JP3061725U - Ventilator for compartment - Google Patents

Abstract

(57) [Summary] [Problem] To have good responsiveness to pressure fluctuation inside a compartment,
Provided is a ventilator device for a compartment which does not have a problem of generating noise when the valve is opened and closed. SOLUTION: A side wall 6 of a compartment 10 is provided with an opening 9 penetrating inside and outside, a short cylindrical base 1 made of plastic is fitted into the opening 9, and a cover having a vent hole 7 on the outer surface side of the base 1 is provided. 2, a vent hole 4 is provided in the downwardly inclined inner bottom wall portion 1a of the base 1, and a valve plate 3 made of silicone rubber for closing the vent hole 4 from the outer surface side is provided at the upper end portion with the inner bottom wall portion 1a.
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Description

[Detailed description of the invention]

[0001]

[Technical field to which the present invention pertains] The present invention is installed on the side wall of a compartment such as a refrigerator, a freezer or a cold storage, and reduces the air inside the compartment to reduce the sudden increase in internal pressure when the door is closed or when adjusting the room temperature. The present invention relates to a ventilator device for a compartment that discharges to a room.

[0002]

2. Description of the Related Art As disclosed in Japanese Patent Publication No. 2506036, a conventional ventilator device for a compartment includes an aluminum cylindrical casing fitted into an opening penetrating inside and outside of a side wall of the compartment, and the casing. A partition wall made of aluminum that is fitted into the partition wall to block the air inside and outside of the compartment, and a first valve plate made of aluminum that is arranged on the outer surface side of the partition wall and opens and closes the first ventilation hole A second valve plate made of aluminum, which is disposed on the inner surface side of the partition wall and opens and closes the second ventilation hole, and a shaft hole at each central portion of the partition wall, the first valve plate and the second valve plate. It is composed of an aluminum shaft rod slidably fitted and a biasing coil spring fitted to the shaft rod.

However, in the conventional device configured as described above, the first valve plate and the second valve plate contact the partition wall plate by spring bias when opening and closing the first vent hole and the second vent hole. The noise at the time of collision cannot be ignored, which hinders the quietness of the surrounding environment. In addition, since each valve plate is constantly biased in the closing direction by a spring, the response to pressure fluctuations inside the compartment is affected by the set spring pressure, and the valve plate may not operate when the pressure increases slightly. .

[0004]

[Problem to be Solved by the Invention] Accordingly, an object of the present invention is to provide a ventilator for a compartment which has a good response to the pressure fluctuation in the compartment and does not have a problem of generating noise when the valve is opened and closed. .

[0005]

Means for Solving the Problems Hereinafter, with reference to the reference numerals in the accompanying drawings, in the ventilator apparatus for a compartment of the present invention, an opening 9 which penetrates the inside and outside of the side wall 6 of the compartment 10 is provided. A short cylindrical base 1 made of plastic is fitted into the opening 9, and the outer surface of the base 1 is covered with a cover 2 having a ventilation hole 7, and the base 1 is passed through a downwardly inclined inner bottom wall 1 a. An air hole 4 is provided, and a silicone rubber valve plate 3 for closing the air hole 4 from the outer side is fixed to the inner bottom wall 1a at the upper end.

When the internal pressure of the compartment 10 increases, as shown in FIG. 6, the valve plate 3 is pushed up about the upper end 3 a fixed to the inner bottom wall 1 a of the base 1, and the inner bottom wall 1 a The air in the compartment that has passed through the ventilation hole 4 is discharged to the outside of the compartment through the ventilation hole 7 in the cover 2. When the internal pressure of the compartment 10 decreases due to the discharge of the air, the valve plate 3 moves downward by its own weight, and closes the ventilation hole 4 of the inner bottom wall 1a again.

Since the inner bottom wall 1 a of the base 1 is formed to be inclined downward, the valve plate 3 made of silicon rubber adheres to the outer surface of the inner bottom wall 1 a by its own weight, and the inner air of the compartment 10 and the outer air It reliably shuts off the air in the compartment and prevents the escape of cold heat in the compartment.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION In the illustrated embodiment, an ABS resin base 1 is formed in a short cylindrical shape having a rectangular cross section, and an inner bottom wall 1a is formed in two stages, upper and lower. Six ventilation holes 4 are provided. One upper and lower horizontally long valve plate 3 that simultaneously closes the six ventilation holes 4 is fixed to the inner bottom wall 1a by fasteners 5 such as rivets. The cylindrical frame 8a of the mounting plate 8 is fitted into the opening 9 of the side wall 6 from the inside.

[0009]

As described above, in the present invention, since the base 1 is made of plastic resin and the valve plate 3 is made of silicon rubber, the contact generated when the vent hole 4 of the inner bottom wall 1a is opened and closed. The sound is suppressed to a negligible low level and does not impede the quietness of the surrounding environment. Further, since the valve plate 3 made of silicon rubber is flexible, the response to the pressure fluctuation in the compartment 10 is good, and the vent hole 4 is opened and closed even by a small pressure fluctuation, and the pressure in the compartment is adjusted to a predetermined pressure range. Can be accurately maintained within.

[Brief description of the drawings]

FIG. 1 is a front view of a ventilator device for a compartment according to an embodiment of the present invention.

FIG. 2 is a left side view of the compartment ventilator device.

FIG. 3 is a rear view of the compartment ventilator device.

FIG. 4 is a cross-sectional view taken along the line AA of FIG. 1, showing a state of attachment to a side wall of the compartment.

FIG. 5 is a sectional view taken along line BB of FIG. 4;

FIG. 6 is a cross-sectional view corresponding to FIG. 4, showing a state where the internal pressure of the compartment has increased.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base 2 Cover 3 Valve body 4 Vent hole 5 Fixing tool 6 Side wall 8 Mounting plate 9 Opening 10 Compartment

Claims (1)

[Utility model registration claims] 1. A side wall 6 of a compartment 10 is provided with an opening 9 penetrating inward and outward, a short cylindrical base 1 made of plastic is fitted into the opening 9, and a vent hole 7 is formed on the outer surface side of the base 1. A vent hole 4 is provided in a downwardly inclined inner bottom wall portion 1a of the base 1 which is covered with a cover 2, and a silicone rubber valve plate 3 for closing the vent hole 4 from the outer surface side is provided at an upper end portion of the inner bottom wall portion. 1a
A ventilator device for the compartment fixed to the room.