JPH07265632A - Filter unit of air cleaner - Google Patents

Abstract

PURPOSE:To provide a lightweight and inexpensive filter unit easy to handle and capable of being easily discarded after use. CONSTITUTION:A corrugated board consisting of plural core layers and a liner is bent in the shape of a U, a couple of the left and right bents are butted to form a frame 1, a series of filter mediums 2a is folded to form a filter element 2 which is undulated, the adjacent end faces are connected with a connection material 2c of kraft paper, and a strap cardboard 3 is fixed to the upper and lower faces of the element 2 to integrate the elements. A group of the elements is placed in the frame 1, the upper and lower strap cardboard 3 are adhered to the inner face of the horizontal piece 1b of the frame 1, and the part of the edge of the element 2 on both sides in contact with the inner face of a vertical piece 1a is sealed with a paper bandage 5. A lightweight filter unit made entirely of paper and easily disposable is obtained in this way.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION This invention is applicable to office buildings, hospitals,
The present invention relates to a filter unit of an air purifier used for air conditioning, exhaust treatment or deodorizing treatment in factories and the like.

[0002]

BACKGROUND ART Generally, office buildings and electronic components manufacturing plants, in hospitals, the outside air duct D ₁ as shown in FIG. 7,
Machine room M in which a return duct D ₂ and an air supply duct D ₃ are connected in series.
Shelf-shaped air purifier A, cold / hot water coil B,
A humidifier C, an eliminator E, a blower F, and the like are provided, and air taken in from the outside air duct D ₁ and the recirculation duct D ₂ is sequentially passed through the above-mentioned members in the machine room M to be harmonized and purified. The generated air is sent to the required room through the air supply duct D ₃ .

As a filter for purifying the taken-in air, a series of filter media a such as filter paper and non-woven fabric with or without activated carbon is corrugated as shown in FIG. Is used as a filter element e by closing it with a groove-shaped material b made of kraft paper, processed paper for packaging or the like. A plurality of the filter elements e are erected so as to have a flat corrugated shape as shown in FIG. Line up,
The front and rear end surfaces are connected by a tie material c made of the above paper material, and the front and rear end surfaces are arranged inside a rectangular frame G, and the upper and lower end surfaces of each filter element e and the sides of both sides. The edge portion is sealed with an adhesive S, and a tape-like packing material g is attached to the rear end surface (front side in the figure) of the frame body G to form a filter unit U.
Are fitted in the respective compartments of the air purifier A in a replaceable manner.

[0004]

By the way, in the conventional filter unit U, the frame G is made of wood, metal (aluminum) or plastic, and the weight of wood or metal is heavy and difficult to handle. Since the height is high and the upper and lower end plates and side plates are screwed together, it is difficult to disassemble when used and the metal cannot be incinerated. On the other hand, plastic has the advantages of being lightweight, inexpensive, and easy to handle, but when used, it cannot be easily incinerated from the viewpoint of preventing pollution.

Therefore, an object of the present invention is to provide a filter unit for an air purifier which is lightweight, inexpensive, easy to handle, and easy to dispose after use.

[0006]

Based on the above-mentioned object, the present invention provides a filter unit for an air purifier.
A thick corrugated cardboard consisting of multiple layers of corrugated cores and liners is folded to form a frame, while filter paper or non-woven fabric is pleated and the required number of filter elements with both sides closed with paper grooves. And the front and rear end surfaces which are alternately adjacent to each other are connected by a paper tie member, and the wavy arrangement filter elements are housed inside the frame body, and the upper and lower surfaces thereof are the inner surface of the lateral piece of the frame body. It is characterized in that the filter element on both sides seals the edge portion in contact with the inner surface of the vertical piece of the frame body, and the packing material is fixed to the rear end surface of the frame body. Is characterized in that a packing material made of an elastic resin foam is fixed to the rear end surface of the frame body.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A filter unit U according to the present invention will be described below with reference to FIGS. FIG. 1 shows a main part of an example of the present invention in a separated manner. Reference numeral 1 denotes a frame body forming an outer shell of a filter unit U, having a thickness of 10 mm to 15 mm, and a corrugated core 1c and a liner 1d having a plurality of layers. (Three layers in the figure) Made of thick corrugated cardboard, in this example, a pair of left and right, which is a vertical piece 1a and upper and lower horizontal pieces 1b that are bent to form a U-shape. Is formed as.

Reference numeral 2 is a filter element, and as described above, a series of filter media 2a such as filter paper or non-woven fabric with or without deodorizing activated carbon is corrugated, and both sides in the longitudinal direction are kraft paper. It is covered with a tough groove 2b such as paper or processed paper for packaging, and the required number of them are erected, and adjacent ones are arranged so that the front and rear edges alternately contact each other to form a flat corrugated shape. The front and rear end surfaces of the filter elements 2 which are provided in contact with each other are connected by a strip-shaped tie material 2c (see FIG. 3) made of kraft paper, processed paper for packaging, etc., and arranged in a wavy shape. To the upper and lower ends, a patch material 3 made of paperboard having a length and width substantially equal to the inner length and width when the horizontal pieces 1b of the left and right sides of the frame 1 are butted is adhered, and each filter is attached. Element 2 is these It is summarized in one by relying material 3.

The upper and lower horizontal pieces 1b of the left and right members of the frame 1 are butted against each other as shown in FIG. 2, and the strong joining material 4 similar to the joining material 2c is bonded to the outer surface of the butted portion. Thus, the frame body 1 is formed into a rectangular frame, and the required number of filter elements 2 which are gathered in a wave shape by the upper and lower padding members 3 are housed therein, and the upper and lower padding members 3 are the upper and lower horizontal pieces of the frame body. The rear side edge of the filter element 2 which is adhered to the inner surface of 1b and is located on both sides (front side in the figure)
The connecting member 2 is attached to the portion of the frame 1 that contacts the inner surface of the vertical piece 1a.
As shown in FIG. 3, a strip 5 made of the same material as c is adhered and sealed in an angle shape, and the rear end face of the frame body 1 (the end face on the front side in the figure) is shaped like an adhesive tape for the mounting device frame. The packing material 6 is firmly fixed to form one filter unit U.

In use of the filter unit U, the filter unit U is fitted and attached to a predetermined partition shelf of the frame of the air purifier in the machine room, and the air taken in from the outside air duct and the recirculation duct is in the direction of the arrow in FIG. By traversing the filter element 2, the dust and odor components contained in the air are removed, and the purified air is sent to the required room through the air supply duct. Also, when the filter element 2 is clogged due to the passage of time, it is removed from the vessel frame and replaced with a new one.

FIG. 4 shows an example in which an elastic packing material 16 made of a foam such as polyurethane, polyvinyl chloride, or polyethylene is fixed to the rear end surface of the corrugated paperboard frame body 1. At the stage where the corrugated filter elements 2 are attached to the inside of the frame body 1, the frame body 1 is placed on a rectangular frame-shaped mold T in which a predetermined amount of the liquid resin m is injected therein as shown in FIG. The liquid resin m is reacted and solidified by placing it so that its rear end face enters the mold T. At that time, the resin m enters inside the corrugated board of the corrugated paper which is the main material of the frame body 1. At the same time, the end portion of the pad material 3 is also wrapped, and the packing material 16 is firm and seamless over the entire circumference as compared with the above tape-shaped material that adheres a fixed length to each vertical piece and horizontal piece. It is firmly fixed to the frame body 1.

In the above example, the frame body 1 made of thick corrugated cardboard is bent in a U shape so that a pair of left and right members are butted against each other. However, as shown in FIG. It is also possible to fold the corrugated cardboard paper in four from one end to the other end, cut both ends diagonally, and abut them, and join the abutted portions with the connecting material 4. Further, in the above-described example, the required number of filter elements 2 arranged in a wave shape are combined with the upper and lower padding members 3 so as to be easily handled, and the filter elements 2 are mounted on the frame body 1. However, this is not always the case. It is not necessary that the horizontal piece 1b of the frame 1 is appropriately positioned so that the series of filter elements 2 are directly bonded to the inner surface of the horizontal piece 1b. Then, instead of the band member 5, an adhesive may be applied to seal the portions where the edges of the filter elements 2 on both sides are in contact with the inner surface of the vertical piece 1a of the frame 1. Further, in the above-mentioned example, the portion where the rear end edges of the filter elements 2 located on both sides are in contact with the inner surface of the vertical piece 1a of the frame is arranged on the downstream side with respect to the air flow, but this is the upstream side. Each filter element 2 so that it is on the side
The arrangement may be reversed.

[0013]

INDUSTRIAL APPLICABILITY The present invention provides a filter unit for an air purifier used for air conditioning, deodorization, etc. of various buildings.
Since it is configured as described above, not only can the air purification process be efficiently performed by the filter element having the wavy arrangement, but also the overall weight is light and easy to handle.
It is inexpensive, and when the filter element is clogged and is used up, it can be removed from the frame of the air purifier and easily incinerated. Then, if a packing material made of an elastic resin foam is attached to the rear end surface of the frame body, the packing material is not cut along the entire circumference of the frame body, and is firmly inserted into the tissue of the corrugated paper. It can be firmly fixed.

[Brief description of drawings]

FIG. 1 is a perspective view of an example of a filter unit according to the present invention with a frame member and a filter member separated.

FIG. 2 is a perspective view of a frame member assembled with a filter member as seen from the rear side.

3 is an enlarged perspective view of the lower left corner of FIG.

FIG. 4 is a perspective view of another example of the filter unit viewed from the rear side.

FIG. 5 is a partially cut side view showing a method for attaching a resin foam packing material to a frame body.

FIG. 6 is a side view of a modified example of the frame body.

FIG. 7 is a perspective view showing an example of an air conditioning facility of a building.

FIG. 8 is a perspective view of a filter element.

FIG. 9 is a perspective view of a conventional filter unit seen from the rear side.

[Explanation of symbols]

 1 Frame 1a Vertical piece 1b Horizontal piece 2 Filter element 2a Filter material 2b Groove shape material 2c Connecting material 3 Patch material 5 Band material 6 Packing material 16 Packing material U Filter unit

Claims (2)

[Claims] 1. A frame is formed by bending a thick corrugated cardboard paper consisting of a corrugated core and a liner having a plurality of layers.
Filter paper or non-woven fabric is pleated, and the required number of filter elements whose both sides are closed with paper grooves are arranged in a required number of waves, and the front and rear end faces that are alternately adjacent to each other are connected with a paper binder, and the wavy An edge portion in which the arranged filter elements are housed inside the frame body, their upper and lower surfaces are hermetically attached to the inner surface of the horizontal piece of the frame body, and the filter elements on both sides are in contact with the inner surface of the vertical piece of the frame body. A filter unit for an air purifier, characterized in that a sealing material is sealed and a packing material is fixed to the rear end surface of the frame body. 2. The filter unit for an air purifier according to claim 1, wherein a packing material made of an elastic resin foam is fixed to the rear end surface of the frame body.