Patent Publication Number: US-2018051667-A1

Title: Flowing water hydroelectric generator

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     This invention relates to a flowing water hydroelectric generator, in particular to a hydroelectric generator consisted of a motor, an overdrive gear set, a shaft, a housing and an impeller. The generator can produce more power because of the motor&#39;s rotating speed-up driven by the overdrive gear set turned by the shaft spun by the impeller swiveled by flowing water. Furthermore, the invention has a variety of installing combinations in ditch or channel in order to fulfill surface of the ditch or channel and it is easily installed or removed. The motor is water proof to prolong its&#39; service life and it has great capacity and good transmission so as to achieve the best power generation efficiency. 
     2. Description of the Prior Art 
     Commonly, a hydroelectric generator in ditch or river is consisted of a flowing device and a hollow housing including an impeller assembled with a transmitting chain underneath the flowing device able to be interacted with a motor defined on top of the flowing device. The impeller can be swiveled by flowing water to drive the transmitting chain interacting with the motor in order to produce power. However, the flowing device consisted of a motor and a housing including a transmitting chain is not only huge but also bad capacity, bad transmission and short service life. Additionally, the device is occupied lots of spaces in the ditch or river in case of installing, and its power generation efficiency is quiet limited so the economic benefit is not good either. 
     SUMMARY OF THE INVENTION 
     The objective of a flowing water hydroelectric generator in present invention is able to produce more power by increasing rotating speed of a motor driven by an overdrive gear set. Furthermore, the generator has a variety of installing combinations in ditch so as to fulfill surface of the ditch and it is easily installed or removed. Moreover, the motor is water proof to prolong its&#39; service life and it has great capacity and good transmission to achieve the best power generation efficiency. 
     The generator in the present invention is consisted of a motor attached by a power cord having an axial with a first positioning member defined on outer wall of the axial and couple fixed axles all deposed at one side of the motor and various supporting portions placed outer wall of the motor; an overdrive gear set able to be assembled on the axial and the fixed axles of the motor having a sun gear with a first groove deposed at inner wall of the sun gear, several planet gears and a ring gear having a gear hole with a second groove defined at inner wall of the gear hole at center of the ring gear; a shaft able to be inserted through the gear hole of the ring gear having a second positioning member at one end and both of a flange and a third positioning member located outer wall of the shaft and a threaded portion located at the other end; a housing able to block and seal the overdrive gear set on the motor having a chamber communicating with a bore and a bearing placed in the bore; and an impeller installed on the third positioning member of the shaft having a shaft hole with a third groove deposed at inner wall of the shaft hole and connected by a nose cone. 
     The generator in the present invention, wherein, plural threaded holes deposed at one side of the motor and plural perforations defined at one side of housing are corresponding to each other and a sealing ring is threaded on the housing. 
     The generator in the present invention, wherein, numerous threaded holes deposed at one end of the shaft can correspond and connect to a restrictive plate of the shaft by using some fasteners. 
     The generator in the present invention, wherein, the supporting portions are held by multiple rods assembled inside of a cover consisted of several sheets and a protective net in front of the cover. 
     The generator in the present invention, wherein, the cover is placed on a holder including a board and two lateral vertical bars. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
       This invention will be better understood by referring to the accompanying drawings, wherein: 
         FIG. 1  is first exploded perspective view of an exemplary embodiment of the present invention; 
         FIG. 2  is second exploded perspective view of an exemplary embodiment of the present invention; 
         FIG. 3  is a perspective view of an exemplary embodiment of the present invention; 
         FIG. 4  is a cross-sectional view of an exemplary embodiment of the present invention; 
         FIG. 5  is a schematic view of an exemplary embodiment showing the present invention in condition of use, and 
         FIG. 6  is a schematic view illustrating an exemplary embodiment of the present invention in condition of use. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     An exemplary embodiment of the present invention, referring to  FIG. 1 ˜ 2 , a flowing water hydroelectric generator  9  in present invention mainly comprises a motor set  1 , an overdrive gear set  2 , a shaft  3 , a housing  4  and an impeller  5 . The motor set  1  is consisted of a motor  10  attached with a power cord  11  having an axial  12 , couple fixed axles  13  and plural threaded holes  14 . At wall of the axial  12  is deposed a first positioning member  15 . At outer wall of the motor  10  is defined various supporting portions  16 . The overdrive gear set  2  assembled on the axial  12  and the fixed axles  13  includes a sun gear  20 , several planet gears  21  and a ring gear  22 . At inner wall of the sun gear  20  is defined a first groove  200 . At center of the ring gear  22  is defined a gear hole  220  which has a second groove  221  at inner wall of the gear hole  220 . The shaft  3  inserted through the gear hole  220  of the gear ring  22  has numerous threaded holes  30  able to correspond and connect to a restrictive plate  31  by using some fasteners B and a second positioning member  31  at one end. At outer wall of the shaft  3  is deposed a flange  33  and a third positioning member  34 . At the other end of the shaft  3  is defined a threaded portion  35 . The housing  4  assembled on the motor  10  to seal and block the overdrive gear set  2  has a chamber  40  communicating with a bore  41 . A bearing  42  placed inside of the bore  41  is inserted on the shaft  3 . At one side of the housing  4  are deposed plural perforations  43 . The housing  4  is threaded and connected by a sealing ring  44 . The impeller  5  assembled on the third positioning member  34  of the shaft  3  has a shaft hole  50  with a third groove  52  located at the inner wall of the shaft hole  50 . The impeller  5  is connected by a nose cone  52 . 
     While assembling, referring to  FIG. 1 ˜ 4 , the sun gear  20  and the planet gears  21  of the overdrive gear set  2  are respectively placed on the axial  12  and the fixed axle  13  of the motor  10  so the first positioning member  15  of the axial  12  is able to be inserted into the first groove  200  of the sun gear  20  and a washer A is used to fix them together. Then, the shaft  3  is protruded through the bore  41  and the bearing  42  of the housing  4  so the shaft  3  is located in the chamber  40  of the housing  4  and extended out of the bore  42  of the housing  4 . The second positioning member  31  of the shaft  3  is reached and assembled on the second groove  221  and the gear hole  220  of the ring gear  22 . The threaded holes  30  of the shaft  3  is secured and threaded with a restrictive plate  32  by the fasteners B so as to the ring gear  22  can be positioned in the chamber  40  of the housing  4 . The housing  4  is mounted on the motor  10  by the fasteners B threaded through the perforations  43  of the housing  4  and secured on the threaded holes  14  of the motor  10  in order to seal and block the overdrive gear set  2 . The sealing ring  44  is fixed on the on housing  4  by the fasteners B threaded on the rest of the perforations  43 . After placing a washer A on the shaft  3 , the third positioning member  34  of the shaft  3  is inserted through the third groove  51  and the shaft hole  50  of the impeller  5  and another washer A is placed on the shaft  3 . A nut C is used to be secured on the threaded portion  35  of the shaft  3 . The nose cone  52  is threaded in front of the impeller  5  by the fasteners B. Referring to  FIG. 5 , the supporting portions  16  of the motor  10  are held by multiple rods  6  which one of the rods  6  is used to sleeve around the power cord  11 . The rods  6  is located inside of a cover  7  consisted several sheets and a protective net  71  in front of the cover  7 . The cover  7  is placed on a holder  8  including a board  80  and two lateral vertical bars  81 . 
     While using, referring to  FIG. 4 ˜ 6 , all it has to do is let flowing water drive the impeller  5  and the nose cone  52  swiveling so that the impeller  5  can interact with the shaft  3  spinning because the third positioning member  34  of the shaft  3  is secured on the third groove  51  and the shaft hole  50  of the impeller  5 . By having the second position member  31  of the shaft  3  secured on the second groove  221  and the gear hole  220  of the ring gear  22 , the shaft  3  can turn the ring gear  22  around so that the ring gear  22  can drive the planet gears  21  rotating and then the planet gears  21  can interact with the sun gear  20  which means the overdrive gear set  2  is meshed to run. Due to the first positioning member  15  of axial  12  of the motor  10  is secured in the first grove  200  of the sun gear  20 , the sun gear  20 , the planet gears  21  and the ring gear  22  of the overdrive gear set  2  can drive the motor  10  speeding up in order to produce more power. Furthermore, the flowing water hydroelectric generator  9  in the present invention has a variety of installing combinations in the ditch or channel in order to fulfill surface of the ditch or channel and it is easily installed or removed. The motor  10  is completely water proof to prolong its&#39; service life and it has great capacity and good transmission so as to achieve the best power generation efficiency. 
     While the preferred embodiments of the present invention have been described above, it will be recognized and understood that various modifications may be made therein and that the claims are intended to cover all such modifications that may fall within the spirit and scope of the invention.