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Refrigerator

A technology for refrigerators and fresh-keeping boxes, which is applied to the field of refrigerators with vacuum fresh-keeping devices, can solve problems such as the laboriousness of vacuum pumps, and achieve the effects of ensuring vacuuming effect, reducing working noise and energy consumption.

Pending Publication Date: 2022-04-19
HISENSE(SHANDONG)REFRIGERATOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

figure 1 Shown is the relationship curve between vacuuming time and vacuum pressure when the vacuum pump pumps fresh-keeping boxes with different volumes. It can be seen from the figure that the more the vacuum pump is pumped, the more laborious it is.

Method used

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Experimental program
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Embodiment approach

[0050] As a specific embodiment, 0>P1≥-10kpa, the operating power in the first power operation mode is the full load power of the evacuation module.

[0051] As a specific embodiment, -10kpa > P2≥-30kpa, the operating power in the second power operating mode is 0.8-0.9 times the full load power of the vacuum module.

[0052] As a specific embodiment, -30kpa > P3, the operating power in the third power operating mode is 0.4-0.5 times the full load power of the evacuation module.

[0053] In some embodiments of the present application, reference is made Figure 2 , the crisper box 30 is located on the door body 10. The evacuation assembly comprises a sequentially connected vacuum connection 40, a vacuum line (not shown) and a vacuum pump (not illustrated), the vacuum connection 40 and the crisper 30 detachable connection. The structure of the vacuum joint 40 is not the focus of protection of the present application, and the present application does not limit its specific structure.

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Abstract

The invention discloses a refrigerator which comprises a preservation box, a vacuumizing assembly and a pressure monitoring device. When the pressure in the preservation box is within the range P1, the vacuumizing assembly works in a first power operation mode; when the pressure in the preservation box is within the range P2, the vacuumizing assembly works in a second power operation mode; wherein P1 is greater than P2, and the working power in the first power operation mode is greater than the working power in the second power operation mode. The working power of the vacuumizing assembly is associated with the vacuum degree in the preservation box, and the working noise and energy consumption of the vacuumizing assembly are reduced while the vacuumizing effect is guaranteed.

Description

Technical field [0001] The present invention relates to the technical field of refrigeration equipment, in particular to a refrigerator having a vacuum preservation device. Background [0002] In recent years, people's health awareness has gradually improved, the demand for food preservation has also increased, refrigerators as the most commonly used household appliances for food storage, food preservation storage has become an urgent technical need to be solved in the field of refrigerators. At present, in response to the problem of fresh storage of ingredients, various manufacturers have introduced different preservation technologies. For example, vacuum preservation technology, in the vacuum state, the conditions under which food spoils have changed. First of all, the vacuum environment, microorganisms, various promotion enzymes are difficult to survive, it takes a long time to meet the requirements of microbial breeding; secondly, in the vacuum state, the oxygen in the conta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25D11/00F25D17/04F25D23/04F25D29/00
CPCF25D11/00F25D17/042F25D17/045F25D23/04F25D29/003F25D2317/043
Inventor 刘铁伟杨春
Owner HISENSE(SHANDONG)REFRIGERATOR CO LTD