A condominium or a room in a detached house

Abstract

To solve the problems that there is high cost of materials and construction due to the installation of two air supply ports for ventilation at the time when a differential pressure airflow occurs due to 24-hour ventilation between the air supply ports and a range hood, and that there are an unsightly appearance and restrictions on the arrangement of indoor furniture due to the installation of the two air supply ports.SOLUTION: The present invention is an air supply port for ventilation that is attached to a wall facing outside air between the indoor and outdoor areas of an apartment or a detached house, where a differential pressure opening / closing flap is provided in the air supply port that automatically opens and closes as airflow is generated due to the differential pressure between the indoor and outdoor areas; a gap for 24-hour ventilation is provided at either the top, bottom, left or right end of the differential pressure opening / closing flap; and one air supply port has two functions of: air supply for ventilation at the time when a differential pressure airflow occurs due to the operation of a range hood, etc.; and 24-hour ventilation.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to an air supply port that opens and closes depending on the presence or absence of differential pressure airflow during the operation of a range hood inserted into a mounting hole provided on the outer wall of an apartment or a detached house, and an air supply port device having two different functions of ventilating for 24 hours.

Background Art

[0002] Due to the Building Standards Law and other reasons, rooms are required to be in a state where they can be ventilated for 24 hours. Therefore, an air supply port for 24-hour ventilation is provided on the outer wall for ventilation. However, when the range hood is operated and differential pressure airflow is generated during cooking, for example, as shown in the publication of Registered Utility Model No. 3019274, a differential pressure type ventilation port that pushes open an elastic body with improved closing property for ventilation is provided as another air supply port.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, since the differential pressure type ventilation port in the publication remains closed when there is no differential pressure between the inside and outside due to the operation of the range hood, there is a problem that 24-hour ventilation in the normal state cannot be performed.

[0005] Therefore, two air supply ports, one for 24-hour ventilation and the other for functioning during the operation of the range hood, are provided on the outer wall of the living and dining area.

Means for Solving the Problems

[0006] The present invention is a fresh air inlet for ventilation attached to the outer walls of all rooms in apartments and detached houses. It has a differential pressure opening and closing flap that automatically opens when an air current is generated by the differential pressure between the inside and outside of the room, and a ventilation gap (clearance) is provided between any of the upper, lower, left, and right ends of the differential pressure opening and closing flap and the fresh air inlet. When a differential pressure is generated between the inside and outside of the room due to the operation of the range hood, one fresh air inlet combines the two functions of ventilation fresh air supply and 24-hour ventilation fresh air supply when the range hood and the like are not in use, so as to solve the problems.

Effect of the Invention

[0007] The present invention combines the two functions of range hood operation and 24-hour ventilation fresh air supply at one fresh air inlet, resulting in the effect that the costs such as the material cost and construction cost of the fresh air inlet can be reduced by half.

[0008] Having only one fresh air inlet can improve the appearance of the wall and reduce the constraints on the placement of furniture and the like.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Figure 3

Explanation of Reference Numerals

[0010] 1 is a mounting cylinder 1a is a flange portion 2 is a pipe hood 2a is a louver 2b is a cover 3 is a register 4, 4 are differential pressure opening and closing flaps 4a, 4a are support shafts having a closing tendency 5 is a gap (clearance) 6 is a cover of the register 7 is the air inlet H is the wall hole

Embodiment for Carrying Out the Invention

[0011] The present invention is an air inlet for ventilation that is attached to an outer wall facing the outside air of a room in an apartment or a detached house, and is provided with a differential pressure opening and closing flap that automatically opens when an air flow is generated by the differential pressure between the inside and outside of the air inlet, and a gap for 24-hour ventilation is provided at any of the upper, lower, left, and right ends of the differential pressure opening and closing flap, so as to have two functions: supply air for ventilation when a differential pressure is generated by the operation of a range hood or the like, and 24-hour ventilation function when the range hood or the like is not in use.

Example

[0012] The first embodiment will be described below with reference to FIGS. 1 and 2. FIG. 1 shows a cylindrical mounting cylinder 1 that is inserted and fixed into a wall hole, a pipe hood 2 that is inserted outside the mounting cylinder 1 on the outdoor side, and a register 3 that is inserted inside the mounting cylinder 1 on the indoor side, each in a separate state before installation.

[0013] The mounting cylinder 1 has a flange portion 1a for fixing to the outside of the wall, and the pipe hood 2 is provided with a louver 2a for preventing the intrusion of rainwater and dust and a cover 2b that covers the entire outer surface. The register 3 that is inserted into the mounting cylinder 1 from the inside is provided with a pair of left and right differential pressure opening and closing flaps 4, 4 that are supported by support shafts 4a, 4a having a closing tendency in the central portion, and gaps 5, 5 for 24-hour ventilation are provided at the left and right ends of the differential pressure opening and closing flaps 4, 4. 6 is a lid provided on the indoor side of the register 3. The air inlet 7 composed of the above three members is configured to be substantially rectangular in cross-section, but may also be circular.

[0014] FIG. 2 shows the usage state in which the air inlet 7 composed of the above three members is assembled into a wall hole H facing the outside air. FIG. 2(a) shows the state of 24-hour ventilation in which no differential pressure air flow is generated, and FIG. 2(b) shows the state in which a differential pressure air flow is generated and the differential pressure opening and closing flaps 4, 4 are opened to enlarge the gaps 5 (ventilation paths).

[0015] Regarding 24-hour ventilation, in terms of industry operation, it is sufficient to install an air supply opening of 100φ (78.5 cm 2 ) in one room (about 8 to 20 tatami mats), and when using a gas stove such as a range hood, 150φ (176.625 cm 2 ) is to be used.

[0016] Therefore, in the state of Fig. 2(a), calculate the values of the ventilation resistance due to the capacity of the cylinder of the air supply opening 7, the ventilation resistance due to the members of the louvers 2a and the cover 2b in the pipe hood 2, and the support members including the lid 6 of the register 3, respectively. Furthermore, by conducting an actual object test, determine the cross-sectional area of the gaps 5, 5 so that 24-hour ventilation corresponding to 100φ (78.5 cm 2 ) can be performed.

[0017] And as shown in Fig. 2(b), when operating a range hood (not shown) installed to discharge carbon dioxide gas, water vapor, odor, heat, etc. from a cooking appliance using fire, in order to supplement the large amount of discharged air, air supply from the outside is required. As a result, when the indoor air pressure decreases and a differential pressure air flow occurs between the indoor and the outdoor, the differential pressure opening and closing flaps 4, 4 rotate and open against the closing tendency, and the gaps 5, 5 are enlarged and automatically switched to the air supply for ventilation corresponding to 150φ (176.625 cm 2 ).

[0018] In addition, the mounting cylinder 1 may be an inclined pipe with a higher inner part and a lower outer part to prevent water leakage into the wall surface, and the lid 6 of the register 3 may be made closable to prevent blowing into the room during strong winds such as typhoons.

Example

[0019] FIG. 3 is an explanatory view showing other embodiments. FIG. 3(1) shows an example in which differential pressure opening / closing flaps 4 and 4 are provided vertically. FIG. 3(2) shows an example in which a gap 5 is provided on the free end side of a single differential pressure opening / closing flap 4 that rotates about a fulcrum on one side, either vertically or horizontally. FIG. 3(3) shows an example in which a plurality of differential pressure opening / closing flaps 4 are provided in the middle, either vertically or horizontally, and gaps 5 for 24-hour ventilation are provided between each flap 4 and on the vertical or horizontal sides. FIG. 3(4) shows an example in which a gap 5 for 24-hour ventilation by a fixed louver is provided on about half of the side, either vertically or horizontally, and a single differential pressure opening / closing flap 4 is provided in the remaining part.

[0020] In any case, when the differential pressure opening / closing flap 4 is closed, ventilation through the gap 5 provides 24-hour ventilation equivalent to 100φ (78.5 cm 2 ) When a differential pressure is generated by the operation of the range hood, ventilation equivalent to 150φ (176.625 cm 2 ) is performed at one air supply port by the opening of the differential pressure opening / closing flap 4.

Industrial Applicability

[0021] The present invention is widely used by having a single air supply port for ventilation.

Claims

【Claim 1】 An apartment or a detached house living room, comprising: a wall facing the outside air; a supply air inlet for ventilation attached to the wall; and the supply air inlet is provided with a differential pressure opening and closing flap inside the supply air inlet that automatically opens and closes according to the presence or absence of differential pressure airflow caused by the operation of a range hood, and a ventilation gap is provided at any of the upper and lower or left and right ends of the differential pressure opening and closing flap, so that when differential pressure airflow is generated due to the indoor air pressure becoming lower than the outdoor air pressure by the operation of the range hood in one supply air inlet, it has both the function of supplying air into the living room for ventilation and the 24-hour ventilation function of the ventilation capacity compliant with the Building Standards Law for the living room. A living room of an apartment or a detached house characterized by this.

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