COIL COMPONENT

• Main Authors: KITAOKA MIKIO, OTA TOMOTSUGU, TAKIGUCHI TAKASHI
• Format: Patent
• Language: English; Japanese
• Published: 03.08.2015
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; INDUCTANCES; MAGNETS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; TRANSFORMERS

PROBLEM TO BE SOLVED: To provide a coil component which decreases a core temperature compared to a conventional coil component even in the usage in which the heating value of a core becomes large and thereby achieves downsizing and weight reduction.SOLUTION: A coil component includes: a coil 2; and a pair of upper and lower part cores 4, 5 which encloses an outer periphery of the coil 2 and forms a closed magnetic circuit. The coil component is placed in a housing in which a bottom surface of the lower part core 5 has a heat radiation function. A metal plate 7 having heat conductivity higher than that of the lower part core 5 is attached to an outer side surface of the lower part core 5. 【課題】コア発熱量が大きな用途であっても、従来と比較してコア温度の低減化を図ることができ、よって小型化および軽量化も図ることが可能になる巻線部材を提供する。【解決手段】コイル２と、このコイル２の外周を囲繞して閉磁路を形成する一対の上下部コア４、５とを有し、下部コア５の底面が放熱機能を有する筐体に載置される巻線部品において、下部コア５の外側面に、下部コア５よりも熱伝導率の高い金属板７を取り付けた。【選択図】図１