JP2020038035A - Mobile air cleaner - Google Patents

Abstract

To provide a mobile air cleaner that can perform air cleaning operation depending on a situation of a person.SOLUTION: A mobile air cleaner 1 according to the present invention comprises: wheels 9s1 and 9s2; driving motors 9m1 and 9m2 for driving the wheels 9s1 and 9s2; a filter 3 for removing dust in air in a room sucked from a suction port 2i; a fan 6 provided downstream of the filter 3; a fan motor 6m for driving the fan 6; first person detection means 4a provided at one side of a case 2, and for detecting a person; second person detection means 4b provided at the other side of the case 2, and for detecting the person; a discharge port 2o for discharging the air after the dust is removed; and control means 11 and 12 for controlling the driving motors 9m1 and 9m2 and the fan motor 6m on the basis of information of the first and second person detection means 4a and 4b.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a mobile air purifier.

2. Description of the Related Art Conventionally, there is a stationary air purifier that controls operation according to the presence or absence of a person in a room.
For example, in Patent Literature 1, when a dust detection sensor does not detect dust for a predetermined time even though a human detection unit detects a person, the motion of a person who flies up dust is It is described that it is determined that there is no such control, and control for weakening or stopping the air cleaning operation is performed.

  Patent Document 2 discloses that the presence or absence of a person can be accurately detected by detecting the direction of movement of the person, and the blowing means is controlled according to the presence or absence of the person. For example, the control means counts the detection result of entering and exiting the room based on the detection signal of the human detection means, determines the number of people in the room, and automatically controls the blowing means according to the number of people in the room. Further, it is described that the control means changes a threshold for judging a detection signal of the dirt detection means in accordance with the number of persons in the room, and automatically sets the sensitivity of the dirt detection means individually in accordance with the number of persons in the room.

  Patent Literature 3 describes that a blown wind is blown above the head of a person present in a room, so that a wind direction vector does not point in the direction of the person.

JP 2012-97955 A (FIG. 4, paragraph 0047, etc.) JP 2009-274050 A (FIGS. 1 to 4, paragraph 0007, etc.) WO 2015/181950 (FIGS. 4 to 7, paragraphs 0040, 0041, etc.)

By the way, unlike a stationary air purifier, a mobile air purifier performs air purification while moving in a room. When operating the air purifier near a person, the wind at the discharge port may be exposed to the person. A person who is exposed to the wind of the air purifier may be disturbed by the wind and the sound.
Patent Documents 1 to 3 are stationary air purifiers, and thus cannot solve the above-mentioned problem in a mobile air purifier.

  The present invention has been made in view of the above situation, and an object of the present invention is to provide a mobile air purifier capable of performing an air cleaning operation according to the situation of a person.

  In order to solve the above problems, a mobile air cleaner according to a first aspect of the present invention includes a wheel for moving a housing, a driving motor for driving the wheel, and a suction motor disposed in the housing and sucked from a suction port. A filter for removing dust from indoor air, a fan provided on the downstream side of the flow of air passing through the filter, a fan motor for driving the fan, and a fan provided on one side of the housing; First person detecting means for detecting whether there is a person, second person detecting means provided on the other side of the housing and for detecting whether there is a person, and a discharging means for discharging air from which the dust has been removed An outlet and control means for controlling the drive motor and the fan motor based on information from the first person detection means and the second person detection means are provided.

  A mobile air cleaner according to a second aspect of the present invention includes a wheel for moving a housing, a driving motor for driving the wheel, and dust in indoor air that is disposed in the housing and is sucked from a suction port. A filter to be removed, a fan provided on the downstream side of the flow of air passing through the filter, a fan motor for driving the fan, a person detecting means for detecting whether or not a person is present; and the dust is removed. And a control means for controlling the drive motor and the fan motor based on information from the human detection means, wherein the control means detects a person by the human detection means. If so, the wheels are controlled so as to direct the outlet in a direction where no one is present.

  A mobile air cleaner according to a third aspect of the present invention includes a wheel for moving a housing, a driving motor for driving the wheel, and dust in indoor air that is disposed in the housing and is sucked from a suction port. A filter to be removed, a fan provided on the downstream side of the flow of air passing through the filter, a fan motor for driving the fan, and a fan provided at the front of the housing to detect whether there is a person or not. Human detection means, dust detection means for detecting dust in the air, a discharge port provided at the rear of the housing, for discharging the air from which the dust has been removed, based on information of the human detection means, And a control means for controlling the driving motor and the fan motor.

  ADVANTAGE OF THE INVENTION According to this invention, the mobile air cleaner which can perform an air purifying operation | movement according to a person's situation can be provided.

1A is a perspective view illustrating a mobile air purifier according to an embodiment of the present invention, and FIG. 2B is an external perspective view of the mobile air cleaner according to the embodiment when an upper cover is opened. FIG. 2 is a top view of the mobile air cleaner according to the embodiment. The II sectional view of Drawing 2 of a mobile type air cleaner of an embodiment. (A) is a side view of the mobile air purifier of the embodiment, (b) is a II-II sectional view of (a), and (c) is a III-III sectional view of (a). The bottom view of a mobile type air cleaner. The rear view of a mobile air cleaner. FIG. 3 is a control block diagram of the mobile air purifier. The perspective view in the state where a mobile type air cleaner moves to a power supply stand. The control flow figure of a mobile type air cleaner. The typical top view of the mobile air cleaner of a modification. The control block diagram of the mobile air cleaner of a modification. The control flow figure of the mobile air purifier of a modification. FIG. 9 is a control flowchart of the mobile air purifier of the first modification.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings as appropriate.
FIG. 1 shows a mobile air cleaner 1 according to an embodiment of the present invention. FIG. 1A shows an external perspective view, and FIG. 1B shows an external perspective view when the upper lid 2f is opened.
FIG. 2 shows a top view of the mobile air cleaner 1 of the embodiment.
FIG. 3 shows a cross section taken along line II of FIG. 2 of the mobile air cleaner 1 according to the embodiment.

As shown in FIGS. 1A and 1B, the mobile air cleaner 1 of the embodiment has a flat, substantially columnar main body 1H.
As shown in FIG. 3, the main body 1H of the mobile air purifier 1 includes a blowing unit 1w, a traveling unit 1r, a filter 3, a sensor 4, a control board 5a, a storage battery 5b, and an outer cover 2 including these. Have been.
The main body 1H is covered with an exterior cover 2, which is a flat, substantially cylindrical housing. An upper cover 2f is provided on the upper surface of the exterior cover 2.

  Since the filter 3 is provided above the main body 1H, the upper cover 2f can be lifted and the filter 3 can be easily replaced. When replacing the filter 3, as shown in FIG. 1B, the upper lid 2f can be opened, and the filter handle 3h can be gripped and lifted.

  As shown in FIGS. 1A and 2, a substantially U-shaped main body intake port 2i is provided on the upper side surface of the outer cover 2 when viewed from above.

  FIG. 4A shows a side view of the mobile air cleaner 1 according to the embodiment. FIG. 4B shows a cross section taken along the line II-II of FIG. FIG. 4C shows a cross section taken along the line III-III of FIG.

  As shown in FIGS. 3 and 4C, a main body outlet 2o is provided at a lower center of a position where there is no main body inlet 2i. In other words, the main body suction port 2i is not disposed above the main body discharge port 2o.

  As shown by an arrow α1 in FIG. 4B, the suction port 2i draws indoor air from the front and side by driving the fan 6. Then, the air from which dust and the like have been removed and cleaned by the filter 3 is discharged from the rear main body discharge port 2o as shown by an arrow α2 in FIG.

The blowing means 1w shown in FIG. 3 includes a fan 6, a fan motor 6m, and a scroll 7.
The fan motor 6m is arranged coaxially with the fan 6 and drives the fan 6.

  The fan 6 is arranged substantially upward. By rotating, the fan 6 draws in air from above through the suction port 6i and discharges it to the side (arrow α2 in FIG. 3). The suction port 6i refers to the upper end surface 6h1 of the blade 6h of the fan 6.

  As shown in FIG. 4C, the scroll 7 is provided on the outer periphery of the fan 6 in a spiral shape when viewed from above.

  The running means 1r shown in FIG. 3 has left and right wheels 9s1 and 9s2, left and right wheel motors 9m1 and 9m2, and rear wheels 9k. The left and right wheel motors 9m1 and 9m2 drive the left and right wheels 9s1 and 9s2.

FIG. 5 shows a bottom view of the mobile air cleaner 1. FIG. 6 shows a rear view of the mobile air cleaner 1.
As shown in FIGS. 3 and 6, the mobile air cleaner 1 is provided with a pair of left and right wheels 9 s 1 and 9 s 2 and a rear wheel 9 k protruding downward.
The left and right wheels 9s1 and 9s2 are driving wheels, and the rear wheel 9k is a driven wheel. By using the left and right wheels 9s1 and 9s2 as drive wheels, the direction of the mobile air cleaner 1 can be changed.

  Belts are used as power transmission means from the left and right wheel motors 9m1 and 9m2 to the left and right wheels 9s1 and 9s2, respectively. Power from the left and right wheel motors 9m1 and 9m2 is transmitted to the left and right wheels 9s1 and 9s2 via pulleys 9p1 and 9p2 (see FIG. 5), respectively.

  As shown in FIG. 5, the rear wheels 9k are fixed to the bottom plate 2t via casters 9c. The casters 9c are rotatably held by the bottom plate 2t.

  As shown in FIGS. 3 and 4 (a), a main body suction port 2i and a main body discharge port 2o are arranged above the left and right wheels 9s1, 9s2 and the rear wheel 9k.

The filter 3 shown in FIGS. 3 and 4 (b) is a pre-filter for removing dust having a large particle size, a HEPA filter for removing dust having a small particle size, and a deodorizing filter for removing odor components. Is configured.
The filter 3 is provided in a substantially circular shape inside the main body suction port 2i when viewed from above. As shown in FIG. 3, the filter 3 is provided on the upper side of the main body 1H in the height direction.

<Arrangement of Filter 3 and Fan 6>
In the present embodiment, the filter 3 is provided on the side of the main body 1H, and the air flow (arrow α1 in FIG. 2) is deflected at a substantially right angle to flow into the suction port 6i of the upward fan 6. That is, the air that has passed through the filter 3 is deflected at a substantially right angle and flows into the suction port 6i of the fan 6.

  The lower end face 3a of the filter 3 arranged on the side of the mobile air cleaner 1 is arranged above the lower end face 6h2 of the impeller 6h of the fan 6. In other words, the lower end surface 6h2 of the impeller 6h of the fan 6 is disposed below the lower end surface 3a of the filter 3. With this arrangement, as shown in FIG. 3, the air filtered through the filter 3 can be discharged from the side (rear) main body discharge port 2o without being obstructed by the filter 3 in the vertical direction.

<Operation unit 1S>
As shown in FIG. 1A, the operation unit 1S of the mobile air cleaner 1 is disposed on the upper surface of the main body 1H, which is located outside the upper lid 2f. That is, the operation unit 1S is provided on the rear part 1h1 of the main body 1H without the substantially U-shaped main body suction port 2i when viewed from above.

  The operation unit 1S has an operation button s1. As shown in FIG. 2, the wiring s2 connected to the operation button s1 passes through the rear portion 1h1 of the main body 1H which avoids the main body suction port 2i having a substantially U-shape in a top view, as shown in FIG. It is connected to the. As shown in FIG. 4B and FIG. 2, the filter 3 and the wiring s2 of the operation button s1 do not overlap in the vertical direction when viewed from above.

<Control system>
As shown in FIGS. 3 and 4B, the sensor 4 includes a dust detection unit (dust sensor) 4c for detecting dust, a front person detection unit 4a, and a rear person detection unit 4b.
Each of the front person detecting means 4a and the rear person detecting means 4b is constituted by any one of an ultrasonic sensor, an infrared sensor, an infrared camera, a laser sensor, a ToF sensor and the like. Of course, any other device that can detect a person may be used.

As shown in FIG. 1A and FIG. 3, the front person detecting means 4a is disposed at the front of the main body 1H. The rear person detecting means 4b is provided at the rear of the main body 1H. By having the front person detecting means 4a and the rear person detecting means 4b, it is possible to detect whether or not there is a person before and after the main body 1H, and to perform the air cleaning operation.
In addition, other than the sensor 4, an odor sensor (not shown) for detecting an odor, an infrared sensor (not shown) for detecting an obstacle, a TOF sensor (not shown) for measuring a distance to an obstacle, and the like are provided. May be used.

The control board 5a shown in FIG. 3 is supplied with power from a storage battery 5b.
The control board 5a controls the fan motor 6m and the left and right wheel motors 9m1 and 9m2 based on various sensor information. In this way, the mobile air purifier 1 purifies the air in the room by passing through the filter 3 while autonomously traveling.
FIG. 7 shows a control block diagram of the mobile air cleaner 1.
The control system of the mobile air cleaner 1 includes a power supply unit 10, a behavior control unit 11, and an operation control unit 12.

The action control unit 11 and the operation control unit 12 are mounted on the control board 5a. The behavior control unit 11 and the operation control unit 12 are configured to include a microcomputer, various sensor circuits, a motor control circuit, and the like.
The power supply unit 10 supplies power to the behavior control unit 11 and the operation control unit 12. The power supply unit 10 includes a storage battery 5b.

The behavior control unit 11 has a calculation device 11a. Signals (information) are input to the arithmetic unit 11a from the front person detecting means 4a, the rear person detecting means 4b, and the dust collecting sensor 4c. The arithmetic device 11a determines the action of the mobile air cleaner 1 based on the information.
It is desirable to use a distance measuring sensor that measures the distance between the mobile air cleaner 1 and a person, in addition to the person detecting means (4a, 4b). The distance measuring sensor includes an ultrasonic sensor, a laser sensor, and the like.

The operation control unit 12 has an arithmetic unit 12a.
The arithmetic unit 12a controls the fan motor 6m, the left and right wheel motors 9m1, 9m2, and the display unit 12b based on a command from the arithmetic unit 11a of the behavior control unit 11.
The display unit 12b displays the operating state, the degree of air contamination, and the like.

FIG. 8 is a perspective view showing a state where the mobile air cleaner 1 moves to the power supply stand 10a.
When the mobile air purifier 1 performs autonomous operation and the capacity of the storage battery 5b (see FIG. 3) is reduced, as indicated by a white arrow in FIG. Automatically move to the power supply stand 10a to charge the storage battery 5b.

<Air flow of mobile air cleaner 1>
Next, the flow of air in the mobile air cleaner 1 will be described.

  When the fan motor 6m shown in FIG. 3 is driven, the fan 6 rotates (arrow α3 in FIG. 3). By the rotation of the fan 6, as shown by an arrow α1 in FIG. 3, indoor air is sucked into the main body 1H from the main body suction port 2i.

The air that has flowed in from the main body suction port 2i passes through the filter 3 to remove dust, odor, etc., and is cleaned. After passing through the filter 3, the purified air is deflected from the side downward at a substantially right angle, and reaches the suction port 6 i (6 h 1) of the fan 6.
As shown in FIG. 3, inside the fan 6, the air is deflected from below to the side at a substantially right angle (arrow α4 in FIG. 3), and reaches the scroll 7 provided on the outer periphery of the fan 6.
The air that has reached the scroll 7 is decelerated and increased in pressure inside the scroll 7 through the spiral scroll 7 as shown by an arrow α5 in FIG. (Room) (arrow α2 in FIGS. 3 and 4 (c)).

<Control of mobile air cleaner 1>
Next, control of the mobile air cleaner 1 will be described.
The control of the mobile air purifier 1 is control applied when one or more persons are indoors.
The operation of the mobile air purifier 1 is determined by the action control unit 11 shown in FIG.

FIG. 9 shows a control flow of the mobile air cleaner 1.
When the power of the mobile air purifier 1 is turned on by the operation button s1, the operation of the mobile air purifier 1 is started.
First, the mobile air cleaner 1 moves randomly (step S1 in FIG. 9).
Then, the dust collecting sensor 4c detects whether the air in the room is dirty (step S2).

Subsequently, from the detection information of the dust collection sensor 4c, it is determined by the arithmetic device 11a of the behavior control unit 11 whether or not the air cleaning operation is necessary (Step S3).
When it is determined that the air cleaning operation is not necessary (No in step S3), the rotation of the fan 6 is turned off, and after a certain period of time, the process returns to the power supply base 10a (see FIG. 8) (step S4). Then, the process returns to step S1.
On the other hand, when it is determined that the air cleaning operation is necessary (Yes in step S3), the front person detection means 4a detects whether or not there is a person in front of the mobile air cleaner 1 (step S5).

From the information of the front person detecting means 4a, it is determined by the arithmetic unit 11a whether or not there is a person ahead (step S6).
When it is determined that there is no person in front (No in Step 6), the fan 6 is operated weakly (Step S7), and the process returns to Step S1. When a person is not detected by the front person detecting means 4a, the fan 6 is operated weakly. Therefore, even when a person is behind the main body 1H, strong exhaust is not applied to the person behind.

On the other hand, if it is determined that there is a person in front (Yes in Step 6), the rear person detecting means 4b detects whether there is a person behind the mobile air cleaner 1 (Step S8).
Subsequently, the arithmetic unit 11a determines whether or not there is a person behind the mobile air cleaner 1 based on the information of the rear person detection means 4b (step S9).

When it is determined that there is no person behind (Yes in Step 9), the fan 6 is operated weakly (Step S10), and the process returns to Step S1.
When it is determined that there is a person behind (No in Step 9), it is determined whether or not the activity of the person is high (Step S11).

When the activity amount of the person is not high (No in Step 11), the fan 6 is weakly operated (Step S12). When the amount of human activity is not high, the operation sound of the mobile air cleaner 1 is reduced. When the amount of activity of a person is not high, for example, at the time of sleeping, reading, watching a TV or a PC, or talking. If the amount of human activity is not high, the rotation speed of the fan 6 is reduced so as not to disturb the human activity.
Then, the process returns to step S1.

When the activity amount of the person is high (Yes in Step 11), the fan 6 is strongly operated (Step S13). When the amount of human activity is high, the driving sound may be high. The case where the amount of human activity is high is, for example, a time when the importance of quietness such as changing clothes, searching for things, folding of laundry, etc. is not important. In this case, the rotation speed of the fan 6 is increased. Then, the process returns to step S1.
As shown in steps S12 and S13, since the level of the operation sound of the mobile air purifier 1 is switched according to the amount of activity of the person, the air purification operation can be performed without giving any discomfort to the person.

When the capacity of the storage battery 5b is reduced during the control of the mobile air purifier 1 in FIG. 9, the mobile air purifier 1 autonomously moves to the power supply stand 10a as shown in FIG. After the charging of the storage battery 5b, the control flow shown in FIG. 9 is continued.
When the power is turned off by the operation button s1 of the mobile air purifier 1, the control in FIG. 9 ends.

According to the above configuration, when a person is on the side of the main body outlet 2o of the mobile air cleaner 1 and the person is not in an active state, the fan 6 is set to a weak operation to restrict exhaust. However, when the person is in the action state, the driving sound may be high, so the fan 6 is set to the strong driving.
Since the operation of the mobile air purifier 1 is changed according to the behavior of the person, the person does not feel uncomfortable while purifying the air near the person.

Therefore, even when there is a plurality or a single person in the room, the mobile air cleaner 1 can be operated without giving any discomfort to the person.
Therefore, the air purifying operation according to the indoor situation can be performed. Therefore, the air purifying operation of the mobile air purifier 1 can be performed while maintaining indoor comfort.

<< modified example >>
In the embodiment, the control is effective even when one or more persons are indoors. However, the present modification is effective when there is one person in the room.
FIG. 10 shows a schematic top view of a mobile air cleaner 1A according to a modification. The mobile air purifier 1A of the modified example is configured such that the human detecting means is only the front front human detecting means 14a.
Other configurations are the same as those of the mobile air purifier 1 of the embodiment, and therefore, the same components are denoted by the same reference numerals, and detailed description will be omitted.

The mobile air purifier 1A of the modified example is provided with a front person detecting means 14a at a front portion and a main body discharge port 2o at a rear portion. For this reason, the air-cleaned exhaust gas is discharged from the main body discharge port 2o, as indicated by a white arrow in FIG.
By providing the front person detecting means 14a at the front part and the main body discharge port 2o at the rear part, it is possible to detect the person with the front person detecting means 14a and exhaust air from the main body discharge port 2o in the direction where no person exists.

FIG. 11 shows a control block diagram of a mobile air cleaner 1A according to a modification.
The control system of the mobile air cleaner 1A includes a power supply unit 10, a behavior control unit 11A, and an operation control unit 12.
The action control unit 11A has an arithmetic device 11a. The calculation device 11a receives detection signals (information) from the front person detection means 14a and the dust collection sensor 4c, and performs calculation for determining the operation of the mobile air cleaner 1A.
The front person detecting means 14a is configured by any of an ultrasonic sensor, an infrared sensor, an infrared camera, a laser sensor, a ToF sensor, and the like, as in the embodiment.

<Control of Mobile Air Purifier 1A of Modification>
Next, control of the mobile air cleaner 1A will be described.
The operation of the mobile air purifier 1A is determined by the behavior control unit 11A, and the operation of the mobile air purifier 1A is controlled by the operation control unit 12.
FIG. 12 shows a control flow of the mobile air purifier 1A of the modified example.

When the power of the mobile air purifier 1A is turned on by the operation button s1, the operation of the mobile air purifier 1A is started.
The mobile air purifier 1A randomly moves indoors (step S21 in FIG. 12).
Then, the dust collecting sensor 4c detects whether the air in the room is dirty (step S22).
Subsequently, the arithmetic unit 11a determines whether or not the air cleaning operation is necessary based on the information from the dust collection sensor 4c (step S23).

When it is determined that the air cleaning operation is not necessary (No in step S23), the rotation of the fan 6 is turned off (step S24), and the process proceeds to step S21.
On the other hand, when it is determined that the air cleaning operation is necessary (Yes in step S23), the front person detection means 14a detects whether a person is present in front of the mobile air cleaner 1 (step S25).

Then, it is determined from the information of the front person detecting means 14a whether or not there is a person ahead (step S26).
When it is determined that there is no person in front (No in step 26), the fan 6 is strongly operated (step S27). Thereafter, the process returns to step S21.
On the other hand, when it is determined that there is a person in front (Yes in step 26), the mobile air cleaner 1A rotates to turn the main body outlet 2o in a direction where no person is present (step S28). Since the main body discharge port 2o is directed to a direction where no person is present, it is not necessary to evacuate the person.

Subsequently, it is determined whether the activity amount of the person is high based on the information of the front person detecting means 14a (step S29).
If it is determined that the amount of human activity is not high (No in step 29), the fan 6 is operated weakly (step S30), and the process returns to step S21. The activity amount of the person is not high, for example, when sleeping, reading, watching TV or PC, talking, and the like.

On the other hand, if it is determined that the amount of human activity is high (Yes in step 29), the fan 6 is strongly operated (step S31), and the process returns to step S21. The high activity amount of a person is, for example, when the importance of quietness such as changing clothes, searching for things, or folding laundry is not important.
As shown in steps S30 and S31, the intensity of the operation of the fan 6 is switched according to the level of the human activity, so that the air purifying operation can be performed according to the human activity.

When the capacity of the storage battery 5b is reduced during the control of the mobile air purifier 1A in FIG. 12, the action control unit 11A autonomously moves to the power supply stand 10a as in FIG. Charge 5b. Thereafter, the control flow shown in FIG. 12 is continued.
When the power supply of the mobile air purifier 1A is turned off by the operation button s1, the control of FIG. 12 ends.

According to the above configuration, when there is no person indoors, the fan 6 is air-cleaned by strong operation. When there is a person, the mobile air purifier 1A is controlled so that the exhaust does not hit the person. When the activity of the person is high, the fan 6 is operated strongly, and when the activity of the person is low, the fan 6 is operated weakly. Therefore, the air purifying operation is performed according to the operation of the indoor person. Therefore, the comfort according to the activity of the person is maintained while the mobile air purifier 1A is operated.
Note that the control of the above-described modified example may be used also when there are a plurality of persons.

<< Modification 1 >>
The mobile air purifier 1B of the first modification (see FIG. 10) is configured such that the human detecting means is only the front front human detecting means 14a in the same manner as the first modification. The discharge port 2o is directed to weak operation.
Other configurations are the same as those of the mobile air purifier 1A of the modified example, and therefore, the same components are denoted by the same reference numerals, and detailed description thereof will be omitted.

The modification 1 is effective control when there is one person in the room, similarly to the modification.
Control of the mobile air purifier 1B of the first modification will be described.
In the mobile air purifier 1B, the operation of the mobile air purifier 1B is determined by the behavior control unit 11A and the operation of the mobile air purifier 1B is controlled by the operation control unit 12, as in FIG.

FIG. 13 shows a control flow of the mobile air cleaner 1B of the first modification.
Steps S41 to S48 in FIG. 13 are the same as steps S21 to S28 in FIG. 12, and a description thereof will be omitted.

If it is determined in step S46 of FIG. 13 that there is a person (Yes in step S46), the mobile air cleaner 1B rotates to turn the main body discharge port 2o in a direction where no person is present (step S48).
Then, the fan 6 is set to the weak operation (step S49), and the process returns to step S41. When a person is detected, the main body discharge port 2o is directed to a direction where no person is present, and the driving is weak, so that the driving sound entering the human ear can be reduced.

When the capacity of the storage battery 5b is reduced during the control of the mobile air purifier 1 in FIG. 13, the storage control unit 11 autonomously moves to the power supply stand 10a by a command from the behavior control unit 11 as in FIG. Charge 5b. Thereafter, the control flow shown in FIG. 13 is continued.
When the power supply of the mobile air purifier 1B is turned off by the operation button s1, the control of FIG. 13 ends.

According to the above configuration, when there is no person indoors, the fan 6 is air-cleaned by strong operation. When there is a person indoors, the direction is changed so that the exhaust air of the mobile air purifier 1B does not hit the person, and the fan 6 is weakly operated. Therefore, the air purifying operation is performed so that the exhaust is not applied to the indoor person. Therefore, the comfort is maintained while the mobile air purifier 1B is operated.
Note that the control of the above-described first modification may be used even when there are a plurality of persons.

<< Other embodiments >>
1. In the above embodiment, the case where the front person detecting means 4a is provided at the front part of the main body 1H and the rear person detecting means 4b is provided at the rear part of the main body 1H, but the front person detecting means 4a is provided at one side of the main body 1H. If the rear person detecting means 4b is provided on the other side of the main body 1H, the rear person detecting means 4b is not necessarily required to be the front part and the rear part. By providing the front person detecting means 4a on one side of the main body 1H and providing the rear person detecting means 4b on the other side of the main body 1H, it is possible to detect the presence of a person on one side of the main body 1H and the other side of the main body 1H. , Air cleaning operation can be performed.

2. In the above-mentioned modified example and modified example 1, the case where the front person detecting means 14a is provided at the front part of the main body 1H and the main body discharge port 2o is provided at the rear part of the main body 1H has been described. If it is provided on one side and the main body discharge port 2o is provided on the other side of the main body 1H, it is not always necessary to be the front part and the rear part. By providing the front person detecting means 14a on one side of the main body 1H and providing the main body discharge port 2o on the other side of the main body 1H, it is possible to detect the presence of a person on one side of the main body 1H and perform an air cleaning operation. Become.

3. Although each configuration has been described in the embodiment, the modified example, and the modified example 1, these configurations may be appropriately combined. For example, a configuration may be adopted in which these configurations are selected and combined as appropriate, and the operation mode is switched using the switching button. Thereby, an operation mode suitable for the state of the room can be selected.

4. The configuration described in the embodiment, the modification, and the modification 1 is an example of the present invention, and other various forms are possible within the scope described in the claims.

1, 1A, 1B Mobile air cleaner 2 Exterior cover (housing)
2i Main unit suction port (suction port)
2o Body outlet (discharge port)
3 Filter 4a Front person detection means (first person detection means)
4b Rear person detecting means (second person detecting means)
4c Dust sensor (dust detection means)
6 Fan 6m Fan motor 9m1 Left wheel motor (drive motor)
9m2 right wheel motor (drive motor)
9s1 Left wheel (wheel)
9s2 Right wheel (wheel)
11, 11A Behavior control unit (control means)
12. Operation control unit (control means)
14a Front person detection means (person detection means)

Claims (10)

Wheels for moving the housing,
A drive motor for driving the wheels,
A filter disposed in the housing to remove dust in the indoor air sucked from the suction port,
A fan provided on the downstream side of the flow of air passing through the filter,
A fan motor for driving the fan;
First person detection means provided on one side of the housing, to detect whether there is a person,
A second person detection unit provided on the other side of the housing and detecting whether or not a person is present,
An outlet for discharging the air from which the dust has been removed,
A mobile air purifier comprising: control means for controlling the drive motor and the fan motor based on information from the first person detection means and the second person detection means. The mobile air purifier according to claim 1,
Equipped with dust detection means for detecting dust in the air,
The control means includes:
Dust is detected by the dust detection means,
When the first person detecting means detects that there is no person,
A mobile air cleaner, wherein the rotation speed of the fan motor is controlled to be lower among the heights. The mobile air purifier according to claim 1,
Equipped with dust detection means for detecting dust in the air,
The control means includes:
Dust is detected by the dust detection means,
When the first person detecting means detects that there is a person, and when the second person detecting means detects that there is a person,
A mobile air cleaner, wherein the rotation speed of the fan motor is controlled to be lower among the heights. The mobile air purifier according to claim 1,
Equipped with dust detection means for detecting dust in the air,
The outlet is provided on the other side of the housing,
The control means includes:
Dust is detected by the dust detection means,
When the first person detecting means detects that there is a person, and when the second person detecting means detects that there is no person,
If the amount of activity of the person is high, control the rotation speed of the fan motor to be high,
When the amount of activity of the person is not high, the rotation speed of the fan motor is controlled so as to decrease. The mobile air purifier according to claim 1,
The first person detection means is provided at a front portion of the housing,
The said 2nd person detection means and the said discharge port are provided in the rear part of the said housing | casing, The mobile air cleaner characterized by the above-mentioned. Wheels for moving the housing,
A drive motor for driving the wheels,
A filter disposed in the housing to remove dust in the indoor air sucked from the suction port,
A fan provided on the downstream side of the flow of air passing through the filter,
A fan motor for driving the fan;
A human detecting means for detecting whether or not a person is present;
An outlet for discharging the air from which the dust has been removed,
Control means for controlling the drive motor and the fan motor based on information of the human detection means,
The mobile air purifier, wherein, when a person is detected by the person detection means, the control means controls the wheels so that the discharge port is directed in a direction where no one is present. The mobile air purifier according to claim 6,
Equipped with dust detection means for detecting dust in the air,
The control means includes:
Dust is detected by the dust detection means,
When a person is detected by the person detecting means, the discharge port is directed in a direction where the person is not present, and the rotation speed of the fan motor is controlled so as to be lower than a higher value. . The mobile air purifier according to claim 6,
Equipped with dust detection means for detecting dust in the air,
The control means includes:
Dust is detected by the dust detection means,
When a person is detected by the human detection means, directs the discharge port in a direction where the person is not present,
When the amount of activity of the person is high, increase the rotation speed of the fan motor,
A mobile air purifier, wherein the rotation speed of the fan motor is reduced when the activity amount of the person is not high. The mobile air purifier according to claim 6,
The human detection means is arranged on one side of the housing,
The mobile air purifier, wherein the outlet is disposed on the other side of the housing. Wheels for moving the housing,
A drive motor for driving the wheels,
A filter disposed in the housing to remove dust in the indoor air sucked from the suction port,
A fan provided on the downstream side of the flow of air passing through the filter,
A fan motor for driving the fan;
A human detection unit provided at a front part of the housing and detecting whether or not a human is present,
Dust detection means for detecting dust in the air,
An outlet provided at the rear of the housing, for discharging the air from which the dust has been removed,
A mobile air purifier comprising: control means for controlling the drive motor and the fan motor based on information from the human detection means.

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