According to an embodiment of the present invention, an acoustic excitation apparatus comprises: a first body provided in a cylindrical shape; a second body provided in a cylindrical shape with an open upper end to receive the first body and having a coil wound on an outer circumferential surface of a lower end; an electromagnetic force generating unit having the coil of the second body inserted into an upper end thereof, and vibrating the second body in a vertical direction by a current flowing in the coil; and a cooling unit for supplying a cooling gas into the electromagnetic force generating unit to cool the coil. The cooling unit comprises a flow path formed inside the electromagnetic force generating unit, and the cooling gas supplied to the electromagnetic force generating unit is able to be injected toward the coil through the flow path. The present invention intends to provide an acoustic excitation apparatus and an electromagnetic force generating device having prolonged service life due to prevention of damage by heat.

    일 실시예에 따른 음향 가진 장치는, 원기둥 형상으로 마련된 제1 몸체; 상기 제1 몸체가 수용되도록 상단이 개방된 원기둥 형상으로 마련되고, 하단의 외주면에 코일이 권선된 제2 몸체; 상단에 상기 제2 몸체의 코일이 삽입되고, 상기 코일에 흐르는 전류에 의해 상기 제2 몸체를 상하 방향으로 진동시키는 전자기력 발생부; 및 상기 코일의 냉각을 냉각시키도록 상기 전자기력 발생부 내에 냉각 가스를 공급하는 냉각부;를 포함하고, 상기 냉각부는 상기 전자기력 발생부 내에 형성된 유로를 포함하고, 상기 전자기력 발생부에 공급된 냉각 가스는 상기 유로를 통해 상기 코일을 향하여 분사될 수 있다.


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    Title :

    APPARATUS FOR VIBRATING SOUND AND DEVICE FOR GENERATING ELECTROMAGNETIC FORCE


    Additional title:

    음향 가진 장치 및 전자기력 발생 디바이스


    Publication date :

    2017-05-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen / B06B GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL , Erzeugen oder Übertragen mechanischer Schwingungen allgemein / B64G Raumfahrt , COSMONAUTICS / H01F MAGNETS , Magnete / H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES



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