Method for producing multi-layer planar transformer
A flat-panel transformer and production method technology, applied in the directions of transformers, fixed transformers, transformer/inductor coils/windings/connections, etc., can solve the problems of uncompact transformer structure, high transformer cost, complicated manufacturing process, etc. effect, low cost and simple production process
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Embodiment 1
[0043] Such as figure 1 Shown is a piece of metal plate 1 provided with positioning holes 21, according to Figure 3a The shape shown is directly punched metal plate 1 to obtain a piece of coil plate, the coil plate after punching is as follows figure 2 As shown, ten coils of the same shape are arranged on the coil plate, and a magnetic core hole 20 is arranged in each coil. Assuming that the connector on the left side of each coil is the starting end, and the connector on the right side is the end, punching The final coil is connected to the metal plate 1 at the start connector 5 and the end connector 6 .
[0044] According to the needs of producing seven-layer transformers, the shape shown in 3a can be replaced by Figure 3b-3d Punch out the shape shown to get another 3 coil plates with different shapes, according to Figure 3a-3d A coil plate punched out of the shape shown is called a primary coil plate, or replace the shape shown in 3a with Figure 4a~4c The shape shown...
Embodiment 2
[0054] The process of producing the coil plate in embodiment 1 is changed, specifically, in the process of punching out the primary and secondary coils, the metal is punched out at the starting end connector and the end connector at the same time. hole 25, such as Figure 12 shown.
[0055] Transform the process of producing the transformer in Example 1, specifically the transformation involving the process of preparing the connection holes in step a and step c, as follows:
[0056] In step a, during the process of punching out the primary and secondary coils, metal holes 25 are punched out at the start connector and the end connector at the same time, as Figure 12 shown.
[0057] Step b is the same as in Example 1.
[0058] In step c, holes are drilled at positions where the coil connectors on the hot-pressed laminate coincide with the metal holes 31 to form connection holes, and conductive metal is plated on the connection holes.
[0059] The following steps are the sam...
Embodiment 3
[0062] In this embodiment, in step a of the method for the seven-layer planar transformer produced in embodiment 1, the layout of the coils punched out on the metal plate is changed. In this example, you can follow Figure 3a-3d as well as Figure 4a ~ Figure 4c For the shapes shown in , different shapes of coils are punched out from a sheet of metal. In the subsequent step b, according to the needs of the transformer to be produced, the primary and secondary coils are arranged in order, and the primary coil plates at the same position on each metal plate are placed in sequence, and the end connectors of the first layer Overlapping with the start connector of the second layer, the end connector of the second layer overlaps with the start connector of the third layer, and the end connector of the third layer overlaps with the start connector of the fourth layer; each metal plate The secondary coil boards at the same position on the top overlap, and the end connectors of the f...
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