JP7509831B2 - Filter structure, filter structure for air purifier, and ventilation structure for air purifier - Google Patents

Description

This invention relates to a filter structure, a filter structure for an air purifier, and a ventilation structure for an air purifier, and in particular to a filter structure for attaching to an object to filter the gas passing through, a filter structure for an air purifier, and a ventilation structure for an air purifier to which the filter structure is attached.

Conventionally, it has been proposed to attach a cover to machines with an air intake surface, such as coolers, air conditioners, dehumidifiers, or air purifiers, to prevent dirt from adhering to the air intake surface or other exterior parts of the machine.

For example, Japanese Patent Application Laid-Open Publication No. 11-83069 discloses a technique for attaching a cover body with a string or a hook-and-loop fastener at the end of the string, or a cover body with rubber, to a machine in a removable manner. It also discloses providing a folded-in portion on the cover body to accommodate the air intake surfaces of various manufacturers and models of different sizes.

Japanese Patent Application Laid-Open No. 11-83069

However, since the size of the air intake surface of an air conditioner is generally larger than that of a floor-standing dehumidifier or air purifier, in the above-mentioned conventional technology, when attaching a cover to a dehumidifier or air purifier, it may be necessary to provide a significant fold-in area, which may reduce the resistance to air intake.

Furthermore, Patent Document 1 does not specifically consider the ventilation characteristics required of the cover between the air conditioner and the air purifier.

This invention has been made to solve the above problems, and aims to provide a filter structure, a filter structure for an air purifier, and a ventilation structure for an air purifier that can be attached to at least both an air conditioner and an air purifier and has ventilation characteristics that are favorable for both of these devices.

In order to achieve the above object, a filter structure in a first aspect of the present invention is a filter structure for filtering gas passing through by attaching a part of it, or the whole of it, to an object, the filter structure comprising: a flexible filter body in a sheet shape having a rectangular shape in a plan view; and an adhesive portion formed by applying an adhesive to one side of the filter body, the adhesive portion having a first belt-like portion extending along an edge portion on one side of a pair of long sides of the rectangular shape, and a second belt-like portion extending along an edge portion on the other side of the pair of long sides of the rectangular shape, the air permeability of the filter body is set to 1500 to 5000 cc/ ^cm2 /sec, and the basis weight of the filter body is 30 to 50 g/m ² , and the object to which the filter structure is attached includes at least the air intake of an air conditioner and an air purifier, and further, the adhesive portion includes an intersecting band portion (31, 35, 36, 83, 84, 85, 86, 93, 94) that intersects with the first band portion and the second band portion and that extends from the first band portion to the second band portion and is formed at a predetermined interval in the long side direction, and further, the adhesive portion includes a mark portion (32) that is provided so as to overlap at least a part of the intersecting band portion and that is coated with adhesive in a mark shape indicating the time to replace the filter structure, and a contour portion (33) that is provided around the mark portion and is not coated with adhesive, and further, the adhesive portion has a rectangular shape. The bag comprises a third band-shaped portion (23) formed so as to extend along the imaginary line on the first band-shaped portion side of the imaginary line which is formed by connecting the centers of a pair of short sides of the bag and which can be folded for use, a fourth band-shaped portion (24) formed so as to extend along the imaginary line on the second band-shaped portion side, a fifth band-shaped portion (25) formed so as to be spaced apart on the first band-shaped portion side from the third band-shaped portion, and a sixth band-shaped portion (26) formed so as to be spaced apart on the second band-shaped portion side from the fourth band-shaped portion, the third band-shaped portion being wider than the first band-shaped portion, and the fourth band-shaped portion being wider than the second band-shaped portion, and the sign portion being positioned within an area outside the area near the center defined by the fifth band-shaped portion and the sixth band-shaped portion .

With this configuration, the filter can be easily attached to at least both the air conditioner and the air purifier, and the intrusion of dust can be more reliably suppressed at the long edge, while not excessively hindering the intake of air by both of these devices. Also, the cross band portion adheres to the target portion over the entire area of the filter structure. Furthermore, with use, dust adheres to the outline portion around the label portion where no adhesive is applied. Furthermore, adhesive force can be generated near the center. Furthermore, the range in which adhesive force is generated near the center can be expanded.

A filter structure in a second aspect of the present invention is the same as that in the first aspect of the present invention, except that the intersecting band portion intersects with the first band portion and the second band portion at an angle of at least one of 45° and 135°.

This configuration makes it possible to better prevent air from entering around the short edge when the filter structure is attached to an object.

A filter structure according to a third aspect of the present invention is the same as that according to the first aspect of the present invention, in which the intersecting bands are orthogonal to the first and second bands.

When configured in this way, a filter structure can be created that is surrounded on all four sides by adhesive sections by aligning and cutting the lattice parts of the intersecting bands.

A filter structure in a fourth aspect of the present invention is a filter structure (1) for filtering gas passing therethrough by attaching a part of it, or the whole of it, to an object, the filter structure comprising: a flexible filter body (10) in the form of a sheet having a rectangular shape in a plan view; and an adhesive portion (20) formed by applying an adhesive to one side of the filter body, the adhesive portion having a first belt-like portion (21) extending along an edge portion on one side of a pair of long sides of the rectangular shape, and a second belt-like portion (22) extending along an edge portion on the other side of the pair of long sides of the rectangular shape, the air permeability of the filter body being set to 1500 to 5000 cc/cm ² /sec, and the basis weight of the filter body being 30 to 50 g/m ² , and the object to which the filter structure is attached includes at least an air intake of an air conditioner and an air purifier, and further, the adhesive portion includes an intersecting band portion (31, 35, 36, 83, 84, 85, 86, 93, 94) that intersects with the first band portion and the second band portion and that extends from the first band portion to the second band portion and is formed at a predetermined interval in the long side direction, and the intersecting band portion is perpendicular to the first band portion and the second band portion, and further, the adhesive portion includes a mark portion in which an adhesive is applied in a mark shape indicating the time to replace the filter structure, and a mark portion in which the adhesive is applied is provided around the mark portion. and a contour portion that is not overlapped with the crossing band portion and the first and second band portions, the marker portion is provided in an area surrounded by the crossing band portion and the first and second band portions and is provided so as not to overlap with the crossing band portion and the first and second band portions, the marker portion is composed of a plurality of marker elements and the area portions are formed so that the plurality of marker elements are scattered in islands, the plurality of marker elements in one area portion are arranged on one line and the plurality of marker elements in another area portion are arranged on another line, the one line and the other line are in a parallel relationship and are arranged offset so as not to intersect even when extended.

With this configuration, it can be easily attached to at least both the air conditioner and the air purifier, and the intrusion of dust can be more reliably suppressed at the long edge, while not excessively hindering the intake of air by both of these devices. In addition, the cross band portion adheres to the target portion over the entire area of the filter structure. Furthermore, by aligning and cutting the lattice portion of the cross band portion, a filter structure surrounded by adhesive portions on all four sides can be formed. Furthermore, with use, dust adheres to the outline portion around the sign portion where the adhesive is not applied. Furthermore, the positional relationship of the sign element can be shifted for each area.

A filter structure in a fifth aspect of the present invention is one in which, in the configuration of the invention in the fourth aspect , the marking element is sized to fit within an area formed by a square or rectangle having one side of 6 to 15 mm and the other side of 6 to 15 mm.

This configuration prevents the sign element from interfering with the gaps in the grille of the rear air intake of the air purifier, and increases the visibility of the sign element as use progresses.

The filter structure in a sixth aspect of the present invention is the same as the configuration of the invention in the fifth aspect, in which the plurality of marker elements are arranged such that the adjacent marker elements are shifted relative to each other either up, down, left, or right.

This configuration ensures that dust adheres more reliably to the periphery of the sign elements of the sign section.

A filter structure in a seventh aspect of the present invention has the configuration of any one of the first to sixth aspects of the present invention, wherein the filter body is subjected to at least one of an antibacterial treatment and an antiviral treatment.

This configuration makes it possible to suppress the occurrence or proliferation of bacteria or viruses.

A filter structure in an eighth aspect of the present invention is a filter structure according to any one of the first to seventh aspects, wherein the size of the filter body is set to 75 to 85 cm for the long side and 33 to 43 cm for the short side.

This configuration fits well with the size of commonly used air conditioner intakes.

A filter structure for an air purifier in a ninth aspect of the present invention is a filter structure for an air purifier in which the long side of the filter body is cut to match the vertical height of a rear air intake of the air purifier in the filter structure in any of the fourth to sixth and eighth aspects.

When configured in this way, a filter structure for an air purifier is obtained in which the length of the long side of the filter body after cutting is the height, and the length of the short side of the filter body is the width.

A filter structure for an air purifier in a tenth aspect of the present invention is the filter structure for an air purifier in any one of the fourth to sixth and eighth aspects, wherein the long side of the filter body is cut to fit the lateral width of the rear air intake of the air purifier.

When configured in this way, a filter structure for an air purifier is obtained in which the length of the short side of the filter body is the height, and the length of the long side of the filter body after cutting is the width.

A ventilation structure for an air purifier in an eleventh aspect of the present invention is a ventilation structure for an air purifier, comprising a rear air intake port provided on a rear surface of the air purifier and set to a size of 33 to 55 cm in height and 19 to 38 cm in width, and a filter structure for an air purifier in any of the fourth to sixth, ninth and tenth aspects attached in alignment with the rear air intake port.

This configuration makes it possible to more reliably prevent dust from entering the periphery of the part that corresponds to the original long side of the filter body, while providing a ventilation structure that does not excessively impede the intake of air by both of these devices.

A ventilation structure for an air purifier in a twelfth aspect of the present invention is a ventilation structure for an air purifier, comprising: a rear air intake port provided on a rear surface of the air purifier, set to a size of 33 to 55 cm in height and 19 to 38 cm in width, with at least a plurality of right-angled rectangular openings aligned vertically and horizontally; and a filter structure for an air purifier in any of the second and fourth to sixth aspects, wherein a long side of a filter body of the filter structure is aligned with and attached to the rear air intake port.

This configuration makes it possible to prevent the air purifier filter structure from continuously blocking the rear air intake opening in the vertical or horizontal direction.

As described above, the filter structure in the first aspect of the present invention can be easily attached to at least both the air conditioner and the air purifier, and can more reliably prevent dust from entering the long side periphery while not excessively hindering the intake of both the devices, so that at least it can suppress the operation of both the devices. In addition, since the cross band portion adheres to the object over the entire area of the filter structure, the adhesive force can be further reinforced over the entire area of the filter structure. Furthermore, as the use progresses, the indicator portion is lifted by dust, and it is possible to indicate the time to replace the filter structure. Furthermore, since the adhesive force can be generated near the center, the filter body can be more reliably fixed to the object when it is folded near the center. Furthermore, since the range in which the adhesive force is generated near the center can be expanded, the filter body can be more reliably fixed to the object when it is folded near the center.

The filter structure in the second aspect of the present invention, in addition to the effects of the invention in the first aspect , can better prevent air from entering from around the short side edges, thereby preventing dust from entering the object.

In the filter structure according to the third aspect of the present invention, in addition to the effects of the invention according to the first aspect , a filter structure can be formed which is surrounded on all four sides by adhesive portions by aligning and cutting the lattice portions of the intersecting bands, thereby making it possible to substantially block the intrusion of air from around the short side edges.

The filter structure in the fourth aspect of the present invention can be easily attached to at least both the air conditioner and the air purifier, and can more reliably suppress the intrusion of dust at the long side edge while not excessively hindering the intake of both the devices, so that at least the operation of both the devices can be suppressed. In addition, since the cross band portion adheres to the target portion over the entire area of the filter structure, the adhesive force can be further reinforced over the entire area of the filter structure. Furthermore, by aligning and cutting the lattice portion of the cross band portion, a filter structure surrounded by adhesive portions on all four sides can be formed, so that the intrusion of air from the short side edge periphery can be almost blocked. Furthermore, as the use progresses, the sign portion floats up due to dust, and it is possible to indicate the time to replace the filter structure. Furthermore, since the positional relationship of the sign elements can be shifted for each area, it is possible to prevent all the sign elements from not floating up properly.

The filter structure in the fifth aspect of the present invention, in addition to the effects of the invention in the fourth aspect, can prevent the indicator element from interfering with the gaps in the lattice of the rear air intake of the air purifier, and the visibility of the indicator element increases as use progresses, so that the indicator element more reliably functions as an indicator showing when it is time to replace the filter structure.

The filter structure in the sixth aspect of the present invention, in addition to the effects of the invention in the fifth aspect, more reliably attracts dust around the sign elements of the sign part, thereby making it possible to prevent the sign elements of the sign part from failing to float up properly.

The filter structure according to the seventh aspect of the present invention has the effect of suppressing the occurrence or proliferation of bacteria or viruses, in addition to the effect of any one of the first to sixth aspects of the present invention, and is therefore advantageous in terms of hygiene.

The filter structure in the eighth aspect of the present invention, in addition to the effects of the invention in any one of the first to seventh aspects, is well suited to the size of the air intake of commonly used air conditioners, and therefore a filter structure with high versatility can be obtained among air conditioners of different manufacturers and models.

In a ninth aspect of the present invention, in addition to the effects of the invention in any of the fourth to sixth and eighth aspects, a filter structure for an air purifier is obtained in which the length of the long side of the filter body after cutting is defined as the height and the length of the short side of the filter body is defined as the width, thereby providing a filter structure in which the first band-like portion and the second band-like portion can prevent air from entering from the horizontal direction.

In a tenth aspect of the present invention, in addition to the effects of the invention in any of the fourth to sixth and eighth aspects, a filter structure for an air purifier is obtained in which the length of the short side of the filter body is defined as the height and the length of the long side of the filter body after cutting is defined as the width, so that the first belt-like portion and the second belt-like portion can prevent air from entering from above and below.

The ventilation structure of the air purifier in an eleventh aspect of the present invention, in addition to the effects of the invention in any of the fourth to sixth , ninth and tenth aspects, can more reliably prevent dust from entering around the periphery of the part corresponding to the original long side of the filter body, while providing a ventilation structure that does not excessively impede the intake of air by the air purifier, thereby preventing interference with the operation of the air purifier.

The ventilation structure of the air purifier in the twelfth aspect of the present invention, in addition to the effects of the invention in the second aspect and any of the fourth to sixth aspects, can prevent the air purifier filter structure from continuously blocking the opening of the rear air intake in the vertical or horizontal direction, thereby suppressing clogging of the rear air intake and causing problems in operating the air purifier.

1 is a plan view showing the external shape of a filter structure according to a first embodiment of the present invention; FIG. 2 is an end view of line II-II shown in FIG. FIG. 3 is an enlarged view of the X1 portion shown in FIG. 2 . 1A to 1C are diagrams showing a mounting process for mounting the filter structure to an air conditioner. 5 is a diagram showing a step following the mounting step shown in FIG. 4 . 5A and 5B are schematic diagrams showing the appearance of the air conditioner after the installation process of the filter structure is completed, in which (a) shows a plan view of the air conditioner and (b) shows a front view of the air conditioner. 1A and 1B are diagrams showing the appearance of an air purifier, in which FIG. 1A shows the appearance shape of the front side of the air purifier, and FIG. 1B shows the appearance shape of the rear side of the air purifier. 11A to 11C are diagrams showing a mounting process for mounting the filter structure to an air purifier. 9 is a diagram showing a step following the mounting step shown in FIG. 8 . FIG. 10 is a schematic diagram showing in more detail the ventilation structure of the air purifier obtained by the mounting steps shown in FIGS. 8 and 9 . FIG. 11 is a plan view showing the external shape of a ventilation structure for an air purifier according to a second embodiment of the present invention, corresponding to FIG. 10 . FIG. 11 is a plan view showing the external shape of a filter structure according to a third embodiment of the present invention, corresponding to FIG. FIG. 11 is a plan view showing the external shape of a filter structure according to a fourth embodiment of the present invention, corresponding to FIG. FIG. 11 is a plan view showing the external shape of a filter structure according to a fifth embodiment of the present invention, corresponding to FIG. FIG. 15 is a bottom view of the filter structure shown in FIG. 14. FIG. 15 is a plan view showing the external shape of a filter structure according to a sixth embodiment of the present invention, corresponding to FIG. 14.

Figure 1 is a plan view showing the external shape of a filter structure according to a first embodiment of the present invention, Figure 2 is an end view of line II-II shown in Figure 1, and Figure 3 is an enlarged view of part X1 shown in Figure 2.

Referring to these figures, the filter structure 1 is intended to be attached, either in whole or in part, to an object such as an air conditioner or air purifier to filter the gas passing through, and comprises a filter body 10, an adhesive portion 20, and a release sheet 40.

The filter body 10 is made of flexible nonwoven fabric or the like, and is formed into a sheet having a substantially rectangular shape in a plan view. The size of the filter body 10 is set such that the length W11 of the long side of the substantially rectangular shape is set to approximately 80 cm, and the length W12 of the short side is set to approximately 38 cm. The filter body 10 is also antiviral-treated by adding an inorganic photocatalytic agent, which is advantageous from the standpoint of hygiene as it can suppress the generation of viruses. The airflow rate of the filter body 10 is set to 1500 to 5000 cc/ ^cm2 /sec.

The adhesive portion 20 is formed by applying an adhesive (such as a urethane-based adhesive) to one side of the filter body 10.

More specifically, the adhesive portion 20 comprises first to sixth band portions 21 to 26, an intersecting band portion 31, a marking portion 32, and a contour portion 33.

The first belt-shaped portion 21 is formed to extend along the edge portion 11 on one side of a pair of long sides of the approximately rectangular shape of the filter body 10. The width W21 of the first belt-shaped portion 21 is set to 1.0 cm.

The second belt-like portion 22 is formed to extend along the other edge portion 12 of the pair of long sides of the substantially rectangular shape of the filter body 10. The width of the second belt-like portion 22 is set to be the same as that of the first belt-like portion 21.

The third belt-shaped portion 23 is formed to extend along the imaginary line L on the first belt-shaped portion 21 side of the imaginary line L that connects the centers of a pair of short sides of the approximately rectangular shape of the filter body 10. The width W22 of the third belt-shaped portion 23 is set to 2.0 cm.

The fourth band portion 24 is formed to extend along the imaginary line L on the second band portion 22 side of the imaginary line L. In addition, the width of the fourth band portion 24 is set to be the same as the width of the third band portion 23.

The fifth band 25 is formed with a width W23 = 1.0 cm, spaced apart from the third band 23 toward the first band 21.

The sixth band portion 26 is spaced from the fourth band portion 24 toward the second band portion 22 and is formed with the same width as the fifth band portion 25.

The intersecting band portion 31 intersects with the second band portion 22 at an angle of θ = 45°, and the band extending from the first band portion 21 to the second band portion 22 is formed at a predetermined interval W31 = 6.0 cm in the long side direction. The width W32 of the intersecting band portion 31 is set to 0.8 cm.

The sign portion 32 is provided so as to overlap at least a portion of the intersecting band portion 31, and is coated with adhesive in the shape of a sign indicating when it is time to replace the filter structure 1, i.e., in the shape of the inverted letters "please replace it."

The outline portion 33 is provided around the marker portion 32 and is the portion to which no adhesive is applied.

The ratio of the area of the adhesive portion 20 to the area of the filter body 10 is approximately 40%.

The release sheet 40 is made of a film made of a transparent synthetic resin such as polyethylene terephthalate (PET). The release sheet 40 has a separation line 41 that extends along the imaginary line L.

The effects of configuring the filter structure 1 in this manner will be described later.

Next, we will explain how to attach the filter structure 1 to an air conditioner.

Figure 4 shows the installation process for attaching the filter structure to the air conditioner, Figure 5 shows the process following the installation process shown in Figure 4, and Figure 6 is a schematic diagram showing the appearance of the air conditioner after the installation process of the filter structure is completed, where (a) shows a plan view of the air conditioner and (b) shows a front view of the air conditioner.

First, referring to Figures 4 and 5, as shown in S11, the filter structure 1 is folded in a mountain fold along the imaginary line L (see Figure 1), and one side 40a of the release sheet 40 is peeled off along the separation line 41 of the release sheet 40 to expose the adhesive portion 20.

Next, as shown in S12, the exposed adhesive portion 20 is placed facing the front air intake 51 of the air conditioner 50, and the filter structure 1 is attached to the front air intake 51 in the direction of the arrow.

Next, as shown in S13, the other side 40b of the release sheet 40 is peeled off, and the filter structure 1 is attached so as to cover the upper air intake 52, and the installation is completed as shown in S14.

Next, referring to Figures 6(a) and 6(b), when installation is complete, the filter structure 1 can be installed so as to cover the front air intake and the top air intake of the air conditioner.

As explained with reference to FIG. 1, the filter body 10 of the filter structure 1 has a substantially rectangular shape with the long side length W11 set to approximately 80 cm and the short side length W12 set to approximately 38 cm, so that it fits well with the size of the air intake of commonly used home air conditioners. This makes it possible to obtain a filter structure 1 that is highly versatile among air conditioners of different manufacturers and models.

In addition, the third belt portion 23 and the fourth belt portion 24 can generate adhesive strength near the center, so that when the filter body is folded near the center for use, it can be more securely fixed to the object.

Furthermore, the fifth belt portion 25 and the sixth belt portion 26 can expand the area in which adhesive force occurs near the center, so that the filter body can be more securely fixed to the object when it is folded near the center for use.

Furthermore, with the filter structure 1 attached to the air conditioner in this manner, as the air conditioner is used, dust will adhere to the areas around the sign 32 where no adhesive is applied, i.e., where the adhesive section 20 is not formed. When this happens, the words "Replace" will appear on the sign 32, informing the user that it is time to replace the filter structure 1.

Next, we will explain how to attach the filter structure 1 to an air purifier.

Figure 7 shows the external appearance of the air purifier, (a) shows the external shape of the front side of the air purifier, (b) shows the external shape of the rear side of the air purifier, Figure 8 shows the installation process for attaching the filter structure to the air purifier, and Figure 9 shows the process following the installation process shown in Figure 8.

First, as shown in (a) and (b) of FIG. 7, the air purifier 60 has a rear surface 61 having a height H61 of 64 cm and a width W61 of 38 cm, and a rear air intake 62 provided on the rear surface 61 and having a height H62 of 45 cm and a width W62 of 38 cm (=W62). The rear air intake 62 is configured with openings of a substantially rectangular shape aligned vertically and horizontally.

Next, referring to Figures 8 and 9, as shown in S21, the long side of the filter body 10 is cut to a size of W15 = 45 cm to prepare the cut filter body 15.

Next, as shown in S22, the release sheet 40 is peeled off from the cut filter body 15 to expose the adhesive portion 20.

Next, as shown in S23, the exposed adhesive portion 20 is placed facing the rear air intake 62, and the cut filter body 15 is attached to the rear air intake 62 in the direction of the arrow, and the attachment is completed as shown in S24, completing the ventilation structure 70 of the air purifier.

Figure 10 is a schematic diagram showing in more detail the ventilation structure of the air purifier obtained by the installation process shown in Figures 8 and 9.

Referring to the figure, as described above, the long side of the filter body 10 can be cut at line C to match the horizontal width of the rear air intake 62 of the air purifier, and the original long side direction of the filter body 10 (i.e., the direction in which the first and second band portions extend) can be aligned with the vertical direction of the rear air intake 62, and the cut filter structure 1 can be attached to the rear air intake 62 to form the ventilation structure 70 of the air purifier as shown in the figure.

When configured in this way, a filter structure for an air purifier is obtained in which the length of the long side of the filter body after cutting is the height, and the length of the short side of the filter body is the width. Therefore, the first belt-like portion and the second belt-like portion result in a filter structure that can prevent air from entering from the horizontal direction.

Furthermore, since the intersecting band portion 31 adheres to the air purifier over the entire area of the filter structure, the adhesive strength can be further reinforced over the entire area of the filter structure.

In addition, the edges 11a and 11b (i.e., the parts corresponding to the first and second bands) of the filter body 10 can more reliably prevent dust from entering, while a ventilation structure is obtained that does not excessively impede the intake of air into the air purifier, thereby preventing interference with the operation of the air purifier.

In addition, the intersecting bands 31 are formed in a diagonal direction that is inclined relative to the vertical and horizontal directions, so that the opening of the rear air intake 62 can be prevented from being continuously blocked in the vertical or horizontal directions by the adhesive portion. This prevents clogging of the rear air intake 62 and disruption to the operation of the air purifier.

Figure 11 is a plan view showing the external shape of the ventilation structure of an air purifier according to a second embodiment of the present invention, and corresponds to Figure 10.

Note that since the second embodiment is basically the same as the first embodiment, the following explanation will focus on the differences.

With reference to the figure, arrow Z indicates the upward direction of the rear air intake 62, and arrow Y indicates the horizontal direction of the rear air intake 62. In this second embodiment, the ventilation structure 70 of the air purifier is configured so that the long side direction of the original filter body 10 (i.e., the direction in which the first belt-like portion and the second belt-like portion extend) is aligned with the vertical direction of the rear air intake 62.

In other words, the filter structure for the air purifier used in the ventilation structure 70 of the air purifier is configured by cutting the long side of the filter body to match the vertical height of the rear air intake of the air purifier.

As a result, the first belt-like portion and the second belt-like portion form a filter structure for an air purifier that can prevent air from entering from the horizontal direction.

Figure 12 is a plan view showing the external shape of a filter structure according to a third embodiment of the present invention, and corresponds to Figure 1.

Note that since the second embodiment is basically the same as the first embodiment, the following explanation will focus on the differences.

Referring to the figure, in this third embodiment, the intersecting band portion 31 in the first embodiment is replaced with an intersecting band portion 35.

The intersecting band portion 35 intersects with the second band portion 22 (first band portion 21) at angles of approximately 45° and approximately 135°. In other words, the intersecting band portion 35 has an X-shaped lattice shape. Therefore, compared to the first embodiment, the adhesive strength can be further reinforced. Furthermore, with this configuration, air can be further prevented from entering from around the short side edge, thereby preventing dust from entering the object.

Figure 13 is a plan view showing the external shape of a filter structure according to a fourth embodiment of the present invention, and corresponds to Figure 1.

Note that since the second embodiment is basically the same as the first embodiment, the following explanation will focus on the differences.

Referring to the figure, in this fourth embodiment, the intersecting band portion 31 in the first embodiment is replaced with an intersecting band portion 36.

The intersecting band portion 36 is substantially perpendicular to the second band portion 22 (first band portion 21), and is configured such that bands extending from the first band portion 21 to the second band portion 22 are formed at a predetermined interval in the long side direction. In other words, the intersecting band portion 36 has an I-shaped rigid lattice shape. With this configuration, by aligning and cutting the lattice portion of the intersecting band portion 36, a filter structure surrounded on all four sides by the adhesive portion 20 can be formed, and the intrusion of air from around the short side edge can be substantially blocked.

In each of the above embodiments, a filter structure having specific dimensions has been described, but the present invention is not limited to these. For example, it is preferable that the size of the filter body is set to 75 to 85 cm for the long side and 33 to 43 cm for the short side. By setting the size of the filter body within this range, it is possible to obtain a filter structure that is highly versatile among air conditioners of different manufacturers and models, since it is well suited to the size of the air intakes of commonly used air conditioners.

Although not described in the above embodiments, the second to sixth bands, the intersecting bands, the marker portion, and the outline portion may be omitted in part or in whole.

Furthermore, in each of the above embodiments, it has been described that the filter body is antiviral-treated, but this is not limited to this. The filter body may be treated with at least one of antibacterial and antiviral treatments. Furthermore, these treatments may be inorganic agents such as photocatalysts as described above, organic agents, or a combination of these, and there are no particular limitations. Furthermore, for example, titanium oxide particles constituting the photocatalyst may be used that support copper. This makes it possible to suppress the occurrence or proliferation of bacteria or viruses.

Furthermore, although not specifically described in each of the above embodiments, the size of the rear air intake of the air purifier is often a combination of width (W62) 24, 25, 26, 30, 33 cm and height (H62) 38, 40 cm, and can be said to be set to a size of approximately 33 to 45 cm in height and 19 to 38 cm in width. When attaching the filter structure to the rear air intake of the air purifier, the filter body can be cut to match these sizes. When attaching to the rear air intake, the filter body may be cut to the same size as the rear air intake as long as it is a size that completely covers the rear air intake, or may be cut to a size larger than the rear air intake. However, in order to minimize the effect on the intake of the air purifier caused by the first and second bands overlapping part of the rear air intake, it is preferable to cut to a size larger than the rear air intake.

Furthermore, in each of the above embodiments, the size of the filter body is set to approximately 80 cm for the long side length W11 and approximately 38 cm for the short side length W12 so that it can be easily attached to both an air conditioner and an air purifier by cutting according to the object, but this is not limited to this. The size of the filter body may be set to match the size of the rear air intake of a specific air purifier. In other words, the length of each filter body may be appropriately set to match only the size of the air intake of the air purifier without cutting.

Furthermore, although not specifically described in each of the above embodiments, from the viewpoint of adhesion with an adhesive, it is preferable that the rear surface and rear air intake of the air purifier are made of a material made of a synthetic resin such as polystyrene (PS), high impact polystyrene (HIPS), or acrylonitrile butadiene styrene copolymer (ABS).

Furthermore, in the above first embodiment, the adhesive portion is described as being made of a urethane-based adhesive, but this is not limited to this. The adhesive portion may be made of an acrylic-based adhesive or a silicone-based adhesive, etc.

Furthermore, in the above-mentioned first embodiment, it has been explained that the ratio of the area of the adhesive portion to the area of the filter body is approximately 40%, but this is not limited to this. The above ratio is preferably 60% or less, and more preferably 55% or less.

Figure 14 is a plan view showing the external shape of a filter structure according to a fifth embodiment of the present invention, and corresponds to Figure 1, and Figure 15 is a bottom view of the filter structure shown in Figure 14.

The following explanation will focus on the similarities and differences with the first embodiment.

Referring to these figures, in this fifth embodiment, the filter structure 80 is intended to be attached, either in whole or in part, to an object such as an air purifier to filter the gas passing through, and is similar to the filter structure 1 in the first embodiment in that it comprises a filter body 10 and an adhesive portion 20, and that the adhesive portion 20 comprises a first belt portion 21 and a second belt portion 22.

The following describes the unique configuration of the filter structure 80. The adhesive portion 20 further includes a third band portion 81 and a fourth band portion 82 that extend parallel to the first band portion 21 and the second band portion 22, and intersecting band portions 83, 84, 85, and 86 that extend approximately perpendicular to the first band portion 21, the second band portion 22, the third band portion 81, and the fourth band portion 82.

The size of the filter structure 80 is set as follows:

Width of the intersecting bands 83, 84, 85 and 86 (H90): 10.0 mm
Length of the long side of the filter body 10 (H80): 560.0 mm
Length from the outer end of the intersecting band portion 83 to the outer end of the intersecting band portion 86 (H81): 550.0 mm
Length from the outer end of the intersecting band portion 84 to the outer end of the intersecting band portion 86 (H82): 440.0 mm
Length from the outer end of the intersecting band portion 85 to the outer end of the intersecting band portion 86 (H83): 380.0 mm
Length from the inner end of the intersecting band portion 83 to the inner end of the intersecting band portion 86 (H84): 530.0 mm
Length from the inner end of the intersecting band portion 84 to the inner end of the intersecting band portion 86 (H85): 420.0 mm
Length from the inner end of the intersecting band portion 85 to the inner end of the intersecting band portion 86 (H86): 360.0 mm
Width (W90) of the first belt portion 21, the second belt portion 22, the third belt portion 81, and the fourth belt portion 82: 10.0 mm
Length of short side of filter body 10 (W80): 380.0 mm
Length from the outer end of the first belt-like portion 21 to the outer end of the second belt-like portion 22 (W81): 370.0 mm
Length from the outer end of the first belt-like portion 21 to the outer end of the third belt-like portion 81 (W82): 350.0 mm
Length from the outer end of the first belt-like portion 21 to the outer end of the fourth belt-like portion 82 (W83): 270.0 mm
Length from the inner end of the first belt-like portion 21 to the inner end of the second belt-like portion 22 (W84): 350.0 mm
Length from the inner end of the first belt-like portion 21 to the inner end of the third belt-like portion 81 (W85): 330.0 mm
Length from the inner end of the first belt-like portion 21 to the inner end of the fourth belt-like portion 82 (W86): 250.0 mm
The effect of setting it in this way will be explained below.

First of all, the sizes of the rear air intakes on air purifiers can be broadly divided into three types: 250mm x 360mm, 330mm x 420mm, and 350mm x 530mm.

When using adhesive to bond the outer periphery of the rear air intakes of these three sizes, if the width of the adhesive is 10.0 mm, the outer dimensions of the adhesive part 20 should be set to 270 mm x 380 mm, 350 mm x 440 mm, and 370 mm x 550 mm, and the above-mentioned sizes H81 to H86 and W81 to W86 are set to fit this.

When manufacturing the filter structure 80, the original roll is cut out, but is not cut where the adhesive is applied, so the overall size of the filter body 10 is 380 mm (W80) x 560 mm (H80), with 5 mm on each side to serve as ears.

When attaching to the rear air intake of the air purifier, the filter structure 80 is cut along the strips (21, 22, 81, 82) and the intersecting strips (83-86) according to the vertical or horizontal size of the rear air intake of the air purifier as described above, to obtain an adhesive pattern that surrounds the periphery of the rear air intake of the air purifier.

Figure 16 is a plan view showing the external shape of a filter structure according to a sixth embodiment of the present invention, and corresponds to Figure 14.

Note that since this is basically the same as the fifth embodiment, the following explanation will focus on the differences.

Referring to the figure, in this sixth embodiment, the adhesive portion 20 in the fifth embodiment further includes a fifth band portion 91 and a sixth band portion 92 that extend parallel to the first band portion 21, etc., intersecting band portions 93 and 94 that extend approximately perpendicular to the first band portion 21, etc., and a marker portion 95 provided within each area surrounded by the band portions (21, 91, 92, 82, 81, 22) and the intersecting band portions (83, 84, 85, 94, 93, 86).

The fifth band portion 91 and the sixth band portion 92 are arranged so as to be symmetrical with the third band portion 81 and the fourth band portion 82 with respect to the center line connecting the centers of a pair of short sides of the approximately rectangular shape of the filter body 10.

The intersecting bands 93 and 94 are arranged so as to be symmetrical to the intersecting bands 84 and 85 with respect to a center line connecting the centers of a pair of long sides of the approximately rectangular shape of the filter body 10.

The sign 95 is made up of multiple heart shapes, and as use progresses, dust accumulates around the heart shape of the sign 95, causing the heart shape of the sign 95 to rise, indicating when it is time to replace the filter structure 80. There are no particular limitations on the size of the heart shapes, but it is preferable to set them to 13 mm x 13 mm.

The effect of setting the size of the heart shape in this way is explained below.

First, the rear air intake of an air purifier is often formed in a lattice pattern with multiple openings, each of which is a roughly rectangular shape, aligned vertically and horizontally, and the size of the lattice pattern is sometimes set to 15 mm x 15 mm.

In the case of such a grid size of 15 mm x 15 mm, it is preferable to set the size of the heart shape of the sign portion 95 to 15 mm x 15 mm or less so as not to block the gaps between the grids. On the other hand, considering the visibility when the heart shape rises as use progresses, it is preferable that the size of the heart shape is larger than 7 mm x 6 mm or 6 mm x 7 mm. From the above, it can be said that it is preferable to set the size of the heart shape to 7 mm x 6 mm or 6 mm x 7 mm, or 7 mm x 7 mm to 15 mm x 15 mm.

The heart shapes included in the sign portion 95 are arranged in a staggered pattern within each region so as not to overlap with the band portions (21, 91, 92, 82, 81, 22) and the intersecting band portions (83, 84, 85, 94, 93, 86). For example, the heart shape in a certain region portion B81 is arranged on a 45° diagonal line L81, and the heart shape in another region portion B82 is arranged on a 45° diagonal line L82, but the lines L81 and 82 are parallel to each other and are offset so that they do not intersect even when extended.

Here, when the filter structure 80 is attached to the rear air intake of the air purifier, the heart shapes may not rise properly even with continued use, depending on the positional relationship between the rear air intake of the air purifier and the lattice. By arranging it as described above, the positional relationship between the heart shapes and the lattice of the rear air intake of the air purifier can be shifted for each area, preventing all of the heart shapes from failing to rise properly.

In the fifth and sixth embodiments, a filter structure composed of a specific number of bands and intersecting bands has been described, but there is no limit to the number. For example, in the fifth embodiment, it is also possible to provide bands and intersecting bands similar to those in the sixth embodiment.

In the sixth embodiment, the sign portion is configured with multiple heart shapes, but this is not limited to this. The sign portion may be configured with other sign elements such as patterns and letters, as long as the sign portion is coated with adhesive in a sign shape that indicates when to replace the filter structure. The sign element may be sized to fit within a range formed by a square or rectangle with one side measuring 6 to 15 mm and the other side measuring 6 to 15 mm. This configuration can prevent the sign element from blocking the gaps in the lattice of the rear air intake of the air purifier, and increases the visibility of the sign element as use progresses. This allows the sign element to more reliably function as a sign indicating when to replace the filter structure.

Furthermore, in the sixth embodiment, the multiple heart shapes are arranged in a staggered pattern in each region, but this is not limited to the above. The multiple heart shapes can be configured to be arranged at a distance from each other. In other words, the multiple heart shapes may be formed in the region so that they are scattered like islands.

Furthermore, in the sixth embodiment, the multiple heart shapes are arranged on a specific line, but this is not limited to this. The multiple heart shapes can be arranged in such a way that the closest heart shapes are offset from each other either up, down, left, or right. This ensures that dust adheres to the periphery of the sign elements of the sign section, and prevents the sign elements of the sign section from failing to lift up properly.

Furthermore, although not specifically described in the fifth and sixth embodiments above, the filter structure may be formed to a size for an air conditioner, as described in the first embodiment above, and then cut to a specified size.

The present invention will be described in detail below with reference to examples, although the present invention is not limited to these examples.
I. Configuration of the filter structure used in the test As examples and comparative examples, seven types of filter structures were prepared in total, each having a filter body made of the above-mentioned nonwoven fabric and an adhesive portion having a pattern as shown in FIG. 1, and differing in basis weight and air permeability.

Examples 1 to 4 were constructed so that the air permeability of the filter body measured based on JIS L 1096 A method (Frazier method) was within the range of 1500 to 5000 cc/cm ² /sec.

In each of the comparative examples 1 to 3, the ventilation amount was less than 1500 cc/cm ² /sec.

The sizes of each are as follows:

-Length of long side: Approximately 80cm
・Short side length: approx. 38cm
II. Test Details and Results Using the above seven types of filter structures, the following tests were performed by fitting the filters to the target models of air conditioners and air purifiers, as shown below, after appropriately cutting the filters to the sizes required.
1. Applicable model: Air conditioner Manufactured by Daikin Industries, Ltd. Product number: F22CTES-W
・Air purifier manufactured by Sharp Corporation Product number: KI-FX55-W
External dimensions (mm): Width 392 x Depth 265 x Height 635
Rear air inlet dimensions (mm): Width 227 x Height 345
2. Test Contents (1) Air Conditioner: Abnormal Sound Detection Test After the filter structure was attached to the air conditioner, operation was started, and a sensory test was performed to confirm whether or not any abnormal sounds different from normal operation sounds were generated for about 20 minutes.
(2) Air Purifier: Abnormal Sound Detection Test After attaching a filter structure cut to a size (width: about 26 cm x length: about 38 cm) larger than the rear air intake of the air purifier so as to completely cover the rear air intake, operation was started, and a sensory test was performed to confirm whether or not abnormal sounds different from normal operation sounds were generated. Note that the filter structure was cut so that the long side of the filter body matched the vertical height of the rear air intake of the air purifier, as in the second embodiment.
・Cleaning sign confirmation test After attaching the filter structure to the air purifier, we checked whether the cleaning sign would light up after starting operation. In the target model, if the filter is clogged, the cleaning sign will light up. If it lights up, it is considered that the breathability of the filter structure is low.

The results are shown in Table 1 below.

表１を参照して、エアーコンディショナーの異常の列では、異音感知試験にて、エアーコンディショナーの異音が確認されなかったものは、○印とし、異音が確認されたものは×印としている。

Referring to Table 1, in the column for air conditioner abnormalities, those for which no abnormal noise was detected in the abnormal noise detection test are marked with an ◯, and those for which abnormal noise was detected are marked with an X.

In the column for air purifier abnormalities, those for which no abnormal noise was detected in the abnormal noise detection test are marked with an O, and those for which an abnormal noise was detected are marked with an X. Also, in the cleaning sign confirmation test, those for which the cleaning sign did not light up are marked with an O, and those for which the cleaning sign did light up are marked with an X.

In the test results, items in which no abnormalities occurred in either the air conditioner or the air purifier were rated as ○, and items in which an abnormality occurred in either were rated as ×.

As a result, all of Examples 1 to 4, in which the ventilation volume was set to 1500 cc/cm ² /sec or more, were evaluated as ◯.

On the other hand, in Comparative Example 5 with an airflow rate of 1342 cc/cm ² /sec, no abnormality occurred in the air conditioner, but the cleaning sign came on in the air purifier cleaning sign confirmation test, so it was rated as x.

In addition, in both Comparative Examples 6 and 7, which had an airflow rate of 865 cc/cm ² /sec, an abnormality occurred in the air conditioner, and an abnormality also occurred in the cleaning sign confirmation test of the air purifier.

INDUSTRIAL APPLICABILITY As described above, the filter structure for an air purifier and the ventilation structure of an air purifier to which the filter structure is attached according to the present invention are suitable for, for example, being attached to an object to filter the gas passing therethrough.

Claims (12)

A filter structure (1) for filtering gas passing through an object by attaching a part of the filter structure or the whole of the filter structure to the object,
A filter body (10) having flexibility and being formed in a sheet shape having a rectangular shape in a plan view;
An adhesive portion (20) formed by applying an adhesive to one surface of the filter body,
The adhesive portion is
A first band-shaped portion (21) extending along one edge of a pair of long sides of the rectangular shape;
A second band-shaped portion (22) extending along the other edge of the pair of long sides of the rectangular shape,
The air permeability of the filter body is set to 1500 to 5000 cc/cm ² /sec;
The weight of the filter body is set to 30 to 50 g/ ^m2 ,
The object to which the filter structure is attached includes at least an air intake of an air conditioner and an air purifier,
Further, the adhesive portion includes intersecting band portions (31, 35, 36, 83, 84, 85, 86, 93, 94) that intersect with the first band portion and the second band portion and extend from the first band portion to the second band portion at predetermined intervals in the long side direction,
Furthermore, the adhesive portion is
a marking portion (32) provided so as to overlap at least a part of the intersecting band portion and coated with an adhesive in a marking shape indicating the time to replace the filter structure;
A contour portion (33) is provided around the marker portion and to which no adhesive is applied,
Furthermore, the adhesive portion is
A third belt-shaped portion (23) is formed so as to extend along an imaginary line on the first belt-shaped portion side of the imaginary line that can be used by connecting the centers of a pair of short sides of the rectangular shape and folding the same;
A fourth band portion (24) formed on the second band portion side so as to extend along the virtual line;
a fifth band portion (25) formed on the first band portion side and spaced apart from the third band portion;
a sixth band portion (26) formed on the second band portion side and spaced apart from the fourth band portion;
the third band portion is wider than the first band portion, and the fourth band portion is wider than the second band portion;
A filter structure, wherein the marking portion is positioned within an area outside a central area defined by the fifth band portion and the sixth band portion. The filter structure of claim 1, wherein the intersecting bands intersect with the first bands and the second bands at an angle of at least one of 45° and 135°. The filter structure of claim 1, wherein the cross band is perpendicular to the first band and the second band. A filter structure (1) for filtering gas passing through an object by attaching a part of the filter structure or the whole of the filter structure to the object,
A filter body (10) having flexibility and being formed in a sheet shape having a rectangular shape in a plan view;
An adhesive portion (20) formed by applying an adhesive to one surface of the filter body,
The adhesive portion is
A first band-shaped portion (21) extending along one edge of a pair of long sides of the rectangular shape;
A second band-shaped portion (22) extending along the other edge of the pair of long sides of the rectangular shape,
The air permeability of the filter body is set to 1500 to 5000 cc/cm ² /sec;
The weight of the filter body is set to 30 to 50 g/ ^m2 ,
The object to which the filter structure is attached includes at least an air intake of an air conditioner and an air purifier,
Further, the adhesive portion includes intersecting band portions (31, 35, 36, 83, 84, 85, 86, 93, 94) that intersect with the first band portion and the second band portion and extend from the first band portion to the second band portion at predetermined intervals in the long side direction,
the cross band is perpendicular to the first band and the second band;
Furthermore, the adhesive portion is
A sign portion having an adhesive applied thereto in a sign shape indicating the time to replace the filter structure;
a contour portion provided around the marker portion and not coated with adhesive;
The marker portion is provided in a region (B81, B82) surrounded by the intersecting band portion, the first band portion, and the second band portion, and is provided so as not to overlap the intersecting band portion, the first band portion, and the second band portion;
The sign portion is composed of a plurality of sign elements,
The plurality of sign elements are formed in the region so as to be scattered in an island shape,
A filter structure, wherein the plurality of marking elements in one of the area portions are arranged on one line, and the plurality of marking elements in another of the area portions are arranged on another line, the one line and the other line being in a parallel relationship and offset so as not to intersect even when extended. The filter structure according to claim 4, wherein the marking element is sized to fit within a range formed by a square or rectangle having one side of 6 to 15 mm and the other side of 6 to 15 mm. The filter structure according to claim 5, wherein the plurality of marking elements are arranged such that the closest marking elements are offset from each other either vertically or horizontally. The filter structure according to any one of claims 1 to 6, wherein the filter body is treated with at least one of antibacterial and antiviral properties. The filter structure according to any one of claims 1 to 7, wherein the size of the filter body is set to 75 to 85 cm on the long side and 33 to 43 cm on the short side. A filter structure according to any one of claims 4 to 6 and claim 8,
The long side of the filter body is cut to match the vertical height of the rear air intake (62) of the air purifier, thereby forming a filter structure for an air purifier. A filter structure according to any one of claims 4 to 6 and claim 8,
The long side of the filter body is cut to match the width of the rear air intake of the air purifier, thereby forming a filter structure for an air purifier. A ventilation structure (70) for an air purifier, comprising:
A rear air intake port is provided on the rear of the air purifier and has a size of 33 to 55 cm in height and 19 to 38 cm in width;
A ventilation structure for an air purifier comprising: the filter structure for an air purifier according to any one of claims 4 to 6, 9 and 10, which is attached in alignment with the rear air intake port. A ventilation structure (70) for an air purifier, comprising:
a rear air intake port provided on the rear of the air purifier, the rear air intake port having a size of 33 to 55 cm in height and 19 to 38 cm in width, and having at least a plurality of rectangular openings arranged vertically and horizontally;
7. A ventilation structure for an air purifier comprising: a filter structure for an air purifier, the filter structure being attached in such a manner that a long side of the filter body of the filter structure according to claim 2 is aligned with the rear air intake port.

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