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TW201106725A - Loudspeaker - Google Patents

Loudspeaker Download PDF

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Publication number
TW201106725A
TW201106725A TW98126856A TW98126856A TW201106725A TW 201106725 A TW201106725 A TW 201106725A TW 98126856 A TW98126856 A TW 98126856A TW 98126856 A TW98126856 A TW 98126856A TW 201106725 A TW201106725 A TW 201106725A
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TW
Taiwan
Prior art keywords
voice coil
line
speaker
nanocarbon
carbon
Prior art date
Application number
TW98126856A
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Chinese (zh)
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TWI511581B (en
Inventor
Liang Liu
Jia-Ping Wang
Original Assignee
Hon Hai Prec Ind Co Ltd
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Application filed by Hon Hai Prec Ind Co Ltd filed Critical Hon Hai Prec Ind Co Ltd
Priority to TW098126856A priority Critical patent/TWI511581B/en
Publication of TW201106725A publication Critical patent/TW201106725A/en
Application granted granted Critical
Publication of TWI511581B publication Critical patent/TWI511581B/en

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Abstract

The present invention relates to a loudspeaker, the loudspeaker includes a magnetic system, a vibration system and supporting system. The vibration system includes a coil lead wire. The coil lead wire includes at least a carbon nanotube wire structure. The carbon nanotube wire structure includes an amount of carbon nanotubes. The coil lead wire has good strength and improved bendable property.

Description

201106725 六、發明說明: 【發明所屬之技術領域】 [0001] 本發明涉及一種揚聲器,尤其涉及一種電動式揚聲器。 【先前技術】 [0002] 電動式揚聲器之工作過程為將一音頻電信號輸入揚聲器 中之音圈引線,該音圈引線進而將該音頻電信號輸入揚 聲器之音圈中,該音圈便在磁場之作用下振動並推動與 其連接之振動膜做相應之活塞式運動,進而推動周圍空 氣振動,發出聲波。 ❹ [0003] 然,先前技術中揚聲器所採用之音圈引線結構大多數為 由多根金屬導線絞合在一起形成之導線,當音圈在振動 過程中,該音圈引線也相應發生反復彎折,然而金屬之 抗疲勞性能較差,故其在反復彎折之過程中容易發生疲 勞斷裂,進而影響整個揚聲器之正常工作,使揚聲器之 使用壽命較短。 【發明内容】 Ο [〇〇〇4] 有鑒於此,提供一種具有較高抗疲勞斷裂性能音圈引線 之揚聲器實為必要。 [0005] 一種揚聲器,其包括:一磁路系統,該磁路系統包括一 磁間隙;一振動系統,該振動系統包括一振膜、一音圈 骨架、一音圈及一音圈引線,所述音圈骨架設置於所述 磁間隙中,所述音圈螺旋纏繞並固定於該音圈骨架,所 述音圈引線包括第一端和第二端,該第一端與該音圈電 連接,所述振膜包括一外邊和一内邊,其内邊固定於所 述音圈骨架;及一支撐輔助系統,該支撐輔助系統包括 098126856 表單編號A0101 第3頁/共24頁 0982046016-0 201106725 一用於容納振膜之框架’該框架包括第一端和第二端, 其第一端固定於磁路結構,且所述振膜之外邊固定在該 框架之第二端’該框架上設置有—接線柱,所述音圈引 線之第二端與該接線柱連接,其中,該音圈引線由至少 一奈米碳管線狀結構組成,該奈米碳管線狀結構包括複 數奈米碳管。 [0006] [0007] [0008] [0009] 098126856 相較於先前技術,本發明之揚聲器具有以下優點:由於 該揚聲Θ所採用之音圈引線由至少—奈米碳管線狀結構 組成,該奈米碳管線狀結構具有較高之強度,較好之柔 性及較南之耐彎折性能,故使爾讀奈来礙管線狀結構可 有效提高整個音圈引線之強度及耐f折性能,使該音圈 引線不易發生斷裂,從而延長了揚聲器之工作壽命。 【實施方式】 以下將結合附圖詳細說明本發明實施例之揚聲器。 請參閱圖1及圖2,本發明第一實施例提供一種揚聲器1〇 ,該揚聲器10包括一磁路糸統J2、一振動系統1 4及—支 撐輔助系統16 » 所述磁路系統12包括一導磁下板121、一導磁上板125、 一磁體122及一導磁芯柱123,所述磁體122相對之兩端 分別由同心設置之導磁下板121及導磁上板125所失持。 所述導磁上板125及磁體122均為環狀結構,所述導磁上 板125及磁體122在所述磁路系統12中圍成一柱形空間。 所述導磁芯柱123容置於所述柱形空間,其自所述導磁下 板121往導磁上板125延伸而且與所述磁體122形成—環 形磁間隙124。 表單編號A0101 第4頁/共24頁 0982046016-0 201106725 [0010] 所述振動系統14包括一振膜142、一音圈骨架144、一音 圈146、一定心支片143及一音圈引線100,所述音圈骨 架144設置於所述磁間隙124中並可上下自由活動,所述 音圈146螺旋纏繞並固定於該音圈骨架144上,所述音圈 引線100包括第一端和第二端(圖未示),該第一端與該音 圈146電連接,所述振膜142包括外邊和内邊(圖未示), 其内邊固定於所述音圈骨架144。所述定心支片143之一 端固定於所述音圈骨架140上。 0 [0011] 所述支撐輔助系統16包括一用於容納所述振動系統14之 框架162,該框架162可為一錐體結構,其具有一中心孔 111用於套設所述磁路系統12,該框架162包括第一端和 第二端(圖未示),該第一端固定於磁體122。此外,所述 定心支片143之另一端固定於該框架162之第一端,所述 振膜142之外邊固定在該框架162之第二端,且該框架 162上設置有一接線柱164。所述音圈引線100之第二端 與該接線柱164連接。 〇 [0012] 進一步地,本發明實施例中之音圈引線100也可首先固定 於所述振膜142之表面,之後再從其在所述振膜142之固 定位置處延伸至所述接線柱164。該音圈引線100可通過 粘結劑粘結於所述振膜142表面,也可在振膜142上設置 一卡槽(圖未示)以固定所述音圈引線100。該音圈引線 100之第二端可採用任意方式與所述接線柱164電連接, 如將一短金屬線與該接線柱164之導電部位焊接,之後將 該金屬線與所述音圈引線100通過導電粘結劑粘結在一起 ,或者將該音圈引線100直接通過導電粘結劑與所述接線 098126856 表單編號A0101 第5頁/共24頁 0982046016-0 201106725 柱164實現電連接。 [0013] 請參閱圖3及圖4,所述音圈引線100由至少一奈米碳管線 狀結構102組成。所述奈米碳管線狀結構102包括複數通 過凡德瓦爾力首尾相連之奈米碳管,該奈米碳管包括單 壁奈米碳管、雙壁奈米碳管及多壁奈米碳管中之一種或 多種。所述單壁奈米碳管之直徑為0. 5奈米〜10奈米,雙 壁奈米碳管之直徑為1.0奈米〜15奈米,多壁奈米碳管之 直徑為1. 5奈米~50奈米。該奈米碳管線狀結構102之直 徑不限,其可依據實際需要而設定。在揚聲器10中,音 ^201106725 VI. Description of the Invention: [Technical Field of the Invention] [0001] The present invention relates to a speaker, and more particularly to an electric speaker. [Prior Art] [0002] The working process of the electric speaker is to input an audio electric signal into the voice coil lead in the speaker, and the voice coil lead further inputs the audio electric signal into the voice coil of the speaker, and the voice coil is in the magnetic field. Under the action of vibration, and push the diaphragm connected to it to make the corresponding piston movement, thereby pushing the surrounding air to vibrate and emit sound waves. 0003 [0003] However, the voice coil lead structure used in the speaker of the prior art is mostly a wire formed by twisting a plurality of metal wires together, and the voice coil lead is repeatedly bent when the voice coil is vibrating. Folding, however, the metal's anti-fatigue performance is poor, so it is prone to fatigue fracture during repeated bending, which affects the normal operation of the entire speaker, so that the life of the speaker is shorter. SUMMARY OF THE INVENTION [〇〇〇4] In view of the above, it is necessary to provide a speaker having a high fatigue fatigue resistance voice coil lead. [0005] A speaker includes: a magnetic circuit system including a magnetic gap; a vibration system including a diaphragm, a voice coil skeleton, a voice coil and a voice coil lead, The voice coil bobbin is disposed in the magnetic gap, the voice coil is spirally wound and fixed to the voice coil bobbin, and the voice coil lead includes a first end and a second end, and the first end is electrically connected to the voice coil The diaphragm includes an outer edge and an inner edge, the inner side of which is fixed to the voice coil bobbin; and a support assisting system including the 098126856 form number A0101 page 3 / total 24 page 0992046016-0 201106725 a frame for accommodating a diaphragm. The frame includes a first end and a second end, the first end of which is fixed to the magnetic circuit structure, and the outer side of the diaphragm is fixed to the second end of the frame. a terminal, the second end of the voice coil lead is connected to the terminal, wherein the voice coil lead is composed of at least one nano carbon line structure, and the nano carbon line structure comprises a plurality of carbon nanotubes . [0006] [0009] [0009] 098126856 Compared with the prior art, the speaker of the present invention has the following advantages: since the voice coil lead used by the speaker is composed of at least a nano carbon line structure, The nano-carbon pipeline-like structure has high strength, good flexibility and resistance to bending in the south, so that the pipeline-like structure can effectively improve the strength and resistance of the entire voice coil lead. The voice coil lead is less likely to break, thereby extending the working life of the speaker. [Embodiment] Hereinafter, a speaker of an embodiment of the present invention will be described in detail with reference to the accompanying drawings. Referring to FIG. 1 and FIG. 2, a first embodiment of the present invention provides a speaker 1 that includes a magnetic circuit system J2, a vibration system 14 and a support assist system 16 » the magnetic circuit system 12 includes a magnetically permeable lower plate 121, a magnetically permeable upper plate 125, a magnet 122, and a magnetic conductive core column 123. The opposite ends of the magnet 122 are respectively disposed by concentrically disposed magnetically permeable lower plates 121 and magnetically permeable upper plates 125. Lost. The magnetically permeable upper plate 125 and the magnet 122 are both annular structures, and the magnetically permeable upper plate 125 and the magnet 122 enclose a cylindrical space in the magnetic circuit system 12. The magnetic core stud 123 is received in the cylindrical space, and extends from the magnetic conductive lower plate 121 to the magnetic conductive upper plate 125 and forms a ring-shaped magnetic gap 124 with the magnet 122. Form No. A0101 Page 4 of 24 page 0982046016-0 201106725 [0010] The vibration system 14 includes a diaphragm 142, a voice coil bobbin 144, a voice coil 146, a centering piece 143, and a voice coil lead 100. The voice coil bobbin 144 is disposed in the magnetic gap 124 and is freely movable up and down. The voice coil 146 is spirally wound and fixed on the voice coil bobbin 144. The voice coil lead 100 includes a first end and a first end. The second end (not shown) is electrically connected to the voice coil 146. The diaphragm 142 includes an outer edge and an inner edge (not shown), and the inner side is fixed to the voice coil bobbin 144. One end of the centering piece 143 is fixed to the voice coil bobbin 140. [0011] The support assisting system 16 includes a frame 162 for accommodating the vibration system 14, and the frame 162 can be a pyramid structure having a center hole 111 for nesting the magnetic circuit system 12 The frame 162 includes a first end and a second end (not shown) that is fixed to the magnet 122. In addition, the other end of the centering piece 143 is fixed to the first end of the frame 162, the outer side of the diaphragm 142 is fixed to the second end of the frame 162, and the frame 162 is provided with a terminal 164. The second end of the voice coil lead 100 is coupled to the terminal 164. Further, the voice coil lead 100 in the embodiment of the present invention may also be first fixed to the surface of the diaphragm 142, and then extended from the fixed position of the diaphragm 142 to the terminal. 164. The voice coil lead 100 may be bonded to the surface of the diaphragm 142 by an adhesive, or a card slot (not shown) may be disposed on the diaphragm 142 to fix the voice coil lead 100. The second end of the voice coil lead 100 can be electrically connected to the terminal 164 in any manner, such as soldering a short metal wire to the conductive portion of the terminal 164, and then the metal wire and the voice coil lead 100. Bonding together by a conductive adhesive, or electrically connecting the voice coil lead 100 directly through the conductive adhesive to the post 098126856 Form No. A0101 Page 5 of 24 page 0982046016-0 201106725 Post 164. Referring to FIGS. 3 and 4, the voice coil lead 100 is composed of at least one nano carbon line structure 102. The nanocarbon line-like structure 102 includes a plurality of carbon nanotubes connected end to end by a van der Waals force, and the carbon nanotubes include single-walled carbon nanotubes, double-walled carbon nanotubes, and multi-walled carbon nanotubes. One or more of them. The diameter of the multi-walled carbon nanotubes is 1. 5 nm to 10 nm, the diameter of the double-walled carbon nanotubes is 1.0 nm to 15 nm, and the diameter of the multi-walled carbon nanotubes is 1.5. Nano ~ 50 nm. The diameter of the nanocarbon line-like structure 102 is not limited, and it can be set according to actual needs. In the speaker 10, the sound ^

圈引線100與音圈146連接,當音圈146在工作過程中反 復振動時,與其連接之音圈引線100也相應發生反復彎折 ,可理解,該音圈引線10相對於音圈146具有一定之負載 ,故該音圈引線100之實際重量對音圈146振動之影響較 大,當其重量太重時,音圈146之負載較重,影響其正常 振動,從而容易引起揚聲器10發聲失真,故,該奈米碳 管線狀結構102應在滿足具有一定機械強度之前提下具有 較小之直徑。本實施例中,該奈米碳管線狀結構1 0 2之直 I 徑為10微米〜50毫米。 [0014] 所述奈米碳管線狀結構102包括至少一奈米碳管線。請參 閱圖2,當該奈米碳管線狀結構102包括複數奈米碳管線 1 020時,該複數奈米碳管線1 020可相互平行組成束狀結 構,同時,請參閱圖3,該複數奈米碳管線1 020也可相互 扭轉組成絞線結構。 [0015] 該奈米碳管線1 020可為一非扭轉之奈米碳管線或扭轉之 奈米碳管線。請參閱圖5,該非扭轉之奈米碳管線包括複 098126856 表單編號A0101 第6頁/共24頁 0982046016-0 201106725 數:該非扭轉之奈米碳管線長度方向排列之奈米碳管, =數=米碳管基本相互平行,且該奈米碳管之轴向基 ==碳管線之長度方向。具體地,該非扭轉 線中之複數奈米碳管通過凡德瓦爾力首尾相 。该非扭轉之奈米碳管線長m直徑級5奈米 Ο 比,比 〇微米。該非扭轉之奈米碳管線可通過將奈米碳管拉 =過有雜财理㈣。具舰,將有驗劑浸潤所 =米碳管拉膜之整個表面,在揮發性有機溶劑揮發時 生之表面張力之作用下,奈米碳管拉膜中之相互平行 之複數奈轉管料凡德瓦_力緊祕合,從而使夺米 =管拉膜收縮為-非扭轉之奈米碳管線。該有機溶劑為 揮發性有機溶劑,如乙醇、▼醇、丙酮、二氣乙院或氣 ^本實施例中採用乙醇。通過有機溶劑處理之非扭轉 奈米碳管線與未經有機溶劑處理之奈求碳管膜相 表面積減小,粘性降低。 剛所述扭轉之奈米碳管線為採用—機械力將▲述奈米碳管 拉膜兩端沿相反方向扭轉獲得。請參閱圖6,該扭轉之奈 米碳管線包括複數繞該扭轉之奈米碳管線㈣方向螺旋 排^並沿線之-端向另1延伸之奈讀管,該複數奈 可看作沿__個確定之方向即該奈米碳管線之抽線 方=延伸。具體地,該扭轉之奈米碳管線包括複數奈米 反s片段’該複數奈米碳管片段通過凡德瓦爾力首尾相 連,每一奈米碳管片段包括複數相互平行並通過凡德瓦 爾力緊密結合之奈米碳管。該奈米碳管片段具有任意之 長度厚度、均勻性及形狀。該扭轉之奈米碳管線長度 098126856 表單編號A0101 苐7頁/共24頁 0982046016-0 201106725 不限,直徑為0. 5奈米〜100微米。進一步地,可採用一揮 發性有機溶劑處理該扭轉之奈米碳管線。在揮發性有機 溶劑揮發時產生之表面張力之作用下,處理後之扭轉之 奈米碳管線中相鄰之奈米碳管通過凡德瓦爾力緊密結合 ,使扭轉之奈米碳管線之比表面積減小,密度及強度增 大。 [0017] 所述奈米碳管線狀結構及其製備方法請參見范守善等人 於2008年11月21日公告之第1 303239號台灣公告專利及 於2007年7月1日公開之第200724486號台灣公開專利申 % / '請。 [0018] 另,當所述音圈引線100由複數奈米碳管線狀結構組成時 ,該奈米碳管線狀結構可相互平行併排設置組成束狀結 構或相互扭轉設置組成絞線狀結構。 [0019] 所述音圈引線100中,所述奈米碳管線狀結構102包括複 數通過凡德瓦爾力首尾相連之奈米碳管,其具有較高之 強度及較高之耐彎折性能,故,該奈米碳管線狀結構102The loop lead 100 is connected to the voice coil 146. When the voice coil 146 repeatedly vibrates during operation, the voice coil lead 100 connected thereto is repeatedly bent repeatedly. It can be understood that the voice coil lead 10 has a certain relative to the voice coil 146. The load, so the actual weight of the voice coil lead 100 has a great influence on the vibration of the voice coil 146. When the weight is too heavy, the load of the voice coil 146 is heavy, affecting its normal vibration, and thus easily causing the sound distortion of the speaker 10. Therefore, the nanocarbon line-like structure 102 should be lifted to have a smaller diameter before it is required to have a certain mechanical strength. In this embodiment, the diameter of the nanocarbon line-like structure 10 2 is 10 μm to 50 mm. [0014] The nanocarbon line-like structure 102 includes at least one nanocarbon line. Referring to FIG. 2, when the nanocarbon line-like structure 102 includes a plurality of nano carbon lines 1 020, the plurality of nano carbon lines 1 020 may be parallel to each other to form a bundle structure. Meanwhile, referring to FIG. 3, the plurality The carbon carbon line 1 020 can also be twisted to each other to form a stranded structure. [0015] The nanocarbon line 1 020 can be a non-twisted nano carbon line or a twisted nano carbon line. Referring to FIG. 5, the non-twisted nano carbon pipeline includes a complex 098126856 Form No. A0101 Page 6 / 24 pages 0982046016-0 201106725 Number: The carbon nanotubes of the non-twisted nano carbon pipeline are arranged in the length direction, = number = The carbon nanotubes are substantially parallel to each other, and the axial base of the carbon nanotubes == the length direction of the carbon pipeline. Specifically, the plurality of carbon nanotubes in the non-twisted line pass through the van der Waals force. The non-twisted nano carbon line has a length m diameter of 5 nm Ο, which is greater than 〇 micron. The non-twisted nanocarbon pipeline can be used to pull the carbon nanotubes through the rich (four). With the ship, there will be an infiltration of the test agent = the entire surface of the film of the carbon tube, under the action of the surface tension generated by the volatilization of the volatile organic solvent, the parallel of the nano tube in the carbon nanotube film Van der Waals _ force tight, so that the rice = tube film shrinks into a non-twisted nano carbon pipeline. The organic solvent is a volatile organic solvent such as ethanol, ▼ alcohol, acetone, Erqiyuan or gas. In the present embodiment, ethanol is used. The surface area of the non-twisted nanocarbon line treated by the organic solvent and the non-organic solvent treated carbon nanotube film are reduced, and the viscosity is lowered. The twisted nanocarbon pipeline just obtained is obtained by mechanically twisting both ends of the ▲ carbon nanotube film in opposite directions. Referring to FIG. 6, the twisted nanocarbon pipeline includes a plurality of nematic tubes extending around the twisted nanocarbon pipeline (four) direction and extending along the line-end to the other one, and the complex number can be regarded as along the __ The determined direction is the drawing line of the nano carbon pipeline = extension. Specifically, the twisted nanocarbon pipeline includes a plurality of nano-anti-s segments. The plurality of carbon nanotube segments are connected end to end by van der Waals force, and each of the carbon nanotube segments includes a plurality of parallel and through Van der Waals force Closely combined with carbon nanotubes. The carbon nanotube segments have any length, uniformity and shape. The twisted nano carbon line length 098126856 Form No. A0101 苐 7 pages / Total 24 pages 0982046016-0 201106725 Not limited, the diameter is 0. 5 nm ~ 100 microns. Further, the twisted nanocarbon line can be treated with a volatile organic solvent. Under the action of the surface tension generated by the volatilization of the volatile organic solvent, the adjacent carbon nanotubes in the twisted nanocarbon pipeline after treatment are tightly bonded by van der Waals force, so that the specific surface area of the twisted nanocarbon pipeline Decrease, increase in density and strength. [0017] The nanocarbon line-like structure and its preparation method can be found in Taiwan Patent No. 1 303239 announced by Fan Shoushan et al. on November 21, 2008 and Taiwan No. 200724486 published on July 1, 2007. Public patent application % / 'Please. [0018] In addition, when the voice coil lead 100 is composed of a plurality of nano carbon line-like structures, the nano carbon line-like structures may be arranged side by side in parallel with each other to form a bundle structure or twisted to form a stranded structure. [0019] In the voice coil lead 100, the nanocarbon line-like structure 102 includes a plurality of carbon nanotubes connected end to end by a van der Waals force, which has high strength and high bending resistance. Therefore, the nano carbon line structure 102

U 可有效提高整個音圈引線10之強度及耐彎折性能,同時 由於所述奈米碳管線狀結構102中包括之複數奈米碳管均 沿該奈米碳管線狀結構102之軸線方向有序排列,充分發 揮了奈米碳管縱向導線性良好之優點,故該音圈引線100 導電性較好,當外部音頻信號通過該音圈引線100輸入音 圈14 6中時,利用電磁感應原理,在磁場中之音圈14 6便 發生振動,從而推動振膜振動並發聲。可見,該音圈引 線100導電性較好且耐彎折不易發生斷裂,故有助於延長 使用該音圈引線100之揚聲器10之工作壽命。 098126856 表單編號A0101 第8頁/共24頁 0982046016-0 201106725 [0020]請參閱圖7,本發明第二實施例提供一種揚聲器2〇,該揚 聲器20包括一磁路系統22、一振動系統24及一支撐輔助 系統26。所述磁路系統22包包括一導磁下板mi、一導磁 上板225、一磁體222、一導磁芯柱223及一磁間隙224 ; 所述振動系統24包括一振膜242、一音圈骨架244、一音 圈246、一定心支片243及一音圈引線200 ;所述支撐輔 助系統26包括一用於容納所述振動系統24之框架262及設 置於該框架262上之一接線柱264。 Q [0021]所述音圈引線200由至少一奈米域管線狀結構組成。該奈 米碳管線狀結構包括複數通過凡德瓦爾力首尾相連之奈 米碳管 °所述奈米碳管線狀結構包括至少一奈米碳管線 。當該奈米碳管線狀結構包括複數奈米;碳管線時,該複 數奈米碳管線可相互平行組成束狀結構或相互扭轉組成 絞線結構。 [0022] 請參閱圖8,本實施例與上述第一實施例基本相同,其區 - : 別在於,本實施例音圈引線200之奈米碳管線狀結構(圖 0 未示)中之奈米碳管表面包覆有一導電結構203。具體地 ,該導電結構203包括與奈米碳管2021表面直接結合之一 潤濕層2031、設置於該潤濕層2031外之一過渡層2032、 設置於該過渡層2032外之一導電層2033及設置於導電層 2033外之一抗氧化層2034。 [0023] 由於奈米碳管2021與大多數金屬之間之潤濕性不好,故 ,上述潤濕層2031之作用為使導電層2033與奈米碳管 2021更好之結合。形成該潤濕層2031之材料可為鐵、銘 、鎳、鈀或鈦等與奈米碳管2021潤濕性好之金屬或它們 098126856 表單編號A0101 第9頁/共24頁 09ί 201106725 之合金,該潤濕層2031之厚度為0. 1~10奈米。本實施例 中,該潤濕層2031之材料為鎳,厚度約為2奈米。可理解 ,該潤濕層2031為可選擇結構。 [0024] 上述過渡層2032之作用為使潤濕層2031與導電層2033更 好之結合。形成該過渡層20 32之材料可為與潤濕層2031 材料及導電層2033材料均能較好結合之材料,該過渡層 2032之厚度為0. 1〜10奈米。本實施例中,該過渡層20 32 之材料為銅,厚度為2奈米。可理解,該過渡層2032為可 選擇結構。 [0025] 上述導電層2033之作用為使奈米碳管線狀結構具有較好 之導電性能。形成該導電層2033之材料可為銅、銀或金 等導電性好之金屬或它們之合金,該導電層2033之厚度 為0.卜20奈米。本實施例中,該導電層2033之材料為銀 ,厚度約為10奈米。 [0026] 上述抗氧化層2034之作用為防止在音圈引線200之製造過 程中導電層2033在空氣中被氧化,從而使音圈引線200之 導電性能下降。形成該抗氧化層2034之材料可為金或鉑 等在空氣中不易氧化之穩定金屬或它們之合金,該抗氧 化層2034之厚度為0. 1奈米〜10奈米。本實施例中,該抗 氧化層2034之材料為鉑,厚度為2奈米。可理解,該抗氧 化層2034為可選擇結構。 [0027] 經實驗測試可知,包覆導電材料之奈米碳管線狀結構之 電阻率比純奈米碳管線狀結構之電阻率有所降低。該奈 米碳管線狀結構之電阻率可降低到1 〇 (1 〇_8(歐姆·米 098126856 表單編號A0101 第10頁/共24頁 0982046016-0 201106725 )5〇〇(1〇 (歐姆.米)。而純奈米碳管線狀結構之電阻 率為100(10-8(歐姆·米)〜700( 1 0-8(歐姆.米)。故該音 圈引線200不僅具有較好之耐f折性,還具有較好之導電 性’從而使揚聲器200之靈敏度提高。 [_本發明實施例提供之揚聲器具有以下優點:纟發明音圈 引線中之奈米碳管線狀結構包括複數通過凡德瓦爾力首 尾相連且沿奈米碳管線狀結構之軸線方向有序排列之奈 米碳管,從而使整個音圈引線不僅具有較好之導電性, Ο 還具有較好之耐彎折性,從而延長了揚聲器之使用壽命 ;本發明音圈引線進^步包括一包覆於奈米碳管線狀結 構中奈米碳管表面之導電結構,該導電結構可進一步提 而整個音圈引線之電導率,從而提高了揚聲器之靈敏度 0 [0029] 综上所述,本發明確已符合發明專利之要件,遂依法提 出專利申請。惟’以上所述..者僅為本發明之較佳實施方 式,自不能以此限制本案之申請專利範圍。舉凡熟悉本 〇 ^ 案技藝之人士援依本發明之精神所作之等效修飾或變化 ’皆應涵蓋於以下申請專利範圍内。 【圖式簡單說明】 [0030] 圖1係本發明第一實施例揚聲器之結構示意圖。 [0031] 圖2係圖1中之揚聲器之剖視結構示意圖。 [0032] 圖3及圖4係本發明第一實施例揚聲器中音圈引線中奈米 碳管線狀結構之結構示意圖。 [0033] 圖5係本發明第一實施例揚聲器音圈引線中非扭轉之奈米 098126856 表單編號A0101 第11頁/共24頁 0982046016-0 201106725 碳官線掃描電鏡照片。 [0034] [0035] [0036] [0037] 098126856 圖6係本發明第一實施例揚聲器音圈引線中扭轉之奈米碳 管線掃描電鏡照片。 圖7係本發明第二實施例揚聲器之結構示意圖。 圖8係本發明第二實施例包覆有導電結構之奈米碳管結構 示意圖。 【主要元件符號說明】 揚聲器 10,20 音圈引線 100 , 200 奈米碳管線狀結構 ... ':-:'; .-— 奈米碳管線 1020 . 中心孔 111 磁路系統 12,22 導磁下板 121 > 221 磁體 122 , 222 導磁芯柱 123 , 223 磁間隙 124 , 224 導磁上板 125 , 225 振動系統 14,24 振膜 142 , 242 定心支片 143 , 243 音圈骨架 144 , 244 音圈 146 , 246 支撐輔助系統 16,26 框架 162 , 262 表單編號A0101 第12頁/共24頁 0982046016-0 201106725 接線柱 164 , 264 奈米碳管 2021 導電結構 203 潤濕層 2031 過渡層 2032 導電層 2033 抗氧化層 2034U can effectively improve the strength and bending resistance of the entire voice coil lead 10, and at the same time, the plurality of carbon nanotubes included in the nanocarbon line-like structure 102 are along the axis of the nanocarbon line-like structure 102. The order arrangement fully utilizes the advantages of good longitudinal wire conductivity of the carbon nanotubes, so the voice coil lead 100 has good conductivity. When an external audio signal is input into the voice coil 14 through the voice coil lead 100, the principle of electromagnetic induction is utilized. The voice coil 14 6 in the magnetic field vibrates, which pushes the diaphragm to vibrate and sound. It can be seen that the voice coil lead 100 has good electrical conductivity and is resistant to bending and is not easily broken, thereby contributing to prolonging the working life of the speaker 10 using the voice coil lead 100. 098126856 Form No. A0101 Page 8 of 24 0992046016-0 201106725 [0020] Referring to FIG. 7, a second embodiment of the present invention provides a speaker 2, which includes a magnetic circuit system 22, a vibration system 24, and A support assist system 26. The magnetic circuit system 22 includes a magnetically permeable lower plate mi, a magnetically conductive upper plate 225, a magnet 222, a magnetic conductive core 223 and a magnetic gap 224; the vibration system 24 includes a diaphragm 242, a a voice coil skeleton 244, a voice coil 246, a centering piece 243, and a voice coil lead 200; the support assisting system 26 includes a frame 262 for accommodating the vibration system 24 and one of the frames 262 Terminal 264. Q [0021] The voice coil lead 200 is composed of at least one nanometer-line structure. The nanocarbon line-like structure includes a plurality of carbon nanotubes connected end to end by a van der Waals force. The nanocarbon line structure comprises at least one nano carbon line. When the nanocarbon line-like structure comprises a plurality of nano-carbon tubes, the plurality of carbon-carbon lines may be parallel to each other to form a bundle structure or twisted to each other to form a strand structure. [0022] Referring to FIG. 8, this embodiment is basically the same as the first embodiment described above, and the area thereof is: in the nano carbon line structure of the voice coil lead 200 of the present embodiment (not shown in FIG. 0). The surface of the carbon nanotube is coated with a conductive structure 203. Specifically, the conductive structure 203 includes a wetting layer 2031 directly coupled to the surface of the carbon nanotube 2021, a transition layer 2032 disposed outside the wetting layer 2031, and a conductive layer 2033 disposed outside the transition layer 2032. And an anti-oxidation layer 2034 disposed outside the conductive layer 2033. [0023] Since the wettability between the carbon nanotube 2021 and most metals is not good, the above-mentioned wetting layer 2031 functions to better bond the conductive layer 2033 with the carbon nanotube 2021. The material forming the wetting layer 2031 may be a metal such as iron, indium, nickel, palladium or titanium which has good wettability with the carbon nanotube 2021 or an alloy thereof, 098126856 Form No. A0101, page 9 / 24 pages 09ί 201106725, 01至10纳米。 The thickness of the wet layer 2031 is 0. 1~10 nm. In this embodiment, the wetting layer 2031 is made of nickel and has a thickness of about 2 nm. It will be appreciated that the wetting layer 2031 is an optional structure. [0024] The transition layer 2032 functions to better bond the wetting layer 2031 to the conductive layer 2033. 1〜10纳米。 The thickness of the transition layer 2032 is 0. 1~10 nm. The thickness of the layer of the transition layer 2032 is 0. 1~10 nm. In this embodiment, the material of the transition layer 20 32 is copper and has a thickness of 2 nm. It will be appreciated that the transition layer 2032 is an alternative structure. [0025] The above conductive layer 2033 functions to make the nanocarbon line-like structure have better electrical conductivity. The material for forming the conductive layer 2033 may be a metal having good conductivity such as copper, silver or gold or an alloy thereof, and the thickness of the conductive layer 2033 is 0. In this embodiment, the conductive layer 2033 is made of silver and has a thickness of about 10 nm. The anti-oxidation layer 2034 functions to prevent the conductive layer 2033 from being oxidized in the air during the manufacture of the voice coil lead 200, thereby degrading the electrical conductivity of the voice coil lead 200. The thickness of the anti-oxidation layer 2034 is 0.1 nm to 10 nm. The material of the anti-oxidation layer 2034 may be a stable metal such as gold or platinum which is not easily oxidized in the air or an alloy thereof. In this embodiment, the anti-oxidation layer 2034 is made of platinum and has a thickness of 2 nm. It will be appreciated that the oxidation resistant layer 2034 is of an alternative construction. [0027] It has been experimentally found that the resistivity of the nanocarbon line-like structure coated with the conductive material is lower than that of the pure nanocarbon line-like structure. The resistivity of the nanocarbon line-like structure can be reduced to 1 〇 (1 〇 _8 (ohm metre 098126856 form number A0101 page 10 / 24 pages 0992046016-0 201106725) 5 〇〇 (1 〇 (ohm. meters) The pure nanocarbon line-like structure has a resistivity of 100 (10-8 (ohm·m) to 700 (1 0-8 (ohm.m)). Therefore, the voice coil lead 200 not only has better resistance to f. The folding property also has better conductivity' to improve the sensitivity of the speaker 200. [The speaker provided by the embodiment of the invention has the following advantages: the nano carbon line-like structure in the invention of the voice coil lead includes a plurality of passes through the van der Vale is an end-to-end arrangement of carbon nanotubes arranged in the order of the axis of the nanocarbon line-like structure, so that the entire voice coil lead not only has good electrical conductivity, but also has good bending resistance. Extending the service life of the speaker; the voice coil lead step of the present invention comprises a conductive structure coated on the surface of the carbon nanotube in the nanocarbon pipeline structure, and the conductive structure can further improve the conductivity of the entire voice coil lead , thus improving the sensitivity of the speaker 0 [0029 In summary, the present invention has indeed met the requirements of the invention patent, and the patent application is filed according to law. However, the above description is only a preferred embodiment of the present invention, and the patent application scope of the present invention cannot be limited thereby. The equivalent modifications or variations made by those skilled in the art of the present invention in the spirit of the present invention are intended to be included in the following claims. [FIG. 1 is the first aspect of the present invention. 2 is a schematic structural view of a speaker in FIG. 1. [0032] FIG. 3 and FIG. 4 are views showing a carbon nanotube line in a voice coil lead of a speaker according to a first embodiment of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 5 is a non-twisted nano 098126856 in a speaker voice coil lead according to a first embodiment of the present invention. Form No. A0101 Page 11 of 24 0982046016-0 201106725 Carbon ray scanning electron micrograph. [0037] FIG. 6 is a scanning electron micrograph of a twisted nanocarbon pipeline in a speaker voice coil lead according to a first embodiment of the present invention. FIG. 7 is a structural diagram of a speaker according to a second embodiment of the present invention. Fig. 8 is a schematic view showing the structure of a carbon nanotube coated with a conductive structure according to a second embodiment of the present invention. [Explanation of main components] Speaker 10, 20 voice coil lead 100, 200 nm carbon line-like structure... :-:'; .-- Nano carbon line 1020. Center hole 111 Magnetic circuit system 12, 22 Magnetic lower plate 121 > 221 Magnet 122, 222 Magnetic core column 123, 223 Magnetic gap 124, 224 Magnetically conductive Plate 125, 225 vibration system 14, 24 diaphragm 142, 242 centering piece 143, 243 voice coil skeleton 144, 244 voice coil 146, 246 support auxiliary system 16, 26 frame 162, 262 Form No. A0101 Page 12 / Total 24 pages 0982046016-0 201106725 Terminal 164, 264 Carbon nanotube 2021 Conductive structure 203 Wetting layer 2031 Transition layer 2032 Conductive layer 2033 Anti-oxidation layer 2034

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098126856 表單編號Α0101 第13頁/共24頁 0982046016-0098126856 Form number Α0101 Page 13 of 24 0982046016-0

Claims (1)

201106725 七、申請專利範圍: 1 . 一種揚聲器,其包括: 一磁路系統,該磁路系統包括一磁間隙; 一振動系統,該振動系統包括一振膜、一音圈骨架、一音 圈及一音圈引線,所述音圈骨架設置於所述磁間隙中,所 述音圈螺旋纏繞並固定於該音圈骨架,所述音圈引線包括 第一端和第二端,該第一端與該音圈電連接,所述振膜包 括一外邊和一内邊,其内邊固定於所述音圈骨架;及 一支撐輔助系統,該支撐輔助系統包括一用於容納振膜之 框架,該框架包括第一端和第二端,其第一端固定於磁路 結構,且所述振膜之外邊固定在該框架之第二端,該框架 上設置有一接線柱,所述音圈引線之第二端與該接線柱電 連接, 其改良在於,該音圈引線由至少一奈米碳管線狀結構組成 ,該奈米碳管線狀結構包括複數奈米碳管。 2 .如申請專利範圍第1項所述之揚聲器,其中,所述奈米碳 管線狀結構包括複數通過凡德瓦爾力首尾相連之奈米碳管 〇 3. 如申請專利範圍第1項所述之揚聲器,其中,所述奈米碳 管線狀結構包括至少一奈米碳管線。 4. 如申請專利範圍第3項所述之揚聲器,其中,所述奈米碳 管線包括複數個奈米碳管基本相互平行且基本平行於該奈 米碳管線軸向。 5 .如申請專利範圍第4項所述之揚聲器,其中,所述奈米碳 管線包括複數奈米碳管通過凡德瓦爾力首尾相連且基本沿 098126856 表單編號A0101 第14頁/共24頁 0982046016-0 201106725 該奈米碳管線長度方向延伸。 6. 如申請專利範圍第4項所述之揚聲器,其中,所述奈米碳 管線包括複數奈米碳管通過凡德瓦爾力首尾相連且沿該奈 米碳管線長度方向螺旋狀延伸。 7. 如申請專利範圍第3項所述之揚聲器,其中,所述奈米碳 管線狀結構包括複數奈米碳管線相互平行組成束狀結構或 相互扭轉組成絞線結構。 8. 如申請專利範圍第3項所述之揚聲器,其中,所述奈米碳 管線的直徑為0.5奈米〜100微米。 ^ 9 .如申請專利範圍第1項所述之揚聲器,其中,所述奈米碳 管包括單壁奈米碳管、雙壁奈米碳管或多壁奈米碳管。 10 .如申請專利範圍第1項所述之揚聲器,其中,所述奈米碳 管線狀結構之直徑為10微米〜50毫米。 11 .如申請專利範圍第1項所述之揚聲器,其中,所述音圈引 線由複數奈米碳管線狀結構平行排列設置組成或複數奈米 碳管線狀結構相互扭轉設置組成。 12 .如申請專利範圍第1項所述之揚聲器,其中,所述奈米碳 〇 管線狀結構中奈米碳管之表面進一步包覆有一導電層,該 導電層之材料為銅、銀、金或其合金。 13 .如申請專利範圍第12項所述之揚聲器,其中,所述奈米碳 管線狀結構中進一步設置有一潤濕層,該潤濕層設置於所 述奈米碳管表面與所述導電層之間,該潤濕層之材料為鐵 、始、錄、把、鈦或其合金。 14 .如申請專利範圍第13項所述之揚聲器,其中,所述奈米碳 管線狀結構中進一步設置有一過渡層,該過渡層設置於所 述導電層與所述潤濕層之間,該過渡層之材料為銅、銀或 098126856 表單編號A0101 第15頁/共24頁 0982046016-0 201106725 其合金。 15 .如申請專利範圍第12項所述之揚聲器,其中,所述奈米碳 管線狀結構中進一步設置有一抗氧化層,該抗氧化層設置 於所述導電層外表面,所述抗氧化層之材料為金、銘或其 合金。 098126856 表單編號A0101 第16頁/共24頁 0982046016-0201106725 VII. Patent application scope: 1. A speaker comprising: a magnetic circuit system comprising a magnetic gap; a vibration system comprising a diaphragm, a voice coil skeleton, a voice coil and a voice coil bobbin, the voice coil bobbin is disposed in the magnetic gap, the voice coil is spirally wound and fixed to the voice coil bobbin, and the voice coil lead includes a first end and a second end, the first end Electrically connected to the voice coil, the diaphragm includes an outer edge and an inner edge, the inner side of which is fixed to the voice coil bobbin; and a support assisting system, the support assisting system includes a frame for accommodating the diaphragm. The frame includes a first end and a second end, the first end of which is fixed to the magnetic circuit structure, and the outer side of the diaphragm is fixed to the second end of the frame, the frame is provided with a binding post, the voice coil lead The second end is electrically connected to the terminal, and the improvement is that the voice coil lead is composed of at least one nano carbon line structure, and the nano carbon line structure includes a plurality of carbon nanotubes. 2. The speaker according to claim 1, wherein the nanocarbon line-like structure comprises a plurality of carbon nanotubes connected end to end by van der Waals force. 3. As described in claim 1 The speaker, wherein the nanocarbon line-like structure comprises at least one nano carbon line. 4. The loudspeaker of claim 3, wherein the nanocarbon pipeline comprises a plurality of carbon nanotubes substantially parallel to each other and substantially parallel to the axial direction of the carbon nanotube. 5. The speaker of claim 4, wherein the nanocarbon pipeline comprises a plurality of carbon nanotubes connected end to end by van der Waals force and substantially along 098126856. Form number A0101 page 14 / total 24 pages 0992046016 -0 201106725 The nano carbon line extends in the length direction. 6. The loudspeaker of claim 4, wherein the nanocarbon pipeline comprises a plurality of carbon nanotubes connected end to end by a van der Waals force and extending helically along the length of the carbon nanotube. 7. The speaker of claim 3, wherein the nanocarbon line-like structure comprises a plurality of nanocarbon lines that are parallel to each other to form a bundle structure or to twist each other to form a strand structure. 8. The speaker of claim 3, wherein the nanocarbon line has a diameter of from 0.5 nm to 100 μm. The speaker of claim 1, wherein the carbon nanotube comprises a single-walled carbon nanotube, a double-walled carbon nanotube or a multi-walled carbon nanotube. The speaker according to claim 1, wherein the nanocarbon line-like structure has a diameter of 10 μm to 50 mm. The speaker according to claim 1, wherein the voice coil guide wire is composed of a plurality of nano carbon line-like structures arranged in parallel or a plurality of nano carbon line-like structures are mutually twisted. The speaker according to claim 1, wherein the surface of the carbon nanotube in the nanocarbon tantalum structure is further coated with a conductive layer, the conductive layer is made of copper, silver or gold. Or its alloy. The speaker according to claim 12, wherein the nanocarbon line-like structure is further provided with a wetting layer disposed on the surface of the carbon nanotube and the conductive layer Between the materials of the wetting layer are iron, start, record, handle, titanium or alloys thereof. The speaker according to claim 13, wherein the nanocarbon line-like structure is further provided with a transition layer disposed between the conductive layer and the wetting layer, The material of the transition layer is copper, silver or 098126856 Form No. A0101 Page 15 / Total 24 pages 0992046016-0 201106725 Its alloy. The speaker of claim 12, wherein the nanocarbon line-like structure is further provided with an anti-oxidation layer disposed on an outer surface of the conductive layer, the anti-oxidation layer The material is gold, Ming or its alloy. 098126856 Form No. A0101 Page 16 of 24 0982046016-0
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Cited By (1)

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Publication number Priority date Publication date Assignee Title
TWI573471B (en) * 2013-09-17 2017-03-01 美律實業股份有限公司 Flat thin speaker

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US4312118A (en) * 1980-03-28 1982-01-26 Cts Corporation Method for producing speaker construction
WO2009036282A1 (en) * 2007-09-13 2009-03-19 Harman International Industries, Inc. Loudspeaker cone body
CN101425584B (en) * 2007-11-02 2011-05-04 清华大学 Fuel cell membrane electrode and preparation thereof
JP4589440B2 (en) * 2008-02-01 2010-12-01 ツィンファ ユニバーシティ Linear carbon nanotube structure

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI573471B (en) * 2013-09-17 2017-03-01 美律實業股份有限公司 Flat thin speaker

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