CN208908493U - Loudspeaker - Google Patents
Loudspeaker Download PDFInfo
- Publication number
- CN208908493U CN208908493U CN201821263107.5U CN201821263107U CN208908493U CN 208908493 U CN208908493 U CN 208908493U CN 201821263107 U CN201821263107 U CN 201821263107U CN 208908493 U CN208908493 U CN 208908493U
- Authority
- CN
- China
- Prior art keywords
- voice coil
- groove
- top dome
- vibrating diaphragm
- fixedly connected
- 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.)
- Expired - Fee Related
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- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model provides a kind of loudspeaker, it includes shell and is contained in the intracorporal vibrational system of the shell and magnetic circuit system, the vibrational system includes the vibrating diaphragm being fixedly connected with the shell, the voice coil of the driving diaphragm oscillations and the top dome for being located between the vibrating diaphragm and the voice coil and being fixedly connected with the vibrating diaphragm and the voice coil, the top dome is equipped with from its table close to the voice coil to be recessed the groove to be formed away from the voice coil direction, and the voice coil is contained in the groove close to one end of the top dome and is fixedly connected with the groove.Oscillation space is big under loudspeaker provided by the utility model and top dome connects reliably with voice coil.
Description
[technical field]
The utility model relates to electroacoustic conversion art more particularly to a kind of loudspeakers for applying to portable electronic product.
[background technique]
With the arrival of mobile internet era, the quantity of Intelligent mobile equipment constantly rises.And in numerous mobile devices
Among, mobile phone is undoubtedly most common, most portable mobile terminal device.As the functional requirement of mobile phone is more and more, in
Component integration degree is higher and higher, is but easy to influence the reliability of product.
The loudspeaker of the relevant technologies includes shell, the magnetic circuit system and vibrational system for being fixed on shell, and magnetic circuit system is used
In generating magnetic field, vibrational system is driven to create vibration in magnetic field, to make a sound.Wherein, vibrational system include with
It vibrating diaphragm that shell is fixedly connected, the voice coil for driving diaphragm oscillations and is located between vibrating diaphragm and voice coil and is fixed with vibrating diaphragm and voice coil
The top dome of connection.Specifically, top dome is the unified flake structure of thickness, and voice coil is pasted onto lower surface of the top dome far from vibrating diaphragm,
There are following two defects for the structure: 1) top dome thicker for thickness (such as aluminium foil top dome), this structure can reduce vibration
The lower oscillation space of system；2) voice coil and the cemented surface of top dome are planar structure, there are the risk of glue from overflowing, especially for
The structure that voice coil and top dome outside dimension are not much different, glue is easily outer to be spilt on vibrating diaphragm, to seriously affect the performance of product.
Therefore, it is really necessary to provide a kind of improved loudspeaker to solve the above technical problems.
[utility model content]
The purpose of this utility model is to provide a kind of lower oscillation space, big and top dome connects reliable loudspeaker with voice coil.
In order to achieve the above object, the utility model provides a kind of loudspeaker comprising shell and is contained in described
The intracorporal vibrational system of shell and magnetic circuit system, the vibrational system include the vibrating diaphragm being fixedly connected with the shell, described in driving
It the voice coil of diaphragm oscillations and is located between the vibrating diaphragm and the voice coil and is fixedly connected with the vibrating diaphragm and the voice coil
Top dome, the top dome is equipped with from its table close to the voice coil to be recessed the groove to be formed away from the voice coil direction, described
Voice coil is contained in the groove close to one end of the top dome and is fixedly connected with the groove.
Preferably, the voice coil is connect with the groove gluing.
Preferably, the shape of the groove and the shape of the voice coil match.
Preferably, the shell includes frame and lid is connected to the front cover of the frame, and the groove includes slot bottom and from institute
Slot bottom is stated to the cell wall extended far from the vibrating diaphragm direction, the voice coil include towards the frame outer surface, with it is described outer
The end face of inner surface and the connection inner surface and the outer surface that surface is oppositely arranged, the end of the slot bottom and the voice coil
Face connection, the cell wall and the inner surface of the voice coil and/or the outer surface have gap and are connected by glue.
Preferably, the cell wall and the inner surface and the outer surface all have the gap.
Preferably, along the direction of vibration of the vibrational system, the depth of the groove is less than the thickness of the top dome.
Preferably, the vibrating diaphragm includes centrally located main part, around the ring portion of the main part and from institute
The fixed part that the outer peripheral edge in ring portion extends is stated, the top dome is fixedly connected with the main part close to the surface of the voice coil,
The fixed part is fixedly connected with the shell.
Compared with the relevant technologies, loudspeaker provided by the utility model, top dome be equipped with its close to the surface of the voice coil to
Be recessed the groove to be formed far from the voice coil direction, the voice coil be contained in the groove close to one end of the top dome and with
The groove is fixedly connected, on the one hand, in gluing connection, glue will not the excessive performance for influencing the vibrating diaphragm, and by setting
It sets groove and increases glue area, that is, increase cementing strength, improve reliability；On the other hand, so that voice coil is close to described
The height of the surface mount position of top dome becomes top dome middle position from the bottom of top dome, increases the lower vibration of vibrational system
Space.
[Detailed description of the invention]
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings, in which:
Fig. 1 is the three-dimensional assembling schematic diagram of one preferred embodiment of loudspeaker provided by the utility model；
Fig. 2 is the perspective exploded view of loudspeaker shown in Fig. 1；
Fig. 3 is cross-sectional view of the loudspeaker shown in Fig. 1 along line A-A；
Fig. 4 is the enlarged drawing of part B shown in Fig. 3；
Fig. 5 is the structural schematic diagram of one angle of top dome in loudspeaker shown in Fig. 1.
[specific embodiment]
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
All other embodiment obtained, fall within the protection scope of the utility model.
It please refers to Fig.1 to Fig.3, the utility model provides a kind of loudspeaker 100, and the loudspeaker 100 includes shell
10, the vibrational system 30 and magnetic circuit system 50 being contained in the shell 10, the magnetic circuit system 50 drive the vibrational system
30 sounding.
The shell 10 includes the front cover 13 that frame 11 and lid are connected to the frame 11, the vibrational system 30 and the magnetic
Road system 50 is contained in the frame 11.
The vibrational system 30 includes the vibrating diaphragm 31 being fixedly arranged between the frame 11 and the front cover 13, positioned at described
The voice coil 33 that drives the vibrating diaphragm 31 to vibrate below vibrating diaphragm 31 and be located between the vibrating diaphragm 31 and the voice coil 33 and with vibration
The top dome 35 that film 31 is fixedly connected with the voice coil 33.
The vibrating diaphragm 31 include centrally located main part 311, around the main part 311 ring portion 313 and
The fixed part 315 extended from the outer peripheral edge in the ring portion 313, the fixed part 315 are fixedly connected with the frame 11.
Described 33 one end of voice coil is fixedly connected with the top dome 35, and the other end is inserted into the magnetic gap 50A of magnetic circuit system 50
It is interior.The voice coil 33 includes the inner surface 333 being oppositely arranged towards the outer surface 331 of the frame 11 and the outer surface 331
And the end face 335 of the connection inner surface 333 and the outer surface 331, the end face 335 be fixedly connected with the top dome 35 with
The voice coil 33 is fixed on the top dome 35.
Preferably, the voice coil 33 is round mount structure or rectangular frame structure, and in the present embodiment, the voice coil 33 is square
Shape mount structure.
The top dome 35 is fixedly connected with the main part 311 close to the surface of the voice coil 33.In the present embodiment, institute
The shape for stating top dome 35 is identical as the shape of the main part 311.
Please refer to Fig. 4 and Fig. 5, the top dome 35 be equipped with from its close to the voice coil 33 table away from the sound
33 directions are enclosed to be recessed the groove 351 to be formed, the voice coil 33 be contained in the groove 351 close to one end of the top dome 35 and
It is fixedly connected with the groove 351, specifically, the voice coil 33 is connect with 351 gluing of groove, that is, is passed through glue and connected.
By the way that the groove 351 is arranged, and one end that the voice coil 33 is connect with the top dome 35 is contained in the groove 351,
On the one hand, when gluing connects, glue will not the excessive performance for influencing the vibrating diaphragm 31, and increased by the way that groove 351 is arranged
Glue area increases cementing strength, improve reliability；On the other hand, so that voice coil 33 close to the top dome 35 table
The height of face paste position becomes 35 middle position of top dome from the bottom of top dome 35, increases the lower vibration of vibrational system 30
Space.
Further, the shape of the groove 351 and the shape of the voice coil 33 match.In the present embodiment, described
Groove 351 is rectangular ring structure.The shape of the groove 351 and the shape of voice coil 33 match, in assembly, positioning
It is convenient, avoid assembling from misplacing.
Further, the groove 351 is including slot bottom 3511 and from the slot bottom 3511 to far from 31 side of vibrating diaphragm
To the cell wall 3513 of extension.The connection of the end face 335 of the slot bottom 3511 and the voice coil 33, the cell wall 3513 and the sound
The inner surface 333 of circle 33 and/or the outer surface 331 have gap 351A and are connected by glue.The interior table of the voice coil 33
Face 333 and/or the outer surface 331 have gap, i.e., in design, the size of the groove 351 is slightly larger than the voice coil 33
Size close to described 35 one end of top dome can prevent glue from overflowing or accommodate more glue in gluing connection.
Preferably, the cell wall 3513 all has the gap 351A with the inner surface 333 and the outer surface 331.
In the present embodiment, the width of the gap 351A is 0.02mm, the i.e. length direction along the loudspeaker 100, the cell wall
The distance between 3513 and the outer surface 331 are 0.02mm, and the distance between the cell wall 3513 and the inner surface 333 are
0.02mm。
Preferably, along the direction of vibration of the vibrational system 30, the depth of the groove 351 is less than the top dome 335
Thickness.Specifically, the depth of the groove 351, can according to the demand of the lower oscillation space of 335 thickness of top dome and vibrational system 30 into
Row setting, bondline thickness and the considerations of adhesion strength when for gluing, depth of groove should be not less than 0.02mm.
In the present embodiment, the recess direction of the groove 351 and the protrusion direction in the ring portion 333 are on the contrary, specific
Ground, in the visual angle of Fig. 3, the recess direction of the groove 351 is upward, and the protrusion direction in the ring portion 333 is downward.At other
In embodiment, the protrusion direction in ring portion can also be upward.
The magnetic circuit system 50 include magnetic bowl 51, set on 51 center of the magnetic bowl magnet steel 53 and be attached at the magnet steel 53
On pole piece 55, the magnetic bowl 51 and the magnet steel 53 interval setting form magnetic gap 50A.
Compared with the relevant technologies, loudspeaker provided by the utility model, top dome be equipped with its close to the surface of the voice coil to
Be recessed the groove to be formed far from the voice coil direction, the voice coil be contained in the groove close to one end of the top dome and with
The groove is fixedly connected, on the one hand, in gluing connection, glue will not the excessive performance for influencing the vibrating diaphragm, and by setting
It sets groove and increases glue area, that is, increase cementing strength, improve reliability；On the other hand, so that voice coil is close to described
The height of the surface mount position of top dome becomes top dome middle position from the bottom of top dome, increases the lower vibration of vibrational system
Space.
Above-described is only the embodiments of the present invention, it should be noted here that for the ordinary skill of this field
For personnel, without departing from the concept of the present invention, improvement can also be made, but these belong to it is practical
Novel protection scope.
Claims (7)
1. a kind of loudspeaker comprising shell and be contained in the intracorporal vibrational system of the shell and magnetic circuit system, the vibration
System includes the vibrating diaphragm being fixedly connected with the shell, the voice coil of the driving diaphragm oscillations and is located in the vibrating diaphragm and described
The top dome being fixedly connected between voice coil and with the vibrating diaphragm and the voice coil, which is characterized in that the top dome is equipped with close from its
The table of the voice coil is recessed the groove to be formed away from the voice coil direction, and the voice coil is accommodated close to one end of the top dome
It is fixedly connected in the groove and with the groove.
2. loudspeaker according to claim 1, which is characterized in that the voice coil is connect with the groove gluing.
3. loudspeaker according to claim 1, which is characterized in that the shape phase of the shape of the groove and the voice coil
Match.
4. loudspeaker according to claim 3, which is characterized in that the shell includes that frame and lid are connected to the frame
Front cover, the groove include slot bottom and from the slot bottom to far from the vibrating diaphragm direction extend cell wall, the voice coil includes court
The inner surface that is oppositely arranged to the outer surface of the frame, with the outer surface and it connect the inner surface and the outer surface
End face, the slot bottom are connected with the end face of the voice coil, the inner surface and/or the appearance mask of the cell wall and the voice coil
There is gap and is connected by glue.
5. loudspeaker according to claim 4, which is characterized in that the cell wall and the inner surface and the outer surface are equal
With the gap.
6. loudspeaker according to claim 4, which is characterized in that along the direction of vibration of the vibrational system, the groove
Depth be less than the top dome thickness.
7. loudspeaker according to any one of claims 1 to 6, which is characterized in that the vibrating diaphragm includes centrally located
Main part, the ring portion around the main part and the fixed part that extends from the outer peripheral edge in the ring portion, the top dome with
The main part is fixedly connected close to the surface of the voice coil, and the fixed part is fixedly connected with the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821263107.5U CN208908493U (en) | 2018-08-06 | 2018-08-06 | Loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821263107.5U CN208908493U (en) | 2018-08-06 | 2018-08-06 | Loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208908493U true CN208908493U (en) | 2019-05-28 |
Family
ID=66612885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821263107.5U Expired - Fee Related CN208908493U (en) | 2018-08-06 | 2018-08-06 | Loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208908493U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111954126A (en) * | 2020-06-30 | 2020-11-17 | 瑞声新能源发展(常州)有限公司科教城分公司 | Carbon fiber dome and loudspeaker |
-
2018
- 2018-08-06 CN CN201821263107.5U patent/CN208908493U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111954126A (en) * | 2020-06-30 | 2020-11-17 | 瑞声新能源发展(常州)有限公司科教城分公司 | Carbon fiber dome and loudspeaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190528 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |