JPS59228388A - Method of producing induction heating coil - Google Patents

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】 産業上の利用分野 本発明は誘導加熱調理器などに用いられる誘導加熱用コ
イルの製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method of manufacturing an induction heating coil used in an induction heating cooker or the like.

従来例の構成とその問題点 一般に、誘導加熱調理器などのように、高周波磁界を発
生して被加熱物を加熱する器具に使用される誘導加熱用
コイルには、出力に応じた高周波大電流を流す必要があ
る。高周波電流には表皮効果があり、表皮効果による誘
導加熱用コイルの発熱を抑制するためにコイル材として
、高耐熱性電気絶縁樹脂層を表面に備えた素線全複数本
束ねた集合線が使用されている。第１図において、１は
誘導加熱用コイルであり、導電性材料からなり、ポリエ
ステル樹脂等の高耐熱性の電気絶縁樹脂層１ａｆ表面に
有する複数本の素線１ｂを束ねて集合線１Ｃとし、これ
全同心円状に巻回して成形し、支持板３上に載置してい
る。さらに他部品との電気的接続部分１ｄを形成するた
め、電気的接続部分１ｄにおける電気絶縁樹脂層１ａを
剥離して端子金具２を挿入圧着している。前記電気的接
続部分１ｄにおける電気絶縁樹脂層１ａの剥離方法とし
て、第２図に示すように客語４内に強アルカリ性の剥離
液６金入れ、この剥離Ｉ′（ダ５をガスバーナ６等で約
１００’Ｃの高温に加熱し、剥離液５に集合線１Ｃの電
気的接続部分１ｄを浸し、この電気的接続部分１ｄにお
ける電気絶縁樹脂層１ａ全完全に溶かし、その後、水等
にて前記剥離液５が電気的接続部分１ｄに残らないよう
洗浄していた。Conventional configurations and their problems In general, induction heating coils used in appliances that heat objects by generating a high-frequency magnetic field, such as induction heating cookers, have a high-frequency large current depending on the output. It is necessary to flow. High-frequency current has a skin effect, and in order to suppress the heat generation of the induction heating coil due to the skin effect, the coil material is a bundle of multiple wires with a highly heat-resistant electrically insulating resin layer on the surface. has been done. In FIG. 1, reference numeral 1 denotes an induction heating coil, which is made of a conductive material and has a plurality of wires 1b on the surface of a highly heat-resistant electrically insulating resin layer 1af such as polyester resin, which is bundled together to form a collective wire 1C. This is formed by winding it all concentrically and placed on the support plate 3. Furthermore, in order to form an electrical connection part 1d with other parts, the electrically insulating resin layer 1a in the electrical connection part 1d is peeled off, and the terminal fitting 2 is inserted and crimped. As a method of peeling off the electrically insulating resin layer 1a at the electrical connection portion 1d, as shown in FIG. Heating to a high temperature of about 100'C, immersing the electrical connection part 1d of the collective wire 1C in stripping liquid 5, completely dissolving the electrically insulating resin layer 1a in this electrical connection part 1d, and then removing the above-mentioned material with water etc. The electrical connection portion 1d was cleaned so that no stripping liquid 5 remained on the electrical connection portion 1d.

しかし、この方法では電気絶縁樹脂層１ａが高耐熱性の
樹脂“であったり、その皮膜厚さが厚い場合には、剥Ｍ
液５に集合線１ｃの剥離部分を長時間隔しておかなけれ
ば完全に剥離できず、作業能率が悪かったいこれは高耐
熱性樹脂は熱的にも化学的にも安定であり劣化し−にく
いからである。壕だ前記の如く、剥離液６は強アルカリ
性で劇薬であるので、洗浄する必要があり作業能率が悪
いとともに、その廃水処理にも手間をとるという欠点が
あった。丑だ他の方法として第３図に示すように電気的
接続部分１ｄにおける電気絶縁樹脂層１ａを金属製のブ
ラシ７等によって機械的に削って剥離する方法がとられ
ているが、この方法では、電気的接続部分１ｄ全体を均
一にブラッシングしたとしても、第４図のように素線１
ｂの表面の電気絶縁樹脂層１ａが均一に削られず、素線
１ｃがすり割り状に削られるものが生じ、不良原因とな
るという問題点があった。また素線１ｂを一本づつ削っ
た場合には非常に時間がかがるという問題点があった。However, in this method, if the electrically insulating resin layer 1a is made of a highly heat-resistant resin or its film thickness is thick, peeling is difficult.
Unless the peeled part of the aggregate wire 1c is left in the liquid 5 for a long time, it cannot be completely peeled off, resulting in poor work efficiency.This is because the highly heat-resistant resin is thermally and chemically stable and will not deteriorate. This is because it is difficult. As mentioned above, the stripping liquid 6 is strongly alkaline and a powerful chemical, so it has to be washed, resulting in poor work efficiency and the disadvantage that it takes time and effort to treat the wastewater. Another method, as shown in FIG. 3, is to mechanically scrape and peel off the electrically insulating resin layer 1a at the electrical connection portion 1d using a metal brush 7, etc., but this method , even if the entire electrical connection part 1d is brushed uniformly, the strands 1 as shown in FIG.
There was a problem in that the electrically insulating resin layer 1a on the surface of b was not uniformly scraped, and some of the wires 1c were scraped in a slotted manner, resulting in defects. Another problem is that it takes a lot of time to shave off the wires 1b one by one.

これは電気絶縁樹脂層１ａと素線１ｂの接着力が非常に
強いのでブラッシングでは容易にはがれないためである
。This is because the adhesive force between the electrically insulating resin layer 1a and the wire 1b is so strong that it cannot be easily removed by brushing.

発明の目的 本発明は上記従来の欠点全解消するもので、誘導加熱調
理器等の誘導加熱用コイルに使用される電気絶縁樹脂層
をその表面に有する素線を複数本束ねた集合線の電気的
接続部分に於ける電気絶縁樹脂層の剥離作業を極めて簡
素化するもので、作業時間を大幅に短縮するとともに、
剥離作業環境の改善全行うこと全目的とする。Purpose of the Invention The present invention is intended to eliminate all of the above-mentioned drawbacks of the conventional technology. This greatly simplifies the process of peeling off the electrically insulating resin layer at the joints, significantly shortens the work time, and
The overall purpose is to improve the stripping work environment.

発明の構成 上記目的を達するため、本発明の誘導加熱用コイルの製
活力法は、電気絶縁樹脂層を表面例有する素線全複数本
束ねて集合線とし、この集合線の他部品との電気的接続
部分における前記電気絶縁樹脂層をガスバーナなどの炎
により焼いて炭化させた後、除去する方法であり、極め
て短時間で確実に素線の表面の電気絶縁樹脂層を剥離で
きるとともに、その作業は極めて簡単で、強アルカリ性
で劇薬である剥離液の使用音なくしたり、その使用全最
小限に抑えたり、剥離液の濃度あるいは、温度を低くし
ても剥離することができるという効果を有するものであ
る。Structure of the Invention In order to achieve the above object, the method for manufacturing an induction heating coil of the present invention is to bundle a plurality of wires each having an electrically insulating resin layer on the surface to form an assembled wire, and to conduct electrical connections with other parts of the assembled wire. This is a method in which the electrically insulating resin layer at the connecting portion is burned and carbonized using a flame such as a gas burner, and then removed.The electrically insulating resin layer on the surface of the wire can be reliably peeled off in an extremely short time, and the process is easy. It is extremely simple and has the effect of eliminating the noise of using a strongly alkaline and powerful stripping solution, minimizing its use, and allowing stripping even when the concentration or temperature of the stripping solution is lowered. It is.

実施例の説明 以下、本発明の実施例について第５図を参照して説明す
る。なお、第６図において、従来例と同一構成物に対し
同一番号を付し、説明を省略する。DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to FIG. In FIG. 6, the same components as those in the conventional example are given the same numbers, and their explanations will be omitted.

本実施例の製造方法は第６図に示すように電気絶縁樹脂
層１ａｉその表面に有する導電材料製の素線１ｂ全複数
本束ねて集合線１Ｇとし、この集合線１ｃの他部品との
電気的接続部分１（ｉｉガスバーナ６の炎にあ了て、そ
の電気的接続部分１ｄにおける電気絶縁樹脂層１ａｉ焼
き、炭化させ、素線１ｂとの接着力を極度に減少させた
後に、金属ブラシ７により、電気的接続部分１ａｌ一様
にブラッシングして電気絶縁樹脂層ｉａｌ剥離している
。As shown in FIG. 6, the manufacturing method of this embodiment is to bundle all the plurality of wires 1b made of conductive material on the surface of the electrically insulating resin layer 1ai to form a collective wire 1G, and to connect the electrically insulating resin layer 1ai with other parts to form a collective wire 1G. After burning and carbonizing the electrically insulating resin layer 1ai in the electrically connecting portion 1d by the flame of the gas burner 6 and extremely reducing the adhesive force with the wire 1b, the metal brush 7 Therefore, the electrically insulating resin layer ial is peeled off by uniformly brushing the electrical connection portion 1al.

一般に高耐熱性を有するポリエステル等の電気絶縁樹脂
層１ａは熱的にも化学的にも安定で、導電材料製の素ａ
１１ｂとの接着力は極めて強いが、本実施例のようにガ
スバーす６の火炎に当てて焼くことにより電気絶縁樹脂
層１ａｉ炭化すればボロポロになり、剥離液を用いなく
とも金属ブラシ７等で、軽くブラッシングするだけで容
易に電気絶縁樹脂層１ａを剥離することができ、しかも
炎に当てて炭化するのは数秒間でできるので、その剥離
作業は極めて短時間でできるという効果を有する。さら
に、本実施例のごとく、剥離ｇＪｉ、全使用しない場合
には、剥離後の剥離液の洗浄、あるいは廃液の処理等が
不要で、作業者の健康管理にも気をつける必要がない。In general, the electrically insulating resin layer 1a made of polyester or the like having high heat resistance is thermally and chemically stable, and is made of a conductive material.
Although the adhesive force with the electrically insulating resin layer 1ai is extremely strong, if it is carbonized by exposing it to the flame of the gas bar 6 as in this example, it will become crumbly, and it can be removed with a metal brush 7 or the like without using a stripping liquid. The electrically insulating resin layer 1a can be easily peeled off by simply brushing it lightly, and it can be carbonized by exposing it to a flame in a few seconds, so the peeling work can be done in an extremely short time. Furthermore, as in this embodiment, if the peeling gJi is not used at all, there is no need to wash the peeling liquid after peeling or treat waste liquid, and there is no need to take care of the health of the worker.

また電気絶縁樹脂層１ａの周囲にエポキシ系の高耐熱自
己融着層を塗膜した自己融着線の集合純金コイル材とし
て用いる誘導加熱用コイルもあるが、この高耐熱性樹脂
する自己融着線の集合線の剥離を、従来の剥離剤によっ
て行うことは、さらにむづかしく、剥離時間が長くかか
り非能率となるが、本発明の剥離方法で行えば極めて簡
単である。なお、以上の実施例に於て電気絶縁樹脂層１
ａを炎で焼いて炭化した後に、金属ブラシ７でかき落し
て剥離したが、金属ブラシ７でかき落すかわりに剥離液
に浸してもよい。この場合、第２図で示したような従来
の方法、すなわち電気的接続部分１ｄを直接剥離液に浸
す方法に対して、剥離液の濃度を低濃度にしても、ある
いはその剥離液を高温に加熱しなくても完全に剥離でき
、さらに剥Ｎ＃液に侵す時間を格段に短縮できるという
効果がある１、マた、剥離液を低濃度にできるというこ
とはその洗浄作業あるいは廃液処理を簡単にすることが
でき、剥離作業者の健康管理上に於ても好ましい。There is also an induction heating coil that is used as a pure gold coil material made of self-fusing wires coated with an epoxy-based high heat-resistant self-fusing layer around the electrically insulating resin layer 1a. Peeling the assembled wires using conventional stripping agents is more difficult and requires a long stripping time, resulting in inefficiency, but the stripping method of the present invention is extremely simple. In addition, in the above embodiment, the electrically insulating resin layer 1
A was burnt with a flame and carbonized, and then scraped off with a metal brush 7 to peel it off. However, instead of scraping it off with the metal brush 7, it may be immersed in a stripping solution. In this case, compared to the conventional method shown in Fig. 2, in which the electrical connection part 1d is directly immersed in the stripping solution, even if the concentration of the stripping solution is lowered or the stripping solution is heated to a high temperature. It can be completely removed without heating, and it has the effect of significantly shortening the time it takes to soak in the stripping solution. 1. Also, the fact that the stripping solution can be kept at a low concentration makes cleaning work or waste liquid treatment easier. This is preferable from the viewpoint of health management of the peeling operator.

発明の効果 以上のように本発明によれば次の効果を得ることができ
る。Effects of the Invention As described above, according to the present invention, the following effects can be obtained.

（１）素線表面の電気絶縁樹脂層の剥離を極めて簡単に
することができ、剥離作業時間を大幅に短縮できる、 （２）一般に劇薬であり、取り扱いに手間のかかる剥離
液の使用をなくすか、あるいはその使用時間全短縮した
り、剥離液の濃度を下げたり、使用温度を下げることが
できるので、剥離作業に要する時間を大幅に短縮でき、
作業者の健康管理上に於ても好ましくなる。。(1) The electrically insulating resin layer on the surface of the strands can be removed extremely easily, and the time taken to remove it can be significantly shortened. (2) The use of stripping liquid, which is generally a powerful chemical and requires time and effort to handle, is eliminated. It is possible to shorten the entire use time, lower the concentration of the stripping solution, and lower the operating temperature, so the time required for stripping work can be significantly shortened.
It is also favorable in terms of health management of workers. .

（３）高ｆｉｉｉＪ熱性絶縁樹脂層のさらに表面に耐熱
性の自己融着層全備えた自己融着線は熱的にも化学的に
も一段と安定であるため、従来の剥離方法に比して、（
１）　、　（２）で述べた本発明の効果は、さらに顕著
なものとなる。(3) The self-bonding wire, which has a heat-resistant self-bonding layer on the surface of the high-fiiiiJ heat-resistant insulating resin layer, is more stable both thermally and chemically, compared to conventional peeling methods. ,(
The effects of the present invention described in 1) and (2) become even more remarkable.

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

第１図は一般的な誘導加熱用コイルの構成を示す斜視図
、第２図Ａ、Ｂ、Ｃ及び第３図は従来の製造方法を示す
工程図、第４図は第３図に示す製造方法によって生じる
電気絶縁樹脂層の剥離状況金示す一部斜視図、第５図Ａ
、Ｂは本発明の一実施例における誘導加熱用コイルの製
造方法を示す工程図である。 １・・・・・・誘導加熱用コイル、１ａ・・・・・・電
気絶縁樹脂層、１ｂ・・・・・素線、１ｃ・・・・・・
集合線、１ｄ・・・・・電気的接続部分、６・・・・−
ガスバーナ。 代理人の氏名　−Ｊｆ理士　中　尾　敏　男　ほか１名
菓　１　図 第２図 （Ａ） （βう （Ｃ，） 第３図 第５図 （Ａ）Figure 1 is a perspective view showing the configuration of a general induction heating coil, Figures 2A, B, C and 3 are process diagrams showing the conventional manufacturing method, and Figure 4 is the manufacturing process shown in Figure 3. Partial perspective view showing peeling of the electrically insulating resin layer caused by the method, Figure 5A
, B are process diagrams showing a method for manufacturing an induction heating coil in an embodiment of the present invention. 1... Coil for induction heating, 1a... Electrical insulating resin layer, 1b... Element wire, 1c...
Collective line, 1d...Electrical connection part, 6...-
gas burner. Name of agent - JF Physician Toshio Nakao and 1 other famous person 1 Figure 2 (A) (βU (C,) Figure 3 Figure 5 (A)

Claims (1)

【特許請求の範囲】[Claims] 電気絶縁樹脂層を表面に有する素線を複数本束ねて集合
線とし、この集合線の他部品との電気的接続部分におけ
る前記電気絶縁樹脂層をガスバーナなどの炎により焼い
て炭化させた後、除去する誘導加熱用コイノ？の製造方
法。A plurality of wires having an electrically insulating resin layer on the surface are bundled together to form an assembled wire, and the electrically insulating resin layer at the electrical connection portion with other parts of the assembled wire is burnt and carbonized with a flame of a gas burner, etc., and then Koino for induction heating to remove? manufacturing method.