JP7226483B2 - Air cleaner - Google Patents

Description

The present invention relates to air cleaners.

Patent Literature 1 discloses an air purifier in which an air inlet, an air outlet, and a blower are housed in a main body. The blower draws in air from the suction port and causes air to flow out from the blowout port.

Utility Model Registration No. 3226219

One method for increasing the amount of air sucked per unit time in an air purifier is to increase the diameter of the fan of the blower. However, when the diameter of the fan is increased, there is a problem that the size of the air purifier is increased.

SUMMARY OF THE INVENTION An object of the present invention is to provide an air cleaner capable of increasing the amount of air drawn per unit time while suppressing an increase in size.

The air purifier of the first aspect of the present invention comprises a substantially rectangular parallelepiped housing having a cavity formed therein and having a suction port and an air outlet, two blowers provided in the housing, and a filter. and, the two blowers include: a fan that generates an airflow by rotating; an intake section that is positioned upstream of the airflow relative to the fan and receives air; an exhaust portion positioned downstream for exhausting air, sucking air into the cavity through the suction port by rotation of the fan, and discharging the air sucked into the cavity through the blowout port; and the air is blown out through the outlet, the air flowing from the suction port toward the outlet is passed through the filter, and the intake parts of the two fans are arranged to face each other. and provided at both end portions of the housing in the relative direction that is the direction in which the two air intake sections face each other, and at least one of the air intake section and the exhaust section of each of the two blowers is connected to the housing. The suction port is arranged to face each of two first faces facing each other in the relative direction among the six faces of the body, and the suction port is positioned between the two blowers in the relative direction. It is provided on at least two suction surfaces adjacent to each other among four second surfaces excluding the two first surfaces among six surfaces of the housing, and the housing is provided with openings in an intersecting direction. The detachable suction port, which is the substantially rectangular parallelepiped elongated in the direction and is the suction port provided on one of the at least two suction surfaces, is configured to be attachable and detachable, and the filter is configured to be attached to and detached from the two blowers in the relative direction. At least part of the filter is exposed when the attachment/detachment suction port is detached from the housing, is provided at an end of the filter in the relative direction, and intersects the relative direction and a shape-retaining member that retains the shape of the filter so that the filter has a U-shaped cross section in the direction of the filter.
An air purifier according to a second aspect of the present invention is an air purifier having a cavity inside a housing, comprising two blowers arranged in the cavity and a filter arranged in the cavity. wherein the housing includes an air inlet and an air outlet, wherein the inlet is positioned between the two fans in a relative direction that is the direction in which the two fans face each other; The air outlets are provided at both end positions of the cavity, which are provided on the surface forming the housing and open in a direction that intersects the relative direction, and the cavity is directed from one air outlet to the other air outlet. Two partition walls partitioning into three cavities are provided, each partition wall is provided with a through hole through which the air in the cavity flows, and the housing is sandwiched between the central partition walls of the three cavities of the casing. The filter is detachably accommodated in the central cavity, and each cavity at both ends of the three cavities has the central cavity. The air suction side of each blower is arranged on the partition wall side that partitions the central cavity, and the housing is connected to the suction port. The removable suction port included is detachable, and at least part of the filter is exposed when the removable suction port is detached from the housing.

Since the air purifier is provided with two fans, it is possible to increase the amount of air sucked from the suction port per unit time. Also, the two blowers are arranged such that their air intake portions face each other. Therefore, the air purifier can be made smaller in size compared to the case where the intake sections of the two blowers are arranged so as not to face each other. Therefore, the air purifier can increase the amount of air sucked per unit time while suppressing an increase in the size of the housing.

It is a perspective view of 1 A of air cleaners. It is a front view of 1 A of air cleaners. It is a top view of 1 A of air cleaners. Fig. 10 is a perspective view of the air cleaner 1A (with the filter 6) with the lid 31 detached; Fig. 2 is a perspective view of the air cleaner 1A (without filter 6) with lid 31 detached; 2 is a plan view of air cleaner 1A (without filter 6) with lid 31 detached. FIG. FIG. 4 is a cross-sectional view taken along the line AA in FIG. 3 as viewed in the direction of the arrow; FIG. 4 is a cross-sectional view taken along line BB of FIG. 3 as viewed in the direction of the arrow; It is an exploded perspective view of 1 A of air cleaners. It is a figure which shows the air cleaner 1B in a 1st modification. It is a figure which shows 1 C of air cleaners in a 2nd modification. It is a figure showing air cleaner 1D in the 3rd modification. It is a figure which shows the air cleaner 1E in a 4th modification.

<Overview of air purifier 1A>
1 A of air cleaners which are one Embodiment of this invention are demonstrated. Upper, lower, right, left, lower left, and upper right in FIG. 1 are respectively upper, lower, front, rear, left, and right of the air cleaner 1A. The air purifier 1A draws in ambient air to clean it, and blows out the cleaned air to the outside. The air purifier 1A includes a housing 2 (see FIGS. 1 to 6), fans 5L and 5R (generally referred to as “fans 5”; see FIGS. 7 and 9), a filter 6 (FIGS. 4 and 7 to 6). 9) and a control board 9 (see FIG. 9).

<Case 2>
As shown in FIGS. 1 to 6, the shape of the housing 2 is substantially a hexahedron, more specifically, a substantially rectangular parallelepiped elongated in the left-right direction. The housing 2 has a pedestal 3B, a front wall 3F, a rear wall 3S, a left wall 3L, a right wall 3R, and an upper wall 3U. The pedestal 3B has a substantially box-like shape, and a space for accommodating the control board 9 (see FIG. 9) and the like is formed inside. The front wall 3F, rear wall 3S, left wall 3L, and right wall 3R each have a plate shape and are connected to the upper wall 30 (see FIG. 9) of the pedestal 3B. The front wall 3F, rear wall 3S, left wall 3L, and right wall 3R extend upward from the front end, rear end, left end, and right end of the upper wall 30 of the pedestal 3B, respectively. The upper wall 3U has a plate shape and is connected to upper ends of the front wall 3F, the rear wall 3S, the left wall 3L, and the right wall 3R. An internal space surrounded by the front wall 3F, the rear wall 3S, the left wall 3L, the right wall 3R, the upper wall 3U, and the upper wall 30 of the pedestal 3B is called a cavity 10. As shown in FIG. A front surface 2F of the front wall 3F, a rear surface 2S of the rear wall 3S, a left surface 2L of the left wall 3L, a right surface 2R of the right wall 3R, an upper surface 2U of the upper wall 3U, and a bottom surface 2B of the pedestal 3B are each formed of the housing 2. It corresponds to each of the front side, rear side, left side, right side, upper side, and lower side among the six surfaces.

As shown in FIGS. 1-3, the upper wall 3U includes an upper left wall 31L, an upper right wall 31R, and a lid 31. As shown in FIGS. The upper left wall 31L is provided near the left end of the upper ends of the front wall 3F and the rear wall 3S and between the upper ends of the left wall 3L. The upper right wall 31R is provided near the right end of the upper ends of the front wall 3F and the rear wall 3S and between the upper ends of the right wall 3R. As shown in FIGS. 4 to 6, the right end of the upper left wall 31L, the left end of the upper right wall 31R, and the upper ends of the front wall 3F and the rear wall 3S form a rectangular opening 21. . As shown in FIGS. 1-3, lid 31 is attachable to opening 21 . The lid 31 has a plate shape and closes the opening 21 . A portion of the upper surface 2U of the housing 2 that corresponds to the lid 31 is called an upper surface 31U.

As shown in FIGS. 5 and 6, partition walls 36L and 36R are provided on the upper wall 30 of the base 3B.
The partition wall 36L is provided below the left end of the opening 21 . The partition wall 36R is provided below the right end of the opening 21 . The partition walls 36L and 36R are perpendicular to the left-right direction. A plurality of slit-shaped through holes are formed in the partition walls 36L and 36R. As shown in FIG. 7, the partition walls 36L, 36R partition the cavity 10 into three parts (cavities 10U, 10L, 10R). The hollow portion 10L is a portion of the hollow portion 10 to the left of the partition wall 36L. The hollow portion 10R is a portion of the hollow portion 10 to the left of the partition wall 36R. The hollow portion 10U is a portion of the hollow portion 10 that is sandwiched between the partition walls 36L and 36R from the left and right directions, and is positioned below the lid 31 in the attached state. The cavities 10U, 10L, and 10R house filters 6 and blowers 5L and 5R, respectively, which will be described later (see FIG. 4). 5 and 6, the filter 6 (see FIG. 6) is omitted.

As shown in FIGS. 5 and 6, the partition portion 4 is provided on the upper wall 30 of the base 3B. The partition portion 4 is provided inside the hollow portion 10U. The partition portion 4 has a first extension portion 41 and a second extension portion 42 . The first extending portion 41 and the second extending portion 42 each have a plate shape and stand upward from the upper wall 30 . The first extending portion 41 extends in the front-rear direction and is orthogonal to the left-right direction. The first extending portion 41 is arranged in the center of the housing 2 in the left-right direction, and partitions the hollow portion 10U in the left-right direction. The front end of the first extending portion 41 and the front wall 3F of the housing 2 and the rear end of the first extending portion 41 and the rear wall 3S of the housing 2 are separated from each other. The second extension portion 42 is provided at the center of the first extension portion 41 in the front-rear direction. The second extension portion 42 extends in the left-right direction from the first extension portion 41 and is orthogonal to the front-rear direction. The vertical lengths of the first extension portion 41 and the second extension portion 42 are equal. The upper ends of the first extending portion 41 and the second extending portion 42 and the lid 31 are separated from each other.

At least a part of each of the plurality of spaces of the hollow portion 10U partitioned by the partition portion 4 communicates with each other. In the present embodiment, the term “partition” refers not only to the case where a plurality of partitioned spaces are at least partly communicated, such as the partition part 4, but also to the case where a plurality of partitioned spaces are completely separated. Including cases.

As shown in FIG. 6, the length in the front-rear direction of the first extending portion 41 is approximately half the distance in the front-rear direction between the front wall 3F and the rear wall 3S of the housing 2 . Although the length of the first extending portion 41 in the front-rear direction is not limited to that of the present embodiment, it is preferably at least half the distance in the front-rear direction between the front wall 3F and the rear wall 3S. The distance between the front end portion of the first extension portion 41 and the front wall 3F and the distance between the rear end portion of the first extension portion 41 and the rear wall 3S are the front wall 3F and the rear wall 3S, respectively. 3S in the front-rear direction, and shorter than the length in the front-rear direction of the first extending portion 41 . The length of the second extension portion 42 in the left-right direction is approximately 1/3 of the length of the first extension portion 41 in the front-rear direction.

As shown in FIGS. 1 to 3, the upper surface 31U of the lid 31 is formed with a suction port 20U. A suction port 20F is formed in a portion of the front surface 2F of the front wall 3F that overlaps the opening 21 in the left-right direction. A suction port 20S (see FIG. 5) is formed in a portion of the rear surface 2S of the rear wall 3S that overlaps the opening 21 in the left-right direction. That is, the suction ports 20U, 20F, and 20S are provided on the front surface 2F, the upper surface 2U, and the rear surface 2S, which are adjacent to each other among the six surfaces of the housing 2, respectively. Each of the suction ports 20U, 20F, and 20S consists of a plurality of slit-shaped through holes. The suction port 20U opens vertically, and the suction ports 20F and 20S open longitudinally. Therefore, the suction ports 20U, 20F, and 20S all open in a direction perpendicular to the left-right direction.

As shown in FIG. 9, openings 20L and 20R are formed at both left and right ends of the housing 2, respectively. The opening 20L is surrounded by left end portions of the upper wall 3U, the front wall 3F, the rear wall 3S, and the upper wall 30 of the pedestal 3B. The opening 20L communicates with the cavity 10L. The opening 20R is surrounded by right end portions of the upper wall 3U, the front wall 3F, the rear wall 3S, and the upper wall 30 of the pedestal 3B. The opening 20R communicates with the cavity 10R. The openings 20L and 20R face each other in the left-right direction.

The left wall 3L fits into the opening 20L, and the right wall 3R fits into the opening 20R. 22 L of circular outlets are provided in 3 L of left walls. A circular outlet 22R is provided on the right wall 3R. A louver 23 is fitted to each of the outlets 22L and 22R. The louver 23 has a plurality of blades 23A arranged in parallel. The louver 23 changes the direction of the air flowing through the gaps between the plurality of blades 23A to a direction inclined with respect to the left-right direction. The louver 23 can rotate with respect to the left wall 3L or the right wall 3R by sliding with respect to the outlets 22L and 22R. A user can adjust the direction of the air blown out from the inside of the housing 2 to the outside through the outlets 22L and 22R by rotating the louver 23. FIG.

<Filter 6>
The filter 6 is a HEPA filter and cleans the air by removing dirt, dust, and the like.
As shown in FIG. 8, the filter 6 has a structure in which a thick plate-like filter base material having a pleated structure is bent. The cross-sectional shape when the filter 6 is cut along a plane orthogonal to the left-right direction is substantially U-shaped. As shown in FIGS. 8 and 9, the filter 6 has an upper portion 6U, a front portion 6F, and a rear portion 6S extending in the left-right direction. The upper portion 6U is perpendicular to the vertical direction. The front portion 6F extends downward from the front end portion of the upper portion 6U. The rear portion 6S extends downward from the rear end portion of the upper portion 6U. The front portion 6F and the rear portion 6S face each other in the front-rear direction. The downward direction with respect to the filter 6 is called the opening direction of the filter 6 .

Filter 6 is housed in cavity 10U of housing 2 . The front portion 6F of the filter 6 is arranged on the rear side of the portion of the front wall 3F where the suction port 20F is formed. The rear portion 6S of the filter 6 is arranged on the front side of the portion of the rear wall 3S where the suction port 20S is formed. The upper portion 6U of the filter 6 is arranged below the lid 31 attached to the opening 21 . The partition 4 is arranged in a space surrounded by the upper portion 6U, the front portion 6F, and the rear portion 6S of the filter 6. As shown in FIG. As shown in FIG. 4, the filter 6 is exposed from the opening 21 with the lid 31 removed. A user can take out the filter 6 from the cavity 10U through the opening 21 .

As shown in FIG. 9, the filter 6 is provided with thin plate-shaped shape retaining members 61 made of nonwoven fabric at both ends in the left-right direction. The shape-retaining member 61 has a shape-retaining portion 61A and a grip portion 61B.
The shape-retaining portion 61A has the same cross-sectional shape as the filter 6 . The shape-retaining portions 61A are adhered to both ends of the filter 6 in the left-right direction, and retain the shape of the filter 6 so that the cross-sectional shape of the filter 6 is maintained in a U-shape. The gripping portion 61B extends upward from the upper end portion of the shape retaining portion 61A on the side opposite to the opening direction of the filter 6, that is, upward. The grip portion 61B protrudes above the upper end portion of the upper portion 6U of the filter 6. As shown in FIG. When the lid 31 is attached to the opening 21, the gripping portion 61B is bent in the left-right direction to the side opposite to the filter 6 and accommodated in the hollow portion 10U. The grip portion 61B is gripped when the user takes out the filter 6 from the hollow portion 10U.

Sealing members 62 are provided at both ends of the filter 6 in the left-right direction. More specifically, between the shape-retaining portion 61A of the shape-retaining member 61 provided at the left end of the filter 6 and the partition wall 36L, and the shape-retaining member 61 provided at the right end of the filter 6 A seal member 62 is provided between the portion 61A and the partition wall 36R. The sealing member 62 has the same cross-sectional shape as the filter 6 and is made of soft urethane foam. The seal member 62 fills the gap between the filter 6 (shape retaining member 61) and the partition wall 36L and the gap between the filter 6 (shape retaining member 61) and the partition wall 36R in the left-right direction. By providing the sealing member 62, the efficiency of sucking air through the filter 6 by the fans 5L and 5R is improved.

<Blower 5>
As shown in FIG. 7, the fan 5 is an axial-flow fan. The fans 5L and 5R are provided at both ends of the housing 2 in the left-right direction. More specifically, the blower 5L is fixed to the cavity 10L via a sealing member 55L (see FIG. 9). The blower 5L is adjacent to the right side of the left wall 3L. The seal member 55L is made of soft urethane foam and fills the gaps between the upper left wall 31L, the front wall 3F, the rear wall 3S, and the upper wall 30 of the pedestal 3B and the casing 51 of the blower 5L, which will be described later. The blower 5R is fixed to the cavity 10R via a sealing member 55R (see FIG. 9). The blower 5R is adjacent to the left of the right wall 3R. The sealing member 55R is made of soft urethane foam, and fills the gaps between the upper right wall 31R, the front wall 3F, the rear wall 3S, and the upper wall 30 of the pedestal 3B and the casing 51 of the blower 5R, which will be described later. By providing the sealing members 55L and 55R, the efficiency of sucking air through the filter 6 by the fans 5L and 5R is improved. The filter 6 accommodated in the cavity 10U and the suction ports 20U, 20F, and 20S (see FIG. 9) of the housing 2 are arranged between the fans 5L and 5R in the left-right direction.

As shown in FIGS. 7 and 9, the fans 5L and 5R each include a casing 51, a fan 52, and a motor 53. The casing 51 has a rectangular tubular shape. The through hole of casing 51 extends in the left-right direction. The motor 53 is fixed by the casing 51 near the center of the through hole of the casing 51 . A rotating shaft of the motor 53 extends in the left-right direction. The fan 52 is arranged inside the through hole of the casing 51 and rotated by the motor 53 .

The fan 52 generates airflow by rotation. The airflow generated by the fan 52 of the blower 5L passes through the through hole of the casing 51 of the blower 5L from right to left. As shown in FIG. 7, in the casing 51 of the blower 5L, the area surrounded by the right end of the through hole is called an intake section 56L, and the area surrounded by the left end is called an exhaust section 57L. The airflow generated by the fan 52 of the blower 5R passes through the through hole of the casing 51 of the blower 5L from left to right. In the casing 51 of the blower 5R, the area surrounded by the left end of the through hole is called an intake section 56R, and the area surrounded by the right end is called an exhaust section 57R. The intake portions 56L and 56R are positioned upstream of the airflow relative to the fan 52, and intake air. The intake portions 56L and 56R face each other in the left-right direction. The exhaust units 57L and 57R are located downstream of the fan 52 in the air flow, and exhaust the air. 57 L of exhaust parts are arrange|positioned facing 2 L of left surfaces of 3 L of left walls. The exhaust portion 57R is arranged to face the right surface 2R of the right wall 3R.

<Control board 9>
As shown in FIG. 9, the bottom wall 32 of the base 3B is removable. The control board 9 (the main board 9A and the LED board 9B) and the switch 9C are accommodated in the inner space of the pedestal 3B. A control circuit, a USB connector 90A, a cable connector 90B, and the like are mounted on the main board 9A. A USB cable for supplying power to the air cleaner 1A is connected to the USB connector 90A. The USB connector 90A is exposed from the recess 33 provided on the left side surface of the base 3B. A cable 59 extending from the fans 5L and 5R is connected to the cable connector 90B. LEDs are mounted on the LED substrate 9B. The LED is exposed through a through hole 34 provided on the front side surface of the base 3B. Switch 9C is a slide switch. A knob 35A of the switch 9C protrudes forward through a through hole 35 provided in the front side surface of the base 3B.

<Overview of operation>
By connecting the USB cable to the USB connector 90A, the air cleaner 1A is powered. In this state, the user operates the knob 35A to start air purification by the air cleaner 1A. The control circuit of the main substrate 9A drives the blowers 5L and 5R, more specifically, the motors 53 of the blowers 5L and 5R to rotate the respective fans 52 thereof. The fans 5L and 5R generate air currents that flow from the intake sections 56R and 56L toward the exhaust sections 57L and 57R. With this airflow, the air purifier 1A sucks air from the outside into the hollow portion 10U through the upper suction port 20U, the front suction port 20F, and the rear suction port 20S of the housing 2. FIG. The sucked air passes through the filter 6 arranged inside the suction ports 20U, 20F, 20S and is cleaned. Furthermore, the blowers 5L and 5R flow the cleaned air in the hollow portion 10U leftward or rightward from the intake portions 56L and 56R toward the exhaust portions 57L and 57R. As a result, the cleaned air is blown out in the left and right directions through the left outlet 22L and the right outlet 22R of the housing 2 .

<Actions and effects of the present embodiment>
By providing the fans 5L and 5R, the air purifier 1A can increase the amount of air sucked from the suction ports 20U, 20F, and 20S per unit time compared to the case where only one fan is provided. Also, the blowers 5L and 5R are arranged such that the respective intake portions 56R and 56L are opposed to each other. Therefore, in the air cleaner 1A, the size of the housing 2 can be reduced compared to the case where the air intake portions 56R, 56L of the fans 5L, 5R are arranged so as not to face each other. Therefore, the air purifier 1A can increase the amount of air sucked per unit time while suppressing an increase in the size of the housing 2 . 1 A of air cleaners can suppress the enlargement of the housing|casing 2 especially in the radial direction of the fan 52. FIG.

The air cleaner 1</b>A partitions the hollow portion 10</b>U in the left-right direction by the first extending portion 41 of the partition portion 4 . In this case, the air cleaner 1A can suppress the mutual influence of the air flows in the left-right direction formed in the hollow portion 10U by the blowers 5L and 5R facing each other. Therefore, the air cleaner 1A can efficiently suck air from the suction ports 20U, 20F and 20S and blow air from the blow ports 22L and 22R.

The partitioning portion 4 has a second extending portion 42 that partitions the hollow portion 10U in the front-rear direction in addition to the first extending portion 41 that partitions the hollow portion 10U in the left-right direction. In this case, the air cleaner 1A can prevent the air sucked from the opposing suction ports 20F and 20S from affecting each other inside the cavity 10U. Further, in the air cleaner 1A, the second extending portion 42 is provided in the center of the housing 2 in the front-rear direction, so that the air sucked from the suction ports 20F and 20S is evenly distributed in the hollow portion 10U and distributed in the left-right direction. can flow to Therefore, the air cleaner 1A can further smoothen the flow of air in the left-right direction in the cavity 10U. Furthermore, the second extending portion 42 reinforces the first extending portion 41, and can suppress falling down in the left-right direction.

The fans 5L and 5R are provided at both ends of the housing 2 in the left-right direction. In this case, the air purifier 1A can ensure the maximum area in which the filter 6 provided between the fans 5L and 5R can be arranged in the left-right direction. Therefore, the air purifier 1A can use a large filter 6, so that the filter 6 can clean the air efficiently.

The air purifier 1A has suction ports 20U, 20F, and 20S on an upper surface 2U, a front surface 2F, and a rear surface 2S, which have relatively large areas among the six surfaces of a rectangular parallelepiped housing 2 that is elongated in the left-right direction. In this case, the air cleaner 1A can increase the area of the suction ports 20U, 20F, and 20S, so that the amount of air sucked from the suction ports 20U, 20F, and 20S per unit time can be increased. The air cleaner 1A has suction ports 20U, 20F, and 20S on a plurality of surfaces (upper surface 2U, front surface 2F, rear surface 2S) out of four surfaces of the housing 2 excluding the left surface 2L and the right surface 2R. In this case, the air can be efficiently sucked not only in one direction but also in multiple directions with respect to the housing 2 for cleaning.

The fans 5L and 5R are axial-flow fans, and the rotation shafts of the respective motors 53 extend in the left-right direction. In this case, the air purifier 1A directs the air blown from the outlets 22L and 22R by the fans 5L and 5R in a direction perpendicular to the opening direction (upward, forward, and rearward) of the inlets 20U, 20F, and 20S. (left and right direction). Therefore, the air cleaner 1A can reduce the possibility that the air blown out from the outlets 22L, 22R is sucked again from the inlets 20U, 20F, 20S.

The louver 23 can change the direction of the air blown from the outlets 22L and 22R to a direction inclined with respect to the horizontal direction. Therefore, by rotating the louver 23, the user can adjust the direction of the air blown out from the outlets 22L and 22R to a desired direction.

The shape-retaining member 61 retains the shape of the filter 6 so that the cross-sectional shape of the filter 6 is U-shaped. The U-shaped filter 6 has an upper portion 6U, a front portion 6F, and a rear portion 6S arranged close to each of the suction ports 20U, 20F, and 20S. Therefore, the air cleaner 1A can clean the air sucked from each of the suction ports 20U, 20F, and 20S by the common filter 6. FIG. In addition, the user can replace the filters 6 (upper portion 6U, front portion 6F, rear portion 6S) corresponding to the suction ports 20U, 20F, 20S by a single attachment/detachment operation of the filter 6 . Therefore, the maintainability of the air cleaner 1A can be improved. Furthermore, since the user can grip the grip portion 61B of the filter 6 to attach and detach the filter 6, direct contact with the filter 6 can be prevented, which is hygienic.

<First modification>
A first modification will be described with reference to FIG. The air purifier 1B according to the first modification differs from the partition 4 of the air purifier 1A in the shape of the partition 4B. Other configurations of the air cleaner 1B are the same as those of the air cleaner 1A.

As shown in FIG. 10, the left surface 43L of the partition portion 4B of the air cleaner 1B is curved and extends obliquely downward to the left from the upper end portion 43T of the partition portion 4B toward the lower end portion 43B. A right surface 43R of the partition portion 4B of the air cleaner 1B is curved and extends obliquely downward to the right from the upper end portion 43T of the partition portion 4B toward the lower end portion 43B. The angle of inclination from the lower end 43B of each of the left surface 43L and the right surface 43R toward the upper end 43T increases as it approaches the upper end 43T.

In the air purifier 1B, the left surface 43L and the right surface 43R of the partition 4B are inclined and curved with respect to the vertical direction, so that the air sucked from the suction port 20U on the upper surface 2U of the housing 2 is directed to the left surface 2L. It can flow smoothly toward the outlet 22L and the outlet 22R on the right surface 2R.

<Second modification>
A second modification will be described with reference to FIG. 11 . An air purifier 1C according to the second modification differs from the air purifier 1A in that it further includes fans 7L and 7R and in the shape of the partition 4C. Other configurations of the air cleaner 1C are the same as those of the air cleaner 1A.

As shown in FIG. 11, the air cleaner 1C has a partition 4C. The partition portion 4C has a central extension portion 44C, a left extension portion 44L, and a right extension portion 44R. The central extension portion 44C, the left extension portion 44L, and the right extension portion 44R each extend in the front-rear direction. The center extending portion 44C is erected upward from the center of the upper wall 30 in the left-right direction, and partitions the hollow portion 10U in the left-right direction. The left extending portion 44L is erected from the upper wall 30 near the right side of the blower 5L and diagonally upward to the right. The left extending portion 44L laterally partitions a region of the hollow portion 10U on the left side of the central extending portion 44C. The right extending portion 44R stands obliquely upward to the left from the vicinity of the left side of the fan 5R in the upper wall 30, and laterally partitions a region of the hollow portion 10U on the right side of the central extending portion 44C. Upper ends of the center extension portion 44C, the left extension portion 44L, and the right extension portion 44R are not connected and separated in the left-right direction.
Further, the upper end portions of the center extension portion 44C, the left extension portion 44L, and the right extension portion 44R are spaced downward from the upper wall 3U of the housing 2 .

The four regions of the cavity 10U partitioned by the central extension 44C, the left extension 44L, and the right extension 44R are hereinafter referred to as divided cavities 45A, 45B, 45C, and 45D. Portions of the suction ports 20U, 20F, and the suction port 20S that communicate with the divided hollow portions 45A, 45B, 45C, and 45D are respectively referred to as a first partial suction port, a second partial suction port, and a third partial suction port. , is referred to as a fourth partial suction port.

The blower 5L sucks air into the divided cavity 45A through the first partial suction port. The air passes through the filter 6 and is cleaned in the process of being sucked into the divided cavity 45A. Further, the blower 5L blows out the cleaned air in the divided cavity 45A leftward through the left blowing port 22L of the housing 2. As shown in FIG. Also, the blower 5R sucks air into the divided cavity 45D through the fourth partial suction port. The air passes through the filter 6 and is cleaned in the process of being sucked into the divided cavity 45D. Further, the blower 5R blows out the cleaned air in the divided cavity 45D leftward through the right blowing port 22R of the housing 2. As shown in FIG.

The air cleaner 1C further includes fans 7L and 7R. The blower 7L is fixed inside the pedestal 3B and below the divided hollow portion 45B. An opening 26L is provided above the blower 7L in the upper wall 30, and an outlet 27L is provided below the blower 7L in the lower wall 32 of the base 3B.
The blower 7R is fixed inside the pedestal 3B and below the divided hollow portion 45C. An opening 26R is provided above the fan 7R in the upper wall 30, and an air outlet 27R is provided below the fan 7R in the lower wall 32 of the base 3B.

The blower 7L sucks air into the divided cavity 45B through the second partial suction port. The air passes through the filter 6 and is cleaned in the process of being sucked into the divided cavity 45B. Furthermore, the air blower 7L blows out the cleaned air in the divided cavity 45B downward through the opening 26L and the outlet 27L on the lower side of the housing 2 . Also, the blower 7R sucks air into the divided cavity 45C through the third partial suction port. The air passes through the filter 6 and is purified in the process of being sucked into the divided cavity 45C. Furthermore, the air blower 7R blows the cleaned air in the divided cavity 45C downward through the opening 26R and the outlet 27R on the lower side of the housing 2. As shown in FIG.

As described above, since the air cleaner 1C has four fans (fans 5L, 5R, 7L, and 7R), the amount of air sucked from the suction ports 20U, 20F, and 20S per unit time is higher than that of the air cleaners 1A to 1C. It can increase the amount of air intake. Also, the air cleaner 1C can flow airflows formed by driving the fans 5L, 5R, 7L, and 7R through the divided cavities 45A to 45D. In this case, the partition portion 4C can prevent the air flowing through the hollow portion 10U from affecting each other according to the driving of the fans 5L, 5R, 7L, and 7R.
Therefore, the air purifier 1C can increase the efficiency of cleaning the air by allowing the air to flow smoothly within the cavity 10U.

In the second modification, the upper ends of the center extension portion 44C, the left extension portion 44L, and the right extension portion 44R may be connected. Furthermore, in this state, the upper ends of the center extension portion 44C, the left extension portion 44L, and the right extension portion 44R may come into contact with the lid 31 .

<Third modification>
A third modification will be described with reference to FIG. In the air cleaner 1D according to the third modification, the fan 5L has a duct 58L and the fan 5R has a duct 58R. The ducts 58L, 58R have a bent tubular shape and have two openings.

An intake portion 56L of the blower 5L corresponds to one opening of the duct 58L and opens rightward. The air intake portion 56L faces the left surface 2L of the left wall 3L of the housing 2 and is connected to the air outlet 22L. The exhaust portion 57L of the blower 5L corresponds to the other opening of the duct 58L and is arranged to the left of the intake portion 56L. The exhaust portion 57L opens downward. The fan 52 of the blower 5L is arranged near the exhaust part 57L, and blows air from the inside of the duct 58L to the outside. The air is exhausted downward through the exhaust portion 57L of the blower 5L.

An intake portion 56R of the blower 5R corresponds to one opening of the duct 58R and opens leftward. The air intake portion 56R faces the right surface 2R of the right wall 3R of the housing 2 and is connected to the air outlet 22R. The air intake portion 56L of the air blower 5L and the air intake portion 56R of the air blower 5R face each other in the left-right direction. The exhaust portion 57R of the blower 5R corresponds to the other opening of the duct 58R and is arranged to the right of the intake portion 56R. The exhaust portion 57R opens downward. The fan 52 of the blower 5R is arranged in the vicinity of the exhaust part 57R and blows air from the inside of the duct 58R to the outside. The air is exhausted downward through the exhaust portion 57R of the blower 5R.

The fans 5L and 5R generate air currents that flow from the intake sections 56L and 56R toward the exhaust sections 57L and 57R. Due to this airflow, the air cleaner 1A sucks air from the outside into the hollow portion 10U through the suction ports 20U, 20F, and 20S of the housing 2. As shown in FIG. The sucked air passes through the filter 6 and is cleaned. Furthermore, the blowers 5L and 5R flow the cleaned air in the hollow portion 10U from the intake portions 56L and 56R through the ducts 58L and 58R toward the exhaust portions 57L and 57R. As a result, the cleaned air is blown downward through the exhaust portions 57L, 57R of the fans 5L, 5R.

<Fourth modification>
A fourth modification will be described with reference to FIG. In the air purifier 1E according to the fourth modification, a blocking mechanism 81U for blocking the suction port 20U formed on the upper surface 2U of the upper wall 3U, and a suction port 20F formed on the front surface 2F of the front wall 3F are blocked. , and a closing mechanism 81S for closing the suction port 20S formed in the rear surface 2S of the rear wall 3S. The closing mechanisms 81U, 81F, and 81S are hooks capable of attaching the closing plate 80 to the housing 2, respectively. When the blocking plate 80 is attached to the blocking mechanism 81U, the suction port 20U is blocked by the blocking plate 80. As shown in FIG. When the blocking plate 80 is attached to the blocking mechanism 81F, the suction port 20F is blocked by the blocking plate 80. As shown in FIG. When the blocking plate 80 is attached to the blocking mechanism 81S, the suction port 20S is blocked by the blocking plate 80. As shown in FIG.

For example, a user who uses the air purifier 1E blocks part of the suction ports 20U, 20F, and 20S with the blocking plate 80 depending on the application. In this case, the user can prevent air from being sucked into the air purifier 1E from a specific suction port. Also, the user can increase the amount of air sucked per unit time from the unblocked suction port of the air purifier 1E.

<Other Modifications>
Various modifications of the invention are possible. Unless otherwise specified, modifications will be described using the air purifier 1A as an example, but it goes without saying that the air purifiers 1B to 1E can be applied as appropriate.

The air cleaner 1A may be used in a state in which the facing directions of the left wall 3L and the right wall 3R are parallel to the vertical direction. For example, the air cleaner 1A may be used with the pedestal 3B fixed to the microphone stand in a direction in which the longitudinal direction of the housing 2 and the microphone stand are parallel. The shape of the housing 2 is not limited to a rectangular parallelepiped shape. For example, the housing 2 may be a cylinder or prism (such as a triangular prism) that is long in the left-right direction. The number of blowers 5 is not limited to 2 (air cleaners 1A, 1B, 1D, 1E) and 4 (air cleaner 1C), but may be 3 or 5 or more.

A front end portion of the first extension portion 41 of the partition portion 4 may contact the front wall 3</b>F of the housing 2 . A rear end portion of the first extension portion 41 may contact the rear wall 3S of the housing 2 . The upper end portion of the first extension portion 41 may contact the upper wall 3U of the housing 2 . In this case, the hollow portion 10U may be divided in the left-right direction by the first extending portion 41 . The suction ports 20U, 20F, 20S may be provided for each divided area. 1 A of air cleaners do not need to have the partition part 4. FIG.

The left and right end portions of the second extension portion 42 of the partition portion 4 may contact the left wall 3L and the right wall 3R of the housing 2 . The upper end portion of the second extension portion 42 may contact the upper wall 3U of the housing 2 . In this case, the hollow portion 10U may be divided in the front-rear direction by the second extending portion 42 . The suction port 20U may be provided for each divided area. The partition portion 4 may have only the first extension portion 41 and may not have the second extension portion 42 . Each of the first extending portion 41 and the second extending portion 42 may not have a plate shape, and may have, for example, a columnar shape or a prismatic shape.

The intake portion 56L of the fan 5L and the intake portion 56R of the fan 5R do not have to face each other in the horizontal direction. may The blower 5L may be fixed on the left side of the left wall 3L of the housing 2 .
In this case, the air intake portion 56L of the blower 5L and the left surface 2L of the housing 2 may face each other in the left-right direction. Similarly, the blower 5R may be fixed on the right side of the right wall 3R of the housing 2 . In this case, the intake portion 56R of the blower 5R and the right surface 2R of the housing 2 may face each other in the left-right direction. The filter 6 may be provided on the downstream side of the airflow with respect to the exhaust portions 57L, 57R of the fans 5L, 5R. In this case, the filter 6 does not have to be provided in the portion between the fans 5L and 5R in the left-right direction.

The suction port may be provided on the bottom surface 2B of the base 3B in addition to the top surface 2U, the front surface 2F, and the rear surface 2S. The suction port may be provided on any one or two of the upper surface 2U, the front surface 2F, the rear surface 2S, and the bottom surface 2B of the housing 2. For example, the air cleaner 1A may have only the suction port 20F on the front surface 2F and the suction port 20S on the rear surface 2S, and may not have the suction port 20U on the top surface 2U and the suction port on the bottom surface 2B.

The rotating shaft of the motor 53 of the blower 5 may extend in a direction inclined with respect to the left-right direction. The blower 5 may be provided rotatably with respect to the housing 2 . The user may adjust the direction of the blown air by rotating the blower 5 itself. The blower 5 is not limited to an axial flow blower, and may be either a diagonal flow blower or a centrifugal flow blower. The lid 31 may be detachably provided on the front wall 3F or the rear wall 3S of the housing 2 . The cross-sectional shape of the filter 6 is not limited to a U-shape, and may be another cross-sectional shape. For example, the filter 6 has an upper portion 6U, a front portion 6F, and a rear portion 6S, each of which has a linear cross section, and a connection portion between the upper portion 6U and the front portion 6F and a connection portion between the upper portion 6U and the rear portion 6S. The cross-sectional shape may be angular (U-shaped). The filter 6 may have an upper portion 6U, a front portion 6F, and a rear portion 6S formed separately.

<Others>
The horizontal direction is an example of the "relative direction" of the present invention. The front-rear direction is an example of the "intersecting direction" of the present invention. The suction port 20U provided in the lid 31 is an example of the "detachable suction port" of the present invention.

1A, 1B, 1C, 1D, 1E: air cleaner, 2: housing, 2F: front surface, 2L: left surface, 2R: right surface, 2S: rear surface, 2U: upper surface, 4, 4B, 4C: partition, 5, 5L, 5R, 7L, 7R: Blower, 6: Filter, 10, 10L, 10R, 10U: Cavity, 20F, 20S, 20U: Suction port, 22L, 22R, 27L, 27R: Air outlet, 23: Louver, 41 : first extension portion, 42: second extension portion, 51: casing, 52: fan, 53: motor, 56L, 56R: intake portion, 57L, 57R: exhaust portion, 61: shape retention member, 61A: shape retention shape part 61B: gripping part 62: sealing member 81F, 81S, 81U: closing mechanism

Claims (12)

a substantially rectangular parallelepiped housing having a cavity formed therein and having an inlet and an outlet;
Two blowers and a filter provided in the housing;
with
The two blowers are
A fan that rotates to generate an airflow, an intake portion that is located upstream of the airflow from the fan and takes in air, and is located downstream of the fan and exhausts the air. an exhaust section;
By rotating the fan, air is sucked into the cavity through the suction port, the air sucked into the cavity flows toward the blowout port, and the air is blown out through the blowout port,
passing the air flowing from the suction port toward the blowout port through the filter;
The air intake units of the two blowers are arranged to face each other, and are provided at both ends of the housing in the relative direction, which is the direction in which the two air intake units face each other,
At least one of the intake part and the exhaust part of each of the two blowers is arranged to face each of two first faces facing in the relative direction among the six faces of the housing,
The suction port is
located between the two blowers in the relative direction;
opening in a direction that intersects with the relative direction;
Provided on at least two suction surfaces adjacent to each other among four second surfaces excluding the two first surfaces among the six surfaces of the housing,
The housing is
The substantially rectangular parallelepiped that is long in the relative direction,
The removable suction port, which is the suction port provided on one of the at least two suction surfaces, is detachable,
the filter is provided between the two blowers in the relative direction;
At least some of the filters are
exposed when the attachment/detachment suction port is detached from the housing,
A shape-retaining member provided at an end of the filter in the relative direction and configured to retain the shape of the filter so that the cross section of the filter in the direction intersecting the relative direction is U-shaped. Cleaner. The suction port is
2. The air cleaner according to claim 1, further comprising a closing mechanism for closing at least one of the at least two second surfaces provided with the suction port. The two blowers are each:
a casing;
a motor fixed to the casing;
and the fan rotated by the motor,
3. The air purifier according to claim 1, wherein said motor is an axial-flow type blower in which a rotating shaft of said motor extends in said relative direction. 4. The air purifier according to any one of claims 1 to 3, further comprising a louver for adjusting directions of air blown by each of said two blowers. The air cleaner according to any one of claims 1 to 4, wherein the shape-retaining member has a grip portion projecting in a direction opposite to an opening direction of the U-shaped filter. In an air purifier having a cavity inside the housing,
two blowers arranged in the cavity;
a filter disposed in the cavity,
The housing is
Equipped with an air inlet and an air outlet,
The suction port is
located between the two blowers in the relative direction, which is the direction in which the two blowers face each other;
opening in a direction that intersects with the relative direction;
Provided on the surface forming the housing,
The air outlets are provided at both ends of the cavity,
providing two partition walls that partition the cavity into three cavity portions from one outlet toward the other outlet;
Each partition wall has a through hole through which the air in the cavity flows,
The suction port is provided in a wall surrounding a cavity sandwiched between the partition walls at the center of the three cavities of the housing,
Detachably housing the filter in the central cavity,
The two air blowers for discharging the air in the central cavity to the outside of the housing from the air outlet are provided in each cavity at both ends of the three cavities,
Arranging the air suction side of each blower on the partition wall side that partitions the central cavity,
The housing is configured such that a detachable suction port included in the suction port is detachable,
At least part of the filter is exposed when the attachment/detachment suction port is detached from the housing
An air purifier characterized by: The housing has a rectangular parallelepiped shape, and the outlets are provided on a pair of side surfaces along the short direction of the rectangular parallelepiped housing,
7. The air purifier according to claim 6, wherein the suction port is provided on each of a plurality of surfaces along the longitudinal direction of the rectangular parallelepiped housing. 8. The air purifier according to claim 6, wherein a louver having blades for changing the direction of the air blown by the blower is rotatably provided at the outlet. 9. The air purifier according to claim 6, further comprising a sealing member that fills a gap between the filter housed in the central cavity and the partition wall. The housing has a rectangular parallelepiped shape, and includes a pedestal, a front wall and a rear wall extending upward from the pedestal and extending in the longitudinal direction, a left wall and a right wall extending upward from the pedestal and extending in the lateral direction. and an upper wall connected to each other above the front, rear, left, and right walls,
The suction port is provided on each of the front wall, the rear wall and the upper wall,
The outlets are provided on the left wall and the right wall,
The filter has a front portion facing the front wall, a rear portion facing the rear wall, and an upper portion facing the upper wall, and the upper end of the front portion and the upper end of the rear portion are connected via the upper portion. The air purifier according to any one of claims 6 to 9, characterized in that: 11. The air purifier according to claim 10, wherein the upper portion of the filter is provided with a grip. A seal member is provided to fill a gap between the blower and the upper wall, a gap between the blower and the front wall, a gap between the blower and the rear wall, and a gap between the blower and the pedestal. The air cleaner according to claim 10 or 11.

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