Independent control temperature multi-compartment cooling refrigerator

Abstract

The present invention is multi-compartment refrigerator with separate temperature control and belongs to the field of refrigerator technology. The refrigerator includes control circuit and compressor, condenser, molecular sieve and liquid storage tank connected successively via pipeline. In the pipeline between the molecular sieve and the liquid storage tank, there are several parallel refrigerating pipelines comprising successively connected solenoid valve, capillary and evaporator. In the control units, at least one has the 'open' control logic of solenoid valve opposite to that of the others. In the pipeline between the evaporator and the liquid storage tank, there is secondary throttle valve installed. The present invention can avoid refrigerating loop blocking caused by strong electric interference to shutting all the solenoid valves, and has good refrigerating effect and high power saving effect.

Description

technical field [0001] The invention belongs to the technical field of refrigeration equipment, and in particular relates to an independently temperature-controlled multi-chamber refrigerating refrigerator (II) capable of cooling multiple chambers at the same time. Background technique [0002] Ordinary direct cooling refrigerators consist of a single refrigeration cycle (such as figure 1 As shown), when the main performance parameters of the refrigerator are determined, the configuration of the refrigeration system is also determined accordingly, and the adjustment margin is not large. However, refrigerators are in working condition throughout the year, and the ambient temperature changes greatly. Coupled with the different needs of users, it is required that the refrigeration system of refrigerators can be adjusted to a certain extent. The refrigerator and freezer cannot work separately, nor can they adjust the temperature relatively independently. This is mainly because...

AI Technical Summary

Problems solved by technology

At present, there are refrigerators with the following characteristics on the market: (1) Refrigerators that can separately control refrigeration and freezing, but these refrigerators use two sets of refrigeration systems (two compressors) to refrigerate the refrigerator and freezer respectively , the production cost of such a refrigerator is too high, and there is no difference between the two refrigerators

(2) Refrigerators that use several "one-in-one-out" solenoid valves in parallel to cool each compartment, but if all the "one-in-one-out" solenoid valves are closed at the same time, it will cause the high-pressure part and low-pressure part of the compressor to be out of balance ( like image 3 )

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