Physical quantity detection device
US12188799B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 2020 |
| Grant date | Jan 7, 2025 |
| Priority date | — |
| Expiry date | Sep 27, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F15/14
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Provided is a physical quantity detection device that can improve physical quantity measurement accuracy over a conventional device. A physical quantity detection device 20 includes a detector including a flow rate detection unit 205, a circuit board 207, a housing 201, and a cover 202. The detector detects a physical quantity and is mounted on the circuit board 207. The housing 201 houses the circuit board 207. The cover 202 is fixed to the housing 201 and defines an auxiliary passage 234 in which the flow rate detection unit 205 is disposed. The housing 201 and the cover 202 include a positioning portion P that includes a pin P1 extending in a thickness direction Dt of the circuit board 207 and a fitting portion P2 into which an end portion P11 of the pin P1 is fitted for positioning between the housing 201 and the cover 202. The pin P1 includes an engagement portion P12 that faces an engagement surface 207f of the circuit board 207 along the thickness direction Dt and restricts movement of the circuit board 207 in a surface direction Df along the front and rear surfaces thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.