TW202010985A - Mobile air purifier - Google Patents

Abstract

This mobile air purifier (1) is provided with: wheels (9s1, 9s2) for moving a housing (2); drive motors (9m1, 9m2) for driving the wheels (9s1, 9s2); a filter (3) disposed in the upper part of the housing (2) and removing dust in indoor air; a centrifugal impeller (6) provided on the downstream side of the flow of air having passed through the filter (3); and an impeller motor (6m) for driving the centrifugal impeller (6). Air having flowed in from a body intake opening(2i) and passed through the filter (3) is deflected at substantially a right angle and flows into an impeller intake opening (6i) in the centrifugal impeller (6). The lower end surface (6h2) of the impeller (6h) of the centrifugal impeller (6) is provided below the lower end surface (3a) of the filter (3).

Description

Mobile air cleaner

The present invention relates to a mobile air cleaner.

Since the fixed air cleaner of the prior art is fixedly installed, it is not possible to clean the dirty spots of the indoor air, and the power consumption required for cleaning is increased. In contrast to this, the self-propelled air purifier system can be moved to a place where the air is dirty and cleaned.

As a self-propelled air cleaner, there is one disclosed in Patent Document 1. In paragraph 0008 of Patent Document 1, as a technical issue, it is stated that "providing a method for treating contaminants in a living space with a treatment agent so as not to leave excess treatment agent in the living space as much as possible To deal with pollutant disposal equipment and the use of air purification and maintenance system."

In addition, there are those disclosed in Patent Document 2. In paragraph 0007 of Patent Document 2, the effect of the invention is described as "In the self-propelled air purifier, since the air inlet is provided at the central portion of the upper surface of the frame, and the side or The upper and outer edges and sides are provided with exhaust ports. Therefore, the flow of air exhausted from the self-propelled air cleaner contains horizontal components. As a result, it is possible to quickly Clean the air in the middle space of the room, that is, the so-called living space (replacement caused by the clean air). In addition, because the first filter member and the second filter member are provided, it can be more The air is surely cleaned. Furthermore, since the first filter member and the second filter member are rotated by the motor, it is possible to achieve both quietness and high dust collection. At the same time, the fan blade car, The first filter member and the second filter member are easily integrated, and the content of miniaturization of the self-propelled air cleaner can be achieved. [Prior Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Application Publication No. 2014-110857 (Figure 6, paragraph 0008, etc.) [Patent Document 2] WO2018-074052 (Figure 2, paragraph 0007, etc.)

[Problems to be solved by the invention]

In addition, the mobile air cleaner has a problem that the running sound is noisy when it starts to move forward and stops. In addition, there is a problem that if the flow velocity of the air flowing into the fan van is not uniform, the wind cut noise becomes large.

Therefore, Patent Document 1 is provided with dust at the inner side of the recovery port 42 having a circular outer diameter at the upper portion of the recovery container 41 provided in the frame as shown in FIG. 6 thereof. The filter 44 is provided with a fan van 50 of an axial fan van below the dust filter 44. In this configuration, the flow velocity when passing through the dust filter 44 becomes larger, and wind cut noise is generated, and in order to suppress the wind cut noise, a sufficient flow path is required at the upstream side of the fan van 50 The area has a problem that it becomes larger in the height direction on the upstream side.

Patent Document 2 is generally as shown in FIG. 2, since the first filter member 60 and the second filter member 70 are provided downstream of the blade van 50, so there will be accumulation of dust and the like The problem in the box 80. In addition, since the first and second screen members 60 and 70 are integrally formed with the blade van 50, it is difficult to achieve balance, and there is a problem that sounds due to imbalance are additionally generated.

The present invention was created in view of the above situation, and its object is to provide a mobile air cleaner with high quietness and compactness. [Means to solve the problem]

In order to solve the aforementioned problems, the first mobile air cleaner of the present invention is characterized by comprising: wheels to move the frame; and a driving motor to drive the wheels; and a filter to be arranged Above the frame, remove the dust from the air in the room; and the centrifugal fan car is installed on the downstream side of the flow of air passing through the filter; and the fan car motor is driven In the centrifugal fan van, the air that has flowed in from the suction port of the main body and passed through the filter is deflected at a right angle and flows into the inlet of the fan van of the centrifugal fan van. The lower end surface of the fan van is arranged below the lower end surface of the aforementioned filter screen.

The mobile air cleaner of the second aspect of the present invention is characterized by comprising: wheels to move the frame; and a driving motor to drive the wheels; and a filter to be arranged in the frame The upper part, and remove the dust from the air in the room; and the centrifugal fan car, which is installed on the downstream side of the flow of air passing through the filter; and the fan car motor, which drives the centrifugal fan car The flow of air flowing in from the suction port of the body upstream of the centrifugal fan van and the flow of air downstream of the centrifugal van van are reversed in the radial direction of the centrifugal van van.

The mobile air cleaner of the third aspect of the present invention is characterized by comprising: wheels for moving the frame; and a driving motor for driving the wheels; and a filter for being arranged in the frame The upper part, and remove the dust from the air in the room; and the centrifugal fan car, which is installed on the downstream side of the flow of air passing through the filter; and the fan car motor, which drives the centrifugal fan car , Above the body discharge port through which the air passing through the filter is discharged, is arranged with a body suction port into which the air in the room flows, the air path of the air discharged from the body discharge port, and from The air path of the air flowing into the suction port of the body is in a horizontal direction.

The mobile air cleaner of the fourth aspect of the present invention is characterized by comprising: wheels to move the frame; and a driving motor to drive the wheels; and a filter to be arranged in the frame The upper part, and remove the dust from the air in the room; and the centrifugal fan car, which is installed on the downstream side of the flow of air passing through the filter; and the fan car motor, which drives the centrifugal fan car Above the wheel, there is a body suction port into which air flows and a body discharge port through which air is discharged. [Effect of invention]

According to the present invention, it is possible to provide a mobile air cleaner with high quietness and compaction.

Dust and pollen in the room will fall to the ground at night. Therefore, if the mobile air purifier is operated at night while sleeping, dust, pollen, etc. that have fallen to the ground are removed, and the air can be purified. On the other hand, the mobile type air cleaner has a problem that the noise is particularly large at the time of starting forward and stopping.

Therefore, in order to operate the mobile air cleaner at night, it is necessary to suppress the noise at the time of starting forward and stopping. Furthermore, as mentioned above, it is necessary to reduce the wind-cutting noise of the fan van when the indoor air is sucked by the mobile air cleaner.

In addition, in order to remove dust and the like that fall near the ground, it is necessary to reduce the height of the mobile air cleaner. In addition, when the height of the mobile air cleaner is high, the size becomes large, and the commerciality decreases. Therefore, the object of the present invention is to mute the mobile air cleaner and reduce the height of the mobile air cleaner.

Hereinafter, the embodiment of the present invention will be described in detail with reference to the drawings as appropriate. 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 is opened.

In FIG. 2, the top view of the mobile air cleaner 1 of an embodiment is shown.

In FIG. 3, the I-I cross section of FIG. 2 of the longitudinal cross-sectional view of the mobile air cleaner 1 of an embodiment is shown.

As shown in Figs. 1(a) and (b), the mobile air cleaner 1 of the embodiment is provided with a flat, substantially cylindrical body 1H. The main body 1H of the mobile air cleaner 1 is as shown in FIG. 3 and consists of the air supply means 1w, the walking means 1r, the filter 3, the sensor 4, the control board 5a, the battery 5b, and these The cover 2 is constructed outside the package. That is, the body 1H is covered by the outer cover 2 which is a flat, slightly cylindrical frame. On the upper surface of the exterior cover 2, an upper cover 2f is attached.

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

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

In FIG. 4(a), a side view of the mobile air cleaner 1 of the embodiment is shown, and in FIG. 4(b), FIG. 4() is a cross-sectional view near the filter 3 when viewed from above. The section II-II of a) is shown in Fig. 4(c), and the section III-III of Fig. 4(a) of the cross-sectional view near the air supply means is shown.

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

As indicated by the arrow α1 in FIG. 3, the suction port 2i sucks the indoor air from the front and the side. The filter 3 removes dust and the like and becomes clean air, as shown by the arrow α2 in FIG. 3, and is discharged toward the rear from the body discharge port 2o.

The air supply means 1w shown in FIG. 3 is provided with the centrifugal fan van 6 and the fan van motor 6m and the scroll 7. The fan motor 6m is arranged coaxially with the centrifugal fan van 6 and drives the centrifugal fan van 6.

The centrifugal fan cart 6 is arranged slightly upward. The centrifugal fan cart 6 sucks air from above through the suction port 6i by rotating downward 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 centrifugal blade cart 6.

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

The traveling means 1r shown in FIG. 3 includes side wheels 9s1 and 9s2, wheel motors 9m1 and 9m2, and rear wheels 9k. The wheel motors 9m1 and 9m2 drive the side wheels 9s1 and 9s2.

In FIG. 5, the following figure shows the mobile air cleaner 1. In FIG. 6, the rear view of the mobile air cleaner 1 is shown. At the mobile air cleaner 1, a pair of side wheels 9s1, 9s2 and rear wheels 9k are provided so as to protrude downward. The side wheels 9s1 and 9s2 are tied to drive wheels, and the rear wheels 9k are tied to passive wheels.

As a power transmission means from the wheel motors 9m1 and 9m2 to the side wheels 9s1 and 9s2, a belt is used. The power from the wheel motors 9m1 and 9m2 is transmitted to the side wheels 9s1 and 9s2 via the pulleys 9p1 and 9p2, respectively.

The rear wheels 9k are fixed to the floor 2t via casters 9c. The caster 9c is rotatably held by the bottom plate 2t.

As shown in FIG. 3, above the side wheels 9s1, 9s2 and the rear wheels 9k, a body discharge port 2o and a body suction port 2i are arranged. With this, the main body 1H, the side wheels 9s1, 9s2, and the rear wheel 9k are independent of each other.

The filter 3 shown in FIGS. 3 and 4(b) includes 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 used to deodorize the filter to remove odor components. The filter 3 is attached to the inner side of the suction port 2i of the body, and is arranged in a slightly circumferential shape when viewed from above. As shown in FIG. 3, the filter screen 3 is provided at the upper side of the body 1H in the height direction.

In addition, as long as the filter 3 is provided on the upper side of the main body 1H, it may be provided continuously or intermittently.

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

In addition, the lower end surface 3a of the screen 3 arranged at the side of the mobile air cleaner 1 is arranged above the lower end surface 6h2 of the blade car 6h of the centrifugal blade car 6. In other words, the lower end face 6h2 of the blade wagon 6h of the centrifugal fan wagon 6 is arranged below the lower end face 3a of the screen 3. With this configuration, as shown in FIG. 3, the air filtered through the filter 3 can pass through the vortex tube 7 from the side without being obstructed by the filter 3 in the up-down direction The main body is discharged at 2o and discharged.

In addition, the suction port 6i of the centrifugal fan cart 6 is provided on a plane slightly flush with the lower end surface 3a of the filter screen 3. In addition, the suction port 6i of the centrifugal fan cart 6 may be further arranged inside the screen 3 to be high.

In FIG. 3 of the embodiment, the distance R from the suction port 6i of the centrifugal fan cart 6 to the outermost shell of the screen 3 is shown. With the above configuration, the distance R between the suction port 6i of the centrifugal fan cart 6 and the filter screen 3 becomes larger, and the flow velocity of the air at the suction port 6i of the centrifugal fan cart 6 can be made uniform, and It is possible to suppress the wind-cutting sound at the centrifugal fan van 6. Also, in the mobile air cleaner 1 of this embodiment, the filter 3 is provided on the side of the body 1H, and the flow of air is deflected to a slight right angle and flows into the suction of the centrifugal van 6 that faces upward. At the opening 6i, the system does not increase in height.

On the other hand, in Patent Document 1 of the prior art, as shown in FIG. 6, a planar filter (44) is arranged on the frame (41). If you want to keep the filter (44) When separated to the same distance as the distance R, the frame (41) becomes larger in the height direction.

Next, the screen area is compared between the case where the screen 3 is arranged laterally in a circumferential manner and the case where the screen (44) is arranged in a planar shape in Patent Document 1 of the prior art.

FIG. 7(a) shows a schematic view of the embodiment in which the filter 3 is arranged laterally and circumferentially. In FIG. 7(b), the filter ( 44) The schematic diagram of the case of being arranged in a plane is shown. For example, in the present embodiment, the diameter L (refer to FIGS. 3 and 7(a)) of the outermost shell of the screen 3 is 180 mm, and the height H is 50 mm (refer to FIGS. 3 and 7(a)).

濾網面積S1，根據式(1)，係為S1≒28274mm² 。The filter area S1 is expressed by the following formula (1).

The filter area S1 is S1≒28274mm ² according to formula (1).

濾網面積S2，根據式(2)，係為S2≒25447mm² 。When the equivalent diameter L=180 mm shown in FIG. 7(b) is used as in Patent Document 1, the filter screen (44) is arranged on the upper surface of the frame in a planar manner, the filter area S2 It is expressed by the following formula (2).

The filter area S2, according to equation (2), is S2≒25447mm ² .

Therefore, under the above conditions, the area S1 (≒28274 mm ² ) of the filter 3 of this embodiment becomes larger than the area S2 (≒25447 mm ² ) of the filter (44) of Patent Document 1. Therefore, in the embodiment, the flow velocity system when passing through the filter 3 becomes small, and the wind cut noise can be suppressed.

<Control System> As the sensor 4, a dust sensor 4a (see FIG. 3) for detecting dust is provided. In addition, as a sensor, in addition, an odor sensor (not shown) that detects odors, an infrared sensor (not shown) that detects obstacles, and ToF sensor (not shown) for the distance between obstacles, etc.

The control board 5a shown in FIG. 3 is supplied with power from the battery 5b. The control board 5a is based on various sensor information, and controls the fan motor 6m and the wheel motors 9m1 and 9m2. In this way, the mobile air purifier 1 is designed to clean the air in the room through the filter 3 while walking autonomously. By arranging the motors 9m1 and 9m2 for the wheels with a large weight and the motor 6m for the blade vehicles with a large weight at the lower part of the body 1H, the center of gravity of the body 1H is positioned at the lower part of the body 1H.

By arranging the center of gravity of the body 1H further below, the distance in the height direction from the contact point y1 of the ground Y to the center of gravity of the body 1H of the side wheels 9s1, 9s2 and the rear wheels 9k is shortened, so that The amplitude of the mobile air cleaner 1 when traveling is reduced. Therefore, the vibration of the mobile air cleaner 1 is suppressed. Therefore, it is possible to suppress the noise of the mobile air cleaner 1 when traveling.

<Operation section 1S> As shown in FIG. 1(a), the operation portion 1S of the mobile air cleaner 1 is disposed above the main body 1H which is a position outside the upper cover 2f. That is, the operation portion 1S is provided at the body 1H at a side portion 1h1 behind the body suction port 2i having a slightly U-shaped shape when viewed from above.

The operation unit 1S is provided with an operation button s1. The wiring s2 connected to the operation button s1 of the operation portion 1S is as shown in FIG. 2, by avoiding the body 1H at the rear side of the body U inlet 2i which is slightly U-shaped when viewed from above 1h1 is connected to the control board 5a (refer to FIG. 3). The configuration is such that the slightly circumferential filter screen 3 and the wiring s2 of the operation portion 1S do not overlap in the vertical direction when viewed from above.

Therefore, the opening and closing of the upper cover 2f does not interfere with the electrical connection of the operation portion 1S. By this, as shown in FIG. 1(b), the exchange of the filter 3 can be performed independently of the wiring s2 by using the space where the wiring s2 where the operation portion 1S does not exist by opening the upper cover 2f Proceed. In addition, the maintenance work of the wiring s2 of the operation unit 1S can also be performed independently of the filter 3 using a space that does not overlap with the filter 3.

In addition, if the operation unit 1S is disposed outside the filter 3, the filter 3 can be exchanged independently of the wiring s2 of the operation unit 1S, so the convenience of use is preferable. Therefore, when there are many exchanges of the filter screen 3, it is preferable that the operation part 1S is arrange|positioned on the outer side of the filter screen 3.

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

The centrifugal van 6 is rotated by driving the motor 6m for the van shown in FIG. 3 (arrow α3 in FIG. 3). By the rotation of the centrifugal fan cart 6, as shown by the arrow α1 in FIG. 3, the air in the room is drawn into the body 1H from the body suction port 2i.

The air flowing in from the main body suction port 2i passes through the filter 3 to remove dust, odor, etc., and is cleaned. 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 centrifugal fan cart 6. As shown in FIG. 3, inside the centrifugal fan cart 6, the air is deflected at a right angle from the bottom to the side (arrow α4 in FIG. 3), and reaches the centrifugal fan cart 6 7 vortex tubes at the periphery. The air that reaches the vortex tube 7 is as shown by the arrow α5 in FIG. 4(c). The scroll-shaped vortex tube 7 decelerates inside the vortex tube 7 and is boosted. After that, it is discharged from the body 2o is released to the outside (indoor) (arrow α2 in Fig. 3).

As shown in FIG. 3, the flow of air will be upstream and downstream of the centrifugal fan cart 6, and the vector of the flow of air in the radial direction will become the reverse direction.

According to the above configuration, by making the screen 3 into a slightly circumferential shape, the screen area can be increased. Therefore, the velocity of the indoor air flowing into the filter 3 is reduced, and the wind-cut sound system is suppressed. In addition, as shown in FIG. 3, the filter screen 3 is provided above, and the lower end surface 6h2 of the blade car 6h of the centrifugal blade car 6 is positioned below the lower end surface 3a of the filter screen 3. By this, the flow of air upstream of the centrifugal fan cart 6 (arrow α1 in FIG. 2) and the flow of air downstream of the centrifugal fan cart 6 (arrow α2 in FIG. 2) are The radial direction is the reverse direction.

Also, above the body discharge port 2o through which the air passing through the filter 3 is discharged, a body suction port 2i that allows air in the room to flow in is discharged from the body discharge port 2o The air path of the air and the air path of the air flowing in from the main body suction port 2i are set to the lateral direction when viewed in the radial direction or side view of the centrifugal van 6.

With this, the height of the mobile air cleaner 1 can be reduced. Furthermore, the mobile air cleaner 1 can suck indoor air near the floor Y 30 cm above the floor Y where the dust in the room floats. In addition, the air path of the air discharged from the main body outlet 2o and the air path of the air flowing in from the main body inlet 2i can also be viewed from the radial direction or the lateral direction of the centrifugal van 6 And make a slight tilt.

In addition, since the filter 3 is provided at the top, and the air passing through the filter 3 is biased at a slightly right angle and flows into the suction port 6i of the centrifugal fan cart 6, the filter 3 and the centrifugal fan can be separated The distance between the suction ports 6i of the car 6 is set to be long. Therefore, the velocity of the air flowing into the suction port 6i becomes uniform, and the wind-cut sound system is suppressed.

Moreover, the suction of the filter 3 and the centrifugal fan car 6 is obtained by the distance from the filter 3 provided in a circle shape to a slightly right angle and reaching the suction port 6i of the centrifugal fan car 6 The distance between the ports 6i is therefore a mobile air cleaner 1 that can be compacted in the height direction. In addition, the air blowing means 1w (the centrifugal fan van 6, the fan van motor 6m, the scroll 7) is provided at a lower position compared to the filter 3, and the mass is larger. By this, the position of the center of gravity of the main body 1H is lowered, and by this, it is possible to suppress the rocking motion of the mobile air cleaner 1 at the start of advance, the stop, and the direction change.

Therefore, it is a mobile air cleaner 1 capable of walking and operating stably. Furthermore, as shown in FIG. 2, the body suction port 2i is slightly U-shaped, and the body discharge port 2o is provided below the position where the body suction port 2i does not exist. By this, it is possible to suppress the situation that the clean air exhausted from the main body discharge port 2o flows in again from the main body suction port 2i, and it is possible to efficiently clean the room air. Therefore, it is possible to realize a mobile air cleaner 1 with high quietness and compaction.

＜＜Modification 1＞＞ In FIG. 8, the top view of the mobile air cleaner 11 of the modification 1 is shown. The mobile air cleaner 11 according to Modification 1 is a ring-shaped air inlet 22i provided around the entire body. Other configurations are the same as the mobile air cleaner 1 of the embodiment.

Inside the body suction port 22i, a screen 23 is provided. The operation portion of the mobile air cleaner 11 is preferably arranged outside the filter 23. This is because the filter 23 and the operating part can be removed independently of each other, and the filter 23 can be exchanged without regard to the operating part. In addition, it is because the operation part and the screen 23 can be detached independently from each other, and the operation part can be repaired without regard to the screen 23.

According to the above configuration, the room air can be sucked in from the body suction port 22i of the entire circumference of the side of the mobile air cleaner 11. In addition, since the screen 23 is provided inside the main body suction port 22i, the area of the screen 23 can be increased. Therefore, since the area of the filter screen 23 can be increased, it is possible to suppress wind cut noise.

＜＜Modification 2＞＞ In FIG. 9, a cross-sectional view of the mobile air cleaner 21 of Modification 2 viewed from above is shown. The mobile air cleaner 21 of Modification 2 is one in which the main body outlet 21o is provided on one side. Other configurations are the same as the mobile air cleaner 1 of the embodiment.

In this case, it is desirable to provide the body suction port 2i if there is no position of the body discharge port 21o when viewed from above, for example, at least one of the other side, the front, and the rear. For example, the main body suction port 2i is C-shaped when viewed from above, and is arranged on the other side, front, and rear where there is no main body discharge port 21o when viewed from above.

FIG. 10 shows a cross-sectional view of the mobile air cleaner 21A of the other example of Modification 2 viewed from above. The mobile air cleaner 21A of the other example of the modification 2 is one in which the main body outlet 21o is provided in front. Other configurations are the same as the mobile air cleaner 1 of the embodiment.

In this case, it is desirable if the body suction port 2i is provided if there is no position of the body discharge port 21o when viewed from above, for example, at least one of the rear and both sides. For example, the main body suction port 2i is C-shaped when viewed from above, and is arranged behind and on both sides where there is no main body discharge port 21o when viewed from above.

According to the configuration of Modification 2, when the mobile air cleaner 21 is operated, the air is discharged from a single direction, so it is possible to control and clean the indoor air while paying attention to the direction of air discharge.

＜＜Modification 3＞＞ In FIG. 11, a cross-sectional view of the vicinity of the air blowing means viewed from above of the mobile air cleaner 31 of Modification 3 is shown. The mobile air cleaner 31 of Modification 3 is configured to discharge cleaned air from the entire circumference of the side. Other configurations are the same as the mobile air cleaner 1 of the embodiment.

At the mobile air cleaner 31, a fan diffuser 36f with a dynamic pressure changed to a static pressure is installed around the centrifugal fan cart 6. In addition, the body outlet 31o is provided around the entire circumference of the side portion of the mobile air cleaner 31. As a result, the air purified by the filter 3 is discharged from the body outlet 31o of the entire circumference of the side of the mobile air cleaner 31 as shown by the arrow α8 in FIG. 11.

According to the above configuration, since the cleaned air is discharged from the entire circumference of the side portion, the amount of clean air can be increased.

＜＜Modification 4＞＞ In FIG. 12, the cross-sectional view of the mobile air cleaner 41 of the modification 4 is shown. The mobile air cleaner 41 of Modification 4 is configured to discharge clean air downward.

The other structure is the same as the mobile air cleaner 1 of the embodiment, and therefore, the same element symbol is added for reference, and the detailed description is omitted. In the mobile air cleaner 41 of Modification 4, the side of the centrifugal van 6 having the suction port 6i facing upward is covered by the casing 2g. Also, at the lower side of the centrifugal fan cart 6, the body discharge port 41o is provided at the entire circumference or a part of the entire circumference.

With this configuration, the indoor air flows in from the main body suction port 2i on the upper side of the mobile air cleaner 41 (arrow α1 in FIG. 12 ). The inflowing air passes through the filter 3 to remove dust and the like and is cleaned. After the cleaned air passes through the filter 3, it is deflected from the side toward the bottom and slightly deflected at a right angle, and reaches the centrifugal fan cart 6. The air whose pressure is increased by the centrifugal fan van 6 is discharged from the main body discharge port 41o toward the lower side of the mobile air cleaner 41.

According to the above configuration, the cleaned air is discharged from below the mobile air cleaner 41, so the exhaust air system does not directly touch the user. Therefore, the mobile air cleaner 41 can be operated without paying attention to the air discharge direction.

<<Other embodiments>> 1. Although various structures have been described based on the foregoing embodiments and modification examples 1 to 4, the various structures may be combined as appropriate. 2. In the foregoing embodiments and Modifications 1 to 4, the case where the centrifugal fan cart 6 is arranged upward is described, but it may be arranged to be inclined from the upward direction . 3. As described in the foregoing embodiment and Modification 1, the body suction ports 2i and 22i may be provided at a part or at the entire circumference. When the body suction port 2i is provided at a part, the location is arbitrary. 4. The configurations described in the foregoing embodiments and modification examples 1 to 4 are only examples of the present invention, and various other forms can be adopted within the scope described in the scope of the patent application.

1, 11, 21, 21A, 31, 41: mobile air cleaner 2: Exterior cover (frame body) 2i, 22i: body suction port 2o, 21o: body outlet 3: filter 3a: Under the filter 6: Centrifugal fan van 6i: upper end face of fan van (suction port) 6h2: Underside of fan blade car 6m: fan blade motor 9m1, 9m2: wheel motor (driving motor) 9s1, 9s2: side wheels (wheels) Y: ground

[Figure 1] (a) is a perspective view of the appearance of a mobile air cleaner according to an embodiment of the present invention, and (b) is a perspective view of the appearance of the mobile air cleaner when the upper cover is opened. [Figure 2] This is a top view of a mobile air cleaner of an embodiment. [FIG. 3] It is the I-I sectional view of FIG. 2 which is the longitudinal sectional view of the mobile air cleaner of an embodiment. [Figure 4] (a) is a side view of the mobile air cleaner of the embodiment, (b) is a cross-sectional view of (a) II-II cross-sectional view when viewed from above on the filter screen, (c ) Is the III-III cross-sectional view of (a) of the cross-sectional view near the air supply means. [Figure 5] This is the bottom view of the mobile air cleaner. [Figure 6] This is the rear view of the mobile air cleaner. [FIG. 7] (a) is a schematic diagram of the case where the filter is arranged laterally and circumferentially in the embodiment, and (b) is a schematic diagram of the case where the filter is arranged in a planar shape in Patent Document 1. [Fig. 8] This is a top view of a mobile air cleaner according to Modification 1. [FIG. 9] This is a cross-sectional view of the mobile air cleaner of Modification 2 viewed from above. [Fig. 10] This is a cross-sectional view of a mobile air cleaner of another example of Modification 2 viewed from above. [FIG. 11] This is a cross-sectional view of the vicinity of the air blowing means of the mobile air cleaner of modification 3. [Fig. 12] This is a cross-sectional view of a mobile air cleaner of modification 4.

1: Mobile air cleaner

1H: Ontology

1h1: rear

2: Exterior cover (frame body)

2i: body suction port

2f: upper cover

s1: operation buckle

s2: wiring

1S: Operation Department

Claims (11)

A mobile air cleaner, characterized by: Wheels to move the frame; and The driving motor drives the aforementioned wheels; and The filter is arranged above the aforementioned frame and removes dust from the air in the room; and The centrifugal fan van is provided on the downstream side of the flow of air passing through the aforementioned filter screen; and The motor for fan van drives the aforementioned centrifugal fan van, The air that has flowed in from the suction port of the main body and passed through the filter is biased at a slightly right angle and flows into the suction port of the centrifugal fan van, The lower end surface of the fan cart of the aforementioned centrifugal fan cart is disposed below the lower end face of the aforementioned filter screen. A mobile air cleaner, characterized by: Wheels to move the frame; and The driving motor drives the aforementioned wheels; and The filter is arranged above the aforementioned frame and removes dust from the air in the room; and The centrifugal fan cart is provided on the downstream side of the flow of air passing through the aforementioned filter screen; and The motor for fan van drives the aforementioned centrifugal fan van, The flow of air flowing in from the body suction port upstream of the centrifugal fan van and the flow of air downstream of the centrifugal van van are reversed in the radial direction of the centrifugal van van. A mobile air cleaner, characterized by: Wheels to move the frame; and The driving motor drives the aforementioned wheels; and The filter is arranged above the aforementioned frame and removes dust from the air in the room; and The centrifugal fan cart is provided on the downstream side of the flow of air passing through the aforementioned filter screen; and The motor for fan van drives the aforementioned centrifugal fan van, Above the body discharge port through which the air passing through the filter is discharged is provided with a body suction port through which air in the room flows in, The air path of the air discharged from the main body discharge port and the air path of the air flowing from the main body suction port are lateral directions when viewed in the radial direction or side view of the centrifugal van. A mobile air cleaner, characterized by: Wheels to move the frame; and The driving motor drives the aforementioned wheels; and The filter is arranged above the aforementioned frame and removes dust from the air in the room; and The centrifugal fan van is provided on the downstream side of the flow of air passing through the aforementioned filter screen; and The motor for fan van drives the aforementioned centrifugal fan van, Above the wheel, a body suction port into which air flows and a body discharge port through which air is discharged are arranged. The mobile air cleaner as described in item 1 or item 2 of the patent application scope, where, The aforementioned body suction port is slightly U-shaped when viewed from above, When viewed from above, there is no position where the body suction port is located and below the body suction port, a body discharge port is provided to allow the purified air to be discharged. The mobile air cleaner as described in item 3 or item 4 of the patent application scope, where, The aforementioned body suction port is slightly U-shaped when viewed from above, The body discharge port is provided at a position where the body suction port does not exist when viewed from above and is lower than the body suction port when viewed from the side. The mobile air cleaner as described in any one of the items 1 to 4 of the patent application scope, wherein, The aforementioned body suction port is formed in a slightly circumferential shape. The mobile air cleaner as described in item 1 or item 2 of the patent application scope, where, The aforementioned body suction port and the body discharge port through which the air is discharged are respectively arranged to cover the entire circumference or partially. The mobile air cleaner as described in item 3 or item 4 of the patent application scope, where, The body suction port and the body discharge port are respectively arranged to cover the entire circumference or partially. The mobile air cleaner as described in item 1 or item 2 of the patent application scope, where, The system is provided with a body discharge port facing downward to allow air to be discharged. The mobile air cleaner as described in item 3 or item 4 of the patent application scope, where, The body outlet is directed downward to discharge air.

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