COIL DEVICE AND HOLDER

• US 20190326049A1
• Filed: 08/30/2017
• Published: 10/24/2019
• Est. Priority Date: 09/02/2016
• Status: Active Grant

• Current Assignee: IHI Corporation
• Original Assignee: IHI Corporation
• Inventors: NISHIMURA, Kenji, TOKURA, Susumu, ARAKI, Jun
• Granted Patent: US 11,170,922 B2
• Time in Patent Office: Days
• CPC Class Codes: B60L 5/00 Current collectors for power supply lines of electrically-propelled vehicles current collectors in general H01R41/00
• CPC Class Codes: B60L 50/50 using propulsion power supplied by batteries or fuel cells
• CPC Class Codes: H01F 27/06 Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
• CPC Class Codes: H01F 27/2823 Wires H01F27/2866 takes precedence
• CPC Class Codes: H01F 27/2871 Pancake coils
• CPC Class Codes: H01F 27/30 Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
• CPC Class Codes: H01F 38/14 Inductive couplings for wireless supply or distribution of electric power using inductive coupling H02J50/10
• CPC Class Codes: H01F 5/02 wound on non-magnetic supports, e.g. formers
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 90/14 Plug-in electric vehicles

Abstract

A coil device is provided with a coil and a holder which holds the coil. The coil is formed by a conductive wire being wound in a wound wire direction and includes a plurality of turns that are adjacent in a direction intersecting the wound wire direction. The holder includes a plurality of first holding portions that hold the conductive wire in such a way that the conductive wire passes along a plurality of first paths corresponding to the plurality of turns, and at least one second holding portion which holds the conductive wire in such a way that the conductive wire passes along a second path extending in a direction intersecting the wound wire direction and connecting the first paths.

Claims

1. A coil device comprising:

a coil; and

a holder holding the coil,

wherein the coil is formed by a conductive wire being wound in a wound wire direction and includes a plurality of turns adjacent in a direction intersecting the wound wire direction, and

wherein the holder includes;

a plurality of first holding portions holding the conductive wire in such a way that the conductive wire passes along a plurality of first paths corresponding to the plurality of turns; and

at least one second holding portion holding the conductive wire in such a way that the conductive wire passes along a second path extending in a direction intersecting the wound wire direction and connecting the first paths.

2. The coil device according to claim 1, wherein the holder further includes a third holding portion holding the conductive wire in such a way that the conductive wire passes along a third path connecting a peripheral edge portion of the holder and the outermost first path closest to the peripheral edge portion among the plurality of first paths.

3. The coil device according to claim 1, wherein the conductive wire is wound in opposite directions in two of the first paths adjacent to each other after passing along the second path.

4. The coil device according to claim 1, further comprising a nonmagnetic member disposed on a back surface side of the holder,

wherein the nonmagnetic member includes a fourth holding portion holding the conductive wire on a back surface side of the nonmagnetic member.

5. The coil device according to claim 4,

wherein the fourth holding portion is provided in such a way that the conductive wire is capable of passing along a plurality of loop-shaped fourth paths, and

wherein the nonmagnetic member further includes a fifth holding portion holding the conductive wire in such a way that the conductive wire passes along a fifth path connecting the plurality of fourth paths and a peripheral edge portion of the nonmagnetic member.

6. The coil device according to claim 1,

wherein the holder includes a first groove as the first holding portion configured to receive the conductive wire and a second groove as the second holding portion configured to receive the conductive wire, and

wherein the first groove and the second groove are formed on a surface side or the back surface side of the holder.

7. A holder holding a coil including a conductive wire, the holder comprising:

a plurality of first holding portions holding the conductive wire in such a way that the conductive wire passes along first paths corresponding to a plurality of turns adjacent in a direction intersecting a wound wire direction in which the conductive wire is wound; and

at least one second holding portion holding the conductive wire in such a way that the conductive wire passes along a second path extending in a direction intersecting the wound wire direction and connecting the first paths.