CN206575598U - A kind of acoustical generator - Google Patents
A kind of acoustical generator Download PDFInfo
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- CN206575598U CN206575598U CN201720323390.5U CN201720323390U CN206575598U CN 206575598 U CN206575598 U CN 206575598U CN 201720323390 U CN201720323390 U CN 201720323390U CN 206575598 U CN206575598 U CN 206575598U
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- voice coil
- acoustical generator
- centring disk
- connector
- shaped steel
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Abstract
The utility model discloses a kind of acoustical generator, including shell, the magnetic circuit system being contained in shell and vibrational system, the vibrational system includes vibrating diaphragm and the voice coil loudspeaker voice coil combined with the vibrating diaphragm, the acoustical generator also includes centring disk, one end of the centring disk is fixedly connected by connector with the lateral wall of voice coil loudspeaker voice coil, and the other end of the centring disk is fixedly connected with shell.Centring disk is connected between voice coil loudspeaker voice coil lateral wall and outer shell bottom wall by connector, centring disk and connector can effectively prevent voice coil loudspeaker voice coil polarization vibrating diaphragm caused by from polarizing, and improve acoustical behavior.The machining accuracy of connector is high, can production it is high, connector former material selectable range is big, and processing is simple, with low cost, and connector is lightweight, it is ensured that on the basis of the weight of acoustical generator is significantly increased, resonance, polarization are prevented, without influenceing sensitivity.
Description
Technical field
The utility model is related to electro-acoustic product technical field, more particularly, to a kind of acoustical generator.
Background technology
Acoustical generator be it is a kind of can convert electrical energy into the device of acoustic energy, belong to most basic phonation unit, its extensively should
For in the terminal devices such as mobile phone.Acoustical generator monomer is made up of vibrational system and magnetic circuit system, can be completed basic electric energy and be turned
It is changed to the function of acoustic energy.
Acoustical generator includes the shell for being formed with receiving space and the vibrational system being contained in shell and magnetic circuit system.Sounding
The shell of device, which is provided with, is used to connecting the electrical connector of external circuit in acoustical generator, electrical connector respectively with voice coil leads and external electrical
Road is electrically connected, so as to turn on external circuit and voice coil leads, electric energy is inputted voice coil loudspeaker voice coil by external circuit via voice coil leads, so that
Voice coil vibrations are made by electromagnetic induction principle in acoustical generator, voice coil vibrations drive diaphragm oscillations sounding, so that electric energy is converted into
Acoustic energy, realizes the vocal function of acoustical generator.
Centring disk is used to support voice coil loudspeaker voice coil and shell, it is ensured that voice coil loudspeaker voice coil is vertically without crooked.Common acoustical generator is without centering branch
Piece, or centring disk need the upper surface with FPCB and voice coil loudspeaker voice coil to be fixed.In the prior art, first by FPCB front
The upper surface of voice coil loudspeaker voice coil is bonded in, then centring disk is bonded in FPCB reverse side, then centring disk is connected with shell.But
In actual production, the structure of centring disk and voice coil loudspeaker voice coil is bonded using FPCB, is had for FPCB machining tolerances and voice coil loudspeaker voice coil flatness
Very strict requirements, and the flatness of actual FPCB machining tolerances and voice coil loudspeaker voice coil upper surface is difficult to meet matching requirements, is easily occurred
It is bonded insecure, the problem of assembly difficulty is big.
Based on above-mentioned problem, it is desirable to provide a kind of acoustical generator, the acoustical generator do not use FPCB by feel relieved branch
The upper surface of piece and voice coil loudspeaker voice coil is fixed.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of acoustical generator, to solve to utilize FPCB in the prior art
The problem of bonding insecure and big assembly difficulty that bonding centring disk easily occurs with voice coil structure.
In order to solve the above technical problems, the utility model provides a kind of acoustical generator, including shell, the magnetic that is contained in shell
Road system and vibrational system, the vibrational system include vibrating diaphragm and the voice coil loudspeaker voice coil combined with the vibrating diaphragm, and the acoustical generator also includes
Centring disk, one end of the centring disk is fixedly connected by connector with the lateral wall of voice coil loudspeaker voice coil, the centring disk it is another
One end is fixedly connected with shell.
Preferably, the connector is L-shaped steel disc, and the L-shaped steel disc includes long side and short side.
Preferably, the short side lateral surface of the L-shaped steel disc is fixedly connected with voice coil loudspeaker voice coil lateral wall, the long side of the L-shaped steel disc
Medial surface is fixedly connected with one end of centring disk.
Preferably, the centring disk includes bending part and the flat part positioned at bending part two ends, the bending part and institute
The ring for stating vibrating diaphragm is bent to same direction, and the flat part at the bending part two ends is in same level.
Preferably, the length of the flat part of described centring disk one end and the length of the long side medial surface of the L-shaped steel disc
Equal and complete laminating.
Preferably, the positioning matched with the flat part of the centring disk other end is provided with the end face of the shell
Boss.
Preferably, the both sides of the positioning boss are provided with positive stop.
Preferably, the upper surface of the positioning boss is concordant with the long side medial surface of the L shaped plate.
Preferably, the length ratio of the long side of the L-shaped steel plate and short side is 3:2.
The beneficial effects of the utility model are as follows：
Centring disk is connected to voice coil loudspeaker voice coil lateral wall and shell by the utility model by above technical scheme by connector
Between, centring disk and connector can effectively prevent voice coil loudspeaker voice coil polarization vibrating diaphragm caused by from polarizing, and improve acoustical behavior.Connection
The machining accuracy of part is high, can production it is high, connector former material selectable range is big, and processing is simple, with low cost, and connector weight
Amount is light, it is ensured that on the basis of the weight of acoustical generator is significantly increased, resonance, polarization are prevented, without influenceing sensitivity.
Brief description of the drawings
Embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings；
Fig. 1 shows a kind of structural representation of acoustical generator of the present utility model；
Fig. 2 shows the L-shaped steel disc and centring disk partial sectional view of a kind of acoustical generator of the present utility model.
Drawing reference numeral：1 shell, 101 positioning boss, 102 positive stops, 2 magnetic circuit systems, 3 vibrational systems, 4 voice coil loudspeaker voice coils, 5 L
Shape steel disc, 6 centring disks, 7 voice coil suspensions.
Embodiment
In order to illustrate more clearly of the utility model, the utility model is done into one with reference to preferred embodiments and drawings
The explanation of step.Similar part is indicated with identical reference in accompanying drawing.It will be appreciated by those skilled in the art that below
Specifically described content is illustrative and be not restrictive, and protection domain of the present utility model should not be limited with this.
Referring to Fig. 1 and Fig. 2, Fig. 1 shows a kind of structural representation of acoustical generator of the present utility model, and Fig. 2 shows this practicality
The L-shaped steel disc and centring disk partial sectional view of a kind of new acoustical generator.Asked based on technology to be solved in the utility model
Topic, solves to be bonded the bonding insecure and assembly difficulty that centring disk easily occurs with voice coil structure using FPCB in the prior art
Big the problem of.By setting connector on the lateral wall of voice coil loudspeaker voice coil, using connector by voice coil loudspeaker voice coil lateral wall and cage connection.
Specifically, the utility model provides a kind of acoustical generator, including shell 1, the and of magnetic circuit system 2 that is contained in shell 1
Vibrational system 3, the shell 1 includes annular sidewall and the bottom wall extended internally out by sidewall bottom, it is necessary to illustrate, herein
The bottom of shell only refer to the part extended inward by four side walls, but in specific implementation process, the bottom wall of shell
It is not that can connect the structure of two relative side walls, its middle part is generally hollow design, in order to be assembled with magnetic circuit.It is described
Vibrational system 3 includes vibrating diaphragm and the voice coil loudspeaker voice coil 4 combined with vibrating diaphragm, and a part of the voice coil loudspeaker voice coil 4 close to one end of magnetic circuit is suspended at institute
In the magnetic gap for stating magnetic circuit system 2.
The acoustical generator also includes centring disk 6, and the centring disk 6 includes bending part and positioned at the flat of bending part two ends
Straight portion, the ring part of the bending part and vibrating diaphragm can have towards unidirectional bending, and the flat part at two ends is in same water
In plane.The bending part of centring disk 6 can ensure that while positioning and supporting voice coil loudspeaker voice coil 4, voice coil loudspeaker voice coil 4 is not influenceed for centring disk 6
Vibration.
The flat part of described one end of centring disk 6 is fixedly connected by connector with the lateral wall of voice coil loudspeaker voice coil 4, the centering branch
The flat part of the other end of piece 6 is fixedly connected with the bottom wall of shell 1.So be achieved that using connector by the lateral wall of voice coil loudspeaker voice coil 4 with
The connection of the bottom wall of shell 1, instead of and be pasted on centring disk 6 produced by the upper surface of voice coil loudspeaker voice coil 4 using FPCB in the prior art
Technical problem.
In the present embodiment, the connector is preferably L-shaped steel disc 5, and the L-shaped steel disc 5 includes long side and short side, described
The long side of L-shaped steel disc 5 and the length ratio of short side are 3:2.The machining accuracy of L-shaped steel disc 5 is high, can production it is high, former material is optional
Select scope big, processing is simple, with low cost, and L-shaped steel disc 5 is lightweight, it is ensured that the weight of acoustical generator is not significantly increased
On the basis of, resonance, polarization are prevented, without influenceing sensitivity.
The short side lateral surface of the L-shaped steel disc 5 is fixedly connected with the lateral wall of voice coil loudspeaker voice coil 4, on the inside of the long side of the L-shaped steel disc 5
Face is fixedly connected with the flat part of the one end of centring disk 6.
The equal length of the length of the flat part of described one end of centring disk 6 and the long side medial surface of the L-shaped steel disc 5 and
Laminating completely.
Specifically, the bottom wall short shaft end face of the shell 1 includes matching with the flat part of the other end of centring disk 6
Positioning boss 101.The both sides of the positioning boss 101 are provided with positive stop 102.Positioning boss 101 and centring disk 6 are another
The flat part at end is fixedly connected, and the effect of positive stop 102 is that the flat part for preventing the other end of centring disk 6 is being assembled or worked
When produce lateral displacement, so as to influence the normal vibration of voice coil loudspeaker voice coil 4.
The upper surface of the positioning boss 101 is concordant with the long side medial surface of the L-shaped steel disc 5.Due to 6 liang of centring disk
The flat part at end is in same level, and the upper surface of positioning boss 101 is concordant with the long side madial wall of the L-shaped steel disc 5,
It is ensured that the positioning of voice coil loudspeaker voice coil 4 in the Z-axis direction, because the inside dimension of each acoustical generator is different, the entrance magnetic circuit system of voice coil loudspeaker voice coil 4
Size in the magnetic gap of system 2 is also different, so needing to be positioned voice coil loudspeaker voice coil 4 in Z-direction in assembling, it is ensured that preferably
Acoustical behavior.
In addition, the vibrational system 3 also includes the voice coil suspension 7 for being bonded in vibrating diaphragm central portion, the two of the voice coil suspension 7
End is folded upward at extension and taken the shape of the letter U.The two ends support of the voice coil suspension 7 is fitted on the madial wall of the voice coil loudspeaker voice coil 4.Voice coil suspension
7 effect is support voice coil loudspeaker voice coil 4 and prevents voice coil loudspeaker voice coil 4 to be deformed, while voice coil loudspeaker voice coil 4 is connected with vibrating diaphragm.
What word " on ", " under ", the "left", "right" in the description orientation employed in this paper etc. were for explanation facilitates base
For orientation in accompanying drawing shown in drawing, in actual device these orientation may due to device disposing way and
It is different.
It should be appreciated that above-described embodiment of the present utility model is only intended to clearly illustrate the act that the utility model is made
Example, and it is not the restriction to embodiment of the present utility model, for those of ordinary skill in the field, above-mentioned
It can also make other changes in different forms, all embodiments can not be given thoroughly here on the basis of explanation
Lift, it is every to belong to obvious changes or variations that the technical solution of the utility model extends out still in the utility model
Protection domain row.
Claims (9)
1. a kind of acoustical generator, including shell, the magnetic circuit system that is contained in shell and vibrational system, the vibrational system includes shaking
Film and the voice coil loudspeaker voice coil combined with the vibrating diaphragm, it is characterised in that
The acoustical generator also includes centring disk, and one end of the centring disk is fixed by the lateral wall of connector and voice coil loudspeaker voice coil to be connected
Connect, the other end of the centring disk is fixedly connected with shell.
2. a kind of acoustical generator according to claim 1, it is characterised in that
The connector is L-shaped steel disc, and the L-shaped steel disc includes long side and short side.
3. a kind of acoustical generator according to claim 2, it is characterised in that
The short side lateral surface of the L-shaped steel disc is fixedly connected with voice coil loudspeaker voice coil lateral wall, long side medial surface and the centering of the L-shaped steel disc
One end of branch piece is fixedly connected.
4. a kind of acoustical generator according to claim 2, it is characterised in that
The centring disk includes bending part and the flat part positioned at bending part two ends, the ring of the bending part and the vibrating diaphragm
Bent to same direction, the flat part at the bending part two ends is in same level.
5. a kind of acoustical generator according to claim 4, it is characterised in that
The length of the flat part of described centring disk one end and the equal length and complete patch of the long side medial surface of the L-shaped steel disc
Close.
6. a kind of acoustical generator according to claim 5, it is characterised in that
The positioning boss matched with the flat part of the centring disk other end is provided with the end face of the shell.
7. a kind of acoustical generator according to claim 6, it is characterised in that
The both sides of the positioning boss are provided with positive stop.
8. a kind of acoustical generator according to claim 7, it is characterised in that
The upper surface of the positioning boss is concordant with the long side medial surface of the L-shaped steel disc.
9. a kind of acoustical generator according to claim 2, it is characterised in that
The long side of the L-shaped steel disc and the length ratio of short side are 3:2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720323390.5U CN206575598U (en) | 2017-03-30 | 2017-03-30 | A kind of acoustical generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720323390.5U CN206575598U (en) | 2017-03-30 | 2017-03-30 | A kind of acoustical generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206575598U true CN206575598U (en) | 2017-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720323390.5U Active CN206575598U (en) | 2017-03-30 | 2017-03-30 | A kind of acoustical generator |
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| Country | Link |
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| CN (1) | CN206575598U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111510831A (en) * | 2020-04-16 | 2020-08-07 | 歌尔股份有限公司 | Sound producing device |
| WO2020181892A1 (en) * | 2019-03-14 | 2020-09-17 | 歌尔股份有限公司 | Sound production apparatus and electronic device |
-
2017
- 2017-03-30 CN CN201720323390.5U patent/CN206575598U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020181892A1 (en) * | 2019-03-14 | 2020-09-17 | 歌尔股份有限公司 | Sound production apparatus and electronic device |
| CN111510831A (en) * | 2020-04-16 | 2020-08-07 | 歌尔股份有限公司 | Sound producing device |
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