JPH0664709U - Panel type air filter - Google Patents

Abstract

(57) [Summary] [Object] To provide a panel type air filter used for an air conditioner or the like, in which an inflow cross section of air can be appropriately set and a filtering area is increased. [Structure] The filter elements 13 are arranged in a zigzag manner in the outer frame case 11, and the filter pieces 13a and 13b forming the filter elements are bent at a predetermined angle.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present application relates to a panel-type air filter used with an air conditioner.

[0002]

[Prior art]

 As shown in FIG. 4, a conventionally known panel type air filter has a structure in which a filter body 2 is disposed in a rectangular outer frame case 1. The filter body 2 has a filter element 3 with a V-shape. It is made by combining the shapes.

As shown in FIG. 5, the filter element 3 is formed by folding a rectangular filter paper 3a and fixing side walls 3b on each side surface thereof.

Air flows in from the front surface of the outer frame case 1, flows through the filter body 2, and flows out toward the rear surface. The dust in the air is captured by the filter body 2 during this period.

[0005]

[Problems to be solved by the device]

 The above air filter has the drawback that it is extremely difficult to control the filtration state because the filtration elements 3 are arranged in a V shape. That is, the space formed between the filter elements 3 is a V-shaped space, and the air flow passage extending from the inlet surface to the rear end of the V-shape should be gradually reduced at a constant rate. become. Then, since the velocity of the flow toward the rear end of the V-shaped space becomes maximum, the load on the filter element 3 located at that portion becomes heavy. As a result, it will have a short life.

[0006]

[Means for Solving the Problems]

 Inside the outer frame case where the front and back surfaces are open, rectangular filter paper is folded and the side walls are provided with side walls and the upper and lower plates are provided with upper and lower end plates. The filter bodies are arranged in zigzag in units of, and the upper and lower end plates of each filter piece are fixed to the inner surfaces of the upper and lower side walls of the outer casing, and the side walls at both ends are fixed to the inner faces of both side walls of the outer casing. The filter pieces are each bent at a predetermined angle.

[0007]

[Action]

 The fold angle between the filter pieces can be varied to create air channels with different cross sections. When the space between the filtration parts is bent, the filtration area per given volume increases.

[0008]

【Example】

 The panel type air filter of the present invention will be described with reference to the embodiments of FIGS. 1 and 2. The panel type air filter 10 includes an outer frame case 11 whose front and rear surfaces are open, and a filter body 12.

The outer frame case 11 has side walls 11a, 11b, 11c and 11d on the upper, lower, left and right surfaces.

The filter body 12 is formed of a plurality of filter elements 13. The filtering element 13 includes a filtering piece 13a and a filtering piece 13b. Each of the filtering pieces 13a and 13b is formed by folding a rectangular filter paper and providing side plates 14a and 14b on the side surfaces thereof and upper and lower end plates 15a and 15b on the upper and lower surfaces thereof. The side plates 14a and 14b of the filter pieces 13a and 13b are joined together through a relatively flexible kraft paper or the like. As a result, the filter pieces 13a and 13b can be folded between the side plates. The filter pieces 13a and 13b are arranged in a zigzag manner as one unit to form the filter body 13.

The upper and lower end plates 15a, 15b of the filter pieces 13a, 13b of the filter body 12 are fixed to the inner surfaces of the side walls 11c, 11d of the outer frame case 11, respectively. Further, the side plates 14a of the filter piece 13a at both ends of the filter body 12 are brought into contact with and sealed by the side walls 11a and 11b.

As shown in FIG. 2, in the present embodiment, the filter pieces 13a and 13b are bent at the points where they are joined, and the opening A between the filter pieces 13a and 13a on the inlet side and the filter piece. The ratio of the opening 13b between the openings 13b and 13b is changed as compared with the case of the conventional V-shaped arrangement.

The aperture ratio between A and B changes by changing the bending angle.

In FIG. 2, air flows in from the front surface of the outer frame case 11, passes through the filter pieces 13a and 13b, and flows out. The dust in the air is captured by the filter body 12 including the filter pieces 13a and 13b.

[0015]

[Effect of device]

 As described above, the panel-type air cleaner of the present invention can change the shape of the inflow passage of the air flowing into the filter body, so that an appropriate flow passage shape can be set according to the usage of the air cleaner. . Moreover, since each filter piece can be bent, the filtration area is increased.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a horizontal sectional view of FIG.

FIG. 3 is a plan view of a filter element.

FIG. 4 is a sectional view of a conventional filter corresponding to FIG.

FIG. 5 is a perspective view of a conventional filtration element.

[Explanation of symbols]

 11 Outer Frame Case 12 Filter Body 13 Filter Element 13a, 13b Filter Piece 14a, 14b Side Wall

Claims (1)

[Scope of utility model registration request] 1. An outer frame case having front and rear surfaces open,
Rectangle-shaped filter paper is folded and side walls are provided on the side surfaces, and upper and lower end plates are provided on the upper and lower surfaces, and the side walls of the filter pieces are joined together, and a filter body is arranged in a zigzag with two of these filter pieces as units. Then, the upper and lower end plates of each filtering piece are fixed to the inner surfaces of the upper and lower side walls of the outer frame case, the side walls at both ends are fixed to the inner surfaces of both side walls of the outer case, and the panel type air is bent at a predetermined angle. filter.