发明名称 CHOKE COIL
摘要 PROBLEM TO BE SOLVED: To provide a choke coil, wherein inductance is scarcely changed by manufacturing dispersion, reduction effect for noise generated from a switching power source is high, and characteristics and quality are superior. SOLUTION: This choke coil is provided with bonding parts 15, wherein a pair of gaps G are formed in one of parts constituting inner magnetic leg parts of a closed magnetic path core of a square shape with a cross in it, coil bobbins 12 are inserted in the inner magnetic leg parts in which the gaps are formed, and parts constituting outer magnetic leg parts are made to mutually abut against each other and bonded. Dispersion in inductance and leakage flux due to the dispersion in the gaps G is less, and a bead sound is also small.
申请公布号 JP2000124047(A) 申请公布日期 2000.04.28
申请号 JP19980290350 申请日期 1998.10.13
申请人 MATSUSHITA ELECTRIC IND CO LTD 发明人 OKUBO TOMIO;MORI KAZUSUKE
分类号 H01F27/24;H01F37/00;(IPC1-7):H01F37/00 主分类号 H01F27/24
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