In an electronic device, a heat sink is supported to be movable in a first direction relative to a receptacle shell. A contact surface of a plug shell and a heat releasing surface of the heat sink are formed as inclined surfaces. A pressing member is disposed between the heat sink and the receptacle shell. The receptacle shell includes a guide portion (cam groove) configured to regulate movement of the heat sink in a negative second direction when the heat sink is at a position in a positive first direction relative to the receptacle shell, and to regulate movement of the heat sink in a positive second direction when the heat sink is at a position in a negative first direction relative to the receptacle shell. The heat sink includes a guided portion (columnar protrusion) configured to be guided by the guide portion (cam groove) on the receptacle shell.

An expansion card assembly, including an expansion card body and a connector. The expansion card body includes a notch recessed into an edge thereof. The connector includes a housing. The housing includes a top surface, a bottom surface, and an engaging portion disposed on the bottom surface. The bottom surface is close to the expansion card body. The engaging portion is exposed out of the notch. The engaging portion connects the connector with an external power cord. A user operates the engaging portion at the bottom surface of the housing of the connector with fingers. Therefore, the expansion card assembly and the connector solve the problem that the too narrow space between the top surface of the housing and the other components makes it difficult for the user to stretch fingers into the space between the top surface of the housing and the other component.

An interconnection system for making high voltage connections in harsh environments in which the connector may be subjected to vibrations, such as in a vehicle. A cable connector may have a TPA that can be inserted into the connector housing without openings in a sidewall, which facilitates long creepage paths. A board connector may have fins with portions extending in multiple directions at the mounting interface. Such connectors may be designed with structures that may be lengthened or shortened to establish desired creepage and clearance distances without changing the connector pitch, which may yield economies for designers of systems that use such connectors. Further, such fins, in addition to providing a long creepage path, enable flexible use the same connector housing, such as enabling it to receive terminals that support different mounting technologies for mounting the housing in different orientations.

An interconnection system for making high voltage connections in harsh environments in which the connector may be subjected to vibrations, such as in a vehicle. A cable connector may have a TPA that can be inserted into the connector housing without openings in a sidewall, which facilitates long creepage paths. A board connector may have fins with portions extending in multiple directions at the mounting interface. Such connectors may be designed with structures that may be lengthened or shortened to establish desired creepage and clearance distances without changing the connector pitch, which may yield economies for designers of systems that use such connectors. Further, such fins, in addition to providing a long creepage path, enable flexible use the same connector housing, such as enabling it to receive terminals that support different mounting technologies for mounting the housing in different orientations.