Fixed mold core of injection mold of plastic housing of mobile phone

The utility model relates to a constituent part of an injection mold of a plastic housing of a mobile phone, in particular to a fixed mold core of the injection mold of the plastic housing of the mobile phone, and solves the problem that connection lines are produced due to uneven temperature at the inner part of a mold core cavity. The fixed mold core comprises a mold body of the fixed mold core, wherein, cooling water ways are arranged in the mold body of the fixed mold core; the mold core cavity is formed on a matching end surface of the mold body of the fixed mold core; a front-back through-hole positioned between the cooling water ways and the mold core cavity and at least equal to the mold core cavity in width is formed right below the mold core cavity of the mold body of the fixed mold core; a temperature equalizing device at least equaling to the mold core cavity in length is arranged in the front-back through-hole; and the temperature equalizing device comprises an upper cover plate, a lower bottom plate and a heat conduction pipe pressed and fixed between the upper cover plate and the lower bottom plate. By arranging the temperature equalizing device in the fixed mold core and utilizing the characteristic of quick temperature equilibrium of the heat conduction pipe at the inner part of the temperature equalizing device, temperature equilibrium is achieved in the mold core cavity, so that the problem of the connection lines on a product of the plastic housing of the mobile phone is solved, the cooling speed of the injection molding product can be quickened, and the work efficiency can be improved. The fixed mold core has a simple structure, is easy for standardization, and is suitable for popularization and application.