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Reactor and reactor device

A reactor and leg technology, applied in the field of reactor devices, can solve the problems of increased temperature rise and increased copper loss, and achieve the effects of equal cooling, simple structure, and reduction of rigidity.

Inactive Publication Date: 2016-04-06
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] For example, in Patent Document 1, it is pointed out that the reactor of the prior art uses a pair of U-shaped iron cores, the legs of the pair of iron cores respectively fit into the gaps of the opposite end faces, and the bobbins of the pair of coils repeat It is configured in the same way, because the bobbins of the coil are repeated, so the legs of the core cannot be thickened, and the copper loss increases and the temperature rise increases.

Method used

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Embodiment Construction

[0034] Hereinafter, embodiments of the present invention will be described in detail using the drawings. Hereinafter, a reactor and a reactor device used in a power supply device for a vehicle will be described, but a power supply device for applications other than for a vehicle may also be used. Furthermore, as the J-shaped core that is a reactor core, it has been described that one core material has a shape bent into a J-shape, but a plurality of core materials may be combined to form a J-shape. For example, three linear I-shaped cores can be combined to form a J-shape, or an I-shaped core can be combined on one of the two legs of a U-shaped core to form a J-shape. type.

[0035] The J-shaped core will be described as a dust core formed by molding magnetic powder, but an electromagnetic steel sheet may be punched into a predetermined shape. In addition, the case for holding the reactor is described as the power supply device case, but it may be a reactor case for accommoda...

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Abstract

A reactor ( 10 ) utilizes a reactor core ( 12 ) in which J-shaped iron cores face each other to form an annular shape. In this annular shape, the axial outer peripheral portion of the first coil (50) wound in the first gap portion (40) and the axial direction of the second coil (52) wound in the second gap portion (42) The outer peripheral portions repeat each other in the axial direction. Also, regarding the four holding stay portions provided at the four corners of the reactor (10), the holding stay portion near the first gap portion (40) and the holding stay portion near the second gap portion (42) The rigidity is smaller than the rigidity of the holding stay part away from the first gap part (40) and the holding stay part away from the second gap part (42).

Description

technical field [0001] The present invention relates to a reactor and a reactor device in which the reactor is housed in a case, and more particularly to a reactor using a pair of iron cores each having two legs having different lengths, and a reactor in which the reactor is housed in a case device. Background technique [0002] As a reactor used in a booster circuit of a power supply device, a reactor having a coil wound around a reactor core formed in a ring shape can be used. [0003] For example, in Patent Document 1, it is pointed out that the reactor of the prior art uses a pair of U-shaped iron cores, the legs of the pair of iron cores respectively fit into the gaps of the opposite end faces, and the bobbins of the pair of coils repeat If it is configured in the same way, since the bobbin of the coil is repeated, the legs of the core cannot be thickened, and the copper loss increases and the temperature rise increases. Therefore, it is disclosed that a pair of J-sha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F37/00H01F27/26
CPCH01F3/14H01F27/22H01F30/06H01F27/266H01F27/025
Inventor 延坂真央篠原伸树
Owner TOYOTA JIDOSHA KK