JPH0722875Y2 - Induction heater - Google Patents
Induction heaterInfo
- Publication number
- JPH0722875Y2 JPH0722875Y2 JP1988129585U JP12958588U JPH0722875Y2 JP H0722875 Y2 JPH0722875 Y2 JP H0722875Y2 JP 1988129585 U JP1988129585 U JP 1988129585U JP 12958588 U JP12958588 U JP 12958588U JP H0722875 Y2 JPH0722875 Y2 JP H0722875Y2
- Authority
- JP
- Japan
- Prior art keywords
- induction heater
- core member
- heated
- container
- work 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
Landscapes
- General Induction Heating (AREA)
Description
【考案の詳細な説明】 ［産業上の利用分野］ 本考案は、誘導加熱器に関し、詳しくは底部が平面でな
い被加熱容器を加熱する誘導加熱器に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to an induction heater, and more particularly to an induction heater for heating a heated container whose bottom is not flat.
［従来の技術］ 誘導加熱とは交流磁界によって誘導性の物体中に生じる
渦電流損またはヒステリシス損によって発生する熱によ
り加熱する方式である。この誘導加熱を利用したものに
誘導加熱器がある。この誘導加熱器は、被加熱体を直接
的に誘導加熱するものと、間接的に誘導加熱するものが
あり、前者の例として、中華鍋とこれを加熱するワーク
コイルを設けた誘導加熱器がある。[Prior Art] Induction heating is a method of heating by heat generated by eddy current loss or hysteresis loss generated in an inductive object by an alternating magnetic field. There is an induction heater that utilizes this induction heating. There are two types of induction heaters that directly and indirectly heat the object to be heated.As an example of the former, an induction heater equipped with a wok and a work coil for heating it is used. is there.
［考案が解決しようとする課題］ このような、底が非平面の中華鍋を効率良く、加熱する
方法には、誘導加熱器の方で、検出回路を設け、非平面
底の鍋の時には、出力を停止する等の方法をとってい
た。しかしながら、非平面底の場合には、効率良く、加
熱する方法は未だに提案されていない。[Problems to be solved by the invention] In order to efficiently heat a wok with a non-planar bottom like this, an induction heater is provided with a detection circuit, and when a pan with a non-flat bottom is used, I took measures such as stopping the output. However, in the case of a non-planar bottom, an efficient heating method has not been proposed yet.
そこで、本考案の技術課題は、中華鍋等の非平面の底面
を有する被加熱容器を効率良く加熱することができる誘
導加熱器を提供することにある。Then, the technical subject of this invention is providing the induction heater which can heat efficiently the to-be-heated container which has a non-planar bottom face, such as a wok.
［課題を解決するための手段］ 本考案によれば、交番磁束を発生させるワークコイル
と，前記交番磁束を導くコア部材とを備え，被加熱容器
を誘導加熱により加熱する誘導加熱器において，前記コ
ア部材は，前記被加熱容器に前記交番磁束を導くととも
に，前記コア部材の端部は，前記被加熱容器の底面に対
向して配置され，且つ前記被加熱容器の底面形状に実質
的に対応した形状面の仮想面に沿って広がっていること
を特徴とする誘導加熱器が得られる。[Means for Solving the Problems] According to the present invention, an induction heater for heating a container to be heated by induction heating, comprising: a work coil for generating an alternating magnetic flux; and a core member for guiding the alternating magnetic flux, The core member guides the alternating magnetic flux to the heated container, and the end portion of the core member is disposed so as to face the bottom surface of the heated container, and substantially corresponds to the bottom shape of the heated container. An induction heater is obtained which is characterized in that it extends along an imaginary plane of the shaped surface.
また、本考案によれば、前記の誘導加熱器において，
（イ）前記ワークコイルは一本の螺旋状であり，前記コ
ア部材は，前記ワークコイル間に設けられた複数のコア
片からなること，（ロ）前記コア部材の端部は，前記ワ
ークコイルによって一つの磁極を形成していること，及
び（ハ）前記コア部材の両端部は互いに対向しているこ
と，の内のいずれかを特徴とする誘導加熱器が得られ
る。According to the present invention, in the induction heater,
(A) The work coil has a single spiral shape, and the core member is composed of a plurality of core pieces provided between the work coils. (B) An end portion of the core member has the work coil. To form one magnetic pole, and (c) both ends of the core member face each other, thereby obtaining an induction heater.
ここで、本考案の誘導加熱器においては、前記コア部材
の端部は前記被加熱容器の底面の外側で該被加熱容器の
加熱底面に沿う形状に形成され、前記コア部材の端部か
ら前記被加熱容器の底面の距離を夫々実質的に等しくす
ることが好ましい。Here, in the induction heater of the present invention, the end portion of the core member is formed outside the bottom surface of the heated container along the heating bottom surface of the heated container, and the end portion of the core member is It is preferable that the bottoms of the containers to be heated have substantially the same distance.
更に、本考案の誘導加熱器においては、前記コア部材は
前記ワークコイル間に設けられた複数のコア片よりな
り、このコア片は、前記被加熱容器の底面に応じて位置
調節のできる位置調節用部材を有する事が好ましい。Further, in the induction heater of the present invention, the core member is composed of a plurality of core pieces provided between the work coils, and the core pieces are positionally adjustable according to the bottom surface of the heated container. It is preferable to have a member for use.
また、本考案の誘導加熱器においては、前記コア部材の
上に前記被加熱容器を載置するための前記被加熱容器の
底面形状に対応した形状を有する耐熱セラミックスより
なるプレートを有することが好ましい。Further, in the induction heater of the present invention, it is preferable to have a plate made of heat-resistant ceramics having a shape corresponding to the bottom surface shape of the heated container for mounting the heated container on the core member. .
［作用］ 本考案の作用について説明する。[Operation] The operation of the present invention will be described.
通常、鍋を効率よく加熱するには、均一な交番磁束を通
して、均一に渦電流を発生させなくてはならない。均一
に渦電流を発生させるには、ワークコイルと被加熱容器
の底面との距離を均一にしなければならない。本考案の
誘導加熱器においては、ワークコイルと底面の距離を均
一にする代わりにワークコイルと被加熱容器の底面との
間にコア部材を介在させて交番磁束を導くので、従来に
於てワークコイルの交番磁束が容易に到達しなかった底
面の上部に近ずけて均一に渦電流を発生させて、被加熱
容器の底面を効率よく加熱する。Usually, in order to efficiently heat the pot, it is necessary to generate an eddy current uniformly through a uniform alternating magnetic flux. In order to generate the eddy current uniformly, the distance between the work coil and the bottom surface of the heated container must be uniform. In the induction heater of the present invention, instead of equalizing the distance between the work coil and the bottom surface, an alternating magnetic flux is introduced by interposing a core member between the work coil and the bottom surface of the container to be heated. The eddy current is uniformly generated by approaching the upper part of the bottom surface where the alternating magnetic flux of the coil did not easily reach, and the bottom surface of the heated container is efficiently heated.
［実施例］ 本考案の実施例を図面を参照して説明する。[Embodiment] An embodiment of the present invention will be described with reference to the drawings.
第１図（ａ）は本考案の実施例１に係る誘導加熱器の構
成を示す断面図である。第１図（ｂ）は本考案の実施例
１に係る誘導加熱器のセラミックプレートを取除いたと
きの平面図である。この図において、誘導加熱器は、丸
底の被加熱容器５を載せる耐熱セラミックプレート３
と、このセラミックプレート３を透過して被加熱容器５
に交番磁束を与えて渦電流を発生させる螺旋状のワーク
コイル１と、このワークコイル１の隙間に設けられた半
円弧状のフェライトコア２と、このフェライトコア２を
支持し高さ調節を行うなう非金属及び非磁性材料よりな
る高さ調節ねじ４とによって構成される。第１図のよう
な、丸底の被加熱容器５を載せるには、外輪のフェライ
トコア2aは、中央部より高く調節して、底5aとフェライ
トコア２とを略均等な距離とする。フェライトコア２の
各々の上端面は仮想面17を形成する。FIG. 1 (a) is a sectional view showing the structure of an induction heater according to Embodiment 1 of the present invention. FIG. 1 (b) is a plan view of the induction heater according to the first embodiment of the present invention when the ceramic plate is removed. In this figure, the induction heater is a heat-resistant ceramic plate 3 on which a round-bottom heated container 5 is placed.
And the container 5 to be heated which penetrates through the ceramic plate 3.
A spiral work coil 1 for generating an eddy current by applying an alternating magnetic flux to the, a semi-circular ferrite core 2 provided in a gap between the work coils 1, and a height adjustment by supporting the ferrite core 2 The height adjusting screw 4 is made of a non-metal and non-magnetic material. In order to mount the round-bottom heated container 5 as shown in FIG. 1, the ferrite core 2a of the outer ring is adjusted higher than the central portion so that the bottom 5a and the ferrite core 2 have a substantially equal distance. The upper end surface of each of the ferrite cores 2 forms a virtual surface 17.
第２図は、本考案の実施例２に係る誘導加熱器の構成を
示す断面図である。FIG. 2 is a sectional view showing the structure of the induction heater according to the second embodiment of the present invention.
この図において、誘導加熱器は、平底の被加熱容器６を
載せる平板耐熱セラミックプレート３′を、用いるフェ
ライトコア２の夫々の高さを等しく調節して、底6aとフ
ェライトコア２の端面の仮想面18とを略均等な距離にす
る。In this figure, the induction heater is a virtual heat-resistant ceramic plate 3'on which a flat-bottomed heated container 6 is placed, and the heights of the ferrite cores 2 to be used are adjusted to be equal to each other so that the bottoms 6a and the end faces of the ferrite core 2 are virtual. Make the surface 18 and the surface 18 substantially even.
第３図は、本考案の実施例３に係る誘導加熱器の構成を
示す部分断面図である。この図において、誘導加熱器
は、丸底の被加熱容器５を載せる耐熱セラミックプレー
ト３と被加熱容器の底5aの形状と同形状の端面7aを有す
るフェライトコア８と、このフェライトコア８に巻かれ
たワークコイル７とによって、構成されている。前述の
実施例と同様に底とフェライトコア８とを略均等な距離
とすることが出来る。FIG. 3 is a partial cross-sectional view showing the structure of the induction heater according to the third embodiment of the present invention. In this figure, an induction heater comprises a heat-resistant ceramic plate 3 on which a round-bottom heated container 5 is placed, a ferrite core 8 having an end surface 7a having the same shape as the bottom 5a of the heated container, and a ferrite core 8 wound around the ferrite core 8. It is constituted by the work coil 7 which is cut. Similar to the above-described embodiment, the bottom and the ferrite core 8 can be provided with a substantially equal distance.
第４図は、本考案の実施例４に係る誘導加熱器の構成を
示す断面図である。この図において、誘導加熱器は、丸
底の被加熱容器12を載せる耐熱セラミックプレート11と
被加熱容器の底11aの形状と同形状の端面10aを有するフ
ェライトコア10と、このフェライト10の底に配置された
螺旋状のワークコイル９とによって、構成されている。
前述の実施例と同様に底10aとフェライトコア10の端面1
0aとを略均等な距離とすることが出来る。FIG. 4 is a sectional view showing the structure of an induction heater according to Embodiment 4 of the present invention. In this figure, the induction heater is a heat-resistant ceramic plate 11 on which a heated container 12 having a round bottom is placed, a ferrite core 10 having an end surface 10a having the same shape as the shape of the bottom 11a of the heated container, and the bottom of this ferrite 10. It is constituted by the spiral work coil 9 arranged.
Similar to the above embodiment, the bottom 10a and the end surface 1 of the ferrite core 10
It is possible to make 0a and the distance substantially equal.
第５図は本考案の実施例５に係る誘導加熱器の構成を示
す部分断面図である。この図において、誘導加熱器は、
丸底の被加熱容器15の底15aの形状に合せた端面14aとこ
の端面14aの底15aの最下部に対応する部分にギヤツプを
有するフェライトコア14と、このフェライトコア14の底
に巻かれたワークコイル13とによって構成されている。
前述の実施例と同様に底15aとフェライトコア14との距
離を略均等な距離とすることが出来る。FIG. 5 is a partial sectional view showing the structure of the induction heater according to the fifth embodiment of the present invention. In this figure, the induction heater is
An end surface 14a conforming to the shape of the bottom 15a of the heated container 15 having a round bottom, a ferrite core 14 having a gear cup in a portion corresponding to the lowermost part of the bottom 15a of the end surface 14a, and the ferrite core 14 wound around the bottom of the ferrite core 14. And the work coil 13.
Similar to the above-described embodiment, the distance between the bottom 15a and the ferrite core 14 can be made substantially equal.
［考案の効果］ 以上説明したように本考案によれば、被加熱容器の底面
を加熱する誘導加熱器において、コア部材の位置を被加
熱容器の底面形状に合せることにより、高効率の誘導加
熱器を得ることができる。[Advantages of the Invention] As described above, according to the present invention, in an induction heater that heats the bottom surface of a heated container, by adjusting the position of the core member to the shape of the bottom surface of the heated container, highly efficient induction heating is achieved. You can get a vessel.
第１図（ａ）は本考案の実施例１に係る誘導加熱器の構
成を示す断面図、第１図（ｂ）は第１図（ａ）の誘導加
熱器のワークコイル及びフェライトコアを示す平面図、
第２図は本考案の実施例２に係る誘導加熱器の構成を示
す断面図、第３図は本考案の実施例３に係る誘導加熱器
の構成を示す部分断面図、第４図は本考案の実施例４に
係る誘導加熱器の構成を示す断面図、第５図は本考案の
実施例５に係る誘導加熱器の構成を示す部分断面図であ
る。 図中、1,7,9はワークコイル、2,8,10,14はフェライトコ
ア、3,3-は耐熱性セラミックプレート、４は高さ調節ね
じ、5,12,15は中華鍋又は丸底鍋、６は平面底の鍋、17,
18は仮想面である。1 (a) is a sectional view showing the structure of an induction heater according to Embodiment 1 of the present invention, and FIG. 1 (b) shows a work coil and a ferrite core of the induction heater of FIG. 1 (a). Plan view,
2 is a sectional view showing the structure of an induction heater according to a second embodiment of the present invention, FIG. 3 is a partial sectional view showing the structure of an induction heater according to a third embodiment of the present invention, and FIG. 4 is a sectional view showing the structure of an induction heater according to a fourth embodiment of the invention, and FIG. 5 is a partial sectional view showing the structure of an induction heater according to the fifth embodiment of the invention. In the figure, 1,7,9 are work coils, 2,8,10,14 are ferrite cores, 3,3 - are heat-resistant ceramic plates, 4 are height adjusting screws, and 5,12,15 are woks or rounds. Bottom pot, 6 is a flat bottom pot, 17,
18 is a virtual surface.
───────────────────────────────────────────────────── フロントページの続き (72)考案者 西野 寿雄 宮城県仙台市太子堂21番１号 株式会社ト ーキン内 (72)考案者 渡邉 壽夫 宮城県仙台市中山７丁目１番48―301号 (72)考案者 皆川 恒彦 宮城県仙台市桜が丘２丁目173番―904号 (72)考案者 山口 善吉 宮城県仙台市中山５丁目17番30号 (56)参考文献 特開 昭59−205183（ＪＰ，Ａ) 実開 昭53−61843（ＪＰ，Ｕ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Toshio Nishino 21-1 Taikodo, Sendai-shi, Miyagi Prefecture Tokin Co., Ltd. (72) Creator Toshio Watanabe 7-48-301 Nakayama, Sendai City, Miyagi Prefecture (72) ) Tsunehiko Minagawa 2-173-904 Sakuragaoka, Sendai City, Miyagi Prefecture (72) Yoshikichi Yamaguchi 5-17-30 Nakayama, Sendai City, Miyagi Prefecture (56) References JP-A-59-205183 (JP, A) ) Actual development Sho 53-61843 (JP, U)
Claims (4)
記交番磁束を導くコア部材とを備え，被加熱容器を誘導
加熱により加熱する誘導加熱器において， 前記コア部材は，前記被加熱容器に前記交番磁束を導く
とともに， 前記コア部材の端部は，前記被加熱容器の底面に対向し
て配置され，且つ前記被加熱容器の底面形状に実質的に
対応した形状面の仮想面に沿って広がっていることを特
徴とする誘導加熱器。1. An induction heater comprising a work coil for generating an alternating magnetic flux and a core member for guiding the alternating magnetic flux, and heating the container to be heated by induction heating, wherein the core member is provided in the container to be heated. While guiding the alternating magnetic flux, the end portion of the core member is arranged to face the bottom surface of the heated container and spreads along an imaginary plane of a shape surface substantially corresponding to the bottom shape of the heated container. Induction heater characterized in that.
ワークコイルは一本の螺旋状であり，前記コア部材は，
前記ワークコイル間に設けられた複数のコア片からなる
ことを特徴とする誘導加熱器。2. The induction heater according to claim 1, wherein the work coil has a single spiral shape, and the core member comprises
An induction heater comprising a plurality of core pieces provided between the work coils.
コア部材の端部は，前記ワークコイルによって一つの磁
極を形成していることを特徴とする誘導加熱器。3. The induction heater according to claim 1, wherein an end of the core member forms one magnetic pole by the work coil.
コア部材の両端部は互いに対向していることを特徴とす
る誘導加熱器。4. The induction heater according to claim 1, wherein both ends of the core member are opposed to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988129585U JPH0722875Y2 (en) | 1988-10-04 | 1988-10-04 | Induction heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988129585U JPH0722875Y2 (en) | 1988-10-04 | 1988-10-04 | Induction heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0250997U JPH0250997U (en) | 1990-04-10 |
| JPH0722875Y2 true JPH0722875Y2 (en) | 1995-05-24 |
Family
ID=31383997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988129585U Expired - Lifetime JPH0722875Y2 (en) | 1988-10-04 | 1988-10-04 | Induction heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0722875Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4555838B2 (en) * | 2007-03-01 | 2010-10-06 | 日立アプライアンス株式会社 | Induction heating device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5361843U (en) * | 1976-10-27 | 1978-05-25 | ||
| JPH0237075B2 (en) * | 1983-05-09 | 1990-08-22 | Sumitomo Heavy Industries | DENJUDOKANETSUSOCHI |
-
1988
- 1988-10-04 JP JP1988129585U patent/JPH0722875Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0250997U (en) | 1990-04-10 |
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