JPS6364287A - Radio frequency heater - Google Patents
Radio frequency heaterInfo
- Publication number
- JPS6364287A JPS6364287A JP20831786A JP20831786A JPS6364287A JP S6364287 A JPS6364287 A JP S6364287A JP 20831786 A JP20831786 A JP 20831786A JP 20831786 A JP20831786 A JP 20831786A JP S6364287 A JPS6364287 A JP S6364287A
- Authority
- JP
- Japan
- Prior art keywords
- heating chamber
- magnetron
- plate
- temperature switch
- upper plate
- 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
- 238000010438 heat treatment Methods 0.000 claims description 49
- 230000002159 abnormal effect Effects 0.000 claims description 17
- 230000017525 heat dissipation Effects 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 4
- 230000005856 abnormality Effects 0.000 description 7
- 230000005855 radiation Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000191 radiation effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、高周波発生装置を有する高周波加熱装置が異
常使用されたときに、安全を確保するだめの本体構造に
関するものでちる。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a main body structure for ensuring safety when a high frequency heating device having a high frequency generator is used abnormally.
従来の技術
一般に従来の高層、波茄熱装置は第５図と第６図に示す
ように加熱室上板８の上に、温度スイッチ３を、温度ス
イッチ取り付は板４を用い、ビス１２で固定していた。2. Description of the Related Art In general, conventional high-rise and wave heating devices have a temperature switch 3 mounted on the top plate 8 of the heating chamber, a plate 4 for mounting the temperature switch, and screws 12 as shown in FIGS. It was fixed with
こうすることにより、本体１６を異常使用したときに、
加熱室７内で異常温度上昇状態が発生したときには加熱
室上板８を通してその異常温度上昇を温度スイッチ３に
伝達することで、高圧トランス５やマグネトロン２など
の電気部品への電源の供給を遮断したり、また、ファン
６が何らかの理由で回転し全くなったりマグネトロン２
に異常が発生して異常温度上昇状態が発生したときには
、マグ・ネトロン２の熱は、マグネトロン２、導波管１
３、加熱室中（１壁９、加熱室上板８、温度スイッチ３
という経路で熱が伝わり、高圧トランス６やマグネトロ
ン２などの電気部品へ電源の供給を遮断するような構造
となっていた。By doing this, when the main body 16 is used abnormally,
When an abnormal temperature rise occurs in the heating chamber 7, the abnormal temperature rise is transmitted to the temperature switch 3 through the heating chamber upper plate 8, thereby cutting off the power supply to electrical components such as the high voltage transformer 5 and the magnetron 2. Or, if fan 6 stops rotating for some reason, magnetron 2
When an abnormality occurs and an abnormal temperature rise occurs, the heat of the magnetron 2 is transferred to the magnetron 2 and the waveguide 1.
3. Inside the heating chamber (1 wall 9, heating chamber top plate 8, temperature switch 3
The structure was such that heat was transmitted through this path, cutting off the power supply to electrical components such as the high-voltage transformer 6 and magnetron 2.
発明が解決しようとする問題点
ところが、第５図と第６図に示すような構造で、ファン
６が何らかの原因で回転しなくなって、冷却風１１が送
られなくなったりマグネトロン２自体に異常が発生して
、マグネトロン２に異常温度上昇状態になった場合に、
マグネトロン２の熱は、マグネトロン２、導波管１３、
加熱室側壁９、加熱室上板８、温度スイッチ３という経
路で熱が伝わり、高圧トランス５やマグネトロン２など
の電気部品へ電源の供給を遮断するようになってはいる
が、こういう経路では熱抵抗が、大きく、熱がなかなか
伝わらないため、高圧トランス５やマグネトロン２への
電源の供給を遮断するのに、長時間が必要となり、その
間Ｑで本体１６の絶縁抵抗が劣化してしまい使用者が感
電する危険性があるばかりでなく、本体１６が発火する
という危険性があった０
本発明はこのような従来の問題点を解決するものであり
、簡単な構成でマグネトロン２の異常温度上昇をすみや
かに温度スイッチ３が検知し、高圧トランス５やマグネ
トロン２への電源の供給を遮断するというすぐれた高周
波加熱装置を提供するものである。Problems to be Solved by the Invention However, in the structure shown in FIGS. 5 and 6, the fan 6 stops rotating for some reason, the cooling air 11 is no longer sent, or an abnormality occurs in the magnetron 2 itself. If magnetron 2 experiences an abnormal temperature rise,
The heat of the magnetron 2 is transferred to the magnetron 2, the waveguide 13,
Heat is transmitted through the heating chamber side wall 9, heating chamber top plate 8, and temperature switch 3, and the power supply to electrical components such as the high voltage transformer 5 and magnetron 2 is cut off. Since the resistance is large and heat does not transfer easily, it takes a long time to cut off the power supply to the high voltage transformer 5 and magnetron 2, and during this time the insulation resistance of the main body 16 deteriorates, causing damage to the user. There is a risk that the main body 16 may catch fire as well as receive an electric shock. This provides an excellent high-frequency heating device in which the temperature switch 3 promptly detects the temperature change and cuts off the power supply to the high-voltage transformer 5 and magnetron 2.
問題点を解決するための手段
本発明の高周波加熱装置は、被加熱物を収納する加熱室
の一部を構成する加熱室上板へ異常使用時の異常温度上
昇を検知して、高圧トランスなどの電気部品への電源供
給を遮断する温度スイッチを取り付け、さらに、温度ス
イッチとマグネトロンの間で伝熱効果をもつ伝熱板を設
け、その伝熱板（では一部数熱部を設けることで、正常
使用時には放熱効果をもたせ、また異常時にはマグネト
ロンの異常温度上昇を温度スーイノチ近傍へ伝えるよう
、そして、伝熱板を加熱室上板とマグネトロン外壁との
２ケ所に固定され、ファンから送り出される冷却風の通
路に、伝熱板の中間に設けられた放熱部を露出させたう
え、加熱室上板の固定部分に温度スイッチの取り付は部
を有する構成とじたものである。Means for Solving the Problems The high-frequency heating device of the present invention detects an abnormal temperature rise in the upper plate of the heating chamber, which constitutes a part of the heating chamber that houses the object to be heated, during abnormal use, and A temperature switch is installed to cut off the power supply to the electrical parts of the magnetron, and a heat transfer plate is installed that has a heat transfer effect between the temperature switch and the magnetron. The heat transfer plate is fixed to two places, the upper plate of the heating chamber and the outer wall of the magnetron, and the cooling is sent out from the fan so that it has a heat dissipation effect during normal use, and in case of abnormality, the abnormal temperature rise of the magnetron is transmitted to the vicinity of the temperature control point. The heat dissipating part provided in the middle of the heat exchanger plate is exposed to the air passage, and a temperature switch is attached to a fixed part of the upper plate of the heating chamber.
作 用
本発明の高周波加熱装置は、加熱室上板とマグネトロン
外壁の２ケ所に伝熱板が固定され、その伝熱板の中間て
は、放熱部を設け、ファンが何らかの原因で停止したと
きや、マグネトロン自身に異常が発生したときなどに起
こる異常温度上昇で発生する熱を加熱室上板に伝え、加
熱室上板に取り付けである温度スイッチを早急に動作さ
せ、高圧トランスなどの電気部品への電源供給を遮断す
ることで安全性を確保しようとするものである。Function: In the high-frequency heating device of the present invention, a heat transfer plate is fixed at two places, the upper plate of the heating chamber and the outer wall of the magnetron, and a heat radiation part is provided in the middle of the heat transfer plate, so that when the fan stops for some reason, The heat generated by the abnormal temperature rise that occurs when an abnormality occurs in the magnetron itself is transferred to the heating chamber top plate, and the temperature switch attached to the heating chamber top plate is activated immediately to prevent electrical components such as high voltage transformers. The aim is to ensure safety by cutting off the power supply to the
また正常使用時には、ファンから送り出される冷却風が
伝熱板の一部を形成する放熱部を通過するように露出さ
せであるため、マグネトロンの放熱効率を向上させるも
のである。In addition, during normal use, the cooling air sent out from the fan is exposed so as to pass through the heat dissipation part forming a part of the heat transfer plate, which improves the heat dissipation efficiency of the magnetron.
実施例
以下本発明の実施例を第１図、第２図、第３図ならびに
第４図を参照にして説明する。EXAMPLES Hereinafter, examples of the present invention will be described with reference to FIGS. 1, 2, 3, and 4.
第１図に示すように、加熱室７の一部を構成する加熱室
上板８とマグネトロン２の外壁に伝熱板１をビス１０
ａ 、 １０ ｂで固定し、伝熱板１の中間部には、放
熱部１７を設け、ファン６からの冷却風１１が通過可能
であるようにし、伝熱板１の加熱室上板８への取り付は
部には、本体１６の異常使用時の異常温度上昇を検知し
て、高圧トランス５やマグネトロン２への電源供給を遮
断する温度スイッチ３を加熱室上板７の一部を構成する
加熱室上板８に取り付けるようにする。As shown in FIG. 1, a heat transfer plate 1 is attached to the outer wall of the heating chamber upper plate 8 and the magnetron 2, which constitute a part of the heating chamber 7, using screws 10.
a and 10 b, and a heat dissipation part 17 is provided in the middle part of the heat exchanger plate 1 so that the cooling air 11 from the fan 6 can pass through to the heating chamber upper plate 8 of the heat exchanger plate 1. A part of the heating chamber upper plate 7 is equipped with a temperature switch 3 that detects an abnormal temperature rise during abnormal use of the main body 16 and cuts off the power supply to the high voltage transformer 5 and magnetron 2. It is attached to the heating chamber upper plate 8.
このようにすれば、伺らかの異常でファン６が停止して
しまい、冷却風１１ａ、１１ｂが送られなくなったり、
マグネトロン２に異常が発生して、マグネトロン２が異
常温度上昇状態になったとき、第６図に示す従来の実施
例に示すような、マグネトロン２→導波管１３→加熱室
側壁９→加熱室上板８→温度スイッチ３という伝熱経路
より、第２図に示すマグネトロン２→伝熱板１→温度ス
イッチ３という伝熱経路が熱抵抗的にも小さいうえに直
接伝熱板１で温度スイッチ３を取り付けであるので熱伝
導性がよく異常湿度上昇を短時間で温度スイッチ３が検
知して、高圧トランス５やマグネトロン２への電源供給
を遮断してしまう。このことで本体１６が異常温度上昇
により絶縁抵抗が劣化し、使用者が感電してしまったり
、最悪の場合には、本体１６が発火してしまうという事
故が防止できる。If you do this, the fan 6 will stop due to some abnormality, and the cooling air 11a, 11b will not be sent.
When an abnormality occurs in the magnetron 2 and the magnetron 2 becomes in an abnormally high temperature state, the magnetron 2 → waveguide 13 → heating chamber side wall 9 → heating chamber as shown in the conventional embodiment shown in FIG. Compared to the heat transfer path from upper plate 8 to temperature switch 3, the heat transfer path from magnetron 2 to heat transfer plate 1 to temperature switch 3 shown in FIG. 3 is attached, so it has good thermal conductivity, and the temperature switch 3 detects an abnormal rise in humidity in a short time, cutting off the power supply to the high voltage transformer 5 and magnetron 2. This can prevent an accident in which the insulation resistance of the main body 16 deteriorates due to an abnormal temperature rise, resulting in an electric shock to the user or, in the worst case, the main body 16 catching fire.
ソシて、異常温度上昇が加熱室７で発生しても、加熱室
上板８を通じて、温度スイッチ３に熱が伝わるうえ、加
熱室上板８へ、温度スイッチ３は、強度的にも強い伝熱
板１で固定されているので、密着性がよく、温度スイッ
チ３の動作が短時間に行なわれ、感電事故１発火事故を
防止できる。以下に表１に伝熱板１の有無のデータを記
す。Therefore, even if an abnormal temperature rise occurs in the heating chamber 7, the heat is transferred to the temperature switch 3 through the heating chamber top plate 8, and the temperature switch 3 is also a strong conductor to the heating chamber top plate 8. Since it is fixed by the hot plate 1, the adhesion is good and the temperature switch 3 can be operated in a short time, thereby preventing electric shock and ignition accidents. Table 1 below shows data regarding the presence or absence of the heat exchanger plate 1.
表 １ ファンが停止して６分後の温度スイッチの温度
さらに、本体１６が正常使用時には、伝熱板１がマグネ
トロン２の外壁に固定されているためマグネトロン２の
放熱面積が増加するうえ、ファン６からの冷却風が伝熱
板１の中間にある放熱部１７を通過するために、マグネ
トロン２の冷却効率が向上する。このことにより、電気
用品取締法で規制されているマグネトロン２の陽極を収
納している真空容器の温度が下がり、逆に陽極電圧は上
昇するため、マグネトロン２自体の効率が上がり、同一
出力を出すだめの陽極電流は減少する。よって高圧トラ
ンス５の２次電流も減少するので２次巻線の低下と相ま
って高圧トランス５の小型・軽量化に寄与することがで
きるしマグネトロン２の寿命ものばすことができる。ま
た、第３図のように伝熱板１の放熱部１７に放熱フィン
１４を設けることで放熱効果を向上させることもできる
。Table 1 Temperature switch temperature 6 minutes after the fan stops Furthermore, when the main body 16 is in normal use, the heat transfer plate 1 is fixed to the outer wall of the magnetron 2, so the heat dissipation area of the magnetron 2 increases, and the fan Since the cooling air from the magnetron 6 passes through the heat radiation section 17 located in the middle of the heat exchanger plate 1, the cooling efficiency of the magnetron 2 is improved. This lowers the temperature of the vacuum container housing the anode of magnetron 2, which is regulated by the Electrical Appliance and Materials Control Law, and conversely increases the anode voltage, increasing the efficiency of magnetron 2 itself and producing the same output. The anode current in the tank decreases. Therefore, the secondary current of the high-voltage transformer 5 is also reduced, which together with the reduction in the secondary winding contributes to making the high-voltage transformer 5 smaller and lighter, and the life of the magnetron 2 can be extended. Furthermore, the heat radiation effect can be improved by providing radiation fins 14 on the heat radiation part 17 of the heat exchanger plate 1 as shown in FIG.
さらに、伝熱板１の材質をアルミニウムのような熱伝導
性、放熱性のよいものにすると、上記異常温度上昇時に
さらに温度スイッチ３の動作時間も短縮できるうえ、放
熱性もよいため、マグネトロン２の冷却効率をさらに向
上させることもできる０
また、伝熱板１が、加熱室上板８とマグネトロン２に固
定されているため、本体１６が落下したときには、落下
に対する強度を向上させることもできる。Furthermore, if the material of the heat exchanger plate 1 is made of a material with good thermal conductivity and heat dissipation properties such as aluminum, the operation time of the temperature switch 3 can be further shortened when the above-mentioned abnormal temperature rises, and the heat dissipation properties are also good. Further, since the heat transfer plate 1 is fixed to the heating chamber upper plate 8 and the magnetron 2, it is possible to further improve the strength against the fall when the main body 16 falls. .
そして、第４図に示すように温度スイッチ３を温度スイ
ッチ取り付は板４で、加熱室上板８へ固定すると、温度
スイッチ３の取り付は位置の自由度を増すことができる
。Then, as shown in FIG. 4, if the temperature switch 3 is fixed to the heating chamber upper plate 8 using the plate 4 for mounting the temperature switch 3, the degree of freedom in the mounting position of the temperature switch 3 can be increased.
発明の効果
−以上のように、本発明の高周波加熱装置は、マグネト
ロンと加熱室上板に、中間に放熱部をもつ伝熱板を固定
したものであり、従って何らかの原因でファンの回転が
停止したり、マグネトロン自体に異常が発生して、マグ
ネトロンに異常温度状態になっても、伝熱板を介してマ
グネトロンの熱が温度スイッチまで伝わって、温度スイ
ッチを短時間で動作させて、高圧トランスやマグネトロ
ンなどの電気部品への電源供給を停止させることで、感
電事故２発火事故を防止できる。さらに、本体が正常に
動作しているときには、伝熱板がマグネトロンに固定さ
れるとともて、放熱部が設けられているため・マグネト
ロンの放熱効率がよくなって、高圧トランスの小型・軽
量化ならびにマグネトロンの寿命をのばすことができる
。Effects of the Invention - As described above, the high-frequency heating device of the present invention has a heat transfer plate fixed to the magnetron and the upper plate of the heating chamber, and has a heat dissipation section in the middle. Even if an abnormality occurs in the magnetron itself and the magnetron reaches an abnormal temperature state, the heat from the magnetron will be transferred to the temperature switch via the heat transfer plate, operating the temperature switch in a short time, and the high voltage transformer will be activated. Electric shock accidents and fire accidents can be prevented by stopping the power supply to electrical components such as magnetrons and magnetrons. Furthermore, when the main body is operating normally, the heat transfer plate is fixed to the magnetron and a heat dissipation section is provided, which improves the heat dissipation efficiency of the magnetron and makes the high voltage transformer smaller and lighter. In addition, the life of the magnetron can be extended.
そして、本体が落下したときに、伝熱板がマグネトロン
と加熱室上板に固定しであるため、強度を増加させるこ
ともできる。Furthermore, since the heat transfer plate is fixed to the magnetron and the upper plate of the heating chamber when the main body falls, the strength can be increased.
第１図は本発明の一実施例における高周波加熱装置の一
部切欠斜視図、第２図は同要部断面図、第３図は本発明
の第２の実施例の要部断面図、第４図は同実施例の一部
切欠斜視図、第６図は従来例の高周波加熱装置の一部切
欠斜視図、第６図は同要部断面図である。
１・・・・・・伝熱板、２・・・・・・マグネトロン、
３・・・・・・温度スイッチ、４・・・・・・温度スイ
ッチ取り付は板、５・・・高圧トランス、６・・・・・
・ファン、７・・・・・・加熱室、８・・・・・・加熱
室上板、９・・・・・・加熱室側壁、１０ 、１０’・
・・・・・ビス、１１．１１’・・・・・・冷却風、１
２・・印・ビス、１３・・・・・・導波管、１４・・・
・・・放熱フィン、１８・・・・・・本体、１７・・・
・・・放熱部。
！−−イ＝ミ声−（４］〔
？−マグネトロノ
３− ；工度スイッチ煎り付は坂
６−） ァ ン
７−加熱！
Ｂ−ｔｙｓ熟ｘｊ：ＨＬ
デー加ＲＩ便１！！
ｔｏ、１６− ビ ス
／ ７．７１′−渣 即 鳳
第 １ 図 ７６一本 休業２図
第４図
／に
ｌ−−イ云１８イ」し
？−マグ卑トロン
３・〜湿度スイッチ
４− 温度スイッチ収り付は哉
５−高圧トランス
６− フ ァ ン
７−加熱！
８・−加Ｐ室上損
？−茄終室食ｊ４２FIG. 1 is a partially cutaway perspective view of a high-frequency heating device according to an embodiment of the present invention, FIG. 2 is a sectional view of the same essential part, and FIG. FIG. 4 is a partially cutaway perspective view of the same embodiment, FIG. 6 is a partially cutaway perspective view of a conventional high frequency heating device, and FIG. 6 is a sectional view of the main part thereof. 1... Heat exchanger plate, 2... Magnetron,
3...Temperature switch, 4...Temperature switch mounting plate, 5...High voltage transformer, 6...
・Fan, 7... Heating chamber, 8... Heating chamber top plate, 9... Heating chamber side wall, 10, 10'.
...screw, 11.11'...cooling air, 1
2... mark/screw, 13... waveguide, 14...
...Radiation fin, 18...Main body, 17...
...heat dissipation section. ! --Lee Mi voice- (4) [?-Magnetrono 3-; Technique switch with burner is Saka 6-) Fan 7-Heating! B-tys mature xj:HL Day Canada RI flight 1! ! to, 16-bis / 7.71'-渣 so 驳 1 fig. - Mag basetron 3 - Humidity switch 4 - Temperature switch included 5 - High voltage transformer 6 - Fan 7 - Heating! 8.-Additional loss on the P room? -Eggplant final room meal j42
Claims (2)
波を供給するマグネトロン、高圧トランス等の電気部品
からなる高周波発生装置と、前記高周波発生装置を冷却
するファンとからなり、前記加熱室の一部を構成する加
熱室上板と、前記加熱室上板上には異常使用時の異常温
度上昇を検知して、前記電気部品への電源供給を遮断す
る温度スイッチと前記温度スイッチと前記マグネトロン
間で伝熱効果をもつ伝熱板とを備え、前記伝熱板には一
部放熱部を設ける構成とした高周波加熱装置。(1) Consisting of a heating chamber that stores an object to be heated, a high frequency generator made of electrical components such as a magnetron and a high voltage transformer that supply high frequency waves to the heating chamber, and a fan that cools the high frequency generator, A heating chamber upper plate that constitutes a part of the chamber; and a temperature switch and a temperature switch that detect an abnormal temperature rise during abnormal use and cut off the power supply to the electrical components on the heating chamber upper plate. A high-frequency heating device comprising: a heat exchanger plate having a heat transfer effect between the magnetrons, and a part of the heat exchanger plate is provided with a heat dissipation section.
定され、ファンから送り出される冷却風の通路に露出す
る伝熱板の中間に設けられた放熱部を備え、前記加熱室
上板への固定部分には、前記温度スイッチの取付部を有
する構成とした特許請求の範囲第１項記載の高周波加熱
装置。(2) A heat dissipation section is provided in the middle of the heat transfer plate, which is fixed at two places, the upper plate of the heating chamber and the outer wall of the magnetron, and is exposed to the passage of the cooling air sent out from the fan, and is connected to the upper plate of the heating chamber. 2. The high-frequency heating device according to claim 1, wherein the fixed portion has a mounting portion for the temperature switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61208317A JPH0675430B2 (en) | 1986-09-04 | 1986-09-04 | High frequency heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61208317A JPH0675430B2 (en) | 1986-09-04 | 1986-09-04 | High frequency heating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6364287A true JPS6364287A (en) | 1988-03-22 |
| JPH0675430B2 JPH0675430B2 (en) | 1994-09-21 |
Family
ID=16554258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61208317A Expired - Lifetime JPH0675430B2 (en) | 1986-09-04 | 1986-09-04 | High frequency heating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0675430B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007120830A (en) * | 2005-10-27 | 2007-05-17 | Matsushita Electric Ind Co Ltd | High frequency heating device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52166853U (en) * | 1976-06-11 | 1977-12-17 |
-
1986
- 1986-09-04 JP JP61208317A patent/JPH0675430B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52166853U (en) * | 1976-06-11 | 1977-12-17 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007120830A (en) * | 2005-10-27 | 2007-05-17 | Matsushita Electric Ind Co Ltd | High frequency heating device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0675430B2 (en) | 1994-09-21 |
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