a broadband motor

Abstract

The present invention relates to a wide-band motor, which includes a casing, a magnetic assembly, an elastic mechanism, a mass block and a connecting piece; and a coil assembly, which includes a plurality of coils, the magnetic assembly is arranged in the casing, and a plurality of the The coil surrounds the periphery of the connecting piece; the magnetic assembly includes a first magnetic piece, a second magnetic piece, a third magnetic piece, a fourth magnetic piece and an inner magnetic piece, the connecting piece, the mass block, the first magnetic piece, the second magnetic piece The two magnetic parts and the inner magnetic part form a vibrator assembly, and the mass block, the first magnetic part, the second magnetic part and the inner magnetic part are connected by connecting parts. The magnetic field of the motor vibrator assembly and the magnetic field of the motor housing provided by the present invention repel each other to achieve force balance, so that the vibrator is suspended inside the motor. The vibrator assembly is inside the motor housing, and there are repulsive forces at both ends, and the forces at both ends of the vibrator assembly are balanced. , the magnetic field polarity of this 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] Current vibration motors in the electronics industry, such as vibration motors in mobile phones, vibration motors in game controllers and VR controllers, generally use rotor motors or traditional linear motors, and the vibration effect of rotor motors is single. Although traditional linear motors can provide a certain vibration effect experience, the response frequency bandwidth is narrow, which makes it difficult to meet consumers' requirements for wider frequency band vibration effects. At the same time, the traditional linear motor uses a metal or plastic spring structure, which has reliability risks such as spring breakage 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 accommodated an...

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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