| 摘要 |
PURPOSE:To contrive miniaturization, lightening and reduction of cost by arranging a space in the middle of the laminating direction of laminated plates of power transformer and inserting an evaporation part of a heat pipe into the gap to obtain the good heat conductive condition. CONSTITUTION:The large quantity of heat generated from a power transformer 3, a magnetron 13 and an electron range control block 14 at cooking operation of an electron range 1 is emitted by heat exchange with the air flow sent by a cooling fan 12. The heat filled insided is deprived as the evaporation heat which evaporates an operation liquid inside an evaporation part 7a of a heat pipe 6 and is carried to a condensatio part 8 through a pipe 9. Then the heat is exchanged with the air flow sent from a cooling fan 12 by the condensation part 8 and a dissipation fin and is emitted. Because the heat inside the power transformer 3 can be taken out efficiently, the winding diameter of coil of power transformer 3 is formed thinly and a lamination plate 4 can be made smaller. Accordingly, miniaturization and lightening of the main body of power transformer 3 can be contrived and also cost can be reduced. |
