JPH0468449U - - Google Patents
Info
- Publication number
- JPH0468449U JPH0468449U JP11232890U JP11232890U JPH0468449U JP H0468449 U JPH0468449 U JP H0468449U JP 11232890 U JP11232890 U JP 11232890U JP 11232890 U JP11232890 U JP 11232890U JP H0468449 U JPH0468449 U JP H0468449U
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- magnetic pole
- brushless motor
- pole pieces
- axial direction
- 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.)
- Pending
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 2
- 229910052782 aluminium Inorganic materials 0.000 claims 2
- 230000002093 peripheral effect Effects 0.000 claims 2
- 210000000078 claw Anatomy 0.000 claims 1
- 238000004512 die casting Methods 0.000 claims 1
- 229910052742 iron Inorganic materials 0.000 claims 1
- 238000010030 laminating Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
Landscapes
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Description
第１図は本考案の実施例に係る永久磁石回転型
ブラシレスモータ用のロータを示す横断面図、第
２図は本考案の他の実施例に係るロータを示す横
断面図、第３図は本考案のロータにおける磁束の
流れを示す図、第４図は従来技術に係るローラを
示す横断面図である。
FIG. 1 is a cross-sectional view showing a rotor for a permanent magnet rotating brushless motor according to an embodiment of the present invention, FIG. 2 is a cross-sectional view showing a rotor according to another embodiment of the present invention, and FIG. A diagram showing the flow of magnetic flux in the rotor of the present invention, and FIG. 4 is a cross-sectional view showing a roller according to the prior art.
Claims (1)
に配設すると共に、軸方向に亘り電気鉄片を積層
して成る同数の磁極片をその周方向に関して隣接
するものの間に上記永久磁石の両側面が夫々当接
して挟持されている様に配設した永久磁石回転型
のブラシレスモータ用回転子において、上記各永
久磁石及び上記各磁極片の内周側端面に臨み軸方
向に亘り形成された空間、及び上記各磁極片の実
質的に中央部に各々の内周端から外周側に向かつ
て軸方向に亘り形成された溝に、アルミダイカス
トによりアルミを充填したことを特徴とする永久
磁石回転型ブラシレスモータ回転子。 (2) 請求項１において、上記各溝の中央部付近
に丸溝部が形成されていることを特徴とするブラ
シレスモータ用回転子。 (3) 請求項１において、上記各永久磁石及び各
磁極片の内周側端面に形成された空間は軸の周囲
に亘り連続的に形成されていることを特徴とする
ブラシレスモータ用回転子。 (4) 請求項１において、上記各溝の軸方向に垂
直な方向の長さは上記各磁極片の同方向の長さ約
1/3であることを特徴とするブラシレスモータ用
回転子。 (5) 請求項１において、上記各磁極片の内周端
には隣接する永久磁石の円周端面を係止する爪部
１０ａ，１０ｂが設けられていることを特徴とす
るブラシレスモータ用回転子。[Claims for Utility Model Registration] (1) A plurality of permanent magnets are arranged at equal intervals in the circumferential direction, and the same number of magnetic pole pieces made by laminating electric iron pieces in the axial direction are arranged in the circumferential direction. In a rotor for a brushless motor of a permanent magnet rotating type, which is arranged such that both sides of the permanent magnets are in contact with and sandwiched between adjacent ones, the inner peripheral side of each of the above-mentioned permanent magnets and each of the above-mentioned magnetic pole pieces. Aluminum is formed by aluminum die-casting into the space formed in the axial direction facing the end face, and in the groove formed in the axial direction from the inner circumferential end to the outer circumferential side in substantially the center of each of the magnetic pole pieces. A permanent magnet rotating type brushless motor rotor characterized by being filled. (2) The rotor for a brushless motor according to claim 1, wherein a round groove portion is formed near the center of each of the grooves. (3) The rotor for a brushless motor according to claim 1, wherein the spaces formed in the inner peripheral end faces of each of the permanent magnets and each magnetic pole piece are formed continuously around the shaft. (4) In claim 1, the length of each groove in the direction perpendicular to the axial direction is approximately the length of each of the magnetic pole pieces in the same direction.
A rotor for brushless motors characterized by being 1/3. (5) The rotor for a brushless motor according to claim 1, wherein the inner circumferential end of each of the magnetic pole pieces is provided with claw portions 10a and 10b for locking the circumferential end surface of an adjacent permanent magnet. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11232890U JPH0468449U (en) | 1990-10-26 | 1990-10-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11232890U JPH0468449U (en) | 1990-10-26 | 1990-10-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0468449U true JPH0468449U (en) | 1992-06-17 |
Family
ID=31859831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11232890U Pending JPH0468449U (en) | 1990-10-26 | 1990-10-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0468449U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007244017A (en) * | 2006-03-06 | 2007-09-20 | Nissan Motor Co Ltd | Rotor structure of rotating electrical machine |
| US9973048B2 (en) | 2015-02-27 | 2018-05-15 | Nidec Corporation | Motor |
| US10312755B2 (en) | 2015-02-27 | 2019-06-04 | Nidec Corporation | Motor |
| JP2021132501A (en) * | 2020-02-20 | 2021-09-09 | パナソニックＩｐマネジメント株式会社 | Motors and power tools |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4336649A (en) * | 1978-12-26 | 1982-06-29 | The Garrett Corporation | Method of making rotor assembly having anchor with undulating sides |
| JPS59113754A (en) * | 1982-12-08 | 1984-06-30 | ロ−ベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Generator for vehicle |
-
1990
- 1990-10-26 JP JP11232890U patent/JPH0468449U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4336649A (en) * | 1978-12-26 | 1982-06-29 | The Garrett Corporation | Method of making rotor assembly having anchor with undulating sides |
| JPS59113754A (en) * | 1982-12-08 | 1984-06-30 | ロ−ベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Generator for vehicle |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007244017A (en) * | 2006-03-06 | 2007-09-20 | Nissan Motor Co Ltd | Rotor structure of rotating electrical machine |
| US9973048B2 (en) | 2015-02-27 | 2018-05-15 | Nidec Corporation | Motor |
| US10312755B2 (en) | 2015-02-27 | 2019-06-04 | Nidec Corporation | Motor |
| US10763714B2 (en) | 2015-02-27 | 2020-09-01 | Nidec Corporation | Motor |
| JP2021132501A (en) * | 2020-02-20 | 2021-09-09 | パナソニックＩｐマネジメント株式会社 | Motors and power tools |
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