US 11,677,171 B2
System and method for sealing electrical terminals
Sunny Sethi, Castro Valley, CA (US); and Vijay Daga, Sunnyvale, CA (US)
Assigned to TE Connectivity Solutions GmbH, Schaffhausen (CH)
Filed by TE Connectivity Services GmbH, Schaffhausen (CH)
Filed on Apr. 8, 2020, as Appl. No. 16/842,934.
Prior Publication US 2021/0320440 A1, Oct. 14, 2021
Int. Cl. H01R 4/72 (2006.01); B29C 65/48 (2006.01); H01R 43/00 (2006.01); H02G 15/04 (2006.01)
CPC H01R 4/72 (2013.01) [B29C 65/4815 (2013.01); H01R 43/00 (2013.01); H02G 15/04 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A sealing device for sealing an electrical terminal, comprising:
a heat shrinkable tubing having an inner wall;
a first sealant/adhesive configured to cooperate with the heat shrinkable tubing, the first sealant/adhesive having a first sealant/adhesive first surface and an oppositely facing first sealant/adhesive second surface, the second surface of the first sealant/adhesive being ultra-sonically bonded to the inner wall of the heat shrinkable tubing prior to placement of the sealing device over the electrical terminal, the first sealant/adhesive has a first viscosity;
a second sealant/adhesive configured to cooperate with free ends of electrical conductors which are in electrical engagement with the electrical terminal, the second sealant/adhesive having a second sealant/adhesive first surface and an oppositely facing second sealant/adhesive second surface, the second sealant/adhesive first surface provided in engagement with the electrical conductors, the second sealant/adhesive second surface provided in engagement and bonded with the first sealant/adhesive first surface, the second sealant/adhesive having a second viscosity which has a lower viscosity than the first sealant/adhesive;
the first sealant/adhesive having a melting point which is below the melting point of the second sealant/adhesive; and
a third sealant/adhesive provided proximate the first sealant/adhesive the third sealant/adhesive configured to cooperate with the electrical conductors, the third sealant/adhesive having a third sealant/adhesive first surface and an oppositely facing third sealant/adhesive second surface, the third sealant/adhesive first surface provided in engagement with the electrical conductors, the third sealant/adhesive having a third viscosity which is higher than the first viscosity of the first sealant/adhesive which, upon application of heat, allows the third sealant/adhesive to melt and conform to a surface of the electrical conductors without significantly flowing from a designated region of the electrical conductors.