Low cost versatile pressure transducer

A pressure transducer comprising:

• a disk-like sensor module defining a pressure responsive face, and providing an output signal indicative of a pressure level of pressurized fluid acting on said pressure responsive face;
• a housing enclosing said sensor module and including a cup-shaped electrically conductive high pressure fitting member, said high pressure fitting member integrally including an end wall and a side wall cooperatively defining a cavity receiving said sensor module, said sensor module at a peripheral edge of said pressure responsive face sealingly cooperating with said high pressure fitting member at said end wall thereof to define a high pressure first chamber in said cavity, said first chamber being bounded by said pressure responsive face and said end wall, and said fitting member defining a port opening to said first chamber;
• said side wall including a radially inwardly extending marginal edge lip portion defining an opening to said cavity and urging said sensor module into sealing cooperation at said peripheral edge thereof with said end wall of said fitting member;
• further including a connector member axially aligning with and juxtaposed with said high pressure fitting member, said connector member including plural electrical connection pins, and means for connecting said sensor module with said connection pins to connect said output signal eternally of said transducer;
• said housing further including a tubular member receiving therein both said high pressure fitting member and said connector member in adjacent axial alignment;
• and
• wherein said tubular member defines a pair of radially inwardly extending lips at respective opposite ends thereof, each of said pair of lips of said tubular member engaging a respective one of said high pressure fitting member and said connector member to urge these member axially together.

A pressure sensor comprising:

• a cup-shaped fitting member integrally including an end wall and a side wall cooperatively defining a cavity therein and an opening to said cavity, a chamber in said cavity, and a port communicating said chamber with a source of pressurized fluid;
• a sensor module disposed in said cavity and sealingly cooperating with said end wall to bound said chamber in said cavity, said sensor module including a disk-like substrate carrying a disk-like diaphragm member and sealingly cooperating therewith to bound a disk-like second chamber, and said sensor module providing an output signal indicative of a fluid pressure level effective on said diaphragm member;
• a spacer member disposed in said cavity in engagement with said substrate member of said sensor module to urge the latter into sealing engagement with said end wall;
• said side wall including a marginal edge lip portion extending radially inwardly to define said opening to said cavity and cooperating with said spacer member to urge the latter into engagement with said sensor module;
• a connector member axially aligning with said cavity and supportingly engaging said lip portion of said side wall, said connector member including electrical connectors for communicating said output signal externally of said pressure sensor, and conductor means conducting said output signal from said sensor module to said connectors;
• and
• a tubular member receiving both said fitting member and said connector therein in axial juxtaposition, said tubular member including at opposite ends thereof respective radially inwardly extending lip portions sandwiching said connector member and said fitting member therebetween and urging them toward one another.

A pressure transducer including a disk-like fluid pressure responsive sensor module having an axially disposed pressure responsive face and providing an output electrical signal in response to fluid pressure effective thereon, and a chambered housing receiving said sensor module and communicating fluid pressure thereto, said housing including a cup-shaped high pressure fitting including an integral end wall and a side wall cooperatively defining a cavity and an axial opening thereto, said sensor module being received axially into said cavity and sealingly cooperating at said pressure responsive face with said end wall to bound a chamber for receiving said pressurized fluid, said housing defining a pressure inlet port for communicating said pressurized fluid into said chamber, said side wall at said opening defining a radially inwardly extending lip cooperating with said sensor module to urge the latter into sealing engagement with said end wall, a connector member axially disposed at said cavity opening both for connecting said output signal externally of said transducer and for engaging said lip portion, and a tubular member receiving both said fitting member and said connector member and at each end thereof including a respective radially inwardly extending lip engaging a respective one of said fitting member and said connector member both to secure these members together and to provide a duality of axial support urging said sensor module into sealing engagement with said end wall by forcefully engaging of said connector member with said lip portion of said fitting member.