JPH10156121A - Filter of air cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a filter enabling to enhance airtightness between a folded filter material and a frame part in the filter used in an air cleaner. SOLUTION: The airtightness between the folded filter material 2 and the frame part 9 is enhanced by providing a two pack foaming filler 10 filled in the inside of the frame part 9 consisting of a paper material provided on the surroundings of the folded filter material 2 and formed in a cross-section of a frame shape, infiltrating the two pack foaming filler 10 into the folded filter material 2 and fixing it to the frame part 9 inside.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filter for an air purifier for filtering a fluid using the air purifier.

[0002]

2. Description of the Related Art Conventionally, this type of filter has been disclosed in
One described in Japanese Patent Publication No. 14095 is known.

Hereinafter, the filter will be described with reference to FIGS. 8 and 9. As shown in the figure, a filter 104 is formed by bonding a folded filter medium 101 and an outer frame 102 made of a nonwoven fabric having a two-layer structure having elasticity in the thickness direction with a rigid adhesive 103 at room temperature. I was

FIG. 10 shows a known activated carbon unit used in an air purifier together with a filter.

[0005] As shown in FIG.
Are formed integrally with a synthetic resin to form a synthetic resin frame 203, and activated carbon 204 is placed in the box 202.
And a spider web-like adhesive sheet 205 and a nonwoven fabric 206
At the same time to form an activated carbon unit.

[0006]

In such a conventional filter 104, an adhesive 103 made of a hot melt resin is used.
Is used, the filter medium 101 and the outer frame 102 made of non-woven fabric having the surface coated with the adhesive 103 are bonded by heating and melting, so that it is difficult to completely seal the filter medium 101 and a gap is formed between the filter medium 101 and the outer frame 102. In some cases, the outer frame 102 is formed of a non-woven fabric, so that the outer frame 102 has a low rigidity, is easily deformed, and has a problem that unfiltered fluid flows into the device when incorporated in an air purifier. It is required to do so.

[0007] The fold filter medium 101 is provided with an outer frame 102.
Until it is fixed to the outer frame 102, it is in a free state and extends in the direction of the fold and cannot be held in a fixed shape. Therefore, it is difficult to handle. However, there is a problem that workability in the manufacturing process is deteriorated, and it is required to unitize the fold filter material.

The activated carbon unit is a synthetic resin frame 203.
Since it is formed by using, there is a problem that the folding cannot be performed, the volume of the synthetic resin frame 203 during storage and transportation is large and the handling property is poor, and the disposal of the activated carbon unit becomes difficult. It is also required that the disposal process should be easy.

The present invention has been made to solve such a conventional problem and can improve the airtightness between the pleated filter medium and the frame portion. An object of the present invention is to provide a filter of an air purifier that can improve productivity by integrally forming an activated carbon unit.

[0010]

In order to achieve the above object, a filter for an air purifier according to the present invention comprises a pleated filter medium formed by folding a flat filter medium made of PP non-woven fabric or glass fiber into a pleated shape. The pleated filter medium includes a frame portion made of paper material having a cross section formed in a frame shape provided on the four circumferences of the pleated filter material, and a two-component foamed filler filled in the inner surface of the frame portion. The liquid foaming filler is penetrated and fixed in the frame.

According to the present invention, it is possible to obtain a filter for an air purifier capable of improving the airtightness between the pleated filter medium and the frame.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention relates to a pleated filter medium formed by folding a flat filter medium made of PP nonwoven fabric or glass fiber into a pleated shape, and a cross-section provided on the four circumferences of the pleated filter material in a frame shape. And a two-component foam filler filled on the inner surface of the frame, and the two-component foam filler is penetrated into the fold filter material to be fixed in the frame. Since the two-pack foam filler filled in the frame penetrates the fold filter material,
The airtightness between the frame and the fold filter material is enhanced, and the filter is formed firmly by holding the fold filter material by the paper frame.

[0013]

【Example】

(Embodiment 1) Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

As shown in FIG. 1 to FIG.
A flat filter medium made of non-woven fabric or glass fiber is bent into a pleated shape to provide ridges and valleys alternately to form a pleated filter medium 2. 3 is applied to the streaks at intervals, to maintain the folded state of the pleated filter medium 2 and unitize the pleated filter medium 2.

Further, paper frames 5 are provided on the upper and lower surfaces of the partition 4 made of a foldable paper material in which a large number of polygonal spaces are formed at the time of development, and the partition 4 is held in the developed state. The lower nonwoven fabric 6 is attached to the lower surface and the lower surface paper frame 5, and activated carbon 7 is provided in each space within the partition 4, and the upper surface of the partition 4 and the upper surface paper frame 5 are provided.
To form an activated carbon unit 8.

Then, a paper material made of cardboard paper or the like having a thickness of about 0.5 mm is formed in a rectangular shape, and a U-shaped cross section is inserted so as to be inserted into an edge portion of the folded filter material 2 and the activated carbon unit 8 in a superposed state. To form a frame 9 by diagonally cutting both ends in the longitudinal direction so that they can be attached to each other. A two-pack foam filling consisting of a polyurethane main agent and polymethylene polyphenyl polyisocyanate is formed on the inner surface of the frame 9. The frame part 9 is inserted into a jig 11 for filling the material 10, the two-component foam filler 10 is filled, and the filled two-component foam filler 10 is drip-free in a state where dripping has started and foaming has started. The inner surface of the frame portion 9 is brought into contact with the four circumferences of the fold filter material 2, and the two-component foam filler 10 filled on the inner surface of the frame portion 9 is made to permeate and adhere to the fold filter material 2 to form the filter 1.

When the filter 1 constructed as described above is incorporated in an air purifier, a filter housing portion provided on a suction side of an air flow path 14 formed through a fan motor 13 in a main body 12 of the air purifier. The filter 1 is mounted inside the filter 15 via a packing 16, and a front panel 17 is provided on the windward side of the filter 1.

When the air purifier incorporating the filter 1 is operated as described above, the contaminated air sucked in from the front panel 17 by the fan motor 13 passes through the filter 1.
The water is filtered by the fold filter material 2, deodorized by the activated carbon unit 8, and discharged.

Since the pleated filter medium 2 is held by the frame 9 made of corrugated cardboard having an appropriate thickness, the filter 1 has an appropriate rigidity when incorporated in an air washer. In addition, the two-part foam filler 10 penetrates the fold filter medium 2 and the frame 9 and the fold filter medium 2 are bonded to each other, so that the airtightness between the frame 9 and the fold filter medium 2 increases, The filtration fluid can be prevented from flowing into the air purifier.

Further, since the hot-melt 3 is applied to the crests of the pleated filter medium 2 so that the pleated filter medium 2 can be maintained in a folded state, the pleated filter medium 2 is unitized. Is maintained at a constant size, and is easy to handle. In addition, since the activated carbon unit 8 is provided integrally with the fold filter medium 2 in the frame portion 9, the productivity is improved as compared with the case where the activated carbon unit 8 is formed separately, and the assembling work into the air purifier is easy. Become.

Further, since the activated carbon unit 8 uses the foldable partition 4 made of a paper material, storage, transportation, and disposal are easier than in the case where a partition made of synthetic resin is used.

[0022]

As is clear from the above embodiments, according to the present invention, the two-pack foam filler penetrates the pleated filter material and the pleated filter material is joined to the frame, so that the pleated member and the frame are joined together. It is possible to provide a filter of an air purifier having improved airtightness with the section.

Further, since the pleated filter material is unitized, the handleability of the pleated filter material is improved, and the joining operation of the pleated filter material and the frame is facilitated.

Further, the pleated filter medium and the activated carbon unit can be simultaneously joined to the frame, so that the productivity can be improved.

Further, since the activated carbon unit uses a foldable partition made of a paper material, storage, transportation, and disposal are easier as compared with the case where a partition formed of resin is used.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating a configuration of a filter of an air purifier according to a first embodiment of the present invention.

FIG. 2 is a side view showing a configuration of a pleated filter medium of the filter according to the first embodiment.

3A is an exploded perspective view showing a configuration of an activated carbon unit of the filter of the first embodiment. FIG. 3B is an enlarged view of a main part showing a partition of the activated carbon unit of the filter of the first embodiment.

FIG. 4 is a sectional view showing a state of the filter of Example 1 at the time of filling with a two-component foam filler.

FIG. 5 is a cross-sectional view showing a state in which the frame of the filter of Example 1 is bonded to the fold-fold filter medium and the activated carbon unit.

FIG. 6 is a sectional view showing a state in which the filter of the first embodiment is incorporated in an air purifier.

FIG. 7 is an enlarged view showing a state when the filter of the first embodiment is incorporated in an air purifier.

FIG. 8 is a perspective view showing a configuration of a conventional filter.

FIG. 9 is a sectional view showing the configuration of the filter.

FIG. 10 is an exploded perspective view of the activated carbon unit.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Filter 2 Folded filter medium 3 Hot melt 4 Partition 6 Nonwoven fabric 7 Activated carbon 8 Activated carbon unit 9 Frame part 10 Two-component foam filler

Claims (4)

[Claims] 1. A pleated filter medium formed by folding a flat filter medium made of PP non-woven fabric or glass fiber into a pleated shape, and a paper material having a frame-shaped cross-section provided on four turns of the pleated filter material. An air cleaner comprising a frame portion and a two-component foam filler filled on the inner surface of the frame portion, wherein the two-component foam filler is impregnated into the fold filter material and fixed in the frame portion. filter. 2. A hot melt is applied to the ridges of the fold-fold filter medium at intervals in a direction perpendicular to the ridges to keep the fold-fold state of the fold-fold filter medium. The filter for an air purifier according to claim 1, wherein 3. The filter for an air purifier according to claim 1, wherein the activated carbon unit is integrally fixed to the frame together with the fold filter material. 4. An activated carbon unit comprising a partition made of a foldable paper material in which a large number of polygonal spaces are formed when unfolded, a nonwoven fabric covering an opening surface of the partition, and activated carbon provided in a space in the partition. The filter for an air purifier according to claim 3, which is configured.