Switching power supply transformer for external power supply of display

Abstract

The invention discloses a switching power supply transformer for an external power supply of a display. The transformer is characterized by comprising a framework, a magnetic core, a primary winding unit, a secondary winding unit and pins, wherein the pins are arranged at the bottom of the framework; the primary winding unit and the secondary winding unit are wound on the framework, and connected with the pins by lead grooves in the framework; and distances between the lead grooves are less than 7mm. The safety of the transformer can further be ensured by increasing lead distances; the secondary winding unit adopts a double insulation line, so that a winding space of the transformer can be used to the greatest extent, and a space utilization ratio can reach 100%; a ferrite serves as the magnetic core, so that the transformer is applicable to a wider temperature range; and energy consumption and heat can be reduced effectively.

Description

technical field [0001] The invention relates to a switching power supply transformer for an external power supply of a display. Background technique [0002] With the thinning of consumer electronics and the application of touch technology, according to different market demands, in terms of monitors and integrated computers, the switching power supply modules originally installed in them have been replaced by external small power adapters. This is not only conducive to reducing the thickness of the product, saving costs, but also conducive to the standardization and mass production of adapters. [0003] However, the primary winding unit and secondary winding unit of switching power supply transformers currently on the market use ordinary enameled wires, resulting in a relatively low utilization rate of transformer winding space, and the volume of the transformer cannot be reduced to meet the market demand for miniaturization. [0004] At the same time, the ordinary enameled...

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Problems solved by technology

[0003] However, the primary winding unit and secondary winding unit of the switching power supply transformers currently on the market use ordinary enameled wires, resulting in a relatively low utilization rate of the transformer winding space, and the volume of the transformer cannot be reduced, and it cannot meet the market demand for miniaturization.

[0004] At the same time, the ordinary enameled wire used in the primary winding unit and the secondary winding unit has relatively poor insulation effect due to the characteristics of the enameled wire itself, which is not conducive to the stability of the transformer and affects the product quality.

[0005] Because the magnetic core used in the current transformer is an ordinary magnet, its power consumption is high, and it will generate a lot of heat during operation, not only the use cost is relatively high, but also the heat generated will affect the stability of the transformer and the safety is relatively high. Low

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