Rotation angle detector having sensor cover integrating magnetic sensing element and outside connection terminal
US6819102B2 · kind B2 · utility
7Cited by
15References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2003 |
| Grant date | Nov 16, 2004 |
| Priority date | — |
| Expiry date | Dec 18, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D2205/40
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Non-contact type Hall ICs detecting an rotation angle of a throttle valve, a stator core strengthening a magnetic field around the Hall ICs, a lead frame connecting the Hall ICs to an outside ECU are integrated in a sensor cover by resin molding. Thus, the Hall ICs, the stator core, and the lead frame are accurately positioned in the sensor cover. As a result, the Hall ICs are accurately positioned with respect to a permanent magnet disposed in a shaft side of the throttle valve, thereby improving an accuracy of detecting the rotation angle of the throttle valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.