Charging assembly of mobile terminal

• US 10,084,328 B2
• Filed: 01/16/2015
• Issued: 09/25/2018
• Est. Priority Date: 05/30/2014
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: You, Taehoon, Han, Shin, Yang, Kyungtae, Park, Siyoung, Oh, Hyunseok
• Primary Examiner(s): Parihar, Suchin
• Application Number:
  US15/314,830
• Publication Number:
  US 20170201108A1
• Time in Patent Office: 1,348 Days
• Field of Search: 320108
• CPC Class Codes: H01F 27/2804 Printed windings
• CPC Class Codes: H01F 27/363 made of electrically conductive material
• CPC Class Codes: H01F 38/14 Inductive couplings for wireless supply or distribution of electric power using inductive coupling H02J50/10
• CPC Class Codes: H01F 7/0247 Orientating, locating, transporting arrangements
• CPC Class Codes: H01F 7/0252 PM holding devices H01F7/021, H01F7/0215, H01F7/0226 take precedence
• CPC Class Codes: H02J 50/005 Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/70 involving the reduction of electric, magnetic or electromagnetic leakage fields
• CPC Class Codes: H02J 50/80 involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
• CPC Class Codes: H02J 50/90 involving detection or optimisation of position, e.g. alignment
• CPC Class Codes: H02J 7/0044 specially adapted for holding portable devices containing batteries H02J7/0045 takes precedence

Abstract

The present disclosure relates to a charging assembly of a mobile terminal. Disclosed is a charging assembly of a mobile terminal, comprising: a charger; and a mobile terminal. The charger comprises: an upper case forming a top surface and a side surface; and a lower case, coupled to the lower portion of the upper case, for forming an inner space in which parts are embedded. The mobile terminal is seated in the charger and chargeable by being electrically connected to the charger. In a plurality of areas within the inner space, magnetic elements are arranged, and in the mobile terminal, a metal member is arranged in such a manner that at least a part thereof is arranged in an area which overlaps or is adjacent to the magnetic element so that the metal member is attached to the magnetic element due to attraction with the magnetic element. The top surface comprises: an inclined portion which is bent downward so as to be in contact with the rear edge portion of the mobile terminal; and a flat base portion which extends from the inclined portion and is in contact with the rear central portion of the mobile terminal, wherein the magnetic elements arranged in the plurality of areas are placed diagonally to each other.

Claims

1. A charging assembly of a mobile terminal, the assembly comprising:

a charger having an upper case forming a top surface and a side surface, and a lower case coupled to the lower portion of the upper case, for forming an inner space in which parts are embedded; and

a mobile terminal seated in the charger and chargeable by being electrically connected to the charger, wherein in a plurality of areas within the inner space, magnetic elements are arranged, and a metal member is arranged in such a manner that at least a part thereof is arranged in an area which overlaps or is adjacent to the magnetic elements so that the metal member is attached to the magnetic elements due to attraction with the magnetic elements, wherein the top surface comprises an inclined portion which is bent downward so as to be in contact with the rear edge portion of the mobile terminal, and a flat base portion which extends from the inclined portion and is in contact with the rear central portion of the mobile terminal, and wherein the magnetic elements arranged in the plurality of areas are placed diagonally to each other,

wherein the charger includes a charging connection terminal disposed on one side at an inner side thereof,

wherein the magnetic elements include a first magnetic element and a second magnetic element, and

wherein the first magnetic element is disposed at one side of the charging connection terminal and the second magnetic element is disposed at a position diagonal to the first magnetic element.

2. The assembly of claim 1, wherein the charger further comprises an external battery provided within the inner space to operate the mobile terminal.

3. The assembly of claim 2, wherein the charging connection is configured as a plurality of pins, and is externally exposed.

4. The assembly of claim 3, wherein the magnetic elements are laminated into at least two layers.

5. The assembly of claim 1, wherein the magnetic elements are accommodated in a metal container.

6. The assembly of claim 5, wherein below the metal container is provided a metal sheet shielding a magnetic field.

7. The assembly of claim 2, wherein a part of the charging connection terminal is externally exposed through the top surface, and the mobile terminal is provided with a charging terminal brought into contact with the charging connection terminal.

8. The assembly of claim 7, wherein the charging connection terminal is a pogo pin with an elastic member embedded therein.

9. The assembly of claim 7, wherein a part of the charging connection terminal is surrounded by a magnet provided within the inner space.

10. The assembly of claim 6, wherein the mobile terminal comprises:

a front case accommodating a display unit therein;

a rear case provided on a lower portion of the front case and having components therein; and

a battery case provided on a lower portion of the rear case and having an inner battery therein, the battery case covering the rear case,

wherein the charging terminal is disposed in an inwardly-recessed accommodation groove.

11. The assembly of claim 10, wherein the metal member is provided at an inner side of the rear case.

12. The assembly of claim 1, wherein the metal member is provided by one or in plurality.

13. The assembly of claim 10, wherein the display unit outputs which one of the internal battery or external battery is used.

14. The assembly of claim 1, wherein the charger comprises a transmitting coil configured to transmit power in a wireless manner, and the mobile terminal comprises a receiving coil configured to receive power in a wireless manner through transmission and reception with the transmitting coil, wherein the power wirelessly received from the transmitting coil is charged in the battery of the mobile terminal.

15. The assembly of claim 14, wherein the transmitting coil is a spiral type coil or a solenoid type coil.

16. The assembly of claim 15, wherein the receiving coil is a spiral type coil or a solenoid type coil.

17. The assembly of claim 15, wherein the coil comprises a first coil disposed at a center, and a plurality of second coils disposed around the first coil.

18. The assembly of claim 14, wherein the transmitting coil is disposed on a top surface of a first printed circuit board provided within the charger, and the receiving coil is disposed on a lower surface of a second printed circuit board provided within the mobile terminal.