JP2002142392A - Permanent magnet motor and electric apparatus using the same - Google Patents
Permanent magnet motor and electric apparatus using the sameInfo
- Publication number
- JP2002142392A JP2002142392A JP2000337109A JP2000337109A JP2002142392A JP 2002142392 A JP2002142392 A JP 2002142392A JP 2000337109 A JP2000337109 A JP 2000337109A JP 2000337109 A JP2000337109 A JP 2000337109A JP 2002142392 A JP2002142392 A JP 2002142392A
- Authority
- JP
- Japan
- Prior art keywords
- permanent magnet
- rotor
- holding plate
- rotor core
- electric motor
- 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.)
- Withdrawn
Links
Landscapes
- Electric Suction Cleaners (AREA)
- Manufacture Of Motors, Generators (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、家庭用電気機器等
に使用される永久磁石形電動機、前記電動機を用いた電
動送風機および、前記電動送風機を用いた電気掃除機お
よびエアータオル等の電気機器に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a permanent magnet type electric motor used for household electric equipment, an electric blower using the electric motor, and an electric equipment such as a vacuum cleaner and an air towel using the electric blower. It is about.
【０００２】[0002]
【従来の技術】従来、家庭用電気機器等に使用される永
久磁石形電動機においては、特開２０００−３７０５３
号公報に開示されているように、非磁性金属材料からな
る永久磁石保持板を回転軸に圧入し回転子鉄心と接着す
るといった回転子構成がとられている。また、回転子の
質量不釣合い分を修正するために永久磁石保持板の端面
を切削してバランス調整を行っている。2. Description of the Related Art Conventionally, in a permanent magnet type electric motor used for home electric appliances and the like, Japanese Patent Application Laid-Open No. 2000-37053 is known.
As disclosed in Japanese Patent Application Laid-Open Publication No. H10-209, a rotor configuration is adopted in which a permanent magnet holding plate made of a non-magnetic metal material is pressed into a rotation shaft and bonded to a rotor core. Further, in order to correct the mass imbalance of the rotor, the balance is adjusted by cutting the end face of the permanent magnet holding plate.
【０００３】[0003]
【発明が解決しようとする課題】以上のような従来の永
久磁石形電動機においては、非磁性金属材料からなる永
久磁石保持板を使用しているため回転子の重量大、高コ
スト化につながっている。さらにこの種の永久磁石形電
動機においては永久磁石保持板の端面を切削することに
よって回転子のバランスを調整しているため、外周面切
削と比べ切削量が増加し、生産性の低下、高コスト化に
つながっている。In the above-described conventional permanent magnet type motor, a permanent magnet holding plate made of a non-magnetic metal material is used, which leads to an increase in the weight and cost of the rotor. I have. Furthermore, in this type of permanent magnet type motor, the balance of the rotor is adjusted by cutting the end face of the permanent magnet holding plate, so the amount of cutting increases compared to cutting the outer peripheral surface, reducing productivity and increasing cost. Has led to
【０００４】したがって本発明は、軽量化、生産性の向
上および低コスト化を実現できる回転子を有する永久磁
石形電動機を提供することを目的とする。Accordingly, an object of the present invention is to provide a permanent magnet type motor having a rotor capable of realizing a reduction in weight, an improvement in productivity and a reduction in cost.
【０００５】また、前記永久磁石形電動機を用いた電動
送風機、さらに前記電動送風機を用いた電気掃除機およ
びエアータオル等の電気機器の低騒音・低振動を実現す
ることを目的とする。It is another object of the present invention to realize low noise and low vibration of an electric blower using the permanent magnet type electric motor, and electric appliances such as a vacuum cleaner and an air towel using the electric blower.
【０００６】[0006]
【課題を解決するための手段】この課題を解決するため
に本発明の第１の特徴は、永久磁石形電動機における回
転子を構成する永久磁石保持板の材料として合成樹脂を
使用し、前記永久磁石保持板を熱溶着にて回転子鉄心ま
たは回転軸に結合させることにある。In order to solve this problem, a first feature of the present invention is to use a synthetic resin as a material of a permanent magnet holding plate constituting a rotor in a permanent magnet type electric motor, The magnet holding plate is bonded to the rotor core or the rotating shaft by heat welding.
【０００７】本発明の第２の特徴は、永久磁石形電動機
において、回転子のバランス調整を行うために、回転子
鉄心を回転子外周面と永久磁石との間の厚みが最大とな
る角度方向の位置を中心に切削することにある。A second feature of the present invention is that, in a permanent magnet type electric motor, in order to adjust the balance of the rotor, the rotor core is moved in the angular direction where the thickness between the outer peripheral surface of the rotor and the permanent magnet is maximized. Cutting around the position.
【０００８】[0008]
【発明の実施の形態】本発明の請求項１に記載の発明
は、回転軸に固定され、外周近辺に複数の穴を有する回
転子鉄心と、前記回転子鉄心の穴に埋め込まれた永久磁
石を有する回転子において、回転子鉄心の端面または永
久磁石の端面に接し回転軸に固定された合成樹脂からな
る永久磁石保持板を有することを特徴とする永久磁石形
電動機であり、容易に回転子の軽量化、低騒音・低振動
および低コスト化が図れる。DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is directed to a rotor core fixed to a rotating shaft and having a plurality of holes near the outer periphery, and a permanent magnet embedded in the hole of the rotor core. A permanent magnet type electric motor characterized by having a permanent magnet holding plate made of a synthetic resin fixed to a rotating shaft in contact with an end surface of a rotor core or an end surface of a permanent magnet. Weight, low noise, low vibration and low cost.
【０００９】本発明の請求項２に記載の発明は、請求項
１の永久磁石保持板を、熱溶着にて回転子鉄心または回
転軸に結合させた回転子を有することを特徴とする永久
磁石形電動機であり、永久磁石保持板を回転軸または回
転子鉄心に強固に保持固定できる。According to a second aspect of the present invention, there is provided a permanent magnet having a rotor in which the permanent magnet holding plate of the first aspect is joined to a rotor core or a rotating shaft by heat welding. It is a shape motor, and can firmly hold and fix the permanent magnet holding plate to the rotating shaft or rotor core.
【００１０】本発明の請求項３に記載の発明は、回転軸
に固定され、外周近辺に複数の角穴を有する回転子鉄心
と、前記回転子鉄心の角穴に埋め込まれた平板形状の永
久磁石を有する回転子において、回転子外周面と永久磁
石との間の厚みが最大となる角度方向の位置を中心に、
回転子鉄心および永久磁石保持板の外周面を切削するこ
とで、回転子のバランスを調整することを特徴とする永
久磁石形電動機であり、外周面からの切削深さを規制す
ることにより、永久磁石を保持可能な回転子鉄心の最小
板幅が確保できるため、回転子のバランス調整を容易に
行うことが可能となる。According to a third aspect of the present invention, there is provided a rotor core fixed to a rotating shaft and having a plurality of square holes near the outer periphery, and a flat plate-shaped permanent core embedded in the square holes of the rotor core. In a rotor having a magnet, centering on the angular position where the thickness between the rotor outer peripheral surface and the permanent magnet is maximized,
This is a permanent magnet type electric motor characterized by adjusting the balance of the rotor by cutting the outer peripheral surface of the rotor core and the permanent magnet holding plate, and by controlling the cutting depth from the outer peripheral surface, Since the minimum width of the rotor core that can hold the magnet can be secured, the balance adjustment of the rotor can be easily performed.
【００１１】本発明の請求項４に記載の発明は、請求項
３において、バランス調整の位置決めを行うための凹部
または凸部を永久磁石保持板に設けたことを特徴とする
永久磁石形電動機であり、バランス調整のために回転子
鉄心および永久磁石保持板の切削箇所を容易に割り出す
ことができる。According to a fourth aspect of the present invention, there is provided a permanent magnet type electric motor according to the third aspect, wherein a concave portion or a convex portion for positioning for balance adjustment is provided on the permanent magnet holding plate. In addition, it is possible to easily determine the cut portions of the rotor core and the permanent magnet holding plate for balance adjustment.
【００１２】本発明の請求項５に記載の発明は、請求項
３記載の永久磁石形電動機であって、回転子鉄心に永久
磁石の穴とは別の穴（嵌合防止穴）を設けたことを特徴
とする永久磁石形電動機であり、永久磁石保持板の回転
を防止することが可能であり、その取り付け強度を向上
させることができる。According to a fifth aspect of the present invention, there is provided the permanent magnet type electric motor according to the third aspect, wherein a hole (fitting prevention hole) different from the hole of the permanent magnet is provided in the rotor core. A permanent magnet type electric motor characterized in that rotation of the permanent magnet holding plate can be prevented, and its mounting strength can be improved.
【００１３】本発明の請求項６に記載の発明は、請求項
１から請求項５のいずれか１項に記載の電動機を用いた
ことを特徴とする電動送風機であり、電動送風機の低騒
音・低振動を実現することが可能である。According to a sixth aspect of the present invention, there is provided an electric blower using the electric motor according to any one of the first to fifth aspects, wherein the electric blower has low noise and low noise. Low vibration can be realized.
【００１４】本発明の請求項７に記載の発明は、請求項
６記載の電動送風機を用いたことを特徴とする電気掃除
機であり、電気掃除機の低騒音・低振動を実現すること
が可能である。According to a seventh aspect of the present invention, there is provided a vacuum cleaner using the electric blower according to the sixth aspect, wherein the vacuum cleaner has low noise and low vibration. It is possible.
【００１５】本発明の請求項８に記載の発明は、請求項
６記載の電動送風機を用いたことを特徴とするエアータ
オルであり、エアータオルの低騒音・低振動を実現する
ことが可能である。According to an eighth aspect of the present invention, there is provided an air towel using the electric blower according to the sixth aspect, and it is possible to realize low noise and low vibration of the air towel. is there.
【００１６】[0016]
【実施例】次に、本発明の具体例を用いて説明する。Next, the present invention will be described with reference to specific examples.
【００１７】図１は本発明の永久磁石形電動機の回転子
構造断面を、図２は本発明の熱溶着後の回転子断面を、
図３は本発明の回転子鉄心およびバランス調整位置を示
したものである。FIG. 1 is a cross-sectional view of a rotor structure of a permanent magnet type electric motor according to the present invention, and FIG. 2 is a cross-sectional view of a rotor after heat welding according to the present invention.
FIG. 3 shows the rotor core and the balance adjustment position of the present invention.
【００１８】１は回転子鉄心、２は回転軸、３は合成樹
脂からなる永久磁石保持板、４はバランス調整のための
外周面切削部、５はバランス調整位置決め用の穴または
凹部または凸部、６は永久磁石、９は熱溶着用の溝、１
０はバランス調整のための外周面切削中心位置、および
１１は回転防止穴を示す。1 is a rotor core, 2 is a rotating shaft, 3 is a permanent magnet holding plate made of synthetic resin, 4 is an outer peripheral surface cut portion for balance adjustment, 5 is a hole or concave or convex portion for balance adjustment positioning. , 6 are permanent magnets, 9 is a groove for heat welding, 1
0 indicates a center position of cutting the outer peripheral surface for balance adjustment, and 11 indicates a rotation preventing hole.
【００１９】図１に示すように、回転子鉄心１の外周近
辺に設けた複数の角穴に永久磁石６を埋め込み、前記回
転子鉄心１を回転軸４に固定する。合成樹脂からなる永
久磁石保持板３は回転子鉄心１の両端面または永久磁石
６の両端面に接するように取り付ける。取付は図２に示
すように、回転防止穴１１に永久磁石保持板３の回転子
鉄心１に接する面に形成された凸部を嵌合させて行う。
さらに、回転軸４に設けた溝９に合成樹脂からなる永久
磁石保持板３を熱溶着し固定する。回転子のバランス調
整時には、合成樹脂からなる永久磁石保持板３に設けた
穴または凹部または凸部を基準位置として回転子の外周
面と永久磁石６との厚みが最大となる角度方向の位置を
割り出し、図３に示すように、その位置を外周面切削中
心位置１０として回転子鉄心１および永久磁石保持板３
の外周面を切削する。As shown in FIG. 1, permanent magnets 6 are embedded in a plurality of square holes provided near the outer periphery of the rotor core 1, and the rotor core 1 is fixed to the rotating shaft 4. The permanent magnet holding plate 3 made of synthetic resin is attached so as to be in contact with both end surfaces of the rotor core 1 or both end surfaces of the permanent magnet 6. As shown in FIG. 2, the mounting is performed by fitting a protrusion formed on a surface of the permanent magnet holding plate 3 which is in contact with the rotor core 1 into the rotation preventing hole 11.
Further, the permanent magnet holding plate 3 made of synthetic resin is fixed to the groove 9 provided on the rotating shaft 4 by heat welding. When adjusting the balance of the rotor, the position in the angular direction at which the thickness between the outer peripheral surface of the rotor and the permanent magnet 6 is maximized is determined with reference to a hole, a concave portion, or a convex portion provided in the permanent magnet holding plate 3 made of synthetic resin. As shown in FIG. 3, the position is set as the outer peripheral surface cutting center position 10 and the rotor core 1 and the permanent magnet holding plate 3 are set.
Cut the outer peripheral surface of.
【００２０】[0020]
【発明の効果】以上のように請求項１および請求項２に
記載の発明によれば、永久磁石形電動機における回転子
を構成する永久磁石保持板の材料として合成樹脂を使用
することにより、容易に回転子の軽量化、低コスト化を
図ることができる。As described above, according to the first and second aspects of the present invention, it is easy to use a synthetic resin as a material of a permanent magnet holding plate constituting a rotor in a permanent magnet type electric motor. In addition, the weight and cost of the rotor can be reduced.
【００２１】請求項３および請求項４に記載の発明によ
れば、回転子のバランスを調整するために、回転子外周
面と永久磁石との間の厚みが最大となる角度方向の位置
を中心に回転子鉄心および永久磁石保持板の外周面を切
削することにより、容易にバランス調整工程の自動化が
図れ、生産性向上、低コストに大きく貢献できる。According to the third and fourth aspects of the present invention, in order to adjust the balance of the rotor, the position in the angular direction where the thickness between the outer peripheral surface of the rotor and the permanent magnet is maximized is centered. By cutting the outer peripheral surfaces of the rotor core and the permanent magnet holding plate, the balance adjustment process can be easily automated, greatly contributing to productivity improvement and low cost.
【００２２】本発明の請求項６に記載の発明によれば、
低騒音・低振動である電動送風機を提供することができ
る。According to the invention described in claim 6 of the present invention,
An electric blower with low noise and low vibration can be provided.
【００２３】本発明の請求項７に記載の発明によれば、
低騒音・低振動である電気掃除機を提供することができ
る。According to the invention described in claim 7 of the present invention,
A vacuum cleaner having low noise and low vibration can be provided.
【００２４】本発明の請求項８に記載の発明によれば、
低騒音・低振動であるエアータオルを提供することがで
きる。According to the invention described in claim 8 of the present invention,
An air towel with low noise and low vibration can be provided.
【図１】本発明の永久磁石形電動機の回転子構造断面図FIG. 1 is a sectional view of a rotor structure of a permanent magnet type electric motor of the present invention.
【図２】熱溶着後の永久磁石保持板の取付状態を示す図FIG. 2 is a diagram showing an attached state of a permanent magnet holding plate after heat welding.
【図３】回転子鉄心形状およびバランス調整位置を示す
図FIG. 3 is a diagram showing a rotor core shape and a balance adjustment position.
【図４】従来の永久磁石形電動機の回転子構造断面図FIG. 4 is a sectional view of a rotor structure of a conventional permanent magnet type electric motor.
１ 回転子鉄心 ２ 回転軸 ３ 合成樹脂からなる永久磁石保持板 ４ 外周面切削部 ５ バランス調整位置決め用の穴または凹部または凸
部 ６ 永久磁石 ７ 非磁性体金属からなる永久磁石保持板 ８ 永久磁石保持板端面の切削部 ９ 熱溶着用の溝 １０ 外周面切削中心位置 １１ 回転防止穴DESCRIPTION OF SYMBOLS 1 Rotor iron core 2 Rotating shaft 3 Permanent magnet holding plate made of synthetic resin 4 Peripheral surface cutting part 5 Hole or concave part or convex part for balance adjustment positioning 6 Permanent magnet 7 Permanent magnet holding plate made of non-magnetic metal 8 Permanent magnet Cutting part of holding plate end face 9 Groove for heat welding 10 Outer surface cutting center position 11 Rotation prevention hole
───────────────────────────────────────────────────── フロントページの続き (72)発明者 藤田 克敏 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 Ｆターム(参考） 3B006 FA01 5H615 AA01 BB01 BB14 PP02 PP06 PP24 SS05 SS08 SS18 SS19 SS54 TT26 5H622 CA02 CA07 CA10 CB03 PP03 PP11 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Katsutoshi Fujita 1006 Kazuma Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. F term (reference) 3B006 FA01 5H615 AA01 BB01 BB14 PP02 PP06 PP24 SS05 SS08 SS18 SS19 SS54 TT26 5H622 CA02 CA07 CA10 CB03 PP03 PP11
Claims (8)
有する回転子鉄心と、前記回転子鉄心の穴に埋め込まれ
た永久磁石を有する回転子とし、スロット部に巻線を施
した固定子とからなる永久磁石形電動機であって、回転
子鉄心の端面または永久磁石の端面に接し回転軸に固定
された合成樹脂からなる永久磁石保持板を有することを
特徴とする永久磁石形電動機。1. A rotor having a rotor core fixed to a rotating shaft and having a plurality of holes around its outer periphery, and a rotor having permanent magnets embedded in the holes of the rotor core, wherein a slot is provided with a winding. A permanent magnet type electric motor comprising a permanent magnet holding plate made of a synthetic resin fixed to a rotating shaft in contact with an end surface of a rotor core or an end surface of a permanent magnet.
て、永久磁石保持板を熱溶着にて回転子鉄心または回転
軸に結合させた回転子を有することを特徴とする永久磁
石形電動機。2. The permanent magnet type electric motor according to claim 1, further comprising a rotor having a permanent magnet holding plate coupled to a rotor core or a rotating shaft by heat welding. .
穴を有する回転子鉄心と、前記回転子鉄心の角穴に埋め
込まれた略平板形状の永久磁石を有する回転子と、スロ
ット部に巻線を施した固定子からなる永久磁石形電動機
であって、回転子外周面と永久磁石との間の厚みが最大
となる角度方向の位置を中心に、回転子鉄心および永久
磁石保持板の外周面を切削することで、回転子のバラン
スを調整することを特徴とする永久磁石形電動機。3. A rotor core fixed to a rotating shaft and having a plurality of square holes near the outer periphery, a rotor having a substantially flat permanent magnet embedded in the square holes of the rotor core, and a slot portion. Permanent magnet type electric motor consisting of a stator with windings wound around the rotor core and a permanent magnet holding plate around an angular position where the thickness between the rotor outer peripheral surface and the permanent magnet is maximized. A permanent magnet type electric motor characterized by adjusting the balance of the rotor by cutting the outer peripheral surface of the rotor.
て、回転子永久磁石保持板に穴または凸部または凹部を
設けたことを特徴とする永久磁石形電動機。4. The permanent magnet type electric motor according to claim 3, wherein the rotor permanent magnet holding plate is provided with a hole, a convex portion or a concave portion.
て、回転子鉄心に永久磁石の穴とは別の穴（嵌合防止
穴）を設けたことを特徴とする永久磁石形電動機。5. The permanent magnet type electric motor according to claim 3, wherein a hole (fitting prevention hole) different from the hole of the permanent magnet is provided in the rotor core.
記載の電動機を用いたことを特徴とする電動送風機。6. An electric blower using the electric motor according to any one of claims 1 to 5.
を特徴とする電気掃除機。7. An electric vacuum cleaner using the electric blower according to claim 6.
を特徴とするエアータオル。8. An air towel using the electric blower according to claim 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000337109A JP2002142392A (en) | 2000-11-06 | 2000-11-06 | Permanent magnet motor and electric apparatus using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000337109A JP2002142392A (en) | 2000-11-06 | 2000-11-06 | Permanent magnet motor and electric apparatus using the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002142392A true JP2002142392A (en) | 2002-05-17 |
Family
ID=18812551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000337109A Withdrawn JP2002142392A (en) | 2000-11-06 | 2000-11-06 | Permanent magnet motor and electric apparatus using the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002142392A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7939985B2 (en) * | 2008-03-12 | 2011-05-10 | Nidec Corporation | Motor and method for manufacturing rotor unit of the motor |
| US8074344B2 (en) | 2007-06-27 | 2011-12-13 | Nidec Corporation | Method of manufacturing rotor holder |
| US8449268B2 (en) | 2006-03-06 | 2013-05-28 | Nidec Corporation | Fan and method for manufacturing the same |
| CN104400383A (en) * | 2014-10-20 | 2015-03-11 | 中山明杰自动化科技有限公司 | Automatic riveting pressing machine for center shaft of permanent magnet stepping motor |
| JP2016116267A (en) * | 2014-12-11 | 2016-06-23 | 株式会社マキタ | Power tool |
-
2000
- 2000-11-06 JP JP2000337109A patent/JP2002142392A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8449268B2 (en) | 2006-03-06 | 2013-05-28 | Nidec Corporation | Fan and method for manufacturing the same |
| US8074344B2 (en) | 2007-06-27 | 2011-12-13 | Nidec Corporation | Method of manufacturing rotor holder |
| US7939985B2 (en) * | 2008-03-12 | 2011-05-10 | Nidec Corporation | Motor and method for manufacturing rotor unit of the motor |
| CN104400383A (en) * | 2014-10-20 | 2015-03-11 | 中山明杰自动化科技有限公司 | Automatic riveting pressing machine for center shaft of permanent magnet stepping motor |
| JP2016116267A (en) * | 2014-12-11 | 2016-06-23 | 株式会社マキタ | Power tool |
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