Electric switching valve

Abstract

The invention discloses an electric switching valve. The electric switching valve comprises a motor, a gear assembly, a slide block and a valve seat; and the slide block can be driven by the gear assembly to rotate on the valve seat under driving of the motor so as to open or close one of a plurality of output ports in the valve seat, and a rotor shaft of the motor is in flexible connection with a first gear of the gear assembly. Through structural design of the electric switching valve, assembled relevant spare parts of the gear assembly can be reduced, and the machining precision of the relevant spare parts and the control precision of assembly are lowered, so that the assembling yield of a product is improved while manufacturing cost is reduced.

Description

Technical field [0001] The invention relates to the technical field of refrigeration equipment, in particular to an electric switching valve. Background technique [0002] In refrigeration cycle devices, such as air-conditioning pipelines, an electric switching valve is usually used as a control component for changing the refrigerant flow path. [0003] Please refer to figure 1 , figure 1 It is a schematic cross-sectional view of an existing electric switching valve. [0004] The electric switching valve includes a valve seat 101, an outer cover 102 fixed above the valve seat 101, and a housing 103 fixed above the outer cover 102. Both ends of the housing 103 are fixedly connected to end covers, wherein the lower end cover 105 and the outer cover 102 The valve seat 101 cooperates to form a valve cavity, and the upper end cover 104, the lower end cover 105 and the housing 103 cooperate to form a containing cavity. [0005] The accommodating cavity is equipped with a rotor 106, the out...

AI Technical Summary

Problems solved by technology

[0011] In the above structure, the central position of the first gear 109 is guaranteed by the assembly between the outer cover 102, the casing 103, the upper end cover 104, the lower end cover 105 and the valve seat 101, and the central position of the second gear 110 meshing with the first gear 109 is then Through the assembly guarantee of the valve seat 101 and the gear shaft 115, it is obvious that the center-to-center distance between the two gears is relatively large, and there are high requirements for the manufacturing process and assembly control accuracy of related parts, resulting in high manufacturing costs. , the qualified rate of product assembly is low

Images