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Screen sounding device

A screen sound and screen technology, applied to electrical components, loudspeakers, sensors, etc., can solve the problems of complex drive unit structure and small driving force, and achieve the effect of simple structure, large driving force and small size

Active Publication Date: 2019-09-20
AAC TECH NANJING
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] The purpose of the present invention is to provide a screen sounding device, aiming to solve the problem of complex structure and small driving force of the driving unit of the sounding device in the prior art

Method used

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Embodiment Construction

[0021] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0022] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, and therefore cannot be constru...

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Abstract

The invention discloses a screen sounding device which comprises a screen, a frame and an electromagnet type driving module, the electromagnet type driving module is used for driving the screen to vibrate and sound, and the electromagnet type driving module comprises an electromagnet, a magnetic conductive base and a magnetic conductive cover plate. Due to the fact that the polarity of the top of the electromagnet is opposite to that of the magnetic conductive cover plate, the top of the electromagnet attracts the second connecting part of the magnetic conductive cover plate to be powered on discontinuously to achieve vibration. The magnitude of the driving force can be controlled by changing the magnitude of the current flowing into the coil, so that larger driving force can be provided, and a better sounding effect is obtained. In addition, the driving module is simple in structure and easy and convenient to install; the vibration amplitude of the screen is small, so that the sounding device can be made very thin and smaller; compared with a traditional loudspeaker and a traditional receiver, a vibrating diaphragm and other structures are omitted, and the manufacturing cost is lower.

Description

technical field [0001] The invention belongs to the technical field of electroacoustic conversion, and in particular relates to a screen sound generating device. Background technique [0002] With the rapid development of science and technology, there are more and more electronic devices with sounding function, and the sounding function of electronic devices is realized by a sounding device. Many electronic devices have multiple functions, such as video playback, music playback, navigation prompts, etc. In order to be easy to control and carry, the trend of electronic devices is to develop towards refinement. However, the more electronic components in the sound generating device, the more reliable it will be. worse. [0003] For example, the drive unit schemes used in the sound generating device of the existing mobile phone include piezoelectric type and dynamic coil type. The sound generating device is inside the mobile phone, and is connected to the middle frame (or back ...

Claims

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Application Information

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IPC IPC(8): H04R9/06H04R9/02
CPCH04R9/025H04R9/06H04R2400/11
Inventor 陈召宪毛路斌
Owner AAC TECH NANJING
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