| CPC H01F 27/306 (2013.01) [H01F 27/006 (2013.01); H01F 27/266 (2013.01); H01F 27/2866 (2013.01); H01F 27/29 (2013.01); H01F 27/40 (2013.01)] | 20 Claims |
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1. An integrated transformer, comprising:
at least one substrate, wherein the at least one substrate defines a plurality of annular accommodating grooves, each annular accommodating groove divides a corresponding substrate into a central part surrounded by the each annular accommodating groove and a peripheral part arranged around the each annular accommodating groove, each central part defines a plurality of inner through holes therethrough, and each peripheral part defines a plurality of outer through holes therethrough; and a diameter of each of the plurality of inner through hole is about 1.5˜ 3.1 mm;
a plurality of magnetic cores each accommodated in a respective one of the annular accommodating grooves;
a plurality of transmission wire layers, wherein on each of two opposite sides of the at least one substrate is arranged one of the transmission wire layers, each of the transmission wire layers comprises a plurality of conductive wire patterns spaced apart from each other and arranged along a circumferential direction of a corresponding one of the annular accommodating grooves, each of the conductive wire patterns bridges one of the inner through holes and one of the outer through holes; and
a plurality of conductive connectors arranged in the inner through holes and the outer through holes, and configured to connect in order the conductive wire patterns on the two transmission wire layers on each of the at least one substrate to form a plurality of coil circuits capable of transmitting current around the magnetic core, wherein each of the plurality of coil circuits is located around a corresponding one of the plurality of magnetic cores;
wherein the central parts and the peripheral parts of the at least one substrate, the magnetic cores and the conductive connectors assembled on the at least one substrate, and the transmission wire layers on both sides of the at least one substrate cooperatively constitute a plurality of transformers and filters arranged according to preset arrangement manners, at least one of the transformers and at least one of the filters are electrically connected to form a group of electromagnetic assemblies, and any two groups of electromagnetic assemblies are not electrically connected with each other on the at least one substrate; and
wherein the plurality of inner through holes comprise a plurality of first inner through holes and second inner through holes; a connecting line of centers of all the first inner through holes forms a first circular trajectory, and a connecting line of centers of all the second inner through holes forms a second circular trajectory; a center of the first circular trajectory and a center of the second circular trajectory coincides, a radius of the second circular trajectory is larger than a radius of the first circular trajectory, and distances between the center of each of the second inner through holes and the centers of two adjacent first inner through holes are equal;
the plurality of the outer through holes comprise a plurality of first outer through holes and second outer through holes; the plurality of conductive wire patterns of each of the transmission wire layers comprise a plurality of input lines and coupling lines; each of the input lines bridges one of the first inner through holes and one of the first outer through holes; and each of the coupling lines bridges one of the second inner through holes and one of the second outer through holes;
the input lines are divided into a plurality of input line groups, and the coupling lines are divided into a plurality of coupling line groups; each of the input line groups comprises at least one of the plurality of input lines, and each of the coupling line groups comprises at least one of the plurality of coupling lines;
each of the input line groups in the same one of the transmission wire layers comprises only one of the input lines, and each of the coupling line groups comprises only one of the coupling lines; in the same one of the transmission wire layers, each input line and each coupling line are alternately arranged along the circumferential direction of the magnetic cores.
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