JP2003038925A - Air cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the reduction of air volume and the occurrence of noise even if the back surface of a cleaner body case is formed in circular arc shape and also an irregular surface is formed. SOLUTION: In an air cleaner in which the air sucked into the cleaner body case 2 from an air suction port 9 is cleaned and blown out from a discharge port 4 to the outside of the cleaner body case 2, the back surface being one side surface of the cleaner body case 2 is formed in a circular arc shape projecting outside and the back surface is formed in the irregular surface 12, and a fan 28 is surrounded with a fan casing 29 provided in the cleaner body case 2 and communicates with the discharge port 4 and the back surface, and a rib 14 located in the vicinity of the outer diameter of the fan 28 and erected at the inner side of the cleaner body case 2 than the irregular surface 12 is formed at the back surface. Therefore, the air is prevented from flowing between the fan 28 and the one side surface of the cleaner body case 2 from the outside of the fan along the one side surface of the cleaner body due to the rib.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air purifier that purifies air sucked into a main body case from an intake port and exhausts the air to the outside of the main body case from an exhaust port.

[0002]

2. Description of the Related Art A conventional air cleaner is disclosed in Japanese Patent Laid-Open No. 2000-1.
No. 02714 (B01D46 / 52), the inside of the main body case is divided into front and rear by a partition plate, a fan is provided on the back side of the partition plate, and the fan is provided with a spiral fan casing in the main body case. Cover with the back of the case, suck the room air from the intake port formed on the front side of the main body case by driving the fan, and purify the sucked room air with the filter inside the main case It is known that the air is blown out again into the room from the exhaust port formed on the upper surface.

In order to make such an air purifier look thin when viewed from both the left and right sides, the back surface of the air purifier is formed into an arc shape with a plane cross section protruding outward, and the left and right sides of the back surface are brought close to the front surface. You can do it like this. Also, like the intake ports formed on the left and right sides, the back surface has no holes, but it has an uneven surface so that the appearance from the front side is almost the same as the appearance from the back side. The appearance can be improved.

However, the back surface is arcuate, and
In the case of an uneven surface, if air enters between the fan and the back surface of the main body case due to the driving of the fan, the uneven surface causes air turbulence, which makes the static pressure unstable and reduces the air volume or noise. Such a problem occurs.

[0005]

SUMMARY OF THE INVENTION According to the present invention, even if the rear surface of the main body case has an arcuate horizontal cross section and is formed on an uneven surface, the air volume can be prevented from decreasing or noise being generated. An object is to provide a purifier.

[0006]

Means for Solving the Problems The means for solving the above problems is an air cleaner for purifying air sucked into the main body case from an intake port and blowing the air out of the main body case from an exhaust port. One side surface is formed in an arc shape projecting outward, a plurality of irregularities are formed on the one side surface, and a fan casing provided in the main body case and communicating with an exhaust port surrounds the fan. A rib that is located near the outer diameter of the fan and that is erected on the inner side of the main body case with respect to the unevenness is formed on the one side surface.

Thus, the ribs can prevent the air from flowing from the outside of the fan along the one side surface of the main body case between the fan and the one side surface of the main body case.
Even if one side surface is formed as an uneven surface, it is possible to prevent the static pressure from becoming unstable, reducing the air volume and generating noise.

In the above structure, the rib is an arc-shaped rib formed at least near the tongue portion of the fan casing.

Thus, the arcuate ribs prevent air from flowing from the outside of the fan along the one side surface of the main body case between the fan and the one side surface of the main body case near the tongue portion having a high flow velocity. Therefore, it is possible to effectively prevent the reduction of the air volume and the generation of noise.

The ribs may be cylindrical ribs.

As a result, it is possible to prevent air from flowing from the outside of the fan along the one side surface of the main body case between the fan and the one side surface of the main body case by the cylindrical rib, thereby reducing the air volume. It is possible to prevent noise and noise.

[0012] Further, in detail, the rib is located on the outer peripheral side of the outer diameter of the fan.

Further, the intake port is composed of a large number of intake holes formed on the other side surface of the body case, and the concave portion of the uneven surface formed on the outer surface side of the one side surface corresponds to the intake hole. .

As a result, the appearance from one side surface can be made substantially the same as the appearance from the other side surface, and the appearance can be improved.

An intake hole is formed on the one side surface outside the fan casing.

Thus, the intake hole can be easily formed on the one side surface, and the intake air can be taken from the one side surface.

[0017]

1 to 8 show an embodiment of the present invention, which will be described below with reference to these drawings.

Reference numeral 1 denotes an air cleaner, and a main body case 2 forming an outer shell is formed in a rectangular shape whose horizontal section is long in the left-right direction as shown in FIG. 2, and the front and back surfaces are spaced from each other toward both ends. It is formed in an arc shape so as to be narrow. As shown in FIG. 1, the body case 2 includes a display unit 3 and a lattice-shaped exhaust port 4, and an upper cover 5 that covers the upper side, a front cover 6 that covers the front side, and a back cover 7 that covers the back side.
And left and right side covers 8 that cover the side surfaces. Hereafter, the rear surface of the main body case 2 will be referred to as one side surface, and the front surface will be referred to as the other side surface.

The front cover 6 is formed with a vertical door-shaped intake hole 9a over almost the entire surface, and a lower portion of FIG.
The locking claw 10 is formed as shown in FIG.

As shown in FIG. 2, the back cover 7 has an uneven surface 12 as a whole, and a recess 11 formed in the vertical direction on the outside thereof corresponds to the intake hole 9a of the front cover 6. Further, as shown in FIG. 5, a plurality of air intake doors 9b in the vertical direction are formed outside the fan casing 29 described later. Further, on the back surface of the back cover 7, a spiral rib 13 that abuts against the end of the fan casing 29.
An arc-shaped rib 14 is formed inside the spiral rib 13 and near the tongue portion 13a. As shown in FIG. 2, the arc-shaped rib 14 is located outside the outer diameter of the fan 28 described later, and is formed higher than the protrusion amount h of the concave-convex surface 12 toward the rear surface side.

Further, as shown in FIG. 5, the upper portion of the rear cover 7 is located outside the spiral ribs 13 and the handle recess 1 is formed.
5 is formed, and the air cleaner 1 can be transported by putting a hand on the handhold recess 15. A hole 16 that communicates the inside and outside of the main body case 2 is formed in the handle recess 15, and the air outside the main body case 2 is taken into the main body case 2 through the hole 16.

As shown in FIGS. 2 and 4, the side cover 8 is formed in an arcuate shape and vertically symmetrical, and as shown in FIG. The intake hole 9c, the intake hole 9a of the front cover 6, and the intake hole 9b of the rear cover 7 constitute the intake port 9. As shown in FIGS. 2 and 8, the rear surface of the side cover 8 is orthogonal to the side surface of the main body case 2 and has ribs 3 of a partition plate 21 to be described later.
Reinforcing ribs 17 that come into contact with 5 are formed at a plurality of upper and lower positions. Further, as shown in FIG. 7, a locking claw 18 is formed on the back side of the side cover 8, and a mounting hole 20 into which a screw 19 is inserted is formed on the front side.

Reference numeral 21 is a partition plate which divides the inside of the main body case 2 into front and back. As shown in FIG. 3, legs 22 for supporting the main body case 2 are formed in the lower portion, and the front cover 6 is provided on the front side of the legs 22.
A locking hole 23 for locking the locking claw 10 is formed.

An upright portion 24 is provided upright from the leg 22, and the upright portion 24 divides the inside of the main body case 2 into front and rear. A large number of holes 25 are formed substantially in the center of the standing portion 24, and the spaces in front of and behind the partition plate 21 communicate with each other through the holes 25.

On the front side of the standing portion 24, the filter storage portion 2 is provided.
6 is integrally formed, and the filter 27 is detachably accommodated in the filter accommodating portion 26. This filter 2
7 collects dust in the air and removes odorous components.

On the other hand, the exhaust port 4 is provided on the rear side of the standing portion 24.
And a fan casing 29 surrounding the side of the fan 28 is formed. The fan casing 29 and the back surface of the back cover 7 and the spiral rib 13 surround the fan 28.

Reference numeral 30 denotes a motor for driving the fan 28, which is covered with a resin case 30a.
A drive shaft 31 to which the fan 28 is attached projects from one end side of the. A case 30 is provided on one end side of the motor 30.
A disc 32 larger than the outer shape of a is attached, and is attached to the standing portion 24 via the disc 32, and the other end of the motor 30 is covered with a cover 33.

The disk 32 and the cover 33 are formed of an iron plate, and prevent the magnetism generated in the motor 30 from leaking to the front side or the back side. Also, disk 3
The outer shapes of the cover 2 and the cover 33 before molding are the same, and they can be formed by punching from a single plate or the like with the same mold. As a result, the molds that form the outer shapes of the disc 32 and the cover 33 are made common, and the cost of the molds can be reduced.

As shown in FIGS. 2, 7 and 8, a plurality of communication holes 34 are formed outside the fan casing 29 on the left and right sides of the partition plate 21, and the communication holes 34 are formed.
Thus, the intake hole 9b of the rear cover 7 is communicated with the intake hole 9a of the front cover 6 and the intake hole 9c of the side cover 8. In the communication hole 34, the locking claw 18 formed on the side cover 8 is formed.
Is locked. The side cover 8 is attached to the partition plate 21 with screws 19 while the reinforcing ribs 17 are in contact with the ribs 35 formed on the partition plate 21. As a result, the communication hole 3
4 can be used to attach the side cover 8 to the partition plate 21.

In the air purifier having the above-described structure, the intake port 9 is formed of the armored door-shaped intake hole 9 as described above, so that the inside of the main body case 2 can be made difficult to see through the intake port 9.
Further, by making the recess 11 in the rear cover 7 correspond to the intake hole 9 of the front cover 6, the appearance from one side surface of the main body case 2 can be made substantially the same as the appearance from the other side surface, and the appearance can be improved.

The outer casing of the main body case 2 is composed of the upper cover 5, the front cover 6, the back cover 7 and the side cover 8, so that the front, back and side surfaces of the main body case 2 have intake doors 9a in the shape of a door. , 9b, 9c can be easily formed.

Further, the intake hole 9 formed in the back cover 7
By forming b on the outer side of the fan casing 29, the intake hole 9b can be easily formed in the back cover 7.

Further, since the side covers 8 are vertically symmetrical, the side covers 8 on both sides can be used as common parts, the molds can be shared, and the cost of the molds can be reduced.

By the way, when the fan 28 is driven, the air in the room is sucked into the main body case 2 through the intake holes 9a of the front cover 6, and is guided by the reinforcing ribs 17 through the intake holes 9c of the side cover 8 to the inside of the main case 2. Sucked into
Further, it is sucked into the main body case 2 through the intake hole 9b of the back cover 7. The air sucked from the intake hole 9b of the rear cover 7 is passed through the communication hole 34 and the partition plate 21 of the main body case 2 is inserted.
The ribs 35 formed on the partition plate 21 together with the air that has flowed into the front side further and that has been sucked in through the intake holes 9c of the side cover 8.
It is guided by and flows to the front side. Then, dust and odor components in the air are removed through the filter 27 together with the air sucked from the air intake hole 9a of the front cover 6, flow into the fan casing 29, are guided by the fan casing 29, and are discharged through the exhaust port 4 Returned to the room.

Since the arc-shaped ribs 14 are formed on the inside of the fan casing 29 on the back cover 7 as described above, air enters along the back surface of the back cover 7 on which the uneven surface 12 is formed. Can be prevented.
As a result, it is possible to prevent the flow of air from being disturbed on the uneven surface 12 and the static pressure from becoming unstable, thereby reducing the air volume and generating noise.

Since the rib 14 is located in the vicinity of the tongue portion of the fan casing 29 corresponding to the tongue portion 13a of the spiral rib 13, the fan casing 2 having the highest flow velocity.
It is possible to prevent air from flowing along the back surface of the back cover 7 in which the uneven surface 12 is formed in the vicinity of the tongue portion 9 and effectively reduce the air volume and the noise. .

Further, as described above, since the side cover 8 is formed with the reinforcing rib 17 which is orthogonal to the side surface of the main body case 2 and abuts against the rib 35 of the partition plate 21, the side cover 8 can be reinforced and the reinforcing rib 17 can be reinforced. The air sucked from the air intake hole 9c of the side cover 8 can be guided by using 17.

When the air cleaner 1 is installed, it may be installed with the front, side and back of the main body case 2 facing an obstacle such as a wall or furniture depending on the place of installation. As described above, the intake port 9 is formed in the front cover 6, the side cover 8, and the rear cover 7 of the main body case 2, so that the obstacle is installed in a state of being close to the front side of the main body case 2, for example. Even if the air intake holes 9a on the front side become close to the closed state and it becomes difficult for air to flow in, it is possible to take air into the main body case 2 from the air intake holes 9c on the side surface of the main body case 2 and the air intake holes 9b on the rear side. it can. Therefore, even if the intake port 9 is installed close to the obstacle, the entire intake port 9 is not blocked and the intake port 9 can be installed in various places, which improves usability.

Further, by attaching the iron disk 32 and the cover 33 to the front and rear of the case 30a of the motor 30, even if the case 30a is made of resin, the magnetic force generated by the motor 30 can be blocked by the disk 32 and the cover 33. Even if the front surface or the side surface of the main body case 2 is placed close to a monitor of a personal computer, etc., it can be installed without affecting the monitor.

In the above embodiment, the rear cover 7 is located inside the spiral rib 13 and has an arc-shaped rib 14.
However, a cylindrical rib may be formed.

Although the arc-shaped rib 14 is located outside the outer diameter of the fan 28, it may be located near the outer diameter of the fan 28.

[0042]

According to the present invention, a rib is formed on one side surface of the main body case, the rib being located in the vicinity of the outer diameter of the fan and standing on the inner side of the main body case with respect to the uneven surface formed on the one side surface. Thus, it is possible to prevent air from flowing from the outside of the fan along one side surface of the main body case between the fan and the one side surface of the main body case by the rib, and form one side surface into an uneven surface. However, it is possible to prevent the air volume from decreasing and the noise from being generated.

Further, the rib is an arc-shaped rib formed at least near the tongue portion of the fan casing so that the outside of the fan is provided between the fan and one side surface of the main body case near the tongue portion where the flow velocity is high. It is possible to prevent the air from flowing from one side along one side surface of the main body case by the arc-shaped rib, and it is possible to effectively prevent the air volume from decreasing and the noise from being generated.

When the ribs are cylindrical ribs, it is possible to prevent air from flowing from the outside of the fan along one side surface of the main body case between the fan and the one side surface of the main body case. It can be prevented by the ribs, and it is possible to prevent the air volume from decreasing and the noise from being generated.

Further, the intake port is composed of a large number of intake holes formed on the other side surface of the main body case, and the concave and convex portions formed on the outer surface of the one side surface are made to correspond to the intake holes. The appearance from can be made almost the same as the appearance from the other side, and the appearance can be improved.

By forming the intake hole on the one side surface outside the fan casing, the intake hole can be easily formed on the one side surface, and the intake air can also be taken from the one side surface. it can.

[Brief description of drawings]

FIG. 1 is a perspective view of an air purifier showing an embodiment of the present invention.

FIG. 2 is a plan sectional view of the air cleaner.

FIG. 3 is a side sectional view of the air purifier.

FIG. 4 is a side view of the air purifier.

FIG. 5 is a view of the back cover of the air purifier as viewed from the back surface side.

FIG. 6 is a view of a rear cover of the air purifier viewed from the rear side.

FIG. 7 is a detailed view of the vicinity of a side cover of the air purifier.

8 is a sectional view taken along line XX in FIG.

[Explanation of symbols]

2 body case 4 exhaust port 6 Front cover (other side) 7 Rear cover (one side) 8 Side cover 9 Air intake 9a Front cover intake hole 9b Rear cover intake hole 11 recess 12 uneven surface 14 ribs 28 fans 29 Fan casing

Continued front page    (72) Inventor Hiroshi Noguchi             2-5-3 Keihan Hondori, Moriguchi City, Osaka Prefecture             Within Yo Denki Co., Ltd. F-term (reference) 4D058 JA14 KA11 KA23 KC17 KC30                       LA01 LA05 QA01 QA17 QA21                       SA01 UA18

Claims (6)

[Claims] 1. An air purifier for purifying air sucked into the main body case from an intake port and blowing the air out of the main body case from an exhaust port, wherein one side surface of the main body case is formed in an arc shape protruding outward. The one side surface is formed into an uneven surface, and the fan casing is provided in the main body case and communicates with an exhaust port, and the one side surface surrounds the fan, and the one side surface is located near the outer diameter of the fan. The air purifier is characterized in that a rib is provided upright on the inner side of the main body case with respect to the uneven surface. 2. The air purifier according to claim 1, wherein the rib is an arc-shaped rib formed at least near the tongue portion of the fan casing. 3. The air purifier according to claim 1, wherein the rib is a cylindrical rib. 4. The air cleaner according to claim 1, wherein the rib is located outside an outer diameter of the fan. 5. The intake port is composed of a large number of intake holes formed on the other side surface of the body case, and the concave portion of the uneven surface formed on the outer surface side of the one side surface corresponds to the intake hole. The air cleaner according to any one of claims 1 to 4, characterized in that 6. The air purifier according to claim 1, wherein an intake hole is formed on the one side surface outside the fan casing.