CN102395091A - Planar diaphragm speaker with driving unit - Google Patents
Planar diaphragm speaker with driving unit Download PDFInfo
- Publication number
- CN102395091A CN102395091A CN2011103014534A CN201110301453A CN102395091A CN 102395091 A CN102395091 A CN 102395091A CN 2011103014534 A CN2011103014534 A CN 2011103014534A CN 201110301453 A CN201110301453 A CN 201110301453A CN 102395091 A CN102395091 A CN 102395091A
- Authority
- CN
- China
- Prior art keywords
- voice coil
- speaker
- magnet
- loud speaker
- iron frame
- 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.)
- Pending
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 48
- 229910052742 iron Inorganic materials 0.000 claims abstract description 24
- 235000014676 Phragmites communis Nutrition 0.000 claims description 7
- 230000001052 transient effect Effects 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000010355 oscillation Effects 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
- H04R1/2807—Enclosures comprising vibrating or resonating arrangements
- H04R1/283—Enclosures comprising vibrating or resonating arrangements using a passive diaphragm
- H04R1/2834—Enclosures comprising vibrating or resonating arrangements using a passive diaphragm for loudspeaker transducers
-
- 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
- H04R7/04—Plane diaphragms
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The invention provides a planar diaphragm speaker with a driving unit. The planar diaphragm speaker comprises an iron frame of the speaker, a magnet, a magnetic conduction sheet and a voice coil, wherein the magnet and the magnetic conduction sheet are arranged in the iron frame; the voice coil is arranged between the iron frame and the magnet; one end of the voice coil is adhered to a step, in the middle of a cavity of the iron frame, of a butterfly vibration sheet; a front cavity of the speaker is formed at an opening of the iron frame in front of the butterfly vibration sheet; a planar diaphragm is arranged in a protruded spigot of a port of the front cavity to form a front chamber of the speaker; and air vent holes which are uniformly distributed are formed in an annular bottom surface of the front cavity. A moving coil loudspeaker which is formed by using the magnet and the magnetic conduction sheet in the iron frame and the voice coil serves as the driving unit; an audio current passes through the voice coil to generate an alternating magnetic field; the alternating magnetic field and a fixed magnetic field of the magnet attract each other and repel each other to form an air flow which pushes a vibration diaphragm to vibrate; and the front chamber uniformly pushes the planar diaphragm to vibrate so as to make a sound of the speaker. The planar diaphragm speaker with the driving unit has uniform and good transient response, lower distortion rate and excellent tone.
Description
Technical field
The invention belongs to technical field of electronic products, relate to a kind of earphone speaker, be specifically related to a kind of plane diaphragm loud speaker with driver element.
Background technology
The vibrating diaphragm of general moving-coil speaker all is a circular arc; All striped can be arranged in order to strengthen its rigid surface; And be the vibration that promotes whole vibrating diaphragm by the core of the diaphragm of loudspeaker, because the Oscillation Amplitude of each point is different on the diaphragm, transient response and distortion rate are difficult to control well.But but obtained using widely because it is simple in structure, manufacture difficulty is little, cost is low.The diaphragm mass of flat film loudspeaker is light, and vibration evenly and good transient response and lower distortion rate arranged.But; Because at present due to the design feature of plane diaphragm loud speaker; The power of plane diaphragm loudspeaker vibration is by directly being attached to the coil cutting magnetic line on the plane diaphragm; Perhaps lean on the mechanical fixation ways of connecting directly to promote the plane diaphragm vibration, transfer of vibration efficient is low, the structure relative complex, manufacture difficulty is big, cost is high, therefore can't be widely used.
Summary of the invention
The purpose of this invention is to provide a kind of modern design; Simple in structure, have the plane diaphragm loud speaker of driver element, it is to lean on the fixed magnetic field of alternating magnetic field that tone currents produces through voice coil loudspeaker voice coil and magnet to produce to attract and repulsion; Promote vibrating membrane and produce vibratory flow; Promote plane diaphragm vibration equably and sound through ante-chamber again, and the size of the air-vent that is provided with through ante-chamber and the change of quantity regulate Air permenbility, reach the Oscillation Amplitude and the frequency response curve of adjusting plane diaphragm.Because the improvement of plane diaphragm loadspeaker structure has reduced its manufacture difficulty and cost, solved that existing plane diaphragm loud speaker exists can't extensive use problem.
The technical scheme that the present invention adopted is; A kind of plane diaphragm loud speaker with driver element; Comprise the iron basin frame of loud speaker and be arranged at magnet, the magnetic conduction sheet in the iron basin frame, and the voice coil loudspeaker voice coil that is equipped with between iron basin frame and the magnet, an end of said voice coil loudspeaker voice coil is bonded at the step place that the butterfly vibrating reed places iron basin frame cavity middle part; The open-mouth of square iron basin frame is embedded with the preceding cavity of loud speaker before the butterfly vibrating reed, constitutes the ante-chamber of loud speaker before plane diaphragm is loaded in the seam of cavity port protrusion.
Plane diaphragm loud speaker with driver element of the present invention, its characteristic also be,
On the cavity annular floor, be provided with equally distributed air-vent before described.
The present invention has the plane diaphragm loud speaker of driver element; Through magnet, the magnetic conduction sheet in the iron basin frame; And the moving-coil loudspeaker that voice coil loudspeaker voice coil is formed are done driver element; Lean on the fixed magnetic field of alternating magnetic field that tone currents produces through voice coil loudspeaker voice coil and magnet to produce to attract and repel, form and promote the vibrative air-flow of vibrating membrane, the plane diaphragm 7 in the vibratory flow seam that the cavity port protrudes through ante-chamber promotes to be loaded on equably before again vibrates and sends the sound of loud speaker.
Because the present invention adopts to attach voice coil loudspeaker voice coil above the plane diaphragm and promote plane diaphragm by mechanical structure; What therefore this vibrating diaphragm was done is very frivolous, because the flat film vibration of loud speaker, the active force that generation promotes is even, conversion efficiency is high; Transient response is good, and distortion rate is low.Therefore the present invention has evenly and has good transient response and lower distortion rate; And it is also through changing the size and the quantity regulating Air permenbility of air-vent on the preceding cavity ring-type bottom surface; Reach Oscillation Amplitude and the frequency response curve of regulating plane diaphragm, make tone color and tone graceful more.
In addition, because the improvement of loadspeaker structure has also reduced plane diaphragm loud speaker manufacture difficulty and cost, it is widely used.
Description of drawings
Fig. 1 is the plane diaphragm loadspeaker structure sketch map that the present invention has driver element;
Fig. 2 is the plane diaphragm loud speaker bottom view that the present invention has driver element.
Among the figure, 1. iron basin frame, 2. magnet, 3. magnetic conduction sheet, 4. voice coil loudspeaker voice coil, 5. butterfly vibrating reed, 6. before cavity, 7. plane diaphragm, 8. seam, 9. ante-chamber, 10. air-vent.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is elaborated.
A kind of plane diaphragm loud speaker with driver element; As shown in Figure 1; Comprise the iron basin frame 1 of loud speaker and be arranged at magnet 2, the magnetic conduction sheet 3 in the iron basin frame 1, and the voice coil loudspeaker voice coil that is equipped with 4 between iron basin frame 1 and the magnet 2, an end of said voice coil loudspeaker voice coil 4 is bonded at the step place that butterfly vibrating reed 5 places iron basin frame 1 cavity middle part; The open-mouth of square iron basin frame 1 is embedded with the preceding cavity 6 of loud speaker before butterfly vibrating reed 5; Constitute the ante-chamber 9 of loud speaker before plane diaphragm 7 is loaded in the seam 8 of cavity 6 ports protrusion, on described preceding cavity 6 annular floor, be provided with equally distributed air-vent 10.
The present invention has the plane diaphragm loud speaker of driver element; Through the magnet 2 in the iron basin frame 1, magnetic conduction sheet 3; And the moving-coil loudspeaker that voice coil loudspeaker voice coil 4 is formed are done driver element; Lean on the fixed magnetic field of alternating magnetic field that tone currents produces through voice coil loudspeaker voice coil and magnet to produce to attract and repel, form and promote the vibrative air-flow of vibrating membrane, the plane diaphragm 7 in the vibratory flow seam 8 that cavity 6 ports protrude before ante-chamber 9 promotes to be loaded on equably again vibrates and sends the sound of loud speaker.
Because the present invention adopts above the existing flat film loudspeaker subsidiary voice coil loudspeaker voice coil and promotes plane diaphragm by mechanical structure, thus this plane diaphragm 7 can do very frivolous; The active force that promotes plane diaphragm 7 is even, conversion efficiency is high because the flat film vibration of preceding cavity 6, this loud speaker produce, and transient response is good, and distortion rate is low.Therefore the present invention has evenly and has good transient response and lower distortion rate; And it is also through the size of air-vent 10 and the vibration characteristics that the quantity regulating Air permenbility is regulated plane diaphragm on the cavity ring-type bottom surface before changing; Let plane diaphragm can reach the required conversion efficiency of flat film loudspeaker, Oscillation Amplitude and frequency response curve, make tone color and tone graceful more.
Above-mentioned execution mode is an instance of the present invention, is not to be used for limiting working of an invention and interest field, and all equivalences of making according to the described content of patent protection scope of the present invention change and modify, and all should be included in the claim of the present invention.
Claims (2)
1. plane diaphragm loud speaker with driver element; Comprise the iron basin frame (1) of loud speaker and be arranged at magnet (2), the magnetic conduction sheet (3) in the iron basin frame (1); And the voice coil loudspeaker voice coil that is equipped with (4) between iron basin frame (1) and the magnet (2); It is characterized in that; One end of said voice coil loudspeaker voice coil (4) is bonded at the step place that butterfly vibrating reed (5) places iron basin frame (1) cavity middle part, is embedded with the preceding cavity (6) of loud speaker in the open-mouth of butterfly vibrating reed (5) preceding square iron basin frame (1), and plane diaphragm (7) is loaded on the ante-chamber (9) that constitutes loud speaker in the seam (8) of preceding cavity (6) port protrusion.
2. the plane diaphragm loud speaker with driver element according to claim 1 is characterized in that, on described preceding cavity (6) annular floor, is provided with equally distributed air-vent (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103014534A CN102395091A (en) | 2011-09-28 | 2011-09-28 | Planar diaphragm speaker with driving unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103014534A CN102395091A (en) | 2011-09-28 | 2011-09-28 | Planar diaphragm speaker with driving unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102395091A true CN102395091A (en) | 2012-03-28 |
Family
ID=45862287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103014534A Pending CN102395091A (en) | 2011-09-28 | 2011-09-28 | Planar diaphragm speaker with driving unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102395091A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102756396A (en) * | 2012-07-16 | 2012-10-31 | 刘天镐 | Laser drilling method for miniature loudspeaker brackets |
| CN103763659A (en) * | 2013-12-31 | 2014-04-30 | 立锜科技股份有限公司 | Generating device and method of driving signals of loudspeaker |
| CN105072527A (en) * | 2015-07-20 | 2015-11-18 | 朝阳聚声泰（信丰）科技有限公司 | In-ear receiver |
| CN106028213A (en) * | 2016-05-18 | 2016-10-12 | 李世煌 | Acoustic structure using passive vibrating diaphragm unit |
| CN109951769A (en) * | 2017-12-20 | 2019-06-28 | 富电电子株式会社 | Stereo set with multiple oscillating plates |
| FR3142857A1 (en) * | 2022-12-01 | 2024-06-07 | Psa Automobiles Sa | SPEAKER FOR A MOTOR VEHICLE AND MOTOR VEHICLE COMPRISING SUCH A SPEAKER |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003289595A (en) * | 2002-03-27 | 2003-10-10 | Citizen Electronics Co Ltd | Speaker |
| CN1575035A (en) * | 2003-06-10 | 2005-02-02 | 松下电器产业株式会社 | Loudspeaker device |
| CN1717954A (en) * | 2003-10-16 | 2006-01-04 | 松下电器产业株式会社 | Speaker, speaker module, and electronic apparatus using the speaker module |
| CN101040563A (en) * | 2005-02-07 | 2007-09-19 | 松下电器产业株式会社 | Loudspeaker |
-
2011
- 2011-09-28 CN CN2011103014534A patent/CN102395091A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003289595A (en) * | 2002-03-27 | 2003-10-10 | Citizen Electronics Co Ltd | Speaker |
| CN1575035A (en) * | 2003-06-10 | 2005-02-02 | 松下电器产业株式会社 | Loudspeaker device |
| CN1717954A (en) * | 2003-10-16 | 2006-01-04 | 松下电器产业株式会社 | Speaker, speaker module, and electronic apparatus using the speaker module |
| CN101040563A (en) * | 2005-02-07 | 2007-09-19 | 松下电器产业株式会社 | Loudspeaker |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102756396A (en) * | 2012-07-16 | 2012-10-31 | 刘天镐 | Laser drilling method for miniature loudspeaker brackets |
| CN102756396B (en) * | 2012-07-16 | 2015-07-15 | 刘天镐 | Laser drilling method for miniature loudspeaker brackets |
| CN103763659A (en) * | 2013-12-31 | 2014-04-30 | 立锜科技股份有限公司 | Generating device and method of driving signals of loudspeaker |
| CN105072527A (en) * | 2015-07-20 | 2015-11-18 | 朝阳聚声泰（信丰）科技有限公司 | In-ear receiver |
| CN106028213A (en) * | 2016-05-18 | 2016-10-12 | 李世煌 | Acoustic structure using passive vibrating diaphragm unit |
| CN109951769A (en) * | 2017-12-20 | 2019-06-28 | 富电电子株式会社 | Stereo set with multiple oscillating plates |
| FR3142857A1 (en) * | 2022-12-01 | 2024-06-07 | Psa Automobiles Sa | SPEAKER FOR A MOTOR VEHICLE AND MOTOR VEHICLE COMPRISING SUCH A SPEAKER |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
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Application publication date: 20120328 |