Pressure sensor
First Claim
1. A pressure sensor comprising:
- a housing which has an opening portion for communicating an interior of the housing with an exterior thereof;
a pressure detecting unit which has a detection surface for detecting a pressure and is arranged in the housing; and
a seal member, wherein one of a perimeter of the detection surface of the pressure detecting unit and that of the opening portion of the housing has a protrusion portion which protrudes toward other of the perimeters;
the other of the perimeters has a groove, into which a tip of the protrusion portion is inserted; and
the seal member is arranged between the groove and the tip of the protrusion portion to seal therebetween.
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Accused Products
Abstract
A pressure sensor is provided with a housing which has an opening portion for communicating an interior of the housing with an exterior, and a pressure detecting unit which has a detection surface for detecting a pressure applied thereto through the opening and is arranged in the housing. One of a perimeter of the detection surface and that of the opening portion has a protrusion portion which protrudes toward other of the perimeters. The other of the perimeters has a groove, into which a tip of the protrusion portion is inserted. A seal member is arranged between the groove and the protrusion portion, to seal therebetween and buffer stress caused by relative displacement between the housing and the pressure detecting unit.
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Citations
11 Claims
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1. A pressure sensor comprising:
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a housing which has an opening portion for communicating an interior of the housing with an exterior thereof;
a pressure detecting unit which has a detection surface for detecting a pressure and is arranged in the housing; and
a seal member, wherein one of a perimeter of the detection surface of the pressure detecting unit and that of the opening portion of the housing has a protrusion portion which protrudes toward other of the perimeters;
the other of the perimeters has a groove, into which a tip of the protrusion portion is inserted; and
the seal member is arranged between the groove and the tip of the protrusion portion to seal therebetween. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification