CN213073084U - Large-amplitude micro loudspeaker - Google Patents
Large-amplitude micro loudspeaker Download PDFInfo
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- CN213073084U CN213073084U CN202021497242.3U CN202021497242U CN213073084U CN 213073084 U CN213073084 U CN 213073084U CN 202021497242 U CN202021497242 U CN 202021497242U CN 213073084 U CN213073084 U CN 213073084U
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Abstract
The utility model discloses a miniature speaker of big amplitude, including voice coil loudspeaker voice coil, basin frame, supporting component and connection the voice coil loudspeaker voice coil with the vibrating diaphragm subassembly of basin frame, the voice coil loudspeaker voice coil passes through the supporting component with the basin frame is connected, still be equipped with on the voice coil loudspeaker voice coil with the skeleton that the supporting component is connected, the indent structure has been seted up respectively in four bights of voice coil loudspeaker voice coil, the supporting component with the junction of skeleton is located in the indent structure. The utility model provides a miniature speaker of big amplitude simple structure, spatial layout are reasonable, are equipped with the indent structure on the voice coil loudspeaker voice coil and are located the skeleton of indent structure, and support component and skeleton joint have ensured that support component can connect in the lateral wall department of voice coil loudspeaker voice coil, have ensured the compactedness of speaker amplitude increase rear structure, satisfy the miniaturized development trend of speaker, provide sufficient space for support component's optimal design, do benefit to the promotion of speaker amplitude.
Description
Technical Field
The utility model relates to an acoustics device technical field especially relates to a miniature speaker of big amplitude.
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. With the increasing requirements of sound quality and loudness of microelectronic devices, the requirements of performance of micro-speakers and the like are also increasing.
The existing design is through addding the skeleton on the voice coil loudspeaker voice coil, and the adjustment voice coil loudspeaker voice coil is in the position effect in magnetic gap to promote miniature speaker performance, the skeleton can play the effect that supports fixed stay part simultaneously, restraines the voice coil loudspeaker voice coil and sways, thereby promotes miniature speaker amplitude.
However, in order not to affect the performance sensitivity of the micro-speaker, the support component is located at four ends of the voice coil, and the framework support fixed support component is also located at the outer side surfaces of the four ends of the voice coil.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: a large-amplitude micro-speaker is provided.
In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides a miniature speaker of big amplitude, includes voice coil loudspeaker voice coil, basin frame, supporting component and connection the voice coil loudspeaker voice coil with the vibrating diaphragm subassembly of basin frame, the voice coil loudspeaker voice coil passes through supporting component with the basin frame is connected, still be equipped with on the voice coil loudspeaker voice coil with the skeleton that supporting component connects, the indent structure has been seted up respectively in four bights of voice coil loudspeaker voice coil, supporting component with the junction of skeleton is located in the indent structure.
Further, the framework comprises a first platform, a first connecting part and a second platform which are sequentially connected, the first platform is connected with the top of the voice coil, and the second platform is connected with the supporting part.
Furthermore, the first platform extends towards the bottom of the voice coil to form the first connecting part.
Further, the bobbin further includes a third platform connected to the diaphragm assembly, and a second connecting portion extending from the third platform toward the voice coil direction and connected to the first platform.
Furthermore, the framework is of an integrated structure.
Furthermore, the voice coil loudspeaker further comprises a magnetic circuit assembly, wherein the magnetic circuit assembly comprises central magnetic steel positioned on the inner side of the voice coil and a central washer arranged at the top of the central magnetic steel, and avoidance notches are respectively formed in the positions, close to the corner of the voice coil, of the central magnetic steel and the central washer.
Furthermore, the joint of the vibrating diaphragm component and the framework is located right above the central washer, and the central washer is provided with a clearance position for avoiding the framework.
Furthermore, the supporting component comprises a centering branch piece connected to the bottom surface of the framework and a secondary membrane connected to the bottom surface of the centering branch piece.
Furthermore, the concave structure is an L-shaped notch, a straight-edge chamfer or a fillet notch formed by inwards concave corners of the voice coil.
Furthermore, the thickness of the framework is 0.05-0.4 mm.
The beneficial effects of the utility model reside in that: the utility model provides a miniature speaker of big amplitude simple structure, spatial layout are reasonable, are equipped with the indent structure on the voice coil loudspeaker voice coil and are located the skeleton of indent structure, and support component and skeleton joint have ensured that support component can connect in the lateral wall department of voice coil loudspeaker voice coil, have ensured the compactedness of speaker amplitude increase rear structure, satisfy the miniaturized development trend of speaker, provide sufficient space for support component's optimal design, do benefit to the promotion of speaker amplitude.
Drawings
Fig. 1 is an exploded view of a large-amplitude micro-speaker according to a first embodiment of the present invention;
fig. 2 is a schematic cross-sectional structure view of a large-amplitude micro-speaker according to a first embodiment of the present invention;
FIG. 3 is an enlarged view taken at A in FIG. 2;
fig. 4 is a schematic view of a partial structure of a large-amplitude micro speaker according to a first embodiment of the present invention.
Description of reference numerals:
1. a voice coil; 11. a concave structure; 2. a framework; 21. a first platform; 22. a second platform; 23. a first connection portion; 24. a third platform; 25. a second connecting portion; 3. a diaphragm assembly; 4. a basin stand; 5. a centering support; 6. a secondary membrane; 7. a central washer; 71. avoiding vacant positions; 8. central magnetic steel; 81. avoiding the notch; 9. a magnetic bowl; 91. and (5) avoiding a clearance groove.
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 4, a large-amplitude micro speaker includes a voice coil 1, a frame 4, a support member, and a diaphragm assembly 3 connecting the voice coil 1 and the frame 4, wherein the voice coil 1 is connected to the frame 4 through the support member, the voice coil 1 is further provided with a frame 2 connected to the support member, four corners of the voice coil 1 are respectively provided with an inner concave structure 11, and a connection portion between the support member and the frame 2 is located in the inner concave structure 11.
From the above description, the beneficial effects of the present invention are: being equipped with inner concave structure 11 on the voice coil loudspeaker voice coil 1 and being located the skeleton 2 of inner concave structure 11, support component is connected with skeleton 2, has ensured that support component can connect in voice coil loudspeaker voice coil 1's lateral wall department, has ensured that the speaker amplitude increases the compactedness of rear structure, satisfies the miniaturized development trend of speaker, provides sufficient space for support component's optimal design, does benefit to the promotion of speaker amplitude.
Further, the framework 2 comprises a first platform 21, a first connecting portion 23 and a second platform 22 which are connected in sequence, the first platform 21 is connected with the top of the voice coil 1, and the second platform 22 is connected with the supporting component.
As can be seen from the above description, the first platform 21 and the second platform 22 disposed on the bobbin 2 are beneficial to improving the stability of the connection between the bobbin 2 and the voice coil 1 and the supporting member.
Further, the first platform 21 extends toward the bottom of the voice coil 1 to form the first connection portion 23.
As can be seen from the above description, the length of the first connection portion 23 can be set according to the actual application requirement, so as to change the relative height between the voice coil 1 and the support member, thereby facilitating the improvement of the versatility of the large-amplitude micro-speaker.
Further, the bobbin 2 further includes a third platform 24 connected to the diaphragm assembly 3, and a second connection portion 25 extending from the third platform 24 to the voice coil 1 and connected to the first platform 21.
As can be seen from the above description, the third platform 24 facilitates the improvement of the connection stability between the framework 2 and the diaphragm assembly 3, so as to ensure that the diaphragm assembly 3 can effectively vibrate along with the voice coil 1, the length of the second connection portion 25 can be set according to the actual application requirement, and the second connection portion 25 can increase the volume of the voice coil 1 in the magnetic circuit gap, thereby facilitating the improvement of the acoustic performance of the speaker.
Further, the framework 2 is of an integrated structure.
As can be seen from the above description, the frame 2 is easily molded, which facilitates reduction of manufacturing costs.
Furthermore, the voice coil loudspeaker further comprises a magnetic circuit assembly, wherein the magnetic circuit assembly comprises a central magnetic steel 8 positioned on the inner side of the voice coil 1 and a central washer 7 arranged at the top of the central magnetic steel 8, and avoidance notches 81 are respectively formed in positions, close to the corner of the voice coil 1, of the central magnetic steel 8 and the central washer 7.
It can be known from the above description that the avoidance notch 81 can avoid the interference of the voice coil 1 with the central washer 7 and the central magnetic steel 8, and the stability of the functional performance of the loudspeaker is ensured.
Further, the joint of the diaphragm assembly 3 and the framework 2 is located right above the central washer 7, and the central washer 7 is provided with a clearance 71 for avoiding the framework 2.
As can be seen from the above description, the gap-avoiding position 71 avoids the interference between the frame 2 and the central washer 7, and is beneficial to the improvement of the amplitude of the speaker.
Further, the support member includes a centering support 5 attached to the bottom surface of the frame 2 and a sub-membrane 6 attached to the bottom surface of the centering support 5.
Further, the concave structure 11 is an L-shaped notch, a straight-side chamfer or a fillet notch formed by concave-in the corner of the voice coil 1.
From the above description, the shape of the concave structure 11 can be set according to the practical application requirement.
Further, the thickness of the framework 2 is 0.05-0.4 mm.
Example one
Referring to fig. 1 to 4, a first embodiment of the present invention is: a large-amplitude micro loudspeaker comprises a voice coil 1, a basin frame 4, a magnetic circuit assembly, a supporting component and a vibrating diaphragm assembly 3 for connecting the voice coil 1 and the basin frame 4, wherein the voice coil 1 is connected with the basin frame 4 through the supporting component, a framework 2 connected with the supporting component is further arranged on the voice coil 1, concave structures 11 are respectively arranged at four corners of the voice coil 1, the connecting part of the supporting component and the framework 2 is positioned in the concave structures 11, the magnetic circuit assembly comprises a central magnetic steel 8 positioned on the inner side of the voice coil 1 and a central washer 7 arranged at the top of the central magnetic steel 8, and avoiding notches 81 are respectively arranged at positions of the central magnetic steel 8 and the central washer 7 close to the corners of the voice coil 1; optionally, the concave structure 11 is an L-shaped notch, a straight-side chamfer or a fillet notch formed by recessing the corner of the voice coil 1, and specifically in this embodiment, the concave structure 11 is an L-shaped notch.
Preferably, the framework 2 is of an integrated structure, so that the framework is easy to understand, and the framework 2 is easy to form, thereby being beneficial to reducing the manufacturing cost.
Referring to fig. 2 and fig. 3, in the present embodiment, the bobbin 2 includes a first platform 21, a first connecting portion 23, and a second platform 22, which are connected in sequence, the first platform 21 is connected to the top of the voice coil 1, and the second platform 22 is connected to the supporting member, which is easy to understand that the first platform 21 and the second platform 22 disposed on the bobbin 2 are beneficial to improving the stability of the connection between the bobbin 2 and the voice coil 1 and the supporting member.
Specifically, please refer to fig. 1 to 3, the magnetic circuit assembly further includes a magnetic bowl 9 disposed on the frame 4, the central magnetic steel 8 is disposed in the middle of the magnetic bowl 9, the voice coil 1 and the support component are located right above the magnetic bowl 9, the first platform 21 extends toward the bottom of the voice coil 1 to form the first connection portion 23, the first connection portion 23 is connected to the inner side wall of the concave structure 11, it is easy to understand that the length of the first connection portion 23 can be set according to the actual application requirement, so as to change the relative height between the voice coil 1 and the support component, which is beneficial to improving the universality of the large-amplitude micro-speaker, and simultaneously, the support component and the voice coil 1 are prevented from interfering with the magnetic bowl 9; in detail, the magnetic bowl 9 is provided with an avoiding groove 91 at a position corresponding to the supporting component, which is easy to understand, and the avoiding groove 91 can avoid the supporting component, thereby facilitating the lifting of the amplitude of the loudspeaker.
Preferably, please refer to fig. 2 and fig. 3, the bobbin 2 further includes a third platform 24 connected to the diaphragm assembly 3 and a second connecting portion 25 extending from the third platform 24 to the voice coil 1 and connected to the first platform 21, and as can be easily understood, the third platform 24 facilitates the improvement of the stability of the connection between the bobbin 2 and the diaphragm assembly 3, so as to ensure that the diaphragm assembly 3 can effectively vibrate with the voice coil 1, the length of the second connecting portion 25 can be set according to the actual application requirement, and the second connecting portion 25 can increase the volume ratio of the voice coil 1 in the magnetic circuit gap, which is beneficial to the improvement of the acoustic performance of the speaker.
Preferably, the supporting member includes a spider 5 bonded and fixed to the bottom surface of the frame 2 and a secondary membrane 6 connected to the bottom surface of the spider 5, and more specifically, the spider 5 is bonded and fixed to the bottom surface of the second platform 22, the edge of the second platform 22 does not exceed the outer side wall edge of the voice coil 1, that is, along the height direction projection of the voice coil 1, and the second platform 22 is located in the projection area of the concave structure 11, so that the maximization of the cantilever of the spider 5 and the edge of the secondary membrane 6 can be ensured, and the improvement of the amplitude of the speaker is facilitated.
Optionally, the joint between the bobbin 2 and the diaphragm assembly 3 (i.e., the third platform 24) may be disposed directly above the voice coil 1 according to actual application requirements, or may be disposed directly above the center washer 7 (as in this embodiment).
Preferably, referring to fig. 3, the center washer 7 is provided with a clearance 71 for avoiding the third platform 24 of the bobbin 2, specifically, the third platform 24 is located in a projection region of the clearance 71 along the projection of the voice coil 1 in the height direction, and the horizontal distance between the edge end of the third platform 24 located on the inner side of the voice coil 1 and the side wall of the clearance 71 is greater than or equal to 0.15mm, which is easy to understand, and the clearance 71 avoids the interference between the bobbin 2 and the center washer 7, and is favorable for the improvement of the amplitude of the speaker.
Optionally, the thickness of the skeleton 2 is 0.05-0.4mm, and in this embodiment, the thickness of the skeleton 2 is 0.05 mm.
To sum up, the utility model provides a miniature speaker of big amplitude compact structure, commonality are strong, and structural stability is good, satisfy the miniaturized, big amplitude development trend of speaker.
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 miniature speaker of big amplitude, includes voice coil loudspeaker voice coil, basin frame, support component and connection the voice coil loudspeaker voice coil with the vibrating diaphragm subassembly of basin frame, the voice coil loudspeaker voice coil passes through support component with the basin frame is connected, its characterized in that, still be equipped with on the voice coil loudspeaker voice coil with the skeleton that support component connects, the indent structure has been seted up respectively in four bights of voice coil loudspeaker voice coil, support component with the junction of skeleton is located in the indent structure.
2. The micro loudspeaker according to claim 1, wherein the frame comprises a first platform, a first connecting portion and a second platform connected in sequence, the first platform is connected to the top of the voice coil, and the second platform is connected to the supporting member.
3. The micro-speaker as claimed in claim 2, wherein the first land extends toward the bottom of the voice coil to form the first connection portion.
4. The micro loudspeaker of claim 2, wherein the frame further comprises a third platform connected to the diaphragm assembly and a second connecting portion extending from the third platform in a direction of the voice coil and connected to the first platform.
5. The large amplitude microspeaker of claim 2 wherein the frame is a one-piece structure.
6. The micro large-amplitude loudspeaker according to claim 1, further comprising a magnetic circuit assembly, wherein the magnetic circuit assembly comprises a central magnetic steel located inside the voice coil and a central washer located on top of the central magnetic steel, and avoidance notches are respectively formed in positions of the central magnetic steel and the central washer near corners of the voice coil.
7. The micro large-amplitude loudspeaker according to claim 6, wherein the joint of the diaphragm assembly and the framework is located right above the central washer, and the central washer is provided with a clearance for avoiding the framework.
8. The loud amplitude microspeaker of claim 1 wherein the support member comprises a spider attached to a bottom surface of the frame and a secondary membrane attached to a bottom surface of the spider.
9. The micro-speaker as claimed in claim 1, wherein the concave structure is an L-shaped notch, a straight chamfer or a rounded notch formed by the concave of the corner of the voice coil.
10. The loud amplitude microspeaker of claim 1 wherein the thickness of the armature is 0.05 to 0.4 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021497242.3U CN213073084U (en) | 2020-07-24 | 2020-07-24 | Large-amplitude micro loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021497242.3U CN213073084U (en) | 2020-07-24 | 2020-07-24 | Large-amplitude micro loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213073084U true CN213073084U (en) | 2021-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021497242.3U Active CN213073084U (en) | 2020-07-24 | 2020-07-24 | Large-amplitude micro loudspeaker |
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| Country | Link |
|---|---|
| CN (1) | CN213073084U (en) |
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- 2020-07-24 CN CN202021497242.3U patent/CN213073084U/en active Active
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