JPH09229408A - Air cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air cleaner producing little noise with higher efficiency. SOLUTION: An air conditioning mechanism 25, a fan 26, a sound deadening chamber 27 and a filter 28 are laid out in a box member 22 of an air cleaning device 20. A rotary shaft 35a of a fan 35 of a blower 26 is provided so that it may extend in the depth direction of the box member 22 while an outlet 43 from the fan 35 is provided on one side 22b of the box member 22, thereby forming the sound deadening chamber 27 so that it may lead to the upper part by way of a communication opening 45 where the sound deadening chamber 27 is provided on the other side 22c.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to, for example, an indoor installation type air cleaning device.

[0002]

2. Description of the Related Art Conventionally, there are the following types of package-type air purifiers installed in a room requiring a high degree of clean air, such as an operating room of a hospital. FIG.
As shown in FIG. 5 and FIG. 5, the air purifying apparatus 1 has the outer shell formed by the box body 2. The width dimension (horizontal direction in FIG. 4) in the horizontal direction of the box body 2 is set to be larger than the depth dimension (direction orthogonal to the drawing in FIG. 4, right and left direction in FIG. 5), and the front surface 2a thereof is The suction port 3 is formed in the lower part, and the air outlet 4 is formed in the upper part.

In such a box body 2, an air conditioning mechanism 5, a blower 6, a muffling chamber 7, and a filter section 8 are sequentially arranged from the suction port 3 side toward the blowout port 4 side, and the suction port 3
The air sucked into the box body 2 through these is sequentially blown through these and blown out from the blow-out port 4.

The air conditioning mechanism 5 includes a pre-filter 9 arranged behind the suction port 3 and a cooler 10 for cooling air.
And an electric heater 1 for heating air to a predetermined temperature
1. A humidifier 12 for adjusting the air to a predetermined humidity. In this air conditioning mechanism 5, the suction port 3
The air sucked in from the room is roughly cooled by a prefilter 9 after foreign substances are roughly removed, and then cooled once by a cooler 10. After that, by the electric heater 11 and the humidifier 12,
After being adjusted to a predetermined temperature and humidity, the air is guided to the blower 6.

The blower 6 includes a blower fan 13 and a motor 14
The air is sent from the side of the air conditioning mechanism 5 to the filter section 8 through the muffling chamber 7 by being rotationally driven by.

As shown in FIG. 6, the muffling chamber 7 is
By forming the barrier 15 inside, the air path is bent, and the sound deadening material 16 is attached to the entire inside surface. This silence chamber 7
Is formed so as to extend upward on the rear surface side in the box body 2, and an opening is formed on the front surface side facing the filter portion 8.

The filter section 8 is made of a filter material such as a so-called HEPA filter, and the air sent out from the opening (not shown) of the muffling chamber 7 passes through this to remove fine foreign matters, It is designed to be cleaned to a predetermined degree of cleanliness.

[0008]

However, the conventional air cleaner 1 as described above has the following problems. Such an indoor installation type air cleaning device 1
Is required to be compact, and the depth is limited to, for example, about 35 cm in order to be uniform with other storage shelves and the like installed in the room. For this reason, the diameter of the blower fan 13 of the blower 6 whose rotation axis extends in the width direction of the air cleaning device 1 is limited by the depth dimension of the air cleaning device 1.

On the other hand, the indoor-installation type air cleaning device 1 is
Noise reduction is also required. In order to reduce the noise while ensuring a predetermined air volume, the rotation speed of the blower fan 13 is suppressed by increasing the diameter of the blower fan 13, thereby suppressing the wind noise and the operation noise of the blower fan 13. Is desirable. However, as described above, when the diameter of the blower fan 13 is limited, it is difficult to efficiently reduce the noise because the rotation speed cannot be suppressed above a certain level.

The present invention has been made in view of the above points, and it is an object of the present invention to provide an air purifying apparatus capable of efficiently reducing noise.

[0011]

The invention according to claim 1 is
A suction port and a blowout port are formed on the front surface of the box whose depth dimension is set larger than the width dimension, and the air sucked into the box body from the suction port is adjusted to a predetermined temperature and humidity in the box body. An air conditioning mechanism, a blower that blows the air toward the air outlet, a muffling chamber that reduces the noise of the blower, and a filter that removes foreign matter from the air that has been blown from the blower and that has passed through the muffling chamber. A fan provided in the blower is provided with its rotation axis extending in the depth direction of the box body, and an outlet from the blower to the silencing chamber has a width of the box body. It is characterized in that it is formed at one end in the direction.

According to a second aspect of the present invention, in the air purifying apparatus according to the first aspect, a drive motor for rotationally driving the fan is provided with its drive shaft positioned parallel to the rotary shaft of the fan, and The drive shaft and the rotary shaft are each provided with a pulley on the front side of the box body, and a drive belt is wound between the drive shaft pulley and the rotary shaft pulley.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION An example of an embodiment of an air cleaning device according to the present invention will be described below with reference to FIGS. Here, the air purifying apparatus according to the present invention will be described by using an example in the case of being applied to an air purifying apparatus for an operating room of a hospital, for example.

As shown in FIGS. 1 and 2, the air purifying apparatus 20 has a box 22 as an outer shell. The box body 22 has a width dimension (horizontal direction in FIG. 1) in the horizontal direction set to be larger than a depth dimension (direction orthogonal to the drawing in FIG. 1, left-right direction in FIG. 2), and the front surface 22a thereof is The suction port 23 is formed in the lower part, and the air outlet 24 is formed in the upper part.

An air conditioning mechanism 25 is provided in the box body 22.
The blower 26, the muffling chamber 27, and the filter portion (filter) 28 are sequentially arranged from the suction port 23 side toward the blowout port 24 side, and the suction port 23 and the box body 22 are disposed.
The air sucked inside passes through these in order and the outlet 24
It is supposed to be blown out from.

The air conditioning mechanism 25 has a pre-filter 29 arranged behind the suction port 23, a cooler 30 for cooling the air, an electric heater 31 for heating the air to a predetermined temperature, and an air heater. Humidifier 3 for adjusting to a predetermined humidity
And 2. In this air conditioning mechanism 25,
The air in the room sucked through the suction port 23 is roughly cooled by the prefilter 29 and then temporarily cooled by the cooler 30. After that, the electric heater 31 and the humidifier 32 adjust the temperature and humidity to predetermined values.

The blower 26 includes a blower fan (fan) 35.
And a drive motor 36 for driving this. The blower fan 35 is arranged on the right side of the box body 22 when viewed from the front, and its rotation shaft 35 a is provided so as to extend in the depth direction of the box body 22. On the other hand, the drive motor 36
Is arranged in the center of the box body 22, and its drive shaft 3
6a is arrange | positioned in parallel with the rotating shaft 35a of the ventilation fan 35. The rotary shaft 35a of the blower fan 35 and the drive shaft 36a of the drive motor 36 have pulleys 37, 38, respectively.
Is attached, and a drive belt 39 is wound between these pulleys 37 and 38. This drive belt 3
It is preferable that 9 is formed of a material that does not easily generate dust. The pulleys 37 and 38 include a rotary shaft 35a and a drive shaft 36a.
It is arranged at the end of the box body 22 on the front surface 22a side.

The blower fan 35 is housed in the casing 41 and arranged on the rear surface side in the box body 22.
An inlet 42 (see FIG. 2) is formed on the front surface of the casing 41, and an outlet (blow-out port) 43 (see FIG. 1) is formed on the upper surface. As shown in FIG. 1, the outlet 43 is formed at a position in contact with one side surface 22b of the box body 22 on the bottom surface of the silencing chamber 27 located above the outlet 43.

In such a blower fan 35, the drive motor 36 is driven to rotate, so that the air passing through the air conditioning mechanism 25 is sucked in through the inlet 42 and the outlet 43.
Is sent to the muffling chamber 27.

The muffling chamber 27 has a lower portion 27a.
Is formed so as to project downward on the side opposite to the blower 26, and as shown in FIG.
Are formed so as to project to the rear side of the filter portion 28. Inside the muffling chamber 27, there are a lower portion 27a and an upper portion 27.
A partition plate 44 for partitioning the b part is provided on the lower surface side of the filter portion 28. As shown in FIG. 1 and FIG. 3, the partition plate 44 is in communication with the upper side 27b and the lower side 27c at a position in contact with the side surface 22c opposite to the side surface 22b of the box 22 in which the outlet 43 is formed. A port 45 is formed, and a barrier 46 extending downward by a predetermined dimension is formed around the port 45. In this way,
The air flow path in the muffling chamber 27 is formed to be bent. In addition, on the inner surface of the muffling chamber 27,
A muffling material 47 is attached to the entire surface,
In this muffling chamber 27, wind noise and operating noise of the blower fan 35 are silenced.

As shown in FIG. 2, the filter unit 28
Is made of a filter material such as a so-called HEPA filter, and the air sent from the front surface side of the upper portion 27b of the muffling chamber 27 is blown out from the blow-out port 24 therethrough. The foreign matter is removed, and it is cleaned to a degree of cleanliness higher than a predetermined level.

In the air cleaning device 20 described above, the box body 22
An air conditioning mechanism 25, a blower 26, a muffling chamber 27, and a filter unit 28 are provided therein, and a rotation shaft 35a of a blower fan 35 of the blower 26 is provided so as to extend in the depth direction of the box body 22. It has been configured. In such an air purifying apparatus 20, by operating the blower 26, the air in the room is sucked through the suction port 23, and the air conditioning mechanism 25 adjusts this to a predetermined temperature and humidity.
After the foreign matter in the air is removed and cleaned by the filter unit 28, the air in the room is cleaned by blowing out from the air outlet 24. At this time, the operating noise and wind noise of the blower fan 35 of the blower 26 are silenced in the muffling chamber 27.

In this air purifying device 20, the rotating shaft 35a of the blower fan 35 of the blower 26 is provided so as to extend in the depth direction of the box body 22, so that the diameter of the blower fan 35 can be adjusted as shown in FIG. It can be ensured to be larger than that of the conventional air cleaning device 1 shown in FIG. As a result, under the same conditions, that is, the same pressure and air volume, the rotation speed can be suppressed more than that of the conventional air cleaning device 1, so that the wind noise and the operation noise of the blower fan 35 can be suppressed. In this way, the blower fan 35 having the optimum diameter
By adopting, it becomes possible to efficiently reduce the noise of the air cleaning device 20.

In addition, in the air purifying device 20, the outlet 43 from the blower fan 35 has the side surface 22 of the box 22.
The muffling chamber 2 is provided on the b side and reaches the upper portion 27b through the communication port 45 provided on the other side surface 22c side.
Since 7 is formed, the silencing chamber 2 is more conventional than before.
It is possible to secure a long path length in the inside 7, whereby the sound deadening effect in the sound deadening chamber 27 can be enhanced, and the noise can be reduced more efficiently.

A drive motor 36 for rotating the blower fan 35 is provided so that its drive shaft 36a is positioned parallel to the rotary shaft 35a of the blower fan 35, and the drive shaft 36a and the rotary shaft 35a are respectively provided. Pulleys 37 and 38 are provided on the front surface 22a side of the box body 22, and a drive belt 39 is wound between them. In this way, by providing the pulleys 37, 38 and the drive belt 39 on the front surface 22a side of the box body 22, if the front surface 22a of the box body 22 is opened, the blower fan 35 and the drive motor 3 can be opened.
The drive system can be easily maintained without pulling out 6 itself.

In the above embodiment, the air purifying device 20 is not limited to the operating room, but may be any type as long as it is of an indoor installation type. Further, the form of the blower 26, the shape of the muffling chamber, and the like are not limited to the above-mentioned form, and may be other forms. Further, in the above-described embodiment, the blower fan 35 is configured to be rotationally driven via the pulleys 37 and 38 and the drive belt 39, but it may be configured to directly connect the drive motor to directly drive the rotation.

[0027]

As described above, according to the air cleaning apparatus of the first aspect, the air conditioning mechanism, the blower, the muffling chamber, and the filter are arranged in the box body, and the fan of the blower is The rotation shaft is provided so as to extend in the depth direction of the box body, and the air outlet from the blower to the silencing chamber is formed at one end of the box body in the width direction. In such an air cleaning device, the fan diameter can be secured larger than that of the conventional air cleaning device.
Therefore, by selecting the fan having the optimum diameter, it is possible to suppress the wind speed more than before and reduce noise even under the same conditions. Furthermore, by forming the outlet from the blower at one end of the box body of the box body, it is possible to secure a long path length in the silencing chamber, thereby further reducing noise. You can

According to the air purifying apparatus of the second aspect, the drive motor for rotationally driving the fan is provided such that its drive shaft is positioned parallel to the rotary shaft of the fan, and the drive shaft and the rotary shaft are respectively provided with boxes. A pulley is provided on the front side of the body, and the drive belt is wound between the pulley of the drive shaft and the pulley of the rotary shaft. Thus, by providing the pulley for driving the fan on the front side of the box, if the front of the box is opened, maintenance of the drive system can be easily performed without pulling out the fan or the drive motor itself. It will be possible. Further, normally, in order to obtain a smooth flow of air, a space of about the diameter of the impeller is required on the entire surface of the fan suction port, but this space can be used as a space for pulleys.

[Brief description of drawings]

FIG. 1 is a front sectional view showing an example of an air cleaning device according to the present invention.

FIG. 2 is a side sectional view of FIG.

FIG. 3 is a plan sectional view of a muffling chamber provided in the air cleaning device.

FIG. 4 is a front sectional view showing an example of a conventional air cleaning device.

FIG. 5 is a side sectional view of FIG. 4;

6A and 6B are a front sectional view and a plan sectional view of a muffling chamber provided in the air cleaning device.

[Explanation of symbols]

 20 Air Cleaner 22 Box 23 Suction Port 24 Air Outlet 25 Air Conditioning Mechanism 26 Blower 27 Noise Suppression Chamber 28 Filter Part (Filter) 35 Blower Fan (Fan) 35a Rotating Shaft 36 Drive Motor 36a Drive Shaft 37, 38 Pulley 39 Drive Belt 43 Exit (Blowout)

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Hiromitsu Kamaishi 2-6, Kaigan, Minato-ku, Tokyo 2-6, Technet Co., Ltd.

Claims (2)

[Claims] 1. A suction port and a blowout port are formed on the front surface of a box whose depth dimension is set to be larger than its width dimension, and a predetermined amount of air sucked into the box body from the suction port is formed in the box body. An air conditioning mechanism that adjusts the temperature and humidity, a blower that sends the air toward the air outlet, a muffling chamber that reduces the noise of the blower, and a foreign substance from the air that is sent from the blower and that has passed through the muffling chamber. And a filter provided for removal, the fan provided in the blower is provided with its rotation axis extending in the depth direction of the box body, and an outlet from the blower to the silencing chamber is provided. An air cleaning device, which is formed at one end in the width direction of the box body. 2. The air cleaning device according to claim 1, wherein
A drive motor for rotationally driving the fan is provided with its drive shaft positioned parallel to the rotary shaft of the fan, and the drive shaft and the rotary shaft are respectively provided with pulleys on the front side of the box body. An air purifying device, wherein a drive belt is wound between the drive shaft pulley and the rotary shaft pulley.