Goertek Inc.

Yun Yang

Dan Han

Gang Chen

Xinxiang Huo

Shuangshuang Fan

Hongwei Du

Zhenjun Li

Zhijun Sun

Xudong Liu

The present invention discloses a speaker module, comprising a housing and a speaker unit located in an inner cavity of the housing and dividing the inner cavity into a front acoustic cavity and a rear acoustic cavity separated from each other, wherein the housing is additionally provided with a pressure relief device configured to communicate the rear acoustic cavity with an external environment and implement an acoustic seal, the pressure relief device comprises a pressure relief hole extending through a thickness direction of the housing and provided with a gland on one side close to the rear acoustic cavity, and a pressure relief groove is disposed at a surface of the gland close to the pressure relief hole, one end of the pressure relief groove is connected with the pressure relief hole, the other end of the pressure relief groove is led out of an end of the gland, and the pressure relief groove and the pressure relief hole together make up a pressure relief passage of the rear acoustic cavity. The pressure relief grooves of the pressure relief devices of the speaker modules are arranged on the gland, which makes processing easier and can effectively improve the yield of the speaker module.

Speaker module

The present invention provides a blocking piece covering the sound hole of a loudspeaker and an assembling method thereof, and a loudspeaker module. The blocking piece covering the sound hole of the loudspeaker module is arranged at a position where the sound hole is located on the case of the loudspeaker module and covers the sound hole. The blocking piece is made of a nonmetallic flexible net. The nonmetallic net-shaped blocking piece and the case are formed integrally by injection moulding. The loudspeaker module and the blocking piece covering the sound hole thereof in the present invention have advantages of good acoustic performance, high reliability, high space utilization rate and high production efficiency. The assembling method for the blocking piece covering the sound hole of the loudspeaker module further makes the assembling of the blocking piece convenient for operation, and improves the assembling efficiency and assembling quality.

Shutter covered on sound hole of loudspeaker module and assembling method thereof, loudspeaker module

Disclosed is a loudspeaker module, comprising a module housing and a single loudspeaker; a module inner cavity configured to receive the single loudspeaker is formed in the module housing; and the module housing comprises a module upper housing and a module lower housing, the module upper housing is arranged at the outer side of a front cover of the single loudspeaker, the module upper housing is provided with a metal sheet in an injection molding manner, and a grounding terminal configured to be in grounding connection with an application terminal of the loudspeaker module is led out from the metal sheet. The loudspeaker module of the present invention not only is aiding in thinning, but also can ensure the matching stability between a loudspeaker and an application terminal.

Loudspeaker module

A loudspeaker module, comprising a housing, and a sounding unit located in an inner cavity of the housing. The sounding unit partitions the inner cavity into a front acoustic cavity and a rear acoustic cavity isolated from each other, a sound hole communicated with the front acoustic cavity being further provided on the housing. The loudspeaker module further comprises a pressure relief channel which communicates the front acoustic cavity with the rear acoustic cavity and is acoustically sealed. The loudspeaker module of the present invention is provided with the pressure relief channel which communicates the front acoustic cavity with the rear acoustic cavity, and the pressure relief channel is acoustically sealed, such that a sound in the front (rear) acoustic cavity cannot be propagated into the rear (front) acoustic cavity so as not to cause an acoustic short circuit; and the rear acoustic cavity is communicated with the front acoustic cavity by means of the pressure relief channel, such that the rear acoustic cavity can balance the air pressure by means of the front acoustic cavity communicated with the outside. The present invention also relates to a terminal device comprising the loudspeaker module. The waterproof effect of the terminal device is good.

Loudspeaker module and terminal device

Disclosed in the present invention is a speaker module. The speaker module comprises a housing, and a speaker unit located within the inner chamber of the housing. The speaker unit separates the inner chamber into a front sound chamber and a rear sound chamber which are isolated from each other. The housing is embedded with a metal sheet, the metal sheet being provided with a pressure relief hole which is acoustically sealed and used for communicating a rear sound chamber and the external environment. The pressure relief hole is provided with a mesh on the side away from the rear sound chamber. The speaker module provided by the present invention has a housing embedded with a metal sheet, the metal sheet being provided with a pressure relief hole. The inner diameter of the pressure relief hole can be made small according to actual needs. The rear sound chamber and the external environment can reach an air pressure balance and have good acoustic seal effect without additional arrangement of pressure relief groove. Furthermore, the pressure relief hole of the speaker module does not need a gland. The structure is simple and the yield rate is high.

A protective apparatus for sound-absorbing particles () in a sounding apparatus, comprising a housing () and a rear acoustic cavity formed inside the housing (). The rear acoustic cavity is filled with sound-absorbing particles (). A sound circulation channel () communicating the rear acoustic cavity with the outside is provided on the housing (). A sound transmission layer () used for preventing the sound-absorbing particles () from being exposed covers an entrance of the sound circulation channel (). The sound transmission layer () of the protective apparatus separates the sound circulation channel () from the rear acoustic cavity, such that airflow in the rear acoustic cavity passes through the sound transmission layer () and then flows out of the sound circulation channel (). Configuration of the sound transmission layer () can hinder the sound-absorbing particles (), prevent the sound-absorbing particles () from entering the sound circulation channel (), and do not influence outflow of airflow. The problem in the prior art that sound-absorbing particles () are easily exposed or block a sound circulation channel () is solved, and the quality of a sounding apparatus is ensured.

Protective apparatus for sound-absorbing particles in sounding apparatus

Disclosed is a loudspeaker module, comprising a shell, wherein a vibrating system and a magnetic circuit system are accommodated in the shell, the vibrating system comprises a vibrating diaphragm and a voice coil which are combined together; a whole inner cavity of the module is divided by the vibrating diaphragm into two cavities, i.e. a front voice cavity and a rear voice cavity; an edge portion of the vibrating diaphragm is fixed on the shell by using an annular supporting member, a plurality of cavity expansion portions formed by incomplete filling are distributed on the supporting member at intervals, and each of the cavity expansion portions is communicated with the rear voice cavity. The loudspeaker module of the present disclosure solves the technical problem of F0 rising due to the narrow rear voice cavity of the loudspeaker module in the prior art.

The present invention discloses a speaker device and electronic equipment. The speaker device comprises a speaker body, an audio signal input terminal connected with the speaker body, and a DC voltage signal input terminal connected with the speaker body. The electronic equipment comprises the speaker device and a DC voltage signal output circuit. The present invention further discloses a method for reducing a low frequency distortion degree of the speaker of the electronic equipment, and the method is realized by additionally providing a DC voltage signal to the input end of the speaker. In the present invention, a distortion degree of the speaker device at a low-frequency working condition can be reduced, and inconsistency of low frequency distortion of the speaker device, caused by mass production, can be reduced.

Speaker device and method for reducing distortion degree of speaker

Disclosed is a micro speaker, comprising a vibration system, a magnetic circuit system and a support system; the vibration system comprises a vibrating diaphragm; a dodging groove is provided on a dome portion of the vibrating diaphragm opposite to a groove structure of an upper housing; the depth of the dodging groove is not less than that of the groove structure; an orthographic projection area of the dodging groove covers that of the groove structure; a dodging structure is provided on a washer of the magnetic circuit system opposite to the dodging groove; the depth of the dodging structure is not less than that of the dodging groove; and the orthographic projection area of the dodging structure covers that of the dodging groove. This structure ensures the normal operation of a product and acoustic performance of a micro speaker while preventing collision of components.

Micro speaker

A blocking piece covering the sound hole of a loudspeaker module may be arranged at a position where the sound hole is located on the case of the loudspeaker module and covers the sound hole. The blocking piece may be made of a nonmetallic flexible net. The nonmetallic net-shaped blocking piece and the case may be formed integrally by injection molding. The loudspeaker module and the blocking piece covering the sound hole thereof in the present invention may provide good acoustic performance, high reliability, high space utilization rate and/or high production efficiency. The assembling method for the blocking piece covering the sound hole of the loudspeaker module further makes the assembling of the blocking piece convenient for operation, and improves the assembling efficiency and assembling quality.

An ultrathin speaker module, comprising: a casing provided with a sound hole thereon; a speaker unit comprising a diaphragm; a first separating wall provided with a diaphragm accommodating hole, wherein the diaphragm is fixed in the diaphragm accommodating hole, and the first separating wall and the diaphragm separate the internal space of the casing into an upper space and a lower space; and a second separating wall, which separates the upper space into one first upper cavity and at least one second upper cavity, wherein the first upper cavity comprises the diaphragm and forms a front acoustic cavity, and the front acoustic cavity is in communication with the outside through the sound hole on the casing; and the at least one second upper cavity is in communication with the lower space through a through hole on the first separating wall, and forms a rear acoustic cavity.

Growing community of inventors

Weifang, China

Yun Yang