Refrigerator

A technology of a refrigerator and a fresh-keeping device, which is applied to the field of refrigerators with a vacuum fresh-keeping device, can solve the problems of excessive water loss, damage to the structural strength of the fresh-keeping drawer, and influence on the freshness.

Pending Publication Date: 2022-05-13
HISENSE(SHANDONG)REFRIGERATOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As the cold air in the refrigerator will continuously enter the fresh-keeping drawer, causing the air in the fresh-keeping drawer to shrink, the actual pressure in the fresh-keeping drawer will be far lower than the set pressure value of the system, which will damage the structural strength of the fresh-keeping drawer. At the same time, it will also cause some ingredients to lose water too quickly due to too much low pressure, which will affect the freshness.

Method used

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Embodiment Construction

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0029] In the description of this application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", The orientations or positional relationships indicated by "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the application and simplifying the description, rather than indicating or implying Refe...

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Abstract

The invention discloses a refrigerator, a fresh-keeping device is arranged in the refrigerator, the fresh-keeping device has a safety pressure Ps and a system pressure P0, and Ps is greater than P0; the pressure detection device is used for detecting the pressure in the fresh-keeping device; the vacuum pump is used for vacuumizing the fresh-keeping device; the controller is used for receiving pressure data fed back by the pressure detection device and controlling operation of the vacuum pump. And after the fresh-keeping device is opened for T1 time and then closed, the controller controls the vacuum pump to vacuumize the fresh-keeping device, and when the controller receives pressure data fed back by the pressure detection device and reaches Ps, the controller controls the vacuum pump to stop. The pressure reached by first vacuumizing after the fresh-keeping device is opened and closed is larger than the system pressure, so that the situation that the actual pressure in the fresh-keeping device is far lower than the system pressure due to cold air shrinkage in the subsequent low-pressure keeping process is avoided, the structural strength of the fresh-keeping device is guaranteed, and the fresh-keeping degree of food materials is improved.

Description

technical field [0001] The invention relates to the technical field of refrigeration equipment, in particular to a refrigerator with a vacuum preservation device. Background technique [0002] In recent years, people's health awareness has gradually increased, and the demand for food preservation has also increased. Refrigerators are the most commonly used household appliances for food storage, and food preservation and storage has become an urgent technical demand in the refrigerator field. At present, various manufacturers have introduced different fresh-keeping technologies for the preservation and storage of food materials. For example, vacuum preservation technology, under the vacuum state, the conditions for food deterioration have changed. First of all, in a vacuum environment, microorganisms and various promoting enzymes are difficult to survive, and it takes a long time to meet the requirements of microbial growth; secondly, in a vacuum state, the oxygen in the con...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): F25D25/02F25D29/00
CPCF25D29/00F25D25/025
Inventor刘铁伟张建杨春
OwnerHISENSE(SHANDONG)REFRIGERATOR CO LTD