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Packaging and sealing for pressure transducer

  • US 5,060,108 A
  • Filed: 01/25/1990
  • Issued: 10/22/1991
  • Est. Priority Date: 01/25/1990
  • Status: Expired due to Term
First Claim
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1. A pressure transducer having an improved seal comprising a metallic cup shaped housing with a bottom wall and an integrally attached generally cylindrical side wall extending therefrom to a free distal end portion defining a chamber therein, the chamber having a first pressure sensing module receiving portion and a second electronics receiving portion, a pressure fluid inlet formed in the bottom wall, a pressure sensing module disposed in the first portion of the chamber in communication with the pressure fluid inlet, seal means disposed intermediate the pressure sensing module and the bottom wall circumscribing the fluid inlet, a groove formed in the internal surface of the cylindrical side wall, a retainer ring disposed in the groove placing a force on the pressure sensing module against the seal means, electronics board mounting means formed in the second portion of the chamber, an electronics board mounted on the mounting means, a metallic header received on the free distal end portion of the cylindrical wall and welded thereto, the header having terminal receiving apertures extending therethrough, a terminal extending through each aperture and electrically separated from the header by glass material, the terminals electrically coupled to the electronics board and electrical coupling means connecting the electronics board to the pressure sensing module.

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