CN109788405A - A kind of sounding device and assemble method - Google Patents
A kind of sounding device and assemble method Download PDFInfo
- Publication number
- CN109788405A CN109788405A CN201811565034.XA CN201811565034A CN109788405A CN 109788405 A CN109788405 A CN 109788405A CN 201811565034 A CN201811565034 A CN 201811565034A CN 109788405 A CN109788405 A CN 109788405A
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- Prior art keywords
- magnet
- magnetic yoke
- conductive magnetic
- side magnet
- sounding device
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/40—Mixing liquids with liquids; Emulsifying
- B01F23/47—Mixing liquids with liquids; Emulsifying involving high-viscosity liquids, e.g. asphalt
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/70—Pre-treatment of the materials to be mixed
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention discloses a kind of sounding device and assemble method, the generating device includes vibration component and magnetic circuit component；The vibration component includes vibrating diaphragm and voice coil, the vibrating diaphragm edge fixed setting, the voice coil is connected on a side surface of the vibrating diaphragm, the magnetic circuit component includes conductive magnetic yoke and group of magnets, the group of magnets includes the centring magnet for being bonded in conductive magnetic yoke center and the side magnet that conductive magnetic yoke edge is arranged in, the side magnet is fixed in conductive magnetic yoke by way of injection molding, and magnetic gap is formed between the side magnet and centring magnet, and the voice coil is suspended from magnetic gap.The present invention increases the fixed performance of side magnet, keeps its not easy to fall off by the way that magnet injection molding in side is fixed on this improvement in conductive magnetic yoke.
Description
Technical field
The present invention relates to electroacoustic switch technology fields, more particularly, to a kind of sounding device and assemble method.
Background technique
In recent years, consumer electronics product is rapidly developed, and the electronic equipments such as smart phone, VR equipment are consumed
The approval of person, is widely used.Those skilled in the art are also corresponding to relevant auxiliary products such as earphone etc. to carry out
It improves, to meet the performance requirement of electronic product, meets consumer to the needs of properties of product.
Sounding device is electroacoustic transduction component important in consumer electronics product, as loudspeaker, earpiece, earphone etc.
It is widely used.With the performance improvement of electronic product, the improvement of the acoustical behavior in relation to sounding device is also inevitable
Trend.
There is magnetic circuit system, magnetic circuit system includes the components such as magnet, magnetic conductive board, is assembled in one in existing sounding device
It rises and constitutes magnetic circuit system.But the connection reliability in existing magnetic circuit system between each component is relatively low, is easy to appear assembly
Phenomena such as insecure, superstructure loosening.When sounding device is by colliding, it could even be possible to there is the phenomenon that magnetic circuit system is scattered.
Thus, it is necessary to structure to existing sounding device or in which the structure of component improve, to guarantee loudspeaking
The further promotion of device performance.
Summary of the invention
It is an object of the present invention to provide a kind of new solutions of sounding device.
According to the first aspect of the invention, a kind of sounding device, including vibration component and magnetic circuit component are provided；The vibration
Dynamic component includes vibrating diaphragm and voice coil, and the vibrating diaphragm edge is fixedly installed, and the voice coil is connected on a side surface of the vibrating diaphragm；
The magnetic circuit component includes conductive magnetic yoke and group of magnets, the group of magnets include be bonded in conductive magnetic yoke center centring magnet and
The side magnet at conductive magnetic yoke edge is set；The side magnet injection molding is fixed in the conductive magnetic yoke, and the centring magnet fixation is set
It sets in the conductive magnetic yoke；The side magnet is looped around around the centring magnet, shape between the side magnet and centring magnet
At magnetic gap, the voice coil is suspended from magnetic gap.
Optionally, the edge of the conductive magnetic yoke is provided with interconnecting piece, and the interconnecting piece is embedded in the side magnet.
Optionally, the interconnecting piece and conductive magnetic yoke joint are smooth chamfering.
Optionally, the interconnecting piece and conductive magnetic yoke joint are smooth chamfering.
Optionally, the interconnecting piece bends to the direction close to the centring magnet and extends.
Optionally, length of the interconnecting piece on conductive magnetic yoke edge extending direction is less than the length of the side magnet.
Optionally, the length of the interconnecting piece is the 1/4~1/3 of side magnet length.
Optionally, the side magnet is plastic magnet.
Optionally, the plastic magnet is made using particulate magnetic-particle and thermoplastic organic polymer through being kneaded.
Optionally, the particulate magnetic-particle is ferrite and rare earth metal.
According to another aspect of the present invention, a kind of assemble method of sounding device is provided characterized by comprising
Conductive magnetic yoke and injection mold are provided, there is the groove for being used to form side magnet in the injection mold；
Conductive magnetic yoke is placed in injection mold, injection molding is fixedly connected on the side magnetic of the conductive magnetic yoke in injection mold
Iron, the side magnet are located at the edge of the conductive magnetic yoke；
Centring magnet is set in the center of the conductive magnetic yoke, is formed between magnetic between the side magnet and centring magnet
Gap；
Vibration component is provided, the vibration component includes vibrating diaphragm and voice coil, the edge fixed setting of the vibrating diaphragm, the sound
Circle is connected on a side surface of the vibrating diaphragm, and the voice coil is suspended from the magnetic gap.
The invention has the advantages that increasing side magnetic by the way that magnet injection molding in side is fixed on this improvement in conductive magnetic yoke
The fixed performance of iron keeps its not easy to fall off.The technical assignment to be realized of the present invention or the technical problem to be solved is that
It is that those skilled in the art never expect or it is not expected that, therefore the present invention is a kind of new technical solution.
By referring to the drawings to the detailed description of exemplary embodiment of the present invention, other feature of the invention and its
Advantage will become apparent.
Detailed description of the invention
It is combined in the description and the attached drawing for constituting part of specification shows the embodiment of the present invention, and even
With its explanation together principle for explaining the present invention.
Fig. 1 is the structural schematic diagram of magnetic circuit component in the embodiment of sounding device of the present invention.
Fig. 2 is the structural schematic diagram in the embodiment of sounding device of the present invention after magnetic circuit component injection molding molding.
Fig. 3 is the enlarged drawing of part A in Fig. 2 of the embodiment of sounding device of the present invention.
Fig. 4 is the schematic diagram of the embodiment of sounding device assemble method of the present invention.
Specific embodiment
Carry out the various exemplary embodiments of detailed description of the present invention now with reference to attached drawing.It should also be noted that unless in addition having
Body explanation, the unlimited system of component and the positioned opposite of step, numerical expression and the numerical value otherwise illustrated in these embodiments is originally
The range of invention.
Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to the present invention
And its application or any restrictions used.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus 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.
With reference to Fig. 1, Fig. 2, the embodiment of the invention provides a kind of sounding devices, including vibration component and magnetic circuit component；Institute
Stating vibration component includes vibrating diaphragm and voice coil, and the vibrating diaphragm edge is fixedly installed, and the voice coil is connected to the side table of the vibrating diaphragm
On face；The magnetic circuit component includes conductive magnetic yoke 1 and group of magnets, and the group of magnets includes being bonded in 1 center of conductive magnetic yoke
Heart magnet and the side magnet 2 that 1 edge of conductive magnetic yoke is set；The side magnet 2 injection molding is fixed in the conductive magnetic yoke 1, it is described in
Heart magnet is fixed in the conductive magnetic yoke 1；The side magnet 2 is looped around around the centring magnet, the side magnet 2 with
Magnetic gap is formed between centring magnet, the voice coil is suspended from magnetic gap.
In the scheme of the present embodiment, in the magnetic circuit component, the connection relationship between conductive magnetic yoke 1 and side magnet 2 is not adopted
With the mode of glue sticking, but the injection molding of side magnet 2 is directly fixed in conductive magnetic yoke 1 by the means that injection molding is utilized.Side magnet 2 with
The contact area of conductive magnetic yoke 1 is smaller, is easy to fall off using glue sticking.And use injection molding means, can be conductive magnetic yoke directly with
Side magnet closely connects.For example, magnet injection molding in side is formed on the surface of the conductive magnetic yoke, or injection molding is coated on described lead
The edge of magnetic yoke.Enable in conductive magnetic yoke built-in edges magnet by injection molding, the connection reliability of the two is obviously improved.
In a kind of alternative embodiment of the invention, the edge of the conductive magnetic yoke 1 is provided with interconnecting piece 3, the interconnecting piece 3
It is stretched out from the edge of the conductive magnetic yoke 1, the interconnecting piece 3 is embedded in the side magnet 2.
When carrying out injection molding, the injection molding of side magnet 2 is formed in around interconnecting piece 3, at least by a part of interconnecting piece 3
Encapsulated by structures is in side magnet 2.A part that interconnecting piece 3 is stretched out from side magnet 2 is connect with conductive magnetic yoke 1.Pass through this structure
Design, can significantly improve the connection reliability between side magnet and conductive magnetic yoke.
Preferably, the interconnecting piece and the conductive magnetic yoke can be an integrally formed global facility, in this way, interconnecting piece
Connection reliability between conductive magnetic yoke is higher.Or optionally, the interconnecting piece can be two portions separated with conductive magnetic yoke
Part is achieved a fixed connection by processing technologys such as welding.
Optionally, as shown in figure 3, the interconnecting piece 3 and 1 joint of conductive magnetic yoke are smooth chamfering.Smooth chamfering can
To guarantee that not generating stress in the junction of interconnecting piece 3 and conductive magnetic yoke 1 concentrates, it is not easy to damage, in addition can make entire magnetic circuit
Component is integrally smooth, convenient for the assembly inside sounding device.
Another embodiment of the present invention, with reference to Fig. 3, the interconnecting piece 3 to close to the centring magnet direction
Bending extends.Such bending structure makes interconnecting piece 3 in injection molding, can be the state for protruding into magnet, the part protruded into compared with
Deep, the structure of bending can increase fixed firmness.It is in integrally formed embodiment in interconnecting piece and conductive magnetic yoke, it can
Directly to cut the edge of conductive magnetic yoke to form interconnecting piece, bending process is carried out to interconnecting piece later.The interconnecting piece can
To form bending shape as shown in Figure 3.
In another embodiment of the present invention, length of the interconnecting piece 3 on 1 edge extending direction of conductive magnetic yoke is small
In the length of the side magnet 2.
In the present embodiment, the shape of conductive magnetic yoke 1 is rectangle or class rectangle, and interconnecting piece 3 is just separately positioned on institute
On four sides for stating the conductive magnetic yoke 1 of rectangle, the edge for the conductive magnetic yoke 1 of the interconnecting piece 3 being located in the longitudinal direction with it
Extending direction is consistent, and side magnet 2 is also to be arranged in a long strip shape at 1 edge of conductive magnetic yoke, therefore, the length direction of interconnecting piece 3, with
Side magnet 2 is consistent.
The length of interconnecting piece 3 is smaller than 2 length of side magnet to will not influence its stationarity.Due to interconnecting piece 3 both ends not
Side magnet 2 can be stretched out, and side magnet 2 and the contact area of interconnecting piece 3 is made to become larger, makes front, side of the side magnet 2 from interconnecting piece
And the multiple directions such as top surface form the form of package to interconnecting piece 3, to improve the reliability being fixedly connected.Interconnecting piece 3
Want to play fixed effect, 3 moderate length of interconnecting piece can also save material and mitigate the weight of whole device.
Wherein, in a kind of preferred embodiment, the length of the interconnecting piece 3 is the 1/4~1/3 of 2 length of side magnet.Even
This proportional region of socket part 3 and side magnet 2, in the lightweight of fixed reliability and whole device and difficulty of processing all
The effect that can be optimal.
In a specific embodiment of the invention, the centring magnet is fixed on the middle part of conductive magnetic yoke 1 by way of bonding.
Since the position of centring magnet is the centre of conductive magnetic yoke 1, and centring magnet area is larger, so by the way of bonding, such as
It easily fixes.So centring magnet can continue to be attached using the means of bonding in the prior art.
Such two kinds of means are used cooperatively, and can both guarantee fixing intensity height, while can also reduce difficulty of processing.
In a specific embodiment of the invention, the side magnet 2 be plastic magnet, plastic magnet compared with traditional magnet,
With light weight, process the advantage being more easier, in this application, by the way of injection molding in, using plastic magnet plus
Work is easy.
Optionally, the plastic magnet is made using particulate magnetic-particle and thermoplastic organic polymer through being kneaded.In reality
In the process of border, particulate magnetic-particle and thermoplastic organic polymer first can be mixed to form the note with certain fluidity
Plastics.Later, injection molding material is filled in injection mold.Conductive magnetic yoke can be set in advance in injection mold.Pass through injection mold
Structure design so that injection molding material is filled in conductive magnetic yoke, ultimately form the side magnet being fixedly connected in conductive magnetic yoke.
Optionally, the particulate magnetic-particle is ferrite and rare earth metal.
With reference to Fig. 4, the embodiment of the invention provides a kind of assemble methods of sounding device, comprising:
Conductive magnetic yoke 1 and injection mold are provided, there is the groove for being used to form side magnet 2 in the injection mold；
Conductive magnetic yoke 1 is placed in injection mold, injection molding is fixedly connected on the side of the conductive magnetic yoke 1 in injection mold
Magnet 2, the side magnet 2 are located at the edge of the conductive magnetic yoke 1；
Centring magnet is set in the center of the conductive magnetic yoke 1, is formed between magnetic between the side magnet 2 and centring magnet
Gap；
Vibration component is provided, the vibration component includes vibrating diaphragm and voice coil, the edge fixed setting of the vibrating diaphragm, the sound
Circle is connected on a side surface of the vibrating diaphragm, and the voice coil is suspended from the magnetic gap.
Preferably, in the embodiment that conductive magnetic yoke 1 has interconnecting piece 3, conductive magnetic yoke 1 is placed on to the preceding mould of injection mold
In 4, interconnecting piece 3 is located exactly in groove of the rear mold 5 for forming side magnet.After injection molding material is filled with injection mold, injection molding material
It can be filled in groove, side magnet is wrapped in interior.After injection molding material is cooling, it is formed by the week that side magnet 2 is wrapped in interconnecting piece 3
It encloses.Side magnet and the connection reliability of conductive magnetic yoke are significantly improved.
When the fixation of underway heart magnet, because the effective area that centring magnet can be used for applying glue sticking is big,
When being fixed, bonding agent can be selected to be adhesively fixed.
Although some specific embodiments of the invention are described in detail by example, the skill of this field
Art personnel it should be understood that example above merely to being illustrated, the range being not intended to be limiting of the invention.The skill of this field
Art personnel are it should be understood that can without departing from the scope and spirit of the present invention modify to above embodiments.This hair
Bright range is defined by the following claims.
Claims (10)
1. a kind of sounding device, which is characterized in that including vibration component and magnetic circuit component；
The vibration component includes vibrating diaphragm and voice coil, and the vibrating diaphragm edge is fixedly installed, and the voice coil is connected to the vibrating diaphragm
On one side surface；
The magnetic circuit component includes conductive magnetic yoke and group of magnets, and the group of magnets includes the center magnetic for being bonded in conductive magnetic yoke center
Iron and the side magnet that conductive magnetic yoke edge is set；
The side magnet injection molding is fixed in the conductive magnetic yoke, and the centring magnet is fixed in the conductive magnetic yoke；
The side magnet is looped around around the centring magnet, forms magnetic gap between the side magnet and centring magnet, described
Voice coil is suspended from magnetic gap.
2. sounding device according to claim 1, which is characterized in that the edge of the conductive magnetic yoke is provided with interconnecting piece,
The interconnecting piece is embedded in the side magnet.
3. sounding device according to claim 1, which is characterized in that the interconnecting piece is smooth with conductive magnetic yoke joint
Chamfering.
4. sounding device according to claim 3, which is characterized in that the interconnecting piece to close to the centring magnet side
Extend to bending.
5. sounding device according to claim 4, which is characterized in that the interconnecting piece is along conductive magnetic yoke edge extending direction
Length be less than the side magnet length.
6. sounding device according to claim 5, which is characterized in that the length of the interconnecting piece is the 1/ of side magnet length
4~1/3.
7. sounding device described in any one of -6 according to claim 1, which is characterized in that the side magnet is plastic magnetic
Iron.
8. sounding device according to claim 7, which is characterized in that the plastic magnet is using particulate magnetic-particle and heat
Plasticity organic polymer is made through being kneaded.
9. sounding device according to claim 8, which is characterized in that the particulate magnetic-particle is ferrite and terres rares
Metal.
10. a kind of assemble method of sounding device characterized by comprising
Conductive magnetic yoke and injection mold are provided, there is the groove for being used to form side magnet in the injection mold；
Conductive magnetic yoke is placed in injection mold, injection molding is fixedly connected on the side magnet of the conductive magnetic yoke in injection mold,
The side magnet is located at the edge of the conductive magnetic yoke；
Centring magnet is set in the center of the conductive magnetic yoke, forms magnetic gap between the side magnet and centring magnet；
Vibration component is provided, the vibration component includes vibrating diaphragm and voice coil, the edge fixed setting of the vibrating diaphragm, the voice coil company
It connects on a side surface of the vibrating diaphragm, the voice coil is suspended from the magnetic gap.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811565034.XA CN109788405B (en) | 2018-12-20 | 2018-12-20 | Sound production device and assembly method |
| PCT/CN2019/109001 WO2020125126A1 (en) | 2018-12-20 | 2019-09-29 | Glue mixing method for high-viscosity double-component glue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811565034.XA CN109788405B (en) | 2018-12-20 | 2018-12-20 | Sound production device and assembly method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109788405A true CN109788405A (en) | 2019-05-21 |
| CN109788405B CN109788405B (en) | 2020-08-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811565034.XA Active CN109788405B (en) | 2018-12-20 | 2018-12-20 | Sound production device and assembly method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109788405B (en) |
| WO (1) | WO2020125126A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110149575A (en) * | 2019-06-03 | 2019-08-20 | 歌尔股份有限公司 | A kind of sounding device |
| CN112261553A (en) * | 2020-10-16 | 2021-01-22 | 歌尔股份有限公司 | Magnetic circuit assembly manufacturing method, magnetic circuit assembly and loudspeaker |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116285817B (en) * | 2023-03-29 | 2023-09-26 | 苏州中科科仪技术发展有限公司 | Double-component epoxy glue mixing method |
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| US20020071590A1 (en) * | 2000-12-09 | 2002-06-13 | Samsung Electro-Mechanics Co., Ltd. | Magnetic circuit of micro speaker |
| JP2015053805A (en) * | 2013-09-06 | 2015-03-19 | 株式会社東海理化電機製作所 | Magnetic circuit |
| CN204761701U (en) * | 2015-07-01 | 2015-11-11 | 歌尔声学股份有限公司 | Miniature loudspeaker |
| CN205584481U (en) * | 2016-04-21 | 2016-09-14 | 歌尔声学股份有限公司 | Loudspeaker |
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| KR101520859B1 (en) * | 2013-07-15 | 2015-05-18 | 주식회사 디앤씨 | apparatus for making two-component type adhesive |
| CN104985789A (en) * | 2015-05-28 | 2015-10-21 | 深圳市鹏程华硅橡胶机电有限公司 | Liquid-state silica gel extrusion molding machine |
| CN106921268A (en) * | 2015-12-28 | 2017-07-04 | 埃森纳赫精密电机(苏州)有限公司 | A kind of process for filling colloid and its equipment for servomotor |
| CN107737539A (en) * | 2017-09-21 | 2018-02-27 | 常州市新创智能科技有限公司 | The resin and curing agent mixing arrangement and mixed method of a kind of automatic double surface gluer |
| CN109513358A (en) * | 2018-12-24 | 2019-03-26 | 歌尔股份有限公司 | A kind of mixed gluing method of high viscosity two-component glue |
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- 2018-12-20 CN CN201811565034.XA patent/CN109788405B/en active Active
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- 2019-09-29 WO PCT/CN2019/109001 patent/WO2020125126A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020071590A1 (en) * | 2000-12-09 | 2002-06-13 | Samsung Electro-Mechanics Co., Ltd. | Magnetic circuit of micro speaker |
| JP2015053805A (en) * | 2013-09-06 | 2015-03-19 | 株式会社東海理化電機製作所 | Magnetic circuit |
| CN204761701U (en) * | 2015-07-01 | 2015-11-11 | 歌尔声学股份有限公司 | Miniature loudspeaker |
| CN205584481U (en) * | 2016-04-21 | 2016-09-14 | 歌尔声学股份有限公司 | Loudspeaker |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110149575A (en) * | 2019-06-03 | 2019-08-20 | 歌尔股份有限公司 | A kind of sounding device |
| CN110149575B (en) * | 2019-06-03 | 2024-02-13 | 歌尔股份有限公司 | Sounding device |
| CN112261553A (en) * | 2020-10-16 | 2021-01-22 | 歌尔股份有限公司 | Magnetic circuit assembly manufacturing method, magnetic circuit assembly and loudspeaker |
| CN112261553B (en) * | 2020-10-16 | 2022-02-25 | 歌尔股份有限公司 | Magnetic circuit assembly manufacturing method, magnetic circuit assembly and loudspeaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109788405B (en) | 2020-08-25 |
| WO2020125126A1 (en) | 2020-06-25 |
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