Recharging device and recharging system using same

• US 8,067,921 B2
• Filed: 04/27/2009
• Issued: 11/29/2011
• Est. Priority Date: 02/20/2009
• Status: Expired due to Fees

• Current Assignee: Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. (Hon Hai Precision Industry Co., Ltd.), Hon Hai Precision Industry Co., Ltd.
• Original Assignee: Hon Hai Precision Industry Co., Ltd.
• Inventors: Sip, Kim-Yeung, Yang, Song-Ling
• Primary Examiner(s): Phan; Huy Q
• Assistant Examiner(s): Allgood; Alesa
• Application Number:
  US12/430,851
• Publication Number:
  US 20100213894A1
• Time in Patent Office: 946 Days
• Field of Search: 320/108, 320/109
• US Class Current: 320/108
• CPC Class Codes: B60L 53/38 specially adapted for charging by inductive energy transfer
• CPC Class Codes: H01M 10/46 Accumulators structurally combined with charging apparatus circuits for charging H02J7/00
• CPC Class Codes: H02J 2310/22 The load being a portable electronic device
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/90 involving detection or optimisation of position, e.g. alignment
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 90/12 Electric charging stations
• CPC Class Codes: Y02T 90/14 Plug-in electric vehicles

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.

Claims

1. A recharging system, comprising:

an electronic device comprising;

a first electromagnetic induction device; and

a rechargeable battery;

a recharging device comprising;

a casing comprising a loading plate and four side walls, the side walls vertically disposed on the fringe of the loading plate, the loading plate being configured for loading the electronic device;

a detection layer configured for detecting the position of the electronic device according to electromagnetic wave generated by the first electromagnetic induction device, the detection layer comprising a first layer and a second layer, the first layer and the second layer being a grid of wires and running perpendicular to each other, when the electronic device being loaded on the loading plate, the electromagnetic wave generated by the first electromagnetic induction device inducing a current to flow within the first layer and a current to flow in the second layer;

a second microprocessor configured for computing the position of the first electromagnetic induction device based on the current flowing through the wires;

a second electromagnetic induction device; and

a driving device comprising a first motor and a second motor, the first motor and the second motor slidably latched in the side walls, and being controlled by the second microprocessor to drive the second electromagnetic induction device to align with the first electromagnetic induction device according to the position of the first electromagnetic induction device.

2. The recharging system as claimed in claim 1, wherein the electronic device further comprises a first current process module configured for converting a direct current generated by the rechargeable battery into an alternating current and converting alternating current generated by the first electromagnetic induction device into direct current.

3. The recharging system as claimed in claim 2, wherein the electronic device further comprises a first microprocessor configured for controlling the first current process module to change operation modes between an operation mode of converting a direct current generated by the rechargeable battery into an alternating current and converting alternating current generated by the first electromagnetic induction device into direct current.

4. The recharging system as claimed in claim 1, wherein the recharging device further comprises a second current process module configured for modulating the current of a power source and the current of the second electromagnetic induction device.

5. The recharging system as claimed in claim 1, wherein the side walls comprises an inner surface defining a pair of first guide grooves and a pair of second guide grooves;

the first motor comprises a first controller and a first shaft, the second motor comprises a second controller and a second shaft;

the first shaft is slidably latched in the second guide grooves, and the second shaft is slidably latched in the first guide grooves.

6. A recharging device, comprising:

a casing comprising a loading plate and four side walls, the side walls vertically disposed on the fringe of the loading plate, the loading plate being configured for loading an electronic device;

a detection layer configured for detecting the position of the electronic device using electromagnetic wave generated by the electronic device, the detection layer comprising a first layer and a second layer, the first layer and the second layer being a grid of wires and running perpendicular to each other, when the electronic device being loaded on the loading plate, the electromagnetic wave generated by a first electromagnetic induction device of the electronic device inducing a current to flow within the first layer and a current to flow in the second layer;

a second microprocessor configured for computing the position of the first electromagnetic induction device of the electronic device based on the current flowing through the wires;

a second electromagnetic induction device; and

a driving device comprising a first motor and a second motor, the first motor and the second motor slidably latched in the side walls, and being controlled by the second microprocessor to drive the second electromagnetic induction to align with the first electromagnetic induction device according to the position of the first electromagnetic induction device.

7. The recharging device as claimed in claim 6, wherein the recharging device further comprises a second current process module configured for modulating the current of a power source and the current of the second electromagnetic induction device.

8. The recharging device as claimed in claim 6, wherein the side walls comprise an inner surface defining a pair of first guide grooves and a pair of second guide grooves;

the first motor comprises a first controller and a first shaft, the second motor comprises a second controller and a second shaft;

the first shaft is slidably latched in the second guide grooves, and the second shaft is slidably latched in the first guide grooves.