JPS59167904A - Wire for audio device - Google Patents

Wire for audio device

Info

Publication number
JPS59167904A
JPS59167904A JP4115483A JP4115483A JPS59167904A JP S59167904 A JPS59167904 A JP S59167904A JP 4115483 A JP4115483 A JP 4115483A JP 4115483 A JP4115483 A JP 4115483A JP S59167904 A JPS59167904 A JP S59167904A
Authority
JP
Japan
Prior art keywords
wire
copper
sound quality
conductor
oxygen
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.)
Granted
Application number
JP4115483A
Other languages
Japanese (ja)
Other versions
JPH0129282B2 (en
Inventor
鎌田 長生
西山 進一
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Cable Ltd
Original Assignee
Hitachi Cable Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Cable Ltd filed Critical Hitachi Cable Ltd
Priority to JP4115483A priority Critical patent/JPS59167904A/en
Priority to CA000449074A priority patent/CA1220121A/en
Priority to DK153384A priority patent/DK156776C/en
Priority to DE8484102603T priority patent/DE3460592D1/en
Priority to EP84102603A priority patent/EP0121152B1/en
Priority to KR1019840001205A priority patent/KR900005751B1/en
Priority to US06/587,774 priority patent/US4582545A/en
Publication of JPS59167904A publication Critical patent/JPS59167904A/en
Publication of JPH0129282B2 publication Critical patent/JPH0129282B2/ja
Priority to US07/515,777 priority patent/USRE34641E/en
Granted legal-status Critical Current

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  • Insulated Conductors (AREA)
  • Conductive Materials (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 本発明は、ステレオに代表されるオーディオ機器の配線
材として使用される心線に関するものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a core wire used as a wiring material for audio equipment such as a stereo.

近年オーディオ機器には、ノイズや歪を少なくして音質
を改・吾する安水、すなわち、良い音を求\ める、傾向が非常に強くなってきている。
In recent years, there has been an extremely strong trend in audio equipment to improve the sound quality by reducing noise and distortion, in other words, seeking better sound.

本発明者らは、オーディオ機器の内部配線材、あるいは
スピーカーコード、マイクロボ/コード、ヘッドホン用
コード寺の導体として、純度の高い鋼線、すなわち、無
酸素銅(OFC)をi更用した「し線を提案し、確実に
音が良くなったという評価を得ている。
The inventors of the present invention have developed a method for using high-purity steel wire, that is, oxygen-free copper (OFC), as an internal wiring material for audio equipment, or as a conductor for speaker cords, microbo/cords, and headphone cords. line, and the sound has definitely improved.

OFCを使用した電線が一般電気銅(TPO)を使用し
た電線より音質が著しく優れている理由として、本発明
者らは次のように考えている。
The present inventors believe that the reason why the sound quality of an electric wire using OFC is significantly superior to that of an electric wire using general electrolytic copper (TPO) is as follows.

すなわち、金属銅は常態では微細結晶からなっており、
結晶と結晶の境界、つま多結晶粒界には酸化物、硫化物
等の不純物が集りやすく、これらは長さ方向にあたかも
微小容量をもったコンデンサ′が直列に1m当り数十個
から数万個も接続されたり断面方向には並列に接続され
た状態にあると考えられる。
In other words, metallic copper normally consists of fine crystals,
Impurities such as oxides and sulfides tend to gather at the boundaries between crystals and at polycrystalline grain boundaries, and these impurities tend to accumulate in the longitudinal direction, as if capacitors with minute capacitances were connected in series, tens to tens of thousands of capacitors per meter. It is thought that the two parts are connected or connected in parallel in the cross-sectional direction.

このため、多重高周波信号である音楽信号に対して位相
差、減衰現象を不可避的に伴い、音質の劣化につながる
が、OFCはTPCよりも結晶粒径が大きく、また静電
容量、検波作用をもち込む亜酸化銅不純物の含有量も約
1/ICl0と少ないため音質の劣化が小さいものと考
えられる。
For this reason, music signals, which are multiple high-frequency signals, are inevitably accompanied by phase differences and attenuation phenomena, leading to deterioration of sound quality. Since the content of cuprous oxide impurities introduced is as small as about 1/ICl0, it is thought that the deterioration in sound quality is small.

しかしながら、T ’P Cに戦べてはるかにすぐれて
いるOFCといえども、上述したように依然として不純
物を含んだ多数の結晶よりなり、より高度の音質を追求
する上では不十分である。
However, even though OFC is far superior in its ability to compete with T'PC, it is still made up of a large number of crystals containing impurities, as described above, and is insufficient in pursuit of higher sound quality.

本発明は上記に基いたもので、より高度の音質が得られ
るオーディオ機器用電線の提供を目的とするものである
The present invention is based on the above, and an object of the present invention is to provide an electric wire for audio equipment that allows higher sound quality to be obtained.

オーディオ機器における回路導体での音質の劣化が上述
した理論に基くとすれば、単結晶または完全なアモ)L
ファス金属を回路導体として使用することにより容量リ
アクタンスが全くなくなり、減衰、位相変化を起すこと
なく完全に忠実に音質が再生されることになる。
If the deterioration of sound quality in circuit conductors in audio equipment is based on the theory mentioned above, single crystal or complete aluminum) L
By using fas metal as a circuit conductor, there is no capacitive reactance, and sound quality is reproduced with complete fidelity without attenuation or phase changes.

かかる知見に基き、本発明者は常温でアモルファス金属
である水銀をプラスチックチューブに封入し、スピーカ
コードとしてステレオ再生音を聞いてみると、従来の銅
導体の場合と比較すれば音質に格段の相違があり、まさ
にレコードに仕組まれた音楽情報が完全に再生されるこ
とを知った。
Based on this knowledge, the present inventor sealed mercury, which is an amorphous metal at room temperature, in a plastic tube and used it as a speaker cord to listen to stereo reproduction sound, and found that there was a significant difference in sound quality compared to the case of conventional copper conductors. I learned that the music information stored on a record can be perfectly reproduced.

ところが、水銀は有害物であり、導体として使用するこ
とはできない。
However, mercury is a toxic substance and cannot be used as a conductor.

このため、導体としては銅を使用しなければならないが
、銅を完全アモルファス状態で導体として使用すること
は不可能であり、次善の策として巨大結晶を生長させ、
結晶粒界を著しく減少させればアモルファス金属に近い
音質を実現できることになる。
For this reason, copper must be used as a conductor, but it is impossible to use copper as a conductor in a completely amorphous state, so the next best option is to grow giant crystals.
By significantly reducing the grain boundaries, it is possible to achieve sound quality close to that of amorphous metals.

かくして、本発明の特徴は酸素含有量が50ppm以下
の無酸素銅線を700℃以上の不活性ガス雰囲気で加熱
し、結晶粒を巨大化させて得た無酸素銅導体により電線
を構成するものである。
Thus, the feature of the present invention is that an electric wire is made of an oxygen-free copper conductor obtained by heating an oxygen-free copper wire with an oxygen content of 50 ppm or less in an inert gas atmosphere at 700° C. or higher to enlarge the crystal grains. It is.

無酸素銅線を700℃以上に加熱するならば結晶は次第
に生長し、900℃に至ると通常0.02〜0.03m
程度の結晶粒は0.4〜0.5 a 程度に生長する。
If oxygen-free copper wire is heated to 700°C or higher, crystals will gradually grow, and when it reaches 900°C, it will usually grow to 0.02 to 0.03 m.
The crystal grains grow to about 0.4 to 0.5 a.

つまシ、結晶粒界は1/20以下に減少するわけであシ
、その分容量リアクタンスは減少し、減衰、位相変化が
小さくなる。
In other words, the grain boundaries are reduced to 1/20 or less, and the capacitance reactance is reduced accordingly, resulting in smaller attenuation and phase change.

また、使用する銅としては、酸素含有量が50ppm以
下である無酸素鋼に限られる。その理由は、第一に亜酸
化鋼を含まないことで音質が向上することであり、第二
に亜酸化鋼あるいは硫化銅が含まれると、これらが結晶
核となって値組結晶になり、巨大化することが不可能な
ためである。
Further, the copper used is limited to oxygen-free steel having an oxygen content of 50 ppm or less. The reason for this is firstly that the sound quality is improved by not containing suboxide steel, and secondly, when suboxide steel or copper sulfide is included, these become crystal nuclei and form crystals. This is because it is impossible to make it huge.

実施例 酸素含有量が5ppmの無酸素銅を加工して得たmm〆
の銅線を、温度900℃に保持したチッ素ガス獲囲気中
に45分間保持し、その後冷却した。
Example A copper wire with a diameter of 1 mm, obtained by processing oxygen-free copper having an oxygen content of 5 ppm, was held in a nitrogen gas surrounding atmosphere maintained at a temperature of 900° C. for 45 minutes, and then cooled.

加熱前の銅線の結晶粒は0.02〜0.0.5 tra
n程度であったのに対し、加熱後の銅線の結晶粒は0.
4〜0.5’mm程度に生長していた。
The crystal grain of the copper wire before heating is 0.02 to 0.0.5 tra
On the other hand, the crystal grains of the copper wire after heating were about 0.
It had grown to about 4 to 0.5 mm.

この銅線の外周にポリエチレン絶縁体を押出被覆するこ
とにより心線を得た。
A core wire was obtained by extrusion coating the outer periphery of this copper wire with a polyethylene insulator.

かくして得られた電線をスピーカコードとしてステレオ
再生音を聞いたところ、従来のQFC”15線と比較し
ても置載の音のぬけと音色は格段にすぐれ、立上りのよ
さは完全アモルファスの水銀導体に対比できるほどすぐ
れたものであった6以上説明してきた通り、本発明は酸
素含有量がboppm以下の無酸素銅線を700°C以
上の不活性ガス芥囲気で加熱し、結晶粒を巨大化させて
得た銅導体を用いてオーディオ機器用心線を構成するも
のであり、かかる心線をスピーカコード等の回路導体と
して使用することにより、きわめて高品質ρ音を実現す
ることが可能となる。
When I listened to stereo playback sound using the wire obtained in this way as a speaker cord, I found that the sound clarity and timbre were much better than the conventional QFC"15 wire, and the start-up was superior to that of a completely amorphous mercury conductor. 6 As explained above, the present invention heats an oxygen-free copper wire with an oxygen content of boppm or less in an inert gas atmosphere at a temperature of 700°C or higher to form large crystal grains. A core wire for audio equipment is constructed using the copper conductor obtained by oxidation, and by using such a core wire as a circuit conductor for a speaker cord, etc., it becomes possible to achieve extremely high quality ρ sound. .

なお、高温加熱によって結I!6巨大化をはかった0’
FC導体を伸線してよ1ll−=fj化すれば、結晶粒
界密度は一層稀薄化して殆んど非晶質金属に近い理想的
な音質効果が得られる。
Note that high temperature heating causes condensation! 6 0' that became gigantic
If the FC conductor is drawn to 1ll-=fj, the grain boundary density will be further diluted, and an ideal sound quality effect almost similar to that of an amorphous metal can be obtained.

なぜならば延伸により巨大結晶が引きのばされ、長さ方
向に伸びるためであり、且つ高温加熱によって脆化しや
すくなった材質を強化することにも役立つのである。
This is because the stretching stretches the giant crystals and stretches them in the length direction, and it also serves to strengthen materials that have become brittle due to high-temperature heating.

手続補正書(自発) 特許片長 官若杉不[」失敗 1、事件の表示 昭和58 年  特   6イr  願第 41154
    号28発 明の名称  オーディオ機器用′電
線a補正をする者 事件との関係      特   許 出願人任 所 
    東京都千代田区丸の内二丁目1番2号名称(5
12)   日立電線株式会社h 所     東京都
千代田区丸の内二丁目1番2号補正の対象 明細書の発明の詳細な説明。
Procedural amendment (spontaneous) Patent Commissioner Kanwakasugi Fu['] Failure 1, indication of the case 1982 Patent No. 6 Ir Application No. 41154
Title of invention No. 28 Relationship with the case of person who amends electric wire a for audio equipment Patent Office of applicant
2-1-2 Marunouchi, Chiyoda-ku, Tokyo Name (5
12) Hitachi Cable Co., Ltd. 2-1-2 Marunouchi, Chiyoda-ku, Tokyo Detailed explanation of the invention of the specification subject to the amendment.

補正の自答 明細書第5頁第2行目の「Ipmグ」を「1.81罐グ
」と訂正する。
"Ipmg" in the second line of page 5 of the amended self-answered specification is corrected to "1.81kg".

以上that's all

Claims (1)

【特許請求の範囲】[Claims] 1、a素含有量が5’0pp1n以下の無酸素銅線を1. Oxygen-free copper wire with a content of 5'0pp1n or less
JP4115483A 1983-03-11 1983-03-11 Wire for audio device Granted JPS59167904A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
JP4115483A JPS59167904A (en) 1983-03-11 1983-03-11 Wire for audio device
CA000449074A CA1220121A (en) 1983-03-11 1984-03-07 Electrical conductor and method of production thereof
DK153384A DK156776C (en) 1983-03-11 1984-03-08 METHOD OF MANUFACTURING AN ELECTRIC WIRE
DE8484102603T DE3460592D1 (en) 1983-03-11 1984-03-09 Method of producing electrical conductor
EP84102603A EP0121152B1 (en) 1983-03-11 1984-03-09 Method of producing electrical conductor
KR1019840001205A KR900005751B1 (en) 1983-03-11 1984-03-09 Method of producing electrical conductor
US06/587,774 US4582545A (en) 1983-03-11 1984-03-09 Method of producing electrical conductor
US07/515,777 USRE34641E (en) 1983-03-11 1990-04-26 Method of producing electrical conductor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4115483A JPS59167904A (en) 1983-03-11 1983-03-11 Wire for audio device

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2129950A Division JPH0630204B2 (en) 1990-05-18 1990-05-18 Method for manufacturing wire rod for audio equipment wiring

Publications (2)

Publication Number Publication Date
JPS59167904A true JPS59167904A (en) 1984-09-21
JPH0129282B2 JPH0129282B2 (en) 1989-06-09

Family

ID=12600499

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4115483A Granted JPS59167904A (en) 1983-03-11 1983-03-11 Wire for audio device

Country Status (1)

Country Link
JP (1) JPS59167904A (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61163504A (en) * 1985-01-14 1986-07-24 住友電気工業株式会社 Conductor for image display device and acoustic device
JPS62139207A (en) * 1985-12-12 1987-06-22 オンキヨー株式会社 Audio cable
JPS62285310A (en) * 1986-06-04 1987-12-11 日本鉱業株式会社 Copper material for audio use
JPS62285311A (en) * 1986-06-04 1987-12-11 日本鉱業株式会社 Audio copper wire and manufacture thereof
JPS63903A (en) * 1986-06-18 1988-01-05 日本鉱業株式会社 Copper material used for video or tv
JPS63904A (en) * 1986-06-18 1988-01-05 日本鉱業株式会社 Copper wire for video or tv and manufacture thereof
JPS6329406A (en) * 1986-07-23 1988-02-08 日立電線株式会社 Electric conductor for audio/video equipment
JPS6388704A (en) * 1986-10-01 1988-04-19 住友電気工業株式会社 Conductor for sound/image equipment
JPS63200406A (en) * 1987-02-14 1988-08-18 パイオニア株式会社 Conductor for information apparatus
JPS643902A (en) * 1987-06-26 1989-01-09 Nippon Mining Co Copper wire for picture display device such as video, television, etc., and manufacture thereof
JPS644444A (en) * 1987-06-26 1989-01-09 Nippon Mining Co Copper wire for sound and its production
JPH0329213A (en) * 1989-06-26 1991-02-07 Sumitomo Electric Ind Ltd Conductor for acoustic and image recording appliance
JPH0466695A (en) * 1990-07-06 1992-03-03 Furukawa Electric Co Ltd:The Heat resisting silver coated copper wire and its production

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6236321A (en) * 1985-08-08 1987-02-17 Teijin Ltd Antitumor agent

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6236321A (en) * 1985-08-08 1987-02-17 Teijin Ltd Antitumor agent

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61163504A (en) * 1985-01-14 1986-07-24 住友電気工業株式会社 Conductor for image display device and acoustic device
JPS62139207A (en) * 1985-12-12 1987-06-22 オンキヨー株式会社 Audio cable
JPS62285310A (en) * 1986-06-04 1987-12-11 日本鉱業株式会社 Copper material for audio use
JPS62285311A (en) * 1986-06-04 1987-12-11 日本鉱業株式会社 Audio copper wire and manufacture thereof
JPS63903A (en) * 1986-06-18 1988-01-05 日本鉱業株式会社 Copper material used for video or tv
JPS63904A (en) * 1986-06-18 1988-01-05 日本鉱業株式会社 Copper wire for video or tv and manufacture thereof
JPS6329406A (en) * 1986-07-23 1988-02-08 日立電線株式会社 Electric conductor for audio/video equipment
JPS6388704A (en) * 1986-10-01 1988-04-19 住友電気工業株式会社 Conductor for sound/image equipment
JPS63200406A (en) * 1987-02-14 1988-08-18 パイオニア株式会社 Conductor for information apparatus
JPS643902A (en) * 1987-06-26 1989-01-09 Nippon Mining Co Copper wire for picture display device such as video, television, etc., and manufacture thereof
JPS644444A (en) * 1987-06-26 1989-01-09 Nippon Mining Co Copper wire for sound and its production
JPH042656B2 (en) * 1987-06-26 1992-01-20
JPH0329213A (en) * 1989-06-26 1991-02-07 Sumitomo Electric Ind Ltd Conductor for acoustic and image recording appliance
JPH0466695A (en) * 1990-07-06 1992-03-03 Furukawa Electric Co Ltd:The Heat resisting silver coated copper wire and its production
JPH058276B2 (en) * 1990-07-06 1993-02-01 Furukawa Electric Co Ltd

Also Published As

Publication number Publication date
JPH0129282B2 (en) 1989-06-09

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