JP2017147065A - Induction heating coil - Google Patents

Induction heating coil Download PDF

Info

Publication number
JP2017147065A
JP2017147065A JP2016026708A JP2016026708A JP2017147065A JP 2017147065 A JP2017147065 A JP 2017147065A JP 2016026708 A JP2016026708 A JP 2016026708A JP 2016026708 A JP2016026708 A JP 2016026708A JP 2017147065 A JP2017147065 A JP 2017147065A
Authority
JP
Japan
Prior art keywords
plate
conductor
induction heating
heating coil
induction
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
Application number
JP2016026708A
Other languages
Japanese (ja)
Other versions
JP2017147065A5 (en
JP6789638B2 (en
Inventor
田中　祐二
Yuji Tanaka
祐二 田中
貴文 林
Takafumi Hayashi
貴文 林
和夫 北森
Kazuo KITAMORI
和夫 北森
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
G M Eng Supplies Inc
G M Engineering Supplies Inc
Aisin Corp
Original Assignee
G M Eng Supplies Inc
G M Engineering Supplies Inc
Aisin Seiki Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by G M Eng Supplies Inc, G M Engineering Supplies Inc, Aisin Seiki Co Ltd filed Critical G M Eng Supplies Inc
Priority to JP2016026708A priority Critical patent/JP6789638B2/en
Priority to PCT/JP2017/003694 priority patent/WO2017141713A1/en
Publication of JP2017147065A publication Critical patent/JP2017147065A/en
Publication of JP2017147065A5 publication Critical patent/JP2017147065A5/ja
Application granted granted Critical
Publication of JP6789638B2 publication Critical patent/JP6789638B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/36—Coil arrangements
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/36—Coil arrangements
    • H05B6/44—Coil arrangements having more than one coil or coil segment

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Induction Heating (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide an induction heating coil capable of performing uniform heating while suppressing distortion during heat processing on a plate-like member.SOLUTION: An induction heating coil includes a first conductor 11 in which a plate-like member 1 to be subjected to a heat treatment is placed, and which heats the plate-like member 1 by induction current, and a second conductor 12 having insulating interval holding members 13 which are arranged between the plate-like member 1 and the first conductor 11 and are in contact with at least one surface of the plate-like member 1 and in which induction current is made to flow by magnetic field occurring in the first conductor 11, the induction current causing induction current to further occur in the plate-like member 1, and the plate-like member being supported via the interval holding member 13 by the second conductor 12.SELECTED DRAWING: Figure 1

Description

本発明は、熱処理を行う板状部材を加熱する誘導加熱コイルに関する。   The present invention relates to an induction heating coil for heating a plate-like member to be heat-treated.

金属板等の板状部材は、誘導加熱コイルにより加熱して加工や表面処理を行うことがある。誘導加熱コイルの内部に配置された板状部材は、誘導加熱コイルに生じる磁場によって発生する誘導電流によって加熱される。板状部材においては誘導加熱コイルとの距離が近い部位ほど磁束の影響を受け易く誘導電流が高くなる。そのため、誘導加熱コイルとの距離が短い部位と長い部位とが混在する板状部材に対しては均一な加熱を行うことができない。   A plate-like member such as a metal plate is sometimes heated and processed by an induction heating coil. The plate-like member disposed inside the induction heating coil is heated by an induction current generated by a magnetic field generated in the induction heating coil. In a plate-like member, the portion closer to the induction heating coil is more susceptible to magnetic flux and the induced current is higher. Therefore, uniform heating cannot be performed on a plate-like member in which a portion having a short distance from the induction heating coil and a portion having a long distance are mixed.

そこで、特許文献１に記載の誘導加熱装置では、金属板を誘導加熱するコイルとして１次コイルと、１次コイルと金属板との間に配置される２次コイルとを備えている。２次コイルは１次コイルの磁場により誘導電流が発生する。これにより、金属板は１次コイルに加えて２次コイルでも加熱されるようになり、金属板において面方向の温度差が軽減されるため、金属板に対して均一な加熱を行うことができる。   Therefore, the induction heating device described in Patent Document 1 includes a primary coil and a secondary coil disposed between the primary coil and the metal plate as a coil for induction heating the metal plate. In the secondary coil, an induced current is generated by the magnetic field of the primary coil. As a result, the metal plate is heated by the secondary coil in addition to the primary coil, and the temperature difference in the surface direction of the metal plate is reduced, so that the metal plate can be uniformly heated. .

特開２００７−１２２９２４号公報JP 2007-122924 A

特許文献１の技術では、２次コイルの誘導電流は１次コイルの磁場によって発生する電流であるため、１次コイルを流れる電流よりも小さい。このため、金属板に対して２次コリルの加熱効率を高めるには、２次コイルと金属板とを近づけて配置することが好ましい。しかしながら、金属板は通常クランプ等によって保持されるため、２次コイルに対して金属板を近距離の適正位置に保持ことは容易ではない。
また、板厚の薄い金属板の場合には、誘導加熱された金属板が反って歪むことがある。 In the technique of Patent Document 1, since the induced current of the secondary coil is a current generated by the magnetic field of the primary coil, it is smaller than the current flowing through the primary coil. For this reason, in order to increase the heating efficiency of the secondary collyl with respect to the metal plate, it is preferable to arrange the secondary coil and the metal plate close to each other. However, since the metal plate is usually held by a clamp or the like, it is not easy to hold the metal plate at an appropriate position at a short distance with respect to the secondary coil.
In the case of a thin metal plate, the induction heated metal plate may be warped and distorted.

上記実情に鑑み、板状部材の熱処理に際し、歪みを抑制しつつ均一な加熱が行える誘導加熱コイルが望まれている。   In view of the above circumstances, an induction heating coil that can perform uniform heating while suppressing distortion during heat treatment of a plate-like member is desired.

本発明に係る誘導加熱コイルの特徴構成は、熱処理を行う板状部材を内部に配置し、前記板状部材を誘導電流によって加熱する第１導体と、前記板状部材と前記第１導体との間に配置され、前記第１導体に生じる磁場により誘導電流が流れるとともに当該誘導電流によって前記板状部材にさらに誘導電流を生じさせ、前記板状部材の少なくとも何れか一方の面に当接する絶縁性の間隔保持部材を有し、当該間隔保持部材を介して前記板状部材を支持する第２導体と、を備えた点にある。   A characteristic configuration of the induction heating coil according to the present invention includes: a plate-like member that performs heat treatment disposed therein; a first conductor that heats the plate-like member with an induction current; and the plate-like member and the first conductor. Insulating property that is disposed between and causes an induced current to flow due to a magnetic field generated in the first conductor and further induces an induced current in the plate-like member due to the induced current, and makes contact with at least one surface of the plate-like member And a second conductor that supports the plate-like member via the gap holding member.

第１導体と板状部材との間に第２導体が配置されることで、板状部材は第１導体に加えて第２導体によっても誘導加熱されて加熱量が増加する。ここで、第１導体のみで板状部材を加熱する場合には、板状部材と第１導体の各部との距離にばらつきが存在するため、板状部材の部位によって加熱状態が異なる。これに対して、第２導体を加えることで、板状部材に対する第１導体の影響が緩和されるため、板状部材に対して均一な加熱が可能になる。
第２導体には少なくとも何れか一方の面に絶縁性の間隔保持部材を有し、この間隔保持部材を介して板状部材が第２導体に当接して支持される。これにより、板状部材に対し第２導体を適正な間隔で配置することができるので、第２導体による板状部材の加熱効率を高めることができる。さらに、板状部材が第２導体によって支持されることで、板状部材の歪みの発生を抑制することができる。 By arranging the second conductor between the first conductor and the plate-like member, the plate-like member is induction-heated by the second conductor in addition to the first conductor, and the heating amount increases. Here, in the case where the plate member is heated only by the first conductor, there is a variation in the distance between the plate member and each part of the first conductor, so the heating state differs depending on the portion of the plate member. On the other hand, since the influence of the 1st conductor with respect to a plate-shaped member is relieve | moderated by adding a 2nd conductor, a uniform heating with respect to a plate-shaped member is attained.
The second conductor has an insulating spacing member on at least one surface, and the plate-like member is in contact with and supported by the second conductor via the spacing member. Thereby, since a 2nd conductor can be arrange | positioned with an appropriate space | interval with respect to a plate-shaped member, the heating efficiency of the plate-shaped member by a 2nd conductor can be improved. Furthermore, generation | occurrence | production of the distortion of a plate-shaped member can be suppressed because a plate-shaped member is supported by the 2nd conductor.

本発明に係る誘導加熱コイルの他の特徴構成は、前記間隔保持部材が、前記板状部材に点接触する当接部を複数備えている点にある。   Another characteristic configuration of the induction heating coil according to the present invention is that the spacing member includes a plurality of contact portions that make point contact with the plate-like member.

板状部材は、絶縁性の間隔保持部材を介して第２導体に支持された状態で誘導加熱される。このとき、加熱された板状部材から間隔保持部材に熱伝導が起こり、板状部材の加熱効率が低下することがある。そこで、本構成では、間隔保持部材が板状部材に点接触する当接部を複数備えている。これにより、板状部材と間隔保持部材との接触面積が少なくなり両者間の熱伝導が抑制される。その結果、誘導加熱コイルによる加熱効率の低下を抑制することができ、板状部材に対する均一な加熱状態を維持することができる。   The plate-like member is induction-heated while being supported by the second conductor via an insulating spacing member. At this time, heat conduction occurs from the heated plate-like member to the spacing member, and the heating efficiency of the plate-like member may decrease. Therefore, in this configuration, a plurality of abutting portions in which the interval holding member makes point contact with the plate-like member are provided. Thereby, the contact area of a plate-shaped member and a space | interval holding member decreases, and the heat conduction between both is suppressed. As a result, a decrease in heating efficiency due to the induction heating coil can be suppressed, and a uniform heating state for the plate-like member can be maintained.

本発明に係る誘導加熱コイルの他の特徴構成は、前記第２導体が、前記板状部材の両面に当接している点にある。   Another characteristic configuration of the induction heating coil according to the present invention is that the second conductor is in contact with both surfaces of the plate-like member.

板状部材の両面に対して第２導体による誘導加熱を行うことでき、板状部材の両面において均一な加熱が可能になる。また、板状部材の両面に当接する第２導体によって板状部材が挟持されるため、板状部材１の反りをより少なくすることができる。   Induction heating by the second conductor can be performed on both surfaces of the plate-like member, and uniform heating is possible on both surfaces of the plate-like member. Further, since the plate member is sandwiched between the second conductors that are in contact with both surfaces of the plate member, the warp of the plate member 1 can be further reduced.

本発明に係る誘導加熱コイルの他の特徴構成は、前記第１導体が、前記板状部材の平面方向に沿って伸縮変形可能である点にある。   Another characteristic configuration of the induction heating coil according to the present invention is that the first conductor can be expanded and contracted along a planar direction of the plate-like member.

本構成の如く、第１導体が板状部材の平面方向に沿って伸縮変形可能であると、例えば第１導体が収縮状態のときは、第１導体の間隔が狭くなるため板状部材が全体的に加熱され、第１導体が伸長状態のときは、第１導体の間隔が広くなるため板状部材は部位によって加熱温度に高低が生じ易くなる。このように、第１導体が伸縮変形することで、板状部材に対する加熱温度分布を容易に制御することができ、板状部材をより均一に加熱することができる。   If the first conductor is stretchable and deformable along the planar direction of the plate-like member as in this configuration, for example, when the first conductor is in a contracted state, the interval between the first conductors is narrowed, so the plate-like member is wholly When the first conductor is heated and the first conductor is in the extended state, the interval between the first conductors is widened, so that the plate member is likely to have a high or low heating temperature depending on the part. Thus, when the first conductor expands and contracts, the heating temperature distribution with respect to the plate member can be easily controlled, and the plate member can be heated more uniformly.

第１実施形態の斜視図である。It is a perspective view of a 1st embodiment. 第１実施形態の側断面図である。It is a sectional side view of a 1st embodiment. 第１実施形態の平面図である。It is a top view of a 1st embodiment. 第２実施形態の側断面図である。It is a sectional side view of a 2nd embodiment. 収縮状態の第１導体を示す図である。It is a figure which shows the 1st conductor of a contracted state. 伸長状態の第１導体を示す図である。It is a figure which shows the 1st conductor of the expansion | extension state. 間隔保持部材の変形例である。It is a modification of a space | interval holding member. 間隔保持部材の変形例である。It is a modification of a space | interval holding member. 間隔保持部材の変形例である。It is a modification of a space | interval holding member. 他の実施形態の斜視図である。It is a perspective view of other embodiment. 他の実施形態を示す図である。It is a figure which shows other embodiment.

以下に本発明に係る実施形態について図面を参照しながら説明する。   Embodiments according to the present invention will be described below with reference to the drawings.

〔第１実施形態〕
図１〜図３に示すように、誘導加熱コイル１０は、板状部材１を加熱する際に用いられ、第１導体１１と第２導体１２とを備える。第１導体１１は、加熱対象の板状部材１を収容可能な空間を有するコイルであり、誘導加熱電源（不図示）に接続されている。第２導体１２は、平板状に形成されており、例えば銅板によって構成されている。 [First Embodiment]
As shown in FIGS. 1 to 3, the induction heating coil 10 is used when heating the plate-like member 1, and includes a first conductor 11 and a second conductor 12. The 1st conductor 11 is a coil which has the space which can accommodate the plate-shaped member 1 to be heated, and is connected to an induction heating power source (not shown). The 2nd conductor 12 is formed in flat form, for example, is comprised by the copper plate.

第１導体１１の内部には板状部材１が配置され、第１導体１１と板状部材１との間に第２導体１２が配置される。第２導体１２と板状部材１とは、第１導体１１の内部に順に配置されるか、事前に重ねられた状態で第１導体１１の内部に配置される。   The plate member 1 is disposed inside the first conductor 11, and the second conductor 12 is disposed between the first conductor 11 and the plate member 1. The 2nd conductor 12 and the plate-shaped member 1 are arrange | positioned in order inside the 1st conductor 11, or are arrange | positioned inside the 1st conductor 11 in the state accumulated previously.

誘導加熱電源から第１導体１１に電流が流れると、第１導体１１に１次磁場が生じる。この１次磁場によって板状部材１に誘導電流が流れ、板状部材１が加熱される。このとき、第２導体１２にも１次磁場による誘導電流が流れ、これに伴って第２導体１２に発生した２次磁場により板状部材１が誘導加熱される。   When a current flows from the induction heating power source to the first conductor 11, a primary magnetic field is generated in the first conductor 11. An induced current flows through the plate member 1 by the primary magnetic field, and the plate member 1 is heated. At this time, an induced current due to the primary magnetic field also flows through the second conductor 12, and accordingly, the plate-like member 1 is induction-heated by the secondary magnetic field generated in the second conductor 12.

このように、第１導体１１に加えて第２導体１２によって板状部材１が誘導加熱されることで、板状部材１において誘導電流の局部的な偏りが是正されて、板状部材１に対する均一な加熱が可能になる。第２導体１２は、水冷式であり大電力を用いた加熱処理が可能である。なお、第２導体１２の冷却は、冷却効率の面から水冷式が好ましいが、水冷式以外の冷却方式を採用しても良い。   As described above, the plate-like member 1 is induction-heated by the second conductor 12 in addition to the first conductor 11, whereby the local bias of the induced current is corrected in the plate-like member 1, and the plate-like member 1 is corrected. Uniform heating is possible. The second conductor 12 is water-cooled and can be heat-treated using high power. The second conductor 12 is preferably cooled by a water cooling method from the viewpoint of cooling efficiency, but a cooling method other than the water cooling method may be adopted.

第２導体１２には、板状部材１の少なくとも何れか一方の面に当接することで板状部材１を支持する絶縁性の間隔保持部材１３が設けられている。間隔保持部材１３は、例えばセラミックボール等の球体であり、複数備えられている。間隔保持部材１３は第２導体１２の一方の面にねじ止めや接着等によって固着されている。間隔保持部材１３を構成する球体の夫々には、板状部材１の一方の面に対して点接触する当接部１４が備えられている。   The second conductor 12 is provided with an insulating spacing member 13 that supports the plate member 1 by contacting at least one surface of the plate member 1. The interval holding member 13 is a sphere such as a ceramic ball, for example, and is provided in a plurality. The spacing member 13 is fixed to one surface of the second conductor 12 by screwing or bonding. Each of the spheres constituting the spacing member 13 is provided with a contact portion 14 that makes point contact with one surface of the plate-like member 1.

第２導体１２が絶縁性の間隔保持部材１３を介して板状部材１を支持することで、板状部材１に対して第２導体１２を適正な間隔で配置することができる。これにより、第２導体１２によって板状部材１を確実に誘導加熱することができる。さらに、板状部材１が第２導体１２によって支持されることで、板状部材１の歪みの発生を抑制することができる。   Since the second conductor 12 supports the plate-like member 1 via the insulating interval holding member 13, the second conductor 12 can be arranged at an appropriate interval with respect to the plate-like member 1. Thereby, the plate-like member 1 can be reliably induction-heated by the second conductor 12. Furthermore, since the plate-like member 1 is supported by the second conductor 12, the occurrence of distortion of the plate-like member 1 can be suppressed.

板状部材１は、絶縁性の間隔保持部材１３を介して第２導体１２に支持された状態で誘導加熱される。このとき、加熱された板状部材１から間隔保持部材１３に熱伝導が起こり、板状部材１の加熱効率が低下することがある。そのため、本構成では、間隔保持部材１３が板状部材１に点接触する当接部１４を複数備えている。これにより、板状部材１と間隔保持部材１３との接触面積が少なくなり両者間の熱伝導が抑制される。その結果、誘導加熱コイル１０による加熱効率の低下を抑制することができ、板状部材１に対する均一な加熱状態を維持することができる。   The plate-like member 1 is induction-heated while being supported by the second conductor 12 via the insulating spacing member 13. At this time, heat conduction occurs from the heated plate-like member 1 to the spacing member 13, and the heating efficiency of the plate-like member 1 may decrease. Therefore, in this structure, the space | interval holding member 13 is provided with two or more contact parts 14 which point-contact with the plate-shaped member 1. FIG. Thereby, the contact area of the plate-shaped member 1 and the space | interval holding member 13 decreases, and the heat conduction between both is suppressed. As a result, a decrease in heating efficiency due to the induction heating coil 10 can be suppressed, and a uniform heating state for the plate-like member 1 can be maintained.

第２導体１２は、回転装置２０に載置されている。第２導体１２及び板状部材１が回転装置２０の軸芯Ｘ周りに回転することで、第１導体１１と板状部材１との距離のばらつきが是正されるため、板状部材１に対する誘導加熱をより均一にすることができる。   The second conductor 12 is placed on the rotating device 20. Since the second conductor 12 and the plate-like member 1 are rotated around the axis X of the rotating device 20, the variation in the distance between the first conductor 11 and the plate-like member 1 is corrected. Heating can be made more uniform.

〔第２実施形態〕
本実施形態では、図４に示すように、板状部材１の両面に第２導体１２が配置されている。第２導体１２には、板状部材１に対向する側に夫々間隔保持部材１３が設けられている。これにより、板状部材１は間隔保持部材１３を介して両側の第２導体１２，１２によって挟持される。板状部材１は、上方側に位置する第２導体１２の自重を受けて上下両側の第２導体１２，１２の間に保持される。なお、板状部材１の下方側に位置する第２導体１２は回転装置２０に支持されている。 [Second Embodiment]
In the present embodiment, as shown in FIG. 4, the second conductor 12 is disposed on both surfaces of the plate-like member 1. The second conductor 12 is provided with a spacing member 13 on the side facing the plate member 1. As a result, the plate-like member 1 is sandwiched between the second conductors 12 and 12 on both sides via the spacing member 13. The plate-like member 1 is held between the upper and lower second conductors 12 and 12 by receiving the weight of the second conductor 12 located on the upper side. The second conductor 12 positioned below the plate-like member 1 is supported by the rotating device 20.

本構成により、板状部材１の両面に対して第２導体１２による誘導加熱を行うことでき、板状部材１の両面において均一な加熱が可能になる。また、板状部材１の両面に当接する第２導体１２によって板状部材１が挟持されるため、板状部材１の反りをより少なくすることができる。   With this configuration, induction heating by the second conductor 12 can be performed on both surfaces of the plate-shaped member 1, and uniform heating can be performed on both surfaces of the plate-shaped member 1. Further, since the plate-like member 1 is sandwiched between the second conductors 12 that are in contact with both surfaces of the plate-like member 1, the warpage of the plate-like member 1 can be further reduced.

〔第２実施形態の変形例〕
板状部材１を挟持する第２導体１２、１２は、板状部材１に向けて一方又は双方が押圧付勢されていてもよい。図４では、第２導体１２の付勢部材が破線で示されており、バネ等の付勢部材によって板状部材１が押圧される。本構成により、第２導体１２による板状部材１の挟持力が高まるため、板状部材１の端部の反りをより効果的に抑制することができる。 [Modification of Second Embodiment]
One or both of the second conductors 12 and 12 sandwiching the plate member 1 may be pressed toward the plate member 1. In FIG. 4, the urging member of the second conductor 12 is indicated by a broken line, and the plate-like member 1 is pressed by the urging member such as a spring. With this configuration, the clamping force of the plate-like member 1 by the second conductor 12 is increased, so that the warpage of the end portion of the plate-like member 1 can be more effectively suppressed.

〔他の実施形態〕
（１）図５及び図６に示すように、第１導体１１は、板状部材１の平面方向に沿って伸縮変形可能に構成されていてもよい。図５及び図６では、第２導体１２を省略して第１導体１１の伸縮状態を示している。第１導体１１には例えば伸縮変形させるための付勢機構や移動機構等が設けられている。 [Other Embodiments]
(1) As shown in FIGS. 5 and 6, the first conductor 11 may be configured to be stretchable and deformable along the planar direction of the plate-like member 1. 5 and 6, the second conductor 12 is omitted and the first conductor 11 is shown in an expanded / contracted state. For example, the first conductor 11 is provided with an urging mechanism, a moving mechanism, and the like for expanding and contracting.

図５は第１導体１１のコイルが収縮した状態であり、コイルの間隔が狭いため板状部材１が全体的に加熱される。一方、図６は第１導体１１のコイルが伸長した状態であり、コイルの間隔が広くなるため板状部材１は部位によって加熱温度に高低が生じ易い。このように、第１導体１１が伸縮変形することで、板状部材１の平面方向における加熱温度分布を容易に制御することができる。これにより、板状部材１に対してその形状や加熱する部位に応じて効率よく誘導加熱することができる。   FIG. 5 shows a state in which the coil of the first conductor 11 is contracted, and the plate-like member 1 is entirely heated because the distance between the coils is narrow. On the other hand, FIG. 6 shows a state in which the coil of the first conductor 11 is extended. Since the distance between the coils is wide, the plate member 1 is likely to have high and low heating temperatures depending on the part. Thus, the heating conductor distribution in the plane direction of the plate-shaped member 1 can be easily controlled by the first conductor 11 expanding and contracting. Thereby, induction heating can be efficiently performed on the plate-like member 1 according to the shape and the portion to be heated.

（２）上記の実施形態では、回転装置２０によって第２導体１２と板状部材１とを回転させる例を示したが、回転装置２０に代えて第２導体１２を回転させずに載置する支持体を設けて構成してもよい。 (2) In the above embodiment, the example in which the second conductor 12 and the plate-like member 1 are rotated by the rotating device 20 has been described. However, the second conductor 12 is placed without rotating in place of the rotating device 20. You may comprise and provide a support body.

（３）上記の実施形態では、間隔保持部材１３を球体にした例を示したが、間隔保持部材１３の形状は球体に特定されない。間隔保持部材１３は、例えば図７に示すように、当接部１４が頂部となる山形形状でもよい。こうすると、板状部材１と接触する当接部１４の領域をより小さくすることができる。間隔保持部材１３は、図８に示すように、側面視において波形状に形成し、当接部１４が板状部材１に線接触するものでもよい。こうすると、板状部材１が間隔保持部材１３によって連続的に支持されるため、板状部材１を安定的に保持することができる。 (3) In the above embodiment, an example in which the interval holding member 13 is a sphere has been described. However, the shape of the interval holding member 13 is not specified to be a sphere. For example, as illustrated in FIG. 7, the interval holding member 13 may have a mountain shape in which the contact portion 14 is a top portion. If it carries out like this, the area | region of the contact part 14 which contacts the plate-shaped member 1 can be made smaller. As shown in FIG. 8, the spacing member 13 may be formed in a wave shape in a side view, and the contact portion 14 may be in line contact with the plate-like member 1. If it carries out like this, since the plate-shaped member 1 is continuously supported by the space | interval holding member 13, the plate-shaped member 1 can be hold | maintained stably.

（４）間隔保持部材１３は、図９に示すように、当接部１４を平坦にして板状部材１と面接触する構成でもよい。こうすると、板状部材１が間隔保持部材１３によって支持される面積が増大するため、板状部材１の単位面積当たりの荷重が小さくなる。これにより、板状部材１の表面に圧痕等が付加されるのを防止することができる。その他、間隔保持部材１３は、全体が角柱状や円柱状でもよい。 (4) As shown in FIG. 9, the spacing member 13 may be configured to be in surface contact with the plate-like member 1 with the contact portion 14 being flat. In this case, since the area where the plate-like member 1 is supported by the spacing member 13 increases, the load per unit area of the plate-like member 1 decreases. Thereby, it is possible to prevent indentation or the like from being added to the surface of the plate-like member 1. In addition, the entire spacing holding member 13 may be prismatic or cylindrical.

（５）上記実施形態では、板状部材１と第２導体１２とを回転装置２０に載置した状態で回転させて第１導体１１による加熱を均一にする例を示したが、回転装置２０に代えて、図１０に示すように、板状部材１と第２導体１２とを第１導体１１の内部に対して搬入及び搬出する搬送装置３０を備えてもよい。搬送装置３０と、上記実施形態で示した回転装置２０とを両方を備えて構成してもよい。 (5) In the above embodiment, an example in which the plate member 1 and the second conductor 12 are rotated in a state where they are placed on the rotating device 20 to make the heating by the first conductor 11 uniform is shown. Instead of this, as shown in FIG. 10, a conveying device 30 that carries the plate-like member 1 and the second conductor 12 into and out of the first conductor 11 may be provided. You may comprise both the conveying apparatus 30 and the rotating apparatus 20 shown by the said embodiment.

（６）上記実施形態では、誘導加熱コイル１０によって板状部材１の全体を加熱する例を示したが、誘導加熱コイル１０によって板状部材１の一部を加熱してもよい。
例えば、図１１に示すように、板状部材１において加熱部位に第２導体１２を対向配置し、非加熱部位には間隔保持部材１３を含む第２導体１２と同高さのマスク材１５を対向配置する。これにより、誘導加熱コイル１０によって板状部材１を部分加熱することができる。 (6) Although the example which heats the whole plate-shaped member 1 with the induction heating coil 10 was shown in the said embodiment, you may heat a part of plate-shaped member 1 with the induction heating coil 10. FIG.
For example, as shown in FIG. 11, the second conductor 12 is disposed opposite to the heating part in the plate-like member 1, and the mask material 15 having the same height as the second conductor 12 including the spacing member 13 is provided to the non-heating part. Place them facing each other. Thereby, the plate-like member 1 can be partially heated by the induction heating coil 10.

（７）ケースの内部に誘導加熱コイル１０を収容し、ケースに窒素ガスを封入した密閉状態にして板状部材１を誘導加熱すると好適である。こうすると、ケース中に酸素が存在しないため、誘導加熱される板状部材１の酸化を防止することができる。 (7) It is preferable that the induction heating coil 10 is accommodated inside the case, and the plate-like member 1 is induction-heated in a sealed state in which nitrogen gas is sealed in the case. In this case, since no oxygen is present in the case, oxidation of the plate-like member 1 that is induction-heated can be prevented.

（８）上記実施形態では、板状の第２導体１２を用いた例を示したが、第２導体１２はコイルで形成してもよい。 (8) Although the example using the plate-like second conductor 12 is shown in the above embodiment, the second conductor 12 may be formed of a coil.

本発明に係る誘導加熱コイルは、板状部材の熱処理等に広く用いることができる。   The induction heating coil according to the present invention can be widely used for heat treatment of plate-like members.

１ ：板状部材
１０ ：誘導加熱コイル
１１ ：第１導体
１２ ：第２導体
１３ ：間隔保持部材
１４ ：当接部
１５ ：マスク材
２０ ：回転テーブル 1: Plate-like member 10: Induction heating coil 11: 1st conductor 12: 2nd conductor 13: Space | interval holding member 14: Contact part 15: Mask material 20: Turntable

Claims (4)

熱処理を行う板状部材を内部に配置し、前記板状部材を誘導電流によって加熱する第１導体と、
前記板状部材と前記第１導体との間に配置され、前記第１導体に生じる磁場により誘導電流が流れるとともに当該誘導電流によって前記板状部材にさらに誘導電流を生じさせ、前記板状部材の少なくとも何れか一方の面に当接する絶縁性の間隔保持部材を有し、当該間隔保持部材を介して前記板状部材を支持する第２導体と、を備えた誘導加熱コイル。 A first conductor that heats the plate member by an induced current;
The plate-like member is disposed between the plate-like member and the first conductor, and an induced current flows due to the magnetic field generated in the first conductor, and the plate-like member is further induced by the induced current. An induction heating coil comprising: a second conductor that has an insulating interval holding member that abuts at least one of the surfaces and supports the plate-like member via the interval holding member. 前記間隔保持部材が、前記板状部材に点接触する当接部を複数備えている請求項１に記載の誘導加熱コイル。   The induction heating coil according to claim 1, wherein the spacing member includes a plurality of contact portions that make point contact with the plate-like member. 前記第２導体が、前記板状部材の両面に当接している請求項１又は２に記載の誘導加熱コイル。   The induction heating coil according to claim 1 or 2, wherein the second conductor is in contact with both surfaces of the plate-like member. 前記第１導体が、前記板状部材の平面方向に沿って伸縮変形可能である請求項１〜３の何れか一項に記載の誘導加熱コイル。   The induction heating coil according to any one of claims 1 to 3, wherein the first conductor is stretchable and deformable along a planar direction of the plate-like member.
JP2016026708A 2016-02-16 2016-02-16 Induction heating coil Active JP6789638B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2016026708A JP6789638B2 (en) 2016-02-16 2016-02-16 Induction heating coil
PCT/JP2017/003694 WO2017141713A1 (en) 2016-02-16 2017-02-02 Induction heating coil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2016026708A JP6789638B2 (en) 2016-02-16 2016-02-16 Induction heating coil

Publications (3)

Publication Number Publication Date
JP2017147065A true JP2017147065A (en) 2017-08-24
JP2017147065A5 JP2017147065A5 (en) 2019-03-14
JP6789638B2 JP6789638B2 (en) 2020-11-25

Family

ID=59625796

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2016026708A Active JP6789638B2 (en) 2016-02-16 2016-02-16 Induction heating coil

Country Status (2)

Country Link
JP (1) JP6789638B2 (en)
WO (1) WO2017141713A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005025983A (en) * 2003-06-30 2005-01-27 Koyo Thermo System Kk Induction heating apparatus
JP2007122924A (en) * 2005-10-25 2007-05-17 Shimada Phys & Chem Ind Co Ltd Induction heating device
JP2009164303A (en) * 2007-12-28 2009-07-23 Toyota Motor Corp Soldering device and soldering method
JP2014205283A (en) * 2013-04-12 2014-10-30 トクデン株式会社 Electric heating device
WO2015155369A1 (en) * 2013-12-31 2015-10-15 Roctool Device for heating a mold

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005025983A (en) * 2003-06-30 2005-01-27 Koyo Thermo System Kk Induction heating apparatus
JP2007122924A (en) * 2005-10-25 2007-05-17 Shimada Phys & Chem Ind Co Ltd Induction heating device
JP2009164303A (en) * 2007-12-28 2009-07-23 Toyota Motor Corp Soldering device and soldering method
JP2014205283A (en) * 2013-04-12 2014-10-30 トクデン株式会社 Electric heating device
WO2015155369A1 (en) * 2013-12-31 2015-10-15 Roctool Device for heating a mold

Also Published As

Publication number Publication date
WO2017141713A1 (en) 2017-08-24
JP6789638B2 (en) 2020-11-25

Similar Documents

Publication Publication Date Title
US20170067130A1 (en) Induction Hardening Apparatus, Induction Hardening Method, Induction Heating Coil, Heat Treatment Apparatus, and Heat Treatment Method
KR102562059B1 (en) Thermally insulated electrical contact probe and heated platen assembly
WO2018164039A1 (en) Soldering device
JP5985141B2 (en) Induction heating coil, heat treatment apparatus, and heat treatment method
JP2009176584A (en) Device and method for heating material
JP2013055089A (en) Electrostatic chuck device
JP6732529B2 (en) Conduction cooling device and conduction cooling method
JP2007005353A (en) Stage
JP6331900B2 (en) Induction heating device for metal strip
JP5473127B2 (en) Induction heating coil
JP2017147065A (en) Induction heating coil
JP2015134944A (en) Thin metal member quenching method and quenching device
JP6904122B2 (en) Manufacturing method of semiconductor devices
KR102028017B1 (en) Packaging apparatus for thermoelelctric module
JP5033020B2 (en) Heat treatment method using induction heating and induction heating apparatus
JP6605218B2 (en) Heating method
JP5667786B2 (en) Induction heating apparatus and induction heating method
KR20200075662A (en) Induction Heating Apparatus
JP5216153B2 (en) Temperature control method
JP7330774B2 (en) High frequency induction heating device
JP6190156B2 (en) Ceramic plate and heater unit
JP2008066005A (en) Induction heating coil in circular flat surface
JP2018019000A (en) Power semiconductor module
JP5437910B2 (en) Temperature control device
KR101562963B1 (en) Tube for high temperature annealing furnace of box type

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20190123

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20190123

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20200303

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20200501

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20201013

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20201104

R150 Certificate of patent or registration of utility model

Ref document number: 6789638

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250