Flat voice coil motor

• Main Authors: YAO YIHUA, SHI JIAMENG, WANG SHANMING, YIN XIN, SHI LEI
• Format: Patent
• Language: Chinese; English
• Published: 23.05.2023
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; GENERATION

The invention relates to the technical field of semiconductor equipment, and particularly discloses a panel voice coil motor, a coil assembly of the panel voice coil motor comprises at least one coil and at least one magnetic conductive block, the coil is integrally annular, the coil is arranged in the circumferential direction of the magnetic conductive block in a surrounding manner, a magnetic track assembly comprises back iron and a magnet array, and the magnet array is fixed on the back iron. The coil assembly is arranged in the center of the magnet array in the Z-axis direction, when the coil is powered on, a magnetic field formed by the magnetic track assembly and the magnetic conductive block jointly exerts Ampere force on the coil, the stress of the flat voice coil motor in the output direction is increased through the magnetic conductive block, and therefore the thrust density is improved under the same copper loss, and the reliability of the flat voice coil motor is improved. Meanwhile, the whole op