Refrigerator and freezer

A refrigerator and air-conditioning technology, which is applied to household refrigeration devices, cooling fluid circulation devices, household refrigerators, etc., can solve the problems of deterioration of energy-saving performance and increase of heat load of evaporators, and achieve the effect of high energy-saving performance

Active Publication Date: 2013-03-13
HITACHI APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, in the refrigerator described in Patent Document 1, when the compressor is stopped, high-temperature refrigerants present in the second condenser and the third condenser respectively flow into the evaporator responsible for cooling the inside of the box, and the evaporator The heat load increases and becomes the cause of deterioration of energy-saving performance

Method used

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  • Refrigerator and freezer
  • Refrigerator and freezer
  • Refrigerator and freezer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0032] figure 1 It is a front view showing the refrigerator according to Embodiment 1 of the present invention, figure 2 It is the edge showing structure in the refrigerator of the refrigerator figure 1 Cross-sectional view of the X-X line.

[0033] Refrigerator 1 according to Embodiment 1 includes refrigerator compartment 2 , ice making compartment 3 , upper freezer compartment 4 , lower freezer compartment 5 , and vegetable compartment 6 in order from above in refrigerator main body 1H serving as its main body. In addition, the ice making compartment 3 and the upper freezer compartment 4 are arranged side by side between the refrigerator compartment 2 and the lower freezer compartment 5 .

[0034] The refrigerator compartment 2 and the vegetable compartment 6 are storage rooms in a refrigeration temperature zone of approximately 3 to 5°C. On the other hand, ice making compartment 3, upper freezer compartment 4, and lower freezer compartment 5 are storage compartments in ...

Embodiment approach 2

[0157] Embodiment 2 The refrigerator 1 adopts the following structure: Before stopping the compressor 24, instead of closing the outlets 65b, 65c of the three-way valve 65 in Embodiment 1, a blocking mechanism is provided on the flow path downstream of the heat dissipation pipes 63, 64 near the evaporator. Close the two-way valve 6 before stopping the compressor 24.

[0158] Hereinafter, only the configuration and control of the refrigerator in Embodiment 1 will be described, and the same components or control steps as in Embodiment 1 will be assigned the same reference numerals, and detailed description will be omitted.

[0159] Figure 9 It is a figure which shows the structure of the refrigeration cycle of the refrigerator of Embodiment 2.

[0160] In the refrigeration cycle 2S of Embodiment 2, a two-way valve 66 is provided as a refrigerant flow rate adjustment mechanism on the downstream side of the drier 41 downstream of the junction of the flow passages downstream of t...

other Embodiment approach

[0174] In addition, in the first and second embodiments described above, the example in which the two-way valve 66 is provided between the radiation pipe (second condenser) 64 and the radiation pipe (third condenser) 63 and the evaporator 7 as the shutoff mechanism is described. However, any valve such as a three-way valve other than the two-way valve 66 may be used as the shut-off mechanism if the shut-off function of the shut-off mechanism can be achieved.

[0175] In addition, in the above-mentioned Embodiments 1 and 2, the refrigerator provided with the freezer compartment and the refrigerator compartment was described as an example, but the present invention can also be applied to a refrigerator provided with only the refrigerator compartment. In addition, the present invention can also be effectively applied to a freezer provided with only a freezer compartment.

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PUM

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Abstract

The refrigerator has condensers (61,62,64) that are positioned by the front opening edge portion of the heat insulation box. The condenser (63) is installed in places other than the front opening edge portion of the heat insulation box. The operation of the compressor (24) is stopped after closing the piping (68) by the side of condenser (63) for a definite period of time. A control board is provided to control the refrigerant collection for reducing the refrigerant amount in condensers (63,64).

Description

technical field [0001] The present invention relates to a refrigerator and a freezer with reduced power consumption. Background technique [0002] Conventionally, there is the following Patent Document 1 as the background art in this technical field. [0003] In the refrigerator described in Patent Document 1, it is provided with: a heat-insulating box that divides a storage room; The first refrigeration cycle of the mechanism and the evaporator is further equipped with a third condenser installed outside the heat-insulated box, which is switched from the second condenser installed outside the heat-insulated box through the channel switching valve. [0004] In addition, in this refrigerator, the second condenser is configured by replacing the second condenser with the third condenser installed outside the heat-insulating box outside the second condenser. [0005] Patent Document 1 discloses a refrigerator that suppresses the intrusion of heat from a third condenser provide...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25D11/02F25D29/00
CPCF25B49/022F25D17/06F25D29/00F25B2600/2507F25B2600/2515F25B2400/13F25B2500/27F25D2700/12F25B41/20F25D21/04F25B6/02F25B6/04
Inventor 板仓大盐野谦治河井良二
Owner HITACHI APPLIANCES INC
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