CN219499525U - Vibrating diaphragm and loudspeaker - Google Patents
Vibrating diaphragm and loudspeaker Download PDFInfo
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- CN219499525U CN219499525U CN202320386120.4U CN202320386120U CN219499525U CN 219499525 U CN219499525 U CN 219499525U CN 202320386120 U CN202320386120 U CN 202320386120U CN 219499525 U CN219499525 U CN 219499525U
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- dome
- diaphragm
- voice coil
- hole
- loudspeaker
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- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model provides a vibrating diaphragm and a loudspeaker, comprising a folded ring part, a flat part and a dome; the folded ring part is arranged around the flat part; at least one ball top is arranged on one side of the flattening part; and a through hole is formed in the dome. Through set up the through-hole at the top of sphere for the produced hot air of speaker inside voice coil loudspeaker voice coil can distribute through the through-hole fast, and the cold air of top of sphere opposite side can pass the through-hole of top of sphere through the vibration of vibrating diaphragm and carry out quick replenishment, has accelerated the velocity of flow of air through the top of sphere, the effectual heat dispersion who improves the speaker.
Description
Technical Field
The utility model relates to the technical field of electroacoustic technology, in particular to a vibrating diaphragm and a loudspeaker.
Background
The loudspeaker is a transducer for converting electric signals into acoustic signals, and is widely applied to electronic equipment such as mobile phones, notebook computers, music portable players and the like. With the updating of electronic products and the continuous development of corresponding technologies, the performance requirements of people on speakers are higher and higher. In order to improve the sensitivity of the speaker, the rated power of the corresponding speaker module is larger and larger, so that the heat generated by the voice coil in the speaker is larger and larger, but the internal structure of the speaker is small, the space is closed, and the problem of unsmooth heat dissipation often exists. When the heat gathered in the loudspeaker is too high, the vibration system and the magnetic circuit system in the loudspeaker are easily influenced, so that the loudspeaker has poor performance and even cannot work normally.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: the vibrating diaphragm and the loudspeaker are provided, and the heat dissipation performance of the loudspeaker is improved.
In order to solve the technical problems, the utility model adopts the following technical scheme:
a vibrating diaphragm comprises a folded ring part, a flat part and a dome;
the folded ring part is arranged around the flat part;
at least one ball top is arranged on one side of the flattening part;
and a through hole is formed in the dome.
Further, the number of the through holes comprises a plurality of through holes, and the through holes are arranged on the top of the ball in an array.
Further, the array uniformly covers the dome.
Further, the through hole is circular or polygonal.
Further, the thermal conductivity of the flattening portion is more than 0.3W/mK.
Further, the material of the flattening part is graphene, copper or aluminum.
In order to solve the technical problems, the utility model adopts another technical scheme that:
a loudspeaker comprises a voice coil and the vibrating diaphragm, wherein the vibrating diaphragm is arranged on one side of the voice coil.
Further, the dome of the diaphragm is disposed on one side of the flat portion of the diaphragm, which is close to the voice coil.
The utility model has the beneficial effects that: through set up the through-hole at the top of sphere for the produced hot air of speaker inside voice coil loudspeaker voice coil can distribute through the through-hole fast, and the cold air of top of sphere opposite side can pass the through-hole of top of sphere through the vibration of vibrating diaphragm and carry out quick replenishment, has accelerated the velocity of flow of air through the top of sphere, the effectual heat dispersion who improves the speaker.
Drawings
Fig. 1 is a schematic structural diagram of a diaphragm with a single-layer dome according to an embodiment of the present utility model;
FIG. 2 is a cross-sectional view of a single-layer dome diaphragm according to an embodiment of the present utility model along A-A;
fig. 3 is a schematic structural diagram of a detail a of a diaphragm with a single-layer dome according to an embodiment of the present utility model;
fig. 4 is a schematic structural diagram of another diaphragm with a single-layer dome according to an embodiment of the present utility model;
fig. 5 is a schematic structural diagram of a detail a of a diaphragm with a single-layer dome according to another embodiment of the present utility model;
fig. 6 is a schematic structural diagram of a diaphragm with square through holes according to an embodiment of the present utility model;
fig. 7 is a schematic structural diagram of a diaphragm with a double-layer dome according to an embodiment of the present utility model;
fig. 8 is a schematic structural diagram of a detail a of a diaphragm with a double-layer dome according to an embodiment of the present utility model;
fig. 9 is a schematic structural diagram of a speaker with a single-layer dome according to an embodiment of the present utility model;
fig. 10 is a schematic structural diagram of another speaker with a single-layer dome according to an embodiment of the present utility model;
fig. 11 is a schematic structural diagram of a speaker with a double-layer dome according to an embodiment of the present utility model;
description of the reference numerals:
1. a vibrating diaphragm; 11. a ring folding part; 12. a flattening part; 13. a dome; 1301. a first dome; 1302. a second dome; 14. a through hole; 15. an outer fixing part; 2. a speaker; 21. and a voice coil.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present utility model in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
Referring to fig. 1, an embodiment of the present utility model provides a diaphragm, including a ring portion, a flat portion, and a dome;
the folded ring part is arranged around the flat part;
at least one ball top is arranged on one side of the flattening part;
and a through hole is formed in the dome.
From the above description, the beneficial effects of the utility model are as follows: through set up the through-hole at the top of sphere for the produced hot air of speaker inside voice coil loudspeaker voice coil can distribute through the through-hole fast, and the cold air of top of sphere opposite side can pass the through-hole of top of sphere through the vibration of vibrating diaphragm and carry out quick replenishment, has accelerated the velocity of flow of air through the top of sphere, the effectual heat dispersion who improves the speaker.
Further, the number of the through holes comprises a plurality of through holes, and the through holes are arranged on the top of the ball in an array.
From the above description, the more the number of through holes, the faster the air flow velocity at two sides of the dome, so as to enhance the heat dissipation performance, and the dome is disposed on the leveling portion, and when the dome is bonded to the leveling portion, the through holes can serve as glue containing grooves, so as to improve the fixing effect of the dome and the leveling portion, and improve the reliability margin.
Further, the array uniformly covers the dome.
From the above description, the array uniformly covers the ball top, so that the through holes can cover the flat part to the greatest extent, and the bonding effect of the ball top and the flat part is enhanced.
Further, the through hole is circular or polygonal.
As can be seen from the above description, the through holes with different shapes can isolate the interference of other wave signals while satisfying the heat dissipation effect of the substrate layer.
Further, the thermal conductivity of the flattening portion is more than 0.3W/mK.
As can be seen from the above description, the flat portion with a proper thermal conductivity is selected as the heat dissipation layer to assist the through hole structure of the dome, thereby improving the heat dissipation efficiency.
Further, the material of the flattening part is graphene, copper or aluminum.
From the above description, the flat portion is made of a material with a higher thermal conductivity coefficient, so as to assist the dome to dissipate heat, and ensure the tightness of the vibrating diaphragm system.
Referring to fig. 9, another embodiment of the present utility model provides a speaker, including a voice coil and a diaphragm, where the diaphragm is disposed at one side of the voice coil.
Further, the dome of the diaphragm is disposed on one side of the flat portion of the diaphragm, which is close to the voice coil.
From the above description, the beneficial effects of the utility model are as follows: through set up the through-hole at the top of sphere for the produced hot air of speaker inside voice coil loudspeaker voice coil can distribute through the through-hole fast, and the cold air of top of sphere opposite side can pass the through-hole of top of sphere through the vibration of vibrating diaphragm and carry out quick replenishment, has accelerated the velocity of flow of air through the top of sphere, the effectual heat dispersion who improves the speaker. In addition, when the dome is set up in the side that the leveling portion is close to the voice coil, the through-hole that the dome covered the voice coil can be equally regarded as holding the gluey groove, when voice coil and leveling portion bond, strengthens the fixed effect of two, improves the reliability of dome.
The vibrating diaphragm and the loudspeaker provided by the utility model can be used for electronic terminals with larger power and higher requirements on the radiating performance of the loudspeaker, so that the radiating performance of the loudspeaker is improved, and the sounding performance of the loudspeaker is ensured, and the following description is provided by a specific embodiment:
referring to fig. 1 to 6, a first embodiment of the present utility model is as follows:
a diaphragm 1 includes a folded ring portion 11, a flat portion 12, and a dome 13; the folded ring part 11 is arranged around the flat part 12; at least one dome 13 is disposed on one side of the flat portion 12; the dome 13 is provided with a through hole 14.
Wherein the flat portion 12 is also called an inner fixing portion of the diaphragm 1; in an alternative embodiment, the flat portion 12 is hollowed out, the position of the hollowed-out portion is changed correspondingly according to different speaker types, and the through hole 14 of the dome 13 is matched with the flat portion, so that the quality of the speaker diaphragm system can be reduced, and the performance sensitivity of the speaker is improved. In this embodiment, since the size of the vibrating diaphragm corresponding to the micro-speaker is smaller, the hollowed area of the leveling part 12 is not large, so that the effect of reducing the quality of the vibrating diaphragm system cannot be achieved, and the leveling part 12 is not hollowed; however, at this time, the flattening portion 12 is used as a heat dissipation layer, and the heat conduction area of air and the dome 13 can be increased in the non-hollowed state of the flattening portion 12, so that the heat dissipation effect of the dome 13 is further improved.
In an alternative embodiment, the dome 13 is a composite structure having a thickness of 0.12mm; the composite structure comprises a first aluminum metal layer, a foaming body and a second aluminum metal layer which are sequentially laminated.
The vibrating diaphragm 1 further comprises an external fixing portion 15, and the external fixing portion 15 is arranged around the folded ring portion 11; the outer fixing portion 15 is used for connecting a support system of a speaker.
Specifically, the number of the through holes 14 includes a plurality of through holes 14, and the through holes 14 are arranged in an array on the dome 13. And the array uniformly covers the dome 13. In an alternative embodiment, the area of the dome 13 is the same as that of the flat portion 12, and since the flat portion 12 is not hollowed out, and the array of through holes 14 uniformly covers the dome 13, when the flat portion 12 and the dome 13 are bonded through the glue layer, the through holes 14 on the dome 13 can be used as glue containing grooves of glue, so that the residence time of the glue is prolonged, and meanwhile, the contact area of the glue and the flat portion 12 is increased, so that the bonding effect of the flat portion 12 and the dome 13 is enhanced, and the reliability of the dome 13 is improved.
In an alternative embodiment, the closer the dome 13 is to the area of the speaker coil 21, the denser the arrangement of the through holes 14. Because the voice coil 21 in the speaker is the main heat generating source in the acoustic cavity, the higher the heat near the voice coil 21, the more the through holes 14 near the voice coil 21, the more advantageous the heat transfer into the front cavity of the speaker.
In an alternative embodiment, the spacing between the through holes 14 is not less than 0.2mm, and the diameter of the through holes 14 is greater than 0.2mm; if the interval between the through holes 14 is too small, the strength of the dome is affected, thereby affecting the vibration performance of the dome; too small a diameter of the through-hole 14 is detrimental to the production and shaping of the dome.
The dome 13 may be disposed not only on a side of the flat portion 12 away from the voice coil 21, but also on a side of the flat portion 12 close to the voice coil 21, and in this case, the through hole 14 on the dome 13 may enhance the adhesion effect among the flat portion 12, the dome 13 and the voice coil 21.
Wherein the shape of the through hole 14 may be circular or polygonal. Referring to fig. 6, in an alternative embodiment, the through hole 14 is square in shape.
Specifically, the thermal conductivity of the flattening portion 12 is greater than 0.3W/mK. Wherein, the material of the flattening portion 12 is one of graphene, copper or aluminum.
Referring to fig. 7 and 8, a second embodiment of the present utility model is as follows:
a diaphragm 1 is different from the first embodiment in that: the number of the dome 13 is two.
The first dome 1301 is disposed on the upper surface of the second dome 1302, and the through holes 14 on the first dome 1301 and the second dome 1302 are in one-to-one correspondence to form deeper through holes.
Referring to fig. 9 to 11, a third embodiment of the present utility model is as follows:
a loudspeaker 2 includes a voice coil 21 and a diaphragm 1 according to the first or second embodiments, where the diaphragm 1 is disposed on one side of the voice coil 21.
In an alternative embodiment, the dome 13 of the diaphragm 1 is disposed on a side of the flat portion 12 of the diaphragm 1 remote from the voice coil 21.
In an alternative embodiment, the dome 13 of the diaphragm 1 is disposed on a side of the flat portion 12 of the diaphragm 1 near the voice coil 21. When the ball top 13, the flat part 12 and the voice coil 21 are bonded through the glue layer, the through hole 14 on the ball top 13 is used as a glue containing groove, glue is led into the joint of the flat part 12 and the ball top 13 and the joint of the ball top 13 and the voice coil 21, the bonding area between the three is increased, and the bonding effect is enhanced.
In summary, according to the vibrating diaphragm and the loudspeaker provided by the utility model, the through hole is formed in the dome, so that hot air generated by the voice coil in the loudspeaker can be rapidly dispersed through the through hole, and cold air at the other side of the dome can be rapidly supplemented through the through hole of the dome by vibrating the vibrating diaphragm, so that the flow velocity of the air passing through the dome is accelerated, and the heat dissipation performance of the loudspeaker is effectively improved. Meanwhile, the leveling part of the vibrating diaphragm is made of a material with higher heat conductivity coefficient, and after the dome is bonded, the leveling part can be used as a heat dissipation layer, so that the heat dissipation efficiency is improved, and the original structure and performance of the loudspeaker are not affected. In addition, when the dome is set up in the side that the leveling portion is close to the voice coil, the through-hole that the dome covered the voice coil can be equally regarded as holding the gluey groove, when voice coil and leveling portion bond, strengthens the fixed effect of two, improves the reliability of dome.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent changes made by the specification and drawings of the present utility model, or direct or indirect application in the relevant art, are included in the scope of the present utility model.
Claims (8)
1. The vibrating diaphragm is characterized by comprising a folded ring part, a flat part and a dome;
the folded ring part is arranged around the flat part;
at least one ball top is arranged on one side of the flattening part;
and a through hole is formed in the dome.
2. The diaphragm of claim 1, wherein the number of through holes includes a plurality of through holes, and wherein the through holes are arranged in an array on the dome.
3. A diaphragm according to claim 2, wherein the array uniformly covers the dome.
4. A diaphragm according to claim 1, wherein the through-hole has a circular or polygonal shape.
5. A diaphragm according to claim 1, wherein the flattening portion has a thermal conductivity greater than 0.3W/m-K.
6. The diaphragm of claim 5, wherein the flattening portion is made of graphene, copper, or aluminum.
7. A loudspeaker comprising a voice coil and a diaphragm according to any one of claims 1 to 6, said diaphragm being arranged on one side of said voice coil.
8. The loudspeaker of claim 7, wherein the dome of the diaphragm is disposed on a side of the flat portion of the diaphragm adjacent to the voice coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320386120.4U CN219499525U (en) | 2023-03-03 | 2023-03-03 | Vibrating diaphragm and loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320386120.4U CN219499525U (en) | 2023-03-03 | 2023-03-03 | Vibrating diaphragm and loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219499525U true CN219499525U (en) | 2023-08-08 |
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ID=87512473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320386120.4U Active CN219499525U (en) | 2023-03-03 | 2023-03-03 | Vibrating diaphragm and loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219499525U (en) |
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2023
- 2023-03-03 CN CN202320386120.4U patent/CN219499525U/en active Active
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