CIRCUIT BOARD AND METHOD FOR MOUNTING AIR CORE COIL

• US 20130027167A1
• Filed: 07/18/2012
• Published: 01/31/2013
• Est. Priority Date: 07/26/2011
• Status: Abandoned Application

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Sano, Eiichi
• Application Number:
  US13/552,021
• Publication Number:
  US 20130027167A1
• Time in Patent Office: Days
• US Class Current: 336/192
• CPC Class Codes: H05K 1/181 associated with surface mounted components
• CPC Class Codes: H05K 1/182 associated with components mounted in the printed circuit board, e.g. insert mounted components [IMC]
• CPC Class Codes: H05K 2201/09072 Hole or recess under component or special relationship between hole and component
• CPC Class Codes: H05K 2201/1003 Non-printed inductor
• CPC Class Codes: H05K 2203/1311 Foil encapsulation, e.g. of mounted components
• CPC Class Codes: H05K 3/284 for encapsulating mounted components H05K1/185 takes precedence
• CPC Class Codes: Y02P 70/50 Manufacturing or production processes characterised by the final manufactured product
• CPC Class Codes: Y10T 29/49117 Conductor or circuit manufacturing

Abstract

Provided is a circuit board including an air core coil including a winding portion having a conductive wire wound in a helical shape, a first lead portion extending from an end of the winding portion, and a second lead portion extending from another end of the winding portion, wherein the first lead portion and the second lead portion extend in different directions from each other on a substantially same plane, and a coil mounting portion including an opening to accommodate the winding portion, a first conductive part provided on a periphery of the opening and contacting the first lead portion, and a second conductive part provided on the periphery of the opening and contacting the second lead portion.

Claims

1. A circuit board comprising:

an air core coil including

a winding portion having a conductive wire wound in a helical shape,

a first lead portion extending from an end of the winding portion, and

a second lead portion extending from another end of the winding portion,

wherein the first lead portion and the second lead portion extend in different directions from each other on a substantially same plane; and

a coil mounting portion including

an opening to accommodate the winding portion,

a first conductive part provided on a periphery of the opening and contacting the first lead portion, and

a second conductive part provided on the periphery of the opening and contacting the second lead portion.

2. The circuit board according to claim 1,

wherein a length of long sides of the opening is equal to or longer than a length of a winding wire of the winding portion of the air core coil in a winding direction, and a length of short sides of the opening is longer than an outer diameter of the winding portion and shorter than a total length of the outer diameter of the winding portion, the first lead portion, and the second lead portion.

3. The circuit board according to claim 2, the circuit board being mounted on an electronic device,

wherein one of the first lead portion and the second lead portion of the air core coil is connected to an input terminal through which an input signal coming from outside is input to the electronic device, and the other lead portion is grounded.

4. The circuit board according to claim 3,

wherein the input terminal is an antenna input terminal.

5. The circuit board according to claim 2,

wherein the first lead portion and the second lead portion are bent at approximately 90 degrees in a direction parallel with the winding direction of the winding portion.

6. The circuit board according to claim 2,

wherein the first lead portion and the second lead portion are bent at approximately 90 degrees in a direction perpendicular to a surface of the coil mounting portion.

7. A method for mounting an air core coil, comprising:

accommodating a winding portion of the air core coil in a coil mounting portion, the winding portion including a first lead portion extending from an end of the winding portion and a second lead portion extending from a another end of the winding portion, the first lead portion and the second lead portion extending in different directions from each other on a substantially same plane, and the coil mounting portion including an opening to accommodate the winding portion, a first conductive part provided on a periphery of the opening and contacting the first lead portion, and a second conductive part provided on the periphery of the opening and contacting the second lead portion; and

electrically connecting the first lead portion and the second lead portion to the first conductive part and the second conductive part, respectively.