JPH0619838U - Air cleaner - Google Patents

Abstract

(57) [Summary] [Objective] Establish a highly efficient air cleaner by utilizing electron flow. [Structure] A dust collection filter that is stored in the box and allows the air that is sucked into the box to pass through; a wire mesh or a perforated metal plate that is provided in contact with the upstream side of the dust collection filter; A large number of metal needle groups or perforated metal plates with projections that are provided on the downstream side of the filter with a space between them and this wire mesh or perforated metal plate and many metal needle groups or perforated metal with projections. It consists of a high-voltage power supply that applies a high DC voltage to the plate and a fan that sucks in air, and collects dust by flowing an electron flow from a group of metal needles or perforated plate with protrusions to a wire mesh or perforated metal plate. An air purifier characterized by:

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an air purifier used for general household use, automobile use, industrial use and the like.

[0002]

[Prior art and its problems]

 As a conventional means for purifying the air of general households, automobiles, buildings, etc., a charging filter method and an electric dust collecting method are known. As shown in Fig. 5, the charging filter system has a pair of wire mesh electrodes arranged on both sides of the charging filter. The dust in the air is filtered and the electric field generated by the wire mesh electrodes and the charging of the charging filter are increased. It is collected by the synergistic effect of. As shown in Fig. 6, the electrostatic dust collection method is composed of a plurality of plate-shaped dust collection electrodes arranged parallel to the air flow and linear discharge electrodes arranged between the respective dust collection electrodes. The dust in the air is collected by the action of the electric field formed between the dust collecting electrode and the discharge electrode. However, in the case of the charging filter method, the above air cleaning means reduces the collection efficiency when the air flow becomes faster due to the dust collection force of the electric field action. Although a filter was required, the high collection efficiency was still not obtained. Further, in the case of the electrostatic precipitating method, since the collection is performed by the electric field in the direction perpendicular to the air flow, the problem that the collection efficiency is reduced when the air flow becomes faster is pointed out. . Furthermore, in all cases, the collection efficiency depends on the flow velocity of the air, so they are not suitable for treating a large volume of air. The purpose of the present invention is to solve the problems of the conventional technology, improve collection efficiency, and establish an air purifier that can process a large amount of air with an inexpensive dust collection filter. Placed

[0003]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides a dust collecting filter which is housed in a box body and allows the air sucked into the box body to pass through, and a wire mesh or a hole provided in contact with the upstream side of the dust collecting filter. A metal plate electrode, a large number of metal needle groups or perforated metal plate electrodes with protrusions that are provided on the downstream side of the dust collection filter and separated from the dust collection filter by a wire mesh or perforated metal plate electrode. This is an air purifier characterized by comprising a high voltage power source for applying a high DC voltage to a large number of metal needle groups or perforated metal plate electrodes with protrusions, and a fan for sucking air.

[0004]

[Work]

 The operation of the present invention is as follows. (1) When a high voltage is applied between the wire netting electrode and a large number of metal needle group electrodes, electrons radially flow from the tip of each metal needle toward the wire netting. (2) The dust that has passed through the dust collecting filter by riding on the air flow collides with the electrons and is negatively charged. (3) A spiral flow occurs between the two electrodes due to the air flow and the electrons flowing in the air flow, and the negatively charged dust is attracted to the wire mesh electrode side and collected by the dust collecting filter. (4) Since the negatively charged dust repels many metal needle group electrodes, it cannot pass through many metal needle group electrodes and is caught in the spiral flow between both electrodes, resulting in efficient It becomes possible to collect dust.

[0005]

【Example】

 The present invention will be described below based on illustrated embodiments. FIG. 1 is a structural explanatory view showing an internal configuration of an embodiment of the present invention, in which 1 is a wire mesh electrode, 2 is a dust collecting filter, 3 is a large number of metal needle group electrodes, 4 is a high voltage power source, and 5 is a A fan, 6 is a motor, 7 is a box, 8 is an air inlet, 9 is an air outlet, and 10 is an air flow. The wire mesh electrode 1 is arranged in contact with the upstream side of the dust collecting filter 2, and a large number of metal needle group electrodes 3 are arranged on the downstream side of the dust collecting filter 2 with a gap from the dust collecting filter 2. Has been done. Part of the dust in the air flow is collected on the upstream side of the dust collecting filter 2, but most of it passes through the dust collecting filter 2. However, except for a very small amount of dust, it cannot pass through a large number of metal needle group electrodes and is collected downstream of the dust collection filter. When a high voltage is applied between the wire net electrode 1 and a large number of metal needle group electrodes 3, electrons flow from the tip of each metal needle toward the wire net, and the dust passing through the dust collecting filter 2 is negatively charged. This is because a vortex is generated due to the electron flow, and most of the dust is attracted toward the wire mesh electrode 1 side against the flowing water of air. Since the negatively charged dust is strongly attracted to the wire netting electrode 1, it is possible to use an inexpensive material such as dust paper or cloth for the dust collecting filter 2. FIG. 2 is a partially enlarged view of the embodiment shown in FIG. 1 in which the electrode, which is a main component, has another shape. 1A is a perforated metal plate electrode, 3A is a protruding metal plate electrode, 2 and 4 are the same as in FIG. Also in this case, the same effect as in FIG. 1 was obtained by selecting the shape and number of the projections of the metal plate electrode 2 with projections. FIG. 3 is a structural explanatory view showing the internal structure of another embodiment of the present invention, and 1 to 10 are the same as FIG. The wire netting electrode 1 and the dust collecting filter 2 are also arranged downstream of the large number of metal needle group electrodes 3, and a higher collection efficiency than that of the embodiment of FIG. 1 was obtained. FIG. 4 is a partially enlarged view of the embodiment shown in FIG. 3 in which the electrode, which is a main component, has another shape, and 1A to 4 are the same as FIG.

[0006]

[Effect]

 As described above, according to the present invention, the dust collection efficiency can be improved by the action of the electron flow, and a handy material such as dust paper can be used as the dust collection filter. It was possible to provide.

[Brief description of drawings]

FIG. 1 is a structural explanatory view showing an internal configuration of an embodiment of the present invention.

FIG. 2 is a partially enlarged view of the embodiment shown in FIG. 1 in which the electrode, which is a main component, has another shape.

FIG. 3 is a structural explanatory view showing an internal configuration of another embodiment of the present invention.

FIG. 4 is a partial enlarged view of the embodiment shown in FIG. 3 in which the electrode, which is a main constituent element, has another shape.

FIG. 5 is a structural explanatory view of a conventional example.

FIG. 6 is a structural explanatory view of another conventional example.

[Explanation of symbols]

1 ... Wire mesh electrode 2 ... Dust collection filter 3 ... Many metal needle group electrodes 4 ... DC voltage power supply 5 ... Fan 6 ... Motor
7 ... Box 8 ... Air inlet 9 ... Air outlet 10 ... Air flow
1A ... Perforated metal plate electrode 3A ... Metal plate electrode with protrusion 11 ... Charging filter 12 ... Discharge electrode 13 ... Dust collecting electrode

Claims (2)

[Scope of utility model registration request] 1. A dust collecting filter which is housed in a box body and allows the air sucked into the box body to pass therethrough, and a wire net or a perforated metal plate electrode provided in contact with the upstream side of the dust collecting filter, On the downstream side of the dust filter, a group of metal needles or projections provided with a space between the dust collection filter and a hole are provided with a perforated metal plate electrode, and this wire mesh or perforated metal plate electrode and many metal needles or projections. It is composed of a high voltage power source that applies a high DC voltage to the perforated metal plate electrode and a fan for sucking in air, from a perforated plate electrode with many metal needle groups or protrusions to a wire mesh or perforated metal plate electrode. An air purifier characterized by collecting dust by flowing an electron stream. 2. The dust collecting filter and the wire mesh or perforated metal plate electrode according to claim 1 are also provided on the downstream side of a large number of metal needle groups or perforated metal plate electrodes with protrusions. Air purifier.