JPS59143008U

JPS59143008U - flyback transformer

Info

Publication number: JPS59143008U
Application number: JP3773683U
Authority: JP
Inventors: 小林　泰史
Original assignee: 三洋電機株式会社
Priority date: 1983-03-15
Filing date: 1983-03-15
Publication date: 1984-09-25

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は従来のフライバックトランスで使用される低圧
コイルボビンを示す図、第２図はそれに一次コイル及び
三次コイルを巻装した状態を示す　図、第３図はその要
部断面図、第４図は本考案の、フライバックトランスで
使用される低圧コイルボビンを示す図、第５図はそれに
一次コイル及び三次コイルを巻装した状態を示す図、第
６図はその要部断面図、第７図は第４図の平面図、第８
図は本考案の他の実施例を示す要部断面図である。２・・・円筒状部、３・・・外部接続用端子、４・・・
ターミナルボード、７・・・−次コイル、７ａ・・・−
次コイルの巻き終り部分、９・・・三次コイル、１１・
・・低圧コイルボビン、１２・・・第１鍔、１２ａ・・
・切欠、１２ｂ・・・切欠端面、１３・・・第２鍔、１
３ａ・・・切欠、１４・・・凹所、１５・・・挿通溝、
１６・・・突片。Fig. 1 is a diagram showing a low-voltage coil bobbin used in a conventional flyback transformer, Fig. 2 is a diagram showing a state in which a primary coil and a tertiary coil are wound around it, Fig. 3 is a sectional view of its main part, and Fig. 4 The figure shows a low-voltage coil bobbin used in a flyback transformer according to the present invention, FIG. 5 shows a state in which a primary coil and a tertiary coil are wound around it, FIG. The figure is a plan view of Figure 4,
The figure is a sectional view of a main part showing another embodiment of the present invention. 2... Cylindrical part, 3... External connection terminal, 4...
Terminal board, 7...-Next coil, 7a...-
Winding end portion of the next coil, 9...Tertiary coil, 11...
...Low pressure coil bobbin, 12...First flange, 12a...
・Notch, 12b... Notch end surface, 13... Second collar, 1
3a...notch, 14...recess, 15...insertion groove,
16... protrusion.

Claims

[Scope of utility model registration request]

A terminal board in which a plurality of external connection terminals are implanted is provided on one end side of the cylindrical part of the low-voltage coil bobbin on which the primary coil is wound. 2 collars are provided in this order from the terminal board side, and the winding end portion of the secondary coil is connected to the external connection terminal through the notch,
In a flyback transformer in which a tertiary coil is wound in a recess formed between the first and second flanges, a cylindrical portion between the first and second flanges forming a bottom of the recess is provided. In addition to increasing the diameter, the first
An insertion groove is provided that extends from the notch of the flange to the notch of the second flange, into which the end of winding of the primary coil is inserted; The flyback transformer is provided with a projecting piece located at a position, and the projecting piece prevents the winding end portion of the secondary coil from coming into contact with the tertiary coil.