JPS6111581A - Refrigerator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention provides a refrigerator, in particular a freezing room divided into a freezing chamber, and forcibly circulates cold air to quickly freeze the items to be cooled in the freezing room. This is related to the refrigerator.

[Background of the invention]

In conventional refrigerators of this type, for example, the one described in Japanese Utility Model Application Publication No. 15971/1983, the freezing room, which is divided into sections within the freezing chamber, is designed so that the bottom plate and the lid are brought into contact to form a box-shaped space. It is composed of

In such a structure, a through hole is made in the bottom plate or a gap is formed at the top of the lid for cold air to flow out, but when the item to be cooled is stored inside the freezing room, No consideration was given to speeding up the flow of cold air. For this reason, the bottom plate and the lid act as resistance, and there is a problem in that a sufficient amount of cold air cannot flow through.

[Purpose of the invention]

It is an object of the present invention to solve the above-mentioned conventional problems and to provide a refrigerator that freezes items to be cooled quickly.

[Background of the invention]

In order to achieve the above, the present invention provides a cold air forced circulation type refrigerator having a freezing room divided into a freezing chamber, characterized in that a vent is formed between a bottom plate and a lid constituting the freezing room. It is something.

[Embodiments of the invention]

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

Among the reference numerals shown in FIGS. 1 to 5, the same reference numerals indicate the same or corresponding parts.

In Fig. 1, ■ is the refrigerator body, 2 is a freezer compartment partitioned by a partition wall 1a in the refrigerator body 1, 3 is an evaporator installed on the right side of the freezer compartment 2, and 4 is an upper part of the evaporator 3. The installed fan 5 is a freezer compartment bottom plate that is installed at the bottom of the freezer compartment 2 and has a freezer suction port 6. Between this bottom plate 5 and the partition wall 1a, there is an air passage 7 that communicates with the evaporator 3. is formed.

A side plate 8 is provided inside the evaporator 3 and the fan 4, and a ventilation path 9 is formed between the side plate 8 and the evaporator 3 and the fan 4. 10a and 10b, ], C1
Reference character c denotes a freezing room outlet and a freezing room outlet provided at the upper and lower parts of the side plate 8, respectively. The freezing room 11 is constituted by a freezing room bottom plate 2 fixed to the inner surface of the side plate 8 and above the freezer outlet 10b, and a lid 13 attached to the inner wall of the refrigerator body 1. There is. 14 is a vent formed between the bottom plate 12 and the lid 13; 15 is the bottom plate 12;
] The item to be cooled is placed on the second side.

Next, the operation of the first embodiment configured as described above will be explained.

Most of the cold air from fan 4 is generated by freezing glue 13.
Air outlet 1. It flows into the freezing room 11 from Oa, and the main flow of this inflowing cold air flows inside the freezing room 11 as shown by the arrow and flows out into the freezing room 2 from the vent 14. At this time, the flow velocity of the cold air flowing near the article to be cooled 15 is faster than in the conventional example.

On the other hand, in the freezer compartment 2, in addition to the cold air flowing from the ventilation 1] 14, a part of the cold air generated by the fan 4 flows through the ventilation passage 9.
is distributed to the freezer compartment air outlet 10b.

] Flows in from Oc. After cooling each part of the freezer compartment 2, these two types of cold air flow into the ventilation passage 7 from the freezer compartment suction port 6, flow through this ventilation passage 7 to the evaporator 3, and after being cooled here, are again Air is blown and circulated by the fan 4. While such circulation action is repeated, the cooled product 15
The bottom surface 15a of is cooled by the cold air in the freezer compartment 2 via the bottom plate 12.

Of course, if the bottom plate 12 is made of a good thermal conductor, the effect can be further improved.

The second embodiment shown in FIG.
2) At least one pair of protrusions 12a and +2a are integrally formed with appropriate spacing between them, and an intermediate outlet 10b is provided in the side plate 8 at a position slightly above the portion of the bottom plate 12 that is fixed to the side plate 8. A gap 16 is provided between the bottom surface 1.5a of the article to be cooled 15 placed on the protrusion 12a and the bottom plate 12.
The cold air flowing out from the intermediate air outlet into the freezing room 11 flows through the gap 16. The rest of the structure is the same as that of the first embodiment (FIG. 1), so a description thereof will be omitted.

With this configuration, the cold air flowing out from the upper air outlet 10a into the freezing room 11 mainly cools the upper part of the cooled items 15, and then flows out into the freezing room 2 from the vent 14, as shown by the solid arrow line. On the other hand, intermediate outlet 1
The cold air flowing out from 0b mainly cools the lower part of the article 15 to be cooled, and then flows out from the vent hole 6 into the ventilation path 7.

As described above, according to the second embodiment, the amount of cold air around the item 15 to be cooled can be increased compared to the conventional example, so that the item 15 to be cooled can be cooled more quickly.

In the third embodiment shown in FIG. 3, the freezing room bottom plate 12 in the first embodiment is replaced with a shelf board 17 having an arbitrary number of openings 17a, and the shelf board 17 and the lid 13 are joined to each other.
This is different from the first embodiment in that the ventilation port 14 of the embodiment is eliminated, the intermediate outlet 10b of the side plate 8 is eliminated, and a cold air guide 18 that rotates around a fulcrum 19 is provided in the freezing room 11. However, since the other structures are the same, the explanation will be omitted.

With this configuration, the cold air flowing into the freezing hole 1111 from the upper air outlet Oa flows around the cooled product 15 as shown by the arrow and solid line, and flows through the opening 1 of the shelf board 17.
Since it flows out into the freezer compartment 2 from 7a, cooling efficiency can be improved. On the other hand, if there is no cold air guide plate 18, the main flow of cold air will flow to the cooled product 15, as shown by the broken arrow line.
Since the cooling efficiency of the cooled product 15 may be significantly reduced, the cooling efficiency of the cooled product 15 may be significantly reduced.

In the fourth embodiment shown in FIG. 4, the inner surface (
The third embodiment differs from the third embodiment (FIG. 3) in that an arbitrary number of fins 19 are attached to the rear surface (the back surface), and the other structures are the same, so a description thereof will be omitted. With this configuration, the upper air outlet 1
．． The cold air flowing into the freezing room 11 from 0a flows as shown by the solid arrow line 20 by the fins 19 of the cold air guide plate 18, and hits the cooled items 15 even more strongly, so that the cooling effect can be further improved. can.

The fifth embodiment shown in FIG. 5 differs from the fourth embodiment in that the cold air guide plate 18 rotatably provided in the freezing room 11 is divided into two guide plates +8a and 18b via a node 21.
Unlike FIG. 4), the other structures are the same, so a description thereof will be omitted.

With this configuration, the cold air guide plate 18 is connected to the cooled product 15.
Because it can be formed large to adapt to the size of
Since cold air flows near the cooled product 15 as shown by the solid arrow line 22, the cooling efficiency can be further improved.

〔Effect of the invention〕

As explained above, according to the present invention, by increasing the flow velocity of the cold air flowing around the cooled item, the heat transfer coefficient of the cold air is improved and the amount of heat dissipated from the cooled item is increased. , it is possible to speed up the freezing of the items to be cooled.

Therefore, it is possible to maintain high quality of food.

[Brief explanation of drawings]

1 to 5 are side sectional views of the freezer compartment of each embodiment of the refrigerator of the present invention. 2...Freezing room, 11...Freezing room, 12
... Atsushi Figure 1 Z (2) Figure 3 Figure χ4 Figure

Claims (1)

[Scope of Claims] 1. A cold air forced circulation refrigerator having a freezing room divided into a freezing chamber, characterized in that a vent is formed between a bottom plate and a lid constituting the freezing room. . 2. At least a pair of protrusions are integrally formed on the bottom plate of the freezing room with appropriate spacing, and a ventilation path is formed between the article to be cooled placed on these protrusions and the bottom plate. A refrigerator according to claim 1.