The scheme of regulation of the temperature regime at different temperatures

 

(57) Abstract:

The invention relates to the control scheme of the temperature regime at different temperatures and can be used in home oncompression coolers connected in series with the evaporator of the refrigerating chamber and the evaporator of the freezing chamber associated with the fan. The scheme includes thermostat, the sensor element which is located in the refrigerating chamber and which is designed to control the operation of the compressor and the fan. The scheme is equipped with a thermoregulator, a sensitive element which is located in the freezer and which provides off fan. 1 Il.

The invention relates to the control scheme of the temperature regime at different temperatures, in particular in home odnokomnatnyh coolers connected in series with the evaporator of the freezing chamber connected with the fan, and static evaporator of the refrigerating chamber.

For simplicity, the present description is given for a household refrigerator containing the freezing and refrigerating chambers.

In the present case, namely for a household refrigerator, the refrigerator contains silnoi chamber and connected to the fan, and the other static, is located in the refrigerating chamber.

In the refrigerator of this type, the temperature in the freezer is regulated mainly by two methods.

One of these methods is that the temperature in the cells is regulated based on the temperature in the refrigerating chamber temperature sensitive element which is installed on the evaporator of the refrigerating chamber.

A significant drawback of this scheme adjustment is the fact that this scheme may not provide optimal temperature simultaneously in the refrigerating and freezing chambers at different modes of operation of the refrigerator, which leads to the lowering of the freezing capacity freezer. When laying in the freezer of new products due to the stronger heat in a freezer temperature of the evaporator of the refrigerating chamber is reduced to a temperature of compressor shut-off thermostat is much slower than when the refrigerator is in the storage mode, so the operating time of the compressor increases, and the temperature in the refrigerating chamber is reduced, and lowering it below the 0oC is unacceptable. Because of this cooler with this scheme temperature adjustment penglei the camera when the power is on, reducing the term of the guaranteed preservation of quality products. Lowering the temperature in the refrigerating chamber automatically lowers the temperature in the freezer, which leads to higher energy consumption. In addition, the accumulating error arising in the manufacture of various parts of the circuit, causes a disturbance of the balance of temperatures (-18oC in the freezer and +5oC in the refrigeration chamber) between the freezing and refrigerating chambers, thereby resulting in instability of the technical characteristics in terms of mass production.

Another method of temperature control is the use of electromagnetic valve. This method is complicated in technical execution and expensive.

Closest to the invention is the refrigeration Cabinet with microprocessor controlled temperature regulation (DE, application 3904216, A1, class F 25 D 29/00, publ. 16.08.90). The disadvantage of this scheme is that the temperature in the refrigerating compartment is achieved by a complex interaction between the evaporator, which cools the air in the refrigerating chamber, a Heater, which heats the same air, and a fan to circulate the air is with decreasing temperature in the refrigerating chamber, that leads to disruption of the optimal modes of storing food in the refrigerator. In order to achieve the required freezing capacity of the freezing chamber and to prevent the fall of the temperature in the refrigerating chamber below the 0oC, scheme involves the incorporation in the work teploelektronagrevatelya and fan, which increases energy consumption. This method of temperature control is possible only with electronic control modes, which makes the design of the refrigerator expensive and less reliable.

The aim of the invention is the creation of a scheme of regulation of the temperature regime at different temperatures, in particular in home refrigerators, which would not have the disadvantages of conventional schemes and provide independent adjustment of the temperature in the refrigerating and freezing chambers.

Another objective of the invention is to provide an extremely simple and reliable scheme of regulation.

These and other objectives will be apparent to a person skilled in the art from the following description.

The scheme of regulation of the temperature regime at different temperatures in the refrigerator, which contains the freezing and refrigerating chambers, who, and the evaporator, located in the refrigerating chamber, the fan associated with the evaporator of the freezing chamber, a thermostat for controlling operation of the compressor and the fan, the sensitive element of which is located in the refrigerating chamber, characterized in that for controlling operation of the fan has a thermostat, the sensor element which is located in the freezer, which at low temperature in the freezer is below the norm turns off the fan air circulation in the freezer.

The preferred embodiment of the invention applied to a domestic refrigerator is shown schematically in the drawing.

In the drawing the entire refrigerator designated position 1. It contains the freezing chamber 2 and the refrigerating chamber 3, a compressor 4, a condenser and an inductor (not labeled), connected in series evaporator 5, located in the freezer and the evaporator 6, located in the refrigerating chamber, the fan 7, is associated with the evaporator of the freezing chamber, the controller 8 to control the operation of the compressor and the fan, the sensitive element of which is located in the refrigerating chamber.

The scheme of regulation of the temperature regime at different temperatures in the refrigerator, which contains the freezing and refrigerating chambers, compressor, evaporator connected in series, located in the freezer and the evaporator, located in the refrigerating chamber, the fan associated with the evaporator of the freezing chamber, a thermostat for controlling operation of the compressor and the fan, the sensitive element of which is located in the refrigerating chamber, substantially characterized in that to control the operation of only one fan is mounted a thermostat, a sensitive element which is located in the freezer, which at low temperature in the freezer below normal or installed pokazatel

 

Same patents:

The invention relates to refrigeration and can be used for storing food and kimchi

The invention relates to refrigerators - freezers, in which the cooling of the freezing and refrigerating chambers are at the expense of the evaporator associated with the fan located in the upper part of the freezer

Install cooling // 2107870
The invention relates to mechanical engineering and can be used for cooling products, such as coated parts after drying

The invention relates to the field of equipment for refrigerated storage of food and agricultural products

The invention relates to food industry, namely, to installations for processing air food

The invention relates to refrigeration and can be used to cool closed volumes

The invention relates to refrigeration, and in particular to devices for cooling the processing of food products such as meat carcasses

The invention relates to refrigeration and can be used for storing food and kimchi

The invention relates to a refrigerating device intended for storage of frozen or refrigerated products

The invention relates to refrigerators - freezers, in which the cooling of the freezing and refrigerating chambers are at the expense of the evaporator associated with the fan located in the upper part of the freezer

The invention relates to refrigeration, and in particular to multi-domestic refrigerators

Household freezer // 2094714
The invention relates to refrigeration and can be used in household freezers and refrigeration machines small refrigerating capacity

The invention relates to refrigeration, and more particularly to a device intended for use in household refrigerators with forced circulation of air in the refrigerated volume and air-conditioning

The invention relates to techniques for storing and processing food products and can be used for cooling, freezing and freeze-drying in a domestic environment

FIELD: cooling, particularly self-contained movable devices, domestic refrigerators with several compartments.

SUBSTANCE: method involves successive pumping cooling agent in condenser; throttling thereof; moving cooling agent to cooling chamber evaporator; additionally throttling thereof and feeding cooling agent to freezing chamber evaporator with following sucking cooling agent off; drying vapor-and-liquid mixture in cooing chamber evaporator under temperature of 0 … - 5oC; boiling vapor-and-liquid mixture in freezing chamber evaporator under temperature of -20 … -30oC.

EFFECT: reduced energy losses.

1 dwg

Up!