Airflow meter
US7472592B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 7, 2007 |
| Grant date | Jan 6, 2009 |
| Priority date | — |
| Expiry date | Dec 7, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/684
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An airflow meter includes a detecting element for detecting airflow rate, a control integrated circuit electrically coupled with the detecting element, a circuit board having a first surface and a second surface opposing each other, and having the control integrated circuit on the first surface, a heat sink arranged on a side of the second surface, and a shield part arranged between the circuit board and the heat sink. The heat sink has an electrically conductive property and is provided for removing heat from the control integrated circuit. In addition, the heat sink is floated from a ground. The shield part has an electrically conductive property and is electrically grounded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.