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Multi-circulation refrigerator with circulation fan and separated refrigeration and freezing compartment

A multi-circulation, refrigerator technology, applied in household refrigerators, cooling fluid circulation devices, coolers, etc., can solve the problems of easy air drying on the surface of food, decreased system efficiency, and large heat exchange temperature difference in the refrigerator compartment.

Inactive Publication Date: 2005-11-09
HISENSE HOME APPLIANCES GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the shelf-type evaporator in the freezer is frosted, the frost layer at the front of the evaporator near the door is thicker than that at the rear, which makes the phenomenon of uneven temperature more serious, which is not conducive to the placement of food;
[0008] There are also some full-air-cooled refrigerators with multiple temperature zones on the market. The forced convection of cold air forms a circulating air duct in the refrigerator, which can improve the uneven temperature of the storage room. However, the entire refrigeration system of full-air-cooled refrigerators uses a large fin Type evaporator, for refrigeration, freezing and other rooms, the evaporation temperature must meet the requirements of the freezer, which will inevitably cause a large heat transfer temperature difference in the refrigerator, and the surface of the food is easy to dry, which will reduce the system efficiency. In addition, the full air-cooled refrigerator Due to the long air duct and the loss of cooling capacity, it consumes more energy than ordinary direct cooling refrigerators
At the same time, too long air duct structure reduces the effective volume of the refrigerator

Method used

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  • Multi-circulation refrigerator with circulation fan and separated refrigeration and freezing compartment
  • Multi-circulation refrigerator with circulation fan and separated refrigeration and freezing compartment
  • Multi-circulation refrigerator with circulation fan and separated refrigeration and freezing compartment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0017] Embodiment 1, see Figure 1~3 .

[0018] figure 1 A side cutaway view of a three-door refrigerator is shown, figure 2 It is a schematic diagram of the front structure of the refrigerator. Such as figure 1 and figure 2 As shown, the refrigerator is divided into a refrigerating chamber 10, a temperature-changing chamber 20 and a freezing chamber 30 from top to bottom, and two adjacent chambers are separated by insulation layers. In the refrigerating room 10, it mainly consists of the following three parts: the refrigerating area where the shelf is placed, the fruit and vegetable area surrounded by the partition and the walls of the refrigerating room, and the ice temperature area. The temperature in the ice temperature area is close to 0°C. The storage drawer 13 that can push and pull forward or backward is built in the area. Equally, the storage container 12 that can push and pull such as drawer etc. is built in fruit and vegetable area. The fruit and vegetable ...

Embodiment approach 2

[0024] see Figure 4 , using two three-way valves to replace the original solenoid valves connected in series on each evaporator branch, reducing the valve device of the evaporator branch, and the refrigeration circuit of the refrigerator is improved as follows: it will include a refrigerating room, a variable temperature room, and a freezing room Capillary tubes (labels are respectively 41, 42, 43) adapted to the evaporation temperature are connected in series on the three evaporator branches of the evaporator (labels are respectively 11, 21, 31), and the two evaporators of the cold room and the variable room are connected in series. The branch circuit of the device is connected to the output end of the first three-way valve 61 in parallel, and the input port of the first three-way valve 61 and the branch circuit of the freezer evaporator are connected to the output port of the second three-way valve 62 in parallel. The input end of the second three-way valve 62 is connected ...

Embodiment approach 3

[0026] In the first embodiment, the freezer evaporator and circulation fan are placed in the rear cavity, which will inevitably reduce the depth of the freezer drawer. In order to solve this problem and keep the freezer evaporator away from the compressor, the freezer evaporator and circulation fan are fixed on top of the freezer. see Figure 5 , the upper part of the freezer compartment is provided with a partition to form an evaporator chamber containing the freezer evaporator and the circulation fan. In the evaporator chamber, the circulation fan 132 is placed behind the freezer evaporator 131, and the front of the evaporator chamber is close to the freezer chamber. Set the return air outlet at the position of the door body. An air deflector is arranged on the back of the freezer to form an air supply duct with the inner chamber, and a freezer drawer is placed in front of the deflector, and the air supply duct communicates with the evaporator cavity. Air supply outlets ar...

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PUM

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Abstract

The invention discloses a separate multicycle refrigerator that includes refrigerated chamber located on the up part, refrigerated chamber located in the middle, refrigerating chamber located at the down part and gates of the chambers. The middle refrigerated chamber is temperature variable chamber that the temperature control device is set in; evaporator is set on the inside wall of refrigerated chamber and refrigerating chamber; refrigerating evaporator is set in the cavity of the refrigerating chamber; cycle fan that is used to exchange heat between refrigerating chamber and the refrigerating evaporator is set new the refrigerating evaporator. Defrosting device is set on the evaporator. The invention could be widely used in family, hotel or restaurant.

Description

technical field [0001] The present invention relates to a refrigerator, in particular to a refrigerator with multiple compartments and multiple cycles. Background technique [0002] As we all know, according to the storage requirements of different foods, refrigerators have multiple compartments that are controlled in different temperature ranges. The most basic functional compartments are refrigerators and freezers, and the refrigerators are divided into refrigeration areas and fruit and vegetable areas. In recent years, some refrigerators with multiple temperature zones have appeared on the market. This type of refrigerator also adds a low-temperature zone or ice temperature zone between the refrigerating zone and the freezing zone. The storage temperature is generally between 0°C and -5°C. When the meat is stored at about -5°C, the degree of surface oxidation is obviously better than that of frozen storage, and the freshness of the storage is grea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25D11/02
Inventor 许欢庆康永秋白莉
Owner HISENSE HOME APPLIANCES GRP CO LTD