Anti-twist structure of voice coil motor

An anti-twist structure of voice coil motor, comprising:

• a base;
• a lens housing connected to the base, wherein the lens housing has a margin wall, and the margin wall has a first protrusion and a contact portion;
• wherein the contact portion is disposed at an outer periphery of the first protrusion;
• an elastic sheet having a hollowed slot, wherein the first protrusion passes through the hollowed slot so that the elastic sheet is disposed on a portion of the margin wall and on the contact portion;
• a magnet disposed on the base and located at one side of the lens housing, wherein the magnet is connected to the elastic sheet;
• and
• a yoke member having an upper wall and a side wall, wherein the side wall is disposed at one side of the upper wall and the side wall extends outward in a direction not parallel to the upper wall, and wherein the yoke member is connected to the base so that the yoke member surrounds the lens housing, the elastic sheet, and the magnet;
• wherein the lens housing has a deflectable angle relative to a horizontal reference line, and the deflectable angle is an included angle between the lens housing and the horizontal reference line.