JPH0564384A - Electric motor - Google Patents
Electric motorInfo
- Publication number
- JPH0564384A JPH0564384A JP3184392A JP3184392A JPH0564384A JP H0564384 A JPH0564384 A JP H0564384A JP 3184392 A JP3184392 A JP 3184392A JP 3184392 A JP3184392 A JP 3184392A JP H0564384 A JPH0564384 A JP H0564384A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic pole
- inner ring
- bridge
- ring magnetic
- outer ring
- 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
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
(57)【要約】
【目的】 外輪ヨーク部と内輪磁極部とに二分割された
固定子にて形成された電動機において、内輪磁極部にて
ポールピースを連絡するブリッジ部よりの磁束漏れを防
止し、電動機の効率、騒音および振動等の特性の向上を
図る。
【構成】 内輪磁極部１０と外輪ヨーク部５とに二分割
された固定子において、ポールピース７と、このポール
ピースを連結するブリッジ部９とから構成される内輪磁
極部１１のブリッジ部９外壁に凹部１０を設け、さらに
外壁に樹脂１２を成形固着した後、内輪磁極部１１の内
周を凹部１０の底面まで切削することにてブリッジ部９
を分断する。
(57) [Abstract] [Purpose] Prevents magnetic flux leakage from the bridge part connecting the pole pieces in the inner ring magnetic pole part in the motor formed of the stator divided into the outer ring yoke part and the inner ring magnetic pole part. However, the efficiency, noise, vibration and other characteristics of the motor will be improved. [Structure] In a stator divided into two parts, an inner ring magnetic pole part 10 and an outer ring yoke part 5, an outer wall of a bridge part 9 of an inner ring magnetic pole part 11 composed of a pole piece 7 and a bridge part 9 connecting the pole pieces. After forming a concave portion 10 in the inner wall of the bridge 12 and molding and fixing the resin 12 on the outer wall of the bridge portion 9, the inner circumference of the inner ring magnetic pole portion 11 is cut to the bottom surface of the concave portion 10.
Divide.
Description
【０００１】[0001]
【産業上の利用分野】この発明は、外輪ヨーク部と内輪
磁極部とに分割された固定子鉄心を有する電動機に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric motor having a stator core divided into an outer ring yoke portion and an inner ring magnetic pole portion.
【０００２】[0002]
【従来の技術】従来、この種の電動機としては、図１３
に示す磁極を構成する積層構造の複数のポールピース１
を周方向にそれぞれ所定の内隔をもって配列し、内周側
にてブリッジ部２によりブリッジ上に連結された内周部
構造３が図示されない外周部構造に嵌着されるものが知
られている（例えば、実開昭５７−１４９６４５号公報
参照）。2. Description of the Related Art Conventionally, as an electric motor of this type, FIG.
1. A plurality of laminated pole pieces 1 constituting the magnetic pole shown in FIG.
It is known that the inner peripheral portion structure 3 is arranged in the circumferential direction with a predetermined inner space, and the inner peripheral portion structure 3 connected to the bridge by the bridge portion 2 on the inner peripheral side is fitted to the outer peripheral portion structure (not shown). (For example, see Japanese Utility Model Laid-Open No. 57-149645).
【０００３】[0003]
【発明が解決しようとする課題】上記のような従来の電
動機では、ポールピース１がブリッジ部２により連結さ
れる構造である為、ブリッジ部２より磁束が漏れ、電動
機効率が低下するという課題があり、この課題を解決す
るためにブリッジ部２幅を狭くする方法が有るが、内周
部構造３の強度が不足するという問題点があった。In the conventional electric motor as described above, since the pole piece 1 is connected by the bridge portion 2, the magnetic flux leaks from the bridge portion 2 and the efficiency of the electric motor is lowered. There is a method of narrowing the width of the bridge portion 2 to solve this problem, but there is a problem that the strength of the inner peripheral portion structure 3 is insufficient.
【０００４】この発明は係る課題を解決するためになさ
れたもので、ブリッジ部よりの漏れ磁束を少なくすると
ともに、強度が確保された内周部構造を有する電動機を
得ることを目的とするものである。The present invention has been made in order to solve the above problems, and an object thereof is to obtain an electric motor having an inner peripheral portion structure in which the leakage magnetic flux from the bridge portion is reduced and the strength is secured. is there.
【０００５】[0005]
【課題を解決するための手段】請求項１の電動機は、薄
板を積層し、外輪部を形成する外輪ヨーク部と、この外
輪ヨーク部に嵌合固定され、磁極を構成する積層構造の
複数のポールピースを周方向にそれぞれ所定の間隙をも
って配列し内周側にてブリッジ部により連結されてなる
内輪磁極部とを備え、上記内輪磁極部のブリッジ部外壁
に凹部を形成し、この凹部を含む内輪磁極部の外壁に樹
脂を一体成形にて固着した後、内輪磁極部内周を切削し
ブリッジ部に上記凹部と連通されるスリットを形成した
ものである。According to another aspect of the present invention, there is provided an electric motor having a plurality of laminated structures in which thin plates are laminated to form an outer ring portion, and an outer ring yoke portion is fitted and fixed to the outer ring yoke portion to form magnetic poles. An inner ring magnetic pole part formed by arranging the pole pieces with a predetermined gap in the circumferential direction and connected by a bridge part on the inner circumferential side, and forming a recess on the outer wall of the bridge part of the inner ring magnetic pole part, and including this recess After the resin is integrally fixed to the outer wall of the inner ring magnetic pole part, the inner circumference of the inner ring magnetic pole part is cut to form a slit in the bridge part which communicates with the recess.
【０００６】請求項２の電動機は、薄板を積層し、外輪
部を形成する外輪ヨーク部と、この外輪ヨーク部に嵌合
固定され、磁極を構成する積層構造の複数のポールピー
スを周方向にそれぞれ所定の間隙をもって配列し内周側
にてブリッジ部により連結されてなる内輪磁極部とを備
え、上記ブリッジ部に上記内輪磁極部中心方向に一体に
て突設された内周凸部を設け、この内周凸部を含む内輪
磁極部外壁に樹脂を一体成形にて固着した後、上記内周
凸部を切削しブリッジ部にスリットを設けたものであ
る。According to another aspect of the electric motor of the present invention, a thin plate is laminated to form an outer ring portion, and a plurality of pole pieces having a laminated structure that are fitted and fixed to the outer ring yoke portion and that form magnetic poles are circumferentially arranged. The inner ring magnetic pole portion is arranged with a predetermined gap and is connected to the inner circumferential side by a bridge portion, and the bridge portion is provided with an inner circumferential convex portion integrally projecting in the central direction of the inner ring magnetic pole portion. A resin is integrally molded and fixed to the outer wall of the inner ring magnetic pole portion including the inner peripheral convex portion, and then the inner peripheral convex portion is cut to provide a slit in the bridge portion.
【０００７】請求項３の電動機は、薄板を積層し、外輪
部を形成する外輪ヨーク部と、この外輪ヨーク部に嵌合
固定され、磁極を構成する積層構造の複数のポールピー
スを周方向にそれぞれ所定の間隙をもって配列し内周側
にてブリッジ部により連結されてなる内輪磁極部とを備
え、上記内輪磁極部の外壁に樹脂を一体成形にて固着し
た後、上記ブリッジ部に分断加工を加え、スリットを形
成したものである。According to another aspect of the electric motor of the present invention, an outer ring yoke portion is formed by laminating thin plates to form an outer ring portion, and a plurality of pole pieces having a laminated structure that are fitted and fixed to the outer ring yoke portion and that form magnetic poles are circumferentially arranged. Each of the inner ring magnetic pole portions is arranged with a predetermined gap and is connected by a bridge portion on the inner peripheral side, and a resin is integrally molded and fixed to the outer wall of the inner ring magnetic pole portion, and then the bridge portion is divided. In addition, a slit is formed.
【０００８】[0008]
【作用】請求項１の電動機は、薄板を積層し、外輪部を
形成する外輪ヨーク部と、この外輪ヨーク部に嵌合固定
され、磁極を構成する積層構造の複数のポールピースを
周方向にそれぞれ所定の間隙をもって配列し内周側にて
ブリッジ部により連結されてなる内輪磁極部とを備え、
上記内輪磁極部のブリッジ部外壁に凹部を形成し、この
凹部を含む内輪磁極部の外壁に樹脂を一体成形にて固着
した後、内輪磁極部内周を切削しブリッジ部に上記凹部
と連通されるスリットを形成したことより、ポールピー
ス間相互の漏れ磁束がブリッジ部より漏れることはな
い。According to the electric motor of the present invention, a thin plate is laminated to form an outer ring yoke portion, and a plurality of pole pieces having a laminated structure which form a magnetic pole and are fitted and fixed to the outer ring yoke portion in the circumferential direction. And inner ring magnetic pole portions arranged with a predetermined gap and connected by a bridge portion on the inner peripheral side,
A concave portion is formed on the outer wall of the bridge portion of the inner ring magnetic pole portion, a resin is integrally molded and fixed to the outer wall of the inner ring magnetic pole portion including the concave portion, and then the inner circumference of the inner ring magnetic pole portion is cut so that the bridge portion communicates with the concave portion. Since the slits are formed, mutual leakage flux between the pole pieces does not leak from the bridge portion.
【０００９】請求項２の電動機は、薄板を積層し、外輪
部を形成する外輪ヨーク部と、この外輪ヨーク部に嵌合
固定され、磁極を構成する積層構造の複数のポールピー
スを周方向にそれぞれ所定の間隙をもって配列し内周側
にてブリッジ部により連結されてなる内輪磁極部とを備
え、上記ブリッジ部に上記内輪磁極部中心方向に一体に
て突設された内周凸部を設け、この内周凸部を含む内輪
磁極部外壁に樹脂を一体成形にて固着した後、上記内周
凸部を切削しブリッジ部にスリットを設けたことより、
ポールピース間相互の漏れ磁束がブリッジ部より漏れる
ことはない。According to another aspect of the electric motor of the present invention, thin plates are laminated to form an outer ring portion, and a plurality of pole pieces having a laminated structure, which are fitted and fixed to the outer ring yoke portion and form magnetic poles, in the circumferential direction. The inner ring magnetic pole portion is arranged with a predetermined gap and is connected to the inner circumferential side by a bridge portion, and the bridge portion is provided with an inner circumferential convex portion integrally projecting in the central direction of the inner ring magnetic pole portion. After fixing the resin to the outer wall of the inner ring magnetic pole portion including the inner peripheral convex portion by integral molding, by cutting the inner peripheral convex portion and providing the slit in the bridge portion,
Mutual leakage flux between pole pieces does not leak from the bridge portion.
【００１０】請求項３の電動機は、薄板を積層し、外輪
部を形成する外輪ヨーク部と、この外輪ヨーク部に嵌合
固定され、磁極を構成する積層構造の複数のポールピー
スを周方向にそれぞれ所定の間隙をもって配列し内周側
にてブリッジ部により連結されてなる内輪磁極部とを備
え、上記内輪磁極部の外壁に樹脂を一体成形にて固着し
た後、上記ブリッジ部に分断加工を加え、スリットを形
成したことより、ポールピース間相互の漏れ磁束がブリ
ッジ部より漏れることはない。According to another aspect of the electric motor of the present invention, a thin plate is laminated to form an outer ring yoke portion, and a plurality of pole pieces having a laminated structure, which are fitted and fixed to the outer ring yoke portion and form magnetic poles, in the circumferential direction. Each of the inner ring magnetic pole portions is arranged with a predetermined gap and is connected by a bridge portion on the inner peripheral side, and a resin is integrally molded and fixed to the outer wall of the inner ring magnetic pole portion, and then the bridge portion is divided. In addition, since the slits are formed, mutual leakage flux between the pole pieces does not leak from the bridge portion.
【００１１】[0011]
【実施例】実施例１．図１〜図６はこの発明の実施例１
を示す図であり、図において５は固定子の外輪ヨーク部
で、電磁鋼板等の薄板を複数枚積層した円筒状のもので
ある。６はこの外輪ヨーク部５の内周に設けられた凹部
溝で、その側壁は後述される内輪磁極部中心に一致する
ように構成されている。７は上記外輪ヨーク部５内周よ
りスロット８を形成して突設された複数のポールピース
で、電磁鋼板等の薄板が複数枚積層されてなり、上記外
輪ヨーク部５の凹部溝６と嵌合される。９はこの複数の
ポールピースを周方向に放射状にて配設しそれぞれの先
端を接続するブリッジ部で、円弧状からなり、外周はフ
ラット状に形成されている。１０はこのブリッジ部の外
壁側のほぼ中央に穿設された凹部で、図４に示すように
略Ｕ字状にブリッジ部９内周と所定厚みを有して形成さ
れている。なお、この凹部は上記薄板の状態において穿
設されている。１１は上記凹部１０を有するブリッジ部
９と上記ポールピース７とより形成される内輪磁極部、
１２は樹脂で、絶縁樹脂よりなり図５に示すように上記
内輪磁極部１１のポールピース７およびブリッジ部９の
外壁に均一な厚みを有して一体に成形固着されている。
１３はスリットで、図６に示すように内輪磁極部１１の
内周を図示されない旋盤等にて削ることにて上記凹部１
０が内周と連通されることにて形成され、各ポールピー
ス７は樹脂１２に固着されているため、その形状および
強度は保持されているものである。EXAMPLES Example 1. 1 to 6 show Embodiment 1 of the present invention.
5 is a diagram showing the outer ring yoke portion of the stator, which has a cylindrical shape in which a plurality of thin plates such as electromagnetic steel plates are laminated. Reference numeral 6 denotes a recessed groove provided on the inner periphery of the outer ring yoke portion 5, the side wall of which is configured to coincide with the center of an inner ring magnetic pole portion described later. Reference numeral 7 denotes a plurality of pole pieces protruding from the inner circumference of the outer ring yoke portion 5 so as to form slots 8, which are formed by laminating a plurality of thin plates such as electromagnetic steel plates and are fitted with the recessed grooves 6 of the outer ring yoke portion 5. Are combined. Reference numeral 9 denotes a bridge portion in which the plurality of pole pieces are radially arranged in the circumferential direction and each tip is connected to each other, and the bridge portion has an arc shape and an outer periphery is formed in a flat shape. Denoted at 10 is a recess formed substantially in the center on the outer wall side of the bridge portion, and is formed in a substantially U-shape with an inner circumference of the bridge portion 9 and a predetermined thickness, as shown in FIG. The recess is formed in the thin plate state. Reference numeral 11 denotes an inner ring magnetic pole portion formed by the bridge portion 9 having the recess 10 and the pole piece 7.
Reference numeral 12 denotes a resin, which is made of an insulating resin and integrally molded and fixed to the outer wall of the pole piece 7 and the bridge portion 9 of the inner ring magnetic pole portion 11 with a uniform thickness as shown in FIG.
Reference numeral 13 is a slit, which is formed by cutting the inner circumference of the inner ring magnetic pole portion 11 with a lathe (not shown) as shown in FIG.
0 is formed by communicating with the inner circumference, and each pole piece 7 is fixed to the resin 12, so that its shape and strength are maintained.
【００１２】上記のように構成された電動機において
は、内輪磁極部１１のスロット８に図示されないコイル
が巻回された後、内輪磁極部１１が外輪ヨーク部５の凹
部溝６に圧入嵌合されることにて固定子が形成される。
この場合、各ポールピース７は樹脂１２にて固着され連
結しているため、強度は確保される。そして、図示され
ない電動機本体に組み込まれる。このように、内輪磁極
部１１の各ポールピース７は樹脂１２にて連結され、各
ポールピース７間に磁極を構成するが、隣接する磁極へ
の漏れた磁束の流れはスリット１３によりなくなる。ま
た、ブリッジ部９に接触している樹脂１２に応力をかけ
ず分断加工ができるので、内輪強度の低下はない。さら
に、内輪磁極部１１の内周を切削加工するため、外径と
の同軸精度が向上される。In the electric motor constructed as described above, after the coil (not shown) is wound around the slot 8 of the inner ring magnetic pole portion 11, the inner ring magnetic pole portion 11 is press-fitted into the concave groove 6 of the outer ring yoke portion 5. As a result, the stator is formed.
In this case, since each pole piece 7 is fixed and connected with the resin 12, the strength is secured. Then, it is incorporated into an electric motor body (not shown). As described above, the pole pieces 7 of the inner ring magnetic pole portion 11 are connected by the resin 12 to form magnetic poles between the pole pieces 7, but the slit 13 prevents leakage of the magnetic flux to the adjacent magnetic poles. Further, since the resin 12 in contact with the bridge portion 9 can be cut without applying stress, the strength of the inner ring is not reduced. Further, since the inner circumference of the inner ring magnetic pole portion 11 is cut, the coaxial accuracy with the outer diameter is improved.
【００１３】実施例２．なお、上記実施例ではスリット
１３の形成に旋盤にて内輪磁極部１１の内周を切削した
が、図７に示すようにブリッジ部９のみ図示されないフ
ライス盤にて削ってもよく、上記実施例と同様の効果が
得られる。Embodiment 2. In the above embodiment, the inner circumference of the inner ring magnetic pole portion 11 was cut by a lathe to form the slit 13, but only the bridge portion 9 may be cut by a milling machine (not shown) as shown in FIG. The same effect can be obtained.
【００１４】実施例３．図８はこの発明の実施例３を示
す図であり、図において、１１はブリッジ部９により連
結された複数のポールピース７より形成される内輪磁極
部、１５はブリッジ部９に突設された内周凸部で、図８
に示すように上記内輪磁性部１１中心方向に一体に先端
が例えば鋭角を形成するように所定寸法突設されてな
る。なお、この内周凸部１５を図示されない加工機にて
形成する場合、内輪磁極部１１の各部は変形しないよう
に固定させておく。１２は樹脂で、絶縁樹脂よりなり図
９に示すように上記内輪磁極部１１の外壁に均一な厚み
を有して一体に成形固着されてなり、所定位置に絶縁部
１６を形成する。１３は上記内輪磁極部１１の内周を所
定寸法となるよう図示されない切削機にて上記内周凸部
１５を切削することにて形成されたスリットで、この場
合内輪磁極部１１の各磁性片は分断されるが、上記樹脂
１２が固着されているため、形状強度は保持されている
ものである。Example 3. FIG. 8 is a diagram showing a third embodiment of the present invention. In the figure, 11 is an inner ring magnetic pole portion formed by a plurality of pole pieces 7 connected by a bridge portion 9, and 15 is projectingly provided on the bridge portion 9. As shown in FIG.
As shown in FIG. 3, the tip is integrally provided in the central direction of the inner ring magnetic portion 11 so as to project by a predetermined dimension so as to form an acute angle, for example. When the inner peripheral convex portion 15 is formed by a processing machine (not shown), each portion of the inner ring magnetic pole portion 11 is fixed so as not to be deformed. Reference numeral 12 denotes a resin, which is made of an insulating resin and integrally molded and fixed to the outer wall of the inner ring magnetic pole portion 11 with a uniform thickness as shown in FIG. 9 to form the insulating portion 16 at a predetermined position. Reference numeral 13 is a slit formed by cutting the inner peripheral convex portion 15 with a cutting machine (not shown) so that the inner peripheral portion of the inner ring magnetic pole portion 11 has a predetermined size. In this case, each magnetic piece of the inner ring magnetic pole portion 11 is divided. However, since the resin 12 is fixed, the shape strength is maintained.
【００１５】上記のように構成された電動機において
は、内輪磁極部１１のスロット８に図示されないコイル
が巻回された後、内輪磁極部１１が外輪ヨーク部５の凹
部溝６に圧入嵌合されることにて固定子が形成される。
この場合、各ポールピース７は樹脂１２にて固着され連
結しているため、強度は確保される。そして、図示され
ない電動機本体に組み込まれる。このように、内輪磁極
部１１の各ポールピース７は樹脂１２にて固着され連結
しているため、強度は確保される。そして、図示されな
い電動機本体に組み込まれる。このように、内輪磁性部
１１の各ポールピース７は樹脂１２にて連結され、各ポ
ールピース７間に磁性を構成するが、隣接する磁極への
漏れた磁束の流れはスリット１３によりなくなる。従っ
て漏れ磁束による効率の低下がなくなる。また、内周凸
部１５の形状を任意の形に形成することにより、最小の
スリット１３が得られ、より特性の向上が図れる。In the electric motor constructed as described above, after the coil (not shown) is wound around the slot 8 of the inner ring magnetic pole portion 11, the inner ring magnetic pole portion 11 is press-fitted into the concave groove 6 of the outer ring yoke portion 5. As a result, the stator is formed.
In this case, since each pole piece 7 is fixed and connected with the resin 12, the strength is secured. Then, it is incorporated into an electric motor body (not shown). As described above, since the pole pieces 7 of the inner ring magnetic pole portion 11 are fixed and connected with the resin 12, the strength is secured. Then, it is incorporated into an electric motor body (not shown). In this way, the pole pieces 7 of the inner ring magnetic portion 11 are connected by the resin 12 to form magnetism between the pole pieces 7, but the flow of the leaked magnetic flux to the adjacent magnetic poles is eliminated by the slit 13. Therefore, there is no reduction in efficiency due to leakage flux. Further, by forming the inner peripheral convex portion 15 into an arbitrary shape, the smallest slit 13 can be obtained, and the characteristics can be further improved.
【００１６】実施例４．図１１、１２はこの発明の実施
例４を示す図であり、１２は樹脂で、絶縁樹脂よりなり
図１１に示すように内輪磁極部１１のポールピース７お
よびブリッジ部９の外壁に均一な厚みを有して一体に成
形固着されている。１３は内輪磁極部１１の内周に設け
られたスリットで、例えば図示されない食塩水等の誘導
性の金属塩水溶液を絶縁性能を持つ吐出口（図示せず）
より除去すべきブリッジ部９の中央に流通させ、内輪磁
極部１１側をプラス側、上記金属塩水溶液側をマイナス
側となるよう直流電圧を印加させることにより電気分解
が発生し、ブリッジ部９の中央が溶出され、且つ除去さ
れ図１２に示すようにスリット１３が形成されるもので
ある。Example 4. 11 and 12 are views showing a fourth embodiment of the present invention, in which 12 is a resin, which is made of an insulating resin and has a uniform thickness on the outer wall of the pole piece 7 of the inner ring magnetic pole portion 11 and the bridge portion 9 as shown in FIG. And is integrally molded and fixed. Numeral 13 is a slit provided on the inner circumference of the inner ring magnetic pole portion 11, for example, a discharge port (not shown) having an insulating property for an inductive metallic salt aqueous solution such as saline solution (not shown).
Electrolysis is generated by applying a DC voltage to the center of the bridge portion 9 to be removed so that the inner ring magnetic pole portion 11 side is the positive side and the metal salt aqueous solution side is the negative side. The center is eluted and removed, and the slit 13 is formed as shown in FIG.
【００１７】上記のように構成された電動機において
は、内輪磁極部１１のスロット８に図示されないコイル
が巻回された後、内輪磁極部１１が外輪ヨーク部５の凹
部溝６に圧入嵌合されることにて固定子が形成される。
この場合、各ポールピース７は樹脂１２にて固着され連
結しているため、強度は確保される。そして、図示され
ない電動機本体に組み込まれる。このように、内輪磁極
部１１の各ポールピース７は樹脂１２にて連結され、各
ポールピース７間に磁極を構成するが、隣接する磁極へ
の漏れた磁束の流れはスリット１３によりなくなる。ま
た、ブリッジ部９に接触している樹脂１２に応力をかけ
ず分断加工ができるので、内輪強度の低下はない。In the electric motor constructed as described above, after the coil (not shown) is wound around the slot 8 of the inner ring magnetic pole portion 11, the inner ring magnetic pole portion 11 is press-fitted into the concave groove 6 of the outer ring yoke portion 5. As a result, the stator is formed.
In this case, since each pole piece 7 is fixed and connected with the resin 12, the strength is secured. Then, it is incorporated into an electric motor body (not shown). As described above, the pole pieces 7 of the inner ring magnetic pole portion 11 are connected by the resin 12 to form magnetic poles between the pole pieces 7, but the slit 13 prevents leakage of the magnetic flux to the adjacent magnetic poles. Further, since the resin 12 in contact with the bridge portion 9 can be cut without applying stress, the strength of the inner ring is not reduced.
【００１８】[0018]
【発明の効果】請求項１の電動機は、薄板を積層し、外
輪部を形成する外輪ヨーク部と、この外輪ヨーク部に嵌
合固定され、磁極を構成する積層構造の複数のポールピ
ースを周方向にそれぞれ所定の間隙をもって配列し内周
側にてブリッジ部により連結されてなる内輪磁極部とを
備え、上記内輪磁極部のブリッジ部外壁に凹部を形成
し、この凹部を含む内輪磁極部の外壁に樹脂を一体成形
にて固着した後、内輪磁極部内周を切削しブリッジ部に
上記凹部と連通されるスリットを形成したことより、ブ
リッジ部よりの漏れ磁束がなくなり、電動機の効率がよ
くなり特性の向上が図れる。According to the electric motor of claim 1, the outer ring yoke portion forming the outer ring portion is formed by laminating the thin plates, and the plurality of pole pieces of the laminated structure which are fitted and fixed to the outer ring yoke portion and constitute the magnetic pole are surrounded. Direction and a inner ring magnetic pole part which is arranged with a predetermined gap in each direction and is connected by a bridge part on the inner peripheral side, and a concave part is formed on the outer wall of the bridge part of the inner ring magnetic pole part. After fixing the resin to the outer wall by integral molding, cutting the inner circumference of the inner ring magnetic pole part and forming a slit in the bridge part that communicates with the recess, there is no leakage flux from the bridge part, and the efficiency of the motor improves. The characteristics can be improved.
【００１９】請求項２の電動機は、薄板を積層し、外輪
部を形成する外輪ヨーク部と、この外輪ヨーク部に嵌合
固定され、磁極を構成する積層構造の複数のポールピー
スを周方向にそれぞれ所定の間隙をもって配列し内周側
にてブリッジ部により連結されてなる内輪磁極部とを備
え、上記ブリッジ部に上記内輪磁極部中心方向に一体に
て突設された内周凸部を設け、この内周凸部を含む内輪
磁極部外壁に樹脂を一体成形にて固着した後、上記内周
凸部を切削しブリッジ部にスリットを設けたことより、
ブリッジ部よりの漏れ磁束がなくなり、電動機の効率が
よくなり、特性が向上できる。According to another aspect of the electric motor of the present invention, a thin plate is laminated to form an outer ring yoke portion, and a plurality of pole pieces having a laminated structure which are fitted and fixed to the outer ring yoke portion and constitute magnetic poles are circumferentially arranged. The inner ring magnetic pole portion is arranged with a predetermined gap and is connected to the inner circumferential side by a bridge portion, and the bridge portion is provided with an inner circumferential convex portion integrally projecting in the central direction of the inner ring magnetic pole portion. After fixing the resin to the outer wall of the inner ring magnetic pole portion including the inner peripheral convex portion by integral molding, by cutting the inner peripheral convex portion and providing the slit in the bridge portion,
Leakage flux from the bridge is eliminated, the efficiency of the motor is improved, and the characteristics can be improved.
【００２０】請求項３の電動機は、薄板を積層し、外輪
部を形成する外輪ヨーク部と、この外輪ヨーク部に嵌合
固定され、磁極を構成する積層構造の複数のポールピー
スを周方向にそれぞれ所定の間隙をもって配列し内周側
にてブリッジ部により連結されてなる内輪磁極部とを備
え、上記内輪磁極部の外壁に樹脂を一体成形にて固着し
た後、上記ブリッジ部に分断加工を加え、スリットを形
成したことより、ブリッジ部よりの漏れ磁束がなくな
り、電動機の効率がよくなり特性を向上できる。According to another aspect of the electric motor of the present invention, an outer ring yoke portion is formed by laminating thin plates to form an outer ring portion, and a plurality of pole pieces having a laminated structure that are fitted and fixed to the outer ring yoke portion and that form magnetic poles are circumferentially arranged. Each of the inner ring magnetic pole portions is arranged with a predetermined gap and is connected by a bridge portion on the inner peripheral side, and a resin is integrally molded and fixed to the outer wall of the inner ring magnetic pole portion, and then the bridge portion is divided. In addition, since the slit is formed, the leakage flux from the bridge portion is eliminated, the efficiency of the electric motor is improved, and the characteristics can be improved.
【図１】この発明の実施例１を示し、樹脂固着前の内輪
磁極部の斜視図と平面図である。FIG. 1 is a perspective view and a plan view of an inner ring magnetic pole portion before a resin is fixed, showing Embodiment 1 of the present invention.
【図２】この発明の実施例１を示し、外輪ヨーク部の斜
視図と平面図である。FIG. 2 is a perspective view and a plan view of an outer ring yoke portion according to the first embodiment of the present invention.
【図３】この発明の実施例１を示し、凹部を有する内輪
磁性部の平面図である。FIG. 3 shows the first embodiment of the present invention and is a plan view of an inner ring magnetic portion having a recess.
【図４】この発明の実施例１を示し、図３の拡大部分平
面図である。FIG. 4 is an enlarged partial plan view of FIG. 3 showing the first embodiment of the present invention.
【図５】この発明の実施例１を示し、樹脂が固着された
内輪磁性部の拡大部分平面図である。FIG. 5 is an enlarged partial plan view of the inner ring magnetic portion to which the resin is fixed according to the first embodiment of the present invention.
【図６】この発明の実施例１を示し、切削加工後の内輪
磁極部の拡大部分平面図である。FIG. 6 is an enlarged partial plan view of the inner ring magnetic pole portion after cutting according to the first embodiment of the present invention.
【図７】この発明の実施例２を示す内輪磁極部の拡大部
分平面図である。FIG. 7 is an enlarged partial plan view of an inner ring magnetic pole portion showing a second embodiment of the present invention.
【図８】この発明の実施例２を示し、内周凸部が形成さ
れた内輪磁極部の平面図である。FIG. 8 is a plan view of an inner ring magnetic pole portion having an inner peripheral convex portion according to the second embodiment of the present invention.
【図９】この発明の実施例３を示し、樹脂が成形固着さ
れた内輪磁極部の平面図である。FIG. 9 is a plan view of the inner ring magnetic pole portion to which the resin is molded and fixed according to the third embodiment of the present invention.
【図１０】この発明の実施例３を示し、スリットが形成
された内輪磁極部の平面図である。FIG. 10 is a plan view of an inner ring magnetic pole portion having slits according to the third embodiment of the present invention.
【図１１】この発明の実施例４を示し、樹脂が固着され
た内輪磁極部の平面図である。FIG. 11 is a plan view of an inner ring magnetic pole portion to which a resin is fixed according to the fourth embodiment of the present invention.
【図１２】この発明の実施例４を示し、スリットが設け
られた内輪磁極部の平面図である。FIG. 12 is a plan view of an inner ring magnetic pole portion having slits according to the fourth embodiment of the present invention.
【図１３】従来の電動機の内輪磁極部の斜視図である。FIG. 13 is a perspective view of an inner ring magnetic pole portion of a conventional electric motor.
５ 外輪ヨーク部 ６ 凹部溝 ７ ポールピース ９ ブリッジ部 １０ 凹部 １１ 内輪磁極部 １２ 樹脂 １３ スリット １５ 内周凸部 １６ 絶縁部 5 Outer ring yoke part 6 Recessed groove 7 Pole piece 9 Bridge part 10 Recessed part 11 Inner ring magnetic pole part 12 Resin 13 Slit 15 Inner peripheral convex part 16 Insulation part
フロントページの続き (72)発明者 木枝 鋼希 中津川市駒場町１番３号 三菱電機株式会 社中津川製作所内 (72)発明者 鵜沢 憲 中津川市駒場町１番３号 三菱電機株式会 社中津川製作所内 (72)発明者 竹腰 幸典 中津川市駒場町１番３号 三菱電機株式会 社中津川製作所内 (72)発明者 見延 正輝 中津川市駒場町１番３号 三菱電機株式会 社中津川製作所内Continued Front Page (72) Inventor Kouki Koeda 1-3-3 Komaba-cho, Nakatsugawa-shi Nakatsugawa Works, Mitsubishi Electric Corporation (72) Inventor Ken Uzawa 1-3 Komaba-cho, Nakatsugawa-shi Nakatsugawa Mitsubishi Electric Corporation (72) Inventor Yukinori Takekoshi 1-3 Komaba-cho Nakatsugawa-shi Nakatsugawa Mfg. Co., Ltd. (72) Masateru Minobu 1-3-3 Komaba-cho Nakatsugawa-shi Nakatsugawa Mfg. Co., Ltd.
Claims (3)
ーク部と、この外輪ヨーク部に嵌合固定され、磁極を構
成する積層構造の複数のポールピースを周方向にそれぞ
れ所定の間隙をもって配列し内周側にてブリッジ部によ
り連結されてなる内輪磁極部とを備え、上記内輪磁極部
のブリッジ部外壁に凹部を形成し、この凹部を含む内輪
磁極部の外壁に樹脂を一体成形にて固着した後、内輪磁
極部内周を切削しブリッジ部に上記凹部と連通されるス
リットを形成したことを特徴とする電動機。1. An outer ring yoke portion, which is formed by laminating thin plates to form an outer ring portion, and a plurality of pole pieces having a laminated structure, which are fitted and fixed to the outer ring yoke portion and constitute magnetic poles, with predetermined gaps in the circumferential direction. An inner ring magnetic pole part arranged and connected by a bridge part on the inner peripheral side, a recess is formed on the outer wall of the bridge part of the inner ring magnetic pole part, and a resin is integrally molded on the outer wall of the inner ring magnetic pole part including this recess The electric motor, characterized in that after the inner ring magnetic pole portion is fixed, the inner periphery of the inner ring magnetic pole portion is cut to form a slit in the bridge portion that communicates with the recess.
ーク部と、この外輪ヨーク部に嵌合固定され、磁極を構
成する積層構造の複数のポールピースを周方向にそれぞ
れ所定の間隙をもって配列し内周側にてブリッジ部によ
り連結されてなる内輪磁極部とを備え、上記ブリッジ部
に上記内輪磁極部中心方向に一体にて突設された内周凸
部を設け、この内周凸部を含む内輪磁極部外壁に樹脂を
一体成形にて固着した後、上記内周凸部を切削しブリッ
ジ部にスリットを設けたことを特徴とする電動機。2. An outer ring yoke portion forming an outer ring portion by laminating thin plates, and a plurality of pole pieces of a laminated structure, which are fitted and fixed to the outer ring yoke portion and form magnetic poles, with predetermined gaps in the circumferential direction. An inner ring magnetic pole part arranged and connected by a bridge part on the inner circumference side, the bridge part is provided with an inner circumference convex part integrally projecting in the center direction of the inner ring magnetic pole part, and an inner ring including this inner circumference convex part An electric motor characterized in that after resin is integrally molded and fixed to the outer wall of the magnetic pole portion, the inner peripheral convex portion is cut to provide a slit in the bridge portion.
ーク部と、この外輪ヨーク部に嵌合固定され、磁極を構
成する積層構造の複数のポールピースを周方向にそれぞ
れ所定の間隙をもって配列し内周側にてブリッジ部によ
り連結されてなる内輪磁極部とを備え、上記内輪磁極部
の外壁に樹脂を一体成形にて固着した後、上記ブリッジ
部に分断加工を加え、スリットを形成したことを特徴と
する電動機。3. An outer ring yoke portion forming an outer ring portion by laminating thin plates, and a plurality of pole pieces having a laminated structure, which are fitted and fixed to the outer ring yoke portion and constitute magnetic poles, with predetermined gaps in the circumferential direction. Equipped with an inner ring magnetic pole part arranged and connected by a bridge part on the inner peripheral side, resin is integrally molded and fixed to the outer wall of the inner ring magnetic pole part, and then a dividing process is applied to the bridge part to form a slit. Electric motor characterized by
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3184392A JPH0564384A (en) | 1991-02-21 | 1992-02-19 | Electric motor |
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3-27235 | 1991-02-21 | ||
| JP3-27456 | 1991-02-21 | ||
| JP2723591 | 1991-02-21 | ||
| JP2745691 | 1991-02-21 | ||
| JP2723691 | 1991-02-21 | ||
| JP3-27236 | 1991-02-21 | ||
| JP3184392A JPH0564384A (en) | 1991-02-21 | 1992-02-19 | Electric motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0564384A true JPH0564384A (en) | 1993-03-12 |
Family
ID=27458644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3184392A Pending JPH0564384A (en) | 1991-02-21 | 1992-02-19 | Electric motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0564384A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2868625B2 (en) * | 1995-05-18 | 1999-03-10 | ゲルハルト ガイガー ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー | Flakes used in electric machines |
| JP2000152528A (en) * | 1998-11-12 | 2000-05-30 | Sankyo Seiki Mfg Co Ltd | Multipole core, inner armature using the same, and method of manufacturing the same |
| JP2005348522A (en) * | 2004-06-03 | 2005-12-15 | Hitachi Ltd | Electric power steering motor and manufacturing method thereof |
| CN102340190A (en) * | 2011-09-16 | 2012-02-01 | 天津市松正电动汽车技术股份有限公司 | Laminate structure of stator iron core of motor |
| CN102522860A (en) * | 2011-11-25 | 2012-06-27 | 美的威灵电机技术（上海）有限公司 | Method for manufacturing segmentation iron core of closed slot stator |
| CN107294234A (en) * | 2017-07-24 | 2017-10-24 | 广东美的环境电器制造有限公司 | The preparation method of field frame assembly, motor and field frame assembly |
| WO2023021977A1 (en) * | 2021-08-20 | 2023-02-23 | 住友重機械工業株式会社 | Method for manufacturing magnetic modulator, magnetic modulator, and magnetic modulation gear |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59129547A (en) * | 1983-01-13 | 1984-07-25 | Matsushita Electric Ind Co Ltd | Molded motor |
| JPS63194542A (en) * | 1987-02-04 | 1988-08-11 | Nippon Denso Co Ltd | Manufacture of armature |
| JPH01122332A (en) * | 1987-11-05 | 1989-05-15 | Matsushita Seiko Co Ltd | Stator core for motor |
-
1992
- 1992-02-19 JP JP3184392A patent/JPH0564384A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59129547A (en) * | 1983-01-13 | 1984-07-25 | Matsushita Electric Ind Co Ltd | Molded motor |
| JPS63194542A (en) * | 1987-02-04 | 1988-08-11 | Nippon Denso Co Ltd | Manufacture of armature |
| JPH01122332A (en) * | 1987-11-05 | 1989-05-15 | Matsushita Seiko Co Ltd | Stator core for motor |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2868625B2 (en) * | 1995-05-18 | 1999-03-10 | ゲルハルト ガイガー ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー | Flakes used in electric machines |
| JP2000152528A (en) * | 1998-11-12 | 2000-05-30 | Sankyo Seiki Mfg Co Ltd | Multipole core, inner armature using the same, and method of manufacturing the same |
| JP2005348522A (en) * | 2004-06-03 | 2005-12-15 | Hitachi Ltd | Electric power steering motor and manufacturing method thereof |
| CN102340190A (en) * | 2011-09-16 | 2012-02-01 | 天津市松正电动汽车技术股份有限公司 | Laminate structure of stator iron core of motor |
| CN102522860A (en) * | 2011-11-25 | 2012-06-27 | 美的威灵电机技术（上海）有限公司 | Method for manufacturing segmentation iron core of closed slot stator |
| CN107294234A (en) * | 2017-07-24 | 2017-10-24 | 广东美的环境电器制造有限公司 | The preparation method of field frame assembly, motor and field frame assembly |
| WO2023021977A1 (en) * | 2021-08-20 | 2023-02-23 | 住友重機械工業株式会社 | Method for manufacturing magnetic modulator, magnetic modulator, and magnetic modulation gear |
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