CN1905758A - Band type loudspeaker and all band coaxial loudspeaker containing same - Google Patents
Band type loudspeaker and all band coaxial loudspeaker containing same Download PDFInfo
- Publication number
- CN1905758A CN1905758A CN 200510085707 CN200510085707A CN1905758A CN 1905758 A CN1905758 A CN 1905758A CN 200510085707 CN200510085707 CN 200510085707 CN 200510085707 A CN200510085707 A CN 200510085707A CN 1905758 A CN1905758 A CN 1905758A
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- middle pitch
- guiding loop
- magnetic
- loudspeaker
- magnetic guiding
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- 229910000831 Steel Inorganic materials 0.000 claims description 34
- 239000010959 steel Substances 0.000 claims description 34
- 229920003223 poly(pyromellitimide-1,4-diphenyl ether) Polymers 0.000 claims description 2
- 229920006267 polyester film Polymers 0.000 claims description 2
- 229920001721 polyimide Polymers 0.000 claims description 2
- 229910000828 alnico Inorganic materials 0.000 abstract 3
- 239000000463 material Substances 0.000 description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 1
- 239000005041 Mylar™ Substances 0.000 description 1
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910001172 neodymium magnet Inorganic materials 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Images
Landscapes
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The invention relates to a band loudspeaker and a full-band coaxial speaker. The band speaker includes a magnetic board, an alnico, a magnetic ring and a diaphragm covered with loops, which are all annular. The magnetic board locates on the upper surface of the alnico. The magnetic ring is outside the alnico and forms magnetic gap with the magnetic ring where the diaphragm is. The full-band coaxial speaker consists of treble, alto and bass loudspeakers which are coaxial. Among them, the treble one is the band loudspeaker.
Description
Technical field
The present invention relates to a kind of ribbon speaker and full range band coaxial loudspeaker.
Background technology
Full range speaker comprises high pitch loudspeaker, Squawker, woofer.Full range speaker can be by senior middle school's bass the reasonable link of frequency reach and play the gamut playback that people's ear can be heard.And in coaxial full range speaker, above-mentioned three loud speakers have a central shaft, press the sequence arrangement of high pitch loudspeaker, Squawker, woofer from inside to outside.
Ribbon speaker is that a kind of high pitch is effective, still can keep the loud speaker of flat frequency response when frequency is very high.Described in existing ribbon speaker such as the CN03224550, this utility model discloses a kind of ribbon speaker, constitute magnetic structure by annular upper conduction magnetic board, annular magnet and following T shape magnetic conductive board with center magnetic post, the center magnetic post of following T shape magnetic conductive board is positioned at the annular center of annular upper conduction magnetic board and annular magnet, between the inner ring surface of the outer cylinder of this center magnetic post and magnetic conductive board and annular magnet, form magnetic gap, the magnetic gap position of vibrating diaphragm between upper conduction magnetic board and following magnetic conductive board.
But existing ribbon speaker can't be directly used in the design of full range band coaxial loudspeaker.Main cause is that there is the narrower shortcoming of available bandwidth in the design of existing ribbon speaker.If be used for full range band design then need to expand the frequency band of its high pitch, and then needs strengthen the vibrating diaphragm size of ribbon speaker, but owing to be coaxial loudspeaker, so caused the increasing of the bass voice coil diameter in the high pitch loudspeaker vibrating diaphragm outside when doing like this, thereby cause the higher cutoff frequency of bass frequency band to reduce, become a good full range system directly causing height, middle pitch can't be connected with bass.So, the full range band coaxial loudspeaker that does not also adopt ribbon speaker to design at present.
Summary of the invention
The purpose of this invention is to provide a kind of new ribbon speaker and the full range band coaxial loudspeaker that comprises this ribbon speaker.
Ribbon speaker provided by the present invention comprises magnetic conductive board, magnet steel, magnetic guiding loop, is covered with the vibrating diaphragm of coil, wherein, described magnetic conductive board, magnet steel, magnetic guiding loop and vibrating diaphragm are annular, described magnetic conductive board is positioned at the upper surface of described magnet steel, described magnetic guiding loop is positioned at the outside of magnet steel and forms magnetic gap, the magnetic gap position of described vibrating diaphragm between magnetic conductive board and magnetic guiding loop with magnetic conductive board.
Full range band coaxial loudspeaker provided by the present invention comprises high pitch loudspeaker, Squawker and woofer, and three loud speakers are coaxial, and wherein, described high pitch loudspeaker is a ribbon speaker provided by the invention.
Ribbon speaker provided by the present invention forms magnetic circuit by magnetic conductive board, magnet steel and magnetic guiding loop, and the magnetic gap position between magnetic conductive board and magnetic guiding loop forms a dissipation magnetic field, is the work magnetic field of described ribbon speaker.When the coil on overlaying on vibrating diaphragm was connected with alternating current, the effect lower coil in work magnetic field can drive the vibrating diaphragm vibration, thereby caused that air vibration produces sound.Ribbon speaker directive property provided by the present invention is good, compares with existing ribbon speaker, and ribbon speaker volume of the present invention is little, vibrating diaphragm is little, thereby can reach the designing requirement of full range band coaxial loudspeaker.
Owing to adopted ribbon speaker provided by the present invention, full range band coaxial loudspeaker high pitch of the present invention is effective.And the structure of full range speaker provided by the present invention can be got up high pitch loudspeaker, Squawker, woofer good binding, have high, medium and low three road audio frequency, high, medium and low audio frequency can well be connected, and can play the music of gamut, and distortion is less.Owing to the coaxial formation point sound source of full frequency speaker, solved the problem of phase difference, make the music reduction perfect more.
Description of drawings
Fig. 1 is the section of structure of an embodiment of ribbon speaker of the present invention;
Fig. 2 ribbon speaker of the present invention the vibrating diaphragm schematic diagram;
Fig. 3 is the section of structure according to an embodiment of full range band coaxial loudspeaker of the present invention;
Fig. 4 is the axonometric drawing of the described embodiment of Fig. 3;
Fig. 5 is the section of structure of an embodiment of the Squawker of full range band coaxial loudspeaker of the present invention.
Embodiment
As shown in Fig. 1, Fig. 2, ribbon speaker provided by the present invention comprises magnetic conductive board 3, magnet steel 4, magnetic guiding loop 8, is covered with the vibrating diaphragm 5 of coil 15, wherein, described magnetic conductive board 3, magnet steel 4, magnetic guiding loop 8 and vibrating diaphragm 5 are annular, described magnetic conductive board 3 is positioned at the upper surface of described magnet steel 4, described magnetic guiding loop 8 is positioned at the outside of magnet steel 4 and forms magnetic gap, the magnetic gap position of described vibrating diaphragm 5 between magnetic conductive board 3 and magnetic guiding loop 8 with magnetic conductive board 3.
The material of described magnetic conductive board 3 can be selected from one or more in the known pure iron of those skilled in the art, mild steel, the steel, is preferably mild steel.Thickness is the 0.5-5 millimeter.
The material of described magnet steel 4 is preferably ndfeb magnet, and thickness is the 2-6 millimeter.Described ndfeb magnet magnetic is strong, is providing under the prerequisite of common flux, adopts the magnet steel of ndfeb magnet little more a lot of than general magnet steel volume.Ribbon speaker of the present invention is preferably used ndfeb magnet, makes that the volume of loud speaker is little, remolding sensitivity is higher.
The material of described magnetic guiding loop 8 can be selected from one or more in the known pure iron of those skilled in the art, mild steel, the steel, is preferably mild steel.Thickness is the 2-10 millimeter.
According to embodiment preferred of the present invention, the longitudinal cross-section of described magnetic guiding loop 8 be shaped as inverted T-shaped, can reduce distortion.More preferably under the situation, the longitudinal cross-section of described magnetic guiding loop 8 be shaped as inverted T-shaped, and the thickness sum of described magnetic conductive board 3 and magnet steel 4 is identical with the thickness that described magnetic guiding loop 8 is removed the inverted T shape projection, makes described vibrating diaphragm 5 be in level, can make directive property better like this.
Magnetic gap fore-and-aft distance between described magnetic conductive board 3 and the magnetic guiding loop 8 is the 3.5-20 millimeter.
The material of described vibrating diaphragm 5 can be selected from polyester film, PEI film, is preferably polyimide film (KAPTON).
Described vibrating diaphragm 5 thickness are the 0.01-0.2 millimeter, and diameter is the 8-120 millimeter, is preferably the 30-40 millimeter.
Described coil 15 is preferably from inside to outside in the shape of a spiral that shape is covered in described vibrating diaphragm 5, as shown in Figure 2.Material is an electric conducting material, as copper, iron, is preferably aluminium.Wherein, live width is preferably the 0.1-2 millimeter, and the gap between every circle is preferably the 0.03-1.5 millimeter.
Ribbon speaker provided by the present invention can also comprise the high pitch finial 1 that is positioned at magnetic conductive board 3 upper surfaces, pad 2 between high pitch finial 1 and magnetic conductive board 3, be positioned at the high pitch rosette 7 of magnetic guiding loop 8 projection upper surfaces, and between described high pitch rosette 7 and vibrating diaphragm 5, the tweeters diaphragms support 6 of firm tweeters diaphragms 5.The structure and material of above-mentioned high pitch finial 1, pad 2, high pitch rosette 7 and tweeters diaphragms support 6 is that those skilled in the art are known.
Ribbon speaker provided by the present invention forms magnetic circuits by magnetic conductive board 3, magnet steel 4 and magnetic guiding loop 8, and the magnetic gap position between magnetic conductive board 3 and magnetic guiding loop 8 forms a dissipation magnetic field, is the work magnetic field of described ribbon speaker.When the coil on overlaying on vibrating diaphragm 5 was connected with alternating current, the effect lower coil in work magnetic field can drive vibrating diaphragm 5 vibrations, thereby caused that air vibration produces sound.Ribbon speaker directive property provided by the present invention is good, compares with existing ribbon speaker, and ribbon speaker volume of the present invention is little, vibrating diaphragm is little, thereby can reach the designing requirement of full range band coaxial loudspeaker.
Shown in Fig. 3,4, full range band coaxial loudspeaker provided by the present invention comprises high pitch loudspeaker 100, and 300, three loud speakers of Squawker 200 and woofer are coaxial; Wherein, the ribbon speaker that provides for the invention described above of described high pitch loudspeaker 100.
According to provided by the invention, full range band coaxial loudspeaker, described high pitch loudspeaker 100, putting in order of Squawker 200 and woofer 300 is the putting in order of routine, and presses the sequence arrangement of high pitch loudspeaker 100, Squawker 200, woofer 300 generally speaking from inside to outside.
In the full range band coaxial loudspeaker provided by the present invention, described Squawker 200 can be selected from various Squawkers, and as Dome loudspeaker, cone loudspeaker etc., the structure of these Squawkers is that those skilled in the art are known.
According to full range band coaxial loudspeaker provided by the invention, under the preferable case, as shown in Figure 5, described Squawker 200 comprises magnetic guiding loop on the middle pitch, middle pitch magnet steel 19, middle pitch lower magnetic guiding loop 13, middle pitch vibrating diaphragm 9, middle pitch voice coil loudspeaker voice coil 10; Wherein, magnetic guiding loop, middle pitch magnet steel 19, middle pitch lower magnetic guiding loop 13, middle pitch vibrating diaphragm 9, middle pitch voice coil loudspeaker voice coil 10 are annular on the described middle pitch; Magnetic guiding loop is positioned at the upper surface of described middle pitch magnet steel 19 on the described middle pitch; At least a portion of described middle pitch lower magnetic guiding loop 13 be positioned at middle pitch magnet steel 19 the outside and with described middle pitch on magnetic guiding loop form magnetic gap; Described middle pitch vibrating diaphragm 9 is the annular vibrating diaphragm of the equal semicircle of a plurality of radiuses for the longitudinal cross-section, above the magnetic gap between magnetic guiding loop on the middle pitch and the middle pitch lower magnetic guiding loop 13; Described middle pitch voice coil loudspeaker voice coil 10 is suspended on wherein two parts that circular arc joins of described a plurality of semicircles, and is in the magnetic gap position between the magnetic guiding loop and middle pitch lower magnetic guiding loop 13 on the described middle pitch.
The structure of magnetic guiding loop, material are that those skilled in the art are known on the described middle pitch, and to be preferably the longitudinal cross-section be inverted T-shaped to magnetic guiding loop on the described middle pitch, to reduce distortion.In embodiment of the present invention, be preferably and the shared magnetic guiding loop 8 of high pitch loudspeaker.
Under the preferable case, described middle pitch lower magnetic guiding loop 13 is the porose goblet in bottom, and described middle pitch magnet steel 19 is positioned at the bottom of described goblet middle pitch lower magnetic guiding loop 13, and the sidewall of middle pitch magnet steel 19 and wall of cup form magnetic gap.
The material of described middle pitch lower magnetic guiding loop 13 is that those skilled in the art are known, and material is preferably iron.
The material of described middle pitch magnet steel 19 is preferably neodymium iron boron.Thickness is the 2-8 millimeter.
Described middle pitch vibrating diaphragm 9 is preferably the annular vibrating diaphragm that its longitudinal cross-section is the equal semicircle of two radiuses.
The internal diameter of described middle pitch vibrating diaphragm 9 is preferably the 30-40 millimeter, and external diameter is preferably the 80-90 millimeter.
The material of described middle pitch vibrating diaphragm 9 can be selected from silk cloth, is preferably mylar.Thickness is the 0.1-1 millimeter.
Described middle pitch voice coil loudspeaker voice coil 10 is the annular of metal wire coiled, and its structure is that those skilled in the art are known, and material is preferably copper cover aluminum.
Described Squawker can also comprise the middle pitch rosette 11 that is positioned at middle pitch vibrating diaphragm 9 outsides, is positioned at the middle pitch vibrating diaphragm support 12 of described middle pitch rosette 11 lower surfaces, firm middle pitch vibrating diaphragm 9, and the support 14 of described Squawker.The structure and material of above-mentioned middle pitch rosette 11, middle pitch vibrating diaphragm support 12 and Squawker support 14 is that those skilled in the art are known.
In the full range band coaxial loudspeaker provided by the present invention, wherein, woofer 300 can adopt the woofer of various routines, and it is that those skilled in the art are known.Preferred woofer is a coil-moving speaker
Under the preferable case, described full range band coaxial loudspeaker gets Squawker, and to get the ratio that voice coil loudspeaker voice coil bore and woofer get the voice coil loudspeaker voice coil bore be 1: 1.2 to 1: 2.
Full range speaker provided by the present invention also comprises lead-out terminal 18, is used for audio frequency output, and its structure and connected mode are that those skilled in the art are known.
Full range band coaxial loudspeaker provided by the present invention owing to adopted described ribbon speaker, not only can provide directive property, high pitch that audio is good, and solve the problem that existing ribbon speaker can not be made coaxial loudspeaker.In addition, described Squawker is owing to adopted described annular vibrating diaphragm, and making it can be coaxial with any ball top or the belt high pitch loudspeaker of suitable size, reaches the designing requirement of full range band coaxial loudspeaker.The structure of full range speaker provided by the present invention can be got up high pitch loudspeaker, Squawker, woofer good binding, have high, medium and low three road audio frequency, high, medium and low audio frequency can well be connected, and can play the music of gamut, and distortion is less.Because the coaxial formation point sound source of full frequency speaker, the problem of solution phase difference makes the music reduction perfect more.
Claims (16)
1, a kind of ribbon speaker, comprise magnetic conductive board, magnet steel, magnetic guiding loop, be covered with the vibrating diaphragm of coil, wherein, described magnetic conductive board, magnet steel, magnetic guiding loop and vibrating diaphragm are annular, described magnetic conductive board is positioned at the upper surface of described magnet steel, described magnetic guiding loop is positioned at the outside of magnet steel and forms magnetic gap, the magnetic gap position of described vibrating diaphragm between magnetic conductive board and magnetic guiding loop with magnetic conductive board.
2, ribbon speaker according to claim 1, wherein, the longitudinal cross-section of described magnetic guiding loop be shaped as inverted T-shaped.
3, ribbon speaker according to claim 2, wherein, the thickness sum of described magnetic conductive board and magnet steel is identical with the thickness that described magnetic guiding loop is removed the inverted T-shaped projection.
4, ribbon speaker according to claim 1, wherein, the magnetic gap fore-and-aft distance between described magnetic conductive board and the magnetic guiding loop is the 3.5-20 millimeter.
5, ribbon speaker according to claim 1, wherein, described vibrating diaphragm is polyester film, PEI film or polyimide film (KAPTON).
6, ribbon speaker according to claim 1, wherein, the thickness of described vibrating diaphragm is the 0.01-0.2 millimeter.
7, ribbon speaker according to claim 1, wherein, described coil for from inside to outside in the shape of a spiral shape be covered in described vibrating diaphragm.
8, a kind of full range band coaxial loudspeaker comprises high pitch loudspeaker, Squawker and woofer, and three loud speakers are coaxial; Wherein, described high pitch loudspeaker is any one described ribbon speaker among the claim 1-7.
9, full range band coaxial loudspeaker according to claim 8, wherein, the putting in order to from inside to outside by the sequence arrangement of high pitch loudspeaker, Squawker, woofer of described high pitch loudspeaker, Squawker and woofer.
10, full range band coaxial loudspeaker according to claim 8, wherein, described Squawker comprises magnetic guiding loop on the middle pitch, middle pitch magnet steel, middle pitch lower magnetic guiding loop, middle pitch vibrating diaphragm, middle pitch voice coil loudspeaker voice coil; Wherein, magnetic guiding loop, middle pitch magnet steel, middle pitch lower magnetic guiding loop, middle pitch vibrating diaphragm, middle pitch voice coil loudspeaker voice coil are annular on the described middle pitch; Magnetic guiding loop is positioned at the upper surface of described middle pitch magnet steel on the described middle pitch; At least a portion of described middle pitch lower magnetic guiding loop be positioned at the middle pitch magnet steel the outside and with described middle pitch on magnetic guiding loop form magnetic gap; Described middle pitch vibrating diaphragm is that the longitudinal cross-section is the annular vibrating diaphragm of the equal semicircle of a plurality of radiuses, above the magnetic gap between magnetic guiding loop on the middle pitch and the middle pitch lower magnetic guiding loop; Described middle pitch voice coil loudspeaker voice coil is suspended on wherein two parts that circular arc joins of described a plurality of semicircles, and is in the magnetic gap position between the magnetic guiding loop and middle pitch lower magnetic guiding loop on the described middle pitch.
11, full range band coaxial loudspeaker according to claim 10, wherein, magnetic guiding loop is the magnetic guiding loop of high pitch loudspeaker on the described middle pitch.
12, full range band coaxial loudspeaker according to claim 10, wherein, described middle pitch lower magnetic guiding loop is a goblet, and described middle pitch magnet steel is positioned at the bottom of described goblet middle pitch lower magnetic guiding loop, and the sidewall of middle pitch magnet steel and wall of cup form magnetic gap.
13, full range band coaxial loudspeaker according to claim 10, wherein, the longitudinal cross-section of described middle pitch vibrating diaphragm is the semicircle that two radiuses equate.
14, full range band coaxial loudspeaker according to claim 10, wherein, the thickness of described middle pitch vibrating diaphragm is the 0.1-1 millimeter.
15, full range band coaxial loudspeaker according to claim 8, wherein, described woofer is a coil-moving speaker.
16, full range band coaxial loudspeaker according to claim 8, wherein, the voice coil loudspeaker voice coil bore of described Squawker is 1: 1.2 to 1: 2 with the ratio of the voice coil loudspeaker voice coil bore of described woofer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510085707 CN1905758A (en) | 2005-07-29 | 2005-07-29 | Band type loudspeaker and all band coaxial loudspeaker containing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510085707 CN1905758A (en) | 2005-07-29 | 2005-07-29 | Band type loudspeaker and all band coaxial loudspeaker containing same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1905758A true CN1905758A (en) | 2007-01-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510085707 Pending CN1905758A (en) | 2005-07-29 | 2005-07-29 | Band type loudspeaker and all band coaxial loudspeaker containing same |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011066702A1 (en) * | 2009-12-03 | 2011-06-09 | Zhu Duoliang | Audio driver |
| CN108551634A (en) * | 2018-05-04 | 2018-09-18 | 珠海惠威科技有限公司 | A kind of coaxial ribbon speaker of Whole frequency band |
| CN112954551A (en) * | 2021-03-04 | 2021-06-11 | 珠海惠威科技有限公司 | Loudspeaker |
| CN113055795A (en) * | 2021-02-02 | 2021-06-29 | 歌尔股份有限公司 | Sound production device and earphone |
| CN113194391A (en) * | 2021-03-24 | 2021-07-30 | 潍坊歌尔电子有限公司 | Tape speaker and electronic apparatus |
| CN114866920A (en) * | 2022-04-29 | 2022-08-05 | 歌尔股份有限公司 | Sound production device and audio equipment |
| CN115334415A (en) * | 2022-07-06 | 2022-11-11 | 深圳市冠旭电子股份有限公司 | A loudspeaker and earphone |
-
2005
- 2005-07-29 CN CN 200510085707 patent/CN1905758A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011066702A1 (en) * | 2009-12-03 | 2011-06-09 | Zhu Duoliang | Audio driver |
| CN108551634A (en) * | 2018-05-04 | 2018-09-18 | 珠海惠威科技有限公司 | A kind of coaxial ribbon speaker of Whole frequency band |
| CN108551634B (en) * | 2018-05-04 | 2023-08-01 | 珠海惠威科技有限公司 | Full-band coaxial ribbon loudspeaker |
| CN113055795A (en) * | 2021-02-02 | 2021-06-29 | 歌尔股份有限公司 | Sound production device and earphone |
| CN112954551A (en) * | 2021-03-04 | 2021-06-11 | 珠海惠威科技有限公司 | Loudspeaker |
| CN113194391A (en) * | 2021-03-24 | 2021-07-30 | 潍坊歌尔电子有限公司 | Tape speaker and electronic apparatus |
| CN114866920A (en) * | 2022-04-29 | 2022-08-05 | 歌尔股份有限公司 | Sound production device and audio equipment |
| CN115334415A (en) * | 2022-07-06 | 2022-11-11 | 深圳市冠旭电子股份有限公司 | A loudspeaker and earphone |
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Application publication date: 20070131 |