Abstract:
A recharging system for wireless charging comprising an electronic device and a recharging device. The electronic device comprises a first electromagnetic induction device and a rechargeable battery. The recharging device comprises a detection layer, a second electromagnetic induction device, and a driving device. The detection layer is configured for detecting the position of the electronic device. The driving device drives the second electromagnetic induction device to align with the first electromagnetic induction device. The second electromagnetic induction device is configured for inducing a current in the first electromagnetic induction device.

Description:
BACKGROUND 
       [0001]    1. Technical Field 
         [0002]    The present disclosure relates to recharging devices, and particularly, to an electromagnetic induction recharging device and recharging system using the same. 
         [0003]    2. Description of Related Art 
         [0004]    A portable electronic device, such as a cellular phone or a notebook is typically powered by a rechargeable battery. The connector for recharging the rechargeable battery is usually on the housing of the portable electronic device so that the contact terminal, of the connector, can be electrically connected to a charging terminal of a recharging device. However, the contact terminal may be easily contaminated by impurities and also easily worn away due to frictions between the contact terminal and charging terminals. 
         [0005]    What is needed, therefore, is a recharging device and recharging system using the same which can overcome the above-described problems. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0006]      FIG. 1  is a partially sectioned, schematic view of a recharging system according to the present disclosure. 
           [0007]      FIG. 2  is a function block diagram of a recharging system included a detection layer. 
           [0008]      FIG. 3  is a schematic view of the detection layer of a recharging system. 
       
    
    
     DETAILED DESCRIPTION 
       [0009]    Embodiments of the present disclosure will now be described in detail below, with reference to the accompanying drawings. 
         [0010]    Referring to  FIGS. 1-2 , a recharging system according to an exemplary embodiment, includes an electronic device  10  and a recharging device  20 . The recharging device  20  is used for recharging the electronic device  10 . The electronic device  10  can be a mobile phone, a computer, or a digital camera etc. In the present embodiment, the electronic device  10  is a mobile phone. 
         [0011]    The electronic device  10  includes a shell  11 , a first electromagnetic induction device  12 , a first current process module  13 , a rechargeable battery  14 , and a first microprocessor  15 . The shell  11  is configured for housing the first electromagnetic induction device  12 , the first current process module  13 , the rechargeable battery  14 , and the first microprocessor  15 . The first current process module  13  electrically connects the first electromagnetic induction device  12  and the rechargeable battery  14 . The first microprocessor  15  electrically connects with the first current process module  13 . 
         [0012]    The first electromagnetic induction device  12  is disposed on the shell  11 , and includes a first base  121 , a first coil  122 , and a first core  123 . The first base  121  is made of electrical insulating material, such as plastic, wood, ceramic, and so on. The first coil  122  and the first core  123  are secured on the first base  121 . The first core  123  is disposed inside the first coil  122  for improving electromagnetic induction efficiency of the first electromagnetic induction device  12 . 
         [0013]    The first current process module  13  is configured for converting alternating current generated by the first electromagnetic induction device  12  into direct current, or converting residual current of the rechargeable battery  14  into alternating current. 
         [0014]    The first microprocessor  15  is configured for controlling the first current process module  13  to change the operation mode, i.e., converting alternating current into direct current or converting direct current into alternating current. 
         [0015]    The recharging device  20  includes a casing  21 , a second electromagnetic induction device  22 , a driving device  23 , a detection layer  24 , a second current process module  25 , and a second microprocessor  26 . The second current process module  25  electrically connects with the second electromagnetic induction device  22 , the second microprocessor  26 , and a power source. The second microprocessor  26  electrically connects with the driving device  23  and the detection layer  24 . 
         [0016]    The casing  21  is configured for housing the second electromagnetic induction device  22 , the driving device  23 , the detection layer  24 , the second current process module  25 , and the second microprocessor  26 . The casing  21  includes a loading plate  211  and four sidewalls  212 . The sidewalls  212  perpendicularly extend downwards from the edge of the loading plate  211 . 
         [0017]    The sidewalls  212  includes an inner surface  213  defining a pair of first guide grooves  214  and a pair of second guide grooves  215 . The first guide grooves  214  extend along the direction A of  FIG. 1 . The second guides grooves  215  extend along the direction B of  FIG. 1 . The sidewalls  212  further includes an electric socket  216 , the electric socket  216  is configured for electrically connecting to the power source. 
         [0018]    The second electromagnetic induction device  22  is disposed on the driving device  23 , and includes a second base  221 , a second coil  222 , and a second core  223 . The second base  221  is made of electrical insulating material, such as plastic, wood, ceramic, and so on. The second coil  222  and the second core  223  are secured on the second base  221 . The second core  223  is disposed inside the second coil  222  for improving electromagnetic induction efficiency of the second electromagnetic induction device  22 . 
         [0019]    The driving device  23  includes a first motor  231  and a second motor  232 . The first motor  231  includes a first controller  231   a  and a first shaft  231   b.  The first shaft  231   b  is rotatably disposed in the first controller  231   a,  and the first controller  231   a  can move along the first shaft  231   b.  The second motor  232  includes a second controller  232   a  and a second shaft  232   b.  The second shaft  232   b  is rotatably disposed in the second controller  232   a,  and the second controller  232   a  can move along the second shaft  232   b.  The first controller  231   a  is fixed on the second controller  232   a.  Two ends of the first shaft  231   b  are slidably latched in the second guide grooves  215 . Two ends of the second shaft  232   b  are slidably latched in the first guide grooves  214 . 
         [0020]    Referring to  FIG. 1  and  FIG. 3 , the detection layer  24  is configured for detecting the position of the electronic device  10 . The detection layer  24  is disposed on the loading plate  211 . The detection layer  24  is a grid of wires including a first layer  241  of wires and a second layer  242  of wires running perpendicular to each other. The first layer  241  is insulated from the second layer  242 . The wires of the first layer  241  are arranged in the direction A and the wires of the second layer  242  are arranged in the direction B. The wires are grounded at one end, another end of the wires is coupled to the second microprocessor  26 . 
         [0021]    The second current process module  25  is configured for modulating the current of the power source and the detected current of the second electromagnetic induction device  22 . 
         [0022]    The second microprocessor  26  is configured for controlling the driving device  23  to move. 
         [0023]    Referring to  FIGS. 1-2 , initially, the second electromagnetic induction device  22  of the recharging device  20  is located at the middle of the casing  21 . To recharge the rechargeable battery  14  of the electronic device  10 , the electronic device  10  is changed to the recharging mode, and placed on the loading plate  211  by the user. In the recharging mode, the remanent voltage of the battery produces a residual direct current. The first microprocessor  15  controls the first current process module  13  to convert the residual direct current of the rechargeable battery  14  into alternating current. The alternating current is inputted to the first electromagnetic induction device  12  thereby inducing a current to flow in the first layer  241  and a current to flow in the second layer  242  of the detection layer  24 . The second microprocessor  26  computes the position of the first electromagnetic induction device  12  based on the current flowing through the wires, along the directions A and B. The second microprocessor  26  then moves the first motor  231  along the direction A, and the second motor  232  along the direction B. When the first controller  231   a  of the first motor  231  moves along the first shaft  231   b,  the second shaft  232   b  of the second motor  232  slides along the first guide grooves  214 . When the second controller  232   a  of the second motor  232  moves along the second shaft  232   b,  the first shaft  231   b  of the first motor  231  slides along the second guide grooves  215 . 
         [0024]    When the first electromagnetic induction device  12  is aligned with the second electromagnetic induction device  22 , the first current process module  13  turn off the residual current of the rechargeable battery  14 . An alternating current is applied to the second electromagnetic induction device  22  and this induces an alternating current in the first electromagnetic induction device  12 . The first electromagnetic induction device  12  outputs the induced alternating current to the first current process module  13 . The first microprocessor  15  controls the first current process module  13  to convert the induced alternating current to direct current. The direct current flows to the rechargeable battery  14  thereby recharging the rechargeable battery  14 . 
         [0025]    It is believed that the present embodiments and their advantages will be understood from the foregoing description, and it will be apparent that various changes may be made thereto without departing from the spirit and scope of the invention or sacrificing all of its material advantages, the examples hereinbefore described merely being preferred or exemplary embodiments of the invention.