Sound production device

A sound-emitting device and skeleton technology, applied in the field of electro-acoustic conversion, can solve the problems of limiting the loudness of the sound-emitting device, small effective vibration area of ​​the diaphragm, limiting BL value, etc., to achieve large driving force, increase the effective vibration area of ​​the diaphragm, and improve the magnetic field Effect of BL value

Inactive Publication Date: 2020-07-10
AAC TECH PTE LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, in the sound-generating device of the related art, the vibration system and the magnetic circuit system are stacked up and down, and the structure of the magnetic circuit system is limited in the sound-generating device of the same height, thereby limiting the BL value of its magnetic field; in addition , the sound-generating device has only one diaphragm structure, and the effective vibration area (SD) of the diaphragm is small, thereby limiting the loudness of the sound-generating device

Method used

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Embodiment Construction

[0040]The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0041] Please also see Figure 1-8 , the present invention provides a sound-generating device 100, which includes a frame 1, a vibration system 2 and a magnetic circuit system 3 respectively supported on the frame 1, the magnetic circuit system 3 has a magnetic gap 60, and the magnetic circuit The system 3 drives the vibration system 2 to vibrate and make sound.

[0042] The vibration system 2 includes an upper diaphragm 21 , a lower diaphragm 22 , a voice coi...

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Abstract

The invention provides a sound production device, which comprises a basin frame, a vibration system and a magnetic circuit system. The vibration system comprises an upper vibrating diaphragm, the upper vibrating diaphragm being fixed on the basin frame and defines an accommodating space together with the basin frame, and one side, far away from the magnetic circuit system, of the upper vibrating diaphragm being communicated with the outside and serving as an upper front cavity for the upper vibrating diaphragm to produce sound; an annular lower vibrating diaphragm, wherein the outer peripheralside of the lower vibrating diaphragm is fixed on the frame; an upper framework connected with the voice coil and the upper vibrating diaphragm, and a lower framework connected with the lower vibrating diaphragm; and an isolation diaphragm, the outer peripheral side of the isolation diaphragm being connected with the basin stand, and the inner peripheral side of the isolation diaphragm being connected with the upper framework and the lower framework. Compared with the prior art, the sound production device is higher in acoustic loudness and better in acoustic performance.

Description

【Technical field】 [0001] The invention relates to the field of electroacoustic conversion, in particular to a sound generating device used in electronic sound box products. 【Background technique】 [0002] The sound-generating device in the related art includes a pot frame, a vibration system fixed to the pot frame, and a magnetic circuit system with a magnetic gap. The magnetic circuit system drives the vibration system to vibrate and produce sound. The vibration system includes a The frame is used to vibrate and sound the diaphragm, the dome attached to the diaphragm is close to the skeleton on the side of the magnetic circuit system, and the sound is inserted in the magnetic gap and connected with the skeleton to drive the diaphragm to vibrate. lock up. [0003] However, in the sound-generating device of the related art, the vibration system and the magnetic circuit system are stacked up and down, and the structure of the magnetic circuit system is limited in the sound-ge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R9/02H04R9/06H04R7/12
CPCH04R7/125H04R9/02H04R9/025H04R9/06
Inventor 宋威张帆金鑫
Owner AAC TECH PTE LTD
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