| 摘要 |
PURPOSE:To promote heat radiation from a coil and prevent faults by filling a material with a high coefficient of thermal conductivity in the gap between the conductive coil of a magnetic field generating element and a yoke. CONSTITUTION:The filling material 15 with a high coefficient of thermal conductivity is filled in the gap between the conductive coil 14 of the magnetic field generating element 10 and the yoke 13, thereby dropping the thermal resistance between the coil 14 and the yoke 13. Consequently, heat arising when information is recorded or erased is easily propagated to the yoke 13 to promote heat radiation. Therefore temperature in the vicinity of the magnetic field element 10 never goes up excessively. |
