JPS6154799A - Manufacture of voice coil - Google Patents

Manufacture of voice coil

Info

Publication number
JPS6154799A
JPS6154799A JP17654984A JP17654984A JPS6154799A JP S6154799 A JPS6154799 A JP S6154799A JP 17654984 A JP17654984 A JP 17654984A JP 17654984 A JP17654984 A JP 17654984A JP S6154799 A JPS6154799 A JP S6154799A
Authority
JP
Japan
Prior art keywords
bobbin
heating
coil
jig
heating jig
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP17654984A
Other languages
Japanese (ja)
Inventor
Yoichi Suzuki
洋一 鈴木
Akihiro Nakamura
中村　明宏
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic Corp
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 Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Priority to JP17654984A priority Critical patent/JPS6154799A/en
Publication of JPS6154799A publication Critical patent/JPS6154799A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/046—Construction

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

PURPOSE:To improve an adhesive force of a coil and a bobbin by heating a heating jig set in a bobbin with a heater instead of heating processing in a heating furnace and executing a heating processing. CONSTITUTION:A bobbin 5, in which a coil 4 is wound in a closely-coiled manner, is set to a heating jig 6 having an outer diameter almost equal to the inner diameter. At the center of the heating jig 6, a heating heater 7 is installed. Next, the heating jig 6 is heated by the heater 7. Heat of the heated heating jig 6 is transferred through the bobbin 5 and the said bobbin 5 to the coil 4. By the hea, adhesives bonding the bobbin 5 and the coil 4 are heated and hardened. At this time, the bobbin is expanded by thermal expansion of the heating jig 6 and the bobbin 5 and the coil 4 becomes closely adhered.

Description

【発明の詳細な説明】 〔発明の技術分野〕 本発明はボイスコイルの製造方法に関するものである。[Detailed description of the invention] [Technical field of invention] The present invention relates to a method of manufacturing a voice coil.

〔発明の技術的背景およびその問題点〕ボイスコイルの
製造方法として、例えば第２図に示すように、コイル１
を巻回したボビン２内に熱変形防止のための加熱治具３
をセットし、これを加熱炉内に入れてコイル１とボビン
２とを接着する接着剤を加熱処理し硬化させる方法が知
られている。[Technical background of the invention and its problems] As a method for manufacturing a voice coil, for example, as shown in FIG.
A heating jig 3 to prevent thermal deformation is placed inside the bobbin 2 wound with
There is a known method in which the coil 1 and the bobbin 2 are set in a heating furnace, and the adhesive used to bond the coil 1 and the bobbin 2 is heated and hardened.

この方法では、加熱処理するに際し、炉内温度の上昇に
ともないコイル１、加熱治具３が昇温するが、熱容量の
小さなコイルｌは加熱治具３よりも昇温速度が速く、こ
のため加熱治具３が熱膨張してボビン２を押し拡げても
、コイル１の方が大きく熱膨張し、この結果コイル１と
ボビン２の接着を強固にすることができず、ボイスコイ
ルの動作時にボビン２からコイル１が脱落する問題があ
った。In this method, during heat treatment, the temperature of coil 1 and heating jig 3 rises as the temperature inside the furnace rises, but the temperature of coil 1, which has a small heat capacity, increases faster than that of heating jig 3, and therefore the heating Even if the jig 3 thermally expands and pushes the bobbin 2 apart, the coil 1 expands more thermally than the bobbin 2. As a result, the bond between the coil 1 and the bobbin 2 cannot be strengthened, and the bobbin 2 cannot be firmly bonded when the voice coil operates. There was a problem with coil 1 falling off from 2.

（発明の目的〕 本発明は上記事情に鑑みてなされたもので、その目的と
するところは、ボビンとコイルの接着力を向上させるこ
とができるボイスコイルの製造方法を提供することであ
る。(Object of the Invention) The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a method for manufacturing a voice coil that can improve the adhesive force between the bobbin and the coil.

〔発明の実施例〕[Embodiments of the invention]

以下本発明の一実施例を図面を参照して説明する。 An embodiment of the present invention will be described below with reference to the drawings.

第１図に示すように、まず、コイル４を密巻状に巻回し
たボビン５を、その内（蚤とほぼ等しい外径を有する加
熱治具６にセットする。この加熱冶具６の中央部には加
熱ヒータ７が設けられている。As shown in FIG. 1, first, a bobbin 5 on which a coil 4 is tightly wound is set in a heating jig 6 having an outer diameter approximately equal to that of a flea. A heater 7 is provided.

次いで、加熱ヒータ７により加熱治具６を加熱［。Next, the heating jig 6 is heated by the heater 7 [.

する。加熱された加熱治具６の熱はボビン５及び該ボビ
ン５を介してコイル４に伝えられ、この熱によりボビン
５とコイル４とを接着する接着剤が加熱処理されて硬化
する。do. The heat of the heated heating jig 6 is transmitted to the coil 4 via the bobbin 5 and the bobbin 5, and the adhesive bonding the bobbin 5 and the coil 4 is heated and hardened by this heat.

このとき、加熱治具６の方がコイル４よりも温度が高く
なっており、このため加熱治具６の熱膨張によりボビン
５が押し拡げられてボビン５とコイル４とが密着するこ
とになる。なお、加熱治具６は、ボビン５に熱を伝える
と共にボビン５を押し拡げる作用をする以外に、ボビン
５が熱変形するのを阻止する作用がある。At this time, the temperature of the heating jig 6 is higher than that of the coil 4, and therefore, the bobbin 5 is pushed out by the thermal expansion of the heating jig 6, and the bobbin 5 and the coil 4 are brought into close contact with each other. . The heating jig 6 has the function of transmitting heat to the bobbin 5 and pushing and expanding the bobbin 5, and also has the function of preventing the bobbin 5 from deforming due to heat.

加熱処理が終了したら加熱ヒータ７の動作を停止して冷
却する。室温程度まで冷却されたら、ボビン５を加熱治
具６から外ｆ。When the heating process is completed, the operation of the heater 7 is stopped and cooling is performed. When the bobbin 5 has cooled to about room temperature, remove it from the heating jig 6.

この実施例では、ボビン５を加熱冶具６にセットするセ
ット工程と、加熱工程と、冷却工程と、ボビン５を加熱
冶具６から外す取外し工程の４工程ですみ、前述の従来
例の場合（ボビン２を加熱治具３にセットするセット工
程と、加熱炉内に入れる工程と、加熱工程と、冷却工程
と、加熱炉から取り出す工程と、ボビン２を加熱冶具３
から外す取外し工程からなる。）に比して２工程省略す
ることができる。In this embodiment, only four steps are required: a setting step for setting the bobbin 5 on the heating jig 6, a heating step, a cooling step, and a removal step for removing the bobbin 5 from the heating jig 6. 2 to the heating jig 3; a step of putting the bobbin 2 into the heating furnace; a heating step; a cooling step; a step of taking out the bobbin 2 from the heating jig 3;
It consists of a removal process. ), two steps can be omitted.

上記実施例では、加熱ヒータ７が一体に設けられた加熱
治具６を使用した場合を示したが、別体のものを使用し
て後で加熱ヒータ７を取付けるようにしてもよく、また
加熱治具６を平板状のヒータに載置して加熱するように
してもよい。In the above embodiment, the heating jig 6 with the heater 7 integrated therein was used, but it is also possible to use a separate one and attach the heater 7 later. The jig 6 may be placed on a flat heater and heated.

〔発明の効果〕〔Effect of the invention〕

゛以上説明したように本発明によれば、加熱炉内で加熱
処理をする代わりにポビン内にセットした加熱治具を加
熱ヒータで直接加熱して加熱処理を行うので、熱膨張し
た加熱治具によりボビンが押し拡げられてコイルに密着
するため、コイルとボビンの接着力を向上させることが
でき、ボイスコイルを動作させたときに、ボビンからコ
イルが脱落するようなおそれがなくなる。゛As explained above, according to the present invention, instead of performing heat treatment in a heating furnace, the heating jig set in the pot bin is directly heated with a heating heater to perform heat treatment, so that the heating jig that has expanded thermally Since the bobbin is pushed out and brought into close contact with the coil, the adhesive force between the coil and the bobbin can be improved, and there is no fear that the coil will fall off from the bobbin when the voice coil is operated.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明の詳細な説明する半裁断面図、第２図は
従来の方法を説明する半裁断面図である。 ４・・・コイル、５・・・ボビン、６・・・加熱治具、
７・・・加熱ヒータ。FIG. 1 is a half-cut sectional view explaining the present invention in detail, and FIG. 2 is a half-cut sectional view explaining the conventional method. 4... Coil, 5... Bobbin, 6... Heating jig,
7... Heater.

Claims (1)

【特許請求の範囲】[Claims] コイルを巻回したボビン内にその内径とほぼ等しい外径
を有する加熱治具をセットし、この後、該加熱治具を加
熱ヒータで加熱することによりボビンとコイルを接着す
る接着剤を加熱処理することを特徴とするボイスコイル
の製造方法。A heating jig having an outer diameter approximately equal to the inner diameter of the bobbin around which the coil is wound is set, and then the heating jig is heated with a heater to heat-treat the adhesive that bonds the bobbin and the coil. A method for manufacturing a voice coil characterized by:
JP17654984A 1984-08-27 1984-08-27 Manufacture of voice coil Pending JPS6154799A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17654984A JPS6154799A (en) 1984-08-27 1984-08-27 Manufacture of voice coil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17654984A JPS6154799A (en) 1984-08-27 1984-08-27 Manufacture of voice coil

Publications (1)

Publication Number Publication Date
JPS6154799A true JPS6154799A (en) 1986-03-19

Family

ID=16015524

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17654984A Pending JPS6154799A (en) 1984-08-27 1984-08-27 Manufacture of voice coil

Country Status (1)

Country Link
JP (1) JPS6154799A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5553997A (en) * 1978-10-16 1980-04-19 Matsushita Electric Ind Co Ltd Manufacture of voice coil

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5553997A (en) * 1978-10-16 1980-04-19 Matsushita Electric Ind Co Ltd Manufacture of voice coil

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