JPH0577598U - Motor fan - Google Patents
Motor fanInfo
- Publication number
- JPH0577598U JPH0577598U JP1778292U JP1778292U JPH0577598U JP H0577598 U JPH0577598 U JP H0577598U JP 1778292 U JP1778292 U JP 1778292U JP 1778292 U JP1778292 U JP 1778292U JP H0577598 U JPH0577598 U JP H0577598U
- Authority
- JP
- Japan
- Prior art keywords
- motor
- boss
- motor fan
- fan
- center
- 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.)
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Abstract
(57)【要約】
【目的】 本考案は、モータファンに関し、モータ各部
の大幅な温度低下に寄与することのできる電動ファン装
置のモータファンを提供することを目的とする。
【構成】 外周に複数のブレード２７が一体成形された
樹脂製のボス２５の中央にインサート２９を固着し、当
該インサート２９にモータ３１の回転軸３３が取り付く
電動ファン装置のモータファンに於て、上記ボス２５の
内面に、多数の線状の補強リブ３７を所定の高さを以っ
て放射状に設けると共に、当該各補強リブ３７のボス２
５の回転方向側側面３７ａに沿って、ボス２５の側面部
からボス２５の中心方向へ長孔４３を設けたものであ
る。
(57) [Summary] [Object] The present invention relates to a motor fan, and an object of the present invention is to provide a motor fan of an electric fan device that can contribute to a large temperature drop of each part of the motor. In a motor fan of an electric fan device in which an insert 29 is fixed to the center of a resin boss 25 integrally formed with a plurality of blades 27 on the outer periphery, and a rotary shaft 33 of a motor 31 is attached to the insert 29, A large number of linear reinforcing ribs 37 are radially provided on the inner surface of the boss 25 at a predetermined height, and the boss 2 of each reinforcing rib 37 is provided.
5, a long hole 43 is provided from the side surface portion of the boss 25 toward the center of the boss 25 along the side surface 37a on the rotation direction side.
Description
【０００１】[0001]
本考案は、車両用ラジエータ等に装着される電動ファン装置のモータファンに 関する。 The present invention relates to a motor fan of an electric fan device mounted on a vehicle radiator or the like.
【０００２】[0002]
一般に、車両用ラジエータには、熱交換効率を向上するために、ラジエータを 強制的に冷却する電動ファン装置が装着されている。 Generally, a vehicle radiator is equipped with an electric fan device that forcibly cools the radiator in order to improve heat exchange efficiency.
【０００３】 而して、従来、この種の電動ファン装置はモータでモータファンを回転駆動さ せているが、自己発熱で温度が上昇するモータの耐久性を確保するため、昨今で は、実開平２−２８５９８号公報に開示されるように、ボスの前面部から側面部 にかけて通気孔を形成してモータの冷却を図ったモータファンが知られている。Thus, conventionally, in this type of electric fan device, the motor fan is rotationally driven by a motor. However, in order to secure the durability of the motor in which the temperature rises due to self-heating, in recent years, As disclosed in Kaihei 2-28598, there is known a motor fan in which a ventilation hole is formed from a front surface portion to a side surface portion of a boss to cool a motor.
【０００４】 図６及び図７は上記公報に開示されたモータファンを示し、外周に複数のブレ ード１が一体成形された樹脂製のボス３の中央にインサート５が固着されて、当 該インサート５にモータ７の回転軸９がナット１１で取り付けられている。FIGS. 6 and 7 show the motor fan disclosed in the above publication, in which an insert 5 is fixed to the center of a resin boss 3 having a plurality of blades 1 integrally molded on the outer periphery. The rotating shaft 9 of the motor 7 is attached to the insert 5 with a nut 11.
【０００５】 そして、ボス３の内面には、多数の線状の補強リブ１３が放射状に形成される と共に、防水リブ１５と同心円状に環状の補強リブ１７が複数形成されており、 各補強リブ１３の間に、ボス３の周縁部から側面部にかけて、各周縁部と側面部 に於て長円を半分にした形状の通気孔１９が設けられている。A large number of linear reinforcing ribs 13 are radially formed on the inner surface of the boss 3, and a plurality of annular reinforcing ribs 17 are formed concentrically with the waterproof ribs 15. Ventilation holes 19 each having a shape of an ellipse halved at each of the peripheral edge portion and the side surface portion are provided between the peripheral edge portion and the side surface portion of the boss 3.
【０００６】 而して、上記モータファンを装着した電動ファン装置によれば、図７に示すよ うに、ボス３の前方の空気は流線Ｒ1 の如くブレード１に吸い込まれて後方へ流 れ、ボス３の前面部近傍は負圧となるので、ボス３の内側のモータ側面側間隙２ １に於ける空気が流線Ｒ2 の如く通気孔１９から外部に吸引され、更に、ボス３ の内側のモータ前面側間隙２３に於ける空気がモータファンの回転による粘性力 で回転するので、この回転する空気自体の遠心力で流線Ｒ3 の如くモータ前面側 間隙２３から通気孔１を介して流線Ｒ1 側へ流れ出て、自己発熱で温度上昇した モータ７を冷却しその耐久性を確保するようになっている。According to the electric fan device equipped with the motor fan, as shown in FIG. 7, the air in front of the boss 3 is sucked into the blade 1 along the streamline R 1 and flows backward. Since there is a negative pressure in the vicinity of the front surface of the boss 3, the air in the motor side gap 21 inside the boss 3 is sucked to the outside from the ventilation hole 19 like the streamline R 2 , and further, Since the air in the inner motor front side gap 23 is rotated by viscous force due to the rotation of the motor fan, the centrifugal force of the rotating air itself causes the air from the motor front side gap 23 through the vent hole 1 as shown by the streamline R 3. As a result, the motor 7 flowing out to the streamline R 1 side and having its temperature raised by self-heating is cooled to ensure its durability.
【０００７】[0007]
然し乍ら、上述の如き構造のモータファンを装着しても、モータ７内のブラシ 温度は２０４．５℃に達し、又、モータ７の負荷側軸受温度は１４６．５℃にも 達しているのが実情であり、昨今の厳しい耐熱条件下に於て、モータの高温連続 耐久性により寄与し得るモータファンの構造が要望されていた。 However, even if the motor fan having the above structure is installed, the brush temperature in the motor 7 reaches 204.5 ° C, and the load side bearing temperature of the motor 7 reaches 146.5 ° C. In reality, there has been a demand for a motor fan structure that can contribute to the high temperature continuous durability of the motor under the recent severe heat resistance conditions.
【０００８】 本考案は斯かる実情に鑑み案出されたもので、モータ各部の大幅な温度低下に 寄与することのできる電動ファン装置のモータファンを提供することを目的とす る。The present invention has been devised in view of the above circumstances, and an object thereof is to provide a motor fan of an electric fan device that can contribute to a large decrease in temperature of each part of the motor.
【０００９】[0009]
斯かる目的を達成するため、本考案は、外周に複数のブレードが一体成形され た樹脂製のボスの中央にインサートを固着し、当該インサートにモータの回転軸 が取り付く電動ファン装置のモータファンに於て、上記ボスの内面に、多数の線 状の補強リブを所定の高さを以って放射状に設けると共に、各補強リブのボスの 回転方向側側面に沿って、ボスの側面部からボスの中心方向へ長孔を設けたもの である。 In order to achieve such an object, the present invention is directed to a motor fan of an electric fan device in which an insert is fixed to the center of a resin boss in which a plurality of blades are integrally molded on the outer periphery, and the rotary shaft of the motor is attached to the insert. At the inner surface of the boss, a large number of linear reinforcing ribs are radially provided at a predetermined height, and the bosses are provided along the rotation-direction side surface of the boss from the side surface of the boss. It has a long hole in the center direction.
【００１０】[0010]
本考案に係るモータファンが回転駆動すると、ボスの前方の空気はブレードに 吸い込まれて後方へ流れるので、ボスの前面部近傍は負圧となって、ボスの内側 のモータ側面側間隙に於ける空気が長孔からボスの前方へ吸引される。 When the motor fan according to the present invention is rotationally driven, the air in front of the boss is sucked into the blade and flows rearward, so that a negative pressure is generated in the vicinity of the front surface of the boss, and in the gap on the motor side surface inside the boss. Air is sucked from the slot in front of the boss.
【００１１】 又、モータファンの回転に伴い、所定の高さに形成された補強リブによってモ ータの前面側間隙に遠心流が発生し、この遠心流は各補強リブの回転方向側側面 に沿って長孔からボスの前方へ吸引されるので、斯様にモータ周辺の空気が長孔 から外部に流れ出ることによって、自己発熱で温度上昇したモータが冷却される こととなる。Further, as the motor fan rotates, a centrifugal flow is generated in the clearance on the front side of the motor by the reinforcing ribs formed at a predetermined height, and the centrifugal flow is generated on the side surface of each reinforcing rib in the rotation direction. Since the air is sucked toward the front of the boss from the long hole, the air around the motor flows out from the long hole to the outside, so that the motor whose temperature has risen due to self-heating is cooled.
【００１２】[0012]
以下、本考案の実施例を図面に基づき詳細に説明する。 図１及び図２は本考案の第一実施例に係るモータファンを示し、図中、２５は 外周に４枚のブレード２７が一体成形された樹脂製のボスで、従来と同様、その 中央に固着されたインサート２９にモータ３１の回転軸３３がナット３５で取り 付けられている。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 and 2 show a motor fan according to a first embodiment of the present invention. In the drawings, 25 is a resin boss integrally formed with four blades 27 on the outer periphery, and in the same manner as in the conventional case, a boss is formed at the center. The rotating shaft 33 of the motor 31 is attached to the fixed insert 29 with a nut 35.
【００１３】 そして、ボス２５の内面には、多数の線状の補強リブ３７がボス２５の周縁部 から防水リブ３９に亘って放射状に形成されている。各補強リブ３７は、図６に 示す従来の補強リブ１３に比しモータ３１側へ高く形成されており、モータファ ンが矢印Ａ方向に回転したとき、図２に示すようにこれらの補強リブ３７が、ボ ス２５の内側のモータ３１の前面側間隙４１に従来より大きな遠心流Ｗ1 を発生 させるようになっている。A large number of linear reinforcing ribs 37 are radially formed on the inner surface of the boss 25 from the peripheral edge of the boss 25 to the waterproof rib 39. The reinforcing ribs 37 are formed higher toward the motor 31 than the conventional reinforcing ribs 13 shown in FIG. 6, and when the motor fan rotates in the direction of arrow A, the reinforcing ribs 37 are formed as shown in FIG. However, a large centrifugal flow W 1 is generated in the gap 41 on the front side of the motor 31 inside the boss 25 as compared with the conventional case.
【００１４】 又、ボス２５には、図１及び図２に示すようにその側面部からボス２５の中心 方向へ亘って長孔４３が、各補強リブ３７のボス２５の回転方向側側面３７ａに 沿って設けられており、上述の如くモータファンの回転に伴い補強リブ３７によ ってモータ３１の前面側間隙４１に発生した遠心流Ｗ1 が、図３に示すように各 補強リブ３７の回転方向側側面３７ａに沿って長孔４３から外部へ流れ出るよう になっている。Further, as shown in FIGS. 1 and 2, the boss 25 has a long hole 43 extending from the side surface thereof toward the center of the boss 25 on the side surface 37 a of the reinforcing rib 37 on the rotation direction side of the boss 25. The centrifugal flow W 1 generated along the front side gap 41 of the motor 31 by the reinforcing ribs 37 along with the rotation of the motor fan as described above is generated by the reinforcing ribs 37 as shown in FIG. It is designed to flow out from the elongated hole 43 along the side surface 37a on the rotational direction side.
【００１５】 本実施例に係るモータファンはこのように構成されているから、斯かるモータ ファンをモータ３１で回転駆動させると、図２に示すようにボス２５の前方の空 気は流線Ｗ2 の如くブレード２７に吸い込まれて後方へ流れるので、ボス２５の 前面部近傍は負圧となってボス２５の内側のモータ側面側間隙４５に於ける空気 が流線Ｗ3 の如く長孔４３からボス２５の前方へ吸引され、更に、モータ３１の 前面側間隙４１に発生した大きな遠心流Ｗ1 が、各補強リブ３７の回転方向側側 面３７ａに沿って各長孔４３から流線Ｗ1 側へ流れ出て、自己発熱で温度上昇し たモータ３１を冷却することとなる。Since the motor fan according to the present embodiment is configured in this way, when such a motor fan is rotationally driven by the motor 31, the air in front of the boss 25 is streamlined W as shown in FIG. 2, the air is sucked into the blade 27 and flows backward, so that a negative pressure is generated in the vicinity of the front surface of the boss 25, and the air in the motor side gap 45 inside the boss 25 has a long hole 43 like a streamline W 3. The large centrifugal flow W 1 that is sucked from the front of the boss 25 to the front side gap 41 of the motor 31 and flows from each elongated hole 43 along the rotation direction side surface 37 a of each reinforcing rib 37 to the streamline W 1. The motor 31 flowing out to the 1 side and having a temperature rise due to self-heating is cooled.
【００１６】 そして、本実施例に係るモータファンと図６に示す従来のモータファンを装着 した場合に於けるモータ温度を実測値により比較すると、下記の表１となる。 このように、本実施例に係るモータファンを装着した電動ファン装置によれば 、図６に示すモータファンを装着した電動ファン装置に比し、モータ３１のブラ シ温度が１４．８℃低下し、又、負荷側軸受温度の温度も２２．９℃低下するこ とが明らかとなった。Then, when the motor temperature in the case where the motor fan according to the present embodiment and the conventional motor fan shown in FIG. 6 are mounted is compared by the measured value, the following table 1 is obtained. As described above, according to the electric fan device having the motor fan according to the present embodiment, the brush temperature of the motor 31 is 14.8 ° C. lower than that of the electric fan device having the motor fan shown in FIG. Also, it was revealed that the temperature of the load side bearing temperature also dropped by 22.9 ° C.
【００１７】 従って、本実施例に係るモータファンを装着することにより、従来に比しモー タ３１の冷却効果が向上してモータ３１内部の温度上昇を抑えることができるの で、モータ３１の耐久性が飛躍的に向上することとなった。Therefore, by mounting the motor fan according to the present embodiment, the cooling effect of the motor 31 can be improved and the temperature rise inside the motor 31 can be suppressed as compared with the conventional one, so that the durability of the motor 31 can be improved. The sexuality has improved dramatically.
【００１８】 図４は本考案の第二実施例を示し、本実施例は、上記第一実施例の構造に加え て、従来と同様な環状の補強リブ４７，４９を防水リブ３９と同心円状に設けて ボス２５の補強を図ったもので、各補強リブ４７，４９は、モータファンが矢印 Ａ方向に回転したとき、各補強リブ３７による遠心流Ｗ1 の発生に支障を来す虞 のない高さに設けられている。尚、その他の構成は上記第一実施例と同様の構成 とされているため、ここではそれらについての説明は省略し、同一のものには同 一符号を以って表示する。FIG. 4 shows a second embodiment of the present invention. In this embodiment, in addition to the structure of the first embodiment, annular reinforcing ribs 47 and 49 similar to the conventional one are concentric with the waterproof rib 39. The reinforcing ribs 47, 49 are provided on the base plate to prevent the centrifugal flow W 1 from being generated by the reinforcing ribs 37 when the motor fan rotates in the direction of arrow A. It is provided at no height. Since the other structures are the same as those of the first embodiment, the description thereof is omitted here, and the same parts are indicated by the same reference numerals.
【００１９】 而して、本実施例に係るモータファンと図６の従来のモータファンを装着した 場合に於けるモータ温度を実測値で比較したものが下記の表２であり、又、図５ の如く長孔４３を各補強リブ３７の中央にボス２５の側面部から中心に向かって 形成したモータファン５１に比しても、表２の如く、 となり、第二実施例に係るモータファンを装着した電動ファン装置によれば、 図６に示すモータファンを装着した電動ファン装置に比し、モータ３１のブラシ 温度が１１．５℃低下し、負荷側軸受温度も１８．０℃低下することが明らかと なった。Table 2 below shows a comparison of measured motor temperatures of the motor fan according to the present embodiment and the conventional motor fan of FIG. 6 when mounted. Even when compared with the motor fan 51 in which the long hole 43 is formed in the center of each reinforcing rib 37 from the side surface of the boss 25 toward the center as shown in Table 2, as shown in Table 2, Therefore, according to the electric fan device equipped with the motor fan according to the second embodiment, the brush temperature of the motor 31 is reduced by 11.5 ° C. and the load is reduced as compared with the electric fan device equipped with the motor fan shown in FIG. It was revealed that the side bearing temperature also dropped by 18.0 ° C.
【００２０】 又、図５の如く長孔４３を各補強リブ３７の中央部分に形成したモータファン ５１に比しても、長孔４３を補強リブ３７の回転方向側側面３７ａに沿って設け ることにより、モータ３１の冷却効果が向上することが明らかとなった。Further, as compared with the motor fan 51 in which the elongated hole 43 is formed in the central portion of each reinforcing rib 37 as shown in FIG. 5, the elongated hole 43 is provided along the rotation direction side surface 37 a of the reinforcing rib 37. As a result, it became clear that the cooling effect of the motor 31 is improved.
【００２１】 従って、上記第二実施例に係るモータファンによっても、従来に比しモータ３ １の温度上昇を抑えることができ、モータ３１の耐久性を飛躍的に向上させるこ とができることとなった。Therefore, even with the motor fan according to the second embodiment, the temperature rise of the motor 31 can be suppressed and the durability of the motor 31 can be dramatically improved as compared with the conventional case. It was
【００２２】[0022]
以上述べたように、本考案に係るモータファンによれば、従来に比しモータの 冷却効果を向上させることができるので、モータ内部の温度上昇を抑え、因って 、モータの磁力低下が小さくなり耐久性が飛躍的に向上することとなった。 As described above, according to the motor fan of the present invention, the cooling effect of the motor can be improved as compared with the conventional one, so that the temperature rise inside the motor can be suppressed, and hence the decrease in the magnetic force of the motor can be reduced. The durability is dramatically improved.
【図１】本考案の第一実施例に係るモータファンの正面
図である。FIG. 1 is a front view of a motor fan according to a first embodiment of the present invention.
【図２】図１のII−II線断面図である。FIG. 2 is a sectional view taken along line II-II in FIG.
【図３】図１のIII − III線端面図である。3 is an end view taken along line III-III in FIG.
【図４】本考案の第二実施例に係るモータファンの正面
図である。FIG. 4 is a front view of a motor fan according to a second embodiment of the present invention.
【図５】長孔を補強リブの中間に設けたモータファンの
正面図である。FIG. 5 is a front view of a motor fan in which a long hole is provided in the middle of a reinforcing rib.
【図６】従来のモータファンの正面図である。FIG. 6 is a front view of a conventional motor fan.
【図７】図６のVII − VII線断面図である。7 is a sectional view taken along line VII-VII of FIG.
２５ ボス ２７ ブレード ３１ モータ ３７ 補強リブ ３７ａ 補強リブの回転方向側側面 ４３ 長孔 25 Boss 27 Blade 31 Motor 37 Reinforcing Rib 37a Side of Reinforcing Rib in Direction of Rotation 43 Long Hole
Claims (1)
形された樹脂製のボス（２５）の中央にインサート（２
９）を固着し、当該インサート（２９）にモータ（３
１）の回転軸（３３）が取り付く電動ファン装置のモー
タファンに於て、上記ボス（２５）の内面に、多数の線
状の補強リブ（３７）を所定の高さを以って放射状に設
けると共に、各補強リブ（３７）のボス（２５）の回転
方向側側面（３７ａ）に沿って、ボス（２５）の側面部
からボス（２５）の中心方向へ長孔（４３）を設けたこ
とを特徴とするモータファン。1. A insert (2) is provided at the center of a resin boss (25) integrally formed with a plurality of blades (27) on the outer periphery.
9) is fixed, and the motor (3
In the motor fan of the electric fan device to which the rotary shaft (33) of 1) is attached, a large number of linear reinforcing ribs (37) are radially formed on the inner surface of the boss (25) with a predetermined height. Along with the provision, a long hole (43) is provided from the side surface portion of the boss (25) toward the center of the boss (25) along the rotational side surface (37a) of the boss (25) of each reinforcing rib (37). A motor fan characterized in that.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992017782U JP2575648Y2 (en) | 1992-03-30 | 1992-03-30 | Motor fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992017782U JP2575648Y2 (en) | 1992-03-30 | 1992-03-30 | Motor fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0577598U true JPH0577598U (en) | 1993-10-22 |
| JP2575648Y2 JP2575648Y2 (en) | 1998-07-02 |
Family
ID=11953295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1992017782U Expired - Lifetime JP2575648Y2 (en) | 1992-03-30 | 1992-03-30 | Motor fan |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2575648Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015017547A (en) * | 2013-07-11 | 2015-01-29 | ローヤル電機株式会社 | Hub and blower |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55106397U (en) * | 1979-01-19 | 1980-07-25 | ||
| JPH02188697A (en) * | 1989-01-13 | 1990-07-24 | Mitsubishi Electric Corp | Blower |
-
1992
- 1992-03-30 JP JP1992017782U patent/JP2575648Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55106397U (en) * | 1979-01-19 | 1980-07-25 | ||
| JPH02188697A (en) * | 1989-01-13 | 1990-07-24 | Mitsubishi Electric Corp | Blower |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015017547A (en) * | 2013-07-11 | 2015-01-29 | ローヤル電機株式会社 | Hub and blower |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2575648Y2 (en) | 1998-07-02 |
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