JP2012045443A - Filter device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a filter device which can be installed at a plurality of use places (tenants), the filter device determining the degree of dirtiness which corresponds to each usage place, by using one kind of filter member.SOLUTION: The filter device 10 includes: a filter member 12 which is formed by laminating sheet-like filter media such as filter paper and non-woven fabric and alternately folding the media to form many pleat parts so as to increase a surface area; and a wooden frame 11 which holds the filter member. Equivalently divided areas are formed in the wooden frame so that the filter device may be divided into four parts, and the filter member, which is common to the areas, is accommodated in the frame. The filter member 12 is provided with patterns 13-16 which become determination patterns which conform to places, at which air conditioners are installed, or dust to be filtrated. Then, the degree of dirtiness is determined on the basis of the disappearance of the patterns 13-16 which are set to the depth or kinds of colors for each place or usage.

Description

  The present invention relates to a filter device disposed on an air suction side or an exhaust side of an air conditioner that adjusts temperature, humidity, air cleanliness, etc. in an indoor environment, and can be used in particular in offices, stores, restaurants, etc. The present invention relates to a filter device.

  2. Description of the Related Art In a filter device that removes dust and dirt in the air, it is common to replace the degree of contamination of a filter member with reference to visual inspection or operation time. However, there are filter members that can be used continuously even if the operation time is long, and the filter members can be continuously used. On the other hand, the filter member is very dirty even though the operation time is short and may need to be replaced. Therefore, Patent Document 1 discloses a dust collector that can know the replacement time of the filter member in an objective manner.

  FIG. 7 shows a conventional dust collecting apparatus 100 that removes dust discharged from the pachinko ball polishing apparatus. The dust collector 100 includes a dust collection box 104 having an intake port 106 and an exhaust port 107, a filter member 101 accommodated in the box, and a hinge to the dust collection box 104 to seal the dust collection box 104. And a sealed door 105 attached thereto. The dust collection box 104 includes a support rail 110 on which the filter member 101 can be detachably installed, and a viewing window 111 that allows the suction side filter 102 of the filter member 101 housed in the dust collection box to be visible. Is provided. The dust collection box 104 can partition the inside of the dust collection box into an intake chamber 108 and an exhaust chamber 109 by inserting the filter member 101 into the dust collection box 104 along the support rail 110. The intake chamber 108 communicates with the intake port 106, the exhaust chamber 109 communicates with the exhaust port 107, and the exhaust port 107 is connected to an air suction device.

  On the intake side of the filter member 101, a plurality of strip-shaped determination patterns 103 are arranged obliquely. This determination pattern 103 is for determining the degree of contamination of the suction side filter 102. The determination pattern 103 is colored in the same or approximate color as the dirt in the replacement time because the suction side filter 102 is more dirty and the filter efficiency is lowered when the suction pattern is used further.

  As described above, the dust collector 100 has an objective determination criterion for notifying the filter member itself of the replacement time, and can use this function to know the appropriate replacement time. . Dust discharged from the pachinko ball polishing apparatus adheres to the surface of the filter device on the surface of the suction side filter 102, thereby removing the dust from the discharged air. The air introduction side surface of the filter device becomes dirty due to dust adhesion, and the degree of contamination increases as the usage time becomes longer. As the dirt increases, the contrast between the determination pattern portion and the other portions decreases. With this change in contrast, the degree of contamination of the filter device can be known based on objective criteria.

  In addition, Patent Document 2 relates to a sheet base material used in a cleaning tool called a “wiper” for wiping the floor surface, in which a dust base is supported on the sheet base material partially and in a pattern. Accordingly, a device in which a portion to which dust is more easily attached than other portions is formed is disclosed. This sheet base material is configured such that when dust adheres to a predetermined part by cleaning, a pattern such as a letter or a figure emerges. By observing the degree of dust adhesion, dirt on the site to be cleaned can be obtained. It is possible to determine the degree of falling and the replacement time of the sheet base material.

JP 2002-346197 A JP 2007-252649 A

  In Patent Document 1 described above, dust that is discharged from the pachinko ball polishing apparatus is targeted. Therefore, the determination pattern has the same or approximate color as the dirt in the state of filter replacement. The color of the judgment pattern varies slightly depending on the background color of the filter member and the type of dust adhering to it, but as a rule of thumb, it is dark gray.

  However, an air conditioner used in an office, a store, a restaurant, or the like has a different type of dust depending on a place (for example, a tenant). For example, it is cotton-like dust at the office, oil stains at restaurants, cotton-like dust at stores such as pachinko shops, and cigarettes, etc. at the factory, and working oil, paint powder, dirt, and dust at the factory. Since it is costly to use a corresponding filter member for such dust, it is desirable to use one type of filter member that can be used in common. However, in the case of using one type of filter member, it is difficult to visually determine the degree of contamination with a single determination pattern formed on the filter member, and it continues to be used without replacement even though the replacement time has passed. In some cases, the air volume of the air conditioner may decrease due to clogging of the filter member, and the cooling performance of the air conditioner may decrease.

  Accordingly, in the present invention, in a filter device installed in a plurality of use places (tenants), it is possible to provide a filter device that can determine the degree of contamination corresponding to each use place using one type of filter member. Objective.

  In order to achieve the above object, the filter device according to the present invention is a filter device arranged on the air introduction side of an air conditioner, and a boundary line that equally divides the air introduction side surface and the installation of the air conditioner And a plurality of display means for displaying the degree of contamination by changing the pictogram corresponding to the place, and the display means are respectively arranged in a plurality of areas separated by boundary lines. With such a configuration, it is not only easy to determine the degree of contamination in a wide range by drawing a plurality of display means, but also has an advantage that a common filter device can handle a plurality of tenants.

  Further, in the filter device according to the present invention, the display means is a pictograph that displays the installation location with a character, a figure, or a pattern, and the pictograph formed on the air introduction side surface disappears due to a change in color density or a change in color. It is characterized by indicating the degree of contamination.

  The filter device according to the present invention further includes a detection unit that detects the degree of adsorption of the chemical substance corresponding to the installation location of the air conditioner, and the detection unit is a chemical that cannot be displayed by the display unit corresponding to the installation location. A filter device characterized by reacting to a substance and indicating a degree of adsorption of a chemical substance by a change in color density or a change in color.

  In the filter device according to the present invention, the boundary line that equally divides the air introduction side surface is a boundary line radially divided or a boundary line divided into a lattice.

  In the filter device according to the present invention, a removable filter layer covering a part of the air introduction side surface is arranged at the intersection of the boundary lines in order to maintain the initial state of the divided area. . By having such a filter layer, it is possible to prevent the comparative pattern formed immediately below the filter layer from being soiled and to prevent the color density or color type from being significantly different due to the soiling.

  Furthermore, in the filter device according to the present invention, the boundary line for equally dividing the air introduction side surface is formed by a line or a frame having a predetermined width.

  By using the filter device according to the present invention, when one type of filter member is used, there is an effect that the stain can be determined by the disappearance of the pattern in which the color density or color type is set for each place or application. is there. Another effect is that the degree of contamination of the filter medium can be determined by the dirt comparison means or detection means formed under the detachable filter layer disposed at the center of the filter member.

1 is a perspective view of a filter device according to a first embodiment of the present invention. It is a front view of the filter apparatus shown in FIG. It is a front view of the filter apparatus which concerns on the 2nd Embodiment of this invention. It is a front view of the filter apparatus which concerns on the 3rd Embodiment of this invention. It is the enlarged view to which the center part of the filter apparatus which concerns on other embodiment of this invention was expanded. It is a front view of filter devices, such as a lattice form, radial form, and round shape, of the present invention. It is a perspective view of the conventional dust collector.

  Hereinafter, the best mode for carrying out the present invention (hereinafter referred to as an embodiment) will be described with reference to the drawings.

  FIG. 1 shows a first embodiment of a filter device 10 arranged on the air suction side or the discharge side of an air conditioner that adjusts temperature, humidity, air cleanliness, etc. in an indoor environment. The filter device 10 includes a filter member 12 in which a plurality of pleats are formed by laminating sheet-like filter media such as filter paper and nonwoven fabric, and alternately bending to increase the surface area, and a wooden frame 11 holding the filter member. Have. The wooden frame 11 forms a region that is equally divided so as to divide the filter device into four, and a common filter member is stored in each region.

  In addition, the filter member 12 is provided with patterns 13 to 16 serving as determination patterns according to the installation location (use location) of the air conditioner and the dust to be filtered (use application). It is possible to determine the degree of contamination by the disappearance of the patterns 13 to 16 in which the type of the pattern is set. Air flows from the right to the left with respect to the filter device 10 of FIG. 1 (wind flow), so that the air flows evenly on the surfaces of the patterns 13 to 16 that become the determination patterns, and passes through the filter medium to the opposite side of the filter member To be filtered and cleaned. In the present embodiment, the common filter member 12 is accommodated in the region divided into four, but the present invention is not limited to this, and filters having different characteristics may be accommodated.

  FIG. 2 is a front view of the filter device 10 shown in FIG. In the first embodiment, a triangular pattern 13, a star pattern 14, a square pattern 15 and a spiral pattern 16 having a predetermined line width are provided. In particular, the triangular pattern 13 is for oil and dust that are often used in restaurants and the like, and the star-shaped pattern 14 is for cigarette dust and dust that is often discharged in pachinko shops that can be smoked. The square pattern 15 is mainly for dust in offices and the like, and the spiral pattern 16 is for factory oil, paint powder, dirt, dust, and dust. Even if the filter apparatus 10 which concerns on 1st Embodiment is one type of filter member used in common, it can respond to a restaurant, a pachinko parlor, an office, a factory, etc., and each installation place It is possible to determine the degree of contamination according to the condition, and it is also possible to determine the type of contamination.

  Next, the second embodiment, which is an embodiment of the first improved type, will be outlined. The second embodiment shown in FIG. 3 is equally divided by the boundary line 23 instead of the division by the wooden frame 11. In addition, the patterns 13 to 16 of the first embodiment are made into specific figures 18 to 21, and when determining the degree of dirt in each region at the center, a pattern indicating a dirt level that becomes the comparison means 17 is provided. A removable filter layer 31 is provided so as to cover the comparison means 17. Note that, in the second embodiment, the degree of interest in dirt on the filter device is increased by arranging patterns in the order of frequency of use as the installation location of the filter device 20.

  In the second embodiment, for example, the office pattern 18 is drawn in gray, which is a dust color, and the pachinko (store) pattern 19, which has a lot of tobacco smoking, is a dust color and a cigarette color. The restaurant pattern 21 that is drawn in brown considering oil and the oil stains are conspicuous due to volatilization of the cooking oil is drawn in ocher color, and the factory pattern 22 is marked with stains such as machine oil, coating powder, dirt, dust, and dust. Is drawn in black. In addition, since the darkness and the color type of any of the patterns 18 to 22 are matched to the color tone at the time of replacement of the filter device, consideration is given to hiding the pattern at the time of replacement.

  However, since it is difficult to make a determination when the pattern is not completely hidden, the comparison unit 17 covered with the filter layer 31 is provided at the center of the filter member 12 in the second embodiment. The filter layer 31 is provided with a turning handle 32. When the filter layer 31 is turned with the turning handle 32, the comparison means 17 shown in the enlarged view of FIG. 3 appears. Since the filter layer 31 absorbs most of the dirt, the color density and color type of the comparison means 17 covered with the filter layer 31 do not change so much, and the three-stage reference colors 18a to 22a indicating the dirt condition It becomes possible to judge the degree of dirt. In the present embodiment, the comparison means 17 is covered with the filter layer in order to reduce the difference between the color density and the color type due to the actual stain with respect to the brand new color.

  Next, an embodiment in which the boundary line is changed from a lattice shape to a radial shape will be described. FIG. 4 is a front view of the filter device according to the third embodiment, which is divided into four equal parts vertically and horizontally by providing boundary lines radially. In the third embodiment, an example of a rectangular wooden frame 11 is shown. However, in the case of a filter device attached to a circular pipe, it is difficult to divide the lattice into equal parts. The division is essential. FIG. 6 shows the lattice filter device of FIG. 6 (A), the radial filter device of FIG. 6 (B), and the round filter device of FIG. 6 (C). As described above, by dividing the filter region equally and arranging the determination patterns in each of them, it is possible to determine various stains using a common filter device.

  Next, a filter device that can monitor chemical substances contained in the air introduced to the air introduction side in addition to removing dirt as the filter device will be described. FIG. 5 is an enlarged view of the central portion of the filter device 40 according to another embodiment. In the central part of the filter device described above, there is a comparison means for determining the degree of contamination. Instead of this comparison means, the change in color density or color in response to the chemical substance in the sorting parts 26-28. The detection means 25 which detects the adsorption degree of a chemical substance by the change of is provided.

  The detection means 25 is provided with a reagent that develops color by reacting with formaldehyde, toluene, and xylene as chemical substances. For example, the formaldehyde reagent detects formaldehyde by directly or indirectly detecting the chemical reaction between aldehydes and amines and the product of those reactions using the oxidizing power of aldehydes. There is. (For details, see JP-A-2006-275817.) However, since many reagents are relatively expensive, the filter device having the detecting means 25 is a chemical substance that volatilizes from building materials immediately after tenant renovation. It is desirable to use it in the initial stage of detecting the presence or absence of. In the present embodiment, the above-described three kinds of chemical substances are detected. However, the present invention is not limited to this. For example, a reagent that develops color in response to ethylbenzene, styrene, or the like may be provided.

  As described above, by using the filter device according to the present invention, when one type of filter member is used, the pattern in which the color intensity or color type is set for each place or application disappears. It becomes possible to judge the degree of dirt. In addition, it is possible to determine the degree of environmental contamination by means of comparing the degree of contamination or chemical substance detecting means formed under the detachable filter layer disposed at the center of the filter member. In the present embodiment, wood is used for the frame of the filter device. However, the present invention is not limited to this. For example, an aluminum frame, a frame that can combine a plurality of frames, and the like are used. Also good.

  10, 20, 30, 40 Filter device, 11 Wooden frame, 12, 101 Filter member, 13, 14, 15, 16, 18, 19, 21, 22 Pattern, 17 Comparison means, 18a, 19a, 21a, 22a Reference color , 23 Boundary line, 25 Detection means, 26, 27, 28 Sorting part, 31 Filter layer, 32 Turning handle, 100 Dust collector, 102 Suction side filter, 103 Judgment pattern, 104 Dust collection box, 105 Sealed door, 106 Intake port, 107 Exhaust port, 108 Intake chamber, 109 Exhaust chamber, 110 Support rail, 111 Peep window.

Claims (6)

In the filter device arranged on the air introduction side of the air conditioner,
A boundary line for equally dividing the air introduction side surface;
A plurality of display means for displaying the degree of dirt by the change of pictograms corresponding to the installation location of the air conditioner;
Have
A filter device, characterized in that display means are arranged in a plurality of regions delimited by boundary lines. The filter device according to claim 1,
The display means is a pictograph that displays the installation location with letters, figures or patterns, and indicates the degree of contamination by the disappearance of the pictograph formed on the air introduction side surface due to the change in color density or color change. A filter device. The filter device according to claim 1,
Having detection means for detecting the degree of adsorption of chemical substances corresponding to the installation location of the air conditioner;
The filter device characterized in that the detection means reacts with a chemical substance that cannot be displayed by the display means corresponding to the installation location, and indicates the adsorption degree of the chemical substance by a change in color density or a change in color. The filter device according to claim 1,
The filter device characterized in that the boundary line that equally divides the air introduction side surface is a radially divided boundary line or a lattice-divided boundary line. The filter device according to claim 4, wherein
A filter device comprising a removable filter layer that covers a part of the air introduction side surface at an intersection of boundary lines in order to maintain an initial state of a divided area. The filter device according to claim 4, wherein
A filter device characterized in that the boundary line that equally divides the air introduction side surface is formed by a line or a frame having a predetermined width.

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