Protective cover and protective cover set with wireless charging function

Patent metadata

Field	Value
Publication number	US-9531206-B2
Application number	US-201414493979-A
Country	US
Kind code	B2
Filing date	Sep 23, 2014
Priority date	Sep 24, 2013
Publication date	Dec 27, 2016
Grant date	Dec 27, 2016

Abstract

A protective cover cooperating with a wireless charging dock is provided. The protective cover includes a first cover and a second cover. An electronic device is disposed at the first cover and electrically connected thereto. The second cover is connected to the first cover and thus the second cover can cover the first cover. The second cover includes at least one folding line and at least one charging module, and the charging module receives the inducting power from the wireless charging dock. The second cover can be folded along the folding line to form a folding state. The charging module includes a state sensing module, a power compensating module and a control module. The charging module can adjust a power compensating value and transmit the power compensating value to the wireless charging dock.

First claim

What is claimed is:

1. A protective cover with a wireless charging function, cooperating with a wireless charging dock, the protective cover comprising:
a first cover, electrically connected to a portable electronic device, wherein the electronic device is disposed at the first cover; and
a second cover, connected to the first cover and covering the first cover, wherein the second cover includes at least one folding line and a charging module, the second cover is folded along different folding lines to form a plurality of folding states, each folding state corresponds to a power compensating value, the charging module receives an adjusted inducting power from the wireless charging dock according to the folding state of the second cover, and the charging module includes:
a state sensing module, generating a state sensing signal according to the folding state of the second cover;
a power compensating module, electrically connecting to the state sensing module and generating a power compensating signal according to the state sensing signal; and
a control module electrically connected to the power compensating module, the control module adjusting a power compensating value according to the power compensating signal and transmitting the power compensating value to the wireless charging dock.

2. The protective cover according to claim 1 , wherein the state sensing module includes at least a sensing element.

3. The protective cover according to claim 2 , wherein the first cover further includes at least an auxiliary sensing element, the auxiliary sensing element is disposed corresponding to the sensing element.

4. The protective cover according to claim 1 , wherein when a power loss is larger than a predetermined value, the control module generates a stop signal to stop charging by the charging module.

5. The protective cover according to claim 1 , wherein the charging module further includes at least one charging coil, a rectifier and a voltage adjusting circuit.

6. The protective cover according to claim 1 , wherein the control module is a micro-processor or a micro-chip.

7. The protective cover according to claim 1 , wherein the protective cover further includes a transmission line, the transmission line is disposed at the second cover and electrically connected to the charging module to provide the inducting power to the electronic device.

8. The protective cover according to claim 1 , wherein the second cover further includes an attaching element is disposed between the charging module and the electronic device.

9. A protective cover set with a wireless charging function, comprising:
a wireless charging dock; and
a protective cover, wherein the protective cover includes a first cover and a second cover, a portable electronic device is disposed at the first cover and electrically connected thereto, the second cover is connected to the first cover to cover the first cover, the second cover includes at least one folding line and a charging module, the second cover is folded along different folding lines to form a plurality of folding states, each folding state corresponds to a power compensating value, the charging module receives an adjusted inducting power from the wireless charging dock according to the folding state of the second cover, and the charging module includes:
a state sensing module generating a state sensing signal according to the folding state of the second cover;
a power compensating module electrically connected to the state sensing module, and the power compensating module generating a power compensating signal according to the state sensing signal; and
a control module electrically connected to the power compensating module, the control module adjusting a power compensating value according to the power compensating signal and transmitting the power compensating value to the wireless charging dock.

Assignees

• Asustek Comp Inc

Inventors

• Tsai Ming-Ting
• Tu Wei-Chen
• Hung Hsiang-Jue

Classifications

• G06F1/1632

  External expansion units, e.g. docking stations · CPC title

• G06F1/1635

  Details related to the integration of battery packs and other power supplies such as fuel cells or integrated AC adapter · CPC title

• H02J50/10

  using inductive coupling · CPC title

• G06F1/26

  Power supply means, e.g. regulation thereof (for memories G11C) · CPC title

• H02J50/60

  responsive to the presence of foreign objects, e.g. detection of living beings · CPC title