JPH0710197Y2 - Air conditioner filter - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a filter for an air conditioner, particularly a filter suitable for use as a long-life filter for a ceiling-suspended type or a ceiling-embedded air conditioner that is difficult to maintain. .

<Prior Art> Conventionally, as a filter for a ceiling-embedded air conditioner, for example, a filter as shown in FIG. 4 is known (Actual Kaihei 1-
No. 125924). This filter 21 is formed by providing a filter material 23 in a rectangular outer frame 22, and at the tip of a blowout duct 25 of an air conditioner that is airtightly fixed to an opening 24 in the ceiling, an elastic member protruding from the inner peripheral edge of this tip. The holding metal fitting 26 is pushed out and inserted from the indoor side (see arrow A), and is attached and held.

<Problems to be solved by the invention> However, since the conventional filter 21 is mounted on the ceiling where maintenance such as inspection and replacement is difficult, use an expensive filter material that can withstand continuous use for about one year. There is. Further, since the outer frame 22 of the filter is made by integrally forming a synthetic resin in accordance with the dimensions of the individual openings 24 and the blowout duct 25, the versatility is poor and the filter material is expensive. There is a drawback that the manufacturing cost is high.

In order to eliminate this drawback, a method in which the filter is modularized into a unit filter having a predetermined size and an arbitrary number of the unit filters are connected according to the size of the outlet duct 25 can be considered. But,
When each unit filter is produced by a conventional molding process, each unit filter 31 has a front draft surface where the outer peripheral edge of the outer frame 32 becomes narrower toward the surface as shown in FIG. 5 (refer to α in the figure). ). Therefore, when these unit filters 31 are arranged so that their surfaces are aligned on one side and are sequentially connected at the side edges, the connected and integrated filters are not straight but bent, as shown in FIG. There is a problem of being intolerable and useless.

Therefore, an object of the present invention is to reduce the cost by mass production by devising a shape in which the side edges of the unit filters are straightened so that the filters that are connected and integrated are straight and easy to mold and process. An object of the present invention is to provide an air conditioner filter that can significantly improve the air conditioner.

<Means for Solving the Problems> In order to achieve the above object, the filter of the air conditioner of the present invention has a rectangular outer frame 2 formed by molding as illustrated in FIGS. 1 and 2. The unit filter 1 is constructed by sequentially connecting a plurality of unit filters 1 each having a filter material 3 at its side edges 2l and 2r.
A fitting protrusion 4b is provided at a predetermined position of one side edge 2l of the outer frame 2, and a fitting hole 8b is provided at a position of the other side edge 2r opposed to the fitting protrusion 4b. Either the part from the fitting protrusion 4b to one end of the outer frame or the part to the other end, the beveled sloped surface 6b whose width becomes wider toward the outer frame surface.
And the other part is formed on the front draft slope surface 7 whose width becomes narrower toward the outer frame surface.
And the front draft slope surface 7 are symmetrical with respect to the center plane Pc that divides the outer frame 2 into two in the thickness direction and intersect each other within the center plane Pc, while the other side edge 2r is fitted. It is characterized in that both sides of the hole 8b are formed in draft planes 10b and 11 which have the same width and are parallel to the portions 6b and 7 of the one side edge 2l respectively facing each other.

<Operation> In the outer frame 2 of the unit filter 1, a fitting protrusion 4b is provided at a predetermined position of the one side edge 2l, and a fitting hole 8b is provided at a position of the other side edge 2r facing the fitting protrusion 4b. A part of the one side edge 2l from the fitting protrusion 4b to one end of the outer frame is formed on the back sloped surface 6b, for example, and a part to the other end of the outer frame is formed on the front sloped surface 7, respectively. 7 are symmetrical with respect to a center plane Pc that divides the outer frame 2 into two in the thickness direction, and intersect with each other within the center plane Pc. Further, the portions on both sides of the fitting hole 8b of the other side edge 2r of the outer frame 2 are formed in draft slope surfaces 10b and 11 which are parallel to the portions 6b and 7 of the opposite one side edge 2l and have the same width. There is. Therefore, if one side edge 2l of a certain unit filter 1 is connected to the other side edge 2r of another unit filter 1, the fitting protrusion 4b of the one side edge 2l will be connected to the other side edge 2r.
Of the fitting protrusion 4b, and the inclined surfaces 6b and 7 that are symmetrical with respect to the center plane Pc on both sides of the fitting protrusion 4b are
The unit filters 1 and 1 are connected in a straight line with their surfaces aligned to one side, and are connected together in a state that they are difficult to come off, because they are in close contact with the similar sloped surfaces 10b and 11 on both sides of 8b. Also, by changing the number of connected unit filters, it is possible to easily cope with blowout ducts of various sizes.

<Embodiment> The present invention will be described in detail below with reference to an illustrated embodiment.

FIG. 1 shows an example of a unit filter which is a unit constituent element of a filter for an air conditioner of the present invention. The unit filter 1 has a long life in a rectangular outer frame 2 made by molding synthetic resin. A mold filter material 3 is provided.

The outer frame 2 has a fitting protrusion 4a protruding from the frame surface at a position equidistant from the upper and lower ends of the one side edge 2l (approximately 1/5 of the frame length).
Place 4b near the inside of these protrusions on the back surface of the frame (Fig. 1 (c)).
The fitting protrusions 5a and 5b projecting from each side are provided respectively, and the width from one side edge 2l from the fitting protrusions 4a and 4b to one end and the other end of the outer frame is widened toward the frame surface. While forming on the backing sloped surfaces 6a, 6b (see FIG. 1 (c)), the portion between the fitting projections 5a, 5b is formed on the front surface sloped surface 7 whose width decreases toward the frame surface. are doing. As shown in FIG. 1 (c) and FIG. 2, the backing sloped surfaces 6a, 6b and the front cutout sloped surface 7 are center planes that divide the outer frame into two in the thickness direction.
They are formed so as to be symmetrical with respect to Pc and to intersect with each other in the center plane Pc. Also, both sloped surfaces 6a, 7
Are separated by a plane Pa including the rising edges of the fitting protrusions 4a, 5a facing each other at the shortest distance (see FIG. 1 (b)).
6b and 7 are also separated by the same plane Pb (see FIGS. 1 (b) and 2).

On the other hand, on the other side edge 2r of the outer frame 2, the fitting protrusions 4a, 4b,
Fitting holes 8a, 8b, 9a, 9b into which the protrusions fit exactly are provided at positions facing 5a, 5b, respectively, and the portions from the fitting holes 8a, 8b to one end and the other end are opposed to one side edge. 2l part 6a, 6
Formed on the front draft slopes 10a, 10b that are parallel with b and have the same width (Fig. 1) (b), (c), Fig. 2)
The portion between 9a and 9b is formed as a backing sloped surface 11 that is parallel to the portion 7 of the opposite side edge 2l and has the same width. Both slopes 10a, 11 and 10b, 11 are the above-mentioned planes Pa, Pb.
Are separated from each other (see FIG. 2).

That is, as can be seen from FIG. 2, the outer frame 2 of the unit filter 1 is fitted by connecting the other side edge 2r of the same shape with its one side edge 2l aligned with the front side to each other. Compound protrusion
4b and 5b are fitted in the fitting holes 8b and 9b of the other unit filters, respectively, and the back sloped surfaces 6a and 6b and the front sloped surface 7 are the front sloped surfaces 10a of the other unit filters facing each other. ,Ten
The shape is such that the separation planes Pa and Pb are in exact contact with the b and the beveled sloped surface 11 with the separation planes Pa and Pb aligned. The upper and lower ends 2u and 2d of the unit filter 1 are shown in FIG. 1 (b).
The surface is a sloped surface as shown in.

A plurality of unit filters having the above configuration are connected to form an air conditioner filter as follows.

FIG. 3 is a front view of the unit filter as seen from the upper edge side 2u, in which the fitting protrusions 4a, 4b; 5a, 5b project from one side edge 2l of the outer frame of the first unit filter 1a, and the other side. Fitting holes 8a, 8b; 9a, 9b are provided at positions of the edge 2r facing these protrusions. Further, the beveled slope surfaces 6a, 6b on both sides of the fitting protrusions 4a, 4b of the one side edge 2l are symmetrical with respect to the front surface draft surface 7 between the fitting protrusions 5a, 5b and the center plane Pc of the outer frame 2. And, while intersecting with each other in the center plane Pc, the facing portion of the other side edge 2r is also a sloped surface 10a, 10b, 11 which is parallel to each of the sloped surfaces with the same width, and both side edges 2r, The adjacent slopes of 2l are separated by the same planes Pa and Pb, respectively (see FIGS. 1 (b) and 2). Therefore, by connecting the one side edge 2l of the second unit filter 1b to the other side edge 2r of the first unit filter 1a with their front sides aligned with each other, the fitting protrusions 4a, 4b, 5a of the one side edge 2l, 5b fits into the fitting holes 8a, 8b, 9a, 9b of the other side edge 2r, respectively, and the opposite inclined surfaces 6a, 10a; 7, 11; 6b, 10b are separated planes P.
Since a and Pb are in close contact with each other in the aligned state, the unit filters 1a and 1b are connected in a straight line (see the center plane Pc) and in a state in which they cannot easily come off. Furthermore, if the third unit filter 1c is similarly connected to the other side of the second unit filter 1b, a filter having a triple width can be obtained.

In this way, the unit filter 1 is attached to the side edges 2l, 2r of the outer frame 2.
Since it is possible to easily correspond to the blowout ducts of air conditioners of various sizes by connecting any number in sequence with,
Conventionally expensive long-life filters for ceiling suspension and embedded air conditioners, which are difficult to maintain, can be manufactured inexpensively with mass production effects due to improved versatility due to modularization.

In the above-described embodiment, one unit filter is provided with four fitting protrusions and four fitting holes, and both end edges of both side edges 2l and 2r of the outer frame are backed,
In the front draft slope surfaces 6a, 10a; 6b, 10b, the central portion is formed on the opposite surface and the back draft slope surfaces 7, 11 respectively, so that adjacent slope surfaces are separated by two common planes Pa, Pb. Therefore, there is an advantage that a plurality of unit filters that are connected and integrated are more difficult to come off with respect to the external force in the vertical, horizontal, and vertical directions of the outer frame.
Further, the fitting protrusions 4a and 4b on both ends of the one side edge 2l of the outer frame are provided on the surface opposite to the drawing direction of the backing sloped surfaces 6a and 6b at the time of molding, and the fitting protrusion 5a on the center side. , 5b are provided on the same back surface, and the fitting holes 8a, 8b, 9a, 9b of the other side edge 2r are provided on the side of the drawing direction at the time of the molding process, which facilitates the molding process and the mold. There is an advantage that the production of can be simplified.

Needless to say, the present invention is not limited to the illustrated embodiment.

<Effect of Device> As is apparent from the above description, the filter of the air conditioner of the present invention has the fitting protrusion at the predetermined position of the one side edge 2l of the outer frame of the unit filter and the above-mentioned fitting of the other side edge. Fitting holes are provided at the positions facing the projections, and either one or the other of the fitting projections at one side edge is formed on the back sloped surface, and the remaining part is formed on the front sloped surface. , The two sloped surfaces are symmetrical with respect to a center plane that bisects the outer frame in the heat direction, and intersect each other in the center plane, while the portions on both sides of the fitting holes on the other side edges are Since it is formed on the draft surface that is parallel and has the same width as the opposite side edges,
By connecting any number of unit filters in sequence at their side edges, the filters can be easily configured on one plane for various sizes of outlet ducts, and a long-life filter, which was particularly expensive due to the integral formation, is modularized. Due to the improved versatility, it can be manufactured at a reasonable price with mass production effect.

[Brief description of drawings]

FIG. 1 is a view showing an embodiment of a unit filter which is a unit constituent element of a filter of an air conditioner of the present invention, FIG. 2 is a partial perspective view of the unit filter, and FIG. 3 is a connection state of the unit filter. Fig. 4 is a diagram showing a filter of a conventional ceiling-embedded air conditioner, Fig. 5 is a diagram showing a conventional unit filter, and Fig. 6 is a diagram showing a connected state of a conventional unit filter. is there. 1 ... Unit filter, 2 ... Outer frame, 2l ... One side edge, 2r ...
… Other side edge, 2u …… Upper edge, 2d …… Lower edge, 3 …… Filter material, 4a, 4b, 5a, 5b …… Mating protrusion, 6a, 6b, 11 …… Slanted surface, 7, 10a, 10b …… Sloping front surface, 8a, 8b, 9a, 9b …… Mating hole, Pc …… Center surface.

Claims (1)

[Scope of utility model registration request] 1. A plurality of unit filters (1) each having a filter material (3) provided in a rectangular outer frame (2) formed by molding are sequentially connected at their side edges (2l, 2r). In the filter of the air conditioner configured as described above, a fitting protrusion (4b) is provided at a predetermined position on one side edge (2l) of the outer frame (2) of the unit filter (1), and the other side edge (2r) is A fitting hole (8b) is provided at a position facing the fitting protrusion (4b), and a part from the fitting protrusion (4b) of the one side edge (2l) to one end of the outer frame or the other end. One of the parts is a back draft slope surface (6b) that widens toward the outer frame surface, and the other part is a front draft slope surface (7) that narrows toward the outer frame surface. Which are respectively formed on the outer frame (2), and the back sloped surface (6b) and the front sloped surface (7).
Are symmetrical with respect to a center plane (Pc) that bisects them in the thickness direction and intersect with each other within the center plane (Pc), while the fitting hole (8b) of the other side edge (2r) is formed. A filter for an air conditioner, characterized in that both side portions are formed as draft surfaces (10b, 11) having the same width and parallel to the portions (6b, 7) of the one side edge (2l) facing each other. .