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公开(公告)号：EP3923307A1
公开(公告)日：2021-12-15
申请号：EP20852993.3
申请日：2020-05-12
发明人： LIANG, Yongtao , LIU, Weiping , ZHI, Yanjun
摘要： This application provides a magnetic integrated device, a power conversion circuit, a charger, and an electric vehicle, and pertains to the field of power electronics technologies. The magnetic integrated device includes a magnetic core, a first transformer winding, and a second transformer winding, where the first transformer winding and the second transformer winding are separated and wound, and a first air gap is formed at separation. A magnetic line may pass through the first air gap to form leakage inductance, and the leakage inductance may be equivalent to resonant inductance in the power conversion circuit. Therefore, there is no need to separately dispose an inductor winding in the magnetic integrated device. This effectively reduces a volume and a weight of the magnetic integrated device. In addition, the power conversion circuit that uses the magnetic integrated device also has a relatively small volume and relatively high power density.
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公开(公告)号：EP4187562A1
公开(公告)日：2023-05-31
申请号：EP21855459.0
申请日：2021-08-06
发明人： HU, Xiaoqing , ZHI, Yanjun , JING, Xiaming
摘要： This application provides a power inductor, a preparation method of a power inductor, and a system in package module, and the power inductor is applied to the system in package module. The power inductor includes a winding and a metal magnetic powder core. The metal magnetic powder core is configured to support the winding, and the winding uses a metal conductive sheet. During assembly, the metal magnetic powder core is integrated with the winding through pressing, the metal magnetic powder core wraps the winding, and the metal magnetic powder core is insulated from the winding. The winding has a first pin and a second pin, and the first pin and the second pin are exposed on different surfaces of the metal magnetic powder core. Pins are separately disposed on two different surfaces of the power inductor, so that the power inductor can match a system in package module in which components are arranged in different directions. Therefore, disposing of the inductor is facilitated. In addition, the winding is formed by integrally pressing the metal conductive sheet and the metal magnetic powder core, so that inductance of the power inductor is increased, loss of the inductor is reduced, and miniaturization of the inductor is improved.
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