JP2702782B2 - refrigerator - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator having a sealed vegetable container for storing vegetables in a fresh state for a long time.

2. Description of the Related Art In recent years, there has been proposed a configuration in which a vegetable compartment of a refrigerator is stored in a vegetable container at a high humidity for a long period of time by keeping the inside of the vegetable container at a high degree of tightness (NR manufactured by Matsushita Electric Industrial Co., Ltd.).
-D37V1 ... Released in April 1989).

The outline of the NR-D37V1 will be described below with reference to the drawings. FIG. 2 is a sectional view of a conventional refrigerator. Reference numeral 1 denotes a three-door refrigerator body, which is composed of an outer box 2, an inner box 3, and a urethane foam insulating material 4 formed in a gap between the two boxes. Three doors 5, 6, 7 are provided at the front opening of the refrigerator body 1. Are arranged. The three doors are provided corresponding to the openings of the freezer compartment 8, the refrigerator compartment 9, and the vegetable compartment 10 of the refrigerator body 1, respectively. The partition wall surrounded by the bottom plate 11 of the freezer compartment 8 and the top plate 12 of the refrigerator compartment 9 has an evaporator 13 and a fan 14 inside the compartment behind the evaporator. Ventilation passages 15 and 16 are formed in the back of the freezer compartment 8 and the upper portion of the back of the refrigerator compartment 9 for introducing cooling air from the evaporator 13 into each compartment. 17 is the freezer room 8
, 18, 19, and 20 are net shelves of the refrigerator compartment 9, 21 is a meat tray, and 22 is a compressor.

Next, the vegetable room 10 will be described in detail. Vegetable room
Reference numeral 10 is located below the refrigerator compartment 9 and is separated from the refrigerator compartment 9 by a partition plate 23. The vegetable compartment 10 has a vegetable storage container 24 that can be opened and closed and pulled out integrally with the vegetable compartment door 7, and a lid 25 that is in close contact with the upper opening of the container 24 when the container is stored in the vegetable compartment 10. doing. This lid 25 has several through holes
This is a plastic molded product having 25a, and a moisture-permeable film 26 is integrally molded so as to cover the through hole 25a. With such a configuration, the vegetable compartment 10 is maintained at a moderately high humidity.
The vegetable compartment 10 circulates the cool air A in the refrigerator compartment adjusted by the temperature control damper 27 of the refrigerator compartment 9 around the container 24 through ventilation holes 23a provided before and after the partition plate 23. The fruits and vegetables 28 were cooled indirectly to maintain an appropriate temperature. By maintaining high humidity at an appropriate temperature as described above, it has been devised that the fruits and vegetables 28 can be stored for a long period of time.

However, the vegetable compartment 10 of the refrigerator 1 is a closed room as described above, and the cold air A in the refrigerator compartment is supplied to the vegetable storage container.
Because the fruits and vegetables 28 are indirectly cooled by circulating around 24,
When fruits and vegetables having a high product temperature are stored or when the vegetable room door 7 is frequently opened and closed, there is a problem that it takes a long time for the stored fruits and vegetables 28 to reach an appropriate temperature. In order to extend the storage period of fruits and vegetables, it is desirable to cool the product temperature to an appropriate temperature as quickly as possible, but the conventional refrigerator 1 has the above-mentioned problems.

In view of the above problems, the present invention provides a refrigerator capable of storing fruits and vegetables for a longer period of time by rapidly cooling the inside of a conventional closed-type vegetable storage container and quickly lowering the temperature of the stored fruits and vegetables to an appropriate temperature. It is the purpose.

Means for Solving the Problems In order to solve the above-mentioned problems, the refrigerator of the present invention is provided with a ventilation path on the refrigerator back wall that communicates cool air from a fan inside the refrigerator to the vegetable room, and the refrigerator room has a closed type vegetable storage container. A cool air discharge port is provided on the back wall, a cool air suction port is provided on the back of the closed type vegetable storage container, and a damper having a thermosensitive element is provided on the cool air discharge port and the cool air suction port.

Action The present invention, by the above-described configuration, into a conventional closed-type vegetable container, inhales cold air until the temperature drops to a predetermined temperature, rapidly cools the fruits and vegetables in the vegetable container, quickly lowers the product temperature to an appropriate temperature,
It enables long-term preservation of fruits and vegetables more than before.

Embodiment Hereinafter, a refrigerator according to an embodiment of the present invention will be described with reference to the drawings. The same components as those in the conventional example are denoted by the same reference numerals, and description thereof will be omitted.

FIG. 1 shows a sectional view of a refrigerator, wherein 29 is a refrigerator main body, 30 is a ventilation passage provided on a back wall of a refrigerator compartment, 31 is a cool air discharge port provided on a back wall of a vegetable compartment, and 32 is a thermosensitive element. A damper 32a, a cold air inlet 33 provided on the back of the vegetable storage container 24, and a damper 34 having a heat-sensitive element 34a disposed in the cold air inlet 33 are provided. The ventilation passage 30 introduces a part of the cool air cooled by the evaporator 13 by the in-compartment fan 14 to the vegetable compartment 10 side. Further, the two thermal elements 32a, 34a
Is a coil spring made of a shape memory alloy, which shrinks when the temperature of the vegetable compartment 10 rises to open the two dampers 32 and 34,
When the temperature of the vegetable compartment 10 becomes lower than a predetermined temperature (3 to 5 ° C.), the coil spring extends and closes the two dampers 32 and 34,
The cool air discharge port 31 and the cool air suction port 33 are disposed so as to close each other.

With the above configuration, a vegetable 28 having a high product temperature (especially in summer) is placed in the vegetable compartment 10 and the temperature inside the vegetable compartment 10 increases due to the respiratory heat of the fruit or vegetable.
If the temperature inside the vegetable compartment 10 rises due to the opening and closing of
The damper 32 of the cool air discharge port 31 and the damper 34 of the cool air suction port 33 are opened, and the cool air B cooled by the evaporator 13 is introduced into the vegetable storage container 24 by the in-compartment fan 14. Therefore, when the temperature of the vegetable compartment 10 rises, the inside of the hermetically sealed vegetable storage container 24 is cooled more rapidly than when only the cold air A in the refrigerator compartment 9 is circulated to the vegetable compartment 10 as in the prior art. You. That is, since the cool air is directly applied to the fruits and vegetables 28 stored in the container 24, the product temperature can be prevented from being lowered immediately.
When the temperature reaches an appropriate temperature, the two heat-sensitive elements 32a and 34a, which are coil springs made of the shape memory alloy, work to cool the cold air discharge port 31 and the cold air suction port 33 by the dampers 32 and 34, respectively.
And the fruits and vegetables 28 in the hermetically sealed vegetable storage container 24 are indirectly cooled only by the circulating cold air A from the refrigerator compartment 9 to maintain an appropriate temperature and an appropriate humidity. Therefore, high-temperature fruits and vegetables 28
Even if it is stored, the temperature of the product can be reduced more rapidly than before, and the respiratory action and transpiration of the fruits and vegetables 28 in the initial stage of storage are promptly suppressed, so that the subsequent storage period can be further extended than before. Become. In addition, besides the shape memory alloy, bellows filled with a gas often used for a conventional refrigerator compartment damper may be used for the heat sensitive elements 32a and 34a.

Effect of the Invention As described above, the refrigerator of the present invention is arranged such that a ventilation path for passing cool air from an internal fan to the vegetable compartment is provided on the back wall of the refrigerator compartment, and the back wall of the vegetable compartment having a closed-type vegetable storage container. A cold air discharge port is provided, a cold air suction port is provided on the back of the closed type vegetable storage container, and a damper having a heat sensitive element that operates so that the cold air discharge port and the cold air suction port are opened at a predetermined temperature or higher. Since it is provided, when the temperature of the vegetable room becomes higher than the predetermined temperature, the vegetables and vegetables having a high temperature stored in the vegetable room (especially at the initial storage in summer or when the door is frequently opened and closed) can be rapidly cooled. Therefore, the temperature of the product quickly drops to an appropriate temperature.
Therefore, it becomes possible to extend the storage period of fruits and vegetables more than before.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view showing a refrigerator in one embodiment of the present invention, and FIG. 2 is a sectional view showing a conventional refrigerator. 10 Vegetable compartment, 14 Ventilation fan, 24 Vegetable storage container, 30 Ventilation path, 31 Cold air outlet, 32 Damper, 32a Thermal element, 33 Cold air inlet , 34 ... Damper, 34a ... Thermal element.

Claims (1)

(57) [Claims] 1. A cooling air outlet is provided on a back wall of the vegetable compartment having a closed-type vegetable storage container, wherein a ventilation path is provided on a back wall of the refrigerator compartment for communicating cool air from a fan in the refrigerator to the vegetable compartment. A refrigerator provided with a cool air suction port on the back surface of a closed type vegetable storage container, and a damper having a thermosensitive element that operates so that the cold air discharge port and the cool air suction port are opened at a predetermined temperature or higher.