JPH11325535A - Insect prevention structure for indoor ventilating structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an insect prevention structure for an indoor ventilating unit in which it is simply removable from the inside of a room, and it removes foreign matter such as insects which can be found with naked eyes and dust to prevent clogging of a filter for improvement of maintenance. SOLUTION: An insect prevention structure is constructed by mounting an insect prevention set 20 on a fresh air intake hole 3 of an indoor ventilating unit 1 removably from the inside of the body case 2, the indoor ventilating unit 1 serving to purify fresh air introduced from the fresh air intake hole 3 that is opened it the body case 2 with a filter 15 and supplies it into a room. Hereby, the insect prevention unit 20 is mounted removably from the inside of the body case 20 with respect to the fresh air intake hole 3 of the indoor ventilating unit 1, so that the insect prevention set 20 is simply removed from the inside of the room for easy maintenance such as cleaning, and further foreign matter such as insects that can be found with naked eyes and dust is removed with the insect prevention set 20 to prevent clogging of the filter 15 and further restrict exchange frequency of the filter 15 to be lower for improvement of maintenance.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insect repellent structure of an indoor ventilation unit for supplying outside air to a room.

[0002]

2. Description of the Related Art In an indoor ventilation unit for purifying outside air introduced from an outside air intake opening to a main body case with a filter and supplying the same to the inside of a room, foreign objects such as outdoor insects and relatively large visible dust. The system is equipped with an insect hood-equipped external hood and a medium-performance filter to prevent entry into the living room.

[0003]

However, there is a problem that the external hood with an insect net is often installed at a high place, and the maintenance cannot be easily performed because the external hood cannot be removed.

Further, since the medium-performance filter is intended to remove fine particles of about 20 μm such as pollen and the like, clogging with visible insects and dust is fast, and the frequency of replacement is high, so that maintenance is troublesome. was there.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to remove easily visible foreign objects such as insects and dust by easily attaching and detaching from a room. It is an object of the present invention to provide an insect repellent structure of an indoor ventilation unit which can prevent clogging of the indoor ventilation unit and can enhance maintenance.

[0006]

In order to achieve the above object, according to the first aspect of the present invention, there is provided a room for purifying outside air introduced from an outside air intake opening to a main body case with a filter and supplying the same to a room. An insect repellent set is detachably attached to the outside air inlet of the ventilation unit from the inside of the main body case to constitute an insect repellent structure of the indoor ventilation unit.

According to a second aspect of the present invention, in the first aspect of the present invention, the insect repellent set includes an insect repellent net having a mesh larger than the filter and a mounting member for holding the mesh.

According to a third aspect of the present invention, in the first or second aspect of the invention, the insect net is formed of a funnel-shaped bag.

Therefore, according to the present invention, since the insect repellent set is detachably attached to the outside air intake of the indoor ventilation unit from the inside of the main body case, the insect repellent set can be easily detached from the room to perform maintenance such as cleaning. Can be easily performed, and the insect repellent set can remove foreign objects such as insects and dust, thereby preventing clogging of the filter due to the foreign objects. Can be enhanced.

[0010]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a side sectional view of an indoor ventilation unit having an insect repellent structure according to the present invention, FIG. 2 is a cutaway perspective view of the indoor ventilation unit, and FIG. 3 explains the operation of a total heat exchanger of the indoor ventilation unit. FIG. 4 is a partial cross-sectional view of the indoor ventilation unit when the insect-proof set is mounted, FIG. 5 is a partial cross-sectional view of the indoor ventilation unit when the insect-proof set is detached, and FIG. 6 is a perspective view of the insect-proof set.

The indoor ventilation unit 1 shown in FIGS. 1 and 2 has a rectangular box-shaped main body case 2, and the main body case 2 is made of two case bodies 2A and 2B formed of a highly heat-insulating foam material. Are connected and integrated by a connecting body 2C formed into a rectangular duct shape by sheet metal.

A round pipe-shaped outside air intake port (intake hose connection port) 3 is formed on the end face of one case body 2A of the main body case 2, and the other case body 2A is formed.
One end of B also has a round pipe-shaped exhaust port (exhaust hose connection port) 4 and four small-diameter air supply ports (air supply hose connection ports) 5. Although not shown, an intake hose is connected to the outside air intake 3, an exhaust hose is connected to the exhaust port 4, and an air supply hose is connected to each air supply port 5. The intake hose and the exhaust hose are open to the outside, and the air supply hose is open to the room.

The interior of the main body case 2 is vertically divided into an exhaust chamber S1 and an air supply chamber S2 by a partition 6 made of sheet metal, and the exhaust port 4 is opened in the upper exhaust chamber S1.
The outside air inlet 3 and the plurality of air inlets 5 are opened in the lower air supply chamber S2.

The exhaust chamber S1 and the air supply chamber S2 in the main body case 2 are provided with an exhaust fan 8 and an air supply fan 9 which are integrally rotated by a common rotating shaft 7, respectively. Are rotatably housed in the housings 10 and 11, respectively. The exhaust fan 8 and the air supply fan 9 are constituted by sirocco fans, and these are driven to rotate by an electric motor (not shown).

Further, a rectangular parallelepiped total heat exchanger 12 is detachably attached to the case body 2 in the air supply chamber S2 of the case body 2 and between the case body 2A and the connecting body 2C. It is arranged. This total heat exchanger 12 is shown in FIG.
As shown in the figure, a paper corrugated fin 13 forming a flow path penetrating in a horizontal direction and a paper corrugated fin 13 arranged in a vertical direction perpendicular to the fin 13 and forming a flow path penetrating in a vertical direction The fins 14 are alternately overlapped in the width direction (lateral direction), and are configured such that an air inlet opening at the outside air inlet 3 of the total heat exchanger 12 and an air inlet opening formed at the bottom opening inside the room. Are mounted with medium-performance filters 15 and 16 for removing invisible fine particles up to about 200 μm, respectively.

The case 2 on the bottom of the body case 2
A rectangular opening 2a is formed between A and the connecting body 2C, and the total heat exchanger 12 is inserted into the case main body 2 from below through the opening 2a. 1 and 4, the steps 2b, 2 of the case body 2
c, and a metal bracket 17 attached to the lower surface thereof is placed on the bottom surface of the connecting body 2C of the case main body 2 from below to fix three fixing screws 18 (see FIG. 2).
The total heat exchanger 12 is detachably attached to the case main body 2 by fastening the bracket 17 to the connecting body 2C. In addition, grips 19 are vertically provided at both ends in the width direction of the bottom surface of the total heat exchanger 12 so as to extend vertically downward.

The outside air inlet 3 formed in the case body 2 of the indoor ventilation unit 1 according to the present embodiment.
A repellent set 20 is detachably attached to the inside of the case body 2.

As shown in FIG. 6, the insect repellent set 20 is composed of a mounting member 21 integrally formed in a substantially cylindrical shape with a resin (self-digestible material) and a nylon insect repellent net held by the mounting member 21. 22 and the insect-proof net 2
Numeral 2 captures and collects foreign objects such as insects and dust visible outside and has a mesh larger than the meshes of the medium-performance filters 15 and 16. The insect net 22 can be replaced with a stocking for women.

A flange 21a as a stopper is integrally formed on the outer periphery of the mounting member 21. A part of the outer periphery is formed in accordance with the flat shape of the upper surface of the outside air inlet 3 of the case body 2. A flat surface 21c is formed.

The insect-controlling net 22 is formed as a funnel-shaped bag tapering toward the tip. The bag is passed through the inside of the mounting member 21 with the tapered tip first. The peripheral edge is folded outward, the folded portion is placed on the outer periphery of one end of the mounting member 21, and the ribbon-like spacer 23 made of neoprene rubber is wound therefrom and attached to the mounting member 21.

As shown in detail in FIG. 4, the insect repellent set 20 constructed as described above is connected to the outside air inlet 3 from inside the main body case 2 with the opening side of the insect repellent net 22 first. The insect repellent set 20 is inserted until the flange 21a of the mounting member 21 comes into contact with the step of the outside air inlet 3 (FIG. 4).
(To the right of), the insect repellent set 20 is positioned and mounted. At this time, the mounting member 21
The spacer 23 wound around the outer peripheral surface of the member is interposed between the mounting member 21 and the outside air intake 3 to hermetically seal the two.

Next, the operation of the indoor ventilation unit 1 according to the present embodiment will be described.

When the exhaust fan 8 and the air supply fan 9 incorporated in the indoor ventilation unit 1 are integrally driven to rotate,
Outdoor fresh outside air is introduced into the indoor ventilation unit 1 through an intake hose (not shown), and the outside air passes through the insect repellent set 20 while flowing through the outside air intake 3 of the indoor ventilation unit 1, and the insects contained therein are removed. Foreign matter such as visible dust is captured and removed by the insect net 22. In this case, since the insect repellent net 22 is formed of a funnel-shaped bag, the insects and dust caught by the insect repellent net 22 are collected at the funnel-shaped bottom, and are caught when the insect repellent set 20 is removed for maintenance. Insects and dust do not fly out of the insect net 22. Further, by making the insect-proof net 22 into a funnel-shaped bag, its area (the area through which outside air passes) becomes large, and clogging of the insect-proof net 22 can be suppressed, and the number of maintenance operations can be reduced.

As described above, the fresh air from which the foreign matter has been removed by the insect repellent set 20 is supplied to the medium-performance filter 15 provided at the air inlet of the total heat exchanger 12 as shown by an arrow in FIG. And flows through the total heat exchanger 12 in a horizontal direction after fine particles such as invisible pollen contained therein are removed by the medium-performance filter 15.

On the other hand, the dirty air in the room is purified by passing through a medium-performance filter 16 mounted on the bottom surface of the total heat exchanger 12 from an opening opening on the bottom surface of the indoor ventilation unit 1 and then, as shown in FIGS. As shown by arrows in FIG. 3, the gas flows from the lower part to the upper part in the total heat exchanger 12.

Therefore, in the total heat exchanger 12, a cross-flow of fresh outside air and dirty indoor air is generated, and the two flow through the corrugated fins 13 and 14 (see FIG. 3) to the temperature (heat) and humidity. (Moisture) is exchanged (total heat exchange), and fresh air that has undergone total heat exchange in this way is introduced into the air supply chamber S2 from the total heat exchanger 12, and the air supply chamber S2 is indicated by an arrow in FIG. As shown, the air flows substantially horizontally toward the air supply port 5 and is supplied from the air supply port 5 into the room through an air supply hose (not shown).

On the other hand, the room air which has been subjected to total heat exchange after passing through the total heat exchanger 12 is introduced from the total heat exchanger 12 into the exhaust chamber S1, and the exhaust chamber S1 is connected to the exhaust port as shown by an arrow in FIG. 4
, And is discharged from the exhaust port 4 to the outside through an exhaust hose (not shown).

While the above operation is continuously repeated, the room is ventilated. However, foreign substances such as visible insects and dust contained in the outside air are protected against insects before passing through the medium-performance filter 15. To be removed by set 20,
The medium-performance filter 15 is less likely to be clogged, the frequency of replacement thereof is suppressed, the number of troublesome maintenance operations is reduced, and the burden on the user is reduced.

Further, since the insect-controlling net 22 is formed of a funnel-shaped bag as described above, the area thereof (the area through which outside air passes) is increased, and clogging of the insect-controlling net 22 is suppressed to reduce the number of maintenance operations. Can be.

Then, the insect-proof net 22 of the insect-proof set 20
When the amount of foreign matter such as insects caught in the garbage reaches a certain level, it is necessary to remove the insect repellent set 20 from the outside air intake 3 of the indoor ventilation unit 1 and clean it. This is performed in the following manner. You.

That is, first, after the three fixing screws 18 fixing the total heat exchanger 12 are loosened and removed, the total heat exchanger 12 is slightly moved to the left in FIG. The engagement with the steps 2b and 2c of the main body case 2 is released. Then, as shown in FIG. 5, the total heat exchanger 12 can be taken out downward from the opening 2a of the case body 2 by holding the handle 19 protruding from the bottom surface of the heat exchanger 12, so that the bottom surface of the case body 2 Has an opening 2a.

Therefore, in the above state, the worker can open the case main body 2 through the opening 2a opened on the bottom of the case main body 2.
Put the hand inside and set the insect repellent set 20 toward you (arrow a in FIG. 5)
Pulling in the direction), the insect repellent set 20 can be easily removed indoors, and the insect repellent net 22 of the insect repellent set 20 can be cleaned or replaced.

Further, as described above, since the insect repellent net 22 is formed of a funnel-shaped bag, the insects and dust caught by the insect repellent net 22 are collected on the funnel-shaped bottom, and the insect repellent set 20 is removed during maintenance. When detached, the trapped insects and dust do not fly out of the insect net 22.

After the cleaning, the insect repellent set 20 is removed from the outdoor air inlet 3 of the indoor ventilation unit 1 in the reverse order.
Can be easily installed from the room.

That is, the cleaned insect repellent set 20 is inserted through the opening 2a opened on the bottom surface of the indoor ventilation unit 1, and is pushed inward (in the direction of the arrow b in FIG. 5) to remove the outside air inlet 3.
The insect repellent set 20 can be easily attached to the outside air inlet 3 from the inside of the case main body 2 indoors.

Then, as described above, the insect repellent set 20
Is attached, the total heat exchanger 12 is put into the case main body 2 through the opening 2a, and its corners are engaged with the steps 2b and 2c of the case main body 2 to position the total heat exchanger 12. Finally, if the total heat exchanger 12 is fixed to the main body case 2 with the three fixing screws 18, the total heat exchanger 12 and the insect repellent set 20 are assembled at predetermined positions as shown in FIG. Becomes operational again.

As described above, in the present embodiment, the insect repellent set 20 is configured to be detachable from the outside air inlet 3 of the indoor ventilation unit 1 from the inside of the main body case 2, so that the insect repellent set 20 can be easily installed from the room. In addition to being able to easily perform maintenance such as cleaning by attaching to and removing from the worm, foreign substances such as insects and dust visible by the insect control set 20 can be removed to prevent the medium-performance filter 15 from being clogged by the foreign substances. ,
The frequency of replacement of the medium-performance filter 15 can be kept low, and the maintenance performance thereof can be improved.

[0039]

As is apparent from the above description, the outside air introduced from the outside air intake opening to the main body case is purified by the filter and supplied to the room, and the air in the room is discharged outside the room. Since the insect repellent set is detachably attached to the outside air intake of the indoor ventilation unit that ventilates the room from the inside of the main body case to form the insect repellent structure of the indoor ventilation unit, the insect repellent set can be easily detached from the room, This has the effect of removing foreign matter such as insects and dust visible to prevent clogging of the filter due to the foreign matter and improving maintainability.

[Brief description of the drawings]

FIG. 1 is a side sectional view of an indoor ventilation unit provided with an insect repellent structure according to the present invention.

FIG. 2 is a cutaway perspective view of an indoor ventilation unit provided with an insect repellent structure according to the present invention.

FIG. 3 is a perspective view for explaining the operation of the total heat exchanger of the indoor ventilation unit having the insect-proof structure according to the present invention.

FIG. 4 is a partial cross-sectional view of the indoor ventilation unit when an insect-proof set is mounted.

FIG. 5 is a partial cross-sectional view of the indoor ventilation unit when the insect-proof set is detached.

FIG. 6 is a perspective view of an insect-proof set.

[Explanation of symbols]

 Reference Signs List 1 indoor ventilation unit 2 main body case 2a main body case opening 3 outside air intake 15, 16 medium-performance filter (filter) 20 insect repellent set 21 mounting member 22 insect repellent net

Claims (3)

[Claims] 1. An insect repellent set can be attached to and detached from the inside of a main body case at the outside air intake of an indoor ventilation unit for purifying the outside air introduced from an outside air intake opening to a main body case with a filter and supplying the same to a room. An insect repellent structure for an indoor ventilation unit, which is configured by being mounted. 2. The insect repellent structure for an indoor ventilation unit according to claim 1, wherein the insect repellent set includes an insect repellent net having a mesh larger than the filter and a mounting member for holding the mesh. 3. The insect repellent structure for an indoor ventilation unit according to claim 1, wherein the insect repellent net is formed of a funnel-shaped bag.