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实用新型
CN209134237U 一种能感测运动轨迹的音圈马达 有权

一种能感测运动轨迹的音圈马达
摘要：
本实用新型公开了一种能感测运动轨迹的音圈马达，其与一控制电路板电连接，其包括壳体、可上下移动的配合于壳体内的镜头支架、配合在镜头支架周壁上的驱动线圈以及至少一个固定在壳体侧壁上的驱动磁铁，驱动线圈与控制电路板电连接；所述的一种能感测运动轨迹的音圈马达还包括一个与控制电路板电连接的应变薄膜，所述应变薄膜设置在镜头支架顶部与壳体的内顶壁之间并随镜头支架移动而产生相应形变。本实用新型通过应变薄膜来感测镜头支架的运动轨迹，结构上简单，成本也低。(ESM)同样的发明创造已同日申请发明专利
摘要（英）：

The utility model discloses a voice coil motor capable of sensing a motion trail. Wherein the camera module is electrically connected with a control circuit board and comprises a shell, a lens bracketwhich can move up and down and is matched in the shell, a driving coil which is matched on the peripheral wall of the lens bracket and at least one driving magnet which is fixed on the side wall of the shell, and the driving coil is electrically connected with the control circuit board; the voice coil motor capable of sensing the motion trail further comprises a strain film electrically connectedwith the control circuit board, and the strain film is arranged between the top of the lens support and the inner top wall of the shell and generates corresponding deformation along with movement ofthe lens support. According to the utility model, the movement track of the lens support is sensed through the strain film, the structure is simple, and the cost is low.

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