OPTICAL TRANSMISSION MODULE AND ELECTRONIC CONTROL DEVICE

To provide an optical transmission module capable of suppressing malfunctions due to an electromagnetic wave noise.SOLUTION: An optical transmission module 12 comprises a printed-circuit board 20 with a conductor pattern 22 including a ground pattern 220, an optical connector 30, a photoelectric con...

Full description

Saved in:
Bibliographic Details
Main Authors BEPPU YOSHITADA, HORIGUCHI KOJI, MOMOTAKE YASUHIRO, SASAKI MASARU, IIKUBO TADAHISA, FUJIWARA HIROYUKI, MIZUNO MICHIHIKO
Format Patent
LanguageEnglish
Japanese
Published 27.12.2021
Subjects
BASIC ELECTRIC ELEMENTS
CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS
DEVICES USING STIMULATED EMISSION
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
PRINTED CIRCUITS
SEMICONDUCTOR DEVICES
Online AccessGet full text

Cover

More Information
Summary:To provide an optical transmission module capable of suppressing malfunctions due to an electromagnetic wave noise.SOLUTION: An optical transmission module 12 comprises a printed-circuit board 20 with a conductor pattern 22 including a ground pattern 220, an optical connector 30, a photoelectric conversion unit 40, and a shield member 50. The optical connector comprises a housing 31 including a fitting part 312 into which an external connector is fitted, and a terminal part 32 which is housed in the housing and to which the external connector is optically connected. The photoelectric conversion unit comprises a photoelectric conversion element 42 optically connected to the terminal part. The shield member is arranged so as to surround the terminal part and the photoelectric conversion unit. The shield member is electrically separated from the ground pattern. The printed-circuit board includes an island 223 electrically separated from the ground pattern as a conductor pattern in a position where it overlaps the fitting part in a plan view from a plate thickness direction of the printed-circuit board.SELECTED DRAWING: Figure 2 【課題】電磁波ノイズによる誤動作を抑制できる光伝送モジュールを提供すること。【解決手段】光伝送モジュール１２は、グランドパターン２２０を含む導体パターン２２を備えたプリント基板２０、光コネクタ３０、光電変換部４０、およびシールド部材５０を備えている。光コネクタは、外部コネクタが嵌合する嵌合部３１２を備えたハウジング３１と、ハウジングに収容され、外部コネクタが光学的に結合する端子部３２を有している。光電変換部は、端子部に光学的に結合された光電変換素子４２を有している。シールド部材は、端子部および光電変換部を取り囲むように配置されている。シールド部材は、グランドパターンとは電気的に分離されている。プリント基板は、導体パターンとして、プリント基板の板厚方向からの平面視において嵌合部と重なる位置に、グランドパターンとは電気的に分離されたアイランド２２３を有している。【選択図】図２
Bibliography:Application Number: JP20200102498