CN204014043U - Microphone device - Google Patents
Microphone device Download PDFInfo
- Publication number
- CN204014043U CN204014043U CN201420358317.8U CN201420358317U CN204014043U CN 204014043 U CN204014043 U CN 204014043U CN 201420358317 U CN201420358317 U CN 201420358317U CN 204014043 U CN204014043 U CN 204014043U
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- China
- Prior art keywords
- vibrating diaphragm
- shell
- microphone device
- ball top
- voice coil
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- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of microphone device, comprise loudspeaker monomer and accommodate the fixedly shell of loudspeaker monomer, described loudspeaker monomer involving vibrations system and magnetic circuit system, described vibrational system comprises vibrating diaphragm and the voice coil loudspeaker voice coil that is incorporated into vibrating diaphragm one side, and described magnetic circuit system forms the magnetic gap that holds voice coil loudspeaker voice coil; The operatic tunes before forming between described vibrating diaphragm front side and described shell, the operatic tunes after forming between described vibrating diaphragm rear side and described shell, wherein, the side of described shell is provided with phonate hole, and described phonate hole is communicated with the described front operatic tunes; Described vibrating diaphragm comprises the ball top that is positioned at center and the ring portion that is positioned at marginal position, edge and the described shell secure bond of described ring portion, the side that described ring portion is connected with described ball top is provided with ball top connecting portion, and the side that described ring portion is combined with described shell is provided with shell joint portion; And the part-structure of described shell joint portion is positioned on the port of described phonate hole, between described shell joint portion and described ball top connecting portion, there is difference in height.There is difference in height at the two ends of the surround portion of microphone device in the utility model, can increase the size of phonate hole, can increase again the size of loudspeaker monomer, thereby improved the acoustical behavior of product.
Description
Technical field
The utility model relates to electroacoustic switch technology field, more specifically, relates to a kind of microphone device that increases acoustic radiating area.
Background technology
Along with social progress and the development of technology, terminal electronics volume reduces, reduced thickness, and the volume of the mini-sound device coordinating is with it also more and more less, and consumer requires more and more higher to the performance of product.Microphone device for small size, is subject to volume restrictions, is difficult to the acoustic efficiency that reaches desirable.
The shell that microphone device generally includes loudspeaker monomer and arranges around loudspeaker monomer, loudspeaker monomer generally includes vibrational system and magnetic circuit system, vibrational system comprises vibrating diaphragm and voice coil loudspeaker voice coil, magnetic circuit system forms the magnetic gap of accommodating voice coil loudspeaker voice coil, vibrating diaphragm vibration sounding be radiated the external world under the drive of voice coil loudspeaker voice coil, thus can be received by people's ear.Conventionally the shell of microphone device is provided with phonate hole, and phonate hole can make the acoustic radiating sending in loudspeaker monomer to extraneous.But be subject to the restriction of microphone device size, phonate hole is conventionally very little, be difficult to the sound wave that effective radiation loudspeaker monomer sends, if increase phonate hole, can reduce the size of loudspeaker monomer again, can affect equally the acoustical behavior of microphone device.
Therefore, be necessary to provide a kind of microphone device, to address the above problem.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of microphone device, in the situation that microphone device size is certain, can effectively increases the size of phonate hole, thereby improve the radiation efficiency of phonate hole, increase the size of loudspeaker monomer simultaneously, improve acoustical behavior.
In order to solve the problems of the technologies described above, the utility model provides a kind of microphone device, comprise loudspeaker monomer and accommodate the fixedly shell of loudspeaker monomer, described loudspeaker monomer involving vibrations system and magnetic circuit system, described vibrational system comprises vibrating diaphragm and the voice coil loudspeaker voice coil that is incorporated into vibrating diaphragm one side, and described magnetic circuit system forms the magnetic gap that holds voice coil loudspeaker voice coil; The operatic tunes before forming between described vibrating diaphragm front side and described shell, the operatic tunes after forming between described vibrating diaphragm rear side and described shell, wherein, the side of described shell is provided with phonate hole, and described phonate hole is communicated with the described front operatic tunes; Described vibrating diaphragm comprises the ball top that is positioned at center and the ring portion that is positioned at marginal position, edge and the described shell secure bond of described ring portion, the side that described ring portion is connected with described ball top is provided with ball top connecting portion, and the side that described ring portion is combined with described shell is provided with shell joint portion; And the part-structure of described shell joint portion is positioned on the port of described phonate hole, between described shell joint portion and described ball top connecting portion, there is difference in height.
In addition, preferred scheme is that described shell comprises upper casing and mesochite, forms described phonate hole between described upper casing and mesochite; The ring portion of described vibrating diaphragm is incorporated on described mesochite, and described mesochite forms described shell joint portion with the position that described ring portion is combined, and the position of described shell joint portion is lower than the position of described ball top connecting portion.
In addition, preferred scheme is that the ring portion of described vibrating diaphragm is recessed structure, to the curving near described magnetic circuit system.
In addition, preferred scheme is that the part over against described vibrating diaphragm on described upper casing is injected with sheet metal.
In addition, preferred scheme is, in the number range of the difference in height between described ball top connecting portion and described shell joint portion between 0.2mm to 0.6mm.
In addition, preferred scheme is that the ball top of described vibrating diaphragm is identical with the residing height of described ball top connecting portion.
In addition, preferably scheme is, in the described rear operatic tunes, is also provided with passive sound location, and described passive sound location comprises two passive radiators that are oppositely arranged.
In addition, preferred scheme is that described mesochite is provided with reinforcement.
Adopt after technique scheme, compare with traditional structure, there is difference in height at the two ends of the surround portion of microphone device in the utility model, can increase the size of phonate hole, can increase again the size of loudspeaker monomer, thereby improved the acoustical behavior of product.
Accompanying drawing explanation
By reference to the content below in conjunction with the description of the drawings and claims, and along with understanding more comprehensively of the present utility model, other object of the present utility model and result will be understood and easy to understand more.In the accompanying drawings:
Fig. 1 is the cross-sectional view of the utility model microphone device;
Fig. 2 is the cross-sectional view of the part of loudspeaker monomer shown in the utility model Fig. 1;
Fig. 3 is that the utility model microphone device removes the perspective view after upper casing.
Embodiment
Below with reference to accompanying drawing, specific embodiment of the utility model is described in detail.
In conjunction with Fig. 1 and Fig. 2, the utility model microphone device involving vibrations system, magnetic circuit system, and accommodate the fixedly shell of vibrational system and magnetic circuit system, wherein, shell comprises upper casing 11, mesochite 12 and lower casing 13.Vibrational system comprises vibrating diaphragm 21 and is incorporated into the voice coil loudspeaker voice coil 22 of vibrating diaphragm 21 downsides; Magnetic circuit system comprises washer 31, magnet 32 and the basin frame 33 of combination successively, in magnetic circuit system, between the lateral surface of washer 31, magnet 32 and basin frame 33 sidewalls, there is certain interval, this gap is magnetic gap, and voice coil loudspeaker voice coil 22 is contained in this magnetic gap, and the magnetic line of force that magnetic circuit system forms is through voice coil loudspeaker voice coil 22.Wherein voice coil loudspeaker voice coil 22 is entwined by conductive wire conventionally, and as copper-clad aluminum conductor, voice coil loudspeaker voice coil 22 is connected after the signal of telecommunication, in the magnetic field forming, can move by the effect of Ampere force at magnetic circuit system.What in voice coil loudspeaker voice coil 22, connect is alternating signal, and the size and Orientation respective signal of suffered Ampere force changes; Be subject to the effect of Ampere force, voice coil loudspeaker voice coil 22 up-down vibration in magnetic gap.Because voice coil loudspeaker voice coil 22 is that secure bond is integrated with vibrating diaphragm 21, the vibration of voice coil loudspeaker voice coil 22 can drive vibrating diaphragm 21 vibrations, thereby produces sound.
Vibrating diaphragm 21 comprises the flat ball top 210 that is positioned at center, and the ring portion 211 that is positioned at ball top, on ball top 210 conventionally in conjunction with the composite bed of rigidity (in figure not label), as shown in Figure 2, composite bed has and has good rigidity and lighter weight, interpolation composite bed can promote the high frequency characteristics of vibrating diaphragm 21, prevents that vibrating diaphragm 21 from producing diaphagras at high band.Ring portion 211 is connected with ball top 210, is arc and flexible structure, and arcuate structure makes the vibrating diaphragm 21 can up-down vibration and tractive vibrating diaphragm 21 that can be not excessive.The present embodiment ring portion 211 is recessed structure, be to the structure near magnetic circuit system curving, this ring portion 211 recessed structures specifically coordinate the concrete structure of loud-speaker diaphragm group to arrange, avoid colliding upper casing 11, utilized fully the space of module internal, thereby be conducive to reduce the thickness of microphone device, increase the overall dimensions of loudspeaker monomer.
Microphone device is the structure of speaking in side, comprise upper casing 11 and lower casing 12, between upper casing 11 and mesochite 12, form the phonate hole 10 of loudspeaker monomer, as depicted in figs. 1 and 2, be positioned at the side of microphone device, this sound hole is positioned at the structure of microphone device side, after microphone device and terminal electronics assembling, phonate hole 10 is also positioned at side, stops up phonate hole 10 in the time of can avoiding electronic installation to keep flat.Wherein, vibrating diaphragm 21 is incorporated on mesochite 12, the edge of concrete ring portion 211 and mesochite 12 combinations, as shown in Figure 1 to Figure 3.Wherein, ring portion 122 is positioned on the port of phonate hole 10 with the part-structure of mesochite 12 junctions.In the situation that microphone device size is certain, in order to increase the size of phonate hole 10, the sound that vibrating diaphragm 21 is produced is radiated the external world more smoothly, and the two ends of the utility model ring portion 211 exist difference in height.Ring portion 211 comprises the ball top connecting portion A being connected with ball top 210, is positioned at ring portion 211 opposite sides and shell joint portion B mesochite 12 secure bond, wherein between ball top connecting portion A and shell joint portion B, has difference in height d, as shown in Figure 2.In conjunction with ring portion 211, it is recessed structure, the position of shell joint portion B is lower than the position shown in the connecting portion A of ball top, be that distance between shell joint portion B and basin frame 33 diapires is less than the distance between ball top connecting portion A and basin frame 33 diapires, as Fig. 2 and Fig. 3 common as shown in.
Preferably, in the number range of the difference in height d between ball top connecting portion A and shell joint portion B between 0.2mm to 0.6mm, difference in height d can guarantee the acoustical behavior of vibrating diaphragm in above-mentioned scope.
Preferably, the height at the ball top 210 of vibrating diaphragm 21 is identical with the ball top residing height of connecting portion A.But be not limited to this structure.
The upside of the utility model phonate hole 10 is an end face of upper casing 11, the downside of phonate hole 10 is an end face of mesochite 12, because upper casing 11 need to have certain thickness in order to guarantee the intensity of housing, can only, by reducing the height of mesochite 12, realize the maximization of phonate hole 10; Accordingly, also to reduce with the position of the ring portion 211 of mesochite 12 combinations, in order not affect the size of monomer, the above-mentioned structure with difference in height is arranged to in the two ends of ring portion 211.This ring portion 211 two ends have the structure of difference in height, can make the size of phonate hole increase, and are conducive to increase the size of monomer simultaneously, thereby have effectively promoted the acoustical behavior of microphone device.
The upside of vibrating diaphragm 21 is the upper casing 11 in protection framework; upper casing 11 comprises plastic body; the center of upper casing 11 is injected with sheet metal 110, compares with plastic material, and metal material can reach desirable strength when thinner thickness; therefore; the structure of this upper casing 11 injection moulding sheet metals 110, can reduce the thickness of microphone device or the inner space that can increase microphone device in the situation that microphone device thickness is certain; thereby can increase the size of loudspeaker monomer, improving product acoustical behavior.Mesochite 12 is magnetic circuit system fixedly, between upper casing 11 and mesochite 12, by the mode secure bond of bonding or ultrasonic bonding, by upper casing 11 and mesochite 12, accommodates fixedly loudspeaker monomer.Vibrating diaphragm 21 is the front operatic tunes and the rear operatic tunes by the spatial separation of microphone device inside, the front operatic tunes is the space surrounding between vibrating diaphragm 21 upsides (away from voice coil loudspeaker voice coil 22 1 sides) and upper casing 11, mesochite 12, the front operatic tunes is communicated with phonate hole 10, make sound can be radiated the external world, but be not limited to this structure, also can be communicated with phonate hole 10 for the rear operatic tunes.The rear operatic tunes is the operatic tunes that vibrating diaphragm 21 forms near magnetic circuit system one side, and after traditional structure, the operatic tunes, for the structure of sealing, is provided with passive sound location in the operatic tunes after the utility model.
As shown in Figure 1, in the rear operatic tunes of the utility model microphone device, be provided with two passive radiators: passive radiator 51 and passive radiator 52.Passive radiator 51 and the structure of passive radiator 52 for be arrangeding in parallel, two passive radiators are oppositely arranged, and surround a cavity between passive radiator 51 and passive radiator 52.The passive radiator 51 of the present embodiment and passive radiator 52 are identical structure, but are not limited to this identical structure.When the sound wave that in loudspeaker monomer, vibrating diaphragm 21 rear sides produce flow to passive sound location, be passed to respectively passive radiator 51 and passive radiator 52 away from the other side's a side, be that air-flow is divided into two parts, be passed to respectively the upside of passive radiator 51 and the downside of passive radiator 52, the phonate hole that the air in the cavity between two passive radiators is extruded by passive sound location is communicated to the external world.This structure that passive radiator is set in the rear operatic tunes, can make full use of the space of the rear operatic tunes, and the sound wave after utilizing in the operatic tunes makes passive radiator vibration sounding, produces bass, thereby has promoted the bass effect of whole microphone device.
As shown in Figure 1, the rear operatic tunes of microphone device is mainly surrounded by mesochite 12 and lower casing 13.Equally, in order to make full use of the space of microphone device, position over against passive radiator 51 on mesochite 12 is injected with sheet metal 121, position over against passive radiator 52 on same lower casing 13 is injected with injection moulding sheet metal 131, this structure at passive radiator 51 and the larger position injection moulding sheet metal of passive radiator 52 Oscillation Amplitudes can increase the height (space) of correspondence position, for the vibration of two passive radiators provides enough spaces, thereby can guarantee the acoustical behavior of microphone device.
In addition, on mesochite 12, the position of corresponding phonate hole 10 is provided with reinforcement 120, and reinforcement 120 can increase the structural strength at phonate hole 10 places, prevents that subsiding from appearring in upper casing 11 and/or mesochite 12.
Above with reference to accompanying drawing, in the mode of example, described according to the microphone device the utility model proposes.But, it will be appreciated by those skilled in the art that the microphone device proposing for above-mentioned the utility model, can also on the basis that does not depart from the utility model content, make various improvement.Therefore, protection range of the present utility model should be determined by the content of appending claims.
Claims (8)
1. a microphone device, comprise loudspeaker monomer and accommodate the fixedly shell of loudspeaker monomer, described loudspeaker monomer involving vibrations system and magnetic circuit system, described vibrational system comprises vibrating diaphragm and the voice coil loudspeaker voice coil that is incorporated into vibrating diaphragm one side, described magnetic circuit system forms the magnetic gap that holds voice coil loudspeaker voice coil; The operatic tunes before forming between described vibrating diaphragm front side and described shell, the operatic tunes after forming between described vibrating diaphragm rear side and described shell, is characterized in that,
The side of described shell is provided with phonate hole, and described phonate hole is communicated with the described front operatic tunes;
Described vibrating diaphragm comprises the ball top that is positioned at center and the ring portion that is positioned at marginal position, edge and the described shell secure bond of described ring portion, the side that described ring portion is connected with described ball top is provided with ball top connecting portion, and the side that described ring portion is combined with described shell is provided with shell joint portion;
And the part-structure of described shell joint portion is positioned on the port of described phonate hole, between described shell joint portion and described ball top connecting portion, there is difference in height.
2. microphone device according to claim 1, is characterized in that, described shell comprises upper casing and mesochite, forms described phonate hole between described upper casing and mesochite;
The ring portion of described vibrating diaphragm is incorporated on described mesochite, and described mesochite forms described shell joint portion with the position that described ring portion is combined, and the position of described shell joint portion is lower than the position of described ball top connecting portion.
3. microphone device according to claim 2, is characterized in that, the ring portion of described vibrating diaphragm is recessed structure, to the curving near described magnetic circuit system.
4. microphone device according to claim 2, is characterized in that, the part over against described vibrating diaphragm on described upper casing is injected with sheet metal.
5. microphone device according to claim 1, is characterized in that, in the number range of the difference in height between described ball top connecting portion and described shell joint portion between 0.2mm to 0.6mm.
6. microphone device according to claim 1, is characterized in that, the ball top of described vibrating diaphragm is identical with the residing height of described ball top connecting portion.
7. microphone device according to claim 1, is characterized in that, in the described rear operatic tunes, is also provided with passive sound location, and described passive sound location comprises two passive radiators that are oppositely arranged.
8. microphone device according to claim 2, is characterized in that, described mesochite is provided with reinforcement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420358317.8U CN204014043U (en) | 2014-06-30 | 2014-06-30 | Microphone device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420358317.8U CN204014043U (en) | 2014-06-30 | 2014-06-30 | Microphone device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204014043U true CN204014043U (en) | 2014-12-10 |
Family
ID=52053979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420358317.8U Withdrawn - After Issue CN204014043U (en) | 2014-06-30 | 2014-06-30 | Microphone device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204014043U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104202700A (en) * | 2014-06-30 | 2014-12-10 | 歌尔声学股份有限公司 | Voice device |
| CN105704626A (en) * | 2016-03-29 | 2016-06-22 | 歌尔声学股份有限公司 | Ultrathin loudspeaker module |
| WO2024087488A1 (en) * | 2022-10-28 | 2024-05-02 | 深圳市韶音科技有限公司 | Sound generation component |
-
2014
- 2014-06-30 CN CN201420358317.8U patent/CN204014043U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104202700A (en) * | 2014-06-30 | 2014-12-10 | 歌尔声学股份有限公司 | Voice device |
| CN104202700B (en) * | 2014-06-30 | 2019-01-01 | 歌尔股份有限公司 | Microphone device |
| US10178481B2 (en) | 2014-06-30 | 2019-01-08 | Goertek Inc. | Sound producing device |
| CN105704626A (en) * | 2016-03-29 | 2016-06-22 | 歌尔声学股份有限公司 | Ultrathin loudspeaker module |
| WO2024087488A1 (en) * | 2022-10-28 | 2024-05-02 | 深圳市韶音科技有限公司 | Sound generation component |
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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 Industrial Development Zone, Shandong, China, No. 268 Patentee after: Goertek Inc. Address before: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee before: Goertek Inc. |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141210 Effective date of abandoning: 20190101 |