Method and structure for limiting cover deflection in an ECU with leakage testing feature
US10729027B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2018 |
| Grant date | Jul 28, 2020 |
| Priority date | — |
| Expiry date | Nov 8, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K7/1427
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An engine control unit (ECU) includes a housing; a cover sealingly engaged with the housing so as to define an interior space; a circuit board disposed in the interior space; and a fastener coupling together the circuit board, the housing and the cover, the fastener serving to limit an amount of deflection of the housing relative to the housing. The circuit board and the cover are constructed and arranged to define an airflow path from an outer surface of the cover to the interior space. The airflow path allows for a leak test to be performed on the ECU, wherein upon an affirmative determination that results of the leak test shows no leaks in the ECU, sealant seals the airflow path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.