A magnetic field Shielding module for an electric vehicle and a wireless power transfer module for an electric vehicle

• Main Author: JANG KIL JAE
• Format: Patent
• Language: English; Korean
• Published: 04.05.2023
• Subjects: BASIC ELECTRIC ELEMENTS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; GENERATION; INDUCTANCES; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MAGNETS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; PERFORMING OPERATIONS; PRINTED CIRCUITS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; SYSTEMS FOR STORING ELECTRIC ENERGY; TRANSFORMERS; TRANSPORTING; VEHICLES IN GENERAL

A magnetic field shielding module for an electric vehicle is provided. The magnetic field shielding module for an electric vehicle according to an embodiment of the present invention comprises: a main shielding layer which includes a plurality of unit blocks made of ferrite material so that conductive members can shield magnetic fields generated from a planar coil wound several times, and which is formed in a plate shape with a predetermined area by the plurality of unit blocks arranged to be adjacent to each other; and an auxiliary shielding layer which is made of a magnetic material containing a metal component to complement the main shielding layer, is arranged on one side of the main shielding layer, and has a penetration part formed in the shape corresponding to the planar coil. Therefore, the magnetic field shielding module can enhance the efficiency of wireless power transmission. 전기자동차용 자기장 차폐모듈이 제공된다. 본 발명의 예시적인 실시예에 따른 전기자동차용 자기장 차폐모듈은 도전성부재가 복수 회 권선된 평판형코일에서 발생하는 자기장을 차폐할 수 있도록 페라이트 재질로 이루어진 복수 개의 단위블럭들을 포함하고, 상기 복수 개의 단위블럭들이 서로 인접하도록 배열되어 소정 면적을 갖는 판상으로 형성되는 메인차폐층; 및 상기 메인차폐층을 보완할 수 있도록 금속성분을 포함하는 자성재질로 이루어지고, 상기 메인차폐층의 일면에 배치되며, 상기 평판형코일과 대응되는 형상으로 관통형성되는 관통부를 포함하는 보조차폐층;을 포함한다.