JPS6119096B2 - - Google Patents
Info
- Publication number
- JPS6119096B2 JPS6119096B2 JP17795380A JP17795380A JPS6119096B2 JP S6119096 B2 JPS6119096 B2 JP S6119096B2 JP 17795380 A JP17795380 A JP 17795380A JP 17795380 A JP17795380 A JP 17795380A JP S6119096 B2 JPS6119096 B2 JP S6119096B2
- Authority
- JP
- Japan
- Prior art keywords
- core
- coil
- view
- inner core
- ballast
- 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
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 230000000694 effects Effects 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Description
【発明の詳細な説明】
本発明は、放電灯用の塞流線輪型安定器或は漏
洩変圧器型安定器その他の変圧器等の電磁鉄心に
係り、小型で、鉄損及び銅損が少なく、且つ冷却
効果のよい電磁装置を得ることを目的とするもの
である。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electromagnetic core for a blockage ring type ballast, a leaky transformer type ballast, or other transformers for discharge lamps, which is small and has low iron loss and copper loss. The purpose of this invention is to obtain an electromagnetic device with a small amount of heat and a good cooling effect.
第１図は本発明による放電灯用安定器の一実施
例を示すもので、同図ａは側断面図、ｂはそのＸ
−Ｘ線における断面図であり、第２図はその一部
の斜視図ａと鋼板の斜視図ｂである。これらの図
において、１と２は上下に分割された１対のつぼ
形鉄心で各鉄心１と２は第２図ｂに示すように一
方の端部が薄く、反対側の端部が厚い断面が三角
形状の薄鋼板３を、薄い方の端部を内側にして放
射状に積層して形成され、各鋼板３は出来上つた
つぼ形鉄心１及び２のコイル挿入用溝４を形成す
る溝４′と、内側鉄心５の直径の1/2の巾の片５′
及び外側鉄心６を形成する片６′から成るコの字
形をなし、内側鉄心５に空隙７を形成するため、
内側の片５′の高さh1は外側の片６′の高さh2より
やや短く形成されている。このようにして鋼板３
を放射状に積層してできた１対のつぼ形鉄心１の
円筒形の溝４にコイル８を挿入し、これに他方の
つぼ形鉄心２を向い合わせに重ねて、内側鉄心５
に空隙７を有し、コイルの外側の全周が外側鉄心
６で囲まれた安定器が形成される。 Fig. 1 shows an embodiment of a ballast for a discharge lamp according to the present invention, in which a is a side sectional view and b is a cross-sectional view thereof.
- It is a sectional view along the X-ray, and FIG. 2 is a perspective view a of a part thereof and a perspective view b of a steel plate. In these figures, 1 and 2 are a pair of pot-shaped cores divided into upper and lower parts, and each core 1 and 2 has a cross section where one end is thin and the opposite end is thick, as shown in Figure 2b. is formed by stacking triangular thin steel plates 3 radially with their thinner ends inward, and each steel plate 3 has a groove 4 that forms the coil insertion groove 4 of the finished crucible-shaped cores 1 and 2. ', and a piece 5' with a width of 1/2 of the diameter of the inner core 5.
and a piece 6' forming the outer core 6, forming a U-shape, and forming a void 7 in the inner core 5,
The height h 1 of the inner piece 5' is slightly shorter than the height h 2 of the outer piece 6'. In this way, the steel plate 3
A coil 8 is inserted into the cylindrical groove 4 of a pair of pot-shaped cores 1 made by laminating the two pot-shaped cores 1 in a radial manner, and the other pot-shaped core 2 is placed on top of the inner core 5 facing each other.
A ballast is formed in which the coil has an air gap 7 and the entire outer circumference of the coil is surrounded by an outer iron core 6.
第３図は、積層する薄鋼板３の断面を梯形に形
成し、これを放射状に積層した時、内側鉄心５の
中央部に上下に貫通する穴９が形成されるように
した本発明の他の実施例である。このようにする
と、内側鉄心の中央部に穴があるため、鋼板３の
積み重ね作業が容易で、且つ穴９を通して空気が
環流し、内側鉄心の冷却効果を上げることができ
る利点が得られる。 FIG. 3 shows another embodiment of the present invention in which the thin steel plates 3 to be laminated are formed to have a trapezoidal cross section, and when these are laminated radially, a hole 9 passing vertically is formed in the center of the inner core 5. This is an example. In this case, since there is a hole in the center of the inner core, it is easy to stack the steel plates 3, and air circulates through the hole 9, which improves the cooling effect of the inner core.
従来の安定器或は変圧器の鉄心は、第４図に示
すように均一な厚みの薄鋼板を所要形状に切断し
たものを積層して、断面が四角形の内側鉄心１１
と外側鉄心１２を形成し、内側鉄心１１と外側鉄
心１２の間にコイル１３を巻回して構成されてい
る。 The core of a conventional ballast or transformer is made by laminating thin steel plates of uniform thickness cut into a desired shape to form an inner core 11 with a square cross section, as shown in Figure 4.
and an outer core 12, and a coil 13 is wound between the inner core 11 and the outer core 12.
本発明の鉄心をこのような従来の鉄心に比べる
と、
１ 内側鉄心が円筒形であるため、同じ断面積の
四角形のものよりも、周囲の長さが短かくな
り、これに巻回されるコイルの１ターン当りの
の長さが短くなつて銅線の長さが短くて済み、
又それに伴なつて銅損も少なくなる。 Comparing the iron core of the present invention with such conventional iron cores, 1. Since the inner core is cylindrical, the circumference is shorter than that of a rectangular core with the same cross-sectional area; The length of each turn of the coil is shortened, so the length of the copper wire can be shortened.
Copper loss also decreases accordingly.
２ 外側鉄心がコイル全体を包囲しているため、
その厚みが薄くてよく、又磁束はコイルの中央
より最短距離を通つて放射状に外側に拡がるの
で、磁路の長さが短く、そのため磁気抵抗が小
で又漏洩磁束も少ない。2. Since the outer core surrounds the entire coil,
The thickness may be thin, and since the magnetic flux spreads radially outward from the center of the coil through the shortest distance, the length of the magnetic path is short, so the magnetic resistance is small and the leakage magnetic flux is also small.
３ コイル全体が鉄心で包まれているので、コイ
ルからの熱の伝導がよく、外側鉄心の表面積が
大きいことと相俟つて熱の放散がよい。3. Since the entire coil is wrapped in an iron core, heat conduction from the coil is good, and combined with the large surface area of the outer iron core, heat dissipation is good.
４ 鉄心を構成するる薄鋼板は、鉄心の中央部で
薄く、外側で厚いため、中央部における渦流に
よる発熱が少なく、又内側鉄心に縦の貫通穴を
設け、或は又外側鉄心の薄鋼板間に隙間を形成
すること等によつて内側鉄心の温度上昇を防
ぎ、外側鉄心の冷却効果を上げてコイルの温度
上昇を低く抑えることができる。4. The thin steel plates that make up the core are thinner at the center of the core and thicker at the outside, so there is less heat generated by eddy currents in the center. By forming a gap between the coils, it is possible to prevent the temperature rise of the inner core, increase the cooling effect of the outer core, and suppress the temperature rise of the coil.
５ 以上のことから安定器、又は変圧器全体の形
状を小さくすることができる。5. From the above, the overall shape of the ballast or transformer can be made smaller.
等の優れた効果が得られる。Excellent effects such as these can be obtained.
本発明は上述のように、一端が薄く他端が厚い
薄鋼板を厚さが薄い方の端部を内側にして放射状
に積層して、コイルの内側を貫通する円筒形の内
側鉄心とコイルの外側を囲む円筒形の外側鉄心か
ら成る電磁鉄心を構成したもので、このような電
磁鉄心は上述の実施例に示すように放電灯の塞流
線輪型安定器の鉄心に利用することができるほ
か、漏洩変圧器型安定器その他の変圧器の電磁鉄
心に利用することができ、その場合にも上述と同
様の効果を得ることができる。例えば第５図ａは
変圧器の電磁鉄心に利用した場合の側断面図で、
図中、１及び２は一端が薄く他端が厚い薄鋼板を
放射状に積層してつぼ形に形成した本発明の電磁
鉄心、５はその内側鉄心、６は外側鉄心、１４，
１５は内側鉄心５に巻かれた変圧器の一次コイル
１４及び二次コイル１５である。又、第５図ｂ
は、第５図ａにおける一次コイル１４と二次コイ
ル１５の間に漏洩鉄心１６を設けて漏洩トランス
型安定器とした例の側断面図である。 As described above, the present invention consists of thin steel plates that are thin at one end and thick at the other end, and are laminated radially with the thinner end inward to form a cylindrical inner iron core that penetrates the inside of the coil. The electromagnetic core consists of a cylindrical outer core that surrounds the outside, and such an electromagnetic core can be used as the core of a flow wire type ballast for a discharge lamp, as shown in the above embodiment. In addition, it can be used in electromagnetic cores of leaky transformer type ballasts and other transformers, and in that case, the same effects as described above can be obtained. For example, Figure 5a is a side cross-sectional view when used as an electromagnetic core of a transformer.
In the figure, 1 and 2 are electromagnetic cores of the present invention formed into a pot shape by radially laminating thin steel plates that are thin at one end and thick at the other end, 5 is an inner core, 6 is an outer core, 14,
Reference numeral 15 denotes a primary coil 14 and a secondary coil 15 of the transformer, which are wound around the inner core 5. Also, Figure 5b
5 is a side sectional view of an example in which a leaky core 16 is provided between the primary coil 14 and the secondary coil 15 in FIG. 5a to form a leaky transformer type ballast.
第１図は本発明による放電灯用安定器の一実施
例を示し、ａは側断面図、ｂはそのＸ−Ｘ線にお
ける断面図、第２図は第１図の要部の斜視図でａ
は鉄心１の斜視図、ｂは鋼板３の斜視図、第３図
は本発明の他の実施例の側断面図ａとそのＸ−Ｘ
線における断面図ｂ、第４図は従来の放電灯用安
定器の一例の側断面図ａと上面図ｂ、第５図ａは
本発明の電磁鉄心を使用した変圧器の一例の側断
面図、同図ｂは同様に漏洩変圧器型安定器の一例
の側断面図である。
１，２……つぼ形鉄心、３……薄鋼板、４……
溝、５……内側鉄心、６……外側鉄心、７……空
隙、８……コイル、９……穴。
Fig. 1 shows an embodiment of a ballast for a discharge lamp according to the present invention, in which a is a side sectional view, b is a sectional view taken along the line X-X, and Fig. 2 is a perspective view of the main parts of Fig. 1. a
is a perspective view of the iron core 1, b is a perspective view of the steel plate 3, and FIG. 3 is a side sectional view a of another embodiment of the present invention and its X-X
4 is a side sectional view a and a top view b of an example of a conventional ballast for a discharge lamp, and FIG. 5 a is a side sectional view of an example of a transformer using the electromagnetic core of the present invention. , FIG. 1B is a side sectional view of an example of a leaky transformer type ballast. 1, 2... pot-shaped iron core, 3... thin steel plate, 4...
Groove, 5...inner core, 6...outer core, 7...gap, 8...coil, 9...hole.
Claims (1)
の端部を内側にして放射状に積層して、コイルの
内側を貫通する円筒形の内側鉄心と、前記内側鉄
心の両端部に連続してコイルの外側を包囲する円
筒形の外側鉄心とを構成して成る電磁鉄心。1 Thin steel plates that are thin at one end and thick at the other end are laminated radially with the thinner end on the inside to form a cylindrical inner core that penetrates the inside of the coil and continuous to both ends of the inner core. and a cylindrical outer core that surrounds the outside of the coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17795380A JPS57100711A (en) | 1980-12-15 | 1980-12-15 | Electromagnetic core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17795380A JPS57100711A (en) | 1980-12-15 | 1980-12-15 | Electromagnetic core |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57100711A JPS57100711A (en) | 1982-06-23 |
| JPS6119096B2 true JPS6119096B2 (en) | 1986-05-15 |
Family
ID=16039962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17795380A Granted JPS57100711A (en) | 1980-12-15 | 1980-12-15 | Electromagnetic core |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57100711A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04277294A (en) * | 1991-03-06 | 1992-10-02 | Nishimatsu Constr Co Ltd | Rectangular cross-sectional shield advancing excavator |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57143804A (en) * | 1981-02-28 | 1982-09-06 | Futaba Denjiki Kk | Cylindrical iron core made of segmental pieces |
| US4813400A (en) * | 1986-08-08 | 1989-03-21 | Olympus Optical Co., Ltd. | Optical fiber assembly for an endoscope |
-
1980
- 1980-12-15 JP JP17795380A patent/JPS57100711A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04277294A (en) * | 1991-03-06 | 1992-10-02 | Nishimatsu Constr Co Ltd | Rectangular cross-sectional shield advancing excavator |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57100711A (en) | 1982-06-23 |
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