Electrically insulated connector bands for Downhole Electrical Disconnect Tools provide power and/or data communication downhole are made from metal having sufficient strength and corrosion resistance to eliminate the need of any vacuum and sealed pressure compensation assembly while being exposed to wellbore fluids. The electrical insulation is achieved by having portions of the connector bands coated with electrically insulating material. An uncoated section of each connector band will provide the electrical path between the male and female mandrels.

Electrically insulated connector bands for Downhole Electrical Disconnect Tools provide power and/or data communication downhole are made from metal having sufficient strength and corrosion resistance to eliminate the need of any vacuum and sealed pressure compensation assembly while being exposed to wellbore fluids. The electrical insulation is achieved by having portions of the connector bands coated with electrically insulating material. An uncoated section of each connector band will provide the electrical path between the male and female mandrels.

A connector (F) includes an inner housing (11). Terminal fittings (72) fixed to front end parts of wires (71) are inserted into the inner housing (11) from behind. An outer housing (37) is mounted relatively displaceably with respect to the inner housing (11) and is held out of contact with the terminal fittings (72). Two resilient positioning members (55) are configured to position the inner housing (11) and the outer housing (37) and spaced apart in a circumferential direction.

A connector (F) includes an inner housing (11). Terminal fittings (72) are fixed to front end parts of wires (71) and are inserted into the inner housing (11) from behind. An outer housing (37) is held out of contact with the terminal fittings (72) and is mounted relatively displaceably with respect to the inner housing (11). Vibration damping rings (64) are fit externally on the wires (71) in a state out of contact with the inner housing (11), and are held resiliently in contact with the outer housing (37).

A connector (F) includes an inner housing (11). Terminal fittings (72) are fixed to front end parts of wires (71) and are inserted into the inner housing (11) from behind. An outer housing (37) is held out of contact with the terminal fittings (72) and is mounted relatively displaceably with respect to the inner housing (11). Vibration damping rings (64) are fit externally on the wires (71) in a state out of contact with the inner housing (11), and are held resiliently in contact with the outer housing (37).

A connector (F) includes an inner housing (11) configured to accommodate terminal fittings (72). An outer housing (37) is separate from the inner housing (11) and is configured to surround the inner housing (11). A lock arm (17) is formed on an outer surface of the inner housing (11) and is configured to lock the inner housing (11) and a mating housing (80) in a connected state by being locked to the mating housing (80). Protecting portions (45, 46) are formed on the outer housing (37) and are arranged near a lock releasing portion (22) of the lock arm (17).

A connector (F) includes an inner housing (11) configured to accommodate terminal fittings (72). An outer housing (37) is separate from the inner housing (11) and is configured to surround the inner housing (11). A lock arm (17) is formed on an outer surface of the inner housing (11) and is configured to lock the inner housing (11) and a mating housing (80) in a connected state by being locked to the mating housing (80). Protecting portions (45, 46) are formed on the outer housing (37) and are arranged near a lock releasing portion (22) of the lock arm (17).

An electrically conductive contact element for an electrical connector comprises a contact surface having a plurality of caverns arranged under the contact surface in a microstructure and an auxiliary material filled in the plurality of caverns.

An electrically conductive contact element for an electrical connector comprises a contact surface having a plurality of caverns arranged under the contact surface in a microstructure and an auxiliary material filled in the plurality of caverns.

A connector (F) includes a housing (10), and terminal accommodating chambers (13) are formed in the housing (10). Terminal fittings (72) are fixed individually fixed to front end parts of the wires (71) and are inserted into the respective terminal accommodating chambers (13) from behind. Rubber plugs (61) are fit externally on the front end parts of the wires (71) and are configured to seal clearances between outer peripheries of the wires (71) and inner peripheries of the terminal accommodating chambers (13). Vibration damping rings (64) are formed on rear end parts of the rubber plugs (61). Vibration damping rings adjacent to each other are held resiliently held in contact with each other.