JP2691436B2 - Air filter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention is used in an air handling unit (hereinafter referred to as an air han) and a building air conditioner (hereinafter referred to as an air conditioner) such as a fan coil. Regarding air filters. More specifically, the present invention relates to an air filter in which the filter can be easily replaced after use and the volume can be easily reduced.

(Prior Art) Conventionally, an air filter used for a building air conditioner such as an air hanger has an outer frame (1) as shown in FIG. It is common practice to use a metal plate material such as a steel plate. Further, the outer frame (1) and the material (2) to be housed inside are bonded by a resin (3) such as urethane or epoxy in order to prevent air leakage.

(Problems to be solved by the invention) However, in the above-described conventional air filter configuration, the outer frame and the material are fixed by resin and integrated, so the filter after use must be replaced for each outer frame. Since the weight of the main body is around 10 kg, considerable effort and effort is spent. In addition, the outer frame does not actually function as a filter and is merely for supporting and protecting the material and for facilitating installation on the air conditioner, and has an extremely long life compared to the life of the material. However, even though it has sufficient strength to withstand use, it has been replaced and is economically extremely lossy. Furthermore, even when disposing of used filters, the metallic outer frame
Needless to say, the wooden outer frame also has a drawback that parts such as nails, wood screws and the like and metal parts used for joining are left unburned in the normally used incineration.

(Means for Solving the Problems) In order to solve the above-mentioned drawbacks, the present invention seals the upper and lower ends of a material with a shape memory resin that can be bent in a zigzag manner, and separates the material from the wooden frame. The problem is solved by adopting a structure that facilitates exchange and transportation.

(Operation) By adopting the above configuration, only the material needs to be replaced after use, the weight is reduced, and the labor required for transportation and replacement can be saved. Further, since only the material and the resin are left, only ash remains when incinerated, and crushing can be performed as a process other than incineration, resulting in a high volume reduction rate. Further, by adopting the shape memory resin, it is possible to fold and transport the filter when not in use and after use, so that the packaging can be made into a small package, and the transportation cost can be reduced.

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

FIG. 1 is a partial perspective view showing an example of implementation of the present invention. As shown in the drawing, the upper and lower ends of the material (2) are adhered and fixed by a shape memory resin (4), for example, Nosolex (product of Zeon Corporation). The shape memory resin (4) is formed by bending the pleats (5) and the bending line (6) located at the center of the pleats.
Bends between the peaks to the inside of the filter. As for the temperature and shape to be memorized, it is sufficient that the shape memory resin (4) is flat at the operating temperature of the filter. The memory shape when the replacement work is performed at low temperature is flat, and the memory temperature is the minimum. The temperature should be below the operating temperature (the difference is preferably about 10 ° C or more). When the replacement work is performed at a high temperature, the memory shape should be bent, and the memory temperature may be the maximum operating temperature or higher (the difference is preferably about 10 ° C. or higher).

FIG. 2 is a front view of the air filter when the shape memory resin (4) is bent, and the air filter is treated in this state before and after use.

FIG. 3 is a partial cross-sectional view showing an example of the connection relationship between the air filter of the present invention and the outer frame (1) supporting the air filter, and the air filter is packed in the outer frame (1) ( 7) Press to prevent air leakage,
It is fixed by a pressing jig (8). As shown in the figure,
It is sufficient that the outer frame (1) and the filter are fixed without air leakage, but the present invention is not limited to this fixing method.

(Effect of the invention) According to the present invention, by separating the outer frame and the material,
The weight is reduced, and labor required for material replacement and transportation is saved. Further, since the used filter is made of only material and resin, it can be easily incinerated, and the crushing process can be performed as a separate process, so that the volume reduction rate can be increased. In addition, the shape memory resin makes the filter body smaller when not in use, allowing for small packaging of packaging, reducing packaging and transportation costs, and using the outer frame multiple times, which saves resources. It has an effect.

[Brief description of the drawings]

FIG. 1 is a perspective view of an air filter showing an embodiment of the present invention, FIG. 2 is a partially cutaway front view when the same shape memory resin is bent, and FIG. 3 shows an outer frame mounted state of the air filter. Partial sectional view and FIG. 4 are perspective views of a conventional air filter. (1) …… Outer frame, (2) …… Material, (3) …… Resin,
(4) …… Shape memory resin, (5) …… Material pleats,
(6) …… Bending line, (7) …… Packing, (8) ……
Pressing jig.

Claims (1)

(57) [Claims] 1. A filter used in a building air conditioner, such as an air handling unit and a fan coil, in which the upper and lower ends of a pleated material are sealed with a bendable shape memory resin. An air filter that is characterized by