JPH08100985A - Refrigerator - Google Patents

Abstract

PURPOSE: To keep an airtightness as well as a heat-transfer insulation to improve a cooling efficiency. CONSTITUTION: In a refrigerator 3 inn which a main body 1 of the refrigerator is provided with an opening/closing door 5 for use in opening or closing a front surface-opening port 7 of the main body 1 of the refrigerator, an airtight means 21 for sealing over an entire circumference of the front surface-opening port 7 when the opening/closing door 5 is closed and keeping the inner side of the refrigerator in an airtight state and an adsorption means 27 installed at a position differing from that of the air airtight means 21 so as to cause the opening/ closing door 5 to come into contacted with the main body 1 of the refrigerator are provided and further an airtight region at the main body 1 of the refrigerator is formed by synthetic resin material 11 having a low thermal conductivity.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator in which heat can be surely prevented from leaking to the inside through a sealing area when the door is closed.

[0002]

2. Description of the Related Art Generally, cold air inside a refrigerator is sealed by an airtight means such as a gasket provided around the entire circumference of a door to prevent the cool air from directly leaking to the outside.

The outline of the airtight means is such that a hollow gasket which is elastically contacted with the open end of the refrigerator main body is attached over the entire circumference of the door, and a magnet is provided inside the hollow of the gasket. There is.

Therefore, when the door is closed, the magnet inside the gasket is attracted to the open end of the refrigerator body, the door is held in close contact with the body, and the airtight state inside the refrigerator is secured through the gasket. It is supposed to be done.

[0005]

As mentioned above, the door is
The closed state is maintained by the attraction by the magnet provided inside the gasket. On the other hand, since the airtight state is secured by the gasket, the suction area and the airtight area are at the same position.

For this reason, the refrigerator main body side, which is the airtight region and the suction region, is made of a metal that can be attracted by a magnet, and is generally formed of the same iron plate that forms the outer wall of the refrigerator.

Since the adsorption area formed of the iron plate has a shape of facing the inside of the refrigerator in addition to having good heat conduction, it is a factor that functions as a conduction means for guiding the heat outside the refrigerator to the inside of the refrigerator. .

Further, a pipe for preventing dew condensation through which a high-temperature working fluid flows is installed at the opening end of the refrigerator body, and heat from the pipe is introduced into the inside of the refrigerator through the adsorption area, which causes a problem in cooling efficiency. Is what was left.

Therefore, an object of the present invention is to provide a refrigerator in which heat from outside the refrigerator or heat from the pipe is surely prevented from entering the inside of the refrigerator.

[0010]

To achieve the above object, the present invention relates to a refrigerator in which a refrigerator body is provided with an opening / closing door for opening and closing a front opening of the refrigerator body. An airtight means that seals the entire circumference of the mouth to keep the inside of the refrigerator airtight, and a suction means that is provided at a position different from the airtight means and that closes the opening / closing door to the refrigerator body are provided in different areas. .

As a preferred embodiment, the airtight region on the refrigerator main body side, which is sealed by the airtight means, is made of a synthetic resin material having a low thermal conductivity. Alternatively, the adsorption means is provided at a position separated from the main body material forming the outer wall surface of the refrigerator via the heat conduction blocking member.

[0012]

According to such a refrigerator, by closing the opening / closing door, the opening / closing door is brought into close contact with the refrigerator main body by the suction means, the closed state is maintained, and the entire circumference of the front opening is sealed by the airtight means. The airtight state inside is secured.

When the door is closed, the suction means is
Since it is provided at a position away from the main body material on the outer wall of the refrigerator via the heat conduction blocking member, the amount of heat outside the refrigerator and heat from the dew-proof pipe at the open end of the refrigerator main body is extremely small. .

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be specifically described below with reference to the drawings of FIGS.

In FIG. 1, reference numeral 1 is a refrigerator body of the refrigerator 3,
Reference numerals 5 respectively indicate opening and closing doors for opening and closing the front opening 7 of the refrigerator main body 1, and the opening and closing door 5 is supported openably and closably via one hinge (not shown).

The refrigerator main body 1 has a closed section formed by an iron plate material 9 on the outside and a synthetic resin material 11 having a low thermal conductivity on the inside, and a dew condensation prevention pipe 13 is provided inside and a heat insulating material (illustrated in the figure). Not) is supposed to be filled.

At the joint between the outer iron plate material 9 and the inner synthetic resin material 11, the iron plate material 9 is subjected to a hemming process having an engagement step portion 15 that is bent and folded back toward the inside. Further, the synthetic resin material 11 is continuously molded integrally so as to engage with the engaging stepped portion 15 of the iron plate material 9 to form the opening end surface 11a of the front opening 7 and the interior surface 11b in the refrigerator.

A synthetic resin interior material 19 is attached to the inside of the opening / closing door 5, a gasket 21 serving as an airtight means is provided on the outer periphery of the interior material 19, and a magnet 23 is provided at a position distant from the gasket 21. Are provided respectively.

The gasket 21 is made of an elastically deformable material such as rubber or synthetic resin, and has a main hollow chamber 21a and a sub hollow chamber 21b that elastically contact the open end surface 11a of the synthetic resin material 11, and an opening / closing door 5. And a mounting hook portion 21c that is fitted and fixed in the mounting hole.

Incidentally, the sub hollow chamber 21 of the gasket 21
b may have a deformed shape as shown in FIGS. 4 and 5, and is not necessarily limited to the shape of FIG.

The magnet 23 is attached inside the interior material 19. On the other hand, at a position facing the magnet 23, a magnet 25 attracting each other is attached inside the synthetic resin material 11 on the refrigerator body 1 side, and the magnet 25 on the refrigerator body 1 side and the magnet 23 on the opening / closing door 5 side.
And constitute the suction means 27.

Each of the magnets 23 and 25 may be in the shape of continuous strip plates, or may be provided at a predetermined interval.

The dew condensation prevention pipe 13 is arranged along the iron plate 9 side of the refrigerator main body 1. As shown in FIG. 6, one end of the dew condensation prevention pipe 13 is at the inlet side of the dryer 27 and the other end is
The working fluid, which is respectively connected to the discharge side of the condenser 29 and is discharged from the compressor 31, flows to the condenser 29 → condensation prevention pipe 13 → dryer 27 → differential pressure valve 33 → evaporator 35,
A refrigeration cycle for returning to the compressor 31 again is configured.

According to the refrigerator 3 thus constructed, the magnets 23, 25 are closed by closing the opening / closing door 5.
The two are attracted to each other and the closed state of the open / close door 5 is maintained.
On the other hand, the gasket 21 is the opening end surface 1 on the refrigerator body 1 side.
By making elastic contact with 1a, the airtight state in the refrigerator can be secured.

When the opening / closing door 5 is closed, the open end surface 11a elastically contacting the gasket 21 is conducted by the synthetic resin material 11 having a low thermal conductivity to the outside of the refrigerator and the heat from the dew condensation preventing pipe into the refrigerator. The amount of cooling is extremely small and an efficient cooling state can be obtained.

[0026]

As described above, according to the present invention, the airtight region reliably seals the inside and the outside of the refrigerator, and the heat of the outside or the condensation prevention pipe is blocked from the inside of the refrigerator. It becomes possible to obtain a heat conduction cutoff state,
The cooling efficiency can be improved.

[Brief description of drawings]

FIG. 1 is an enlarged sectional view taken along the line AA of FIG. 2 showing a main part according to the present invention.

FIG. 2 is a perspective view of the refrigerator according to the present invention.

FIG. 3 is a sectional view of the gasket.

FIG. 4 is a sectional view similar to FIG. 3 showing a modified example of the gasket.

FIG. 5 is a sectional view similar to FIG. 3, showing another modified example of the gasket.

FIG. 6 is an explanatory diagram of a dew condensation prevention pipe and a refrigeration cycle.

[Explanation of symbols]

 1 Refrigerator main body 3 Refrigerator 5 Opening / closing door 7 Full opening 11 Synthetic resin material 21 Gasket (airtight means) 27 Magnet (adsorption means)

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yuko Hongo 8 Shinsita-cho, Isogo-ku, Yokohama-shi, Kanagawa, Ltd. Inside Toshiba Living Space Systems Engineering Laboratory (72) Inventor, Atsushi Kusunoki 8 Shinsugita-cho, Isogo-ku, Yokohama, Kanagawa Banchi Co., Ltd. Toshiba Living Space Systems Engineering Laboratory

Claims (3)

[Claims] 1. A refrigerator in which an opening / closing door for opening / closing a front opening of the refrigerator main body is provided in the refrigerator main body, and when the opening / closing door is closed, a seal is provided over the entire circumference of the front opening to keep the inside of the refrigerator airtight. A refrigerator provided with a means and an adsorbing means which is provided at a position different from the airtight means and which causes the opening / closing door to come into close contact with the refrigerator body. 2. The refrigerator according to claim 1, wherein the airtight region on the refrigerator main body side, which is sealed by the airtight means, is formed of a synthetic resin material having a low thermal conductivity. 3. The refrigerator according to claim 1, wherein the adsorbing means is provided at a position separated from the main body material forming the outer wall surface of the refrigerator via a heat conduction blocking member.