Low noise reactor and its prodacing method

A manufacturing method and reactor technology, which are used in the manufacture of inductors/transformers/magnets, transformers/inductor cores, and circuits, etc. problems, to achieve the effect of preventing vibration or collision, preventing degradation, and improving fuel efficiency

Inactive Publication Date: 2006-06-07
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, it is not possible to ensure a high bond strength between the abutting surfaces of laminated steel sheets
Therefore, it is difficult to effectively suppress the vibration caused by the electromagnetic attraction between the laminated steel plates
[0010] Especially under severe working conditions such as being mounted on a vehicle or being repeatedly actuated by high voltage and high current, even if the laminated steel sheets are firmly bonded at the time of assembly, the bond strength decreases over time, thereby make noise louder

Method used

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  • Low noise reactor and its prodacing method
  • Low noise reactor and its prodacing method
  • Low noise reactor and its prodacing method

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Embodiment Construction

[0035] An embodiment of the present invention will be described below with reference to the accompanying drawings.

[0036] figure 1 A core body 1 of a low noise reactor of the present invention is shown. The core 1 comprises a plurality of laminated steel plates 11 having surfaces 11 a abutting against each other via spacers 12 .

[0037] Each laminated steel plate 11 is formed by laminating a plurality of substantially U-shaped steel plate layers. Laminated steel sheets 11 are impregnated with varnish, so that the steel sheet layers are bonded to each other by the impregnated varnish.

[0038] Instead of the impregnating varnish, epoxy or acrylic impregnating adhesives can also be used to bond the steel sheet layers to each other.

[0039] Each gap spacer 12 interposed between the abutting surfaces 11a of the laminated steel plates 11 may be made of a non-magnetic insulating member such as ceramics, glass, glass epoxy matrix, or the like.

[0040] The abutting surface 11...

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Abstract

This invention provides a low-noise reactor with its core made up of multiple lamination steel plates dipped with paint, in which, these plates have related leaning faces fixed by binders after leaning with each other directly or with multiple pads, paint binding the lamination steel plates on the leaning faces is removed, then a binder is filled between the leaning faces of the plates or between the lamination plates and the pads then to be cured.

Description

technical field [0001] The present invention relates to a reactor installed in a fuel cell electric vehicle or a hybrid electric vehicle and a manufacturing method thereof. In particular, the present invention relates to a low-noise reactor whose noise is suppressed and a method of manufacturing the same. Background technique [0002] Generally, a reactor used in a vehicle such as a fuel cell electric vehicle or a hybrid vehicle generates a lot of noise due to its high current and high voltage specifications. The main part of this noise is the high frequency of 5kHz-20kHz, so it is necessary to suppress the noise of this reactor. [0003] The core (iron core) constituting the reactor is usually constructed as follows: a plurality of laminated steel plates impregnated with varnish are abutted against each other directly or through gap (air gap) gaskets and the abutting surfaces of the laminated steel plates are fixed with adhesive together. Noise is mainly caused by vibrat...

Claims

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Application Information

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IPC IPC(8): H01F27/24H01F27/26H01F41/00
Inventor 村田高人
Owner TOYOTA JIDOSHA KK
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