Coil for automated mounting

• US 6,633,219 B2
• Filed: 04/03/2001
• Issued: 10/14/2003
• Est. Priority Date: 04/06/2000
• Status: Expired due to Fees

• Current Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Marbach, Detlef Horst, Spee, Guenther, Van Der Wijst, Hendricus Martinus
• Primary Examiner(s): Hirshfeld, Andrew H.
• Assistant Examiner(s): Hamdan, Wasseem H.
• Application Number:
  US09/825,278
• Publication Number:
  US 20010033175A1
• Time in Patent Office: 924 Days
• Field of Search: 336/200, 336/192, 336/177, 336/212, 336/83
• US Class Current: 336/177
• CPC Class Codes: H01F 17/02 without magnetic core
• CPC Class Codes: H01F 27/2823 Wires H01F27/2866 takes precedence
• CPC Class Codes: H01F 5/00 Coils superconducting coils H01F6/06; fixed inductances of the signal type H01F17/00

Abstract

The present invention relates to a coil (1) having a plurality of turns (2). The characteristic feature of the invention is that the turns (2) include a magnetic material or the turns (2) have an outer layer for carrying an electric current and have a magnetic material in their interior.

Claims

1. An air coil (1), comprising:

a pair of terminals (5); and

a plurality of turns (2) between said pair of terminals,

wherein said plurality of turns (2) are composed of magnetic material independently producing a magnetic force between the plurality of turns (2), said magnetic force holding the plurality of turns together to avoid air gaps between the turns.

2. The air coil (1) of claim 1, wherein said plurality of turns (2) of said air coil (1) are clad with copper.

3. The air coil (1) of claim 1, wherein said plurality of turns (2) of said air coil (1) are clad with gold.

4. The air coil (1) of claim 1, wherein said plurality of turns (2) of said air coil (1) are clad with silver.

5. The air coil (1) of claim 1, wherein a shape and an orientation of said air coil (1) is determinable when said air coil is mounted (1) on the basis of a type and a degree of magnetization of said plurality of turns (2).

6. The air coil (1) of claim 1, wherein said air coil (1) is adapted to be mounted on a printed circuit board (6) by an automatic mounting machine operable to control a mounting of said air coil (1) onto the printed circuit board (6) by an electromagnetic force or vacuum force.

7. An air coil (1), comprising:

a pair of terminals (5); and

a plurality of turns (2) between said pair of terminals,

wherein said plurality of turns (2) includes

an exterior material (3) for carrying an electric current, and

an interior magnetic material independently producing a magnetic force between the plurality of turns (2), said magnetic force holding the plurality of turns together to avoid air gaps between the turns.

8. The air coil (1) of claim 7, wherein said plurality of turns (2) of said air coil (1) are clad with copper.

9. The air coil (1) of claim 7, wherein said plurality of turns (2) of said air coil (1) are clad with gold.

10. The air coil (1) of claim 7, wherein said t plurality of urns (2) of said air coil (1) are clad with silver.

11. The air coil (1) of claim 7, wherein a shape and an orientation of said air coil (1) is determinable when said air coil is mounted (1) on the basis of a type and a degree of magnetization of said plurality of turns (2).

12. The air coil (1) of claim 7, wherein said air coil (1) is adapted to be mounted on a printed circuit board (6) by an automatic mounting machine operable to control a mounting of said air coil (1) onto the printed circuit board (6) by an electromagnetic force or vacuum force.