Patent Publication Number: US-2003231956-A1

Title: Illuminant Electric fan

Description:
BACKGROUND OF THE INVENTION  
       [0001] The prior art of the electric fan simply works for heat dissipation. It presents a monotonous and rigid appearance with no diverse colors; that is to say, it does not take advantages of the technological advances to promote life quality and make the environment more colorful and joyful. Taking advantages of the technological advance to promote life quality and make the environment more colorful is the key purpose of this invention. In additional to heat dissipation, the electric fan the inventor intends to develop has substantial added value, powerful competitive edge, attractive luminescence and wonderful vision.  
       SUMMARY OF THE INVENTION  
       [0002] The main object of the invention is to provide an illuminant electric fan, on the rim of the fan tunnel is provided with insert holes to be filled with a string of LED lamps in series connection. When the rotation of the fan blade generates a convectional airflow to effectively dissipate the heat around, in the meantime, the fan blade refracts the light beam emitted from the LED lamps to from a wonderful vision, which certainly increases the added value and competition.  
       [0003] Another object of the invention is to provide an illuminant electric fan which has a common circuit lining the LED lamps string and the fan blade assembly in series in which the LED lamp circuit serves as a detective circuit for the fan blade assembly, easy for repair work.  
       [0004] Another object of the invention is to provide the base frame of the electric fan with a CPU controller which controls the centrifugal fan blade and enhance the convectional flow.  
       [0005] The special features and the structure of the illuminant electric fan of the invention are explained in great details with the aid of the preferable embodiment as illustrated in the attached drawings. 
     
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
     [0006]FIG. 1 shows a stereo appearance of an illuminant electric fan of the invention.  
     [0007]FIG. 2 shows an arrangement of LED lamps and a base frame of an illuminant electric fan of the invention.  
     [0008]FIG. 3 is a schematic diagram of convectional airflow and light radiation of an illuminant electric fan of the invention.  
     [0009]FIG. 4 is a disassembly of an illuminant electric fan of the invention.  
     [0010]FIG. 5 shows a wire circuit of LED lamps and a PCB of an illuminant electric fan of the invention.  
     [0011]FIG. 6 shows an arrangement of two fan blade assembly piled together.  
     [0012]FIG. 7 shows an embodiment of another illuminant electric fan of the invention.  
    
    
     DETAILED DESCRIPTION OF THE INVENTION  
     [0013] As shown in FIGS. 1 through 5, the illuminant electric fan is mainly composed of a base frame  1 , a fan blade assembly  2  and a plurality of LED lamps  3 . Where the axle of the fan blade  21  of the fan blade assembly  2  is fastened in the center recess  111  of the fan tunnel  11  of the base frame  1 , permitting the fan blade  21  to rotate in the hollow tunnel  12 . While the fan blade  21  is running, the airflow comes from one side and goes out at other side as shown in FIG. 3 and dispels heat away. The fan blade  21  can be made of luminous material and it emits luminescence while in rotation.  
     [0014] The hollow tunnel  12  provides a plurality of insert holes  121 . As shown in FIGS. 2 and 4, there are four insert holes  121  illustrated and each insert hole is filled with an LED lamp  3 . These four LED lamps are linked in series with a wire on the PCB  31 . The wire on the PCB  31  further links in series with a power wire  22  of the fan blade assembly  2 . When the fan blade assembly  2  is powered, the fan blade  21  produces convectional airflow to dispel heat, the power further lights the LED lamps on the hollow tunnel  12  of the base frame  1 , as shown in FIG. 3. This design performs to dispel heat and promotes powerful competition.  
     [0015] In addition, the LED lamps  3  and the fan blade assembly  2  share jointly a common circuit where the lighting of the LED lamp  3  can serve as s sensor to see good conductivity of power wire  22  linked to the fan blade assembly  2 . It is another performance the LED lamp  3  provides.  
     [0016] As shown in FIG. 2, there are several sets of lock holes  13  on the base frame  1 . The inner lock holes  13  are employed to lock up the centrifugal fan blade assembly. The outer lock holes  13  are used to install a CPU-controlled fan blade assembly  4  as shown FIG. 6 to reinforce the convectional airflow. As shown in FIG. 7, the LED lamp  3  is disposed on the circuit board  23  of the fan blade assembly  2 , which causes the light beam flashing among the gap of the fan blade  21  to generate another imaginary vision.  
     [0017] View from the above statement, the illuminant electric fan achieves twofold purposes: to dissipate heat and produce a wonderful vision, so it is really a novel and practicable invention.