JPS6155314U - - Google Patents
Info
- Publication number
- JPS6155314U JPS6155314U JP12616884U JP12616884U JPS6155314U JP S6155314 U JPS6155314 U JP S6155314U JP 12616884 U JP12616884 U JP 12616884U JP 12616884 U JP12616884 U JP 12616884U JP S6155314 U JPS6155314 U JP S6155314U
- Authority
- JP
- Japan
- Prior art keywords
- ferromagnetic
- magnetic flux
- face
- ferrite magnet
- magnet
- 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
- 230000005291 magnetic effect Effects 0.000 claims description 18
- 229910000859 α-Fe Inorganic materials 0.000 claims description 14
- 230000005294 ferromagnetic effect Effects 0.000 claims description 10
- 230000004907 flux Effects 0.000 claims description 10
- 230000007935 neutral effect Effects 0.000 claims description 4
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 6
Landscapes
- Hard Magnetic Materials (AREA)
Description
第１図はこの考案による異方性フエライト磁石
の表面磁束分布図、第２図は偏平な環状異方性フ
エライト磁石の断面説明図、第３図は従来の環状
異方性フエライト磁石の表面磁束分布図である。
１…異方性フエライト磁石、２…強磁性端面、
３…弱磁性端面。
Fig. 1 is a surface magnetic flux distribution diagram of an anisotropic ferrite magnet according to this invention, Fig. 2 is a cross-sectional diagram of a flat annular anisotropic ferrite magnet, and Fig. 3 is a surface magnetic flux of a conventional annular anisotropic ferrite magnet. It is a distribution map. 1...Anisotropic ferrite magnet, 2...Ferromagnetic end face,
3...Weakly magnetic end face.
補正 昭６０．１０．１４
考案の名称を次のように補正する。
考案の名称 異方性フエライト磁石体
実用新案登録請求の範囲、図面の簡単な説明を
次のように補正する。Amendment October 14, 1980 The name of the invention is amended as follows. Title of the invention: Anisotropic ferrite magnet The claims for utility model registration and the brief description of the drawings are amended as follows.
【実用新案登録請求の範囲】
偏平状異方性フエライト磁石の一方端面が強磁
性で、他方端面が弱磁性であり、強磁性面／弱磁
性面の有効磁束密度比が１．１２以上を満足し、
磁石内に形成される中立線がほぼ放物線状で、
Ｌｍ／ｔｏ＝２．２〜１０．０（Ｌｍ；磁石厚
み、ｔｏ；放物線状中立線の副）を満足し、
上記強磁性端面内周部における表面磁束分布が
弱磁性端面内周部の表面磁束分布より内方に偏倚
した特性を有し、
かつ、強磁性端面中心部から外周部に向つて傾
斜し、その角度が５０°〜８０°の傾斜角度範囲
で減少特性を有することを特徴とする異方性フエ
ライト磁石体。[Claims for Utility Model Registration] One end surface of a flat anisotropic ferrite magnet is ferromagnetic, the other end surface is weakly magnetic, and the effective magnetic flux density ratio of the ferromagnetic surface/weakly magnetic surface satisfies 1.12 or more. The neutral line formed within the magnet is approximately parabolic, and satisfies Lm/to=2.2 to 10.0 (Lm: magnet thickness, to: subtractive of parabolic neutral line), and the ferromagnetic end face The surface magnetic flux distribution at the inner circumference has a characteristic that it is more inwardly biased than the surface magnetic flux distribution at the inner circumference of the weakly magnetic end face, and is inclined from the center of the ferromagnetic end face toward the outer circumference at an angle of 50°. An anisotropic ferrite magnet characterized by having a decreasing characteristic in an inclination angle range of ~80°.
【図面の簡単な説明】
第１図はこの考案による異方性フエライト磁石
の表面磁束分布図、第２図は偏平な環状異方性フ
エライト磁石の断面説明図、第３図は従来の環状
異方性フエライト磁石の表面磁束分布図である。
１…異方性フエライト磁石、２…強磁性端面、
３…弱磁性端面。[Brief explanation of the drawings] Figure 1 is a surface magnetic flux distribution diagram of an anisotropic ferrite magnet according to this invention, Figure 2 is a cross-sectional diagram of a flat annular anisotropic ferrite magnet, and Figure 3 is a diagram of a conventional anisotropic ferrite magnet. FIG. 3 is a surface magnetic flux distribution diagram of a oriented ferrite magnet. 1...Anisotropic ferrite magnet, 2...Ferromagnetic end face,
3...Weakly magnetic end face.
Claims (1)
性で、他方端面が弱磁性であり、強磁性面／弱磁
性面の有効磁束密度比が１．１２以上を満足し、 磁石内に形成される中立線がほぼ放物線状で、 Ｌｍ／ｔｏ＝２．２〜１０．０（Ｌｍ；磁石厚
み、ｔｏ；放物線状中立線の幅）を満足し、 上記強磁性端面内周部における表面磁束分布が
弱磁性端面内周部の表面磁束分布より内方に偏倚
した特性を有し、 かつ、強磁性端面中心部から外周部に向つて傾
斜し、その角度が５０°〜８０°の傾斜角度範囲
で減少特性を有することを特徴とする異方性フエ
ライト磁石体。[Claims for Utility Model Registration] One end surface of a flat anisotropic ferrite magnet is ferromagnetic, the other end surface is weakly magnetic, and the effective magnetic flux density ratio of the ferromagnetic surface/weakly magnetic surface satisfies 1.12 or more. The neutral line formed within the magnet is approximately parabolic, and satisfies Lm/to=2.2 to 10.0 (Lm: magnet thickness, to: width of parabolic neutral line), and the ferromagnetic end face The surface magnetic flux distribution at the inner circumference has a characteristic that it is more inwardly biased than the surface magnetic flux distribution at the inner circumference of the weakly magnetic end face, and is inclined from the center of the ferromagnetic end face toward the outer circumference at an angle of 50°. An anisotropic ferrite magnet characterized by having a decreasing characteristic in an inclination angle range of ~80°.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984126168U JPH039288Y2 (en) | 1984-08-20 | 1984-08-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984126168U JPH039288Y2 (en) | 1984-08-20 | 1984-08-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6155314U true JPS6155314U (en) | 1986-04-14 |
| JPH039288Y2 JPH039288Y2 (en) | 1991-03-08 |
Family
ID=30684851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984126168U Expired JPH039288Y2 (en) | 1984-08-20 | 1984-08-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH039288Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52112798A (en) * | 1976-03-19 | 1977-09-21 | Hitachi Metals Ltd | Oxide permanent magnet for magnetron |
| JPS5928541A (en) * | 1982-08-06 | 1984-02-15 | Tohoku Metal Ind Ltd | Manufacture of sintered type anisotropic permanent magnet |
-
1984
- 1984-08-20 JP JP1984126168U patent/JPH039288Y2/ja not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52112798A (en) * | 1976-03-19 | 1977-09-21 | Hitachi Metals Ltd | Oxide permanent magnet for magnetron |
| JPS5928541A (en) * | 1982-08-06 | 1984-02-15 | Tohoku Metal Ind Ltd | Manufacture of sintered type anisotropic permanent magnet |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH039288Y2 (en) | 1991-03-08 |
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