JPS6136505U

JPS6136505U - throttle sensor

Info

Publication number: JPS6136505U
Application number: JP12140284U
Authority: JP
Inventors: 克正宮崎
Original assignee: 国産電機株式会社
Priority date: 1984-08-09
Filing date: 1984-08-09
Publication date: 1986-03-06

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図は本一案の一実施例を示した断面図、第２図は第
１図の実施例で磁気検出素子から得られる信号を示した
線図、第３図は、同実施例で用いる磁気検出素子取付け
プレートの構成例を示した縦断面図、第４図は同取付け
プレートの正面図、第５図は本考案の他の実施例を示し
た要部断面図、第６図及び第７図はそれぞれ本考案で用
いる磁気検出素子取付けプレートの異なる変形例を示し
た正面図、第８図は本考案で用いる磁気検出素子取付け
プレートの他の変形例を示した縦断面図、第９図は本考
案で用いる取付けプレートの更に他の変形例を示した正
面図、第１０図は第９図のＸ−Ｘ線断面図である。１・・・気化器ハウジング、２・・・バルブガイド部、
３・・・弁孔、４・・・空気流入口、５・・・混合気流
出口、訃・・スロットルバルブ、９・・・二一ドル、１
１・・・スロットルワイヤ、１２・・・バネ、２２ａ〜
２２ｃ，２２・・・磁気検出素子、２３・・・永久磁石
、３０・・・バルブ開度検出信号発生回路、４０・・・
磁極片、３１，３４．３５・・・ナンド回路、３２．３
３・・・インバータ。Fig. 1 is a sectional view showing an embodiment of the present proposal, Fig. 2 is a diagram showing a signal obtained from the magnetic detection element in the embodiment of Fig. 1, and Fig. 3 is a diagram showing the signal obtained from the magnetic detection element in the embodiment of Fig. 1. FIG. 4 is a front view of the mounting plate, FIG. 5 is a sectional view of main parts showing another embodiment of the present invention, and FIGS. 7 is a front view showing different modifications of the magnetic detection element mounting plate used in the present invention, FIG. 8 is a longitudinal sectional view showing another modification of the magnetic detection element mounting plate used in the present invention, and FIG. FIG. 9 is a front view showing still another modification of the mounting plate used in the present invention, and FIG. 10 is a sectional view taken along the line X--X in FIG. 9. 1... Carburetor housing, 2... Valve guide part,
3...Valve hole, 4...Air inlet, 5...Mixture mixture outlet, Throttle valve, 9...21 dollars, 1
1... Throttle wire, 12... Spring, 22a~
22c, 22... Magnetic detection element, 23... Permanent magnet, 30... Valve opening detection signal generation circuit, 40...
Magnetic pole piece, 31, 34.35...Nand circuit, 32.3
3...Inverter.

Claims

[Scope of utility model registration request]

(1) In a throttle sensor for detecting the opening degree of the throttle valve of a carburetor for an internal combustion engine, which has a throttle valve provided in the carburetor housing, a permanent magnet fixed to the side surface of the throttle valve is used to a mounting hole provided through a wall portion of the carburetor housing facing the side surface of the throttle valve; and a magnetic detection element mounting plate fixed to the carburetor housing with a portion fitted into the mounting hole. a magnetic sensing element that is fitted and fixed in a positioning recess provided on the surface of the magnetic sensing element mounting plate facing the throttle valve to detect the magnetic field generated from the permanent magnet; 1. A throttle sensor comprising: a valve opening detection signal generation circuit that receives as input a signal output when a strong magnetic field is detected and outputs a valve opening detection signal. {2} The throttle sensor according to claim 1, wherein the parts constituting the valve opening detection signal generation circuit are attached to the outer surface of the magnetic detection element mounting blade.