KR20150112644A - Flat type speaker - Google Patents
Flat type speaker Download PDFInfo
- Publication number
- KR20150112644A KR20150112644A KR1020140037214A KR20140037214A KR20150112644A KR 20150112644 A KR20150112644 A KR 20150112644A KR 1020140037214 A KR1020140037214 A KR 1020140037214A KR 20140037214 A KR20140037214 A KR 20140037214A KR 20150112644 A KR20150112644 A KR 20150112644A
- Authority
- KR
- South Korea
- Prior art keywords
- pair
- magnetic body
- voice coil
- coil
- coil plate
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/04—Construction, mounting, or centering of coil
- H04R9/045—Mounting
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/04—Construction, mounting, or centering of coil
- H04R9/046—Construction
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
Description
More particularly, the present invention relates to a flat-type speaker, and more particularly, it can increase the strength of a magnetic field by winding a large amount of voice coil in a limited space, thereby increasing a speaker output. To a flat-type speaker capable of being manufactured as a single voice coil.
As is known, a speaker is an acoustic device that emits a sound wave by generating a compact wave in air by converting an electric signal into vibration of a diaphragm. The principle of vibrating the diaphragm provided in the speaker is that when the diaphragm is vibrated at a low frequency by a Lorentz force generated when a current flows through a voice coil placed in a magnetic field, bass is generated and when a high frequency is generated, At this time, if the amplitude is increased even if the frequency is the same, the sound level becomes higher and the sound becomes larger in size.
1 is an exploded perspective view showing a conventional flat type speaker.
As shown, the flat speaker according to the present invention includes a diaphragm and a voice coil plate. The voice coil plate is configured such that at least one end face
On one side of the single-sided
2 is a plan view showing a conventional voice coil board for a flat type speaker.
2, a conventional voice coil board for a flat type speaker includes a
The conventional voice coil coils for a flat type speaker shown in FIG. 1 are inserted into the insertion grooves formed in the
When a current flows through the
However, the conventional flat type speaker thus constructed has a structure in which a large number of coils can not be wound. Therefore, in order to solve such a problem, a technique of substituting a coil by patterning using a PCB up to six layers has been disclosed.
However, in this case, in order to manufacture a speaker having a large size, a thin PCB plate must be lengthened, which may deform the shape, and there is a problem that a plurality of voice coils of a certain size must be manufactured in order to manufacture a large speaker.
SUMMARY OF THE INVENTION It is an object of the present invention to provide a planar speaker capable of increasing the intensity of a magnetic field by winding a large amount of voice coil in a limited space, have.
Another object of the present invention is to provide a flat-type speaker which can be manufactured as a single voice coil instead of a plurality of voice coils when manufacturing a large-sized speaker.
According to an aspect of the present invention, there is provided a flat speaker comprising: a diaphragm; A coil plate disposed below the diaphragm, the coil plate including a pair of left and right facing plates spaced apart from each other by a predetermined distance; A voice coil coiled in a space between the pair of plates; And a magnetic body provided outside each of the pair of plates.
Further, it is preferable that the coil plate further includes a winding portion for connecting a pair of facing plates spaced apart from each other.
It is also preferable that the voice coil is wound in a vertical direction around the winding portion.
It is preferable that the voice coil is wound in a track shape so as to have two parallel straight portions along the upper and lower portions of the winding portion.
The pair of plates may be fixed to the bottom surface of the diaphragm.
The magnetic body is preferably spaced apart from the pair of plates.
It is also preferable that the pair of magnetic bodies are formed to have different polarities in the vertical direction.
It is also preferable that the pair of magnetic bodies are disposed so that their upper and lower sides have different polarities.
In addition, the flat speaker according to the present invention includes a diaphragm; A coil plate coupled to a lower portion of the diaphragm and having a first magnetic body accommodated therein; A second magnetic body surrounding both side portions and a lower portion of the coil plate; And a voice coil wound on the outer side of the coil plate in a horizontal direction.
Further, the coil plate or the second magnetic body preferably has a concave shape in which a space is formed therein.
It is preferable that the voice coil is wound in a track shape so as to have two parallel straight portions along both side walls of the coil plate.
The coil plate is preferably fixed to the diaphragm.
The second magnetic body is preferably spaced apart from the coil plate by a predetermined distance from the bottom surface and the side surface.
It is also preferable that the first magnetic body is arranged so as to have different polarities from side to side.
It is preferable that the second magnetic body is disposed in a region adjacent to the first magnetic body with different polarities.
According to the present invention, since a large amount of voice coil is wound around a limited space, the intensity of the magnetic field can be increased, and the speaker output can be increased.
In addition, when manufacturing a speaker with a large size, it is possible to fabricate one voice coil instead of a plurality of voice coils.
1 is an exploded perspective view of a conventional flat type speaker.
Figs. 2 and 3 show a voice coil plate of the flat speaker shown in Fig. 1. Fig.
4 to 6 show a first embodiment according to the present invention.
7 to 9 show a second embodiment according to the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a configuration and an operation of an embodiment according to the present invention will be described in detail with reference to the accompanying drawings.
4 to 6 show a
The
The diaphragm is a known element that generates a vibration force by a force F1 generated by a magnetic field. At both ends of the diaphragm, a
Further, the
Therefore, in the
Further, the pair of
The
It is preferable that the pair of
The operating state of the first embodiment thus configured will be described.
First, when a current (see arrow) is applied to the
The configuration and operation of the
A
The second
Further, the
The
The
Further, it can be seen that the second
In addition, the first
The operation state of the
First, when a current (see arrow) is applied to the
200: First Embodiment
210: diaphragm 220: coil plate
230:
300: Second Embodiment
310: diaphragm 320: coil plate
330: second magnetic body 340: voice coil
350: first magnetic body
Claims (15)
A coil plate disposed below the diaphragm, the coil plate including a pair of left and right facing plates spaced apart from each other by a predetermined distance;
A voice coil coiled in a space between the pair of plates; And
And a magnetic body provided outside each of the pair of plates.
Wherein the coil plate further includes a winding portion for connecting a pair of facing plates spaced from each other.
Wherein the voice coil is wound in a vertical direction around the winding portion.
Wherein the voice coil is wound in a track shape so as to have two parallel straight portions along an upper portion and a lower portion of the winding portion.
And the pair of plates are fixed to a bottom surface of the diaphragm.
And the magnetic body is spaced apart from the pair of plates.
And the pair of magnetic bodies are formed with N poles and S poles in a vertical direction.
Wherein the pair of magnetic bodies are arranged so that their upper and lower sides have different polarities from each other.
A coil plate coupled to a lower portion of the diaphragm and having a first magnetic body accommodated therein;
A second magnetic body surrounding both side portions and a lower portion of the coil plate;
And a voice coil wound around the coil plate in a horizontal direction.
Wherein the coil plate or the second magnetic body has a concave shape in which a space is formed therein.
Wherein the voice coil is wound in a track shape so as to have two parallel straight portions along both side walls of the coil plate.
And the coil plate is fixed to the diaphragm.
And the second magnetic body is spaced apart from the coil plate by a predetermined distance from the bottom surface and the side surface.
Wherein the first magnetic body is disposed so as to have different polarities from left to right.
And wherein the second magnetic body is disposed in a region adjacent to the first magnetic body and having different polarities.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020140037214A KR20150112644A (en) | 2014-03-28 | 2014-03-28 | Flat type speaker |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020140037214A KR20150112644A (en) | 2014-03-28 | 2014-03-28 | Flat type speaker |
Publications (1)
Publication Number | Publication Date |
---|---|
KR20150112644A true KR20150112644A (en) | 2015-10-07 |
Family
ID=54343869
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020140037214A KR20150112644A (en) | 2014-03-28 | 2014-03-28 | Flat type speaker |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR20150112644A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102079372B1 (en) * | 2019-06-26 | 2020-04-07 | 대홍테크뉴(주) | Line array speaker |
WO2022265179A1 (en) * | 2021-06-17 | 2022-12-22 | 대홍테크뉴(주) | Linear speaker |
-
2014
- 2014-03-28 KR KR1020140037214A patent/KR20150112644A/en not_active Application Discontinuation
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102079372B1 (en) * | 2019-06-26 | 2020-04-07 | 대홍테크뉴(주) | Line array speaker |
EP3758390A1 (en) * | 2019-06-26 | 2020-12-30 | Daehong Technew Co., Ltd. | Line array speaker |
WO2022265179A1 (en) * | 2021-06-17 | 2022-12-22 | 대홍테크뉴(주) | Linear speaker |
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WITN | Withdrawal due to no request for examination |