JP2015154995A - Self-propelled cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric cleaner which can enhance convenience and reliability.

SOLUTION: The electric cleaner comprises: a body housing 2 to receive an electric blower 22 to generate a suction air flow; a dust container 30 detachably attached to a dust chamber 39 disposed in the body housing 2; a filter 33 detachably attached inside the dust container 30 to separate dust contained in the air flow and having an extension part 33a extended outside the dust container 30; and a detection sensor 18 to detect the extension part 33a. An operation control is performed in response to a detection state of the detection sensor 18.

COPYRIGHT: (C)2015,JPO&INPIT

Description

  The present invention relates to a self-propelled cleaner provided with a detachable dust collecting container.

  A conventional vacuum cleaner is disclosed in Patent Document 1. This electric vacuum cleaner is provided with a drive wheel in a main body housing having a substantially circular shape in plan view, and performs cleaning by running on the floor surface. A suction port is opened on the lower surface of the main body housing, and an electric blower that generates an airflow sucked from the suction port is disposed in the main body housing.

  A dust collection chamber is provided between the suction port and the electric blower, and a removable dust collection container is disposed in the dust collection chamber. The dust collecting container has an opening on the upper surface, and the opening is covered with a filter that separates dust contained in the airflow. Further, a detection sensor for detecting the dust collecting container is provided in the main body casing.

  In the electric vacuum cleaner having the above configuration, when the start of the cleaning operation is instructed, the storage state of the dust collecting container is determined by the detection sensor. When the dust collecting container is not stored, the driving of the electric blower is prohibited. When the dust collecting container is stored, the driving wheel and the electric blower are driven. The main body casing is self-propelled on the floor surface of the room by the rotation of the driving wheel, and the air current including dust is sucked from the suction port by the driving of the electric blower.

  The dust contained in the airflow flows into the dust collecting container and is separated by the filter, and the dust is collected in the dust collecting container. The airflow from which the dust has been removed passes through the electric blower and is exhausted. Thereby, the floor surface is cleaned. The dust accumulated in the dust collecting container is removed from the opening by removing the dust collecting container from the dust collecting chamber and removing the filter.

JP-A-2002-360482 (page 3 to page 7, FIG. 13)

  However, according to the conventional vacuum cleaner, the electric blower is driven when the user forgets to attach the filter after installing the dust collecting container after discarding the dust from the collecting container. For this reason, the dust of the airflow flowing into the dust collecting container is not separated, and the airflow containing the dust passes through the electric blower and is discharged into the room and scattered. Therefore, there has been a problem that the convenience of the vacuum cleaner is deteriorated and the reliability of the vacuum cleaner is lowered due to a failure of the electric blower.

  It is an object of the present invention to provide a self-propelled cleaner that can improve convenience and reliability.

In order to achieve the above object, the present invention includes a main body housing that includes an electric blower that generates a suction airflow, a dust collection container that is detachably disposed with respect to a dust collection chamber provided in the main body housing, A filter having an extending portion that is detachably disposed in the dust collecting container and separates dust contained in the airflow and that extends to the outside of the dust collecting container, and a detection sensor that detects the extending portion. And operating control according to the detection state of the detection sensor.
The present invention also includes a housing having a suction port, a dust collection container that is detachably disposed in the housing and collects dust sucked from the suction port, and a pair of self-running pairs. A pair of drive wheels, and the pair of drive wheels are controlled to move forward and forward in the same direction, reversely rotate and move backward in the same direction, and stand up from the front direction on the upper surface of the housing. A cover for taking in and out the dust collecting container in a state in which the dust collecting container is put in and out, and a detection sensor for detecting an open / closed state of the cover is provided in the housing, and the detection sensor detects that the cover is open. Then, the driving of the pair of driving wheels is prohibited.
Moreover, this invention is a self-propelled cleaner of the said structure, WHEREIN: While the said suction inlet is provided in the bottom face of the said housing | casing, it is located ahead of the center part of the bottom face of the said housing | casing.
Further, the present invention provides the self-propelled cleaner configured as described above, including a side brush that is rotatably provided on the bottom surface of the casing and is located on the front side of the center of the bottom surface of the casing. The side brush rotates on a rotation axis perpendicular to the bottom surface of the housing.
In the self-propelled cleaner configured as described above, when the detection sensor detects that the cover is open, the driving of the side brush is prohibited.
In the self-propelled cleaner having the above-described configuration, the present invention further includes a blowing unit that generates a suction airflow, and when the detection sensor detects that the cover is open, the driving of the blowing unit is prohibited. .
The present invention also provides a self-propelled cleaner configured as described above, further comprising a rotating brush rotatably provided at the suction port, wherein the rotating brush rotates on a rotating shaft that is horizontal with respect to the bottom surface of the housing. When the detection sensor detects that the cover is open, driving of the rotating brush is prohibited.

  According to this configuration, when the start of the cleaning operation is instructed, the extension portion of the filter extending from the dust collecting container is detected by the detection sensor. By driving the electric blower, an air flow including dust is sucked from the suction port, and the dust separated by the filter is collected in the dust collecting container. The airflow from which the dust has been removed passes through the electric blower and is exhausted. The dust accumulated in the dust collecting container is discarded by removing the dust collecting container from the dust collecting chamber. Moreover, the filter removed from the dust collecting container can be cleaned.

  Further, the present invention is characterized in that, in the electric vacuum cleaner having the above-described configuration, the electric blower is prohibited from being driven when the detection sensor is in a non-detection state of the extending portion. According to this configuration, when the dust collection container is not accommodated or when the filter is not attached to the accommodated dust collection container, the extension portion is not detected, and the driving of the electric blower is prohibited. When the dust container equipped with the filter is stored, the electric blower is driven.

  According to the present invention, in the vacuum cleaner configured as described above, the dust collecting container includes a container part having an opening on an upper surface thereof, and a lid part pivotally supported on the container part by a pivot part to open and close the opening part. The filter rotates integrally with the lid portion, the extension portion is arranged in parallel in the axial direction of the pivot support portion, and the detection sensor is disposed opposite to the axial direction of the extension portion. Yes.

  According to this configuration, the lid is rotated integrally with the filter to open the opening, and the dust in the dust collecting container is discarded from the opening. When the filter is attached to the dust collection container, the extension part is juxtaposed in the axial direction of the pivotal support part. When the dust collection container is stored in the dust collection chamber, the axial end face of the extension part is detected by the detection sensor. The When the filter is not attached, the pivotal support part is separated from the detection sensor, so that the detection sensor is in a non-detection state of the extension part.

  According to the present invention, in the vacuum cleaner having the above-described configuration, the detection sensor is formed of a photoelectric sensor.

  Moreover, this invention is characterized by alert | reporting at the time of the non-detection of the said extension part by the said detection sensor in the vacuum cleaner of the said structure. According to this configuration, it is notified that the dust collecting container or the filter is not attached.

  According to the present invention, in the electric vacuum cleaner having the above-described configuration, the detection sensor is formed by a distance measuring sensor, and the detection of the pivot portion is detected by the detection sensor and the non-detection of the pivot portion. It is characterized by performing different notifications depending on the time.

  According to this configuration, when the dust collecting container equipped with the filter is stored in the dust collecting chamber, the extending portion is detected by the detection sensor including the distance measuring sensor. When a dust container without a filter is stored in the dust chamber, the pivot is detected by the detection sensor. At this time, it is notified that the filter is not attached. When the dust container is not stored, the extension part and the pivot part are not detected. At this time, it is notified that the dust collecting container is not stored.

  According to the present invention, the filter has an extending part that extends to the outside of the dust collecting container, and the operation control according to the detection state of the extending part by the detection sensor is executed, so the convenience of the vacuum cleaner is improved. can do.

  Further, according to the present invention, since the driving of the electric blower is prohibited when the extension part is not detected by the detection sensor, the discharge of the air flow including dust is prevented when the dust collecting container and the filter are not attached. Therefore, the convenience of the vacuum cleaner is improved, and the failure of the electric blower can be prevented to improve the reliability of the vacuum cleaner.

The perspective view which shows the vacuum cleaner of embodiment of this invention Side surface sectional drawing which shows the vacuum cleaner of embodiment of this invention Side surface sectional drawing which shows the state which removed the dust collecting container of the vacuum cleaner of embodiment of this invention The perspective view which shows the state at the time of taking out the dust container of the vacuum cleaner of embodiment of this invention The perspective view which looked at the storage state of the dust collecting container of the vacuum cleaner of the embodiment of the present invention from the front The perspective view which looked at the storage state of the dust collecting container of the vacuum cleaner of the embodiment of the present invention from back. The perspective view which shows the state which opened the cover part of the dust collecting container of the vacuum cleaner of embodiment of this invention integrally with the filter. The perspective view which shows the state which opened the cover part of the dust collecting container of the vacuum cleaner of embodiment of this invention in the state which mounted the filter in the container part. The top view which shows the vacuum cleaner of embodiment of this invention The perspective view which shows the motor unit of the vacuum cleaner of embodiment of this invention The top view which shows the motor unit of the vacuum cleaner of embodiment of this invention The front view which shows the motor unit of the vacuum cleaner of embodiment of this invention The side view which shows the motor unit of the vacuum cleaner of embodiment of this invention

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a vacuum cleaner according to an embodiment. The vacuum cleaner 1 constitutes a cleaning robot that self-runs on the floor surface, and has a main body housing 2 that has a circular shape in plan view that drives the driving wheels 29 (both of which are shown in FIG. 2) by the battery 14 and that self-runs. Yes. A cover 3 that opens and closes when the dust collecting container 30 (see FIG. 2) is taken in and out is provided on the upper surface of the main housing 2.

  A display unit 17 is provided on the upper surface of the main body housing 2 to display and notify an error message or the like. Further, the main body housing 2 has a built-in speaker (not shown) for performing notification by voice.

  FIG. 2 shows a side cross-sectional view of the vacuum cleaner 1. A pair of drive wheels 29 projecting from the bottom surface is disposed on the main body housing 2. The rotation axis 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 opposite direction, the main body housing 2 rotates around the center line C.

  A suction port 6 is provided on the lower surface of the front portion of the main body housing 2 that is forward in the moving direction when cleaning is performed. The suction port 6 is formed so as to face the floor surface F by an open surface of a recess 8 that is recessed in the bottom surface of the main body housing 2. A rotating brush 9 that rotates with a horizontal rotating shaft is disposed in the recess 8, and a side brush 10 that rotates with a vertical rotating shaft is disposed on both sides of the recess 8.

  A roller-shaped front wheel 27 is provided in front of the recess 8. A rear wheel 26 composed of a free wheel is provided at the rear end of the main body housing 2. In the main body housing 2, weight is distributed in the front-rear direction with respect to the driving wheel 29 disposed in the center, the front wheel 27 is separated from the floor surface F, and the rotary brush 9, the driving wheel 29 and the rear wheel 26 are grounded to the floor surface F. And cleaning is performed. The front wheel 27 is in contact with a step appearing on the course so that the main body housing 2 can easily get over the step.

  A charging terminal 4 for charging the battery 14 is provided at the rear end of the peripheral surface of the main body housing 2. The main body casing 2 is self-propelled and 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 stand 40 connected to the commercial power supply is usually installed along the side wall S in the room.

  A dust collection container 30 for collecting dust is disposed in the main body housing 2. The dust collection container 30 is stored in a dust collection chamber 39 provided in the main body housing 2. The dust collection chamber 39 is composed of an isolation chamber whose four circumferential surfaces and bottom are covered, and is formed extending in the left-right direction so as to partition the inside of the main body housing 2. Each wall surface of the dust collection chamber 39 is closed except for the front wall extending in the longitudinal direction. A first intake passage 11 that communicates with the recess 8 and a second intake passage 12 that is disposed above the recess 8 and communicates with a motor unit 20 described later are led out on the front wall of the dust collection chamber 39.

  The dust collecting container 30 is disposed on the center line C of the main body housing 2 and can be taken in and out in the vertical direction by opening the cover 3 of the main body housing 2 as shown in FIG. 4 and 5 show perspective views of the dust collecting container 30 as viewed from the front. FIG. 6 shows a perspective view of the dust collecting container 30 as viewed from the rear. The dust collecting container 30 includes a bottomed container part 31 having an opening 31a (see FIG. 3) on the upper surface, and a lid part 32 for opening and closing the opening 31a.

  A movable handle 36 is provided on the upper surface of the lid portion 32 of the dust collecting container 30, and the dust collecting container 30 is attached and detached by holding the handle 36 standing upright as shown in FIG. Further, as shown in FIG. 5, the cover 3 (see FIG. 3) is closed in a state where the handle 36 is tilted to the upper surface of the dust collecting container 30.

  3 to 6, a pair of shaft portions 31 b extending in the left-right direction are provided at the left and right end portions of the front portion of the lid portion 32. The container portion 31 is provided with a pair of pivot portions 31b that pivotally support the lid portion 32 with a through hole (not shown) through which the shaft portion 31b is inserted. Further, the lid 32 is biased in the opening direction by a spring 32c provided on one shaft 31b. A movable locking portion 32 a that is locked to the container portion 31 is provided at the rear end of the lid portion 32. The lid portion 32 is locked by the locking portion 32a, and the opening portion 31a of the container portion 31 is closed. When the locking of the locking portion 32a is released, the lid portion 32 rotates and the opening 31a of the container portion 31 is opened.

  A filter 33 covering the opening 31a is detachably fitted to the lid 32. The dust contained in the airflow flowing into the dust collecting container 30 is separated by the filter 33. FIG. 7 shows a state where the lid portion 32 is opened integrally with the filter 33. FIG. 8 shows a state in which the lid portion 32 is opened with the filter 33 placed on the opening 31 a of the container portion 31.

  The filter 33 is configured in a unit form including a filter main body 33b, a frame portion 33c, and a packing portion 33d. The filter body 33b is formed of a porous material, and filters the airflow to separate dust. The frame portion 33c is formed of a resin molded product surrounding the filter body 33b.

  The packing portion 33d is provided on the lower surface of the frame portion 33c by an annular flexible member, and is placed on the edge of the entire circumference of the opening portion 31a. The packing portion 33 d is press-fitted into the inner peripheral surface of the lid portion 32, and the filter 33 is normally fitted to the lid portion 32. For this reason, in a state where the lid portion 32 is locked to the container portion 31 by the locking portion 32a, the packing portion 33d is crimped to the entire periphery of the edge of the opening portion 31a to seal the opening portion 31a. Further, as shown in FIG. 7, the filter 33 rotates integrally with the lid portion 32 to open the opening portion 31a, so that dust collected in the container portion 31 can be discarded from the opening portion 31a.

  A pair of notches 32 d is formed at the lower end of the front surface of the lid portion 32, and a notch portion 32 f is formed at the lower end of the rear surface of the lid portion 32. The frame 33c of the filter 33 is formed with a pair of extending portions 33a extending to the outside of the dust collecting container 30 through the notches 32d. Protruding portions (not shown) are provided on the end surfaces of the extending portions 33a facing each other. The filter 33 is attached to the pivot 31b by press-fitting protrusions from both sides into a through hole (not shown) of the pivot 31b. Thereby, the extension part 33a is juxtaposed at one end in the axial direction of the pivotal support part 31b, and is formed extending in the axial direction.

  The packing part 33d is provided with a convex part 33e protruding from the notch part 32f. If the cover part 32 is opened in a state where the convex part 33e is pressed with fingers, the filter 33 is maintained on the container part 31 side as shown in FIG. In this state, the peak portion on the upper surface of the filter 33 can be slid with a rod-shaped member to remove fine dust adhering to the filter 33 and be collected in the container portion 31.

  In addition, a handle 33f that is integrally formed with the frame portion 33c and protrudes upward is provided at the center of the upper surface of the filter 33. When the extension part 33a is pushed open on both sides, the state in which the protruding part of the extension part 33a is inserted into the through hole of the pivotal support part 31b is released. The filter 33 can be easily separated from the container portion 31 by holding the handle portion 33f. In this state, the container 31 and the lid 32 can be washed with water. Further, when the filter body 33b is a material that can be washed with water, the filter body 33b can be washed with water separated from the dust collecting container 30. In addition, since the filter 33 can be easily separated from and attached to the dust collecting container 30 as a unit, replacement with a new filter can be easily performed.

  FIG. 9 shows a top view of the electric vacuum cleaner 1 and shows a state where the cover 3 (see FIG. 1) is omitted and the dust collecting container 30 is removed. The detection sensor 18 is provided on one side of the dust collection chamber 39, and the detection sensor 19 is provided on the other side. The detection sensors 18 and 19 are formed by photoelectric sensors or the like, and detect objects to be detected within a predetermined detection distance from the detection sensors 18 and 19 by infrared reflection or the like.

  The detection sensor 18 is disposed to face the end surface in the axial direction of the one extending portion 33a. Thereby, when the dust collecting container 30 is not accommodated in the dust collecting chamber 39 and when the filter 33 is not attached to the dust collecting container 30 accommodated in the dust collecting chamber 39, the extension portion 33a of the detection sensor 18 is not removed. It becomes a detection state. Further, when the dust container 30 equipped with the filter 33 is stored in the dust chamber 39, the detection sensor 18 detects the extension 33a.

  The detection sensor 19 is arranged on the opposite side of the detection sensor 18 with respect to the dust collection chamber 39 and upwards of the main body housing 2, and faces the closed cover 3. Thus, when the cover 3 is opened, the cover 3 is not detected by the detection sensor 19. When the cover 3 is closed, the cover 3 is detected by the detection sensor 19.

  An inflow passage 34 communicating with the first intake passage 11 is opened on the circumferential surface of the container portion 31 by opening an inflow port 34 a at the tip. An inflow portion 34 b that guides the airflow downward by bending is provided in the container portion 31 continuously to the inflow passage 34. As a result, large dust or heavy dust can be easily collected at the bottom of the container portion 31. On the peripheral surface of the lid portion 32, an outflow path 35 that opens to the front end and communicates with the second intake path 12 is led out.

  A packing (not shown) that is in close contact with the front wall of the dust collection chamber 39 is provided around the inflow port 34a and the outflow port 35a. As a result, the inside of the dust collection chamber 39 in which the dust collection container 30 is stored is sealed. The opening surface of the inflow port 34a, the opening surface of the outflow port 35a, and the front wall of the dust collection chamber 39 are formed as inclined surfaces, and deterioration of the packing due to sliding when the dust collection container 30 is taken in and out can be prevented.

  A control board 15 is disposed in the upper part of the main body housing 2 behind the dust collection chamber 39. The control board 15 is provided with a control circuit for controlling each part of the vacuum cleaner 1. A detachable battery 14 is disposed in the lower part of the rear of the dust collection chamber 39. The battery 14 is charged from the charging stand 40 via the charging terminal 4 and supplies power to the control board 15, the drive wheel 29, the rotating brush 9, the side brush 10, the electric blower 22, and the like.

  A motor unit 20 is disposed at the front of the main body housing 2. 10, 11, 12, and 13 are a perspective view, a top view, a front view, and a side view of the motor unit 20, respectively. The motor unit 20 includes a housing 21 of a resin molded product and an electric blower 22 accommodated in the housing 21. The electric blower 22 is formed by a turbo fan covered with a motor case 22a.

  The motor case 22a of the electric blower 22 has an intake port (not shown) opened at one end in the axial direction and an exhaust port (not shown) opened at two locations on the peripheral surface. An opening 23 is provided on the front surface of the housing 21 so as to face the air inlet of the motor case 22a. A first exhaust path 24a and a second exhaust path 24b communicating with the exhaust ports of the motor case 22a are provided on both sides of the electric blower 22 of the housing 21, respectively. The first and second exhaust passages 24 a and 24 b communicate with an exhaust port 7 (see FIG. 2) provided on the upper surface of the main body housing 2.

  An ion generator 28 having a pair of electrodes 28a is disposed in the first exhaust path 24a. A voltage having an AC waveform or an impulse waveform is applied to the electrode 28a, and ions generated by corona discharge of the electrode 28a are discharged to the first exhaust path 24a.

A positive voltage is applied to one electrode 28a, and hydrogen ions generated by corona discharge combine with moisture in the air to generate positive ions mainly composed of H ⁺ (H ₂ O) m. A negative voltage is applied to the other electrode 28a, and oxygen ions generated by corona discharge combine with moisture in the air to generate negative ions mainly composed of O ₂ ⁻ (H ₂ O) n. Here, m and n are arbitrary natural numbers. H ⁺ (H ₂ O) m and O ₂ ⁻ (H ₂ O) n aggregate on the surface of airborne bacteria and odorous components and surround them.

  Then, as shown in the formulas (1) to (3), the active species [.OH] (hydroxyl radical) and H2O2 (hydrogen peroxide) are agglomerated on the surface of the microorganism or the like by collision to cause floating bacteria or Destroy odorous components. Here, m ′ and n ′ are arbitrary natural numbers. Therefore, it is possible to sterilize and deodorize the room by generating positive ions and negative ions and sending them out from the exhaust port 7 (see FIG. 2).

_{^{H + (H 2 O) m}} + O 2 - (H 2 O) n → · OH + 1 / 2O 2 + (m + n) H 2 O ··· (1)
_{^{H + (H 2 O) m}} + H + (H 2 O) m '+ O 2 - (H 2 O) n + O 2 - (H 2 O) n'
→ 2 · OH + O ₂ + (m + m ′ + n + n ′) H ₂ O (2)
_{^{H + (H 2 O) m}} + H + (H 2 O) m '+ O 2 - (H 2 O) n + O 2 - (H 2 O) n'
→ H ₂ O ₂ + O ₂ + (m + m ′ + n + n ′) H ₂ O (3)

  Further, a return port 25 having an open front is provided at the lower part of the first exhaust path 24a. The return port 25 is covered upward by a protruding portion 25a protruding from the front surface of the housing 21, and the opening surface is formed as a curved surface along the wall surface of the recess 8 (see FIG. 2). As a result, the return port 25 faces into the recess 8 through a hole (not shown) provided on the wall surface of the recess 8, and a part of the airflow including ions flowing through the first exhaust path 24 a is guided to the intake side. .

  In the vacuum cleaner 1 having the above configuration, when the cleaning operation is instructed, the presence or absence of the extending portion 33a is detected by the detection sensor 18. When the dust collection container 30 is not accommodated or when the filter 33 is not attached to the dust collection container 30 accommodated in the dust collection chamber 39, the extending portion 33a is not detected. At this time, the drive of the electric blower 22, the drive wheel 29, the ion generator 28, the rotating brush 9, and the side brush 10 is prohibited. Thereby, discharge of the airflow containing dust is prevented. Further, it is notified that the dust collecting container 30 or the filter 33 is not attached by a display on the display unit 17 or a sound from a speaker.

  Further, the open / close state of the cover 3 is detected by the detection sensor 19. When the cover 3 is open, the driving of the electric blower 22, the drive wheel 29, the ion generator 28, the rotating brush 9, and the side brush 10 is prohibited. Thereby, the collision of the cover 3 when the vacuum cleaner 1 enters a narrow area in the height direction such as below the bed can be prevented.

  When the dust collecting container 30 equipped with the filter 33 is accommodated in the dust collecting chamber 39 and the cover 3 is closed, the electric blower 22, the drive wheel 29, the ion generator 28, the rotating brush 9 and the side brush 10 are driven. As a result, the main body 2 has the rotating brush 9, the drive wheel 29 and the rear wheel 26 in contact with the floor surface F to self-propelled within a predetermined range, and an air flow including dust on the floor surface F is sucked from the suction port 6. . At this time, the dust on the floor surface F is scraped up by the rotation of the rotating brush 9 and guided into the recess 8. Further, the 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 from the suction port 6 flows rearward through the first intake passage 11 as shown by an arrow A1 (see FIG. 3), and flows into the dust collecting container 30 through the inlet 34a. The airflow flowing into the dust collecting container 30 is separated by the filter 33 and flows out from the dust collecting container 30 through the outlet 35a. Thereby, dust collects and accumulates in the container part 31. The airflow flowing out of the dust collecting container 30 flows forward through the second intake passage 12 as shown by an arrow A2 (see FIG. 3), and flows into the electric blower 22 of the motor unit 20 through the opening 23.

  The airflow that has passed through the electric blower 22 flows through the first exhaust path 24a and the second exhaust path 24b, and the airflow that flows through the first exhaust path 24a contains ions. Then, as shown by an arrow A3 (see FIGS. 3 and 12), an air flow containing ions in an oblique direction is exhausted from the exhaust port 7 provided on the upper surface of the main body housing 2 toward the upper rear. As a result, the room is cleaned, and ions contained in the exhaust of the self-propelled main body casing 2 are distributed into the room to be sterilized and deodorized in the room. At this time, since the air is exhausted upward from the exhaust port 7, it is possible to prevent the dust on the floor surface F from being rolled up and improve the cleanliness of the room.

  A part of the airflow flowing through the first exhaust path 24a is guided to the recess 8 through the return port 25 as shown by an arrow A4 (see FIG. 12). For this reason, ions are included in the airflow guided from the suction port 6 to the first intake passage 11. Thereby, the dust collection container 30 and the filter 33 can be sterilized and deodorized.

  Further, when both wheels of the drive wheel 29 are rotated in opposite directions, the main body housing 2 rotates around the center line C and changes its direction. Thereby, while making the main body housing | casing 2 self-propelled to the whole desired range, an obstacle can be avoided and self-propelled. Note that the main body housing 2 may be moved backward by reversing both wheels of the drive wheel 29 with respect to forward movement.

  When the cleaning is completed, the main body housing 2 self-propels and returns to the charging stand 40. Thereby, the charging terminal 4 contacts the terminal part 41 and the battery 14 is charged.

  In addition, the electric blower 22 and the ion generator 28 can be driven while the battery 14 is being charged or after the charging is completed in a feedback state of the main body housing 2 according to a predetermined setting. As a result, an airflow containing ions is sent from the exhaust port 7 upward and rearward. Since the charging terminal 4 is provided at the rear end of the main body housing 2, the airflow including ions flows in the direction of the charging base 40 and rises along the side wall S. The airflow circulates along the indoor ceiling wall and the opposite side wall. Accordingly, the ions are spread throughout the room, and the sterilizing effect and the deodorizing effect can be improved.

  According to the present embodiment, the filter 33 has the extending portion 33a extending to the outside of the dust collecting container 30, and the driving of the electric blower 22 is prohibited when the extending portion 33a is not detected by the detection sensor 18. When the dust collecting container 30 and the filter 33 are not attached, the discharge of the air flow including dust is prevented. Therefore, the convenience of the electric vacuum cleaner 1 can be improved and the electric blower 1 can be prevented from being broken to improve the reliability of the electric vacuum cleaner 1. Moreover, the unaccommodated state of the dust container 30 and the unmounted state of the filter 33 can be detected by the single detection sensor 18, and an increase in cost can be suppressed.

  Further, the lid portion 32 and the filter 33 pivotally supported by the pivotal support portion 31b are integrally rotated so that the extension portion 33a is juxtaposed in the axial direction of the pivotal support portion 31b, and the detection sensor 18 is arranged in the axial direction of the extension portion 33a. Are arranged opposite to each other. Thereby, the extension part 33a can be arrange | positioned in the axial direction of the pivot part 31b used as a dead space, and space saving can be achieved.

  Further, by forming the detection sensor 18 with a photoelectric sensor having a predetermined detection distance, the extension portion 33a can be easily detected, and erroneous detection of the pivot portion 32a can be prevented.

  Moreover, since it alert | reports at the time of non-detection of the extension part 33a, a user can be encouraged to mount | wear with the dust collecting container 30 and the filter 33, and the convenience of the vacuum cleaner 1 can be improved more.

  In this embodiment, when the extension part 33a is not detected by the detection sensor 18, the driving of the electric blower 22 is prohibited to prevent dust from being scattered, but other operations are performed depending on the detection state of the detection sensor 18. Control may be performed. For example, when an auxiliary filter that cannot be attached to and detached from the dust collecting container 30 is provided separately from the filter 33, the cleaning operation may be performed by driving the electric blower 22 when the detection sensor 18 is not detected. At this time, the user is informed that the filter 33 is not attached, and the user is prompted to attach it. Therefore, the convenience of the vacuum cleaner 1 can be improved by performing the operation control according to the detection state of the detection sensor 18.

  In the present embodiment, the detection sensor 18 is formed by a proximity switch such as a photoelectric sensor. However, the detection sensor 18 may be formed by a distance measurement sensor such as an ultrasonic sensor that detects the distance to the detected object. Thereby, the detection state of the pivot part 31b by the detection sensor 18 and the detection state of the extension part 33a can be discriminated. At this time, it is possible to improve convenience by distinguishing between the case where the dust container 30 is not stored and the case where the dust container 30 is stored and the filter 33 is not mounted. In this case, since the through hole through which the shaft portion 32d is inserted is formed in the pivot portion 31b, the shaft portion 32b may be detected by the detection sensor 18.

  Further, although the self-propelled vacuum cleaner 1 is described in the present embodiment, it is a canister type vacuum cleaner or an upright type vacuum cleaner in which a user moves a suction port body having a suction port. May be. Moreover, the cyclone type dust collecting container 30 which collects dust by forming a swirl airflow in the container part 31 may be used.

  According to this invention, it can utilize for the vacuum cleaner provided with the dust collection container which can be attached or detached.

DESCRIPTION OF SYMBOLS 1 Electric vacuum cleaner 2 Main body housing | casing 3 Cover part 4 Charging terminal 6 Suction port 7 Exhaust port 8 Recessed part 9 Rotating brush 10 Side brush 11 1st intake path 12 2nd intake path 14 Battery 15 Control board 20 Motor unit 21 Housing 22 Electricity Blower 23 Opening 24a 1st exhaust path 24b 2nd exhaust path 25 Return port 28 Ion generator 29 Driving wheel 30 Dust collection container 31 Container part 31a Opening part 31b Pivoting part 32 Cover part 32a Locking part 32b Shaft part 33 Filter 33a Extension part 33b Filter body 33c Frame part 33d Packing part 34 Inflow path 35 Outflow path 36 Handle 40 Charging stand 41 Terminal part

Claims (6)

A housing having a suction port;
A dust collecting container that is detachably arranged in the housing and collects dust sucked from the suction port;
A pair of drive wheels provided for self-running,
The pair of driving wheels are controlled to rotate forward in the same direction and move forward, to reverse rotate in the same direction and move backward.
On the upper surface of the housing, there is a cover for taking out and putting in the dust collecting container in an upright state opened from the front direction,
The casing is provided with a detection sensor for detecting the open / closed state of the cover,
A self-propelled cleaner, wherein when the detection sensor detects that the cover is in an open state, driving of the pair of drive wheels is prohibited.   2. The self-propelled cleaner according to claim 1, wherein the suction port is provided on a bottom surface of the housing and is located on a front side of a center portion of the bottom surface of the housing. A side brush is provided on the bottom surface of the housing so as to be rotatable, and located on the front side from the center of the bottom surface of the housing,
The self-propelled cleaner according to claim 1 or 2, wherein the side brush rotates on a rotation axis perpendicular to a bottom surface of the casing.   The self-propelled cleaner according to claim 3, wherein when the detection sensor detects that the cover is in an open state, the driving of the side brush is prohibited. It has a blower that generates a suction airflow,
The self-propelled cleaner according to any one of claims 1 to 4, wherein when the detection sensor detects that the cover is in an open state, driving of the air blowing unit is prohibited. A rotary brush provided rotatably at the suction port,
The rotating brush rotates on a rotation axis that is horizontal with respect to the bottom surface of the housing,
The self-propelled cleaner according to any one of claims 1 to 5, wherein when the detection sensor detects that the cover is in an open state, driving of the rotating brush is prohibited.

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