COIL UNIT

• Main Authors: YAMADA NORIHISA, KOMATSU HIROKI, SAWADA ATSUSHI
• Format: Patent
• Language: English; Japanese
• Published: 14.01.2016
• Subjects: BASIC ELECTRIC ELEMENTS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRICITY; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; GENERATION; INDUCTANCES; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MAGNETS; PERFORMING OPERATIONS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; SYSTEMS FOR STORING ELECTRIC ENERGY; TRANSFORMERS; TRANSPORTING; VEHICLES IN GENERAL

PROBLEM TO BE SOLVED: To prevent scattering stones etc. from contacting with a valve provided at a case of a coil unit for electric power reception and a vent hole of the valve.SOLUTION: A coil unit 11 of the invention includes: a resin case 13 attached to a lower surface of a vehicle body, the resin case 13 in which a coil supplied with electric power through electromagnetic induction is housed; a valve 53 which adjusts an atmospheric pressure difference between an interior part and an exterior part of the case 13; and a resin cover 59 which is attached to a bottom wall 23 so as to cover a vent hole 57 of the valve 53 which is provided at the bottom wall 23 of the case 13 and leads to the exterior part. The cover 59 is engaged so as to slide along the bottom wall 23. 【課題】受電用のコイルユニットのケースに設けられる弁や弁の通気口に飛び石等が接触するのを防ぐこと。【解決手段】本発明のコイルユニット１１は、車体下面に取り付けられ、電磁誘導で給電されるコイルが収容される樹脂製のケース１３と、このケースの内外の気圧差を調節する弁５３と、この弁のケースの底壁に設けられる外部との通気口５７を覆うように底壁２３に取り付けられる樹脂製のカバー５９とを備える。カバー５９は、底壁２３に沿ってスライド可能に係合される。【選択図】図３