JPH0817356A - Blower - Google Patents

Abstract

PURPOSE:To provide a noiseless blower that uses only corona wind by removing ozone generated by a corona discharge. CONSTITUTION:An acicular cathode 2 supported on a support 3 is installed inside a main body case 1, and an anode 4 and a filter 5 to be located behind the anode 4 are arranged parallel to or at an appropriate angle to the cathode 2. The anode 4 has a number of small air holes and is covered with an insulating material on its cathode side. The exit side of the filter leads to an exhaust hole 10. Application of high voltages to both electrodes causes a corona discharge, and charged particles and ozone ions or the like are drawn toward the anode, lose their charges, and are attracted to the filter for removal. Air having no charge forms ionic wind, which is fed out of the exhaust hole 10 through a bypass 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blower comprising an air supply port, a needle-shaped cathode corona discharge part, an anode having a surface, and a filter and an exhaust port arranged behind the anode. Bypasses are installed diagonally or in parallel without facing each other, and non-ionized air as so-called ionic wind generated when charged particles collide with gas molecules can flow directly to the outlet without passing through the anode and the filter. The present invention relates to a blower, a blower provided with a damper for adjusting the amount of air flowing through the bypass, and a blower provided with a heating element for heating the air flowing through the bypass. INDUSTRIAL APPLICABILITY The present invention is not limited to a mere blower, and has a function of removing suspended particles such as dust in the air, and thus can be used as an air purifier that does not emit noise. Also, since it has a function to generate hot air, it can be used as a hair dryer that does not emit noise.

[0002]

2. Description of the Related Art A conventional blower mechanically moves air by rotating a fan with power of a motor or the like. Although ionic wind is a well-known phenomenon, it produces ozone as well as a small amount of air and pressure. When the amount of air that can be practically used is released, a large amount of ozone is emitted, and when a filter is used to remove this, the air pressure is small and the amount of air drops. Therefore, a blower using ion wind has not been put to practical use. Even if there is a device that uses ion wind, it is an ion generator and it is difficult to call it a blower.

[0003]

However, the method of blowing air by rotating a fan with the power of a motor or the like involves mechanical rotation, which causes noise and is noisy. Especially in bedrooms and hospital rooms, it is a major cause of disturbing rest. If ion air can be used here, a noiseless blower will be put into practical use, so the problem is how to remove ozone without reducing the air flow.

In the present invention, the non-ionized air is sent out as an ionic wind without passing through the filter, and charged particles such as dust and ionized ozone lose their electric charge at the anode and are adsorbed on the filter. The purpose of the present invention is to provide a blower that does not emit noise or ozone by arranging a filter.

[0005]

The invention according to claim 1 is
In a blower consisting of an air inlet, a needle-shaped cathode, a corona discharge part, an anode with a surface, a filter placed behind the anode, and an outlet, the cathode and anode are not vertically opposed to each other and are ionized by being placed diagonally. The problem is solved by providing a bypass that allows the unretained air to flow directly to the outlet without passing through the anode and filter.

The invention according to claim 2 solves the problem by providing a damper for controlling the amount of air flowing in the bypass.

The third aspect of the present invention solves the problem by installing a heating element in the bypass and sending hot air.

According to a fourth aspect of the present invention, an anode having a large number of small holes and having a plate-like structure in which the cathode side and the inside of the holes are covered with an insulating material is arranged, and gas molecules such as ionized ozone are arranged. Solves the problem by losing the charge on the filter side of the anode and flowing into the filter for adsorption removal.

[0009]

According to the first aspect of the invention, charged particles such as dust to which the ionized electrons are attached and (-) ions such as ozone are attracted to the anode where they lose their charge and are adsorbed by the filter behind. On the other hand, the non-ionized air is sent as ozone wind through the bypass from the outlet without noise.

According to the second aspect of the invention, charged particles such as dust to which the ionized electrons are attached and (-) ions such as ozone are attracted to the anode where they lose their charge and are adsorbed by the filter behind. On the other hand, the non-ionized air passes through the bypass as ozone wind, the amount of air is adjusted by the damper, and is sent out from the outlet without noise.

According to the third aspect of the present invention, if non-ionized ozone is present by the heating element installed in the bypass, it is decomposed into oxygen and hot air is sent from the outlet without noise.

According to the fourth aspect of the invention, ionized gas molecules such as ozone lose the charge on the filter side of the anode due to the insulating coating on the anode, and therefore the bypass of the bypass through the small holes of the anode. However, it cannot be back-flowed in one direction and is poured into the filter and adsorbed and removed. Only the ionic wind leaking from the small holes and gas molecules such as ozone that have lost the charge pass through the filter, so the air volume in the filter is small.

[0013]

Embodiments Embodiments will be described below with reference to the accompanying drawings.
FIG. 1 shows a blower according to a first embodiment of the present invention, in which 1 is a main body of the blower made of an appropriate material such as insulating fire resistant plastic, 2 is a needle cathode, 3 is a cathode 2. A supporting base, 4 is an anode having a large number of small holes 14 for passing air, 5 is a filter made of a porous material such as activated carbon, 6 is a high-voltage power supply, 7 is a cathode conductor connected to a cathode, 8 is an anode lead wire connected to the anode, 9 is an air supply port, 10
Is a discharge port, 11 is a bypass, 12 is an openable and closable damper provided in the bypass, 13 is a hinge for supporting the opening and closing of the damper 12, 14 is a small hole of the anode, and 15 is an insulating coating applied to the anode.

A needle-shaped cathode 2 supported by a support 3 is installed in a main body case 1, and an anode 4 and a filter 5 are arranged behind the needle-shaped cathode 2 in parallel or at an appropriate angle. The cathode 2 passes through the cathode lead wire 7, and the anode 4 passes through the anode lead wire 8.
Is connected to the high-voltage power supply 6 through. When high voltage is applied to both electrodes, corona is generated at the tip of the needle of the cathode 2 and the air molecules are ionized. In the vicinity of the tip of the needle, the inclination of electrolysis is the largest in the direction of the needle. Therefore, ionized electrons, charged particles such as dust with electrons attached, and (-) ions such as ozone move in the direction of the needle. It reaches the anode 4 while gradually changing its direction toward the anode 4 while colliding with gas molecules to generate an ionic wind. Since the cathode 2 side of the anode 4 has the insulating coating 15, charged particles and (−) ions lose their charge on the filter 5 side of the anode through the small holes 14. Since the ion wind flows from the cathode 2 side to the filter 5 side through the small holes 14, the gas molecules such as ozone having lost the charge cannot flow back to the cathode 2 side and are adsorbed and removed by the filter 5. The gas such as ozone that has passed through the filter 5 is sent out from the outlet 10. Since the ionic wind generated at the tip of the needle of the cathode 2 has no electric charge, it is sent out from the outlet 10 through the bypass 11, and at the same time, fresh air is taken in from the air inlet 9.

In the present invention, (-) ion molecules such as charged particles and ozone are selected from the ionic wind by utilizing Coulomb force, as compared with the method of directly removing the ozone by inserting a filter into the air flow. Since it does not give a resistance to the flow of air, it can be put to practical use as a blower even with a slight wind such as ion wind.

Since the present invention has the ability to remove suspended matters such as dust in the air as described above, it can be used as an air purifier that does not emit noise.

Although only one needle of the cathode 2 is shown in the drawing, it is possible to use a large number of needles, and it is obvious that the air volume and the air pressure of the ion wind are increased by doing so. . Further, although the space between the anode and the filter is drawn small, the space can be enlarged by moving the filter 5 toward the discharge port 10. Although the outlet for discharging the air is collected in one place as the outlet 10, the outlet of the bypass 11 and the outlet from the filter 5 can be separately provided.

FIG. 2 shows the inside of the bypass 11 of the blower of the second embodiment of the present invention. This blower is the same as the first embodiment except the internal structure of the bypass 11, but the inside of the bypass 11 is the same. The difference is that the damper 12 is provided in the. That is, since the ionic wind generated at the tip of the needle of the cathode 2 has no electric charge, it is sent out through the bypass 11 through the exhaust port 10 and at the same time, takes in new air through the air supply port 9. A damper 12 is a hinge 13 on the bypass 11.
The damper 12 is attached to the main body case 1 so that it can be opened and closed centering around, and the damper 12 adjusts the amount of flowing air.

FIG. 3 shows the inside of the bypass 11 of the blower of the first and second embodiments of the present invention. This blower is similar to the first embodiment except for the internal structure of the bypass 11. The difference is that a heating element 16 is provided in the bypass 11. That is, the air flowing through the bypass is heated by the heating element 16 such as a nichrome wire, and if ozone is present, it is decomposed into oxygen and hot air is sent out from the discharge port 10.
If the temperature of the hot air is set appropriately, it can be used as a hairdryer, especially a hair dryer, that does not emit noise.

FIG. 4 shows the structure of the anode 4 of the blower of the first, second and third embodiments.
4 is arranged so that the side 4 faces the cathode 2.

[0021]

According to the first aspect of the present invention, it is possible to provide a noise-free blower that efficiently removes suspended matters such as dust and ozone. According to the invention of claim 2, the air volume of the blower can be adjusted. According to the invention of claim 3, ozone can be decomposed into oxygen and hot air can be sent out. According to the invention of claim 4,
It is possible to efficiently remove suspended matter such as dust and ozone.

[Brief description of drawings]

FIG. 1 is a sectional view of a blower showing a first embodiment of the present invention.

FIG. 2 is a sectional view of a bypass portion of a blower showing a second embodiment of the present invention.

FIG. 3 is a sectional view of a bypass portion of a blower showing a third embodiment of the present invention.

FIG. 4 is a sectional view of an anode of a blower showing a fourth embodiment of the present invention.

[Explanation of symbols]

 1 Body Case 2 Cathode 3 Support 4 Anode 5 Filter 6 High Voltage Power Supply 7 Cathode Conductor 8 Anode Conductor 9 Air Supply Port 10 Discharge Port 11 Bypass 12 Damper 13 Hinge 14 Small Hole 15 Cover 16 Heating Element

Claims (4)

[Claims] 1. A blower comprising an air supply port, an acicular cathode corona discharge part, an anode having a surface and a filter and an exhaust port arranged behind the anode, and the cathode and the anode are not vertically opposed to each other but obliquely or parallel to each other. A blower, which is located in the air conditioner and has a bypass that allows unionized air to flow directly to the outlet without passing through the anode and the filter. 2. The blower according to claim 1, wherein the bypass has a structure in which an openable and closable damper for adjusting the amount of air flowing to the bypass is installed. 3. The bypass has a structure in which a heating element for heating air flowing through the bypass is installed.
Or the blower described in 2. 4. The blower according to claim 1, wherein the anode has a large number of small holes, and has a plate-like or net-like structure in which the cathode side and the inside of the holes are covered with an insulating material.