JPS59138389U

JPS59138389U - Integrated structure of surge absorption circuit

Info

Publication number: JPS59138389U
Application number: JP3066383U
Authority: JP
Inventors: 徹宮島; 飯沼　日出雄
Original assignee: 三菱電機株式会社
Priority date: 1983-03-03
Filing date: 1983-03-03
Publication date: 1984-09-14

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 the drawing]

第１図ａ、　　ｂはサージ吸収回路とトランジスタの接
続関係を示す回路図。第２図及び第３図は上記第１図ａ
及び第１図すに対応するもので、トランジスタスイッチ
ングオフの際の電圧波形と電流波形を示す特性図、第４
図は従来のサージ吸収回路の構成を示す斜視図、第５図
はこの考案のサージ吸収回路の構成を示す斜視図、第５
図Ａ、　Ｂ。Ｃ及びＤは実施態様の異る４例を示す。第６図は絶縁物
により第５図Ａ、　Ｂ形式のものを包装した状態を示す
斜視図、第７図は第６図と同様に、第５図Ｃ，Ｄ形式の
ものを包装した状態を示す斜視図である。各図において、１・・・トランジスタ、２・・・２ａ。２ｂ共、・・サージ吸収回路、３・・・コンデンサ、４
・・・抵抗、５・・・ダイオード、６・・・リード線、
７・・・７ａ。７ｂ共、・・プリント板、８・・・３ａ、＄ｂ共・・・
平板電極、９・・・電線、である。なお各図中同一符号
は同−又は相当部分をあられす。FIGS. 1a and 1b are circuit diagrams showing the connection relationship between a surge absorption circuit and a transistor. Figures 2 and 3 are from Figure 1a above.
and a characteristic diagram showing the voltage waveform and current waveform when the transistor is switched off, corresponding to Fig. 1, and Fig. 4.
The figure is a perspective view showing the structure of a conventional surge absorption circuit, and FIG. 5 is a perspective view showing the structure of the surge absorption circuit of this invention.
Figure A, B. C and D show four different embodiments. Fig. 6 is a perspective view showing the state in which the products of types A and B in Fig. 5 are packaged with insulating material, and Fig. 7 is the state in which the products of types C and D in Fig. 5 are packaged, similar to Fig. 6. FIG. In each figure, 1...transistor, 2...2a. Both 2b...Surge absorption circuit, 3...Capacitor, 4
...Resistance, 5...Diode, 6...Lead wire,
7...7a. Both 7b...printed board, 8...3a, $b...
A flat plate electrode, 9... an electric wire. Note that the same reference numerals in each figure represent the same or corresponding parts.

Claims

[Scope of utility model registration request]

(1) Each element of the surge absorption circuit consisting of a capacitor, a diode connected in series with the capacitor, and a resistor connected in parallel is mounted on a single printed board, and each element of the surge absorption circuit is mounted on the printed circuit board. Connection is made by printed wiring on the board, an external connection terminal with a mounting hole is provided on the printed board, the external connection terminal and each element of the surge absorption circuit are connected by printed wiring, and the mounting hole of the external connection terminal is connected to the circuit board. An integrated structure of a surge absorption circuit characterized by being used both for connecting external electrodes and for fixing a printed board.

(2) Utility model registration claim No. (1) characterized in that one electrode of the capacitor of the surge absorption circuit and the cathode portion of the diode are respectively connected to external connection terminals.
An integrated structure of the surge absorption circuit described in Section 1.

(3) Utility model registration claim No. (1) characterized in that one electrode of a capacitor of a surge absorption circuit and an anode portion of a diode are each connected to an external liquid terminal.
An integrated structure of the surge absorption circuit described in Section 1.

(4) The integrated structure of the surge absorption circuit according to any one of claims (1) to (3), wherein the external connection terminal is made of a flat electrode.