CN209731559U - A kind of loudspeaker mould group - Google Patents
A kind of loudspeaker mould group Download PDFInfo
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- CN209731559U CN209731559U CN201920634259.XU CN201920634259U CN209731559U CN 209731559 U CN209731559 U CN 209731559U CN 201920634259 U CN201920634259 U CN 201920634259U CN 209731559 U CN209731559 U CN 209731559U
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- bending part
- mould group
- loudspeaker
- sound
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Abstract
The utility model discloses a kind of loudspeaker mould groups, including the shell with cavity and it is installed in the shell and is divided into the cavity loudspeaker monomer of the preceding operatic tunes and the rear operatic tunes, the loudspeaker monomer includes magnetic circuit system, the magnetic circuit system includes conductive magnetic yoke, the conductive magnetic yoke includes body part and bending part, it is provided with rear acoustic aperture on the bending part, is covered with breathable barrier in the rear acoustic aperture.It further include having the sound-absorbing material being filled in the rear operatic tunes, the rear acoustic aperture is connected to inside the loudspeaker monomer and the rear operatic tunes, and the breathable barrier isolation sound-absorbing material enters inside the loudspeaker monomer.The acoustical behavior of loudspeaker mould group is improved in the space of the filling sound-absorbing material of the operatic tunes after the loudspeaker mould group of the utility model can increase to greatest extent.
Description
Technical field
The utility model relates to electroacoustic switch technologies, more specifically, the utility model relates to a kind of loudspeaker mould groups.
Background technique
Loudspeaker mould group includes having the shell of cavity and being installed on the intracorporal loudspeaker monomer of the shell.Loudspeaker monomer
Including magnetic circuit system and vibration component.Magnetic circuit system is provided with magnetic gap, and vibration component includes vibrating diaphragm and voice coil, voice coil setting
After the ac signal for receiving external change in the voice coil in magnetic gap, being set in magnetic gap, in the driving of magnetic field force
Under do the movement of the reciprocating cutting magnetic line of force, drive diaphragm oscillations sounding.
Currently in order to improving the performance of loudspeaker mould group, generally all one filling sound-absorbing material can be set in rear operatic tunes region
Cavity usually breathable barrier is moulded in plastic frame, then frame is inserted to increase the filling space of sound-absorbing material
Enter in mould group, to separate sound-absorbing material.It cannot filling sound-absorbing material however, existing between breathable barrier and loudspeaker monomer
Space.It is thus impossible to realize that filling space maximizes, Performance optimization is further influenced.
Utility model content
The technical problem to be solved by the utility model is to after loudspeaker mould group the operatic tunes can not achieve space maximize it is filling
The problem of sound-absorbing material.
In order to solve the above technical problems, the technical solution of the utility model is: providing a kind of loudspeaker mould group comprising tool
There is the shell of cavity and is installed in the shell and is divided into the cavity loudspeaker monomer of the preceding operatic tunes and the rear operatic tunes, institute
Stating loudspeaker monomer includes magnetic circuit system and vibration component, and the magnetic circuit system includes conductive magnetic yoke, is contained in the conductive magnetic yoke
Magnet and be fixed on the magnetic conductive board of the magnet surface, the conductive magnetic yoke includes body part, and there are two phases for the body part tool
To the first of setting while and when two second be oppositely arranged, corresponding two the first sides of the body part position to close to institute
The direction for stating magnetic conductive board is provided with bending part, is provided with rear acoustic aperture on the bending part, be covered in acoustic aperture after described it is ventilative every
Off member；
The loudspeaker mould group further includes having sound-absorbing material, and the sound-absorbing material is filled in the rear operatic tunes, after described
Acoustic aperture is connected to inside the loudspeaker monomer and the operatic tunes after described, and the breathable barrier is isolated the sound-absorbing material and enters institute
It states inside loudspeaker monomer；The shell is equipped with for the filling sound-absorbing material to the filling aperture in the rear operatic tunes, institute
It states and is covered with sealing element in filling aperture.
Preferably, the magnet includes centring magnet and two side magnet, and the centring magnet is fixed on the conductive magnetic yoke
Center, it is described two to be separately fixed at when being located at the centring magnet two sides close to described second of conductive magnetic yoke in magnet
Position；The magnetic conductive board includes the center magnetic conductive board for being fixed on the centring magnet surface, and is fixed on the side magnet
The side magnetic conductive board on surface.
Preferably, the bending part is perpendicular to the body part；The side magnetic conductive board is annular in shape, and the bending part is fixed on
The inboard portion of the side magnetic conductive board.
Preferably, the side magnetic conductive board close to the side of the bending part be equipped with recessed portion, the bending part with it is described recessed
Glue groove is formed between concave portion, passes through bending part described in the gluing fixing seal in the glue groove and the side magnetic conductive board.
Preferably, the angle between the bending part and the body part is greater than 90 ° and less than 180 °.
Preferably, the positioning bar for supporting the bending part, institute are equipped on the module casing around the loudspeaker monomer
It states positioning bar and the side of the loudspeaker monomer is provided with recessed portion, the bending part and the recessed portion are formed with appearance glue
Slot, by the glue groove gluing by the bending part sealing be fixed on the positioning bar.
Preferably, first side is the short side of the body part, and second side is the long side of the body part.
Preferably, the sound-absorbing material is sound-absorbing particle, and the sound-absorbing particle is one of active carbon or zeolitic material；
The breathable barrier is non-woven fabrics, nylon mesh grid, metal mesh, filter paper, Du Pont's paper, leaching membrane paper or reticulate pattern paper.
Preferably, the breathable barrier is incorporated in the rear acoustic aperture side by way of bonding, injection molding or hot melt
On the bending part.
Preferably, the side magnetic conductive board of the magnetic circuit system is molded on the shell；The vibration component include vibrating diaphragm and
The voice coil being incorporated on the vibrating diaphragm, the edge of the vibrating diaphragm are fixed on the shell.
After above-mentioned technical proposal, the beneficial effects of the utility model are: a kind of loudspeaking provided by the utility model
Device mould group opens up the connection loudspeaker by the way that bending part is arranged in the conductive magnetic yoke of loudspeaker monomer on the bending part
The rear acoustic aperture of monomer inside and the rear operatic tunes, and breathable barrier is covered in the rear acoustic aperture, the operatic tunes after increasing to greatest extent
The acoustical behavior of loudspeaker mould group is improved in the space of filling sound-absorbing material.In addition, being used in one embodiment of the utility model
Three magnetic circuit systems, corresponding conductive magnetic yoke are fitted without the both sides setting bending part of side magnet, and operatic tunes volume after increase improves filling suction
The space of sound material, rear operatic tunes volume increase bring acoustical behavior income and damage much larger than BL caused by two side magnet is removed
It loses.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.
Fig. 1 is loudspeaker mould group explosive view provided by the utility model；
Fig. 2 is the cross-sectional view of loudspeaker mould group provided by the embodiment of the utility model；
Fig. 3 is loudspeaker mould group details enlarged drawing provided by the embodiment of the utility model；
Fig. 4 is conductive magnetic yoke structural schematic diagram provided by the embodiment of the utility model；
Fig. 5 is the cross-sectional view for the loudspeaker mould group that another embodiment of the utility model provides；
Fig. 6 is the loudspeaker mould group details enlarged drawing that another embodiment of the utility model provides.
In figure: 1, shell, 11, filling aperture, 12, sealing element, 121, positioning bar, 21, conductive magnetic yoke, 201, body part, 202,
Bending part, 211, rear acoustic aperture, 212, breathable barrier, 221, centring magnet, 222, side magnet, 231, center magnetic conductive board, 232,
Side magnetic conductive board, 31, vibrating diaphragm, 32, voice coil, 4, the rear operatic tunes, 5, the preceding operatic tunes.
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.
As shown in Figs 1-4, the utility model provides a kind of loudspeaker mould group comprising shell 1 and installation with cavity
In the loudspeaker monomer for being divided into the preceding operatic tunes 5 and the rear operatic tunes 4 in the shell 1 and by the cavity, the loudspeaker monomer packet
Magnetic circuit system and vibration component are included, the magnetic circuit system includes conductive magnetic yoke 21, the magnet being contained in the conductive magnetic yoke 21 and consolidates
Due to the magnetic conductive board of the magnet surface, the conductive magnetic yoke includes body part 201, and the tool of body part 201 is set there are two opposite
First set while and when two second be oppositely arranged, corresponding two the first sides of the body part 201 position to close to institute
The direction for stating magnetic conductive board is provided with bending part 202, is provided with rear acoustic aperture 211 on the bending part 202, it is described after in acoustic aperture 211
It is covered with breathable barrier 212.
The loudspeaker mould group further includes having sound-absorbing material, and the sound-absorbing material is filled in the rear operatic tunes 4, the suction
Part sound energy can be absorbed in sound material, is equivalent to the volume of the operatic tunes 4 after expanding, so that reaching reduces loudspeaker mould group F0Effect
Fruit.Acoustic aperture 211 is connected to inside the loudspeaker monomer after described and the operatic tunes 4 after described, the breathable barrier 212 are isolated described
Sound-absorbing material enters inside the loudspeaker monomer, and the breathable barrier 212 has required for the encapsulation sound-absorbing material
Gas permeability and dust tightness.
The shell 1 is equipped with for the filling sound-absorbing material to the filling aperture 11 in the rear operatic tunes 4, described filling
Sealing element 12 is covered on hole 11, the sealing element 12 is one of stainless steel material, plastics or acrylic board, the sealing
Part 12 is sealed the filling aperture 11, can be avoided sound-absorbing material and deviates from from filling aperture 11, also avoids air-flow and pass through
Filling aperture 11 enters the rear operatic tunes 4, can effectively improve the acoustical behavior of loudspeaker mould group.
Specifically, the magnet includes centring magnet 221 and two side magnet 222, and the centring magnet 221 is fixed on institute
State the center of conductive magnetic yoke 21, what described two side magnet 222 were separately fixed at the conductive magnetic yoke 21 is located at the center magnetic
Position of 221 two sides of iron close to second side.The magnetic conductive board includes being fixed on the center on 221 surface of centring magnet to lead
Magnetic sheet 231, and it is fixed on the while magnetic conductive board 232 on 222 surface of magnet.
The vibration component includes vibrating diaphragm 31 and voice coil 32, is formed between the centring magnet 221 and the side magnet 222
There is magnetic gap, the voice coil 32 is suspended in the magnetic gap, and the voice coil 32 being set in magnetic gap receives external change
After ac signal, the movement of the reciprocating cutting magnetic line of force is done under the driving of magnetic field force, drives 31 vibration sounding of vibrating diaphragm.
In this specific embodiment, loudspeaker monomer only includes the magnetic circuit decorum and vibration component, is not provided with speaker housings, magnetic
Road system and vibration component are directly mounted on the shell 1 of loudspeaker mould group, and specifically, the side magnetic conductive board injection molding is in the shell
On body 1, the edge of the vibrating diaphragm 31 is fixed on the shell 1, and above-mentioned design can further decrease the body of loudspeaker monomer
Product, and then increase back cavity volume, the loading of sound-absorbing material is improved, product low frequency performance is promoted.
The present embodiment uses three magnetic structures, and preferred, and above-mentioned first side is the short side of body part 201, and above-mentioned second
Side is the long side of body part 201, and two side magnet 222 are arranged close to the two sides long side of conductive magnetic yoke body part 201, conductive magnetic yoke ontology
Side magnet is omitted in the two sides short side position in portion 201, and while 4 volume of the operatic tunes after increasing, 4 volume of the operatic tunes increases simultaneously after guarantee
Filling sound-absorbing material bring acoustical behavior income is lost much larger than BL caused by the side magnet 222 of two short sides is removed.
And by the way that bending part 202 is arranged in the conductive magnetic yoke 21, the space of the filling sound-absorbing material of the rear operatic tunes 4 is increased, and in institute
The rear acoustic aperture 211 for posting breathable barrier 212 on bending part 202 is stated, prevents the sound-absorbing material from entering the loudspeaker list
Internal portion.
Specifically, the bending part 202 is perpendicular to the body part 201.The side magnetic conductive board 232 is annular in shape, described curved
The inboard portion of the side magnetic conductive board 232 is fixed in folding part 202.The side magnetic conductive board 232 is close to the side of the bending part 202
Equipped with recessed portion, form glue groove between the bending part 202 and the recessed portion, by the glue groove gluing fix
Seal the bending part 202 and the side magnetic conductive board 232, the side magnetic conductive board 232 by setting recessed portion and bending part 202 it
Between form glue groove, can not only glue sites be made to move down, the perforated area of acoustic aperture 211, mentions after can increasing on bending part 202
For the air circulation effect between the sound-absorbing material in loudspeaker monomer inside and the rear operatic tunes 4, and the glue groove can increase
Big glue-spread keeps the bending part 202 and the side magnetic conductive board 232 fixation stronger.
Specifically, the sound-absorbing material is sound-absorbing particle, and the sound-absorbing particle is one of active carbon or zeolitic material.
The partial size of the zeolitic material is 0.1-0.9mm.The breathable barrier 212 be non-woven fabrics, nylon mesh grid, metal mesh,
Filter paper, Du Pont's paper, leaching membrane paper or reticulate pattern paper.The aperture of the breathable barrier 212 is less than the aperture of the sound-absorbing particle.It is described
Breathable barrier 212 is incorporated in the bending part 202 of rear 211 side of acoustic aperture by way of bonding, injection molding or hot melt
On.
As seen in figs. 5-6, in the other embodiments of the utility model, the bending part 202 and the body part 201 it
Between angle be greater than 90 ° and less than 180 °.Can further increase the area of bending part 202, so after increasing acoustic aperture 211 aperture
Area, and increase the fixed-area of breathable barrier 212 and the bending part 202, it can reduce what breathable barrier 212 fell off
Risk.The positioning bar 121 for supporting the bending part, the positioning are equipped on the module casing 1 around the loudspeaker monomer
Muscle 121 is provided with recessed portion close to the side of the loudspeaker monomer, and the bending part 202 is formed with appearance glue with the recessed portion
Slot, by the glue groove gluing by the bending part 202 sealing be fixed on the positioning bar 121.
In addition, 4 position of the operatic tunes can also be equipped with damping hole after corresponding on the shell 1 of the loudspeaker mould group, damping hole is smaller, sound
Wave can not appear, and damping hole can keep the exchange of air-flow inside and outside loudspeaker mould group, balance the gas of the operatic tunes 4 after loudspeaker mould group
Pressure.Wherein, the position of the corresponding damping hole of shell 1 is provided with damping screen, and metal mesh or screen cloth can be selected in the material of damping screen.Its
In, damping screen can be combined by adhesive tape bonding, hot pressing or Shooting Technique with the sealing of the outer of damping hole.The damping screen dust tightness
Good, good air permeability, acoustic resistance are low, and total harmonic distortion rate is small, are conducive to the sound performance for improving loudspeaker mould group.
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 (10)
1. a kind of loudspeaker mould group comprising there is the shell of cavity and be installed in the shell and be divided into the cavity
The loudspeaker monomer of the preceding operatic tunes and the rear operatic tunes, the loudspeaker monomer include magnetic circuit system and vibration component, the magnetic circuit system
Including conductive magnetic yoke, the magnet being contained in the conductive magnetic yoke and the magnetic conductive board for being fixed on the magnet surface, which is characterized in that
The conductive magnetic yoke includes body part, and there are two that the first side being oppositely arranged and two are oppositely arranged for body part tool
Two sides are provided with bending part to the direction close to the magnetic conductive board in the position on corresponding two the first sides of the body part, described
It is provided with rear acoustic aperture on bending part, is covered with breathable barrier in the rear acoustic aperture；
The loudspeaker mould group further includes having,
Sound-absorbing material, the sound-absorbing material are filled in the rear operatic tunes, and the rear acoustic aperture is connected to inside the loudspeaker monomer
With the rear operatic tunes, the breathable barrier is isolated the sound-absorbing material and is entered inside the loudspeaker monomer；
Filling aperture, the shell is equipped with for the filling sound-absorbing material to the filling aperture in the rear operatic tunes, described filling
Sealing element is covered on hole.
2. a kind of loudspeaker mould group according to claim 1, which is characterized in that the magnet includes centring magnet and two
Side magnet, the centring magnet are fixed on the center of the conductive magnetic yoke, and described two side magnet are separately fixed at conductive magnetic yoke
Be located at the centring magnet two sides close to second side position；
The magnetic conductive board includes the center magnetic conductive board for being fixed on the centring magnet surface, and is fixed on the side magnet surface
Side magnetic conductive board.
3. a kind of loudspeaker mould group according to claim 2, which is characterized in that the bending part is perpendicular to the ontology
Portion；
The side magnetic conductive board is annular in shape, and the bending part is fixed on the inboard portion of the side magnetic conductive board.
4. a kind of loudspeaker mould group according to claim 3, which is characterized in that the side magnetic conductive board is close to the bending part
Side be equipped with recessed portion, form glue groove between the bending part and the recessed portion, pass through the gluing in the glue groove
Bending part described in fixing seal and the side magnetic conductive board.
5. a kind of loudspeaker mould group according to claim 2, which is characterized in that between the bending part and the body part
Angle be greater than 90 ° and less than 180 °.
6. a kind of loudspeaker mould group according to claim 5, which is characterized in that surround the loudspeaking on the module casing
Device monomer is equipped with the positioning bar for supporting the bending part, and the positioning bar is provided with recess close to the side of the loudspeaker monomer
Portion, the bending part and the recessed portion are formed with glue groove, by the glue groove gluing bending part sealed
It is fixed on the positioning bar.
7. a kind of loudspeaker mould group according to any one of claims 1 to 6, which is characterized in that first side is described
The short side in body portion, second side are the long side of the body part.
8. a kind of loudspeaker mould group according to claim 1, which is characterized in that the sound-absorbing material is sound-absorbing particle, institute
Stating sound-absorbing particle is one of active carbon or zeolitic material；
The breathable barrier is non-woven fabrics, nylon mesh grid, metal mesh, filter paper, Du Pont's paper, leaching membrane paper or reticulate pattern paper.
9. a kind of loudspeaker mould group according to claim 8, which is characterized in that the breathable barrier passes through bonding, note
The mode of modeling or hot melt is incorporated on the bending part of the rear acoustic aperture side.
10. a kind of loudspeaker mould group according to any one of claims 2 to 6, which is characterized in that lead on the side of the magnetic circuit system
Magnetic sheet is molded on the shell；
The vibration component includes vibrating diaphragm and the voice coil that is incorporated on the vibrating diaphragm, and the edge of the vibrating diaphragm is fixed on the shell
On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920634259.XU CN209731559U (en) | 2019-05-06 | 2019-05-06 | A kind of loudspeaker mould group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920634259.XU CN209731559U (en) | 2019-05-06 | 2019-05-06 | A kind of loudspeaker mould group |
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| Publication Number | Publication Date |
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| CN209731559U true CN209731559U (en) | 2019-12-03 |
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ID=68673083
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| CN201920634259.XU Active CN209731559U (en) | 2019-05-06 | 2019-05-06 | A kind of loudspeaker mould group |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111163406A (en) * | 2019-12-30 | 2020-05-15 | 歌尔股份有限公司 | Sound production device and speaker module |
| CN112261552A (en) * | 2020-09-30 | 2021-01-22 | 瑞声新能源发展(常州)有限公司科教城分公司 | Sound production device, loudspeaker box and integrated hot press molding method |
| WO2021138954A1 (en) * | 2020-01-09 | 2021-07-15 | 瑞声声学科技(深圳)有限公司 | Loudspeaker enclosure |
| WO2021138953A1 (en) * | 2020-01-09 | 2021-07-15 | 瑞声声学科技(深圳)有限公司 | Speaker enclosure |
| WO2021169465A1 (en) * | 2020-02-28 | 2021-09-02 | 歌尔股份有限公司 | Sound production device |
| WO2021174574A1 (en) * | 2020-03-05 | 2021-09-10 | 瑞声声学科技(深圳)有限公司 | Sound production device |
| WO2021208458A1 (en) * | 2020-04-16 | 2021-10-21 | 歌尔股份有限公司 | Sound production device |
| WO2022006793A1 (en) * | 2020-07-08 | 2022-01-13 | 瑞声声学科技(深圳)有限公司 | Loudspeaker box |
| WO2022257738A1 (en) * | 2021-06-10 | 2022-12-15 | 歌尔股份有限公司 | Sound production device and electronic apparatus |
-
2019
- 2019-05-06 CN CN201920634259.XU patent/CN209731559U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111163406A (en) * | 2019-12-30 | 2020-05-15 | 歌尔股份有限公司 | Sound production device and speaker module |
| WO2021138954A1 (en) * | 2020-01-09 | 2021-07-15 | 瑞声声学科技(深圳)有限公司 | Loudspeaker enclosure |
| WO2021138953A1 (en) * | 2020-01-09 | 2021-07-15 | 瑞声声学科技(深圳)有限公司 | Speaker enclosure |
| WO2021169465A1 (en) * | 2020-02-28 | 2021-09-02 | 歌尔股份有限公司 | Sound production device |
| WO2021174574A1 (en) * | 2020-03-05 | 2021-09-10 | 瑞声声学科技(深圳)有限公司 | Sound production device |
| WO2021208458A1 (en) * | 2020-04-16 | 2021-10-21 | 歌尔股份有限公司 | Sound production device |
| WO2022006793A1 (en) * | 2020-07-08 | 2022-01-13 | 瑞声声学科技(深圳)有限公司 | Loudspeaker box |
| CN112261552A (en) * | 2020-09-30 | 2021-01-22 | 瑞声新能源发展(常州)有限公司科教城分公司 | Sound production device, loudspeaker box and integrated hot press molding method |
| CN112261552B (en) * | 2020-09-30 | 2021-12-24 | 瑞声新能源发展(常州)有限公司科教城分公司 | Sound production device, loudspeaker box and integrated hot press molding method |
| WO2022257738A1 (en) * | 2021-06-10 | 2022-12-15 | 歌尔股份有限公司 | Sound production device and electronic apparatus |
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