| 摘要 |
An apparatus and method for fabricating a stator of a super-high-speed induction motor, in which the process of loading a stator on which a coil is completely wound into a mold, injecting a functional resin into a chamber, converting the inside of the chamber into the vacuum state, and pressurizing the inside of the chamber is carried out so that bubbles are removed from the inside and the surface of the functional resin and the functional resin is completely filled between the inner circumference of the stator and the inner circumference of the mold, thereby maximizing heat conductivity and insulation, preventing the stator from deteriorating, and improving the performance and endurance of the super-high-speed induction motor. In addition, since the vacuum step and the pressurizing step include heating the mold, in the vacuum step, the viscosity of the functional resin can be decreased so that the process of removing gas inside the stator can be efficiently performed and the solidification time of the functional resin can be decreased so that the working time can be decreased, and in the pressurizing step, the molding that is under pressing force is completely solidified. Furthermore, the height of the receiving section of the mold and the height of the central shaft are adjusted so that the winding section of the stator is completely immersed, and the chamber is provided with a vacuum tube and a pressurizing tube in order to facilitate the step of injecting the functional resin and the pressuring step. The method includes (a) loading a stator having a coil, which is completely wound on a core, into a mold, (b) injecting a functional resin into the mold so that a winding section of the stator is immersed, (c) inserting the mold, into which the functional resin is injected, into a closed chamber, (d) removing bubbles by converting the inside of the chamber into a vacuum state through a vacuum tube, which is provided in the chamber, so that the functional resin is filled across the entire portions of the stator, including the core and the coil, and between the inner circumference of the stator and the inner circumference of the mold, and (e) removing bubbles by increasing the gas pressure in the chamber, so that the functional resin is filled across the entire portions of the stator, including the core and the coil, and between the inner circumference of the stator and the inner circumference of the mold. |
| 主权项 |
1. An apparatus for fabricating a stator of a induction motor, the stator formed by a coil surrounding a core and fixed thereto by a functional resin, comprising:
a mold receiving the stator and including
a cylindrical can-shaped receiving section having a height greater than that of a winding section of the stator such that the stator with the coil completely wound on the core is completely received therein, anda cylindrical central shaft fixed on a central portion of a bottom surface of the receiving section and having a height greater than that of the receiving section for preventing the functional resin from sticking to an upper end of the cylindrical central shaft; and a chamber receiving the mold therein and comprising
a heater fixed in a bottom wall portion of the chamber for heating the mold,a vacuum tube provided in an upper side of the chamber for evacuating the interior of the chamber, anda pressurizing tube separate from the vacuum tube in the upper side of the chamber for pressurizing the chamber with a gas, thereby removing residual bubbles inside and on a surface of the functional resin. |
