Physical quantity detection device
US11346695B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 23, 2020 |
| Grant date | May 31, 2022 |
| Priority date | — |
| Expiry date | Jan 23, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F15/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Provided is a physical quantity detection device capable of achieving both rigidity improvement and sealability improvement. A physical quantity detection device (20) of the invention includes a housing (100), a cover (200), a chip package (310), and a flow rate sensor (311) supported by the chip package and arranged in a sub-passage. The housing includes: a first adhesive groove 160A which is an adhesive groove to which an adhesive for bonding the cover is applied, extends along a proximal end of the housing, extends in the protruding direction of the housing from the proximal end of the housing to a position on a more distal end side of the housing than the chip package, and is applied with the first adhesive 401; and a second adhesive groove 160B which extends along the sub-passage 134 and is applied with the second adhesive 402. The first adhesive has a higher Young's modulus, and the second adhesive has a higher thixotropy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.