KR101673296B1 - Pattern diaphram and method of making the same - Google Patents
Pattern diaphram and method of making the same Download PDFInfo
- Publication number
- KR101673296B1 KR101673296B1 KR1020150083444A KR20150083444A KR101673296B1 KR 101673296 B1 KR101673296 B1 KR 101673296B1 KR 1020150083444 A KR1020150083444 A KR 1020150083444A KR 20150083444 A KR20150083444 A KR 20150083444A KR 101673296 B1 KR101673296 B1 KR 101673296B1
- Authority
- KR
- South Korea
- Prior art keywords
- vibration film
- diaphragm
- voice coil
- conductive pattern
- layer
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title abstract description 11
- 230000005236 sound signal Effects 0.000 claims abstract description 9
- 230000001070 adhesive Effects 0.000 claims abstract description 5
- 239000000853 adhesive Substances 0.000 claims abstract description 5
- 238000005553 drilling Methods 0.000 claims description 2
- 238000010030 laminating Methods 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 239000004065 semiconductor Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 abstract description 37
- 239000000463 material Substances 0.000 abstract description 2
- 239000002365 multiple layer Substances 0.000 abstract description 2
- 239000010408 film Substances 0.000 description 51
- 239000000725 suspension Substances 0.000 description 7
- 238000005260 corrosion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920002530 poly[4-(4-benzoylphenoxy)phenol] polymer Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N tin hydride Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
- H04R31/003—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor for diaphragms or their outer suspension
Abstract
The present invention eliminates coil disconnection and application of expensive parts by forming a pattern in the middle of a vibration layer material (2 layer, 3 layer, multi layer) THD) uniformly, and a method of manufacturing the same. A diaphragm of the present invention comprises: a first vibration film having a pad hole for connection with a voice coil and having a damper layer; A second vibration film having a damper layer laminated with a damper layer of the first vibration film; And a conductive pattern embedded between the damper layer of the first vibration film and the damper layer of the second vibration film to transmit an audio signal to the voice coil. The conductive pattern may include a pad portion for connecting a terminal portion for receiving an external signal and a lead wire of the voice coil, and a wiring portion for connecting the terminal portion and the pad portion. The wiring portion may be implemented as a conductive adhesive, And a plurality of vibration films laminated to the second vibration film may be further provided and may be implemented in multiple layers.
Description
The present invention relates to a diaphragm for a speaker, and more particularly, to a diaphragm for a speaker, and more particularly, to a diaphragm for a speaker, which is formed by forming a pattern in the middle of a material (2 layers, 3 layers, The present invention relates to a pattern diaphragm and a method of manufacturing the same, which can simplify the speaker manufacturing process and make the characteristics (SPL / THD) uniform.
In general, a speaker is a type in which a driving source vibrates a diaphragm to generate sound, and a dynamic speaker, an electrostatic speaker, and a piezoelectric speaker (film type speaker) are classified according to a driving method of vibrating the diaphragm.
The most widely used dynamic method is also referred to as a moving coil type and basically includes a magnetic circuit composed of a magnet, a plate and a yoke and a magnetic circuit composed of a voice located in a gap of the magnetic circuit A voice coil, and a diaphragm that vibrates according to the motion of the voice coil. When a current flows through the voice coil, the voice coil is moved by the interaction with the magnetic field formed by the magnet. At this time, the vibration plate vibrates according to the movement of the voice coil, thereby generating sound.
Meanwhile, in the manufacturing process of the speaker, the voice coil is attached to the diaphragm to form a diaphragm assembly. The method of fixing the voice coil to the diaphragm is not limited to the linear type shown in Fig. 1, the floating type shown in Fig. 2, There is a suspension system shown in Fig.
1, the
However, in the case of fixing the lead wire to the diaphragm like in the prior art, since all the operations are performed by hand, it is difficult to precisely match the positions of the adhesive surfaces and the amount of the bond application is also uneven and heterogeneous sound is generated due to irregular movement and twisting motion of the diaphragm , There is a problem that it is applied only to a low output product because there is a concern that wire breakage may occur due to a change in characteristics.
In addition, as shown in FIG. 2, the Floating method in which the
SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the related art as described above, and it is an object of the present invention to provide a method and apparatus for detecting a disconnection without using an expensive component such as a suspension or an expensive equipment such as a voice coil forming And to provide a pattern diaphragm capable of improving the reliability and uniformizing the characteristics, and a method of manufacturing the same.
According to an aspect of the present invention, there is provided a diaphragm comprising: a first vibration film having a pad hole for connection with a voice coil; A second vibration film laminated with the first vibration film; And a conductive pattern embedded between the first and second vibration films to transmit an audio signal to the voice coil.
According to another aspect of the present invention, there is provided a diaphragm comprising: a first vibration film having a pad hole for connection with a voice coil and having a damper layer; A second vibration film having a damper layer laminated with a damper layer of the first vibration film; And a conductive pattern embedded between the damper layer of the first vibration film and the damper layer of the second vibration film to transmit an audio signal to the voice coil.
The conductive pattern includes a terminal portion for receiving an external signal, a pad portion for connecting the lead wire of the voice coil, and a wiring portion for connecting the terminal portion and the pad portion. The wiring portion is implemented as a conductive adhesive. The pattern diaphragm may further include a plurality of vibration films laminated to the second vibration film, and may be formed in multiple layers.
According to another aspect of the present invention, there is provided a method of manufacturing a vibration film, including: preparing a first vibration film; Drilling a pad hole for connection with the voice coil to the first vibration film; Preparing a conductive pattern of a predetermined shape; Transferring the conductive pattern to the first vibration film; Forming a diaphragm sheet by laminating a first vibration film and a second vibration film on which a conductive pattern is transferred with a conductive pattern sandwiched therebetween; And molding the diaphragm sheet into a dome and an edge to complete the diaphragm.
The first vibrating film and the second vibrating film are formed with a damper layer. The conductive pattern having a predetermined shape is transferred to the damper layer of the first vibrating film, and is then joined to the damper layer of the second vibrating film .
The pattern diaphragm according to the present invention is embedded in the vibration film in which the patterns are laminated so that the wiring pattern except for the connection portion is not exposed to the outside and the risk of disconnection can be reduced and corrosion due to oxidation and the like can be prevented, Even if used, the characteristics can be kept uniform.
Further, the pattern diaphragm according to the present invention can simplify the manufacturing process without using a high-priced part such as a suspension, thereby significantly reducing the manufacturing cost of the speaker.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing a conventional linearly-
2 is a schematic view showing a conventional floating type diaphragm assembly,
3 is a schematic view showing a conventional suspension type diaphragm assembly,
4 is a conceptual diagram of a pattern diaphragm according to the present invention,
5 is a flowchart showing a pattern diaphragm manufacturing procedure according to an embodiment of the present invention;
6 is an exploded perspective view showing a pattern diaphragm according to an embodiment of the present invention,
FIG. 7 is a combined view showing a pattern diaphragm according to an embodiment of the present invention,
8 is a cross-sectional view of a patterned diaphragm according to an embodiment of the present invention.
BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features, and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings. The following examples are merely illustrative of the present invention and are not intended to limit the scope of the present invention.
4 is a conceptual diagram of a pattern diaphragm according to the present invention, wherein (a) is an example of a two-layer diaphragm, and (b) is an example of a three-layer diaphragm.
First, the basic concept of the pattern diaphragm according to the present invention is that a
In the case where the
4 (a), an embodiment in which the
5 is a flowchart illustrating a pattern diaphragm manufacturing procedure according to a preferred embodiment of the present invention.
Referring to FIG. 5, after the
The
Then, the lapped diaphragm sheet is formed into a diaphragm shape having a dome and an edge shape, and then a pattern diaphragm is formed by tapping the outer periphery (S109, S110).
Thereafter, the
FIG. 6 is an exploded perspective view of a patterned diaphragm according to an embodiment of the present invention, and FIG. 7 is an assembled view of a patterned diaphragm according to an embodiment of the present invention, wherein (A) is a plan view and (B) is a bottom view. 8 is a cross-sectional view of a patterned diaphragm according to an embodiment of the present invention, wherein (A) is a cross-sectional view taken along line A-A of FIG. 7, and FIG.
6 to 8, a patterned
6 to 8, the
The audio signal transmitted from the terminal (not shown) to the
The speaker to which the
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
40: diaphragm 41: first vibration film
42: second vibration film 43: damper layer
45:
45b:
50: voice coil
Claims (8)
A second vibration film having a damper layer laminated with a damper layer of the first vibration film; And
And a conductive pattern embedded between the damper layer of the first vibration film and the damper layer of the second vibration film to transmit an audio signal to the voice coil.
A pad portion for connecting a terminal portion for receiving an external signal and a lead wire of the voice coil; and a wiring portion for connecting the terminal portion and the pad portion.
Wherein the patterned diaphragm is embodied as a conductive adhesive.
And a plurality of vibrating films laminated to the second vibrating film.
Drilling a pad hole for connection with the voice coil to the first vibration film;
Preparing a conductive pattern of a predetermined shape;
Transferring the conductive pattern to the first vibration film;
Forming a diaphragm sheet by laminating a first vibration film and a second vibration film on which a conductive pattern is transferred with a conductive pattern sandwiched therebetween; And
And molding the diaphragm sheet into a dome and an edge to complete the diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150083444A KR101673296B1 (en) | 2015-06-12 | 2015-06-12 | Pattern diaphram and method of making the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150083444A KR101673296B1 (en) | 2015-06-12 | 2015-06-12 | Pattern diaphram and method of making the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR101673296B1 true KR101673296B1 (en) | 2016-11-08 |
Family
ID=57528186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020150083444A KR101673296B1 (en) | 2015-06-12 | 2015-06-12 | Pattern diaphram and method of making the same |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR101673296B1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110809221A (en) * | 2019-09-17 | 2020-02-18 | 安克创新科技股份有限公司 | Vibrating diaphragm and loudspeaker |
| US11474220B2 (en) * | 2017-10-26 | 2022-10-18 | Seiko Epson Corporation | Ultrasonic device and ultrasonic measuring apparatus |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11298994A (en) * | 1998-04-16 | 1999-10-29 | Kenwood Corp | Wiring structure for loudspeaker |
| JP2007274096A (en) * | 2006-03-30 | 2007-10-18 | Yamaha Corp | Diaphragm and its production process |
| KR20140110398A (en) | 2013-03-07 | 2014-09-17 | 주식회사 비에스이 | diaphram assembly with lead pattern and method of making the diaphram assembly |
| KR20140127432A (en) * | 2013-04-24 | 2014-11-04 | 주식회사 이엠텍 | Suspension for sound transducer |
| KR200474384Y1 (en) * | 2013-03-21 | 2014-11-04 | (주) 모토텍 | Wiring member and speaker device having the same |
-
2015
- 2015-06-12 KR KR1020150083444A patent/KR101673296B1/en active IP Right Grant
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11298994A (en) * | 1998-04-16 | 1999-10-29 | Kenwood Corp | Wiring structure for loudspeaker |
| JP2007274096A (en) * | 2006-03-30 | 2007-10-18 | Yamaha Corp | Diaphragm and its production process |
| KR20140110398A (en) | 2013-03-07 | 2014-09-17 | 주식회사 비에스이 | diaphram assembly with lead pattern and method of making the diaphram assembly |
| KR200474384Y1 (en) * | 2013-03-21 | 2014-11-04 | (주) 모토텍 | Wiring member and speaker device having the same |
| KR20140127432A (en) * | 2013-04-24 | 2014-11-04 | 주식회사 이엠텍 | Suspension for sound transducer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11474220B2 (en) * | 2017-10-26 | 2022-10-18 | Seiko Epson Corporation | Ultrasonic device and ultrasonic measuring apparatus |
| CN110809221A (en) * | 2019-09-17 | 2020-02-18 | 安克创新科技股份有限公司 | Vibrating diaphragm and loudspeaker |
| CN110809221B (en) * | 2019-09-17 | 2022-02-15 | 安克创新科技股份有限公司 | Vibrating diaphragm and loudspeaker |
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