To provide aerodynamic sound reduction structure of a current collector which can further improve aerodynamic sound reduction effect with a simple structure.SOLUTION: An aerodynamic sound reduction structure 20 reduces aerodynamic sound generated from a current collector 3, and comprises, on a travel direction front side of a shoe supporting part 7 of the current collector 3, a connection arm part 21 which connects a collector head 5 and the shoe supporting part 7 of the current collector 3 with a gap therebetween. The connection arm part 21 comprises a pair of branch parts 21b, 21c which branch toward the collector head 5 side from the shoe supporting part 7 side, and a flow F passes through a gap S between the pair of branch parts 21b, 21c from below to above. In the connection arm part 21, a stem 21a of the connection arm part 21 is connected to the shoe supporting part 7, and tips of the pair of branch parts 21b, 21c are connected to the collector head 5. The pair of branch parts 21b, 21c project forward from the stem 21a of the connection arm part 21 and branch.SELECTED DRAWING: Figure 7
【課題】簡単な構造によって空力音低減効果をより一層向上させることができる集電装置の空力音低減構造を提供する。【解決手段】空力音低減構造20は、集電装置3から発生する空力音を低減する構造であり、集電装置3の舟支え部7の進行方向前側で、この集電装置3の舟体5とこの舟支え部7とを間隔をあけて接続する接続アーム部21を備えている。接続アーム部21は、舟支え部7側から舟体5側に向かって分岐する一対の分岐部21b,21cを備えており、一対の分岐部21b,21cの間の間隙部Sを下方から上方に向かって流れFが通過する。接続アーム部21は、この接続アーム部21の基部21aが舟支え部7に接続されており、一対の分岐部21b,21cの先端部が舟体5に接続されている。一対の分岐部21b,21cは、接続アーム部21の基部21aから前方に突出して分岐している。【選択図】図7
AERODYNAMIC SOUND REDUCTION STRUCTURE OF CURRENT COLLECTOR
集電装置の空力音低減構造
2023-05-18
Patent
Electronic Resource
Japanese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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