JPH07111199B2 - Blower - Google Patents

Blower

Info

Publication number
JPH07111199B2
JPH07111199B2 JP63237778A JP23777888A JPH07111199B2 JP H07111199 B2 JPH07111199 B2 JP H07111199B2 JP 63237778 A JP63237778 A JP 63237778A JP 23777888 A JP23777888 A JP 23777888A JP H07111199 B2 JPH07111199 B2 JP H07111199B2
Authority
JP
Japan
Prior art keywords
boss
pedestal
blade
rib
stator
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.)
Expired - Lifetime
Application number
JP63237778A
Other languages
Japanese (ja)
Other versions
JPH0286997A (en
Inventor
幸雄 篠田
和弘 安本
一平 萩原
宏二 戸田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP63237778A priority Critical patent/JPH07111199B2/en
Publication of JPH0286997A publication Critical patent/JPH0286997A/en
Publication of JPH07111199B2 publication Critical patent/JPH07111199B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は電子機器等に冷却用として使用される送風機
に関するものである。
TECHNICAL FIELD The present invention relates to a blower used for cooling electronic devices and the like.

〔従来の技術〕[Conventional technology]

第6図は例えば実開昭62−173595号公報に示された従来
の送風機を示す断面図であり、図において(1)はケー
シングを成す基台で、中央部にホルダ(2)が設けられ
ている。(3)はこのホルダに嵌着されたボールベアリ
ングから成る軸受、(4)は上記ホルダ(2)の外周側
壁に設けられたステータコア(5)とこのコアに巻回さ
れたコイル(6)とから成るステータ、(7)は上記軸
受(3)に嵌合し回動可能に設けられた回動軸、(8)
はこの回転軸に固着され上記ステータ(4)を覆うよう
に形成されたボス部(8a)を設けるとともに、外周側に
翼(8b)を設けた羽根で、合成樹脂で成形されている。
(9)は上記ボス部(8a)の上記ステータ(4)との対
向面に設けられたロータヨーク、(10)はこのロータヨ
ークに設けられ上記ステータ(4)と対向するロータマ
グネットである。
FIG. 6 is a cross-sectional view showing a conventional blower disclosed in, for example, Japanese Utility Model Laid-Open No. 62-173595, in which (1) is a base which forms a casing, and a holder (2) is provided at the center. ing. (3) is a bearing consisting of a ball bearing fitted in this holder, (4) is a stator core (5) provided on the outer peripheral side wall of the holder (2), and a coil (6) wound around this core. (7) is a rotating shaft fitted to the bearing (3) and rotatably provided (8)
Is a blade provided with a boss portion (8a) fixed to the rotating shaft and formed so as to cover the stator (4), and a blade provided with a blade (8b) on the outer peripheral side, which is molded of synthetic resin.
(9) is a rotor yoke provided on the surface of the boss (8a) facing the stator (4), and (10) is a rotor magnet provided on the rotor yoke and facing the stator (4).

従来の送風機は上記のように構成され、ステータ(4)
のコイル(6)に通電することにより、磁界が発生し、
ロータマグネット(10)との磁気作用により羽根(8)
は回転軸(7)を中心に回転して送風するようになって
いる。
The conventional blower is constructed as described above, and the stator (4)
A magnetic field is generated by energizing the coil (6) of
Blade (8) due to magnetic action with rotor magnet (10)
Is designed to rotate around a rotating shaft (7) and blow air.

〔発明が解決しようとする課題〕[Problems to be Solved by the Invention]

上記のような従来の送風機では、ロータマグネット(1
0)とステータ(4)との隙間は効率の点からできるだ
け小さく形成しているため、ステータ(4)のボス部
(8b)内で発生する熱の放出は少なく、このため温度上
昇が高く、信頼性、寿命が劣るという課題があった。
In the conventional blower as described above, the rotor magnet (1
Since the gap between 0) and the stator (4) is formed as small as possible from the viewpoint of efficiency, the heat generated in the boss portion (8b) of the stator (4) is not emitted so much and the temperature rise is high. There was a problem that reliability and life were inferior.

この発明は係る課題を解決するためになされたもので、
温度上昇が低く、信頼性が高く、寿命が長い組立性の良
い送風機を得ることを目的とするものである。
The present invention has been made to solve the above problems,
The purpose of the present invention is to obtain a blower that has a low temperature rise, high reliability, and a long service life and is easy to assemble.

〔課題を解決するための手段〕[Means for Solving the Problems]

この発明に係る送風機は、回転軸を軸受を介して回転可
能に挿通したホルダの外周に装着されたステータと、回
転軸に固着され、ステータの外周側を覆うボス部を有す
る羽根と、ボス部のステータとの対向面に羽根と共回り
するように設けられ、ステータに対向するロータマグネ
ットを有するロータヨークとを備え、その羽根のボス部
にロータヨークの軸方向の端部が当る台座を構成すると
ともに、ロータヨークの外周部に内側端が当る複数のボ
スリブを設け、台座とボスリブとにより、羽根のボス部
とロータヨークとの間に一連の通気路を形成したもので
ある。
The blower according to the present invention includes a stator mounted on the outer periphery of a holder having a rotary shaft rotatably inserted through a bearing, a blade having a boss portion fixed to the rotary shaft and covering the outer peripheral side of the stator, and a boss portion. A rotor yoke provided on the surface facing the stator so as to rotate with the blade and having a rotor magnet facing the stator, and a pedestal with which the axial end of the rotor yoke contacts the boss portion of the blade. A plurality of boss ribs whose inner ends abut against each other are provided on the outer peripheral portion of the rotor yoke, and the pedestal and the boss rib form a series of ventilation paths between the boss portion of the blade and the rotor yoke.

また、羽根のボス部の内側に台座とともにかく拌リブを
設けたものである。
Further, a stirring rib is provided inside the boss portion of the blade together with the pedestal.

また、ボスリブと台座とかく拌リブの三者の少なくとも
二者を回転中心に対して放射状に設けたものである。
At least two of the boss rib, the pedestal, and the stirring rib are provided radially with respect to the center of rotation.

また、ボスリブと台座とかく拌リブの三者の少なくとも
隣接する二者を回転方向に所定角度のひねりを付けた直
線又は曲線で形成したものである。
Further, at least two of the boss rib, the pedestal, and the stirring rib, which are adjacent to each other, are formed by a straight line or a curved line having a predetermined angle of twist in the rotational direction.

〔作用〕[Action]

この発明においては、ボス部とロータヨークの間に形成
される通気路を通して外部にステータから発生する熱が
放出されるから温度上昇は低く押さえられ、台座を設け
たから、ロータヨークの位置決めが容易になるととも
に、安定して取着され、かつ台座により風の流れを良く
することが可能となる。
In this invention, since the heat generated from the stator is released to the outside through the ventilation path formed between the boss portion and the rotor yoke, the temperature rise is suppressed to a low level, and the pedestal is provided, which facilitates the positioning of the rotor yoke. Therefore, it is possible to stably attach the pedestal and to improve the flow of wind by the pedestal.

また、ボス部の回転軸面にステータ側に突出するかく拌
リブを設けたから、回転軸固着面側の空気がかく拌さ
れ、冷却効果が向上する。
Further, since the stirring rib protruding toward the stator is provided on the rotation shaft surface of the boss portion, the air on the rotation shaft fixing surface side is stirred and the cooling effect is improved.

また、ボスリブと台座およびかく拌リブの全部、または
ボスリブと台座、あるいはボスリブとかく拌リブ、また
は、台座とかく拌リブを回転軸に対し放射状に設け、ま
た、所定角度、所定曲線で形成したから、これらボスリ
ブ、台座、かく拌リブが送風翼の機能を有し、送風性が
向上する。
Further, since the boss rib and the pedestal and the stirring rib are all provided, or the boss rib and the pedestal, or the boss rib and the stirring rib, or the pedestal and the stirring rib are provided radially with respect to the rotation axis, and are formed at a predetermined angle and a predetermined curve, The boss ribs, the pedestal, and the stirring ribs have the function of a blower blade, and the blowability is improved.

〔実施例〕〔Example〕

第1図この発明の一実施例を示す断面図、第2図は同じ
く羽根のボス部の半分を示す斜視図、第3図は同じくボ
ス部を示す正面図であり、(1)〜(10)は上記従来例
と同一または相当部分を示し、(11)はボス部(8a)の
内面にボス部(8a)と一体成形によりステータ(4)側
に回転軸(7)中心に対し放射状に複数突出し、ロータ
ヨーク(9)の外周部にその内側端が当るボスリブ、
(12)はこのボスリブに直線的に連設されボスリブの下
部に突設された台座で、この台座の上面と上記ボスリブ
の先端に断面L字状でリング状に形成したロータヨーク
(9)が設けられ、ロータヨーク(9)とボス部(8a)
内周側壁との間には台座(12)端部からボスリブ(11)
端部に至る通気路(13)が形成される。(14)はこの台
座の下部に連設され、上記ボスリブ(11)と上記台座
(12)とは所定角度を有し、ボス部(8a)の回転軸
(7)固着面(8c)に突出して設けられたかく拌リブで
ある。
FIG. 1 is a sectional view showing an embodiment of the present invention, FIG. 2 is a perspective view showing a half of a boss portion of a blade, and FIG. 3 is a front view showing a boss portion of the same. ) Indicates the same or corresponding portion as the above conventional example, and (11) is formed integrally with the boss portion (8a) on the inner surface of the boss portion (8a) so that it is radially formed on the stator (4) side with respect to the center of the rotating shaft (7). A plurality of boss ribs protruding from the inner edge of the rotor yoke (9),
(12) is a pedestal that is linearly connected to the boss rib and protrudes from a lower portion of the boss rib, and a rotor yoke (9) formed in a ring shape with an L-shaped cross section is provided on the upper surface of the pedestal and the tip of the boss rib. The rotor yoke (9) and the boss (8a)
From the end of the pedestal (12) to the inner side wall, the boss rib (11)
An air passage (13) reaching the end is formed. The boss (11) and the pedestal (12) are arranged at a lower portion of the pedestal so as to be continuous with each other, and the boss (11) and the pedestal (12) protrude from the fixing surface (8c) of the rotating shaft (7) of the boss (8a). It is a stirring rib provided by.

上記のように構成された送風機においては、従来例と同
様に羽根は回転し、基台(1)の一方から吸気し、他方
へ送風する。このとき、ステータ(4)とボス部の回転
軸(7)固着面(8c)との間の空気は、かく拌リブ(1
4)によりかく拌されてステータ(4)で発生する熱交
換を良好にし、熱交換によって温度上昇した空気は破線
矢印のように台座(12)間から通気路(13)内に入り、
ボス部(8a)端部から羽根(8)外に放出される。一
方、羽根(8)外からは、ステータ(4)とロータマグ
ネット(10)との隙間からステータ(4)を冷却しなが
らボス部(8a)内に吸気される。このとき、かく拌リブ
(14)、台座(12)、ボスリブ(11)は送風羽根の機能
を有し、送風量が多くなり、冷却効果が大きくなる。こ
のように、ステータ(4)を冷却することによりステー
タ(4)の温度上昇は低く押さえられ、信頼性および寿
命が向上する。
In the blower configured as described above, the blades rotate as in the conventional example, sucking air from one of the bases (1) and blowing it to the other. At this time, the air between the stator (4) and the fixing surface (8c) of the rotating shaft (7) of the boss portion is separated from the stirring rib (1).
The heat exchange generated in the stator (4) by being agitated by 4) is improved, and the air whose temperature has risen due to the heat exchange enters the ventilation passage (13) from between the pedestals (12) as indicated by the broken line arrow.
It is discharged from the end of the boss (8a) to the outside of the blade (8). On the other hand, from the outside of the blade (8), air is drawn into the boss (8a) while cooling the stator (4) through the gap between the stator (4) and the rotor magnet (10). At this time, the stirring ribs (14), the pedestal (12), and the boss ribs (11) have the function of air blowing blades, increasing the amount of air blowing and increasing the cooling effect. As described above, by cooling the stator (4), the temperature rise of the stator (4) is suppressed to a low level, and the reliability and the life are improved.

台座(12)とボスリブ(11)及びかく拌リブ(14)はい
ずれも羽根(8)のボス部(8a)を補強するため、ボス
部(8a)の肉を薄くしても寿命を長く維持できる。とく
に台座(12)とボスリブ(11)とにより、羽根(8)に
対するロータヨーク(9)の組付が位置決めされるので
容易になり、羽根(8)とロータヨーク(9)とが一体
化し、構造が安定する。
Since the pedestal (12), the boss rib (11), and the stirring rib (14) all reinforce the boss (8a) of the blade (8), the life is maintained long even if the boss (8a) is thinned. it can. In particular, the pedestal (12) and the boss rib (11) facilitate the positioning of the rotor yoke (9) to the blade (8), which facilitates the assembly of the blade (8) and the rotor yoke (9). Stabilize.

また、ボスリブ(11)と台座(12)およびかく拌リブ
(14)の形状、角度等は上記実施例に限られず、第4図
に示すようにボスリブ(11)、台座(12)、かく拌リブ
(14)の全てが、回転軸(7)中心から放射状になるよ
う形成してもよい。
Further, the shapes, angles, etc. of the boss rib (11), the pedestal (12) and the stirring rib (14) are not limited to those in the above embodiment, and as shown in FIG. 4, the boss rib (11), the pedestal (12) and the stirring rib are stirred. All of the ribs (14) may be formed radially from the center of the rotation shaft (7).

さらに、ボスリブ(11)のみを回転軸(7)中心から放
射状に形成し、台座(12)とかく拌リブ(14)を直線的
に形成し、上記ボスリブ(11)と所定の角度を有して設
けてもよく、また、台座(12)のみを回転軸(7)中心
から放射状に形成し、ボスリブ(11)とかく拌リブ(1
4)を上記台座(12)に対して所定の角度を有して設け
てもよい。
Further, only the boss rib (11) is radially formed from the center of the rotating shaft (7), the pedestal (12) and the stirring rib (14) are linearly formed, and the boss rib (11) has a predetermined angle. Alternatively, only the pedestal (12) may be formed radially from the center of the rotating shaft (7), and the boss rib (11) and the stirring rib (1) may be provided.
4) may be provided at a predetermined angle with respect to the pedestal (12).

そしてまた、かく拌リブ(14)のみを回転軸(7)中心
から放射状に形成し、ボスリブ(11)と台座(12)を直
線的に形成し、上記かく拌リブ(14)と所定の角度を有
して設けてもよい。
Further, only the stirring ribs (14) are radially formed from the center of the rotating shaft (7), and the boss ribs (11) and the pedestal (12) are linearly formed to form a predetermined angle with the stirring ribs (14). May be provided.

さらにまた、台座(12)とかく拌リブ(14)を直線的に
回転軸(7)中心から放射状に形成し、ボスリブ(11)
をこの台座(12)を対して所定の角度を有して形成して
もよい。
Furthermore, the pedestal (12) and the stirring ribs (14) are linearly formed radially from the center of the rotating shaft (7), and the boss ribs (11) are formed.
May be formed at a predetermined angle with respect to the pedestal (12).

また、ボスリブ(11)と台座(12)およびかく拌リブ
(14)の全てが回転軸(7)中心に対し所定の角度を有
して形成してもよい。
Further, the boss rib (11), the pedestal (12) and the stirring rib (14) may all be formed at a predetermined angle with respect to the center of the rotation shaft (7).

さらに、第5図に示すようにボスリブ(11)と台座(1
2)およびかく拌リブ(14)は連設されることなく、そ
れぞれに設けてもよい。
Further, as shown in FIG. 5, the boss rib (11) and the pedestal (1
2) and the agitation rib (14) may not be provided in series but may be provided in each.

また、上記のそれぞれにおける角度、形状等はこれに限
られず羽根(8)の回転方向、回転数等に応じて設定す
ればよい。
Further, the angle, shape, etc. in each of the above are not limited to this, and may be set according to the rotation direction, rotation speed, etc. of the blade (8).

〔発明の効果〕〔The invention's effect〕

この発明は以上説明したように構成されていることか
ら、特に羽根ボス部で覆われるステータ部に冷却空気を
流すことができ、従って、温度上昇を低く押さえ、信頼
性、寿命が向上する。特に、台座とボスリブはいずれも
羽根のボス部を補強するため、ボス部の肉を薄くしても
寿命を長く維持でき、台座とボスリブとにより、羽根に
対するロータヨークの組付が位置決めされるので容易に
なり組立性が向上する。
Since the present invention is configured as described above, it is possible to flow the cooling air especially to the stator portion covered by the blade boss portion, and therefore the temperature rise can be suppressed low, and the reliability and the life can be improved. In particular, since both the pedestal and the boss ribs reinforce the boss portion of the blade, the life can be maintained for a long time even if the thickness of the boss portion is thinned, and the assembly of the rotor yoke to the blade is positioned by the pedestal and boss rib. Therefore, the assemblability is improved.

また、羽根のボス部の内側に台座とともにかく拌リブを
設けたことにより、特に冷却性能とボス部の強度が一層
向上する。
Further, since the stirring ribs are provided inside the boss portion of the blade together with the pedestal, the cooling performance and the strength of the boss portion are further improved.

【図面の簡単な説明】[Brief description of drawings]

第1図はこの発明の一実施例を示す断面図、第2図は同
じく羽根(8)のボス部(8a)の半分を示す斜視図、第
3図は同じくボス部(8a)を示す正面図、第4図はこの
発明の他の実施例を示す羽根(8)ボス部(8a)の正面
図、第5図はこの発明のさらに他の実施例を示す羽根
(8)ボス部(8a)の正面図、第6図は従来の送風機を
示す断面図である。 なお、各図中同一符号は同一または相当部分を示し、
(2)はホルダ、(3)は軸受、(4)はステータ、
(7)は回転軸、(8)は羽根、(8a)はボス、(8c)
は固着面、(9)はロータヨーク、(10)はロータマグ
ネット、(11)はボスリブ、(12)は台座、(13)通気
路、(14)はかく拌リブである。
FIG. 1 is a sectional view showing an embodiment of the present invention, FIG. 2 is a perspective view showing a half of a boss portion (8a) of the blade (8), and FIG. 3 is a front view showing the boss portion (8a). FIG. 4 is a front view of a blade (8) boss portion (8a) showing another embodiment of the present invention, and FIG. 5 is a blade (8) boss portion (8a) showing still another embodiment of the present invention. ) Is a front view and FIG. 6 is a sectional view showing a conventional blower. In the drawings, the same reference numerals indicate the same or corresponding parts,
(2) is a holder, (3) is a bearing, (4) is a stator,
(7) is a rotating shaft, (8) is a blade, (8a) is a boss, (8c)
Is a fixed surface, (9) is a rotor yoke, (10) is a rotor magnet, (11) is a boss rib, (12) is a pedestal, (13) a ventilation path, and (14) is a stirring rib.

───────────────────────────────────────────────────── フロントページの続き (72)発明者 戸田 宏二 岐阜県中津川市手賀野字下巾3―40 三菱 電機エンジニアリング株式会社名古屋事業 所中津川支所内 (56)参考文献 特開 昭62−173595(JP,A) 特開 昭53−88806(JP,A) 実公 昭28−12352(JP,Y1) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Koji Toda, Nakatsugawa Branch, Nakatsugawa Branch, Mitsubishi Electric Engineering Co., Ltd. 3-40 Shimoburo, Tegano, Nakatsugawa City, Gifu Prefecture (56) References JP 62-173595 (JP) , A) JP-A-53-88806 (JP, A) Jitsuko 28-12352 (JP, Y1)

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】回転軸を軸受を介して回転可能に挿通した
ホルダの外周に装着されたステータと、上記回転軸に固
着され、上記ステータの外周側を覆うボス部を有する羽
根と、上記ボス部の上記ステータとの対向面に上記羽根
と共回りするように設けられ、ステータに対向するロー
タマグネットを有するロータヨークとを備え、上記羽根
の上記ボス部に上記ロータヨークの軸方向の端部が当る
台座を構成するとともに、ロータヨークの外周部に内側
端が当る複数のボスリブを設け、上記台座とボスリブと
により、上記羽根のボス部と上記ロータヨークとの間に
一連の通気路を形成したことを特徴とする送風機。
1. A stator mounted on the outer periphery of a holder having a rotary shaft rotatably inserted through a bearing, a blade fixed to the rotary shaft and having a boss portion covering the outer peripheral side of the stator, and the boss. A rotor yoke provided on the surface of the blade facing the stator so as to rotate with the blade and having a rotor magnet facing the stator, and the axial end of the rotor yoke contacts the boss portion of the blade. A plurality of boss ribs having inner ends are provided on the outer peripheral portion of the rotor yoke while forming a pedestal, and a series of ventilation paths are formed between the boss portion of the blade and the rotor yoke by the pedestal and the boss ribs. And a blower.
【請求項2】羽根のボス部の内側に台座とともにかく拌
リブを設けたことを特徴とする請求項1記載の送風機。
2. The blower according to claim 1, wherein a stirring rib is provided inside the boss portion of the blade together with the pedestal.
【請求項3】ボスリブと台座とかく拌リブの三者の少な
くとも二者を回転中心に対して放射状に設けたことを特
徴とする請求項2記載の送風機。
3. The blower according to claim 2, wherein at least two of the boss rib, the pedestal and the stirring rib are provided radially with respect to the center of rotation.
【請求項4】ボスリブと台座とかく拌リブの三者の少な
くとも隣接する二者を回転方向に所定角度のひねりを付
けた直線又は曲線で形成したことを特徴とする請求項2
記載の送風機。
4. The boss rib, the pedestal, and the stirring rib, at least two of which are adjacent to each other, are formed by a straight line or a curved line having a twist at a predetermined angle in the rotational direction.
Blower described.
JP63237778A 1988-09-22 1988-09-22 Blower Expired - Lifetime JPH07111199B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63237778A JPH07111199B2 (en) 1988-09-22 1988-09-22 Blower

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63237778A JPH07111199B2 (en) 1988-09-22 1988-09-22 Blower

Publications (2)

Publication Number Publication Date
JPH0286997A JPH0286997A (en) 1990-03-27
JPH07111199B2 true JPH07111199B2 (en) 1995-11-29

Family

ID=17020291

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63237778A Expired - Lifetime JPH07111199B2 (en) 1988-09-22 1988-09-22 Blower

Country Status (1)

Country Link
JP (1) JPH07111199B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2748763B2 (en) * 1992-02-20 1998-05-13 三菱電機株式会社 Blower
JP4291846B2 (en) 2006-11-24 2009-07-08 アスモ株式会社 Fan motor
JPWO2016117374A1 (en) * 2015-01-19 2017-06-22 株式会社デンソー Blower

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5388806U (en) * 1976-12-22 1978-07-21
JPS62173595U (en) * 1986-04-24 1987-11-04

Also Published As

Publication number Publication date
JPH0286997A (en) 1990-03-27

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