CN208739412U - Acoustical generator mould group - Google Patents
Acoustical generator mould group Download PDFInfo
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- CN208739412U CN208739412U CN201821694522.6U CN201821694522U CN208739412U CN 208739412 U CN208739412 U CN 208739412U CN 201821694522 U CN201821694522 U CN 201821694522U CN 208739412 U CN208739412 U CN 208739412U
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- sound
- cavity
- mould group
- absorbing
- acoustical generator
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Abstract
The utility model provides a kind of acoustical generator mould group, by the way that isolated part is arranged in the region of the filling sound-absorbing particle of the rear operatic tunes, so that filling region formed can mutually air circulation two cavitys, even if the intracorporal sound-absorbing particle packing of the chamber when in use, since that air circulation still may be implemented is smooth for the presence of another cavity, improve the contact area of sound-absorbing particle and air, avoid the unsmooth problem of the air-flow as caused by the accumulation of part sound-absorbing particle, so as to play sound-absorbing effect, and the problem of bring F0 difference uneven because of sound-absorbing distribution of particles caused by sound-absorbing particle packing can be prevented.
Description
Technical field
The utility model relates to acoustic-electric switch technology fields.More particularly, to a kind of acoustical generator mould group.
Background technique
As science and technology develops rapidly, requirement of the consumer to electronic product is higher and higher, based on consumer for electricity
The design of the requirement of sub- product, the electronic products such as mobile phone tends to be lightening.Weight of the acoustical generator mould group as portable electronic device
Acoustic element is wanted, is a kind of energy conversion device for completing the conversion between electric signal and acoustical signal.
Acoustical generator mould group includes shell, and acoustical generator monomer is contained in shell, and acoustical generator monomer includes vibrational system and magnetic
Entire mould group inner cavity is divided into the preceding operatic tunes and the rear operatic tunes by road system, acoustical generator monomer.In order to reduce the resonance of acoustical generator mould group
Frequency (F0), spread bandwidth improve the low frequency performance of acoustical generator mould group, and it includes to inhale that technical staff is arranged usually in the rear operatic tunes
The sound-absorbing component of sound material.With development in science and technology, graininess sound-absorbing material is applied in acoustical generator mould group, filling sound-absorbing particle
One filling area can be set in the rear operatic tunes, acoustical generator monomer and filling area is isolated for example, by filling screen cloth etc. in filling area, with
Prevent it is filling or using when sound-absorbing particle enter acoustical generator monomer.But when in use, it often will appear sound-absorbing particle filling
The end regions in area are accumulated, and it is unsmooth that the sound-absorbing particle of accumulation can result in air-flow, can not play sound-absorbing effect not only, can also be because of
Accumulation causes rear operatic tunes volume to reduce, and plays adverse effect (i.e. F0 raising).
Utility model content
In order to solve current acoustical generator mould group when in use, it often will appear sound-absorbing particle packing, the sound-absorbing particle of accumulation
It is unsmooth to can result in air-flow, can not play sound-absorbing effect not only, rear operatic tunes volume can also be caused to reduce because of accumulation, plays opposite
The problem of effect, the utility model provide a kind of acoustical generator mould group, including shell, contain acoustical generator monomer in the shell,
The acoustical generator monomer includes vibrational system and magnetic circuit system, and entire mould group inner cavity is divided into the preceding operatic tunes by the acoustical generator monomer
With the rear operatic tunes, the rear operatic tunes includes the sound-absorbing area for filling sound-absorbing particle, the sound-absorbing area and the acoustical generator monomer
Between be equipped with the first isolated part,
The second isolated part is equipped in the sound-absorbing area, sound-absorbing differentiation is divided into air stream by second isolated part
Logical the first cavity and the second cavity, the sound-absorbing particle are placed in first cavity.
Preferably, first isolated part and/or second isolated part are screen cloth.
Preferably, first cavity includes opposite first end and second end, and first isolated part is neighbouring described
First end setting, second cavity include at least the part for having neighbouring second end setting.
Preferably, the position that sound-absorbing area is corresponded on the shell is provided with recessed portion, and second isolated part covers institute
It states recessed portion fixation and forms second cavity on the housing.
Preferably, the shell includes the upper casing and upper cover for surrounding the sound-absorbing area, and the top surface of the upper casing forms opening,
The upper cover covers the opening and is incorporated on the inner sidewall of the upper casing, and second isolated part is screen cloth, the net
Cloth, which is incorporated on the inner wall of the upper cover, forms the second cavity with the upper cover.
Preferably, the shell includes the upper casing and the first steel disc for surrounding the sound-absorbing area, and the top surface of the upper casing has
Hollow out, first steel disc cover the hollow out of the upper casing, and fix in conjunction with the edge of the hollow out；
The second cavity is formed between second isolated part and first steel disc.
Preferably, second isolated part is screen cloth, and the screen cloth is incorporated in first steel by way of stickup
Piece inner wall；Alternatively,
The screen cloth is incorporated in the upper casing of first steel disc side by way of bonding, injection molding or hot melt
On wall.
Preferably, the upper casing includes the second steel disc for separating the preceding operatic tunes and the rear operatic tunes.
Preferably, the acoustical generator monomer is equipped with the rear acoustic aperture being connected to the rear operatic tunes, and first isolated part covers
Cover the rear acoustic aperture.
Preferably, the acoustical generator monomer is located at the lower section of first cavity, and second cavity is located at described first
Above cavity.
The beneficial effects of the utility model are as follows:
Acoustical generator mould group provided by the utility model, by the way that isolation part is arranged in the region of the filling sound-absorbing particle of the rear operatic tunes
Part so that filling region formed can mutual air circulation two cavitys, sound-absorbing particle is set in one of cavity,
Even if the intracorporal sound-absorbing particle packing of the chamber when in use in this way, since air stream still may be implemented in the presence of another cavity
It is clear and coherent smooth, the contact area of sound-absorbing particle and air is improved, the air-flow as caused by the accumulation of part sound-absorbing particle is avoided
Unsmooth problem so as to play sound-absorbing effect, and can prevent because of sound-absorbing particle caused by sound-absorbing particle packing
The problem of being unevenly distributed bring F0 difference.
Detailed description of the invention
Specific embodiment of the present utility model is described in further detail with reference to the accompanying drawing.
Fig. 1 shows the perspective view of the explosion of acoustical generator mould group in the utility model embodiment.
Fig. 2 shows the right view schematic cross-sections in Fig. 1.
Specific embodiment
In order to illustrate more clearly of the utility model, the utility model is done into one below with reference to preferred embodiments and drawings
The explanation of step.Similar component is indicated in attached drawing with identical appended drawing reference.It will be appreciated by those skilled in the art that below
Specifically described content is illustrative and be not restrictive, and should not be limited the protection scope of the present invention.
The utility model provides a kind of acoustical generator mould group, including shell, and acoustical generator monomer is contained in the shell, described
Acoustical generator monomer includes vibrational system and magnetic circuit system, and entire mould group inner cavity is divided into the preceding operatic tunes with after by the acoustical generator monomer
The operatic tunes, the rear operatic tunes includes the sound-absorbing area for filling sound-absorbing particle, between the sound-absorbing area and the acoustical generator monomer
Equipped with the first isolated part, the second isolated part is equipped in the sound-absorbing area, second isolated part distinguishes the sound-absorbing
It is divided into the first cavity and the second cavity of air circulation, the sound-absorbing particle is placed in first cavity.
Acoustical generator mould group provided by the utility model, by the way that isolation part is arranged in the region of the filling sound-absorbing particle of the rear operatic tunes
Part so that filling region formed can mutual air circulation two cavitys, sound-absorbing particle is set in one of cavity,
Even if the intracorporal sound-absorbing particle packing of the chamber when in use in this way, since air stream still may be implemented in the presence of another cavity
It is clear and coherent smooth, the contact area of sound-absorbing particle and air is improved, the air-flow as caused by the accumulation of part sound-absorbing particle is avoided
Unsmooth problem so as to play sound-absorbing effect, and can prevent because of sound-absorbing particle caused by sound-absorbing particle packing
The problem of being unevenly distributed bring F0 difference.
Preferably, first cavity includes opposite first end and second end, and first isolated part is neighbouring described
First end setting, second cavity include at least the part for having neighbouring second end setting.Since the first isolated part has
Have permeation functions, even if therefore near it sound-absorbing particle accumulation cause Density inhomogeneity, the first isolated part is equivalent to offer
One air circulation region, improves the contact area of the sound-absorbing particle and air near the first isolated part, therefore, second
Cavity includes the part of neighbouring second end, in this way with avoid the influence caused by the accumulation near second end of sound-absorbing particle.
The position that sound-absorbing area is corresponded on the shell is provided with recessed portion, and second isolated part covers the recessed portion
Fixation forms second cavity on the housing.It is appreciated that under the premise of meeting actual process, the second cavity can be with
Arbitrarily devised, as long as meeting the part with neighbouring second end, which can be isolated by the side wall of shell with second
Component surrounds, and can also be surrounded by the roof of shell or the bottom wall of shell with the second isolated part, it might even be possible to by above-mentioned
Combination is formed.
The utility model is described in detail below with reference to Fig. 1 and Fig. 2.
The perspective view of the explosion of acoustical generator mould group in Fig. 1 the utility model embodiment is shown Fig. 2 shows right in Fig. 1 depending on section
It is intended to.Incorporated by reference to shown in Fig. 1 and Fig. 2, the shell of acoustical generator mould group includes the first steel disc 11, upper casing 12 and lower casing 13, institute
The top surface for stating upper casing 12 has hollow out, and first steel disc 11 covers the hollow out of the upper casing 12, and the edge knot with the hollow out
It closes and fixes；The second cavity 72 is formed between second isolated part 32 and first steel disc 11.It is arranged on first steel disc 11
There is the filling aperture 21 for filling sound-absorbing particle and seals the sealing cover 22 of the filling aperture 22.Wherein, acoustical generator monomer 4 will be whole
A mould splits is segmented into the preceding operatic tunes 80 and the rear operatic tunes, and the magnetic circuit system of acoustical generator monomer 4 is in the rear operatic tunes, the rear operatic tunes include with
The sound-absorbing area 70 that acoustical generator monomer 4 is isolated, the sound-absorbing area 70 pass through the first isolated part 31 and the magnetic circuit system in acoustical generator monomer 4
The locating space isolation of system, but air circulation can be carried out.The operatic tunes includes space locating for magnetic circuit system and above-mentioned sound-absorbing after i.e.
Area 70.In the present embodiment, sound-absorbing area 70 includes the first cavity 71 and the second cavity 72, and the first cavity 71 and the second cavity 72 pass through
Flat second isolated part 32 is isolated.In Fig. 1, the second isolated part 32 forms lacking for the arc of an evacuation filling aperture 21
Mouthful.Sound-absorbing particle enters the first cavity by the way that filling aperture 21 is filling, generally fills in the intracorporal sound-absorbing particle of the first chamber
State increases the utilization rate of the first cavity.
In a preferred embodiment, acoustical generator monomer is equipped with the rear acoustic aperture being connected to the rear operatic tunes, the first isolated part
The rear acoustic aperture is covered, the first cavity fills sound-absorbing particle and maximizes the space of the rear operatic tunes, realizes technologic
" complete filling ".
Certainly, it is the technologic filling limit or filling limit that its meaning is perhaps filled up in above-mentioned described filling, in reality
In the technique of border, carried out by filling process filling, the filling amount of sound-absorbing particle is certain filling when reaching generally 80% or more
When amount, can not carry out it is further filling or continue it is filling so that air circulation is poor, sound-absorbing effect is deteriorated instead, therefore,
One maximum filling amount (maximum filling amount is generally unable to reach 100%) can be generally set in technique, the technologic maximum filling
Loading amount is filling in the present embodiment.The advantage being arranged in this way is, increases the filling space of sound-absorbing particle, thus in phase
With under the sound-absorbing particle of quantity, after capable of reducing while the volume of the operatic tunes, guarantee better bass effect.
In addition, sound-absorbing particle can also be filled up completely under certain special demands, i.e. the filling amount of the first cavity is
100%.
In conjunction with Fig. 2 it can be seen that the positional relationship of the first cavity and the second cavity, in the present embodiment, acoustical generator monomer 4
In the lower section of the first cavity 71, the second cavity 72 is located at the top of the first cavity 71.Wherein, the second cavity 72 is in diagram
The part on the left side is above-mentioned second cavity 72 adjacent to the part that second end is arranged, and it will not go into details for the utility model.
The second cavity 72 is located at the top of the first cavity 71, in other achievable embodiments, second in the present embodiment
Cavity can be located at the first cavity lower section, left side or it is above-mentioned be optionally combined, the utility model refuse exhaustion.
In addition, acoustical generator monomer can be located at the side of the first cavity and the second cavity, the utility model is without being limited thereto.
First isolated part and the second isolated part can be screen cloth etc., and the first isolated part can be identical or not
Together, the utility model is with no restrictions.In the present embodiment, the second isolated part be screen cloth, screen cloth can by way of stickup knot
It closes on the inner wall of the first steel disc, the upper casing of the first steel disc side can also be incorporated in by way of bonding, injection molding or hot melt
Inner wall on.
Further, the first isolated part can be fixed in conjunction with mould group upper casing by modes such as injection molding, hot melt, gluings；
Alternatively, in some unshowned embodiments, acoustical generator monomer includes shell, the first separator can also by injection molding, hot melt,
The modes such as gluing are fixed in conjunction with the shell of acoustical generator monomer, the utility model to this with no restrictions.
In some unshowned embodiments, sound-absorbing area can be formed by upper cover and upper casing, and the material of upper cover and upper casing is equal
For plastics, such screen cloth can be incorporated in the inner wall of upper cover or the side wall of upper casing by way of hot melt.
Further, in an alternate embodiment of the invention, the top surface of the upper casing forms opening, and the upper cover covers the opening
And be incorporated on the inner sidewall of the upper casing, second isolated part is screen cloth, and the screen cloth is combined by way of hot melt
The second cavity is formed with the upper cover on the inner wall of the upper cover.
What upper cover filled after can be, it is also possible to produce together with upper casing, it, can be first by the second isolation in production
Component is produced on lid, then is fixed in conjunction with upper casing by modes such as assemblings.
In embodiment not shown in the figure, upper casing further includes having the second steel for separating the preceding operatic tunes and the rear operatic tunes
Piece.In the embodiment, the second isolated part can combine and form the second cavity on second steel disc, it is clear that the second chamber at this time
Body is located at the lower section of the first cavity.
In the embodiment of figure 2, the direction of edge towards the rear operatic tunes of the first steel disc 11 is bent to form flanging, flanging and
The edge of second isolated part 32 forms engaging portion, so that the second isolated part 32 surrounds the by the engaging portion and the first steel disc
Two cavitys.
Certainly, in other embodiments, the direction of the edge of the first steel disc operatic tunes backward convexes to form boss, the boss and
The edge of second isolated part forms engaging portion.
Further, acoustical generator mould group shown in Figure 2 is that side is spoken the mould group of mouth structure, but the utility model is not to going out
The position of sound mouth is defined, and outlet sound mouth can be arranged according to specific needs.
In addition, further including that there is circuit thereon by FPCB plate 5 in the present embodiment, to control voice coil energization.
Acoustic pressure of the acoustic aperture 61 for the operatic tunes after adjusting is let out in diagram, prevents diaphragm oscillations to be affected, it is logical to let out acoustic aperture 61
Overdamp 62 seals.
By above-mentioned detailed description, can obviously it know, the utility model passes through in the area of the filling sound-absorbing particle of the rear operatic tunes
Isolated part is arranged in domain, the unsmooth problem of the air-flow as caused by the accumulation of part sound-absorbing particle is avoided, so as to play
Sound-absorbing effect out.
Obviously, the above embodiments of the present invention is merely examples for clearly illustrating the present invention, and
It is not limitations of the embodiments of the present invention, for those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways, all embodiments can not be exhaustive here,
It is all to belong to obvious changes or variations that the technical solution of the utility model is extended out still in the utility model
The column of protection scope.
Claims (10)
1. a kind of acoustical generator mould group, including shell, acoustical generator monomer is contained in the shell, the acoustical generator monomer includes vibration
Entire mould group inner cavity is divided into the preceding operatic tunes and the rear operatic tunes, the rear operatic tunes by dynamic system and magnetic circuit system, the acoustical generator monomer
Include the sound-absorbing area for filling sound-absorbing particle, the first isolation part is equipped between the sound-absorbing area and the acoustical generator monomer
Part, which is characterized in that
The second isolated part is equipped in the sound-absorbing area, sound-absorbing differentiation is divided into air circulation by second isolated part
First cavity and the second cavity, the sound-absorbing particle are placed in first cavity.
2. mould group according to claim 1, which is characterized in that first isolated part and/or second isolation part
Part is screen cloth.
3. mould group according to claim 1, which is characterized in that first cavity includes opposite first end and second
End, first isolated part are arranged adjacent to the first end, and second cavity, which includes at least, has the neighbouring second end to set
The part set.
4. mould group according to claim 1, which is characterized in that the position for corresponding to sound-absorbing area on the shell is provided with recess
Portion, second isolated part cover the recessed portion fixation and form second cavity on the housing.
5. mould group according to claim 1, which is characterized in that the shell includes surrounding the upper casing in the sound-absorbing area and upper
Lid, the top surface of the upper casing form opening, and the upper cover covers the opening and is incorporated on the inner sidewall of the upper casing, described
Second isolated part is screen cloth, and the screen cloth, which is incorporated on the inner wall of the upper cover, forms the second cavity with the upper cover.
6. mould group according to claim 1, which is characterized in that the shell includes the upper casing and for surrounding the sound-absorbing area
The top surface of one steel disc, the upper casing has hollow out, and first steel disc covers the hollow out of the upper casing, and the edge with the hollow out
In conjunction with fixation；
The second cavity is formed between second isolated part and first steel disc.
7. mould group according to claim 6, which is characterized in that second isolated part is screen cloth, and the screen cloth passes through
The mode of stickup is incorporated in the first steel disc inner wall；Alternatively,
The screen cloth is incorporated in the inner wall of the upper casing of first steel disc side by way of bonding, injection molding or hot melt
On.
8. mould group according to claim 6, which is characterized in that after the upper casing includes the separation preceding operatic tunes and is described
Second steel disc of the operatic tunes.
9. mould group according to claim 1, which is characterized in that the acoustical generator monomer be equipped with it is described after the operatic tunes be connected to
Acoustic aperture afterwards, acoustic aperture after the first isolated part covering is described.
10. mould group according to claim 1, which is characterized in that the acoustical generator monomer is located under first cavity
Side, second cavity are located above first cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821694522.6U CN208739412U (en) | 2018-10-18 | 2018-10-18 | Acoustical generator mould group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821694522.6U CN208739412U (en) | 2018-10-18 | 2018-10-18 | Acoustical generator mould group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208739412U true CN208739412U (en) | 2019-04-12 |
Family
ID=66035533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821694522.6U Active CN208739412U (en) | 2018-10-18 | 2018-10-18 | Acoustical generator mould group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208739412U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109195084A (en) * | 2018-10-18 | 2019-01-11 | 歌尔股份有限公司 | Acoustical generator mould group |
| WO2021109185A1 (en) * | 2019-12-02 | 2021-06-10 | 瑞声声学科技(深圳)有限公司 | Loudspeaker cabinet |
| CN114554373A (en) * | 2022-03-29 | 2022-05-27 | 歌尔股份有限公司 | Sound production device, assembly method thereof and electronic equipment |
-
2018
- 2018-10-18 CN CN201821694522.6U patent/CN208739412U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109195084A (en) * | 2018-10-18 | 2019-01-11 | 歌尔股份有限公司 | Acoustical generator mould group |
| CN109195084B (en) * | 2018-10-18 | 2024-05-03 | 歌尔股份有限公司 | Acoustic generator module |
| WO2021109185A1 (en) * | 2019-12-02 | 2021-06-10 | 瑞声声学科技(深圳)有限公司 | Loudspeaker cabinet |
| CN114554373A (en) * | 2022-03-29 | 2022-05-27 | 歌尔股份有限公司 | Sound production device, assembly method thereof and electronic equipment |
| CN114554373B (en) * | 2022-03-29 | 2024-03-12 | 歌尔股份有限公司 | Sound generating device, assembly method thereof and electronic equipment |
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