An aspect of the present disclosure is to provide a refrigerator that enables a refrigerating chamber evaporator to replace an existing accumulator and defrost heater by improving a structure of the refrigerating chamber evaporator and a control method. The refrigerator in which a compressor, a condenser, a throttle, a freezing chamber evaporator, and a refrigerating chamber evaporator are connected through a refrigerant passage to form a refrigeration cycle. The refrigerating chamber evaporator may be provided between the freezing chamber evaporator and the compressor. A straight passage of a certain length may be formed at a refrigerant inlet side of the refrigerating chamber evaporator. A curved passage having a plurality of curved sections may be formed at a refrigerant outlet side of the refrigerating chamber evaporator.

A refrigerator calibration method and system, and a refrigeration device is described. According to some embodiments of the refrigerator calibration method, by means of the variation in the temperatures of a plurality of compartments after any one refrigeration system operates for a predetermined time, a correlation between the refrigeration system and a compartment can be determined, such that a connection between the refrigeration system and the compartment does not need to be pre-specified. Therefore, a refrigerator being unable to perform normal refrigeration due to a connection error during a production process can be effectively avoided, and the probability of needing to repair the refrigerator is reduced, thereby improving the production efficiency of the refrigerator and the reliability of the refrigerator.

A method for controlling a refrigerator includes turning on a compressor to operate with a predetermined cooling power for cooling a storage compartment, turning off the compressor when a temperature of the storage compartment reaches a temperature equal to or lower than a first reference temperature, and turning on the compressor again when the temperature of the storage compartment reaches a temperature equal to or higher than a second reference temperature higher than the first reference temperature. In the turning on the compressor again, the compressor is operated with a cooling power determined based on an on slope, which is a temperature change slope of the storage compartment during an on time of the compressor, and an off slope, which is a temperature change slope of the storage compartment during an off time of the compressor.

A control method and device for a refrigerator, and the refrigerator. The refrigerator comprises at least two compartments. The control method comprises: acquiring a compartment currently requesting cooling; after detecting and confirming a first set time, the compartment currently requesting cooling not being cooled, determining a currently cooled compartment, and interchanging currently set valve body rotation angles corresponding to the compartment currently requesting cooling and the currently cooled compartment requesting cooling. The present disclosure may solve the problem in which a refrigerator cannot be cooled normally due to a connection error between the capillary tube and a solenoid valve during the production of a multi-system refrigerator, and reduces the refrigerator repair rate, improves the refrigerator production efficiency, and reduces fabrication costs.

A refrigerator includes a first refrigeration cycle unit that is configured to circulate a first refrigerant and that includes a first compressor, a first condenser, a first expansion device, and a first evaporator, a second refrigeration cycle unit that is configured to circulate a second refrigerant and that includes a second compressor, a second condenser, a second expansion device, and a second evaporator, a first valve unit installed at an outlet side of the first compressor, and a first hot gas path configured to extend from the first valve unit to the second evaporator and configured to supply the first refrigerant to the second evaporator.

A refrigerator including a compressor, a condenser, a freezing chamber evaporator, a freezing chamber fan, a defrosting heater, a wine chamber evaporator, a wine chamber fan, a path switching device configured to guide the refrigerant condensed in the condenser to the freezing chamber evaporator in a freezing chamber mode and to guide the refrigerant condensed in the condenser to the wine chamber evaporator in a wine chamber mode, and a controller configured to turn on the defrosting heater to perform a freezing chamber defrosting mode for defrosting the freezing chamber evaporator, to control the path switching device to the wine chamber mode while the temperature of the wine chamber is dissatisfied when the temperature of the wine chamber is dissatisfied in the freezing chamber defrosting mode, and to drive the wine chamber fan.

A modular refrigerator includes a plurality of modules with at least one cooling unit module and at least one refrigeration module. The at least one cooling unit module and the at least one refrigeration module are independently constructed and secured to one another. The at least one refrigeration module may include at least a first refrigeration module and a second refrigeration modules. The at least one cooling unit module may be a common cooling unit module for selectively providing a refrigerant to the first and second refrigeration modules.

A drawer includes insulation defining a climate-controlled insulated interior of the drawer, and a refrigeration system. The interior of the drawer may be divided into compartments having lids, and actuators may be provided for unlocking the lids. The actuators may include solenoids, which may be disposed outside the climate-controlled interior of the drawer. The drawer may include an air inlet, an outlet, and a fan. The fan may draw air through an air flow path defined at least in part by the insulation.

A control method of a refrigerator includes: determining whether a first temperature of a refrigerating compartment satisfies a first temperature condition; based the first temperature satisfying the first temperature condition, determining whether a second temperature of a freezing compartment satisfies a second temperature condition; based on the second temperature satisfying the second temperature condition, determining (i) whether a third temperature of an ice making compartment satisfies a third temperature condition and (ii) whether a driving time for ice making has passed; maintaining operation of a compressor while determining (i) whether the second temperature satisfies the second temperature condition, (ii) whether the third temperature satisfies the third temperature condition, and (iii) whether the driving time has passed; and stopping operation of the compressor based on at least one of (i) a determination that the third temperature satisfies the third temperature condition or (ii) a determination that the driving time has passed.

An appliance includes a refrigeration compartment that is defined by a plurality of interior walls. A freezer compartment is positioned proximate to the refrigeration compartment. A compressor is positioned proximate to at least one of the refrigeration compartment and the freezer compartment. A first evaporator is operably coupled to the compressor. A suction line is operably coupled to the first evaporator and is configured to convey refrigerant from the first evaporator toward the compressor. The suction line includes a suction line looping portion that generally defines an inner suction line loop and an outer suction line loop. A capillary tube is operably coupled to the first evaporator and is configured to convey refrigerant to the first evaporator. The capillary tube is configured to contact the suction line looping portion, such that heat from the capillary tube is transferred to the suction line.