Vibration motor

Abstract

The invention provides a vibration motor, which comprises a base provided with a bottom wall and a side wall, an upper cover combined with the base so as to form an accommodation space, a spring piece accommodated in the accommodation space, and a vibrator supported by the spring piece in the accommodation space, wherein the spring piece is provided with a fixed part connected with the side wall, an elastic arm which is bent and extended out of the fixed part, and a connection part which is extended out of the elastic arm and connected with the vibrator; the upper cover is provided with a main body part covered on the base and a first flange part extended out of the main body part to the bottom wall; the first flange part is positioned in a vibration direction of the vibrator and arranged between the fixed part and the connection part of the spring piece; and the flange part is opposite to the fixed part and spaced from the fixed part at a certain distance. The vibration motor can effectively prevent overlarge amplitude and overlarge displacement of the vibrator during falling so as to avoid a phenomenon, caused by impact of the vibrator on the fixed part of the spring piece and the side wall of the base, of deformation of a shell of the vibration motor or damage to the spring piece; therefore, the performance of the vibration motor can be improved.

Description

【Technical field】 [0001] The invention relates to a vibration motor, in particular to a flat vibration motor used in portable consumer electronic products. 【Background technique】 [0002] With the development of electronic technology, portable consumer electronic products are becoming more and more popular, such as mobile phones, handheld game consoles, navigation devices or handheld multimedia entertainment equipment, etc., generally use vibration motors for system feedback, such as mobile phone Incoming call prompts, information prompts, navigation prompts, vibration feedback of game consoles, etc. Such a wide range of applications requires high performance and long service life of the vibration motor. [0003] The vibrating motor of the related art includes a base with a side wall, an upper cover assembled with the base, a vibrator accommodated in the base and a spring supporting the vibrator and connected with the side wall of the base. The connected fixed part, the el...

AI Technical Summary

Problems solved by technology

However, when the product falls, the vibration amplitude of the vibrator in the vibration space will increase sharply, causing the spring to increase its own elastic deformation, and it is easy for the vibrator to hit the fixed part and the side wall, which will not only cause deformation of the shell, and damage the spring. damaged, it will also affect the performance of the product

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