Electric refrigerator with vacuum refreshing system and vacuum refreshing box

Abstract

The invention relates to an electric refrigerator with a vacuum refreshing system and a vacuum refreshing box. The vacuum refreshing box comprises a box body and a cover. According to the proposals of the invention, the vacuum refreshing box also comprises a vacuumizing device, a vacuum release device and an opening device. When the opening device is operated to open the cover on the box body, the opening device also can drive the vacuum release device at the same time; and therefore, the vacuum refreshing box can be subjected to vacuum release when opened, which is convenient for users to operate.

Description

[technical field] [0001] The present invention relates to a refrigerator, in particular to a refrigerator with a vacuum preservation system and a vacuum preservation box used in a refrigeration device such as a refrigerator. [Background technique] [0002] As we all know, food can be stored for a long time under refrigerated or frozen low temperature. The length of food storage time is not only affected by temperature and humidity, but also by factors such as the oxygen content and bacteria in the air in the food storage environment. In order to make food The preservation time is longer, and people want to provide a low-oxygen, low-bacteria food storage environment, such as vacuum preservation boxes. [0003] European patent EP0405680A2 discloses a kind of vacuum preservation box arranged in the cold room of the refrigerator, such as figure 1 As shown, this vacuum preservation box includes a box body 17 and an openable cover body 19 that is connected to the box body, and a ...

AI Technical Summary

Problems solved by technology

The defect of this design is: if the refrigerator door 12 is opened, the vacuum crisper must be inflated and released, and the user has no other options. If the user only wants to open the refrigerator door and does not want to release the vacuum crisper, then this design can not meet the requirements

But its design defect is: the inflatable ball valve of this vacuum fresh-keeping box is arranged on the cover, if the user wants to open the vacuum box, it is necessary to first twist the inflatable ball valve to balance the air pressure inside and outside the vacuum box, and then the cover can be opened; Cartridge requires two steps, this design is not easy for the operator to use

Moreover, this vacuum fresh-keeping system includes two vacuum fresh-keeping boxes connected to different branches of the control extraction pipeline. Since there is no special device for controlling the on-off of the extraction pipeline, the refrigerator cannot independently vacuumize one of the two vacuum fresh-keeping boxes. When the working state of the vacuum system is abnormal, the existing design cannot reflect this abnormality in time

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