CN201947438U - Speaker and sound equipment with same - Google Patents
Speaker and sound equipment with same Download PDFInfo
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- CN201947438U CN201947438U CN201120036640XU CN201120036640U CN201947438U CN 201947438 U CN201947438 U CN 201947438U CN 201120036640X U CN201120036640X U CN 201120036640XU CN 201120036640 U CN201120036640 U CN 201120036640U CN 201947438 U CN201947438 U CN 201947438U
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- voice coil
- vibration plate
- magnet
- loud speaker
- coil loudspeaker
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Abstract
The utility model discloses a speaker and sound equipment with the same, relating to the technical field of speakers. The speaker and the sound equipment are designed for smaller space. The speaker comprises a vibration plate, wherein the vibration plate is installed on a bearing object through an elastic supporting piece, the surface at one side of the vibration plate is provided with a voice coil, and the voice coil is arranged in a magnetic field formed by magnet components. The sound equipment comprises a shell that is internally provided with the speaker. The speaker and the sound equipment can be used for forming voice.
Description
Technical field
The utility model relates to the loudspeaker techniques field, relates in particular to a kind of loud speaker and has the stereo set of this loud speaker.
Background technology
Loud speaker is commonly called as loudspeaker, is a kind of electro-acoustic transducing device that can convert the electrical signal to voice signal, particularly is a kind of electro-acoustic transducing device that tone currents can be converted to sound.Be extensive use of loud speaker in the present stereo set sound is provided.
In general, the structure of loud speaker is with electrical conductor, be that voice coil loudspeaker voice coil in the loud speaker places in the middle of the constant magnetic field, when tone currents passes through this voice coil loudspeaker voice coil, according to " electrical conductor is subjected to the effect of power in magnetic field " this electromagnetic principle, the voice coil loudspeaker voice coil that is arranged in the stationary magnetic field is subjected to the effect of power, and produces vibration under the effect of this power.Simultaneously because this voice coil loudspeaker voice coil is arranged on the vibrating diaphragm, so the vibration of voice coil loudspeaker voice coil can drive vibrating diaphragm and vibrate together, vibrating diaphragm vibration back produces sound, thereby tone currents is changed into the sound that has same waveform as with it.In addition, this vibrating diaphragm can also connect radiator, so that the sound that vibration produced of vibrating diaphragm is amplified.
At present the kind of loud speaker has a lot, loud speaker can be divided into cone loudspeaker and dome loudspeaker etc. according to the shape of vibrating diaphragm.Wherein cone loudspeaker is that vibrating diaphragm with loud speaker is made into cone shape, most widely usedly in the cone loudspeaker is taper cone vibrating membrane loudspeaker.Dome loudspeaker is that the vibrating diaphragm of loud speaker is made balling-up top shape.
But the thickness of cone loudspeaker and dome loudspeaker is bigger, and occupation space is more, when being applied in the stereo set, is difficult to realize ultra-thinization and the miniaturization of present stereo set.
The utility model content
Embodiment of the present utility model provides a kind of loud speaker, to occupy less space.
For achieving the above object, embodiment of the present utility model adopts following technical scheme:
A kind of loud speaker comprises vibration plate, and described vibration plate is installed on the carrying object by elastic supporting member for supporting optical member, and the surface of described vibration plate one side is provided with voice coil loudspeaker voice coil, and described voice coil loudspeaker voice coil is arranged in the magnetic field that is formed by magnet assembly.
Generally speaking, comprise at least two magnets in the described magnet assembly, described at least two magnet arrangements form the magnet matrix, and the pole orientation of each magnet in the described magnet matrix is reverse mutually perpendicular to the pole orientation of described vibration plate and adjacent two magnets.
Correspondingly, the number of described voice coil loudspeaker voice coil is at least one, and each voice coil loudspeaker voice coil is arranged on the magnetic circuit between adjacent two magnets in the described magnet matrix one to one.
Generally, described voice coil loudspeaker voice coil is arranged on the edge of described vibration plate.
Described vibration plate can be transparent vibration plate.
Described vibration plate can comprise glass vibration plate or resin vibration plate.
Described magnet assembly can be permanent magnet assembly or electromagnet assembly; Described elastic supporting member for supporting optical member can comprise rubber part, foam support part or spring support.
The loud speaker that the utility model embodiment provides, because described voice coil loudspeaker voice coil is set directly on the surface of described vibration plate one side, and described voice coil loudspeaker voice coil is placed the magnetic field that forms by described magnet assembly, therefore in the application process of described loud speaker when described voice coil loudspeaker voice coil feeds tone currents, described voice coil loudspeaker voice coil can produce vibration in the magnetic field that is formed by described magnet assembly, thereby drive described vibration plate vibration sounding, the thickness of wherein said vibration plate is less, thereby can occupy less space for existing conical diaphragm and ball top shape vibrating diaphragm.
Embodiment of the present utility model provides a kind of stereo set, so that loud speaker wherein occupies less space, and ultra-thinization and the miniaturization of realization stereo set.
For achieving the above object, embodiment of the present utility model adopts following technical scheme:
A kind of stereo set comprises housing, is provided with aforesaid loud speaker in the described housing.
For example, be provided with display screen in the described housing, the front portion of described display screen or rear portion are provided with the baffle as the vibration plate of described loud speaker, and described baffle is installed on the described housing by elastic supporting member for supporting optical member, and the surface of described baffle one side is provided with voice coil loudspeaker voice coil.
The display device that the utility model embodiment provides, for loud speaker wherein, because described voice coil loudspeaker voice coil is set directly on the surface of described vibration plate one side, and described voice coil loudspeaker voice coil is placed the magnetic field that forms by described magnet assembly, therefore in the application process of described loud speaker when described voice coil loudspeaker voice coil feeds tone currents, described voice coil loudspeaker voice coil can produce vibration in the magnetic field that is formed by described magnet assembly, thereby drive described vibration plate vibration sounding, the thickness of wherein said vibration plate is less, thereby for existing conical diaphragm and ball top shape vibrating diaphragm, can occupy less space, be easy to realize ultra-thinization and the miniaturization of described stereo set.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply, apparently, accompanying drawing in describing below is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic diagram of loud speaker among the utility model embodiment;
Fig. 2 is a kind of variant embodiment of loud speaker shown in Figure 1;
Fig. 3 is the schematic diagram of stereo set among the utility model embodiment;
Fig. 4 is the partial enlarged view of I part among Fig. 3.
Reference numeral:
The 1-vibration plate, 2-elastic supporting member for supporting optical member, 3-carrying object, 4-voice coil loudspeaker voice coil, 41-first voice coil loudspeaker voice coil, 42-second voice coil loudspeaker voice coil, 5-magnet assembly, 51-first magnet, 52-second magnet, 53-the 3rd magnet, 54-the 4th magnet, 55-the 5th magnet, 6-housing, 7-loud speaker.
Embodiment
Below in conjunction with accompanying drawing the utility model embodiment loud speaker and stereo set with this loud speaker are described in detail.
Should be clear and definite, described embodiment only is a part of embodiment of the present utility model, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making all other embodiment that obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1, be a specific embodiment of the utility model loud speaker.In the present embodiment, described loud speaker comprises vibration plate 1, and vibration plate 1 is installed on the carrying object 3 by elastic supporting member for supporting optical member 2, and the surface of vibration plate 1 one sides is provided with voice coil loudspeaker voice coil 4, and voice coil loudspeaker voice coil 4 is arranged in the magnetic field that is formed by magnet assembly 5.
Loud speaker in the present embodiment, because voice coil loudspeaker voice coil 4 is set directly on the surface of vibration plate 1 one sides, and voice coil loudspeaker voice coil 4 is placed the magnetic field that forms by magnet assembly 5, therefore in the application process of described loud speaker when voice coil loudspeaker voice coil 4 feeds tone currentss, voice coil loudspeaker voice coil 4 can produce vibration in the magnetic field that is formed by magnet assembly 5, thereby drive vibration plate 1 vibration sounding, wherein the thickness of vibration plate 1 is less, thereby can occupy less space for existing conical diaphragm and ball top shape vibrating diaphragm.
Generally speaking, comprise at least two magnets in the magnet assembly 5, these at least two magnet arrangements form the magnet matrix, and the pole orientation of each magnet in the described magnet matrix is reverse mutually perpendicular to the pole orientation of vibration plate 1 and adjacent two magnets.For example, in the embodiment shown in fig. 1, magnet assembly 5 comprises three magnets, i.e. first magnet 51, second magnet 52 and the 3rd magnet 53, have predetermined magnetic gap (being the gap between adjacent two magnets) between first magnet 51, second magnet 52 and the 3rd magnet 53 and form the magnet matrix, formed magnet matrix can produce bigger magnetic field force, thereby can guarantee that voice coil loudspeaker voice coil 4 drives vibration plate 1 and produces enough vibrations converting sound to the tone currents that voice coil loudspeaker voice coil 4 feeds.For example, the pole orientation (being the direction of the magnets N utmost point to the S utmost point) that can make each magnet in the described magnet matrix is perpendicular to vibration plate 1, and makes the pole orientation of adjacent two magnets reverse mutually.Under this setup, produce bigger magnetic field force between can be in the magnetic of adjacent two magnets different magnetic poles, for example can all can produce bigger magnetic field force between the S utmost point of the first magnets N utmost point and second magnet and between the S utmost point of the 3rd magnets N utmost point and second magnet, when this bigger magnetic field force acts on voice coil loudspeaker voice coil 4, can guarantee that voice coil loudspeaker voice coil 4 drives vibration plate 1 and produces enough vibrations.
Need to prove in addition, when the pole orientation of each magnet is set to perpendicular to vibration plate 1 in the described magnet matrix, can allow in described magnet matrix, to arrange the more magnet of number is set, and allow the magnetic field force major part of mutual generation between each magnet all to act on voice coil loudspeaker voice coil 4, and can between adjacent magnet, not consume mutually.Here by relatively details are as follows to the advantage of the spread pattern of this magnet matrix, as shown in Figure 2, be a kind of modification of loud speaker embodiment shown in Figure 1.In this variant embodiment, comprise the 4th magnet 54 and the 5th magnet 55 in the described magnet matrix, the pole orientation of the 4th magnet 54 and the 5th magnet 55 is parallel to vibration plate 1, when the pole orientation of each magnet in this magnet matrix is set to mutually oppositely, produce certain magnetic field force between the N utmost point of the 4th magnet 54 self and the S utmost point, similarly also produce certain magnetic field force between the N utmost point of the 5th magnet self and the S utmost point, this part magnetic field force can act on the voice coil loudspeaker voice coil 4 and drive vibration plate 1 vibration to drive voice coil loudspeaker voice coil 4.In addition, between the N utmost point of the S utmost point of the 4th adjacent magnet 54 and the 5th magnet 55, also produce certain magnetic field force is arranged, these magnetic field forces only interact between two adjacent magnets and do not act on voice coil loudspeaker voice coil 4, therefore the arrangement mode of this magnet matrix makes the magnetic field force between adjacent two magnets reciprocally consume, and is difficult to guarantee that vibration plate 1 can produce enough vibrations.Wherein it is noted that when pole orientation when each magnet in this magnet matrix is set to mutually in the same way, also can between two adjacent magnets, consume magnetic field force.
But the arrangement mode that should be appreciated that the magnet matrix in embodiment illustrated in fig. 1 only is a kind of preferred mode, rather than a kind of restriction.That is to say that the utility model does not limit the arrangement mode that uses the magnet matrix in embodiment illustrated in fig. 2.That is, in other embodiment of the present utility model,, also can use the arrangement mode of the magnet matrix in embodiment illustrated in fig. 2 according to the situation of reality.
Correspondingly, in the embodiment shown in fig. 1, the number of voice coil loudspeaker voice coil 4 can be at least one, and each voice coil loudspeaker voice coil 4 is arranged on the magnetic circuit between adjacent two magnets in the described magnet matrix one to one, so that each voice coil loudspeaker voice coil 4 can be subjected to maximum magnetic field force effect, thereby produce vibration and drive vibration plate 1 vibration.For example, from embodiment shown in Figure 1 as can be seen, the number of voice coil loudspeaker voice coil 4 is two, comprises first voice coil loudspeaker voice coil 41 and second voice coil loudspeaker voice coil 42.First voice coil loudspeaker voice coil 41 is arranged on the magnetic circuit between first magnet 51 and second magnet 52, can be subjected to the magnetic field force effect between the S utmost point of the N utmost point of first magnet 51 and second magnet 52.Second voice coil loudspeaker voice coil 42 is arranged on the magnetic circuit between second magnet 52 and the 3rd magnet 53, can be subjected to the magnetic field force effect between the N utmost point of the S utmost point of second magnet 52 and the 3rd magnet 53.
Certainly the setting of voice coil loudspeaker voice coil 4 is not limited thereto, when the size of each magnet in the described magnet matrix is enough big, for example under state shown in Figure 1, when the size on the vertical paper direction in the edge of each magnet is enough big, at the voice coil loudspeaker voice coil 4 that can be provided with on the direction of vertical paper and between two adjacent magnets more than one.
Generally speaking, the magnetic gap between two adjacent magnets is more little, and the magnetic field force that produces between these two adjacent magnets is just big more, therefore can be provided with the magnetic gap between two adjacent magnets smaller usually.But it should be noted that when magnetic gap between adjacent two magnets is too small, make the magnetic field range that forms between these two adjacent magnets too small again easily, thereby be unfavorable for that voice coil loudspeaker voice coil 4 produces vibration.For this reason, can make in the described magnet matrix magnetic gap between adjacent two magnets greater than the thickness of voice coil loudspeaker voice coil 4.Under the prerequisite of magnetic gap greater than the thickness of voice coil loudspeaker voice coil 4 in making described magnet matrix between adjacent two magnets, generally this magnetic gap is the smaller the better, can increase the suffered magnetic field force of voice coil loudspeaker voice coil 4 like this.
Generally, voice coil loudspeaker voice coil 4 can be arranged on the edge of vibration plate 1, can save the space that voice coil loudspeaker voice coil 4 occupies like this on vibration plate 1, so that can realize other purposes in other positions of vibration plate 1.For example with described loudspeaker applications in stereo set the time with display screen; generally the baffle that is positioned at display screen front portion or rear portion can be used as vibration plate 1; as for being positioned at the transparent protection plate of display screen front portion; voice coil loudspeaker voice coil 4 can be arranged on the place, edge (as lower edge) of this transparent protection plate, see through by the shown content of display screen so that all the other positions of this transparent protection plate be can be used in.In addition, also voice coil loudspeaker voice coil 4 can be arranged on the position at the close center of vibration plate 1.
In some application scenarios; vibration plate 1 can be set to transparent vibration plate; for example with described loudspeaker applications in stereo set the time with display screen; generally the baffle that is positioned at the display screen front portion can be used as vibration plate 1; see content that described display screen shown in order to make the user can see through baffle this moment, can be set to transparent protection plate by baffle usually.
Described vibration plate 1 preferably can comprise glass vibration plate or resin vibration plate.Because the development of manufacture craft at present, make glass vibration plate or resin vibration plate can either have less thickness (in order to reach vibrating effect preferably), can have excellent mechanical intensity again (destroys in vibration in order to prevent glass vibration plate or resin vibration plate, guarantee the reliability of vibration), therefore can use glass or resin material to make vibration plate 1.
Elastic supporting member for supporting optical member 2 can comprise rubber part, foam support part or spring support.After being supported on vibration plate 1 on the carrying object by elastic supporting member for supporting optical member 2, vibration plate 1 is vibrated better.
Wherein need to prove, when using vibration plate as vibrating diaphragm, can carry out suitable setting by structure, shape and position relation etc., so that make the loud speaker that forms by this vibration plate have good Frequency Response and sensitivity to vibration plate 1, elastic supporting member for supporting optical member 2, voice coil loudspeaker voice coil 4 and magnet assembly 5.
In addition, the utility model also provides a kind of embodiment of stereo set.In the present embodiment, as shown in Figure 3, described stereo set comprises housing 6, is provided with loud speaker 7 in the housing 6.Referring to shown in Figure 1, loud speaker 7 comprises vibration plate 1, and vibration plate 1 is installed on the carrying object 3 by elastic supporting member for supporting optical member 2, and the surface of vibration plate 1 one sides is provided with voice coil loudspeaker voice coil 4, and voice coil loudspeaker voice coil 4 is arranged in the magnetic field that is formed by magnet assembly 5.
Stereo set in the present embodiment, for loud speaker 7 wherein, because voice coil loudspeaker voice coil 4 is set directly on the surface of vibration plate 1 one sides, and voice coil loudspeaker voice coil 4 is placed the magnetic field that forms by magnet assembly 5, therefore in the application process of described loud speaker when voice coil loudspeaker voice coil 4 feeds tone currentss, voice coil loudspeaker voice coil 4 can produce vibration in the magnetic field that is formed by magnet assembly 5, thereby drive vibration plate 1 vibration sounding, wherein the thickness of vibration plate 1 is less, thereby for existing conical diaphragm and ball top shape vibrating diaphragm, can occupy less space, be easy to realize ultra-thinization and the miniaturization of described stereo set.
The 26S Proteasome Structure and Function that should be appreciated that the loud speaker that uses in the stereo set described in the present embodiment is identical with the 26S Proteasome Structure and Function of loud speaker described in the foregoing description, therefore can solve identical technical problem, reaches identical technique effect.
Be that example illustrates the stereo set in the present embodiment below with the panel TV set.Referring to Fig. 3 and shown in Figure 4; this panel TV set comprises housing 6, is provided with display screen 8 in the housing 6, and the front portion of display screen 8 is provided with the baffle 9 as the vibration plate 1 of loud speaker 7; baffle 9 is installed on the housing 6 by elastic supporting member for supporting optical member 2, and is provided with voice coil loudspeaker voice coil 4 on the surface of baffle 9 one sides.Utilize the vibration plate 1 of the parts of described stereo set self like this as loud speaker 7, not only can make loud speaker 7 thickness attenuation, but also be that loud speaker 7 has stealthy effect, can be so that loud speaker 7 and stereo set integrator, the user has been hidden the vibration plate structure of loud speaker 7, make described stereo set when possessing acoustic function, also have interest, on the basis of increase user, promoted competitiveness of product the curious sense of product.Wherein,, baffle 9 can be made as transparent protection plate, and voice coil loudspeaker voice coil 4 be arranged on the lower edge position of baffle 9 in order not hinder the normal demonstration of display screen 8.
Except that the vibration plate 1 of baffle 9 as loud speaker 7 with display screen 8 front portions, can also be with the baffle at display screen 8 rear portions vibration plate 1 as loud speaker 7.The baffle at display screen 8 front portions or rear portion all can be made by glass material or resin material.
Needing explanation only is that to be example with the panel TV set be illustrated the structure of stereo set here, but be not limited thereto, (all can adopt and the similar structure of panel TV set in the stereo set such as GlobalPositioning System (global positioning system) navigation at panel computer, mobile phone, MP4, GPS.
In addition, the loadspeaker structure in the utility model can also be used in fields such as building, furniture, fitting-up, advertisement, reduces to take up space to reach, and forms the effect of stealthy loud speaker.For example, can constitute described loud speaker by this vibration plate with the windowpane on building or the furniture or glass door as the vibration plate of described loud speaker.
The above; it only is embodiment of the present utility model; but protection range of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; can expect easily changing or replacing, all should be encompassed within the protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range of described claim.
Claims (9)
1. a loud speaker is characterized in that, comprises vibration plate, and described vibration plate is installed on the carrying object by elastic supporting member for supporting optical member, and the surface of described vibration plate one side is provided with voice coil loudspeaker voice coil, and described voice coil loudspeaker voice coil is arranged in the magnetic field that is formed by magnet assembly.
2. loud speaker according to claim 1, it is characterized in that, comprise at least two magnets in the described magnet assembly, described at least two magnet arrangements form the magnet matrix, and the pole orientation of each magnet in the described magnet matrix is reverse mutually perpendicular to the pole orientation of described vibration plate and adjacent two magnets.
3. loud speaker according to claim 2 is characterized in that, the number of described voice coil loudspeaker voice coil is at least one, and each voice coil loudspeaker voice coil is arranged on the magnetic circuit between adjacent two magnets in the described magnet matrix one to one.
4. according to each described loud speaker in the claim 1 to 3, it is characterized in that described voice coil loudspeaker voice coil is arranged on the edge of described vibration plate.
5. according to each described loud speaker in the claim 1 to 3, it is characterized in that described vibration plate is transparent vibration plate.
6. according to each described loud speaker in the claim 1 to 3, it is characterized in that described vibration plate comprises glass vibration plate or resin vibration plate.
7. according to each described loud speaker in the claim 1 to 3, it is characterized in that described magnet assembly is permanent magnet assembly or electromagnet assembly; Described elastic supporting member for supporting optical member comprises rubber part, foam support part or spring support.
8. a stereo set comprises housing, it is characterized in that, is provided with in the described housing as each described loud speaker of claim 1 to 7.
9. stereo set according to claim 8; it is characterized in that; be provided with display screen in the described housing; the front portion of described display screen or rear portion are provided with the baffle as the vibration plate of described loud speaker; described baffle is installed on the described housing by elastic supporting member for supporting optical member, and the surface of described baffle one side is provided with voice coil loudspeaker voice coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120036640XU CN201947438U (en) | 2011-02-11 | 2011-02-11 | Speaker and sound equipment with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120036640XU CN201947438U (en) | 2011-02-11 | 2011-02-11 | Speaker and sound equipment with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201947438U true CN201947438U (en) | 2011-08-24 |
Family
ID=44474772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120036640XU Expired - Lifetime CN201947438U (en) | 2011-02-11 | 2011-02-11 | Speaker and sound equipment with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201947438U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103260114A (en) * | 2012-02-17 | 2013-08-21 | 友泰讯科(北京)科技有限公司 | Miniature loudspeaker module applied on electronic product and electronic product |
| CN105282663A (en) * | 2015-11-23 | 2016-01-27 | 许扬 | Flat and moving-coil combined-type vibrating diaphragm assembly |
| CN112104957A (en) * | 2019-06-17 | 2020-12-18 | 海信视像科技股份有限公司 | Electronic device |
| WO2021056900A1 (en) * | 2019-09-28 | 2021-04-01 | 歌尔股份有限公司 | Sound production device and electronic apparatus |
| TWI841370B (en) * | 2023-05-03 | 2024-05-01 | 玻音先創科技股份有限公司 | Two-wheel vehicle with glass diaphragm sound system |
-
2011
- 2011-02-11 CN CN201120036640XU patent/CN201947438U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103260114A (en) * | 2012-02-17 | 2013-08-21 | 友泰讯科(北京)科技有限公司 | Miniature loudspeaker module applied on electronic product and electronic product |
| CN103260114B (en) * | 2012-02-17 | 2016-08-24 | 刘广松 | A kind of Microspeaker module being applied to electronic product and electronic product |
| CN105282663A (en) * | 2015-11-23 | 2016-01-27 | 许扬 | Flat and moving-coil combined-type vibrating diaphragm assembly |
| CN105282663B (en) * | 2015-11-23 | 2018-06-08 | 许扬 | A kind of plane moving-coil composite type diaphragm component |
| CN112104957A (en) * | 2019-06-17 | 2020-12-18 | 海信视像科技股份有限公司 | Electronic device |
| WO2021056900A1 (en) * | 2019-09-28 | 2021-04-01 | 歌尔股份有限公司 | Sound production device and electronic apparatus |
| TWI841370B (en) * | 2023-05-03 | 2024-05-01 | 玻音先創科技股份有限公司 | Two-wheel vehicle with glass diaphragm sound system |
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Legal Events
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110824 |
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| CX01 | Expiry of patent term |