Usb air blower

Abstract

A Universal Serial Bus (USB) air blower includes a housing, a direct current (DC) fan, a discharge element, and a USB interface. The discharge element is arranged on a front end of the housing. The DC fan is installed in the housing. The USB interface is electrically coupled to the DC fan. The discharge element includes a discharge aperture to discharge air generated by the DC fan.

1 . A Universal Serial Bus (USB) air blower comprising:
 a housing;   a direct current (DC) fan installed in the housing;   a discharge element arranged on a front end of the housing, the discharge element comprising a discharge aperture to discharge air generated by the DC fan; and   a USB interface electrically coupled to the DC fan.   
   
   
       2 . The USB air blower as claimed in  claim 1 , wherein the DC fan includes a DC motor therein, one terminal of the motor is electrically coupled to a power terminal of the USB interface, and the other terminal of the motor is electrically coupled to a ground terminal of the USB interface. 
   
   
       3 . The USB air blower as claimed in  claim 2 , further comprising a switch disposed on a top of the housing for turning the DC fan on and off, the switch is electrically connected between the one terminal of the motor and the power terminal of the USB interface. 
   
   
       4 . The USB air blower as claimed in  claim 2 , further comprising a light mounted on a top of the discharge element, the light is electrically connected between the power terminal of the USB interface and the ground terminal of the USB interface. 
   
   
       5 . The USB air blower as claimed in  claim 4 , wherein the light is a light-emitting diode (LED). 
   
   
       6 . The USB air blower as claimed in  claim 1 , further comprising an electrostatic brush attached around the discharge aperture of the discharge element, the housing is generally elongate box-shaped, the discharge element is generally funnel-shaped, a slender discharge end defining the discharge aperture is formed at a front end of the discharge element. 
   
   
       7 . A Universal Serial Bus (USB) air blower comprising:
 a housing comprising a discharge aperture defined on a front end thereof;   a direct current (DC) fan installed in the housing for generating an air current through the discharge aperture when activated; and   a USB interface electrically coupled to the DC fan for supplying power to the DC fan.   
   
   
       8 . The USB air blower as claimed in  claim 7 , wherein the DC fan includes a DC motor therein, one terminal of the motor is electrically coupled to a power terminal of the USB interface, and the other terminal of the motor is electrically coupled to a ground terminal of the USB interface. 
   
   
       9 . The USB air blower as claimed in  claim 8 , further comprising a switch disposed on the housing for turning the DC fan on and off, the switch is electrically connected between the one terminal of the motor and the power terminal of the USB interface. 
   
   
       10 . The USB air blower as claimed in  claim 8 , further comprising a light mounted on the housing, the light is electrically connected between the power terminal of the USB interface and the ground terminal of the USB interface. 
   
   
       11 . The USB air blower as claimed in  claim 10 , wherein the light is a light-emitting diode (LED). 
   
   
       12 . The USB air blower as claimed in  claim 7 , further comprising an electrostatic brush attached around the discharge aperture of the housing, a slender discharge end defining the discharge aperture is formed at the front end of the housing.