Vertical linear motor with iron core embedded in coil

Abstract

The invention provides a vertical linear motor with an iron core embedded in a coil. The motor includes a shell; a rotor assembly and a stator assembly correspondingly matched with the rotor assemblyare arranged in the shell; the stator assembly comprises a coil and an FPC board used for connecting the coil with an external circuit, wherein the iron core is embedded in the coil; the rotor assembly is provided with a permanent magnet correspondingly matched with the coil; the iron core is hollow, and an end face is arranged at the end, away from the permanent magnet, of the iron core. According to the invention, the magnetic conductivity of a whole magnetic circuit can be increased; the magnetic induction intensity received by the coil is improved; better interaction between the permanentmagnet and the coil is facilitated; the magnetic circuit of a product is improved, the energy utilization rate and the vibration force of the product are improved, a BL value of the product is effectively increased, the vibration effect is good, and production, assembly and the like are convenient; the structure is simple, compact and stable, the occupied space is small, and the stability, the reliability and the process yield of the product are improved; mass production of the product is facilitated, and application and development of the product are expanded.

Description

technical field [0001] The present disclosure relates to the technical field of motors, in particular to a vertical linear motor with an iron core nested in a coil. Background technique [0002] With the rapid development of electronic products, especially mobile terminal devices such as mobile phones and tablet computers, these electronic devices basically use vibration generators to prevent noise from electronic devices from disturbing others. The traditional vibration generating device uses a rotor motor based on eccentric rotation, which realizes mechanical vibration through the rotation of the eccentric vibrator. During the rotation of the eccentric vibrator, the commutator and brushes will generate mechanical friction and electric sparks, etc., which will affect The rotational speed of the eccentric vibrator further affects the vibration effect of the device. Therefore, the vibration generating device mostly uses a linear motor with better performance. [0003] Linear...

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Problems solved by technology

[0004] However, some existing linear motors have certain defects in their design, which lead to problems such as small vibration force, large space occupation, poor stability and reliability, etc., thereby reducing the vibration effect of the motor and affecting the performance of linear motors. application and development

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