JPS58156227U

JPS58156227U - liquid level sensor

Info

Publication number: JPS58156227U
Application number: JP5485982U
Authority: JP
Inventors: 淳松井
Original assignee: ティーディーケイ株式会社
Priority date: 1982-04-14
Filing date: 1982-04-14
Publication date: 1983-10-19

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図はこの考案の一実施例を示す縦断面図であり、第
２図はその一部の構成を示す概略断面図、第３図は前記
実施例の液位センサに組み込まれた回路装置を示す回路
図である。１・・・液位センサ、２・・・ケース、２Ａ・・・電極
保持部、２Ｂ・・・回路装置保持部、２Ｃ・・・螺合部
、３・・・導線、４・・・フェライト電極、５・・・樹
脂、６・・・回路基板、７Ａ、　　７Ｂ、　　７Ｃ・・
・端子、Ｑ□、Ｑ２・・・トランジスタ、Ｄｌ・・・ダ
イオード、Ｄ２・・・ツェナダイオード、Ｒ工、Ｒ２・
・・抵抗、ＳＷ・・・切換スイッチ、Ｌ、Ｐ・・・ラン
プ、Ｅ・・・電源。Fig. 1 is a longitudinal sectional view showing an embodiment of this invention, Fig. 2 is a schematic sectional view showing a part of the structure, and Fig. 3 is a circuit device incorporated in the liquid level sensor of the above embodiment. FIG. DESCRIPTION OF SYMBOLS 1...Liquid level sensor, 2...Case, 2A...Electrode holding part, 2B...Circuit device holding part, 2C...Screwing part, 3...Conducting wire, 4...Ferrite Electrode, 5... Resin, 6... Circuit board, 7A, 7B, 7C...
・Terminal, Q□, Q2...Transistor, Dl...Diode, D2...Zena diode, R, R2・
...Resistance, SW...Choice switch, L, P...Lamp, E...Power supply.

Claims

[Scope of utility model registration request]

(1) A conductive ferrite electrode attached to one end of a cylindrical insulating case so that a part is exposed, a circuit device housed and attached to the other end of the insulating case, and a ferrite electrode that passes through the insulating case. A liquid level sensor comprising: and a conductive wire connecting the circuit device.

(2) The liquid level sensor according to claim 1, wherein the conducting wire is inserted into and connected to a fitting hole provided in a ferrite electrode.

(3) Utility model registration claim 1, characterized in that the circuit device consists of a detection circuit and a test circuit formed on a circuit board, and it is possible to derive a power supply terminal, a detection terminal, and a test terminal. The liquid level sensor described in item 1.