KR200455022Y1 - Filter frame - Google Patents

Abstract

The present invention relates to a filter frame for an air conditioner having a support frame and an outer frame integrally bent to increase durability and to greatly improve productivity through a simplified manufacturing process. To this end, in the filter frame 10 in which the frame members 100a, 100b, 100c, and 100d supporting each side end of the rectangular filter 20 having a predetermined thickness are coupled to each other, each of the frame members 100a, 100b, and 100c , 100d is bent to have a predetermined thickness and to be in contact with one side of the filter 20 and to have a predetermined length from both side ends of the side plate 112 to be in contact with the front and rear of the filter 20, respectively. A support frame 110 composed of first and second filter guides 114 and 116; And a first gasket guide 122 bent from an end of the first filter guide 114 to have a length longer than the first filter guide 114, and having an inner surface contacting an outer surface of the first filter guide 114. ) And an outer frame 120 formed around the front side of the support frame 110 by a second gasket guide 124 bent in parallel with the side plate 112 at the end of the first gasket guide 122. Provided is a filter frame comprising;

Filter, Frame, Filter Frame, Medium, Air Conditioning, Gasket, Spot Weld, Rivet

Description

Filter frame {Air filter frame}

The present invention relates to a filter frame for supporting an air filter used in various air conditioning equipment, and more particularly, a support frame and an outer frame are integrally bent to form a filter, which increases durability and greatly improves productivity through a simplified manufacturing process. It's about frames.

An air filter (hereinafter referred to as a `` filter '') is installed in the air conditioning facilities of general buildings and clean rooms of various industrial sites to remove the dust, impurities, and bacteria in the air and supply the purified air to the room. do. The filter may be classified into a pre filter, a medium filter, a HEPA filter, and the like according to the collection efficiency of dust and the like. Such a filter is accommodated in a frame-shaped filter frame is installed in a fixed frame pre-installed in the air conditioner.

1 is a view for explaining a conventional filter frame. As shown in FIG. 1, a conventional filter frame 1 includes outer frames 2 and 6 for fitting a gasket (not shown) to a fixed frame (not shown) of an air conditioner and a filter (not shown). It is composed of a support frame (4, 8) for supporting (not shown). The filter frame 1 further comprising outer frames 2 and 6 formed around the front sides of the support frames 4 and 8 is called a header type filter frame.

The manufacturing process of such a conventional header filter frame 1 is as follows. First, a metal plate cut to a predetermined shape is prepared, and a c-shaped outer frame 2 and a support frame 4, and a-shaped outer frame 6 and a support frame as shown in FIG. (8) is bent. Then, the outer frame 2 and the support frame 4 of the U-shape is coupled by spot welding the portion indicated by the arrow. A filter (not shown) is inserted into a portion of the filter frame 1 having a U-shape as described above, and a combination of the outer frame 6 and the support frame 8 corresponding to the other side of the filter frame 1 is welded. The filter frame 10 is completed by combining.

However, the conventional filter frame 1 is produced by making the outer frame (2, 6) and the support frame (4, 8) separately, combining them by spot welding. Therefore, since only a part of the outer frame (2, 6) and the support frame (4, 8) is coupled there is a problem that durability is poor. In addition, the air that is not filtered in the filter (not shown) is passed through the non-welded space between the outer frame (2, 6) and the support frame (4, 8) there is a problem that the filtration efficiency is reduced.

In addition, the conventional filter frame 1 takes a lot of manufacturing time because the outer frame 2 and the support frame 8 of the U-shape must be bent in various directions. In addition, since a plurality of spot welding must be performed by the manpower to combine the outer frame 2 and the support frame 8, a lot of manufacturing time and labor costs are required. As described above, the conventional filter frame 1 has a problem in that manufacturing cost is high and productivity is greatly reduced.

On the other hand, the conventional filter frame 1 is provided with a gasket (not shown) in the bent portion of the outer frame (2, 6) for the airtight between the outer frame (2, 6) and the fixed frame (not shown). However, the conventional filter frame 1 has to apply an adhesive to fix the gasket (not shown), which has a problem of cumbersome installation of the filter frame (1).

The present invention is to solve the above problems, an object of the present invention is to provide a filter frame that is improved in durability and easy to install the gasket by manufacturing the support frame and the outer frame integrally.

In addition, another object of the present invention is to provide a filter frame with improved productivity by simplifying and automating the manufacturing process.

Other objects, specific advantages and novel features of the invention will become more apparent from the following detailed description and the preferred embodiments described in connection with the accompanying drawings.

An object of the present invention as described above, in the filter frame 10 is coupled to each other frame member (100a, 100b, 100c, 100d) for supporting each side end of the rectangular filter 20 having a predetermined thickness, each frame The members 100a, 100b, 100c, and 100d each have a predetermined thickness and are formed to be bent to have a predetermined length from both side ends of the side plate 112 and the side plate 112, which are in contact with one side of the filter 20, and the filter 20 A support frame (110) consisting of first and second filter guides (114, 116) in contact with the front and rear surfaces thereof; And a first gasket guide 122 bent from an end of the first filter guide 114 to have a length longer than the first filter guide 114, and having an inner surface contacting an outer surface of the first filter guide 114. ) And an outer frame 120 formed around the front side of the support frame 110 by a second gasket guide 124 bent in parallel with the side plate 112 at the end of the first gasket guide 122. It can be achieved by a filter frame comprising a.

And, the filter 20 is a medium filter, the support frame 110 and the outer frame 120 is preferably a galvanized steel sheet.

In addition, the first filter guide 114 and the first gasket guide 122 is preferably a structure in contact with each other by pressing the press.

The outer frame 120 is further provided with a gasket fixing piece 126 bent inward from the end of the second gasket guide 124. In this case, the gasket fixing piece 126 preferably forms an acute angle with the second gasket guide 124.

Each of the frame members 100a, 100b, 100c, and 100d may be vertically bent inward from one end or the other end of the side plate 112 or the second gasket guide 124 to be coupled to each other. ) Is further provided. In addition, each of the frame members 100a, 100b, 100c, and 100d is spot welded, riveted, or bolted together.

Frame member of the filter frame according to an embodiment of the present invention has the advantage that the outer frame and the support frame is formed integrally bent using a bending machine and a press to improve durability. In addition, it is possible to achieve a reduction in manufacturing time and a reduction in manufacturing cost through an automated manufacturing process, which has the advantage of greatly improving productivity.

In addition, since the frame member of the present invention is integrally formed with the outer frame and the support frame, unfiltered air does not flow between the outer frame and the support frame, and thus, there is an advantage of preventing a decrease in filtration efficiency.

In addition, the frame member of the present invention includes the first and second connecting pieces bent at one end or the other end of the side plate or the second gasket guide. As a result, the durability of the filter frame is further improved, and there is an advantage in that each frame member can be more easily combined.

In addition, the outer frame of the present invention can be easily fixed to the gasket by forming the gasket fixing piece, which has the advantage that the installation of the filter frame is quickly made.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, it will be readily apparent to those skilled in the art that various other modifications and variations are possible without departing from the spirit and scope of the present invention. All of them belong to the scope of the utility model registration request attached.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail. First, in adding reference numerals to components of each drawing, the same reference numerals are used for the same components as much as possible even if they are shown in different drawings.

[Configuration of the present invention]

First, the configuration of the filter frame according to an embodiment of the present invention will be described with reference to the accompanying drawings.

2 is a perspective view illustrating a filter installed in a filter frame according to an embodiment of the present invention, FIG. 3 is an exploded perspective view of the filter frame according to an embodiment of the present invention, and FIG. 4 is A-A of FIG. 3. 3 is a cross-sectional view of the third frame member as seen in FIG. As shown in FIG. 2, the filter frame 10 according to an embodiment of the present invention has a form in which the first to fourth frame members 100a, 100b, 100c, and 100d are coupled to each other and have a constant thickness. Each side end of the filter 20 is supported. 2 is a perspective view as seen from the front side of the filter frame 10, that is, the air filtered through the filter 20 is discharged outward. On the other hand, the filter 20 according to the present embodiment is preferably a medium filter (medium filter) used in various air conditioning equipment. Medium filters generally have a collection efficiency of more than 90% and are used for pretreatment of HAPA filters used in semiconductor manufacturing facilities, or as final filters in air conditioning equipment in general buildings or industrial sites. The filter frame 10 of this embodiment accommodates a standard filter 20 having a square shape having a thickness of 100 mm and having a width of 592 mm and a width of 592 mm. At this time, the filter frame 10 of the present invention can be applied to other standard filters by manufacturing by varying the length and width of the first to fourth frame members (100a, 100b, 100c, 100d). It is also applicable to non-standard filters manufactured specially. In addition, the filter frame 10 of the present invention is not limited to a medium filter, and can accommodate and support a prefilter, a hepa filter, and the like.

On the other hand, the first to fourth frame members (100a, 100b, 100c, 100d) is preferably made of a galvanized steel sheet excellent in corrosion resistance and strength. In this case, the first to fourth frame members 100a, 100b, 100c, and 100d may be made of metal sheet such as stainless steel, aluminum alloy, etc. in addition to the galvanized steel sheet. The first to fourth frame members 100a, 100b, 100c, and 100d according to the present embodiment are cut into a predetermined shape by using a cutter to cut a galvanized steel sheet having a thickness of 0.5 mm, and by plastic processing using a bending machine and a press. Are manufactured.

Hereinafter, the bending structure of the frame members 100a, 100b, 100c and 100d will be described with reference to FIGS. 3 and 4. At this time, the bending structure of each of the frame members (100a, 100b, 100c, 100d) is the same as shown in Figure 3 will be described with reference to Figure 4 showing the third frame member (110c). Frame member (100a, 100b, 100c, 100d) according to an embodiment of the present invention is a support frame 110 for receiving and supporting one side end of the filter 20 as shown in Figure 4, and the support frame Is formed around the front side of the 110 is composed of an outer frame 120 to accommodate the gasket (30).

The support frame 110 is composed of side plates 112 and first and second filter guides 114 and 116. The side plate 112 has a width corresponding to the thickness of the filter 20 and is in contact with one side of the filter 20. The first and second filter guides 114 and 116 are each bent to have a predetermined length from both side ends of the side plate 112, and are in contact with the front and rear surfaces of the filter 20, respectively.

 The outer frame 120 includes a first gasket guide 122, a second gasket guide 124, and a gasket fixing piece 126. The first gasket guide 122 is bent from the end of the first filter guide 114 to have a relatively longer length than the first filter guide 114. At this time, the first gasket guide 122 and the first filter guide 114 are pressed by a press so that the inner surface of the first gasket guide 122 is in contact with the outer surface of the first filter guide 114. It is desirable to be. In addition, the second gasket guide 124 is bent to be parallel to the side plate 112 at the end of the first gasket guide 122. Thus, the outer frame 120 is formed around the front side of the support frame 110, the gasket 30 between the inner surface of the first and second gasket guides 122 and 124 and the outer surface of the side plate 112 Is accommodated in.

The gasket fixing piece 126 is bent to a length of about 5 mm inward from the end of the second gasket guide 124 as shown in FIG. The gasket fixing piece 126 preferably forms an acute angle with the second gasket guide 124, and the acute angle is more preferably 30 ° to 45 °. Therefore, the gasket 30 made of urethane or synthetic rubber is elastically deformed and easily inserted into the outer frame 120. In addition, the gasket 30 inserted into the outer frame 120 is fixed by the gasket fixing piece 126 by its elastic restoring force, so that the gasket 30 is separated from the outer frame 120 without applying an adhesive. You can prevent it.

On the other hand, the first to fourth frame members (100a, 100b, 100c, 100d) having the bent structure as described above are each side plate 112 or the second gasket guide 124 to be coupled to each other as shown in FIG. The first and second connecting pieces 113, 125 are further provided bent inward 90 ° from one end or the other end of the. According to the present embodiment, as shown in FIG. 3, first and second connection pieces 113 and 125 are formed at one ends of the first and third frame members 100a and 100c, and both ends of the fourth frame member 100d. First and second connecting pieces 113 and 125 are formed in the upper and lower ends, respectively. At this time, the first connecting piece 112 is in contact with the side plate 112 of the other frame member, the second connecting piece 125 is in contact with the second gasket guide 124 of the other frame member. Each of the frame members 100a, 100b, 100c, and 100d is spot welded, riveted, or bolted through both ends of the first and second connecting pieces 113 and 125 and the first gasket guide 122. According to this embodiment, the first and second connecting pieces 113 and 125 serve to enhance the durability of the filter frame 10 and to easily couple the respective frame members 100a, 100b, 100c and 100d.

[Manufacturing process of filter frame of the present invention]

Hereinafter, a manufacturing process of a filter frame according to an embodiment of the present invention will be described with reference to the accompanying drawings.

First, a process of manufacturing the frame members 100a, 100b, 100c and 100d will be described with reference to FIG. 5. 5 is a flowchart for explaining a manufacturing process of the frame member, and shows a cross section of the galvanized steel sheet in the manufacturing process. At this time, the rectangular galvanized steel sheet (224 mm × 592 mm) is subjected to a line process to be cut into a predetermined shape by using a cutter, and then subjected to a plastic working process by a bending machine and a press as follows.

First, one end (about 5 mm) in the width direction of the galvanized steel sheet is bent upward by 135 ° to 150 ° to form the gasket fixing piece 126. Therefore, the galvanized steel sheet and the gasket fixing piece 126 is made of about 30 ° ~ 45 °.

Next, the second gasket guide 124 is formed by bending 90 ° away from the bent portion of the gasket fixing piece 126 upward by 90 °.

Next, the second filter guide 116 is formed by bending 90 ° away from the other end of the galvanized steel sheet by 90 ° downward, and about 41.5 mm away from the second gasket guide 124. The side plate 112 is formed by bending 90 ° downward. At this time, according to the present embodiment, the width of the side plate 122 has 150 mm corresponding to the thickness of the filter 20.

Next, the first filter guide 114 and the first gasket guide 122 are simultaneously formed by bending the space of about 9.2 mm away from the side plate 122 by 145 ° to 160 °.

Next, the first filter guide 114 and the first gasket guide 122 opened by about 25 ° to 30 ° are pressed using a press to contact each other. Accordingly, the first filter guide 114 and the first gasket guide 122 are plastically deformed to be parallel to each other.

Finally, although not shown in FIG. 5, after the above process, the first and second connecting pieces 112 and 125 that are cut at one end or the other end of the side plate 112 or the second gasket guide 124 are bent inward by 90 °. Done.

On the other hand, the first to fourth frame members (100a, 100b, 100c, 100d) manufactured through the above process is coupled through the following process. First, as shown in FIG. 3, the first frame member 100a and the third frame member 100c are coupled to both ends of the second frame member 100, respectively, to form a filter frame 10 having a C shape as a whole. Complete part of it. At this time, the first and second connecting pieces 113 and 125 formed at one end of the first frame member 100a and the third frame member 100c are respectively the side plate 112 and the second gasket guide of the second frame member 100b. Contact 124. Then, a spot weld or a rivet 130 is coupled to the portion indicated by the arrow of FIG. 3. Next, the filter 20 is inserted into the support frame 110 of the first to third frame members 100a, 100b, and 100c. Finally, the first connecting piece 113 and the second connecting piece 125 of the fourth frame member 100d are in contact with the side plate 112 and the second gasket guide 124 of the first frame member 100a, respectively. The assembly of the filter frame 10 is completed by assembling, spot welding or joining the rivet 130.

The gasket (not shown) is fitted to the outer frame 120 to maintain airtightness when the filter frame 10 manufactured through the above process is mounted on a fixed frame (not shown) pre-installed in the air conditioner. At this time, since the gasket (not shown) is firmly fixed by the gasket fixing piece 126 without using an adhesive, it is possible to quickly install the filter frame 10.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, it will be readily apparent to those skilled in the art that various modifications and variations are possible without departing from the spirit and scope of the present invention, and all such changes and modifications are It is obvious that it belongs to the scope of the attached utility model claim.

1 is an exploded perspective view for explaining a conventional filter frame.

Figure 2 is a perspective view showing a state in which the filter is installed in the filter frame according to an embodiment of the present invention.

Figure 3 is an exploded perspective view of the filter frame according to an embodiment of the present invention.

4 is a cross-sectional view of the third frame member seen from AA ′ of FIG. 3.

5 is a flow chart for explaining a manufacturing process of the frame member.

<Description of the symbols for the main parts of the drawings>

10: filter frame 20: filter

30: gasket 100a: first frame member

100b: second frame member 100c: third frame member

100d: fourth frame member 110: support frame

112: side plate 113: first connecting piece

114: first filter guide 116: second filter guide

120: outer frame 122: first gasket guide

124: second gasket guide 125: second connecting piece

126: gasket fixing 130: rivet

Claims (8)

In the filter frame 10 is coupled to each other frame members 100a, 100b, 100c, 100d for supporting each side end of the rectangular filter 20 having a predetermined thickness, Each frame member (100a, 100b, 100c, 100d) is A side plate 112 having a predetermined thickness and being in contact with one side of the filter 20, and each bent to have a predetermined length from both side ends of the side plate 112, and being made to contact the front and rear surfaces of the filter 20, respectively. A support frame 110 composed of first and second filter guides 114 and 116; And The first gasket guide is bent from the end of the first filter guide 114 to have a length longer than the first filter guide 114 and the inner side is in contact with the outer surface of the first filter guide 114 And a second gasket guide 124 bent in parallel with the side plate 112 at an end of the first gasket guide 122 and formed around the front side of the support frame 110. Outer frame 120; Filter frame comprising a. The method of claim 1, The filter frame, characterized in that the filter 20 is a medium filter. The method of claim 1, The support frame 110 and the outer frame 120 is a filter frame, characterized in that the galvanized steel sheet. The method of claim 1, The first filter guide (114) and the first gasket guide (122) is a filter frame, characterized in that the structure in contact with each other by pressing the press. The method of claim 1, The outer frame 120 is a filter frame, characterized in that the gasket fixing piece 126 is further provided bent inward from the end of the second gasket guide (124). The method of claim 5, The gasket fixing piece 126 is an acute angle with the second gasket guide 124, characterized in that the filter frame. The method according to any one of claims 1 to 6, Each of the frame members 100a, 100b, 100c, and 100d may be vertically bent inwardly at one end or the other end of the side plate 112 or the second gasket guide 124 to be coupled to each other. 112, 125 is further provided with a filter frame. The method of claim 7, wherein Each frame member (100a, 100b, 100c, 100d) is a filter frame, characterized in that the point welded, riveted or bolted to each other.

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