Heat radiating type magnetic shielding sheet antenna module and electronic device comprising the same

Provided is a heat radiating-type magnetic shielding sheet. The magnetic shielding sheet provided by one embodiment of the present invention includes a heat radiating-type magnetic shielding unit including a plurality of magnetic layers, in which at least one eddy current reduction pattern unit is f...

Full description

Saved in:
Bibliographic Details
Main Author JANG KIL JAE
Format Patent
LanguageEnglish
Korean
Published 07.03.2023
Subjects
Online AccessGet full text

Cover

Loading…
More Information
Summary:Provided is a heat radiating-type magnetic shielding sheet. The magnetic shielding sheet provided by one embodiment of the present invention includes a heat radiating-type magnetic shielding unit including a plurality of magnetic layers, in which at least one eddy current reduction pattern unit is formed, and a heat radiation boding member disposed between adjacent magnetic layers to improve heat transfer in a thickness direction of the magnetic shielding unit. Accordingly, the present invention can reduce the occurrence of an eddy current by increasing the overall resistance of the overall magnetic shielding sheet through the eddy current reduction pattern unit and implement high permeability of 2000 or higher while having a very thin thickness. In addition, the present invention can quickly emit an increased eddy current by selectively forming the eddy current reduction pattern locally in an area corresponding to an antenna in an overall area and quickly emit heat outward caused by an eddy current increased by the reduction in thickness according to a recent light, thin, short, and small trend and accordingly reduced resistance, thereby minimizing performance reduction of peripheral parts such as an antenna to be generally applied to various electronic devices including a mobile electronic device. 방열형 자기장 차폐시트가 제공된다. 본 발명의 일 실시예에 의한 자기장 차폐시트는 적어도 1개의 와전류감소패턴부가 형성된 다수 개의 자성층, 및 인접하는 자성층 사이에 배치되어 자기장 차폐부의 두께방향 열전달을 개선시키기 위한 방열접착부재를 포함하는 방열형 자기장 차폐부를 구비하여 구현된다. 이에 의하면, 와전류감소패턴부를 통해 전체적인 자기장 차폐시트의 저항을 증가시켜 와전류의 발생을 저감하는 한편, 매우 얇은 두께를 가지면서도 2000 이상의 고투자율을 구현할 수 있다. 또한, 전체면적 중 안테나와 대응되는 영역에 국부적으로 와전류감소패턴을 선택적으로 형성함에 따라 증가하는 와전류와, 최근 경박단소형화 추세에 따라 더욱 얇아지는 두께 및 이로 인한 저항감소에 따른 와전류 증가로 인한 발열을 외부로 빠르게 방출할 수 있음에 따라서 안테나와 같은 주변 부품의 성능저하를 최소화할 수 있어서 휴대용 전자기기를 비롯한 각종 전자기기에 널리 응용될 수 있다.
Bibliography:Application Number: KR20210113797