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Prismatic transformer

A transformer and prismatic technology, applied in the field of transformers, can solve the problems of poor withstand voltage and small footprint, and achieve the effects of expanding PCB area, improving production efficiency and good stability.

Inactive Publication Date: 2010-02-03
MORNSUN GUANGZHOU SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a miniaturized multi-pin surface-mounted prismatic transformer, which has a fixed appearance shape, takes up little space, and the distance between the pin terminals is sufficient, which can effectively solve the problem of poor voltage resistance of the product, and has better controllability

Method used

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Experimental program
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Embodiment 1

[0025] One of the embodiments of the present invention is as figure 1 , figure 2 As shown, a prismatic transformer includes a magnetic core and a skeleton. The skeleton is composed of a prismatic shell 1 and pin terminals 2. The prismatic shell 1 is also provided with a top cover 12, and the pin terminals 2 are surface mount pin. The prismatic shell 1 is provided with 8 side edges in total, that is, the prismatic shell 1 includes 8 side walls 11 in total, and the cross section of the prismatic shell 1 is a regular octagon. The magnetic core 4 is placed in the prismatic housing 1; set every three pin terminals 2 as a group, evenly distributed, and the bottom surface of each side wall 11 of the prismatic housing 1 is provided with a set of pins for connecting with a group of pins. The two lead grooves 3 corresponding to the terminal 2. The center line of the bottom surface of each side wall 11 is used as the axis of symmetry of the two lead grooves 3 on the bottom surface, a...

Embodiment 2

[0030] The second embodiment of the present invention is as image 3 , Figure 4 As shown, the difference from Embodiment 1 is that a group of pin terminals 2 are provided on five side walls 11 of the prismatic housing 1 of the prismatic transformer in this embodiment, that is, there are 15 pin terminals in total. 2; On the corresponding side wall 11 provided with the pin terminals 2 , each lead groove 3 is located between two adjacent pin terminals 2 . A total of five sets of pin terminals 2 are used, and the lead wires of each winding 5 on the magnetic core 4 are respectively wound on the corresponding pin terminals 2 through the lead slots 3 .

[0031] For an explosion-proof analog safety barrier, using a general-purpose guide rail product housing, if it is necessary to realize the isolation and transmission of two-way signals at the same time, and arrange components on one side, the substrate area requirements are very tight. In this embodiment, according to the paramete...

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PUM

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Abstract

A prismatic transformer comprises a magnetic core and a frame and is characterized in that the frame is composed of a prismatic shell and a pin terminal, wherein the magnetic core is arranged in the prismatic shell, each sidewall of the prismatic shell is provided with a lead groove, and the lead of each winding on the magnetic core is respectively wound on the corresponding pin terminal through the lead groove. The prismatic transformer of the invention has fixed appearance, small occupying space and enough intervals between pin terminals, can effectively solve the problem of defective pressurization of product and also has better controllability.

Description

technical field [0001] The invention relates to a transformer, in particular to a miniaturized patch transformer. Background technique [0002] At present, traditional transformers used on isolation transmitters (isolation amplifiers) are generally installed in the following two ways: (1). The windings are soldered on the printed circuit board (PCB), but during transportation or moving , The wires of the transformer are easily disconnected, resulting in poor product performance and product damage; moreover, there are also poor solder joints, which cause the wires and pads to pull sharply, generate sharp discharges, and reduce the performance of the product's withstand voltage. (2). Use the in-line mold to put the transformer into the mold to reduce the defect rate of the product and increase the reliability at the same time. However, this method wastes a lot of printed circuit boards (PCB), and the in-line mold takes up a lot of space , resulting in increased difficulty whe...

Claims

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Application Information

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IPC IPC(8): H01F30/06H01F27/30H01F27/02H01F27/29
Inventor 陈超扬高岁娟
Owner MORNSUN GUANGZHOU SCI & TECH