Abstract:
A submerged motor for use in an aquarium is disclosed to include a housing one or water input ports and two water output ports, a driving mechanism having a left-sided water pumping device and a right-sided water pumping device for pumping water through the water input ports and the water output port in different directions, and an electric controller electrically connected with the driving mechanism for controlling operation of the left-sided water pumping device and the right-sided water pumping device to change direction and flowing speed of the pumped water.

Description:
BACKGROUND OF THE INVENTION 
       [0001]    1. Field of the Invention 
         [0002]    The present invention relates to a submerged motor and more particularly, to a submerged motor for use in an aquarium that causes movement of water resembling natural water waves. 
         [0003]    2. Description of the Related Art 
         [0004]    An aquarium generally has a submerged motor mounted therein for pumping water, causing water to move in the aquarium. A submerged motor for this purpose generally comprises a housing defining a water inlet and a water outlet, and a water pump mounted inside the housing for pumping water into the water outlet and forcing water out of the water outlet. The flowing direction of pumped water is constantly the same, resulting in low oxygen consumption rate that is not optimal for raising fish and other water animals. 
         [0005]    Therefore, it is desirable to provide a submerged motor for aquarium that eliminates the aforesaid drawbacks. 
       SUMMARY OF THE INVENTION 
       [0006]    The present invention has been accomplished under the circumstances in view, it is one object of the present invention to provide a submerged motor for use in an aquarium, which causes movement of water resembling natural water waves, raising oxygen consumption rate. 
         [0007]    To achieve this and other objects of the present invention, the submerged motor is for use in an aquarium, comprising a housing one or water input ports and two water output ports, a driving mechanism having a left-sided water pumping device and a right-sided water pumping device for pumping water through the water input ports and the water output port in different directions, and an electric controller electrically connected with the driving mechanism for controlling operation of the left-sided water pumping device and the right-sided water pumping device to change direction and flowing speed of the pumped water. 
         [0008]    In one embodiment of the present invention, the left-sided water pumping device and a right-sided water pumping device are water pumps. 
         [0009]    In another embodiment of the present invention, the driving mechanism comprises further comprises a magnetic rotor rotatably mounted inside the housing, and a winding mounted inside the housing around the magnetic rotor and controllable by the electric controller to cause rotation of the magnetic rotor in one of two reversed directions. Further, the left-sided water pumping device and a right-sided water pumping device are vanes respectively fastened to the two opposite ends of the magnetic rotor for synchronous rotation. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0010]      FIG. 1  is a schematic front view of a submerged motor in accordance with a first embodiment of the present invention. 
           [0011]      FIG. 2  is a schematic front view of a submerged motor in accordance with a second embodiment of the present invention. 
           [0012]      FIG. 3  is a schematic front view of a submerged motor in accordance with a third embodiment of the present invention. 
           [0013]      FIG. 4  is a schematic front view of a submerged motor in accordance with a fourth embodiment of the present invention. 
           [0014]      FIG. 5  is a schematic front view of a submerged motor in accordance with a fifth embodiment of the present invention. 
       
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
       [0015]    Referring to  FIG. 1 , a submerged motor in accordance with a first embodiment of the present invention is shown comprising a housing  1 , which has a water input port  11  on the middle of the front wall and two water output ports  21  and  21 A at the left and right sides of the front wall, a left pump  2  and a right pump  2 A respectively mounted in the housing  1  at two opposite lateral sides, and an electric controller  3  electrically connected with the left pump  2  and the right pump  2 A and extending out of the housing  1 . The electric controller  3  controls the left pump  2  and the right pump  2 A to operate alternatively. When the left pump  2  is in operation, the right pump  2 A is stopped, and therefore water is pumped into the housing  1  through the water input port  11  and then forced out of the housing  1  through the left-sided water output port  21 . On the contrary, when the right pump  2 A is in operation, the left pump  2  is stopped, and water is pumped into the housing  1  through the water input port  11  and then forced out of the housing  1  through the right-sided water output port  21 A. 
         [0016]    Referring to  FIG. 2 , a submerged motor in accordance with a second embodiment of the present invention is shown comprising a housing  1 , which has a water input port  11  on the middle and two water output ports  41  and  41 A at the two distal ends, a left pump  4  and a right pump  4 A respectively mounted inside the housing  1  at two ends near the water output ports  41  and  41 A, and an electric controller  3  electrically connected with the left pump  4  and the right pump  4 A and extending out of the housing  1 . The electric controller  3  controls the left pump  4  and the right pump  4 A to operate alternatively. When the left pump  4  is in operation, the right pump  4 A is stopped, and therefore water is pumped into the housing  1  through the water input port  11  and then forced out of the housing  1  through the left-sided water output port  41 . On the contrary, when the right pump  4 A is in operation, the left pump  4  is stopped, and water is pumped into the housing  1  through the water input port  11  and then forced out of the housing  1  through the right-sided water output port  41 A. 
         [0017]    Referring to  FIG. 3 , a submerged motor in accordance with a third embodiment of the present invention is shown comprising a housing  1 , which has two water input ports  51  and  51 A respectively disposed on the left and right sides of the front wall and two water output ports  52  respectively disposed at the two distal ends thereof, a left pump  5  and a right pump  5 A respectively mounted inside the housing  1  near the two opposite ends of the housing  1 , and an electric controller  3  electrically connected with the left pump  5  and the right pump  5 A and extending out of the housing  1 . The electric controller  3  controls the left pump  5  and the right pump  5 A to operate alternatively. When the left pump  5  is in operation, the right pump  5 A is stopped, and therefore water is pumped into the housing  1  through the left-sided water input port  51  and then forced out of the housing  1  through the left-sided water output port  52 . On the contrary, when the right pump  5 A is in operation, the left pump  5  is stopped, and water is pumped into the housing  1  through the right-sided water input port  51 A and then forced out of the housing  1  through the right-sided water output port  52 . 
         [0018]    Referring to  FIG. 4 , a submerged motor in accordance with a fourth embodiment of the present invention is shown comprising a housing  1 , which has two water output ports  61  and  61 A on the two opposite ends thereof and two water input ports  62  and  62 A respectively disposed around the water output ports  61  and  61 A, a left pump  6  and a right pump  6 A respectively mounted inside the housing  1  near the two opposite ends of the housing  1 , and an electric controller  3  electrically connected with the left pump  6  and the right pump  6 A and extending out of the housing  1 . The electric controller  3  controls the left pump  6  and the right pump  6 A to operate alternatively. When the left pump  6  is in operation, the right pump  6 A is stopped, and therefore water is pumped into the housing  1  through the right-sided water input port  62  and then forced out of the housing  1  through the left-sided water output port  61 . On the contrary, when the right pump  6 A is in operation, the left pump  6  is stopped, and water is pumped into the housing  1  through the left-sided water input port  62  and then forced out of the housing  1  through the right-sided water output port  61 A. 
         [0019]    Referring to  FIG. 5 , a submerged motor in accordance with a fifth embodiment of the present invention is shown comprising a housing  1 , a magnetic rotor  7  horizontally rotatably mounted in the housing  1 , two vanes  71  and  71 A respectively coupled to the two opposite ends of the magnetic rotor  7 , a winding  8  mounted inside the housing  1  around the magnetic rotor  7 , and an electric controller  3  electrically connected with the winding  8  and extending out of the housing  1 . By means of changing the direction of electric current to the winding  8  subject to the control of the electric controller  3 , the direction of rotation of the two vanes  71  and  71 A is relatively controlled. When the two vanes two vanes  71  and  71 A are rotated clockwise, they pump water through the housing  1  in direction from the right side toward the left side. When the two vanes two vanes  71  and  71 A are rotated counter-clockwise, they pump water through the housing  1  in direction from the left side toward the right side. 
         [0020]    Although particular embodiments of the invention have been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the invention. Accordingly, the invention is not to be limited except as by the appended claims.