Fresh-keeping device and refrigerator

Abstract

The invention discloses a fresh-keeping device and a refrigerator. The fresh-keeping device comprises a frame, a drawer and a deoxidizing module, the frame is provided with an accommodating space, an opening is formed in one side of the frame, air holes are formed in the wall of the frame, and the air holes communicate with the accommodating space; the drawer can enter the accommodating space through the opening and is accommodated in the accommodating space, and the deoxidizing module is arranged at the air holes of the frame so as to consume oxygen in the accommodating space. According to the fresh-keeping device, when a low-oxygen environment is formed, nitrogen cannot be consumed and transferred, the negative pressure formed in the accommodating space is small, the requirement for the structural strength is low, the overall structure of the fresh-keeping device does not need to be reinforced, so that the material cost is reduced, and the volume loss is reduced; and moreover, when oxygen in the space is gradually consumed, the speed of external air permeating into the accommodating space can be reduced due to the fact that the space is relatively sealed, and therefore the low-oxygen negative-pressure state in the space can be kept for a period of time.

Description

technical field [0001] The invention relates to the field of refrigeration and freezing, in particular to a fresh-keeping device and a refrigerator. Background technique [0002] The existing refrigerator vacuum preservation technology uses a vacuum pump to extract the air in the storage space, reduces the oxygen content, and enhances the preservation effect. As we all know, the initial oxygen content of gas in a normal storage space is about 20%, and the nitrogen content is about 80%. Assuming that in a 10L space, the initial oxygen content is about 2L. When a vacuum pump is used to extract the air in the storage space, oxygen and nitrogen are taken away at the same time. When 1L of oxygen is taken out, 4L of nitrogen is taken away at the same time. At this time, there are 1L of oxygen and 4L of nitrogen in the space, forming a large negative pressure. , about -0.5bar; Due to the large internal and external pressure difference, in order to prevent the deformation of the dr...

AI Technical Summary

Problems solved by technology

When a vacuum pump is used to extract the air in the storage space, oxygen and nitrogen are taken away at the same time. When 1L of oxygen is taken out, 4L of nitrogen is taken away at the same time. At this time, there are 1L of oxygen and 4L of nitrogen in the space, forming a large negative pressure. , about -0.5bar; due to the large internal and external pressure difference, in order to prevent the deformation of the drawer frame, the overall structure needs to adopt a reinforced design, such as the need to thicken, strengthen the material and increase the rib design, etc., resulting in a large loss of material and volume.

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