Electronic device including non-contact charging module

• US 10,468,913 B2
• Filed: 08/06/2018
• Issued: 11/05/2019
• Est. Priority Date: 06/14/2011
• Status: Active Grant

• Current Assignee: Sovereign Peak Ventures, LLC (Dominion Harbor Enterprises, LLC)
• Original Assignee: Sovereign Peak Ventures, LLC (Dominion Harbor Enterprises, LLC)
• Inventors: Hidaka, Akio, Naruse, Takumi, Fujimura, Munenori, Tabata, Kenichiro, Nishino, Tokuji
• Primary Examiner(s): Williams, Arun C
• Application Number:
  US16/055,852
• Publication Number:
  US 20180375378A1
• Time in Patent Office: 456 Days
• Field of Search: 320108
• CPC Class Codes: H01F 27/2871 Pancake coils
• CPC Class Codes: H01F 27/36 Electric or magnetic shields or screens movable for varying inductance H01F21/10
• CPC Class Codes: H01F 27/363 made of electrically conductive material
• CPC Class Codes: H01F 27/366 made of ferromagnetic 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: 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 50/10 using inductive coupling
• 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: H04B 5/266 One coil at each side, e.g. with primary and secondary coils
• CPC Class Codes: H04B 5/77 for interrogation
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer

Abstract

This communication apparatus makes it possible to have a non-contact charging module and a sheet antenna coexist, even in the case where there the non-contact charging module and the sheet antenna in the communication apparatus. The apparatus is provided with: a housing; a secondary-side non-contact charging module, which is housed in the housing, receives power by means of electromagnetic induction, and has a first coil having a conducting wire wound thereon, and a first magnetic sheet facing the first coil; and an NFC antenna, which is housed in the housing, and has a second coil having a conducting wire wound thereon, and a second magnetic sheet facing the second coil. The secondary-side non-contact charging module and the NFC antenna are not laminated to each other.

Claims

1. An electronic device having a communication capability, the electronic device comprising:

a housing having a surface in a plan view;

a non-contact charging module included in the housing and configured to receive electric power through electromagnetic induction, the non-contact charging module including;

(i) a wireless charging coil comprised of an electrical line wound to define a hole surrounded by the wound electrical line; and

(ii) a magnetic material opposing the wireless charging coil;

a display placed such that the magnetic material is interposed between the display and the wireless charging coil in a viewing direction of the plan view;

a battery configured to store power from the wireless charging coil;

a camera; and

a communication coil which is electrically isolated from the wireless charging coil, wherein

the camera and the communication coil are arranged in a first region of the plan view,

the battery, the wireless charging coil, and the magnetic body are arranged in a second region of the plan view,

the first region and the second region are separated from each other in the plan view, and

the wireless charging coil and the magnetic body overlap with the battery in the plan view.

2. The electronic device according to claim 1, wherein the first region is located on an intended top side of the electronic device compared to the second region in the plan view.

3. The electronic device according to claim 1, wherein the communication coil is a Near Field Communication (NFC) coil.

4. The electronic device according to claim 1, wherein the communication coil has an elongated form.

5. The electronic device according to claim 1, further comprising a second magnetic material opposing the communication coil.

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

7. The electronic device according to claim 1, wherein the hole of the wireless charging coil has an oval shape or a circular shape.

8. The electronic device according to claim 1, wherein the largest span of the hole of the wireless charging coil is greater than 15.5 mm.

9. The electronic device according to claim 8, wherein the hole of the wireless charging coil has a circular shape and a diameter of the hole is greater than 15.5 mm.

10. The electronic device according to claim 1, wherein the magnetic material is shaped in a sheet form.

11. The electronic device according to claim 1, wherein the magnetic material is a ferrite material.