CN216626047U - Miniature loudspeaker - Google Patents
Miniature loudspeaker Download PDFInfo
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- CN216626047U CN216626047U CN202122602584.8U CN202122602584U CN216626047U CN 216626047 U CN216626047 U CN 216626047U CN 202122602584 U CN202122602584 U CN 202122602584U CN 216626047 U CN216626047 U CN 216626047U
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- basin frame
- hem
- micro
- speaker
- frame
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Abstract
The utility model discloses a micro loudspeaker which comprises a magnetic cover and a ring-frame-shaped basin frame, wherein the magnetic cover comprises a bottom plate and a folded edge formed by bending a partial region of the bottom plate, the folded edge extends into a hollow region of the basin frame, an avoidance position is arranged on the basin frame and corresponds to the outer side of the top of the folded edge. The outside at the top of hem and/or the basin frame is equipped with the position of dodging corresponding to the outside position at the top of hem, has increased the outside at the top of hem and the clearance between the basin frame, and when basin frame atress inwards warp, the basin frame can not act on the top that the hem easily takes place to warp to improved the hem effectively and warp and influenced the phenomenon of voice coil loudspeaker voice coil work, does benefit to the job stabilization nature who guarantees micro-speaker.
Description
Technical Field
The utility model relates to the technical field of electroacoustic transducers, in particular to a miniature loudspeaker.
Background
In the existing micro loudspeaker, the basin frame and the magnetic circuit component are assembled and assembled, and are mostly positioned and matched together through the basin frame and the magnetic cover, and then glue is added for curing.
For further reducing the volume of miniature speaker, among the existing miniature speaker, its magnetic circuit subassembly includes magnetic shield, central magnet steel and central magnificent department, and the magnetic shield includes bottom plate and hem, and the hem is formed by the regional bending type of part of bottom plate, and on the magnetic shield was located to central magnet steel, central magnificent department located on the central magnet steel, central magnet steel was located between two hems of at least a set of relative setting, and the effect of hem is equal to limit magnet steel. In the experimental process is fallen in the reliability, the basin frame side can receive external force impact, and then on the hem of inward action magnetic shield, the hem is the region of keeping away from the bottom plate of magnetic shield more easily atress inwards warp to be close to or contact the lateral surface of voice coil loudspeaker voice coil, when leading to the voice coil loudspeaker voice coil vibration, can bump with the hem of deformation, produce the noise, when serious, take place the phenomenon of voice coil loudspeaker voice coil even, influence micro-speaker's life-span.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: a micro speaker having high operation stability is provided.
In order to solve the technical problems, the first technical scheme adopted by the utility model is as follows: the utility model provides a micro loudspeaker, includes the magnetism cover and is the basin frame of ring frame form, the magnetism cover include the bottom plate and by the hem that the subregion of bottom plate formed of buckling, the hem stretches into in the cavity region of basin frame, be equipped with on the basin frame and dodge the position, dodge the position corresponding to the outside setting at the top of hem.
Further, the avoiding position is of a chamfer structure.
Further, the avoidance position is of a long strip groove-shaped structure.
Further, the basin frame is provided with a step part corresponding to the folded edge, and the avoiding part is arranged on the step part.
Further, a gluing groove is formed between the bottom of the basin stand and the folded edge.
In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a micro loudspeaker, includes the magnetism cover and is the basin frame of ring frame form, the magnetism cover include the bottom plate and by the hem that the subregion of bottom plate formed of buckling, the hem stretches into in the cavity region of basin frame, the outside at the top of hem is equipped with dodges the position, dodge the position intercommunication two terminal surfaces of hem.
Further, the avoiding position is of a chamfer structure.
Further, the avoidance position is of a long strip groove-shaped structure.
Further, the tub stand has a stepped portion provided corresponding to the folded edge.
Further, a gluing groove is formed between the bottom of the basin stand and the folded edge.
The utility model has the beneficial effects that: the outside at the top of hem and/or the basin frame is equipped with the position of dodging corresponding to the outside position at the top of hem, has increased the outside at the top of hem and the clearance between the basin frame, and when basin frame atress inwards warp, the basin frame can not act on the top that the hem easily takes place to warp to improved the hem effectively and warp and influenced the phenomenon of voice coil loudspeaker voice coil work, does benefit to the job stabilization nature who guarantees micro-speaker.
Drawings
Fig. 1 is an exploded view of a micro-speaker according to a first embodiment of the present invention;
fig. 2 is a schematic internal structure diagram of a micro-speaker according to a first embodiment of the present invention;
fig. 3 is a partial sectional view of a micro-speaker according to a first embodiment of the present invention;
fig. 4 is a partial sectional view of a micro-speaker having another structure according to a first embodiment of the present invention;
fig. 5 is a partial sectional view of a micro-speaker according to a second embodiment of the present invention.
Description of reference numerals:
1. a basin stand; 11. a step portion;
2. vibrating diaphragm;
3. a voice coil;
4. middle pasting;
5. a magnetic shield;
51. a base plate;
52. folding edges;
6. central magnetic steel;
7. a central washer;
8. a magnetic gap;
9. gluing a groove;
10. and avoiding the position.
Detailed Description
In order to explain technical contents, achieved objects, and 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 magnetic shield 5 and a frame 1 in a ring frame shape, the magnetic shield 5 includes a bottom plate 51 and a folded edge 52 formed by bending a partial region of the bottom plate 51, the folded edge 52 extends into a hollow region of the frame 1, an avoiding position 10 is provided on the frame 1, and the avoiding position 10 corresponds to an outer side of a top of the folded edge 52.
From the above description, the beneficial effects of the present invention are: the outer side position that basin frame 1 corresponds to the top of hem 52 is equipped with and dodges position 10, has increased the clearance between the outside at the top of hem 52 and the basin frame 1, and when basin frame 1 atress inwards warp, basin frame 1 can not act on the top that hem 52 easily takes place to warp to improved hem 52 effectively and warp and influenced the phenomenon of 3 works of voice coil loudspeaker voice coil, do benefit to the job stabilization nature who guarantees micro-speaker.
Further, the avoiding position 10 is a chamfer structure.
Further, the avoiding position 10 is of a strip-groove-shaped structure.
From the above description, the specific structure of the avoiding position 10 is various, and those skilled in the art can set it as required, which is beneficial to enrich the diversity of the micro-speaker.
Further, the basin stand 1 has a step portion 11 corresponding to the folded edge 52, and the avoiding portion 10 is disposed on the step portion 11.
Further, a gluing groove 9 is formed between the bottom of the basin stand 1 and the folding edge 52.
As can be seen from the above description, the magnetic cover 5 is adhesively connected with the basin stand 1, and the connection mode of the magnetic cover and the basin stand is simple and reliable.
The utility model provides a micro loudspeaker, includes magnetic shield 5 and is the basin frame 1 of ring frame form, magnetic shield 5 include bottom plate 51 and by the hem 52 that the subregion of bottom plate 51 formed of buckling, hem 52 stretches into in the hollow region of basin frame 1, the outside at the top of hem 52 is equipped with dodges the position 10, dodge position 10 intercommunication two terminal surfaces of hem 52.
As can be seen from the above description, the beneficial effects of the present invention are: the outside at the top of hem 52 is equipped with dodges position 10, has increased the outside at the top of hem 52 and the clearance between the basin frame 1, and when basin frame 1 atress inwards warp, the power of basin frame 1 to hem 52 transmission can not act on the top that hem 52 easily takes place to warp to improved hem 52 effectively and warp and influenced the phenomenon of voice coil loudspeaker voice coil 3 work, do benefit to the job stabilization nature who guarantees micro-speaker.
Example one
Referring to fig. 1 to 4, a first embodiment of the present invention is: a micro speaker can be applied to electronic equipment such as mobile phones, notebook computers, hearing aids, intelligent watches, portable game machines and the like.
Referring to fig. 1 and 3, the micro-speaker includes a frame 1, and a vibration assembly and a magnetic circuit assembly respectively disposed on the frame 1, wherein the frame 1 is in a ring frame shape; the vibration component comprises a vibration diaphragm 2, a voice coil 3 and a middle paste 4, the middle paste 4 is arranged on the vibration diaphragm 2, the voice coil 3 is fixed on the vibration diaphragm 2 or the middle paste 4, and the vibration diaphragm 2 is fixed on the basin frame 1; the magnetic circuit assembly comprises a magnetic cover 5, central magnetic steel 6 and a central washer 7, wherein the magnetic cover 5 comprises a bottom plate 51 and a folded edge 52 formed by bending partial regions of the bottom plate 51, the folded edge 52 extends into the hollow region of the basin frame 1, the central magnetic steel 6 is arranged on the magnetic cover 5, the central washer 7 is arranged on the top surface of the central magnetic steel 6, the central magnetic steel 6 is positioned between at least one group of two folded edges 52 which are oppositely arranged, the central magnetic steel 6 and the folded edges 52 form a magnetic gap 8 for accommodating the voice coil 3, and a gluing groove 9 is formed between the bottom of the basin frame 1 and the folded edges 52.
Please refer to fig. 1 to 3, an avoiding position 10 is disposed on the frame 1, the avoiding position 10 is disposed at an outer side of the top of the folded edge 52, it is easy to understand that the avoiding position 10 is in a shape of a long strip, and the length of the avoiding position 10 is greater than or equal to the length of the folded edge 52.
Optionally, the avoiding portion 10 is a chamfer structure, the chamfer structure includes a fillet structure and a chamfer structure (as shown in fig. 3), and the angle of the chamfer includes, but is not limited to, an angle of 30 °, an angle of 45 °, and the like. It is of course also possible that the evasion site 10 is of a strip-and-groove configuration (as shown in fig. 4).
Referring to fig. 1 and 3, the frame 1 has a step 11 corresponding to the folded edge 52, and the avoiding portion 10 is disposed on the step 11. In this embodiment, since the height difference between the top surface of the stepped portion 11 and the top surface of the folded edge 52 is not large, even there is no height difference, the avoidance line 10 is located at the corner of the top of the stepped portion 11. In other embodiments, when the top surface of the step part 11 is far higher than the top surface of the folded edge 52, the avoiding part 10 is disposed on the inner sidewall of the step part 11.
As an expansion, when the avoidance position 10 is arranged on the basin frame 1, an avoidance structure can be arranged on the outer side of the top of the folded edge 52, so that the gap between the outer side of the top of the folded edge 52 and the basin frame 1 can be further enlarged.
Example two
Referring to fig. 5, a second embodiment of the present invention is: a micro speaker can be applied to electronic equipment such as mobile phones, notebook computers, hearing aids, intelligent watches, portable game machines and the like.
The micro loudspeaker comprises a basin frame 1, and a vibration assembly and a magnetic circuit assembly which are respectively arranged on the basin frame 1, wherein the basin frame 1 is in a ring frame shape; the vibration component comprises a vibrating diaphragm, a voice coil 3 and a middle paste, the middle paste is arranged on the vibrating diaphragm, the voice coil 3 is fixed on the vibrating diaphragm or the middle paste, and the vibrating diaphragm is fixed on the basin frame 1; the magnetic circuit assembly comprises a magnetic cover 5, a central magnetic steel 6 and a central washer 7, wherein the magnetic cover 5 comprises a bottom plate 51 and a folded edge 52 formed by bending partial region of the bottom plate 51, the folded edge 52 extends into the hollow region of the frame 1, the central magnetic steel 6 is arranged on the magnetic cover 5, the central washer 7 is arranged on the top surface of the central magnetic steel 6, the central magnetic steel 6 is positioned between at least one group of two folded edges 52 which are oppositely arranged, a magnetic gap 8 for accommodating the voice coil 3 is formed between the central magnetic steel 6 and the folded edge 52, and a gluing groove 9 is formed between the bottom of the frame 1 and the folded edge 52; an avoiding position 10 is arranged on the outer side of the top of the folding edge 52, and the avoiding position 10 is communicated with two end faces of the folding edge 52.
Optionally, the avoiding portion 10 is a chamfering structure, the chamfering structure includes a rounding structure and a chamfering structure, and the chamfering angle includes, but is not limited to, an angle of 30 °, an angle of 45 °, and the like. Of course, it is also possible that the evasion site 10 is of a strip-and-trough configuration.
The basin stand 1 is provided with a step part 11 corresponding to the folded edge 52, and optionally, the top surface of the folded edge 52 is flush with the top surface of the step part 11, or the top surface of the folded edge 52 is slightly higher/lower than the top surface of the step part 11.
In summary, according to the micro-speaker provided by the utility model, the avoidance positions are arranged at the outer sides of the tops of the folded edges and/or the outer sides of the basin frame corresponding to the tops of the folded edges, so that the gap between the outer sides of the tops of the folded edges and the basin frame is increased, when the basin frame is stressed to deform inwards, the force transmitted by the basin frame to the folded edges cannot act on the top of the folded edges, which is easy to deform, and therefore, the phenomenon that the folded edges deform to influence the work of a voice coil is effectively improved, and the working stability of the micro-speaker is favorably ensured.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (10)
1. The utility model provides a micro loudspeaker, includes the magnetism cover and is the basin frame of ring frame form, the magnetism cover include the bottom plate and by the hem that the subregion of bottom plate buckled and forms, the hem stretches into in the hollow area of basin frame, its characterized in that: the basin frame is provided with an avoiding position, and the avoiding position is arranged corresponding to the outer side of the top of the folded edge.
2. The micro-speaker of claim 1, wherein: the avoiding position is of a chamfer structure.
3. The micro-speaker of claim 1, wherein: the avoidance position is of a long strip groove-shaped structure.
4. The micro-speaker of claim 1, wherein: the basin frame is provided with a step part corresponding to the folded edge, and the avoiding part is arranged on the step part.
5. The micro-speaker of claim 1, wherein: and a gluing groove is formed between the bottom of the basin frame and the folded edge.
6. The utility model provides a micro loudspeaker, includes the magnetism cover and is the basin frame of ring frame form, the magnetism cover include the bottom plate and by the hem that the subregion of bottom plate buckled and forms, the hem stretches into in the hollow area of basin frame, its characterized in that: and avoidance positions are arranged on the outer sides of the tops of the folded edges and are communicated with the two end faces of the folded edges.
7. The micro-speaker of claim 6, wherein: the avoiding position is of a chamfer structure.
8. The micro-speaker of claim 6, wherein: the avoidance position is of a long strip groove-shaped structure.
9. The micro-speaker of claim 6, wherein: the frame has a step portion provided corresponding to the folded edge.
10. The micro-speaker of claim 6, wherein: and a gluing groove is formed between the bottom of the basin frame and the folded edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122602584.8U CN216626047U (en) | 2021-10-27 | 2021-10-27 | Miniature loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122602584.8U CN216626047U (en) | 2021-10-27 | 2021-10-27 | Miniature loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216626047U true CN216626047U (en) | 2022-05-27 |
Family
ID=81693308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122602584.8U Active CN216626047U (en) | 2021-10-27 | 2021-10-27 | Miniature loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216626047U (en) |
-
2021
- 2021-10-27 CN CN202122602584.8U patent/CN216626047U/en active Active
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