CN104038857A - Sound cavity structure - Google Patents
Sound cavity structure Download PDFInfo
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- CN104038857A CN104038857A CN201410302047.3A CN201410302047A CN104038857A CN 104038857 A CN104038857 A CN 104038857A CN 201410302047 A CN201410302047 A CN 201410302047A CN 104038857 A CN104038857 A CN 104038857A
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- cavity structure
- audio cavity
- contact
- loudspeaker
- hole
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Abstract
The invention discloses a sound cavity structure which comprises an outer shell, a horn arranged in the outer shell in a built-in mode, a contact providing electrical connection for the horn and a circuit board connected with the contact. The outer shell is provided with a containing cavity for containing the horn and a through hole which penetrates through the outer shell and is communicated with the containing cavity. The sound cavity structure is further provided with a sealing device which is arranged around the through hole, and at least part of the contact is exposed out of the sealing device and is connected with the circuit board. According to the sound cavity structure, the horn is arranged in the containing cavity of the outer shell in a built-in mode, the through hole which enables at least part of the contact to be exposed out is formed in the local part of the outer shell, and the through hole is provided with the sealing device in a surrounding mode. Accordingly, the containing cavity of the outer shell can be fixed and sealed easily, materials are saved, and the overall structure of the sound cavity structure is reasonable and simple.
Description
Technical field
The present invention relates to a kind of audio cavity structure.
Background technology
Audio cavity structure is widely used on the portable electronic equipments such as mobile phone, notebook computer.Along with fast development, the people of these portable electronic equipments are more and more stronger to its Functional Requirement, the audio cavity structure being applied thereon is corresponding development rapidly also.
Along with portable electronic equipment is more and more pursued appearance looks elegant, the restrictions such as its lines shape, frivolous thickness make the sound cavity volume of audio cavity structure be difficult to reach the requirement of anticipation conventionally.Yet too little sound chamber will make the bass effect of audio cavity structure not good.
The sound chamber design of existing audio cavity structure has two schemes conventionally:
The first scheme: audio cavity structure is directly placed on the pcb board of portable electronic equipment, the upper cover of described like this audio cavity structure and described pcb board form sound chamber jointly.Meanwhile, in order to obtain the described sound chamber of relative sealing, between described pcb board and described audio cavity structure, be folded with foam.
Another kind of scheme: institute's audio cavity structure comprises shell and is contained in the loudspeaker in described shell.Described shell is an airtight cavity, and it is outer all as the sound chamber of described audio cavity structure that the cavity of described shell is removed the volume of described loudspeaker.For realizing the electrical connection of described loudspeaker, the described shell of described audio cavity structure is provided with Copper Foil and the wire that connects respectively described loudspeaker and external power source.
Yet a lot of portable electronic equipments require described audio cavity structure to be placed on specific position.As, when described portable electronic equipment is mobile phone, described audio cavity structure is placed on the following of mobile phone.Now, described audio cavity structure below do not have pcb board, periphery to have again a lot of sounds chamber barrier, as antenna feed point, USB seat, stationary housing screw or microphone etc.Adopt aforementioned first method, easily cause the poor problem of sealing reliability.Adopt first scheme, a lot of sounds of the surrounding's existence chamber barrier due to described audio cavity structure, causes the volume in described sound chamber limited.Meanwhile, described audio cavity structure selects described wire to provide while being electrically connected to, and outward appearance impression is not good; If select the connected mode of described Copper Foil, for realizing the connection of the described pcb board of described audio cavity structure and described portable electronic equipment, connection design that need to be more loaded down with trivial details.Therefore the structural design of the audio cavity structure of above two schemes is unreasonable.
Summary of the invention
Main purpose of the present invention is to provide a kind of audio cavity structure rational in infrastructure.
To achieve these objectives, the invention provides a kind of audio cavity structure, it comprises shell, be built in loudspeaker in described shell, provide the contact and the circuit board being connected with described contact of electrical connection for described loudspeaker, wherein, described shell is provided with accommodates the host cavity of described loudspeaker and the through hole that connects described shell and communicate with described host cavity, described audio cavity structure is also provided with the sealing device arranging around described through hole, and described contact exposes at least partly described sealing device and is connected with described circuit board.
Preferably, described shell comprises that bonnet and lid are connected on the upper cover of described bonnet, and described host cavity is jointly enclosed and forms by described bonnet and described upper cover, and described through hole is located on described and is covered.
Preferably, described loudspeaker are provided with vibrating diaphragm, are covered with the phonate hole running through on it after described, and described vibrating diaphragm is towards described phonate hole setting.
Preferably, after described, be covered with the holding tank that holds described loudspeaker.
Preferably, described shell also comprises some portions that dodge.
Preferably, described contact is provided with a pair of, and described sealing device surrounds respectively each contact.
Audio cavity structure of the present invention, described loudspeaker are built in the host cavity of described shell, the part of described shell is provided with the through hole that contact is exposed at least partly, and described through hole is around there being sealing device, the easy fixing seal of host cavity of described like this shell, the reasonable integral structure, simple of saving material and described audio cavity structure.
Accompanying drawing explanation
Fig. 1 is the three-dimensional exploded view of the loudspeaker of audio cavity structure of the present invention.
Fig. 2 is the decomposed figure of audio cavity structure of the present invention.
Fig. 3 is the front view of audio cavity structure of the present invention.
Fig. 4 is the schematic diagram of the circuit board that is fitted into portable electric appts of audio cavity structure of the present invention.
Fig. 5 is the front view of the another kind of execution mode of audio cavity structure of the present invention.
Embodiment
Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
As shown in Figure 1 to Figure 4, a kind of audio cavity structure, for packing in portable electron device, it comprises shell 7, be contained in loudspeaker 1 in described shell 7, provide the contact 4 and the circuit board 8 being connected with described contact 4 of electrical connection for described loudspeaker 1.
Described loudspeaker 1 comprise auxiliary mounting system, produce vibrational system and the magnetic circuit system of voice signal.Described auxiliary mounting system comprises that the basin frame 12 of hollow and lid are located at the protecgulum 11 on described basin frame 12.Described vibrational system is fixed on described basin frame 12, and it comprises vibrating diaphragm 21 and voice coil loudspeaker voice coil 22 that be connected with described vibrating diaphragm 21 and that drive described vibrating diaphragm 21 to vibrate.Described magnetic circuit system is contained in described basin frame 12, and it comprises yoke 33, be placed in the first magnet 321 in described yoke 33, be placed in the second magnet 322 of arranging around described the first magnet 321 in described yoke 33, be positioned at the first washer 311 on described the first magnet 321, be positioned at the second washer 312 on described the second magnet 322 and by the common magnetic gap forming of the outer surface of described the first magnet 321 and described the first washer 311 and the inner surface of described the second magnet 322 and described the second washer 312.After assembling, described voice coil loudspeaker voice coil 22 partial insertions of described vibrational system are in described magnetic gap.Described basin frame 12 is provided with mounting groove 121.Described contact 4 is inserted on described mounting groove 121.In selectable execution mode, described contact can arrange with described loudspeaker split, as long as contact provides electrical connection for described loudspeaker.
Described shell 7 comprises that bonnet 71, lid are connected on the upper cover 72 of described bonnet 71, and the host cavity jointly being surrounded by described bonnet 71 and described upper cover 72.Described bonnet 71 comprise hold the holding tank 711 of described loudspeaker and be arranged on described holding tank 711 inner and run through the phonate hole 712 of described bonnet 71.Described upper cover 72 is provided with the through hole 721 connecting on it.Described vibrating diaphragm 21 arranges towards described phonate hole 712.Described bonnet 71 and the 72 split settings of described upper cover are also glued together by glue.Described audio cavity structure is also provided with the sealing device 73 that is positioned on acoustical generator monomer 1 and arranges around the described through hole 721 of described shell 7.Described sealing device 73 can be selected the sealing materials such as silica gel or foam.
Shown in please refer to the drawing 4, the described upper cover 72 of the described shell 7 of described audio cavity structure is placed on described circuit board 8, and described sealing device 73 is folded between described loudspeaker 1 and described circuit board 8 and seals the described through hole 721 of described upper cover 72.Thereby the described shell 7 of described audio cavity structure, described loudspeaker 1, described circuit board 8 and sealing device 73 surround the sound chamber of a sealing jointly.Meanwhile, described contact 4 exposes to described sealing device 73 at least partly, thereby makes described contact 4 and described circuit board 8 butts.Audio cavity structure of the present invention, is conducive to audio cavity structure and packs the specific position of portable electronic equipment into.As, when portable electronic equipment is mobile phone, described audio cavity structure can be placed on the following of mobile phone.In addition, described circuit board 8 is provided with pad 81.The described contact 4 of described audio cavity structure and described pad 81 Mechanical Contacts of circuit board 8, in order to realize the electrical connection of the loudspeaker 1 of audio cavity structure.Described contact 4 is provided with a pair of.Preferably, described sealing device 73 surrounds respectively each contact 4.
Preferably, described circuit board 8 is selected the printed circuit board (PCB) of the rigidity for supporting.Certainly, in selectable execution mode, described circuit board 8 is selected also can select flexible PCB.
Preferably, the out-of-shape of described shell 7, it also comprises some portions 74 that dodge of the sound chamber barrier of dodging described portable electric appts.The integral body that the setting of dodging portion 74 described in it should be noted that can not affect described host cavity communicates.In present embodiment, described sound chamber barrier can be that antenna feed point link, USB seat, microphone, screw column or other have the device of certain volume.In addition,, the audio cavity structure of another embodiment of the invention as shown in Figure 5, it is dodged portion 74 and is set directly on housing 1.
Preferably, for the ease of described audio cavity structure, be assemblied on described portable electric appts, described shell 7 is also provided with the screw fixing hole 75 running through respectively on it.Correspondingly, described circuit board 8 is also provided with the installing hole 82 matching with screw fixing hole 75.Described portable electron device runs through respectively the mode of described screw fixing hole 75 and described installing hole 82 by fixed leg, described audio cavity structure is installed on the circuit board 8 on described portable electric appts.
During use, described audio cavity structure packs in portable electric appts.Meanwhile, the associated electronic components that can carry portable electric appts on the circuit board of described audio cavity structure.
Audio cavity structure of the present invention, described loudspeaker are built in the host cavity of described shell, the part of described shell is provided with the through hole that contact is exposed at least partly, and described through hole is around there being sealing device, and the overall structure of the easy fixing seal of host cavity of described like this shell, saving material and described audio cavity structure is simple.
The shell of described audio cavity structure, loudspeaker, circuit board and sealing device surround the sound chamber of a sealing jointly.
With reference to the accompanying drawings of the preferred embodiments of the present invention, not thereby limit to interest field of the present invention above.Those skilled in the art do not depart from the scope and spirit of the present invention, and can have multiple flexible program to realize the present invention, such as the feature as an embodiment can be used for another embodiment, obtain another embodiment.Allly using any modification of doing within technical conceive of the present invention, be equal to and replace and improve, all should be within interest field of the present invention.
Claims (6)
1. an audio cavity structure, it comprises shell, be built in loudspeaker in described shell, provide the contact and the circuit board being connected with described contact of electrical connection for described loudspeaker, it is characterized in that: described shell is provided with accommodates the host cavity of described loudspeaker and the through hole that connects described shell and communicate with described host cavity, described audio cavity structure is also provided with the sealing device arranging around described through hole, and described contact exposes at least partly described sealing device and is connected with described circuit board.
2. audio cavity structure as claimed in claim 1, is characterized in that: described shell comprises that bonnet and lid are connected on the upper cover of described bonnet, and described host cavity is jointly enclosed and forms by described bonnet and described upper cover, and described through hole is located on described and is covered.
3. audio cavity structure as claimed in claim 2, is characterized in that: described loudspeaker are provided with vibrating diaphragm, is covered with the phonate hole running through on it after described, and described vibrating diaphragm is towards described phonate hole setting.
4. audio cavity structure as claimed in claim 1, is characterized in that: after described, be covered with the holding tank that holds described loudspeaker.
5. audio cavity structure as claimed in claim 1, is characterized in that: described shell also comprises some portions that dodge.
6. audio cavity structure as claimed in claim 1, is characterized in that: described contact is provided with a pair of, and described sealing device surrounds respectively each contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410302047.3A CN104038857A (en) | 2014-06-27 | 2014-06-27 | Sound cavity structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410302047.3A CN104038857A (en) | 2014-06-27 | 2014-06-27 | Sound cavity structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104038857A true CN104038857A (en) | 2014-09-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410302047.3A Pending CN104038857A (en) | 2014-06-27 | 2014-06-27 | Sound cavity structure |
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| CN (1) | CN104038857A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201123121Y (en) * | 2007-11-28 | 2008-09-24 | 中兴通讯股份有限公司 | Mobile terminal and speaker cavity used for the same |
| CN101588395A (en) * | 2008-05-21 | 2009-11-25 | 深圳富泰宏精密工业有限公司 | Electronic device with loudspeaker |
| CN201509305U (en) * | 2009-10-17 | 2010-06-16 | 歌尔声学股份有限公司 | Minitype energy converter component |
| US8189848B2 (en) * | 2007-06-01 | 2012-05-29 | Samsung Electronics Co., Ltd. | Speaker module for a portable terminal |
| CN103067798A (en) * | 2011-10-24 | 2013-04-24 | 比亚迪股份有限公司 | Sound cavity structure and electronic product with same |
| CN203387639U (en) * | 2013-07-19 | 2014-01-08 | 歌尔声学股份有限公司 | Loudspeaker module assembly |
-
2014
- 2014-06-27 CN CN201410302047.3A patent/CN104038857A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8189848B2 (en) * | 2007-06-01 | 2012-05-29 | Samsung Electronics Co., Ltd. | Speaker module for a portable terminal |
| CN201123121Y (en) * | 2007-11-28 | 2008-09-24 | 中兴通讯股份有限公司 | Mobile terminal and speaker cavity used for the same |
| CN101588395A (en) * | 2008-05-21 | 2009-11-25 | 深圳富泰宏精密工业有限公司 | Electronic device with loudspeaker |
| CN201509305U (en) * | 2009-10-17 | 2010-06-16 | 歌尔声学股份有限公司 | Minitype energy converter component |
| CN103067798A (en) * | 2011-10-24 | 2013-04-24 | 比亚迪股份有限公司 | Sound cavity structure and electronic product with same |
| CN203387639U (en) * | 2013-07-19 | 2014-01-08 | 歌尔声学股份有限公司 | Loudspeaker module assembly |
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| C06 | Publication | ||
| PB01 | Publication | ||
| CB02 | Change of applicant information |
Address after: A District No. 9018 Han innovation building in Nanshan District high tech Zone in Shenzhen city of Guangdong Province, North Central Avenue, 518000 floor 10 Applicant after: Nubian Technologies Ltd. Address before: A District No. 9018 Han innovation building in Nanshan District high tech Zone in Shenzhen city of Guangdong Province, North Central Avenue, 518000 floor 10 Applicant before: Shenzhen ZTE Mobile Tech Co., Ltd. |
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| COR | Change of bibliographic data | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140910 |
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| RJ01 | Rejection of invention patent application after publication |