JPH0399359U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の第１実施例の電磁ピツクアツ
プ式回転速度センサの断面図、第２図はこのセン
サにおける磁束の状態を示す模式図、第３図はこ
のセンサを自動車のアンチロツクブレーキングシ
ステムに使用した場合の構成及び出力の様子の説
明図、第４図は第２実施例の電磁ピツクアツプ式
回転速度センサの断面図、第５図Ａは第３実施例
の電磁ピツクアツプ式回転速度センサの断面図、
第５図Ｂはその底面図、第６図は従来例の電磁ピ
ツクアツプ式回転速度センサの断面図、第７図は
この従来例による磁束の状態を示す模式図である
。 １，１０１，２０１……電磁ピツクアツプ式回
転速度センサ、３……ボビン、５……コイル、７
……中心孔、７ａ……大径部、９，２０９……ヨ
ーク、９ａ，２０９ａ……検出端、１１……ハウ
ジング、１３……永久磁石、１５……ワイヤハー
ネス、１７……ターミナル、１９……円形開口、
２１……嵌合リング片、２１０……検出歯。 Fig. 1 is a sectional view of an electromagnetic pick-up rotational speed sensor according to the first embodiment of the present invention, Fig. 2 is a schematic diagram showing the state of magnetic flux in this sensor, and Fig. 3 is a cross-sectional view of an electromagnetic pickup type rotational speed sensor according to a first embodiment of the present invention. An explanatory diagram of the configuration and output when used in a system, Fig. 4 is a sectional view of the electromagnetic pick-up type rotation speed sensor of the second embodiment, and Fig. 5A is an electromagnetic pick-up type rotation speed sensor of the third embodiment. A cross-sectional view of
FIG. 5B is a bottom view thereof, FIG. 6 is a cross-sectional view of a conventional electromagnetic pickup type rotational speed sensor, and FIG. 7 is a schematic diagram showing the state of magnetic flux according to this conventional example. 1,101,201...Electromagnetic pick-up type rotational speed sensor, 3...Bobbin, 5...Coil, 7
... Center hole, 7a ... Large diameter part, 9,209 ... Yoke, 9a, 209a ... Sensing end, 11 ... Housing, 13 ... Permanent magnet, 15 ... Wire harness, 17 ... Terminal, 19 ...circular opening,
21... Fitting ring piece, 210... Detection tooth.

Claims (1)

【実用新案登録請求の範囲】 導線を捲回して形成したコイルと、 該コイルの中心部に挿通配設されるヨークと、 前記コイル及びヨークを内部に収納すると共に
、該ヨークの検出端を露出させる開口部を有する
ハウジングと、 前記ヨークの他端に配設される永久磁石と を備え、前記ヨークの検出端を被検出体に対向配
置し、該被検出体の回転に伴い前記コイルに電圧
変化を発生させる電磁ピツクアツプ式回転速度セ
ンサにおいて、 前記ハウジングの開口部おいて該ハウジングの
内部に向かつて形成され、前記ヨークの検出端測
の外周部に嵌合し、該ヨークの検出端を前記ハウ
ジングに固定する嵌合固定部を備えることを特徴
とする電磁ピツクアツプ式回転速度センサ。[Claims for Utility Model Registration] A coil formed by winding a conducting wire, a yoke inserted through the center of the coil, the coil and yoke being housed inside, and a detection end of the yoke exposed. and a permanent magnet disposed at the other end of the yoke, the detection end of the yoke is arranged to face the object to be detected, and voltage is applied to the coil as the object to be detected rotates. In an electromagnetic pick-up rotational speed sensor that generates a change, an opening of the housing is formed facing the inside of the housing, and is fitted to an outer circumference of a detection end of the yoke, so that the detection end of the yoke is connected to the detection end of the yoke. An electromagnetic pick-up type rotational speed sensor characterized by having a fitting fixing part fixed to a housing.