JPH04285444A - electric motor stator core - Google Patents
electric motor stator coreInfo
- Publication number
- JPH04285444A JPH04285444A JP7240891A JP7240891A JPH04285444A JP H04285444 A JPH04285444 A JP H04285444A JP 7240891 A JP7240891 A JP 7240891A JP 7240891 A JP7240891 A JP 7240891A JP H04285444 A JPH04285444 A JP H04285444A
- Authority
- JP
- Japan
- Prior art keywords
- stator core
- magnetic flux
- electric motor
- width
- flux density
- 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)
- Induction Machinery (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【０００１】0001
【産業上の利用分野】本発明は、電動機に関し、詳しく
は固定子鉄心の歯巾およびヨーク形状に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to electric motors, and more particularly to the tooth width and yoke shape of a stator core.
【０００２】0002
【従来の技術】従来、電動機の固定子鉄心は、図３に示
すように全周にわたって等角度に分割し、同一形状寸法
の歯を形成している。この状態で、固定子鉄心に図４に
示すように巻線（１６スロット４Ｐ）を施し、主巻線と
補助巻線が発生する磁束が同一になるように巻数および
電流値を設定し、さらに主巻線と補助巻線を流れる電流
の位相角がほぼ９０度になるように設定する。この時、
歯部Ｔ１、Ｔ２、Ｔ３を通過する最大磁束は、Ｔ１：主
巻線コイルによる磁束 １Ｔ２：補助巻線コイル
による磁束 １Ｔ３：図５に示すように主巻線コイル
による磁束波形と補助巻線コイルによる磁束波形の交差
する点の磁束即ち波高値に対してｓｉｎ ６０°＝０．
８６６ を示し、主巻線コイルと補助巻線コイルの磁束
を合わせて
０．８６６ ×２＝１．７３
同様に、ヨーク部Ｙ１およびＹ２を流れる磁束は、主巻
線による磁束 ： ０．５ × ０．８６６＝ ０
．４３３補助巻線による磁束： （１ ＋０．５）×
０．８６６＝ １．２９９計
１．７３即ちＴ
３では、Ｔ１またはＴ２と比較して通過する最大磁束が
１．７３倍になり、またヨーク部Ｙ１およびＹ２につい
てもＴ１またはＴ２と比較して、最大磁束が１．７３倍
で磁束密度が不均一になり、電動機の効率を低下させて
いる。2. Description of the Related Art Conventionally, a stator core of an electric motor is divided at equal angles over the entire circumference, as shown in FIG. 3, to form teeth of the same shape and size. In this state, windings (16 slots 4P) are applied to the stator core as shown in Fig. 4, and the number of turns and current value are set so that the magnetic fluxes generated by the main winding and the auxiliary winding are the same. The phase angle of the current flowing through the main winding and the auxiliary winding is set to be approximately 90 degrees. At this time,
The maximum magnetic flux passing through the teeth T1, T2, and T3 is: T1: Magnetic flux due to the main winding coil 1T2: Magnetic flux due to the auxiliary winding coil 1T3: As shown in Figure 5, the magnetic flux waveform due to the main winding coil and the auxiliary winding coil sin 60°=0.
866, and the magnetic flux of the main winding coil and the auxiliary winding coil is 0.866 × 2 = 1.73 Similarly, the magnetic flux flowing through the yoke parts Y1 and Y2 is the magnetic flux due to the main winding: 0.5 × 0.866=0
．． 433 Magnetic flux due to auxiliary winding: (1 +0.5)×
0.866 = 1.299 total
1.73 or T
3, the maximum magnetic flux passing through it is 1.73 times higher than that of T1 or T2, and the maximum magnetic flux of yoke parts Y1 and Y2 is also 1.73 times higher than that of T1 or T2, and the magnetic flux density is unchanged. becomes uniform, reducing the efficiency of the motor.
【０００３】0003
【発明が解決しようとする課題】本発明は、上記従来の
問題点に鑑みなされたもので、電動機の効率のよい固定
子鉄心の形状を提供しようとすることを目的とする。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to provide a highly efficient stator core shape for an electric motor.
【０００４】0004
【課題を解決するための手段】上記目的を達成するため
に、歯部を流れる最大磁束に比例して歯部の巾寸法を設
定し、各歯部の磁束密度を均一になるようにした。また
、固定子鉄心のヨーク部を流れる最大磁束の磁束密度を
上記歯部の磁束密度と均一になるように、ヨーク部巾寸
法を設定するようにした。[Means for Solving the Problems] In order to achieve the above object, the width of the tooth portion is set in proportion to the maximum magnetic flux flowing through the tooth portion, so that the magnetic flux density of each tooth portion is made uniform. Further, the width dimension of the yoke portion is set so that the magnetic flux density of the maximum magnetic flux flowing through the yoke portion of the stator core is equal to the magnetic flux density of the tooth portion.
【０００５】[0005]
【作用】上記の構成によれば、磁束密度の高い歯部（Ｔ
３）の巾寸法を拡げ、他の歯部をその分だけ狭めること
により、各歯部の磁束密度をほぼ同等とし、電動機の効
率をあげることができる。同時に、ヨーク部についても
磁束密度を均一になるように巾を調整することにより電
動機の効率をあげることができる。[Function] According to the above configuration, the tooth portion (T
By widening the width of 3) and narrowing the other tooth portions by that amount, the magnetic flux density of each tooth portion can be made almost equal, and the efficiency of the electric motor can be increased. At the same time, the efficiency of the motor can be increased by adjusting the width of the yoke portion so that the magnetic flux density is uniform.
【０００６】[0006]
【実施例】本発明の実施例を添付図面を参照して詳細に
説明する。図１は本発明の固定子鉄心１の詳細を示す平
面図で、固定子鉄心１の内側に放射状に歯部２が形成さ
れている。図中、具体的に数値で示すようにＴ１および
Ｔ２の歯部巾寸法は ３．５、Ｔ３の歯部巾寸法は ６
．１、Ｔ１とＴ３をつなぐヨーク部Ｙ１巾寸法は ６．
１、Ｔ２とＴ３をつなぐヨーク部Ｙ２巾寸法は ７．５
としている。図２はこの固定子鉄心１に主巻線３および
補助巻線４を巻装した状態を示し、巻数および流れる電
流を調整して、主巻線お３よび補助巻線４による最大磁
束がほぼ同等となるように設定している。従来例で示し
たように、歯部２の巾寸法が均一の場合はＴ１またはＴ
２の磁束密度とＴ３の磁束密度との比は １：１．７３
となり、磁束密度をほぼ同一にするために歯部２の
巾寸法を図１に示すようにＴ１：Ｔ３＝ ３．５：６．
１ ≒ １ ： １．７４としている。同様に、Ｔ１の
巾寸法とヨーク部Ｙ１巾寸法およびヨーク部Ｙ２巾寸法
との比率を １：１．７３ に近づけることにより、
磁束密度をほぼ均一にし、電動機の効率を向上させてい
る。DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a plan view showing details of a stator core 1 of the present invention, in which tooth portions 2 are formed radially inside the stator core 1. As shown in FIG. As shown in the figure, the tooth width dimensions of T1 and T2 are 3.5, and the tooth width dimension of T3 is 6.
．． 1. The width dimension of Y1 of the yoke connecting T1 and T3 is 6.
1. Y2 width dimension of yoke connecting T2 and T3 is 7.5
It is said that Figure 2 shows a state in which the main winding 3 and the auxiliary winding 4 are wound around the stator core 1. By adjusting the number of turns and the flowing current, the maximum magnetic flux due to the main winding 3 and the auxiliary winding 4 is approximately It is set to be equivalent. As shown in the conventional example, when the width dimension of the tooth portion 2 is uniform, T1 or T
The ratio of the magnetic flux density of 2 and the magnetic flux density of T3 is 1:1.73
Therefore, in order to make the magnetic flux density almost the same, the width dimensions of the tooth portion 2 are set as T1:T3=3.5:6 as shown in FIG.
1 ≒ 1: 1.74. Similarly, by bringing the ratio of the width of T1, the width of yoke part Y1, and the width of yoke part Y2 closer to 1:1.73,
It makes the magnetic flux density almost uniform and improves the efficiency of the electric motor.
【０００７】[0007]
【発明の効果】以上のように本発明においては、固定子
鉄心の歯部およびヨーク部を流れる最大磁束の磁束密度
が均一になるように、歯部寸法およびヨーク部寸法を設
定することにより、電動機の効率を向上することができ
る。As described above, in the present invention, by setting the dimensions of the tooth portion and the yoke portion so that the magnetic flux density of the maximum magnetic flux flowing through the tooth portion and the yoke portion of the stator core becomes uniform, The efficiency of the electric motor can be improved.
【図１】本発明の固定子鉄心の詳細を示す平面図である
。FIG. 1 is a plan view showing details of a stator core of the present invention.
【図２】本発明の固定子鉄心に主巻線と補助巻線を巻装
した状態を示す平面である。FIG. 2 is a plan view showing a state in which a main winding and an auxiliary winding are wound around the stator core of the present invention.
【図３】従来の固定子鉄心の詳細を示す平面図である。FIG. 3 is a plan view showing details of a conventional stator core.
【図４】従来の固定子鉄心に主巻線と補助巻線を巻装し
た状態を示す平面である。FIG. 4 is a plan view showing a state in which a main winding and an auxiliary winding are wound around a conventional stator core.
【図５】主巻線コイルと補助巻線コイルの位相差を示す
線図である。FIG. 5 is a diagram showing a phase difference between a main winding coil and an auxiliary winding coil.
１ 固定子鉄心 ２ 歯部 ３ 主巻線 ４ 補助巻線 1 Stator core 2 Teeth 3 Main winding 4 Auxiliary winding
Claims (2)
ロットと歯部を形成し、補助巻線と主巻線を巻装してな
る電動機の固定子鉄心において、上記歯部を流れる最大
磁束に比例して歯部の巾寸法を設定し、各歯部の磁束密
度を均一になるようにしてなることを特徴とする電動機
の固定子鉄心。Claim 1: In a stator core for an electric motor, in which a plurality of slots and teeth are formed radially inside the stator core, and an auxiliary winding and a main winding are wound around the stator core, the maximum magnetic flux flowing through the teeth is as follows: A stator core for an electric motor, characterized in that the width of the teeth is set in proportion to the width of the teeth so that the magnetic flux density of each tooth is uniform.
大磁束の磁束密度を上記歯部の磁束密度と均一になるよ
うに、ヨーク部巾寸法を設定するようにしてなることを
特徴とする請求項１記載の電動機の固定子鉄心。2. A yoke portion width dimension is set so that the magnetic flux density of the maximum magnetic flux flowing through the yoke portion of the stator core is equal to the magnetic flux density of the tooth portion. A stator core for the electric motor according to item 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7240891A JPH04285444A (en) | 1991-03-12 | 1991-03-12 | electric motor stator core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7240891A JPH04285444A (en) | 1991-03-12 | 1991-03-12 | electric motor stator core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04285444A true JPH04285444A (en) | 1992-10-09 |
Family
ID=13488427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7240891A Pending JPH04285444A (en) | 1991-03-12 | 1991-03-12 | electric motor stator core |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04285444A (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000052357A (en) * | 1999-01-28 | 2000-08-25 | 다니구찌 이찌로오, 기타오카 다카시 | Automotive alternator |
| CN1069455C (en) * | 1993-10-21 | 2001-08-08 | 松下电器产业株式会社 | Stator iron core of electric motor |
| KR20020040043A (en) * | 2000-11-23 | 2002-05-30 | 구자홍 | Stator of motor |
| KR100348975B1 (en) * | 1999-02-15 | 2002-08-17 | 미쓰비시덴키 가부시키가이샤 | Dynamo-electric machine |
| KR100385681B1 (en) * | 1999-12-27 | 2003-05-27 | 미쓰비시덴키 가부시키가이샤 | Stator for an automotive alternator |
| EP1445848A3 (en) * | 2000-02-24 | 2004-08-25 | Mitsubishi Denki Kabushiki Kaisha | Alternator |
| KR100455887B1 (en) * | 2001-01-16 | 2004-11-06 | 미쓰비시덴키 가부시키가이샤 | Automotive alternator |
| WO2007066829A1 (en) * | 2005-12-09 | 2007-06-14 | Toyota Jidosha Kabushiki Kaisha | Dynamo-electric machine |
| KR100904027B1 (en) * | 2001-08-30 | 2009-06-22 | 유키오 기노시타 | Electric rotating mechine |
| DE102008032314A1 (en) * | 2008-07-09 | 2010-01-14 | Siemens Aktiengesellschaft | Dynamo-electric machine i.e. permanent magnet excited synchronous motor, has stator including two sets of teeth including different tooth widths, where one of tooth widths is less than other tooth width |
| CN102035272A (en) * | 2009-09-25 | 2011-04-27 | 福特全球技术公司 | Electric machine with multiple phases |
| RU2516246C2 (en) * | 2010-02-05 | 2014-05-20 | Сименс Акциенгезелльшафт | Stator of rotating electric machine with constant excitation |
| CN104410177A (en) * | 2014-07-08 | 2015-03-11 | 顾明 | Stator, corresponding brushless direct current motor and three-phase switch reluctance motor |
| JP2015186403A (en) * | 2014-03-26 | 2015-10-22 | 住友重機械工業株式会社 | Induction motor |
| CN107534328A (en) * | 2015-06-17 | 2018-01-02 | 三菱电机株式会社 | permanent magnet synchronous motor |
| JP2018139494A (en) * | 2018-06-14 | 2018-09-06 | 住友重機械工業株式会社 | Induction motor |
| JPWO2023187880A1 (en) * | 2022-03-28 | 2023-10-05 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5615275B2 (en) * | 1975-04-26 | 1981-04-09 |
-
1991
- 1991-03-12 JP JP7240891A patent/JPH04285444A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5615275B2 (en) * | 1975-04-26 | 1981-04-09 |
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1069455C (en) * | 1993-10-21 | 2001-08-08 | 松下电器产业株式会社 | Stator iron core of electric motor |
| KR20000052357A (en) * | 1999-01-28 | 2000-08-25 | 다니구찌 이찌로오, 기타오카 다카시 | Automotive alternator |
| KR100348975B1 (en) * | 1999-02-15 | 2002-08-17 | 미쓰비시덴키 가부시키가이샤 | Dynamo-electric machine |
| KR100385681B1 (en) * | 1999-12-27 | 2003-05-27 | 미쓰비시덴키 가부시키가이샤 | Stator for an automotive alternator |
| EP1445848A3 (en) * | 2000-02-24 | 2004-08-25 | Mitsubishi Denki Kabushiki Kaisha | Alternator |
| KR20020040043A (en) * | 2000-11-23 | 2002-05-30 | 구자홍 | Stator of motor |
| KR100455887B1 (en) * | 2001-01-16 | 2004-11-06 | 미쓰비시덴키 가부시키가이샤 | Automotive alternator |
| KR100904027B1 (en) * | 2001-08-30 | 2009-06-22 | 유키오 기노시타 | Electric rotating mechine |
| US7764001B2 (en) | 2005-12-09 | 2010-07-27 | Toyota Jidosha Kabushiki Kaisha | Rotating electric machine |
| WO2007066829A1 (en) * | 2005-12-09 | 2007-06-14 | Toyota Jidosha Kabushiki Kaisha | Dynamo-electric machine |
| CN101326697B (en) | 2005-12-09 | 2011-07-06 | 丰田自动车株式会社 | Rotating electrical machines |
| EP1978619A4 (en) * | 2005-12-09 | 2017-03-01 | Toyota Jidosha Kabushiki Kaisha | Dynamo-electric machine |
| DE102008032314A1 (en) * | 2008-07-09 | 2010-01-14 | Siemens Aktiengesellschaft | Dynamo-electric machine i.e. permanent magnet excited synchronous motor, has stator including two sets of teeth including different tooth widths, where one of tooth widths is less than other tooth width |
| CN102035272A (en) * | 2009-09-25 | 2011-04-27 | 福特全球技术公司 | Electric machine with multiple phases |
| RU2516246C2 (en) * | 2010-02-05 | 2014-05-20 | Сименс Акциенгезелльшафт | Stator of rotating electric machine with constant excitation |
| JP2015186403A (en) * | 2014-03-26 | 2015-10-22 | 住友重機械工業株式会社 | Induction motor |
| CN104410177A (en) * | 2014-07-08 | 2015-03-11 | 顾明 | Stator, corresponding brushless direct current motor and three-phase switch reluctance motor |
| CN107534328A (en) * | 2015-06-17 | 2018-01-02 | 三菱电机株式会社 | permanent magnet synchronous motor |
| CN107534328B (en) * | 2015-06-17 | 2019-11-29 | 三菱电机株式会社 | Stator core, permanent magnet synchronous motor and air conditioner |
| JP2018139494A (en) * | 2018-06-14 | 2018-09-06 | 住友重機械工業株式会社 | Induction motor |
| JPWO2023187880A1 (en) * | 2022-03-28 | 2023-10-05 | ||
| WO2023187880A1 (en) * | 2022-03-28 | 2023-10-05 | 三菱電機株式会社 | Stator, electric motor, compressor, refrigeration cycle device, and stator manufacturing method |
| US20250211036A1 (en) * | 2022-03-28 | 2025-06-26 | Mitsubishi Electric Corporation | Stator, motor, compressor, refrigeration cycle apparatus, and manufacturing method of stator |
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