Patent Publication Number: US-2021175738-A1

Title: Movable Wind Power Charging Device

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to a charging device and, more particularly, to a movable wind power charging device. 
     2. Description of the Related Art 
     A conventional electric transportation comprises a battery to supply an electric power. The battery is charged previously so as to provide the required electric power to the electric transportation. However, the battery has a determined working time, thereby limiting the travel distance of the electric transportation. In addition, the battery is not easily charged outdoors, thereby causing inconvenience to the driver when needing to charge the battery at the outdoor place. 
     BRIEF SUMMARY OF THE INVENTION 
     The primary objective of the present invention is to provide a movable wind power charging device that uses a wind power to charge an electric transportation successively during movement of the electric transportation. 
     In accordance with the present invention, there is provided a movable wind power charging device comprising a shaft, at least one stator secured on the shaft, a rotor rotatably mounted on the shaft and surrounding the at least one stator, and at least one impeller secured on the rotor. The at least one stator includes a plurality of stator coil windings. The at least one stator has a center provided with a hole allowing passage of the shaft. The rotor has a center provided with a bearing mounted on the shaft. The rotor has an interior having a periphery provided with a plurality of magnets corresponding to the stator coil windings of the at least one stator. The shaft extends through the hole of the at least one stator. The rotor is mounted on the shaft and covers the at least one stator, with the bearing of the rotor being locked onto the shaft. The movable wind power charging device is mounted on a transportation which includes a battery. An electric cord is connected between the at least one stator of the movable wind power charging device and the battery of the transportation. 
     According to the primary advantage of the present invention, the movable wind power charging device transforms the wind power into an electric energy, to achieve an environmental protection function by a green energy. 
     According to another advantage of the present invention, the movable wind power charging device charges the battery of the electric transportation successively during movement of the electric transportation, so as to increase the working time of the battery. 
     According to a further advantage of the present invention, the movable wind power charging device directly charges the battery outdoors, thereby facilitating the driver charging the electric transportation. 
     According to a further advantage of the present invention, the electric transportation is charged during movement without being affected by the weather condition. 
     Further benefits and advantages of the present invention will become apparent after a careful reading of the detailed description with appropriate reference to the accompanying drawings. 
    
    
     
       BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWING(S) 
         FIG. 1  is an exploded perspective view of a movable wind power charging device in accordance with the first preferred embodiment of the present invention. 
         FIG. 2  is a perspective view of the movable wind power charging device in accordance with the preferred embodiment of the present invention. 
         FIG. 3  is a perspective view showing the movable wind power charging device for a first transportation. 
         FIG. 4  is a perspective view of a movable wind power charging device having a wind collecting cover. 
         FIG. 5  is a perspective view showing the movable wind power charging device for a second transportation. 
         FIG. 6  is a perspective view of a movable wind power charging device having a wind collecting cover. 
         FIG. 7  is a perspective view of a movable wind power charging device in accordance with the second preferred embodiment of the present invention. 
         FIG. 8  is an exploded perspective view of a movable wind power charging device in accordance with the third preferred embodiment of the present invention. 
         FIG. 9  is a perspective assembly view of the movable wind power charging device as shown in  FIG. 8 . 
         FIG. 10  is a perspective view showing the movable wind power charging device for the first transportation. 
         FIG. 11  is a perspective view showing the movable wind power charging device for a third transportation. 
     
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     Referring to the drawings and initially to  FIGS. 1 and 2 , a movable wind power charging device  1  in accordance with the preferred embodiment of the present invention comprises a shaft  10 , at least one stator (magnetic unit)  11  secured on the shaft  10 , a rotor (or rotary disk)  12  rotatably mounted on the shaft  10  and surrounding the at least one stator  11 , and at least one impeller  13  secured on the rotor  12 . 
     The at least one stator  11  is disposed in the rotor  12  and includes a plurality of stator coil windings (or stator windings or magnetic coils)  110 . The at least one stator  11  has a center provided with a hole  111  allowing passage of the shaft  10 . The rotor  12  has a center provided with a bearing  120  mounted on the shaft  10 . The rotor  12  has an interior having a periphery provided with a plurality of magnets (or magnetic blocks)  121  corresponding to the stator coil windings  110  of the at least one stator  11 . The at least one impeller  13  is a common impeller. 
     In assembly, the at least one impeller  13  is initially secured on the rotor  12 . The shaft  10  extends through the hole  111  of the at least one stator  11 . Then, the rotor  12  is mounted on the shaft  10  and covers the at least one stator  11 , with the bearing  120  of the rotor  12  being locked onto the shaft  10 . Thus, the movable wind power charging device  1  is assembled. 
     In operation, referring to  FIG. 3  with reference to  FIGS. 1 and 2 , the movable wind power charging device  1  is mounted on a transportation (or transit or vehicle)  2  which includes a battery  20 . An electric cord  14  is connected between the at least one stator  11  of the movable wind power charging device  1  and the battery  20  of the transportation  2 . Preferably, the transportation  2  is an electric motorcycle. In such a manner, when a wind power is applied to the at least one impeller  13 , the at least one impeller  13  is driven and rotated by the wind power, such that the rotor  12  is driven by the at least one impeller  13  to rotate relative to the at least one stator  11 . When the rotor  12  is rotated relative to the at least one stator  11 , the magnets  121  of the rotor  12  are moved relative to the stator coil windings  110  of the at least one stator  11 , to perform a magnetic interaction, so as to produce a magnetic field having a magnetic force which is transformed into an electric current or power by a magnetic conversion. Then, the electric power generated by rotation of the at least one impeller  13  is delivered through the electric cord  14  to the battery  20  of the transportation  2 , and is stored in the battery  20 . Thus, the battery  20  is charged during movement of the transportation  2 . In addition, when the speed of the transportation  2  is increased, the rotation speed of the at least one impeller  13  is increased, such that the generating quantity of electricity is increased, thereby shortening the time for charging the battery  20  of the transportation  2 . 
     Referring to  FIG. 4  with reference to  FIGS. 1 and 2 , a wind collecting cover (or hood)  15  is located at a front end of the movable wind power charging device  1 , to collect and concentrate the wind power, so as to increase the rotation speed of the at least one impeller  13 . The wind collecting cover  15  has an opening extending through a whole length of the wind collecting cover  15 . The wind collecting cover  15  has a dimension that is decreased gradually from front to back, to increase a wind facing area, and to focus the wind power, such that the at least one impeller  13  is revolved rapidly, so as to enhance the generating quantity. 
     Referring to  FIGS. 5 and 6  with reference to  FIGS. 1 and 2 , the transportation is an electric car  3  which includes a battery  30 . The electric cord  14  is connected between the at least one stator  11  of the movable wind power charging device  1  and the battery  30  of the electric car  3 . 
     Referring to  FIG. 7  with reference to  FIGS. 1 and 2 , the movable wind power charging device comprises a plurality of, preferably two, stators  11  mounted in and covered by the rotor  12 . Thus, the two stators  11  cooperate with the rotor  12  to produce a larger magnetic field, and to generate a larger electric power, so as to increase the generating quantity. 
     Referring to  FIGS. 8-10  with reference to  FIGS. 1 and 2 , the movable wind power charging device  1  comprises a plurality of impellers  13  which are combined and assembled together. In such a manner, the impellers  13  are rotated synchronously, to accelerate rotation of the rotor  12 . Thus, the impellers  13  increase a wind facing area, such that the rotation speed is increased, so as to enhance the generating quantity. 
     Referring to  FIG. 11  with reference to  FIGS. 1 and 2 , the transportation is a petrol (or gasoline) car  4  which includes a battery  40 . The electric cord  14  is connected between the at least one stator  11  of the movable wind power charging device  1  and the battery  40  of the petrol car  4 . Thus, the battery  40  of the petrol car  4  is charged by the movable wind power charging device  1 . After the electric power of the battery  40  is full, the battery  40  is taken out and used for other purpose. 
     Accordingly, the movable wind power charging device  1  transforms the wind power into an electric energy, to achieve an environmental protection function by a green energy. In addition, the movable wind power charging device  1  charges the battery of the electric transportation successively during movement of the electric transportation, so as to increase the working time of the battery. Further, the movable wind power charging device  1  directly charges the battery outdoors, thereby facilitating the driver charging the electric transportation. Further, the electric transportation is charged during movement without being affected by the weather condition. 
     Although the invention has been explained in relation to its preferred embodiment(s) as mentioned above, it is to be understood that many other possible modifications and variations can be made without departing from the scope of the present invention. It is, therefore, contemplated that the appended claim or claims will cover such modifications and variations that fall within the scope of the invention.