CN209017302U - Loudspeaker mould group - Google Patents

Abstract

The utility model discloses a kind of loudspeaker mould group, and loudspeaker mould group includes: shell, including upper casing and lower casing, and the upper casing and the lower casing are enclosed accommodating chamber, and the inner wall of the upper casing is equipped with slot；Loudspeaker monomer, in the accommodating chamber, the loudspeaker monomer and the upper casing surround the preceding operatic tunes jointly, and the loudspeaker monomer, the lower casing and the upper casing are enclosed the rear operatic tunes jointly, the shell is equipped with acoustic aperture, and the preceding operatic tunes is connected to the acoustic aperture out；And partition, be set to it is described after the operatic tunes, and will it is described after the operatic tunes every being set as the first back cavity and the second back cavity, the partition and the lower casing integrated injection molding, and the partition and the slot grafting, the loudspeaker monomer are located at first back cavity, second back cavity is filled with sound-absorbing particle.Technical solutions of the utility model can make full use of the space of the rear operatic tunes to improve the acoustical behavior of mould group.

Description

Loudspeaker mould group

Technical field

The utility model relates to sound energy switch technology field, in particular to a kind of loudspeaker mould group.

Background technique

Loudspeaker mould group belongs to the important acoustic element of electronic equipment, for completing electricity as a kind of energy conversion device Conversion between signal and voice signal.In general, loudspeaker mould group includes shell, loudspeaker monomer, loudspeaking are contained in shell Entire mould group inner cavity is separated into two cavitys of the preceding operatic tunes and the rear operatic tunes by device monomer.In order to reduce mould group low frequency, spread bandwidth, Sound-absorbing particle can be filled in the operatic tunes afterwards, and in order to avoid sound-absorbing particle enters in loudspeaker monomer, partition is equipped in the rear operatic tunes, Partition keeps apart sound-absorbing particle with loudspeaker monomer.

Generally, clamping wall is equipped on the inner surface of module shell, partition is gripped by clamping wall, can but be Guarantee that partition is effectively fixed, the height of projection on clamping wall surface inside the shell is generally large, so causes to inside the rear operatic tunes Space hold is excessive, because can only fill less sound-absorbing particle in the hereafter operatic tunes, so that sound-absorbing particle is to mould group acoustics The improvement of performance is poor.

Utility model content

The main purpose of the utility model is to propose a kind of loudspeaker mould group, it is intended to the space of the rear operatic tunes be made full use of to mention The acoustical behavior of high mould group.

To achieve the above object, the utility model proposes loudspeaker mould group, comprising:

Shell, including upper casing and lower casing, the upper casing and the lower casing are enclosed accommodating chamber, and the inner wall of the upper casing is set There is slot；

Loudspeaker monomer is set in the accommodating chamber, and the loudspeaker monomer and the upper casing surround the preceding operatic tunes, institute jointly It states loudspeaker monomer, the lower casing and the upper casing and is enclosed the rear operatic tunes jointly, the shell is equipped with acoustic aperture, before described The operatic tunes is connected to the acoustic aperture out；And

Partition, be set to it is described after the operatic tunes, and will it is described after the operatic tunes every being set as the first back cavity and the second back cavity, the partition with The lower casing integrated injection molding, and the partition and the slot grafting, the loudspeaker monomer are located at first back cavity, Second back cavity is filled with sound-absorbing particle.

Optionally, the upper casing includes bottom wall and peripheral wall, and the bottom wall is oppositely arranged with the lower casing, and the peripheral wall, which encloses, to be set In the periphery of the bottom wall, the lower cover is set to one end far from the bottom wall of the peripheral wall, and the slot includes being located at Part on opposite two wall surface of the peripheral wall.

Optionally, the slot further includes the part on the bottom wall.

Optionally, the lower casing is equipped with filling aperture, and the loudspeaker mould group further includes cover board, described in the cover plate lid conjunction Filling aperture, and the cover board is detachably connected with the lower casing.

Optionally, the partition be equipped with intercommunicating pore, the loudspeaker mould group further includes screen cloth, the screen cloth and it is described every Plate is fixed, and is covered and closed the intercommunicating pore setting.

Optionally, the screen cloth and the partition integrated injection molding.

Optionally, the partition is equipped with hot melt part, the screen cloth and the partition and is fixed by hot melt part hot melt.

Optionally, the screen cloth is adhesively fixed with the partition.

Optionally, the screen cloth is located at the side towards first back cavity of the partition.

Optionally, the partition is equipped with multiple breathable mesh, so that the partition is arranged in mesh-like.

In the utility model, by setting partition by the rear operatic tunes of loudspeaker mould group after being set as the first back cavity and second Chamber, sound-absorbing particle are directly filled into the second back cavity, and sound-absorbing particle, which requires no, to be individually encapsulated, therefore can guarantee sound-absorbing Particles filled each corner in the second back cavity is greatly improved the quantity of sound-absorbing particle, enhances sound-absorbing effect.Also, the Two back cavities are completely cut off by partition and the first back cavity, and sound-absorbing particulate blockage in the second back cavity, can be prevented sound-absorbing particle by partition Into the first back cavity and then enter loudspeaker monomer.Simultaneously as the partition for playing buffer action be it is integrally formed with lower casing, For partition and lower casing split settings, integrally formed mode eliminates subsequent assembling work by mold one-pass molding Sequence simplifies the installation procedure of loudspeaker mould group.For partition and lower casing split settings, in some instances can to consolidate Determine dividing plate is arranged two clamping walls in lower casing inner surface and carrys out gripping diaphragm, since the setting of clamping wall causes rear sound cavity space to subtract It is small, therefore the filling space of sound-absorbing particle is reduced, and the integrally formed mode, it can reduce or even remove from setting for clamping wall It sets, it is thus possible to greatly reduce the occupancy to rear operatic tunes space, increase the filling space of sound-absorbing particle.Furthermore it is inserted by being arranged Slot can play position-limiting action to partition, partition is avoided to shift, can play better isolation for the mode of partition grafting Effect.

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 the structural schematic diagram of one embodiment of the utility model loudspeaker mould group；

Fig. 2 is loudspeaker mould group in Fig. 1 along the cut-away illustration of A-A hatching line；

Fig. 3 is the decomposition diagram of loudspeaker mould group in Fig. 1；

Fig. 4 is the structural schematic diagram of lower casing in Fig. 3；

Fig. 5 is the structural schematic diagram of upper casing in Fig. 3.

Drawing reference numeral explanation:

Label	Title	Label	Title
				10	Shell	131	The preceding operatic tunes
11	Upper casing	132	The operatic tunes afterwards
				111	Clamping wall	1321	First back cavity
112	Slot	1322	Second back cavity
				113	Acoustic aperture out	20	Loudspeaker monomer
114	Bottom wall	30	Isolated part
				115	Peripheral wall	31	Partition
12	Lower casing	311	Intercommunicating pore
				121	Cover board	312	Reinforcing rib
122	Filling aperture	32	Screen cloth
				13	Accommodating chamber

The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise Under every other embodiment obtained, fall within the protection scope of the utility model.

It is to be appreciated that if related in the utility model embodiment directionality instruction (such as upper and lower, left and right, it is preceding, Afterwards ...), then directionality instruction is only used for explaining opposite between each component under a certain particular pose (as shown in the picture) Positional relationship, motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.

In addition, if relating to the description of " first ", " second " etc. in the utility model embodiment, " first ", " the Two " etc. description is used for description purposes only, and is not understood to indicate or imply its relative importance or is implicitly indicated meaning The quantity of the technical characteristic shown." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one A this feature.It in addition, the technical solution between each embodiment can be combined with each other, but must be with ordinary skill Based on personnel can be realized, this technical side will be understood that when the combination of technical solution appearance is conflicting or cannot achieve The combination of case is not present, also not within the protection scope of the requires of the utility model.

The utility model proposes a kind of loudspeaker mould groups, which can be used in earphone, mobile phone etc. being capable of sounding Equipment.

Incorporated by reference to referring to figs. 1 to Fig. 3, loudspeaker mould group includes shell 10 and loudspeaker monomer 20, is formed in shell 10 Accommodating chamber 13, and shell 10 is equipped with the acoustic aperture 113 out being connected to accommodating chamber 13, loudspeaker monomer 20 is set in accommodating chamber 13, and By accommodating chamber 13 every being set as the preceding operatic tunes 131 and the rear operatic tunes 132, acoustic aperture 113 is set to the preceding operatic tunes 131 out.In the present embodiment, loudspeaker Monomer 20 includes vibrational system and magnetic circuit system, and vibrational system includes vibrating diaphragm and the voice coil for being fixed on vibrating diaphragm side, vibrating diaphragm packet Central part, the ring portion around central part setting and the fixed part around the setting of ring portion are included, vibrating diaphragm can also include combining In the composite layer of central part.Magnetic circuit system includes conductive magnetic yoke, and conductive magnetic yoke is equipped with internal magnetic circuit part and exterior portion, the two it Between formed accommodate voice coil magnetic gap.Wherein, in a kind of situation, internal magnetic circuit part includes in the central location of conductive magnetic yoke Heart magnet and the center magnetic conductive board on centring magnet, exterior portion include the side magnet of the marginal position set on conductive magnetic yoke Be set in the while magnetic conductive board on magnet.Loudspeaker monomer 20 may also include auxiliary system, and auxiliary system includes shell, and shell is used Vibrational system and magnetic circuit system are fixed in accommodating.In addition, auxiliary system may also include front cover, front cover is incorporated into the top of shell, Front cover and shell enclose the protect-ing frame structure of loudspeaker monomer 20.Certainly, in some cases, loudspeaker monomer 20 can not also wrap Include auxiliary system.

Referring to Figure 4, further, loudspeaker mould group further includes partition 31, and partition 31 is by the rear operatic tunes 132 every being set as First back cavity 1321 and the second back cavity 1322, partition 31 and 10 integrated injection molding of shell.It is envisioned that due to after first Chamber 1321 is connected to the second back cavity 1322, therefore is equipped with through-hole on partition 31 to play the role of connection.In the present embodiment, raise Sound device monomer 20 is located at the first back cavity 1321, and the second back cavity 1322 is filled with sound-absorbing particle, and sound-absorbing particle is encapsulated in by partition 31 In second back cavity 1322, so that sound-absorbing particle be prevented to enter the first back cavity 1321.In the embodiment, sound-absorbing particle is natural zeolite One or more the mixture therein such as powder, white carbon black, active carbon, certainly, other materials also can be used in sound-absorbing particle, only It wants that sound-absorbing effect can be played.

In the utility model, by setting partition 31 by the rear operatic tunes 132 of loudspeaker mould group every being set as the first back cavity 1321 With the second back cavity 1322, sound-absorbing particle is directly filled into the second back cavity 1322, and sound-absorbing particle, which requires no, to be individually encapsulated, Therefore it can guarantee the particles filled each corner in the second back cavity 1322 of sound-absorbing, be greatly improved the quantity of sound-absorbing particle, Enhance sound-absorbing effect.Also, the second back cavity 1322 is completely cut off by partition 31 and the first back cavity 1321, and partition 31 is by sound-absorbing particle It is blocked in the second back cavity 1322, can prevent sound-absorbing particle from entering the first back cavity 1321 and then enters loudspeaker monomer 20.Meanwhile Partition 31 due to playing buffer action be it is integrally formed with shell 10, compared to partition 31 and 10 split settings of shell Speech, integrally formed mode eliminate subsequent assembling procedure, simplify the installation journey of loudspeaker mould group by mold one-pass molding Sequence.For partition 31 and 10 split settings of shell, in some instances to be capable of fixing partition 31, in 10 inner surface of shell Two clamping walls are set and carry out gripping diaphragm 31, since the setting of clamping wall causes space in the rear operatic tunes 132 to reduce, therefore reduce sound-absorbing The filling space of particle, and the integrally formed mode, can reduce or even remove from the setting of clamping wall, it is thus possible to subtract significantly Few occupancy to rear 132 space of the operatic tunes, increases the filling space of sound-absorbing particle.

Specifically, shell 10 includes upper casing 11 and lower casing 12, and upper casing 11 and lower casing 12 are enclosed accommodating chamber 13, loudspeaker The operatic tunes 131 before monomer 20 and upper casing 11 surround jointly, loudspeaker monomer 20, lower casing 12 and upper casing 11 are enclosed the rear operatic tunes jointly 132.Optionally, it is adhesively fixed between loudspeaker monomer 20 and upper casing 11.In the present embodiment, partition 31 and 12 integrated injection molding of lower casing Molding, one end of the separate lower casing 12 of partition 31 are then abutted with upper casing 11, to realize the first back cavity 1321 and the second back cavity 1322 isolation.In the present embodiment, since partition 31 and lower casing 12 are integrally formed, there is no installations between partition 31 and lower casing 12 Gap, consistency between the two is more preferable, when upper casing 11 and lower casing 12 are assembled, it is only necessary to consider partition 31 and upper casing 11 Between assembly, due to not needing to consider the assembly between partition 31 and upper casing 11 and partition 31 and lower casing 12 simultaneously, Therefore the consistency when being assembled with upper casing 11 is more preferable, is conducive to Automated assembly, gap caused by assembly is less, therefore Product quality is easier to ensure that.

Referring to Figure 5, further, upper casing 11 is equipped with slot 112, slot 112 is located at the rear operatic tunes 132, partition 31 With 112 grafting of slot.In such a way that setting slot 112 is for 31 grafting of partition, position-limiting action can be played to partition 31, avoided Partition 31 shifts, and can play better isolation effect.Optionally, partition 31 is plugged together with 112 close-fitting of slot, to realize Better seal prevents connection gap of the sound-absorbing particle between partition 31 and slot 112 from passing through.In the present embodiment, lower casing 12 Plate-like setting, upper casing 11 are in the cavity-like open towards lower casing 12, and including bottom wall 114 interconnected and peripheral wall 115, bottom wall 114 are oppositely arranged with lower casing 12, and peripheral wall 115 is annular in shape along the periphery extension of bottom wall 114, and lower casing 12 is covered on peripheral wall 115 Separate bottom wall 114 one end.Optionally, slot 112 includes the part on opposite two wall surface of peripheral wall 115, such as , when inserting partition 31 towards upper casing 11, partition 31 can be slided along the slot 112 on peripheral wall 115 for this, inserting on the peripheral wall 115 Slot 112 can play guiding role to the inserting of partition 31.Further, slot 112 further includes the portion on bottom wall 114 Point, partition 31 is inserted into the slot 112 on bottom wall 114, thus by all in addition to the side connecting with lower casing 12 of partition 31 Lateral margin package, therefore better buffer action is played to the first back cavity 1321 and the second back cavity 1322, realize more preferable sealing effect.Tool Body, is equipped with two clamping walls 111 on upper casing 11, and two clamping walls 111 are opposite and interval setting, between two clamping walls 111 between Every composition slot 112.In addition, slot 112 can also be formed by way of removing surfacing on upper casing 11.

Among the above, upper casing 11 and lower casing 12 are bonded or welded, and 11 He of upper casing can be eliminated by the way of being bonded or welded The two better seal effect is realized in the gap of the junction of lower casing 12.In addition, upper casing 11 and lower casing 12 can also be used buckle into Row connection.

Further, lower casing 12 is equipped with filling aperture 122, and loudspeaker mould group further includes cover board 121, and the lid of cover board 121, which closes, to be filled Fill hole 122.In the present embodiment, after assembling upper casing 11 and lower casing 12, sound-absorbing particle can be filled from filling aperture 122 Enter the second back cavity 1322, it is ensured that entire second back cavity 1322 fills full sound-absorbing particle；In addition, cover board 121 is by filling aperture 122 Gai He avoids the leakage of sound-absorbing particle.Optionally, cover board 121 is detachably connected with lower casing 12, to be easy to open cover board 121 To replace sound-absorbing particle.Specifically, settable screw thread at the peritreme of cover board 121 and filling aperture 122 so that cover board 121 with Lower casing 12 is tightened by screw thread；In addition, cover board 121 and lower casing 12 can be also attached by buckle or screw etc..

In some embodiments, partition 31 is equipped with intercommunicating pore 311, so that partition 31 is arranged in frame shaped, loudspeaker mould Group further includes screen cloth 32, and screen cloth 32 and partition 31 are fixed, and covers and close the setting of intercommunicating pore 311, and screen cloth 32 is collectively formed with partition 31 For separating the isolated part 30 of the first back cavity 1321 and the second back cavity 1322.Since screen cloth 32 is easy to process, and net thereon Hole can be made smaller, therefore preferable blocking effect can be played to sound-absorbing particle, furthermore the permeability of screen cloth 32 is preferable, Therefore it can guarantee the smooth circulation of air.Partition 31 substantially reduces the blocking area of partition 31 in the form of frame shaped, can Ensure the circulation of air between the first back cavity 1321 and the second back cavity 1322.Further, partition 31 is equipped with reinforcing rib 312, Reinforcing rib 312 is separately connected the two opposite sides of partition 31, and by intercommunicating pore 311 every being set as two through-holes.Reinforcing rib 312 can be to frame The partition 31 of body shape plays the role of structural strengthening, avoids partition 31 from being squeezed jointly by upper casing 11 and lower casing 12 and deforms.

In the present embodiment, fixed form between screen cloth 32 and partition 31 have it is a variety of, for example, screen cloth 32 and partition 31 1 Body injection molding, the screen cloth 32 as inserts and with partition 31 together injection molding；Alternatively, partition 31 is equipped with hot melt part, net Cloth 32 and partition 31 are heated by hot melt part to be fixed；Alternatively, screen cloth 32 is adhesively fixed with partition 31.In addition, screen cloth 32 and partition 31, which also can be used nail etc., is fixed.

Optionally, screen cloth 32 is located at the side of the first back cavity 1321 of direction of partition 31, and thus, it is possible to avoid screen cloth 32 right The occupancy in space in second back cavity 1322, so that it is guaranteed that more sound-absorbing particles can be accommodated in the second back cavity 1322.

In further embodiments, isolated part 30 can only include partition 31, and partition 31 is equipped with multiple breathable mesh, with Partition 31 is set in mesh-like, so eliminates this component of screen cloth 32, partition 31 itself plays blocking to sound-absorbing particle and makees With.The aperture of breathable mesh is less than the outer diameter of sound-absorbing particle, pierces the first back cavity from breathable mesh to avoid sound-absorbing particle 1321。

The above is only the preferred embodiments of the utility model, and therefore it does not limit the scope of the patent of the utility model, all Under the inventive concept of the utility model, equivalent structure transformation made based on the specification and figures of the utility model, or Directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.

Claims (10)

1. a kind of loudspeaker mould group characterized by comprising

Shell, including upper casing and lower casing, the upper casing and the lower casing are enclosed accommodating chamber, and the inner wall of the upper casing, which is equipped with, to be inserted Slot；

Loudspeaker monomer is set in the accommodating chamber, and the loudspeaker monomer and the upper casing surround the preceding operatic tunes jointly, described to raise Sound device monomer, the lower casing and the upper casing are enclosed the rear operatic tunes jointly, and the shell is equipped with acoustic aperture, the preceding operatic tunes It is connected to the acoustic aperture out；And

Partition, be set to it is described after the operatic tunes, and will it is described after the operatic tunes every being set as the first back cavity and the second back cavity, the partition with it is described Lower casing integrated injection molding, and the partition and the slot grafting, the loudspeaker monomer is located at first back cavity, described Second back cavity is filled with sound-absorbing particle.

2. loudspeaker mould group as described in claim 1, which is characterized in that the upper casing includes bottom wall and peripheral wall, the bottom wall It is oppositely arranged with the lower casing, the peripheral wall encloses the periphery set on the bottom wall, and the lower cover is set to the separate of the peripheral wall One end of the bottom wall, the slot include the part on opposite two wall surface of the peripheral wall.

3. loudspeaker mould group as claimed in claim 2, which is characterized in that the slot further includes the portion on the bottom wall Point.

4. loudspeaker mould group as described in claim 1, which is characterized in that the lower casing is equipped with filling aperture, the loudspeaker Mould group further includes cover board, and the cover plate lid closes the filling aperture, and the cover board is detachably connected with the lower casing.

5. the loudspeaker mould group as described in Claims 1-4 any one, which is characterized in that the partition is equipped with intercommunicating pore, The loudspeaker mould group further includes screen cloth, and the screen cloth is fixed with the partition, and covers and close the intercommunicating pore setting.

6. loudspeaker mould group as claimed in claim 5, which is characterized in that the screen cloth and the partition integrated injection molding.

7. loudspeaker mould group as claimed in claim 5, which is characterized in that the partition be equipped with hot melt part, the screen cloth with The partition is fixed by hot melt part hot melt.

8. loudspeaker mould group as claimed in claim 5, which is characterized in that the screen cloth is adhesively fixed with the partition.

9. loudspeaker mould group as claimed in claim 5, which is characterized in that the screen cloth be located at the partition towards described The side of one back cavity.

10. the loudspeaker mould group as described in Claims 1-4 any one, which is characterized in that the partition is equipped with multiple Gas mesh, so that the partition is arranged in mesh-like.