CN201435742Y - Audio cavity structure and movable electronic equipment with same - Google Patents
Audio cavity structure and movable electronic equipment with same Download PDFInfo
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- CN201435742Y CN201435742Y CN 200920070328 CN200920070328U CN201435742Y CN 201435742 Y CN201435742 Y CN 201435742Y CN 200920070328 CN200920070328 CN 200920070328 CN 200920070328 U CN200920070328 U CN 200920070328U CN 201435742 Y CN201435742 Y CN 201435742Y
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Abstract
The utility model discloses an audio cavity structure and movable electronic equipment with same, in the technical scheme, the printed circuit board of the movable electronic equipment is collocated with an antenna area, an element area and a loudspeaker area, while the audio cavity structure is provided with an audio cavity shell body, and also an antenna closed part, an element closed part and aloudspeaker closed part which correspond to each area and are internally communicated with each other, wherein a first closed cavity body is formed by the antenna closed part and the printed circuitboard in the antenna area, a second closed cavity body is formed by the element closed part and the machine shell of the movable electronic equipment in the element area, an isolate component is usedfor isolating the sound from the front cavity to the rear cavity of the loudspeaker in the loudspeaker area, and a third closed cavity body is formed by the isolate component and the loudspeaker closed part in the rear cavity.
Description
Technical field
The utility model is meant a kind of audio cavity structure of mobile electronic device especially relevant for a kind of mobile electronic device.
Background technology
Fast development along with information industry, mobile electronic device demand as mobile phone heightens, and as the mobile phone of popular communication tool, its basic functions is at the transmission voice signal, and be the transmission voice signal, need to adopt the electroacoustic transition components convert voice signal to electric signal, or convert electric signal to vibratile structure and use generation sound, but wherein widely used loud speaker is in order to electric signal is converted to vibrational structure to produce sound.
The voice quality of mobile phone except relevant with loud speaker itself, also be arranged on loud speaker outside audio cavity structure very relevant; The sound chamber cavity volume of the audio cavity structure of mobile phone is bigger, the damping action that air in cavity is sounded to loud speaker is then little, so can reduce the lowest resonant frequency of loud speaker, and then reach preferable LF-response effect, to promote the voice quality of mobile phone.Yet the increase of sound chamber cavity volume must increase the mobile phone volume accordingly, obvious and mobile phone is disagreed towards short and small, frivolous development trend, so when promoting the mobile phone voice quality, can not increase its volume and size again, seem most important.
Multimedia handset (mobile phone) product is more and more at present, requirement to sound quality is also more and more higher, please refer to Fig. 1, the cutaway view of representing a known loudspeaker and sound chamber, because the electronic building brick on the printed circuit board (PCB) A1 in this body structure of mobile phone (figure does not show) is less, and more smooth space can be arranged, and therefore can utilize printed circuit board (PCB) (printed circuit board, PCB) A1 and antenna holder (figure does not show) to form the sound chamber cavity A3 of loud speaker A2, are used the raising tone color.
Yet Not every day is Sunday, the increase of appearance of dual-mode handset subsequently and the various functions of mobile phone, in mobile phone on the printed circuit board (PCB) near the antenna, the assembly and the shielding of various different what's news promptly are set, therefore cause the space out-of-flatness on the printed circuit board (PCB), be difficult to again with individual antenna support and the sound chamber cavity of printed circuit board (PCB) as mentioned above with the composition loud speaker.Refer again to Fig. 2, the cutaway view of representing another known loudspeaker and sound chamber cavity, adopt upper and lower cover piece B1, B2 to form the sound chamber cavity B3 of sealing, wherein descend cover piece B2 to have differing heights to change according to the electronic building brick B5 on the printed circuit board (PCB) B4, use the audio demand that makes full use of the space on the printed circuit board (PCB) B4 and satisfy loud speaker B6.
Because it is compact that the trend of present mobile phone products system requires, so the inner space that can use is less and less, if the sound chamber cavity system that adopts two cover pieces (promptly part that increases) to be combined into sealing may produce following shortcoming more:
1. but set up a part more and promptly take the inner sound of mobile phone chamber cavity usage space more, and the reduction of sound chamber cavity promptly has influence on the lifting of loud speaker audio;
2. make a part more and must again offer a sleeve forming mould more, promptly can increase and produce and manufacturing cost;
3. necessary many one procedure when producing assembling become complicated and increase man-hour but produce; And
4. be subjected to the influence of module position on the printed circuit board (PCB), some space structure design difficulty causes more spaces can't be utilized the audio chamber.
The utility model content
Therefore, the purpose of this utility model provides a kind of audio cavity structure, in mobile phone products, have under the situation of complex assemblies, adopt the single antenna support, realize the isolation and the sealing in the forward and backward sound of loud speaker chamber, utilize unnecessary structure space to increase sound chamber volume, thereby promote the loud speaker audio.
Another purpose of the present utility model is, provides a kind of after reducing because of the part number, and the audio cavity structure that is easy to assemble.
To achieve these goals, the utility model provides a kind of audio cavity structure, be arranged in the mobile electronic device, one printed circuit board (PCB) of this mobile electronic device disposes an antenna area, one device region and a speaker area, this audio cavity structure comprises: a sound cavity shell, these zones of corresponding this printed circuit board (PCB) and have an antenna closure that inside communicates, an one assembly closure and a loud speaker closure, and form first closed cavity with this antenna closure and this printed circuit board (PCB) at this antenna area, form second closed cavity in this device region with a casing of this assembly closure and this mobile electronic device, with a barrier assembly one ante-chamber and a back cavity of one loud speaker carried out isolates sound in this speaker area, this back cavity forms one the 3rd closed cavity by this barrier assembly and this loud speaker closure; And a barrier assembly, be arranged on a loud speaker in the 3rd closed cavity in order to isolation.
The preferably, these closure are to utilize a mould to insert the structure that broken inside that means are formed communicates up and down.
The preferably has a beam structure between this assembly closure and this loud speaker closure, is to utilize a mould to cooperate the formed structure of means of a slide block.
The preferably, this barrier assembly is an isolation foam, this isolation foam has a perforate in the position of corresponding this loud speaker.
The preferably, this barrier assembly extends to and covers this assembly closure.
The preferably, the top seal structure that this antenna closure is this sound cavity shell on this antenna area, the bottom lock structure that this loud speaker closure is this sound cavity shell on this speaker area, this assembly closure are the polycrystalline substance of this sound cavity shell on this device region.
To achieve these goals, the utility model provides a kind of mobile electronic device, comprising: a casing, roughly be rectangular-shaped structure, and have a key zone, a viewing area and an articulating region; One printed circuit board (PCB) is arranged in this casing and disposes an antenna area, a device region and a speaker area; One audio cavity structure, be arranged on this articulating region and this printed circuit board (PCB), and this audio cavity structure has a sound cavity shell and a barrier assembly, these zones of corresponding this printed circuit board (PCB) of this sound cavity shell and have an antenna closure that inside communicates, an one assembly closure and a loud speaker closure, and form one first closed cavity with this antenna closure and this printed circuit board (PCB) at this antenna area, form one second closed cavity in this device region with a casing of this assembly closure and this mobile electronic device, with a barrier assembly one ante-chamber and a back cavity of one loud speaker carried out isolates sound in this speaker area, this back cavity forms the 3rd closed cavity by this barrier assembly and this loud speaker closure; And an antenna, be to be arranged in this first closed cavity.
The preferably, this mobile electronic device is a mobile phone or personal digital assistant.
Purpose that the utility model is above-mentioned and advantage are not difficult to obtain to understand in depth from the detailed description and accompanying drawing of following selected embodiment.
Certainly, the utility model is at some in addition on part, or allows in the arrangement of part differently in addition, but selected embodiment then in this specification, described in detail, and shows its structure in accompanying drawing.
Therefore, by above-mentioned structure and formation method, the utlity model has following advantage:
1. materials used is less, and is simple in structure, can improve the yield of product during the manufacturing;
2. audio cavity structure is monomer structure (overall structure), the different appearance and modeling effects of can arranging in pairs or groups;
3. can reduce the restriction of assembly layout, use, even the regional space of sub-liquid crystal panel (sub-LCD) that shows as window also can be utilized as the sound chamber so long as the space all can form the sound chamber volume of loud speaker;
4. compared to the structure of known upper and lower cover piece, the utility model is saved a mold, uses and reduces manufacturing cost and man-hour;
5. compared to the structure of known upper and lower cover piece, the utility model is saved a loam cake part, uses reducing production costs;
6. compared to the structure of known upper and lower cover piece, the last cover member thickness that the utility model utilization is removed can have more sound cavity volume space, uses to promote loud speaker audio quality; And
7. because the utility model is simple in structure, therefore be easy to assembling.
Description of drawings
Fig. 1 represents the cutaway view in a known loudspeaker and sound chamber;
Fig. 2 represents the cutaway view of another known loudspeaker and sound chamber cavity;
Fig. 3 represents that the utility model mobile electronic device is the structure chart of example with the mobile phone;
Fig. 4 represents that the utility model mobile electronic device is the structure chart of example with the personal digital assistant;
Fig. 5 represents the part figure of the utility model audio cavity structure;
Fig. 6 represents the perspective view of the utility model audio cavity structure;
Fig. 7 represents the exploded view of the utility model audio cavity structure; And
Fig. 8 represents the flow chart of the utility model sound chamber formation method.
The primary clustering symbol description
1 mobile electronic device
The 1a mobile phone
The 1b personal digital assistant
10 casings
The 10a sender
The 11a key zone
The 12a viewing area
The 12b viewing area
The 13a articulating region
The 13b articulating region
14 printed circuit board (PCB)s
141 antenna areas
142 device region
143 speaker area
15 antennas
2 audio cavity structures
21 antenna closure
22 assembly closure
23 loud speaker closure
24 beam structures
3 sound cavity shells
4 barrier assemblies
The 4a perforate
5 first closed cavities
6 second closed cavities
7 the 3rd closed cavities
8 loud speakers
81 ante-chambers
82 back cavities
The A1 printed circuit board (PCB)
The A2 loud speaker
A3 sound chamber cavity
The last cover piece of B1
Cover piece under the B2
B3 sound chamber cavity
The B4 printed circuit board (PCB)
The B5 electronic building brick
The B6 loud speaker
The sub-liquid crystal panel of L
Embodiment
Use the technological means that achieves the above object about the utility model, cooperate to be illustrated at hereinafter with following implementation type attitude now to elaborate.
Please also refer to Fig. 3 and Fig. 4, represent that respectively the utility model mobile electronic device is example with the mobile phone and is the structure chart of example with the personal digital assistant.Mobile electronic device 1 of the present utility model can be a mobile phone 1a (as shown in Figure 3) or personal digital assistant 1b (personal digital assistant, PDA, as shown in Figure 4), but not as limit; And be follow-up convenient narration, be to be that example describes with the mobile phone.
As shown in Figure 3, mobile phone 1a comprises a casing 10, roughly be rectangular-shaped structure, and has a sender 10a (as shown in Figure 7), and mobile phone 1a also has a key zone 11a, a viewing area 12a and an articulating region 13a, and the inside of casing 10 is provided with a printed circuit board (PCB) 14 (as shown in Figure 5), an audio cavity structure 2 and an antenna 15 (as shown in Figure 6).
And when mobile electronic device 1 is personal digital assistant 1b, its structure roughly identical (as shown in Figure 4) with mobile phone 1a, have key zone 11a, viewing area 12b and articulating region 13b, but viewing area 12b and articulating region 13b can also only be arranged, wherein viewing area 12b is touch panel (figure does not show), carry out the input of information by touch control manner, and need not establish keyboard region 11a in addition as mobile phone 1a.
Please refer to Fig. 5, Fig. 6 and Fig. 7, represent part figure, perspective view and the exploded view of the utility model audio cavity structure respectively.
Dispose an antenna area 141, a device region 142 and a speaker area 143 on the printed circuit board (PCB) 14.
Form first closed cavity 5 at antenna area 141 with antenna closure 21 and printed circuit board (PCB) 14, with ccontaining antenna 15, and antenna closure 21 is identical with known antenna holder (figure does not show) effect; At casing 10 formation second closed cavity 6 of device region 142 with assembly closure 22 and mobile phone 1a (mobile electronic device 1), with with printed circuit board (PCB) 14 on electronic building brick separate and electronic building brick such as sub-liquid crystal panel (sub-LCD) L, shielding, connector or integrated circuit (IC); Carry out isolates sound in loud speaker closure 23 with an ante-chamber 81 and a back cavity 82 of 4 pairs of loud speakers 8 of barrier assembly, back cavity 82 forms the 3rd closed cavity 7 by barrier assembly 4 and loud speaker closure 23; And barrier assembly 4 can be one and isolates foam or other by the made assembly of damping material, be arranged on loud speaker 8 in the 3rd closed cavity 7 in order to isolation, and barrier assembly 4 is provided with a perforate 4a in the position of corresponding loud speaker 8.
Therefore, by above-mentioned structure, the housing of audio cavity structure is an overall structure, simple in structure, and can be according to the height of the electronic building brick on the printed circuit board (PCB), to form and the difform assembly closure of arranging in pairs or groups, effectively utilize the sound chamber volume between casing and the printed circuit by mould, and then improve the audio quality of loud speaker.
Refer again to Fig. 8, the flow chart of expression the utility model sound chamber formation method.Please also refer to Fig. 7 and Fig. 8, sound of the present utility model chamber formation method comprises:
Step S1: form one first closed cavity 5 with antenna closure 21 and printed circuit board (PCB) at antenna area 141;
Step S2: at casing 10 formation one second closed cavity 6 of device region 142 with assembly closure 22 and mobile electronic device 1;
Step S3: carry out isolates sound in speaker area 143 with an ante-chamber 81 and a back cavity 82 of 4 pairs of loud speakers 8 of barrier assembly, back cavity 82 forms the 3rd closed cavity 7 by barrier assembly 4 and loud speaker closure 23.
Therefore, by above-mentioned structure and formation method, the utlity model has following advantage:
1. materials used is less, and is simple in structure, can improve the yield of product during the manufacturing;
2. audio cavity structure is monomer structure (overall structure), the different appearance and modeling effects of can arranging in pairs or groups;
3. can reduce the restriction of assembly layout, use, even the regional space of sub-liquid crystal panel (sub-LCD) that shows as window also can be utilized as the sound chamber so long as the space all can form the sound chamber volume of loud speaker;
4. compared to the structure of known upper and lower cover piece, the utility model is saved a mold, uses and reduces manufacturing cost and man-hour;
5. compared to the structure of known upper and lower cover piece, the utility model is saved a loam cake part, uses reducing production costs;
6. compared to the structure of known upper and lower cover piece, the last cover member thickness that the utility model utilization is removed can have more sound cavity volume space, uses to promote loud speaker audio quality; And
7. because the utility model is simple in structure, therefore be easy to assembling.
The above implements the announcement of kenel in order to explanation the utility model, is not in order to restriction the utility model, so the displacement of the change of numerical value or equivalent elements must be subordinate to category of the present utility model such as.
By above detailed description, can make and know present technique field person and understand that the utility model can reach aforementioned purpose really.
Claims (13)
1, a kind of audio cavity structure is arranged in the mobile electronic device, and a printed circuit board (PCB) of this mobile electronic device disposes an antenna area, a device region and a speaker area, it is characterized in that, this audio cavity structure comprises:
One sound cavity shell, these zones of corresponding this printed circuit board (PCB) and have an antenna closure, an assembly closure and a loud speaker closure that inside communicates, and form first closed cavity with this antenna closure and this printed circuit board (PCB) at this antenna area, form second closed cavity in this device region with a casing of this assembly closure and this mobile electronic device, with a barrier assembly one ante-chamber and a back cavity of one loud speaker carried out isolates sound in this speaker area, this back cavity forms the 3rd closed cavity by this barrier assembly and this loud speaker closure; And
One barrier assembly is arranged on a loud speaker in the 3rd closed cavity in order to isolation.
2, according to the described audio cavity structure of claim 1, it is characterized in that, utilize a mould between these closure to insert the structure that broken inside that means are formed communicates up and down.
3, according to the described audio cavity structure of claim 1, it is characterized in that, in have a beam structure between this assembly closure and this loud speaker closure, utilize a mould to cooperate the formed structure of means of a slide block.
According to the described audio cavity structure of claim 1, it is characterized in that 4, this barrier assembly is an isolation foam, this isolation foam has a perforate in the position of corresponding this loud speaker.
According to the described audio cavity structure of claim 1, it is characterized in that 5, this barrier assembly extends to and cover this assembly closure.
6, according to the described audio cavity structure of claim 1, it is characterized in that, the top seal structure that this antenna closure is this sound cavity shell on this antenna area, the bottom lock structure that this loud speaker closure is this sound cavity shell on this speaker area, this assembly closure are the polycrystalline substance of this sound cavity shell on this device region.
According to the described audio cavity structure of claim 1, it is characterized in that 7, this mobile electronic device is a mobile phone or a personal digital assistant.
8, a kind of mobile electronic device comprises:
One casing is rectangular-shaped structure, has a key zone, a viewing area and an articulating region;
One printed circuit board (PCB) is arranged in this casing and disposes an antenna area, a device region and a speaker area;
One audio cavity structure, be arranged on this articulating region and this printed circuit board (PCB), and this audio cavity structure has a sound cavity shell and a barrier assembly, these zones of corresponding this printed circuit board (PCB) of this sound cavity shell and have an antenna closure that inside communicates, an one assembly closure and a loud speaker closure, and form one first closed cavity with this antenna closure and this printed circuit board (PCB) at this antenna area, form second closed cavity in this device region with a casing of this assembly closure and this mobile electronic device, with a barrier assembly one ante-chamber and a back cavity of one loud speaker carried out isolates sound in this speaker area, this back cavity forms the 3rd closed cavity by this barrier assembly and this loud speaker closure; And
One antenna is arranged in this first closed cavity.
9, according to the described mobile electronic device of claim 8, it is characterized in that, is a mobile phone or a personal digital assistant.
10, according to the described mobile electronic device of claim 8, it is characterized in that, utilize a mould between these closure to insert the structure that broken inside that means are formed communicates up and down.
11, according to the described mobile electronic device of claim 8, it is characterized in that having a beam structure between this assembly closure and this loud speaker closure, utilize a mould to cooperate the formed structure of means of a slide block.
According to the described mobile electronic device of claim 8, it is characterized in that 12, this barrier assembly is an isolation foam, this isolation foam has a perforate in the position of corresponding this loud speaker.
According to the described mobile electronic device of claim 8, it is characterized in that 13, this barrier assembly extends to and cover this assembly closure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920070328 CN201435742Y (en) | 2009-04-14 | 2009-04-14 | Audio cavity structure and movable electronic equipment with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920070328 CN201435742Y (en) | 2009-04-14 | 2009-04-14 | Audio cavity structure and movable electronic equipment with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201435742Y true CN201435742Y (en) | 2010-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920070328 Expired - Fee Related CN201435742Y (en) | 2009-04-14 | 2009-04-14 | Audio cavity structure and movable electronic equipment with same |
Country Status (1)
| Country | Link |
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| CN (1) | CN201435742Y (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102348002A (en) * | 2011-07-15 | 2012-02-08 | 深圳市迪美通讯设备有限公司 | Speaker sound cavity box with sound-guiding pipe groove |
| CN102523550A (en) * | 2011-12-28 | 2012-06-27 | 歌尔声学股份有限公司 | Miniature loudspeaker module and manufacturing method thereof |
| CN102724606A (en) * | 2012-06-04 | 2012-10-10 | 瑞声声学科技(深圳)有限公司 | Sounding device |
| CN103179486A (en) * | 2011-12-20 | 2013-06-26 | 英华达（上海）科技有限公司 | Mobile electronic device with closed sound chamber |
| CN103200501A (en) * | 2012-01-04 | 2013-07-10 | 苹果公司 | Speaker front volume usage |
| CN103916721A (en) * | 2013-01-08 | 2014-07-09 | 三星电子株式会社 | Terminal having speaker and method of manufacturing the same |
| CN105872919A (en) * | 2016-03-08 | 2016-08-17 | 上海安费诺永亿通讯电子有限公司 | Loudspeaker module |
| TWI602441B (en) * | 2016-07-11 | 2017-10-11 | 宏碁股份有限公司 | Speaker with harmonic sound and electronic device using the same |
| CN108430017A (en) * | 2018-04-24 | 2018-08-21 | 歌尔股份有限公司 | A kind of sound-producing device and electronic equipment |
| EP3454569A1 (en) * | 2017-09-08 | 2019-03-13 | Guangdong OPPO Mobile Telecommunications Corp., Ltd. | Electroacoustic device and mobile terminal |
| CN109495823A (en) * | 2018-12-27 | 2019-03-19 | 瑞声声学科技(深圳)有限公司 | Loudspeaker enclosure and portable electronic device |
| CN112261187A (en) * | 2020-10-23 | 2021-01-22 | 维沃移动通信有限公司 | Electronic device |
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2009
- 2009-04-14 CN CN 200920070328 patent/CN201435742Y/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102348002A (en) * | 2011-07-15 | 2012-02-08 | 深圳市迪美通讯设备有限公司 | Speaker sound cavity box with sound-guiding pipe groove |
| CN103179486B (en) * | 2011-12-20 | 2016-10-12 | 英华达（上海）科技有限公司 | The electronic apparatus in tool closed sound chamber |
| CN103179486A (en) * | 2011-12-20 | 2013-06-26 | 英华达（上海）科技有限公司 | Mobile electronic device with closed sound chamber |
| CN102523550A (en) * | 2011-12-28 | 2012-06-27 | 歌尔声学股份有限公司 | Miniature loudspeaker module and manufacturing method thereof |
| CN103200501A (en) * | 2012-01-04 | 2013-07-10 | 苹果公司 | Speaker front volume usage |
| CN103200501B (en) * | 2012-01-04 | 2016-03-23 | 苹果公司 | The use of loud speaker ante-chamber |
| CN102724606A (en) * | 2012-06-04 | 2012-10-10 | 瑞声声学科技(深圳)有限公司 | Sounding device |
| CN103916721A (en) * | 2013-01-08 | 2014-07-09 | 三星电子株式会社 | Terminal having speaker and method of manufacturing the same |
| CN103916721B (en) * | 2013-01-08 | 2018-11-30 | 三星电子株式会社 | The method of terminal and the manufacture terminal with loudspeaker |
| CN105872919A (en) * | 2016-03-08 | 2016-08-17 | 上海安费诺永亿通讯电子有限公司 | Loudspeaker module |
| WO2017177545A1 (en) * | 2016-03-08 | 2017-10-19 | 上海安费诺永亿通讯电子有限公司 | Loudspeaker module |
| TWI602441B (en) * | 2016-07-11 | 2017-10-11 | 宏碁股份有限公司 | Speaker with harmonic sound and electronic device using the same |
| US10440479B2 (en) | 2017-09-08 | 2019-10-08 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Electroacoustic device and mobile terminal |
| EP3454569A1 (en) * | 2017-09-08 | 2019-03-13 | Guangdong OPPO Mobile Telecommunications Corp., Ltd. | Electroacoustic device and mobile terminal |
| CN108430017A (en) * | 2018-04-24 | 2018-08-21 | 歌尔股份有限公司 | A kind of sound-producing device and electronic equipment |
| WO2019205721A1 (en) * | 2018-04-24 | 2019-10-31 | 歌尔股份有限公司 | Sound emission device and electronic apparatus |
| CN109495823A (en) * | 2018-12-27 | 2019-03-19 | 瑞声声学科技(深圳)有限公司 | Loudspeaker enclosure and portable electronic device |
| CN112261187A (en) * | 2020-10-23 | 2021-01-22 | 维沃移动通信有限公司 | Electronic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100331 Termination date: 20180414 |
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| CF01 | Termination of patent right due to non-payment of annual fee |