JPS6025877Y2 - Molded welding transformer - Google Patents
Molded welding transformerInfo
- Publication number
- JPS6025877Y2 JPS6025877Y2 JP17816379U JP17816379U JPS6025877Y2 JP S6025877 Y2 JPS6025877 Y2 JP S6025877Y2 JP 17816379 U JP17816379 U JP 17816379U JP 17816379 U JP17816379 U JP 17816379U JP S6025877 Y2 JPS6025877 Y2 JP S6025877Y2
- Authority
- JP
- Japan
- Prior art keywords
- coil
- molded
- stator
- synthetic resin
- storage case
- 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
Links
Landscapes
- Coils Of Transformers For General Uses (AREA)
- Insulating Of Coils (AREA)
Description
【考案の詳細な説明】
本考案は、モールド成型溶接トランスの構造に関するも
のである。[Detailed Description of the Invention] The present invention relates to the structure of a molded welding transformer.
モールド成型溶接トランスは、一般に、1次コイルと2
次コイルを、交互に絶縁物を配して積層し、その積層コ
イルの外周面を合成樹脂モールド材によりモールド成型
し、これに鉄心を装着した状態で金属薄鋼板の収納ケー
ス内に収納せしめたもので、抵抗溶接機等に使用される
。Molded welding transformers generally have a primary coil and a secondary coil.
Next, the coils were laminated with insulators arranged alternately, the outer peripheral surface of the laminated coil was molded with a synthetic resin molding material, and the core was attached to the laminated coil and stored in a storage case made of thin metal sheet. It is used in resistance welding machines, etc.
モールド成型コイルは、前記の積層コイルの外周面を絶
縁する目的で合成樹脂モールド材によりモールド成型す
るが、通常このモールドの厚みは、材料費の節減を兼ね
て絶縁に必要な最小の厚みとするのが好ましい。Molded coils are molded with a synthetic resin molding material for the purpose of insulating the outer peripheral surface of the laminated coil, but the thickness of this molding is usually the minimum thickness necessary for insulation in order to reduce material costs. is preferable.
従来、モールド成型コイルのモールドの厚さは、モール
ド成型用金型と積層コイルとの間に形成した隙間によっ
て保持される。Conventionally, the thickness of a molded coil is maintained by a gap formed between a molding die and a laminated coil.
通常、積層コイルの外周に必要なモールド肉厚を得るに
は、上記金型内に積層コイルを配置するときに、積層コ
イルの両側所定位置すなわち両側の四隅に、モールド材
と同−組成の短かい硬質絶縁物小片を配置し、この硬質
絶縁物小片の板厚によって形成される隙間、すなわちモ
ールドの肉厚となる上記金型と積層コイルとの間に形成
された空間に、モールド材を注入し、硬質絶縁物小片と
共に積層コイル全体を一体にモールド成型するのが知ら
れている。Normally, in order to obtain the required mold thickness around the outer periphery of the laminated coil, when placing the laminated coil in the mold, place short strips of the same composition as the molding material at predetermined positions on both sides of the laminated coil, that is, at the four corners of both sides. A small piece of hard insulator is placed, and a molding material is injected into the gap formed by the thickness of the small piece of hard insulator, that is, the space formed between the mold and the laminated coil, which is the thickness of the mold. However, it is known to integrally mold the entire laminated coil together with a small piece of hard insulator.
また、上記モールド成型コイルを収納ケース内に固定す
る場合は、モールド成型コイルに鉄心を装着した後、こ
れを収納ケースに納め、収納ケースの外側から上記硬質
絶縁物小片に対応する位置に設けた複数の支持ボルトを
螺着・挿入して、各支持ボルトの先端を、上記モールド
にて埋設した各硬質絶縁物小片にそれぞれ当接させ、モ
ールド成型コイルをケース内で動かぬよう堅く固定する
事が知られている。In addition, when fixing the above-mentioned molded coil in a storage case, after attaching the iron core to the molded coil, place it in the storage case, and install it from the outside of the storage case at a position corresponding to the above-mentioned hard insulator small piece. Screw and insert multiple support bolts so that the tip of each support bolt comes into contact with each small piece of hard insulator buried in the mold, and firmly fix the molded coil so that it does not move within the case. It has been known.
また、従来は、モールド成型コイルを前記収納ケースに
螺着した支持ボルトの先端を硬質絶縁物小片に当接させ
て位置固定しているが、支持ボルトの先端(小面積)で
、硬質絶縁物小片に大きな面圧をかけて当接するため、
合成樹脂モールド材と同−組成の硬質絶縁物小片は強い
面圧に耐えられず沈んだり、時には溶接トランスの使用
通電時に起る電磁反発力による強い振動等によってモー
ルド成型コイルがずれたりして、思わぬ事故を誘発する
事があった。Conventionally, the molded coil is screwed into the storage case, and the tip of the support bolt is brought into contact with a small piece of hard insulator to fix the position. Because it comes into contact with a small piece by applying a large surface pressure,
Small pieces of hard insulators with the same composition as the synthetic resin molding material cannot withstand strong surface pressure and may sink, and sometimes the molded coil may shift due to strong vibrations caused by electromagnetic repulsion that occurs when electricity is applied to a welding transformer. This could lead to an unexpected accident.
本考案は、上記の欠点を解決するためのもので、その要
旨とするところは、互いに電気的に絶縁した状態で積層
した1次コイルと2次コイルとを、合成樹脂モールド材
にて成型し、その成型したモールド成型コイルに鉄心を
装着して、これを収納ケースに納めた溶接用トランスに
おいて、上記モールド成型コイルの両面に、モールドに
て埋設された所要長さと幅を有する硬質合成樹脂固定子
と、その固定子の所定位置に当接して埋設された当金具
とを有し、また上記モールド成型コイルを所定位置に収
納するための収納ケースには、上記当金具の凹部に先端
を嵌入して、上記モールド成型コイルを挾持する支持ボ
ッ叶を装設したところにある。The present invention is intended to solve the above-mentioned drawbacks, and its gist is to mold a primary coil and a secondary coil, which are electrically insulated from each other and stacked, using a synthetic resin molding material. In a welding transformer in which an iron core is attached to the molded coil and this is housed in a storage case, hard synthetic resin fixing having the required length and width is embedded in both sides of the molded coil with a mold. A storage case for storing the molded coil in a predetermined position includes a stator and a stopper that is buried in contact with a predetermined position of the stator, and a storage case for storing the molded coil in a predetermined position. Then, a support bracket is installed to hold the molded coil.
以下、本考案にかかるトランスの実施例を図面に基づい
て詳細に説明する。Embodiments of the transformer according to the present invention will be described in detail below with reference to the drawings.
なお、第1図は、本考案の溶接トランス全体を示す斜視
図であって、内部構造を明らかにするため、一部破砕断
面を表わし、又第2図は、第1図のA−A’矢視断面を
示す。In addition, FIG. 1 is a perspective view showing the entire welding transformer of the present invention, and a partially broken cross section is shown to clarify the internal structure, and FIG. 2 is a perspective view showing the entire welding transformer of the present invention, and FIG. A cross section is shown.
上記の図面に示す如く、1次コイル1と2次コイル2は
、絶縁物3・・・を介して交互に積み重ねられる。As shown in the above drawings, the primary coil 1 and the secondary coil 2 are alternately stacked with insulators 3 interposed therebetween.
その積層コイルの両面には、合成樹脂モールド材4と同
−組成の硬質合成樹脂固定子5が配置されている。Hard synthetic resin stators 5 having the same composition as the synthetic resin molding material 4 are arranged on both sides of the laminated coil.
この固定子5は、コイル外周の各長辺とほぼ等しい長さ
と幅を有するものである。This stator 5 has a length and width approximately equal to each long side of the outer periphery of the coil.
上記固定子5を配置した積層コイル両面には、先端に凹
部を有する当金具6が、上記固定子の後述する支持ボル
トこ対応する位置(四隅)に、それぞれ配置されている
。On both sides of the laminated coil on which the stator 5 is arranged, abutment fittings 6 having concave portions at their tips are respectively arranged at positions (four corners) corresponding to support bolts to be described later of the stator.
この当金具6は、真鍮などの材料から作られ、積層コイ
ルと共に合成樹脂モールド材にて埋設される。This fitting 6 is made of a material such as brass, and is embedded together with the laminated coil in a synthetic resin molding material.
鉄心7は通常二つ割り構造になっていてモールド成型コ
イルに装着され締付バンドで固定されている。The iron core 7 usually has a two-piece structure, and is attached to a molded coil and fixed with a tightening band.
鉄心を備えたモールド成型コイルは、薄い鋼板から作ら
れた収納ケース8に収納され、収納ケースの両側から上
記当金具6と対応する位置にそれぞれ螺着、挿入した支
持ボルト9の先端を、当金具6の凹部に挿入して堅く締
付けられる。The molded coil with an iron core is stored in a storage case 8 made of a thin steel plate, and the ends of support bolts 9 screwed and inserted from both sides of the storage case into positions corresponding to the abutment fittings 6 are inserted into the abutment fittings 6. It is inserted into the recess of the metal fitting 6 and tightly tightened.
次に、第3図及び第4図は、本考案にかかるトランスの
モールド成型過程におけるモールド成型用金型と積層コ
イルとの組付は状態を示す断面図である。Next, FIGS. 3 and 4 are cross-sectional views showing how the molding die and the laminated coil are assembled in the process of molding the transformer according to the present invention.
積層コイルの外周をモールド成型するとき、第3図、第
4図に示す如く、モールド成型用金型が用意される。When molding the outer periphery of the laminated coil, a molding die is prepared as shown in FIGS. 3 and 4.
このモールド成型用金型は、下金型11と上金型12と
に2分割されたものである。This molding die is divided into two parts, a lower die 11 and an upper die 12.
これら上、下金型12.11には、積層コイルの外周面
の絶縁に必要な最小厚み、すなわち、後述するモールド
肉厚に相当する隙間e1と積層コイル外周寸法を加算し
た船底形のコイル収容部が形成されている。These upper and lower molds 12 and 11 accommodate a ship bottom-shaped coil that has the minimum thickness required for insulating the outer peripheral surface of the laminated coil, that is, the sum of the outer circumferential dimension of the laminated coil and a gap e1 corresponding to the mold wall thickness described later. A section is formed.
今、積層コイルをその両面に硬質合成樹脂固定子5と当
金具6を配置した状態で下金型11の内側に収容し、こ
れら金型11.12をもなか形に組合せてその金型胴周
縁に設けた締付ボルト10を当金具の凹部に嵌入し、締
付は固定すると、上、下金型のコイル収容部と積層コイ
ル外周面との間には、金型の内壁が硬質合成樹脂固定子
6の表面に接したところでモールドの肉厚に相当する隙
間e1が形成される。Now, the laminated coil is housed inside the lower mold 11 with the hard synthetic resin stator 5 and the metal fittings 6 arranged on both sides, and these molds 11 and 12 are assembled in a middle shape and the periphery of the mold body is When the tightening bolt 10 provided at A gap e1 corresponding to the thickness of the mold is formed at a location where the stator 6 is in contact with the surface thereof.
かくして、この空間e1に合成樹脂モールド液を注入し
、各当金具6の周囲に形成された間隙14にもモールド
液を充填させ、積層コイルの外周、硬質合成樹脂固定子
5及び当金具6等を同時にモールドにて固める。In this way, the synthetic resin molding liquid is injected into this space e1, and the gap 14 formed around each stopper 6 is also filled with the molding liquid, so that the outer periphery of the laminated coil, the hard synthetic resin stator 5, the stopper 6, etc. At the same time, harden in a mold.
モールド成型後、金型から取出したモールド成型コイル
に、前述したように鉄心7を装着した後、収納ケース8
の中に位置固定する。After molding, the iron core 7 is attached to the molded coil taken out from the mold as described above, and then placed in the storage case 8.
Fixed position inside.
この場合、収納ケース8の所定位置、すなわち各当金具
6と対応する四隅に螺着、挿入した支持ボルト9を、モ
ールド成型コイルに埋設された各当金具6の凹部に嵌入
させて堅く締付けることによって収納ケース内のコイル
を確実に支持することができる。In this case, the support bolts 9 screwed and inserted into predetermined positions of the storage case 8, that is, the four corners corresponding to each of the metal fittings 6, are inserted into the recesses of each of the metal fittings 6 embedded in the molded coil and tightened firmly. This makes it possible to reliably support the coil inside the storage case.
以上、詳述したように、本考案によれば、モールド成型
に先がけて積層コイルの外周各長辺に、絶縁に必要とす
る最小厚の合成樹脂モールド材と同−組成の、所要長さ
と幅をもつ硬質合成樹脂固定子を配置して、更に上記固
定子の所定位置に当金具を当接した状態で積層コイル外
周を同時にモールド、したものであるから、収納ケース
の両側から螺着・挿入した支持ボルトを上記固定子に当
接した当金具の凹部の嵌入させた状態で締付けることが
できるので、モールド成型コイルを収納ケース内の所定
位置で強固に支持することができ、事故発生要因の一つ
である溶接トランスの通電使用時の電磁反発力の強振動
に対しても充分対応することができるなどの作用効果を
有する。As described in detail above, according to the present invention, prior to molding, each long side of the outer periphery of the laminated coil is coated with the required length and width of a synthetic resin molding material having the same composition as the minimum thickness of the synthetic resin molding material required for insulation. The outer periphery of the laminated coil is molded at the same time with a hard synthetic resin stator placed in the stator and a metal fitting in contact with a predetermined position of the stator, so it can be screwed and inserted from both sides of the storage case. Since the support bolt can be tightened while being fitted into the recess of the abutment fitting that abuts the stator, the molded coil can be firmly supported at a predetermined position within the storage case, reducing the risk of accidents. It has the effect of being able to sufficiently cope with strong vibrations of electromagnetic repulsion when a welding transformer is energized.
第1図は、本考案のモールド成型溶接トランスの一例で
、破砕断面を含む斜視図。
第2図は第1図A−A’矢視図。
第3図は本考案トランスのモールド成型過程における説
明のための、モールド戊型金型と積層コイルの組付は状
態を示す断面図。
第4図は、第3図B−B矢視図である。符号の説明、1
・・・・・・1次コイル、2・・・・・・2次コイル、
3・・・・・・絶縁板、4・・・・・・合成樹脂モール
ド材、5・・・・・・硬質合成樹脂固定子、6・・・・
・・当金具、7・・・・・・鉄心、8・・・・・・収納
ケース、9・・・・・・支持ボルト。FIG. 1 is a perspective view including a fractured cross section of an example of the molded welding transformer of the present invention. FIG. 2 is a view taken along the line A-A' in FIG. FIG. 3 is a sectional view illustrating the state of assembly of the hollow mold and the laminated coil for explanation of the molding process of the transformer of the present invention. FIG. 4 is a view taken along the line BB in FIG. 3. Explanation of symbols, 1
...Primary coil, 2...Secondary coil,
3...Insulating plate, 4...Synthetic resin mold material, 5...Hard synthetic resin stator, 6...
...Metal fitting, 7...Iron core, 8...Storage case, 9...Support bolt.
Claims (1)
次コイルとを、合成樹脂モールド材にて成型し、その成
型したモールド成型コイルに鉄心を装着して、これを収
納ケースに収納せしめた溶接用トランスにおいて、上記
モールド成型コイルの両面に、モールドにて埋設された
所要長さと幅を有する硬質合成樹脂固定子と、その固定
子の所定位置に当接して埋設された当金具とを有し、ま
た上記モールド成型コイルを所定位置に収納するための
収納ケースには、上記当金具の凹部に先端を嵌入して、
上記モールド成型コイルを挾持する支持ボルトを装設し
てなるモールド成型溶接トランス。The primary coil and the secondary coil are stacked electrically insulated from each other.
In a welding transformer in which the next coil is molded with a synthetic resin molding material, an iron core is attached to the molded coil, and this is stored in a storage case, molds are placed on both sides of the molded coil. A hard synthetic resin stator having a required length and width is embedded in the stator, and a metal fitting is embedded in contact with the stator at a predetermined position, and the molded coil is stored in a predetermined position. Insert the tip into the recess of the above metal fitting into the storage case,
A molded welding transformer equipped with support bolts that clamp the molded coil.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17816379U JPS6025877Y2 (en) | 1979-12-22 | 1979-12-22 | Molded welding transformer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17816379U JPS6025877Y2 (en) | 1979-12-22 | 1979-12-22 | Molded welding transformer |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5696615U JPS5696615U (en) | 1981-07-31 |
JPS6025877Y2 true JPS6025877Y2 (en) | 1985-08-03 |
Family
ID=29688714
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17816379U Expired JPS6025877Y2 (en) | 1979-12-22 | 1979-12-22 | Molded welding transformer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6025877Y2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR200457299Y1 (en) | 2010-02-04 | 2011-12-13 | 한국광성전자 주식회사 | Insulating structure for transformer |
-
1979
- 1979-12-22 JP JP17816379U patent/JPS6025877Y2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5696615U (en) | 1981-07-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8860542B2 (en) | Reactor, reactor manufacturing method, and reactor component | |
US20130222100A1 (en) | Reactor | |
KR850007525A (en) | Manufacturing method of transformer | |
US7880360B2 (en) | Stator assembly | |
US4866409A (en) | Resin-crack prevented high-voltage transformer | |
JPS6025877Y2 (en) | Molded welding transformer | |
JP3469016B2 (en) | Dry transformer | |
JPH10106871A (en) | Current transformer | |
JPS6329809B2 (en) | ||
JPH0750861Y2 (en) | Excitation coil of magnet generator | |
JPS5923390Y2 (en) | Molded choke coil | |
JPS6141215Y2 (en) | ||
JPS6233290Y2 (en) | ||
JPH0214186Y2 (en) | ||
JPS62219607A (en) | High-voltage transformer | |
JPS5814596Y2 (en) | molded transformer | |
JPS6151810A (en) | Resin mold coil | |
JPS58285Y2 (en) | ignition coil device | |
JPH0754988Y2 (en) | Primary conductor for gas insulated current transformer | |
JPS605528Y2 (en) | Molded coil terminal device | |
JPS6112662Y2 (en) | ||
JPH032328B2 (en) | ||
JPS6020897Y2 (en) | dry type transformer | |
JPS5846046B2 (en) | transformer | |
JPH019140Y2 (en) |