JP2017045505A5 - - Google Patents
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- JP2017045505A5 JP2017045505A5 JP2015164338A JP2015164338A JP2017045505A5 JP 2017045505 A5 JP2017045505 A5 JP 2017045505A5 JP 2015164338 A JP2015164338 A JP 2015164338A JP 2015164338 A JP2015164338 A JP 2015164338A JP 2017045505 A5 JP2017045505 A5 JP 2017045505A5
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- switching element
- heated
- resonance
- voltage
- load circuit
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- 239000003990 capacitor Substances 0.000 claims 14
- 238000010438 heat treatment Methods 0.000 claims 12
- 239000002184 metal Substances 0.000 claims 8
- 230000005674 electromagnetic induction Effects 0.000 claims 3
Claims (4)
加熱コイルと共振コンデンサで構成され、被加熱物を加熱する共振負荷回路と、
直列に接続される第一のスイッチング素子及び第二のスイッチング素子で構成される上下アームを有し、前記直流電源が出力する直流電圧を交流電圧に変換して前記共振負荷回路に供給するハーフブリッジ型のインバータと、
前記共振負荷回路の前記加熱コイルと前記共振コンデンサの接続点と前記直流電源の負極間に第三のスイッチング素子を備え、
前記被加熱物が非磁性金属である場合は、前記第三のスイッチング素子をオフとして電流共振インバータ方式で前記被加熱物を加熱し、
前記被加熱物が磁性金属である場合は、前記第二のスイッチング素子をオフ状態とし、前記第一のスイッチング素子と前記第三のスイッチング素子をスイッチングするアクティブクランプ電圧共振インバータ方式で前記被加熱物を加熱することを特徴とする電磁誘導加熱装置。 DC power supply,
Resonant load circuit that is composed of a heating coil and a resonant capacitor, and heats an object
A half bridge having an upper and lower arm composed of a first switching element and a second switching element connected in series, and converting the DC voltage output from the DC power source into an AC voltage and supplying the AC voltage to the resonant load circuit Type inverter,
A third switching element is provided between the connection point of the heating coil of the resonant load circuit and the resonant capacitor and the negative electrode of the DC power source,
When the object to be heated is a nonmagnetic metal, the object to be heated is heated by a current resonance inverter method with the third switching element turned off,
When the object to be heated is a magnetic metal, the object to be heated is an active clamp voltage resonance inverter method in which the second switching element is turned off and the first switching element and the third switching element are switched. An electromagnetic induction heating device, characterized by heating.
加熱コイルと共振コンデンサで構成され、被加熱物を加熱する共振負荷回路と、
互いに直列に接続される第一のスイッチング素子及び第二のスイッチング素子で構成される上下アームを有し、前記直流電源が出力する直流電圧を交流電圧に変換して前記共振負荷回路に供給するハーフブリッジ型のインバータと、
前記共振負荷回路の前記加熱コイルと前記共振コンデンサの接続点と前記直流電源の負極間にスイッチと第三のスイッチング素子の直列回路を備え、
前記被加熱物が非磁性金属である場合は、前記スイッチと前記第三のスイッチング素子をオフとして電流共振インバータ方式で前記被加熱物を加熱し、
前記被加熱物が磁性金属である場合は、前記スイッチをオン状態、前記第二のスイッチング素子をオフ状態とし、前記第一のスイッチング素子と前記第三のスイッチング素子をスイッチングするアクティブクランプ電圧共振インバータ方式で前記被加熱物を加熱することを特徴とする電磁誘導加熱装置。 DC power supply,
Resonant load circuit that is composed of a heating coil and a resonant capacitor, and heats an object
A half arm having upper and lower arms composed of a first switching element and a second switching element connected in series to each other, and converts a DC voltage output from the DC power source into an AC voltage and supplies the AC voltage to the resonant load circuit A bridge-type inverter;
A series circuit of a switch and a third switching element is provided between a connection point of the heating coil and the resonance capacitor of the resonance load circuit and a negative electrode of the DC power source,
When the heated object is a non-magnetic metal, the heated object is heated by a current resonance inverter method with the switch and the third switching element turned off,
When the object to be heated is a magnetic metal, an active clamp voltage resonance inverter that switches the first switching element and the third switching element by turning the switch on and the second switching element off An electromagnetic induction heating apparatus, wherein the object to be heated is heated by a method.
加熱コイルと第一の共振コンデンサで構成され、被加熱物を加熱する共振負荷回路と、 互いに直列に接続される第一のスイッチング素子及び第二のスイッチング素子で構成される上下アームを有し、前記直流電源が出力する直流電圧を交流電圧に変換して前記共振負荷回路に供給するハーフブリッジ型のインバータと、
前記共振負荷回路の前記加熱コイルと前記第一の共振コンデンサの接続点と前記直流電源の負極間にスイッチと第三のスイッチング素子の直列回路を備えると共に、前記直列回路の接続点と前記インバータの出力点間に第二の共振コンデンサを備え、
前記被加熱物が非磁性金属である場合は、前記スイッチと前記第三のスイッチング素子をオフとして電流共振インバータ方式で前記被加熱物を加熱し、
前記被加熱物が磁性金属である場合は、前記スイッチをオン状態、前記第二のスイッチング素子をオフ状態とし、前記第一のスイッチング素子と前記第三のスイッチング素子をスイッチングするアクティブクランプ電圧共振インバータ方式で前記被加熱物を加熱することを特徴とする電磁誘導加熱装置。 DC power supply,
A resonance load circuit configured to include a heating coil and a first resonance capacitor, and to heat an object to be heated; and an upper and lower arm configured of a first switching element and a second switching element connected in series to each other; A half-bridge inverter that converts the DC voltage output from the DC power source into an AC voltage and supplies the AC voltage to the resonant load circuit;
Provided with a series circuit of a switch and the third switching element between the negative electrode of the DC power source and the connection point of the said heating coil first resonant capacitor of the resonant load circuit, a connection point of the series circuit of the inverter A second resonant capacitor is provided between the output points,
When the heated object is a non-magnetic metal, the heated object is heated by a current resonance inverter method with the switch and the third switching element turned off,
When the object to be heated is a magnetic metal, an active clamp voltage resonance inverter that switches the first switching element and the third switching element by turning the switch on and the second switching element off An electromagnetic induction heating apparatus, wherein the object to be heated is heated by a method.
加熱コイルと第一の共振コンデンサで構成され、被加熱物を加熱する共振負荷回路と、 直列に接続される第一のスイッチング素子及び第二のスイッチング素子で構成される上下アームを有し、前記直流電源が出力する直流電圧を交流電圧に変換して前記共振負荷回路に供給するハーフブリッジ型のインバータと、
前記第一のスイッチング素子と前記第二のスイッチング素子の間に直列接続された第二の共振コンデンサと、
前記第一のスイッチング素子と前記第二の共振コンデンサの接続点と前記第一の共振コンデンサを接続するか、前記第二の共振コンデンサと前記第二のスイッチング素子の接続点と前記加熱コイルを接続するかを切り替える切り替えスイッチを備え、
前記被加熱物が非磁性金属である場合は、前記切り替えスイッチによって前記第二の共振コンデンサを短絡状態として電流共振インバータ方式で前記被加熱物を加熱し、
前記被加熱物が磁性金属である場合は、前記切り替えスイッチによって前記第一の共振コンデンサを短絡状態として、アクティブクランプ電圧共振インバータ方式で前記被加熱物を加熱することを特徴とする電磁誘導加熱装置。 DC power supply,
A resonance load circuit configured to include a heating coil and a first resonance capacitor, and to heat an object to be heated; and an upper and lower arm including a first switching element and a second switching element connected in series; A half-bridge inverter that converts a DC voltage output from a DC power source into an AC voltage and supplies the AC voltage to the resonant load circuit;
A second resonant capacitor connected in series between the first switching element and the second switching element;
Connect the connection point between the first switching element and the second resonance capacitor and the first resonance capacitor, or connect the connection point between the second resonance capacitor and the second switching element and the heating coil. It has a changeover switch that switches between
When the object to be heated is a non-magnetic metal, the second resonance capacitor is short-circuited by the changeover switch to heat the object to be heated by a current resonance inverter method,
When the object to be heated is a magnetic metal, the first resonance capacitor is short-circuited by the changeover switch, and the object to be heated is heated by an active clamp voltage resonance inverter method. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015164338A JP6452576B2 (en) | 2015-08-24 | 2015-08-24 | Electromagnetic induction heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015164338A JP6452576B2 (en) | 2015-08-24 | 2015-08-24 | Electromagnetic induction heating device |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2017045505A JP2017045505A (en) | 2017-03-02 |
| JP2017045505A5 true JP2017045505A5 (en) | 2018-03-01 |
| JP6452576B2 JP6452576B2 (en) | 2019-01-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2015164338A Active JP6452576B2 (en) | 2015-08-24 | 2015-08-24 | Electromagnetic induction heating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP6452576B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102040221B1 (en) * | 2017-12-20 | 2019-11-04 | 엘지전자 주식회사 | Induction heating device having improved interference noise canceling function and power control function |
| CN110446287B (en) * | 2018-05-04 | 2022-02-25 | 佛山市顺德区美的电热电器制造有限公司 | Electric cooking appliance and IGBT control device and method thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2816621B2 (en) * | 1992-03-03 | 1998-10-27 | シャープ株式会社 | Induction heating cooker |
| JP4384085B2 (en) * | 2005-06-15 | 2009-12-16 | 日立アプライアンス株式会社 | Induction heating cooker |
| JP4521338B2 (en) * | 2005-09-16 | 2010-08-11 | 日立アプライアンス株式会社 | Induction heating cooker |
| JP4358876B2 (en) * | 2007-04-20 | 2009-11-04 | 三菱電機株式会社 | Induction heating cooker |
| JP5003602B2 (en) * | 2008-06-16 | 2012-08-15 | パナソニック株式会社 | Induction heating device |
| JP5939903B2 (en) * | 2012-06-22 | 2016-06-22 | 日立アプライアンス株式会社 | Electromagnetic induction heating device |
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- 2015-08-24 JP JP2015164338A patent/JP6452576B2/en active Active
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