JPH0139200B2 - - Google Patents
Info
- Publication number
- JPH0139200B2 JPH0139200B2 JP10084084A JP10084084A JPH0139200B2 JP H0139200 B2 JPH0139200 B2 JP H0139200B2 JP 10084084 A JP10084084 A JP 10084084A JP 10084084 A JP10084084 A JP 10084084A JP H0139200 B2 JPH0139200 B2 JP H0139200B2
- Authority
- JP
- Japan
- Prior art keywords
- heating coil
- mold
- processing
- conductive wire
- view
- 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.)
- Expired
Links
- 238000010438 heat treatment Methods 0.000 claims description 35
- 230000006698 induction Effects 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 238000004080 punching Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 description 5
- 238000004804 winding Methods 0.000 description 4
- 238000010411 cooking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Landscapes
- General Induction Heating (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Description
【発明の詳細な説明】
(イ) 産業上の利用分野
本発明は誘導加熱調理器の加熱コイルの製造方
法に関する。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a method of manufacturing a heating coil for an induction heating cooker.
(ロ) 従来技術
近年、誘導加熱調理器に用いられる誘導加熱コ
イルとして、製造工程の削減及び製造コストの低
減化のため、実願昭56−104215のように導電板を
打ち抜いて平板状の導電線が渦巻状に形成された
加熱コイルが使用される傾向にある。ところがこ
うした形状の加熱コイルは第２図及びそのＡ−
A′断面図である第３図に示すように、加熱コイ
ル１のコイル面に占める導電線２の面積の割合が
大きくなり、加熱コイル１がコイル１自身の作る
磁界により発熱し、調理器全体の効率が悪くなる
と云う不都合があつた。このため帯状の導電線３
を巻回して加熱コイル４を形成し、第４図及びそ
のＢ−B′断面である第５図に示すように加熱コ
イル４のコイル面に占める導電線３の面積の割合
を小さくすることが考えられている。然し乍ら、
帯状の導電線３は手に入り難く高価であるととも
に帯状の導電線を巻回する作業も面倒になると云
う問題がある。(b) Prior art In recent years, in order to reduce the manufacturing process and manufacturing cost, as induction heating coils used in induction heating cookers, conductive plates are punched out to form flat conductive coils, as in Utility Model Application No. 104215-1983. There is a tendency to use heating coils with spirally formed wires. However, the heating coil of this shape is shown in Fig. 2 and its A-
As shown in Figure 3, which is a cross-sectional view of A', the ratio of the area of the conductive wire 2 to the coil surface of the heating coil 1 increases, and the heating coil 1 generates heat due to the magnetic field generated by the coil 1 itself, causing the entire cooking device to heat up. There was a problem that the efficiency of the system deteriorated. Therefore, the strip-shaped conductive wire 3
It is possible to form a heating coil 4 by winding the conductive wire 4, and to reduce the ratio of the area of the conductive wire 3 to the coil surface of the heating coil 4, as shown in FIG. 4 and FIG. It is considered. However,
There are problems in that the strip-shaped conductive wire 3 is difficult to obtain and expensive, and the work of winding the strip-shaped conductive wire is troublesome.
(ハ) 発明の目的
本発明はこのような点に鑑みて為されたもので
あつて、加熱効率の高い誘導加熱コイルを簡単に
しかも低価格で製造することを目的とする。(c) Purpose of the Invention The present invention has been made in view of the above points, and an object of the present invention is to easily manufacture an induction heating coil with high heating efficiency at a low cost.
(ニ) 発明の構成
本発明は、導電性平板を打ち抜いて帯状の導電
線が渦巻状に巻回された状態の誘導加熱コイルを
製造するに際し、打ち抜き時に上記導電線各所が
平板面に対して所定角度を為すよう折曲する構成
を採る。(d) Structure of the Invention The present invention provides that when manufacturing an induction heating coil in which a conductive wire in the form of a strip is spirally wound by punching out a conductive flat plate, various parts of the conductive wire are pressed against the flat plate surface at the time of punching. The structure is such that it is bent to form a predetermined angle.
(ホ) 実施例
第１図は本発明を実施するために使用されるプ
レス金型の要部斜視図であつて、５，６は一体的
に渦巻状に巻回された固定用上金型及び加工用上
金型を示し、これ等は巻回の中心軸に沿つて上下
方向に互いに摺動するようになつている。７，８
は上記固定用上金型５、加工用上金型６に対応し
た固定用下金型及び加工用下金型であつて一体的
に渦巻状に巻回されていて互いに上下方向に摺動
自在に設けられている。９は上記加工用上金型６
を加工用下金型８方向に付勢する第１のアームユ
ニツトであつて、第６図Ａ，Ｂの要部断面図及び
要部下面図に示すように上記固定用上金型５、加
工用上金型６の巻回中心軸上に設けられた円筒形
の第１のアーム固定部１０、このアーム固定部１
０から四方に延在する第１のアーム１１，１１…
…、この第１のアーム１１，１１……下面に設け
られ、加工用上金型に当接する当接片１２，１２
……から成る。１３は上記固定用上金型５を固定
用下金型７方向に付勢する第２のアームユニツト
を示し、第７図Ａ，Ｂの要部断面図及び要部下面
図に示すように上記第１のアーム固定部１０に被
せられるよう中空円筒形状になつている第２のア
ーム固定部１４、この第２のアーム固定部１４か
ら上記第１のアーム１１，１１……と重ならない
ように四方に延在した第２のアーム１５，１５…
…、この第２のアーム１５，１５……下面に設け
られ、固定用上金型６に当接する当接片１６，１
６……、から成る。(E) Embodiment FIG. 1 is a perspective view of the main parts of a press mold used to carry out the present invention, and 5 and 6 are an integrally spirally wound fixing upper mold. and an upper mold for processing, which are adapted to slide against each other in the vertical direction along the central axis of the winding. 7,8
are a lower fixing mold and a lower processing mold corresponding to the upper fixing mold 5 and the upper processing mold 6, which are integrally wound in a spiral shape and can slide vertically relative to each other. It is set in. 9 is the upper mold 6 for the above processing.
The first arm unit urges the lower mold 5 for processing in the direction of the lower mold 8 for processing, and as shown in the sectional view and bottom view of the main part in FIGS. 6A and B, the upper mold 5 for processing, A cylindrical first arm fixing part 10 provided on the winding center axis of the upper mold 6, this arm fixing part 1
First arms 11, 11... extending in all directions from 0
..., this first arm 11, 11... contact pieces 12, 12 provided on the lower surface and in contact with the upper mold for processing
It consists of... Reference numeral 13 denotes a second arm unit that urges the upper fixing mold 5 in the direction of the lower fixing mold 7, and as shown in the sectional view and bottom view of the main part in FIGS. 7A and 7B, The second arm fixing part 14 has a hollow cylindrical shape so as to be placed over the first arm fixing part 10, and the second arm fixing part 14 is arranged so as not to overlap with the first arms 11, 11... Second arms 15, 15 extending in all directions...
..., this second arm 15, 15... contact pieces 16, 1 provided on the lower surface and in contact with the upper fixing mold 6
Consisting of 6...
このようなプレス金型において、通常固定用上
金型５及び固定用下金型７の対向面は第８図Ａの
ように平坦面となつていて、この固定用金型５，
７で材料となる導電性平板１７を挾持するように
なつている。また、加工用上金型６、加工用下金
型８の対向面は平板１７に対して傾斜をもつ形状
になつている。従つて、こうしたプレス金型を用
いて加熱コイルを作成するに際し、固定用上金型
５と固定用下金型７で導電性平板１７を挾持して
加工用上金型６を第８図Ｂのように下方へ押し下
げることにより、捨てしろ１８，１８……を残し
てこの平板１７が折曲された状態で打ち抜かれ
る。こうして作製された加熱コイル１９は第９図
の如く、コイル巻線となる導電線２０が各所で平
板面に対し所定の角度なす状態になつているの
で、コイル面に占める導電線２０の面積の割合が
小さくなり、自己の発生する磁界によつてコイル
１９自身が誘導加熱されることはない。 In such a press mold, the opposing surfaces of the upper fixing die 5 and the lower fixing die 7 are usually flat surfaces as shown in FIG. 8A, and the fixing die 5,
7 holds a conductive flat plate 17 which is a material. Further, the opposing surfaces of the upper mold 6 for processing and the lower mold 8 for processing have a shape inclined with respect to the flat plate 17. Therefore, when producing a heating coil using such a press die, the conductive flat plate 17 is sandwiched between the upper fixing die 5 and the lower fixing die 7, and the upper die 6 for processing is formed as shown in FIG. 8B. By pressing downward as shown, the flat plate 17 is punched out in a bent state, leaving margins 18, 18, . . . . As shown in FIG. 9, the thus fabricated heating coil 19 has the conductive wire 20 forming the coil winding at each location at a predetermined angle with respect to the flat plate surface, so that the area of the conductive wire 20 on the coil surface is The ratio becomes small, and the coil 19 itself is not induction heated by the magnetic field generated by itself.
第１０図Ａ，Ｂ，Ｃは先端部を丸くし、側部に
逃げ２１を設けた加工用上金型６を用いて誘導性
平板１７を打ち抜いて加熱コイル形成するときの
工程図であつて、加工用上金型６の巾Ｌより逃げ
２１の長さｈの方が大きくなつている。このよう
な打抜きをすることによりコイル面に対して導電
線３が垂直な状態になつた第４図及び第５図の形
状の加熱コイル４が形成される。 FIGS. 10A, B, and C are process diagrams for forming a heating coil by punching an inductive flat plate 17 using an upper processing mold 6 with a rounded tip and a relief 21 on the side. , the length h of the relief 21 is larger than the width L of the upper mold 6 for processing. By performing such punching, a heating coil 4 having the shape shown in FIGS. 4 and 5 in which the conductive wire 3 is perpendicular to the coil surface is formed.
第１１図Ａ，Ｂ，Ｃ及び第１２図Ａ，Ｂ，Ｃ，
Ｄは加工用上金型６と固定用下金型８の形状を同
一にして２つの加熱コイルを同時に形成する工程
を示す断面図であつて、第１１図の場合は１回の
打ち抜きで導電線が加熱コイル面と所定の角度を
為す第９図に示した形状のコイル１９が２個形成
され、第１２図の場合は、１回の打ち抜きで導電
線が加熱コイル面に垂直な第４図及び第５図に示
した形状の加熱コイル４が２個形成される。 Figure 11 A, B, C and Figure 12 A, B, C,
D is a cross-sectional view showing the process of simultaneously forming two heating coils by making the upper mold 6 for processing and the lower mold 8 for fixing the same shape, and in the case of FIG. Two coils 19 having the shape shown in FIG. 9 in which the wire makes a predetermined angle with the heating coil surface are formed, and in the case of FIG. Two heating coils 4 having the shapes shown in the figures and FIG. 5 are formed.
第１３図Ａ，Ｂは第１２図Ａ，Ｂ，Ｃ，Ｄの場
合の加工用上金型６，６……の逃げ２２，２２…
…と固定用下金具７，７……の逃げ２３，２３…
…が対向するように配置することにより捨てしろ
を設けず加熱コイルを打ち抜き形成する工程を示
す断面図である。 13A and 13B are reliefs 22, 22... of the upper molds 6, 6... for processing in the case of FIGS. 12A, B, C, and D.
...and the reliefs 23, 23... of the lower fixing fittings 7, 7...
It is a sectional view showing a process of punching and forming a heating coil without providing any margin by arranging the heating coils so that they face each other.
(ヘ) 発明の効果
以上述べた如く、本発明誘導加熱コイルの製造
方法は導電性平板を打ち抜いて帯状の導電線が渦
巻状に巻回された状態の誘導加熱コイルを製造す
るに際し、打ち抜き時に上記導電線各所が平板面
に対して所定角度を為すよう折曲しているので、
コイル面に占める導電線の面積の割合が小さく自
己発熱の少い加熱効率の高い誘導加熱コイルを簡
単にしかも低価格で製造することが出来る。(F) Effects of the Invention As described above, the method for manufacturing an induction heating coil of the present invention involves punching out a conductive flat plate to manufacture an induction heating coil in which a band-shaped conductive wire is spirally wound. Since each of the above conductive wires is bent at a predetermined angle with respect to the flat plate surface,
An induction heating coil with high heating efficiency and low self-heating due to the small area of the conductive wire occupying the coil surface can be manufactured easily and at low cost.
第１図は本発明誘導加熱コイルの製造方法に用
いられる金型の斜視図、第２図従来の誘導加熱コ
イルの斜視図、第３図は第２図のＡ−A′断面図、
第４図は改良された誘導加熱コイルの斜視図、第
５図は第４図のＢ−B′断面図、第６図Ａ，Ｂは
夫々第１のアームユニツトの要部断面図及び要部
下面図、第７図Ａ，Ｂは夫々第２のアームユニツ
トの要部断面図及び要部下面図、第８図Ａ，Ｂ、
第１０図Ａ，Ｂ，Ｃ、第１１図Ａ，Ｂ，Ｃ、第１
２図Ａ，Ｂ，Ｃ，Ｄ、第１３図Ａ，Ｂはいずれも
本発明誘導加熱コイルの製造方法を工程順に示す
断面図、第９図は、第８図及び第１１図の製造方
法によつて製造される誘導加熱コイルの断面図で
ある。
１，４，１９……加熱コイル、２，３，２０…
…導電線、５……固定用上金型、６……加工用上
金型、７……固定用下金型、８……加工用下金
型、９，１４……アームユニツト、１７……導電
性平板。
Fig. 1 is a perspective view of a mold used in the method for manufacturing an induction heating coil of the present invention, Fig. 2 is a perspective view of a conventional induction heating coil, Fig. 3 is a sectional view taken along line A-A' in Fig. 2,
Fig. 4 is a perspective view of the improved induction heating coil, Fig. 5 is a sectional view taken along line B-B' in Fig. 4, and Figs. 6A and B are sectional views and main parts of the first arm unit, respectively. The bottom view, FIGS. 7A and B are a sectional view of the main part of the second arm unit, and the main bottom view and FIGS. 8A and B, respectively.
Figure 10 A, B, C, Figure 11 A, B, C, 1st
Figures 2A, B, C, and D and Figures 13A and B are cross-sectional views showing the manufacturing method of the induction heating coil of the present invention in order of steps, and Figure 9 is a cross-sectional view showing the manufacturing method of Figures 8 and 11. FIG. 3 is a cross-sectional view of the induction heating coil thus manufactured. 1, 4, 19... heating coil, 2, 3, 20...
...Conductive wire, 5...Upper mold for fixing, 6...Upper mold for processing, 7...Lower mold for fixing, 8...Lower mold for processing, 9, 14...Arm unit, 17... ...Conductive flat plate.
Claims (1)
状に巻回された状態の誘導加熱コイルを製造する
に際し、打ち抜き時に上記導電線各所が平板面に
対して所定角度を為すよう折曲することを特徴と
した誘導加熱コイルの製造方法。1. When punching out a conductive flat plate to produce an induction heating coil in which a band-shaped conductive wire is spirally wound, each part of the conductive wire is bent at a predetermined angle with respect to the plane of the flat plate at the time of punching. A method of manufacturing an induction heating coil characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10084084A JPS60243996A (en) | 1984-05-18 | 1984-05-18 | Method of producing induction heating coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10084084A JPS60243996A (en) | 1984-05-18 | 1984-05-18 | Method of producing induction heating coil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60243996A JPS60243996A (en) | 1985-12-03 |
| JPH0139200B2 true JPH0139200B2 (en) | 1989-08-18 |
Family
ID=14284510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10084084A Granted JPS60243996A (en) | 1984-05-18 | 1984-05-18 | Method of producing induction heating coil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60243996A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100297360A1 (en) * | 2006-08-07 | 2010-11-25 | Messier-Bugatti | Method for densification of porous articles |
| JP6059907B2 (en) * | 2012-08-09 | 2017-01-11 | トクデン株式会社 | Conductive fiber reinforced resin heat processing apparatus and system using the same |
-
1984
- 1984-05-18 JP JP10084084A patent/JPS60243996A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60243996A (en) | 1985-12-03 |
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