A pantograph for a high speed train having a fan head attachment for reducing an aerodynamic noise according to an embodiment of the present invention comprises: an under body which is installed on a railroad car; a frame unit which is coupled with the under body to rotate, and folded to be tilted during rotation; a fan head which is coupled with the frame unit to be tilted with the frame unit, and receives a power source for operation from the outside; and an air resistance reducing block which is attached to the fan head to form a streamline structure. According to the present invention, a conventional fan head can be formed in a streamline structure at low costs by attaching air resistance reducing blocks having streamline structures to front and rear surfaces of the fan head which has a rectangular cross-section. Therefore, disturbance in a flow is narrowly delivered to a rear portion and the generation of a vortex is minimized in the rear portion of the fan head. Also, since a noise due to the vortex is reduced, a drag due to a pressure difference between the front and rear portions can also be decreased.

    본 발명의 실시예에 따른 공력소음 저감을 위한 팬 헤드 부착물을 구비하는 고속 열차용 팬터그래프는 철도차량의 상부에 설치되는 언더 바디, 상기 언더 바디에 회동 가능하게 결합되고, 회동 시 절첩되어 틸팅되는 프레임부, 상기 프레임부에 결합되어 상기 프레임부와 함께 틸팅되고, 외부로부터 구동을 위한 전원을 인가받는 팬 헤드, 그리고 상기 팬 헤드에 부착되어 유선형 구조를 형성하는 공기저항 감소블록을 포함한다. 본 발명에 의하면, 단면이 사각형상인 팬 헤드의 전면 및 후면에 유선형 구조를 가진 공기저항 감소블록을 부착함으로써, 적은 비용으로 기존의 팬 헤드를 유선형 구조로 형성할 수 있음은 물론, 이를 통해 유동의 교란이 후방으로 좁게 전파되어 팬 헤드의 후방에 와류의 발생이 최소화되고, 나아가 와류에 의한 소음발생이 저감되어 전, 후방 압력차에 의한 항력 또한 저감될 수 있다.


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    Title :

    PANTOGRAPH FOR HIGH-SPEED TRAIN PROVIDED WITH PAN HEAD ATTACHMENT FOR REDUCING AERODYNAMIC NOISE


    Additional title:

    공력소음 저감을 위한 팬 헤드 부착물을 구비하는 고속 열차용 팬터그래프


    Contributors:

    Publication date :

    2016-06-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES / G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES



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