CN218352720U - Sound production unit and sound production module - Google Patents
Sound production unit and sound production module Download PDFInfo
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- CN218352720U CN218352720U CN202221743238.XU CN202221743238U CN218352720U CN 218352720 U CN218352720 U CN 218352720U CN 202221743238 U CN202221743238 U CN 202221743238U CN 218352720 U CN218352720 U CN 218352720U
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- voice coil
- magnetic circuit
- circuit assembly
- generating unit
- convex hull
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Abstract
The utility model discloses a sound production unit and sound production module, sound production unit include the vibration subassembly, the vibration subassembly includes ball top, vibrating diaphragm and voice coil loudspeaker voice coil, the ball top is connected the vibrating diaphragm, the ball top has the court and keeps away from the convex first convex closure of voice coil loudspeaker voice coil direction, the voice coil loudspeaker voice coil with ball top adhesive connection, the ball top with the junction of voice coil loudspeaker voice coil is located in the first convex closure. The first convex hull on the dome can not only improve the structural strength of dome self, but also can play the effect of accommodating the glue solution between voice coil loudspeaker voice coil and the dome for magnetic circuit assembly need not to set up the structure of dodging (or reduced the volume of dodging the structure on the magnetic circuit assembly) that is used for dodging the gluey piece, has improved magnetic circuit assembly's volume effectively, and then reaches the effect that improves sound generating unit performance sensitivity. Meanwhile, the risk of collision between the rubber block and the magnetic circuit assembly is avoided, and the acoustic performance of the sound production unit is guaranteed.
Description
Technical Field
The utility model relates to an electroacoustic transducer technical field especially relates to sound production unit and sound production module.
Background
The sound production unit generally includes magnetic circuit component, vibration subassembly and supporting component, and wherein, vibration subassembly includes ball top, vibrating diaphragm and voice coil loudspeaker voice coil etc. and the voice coil loudspeaker voice coil is mostly directly bonded on the ball top through glue at present, for the fixed effect of assurance voice coil loudspeaker voice coil and ball top, in industry will let glue form the piece of gluing in the inboard and/or the outside of voice coil loudspeaker voice coil, glue the piece with the contact of ball top.
The rubber block can occupy a certain space, and when the sounding unit works with large amplitude, the rubber block easily collides with the magnetic circuit assembly, so that noise of the loudspeaker is generated. In the prior art, in order to solve the problem that the rubber block collides with the magnetic circuit component, structures such as a blank holder, a chamfer and the like are designed on the magnetic circuit component (a central washer, a flanging/annular washer of a magnetic cover) to avoid collision. However, the arrangement of the avoiding structure can cause the magnetic conduction effect of the magnetic circuit component in the magnetic gap to be reduced, thereby causing the performance sensitivity of the sound generating unit to be reduced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the utility model provides a sound production unit that sensitivity of performance is high and have this sound production unit's sound production module.
In order to solve the technical problem, the utility model discloses a technical scheme be: the sound production unit comprises a vibration assembly, the vibration assembly comprises a ball top, a vibration diaphragm and a voice coil, the ball top is connected with the vibration diaphragm, the ball top is provided with an orientation away from a convex first convex hull in the direction of the voice coil, the voice coil is connected with the ball top in an adhesive manner, and the joint of the ball top and the voice coil is located in the first convex hull.
Furthermore, a rubber block is formed on the inner side face and/or the outer side face of the voice coil, and the rubber block is in contact with the inner surface of the first convex hull.
Further, the dome includes annular portion, the edge of first convex closure with the inner fringe of annular portion links to each other, the bottom surface of gluing the piece is not less than the bottom surface setting of annular portion.
Further, still include the basin frame and locate magnetic circuit assembly on the basin frame, the vibrating diaphragm is connected the basin frame, the voice coil loudspeaker voice coil is located in the basin frame, magnetic circuit assembly includes the magnetism cover and locates respectively center magnetic circuit assembly and limit magnetic circuit assembly on the magnetism cover, center magnetic circuit assembly with form the magnetic gap between the limit magnetic circuit assembly, the subregion of voice coil loudspeaker voice coil is located in the magnetic gap.
Further, the edge of the top of the central magnetic circuit assembly is provided with a first avoidance groove.
Furthermore, the first convex hull is provided with a reverse convex hull protruding towards the direction close to the central magnetic circuit assembly.
Furthermore, a second avoidance groove for avoiding the reverse convex hull is arranged on the central magnetic circuit component.
Furthermore, a second convex hull protruding towards the direction away from the central magnetic circuit assembly is arranged on the reverse convex hull.
Furthermore, a window is arranged on the diaphragm, and the first convex hull extends into the window.
In order to solve the technical problem, the utility model discloses still adopt following technical scheme: the sounding module comprises the sounding unit.
The beneficial effects of the utility model reside in that: the first convex hull on the dome can not only improve the structural strength of dome self, but also can play the effect of accommodating the glue solution between voice coil loudspeaker voice coil and the dome for magnetic circuit assembly need not to set up the structure of dodging (or reduced the volume of dodging the structure on the magnetic circuit assembly) that is used for dodging the gluey piece, has improved magnetic circuit assembly's volume effectively, and then reaches the effect that improves sound generating unit performance sensitivity. Meanwhile, the risk of collision between the rubber block and the magnetic circuit assembly is avoided, and the acoustic performance of the sound production unit is guaranteed.
Drawings
Fig. 1 is an exploded view of a sound unit according to a first embodiment of the present invention;
fig. 2 is a cross-sectional view of a sound generating unit according to a first embodiment of the present invention;
FIG. 3 is an enlarged view of detail A in FIG. 2;
fig. 4 is a sectional view of a sound generating unit according to a second embodiment of the present invention;
FIG. 5 is an enlarged view of detail B of FIG. 4;
fig. 6 is a schematic structural view of a dome in a sound unit according to a second embodiment of the present invention;
fig. 7 is a cross-sectional view of a sound generating unit according to a third embodiment of the present invention;
FIG. 8 is an enlarged view of detail C of FIG. 7;
fig. 9 is a schematic structural view of a dome in a sound unit according to a third embodiment of the present invention;
fig. 10 is a partial area of a cross-sectional view of a sound unit according to a fourth embodiment of the present invention.
Description of reference numerals:
1. a basin stand;
2. a ball top; 21. a first convex hull; 211. folding edges; 22. an annular portion; 23. a reverse convex hull; 24. a second convex hull;
3. vibrating diaphragm; 31. an inner fixing portion; 311. a window; 32. a folded ring part; 33. an outer fixing portion;
4. a voice coil;
51. a colloid; 52. a rubber block;
6. a magnetic circuit assembly; 61. a magnetic shield; 62. a central magnetic circuit assembly; 621. a central magnetic steel; 622. a central washer; 623. a first avoidance slot; 624. a second avoidance slot; 63. a side magnetic circuit component; 631. edge magnetic steel; 632. a ring washer; 64. a magnetic gap;
7. a support structure.
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 10, the sound generating unit includes a vibration component, the vibration component includes a dome 2, a diaphragm 3 and a voice coil 4, the dome 2 is connected to the diaphragm 3, the dome 2 has a first convex hull 21 protruding in a direction away from the voice coil 4, the voice coil 4 is adhesively connected to the dome 2, and a connection portion between the dome 2 and the voice coil 4 is located in the first convex hull 21.
From the above description, the beneficial effects of the utility model reside in that: first convex closure 21 on dome 2 not only can improve the structural strength of dome 2 self, but also can play the effect of acceping the glue solution between voice coil loudspeaker voice coil 4 and the dome 2 for magnetic circuit assembly 6 need not to set up the structure of dodging (or reduced the volume of dodging the structure on magnetic circuit assembly 6) that is used for dodging gluey piece 52, has improved magnetic circuit assembly 6's volume effectively, and then has reached the effect that improves sound generating unit performance sensitivity. Meanwhile, the risk of collision between the rubber block 52 and the magnetic circuit assembly 6 is avoided, and the acoustic performance of the sound generating unit is ensured.
Further, a rubber block 52 is formed on the inner side surface and/or the outer side surface of the voice coil 4, and the rubber block 52 contacts the inner surface of the first convex hull 21.
As can be seen from the above description, the presence of the rubber block 52 can improve the bonding strength between the voice coil 4 and the dome 2, which is beneficial to ensuring the structural stability of the sound generating unit.
Further, the dome 2 includes a ring portion 22, the edge of the first convex hull 21 is connected to the inner edge of the ring portion 22, and the bottom surface of the rubber block 52 is not lower than the bottom surface of the ring portion 22.
As can be seen from the above description, the rubber block 52 is completely located in the first convex hull 21, so that the rubber block 52 can be effectively prevented from colliding with the magnetic circuit assembly 6.
Further, the voice coil loudspeaker also comprises a basin frame 1 and a magnetic circuit assembly 6 arranged on the basin frame 1, wherein the vibrating diaphragm 3 is connected with the basin frame 1, the voice coil 4 is positioned in the basin frame 1, the magnetic circuit assembly 6 comprises a magnetic cover 61, a central magnetic circuit assembly 62 and an edge magnetic circuit assembly 63 which are respectively arranged on the magnetic cover 61, a magnetic gap 64 is formed between the central magnetic circuit assembly 62 and the edge magnetic circuit assembly 63, and a partial area of the voice coil 4 is positioned in the magnetic gap 64.
Further, the edge of the top of the central magnetic circuit assembly 62 is provided with a first avoidance groove 623.
As can be seen from the above description, the first avoidance groove 623 is used for avoiding the rubber block 52 on the inner side surface of the voice coil 4, so as to ensure that the rubber block 52 does not collide with the central magnetic circuit assembly 62.
Further, the first convex hull 21 is provided with a reverse convex hull 23 protruding toward the central magnetic circuit assembly 62.
As can be seen from the above description, the provision of the reverse convex hull 23 can improve the rigidity of the dome 2 and enhance the structural strength of the dome 2.
Further, a second avoiding groove 624 is formed on the central magnetic circuit assembly 62 for avoiding the reverse convex hull 23.
As can be seen from the above description, the presence of the second avoiding groove 624 can prevent the reverse convex hull 23 from colliding with the central magnetic circuit assembly 62 to generate noise, which is beneficial to ensuring the acoustic performance of the sound generating unit.
Further, the reverse convex hull 23 is provided with a second convex hull 24 protruding away from the central magnetic circuit assembly 62.
As can be seen from the above description, the provision of the second convex hull 24 can further improve the structural strength of the dome 2.
Further, a window 311 is disposed on the diaphragm 3, and the first convex hull 21 extends into the window 311.
As can be seen from the above description, the arrangement of the first convex hull 21 does not affect the thickness of the sound generating unit, so that the sound generating unit can be thinned.
The sounding module comprises the sounding unit.
The sound production module has the advantages of high performance sensitivity, good acoustic performance, stable structure and the like.
Example one
Referring to fig. 1 to fig. 3, a first embodiment of the present invention is: the sounding module can be applied to various electronic devices such as mobile phones, tablet computers, notebook computers, intelligent watches, game handles, interphones, video cameras and cameras.
The sound production module includes the module shell and locates sound production unit in the module shell. The sound production unit includes basin frame 1 and locates respectively vibration subassembly and magnetic circuit assembly 6 on the basin frame 1, the vibration subassembly includes ball top 2, vibrating diaphragm 3 and voice coil loudspeaker voice coil 4, vibrating diaphragm 3 is connected respectively ball top 2 with basin frame 1, voice coil loudspeaker voice coil 4 is located in the basin frame 1, voice coil loudspeaker voice coil 4 is connected ball top 2, ball top 2 has towards keeping away from voice coil loudspeaker voice coil 4 convex first convex closure 21 of direction, be equipped with window 311 on the vibrating diaphragm 3, first convex closure 21 stretches into in the window 311.
Specifically, the diaphragm 3 includes an inner fixing portion 31, a corrugated portion 32 and an outer fixing portion 33 which are connected in sequence from inside to outside, the window 311 is disposed in the center of the inner fixing portion 31, and the outer fixing portion 33 is connected to the frame 1; the dome 2 includes a ring portion 22, the edge of the first convex hull 21 is connected to the inner edge of the ring portion 22, and the side of the ring portion 22 away from the magnetic circuit assembly 6 is fixedly connected to the inner fixing portion 31.
The voice coil 4 is connected with the dome 2 through gluing, and the joint of the dome 2 and the voice coil 4 is positioned in the first convex hull 21.
In detail, a glue 51 is disposed between the top surface of the voice coil 4 and the first convex hull 21, a glue block 52 is formed on the inner side surface and/or the outer side surface of the voice coil 4, and the glue block 52 is connected to the glue 51, that is, the glue block 52 may be formed due to an overflow phenomenon, and the glue block 52 contacts the inner surface of the first convex hull 21. In a preferred embodiment, when the rubber block 52 is provided on the outer side surface of the voice coil 4, a gap is provided between the rubber block 52 positioned on the outer side surface of the voice coil 4 and the folded edge 211 of the first convex hull 21, and the gap can play a role of accommodating the rubber solution, so that the rubber block 52 is prevented from extending out of the first convex hull 21 to reach other positions (such as the annular part 22) of the dome 2, and the first convex hull 21 is connected to the annular part 22 through the folded edge 211. It should be noted that, in other embodiments, the glue 51 may not be disposed between the top surface of the voice coil 4 and the first convex hull 21, and at this time, the voice coil 4 and the dome 2 are all connected and fixed by the glue block 52 formed by a glue dispensing process.
In this embodiment, the inner side surface and the outer side surface of the voice coil 4 are respectively provided with the rubber blocks 52, and in other embodiments, the inner side surface or the outer side surface of the voice coil 4 can be only provided with the rubber blocks 52 by means of jig assistance or structural design of the voice coil 4.
As shown in fig. 3, the bottom surface of the rubber block 52 is preferably not lower than the bottom surface of the ring portion 22. Of course, in some embodiments, it is also possible that the bottom surface of the rubber block 52 is slightly lower than the bottom surface of the ring portion 22.
The magnetic circuit assembly 6 includes a magnetic cover 61, and a central magnetic circuit assembly 62 and a side magnetic circuit assembly 63 respectively disposed on the magnetic cover 61, a magnetic gap 64 is formed between the central magnetic circuit assembly 62 and the side magnetic circuit assembly 63, and a partial region of the voice coil 4 is located in the magnetic gap 64. In this embodiment, the central magnetic circuit assembly 62 includes a central washer 622 and a central magnetic steel 621 respectively connecting the central washer 622 and the magnetic cover 61; the side magnetic circuit component 63 comprises a side washer and side magnetic steel 631 respectively connected with the side washer and the magnetic cover 61, and the annular washer 632 is connected with the basin stand 1.
For the volume of increase magnetic circuit component 6, further improve sound generating unit's performance sensitivity, in this embodiment, the thickness of center china department 622 sets up thickly, can be obvious see in fig. 3, the top surface of center china department 622 is higher than the top surface of annular china department 632, at this moment, for avoiding sound generating unit in the course of the work, be located on the medial surface of voice coil 4 glue piece 52 with center china department 622 bumps, the edge at the top of center magnetic circuit component 62 is equipped with first groove 623 of dodging, and in this embodiment, first groove 623 of dodging is located on the center china department 622. Preferably, the bottom surface of the first avoiding groove 623 is substantially flush with the top surface of the annular washer 632, that is, the bottom surface of the first avoiding groove 623 is flush with the top surface of the annular washer 632, or the bottom surface of the first avoiding groove 623 is slightly higher/lower than the top surface of the annular washer 632. It is understood that in other embodiments, when the central magnetic circuit assembly 62 does not have the central washer 622, the first avoiding groove 623 may be disposed on the central magnetic steel 621. It is easy to understand that when the central magnetic circuit assembly 62 is not thickened (for example, when the top surface of the central magnetic circuit assembly 62 is substantially flush with the top surface of the side magnetic circuit assembly 63), it is also possible to eliminate the first avoiding groove 623 on the central magnetic circuit assembly 62.
Optionally, the vibration assembly further includes a support structure 7, the support structure 7 is connected to the frame 1 and the voice coil 4, and in this embodiment, the support structure 7 is a centering support.
Example two
Referring to fig. 4 to 6, the second embodiment of the present invention is a further improvement of the dome 2 on the basis of the first embodiment, and the difference from the first embodiment is only that: the first convex hull 21 is provided with a reverse convex hull 23 protruding towards the direction close to the central magnetic circuit assembly 62, and the rigidity of the dome 2 can be improved by the reverse convex hull 23, so that the structural stability of the sound generating unit is improved.
Optionally, a second avoiding groove 624 is formed on the central magnetic circuit assembly 62 for avoiding the reverse convex hull 23. In this embodiment, the second avoiding groove 624 is formed in a central region of the top surface of the central washer 622.
EXAMPLE III
Referring to fig. 7 to 9, a third embodiment of the present invention is a further improvement of the top 2 on the basis of the second embodiment, and the difference from the second embodiment is only that: the reverse convex hull 23 is provided with a second convex hull 24 protruding in the direction away from the central magnetic circuit assembly 62, and the second convex hull 24 can further improve the rigidity of the dome 2, so that the structural stability of the sound generating unit is further improved.
In this embodiment, the second convex hull 24 is located in the central region of the dome 2.
Example four
Referring to fig. 10, a fourth embodiment of the present invention is a parallel technical solution of the first embodiment, and is different from the first embodiment only in that: the side magnetic circuit assemblies 63 are differently configured.
In this embodiment, at least a part of the magnetic circuit assembly 63 is a flange of the magnetic cover 61, and in detail, a part of the area of the magnetic cover 61 is bent toward the vibration assembly to form the flange. The magnetic gap 64 is formed between the flange and the central magnetic circuit component 62, and the flange can also play a role of magnetic conduction.
To sum up, the utility model provides a sound production unit and sound production module, the first convex closure on the ball top not only can improve the structural strength of ball top self, but also can play the effect of accommodating the glue solution between voice coil loudspeaker voice coil and the ball top for magnetic circuit component need not to set up the structure of dodging (or reduced the volume of dodging the structure on the magnetic circuit component) that is used for dodging the gluey piece, has improved magnetic circuit component's volume effectively, and then has reached the effect that improves sound production unit performance sensitivity. Meanwhile, the risk of collision between the rubber block and the magnetic circuit assembly is avoided, and the acoustic performance of the sound production unit is guaranteed.
The above mentioned is only the embodiment of the present invention, and the patent scope of the present invention is not limited thereby, and 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. Sound generating unit, its characterized in that: including the vibration subassembly, the vibration subassembly includes ball top, vibrating diaphragm and voice coil loudspeaker voice coil, the ball top is connected the vibrating diaphragm, the ball top has towards keeping away from the convex first convex closure of voice coil loudspeaker voice coil direction, the voice coil loudspeaker voice coil with ball top adhesive bonding, the ball top with the junction of voice coil loudspeaker voice coil is located in the first convex closure.
2. The sound generating unit of claim 1, wherein: and a rubber block is formed on the inner side surface and/or the outer side surface of the voice coil, and the rubber block is contacted with the inner surface of the first convex hull.
3. The sound generating unit of claim 2, wherein: the dome includes annular portion, the edge of first convex closure with the interior border of annular portion links to each other, the bottom surface of gluing the piece is not less than the bottom surface setting of annular portion.
4. The sound generating unit of claim 2, wherein: still include the basin frame and locate magnetic circuit assembly on the basin frame, the vibrating diaphragm is connected the basin frame, the voice coil loudspeaker voice coil is located in the basin frame, magnetic circuit assembly includes the magnetic shield and locates respectively center magnetic circuit assembly and limit magnetic circuit assembly on the magnetic shield, center magnetic circuit assembly with form the magnetic gap between the limit magnetic circuit assembly, the subregion of voice coil loudspeaker voice coil is located in the magnetic gap.
5. The sound generating unit of claim 4, wherein: the edge of the top of the central magnetic circuit component is provided with a first avoidance groove.
6. The sound generating unit of claim 4, wherein: and the first convex hull is provided with a reverse convex hull protruding towards the direction close to the central magnetic circuit assembly.
7. The sound generating unit of claim 6, wherein: and a second avoidance groove for avoiding the reverse convex hull is arranged on the central magnetic circuit component.
8. The sound generating unit of claim 6, wherein: and a second convex hull protruding towards the direction far away from the central magnetic circuit assembly is arranged on the reverse convex hull.
9. The sound generating unit of claim 1, wherein: a window is arranged on the vibrating diaphragm, and the first convex hull extends into the window.
10. The sound production module, its characterized in that: comprising a sound emitting unit according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221743238.XU CN218352720U (en) | 2022-07-06 | 2022-07-06 | Sound production unit and sound production module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221743238.XU CN218352720U (en) | 2022-07-06 | 2022-07-06 | Sound production unit and sound production module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218352720U true CN218352720U (en) | 2023-01-20 |
Family
ID=84911592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221743238.XU Active CN218352720U (en) | 2022-07-06 | 2022-07-06 | Sound production unit and sound production module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218352720U (en) |
-
2022
- 2022-07-06 CN CN202221743238.XU patent/CN218352720U/en active Active
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