JPH0331101B2 - - Google Patents

Description

Detailed Description of the Invention (Field of Industrial Application) This invention relates to electrodes and filters used in air cleaners that remove fine dust or odorous substances floating in the air in homes, offices, factories, etc. More specifically, the present invention relates to an electrode/filter for an air cleaner that is improved in terms of maintenance such as replacement of the negative electrode and filter.

(Prior art) An air cleaner that charges and attracts dust, etc. contained in the air by passing air through a high voltage band is disclosed in Japanese Patent Publication No. 17379/1985, which was invented by the inventor of the present application. The ones listed are known.

(Problems to be Solved by the Invention) Recently, many manufacturers have released this type of air cleaner, but most of them do not give deep consideration to maintenance. In other words, in the air cleaner of the above method, dust in the air is removed by adsorbing charged dust etc. to the negative electrode side, but as the adsorption progresses, the surface of the negative electrode becomes soot. There is a drawback that the adsorption efficiency is significantly reduced due to the fact that the adsorption efficiency is significantly reduced.

In addition, the structure is such that the soot-like dust that is scattered without being absorbed by the negative electrode is absorbed by the filter, but the dirt on the filter cannot be absorbed quickly and it scatters, not only contaminating the surrounding area but also causing eye irritation. complaints have been received. Furthermore, in conventional products, it is practically impossible for the user to clean the negative electrode, and maintenance, including filter replacement, is very complicated.

This invention was created in view of the above, and provides an electrode/filter unit for air cleaners that has high adsorption efficiency for dust, does not scatter unadsorbed charged dust, and is easy to maintain. Other objects and benefits of the invention will become apparent from the following description.

(Means for Solving the Problems) The electrode/filter unit for an air cleaner according to the present invention that achieves the above object has a U-shaped cross section, with the air flow direction and a part of the wall open, and a non-contact unit. A part of the open wall has a non-conductive frame with an opening that exposes the terminal of the positive electrode unit (described later), and a non-conductive support rod is erected on the non-conductive base. An electrode wire serving as a positive electrode is stretched over this, and a part of the base is protruded to form a positive electrode unit in which a positive terminal conductive to the electrode wire is arranged, and a space open in the direction of the air flow path. The conductive frame is placed on the base of the positive electrode unit so that the electrode wire of the positive electrode is located in the center of the space, and the sides of the frame have irregularities that change the air flow path. The negative electrode unit has a conductive mesh body and a filter that serve as the negative electrode arranged in a layered structure on a frame body that is open to the air flow direction, and a negative terminal is provided on the outside of the frame body. The filter units are arranged before and after the composite body of the positive electrode unit and the negative electrode line unit, and the conductive frame of the negative electrode unit is in contact with the conductive network of the filter unit at the front stage or the rear stage. The positive electrode unit, the negative electrode unit, and the filter unit can be pulled out and separated from the apparatus together with the frame, and each of these units can be pulled out from the frame and disassembled. Furthermore, when each unit assembled in the frame is inserted into the device, the positive terminal and the negative electron are connected to the respective terminals provided in the device.

(Function) To the positive electrode 20 and the negative electrode 30
Approximately turns on and off intermittently at a frequency of about 180/sec
When a pulse current of 3Kv to 7Kv is applied and air is circulated in the direction of the arrow using a blower such as a Sirotsko fan, coarse dust is first removed by the prefilter 40, and then a discharge phenomenon occurs from the positive electrode 23 to the negative electrode 30. As a result, dust particles in the air become positively charged and are attracted to the negative electrode 30 side. Dust and the like that pass through without being attracted to the negative electrode 30 are absorbed by the filter unit 41 in which the negative electrode 43 is provided.

During maintenance, either the whole unit or the negative electrode 30 and filter unit 4
Pull it out of the main body frame just enough to take out item 1, and clean it or replace it with a new one.

(Embodiment) FIGS. 1 and 2 are exploded perspective views of an embodiment of the present invention. In the figures, reference numeral 10 denotes a frame, which is made of a nonconductor such as synthetic resin. 20 is a positive electrode unit, 30 is a negative electrode unit,
40 and 41 are filter units, and 40 acts as a prefilter.

Each part will be explained in detail below.

The positive electrode unit 20 has a support rod 22 erected on a substrate 21 as shown in FIG.
A positive electrode 24 for ozone generation is placed at the tip of the electrode 2. 26 is a terminal continuous to the electrodes 23 and 24, and is connected to a power supply side terminal (not shown).

As shown in FIG. 1, the above-mentioned positive electrode unit 20 is preferably detachably attached to a substantially central space within the frame 10.

As shown in FIG. 2, the negative electrode 30 is a frame body that is open in the vertical direction, and is formed by molding synthetic resin or the like, by vapor-depositing a metal film on the surface, or by forming an aluminum mesh or punching. Constructed from wire mesh, etc.

Preferably, the negative electrode 30 is manufactured at low cost by an extrusion molding method using synthetic resin,
When performing maintenance, replace it with a new one.

Note that 31 and 32 are uneven portions that change the air flow path.

Next, the filter units 40 and 41 will be explained.
In a frame 42 that is open in the vertical direction, a layered structure consisting of a net 43, preferably made of aluminum, and a filter 44 formed of, for example, a filter turret manufactured by Sumitomo 3M Co., Ltd., is arranged.

Incidentally, a deodorizing agent, an aromatic agent, a desiccant, etc. may be arranged in the filter units 40 and 41.

45 is a terminal, which is connected to a negative terminal on the power supply side (not shown).

Note that the negative electrode 30 is connected to the lower surface of the filter unit 40 arranged in the upper stage and becomes a negative electrode, but in the embodiment in which the filter unit 40 is not arranged, an independent terminal for the negative electrode 30 is prepared. .

Although not shown, a means for attaching/fixing to the frame of the air cleaner is provided on the outer side of the frame 10, but the frame 10 may be configured to be completely removable. The structure may be such that it can be moved sufficiently to remove the negative electrode 30 and filter units 40 and 41.

(Effects of the Invention) Since the electrode/filter unit for an air purifier of this invention is constructed as described above, it can be easily replaced or cleaned by the user himself if it gets dirty, which is extremely beneficial for maintenance compared to conventional products. Since the electrodes and filters can always be used without contamination, there is an advantage that high dust adsorption efficiency can be obtained. In particular, according to the present invention, it is possible to take out the knit from the main body device and put it on,
The unit can be easily disassembled and assembled even by users without special training skills, and cleaning or replacing parts is incomparably more convenient than conventional products. Compared to conventional products that required service engineers to provide service, this product has the advantage of guaranteeing maintenance of high-quality air cleaning functions at a low cost.

[Brief explanation of drawings]

1 and 2 are exploded perspective views showing one embodiment of the present invention. In the figure, 10 is a frame, 20 is a positive electrode unit, 30 is a negative electrode unit, and 40 and 41 are filter units, respectively.

Claims (1)

[Claims] 1. Air flow path direction and wall surface in a U-shaped cross section.
Some parts of the wall are open, and some of the walls are not open.
A non-conductive frame is provided with an opening that exposes the terminal of the positive electrode unit (described later), a non-conductive support rod is erected on the non-conductive base, and the electrode wire that will become the positive electrode is attached to this. A positive electrode unit is a conductive frame having a space open in the direction of the air flow path, and has a positive terminal connected to the electrode wire with a part of the base protruding. The negative electrode unit is placed on the base of the electrode unit so that the electrode wire of the positive electrode is located in the center of the space, and the side surface of the frame has unevenness that changes the air flow path. A conductive mesh body, which serves as a negative electrode, and a filter are arranged in a layered structure on a frame body that is open in the direction of the flow path, and a filter unit with a negative terminal provided on the outside of the frame is connected to a positive electrode unit and a negative terminal. a filter unit disposed before and after the composite body with the electrode unit, the conductive frame of the negative electrode unit being in contact with the conductive mesh of the filter unit in the front stage or the rear stage; unit, the negative electrode unit, and the filter unit can be pulled out from the device together with the frame and separated, and furthermore, each of these units can be pulled out and disassembled from the frame, and can be assembled into the frame. However, when each unit is inserted into the device, the positive terminal and the negative electron are connected to respective terminals provided within the device. Electrode/filter unit for air cleaners.