Hermetically sealed electrical connection
AssigneeFisher Controls International LLC
InventorLei Zhang
Life of this patent
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Abstract
A feedthrough apparatus, such as for a passage through a barrier between a first compartment and a second compartment of a housing, can include a sleeve configured to sealingly couple with the passage, a printed circuit board (PCB) disposed through the sleeve and configured to provide electrical communication among the first compartment and the second compartment of the housing, and a seal disposed within the sleeve. The seal can be sealingly coupled to the PCB, and the sleeve, the PCB and the seal can be configured to hermetically seal the passage. The seal can include potting material and a V-groove connection.
Claims20
A feedthrough apparatus for a passage through a barrier between a first compartment and a second compartment of a housing, the feedthrough apparatus comprising:
- a sleeve having a first end, a second end longitudinally opposite the first end, and a bore extending there between, wherein the sleeve is configured to sealingly couple with the passage;
- a printed circuit board (PCB) disposed through the bore of the sleeve and configured to provide electrical communication among the first compartment and the second compartment of the housing;
- and
- a seal disposed within the bore of the sleeve, wherein the seal has a first end configured to be disposed in fluid communication with the first compartment and a second end configured to be disposed in fluid communication with the second compartment;
- wherein the seal is sealingly coupled to the PCB;
- wherein the feedthrough apparatus has a first sealing section wherein an exterior sealing surface of the seal is in sealing engagement with an interior sealing surface of the bore;
- wherein the bore comprises a first internal groove that opens towards the first end of the sleeve;
- wherein the seal comprises a tongue sealingly coupled to the first internal groove;
- and
- wherein the sleeve, the PCB and the seal are configured to hermetically seal the passage.
A digital valve controller, comprising:
- a housing having a first compartment, a second compartment, a barrier between the first and second compartments, and a passage through the barrier;
- and
- a feedthrough apparatus coupled to the passage, wherein the feedthrough apparatus comprises
- a sleeve having a first end, a second end longitudinally opposite the first end, and a bore extending there between;
- a printed circuit board (PCB) disposed through the bore of the sleeve and configured to provide electrical communication among the first compartment and the second compartment of the housing;
- a seal disposed within the bore of the sleeve, wherein the seal has a first end in fluid communication with the first compartment and a second end in fluid communication with the second compartment;
- and
- a first sealing section wherein an exterior sealing surface of the seal is in sealing engagement with an interior sealing surface of the bore;
- wherein the sleeve is sealingly coupled with the passage;
- wherein the seal is sealingly coupled with the PCB;
- wherein the bore comprises a first internal groove that opens towards the first end of the sleeve;
- wherein the seal comprises a tongue sealingly coupled to the first internal groove;
- and
- wherein the sleeve, the PCB and the seal hermetically seal the passage.
Dependencies are inferred from the claim text.