High voltage feedthrough apparatus
Some embodiments include an apparatus, comprising: a partition; a feedthrough penetrating the partition and hermetically sealed to the partition, the feedthrough having a major axis; a first wall extending from the partition in a first direction along the major axis; and a second wall extending from the partition in a second direction opposite to the first direction along the major axis, the second wall forming a connector interface with the feedthrough; wherein a ratio of a length of the first wall to a thickness of the first wall is greater than or equal to 3:1.
1 . An apparatus, comprising:
a partition;
a feedthrough penetrating the partition and hermetically sealed to the partition, the feedthrough having a first longitudinal axis;
a first wall extending from the partition in a first direction parallel to the first longitudinal axis;
a second wall extending from the partition in a second direction opposite to the first direction and parallel to the first longitudinal axis, the second wall forming a connector interface with the feedthrough; and
a vacuum enclosure;
wherein:
a ratio of a length of the first wall to a thickness of the first wall is greater than or equal to 3:1;
the partition and the first wall are formed from a single, continuous material; and
the first wall is configured to thermally isolate a hermetic seal between the partition and the feedthrough from a weld between the first wall and the vacuum enclosure.
2 . The apparatus of claim 1 , wherein: a thickness of the second wall is greater than the thickness of the first wall.
3 . The apparatus of claim 1 , further comprising: a protrusion disposed within the first wall and coupled to the first wall and the partition.
4 . The apparatus of claim 3 , wherein: a thickness of the protrusion is at least twice a thickness of the first wall.
5 . The apparatus of claim 1 , wherein:
the vacuum enclosure has an opening; and
the first wall is disposed in the opening.
6 . The apparatus of claim 5 , wherein: the first wall is welded to the vacuum enclosure at a distal end of the first wall.
7 . The apparatus of claim 5 , wherein: the first wall includes a first keyed structure; the opening includes a second keyed structure; and the first keyed structure and the second keyed structure are complementary such that the first wall may be inserted into the opening in only one orientation.
8 . The apparatus of claim 7 , wherein: the second wall includes a third keyed structure.
9 . The apparatus of claim 1 , wherein: a thickness of the first wall is about 1 millimeter (mm) to about 3 mm.
10 . The apparatus of claim 1 , wherein: the feedthrough is one of a plurality of feedthroughs penetrating the partition and hermetically sealed to the partition.
11 . An apparatus, comprising:
a partition;
a feedthrough penetrating the partition and hermetically sealed to the partition, the feedthrough having a first longitudinal axis;
a first wall extending from the partition in a first direction parallel to the first longitudinal axis; and
a second wall extending from the partition in a second direction opposite to the first direction and parallel to the first longitudinal axis;
wherein:
a ratio of a length of the first wall to a thickness of the first wall is greater than or equal to 3:1; and
a periphery of the first wall defines a first keyed structure.
12 . The apparatus of claim 11 , wherein: the second wall forms a connector interface with the feedthrough.
13 . The apparatus of claim 11 , further comprising: a protrusion disposed within the first wall and coupled to the first wall and the partition.
14 . The apparatus of claim 11 , wherein: a thickness of the second wall is at least two times the thickness of the first wall.
15 . The apparatus of claim 11 , further comprising: a vacuum enclosure having an opening; wherein the first wall is welded to the vacuum enclosure at the opening.
16 . The apparatus of claim 15 , wherein: the opening includes a second keyed structure; and the first keyed structure and the second keyed structure are complementary such that the first wall may be inserted into the opening in only one orientation.
17 . The apparatus of claim 16 , wherein: the second wall includes a third keyed structure.
18 . The apparatus of claim 11 , wherein: the thickness of the first wall is about 1 millimeter (mm) to about 3 mm.
19 . An apparatus, comprising:
a partition for supporting an electrical connection;
a feedthrough for hermetically passing the electrical connection through the partition;
a vacuum enclosure; and
a first wall extending from the partition in a direction perpendicular to a longitudinal axis of the partition and hermetically connecting the partition to the vacuum enclosure at a weld, wherein:
a ratio of a length of the first wall to a thickness of the first wall is greater than or equal to 3:1;
the feedthrough is brazed to the partition;
the first wall is welded to the vacuum enclosure; and
the first wall is configured to thermally isolate the partition from the weld between the first wall and the vacuum enclosure.
20 . The apparatus of claim 19 , further comprising: a protrusion for reinforcing a connection between the partition and the first wall.