CN206640790U - A kind of dual-drive speaker for tablet personal computer - Google Patents
A kind of dual-drive speaker for tablet personal computer Download PDFInfo
- Publication number
- CN206640790U CN206640790U CN201720392576.6U CN201720392576U CN206640790U CN 206640790 U CN206640790 U CN 206640790U CN 201720392576 U CN201720392576 U CN 201720392576U CN 206640790 U CN206640790 U CN 206640790U
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- China
- Prior art keywords
- vibrating diaphragm
- magnetic circuit
- support
- dual
- personal computer
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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.)
- Expired - Fee Related
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- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model belongs to speaker technology field, discloses a kind of dual-drive speaker for tablet personal computer, and for solving the problems, such as prior art, there is audiorange is narrow, lower tone.The utility model includes support, two mounting holes are offered on support, magnetic circuit unit is installed in each mounting hole, each mounting hole of support is divided into preceding sound chamber and rear sound chamber by magnetic circuit unit, the bottom of support is provided with sealing bottom, the preceding sound chamber of two magnetic circuit units is an overall structure, mutually isolated by dividing plate between the rear sound chamber of two magnetic circuit units；The hole wall that magnetic circuit unit includes U iron, the outer wall of U iron and mounting hole is fixed, and the indent of U iron is fixedly arranged in the middle of magnet steel, and washer is fixed with the magnet steel, and the top of the washer is provided with the first vibrating diaphragm, and the lower surface of first vibrating diaphragm is connected with voice coil loudspeaker voice coil.
Description
Technical field
The utility model belongs to speaker technology field, and in particular to a kind of dual-drive speaker for tablet personal computer.
Background technology
The operation principle of loudspeaker is the electric current flowed through with voice coil loudspeaker voice coil built-in in the magnetism loop of magnet composition, produced up and down
The driving force in direction, diaphragm oscillations are made air vibration is gone out sound.
There is sealing at the back side of usual loudspeaker, caused sound wave and caused sound wave below above the diaphragm of loudspeaker
Difference be 180 degree.Therefore, due to difference interference sound will be made to disappear if not interdicting its upper and lower sound wave, particularly wavelength
Long low frequency is significant.Therefore preferably method is blocking back side sound wave, and making it, there is no difference interference.
The voice coil loudspeaker voice coil of loudspeaker can produce substantial amounts of heat in use, and gathering for heat can accelerate the swollen of air
The swollen increase for causing sealed chamber pressure, the increase of sealed chamber pressure have and can influence vibration of membrane of shaking, so as to cause tonequality to become
Difference.
In the prior art, the reason for flat board (and other electronic products) is because of space structure and appearance requirement more and more thinner,
The space of conventional loudspeakers is set also further to compress, loudspeaker is obtained more preferable tonequality experience in this case is
Those skilled in the art's urgent problem to be solved.
Utility model content
The utility model provides a kind of use to solve the problems, such as prior art there is audiorange is narrow, lower tone
In the dual-drive speaker of tablet personal computer, while sound press is further expanded, it is possible to increase audiorange so that sound clarity
Spend high, simple and honest；Heat caused by voice coil loudspeaker voice coil can be disperseed in time simultaneously.
To solve technical problem, technical scheme is used by the utility model：
A kind of dual-drive speaker for tablet personal computer, including support, it is characterised in that offer two on the support
Individual mounting hole, magnetic circuit unit is installed in each mounting hole, the magnetic circuit unit divides each mounting hole of support respectively
For preceding sound chamber and rear sound chamber, the bottom of the support is provided with sealing bottom, and the preceding sound chamber of two magnetic circuit units is an entirety
Structure, it is mutually isolated by dividing plate between the rear sound chamber of two magnetic circuit units；The magnetic circuit unit include U iron, U iron outer wall with
The hole wall of mounting hole is fixed, and the indent of U iron is fixedly arranged in the middle of magnet steel, and leaving gap between the inwall of magnet steel and the U iron forms
Magnetic gap, washer is fixed with the magnet steel, the top of the washer is provided with the first vibrating diaphragm, and the lower surface of first vibrating diaphragm connects
It is connected to voice coil loudspeaker voice coil；The periphery of two voice coil loudspeaker voice coils of two magnetic circuit units is additionally provided with the second vibrating diaphragm, and second vibrating diaphragm is in horn-like, and the
The surrounding of two vibrating diaphragms is connected on support.
Thermal vias is offered on the sealing bottom, Damping material layer is installed in the thermal vias.
The thermal vias is uniformly opened on sealing bottom.
The Damping material layer is made by mineral wool or glass fiber.
The size of the second vibrating diaphragm lower end is less than the size of the second vibrating diaphragm upper end；The periphery of second vibrating diaphragm is set successively
Ring portion and fixed part are equipped with, second vibrating diaphragm is connected through fixed part with support.
The thickness in the ring portion is less than the thickness of the second vibrating diaphragm.
The thickness of second vibrating diaphragm is more than the thickness of the first vibrating diaphragm.
The support is additionally provided with for protective cover.
Compared with prior art, the utility model has the advantages that：
Dual-drive speaker provided by the utility model for tablet personal computer includes support, including support, the support
On offer two mounting holes, magnetic circuit unit is installed, the magnetic circuit unit is by each peace of support in each mounting hole
Dress hole is respectively divided into preceding sound chamber and rear sound chamber, and the bottom of the support is provided with sealing bottom, the preceding sound chamber of two magnetic circuit units
It is mutually isolated by dividing plate between the rear sound chamber of two magnetic circuit units for an overall structure；The magnetic circuit unit includes U iron, U
The outer wall of iron and the hole wall of mounting hole are fixed, and the indent of U iron is fixedly arranged in the middle of magnet steel, is stayed between the inwall of magnet steel and the U iron
There is gap to form magnetic gap, be fixed with washer on the magnet steel, the top of the washer is provided with the first vibrating diaphragm, first vibrating diaphragm
Lower surface be connected with voice coil loudspeaker voice coil；The periphery of two voice coil loudspeaker voice coils of two magnetic circuit units is additionally provided with the second vibrating diaphragm, second vibrating diaphragm
In horn-like, the surrounding of the second vibrating diaphragm is connected on support.In TS parameters, BL values are to determine the master of loudspeaker sound press value size
Parameter is wanted, wherein " B " value is magnetic field intensity, " L " value is the length of voice coil loudspeaker voice coil.It can be drawn according to magnetic simulation, it is identical in area
In the case of, single magnetic circuit unit is split as two magnetic circuit units of a size, bigger " B " value can be obtained；Equally
, in the case of voice coil loudspeaker voice coil effective area identical, two voice coil loudspeaker voice coils can obtain bigger " L " value of than one voice coil loudspeaker voice coil, therefore this
Utility model can obtain bigger sound press compared with prior art.
The utility model is by the mutually isolated sound for coming, can preventing two magnetic circuit units of rear sound chamber of two magnetic circuit units
Ripple interferes, and improves the definition of sound.
Heat is disperseed by thermal vias caused by voice coil loudspeaker voice coil, so as to prevent influenceing vibrating diaphragm because air heats expand
Vibration, be easy to improve tonequality.
For the utility model by the first vibrating diaphragm and the structure design of the second folded film, less first vibrating diaphragm of size can simultaneously
Obtain and improve high frequency characteristics, low frequency characteristic during larger-size second vibrating diaphragm can improve, so that the utility model can
Obtain the frequency compared with money；The vibrating diaphragm of the utility model first and the second vibrating diaphragm can increase vibration damping simultaneously, by increasing capacitance it is possible to increase in it is low
The effect of sound so that sound is simpler and more honest.The utility model can also reduce distortion simultaneously, improve the definition of sound, so as to
Further improve the quality of tonequality.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the sectional view schematic diagram at the A-A in Fig. 1；
Marked in figure：1st, support, 2, mounting hole, 3, U iron, 4, magnet steel, 5, washer, 6, voice coil loudspeaker voice coil, the 7, first vibrating diaphragm, 8, second
Vibrating diaphragm, 9, ring portion, 10, protective cover, 11, sealing bottom, 12, preceding sound chamber, 13, rear sound chamber, 14, dividing plate, 15, damping material
Layer.
Embodiment
With reference to embodiment, the utility model will be further described, and described embodiment is only that this practicality is new
Type part of the embodiment, it is not whole embodiments.Based on the embodiment in the utility model, the ordinary skill people of this area
Other embodiments used that member is obtained under the premise of creative work is not made, belong to protection model of the present utility model
Enclose.
With reference to accompanying drawing, the dual-drive speaker provided by the utility model for tablet personal computer includes support 1, the support
1 is evenly distributed with two mounting holes 2, and magnetic circuit unit is provided with each mounting hole 2, and the magnetic circuit unit is every by support 1
One mounting hole 2 is respectively divided into preceding sound chamber 12 and rear sound chamber 13, and the bottom of the support 1 is provided with sealing bottom 11, two magnetic
The preceding sound chamber 12 of road unit is an overall structure, mutually isolated by dividing plate 16 between the rear sound chamber 13 of two magnetic circuit units；
Hole wall of the magnetic circuit unit including U iron 3, the outer wall and mounting hole 2 of U iron 3 is fixed, and the indent of U iron 3 is fixedly arranged in the middle of magnet steel 4,
Gap is left between the inwall of the magnet steel 4 and U iron 3 and forms magnetic gap, washer 5, wherein washer master are fixed with the magnet steel 4
Play magnetic conduction, magnet steel is produces the device in magnetic field, and U iron primarily serves the effect of magnetic conduction；The top of the washer 5 is set
There is the first vibrating diaphragm 7, the lower surface of first vibrating diaphragm 7 is connected with voice coil loudspeaker voice coil 6, and the wherein lower end of voice coil loudspeaker voice coil 6 is located in magnet steel 4 and U iron
In the magnetic gap formed between wall；The periphery of two voice coil loudspeaker voice coils 6 of two magnetic circuit units is additionally provided with the second vibrating diaphragm 8, and described second
Vibrating diaphragm 8 is in horn-like, and the surrounding of the second vibrating diaphragm 8 is connected on support 1.In TS parameters, BL values are decision loudspeaker sound press value
The major parameter of size, wherein " B " value is magnetic field intensity, " L " value is the length of voice coil loudspeaker voice coil.It can be drawn according to magnetic simulation,
In the case of area identical, single magnetic circuit unit is split as two magnetic circuit units of a size, can be obtained bigger " B "
Value；Likewise, in the case of voice coil loudspeaker voice coil effective area identical, two voice coil loudspeaker voice coils can obtain bigger " L " value of than one voice coil loudspeaker voice coil, because
This utility model can obtain bigger sound press compared with prior art.
The utility model comes the rear sound chamber 13 of two magnetic circuit units is mutually isolated, can prevent two magnetic circuit units
Sound wave interferes, and improves the definition of sound.
Thermal vias is offered on the utility model sealing bottom 11, Damping material layer is installed in the thermal vias
15；Heat caused by voice coil loudspeaker voice coil 6 is disperseed by thermal vias, so as to prevent influenceing shaking for vibrating diaphragm because air heats expand
It is dynamic, it is easy to improve tonequality.
As a kind of preferable mode of the utility model, the thermal vias is uniformly opened on sealing bottom 11.
Damping material layer 15 of the present utility model is made by mineral wool or glass fiber or cotton-wool.
As a kind of preferable mode of the utility model, the periphery of second vibrating diaphragm 8 is disposed with ring portion 9 and consolidated
Determine portion, second vibrating diaphragm 8 is connected through fixed part with support 1；Wherein the thickness in ring portion 9 is less than the thickness of the second vibrating diaphragm 8, makees
For a kind of preferable mode of the utility model, between 0.048-0.052mm, the thickness in ring portion exists the thickness of the second vibrating diaphragm 8
Between 0.018-0.020mm.
The thickness of second vibrating diaphragm 8 is more than the thickness of the first vibrating diaphragm 7.By the structure design, can further reduce
Distortion, improve tonequality.
As a kind of preferable mode of the utility model, the support 1 is additionally provided with for protective cover 10, passes through protective cover
10 pair of first vibrating diaphragm and the second vibrating diaphragm are protected.
First vibrating diaphragm and the second vibrating diaphragm can use to be formed by paper or plastic production, and wherein plastics use polypropylene (PP)
It is made.
As a kind of preferable mode of the utility model, the support 1 is additionally provided with for protective cover 10, passes through protective cover
10 pair of first vibrating diaphragm and the second vibrating diaphragm are protected.
Claims (8)
1. a kind of dual-drive speaker for tablet personal computer, including support, it is characterised in that two are offered on the support
Mounting hole, magnetic circuit unit is installed in each mounting hole, each mounting hole of support is respectively divided into by the magnetic circuit unit
Preceding sound chamber and rear sound chamber, the bottom of the support are provided with sealing bottom, and the preceding sound chamber of two magnetic circuit units is an entirety knot
Structure, it is mutually isolated by dividing plate between the rear sound chamber of two magnetic circuit units；The magnetic circuit unit includes U iron, the outer wall of U iron and peace
The hole wall in dress hole is fixed, and the indent of U iron is fixedly arranged in the middle of magnet steel, and gap is left between the inwall of magnet steel and the U iron and forms magnetic
Gap, washer is fixed with the magnet steel, and the top of the washer is provided with the first vibrating diaphragm, the lower surface connection of first vibrating diaphragm
There is voice coil loudspeaker voice coil；The periphery of two voice coil loudspeaker voice coils of two magnetic circuit units is additionally provided with the second vibrating diaphragm, and second vibrating diaphragm is in horn-like, and second
The surrounding of vibrating diaphragm is connected on support.
2. the dual-drive speaker according to claim 1 for tablet personal computer, it is characterised in that on the sealing bottom
Thermal vias is offered, Damping material layer is installed in the thermal vias.
3. the dual-drive speaker according to claim 2 for tablet personal computer, it is characterised in that the thermal vias is equal
Even is opened on sealing bottom.
4. the dual-drive speaker according to claim 2 for tablet personal computer, it is characterised in that the Damping material layer
It is made by mineral wool or glass fiber.
5. according to any described dual-drive speakers for tablet personal computer of claim 1-4, it is characterised in that described second
The size of vibrating diaphragm lower end is less than the size of the second vibrating diaphragm upper end；The periphery of second vibrating diaphragm is disposed with ring portion and fixation
Portion, second vibrating diaphragm are connected through fixed part with support.
6. the dual-drive speaker according to claim 5 for tablet personal computer, it is characterised in that the thickness in the ring portion
Thickness of the degree less than the second vibrating diaphragm.
7. the dual-drive speaker according to claim 1 for tablet personal computer, it is characterised in that second vibrating diaphragm
Thickness is more than the thickness of the first vibrating diaphragm.
8. the dual-drive speaker according to claim 1 for tablet personal computer, it is characterised in that the support is also set up
Have and be used for protective cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720392576.6U CN206640790U (en) | 2017-04-14 | 2017-04-14 | A kind of dual-drive speaker for tablet personal computer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720392576.6U CN206640790U (en) | 2017-04-14 | 2017-04-14 | A kind of dual-drive speaker for tablet personal computer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206640790U true CN206640790U (en) | 2017-11-14 |
Family
ID=60246452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720392576.6U Expired - Fee Related CN206640790U (en) | 2017-04-14 | 2017-04-14 | A kind of dual-drive speaker for tablet personal computer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206640790U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3579578A1 (en) * | 2018-06-07 | 2019-12-11 | Sonion Nederland B.V. | Miniature receiver |
| CN110740409A (en) * | 2019-10-31 | 2020-01-31 | 维沃移动通信有限公司 | electroacoustic device and electronic equipment |
-
2017
- 2017-04-14 CN CN201720392576.6U patent/CN206640790U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3579578A1 (en) * | 2018-06-07 | 2019-12-11 | Sonion Nederland B.V. | Miniature receiver |
| US11051107B2 (en) | 2018-06-07 | 2021-06-29 | Sonion Nederland B.V. | Miniature receiver |
| CN110740409A (en) * | 2019-10-31 | 2020-01-31 | 维沃移动通信有限公司 | electroacoustic device and electronic equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180604 Address after: 638600 Jiang Hua Road, Guanghua Industrial Town, Huaying City, Guang'an, Sichuan Patentee after: SICHUAN GOLDKIOSK TECHNOLOGY CO., LTD. Address before: 636800 Jiang Hua Road, industrial town, Huaying City, Guang'an, Sichuan Patentee before: Sichuan and sounds electronic Science and Technology Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171114 Termination date: 20200414 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |