Broadband motor

Abstract

The invention relates to a broadband motor, and the motor comprises a shell, a magnetic assembly, an elastic mechanism, a mass block and a connecting part; the motor also comprises a coil assembly, and the coil assembly comprises a plurality of coils; the magnetic assembly is arranged in the shell, and the coils surround the periphery of the connecting part. The magnetic assembly comprises a firstmagnetic part, a second magnetic part, a third magnetic part, a fourth magnetic part and an internal magnetic part; the connecting part, the mass block, the first magnetic part, the second magnetic part and the internal magnetic part form an oscillator assembly, and the mass block, the first magnetic part, the second magnetic part and the internal magnetic part are connected through the connecting part. The magnetic field of the motor vibrator assembly and the magnetic field of the motor shell repel each other to achieve force balance, so the vibrator is suspended in the motor, the vibrator assembly has a repulsive force in the motor shell and in the directions of the two ends, the force in the directions of the two ends of the vibrator assembly is balanced, and the polarity of the magnetic field of the structure can be completely reversed.

Description

Technical field[0001]The invention relates to the technical field of vibration motors, in particular to a broadband motor.Background technique[0002]The current vibration motors in the electronics industry, such as those in mobile phones, game controllers and VR controllers, generally use rotor motors or traditional linear motors, and rotor motors have a single vibration effect. Although the traditional linear motor can provide a certain vibration effect experience, the response frequency bandwidth is relatively narrow, and it is difficult to meet the requirements of consumers for a wider frequency band vibration effect. At the same time, the traditional linear motor uses a metal or plastic spring structure, which has reliability risks such as spring fracture and noise, and is difficult to manufacture and high in cost.[0003]Patent document CN207691660U discloses a linear vibration motor. The motor includes a housing, a stator assembly housed and fixed in the housing, a vibrator assem...

AI Technical Summary

Problems solved by technology

[0007] The above-mentioned patent literature adopts the one-sided force balance design of the asymmetric magnetic field, emphasizing the feedback of the striking effect, and the magnetic hammer needs more space for movement

At the same time, the single-sided force balance design cannot avoid the friction between the magnetic hammer and the inner wall of the moving cavity, resulting in noise and other quality problems. At the same time, some of the mechanical springs used in the design have relatively high spring stress, so it is easy to cause spring breakage.

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