Sound production device, and portable terminal
A sounding device and end face technology, which is applied to sensor parts, speaker transducer fixing, sensors, etc., can solve the problems of large size and difficulty in wide application of two-way sounding sounding devices, and achieve the effect of small size
Active Publication Date: 2018-09-21
GOERTEK INC
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Problems solved by technology
[0004] The main purpose of the present invention is to provide a sounding device, which aims to solve the technical problem that the existing sounding device for realizing two-way sounding is difficult to be widely used due to its large volume
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[0048] 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 part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0049] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.
[0050] In the present in...
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The invention discloses a sound production device, and a portable terminal. The sound production device comprises: a first vibration system, wherein the first vibration system comprises a skeleton voice coil, the skeleton voice coil is arranged on the inner side of a first diaphragm, the skeleton voice coil is fixedly connected with the first diaphragm, the skeleton voice coil comprises a skeleton, and a voice coil main body formed by twining a voice coil lead on the skeleton, and one end of the skeleton away from the first diaphragm at least partially protrudes from the voice coil main body;a second vibration system comprising a second diaphragm arranged to be opposite to the first diaphragm; and a magnetic circuit system arranged between the first diaphragm and the second diaphragm, wherein the magnetic circuit system is provided with an evasion portion; and one end of the skeleton away from the first diaphragm can movably penetrate through the evasion portion and is fixedly connected with the second diaphragm. According to the sound production device disclosed by the invention, the volume occupied by a structure for realizing two-way sound production is small, so that the soundproduction device can be widely applied to portable terminals.
Description
technical field [0001] The invention relates to the technical field of sound and electricity, in particular to a sound generating device and a portable terminal using the sound generating device. Background technique [0002] At present, a loudspeaker, as an important part of a terminal with an audio playback function, has been widely used. Some terminals, especially portable terminals, such as mobile phones, tablet computers, and earphones can provide very limited installation space for speakers. Therefore, existing speakers that can be applied to narrow installation spaces usually adopt a single-diaphragm front-firing structure. [0003] In order to realize two-way sounding, a speaker using two sets of voice coils and a magnetic circuit system has appeared in the prior art. Due to its own structural design, this speaker is usually relatively large in size. For existing portable terminals with a small installation space It is said that this type of loudspeaker design is di...
Claims
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IPC IPC(8): H04R9/06H04R9/02
CPCH04R9/025H04R9/06H04R2400/11H04R1/2834H04R31/003H04R7/20H04R2499/11H04R1/345H04R1/025H04R1/06H04R7/04H04R7/18H04R9/046
Inventor 王兴龙王建建徐同雁刘春发
Owner GOERTEK INC