An ultra-thin planar transformer skeleton

A flat transformer, skeleton technology, applied in the direction of transformer/inductor coil/winding/connection etc.

Active Publication Date: 2017-10-24
SHENZHEN VAPEL POWER SUPPLY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. The transformer height must meet <7.5mm;

Method used

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  • An ultra-thin planar transformer skeleton
  • An ultra-thin planar transformer skeleton
  • An ultra-thin planar transformer skeleton

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as Figure 1-3 As shown, an ultra-thin flat transformer bobbin includes a coil bobbin 24 and a winding post 11 arranged on the coil bobbin 24. A magnetic core assembly hole 23 is provided in the center of the winding post 11, and a transformer winding wrap guard leaf is arranged above it. 20. The transformer winding package guard leaf 20 and the coil bobbin 24 form a winding package limiting slot 21, and the primary side winding and the secondary side winding are wound in the winding package limiting slot 21, and the side of the coil bobbin 24 is connected with a secondary winding. The side extension bobbin 18, the other side of the coil bobbin 24 is provided with a set of primary side high-voltage winding surface mount pins 15, 151, 152 (wherein 152 is a center tap), a set of first primary side auxiliary winding surface mount pins 16, 161 A group of second primary side auxiliary winding surface mount pins 17, 171 are provided on the same side of the coil bobbin 24...

Embodiment 2

[0032] Such as Figure 4 As shown, except that the positions of the secondary-side extension frame 18 and the surface-mount pins 17 and 171 of the second primary-side auxiliary winding are exchanged, other structures are the same as those of the first embodiment.

Embodiment 3

[0034] Such as Figure 5 As shown, except that the positions of the surface-mount pins 15, 151, 152 of the primary-side high-voltage winding and the surface-mount pins 16, 161 of the first primary-side auxiliary winding are exchanged, other structures are the same as those of the first embodiment.

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Abstract

The invention discloses an ultra-thin planar transformer frame, which comprises a coil frame and a winding post arranged on the coil frame. A magnetic core assembly hole is provided in the center of the winding post, and a transformer winding wrap guard leaf is provided above the transformer winding post. The wrapping leaf and the coil frame form a winding package limit slot, and the primary side winding and the secondary side winding are wound in the winding package limit slot. One side of the coil frame is connected with a secondary side extension frame, and the other side of the coil frame There is a set of primary-side high-voltage winding surface-mount pins, a set of primary-side auxiliary winding surface-mount pins, and a set of secondary-side auxiliary winding surface-mount pins on the side of the secondary side extension frame. This kind of ultra-thin planar transformer skeleton has a transformer height of <7.5mm, which solves the PCB design and surface mount installation requirements of AC / DC and high voltage input DC / DC module power supplies, and meets the needs of multiple primary side surface mount windings. There are functional insulation and basic withstand voltage requirements between them.

Description

technical field [0001] The invention relates to a transformer skeleton, and more specifically relates to an ultra-thin flat transformer skeleton. Background technique [0002] With the continuous development of switching power supply technology, the requirements for its size and conversion efficiency continue to increase, and it has been widely used and developed as a standardized, ultra-thin, miniaturized and high-efficiency module power supply. Especially for AC / DC and high-voltage input DC / DC module power supplies, due to their high input voltage, the safety distance between the primary and secondary is required to be about 2-5 times larger than that of ordinary low-voltage input DC / DC module power supplies , Secondly, because of its industry-standard dimensions and input and output pin positions are industry-standardized, and its ultra-thin and miniaturized structure (industrial standard half-brick module power supply (61.0*57.9*12.7mm) and full-brick module power supply...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F27/30
Inventor 刘取仁王庆棉
Owner SHENZHEN VAPEL POWER SUPPLY TECH
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