CN204993827U - Loudspeaker module - Google Patents

Loudspeaker module Download PDF

Info

Publication number
CN204993827U
CN204993827U CN201520696139.4U CN201520696139U CN204993827U CN 204993827 U CN204993827 U CN 204993827U CN 201520696139 U CN201520696139 U CN 201520696139U CN 204993827 U CN204993827 U CN 204993827U
Authority
CN
China
Prior art keywords
hole
loud speaker
airtight chamber
closed chamber
speaker module
Prior art date
Application number
CN201520696139.4U
Other languages
Chinese (zh)
Inventor
韩丹
杨赟
霍新祥
Original Assignee
歌尔声学股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 歌尔声学股份有限公司 filed Critical 歌尔声学股份有限公司
Priority to CN201520696139.4U priority Critical patent/CN204993827U/en
Application granted granted Critical
Publication of CN204993827U publication Critical patent/CN204993827U/en

Links

Abstract

The utility model relates to a loudspeaker module is provided with before the intercommunication operatic tunes and constitutes the sound mouthful of sound circulation passageway with the preceding operatic tunes on the shell, still be provided with airtight chamber in the shell, airtight chamber communicates through first through -hole and sound circulation passageway, second through -hole and external intercommunication are passed through to airtight chamber. The utility model discloses a loudspeaker module, be in the same place with sound circulation passageway intercommunication in airtight chamber for last of the twelve earthly branches nurse hertz resonant cavity can be regarded as in airtight chamber, absorb in the sound circulation passageway or high frequency harmonic that vocal monomer itself produced, thereby the sound wave of partial high band is fallen in the filtering, and then the audio of promotion speaker, the volume in airtight chamber and the size of connecting airtight chamber through -hole have decided resonance frequency, but owing to receive the restriction of speaker size for the resonance frequency in airtight chamber is hardly changed through first through -hole. The utility model discloses a second through -hole and external intercommunication are passed through to airtight chamber for can adjust the absorption frequency in airtight chamber through the second through -hole.

Description

A kind of loud speaker module
Technical field
The utility model relates to sound-producing device field, more specifically, relates to a kind of loud speaker module.
Background technology
Loud speaker is the important acoustic element in electronic equipment, and it is a kind of energy transducer signal of telecommunication being changed into acoustical signal.Existing loud speaker module, comprises shell, and arranges acoustical generator monomer in the enclosure, and the inner chamber of housing is divided into the front operatic tunes isolated from one another, the rear operatic tunes by this acoustical generator monomer.The front operatic tunes is communicated with the phonate hole of loud speaker module, and the rear operatic tunes is enclosed construction, is in communication with the outside by means of only damping hole.
In existing loud speaker, especially for the loud speaker module spoken in side, because the sound passage of its front operatic tunes is longer, easily cause high-frequency resonant, FR curve shows as high frequency epirelief, even occur spike, also there is spike in harmonic distortion (THD), thus have impact on the acoustical behavior of loud speaker module under corresponding frequencies.
Utility model content
An object of the present utility model there is provided a kind of loud speaker module.
According to an aspect of the present utility model, provide a kind of loud speaker module, comprise shell, and be positioned at the sounding monomer of shell cavity volume, cavity volume is divided into the front operatic tunes isolated from one another, the rear operatic tunes by described sounding monomer; Described shell be provided with the operatic tunes before being communicated with and form the sound mouth of sound stream circulation passage with the front operatic tunes; Also be provided with closed chamber in described shell, described closed chamber is communicated with sound stream circulation passage by the first through hole, and wherein, described closed chamber is in communication with the outside by the second through hole.
Preferably, described first through hole is provided with at least one, and this at least one first through hole constitutes damping hole structure.
Preferably, the damping screen covering described first through hole is also provided with.
Preferably, described closed chamber is arranged on the sidewall of sound stream circulation passage.
Preferably, the sidewall of described closed chamber is provided with the extension extended to closed chamber inside, described second through hole runs through described extension along the length direction of extension.
Preferably, the length of described second through hole is greater than its internal diameter.
Preferably, described shell comprises the upper casing, the lower casing that snap together.
Preferably, described closed chamber and sound circulation passage are separated by the dividing plate be arranged in the front operatic tunes.
Preferably, described closed chamber is provided with multiple.
Preferably, described loud speaker module is speak loud speaker module in side.
Loud speaker module of the present utility model, closed chamber and sound circulation passage are connected together, make closed chamber can as last of the twelve Earthly Branches nurse hertz resonant cavity, absorb in sound stream circulation passage or sounding monomer itself produce high-frequency harmonic, thus filter out the sound wave of part high band, and then promote the audio of loud speaker; The volume of closed chamber and the size of connection closed chamber through hole determine resonance frequency, but owing to being subject to the restriction of speaker size, make the resonance frequency being difficult to be changed closed chamber by the first through hole.Closed chamber of the present utility model is in communication with the outside by the second through hole, makes it possible to the absorption frequency being regulated closed chamber by the second through hole.
By referring to the detailed description of accompanying drawing to exemplary embodiment of the present utility model, further feature of the present utility model and advantage thereof will become clear.
Accompanying drawing explanation
What form a part for specification drawings describes embodiment of the present utility model, and together with the description for explaining principle of the present utility model.
Fig. 1 is the profile of the utility model loud speaker module.
Fig. 2 is the explosive view of Fig. 1.
Fig. 3 is the structural representation of the utility model upper casing.
Embodiment
Various exemplary embodiment of the present utility model is described in detail now with reference to accompanying drawing.It should be noted that: unless specifically stated otherwise, otherwise positioned opposite, the numerical expression of the parts of setting forth in these embodiments and step and numerical value do not limit scope of the present utility model.
Illustrative to the description only actually of at least one exemplary embodiment below, never as any restriction to the utility model and application or use.
The technology and equipment known for person of ordinary skill in the relevant may not discuss in detail, but in the appropriate case, described technology and equipment should be regarded as a part for specification.
In all examples with discussing shown here, any occurrence should be construed as merely exemplary, instead of as restriction.Therefore, other example of exemplary embodiment can have different values.
It should be noted that: represent similar terms in similar label and letter accompanying drawing below, therefore, once be defined in an a certain Xiang Yi accompanying drawing, then do not need to be further discussed it in accompanying drawing subsequently.
With reference to figure 1, the utility model provides a kind of loud speaker module, and it comprises in shell and shell for holding the cavity volume of sounding monomer 3.This shell comprises the upper casing 2 and lower casing 1 that snap together, and wherein, the cavity volume of shell is divided into the front operatic tunes isolated from one another, the rear operatic tunes 4 by sounding monomer 3.Sounding monomer 3 comprises magnetic circuit system and vibrational system, and wherein magnetic circuit system comprises the frame being arranged in cavity volume, and is arranged in the magnet of frame, has gap, magnet is also provided with washer etc. between magnet and the sidewall of frame; Vibrational system comprises the vibrating diaphragm be fixed in cavity volume, and drives the voice coil loudspeaker voice coil of vibrating diaphragm sounding, and described voice coil loudspeaker voice coil is fixed on vibrating diaphragm, and is suspended in the gap of magnet and frame sidewall; The center of vibrating diaphragm is provided with ball top etc.When after voice coil loudspeaker voice coil energising, voice coil loudspeaker voice coil can vibrate under the effect of magnetic circuit system, and meanwhile, voice coil loudspeaker voice coil drives vibrating diaphragm together to vibrate, and realizes the sounding of vibrating diaphragm.Said structure belongs to the common practise of those skilled in the art, no longer illustrates at this.
Wherein, be provided with the sound mouth 11 of the operatic tunes before being communicated with on the housing, this sound mouth 11 together form sound stream circulation passage 5 with the front operatic tunes, and the sound that sounding monomer 3 sends through sound stream circulation passage 5, and spreads out of from sound mouth 11.
Loud speaker module of the present utility model, is also provided with the closed chamber 6 be communicated with sound stream circulation passage 5 in described shell.Particularly, this closed chamber 6 can be arranged on the sidewall of sound stream circulation passage 5, and further preferably, described closed chamber 6 and sound circulation passage 5 are separated, with reference to figure 2 by the dividing plate 12 be arranged in the front operatic tunes; Certainly, alternate manner well-known to those skilled in the art can also be adopted formed the closed chamber 6 be connected together with sound stream circulation passage 5.This closed chamber 6 is connected together with sound stream circulation passage 5 by the first through hole 7, and described closed chamber 6 is in communication with the outside by the second through hole 9.
Loud speaker module of the present utility model, closed chamber and sound circulation passage are connected together, make closed chamber can as last of the twelve Earthly Branches nurse hertz resonant cavity, absorb in sound stream circulation passage or sounding monomer itself produce high-frequency harmonic, thus filter out the sound wave of part high band, and then promote the audio of loud speaker; The volume of closed chamber and the size of connection closed chamber through hole determine resonance frequency, but owing to being subject to the restriction of speaker size, make the resonance frequency being difficult to be changed closed chamber by the first through hole.Closed chamber of the present utility model is in communication with the outside by the second through hole, makes it possible to the acoustic mass being regulated last of the twelve Earthly Branches nurse hertz resonant cavity by the second through hole, finally to regulate the absorption frequency of last of the twelve Earthly Branches nurse hertz resonant cavity.
The utility model one preferred embodiment in, described first through hole 7 is provided with at least one, and this at least one first through hole 7 can form damping hole structure, that is, at least one first through hole 7 can use as damping hole itself, to play the effect increasing acoustic resistance.The utility model another preferred embodiment in, be provided with the damping screen 8 covering described first through hole 7, can be reached by the density of damping adjusting net 8 and regulate the object of its acoustic resistance.
The utility model one preferred embodiment in, the sidewall of described closed chamber 6 is provided with the extension 10 extended to closed chamber 6 inside, described second through hole 9 runs through described extension 10 along the length direction of extension 10, this just makes the second through hole 9 have enough length, to increase acoustic resistance; Further preferably, the length of described second through hole 9 is greater than its internal diameter.By such structural design, adding the length of the second through hole 9, that is, improve the acoustic mass in last of the twelve Earthly Branches nurse hertz resonant cavity, by regulating length and the internal diameter of the second through hole 9, the object regulating closed chamber 6 resonance frequency can be reached.
In the execution mode that the utility model one is concrete, extension 10 is arranged on for surrounding the position of closed chamber 6 in upper casing 2, with reference to figure 3.Certainly, for a person skilled in the art, extension 10 also can be arranged on lower casing 1 for surrounding the position of closed chamber 6.
Loud speaker module of the present utility model, is preferably the loud speaker module of speaking side, and that is, the sound mouth 11 of loud speaker module is arranged on the sidepiece of shell, and the speak structure of loud speaker module of this side belongs to the common practise of those skilled in the art.Because the speak sound stream circulation passage of loud speaker module of side is longer, easily cause high-frequency resonant.Therefore the closed chamber arranged can absorb the high-frequency resonant of generation well.Wherein, in order to reach better assimilation effect, this closed chamber can arrange multiple, is jointly absorbed the high-frequency harmonic of generation by multiple closed chamber.
Although be described in detail specific embodiments more of the present utility model by example, it should be appreciated by those skilled in the art, above example is only to be described, instead of in order to limit scope of the present utility model.It should be appreciated by those skilled in the art, when not departing from scope and spirit of the present utility model, above embodiment can be modified.Scope of the present utility model is limited by claims.

Claims (10)

1. a loud speaker module, is characterized in that: comprise shell, and is positioned at the sounding monomer (3) of shell cavity volume, and cavity volume is divided into the front operatic tunes isolated from one another, the rear operatic tunes (4) by described sounding monomer (3); Described shell be provided with the operatic tunes before being communicated with and form the sound mouth (11) of sound stream circulation passage (5) with the front operatic tunes; Closed chamber (6) is also provided with in described shell, described closed chamber (6) is communicated with sound stream circulation passage (5) by the first through hole (7), wherein, described closed chamber (6) is in communication with the outside by the second through hole (9).
2. loud speaker module according to claim 1, is characterized in that: described first through hole (7) is provided with at least one, and this at least one first through hole (7) constitutes damping hole structure.
3. loud speaker module according to claim 1, is characterized in that: be also provided with the damping screen (8) covering described first through hole (7).
4. loud speaker module according to claim 1, is characterized in that: described closed chamber (6) is arranged on the sidewall of sound stream circulation passage (5).
5. loud speaker module according to claim 4, it is characterized in that: the sidewall of described closed chamber (6) is provided with the extension (10) extended to closed chamber (6) inside, described second through hole (9) runs through described extension (10) along the length direction of extension (10).
6. loud speaker module according to claim 5, is characterized in that: the length of described second through hole (9) is greater than its internal diameter.
7. loud speaker module according to claim 6, is characterized in that: described shell comprises the upper casing (2), the lower casing (1) that snap together.
8. loud speaker module according to claim 6, is characterized in that: described closed chamber (6) and sound circulation passage (5) are separated by the dividing plate be arranged in the front operatic tunes (12).
9. loud speaker module according to claim 8, is characterized in that: described closed chamber (6) is provided with multiple.
10. loud speaker module according to claim 1, is characterized in that: described loud speaker module is speak loud speaker module in side.
CN201520696139.4U 2015-09-09 2015-09-09 Loudspeaker module CN204993827U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520696139.4U CN204993827U (en) 2015-09-09 2015-09-09 Loudspeaker module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520696139.4U CN204993827U (en) 2015-09-09 2015-09-09 Loudspeaker module

Publications (1)

Publication Number Publication Date
CN204993827U true CN204993827U (en) 2016-01-20

Family

ID=55128145

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520696139.4U CN204993827U (en) 2015-09-09 2015-09-09 Loudspeaker module

Country Status (1)

Country Link
CN (1) CN204993827U (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107820195A (en) * 2017-10-10 2018-03-20 歌尔股份有限公司 The manufacture method and sound-producing device module of a kind of sound-producing device module
WO2019000539A1 (en) * 2017-06-26 2019-01-03 歌尔科技有限公司 Loudspeaker module and electronic device
WO2019000538A1 (en) * 2017-06-26 2019-01-03 歌尔科技有限公司 Speaker module and electronic device
WO2019019325A1 (en) * 2017-07-28 2019-01-31 歌尔股份有限公司 Loudspeaker module and electronic apparatus
CN110035359A (en) * 2018-12-30 2019-07-19 瑞声科技(新加坡)有限公司 Microphone device
CN110166895A (en) * 2018-02-13 2019-08-23 许丽莲 The ultralow audio frequency sound wave generation device of suction strainer noise
CN110248293A (en) * 2018-03-09 2019-09-17 苹果公司 The acoustic cavity and related system and method suppressed using multiple resonant cavities
CN111031416A (en) * 2019-11-25 2020-04-17 歌尔股份有限公司 Loudspeaker module and electronic device
WO2020228472A1 (en) * 2019-05-15 2020-11-19 维沃移动通信有限公司 Loudspeaker and terminal device

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019000539A1 (en) * 2017-06-26 2019-01-03 歌尔科技有限公司 Loudspeaker module and electronic device
WO2019000538A1 (en) * 2017-06-26 2019-01-03 歌尔科技有限公司 Speaker module and electronic device
WO2019019325A1 (en) * 2017-07-28 2019-01-31 歌尔股份有限公司 Loudspeaker module and electronic apparatus
CN107820195A (en) * 2017-10-10 2018-03-20 歌尔股份有限公司 The manufacture method and sound-producing device module of a kind of sound-producing device module
CN107820195B (en) * 2017-10-10 2021-02-12 歌尔股份有限公司 Manufacturing method of sound production device module and sound production device module
CN110166895A (en) * 2018-02-13 2019-08-23 许丽莲 The ultralow audio frequency sound wave generation device of suction strainer noise
CN110248293A (en) * 2018-03-09 2019-09-17 苹果公司 The acoustic cavity and related system and method suppressed using multiple resonant cavities
CN110035359B (en) * 2018-12-30 2021-01-15 瑞声科技(新加坡)有限公司 Sound production device
CN110035359A (en) * 2018-12-30 2019-07-19 瑞声科技(新加坡)有限公司 Microphone device
WO2020228472A1 (en) * 2019-05-15 2020-11-19 维沃移动通信有限公司 Loudspeaker and terminal device
CN111031416A (en) * 2019-11-25 2020-04-17 歌尔股份有限公司 Loudspeaker module and electronic device

Similar Documents

Publication Publication Date Title
US10085086B2 (en) Resonance damping for audio transducer systems
CN206674192U (en) Microspeaker
US9467784B2 (en) Piezoelectric-type speaker
TWI244303B (en) Resonation chambers within a cell phone
CN103118320B (en) A kind of ultrathin loudspeaker module
CN104754454B (en) Loudspeaker mould group
CN103079162B (en) Integrated loud speaker, speaker and its manufacturing method
CN201422146Y (en) Multifunctional loudspeaker
KR200487541Y1 (en) Microphone-and-sound-box integrated apparatus
US10469953B2 (en) Speaker box
CN201608881U (en) Multifunctional miniature loudspeaker
CN105516870A (en) Loudspeaker module
KR20110016802A (en) Earphone
CN103686550A (en) Loudspeaker module group
CN203574855U (en) Loudspeaker module
US10250961B2 (en) Speaker module
JP3163869U (en) Loudspeaker
CN203984671U (en) Loud speaker module
CN202004956U (en) Acoustic generator
US9918166B2 (en) Speaker
CN107360517A (en) Loudspeaker enclosure
CN203104578U (en) A mobile communication device and a sounding device thereof
US9386375B2 (en) Miniature speaker
US9674613B2 (en) Speaker box
CN201657291U (en) Multifunctional mini speaker

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee
CP01 Change in the name or title of a patent holder

Address after: 261031 Dongfang Road, Weifang high tech Development Zone, Shandong, China, No. 268

Patentee after: Goertek Inc.

Address before: 261031 Dongfang Road, Weifang high tech Development Zone, Shandong, China, No. 268

Patentee before: Goertek Inc.