JPH02129813U

JPH02129813U -

Info

Publication number: JPH02129813U
Application number: JP3867089U
Authority: JP
Priority date: 1989-03-31
Filing date: 1989-03-31
Publication date: 1990-10-25

Description

[Brief explanation of drawings]

図面は、この考案の実施例を示すものであつて
、第１図は一部破断側面図、第２図は波形図であ
る。図面において、２はケーシング、２ａは隔壁、
３はステータ、４はロータ、７ａ，７ｂはホール
素子、８ａ，８ｂは永久磁石片。 The drawings show an embodiment of this invention, in which FIG. 1 is a partially cutaway side view and FIG. 2 is a waveform diagram. In the drawings, 2 is a casing, 2a is a partition wall,
3 is a stator, 4 is a rotor, 7a and 7b are Hall elements, and 8a and 8b are permanent magnet pieces.

Claims

[Claims for Utility Model Registration] (1) A device for introducing rotation through a partition wall, on one side of the partition wall, a signal generating part that rotates in accordance with the introduced rotation, and directly facing the partition wall, and A sensor for detecting a signal from the signal generating section, the rotation axis of which is disposed perpendicular to the partition wall, and directly facing the signal generating section on the other side of the partition wall with the partition wall in between. A rotation position detection device in a rotation introduction device, wherein the partition wall is made of a material that transmits the signal. (2) The signal generating section is a magnetic field varying element attached to a rotor driven by the introduced rotation, the sensing section is a magnetic sensor, and the material that transmits the signal is a non-magnetic material. A rotational position detection device in a rotation introduction device according to claim 1. (3) The signal generating section is provided on a rotor driven by the introduced rotation, and changes the transmittance or reflectance of light with respect to light from a light source provided on the other one side of the partition wall. 2. The rotation position detection device in a rotation introduction device according to claim 1, wherein the sensing portion is a photoelectric conversion portion, and the material through which the signal is transmitted is a light-transmitting material.