JPS6072533U

JPS6072533U - Knock sensor

Info

Publication number: JPS6072533U
Application number: JP16564383U
Authority: JP
Inventors: 浅野　勝吾; 寿平高橋
Original assignee: 松下電器産業株式会社
Priority date: 1983-10-26
Filing date: 1983-10-26
Publication date: 1985-05-22

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図は従来のノックセンサの断面図、第２図は同ノッ
クセンサの周波数特性図〈第３図は本考案の一実施例に
おけるノックセンサの断面図、第４図は同ノックセンサ
の抵抗部材の下面図である。１５・・・筐体、１６・・・ネジ部、１７・・・基板、
１８・・・凸部、１９・・・突起、２０・・・孔、２１
・・・振動板、２２・・・圧電セラミック、２３・・・
コネクタユニット、２４・・・円筒部、２５・・・基板
部、２６・・・凹部、２７・・・抵抗部材、２８・・・
凹部、２９・・・セラミック　′基板、３０・・・抵抗
体、３１．３２・・・電極、３３・・・ターミナル、３
４・・・リード部、３５・・・絶縁材、３６・・・金属
箔、３７・・・金属箔、３８・・・０１Ｊング、３９・
・・規制板、４０・・・導電性接着剤。Fig. 1 is a sectional view of a conventional knock sensor, Fig. 2 is a frequency characteristic diagram of the same knock sensor, Fig. 3 is a sectional view of a knock sensor according to an embodiment of the present invention, and Fig. 4 is a resistance diagram of the same knock sensor. It is a bottom view of a member. 15... Housing, 16... Screw part, 17... Board,
18... Convex portion, 19... Protrusion, 20... Hole, 21
...Vibration plate, 22...Piezoelectric ceramic, 23...
Connector unit, 24... Cylindrical part, 25... Board part, 26... Recessed part, 27... Resistance member, 28...
Recessed portion, 29...Ceramic 'substrate, 30...Resistor, 31.32...Electrode, 33...Terminal, 3
4... Lead portion, 35... Insulating material, 36... Metal foil, 37... Metal foil, 38... 01J ring, 39...
...Regulation plate, 40... Conductive adhesive.

Claims

[Scope of utility model registration request]

A protrusion integrally formed in the center of a conductive substrate, a diaphragm fixed to the protrusion, a piezoelectric ceramic bonded to the diaphragm, and a connector unit with a terminal lead protruding from one end surface. a resistance member formed by baking a resistor onto a ceramic substrate having a hole through which the lead portion of the terminal passes; the resistance member is disposed between the substrate and the connector unit, and the resistance member, the substrate, A lead portion of the terminal passing through a hole in the diaphragm and the piezoelectric ceramic is connected to one electrode of the resistance member and one electrode of the piezoelectric ceramic, and the other electrode of the resistance member is connected to the substrate. A knock sensor.