Expansion valve coil assembly

An expansion valve coil assembly, characterized by comprising,

• a coil unit and a housing,
• wherein the coil unit is provided with a mounting platform;
• the mounting platform is provided with a connecting portion, and the connecting portion protrudes out from the mounting platform;
• the housing is sleeved on the connecting portion, and fixedly connected to the mounting platform;
• the connecting portion has a plurality of sidewalls;
• and
• a sealing material is filled in a space between an inner side of the housing and the sidewall of the connecting portion;
• the plurality of sidewalls of the connecting portion are defined as a first sidewall, a second sidewall, a third sidewall and a fourth sidewall,
• the first sidewall and the third sidewall are symmetrically disposed,
• the second sidewall and the fourth sidewall are symmetrically disposed,
• a first recess is disposed on the first sidewall, a second recess is disposed on the second sidewall, a third recess is disposed on the third sidewall, and a fourth recess is disposed on the fourth sidewall;
• and
• the first recess, the second recess, the third recess and the fourth recess are in communication with each other, to form a ring-shaped recess around a circumference of the connecting portion.