JPS63221820A - Filter element - Google Patents

Abstract

PURPOSE:To provide a filter with a wide filtering area by folding a filter sheet in wavy shapes in two directions, vertical and horizontal. CONSTITUTION:An end plate 11 of an air filter A is formed in a rectangle and provided with a through-hole 13. A filter element is formed by folding a filter sheet 21 in V-shape. Also, the filter sheet 21 is folded in two directions, vertical and horizontal. The filter element is inserted into the through-hole 13 and fixed with an adhesive. Air blown in from the underside of the filter A is filtered by the filter sheet 21 and discharged upward from the through-hole 13 of the end plate 11. A wide filtering area, therefore, can be provided without narrowing the intervals between each of folding lines as was in the conventional cases.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a filter element that filters fluid such as air using a filter sheet.

[Prior art]

In the conventional filter element E of this kind, as shown in FIG. 6, the filter sheet 21 is folded into a wave shape, and the air is filtered by flowing the air from the direction of the arrow.

[Problems with conventional technology]

However, in such a conventional filter element, since the filter sheet 21 is simply folded into a wave shape, if the number of folds is increased in an attempt to increase the filtration area, the distance between the fold lines 2 and 2 will increase. As a result, it becomes difficult for air to flow, resulting in a reduction in filtration efficiency.

[Means for solving the above problems]

The present invention has been made to solve the above-mentioned disadvantages, and has a configuration in which a filter element is formed by bending a filter sheet into a V-shape, and the filter sheet is formed in a corrugated shape. The filter element is characterized in that the wave direction of the wave shape is perpendicular to the folding line of the filter sheet.

[Action of the invention]

In the filter element according to the present invention, the filter sheet is
In the filter element formed by folding the filter sheet into a letter shape, the filter sheet is formed into a wave shape, and the wave direction of the wave shape is perpendicular to the bending line of the filter sheet. Since the filter is bent in two directions, vertically and horizontally, the filter area can be increased even further.

[Explanation of Examples]

Embodiments of the present invention will be described below based on the drawings.

1 to 3 show a first embodiment.

In FIG. 1, 11 is an end plate of the air filter A, which is formed in a rectangular shape. This end plate 11 has through holes 13
has. Reference numeral 15 denotes an auxiliary cylinder having a substantially rectangular cross section, which is integrally formed along the edge of the through hole 13 of the end plate 11. This auxiliary cylinder 15 protrudes toward the back side (downward in FIG. 2), and its diameter decreases toward the tip. Note that the short side of the auxiliary cylinder 15 is extended to form a side plate 17.17.

On the other hand, in FIG. 3, 19 is a V-groove of the filter element E, which is formed by bending the wave-shaped filter sheet 21. In this case, the bending line is substantially perpendicular to the wave direction of the wavy shape on the filter sheet 21.

As shown in FIGS. 1 and 2, the filter element E configured in this manner is fitted into the through hole 13 of the end plate 11 and fixed to the inner wall surface of the auxiliary cylinder 15 with an adhesive. At this time, the filter sheet 21 and the through hole 1 of the end plate 11
A synthetic resin 23 that functions as an adhesive is placed between the three edges.
is packed.

In this air filter A, air blown from below is filtered by the filter sheet 21 and discharged upward from the through hole 13 of the end plate 11, as indicated by the arrow in FIG.

FIGS. 4 and 5 show a second embodiment.

In this embodiment, the corrugated filter sheet 21 is bent into a zigzag shape to form a plurality of V grooves 19, 19. ... was formed.

In the embodiments described above, the filter sheet refers to filter paper,
Refers to filtration members such as non-woven fabrics.

〔Effect of the invention〕

The filter element according to the present invention has a filter sheet with V
In the filter element formed by folding the filter sheet into a letter shape, the filter sheet is formed into a wave shape, and the wave direction of the wave shape is perpendicular to the bending line of the filter sheet. Since the filter is bent in two directions, vertically and horizontally, the filter area can be increased even further.

Therefore, if this filter element is used, there is no need to narrow the interval between the bending lines in order to widen the filtration area, as is the case with conventional methods, and as a result, air circulation is ensured, resulting in improved filtration compared to conventional methods. Efficiency increases.

[Brief explanation of the drawing]

The drawings show embodiments of the filter element according to the present invention. Fig. 1 is a perspective view of the first embodiment, Fig. 2 is a sectional view taken along line nn in Fig. 1, and Fig. 3 is a cross-sectional view of the first embodiment. FIG. 4 is a diagram of the second embodiment corresponding to FIG. 1, FIG. 5 is a diagram of the second embodiment corresponding to FIG. 3, and FIG. 6 is a perspective view of the conventional example. It is a diagram. 21...Filter sheet E...Filter element L...Bending line patent application Artificial Intelligence Co., Ltd. Figure 1 Figure 2゛Δ Figure 3 Figure 4 Figure 5

Claims (1)

[Claims] (1) In a filter element formed by folding a filter sheet into a V-shape, the filter sheet is formed into a wave shape, and the wave direction of the wave shape is perpendicular to the bending line of the filter sheet. A filter element characterized in that it is a direction.