CN209267803U - Sounding device - Google Patents
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- CN209267803U CN209267803U CN201822151696.4U CN201822151696U CN209267803U CN 209267803 U CN209267803 U CN 209267803U CN 201822151696 U CN201822151696 U CN 201822151696U CN 209267803 U CN209267803 U CN 209267803U
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- voice coil
- sounding device
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Abstract
The utility model relates to a kind of sounding devices.The sounding device includes: vibrating diaphragm component；Skeleton, the skeleton are connected to the side of the vibrating diaphragm component, and the skeleton has annular sidewall；First voice coil and the second voice coil, first voice coil and second voice coil are sequentially sleeved at the outside of the annular sidewall along the direction that the vibrating diaphragm component vibrates.One effect of the utility model is, improves the acoustic quality of sounding device.
Description
Technical field
The utility model relates to electroacoustic switch technology fields, more specifically, the utility model relates to a kind of sounding devices.
Background technique
In recent years, consumer electronics product is rapidly developed, and the electronic equipments such as smart phone, VR equipment are consumed
The approval of person, is widely used.Those skilled in the art are also corresponding to relevant auxiliary products such as earphone etc. to carry out
It improves, to meet the performance requirement of electronic product, meets consumer to the needs of properties of product.
Sounding device is electroacoustic transduction component important in consumer electronics product, as loudspeaker, earpiece, earphone etc.
It is widely used.With the performance improvement of electronic product, the improvement of the acoustical behavior in relation to sounding device is also inevitable
Trend.
In general, voice coil is connect by lead with vibrating diaphragm in sounding device, voice coil stress in magnetic field will drive vibrating diaphragm together
Vibration makes vibrating diaphragm generate sound.But when voice coil vibrations, what voice coil leads generated pulls active force, can generate to the vibration of voice coil
Inhibition leads to voice coil unbalance stress, this has an adverse effect to the stability and balance of voice coil vibrations, increases sounding
There is the risk of polarization, sensitivity decline in device, seriously affects the acoustic quality of sounding device.
Therefore, it is necessary to a kind of novel sounding device be proposed, to overcome drawbacks described above.
Utility model content
One purpose of the utility model is the new technical solution for a kind of sounding device.
One aspect according to the present utility model provides a kind of sounding device, which includes:
Vibrating diaphragm component；
Skeleton, the skeleton are connected to the side of the vibrating diaphragm component, and the skeleton has annular sidewall；
First voice coil and the second voice coil, first voice coil and second voice coil are along the direction that the vibrating diaphragm component vibrates
It is sequentially sleeved at the outside of the annular sidewall.
Optionally, further includes: centring disk, the centring disk are arranged between the vibrating diaphragm component and the skeleton, institute
Stating on centring disk, there is pad, first voice coil and second voice coil to be electrically connected with pad formation.
Optionally, first voice coil and second voice coil are in parallel；
Alternatively, first voice coil and second voice coil series connection.
Optionally, the upper surface of the skeleton is connect with the centring disk.
Optionally, further includes: shell, the skeleton and the voice coil are housed in the shell, the vibrating diaphragm component
Edge connects on the housing, has pad, first voice coil and second voice coil and the pad on the shell
Form electrical connection.
Optionally, first voice coil leads to two first leads, and second voice coil leads to two the second leads,
First voice coil is in parallel with second voice coil.
Optionally, the pad include two the first pads and two the second pads, one of them described first pad with
One group of pad of composition is arranged side by side in one second pad, another described first pad and another described second pad are simultaneously
Row's setting another group of pad of composition, two groups of pads are centrosymmetric distribution relative to the center of the shell；
Two first leads are electrically connected with two first pads respectively, and two second leads are respectively with two
A second pad electrical connection.
Optionally, the skeleton includes central part and edge part, and the centre is in the central area of the skeleton, institute
It states central part and extends outward to form edge part, the edge part is connect with the surface of the vibrating diaphragm component；
The annular sidewall is downwardly extending from the edge part, the upper surface and the edge part of first voice coil
Connection.
Optionally, first voice coil is identical with the shape of second voice coil.
Optionally, first voice coil and second voice coil are formed using identical voice coil conducting wire coiling, the voice coil
The diameter of conducting wire is 0.04mm-0.1mm.
Optionally, first voice coil and second voice coil are less than 0.3mm along itself radial thickness.
Optionally, the first voice coil described in coiling is identical with the number of turns of the voice coil conducting wire of second voice coil.
One of the utility model has technical effect that, by the way that two voice coils are arranged in the magnetic circuit system of sounding device,
And two voice coils are sequentially sleeved on skeleton.Polarization is reduced to realize, the effect for promoting sounding device sensitivity, reducing distortion
Fruit.
By the detailed description referring to the drawings to the exemplary embodiment of the utility model, the utility model it is other
Feature and its advantage will become apparent.
Detailed description of the invention
The attached drawing for constituting part of specification describes the embodiments of the present invention, and uses together with the description
In explanation the principles of the present invention.
Fig. 1 is the sectional view for the sounding device that one embodiment of the utility model provides；
Fig. 2 is the partial enlarged view of Fig. 1；
Fig. 3 is the top view for the sounding device that one embodiment of the utility model provides；
Fig. 4 is the partial enlarged view of Fig. 3.
Fig. 5 is the sectional view for the sounding device that the utility model another embodiment provides；
Fig. 6 is the partial enlarged view of Fig. 5；
Fig. 7 is the top view for the sounding device that the utility model another embodiment provides.
Specific embodiment
The various exemplary embodiments of the utility model are described in detail now with reference to attached drawing.It should also be noted that unless another
It illustrates outside, the component and the positioned opposite of step, numerical expression and numerical value otherwise illustrated in these embodiments is unlimited
The scope of the utility model processed.
Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to this is practical
Novel and its application or any restrictions used.
Technology and equipment known to person of ordinary skill in the relevant may be not discussed in detail, but in appropriate situation
Under, the technology and equipment should be considered as part of specification.
It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.
Fig. 1 shows the sectional view of the sounding device of one embodiment of the utility model offer, and Fig. 2 is the part of Fig. 1
Enlarged drawing, the voice coil in the sounding device is made of upper and lower two voice coils as can be seen from Figure 2, and Fig. 3 is bowing for the sounding device
View, Fig. 4 are the partial enlarged views of Fig. 3, show the pad structure in sounding device for connecting with voice coil, and Fig. 5 is shown
The sectional view for the sounding device that the utility model another embodiment provides, Fig. 6 is the partial enlarged view of Fig. 5, can from Fig. 6
To find out that the voice coil in the sounding device is made of upper and lower two voice coils, each voice coil leads to voice coil leads, and Fig. 7 is shown
The structure that voice coil leads are connect with pad in this embodiment.Now by taking Fig. 1 to Fig. 7 as an example, to the utility model sounding device
Structure, principle etc. described in detail.
The utility model provides a kind of sounding device, which is divided into the first voice coil and the second voice coil for voice coil,
In different embodiments, the two voice coils can be electrically connected with the pad formation in sounding device respectively, alternatively, being also possible to
It is thought of as being electrically connected with the pad on shell by voice coil leads.The voice coil in sounding device can be mitigated using both structures
The problems such as unbalance stress in substantially vibration processes, the polarization of initiation, sounding device sensitivity decline, are distorted.
In the present embodiment, sounding device includes: vibrating diaphragm component 10, skeleton 20, the first voice coil 30 and the second voice coil 40.?
In different embodiments, vibrating diaphragm component 10 can be vibrating diaphragm ontology, be also possible to be made of vibrating diaphragm ontology and top dome portion
Structure.As shown in Figure 1, the skeleton 20 is connected to the side of the vibrating diaphragm component 10, the skeleton 20 has annular sidewall.Bone
Frame is arranged inside voice coil, for being fixedly connected with voice coil.
Further, first voice coil 30 and second voice coil 40 along the direction that the vibrating diaphragm component 10 vibrates successively
It is set in the outside of the annular sidewall.When making the first voice coil 30 and the second voice coil 40, hot melt adhesive is had on voice coil conducting wire,
In winding process, with the cooling of hot melt adhesive, solidification, finally, the inner wall of the first voice coil and the second voice coil can be with the ring-type of skeleton
Side wall is closely combined together.As depicted in figs. 1 and 2, the inner wall of first voice coil 30 and second voice coil 40 is fixed
On the skeleton 20.Wherein, the first voice coil 30 is close to the skeleton 20, positioned at the lower section of the skeleton 20, second sound
Circle 40 is spaced certain gap with first voice coil 30, positioned at the lower section of first voice coil 30.First voice coil and the second sound
Circle is suspended from jointly in the magnetic gap of magnetic circuit magnet, can be passed through voice signal, and vibrating diaphragm ontology is driven to vibrate together.
In addition, as described in Figure 1, to those skilled in the art, sounding device provided by the utility model further includes
Shell 60, washer 70, magnet 80, frame etc. 90, no longer illustrates herein.
Sounding device provided in this embodiment, by the way that two voice coils are arranged in the magnetic circuit system of sounding device, and by two
A voice coil is sequentially sleeved on skeleton.In this way, the first voice coil and the second voice coil can be made to do in magnetic circuit system in vertical direction
Linear vibration reduces polarization to realize, the effect for promoting sounding device sensitivity, reducing distortion.
In a kind of possible embodiment, the sounding device further include: centring disk, centring disk are that setting is being sent out
In acoustic device, voice coil is avoided to deviate center in vibration processes, does not generate collision with the other component in sounding device.
As shown in Figures 1 to 4, in the present embodiment, the vibrating diaphragm component 10 and the skeleton is arranged in the centring disk 50
Between 20, on the centring disk 50 have pad 51, pad 51 as be connected component, for first in sounding device
Voice coil 30 and the second voice coil 40 form connection.When voice coil vibrations, centring disk can make voice coil in vibration, without departing from center
Position；What voice coil was divided into two is connected on pad, can uniformly, shaking of the balance voice coil in vibration, with realize reduce it is inclined
The effect of vibration.
In sounding device, on the one hand, important component of the voice coil as vibrational system, its property relationship sounding
The quality of device.Wherein, the power of the resistance value of voice coil and sounding device, sound quality are related.On the other hand, in sounding device size
It limits in more and more harsh situation, in order to meet better acoustical behavior, needs further to promote magnetic circuit system in sounding device
Magnetic field strength and efficiency.The circuit connecting mode that the present embodiment passes through optimization the first voice coil and the second voice coil and pad；Together
When, reduce the first voice coil and the second voice coil along itself radial thickness, to promote the acoustical behavior of sounding device.
Optionally, first voice coil and second voice coil are in parallel.It will be appreciated by persons skilled in the art that working as institute
It states the first voice coil and when second voice coil is connected in parallel on the pad, compared to concatenated connection type, the total resistance value of voice coil becomes
It is small.And voice coil is usually to be formed by copper filament wound, the sectional dimension and resistance value of copper wire line are in inverse ratio, i.e. the line footpath of copper wire line is got over
Small, resistance value is bigger.By the way of in parallel, total resistance value of voice coil can reduce, thus using the smaller copper filament wound of line footpath
Voice coil.Therefore, in the case where total resistance value remains unchanged, it can reduce voice coil along itself radial thickness, to reach diminution magnetic
Gap enhances the effect of magnetic field performance.This mode improves magnetic circuit efficiency, has in the case where sounding device size constancy
Help promote the sensitivity of sounding device, reduce distortion.
Alternatively, first voice coil and second voice coil can also be electrically connected using concatenated mode with the pad.
The present embodiment to the connection type of the first voice coil and the second voice coil and the pad with no restrictions.
As depicted in figs. 1 and 2, in the present embodiment, the upper surface of the skeleton 20 is connect with the centring disk 50.Example
Such as, skeleton can be bonded on the surface of the centring disk using modes such as glue, gums.It can effectively ensure in this way
One voice coil and the second voice coil are in vibration processes without departing from center.Centring disk can also adjust together with vibrational system
Vibrational system it is pliable, improve the low frequency characteristic of sounding device.
Optionally, the centring disk includes: central part, fixed part and cantilever, and the fixed part is looped around the center
Around portion, the fixed part is connect with the central part by the cantilever, and the central part is configured to relative to described
Fixed part vibration, to ensure that the first voice coil and the second voice coil are only subjected to displacement in the longitudinal direction of magnetic circuit system, avoids generating lateral position
It moves, reduces the distortion of the polarization of sounding device.Wherein, first voice coil is connected on the central part, and setting can be in this way
Ensure the first voice coil and the second voice coil in vibration processes without departing from center.In addition, centring disk can also and vibration system
Unify, adjust the pliable of vibrational system, improves the low frequency characteristic of sounding device.
It is straight convenient for being located at the first voice coil below central part and the second voice coil in addition, the pad is located at the central part
It connects and the pad solder.
Further, the pad 51 includes the first pad 511 and the second pad 512.As shown in Figure 3 and Figure 4, described
One pad 511 and second pad 512 is opposite is arranged on the surface of the central part.First voice coil 30 is led to
Two first leads, second voice coil 40 lead to two the second leads, the first lead and described second
Lead is welded to connect on first pad 511, and another Zhi Suoshu first lead and second lead are welded to connect in institute
It states on the second pad 512.Two leads drawn respectively in first voice coil and the second voice coil, are evenly distributed on voice coil, two groups
Lead from the first voice coil and the second voice coil is in parallel with pad, improves magnetic circuit efficiency, facilitates the spirit for promoting sounding device
Sensitivity reduces distortion.
Preferably, first contact and second that is electrically connected is additionally provided on the fixed part to be electrically connected contact, first pad with
Described first contact that is electrically connected is electrically connected by the circuit that is laid in the centring disk, second pad and second electricity
Tie point is electrically connected by the circuit being laid in the centring disk.In this way, external circuit can be electrically connected contact by first
It is connected with second contact that is electrically connected with the first voice coil and the second voice coil.In practical applications, sounding device provided by the utility model
It needs to be assembled in electronic equipment, for example, being assembled in the equipment such as mobile phone, computer, earphone.The sounding device is needed from other
Voice signal is received in equipment converts sound for voice signal again.By on the fixed part be arranged first be electrically connected contact and
Second is electrically connected contact, can import the voice signal on external equipment on the centring disk, that lays in centring disk is interior
Portion's circuit, then voice signal is transferred on the first voice coil and the second voice coil through the first pad and the second pad.This embodiment party
The advantages of formula, is, by the circuit inside centring disk, reduces the quantity of connecting lead wire in sounding device, is easy to implement electricity
Connection, the stability that sounding device is connect with external equipment are more preferable；Meanwhile helping to reduce the shadow that connecting lead wire moves voice coil
It rings, reduces the problem of dtmf distortion DTMF of polarization, promote the sensitivity of sounding device.
In alternatively possible embodiment, the sounding device further include: shell 60, the skeleton 20 and the sound
Circle is housed in the shell 60, and the edge of the vibrating diaphragm component 10 is connected on the shell 60.As shown in Figures 5 to 7, institute
Stating on shell 60, there is pad 51, first voice coil 30 and second voice coil 40 to be electrically connected with the pad 51 formation.
Specifically, first voice coil 30 leads to two first leads 31, and second voice coil 40 leads to two
Two leads 32.As shown in Figures 5 to 7, two leads that the first voice coil 30 and the second voice coil 40 are drawn respectively, are evenly distributed on sound
On four angles of circle, two groups of leads vacantly in magnetic circuit system, when the first voice coil 30 and the second voice coil 40 in the vertical direction under
When vibration, voice coil leads on four angles can uniformly, the shaking that is generated in vibration of balance voice coil, compare two voice coil leads
Design scheme, the effect that sounding device provided by the present application reduces polarization is more preferable.
Particularly, first voice coil is in parallel with second voice coil.It will be appreciated by persons skilled in the art that working as institute
It states the first voice coil and when second voice coil is connected in parallel on the pad, compared to concatenated connection type, the total resistance value of voice coil becomes
It is small.And voice coil is usually to be formed by copper filament wound, the sectional dimension and resistance value of copper wire line are in inverse ratio, i.e. the line footpath of copper wire line is got over
Small, resistance value is bigger.By the way of in parallel, total resistance value of voice coil can reduce, thus using the smaller copper filament wound of line footpath
Voice coil.Therefore, in the case where total resistance value remains unchanged, it can reduce voice coil along itself radial thickness, to reach diminution magnetic
Gap enhances the effect of magnetic field performance.This mode improves magnetic circuit efficiency, has in the case where sounding device size constancy
Help promote the sensitivity of sounding device, reduce distortion.
Further, the pad includes two the first pads and two the second pads.As shown in fig. 7, one of institute
It states the first pad and one group of pad of composition, another described first pad and another institute is arranged side by side in second pad
It states the second pad and another group of pad of composition is arranged side by side, two groups of pads are centrosymmetric distribution relative to the center of the shell.
Two groups of pads are evenly distributed on the shell, convenient for being electrically connected with two groups of leads formation of the first voice coil and the extraction of the second voice coil
It connects.
As shown in fig. 7, two first leads 31 being located in shell diagonal direction are welded with two described first respectively
Disk electrical connection, in addition two second leads 32 are electrically connected with two second pads respectively, four leads and four welderings
Disk is connected in parallel, and is evenly distributed on four angles of the voice coil, keeps the first voice coil and the second voice coil stress in vibration equal
Weighing apparatus avoids generating lateral displacement, reduces hair to ensure that the first voice coil and the second voice coil are only subjected to displacement in the longitudinal direction of magnetic circuit system
The distortion of the polarization of acoustic device.
Optionally, the skeleton includes central part and edge part, vibrating diaphragm component described in the central part face, the center
Portion extends outward to form edge part, and the edge part is connect with the surface of the vibrating diaphragm component.As shown in Figure 5 and Figure 6, the bone
Frame annular sidewall is downwardly extending from the position close to the edge part, the upper surface and the edge part of first voice coil
Connection.The centre of skeleton can functionally bear the function of reinforcement part in the lower section of the vibrating diaphragm component, reduce vibration
Dynamic mass of system plays the role of adjusting acoustical behavior.
Further, first voice coil is identical with the second voice coil shape.In sounding device provided in this embodiment,
First voice coil 30 is identical with 40 shape of the second voice coil, size, the first voice coil 30 and second voice coil described in coiling
The number of turns of 40 voice coil conducting wire is also identical.On the one hand, the voice coil in magnetic circuit system when the vibrations are up and down, identical size, shape
The first voice coil and the second voice coil in the magnetic gap that width determines, will not be collided with the generations such as magnet, the washer of voice coil two sides；
On the other hand, the first voice coil of same size and the second voice coil also contribute to reduce magnetic gap, further increase centring magnet with
And the size of washer, expand the size of magnetic circuit system, this facilitates the utilization rate and sounding that promote sounding device magnetic circuit system
The acoustic quality of device.
Optionally, first voice coil 30 and second voice coil 40 are formed using identical voice coil conducting wire coiling, described
The diameter of voice coil conducting wire is 0.04mm-0.1mm.In traditional sounding device, voice coil is usually the sound for being greater than 0.1mm by diameter
Circle conducting wire coiling forms, and the voice coil thickness of this sounding device is big, and the space for occupying magnetic circuit system is also larger.Magnetic field performance and magnetic
Gap is related, in the sounding device of identical size, reduces the magnetic gap of magnetic circuit system, the performance enhancement of magnetic circuit system, and first
Voice coil and the second voice coil become faster to the response speed of input audio signal, this facilitates the sensitivity for promoting sounding device.
In the present embodiment, first voice coil 30 and second voice coil 40 are less than 0.3mm along itself radial thickness.It passes
In the sounding device of system, the resistance value very little of voice coil conducting wire needs to increase the number of turns of voice coil to reach certain resistance value requirement,
In order to solve the contradiction between voice coil the number of turns and volume height, voice coil conducting wire mostly uses multilayer winding.Sounding dress provided in this embodiment
It sets, it is preferred to use diameter is the voice coil conducting wire of 0.04mm, in this way, can be by the first voice coil and the second voice coil along itself radial thickness
Degree control, to reduce magnetic gap, promotes magnetic circuit system efficiency within 0.3mm.
Although being described in detail by some specific embodiments of the example to the utility model, this field
It is to be understood by the skilled artisans that above example merely to be illustrated, rather than in order to limit the scope of the utility model.This
Field it is to be understood by the skilled artisans that can not depart from the scope of the utility model and spirit in the case where, to above embodiments
It modifies.The scope of the utility model is defined by the following claims.
Claims (12)
1. a kind of sounding device characterized by comprising
Vibrating diaphragm component；
Skeleton, the skeleton are connected to the side of the vibrating diaphragm component, and the skeleton has annular sidewall；
First voice coil and the second voice coil, first voice coil and second voice coil along the direction that the vibrating diaphragm component vibrates successively
It is set in the outside of the annular sidewall.
2. sounding device according to claim 1, which is characterized in that further include: centring disk, the centring disk setting
Between the vibrating diaphragm component and the skeleton, there is pad, first voice coil and second voice coil on the centring disk
It is electrically connected with pad formation.
3. sounding device according to claim 2, which is characterized in that first voice coil and second voice coil are in parallel；
Alternatively, first voice coil and second voice coil series connection.
4. sounding device according to claim 2, which is characterized in that the upper surface of the skeleton and the centring disk connect
It connects.
5. sounding device according to claim 1, which is characterized in that further include: shell, the skeleton and the voice coil are received
To hold in the shell, the connection of the edge of the vibrating diaphragm component on the housing, has a pad on the shell, and described first
Voice coil and second voice coil are electrically connected with pad formation.
6. sounding device according to claim 5, which is characterized in that first voice coil leads to two first leads,
Second voice coil leads to two the second leads, and first voice coil is in parallel with second voice coil.
7. sounding device according to claim 6, which is characterized in that the pad includes two the first pads and two the
One group of pad of composition is arranged side by side in two pads, one of them described first pad and second pad, described in another
Another group of pad of composition is arranged side by side in first pad and another described second pad, and two groups of pads are relative in the shell
The heart is centrosymmetric distribution；
Two first leads are electrically connected with two first pads respectively, two second leads respectively with two institutes
State the electrical connection of the second pad.
8. sounding device according to claim 5, which is characterized in that the skeleton includes central part and edge part, described
In the central area of the skeleton, the central part extends outward to form edge part, the edge part and the vibration in centre
The surface of membrane module connects；
The annular sidewall is downwardly extending from the edge part, and the upper surface and the edge part of first voice coil connect
It connects.
9. sounding device according to claim 1 to 8, which is characterized in that first voice coil and described second
The shape of voice coil is identical.
10. sounding device according to claim 9, which is characterized in that first voice coil and second voice coil use
Identical voice coil conducting wire coiling forms, and the diameter of the voice coil conducting wire is 0.04mm-0.1mm.
11. sounding device according to claim 9, which is characterized in that first voice coil and second voice coil are along certainly
The thickness of body radial direction is less than 0.6mm.
12. sounding device according to claim 9, which is characterized in that the first voice coil described in coiling and second voice coil
Voice coil conducting wire the number of turns it is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822151696.4U CN209267803U (en) | 2018-12-20 | 2018-12-20 | Sounding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822151696.4U CN209267803U (en) | 2018-12-20 | 2018-12-20 | Sounding device |
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| Publication Number | Publication Date |
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| CN209267803U true CN209267803U (en) | 2019-08-16 |
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ID=67560716
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| CN201822151696.4U Active CN209267803U (en) | 2018-12-20 | 2018-12-20 | Sounding device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024040720A1 (en) * | 2022-08-22 | 2024-02-29 | 瑞声光电科技(常州)有限公司 | Voice coil and sound production device using same |
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2018
- 2018-12-20 CN CN201822151696.4U patent/CN209267803U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024040720A1 (en) * | 2022-08-22 | 2024-02-29 | 瑞声光电科技(常州)有限公司 | Voice coil and sound production device using same |
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