KR960024150A - Refrigeration control device of the refrigerator - Google Patents

Abstract

The present invention relates to a technique for preventing overcooling of the outlet of an evaporator for a refrigerating compartment. In a conventional refrigerator, the operation of a refrigeration cycle is not clear under a weak condition such as an overload of a refrigerating compartment or an overload of a freezer compartment. There is no alternative to the flow control technology of the refrigerant to maintain the freezer compartment and the refrigerating compartment at the target temperature, and there is a defect that cannot be applied to an existing refrigeration cycle because a two-stage compressor must be used. To this end, two evaporators were configured in parallel, and three-way valves were used to selectively supply refrigerant to the evaporator as needed to reduce power consumption and improve refrigeration efficiency, and prevent the evaporator outlet from being overcooled.

Description

Refrigeration control device of the refrigerator

Since this is an open matter, no full text was included.

Figure 4 is a schematic diagram of a refrigeration control device of the refrigerator of the present invention, Figure 5 is (a) the refrigerator compartment cold air flow diagram according to the present invention, (b) freezer compartment cold air flow diagram according to the present invention, Figure 6 is another embodiment of the present invention Illustrated diagram.

Claims (2)

When the refrigerant is supplied from the condenser 22, it expands the refrigerant to convert the high pressure saturated liquid into a low temperature, low pressure state and the refrigerant output from the electronic short tube (23) A three-way valve 24 to be delivered to the evaporator 25 shaft for the refrigerating chamber or a shaft of the freezer compartment evaporator 25 and a low-temperature and low-pressure refrigerant are supplied from the three-way valve 24 to cool the refrigerating chamber and to maintain a low temperature and empty state. A refrigerating chamber evaporator 25 to be converted into a refrigerator, a freezing chamber evaporator 26 which receives a refrigerant from the three-way valve 24 and the on / off valve 28 and converts the freezer into a low temperature and a high temperature state; A gas-liquid separator receiving refrigerant from the refrigerating chamber evaporator 25 and classifying the refrigerant into gas-liquid / gas-phase refrigerant, and outputting the gas-phase refrigerant to the compressor 21 side, and outputting the gas-liquid refrigerant to the on / off valve 28 side. 27) with freezer / freezer When two cooling operations are required, the on / off valve 28 which transfers the refrigerant of the gas liquid output from the gas-liquid separator 27 to the freezer compartment evaporator 26 and shuts off the rest, and from the compressor 21 Refrigeration control apparatus of the refrigerator, characterized in that it comprises a reverse valve (29) for preventing the backflow of the refrigerant to the freezer compartment evaporator (26). The capillary tube (30) according to claim 1, wherein the capillary tube (30) is provided between the on / off valve (28) and the freezer compartment evaporator (26) to reduce the pressure of the refrigerant supplied from the on / off valve (28) to the freezer compartment evaporator (26). Refrigeration control apparatus of the refrigerator, characterized in that the configuration further comprises. ※ Note: The disclosure is based on the initial application.