JP2001157429A - Rotor for magneto generator - Google Patents
Rotor for magneto generatorInfo
- Publication number
- JP2001157429A JP2001157429A JP33127599A JP33127599A JP2001157429A JP 2001157429 A JP2001157429 A JP 2001157429A JP 33127599 A JP33127599 A JP 33127599A JP 33127599 A JP33127599 A JP 33127599A JP 2001157429 A JP2001157429 A JP 2001157429A
- Authority
- JP
- Japan
- Prior art keywords
- yoke
- magnet
- rotor
- projection
- blow
- 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
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 abstract description 4
- 238000007664 blowing Methods 0.000 description 10
- 230000020169 heat generation Effects 0.000 description 5
- 238000001816 cooling Methods 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Motor Or Generator Cooling System (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ヨーク内で永久磁
石の表面を覆う磁石保護カバーとを備えた磁石発電機の
回転子に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotor for a magnet generator having a magnet protective cover for covering the surface of a permanent magnet in a yoke.
【０００２】[0002]
【従来の技術】従来のこの種の磁石発電機の回転子は、
筒部の開口端とは反対側が底部で閉塞され、該底部の中
央から筒状のボスが筒部内に突設されているヨークと、
該ヨークの筒部の内周に支持された永久磁石と、ヨーク
内で永久磁石の表面を覆う磁石保護カバーとを備えた構
造であった。2. Description of the Related Art Conventional rotors of this type of magnet generator are:
A yoke in which a side opposite to the opening end of the cylindrical portion is closed at a bottom portion, and a cylindrical boss projects from the center of the bottom portion into the cylindrical portion;
The structure was provided with a permanent magnet supported on the inner periphery of the cylindrical portion of the yoke, and a magnet protection cover for covering the surface of the permanent magnet in the yoke.
【０００３】このような回転子のヨーク内には、固定子
鉄心（電機子鉄心）に固定子コイル（電機子コイル）を
巻装した固定子（電機子）が、固定子鉄心の凸極を永久
磁石に対向させるように配置されて磁石発電機が形成さ
れている。[0003] In the rotor yoke, a stator (armature) in which a stator coil (armature coil) is wound around a stator core (armature core) forms a salient pole of the stator core. The magnet generator is formed so as to face the permanent magnet.
【０００４】近年、磁石発電機の小型化，高出力化に伴
い、固定子コイルの発熱が増加する傾向にある。従来
は、この発熱を抑えるために、コイルの電流密度や抵抗
損を抑えるべく巻線仕様の変更，コイルの含浸，コイル
と鉄心間の絶縁仕様の変更等で放熱効率を上げる等の対
応をしていたが、ヨーク内の限られたスペースで固定子
鉄心の構造や固定子コイルの変更は限界があるため、発
熱が厳しいコイルは更にコイル被覆の耐熱ランクが高い
ものを使用し、コイル焼損を防止する対策をとることが
多い。[0004] In recent years, with the miniaturization and high output of the magnet generator, the heat generation of the stator coil tends to increase. Conventionally, in order to suppress this heat generation, measures have been taken to increase the heat dissipation efficiency by changing the winding specifications, impregnating the coils, and changing the insulation specifications between the coils and the iron core to reduce the current density and resistance loss of the coils. However, since there is a limit to changing the structure of the stator core and changing the stator coil in the limited space in the yoke, coils with severe heat generation should use coils with a higher heat-resistance rank to prevent coil burnout. We often take measures to prevent it.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、コイル
の耐熱性には限界があり、耐熱温度に対して余裕がない
場合があり、対応できない問題点があった。However, the heat resistance of the coil is limited, and there is a case where there is no room for the heat resistance temperature.
【０００６】本発明の目的は、固定子コイルの温度上昇
を抑制することができる磁石発電機の回転子を提供する
ことにある。An object of the present invention is to provide a rotor of a magnet generator which can suppress a rise in temperature of a stator coil.
【０００７】本発明の他の目的は、ヨークの回転方向に
拘らず、固定子コイルの温度上昇を抑制することができ
る磁石発電機の回転子を提供することにある。Another object of the present invention is to provide a rotor of a magnet generator capable of suppressing a rise in the temperature of a stator coil regardless of the rotation direction of a yoke.
【０００８】本発明の他の目的は、各送風突起に作用す
る空気またはオイルの遠心力をやわらげることができる
磁石発電機の回転子を提供することにある。Another object of the present invention is to provide a rotor of a magnet generator capable of reducing the centrifugal force of air or oil acting on each blow projection.
【０００９】本発明の他の目的は、各送風突起を磁石保
護カバーを利用して簡単に形成することができる磁石発
電機の回転子を提供することにある。Another object of the present invention is to provide a rotor of a magnet generator, in which each air-blowing projection can be easily formed using a magnet protection cover.
【００１０】[0010]
【課題を解決するための手段】本発明は、筒部の開口端
とは反対側が底部で閉塞され、該底部の中央に筒状のボ
スが設けられているヨークと、該ヨークの筒部の内周に
支持された永久磁石と、ヨーク内で永久磁石の表面を覆
う筒状部及び前記ヨークの前記底部を覆う環状底部とを
備えた磁石保護カバーとを備えた磁石発電機の回転子を
改良の対象としている。According to the present invention, there is provided a yoke in which a side opposite to an opening end of a cylindrical portion is closed at a bottom portion, and a cylindrical boss is provided at the center of the bottom portion; A rotor of a magnet generator including a permanent magnet supported on the inner periphery, and a magnet protection cover including a cylindrical portion that covers the surface of the permanent magnet in the yoke and an annular bottom that covers the bottom of the yoke. It is targeted for improvement.
【００１１】請求項１に記載の磁石発電機の回転子にお
いては、磁石保護カバーの環状底部には周方向に間欠的
に複数の送風突起が突設されていることを特徴とする。[0011] In the rotor of the magnet generator according to the first aspect, a plurality of ventilation projections are intermittently provided in the annular bottom portion of the magnet protection cover in the circumferential direction.
【００１２】このようになっていると、ヨークの回転に
伴う磁石保護カバーの回転により、その底部の各送風突
起が風を発生して固定子に送風し、固定子コイルを冷却
して発熱を抑制することができる。送風突起は磁石保護
カバーを利用して設けているので、コストの上昇を抑制
することができる。With this configuration, the rotation of the magnet protection cover accompanying the rotation of the yoke causes each of the air-blowing projections at the bottom to generate air and blow air to the stator, thereby cooling the stator coil and generating heat. Can be suppressed. Since the air blow projection is provided using the magnet protection cover, it is possible to suppress an increase in cost.
【００１３】請求項２に記載の磁石発電機の回転子にお
いては、請求項１において、送風突起はヨークの正転，
逆転のいずれの場合でも送風を行えるように正転用送風
突起と逆転用送風突起との二種類が設けられていること
を特徴とする。[0013] In the rotor of the magnet generator according to the second aspect, in the first aspect, the blower projection is configured to rotate the yoke forward,
It is characterized in that two types of air blow projections for normal rotation and air blow for reverse rotation are provided so that air can be blown in any case of reverse rotation.
【００１４】このようになっていると、ヨークが正転，
逆転のいずれの方向に回転しても、固定子コイルを冷却
することができる。With this arrangement, the yoke rotates forward,
The stator coil can be cooled by rotating in either direction of reverse rotation.
【００１５】請求項３に記載の磁石発電機の回転子にお
いては、請求項１または２において、各送風突起の頂部
はヨークの中心側が低く、ヨークの外周側が高くなるよ
うにテーパ形になっていることを特徴とする。According to a third aspect of the present invention, in the rotor of the first or second aspect, the top of each blower projection is tapered so that the center of the yoke is lower and the outer periphery of the yoke is higher. It is characterized by being.
【００１６】このようになっていると、各送風突起に作
用する空気またはオイルの遠心力をやわらげることがで
きる。With this configuration, it is possible to reduce the centrifugal force of the air or oil acting on each blow projection.
【００１７】請求項４に記載の磁石発電機の回転子にお
いては、請求項１，２または３において、各送風突起は
環状底部から切り起こして形成されていることを特徴と
する。According to a fourth aspect of the present invention, in the rotor of the magneto-generator according to the first, second or third aspect, each of the ventilation projections is formed by cutting and raising from the annular bottom.
【００１８】このようになっていると、各送風突起を磁
石保護カバーを利用して、プレス等により簡単に形成す
ることができる。With this configuration, each air blow projection can be easily formed by pressing or the like using the magnet protection cover.
【００１９】[0019]
【発明の実施の形態】図１〜図３は本発明に係る磁石発
電機の回転子における実施の形態の一例を示したもの
で、図１は本例の磁石発電機の回転子の正面図、図２は
固定子を組み込んだ状態での図１のＸ−Ｘ線断面図、図
３は本例で用いている送風突起の側面図である。1 to 3 show an embodiment of a rotor of a magnet generator according to the present invention. FIG. 1 is a front view of a rotor of the magnet generator of the present embodiment. FIG. 2 is a cross-sectional view taken along the line XX of FIG. 1 in a state where the stator is incorporated, and FIG. 3 is a side view of a blower projection used in the present example.
【００２０】本例の磁石発電機の回転子１は、磁性材で
形成されたヨーク２を備えている。このヨーク２は、筒
部２ａの開口端とは反対側が底部２ｂで閉塞され、該底
部２ｂの中央に筒状のボス２ｃが設けられた構造になっ
ている。筒状のボス２ｃは図示しない内燃機関のクラン
ク軸の如き回転軸に嵌め込み固定されて、ヨーク２が回
転軸の回転と一緒に回転するようになっている。ヨーク
２の筒部２ａの内周には、周方向に沿って複数の円弧状
の永久磁石３が接着等により固定されている。これら永
久磁石３は筒部２ａの周方向に異なる極性の磁極が並ぶ
ようにしてヨーク２の径方向に着磁されている。筒部２
ａの内周にヨーク２内には、各永久磁石３を保護する薄
い非磁性材よりなる磁石保護カバー４が設けられてい
る。この磁石保護カバー４は、各永久磁石３の表面を覆
う筒状部４ａと、筒部２ａの開口端側で各永久磁石３の
端面を覆う鍔部４ｂと、ヨーク２の底部２ｂを覆う環状
底部４ｃとが一体に形成された構造になっている。この
ような磁石保護カバー４は、筒状部４ａと鍔部４ｂとが
各永久磁石３に接着或いはかしめ等により固定されてい
る。The rotor 1 of the magnet generator of this embodiment has a yoke 2 formed of a magnetic material. The yoke 2 has a structure in which a side opposite to the open end of the cylindrical portion 2a is closed by a bottom portion 2b, and a cylindrical boss 2c is provided at the center of the bottom portion 2b. The cylindrical boss 2c is fitted and fixed to a rotating shaft such as a crankshaft of an internal combustion engine (not shown) so that the yoke 2 rotates together with the rotation of the rotating shaft. A plurality of arc-shaped permanent magnets 3 are fixed to the inner periphery of the cylindrical portion 2a of the yoke 2 along the circumferential direction by bonding or the like. These permanent magnets 3 are magnetized in the radial direction of the yoke 2 such that magnetic poles of different polarities are arranged in the circumferential direction of the cylindrical portion 2a. Tube part 2
A magnet protection cover 4 made of a thin non-magnetic material for protecting each permanent magnet 3 is provided in the yoke 2 on the inner periphery of a. The magnet protection cover 4 includes a cylindrical portion 4a covering the surface of each permanent magnet 3, a flange portion 4b covering the end surface of each permanent magnet 3 on the open end side of the cylindrical portion 2a, and an annular shape covering the bottom 2b of the yoke 2. It has a structure in which the bottom 4c is integrally formed. In such a magnet protection cover 4, the cylindrical portion 4a and the flange portion 4b are fixed to each permanent magnet 3 by bonding or caulking.
【００２１】このような磁石保護カバー４の環状底部４
ｃには、ヨーク２の正転，逆転のいずれの場合でも送風
を行えるように向きが異なる複数の正転用送風突起５と
複数の逆転用送風突起６との二種類が、径方向に位置の
異なる２つの円周上に周方向に間欠的に設けられてい
る。本例では、複数の正転用送風突起５はα＝45°の角
度で周方向に設けられ、複数の逆転用送風突起６はβ＝
45°の角度で周方向に設けられている。これら正転用送
風突起５と逆転用送風突起６とは、それぞれ磁石保護カ
バー４の環状底部４ｃから切り起こして形成されてい
る。正転用送風突起５と逆転用送風突起６とは、互いに
逆方向から切り起こされている。この切り起こし角度
は、図示しないが45°〜60°位が好ましい。また、これ
ら正転用送風突起５と逆転用送風突起６と各頂部５ａ，
６ａは、図３に示すようにヨーク２の中心側が低く、ヨ
ーク２の外周側が高くなるようにθなる角度でテーパ形
になっている。The annular bottom portion 4 of such a magnet protection cover 4
c, a plurality of forward rotation blow projections 5 and a plurality of reverse rotation blow projections 6 having different directions so that air can be blown in both cases of forward rotation and reverse rotation of the yoke 2, and two types of radial protrusions. It is provided intermittently in the circumferential direction on two different circles. In this example, the plurality of forward rotation air blow projections 5 are provided in the circumferential direction at an angle of α = 45 °, and the plurality of reverse rotation air blow projections 6 are β =
It is provided in the circumferential direction at an angle of 45 °. The forward rotation blow projection 5 and the reverse rotation blow projection 6 are formed by cutting and raising from the annular bottom 4c of the magnet protection cover 4, respectively. The forward rotation blow projection 5 and the reverse rotation blow projection 6 are cut and raised from opposite directions. The cut-and-raised angle is not shown, but is preferably about 45 ° to 60 °. Further, the forward rotation blow projection 5, the reverse rotation blow projection 6, and the tops 5 a,
6a is tapered at an angle of θ so that the center side of the yoke 2 is lower and the outer peripheral side of the yoke 2 is higher as shown in FIG.
【００２２】このような回転子のヨーク２内には、環状
の固定子鉄心（電機子鉄心）７の外周に突設された複数
の凸極７ａに固定子コイル（電機子コイル）８をそれぞ
れ巻装した固定子（電機子）９が、固定子鉄心７の凸極
７ａを永久磁石３に対向させるように配置されて、図示
しない内燃機関のクランクケース等に固定されている。
前述した正転用送風突起５と逆転用送風突起６とは、固
定子コイル８に対向できる位置に設けられている。In the yoke 2 of such a rotor, stator coils (armature coils) 8 are respectively provided on a plurality of salient poles 7a protruding from an outer periphery of an annular stator core (armature core) 7. A wound stator (armature) 9 is arranged so that the salient pole 7a of the stator core 7 faces the permanent magnet 3, and is fixed to a crankcase or the like of an internal combustion engine (not shown).
The above-described forward rotation blow projection 5 and reverse rotation blow projection 6 are provided at positions where they can face the stator coil 8.
【００２３】これら回転子１と固定子９により磁石発電
機が形成されている。The rotor 1 and the stator 9 form a magnet generator.
【００２４】このように磁石保護カバー４の環状底部４
ｃには周方向に間欠的にそれぞれ複数の正転用送風突起
５と逆転用送風突起６とを設けると、ヨーク２の回転に
伴う磁石保護カバー４の回転により、その底部の正転用
送風突起５と逆転用送風突起６との何れかが風を発生し
て固定子９の固定子コイル８にに送風し、該固定子コイ
ル８を冷却して発熱を抑制することができる。正転用送
風突起５と逆転用送風突起６とは磁石保護カバー４を利
用して設けているので、コストの上昇を抑制することが
できる。As described above, the annular bottom portion 4 of the magnet protection cover 4
When a plurality of forward rotation airflow projections 5 and reverse rotation airflow projections 6 are provided intermittently in the circumferential direction, the rotation of the magnet protection cover 4 accompanying the rotation of the yoke 2 causes the forward rotation airflow projections 5 on the bottom thereof to be provided. Either one of the blower projections 6 and the reverse rotation blowing projection 6 generates wind and blows it to the stator coil 8 of the stator 9, thereby cooling the stator coil 8 and suppressing heat generation. Since the forward rotation blow projection 5 and the reverse rotation blow projection 6 are provided using the magnet protection cover 4, an increase in cost can be suppressed.
【００２５】特に、本例のように、ヨーク２に正転用送
風突起５と逆転用送風突起６との二種類を設けると、ヨ
ーク２が正転，逆転のいずれの方向に回転しても、固定
子コイル８を冷却することができる。In particular, if the yoke 2 is provided with two types of the forward rotation air blow projections 5 and the reverse rotation air blow projections 6 as in the present embodiment, even if the yoke 2 rotates in either the forward or reverse direction, The stator coil 8 can be cooled.
【００２６】また、正転用送風突起５と逆転用送風突起
６との頂部５ａ，６ａを、ヨーク２の中心側が低く、ヨ
ーク２の外周側が高くなるようにテーパ形になっている
と、、各送風突起５，６に作用する空気またはオイル
（ヨーク２が図２に示すよう二縦向きになっていて、そ
の下部がオイル中に入れられている場合）の遠心力をや
わらげることができる。If the tops 5a and 6a of the forward rotation blow projection 5 and the reverse rotation blow projection 6 are tapered so that the center side of the yoke 2 is lower and the outer peripheral side of the yoke 2 is higher. It is possible to reduce the centrifugal force of air or oil acting on the air blow projections 5 and 6 (when the yoke 2 is vertically oriented as shown in FIG. 2 and its lower part is put in the oil).
【００２７】更に、正転用送風突起５と逆転用送風突起
６とが環状底部４ｃから切り起こして形成されている
と、各送風突起５，６を磁石保護カバー４を利用して、
プレス等により簡単に形成することができる。Further, when the forward rotation air blow projection 5 and the reverse rotation air blow projection 6 are formed by cutting and raising from the annular bottom portion 4c, each of the air blow projections 5 and 6 is formed by using the magnet protection cover 4.
It can be easily formed by pressing or the like.
【００２８】なお、ヨーク２の回転が正転か逆転のいず
れか一方に定まっている場合には、その回転方向に応じ
て正転用送風突起５と逆転用送風突起６とのいずれか一
方を設ければよい。When the rotation of the yoke 2 is determined to be either forward rotation or reverse rotation, one of the forward rotation blow projection 5 and the reverse rotation blow projection 6 is provided according to the rotation direction. Just do it.
【００２９】また、正転用送風突起５と逆転用送風突起
６とは、環状底部４ｃから切り起こして設ける以外に、
接着や溶接等により環状底部４ｃに固定することもでき
る。The forward rotation blow projection 5 and the reverse rotation blow projection 6 are provided by cutting and raising from the annular bottom portion 4c.
It can also be fixed to the annular bottom 4c by bonding, welding, or the like.
【００３０】[0030]
【発明の効果】請求項１に記載の磁石発電機の回転子で
は、磁石保護カバーの環状底部に周方向に間欠的に複数
の送風突起を突設しているので、ヨークの回転に伴う磁
石保護カバーの回転により、その底部の各送風突起が風
を発生して固定子に送風し、固定子コイルを冷却して発
熱を抑制することができる。送風突起は磁石保護カバー
を利用して設けているので、コストの上昇を抑制するこ
とができる。According to the rotor of the magnet generator according to the first aspect of the present invention, since a plurality of ventilation projections are intermittently provided in the circumferential direction at the annular bottom of the magnet protection cover, the magnets associated with the rotation of the yoke. Due to the rotation of the protective cover, each of the air blowing protrusions at the bottom generates air to blow air to the stator, thereby cooling the stator coil and suppressing heat generation. Since the air blow projection is provided using the magnet protection cover, it is possible to suppress an increase in cost.
【００３１】請求項２に記載の磁石発電機の回転子にお
いては、送風突起として、ヨークの正転，逆転のいずれ
の場合でも送風を行えるように正転用送風突起と逆転用
送風突起との二種類が設けられているので、ヨークが正
転，逆転のいずれの方向に回転しても、固定子コイルを
冷却することができる。[0031] In the rotor of the magnet generator according to the second aspect of the present invention, the air blow projection includes a forward air blow projection and a reverse air blow projection so that air can be blown in either case of forward rotation or reverse rotation of the yoke. Since the types are provided, the stator coil can be cooled regardless of whether the yoke rotates in the forward or reverse direction.
【００３２】請求項３に記載の磁石発電機の回転子にお
いては、各送風突起の頂部はヨークの中心側が低く、ヨ
ークの外周側が高くなるようにテーパ形になっているの
で、各送風突起に作用する空気またはオイルの遠心力を
やわらげることができる。In the rotor of the magnet generator according to the third aspect, the top of each blowing projection is tapered so that the center side of the yoke is low and the outer peripheral side of the yoke is high. It can reduce the centrifugal force of the working air or oil.
【００３３】請求項４に記載の磁石発電機の回転子にお
いては、各送風突起は環状底部から切り起こして形成さ
れているので、各送風突起を磁石保護カバーを利用し
て、プレス等により簡単に形成することができる。[0033] In the rotor of the magnet generator according to the fourth aspect, since each air-blowing projection is formed by cutting and raising from the annular bottom portion, each air-blowing projection is easily formed by pressing or the like using a magnet protection cover. Can be formed.
【図１】本発明に係る磁石発電機の回転子における実施
の形態の一例を示した正面図である。FIG. 1 is a front view showing an example of an embodiment of a rotor of a magnet generator according to the present invention.
【図２】固定子を組み込んだ状態での図１のＸ−Ｘ線断
面図である。FIG. 2 is a sectional view taken along line XX of FIG. 1 in a state where a stator is incorporated.
【図３】本例で用いている送風突起の側面図である。FIG. 3 is a side view of a blowing projection used in the present example.
１ 回転子 ２ ヨーク ａ 筒部 ２ｂ 底部 ２ｃ ボス ３ 永久磁石 ４ 磁石保護カバー ４ａ 筒状部 ４ｂ 鍔部 ４ｃ 環状底部 ５ 正転用送風突起 ６ 逆転用送風突起 ５ａ，６ａ 頂部 ７ 固定子鉄心（電機子鉄心） ７ａ 凸極 ８ 固定子コイル（電機子コイル） ９ 固定子（電機子） Reference Signs List 1 rotor 2 yoke a cylindrical portion 2b bottom portion 2c boss 3 permanent magnet 4 magnet protection cover 4a cylindrical portion 4b flange portion 4c annular bottom portion 5 forward air blowing projection 6 reverse air blowing projection 5a, 6a top 7 stator core (armature) Iron core 7a Salient pole 8 Stator coil (armature coil) 9 Stator (armature)
Claims (4)
れ、該底部の中央に筒状のボスが設けられているヨーク
と、前記ヨークの前記筒部の内周に支持された永久磁石
と、前記ヨーク内で前記永久磁石の表面を覆う筒状部及
び前記ヨークの前記底部を覆う環状底部とを備えた磁石
保護カバーとを備えた磁石発電機の回転子において、 前記磁石保護カバーの前記環状底部には周方向に間欠的
に複数の送風突起が突設されていることを特徴とする磁
石発電機の回転子。1. A yoke provided with a cylindrical boss provided at the center of the bottom at a side opposite to the opening end of the cylindrical portion, and a permanent yoke supported on the inner periphery of the cylindrical portion of the yoke. A rotor of a magnet generator, comprising: a magnet; and a magnet protection cover including a cylindrical portion that covers a surface of the permanent magnet in the yoke and an annular bottom that covers the bottom of the yoke. A plurality of blower projections intermittently project in the circumferential direction at the annular bottom portion of the rotor of the magnet generator.
のいずれの場合でも送風を行えるように正転用送風突起
と逆転用送風突起との二種類が設けられていることを特
徴とする請求項１に記載の磁石発電機の回転子。2. A blow projection for forward rotation and a blow projection for reverse rotation are provided so that air can be blown in either case of forward rotation or reverse rotation of the yoke. Item 2. A rotor of the magnet generator according to Item 1.
心側が低く、前記ヨークの外周側が高くなるようにテー
パ形になっていることを特徴とする請求項１または２に
記載の磁石発電機の回転子。3. The magnet generator according to claim 1, wherein the top of each of the air blow projections is tapered so that the center side of the yoke is low and the outer peripheral side of the yoke is high. Rotor.
起こして形成されていることを特徴とする請求項１，２
または３に記載の磁石発電機の回転子。4. The air blow projection is formed by cutting and raising from the annular bottom part.
Or a rotor of the magnet generator according to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33127599A JP3702941B2 (en) | 1999-11-22 | 1999-11-22 | Magnet generator rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33127599A JP3702941B2 (en) | 1999-11-22 | 1999-11-22 | Magnet generator rotor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001157429A true JP2001157429A (en) | 2001-06-08 |
| JP3702941B2 JP3702941B2 (en) | 2005-10-05 |
Family
ID=18241879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33127599A Expired - Fee Related JP3702941B2 (en) | 1999-11-22 | 1999-11-22 | Magnet generator rotor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3702941B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7443064B2 (en) | 2005-07-29 | 2008-10-28 | Mitsubishi Denki Kabushiki Kaisha | Permanent-magnet generator having protrusions for dissipating heat |
-
1999
- 1999-11-22 JP JP33127599A patent/JP3702941B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7443064B2 (en) | 2005-07-29 | 2008-10-28 | Mitsubishi Denki Kabushiki Kaisha | Permanent-magnet generator having protrusions for dissipating heat |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3702941B2 (en) | 2005-10-05 |
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