CN107613438A - Yin Qiang mechanisms - Google Patents

Yin Qiang mechanisms Download PDF

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Publication number
CN107613438A
CN107613438A CN201710979323.3A CN201710979323A CN107613438A CN 107613438 A CN107613438 A CN 107613438A CN 201710979323 A CN201710979323 A CN 201710979323A CN 107613438 A CN107613438 A CN 107613438A
Authority
CN
China
Prior art keywords
contact
loudspeaker
shell
linkage
pedestal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710979323.3A
Other languages
Chinese (zh)
Inventor
岳雪峰
李�杰
宋克华
朱中炉
华克
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JIANGSU YUCHENG ELECTRONICS CO Ltd
Original Assignee
JIANGSU YUCHENG ELECTRONICS CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JIANGSU YUCHENG ELECTRONICS CO Ltd filed Critical JIANGSU YUCHENG ELECTRONICS CO Ltd
Priority to CN201710979323.3A priority Critical patent/CN107613438A/en
Publication of CN107613438A publication Critical patent/CN107613438A/en
Pending legal-status Critical Current

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Abstract

Yin Qiang mechanisms provided by the invention, are related to sound technique field.The Yin Qiang mechanisms include sound cavity shell, loudspeaker, signal source and contact.Loudspeaker includes loudspeaker body and shell fragment, and shell fragment is electrically connected with loudspeaker body, and loudspeaker body is fixed in sound cavity shell, and signal source is arranged on sound cavity shell, and contact is connected with sound cavity shell, and is electrically connected with signal source, and shell fragment electrically connects with contact.The sound chamber mechanism structure is simple, and loudspeaker and contact are completely embedded, difficult for drop-off, and the Yin Qiang mechanisms assembly process is simple, and production cost is low.

Description

Yin Qiang mechanisms
Technical field
The present invention relates to sound technique field, in particular to a kind of Yin Qiang mechanisms.
Background technology
Yin Qiang mechanisms are audio amplifier, refer to a kind of equipment that audio signal can be transformed to sound.Popular saying just refers to audio amplifier Power amplifier is carried in main frame casing or subwoofer casing, audio signal is amplified after processing and played back out in itself by audio amplifier Sound, its sound is set to become big.
Audio amplifier is the terminal of whole sound system, and its effect is that audio electric energy is converted into corresponding acoustic energy, and its spoke Space is mapped to go.It is the extremely important part of sound system, is responsible for the ear that electric signal is transformed into acoustical signal and supplies people Piece directly listening to for task.
Yin Qiang mechanisms are just progressively applied on the electronic products such as mobile phone, tablet personal computer.
The Shuan Qu loudspeakers mechanism sound chamber applied at present, by double drive loudspeakers, connecting wire, sound chamber lower casing, sound chamber Shell forms.Loudspeaker is connected by being welded to connect line with source electric signal, and assembly process is more, and operation is complicated, and production cost is higher.Will Seek the production cost for improving the said goods and simplify production process.
Therefore, it is that the technology for needing urgently to solve at present is asked to research and develop a kind of Yin Qiang mechanisms that can effectively solve the above problems Topic.
The content of the invention
It is an object of the invention to provide a kind of Yin Qiang mechanisms, and the sound chamber mechanism structure is simple, and loudspeaker and contact Part is completely embedded, difficult for drop-off, and the Yin Qiang mechanisms assembly process is simple, and production cost is low.
The present invention, which solves its technical problem, to be realized using following technical scheme:
A kind of Yin Qiang mechanisms provided by the invention, including sound cavity shell, loudspeaker, signal source and contact.
The loudspeaker includes loudspeaker body and shell fragment, and the shell fragment electrically connects with the loudspeaker body, described to raise Sound device body is fixed in the sound cavity shell, and the signal source is arranged on the sound cavity shell, the contact with it is described Sound cavity shell connects, and is electrically connected with the signal source, and the shell fragment electrically connects with the contact.
Further, the contact has contact edge, and the shell fragment includes the first face being oppositely arranged and the second face, institute First is stated to support with the contact edge facing to the loudspeaker body, first face.
Further, the shell fragment includes pedestal and flexibly supports piece, it is described flexibly support piece and be connected with the pedestal be in Angle, first face be arranged at it is described flexibly support piece, first face is oppositely arranged with the pedestal.
Further, first linkage section and the second linkage section for flexibly supporting piece and including being sequentially connected, described first The one end of linkage section away from second linkage section is connected with the pedestal, and second linkage section is curved, and towards described Pedestal protrudes.
Further, the piece that flexibly supports also includes the 3rd linkage section, and the 3rd linkage section is connected with described second The one end of section away from first linkage section connects, and the 3rd linkage section is curved, and is protruded away from the pedestal.
Further, the pedestal is plate-like, and described one end for flexibly supporting piece in the middle part of the side of the pedestal with connecting Connect.
Further, the contact includes the first contact site and the second contact site being connected with each other, first contact Portion is connected with the inwall of the sound cavity shell, and the contact edge is arranged at second contact site.
Further, the contact also includes connecting portion, and first contact site and second contact site pass through institute State connecting portion connection.
Further, the sound cavity shell includes upper shell and lower house, and the upper shell and the lower house are detachable Connection, the loudspeaker are fixed on the lower house, and the contact is connected with the upper shell.
Another Yin Qiang mechanisms provided by the invention, including sound cavity shell, loudspeaker, signal source and contact.
The loudspeaker includes loudspeaker body and shell fragment, and the loudspeaker body is double drive loudspeakers, the shell fragment with The middle part connection of the loudspeaker body, and electrically connected with the loudspeaker body, the loudspeaker body is fixed on the sound In cavity shell, the signal source is arranged on the sound cavity shell, and the contact is connected with the sound cavity shell, and with it is described Signal source electrically connects, and the shell fragment electrically connects with the contact.
The beneficial effect of the embodiment of the present invention is:
A kind of Yin Qiang mechanisms provided by the invention, its loudspeaker includes the loudspeaker body and shell fragment being connected with each other, because of chamber Contact is fixed with housing, contact electrically connects with signal source, and shell fragment electrically connects with contact, and this structure is in production process In can reduce the process of wire welding, assembly process is few, simple to operate, and production cost is relatively low, also, shell fragment and contact It is completely embedded, the problem of being not in unstable.
Another Yin Qiang mechanisms provided by the invention, its loudspeaker body is double drive loudspeakers, and passes through shell fragment and contact Part electrically connects, and the process that can reduce wire welding in process of production, assembly process is few, simple to operate, and production cost is relatively low, Also, shell fragment and contact are completely embedded, the problem of being not in unstable.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by embodiment it is required use it is attached Figure is briefly described, it will be appreciated that the following drawings illustrate only some embodiment of the present invention, therefore be not construed as pair The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this A little accompanying drawings obtain other related accompanying drawings.
Fig. 1 is a kind of structural representation for the Yin Qiang mechanisms that the specific embodiment of the invention provides.
Fig. 2 is the structural representation of A-A sections in Fig. 1.
Fig. 3 is the structural representation of B-B sections of the present invention.
Fig. 4 is the structural representation of the lower house for the Yin Qiang mechanisms that the specific embodiment of the invention provides.
Fig. 5 is the partial structural diagram for the Yin Qiang mechanisms that the specific embodiment of the invention provides.
Fig. 6 is the structural representation of the shell fragment for the Yin Qiang mechanisms that the specific embodiment of the invention provides.
Icon:100- Yin Qiang mechanisms;110- sound cavity shells;112- upper shells;113- lower houses;1131- outlet sound mouths;120- Loudspeaker;121- loudspeaker bodies;150- shell fragments;The faces of 101- first;The faces of 102- second;152- pedestals;153- flexibly supports piece; The linkage sections of 1531- first;The linkage sections of 1532- second;The linkage sections of 1534- the 3rd;130- contacts;The contact sites of 131- first; The contact sites of 132- second;1321- contact edges;133- connecting portions.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is Part of the embodiment of the present invention, rather than whole embodiments.The present invention implementation being generally described and illustrated herein in the accompanying drawings The component of example can be configured to arrange and design with a variety of.
Therefore, below the detailed description of the embodiments of the invention to providing in the accompanying drawings be not intended to limit it is claimed The scope of the present invention, but be merely representative of the present invention selected embodiment.It is common based on the embodiment in the present invention, this area The every other embodiment that technical staff is obtained under the premise of creative work is not made, belong to the model that the present invention protects Enclose.
It should be noted that:Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi It is defined, then it further need not be defined and explained in subsequent accompanying drawing in individual accompanying drawing.
In the description of the invention, it is necessary to explanation, term " on " etc. instruction orientation or position relationship be based on attached Orientation or position relationship shown in figure, or the invention product using when the orientation usually put or position relationship, be only for It is easy to the description present invention and simplifies description, rather than instruction or implies that signified device or element there must be specific side Position, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " etc. are only used for distinguishing description, and it is not intended that indicating or implying relatively important Property.
In the description of the invention, it is also necessary to which explanation, unless having more specific regulation in addition and limiting, term " is set Put ", " connection " more broadly understanding should be done, for example, " connection " can be fixedly connected or be detachably connected, or one Connect body;Can be mechanical connection or electrical connection;Can be joined directly together, can also be indirect by intermediary It is connected, can is the connection of two element internals.For the ordinary skill in the art, on being understood with concrete condition State the concrete meaning of term in the present invention.
Below in conjunction with the accompanying drawings, an embodiment of the invention is elaborated, it is following in the case where not conflicting Feature in embodiment can be mutually combined.
Fig. 1 is a kind of structural representation for the Yin Qiang mechanisms 100 that the present embodiment provides.Fig. 2 is the knot of A-A sections in Fig. 1 Structure schematic diagram.Fig. 3 is the structural representation of B-B sections of the present invention.Incorporated by reference to reference picture 1- Fig. 3, one kind is present embodiments provided Yin Qiang mechanisms 100, it includes sound cavity shell 110, loudspeaker 120, signal source (figure is not marked) and contact 130.
Loudspeaker 120 includes loudspeaker body 121 and shell fragment 150, and shell fragment 150 is electrically connected with loudspeaker body 121, raised one's voice Device body 121 is fixed in sound cavity shell 110, and signal source is arranged on sound cavity shell 110, contact 130 and sound cavity shell 110 Connection, and electrically connected with signal source, shell fragment 150 electrically connects with contact 130.
It should be understood that between its loudspeaker body 121 of Yin Qiang mechanisms 100 and signal source that the present embodiment provides, pass through Electrical connection is realized in the contact of shell fragment 150 and contact 130.Simple in construction, electrical connection is stable and effect is good.
Fig. 4 is the structural representation of the lower house 113 for the Yin Qiang mechanisms 100 that the present embodiment provides.Incorporated by reference to the He of reference picture 2 Fig. 4, it is preferable that in the present embodiment, sound cavity shell 110 includes upper shell 112 and lower house 113, upper shell 112 and lower house 113 are detachably connected.
In the present embodiment, 113 rectangular shape of lower house, lower house 113 is used to fix loudspeaker 120.In lower house 113 Portion is further opened with outlet sound mouth 1131, and the outlet sound mouth 1131 is spoken for loudspeaker 120.
Preferably, 1131 rectangular shape of outlet sound mouth.
In the present embodiment, also rectangular shape, upper shell 112 are used for fixed signal source and contact 130 to upper shell 112.
In the present embodiment, upper shell 112 covers lower house 113, and lower house 113 and upper shell 112 are fixed by screw.
It should be appreciated that the easy disassembly of sound cavity shell 110 of this structure, to be carried out to the parts in sound cavity shell 110 Change or repair.In other preferred embodiments, the annexation of upper shell 112 and lower house 113 can have different changes, example Realization is coordinated to be detachably connected as fastened, or by screw thread.
Continuing referring to Fig. 3, in the present embodiment, loudspeaker 120 includes loudspeaker body 121 and shell fragment 150, wherein, raise Sound device body 121 is double drive loudspeakers, and shell fragment 150 is connected with the middle part of loudspeaker body 121.
In the present embodiment, loudspeaker body 121 and lower house 113 are screwed, also, loudspeaker body 121 is set Put at outlet sound mouth 1131.
It should be appreciated that in other preferred embodiments, the connected mode of loudspeaker body 121 and lower house 113 can have Difference change, such as bonding etc..
Fig. 5 is the partial structural diagram for the Yin Qiang mechanisms 100 that the present embodiment provides.It refer to Fig. 5, in the present embodiment, The quantity of contact 130 is two, and two contacts 130 are arranged at intervals, and are respectively used to contact with shell fragment 150.
In the present embodiment, contact 130 has contact edge 1321, and contact edge 1321 is used for and shell fragment 150 contacts.It can manage Solution, this contact relation is simple, and puts forth effort stabilization.
In the present embodiment, contact 130 includes the first contact site 131 and the second contact site 132 being connected with each other, and first connects Contact portion 131 is connected with the inwall of sound cavity shell 110, and contact edge 1321 is arranged at the second contact site 132.
In order to facilitate connection, in the present embodiment, contact 130 also includes connecting portion 133, the first contact site 131 and second Contact site 132 is connected by connecting portion 133.
Preferably, the first contact site 131, the second contact site 132 and connecting portion 133 are plate-like, the He of the first contact site 131 Second contact site 132 be arranged in parallel, 132 equal vertical connection of the contact site 131 of connecting portion 133 and first and the second contact site.
It is understood that the contact 130 of this structure is convenient and upper shell 112 connects, also, in the present embodiment, First contact site 131 is be bonded with upper shell 112, and contact area is big, Stability Analysis of Structures.Connecting portion 133 has progradation so that the Two contact sites 132 are easy to contact with shell fragment 150, and are formd between the second contact site 132 and upper shell 112 and be available for shell fragment The space of 150 insertions so that shell fragment 150 and the attended operation of contact 130 are convenient, and contact is firm.
It should be appreciated that in other preferred embodiments, the structure of contact 130 can have different changes, for example, first connects Contact portion 131, the contact site 132 of connecting portion 133 and second are sequentially connected in zigzag etc..
Fig. 6 is the structural representation of the shell fragment 150 for the Yin Qiang mechanisms 100 that the present embodiment provides.Incorporated by reference to reference picture 5 and figure 6, in the present embodiment, shell fragment 150 includes the first face 101 and the second face 102 being oppositely arranged, and the first face 101 is towards loudspeaker sheet Body 121, the second face 102 is backwards to loudspeaker body 121, and the first face 101 is used for and contact 130 contacts.
Specifically, shell fragment 150 includes pedestal 152 and flexibly supports piece 153.Flexibly support piece 153 and be connected with pedestal 152 and be in Angle, the first face 101, which is arranged at, flexibly supports piece 153, and the first face 101 is oppositely arranged with pedestal 152.
That is, in the present embodiment, contact 130, which is arranged at, to be flexibly supported between the case base 152 of piece 153.
It is understood that it is in angle to flexibly support piece 153 and be connected with pedestal 152, flexibly supporting piece 153 has certain bullet Property, flexibly supports piece 153 in use, can pull, makes it away from pedestal 152, and is contacted with contact 130, when flexibly supporting After piece 153 contacts with contact 130, release flexibly supports piece 153, in the presence of restoring force, flexibly supports piece 153 with contacting Part 130 contacts closely.
Preferably, pedestal 152 is plate-like, and the one end for flexibly supporting piece 153 is connected with the middle part of the side of pedestal 152.
It is understood that the pedestal 152 of this structure is used for and loudspeaker body 121 is fixed, structure is highly stable, energy Bear certain elastic acting force.
Preferably, pedestal 152 and loudspeaker body 121 are bonded.
In the present embodiment, the first linkage section 1531, the and of the second linkage section 1532 that piece 153 includes being sequentially connected are flexibly supported 3rd linkage section 1534, the one end of the first linkage section 1531 away from the second linkage section 1532 are connected with pedestal 152, the 3rd linkage section 1534 are connected with the one end of the second linkage section 1532 away from the first linkage section 1531.
Preferably, the length of the first linkage section 1531 is shorter, the approximating square shape of the first linkage section 1531, the first linkage section 1531 with the vertical connection of pedestal 152, it is in angle that the second linkage section 1532 is connected with the first linkage section 1531.Therefore the second linkage section Angle is formed between 1532 and pedestal 152.
It is understood that the first linkage section 1531 has cushioning effect, if the second linkage section 1532 and pedestal 152 are straight Connect in succession in angle, structure is stiff, easily snaps off.
In the present embodiment, the second linkage section 1532 is curved, and is protruded towards pedestal 152.It is understood that this implementation In example, the second linkage section 1532 is used for and contact 130 contacts, and the second linkage section 1532 protrudes towards pedestal 152, therefore can be with Extruding relation is formed between contact 130 so that contact is closely.
In the present embodiment, the 3rd linkage section 1534 is also curved, and is protruded away from pedestal 152.It is understood that the 3rd Linkage section 1534 can be used for further being connected with the second connecting portion 133 of contact 130 in hook-shaped, with strengthen shell fragment 150 with The being stably connected with property of contact 130.
Preferably, in the present embodiment, the quantity of shell fragment 150 is two, and two shell fragments 150 are oppositely arranged, two bullets Piece 150 is respectively used to contact with two contacts 130.
It is understood that two flexibly support piece 153 and are oppositely arranged, and contacted respectively with two contacts 130, can be with Form relative clamping active force so that the electrical connection of loudspeaker body 121 and contact 130 is closely.
To sum up, a kind of Yin Qiang mechanisms 100 that the present embodiment provides, its loudspeaker 120 include the loudspeaker sheet being connected with each other Body 121 and shell fragment 150, because being fixed with contact 130 on cavity shell, contact 130 electrically connects with signal source, and shell fragment 150 is with connecing Contact element 130 electrically connects, and this structure can reduce the process of wire welding in process of production, and assembly process is few, simple to operate, Production cost is relatively low, also, shell fragment 150 and contact 130 are completely embedded, the problem of being not in unstable.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies Change, equivalent substitution, improvement etc., should be included in the scope of the protection.

Claims (10)

1. a kind of Yin Qiang mechanisms, it is characterised in that including sound cavity shell, loudspeaker, signal source and contact;
The loudspeaker includes loudspeaker body and shell fragment, and the shell fragment electrically connects with the loudspeaker body, the loudspeaker Body is fixed in the sound cavity shell, and the signal source is arranged on the sound cavity shell, the contact and the sound chamber Housing connects, and is electrically connected with the signal source, and the shell fragment electrically connects with the contact.
2. Yin Qiang mechanisms as claimed in claim 1, it is characterised in that the contact has contact edge, and the shell fragment includes The first face for being oppositely arranged and the second face, described first facing to the loudspeaker body, first face and the contact edge Support.
3. Yin Qiang mechanisms as claimed in claim 2, it is characterised in that the shell fragment includes pedestal and flexibly supports piece, described It is in angle to flexibly support piece and be connected with the pedestal, and first face, which is arranged at, described flexibly supports piece, first face and institute Pedestal is stated to be oppositely arranged.
4. Yin Qiang mechanisms as claimed in claim 3, it is characterised in that first company for flexibly supporting piece and including being sequentially connected Section and the second linkage section are connect, the one end of first linkage section away from second linkage section is connected with the pedestal, and described Two linkage sections are curved, and are protruded towards the pedestal.
5. Yin Qiang mechanisms as claimed in claim 4, it is characterised in that the piece that flexibly supports also includes the 3rd linkage section, institute State the 3rd linkage section to be connected with the one end of second linkage section away from first linkage section, the 3rd linkage section is in arc Shape, and protruded away from the pedestal.
6. Yin Qiang mechanisms as claimed in claim 3, it is characterised in that the pedestal is plate-like, described to flexibly support the one of piece End is connected with the middle part of the side of the pedestal.
7. Yin Qiang mechanisms as claimed in claim 2, it is characterised in that the contact includes the first contact site being connected with each other With the second contact site, first contact site is connected with the inwall of the sound cavity shell, and the contact edge is arranged at described second Contact site.
8. Yin Qiang mechanisms as claimed in claim 7, it is characterised in that the contact also includes connecting portion, and described first connects Contact portion is connected with second contact site by the connecting portion.
9. Yin Qiang mechanisms as claimed in claim 1, it is characterised in that the sound cavity shell includes upper shell and lower house, institute State upper shell and the lower house be detachably connected, the loudspeaker is fixed on the lower house, the contact with it is described Upper shell connects.
10. a kind of Yin Qiang mechanisms, it is characterised in that including sound cavity shell, loudspeaker, signal source and contact;
The loudspeaker includes loudspeaker body and shell fragment, and the loudspeaker body is double drive loudspeakers, the shell fragment with it is described The middle part connection of loudspeaker body, and electrically connected with the loudspeaker body, the loudspeaker body is fixed on the sound chamber shell In vivo, the signal source is arranged on the sound cavity shell, and the contact is connected with the sound cavity shell, and with the signal Source electrically connects, and the shell fragment electrically connects with the contact.
CN201710979323.3A 2017-10-19 2017-10-19 Yin Qiang mechanisms Pending CN107613438A (en)

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Application Number Priority Date Filing Date Title
CN201710979323.3A CN107613438A (en) 2017-10-19 2017-10-19 Yin Qiang mechanisms

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020140167A1 (en) * 2018-12-30 2020-07-09 瑞声科技(南京)有限公司 Vehicle-mounted sound box and automobile

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CN202374407U (en) * 2011-11-24 2012-08-08 比亚迪股份有限公司 Resonant chamber device and electronic product utilizing same
CN203840519U (en) * 2014-05-13 2014-09-17 歌尔声学股份有限公司 Loudspeaker module set
CN204498303U (en) * 2015-03-31 2015-07-22 歌尔声学股份有限公司 A kind of loud speaker module
CN204681584U (en) * 2015-05-29 2015-09-30 歌尔声学股份有限公司 A kind of loud speaker module
CN205596335U (en) * 2016-03-28 2016-09-21 歌尔声学股份有限公司 Loudspeaker module group
WO2017045261A1 (en) * 2015-09-15 2017-03-23 歌尔声学股份有限公司 Receiver
CN206413176U (en) * 2016-10-14 2017-08-15 中山强乐电子有限公司 Dual drive racetrack loudspeaker
CN206422904U (en) * 2017-02-17 2017-08-18 东莞顺合丰电业有限公司 Dual-drive speaker structure

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201616902U (en) * 2009-11-20 2010-10-27 天津中环真美声学技术有限公司 Dual-drive paper holder flat panel speaker
CN202374407U (en) * 2011-11-24 2012-08-08 比亚迪股份有限公司 Resonant chamber device and electronic product utilizing same
CN203840519U (en) * 2014-05-13 2014-09-17 歌尔声学股份有限公司 Loudspeaker module set
CN204498303U (en) * 2015-03-31 2015-07-22 歌尔声学股份有限公司 A kind of loud speaker module
CN204681584U (en) * 2015-05-29 2015-09-30 歌尔声学股份有限公司 A kind of loud speaker module
WO2017045261A1 (en) * 2015-09-15 2017-03-23 歌尔声学股份有限公司 Receiver
CN205596335U (en) * 2016-03-28 2016-09-21 歌尔声学股份有限公司 Loudspeaker module group
CN206413176U (en) * 2016-10-14 2017-08-15 中山强乐电子有限公司 Dual drive racetrack loudspeaker
CN206422904U (en) * 2017-02-17 2017-08-18 东莞顺合丰电业有限公司 Dual-drive speaker structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020140167A1 (en) * 2018-12-30 2020-07-09 瑞声科技(南京)有限公司 Vehicle-mounted sound box and automobile

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Application publication date: 20180119