CN208386926U - Loudspeaker mould group - Google Patents

Loudspeaker mould group Download PDF

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Publication number
CN208386926U
CN208386926U CN201820996153.XU CN201820996153U CN208386926U CN 208386926 U CN208386926 U CN 208386926U CN 201820996153 U CN201820996153 U CN 201820996153U CN 208386926 U CN208386926 U CN 208386926U
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CN
China
Prior art keywords
shell
loudspeaker
segment
casing
isolation board
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Active
Application number
CN201820996153.XU
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Chinese (zh)
Inventor
廉波
韩志磊
金圭东
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Goertek Techology Co Ltd
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Goertek Techology Co Ltd
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Priority to CN201820996153.XU priority Critical patent/CN208386926U/en
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Abstract

The utility model discloses a kind of loudspeaker mould group, which includes: shell, and the shell has an inner cavity;Loudspeaker monomer, the loudspeaker monomer are contained in the inner cavity, and the inner cavity is divided into the preceding operatic tunes and the rear operatic tunes by the loudspeaker monomer;And isolation board, the isolation board are set in the rear operatic tunes, the operatic tunes is divided into fill area and non-filling area after the isolation board will be described, and the loudspeaker monomer is set to the isolation board, and is located at the non-filling area.The low frequency performance of the loudspeaker mould group of the utility model is good.

Description

Loudspeaker mould group
Technical field
The utility model relates to electro-acoustic product technical field, in particular to a kind of loudspeaker mould group.
Background technique
Loudspeaker mould group is the important acoustic element of portable electronic device, for completing between electric signal and voice signal Conversion, be a kind of energy conversion device.Existing loudspeaker mould group generally includes shell, and loudspeaker list is contained in shell Entire mould group inner cavity is separated into two cavitys of the preceding operatic tunes and the rear operatic tunes by body, loudspeaker monomer.In order to promote the low frequency of device Power consumption can and be reduced, the volume of the operatic tunes, technical staff would generally form void by filling sound-absorbing particle in the rear operatic tunes after needing to expand The operatic tunes after quasi-.The formation in the filling region of existing loudspeaker mould group is to be molded to form frame-type moulding in intracavity bottom mostly, By sound-absorbing particle filling inside frame-type moulding, then in the top of frame-type moulding setting hot melt screen cloth, screen cloth is heated It is bonded with the surrounding of frame-type moulding, to prevent sound-absorbing particle from revealing.Since moulding has certain thickness, so that filling region Volume be restricted, cannot achieve rear operatic tunes volume maximization.
Utility model content
The main purpose of the utility model is to provide a kind of loudspeaker mould group, it is intended to enhance the low frequency of loudspeaker mould group Energy.
To achieve the above object, the utility model proposes loudspeaker mould group include:
Shell, the shell have an inner cavity;
Loudspeaker monomer, the loudspeaker monomer are contained in the inner cavity, and the loudspeaker monomer divides the inner cavity For the preceding operatic tunes and the rear operatic tunes;And
Isolation board, the isolation board are set in the rear operatic tunes, and the operatic tunes is divided into fill area after the isolation board will be described With non-filling area, the loudspeaker monomer is set to the isolation board, and is located at the non-filling area.
Optionally, the shell includes lower casing and middle shell, and the lower casing is connected with the middle shell and is enclosed in described Chamber, the middle shell are also connected with limit plate in the inner cavity, and the isolation board is at least partly limited in the limit plate.
Optionally, the isolation board includes sequentially connected first segment, second segment and third section, and the loudspeaker monomer is set In the third section, the second segment is abutted with the limit plate.
Optionally, the second segment is step, inclined-plane or cambered surface.
Optionally, the loudspeaker mould group further includes sealing element and breathable barrier, the first segment offer with it is described The filling aperture of fill area connection, the filling aperture are sealed by the sealing element, and the isolation board is equipped with air passing hole, the air passing hole It is blocked by the breathable barrier.
Optionally, filling gap is formed between the lower casing and the third section, the third section is equipped with the air passing hole.
Optionally, the outer side edges of the third section are connected to the end of the under shed of the middle shell, the first segment it is outer Side is connected to the end of the upper opening of the middle shell, and the middle shell further includes demarcation plate, the separation board ends respectively with institute State second segment, lower casing abuts against, the second segment be equipped with the air passing hole.
Optionally, the lower casing is equipped with damping hole, and the damping hole is covered by damping screen.
Optionally, the loudspeaker mould group further includes upper casing, and the upper surface of the shell is equipped in communication with the inner cavity Upper opening, the limit plate by the upper opening be divided into first cross mouth region domain and second cross mouth region domain, the upper shell cover together in Described first crosses mouth region domain, and mouth region domain, the upper casing, the middle shell and the loudspeaker are crossed in the first segment covering described second Monomer is enclosed the preceding operatic tunes jointly.
Optionally, the middle shell and limit plate for crossing mouth region domain positioned at described first are equipped with limiting slot, and the upper casing is limited in The limiting slot.
Loudspeaker mould group is included shell, loudspeaker monomer and isolation board by technical solutions of the utility model, and shell has one Inner cavity is divided into the preceding operatic tunes and the rear operatic tunes by inner cavity, loudspeaker monomer, isolation board is arranged in the rear operatic tunes, by isolation board by rear sound Chamber is divided into fill area and non-filling area, and loudspeaker monomer is contained in inner cavity and is set to isolation board, and is located at non-filling area, is not necessarily to In inner cavity, setting moulding can effectively enhance the low frequency performance of loudspeaker mould group so that the volume of fill area is done greatly as far as possible.
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 positive structure schematic of one embodiment of the utility model loudspeaker mould group;
Fig. 2 is the structure schematic diagram of one embodiment of the utility model loudspeaker mould group;
Fig. 3 is one embodiment of loudspeaker mould group in Fig. 1 along the cut-away view in the face A-A;
Fig. 4 is the configuration schematic diagram of loudspeaker mould group in Fig. 3;
Fig. 5 is the structural schematic diagram of isolation board in Fig. 3;
Fig. 6 is the structure schematic diagram of another embodiment of the utility model loudspeaker mould group;
Fig. 7 is another embodiment of loudspeaker mould group in Fig. 1 along the cut-away view in the face A-A;
Fig. 8 is the configuration schematic diagram of loudspeaker mould group in Fig. 7;
Fig. 9 is the structural schematic diagram of isolation board in Fig. 7.
Drawing reference numeral explanation:
Label Title Label Title
100 Loudspeaker mould group 30 Loudspeaker monomer
10 Shell 50 Isolation board
11 Inner cavity 51 Air passing hole
110 The preceding operatic tunes 52 Breathable barrier
111 The operatic tunes afterwards 53 First segment
111a Fill area 530 Filling aperture
111b Non-filling area 54 Second segment
13 Middle shell 55 Third section
15 Limit plate 60 Sealing element
150 Limiting slot 70 Lower casing
16 Under shed 71 Damping hole
17 First crosses mouth region domain 80 Damping screen
18 Second crosses mouth region domain 90 Upper casing
19 Demarcation plate 91 Acoustic aperture out
20 Conduct piece
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 the directional instruction (such as up, down, left, right, before and after ...) of institute in the utility model embodiment It is only used for explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, such as When the fruit particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In the present invention unless specifically defined or limited otherwise, term " connection ", " fixation " etc. should do broad sense reason Solution, for example, " fixation " may be a fixed connection, may be a detachable connection, or integral;It can be mechanical connection, it can also To be electrical connection;It can be directly connected, the connection inside two elements can also be can be indirectly connected through an intermediary Or the interaction relationship of two elements, unless otherwise restricted clearly.It for the ordinary skill in the art, can be with The concrete meaning of above-mentioned term in the present invention is understood as the case may be.
In addition, the description for being such as related to " first ", " second " in the present invention is used for description purposes only, and cannot manage Solution is its relative importance of indication or suggestion or the quantity for implicitly indicating indicated technical characteristic.Define as a result, " the One ", the feature of " second " can explicitly or implicitly include at least one of the features.In addition, the skill between each embodiment Art scheme can be combined with each other, but must be based on can be realized by those of ordinary skill in the art, when technical solution It will be understood that the combination of this technical solution is not present in conjunction with there is conflicting or cannot achieve when, also not in the utility model It is required that protection scope within.
The utility model proposes a kind of loudspeaker mould groups 100.
Referring to figs. 1 to Fig. 9, in the utility model embodiment, the loudspeaker mould group 100, comprising:
Shell 10, the shell have an inner cavity 11;
Loudspeaker monomer 30, the loudspeaker monomer 30 are contained in the inner cavity 11, and the loudspeaker monomer 30 will be described Inner cavity 11 is divided into the preceding operatic tunes 110 and the rear operatic tunes 111;And
Isolation board 50, the isolation board 50 are set in the rear operatic tunes 111, and the isolation board 50 will the rear operatic tunes 111 It is divided into fill area 111a and non-filling area 111b, the loudspeaker monomer 30 is set to the isolation board 50, and is located at described non- Fill area 111b.
Specifically, shell 10 is integrated injection molding part, there is an inner cavity 11, the substantially square structure of shell 10.Every From plate 50 and 10 integrated injection molding of shell, the rear operatic tunes 111 is divided into fill area 111a and non-filling area 111b by isolation board 50 While also increase the space of fill area 111a to greatest extent, fill area 111a is filled with sound-absorbing particle, and sound-absorbing particle is non- Foam one of sound-absorbing granular materials, such as natural zeolite powder, white carbon black, active carbon or molecular sieve or natural zeolite The mixture of at least two materials in powder, white carbon black, active carbon or molecular sieve, this is not restricted, is increased by sound-absorbing particle The virtual operatic tunes of big fill area 111a improves the acoustical behavior of loudspeaker mould group 100.In order to increase fill area 111a's as far as possible Volume, being preferably isolated plate 50 is steel disc, and thickness is thin and fastness is strong.
Loudspeaker monomer 30 is connect by adhesive means with isolation board 50, it is possible to understand that, loudspeaker monomer 30 is far from it The surface of vibrating diaphragm is connect with isolation board 50.
It should be noted that loudspeaker mould group 100 further includes conduct piece 20, shell 10 is equipped with resigning mouthful, and conduct piece 20 is logical It crosses resigning mouthful to be electrically connected with the realization of loudspeaker monomer 30, external circuit is electrically connected with the voice coil leads of loudspeaker monomer 30.
Loudspeaker mould group 100 is included shell 10, loudspeaker monomer 30 and isolation board 50, shell by technical solutions of the utility model Body 10 has an inner cavity 11, and inner cavity 11 is divided into the preceding operatic tunes 110 and the rear operatic tunes 111, passes through isolation board 50 by loudspeaker monomer 30 The rear operatic tunes 111 is divided into fill area 111a and non-filling area 111b, isolation board 50, loudspeaker monomer are set in the rear operatic tunes 111 30 are contained in inner cavity 11 and are set to isolation board 50, and are located at non-filling area 111b, it is not necessary that moulding is arranged in inner cavity 11, so that filling out The volume for filling area 111a does the low frequency performance that can effectively enhance loudspeaker mould group 100 greatly as far as possible.
Referring to Fig. 4 and Fig. 8, in order to facilitate the installation of, shell 10 includes lower casing 70 and middle shell 13, the lower casing 70 and it is described in Shell 13, which connects, is simultaneously enclosed the inner cavity 11, and the middle shell 13 is also connected with limit plate 15 in the inner cavity 22, it is described every The limit plate 15 is at least partly limited in from plate 50.
It should be understood that middle shell 13 is formed by connecting by end to end four sides, limit plate 15 is set to two and is oppositely arranged Side between, and be contained in inner cavity 11, middle shell 13 can be integrally formed with lower casing 70 to be formed or be detachably connected, this reality It applies in example, preferably middle shell 13 is with lower casing 70 using the detachable connection method of gluing, and wherein limit plate 15 and middle shell 13 are modeling Material, the two using be integrally formed mode form, when isolation board 50 be plastics when, isolation board 50 be limited in limit plate 15 and with Middle shell 13 is formed by being integrally formed mode;When isolation board 50 be steel disc when, isolation board 50 be limited in limit plate 15 and with Middle shell 13 is formed by integrated molding mode.
It is preferred that lower casing 70 is steel disc, middle shell 13 is the tubular structure with both ends open, and 70 detachable cover of lower casing closes In the under shed 16 of middle shell 13, the isolation board 50, the middle shell 13 and the lower casing 70 are enclosed the fill area jointly 111a.Lower casing 70 is connect with middle shell 13 by adhesive sealing, and further, lower casing 70 is equipped with damping hole 71, the damping hole 71 It is covered by damping screen 80.The aperture of damping screen 80 is smaller, less than the partial size of sound-absorbing particle, prevents sound-absorbing particle from draining to outside.Resistance Buddhist nun hole 71 is for the operatic tunes 111 and external environment after being connected to;The rear operatic tunes 111 is in communication with the outside, guarantees the preceding operatic tunes 110 and the rear operatic tunes 111 air pressure balances avoid draught head from influencing the diaphragm oscillations of loudspeaker monomer 30, and damping screen 80 is pasted generally on damping hole 71 and is adjusted The side of section acoustic resistance or damping hole 71, which is set, leads sound track and adjusts acoustic resistance jointly, and this is not restricted.
Further, referring to Fig. 5 and Fig. 9, isolation board 50 includes sequentially connected first segment 53, second segment 54 and third section 55, the loudspeaker monomer 30 is set to the third section 55, and the second segment 54 is abutted with the limit plate 15.
It is set it should be understood that first segment 53, second segment 54 and third section 55 can be integrated molding setting either fission It sets, it is contemplated that the convenience of processing, preferably first segment 53, second segment 54 and third section 55 are integrally formed setting.The present embodiment In, when second segment 54 is plastics, second segment 54 is abutted with limit plate 15 and is formed using the mode of being integrally formed;When second When section 54 is steel disc, second segment 54 is abutted with limit plate 15 and is formed using integrated molding mode.Loudspeaker monomer 30 and third Section 55 gluings connection, in order to enable the overall structure of loudspeaker mould group 100 is more compact, isolation board 50 and shell 10 are completed to assemble Afterwards, the area phase that the bottom surface outer edge of the area that the outer peripheral edge of third section 55 is enclosed and loudspeaker monomer 30 is enclosed Together.
Further, in order to enable the volume of fill area 111a is done greatly as far as possible, the second segment 55 be step, inclined-plane or Cambered surface.
Referring to Fig. 4 and Fig. 8, loudspeaker mould group 100 further includes sealing element 60 and breathable barrier 52, and the first segment 53 is opened Equipped with the filling aperture 530 being connected to the fill area 111a, the filling aperture 530 is sealed by the sealing element 60, the isolation Plate 50 is equipped with air passing hole 51, and the air passing hole 51 is blocked by the breathable barrier 52.
It should be understood that outside is connected to by filling aperture 530 with fill area 111a, sound-absorbing particle is filled out by filling aperture 530 It is charged in fill area 111a, is then sealed filling aperture 530 by sealing element 60, sound-absorbing particle is avoided to leak outside, sealing element 60 is Damping class spring washer is pasted onto first segment 53 by gum or direct gluing, is such as PET (polyethylene terephthalate) piece The whole height of loudspeaker mould group 100 is effectively reduced, adapts to slimming growth requirement, opens up groove in first segment 53 and (do not scheme Show), sealing element 60 is contained in the groove, and the outer surface of sealing element 60 and the outer surface of first segment 53 are at the same level.Wherein, filling The aperture in hole 530 is larger, is passed through with being able to achieve sound-absorbing particle.
In order to realize the effect of low frequency dilatation, isolation board 50 is equipped with air passing hole 51, air passing hole 51 is by breathable barrier 52 Block, sound-absorbing particle is packaged in fill area 111a by breathable barrier 52, and guarantee after the operatic tunes 111 fill area 111a The airflow between non-filling area 111b, breathable barrier 52 can for screen cloth, metal mesh sheet etc. or screen cloth with The superimposion body of steel mesh.When isolation board 50 is using plastic material, breathable barrier 52 blocks air passing hole by hot melting way 51, when isolation board 50 is using steel disc material, breathable barrier 52 blocks air passing hole 51 by adhesive means, does not limit herein System.In one embodiment, filling gap, the third section 55 are formed referring to Fig. 4 and Fig. 5, between lower casing 70 and the third section 55 Equipped with the air passing hole 51.
It should be understood that in the case where the thickness requirement to loudspeaker mould group 100 is not very stringent, by third section 55 setting air passing holes 51, form filling gap between lower casing 70 and third section 55, the outer side edges of first segment 53 are connected in described The end of the upper opening of shell 13, in the present embodiment, there are four air passing hole 51 is set, each air passing hole 51 is corresponding by a breathable barrier 52 block, the airflow of the operatic tunes 111, first segment 53, second segment 54, third section after being realized by four breathable barriers 52 55, shell 10 and lower casing 70 are enclosed the fill area 111a jointly, and the volume of fill area 111a increases, and then enhances loudspeaking The low frequency performance of device mould group 100.
In another embodiment, referring to Fig. 8 and Fig. 9, the outer side edges of third section 55 are connected to the under shed 16 of the middle shell 13 End, the outer side edges of the first segment 53 are connected to the end of the upper opening of the middle shell 13, and the middle shell 13 further includes point Partition 19,19 both ends of demarcation plate are abutted against with the second segment 54, lower casing 70 respectively, and the second segment 54 is equipped with the mistake Stomata 51.
It should be understood that the thickness requirement to loudspeaker mould group 100 than it is relatively thin in the case where, third section 55 and lower casing 70 Collectively as the bottom surface of loudspeaker mould group 100, the inner wall of middle shell 13 is additionally provided with demarcation plate 19, between demarcation plate 19 and limit plate 15 Every setting, lower casing 70 being facilitated to install, while being spaced setting between demarcation plate 19 and limit plate 15, the two has certain interval, when When second segment 54 is limited in limit plate 15, air passing hole 51 is connected to gap, will not hinder fill area 111a and non-filling area 111b Between airflow.70 a side of lower casing is abutted with the lower side of demarcation plate 19, and another side is connected under middle shell 13 and opens The end of mouth 16, the outer surface of lower casing 70 and the outer surface of third section 55 maintain an equal level, and effectively reduce the entirety of loudspeaker mould group 100 Highly.Wherein first segment 53, second segment 54, middle shell 13 and lower casing 70 and the demarcation plate 19 are enclosed fill area 111a, Second segment 54 is equipped with the air passing hole 51, realizes airflow between fill area 111a and non-filling area 111b, enhances loudspeaker The low frequency performance of mould group 100.
Referring to Fig. 4 and Fig. 8, loudspeaker mould group 100 further includes upper casing 90, the upper surface of the shell 10 be equipped with it is described interior The upper opening is divided into the first mouth region domain 17 and second excessively and crosses mouth region domain by the upper opening that chamber 11 is connected to, the limit plate 15 18, the upper casing 90 is covered on described first and crosses mouth region domain 17, and the first segment 53 covers described second and crosses mouth region domain 18, described Upper casing 90, the middle shell 10 and the loudspeaker monomer 30 are enclosed the preceding operatic tunes 110 jointly.
It should be understood that the corresponding loudspeaker monomer 30 of upper casing 90 is arranged, it can guarantee the rigidity of shell 10, reduce thickness, increase Add internal cavity space, increase the volume of loudspeaker monomer 30, improves performance.The outer surface of upper casing 90 and the appearance of first segment 53 Face is at the same level, and the whole height of loudspeaker mould group 100 can be effectively reduced.Upper opening is divided into first and crosses mouth region domain by limit plate 15 17 and second cross mouth region domain 18, and upper casing 90 is covered on first and crosses mouth region domain 17, and upper casing 90 passes through glue with middle shell 13 and limit plate 15 It is connected, mouth region domain 18 is crossed in the covering of first segment 53 second, and first segment 53 is connected by glue with middle shell 13 and limit plate 15, loudspeaking Device monomer 30 is located between upper casing 90 and lower casing steel disc, compact overall structure, and fastness is strong.
Further, in order to facilitate the installation of upper casing 90, the middle shell 13 and limit plate of crossing mouth region domain 17 positioned at described first 15 are equipped with limiting slot 150, and the upper casing 90 is limited in the limiting slot 150.
Further, upper casing 90 is equipped with acoustic aperture 91, and the acoustic aperture 91 out is connected to the preceding operatic tunes 110.
It should be understood that acoustic aperture 91 can be set in upper casing 90 out, it, can also be by 90 He of upper casing for being emitted for sound Shell 10 cooperatively forms, and this is not restricted.
The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model, It is all under the inventive concept of the utility model, equivalent structure made based on the specification and figures of the utility model becomes It changes, 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, the shell have an inner cavity;
Loudspeaker monomer, the loudspeaker monomer is contained in the inner cavity, before the inner cavity is divided by the loudspeaker monomer The operatic tunes and the rear operatic tunes;And
Isolation board, the isolation board be set to it is described after in the operatic tunes, the isolation board will it is described after the operatic tunes be divided into fill area and non- Fill area, the loudspeaker monomer is set to the isolation board, and is located at the non-filling area.
2. loudspeaker mould group as described in claim 1, which is characterized in that the shell includes lower casing and middle shell, the lower casing The inner cavity is connected and is enclosed with the middle shell, and the middle shell is also connected with limit plate, the isolation in the inner cavity Plate is at least partly limited in the limit plate.
3. loudspeaker mould group as claimed in claim 2, which is characterized in that the isolation board include sequentially connected first segment, Second segment and third section, the loudspeaker monomer are set to the third section, and the second segment is abutted with the limit plate.
4. loudspeaker mould group as claimed in claim 3, which is characterized in that the second segment is step, inclined-plane or cambered surface.
5. loudspeaker mould group as claimed in claim 3, which is characterized in that the loudspeaker mould group further includes sealing element and breathes freely Separator, the first segment offer the filling aperture being connected to the fill area, and the filling aperture is sealed by the sealing element, institute Isolation board is stated equipped with air passing hole, the air passing hole is blocked by the breathable barrier.
6. loudspeaker mould group as claimed in claim 5, which is characterized in that form filling between the lower casing and the third section Gap, the third section are equipped with the air passing hole.
7. loudspeaker mould group as claimed in claim 5, which is characterized in that the outer side edges of the third section are connected to the middle shell Under shed end, the outer side edges of the first segment are connected to the end of the upper opening of the middle shell, and the middle shell further includes Demarcation plate, the separation board ends are abutted against with the second segment, lower casing respectively, and the second segment is equipped with the air passing hole.
8. loudspeaker mould group as claimed in claim 5, which is characterized in that the lower casing be equipped with damping hole, the damping hole by Damping screen covering.
9. such as the described in any item loudspeaker mould groups of claim 3 to 8, which is characterized in that on the loudspeaker mould group further includes Shell, the upper surface of the shell are equipped with upper opening in communication with the inner cavity, and the upper opening is divided into the by the limit plate One crosses mouth region domain and second crosses mouth region domain, and the upper shell cover crosses mouth region domain together in described first, first segment covering described the Two cross mouth region domain, and the upper casing, the middle shell and the loudspeaker monomer are enclosed the preceding operatic tunes jointly.
10. loudspeaker mould group as claimed in claim 9, which is characterized in that the middle shell and limit for crossing mouth region domain positioned at described first Position plate is equipped with limiting slot, and the upper casing is limited in the limiting slot.
CN201820996153.XU 2018-06-26 2018-06-26 Loudspeaker mould group Active CN208386926U (en)

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CN201820996153.XU CN208386926U (en) 2018-06-26 2018-06-26 Loudspeaker mould group

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Application Number Priority Date Filing Date Title
CN201820996153.XU CN208386926U (en) 2018-06-26 2018-06-26 Loudspeaker mould group

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111343544A (en) * 2020-03-05 2020-06-26 瑞声科技(新加坡)有限公司 Sound production device
WO2021138953A1 (en) * 2020-01-09 2021-07-15 瑞声声学科技(深圳)有限公司 Speaker enclosure
WO2021168872A1 (en) * 2020-02-25 2021-09-02 瑞声声学科技(深圳)有限公司 Loudspeaker and terminal device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021138953A1 (en) * 2020-01-09 2021-07-15 瑞声声学科技(深圳)有限公司 Speaker enclosure
WO2021168872A1 (en) * 2020-02-25 2021-09-02 瑞声声学科技(深圳)有限公司 Loudspeaker and terminal device
CN111343544A (en) * 2020-03-05 2020-06-26 瑞声科技(新加坡)有限公司 Sound production device
CN111343544B (en) * 2020-03-05 2021-07-09 瑞声科技(新加坡)有限公司 Sound production device

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