JP4568037B2 - High frequency starter structure in power supply for welding machine - Google Patents
High frequency starter structure in power supply for welding machine Download PDFInfo
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- JP4568037B2 JP4568037B2 JP2004184133A JP2004184133A JP4568037B2 JP 4568037 B2 JP4568037 B2 JP 4568037B2 JP 2004184133 A JP2004184133 A JP 2004184133A JP 2004184133 A JP2004184133 A JP 2004184133A JP 4568037 B2 JP4568037 B2 JP 4568037B2
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- circuit unit
- oscillation circuit
- recess
- high frequency
- power supply
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- 239000007858 starting material Substances 0.000 title claims description 13
- 238000003466 welding Methods 0.000 title claims description 13
- 230000010355 oscillation Effects 0.000 claims description 22
- 229920005989 resin Polymers 0.000 claims description 9
- 239000011347 resin Substances 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 4
- 239000000945 filler Substances 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000003822 epoxy resin Substances 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- 229920002050 silicone resin Polymers 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Images
Landscapes
- Arc Welding Control (AREA)
- Generation Of Surge Voltage And Current (AREA)
Description
本発明は,溶接機用等の電源装置における高周波スタータ構造体に関するものである。 The present invention relates to a high-frequency starter structure in a power supply device for a welding machine or the like.
高周波電力を溶接電流に重畳させてアーク溶接をスタートさせる溶接機用電源装置においては,高周波電力生成手段を高周波スタータ構造体と呼んでいて、溶接機用電源装置にコンパクトに収容でき電気的に安全な部品として、例えば図2に示すような構造体にしている。 In a power supply device for a welding machine that starts arc welding by superimposing high-frequency power on the welding current, the high-frequency power generation means is called a high-frequency starter structure, and it can be accommodated in the power supply device for the welder in a compact manner and is electrically safe. For example, a structure as shown in FIG.
前記電気絶縁性の合成物である充填材4は熱伝導性が0.2×kcal/mh℃程度のものが多い。長時間通電していると高周波コイル2の熱が制御発振回路ユニット3に伝わって行く。制御発振回路ユニット3は温度の変化による周波数の変化を抑えたいので、高周波コイルの発熱によって温度が上昇するのを避けることが要求される。一方、この高周波生成構造体は出来るだけコンパクトに形成されることが求められていて、高周波コイル2と制御発振回路ユニット3との間隔Lを長い寸法にしないで解決したい。 The filler 4 which is an electrically insulating composite has a thermal conductivity of about 0.2 × kcal / mh ° C. in many cases. When energized for a long time, the heat of the high frequency coil 2 is transmitted to the control oscillation circuit unit 3. Since the control oscillation circuit unit 3 wants to suppress a change in frequency due to a change in temperature, it is required to avoid an increase in temperature due to heat generated by the high frequency coil. On the other hand, this high-frequency generating structure is required to be formed as compact as possible, and it is desired to solve this problem without making the distance L between the high-frequency coil 2 and the control oscillation circuit unit 3 long.
高周波コイルと制御発振回路の間隔Lを短い寸法で熱伝導を抑えることが要求されている。この構造体の充填材の熱伝導を抑えることである。しかも、電気絶縁と両立させることが必要でコンパクトに構成することである。製作コストを抑えて安価に提供できるようにする事もこの発明の目的である。 It is required to suppress heat conduction with a short distance L between the high-frequency coil and the control oscillation circuit. The heat conduction of the filler of this structure is to be suppressed. And it is necessary to make it compatible with electrical insulation, and it is to constitute compactly. It is also an object of the present invention to enable the production cost to be reduced and to be provided at a low cost.
間隔Lを短い寸法で熱伝導を抑えることが要求されている。合成樹脂と空気の熱伝導率の違いに着目した。例えばフェノール樹脂は空気の熱伝導率の10倍である。エポキシ樹脂は空気の20倍の熱伝導率を有する(機械工学便覧;日本機械学会、および、プラスチックハンドブック;朝倉書店による)ので、間隔寸法を空気にすれば10分の1、20分の1に短縮できることに着目した。 It is required to suppress heat conduction with a short distance L. We focused on the difference in thermal conductivity between synthetic resin and air. For example, phenolic resin is 10 times the thermal conductivity of air. Epoxy resin has a thermal conductivity 20 times that of air (Mechanical Engineering Handbook; The Japan Society of Mechanical Engineers and Plastic Handbook; Asakura Shoten). We paid attention to the fact that it can be shortened.
製作コストを抑えて提供することがもう一つの課題であるから、コイルと制御発振回路ユニットとを独立したケースにモールド樹脂で充填することと、製作工数の増加を避けて解決することを両立させる、この2つの命題に対する解としては、構造体を、「ケースの中間部位に空気断熱層を形成させること、を特徴とする構造体」にすることである。 Since it is another issue to provide at a low manufacturing cost, both the filling of the coil and the control oscillation circuit unit with a mold resin in an independent case and the solution by avoiding an increase in manufacturing man-hours are achieved. The solution to these two propositions is to make the structure “a structure characterized by forming an air heat insulating layer at an intermediate portion of the case”.
請求項1に関しては、
第1の窪みと第2の窪みを有するケースに、高周波コイルと制御発振回路ユニットを個別に、各窪みに埋め込んで、各窪みに対してモールド樹脂で充填し、発熱部である高周波コイルと制御発振回路ユニットとの最短距離間に空気断熱層を形成したことを特徴とする高周波スタータ構造体とした。
請求項2に関しては、
第1の窪みと第2の窪みを有する一つのケースに、高周波コイルと制御発振回路ユニットを個別に各窪みに埋め込んでモールド樹脂で充填し、印刷配線板で高周波コイルと制御発振回路ユニットとを電気接続して、発熱部である高周波コイルと制御発振回路ユニットとの間に空気断熱層を楔型に形成したことを特徴とする高周波スタータ構造体とした。
請求項3に関しては、
第1 の窪みと第2 の窪みを有するケースに、高周波コイルと制御発振回路ユニットを個別に、各窪みに埋め込んで、充填最上部位は連結した形状にモールド樹脂で充填し、発熱部である高周波コイルと制御発振回路ユニットとの間に空気断熱層を楔型に形成したことを特徴とする高周波スタータ構造体とした。
Regarding
A high frequency coil and a control oscillation circuit unit are individually embedded in each recess in a case having a first recess and a second recess, and each recess is filled with a mold resin, and the high frequency coil that is a heat generating portion is controlled. An air heat insulating layer was formed between the shortest distance from the oscillation circuit unit to obtain a high frequency starter structure.
Regarding claim 2,
The high frequency coil and the control oscillation circuit unit are individually embedded in each depression and filled with mold resin in one case having the first depression and the second depression, and the high frequency coil and the control oscillation circuit unit are printed with a printed wiring board. and electrical connection, and a high frequency starter structure characterized by the formation of the insulating air layer in the wedge between the high-frequency coil is a heat generating portion and the control oscillator circuit unit.
Regarding claim 3,
A high frequency coil and a controlled oscillation circuit unit are individually embedded in each recess in a case having a first recess and a second recess, and the uppermost filling portion is filled with a mold resin in a connected shape, and a high frequency which is a heat generating portion An air heat insulating layer was formed in a wedge shape between the coil and the control oscillation circuit unit to obtain a high-frequency starter structure.
本発明の高周波スタータ構造体は熱伝導の為に絶縁材の厚み方向に寸法を大きくするのを避けて、外形をコンパクトにまとめることができる。充填最上部位は連結した形状に、モールド樹脂で充填したことによって充填作業工程が短縮され、性能は劣らない効果がある。 The high-frequency starter structure according to the present invention can reduce the size in the thickness direction of the insulating material for heat conduction, and can compact the outer shape. Filling the uppermost portion of the filling into a connected shape with the mold resin shortens the filling operation process, and has an effect that the performance is not inferior.
図1は本発明の実施の形態を示す構造図である。この図に従って説明する。ケース1は第1の窪み8と第2の窪み9とを空気断熱層7を挟む形状にエポキシ樹脂、フェノール樹脂などの電気絶縁物で形成されている。例えば第1の窪み8には制御発振回路ユニット3を、第2の窪み9には高周波コイル2を、シリコーン樹脂などの充填材4で埋め込まれている。充填される電気部位の接続端子5が溶接電源装置の制御部などを形成する印刷配線板6に開けられた孔に挿入されて半田付けされ装着される。充填材4は第1の窪み8と第2の窪み9に対して流し込まれて楔型の空気断熱層で区切られた二つの窪みを満たして、更に最上部位まで満たして最上部位で繋がってしまうまで満たした方が、途中で止めるよりも作業工程が単純化されて能率があがるが、どちらの場合も性能は同等である。
FIG. 1 is a structural diagram showing an embodiment of the present invention. This will be described with reference to this figure. The
前記二つの窪みの充填材上面に水平面の差が生じたときは、充填不足が生じないように充填量管理をすることが、1つのケースに対して2回必要になってくる。 When there is a difference in horizontal plane between the upper surfaces of the fillers in the two depressions, it is necessary to manage the filling amount twice so as not to cause insufficient filling.
前記二つの窪みの中、一方の窪み8の上方に充填機のノズルを配置して充電する工程の終末段階に、もう一つの窪み9に充填材がオーバーフローして充填を進行して行く。窪み9の充填終末期に、窪み8の充填上面と同等になって二つの窪みの充填最上部位が繋がったときを、充填ストップの時点として工程管理するならば、どちらの窪みにも充填不足が生じないので有効である。 At the final stage of the charging process in which the nozzle of the filling machine is disposed above one of the two depressions and charged, the filling material overflows into the other depression 9 and the filling proceeds. If process control is performed when the uppermost filling portion of the two depressions is connected at the end of filling of the depression 9 and the filling uppermost part of the two depressions is connected, there is insufficient filling in either depression. It is effective because it does not occur.
このように,ケース1の形状を窪み二つ連結した容器構造にした為,各窪み毎に独立した二つのケースで一セットにする場合より、ケース成型加工の工数が全体として短縮され、また在庫管理にも部品点数が削減されたので、管理工数が削減できる効果がある。溶接電源装置の制御部などを形成する印刷配線板6に組み付ける場合にも二つのケース構造にする場合より、コンパクトにまとめることができた。
In this way, since the
本発明による高周波スタータ構造体を溶接用電源装置に組み込むときは、狭い電源装置筐体の空間にも収容できて全体としてコンパクトな溶接用電源となるから、溶接現場での扱いが容易になる。工数の削減で、製作コストの削減にも寄与でき安価に提供できるので工業価値が高く、省資源にも貢献できた。 When the high-frequency starter structure according to the present invention is incorporated in a welding power source device, it can be accommodated in a narrow power source device housing space, and the overall power source becomes a compact welding power source, which facilitates handling at the welding site. The reduction in man-hours contributed to the reduction of production costs and the provision of these products at a low cost, which has high industrial value and contributed to resource saving.
1 ケース
2 高周波コイル
3 制御発振回路ユニット
4 充填材
5 接続端子
6 印刷配線板
7 空気断熱層
8 第1の窪み
9 第2の窪み
DESCRIPTION OF
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JP4568037B2 true JP4568037B2 (en) | 2010-10-27 |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5675577U (en) * | 1979-11-09 | 1981-06-20 | ||
JPS5978622U (en) * | 1982-11-19 | 1984-05-28 | 株式会社三陽電機製作所 | High voltage generator |
JPS6138895U (en) * | 1984-08-09 | 1986-03-11 | 日本特殊陶業株式会社 | Boosting device for discharge |
JPH0760442A (en) * | 1993-08-30 | 1995-03-07 | Sansha Electric Mfg Co Ltd | Power supply device for arc welding |
JP2004119352A (en) * | 2002-09-30 | 2004-04-15 | Sansha Electric Mfg Co Ltd | Spark gap device of high-voltage power-supply unit |
-
2004
- 2004-06-22 JP JP2004184133A patent/JP4568037B2/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5675577U (en) * | 1979-11-09 | 1981-06-20 | ||
JPS5978622U (en) * | 1982-11-19 | 1984-05-28 | 株式会社三陽電機製作所 | High voltage generator |
JPS6138895U (en) * | 1984-08-09 | 1986-03-11 | 日本特殊陶業株式会社 | Boosting device for discharge |
JPH0760442A (en) * | 1993-08-30 | 1995-03-07 | Sansha Electric Mfg Co Ltd | Power supply device for arc welding |
JP2004119352A (en) * | 2002-09-30 | 2004-04-15 | Sansha Electric Mfg Co Ltd | Spark gap device of high-voltage power-supply unit |
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