CN211959518U - Vibrating diaphragm and sound production device - Google Patents
Vibrating diaphragm and sound production device Download PDFInfo
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- CN211959518U CN211959518U CN201922487845.9U CN201922487845U CN211959518U CN 211959518 U CN211959518 U CN 211959518U CN 201922487845 U CN201922487845 U CN 201922487845U CN 211959518 U CN211959518 U CN 211959518U
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Abstract
The utility model discloses a vibrating diaphragm, which comprises a central part and a folded ring part extending from the central part and arranged around the central part, wherein the folded ring part comprises an upper folded ring surface and a lower folded ring surface opposite to the upper folded ring surface; the diaphragm also comprises an upper graphic model part formed by the protrusion or the depression of the upper surface of the corrugated rim and a lower graphic model part formed by the protrusion or the depression of the lower surface of the corrugated rim, the upper graphic model part comprises a plurality of upper characteristic graphs which are arranged at intervals along the surrounding direction of the corrugated rim, and the lower graphic model part comprises a plurality of lower characteristic graphs which are arranged at intervals along the surrounding direction of the corrugated rim; the projection of the upper characteristic pattern along the thickness direction of the corrugated rim part and the projection of the lower characteristic pattern along the thickness direction of the corrugated rim part have no overlapping part. The utility model also provides an utilize vocal device of this vibrating diaphragm. Compared with the prior art, the utility model discloses a vibrating diaphragm and sound production device stability is good and acoustic performance is more excellent.
Description
Technical Field
The utility model relates to an electroacoustic conversion field especially relates to a vibrating diaphragm and sound production device of applying this vibrating diaphragm.
Background
In the process of rapid development of portable equipment such as mobile phones, people have increasingly strong requirements on the functionality of products, and for music appreciation of electronic equipment such as mobile phones, in order to make the entertainment effect stronger, a mode of music band vibration appears, so that the development of sound production devices is correspondingly accelerated.
A sound production device of the related art includes a frame, a diaphragm supported by the frame, and a voice coil for driving the diaphragm to vibrate. The diaphragm includes a central portion and a flexure portion extending from and disposed around the central portion.
However, in the sound-generating device in the related art, the cross section of the folded ring portion is of an arc-shaped structure, and both the upper surface and the lower surface of the folded ring portion are of smooth surface structures, so that the acoustic performance of the vibrating diaphragm cannot be further improved, and the vibrating diaphragm may swing during vibration, thereby causing noise and even distortion, and causing the acoustic performance of the sound-generating device to be limited.
Therefore, there is a need to provide a new diaphragm and a sound generating device to solve the above-mentioned problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming above-mentioned technical problem, provide a good and better vibrating diaphragm of acoustic performance of stability and sound production device. In order to achieve the above object, the present invention provides a diaphragm, which includes a central portion and a folded ring portion extending from and surrounding the central portion, wherein the folded ring portion includes an upper folded ring surface and a lower folded ring surface opposite to the upper folded ring surface; the diaphragm also comprises an upper graphic model part formed by the protrusion or the depression of the upper surface of the corrugated rim and a lower graphic model part formed by the protrusion or the depression of the lower surface of the corrugated rim, the upper graphic model part comprises a plurality of upper characteristic graphs which are arranged at intervals along the surrounding direction of the corrugated rim, and the lower graphic model part comprises a plurality of lower characteristic graphs which are arranged at intervals along the surrounding direction of the corrugated rim; and the projection of the upper characteristic pattern along the thickness direction of the corrugated rim part and the projection of the lower characteristic pattern along the thickness direction of the corrugated rim part have no overlapping part.
Preferably, a plurality of the upper feature patterns are arranged in a fan shape, and a plurality of the lower feature patterns are arranged in a fan shape.
Preferably, the edge portion includes a plurality of first connecting portions respectively located on the upper surface of the edge and spaced from each other, and a plurality of second connecting portions respectively located on the lower surface of the edge and spaced from each other; each first connecting part is connected with two adjacent upper feature patterns, and the area of the projection of the first connecting part along the thickness direction of the folded ring part is equal to the area of the projection of the lower feature pattern, which is arranged opposite to the first connecting part, along the thickness direction of the folded ring part; each second connecting part is connected with two adjacent lower characteristic patterns, and the area of the projection of the second connecting part along the thickness direction of the folded ring part is equal to the area of the projection of the upper characteristic pattern, which is opposite to the second connecting part, along the thickness direction of the folded ring part.
Preferably, the ring-folding part is of a round-corner rectangular structure, the upper pattern module part comprises four round corners which are respectively located on the ring-folding part, and the lower pattern module part comprises four round corners which are respectively located on the ring-folding part.
Preferably, the upper pattern mold part is formed by the upper surface of the folding ring protruding towards the direction far away from the lower surface of the folding ring; the lower pattern die part is formed by the fact that the lower surface of the folding ring is sunken towards the direction of the upper surface of the folding ring.
Preferably, the upper pattern mold part is formed by the upper surface of the corrugated rim sinking towards the lower surface of the corrugated rim; the lower pattern die part is formed by the protrusion of the lower surface of the folding ring towards the direction far away from the upper surface of the folding ring.
Preferably, the upper pattern mold part is formed by the upper surface of the folding ring protruding towards the direction far away from the lower surface of the folding ring; the lower pattern die part is formed by the protrusion of the lower surface of the folding ring towards the direction far away from the upper surface of the folding ring.
Preferably, the upper pattern mold part is formed by the upper surface of the corrugated rim sinking towards the lower surface of the corrugated rim; the lower pattern die part is formed by the fact that the lower surface of the folding ring is sunken towards the direction of the upper surface of the folding ring.
Preferably, the upper characteristic pattern is of a strip-shaped structure and spans the folded ring part; the lower characteristic pattern is of a strip-shaped structure and spans the folded ring part.
Compared with the prior art, the utility model provides a vibrating diaphragm sets up the upper graph mould portion that protrusion or sunken formation formed at the book ring upper surface of its book ring portion and sets up the lower graph mould portion that protrusion or sunken formation formed at the book ring lower surface, upper graph mould portion includes along a plurality of upper characteristic graphics that the direction interval of encircleing of book ring portion set up, lower graph mould portion includes along a plurality of lower characteristic graphics that the direction interval of encircleing of book ring portion set up; go up the characteristic pattern along the projection of book ring portion thickness direction with the characteristic pattern is followed down the projection of book ring portion thickness direction does not have overlapping portion, can improve the structural strength of vibrating diaphragm as required with the pertinence adjustment, the problem that R angle department is discounted easily when improving the vibrating diaphragm and vibrating from top to bottom, when this vibrating diaphragm applies to the sound production device, has effectively improved the equilibrium and the stability of vibrating diaphragm vibration, has improved the pure tone, the distortion and the rocking of sound production device for the acoustic performance of sound production device is more excellent.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:
fig. 1 is a schematic structural diagram of a first embodiment of a diaphragm according to the present invention;
fig. 2 is a schematic structural view of another angle of the embodiment of the diaphragm of the present invention;
fig. 3 is a schematic cross-sectional view of a first embodiment of the diaphragm according to the present invention;
FIG. 4 is an enlarged view of the portion A shown in FIG. 3;
fig. 5 is a schematic structural diagram of a second embodiment of the diaphragm according to the present invention;
fig. 6 is a schematic structural view of a vibrating diaphragm according to another angle in the embodiment of the present invention;
fig. 7 is a schematic cross-sectional view of a second embodiment of the diaphragm according to the present invention;
FIG. 8 is an enlarged view of the portion indicated by B in FIG. 7;
fig. 9 is a schematic structural diagram of a third embodiment of the diaphragm according to the present invention;
fig. 10 is a schematic structural diagram of a diaphragm according to another angle of the embodiment of the present invention;
fig. 11 is a schematic cross-sectional view of a third embodiment of the diaphragm according to the present invention;
fig. 12 is an enlarged view of a portion indicated by C in fig. 11;
fig. 13 is a schematic structural diagram of a fourth embodiment of the diaphragm according to the present invention;
fig. 14 is a schematic structural diagram of a diaphragm according to another angle in the embodiment of the present invention;
fig. 15 is a schematic cross-sectional view of a fourth embodiment of the diaphragm according to the present invention;
fig. 16 is an enlarged view of the portion indicated by D in fig. 15;
fig. 17 is an exploded view of a part of the sound device of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides a diaphragm 10, which includes a central portion 1 and a bending portion 2 extending from the central portion 1 and surrounding the central portion 1.
The central part 1 is used for vibrating and sounding, and the annular folding part 2 is used for providing elastic supporting force for the central part 1 when vibrating so as to realize the amplitude required by the central part 1.
The grommet 2 includes a grommet upper surface 21 and a grommet lower surface 22 opposite to the grommet upper surface 21.
In order to adjust and improve the acoustic performance of the diaphragm 10, such as pure tone, distortion, stability, vibration balance, etc., in this embodiment, the diaphragm 10 further includes an upper pattern mold portion 23 formed by the protrusion or depression of the edge upper surface 21 and a lower pattern mold portion 24 formed by the protrusion or depression of the edge lower surface 22, that is, the upper pattern mold portion 23 and the lower pattern mold portion 24 are respectively formed on two opposite sides of the edge portion 2; the upper pattern mold part 23 includes a plurality of upper feature patterns 231 spaced apart along the circumferential direction of the loop part 2, and the lower pattern mold part 24 includes a plurality of lower feature patterns 241 spaced apart along the circumferential direction of the loop part 2; the projection of the upper feature pattern 231 in the thickness direction of the loop part 2 and the projection of the lower feature pattern 241 in the thickness direction of the loop part 2 have no overlapping portion.
It should be mentioned that the arrangement of the plurality of upper feature patterns of the same upper pattern module and the arrangement of the plurality of lower feature patterns of the same lower pattern module are not limited, and they may be specifically set according to the needs of the actual situation, for example, in the present embodiment, the same plurality of upper feature patterns 231 of the upper pattern module 23 are arranged in a fan shape, and the same plurality of upper feature patterns 241 of the lower pattern module 24 are arranged in a fan shape.
Specifically, the annular folding part 2 is of a round-corner rectangular structure, the upper pattern mold part 23 comprises four parts and is respectively located at four round-corner positions of the annular folding part 2, and the lower pattern mold part 24 comprises four parts and is respectively located at four round-corner positions of the annular folding part 2. The arrangement of the structure position effectively improves the problem that round corners (R corners) are easy to break when the vibrating diaphragm 10 vibrates up and down, thereby further improving the vibration balance and stability and improving the pure tone, distortion and swing performance of the vibrating diaphragm 10.
Preferably, the folding ring part 2 includes a plurality of first connection portions 2310 respectively located on the folding ring upper surface 21 and spaced from each other, and a plurality of second connection portions 2410 respectively located on the folding ring lower surface 22 and spaced from each other; each first connection portion 2310 connects two adjacent upper feature patterns 231, that is, one first connection portion 2310 is arranged in a gap space between every two adjacent upper feature patterns 231, and the area of the first connection portion 2310 projected along the thickness direction of the loop part 2 is equal to the area of the lower feature pattern 241 projected along the thickness direction of the loop part 2 opposite to the first connection portion 2310; each second connecting portion 2410 connects two adjacent lower feature patterns 241, that is, one second connecting portion 2410 is arranged in a gap space between every two adjacent lower feature patterns 241, and the area of the projection of the second connecting portion 2410 along the thickness direction of the annular folding portion 2 is equal to the area of the projection of the upper feature pattern 231 opposite to the second connecting portion 2410 along the thickness direction of the annular folding portion 2; through the above arrangement, the interval between the adjacent upper feature pattern 231 and the lower feature pattern 241 is effectively reduced, so that the overall arrangement of the plurality of upper feature patterns 231 and the plurality of lower feature patterns 241 is more compact, the rigidity and strength of the fillet (R angle) position of the diaphragm 21 are further improved, and the vibration balance and stability are further improved.
It should be noted that the structural form and the specific position of the upper feature pattern and the lower feature pattern are not limited, and they may be set according to the actual use situation, for example, in the present embodiment, in the upper pattern module 23 and the lower pattern module 24 which are arranged opposite to each other, the shape of the upper pattern module 23 is the same as that of the lower pattern module 24; further, the upper feature pattern 231 has a strip structure and spans the loop part 2, and the lower feature pattern 241 has a strip structure and spans the loop part 2.
Of course, the specific shape and structure of the upper pattern mold part 23 and the lower pattern mold part 24 are only an example, but not limited to the above example, and the object of the present invention can be achieved as long as the plurality of upper feature patterns 231 of the upper pattern mold part 23 and the plurality of lower feature patterns 241 of the lower pattern mold part 24 are arranged in a staggered manner.
The structure does not change the whole weight of the diaphragm 10 too much, and has no obvious influence on the performance of the resonant frequency F0, the sound pressure level SPL and the like. And the above-mentioned two-sided design of vibrating diaphragm 10 makes the book of the ring portion 2 encircle upper surface 21 and form a plurality of upper characteristic graph 231, it forms a plurality of lower characteristic graph 241 of arranging with a plurality of above-mentioned upper characteristic graph 231 respectively in a staggered way to roll over the ring lower surface 22, the design is nimble various, the structural strength of vibrating diaphragm can be improved to the adjustment that can be as required pertinence, the problem of R angle department folding easily when effectively improving vibrating diaphragm 10 vibration from top to bottom, the equilibrium and the stability of vibrating diaphragm 10 vibration have effectively been improved, its pure tone has been improved, the distortion and the problem of swaing, acoustic performance is more excellent.
In this embodiment, the diaphragm 10 is made of any one or more of silica gel, rubber, PEEK, and TPU. Preferably, the diaphragm 10 is an integrally formed structure.
The present invention provides the following four embodiments of the formation of the upper pattern mold part 23 and the lower pattern mold part 24:
implementation mode one
Referring to fig. 1, the front surface of the diaphragm 10 corresponds to the upper surface 21 of the edge. The upper feature patterns 231 of the upper pattern mold part 23 are respectively formed by the upper surface 21 of the corrugated rim protruding in the direction away from the lower surface 22 of the corrugated rim, that is, the upper feature patterns 231 are all in a convex edge structure crossing the corrugated rim part 2.
Referring to fig. 2, the back surface of the diaphragm 10 corresponds to the lower surface 22 of the edge. The lower feature patterns 241 of the lower pattern mold 24 are formed by recessing the edge lower surface 22 in a direction away from the edge upper surface 21, that is, the lower feature patterns 241 are all in a groove-like structure crossing the edge portion 2.
As shown in fig. 3 to 4, the plurality of upper feature patterns 231 located at the same rounded corner of the annular flange 2 are staggered with the plurality of lower feature patterns 241.
Second embodiment
Referring to fig. 5, the front surface of the diaphragm 210 corresponds to the upper surface 221 of the edge. The upper feature patterns 2231 of the upper pattern mold portion 223 are respectively formed by the upper surface 221 of the corrugated rim being recessed away from the lower surface 222 of the corrugated rim, that is, the upper feature patterns 2231 are all in a groove-like structure crossing over the corrugated rim portion (not shown).
Referring to fig. 6, the back surface of the diaphragm 210 corresponds to the lower surface 222 of the edge. The lower feature patterns 2241 of the lower pattern mold portion 224 are respectively formed by the lower surface 222 of the edge, protruding in a direction away from the upper surface 221 of the edge, that is, the lower feature patterns 2241 are all in a ridge structure crossing the edge.
As shown in fig. 7 to 8, the plurality of upper feature patterns 2231 and the plurality of lower feature patterns 2241 are respectively arranged in a staggered manner at the same round angle of the edge portion.
Third embodiment
Referring to fig. 9, the front surface of the diaphragm 310 corresponds to the upper surface 321 of the edge. The upper feature patterns 3231 of the upper pattern module 323 are respectively formed by protruding from the upper surface 321 of the corrugated rim towards a direction away from the lower surface 322 of the corrugated rim, that is, the upper feature patterns 3231 are all in a ridge structure crossing the corrugated rim portion (not shown).
Referring to fig. 10, the back surface of the diaphragm 310 corresponds to the lower surface 322 of the corrugated rim. The lower feature patterns 3241 of the lower pattern module 324 are respectively formed by protruding from the lower surface 322 of the corrugated rim towards a direction away from the upper surface 321 of the corrugated rim, that is, the lower feature patterns 3241 are all in a convex ridge structure crossing the corrugated rim.
As shown in fig. 11 to 12, a plurality of upper feature patterns 3231 and a plurality of lower feature patterns 3241 located at the same round corner of the edge portion are arranged in a staggered manner.
Embodiment IV
Fig. 13 shows the front surface of the diaphragm 410, which corresponds to the upper surface 421 of the edge. The upper feature patterns 4231 of the upper pattern mold part 423 are respectively formed by the upper surface 421 of the corrugated rim being concave towards the lower surface 422 of the corrugated rim, that is, the upper feature patterns 4231 are all in a groove-like structure crossing the corrugated rim part (not shown).
Referring to fig. 14, the back surface of the diaphragm 410 corresponds to the lower surface 422 of the edge. The lower feature patterns 4241 of the lower pattern mold part 424 are respectively formed by the lower edge surface 422 of the corrugated rim being concave towards the upper edge surface 421 of the corrugated rim, that is, the lower feature patterns 4241 are all in a groove-like structure crossing the corrugated rim part.
As shown in fig. 15 to 16, a plurality of upper feature patterns 4231 and a plurality of lower feature patterns 4241 located at the same round angle of the edge portion are staggered with each other.
Referring to fig. 17, the present invention provides a sound generating device 100, wherein the sound generating device 100 includes the diaphragm 10.
Specifically, the sound production device 100 includes a frame 20, the diaphragm 10 fixedly supported on the frame 20, a voice coil 30 for driving the diaphragm 10 to vibrate and produce sound, and a magnetic circuit system 40 fixed on the frame 20.
The frame 20 is used for fixedly supporting the diaphragm 10 and the magnetic circuit system 40.
The voice coil 30 is fixed to the diaphragm 10, and the voice coil 30 is electrified to generate an electric field and the magnetic circuit system 40 generates a magnetic field to jointly act to form an electromagnetic field, so that the voice coil 30 repeatedly moves up and down, and the diaphragm 10 is driven by the voice coil 30 to vibrate and sound.
Compared with the prior art, the utility model provides a vibrating diaphragm sets up the upper graph mould portion that protrusion or sunken formation formed at the book ring upper surface of its book ring portion and sets up the lower graph mould portion that protrusion or sunken formation formed at the book ring lower surface, upper graph mould portion includes along a plurality of upper characteristic graphics that the direction interval of encircleing of book ring portion set up, lower graph mould portion includes along a plurality of lower characteristic graphics that the direction interval of encircleing of book ring portion set up; go up the characteristic pattern along the projection of book ring portion thickness direction with the characteristic pattern is followed down the projection of book ring portion thickness direction does not have overlapping portion, can improve the structural strength of vibrating diaphragm as required with the pertinence adjustment, the problem that R angle department is discounted easily when improving the vibrating diaphragm and vibrating from top to bottom, when this vibrating diaphragm applies to the sound production device, has effectively improved the equilibrium and the stability of vibrating diaphragm vibration, has improved the pure tone, the distortion and the rocking of sound production device for the acoustic performance of sound production device is more excellent.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.
Claims (10)
1. A diaphragm comprises a central part and a corrugated ring part which extends from the central part and is arranged around the central part, wherein the corrugated ring part comprises a corrugated ring upper surface and a corrugated ring lower surface opposite to the corrugated ring upper surface; and the projection of the upper characteristic pattern along the thickness direction of the corrugated rim part and the projection of the lower characteristic pattern along the thickness direction of the corrugated rim part have no overlapping part.
2. The diaphragm of claim 1, wherein the plurality of upper feature patterns are arranged in a fan shape, and the plurality of lower feature patterns are arranged in a fan shape.
3. The diaphragm of claim 2, wherein the flexure portion includes a plurality of first connecting portions respectively located on the upper surface of the flexure and spaced from each other, and a plurality of second connecting portions respectively located on the lower surface of the flexure and spaced from each other; each first connecting part is connected with two adjacent upper feature patterns, and the area of the projection of the first connecting part along the thickness direction of the folded ring part is equal to the area of the projection of the lower feature pattern, which is arranged opposite to the first connecting part, along the thickness direction of the folded ring part; each second connecting part is connected with two adjacent lower characteristic patterns, and the area of the projection of the second connecting part along the thickness direction of the folded ring part is equal to the area of the projection of the upper characteristic pattern, which is opposite to the second connecting part, along the thickness direction of the folded ring part.
4. The diaphragm of claim 2, wherein the bending portion has a rounded rectangular structure, the upper pattern portion includes four rounded corners and is located at the bending portion, and the lower pattern portion includes four rounded corners and is located at the bending portion.
5. The diaphragm of claim 4, wherein the upper pattern part is formed by the upper surface of the edge protruding away from the lower surface of the edge; the lower pattern die part is formed by the fact that the lower surface of the folding ring is sunken towards the direction of the upper surface of the folding ring.
6. The diaphragm of claim 4, wherein the upper pattern mold portion is formed by the upper surface of the edge being concave toward the lower surface of the edge; the lower pattern die part is formed by the protrusion of the lower surface of the folding ring towards the direction far away from the upper surface of the folding ring.
7. The diaphragm of claim 4, wherein the upper pattern part is formed by the upper surface of the edge protruding away from the lower surface of the edge; the lower pattern die part is formed by the protrusion of the lower surface of the folding ring towards the direction far away from the upper surface of the folding ring.
8. The diaphragm of claim 4, wherein the upper pattern mold portion is formed by the upper surface of the edge being concave toward the lower surface of the edge; the lower pattern die part is formed by the fact that the lower surface of the folding ring is sunken towards the direction of the upper surface of the folding ring.
9. The diaphragm of any one of claims 5 to 8, wherein the upper feature pattern has a strip-shaped structure and spans across the folded ring portion; the lower characteristic pattern is of a strip-shaped structure and spans the folded ring part.
10. A sound production device comprises a basin frame, a vibrating diaphragm fixedly supported on the basin frame and a voice coil for driving the vibrating diaphragm to vibrate, and is characterized in that the vibrating diaphragm is the vibrating diaphragm according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922487845.9U CN211959518U (en) | 2019-12-30 | 2019-12-30 | Vibrating diaphragm and sound production device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922487845.9U CN211959518U (en) | 2019-12-30 | 2019-12-30 | Vibrating diaphragm and sound production device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211959518U true CN211959518U (en) | 2020-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922487845.9U Expired - Fee Related CN211959518U (en) | 2019-12-30 | 2019-12-30 | Vibrating diaphragm and sound production device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211959518U (en) |
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2019
- 2019-12-30 CN CN201922487845.9U patent/CN211959518U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201117 Termination date: 20211230 |
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| CF01 | Termination of patent right due to non-payment of annual fee |