JP2000110780A - Impeller of fan - Google Patents
Impeller of fanInfo
- Publication number
- JP2000110780A JP2000110780A JP10286416A JP28641698A JP2000110780A JP 2000110780 A JP2000110780 A JP 2000110780A JP 10286416 A JP10286416 A JP 10286416A JP 28641698 A JP28641698 A JP 28641698A JP 2000110780 A JP2000110780 A JP 2000110780A
- Authority
- JP
- Japan
- Prior art keywords
- boss
- impeller
- boss member
- motor shaft
- vibration
- 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
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本願発明は、送風機の羽根車
に関し、さらに詳しくは羽根車のボス部の構造に関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an impeller of a blower, and more particularly to a structure of a boss of the impeller.
【０００２】[0002]
【従来の技術】羽根を備えたハブの軸心部に設けられた
ボスにモーター軸が軸着され、該モーター軸を介してモ
ーターにより回転駆動される構成をもつ送風機、例えば
遠心送風機とか斜流又は軸流送風機の羽根車において
は、上記ボス部分に防振部材を配置し、羽根車のハブを
モーター軸に対して防振支持する構造をとるのが従来一
般的である。2. Description of the Related Art A motor shaft is mounted on a boss provided at the shaft center of a hub provided with blades, and is driven to rotate by a motor via the motor shaft, such as a centrifugal blower or a mixed flow. Or, in an impeller of an axial blower, a structure in which an anti-vibration member is arranged at the boss portion and an anti-vibration support is provided for a hub of the impeller with respect to a motor shaft is conventionally used.
【０００３】[0003]
【発明が解決しようとする課題】かかる防振支持構造の
従来の具体例としては、例えば図５及び図６に示す如き
ものが知られている。FIGS. 5 and 6 show a conventional example of such a vibration-proof support structure.
【０００４】図５に示すものは、羽根車側のハブ２７の
軸心部にボス２１を設け、該ボス２１を介して上記ハブ
２７をモーター２８のモーター軸２９に軸着させたもの
である。そして、このボス２１に防振部材２３を備えて
防振作用をなさしめるようになっている。FIG. 5 shows a configuration in which a boss 21 is provided at the axis of a hub 27 on the impeller side, and the hub 27 is mounted on a motor shaft 29 of a motor 28 via the boss 21. . The boss 21 is provided with an anti-vibration member 23 so as to perform an anti-vibration function.
【０００５】ところが、この従来構造のものにおいて
は、上記防振部材２３を、防振用素材として従来一般的
に使用されている熱硬化性ゴム材で構成していることか
ら、図５に示すように、上記ボス２１は、金属材で構成
され且つその軸穴に上記モーター軸２９が嵌挿される内
側ボス部材２２の外側に上記防振部材２３を配置すると
ともに、該防振部材２３の外側には金属材出構成される
中間ボス部材２４を介在させ、さらに該中間ボス部材２
４の外側に樹脂材で構成され且つ上記ハブ２７に組付け
られる外側ボス部材２５を配置した四重積層構造となら
ざるを得ない。これは、上記防振部材２３を構成する熱
硬化性ゴム材が、その成形時における融点が高く、樹脂
材との２色成形ができず、融点の高い金属材との接着構
造をとらざるを得ないこと、即ち、防振部材２３を一対
のボス部材の間に一体的に介在配置しようとすれば、該
防振部材２３の両側に必ず金属製のボス部材、即ち、上
記内側ボス部材２２と中間ボス部材２４とを設けなけれ
ばならないことに起因するものである。この結果、ボス
２１の径寸法が増大しこれが大型化するとともに、部品
点数の増加によりコストアップになるという問題があ
る。さらに、熱硬化性ゴム材の性状に基づく成形時の問
題として、上記防振部材２３の成形に時間がかかると
か、該防振部材２３の上記内側ボス部材２２及び中間ボ
ス部材２４への加硫接着工程が煩雑でありコストアップ
を招来する、等の問題もあった。However, in this conventional structure, since the vibration isolating member 23 is made of a thermosetting rubber material generally used as a vibration isolating material, it is shown in FIG. As described above, the boss 21 is made of a metal material, and the anti-vibration member 23 is arranged outside the inner boss member 22 in which the motor shaft 29 is inserted into the shaft hole. Is provided with an intermediate boss member 24 formed of a metal material.
4 has a four-layered structure in which an outer boss member 25 made of a resin material and assembled to the hub 27 is arranged. This is because the thermosetting rubber material constituting the vibration damping member 23 has a high melting point at the time of molding, cannot perform two-color molding with a resin material, and has to take an adhesive structure with a metal material having a high melting point. If this is not possible, that is, if the vibration isolating member 23 is to be integrally disposed between the pair of boss members, a metal boss member, that is, the inner boss member 22 must be provided on both sides of the vibration isolating member 23. And the intermediate boss member 24 must be provided. As a result, there is a problem that the diameter of the boss 21 increases and the size thereof increases, and the cost increases due to an increase in the number of parts. Further, as a problem at the time of molding based on the properties of the thermosetting rubber material, it takes time to form the vibration isolating member 23 or vulcanization of the vibration isolating member 23 to the inner boss member 22 and the intermediate boss member 24. There were also problems such as that the bonding process was complicated and cost was increased.
【０００６】一方、このように防振部材２３を熱硬化性
ゴム材で構成し且つその内外両側にそれぞれ金属製のボ
ス部材を配置することによる不都合を軽減するものとし
て、図６に示すように圧入構造のボス３１が提案されて
いる。この図６に示すボス３１は、モーター３６のモー
ター軸３７に軸着される内側ボス部材３２を金属製と
し、この内側ボス部材３２の外側に熱硬化性ゴム材でな
る防振部材３３を接着固定してこれら両者を一体化する
一方、該防振部材２３を樹脂製の外側ボス部材３４に圧
入固定することで、図５における上記中間ボス部材２４
の如き金属製部材の配置を省略できるようにしたもので
ある。かかる構成とすれば、図５における上記中間ボス
部材２４の如き部材の配置が不要となるという利点が得
られる反面、上記防振部材３３の圧入時にその圧入部分
の変形による位置ずれが生じ、品質の低下につながると
いう問題があった。On the other hand, as shown in FIG. 6, the vibration isolating member 23 is made of a thermosetting rubber material, and the inconvenience caused by disposing the metal boss members on both the inner and outer sides is reduced as shown in FIG. A boss 31 having a press-fitting structure has been proposed. In the boss 31 shown in FIG. 6, an inner boss member 32 attached to a motor shaft 37 of a motor 36 is made of metal, and a vibration damping member 33 made of a thermosetting rubber material is bonded to the outside of the inner boss member 32. By fixing the vibration isolating member 23 to the outer boss member 34 made of resin while fixing the two, the intermediate boss member 24 shown in FIG.
The arrangement of the metal member as described above can be omitted. With such a configuration, the advantage that the arrangement of the member such as the intermediate boss member 24 in FIG. 5 is not required is obtained. There is a problem that leads to a decrease in
【０００７】さらに、上記図５及び図６に示すボス構造
の如く防振部材２３，３３を熱硬化性ゴム材で構成した
ことによる問題点を解決する一つの手段として、防振部
材を熱可塑性弾性材で構成する技術も提案されている。
ところが、この熱可塑性弾性材には、高温になると軟化
して変形し易くなるという素材特有の性状があるため、
モーターにおける発熱がそのモーター軸を介してボス部
分に伝達されることで該ボス部分の信頼性が損なわれる
という問題がある。Further, as one means for solving the problems caused by forming the vibration isolating members 23 and 33 from a thermosetting rubber material as in the boss structure shown in FIGS. 5 and 6, the vibration isolating members are made of a thermoplastic material. A technique using an elastic material has also been proposed.
However, since this thermoplastic elastic material has the unique property of being softened and easily deformed at high temperatures,
There is a problem in that the heat generated in the motor is transmitted to the boss via the motor shaft, thereby reducing the reliability of the boss.
【０００８】そこで本願発明は、低コストで且つ信頼性
の高いボス構造をもつ送風機の羽根車を提案することを
目的としてなされたものである。SUMMARY OF THE INVENTION The present invention has been made for the purpose of proposing an impeller of a blower having a low-cost and highly reliable boss structure.
【０００９】[0009]
【課題を解決するための手段】本願発明ではかかる課題
を解決するための具体的手段として次のような構成を採
用している。Means for Solving the Problems In the present invention, the following configuration is adopted as specific means for solving such problems.
【００１０】本願の第１の発明では、羽根を備えたハブ
５の軸心部に設けられたボス１にモーター軸７が軸着さ
れ、該モーター軸７を介してモーター６により回転駆動
される送風機の羽根車において、上記ボス１を、上記モ
ーター軸７が嵌挿される内側ボス部材２と、上記ハブ５
に連結される外側ボス部材４と、上記内側ボス部材２と
外側ボス部材４との間に介在せしめられる防振部材３と
で構成するとともに、上記防振部材３を熱可塑性弾性材
で構成したことを特徴としている。In the first aspect of the present invention, a motor shaft 7 is mounted on a boss 1 provided at a shaft portion of a hub 5 having blades, and is rotated by a motor 6 via the motor shaft 7. In the impeller of the blower, the boss 1 is connected to the inner boss member 2 into which the motor shaft 7 is inserted, and the hub 5
And an anti-vibration member 3 interposed between the inner boss member 2 and the outer boss member 4, and the anti-vibration member 3 is made of a thermoplastic elastic material. It is characterized by:
【００１１】本願の第２の発明にかかる送風機の羽根車
では、上記第１の発明にかかる送風機の羽根車におい
て、上記内側ボス部材２を樹脂材で構成したことを特徴
としている。The impeller of the blower according to the second invention of the present application is characterized in that, in the impeller of the blower according to the first invention, the inner boss member 2 is made of a resin material.
【００１２】本願の第３の発明にかかる送風機の羽根車
では、上記第２の発明にかかる送風機の羽根車におい
て、上記内側ボス部材２に、上記モーター軸７側から上
記防振部材３側への熱伝達を抑制する熱伝達抑制手段１
０を設けたことを特徴としている。In the impeller of the blower according to the third invention of the present application, in the impeller of the blower according to the second invention, the inner boss member 2 is moved from the motor shaft 7 side to the vibration isolating member 3 side. Transfer suppressing means 1 for suppressing heat transfer of the heat
0 is provided.
【００１３】本願の第４の発明にかかる送風機の羽根車
では、上記第３の発明にかかる送風機の羽根車におい
て、上記熱伝達抑制手段１０を、上記内側ボス部材２の
周壁部分に該内側ボス部材２の軸方向と略平行に延びる
ように形成された貫通孔１１又は深孔１２で構成したこ
とを特徴としている。In the impeller of a blower according to a fourth aspect of the present invention, in the impeller of the blower according to the third aspect of the present invention, the heat transfer suppressing means is provided on the peripheral wall of the inner boss member. It is characterized by being constituted by a through hole 11 or a deep hole 12 formed to extend substantially parallel to the axial direction of the member 2.
【００１４】[0014]
【発明の効果】本願発明ではかかる構成とすることによ
り次のような効果が得られる。According to the present invention, the following effects can be obtained by adopting such a configuration.
【００１５】 本願の第１の発明にかかる送風機の羽
根車では、羽根を備えたハブ５の軸心部に設けられたボ
ス１にモーター軸７が軸着され、該モーター軸７を介し
てモーター６により回転駆動される送風機の羽根車にお
いて、上記ボス１を、上記モーター軸７が嵌挿される内
側ボス部材２と、上記ハブ５に連結される外側ボス部材
４と、上記内側ボス部材２と外側ボス部材４との間に介
在せしめられる防振部材３とで構成するとともに、上記
防振部材３を熱可塑性弾性材で構成している。In the impeller of the blower according to the first invention of the present application, a motor shaft 7 is axially mounted on a boss 1 provided at a shaft center portion of a hub 5 having blades, and the motor is connected via the motor shaft 7. In the impeller of the blower rotated by 6, the boss 1 is connected to the inner boss member 2 into which the motor shaft 7 is inserted, the outer boss member 4 connected to the hub 5, and the inner boss member 2. The vibration isolating member 3 is interposed between the outer boss member 4 and the vibration isolating member 3, and the vibration isolating member 3 is composed of a thermoplastic elastic material.
【００１６】かかる構成によれば、上記防振部材３の成
形素材である熱可塑性弾性材が、樹脂材との二色成形が
可能で、その成形時間が短い、等の性状をもつことか
ら、上述した図５に示す従来構造の如き上記中間ボス部
材２４の付設が不要であり、それだけボス１部分の径寸
法の縮小によるコンパクト化、及び部品点数の低減によ
る低コスト化が可能となるものである。また、上述した
図６に示す従来構造の如き圧入固定が回避されること
で、上記ボス１部分の品質が良好に維持されるという効
果もある。According to such a configuration, the thermoplastic elastic material, which is a molding material of the vibration isolating member 3, can be two-color molded with a resin material, and has a property that the molding time is short, and the like. It is not necessary to attach the intermediate boss member 24 as in the conventional structure shown in FIG. 5 described above, so that the boss 1 can be made compact by reducing the diameter and the cost can be reduced by reducing the number of parts. is there. In addition, since the press-fitting and fixing as in the conventional structure shown in FIG. 6 described above is avoided, there is also an effect that the quality of the boss 1 portion is favorably maintained.
【００１７】 本願の第２の発明にかかる送風機の羽
根車によれば、上記に記載の効果に加えて次のような
効果が奏せられる。即ち、この発明では、上記内側ボス
部材２を樹脂材で構成しているので、例えば上記内側ボ
ス部材２を金属材で構成する場合に比して、該内側ボス
部材２における伝熱率が低く維持され、その結果、上記
モーター３での発熱の上記防振部材３への伝達が可及的
に抑制され、該防振部材３が熱可塑性弾性材で構成され
ているにも拘わらず、その変形が生じにくく、上記ボス
１部分の信頼性、延いては羽根車の信頼性が高められる
ことになる。According to the impeller of the blower according to the second invention of the present application, the following effects can be obtained in addition to the effects described above. That is, in the present invention, since the inner boss member 2 is made of a resin material, the heat transfer coefficient of the inner boss member 2 is lower than that of a case where the inner boss member 2 is made of a metal material. As a result, transmission of heat generated by the motor 3 to the vibration isolating member 3 is suppressed as much as possible, and despite that the vibration isolating member 3 is made of a thermoplastic elastic material, Deformation is less likely to occur, and the reliability of the boss 1 and the reliability of the impeller are improved.
【００１８】 本願の第３の発明にかかる送風機の羽
根車によれば、上記内側ボス部材２に、上記モーター軸
７側から上記防振部材３側への熱伝達を抑制する熱伝達
抑制手段１０を設けているので、上記内側ボス部材２を
樹脂材で構成したことによる伝熱率の低下との相乗的作
用により、上記防振部材３への熱伝達がさらに抑制さ
れ、上記に記載の効果がより一層確実ならしめられる
ことになる。According to the impeller of the blower according to the third invention of the present application, the heat transfer suppressing means 10 for suppressing the heat transfer from the motor shaft 7 side to the vibration isolating member 3 to the inner boss member 2. The heat transfer to the vibration damping member 3 is further suppressed by a synergistic effect with a decrease in heat transfer rate due to the inner boss member 2 being made of a resin material, and the effect described above. Will be further ensured.
【００１９】 本願の第４の発明にかかる送風機の羽
根車によれば、上記熱伝達抑制手段１０を、上記内側ボ
ス部材２の周壁部分に該内側ボス部材２の軸方向と略平
行に延びるように形成された貫通孔１１又は深孔１２で
構成し、該貫通孔１１又は深孔１２の空間部を断熱空間
として利用するようにしているので、上記に記載の効
果をより安価な構成で実現できるものである。According to the impeller of the blower according to the fourth invention of the present application, the heat transfer suppressing means 10 extends on the peripheral wall portion of the inner boss member 2 substantially in parallel with the axial direction of the inner boss member 2. The above-mentioned effect is realized with a more inexpensive configuration because the through-hole 11 or the deep hole 12 is formed and the space of the through-hole 11 or the deep hole 12 is used as a heat insulating space. You can do it.
【００２０】[0020]
【発明の実施の形態】以下、本願発明にかかる送風機の
羽根車を好適な実施形態に基づいて具体的に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an impeller of a blower according to the present invention will be specifically described based on a preferred embodiment.
【００２１】図１〜図４には、本願発明の実施形態にか
かる遠心送風機における羽根車のボス１部分を示してい
る。このボス１は、羽根車のハブ５の軸心部にボルト締
着されて該ハブ５と一体化されるとともに、モーター６
のモーター軸７が嵌挿され且つ軸着されるものであっ
て、次述する内側ボス部材２と防振部材３と外側ボス部
材４とを備えて構成される。1 to 4 show a boss 1 of an impeller in a centrifugal blower according to an embodiment of the present invention. The boss 1 is bolted to the shaft center of the hub 5 of the impeller to be integrated with the hub 5 and the motor 6
The motor shaft 7 is fitted and axially mounted, and includes an inner boss member 2, an anti-vibration member 3, and an outer boss member 4 described below.
【００２２】上記内側ボス部材２は、適宜の樹脂材によ
り成形された筒状部材であって、その軸心部分には上記
モーター軸３７が嵌挿される軸穴２ａが貫設されてい
る。また、この内側ボス部材２の周壁２ｂには、該内側
ボス部材２の両端面２ｃ，２ｄ間に跨がって貫設された
複数の貫通孔１１，１１，・・と、一方の端面２ｄ側か
ら所定深さまで穿孔された複数の深孔１２，１２，・・
とが、上記周壁２ｂの周方向に所定間隔で且つ交互に形
成されている。尚、これら貫通孔１１，１１，・・及び
深孔１２，１２，・・は、特許請求の範囲中の「熱伝達
抑制手段１０」を構成する。The inner boss member 2 is a cylindrical member formed of an appropriate resin material, and has a shaft hole 2a through which the motor shaft 37 is inserted. A plurality of through-holes 11, 11,... Extending across both end faces 2c, 2d of the inner boss member 2 are formed in the peripheral wall 2b of the inner boss member 2, and one end face 2d. A plurality of deep holes 12, 12, ... drilled from the side to a predetermined depth
Are alternately formed at predetermined intervals in the circumferential direction of the peripheral wall 2b. The through holes 11, 11,... And the deep holes 12, 12,... Constitute "heat transfer suppressing means 10" in the claims.
【００２３】上記外側ボス部材４は、上記内側ボス部材
２の外形寸法より所定寸法だけ大径の内径寸法をもつ周
壁４ａと該周壁４ａの一端に連続して径方向外側へ延出
する鍔部４ｂとを備えて構成されるものであって、適宜
の樹脂材により一体成形されている。尚、上記鍔部４ｂ
は、上記ハブ５に対する締着固定面となる。The outer boss member 4 has a peripheral wall 4a having an inner diameter larger than the outer dimension of the inner boss member 2 by a predetermined dimension, and a flange portion extending radially outward continuously from one end of the peripheral wall 4a. 4b, and is integrally formed of an appropriate resin material. The flange 4b
Is a fastening fixing surface for the hub 5.
【００２４】上記防振部材３は、上記内側ボス部材２の
外側に上記外側ボス部材４を同心状に配置した状態にお
いて、これら両者間の空間部に熱可塑性弾性材を充填硬
化させて形成された筒状形態をもつ部材であって、その
内外両周面には、上記内側ボス部材２と上記外側ボス部
材４とが固着され、これら両者２，４とともに上記ボス
１を構成している。When the outer boss member 4 is concentrically arranged outside the inner boss member 2, the vibration isolating member 3 is formed by filling and curing a thermoplastic elastic material in a space between the two members. The inner boss member 2 and the outer boss member 4 are fixed to the inner and outer peripheral surfaces of the inner boss member, and the boss 1 is formed together with the inner boss member 2 and the outer boss member 4.
【００２５】このように構成された上記ボス１は、上記
外側ボス部材４の鍔部ｂを上記ハブ５に位置決め状態で
衝合させ、且つこれを固定ボルト１３，１３，・・によ
り締着することで該ハブ５と一体化され、羽根車を構成
する。そして、このようなボス１を備えた羽根車は、該
ボス１の上記軸穴２ａに嵌挿固定されたモーター軸３７
により回転駆動され、所要の送風作用をなすものであ
る。In the boss 1 thus configured, the flange b of the outer boss member 4 is abutted against the hub 5 in a positioning state, and the boss 1 is fastened by fixing bolts 13, 13,. Thereby, it is integrated with the hub 5 to form an impeller. The impeller provided with such a boss 1 is a motor shaft 37 fitted and fixed in the shaft hole 2a of the boss 1.
, And performs a required blowing action.
【００２６】ところで、この羽根車においては、上記ボ
ス１を上述の如く構成することで、次のような特有の利
点が得られるものである。By the way, in this impeller, the following specific advantages can be obtained by configuring the boss 1 as described above.
【００２７】即ち、この実施形態のように、上記内側ボ
ス部材２と上記外側ボス部材４、及びこれら両者間に介
在配置された上記防振部材３とで上記ボス１を構成する
とともに、該防振部材３を熱可塑性弾性材で構成した場
合には、該熱可塑性弾性材が、樹脂材との二色成形が可
能で、且つその成形時間が短い、等の性状をもつことか
ら、例えば図５に示す従来構造の如き中間ボス部材２４
の付設が不要であり、それだけボス１部分の径寸法の縮
小によるコンパクト化、及び部品点数の低減と製造工程
の簡略化による低コスト化が可能となるものである。That is, as in this embodiment, the inner boss member 2, the outer boss member 4, and the vibration isolator 3 interposed between the two constitute the boss 1 and When the vibration member 3 is made of a thermoplastic elastic material, the thermoplastic elastic material has properties such as two-color molding with a resin material and a short molding time. Intermediate boss member 24 as in the conventional structure shown in FIG.
It is not necessary to attach the boss, so that the size can be reduced by reducing the diameter of the boss 1 and the cost can be reduced by reducing the number of parts and simplifying the manufacturing process.
【００２８】さらに、この実施形態のように、上記内側
ボス部材２を樹脂材で構成すると、例えば上記内側ボス
部材２を金属材で構成する場合に比して、該内側ボス部
材２における伝熱率が低く維持される。このため、上記
モーター６で発生した熱が上記モーター軸３７及び上記
内側ボス部材２を介して上記防振部材３に伝達されるの
が可及的に抑制されることから、該防振部材３が熱可塑
性弾性材で構成されているにも拘わらず、その変形が生
じにくく、この結果、上記ボス１部分の信頼性、延いて
は上記羽根車の信頼性がより一層高められることにな
る。そして、このような上記防振部材３の変形の抑制効
果は、上記内側ボス部材２の周壁２ｂに上記貫通孔１
１，１１，・・と深孔１２，１２，・・とを設けてこれ
らの空間部を断熱空間として利用する構成とすることで
より一層確実ならしめられる。Further, when the inner boss member 2 is made of a resin material as in this embodiment, the heat transfer in the inner boss member 2 is made easier than when, for example, the inner boss member 2 is made of a metal material. The rate is kept low. For this reason, the transmission of the heat generated by the motor 6 to the vibration isolating member 3 via the motor shaft 37 and the inner boss member 2 is suppressed as much as possible. Despite being made of a thermoplastic elastic material, the deformation is less likely to occur, and as a result, the reliability of the boss 1 and the reliability of the impeller are further enhanced. The effect of suppressing the deformation of the vibration isolating member 3 is obtained by forming the through holes 1
, And deep holes 12, 12,... And these spaces are used as heat-insulated spaces, whereby the structure can be further assured.
【図１】本願発明にかかる送風機の羽根車におけるボス
部の正面図である。FIG. 1 is a front view of a boss portion of an impeller of a blower according to the present invention.
【図２】図１のＩＩ−ＩＩ断面図である。FIG. 2 is a sectional view taken along line II-II of FIG.
【図３】図１のＩＩＩ−ＩＩＩ断面図である。FIG. 3 is a sectional view taken along line III-III of FIG. 1;
【図４】図２のＩＶ−ＩＶ矢視図である。FIG. 4 is a view taken in the direction of arrows IV-IV in FIG. 2;
【図５】従来の送風機羽根車のボス部の構造を示す断面
図である。FIG. 5 is a sectional view showing a structure of a boss portion of a conventional fan impeller.
【図６】従来の送風機羽根車のボス部の構造を示す断面
図である。FIG. 6 is a sectional view showing a structure of a boss portion of a conventional fan impeller.
１はボス、２は内側ボス部材、３は防振部材、４は外側
ボス部材、５はハブ、６はモーター、７はモーター軸、
１０は熱伝達抑制手段、１１は貫通孔、１２は深孔、１
３は固定ボルトである。1 is a boss, 2 is an inner boss member, 3 is an anti-vibration member, 4 is an outer boss member, 5 is a hub, 6 is a motor, 7 is a motor shaft,
10 is a heat transfer suppressing means, 11 is a through hole, 12 is a deep hole, 1
3 is a fixing bolt.
Claims (4)
られたボス（１）にモーター軸（７）が軸着され、該モ
ーター軸（７）を介してモーター（６）により回転駆動
される送風機の羽根車であって、 上記ボス（１）が、上記モーター軸（７）が嵌挿される
内側ボス部材（２）と、上記ハブ（５）に連結される外
側ボス部材（４）と、上記内側ボス部材（２）と外側ボ
ス部材（４）との間に介在せしめられる防振部材（３）
とを備えるとともに、上記防振部材（３）が熱可塑性弾
性材で構成されていることを特徴とする送風機の羽根
車。1. A motor shaft (7) is mounted on a boss (1) provided at a shaft portion of a hub (5) having blades, and is driven by a motor (6) via the motor shaft (7). An impeller of a blower that is driven to rotate, wherein the boss (1) has an inner boss member (2) into which the motor shaft (7) is inserted and an outer boss member (2) connected to the hub (5). 4) and an anti-vibration member (3) interposed between the inner boss member (2) and the outer boss member (4).
And an anti-vibration member (3) made of a thermoplastic elastic material.
を特徴とする送風機の羽根車。2. The impeller according to claim 1, wherein the inner boss member (2) is made of a resin material.
ら上記防振部材（３）側への熱伝達を抑制する熱伝達抑
制手段（１０）が設けられていることを特徴とする送風
機の羽根車。3. The heat transfer suppressing means (10) according to claim 2, wherein said inner boss member (2) is provided with a heat transfer suppressing means (10) for suppressing heat transfer from said motor shaft (7) side to said vibration isolating member (3) side. An impeller for a blower, wherein the impeller is provided.
（２）の周壁部分に該内側ボス部材（２）の軸方向と略
平行に延びるように形成された貫通孔（１１）又は深孔
（１２）であることを特徴とする送風機の羽根車。4. The heat transfer suppressing means (10) according to claim 3, wherein the heat transfer suppressing means (10) is formed on a peripheral wall portion of the inner boss member (2) so as to extend substantially parallel to an axial direction of the inner boss member (2). The impeller of a blower characterized by being a through hole (11) or a deep hole (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10286416A JP2000110780A (en) | 1998-10-08 | 1998-10-08 | Impeller of fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10286416A JP2000110780A (en) | 1998-10-08 | 1998-10-08 | Impeller of fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000110780A true JP2000110780A (en) | 2000-04-18 |
Family
ID=17704119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10286416A Pending JP2000110780A (en) | 1998-10-08 | 1998-10-08 | Impeller of fan |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000110780A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003074492A (en) * | 2001-09-03 | 2003-03-12 | Mitsubishi Electric Corp | Vibration control structure of blower, boss part of fan and air conditioner |
| WO2008059738A1 (en) * | 2006-11-14 | 2008-05-22 | Daikin Industries, Ltd. | Boss structure of impeller of blower and impeller of blower having same |
| JP2011236917A (en) * | 2011-08-30 | 2011-11-24 | Nisshinbo Mechatronics Inc | Vibration-isolating tool for blower fan, and blower fan structure having the same |
| CN105257565A (en) * | 2015-10-16 | 2016-01-20 | 合肥通用机械研究院 | Low-vibration and low-noise centrifugal fan |
| JP6840297B1 (en) * | 2019-12-25 | 2021-03-10 | 三菱電機株式会社 | External fan fan and rotary electric machine |
-
1998
- 1998-10-08 JP JP10286416A patent/JP2000110780A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003074492A (en) * | 2001-09-03 | 2003-03-12 | Mitsubishi Electric Corp | Vibration control structure of blower, boss part of fan and air conditioner |
| WO2008059738A1 (en) * | 2006-11-14 | 2008-05-22 | Daikin Industries, Ltd. | Boss structure of impeller of blower and impeller of blower having same |
| JP2011236917A (en) * | 2011-08-30 | 2011-11-24 | Nisshinbo Mechatronics Inc | Vibration-isolating tool for blower fan, and blower fan structure having the same |
| CN105257565A (en) * | 2015-10-16 | 2016-01-20 | 合肥通用机械研究院 | Low-vibration and low-noise centrifugal fan |
| JP6840297B1 (en) * | 2019-12-25 | 2021-03-10 | 三菱電機株式会社 | External fan fan and rotary electric machine |
| WO2021130924A1 (en) * | 2019-12-25 | 2021-07-01 | 三菱電機株式会社 | Outer fan and rotating electric machine |
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