Electrical connector with a transparent insulating jacket

An electrical adapter comprising:

• first and second connector units, each of which includes a terminal holding member and a terminal set mounted on said terminal holding member, said terminal holding member having a first end face and a second end face opposite to said first end face, said terminal set having a mating portion and a coupling portion that projects relative to said second end face of said terminal holding member;
• an electrical coupling unit having a first end portion coupled electrically to said coupling portion of said terminal set of said first connector unit, and a second end portion coupled electrically to said coupling portion of said terminal set of said second connector unit;
• a tubular unitary metal protective sleeve having a sleeve wall with a first wall portion that defines a first receiving space for receiving said terminal holding member of said first connector unit therein, and a second wall portion that defines a second receiving space for receiving said terminal holding member of said second connector unit therein;
• a transparent insulating jacket for enclosing fittingly said metal protective sleeve;
• and
• an interlocking unit including a hole set formed in one of said sleeve wall and said transparent insulating jacket and a plug set formed on the other of said sleeve wall and said transparent insulating jacket to interconnect securely said metal protective sleeve and said transparent insulating jacket.

An electrical cable comprising:

• a connector unit including a terminal holding member and a terminal set mounted on said terminal holding member, said terminal holding member having a first end face and a second end face opposite to said first end face, said terminal set having a mating portion and a coupling portion that projects relative to said second end face of said terminal holding member;
• a signal cable having a first cable portion coupled electrically to said coupling portion of said terminal set, and a second cable portion opposite to said first cable portion;
• a tubular unitary metal protective sleeve having a sleeve wall with a first wall portion that defines a receiving space for receiving said terminal holding member therein, and a second wall portion that defines an opening to permit said second cable portion of said signal cable to extend out of said metal protective sleeve;
• a transparent insulating jacket for enclosing fittingly said metal protective sleeve;
• and
• an interlocking unit including a hole set formed in one of said sleeve wall and said transparent insulating jacket and a plug set formed on the other of said sleeve wall and said transparent insulating jacket to interconnect securely said metal protective sleeve and said transparent insulating jacket.

A connector housing comprising:

• a tubular unitary metal protective sleeve;
• a transparent insulating jacket for enclosing fittingly said metal protective sleeve;
• and
• an interlocking unit including a hole set formed in one of said metal protective sleeve and said transparent insulating jacket, and a plug set formed on the other of said metal protective sleeve and said transparent insulating jacket to interconnect securely said metal protective sleeve and said transparent insulating jacket.