Micro electromagnetic vibrator

A vibrator and electromagnetic technology, which is applied in the direction of electrical components, electromechanical devices, etc., can solve the problems of electromagnetic interference of commutation sparks, high material requirements, and easy wear and tear, and achieve large effective force, good controllability of features, and long life. long effect
CN101478219BInactive Publication Date: 2010-09-29乐清市陆宇微电机有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
乐清市陆宇微电机有限公司
Publication Date
2010-09-29
Estimated Expiration
Not applicable · inactive patent

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Abstract

A miniature electromagnetic vibrator comprises a coil arranged in a quadrate housing, a linear iron core, an anti-collision mat, magnetic steel, a vibration body and a jettison device. The linear iron core, the anti-collision mat and the magnetic steel are arranged in the internal of the vibration body, two end surfaces of the linear iron core are respectively connected with the anti-collision mat and is just opposite to one surface of the magnetic steel, and the other surface of the magnetic steel is embedded in the vibration body; one or a plurality of the linear iron cores is / are provided, the coil is wound on the iron core, a lead is led out from the two ends of the coil to be connected with an external power supply, the quadrate housing is basically filed with the vibration body, and the vibration body is connected with the housing through the jettison device. The miniature linear vibrator has the advantages of simple structure, light weight, low manufacturing and material costs, long service life, and no spark and electromagnetic interference.
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Description

technical field

[0001] The invention relates to a vibrator, in particular to a miniature electromagnetic vibrator used in mobile phones, game machines or electric massage appliances. Background technique

[0002] Micro-vibrators are used in mobile phones as silent signal source components; there are other fields that require micro-vibrators such as: game consoles, electric massage appliances, etc. The micro-vibrator currently used is usually a micro-vibration motor. Whether the micro-vibration motor is cylindrical or flat, it is composed of a motor and an eccentric weight. The rotation of the motor drives the rotation of the eccentric weight to generate vibration. , and these DC motors generally have bearings, brushes and commutators, tungsten alloy eccentric wheels, and the rotor with eccentric wheels rotates unbalanced at high speed. It has higher requirements on the materials of bearings, brushes and commutators. The biggest problems with motors with brushes and commutat...

Claims

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