Wireless charging device

• US 9,935,486 B2
• Filed: 10/01/2015
• Issued: 04/03/2018
• Est. Priority Date: 07/06/2015
• Status: Active Grant

• Current Assignee: Wistron Corporation
• Original Assignee: Wistron Corporation
• Inventors: Huang, Chia-Feng, Chu, Yung-Ching
• Primary Examiner(s): Dunn, Drew A
• Assistant Examiner(s): DiBenedetto, Michael
• Application Number:
  US14/872,169
• Publication Number:
  US 20170012457A1
• Time in Patent Office: 915 Days
• Field of Search: 320107, 320108, 320114, 320115, 307104
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 7/0044 specially adapted for holding portable devices containing batteries H02J7/0045 takes precedence
• CPC Class Codes: H02J 7/04 Regulation of charging current or voltage

Abstract

A wireless charging device capable of charging an electronic device is provided. The wireless charging device includes a supporting component, a stage and at least one electrical transmitter. The stage is used to carry the electronic device and is swingingly disposed on the platform through the supporting component. The electrical transmitter is movably disposed in the stage. When the electronic device is placed on an end of the stage which is relatively away from the supporting component, the stage swings in relative to the platform by using the supporting component as a fulcrum, and the stage is inclined to the platform. As a result, the electrical transmitter moves toward the electronic device due to gravitational pull, and thereby aligns with an electrical receiver in the electronic device so as to wirelessly charge the electronic device.

Claims

1. A wireless charging device capable of charging at least one electronic device, the wireless charging device comprising:

a supporting component;

a stage, configured to carry the electronic device and swingingly disposed on a platform through the supporting component; and

at least one electrical transmitter, movably disposed in the stage, wherein when the at least one electronic device is placed on an end of the stage which is relatively away from the supporting component, the stage swings in relative to the platform by using the supporting component as a fulcrum and is inclined to the platform, so the at least one electrical transmitter moves toward the at least one electronic device due to gravitational pull, and thereby automatically aligns with an electrical receiver in the at least one electronic device so as to wirelessly charge the at least one electronic device.

2. The wireless charging device as recited in claim 1, wherein the stage has a main body portion, a carrying portion and a sidewall portion, the main body portion is connected to the supporting component, the carrying portion is configured to carry the electronic device, the sidewall portion surrounds about the main body portion and is connected between the main body portion and the carrying portion, so as to define an accommodating space with the main body portion and the carrying portion, and the at least one electrical transmitter is movably disposed in the accommodating space.

3. The wireless charging device as recited in claim 2, wherein the stage further has at least one extending portion, the at least one extending portion protrudes out of the main body portion and is located in the accommodating space, so as to define at least one guide groove with the sidewall portion, and the at least one electrical transmitter is movably disposed in the at least one guide groove.

4. The wireless charging device as recited in claim 3, wherein when the number of the at least one guide groove is a plurality, the number of the at least one electrical transmitter is corresponded to the number of the guide grooves, and the electrical transmitters are movably disposed in the guide grooves, respectively.

5. The wireless charging device as recited in claim 4, wherein after each of the electrical transmitters moves toward the at least one electronic device along the corresponding guide groove due to the gravitational pull, one of the electrical transmitters is aligned with the electrical receiver in the at least one electronic device.

6. The wireless charging device as recited in claim 3, wherein when the number of the at least one electrical transmitter is a plurality, the electrical transmitters are movably disposed in the at least one guide groove.

7. The wireless charging device as recited in claim 6, wherein after each of the electrical transmitters moves toward the at least one electronic device along the at least one guide groove due to the gravitational pull, one of the electrical transmitters is aligned to the electrical receiver in the at least one electronic device.

8. The wireless charging device as recited in claim 3, wherein the sidewall portion and the at least one extending portion maintains a space therebetween.

9. The wireless charging device as recited in claim 3, wherein the sidewall portion and the at least one extending portion are connected with each other.

10. The wireless charging device as recited in claim 2, wherein the sidewall portion has a positive electrode region and a negative electrode region, the at least one electrical transmitter has a positive electrode portion and a negative electrode portion, after the at least one electrical transmitter moves towards the at least one electronic device due to the gravitational pull, the positive electrode portion is electrically coupled to the positive electrode region, and the negative electrode portion is electrically coupled to the negative electrode region.

11. The wireless charging device as recited in claim 1, wherein the supporting component is connected on a centroid position of the stage.

12. The wireless charging device as recited in claim 1, wherein the supporting component comprises a ball-type shaft, a universal joint or a spring.

13. The wireless charging device as recited in claim 1, wherein the supporting component comprises at least one carrying base and an axle shaft pivoted on the at least one carrying base, and the axle shaft penetrates through the stage.

14. The wireless charging device as recited in claim 1, wherein the supporting component has a curvy surface portion and is abutted against the platform with the curvy surface portion.