Feedthrough device
View Patent ↗In a feedthrough device and method of assembly thereof, a body has longitudinally spaced first and second end faces and an inner surface defining a longitudinally extending opening. A conductor extends within the opening and an insulator extends within the opening transversely intermediate the conductor and the inner surface of the body to insulate the conductor from the body. The body has at least one indentation formed longitudinally into at least one of the first and second end faces, with a portion of the inner surface of the body being displaced transversely against the insulator in correspondence with the at least one longitudinal indentation to crimp the insulator and conductor within the opening of the body and maintain a hermetic seal across the feedthrough device.
1. A feedthrough device comprising:
a body having longitudinally spaced first and second end faces and an inner surface defining an opening extending longitudinally through the body;
a conductor extending within the opening of the body; and
an insulator extending within the opening of the body transversely intermediate the conductor and the inner surface of the body to insulate the conductor from the body;
wherein the body has:
a first annular indentation formed longitudinally into one longitudinal end face and a second annular indentation formed longitudinally into the other longitudinal end face;
a first annular bulge formed in the inner surface of the body and longitudinally corresponding to the first annular indentation, the first annular bulge extending transversely of the body opening such that the first annular bulge crimps the insulator and the conductor; and
a second annular bulge formed in the inner surface of the body and longitudinally corresponding to the second annular indentation, the second annular bulge extending transversely of the body opening such that the second annular bulge further crimps the insulator and the conductor.
2. The feedthrough device set forth in claim 1 wherein the device is for a battery cell having a housing including a wall, the body of the feedthrough device comprising at least part of the wall of the battery cell housing.
3. The feedthrough device set forth in claim 1 wherein the insulator at least one of electrically and thermally insulates the body from the conductor.