Mobile phone loudspeaker

Abstract

The invention discloses a mobile phone loudspeaker which comprises an outer cover (1), a diaphragm (2), a steel magnet (3), voice coils (4), a vibration coil (5) and a heat sink (6). A bracket (7) is arranged on the two upper ends of the steel magnet (3). The vibration coil (5) is installed on the bracket (7). The current in the vibration coil (5) is in the opposite direction of the current in the voice coils (4). The heat sink (6) is arranged at the bottom of the outer cover (1). By setting the vibration coil with current flowing in the opposite direction, a magnetic field in the opposite direction of the magnetic field of the voice coils is produced to achieve the purpose of degaussing. The compatibility of the mobile phone loudspeaker under the condition that a hearing aid is used is improved. Moreover, the heat sink replaces the traditional plastic gasket, which improves the radiating capability of the loudspeaker.

Description

technical field [0001] The invention relates to a mobile phone device, in particular to a mobile phone speaker device. Background technique [0002] With the popularity of mobile phones, people have higher and higher requirements for the performance of mobile phones. As the most important part of mobile phone communication devices, mobile phone speakers still have the following disadvantages: 1. Traditional speakers and earphones are both It is a diaphragm structure with a magnet and a bundle of coils. When the coil is energized, the magnetic field changes. The magnetic field and the magnet work together to make the coil drive the diaphragm to produce the sound that people need, but the magnetic field of the coil will affect hearing aids and other products. Therefore, when users wearing hearing aids use mobile phones, they will have poor compatibility problems and cannot hear clear sounds; 2. In traditional mobile phone speakers, there are plastic gaskets under the speaker b...

AI Technical Summary

Problems solved by technology

[0002] With the popularity of mobile phones, people have higher and higher requirements for the performance of mobile phones. As the most important part of mobile phone communication devices, mobile phone speakers still have the following disadvantages: 1. Traditional speakers and earphones are both It is a diaphragm structure with a magnet and a bundle of coils. When the coil is energized, the magnetic field changes. The magnetic field and the magnet work together to make the coil drive the diaphragm to produce the sound that people need, but the magnetic field of the coil will affect hearing aids and other products. Therefore, when users wearing hearing aids use mobile phones, they will have poor compatibility problems and cannot hear clear sounds; 2. In traditional mobile phone speakers, there are plastic gaskets under the speaker body, although the plastic gaskets are in the To a certain extent, it plays the role of waterproof and dustproof, but because of its thick thickness, the speaker of the mobile phone is thicker, which is inconsistent with the current development trend of ultra-thin mobile phones, and the mobile phone will generate more heat after playing sound. Plastic gaskets are not conducive to heat loss and affect the service life of the speaker

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