Electrically operated valve for refrigerating system

Abstract

The invention discloses an electrically operated valve for a refrigerating system. The electrically operated valve for the refrigerating system comprises a valve seat, a motor and a valve cover. The valve seat is provided with an inlet, a pressure relief opening and a plurality of outlets. The pressure relief opening and the outlets are located on the upper surface of the valve seat. The valve cover is arranged above the valve seat, and the motor is fixedly arranged on the valve cover. The motor comprises a stator and a rotor. The stator is arranged on the outer surface of the valve cover and the rotor is arranged in a cavity of the valve cover. A mandril is arranged in the center of the rotor and the rotor can rotate around a central line of the mandril. A valve core provided with a pressure relief flow guiding groove and a through groove is fixedly arranged at the lower end of the mandril. The lower surface of the valve core leans against the upper surface of the valve seat. The pressure relief flow guiding groove is arranged on the lower surface of the valve core. The through groove penetrates through the valve core along the thickness direction of the valve core. The electrically operated valve for the refrigerating system provided by the invention has the advantages of reducing energy loss of the refrigerating system, lowering the noise, and improving the high stability of the refrigerating system and the like.

Description

technical field [0001] The invention relates to an electric valve used in a refrigeration system. Background technique [0002] Ordinary household refrigerators mostly belong to the vapor compression refrigeration system, which controls the temperature inside the refrigerator by controlling the start and stop of the compressor. However, when the compressor stops working, the pressures of the condenser and the evaporator tend to be balanced, and during the balancing process, the hot refrigerant flows into the evaporator through the capillary tube, causing unnecessary energy loss to the refrigerator. When the compressor starts, the condenser and evaporator also lose some energy during the process of re-establishing the pressure difference. The more frequently the refrigerator is turned on and off, the more energy is lost. This part is due to the energy loss caused by the start and stop of the compressor, which will increase the power consumption of the refrigerator. [0003]...

AI Technical Summary

Problems solved by technology

The biggest defect of this kind of solenoid valve is that it has a large action noise, and it cannot realize the "pressure relief" function itself. It is required to design a special "pressure relief capillary" with condensation function or add a "two-position two-way" pressure relief solenoid valve. The resulting problems are "slow response" of the pressure relief circuit, poor closing performance of the one-way valve, many parts, and unstable energy-saving effect of the refrigerator

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