To provide a liquid sealed type vibration control device capable of suppressing collision noise when drawing a movable element into a stator.SOLUTION: A movable element comprises: a shaft-shaped movable element body formed of a soft magnetic material; a flange that protrudes radially outward from the movable element body, is arranged between a stator and a diaphragm and is formed of the soft magnetic material; and a cushioning part provided on a surface at a stator side of the flange and is formed of a rubber-like elastic body. The stator comprises an elastic member pressing the movable element to a diaphragm side, and a coil that is arranged around the movable element body and, when being energized, draws the movable element into the stator against elastic force of the elastic member. In a state of non-energization to the coil, a second shortest distance between the cushioning part and the stator in an axial direction of the movable element body is set to be shorter than a first shortest distance among the movable element body, the flange, and the stator in the axial direction of the movable element body.SELECTED DRAWING: Figure 2
【課題】可動子を固定子に引き込むときの衝突音を抑制できる液封入式防振装置を提供すること。【解決手段】可動子は、軟質磁性体から構成される軸状の可動子本体と、可動子本体から径方向外側へ張り出して固定子とダイヤフラムとの間に配置される軟質磁性体から構成されるフランジと、フランジの固定子側の面に設けられるゴム状弾性体から構成される緩衝部とを備え、固定子は、可動子をダイヤフラム側へ押し付ける弾性部材と、可動子本体の周囲に配置されて通電時に弾性部材の弾性力に逆らって可動子を固定子に引き込ませるコイルとを備え、コイルへの非通電状態において、可動子本体の軸方向における可動子本体およびフランジと固定子との第1最短距離よりも、緩衝部と固定子との軸方向の第2最短距離が小さく設定される。【選択図】図2
LIQUID SEALED TYPE VIBRATION CONTROL DEVICE
液封入式防振装置
2018-12-13
Patent
Elektronische Ressource
Japanisch