Seven-port USB concentrator capable of high-speed transmission and provided with heat dissipation structure

The invention discloses a 7-port USB hub capable of high-speed transmission and having a heat dissipation structure. The 7-port USB hub comprises a shell (100); a port (102); a heat dissipation mechanism (200); a drive unit (300); the driving part (300) drives the disc gear mechanism to move, so that the heat dissipation mechanism (200) operates to dissipate heat of components in the shell (100), and meanwhile, the operation speed of the heat dissipation mechanism (200) is controlled by controlling the position of the first gear (304), so that the heat dissipation mechanism (200) is high in operation speed and good in heat dissipation effect when a large number of external devices are inserted, and the service life of the heat dissipation mechanism (200) is prolonged. When a small number of external devices are inserted, the heat dissipation mechanism (200) is low in operation speed and low in power consumption and noise, so that the heat dissipation mechanism (200) can be matched with proper heat dissipation