Sound production device and electronic equipment

Abstract

The embodiment of the invention provides a sound production device and electronic equipment. The electronic equipment can comprise a mobile phone, a tablet personal computer, a notebook computer, a super mobile personal computer (UMPC), a handheld computer, an interphone, a netbook, a POS machine, a personal digital assistant (PDA), an automobile data recorder, wearable equipment, virtual realityequipment, Bluetooth sound equipment / earphones, vehicle-mounted front equipment and other mobile or fixed terminals with a loudspeaker function. A damping assembly is arranged and plays a role in decelerating the air flow formed in the rear sound cavity, so that the air flow formed in the rear sound cavity enters the cavity in the electronic equipment in a low-flow-speed state, the impact of the air flow on the thinner electronic equipment shell is weakened, the amplitude is reduced, the purpose of suppressing or reducing the shell vibration of the electronic equipment is achieved, and the experience of holding the electronic equipment by a user is improved.

Description

technical field [0001] The present application relates to the technical field of terminals, in particular to a sound generating device and electronic equipment. Background technique [0002] With the development of electronic technology, mobile phones are indispensable in people's daily life, and speakers (such as dynamic speakers, piezoelectric speakers or other external devices) are also indispensable components of mobile phones. The transducer that converts into sound energy, specifically converts the electrical signal of the amplifier into the mechanical vibration of the diaphragm, and then causes the surrounding air to change in density, so that the sound wave is transformed and sounded. [0003] At present, when a speaker is installed in a mobile phone, in order to make the low-frequency dive of the speaker large, the speaker adopts a semi-open rear cavity structure, specifically: the rear sound cavity of the speaker communicates with the internal space of the mobile p...

AI Technical Summary

Problems solved by technology

[0004] Then, after the rear sound cavity of the speaker communicates with the internal space of the mobile phone, when the speaker works, the airflow generated by the vibration of the diaphragm of the speaker passes through the rear sound cavity and enters the interior of the mobile phone, which easily causes the thinner back cover to vibrate, making the user Strong vibration when holding the phone

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