Electronic device including non-contact charging module and battery

Patent metadata

Field	Value
Publication number	US-10020673-B2
Application number	US-201815886664-A
Country	US
Kind code	B2
Filing date	Feb 1, 2018
Priority date	Feb 17, 2012
Publication date	Jul 10, 2018
Grant date	Jul 10, 2018

Abstract

A mobile terminal is provided, which includes a wireless charging module, a battery pack, and a circuit board substrate. The wireless charging module includes a charging coil formed of a wound conducting wire and a communication coil placed adjacent to the charging coil. The wireless charging module has a substantially planar shape. The battery pack has a substantially planar shape and is configured to store power from the wireless charging module. The circuit board substrate is configured to control operation of the mobile terminal. The wireless charging module overlaps with each of the circuit board substrate and the battery pack.

First claim

The invention claimed is:

1. An electronic device having a communication capability, the electronic device comprising:
a housing having a generally rectangular shape in a plan view of the housing;
a non-contact charging module included in the housing and including: (i) a wireless charging coil having a substantially planar shape and formed of a wound electrical wire, and (ii) a magnetic sheet that overlaps with the wireless charging coil in the plan view of the housing;
a display arranged closer to the magnetic sheet than to the wireless charging coil of the non-contact charging module;
a battery included in the housing and having a substantially planar shape that overlaps with the wireless charging coil of the non-contact charging module in the plan view of the housing, the battery being configured to receive power from the wireless charging coil of the non-contact charging module;
a circuit board included in the housing; and
a Near Field Communication (NFC) antenna included in the housing and including an NFC coil, the NFC coil being formed of a wound electrical wire and including a flexible substrate,
wherein a first axis of the wireless charging coil is orthogonal to a second axis of the NFC coil.

2. The electronic device according to claim 1 , wherein the generally rectangular shape of the housing includes short edges extending in X direction and long edges extending in Y direction, Z direction extending orthogonal to both the X and Y directions,
wherein the first axis of the wireless charging coil extends in the Z direction and the second axis of the NFC coil extends in the X direction.

3. The electronic device according to claim 1 , wherein the wireless charging coil is formed in an oval shape or a circular shape.

4. The electronic device according to claim 1 , wherein the wireless charging coil is formed to define a hollow portion surrounded by the wound electrical wire.

5. The electronic device according to claim 4 , wherein the hollow portion has an oval shape or a circular shape.

6. The electronic device according to claim 4 , wherein the largest span of the hollow portion is greater than 15.5 mm.

7. The electronic device according to claim 6 , wherein the hollow portion has a circular shape and a diameter of the circular-shape hollow portion is greater than 15.5 mm.

8. The electronic device according to claim 1 , wherein a combined thickness of the wireless charging coil and the magnetic sheet is between 0.6 mm and 1.0 mm.

9. The electronic device according to claim 1 , further comprising a second magnetic sheet for the NFC coil.

10. The electronic device according to claim 1 , wherein the magnetic sheet includes a ferrite material.

Assignees

• Panasonic Ip Man Co Ltd

Inventors

• Yamaguchi Shuichiro
• Tabata Kenichiro
• Fujimura Munenori
• Hidaka Akio
• Naruse Takumi

Classifications

• H02J50/005

  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 title

• H02J50/90

  involving detection or optimisation of position, e.g. alignment · CPC title

• H02J7/731

  specially adapted for holding portable devices containing batteries (H02J7/751 takes precedence) · CPC title

• H02J7/42

  with electronic devices having internal batteries, e.g. mobile phones · CPC title

• H02J7/00

  Circuit arrangements for charging or discharging batteries or for supplying loads from batteries · CPC title