Zoom lens assembly

A zoom lens assembly, comprising:

• a lens barrel;
• at least one moving group movably installed at the lens barrel along a front-to-back direction, wherein the at least one moving group is configured for installing a lens;
• and
• a magnetic drive assembly configured for driving the moving group to move along the front-to-back direction, wherein the magnetic drive assembly comprises a drive coil and a magnet structure;
• one of the drive coil and the magnet structure is fixed to the moving group, and the other of the drive coil and the magnet structure is fixed to the lens barrel;
• the drive coil is provided in a magnetic field generated by the magnet structure to generate an electromagnetic drive force in combination with the magnet structure when the drive coil is energized;
• one of the lens barrel and the moving group comprises an installation portion, and the installation portion is provided with an installation groove for installing the drive coil;
• wherein the moving group comprises the installation portion, and the magnet structure is connected to the lens barrel;
• the installation portion is provided with an installation hole for installing the lens, and an end face of the installation portion along the front-to-back direction is recessed with the installation groove;
• the installation groove is provided adjacent to the installation hole, and the installation groove is provided with a through groove passing through a bottom of the installation groove;
• the magnet structure comprises:
• a magnetic yoke provided between the installation portion and the lens barrel, wherein the magnetic yoke comprises a plurality of magnetic yoke segments, and the plurality of magnetic yoke segments comprise a first magnetic yoke segment and a second magnetic yoke segment both extending along the front-to-back direction and being spaced apart;
• the first magnetic yoke segment is installed at an inner wall of the lens barrel, and the second magnetic yoke segment is provided at a side of the first magnetic yoke segment facing the installation portion and is installed at the drive coil in the installation groove;
• and
• a magnet extending along the front-to-back direction, wherein the magnet is provided at a side of the first magnetic yoke segment facing the second magnetic yoke segment and is configured to correspond to the installation groove.