Electronic connector and method of attachment
View Patent ↗An electrical connector capable of being sealingly connected to a housing structure by using a friction stir welding technique includes a polymeric electrical connector harness, at least one electrical conductor extending through the electrical connector harness, and a welding strip sealingly connected around a perimeter of the electrical connector harness to facilitate welding of the electrical connector to a housing structure, such as a sealed metal housing, to sealingly close an opening defined in the housing structure. The electrical connector can be used in a process that creates a hermetic seal between the connector and the housing structure, eliminates the need for mechanical fasteners and/or adhesives, and/or reduces capital equipment and energy costs.
1. An electrical connector including a polymeric electrical connector harness, at least one electrical conductor extending through and sealingly engaged with the electrical connector harness, and a welding strip sealingly connected around a perimeter of the electrical connector harness to facilitate welding of the electrical connector to a housing structure and sealingly closing an opening defined in the housing structure, wherein the welding strip is a stamped metal piece having a central section embedded in the polymeric connector harness, the embedded central section having at least one aperture to allow each electrical conductor to pass through without contacting the central section, the central section being sufficiently coextensive with the area of the polymeric electrical connector harness to provide effective electromagnetic impulse shielding.
2. An assembly comprising:
a housing structure defining an opening sealingly closed with an electrical connector;
at least one electronic device deposed within the housing structure;
the electrical connector including a polymeric connector harness, at least one electrical conductor extending through and sealingly engaged with the polymeric connector harness, and a welding strip sealingly connected to and extending around a perimeter of the polymeric connector harness; and
a weld joint between the housing structure and the welding strip, the weld joint extending around the electrical connector to seal the electrical connector in the opening, wherein the welding strip is a stamped metal piece having a central section embedded in the polymeric connector harness, the embedded central section having at least one aperture to allow each electrical conductor to pass through without contacting the central section, the central section being sufficiently coextensive with the area of the polymeric electrical connector harness to provide effective electromagnetic impulse shielding.
3. A process for sealingly attaching an electrical connector to a housing structure comprising:
providing an electrical connector including a polymeric electrical connector harness, at least one electrical conductor extending through the electrical connector harness, and a welding strip sealingly connected around a perimeter of the electrical connector harness to facilitate welding of the electrical connector to a housing structure and sealingly closing an opening defined in the housing structure;
providing a housing structure defining an opening;
positioning the electrical connector at the opening defined in the housing structure so that a surface of the welding strip engages a surface of the housing structure to define a perimeter seam adjacently circumscribing the opening defined in the housing structure; and
welding the welding strip to the housing structure along the seam to sealingly attach the electrical connector to the housing structure and sealingly close the opening in the housing structure.
4. The process of claim 3 , wherein the housing structure is a housing containing an electronic component electrically connected to the at least one electrical conductor extending through the polymeric connector harness.
5. The process of claim 3 , wherein the welding strip and housing structure are welded together using friction stir welding.
6. The process of claim 3 , wherein the welding strip is composed of a metal or metal alloy.
7. The process of claim 3 , wherein the welding strip has a section embedded within the polymeric connector harness.
8. The process of claim 3 , wherein the electrical conductor extending through the polymeric connector harness is a metal pin.
9. The process of claim 3 , wherein the welding strip has an upwardly bent inner peripheral lip embedded in the polymeric connector harness.
10. The process of claim 3 , wherein the welding strip is a stamped metal piece having a central section embedded in the polymeric connector harness, the embedded central section having at least one aperture to allow each electrical conductor to pass through without contacting the central section, the central section being sufficiently coextensive with the area of the polymeric electrical connector harness to provide effective electromagnetic impulse shielding.