| 摘要 |
Disclosed is an electronic expansion valve, comprising a shell component (3) and a valve seat assembly, wherein the valve seat assembly comprises a first connection pipe (24) and a second connection pipe (23) which are located on the same straight line; the valve seat assembly forms a main valve chamber, the main valve chamber makes an included angle of an acute angle with the first connection pipe, the valve seat assembly is of an integrated structure and is welded and fixed to the shell component, and there is a preset distance between the radial extension line in the welding position of the two and the first connection pipe. When a valve body relatively rotates to perform welding, welding can be performed smoothly without being subject to the obstruction of the first connection pipe, to form an integrated valve body. Further disclosed is a manufacturing method for the electronic expansion valve. The electronic expansion valve is of an integrated structure, so that the leakage rate of the product can be reduced, and the production cost of the product can also be effectively controlled without increasing the thickness and quality of material. |
