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Electronic transformer

A technology for electronic transformers and terminal blocks, which is applied in the directions of transformer/inductor cores, transformer/inductor components, transformer/inductor coils/windings/connections, etc., which can solve the difficulty of increasing the process of the transformer system and consume labor Working hours and other issues, to achieve the effect of convenient procurement, reduce processing man-hours, and convenient assembly

Active Publication Date: 2013-04-10
MORNSUN GUANGZHOU SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, wrapping tape and adding insulating sheets consumes man-hours and increases the difficulty of the process of the transformer and even the whole system

Method used

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Embodiment Construction

[0038] Such as Figure 1 to Figure 10 As shown, the electronic transformer of the preferred embodiment of the present invention includes a coil bobbin 1, an isolation cover 2 and a magnetic core 3, which adopts a horizontal installation structure to achieve the miniaturized size design requirements of the module power supply to the greatest extent.

[0039] Among them, such as figure 1 with figure 2 As shown, the coil bobbin 1 of the present preferred embodiment is injection-molded from bakelite or resin with insulating properties. It includes a wire winding part 10 and two supporting seats. The wire winding part 10 is a cylinder with a hollow inner cavity 12. The cross-sectional shape of the cylinder is square, and two steps of stepped support bases extend outward and downward from the bottoms of both ends respectively. The upper and lower steps are the support base 14 and the terminal base 15 of the support base, and the terminal base 15 The length D1 is slightly larger than th...

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PUM

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Abstract

The invention discloses an electronic transformer, which comprises a winding framework (1) and a magnetic core (3), wherein the winding framework (1) is provided with a winding terminal (17); the magnetic core (3) is arranged on the winding framework (1); the electronic transformer is characterized by also comprising an insulating isolating cover (2) with an opening (2a), wherein a cover body of the insulating isolating cover (2) covers an exposed surface of the magnetic core (3); the winding framework (1) is locally exposed from the opening (2a) of the isolating cover (2); and the winding terminal (17) is arranged on an exposed part of the winding framework (1). The electronic transformer has the advantages of small and skillful size, simple manufacturing process and capability of guaranteeing sufficient electric safety distances between the magnetic core and the winding terminal and between the transformer and other electronic devices on a PCB (Printed Circuit Board) substrate.

Description

Technical field [0001] The invention relates to an electronic transformer, which is mainly used in switching power supplies and module power supplies. Background technique [0002] With the increase in power density of switching power supplies, especially module power supplies, the transformer, as its core power device, has detailed hard and fast regulations on safety distances such as clearances and creepage distances. At the same time, the volume size is also hoped to be as small as possible. [0003] The existing transformer is generally composed of a skeleton, a coil, and a magnetic core. A plurality of coils are wound on the skeleton, and terminal blocks are respectively arranged on both sides of the frame, and a plurality of metal terminals for electrically connecting the coil windings and the circuit board are inserted into the terminal blocks. The magnetic cores are assembled to face each other through the central axis through holes of the skeleton and placed on the termi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F27/00H01F27/26H01F27/30H01F27/29
Inventor 向宇峰
Owner MORNSUN GUANGZHOU SCI & TECH
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