A center conductor 20 has an abutment portion 22A placed in surface contact with a dielectric body 30 from below, the dielectric body 30 has a first dielectric body 31 and a second dielectric body 32 provided in contact with the first dielectric body 31 from below, the first dielectric body 31 has a lower dielectric dissipation factor than the dielectric dissipation factor of the second dielectric body 32, the second dielectric body 32 has a higher deflection temperature under load than the first dielectric body 31, and the surface area of the top face placed in surface contact with the bottom face of the first dielectric body 31 is larger than the surface area of the top face of the abutment portion 22A placed in surface contact with the bottom face of the second dielectric body 32.

Electrical connector systems having connector components and removable heat sink modules are disclosed. According to an aspect, an electrical connector system includes a first connector component that is electrically conductive and that includes a first conductive interface. The electrical connector system also includes a second connector component that is electrically conductive and that includes a second conductive interface. The first and second conductive interfaces are configured to operatively connect to each other. Further, the electrical connector system includes a heat sink module configured to removably attach to the second connector component and configured to transfer heat energy away from the second connector component.

Electrical connector systems having connector components and removable heat sink modules are disclosed. According to an aspect, an electrical connector system includes a first connector component that is electrically conductive and that includes a first conductive interface. The electrical connector system also includes a second connector component that is electrically conductive and that includes a second conductive interface. The first and second conductive interfaces are configured to operatively connect to each other. Further, the electrical connector system includes a heat sink module configured to removably attach to the second connector component and configured to transfer heat energy away from the second connector component.

An electrical connection assembly includes a charging terminal, a power transmission component, a heat dissipation block, and a fastener. The charging terminal has a first connection end. The power transmission component includes a metal busbar with a second connection end. The fastener fastens the first connection end, the second connection end, and the heat dissipation block together. The heat dissipation block is in thermal contact with the first connection end or is simultaneously in thermal contact with the first connection end and the second connection end.

An electrical connection assembly includes a charging terminal, a power transmission component, a heat dissipation block, and a fastener. The charging terminal has a first connection end. The power transmission component includes a metal busbar with a second connection end. The fastener fastens the first connection end, the second connection end, and the heat dissipation block together. The heat dissipation block is in thermal contact with the first connection end or is simultaneously in thermal contact with the first connection end and the second connection end.

A connection device includes a connector assembly and a heat sink assembly. The connector assembly includes an inserting passageway which allows a pluggable assembly to insert therein along an inserting direction. The heat sink assembly is provided outside the connector assembly and includes a cold plate and a slidable mechanism. The cold plate has a main body and a heat dissipating base. The main body is used to allow a cooling liquid to flow in an interior of the main body. The heat dissipating base is capable of floating relative to the main body and is used to thermally engage with the pluggable assembly. The slidable mechanism is movably provided to the cold plate, and a part of the slidable mechanism extends into the inserting passageway and is capable of allowing the pluggable assembly to push. In a process that the pluggable assembly inserts into the inserting passageway, the slidable mechanism is pushed and moved by the pluggable assembly to bring the heat dissipating base to move so that the heat dissipating base converts from a state that the heat dissipating base is spaced apart from the pluggable assembly to a state that the heat dissipating base contacts the pluggable assembly.

A connection device includes a connector assembly and a heat sink assembly. The connector assembly includes an inserting passageway which allows a pluggable assembly to insert therein along an inserting direction. The heat sink assembly is provided outside the connector assembly and includes a cold plate and a slidable mechanism. The cold plate has a main body and a heat dissipating base. The main body is used to allow a cooling liquid to flow in an interior of the main body. The heat dissipating base is capable of floating relative to the main body and is used to thermally engage with the pluggable assembly. The slidable mechanism is movably provided to the cold plate, and a part of the slidable mechanism extends into the inserting passageway and is capable of allowing the pluggable assembly to push. In a process that the pluggable assembly inserts into the inserting passageway, the slidable mechanism is pushed and moved by the pluggable assembly to bring the heat dissipating base to move so that the heat dissipating base converts from a state that the heat dissipating base is spaced apart from the pluggable assembly to a state that the heat dissipating base contacts the pluggable assembly.

A submersible, high-voltage electrical connector that includes a female connector and a male connector. The female connector has an interior chamber and a conduit configured to connect the interior chamber to an evacuation pump. The male connector is configured to fit within the chamber of the female connector. The conduit of the female connector is further configured to, when the male connector and the female connector are mated, substantially evacuate any liquid from the chamber of the female connector.

A submersible, high-voltage electrical connector that includes a female connector and a male connector. The female connector has an interior chamber and a conduit configured to connect the interior chamber to an evacuation pump. The male connector is configured to fit within the chamber of the female connector. The conduit of the female connector is further configured to, when the male connector and the female connector are mated, substantially evacuate any liquid from the chamber of the female connector.

A connector-equipped electrical wire includes a connector housing in which a cavity is formed and a terminal-equipped electrical wire inserted into the cavity. In a first state before full fastening by a full fastening portion is achieved and in which a first cavity communicates with a second cavity corresponding thereto, a first portion of the terminal-equipped wire is configured to pass through the second cavity and fit into the first cavity, and a second portion of the terminal-equipped wire is fitted into the second cavity. In a second state in which full fastening by the full fastening portion is achieved, when observed in an axial direction of the cavity, a regulatory surface of an inner surface of the second cavity approaches closer to the second portion than when in the first state.