| 摘要 |
A valve base assembly for an electronic expansion valve and manufacturing method thereof, the valve base assembly comprising: a valve base (12) provided with a valve cavity (121); a second connecting tube (14) fixedly connected to the side wall of the valve base (12), wherein a first central axis (S1) of the second connecting tube (14) is perpendicular to a second central axis (S2) of the valve base (12); along any cross section on which the first central axis (S1) is located, the edge surface (1431) of the second connecting tube (14) does not surpass the inner circumferential surface (1211) of the valve cavity (121). The present valve base assembly ensures that the end part of the second connecting tube (14) does not extend into the valve cavity (121) and will not damage the integrity of the valve cavity (121), which is beneficial for improving the noise during the flow of refrigerant caused by irregular cavity shape. In addition, the coordinating length of the connecting tubes (13, 14) and the valve base (12) can be fully ensured, which is beneficial for improving welding strength, and the consistency of the size of the connecting tubes (13, 14) assembly can also be ensured. |
