JPS63118581A - Refrigerator - Google Patents

Abstract

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

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a refrigerator, and particularly to a refrigerator suitable for improving the preservability of foods.

[Conventional technology]

Conventional refrigerators are equipped with a manual shutter that opens and closes a cold air intake hole in a lid provided at the top opening of a vegetable container provided in the refrigerator compartment, as described in Japanese Patent Application Laid-open No. 56-63986. . When the temperature in the vegetable compartment rises, the shutter opens the hole to let cold air from the refrigerator compartment into the vegetable compartment, and when the temperature in the vegetable compartment is desired to be high, the shutter closes the hole. .

[Problems to be Solved by the Invention] 'The above-mentioned conventional technology did not give consideration to the point of automatic humidity control in the vegetable compartment, resulting in insufficient food preservation.

An object of the present invention is to provide a refrigerator that can automatically control the humidity in the vegetable compartment and improve the preservation of food.

[Means for solving problems]

The above purpose is to operate an opening provided in a part of the board, a flapper provided in the board to open and close the opening, and a flapper in a refrigerator having a container closed with a board. The humidity bimetal is achieved by detecting the humidity inside the container.

[Effect]

When the humidity bimetal deforms due to changes in the humidity inside the container, the flapper slides and automatically opens and closes the opening of the plate. As a result, the humidity in the dedicated room can be controlled.
Food can be stored for a long time.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 4. 1 is a refrigerator compartment, 2 is a door of the refrigerator compartment 1, 3 is a vegetable compartment made up of containers, and 4 is a door of the vegetable compartment 3. Moreover, 5 is a partition plate that divides the refrigerator compartment 1 and the vegetable compartment 3.

A humidity bimetal 6 is fixed to a part of the partition plate 5 on the vegetable compartment 4 side with a fixed shaft 11, and the nuclear humidity bimetal 6 is made by pasting together a moisture-sensitive material 8 such as nylon or cellulose and a thin film spring 7 made of brass. A flapper 9 is attached to the tip of the humidity bimetal 6. Further, an opening 10 smaller than the flapper 9 is provided in the partition plate 5 of the flapper 9 portion.

According to this embodiment, a refrigerator compartment is partitioned by a partition plate 5 as a dedicated room or a vegetable compartment 3, an opening 10 is formed in a part of the partition plate 5, and a humidity bimetal 6 is attached to a fixed shaft on the side of the dedicated compartment or vegetable compartment 5. In a structure in which a flapper 9 is provided at the tip of the humidity bimetal 6, the humidity bimetal 6 whose humidity has been set deforms due to changes in the humidity in the dedicated compartment or vegetable compartment 3, and the tip of the humidity bimetal 6 is fixed. The flapper 9 operates to automatically open and close the opening 1o to control the humidity in the dedicated room or the vegetable compartment 3. Therefore, there is an effect that fresh foods can be preserved for a long period of time. Also,
By changing the set humidity of the humidity bimetal 6, it is possible to control the humidity in various dedicated rooms, and it is also possible to preserve fish and meat for a long period of time. Humidity bimetals for refrigerators are used at low temperatures, so humidity bimetals used in general pointer-type humidity indicators do not have the power to operate the flapper.

The humidity bimetal used in the present invention is a strip-shaped bimetal formed by combining a copper alloy thin plate spring material with a cellulose thin plate and uniaxially stretched nylon as moisture-sensitive materials into a spiral shape, and the flapper 9 is reliably held even at low temperatures. It has the effect of making it work. Next, another embodiment of the present invention will be explained with reference to FIGS. 5 to 7. 12 is a refrigerator, 13 is a humidity control container, 14 is a lid;
5 is a movable plate, and 16 is a hygroscopic sheet.

The movable plate 15 has a hygroscopic sheet 16 attached inside thereof like the lid 14, and a fixing magnet 15a is installed at the end of the movable plate 15 on the hygroscopic sheet side, and the movable plate fixing magnet 15a is installed at the end of the movable plate 15 on the hygroscopic sheet side. Fixing magnets 15b are also installed in the opposing parts, creating a combination of poles that attract each other. Or fixing magnet 15a,
Either of the elements 15b may be made of a magnetic material such as iron. Furthermore, a balance weight 15d is installed on the movable plate 15 so as to be balanced substantially parallel to the lid when no magnetic force is applied to the opposite side via the fulcrum 15c.

The humidity control container 13 is cooled from its surroundings, so that dew condenses on the inside of the wall. Although dew condenses on the inside of the lid 14, it is absorbed into the hygroscopic sheet 16 before becoming water droplets.
Water droplets do not adhere to the inside of the lid 14 and therefore do not fall into the closed container 13. The hygroscopic sheet 16 can be made of, for example, open-cell foam of polyvinyl alcohol, open-cell foam of other hydrophilically treated plastics, hydrophilic nonwoven fabric, sintered plastic, or the like.

Humidity control is performed by absorbing and desorbing moisture with the hygroscopic sheet 16 installed inside the lid 13 and the movable plate 15. That is, when the humidity is high, moisture is adsorbed by the hygroscopic sheet 16 installed inside the movable plate 15. Weight increases. When the weight exceeds the force of the fixing magnets 15a, 15b, the movable plate 15 operates as shown by arrow A in FIG. 6 and opens, releasing the moisture in the barrel chamber as shown in FIG. 7.

When the humidity decreases, the weight of the adsorbent sheet 16 of the movable plate 15 decreases, and the fixing magnets 15a and 15b attract each other, operating as shown by arrow B in FIG. 7 to close the opening as shown in FIG. 6. Furthermore, the hygroscopic sheet 16 also functions to release adsorbed moisture and prevent the internal humidity from decreasing.According to this embodiment, it prevents water droplets from adhering to the inside of the container lid, and furthermore, prevents water droplets from adhering to the inside of the container lid. Humidity control can be performed stably.

〔Effect of the invention〕

According to the present invention, the flapper automatically opens and closes the opening in accordance with the set humidity of the humidity bimetal, and the humidity in the vegetable compartment can be controlled, so that the food can be stored well.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of essential parts of a refrigerator equipped with the present invention, and FIG. 2 is a front view of a humidity bimetal used in the refrigerator of the present invention.
FIG. 3 is a front view of a partition plate used in the refrigerator of the present invention;
FIG. 4 is a sectional view taken along the line A-A in FIG. 3, FIG. 5 is a longitudinal sectional view of a refrigerator humidity control container according to an embodiment of the present invention, and FIGS. 6 and 7 are main parts of the lid shown in FIG. 5. This is an enlarged view. 1... Refrigerator compartment, 2... Refrigerator door, 3... Vegetable compartment,
4... Vegetable compartment door, 5... Partition plate, 6... Humidity bimetal, 7... Thin film spring, 8... Moisture sensitive material, 9...
Flapper, 10... Opening, 11... Fixed shaft, 1
2... Refrigerator, 13... Humidity control container, 14... Lid,
15... Movable plate, 15a... Fixing magnet, 15b... Fixing magnet, 15c... Fulcrum, 15d... Balance weight, 16... Hygroscopic sheet. Agent Patent Attorney Katsuo Ogawa'iF 1 Diagram 2 Diagram 10・・岨諌とshadowp ￥'-3 Diagram Q

Claims (1)

[Claims] In a refrigerator having a container closed by a plate, an opening provided in a part of the plate, a flapper provided in the plate to open and close the opening, and a flapper provided in the plate to operate the flapper. It consists of a humidity bimetal and
The refrigerator is characterized in that the humidity bimetal detects humidity within the container.