CN206674194U - Acoustical generator and the acoustical generator module including the acoustical generator - Google Patents
Acoustical generator and the acoustical generator module including the acoustical generator Download PDFInfo
- Publication number
- CN206674194U CN206674194U CN201720458906.7U CN201720458906U CN206674194U CN 206674194 U CN206674194 U CN 206674194U CN 201720458906 U CN201720458906 U CN 201720458906U CN 206674194 U CN206674194 U CN 206674194U
- Authority
- CN
- China
- Prior art keywords
- acoustical generator
- pressure release
- magnetic yoke
- conductive magnetic
- release passage
- 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.)
- Active
Links
Landscapes
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model discloses a kind of acoustical generator, including shell and the vibrational system being contained in the shell and magnetic circuit system, the vibrational system includes vibrating diaphragm and voice coil loudspeaker voice coil, the magnetic circuit system includes magnet and conductive magnetic yoke, and the corner of magnetic circuit system is communicated with the inside and outside pressure release passage of acoustical generator, the conductive magnetic yoke is provided with the block piece for pressure release passage described in partial occlusion integrally extended as conductive magnetic yoke in the position corresponding with pressure release passage, the utility model also discloses a kind of acoustical generator module including the acoustical generator, the utility model sets block piece by corresponding in conductive magnetic yoke at pressure release passage, partial occlusion is carried out to pressure release passage, effectively reduce the noise of pressure release passage introducing, improve the tonequality of acoustical generator.
Description
Technical field
It the utility model is related to electroacoustic switch technology field.More particularly, to a kind of acoustical generator and including the sounding
The acoustical generator module of device.
Background technology
Acoustical generator is a kind of device that can convert electrical energy into acoustic energy, belongs to most basic phonation unit, and it extensively should
For in the terminal devices such as mobile phone.In recent years, in order to meet the appearance requirement of the electronic products such as mobile phone, the volume of electronic product is not
Disconnected to reduce, profile tends to be lightening, and therefore, the volume of the acoustical generator in electronic product also tends to small-sized light thinning.
Acoustical generator includes the shell formed with receiving space and the vibrational system being contained in the shell and magnetic circuit system,
Vibrational system includes vibrating diaphragm and is incorporated in the voice coil loudspeaker voice coil of vibrating diaphragm side, and magnetic circuit system forms the magnetic gap for housing voice coil loudspeaker voice coil.Voice coil loudspeaker voice coil is in magnetic
Vibration is produced in the presence of the system Ampere force of road, drives diaphragm oscillations sounding to realize the vocal function of acoustical generator.Shape on front side of vibrating diaphragm
Into the preceding operatic tunes, the operatic tunes after being formed on rear side of vibrating diaphragm, the preceding operatic tunes and the rear operatic tunes are mutually isolated, in order to avoid rear sound during diaphragm oscillations
Chamber air pressure is unbalanced, increases the vibration resistance of vibrating diaphragm, and causing acoustical generator to go out, sound is bad, and current acoustical generator is generally in magnetic circuit system
Expose the corner on the outside of acoustical generator and open up pressure release passage, the air pressure of the operatic tunes after balance, reduce the resistances of diaphragm oscillations.The opposing party
Face, the electric connection structure for connecting acoustical generator internal circuit and external circuit are generally arranged at the corner of acoustical generator and need to occupy one
Determine space.To reduce acoustical generator overall outer dimensions, the electric connection structure typically utilizes the pressure release passage institute in magnetic circuit system corner
Segment space is provided so as to cause the opening of pressure release passage larger.Large-sized pressure release passage causes to enter vibration in magnetic circuit system
The air-flow of system is larger, and noise is formed in vibrational system, causes the tonequality of acoustical generator and goes out the reduction of sound yield.
Accordingly, it is desirable to provide a kind of acoustical generator that can either ensure diaphragm oscillations and can and enough reduce noise, improves acoustical generator
Tonequality.
Utility model content
A purpose of the present utility model is to provide a kind of acoustical generator, to reduce hair while diaphragm oscillations are ensured
The noise of sound device, improve the tonequality of acoustical generator and go out sound yield.Another purpose of the present utility model is that providing one kind includes
The acoustical generator module of the acoustical generator.
To reach above-mentioned purpose, the utility model uses following technical proposals：
The utility model discloses a kind of acoustical generator, including shell and the vibrational system and magnetic circuit that are contained in the shell
System, the vibrational system include vibrating diaphragm and voice coil loudspeaker voice coil, and the magnetic circuit system includes magnet and conductive magnetic yoke, and the corner of magnetic circuit system
The inside and outside pressure release passage of acoustical generator is communicated with,
The conductive magnetic yoke is provided with the position corresponding with pressure release passage to be used to partly hide by what conductive magnetic yoke was integrally extended
Keep off the block piece of the pressure release passage.
Preferably, the conductive magnetic yoke includes the bottom wall of horizontal direction, and centring magnet and four sides are provided with the bottom wall
Magnet, the gap for accommodating voice coil loudspeaker voice coil is formed between the centring magnet and side magnet, gap and bottom between the four side magnet
The breach in four corners of wall forms the pressure release passage.
Preferably, the block piece includes the first occlusion part for being used to block the conductive magnetic yoke bottom wall breach of horizontal direction
With the second occlusion part that the bending of bottom wall direction is directed away from from first occlusion part.
Preferably,
The medial surface of the occlusion part of block piece second is located on the inside of the corresponding edge magnet for forming gap outside line.
Preferably, the bottom wall of the conductive magnetic yoke including horizontal direction and along the vertically extending side wall of bottom wall edge, the bottom
Wall is provided with centring magnet, the gap of formation receiving voice coil loudspeaker voice coil between the centring magnet and the side wall, and the four of the conductive magnetic yoke
Breach is opened up on individual corner and side wall and forms the pressure release passage.
Preferably, the block piece includes the first occlusion part for being used to block the conductive magnetic yoke bottom wall breach of horizontal direction
With the second occlusion part that the bending of bottom wall direction is directed away from from first occlusion part.
Preferably,
The medial surface of the occlusion part of block piece second is located at line on the inside of the respective side walls for forming conductive magnetic yoke side wall breach
Outside.
Preferably, the block piece is located at the centre position of the pressure release passage, and the pressure release passage is divided into two
Point.
Preferably, the block piece is molded with conductive magnetic yoke integrated punching.
The utility model also discloses a kind of acoustical generator module, and the acoustical generator module includes module shell and is fixed on institute
State the acoustical generator as described above in module shell.
The utility model sets block piece to carry out the pressure release passage of partial occlusion magnetic circuit system in acoustical generator conductive magnetic yoke.Block
Part may be configured as the second screening for including the first horizontal occlusion part and the bending of bottom wall direction being directed away from from first occlusion part
Stopper.Wherein, the first occlusion part of block piece and conductive magnetic yoke bottom wall one, for blocking the breach in conductive magnetic yoke bottom wall corner.The
One occlusion part blocks to the breach in conductive magnetic yoke bottom wall corner, equivalent to the area for increasing conductive magnetic yoke bottom wall, reduces and leads
The size of yoke bottom wall breach, so as to reduce the noise of conductive magnetic yoke bottom wall breach introducing.Second occlusion part of block piece is from institute
State the first occlusion part and be directed away from bottom wall direction in strip extension, part can be carried out to the pressure release passage in acoustical generator short transverse
Block, so as to further reduce the noise that pressure release passage introduces.
Second occlusion part is preferably located on the center of pressure release passage, and pressure release passage is divided into and blocked positioned at second
Two parts of portion both sides.Second occlusion part is arranged on the center of pressure release passage, can make acoustical generator outer gas stream from block piece both sides
Uniformly flow into, avoid influenceing the vibration sounding of vibrating diaphragm.On the outside of magnetic circuit system conductive magnetic yoke with acoustical generator shell interior side contacts, on shell
The fixed part for stating conductive magnetic yoke in residence is fixed provided with formation, fixed part opens up corresponding with pressure release passage shape at corresponding pressure release passage
Breach, with pressure release passage coordinate, ensure acoustical generator inside and outside air current flow patency.The medial surface of the occlusion part of block piece second
The side magnet is preferably located to form line on the inside of the edge in gap or formed on the inside of the respective side walls of conductive magnetic yoke side wall breach
Outside line, for increasing air current flow amount to a certain extent, ensure air pressure equalisation in acoustical generator.With this set, can keep away
Exempt from because the vibration performance of the widths affect vibrating diaphragm of block piece.The lateral surface of the occlusion part of block piece second is preferably placed to form shell
In the outside line of pressure release passage breach, to avoid increasing the external dimensions of acoustical generator because of the setting of block piece.Thus set
Block piece, do not influence operatic tunes air pressure balance effect after acoustical generator, while can effectively reduce and draw because pressure release passage opening is excessive
The noise entered.The end face of second occlusion part preferably has area as big as possible, and the shielded area of sound passage is let out with increase.According to
The utility model, the block piece and conductive magnetic yoke bottom wall and side wall can be integrally formed, not increase conductive magnetic yoke preparation technology's
In the case of the breach in conductive magnetic yoke corner is effectively blocked, reduce the noise of acoustical generator, improve acoustical generator tonequality and to go out sound good
Rate.
Brief description of the drawings
Specific embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is shown according to a kind of schematic diagram of acoustical generator embodiment one of the utility model；
Fig. 2 shows to be provided with the schematic diagram of the conductive magnetic yoke of block piece according to a kind of acoustical generator embodiment one of the utility model；
Reference：
1st, shell, 2, conductive magnetic yoke, 21, bottom wall, 22, side wall, 3, pressure release passage, 4, block piece, the 41, first occlusion part, 42,
Second occlusion part.
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 should not limit the scope of protection of the utility model with this.
Embodiment one
Fig. 1 and Fig. 2 shows to include shell 1 according to a kind of schematic diagram of acoustical generator embodiment one of the utility model, acoustical generator
With the vibrational system (not shown) and magnetic circuit system being contained in the shell 1, vibrational system includes voice coil loudspeaker voice coil and vibrating diaphragm, magnetic circuit system
System bag magnet (not shown) and conductive magnetic yoke 2.In the embodiment, conductive magnetic yoke 2 includes bottom wall 21 and prolonged along the edge-perpendicular of bottom wall 21
The side wall 22 stretched.Magnet is the centring magnet being arranged on the bottom wall 21, and the centring magnet forms with side wall 22 and accommodates voice coil loudspeaker voice coil
Gap.The pressure release passage that breach forms operatic tunes air pressure after balance acoustical generator is opened up on four corners of conductive magnetic yoke bottom wall and side wall
3.Conductive magnetic yoke integrally extends the block piece 4 of pressure release passage 3 described in partial occlusion at corresponding pressure release passage 3.In the present embodiment,
Conductive magnetic yoke 2 is respectively formed the block piece 4 at four corner notches for forming pressure release passage 3, and 2 four corners of conductive magnetic yoke are lacked
Mouthful blocked, to reduce existing acoustical generator because pressure release passage 3 is open the noise of excessive introducing, improve the sound product of acoustical generator
Matter.
The block piece 4 of the present embodiment includes being used for the first occlusion part 41 for blocking the breach of 2 bottom wall of conductive magnetic yoke 21 and from first
Second occlusion part 42 of the occlusion part 41 towards the top bending of 2 side wall of conductive magnetic yoke 22.The part edge and bottom wall of first occlusion part 41
The edge integrally connected of 21 corner notches, the breach of 2 bottom wall of conductive magnetic yoke 21 is blocked, equivalent to compensate for the bottom wall of conductive magnetic yoke 2
The missing in 21 corners, reduce the size of the breach of 2 bottom wall of conductive magnetic yoke 21.The shape and profile of first occlusion part 41 do not surpass preferably
The outer surface of bottom wall is crossed, on the one hand the breach of 2 bottom wall of conductive magnetic yoke 21 can be blocked to greatest extent and on the other hand neither increased
The exterior space of acoustical generator is added also not reduce the inner space of conductive magnetic yoke.
The block piece 4 further comprises the second occlusion part 42 vertically bent relative to first occlusion part 41.Institute
The center that the second occlusion part 42 is located at pressure release passage 3 is stated, retains certain interval with the conductive magnetic yoke side wall of the both sides of pressure release passage 3, will
Pressure release passage 3 divides for two parts, acoustical generator outer gas stream is uniformly flowed into from both sides, avoids vibrating diaphragm from polarizing.Described second
The end face of occlusion part 42 towards centring magnet is arranged on the side wall 22 towards the end face of centring magnet outside the line of indentation, there,
To ensure the airflow amount in gap.As illustrated, acoustical generator shell further comprises the fixed part for fixing conductive magnetic yoke,
Shell fixed part opens up breach in the position of corresponding magnetic circuit system pressure release passage 3, forms a part for acoustical generator pressure release passage 3.
The end face of second occlusion part 42 away from centring magnet is arranged on the outside of shell fixed part on the inside of the line of indentation, there.With this
Kind is set, and increases the external dimensions that the block piece of pressure release passage 3 will not be increased by acoustical generator in acoustical generator.
In the present embodiment, the highly preferred and pressure release passage 3 of the second occlusion part 42 it is highly consistent, to reach optimal
Occlusion effect.The present embodiment sets block piece 4 by the indentation, there in 2 four corners of conductive magnetic yoke, reduces 2 jiaos of the conductive magnetic yoke
Breach size in portion so that the area in acoustical generator pressure release passage exit diminishes, so as to efficiently reduce pressure release passage to shaking
The influence of dynamic system, reduces noise, improves tonequality, and the structure of block piece 4 is simple, is easy to realize on acoustical generator and blocks work(
Can, there is very strong practicality.
In the present embodiment, in order to simplify technique, the block piece 4 can be molded with the integrated punching of conductive magnetic yoke 2.Preparing magnetic conduction
During yoke base material, shield portions can be advanced on the sheet material for making conductive magnetic yoke 2, obtain including being used to form bottom wall, side
The tabular section bar of the bottom wall portion of wall and block piece, sidewall sections and shield portions, it is being stamped and formed out the forming process of conductive magnetic yoke
In simultaneously the integrally-formed conductive magnetic yoke for including bottom wall, side wall and block piece.
The present embodiment also includes a kind of acoustical generator module, and the acoustical generator module includes module shell and is installed on the mould
Acoustical generator as described in the embodiment in assembly housing.Other technologies are prior art in the present embodiment, be will not be repeated here.
Embodiment two
In the present embodiment, the conductive magnetic yoke includes the bottom wall of horizontal direction, and four corners of bottom wall are formed with for forming
The breach of pressure release passage.Magnet (not shown) includes the centring magnet being arranged on bottom wall and positioned at the centring magnet surrounding
Four side magnet.The centring magnet and four side magnet form the magnetic gap for placing voice coil loudspeaker voice coil.Four side magnet are between any two
The breach in four corners in gap and conductive magnetic yoke bottom wall forms four pressure release passages, to balance the air pressure in acoustical generator.This implementation
The pressure release passage formed in example by conductive magnetic yoke bottom wall breach and side magnet slot corresponds in embodiment one by bottom wall breach and side
The pressure release passage that wall breach is formed.It is used in the present embodiment by being provided in pressure release passage by what conductive magnetic yoke bottom wall integrally extended
The block piece of partial occlusion pressure release passage, can be reduced while diaphragm oscillations are ensured acoustical generator introduced via pressure release passage it is miscellaneous
Sound, improve the tonequality of acoustical generator and go out sound yield.The setting of block piece is similar with embodiment one in the present embodiment, herein no longer
Repeat.
Obviously, above-described embodiment of the present utility model is only intended to clearly illustrate the utility model example, and
It is not the restriction to embodiment of the present utility model, for those of ordinary skill in the field, in described above
On the basis of can also make other changes in different forms, all embodiments can not be exhaustive here,
It is every to belong to obvious changes or variations that the technical solution of the utility model is extended out still in of the present utility model
The row of protection domain.
Claims (10)
1. a kind of acoustical generator, including shell and the vibrational system and magnetic circuit system that are contained in the shell, the vibrational system
Including vibrating diaphragm and voice coil loudspeaker voice coil, the magnetic circuit system includes magnet and conductive magnetic yoke, and the corner of magnetic circuit system is communicated with acoustical generator
Portion and outside pressure release passage, it is characterised in that
The conductive magnetic yoke is provided with the position corresponding with pressure release passage is used for partial occlusion institute by what conductive magnetic yoke was integrally extended
State the block piece of pressure release passage.
2. acoustical generator according to claim 1, it is characterised in that the conductive magnetic yoke includes the bottom wall of horizontal direction, in institute
State bottom wall and be provided with centring magnet and four side magnet, the gap for accommodating voice coil loudspeaker voice coil is formed between the centring magnet and side magnet,
The breach in four corners in gap and bottom wall between the four side magnet forms the pressure release passage.
3. acoustical generator according to claim 2, it is characterised in that the block piece include horizontal direction be used for block institute
State the first occlusion part of conductive magnetic yoke bottom wall breach and be directed away from the second of the bending of bottom wall direction from first occlusion part and block
Portion.
4. acoustical generator according to claim 3, it is characterised in that
The medial surface of the occlusion part of block piece second is located on the inside of the corresponding edge magnet for forming gap outside line.
5. acoustical generator according to claim 1, it is characterised in that the bottom wall of the conductive magnetic yoke including the horizontal direction and bottom of along
The side wall of wall edge-perpendicular extension, the bottom wall are provided with centring magnet, are formed and held between the centring magnet and the side wall
Receive the gap of voice coil loudspeaker voice coil, open up breach on four corners of the conductive magnetic yoke and side wall and form the pressure release passage.
6. acoustical generator according to claim 5, it is characterised in that the block piece include horizontal direction be used for block institute
State the first occlusion part of conductive magnetic yoke bottom wall breach and be directed away from the second of the bending of bottom wall direction from first occlusion part and block
Portion.
7. acoustical generator according to claim 6, it is characterised in that
The medial surface of the occlusion part of block piece second is located on the inside of the respective side walls for forming conductive magnetic yoke side wall breach outside line.
8. acoustical generator according to claim 1, it is characterised in that the block piece is located at the interposition of the pressure release passage
Put, the pressure release passage is divided into two parts.
9. acoustical generator according to claim 1, it is characterised in that the block piece is molded with conductive magnetic yoke integrated punching.
A kind of 10. acoustical generator module, it is characterised in that including module shell and be fixed in the module shell as right will
Seek the acoustical generator described in 1-9 any claims.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720458906.7U CN206674194U (en) | 2017-04-27 | 2017-04-27 | Acoustical generator and the acoustical generator module including the acoustical generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720458906.7U CN206674194U (en) | 2017-04-27 | 2017-04-27 | Acoustical generator and the acoustical generator module including the acoustical generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206674194U true CN206674194U (en) | 2017-11-24 |
Family
ID=60371080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720458906.7U Active CN206674194U (en) | 2017-04-27 | 2017-04-27 | Acoustical generator and the acoustical generator module including the acoustical generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206674194U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108289269A (en) * | 2018-01-04 | 2018-07-17 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| CN110831383A (en) * | 2018-08-07 | 2020-02-21 | 鸿富锦精密电子（重庆）有限公司 | Electronic device |
-
2017
- 2017-04-27 CN CN201720458906.7U patent/CN206674194U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108289269A (en) * | 2018-01-04 | 2018-07-17 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| CN108289269B (en) * | 2018-01-04 | 2019-08-02 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| CN110831383A (en) * | 2018-08-07 | 2020-02-21 | 鸿富锦精密电子（重庆）有限公司 | Electronic device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103118320B (en) | A kind of ultrathin loudspeaker module | |
| CN211321501U (en) | Loudspeaker box | |
| US10277986B2 (en) | Miniature speaker includes a flexible circuit board located below a diaphragm | |
| EP3352472B1 (en) | Receiver | |
| CN103747398B (en) | Loudspeaker module and electronic device comprising the loudspeaker module | |
| KR101807276B1 (en) | Sound producing device | |
| CN202799128U (en) | Speaker | |
| CN204598310U (en) | Loud speaker module | |
| US10757493B2 (en) | Speaker module | |
| WO2016086756A1 (en) | Miniature loudspeaker | |
| CN106454654B (en) | Single loudspeaker shell, single loudspeaker module and electronic equipment | |
| CN104883648B (en) | Vibrating speaker | |
| WO2006090558A1 (en) | Speaker device | |
| CN207460510U (en) | A kind of loud speaker module | |
| CN110198510B (en) | Sound generator | |
| CN203851284U (en) | Loudspeaker module group and electronic device comprising same | |
| WO2019000539A1 (en) | Loudspeaker module and electronic device | |
| KR20140116947A (en) | Sounder module and assembly method thereof | |
| CN206674194U (en) | Acoustical generator and the acoustical generator module including the acoustical generator | |
| CN203708469U (en) | Loudspeaker module | |
| CN213906846U (en) | Loudspeaker box | |
| CN203446021U (en) | Loudspeaker module | |
| CN203086730U (en) | Ultra-thin loudspeaker module group | |
| CN201878319U (en) | Movable ring type electro-acoustic converter | |
| CN205596325U (en) | Electroacoustic transducer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |