JPH0340564U

JPH0340564U -

Info

Publication number: JPH0340564U
Application number: JP10140789U
Authority: JP
Priority date: 1989-08-30
Filing date: 1989-08-30
Publication date: 1991-04-18

Description

[Brief explanation of drawings]

第１図ないし第４図は本考案の実施例を示し、
第１図はクランク角センサの縦断面図、第２図は
ケーシングの基端側に樹脂材料を充填した状態を
示す縦断面図、第３図は真空容器内にケーシング
等を収容した状態を示す縦断面図、第４図は樹脂
材料を大気圧によりケーシング内に流込む状態を
示す縦断面図、第５図は従来技術によるクランク
角センサを示す縦断面図である。４……ケーシング、５……コイルボビン、６…
…永久磁石、７……コア部材（第１の鉄心部材）
、８……磁性部材（第２の鉄心部材）、９……検
出コイル、１０……キヤツプ、１１……Ｏリング
（シール部材）、１３……隙間、２１……蓋部材
（閉塞材）、２１Ａ……充填部、２２……熱硬化
性樹脂材料、２３……真空容器。 1 to 4 show embodiments of the present invention,
Fig. 1 is a longitudinal cross-sectional view of the crank angle sensor, Fig. 2 is a longitudinal cross-sectional view showing a state in which the base end side of the casing is filled with resin material, and Fig. 3 is a longitudinal cross-sectional view showing a state in which the casing etc. are housed in a vacuum container. FIG. 4 is a longitudinal sectional view showing a state in which a resin material is poured into a casing under atmospheric pressure, and FIG. 5 is a longitudinal sectional view showing a conventional crank angle sensor. 4...Casing, 5...Coil bobbin, 6...
...Permanent magnet, 7... Core member (first iron core member)
, 8...Magnetic member (second core member), 9...Detection coil, 10...Cap, 11...O ring (sealing member), 13...Gap, 21...Lid member (occlusion material), 21A... Filling part, 22... Thermosetting resin material, 23... Vacuum container.

Claims

[Scope of utility model registration request]

A casing is formed of an insulating resin material into a stepped cylindrical shape and has a coil bobbin portion at its tip end, and a permanent magnet is inserted into the casing from the proximal end of the casing, and the permanent magnet is inserted into the casing. The first and second iron core members sandwiched together, a detection coil wound around a coil bobbin portion of the casing, and a non-magnetic metal material formed into a closed cylinder shape, and the casing so as to cover the periphery of the detection coil. A cap is attached to the outer circumferential side of the cap via a sealing member, and the cap is made of a thermosetting resin material.
In an electromagnetic rotation sensor comprising a closing member that closes the proximal end side of the casing with first and second iron core members and a permanent magnet inserted into the casing, the closing member is inserted from the proximal end side of the casing. An electromagnetic rotation sensor characterized in that it is formed by thermosetting a portion of a thermosetting resin material in a state in which the resin material is poured between the iron core member, the permanent magnet, and the casing.