Transformer and combined construction thereof

Abstract

The invention discloses a transformer and a combination structure thereof. A hollow winding part is formed on a horizontal wire frame for setting a primary side winding, a secondary side winding and an iron core, and the like; wherein, the primary side winding or the secondary side winding consists of U-shaped copper ring sheets; the winding part of the wire frame is formed with a plurality of caulking grooves which are matched with the shapes of the copper ring sheets and used for the copper ring sheets to be embedded; besides, a claming structure with the functions of reinforcing and combining is arranged in the caulking grooves and on the copper ring sheets, thus leading the copper ring sheets to be stably fixed on the wire frame and avoiding the displacement of the copper ring sheets caused by winding to affect a welding operation; besides, the lower side of the line frame is further provided with an electronic connection sheet so as to connect each copper ring sheet in a continuous shape, thus being capable of reducing leakage inductance and improving the working efficiency of the transformer.

Description

technical field [0001] The invention relates to a transformer and its combined structure. Background technique [0002] Transformer windings are generally composed of primary windings and secondary windings. At present, there is a transformer that uses copper sheets to replace primary windings or secondary windings, as shown in Figure 7. The schematic diagram of the frame 70 and the copper sheet 80 set on it, the wire frame 70 is roughly H-shaped, and its center is formed with a horizontal and hollow winding part 71, and the inner contour shape of several copper sheets 80 is matched with The winding portion 71 is equidistantly straddled on the winding portion 71. The copper sheets 80 are originally independent, and their two ends are respectively inserted on the circuit board 90 where the transformer is installed, and pass through the circuit board 90. The pre-laid lines (not shown in the figure) are connected to each other to form a continuous winding shape. The aforement...

AI Technical Summary

Problems solved by technology

[0005]2. In terms of characteristics: the several pieces of copper sheets 80 provided on the wire frame 70 were originally independent, but when soldered to the circuit board 90, Utilize the circuit on the circuit board 90 to be connected into a continuous shape, so that the current I flows in from one end of the copper sheet 80, and must pass through the circuit on the circuit board 90 to be sent to other copper sheets 80, but because the area of ​​the copper sheet 80 in contact with the air is too large , far away from the core of the magnetic circuit, which will cause a large leakage inductance, which will make the efficiency of the transformer worse

[0006] From the above, it can be seen that the existing transformer uses copper sheets to replace the primary or secondary side windings, and does not provide fixing measures for the copper sheets, which is easy to cause The displacement of the copper sheets affects the welding operation; in addition, because the copper sheets are connected to each other through the lines on the circuit board, the area in contact with the air is too large, resulting in leakage inductance, which affects the efficiency of the transformer

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