CN213462277U - Miniature loudspeaker - Google Patents
Miniature loudspeaker Download PDFInfo
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- CN213462277U CN213462277U CN202021962069.XU CN202021962069U CN213462277U CN 213462277 U CN213462277 U CN 213462277U CN 202021962069 U CN202021962069 U CN 202021962069U CN 213462277 U CN213462277 U CN 213462277U
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- micro
- speaker
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- glue
- voice coil
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- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model discloses a micro loudspeaker, including ball crown, vibrating diaphragm and skeleton, the ball crown with the skeleton is connected, the top surface of skeleton is connected the vibrating diaphragm, be equipped with the storage tank on the skeleton, the ball crown install in the storage tank, still be equipped with on the skeleton and overflow gluey groove, overflow gluey groove position in the inboard of storage tank. The frame is provided with a containing groove for containing the ball top, and the inner side of the containing groove is provided with the glue overflowing groove, so that the overall height of the middle area of the micro-speaker is reduced, the micro-speaker is more miniaturized, more space is reserved for the arrangement of other parts of a microelectronic product, more importantly, the glue overflowing groove can contain the glue overflowing from the containing groove, the bonding force between the frame and the ball top is favorably further improved, the structure of the micro-speaker is more stable and reliable, and the service life of the micro-speaker is prolonged; this micro loudspeaker novel structure, user experience is good.
Description
Technical Field
The utility model relates to an electroacoustic transducer technical field especially relates to a miniature speaker.
Background
As a device capable of converting electric energy into acoustic energy, a micro speaker is widely used in microelectronic devices such as smart phones, camcorders, cameras, and notebook computers. The micro-speaker generally includes a magnetic circuit system, a vibration system and a support system, wherein the vibration system generally includes a diaphragm, a dome, a voice coil and a frame. The skeleton is mainly used for adjusting the position of the voice coil in the magnetic gap, so that the idle loss caused by the traditional structure is reduced, the flatness degree of a BL curve of the loudspeaker can be improved, the vibration symmetry of a vibration system can be improved, the harmonic distortion is reduced, and the overall performance of the miniature loudspeaker can be effectively improved.
The existing framework is designed into a metal support, the framework is located between the voice coil and the vibrating diaphragm system and is bonded and fixed with the voice coil and the vibrating diaphragm system through glue respectively, and poor bonding between the framework and the voice coil or the vibrating diaphragm system is caused in reliability tests of high power and the like of the micro-speaker due to instability of a gluing process, so that cracking or dropping and other phenomena are caused, and the service life of the micro-speaker is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: a micro speaker having a stable structure is provided.
In order to solve the technical problem, the utility model discloses a technical scheme be: a micro loudspeaker comprises a ball top, a vibrating diaphragm and a framework, wherein the ball top is connected with the framework, the top surface of the framework is connected with the vibrating diaphragm, a containing groove is arranged on the framework, the ball top is installed in the containing groove, a glue overflow groove is further arranged on the framework, and the glue overflow groove is located on the inner side of the containing groove.
Furthermore, the vibrating diaphragm and the framework are of an integrated structure formed by injection molding.
Further, the material of vibrating diaphragm is silica gel, rubber or TPE.
Further, the vibrating diaphragm includes interior fixed part, ring folding portion and the outer fixed part that links to each other in proper order from inside to outside, the bottom surface of interior fixed part with the top surface of skeleton links to each other, the top surface of interior fixed part and the top surface parallel and level of ball top.
Furthermore, the accommodating groove is communicated with the glue overflow groove.
Further, still be equipped with on the skeleton and keep away from the convex lug of direction of bulb top still includes the voice coil loudspeaker voice coil, the top surface of voice coil loudspeaker voice coil with the bottom surface bonding of lug.
Furthermore, the number of the lugs is multiple, and the lugs are annularly arranged.
Furthermore, a glue containing space is formed between every two adjacent convex blocks, a glue layer is filled in the glue containing space, and the glue layer is connected with the top surface of the voice coil.
Further, the bump is of a stamping structure.
Furthermore, the convex block is arranged at the glue overflow groove and is positioned at one side of the glue overflow groove far away from the containing groove.
The beneficial effects of the utility model reside in that: the frame is provided with a containing groove for containing the ball top, and the inner side of the containing groove is provided with the glue overflowing groove, so that the overall height of the middle area of the micro-speaker is reduced, the micro-speaker is more miniaturized, more space is reserved for the arrangement of other parts of a microelectronic product, more importantly, the glue overflowing groove can contain the glue overflowing from the containing groove, the bonding force between the frame and the ball top is favorably further improved, the structure of the micro-speaker is more stable and reliable, and the service life of the micro-speaker is prolonged; this micro loudspeaker novel structure, user experience is good.
Drawings
Fig. 1 is an exploded view of a micro-speaker according to a first embodiment of the present invention;
fig. 2 is a cross-sectional view of a micro-speaker according to a first embodiment of the present invention;
fig. 3 is a schematic view of a partial structure of a micro-speaker according to a first embodiment of the present invention (after a diaphragm and a dome are hidden);
fig. 4 is a schematic view of a partial structure of a micro-speaker according to a first embodiment of the present invention (after hiding a frame, a magnetic circuit assembly and a supporting assembly);
fig. 5 is a schematic structural diagram of a framework in a micro-speaker according to a first embodiment of the present invention.
Description of reference numerals:
1. a basin stand;
2. a magnetic circuit assembly;
3. a support assembly;
4. a voice coil;
5. vibrating diaphragm; 51. an inner fixing portion; 52. a folded ring part; 53. an outer fixing portion;
6. a ball top;
7. a framework; 71. a containing groove; 72. a glue overflow groove; 73. a bump; 74. glue containing space;
8. and (6) a glue layer.
Detailed Description
In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1 to 5, a micro speaker includes a dome 6, a diaphragm 5 and a frame 7, the dome 6 is connected to the frame 7, a top surface of the frame 7 is connected to the diaphragm 5, the frame 7 is provided with a receiving groove 71, the dome 6 is mounted in the receiving groove 71, the frame 7 is further provided with a glue overflow groove 72, and the glue overflow groove 72 is located inside the receiving groove 71.
From the above description, the beneficial effects of the present invention are: the framework 7 is provided with the containing groove 71 for containing the dome 6, the inner side of the containing groove 71 is provided with the glue overflowing groove 72, the overall height of the middle area of the micro-speaker is reduced, the micro-speaker is more miniaturized, more space is reserved for the arrangement of other parts of a microelectronic product, more importantly, the glue overflowing groove 72 can contain the glue overflowing from the containing groove 71, the bonding force between the framework 7 and the dome 6 is favorably further improved, the structure of the micro-speaker is more stable and reliable, and the service life of the micro-speaker is prolonged; this micro loudspeaker novel structure, user experience is good.
Further, the vibrating diaphragm 5 and the framework 7 are of an injection molding integrated structure.
As can be seen from the above description, the diaphragm 5 is stably and reliably connected with the framework 7, so that the assembly process of the micro-speaker is simplified, the manufacturing is convenient, and the structural stability and the production efficiency of the micro-speaker are improved.
Further, the vibrating diaphragm 5 is made of silica gel, rubber or TPE.
As can be seen from the above description, the vibrating diaphragm 5 is made of various materials, which is beneficial to enriching the diversity of the micro-speaker.
Further, the vibrating diaphragm 5 comprises an inner fixing portion 51, a corrugated portion 52 and an outer fixing portion 53 which are sequentially connected from inside to outside, the bottom surface of the inner fixing portion 51 is connected with the top surface of the framework 7, and the top surface of the inner fixing portion 51 is flush with the top surface of the dome 6.
As can be seen from the above description, the overall height of the middle region of the micro-speaker is small, which facilitates miniaturization of the micro-speaker.
Further, the accommodating groove 71 is communicated with the glue overflow groove 72.
As is apparent from the above description, the overflowing glue from the accommodating groove 71 can smoothly enter the glue overflowing groove 72.
Further, still be equipped with on the skeleton 7 towards keeping away from the protruding lug 73 of direction of bulb top 6 still includes voice coil 4, the top surface of voice coil 4 with the bottom surface bonding of lug 73.
As can be seen from the above description, the position of the voice coil 4 in the magnetic gap can be adjusted by adjusting the height of the bump 73, thereby improving the acoustic performance of the micro-speaker.
Further, the number of the bumps 73 is plural, and the plural bumps 73 are annularly arranged.
As can be seen from the above description, the arrangement of the plurality of projections 73 is adapted to the shape of the voice coil 4, so that each region of the voice coil 4 can be stably supported.
Further, a glue containing space 74 is formed between two adjacent bumps 73, a glue layer 8 is filled in the glue containing space 74, and the glue layer 8 is connected with the top surface of the voice coil 4.
As can be seen from the above description, the adhesive layer 8 can further improve the stability of the connection between the bobbin 7 and the voice coil 4, thereby improving the structural stability of the micro-speaker.
Further, the bump 73 is of a stamped structure.
Further, the protrusion 73 is disposed at the glue overflow groove 72 and is located at a side of the glue overflow groove 72 away from the accommodating groove 71.
As can be seen from the above description, the bump 73 is easy to form, easy to process, and facilitates the control of the manufacturing cost of the micro-speaker.
Example one
Referring to fig. 1 to 5, a first embodiment of the present invention is: as shown in fig. 1 and 2, a micro-speaker includes a frame 1, a magnetic circuit assembly 2, a support assembly 3, a voice coil 4, a diaphragm 5, a dome 6 and a frame 7, the magnetic circuit assembly 2 is disposed on the frame 1, the voice coil 4 is movably disposed in the frame 1 and the bottom of the frame is located in a magnetic gap formed by the magnetic circuit assembly 2, the support assembly 3 is connected to the frame 1 and the frame 7, the support assembly 3 includes an auxiliary membrane and/or a centering support piece, the frame 7 is respectively connected to the dome 6 and the voice coil 4, the diaphragm 5 is connected to the frame 1 and the frame 7.
Referring to fig. 1 to 3, specifically, the frame 7 is respectively bonded to the diaphragm 5, the dome 6 and the voice coil 4, the top surface of the frame 7 is connected to the diaphragm 5, the frame 7 is provided with an accommodating groove 71, the dome 6 is mounted in the accommodating groove 71, the frame 7 is further provided with an adhesive overflow groove 72, and the adhesive overflow groove 72 is located inside the accommodating groove 71. In this embodiment, the accommodating groove 71 is communicated with the glue overflow groove 72, that is, the glue overflow groove 72 and the accommodating groove 71 form a step-shaped structure.
For convenient production, improve the stability that vibrating diaphragm 5 and skeleton 7 are connected simultaneously, vibrating diaphragm 5 with skeleton 7 is injection moulding's integral type structure, the material of vibrating diaphragm 5 is silica gel, rubber, TPE etc. preferably the material of vibrating diaphragm 5 is silica gel.
Referring to fig. 1 and fig. 2, the diaphragm 5 includes an inner fixing portion 51, a corrugated portion 52, and an outer fixing portion 53, which are connected in sequence from inside to outside, a bottom surface of the inner fixing portion 51 is connected to a top surface of the framework 7, and as a preferred embodiment, a top surface of the inner fixing portion 51 is flush with a top surface of the dome 6.
With reference to fig. 1 to 5, further, a protrusion 73 protruding in a direction away from the dome 6 is further disposed on the framework 7, and a top surface of the voice coil 4 is bonded to a bottom surface of the protrusion 73. In detail, the number of the bumps 73 is multiple, the bumps 73 are annularly arranged, and the ring formed by the bumps 73 is adapted to the profile of the voice coil 4.
Referring to fig. 1, fig. 3 and fig. 5, a glue containing space 74 is formed between two adjacent bumps 73, a glue layer 8 is filled in the glue containing space 74, and the glue layer 8 is connected to the top surface of the voice coil 4.
As shown in fig. 1 and 5, for the convenience of processing, the protrusion 73 is of a stamping structure, and the position of the voice coil 4 in the magnetic gap can be adjusted by adjusting the stamping depth of the protrusion 73, so that the adjustment operation is very simple.
In order to reduce the processing difficulty, reduce the production consumables and ensure the vibration space of the voice coil 4, the protrusion 73 is disposed at the glue overflow groove 72 and is located on a side of the glue overflow groove 72 away from the accommodating groove 71.
To sum up, the utility model provides a micro loudspeaker, small in size, novel structure, be convenient for production and processing, structural stability are good, long service life, user experience are good.
The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.
Claims (10)
1. The utility model provides a micro loudspeaker, includes dome, vibrating diaphragm and skeleton, the dome with the skeleton is connected its characterized in that: the top surface of the framework is connected with the vibrating diaphragm, the framework is provided with a containing groove, the ball top is installed in the containing groove, the framework is further provided with a glue overflow groove, and the glue overflow groove is located on the inner side of the containing groove.
2. The micro-speaker of claim 1, wherein: the vibrating diaphragm and the framework are of an injection molding integrated structure.
3. The micro-speaker of claim 2, wherein: the material of vibrating diaphragm is silica gel, rubber or TPE.
4. The micro-speaker of claim 1, wherein: the vibrating diaphragm comprises an inner fixing part, a folded ring part and an outer fixing part which are sequentially connected from inside to outside, the bottom surface of the inner fixing part is connected with the top surface of the framework, and the top surface of the inner fixing part is flush with the top surface of the top of the ball.
5. The micro-speaker of claim 1, wherein: the containing groove is communicated with the glue overflowing groove.
6. The micro-speaker of claim 1, wherein: still be equipped with on the skeleton and keep away from the convex lug of direction of bulb top still includes the voice coil loudspeaker voice coil, the top surface of voice coil loudspeaker voice coil with the bottom surface bonding of lug.
7. The micro-speaker of claim 6, wherein: the number of the lugs is multiple, and the lugs are annularly arranged.
8. The micro-speaker of claim 7, wherein: and a glue containing space is formed between every two adjacent lugs, a glue layer is filled in the glue containing space, and the glue layer is connected with the top surface of the voice coil.
9. The micro-speaker of claim 6, wherein: the lug is of a stamping structure.
10. The micro-speaker of claim 6, wherein: the convex block is arranged at the glue overflow groove and is positioned at one side of the glue overflow groove far away from the containing groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021962069.XU CN213462277U (en) | 2020-09-09 | 2020-09-09 | Miniature loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021962069.XU CN213462277U (en) | 2020-09-09 | 2020-09-09 | Miniature loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213462277U true CN213462277U (en) | 2021-06-15 |
Family
ID=76322293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021962069.XU Active CN213462277U (en) | 2020-09-09 | 2020-09-09 | Miniature loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213462277U (en) |
-
2020
- 2020-09-09 CN CN202021962069.XU patent/CN213462277U/en active Active
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