CN1622425A - 鼓风机用电动机 - Google Patents
鼓风机用电动机 Download PDFInfo
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- CN1622425A CN1622425A CNA2004100973093A CN200410097309A CN1622425A CN 1622425 A CN1622425 A CN 1622425A CN A2004100973093 A CNA2004100973093 A CN A2004100973093A CN 200410097309 A CN200410097309 A CN 200410097309A CN 1622425 A CN1622425 A CN 1622425A
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 24
- 238000004804 winding Methods 0.000 claims description 16
- 229910052742 iron Inorganic materials 0.000 claims description 12
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 4
- 235000000396 iron Nutrition 0.000 claims 1
- 238000009434 installation Methods 0.000 description 3
- 230000004323 axial length Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000003434 inspiratory effect Effects 0.000 description 1
- 230000005405 multipole Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
- F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
- F04D25/064—Details of the rotor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
- F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
- F04D25/0646—Details of the stator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
- F04D29/282—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/22—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/24—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Motor Or Generator Cooling System (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Motor Or Generator Frames (AREA)
Abstract
本发明的鼓风机用电动机,具有罩、经由轴承可以旋转地支承于罩上的电动机轴、固定于电动机轴且外周直径朝向吸入口一侧变小的转子、固定于罩且外周直径朝向吸入口一侧变小的定子、固定于转子的内周面的磁铁。
Description
技术领域
本发明涉及用于鼓风机的鼓风机用电动机。
背景技术
以往的鼓风机用电动机,其转子的轮毂前端部被做成圆锥状,以使吸入气流能够顺畅地被吸入叶片。在这样的鼓风机用电动机中,能够提高鼓风机的鼓风性能,另外还能够降低伴随鼓风的噪音等级。
但是,在将转子的轮毂前端部被做成圆锥状的鼓风机用电动机安装到鼓风机上的时候,为了提高鼓风机的鼓风性能,必须加长鼓风机的叶轮的轴方向的长度,因此会导致鼓风机形状变大。
发明内容
本发明的目的是提供一种鼓风机用电动机,该鼓风机用电动机能够降低鼓风机的噪音等级且不会增大鼓风机的形状地提高鼓风机的鼓风性能。
根据本发明,将提供如下的一种鼓风机用电动机,该鼓风机用电动机具有罩、经由轴承可以旋转地支承在罩的电动机轴、固定于电动机轴且外周直径朝向吸入口一侧变小的转子、固定于罩且外周直径朝向吸入口一侧变小的定子、固定于转子的内周面的磁铁。
在该鼓风机用电动机中,由于转子的外周直径朝向吸入口一侧变小,所以鼓风机的吸入气流沿转子的圆锥形状流动,因此,能够降低鼓风机的噪音等级,且不会增大鼓风机的形状地提高鼓风机的鼓风性能。
附图说明
图1表示具有本发明的鼓风机用电动机的鼓风机的图;
图2是沿图1的A-A线的剖面图;
图3是图1、图2所示的鼓风机的动作说明图;
图4是表示具有本发明的其他的鼓风机用电动机的鼓风机的剖面图;
图5是表示具有本发明的其他的鼓风机用电动机的鼓风机的剖面图;此外
图6是表示具有本发明的其他的鼓风机用电动机的鼓风机的剖面图。
具体实施方式
通过图1、图2说明具有本发明的鼓风机用电动机的鼓风机。在外壳2的一个侧壁上设置有吸入口4,在外壳2的外周面上设置有排出口6。在外壳2上固定有圆筒状的罩8。在罩8上经由含油滑动轴承16能够旋转地支承有电动机轴14。在电动机轴14上固定有轮毂部18,并与轮毂部18一体地设置有转子20。在转子20的内周面上固定有环状的磁铁22,磁铁22在圆周方向上被多极磁化。转子20的外周直径朝向吸入口4一侧即朝向固定有电动机轴14的转子20的轮毂部18的部分一侧变小。转子20的最小直径相对于转子20的最大直径的比率为0.7至0.9。磁铁22的内周直径朝向吸入口4一侧变小。在罩8上固定有定子10。在定子10上设置有电动机绕组12。即,在定子10的槽内收容有绕组12。定子10的外周直径朝向吸入口4一侧变小。定子10的外周和磁铁22的内周之间的空气间隙处于均一状态。通过定子10、转子20等,构成外齿轮方式的鼓风机用无刷DC电动机。与转子20一体地设置有叶轮安装部24,在叶轮安装部24上安装有多片例如80片叶片26,通过多片叶片26构成叶轮28。
在具有该鼓风机用电动机的鼓风机中,若给电动机绕组12通电,则转子20、叶轮28旋转,如图3所示,通过叶轮28的旋转产生离心力,在该离心力的作用下,产生从吸入口4流向叶轮28的外周面的空气流,并从排出口6排出高压气体。
在具有图1、图2所示的鼓风机用电动机的鼓风机中,由于转子20的外周直径朝向吸入口4一侧变小,所以转子20的前端直径变小,在扩大吸入口4的有效面积的同时,吸入气流的方向从轴方向沿转子20的圆锥形状流动,因此能够顺利地改变向径向的朝向,同时,吸入气流能够顺畅地流动到叶轮安装部24附近。因此,能够降低鼓风机的噪音等级。另外,由于叶片26的有效部分A的轴方向长度相对于叶片26的轴方向的全长的比率达到90%,所以即使不增大鼓风机的叶轮28的轴方向的长度、鼓风机的厚度,也能增加吸气量。因此,能够不增大鼓风机的形状地提高鼓风机的鼓风性能。另外,由于在定子10和磁铁22之间产生轴方向的吸引力,所以作为支承电动机轴14的轴承即使采用低价的含油滑动轴承16,也能防止由于轴方向的推力而产生的磁铁22的轴方向的位置偏离,前述轴方向的推力是通过鼓风机的安装姿势条件、叶轮28的旋转而产生的。因此,能够使定子10的中心和磁铁22的磁力中心不偏离地抑制电动机轴14的方向的振动,并且能够降低噪音,能够实现高静压区域的静音化。
根据图4说明具有本发明的其他的鼓风机用电动机的鼓风机。在外壳2上固定有罩30,在罩30上固定有定子10,另外,在罩30上经由含油滑动轴承16能够旋转地支承有电动机轴14。此外,罩30的外周直径朝向吸入口4一侧变小。
在图4所示的鼓风机用电动机中,能够降低鼓风机的噪音等级,另外,能够不增大鼓风机的形状地提高鼓风机的鼓风性能,此外,定子10的中心和磁铁22的磁力中心也不会发生偏移。另外,由于能够增大固定于壳体30的罩2上的部分的直径,所以能够提高转子20的支承刚性,因此,能够降低旋转过程中的叶轮28的振动。特别是,在向大型的鼓风机上安装鼓风机用电动机的时候,降低噪音的效果很明显。
另外,在图2~图4所示的定子10上存在有多个主磁极,在每个主磁极上安装卷绕有电动机绕组12,将定子的定子轭铁按照各个主磁极进行分割,在每个分离定子轭铁上卷装电动机绕组之后,如果连结卷装有电动机绕组的分离定子轭铁,则能够容易地制造鼓风机用电动机。
通过图5,说明具有本发明的其他的鼓风机用电动机的鼓风机。在罩8上经由转动轴承38能够旋转地支承有电动机轴14。在罩8上固定有中心轭铁32及2组分离定子轭铁34,通过2组分离定子轭铁34构成定子40,定子40的外周直径朝向吸入口4一侧变小。2组分离定子轭铁34由各主磁极分离,2组分离定子轭铁34分别具有从中心向半径方向外方延伸的主磁极,2组分离定子轭铁34的主磁极互相错开180度的电角度。中心轭铁32使2组分离定子轭铁34的中心部之间磁短路。通过2组分离定子轭铁34夹持电动机绕组36,在电动机绕组36的中心配置有中心轭铁32。将电动机绕组36卷绕到绕线管上,电动机绕组36为圆环形状,电动机绕组36的外周直径朝向吸入口4一侧变小。
在图5所示的鼓风机用电动机中,能够降低鼓风机的噪音等级,另外,能够不增大鼓风机的形状地提高鼓风机的鼓风性能,此外,由于在定子40和磁铁22之间产生有轴方向的吸引力,所以定子40的中心和磁铁22的磁力中心不会发生偏移。
通过图6,说明具有本发明的其他的鼓风机用电动机的鼓风机。在外壳2上固定有罩42,在罩42上固定有定子40,另外,在罩42上经由转动轴承38能够旋转地支承有电动机轴14。此外,罩42的外周直径朝向吸入口4一侧变小。
在图6所示的鼓风机用电动机中,能够降低鼓风机的噪音等级,另外,能够不增大鼓风机的形状地提高鼓风机的鼓风性能,此外,定子40的中心和磁铁22的磁力中心不会发生偏移。另外,由于能够增大固定于壳体42的罩2上的部分的直径,所以能够提高转子20的支承刚性,因此,能够降低旋转过程中的叶轮28的振动。
此外,在上述实施方式中,虽然在外壳2上固定有罩8、30、42,但是也可以使外壳和罩一体化。
Claims (6)
1.一种被用于在外壳的一个侧壁上设置有吸入口的鼓风机、并含有以下部件的鼓风机用电动机,其具有:
(a)罩;
(b)经由轴承能够旋转地支承于上述罩的电动机轴;
(c)固定于上述电动机轴上且外周直径朝向上述吸入口一侧变小的转子;
(d)固定于上述罩且外周直径朝向上述吸入口一侧变小的定子;
(e)固定于上述转子的内周面的磁铁。
2.如权利要求1所述的鼓风机用电动机,其特征在于,上述磁铁的内周直径朝向上述吸入口一侧变小。
3.如权利要求1所述的鼓风机用电动机,其特征在于,上述罩的外周直径朝向上述吸入口一侧变小。
4.如权利要求1所述的鼓风机用电动机,其特征在于,上述转子的最小直径相对于上述转子的最大直径的比率为0.7至0.9。
5.如权利要求1所述的鼓风机用电动机,其特征在于,上述定子具有按各个主磁极进行分离的分离定子轭铁,在每个上述分离定子轭铁上卷装有电动机绕组。
6.如权利要求1所述的鼓风机用电动机,其特征在于,2组上述分离定子轭铁分别具有从中心向半径方向外方延伸的主磁极,2组上述定子轭铁的主磁极互相错开180度的电角度,具有使2组上述定子轭铁的中心部之间磁短路的中心轭铁,通过2组上述定子轭铁夹持上述电动机绕组,在上述电动机绕组的中心配置有上述中心轭铁,上述电动机绕组为圆环形状,上述电动机绕组的外直径朝向上述吸入口一侧变小。
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JP2003398527 | 2003-11-28 | ||
JP2003398527A JP3809438B2 (ja) | 2003-11-28 | 2003-11-28 | 遠心ブロワ |
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CN1622425A true CN1622425A (zh) | 2005-06-01 |
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CNA2004100973093A Pending CN1622425A (zh) | 2003-11-28 | 2004-11-26 | 鼓风机用电动机 |
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US (1) | US20050116579A1 (zh) |
EP (1) | EP1536142B1 (zh) |
JP (1) | JP3809438B2 (zh) |
CN (1) | CN1622425A (zh) |
DE (1) | DE602004006587T2 (zh) |
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SE8203884L (sv) * | 1982-06-23 | 1983-12-24 | Philips Svenska Ab | Konisk motor och motorarrangemang innefattande fyra koniska motorer |
US4659951A (en) * | 1986-02-14 | 1987-04-21 | General Motors Corporation | Brushless blower motor with load proportional cooling for control circuitry |
JPH03228039A (ja) * | 1989-11-16 | 1991-10-09 | Fuji Photo Film Co Ltd | 絞りの電磁駆動装置 |
DE4127134B4 (de) * | 1991-08-15 | 2004-07-08 | Papst Licensing Gmbh & Co. Kg | Diagonallüfter |
ATE159326T1 (de) * | 1994-02-05 | 1997-11-15 | Papst Motoren Gmbh & Co Kg | Lüfter mit einem lüfterrad |
DE10055392A1 (de) * | 2000-11-09 | 2002-06-06 | Zf Sachs Ag | Antriebseinheit |
US6386839B1 (en) * | 2000-12-28 | 2002-05-14 | Wen-Hao Chuang | High performance radiator fan |
TW497783U (en) * | 2001-02-27 | 2002-08-01 | Delta Electronics Inc | Micro motor structure |
-
2003
- 2003-11-28 JP JP2003398527A patent/JP3809438B2/ja not_active Expired - Fee Related
-
2004
- 2004-11-24 US US10/995,163 patent/US20050116579A1/en not_active Abandoned
- 2004-11-26 CN CNA2004100973093A patent/CN1622425A/zh active Pending
- 2004-11-26 DE DE602004006587T patent/DE602004006587T2/de not_active Expired - Fee Related
- 2004-11-26 EP EP04257367A patent/EP1536142B1/en not_active Not-in-force
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111664101A (zh) * | 2009-11-19 | 2020-09-15 | 瑞思迈发动机及马达技术股份有限公司 | 鼓风机 |
CN111664101B (zh) * | 2009-11-19 | 2022-03-15 | 瑞思迈发动机及马达技术股份有限公司 | 鼓风机 |
CN116014989A (zh) * | 2023-01-13 | 2023-04-25 | 苏州英磁新能源科技有限公司 | 集成控制器的轮毂电机 |
CN116014989B (zh) * | 2023-01-13 | 2023-06-13 | 苏州英磁新能源科技有限公司 | 集成控制器的轮毂电机 |
Also Published As
Publication number | Publication date |
---|---|
DE602004006587T2 (de) | 2008-01-31 |
EP1536142B1 (en) | 2007-05-23 |
JP2005160264A (ja) | 2005-06-16 |
JP3809438B2 (ja) | 2006-08-16 |
DE602004006587D1 (de) | 2007-07-05 |
EP1536142A1 (en) | 2005-06-01 |
US20050116579A1 (en) | 2005-06-02 |
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