CN103945299A - Miniature loudspeaker system and electronic equipment - Google Patents
Miniature loudspeaker system and electronic equipment Download PDFInfo
- Publication number
- CN103945299A CN103945299A CN201410106929.2A CN201410106929A CN103945299A CN 103945299 A CN103945299 A CN 103945299A CN 201410106929 A CN201410106929 A CN 201410106929A CN 103945299 A CN103945299 A CN 103945299A
- Authority
- CN
- China
- Prior art keywords
- microspeaker
- sound
- back cavity
- chamber
- guide tube
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Landscapes
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Abstract
The invention provides a miniature loudspeaker system and electronic equipment. The miniature loudspeaker system comprises a miniature loudspeaker, a front cavity formed in the front portion of the miniature loudspeaker and a rear cavity formed in the rear portion of the miniature loudspeaker. A plurality of sound cavities are formed in the rear cavity. The miniature loudspeaker system further comprises a sound guide component arranged in the rear cavity or outside the rear cavity. The sound cavities are communicated through the sound guide component. According to the miniature loudspeaker system, under the condition that the total size of the miniature loudspeaker system is not changed, the resonant frequency can be effectively lowered, so that the electronic equipment with the miniature loudspeaker system has a good sound effect.
Description
Technical field
The present invention relates to loudspeaker techniques field, especially, relate to a kind of Microspeaker system and there is the electronic equipment of this Microspeaker system.
Background technology
Along with the development of electronic technology, the electronic device design such as mobile phone, panel computer, notebook computer, panel TV, game machine terminal more and more frivolous portable, thickness and the volume of those electronic products are more and more less, more and more less to cause leaving for the volume of speaker system in electronic equipment, like this, Microspeaker system is more and more applied in electronic equipment.
Existing Microspeaker system generally includes Microspeaker, one and is positioned at the ante-chamber of Microspeaker front portion and one and is positioned at the back cavity at Microspeaker rear portion.Because the resonance frequency (Fo) of speaker system is mainly the equivalent acoustic capacitance C by back cavity
rear sound chamber, speaker system equivalence compliance equivalent sound along C
aS, speaker system equivalent sound mass M
aSdetermine,
，
Therefore, overall volume volume less, especially back cavity at Microspeaker is also less, the resonance frequency of Microspeaker is higher, therefore can affect the acoustics of electronic equipment, under the structure of current this Microspeaker system, want that the resonance frequency and the good acoustics that reach lower are more difficult.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of Microspeaker system and has the electronic equipment of this Microspeaker system, the in the situation that of the constancy of volume of Microspeaker entire system, can there is lower resonance frequency, and then there is more graceful acoustics.
In order to address the above problem, the invention provides a kind of Microspeaker system, the ante-chamber that comprise Microspeaker, is arranged at Microspeaker front portion and the back cavity that is arranged at Microspeaker rear portion, wherein, multiple rear sounds chamber is set in described back cavity, described Microspeaker system also comprises leading note parts, and described leading note parts are arranged at back cavity inside or back cavity outside, and multiple rear sounds chamber is connected by described leading note parts.
Further, in described back cavity, arrange two after sound chamber, described leading note parts are a sound guide tube, described sound guide tube is arranged at the middle part of described back cavity.
Further, in described back cavity, arrange two after sound chamber, described leading note parts are a sound guide tube, described sound guide tube is arranged at the outside of rear cavity rear end.
Further, the resonance frequency of Microspeaker system is:
Wherein, F
ofor resonance frequency, C
aB1for the equivalent acoustic capacitance in rear sound chamber 1, C
aB2for the equivalent acoustic capacitance in rear sound chamber 2, C
aSfor the equivalent sound of Microspeaker system suitable, M
aSfor the equivalent sound quality of Microspeaker system, M
aRfor the radiated sound quality of the diaphragm of loudspeaker, M
aR1for the equivalent sound quality of sound guide tube.
Further, in described back cavity, arrange two after sound chamber, described leading note parts are three or five sound guide tubes, described sound guide tube is cascaded and is arranged at the rear end of described back cavity.
Further, in described back cavity, arrange three after sound chamber, described leading note parts are two sound guide tubes that arrange separately, described sound guide tube is arranged at middle part or the middle and lower part of back cavity.
Further, the cross section of described sound guide tube is circular, square or other regular shapes.
On the other hand, also provide a kind of electronic equipment, comprised above-mentioned arbitrary described Microspeaker system.
Compared with prior art, a technical scheme in technique scheme has the following advantages:
In the embodiment of Microspeaker system of the present invention and electronic equipment, can be the in the situation that of the constancy of volume of Microspeaker entire system, by cavity configuration after change Microspeaker, by multiple rear sounds chamber is set in back cavity, in back cavity or back cavity sound conducting part part is set outward, can effectively reduce the resonance frequency of Microspeaker system, make it have more graceful acoustics, and then promote the acoustics of electronic equipment with this Microspeaker system, and further improve the market competitiveness of this electronic equipment.
brief description of the drawings
Fig. 1 is the structural representation of Microspeaker system embodiment one of the present invention;
Fig. 2 is the structural representation of Microspeaker system embodiment two of the present invention;
Fig. 3 is the part schematic diagram of the frequency response curve simulation comparison of Microspeaker system of the present invention and prior art Microspeaker system;
Fig. 4 is the structural representation of Microspeaker system embodiment three of the present invention;
Fig. 5 is the structural representation of Microspeaker system embodiment four of the present invention.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Microspeaker system provided by the invention comprises Microspeaker, is arranged at the ante-chamber and the back cavity that is arranged at Microspeaker rear portion of Microspeaker front portion.Wherein, multiple rear sounds chamber is set in back cavity.
In this Microspeaker system, be also provided with leading note parts, multiple rear sounds chamber is connected by leading note parts.Wherein, can be according to actual needs (such as the difference of the situations such as the size of different electronic equipments, electronic equipment), leading note parts are arranged to back cavity inside or back cavity outside.
Due to the small volume of the back cavity of Microspeaker system, can make the resonance frequency of Microspeaker system higher, and then have influence on Microspeaker produce acoustics, in order to improve above-mentioned deficiency, by multiple rear sounds chamber is set in back cavity, the leading note parts in sound chamber after can being communicated with are set simultaneously in back cavity, and back cavity is divided into multiple parts, so, the parameter of calculating the resonance frequency of Microspeaker system will increase the parameter of multiple rear sound chambeies and leading note parts, thereby reach the resonance frequency that reduces Microspeaker system, improve the acoustics of the electronic equipment with this Microspeaker system.
Referring to Fig. 1, it is the structural representation of Microspeaker system embodiment one of the present invention.In this embodiment, Microspeaker system comprises Microspeaker 10, is arranged at the ante-chamber (not shown) of Microspeaker front portion and is arranged at the back cavity 11 at Microspeaker rear portion.In back cavity 11, arrange two after sound chamber, can be the first rear sound chamber 111 and the second rear sound chamber 112, and leading note parts can be a sound guide tube 12, this sound guide tube 12 is arranged at the middle part of back cavity 11 and the first rear sound chamber 111 is connected with the second rear sound chamber 112.
Wherein, the cross section of sound guide tube can be circle, square or other regular shapes, and in the present embodiment, the cross section of this sound guide tube can be circle.
In this embodiment, back cavity is roughly divided into three parts, i.e. the first rear sound chamber, the second rear sound chamber and sound guide tube, this kind of structure, can make the relevant parameter of the first rear sound chamber, the second rear sound chamber and sound guide tube all will have influence on the resonance frequency of Microspeaker system, known according to the computing formula of resonance frequency, due to the impact of above-mentioned relevant parameter, can reduce the resonance frequency of Microspeaker system, thereby improve the acoustics of the electronic equipment with this Microspeaker system.
Referring to Fig. 2, it is the structural representation of Microspeaker system embodiment two of the present invention.In this embodiment, Microspeaker system comprises Microspeaker 20, is arranged at the ante-chamber (not shown) of Microspeaker front portion and is arranged at the back cavity 21 at Microspeaker rear portion.In back cavity 21, arrange two after sound chamber, can be the 3rd rear sound chamber 211 and the 4th rear sound chamber 212.
In this embodiment, leading note parts can be a sound guide tube 22, and this sound guide tube 22 is arranged to the outside of back cavity 21 rear ends and the 3rd rear sound chamber 211 and the 4th rear sound chamber 212 are connected.
Wherein, the cross section of sound guide tube can be circle, square or other regular shapes, and in the present embodiment, the cross section of sound guide tube can be square.
In this embodiment, back cavity is roughly divided into two parts, i.e. the 3rd rear sound chamber and the 4th rear sound chamber, also increased a sound guide tube that can be communicated with the 3rd rear sound chamber and the 4th rear sound chamber in back cavity outside, this kind of structure, make equally the relevant parameter of the 3rd rear sound chamber, the 4th rear sound chamber and sound guide tube can have influence on the resonance frequency of Microspeaker system, known according to the computing formula of resonance frequency, due to the impact of above-mentioned relevant parameter, can reduce the resonance frequency of Microspeaker, thereby improve the acoustics of the electronic equipment with this Microspeaker system.
In embodiment mono-and embodiment bis-, the resonance frequency of Microspeaker system can be calculated by following formula:
Wherein, F
ofor resonance frequency, C
aB1for the equivalent acoustic capacitance in rear sound chamber 1, C
aB2for the equivalent acoustic capacitance in rear sound chamber 2, C
aSfor the equivalent sound of Microspeaker system suitable, M
aSfor being the equivalent sound quality of Microspeaker system, M
aRfor the radiated sound quality of the diaphragm of loudspeaker, M
aR1for the equivalent sound quality of sound guide tube.
Concrete, in the first embodiment, C
aB1can be the equivalent acoustic capacitance in the first rear sound chamber, C
aB2can be the equivalent acoustic capacitance in the second rear sound chamber; In a second embodiment, C
aB1can be the equivalent acoustic capacitance in the 3rd rear sound chamber, C
aB2can be the equivalent acoustic capacitance in the 4th rear sound chamber.
Further, can be referring to shown in Fig. 3, be the part schematic diagram of the frequency response curve simulation comparison of Microspeaker system of the present invention and prior art Microspeaker system.
In this simulation comparison, Microspeaker system of the present invention can be made as to the first speaker system, prior art Microspeaker system is made as the second speaker system, and the parameter of the first speaker system is consistent with the parameter of the second speaker system.
Wherein, the back cavity of the first speaker system comprises rear sound chamber 1, rear sound chamber 2 and sound guide tube, and the volume in rear sound chamber 1 is 0.22 cubic centimetre, the volume in rear sound chamber 2 is 0.2 cubic centimetre, leading note parts are that a cross section is circular sound guide tube, and it is of a size of: 2.2 millimeters of diameters, 32 millimeters of length; The volume of the back cavity of the second speaker system is 0.5 cubic centimetre.
In Fig. 3, curve 31 is the emulation frequency response curve of the first speaker system, and curve 32 is the emulation frequency response curve of the second speaker system, and longitudinal scale represents sound pressure level, and unit is dB, and laterally scale represents frequency, and unit is Hz.
By finding out referring to Fig. 3, adopt Microspeaker system of the present invention, namely the first speaker system has been expanded the response of low-frequency range aspect frequency response, has promoted the output acoustic pressure of low-frequency range, has reached the object of expansion low-frequency response.
Further, referring to Fig. 4, be the structural representation of Microspeaker system embodiment three of the present invention.In this embodiment, Microspeaker system comprises Microspeaker 40, is arranged at the ante-chamber (not shown) of Microspeaker front portion and is arranged at the back cavity 41 at Microspeaker rear portion.In back cavity 21, arrange two after sound chamber, can be the 5th rear sound chamber 411 and the 6th rear sound chamber 412.
In this embodiment, leading note parts can be three sound guide tubes 42, and these three sound guide tubes 42 are cascaded and are arranged at the rear end of back cavity 41, these three sound guide tubes 42 form leading note parts the 5th rear sound chamber 411 is connected with the 6th rear sound chamber 412.
Wherein, the cross section of this sound guide tube can be circle, square or other regular shapes, and in the present embodiment, the cross section of sound guide tube can be circle.
In addition, in another embodiment, the setting in rear sound chamber is identical with the structure of tri-kinds of embodiment, and different is that leading note parts can be five sound guide tubes, these five sound guide tubes are cascaded and are arranged at the rear end of back cavity, and the leading note parts of these five sound guide tubes compositions are connected sound chamber after two.
In these two embodiment, back cavity is roughly divided into three parts, i.e. the 5th rear sound chamber, the 6th rear sound chamber and have three (or five) sound guide tubes composition leading note parts, this kind of structure, can make the 5th rear sound chamber, the 6th rear sound chamber and three (five) relevant parameters of sound guide tube can have influence on the resonance frequency of Microspeaker, known according to the computing formula of resonance frequency, due to the impact of above-mentioned relevant parameter, can reduce the resonance frequency of Microspeaker system, thereby improve the acoustics of the electronic equipment with this Microspeaker system.
Referring to Fig. 5, it is the structural representation of Microspeaker system embodiment four of the present invention.In this embodiment, Microspeaker system comprises Microspeaker 50, is arranged at the ante-chamber (not shown) of Microspeaker front portion and is arranged at the back cavity 51 at Microspeaker rear portion.In back cavity 51, arrange three after sound chamber, can be the 7th rear sound chamber 511, the 8th rear sound chamber 512 and the 9th rear sound chamber 513.
In this embodiment, leading note parts can comprise two independent sound guide tubes 521,522 that arrange, and sound guide tube 521 can be arranged at the middle part of back cavity 51, and sound guide tube 522 can be arranged at the middle and lower part of back cavity 51.Wherein, sound guide tube 521 is connected the 7th rear sound chamber 511 with the 8th rear sound chamber 512, and sound guide tube 522 is connected the 8th rear sound chamber 512 with the 9th rear sound chamber 513.In this embodiment, the cross section of this sound guide tube can be set to circle.
In this embodiment, back cavity roughly divides quinquepartite, i.e. the 7th rear sound chamber, the 8th rear sound chamber, the 9th rear sound chamber and two sound guide tubes, this kind of structure, can make sound chamber after three and two sound guide tube relevant parameters can have influence on the resonance frequency of Microspeaker, known according to the computing formula of resonance frequency, due to the impact of above-mentioned relevant parameter, can reduce the resonance frequency of Microspeaker system, thereby improve the acoustics of the electronic equipment with this Microspeaker system.
Above embodiment, only describe as an example of sound chamber behind sound chamber after arranging two, three example, describe as example taking the cross section of a sound guide tube, three sound guide tubes and sound guide tube as circular, square, not the quantity to rear sound chamber and quantity and the shape of sound guide tube limit, those skilled in the art can be according to actual needs, quantity to rear sound chamber, the quantity of sound guide tube and shape are selected, are arranged, and its principle is the same with above-described embodiment, is not repeated herein.
From above-described embodiment, Microspeaker system in the embodiment of the present invention, can be the in the situation that of the constancy of volume of Microspeaker entire system, by cavity configuration after change Microspeaker, by multiple rear sounds chamber is set in back cavity, in back cavity or back cavity sound conducting part part is set outward, to make Microspeaker system can there is lower resonance frequency, make it have more graceful acoustics, and then make the electronic equipment with this Microspeaker system there is good acoustics, further improve the market competitiveness of the electronic equipment with this Microspeaker system.
Further, the present invention also provides a kind of electronic equipment, and this electronic equipment comprises the Microspeaker system in above-mentioned arbitrary embodiment.Wherein, electronic equipment can be mobile phone, panel computer, notebook computer, panel TV, game machine terminal etc.Visible, Microspeaker system of the present invention can be widely used in electronic equipment frivolous, pocket.
Each embodiment in this specification all adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment, between each embodiment identical similar part mutually referring to.
Above to a kind of Microspeaker system provided by the present invention and electronic equipment, be described in detail, applied specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment is just for helping to understand method of the present invention and core concept thereof; , for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention meanwhile.
Claims (8)
1. a Microspeaker system, the ante-chamber that comprise Microspeaker, is arranged at Microspeaker front portion and the back cavity that is arranged at Microspeaker rear portion, is characterized in that, multiple rear sounds chamber is set in described back cavity,
Described Microspeaker system also comprises leading note parts, and described leading note parts are arranged at back cavity inside or back cavity outside, and multiple rear sounds chamber is connected by described leading note parts.
2. Microspeaker system as claimed in claim 1, is characterized in that, in described back cavity, arrange two after sound chamber, described leading note parts are a sound guide tube, described sound guide tube is arranged at the middle part of described back cavity.
3. Microspeaker system as claimed in claim 1, is characterized in that, in described back cavity, arrange two after sound chamber, described leading note parts are a sound guide tube, described sound guide tube is arranged at the outside of rear cavity rear end.
4. Microspeaker system as claimed in claim 2 or claim 3, is characterized in that, the resonance frequency of Microspeaker system is:
Wherein, F
ofor resonance frequency, C
aB1for the equivalent acoustic capacitance in rear sound chamber 1, C
aB2for the equivalent acoustic capacitance in rear sound chamber 2, C
aSfor the equivalent sound of Microspeaker system suitable, M
aSfor being the equivalent sound quality of Microspeaker system, M
aRfor the radiated sound quality of the diaphragm of loudspeaker, M
aR1for the equivalent sound quality of sound guide tube.
5. Microspeaker system as claimed in claim 1, is characterized in that, in described back cavity, arrange two after sound chamber, described leading note parts are three or five sound guide tubes, described sound guide tube is cascaded and is arranged at the rear end of described back cavity.
6. Microspeaker system as claimed in claim 1, is characterized in that, in described back cavity, arrange three after sound chamber, described leading note parts are two sound guide tubes that arrange separately, described sound guide tube is arranged at middle part or the middle and lower part of back cavity.
7. the Microspeaker system as described in claim 4 or 5 or 6, is characterized in that, the cross section of described sound guide tube is circular, square or other regular shapes.
8. an electronic equipment, is characterized in that, comprises arbitrary described Microspeaker system in claim 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410106929.2A CN103945299A (en) | 2014-03-21 | 2014-03-21 | Miniature loudspeaker system and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410106929.2A CN103945299A (en) | 2014-03-21 | 2014-03-21 | Miniature loudspeaker system and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103945299A true CN103945299A (en) | 2014-07-23 |
Family
ID=51192739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410106929.2A Pending CN103945299A (en) | 2014-03-21 | 2014-03-21 | Miniature loudspeaker system and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103945299A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110177323A (en) * | 2019-05-15 | 2019-08-27 | 维沃移动通信有限公司 | Loudspeaker and terminal device |
| CN112261543A (en) * | 2020-10-23 | 2021-01-22 | 瑞声新能源发展(常州)有限公司科教城分公司 | Electronic equipment and speaker module thereof |
| WO2023082721A1 (en) * | 2021-11-10 | 2023-05-19 | 歌尔股份有限公司 | Sound production device, calibration method for sound production device, and sound production module |
| CN116668924A (en) * | 2023-07-26 | 2023-08-29 | 荣耀终端有限公司 | Electronic equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5600718A (en) * | 1995-02-24 | 1997-02-04 | Ericsson Inc. | Apparatus and method for adaptively precompensating for loudspeaker distortions |
| CN1622687A (en) * | 2004-12-21 | 2005-06-01 | 北京中星微电子有限公司 | Sound cavity apparatus |
| CN101222784A (en) * | 2007-01-12 | 2008-07-16 | 富准精密工业(深圳)有限公司 | Loudspeaker box structure and mobile electronic equipments adopting the same |
| CN202218379U (en) * | 2011-06-20 | 2012-05-09 | 胡淑芳 | Reflection type sound box |
| CN102630066A (en) * | 2012-02-23 | 2012-08-08 | 深圳创维－Rgb电子有限公司 | Eight-order band-pass speaker box and television |
| CN102638750A (en) * | 2012-04-09 | 2012-08-15 | 南京大学 | Design method of loudspeaker for active noise control of power transformer |
-
2014
- 2014-03-21 CN CN201410106929.2A patent/CN103945299A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5600718A (en) * | 1995-02-24 | 1997-02-04 | Ericsson Inc. | Apparatus and method for adaptively precompensating for loudspeaker distortions |
| CN1622687A (en) * | 2004-12-21 | 2005-06-01 | 北京中星微电子有限公司 | Sound cavity apparatus |
| CN101222784A (en) * | 2007-01-12 | 2008-07-16 | 富准精密工业(深圳)有限公司 | Loudspeaker box structure and mobile electronic equipments adopting the same |
| CN202218379U (en) * | 2011-06-20 | 2012-05-09 | 胡淑芳 | Reflection type sound box |
| CN102630066A (en) * | 2012-02-23 | 2012-08-08 | 深圳创维－Rgb电子有限公司 | Eight-order band-pass speaker box and television |
| CN102638750A (en) * | 2012-04-09 | 2012-08-15 | 南京大学 | Design method of loudspeaker for active noise control of power transformer |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110177323A (en) * | 2019-05-15 | 2019-08-27 | 维沃移动通信有限公司 | Loudspeaker and terminal device |
| CN112261543A (en) * | 2020-10-23 | 2021-01-22 | 瑞声新能源发展(常州)有限公司科教城分公司 | Electronic equipment and speaker module thereof |
| WO2023082721A1 (en) * | 2021-11-10 | 2023-05-19 | 歌尔股份有限公司 | Sound production device, calibration method for sound production device, and sound production module |
| CN116668924A (en) * | 2023-07-26 | 2023-08-29 | 荣耀终端有限公司 | Electronic equipment |
| CN116668924B (en) * | 2023-07-26 | 2023-11-14 | 荣耀终端有限公司 | Electronic equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204069237U (en) | Audio cavity structure and there is the terminal of this audio cavity structure | |
| CN203872334U (en) | Minisize loudspeaker system and electronic device | |
| CN103974160B (en) | Dual-speaker headphone | |
| CN203984671U (en) | Loud speaker module | |
| US10334353B2 (en) | Loudspeaker module and electronic product | |
| CN103002385B (en) | There is the Miniature loudspeaker module structure of self-adaptive pressure balance | |
| CN103945299A (en) | Miniature loudspeaker system and electronic equipment | |
| CN102724606B (en) | Sounding device | |
| CN105635892A (en) | Two-end-type double-diaphragm resonance sound box | |
| CN204681593U (en) | Electret microphone | |
| CN203387671U (en) | Micro loudspeaker with passive radiator | |
| CN204377113U (en) | Wall units type sound equipment | |
| CN203618111U (en) | Loudspeaker with multi-layer rear cavity | |
| CN203279147U (en) | Horn type multi-point excitation loudspeaker case | |
| CN103269468B (en) | Horn-type multipoint excitation speaker box | |
| CN204616050U (en) | Loud speaker module | |
| CN103716723A (en) | Display device shell and display device | |
| CN203734819U (en) | Spherically symmetrical push-pull type ultra-high-fidelity sound box | |
| CN204465835U (en) | Hyperline type list speakers low frequencies audio amplifier | |
| CN105992112B (en) | More monomer loud speaker modules and its design method, electronic equipment | |
| CN204616002U (en) | A kind of loud speaker module and electronic product | |
| CN102868957A (en) | Ultra-thin speaker system | |
| US9420364B2 (en) | Display device with sound generation regions having different areas | |
| CN201657037U (en) | Mobile terminal and sound cavity for same | |
| CN214101676U (en) | Electronic device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140723 |