Connecting cable, cable connector, charger and charger assembly with improved heat dissipation structure

A charger, comprising:

• a charger plug;
• and
• a connecting cable connected to the charger plug;
• wherein the charger plug comprises a heat dissipation fan, the connecting cable comprises a first end, a second end, and a heat dissipation channel in communication with the first end and the second end, the first end is indirectly connected to the charger plug, the second end is adapted to connect with an electronic device;
• wherein the connecting cable comprises a plurality of core wires and a heat dissipation pipe wrapped by the plurality of core wires;
• the heat dissipation channel is hollow and formed in the heat dissipation pipe;
• the heat dissipation channel is configured to communicate with an outside environment through the first end and the second end;
• wherein the first end, the heat dissipation channel and the second end are configured to allow air to flow in from one of the first end and the second end, pass through the heat dissipation channel, and flow out from a remaining one of the first end and the second end;
• wherein the heat dissipation fan is configured to promote the air to flow so that heat generated by the electronic device is dissipated through the first end, the heat dissipation channel and the second end;
• wherein the first end of the connecting cable is connected to a first connector, and the charger plug comprises a mating connector that is mateable with the first connector;
• and
• wherein the first connector comprises a first insulating coating shell, and the first insulating coating shell is provided with at least one first heat dissipation through hole in communication with the heat dissipation channel.