JPS60115206A - Iron core of electric apparatus - Google Patents

Abstract

PURPOSE:To save conductive material and enhance productivity by forming conductor which configurates a shading coil by the mig-welding of a conductor which forms a shading coil with a welding wire consisting of predetermined conductive material used as the electrode. CONSTITUTION:A shading coil 3 is formed in the following processes that the mig-welding is carried out in the parallel grooves 1a, 1b formed at the end surface of layered iron core 1 with a welding wire made of conductive material used as the electrode and then further carrying out the mig-welding to the end portions of conductors 3a, 3b fixed in the grooves 1a, 1b in order to form short- circuited annular shape. As said conductive material, copper, phosphor bronze or aluminum, etc. is generally used.

Description

【発明の詳細な説明】 〔発明の分野〕 この発明は電磁開閉器などの電気機器の鉄心。[Detailed description of the invention] [Field of invention] This invention is an iron core for electrical equipment such as electromagnetic switches.

とくに端部にくま取りコイルを備えた鉄心の改良に関す
るものである。In particular, it relates to improvements to iron cores with shaded coils at the ends.

〔従来の技術〕[Conventional technology]

第１図、第２図は従来の電磁開閉器の鉄心を示し１図に
おいて（１，１は積層された薄鋼板からなる鉄心、　（
１ａ）（１ｂ）は鉄心ｆｉ＋の端部に所定間隔をもって
形成された溝、（２）は溝（ｉａ）（１ｂ）に収容され
る導電材料からなるくま取りコイルである。Figures 1 and 2 show the iron core of a conventional electromagnetic switch.
1a and 1b are grooves formed at predetermined intervals at the ends of the iron core fi+, and 2 is a shaded coil made of a conductive material and accommodated in the grooves (ia) and 1b.

以上のように構成され、従来のくま取りコイル（２）は
帯状材料から打抜いたものを用いていたので使用される
材料が多く、また打抜かれたくま取りコイル（２）ヲ溝
（ｉａ）（１ｂ）に挿入した上、かしめる工程が必要で
あり、多くの材料費を必要とするとともに生産性が低い
欠点があった。Constructed as described above, the conventional darkening coil (2) was punched out of a strip of material, so a large amount of material was used, and the stamped darkening coil (2) had grooves (IA) ( 1b) and requires a caulking process, which has the disadvantage of requiring a large amount of material cost and low productivity.

〔発明の概要〕[Summary of the invention]

この発明は２以上のような従来のものの欠点を改善する
ことを目的とするもので、鉄心端面に所定間隔をもった
溝を設け、この溝内に所望の′４＄電材料からなる溶接
ワイヤを電極としてミグ溶接全行い、溝内に充填固着さ
れた導体の端部を短絡してくま取りコイルを形成した電
気機器の鉄心を供給するものである。The purpose of this invention is to improve the above two or more drawbacks of the conventional method. Grooves are provided at predetermined intervals on the end face of the iron core, and a welding wire made of a desired electrical material is inserted into the grooves. All MIG welding is performed using the conductor as an electrode, and the ends of the conductor filled and fixed in the groove are short-circuited to form a shaded coil to supply iron cores for electrical equipment.

〔発明の実施例〕[Embodiments of the invention]

以下、この発明の一実施例を第３図、第４図により説明
する。図において第１図１．第２図と同一符号は同一ま
たは相当部分を示し、（３）は積層鉄心（１）の端面に
形成された平行な溝（１ａ）（１ｂ）内に７３１ｉ望の
導電材料からなる溶接ワイヤを電極としてミグ溶接を行
い、溝（１ａ）（１ｂ）内に充填固着された導体（５ａ
）（３ｂ）の端部をさらにミグ溶接により短絡して環状
に形成されたくま取りコイルである。An embodiment of the present invention will be described below with reference to FIGS. 3 and 4. In Figure 1.1. The same reference numerals as in Fig. 2 indicate the same or equivalent parts, and (3) shows a welding wire made of a 731i conductive material in parallel grooves (1a) and (1b) formed on the end face of the laminated core (1). MIG welding was performed as electrodes, and conductors (5a) were filled and fixed in the grooves (1a) and (1b).
) (3b) is further short-circuited by MIG welding to form a ring-shaped coil.

なお、導電材料としては通常、銅９燐青銅、アルミニウ
ム等が用いられる。Note that copper-9-phosphor bronze, aluminum, or the like is usually used as the conductive material.

〔発明の効果〕〔Effect of the invention〕

以上のように、この発明はくま取りコイルを構成する導
電体を所望の導電材料からなる溶接ワイヤを電極とした
ミグ溶接により形成するようにしたので、導電材料の無
駄がなく、またくま取りコイルを鉄心端面の溝に挿入し
かしめ加工をする必要もなく、安価で生産性のすぐれた
電気機器の鉄心を提供することができる。As described above, in this invention, the conductor constituting the shaded coil is formed by MIG welding using a welding wire made of a desired conductive material as an electrode, so there is no waste of conductive material, and the shaded coil There is no need to insert the iron core into the groove on the end face of the iron core, and it is possible to provide an iron core for electrical equipment that is inexpensive and has excellent productivity.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図、第２図は従来例を示す正面図および側面図、第
３図、第４図のこの発明の一実施例を示す正面図および
側面図である。 図において、同一符号は同一または相当部分を示し、（
ｌ）は鉄心、　（１ａ）（ｌｂ）は溝、（３）はくま取
りコイル、　（３ａ）（５ｂ）は導体である。 代理人　大　岩　増　雄　（ほか２名）第１図 笛２図 第４図1 and 2 are a front view and a side view showing a conventional example, and FIGS. 3 and 4 are a front view and a side view showing an embodiment of the present invention. In the figures, the same reference numerals indicate the same or equivalent parts, (
l) is the iron core, (1a) and (lb) are the grooves, (3) is the shaded coil, and (3a) and (5b) are the conductors. Agent: Masuo Oiwa (and 2 others) Figure 1, flute 2, figure 4

Claims (1)

【特許請求の範囲】[Claims] 積層鉄心の端面に所定間隔をもって平行な溝を設け、こ
の溝内に所望の導電材料からなる溶接ワイヤを電極とし
てミグ溶接を行い、上記溝内に充填された導体の端部を
ミグ溶接により短絡し、環状のくま取りコイルを形成し
て構成されたことを特徴とする電気機器の鉄心。Parallel grooves are provided at predetermined intervals on the end face of the laminated core, MIG welding is performed in these grooves using a welding wire made of a desired conductive material as an electrode, and the ends of the conductors filled in the grooves are short-circuited by MIG welding. An iron core for electrical equipment, characterized in that it is configured by forming an annular shaded coil.