CN105916083A - Mini-type loudspeaker - Google Patents
Mini-type loudspeaker Download PDFInfo
- Publication number
- CN105916083A CN105916083A CN201610293402.4A CN201610293402A CN105916083A CN 105916083 A CN105916083 A CN 105916083A CN 201610293402 A CN201610293402 A CN 201610293402A CN 105916083 A CN105916083 A CN 105916083A
- Authority
- CN
- China
- Prior art keywords
- magnet
- flange
- microspeaker
- self
- limit
- 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.)
- Granted
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Classifications
-
- 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
- H04R9/06—Loudspeakers
-
- 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
- H04R9/025—Magnetic circuit
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2400/00—Loudspeakers
- H04R2400/11—Aspects regarding the frame of loudspeaker transducers
Abstract
The present invention discloses a mini-type loudspeaker. The mini-type loudspeaker comprises a magnetic circuit system which includes a basin stand and a magnet fixed on the basin stand. The magnet includes an internal magnet and a side magnet; the basin stand includes a bottom and a side wall arranged around the bottom, an inwards bending flange is arranged at the top of the side wall, and the flange is applied to the upper surface of the magnet; the side magnet is correspondingly fixed at the gap between the bottom of the basin stand, the side wall and the flange; and an inner concave self-locking cooperation portion is arranged at the inner side of the side magnet, and a self-locking portion fastening the self-locking cooperation portion is arranged at the position of the flange corresponding to the self-locking cooperation portion. The side magnet is arranged between the flange and the bottom and is clamped by the self-locking portion and the self-locking cooperation portion which are mutually locked to allow the structures of the magnet circuit system and the housing to have large intensity; the assembling gap caused by bonding the viscose glue is reduced, the magnetic resistance is decreased and the performance is optimized; and the Edge washers are omitted, the structure and the assembling technologies are simplified, and the acoustics performance is better.
Description
Technical field
The present invention relates to electro-acoustic product technical field, particularly relate to a kind of Microspeaker.
Background technology
Microspeaker is the important acoustic element of portable electric appts, has been used for the signal of telecommunication and has believed with sound
Conversion between number, is a kind of energy conversion device.Existing Microspeaker includes vibrational system and magnetic circuit
System, wherein magnetic circuit system includes Magnet, washer and frame.Because of above-mentioned structure arrange make its when assembling,
Magnet, washer and frame add up because location exists tolerance with frock, cause concentricity difference relatively, make miniature raising one's voice
The acoustical behavior of device is poor.
Microspeaker is in order to meet acoustical behavior demand, and structural member is more and more less, increasingly weaker, therewith
Bring is that integrity problem becomes increasingly conspicuous, then how under relatively small space, it is achieved optimized
Acoustical behavior and guarantee good reliability, become a common problem.
Summary of the invention
The present invention provides a kind of structure to simplify, packaging technology simplifies and the miniature of acoustical behavior reliability is raised one's voice
Device.
For solving above-mentioned technical problem, the technical scheme is that
A kind of Microspeaker includes that vibrational system and magnetic circuit system, described magnetic circuit system include frame and fix
Magnet in described frame, described Magnet includes internal magnet and limit Magnet；Described frame includes bottom and sets
Putting the sidewall in described bottom surrounding, the top of described sidewall is provided with the flange bent inwards, described flange with
The upper surface laminating of described limit Magnet；Described limit Magnet correspondence is fastened in bottom described frame, described sidewall with
Within the space that described flange is formed；The self-locking auxiliary section of indent, described flange pair it is provided with inside the Magnet of described limit
Should the position of described self-locking auxiliary section be provided with described self-locking auxiliary section is locked from lock section.
Optimal way is, described self-locking auxiliary section is respectively arranged on two ends inside the Magnet of described limit；Described
The end positions of described frame flange it is correspondingly arranged at from lock section.
Optimal way is, described from lock section be from the inside edge that described flange and described limit Magnet fit to
The crotch structure extended near the direction of described frame sidewall.
Optimal way is, the described front end from lock section is provided with inclination angle；Described limit Magnet is along the inclination at described inclination angle
Within the space that direction and angle are inserted bottom described frame, described sidewall and described flange are collectively forming.
Optimal way is, the described sidewall between described flange and described bottom is provided with discontinuous logical
Hole.
Optimal way is, is connected as one by least two dowels between described flange and described bottom,
Described dowel is arranged on described sidewall between discontinuous through hole.
Optimal way is, the thickness of described flange is less than the thickness of described bottom.
Optimal way is, described internal magnet is provided with interior washer, the thickness of described flange and described interior washer
Consistency of thickness.
Optimal way is, described limit Magnet is provided with two, and two described limit Magnet lay respectively at described bottom
The marginal position on long limit, both sides, the described sidewall being positioned at Chang Bian position, these both sides is provided with described flange.
Optimal way is, described limit Magnet is provided with four, and four described limit Magnet lay respectively at the four of described bottom
Lateral edges position, sidewall described in four sides is equipped with described flange
After using technique scheme, the invention has the beneficial effects as follows: due to the Microspeaker bag of the present invention
Including vibrational system and magnetic circuit system, wherein magnetic circuit system includes frame and the Magnet being fixed in frame, Magnet
Including internal magnet and limit Magnet；Frame includes bottom and is arranged on the sidewall of bottom surrounding, and the top of sidewall sets
There is the flange bent inwards, the upper surface laminating of this flange and limit Magnet；Limit Magnet correspondence is fastened at the bottom of frame
Within the space that portion, sidewall and flange are formed；The self-locking auxiliary section of indent, flange pair it is provided with inside the Magnet of limit
The position answering self-locking auxiliary section be provided with by self-locking auxiliary section lock from lock section.Because limit Magnet is located at flange and the end
Between portion, being interlocked blocking from lock section and self-locking auxiliary section of sum mutually, the structural strength making magnetic circuit system is big,
The structural strength being so attached to the shell on magnetic circuit system have also been obtained guarantee, thus ensure that monomer is overall
The intensity of structure；Decrease the fit-up gap that viscose glue produces because of bonding simultaneously, reduce magnetic resistance and optimize performance.
Again because being provided with through hole on the sidewall between flange and bottom, it is therefore prevented that magnet short-cut path, further increase micro-
The acoustical behavior reliability of type speaker.And the fixed form of limit of the present invention Magnet, make magnetic circuit system omit
Limit washer, simplifies structure, so that assembly technology have also been obtained simplification.During assembling, each structural member leans on thing
It is mutually located between material, preferably ensure that the concentricity between structural member, make acoustical behavior more preferable.Therefore
The Microspeaker of the present invention, under relatively small space, it is achieved that optimized acoustical behavior, and protects
Demonstrate,prove good reliability.
Owing to being connected as one by least two dowels between flange and bottom, dowel is arranged at sidewall
Between upper discontinuous through hole；While preventing magnet short-cut path, flange is allowed to be reliably connected with bottom.
Owing to the thickness of flange is less than the thickness of bottom, optimize the acoustical behavior of Microspeaker.
In sum, the Microspeaker of the present invention compared with prior art, solves owing to acoustical behavior needs
Asking, structural member is more and more less, increasingly weaker, causes the technical problem that reliability is the best, and the present invention
Microspeaker, under relatively small space, it is achieved that optimized acoustical behavior, and ensures good
Reliability.
Accompanying drawing explanation
Fig. 1 is the structural representation of Microspeaker of the present invention；
Fig. 2 is the structural representation of the magnetic circuit system of Microspeaker of the present invention；
Fig. 3 is the explosive view of the magnetic circuit system of Microspeaker of the present invention；
The sectional structure schematic diagram of Fig. 4 Microspeaker of the present invention；
Fig. 5 is the schematic cross-section in A A direction in Fig. 2；
In figure: 1 frame, 10 flange, 11 dowels, 12 through holes, 13 sidewalls, 14 self-lockings
Portion, 15 hot melt holes, bottom 16,2 limit Magnet, 20 self-locking auxiliary sections, washer in 3, in 4
Magnet, 5 shells, 6 hot molten columns, 7 voice coil loudspeaker voice coils, 8 vibrating diaphragms, 9 protecgulums, 21 damping screens, 22
DOME, 30 shell fragments.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and reality
Execute example, the present invention is further elaborated.Only should be appreciated that specific embodiment described herein
Only in order to explain the present invention, it is not intended to limit the present invention.
Embodiment one:
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4 and Fig. 5, a kind of Microspeaker includes be combineding with each other one
Vibrational system and magnetic circuit system is contained in the space that the protecgulum 9 risen and shell 5, protecgulum 9 and shell 5 surround,
Magnetic circuit system includes frame 1 and is fixed on the Magnet in frame 1, and Magnet includes internal magnet 4 and limit Magnet 2,
Internal magnet 4 is arranged above with interior washer 3.Vibrational system includes that edge part is fixed between protecgulum 9 and shell 5
Vibrating diaphragm 8, vibrating diaphragm 8 is combined with DOME22 near a middle side part of protecgulum 9, and the opposite side of vibrating diaphragm 8 is combined with
Voice coil loudspeaker voice coil 7.Protecgulum 9 is provided with out acoustic aperture, goes out to be coated with at acoustic aperture damping screen 21.It is additionally provided with bullet on shell 5
Sheet 30, the lead-in wire of one end and voice coil loudspeaker voice coil 7 that shell fragment 30 is positioned at shell 5 electrically connects, and shell fragment 30 is positioned at shell
One end outside 5 electrically connects with external circuit.
The frame 1 of the Microspeaker of the present invention includes bottom 16 and is arranged on the sidewall of bottom 16 surroundings,
The top of sidewall is provided with the flange 10 bent inwards, the upper surface laminating of flange 10 and limit Magnet 2；Limit Magnet
Within 2 correspondences are fastened in the space that the bottom 16 of frame 1, sidewall and flange 10 are formed.Inside limit Magnet 2
Being provided with the self-locking auxiliary section 20 of indent, the position of the corresponding self-locking auxiliary section 20 of flange 10 is provided with and self-locking is coordinated
Portion 20 locking from lock section 14.After limit Magnet 2 inserts between flange 10 and bottom 16, from lock section 14 He
Self-locking auxiliary section 20 automatically lock and, limit Magnet 2 is pinned, thoroughly solves Magnet, asking of Magnet fracture
Topic.And after limit Magnet 2 is stuck, it is not necessary to use viscose glue debindered, reduce the assembly building that viscose glue brings
Gap, reduces magnetic resistance, optimizes performance, simplifies assembly technology.
The Microspeaker of the present embodiment is three magnetic circuits, and its limit Magnet 2 is provided with two, two limit Magnet 2 points
Not being positioned at the marginal position on the long limit, both sides of bottom 16, the sidewall being positioned at Chang Bian position, these both sides is provided with flange
10。
As shown in Fig. 2, Fig. 3 and Fig. 5, self-locking auxiliary section 20 is respectively arranged on two ends inside limit Magnet 2
Portion；The end positions of the flange 10 of frame 1 it is correspondingly arranged at from lock section 14.It is from flange 10 from lock section 14
The crotch structure that the inside edge fitted with limit Magnet 2 extends to the direction of the sidewall near frame 1.From
The front end of lock section 14 is provided with inclination angle.Limit Magnet 2 inserts the bottom of frame 1 along the incline direction at inclination angle and angle
16, within the space that sidewall and flange 10 are collectively forming.
As shown in Figure 1, Figure 2 and Figure 3, in order to prevent magnet short-cut path, between flange 10 and bottom 16
Sidewall is provided with through hole 12, and is connected as by least two dowels 11 between flange 10 and bottom 16
Integrally, dowel 11 is arranged on sidewall between discontinuous through hole 12, and through hole 12 makes outside limit Magnet 2
Outside side is exposed to, make flux path unimpeded.
As shown in Figure 4 and Figure 5, the thickness of flange 10 is less than the thickness of bottom 16, by ironed for flange 10,
Achieve the structure that flange 10 is different from bottom 16 thickness, allow the acoustical behavior of Microspeaker be optimized.
The dowel 11 of the present embodiment is provided with three, and three dowels 11 lay respectively at two ends and the center of flange 10
Position.Relying on two ends and centrally disposed dowel 11, flange 10 is lived by secure support.
As it is shown in figure 5, arrange interior washer 3 on internal magnet 4, the thickness of the thickness language flange 10 of interior washer 3
Degree is consistent；When making the internal magnet 4 of the present invention, limit Magnet 2, interior washer 3 and frame 1 assemble, rely on thing
Material is mutually located reduction concentricity, positions relatively reliable, further simplify assembly technology.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, four corners of the shell 5 of the present embodiment are provided with hot molten column
6, on bottom 16, the position of corresponding each hot molten column 6 is provided with the hot melt hole 15 suitable with hot molten column 6, outside making
Shell 5 and frame 1 use the mode of hot melt to combine.After shell 5 and frame 1 combine, phase
Viscose glue is also coated in contact position mutually, goes the reliability ensureing to combine.At main gluing it is: flange 10 and shell
The contact position of 5, the sidewall 13 of frame 1 and the contact position of shell 5.Additionally between protecgulum 9 and shell 5 also
The mode using hot melt combines.
The magnetic circuit system of the Microspeaker of the present invention is a complete entirety, and the working of plastics of shell 5 depends on
On the magnetic circuit system that intensity is bigger, thus ensure that the integrally-built intensity of monomer.By interior washer 3 He
Frame 1 integrally fixes Magnet, and Magnet is completely wrapped in frame 1, reduces magnetic in drop test
Ferrum impact force, thus reduce Magnet risk of breakage.
The Microspeaker of the present invention cancels two limit washers simultaneously, simplifies structure and packaging technology.Take simultaneously
Disappear washer, changes packaging technology, by positioning between material, preferably ensures the concentricity between structural member,
Make performance more preferable.
Embodiment two:
The present embodiment is essentially identical with embodiment one, and difference is: the Microspeaker of the present embodiment
The limit Magnet of magnetic circuit system is provided with four, and four edges Magnet lays respectively at the four side edge position of bottom, four sides
Flange it is equipped with on sidewall.
Dowel quantity between four side flangings and bottom is different according to the position difference of flange.In bottom
Long side edge side flange and bottom between, be provided with three dowels, these three dowel positions arrange with
Embodiment one is identical.Or, between flange and the bottom of the short side edge side of bottom, it is provided with two connections
Muscle, these two dowels are respectively provided at the two ends of flange at this.Certainly, the particular location of dowel and number
And be not limited by the description set out above.
The preferred embodiment of present invention described above, not in order to limit the present invention, all the present invention's
Any amendment of being made within spirit and principle, etc. the improvement etc. of same Microspeaker structure, all should wrap
Within being contained in protection scope of the present invention.
Claims (10)
1. a Microspeaker, including vibrational system and magnetic circuit system, described magnetic circuit system include frame and
Being fixed on the Magnet in described frame, described Magnet includes internal magnet and limit Magnet；Described frame includes bottom
And it being arranged on the sidewall of described bottom surrounding, it is characterised in that the top of described sidewall is provided with and bends inwards
The upper surface laminating of flange, described flange and described limit Magnet；Described limit Magnet correspondence is fastened in described frame
Within the space that bottom, described sidewall and described flange are formed；The self-locking being provided with indent inside the Magnet of described limit is joined
Conjunction portion, the position of the corresponding described self-locking auxiliary section of described flange is provided with the self-locking locked described self-locking auxiliary section
Portion.
Microspeaker the most according to claim 1, it is characterised in that described self-locking auxiliary section is respectively
It is located at two ends inside the Magnet of described limit；The described position, two ends being correspondingly arranged at described frame flange from lock section
Put.
Microspeaker the most according to claim 2, it is characterised in that described is from described from lock section
The inside edge that flange and described limit Magnet fit is to the crotch knot extended near the direction of described frame sidewall
Structure.
Microspeaker the most according to claim 3, it is characterised in that the described front end from lock section sets
There is inclination angle；Described limit Magnet inserts bottom described frame along incline direction and the angle at described inclination angle, described side
Within the space that wall and described flange are collectively forming.
Microspeaker the most according to claim 1, it is characterised in that be positioned at described flange with described
Described sidewall between Di Bu is provided with discontinuous through hole.
Microspeaker the most according to claim 5, it is characterised in that described flange and described bottom
Between connected as one by least two dowels, described dowel is arranged on described sidewall discontinuous
Between through hole.
Microspeaker the most according to claim 6, it is characterised in that the thickness of described flange is less than
The thickness of described bottom.
Microspeaker the most according to claim 7, it is characterised in that in described internal magnet is provided with
The consistency of thickness of washer, the thickness of described flange and described interior washer.
9. according to the Microspeaker described in claim 2 to 8 any claim, it is characterised in that institute
Stating limit Magnet and be provided with two, two described limit Magnet lays respectively at the marginal position on the long limit, both sides of described bottom,
The described sidewall being positioned at Chang Bian position, these both sides is provided with described flange.
10. according to the Microspeaker described in claim 2 to 8 any claim, it is characterised in that institute
Stating limit Magnet and be provided with four, four described limit Magnet lay respectively at the four side edge position of described bottom, four sides
Described flange it is equipped with on described sidewall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610293402.4A CN105916083B (en) | 2016-05-05 | 2016-05-05 | A kind of Microspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610293402.4A CN105916083B (en) | 2016-05-05 | 2016-05-05 | A kind of Microspeaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105916083A true CN105916083A (en) | 2016-08-31 |
| CN105916083B CN105916083B (en) | 2019-05-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610293402.4A Active CN105916083B (en) | 2016-05-05 | 2016-05-05 | A kind of Microspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105916083B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019205658A1 (en) * | 2018-04-27 | 2019-10-31 | 歌尔股份有限公司 | Sound producing device, sound producing module, and electronic terminal |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1148761A2 (en) * | 2000-04-21 | 2001-10-24 | Citizen Electronics Co., Ltd. | Multiple-function transducer |
| CN101959095A (en) * | 2009-07-17 | 2011-01-26 | 何若冲 | Combined coaxial loudspeaker |
| CN203368739U (en) * | 2013-06-14 | 2013-12-25 | 歌尔声学股份有限公司 | Micro speaker |
| CN204217121U (en) * | 2014-10-20 | 2015-03-18 | 瑞声光电科技(常州)有限公司 | Magnetic circuit system and apply the electro-acoustic element of this magnetic circuit system |
-
2016
- 2016-05-05 CN CN201610293402.4A patent/CN105916083B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1148761A2 (en) * | 2000-04-21 | 2001-10-24 | Citizen Electronics Co., Ltd. | Multiple-function transducer |
| CN101959095A (en) * | 2009-07-17 | 2011-01-26 | 何若冲 | Combined coaxial loudspeaker |
| CN203368739U (en) * | 2013-06-14 | 2013-12-25 | 歌尔声学股份有限公司 | Micro speaker |
| CN204217121U (en) * | 2014-10-20 | 2015-03-18 | 瑞声光电科技(常州)有限公司 | Magnetic circuit system and apply the electro-acoustic element of this magnetic circuit system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019205658A1 (en) * | 2018-04-27 | 2019-10-31 | 歌尔股份有限公司 | Sound producing device, sound producing module, and electronic terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105916083B (en) | 2019-05-28 |
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| CB02 | Change of applicant information |
Address after: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Applicant after: Goertek Inc. Address before: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Applicant before: Goertek Inc. |
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