JPH06254332A - Air purifier - Google Patents

Abstract

PURPOSE:To provide a compact device in which noise of drive sources can be reduced, assembling of these drive sources is simple and inexpensive, in an air purifier used chiefly in a general household and an office, etc. CONSTITUTION:The air purifier is provided with an interior casing 3 with a space in an exterior casing 1, and also a pump 17, a fan and a water discharge pump 21 which are noise sources, are provided in the interior casing 3. Besides the pump 17, fan and water discharge pump 21 are provided between a water tank 17 and a base plate.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air purifying apparatus for purifying air, sterilizing and deodorizing air by removing indoor dust, dust, cigarette smoke and the like.

[0002]

2. Description of the Related Art Conventionally, a so-called filter type air purifying device has been known in which dirty air is sucked and purified so as to pass through a filter. However, if the filter type air purifier is not cleaned frequently, the cleaning effect will be immediately lost. In addition, a device configured to perform deodorization at the same time as cleaning the air must use a deodorant, and the filter-type air cleaning device may generate positive ions, which is considered to be unhealthy. There was also.

An example of an air purifying apparatus which does not cause such a problem is disclosed in Japanese Patent Publication No. 60-34026. This air purifier cleans dirty air using water, so it can remove dust, dust, cigarette smoke, etc. and have a sterilizing effect over time, and is powerful without using a deodorant. Deodorizing power can also be obtained. Moreover, in recent years, it has been found that this air purifying apparatus has an advantage of generating a large amount of negative ions which are considered to be good for health. It is known in the natural world that this negative ion is called a so-called Leonard phenomenon, and is generated in a basin of a waterfall or a beach. Negative ions can also be generated by corona discharge. However, the corona discharge has a harmful effect that ozone harmful to the human body is generated.

[0004]

Although it has been found that the above-described conventional air purifying apparatus using water has various advantages, this apparatus can be used for a relatively large entire room such as a sterile room such as a factory. It is for purification and is incorporated in air conditioning equipment such as factories. Therefore, the equipment becomes too large and very expensive. For this reason, even though attention is paid to the generation of negative ions that are considered to be good for health without causing harmful effects such as generation, ozone is not used at all in ordinary households or offices at present. It was

Therefore, the applicant of the present application has proposed, though not publicly known, an air purifying device which can be used in a general home, an office, etc. even though it is a purification system using water. This air cleaning device is connected to the cyclone pipe through a water tank, a cyclone pipe that is erected above the water tank and has an opening at the bottom, and a ventilation portion that is provided above the water surface of the water tank. A water-and-water separation pipe having an opening, an injection means for injecting water in the water tank in the cyclone pipe to form innumerable fine water droplets, and cleaning air to spirally descend from above the cyclone pipe. With a means for sending in, the air that has passed the fine water droplets from the cyclone tube is sent to the air-water separation tube through the ventilation part, and is discharged after being spirally raised in this air-water separation tube, Garbage, dust,
It is advantageous in that it can remove tobacco smoke, sterilization, and deodorization, and that it produces a large amount of negative ions that are considered to be healthy.

However, this air purifier is equipped with a pump for pumping water and a fan for sending air, and the operating noise of these drive sources is quite large. In addition, the sound of water bouncing and the sound of wind breaking were also generated. Therefore, when such a device is used in a room such as a general home or an office, noise may be heard in a quiet room. In addition, it is effective to use the air cleaning device continuously for several hours or more to obtain the above advantages, and it is necessary to reduce the noise in order to enable the air cleaning device to be used indoors such as a general household. It was an important issue.

In view of the above-mentioned conventional circumstances, the present invention is an air cleaning apparatus mainly used in general homes, offices, etc., which can reduce the noise of the drive source, and moreover, these drive sources can be assembled. It is an object of the present invention to provide a device which is simple, inexpensive, and compact.

[0008]

In order to achieve the above object, the present invention provides a water tank, a cyclone pipe standing upright above the water tank and having an open bottom, and provided above the water surface of the water tank. Is communicated with the cyclone pipe via a ventilation part,
A steam-water separation pipe having an open bottom, an injection means for injecting water in the water tank in the cyclone pipe to form innumerable fine water droplets, and a cleaning air spirally descending from above the cyclone pipe. And an air purifying device that discharges air that has passed fine water droplets from the cyclone pipe to the air / water separation pipe through a ventilation part, raises the air spirally in the air / water separation pipe, and then discharges the air / water separation pipe. In the above, the water tank, the cyclone pipe, the steam separation pipe, the drive source of the injection means, and the drive source of the feeding means are substantially covered by an inner casing provided in an outer casing.

Further, in order to achieve the above-mentioned object, according to the present invention, a base member on which a drive source for the jetting means and the sending means is placed, and the base member is formed in accordance with the shape of the drive source. A receiving portion; an upper member provided above the base member; and a holding portion formed on the upper member according to the shape of the drive source and holding the drive source mounted on the base member. By fixing the base member and the upper member, the drive source is positioned at a predetermined position by the receiving portion and the holding portion.

Further, in order to achieve the above object, the present invention is characterized in that the water tank is the upper member, and a drive source for the injection means and the feeding means is arranged below the water tank. .

[0011]

According to the above construction, the water tank, the cyclone pipe, the water-water separation pipe, the drive source of the injection means and the drive source of the feeding means are substantially covered by the inner casing provided in the outer casing. The noise source is covered approximately double in the inner casing and the outer casing, and the noise during operation can be reduced.

[0012]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a perspective view showing an embodiment of an air cleaning device according to the present invention. In FIG. 1, reference numeral 1 is an exterior casing of the air purifying apparatus, and a narrow vertically long portion on the left side of the front side of the exterior casing 1 is configured as an opening / closing cover 2. An inner casing 3 made of plastic or the like is provided in the outer casing 1, and the tank 6 is set at a position corresponding to the opening / closing cover 2 of the inner casing 3, that is, a position that appears when the opening / closing cover 2 is opened. Possible recesses 4 are formed. A water supply port 5 for a water tank 7, which will be described later, is formed below the recess 4. A detector (not shown) for detecting that the tank 6 is set at a predetermined position is provided at an appropriate position of the recess 4,
The air cleaning device can be operated only when the detector is turned on by the tank 6. Also, reference numeral 6a
Is the upper opening of the tank 6.

2 and 4, a water tank 7 having a rectangular cross section is provided in the inner casing 3, and a cyclone tube 8 and a water / water separation tube 9 are arranged in parallel on the water tank 7. And is erected. Therefore, on the water tank 7, the recess 4, the cyclone pipe 8 and the steam separating pipe 9 are sequentially arranged from the left side of FIG. The water tank 7 is provided with a lid portion 10 at a portion where the cyclone pipe 8 and the steam separation pipe 9 are arranged, and the lid portion 10 is fixed to the inner casing 3. Guide holes are formed in the lid portion 10,
A cyclone pipe 8 and a steam separation pipe 9 are fitted in the guide hole. The flanges of the cyclone pipe 8 and the water / water separation pipe 9 are fixed to the lid 10 with screws or the like, so that the cyclone pipe 8 and the water / water separation pipe 9 are supported by the inner casing 3.

An air supply port 11 is provided above the cyclone pipe 8, and an exhaust port 12 is provided above the steam separation pipe 9. Further, the bottoms of the cyclone pipe 8 and the steam separation pipe 9 are both open, and the lower ends thereof reach near the bottom of the water tank 7. Further, as shown in FIG. 3, the cyclone pipe 8 and the steam separation pipe 9 are communicated with each other through a conduit 13 as a ventilation portion provided at a position slightly above the lid portion 10 of the water tank 7. Inside the cyclone pipe 8, a pipe 14 connected to a pump 17 for pumping up the water in the water tank 7 is erected in the axial direction so as to pass through substantially the center thereof.
Is provided with a nozzle 15 and a scattering plate 16 arranged so as to face the jet direction of the nozzle 15. In this case, since the nozzle 15 jets water downward, the scattering plate 16 which forms a pair with the nozzle 15 is arranged below the nozzle 15. In this embodiment, two pairs of the nozzle 15 and the scattering plate 16 are provided. There is.
In addition, the water tank 7 is provided with a water amount sensor (not shown), and in this embodiment, three sensors for detecting two-thirds and one-third of the water amount from the water level when the water tank 7 is full are provided. I have it. Then, one-third when the water tank 7 is full is set as the minimum amount of water, and a sensor that detects this one-third also serves as a detection unit that detects the presence or absence of water supply. The minimum amount of water, which is one-third of that at the time of full water, is the amount of water which, when the amount of water is less than this, causes air to enter the pumped water of the pump 17 and its operation becomes insufficient. One-third
It is possible to operate only when the sensor for detecting is ON.

The air supply port 11 is connected in the tangential direction of the cyclone pipe 8, and is connected to the air supply port 11 through a duct 18 and a fan 18 for feeding air. The air supply port 11, the duct 19 and the fan 18 constitute a means for sending the air of this embodiment from above the cyclone pipe 8 so as to descend in a spiral shape. Further, since the conduit 13 is also connected from the tangential direction of the cyclone pipe 8 to the tangential direction of the steam / water separation pipe 9, the air sent from the cyclone pipe 8 to the steam / water separation pipe 9 via the conduit 13 has a spiral shape. And is exhausted from the exhaust port 12.

A drainage port 20 connected to a drainage pump 21 is formed at the lowermost position of the bottom of the water tank 7, and a tip of a drainage pipe (not shown) connected to the drainage pump 21 has the above-mentioned recessed portion. It is located above the upper opening 6a of the tank 6 which is set to 4.

The operation of the thus constructed air cleaning apparatus will be described. First, the flow of air will be described. As shown in FIG. 1, a ventilation part 22 for taking in outside air is formed in the lower part of the opening / closing cover 2, and the air entering the ventilation part 22 is formed in the left side part of the inner casing 3. 4 from the side groove 23
Is sucked into the suction port 24 of the fan 18. The air blown from the fan 18 is transmitted through the duct 19 to the cyclone pipe 8
Sent to the top of. This duct 19 is made of rigid plastic or the like.
By incorporating 5, the vibration of the fan 18 is mitigated,
It is possible to prevent the outer casing 1 from vibrating.

Since the air blown by the fan 18 is sent in the tangential direction of the cyclone tube 8, it descends in a spiral shape, and the air / water separation pipe is connected from the conduit 13 connected so that the air flow smoothly flows without being obstructed. Sent to 9. The air sent into the water / water separation pipe 9 is also sent in from the tangential direction, so that it rises spirally and is discharged from the exhaust port 12. This exhaust flow is exhausted from an exhaust unit 26 provided on the front surface of the outer casing 1 through a duct (not shown).

Next, the flow of water will be described. The water tank 7
The water at the minimum predetermined water level or higher is stored therein, and when the pump 17 is operated here, the water in the water tank 7 is pumped up to the pipe 14. The pipe 14 has two pairs of nozzles 15 and a scattering plate 16.
The water sprayed from each nozzle hits the splash plate 16 and scatters in all directions to break, and further bounces and hits the wall surface in the cyclone pipe 8 to break. Therefore, the inside of the cyclone pipe 8 is filled with very fine and innumerable crushed water. Indoor dust, dust, etc. sent into the cyclone pipe 8 through the air supply port 12 to these fine water droplets,
Particles such as cigarette smoke adhere and heavy ones fall into the water tank 7. Even if water droplets are attached, those that are relatively light are sent to the air / water separation pipe 9 via the conduit 13, and when they are spirally raised, the particles to which water is attached due to centrifugal force are separated. It adheres to the inner wall of 9 and falls into the water tank 7. At this time, 0. Only ultra-fine water droplets of several microns or less are exhausted, and dust, bacteria, etc. in the air beyond that are dropped into the water tank 7 and removed. The ultra-fine particles to be discharged can be adjusted by the air flow of the fan 18, and if the ultra-fine water droplets to be discharged are adjusted to 0.3 micron or less, the air can be purified, sterilized, and deodorized favorably.

By the way, the air purifying apparatus of this embodiment is placed in a room such as a general home or an office so that it can be used. At the time of such use, the entire air purifying apparatus should be compact and noise should be reduced. It is required to be as small as possible and to be provided at a low price. At this time, in order to make the entire air purifying device compact, it is advantageous to make the depth small, that is, to make it thin when it is used by being placed in a room. In addition, it is advantageous to suppress the noise to about 40 dB or less so that the noise is not heard in a quiet room to some extent.

Therefore, in the air cleaning apparatus of this embodiment, the inner casing 3 is provided with a gap in the outer casing 1, and the pump 17, the fan 18 and the drainage pump 21 which are noise sources are installed in the inner casing 3. There is. Therefore, the pump 17, the fan 18, and the drainage pump 2
1 is covered with a double casing including an outer casing 1 and an inner casing 3. Furthermore, the pump 17, the fan 18, and the drainage pump 21 are installed between the water tank 7 and the base plate 27, as shown in FIG. In this case, the base plate 27 is formed as a double plate as shown in FIG. 6, and a receiving portion 28 for determining the installation positions of the pump 17, the fan 18 and the drainage pump 21 is formed on the upper portion thereof. The receiving portion 28 is formed in advance according to the shape of each drive component so that the drive component can be accommodated without rattling when the drive components are installed at predetermined positions. On the other hand, in the lower part of the water tank 7, a holding part 29 for pressing the pump 17, the fan 18 and the drainage pump 21 placed at a predetermined position of the base plate 27 from above is formed in the same shape as each receiving part 28 of the base plate 27. It is formed in advance according to. The water tank 7 and the base plate 27 are fixed with an appropriate number of screws 30.

In the thus constructed air purifying apparatus, the noise source pump 17, the fan 18, and the drainage pump 21 are covered with a double casing, and a space is provided between the outer casing 1 and the inner casing 3. Therefore, these noises can be largely insulated. At this time, the jetting sound of the nozzle 15 in the water tank 7, the bounce sound of the scattering plate 16 and the like can be shut off, and the wind noise caused by the air blown by the fan 18 can also be shut off. Furthermore, pump 17, fan 1
8 and the drainage pump 21 are covered by the water tank 7 on the upper side and the base plate 27 formed on the lower side by the double plate, so that sound leakage from the upper side and the lower side can be prevented. A soundproof material may be fitted between the outer casing 1 and the inner casing 3 or between the base plates of the double plate.

Further, in assembling the machine, the pump 17, the fan 18 and the drainage pump 21 are placed on the respective receiving portions 28 of the base plate 27 and covered with the water tank 7.
At this time, the holding portion 29 at the bottom of the water tank 7 holds the pump 17, the fan 18, and the drainage pump 21, and if the water tank 7 and the base plate 27 are fixed by the screws 30, the assembly of the driving portion is completed.

Thus, in assembling the machine, the pump 17, the fan 18 and the drainage pump 21 can be assembled without screwing, so that the number of assembling steps can be reduced and the operation is simple and the manufacturing cost can be greatly increased. Can be lowered. If a vibration absorbing material such as urethane is attached to each surface of the receiving portion 28 and the pressing portion 29, the vibration of these drive sources can be absorbed.

[0025]

According to the structure of the first aspect, the water tank, the cyclone pipe, the water-water separation pipe, the drive source of the injection means and the drive source of the feeding means are substantially covered by the inner casing provided in the outer casing. Since it is possible to reduce the noise from these noise sources during operation, it is possible to almost eliminate the discomfort caused by the noise.

According to the second aspect of the present invention, by fixing the base member and the upper member, the drive source is positioned at a predetermined position by the receiving portion and the holding portion. Since the work is simple, the manufacturing cost can be reduced.

According to the third aspect of the invention, since the drive source for the jetting means and the sending means is arranged below the water tank, the noise of the drive source can be reduced and the depth of the entire apparatus can be shortened. .

[Brief description of drawings]

FIG. 1 is an external perspective view showing an embodiment of an air cleaning device according to the present invention.

FIG. 2 is an internal cross-sectional view thereof.

FIG. 3 is an internal plan view thereof.

FIG. 4 is a perspective view seen from the rear with the outer casing removed.

FIG. 5 is an exploded perspective view of the drive unit.

FIG. 6 is a cross-sectional view of a base plate.

[Explanation of symbols]

 6 Tank 7 Water Tank 8 Cyclone Pipe 9 Air-Water Separation Pipe 11 Air Supply Port 12 Exhaust Port 13 Conduit 17 Pump 18 Fan 21 Drain Pump 27 Base Plate 28 Receiving Portion 29 Pressing Portion

Claims (3)

[Claims] 1. A water tank, a cyclone pipe standing upright above the water tank and having a bottom opening, and a cyclone pipe communicating with the cyclone pipe through a ventilation portion provided above the water surface of the water tank, and the bottom is An air-water separation pipe that is opened, an injection unit that injects water in the water tank in the cyclone pipe to form innumerable fine water droplets, and clean air is sent from above the cyclone pipe in a spiral manner. In the air purifying device, which has means, sends the air that has passed the fine water droplets from the cyclone pipe to the air-water separation pipe through a ventilation part, and then discharges the air-water separation pipe after spirally rising. An empty space characterized in that the water tank, the cyclone pipe, the steam separation pipe, the drive source of the injection means and the drive source of the feeding means are substantially covered by an inner casing provided in an outer casing. Cleaning apparatus. 2. A water tank, a cyclone pipe standing upright above the water tank and having an open bottom, and a cyclone pipe connected to the cyclone pipe through a ventilation portion provided above the water surface of the water tank, and the bottom is An air-water separation pipe that is opened, an injection unit that injects water in the water tank in the cyclone pipe to form innumerable fine water droplets, and clean air is sent from above the cyclone pipe in a spiral manner. In the air purifying device, which has means, sends the air that has passed the fine water droplets from the cyclone pipe to the air-water separation pipe through a ventilation part, and then discharges the air-water separation pipe after spirally rising. A base member on which a drive source for the jetting means and the sending means is placed; a receiving portion formed on the base member according to the shape of the drive source; and an upper member provided above the base member, The A pressing member that is formed on the base member according to the shape of the drive source and presses the drive source placed on the base member. By fixing the base member and the upper member, the drive source Is positioned at a predetermined position by the receiving portion and the pressing portion. 3. The air cleaning apparatus according to claim 2, wherein the water tank is the upper member, and a drive source for the injection means and the sending means is arranged below the water tank. Cleaning device.