TWI709715B - Mobile air purifier - Google Patents

Abstract

[Question] To provide a mobile air purifier that can perform air purifying operations in response to human conditions. [Solution] The mobile air cleaner (1) of the present invention is provided with: wheels (9s1, 9s2); and driving motors (9m1, 9m2) that drive the wheels (9s1, 9s2); and filters ( 3), is to remove the dust in the indoor air sucked from the suction port (2i); and the fan (6) is installed at the downstream side of the filter (3); and the fan motor (6m) is Drive the fan (6); and the first person detection means (4a), which are set on one side of the frame (2) and detect people; and the second person detection means (4b), are It is set on the other side of the frame (2) and detects people; and the discharge port (2o) is used to discharge the air after dust is removed; and the control means (11, 12) are based on the first The information of the second person detecting means (4a, 4b) is used to control the driving motor (9m1, 9m2) and the fan motor (6m).

Description

Mobile air purifier

The present invention relates to a mobile air cleaner.

In the prior art, in fixed air purifiers, there are those who control the operation according to the presence or absence of people in the room. For example, in Patent Document 1, it is stated that even if the human detection means detects a person, when the dust sensor does not detect dust within a certain time, it is judged that it is not The movement of the person whose dust rises, and the control to weaken or stop the air cleaning operation.

In Patent Document 2, it is described that it is possible to accurately detect the presence or absence of a person by detecting the direction of movement of the person, and to control the air blowing means according to the presence or absence of the person. For example, the control means counts the detection results of the entry and exit of the room caused by the detection signal of the human detection means, determines the number of people in the room, and automatically controls the air supply means according to the number of people in the room. In addition, it is recorded that the control means changes the threshold for determining the detection signal of the dirt detection means according to the number of people in the room, and automatically sets the sensitivity of the dirt detection means according to the number of people in the room.

In Patent Document 3, it is described that the wind is blown to the head of a person who is staying indoors, and the wind direction vector is configured not to face the person. [Prior Technical Literature] [Patent Literature]

[Patent Document 1] JP 2012-97955 A (Figure 4, paragraph 0047, etc.) [Patent Document 2] Japanese Patent Application Publication No. 2009-274050 (Figures 1 to 4, paragraph 0007, etc.) [Patent Document 3] International Publication No. 2015/181950 (Figures 4 to 7, paragraphs 0040, 0041, etc.)

[The problem to be solved by the invention]

In addition, the mobile air purifier is different from the fixed air purifier, and it cleans the air while moving indoors. When the air cleaning operation is performed next to a person, the wind from the spit may touch the person. People who are touched by the wind of the air purifier will notice the wind or sound and feel uncomfortable. Patent Documents 1 to 3 are fixed-type air purifiers, and therefore cannot eliminate the above-mentioned problems in mobile air purifiers.

The present invention was created in view of the above-mentioned situation, and its purpose is to provide a mobile air purifier capable of performing air purifying operation in response to human conditions. [Means to solve the problem]

In order to solve the aforementioned problems, the first mobile air purifier of the present invention is provided with: wheels for moving the frame; and a driving motor for driving the wheels; and a filter screen arranged in the frame , And remove dust in the indoor air sucked from the suction inlet; and a fan, which is arranged at the downstream side of the flow of air passing through the filter; and a fan motor, which drives the fan; and first The human detection means is set on one side of the aforementioned frame and detects whether there is a person; and the second human detection means is set on the other side of the aforementioned frame and detects Whether there is a human being; and the exhaust port is to exhaust the air after the dust is removed; and the control means are based on the information of the first person detection means and the second person detection means to control the aforementioned The driving motor and the aforementioned fan motor are used for control.

The mobile air purifier of the second aspect of the present invention is provided with: wheels which move the frame; and a drive motor which drives the wheels; and a filter which is arranged in the frame and sucks Remove the dust in the indoor air sucked by the mouth; and the fan, which is arranged at the downstream side of the flow of the air passing through the filter; and the fan motor, which drives the fan; and the human detection means, which detects Detect whether there is a human being; and the exhaust port is to discharge the air after the dust is removed; and the control means is based on the information of the human detection means to control the driving motor and the fan motor The aforementioned control means controls the aforementioned wheels in such a way that the aforementioned discharge port faces a direction in which no aforementioned persons exist when the human situation is detected by the aforementioned human detection means.

The mobile air purifier of the third aspect of the present invention is provided with: wheels which move the frame; and a drive motor which drives the wheels; and a filter which is arranged in the frame and sucks The dust in the indoor air sucked by the mouth is removed; and the fan is installed at the downstream side of the flow of the air passing through the filter; and the fan motor drives the fan; and the human detection means is It is installed at the front part of the aforementioned frame and detects whether there is a person; and the dust detection means is to detect dust in the air; and the exhaust port is installed at the rear part of the aforementioned frame and will make the aforementioned The dust is removed from the air; and the control means is based on the information of the human detection means to control the drive motor and the fan motor. [Effects of Invention]

According to the present invention, it is possible to provide a mobile air purifier capable of performing an air purifying operation in response to human conditions.

Hereinafter, the embodiments of the present invention will be described in detail with appropriate reference to the drawings. In Fig. 1, a mobile air cleaner 1 according to an embodiment of the present invention is shown. Fig. 1(a) is a perspective view showing the appearance, and Fig. 1(b) is a perspective view showing the appearance when the upper cover 2f is opened. In Fig. 2, the top view of the mobile air cleaner 1 of the embodiment is shown. In Fig. 3, the I-I section of Fig. 2 of the mobile air cleaner 1 of the embodiment is shown.

As shown in Figs. 1(a) and (b), the mobile air purifier 1 of the embodiment is provided with a main body 1H having a flattened cylindrical shape. As shown in Fig. 3, the main body 1H of the mobile air purifier 1 is composed of a blowing means 1w, a walking means 1r, a filter 3, a sensor 4, a control board 5a, a battery 5b, and these components. Cover 2 outside the bag, and constitute it. The main body 1H is covered by the outer casing 2 of a flat and cylindrical frame. On the top of the exterior cover 2, an upper cover 2f is attached.

Since the filter screen 3 is arranged above the body 1H, the upper cover 2f can be lifted and the filter screen 3 can be exchanged simply. When the filter screen 3 is exchanged, as shown in Fig. 1(b), the upper cover 2f is opened, and the filter screen handle 3h can be held and raised.

As shown in FIG. 1(a) and FIG. 2, the upper side surface of the exterior cover 2 is provided with a main body suction port 2i that is substantially U-shaped when viewed from above.

In Fig. 4(a), a side view of the mobile air cleaner 1 of the embodiment is shown. In Figure 4(b), the section II-II of Figure 4(a) is shown. In Figure 4(c), the section III-III of Figure 4(a) is shown.

As shown in Figs. 3 and 4(c), the main body discharge port 2o is provided in the lower center of the position where the main body suction port 2i does not exist. In other words, above the main body discharge port 2o, the main body suction port 2i is not arranged.

As shown by the arrow α1 in Fig. 4(b), the suction port 2i is driven by the fan 6 to suck indoor air from the front and the sides. However, the dust and the like are removed by the filter 3 and become clean air, as shown by the arrow α2 in FIG. 3, and is discharged from the rear body discharge port 2o.

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

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

As shown in Fig. 4(c), the scroll tube 7 is attached to the outer periphery of the fan 6, and is arranged in a scroll shape when viewed from above.

The traveling means 1r shown in FIG. 3 includes 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.

In FIG. 5, the bottom view of the mobile air cleaner 1 is shown. In FIG. 6, the rear view of the mobile air cleaner 1 is shown. As shown in Figs. 3 and 6, in the mobile air cleaner 1, a pair of left and right wheels 9s1, 9s2 and a rear wheel 9k are provided so as to protrude downward. The left and right wheels 9s1 and 9s2 are the driving wheels, and the rear wheel 9k is the passive wheels. By setting the left and right wheels 9s1 and 9s2 as drive wheels, the direction of the mobile air cleaner 1 can be changed.

As power transmission means from the left and right wheel motors 9m1 and 9m2 to the left and right wheels 9s1 and 9s2, belts are used. The 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 (refer to FIG. 5), respectively.

As shown in FIG. 5, the rear wheel 9k is fixed to the bottom plate 2t via casters 9c. The caster 9c is rotatably held at the bottom plate 2t.

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

The filter 3 shown in Fig. 3 and Fig. 4(b) is equipped with a pre-filter for removing dust with a large particle size, a HEPA filter for removing dust with a small particle size, and It is composed of a deodorizing filter to remove odor components. The filter screen 3 is attached to the inner side of the main body suction port 2i, and is set in a slightly circular shape when viewed from above. As shown in FIG. 3, the filter screen 3 is arranged on the upper side of the main body 1H in the height direction.

<Configuration of Filter 3 and Fan 6> In this embodiment, the filter screen 3 is installed on the side of the main body 1H, and the air flow (arrow α1 in FIG. 2) is deflected at a slightly right angle and flows into the suction port 6i of the fan 6 facing upward. That is, the air after passing through the filter screen 3 is deflected to a slightly right angle and flows into the suction port 6i of the fan 6.

In addition, the lower end surface 3a of the filter 3 arranged at the side of the mobile air cleaner 1 is arranged above the lower end surface 6h2 of the fan 6 h of the fan 6. In other words, the lower end surface 6h2 of the fan-blade car 6h of the fan 6 is arranged below the lower end surface 3a of the filter screen 3. With this configuration, as shown in Fig. 3, the air filtered through the filter 3 can come from the side (rear) of the main body without being obstructed by the filter 3 in the vertical direction. The discharge port is 2o and discharged.

＜Operation part 1S＞ As shown in Fig. 1(a), the operating part 1S of the mobile air cleaner 1 is arranged on the upper surface of the main body 1H at a position outside the upper cover 2f. That is, the operation part 1S is provided at the rear part 1h1 of the main body 1H that does not have a U-shaped main body suction port 2i when viewed from above.

The operation part 1S is equipped with an operation button s1. The wiring s2 connected to the operating buckle s1 is as shown in Fig. 2 by avoiding the rear part 1h1 of the main body suction port 2i which is a U-shape when viewed from above at the main body 1H. Connect with the control board 5a (refer to FIG. 3). As shown in Fig. 4(b) and Fig. 2, it is configured such that the slightly circular filter screen 3 and the wiring s2 of the operation button s1 do not overlap in the vertical direction when viewed from above.

＜Control System＞ As the sensor 4, as shown in Figures 3 and 4(b), it is equipped with a dust detection means (dust sensor) 4c that detects dust, a front human detection means 4a, and a rear human detection means 4a. Measure 4b. The front person detecting means 4a and the rear person detecting means 4b are respectively constituted by any one of an ultrasonic sensor, an infrared sensor, an infrared camera, a laser sensor, a ToF sensor, etc. In addition, as long as it is a device that can detect people, other devices can of course be used.

As shown in Fig. 1(a) and Fig. 3, the front person detecting means 4a is arranged at the front part of the main body 1H. The rear person detecting means 4b is arranged 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 there is a person before and after the main body 1H, thereby enabling air purifying operation. In addition, as the sensor 4, in addition to this, an odor sensor (not shown) that detects odors, an infrared sensor (not shown) that detects obstacles, and measurement ToF sensor (not shown) for the distance between the obstacle and the obstacle.

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

The action control unit 11 and the action control unit 12 are mounted on the control board 5a. The action control unit 11 and the action control unit 12 are configured with a microcomputer, various sensor circuits, motor control circuits, and the like. The power supply unit 10 supplies power to the action control unit 11 and the action control unit 12. The power supply unit 10 is constituted by a battery 5b.

The action control unit 11 is equipped with an arithmetic device 11a. At the calculation device 11a, signals (information) are input from the front person detecting means 4a, the rear person detecting means 4b, and the dust collection sensor 4c. The calculation device 11a determines the action of the mobile air cleaner 1 based on this information. In addition, ideally, in addition to the human detection means (4a, 4b), a distance sensor that measures the distance between the mobile air cleaner 1 and the human is also used. Ranging sensors are composed of ultrasonic sensors, laser sensors, etc.

The operation control unit 12 is provided with an arithmetic device 12a. The calculation device 12a controls the fan motor 6m, the left and right wheel motors 9m1, 9m2, and the display portion 12b based on the instructions of the calculation device 11a of the action control unit 11. The display portion 12b displays the operating status, the degree of air contamination, and the like.

In FIG. 8, a perspective view of the state where the mobile air cleaner 1 moves to the power supply stand 10a is shown. The mobile air purifier 1 performs autonomous operation. When the capacity of the battery 5b (refer to FIG. 3) decreases, it is commanded by the action control unit 11 (refer to FIG. 7), just like the white arrow in FIG. 8 As shown generally, it moves to the power supply station 10a spontaneously and charges the battery 5b.

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

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

The air flowing in from the main body suction port 2i passes through the filter 3 and is cleaned by removing dust, odor, etc. After the cleaned air passes through the filter 3, it is deflected at a slightly right angle from the side to the bottom, and reaches the suction port 6i (6h1) of the fan 6. As shown in FIG. 3, inside the fan 6, the air is deflected slightly at right angles to the side from below (arrow α4 in FIG. 3 ), and reaches the vortex tube 7 provided on the outer periphery of the fan 6. The air reaching the scroll tube 7 is as shown by the arrow α5 in Fig. 4(c). It passes through the scroll-shaped scroll tube 7 to decelerate and boost the pressure inside the scroll tube 7, and then from the rear body The discharge port 2o is discharged to the outside (indoor) (arrow α2 in Figs. 3 and 4(c)).

＜Control of mobile air cleaner 1＞ Next, the control of the mobile air cleaner 1 will be described. The control of the mobile air purifier 1 is the control applied when there is one person or more than one person in the house. The mobile air cleaner 1 has an action determined by the action control unit 11 shown in FIG. 7 and is controlled by the action control unit 12.

In Fig. 9, the control flow of the mobile air cleaner 1 is shown. If the mobile air cleaner 1 is turned on by operating the button s1, the operation system of the mobile air cleaner 1 is started. First, the mobile air cleaner 1 moves randomly (step S1 in FIG. 9). After that, the dust sensor 4c detects whether the air in the room is dirty (step S2).

Next, based on the detection information of the dust collecting sensor 4c, it is determined by the operation device 11a of the action control unit 11 whether or not the air cleaning operation is necessary (step S3). When it is judged that the air cleaning operation is not required (step S3, No), the rotation of the fan 6 is turned OFF, and after a certain period of time has passed, it returns to the power supply stand 10a which is the base ( Refer to Fig. 8) (step S4). After that, return to step S1. On the other hand, when it is determined that the air cleaning operation is necessary (step S3, Yes), the front person detection means 4a detects whether there is a person in front of the mobile air cleaner 1 (step S3, Yes). S5).

Based on the information of the front person detecting means 4a, the calculation device 11a determines whether there is a person ahead (step S6). When it is determined that there is no human in the front system (step 6, No), the fan 6 system is operated weakly (step S7), and the process returns to step S1. When a person is not detected by the front person detection means 4a, since the fan 6 is operated weakly, even when there is a person behind the main body 1H, there will be no The situation where the powerful exhaust hits the person behind.

On the other hand, when it is determined that there is a human in the front (Step 6, Yes), the rear human detection means 4b detects whether there is a human in the back of the mobile air cleaner 1 (Step S8). Next, the calculation device 11a determines whether there is a person behind the mobile air cleaner 1 based on the information of the rear person detecting means 4b (step S9).

When it is determined that there is no human being in the rear system (step 9, Yes), the fan 6 system is operated weakly (step S10), and the process returns to step S1. When it is determined that there is a person behind (step 9, No), it is determined whether the amount of activity of the person is high (step S11).

When the amount of human activity is not high (step 11, No), the fan 6 is operated weakly (step S12). When the amount of human activity is not high, the operating volume of the mobile air cleaner 1 is reduced. The so-called amount of human activity is not high, for example, when sleeping, reading, watching TV or computer, talking, etc. When the amount of human activity is not high, the rotation speed of the fan 6 is reduced in a way that does not hinder human activity. After that, return to step S1.

When the amount of human activity is high (step 11, Yes), the fan 6 is forced to operate (step S13). When the amount of human activity is high, the system can also increase the operating volume. The so-called people’s activity is high, for example, when changing clothes, looking for things, folding clothes, etc., when quietness is not important. In this case, the rotation speed of the fan 6 is increased. After that, return to step S1. As shown in steps S12 and S13, since the operating volume of the mobile air purifier 1 is switched in accordance with the amount of human activity, the air can be cleaned without discomfort to people. Running.

In addition, in the control of FIG. 9 of the mobile air purifier 1, when the capacity of the battery 5b decreases, it is commanded by the action control unit 11, and as shown in FIG. Move to the power supply station 10 and charge the storage battery 5b, and then continue the control flow shown in FIG. 9. If the power is turned off by the operation button s1 of the mobile air cleaner 1, the control system of FIG. 9 ends.

According to the above configuration, when the person is located at the side of the main body discharge port 2o of the mobile air cleaner 1 and the person is not in a mobile state, the fan 6 is set to weakly operate and the exhaust is reduced. However, when the human body is in an active state, since the system can also increase the operating volume, the fan 6 is set to operate strongly. Since the operation of the mobile air purifier 1 is changed in accordance with the behavior of the person, the air can be cleaned in the vicinity of the person without discomfort.

Therefore, even when there are plural or singular persons in the room, the mobile air cleaner 1 can be operated without giving a sense of discomfort to the persons. Therefore, the air cleaning operation can be performed in accordance with the indoor conditions. Therefore, the air purifying operation of the mobile air purifier 1 can be performed while maintaining the indoor comfort.

＜＜Modifications＞＞ The embodiment is effective control when there are singular or plural persons in the room, but this modification is effective control when there is one person in the room. In Fig. 10, a schematic top view of a mobile air cleaner 1A of a modified example is shown. The mobile air purifier 1A of the modified example is constructed by using the human detection means only as the front human detection means 14a. Since the other configuration is the same as that of the mobile air cleaner 1 of the embodiment, the same reference numerals are attached to the same components, and detailed descriptions are omitted.

The mobile air cleaner 1A of the modified example is provided with a front person detecting means 14a at the front part and a main body discharge port 2o at the rear part. Therefore, as shown by the white arrow in Fig. 10, the cleaned exhaust is discharged from the main body discharge port 2o. With the front human detection means 14a set at the front and the body outlet 2o at the rear, it is possible to detect people by the front human detection means 14a while facing away from the body outlet 2o and there is no human To exhaust.

In FIG. 11, the control block diagram of the mobile air cleaner 1A of the modified example is shown. The control system of the mobile air cleaner 1A includes a power supply unit 10, an action control unit 11A, and an action control unit 12. The behavior control unit 11A is provided with an arithmetic device 11a. The calculation device 11a is inputted with detection signals (information) from the front person detecting means 14a and the dust collection sensor 4c, and performs calculations that determine the operation of the mobile air cleaner 1A. The front person detecting means 14a is the same as the embodiment, and is composed of any one of an ultrasonic sensor, an infrared sensor, an infrared camera, a laser sensor, and a ToF sensor.

＜Control of the mobile air cleaner 1A of the modified example＞ Next, the control of the mobile air cleaner 1A will be described. The operation of the mobile air cleaner 1A is determined by the operation control unit 11A, and the operation is controlled by the operation control unit 12. In FIG. 12, the control flow of the mobile air cleaner 1A of the modified example is shown.

If the mobile air cleaner 1A is turned on by operating the button s1, the operation system of the mobile air cleaner 1A is started. The mobile air cleaner 1A moves randomly in the house (step S21 in FIG. 12). After that, it is detected by the dust collecting sensor 4c whether the air in the room is dirty (step S22). Next, the calculation device 11a determines whether the air cleaning operation is necessary based on the detection information of the dust collection sensor 4c (step S23).

When it is determined that the air cleaning operation is not necessary (step S23, No), 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 (step S23, Yes), the front person detecting means 14a detects whether there is a person in front of the mobile air cleaner 1 (step S23, Yes). S25).

After that, it is determined whether there is a person in the front based on the information of the front person detecting means 14a (step S26). When it is determined that there is no human being in the front system (step 26, No), the fan 6 system is forced to operate (step S27). After that, it returns to step S21. On the other hand, when it is determined that there is a human being in the front (step 26, Yes), the mobile air cleaner 1A rotates and the main body discharge port 2o is directed in a direction where there is no human (step S28). Since the main body exhaust port 2o is oriented in a direction where no human is present, the exhaust does not touch a human.

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

On the other hand, when it is determined that the amount of human activity is high (step 29, Yes), the fan 6 is energized (step S31), and the process returns to step S21. The so-called human activity is high, for example, when changing clothes, looking for items, folding clothes, etc., when quietness is not important. As shown in steps S30 and S31, since the operation of the fan 6 is switched in accordance with the level of human activity, it is possible to perform an air cleaning operation corresponding to the human activity.

In addition, in the control of FIG. 12 of the mobile air purifier 1A, when the capacity of the battery 5b decreases, the movement control unit 11A is instructed to move autonomously to the supply in the same manner as in FIG. The station 10a charges the battery 5b. After that, the control flow shown in Figure 12 is continued. If the mobile air cleaner 1A is turned off by operating the button s1, the control system of FIG. 12 ends.

According to the above configuration, when there are no people in the house, the fan 6 performs air cleaning by strong operation. When there are people, the mobile air cleaner 1A is controlled so that the exhaust does not touch people. However, when the amount of human activity is high, the fan 6 is operated strongly, and when the amount of human activity is low, the fan 6 is operated weakly. Therefore, the air cleaning operation is performed corresponding to the movements of the people in the house. Therefore, it is possible to maintain the comfort corresponding to human activities even under the operation of the mobile air purifier 1A. In addition, even when the person is a plurality of people, the control of the above-mentioned modification can be used.

＜＜Modification 1＞＞ The mobile air purifier 1B of Modification 1 (refer to Fig. 10) is the same as the Modification. It is constructed by using the human detection means only as the front human detection means 14a, and when there are people At this time, the main body outlet 2o is directed to the direction where there is no human being and is set as a weak operator. The other configuration is the same as that of the mobile air cleaner 1A of the modified example. Therefore, the same components are assigned the same reference numerals, and detailed descriptions are omitted.

Modification 1 is the same as the modification, and is effective control when there is one person in the room. The control of the mobile air cleaner 1B of Modification 1 will be described. The mobile air cleaner 1B is the same as in FIG. 11, the action of the mobile air cleaner 1B is determined by the action control unit 11A, and the action is controlled by the action control unit 12.

In FIG. 13, the control flow of the mobile air cleaner 1B of Modification 1 is shown. Since steps S41 to S48 in FIG. 13 are the same as steps S21 to S28 in FIG. 12, the description is omitted.

At step S46 in FIG. 13, when it is determined that there is a human (step 46, Yes), the mobile air cleaner 1B rotates and the main body discharge port 2o is directed in a direction where no human is present (step S48). In addition, the fan 6 is operated weakly (step S49), and the process returns to step S41. When a person is detected, since the main body outlet 2o is directed in a direction where no person exists, and the operation is set to be weak, the operation volume entering the human ear is low.

In addition, in the control of FIG. 13 of the mobile air purifier 1, when the capacity of the battery 5b decreases, the movement control unit 11 is instructed to move autonomously to the supply in the same manner as in FIG. The station 10a charges the battery 5b. After that, the control flow shown in Fig. 13 is continued. If the mobile air cleaner 1B is turned off by operating the button s1, the control system of FIG. 13 ends.

According to the above configuration, when there are no people in the house, the fan 6 performs air cleaning by strong operation. When there are people in the room, the direction is changed so that the exhaust of the mobile air purifier 1B does not touch people, and the fan 6 is set to operate weakly. Therefore, the air cleaning operation is performed in a way that the exhaust gas does not touch people in the house. Therefore, it is possible to maintain comfort even under the operation of the mobile air cleaner 1B. In addition, even in the case where there are a plurality of people, the control of Modification 1 described above can be used.

＜＜Other embodiments＞＞ 1. In the foregoing embodiment, although the description is directed to the case where the front human detection means 4a is provided at the front of the main body 1H and the rear human detection means 4b is provided at the rear of the main body 1H. , As long as the front person detecting means 4a is arranged on one side of the main body 1H, and the rear person detecting means 4b is arranged on the other side of the main body 1H, the front and rear parts are not absolutely necessary. . By arranging the front person detecting means 4a on one side of the main body 1H and the rear person detecting means 4b on the other side of the main body 1H, it is possible to place the front person detection means 4a on one side and the other side of the main body 1H. The presence of someone is detected and the air cleaning operation is performed.

2. In the foregoing Modification and Modification 1, although the description is directed to the case where the front human detection means 4a is provided at the front of the main body 1H and the main body discharge port 2o is provided at the rear of the main body 1H, however, only If the front person detecting means 14a is arranged on one side of the main body 1H, and the main body outlet 2o is arranged on the other side of the main body 1H, the front and rear parts are not absolutely necessary. By arranging the front human detection means 14a on one side of the main body 1H and the main body outlet 2o on the other side of the main body 1H, it becomes possible to detect the presence of a human on one side of the main body 1H Come out and perform air cleaning operation.

3. Although the above-mentioned embodiment, modification, and modification 1 have been used to describe each configuration, it is also possible to combine these configurations as appropriate. For example, these configurations can also be selected and combined appropriately, and set as a configuration for switching the operation mode by a switching button. With this, it is possible to select an operation mode suitable for the state of the room.

4. The configuration described in the foregoing embodiment, modification, and modification 1 is only one example of the present invention, and various other forms can be adopted within the scope described in the patent application.

1. 1A, 1B: mobile air purifier 2: Exterior cover (frame) 2i: body suction port (suction port) 2o: body discharge port (discharge port) 3: filter 4a: Front person detection method (first person detection method) 4b: Rear people detection method (2nd person detection method) 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: Action Control Department (control means) 12: Action control unit (control means) 14a: Front human detection means (human detection means)

[Figure 1] (a) is a perspective view showing the mobile air purifier of the embodiment of the present invention, and (b) is the external perspective view of the mobile air purifier of the embodiment when the top cover is opened. [Figure 2] It is the top view of the mobile air cleaner of the embodiment. [Fig. 3] It is the I-I sectional view of Fig. 2 of the mobile air cleaner of the embodiment. [Figure 4] (a) is a side view of the mobile air purifier of the embodiment, (b) is a cross-sectional view of (a) II-II, and (c) is a cross-sectional view of (a) III-III . [Figure 5] It is the bottom view of the mobile air cleaner. [Figure 6] This is the rear view of the mobile air cleaner. [Figure 7] is the control block diagram of the mobile air purifier. [Figure 8] is a perspective view of the mobile air cleaner moving to the power supply station. [Figure 9] is the control flow chart of the mobile air cleaner. [Figure 10] It is a schematic top view of a mobile air purifier of a modified example. [Figure 11] is the control block diagram of the mobile air cleaner of the modified example. [Figure 12] is the control flow chart of the mobile air cleaner of the modified example. [Figure 13] is the control flow chart of the mobile air cleaner of Modification 1.

1: Mobile air purifier

1H: body

1r: means of walking

1w: means of air supply

2: Exterior cover (frame)

2f: upper cover

2i: body suction port (suction port)

2o: body discharge port (discharge port)

3: filter

3a: bottom face

3h: Filter handle

4: Sensor

4a: Front person detection method (first person detection method)

4b: Rear people detection method (2nd person detection method)

4c: Dust sensor (dust detection means)

5a: Control board

5b: battery

6: Fan

6h: fan blade

6h1: upper end face

6h2: bottom face

6i: suction port

6m: fan motor

7: vortex tube

9k: rear wheels

9m1: Left wheel motor (drive motor)

9s1: left wheel (wheel)

Claims (8)

A mobile air purifier, characterized in that it is provided with: wheels to move the frame; and a drive motor to drive the wheels; and a filter screen, which is arranged in the frame and moves from the suction port Removal of dust in the indoor air sucked in; and a fan, which is arranged to suck in air through the aforementioned suction port through the aforementioned filter; and a fan motor, which drives the aforementioned fan; and the first person detection means, is It is installed on one side of the aforementioned frame and detects whether there is a person; and the second person detection means is installed on the other side of the aforementioned frame and detects whether there is a person; and The outlet is to discharge the air after the dust has been removed; and the control means is based on the information of the first person detecting means and the second person detecting means to control the drive motor and the fan motor For control; and dust detection means to detect dust in the air, the aforementioned outlet is set on the other side of the aforementioned frame, the aforementioned control means, when detected by the aforementioned dust detection means Dust, and detect the presence of humans by the aforementioned first person detection means, and detect the absence of humans by the aforementioned second person detection means When the amount of activity of the aforementioned person is high, control is performed to increase the rotation speed of the aforementioned fan motor, and when the amount of movement of the aforementioned person is not high, the rotation of the aforementioned fan motor The speed is lowered to control. For example, in the mobile air purifier described in the first item of the scope of patent application, the aforementioned control means is used to detect the absence of human beings by the aforementioned first human detection means, so that the fan motor is The rotation speed is controlled by a way to be the low among high and low. For example, the mobile air purifier described in the first item of the scope of patent application, wherein the aforementioned control means detects the presence of a person by the aforementioned first person detection means, and is performed by the aforementioned second person detection means When a human presence is detected, control is performed so that the rotation speed of the aforementioned fan motor becomes low or high. For example, the mobile air purifier described in item 1 of the scope of patent application, wherein the first person detecting means is set in the front part of the frame, and the second person detecting means and the discharge port are It is set at the back of the aforementioned frame. A mobile air purifier, characterized in that it is provided with: wheels to move the frame; and a drive motor to drive the wheels; and a filter screen, which is arranged in the frame and moves from the suction port Remove dust from the sucked indoor air; and a fan, which is arranged to suck in air through the aforementioned suction port through the aforementioned filter; and a fan motor, which drives the aforementioned fan; and a human detection means, which detects Whether there is a human being; and the exhaust port, which discharges the air after the dust is removed; and the control means, based on the information of the human detection means, to control the driving motor and the fan motor; and Dust detection means detects dust in the air, and the aforementioned control means, when a person is detected by the aforementioned human detection means, so that the aforementioned outlet is directed in a direction where there is no such person The aforementioned method is used to control the aforementioned wheels; the aforementioned control means, when dust is detected by the aforementioned dust detection means, and a person is detected by the aforementioned human detection means, so that the aforementioned outlet direction does not exist In the direction of the aforementioned person, when the amount of movement of the person is high, the rotation speed of the fan motor is increased, and when the amount of movement of the person is not high, the rotation speed of the fan motor is decreased. For example, the mobile air purifier described in item 5 of the scope of patent application, wherein the aforementioned control means is when the human condition is detected by the aforementioned human detection means, so that the aforementioned outlet direction does not exist. The direction of the person and the rotation speed of the aforementioned fan motor can be controlled in a high or low way. As for the mobile air purifier described in item 5 of the scope of patent application, the human detection means is arranged on one side of the frame, and the discharge port is arranged on the other side of the frame. At one side. A mobile air purifier, characterized in that it is provided with: wheels to move the frame; and a drive motor to drive the wheels; and a filter screen, which is arranged in the frame and moves from the suction port Removal of dust in the inhaled indoor air; and a fan, which is installed at the downstream side of the flow of air passing through the aforementioned filter; and a fan motor, which drives the aforementioned fan; and a human detection means, which is installed At the front of the aforementioned frame, and detect whether there are people; and The dust detection means is to detect the dust in the air; and the discharge port is set at the back of the aforementioned frame and discharges the air after the aforementioned dust is removed; and the control means is based on the aforementioned person The information of the detecting means is used to control the aforementioned driving motor and the aforementioned fan motor.

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