CN101674517B - Acoustic generating device - Google Patents
Acoustic generating device Download PDFInfo
- Publication number
- CN101674517B CN101674517B CN200910192714A CN200910192714A CN101674517B CN 101674517 B CN101674517 B CN 101674517B CN 200910192714 A CN200910192714 A CN 200910192714A CN 200910192714 A CN200910192714 A CN 200910192714A CN 101674517 B CN101674517 B CN 101674517B
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- Prior art keywords
- voice coil
- sound
- producing device
- magnetic core
- coil loudspeaker
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The embodiment of the invention discloses an acoustic generating device, comprising a sealing chamber, a voice coil and a lead wire; the voice coil is composed of surrounding lead wires and is arranged in the sealing chamber; the lead wire is connected with the voice coil and is led out from a lead wire hole on the sealing chamber; the sealing chamber is fixed on a machine shell of electrical equipment by a fastener, and the voice coil is connected into an audio-frequency electrical signal of the electrical equipment by the lead wire. By adopting the embodiment of the invention, the acoustic generating device is fixed on the machine shell of the electrical equipment, and sounding effect can be realized by utilizing resonance, the structure is simple and the reliability is high; in addition, a sounding hole does not need to be arranged on the machine shell of the electrical equipment, thereby not affecting appearance of the electrical equipment.
Description
Technical field
The present invention relates to a kind of sound generating apparatus, particularly a kind of sound-producing device that utilizes resonance to realize out sound effective value.
Background technology
At present, in existing electric equipment products, its sound-producing device operated by rotary motion is in the inside of body, and phonate hole is set on housing, so that the diffusion of sound wave.Yet, on housing, design phonate hole, destroyed the integral uniform property of outward appearance, influenced the presentation quality of product, on tv product, large-area phonate hole Mold Making is complicated, and fragile especially, and infringement back maintenance cost is high.
Summary of the invention
The embodiment of the invention proposes a kind of sound-producing device, utilizes resonance to realize out sound effective value, and simple in structure, reliability is high.
The embodiment of the invention provides a kind of sound-producing device, comprises seal chamber, voice coil loudspeaker voice coil and lead;
Said voice coil loudspeaker voice coil is by forming around lead, and places said seal chamber inner;
Said lead is connected with said voice coil loudspeaker voice coil, and draws the wire guide from said seal chamber;
Said seal chamber is fixed on through securing member on the casing of electric equipment, and said voice coil loudspeaker voice coil inserts the audio electrical signal of electric equipment through said lead;
Said sound-producing device also comprises magnetic core; The mid portion of said magnetic core is a cylindrical structure, and extends into cone to two ends, and double cone body and cylinder are on same axial line;
Said voice coil loudspeaker voice coil is enclosed within the shell portion of said magnetic core, in said magnetic core is placed in said seal chamber;
The cylinder diameter of said magnetic core mid portion is less than the diameter of said voice coil loudspeaker voice coil, and the cone diameter at said magnetic core two ends is greater than the diameter of said voice coil loudspeaker voice coil.
Embodiment of the present invention has following beneficial effect:
The sound-producing device that the embodiment of the invention provides is placed in voice coil loudspeaker voice coil in the seal chamber, and the sealing cavity is installed on the casing of electric equipment through securing member, and seal chamber is provided with wire guide, and the lead that is connected with voice coil loudspeaker voice coil is drawn from wire guide.The audio electrical signal of electric equipment is sent to voice coil loudspeaker voice coil via lead, makes voice coil loudspeaker voice coil produce vibration, and casing produces resonance under the drive of voice coil loudspeaker voice coil, and working medium radiation sound wave towards periphery, thus the conversion between realization electric energy and the acoustic energy.Adopt the embodiment of the invention, sound-producing device is fixed on the casing of electric equipment, utilize resonance can realize out sound effective value, simple in structure, reliability is high; And the casing of electric equipment need not to design phonate hole, does not influence the outward appearance of electric equipment.
Description of drawings
Fig. 1 is the structural representation of sound-producing device provided by the invention;
Fig. 2 is the structural representation of the voice coil loudspeaker voice coil of sound-producing device provided by the invention;
Fig. 3 is the sketch map of an application scenarios of sound-producing device provided by the invention.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Referring to Fig. 1, be the structural representation of sound-producing device provided by the invention.
This sound-producing device specifically comprises cavity 101, seal cover 102, voice coil loudspeaker voice coil 103, magnetic core 104 and lead 105; Wherein:
Voice coil loudspeaker voice coil 103 is by forming around lead, and it is socketed on the magnetic core 104, and in magnetic core 104 is placed in cavity 101.
Like Fig. 2, the mid portion of magnetic core 104 is a cylindrical structure, and extends into cone to two ends, and double cone body and cylinder are on same axial line.Voice coil loudspeaker voice coil 103 has been smeared a group of insulating varnish by the outside and has been formed around copper cash, and is enclosed within the shell portion of magnetic core 104.Wherein, the diameter of the shell portion of magnetic core 104 is less than the diameter of voice coil loudspeaker voice coil 103, and cone section diameter is then greater than the diameter of voice coil loudspeaker voice coil 103, so that voice coil loudspeaker voice coil 103 is placed in the middle part of magnetic core 104 reliably.
The two ends of voice coil loudspeaker voice coil 103 are connected with lead 105, and voice coil loudspeaker voice coil 103 is connected with outside audio electrical signal through lead 105.During practical implementation, require voice coil loudspeaker voice coil 103 and lead 105 to have good anti-low-and high-frequency vibration characteristics.
As shown in Figure 1, the center of cavity 101 enclose inside ends is provided with the connecting hole (not shown in figure 1), and corresponding, the center of seal cover 102 also is provided with connecting hole 108.The cone summit of a wherein end of magnetic core 104 is installed on the connecting hole of cavity 101 blind ends; The cone summit of the other end is installed on the connecting hole 108 of seal cover 102; And seal cover 102 is connected on the openend of cavity 101 through trip bolt 107; Make voice coil loudspeaker voice coil 103 and magnetic core 104 be fixed on the central authorities of seal chamber together, and guarantee good sealing property.During practical implementation, require cavity 101 to be metallic article, and have good performance of heat dissipation.
Optional, cavity 101 inside also are filled with heat-conducting silicone grease, to guarantee good performance of heat dissipation, play the effect of heat conduction on the one hand, also can play the effect of sealed aperture on the other hand.
Further; The sound-producing device that present embodiment provides; Also be provided with fixed connection or integrally formed base 111 on the blind end of its cavity 101, this base 111 is installed on the casing of electric equipment through securing member, thereby sound-producing device is connected with electric equipment.
Need to prove that above-mentioned is that example describes with seal chamber employing cylindrical structural only, during practical implementation, seal chamber can also adopt the structure of other shapes, like quadrangular prism, hexagon prism etc.
The sound-producing device that the present invention implements to provide is installed on the casing of electric equipment; Voice coil loudspeaker voice coil 103 is connected with the audio electrical signal of electric equipment through lead 105, and after the audio electrical signal input, the current strength and the direction of flowing through voice coil 103 change in time; Voice coil loudspeaker voice coil 103 receives the electrodynamic vibration back and forth in the air-gap that acts on; The casing of electric equipment produces resonance under the drive of voice coil loudspeaker voice coil 103, and working medium radiation sound wave towards periphery, has realized the conversion between electric energy and the acoustic energy.Casing has transmitted the vibration that annular seal space is produced effectively, and the vibration that sound-producing device forms is amplified, thereby forms the good sound effect.
Referring to Fig. 3, be the sketch map of an application scenarios of sound-producing device provided by the invention.Sound-producing device 1 is installed on the casing 3, and wherein, casing 3 is the casing of electric equipment (for example television set, broadcast receiver, sound equipment etc.), is evenly to transmit acoustic vibration, effectively is connected through rubber blanket 2 between sound-producing device 1 and the casing 3.In the specific implementation, sound-producing device 1 can be installed on the casing 3 with plumbness, can also be installed on the casing 3 with level.
In the middle of practical implementation; The sound-producing device that the embodiment of the invention provides may be used in the electric equipments such as television set, broadcast receiver, sound equipment; It is installed on the casing of electric equipment; Casing can transmit the acoustic vibration that sound-producing device produces effectively, and vibration is amplified, and forms the good sound effect.When electric equipment is put on the platform, also can produce non-acoustical quality with vibration transfer to platform with common music.
The sound-producing device that the embodiment of the invention provides is placed in voice coil loudspeaker voice coil in the seal chamber, and the sealing cavity is installed on the casing of electric equipment through securing member, and seal chamber is provided with wire guide, and the lead that is connected with voice coil loudspeaker voice coil is drawn from wire guide.The audio electrical signal of electric equipment is sent to voice coil loudspeaker voice coil via lead, makes voice coil loudspeaker voice coil produce vibration, and casing produces resonance under the drive of voice coil loudspeaker voice coil, and working medium radiation sound wave towards periphery, thus the conversion between realization electric energy and the acoustic energy.Adopt the embodiment of the invention, sound-producing device is fixed on the casing of electric equipment, utilize resonance can realize out sound effective value, simple in structure, reliability is high; And the casing of electric equipment need not to design phonate hole, does not influence the outward appearance of electric equipment.
The above is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also are regarded as protection scope of the present invention.
Claims (8)
1. a sound-producing device is characterized in that, comprises seal chamber, voice coil loudspeaker voice coil and lead;
Said voice coil loudspeaker voice coil is by forming around lead, and places said seal chamber inner;
Said lead is connected with said voice coil loudspeaker voice coil, and draws the wire guide from said seal chamber;
Said seal chamber is fixed on through securing member on the casing of electric equipment, and said voice coil loudspeaker voice coil inserts the audio electrical signal of electric equipment through said lead;
Said sound-producing device also comprises magnetic core; The mid portion of said magnetic core is a cylindrical structure, and extends into cone to two ends, and double cone body and cylinder are on same axial line;
Said voice coil loudspeaker voice coil is enclosed within the shell portion of said magnetic core, in said magnetic core is placed in said seal chamber;
The cylinder diameter of said magnetic core mid portion is less than the diameter of said voice coil loudspeaker voice coil, and the cone diameter at said magnetic core two ends is greater than the diameter of said voice coil loudspeaker voice coil.
2. sound-producing device as claimed in claim 1 is characterized in that said seal chamber is made up of cavity and seal cover;
Said cavity is semi-enclosed cylindrical shell, and it has an openend and a blind end;
Said seal cover is connected the openend of said cavity through securing member, is connected to form seal chamber with said cavity.
3. sound-producing device as claimed in claim 2 is characterized in that said seal cover is provided with screw, and said seal cover is connected on the openend of said cavity through trip bolt.
4. like each described sound-producing device of claim 1 ~ 3, it is characterized in that said voice coil loudspeaker voice coil has been smeared a group of insulating varnish by the outside and formed around copper cash.
5. sound-producing device as claimed in claim 4 is characterized in that, the center of said inside cavity blind end and the center of said seal cover are respectively equipped with connecting hole; The cone summit at said magnetic core two ends is installed in respectively on the said connecting hole, makes said voice coil loudspeaker voice coil and said magnetic core be fixed on the central authorities of seal chamber together.
6. sound-producing device as claimed in claim 1 is characterized in that, is filled with heat-conducting silicone grease in the said seal chamber.
7. sound-producing device as claimed in claim 1 is characterized in that said lead is wrapped with the pyrocondensation conduit.
8. sound-producing device as claimed in claim 1, said sound-producing device also comprises rubber blanket, said seal chamber is fixed on the casing of electric equipment via said rubber blanket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910192714A CN101674517B (en) | 2009-09-25 | 2009-09-25 | Acoustic generating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910192714A CN101674517B (en) | 2009-09-25 | 2009-09-25 | Acoustic generating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101674517A CN101674517A (en) | 2010-03-17 |
| CN101674517B true CN101674517B (en) | 2012-08-29 |
Family
ID=42021454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910192714A Expired - Fee Related CN101674517B (en) | 2009-09-25 | 2009-09-25 | Acoustic generating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101674517B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110545510A (en) * | 2019-08-30 | 2019-12-06 | 歌尔股份有限公司 | Socket device of sound generating device and sound generating device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211857087U (en) * | 2020-02-24 | 2020-11-03 | 宁波激智科技股份有限公司 | Interference reducing collimation film |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1243653A (en) * | 1997-01-31 | 2000-02-02 | 新型转换器有限公司 | Electro-dynamic exciter |
| WO2000022877A1 (en) * | 1998-10-13 | 2000-04-20 | New Transducers Limited | Resonant panel loudspeakers |
| CN101472210A (en) * | 2008-07-22 | 2009-07-01 | 王广林 | Electromagnetic drive resonance phonation device |
-
2009
- 2009-09-25 CN CN200910192714A patent/CN101674517B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1243653A (en) * | 1997-01-31 | 2000-02-02 | 新型转换器有限公司 | Electro-dynamic exciter |
| WO2000022877A1 (en) * | 1998-10-13 | 2000-04-20 | New Transducers Limited | Resonant panel loudspeakers |
| CN101472210A (en) * | 2008-07-22 | 2009-07-01 | 王广林 | Electromagnetic drive resonance phonation device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110545510A (en) * | 2019-08-30 | 2019-12-06 | 歌尔股份有限公司 | Socket device of sound generating device and sound generating device |
| CN110545510B (en) * | 2019-08-30 | 2021-06-11 | 歌尔股份有限公司 | Socket device of sound generating device and sound generating device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101674517A (en) | 2010-03-17 |
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Granted publication date: 20120829 Termination date: 20210925 |
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| CF01 | Termination of patent right due to non-payment of annual fee |