CN102170603B - Mechanical frequency division diaphragm and manufacturing method thereof - Google Patents
Mechanical frequency division diaphragm and manufacturing method thereof Download PDFInfo
- Publication number
- CN102170603B CN102170603B CN201110131634.7A CN201110131634A CN102170603B CN 102170603 B CN102170603 B CN 102170603B CN 201110131634 A CN201110131634 A CN 201110131634A CN 102170603 B CN102170603 B CN 102170603B
- Authority
- CN
- China
- Prior art keywords
- frequency division
- diaphragm
- mechanical frequency
- gap
- division diaphragm
- Prior art date
- 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.)
- Active
Links
Images
Landscapes
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
The invention relates to a mechanical frequency division diaphragm, which is provided with at least one slit for dividing the mechanical frequency division diaphragm. An adhesive for softly connecting the divided parts of the mechanical frequency division diaphragm is filled in the slit. The invention also relates to a manufacturing method for the mechanical frequency division diaphragm. The manufacturing method comprises the following steps of: performing slitting machining on the mechanical frequency diaphragm to manufacture at least one slit for dividing the mechanical frequency division diaphragm; and filling the adhesive in the slit to softly connect the divided parts of the mechanical frequency division diaphragm. In the mechanical frequency division diaphragm and the manufacturing method thereof provided by the invention, own amplitude frequency response of the diaphragm is regulated to weaken an undesired high-frequency part by changing own vibration mode of the diaphragm of a loudspeaker, so that processing is not required to be performed on acoustical signals not arriving at the diaphragm to further avoid all possible distortions, simultaneously achieve a frequency division effect and overcome the shortcoming of influence on original sounds in conventional frequency division methods.
Description
Technical field
The present invention relates to sound equipment field, more particularly, relate to a kind of mechanical frequency division diaphragm and preparation method thereof.
Background technology
The frequency range of the sound that people's ear can be heard is 20 to 20KHZ, but often a loud speaker can not be realized so playback of the sound of wide frequency ranges, so in order to reach better sound effect, we often adopt 2 or more loud speaker to realize, one or more loud speakers are responsible for HFS, and such loudspeaker are called alt loudspeaker; Add one or more loud speakers and be responsible for the playback of low frequency part sound, such loudspeaker are called middle bass horn.The playback of the sound that certainly these 2 kinds of loudspeaker are realized has the part of coincidence at Mid Frequency, for the sound of these 2 kinds of loudspeaker is not interacted, just need frequency division, allows exactly the do not reset sound of high frequency of middle bass horn, allows the do not reset sound of low frequency of alt loudspeaker.Frequency division in the past has 2 kinds of methods: the one, and active electronic frequency division, has just carried out the effect of frequency division from power amplifier sound out exactly; The 2nd, passive frequency division, the frequency divider through design of connecting between power amplifier and loud speaker exactly, filters out the voice signal of unwanted frequency.Which kind of method all can exert an influence to original sound, especially the second, can cause very large phase deviation, cause the amplitude-frequency response of final speaker playback to become unsmooth, produce large darker paddy or higher peak, such heard sound and original sound just have very large difference.
Therefore, be necessary to provide a kind of mechanical frequency division diaphragm and preparation method thereof, to solve the existing problem of prior art.
Summary of the invention
The technical problem to be solved in the present invention is, the defect that all can exert an influence to original sound for the dividing method of prior art, a kind of change of self vibration mode of the vibrating diaphragm by loud speaker is provided, the amplitude-frequency response of vibrating diaphragm self is adjusted to a kind of mechanical frequency division diaphragm that unwanted HFS is weakened and preparation method thereof.Voice signal before arriving vibrating diaphragm does not need to do any processing like this, has just avoided all possible distortions yet, has reached the effect of frequency division simultaneously yet.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of mechanical frequency division diaphragm, wherein, described mechanical frequency division diaphragm is provided with at least one gap that described mechanical frequency division diaphragm is separated, and is provided with the bonding agent that the part being separated of described mechanical frequency division diaphragm is flexible coupling in described gap.
In mechanical frequency division diaphragm of the present invention, the quantity in described gap is 3 to 8.
In mechanical frequency division diaphragm of the present invention, the center of the relatively described mechanical frequency division diaphragm in described gap is asymmetric distribution.
In mechanical frequency division diaphragm of the present invention, described gap is straight line or curve; Described gap and described mechanical frequency division diaphragm radially angled.
In mechanical frequency division diaphragm of the present invention, the width in described gap is less than 2mm.
In mechanical frequency division diaphragm of the present invention, when the quantity in described gap is 4, adjacent gap is mutually vertical.
In mechanical frequency division diaphragm of the present invention, the viscosity of described bonding agent is 100-300 Pascal * second.
The invention still further relates to a kind of manufacture method of mechanical frequency division diaphragm, comprising step: S1, described mechanical frequency division diaphragm is carried out to slot processing, make at least one by the separated gap of described mechanical frequency division diaphragm; S2, in described gap, fill bonding agent the part being separated of described mechanical frequency division diaphragm is flexible coupling.
In the manufacture method of mechanical frequency division diaphragm of the present invention, described step S1 processes for adopting by hand, grinding tool is die-cut or laser cutting is carried out slot processing to described mechanical frequency division diaphragm, makes at least one by the separated gap of described mechanical frequency division diaphragm; Described step S2 is flexible coupling the part being separated of described mechanical frequency division diaphragm for adopting artificial coating or adhesive supplier to fill bonding agent in described gap.
In the manufacture method of mechanical frequency division diaphragm of the present invention, the quantity in described gap is 3 to 8; The center of the relatively described mechanical frequency division diaphragm in described gap is asymmetric distribution; Described gap is straight line or curve; Described gap and described mechanical frequency division diaphragm radially angled; The width in described gap is less than 2mm; The viscosity of described bonding agent is 100-300 Pascal * second; When the quantity in described gap is 4, adjacent gap is mutually vertical.
Implement mechanical frequency division diaphragm of the present invention and preparation method thereof, there is following beneficial effect: the change of self vibration mode of the vibrating diaphragm by loud speaker, the amplitude-frequency response of vibrating diaphragm self is adjusted to unwanted HFS is weakened, voice signal before arriving vibrating diaphragm does not need to do any processing like this, also just avoid all possible distortions, also reached the effect of frequency division simultaneously.The defect of having avoided existing dividing method all can exert an influence to original sound.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the loudspeaker amplitude-versus-frequency curve of the mechanical vibrating diaphragm of prior art;
Fig. 2 A is the structural representation of the first preferred embodiment of mechanical frequency division diaphragm of the present invention;
Fig. 2 B is the loudspeaker amplitude-frequency response of the first preferred embodiment of mechanical frequency division diaphragm of the present invention;
Fig. 3 A is the structural representation of the second preferred embodiment of mechanical frequency division diaphragm of the present invention;
Fig. 3 B is the loudspeaker amplitude-frequency response of the second preferred embodiment of mechanical frequency division diaphragm of the present invention;
Fig. 4 A is the structural representation of the 3rd preferred embodiment of mechanical frequency division diaphragm of the present invention;
Fig. 4 B is the loudspeaker amplitude-frequency response of the 3rd preferred embodiment of mechanical frequency division diaphragm of the present invention;
Fig. 5 A is the structural representation of the 4th preferred embodiment of mechanical frequency division diaphragm of the present invention;
Fig. 5 B is the loudspeaker amplitude-frequency response of the 4th preferred embodiment of mechanical frequency division diaphragm of the present invention;
Fig. 6 A is the structural representation of the 5th preferred embodiment of mechanical frequency division diaphragm of the present invention;
Fig. 6 B is the loudspeaker amplitude-frequency response of the 5th preferred embodiment of mechanical frequency division diaphragm of the present invention;
Fig. 7 A is the structural representation of the 6th preferred embodiment of mechanical frequency division diaphragm of the present invention;
Fig. 7 B is the loudspeaker amplitude-frequency response of the 6th preferred embodiment of mechanical frequency division diaphragm of the present invention;
Fig. 8 A is the structural representation of the 7th preferred embodiment of mechanical frequency division diaphragm of the present invention;
Fig. 8 B is the loudspeaker amplitude-frequency response of employing soft bonding agent of the 7th preferred embodiment of mechanical frequency division diaphragm of the present invention;
Fig. 8 C is the loudspeaker amplitude-frequency response of employing high rigidity bonding agent of the 7th preferred embodiment of mechanical frequency division diaphragm of the present invention;
Fig. 9 is the flow chart of the first preferred embodiment of the manufacture method of mechanical frequency division diaphragm of the present invention;
Figure 10 is the flow chart of the second preferred embodiment of the manufacture method of mechanical frequency division diaphragm of the present invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Preferred embodiment as mechanical frequency division diaphragm of the present invention, described mechanical frequency division diaphragm is provided with at least one gap that described mechanical frequency division diaphragm is separated, and is provided with the bonding agent that the part being separated of described mechanical frequency division diaphragm is flexible coupling in described gap.
Vibrating diaphragm after slot, is quite divided into several independently parts, is no longer an integral body.Sound for HFS can not cause that (wavelength of sound of 2000HZ is 170 millimeters in effective vibration, and 65 millimeters of effective vibration radiuses of the middle bass horn of 6.5 inches that we commonly use, can compare), reduce the radiation impedance of high-frequency sound and the sensitivity of high-frequency sound, thereby reached the effect of frequency division.And still vibrating diaphragm can be regarded as to an integral body for the sound of low frequency part, vibrate (because the wavelength of low-frequency sound is very long, the frequency of the sound of the low frequency of disco of often hearing as us the chances are 80HZ, the wavelength of corresponding sound is 4250 millimeters, and just 65 millimeters of the effective vibration radiuses of the middle bass horn of 6.5 inches that we commonly use), so the sound of low frequency part is not produced to any impact.The factors such as the start position in the gap that we cut by control, length, quantity, gradient and symmetry, to reach our desirable desirable amplitude-frequency response.But due to the diversity of vibrating diaphragm before processing (external diameter, mesopore, shape, thickness, weight, material, internally-damped, pattern modulus etc., and the shape on supporting limit is, the weight on the material on limit, limit etc.), and the difference of other supplementary materials (as voice coil loudspeaker voice coil, cap, magnetic circuit system etc.), the amplitude-frequency response of resulting final loud speaker is all different, identical gap is also different on the effect of their impact, therefore how to carry out the making in gap, can only analyze qualitatively, as follows in detail:
1. the quantity in gap:
As long as there is gap, all can produce the effect of frequency division.The impact of quantity is on the slope of frequency division, and quantity is more, and slope is larger, and namely high band declines sooner, as shown in Fig. 2 A-8B.But the number needs in gap will be controlled in a rational scope, and very little, slope is too little for quantity, does not reach the effect of frequency division; If quantity is too many, though slope is very large, gap is divided into more part by vibrating diaphragm too much exactly, every part all can produce diaphagras, after mass part stack, can near certain frequency, produce very high peak or very dark paddy, affect on the contrary the effect of frequency division.The quantity in another gap can be destroyed vibrating diaphragm too much in the rigidity of low-frequency range, reduces LF-response.So for these reasons, the quantity general control in gap is just passable between 3-8, and vibrating diaphragm is little just corresponding few, and vibrating diaphragm is greatly just corresponding more.
2. the symmetry in gap
Symmetry refers to gap for the center of circle of vibrating diaphragm.Generally, require gap asymmetric (as shown in Figure 8 A).Because if symmetrical, the pattern of the diaphagras causing of each part is identical with frequency, produces very high peak or very dark paddy be very easy to form certain frequency on amplitude-frequency response near, has affected on the contrary the effect of frequency division.From Fig. 2 A-Fig. 8 B, also can find out, in the mechanical frequency division diaphragm that mechanical frequency division diaphragm shown in Fig. 8 A of asymmetric cutting cuts at several different modes at the loudspeaker amplitude-frequency response shown in Fig. 8 B, minute yupin effect is best, and Fig. 5 A, Fig. 6 A of symmetrical cutting and the mechanical frequency division diaphragm of Fig. 7 A play negative effect (minute yupin effect is poorer) on the contrary to loudspeaker amplitude-frequency response.
3. the gradient in gap and linearity
If gradient is to refer to starting and terminal point to connect into straight line, with respect to vibrating diaphragm angulation radially.As shown in Fig. 2 A-8B, first, from the impact in low-frequency range rigidity on vibrating diaphragm, there is certain gradient to affect meeting smaller; But gradient size generally according to gap quantity number, preferably adjacent slot is orthogonal, like this rigidity effects minimum (as shown in Fig. 2 A, 2B, 3A, 3B, 8A and 8B) in low-frequency range to vibrating diaphragm.From Fig. 4 B, can find out, the mode of for example radially cutting along vibrating diaphragm in Fig. 4 A plays negative effect (minute yupin effect is poorer) on the contrary to loudspeaker amplitude-frequency response.
As shown in Fig. 2 A-8B, no matter gap is straight line or curve (comprising the shapes such as sawtooth or wave), effect for frequency division is all identical, just different to the diaphagras causing, from suppressing the angle of diaphagras, curve can be better, and the curvature at curve top is the bigger the better; But curvature is larger, just mean that curve is longer, if curve is oversize, can destroy vibrating diaphragm in the rigidity of low-frequency range, reduce LF-response, so curvature will be in a rational scope, general recommendations length of a curve is within the scope of 1.2 to 2 times of straight length.
4. the width in gap
Gap is too wide, can affect vibrating diaphragm in the rigidity of low-frequency range; If gap is too narrow, follow-up glue application is not easy infiltration.So general gap width is (for the size of conventional loud speaker) below 2mm.According to conventional in the market glue, the width of suggestion slot is between 0.5 to 1mm.
5. the use of bonding agent
As shown in Fig. 8 B and 8C, wherein Fig. 8 B is the loudspeaker amplitude-frequency response of employing soft bonding agent of the 7th preferred embodiment of mechanical frequency division diaphragm of the present invention; Fig. 8 C is the loudspeaker amplitude-frequency response of employing high rigidity bonding agent of the 7th preferred embodiment of mechanical frequency division diaphragm of the present invention;
To gap filling bonding agent, can prevent vibrating diaphragm front and back sound short circuit when sounding, thereby LF-response is weakened.Use bonding agent can reduce diaphagras simultaneously, reduce distortion, improve amplitude-frequency response.Gap is to belong to free boundary near vibrating diaphragm, easy vibrative reflection, produce strong diaphagras, and due to after slot, be equivalent to original vibrating diaphragm to be divided into several little vibrating diaphragms, the diaphagras of the stack meeting of the diaphagras of several little vibrating diaphragms before than original not slot is also serious, thereby affects the frequency response curve of whole vibrating diaphragm; Also easily produce noise (noise that the vibrating diaphragm free vibration of place, gap produces) simultaneously.And in gap, fill after bonding agent, gap is to belong to soft border near vibrating diaphragm, can greatly reduce the reflection of place, gap vibration, the diaphagras before the original not slot of diaphagras ratio of vibrating diaphragm is much lower; Due to after slot, be equivalent to original vibrating diaphragm to be divided into several little vibrating diaphragms simultaneously, improved the initial frequency of diaphagras, so just eliminated the low frequency part of original vibrating diaphragm diaphagras, thereby reduced distortion, improved amplitude-frequency response.In addition, after gap filling bonding agent, also eliminate the noise that the place's free vibration of original gap causes.
For the selection of bonding agent, what need consideration is the viscosity (internally-damped or internal friction power) of bonding agent.Different gap widths need to adopt the bonding agent of different viscosities.Gap is wider, needs the viscosity of bonding agent larger.Found through experiments, adopt the loudspeaker amplitude-frequency response of soft bonding agent to be better than the loudspeaker amplitude-frequency response (as shown in Fig. 8 B and 8C) that adopts high rigidity bonding agent, the viscosity of the bonding agent (non-setting adhesive cement or damping glue) using was at present probably 100 to 300 Pascal * seconds, like this gap width of correspondence probably 0.5 to 0.8mm.
In sum; the setting in gap is a result considering; the impact that may produce some aspect of vibrating diaphragm; again other aspect is produced to bad impact simultaneously; but as long as the design matching according to different vibrating diaphragms can reach good mechanical frequency division effect; therefore the present invention is not limited only to the various forms in gap, so long as carry out frequency division processing and all belong to protection scope of the present invention by gap is set on vibrating diaphragm.
The invention still further relates to a kind of manufacture method of mechanical frequency division diaphragm, is that in the flow chart of the first preferred embodiment of manufacture method of mechanical frequency division diaphragm of the present invention, described method starts from step 900, carries out subsequently at Fig. 9:
Step 901:, described mechanical frequency division diaphragm is carried out to slot processing, make at least one by the separated gap of described mechanical frequency division diaphragm;
Step 902 is filled bonding agent the part being separated of described mechanical frequency division diaphragm is flexible coupling in described gap.
Final method ends at step 903.
The specific embodiment that the beneficial effect that the manufacture method of mechanical frequency division diaphragm of the present invention is concrete and embodiment refer to above-mentioned mechanical frequency division diaphragm.
At Figure 10, be that in the flow chart of the second preferred embodiment of manufacture method of mechanical frequency division diaphragm of the present invention, described method starts from step 1000, carries out subsequently:
Step 1001:, employing is processed by hand, grinding tool is die-cut or laser cutting is carried out slot processing to described mechanical frequency division diaphragm, makes at least one by the separated gap of described mechanical frequency division diaphragm;
Final method ends at step 1003.
Described mechanical frequency division diaphragm is carried out to slot processing, make at least one by the separated gap of described mechanical frequency division diaphragm.This process has 3 kinds of methods to select:
1. manual processing: according to the scheme designing in advance, do a template, template is covered on the vibrating diaphragm that needs processing, then use sharp blade to carry out manual processing.There are a lot of defects in the method, consistency is bad, speed is slow, to some, cannot process, to some vibrating diaphragm, can produce damage as vibrating diaphragms such as metal vibration diaphragms.
2. mould is die-cut: manufacture a cutting die, the scheme of shape and design is identical, then makes a jig.Vibrating diaphragm is placed on jig, carries out die-cut.The method is effectively ensured still for those, have the inner soft vibrating diaphragm of certain thickness to have damage, as conventional pine is pressed vibrating diaphragm in efficiency and quality, its thickness is in 1mm left and right, after die-cut, at the edge of the edge of a knife, have distortion so, destroyed the original characteristic of loose pressure vibrating diaphragm.But there will not be this phenomenon for metal or vibrating diaphragm.
3. laser cutting: first by the scheme numbering program input laser cutting machine designing, then make a jig.Vibrating diaphragm is placed on jig, by laser, cuts.The method good stability, consistency is high, efficiency is high and applicable all materials.
User can carry out the slot processing of mechanical frequency division diaphragm according to the suitable method of need to selecting separately.
In described gap, filling bonding agent is flexible coupling the part being separated of described mechanical frequency division diaphragm.This process has 2 kinds of methods to select:
1. manually coating, cost is low, speed is slow, the amount of glue and attractive in appearancely all can not be guaranteed.
2. adopt adhesive supplier to carry out bonding agent filling, by the control of machinery and electronics and mould, can be very attractive in appearance, the amount of point-device control glue.
User can carry out the filling of bonding agent in gap according to the suitable method of need to selecting separately.
While filling bonding agent, the amount of bonding agent is can fill whole gap, and both sides are all a little oozed out.Amount is too many, can flow to other positions of vibrating diaphragm, has affected the characteristic of vibrating diaphragm; If amount does not reach the effect of the part being separated of the mechanical frequency division diaphragm that is flexible coupling very little.
As the preferred embodiment of the manufacture method of mechanical frequency division diaphragm of the present invention, the quantity in described gap is 3 to 8; Described gap is asymmetric distribution; Described gap is straight line or curve; Described gap and described mechanical frequency division diaphragm radially angled; The width in described gap is less than 2mm; The viscosity of described bonding agent is 100-300 Pascal * second; When the quantity in described gap is 4, adjacent gap is mutually vertical.
The specific embodiment that the beneficial effect that the manufacture method of mechanical frequency division diaphragm of the present invention is concrete and embodiment refer to above-mentioned mechanical frequency division diaphragm.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure transformation that utilizes specification of the present invention and accompanying drawing content to do, or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (4)
1. a mechanical frequency division diaphragm, is characterized in that, described mechanical frequency division diaphragm is provided with at least one gap that described mechanical frequency division diaphragm is separated, and is provided with the bonding agent that the part being separated of described mechanical frequency division diaphragm is flexible coupling in described gap; The center of the relatively described mechanical frequency division diaphragm in described gap is asymmetric distribution; The viscosity of described bonding agent is 100-300 Pascal * second, and described bonding agent is non-setting adhesive cement or damping glue, and the width in described gap is 0.5-0.8mm; The quantity in described gap is 3 to 8, and described gap is straight line or curve, described length of a curve be straight length 1.2-2 doubly, described gap and described mechanical frequency division diaphragm radially angled.
2. mechanical frequency division diaphragm according to claim 1, is characterized in that, when the quantity in described gap is 4, adjacent gap is mutually vertical.
3. a manufacture method for mechanical frequency division diaphragm as claimed in claim 1, is characterized in that, comprises step:
S1, employing are processed by hand, grinding tool is die-cut or laser cutting is carried out slot processing to described mechanical frequency division diaphragm, makes at least one by the separated gap of described mechanical frequency division diaphragm;
S2, the artificial coating of employing or adhesive supplier are filled bonding agent in described gap is flexible coupling the part being separated of described mechanical frequency division diaphragm.
4. the manufacture method of mechanical frequency division diaphragm according to claim 3, is characterized in that, the quantity in described gap is 3 to 8; The center of the relatively described mechanical frequency division diaphragm in described gap is asymmetric distribution; Described gap is straight line or curve; Described gap and described mechanical frequency division diaphragm radially angled; The width in described gap is less than 2mm; The viscosity of described bonding agent is 100-300 Pascal * second; When the quantity in described gap is 4, adjacent gap is mutually vertical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110131634.7A CN102170603B (en) | 2011-05-20 | 2011-05-20 | Mechanical frequency division diaphragm and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110131634.7A CN102170603B (en) | 2011-05-20 | 2011-05-20 | Mechanical frequency division diaphragm and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102170603A CN102170603A (en) | 2011-08-31 |
| CN102170603B true CN102170603B (en) | 2014-01-22 |
Family
ID=44491551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110131634.7A Active CN102170603B (en) | 2011-05-20 | 2011-05-20 | Mechanical frequency division diaphragm and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102170603B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10194245B1 (en) | 2017-07-28 | 2019-01-29 | Bose Corporation | Acoustic transducer with vibration damping |
| CN117381147B (en) * | 2023-12-13 | 2024-03-19 | 昆山海菲曼科技集团股份有限公司 | Precise laser processing device and laser processing method for acoustic thin film |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2738506Y (en) * | 2004-10-21 | 2005-11-02 | 程光 | Loudspeaker vibrating diaphragm |
| CN1906966A (en) * | 2004-01-23 | 2007-01-31 | 福斯特电机株式会社 | Diaphragm for loudspeaker and loudspeaker |
| JP2008017132A (en) * | 2006-07-05 | 2008-01-24 | Yamaha Corp | Diaphragm for speaker, and method of manufacturing diaphragm for speaker |
| CN101494812A (en) * | 2008-01-23 | 2009-07-29 | 宋行智 | Horn capable of eliminating vibration wave of vibration film |
| CN202121764U (en) * | 2011-05-20 | 2012-01-18 | 深圳麦博电器有限公司 | Mechanical frequency division diaphragm and loudspeaker |
-
2011
- 2011-05-20 CN CN201110131634.7A patent/CN102170603B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1906966A (en) * | 2004-01-23 | 2007-01-31 | 福斯特电机株式会社 | Diaphragm for loudspeaker and loudspeaker |
| CN2738506Y (en) * | 2004-10-21 | 2005-11-02 | 程光 | Loudspeaker vibrating diaphragm |
| JP2008017132A (en) * | 2006-07-05 | 2008-01-24 | Yamaha Corp | Diaphragm for speaker, and method of manufacturing diaphragm for speaker |
| CN101494812A (en) * | 2008-01-23 | 2009-07-29 | 宋行智 | Horn capable of eliminating vibration wave of vibration film |
| CN202121764U (en) * | 2011-05-20 | 2012-01-18 | 深圳麦博电器有限公司 | Mechanical frequency division diaphragm and loudspeaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102170603A (en) | 2011-08-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202121764U (en) | Mechanical frequency division diaphragm and loudspeaker | |
| CN102111703B (en) | Diaphragm perforating type piezoelectric flat speaker | |
| KR101863540B1 (en) | Diaphragm for protecting of eardrum | |
| US8855357B2 (en) | Speaker diaphragm and speaker using same, and electronic equipment and device using said speaker, and speaker diaphragm manufacturing method | |
| WO2016106285A1 (en) | Microspeaker acoustical resistance assembly | |
| CN1951149B (en) | Speaker | |
| US20050257999A1 (en) | Bobbin integrated type magnesium diaphragm, manufacturing method thereof, and speaker device using the diaphragm | |
| WO2020125171A1 (en) | Loudspeaker | |
| CN102170603B (en) | Mechanical frequency division diaphragm and manufacturing method thereof | |
| US6763117B2 (en) | Speaker enclosure | |
| CN101203064A (en) | Composite diaphragm and its making method | |
| KR101543082B1 (en) | Speaker Cone Paper and Manufacturing Method, and Speaker Unit including the same | |
| WO2021000119A1 (en) | Loudspeaker | |
| WO2009090761A1 (en) | Diaphragm for speaker, and speaker device | |
| EP2239959B1 (en) | Vibration plate, speaker, acoustic system and method of manufacturing vibration plate | |
| JP2006222652A (en) | Diaphragm for speaker, speaker unit, and speaker system | |
| CN1930911B (en) | Diaphragm and loudspeaker using same | |
| CN203984669U (en) | Bone-conduction speaker | |
| WO2021000117A1 (en) | Loudspeaker | |
| JP3646406B2 (en) | Speaker | |
| US20050058311A1 (en) | Stereo headphone | |
| CN201523435U (en) | Improved micro speaker with high frequency characteristic | |
| US20200196048A1 (en) | Speaker | |
| JPH08228392A (en) | Speaker and its production | |
| KR100965952B1 (en) | A method for making a speaker diaphragm having a support ring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181105 Address after: 518000 Maibo Science and Technology Industrial Park Office Building 203, No. 2 Baozi South Road, Kengzi Street Industrial Zone, Pingshan District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Shang LAN Bai Technology Co., Ltd. Address before: 518000 Nanshan District science and Technology Park, Nanshan District, Shenzhen, Guangdong science and technology twelve South Road, Changhong science and technology building 803-805 Patentee before: Shenzhen Microlab Electronics Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210409 Address after: 510800 101, office building, Maibo Industrial Park, 2 baozi South Road, Jinsha community, Kengzi street, Pingshan District, Shenzhen City, Guangdong Province Patentee after: Shenzhen mailan Technology Co.,Ltd. Address before: 518000 Maibo Science and Technology Industrial Park Office Building 203, No. 2 Baozi South Road, Kengzi Street Industrial Zone, Pingshan District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN SHANGLANBAI TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right |