Method and structure for waterproofing a terminal splice
AssigneeSumitomo Wiring Systems, Ltd.
InventorHiroyuki Ootsuki
Life of this patent
Estimating the term…
Abstract
To decrease cap diameter covering a terminal splice and improve workability and waterproof performance, a stopper is inserted in one opening of a heat shrinkable tube. The heat shrinkable tube is heat-shrunk in this state, then a cap having end an closure is formed. A fluid thermosetting waterproofing agent is injected into the cap from a second opening. A thermal splice, which is formed from welded strands stripped from a plurality of wire terminals, is inserted and immersed in the thermosetting waterproofing agent. Then, the entire cap is heated and heat-shrunk at a predetermined temperature and the thermosetting waterproofing agent is heat-hardened.
Claims20
A method of waterproofing a terminal splice comprising:
- providing a heat shrinkable tube, said heat shrinkable tube having a first opening and a second opening;
- inserting a stopper in said first opening of said heat shrinkable tube;
- heat-shrinking said heat shrinkable tube having said stopper inserted therein, forming a cap having an end closure;
- injecting a fluid waterproofing agent into said cap through said second opening;
- inserting a terminal splice through said second opening of said cap and immersing said terminal splice in said waterproofing agent;
- and
- heating said cap at a predetermined temperature to heat-shrink said heat shrinkable tube and to accelerate hardening of said waterproofing agent.
A waterproof terminal splice comprising:
- a heat-shrunk tube having a first opening and a second opening;
- a cap having an end closure provided on said heat-shrunk tube, said cap comprising a stopper inserted in said first opening of said heat-shrunk tube;
- a waterproofing agent provided in an interior space of said heat-shrunk tube;
- and
- a terminal splice provided in said interior space of said heat-shrunk tube, said terminal splice immersed in said waterproofing agent.
Dependencies are inferred from the claim text.