JPS6379519U - - Google Patents

Description

[Brief explanation of the drawing]

Figure 1 is a schematic configuration diagram of one embodiment of the present invention;
The figure shows a schematic configuration diagram of the outer box in Figure 1. Figure A is a front sectional view, Figure B is a plan view, Figure C is a sectional view taken along line A--A in Figure A, and Figure 3 is a cross-sectional view of the outer box. 1 is a schematic diagram of the rotating body of FIG. 1, in which FIG. 1A is a front view thereof, FIG. B is a plan view thereof, and FIG. C is a side view thereof. 1: Electronic rotation detection device, 2: Detection unit, 3: Conversion unit, 4: Outer box, 5: Rotating body, 6: Permanent magnet, 7
: Magnetoresistive element, 9, 10: Magnetic material.

Claims (1)

[Scope of utility model registration request] An electronic rotation detection device comprising: a detection section consisting of a permanent magnet attached to a rotating body and a magnetoresistive element that detects the rotation of the permanent magnet; and a conversion section that converts a signal detected by the magnetoresistive element into an electric signal. In the device, a magnetic shielding body having high magnetic permeability and high saturation magnetic flux density covers the outer periphery of the detecting section and the converting section to prevent the detecting section and the converting section from the influence of an external magnetic field, and a magnetic shielding body integrally formed with the magnetic shielding body. An electronic rotation detection device characterized by comprising an outer box made of.