To allow an electronic control unit to be replaced with good work efficiency and prevent foreign matter from entering a casing during maintenance work, the connector connection structure includes an internal connector positioned inside a casing, an external connector positioned outside the casing and an electronic control unit electrically connected between the external connector and the electronic control unit wherein the electronic control unit includes a main part that opposes an opening formed in the casing when the internal connector is connected thereto, and a first conductive connection portion and a second conductive connection portion provided on either end of the main part and configured to be connected to the internal connector and the external connector respectively, and a first seal member is provided on an outer periphery of the main part, the first seal member closing the opening when the external connector is not connected to the electronic control unit and the internal connector is connected to the electronic control unit.

A rotary electric machine includes a rotor rotatable around an axis, a stator provided to surround the rotor and having a first side on one side, a connecting board, a bracket, connection pins electrically connected to the connecting board, a direct connection connector, and a main circuit connector. Stator windings are electrically connected the connecting board which is provided on the one side. The bracket has an opening and is provided on the one side to be connected to the stator so as to cover the connecting board and the first side of the stator. The direct connection connector is inserted into the opening such that the connection pins are inserted into the direct connection connector to be electrically connected to the direct connection connector. The main circuit connector is inserted into the opening and to be electrically connected to the direct connection connector.

An enclosure and method for an electrical component having a base portion and a cover portion. The base portion has a first channel which extends about at least a portion of a periphery of the base portion. The cover portion has a second channel which extends about at least a portion of a periphery of the cover portion. The second channel is aligned with the first channel to form a sealant receiving channel. A sealant is provided in the sealant receiving channel. The cover portion has at least one inlet opening configured to receive the sealant as the sealant is injected into the sealant receiving channel. The cover portion has at least one outlet opening configured to allow excess sealant of the sealant to escape from the sealant receiving channel as the sealant is injected into the sealant receiving channel.

To prevent electric conductance impairment of an electric connecting part between an electronic control unit and an internal connector in a reliable manner even when the electric connecting part between the electronic control unit and the internal connector is placed in an environment where oil mist or electroconductive substances are present, the electronic control unit includes a main part, a first conductive connection portion provided at a lower end of the main part and configured to be electrically connected to the internal connector, and an outer shell member extending downward so as to surround the first conductive connection portion, and to be open only at a lower end thereof, and wherein the internal connector is provided with a housing including a part defining an annular recess opened upward on an outer periphery thereof, the lower end of the outer shell member being received in the annular recess when the electronic control unit is connected to the internal connector.

Some embodiments include an assembly, comprising: a first connector housing including an opening and a first electrical contact a second connector housing including a portion insertable into the opening and a second electrical contact electrically interfaceable with the first electrical contact a seal configured to form a sealable fluid chamber with the first connector housing and the second connector housing when the portion of the second connector housing is inserted into the opening of the first connector housing and a sealable vent coupled to the sealable fluid chamber when the portion of the second connector housing is inserted into the opening of the first connector housing wherein, when the sealable fluid chamber is formed: the portion of the second connector housing is movable within the opening; and the volume of the sealable fluid chamber changes as the portion of the second connector housing moves within the opening.

Components and systems include devices for implementing downhole splice connections within a wellbore. In some embodiments, a downhole splice connector includes at least one connector body having an inner diameter defining a cavity within which at least one connector receptacle is disposed, and at least one conductive center pin disposed within the at least one connector receptacle. The downhole splice connector further includes at least one pressure sleeve annularly disposed between an inner diameter of the connector body and an outer diameter of the center pin, such that a pressure barrier is formed between an outer diameter of the pressure sleeve and an inner diameter of the connector body and a pressure barrier is formed between an inner diameter of the pressure sleeve and an outer diameter of the center pin.

A thermoset sealant film includes an epoxy and a hardener. The hardener is integrated with the epoxy and remains physically distinct from the epoxy in a formed state of the thermoset sealant film.

An airtight connection assembly comprising conducting members constituting passages of a signal or fluid, a sealing part including a first sealing member with a shape which can cover a first hole formed in a partition of an airtight container and a sealing material, and a connecting part comprising a connector connected to either or both of ends of the conducting members, second holes formed in said first sealing member so as to communicate the inside and outside of the airtight container with each other, the conducting members are individually inserted through the second holes, and gaps between the conducting members and inner circumferential surfaces of the second holes are filled with a sealing material. Thereby, it is made possible to deliver and receive an electric signal etc. between the inside and outside of the airtight container while maintaining airtightness of the airtight container by a simple configuration.

A terminal module (10) is provided with a terminal fitting (12) to be connected to an end part of a cable (11), a rubber plug (13) to be held in close contact with the outer periphery of the cable (11), a housing (14) for supporting the terminal fitting (12), and a cover (15) to be mounted on the housing (14) to cover the terminal fitting (12). The rubber plug (13) is sandwiched and held between the housing (14) and the cover (15).

The connection device for connecting two electric units, including a case in which are arranged: an electric wire to be linked to the first unit and including a conductive core encircled by an insulating sheath and a conductive tab to be linked to the second unit and secured with the stripped end of the conductive core, all of which being immersed in a sealing material filling the case and bonded to the insulating sheath, the device including an intermediate envelope partially coating the insulating sheath, so that it is in contact with the sealing material only over a reduced portion, where the intermediate envelope is in sliding contact with the sealing material and/or the insulating sheath.