Dielectric part and an electrical connector assembly incorporating the same

A dielectric part, comprising:

• a box-shaped dielectric part body fabricated from a compressible dielectric material and having a first dielectric part body surface and an opposite second dielectric part body second surface extending parallel to the first dielectric part body surface, the dielectric part body having a plurality of dielectric part body holes extending through and between the first dielectric part body surface and the second dielectric part body surface and a plurality of projections connected to and projecting from at least one of the first and second dielectric part body surfaces, respective ones of the plurality of projections surrounding respective ones of the dielectric part body holes,
• wherein each one of the plurality of projections is ring-shaped defining a ring-shaped projection hole,
• wherein each one of the dielectric part body holes has a dielectric part body hole diameter and each one of the ring-shaped projection holes has an inner ring-shaped projection hole diameter equal to the dielectric part body hole diameter
• and wherein, upon applying a compression force to the dielectric part body, at least the plurality of projections are compressed.

An electrical assembly, comprising:

• a matable connector piece;
• an electrical connector housing with a plurality of terminal pins secured therein with terminal pin portions extending from the electrical connector housing;
• and
• a dielectric part having a box-shaped dielectric part body fabricated from a compressible dielectric material and a plurality of dielectric part body holes sized and arranged to slidably receive respective ones of the terminal pin portions in a close-fitting relationship such that when the electrical connector housing and the matable connector piece are releasably connected together, the dielectric part body is disposed and compressed between at least a portion of the electrical connector housing and the matable connector piece and respective ones of the terminal pin portions are slidably received in respective ones of the plurality of dielectric part body holes are fully enveloped by the dielectric part body between the electrical connector housing and the matable connector piece to isolate and thus electrically insulate the terminal pin portions from one another and end sections of the terminal pin portions extend through and project from the matable connector piece,
• wherein, the dielectric part moves to and between a normally relaxed state and a compressed state with the dielectric part being resiliently biased towards the normally relaxed state and, when the electrical connector housing and the matable connector piece are connected together, the dielectric part moves from the normally relaxed state to the compressed state,
• wherein the dielectric part body has a first dielectric part body surface and an opposite second dielectric part body second surface extending parallel to the first dielectric part body surface, the dielectric part body holes extending through and between the first dielectric part body surface and the second dielectric part body surface,
• wherein the dielectric part body includes a plurality of projections connected to and projecting from at least one of the first and second dielectric part body surfaces as an integral construction, respective ones of the plurality of ring-shaped projections surrounding respective ones of the dielectric part body holes with each one of the plurality of ring-shaped projections defining a ring-shaped projection hole and
• wherein at least the plurality of projections are compressed when the electrical connector housing and the matable connector piece are releasably connected together.