摘要 |
A filter mainly includes a coil connecting frame, a plurality of coils received in the frame, and a first circuit board. The frame comprises a first surface with a plurality of first pins and a second surface, opposite to the first surface, with a plurality of second pins. The first pins are connected to the first circuit board, and the second pins are connected to an external electronic device while both the first and second pins are connected to the coils. The coil connecting frame further includes an electrical connecting portion between the first surface and the second surface with a plurality of conducting pins which penetrate through the first and second surfaces to connect to the circuit board and the second pins or external electronic device.
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