Wireless charging device and wearable device

• US 10,084,335 B2
• Filed: 01/14/2016
• Issued: 09/25/2018
• Est. Priority Date: 12/28/2015
• Status: Active Grant

• Current Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd. (TCL Technology Group Corp.)
• Original Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd. (TCL Technology Group Corp.)
• Inventors: Xing, Zhenzhou, Huang, Chun-hung
• Primary Examiner(s): Kik, Phallaka
• Application Number:
  US14/916,998
• Publication Number:
  US 20180048176A1
• Time in Patent Office: 985 Days
• Field of Search: 320108, 320112, 320114, 320138
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 7/00 Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• CPC Class Codes: H02J 7/00034 Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer

Abstract

The present invention discloses a wireless charging device, comprising a power generation module, a power storage module, a wireless charging emitting module and a wireless charging receiving module, and the power generation module can generate current in a motion state, and the power storage module comprises an electrical energy transmission unit and an automatic power storage unit electrically coupled to the electrical energy transmission unit, and the automatic power storage unit is employed to store the current generated by the power generation module, and the electrical energy transmission unit is employed to provide electrical energy to the wireless charging emitting module, and the wireless charging emitting module transmits the electrical energy to the wireless charging receiving module. The wireless charging device can charge the apparatus to be charged anytime and extend the battery life of the apparatus to be charged.

Claims

1. A wireless charging device, wherein the wireless charging device comprises a power generation module, a power storage module, a wireless charging emitting module and a wireless charging receiving module, and the power generation module can generate current in a motion state, and the power storage module comprises an electrical energy transmission unit and an automatic power storage unit electrically coupled to the electrical energy transmission unit, and the automatic power storage unit is employed to store the current generated by the power generation module, and the electrical energy transmission unit is employed to provide electrical energy to the wireless charging emitting module, and the wireless charging emitting module transmits the electrical energy to the wireless charging receiving module;

wherein the power generation module comprises a magnetic field generation unit and a cutting unit, and in a process of a motion of the wireless charging device, the cutting unit cuts the magnetic induction line generated by the magnetic field generation unit to generate the current, and the current is imported to the automatic power storage unit; and

wherein the magnetic field generation unit comprises a first electrode plate, a second electrode plate which are oppositely located and the magnetic induction lines between the first electrode plate and the second electrode plate, and the cutting unit is located on the first electrode plate or between the first electrode plate and the second electrode plate, and the cutting unit comprises at least one cutting guide plate, and an inner fixing part and an outer fixing part which are electrically coupled to the cutting guide plate, and the cutting guide plate comprises a fixed end and a free end, and the fixed end is rotatably fixed at the inner fixing part, and the free end rotatably contacts with the outer fixing part, and the cutting guide plate can rotate around the inner fixing part, and the automatic power storage unit comprises a first electrode and a second electrode, and the inner fixing part is electrically coupled to the first electrode, and the outer fixing part is electrically coupled to the second electrode.

2. The wireless charging device according to claim 1, wherein the cutting unit is a metal line electrically coupled to the automatic power storage unit.

3. The wireless charging device according to claim 1, wherein the fixed end of the cutting guide plate appears to be a circular ring, and the inner fixing part appears to be a cylinder, and the fixed end is sleeved with the inner fixing part.

4. The wireless charging device according to claim 3, wherein the wireless charging receiving module further comprises a voltage stabilizing circuit, and the voltage stabilizing circuit is employed to stabilize a direct current transmitted to the apparatus to be charged.

5. The wireless charging device according to claim 1, wherein the power generation module comprises many of the cutting units, and all the inner fixing parts of the cutting units are electrically coupled to the first electrode, and all the outer fixing parts are electrically coupled to the second electrode.

6. The wireless charging device according to claim 5, wherein the wireless charging receiving module further comprises a voltage stabilizing circuit, and the voltage stabilizing circuit is employed to stabilize a direct current transmitted to the apparatus to be charged.

7. The wireless charging device according to claim 1, wherein a cutting plane of the cutting guide plate and the magnetic induction line forms an included angle which is larger than 0°

and smaller or equal to 90°

.

8. The wireless charging device according to claim 7, wherein the wireless charging emitting module comprises an oscillating circuit, an amplifying circuit and a step up circuit coupled to the oscillating circuit, and an emitting electrode coupled to the step up circuit, and the wireless charging receiving module comprises a receiving electrode, and a step down circuit coupled to the receiving electrode and a rectification circuit coupled to the step down circuit, and the electrical energy transmission unit inputs a direct current into the wireless charging emitting module, and the direct current is converted into an alternating current by the oscillating circuit, and the alternating current is converted into a high voltage alternating current by the amplifying circuit and the step up circuit, and the high voltage alternating current makes the emitting electrode generate a high voltage electrical field, and the receiving electrode senses the high voltage electrical field and converts the high voltage electrical field into a high voltage alternating current, and after the high voltage alternating current flows through the step down circuit and the rectification circuit, a direct current used for the apparatus to be charged is obtained.

9. The wireless charging device according to claim 8, wherein the wireless charging receiving module further comprises a voltage stabilizing circuit, and the voltage stabilizing circuit is employed to stabilize a direct current transmitted to the apparatus to be charged.

10. The wireless charging device according to claim 7, wherein the wireless charging receiving module further comprises a voltage stabilizing circuit, and the voltage stabilizing circuit is employed to stabilize a direct current transmitted to the apparatus to be charged.

11. A wearable device, wherein the wearable device comprises a wireless charging device, and the wireless charging device comprises a power generation module, a power storage module, a wireless charging emitting module and a wireless charging receiving module, and the power generation module can generate current in a motion state, and the power storage module comprises an electrical energy transmission unit and an automatic power storage unit electrically coupled to the electrical energy transmission unit, and the automatic power storage unit is employed to store the current generated by the power generation module, and the electrical energy transmission unit is employed to provide electrical energy to the wireless charging emitting module, and the wireless charging emitting module transmits the electrical energy to the wireless charging receiving module;

wherein the power generation module comprises a magnetic field generation unit and a cutting unit, and in a process of a motion of the wireless charging device, the cutting unit cuts the magnetic induction line generated by the magnetic field generation unit to generate the current, and the current is imported to the automatic power storage unit; and

wherein the magnetic field generation unit comprises a first electrode plate, a second electrode plate which are oppositely located and the magnetic induction lines between the first electrode plate and the second electrode plate, and the cutting unit is located on the first electrode plate or between the first electrode plate and the second electrode plate, and the cutting unit comprises at least one cutting guide plate, and an inner fixing part and an outer fixing part which are electrically coupled to the cutting guide plate, and the cutting guide plate comprises a fixed end and a free end, and the fixed end is rotatably fixed at the inner fixing part, and the free end rotatably contacts with the outer fixing part, and the cutting guide plate can rotate around the inner fixing part, and the automatic power storage unit comprises a first electrode and a second electrode, and the inner fixing part is electrically coupled to the first electrode, and the outer fixing part is electrically coupled to the second electrode.

12. The wearable device according to claim 11, wherein the cutting unit is a metal line electrically coupled to the automatic power storage unit.

13. The wearable device according to claim 11, wherein the fixed end of the cutting guide plate appears to be a circular ring, and the inner fixing part appears to be a cylinder, and the fixed end is sleeved with the inner fixing part.

14. The wearable device according to claim 11, wherein the power generation module comprises many of the cutting units, and all the inner fixing parts of the cutting units are electrically coupled to the first electrode, and all the outer fixing parts are electrically coupled to the second electrode.

15. The wearable device according to claim 11, wherein a cutting plane of the cutting guide plate and the magnetic induction line forms an included angle which is larger than 0°

and smaller or equal to 90°

.

16. The wearable device according to claim 15, wherein the wireless charging emitting module comprises an oscillating circuit, an amplifying circuit and a step up circuit coupled to the oscillating circuit, and an emitting electrode coupled to the step up circuit, and the wireless charging receiving module comprises a receiving electrode, and a step down circuit coupled to the receiving electrode and a rectification circuit coupled to the step down circuit, and the electrical energy transmission unit inputs a direct current into the wireless charging emitting module, and the direct current is converted into an alternating current by the oscillating circuit, and the alternating current is converted into a high voltage alternating current by the amplifying circuit and the step up circuit, and the high voltage alternating current makes the emitting electrode generate a high voltage electrical field, and the receiving electrode senses the high voltage electrical field and converts the high voltage electrical field into a high voltage alternating current, and after the high voltage alternating current flows through the step down circuit and the rectification circuit, a direct current used for the apparatus to be charged is obtained.