Connector and shell assembly thereof

The invention relates to a connector and a shell assembly thereof. The shell assembly of the connector comprises an insulator. The insulator is provided with a contact piece installation cavity. A metal heat conducting layer is fixed on the inner wall and/or the periphery of the insulator. The insulator is provided with insulator heat dissipation holes on the side wall of the contact piece installation cavity, wherein the insulator heat dissipation holes are communicated with the contact piece installation cavity and the outer peripheral surface of the insulator. Heat conducting layer heat dissipation holes are formed in the metal heat conducting layer. The heat conducting layer heat dissipation holes are communicated with the insulator heat dissipation holes to form heat dissipation channels for heat dissipation. On one hand, the metal heat conduction layer can form a heat dissipation channel between the interior of the insulator and outside air, so the heat is freely dissipated, heatconduction can be performed on the dissipated heat through the metal heat conduction layer, heat is conducted and dissipated through the high heat conduction performance of metal, restraining of temperature rise of the contact piece is achieved through the composite heat dissipation effect of the heat dissipation channel and the metal heat conduction layer, heat dissipation of the connector is accelerated, the effect is remarkable, and the structure is simple.