JPH0719649B2 - High frequency induction heating device - Google Patents
High frequency induction heating deviceInfo
- Publication number
- JPH0719649B2 JPH0719649B2 JP2094857A JP9485790A JPH0719649B2 JP H0719649 B2 JPH0719649 B2 JP H0719649B2 JP 2094857 A JP2094857 A JP 2094857A JP 9485790 A JP9485790 A JP 9485790A JP H0719649 B2 JPH0719649 B2 JP H0719649B2
- Authority
- JP
- Japan
- Prior art keywords
- coil
- opening
- high frequency
- peripheral portion
- secondary coil
- 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 - Lifetime
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- General Induction Heating (AREA)
Description
【発明の詳細な説明】 ＜産業上の利用分野＞ 本発明はカレントトランスの１次コイルを蚊取線香型と
し、二次コイルとわーく加熱用の高周波加熱コイルとを
一体形成した高周波誘導加熱装置に関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention uses a mosquito coil as a primary coil of a current transformer, and a high frequency induction in which a secondary coil and a high frequency heating coil for frame heating are integrally formed. Regarding a heating device.
＜従来の技術＞ 以下、図面を参照して従来の技術を説明する。第５図は
例えば多量のスタッドピンを順次加熱する高周波誘導加
熱装置の一例の説明図である。<Conventional Technology> A conventional technology will be described below with reference to the drawings. FIG. 5 is an explanatory view of an example of a high frequency induction heating device for sequentially heating a large number of stud pins.
まず、ワークであるスタッドピンＷをターンテーブル５
上に複数個設けられたワーク載置台６の内の一つの載置
台の上に手作業或いは機械によって載置する（スタッド
ピンW1の位置）。ワーク載置台６には、スタッドピンＷ
が安定してワーク載置台６上に載置されているように、
スタッドピンＷの外形に対応した形状の凹所6aが形成さ
れている。First, turn the stud pin W, which is a workpiece, into the turntable 5
Placed by hand or machine on one of the mounting table of the workpiece mounting table 6 provided plural in the upper (the position of the stud pin W 1). The work table 6 has a stud pin W
Is stably placed on the work placing table 6,
A recess 6a having a shape corresponding to the outer shape of the stud pin W is formed.
ターンテーブル５が軸７を中心として矢印Ａの方向に所
定角度回転後停止して、スタッドピンＷが高周波加熱コ
イル４の直下にくると（スタッドピンW2の位置）、カレ
ントトランス３が高周波加熱コイル４と共に、矢印Ｂの
方向に、図示しないコイル昇降装置によって降下して高
周波加熱コイル４がスタッドピンＷを囲繞する。そし
て、高周波電源１から、可撓導体２を経由してカレント
トランス３の図示しない１次コイルに給電された高周波
電流は、カレントトランス３の図示しない２次コイルを
経て高周波加熱コイル４に所定時間通電されてスタッド
ピンＷが加熱される。When the turntable 5 rotates around the shaft 7 in the direction of the arrow A by a predetermined angle and then stops, and the stud pin W comes directly under the high frequency heating coil 4 (position of the stud pin W 2 ), the current transformer 3 heats the high frequency. Together with the coil 4, the high frequency heating coil 4 surrounds the stud pin W by descending in the direction of arrow B by a coil lifting device (not shown). Then, the high frequency current supplied from the high frequency power source 1 to the primary coil (not shown) of the current transformer 3 via the flexible conductor 2 passes through the secondary coil (not shown) of the current transformer 3 to the high frequency heating coil 4 for a predetermined time. The stud pin W is heated by being energized.
この加熱が終了すると、高周波加熱コイル４のスタッド
ピンＷに対向した面に設けた図示しない冷却液噴射孔か
ら冷却液が噴射されてスタッドピンＷの焼入が終了す
る。その後、カレントトランス３は高周波加熱コイル４
と共に、矢印Ｂと反対方向に、前記コイル昇降装置によ
って上昇される。すると、ターンテーブル５が矢印Ａの
方向に所定角度回転して停止する（スタッドピンW3の位
置）ので、スタッドピンＷを手作業或いは機械によって
ワーク載置台６の上から取り去る。When this heating is completed, the cooling liquid is injected from a cooling liquid injection hole (not shown) provided on the surface of the high-frequency heating coil 4 facing the stud pin W, and the quenching of the stud pin W is completed. After that, the current transformer 3 is the high frequency heating coil 4
At the same time, it is lifted by the coil lifting device in the direction opposite to the arrow B. Then, the turntable 5 rotates by a predetermined angle in the direction of arrow A and stops (position of the stud pin W 3 ), so that the stud pin W is removed from the work mounting table 6 manually or by a machine.
＜発明が解決しようとする課題＞ 上記のように、従来の高周波誘導加熱装置では、大きな
重量であるカレントトランス３を昇降させるので、この
カレントトランス３の昇降のための装置を必要とし、従
って、高周波誘導加熱装置の構造を複雑にしているのみ
ならず、コストを高くしている。<Problems to be Solved by the Invention> As described above, in the conventional high-frequency induction heating device, since the current transformer 3 having a large weight is moved up and down, a device for raising and lowering the current transformer 3 is required. Not only is the structure of the high-frequency induction heating device complicated, but the cost is also increased.
本発明は上記事情に鑑みて創案されたものであって、カ
レントトランスを昇降さける必要がなく、従って、構造
が簡単で廉価な高周波誘導加熱装置を提供することを目
的としている。The present invention was devised in view of the above circumstances, and an object thereof is to provide a high-frequency induction heating device which does not require the lifting and lowering of a current transformer and therefore has a simple structure and is inexpensive.
＜課題を解決するための手段＞ 上記問題を解決するために、本発明の高周波誘導加熱装
置は、２次コイルと、この２次コイルの下方に固定して
設けた１次コイルとを備え、２次コイルに第１および第
２の開口と両開口間を繋ぐ挾隙とを設け、また、１次コ
イルを第１の開口の周辺部分の形状に対応するように形
成し且つ前記周辺部分に対応するように配置して１次コ
イルと第１の開口の周辺部分とで平面対向型のカレント
トランスを形成すると共に、第２の開口の周辺部分で加
熱コイルを形成し、１次コイルに高周波電流を通電する
ことによって第２の開口内に設置したワークを加熱する
ようにしている。<Means for Solving the Problems> In order to solve the above problems, a high-frequency induction heating device of the present invention includes a secondary coil and a primary coil fixedly provided below the secondary coil, The secondary coil is provided with first and second openings and a gap connecting both the openings, and the primary coil is formed so as to correspond to the shape of the peripheral portion of the first opening and is provided in the peripheral portion. The primary coil and the peripheral portion of the first opening are arranged in a corresponding manner to form a plane-opposing type current transformer, and the heating coil is formed in the peripheral portion of the second opening to form a high frequency wave in the primary coil. The work installed in the second opening is heated by passing an electric current.
＜作用＞ １次コイルに高周波電流を所定時間通電すると、２次コ
イルの第１の開口、狭隙および第２の開口の周辺には誘
導電流が流れる。この誘導電流によって前記第２の開口
内に設置されたワークに誘導電流が流れてワークが加熱
される。<Operation> When a high frequency current is applied to the primary coil for a predetermined time, an induced current flows around the first opening, the narrow gap and the second opening of the secondary coil. Due to this induced current, an induced current flows through the work set in the second opening and the work is heated.
＜実施例＞ 以下、図面を参照して本発明の一実施例を説明する。第
１図〜第４図は本発明の一実施例を説明するための図面
であって、第１図は第２図のＡ−Ａ線矢視断面図、第２
図は平面図、第３図は第２図のＢ−Ｂ線矢視断面図であ
る。第４図は２次コイル（従来のカレントトランスの２
次コイルと高周波加熱コイルに相当する）を示し、
（ａ）は平面図、（ｂ）は（ａ）のＡ−Ａ線矢視断面
図、（ｃ）は（ａ）のＢ−Ｂ線矢視断面図、（ｄ）は実
際的な２次コイルの平面図である。<Example> Hereinafter, an example of the present invention will be described with reference to the drawings. 1 to 4 are drawings for explaining one embodiment of the present invention, and FIG. 1 is a sectional view taken along the line AA of FIG.
The drawing is a plan view, and FIG. 3 is a sectional view taken along the line BB of FIG. Figure 4 shows the secondary coil (2 of the conventional current transformer).
Corresponding to the following coil and high frequency heating coil)
(A) is a plan view, (b) is a sectional view taken along the line AA of (a), (c) is a sectional view taken along the line BB of (a), and (d) is a practical secondary. It is a top view of a coil.
本実施例は、円柱の両端面に突起を形成した形状のスタ
ッドピンＷの外周面を加熱する高周波誘導加熱装置であ
る。第１図および第２図に示すように、図示しない駆動
装置によって間歇的に回転駆動される軸32に取り付けら
れたガラスラミネート板またはセラミック製等の絶縁性
のターンテーブル30の上には、４個（３個以上であれば
良い）の銅等の金属製の２次コイル20が固定されてい
る。４個の２次コイル20は軸31を中心として90゜ずつず
れた位置に配置されている。The present embodiment is a high frequency induction heating device for heating the outer peripheral surface of a stud pin W having a shape in which protrusions are formed on both end surfaces of a cylinder. As shown in FIGS. 1 and 2, 4 is placed on an insulating turntable 30 such as a glass laminate plate or a ceramic plate which is attached to a shaft 32 which is intermittently rotated by a driving device (not shown). A number (3 or more) of secondary coils 20 made of metal such as copper are fixed. The four secondary coils 20 are arranged at positions deviated by 90 ° about the axis 31.
第４図に示すように、良導電金属製でほぼ８字形状の２
次コイル20は、ほぼ円形の開口21（第１の開口）と、ス
タッドピンＷの直径より大きい直径を有する円形の開口
22（第２の開口）と、開口21と22とを接続している長方
形状の狭隙23とを備えている。狭隙23には通常第４図
（ｄ）に示すように、テフロン等の絶縁物25を充填して
ある。開口21の周辺部分21aは従来のカレントトランス
の２次コイルに相当し、開口22の周辺部分22aは従来の
高周波加熱コイルに相当する。As shown in FIG.
The secondary coil 20 has a substantially circular opening 21 (first opening) and a circular opening having a diameter larger than the diameter of the stud pin W.
22 (second opening) and a rectangular narrow gap 23 connecting the openings 21 and 22 are provided. The narrow gap 23 is usually filled with an insulator 25 such as Teflon as shown in FIG. 4 (d). The peripheral portion 21a of the opening 21 corresponds to the secondary coil of the conventional current transformer, and the peripheral portion 22a of the opening 22 corresponds to the conventional high frequency heating coil.
第１図および第３図に示すように、２次コイル20の開口
22の下方でターンテーブル30の表面に設けた凹所34に
は、スタッドピンＷを載置するセラミック製等の絶縁性
のワーク載置台31が取り付けられている。ワーク載置台
31には載置されたスタッドピンＷが倒れないようにスタ
ッドピンＷの下部の突起が挿入される凹部31aが穿設さ
れている。As shown in FIGS. 1 and 3, the opening of the secondary coil 20.
An insulative work placement table 31 made of ceramic or the like on which the stud pin W is placed is attached to a recess 34 provided on the surface of the turntable 30 below 22. Work placement table
A recess 31a into which a protrusion at the lower portion of the stud pin W is inserted is formed in the hole 31 so that the mounted stud pin W does not fall.
ターンテーブル30の下方で、４個の２次コイル20の内の
１個の２次コイル20（第２図上で上方の２次コイル20）
の開口21に対向する位置には、１次コイル10が設けられ
ている。１次コイル10は、２次コイル20の開口21の周辺
部分21aの形状に対応するように中央に開口部分10aが有
するように形成され、且つ、前記周辺部分21aに対向し
た位置に配置されている。１次コイル10は、絶縁物13を
介してスパイラル状に多重に巻かれた良導電金属製の導
体11と、導体11の２次コイル20に対向した面以外の面を
覆うように形成されたフェライト製等のコア14とを備え
ている。導体11は中空部分14を有し、この中空部分14に
導体11を冷却するために冷却液が流通される。そして、
１次コイル10は絶縁板15の上に取り付けられている。ま
た、１次コイル10の一端および他端はそれぞれリード線
101および102を介して高周波電源100に接続されてい
る。Below the turntable 30, one secondary coil 20 among the four secondary coils 20 (upper secondary coil 20 in FIG. 2)
A primary coil 10 is provided at a position facing the opening 21 of the. The primary coil 10 is formed such that the opening portion 10a has a center portion corresponding to the shape of the peripheral portion 21a of the opening 21 of the secondary coil 20, and is arranged at a position facing the peripheral portion 21a. There is. The primary coil 10 is formed so as to cover the conductor 11 made of a good conductive metal and wound in multiple layers in a spiral shape with the insulator 13 in between and the surface of the conductor 11 other than the surface facing the secondary coil 20. It has a core 14 made of ferrite or the like. The conductor 11 has a hollow portion 14, through which a cooling liquid is circulated to cool the conductor 11. And
The primary coil 10 is mounted on the insulating plate 15. Also, one end and the other end of the primary coil 10 are lead wires, respectively.
It is connected to the high frequency power supply 100 via 101 and 102.
上記のように、１次コイル10と２次コイル20の開口21の
周辺部分21aとで、平面対向型のカレントトランスを形
成している。As described above, the primary coil 10 and the peripheral portion 21a of the opening 21 of the secondary coil 20 form a plane-opposed current transformer.
次に、本実施例の動作について説明する。Next, the operation of this embodiment will be described.
まず、第２図上で右方に示す２次コイル20の開口22内の
ワーク載置台31の凹所31aにスタッドピンＷの下部の突
起を挿入してスタッドピンＷをワーク載置台31に載置す
る。次いで、ターンテーブル駆動装置33によってターン
テーブル30を矢印Ｃの方向に90゜回転させて後停止させ
る。すると、２次コイル20は第２図上で上方に示す２次
コイル20の位置にくる。このとき、第１図に示すよう
に、２次コイル20の開口21の外周部分21aが１次コイル1
0に対向した位置にある。この状態で高周波電源100から
１次コイル10に高周波電流を所定時間通電すると、第２
図に示すように、２次コイル20の開口21の周辺部分21
a、狭隙23の両側および開口22の周辺部分22aには誘導電
流ｉが流れる。この誘導電流ｉによって、、開口22内に
配置されたスタッドピンＷに誘導電流が流れてスタッド
ピンＷが加熱される。このように、スタッドピンＷを所
定時間加熱した後、１次コイル10への通電を断つ。次い
で、図示しないジャケットから冷却液をスタッドピンＷ
に噴射してスタッドピンＷを冷却後、図示しない駆動装
置によってターンテーブル30を矢印Ｃの方向に90゜回転
させてから停止させる。そして、手作業或いは機械によ
ってスタッドピンＷをワーク載置台31から取り外す。First, the protrusion of the lower part of the stud pin W is inserted into the recess 31a of the work mounting table 31 in the opening 22 of the secondary coil 20 shown on the right side in FIG. 2 to mount the stud pin W on the work mounting table 31. Place. Then, the turntable driving device 33 rotates the turntable 30 by 90 ° in the direction of arrow C and stops it. Then, the secondary coil 20 comes to the position of the secondary coil 20 shown above in FIG. At this time, as shown in FIG. 1, the outer peripheral portion 21a of the opening 21 of the secondary coil 20 is the primary coil 1
It is located at a position facing 0. In this state, when a high frequency current is passed from the high frequency power supply 100 to the primary coil 10 for a predetermined time, the second
As shown in the figure, the peripheral portion 21 of the opening 21 of the secondary coil 20
The induced current i flows through the both sides of the narrow gap 23 and the peripheral portion 22a of the opening 22. The induced current i causes an induced current to flow through the stud pin W arranged in the opening 22 to heat the stud pin W. Thus, after heating the stud pin W for a predetermined time, the power supply to the primary coil 10 is cut off. Then, the cooling liquid is supplied from a jacket (not shown) to the stud pin W.
After the stud pin W is cooled by spraying on the stud pin W, the turntable 30 is rotated by 90 ° in the direction of arrow C by a driving device (not shown) and then stopped. Then, the stud pin W is removed from the work mounting table 31 manually or by a machine.
以下、上記の動作を繰り返すことによって多数のスタッ
ドピンＷを順次自動的に高周波誘導加熱してゆくことが
できる。Hereinafter, by repeating the above operation, a large number of stud pins W can be sequentially and automatically subjected to high frequency induction heating.
なお、本実施例ではターンテーブル30が全体的に絶縁性
であるとしたが、これにこだわるものではなく、２次コ
イル20の周辺その他必要個所のみを絶縁性とし、その他
の部分を導電性とすることもできる。また、開口21の周
辺部分21aには１次コイル10と同様にコアを取り付けた
り、２次コイル20の内部に冷却液を流通して冷却するこ
とも可能である。In the present embodiment, the turntable 30 is assumed to be entirely insulative, but the present invention is not limited to this, and only the periphery of the secondary coil 20 and other necessary parts are insulative, and the other parts are electrically conductive. You can also do it. Further, a core may be attached to the peripheral portion 21a of the opening 21 as in the case of the primary coil 10, or a cooling liquid may be circulated inside the secondary coil 20 for cooling.
＜発明の効果＞ 以上説明したように、本発明の高周波誘導加熱装置は、
２次コイルと、この２次コイルの下方に固定して設けた
１次コイルとを備え、２次コイルに第１および第２の開
口と両開口間を繋ぐ挾隙とを設け、また、１次コイルを
第１の開口の周辺部分の形状に対応するように形成し且
つ前記周辺部分に対応するように配置して１次コイルと
第１の開口の周辺部分とで平面対向型のカレントトラン
スを形成すると共に、第２の開口の周辺部分で加熱コイ
ルを形成し、１次コイルに高周波電流を通電することに
よって第２の開口内に設置したワークを加熱する。<Effects of the Invention> As described above, the high-frequency induction heating device of the present invention is
A secondary coil and a primary coil fixedly provided below the secondary coil are provided, and the secondary coil is provided with first and second openings and a gap connecting both the openings. The secondary coil is formed so as to correspond to the shape of the peripheral portion of the first opening and is arranged so as to correspond to the peripheral portion, and the primary coil and the peripheral portion of the first opening are plane-opposed current transformers. And a heating coil is formed in the peripheral portion of the second opening, and a high-frequency current is passed through the primary coil to heat the work set in the second opening.
従って、本発明の高周波誘導加熱装置は、カレントトラ
ンスを昇降させる必要がないから、構造が簡単で廉価で
ある利点を有する。Therefore, the high-frequency induction heating device of the present invention has the advantage that the structure is simple and inexpensive because it is not necessary to move the current transformer up and down.
第１図〜第４図は本発明の一実施例を説明するための側
面図であって、第１図は第２図のＡ−Ａ線矢視断面図、
第２図は平面図、第３図は第２図のＢ−Ｂ線矢視断面図
である。第４図は２次コイルを示し、（ａ）は平面図、
（ｂ）は（ａ）のＡ−Ａ線矢視断面図、（ｃ）は（ａ）
のＢ−Ｂ線矢視断面図、（ｄ）は実際的な２次コイルの
平面図である。第５図は多量のスタッドピンを順次加熱
する従来の高周波誘導加熱装置の一例の説明図である。 10……１次コイル、20……２次コイル、21、22……開
口、21a、22a……外周部分、23……狭隙、30……ターン
テーブル、Ｗ……スタッドピン。1 to 4 are side views for explaining one embodiment of the present invention, and FIG. 1 is a sectional view taken along the line AA of FIG.
2 is a plan view, and FIG. 3 is a sectional view taken along the line BB of FIG. FIG. 4 shows a secondary coil, (a) is a plan view,
(B) is a sectional view taken along the line AA of (a), and (c) is (a).
3B is a cross-sectional view taken along the line BB of FIG. 3D, and FIG. FIG. 5 is an explanatory diagram of an example of a conventional high frequency induction heating device that sequentially heats a large number of stud pins. 10 …… Primary coil, 20 …… Secondary coil, 21,22 …… Opening, 21a, 22a …… Outer peripheral part, 23 …… Narrow gap, 30 …… Turntable, W …… Stud pin.
Claims (1)
定して設けた１次コイルとを備え、２次コイルに第１お
よび第２の開口と両開口間を繋ぐ挾隙とを設け、また、
１次コイルを第１の開口の周辺部分の形状に対応するよ
うに形成し且つ前記周辺部分に対応するように配置して
１次コイルと第１の開口の周辺部分とで平面対向型のカ
レントトランスを形成すると共に、第２の開口の周辺部
分で加熱コイルを形成し、１次コイルに高周波電流を通
電することによって第２の開口内に設置したワークを加
熱することを特徴とする高周波誘導加熱装置。1. A secondary coil, and a primary coil fixedly provided below the secondary coil. The secondary coil is provided with first and second openings and a gap connecting both openings. Provided,
The primary coil is formed so as to correspond to the shape of the peripheral portion of the first opening and is arranged so as to correspond to the peripheral portion, and the primary coil and the peripheral portion of the first opening have a plane-opposed current. A high frequency induction characterized by forming a transformer and forming a heating coil in the peripheral portion of the second opening, and heating a work set in the second opening by supplying a high frequency current to the primary coil. Heating device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2094857A JPH0719649B2 (en) | 1990-04-09 | 1990-04-09 | High frequency induction heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2094857A JPH0719649B2 (en) | 1990-04-09 | 1990-04-09 | High frequency induction heating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03291890A JPH03291890A (en) | 1991-12-24 |
| JPH0719649B2 true JPH0719649B2 (en) | 1995-03-06 |
Family
ID=14121704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2094857A Expired - Lifetime JPH0719649B2 (en) | 1990-04-09 | 1990-04-09 | High frequency induction heating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0719649B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5309282B2 (en) * | 2008-09-24 | 2013-10-09 | 第一高周波工業株式会社 | Induction heating melting device |
| JP5622862B2 (en) * | 2010-10-28 | 2014-11-12 | 三菱電機株式会社 | Induction heating apparatus and heating system using the same |
-
1990
- 1990-04-09 JP JP2094857A patent/JPH0719649B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03291890A (en) | 1991-12-24 |
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