JPH0459924U - - Google Patents
Info
- Publication number
- JPH0459924U JPH0459924U JP10258290U JP10258290U JPH0459924U JP H0459924 U JPH0459924 U JP H0459924U JP 10258290 U JP10258290 U JP 10258290U JP 10258290 U JP10258290 U JP 10258290U JP H0459924 U JPH0459924 U JP H0459924U
- Authority
- JP
- Japan
- Prior art keywords
- circumferential surface
- magnetic core
- cut groove
- inner circumferential
- cross
- 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
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 239000005300 metallic glass Substances 0.000 claims 1
- 238000004804 winding Methods 0.000 claims 1
- 230000005284 excitation Effects 0.000 description 4
- 230000004907 flux Effects 0.000 description 3
Landscapes
- Soft Magnetic Materials (AREA)
- Regulation Of General Use Transformers (AREA)
Description
第１図ないし第９図は本考案の実施例を示し、
第１図は第１実施例の斜視図、第２図はその一部
切欠した斜視図、第３図は第２実施例の一部切欠
した斜視図、第４図は第３実施例の斜視図、第５
図は第４実施例の斜視図、第６図は第５実施例の
斜視図、第７図は多重正弦波（周波数範囲１から
２０ＫＨｚで出力電圧が一定）で励振した時の周
波数１０ＫＨｚにおける磁束密度と騒音の音圧レ
ベルとの関係を示すグラフ、第８図は励振周波数
５ＫＨｚで正弦波励振した時場合の磁束密度と周
波数５ＫＨｚの発生音レベルとの関係を示すグラ
フ、第９図は励振周波数５ＫＨｚで正弦波励振し
た場合の磁束密度と周波数１０ＫＨｚの発生音レ
ベルとの関係を示すグラフである。
１……磁心、２……第１の側面、３……切り込
み溝、４……第２の側面、５……外周面、６……
内周面。
1 to 9 show embodiments of the present invention,
Fig. 1 is a perspective view of the first embodiment, Fig. 2 is a partially cutaway perspective view thereof, Fig. 3 is a partially cutaway perspective view of the second embodiment, and Fig. 4 is a perspective view of the third embodiment. Figure, 5th
The figure is a perspective view of the fourth embodiment, FIG. 6 is a perspective view of the fifth embodiment, and FIG. 7 is the magnetic flux at a frequency of 10 KHz when excited with a multiple sine wave (output voltage is constant in the frequency range of 1 to 20 KHz). A graph showing the relationship between the density and the sound pressure level of noise. Figure 8 is a graph showing the relationship between the magnetic flux density and the sound level generated at a frequency of 5 KHz when the excitation frequency is 5 KHz with sine wave excitation. Figure 9 is the graph when the excitation frequency is 5 KHz. It is a graph showing the relationship between the magnetic flux density and the generated sound level at a frequency of 10 KHz when sine wave excitation is performed at a frequency of 5 KHz. DESCRIPTION OF SYMBOLS 1... Magnetic core, 2... First side surface, 3... Notch groove, 4... Second side surface, 5... Outer peripheral surface, 6...
Inner peripheral surface.
Claims (1)
面とを有し、これら外周面と内周面の夫々の一方
の縁同士を連結する第１の側面と、外周面と内周
面との夫々の他方の縁同士を連結する第２の側面
とを有し、 前記第１の側面、第２の側面の少なくともいず
れかと内周面とに跨る切り込み溝を形成し、この
切り込み溝は外周面側から内周面側に至るにした
がつて切り込み断面積が大きくなるよう形成され
ていることを特徴とする磁心。 (2) 前記切り込み溝の断面積を全断面の２０％
から８０％としたことを特徴とする請求項１記載
の磁心。 (3) アモルフアス金属製リボンを巻回して構成
することを特徴とする請求項１または２に記載の
磁心。[Claims for Utility Model Registration] (1) A first ring which is annular and has a rectangular cross section and has an outer circumferential surface and an inner circumferential surface, and connects one edge of each of the outer circumferential surface and the inner circumferential surface. and a second side surface that connects the other edges of the outer circumferential surface and the inner circumferential surface, and straddles the inner circumferential surface and at least one of the first side surface and the second side surface. A magnetic core characterized in that a cut groove is formed, and the cut groove is formed such that the cut groove becomes larger in cross-sectional area from the outer peripheral surface side to the inner peripheral surface side. (2) The cross-sectional area of the cut groove is 20% of the total cross-section.
2. The magnetic core according to claim 1, wherein the magnetic core is set to 80%. (3) The magnetic core according to claim 1 or 2, characterized in that it is constructed by winding an amorphous metal ribbon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10258290U JPH0648816Y2 (en) | 1990-09-28 | 1990-09-28 | Magnetic core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10258290U JPH0648816Y2 (en) | 1990-09-28 | 1990-09-28 | Magnetic core |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0459924U true JPH0459924U (en) | 1992-05-22 |
| JPH0648816Y2 JPH0648816Y2 (en) | 1994-12-12 |
Family
ID=31846957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10258290U Expired - Lifetime JPH0648816Y2 (en) | 1990-09-28 | 1990-09-28 | Magnetic core |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0648816Y2 (en) |
-
1990
- 1990-09-28 JP JP10258290U patent/JPH0648816Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0648816Y2 (en) | 1994-12-12 |
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