ACCESSORY DEVICE FOR WIRELESS CHARGING AND ELECTRONIC DEVICE HAVING THE SAME

• US 20170047764A1
• Filed: 07/05/2016
• Published: 02/16/2017
• Est. Priority Date: 08/12/2015
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: LEE, Uijin, KIM, Geunbeom, SEO, Myunggi, LIM, Jungtaek, HAWNG, Chihun, KIM, Joonil, LIM, Kyung-Woo, SEO, Youngmi, LEE, Seungju, JANG, Byeonghyun, LEE, Sangwon, CHOI, Jong-Chul
• Granted Patent: US 10,468,901 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H02J 50/00 Circuit arrangements or systems for wireless supply or distribution of electric power
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction
• CPC Class Codes: H04B 1/3888 Arrangements for carrying or protecting transceivers
• CPC Class Codes: H04M 1/185 Improving the rigidity of the casing or resistance to shocks
• CPC Class Codes: H04M 1/72412 using two-way short-range wireless interfaces

Abstract

An apparatus and a method for wirelessly charging are disclosed. An accessory device is detachably mounted on an electronic device. The accessory device includes a housing including a first face configured to oppose a face of the electronic device when the housing is mounted on the electronic device, a second face opposite to the first face, and a third face extending in a first direction from the first face so as to enclose at least a portion of a side face. The accessory device further includes a battery and at least one conductive pattern electrically connected to the battery. The accessory device can transmit power to the electronic device in a wireless manner and/or receive power from an external device in a wireless manner. Areas of the first face and the third face of the housing of the accessory device are formed of a non-conductive material.

Claims

1. An accessory device for being detachably mounted on an electronic device, the electronic device comprising a housing, the housing of the electronic device comprising a first face facing in a first direction, a second face facing a second direction that is opposite to the first direction, and a side face that at least partially encloses a space between the first face and the second face, the accessory device comprising:

a housing comprising;

a first face configured to face the second face of the electronic device when the housing is mounted on the electronic device,

a second face directed opposite to the first face, and

a third face extending in the first direction from the first face so as to enclose at least a portion of the side face;

a battery positioned between the first face and the second face of the housing of the accessory device; and

at least one conductive pattern electrically connected to the battery, and configured for at least one of;

transmitting power to the electronic device in a wireless manner, and

receiving power from an external device in a wireless manner,

wherein, a substantially entire area of the first face and a substantially entire area of the third face of the housing of the accessory device comprises a non-conductive material.

2. The accessory device of claim 1, wherein no exposed conductive material exists on:

the substantially entire area of the first face and

the substantially entire area of the third face of the housing of the accessory device.

3. The accessory device of claim 1, wherein the conductive pattern is positioned between the battery and the first face of the housing of the accessory device.

4. The accessory device of claim 3,

wherein the electronic device comprises a circuit electrically connected to the battery and the at least one conductive pattern, and

wherein the circuit is configured to:

apply a current output from the battery to the at least one conductive pattern, and

transmit power to the electronic device based on the current applied to the at least one conductive pattern.

5. The accessory device of claim 4, wherein the circuit is further configured to:

generate information based on a charged degree of the battery, and

transmit the information outwardly through the conductive pattern.

6. The accessory device of claim 5, wherein the circuit is further configured to:

transmit power to the electronic device with a first frequency, and

transmit the generated information outwardly by changing the first frequency to a second frequency.

7. The accessory device of claim 6,

wherein the first frequency and the second frequency are included in substantially equal frequency bands, and

wherein the circuit is further configured to transmit the power and the information to the electronic device simultaneously by using the frequency bands.

8. The accessory device of claim 1, wherein the third face of the housing of the accessory device comprises one or more protrusions formed in the second direction.

9. The accessory device of claim 8, wherein the one or more protrusions comprise:

a first protrusion protruding by a first height from the third face, and

a second protrusion protruding from the third face by a second height that is higher than the first height.

10. The accessory device of claim 9,

wherein the first protrusion protrudes from a portion of the third face of the housing of the accessory device in a third direction that is directed to a portion of the side face of the housing of the electronic device, and

wherein the second protrusion protrudes from another portion of the third face in a fourth direction that is orthogonal to the third direction.

11. The accessory device of claim 1, further comprising:

a hall integrated circuit disposed between the first face and the second face of the housing of the accessory device.

12. An electronic device comprising:

a housing comprising;

a first face directed in a first direction,

a second face directed in a second direction that is opposite to the first direction, and

a side face that at least partially encloses a space between the first face and the second face;

a cover accessory detachably mountable on the housing, and comprising;

a first face configured to face the second face of the electronic device when the cover accessory is mounted on the electronic device,

a second face opposite to the first face, and

a third face extending in the first direction from the first face so as to enclose at least a portion of the side face;

a first battery disposed within the cover accessory;

a first conductive pattern electrically configured to;

connect to the first battery, and

transmit power outside the cover accessory in a wireless manner;

a second battery within the cover accessory; and

a second conductive pattern electrically configured to;

connect to the second battery, and

receive power from the outside of the cover accessory in a wireless manner,

wherein substantial areas of the first face and the third face of the housing of the cover accessory comprises a non-conductive material.

13. The electronic device of claim 12, further comprising:

a first circuit electrically connected to the first battery and the first conductive pattern,

wherein the first circuit is configured to;

apply a current output from the first battery to the first conductive pattern, and

transmit power to the second conductive pattern based on the current applied to the first conductive pattern.

14. The electronic device of claim 12, further comprising:

a second circuit electrically connected to the second battery and the second conductive pattern,

wherein the second circuit is configured to;

receive at least a part of the power transmitted from the first conductive pattern by using the second conductive pattern, and

charge the second battery based on the received power.

15. The electronic device of claim 12, wherein, when the cover accessory is mounted, the first conductive pattern and the second conductive pattern are aligned to each other when viewed from above the first face of the housing.

16. The electronic device of claim 12, wherein at least a partial region of the first face of the housing comprises a display.

17. The electronic device of claim 16,

wherein the cover accessory comprises a fourth face that extends from the third face of the cover accessory, and

wherein the fourth face is rotatably arranged to cover at least a partial region of the display.

18. The electronic device of claim 12, wherein the cover accessory comprises a charging connector port to charge the first battery in a wired manner.

19. The electronic device of claim 12, wherein the cover accessory comprises at least one LED indicator configured to visually inform a user of a charge state of the first battery and the second battery.

20. The electronic device of claim 12, wherein the cover accessory comprises at least one key button configured to:

confirm a charging status of the first battery and the second battery,

initiate a wireless charging operation of the cover accessory, or

turn ON/OFF a power source of the cover accessory.

21. A method of wirelessly charging an electronic device via an accessory device, the method comprising:

detachably mounting the accessory device on the electronic device;

positioning a battery in a housing of the accessory device; and

connecting at least one conductive pattern electrically to the battery;

wherein the conductive pattern is configured for at least one of;

transmitting power to the electronic device in a wireless manner, and

receiving power from an external device in a wireless manner.

22. The method of claim 21, wherein areas of the housing of the accessory device comprise a non-conductive material.