JP2006274812A - Axial fan - Google Patents
Axial fan Download PDFInfo
- Publication number
- JP2006274812A JP2006274812A JP2005090660A JP2005090660A JP2006274812A JP 2006274812 A JP2006274812 A JP 2006274812A JP 2005090660 A JP2005090660 A JP 2005090660A JP 2005090660 A JP2005090660 A JP 2005090660A JP 2006274812 A JP2006274812 A JP 2006274812A
- Authority
- JP
- Japan
- Prior art keywords
- stator
- core
- space
- axial fan
- outer diameter
- 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
- 230000002093 peripheral effect Effects 0.000 claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- 239000000853 adhesive Substances 0.000 claims abstract description 6
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 238000003475 lamination Methods 0.000 claims description 3
- 229920002379 silicone rubber Polymers 0.000 abstract description 2
- 239000004945 silicone rubber Substances 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000001629 suppression Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- OELFLUMRDSZNSF-OFLPRAFFSA-N (2R)-2-[[oxo-(4-propan-2-ylcyclohexyl)methyl]amino]-3-phenylpropanoic acid Chemical group C1CC(C(C)C)CCC1C(=O)N[C@@H](C(O)=O)CC1=CC=CC=C1 OELFLUMRDSZNSF-OFLPRAFFSA-N 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
Abstract
Description
本発明は、軸流ファン、特に小型軸流ファンの振動抑制に係る改良に関する。 The present invention relates to an improvement related to vibration suppression of an axial fan, particularly a small axial fan.
回転動作に起因する振動とこれに付随する騒音は、回転体の避けられない改善課題であり、本願発明に係る軸流ファンにおいても、終局の無いものとなっていることは周知の通りである。 It is well known that the vibration caused by the rotation operation and the noise accompanying this are unavoidable improvement problems of the rotating body, and the axial flow fan according to the present invention is endless. .
詳細は同公報に譲り省略するが、上述特許文献に示す提案もその一例であって、相応の効果を実現してはいるが、これで善しとするに至っていないのが現状と言える。 Although the details are omitted in the publication, the proposal shown in the above-mentioned patent document is an example, and although the corresponding effect is realized, it can be said that the present situation is not good.
上述のような従来技術に成る軸流ファンの解決すべき課題は、固定保持の信頼性を損なうことなくベンチュリーケース側への電動機動作時における振動伝播を抑制することの実現にある。 The problem to be solved by the axial fan according to the prior art as described above is to realize the suppression of vibration propagation during the operation of the electric motor to the venturi case side without impairing the reliability of fixing and holding.
本発明に成る軸流ファンは、駆動用電動機の固定子を形成するコアが電磁鋼板の型内積層で構成されるもので、軸受箱の外周面に固定保持される固定子のコアが、軸受箱外径に遊嵌する内径小の電磁鋼板所定数と、軸受箱外径との間に空間を形成する内径大の電磁鋼板所定数とより成り、該軸受箱外径との間の空間と、固定子側端面と前記軸受箱外周奥端部の胴当りとの間の双方に、弾性部材を介在させ、好ましくは、 In the axial fan according to the present invention, the core that forms the stator of the driving motor is configured by in-mold lamination of electromagnetic steel plates, and the stator core that is fixedly held on the outer peripheral surface of the bearing box is the bearing. A predetermined number of electromagnetic steel sheets having a small inner diameter that are loosely fitted to the outer diameter of the box, and a predetermined number of electromagnetic steel sheets having a large inner diameter that form a space between the outer diameter of the bearing box, and a space between the outer diameter of the bearing box and In addition, an elastic member is interposed between both the stator side end surface and the outer periphery of the outer periphery of the bearing box, preferably,
前記コア内周面における軸受箱外径との間の空間が、積層厚みのほぼ中央に形成され、また、 A space between the outer diameter of the bearing box on the inner peripheral surface of the core is formed at approximately the center of the laminated thickness,
前記固定子側とベンチュリーケース側との間に介在する弾性部材は所謂Ｏリングもしくは硬化後も弾性を備える接着剤のブロックであって、 The elastic member interposed between the stator side and the venturi case side is a so-called O-ring or an adhesive block having elasticity even after curing,
これらを緩衝材として、ベンチュリーケース側への電動機動作時の振動伝播を抑制するように構成されている。 These are used as cushioning materials so as to suppress vibration propagation during operation of the electric motor to the venturi case side.
本発明に成る軸流ファンは、固定保持の信頼性を損なうことなくベンチュリーケース側への電動機動作時における振動伝播を抑制することを実現している。 The axial fan according to the present invention achieves suppression of vibration propagation during the operation of the electric motor to the venturi case without impairing the reliability of fixing and holding.
以下図面により本発明の実施例を説明する。 Embodiments of the present invention will be described below with reference to the drawings.
図１は、本願発明に成る軸流ファンの例の、電動機固定子の結合保持の様子を示す断面図で、固定子と軸受箱とが、円筒嵌合部と、固定子を形成するコイル絶縁部材の内周端縁と軸受箱外周面の胴当り段差部の双方に、弾性を備える環状部材例えばＯリングを介挿している。 FIG. 1 is a cross-sectional view showing an example of an axial flow fan according to the present invention, in which a stator of a motor is coupled and held, where a stator and a bearing box form a cylindrical fitting portion and coil insulation that forms the stator. An annular member having elasticity, such as an O-ring, is inserted in both the inner peripheral edge of the member and the stepped portion on the outer periphery of the bearing housing.
図２は、上述図１の例の両者結合前を示す断面図で、予め固定子側のコア内周面にＯリングを挿入しておき（ｂ）、この状態で、ベンチュリーケースの一部である軸受箱を形成する小径円筒部の外周面に挿入（ａ）する様子を示すものであるが、この挿入・結合手段そのものに新規性・進歩性がある訳でないことは自明である。 FIG. 2 is a cross-sectional view of the example of FIG. 1 before the coupling, in which an O-ring is inserted in advance in the core inner peripheral surface of the stator side (b), and in this state, a part of the venturi case The state of insertion (a) into the outer peripheral surface of a small-diameter cylindrical portion forming a bearing box is shown, but it is obvious that this insertion / coupling means itself is not novel or inventive.
図３は、上述図１の例に使用される固定子コアを示す正面図（ａ）、断面図（ｂ）、背面図（ｃ）で、所定数の電磁鋼板は、型内積層手段、所謂ファスティック構造で締結保持されている。 FIG. 3 is a front view (a), a cross-sectional view (b), and a rear view (c) showing the stator core used in the example of FIG. 1 described above. Fastened and held in a fast structure.
上述ファスティック構造は、所定の形状に抜き形成する工程内で同時に積層固定を行うべく、所謂半抜き結合部を有するものであるが、この工程において内径の異なる鋼板を所望の数毎に積層保持しつつ、更に全体の積層締結を行うもので、該技術は周知のものである。 The above-mentioned Fastic structure has a so-called half-punched joint so that it can be laminated and fixed at the same time in the process of punching and forming into a predetermined shape. However, this technique is well-known in that the entire stack is fastened.
本願発明は、図１乃至図３に例示するように、コア積層厚のほぼ中央部に、内径の大きな電磁鋼板を所要数配置して、この内径大により形成される軸受箱外周面との間の空間を、緩衝材となる弾性部材介挿に供するようにしている。 In the present invention, as illustrated in FIGS. 1 to 3, a required number of electromagnetic steel plates having a large inner diameter are arranged at substantially the center of the core lamination thickness and between the outer peripheral surface of the bearing box formed by the large inner diameter. This space is provided for insertion of an elastic member serving as a cushioning material.
また、上述し図１に示すように、コア内周面への弾性部材介挿と共に、固定子を形成するコイル絶縁部材の内周端縁と軸受箱外周面の胴当り段差部との間にも弾性部材を介挿することで、径方向・軸方向双方で、電動機からの振動がベンチュリーケース側に伝播しないようにしている。 As described above and shown in FIG. 1, the elastic member is inserted into the inner peripheral surface of the core, and between the inner peripheral edge of the coil insulating member forming the stator and the stepped portion on the outer periphery of the bearing housing. In addition, by inserting an elastic member, vibration from the motor is prevented from propagating to the venturi case side in both the radial direction and the axial direction.
上述介挿される弾性部材は、常態で可撓性・弾性を備えるものであればよいが、上述汎用されるＯリングでは、固着手段として所定の接着強度を備える接着剤の併用となり、介挿部材の形成と接着手段を兼ねるものとして、シリコーンゴム接着剤の採用も有効である。 The elastic member to be inserted is not limited as long as it has flexibility and elasticity in a normal state. However, in the above-described O-ring, an adhesive having a predetermined adhesive strength is used in combination as an adhering means. Adoption of a silicone rubber adhesive is also effective as a means for both forming the film and bonding means.
本発明に成る軸流ファンは、固定保持の信頼性を維持しつつベンチュリーケース側への電動機の振動伝播抑制を実現して、価格競争力に強く、しかも低騒音のニーズに広く応えることができる。 The axial fan according to the present invention can suppress the vibration propagation of the electric motor to the venturi case side while maintaining the reliability of the fixed holding, and can widely meet the needs of high price competitiveness and low noise. .
１ ベンチュリーケース
１−１ 風洞部
１−２ その内周面が軸受箱を形成する小径円筒部
１−２１ 小径円筒部の外周面
１−２２ 段差部
２ 羽根車
３ 電動機
３−１ 固定子
３−１１ 固定子のコア
３−１１０ コアを構成する電磁鋼板
３−１１１ コアの内周面
３−１１２ 小空間
４ 弾性部材
DESCRIPTION OF SYMBOLS 1 Venturi case 1-1 Wind tunnel part 1-2 The small diameter cylindrical part in which the internal peripheral surface forms a bearing box 1-21 The outer peripheral surface of a small diameter cylindrical part 1-22 Step part 2 Impeller 3 Electric motor 3-1 Stator 3- DESCRIPTION OF SYMBOLS 11 Core of stator 3-110 Magnetic steel plate which comprises core 3-111 Inner peripheral surface of core 3-112 Small space 4 Elastic member
Claims (4)
前記軸受箱の外周面に固定保持される固定子のコアが、軸受箱外径に遊嵌する内径小の電磁鋼板所定数と、軸受箱外径との間に空間を形成する内径大の電磁鋼板所定数とより成り、該軸受箱外径との間の空間と、固定子側端面と前記軸受箱外周奥端部の胴当りとの間の双方に、弾性部材を介在させることで、ベンチュリーケース側への電動機動作時の振動伝播を抑制するように構成されていること、を特徴とする軸流ファン。 A venturi case having a cylindrical wind tunnel portion and a small-diameter cylindrical portion forming a bearing box, and a rotor hub in which a plurality of blades opposed to each other through a small gap are implanted and held on the inner peripheral surface of the wind tunnel portion, and is rotatable. In an axial fan including an impeller supported by a shaft and an electric motor that drives the impeller, a core that forms a stator of the electric motor is configured by in-mold lamination of electromagnetic steel plates.
A stator core fixedly held on the outer peripheral surface of the bearing housing has a large inner diameter electromagnetic space that forms a space between a predetermined number of electromagnetic steel plates having a small inner diameter that are loosely fitted to the outer diameter of the bearing housing and the outer diameter of the bearing housing. A predetermined number of steel plates, and an elastic member is interposed between the space between the outer diameter of the bearing housing and the end face of the stator and the outer periphery of the outer periphery of the bearing housing, thereby providing a venturi. An axial fan characterized by being configured to suppress vibration propagation during operation of the electric motor to the case side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005090660A JP2006274812A (en) | 2005-03-28 | 2005-03-28 | Axial fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005090660A JP2006274812A (en) | 2005-03-28 | 2005-03-28 | Axial fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2006274812A true JP2006274812A (en) | 2006-10-12 |
Family
ID=37209828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2005090660A Pending JP2006274812A (en) | 2005-03-28 | 2005-03-28 | Axial fan |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2006274812A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101954346A (en) * | 2010-08-23 | 2011-01-26 | 西安航空动力股份有限公司 | Method and tool for coating organic silicon resin wearable layer of compressor stator component |
| US8391311B2 (en) | 2007-08-13 | 2013-03-05 | Lg Electronics Inc. | Method for transmitting VoIP packet |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01157565U (en) * | 1988-04-12 | 1989-10-31 | ||
| JPH0472847U (en) * | 1990-11-05 | 1992-06-26 | ||
| JPH04244748A (en) * | 1991-01-31 | 1992-09-01 | Japan Servo Co Ltd | Stator yoke of coreless radial gap type brushless motor |
| JPH04289743A (en) * | 1991-03-18 | 1992-10-14 | Japan Servo Co Ltd | Manufacture of yoke of coreless radial gap type brushless motor |
| US5619389A (en) * | 1995-02-10 | 1997-04-08 | Seagate Technology, Inc. | Stator isolation for spindle motor |
| US5694268A (en) * | 1995-02-10 | 1997-12-02 | Seagate Technology, Inc. | Spindle motor having overmolded stator |
| JPH11299179A (en) * | 1998-04-08 | 1999-10-29 | Asmo Co Ltd | Armature |
| JP2000192899A (en) * | 1998-12-25 | 2000-07-11 | Japan Servo Co Ltd | Axial flow fan |
| US6104570A (en) * | 1998-09-18 | 2000-08-15 | Seagate Technology, Inc. | Disc drive spindle motor having tuned stator with adhesive grooves |
| JP2002112517A (en) * | 2000-09-29 | 2002-04-12 | Sankyo Seiki Mfg Co Ltd | Motor |
| JP2005020906A (en) * | 2003-06-26 | 2005-01-20 | Toshiba Tec Corp | Motor |
-
2005
- 2005-03-28 JP JP2005090660A patent/JP2006274812A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01157565U (en) * | 1988-04-12 | 1989-10-31 | ||
| JPH0472847U (en) * | 1990-11-05 | 1992-06-26 | ||
| JPH04244748A (en) * | 1991-01-31 | 1992-09-01 | Japan Servo Co Ltd | Stator yoke of coreless radial gap type brushless motor |
| JPH04289743A (en) * | 1991-03-18 | 1992-10-14 | Japan Servo Co Ltd | Manufacture of yoke of coreless radial gap type brushless motor |
| US5619389A (en) * | 1995-02-10 | 1997-04-08 | Seagate Technology, Inc. | Stator isolation for spindle motor |
| US5694268A (en) * | 1995-02-10 | 1997-12-02 | Seagate Technology, Inc. | Spindle motor having overmolded stator |
| JPH11299179A (en) * | 1998-04-08 | 1999-10-29 | Asmo Co Ltd | Armature |
| US6104570A (en) * | 1998-09-18 | 2000-08-15 | Seagate Technology, Inc. | Disc drive spindle motor having tuned stator with adhesive grooves |
| JP2000192899A (en) * | 1998-12-25 | 2000-07-11 | Japan Servo Co Ltd | Axial flow fan |
| JP2002112517A (en) * | 2000-09-29 | 2002-04-12 | Sankyo Seiki Mfg Co Ltd | Motor |
| JP2005020906A (en) * | 2003-06-26 | 2005-01-20 | Toshiba Tec Corp | Motor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8391311B2 (en) | 2007-08-13 | 2013-03-05 | Lg Electronics Inc. | Method for transmitting VoIP packet |
| US8396070B2 (en) | 2007-08-13 | 2013-03-12 | Lg Electronics Inc. | Method for transmitting VoIP packet |
| CN101954346A (en) * | 2010-08-23 | 2011-01-26 | 西安航空动力股份有限公司 | Method and tool for coating organic silicon resin wearable layer of compressor stator component |
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