JPH05182753A - High-frequency heating device - Google Patents
High-frequency heating deviceInfo
- Publication number
- JPH05182753A JPH05182753A JP3360152A JP36015291A JPH05182753A JP H05182753 A JPH05182753 A JP H05182753A JP 3360152 A JP3360152 A JP 3360152A JP 36015291 A JP36015291 A JP 36015291A JP H05182753 A JPH05182753 A JP H05182753A
- Authority
- JP
- Japan
- Prior art keywords
- current
- frequency
- power supply
- coils
- switchgears
- 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
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)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は高周波加熱装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high frequency heating device.
【０００２】[0002]
【従来の技術】以下、図面を参照して従来の技術を説明
する。図２は従来の高周波加熱装置の電気回路図であっ
て、同図に示すように、１つの高周波電源3 から給電さ
れて４個の高周波加熱コイル（以下単に加熱コイルとも
いう) 61〜66によって図示しない４個の被加熱面を加熱
する高周波加熱装置を説明する。2. Description of the Related Art A conventional technique will be described below with reference to the drawings. FIG. 2 is an electric circuit diagram of a conventional high-frequency heating device. As shown in FIG. 2, four high-frequency heating coils (hereinafter also simply referred to as heating coils) 61 to 66 are fed by one high-frequency power source 3. A high-frequency heating device that heats four surfaces to be heated (not shown) will be described.
【０００３】高周波電源3 は、図示しない半導体素子を
高周波電流の発生に使用している電源であって、高周波
電源3 に接続された高周波出力母線1 、2 間には、４対
の給電線11〜14を介してそれぞれ電磁接触器21〜24が並
列に接続されている。The high-frequency power source 3 is a power source using a semiconductor element (not shown) for generating a high-frequency current. Between the high-frequency output buses 1 and 2 connected to the high-frequency power source 3, four pairs of feeder lines 11 are provided. Electromagnetic contactors 21 to 24 are connected in parallel via .about.
【０００４】電磁接触器21〜24の出力側は、それぞれ、
４対（合計８本) の給電線31〜34を介して４対のキャブ
タイヤケーブル41〜44に接続されている。そして、各対
のキャブタイヤケーブル41〜44は、それぞれ、カレント
トランス51〜54を介して加熱コイル61〜64に接続されて
いる。キャブタイヤケーブル41〜44は、加熱コイル61〜
64が、それぞれ、単独に、或いは、他の加熱コイルと同
期して、待機位置と加熱位置の間を移動するので、この
ような移動を容易にするために設けられている。The output sides of the electromagnetic contactors 21 to 24 are respectively
It is connected to four pairs of cabtire cables 41 to 44 through four pairs (eight in total) of power supply lines 31 to 34. The cabtire cables 41 to 44 of each pair are connected to the heating coils 61 to 64 via current transformers 51 to 54, respectively. The cabtyre cables 41-44 are heating coils 61-
64 are provided for facilitating such movement, as each moves between the standby position and the heating position, either alone or in synchronization with another heating coil.
【０００５】なお、4 〜7 は高周波出力母線1 、2 間に
接続されたコンデンサであって、高周波電源3 内の前記
半導体素子と共に、高周波電流の発生に寄与している。
また、8 は、給電線31〜34のそれぞれに設けた電流変成
器である。Reference numerals 4 to 7 are capacitors connected between the high frequency output buses 1 and 2 and contribute to the generation of a high frequency current together with the semiconductor element in the high frequency power supply 3.
Further, 8 is a current transformer provided in each of the power supply lines 31 to 34.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、このよ
うな従来の高周波加熱装置には、以下に述べる問題があ
る。即ち、（１) 電磁接触器21〜24は、コンデンサ4 〜
7 の後段に接続されている。故に、電磁接触器21〜24に
は、高周波電源3 の出力電流と、コンデンサ4 〜7 の放
電電流との両方が通過するので、電流容量の大きいもの
を使用しなければならない。この結果、高周波加熱装置
の容積も大きくなる。（２) 電磁接触器21〜24からそれ
ぞれのカレントトランス51〜54への給電には、各カレン
トトランスごとに２本の給電線を必要とする。However, such a conventional high-frequency heating device has the following problems. That is, (1) electromagnetic contactors 21 to 24 are capacitors 4 to
It is connected to the latter part of 7. Therefore, both the output current of the high-frequency power source 3 and the discharge current of the capacitors 4 to 7 pass through the electromagnetic contactors 21 to 24, so that a large current capacity must be used. As a result, the volume of the high frequency heating device also increases. (2) Two power supply lines are required for each current transformer to supply power from the electromagnetic contactors 21-24 to the respective current transformers 51-54.
【０００７】本発明は上記事情に鑑みて創案されたもの
であって、各加熱コイルへ給電する開閉装置の電流容量
が小さくて良く、且つ、開閉装置からカレントトランス
への給電線の数を減少させることができる高周波加熱装
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 the current capacity of the switchgear for supplying power to each heating coil may be small, and the number of power supply lines from the switchgear to the current transformer can be reduced. It is an object of the present invention to provide a high-frequency heating device that can be used.
【０００８】[0008]
【課題を解決するための手段】上記問題を解決するため
に、本発明の高周波加熱装置は、１つの高周波電源、こ
の高周波電源の出力側に並列に接続された複数の２極の
開閉装置、各開閉装置と各開閉装置の出力側に接続され
た１対のキャブタイヤケーブルとを介して給電されるカ
レントトランス、および、各カレントトランスの出力側
に接続された加熱コイルを備えた高周波加熱装置におい
て、前記各開閉装置の出力端間に接続されたコンデンサ
と、各コンデンサの一端に一方の各キャブタイヤケーブ
ルをそれぞれ接続する複数の給電線と、全てのコンデン
サの他端に全ての他方のキャブタイヤケーブルを接続す
る１つの給電線とを備えている。In order to solve the above problems, a high-frequency heating apparatus of the present invention comprises one high-frequency power source, a plurality of two-pole switchgear connected in parallel to the output side of the high-frequency power source, A high frequency heating device including a current transformer that is supplied with power via each switchgear and a pair of cabtire cables connected to the output side of each switchgear, and a heating coil connected to the output side of each current transformer In the above, a capacitor connected between the output terminals of each switchgear, a plurality of power supply lines respectively connecting one of the cabtyre cables to one end of each capacitor, and all the other cabs to the other end of all capacitors. One power supply line for connecting the tire cable.
【０００９】[0009]
【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。図１は本実施例の電気回路図である。なお、従
来の技術で説明したものと同等のものには同一の符号を
付して説明する。なお、本実施例の高周波電源3 、高周
波出力母線1 、2 、電磁接触器21〜24、キャブタイヤケ
ーブル41〜44、カレントトランス51〜54、および加熱コ
イル61〜64は、図２で説明したものと同じであるので、
以下には図２と異なっている部分のみを説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an electric circuit diagram of this embodiment. In addition, the same components as those described in the related art will be described with the same reference numerals. The high frequency power supply 3, high frequency output busbars 1 and 2, electromagnetic contactors 21 to 24, cabtyre cables 41 to 44, current transformers 51 to 54, and heating coils 61 to 64 of this embodiment have been described with reference to FIG. Because it is the same as the one
Only the parts different from FIG. 2 will be described below.
【００１０】同図に示すように、本実施例の高周波加熱
装置は、従来の高周波加熱装置と比べて、コンデンサの
接続位置、および電磁接触器21〜24とカレントトランス
51〜54との間の接続方法が異なっている。即ち、コンデ
ンサ91〜94は、各電磁接触器21〜24の出力端間にそれぞ
れ接続されている。そして、コンデンサ91の一端と、一
方のキャブタイヤケーブル41とが給電線81によって接続
されている。As shown in the figure, the high-frequency heating apparatus of this embodiment is different from the conventional high-frequency heating apparatus in the connection position of the capacitor, the electromagnetic contactors 21 to 24 and the current transformer.
The connection method between 51 and 54 is different. That is, the capacitors 91 to 94 are connected between the output terminals of the electromagnetic contactors 21 to 24, respectively. Then, one end of the capacitor 91 and one cabtire cable 41 are connected by a power supply line 81.
【００１１】同様に、、コンデンサ92の一端と、一方の
キャブタイヤケーブル42とは給電線82によって、コンデ
ンサ93の一端と、一方のキャブタイヤケーブル43とは給
電線83によって、また、コンデンサ94の一端と、一方の
キャブタイヤケーブル44とは給電線84によって接続され
ている。そして、全てのコンデンサ91〜94の他端に、全
ての他方のキャブタイヤケーブル41〜44が、１つの給電
線80によって接続されている。なお、50a および50b
は、カレントトランス51〜54のそれぞれの１次コイルお
よび２次コイルである。Similarly, one end of the capacitor 92 and one of the cabtire cables 42 are connected by the power supply line 82, one end of the capacitor 93 and one of the cabtire cables 43 are connected by the power supply line 83, and one of the capacitors 94 is connected. One end and one cabtire cable 44 are connected by a power supply line 84. Then, all the other cabtyre cables 41 to 44 are connected to the other ends of all the capacitors 91 to 94 by one power supply line 80. Note that 50a and 50b
Are primary coils and secondary coils of the current transformers 51 to 54, respectively.
【００１２】次に、本実施例の高周波加熱装置の動作を
説明する。全ての電磁接触器21〜24をオンにした状態
で、高周波電源3 を動作させて高周波電流を発生させ
る。すると、高周波電流は、高周波出力母線2 、電磁接
触器21の一方の極、給電線81、一方のキャブタイヤケー
ブル41を経てカレントトランス51の１次コイル50a に入
り、他方のキャブタイヤケーブル41、給電線80、電磁接
触器21の他方の極を経て高周波出力母線1 に戻る。Next, the operation of the high frequency heating apparatus of this embodiment will be described. With all the electromagnetic contactors 21 to 24 turned on, the high frequency power supply 3 is operated to generate a high frequency current. Then, the high-frequency current passes through the high-frequency output bus bar 2, one pole of the electromagnetic contactor 21, the power supply line 81, the one cabtire cable 41, the primary coil 50a of the current transformer 51, and the other cabtire cable 41, It returns to the high frequency output bus bar 1 via the power supply line 80 and the other pole of the electromagnetic contactor 21.
【００１３】カレントトランス51の２次コイル50b に発
生した高周波電流は加熱コイル61に供給される。加熱コ
イル62〜64に対しても加熱コイル61で説明したのと同様
に高周波電流が供給される。そして、全てのカレントト
ランス51〜54の１次コイル50a に供給される高周波電流
は、１つの給電線80を経由して高周波出力母線1 に戻
る。The high frequency current generated in the secondary coil 50b of the current transformer 51 is supplied to the heating coil 61. The high frequency current is supplied to the heating coils 62 to 64 as in the case of the heating coil 61. Then, the high-frequency current supplied to the primary coils 50a of all the current transformers 51 to 54 returns to the high-frequency output bus bar 1 via one power supply line 80.
【００１４】なお、従来の高周波加熱装置では、例え
ば、加熱コイル64を動作させない場合には、電磁接触器
24をオフにしておくのは勿論、コンデンサ4 〜7 の容量
を３個の加熱コイル61〜63の加熱に適した容量に調節し
直す必要があった。しかし、本実施例の高周波加熱装置
においては、各電磁接触器21〜24の出力端にそれぞれコ
ンデンサ91〜94が接続されているので、使用しない加熱
コイルの電磁接触器をオフとしておくだけよい。In the conventional high-frequency heating device, for example, when the heating coil 64 is not operated, the electromagnetic contactor is used.
Of course, it was necessary to turn off 24 and readjust the capacities of the capacitors 4 to 7 to the capacities suitable for heating the three heating coils 61 to 63. However, in the high-frequency heating apparatus of this embodiment, the capacitors 91 to 94 are connected to the output terminals of the electromagnetic contactors 21 to 24, respectively, so that the electromagnetic contactors of the heating coils not used may be turned off.
【００１５】[0015]
【発明の効果】以上説明したように、本発明の高周波加
熱装置は、１つの高周波電源、この高周波電源の出力側
に並列に接続された複数の２極の開閉装置、各開閉装置
と各開閉装置の出力側に接続された１対のキャブタイヤ
ケーブルとを介して給電されるカレントトランス、およ
び、各カレントトランスの出力側に接続された加熱コイ
ルを備えた高周波加熱装置において、前記各開閉装置の
出力端間に接続されたコンデンサと、各コンデンサの一
端に一方の各キャブタイヤケーブルをそれぞれ接続する
複数の給電線と、全てのコンデンサの他端に全ての他方
のキャブタイヤケーブルを接続する１つの給電線とを備
えている。As described above, the high frequency heating apparatus of the present invention includes one high frequency power source, a plurality of two-pole switchgear connected in parallel to the output side of the high frequency power source, each switchgear and each switchgear. A high frequency heating device including a current transformer that is supplied with power via a pair of cabtire cables connected to the output side of the device, and a heating coil connected to the output side of each current transformer Connected between the output ends of each of the capacitors, a plurality of power supply lines connecting one of the cabtire cables to one end of each capacitor, and all the other cabtire cables to the other ends of all capacitors 1 And two power supply lines.
【００１６】従って、本発明の高周波加熱装置は、各加
熱コイルへ給電する開閉装置にコンデンサの放電電流が
流れないので、開閉装置の電流容量が小さくて良く、し
かも、開閉装置からカレントトランスへの給電線の数を
減少させることができる利点を有する。また、使用しな
い加熱コイルがある場合には、単にその加熱コイルに給
電する開閉装置をオフにしておくだけで良く、コンデン
サの容量を調節する必要がない利点をも有する。Therefore, in the high-frequency heating device of the present invention, since the discharge current of the capacitor does not flow in the switch device that supplies power to each heating coil, the current capacity of the switch device can be small, and moreover, the switch device can be connected to the current transformer. This has the advantage that the number of power supply lines can be reduced. In addition, when there is a heating coil that is not used, it is sufficient to simply turn off the switchgear that supplies power to the heating coil, and there is also an advantage that it is not necessary to adjust the capacity of the capacitor.
【図１】本発明の一実施例の電気回路図である。FIG. 1 is an electric circuit diagram of an embodiment of the present invention.
【図２】従来の高周波加熱装置の電気回路図である。FIG. 2 is an electric circuit diagram of a conventional high-frequency heating device.
3 高周波電源 21〜24 電磁接触器 41〜44 キャブタイヤケーブル 51〜54 カレントトランス 61〜64 加熱コイル 80〜84 給電線 91〜94 コンデンサ 3 High-frequency power supply 21-24 Magnetic contactor 41-44 Cabtyre cable 51-54 Current transformer 61-64 Heating coil 80-84 Power supply line 91-94 Capacitor
Claims (1)
力側に並列に接続された複数の２極の開閉装置、各開閉
装置と各開閉装置の出力側に接続された１対のキャブタ
イヤケーブルとを介して給電されるカレントトランス、
および、各カレントトランスの出力側に接続された加熱
コイルを備えた高周波加熱装置において、前記各開閉装
置の出力端間に接続されたコンデンサと、各コンデンサ
の一端に一方の各キャブタイヤケーブルをそれぞれ接続
する複数の給電線と、全てのコンデンサの他端に全ての
他方のキャブタイヤケーブルを接続する１つの給電線と
を備えたことを特徴とする高周波加熱装置。1. A high-frequency power source, a plurality of two-pole switchgear connected in parallel to the output side of the high-frequency power source, and a pair of cabtire cables connected to each switchgear and the output side of each switchgear. A current transformer, which is fed via
And, in a high-frequency heating device provided with a heating coil connected to the output side of each current transformer, a capacitor connected between the output ends of the switchgear, and one of the cabtire cables at one end of each capacitor, respectively. A high-frequency heating device comprising: a plurality of power supply lines to be connected; and one power supply line that connects all the other cabtire cables to the other ends of all the capacitors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3360152A JPH0810623B2 (en) | 1991-12-28 | 1991-12-28 | High frequency heating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3360152A JPH0810623B2 (en) | 1991-12-28 | 1991-12-28 | High frequency heating equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05182753A true JPH05182753A (en) | 1993-07-23 |
| JPH0810623B2 JPH0810623B2 (en) | 1996-01-31 |
Family
ID=18468132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3360152A Expired - Lifetime JPH0810623B2 (en) | 1991-12-28 | 1991-12-28 | High frequency heating equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0810623B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015076141A (en) * | 2013-10-04 | 2015-04-20 | 高周波熱錬株式会社 | Induction heating system and power supply method |
-
1991
- 1991-12-28 JP JP3360152A patent/JPH0810623B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015076141A (en) * | 2013-10-04 | 2015-04-20 | 高周波熱錬株式会社 | Induction heating system and power supply method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0810623B2 (en) | 1996-01-31 |
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