JP6243151B2 - Filter structure and ventilation structure of bathroom ventilation dryer - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a filter structure and a ventilation structure of a bathroom ventilation dryer, and more particularly to a filter structure that is detachably attached to a resin filter or a filter frame installed in an intake port of a device and a ventilation structure of a bathroom ventilation dryer. It is.

  Various bathroom ventilation dryers have been proposed that are installed on a ceiling in a bathroom to ventilate the bathroom and also dry laundry in the bathroom.

  FIG. 10 is a perspective view schematically showing an example of the external shape of a bathroom ventilation dryer.

  Referring to the figure, bathroom ventilation dryer 61 is installed on ceiling 65, and intake is performed via an intake port (not shown). At that time, as the bathroom ventilation dryer 61, there are provided a type in which a resin filter (not shown) is installed at the air inlet and a type in which a filter frame is installed.

  FIG. 11 is a schematic exploded perspective view of a bathroom ventilation dryer in which a resin filter is installed, and FIG. 12 is a schematic exploded perspective view of a bathroom ventilation dryer in which a filter frame is installed.

First, referring to FIG. 11, a bathroom ventilation dryer 71 is a type in which a resin filter 77 having a mesh surface 76 covering an air inlet 73 is installed. The resin filter 77 is attached by being inserted from a filter insertion port 74 provided in the bathroom ventilation dryer 71. Such a type of bathroom ventilation dryer is disclosed in Patent Document 1 and Patent Document 2.
Next, referring to FIG. 12, the bathroom ventilation dryer 81 is a type in which a filter frame 87 to which a non-woven fabric 86 is attached is installed in the air inlet 83. Such a type of bathroom ventilation dryer is disclosed in Patent Literature 3 and Patent Literature 4.

JP 2008-190730 A JP 2010-14040 A JP-A-8-280998 JP 2011-69554 A

However, in the above prior art, when the resin filter 77 is washed with water in order to remove dust, the mesh surface 76 may be inadvertently broken. Furthermore, when the mesh surface 76 is rough, fine dust may pass through the mesh surface 76 and enter the bathroom ventilation dryer 71.
For this reason, a filter structure or the like that is detachably attached to a resin filter or a filter frame has been desired.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a filter structure or the like that can be detachably attached to a resin filter or a filter frame installed in an intake port of a device.

  In order to achieve the above object, the invention according to claim 1 is a filter structure that is detachably attached to a resin filter or a filter frame that is installed so as to cover an air inlet inside a bathroom ventilation dryer. , A tubular filter body having an open portion on one side and configured to be stretchable, and a ring-shaped band body that is attached to the entire circumference of the open portion and is stretchable. The filter body is made of polyethylene terephthalate ( PET), nylon, polylactic acid, polypropylene (PP), acrylonitrile-butadiene-styrene copolymer synthetic resin (ABS), polymethyl methacrylate (PMMA), polycarbonate, and polyacetal. It is formed in a bag shape with one part and is 40 mesh with fibers of a maximum thickness of 300 denier. Is that formed a 60 mesh or less.

  If comprised in this way, the range of the resin filter and filter frame which can be attached will be expanded. Also, the mounting position of the filter body is determined. Furthermore, there is little influence of the operation | movement of a bathroom ventilation dryer, and the bulk attached to a resin filter etc. becomes low.

  According to a second aspect of the present invention, in the configuration of the first aspect of the present invention, the filter body is formed by circular knitting continuous in the circumferential direction.

If comprised in this way, it will become easy to extend in the circumferential direction irrespective of the characteristic of a fiber.
The invention described in claim 3 includes a bathroom ventilation dryer provided with a resin filter or a filter frame installed so as to cover the internal air inlet, and a filter structure that is detachably attached to the resin filter or filter frame. The ventilation structure of the ventilation dryer, the filter structure has an open part on one side, a tubular filter body configured to be stretchable, and attached to the entire circumference of the open part, and is a stretchable ring shape The filter body is made of polyethylene terephthalate (PET), nylon, polylactic acid, polypropylene (PP), acrylonitrile-butadiene-styrene copolymer synthetic resin (ABS), polymethyl methacrylate (PMMA), polycarbonate and It is formed from any kind of polyacetal fiber, and one open part It is formed in a bag shape, formed from 40 mesh to 60 mesh with fibers having a maximum thickness of 300 denier, and a resin filter or filter frame is inserted into the filter structure through the opening. The filter structure is attached to a resin filter or a filter frame.
If comprised in this way, the range of the resin filter and filter frame which can be attached will be expanded. Also, the mounting position of the filter body is determined. Furthermore, there is little influence of the operation | movement of a bathroom ventilation dryer, and the bulk attached to a resin filter etc. becomes low.

  As described above, the invention according to claim 1 is an efficient filter structure that improves the usability because the range of resin filters and filter frames that can be attached is expanded. Further, since the mounting position of the filter body is determined, the filter structure can be easily mounted. Furthermore, since the influence of the operation of the bathroom ventilation dryer is small and the volume attached to a resin filter or the like is low, an efficient filter structure is obtained.

In addition to the effect of the invention described in claim 1, the invention described in claim 2 is easily stretched in the circumferential direction regardless of the characteristics of the fiber, so that it can be easily attached to a resin filter or the like.
Since the range of the resin filter which can be attached and the range of the filter frame are expanded, the invention according to claim 3 becomes an efficient filter structure which improves usability. Further, since the mounting position of the filter body is determined, the filter structure can be easily mounted. Furthermore, since the influence of the operation of the bathroom ventilation dryer is small and the volume attached to a resin filter or the like is low, an efficient filter structure is obtained.

It is the perspective view which showed the external appearance shape of the filter structure by 1st Embodiment of this invention. FIG. 2 is an enlarged view of an “X” portion shown in FIG. 1. It is the perspective view which showed schematically the external appearance shape of a filter structure and a resin filter before attaching the filter structure shown in FIG. 1 to a resin filter. It is the front view which showed schematically the external appearance shape of the resin filter after attaching the filter structure shown in FIG. 1 to the resin filter. It is sectional drawing of the VV line shown in FIG. FIG. 6 is a schematic exploded perspective view showing an example of an attaching process of the resin filter shown in FIGS. 4 and 5 to a bathroom ventilation dryer. It is a general | schematic disassembled perspective view which showed the attachment process to the bathroom ventilation dryer of the filter frame in which the filter structure which concerns on this invention was attached. In the filter structure shown in FIG. 1, it is the perspective view which showed schematically the external appearance shape of a filter structure and a resin filter before attaching a filter structure to another resin filter. It is the figure corresponding to FIG. 8, Comprising: It is the front view which showed the attachment process of the filter structure roughly. It is the perspective view which showed schematically one example of the external shape of a bathroom ventilation dryer. It is a general | schematic disassembled perspective view of the bathroom ventilation dryer in which a resin filter is installed. It is a schematic exploded perspective view of the bathroom ventilation dryer in which a filter frame is installed.

  FIG. 1 is a perspective view showing an external shape of a filter structure according to a first embodiment of the present invention, and FIG. 2 is an enlarged view of an “X” portion shown in FIG.

  With reference to these drawings, the filter structure 11 is configured around a filter main body 14 formed in a bag shape. The filter body 14 has one open portion 17, and a polyurethane rubber 18 is attached to the entire periphery of the open portion 17. The filter body 14 is configured to be stretchable by continuously knitting a polyethylene terephthalate (PET) fiber 15 having a fiber thickness of 20 denier (about 45 μm) in the circumferential direction.

  Next, the attachment of the filter structure shown in FIG. 1 to the resin filter of the bathroom ventilation dryer will be described.

  FIG. 3 is a perspective view schematically showing the appearance of the filter structure and the resin filter before the filter structure shown in FIG. 1 is attached to the resin filter, and FIG. 4 is a filter structure shown in FIG. 5 is a front view schematically showing the appearance of the resin filter after being attached to the resin filter, and FIG. 5 is a cross-sectional view taken along the line V-V shown in FIG. 4.

  Referring to these drawings, when attaching, first, as shown in FIG. 3, a resin filter 77 is inserted into the filter structure 11 through the open portion 17 in which the polyurethane rubber 18 is expanded. At this time, since the filter main body 14 is formed by circular knitting and is configured to be easily stretched in the circumferential direction, the resin filter 77 can be easily inserted. Further, since the filter main body 14 is formed in a bag shape, the attachment position of the filter main body 14 is determined on the back side, so that the filter structure 11 can be easily attached. Furthermore, since the filter structure 11 is fixed to the resin filter 77 by the polyurethane rubber 18 attached to the entire periphery of the open portion 17, there is no possibility that the filter structure 11 will accidentally fall from the resin filter 77.

  By attaching the filter structure 11 in this way, the resin filter 77 is covered with the filter body 14 as shown in FIGS.

  Next, installation of the resin filter to which the filter structure is attached to the bathroom ventilation dryer will be described.

  FIG. 6 is a schematic exploded perspective view showing an example of a process of attaching the resin filter shown in FIGS. 4 and 5 to a bathroom ventilation dryer.

  With reference to the figure, the resin filter 77 to which the filter structure 11 is attached can be installed in the air inlet 73 of the bathroom ventilation dryer 71. At that time, the resin filter 77 is attached by being inserted from the filter insertion port 74. The filter main body 14 is made of fibers having a thickness of 20 deniers and is highly stretchable, so that the filter main body 14 is close to the shape of the resin filter 77. Therefore, the resin filter 77 can be smoothly inserted into the filter insertion port 74 without being affected by the filter structure 11.

  Up to this point, the installation of a bathroom ventilation dryer of the type that installs a resin filter at the intake port has been explained. However, the bathroom ventilation dryer of the type that installs a filter frame at the intake port is also as follows. The filter structure according to the present invention can be applied.

  FIG. 7 is a schematic exploded perspective view showing a process of attaching the filter frame to which the filter structure according to the present invention is attached to a bathroom ventilation dryer.

  Referring to (1) of FIG. 7, in the bathroom ventilation dryer 81 in which the filter frame 87 is installed at the air inlet 83, after the filter structure 11 is attached to the filter frame 87, (2) of FIG. The filter frame 87 may be installed at a predetermined position of the bathroom ventilation dryer 81 as shown in FIG.

  By attaching the filter structure 11 to the resin filter 77 (see FIG. 6) or the filter frame 87 (see FIG. 7) in this way, dust is captured by the filter body 14, so that the dust is removed from the bathroom ventilation dryer 71 ( There is no risk of entering the interior of the bathroom ventilation dryer 81 (see FIG. 7). Moreover, since the filter main body 14 has a circular knitted mesh structure, the air flow is not hindered when the bathroom ventilation dryer 71 (or 81) is inhaled by attaching the filter structure 11. Furthermore, since the filter main body 14 is made of PET fiber and has water resistance, the filter structure 11 to which dust adheres can be removed, washed with water, and used repeatedly, which is economical.

  The filter structure according to the present invention can also be applied to resin filters and filter frames having different sizes. This will be described below using a resin filter as an example.

  FIG. 8 is a perspective view schematically showing the appearance of the filter structure and the resin filter before the filter structure is attached to another resin filter in the filter structure shown in FIG. FIG. 8 is a front view schematically showing the attachment process of the filter structure, corresponding to FIG.

  First, referring to (1) of FIG. 8 and FIG. 9, when used for a small resin filter 27, the resin is first introduced into the filter structure 11 through the open portion 17 in which the polyurethane rubber 18 is expanded. Insert the filter 27.

  Next, as shown in (2) of FIG. 9, the end of the remaining filter body 14 of the filter structure 11 on the opening portion 17 side is twisted. Finally, as shown in FIG. 9 (3), the part of the open part 17 side of the twisted part of the filter structure 11 is turned over to the resin filter 27 side and covered with the resin filter 27. The filter structure 11 is fixed to the resin filter 27 via the polyurethane rubber 18. In this way, the filter structure 11 can be stably attached regardless of the size of the resin filter.

  In the above embodiment, the filter structure is attached to the resin filter or the filter frame of the bathroom ventilation dryer, but the resin filter or the filter frame that is detachably attached to the air intake of an appliance such as an air conditioner. Can be applied similarly.

  In the above embodiment, polyurethane rubber is used as the elastic ring-shaped band. However, any other elastic band-shaped band may be used.

  Furthermore, in the above embodiment, the filter main body is formed in a bag shape, but the filter main body has an open portion at least on one side and can be extended and contracted, as in the present invention. The effect of.

  Furthermore, in the above embodiment, there is one open portion, but two may be provided to form the filter body in a cylindrical shape.

  Furthermore, in the above embodiment, the filter main body is formed of PET fiber. For example, nylon, polylactic acid, polypropylene (PP), acrylonitrile-butadiene-styrene copolymer synthetic resin (ABS), polymethyl methacrylate ( PMMA), polycarbonate, polyacetal and the like.

  Furthermore, in the above embodiment, the filter body is formed by circular knitting so that it can easily extend in the circumferential direction regardless of the characteristics of the fiber. It may be formed by knitting or weaving.

  Furthermore, in the above embodiment, the filter main body is formed only of PET fibers, but an antibacterial substance or the like may be kneaded into the fibers or attached with a binder.

  Furthermore, in the above embodiment, the filter body is formed of a specific value of denier. However, for use in a resin filter of a bathroom ventilation dryer or a filter frame, the filter body is made of fibers having a thickness of up to 300 denier. If it is formed to 60 mesh or less, it does not affect the operation of the bathroom ventilation dryer as in the present invention.

The features of the present invention will be described more specifically with reference to the following examples and comparative examples. However, the scope of the present invention is not limited to the examples.
1. Measurement of the temperature in the bathroom when the bathroom ventilation dryer is operated As the filter according to the example, the filter structure of the present invention having a certain number of meshes and deniers is used, while the filter according to the comparative example has a mesh number of Different filter structures of the present invention and non-woven fabrics with a basis weight and denier number in a certain range were used. Each filter is (1) not attached to a resin filter (hereinafter referred to as “no filter (A)”), and (2) attached to a resin filter (hereinafter referred to as “with filter (B)”). Then, the bathroom ventilation dryer was operated, and for each of (1) and (2), the temperature in the bathroom was measured when the temperature increase in the bathroom was stopped by operating the thermostat of the bathroom ventilation dryer.

In this example, the filter structure had a filter body formed from PET fibers, while the nonwoven fabric was made of PET. In both the examples and comparative examples, the type of bathroom ventilation dryer and the measurement conditions in the bathroom were the same as follows.
Types of bathroom ventilation dryer:
・ Product made by Max Co., Ltd. (product number: BS-112HA, ventilation fan size: length 37cm x width 46cm)
Bathroom condition:
・ Bathroom size Width 110cm x Depth 160cm x Height 200cm
・ No window in the bathroom ・ Bathroom door is closed ・ Bathroom is in a dry state ・ Bathroom temperature before starting the experiment (before the bathroom ventilation dryer is activated) 27 ℃ (Check that the temperature in the bathroom is stable After that, I activated the bathroom ventilation dryer)
2. Evaluation method When the difference between “without filter (A)” and “with filter (B)” is less than 3 ° C., it is evaluated as “◯”, and when the difference is 3 ° C. or more, it is evaluated as “×”. . These results are summarized in Table 1.

表１から、フィルター本体は、最大３００デニールの太さの繊維により６０メッシュ以下に形成されている（実施例１〜実施例３）と、浴室換気乾燥機の作動への影響が少ないことがわかった。

From Table 1, it can be seen that the filter body is less than 60 mesh of fibers with a maximum thickness of 300 denier (Examples 1 to 3) and has little effect on the operation of the bathroom ventilation dryer. It was.

  On the other hand, when the denier of the filter main body is 300, when the mesh becomes 120 mesh, the temperature in the bathroom when the thermostat of the bathroom ventilation dryer was operated was low (Comparative Example 1). Moreover, when the nonwoven fabric filter was attached, the temperature in the bathroom when the thermostat of the bathroom ventilation dryer was operated was low regardless of the basis weight of the nonwoven fabric and the number of deniers (Comparative Example 2 to Comparative Example 6). These results show that when a 120-mesh filter body or a non-woven filter is attached, the amount of air intake by the bathroom ventilation dryer decreases and the temperature inside the bathroom ventilation dryer rises, which increases the temperature inside the bathroom so much. This is probably due to the thermostat being activated. Note that it is expected that the same result can be obtained even if the same experiment is performed by replacing the resin filter with the filter frame.

DESCRIPTION OF SYMBOLS 11 ... Filter structure 14 ... Filter body 15 ... PET fiber 17 ... Opening part 18 ... Polyurethane rubber 27, 77 ... Resin filter 71, 71 ... Bathroom ventilation dryer 87 ... Filter frame In addition, the same code | symbol in each figure is the same or equivalent Indicates the part.

Claims (3)

A filter structure that is detachably attached to a resin filter or a filter frame that is installed so as to cover the air intake inside the bathroom ventilation dryer,
A cylindrical filter body having an open part on one side and configured to be stretchable;
It is attached to the entire circumference of the open part, and comprises an elastic ring-shaped band body,
The filter body is
Polyethylene terephthalate (PET), nylon, polylactic acid, polypropylene (PP), acrylonitrile / butadiene / styrene copolymer synthetic resin (ABS), polymethyl methacrylate (PMMA), polycarbonate and polyacetal. And
It is formed in a bag shape with one open part,
A filter structure formed from 40 mesh to 60 mesh with fibers having a maximum thickness of 300 denier.   The filter structure according to claim 1, wherein the filter body is formed by circular knitting continuous in a circumferential direction. Ventilation structure of a bathroom ventilation dryer provided with a resin filter or a filter frame installed so as to cover an internal air inlet, and a filter structure detachably attached to the resin filter or the filter frame Because
The filter structure is
A cylindrical filter body having an open part on one side and configured to be stretchable;
It is attached to the entire circumference of the open part, and comprises an elastic ring-shaped band body,
The filter body is
Polyethylene terephthalate (PET), nylon, polylactic acid, polypropylene (PP), acrylonitrile / butadiene / styrene copolymer synthetic resin (ABS), polymethyl methacrylate (PMMA), polycarbonate and polyacetal. And
It is formed in a bag shape with one open part,
It is formed to 40 mesh or more and 60 mesh or less by the fiber of the thickness of maximum 300 denier,
The ventilation of a bathroom ventilation dryer, wherein the filter structure is attached to the resin filter or the filter frame by the resin filter or the filter frame being inserted into the filter structure through the opening. Construction.

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