CN103763666A - Frequency division type panel earphone - Google Patents
Frequency division type panel earphone Download PDFInfo
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- CN103763666A CN103763666A CN201410008465.1A CN201410008465A CN103763666A CN 103763666 A CN103763666 A CN 103763666A CN 201410008465 A CN201410008465 A CN 201410008465A CN 103763666 A CN103763666 A CN 103763666A
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- subcoil
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- vibrating diaphragm
- frequency division
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Abstract
The invention relates to a frequency division type panel earphone. The frequency division type panel earphone comprises two panel loudspeakers, wherein each panel loudspeaker comprises a vibrating diaphragm and a permanent magnet, the periphery of each vibrating diaphragm is fixed to a frame, and each permanent magnet is arranged at the position opposite to the position of a voice coil laid on the corresponding vibrating diaphragm. The frequency division type panel earphone is characterized in that the coil on each panel loudspeaker is composed of at least two sub-coils. The frequency division type panel earphone further comprises a frequency dividing circuit, wherein the sub-coils of the panel loudspeakers are electrically connected to different output ends of the frequency dividing circuit respectively. Compared with the prior art, the frequency division type panel earphone has the advantages that due to the facts that the frequency dividing circuit is arranged, and the sub-coils which are electrically connected to the different output ends of the frequency dividing circuit respectively are arranged on the vibrating diaphragms, loudspeaker vibrating diaphragm coils are formed by the sub-coils in a combination mode, the sub-coils correspond to different frequencies respectively, the sound characteristics are controlled through control over the positions, the lengths, the areas and frequency division points of the sub-coils, and the good sound production effect is achieved.
Description
Technical field
The present invention relates to earphone technical field, relate in particular to the dull and stereotyped earphone of a kind of frequency division formula.
Background technology
Flat earphone combines the advantage of moving-coil earphone and electrostatic earphone, compares the electrostatic better performance that has aspect low frequency, and aspect high frequency, is also better than moving-coil type.The structure of the loud speaker of its core is generally and in yoke, disposes side by side multiple strip-shaped permanent-magnet bodies, with respect to the magnetic pole strength configured in parallel of these permanent magnets, has vibrating diaphragm, on vibrating diaphragm, is provided with coil with the opposed position of permanent magnet.Electric current and the magnetic field orthotropic being generated by permanent magnet that coil inside is mobile, so, by the alternating current that circulates in coil, coil produces the power of deferring to Faraday's law, under the effect of this power, vibrating diaphragm vibrates in vertical direction, and this ac current signal is transformed to voice signal.Referring to Fig. 1, it is a typical panel speaker diaphragm structure, comprises the vibrating diaphragm 1 that periphery is supported by framework 2, and the coil on vibrating diaphragm 1 is electrically connected with wire 3.
Existing dull and stereotyped earphone is all full frequency speaker unit, due to ability and the structural limitations of loudspeaker unit self, is difficult to cover whole frequency ranges, causes playback undesirable.There is no at present a kind of dull and stereotyped earphone of frequency division formula.
Summary of the invention
The object of the embodiment of the present invention is the shortcoming for prior art, the dull and stereotyped earphone of a kind of frequency division formula is proposed, by frequency dividing circuit is set, and subcoil on many different outputs that are electrically connected at respectively frequency dividing circuit is set on vibrating diaphragm, the diaphragm of loudspeaker coil that multiple subcoils constitute thus, and each subcoil is responsible for respectively different frequencies, by position, length, area and the part-frequency point of controlling subcoil, controls sound property, has reached good sounding effect.
In order to reach foregoing invention object, the dull and stereotyped earphone of a kind of frequency division formula that the present invention proposes, is achieved through the following technical solutions:
The dull and stereotyped earphone of a kind of frequency division formula, comprise two flat panel speakers, described flat panel speaker comprises that periphery is fixed on the vibrating diaphragm on framework, and with this vibrating diaphragm on the opposed permanent magnet in voice coil loudspeaker voice coil position that is covered with, it is characterized in that: the coil on described flat panel speaker consists of at least two subcoils; In addition, described dull and stereotyped earphone also includes a frequency dividing circuit, and the subcoil of described flat panel speaker is electrically connected at respectively on the different outputs of described frequency dividing circuit.
Described coil by the first subcoil and the second subcoil form, described the first subcoil and the second subcoil described vibrating diaphragm projection in the plane do not overlap.
Described the first subcoil is formed by the first conductor material rule wiring, and described the second subcoil is connected up and formed by the second conductor material rule, and described the first subcoil and the second subcoil described vibrating diaphragm projection in the plane do not overlap; Described the second conductor material is selected from the one in gold and platinum; In described vibrating diaphragm place plane, the first subcoil quality of same projection area is 2-30 times of the second subcoil.
Described the first subcoil is formed on a side surface of described vibrating diaphragm, and described the second subcoil is formed on the opposite side surface of described vibrating diaphragm.
Described the first subcoil and the second subcoil are all formed on the same face of described vibrating diaphragm.
The material of described the first conductor is selected from the one in carbon, copper, aluminium, silver, copper alloy and aluminium alloy.
Described the first subcoil length is the 30%-300% of the second subcoil length, and the projected area of the first subcoil is the projected area 30%-300% of the second subcoil; The quality of the first subcoil of same projection area is 2-20 times of the second subcoil.
Described the first subcoil length is the 50%-200% of the second subcoil length, and the projected area of the first subcoil is the projected area 50%-200% of the second subcoil; The quality of the first subcoil of same projection area is 5-10 times of the second subcoil.
Described voice coil loudspeaker voice coil is around the central rotation symmetry of described vibrating diaphragm, and described the first subcoil and the second subcoil are all full of twists and turns serpentine configuration.
Described the first conductor is aluminium, described the second conductor is gold, the thickness of described the first subcoil is 0.3-10 micron, and the thickness of described the second subcoil is 50-1000 nanometer, and described the second subcoil and the first subcoil all obtain on described vibrating diaphragm surface by gas phase or liquid deposition.
Compared with prior art, the invention has the beneficial effects as follows: by frequency dividing circuit is set, and subcoil on many different outputs that are electrically connected at respectively frequency dividing circuit is set on vibrating diaphragm, the diaphragm of loudspeaker coil that multiple subcoils constitute thus, and each subcoil is responsible for respectively different frequencies, by position, length, area and the part-frequency point of controlling subcoil, control sound property, reached good sounding effect.
Accompanying drawing explanation
By the description of its exemplary embodiment being carried out below in conjunction with accompanying drawing, the above-mentioned feature and advantage of the present invention will become apparent and easily understand.
Fig. 1 is existing panel speaker diaphragm structure schematic diagram;
Fig. 2 is embodiment of the present invention vibrating diaphragm first surface part-structure schematic diagram;
Fig. 3 is embodiment of the present invention vibrating diaphragm second surface part-structure schematic diagram;
Fig. 4 is embodiment of the present invention Headphone structure schematic diagram;
Fig. 5 is embodiment of the present invention earphone principle schematic.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail, so that technical staff's of the same trade understanding:
As Figure 1-5, label represents respectively:
Vibrating diaphragm 1, framework 2, wire 3, the first subcoil 4, the second subcoil 5, headband 6, left earmuff 7, right earcup 8, frequency dividing circuit 9, power amplification circuit 10.
Shown in Fig. 2-3, first the present embodiment 1 proposes a kind of flat earphone, there is headband 6, be located at headband 6 two ends left earmuff 7 and right earcup 8, be placed in the flat panel speaker of left and right earmuff.The structure of flat panel speaker is identical with conventional panel speaker structure, comprises a vibrating diaphragm 1 being fixed on framework 2, and with described vibrating diaphragm 1 on the opposed permanent magnet of coil position.Permanent magnet can be located at the both sides (push-pull type) of vibrating diaphragm 1 or only be located at a side (acyclic type).Because this structure is those skilled in the art's technology of commonly seeing, and do not belong to design main points of the present invention, therefore do not repeat them here.
Vibrating diaphragm 1 be shaped as circle, its periphery is fixed on framework 2, on described vibrating diaphragm 1, is provided with coil, is also provided with the wire 3 being electrically connected with coil on framework 2.Be different from existing dull and stereotyped earphone diaphragm, described coil is constituted by the first subcoil 4 and the second subcoil 5.The first subcoil 4 is arranged on the first surface of vibrating diaphragm 1, and the second subcoil 5 is arranged on the second surface of relative first surface.Wherein:
The second subcoil 5 is formed by the second conductor material rule wiring, and is located at the center of described vibrating diaphragm 1.The second subcoil 5 is full of twists and turns serpentine configuration.In the present embodiment, the second conductor material is gold, and the second subcoil 5 is by gas phase or liquid deposition, to obtain on the second surface of vibrating diaphragm, and the thickness of the second subcoil 5 should be uniform as much as possible.Obviously, it will be understood by those skilled in the art that this second subcoil 5 also can obtain by other technology that can form conductor layer on vibrating diaphragm in prior art.
The first subcoil 4 is formed by the first conductor material rule wiring.In the present embodiment, the material of the first conductor is aluminium, and the first subcoil 4 can obtain on vibrating diaphragm 1 surface by gas phase or liquid deposition equally, and thickness is also even as much as possible simultaneously.Identical with the structure of the second subcoil 5, two the first subcoils 45 are full of twists and turns serpentine configuration equally, two the first subcoils 4 are located at the both sides of described the second subcoil 5, and described the first subcoil 4 and the second subcoil 5 do not overlap in the projection in the plane of 1 of vibrating diaphragm, are roughly laid in substantially uniformly generally on vibrating diaphragm 1.Meanwhile, the voice coil loudspeaker voice coil assembly consisting of the first subcoil 4 and the second subcoil 5 is around the central rotation symmetry of described vibrating diaphragm 1.
The object of design is like this, in flat panel speaker design, mass of coil has direct impact for loud speaker sounding effect, when voice coil loudspeaker voice coil is heavier, can make high frequency response low, and make the resonance cycle of high range low, and when oscillating mass is large, because inertia is larger, make the transient response variation of sound.The second subcoil 5 adopts ductility, and good gold is made, and has significantly reduced the quality of coil, has therefore obtained fabulous transient state and parsing power.The first subcoil 4 adopts that density is light, the poor aluminium of ductility, with this, suitably improves coil gross mass, when reducing transient state and high frequency characteristics, promotes low frequency characteristic.
All draw by the wire 3 of being located on framework 2 at the two ends of the first subcoil 4 and the second subcoil 5.In addition, the two ends that in the present embodiment, earphone also includes frequency dividing circuit 9, the first subcoils 4 and the second subcoil 5 are electrically connected at respectively on the different outputs of described frequency dividing circuit.Wherein the second subcoil 5 is connected on the middle and high tone signal output of frequency dividing circuit 9, for the middle and high sound of playback; The first subcoil 4 is connected on the low frequency signal output of frequency dividing circuit 9, for playback low frequency.
Frequency dividing circuit 9 adopts the frequency dividing circuit of existing earphone, audio amplifier, and the part-frequency point of frequency dividing circuit 9 is to determine according to the feature of the electroacoustic performance of the first subcoil 4 and the second subcoil 5 and frequency dividing circuit 9.Because structure and the electric connection mode of frequency dividing circuit 9 are known to the skilled person technology, therefore do not repeat them here.
Shown in Figure 5, the signal source of source of sound (as CD player) output is amplified into frequency dividing circuit 9 through power amplification circuit 10, frequency dividing circuit 9 resolves into high middle pitch and bass by audio signal, then by high middle pitch and bass channel, drive the first subcoil 4 and the second subcoil 5 respectively, the first subcoil 4 and the second subcoil 5 are responsible for respectively different frequency ranges, realize thus 20～20000HZ frequency range true reappearance that people's ear can the sense of hearing.
Guaranteeing enough stablizing under vibrational state, reduce as far as possible again under the prerequisite of mass of coil, the thickness of described the first subcoil 4 is 0.3-10 micron, the thickness of described the second subcoil 5 is 50-1000 nanometer.This is because golden ductility is higher than aluminium, therefore the thickness of the second subcoil 5 is can relative the first subcoil 4 thin a lot.Just based on this, the quality of the first subcoil 4 of same projection area will be far above the second subcoil 5, and another goal of the invention of the present invention is controlled the sound property of transducer just by controlling the length of two kinds of coils and area ratio, make low, high frequency response and transient state more balanced.
Applicant is finding through repetition test with after studying for a long time, when paying after long-term and arduous work, is finding:
When under same projection area condition, the quality of the first subcoil 4 should be controlled at 2-30 times of the second subcoil 5.
Preferably, described the first subcoil 4 length are the 30%-300% of the second subcoil 5 length, and the projected area of the first subcoil 4 is the projected area 30%-300% of the second subcoil 5; The quality of the first subcoil 4 of same projection area is 2-20 times of the second subcoil 5.
Further preferred, described the first subcoil 4 length are the 50%-200% of the second subcoil 5 length, and the projected area of the first subcoil 4 is the projected area 50%-200% of the second subcoil 5; The quality of the first subcoil 4 of same projection area is 5-10 times of the second subcoil 5.
By embodiment, for invention intention of the present invention and execution mode, be elaborated above; but one of ordinary skill in the art of the present invention are appreciated that; the above embodiment of the present invention is only one of the preferred embodiments of the present invention; for length restriction; here can not all execution modes of particularize; any enforcement that can embody the claims in the present invention technical scheme, all in protection scope of the present invention.
It should be noted that; above content is in conjunction with concrete execution mode further description made for the present invention; can not assert that the specific embodiment of the present invention only limits to this; under the guidance of above-described embodiment; those skilled in the art can carry out various improvement and distortion on the basis of above-described embodiment, and these improvement or distortion drop in protection scope of the present invention.
Claims (10)
1. the dull and stereotyped earphone of frequency division formula, comprise two flat panel speakers, described flat panel speaker comprises that periphery is fixed on the vibrating diaphragm on framework, and with this vibrating diaphragm on the opposed permanent magnet in voice coil loudspeaker voice coil position that is covered with, it is characterized in that: the coil on described flat panel speaker consists of at least two subcoils; In addition, described dull and stereotyped earphone also includes a frequency dividing circuit, and the subcoil of described flat panel speaker is electrically connected at respectively on the different outputs of described frequency dividing circuit.
2. the dull and stereotyped earphone of a kind of frequency division formula according to claim 1, is characterized in that: described coil by the first subcoil and the second subcoil form, described the first subcoil and the second subcoil described vibrating diaphragm projection in the plane do not overlap.
3. the dull and stereotyped earphone of a kind of frequency division formula according to claim 2, it is characterized in that: described the first subcoil is formed by the first conductor material rule wiring, described the second subcoil is formed by the second conductor material rule wiring, and described the first subcoil and the second subcoil described vibrating diaphragm projection in the plane do not overlap; Described the second conductor material is selected from the one in gold and platinum; In described vibrating diaphragm place plane, the first subcoil quality of same projection area is 2-30 times of the second subcoil.
4. the dull and stereotyped earphone of a kind of frequency division formula according to claim 3, is characterized in that: described the first subcoil is formed on a side surface of described vibrating diaphragm, and described the second subcoil is formed on the opposite side surface of described vibrating diaphragm.
5. the dull and stereotyped earphone of a kind of frequency division formula according to claim 3, is characterized in that: described the first subcoil and the second subcoil are all formed on the same face of described vibrating diaphragm.
6. according to the dull and stereotyped earphone of a kind of frequency division formula described in claim 3-5 any one, it is characterized in that: the material of described the first conductor is selected from the one in carbon, copper, aluminium, silver, copper alloy and aluminium alloy.
7. the dull and stereotyped earphone of a kind of frequency division formula according to claim 6, is characterized in that: described the first subcoil length is the 30%-300% of the second subcoil length, and the projected area of the first subcoil is the projected area 30%-300% of the second subcoil; The quality of the first subcoil of same projection area is 2-20 times of the second subcoil.
8. the dull and stereotyped earphone of a kind of frequency division formula according to claim 7, is characterized in that: described the first subcoil length is the 50%-200% of the second subcoil length, and the projected area of the first subcoil is the projected area 50%-200% of the second subcoil; The quality of the first subcoil of same projection area is 5-10 times of the second subcoil.
9. the dull and stereotyped earphone of a kind of frequency division formula according to claim 8, is characterized in that: described voice coil loudspeaker voice coil is around the central rotation symmetry of described vibrating diaphragm, and described the first subcoil and the second subcoil are all full of twists and turns serpentine configuration.
10. the dull and stereotyped earphone of a kind of frequency division formula according to claim 9, it is characterized in that: described the first conductor is aluminium, described the second conductor is gold, the thickness of described the first subcoil is 0.3-10 micron, the thickness of described the second subcoil is 50-1000 nanometer, and described the second subcoil and the first subcoil all obtain on described vibrating diaphragm surface by gas phase or liquid deposition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410008465.1A CN103763666B (en) | 2014-01-04 | 2014-01-04 | Frequency division type flat-panel earphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410008465.1A CN103763666B (en) | 2014-01-04 | 2014-01-04 | Frequency division type flat-panel earphone |
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| Publication Number | Publication Date |
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| CN103763666A true CN103763666A (en) | 2014-04-30 |
| CN103763666B CN103763666B (en) | 2021-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410008465.1A Active CN103763666B (en) | 2014-01-04 | 2014-01-04 | Frequency division type flat-panel earphone |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017219743A1 (en) * | 2016-06-21 | 2017-12-28 | 东莞力音电子有限公司 | Voice coil provided with multiple independent current input ends and multiple independent current output ends |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080063235A1 (en) * | 2004-05-27 | 2008-03-13 | Matsushita Electric Industrial Co., Ltd. | Loudspeaker |
| CN201252635Y (en) * | 2008-08-27 | 2009-06-03 | 捷音特科技股份有限公司 | Double-frequency coaxial earphones with shared magnet |
| CN101547393A (en) * | 2009-02-12 | 2009-09-30 | 杭州联声电子有限公司 | Flat film loudspeaker |
| CN101867856A (en) * | 2009-04-17 | 2010-10-20 | 佘天白 | Double-sided sounding frequency-dividing loudspeaker |
| JP2012100233A (en) * | 2010-10-06 | 2012-05-24 | Toa Corp | Thin double-sided speaker |
-
2014
- 2014-01-04 CN CN201410008465.1A patent/CN103763666B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080063235A1 (en) * | 2004-05-27 | 2008-03-13 | Matsushita Electric Industrial Co., Ltd. | Loudspeaker |
| CN201252635Y (en) * | 2008-08-27 | 2009-06-03 | 捷音特科技股份有限公司 | Double-frequency coaxial earphones with shared magnet |
| CN101547393A (en) * | 2009-02-12 | 2009-09-30 | 杭州联声电子有限公司 | Flat film loudspeaker |
| CN101867856A (en) * | 2009-04-17 | 2010-10-20 | 佘天白 | Double-sided sounding frequency-dividing loudspeaker |
| JP2012100233A (en) * | 2010-10-06 | 2012-05-24 | Toa Corp | Thin double-sided speaker |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017219743A1 (en) * | 2016-06-21 | 2017-12-28 | 东莞力音电子有限公司 | Voice coil provided with multiple independent current input ends and multiple independent current output ends |
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| Publication number | Publication date |
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| CN103763666B (en) | 2021-08-31 |
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Effective date of registration: 20210623 Address after: 2 / F, North building, 1339 Shuixiu Road, Yushan Town, Kunshan City, Suzhou City, Jiangsu Province Applicant after: HEAD-DIRECT (KUNSHAN) Co.,Ltd. Address before: Block b-824, No.5, Lanyuan Road, Huayuan Industrial Park, Binhai New Area, Tianjin Applicant before: HIFIMAN (TIANJIN) TECHNOLOGY Co.,Ltd. |
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Address after: No. 2001, Yingbin West Road, Bacheng Town, Kunshan City, Suzhou City, Jiangsu Province, 215311 Patentee after: Kunshan Haifeiman Technology Group Co.,Ltd. Address before: 2 / F, North building, 1339 Shuixiu Road, Yushan Town, Kunshan City, Suzhou City, Jiangsu Province Patentee before: HEAD-DIRECT (KUNSHAN) Co.,Ltd. |
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Address after: 215300 No. 2001 Yingbin West Road, Bacheng Town, Kunshan City, Suzhou City, Jiangsu Province Patentee after: Kunshan Haifeiman Technology Group Co.,Ltd. Address before: No. 2001, Yingbin West Road, Bacheng Town, Kunshan City, Suzhou City, Jiangsu Province, 215311 Patentee before: Kunshan Haifeiman Technology Group Co.,Ltd. |
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