INDUCTION DEVICE

• US 20150294782A1
• Filed: 04/03/2015
• Published: 10/15/2015
• Est. Priority Date: 04/10/2014
• Status: Active Grant

• Current Assignee: Kabushiki Kaisha Toyota Jidoshokki (Toyota Motor Corporation)
• Original Assignee: Kabushiki Kaisha Toyota Jidoshokki (Toyota Motor Corporation)
• Inventors: MOISEEV, Sergey
• Granted Patent: US 9,666,353 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H01F 27/22 Cooling by heat conduction through solid or powdered fillings
• CPC Class Codes: H01F 27/2866 Combination of wires and sheets

Abstract

There is provided an induction device including a first coil formed by winding a plurality of times a conductive wire that is covered with an insulating layer, a second coil formed of a metal pattern, and a coil support member disposed between the first coil and the second coil. The first coil and the second coil are magnetically connected to each other. There is also provided a transformer including a primary coil formed by winding a plurality of times a conductive wire that is covered with an insulating layer, a secondary coil formed of a metal pattern, and an insulating sheet that is disposed between the primary coil and the secondary coil. The primary coil and the secondary coil are magnetically connected to each other.

Claims

1. An induction device comprising:

a first coil formed by winding a plurality of times a conductive wire that is covered with an insulating layer;

a second coil formed of a metal pattern; and

a coil support member disposed between the first coil and the second coil, wherein the first coil and the second coil are magnetically connected to each other.

2. The induction device according to claim 1, wherein the coil support member is formed of an insulating substrate, wherein at least the first coil of the first and the second coils is supported by the insulating substrate.

3. The induction device according to claim 1, wherein the first coil is supported by a first insulating substrate and the second coil is supported by a second insulating substrate, wherein a radiator plate is supported on a side of the second insulating substrate that is opposite from the second coil and can be fixed to a heat sink member, wherein the first coil and the second coil are disposed on opposite sides of the first insulating substrate, and wherein the first coil, the second coil, and the radiator plate are disposed in overlapping relation to each other as viewed in an axial direction of the first coil.

4. A transformer comprising:

a primary coil formed by winding a plurality of times a conductive wire that is covered with an insulating layer;

a secondary coil formed of a metal pattern; and

an insulating sheet disposed between the primary coil and the secondary coil, wherein the primary coil and the secondary coil are magnetically connected to each other.

5. The transformer according to claim 4, wherein the primary coil is mounted on a first insulating substrate and the secondary coil is mounted on a second insulating substrate, wherein the primary coil is provided on a side of the first insulating substrate that is opposite from the second insulating substrate, wherein the secondary coil are provided on a side of the second insulating substrate that is opposite from the first insulating substrate and the primary coil and the secondary coil are disposed in overlapping relation to each other.