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Switching power supply module structure

A modular structure, switching power supply technology, applied in circuits, electrical components, transformer/inductor components, etc., can solve the problems of low production efficiency, increased transformer size, and different operator levels, to improve productivity and power. Density, the effect of reducing product volume

Active Publication Date: 2017-12-15
MORNSUN GUANGZHOU SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (1) The transformer windings are wound on the top and bottom surfaces of the frame, which determines that in occasions where the isolation requirements of the primary and secondary sides are high, at least one side of the PCB below the transformer corresponding to the coil cannot be routed or vias, otherwise it will cause The insulation voltage drop between the input and output of the switching power supply of the transformer can be optimally solved by adding one or more layers of insulating tape outside the coil, adding an insulating gasket, etc., but the production of the transformer requires Consumes more manpower and material costs, and at the same time increases the size of the transformer
[0006] (2) The signal connection between the two substrates can only be realized by using terminals outside the transformer. However, adding terminals means increasing the cost and is not conducive to compressing the space to further reduce the product volume and improve the power density of the product
[0008] The problem with this product is that since there is only one set of pins on one side of the transformer, it is necessary to manually position the transformer and the circuit board during production, and then fix the transformer and the circuit board by welding.
This structure of the transformer will inevitably lead to the inability to realize automatic production, resulting in low production efficiency, and the level of operators is different, resulting in unstable product quality and reliability

Method used

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Examples

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no. 1 example

[0027] image 3 It is a product structure diagram of the first embodiment of the present invention, a switching power supply module structure, including a first circuit board 1 , a second circuit board 2 and a transformer 3 . Wherein, the first circuit board 1 and the second circuit board 2 are respectively located on both sides of the transformer 3, the transformer 3 includes a group of combined magnetic cores and a skeleton, the skeleton includes a hollow winding part, and the winding part is used for winding wires, The hollow part of the winding part is used to carry the central column of the combined magnetic core; two baffles are arranged at both ends of the winding part along the direction perpendicular to the central axis of the winding part, and the two baffles are parallel to limit the winding There are two terminal blocks at both ends of each baffle, the horizontal inner surface of each terminal block is on the same plane as the inner surface of the baffle, and each ...

no. 2 example

[0033] After the winding of the primary and secondary windings of the power transformer is completed, the primary pin and the secondary pin can also be connected through one or more wires. Two or more pins on the surface, the position of the pin on the substrate can be a signal connection point, replacing the electrical connection scheme that must be realized through terminal connection or transformer extension terminals between traditional multi-PCBs, for example, the upper substrate as On the input side of the switching power supply, the lower substrate is used as the output side of the switching power supply. The switching power supply is electrically isolated through a transformer and an optocoupler. The optocoupler is placed on the lower substrate. Then the signal of the optocoupler can be transmitted to the upper substrate by connecting two wires. That is to pass to the input side.

[0034] When the power module product needs to have electronic devices such as optocouple...

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PUM

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Abstract

The invention provides a switching power supply module structure. The structure comprises a first circuit board, a second circuit board and a transformer, the transformer is provided with at least four sets of pins, the two ends of the first circuit board and the two ends of the second circuit board are provided with a plurality of connection terminals respectively, and the pins achieve the electrical connection of the transformer and the two circuit boards through the connection terminals. The small size of a product and automatic production can be achieved.

Description

technical field [0001] The patent of the present invention relates to a switching power supply module structure, in particular to a switching power supply module structure requiring two or more PCB boards. Background technique [0002] With the continuous improvement and development of power supply products, the requirements for transformers are becoming more and more diverse. In the prior art, the transformer is generally electrically connected to the PCB board by means of single-sided connection, such as figure 1 As shown, it is a kind of transformer commonly used in the prior art. Mainly, the transformer 91 is arranged on the circuit board 96, and the pins 92, 93 of the primary side and the secondary side of the transformer 91 are directly welded on the circuit board, and are electrically connected with the circuit on the circuit board 96, And then play its function of variable pressure. Both primary and secondary are on the same circuit board. [0003] However, such ...

Claims

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Application Information

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IPC IPC(8): H01F27/06H01F27/29
CPCH01F27/06H01F27/29H01F2027/065Y02B70/10
Inventor 李永昌郭启利陈波
Owner MORNSUN GUANGZHOU SCI & TECH