CN204119502U - Sound-producing device - Google Patents
Sound-producing device Download PDFInfo
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- CN204119502U CN204119502U CN201420518605.5U CN201420518605U CN204119502U CN 204119502 U CN204119502 U CN 204119502U CN 201420518605 U CN201420518605 U CN 201420518605U CN 204119502 U CN204119502 U CN 204119502U
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Abstract
The utility model discloses a kind of sound-producing device, comprise magnetic circuit system, the auxiliary system of vibrational system and the fixing described magnetic circuit system of collecting and vibrational system; Described magnetic circuit system is provided with magnetic gap, described vibrational system comprises vibrating diaphragm and the voice coil loudspeaker voice coil fixing with described vibrating diaphragm, described voice coil loudspeaker voice coil is arranged in described magnetic gap, and: described vibrating diaphragm comprises vibrating diaphragm body and the coat of metal, and the described coat of metal is arranged at described vibrating diaphragm body surface.The utility model sound-producing device, diaphragm surface arranges the coat of metal while guarantee vibrating diaphragm compliance, can increase the rigidity of vibrating diaphragm, avoids the tonequality that causes because vibrating diaphragm is softer poor, effectively improves sound-producing device tonequality.Therefore, the utility model sound-producing device can balance tonequality and acoustical behavior, has tonequality good, the advantage that acoustical behavior is high.
Description
Technical field
The utility model relates to electroacoustic field, especially relates to a kind of tonequality good, the sound-producing device that acoustical behavior is high.
Background technology
Along with the expansion in consumer electronics market, the consumer electronics products such as a large amount of mobile phone, notebook computer are extensively promoted, and sound-producing device, as the main devices in acoustic element important in consumer electronics product and Headphone device, has demand widely.Along with the raising that people require consumer electronics product tonequality, sound-producing device performance also more and more receives the concern of people.
Sound-producing device generally includes magnetic circuit system, the auxiliary system of vibrational system and the fixing magnetic circuit system of collecting and vibrational system.Magnetic circuit system comprises magnet, frame and washer, is provided with magnetic gap between magnet and frame; The voice coil loudspeaker voice coil that vibrational system comprises vibrating diaphragm and is fixedly installed with vibrating diaphragm, voice coil loudspeaker voice coil is arranged in magnetic circuit system magnetic gap.When extraneous drive current enters voice coil loudspeaker voice coil, the voice coil loudspeaker voice coil be arranged in magnetic gap is subject to the driving of Lorentz force and up-down vibration, and voice coil loudspeaker voice coil up-down vibration drives diaphragm oscillations, and diaphragm oscillations instigates air vibration, thus sound-producing device is spoken.From the operation principle of sound-producing device, vibrating diaphragm is as main sound-generating element, and its material and performance directly affect sound-producing device performance.In existing sound-producing device design process, in order to ensure that the resonance frequency of sound-producing device is enough low, all-bottom sound arbitrarily downgrades sufficiently high acoustical behavior, the material that vibrating diaphragm material selection compliance is larger, the material that compliance is larger is usually thinner, thus cause the vibrating diaphragm of traditional structure sound-producing device softer, rigidity is not enough, affects the tonequality of sound-producing device; Cause sound-producing device lower tone.
Therefore, be necessary to propose a kind of improvement, to overcome traditional structure sound-producing device defect.
Utility model content
It is good that technical problem to be solved in the utility model is to provide a kind of tonequality, the sound-producing device that acoustical behavior is high.
To achieve these goals, the utility model sound-producing device is by the following technical solutions:
A kind of sound-producing device, comprises magnetic circuit system, the auxiliary system of vibrational system and the fixing described magnetic circuit system of collecting and vibrational system; Described magnetic circuit system is provided with magnetic gap, described vibrational system comprises vibrating diaphragm and the voice coil loudspeaker voice coil fixing with described vibrating diaphragm, described voice coil loudspeaker voice coil is arranged in described magnetic gap, and: described vibrating diaphragm comprises vibrating diaphragm body and the coat of metal, and the described coat of metal is arranged at described vibrating diaphragm body surface.
As the preferred technical scheme of one, the described coat of metal is arranged at the upper surface of described vibrating diaphragm body away from described voice coil loudspeaker voice coil.
As the preferred technical scheme of another kind, the described coat of metal is arranged at the lower surface of described vibrating diaphragm body near described voice coil loudspeaker voice coil.
As another preferred technical scheme, the described coat of metal comprises the first coating and the second coating, described first coating is arranged at the upper surface of described vibrating diaphragm body away from described voice coil loudspeaker voice coil, and described second coating is arranged at the lower surface of described vibrating diaphragm body near described voice coil loudspeaker voice coil.
As the preferred technical scheme of one, described metal layer thickness scope is 0.02um to 0.03um; As the preferred technical scheme of another kind, when the coat of metal is two-layer, the thickness of double layer of metal coating is identical, and its thickness range is 0.02um to 0.03um.
As the preferred technical scheme of one, the described coat of metal is the one in the nickel coat of metal and titanium coating.
The utility model sound-producing device, vibrating diaphragm comprises vibrating diaphragm body and the coat of metal, the coat of metal is arranged at the surface of vibrating diaphragm body, the coat of metal covers the surface of vibrating diaphragm body completely, can while guarantee vibrating diaphragm compliance, increase the rigidity of vibrating diaphragm, avoid the tonequality that causes because vibrating diaphragm is softer poor, effectively improve sound-producing device tonequality.Therefore, the utility model sound-producing device can balance tonequality and acoustical behavior, improves traditional structure sound-producing device acoustical behavior good, but the defect that tonequality is poor, there is tonequality good, the advantage that acoustical behavior is high.
In actual applications, the coat of metal can be arranged in the upper surface of vibrating diaphragm body, lower surface and upper and lower surface, all can ensure vibrating diaphragm compliance, improves vibrating diaphragm rigidity, thus improves sound-producing device tonequality.Certainly, the thickness of the coat of metal can have an impact to the acoustical behavior of sound-producing device, therefore, in actual applications, after balancing acoustic characteristic and tonequality, can adopt the coat of metal that 0.02um to 0.03um is thick.The coat of metal can adopt nickel plating and titanizing, also can adopt other coats of metal, all can improve vibrating diaphragm rigidity.
Accompanying drawing explanation
Fig. 1 is the utility model sound-producing device first execution mode exploded view;
Fig. 2 is the cutaway view of sound-producing device shown in Fig. 1;
Fig. 3 is the utility model sound-producing device first execution mode diaphragm structure cutaway view;
Fig. 4 is I magnified partial view in Fig. 3;
Fig. 5 is the utility model sound-producing device second execution mode diaphragm structure cutaway view;
Fig. 6 is II magnified partial view in Fig. 5;
Fig. 7 is the utility model sound-producing device the 3rd execution mode diaphragm structure cutaway view;
Fig. 8 is III magnified partial view in Fig. 7.
Embodiment
Below in conjunction with accompanying drawing, describe the utility model content in detail:
Embodiment one:
The utility model sound-producing device, involving vibrations system, magnetic circuit system and auxiliary system, as shown in Figures 1 and 2, vibrational system comprises vibrating diaphragm 2, with the voice coil loudspeaker voice coil 3 that vibrating diaphragm 2 is fixing; Magnetic circuit system comprises frame 5, is arranged at the magnet 41 in frame 5, and with the washer 42 that magnet 41 is fixing near vibrating diaphragm 2 side, be provided with magnetic gap between the structure that magnet 41 and washer 42 are fixed as one and frame 5, voice coil loudspeaker voice coil 3 is arranged in magnetic gap; Auxiliary system comprises shell 12 and the protecgulum 11 of the fixing magnetic circuit system of collecting and vibrational system, protecgulum 11 and shell 12 form the cavity of accommodating fixing magnetic circuit system and vibrational system, auxiliary system also comprises wiring board 6, wiring board 6 is electrically connected with the lead-in wire of voice coil loudspeaker voice coil 3, external electronic circuits and voice coil loudspeaker voice coil 3 are electrically coupled by wiring board 6, thus ensure that external drive electric current enters voice coil loudspeaker voice coil 3.When external drive electric current is entered in voice coil loudspeaker voice coil 3 by wiring board 6, being arranged at curent change in the voice coil loudspeaker voice coil 3 in magnetic gap makes voice coil loudspeaker voice coil 3 receive Lorentz force and up-down vibration, the structure that vibrating diaphragm 2 and voice coil loudspeaker voice coil 3 are fixed as one makes vibrating diaphragm 2 vibrate with voice coil loudspeaker voice coil 3 and vibrates, and air sounding is instigated in vibrating diaphragm 2 vibration.
Enough high in order to make that the resonance frequency of the utility model sound-producing device is enough low, all-bottom sound is arbitrarily downgraded, the material that the vibrating diaphragm 2 of the utility model sound-producing device adopts compliance higher, as shown in Figures 3 and 4, vibrating diaphragm 2 comprises vibrating diaphragm body 21 and the coat of metal 22, the vibrating diaphragm 2 of the present embodiment, the coat of metal 22 is arranged at the upper surface of vibrating diaphragm body 21 away from voice coil loudspeaker voice coil 3.The coat of metal 22 is arranged at vibrating diaphragm body 21 away from the upper surface of voice coil loudspeaker voice coil 3 by Vacuum Deposition technique and covers vibrating diaphragm body 21, the coat of metal 22 can while guarantee vibrating diaphragm body 21 compliance, increase the rigidity of vibrating diaphragm 2, avoid because vibrating diaphragm 2 is softer that sound-producing device tonequality that is that cause is poor, effectively improve sound-producing device tonequality.Therefore, the utility model sound-producing device can balance tonequality and acoustical behavior, improves the good but defect that tonequality is poor of traditional structure sound-producing device acoustical behavior, has tonequality good, the advantage that acoustical behavior is high.
In actual applications, in order to balance acoustic characteristic and tonequality, the thickness of the coat of metal 22 is preferably between 0.02um to 0.03um, when the thickness of the coat of metal 22 is between 0.02um to 0.03um, the compliance of vibrating diaphragm 2 is better, ensure rigidity, acoustical behavior and the tonequality of sound-producing device are better balanced simultaneously, ensure that sound-producing device has good tonequality and higher acoustical behavior simultaneously.
The coat of metal 22 can be the nickel coat of metal, can also be able to be also other coats of metal for titanium coating, neither affect the utility model sound-producing device advantage applies.
Embodiment two:
The present embodiment is identical with embodiment one sound-producing device structure, unlike vibrating diaphragm 3 structure.
As shown in Figures 5 and 6, the present embodiment sound-producing device vibrating diaphragm 2 comprises vibrating diaphragm body 21 and the coat of metal 22, and vibrating diaphragm body 21 is the material that compliance is higher, and the coat of metal 22 is arranged at the lower surface of vibrating diaphragm body 21 near voice coil loudspeaker voice coil.The coat of metal 22 is arranged at vibrating diaphragm body 21 near the lower surface of voice coil loudspeaker voice coil by Vacuum Deposition technique and covers vibrating diaphragm body 21, the coat of metal 22 can while guarantee vibrating diaphragm body 21 compliance, increase the rigidity of vibrating diaphragm 2, avoid because vibrating diaphragm 2 is softer that sound-producing device tonequality that is that cause is poor, effectively improve sound-producing device tonequality.Therefore, the utility model sound-producing device can balance tonequality and acoustical behavior, improves the good but defect that tonequality is poor of traditional structure sound-producing device acoustical behavior, has tonequality good, the advantage that acoustical behavior is high.
In actual applications, in order to balance acoustic characteristic and tonequality, the thickness of the coat of metal 22 is preferably between 0.02um to 0.03um, when the thickness of the coat of metal 22 is between 0.02um to 0.03um, the compliance of vibrating diaphragm 2 is better, ensure rigidity, acoustical behavior and the tonequality of sound-producing device are better balanced simultaneously, ensure that sound-producing device has good tonequality and higher acoustical behavior simultaneously.
The coat of metal 22 can be the nickel coat of metal, can also be able to be also other coats of metal for titanium coating, neither affect the utility model sound-producing device advantage applies.
Embodiment three:
The present embodiment is identical with embodiment one sound-producing device structure, unlike vibrating diaphragm 3 structure.
As shown in Figures 7 and 8, the present embodiment vibrating diaphragm 2 comprises the higher vibrating diaphragm body 21 of compliance, is arranged at vibrating diaphragm body 21 away from the first coat of metal 22a of the upper surface of voice coil loudspeaker voice coil and be arranged at second coat of metal 22b of vibrating diaphragm body 21 on the lower surface of voice coil loudspeaker voice coil.The coat of metal of vibrating diaphragm body 21 upper and lower surface is arranged at by Vacuum Deposition technique, can while guarantee vibrating diaphragm body 21 compliance, increase the rigidity of vibrating diaphragm 2, avoid because vibrating diaphragm 2 is softer that sound-producing device tonequality that is that cause is poor, effectively improve sound-producing device tonequality.Therefore, the utility model sound-producing device can balance tonequality and acoustical behavior, improves the good but defect that tonequality is poor of traditional structure sound-producing device acoustical behavior, has tonequality good, the advantage that acoustical behavior is high.
In actual applications, in order to balance acoustic characteristic and tonequality, first coat of metal 22a is identical with the second coat of metal 22b thickness, be the arbitrary thickness between 0.02um to 0.03um, two parts coat of metal under this thickness range ensures vibrating diaphragm 2 rigidity preferably at guarantee vibrating diaphragm 2 compliance simultaneously, thus the acoustical behavior of sound-producing device and tonequality are better balanced, ensure that sound-producing device has good tonequality and higher acoustical behavior simultaneously.
First coat of metal 22a and the second coat of metal 22b can be the nickel coat of metal, can also be able to be also other coats of metal for titanium coating, neither affect the utility model sound-producing device advantage applies.
These are only the utility model case study on implementation, be not limited to the utility model, as long as those of ordinary skill in the art modify or change according to the equivalence that the utility model institute disclosure is done, all should include in the protection range recorded in claims.
Claims (7)
1. a sound-producing device, comprises magnetic circuit system, the auxiliary system of vibrational system and the fixing described magnetic circuit system of collecting and vibrational system; Described magnetic circuit system is provided with magnetic gap, described vibrational system comprises vibrating diaphragm and the voice coil loudspeaker voice coil fixing with described vibrating diaphragm, described voice coil loudspeaker voice coil is arranged in described magnetic gap, it is characterized in that: described vibrating diaphragm comprises vibrating diaphragm body and the coat of metal, and the described coat of metal is arranged at described vibrating diaphragm body surface.
2. sound-producing device according to claim 1, is characterized in that: the described coat of metal is arranged at the upper surface of described vibrating diaphragm body away from described voice coil loudspeaker voice coil.
3. sound-producing device according to claim 1, is characterized in that: the described coat of metal is arranged at the lower surface of described vibrating diaphragm body near described voice coil loudspeaker voice coil.
4. sound-producing device according to claim 1, it is characterized in that: the described coat of metal comprises the first coating and the second coating, described first coating is arranged at the upper surface of described vibrating diaphragm body away from described voice coil loudspeaker voice coil, and described second coating is arranged at the lower surface of described vibrating diaphragm body near described voice coil loudspeaker voice coil.
5. the sound-producing device according to the arbitrary claim of claims 1 to 3, is characterized in that: described metal layer thickness is 0.02um to 0.03um.
6. sound-producing device according to claim 4, is characterized in that: described first coating is identical with described second thickness of coating, is 0.02um to 0.03um.
7. sound-producing device according to claim 1, is characterized in that: the described coat of metal is the one in the nickel coat of metal and titanium coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420518605.5U CN204119502U (en) | 2014-09-06 | 2014-09-06 | Sound-producing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420518605.5U CN204119502U (en) | 2014-09-06 | 2014-09-06 | Sound-producing device |
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| Publication Number | Publication Date |
|---|---|
| CN204119502U true CN204119502U (en) | 2015-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420518605.5U Active CN204119502U (en) | 2014-09-06 | 2014-09-06 | Sound-producing device |
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| CN (1) | CN204119502U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107071665A (en) * | 2017-04-28 | 2017-08-18 | 北京欧意智能科技有限公司 | Vibrating diaphragm and comprehensive sounding loudspeaker |
| CN107534811A (en) * | 2015-07-22 | 2018-01-02 | 谷歌有限责任公司 | Apparatus and method for the high-performance electric magnetic speaker based on individual layer |
-
2014
- 2014-09-06 CN CN201420518605.5U patent/CN204119502U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107534811A (en) * | 2015-07-22 | 2018-01-02 | 谷歌有限责任公司 | Apparatus and method for the high-performance electric magnetic speaker based on individual layer |
| CN107534811B (en) * | 2015-07-22 | 2020-08-11 | 谷歌有限责任公司 | Apparatus for high performance electromagnetic speaker based on single layer |
| CN107071665A (en) * | 2017-04-28 | 2017-08-18 | 北京欧意智能科技有限公司 | Vibrating diaphragm and comprehensive sounding loudspeaker |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Address after: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee after: Goertek Inc. Address before: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee before: Goertek Inc. |