Electronic expansion valve and manufacturing method thereof

Abstract

The invention relates to an electronic expansion valve and a manufacturing method of the electronic expansion valve. The electronic expansion valve comprises a shell module (100), a core module (200) and a valve body module (300). The core module (200) comprises a mandril (51), a rotor (42) and a movable valve component (14). The core module (200) is integrally assembled to the shell module (100) so that the core module (200) can be at least partially accommodated in the shell module (100). The valve body module (300) comprises a valve body (12) and is integrally assembled to the core module (200) and the shell module (100). The shell module (100), the core module (200) and the valve body module (300) are independently manufactured and are then assembled together. Total modularization of manufacturing and assembling processes of the electronic expansion valve is achieved, and therefore manufacturing and assembling process difficulty is greatly reduced.

Description

technical field [0001] The invention relates to an electronic expansion valve and a method for manufacturing the electronic expansion valve. Background technique [0002] The electronic expansion valve is an important part in the refrigeration / heating system, mainly used to regulate the flow of refrigerant fluid. [0003] The electronic expansion valve has a large number of components, and requires high assembly accuracy between the components. However, in the manufacture and assembly of conventional electronic expansion valves, a modular approach or a high degree of modular approach is not adopted. As a result, the difficulty of assembling the electronic expansion valve is increased, it is difficult to ensure the assembly accuracy of the electronic expansion valve, it is difficult to realize the all-round replaceable design of the electronic expansion valve, and it is also difficult to speed up the development speed of similar electronic expansion valves. [0004] Here, i...

AI Technical Summary

Problems solved by technology

However, in the manufacture and assembly of conventional electronic expansion valves, a modular approach is not adopted or a high degree of modular approach is not adopted

As a result, the difficulty of the electronic expansion valve assembly process is increased, it is difficult to ensure the assembly accuracy of the electronic expansion valve, it is difficult to realize the all-round replaceable design of the electronic expansion valve, and it is also difficult to speed up the development speed of similar electronic expansion valves

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