Mobile terminal including charging coil and wireless communication coil, wireless charging module including charging coil and wireless communication coil

• US 9,735,606 B2
• Filed: 05/24/2013
• Issued: 08/15/2017
• Est. Priority Date: 06/28/2012
• Status: Active Grant

• Current Assignee: Sovereign Peak Ventures, LLC (Dominion Harbor Enterprises, LLC)
• Original Assignee: Panasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
• Inventors: Tabata, Kenichiro, Yamaguchi, Shuichiro, Fujimura, Munenori, Koyanagi, Yoshio, Yamamoto, Koichi, Hirobe, Takanori, Uejima, Hiroyuki, Hidaka, Akio, Naruse, Takumi
• Primary Examiner(s): Rodas, Richard Isla
• Assistant Examiner(s): HERNANDEZ, MANUEL J
• Application Number:
  US14/410,555
• Publication Number:
  US 20150326056A1
• Time in Patent Office: 1,544 Days
• Field of Search: 320108, 307104
• CPC Class Codes: G06F 1/203 for portable computers, e.g. for laptops
• CPC Class Codes: H01F 27/22 Cooling by heat conduction through solid or powdered fillings
• 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 50/70 involving the reduction of electric, magnetic or electromagnetic leakage fields
• CPC Class Codes: H02J 50/90 involving detection or optimisation of position, e.g. alignment
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction
• CPC Class Codes: H04B 5/26 using coils
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer
• CPC Class Codes: H04M 2250/04 including near field communication means, e.g. RFID

Abstract

A mobile terminal is provided with a housing, a circuit substrate, a secondary-side non-contact charging module, and a heat dissipating sheet. The circuit substrate comprises a substrate, an electronic component that is mounted to the substrate, and a shield case that covers the electronic component. The heat dissipation sheet is in contact with the shield case.

Claims

1. A mobile terminal comprising:

a housing;

a circuit board included in the housing;

a charging coil arranged in the housing;

a wireless communication coil electrically isolated from the charging coil; and

a magnetic sheet including a front surface, on which the charging coil and the wireless communication coil are arranged, and a back surface;

wherein

the charging coil includes a first winding portion, a first leg portion, and a second leg portion,

the wireless communication coil includes a second winding portion and is arranged adjacent to the charging coil, and

the first and second leg portions of the charging coil are arranged between the second winding portion of the wireless communication coil and the back surface of the magnetic sheet.

2. A wireless charging module comprising:

a charging coil;

a wireless communication coil electrically isolated from the charging coil; and

a magnetic sheet including a front surface, on which the charging coil and the wireless communication coil are arranged, and a back surface;

wherein

the charging coil includes a first winding portion, a first leg portion, and a second leg portion,

the wireless communication coil includes a second winding portion and is arranged adjacent to the charging coil, and

the first and second leg portions of the charging coil are arranged between the second winding portion of the wireless communication coil and the back surface of the magnetic sheet.