Abstract:
An inductive power supply device comprises a battery module, an induction coil module, and a magnetic control module connected to the induction coil module. The magnetic control module comprises a main control module, a coil-driving module, an interface module, a circuit protection module and a wireless identification module. The coil-driving module, the interface module, the circuit protection module and, the wireless identification module are all electrically connected to the main control module respectively. The present invention also provides an inductive power supply system, which supplies a common platform of power supply to all household appliances, and brings a great convenience to users.

Description:
CROSS REFERENCE TO RELATED APPLICATIONS 
       [0001]    The present application claims priority to Republic of China Patent Application No. Serial No: 97103448, filed on Jan. 30, 2008, the entire disclosure of which is incorporated herein by reference. 
       FIELD OF THE INVENTION 
       [0002]    The present invention relates to a power supply for household appliances, more particularly to an inductive power supply device and system comprising the same. 
       RELATED ART 
       [0003]    As the technology develops, more and more household appliances come into people&#39;s lives which bring great advantages. Such household appliances use electricity as power supply for functioning. For example, the water heater heats water by transferring the electrical energy into heat energy via electronic element, and the mixer achieves its mixing function via the motor driven by electrical energy to drive relevant parts. Household appliances often are operated by batteries that are either rechargeable or non-rechargeable. The household appliance of rechargeable mode must be charged by a charger periodically, while the household appliance of non rechargeable mode is supplied power by its power plug connected to the electric supply directly. Different household appliances, however, of rechargeable mode need different chargers. As the number of household appliances in the home increases, more and more chargers are needed, causing cluttering. 
       SUMMARY OF THE INVENTION 
       [0004]    The present invention provides an inductive power supply device and system, whose primary object is to overcome the above disadvantages of the conventional power supply, providing a common platform of power supply. Such object of the present invention will become apparent in the ensuing description: 
         [0005]    In one embodiment, an inductive power supply of the present invention comprises:
   a battery module;   an induction coil module; and   a magnetic control module connected to the induction coil module, wherein the magnetic control module comprises a main control module, a coil-driving module, an interface module, a circuit protection module and a wireless identification module; and wherein the coil-driving module, the interface module, the circuit protection module and, and the wireless identification module are all electrically connected to the main control module respectively.   
 
         [0009]    In another embodiment, the inductive power supply system is provided which comprises:
   a battery module;   a magnetic control module electrically connected to the battery module, wherein the magnetic control module comprises a first main control module, a coil-driving module, a first interface module, a first circuit protection module and a first wireless identification module; and wherein the coil-driving module, the first interface module, the first circuit protection module and the first wireless identification module are respectively connected to the first main control module;   a first induction coil module;   a second induction coil module; and   a power control module electrically connected to the second induction coil module; wherein the power control module comprises a second main control module, a power output module, a second interface module, a second circuit protecting module and a second wireless identification module, wherein the power output module, the second interface module, the second circuit protecting module and the second wireless identification module are electrically connected to the second main control module; wherein the power output module is electrically connected to a household appliance, wherein the first wireless identification module provides appropriate electric current to the first induction coil module via the first and second wireless identification module, the first induction coil module generates a magnetic force and the magnetic force passes through the second induction coil module to generate an inductive current, and the inductive current is input into the power control module; the second main control module drives the power output module to provide electric power to the household appliance equal to the power demand of the household appliance.   
 
         [0015]    Compared to prior art power supplies, the present invention has the following advantages. The first main control module provides appropriate electrical current to the first induction coil module via the first and second wireless identification module, the first induction coil module generates a magnetic force and the magnetic force passes through the second induction coil module to generate an inductive current and the inductive current is input into the power control module, the second main control module drives the power output module to provide electric power for the household appliance equal to the power demand of the household appliance. Thus, all household appliances can get power from the inductive power supply system of the present invention. This provides a common platform of power supply for all household appliance and overcomes the disadvantages of needing different power supplies for different household appliances. 
         [0016]    The following is a description of the present invention referring to the drawings and preferred embodiments, which description is not intended to be exhaustive or to limit the invention. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS  
         [0017]      FIG. 1  is a block diagram of the inductive power supply structure in embodiment 1 of the present invention. 
           [0018]      FIG. 2  is a block diagram of the inductive power supply structure in embodiment 2 of the present invention. 
           [0019]      FIG. 3  is a block diagram of the inductive power supply structure in embodiment 3 of the present invention. 
           [0020]      FIG. 4  is a block diagram of the inductive power supply structure in embodiment 4 of the present invention. 
           [0021]      FIG. 5  is a block diagram of the inductive power supply system in embodiment 4 of the present invention. 
           [0022]      FIG. 6  is a structure sketch map of the inductive power supply system of the present invention. 
       
    
    
     DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS 
     Embodiment 1 
       [0023]    Referring to  FIG. 1 , an inductive power supply structure of the present invention includes a battery module  1  for supplying electrical energy, a magnetic control module  2  for controlling the power supply of the battery module  1 , and an induction coil module  3 . 
         [0024]    The output of the battery module  1  is connected to the magnetic control module  2 ; the output of the magnetic control module  2  is connected to the induction coil module  3 ; the battery module  1  supplies electrical energy to the induction coil module  3  via controlling the magnetic control module  2 . 
         [0025]    The magnetic control module  2  includes a main control module  21 , a coil-driving module  22 , an interface module  23 , a circuit protection module  24  and a wireless identification module  25 . The coil-driving module  22 , the interface module  23 , the circuit protection module  24  and the wireless identification module  25  are all connected to the main control module  21  respectively. The input of the coil-driving module  22  is connected to the output of the battery module  1 . The output of the coil-driving module  22  is connected to the induction coil module  3 . The coil-driving module  22  supplies driving electrical current to the induction coil module  3 . 
         [0026]    The battery module  1  comprises a power supply unit  11  and a voltage transformation unit  12 . The input of the voltage transformation unit  12  is connected to an external alternate current (AC) or direct current (DC). The voltage transformation unit  12  is used to change the external alternate current into direct current and to reduce voltage or to adjust the voltage of direct current. The output of the voltage transformation unit  12  is connected to the input of the power supply unit  11 . The output of the power supply unit  11  is connected to the magnetic control module  2 . 
         [0027]    The interface module  23  comprises a monitor unit  231  and an operator unit  232 . The monitor unit  231  shows whether the magnetic control module  2  is supplying electrical current to the induction coil module  3 . Users can determine whether to supply electrical energy to the induction coil module  3  via the operator unit  232 . 
         [0028]    The circuit protection module  24  comprises an over-voltage protection unit  241 , an over-current protection unit  242  and an overheating protection unit  243 . The over-voltage protection unit  241 , the over-current protection unit  242  and the overheating protection unit  243  are used to protect the magnetic control module  2  from over-voltage, over-current or overheating respectively to prolong its service life. 
         [0029]    The wireless identification module  25  is used to send and receive wireless signal. The wireless signal that the wireless identification module  25  receives is transmitted to the main control module  21  for processing. 
       Embodiment 2 
       [0030]    The inductive power supply structure depicted in  FIG. 2  differs form that of Embodiment 1 in the following aspects. The magnetic control module  2  further comprises a coil-detecting module  26 . The induction coil module  3  comprises a main induction coil  31  and a vice induction coil  32 . The coil-detecting module  26  is connected to the main control module  21 . The main induction coil  31  is connected to the output of the coil-driving module  22 . The output of the vice induction coil  32  is connected to the coil-detecting module  26 . 
       Embodiment 3 
       [0031]    The inductive power supply structure depicted in  FIG. 3  differs form that of Embodiment 1 in the following aspects. The battery module  1  also comprises a power storage unit  13 . The magnetic control module  2  also comprises a power management module  27 . The input of the voltage transformation unit  12  is connected to the external alternate current or direct current. The output of the voltage transformation unit  12  is connected to the input of the power supply unit  11 . The output of the power supply unit  11  is connected to the magnetic control module  2 . The input of the power storage unit  13  is connected to the output of the voltage transformation unit  12 . The power storage unit  13  is connected to the power management module  27 . The power management module  27  is connected to the main control module  21 . The power storage unit  13  is used for storing electric energy. In the off-peak time of electricity use, electrical energy is stored in the power storage unit  13 , and in the peak time of use of electricity the electrical energy stored in the power storage unit  13  is supplied for household appliances via the power supply unit  11 , which can save power cost. 
       Embodiment 4 
       [0032]    The inductive power supply structure depicted in  FIG. 4  differs form that of Embodiment 1 in the following aspects. The battery module  1  also comprises a power storage unit  13 . The magnetic control module  2  also comprises a coil-detecting module  26  and a power management module  27 . The induction coil module  3  comprises a main induction coil  31  and a vice induction coil  32 . The coil-detecting module  26  is connected to the main control module  21 . The main induction coil  31  is connected to the output of the coil-driving module  22 . The output of the vice induction coil  32  is connected to the coil-detecting module  26 . The input of the voltage transformation unit  12  is connected to the external alternate current or direct current. The output of the voltage transformation unit  12  is connected to the input of the power supply unit  11 . The output of the power supply unit  11  is connected to the magnetic control module  2 . The input of the power storage unit  13  is connected to the output of the voltage transformation unit  12 . The power storage unit  13  is connected to the power management module  27 . The power management module  27  is connected to the main control module  21 . 
         [0033]    Referring to  FIGS. 5 and 6 , an inductive power supply system of the present invention comprises a battery module  4  for supplying electrical energy, a magnetic control module  5  for controlling the power supply of the battery module  4 , a first induction coil module  6 , a second induction coil module  7  that can generate electromagnetic induction with the first induction coil module  6 , and a power control module  8  that is used to supply electrical energy to household appliances  9 . 
         [0034]    The output of the battery module  4  is connected to the magnetic control module  5 . The output of the magnetic control module  5  is connected to the first induction coil module  6 . The battery module  4  supplies electrical energy to the first induction coil module  6  via controlling the magnetic control module  5 . The second induction coil module  7  is connected to household appliance  9  through the power control module  8  to supply electrical energy to the household appliance  9 . 
         [0035]    The magnetic control module  5  comprises a first main control module  51 , a coil-driving module  52 , a first interface module  53 , a first circuit protection module  54  and a first wireless identification module  55 . The coil-driving module  52 , the first interface module  53 , the first circuit protection module  54  and the first wireless identification module  55  are respectively connected to the first main control module  51 . The input of the coil-driving module  52  is connected to the output of the battery module  4 . The output of the coil-driving module  52  is connected to the first induction coil module  6 . The coil-driving module  52  supplies driving electrical current to the first induction coil module  6 . 
         [0036]    The power control module  8  comprises a second main control module  81 , a power output module  82 , a second interface module  83 , a second circuit protection module  84  and a second wireless identification module  85 . The power output module  82 , the second interface module  83 , the second circuit protection module  84  and the second wireless identification module  85  are respectively connected to the second main control module  81 . The output of the second induction coil module  7  is connected to the input of the power output module  82 . The output of the power output module  82  is connected to the household appliances  9 . 
         [0037]    The second wireless identification module  85  is wirelessly linked to the first wireless identification module  55 . The second wireless identification module  85  wirelessly transmits the information of the demand of electrical energy of household appliances  9  to the first wireless identification module  55 , and the first wireless identification module  55  transmits the information to the first main control module  51 . The first main control module  51  transmits a controlling signal to the coil-driving module  52  and drives the coil-driving module  52  to supply an appropriate electrical current to the first coil induction module  6 . The current induced by the second induction coil module  7  via the electromagnetic induction between the second induction coil module  7  and the first induction coil module  6  transmits to the power control module  8 . The electrical power that the second main control module  81  of the power control module  8  drives the power output module  82  to transmit to household appliances  9  is equal to the demand of electrical energy of household appliances  9 . 
         [0038]    The battery module  4  comprises a power supply unit  41  and a voltage transformation unit  42 . The input of the voltage transformation unit  42  is connected to the external alternate current or direct current. The voltage transformation unit  42  is used to change the external alternate current to direct current and to reduce voltage or to adjust the voltage of direct current. The output of the voltage transformation unit  42  is connected to the input of the power supply unit  41 . The output of the power supply unit  41  is connected to the magnetic control module  5 . 
         [0039]    The first interface module  53  comprises a first monitor unit  531  and a first operator unit  532 . The first monitor unit  531  shows whether the magnetic control module  5  is supplying electrical current to the first induction coil module  6 . Users can determine whether to supply electrical energy to the first induction coil module  6  via the first operator unit  532 . 
         [0040]    The first circuit protection module  54  comprises a first over-voltage protection unit  541 , a first over-current protection unit  542  and a first overheat protection unit  543 . The first over-voltage protection unit  541 , the first over-current protection unit  542  and the first overheat protection unit  543  are used to protect the magnetic control module  5  out of over-voltage, over-current or overheat respectively to prolong its service life. 
         [0041]    The second interface module  83  comprises a power monitor unit  831 , a second monitor unit  832  and a second operator unit  833 . The power monitor unit  831  shows consumed electrical energy of the household appliances  9  in working. The second monitor unit  832  shows whether the power control module  8  is supplying electrical energy to household appliances  9 . Users can determine whether to supply electrical energy to household appliances  9  by the second operator unit  833 . 
         [0042]    The second circuit protection module  84  comprises a second over-voltage protection unit  841 , a second over-current protection unit  842  and a second overheat protection unit  843 . The second over-voltage protection unit  841 , the second over-current protection unit  842  and the second overheat protection unit  843  protect the power control module  8  out of over-voltage, over-current or overheat respectively to prolong its service life. 
         [0043]    When in use, the battery module  4  supplies electrical energy to the magnetic control module  5 . The first wireless identification module  55  matches with the second wireless identification module  85  to form an information wireless transmitting path. The first main control module  51  obtains the information about the amount of power needed by the household appliance  9  via the information wireless transmitting path. Then the first main control module  51  drives the coil-driving module  52  to supply an appropriate electrical current to the first coil induction module  6 . The first coil induction module  6  produces a magnetic field, which gets across the second induction coil module  7  to generate an induced current. The induced current of the second induction coil module  7  is inputted to the power control module  8 . The second main control module  81  of the power control module  8  drives the power output module  82  to supply the electrical energy to household appliance  9 . The electrical energy that the power output module  82  supplies is equal to the demand of electrical energy of household appliances  9 . 
         [0044]    The first wireless identification module  55  matches with the second wireless identification module  85  to ensure that the first main control module  51  obtain the information of the electrical energy demand of household appliance  9 , and that the electrical energy supplied by the power output module  82  is equal to the electrical energy consumed by household appliance  9 . This way, any one of the household appliances  9  can get electrical energy from the inductive power supply structure of the present invention, instead of that each household appliance  9  has its own power supply structure. 
         [0045]    The battery module  4  comprises a power storage unit, and the magnetic control module  5  comprises a power management module. In controlling the main control module, in the off-peak time of electricity use, the electrical energy is stored in the power storage unit, and in the peak time of use of electricity the electrical energy stored in the power storage unit is supplied to household appliances  9 , which can save power cost. 
         [0046]    The foregoing description of the exemplary embodiment of the invention has been presented for the purposes of illustration and description. It is not intended to be exhaustive or to limit the invention to the precise form disclosed. Many modifications and variations are possible in light of the above teaching. All changes that come within the meaning and range of equivalency of the claims are to be embraced within their scope.