JPH09294940A - Electrostatic air cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To change the shape of a dust collecting filter from three dimensional one into two dimensional one and to reduce a space for preserving the dust collecting filter by providing the freely attachable/detachable dust collecting filter on one surface side of a plate-shaped dust collecting electrode. SOLUTION: A dust collecting filter 7a is folded in the middle to press it on one surface side 6b of a plate-shaped dust collecting electrode 6a installed in an electrode plate fixing body 24 and the other side respectively (Arrow B). After that, both end fringes of one surface side 7a and the other surface side 7c of the dust collecting filter 7a are held respectively between electrode surfaces 6b, 6c by a pair of rotary holding bodies 23, 23. In this way, the dust collecting filter 7a of a paper sheet can be contacted closely with one surface side 6b and the other surface side 6c of the electrode 6a, respectively. Even in the replacement of a dust collecting filter 7b, the used dust collecting filter 7a can be taken out easily and instantly only by separating the pair of the rotary holding bodies 23, 23 respectively from the electrode surfaces 6b, 6c of the electrode 6a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrostatic air cleaning device capable of removing dust in air ionized by using an ion wind induced by corona discharge by a dust filter.

[0002]

2. Description of the Related Art Conventionally, an electrostatic air purifier of this type having a structure in which a dust collecting filter is attached to a dust collecting electrode is disclosed in, for example, Japanese Patent Publication No. 2-13091. There is.

That is, in the electrostatic air purifier disclosed in the above publication, as shown in FIG. 5, a two-part frame 4 having an intake port 2 and an exhaust port 3 and a suction opening 5 at the intake port 2 are provided. Consisting of hollow conical breathable electrode 6, dust collecting filter 7 mounted along the inner surface of the electrode 6, housed in the rear part of the frame 4 and composed of an electric motor 11 and rotary vanes 12. Fan 8
Removable suction grille body 9 covering the air intake 2 of the frame body 4
And a needle-shaped electrode 10 provided on the inner surface of the suction grill body 9.
And a high voltage generator (not shown) for applying a high voltage between the needle electrode 10 and the electrode 6, and the fan casing 13 of the blower blade 12 is formed integrally with the frame body 4. In addition, a large number of vent holes 14 are provided in the electrode 6, a synthetic resin closing plate 15 is attached to the rear end opening, and the opening peripheral edge of the electrode 6 located near the front end suction opening 5 is formed. Is provided with a flange portion 16 stretched outward, and the flange portion 16 is held by a holding portion 17 formed on the inner edge of the intake port 2 of the frame body 4 and holds the electrode 6. The frame 4 has a structure in which a ventilation path 18 is formed.

[0004]

However, in the electrostatic air cleaning device having the above-described structure, the following various problems have occurred.

That is, the electrostatic air purifying device having the above-described structure is substantially hollow conical and is located on the intake port 2 side of the frame body 4 so as to face the needle electrode 10 provided on the inner surface of the suction grill body 9. On the inner surface side of the breathable electrode 6, a dielectric material such as synthetic resin fiber body or glass fiber body using polyethylene, polypropylene or the like is used, and the whole shape is attached to the inner surface side of the substantially hollow conical breathable electrode 6. Since the dust collecting filter 7 formed in a substantially hollow conical shape is mounted as much as possible, the dedicated dust collecting filter 7 is always used as a consumable part for replacement for the electrostatic air purifying device, and a certain quantity is always in stock. Therefore, not only a storage place having a certain space or more is required for that purpose, but also storage management in terms of quality such as deformation of the dust collection filter 7 during storage is complicated, and The material is also synthetic resin fiber or Since the dust collecting filter 7 is made of a dielectric material such as a fibrous body, the cost of one product of the dust collecting filter 7 becomes very expensive, and not only economically burdened but also various resources such as resource saving and nature protection are provided. From the viewpoint, the dust collecting filter 7 having the above configuration is not always the best one, and some solution has been desired.

Further, since the electrostatic air purifying device having the above-mentioned structure is provided with the fan 8 including the electric motor 11 and the rotating blades 12 on the exhaust port 3 side of the frame body 4, a large amount of air is forcibly forced. In addition to being able to suck in the dust, the dust filter 7 collects dust and the like in the air charged by the ions generated by the corona discharge generated between the needle electrode 10 and the substantially hollow conical breathable electrode 6. However, depending on various conditions such as the amount of dust captured by the dust collecting filter 7, that is, the degree of contamination through the frequency of use of the dust collecting filter 7, etc. Not all the dust and the like charged by the ions captured by the dust collection filter 7 are captured with respect to the suction amount of the air generated through the fan 8, but the dust once captured by the dust collection filter 7 Can not be scattered or caught Dust and the like were also also cause a very serious problem that will be generated.

However, the present invention solves all of the above various problems, and even when an electrostatic air purifier is used, a storage place for a dedicated dust collecting filter as a consumable part for replacement or It is not only possible to use an extremely economical dust collection filter without having to pay any attention to storage management, but also when various conditions such as the degree of contamination due to the frequency of use of the dust collection filter are not constant. An extremely excellent electrostatic air purifier that can capture dust that has been charged by ions with extremely high efficiency without spattering dust that has once been captured or generating dust that cannot be captured even if there is The challenge is to provide.

[0008]

The present invention takes the following means in order to solve the above problems. That is, since the present invention is provided with the detachable dust collecting filter 7a on at least one surface side 6b of the plate-like dust collecting electrode 6a, the shape of the dust collecting filter 7a is changed from a three-dimensional shape to a planar shape. Therefore, it is possible to save the storage space of the dust collection filter 7a as a consumable part for replacement,
Further, there are various advantages that not only storage management related to deformation of the dust collecting filter 7a can be performed extremely easily but also the product cost of the dust collecting filter 7a itself can be reduced.

Further, since the dust collecting filter 7a is formed in the shape of a flexible sheet, the dust collecting filter 7a can be easily brought into close contact with at least one surface 6b of the plate-like dust collecting electrode 6a. Therefore, it becomes possible to attach dust, etc., which are charged by ions, to the entire surface of the thin sheet-shaped dust collecting filter 7a that is adhered to the entire surface of at least one surface side 6b of the plate-shaped dust collecting electrode 6a. Since it can be reliably captured, it is not necessary to use a dielectric material such as a synthetic resin fiber body or a glass fiber body using polyethylene, polypropylene or the like for the dust collecting filter 7a, and it is possible to use a general paper material or the like. This makes it possible to reduce the product cost of the dust collection filter 7a itself, save space, and facilitate storage management.

Further, at least one surface side of the plate-shaped dust collecting electrode 6a
Since 6b is provided with a means for attaching and detaching the dust collecting filter 7a, it has an advantage that the dust collecting filter 7a can be attached and replaced easily and speedily.

Further, in the apparatus body 1a of the electrostatic gas cleaning apparatus 1 having the plate-shaped dust collecting electrode 6a, thermal convection is generated in the air flowing to the plate-shaped dust collecting electrode 6a through the ionic wind. Heat source
Since 19 is provided, even if various conditions such as the degree of contamination via the frequency of use of the dust collection filter 7a are not constant, dust or the like that has been once captured cannot be scattered or caught. There is an advantage that the dust and the like charged by the ions can be guided to the dust collecting filter by the slight wind induced by the thermal convection with extremely high efficiency without generating the dust and the like.

Further, the heat source 19 is provided in the air passage 18 of the electrostatic air purifying apparatus body 1a having the ionizing electrode 10a and the plate-like dust collecting electrode 6a therein, and the air passage is provided in the apparatus body 1a.
Since the fan 8 that allows the air passing through 18 to pass through the second dust collecting filter 20 and to be introduced into the second ventilation path 18a and to be discharged is provided, the dust charged with ions with higher efficiency can be provided. Not only can be guided to the dust collection filter by the breeze induced by thermal convection and captured, but also at the start of the operation of the electrostatic air purifying apparatus body 1a until the heat source body 19 is sufficiently warmed. That is, it becomes possible to forcibly introduce air into the second ventilation passage 18a via the fan 8 until heat convection is efficiently generated, pass through the second dust collecting filter 20, and capture dust and the like. Therefore, the dust collecting ability from the initial operation of the air purifying apparatus main body 1a can be sufficiently and quickly exhibited without scattering the dust or the like captured in advance by the dust collecting filter 7a through the introduction wind generated by the fan 8. Letting out There are advantages to come.

Further, the fan 8 is driven and stopped for a predetermined time when the electrostatic gas cleaning apparatus 1 starts to operate, and the heat source body 19 generates heat either before or after the fan 8 is stopped to generate a plate shape. Since the heat convection is generated in the air flowing to the dust collecting electrode 6a, the air is forcibly introduced through the fan 8 until the heat source body 19 is sufficiently warmed, that is, until the heat convection is efficiently generated. To capture dust, etc., and then heat source
When 19 is sufficiently warmed, dust and the like charged by ions can be guided to and captured by the dust collecting filter 7a by the breeze induced by the thermal convection generated through the heat source body 19. There is an advantage that the dust collecting ability from the initial operation of the apparatus main body 1a can be sufficiently exerted.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION

<First Embodiment> In FIGS. 1 and 2, reference numeral 1 denotes an electrostatic air cleaning apparatus having a substantially rectangular shape in a front view and having a pair of legs 22 at a lower portion thereof, and 1a denotes an electrostatic air cleaning apparatus. Shows the body.

Reference numeral 2 denotes an intake port which is formed in the lower surface of the electrostatic air purifying device main body 1a and which can take in air from the front and rear direction of the electrostatic air purifying device main body 1a.
Indicates an exhaust port formed in the upper surface of the main body 1a of the electrostatic air purifying device and for negatively ionizing and purifying the air taken in and purified from the intake port 2.

Reference numeral 6a denotes a plate-shaped dust collecting electrode formed by bending one rectangular metal plate into a substantially V-shape in cross section, and the plate-shaped dust collecting electrode 6a has a substantially rectangular shape in a front view and is downward. The electrode plate mounting body 24 is tapered outwardly and has a substantially inverted isosceles triangular shape in cross section, and both ends of the electrode plate mounting screw 24a are attached.
It is attached to the electrode plate mounting body 24 via.

The plate-shaped dust collecting electrode 6a attached to the electrode plate mounting body 24 has one surface side 6b and the other surface side of the plate-shaped dust collecting electrode 6a.
The dust collecting filter 7a, which is formed of a rectangular paper sheet having flexibility so as to be easily bendable so as to be in close contact with each of the 6c, will be attached, but here it is formed of a paper sheet. A procedure for mounting the dust collecting filter 7a on the plate-shaped dust collecting electrode 6a will be described.

First, in the electrode plate mounting body 24 having the plate-shaped dust collecting electrode 6a, the convex portions 1e formed at both ends of the electrode plate mounting body 24 are attached to the electrostatic air purifying device body 1a. Since it is slidably fitted into the guide fitting concave portion 1c provided facing the inner side surface portion, as shown in FIG. 2, the front decorative cover 1b of the electrostatic air purifying apparatus main body 1a is detached, and The electrode plate mounting body 24 is pulled out from the guide fitting recess 1c (arrow A), and then the dust collecting filter 7a is bent from substantially the center to form one side 6b of the plate-shaped dust collecting electrode 6a provided on the electrode plate mounting body 24. Press each other on the other side 6c so that they are in close contact with each other (arrow B).

After that, a pair of rotations are urged against the electrode surfaces 6b and 6c through an elastic body 25 such as a coil spring provided on the electrode plate mounting body 24 and having a restoring force. Both ends of one side 7b and the other side 7c of the dust collecting filter 7a, which are held in close contact with the one side 6b and the other side 6c of the plate-like dust collecting electrode 6a by the holding bodies (attaching / detaching means) 23, 23, respectively. To the electrode surfaces 6b and 6c, respectively.
By holding (arrow C) between the dust collecting filter 7a formed of the paper sheet and the one surface side of the plate-like dust collecting electrode 6a.
6b and the other surface side 6c can be mounted in close contact with each other, and even when the dust collecting filter 7a is replaced, each of the pair of rotary holding bodies 23, 23 is attached to the plate-like dust collecting electrode 6a. Electrode surface 6b, 6c
There is an advantage that the used dust collecting filter 7a can be easily and instantly removed only by further separating them.

The reference numeral 10a denotes an electrostatic device to be positioned below the electrode plate mounting body 24 which is removably slidably fitted in a guide fitting recess 1c provided facing the inner side surface of the electrostatic air purifying device body 1a. 2 shows two ionizing electrodes stretched so as to be stretched over the inner side surface of the main body 1a of the air cleaning device, and 10b shows a pair of safety covers for the ionizing electrodes provided along the longitudinal direction of the ionizing electrode 10a. .

Reference numeral 19 denotes a heat source body using a tubular heater provided below two ionizing electrodes stretched so as to be bridged on the inner side surface of the main body 1a of the electrostatic air purifier,
The heat source body 19 is for generating natural thermal convection in the air flowing to the plate-shaped dust collecting electrode 6a through the ionic wind, and the heat source body 19 is the ionization electrode 10a and the plate-shaped dust collecting body. Ventilation passage 18 of the main body 1a of the electrostatic air purifier equipped with the electrode 6a
Further, the heat source body 19 is provided with a safety cover 19a for the heat source body provided along the longitudinal direction of the heat source body 19.

The electrostatic air purifying apparatus according to the first embodiment of the present invention has the above-mentioned structure. Next, the case of using the electrostatic air purifying apparatus will be described. First, as shown in FIG. 3, one surface of the plate-shaped dust collecting electrode 6a attached to the electrode plate mounting body 24 is provided in the electrostatic air purifying apparatus main body 1a of the electrostatic air purifying apparatus 1 having the above-described configuration. The dust collecting filter 7a formed of a flexible rectangular paper sheet is attached to the side 6b and the other surface side 6c via the rotary holding body 23, and the dust collecting filter 7a is Below the attached electrode plate mounting body 24, the plate-shaped dust collecting electrode is provided through ionic wind.
Since the heat source body 19 for generating heat convection in the air flowing to the 6a is provided, it is possible to change the shape of the dust collection filter 7a from a three-dimensional shape to a flat shape, and thus, it is consumed for replacement. Not only can the space for storing the dust collection filter 7a as a part be saved, and storage management related to deformation of the dust collection filter 7a can be performed very easily,
Therefore, it not only has various advantages that it is possible to reduce the product cost of the dust collection filter 7a itself, but also various conditions such as the degree of contamination through the frequency of use of the dust collection filter 7a. Even if it is not constant, dust that is once captured will not be scattered, and dust that cannot be captured will not be generated, and dust that has been charged by ions with extremely high efficiency will be collected by the breeze induced by thermal convection. There is a great advantage that the entire surface of the one side 7b and the other side 7c of the filter 7a can be reliably captured.

Further, since the dust collecting filter 7a is formed in the shape of a flexible sheet, the dust collecting filter 7a can be easily formed on the entire one surface side 6b and the other surface side 6c of the plate-shaped dust collecting electrode 6a. It becomes possible to attach it closely to, so that the dust or the like charged with ions is adhered to the entire surface of the one side 6b and the other side 6c of the plate-shaped dust collecting electrode 6a, and is formed into a thin sheet shape. Since the dust collection filter 7a can be reliably captured on the entire surface of the one surface side 7b and the other surface side 7c, the dust collection filter 7a is made of a synthetic resin fiber body or a glass fiber body or the like that uses polyethylene, polypropylene or the like. It is possible to use various paper materials such as ordinary tissue paver and paper towel without the need to use materials, reducing the product cost of the dust collection filter 7a itself, saving space and easiness of storage management. There are advantages.

Further, the dust collecting filter 7a is attached to the one surface side 6b and the other surface side 6c of the plate-like dust collecting electrode 6a through the attaching / detaching means composed of the rotary holding body 23 provided on the plate-like dust collecting electrode 6a. Since the dust collecting filter 7a is detachably attached, there is an advantage that the dust collecting filter 7a can be attached and replaced easily and speedily.

Further, since the heat source body 19 is provided in the air passage 18 of the main body 1a of the electrostatic air purifying apparatus in which the ionization electrode 10a and the plate-shaped dust collecting electrode 6a are installed, the heat source body 19 is more efficiently charged by the ions. There is an advantage that the dust and the like that have been collected can be guided and captured by the dust collecting filter 7a by the breeze induced by thermal convection.

<Second Embodiment> In the first embodiment, the electrostatic air purifier main body 1a includes an ionization electrode 10a.
The plate-shaped dust collecting electrode 6a through the ionic wind generated by
A heat source 19 for generating heat convection is provided to the air flowing to the device body. For example, as shown in FIG. 4, the device body 1a having the above-described structure is designed to pass through the ventilation path 18 of the device body 1a. The ionized air is supplied to the ionization electrode 10a of the apparatus body 1a.
To pass through the second dust collecting filter 20 detachably attached to the through hole portion 1d formed in the inner portion located above the second ventilation passage 18a and discharge it. A fan 8 capable of performing the above is provided, and the fan 8 is driven and stopped for a predetermined time at the start of operation of the electrostatic gas purifier main body 1a, and the heat source body 19 is either before or after the fan 8 is stopped. A configuration may be used in which heat convection is generated in the air that generates heat and flows to the plate-shaped dust collecting electrode 6a. In this case, when the operation of the electrostatic air cleaning apparatus body 1a is started, the heat source body 19 is sufficiently Until it is warmed up, that is, until heat convection is efficiently generated, air is forced through the fan 8 into the second ventilation path.
18a, it becomes possible to pass the second dust collecting filter 20 to capture the dust and the like, and thus the dust and the like previously captured by the dust collecting filter 7a can also be discharged by the fan 8. Not only can dust and the like in the air ionized by the second dust collection filter 20 be reliably captured without being scattered through, but when the heat source body 19 is sufficiently warmed, it is charged with ions. Dust etc. as a heat source
It is possible to guide and capture the dust to the dust collecting filter 7a by the breeze induced by the thermal convection generated via 19, so that the dust collecting ability from the initial operation of the air purifying device body 1a can be sufficiently exerted. There are advantages.

In each of the above-mentioned embodiments, the plate-shaped dust collecting electrode 6a is formed by bending a rectangular metal plate into a substantially V-shape in cross section, and bending the plate-shaped dust collecting electrode. A sheet-shaped dust collecting filter 7a is closely attached to the entire surfaces of the one surface side 6b and the other surface side 6c of the electrode 6a, but the plate-shaped dust collecting electrode 6a is not always bent in a V-shape in cross section. For example, a sheet-shaped dust collecting filter 7a may be closely attached to both sides 6b and 6c of a flat plate-shaped dust collecting electrode 6a (not shown). A sheet-shaped dust collecting filter mounted on the plate-shaped dust collecting electrode 6a regardless of whether the dust collecting electrode 6a is flat or bent into a V-shape in cross section as described above. 7a does not necessarily have to be attached to both the one surface side 6b and the other surface side 6c of the plate-shaped dust collecting electrode 6a, the point is that the plate-shaped dust collecting electrode 6a is detachably attached to at least one surface side 6b. It is sufficient that data 7a is provided, Even in this case, there is an advantage that can change the shape of the dust filter 7a steric ones to the plane ones.

Further, in each of the above-mentioned embodiments, the plate-shaped dust collecting electrode 6a has a substantially rectangular shape in a front view, and an electrode plate mounting body having a substantially inverted isosceles triangular shape in a cross-sectional view, which is formed to taper downward.
While being externally fitted to the electrode 24, both ends are attached to the electrode plate attaching body 24 via the electrode plate attaching screws 24a, but the plate-shaped dust collecting electrode 6a is not always attached to the electrode plate attaching member having the above-mentioned configuration. The plate-shaped dust collecting electrode 6a does not need to be externally attached to the body 24 via the electrode plate mounting screw 24a, and the point is that the plate-shaped dust collecting electrode 6a collects dust more against the air having ionized dust passing through the air passage 18. In order to reliably and highly efficiently capture the air, the air passage 18 is inclined toward the center side of the electrostatic gas purifying apparatus main body 1a downward while forming an air escape portion in the upper part. If it is possible to secure a maximum dust trapping area by being installed diagonally, the flat plate-like dust collecting electrode 6a (not shown) is installed obliquely in the ventilation path 18. Also, even in this case, it is possible to secure the maximum dust capture area. There are advantages.

Further, the plate-shaped dust collecting electrode 6a has one surface side 7b and the other surface side 7c between the one surface side 6b and the other surface side 6c of the plate-shaped dust collection electrode 6a. Although a means for attaching and detaching the dust collecting filter 7a using a pair of rotating holding bodies 23 for holding both ends of each of them is provided, the rotating holding body 23 does not necessarily collect the sheet-shaped dust collecting filter 7a in a plate shape. It is not necessary to hold the dust electrode 6a between the one surface side 6b and the other surface side 6c, and for example, the rotary holding body 23 should hold the dust collecting filter 7a on at least one surface side 6b of the plate-shaped dust collecting electrode 6a. It may be provided as a single body (not shown), and the plate-shaped dust collecting electrode of the dust collecting filter 7a
The attaching / detaching means to / from the 6a does not necessarily have to be the rotary holding body 23. For example, the attaching / detaching means can attach / detach to / from the plate-shaped dust collecting electrode 6a via various locking means. (Not shown), even in this case,
The dust collecting filter 7a can be attached to the plate-like dust collecting electrode 6a or replaced easily and speedily.

Further, in the apparatus body 1a of the electrostatic gas cleaning apparatus 1 having the plate-shaped dust collecting electrode 6a, thermal convection is generated in the air flowing to the plate-shaped dust collecting electrode 6a via the ionic wind. Although the heat source body 19 using a tubular heater is provided, the heat source body 19 does not necessarily have to use a tubular heater, for example, heat generated by various light bulbs may be used, and in this case, There is a great advantage on the product that the light emitted from the light bulb can be used to illuminate the main body 1a of the device main body 1a, to illuminate it, etc., and to make the product unique.

Further, in the above embodiment, the heat source body 19 is provided in the air passage 18 of the electrostatic air purifying apparatus body 1a in which the ionizing electrode 10a and the plate-like dust collecting electrode 6a are installed, and the apparatus body 1a is By providing the fan 8 that allows the air passing through the air passage 18 to pass through the second dust collecting filter 20 and be introduced into the second air passage 18a and discharged, the dust charged with ions with high efficiency is provided. Not only can be guided to the dust collection filter by the breeze induced by thermal convection and captured, but also at the start of the operation of the electrostatic air purifying apparatus body 1a until the heat source body 19 is sufficiently warmed. That is, it becomes possible to forcibly introduce air into the second ventilation passage 18a via the fan 8 until heat convection is efficiently generated, pass through the second dust collecting filter 20, and capture dust and the like. Therefore, pre-install the dust collection filter 7a. There is an advantage that the dust collecting ability from the initial operation of the air purifying apparatus main body 1a can be sufficiently and quickly exhibited without scattering the captured dust and the like through the introduction wind generated by the fan 8. Needless to say, it is not always an essential requirement in the present invention.

[0032]

As described above, even when the electrostatic air purifier is used, the present invention is completely careful about the storage location and storage management of the dedicated dust collecting filter as a consumable part for replacement. It is not only possible to use an extremely economical dust collection filter without having to use a filter, but it is also possible to capture once even if various conditions such as the degree of contamination due to the frequency of use of the dust collection filter are not constant. It is possible to provide an extremely excellent electrostatic air purifier that can capture dust charged with ions with extremely high efficiency without scattering dust and the like that are generated and generating dust that cannot be caught. It has a special effect that it can be done.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional front view of an electrostatic air purifying apparatus of the present invention.

FIG. 2 is a partial cross-sectional side view of the electrostatic air cleaning device of the present invention.

FIG. 3 is a partial cross-sectional side view showing a usage state of the electrostatic air cleaning device of the present invention.

FIG. 4 is a partial cross-sectional front view showing another embodiment of the electrostatic air cleaning device.

FIG. 5 is a cross-sectional view of a conventional electrostatic air cleaning device.

[Explanation of symbols]

 1 ... Electrostatic air purifying device 1a ... Electrostatic air purifying device main body 2 ... Intake port 3 ... Exhaust port 6a ... Plate-shaped dust collecting electrode 7a ... Dust collecting filter 18a ... Second ventilation passage 19 ... Heat source 20 ... Second dust collecting filter 23 ... Rotating and holding body (attaching / detaching means) 24 ... Electrode plate mounting body

Claims (6)

[Claims] 1. A plate-shaped dust collecting electrode (6a) having at least one surface side (6
An electrostatic air purifier equipped with a removable dust collection filter (7a) in b). 2. The electrostatic air purifying apparatus according to claim 1, wherein the dust collecting filter (7a) is formed in a flexible sheet shape. 3. The attaching / detaching means of the dust collecting filter (7a) is provided on at least one surface side (6b) of the plate-like dust collecting electrode (6a). Electrostatic air purifier. 4. The apparatus main body (1a) of the electrostatic gas cleaning device (1) having the plate-shaped dust collecting electrode (6a) is connected to the plate-shaped dust collecting electrode (6a) through ionic wind. 4. The electrostatic air purifier according to claim 1, further comprising a heat source body (19) for generating heat convection in the flowing air. 5. The heat source body (19) is an ionization electrode (10a).
And the ventilation path (18) of the electrostatic air purifying device main body (1a) in which the plate-like dust collecting electrode (6a) is installed, and the ventilation path (18) is provided in the main device body (1a). The fan (8) for allowing passing air to pass through the second dust collecting filter (20) and be introduced into the second ventilation passage (18a) and discharged therefrom. Electrostatic air purifier. 6. The fan (8) is an electrostatic gas purifier.
At the start of the operation of (1), it is driven for a predetermined time and stopped,
The heat source body (19) is configured to generate heat convection in the air flowing to the plate-shaped dust collecting electrode (6a) by generating heat either before or after the stop of the fan (8). Claim 5
The electrostatic air purifier as described in the above.