of gravity moves back and forth. At this time, since the weight of the main body housing is distributed before and after the driving wheel, the fall of the main body housing is prevented. In addition, since the dust collector is disposed above the rotation shaft of the drive wheel, the weight balance of the main body housing is maintained even if the weight increases due to dust collection.

Moreover, this invention is the cleaning robot of the said structure WHEREIN: The said rotating shaft is arrange | positioned on the centerline of the said main body housing, It is characterized by the above-mentioned. According to this configuration, the weight of the main body housing is distributed back and forth with respect to the center line.

In addition, the present invention provides a cleaning robot having the above configuration, comprising a rotating brush provided at the suction port disposed in front of the driving wheel, and a rear wheel disposed at the rear of the driving wheel, wherein the rotating brush, the driving wheel, and the rear wheel are provided. It is characterized in that it is often grounded and grounded. According to this configuration, dust on the bottom surface is scraped off by rotation of the rotary brush and guided to the suction port. When the main body housing suddenly stops moving forward, the center of gravity of the main body housing moves forward, the rotating brush is deformed and the main body housing tilts forward. At this time, the body housing returns to its original posture because the weight is distributed back and forth.

Moreover, this invention is equipped with the control board which controls each part in the cleaning robot of the said structure, The said control board is arrange | positioned with respect to the said dust collecting part on the same side as the said battery, It is characterized by the above-mentioned. According to this structure, a heavy electric blower is arranged on one side with respect to the drive wheel, and a battery and a control board are arranged on the other side.

In addition, the present invention provides a cleaning robot having the above configuration, comprising an airflow path for communicating between the suction port and the dust collecting part, and between the dust collecting part and the exhaust port, wherein the airflow path is disposed on one side of the dust collecting part. Doing.

According to this structure, the main body housing is cleaned more frequently on the bottom surface by the control of the control board disposed behind the dust collecting part, for example. The airflow is sucked into the airflow path through the intake port which opens forward from the dust collector by the drive of the electric blower, and is exhausted from the exhaust port which opens in the front part of the main body housing via the dust collector.

In addition, the present invention, the suction port is opened on the lower surface and the exhaust port is opened on the upper surface, the main body housing is frequently on the bottom surface, an electric blower disposed in the main body housing, suction from the suction port by the drive of the electric blower A dust collecting section for collecting dust of the collected airflow, an air flow passage for communicating between the suction port and the dust collecting section, and between the dust collecting section and the exhaust port, and a control board for controlling each portion, wherein the airflow path is provided on one side with respect to the dust collecting section. In addition to the arrangement, the control board is arranged on the other side.

According to this configuration, the electric blower is driven so that the main body housing is often on the bottom surface by the control of the control board disposed behind the dust collector, for example. By the drive of the electric blower, the airflow including the dust of the bottom surface is sucked into the airflow path from the inlet opening which opens before the dust collecting part. The dust contained in the airflow is collected in the dust collecting part arranged behind the suction port. The airflow from which dust is removed from the dust collector passes through an electric blower disposed in front of the dust collector, and is exhausted from an exhaust port opening in the front portion of the main body housing.

In addition, in the cleaning robot of the above structure, the dust collecting unit is detachably housed and provided with a dust collecting chamber extending in one direction and partitioning the inside of the main body housing, and provided on a wall surface extending in the longitudinal direction of the dust collecting chamber. The first intake path into which the air flow flows in and the second intake path through which the air flow flows out are led out, and the other wall surface of the dust collecting chamber is blocked.

According to this configuration, the airflow sucked from the suction port flows through the first intake path, for example, drawn from the front wall of the dust collecting chamber, and flows into the dust collecting unit. The airflow from which the dust is removed from the dust collecting section flows through the second intake path derived from the front wall of the dust collecting chamber, and is guided to the electric blower.

The present invention also provides a cleaning robot according to the above structure, wherein the dust collecting part includes a dust collecting container in which dust is deposited by opening the inlet of the airflow, an upper cover opening and closing the upper surface of the dust collecting container, and opening the outlet of the airflow; It is characterized by having a filter disposed on the lower surface of the upper cover and collecting dust.

According to this configuration, the airflow sucked from the suction port flows into the dust collecting container through the inlet port, and dust is accumulated in the dust collecting container and collected by the filter. The airflow from which the dust has been removed flows out through an outlet provided in the upper cover. Dust in the dust collecting container is discarded by removing the dust collecting part from the main body housing and opening the top cover.

Moreover, the cleaning robot of the said structure WHEREIN: The opening surface of the said inflow port and the said exit port contains the inclined surface, The packing was arrange | positioned at the periphery of the said opening surface. According to this configuration, when the dust collecting part is mounted, the packing is sealed between the inlet and outlet and the wall surface of the dust collecting chamber. At this time, since the opening surfaces of the inlet and outlet include inclined surfaces, sliding movement between the packing and the wall surface of the dust collecting chamber at the time of attaching and detaching the dust collecting unit is prevented.

According to the present invention, since the electric blower is disposed on one side and the battery is disposed on the other side with respect to the dust collector disposed above the rotary shaft of the drive wheel, the weight of the main body housing is distributed evenly before and after the drive wheel. As a result, when the main body housing which is moved forward and backward is suddenly stopped in front of the step and the center of gravity moves back and forth, the posture can be maintained and the fall of the main body housing can be prevented. In addition, even if the weight of the dust collector is increased by dust collection, the weight balance of the main body housing is maintained, and the fall of the main body housing can be prevented more reliably.

Moreover, according to this invention, since the airflow path was arrange | positioned at one side and the control board | substrate was arrange | positioned at the other with respect to the dust collector, the airflow path and a control board are concentrated and arrange | positioned. As a result, the air flow path can be shortened, the wiring and the like can be reduced, and the body housing can be miniaturized. In addition, since the air flow path is spaced apart from the control board, adhesion of dust to the control board can be reduced when the air flow leaks, thereby reducing the failure of the control circuit.

BRIEF DESCRIPTION OF THE DRAWINGS The perspective view which shows the cleaning robot of embodiment of this invention.
2 is a side sectional view showing a cleaning robot of an embodiment of the present invention.
3 is a bottom view showing a cleaning robot of an embodiment of the present invention.
4 is a side cross-sectional view showing a state where the dust collecting part of the cleaning robot of the embodiment of the present invention is removed.
The perspective view which shows the motor unit of the cleaning robot of embodiment of this invention.
The front view which shows the motor unit of the cleaning robot of embodiment of this invention.
The top view which shows the motor unit of the cleaning robot of embodiment of this invention.
The side view which shows the motor unit of the cleaning robot of embodiment of this invention.

EMBODIMENT OF THE INVENTION Below, embodiment of this invention is described with reference to drawings. 1 is a perspective view illustrating a cleaning robot according to one embodiment. The cleaning robot 1 has the main body housing 2 which is circular in plan view which drives the driving wheel 29 (all FIG. 2) with the battery 14, and is frequent. On the upper surface of the main body housing 2, a cover part 3 which opens and closes when the dust collecting part 30 (see FIG. 2) is taken in and out is provided.

2 and 3 show side cross-sectional views and bottom views of the cleaning robot 1. The main housing 2 is provided with a pair of drive wheels 29 protruding from the bottom surface and rotating on the horizontal rotation shaft 29a. The rotating shaft 29a of the drive wheel 29 is disposed on the center line C of the main body housing 2. When both wheels of the drive wheel 29 rotate in the same direction, the main body housing 2 moves forward and backward, and when rotated in the reverse direction, the main body housing 2 rotates around the center line C. FIG.

The suction port 6 is provided in the lower surface in the front part of the main body housing 2 which becomes the front of a movement direction at the time of cleaning. The suction port 6 is formed to face the bottom surface F by the open surface of the recess 8 formed to be recessed in the bottom surface of the main body housing 2. In the recessed part 8, the rotary brush 9 which rotates in a horizontal rotational axis is arrange | positioned, and the side brush 10 which rotates in a vertical rotational axis is arrange | positioned at both sides of the recessed part 8.

In front of the recess 8, a roller-shaped front wheel 27 is provided. A rear wheel 26 made of a material wheel is provided at the rear end of the main body housing 2. As will be described later, the main body housing 2 has a weight distributed in the front-rear direction with respect to the drive wheel 29 disposed in the center, and the front wheel 27 is spaced apart from the bottom surface (F) to rotate the rotary brush 9, the drive wheel ( 29) and the rear wheel 26 are grounded to the bottom surface F, and cleaning is performed. For this reason, the dust in front of a path | route can be guided to the suction port 6, without interrupting | blocking by the front wheel 27. The front wheels 27 are grounded to the step shown on the course, so that the main body housing 2 can easily cross the step.

In front of the front wheel 27, a bottom detection sensor 18 for detecting the bottom surface F is provided. The same bottom surface detection sensor 19 is provided in front of both drive wheels 29. When a step such as a descending staircase appears on the course, the driving wheel 29 is stopped by the detection of the floor detection sensor 18. In addition, when the bottom detection sensor 18 malfunctions, the drive wheel 29 is stopped by the detection of the bottom detection sensor 19.

At the rear end of the circumferential surface of the main body housing 2, a charging terminal 4 for charging the battery 14 is provided. The main body housing 2 frequently returns to the charging stand 40 installed indoors, and the charging terminal 4 contacts the terminal portion 41 provided on the charging stand 40 to charge the battery 14. The charging stage 40 connected to a commercial power supply is normally provided along the side wall S of the room.

In the main body housing 2, the dust collecting part 30 which collects dust is arrange | positioned. The dust collecting part 30 is disposed on the rotating shaft 29a of the drive wheel 29 and is accommodated in the dust collecting chamber 39 provided in the main body housing 2. The dust collecting chamber 39 includes an isolation chamber covered with four circumferential surfaces and a bottom surface, and extends in the horizontal direction to partition the inside of the main body housing 2. Each wall surface of the dust collecting chamber 39 is closed except for the front wall extending in the longitudinal direction. On the front wall of the dust collecting chamber 39, the first intake passage 11 communicating with the recess 8 and the second intake passage arranged above the recess 8 and communicating with the motor unit 20 described later ( 12) is derived.

The dust collecting part 30 is disposed on the center line C of the main body housing 2, and as shown in FIG. 4, the cover part 3 of the main body housing 2 can be opened and taken out. The dust collecting unit 30 is provided with an upper cover 32 having a filter 33 on the upper surface of the bottomed cylindrical dust collecting container 31. The upper cover 32 is hooked to the dust collecting container 31 by the movable locking portion 32a, and opens and closes the upper surface of the dust collecting container 31 by the operation of the locking portion 32a. Thereby, the dust deposited on the dust collection container 31 can be discarded.

The inflow path 34 which opens the inflow port 34a at the front-end | tip and communicates with the 1st intake path 11 in the circumferential surface of the dust collection container 31 is derived. In the dust collection container 31, the inflow part 34b which guides the airflow downward by bending continuously in the inflow path 34 is provided. As a result, large dusts and heavy dusts can be easily stored at the bottom of the dust collecting container 31. The outflow path 35 which opens the outflow opening 35a at the front-end | tip and communicates with the 2nd intake path 12 in the circumferential surface of the upper cover 32 is guide | induced.

A packing (not shown) in close proximity to the front wall of the dust collecting chamber 39 is provided around the inlet 34a and the outlet 35a. Thereby, the inside of the dust collecting chamber 39 which accommodated the dust collecting part 30 is sealed. The opening face of the inlet opening 34a, the opening face of the outlet opening 35a, and the front wall of the dust collecting chamber 39 are formed on the inclined surface, and the deterioration of the packing due to the sliding movement at the time of discharging the dust collecting section 30 can be prevented. .

The control board 15 is disposed above the dust collecting chamber 39 in the main body housing 2. The control board 15 is provided with a control circuit for controlling each part of the cleaning robot 1. A removable battery 14 is disposed at the lower part of the rear of the dust collecting chamber 39. The battery 14 is charged from the charging stand 40 via the charging terminal 4, such as the control board 15, the drive wheel 29, the rotary brush 9, the side brush 10, and the electric blower 22. Supply power to each unit.

The motor unit 20 is disposed in the front portion of the main body housing 2. 5, 6, 7 and 8 show a perspective view, a top view, a front view and a side view of the motor unit 20, respectively. The motor unit 20 is provided with the housing 21 of the resin molded article, and the electric blower 22 accommodated in the housing 21. The electric blower 22 is formed by a turbo fan covered with the motor case 22a.

An inlet port (not shown) is opened at one end in the axial direction, and an exhaust port (not shown) is open at two positions on the circumferential surface of the motor case 22a of the electric blower 22. The opening part 23 is provided in the front surface of the housing 21 facing the inlet port of the motor case 22a. Both sides of the electric blower 22 of the housing 21 are provided with a first exhaust passage 24a and a second exhaust passage 24b which communicate with each exhaust port of the motor case 22a, respectively. The first and second exhaust passages 24a and 24b communicate with the exhaust port 7 (see FIG. 2) provided on the upper surface of the main body housing 2.

For this reason, the 1st, 2nd exhaust path 24a, 24b and the 2nd intake path 12 (refer FIG. 2) comprise the airflow path which communicates the dust collecting part 30 and the exhaust port 7. As shown in FIG. Moreover, the 1st intake path 11 (refer FIG. 2) comprises the air flow path which communicates the suction port 6 and the dust collecting part 30. As shown in FIG.

As a result, the air flow path including the electric blower 22 is collected at the front of the dust collecting chamber 39 and disposed at the front part of the main body housing 2, so that the air flow path can be shortened. In addition, the control board 15 and the battery 14 are collected at the rear of the dust collecting chamber 39 and disposed at the rear of the main body housing 2, whereby wiring and the like can be reduced. Therefore, the main body housing 2 can be miniaturized. In addition, since the flow path of the airflow is spaced apart from the control board 15, adhesion of dust to the control board 15 can be reduced when the airflow leaks, thereby reducing the failure of the control circuit.

Moreover, since the heavy electric blower 22 and the battery 14 are distributed and arrange | positioned before and behind the rotating shaft 29a of the drive wheel 29, with respect to the rotating shaft 29a which passes through the center line C of the main body housing 2, The weight is evenly distributed in the front-rear direction of the main body housing 2. As a result, the rotary brush 9, the driving wheel 29 and the rear wheel 26 are grounded so that the main body housing 2 is moved forward and backward, and the rotary brush 9 or the rear wheel 26 is removed from the ground plane by a step or the like. When it comes out, the fall of the main body housing 2 can be prevented.

Since the dust collecting part 30 is disposed on the center line C, even if the weight of the dust collecting part 30 changes due to dust collection and disposal of dust, the weight balance of the main body housing 2 can be maintained. In addition, since the weight of the electric blower 22 is large, it is possible to achieve a better weight balance by arranging the control board 15 and the battery 14 behind the rotating shaft 29a of the drive wheel 29.

An ion generating device 28 having a pair of electrodes 28a is disposed in the first exhaust passage 24a. A voltage including an alternating current waveform or an impulse waveform is applied to the electrode 28a, and ions generated by the corona discharge of the electrode 28a are released to the first exhaust passage 24a.

A positive voltage is applied to one electrode 28a, and hydrogen ions due to corona discharge are combined with moisture in the air to generate positive ions mainly containing H ⁺ (H ₂ O) m. The other electrode (28a) is applied to the negative voltage, and the oxygen ions by corona discharge in combination with moisture in the air mainly O ₂ ^- is generated negative ions, including n (H ₂ O). Here, m and n are arbitrary natural numbers. H ⁺ (H ₂ O) m and _{^{O 2 - (H 2 O)}} n surrounds them and aggregation on the surface of airborne bacteria and odors from the air.

Then, as shown in formulas (1) to (3), flocculation and malodorous components are formed by agglomerating the active species [· OH] (hydroxyl radical) and H ₂ O ₂ (hydrogen peroxide) on the surface of microorganisms by collision. Destroy it. Here, m 'and n' are arbitrary natural numbers. Therefore, positive and negative ions are generated and discharged from the exhaust port 7 (see Fig. 2), whereby the disinfection and deodorization of the room can be performed.

In addition, a return port 25 is formed in the lower portion of the first exhaust passage 24a to open the front surface. The return opening 25 is covered upward by a protrusion 25a protruding from the front face of the housing 21, and the opening face is formed into a curved surface along the wall surface of the recess 8 (see FIG. 2). Thereby, the return port 25 faces the inside of the recessed part 8 through the hole part (not shown) provided in the wall surface of the recessed part 8, and contains the ion which distribute | circulates the 1st exhaust path 24a. A part of the airflow that is made is led to the intake side.

In the cleaning robot 1 having the above configuration, when the cleaning operation is instructed, the electric blower 22, the ion generating device 28, the drive wheel 29, the rotary brush 9, and the side brush 10 are driven. Thereby, the main body housing 2 has the rotary brush 9, the drive wheel 29, and the rear wheel 26 grounded to the floor surface F, and a predetermined | prescribed cleaning area | region is frequent, and the floor surface F from the suction port 6 is made. The air stream containing the dust of) is sucked in. At this time, the dust on the bottom surface F is scraped by the rotation of the rotary brush 9, and guided into the recess 8. In addition, dust on the side of the suction port 6 is guided to the suction port 6 by the rotation of the side brush 10.

The air flow sucked in from the suction port 6 flows through the first intake path 11 to the rear as shown by arrow A1 and flows into the dust collecting part 30 via the inlet port 34a. The airflow flowing into the dust collector 30 collects dust by the filter 33 and flows out of the dust collector 30 through the outlet 35a. As a result, dust is collected and accumulated in the dust collecting container 31. The airflow flowing out from the dust collector 30 flows forward through the second intake passage 12 as shown by arrow A2 and flows into the electric blower 22 of the motor unit 20 via the opening 23. .

The airflow passing through the electric blower 22 flows through the first exhaust passage 24a and the second exhaust passage 24b, and ions are included in the airflow flowing through the first exhaust passage 24a. Then, as shown by arrow A3, the air flow containing ions in the oblique direction is exhausted from the exhaust port 7 provided on the upper surface of the main body housing 2 upward. Thereby, while the indoor cleaning is performed, the ions contained in the exhaust of the main body housing 2 which are frequently distributed widely are spread in the room, and sterilization and deodorization of the room are performed. At this time, since the air is exhausted upward from the exhaust port 7, the odor of dust on the bottom surface F can be prevented and the cleanliness of the room can be improved.

A part of the airflow flowing through the first exhaust path 24a is led to the recess 8 via the return port 25 as shown by arrow A4. For this reason, ion is contained in the airflow guide | induced from the suction port 6 to the 1st intake path 11. Thereby, disinfection and deodorization of the dust collecting container 31 and the filter 33 of the dust collecting part 30 can be performed.

In addition, when the main body housing 2 reaches the periphery of the cleaning area or collides with an obstacle on the path, the driving wheel 29 is stopped. Then, both wheels of the drive wheel 29 can be rotated in opposite directions to each other, and the main body housing 2 can be rotated about the center line C to change directions. Thereby, the main body housing 2 can be frequently made to the whole cleaning area | region, and an obstacle can be made to avoid frequently. In addition, both the wheels of the drive wheel 29 may be reversed to retract the main body housing 2 as compared with the forward movement.

When the main body housing 2 suddenly stops in front of a step such as a down staircase at the time of advancing and retreating, the center of gravity moves back and forth. At this time, since the weight of the main body housing 2 is distributed evenly before and after the driving wheel 29, the fall of the main body housing 2 is prevented. Moreover, since the dust collecting part 30 is arrange | positioned above the rotating shaft 29a of the drive wheel 29, even if the weight increases by dust collection, the weight balance of the main body housing 2 is maintained.

When the cleaning is finished, the main body housing 2 frequently returns to the charging table 40. As a result, the charging terminal 4 is in contact with the terminal portion 41 to charge the battery 14.

In addition, by the setting, the electric blower 22 and the ion generating device 28 can be driven during the charging or after the charging of the battery 14 in the feedback state of the main body housing 2. Thereby, the airflow containing ions is sent out from the exhaust port 7 to the upper back. Since the charging terminal 4 is provided in the rear end of the main body housing 2, the air flow containing ions flows in the direction of the charging table 40 and rises along the side wall S. As shown in FIG. The airflow flows along the ceiling wall and opposing side walls of the room. Therefore, ions are widely spread throughout the room, and the disinfection effect and the deodorizing effect can be improved.

According to this embodiment, since the electric blower 22 was arrange | positioned at one side and the battery 14 was arrange | positioned at the other with respect to the dust collecting part 30 arrange | positioned above the rotating shaft 29a of the drive wheel 29, the main body housing ( The weight of 2) is evenly distributed before and after the drive wheel 29. As a result, when the main body housing 2 moving forward and backward is suddenly stopped in front of the step and the center of gravity moves back and forth, the posture can be maintained to prevent the main body housing 2 from falling down. Moreover, even if the weight of the dust collecting part 30 becomes large by dust collection, the weight balance of the main body housing 2 is maintained, and the fall of the main body housing 2 in a level | step difference can be prevented more reliably.

In addition, although the rotating shaft 29a of the drive wheel 29 may be arrange | positioned on the centerline C of the main body housing 2, it is more preferable to arrange | position the rotating shaft 29a on the centerline C like this embodiment. Thereby, the weight of the main body housing 2 is distribute | balanced back and forth with respect to the center, and the fall of the main body housing 2 in a level | step difference can be prevented more reliably.

In addition, the rotary brush 9 provided at the suction port 6 in front of the drive wheel 29, the rear wheel 26 disposed at the rear of the drive wheel 29, and the drive wheel 29 are grounded to the bottom surface F. Since the stomach is frequent, it can be led to the suction port 6 without blocking the dust in front of the path. In addition, when the main body housing 2 advances and suddenly stops, the center of gravity of the main body housing 2 moves forward, the rotary brush 9 is deformed, and the main body housing 2 tilts forward. At this time, the main body housing 2 returns to its original posture because the weight is distributed before and after. Therefore, even in the main body housing 2 which tilts forward easily at the time of sudden stop because it is not grounded in front of the suction port 6, it is possible to prevent the fall from the step.

Moreover, since the control board 15 was arrange | positioned with respect to the dust collector 30 at the same side as the battery 14, the heavy electric blower 22 is arrange | positioned at the front and the control board 15 and the battery 14 are rearward. It can arrange | position to and can make a weight balance more favorable before and behind with respect to the drive wheel 29. Therefore, the fall of the main body housing 2 in a level | step difference can be prevented more reliably.

Further, the airflow paths (first and second intake paths 11 and 12, first and second exhaust paths 24a and 24b) are disposed in front of the dust collecting part 30, and the control board 15 is placed behind the dust collecting part 30. I am placing it. For this reason, the air flow path and the control board 15 are collectively arranged. Thereby, while shortening an air flow path, wiring and the like can be reduced, and the main body housing 2 can be miniaturized. In addition, since the air flow path is spaced apart from the control board 15, the adhesion of dust to the control board 15 can be reduced when the air flow leaks, thereby reducing the failure of the control circuit.

In addition, since the dust collecting chamber 39 extends in one direction to partition the inside of the main body housing 2a, the air flow path and the control board 15 can be easily isolated. Further, the first and second intake paths 11 and 12 are led out to the front wall extending in the longitudinal direction of the dust collecting chamber 39, and the other wall surface of the dust collecting chamber 39 is blocked. As a result, even if airflow leakage occurs at the inlet 34a or the outlet 35a, dust is trapped inside the dust collecting chamber 39. Therefore, adhesion of the dust to the control board 15 can be further reduced.

In addition, since the inlet 34a is opened in the dust collecting container 31 and the outlet 35a is opened in the upper cover 32 having the filter 33, the dust collecting container 31 is opened by opening and closing the upper cover 32. Dust accumulated in the inside can be easily discarded.

In addition, since the opening surfaces of the inlet port 34a and the outlet port 35a are formed by the inclined surface, and the packing is arranged at the periphery of the opening surface, the deterioration of the packing due to the sliding movement at the time of discharging the dust collector 30 is prevented. can do.

In this embodiment, although the electric blower 22 is arrange | positioned in front of the dust collecting part 30, and the battery 14 and the control board 15 are arrange | positioned at the rear, the electric blower 22 is one side with respect to the dust collecting part 30. ) And the battery 14 or the control board 15 on the other side.

Moreover, although the airflow path is arrange | positioned in front of the dust collecting part 30, and the control board | substrate 15 is arrange | positioned behind, what is necessary is just to arrange | position the airflow path to one side with respect to the dust collecting part 30, and arrange | positioning the control board 15 to the other side. .

≪ Industrial applicability >

According to this invention, it can use for the cleaning robot which frequently runs on the floor surface.

1 sweeping robot
2 body housing
3 cover
4 charging terminals
6 inlet
7 air vent
8 concave portion
9 rotary brush
10 side brush
11 With the first intake
12 With the second intake
14 batteries
15 control board
18, 19 bottom detection sensor
20 motor units
21 housing
22 electric blower
23 opening
24a first exhaust passage
24b second exhaust passage
25 return spout
28 ion generator
29 drive wheel
30 dust collector
31 dust collection container
32 top cover
33 filters
34 funnel
35 spillway
40 charging station
41 terminal

Claims (9)

A main housing for opening the inlet and the exhaust port, a pair of drive wheels having a horizontal rotating shaft, and an electric blower disposed in the main housing, a blower disposed on the rotating shaft, A dust collecting part for collecting dust of the airflow sucked from the suction port by driving; and a battery for supplying electric power to each part; and the electric blower disposed on one side of the dust collecting part, and the battery disposed on the other side. Cleaning robot, characterized in that. The cleaning robot according to claim 1, wherein the rotating shaft is disposed on a center line of the main body housing. 3. A rotating brush provided at the suction port disposed in front of the driving wheel, and a rear wheel disposed at the rear of the driving wheel, wherein the rotating brush, the driving wheel, and the rear wheel are grounded to form a ground surface. Cleaning robot, characterized in that often. The cleaning robot according to any one of claims 1 to 3, further comprising a control board for controlling each unit, and the control board being arranged on the same side as the battery with respect to the dust collecting unit. The cleaning robot according to claim 4, further comprising an air flow path communicating between the suction port and the dust collecting part and between the dust collecting part and the exhaust port, wherein the air flow path is disposed on one side of the dust collecting part. The main body housing frequently opens on the bottom surface while the suction port is opened on the lower surface, and the exhaust port is opened on the upper surface, the electric blower disposed in the main body housing, and the dust of the air flow sucked from the suction port by the driving of the electric blower. A dust collecting part for collecting dust, an air flow path for communicating between the suction port and the dust collecting part, and between the dust collecting part and the exhaust port, and a control board for controlling each part, the air flow path being disposed on one side with respect to the dust collecting part and the other The said control board arrange | positioned at the side, The cleaning robot characterized by the above-mentioned. The first method of claim 6, wherein the dust collecting unit is detachably stored and a dust collecting chamber is formed extending in one direction to partition the inside of the main body housing, and the airflow flows into a wall extending in the longitudinal direction of the dust collecting chamber. And a second intake path through which the air intake passage and the airflow flow out, and the other wall surface of the dust collecting chamber is closed. 8. The dust collecting apparatus of claim 7, wherein the dust collecting unit is disposed on a dust collecting container in which dust is deposited by opening the inlet of the airflow, an upper cover which opens and closes the outlet of the airflow while opening and closing an upper surface of the dust collecting container, and a lower surface of the upper cover. And a filter for collecting dust. The cleaning robot according to claim 8, wherein an opening surface of the inlet and the outlet includes an inclined surface, and a packing is disposed at a periphery of the opening surface.

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