JP6456707B2 - Replacement filter for air purifier - Google Patents

Description

  The present invention relates to a replacement filter used for replacing a filter built in an air purifier when it has reached the end of its life due to clogging due to dust or generation of mold.

  The air cleaner has a built-in filter for removing dust and the like. This filter includes a filter material 1 that is a filter material and a filter frame 2 that surrounds the filter material 1, and has a substantially rectangular parallelepiped shape (FIG. 1). If the air purifier is continuously used, dust is trapped in the filter material 1 and finally clogged with dust, resulting in a decrease in filter performance. Moreover, when used for many years, mold | fungi generate | occur | produce in the filter material 1, and an odor will be produced or a user will be allergic. In particular, in the case of an air cleaner with a built-in humidifier, generation of mold is remarkable.

  For this reason, it is necessary to replace the filter once every few years. This replacement filter is provided by each company, and each company has dimensions that are compatible with its own air purifier. There is no standard for this dimension, it is the size of each company, and only genuine products can be used. For this reason, when a general consumer purchases a replacement filter at a store or the like, a genuine product must be searched for, which is inconvenient for the general consumer. In addition, since there are many types of air purifiers, it is uneconomical for dealers to stock a large number of genuine products. Also, since there is no stock of genuine products at dealers, there is the inconvenience that they must be ordered separately.

  In order to eliminate such inconvenience and inefficiency, the present inventor tried to create a replacement filter suitable for each company's air purifier. As a result, the present invention has been achieved by giving a device that the soft foam is provided in a specific shape and in a specific location. In addition, in order to prevent an air leak between the filter material 1 and the filter frame 2, it is known that a foam is used for sealing (Patent Document 1), but the above inconvenience and inefficiency are eliminated. Therefore, it is not known to use a foam.

JP 2004-16999 A (paragraph 0014)

  An object of the present invention is to provide a replacement filter suitable for air purifiers of various companies having different filter dimensions.

In order to solve the above problems, the present invention has been devised as follows. That is, the present invention is a rectangular parallelepiped filter composed of a filter material and a filter frame surrounding the filter material, and is a replacement filter that can be fitted into an air cleaner having a different size of the frame into which the filter is fitted. Soft foam is affixed to each outer surface of the filter frame , and the thickness of the soft foam gradually decreases from the air inflow side to the air outflow side, and the four corners of the filter frame This invention relates to a replacement filter used in an air cleaner, characterized in that the four corners of the flexible foam are right-angled.

  The filter for replacement according to the present invention includes a filter material 1, a filter frame 2 surrounding the filter material 1, and a soft foam 3 attached to the outer surface of the filter frame 2. FIG. 2 is a front view of a replacement filter according to an example of the present invention, as viewed from the air inflow side.

  As the material of the filter material 1, it is preferable to use a high-performance filter material. In the replacement filter according to the present invention, the size of the filter material 1 is small so as to be compatible with air cleaners of various companies. Since the pressure loss increases by the small size, it is preferable to use a high performance filter material rather than a high pressure loss filter material such as a HEPA filter material or a quasi-HEPA filter material. Here, the HEPA filter material refers to a material that captures 99.97% or more of 0.3 μm dust, and the quasi-HEPA filter material refers to a material that captures about 95% of 0.3 μm dust. The filter material refers to a material that captures about 90% of 0.3 μm dust. The filter material 1 is preferably folded in a pleat shape. This is because the dust capturing surface becomes wider and the filter has a longer life.

  The filter constituted by the filter material 1 and the filter frame 2 has a substantially rectangular parallelepiped shape as shown in FIG. And the soft foam 3 (3a, 3b, 3c, and 3d are collectively set to 3) is affixed on the outer surface of the filter frame 2. FIG. The soft foam 3 is affixed to each outer surface of the four sides of the filter frame 2. The soft foam 3 has a shape in which the thickness t gradually decreases from the air inflow side to the air outflow side of the filter. Here, the thickness t of the soft foam 3 is a portion exposed to the air inflow side of the filter.

  3 is a left side view of the replacement filter shown in FIG. The soft foam 3a is affixed to the upper side of the filter frame 2, the soft foam 3b is affixed to the left side of the filter frame 2, and the soft foam 3c is affixed to the lower side of the filter frame 2. Is. In FIG. 3, the soft foams 3a and 3c appear in a state where their thickness t gradually decreases from the air inflow side to the air outflow side of the filter. Similarly, the soft foam 3c attached to the left side of the filter frame 2 and the soft foam 3d (not shown) attached to the right side of the filter frame 2 are also directed from the air inflow side to the air outflow side of the filter. Thus, the thickness t gradually decreases. As shown in FIG. 3, the degree of gradual decrease is generally 40 to 50 degrees, and particularly preferably 45 degrees.

  The four corners of the soft foam 3 corresponding to the four corners of the filter frame 2 are substantially perpendicular. If the four corners of the soft foam 3 are not formed at right angles but are cut off with a round or the like, air leakage may occur from this portion, which is not preferable.

  As the flexible foam 3, it is preferable to employ a polyurethane product, and it is particularly preferable to employ a flexible polyurethane having open cells. This is because the soft foam 3 is highly stretchable, and in particular, a soft foam having open cells is more stretchable. In the case of a soft foam having open cells, air leakage may occur from the location of the soft foam 3. In this case, it is preferable to attach an air-impermeable sheet to the gradually decreasing surface 3g of the soft foam 3. As the non-breathable sheet, paper, a synthetic resin film, a low-breathing nonwoven fabric, or the like is used.

  The replacement filter according to the present invention is used in an air cleaner in a living room. It can also be used for an air cleaner with a ventilation function, an air cleaner mounted on an automobile, and the like.

  In order to fit the replacement filter according to the present invention into the air purifier of each company, the air outflow side of the replacement filter is connected to the main body side of the air purifier in the frame 4 installed at a predetermined location of the air purifier. Just push it in. Thereby, the thickness t of the soft foam 3 is compressed and fitted by the frame 4. Due to the compression of the thickness t, air leakage from the soft foam 3 is reduced. In addition, the four corners of the soft foam 3 have a higher degree of compression and less air leakage from the four corners.

  In the replacement filter according to the present invention, a soft foam is attached to the outer surface of the filter frame in a specific shape and manner. This soft foam is highly stretchable and highly compressible. Therefore, even if it is an air cleaner of each company and the magnitude | size of the frame which fits a filter differs, the filter for replacement | exchange which concerns on this invention can be easily fitted in an airtight state easily. Therefore, it is convenient for the consumer without having to search for a genuine product. In addition, it is economical for the dealer because the product lineup can be reduced.

Example 1
A filter was prepared in which a high-performance filter material folded in a pleat shape was surrounded by a filter frame having a height of 230 mm, a width of 340 mm, and a depth of 45 mm. Then, on the outer surface of the filter frame, a polyurethane foam (“Mortoprene SC” manufactured by INOAC) having an open cell with a thickness t of 40 mm and an inclination angle of about 45 degrees and gradually decreasing the thickness t is pasted, A replacement filter was obtained. This replacement filter can be fitted into the following various air purifiers and can be used as a replacement filter for these air purifiers.
-Sharp Air Cleaner (FU-A80, FU-E80, KI-EX55, KI-DX70, KI-BX70, KC-B70, KI-DX85, KI-BX85)
-Panasonic air purifiers (F-PXK55, F-VXH50, F-VXH50B2, F-PXJ55, F-PXH55, F-VXG50, F-VX50E8, F-VXGB50, F-VX40H2, F-VXK55, F -VC55XK, F-VXJ50, F-VC50XJ, F-VXK40, F-VX40H3, F-VE40XJ)
-Daikin Air Purifier (MCK55RY, MCK40R, ACK55N-P, TCK55P-W, ACK55N-W, ACK55P-W, MCK40N-W, MCK40P-W, MCK55N-P, MCK-55P)

Example 2
A replacement filter was obtained in the same manner as in Example 1 except that a filter frame having a height of 225 mm, a width of 430 mm, and a depth of 35 mm was used. This replacement filter can be fitted into the following various air purifiers and can be used as a replacement filter for these air purifiers.
・ Sharp air cleaners (KI-EX100, KI-EX75, KC-D70, FU-D51)
・ Panasonic Air Purifier (F-VXK90, F-VXK70, F-VC70XK, F-VXJ90, F-VXJ70, F-VC70XJ)

Example 3
A replacement filter was obtained in the same manner as in Example 1 except that a filter frame having a height of 210 mm, a width of 360 mm, and a depth of 35 mm was used. This replacement filter can be fitted into the following various air purifiers and can be used as a replacement filter for these air purifiers.
-Sharp air purifiers (FU-D30, FU-E30, KC-D40, KC-E40, KC-D50, KC-E50, KI-DX50, KI-BX-50, KC-B50)
-Panasonic air purifiers (F-VXJ35, F-VXH35, F-VXH35B2, F-VXG35, F-PXH35, F-PDH35, F-PXG35, F-PDG35, F-VXGB35, F-VXF35, F -PXF35, F-PDF35, F-PD35Y1)
・ Daikin Air Cleaner (MCK70P, MCZ70P, ACZ70P, ACK70M)

Example 1
A genuine filter for replacement (F-ZXJP35) manufactured by Panasonic was prepared. A polyurethane foam was applied to the outer surface of the filter frame in the same manner as in Example 1 to obtain a replacement filter. Then, this replacement filter was fitted into an air purifier (FU-D51) manufactured by Sharp Corporation. When the FU-D51 was strongly operated indoors and the capture ratio of 0.3 μm indoor dust was measured with a particle measuring instrument (HHPC-6) manufactured by Rion, the dust collection efficiency was 86%.

Comparative use example 1
A genuine filter for replacement (F-ZXJP35) manufactured by Panasonic Corporation can be used for an air cleaner (F-VXJ35) manufactured by Panasonic Corporation. When F-ZXJP35 was fitted into F-VXJ35 and the dust collection efficiency was measured under the same conditions as in Use Example 1, the dust collection efficiency was 86%.

Comparative use example 2
A genuine filter for replacement that can be used in an air cleaner (FU-D51) manufactured by Sharp Corporation is FZ-A51HF manufactured by Sharp Corporation. When FZ-A51HF was fitted into FU-D51 and the dust collection efficiency was measured under the same conditions as in Use Example 1, the dust collection efficiency was 93%.

  As is clear from the results of Examples 1 to 3, the replacement filters according to Examples 1 to 3 are suitable for air cleaners of various companies. Further, as is clear from the results of Use Example 1, Comparative Use Example 1 and Comparative Use Example 3, the dust collection efficiency of indoor dust was comparable to that of genuine products.

It is a perspective view of the filter comprised with the filter material and the filter frame. It is a front view of the filter for exchange concerning an example of the present invention. FIG. 3 is a left side view of the replacement filter shown in FIG. 2. It is a typical front view when the filter for replacement | exchange shown in FIG. 2 is inserted in the predetermined location of the air cleaner.

DESCRIPTION OF SYMBOLS 1 Filter material 2 Filter frame 3 Soft foam 3a Soft foam 3b stuck on the upper side of the filter frame 3b Soft foam 3c stuck on the left side of the filter frame 3d Soft foam 3d stuck on the lower side of the filter frame 3d Soft foam affixed to the right side 4 A frame for fitting a filter installed in the air purifier

Claims (5)

A rectangular parallelepiped filter composed of a filter material and a filter frame surrounding the filter material,
It is a replacement filter that can be fitted into an air purifier with a different size of the frame into which the filter is fitted ,
A soft foam is affixed to each outer surface of the filter frame, and the thickness of the soft foam gradually decreases from the air inflow side to the air outflow side, and corresponds to the four corners of the filter frame. A filter for replacement used in an air cleaner, characterized in that the four corners of the soft foam are right-angled.   The replacement filter used for an air purifier according to claim 1, wherein the thickness of the soft foam is gradually decreased by inclining at an angle of 40 to 50 degrees.   The replacement filter used for an air cleaner according to claim 1, wherein the soft foam is made of polyurethane.   The replacement filter used for an air cleaner according to claim 1, wherein a non-breathable sheet is attached to the gradually decreasing surface of the soft foam.   The exchange filter used for the air cleaner according to claim 1, wherein the filter material is folded in a pleat shape.

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