WO2020125083A1 - 一种定子冷却引风罩的结构 - Google Patents

一种定子冷却引风罩的结构 Download PDF

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Publication number
WO2020125083A1
WO2020125083A1 PCT/CN2019/105500 CN2019105500W WO2020125083A1 WO 2020125083 A1 WO2020125083 A1 WO 2020125083A1 CN 2019105500 W CN2019105500 W CN 2019105500W WO 2020125083 A1 WO2020125083 A1 WO 2020125083A1
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Prior art keywords
stator
rotor
cooling
cooling air
heat dissipation
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PCT/CN2019/105500
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English (en)
French (fr)
Inventor
张强
吴立华
董继勇
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南京磁谷科技有限公司
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Publication of WO2020125083A1 publication Critical patent/WO2020125083A1/zh

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2205/00—Specific aspects not provided for in the other groups of this subclass relating to casings, enclosures, supports
    • H02K2205/09—Machines characterised by drain passages or by venting, breathing or pressure compensating means

Definitions

  • the invention relates to a structure of a stator cooling hood.
  • the cooling air hood installed on the lower bearing seat component of the magnetic levitation fan generally has only one air intake duct, that is, cooling air enters the hood and cools the inside of the main machine in order from the bottom to the top.
  • the rotor cooling air and the stator cooling air communicate with each other, the heat exchanges, and the cooling effect is general. That is, after the cooling air passes through the lower bearing parts and the stator, the temperature is already high, and the cooling effect on the upper end of the main engine after reaching the upper part of the main engine is general.
  • the present invention is to provide a structure of a stator cooling hood in order to solve the above-mentioned problems in the prior art.
  • a stator cooling hood structure including an upper bearing seat, a lower bearing seat, a stator, a rotor, a casing and a stator cooling hood, the upper bearing seat and the lower bearing seat are respectively It is fixed on the upper and lower ends of the casing, the stator cooling hood is fixed on the lower bearing seat, the stator is fixed in the casing, and an upper heat dissipation cavity is formed between the upper end face of the stator and the lower end face of the upper bearing seat.
  • a lower heat dissipation cavity is formed between the end surface and the upper end surface of the lower bearing seat, the rotor is penetrated in the stator, and a rotation gap is formed between the rotor and the stator, and the upper heat dissipation cavity and the lower heat dissipation cavity penetrate through the rotation gap, and the rotor
  • the lower end passes through the lower bearing seat and extends into the stator cooling hood, and the upper end of the rotor extends into the upper bearing seat;
  • a rotor cooling duct is provided in the stator cooling wind hood, and a stator cooling cavity is formed between the outer wall of the rotor cooling duct and the inner wall of the stator cooling wind hood; a cooling through hole is provided in the direction of the axis of the rotor.
  • the rotor cooling pipe intersects, and the stator cooling cavity communicates with the lower heat dissipation cavity.
  • stator heat dissipation opening is provided on the outer wall of the casing, and the stator heat dissipation opening is in communication with the upper heat dissipation cavity.
  • the upper bearing seat is provided with a rotor heat dissipation opening, and the upper end of the rotor extends into the rotor heat dissipation opening.
  • the lower bearing seat is provided with a plurality of ventilation holes, and the stator cooling cavity communicates with the lower heat dissipation cavity through the ventilation holes.
  • a rotor cooling air inlet is provided on the bottom surface of the stator cooling air cover, and a stator cooling air inlet is provided on the side.
  • the rotor cooling air inlet is connected to the rotor cooling duct, and the stator cooling air inlet is connected to the stator cooling cavity.
  • the present invention has the following beneficial effects: the present invention separates the rotor and stator cooling winds, does not interfere with each other, and each cools to ensure that their respective flows and circulations are smooth, and there is basically no heat exchange between the cooling air of each other, and the cooling effect is good.
  • Figure 1 is a structural diagram of the present invention.
  • the structure of the stator cooling hood of the present invention includes an upper bearing base 1, a lower bearing base 2, a stator 3, a rotor 4, a casing 5 and a stator cooling air cover 6, an upper bearing base 1 and a lower bearing
  • the seat 2 is fixed to the upper and lower ends of the casing 5, the stator cooling hood 6 is fixed to the lower bearing seat 2, the stator 3 is fixed to the casing 5, and the upper end face of the stator 3 and the lower end face of the upper bearing seat 1 are
  • An upper heat dissipation cavity 51 is formed between the lower end surface of the stator 3 and the upper end surface of the lower bearing housing 2, a lower heat dissipation cavity 52 is formed, the rotor 4 is penetrated in the stator 3, and a rotation is formed between the rotor 4 and the stator 3
  • the gap 30 between the upper heat dissipation cavity 51 and the lower heat dissipation cavity 52 is penetrated by the rotation gap 30.
  • the lower end of the rotor 4 passes through
  • a rotor cooling duct 61 is provided in the stator cooling air cover 6, and a stator cooling cavity 60 is formed between the outer wall of the rotor cooling duct 61 and the inner wall of the stator cooling air cover 6.
  • a cooling through hole 41 is provided in the axial direction of the rotor 4, the cooling through hole 41 penetrates the rotor cooling duct 61, and the stator cooling cavity 60 penetrates the lower heat dissipation cavity 52.
  • a stator heat dissipation port 55 is provided on the outer wall of the casing 5, and the stator heat dissipation port 55 communicates with the upper heat dissipation cavity 51.
  • the stator is cooled by cooling air entering the lower heat dissipation cavity 52, the rotating gap 30 and the upper heat dissipation cavity 51 from the stator cooling cavity 60, and discharged from the stator heat dissipation port 55 to achieve cooling of the lower bearing components and the stator.
  • a rotor heat dissipation port 15 is provided on the upper bearing base 1, the upper end of the rotor 4 extends into the rotor heat dissipation port 15, the cooling air enters the cooling through hole 41 from the rotor cooling duct 61, and is discharged by the rotor heat dissipation port 15 to realize the rotor and Cooling of the upper end of the host.
  • vent holes 22 are provided on the lower bearing housing 2, and the stator cooling cavity 60 communicates with the lower heat dissipation cavity 52 through the vent holes 22.
  • the bottom surface of the stator cooling air cover 6 is provided with a rotor cooling air inlet 62, and the side is provided with a stator cooling air inlet 63.
  • the rotor cooling air inlet 62 communicates with the rotor cooling duct 61, and the stator cooling air inlet 63 communicates with the stator cooling cavity 60 .
  • the rotor cooling duct ventilation in the present invention is used to cool the rotor and the upper end of the host, and the stator cooling cavity 60 is used to cool the lower bearing components and the stator.
  • the cooling air between the two is independently cooled, does not interfere with each other, and each has its own Air outlet.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

一种定子冷却引风罩的结构，包括上轴承座（1）、下轴承座（2）、定子（3）、转子（4）、机壳（5）和定子冷却风罩（6），上轴承座（1）与下轴承座（2）分别固定于机壳（5）的上下两端，定子冷却风罩（6）固定于下轴承座（2）上，定子（3）固定于机壳（5）内，且定子（3）与上轴承座（1）之间形成有上散热腔（51），定子（3）与下轴承座（2）之间形成有下散热腔（52），转子（4）穿设于定子（3）内，且转子（4）与定子（3）之间形成有转动间隙（30），转子（4）的下端穿过下轴承座（2）并伸于定子冷却风罩（6）内；在定子冷却风罩（6）内设有转子冷却管道（61），转子冷却管道（61）的外壁与定子冷却风罩（6）的内壁之间形成有定子冷却腔（60）；在转子（4）的轴心方向设有冷却通孔（41），冷却通孔（41）与转子冷却管道（61）相贯通，定子冷却腔（60）与下散热腔（52）相贯通。该结构将转子与定子冷却风分开，互不干扰，各自冷却，保证各自流量与流通流畅，彼此冷却空气基本不发生热交换，冷却效果好。

Description

一种定子冷却引风罩的结构 技术领域：
本发明涉及一种定子冷却引风罩的结构。
背景技术：
磁悬浮风机中的下轴承座部件上安装的冷却风引风罩，一般只有一个进气管道，即冷却风进过引风罩，从下向上依次冷却主机内部。转子冷却风与定子冷却风互相连通，热量相互交换，冷却效果一般。即冷却风经过下轴承部件及定子后，温度已经较高，到达主机上部后对主机上端的冷却效果一般。
发明内容：
本发明是为了解决上述现有技术存在的问题而提供一种定子冷却引风罩的结构。
本发明所采用的技术方案有：一种定子冷却引风罩的结构，包括上轴承座、下轴承座、定子、转子、机壳和定子冷却风罩，所述上轴承座与下轴承座分别固定于机壳的上下两端，定子冷却风罩固定于下轴承座上，定子固定于机壳内，且定子的上端面与上轴承座的下端面之间形成有上散热腔，定子的下端面与下轴承座的上端面之间形成有下散热腔，转子穿设于定子内，且转子与定子之间形成有转动间隙，上散热腔与下散热腔之间通过转动间隙相贯通，转子的下端穿过下轴承座并伸于定子冷却风罩内，转子的上端伸于上轴承座内；
在定子冷却风罩内设有转子冷却管道，转子冷却管道的外壁与定子冷却风罩的内壁之间形成有定子冷却腔；在转子的轴心方向设有冷却通孔，所述冷却通孔与转子冷却管道相贯通，定子冷却腔与下散热腔相贯通。
进一步地，所述机壳的外壁上设有定子散热口，定子散热口与上散热腔相贯通。
进一步地，所述上轴承座上设有转子散热口，转子的上端伸于转子散热口内。
进一步地，所述下轴承座上设有若干通风孔，定子冷却腔通过通风孔与下散热腔相贯通。
进一步地，所述定子冷却风罩的底面设有转子冷却风进口，侧面上设有定子冷却风进口，转子冷却风进口与转子冷却管道相连通，定子冷却风进口与定子冷却腔相连通。
本发明具有如下有益效果：本发明将转子与定子冷却风分开，互不干扰，各自冷却，保证各自流量与流通流畅，彼此冷却空气基本不发生热交换，冷却效果好。
附图说明：
图1为本发明结构图。
具体实施方式：
下面结合附图对本发明作进一步的说明。
如图1，本发明一种定子冷却引风罩的结构，包括上轴承座1、下轴承座2、定子3、转子4、机壳5和定子冷却风罩6，上轴承座1与下轴承座2分别固定于机壳5的上下两端，定子冷却风罩6固定于下轴承座2上，定子3固定于机壳5内，且定子3的上端面与上轴承座1的下端面之间形成有上散热腔51，定子3的下端面与下轴承座2的上端面之间形成有下散热腔52，转子4穿设于定子3内，且转子4与定子3之间形成有转动间隙30，上散热腔51与下散热腔52之间通过转动间隙30相贯通。转子4的下端穿过下轴承座2并伸于定子冷却风罩6内，转子4的上端伸于上轴承座1内。
在定子冷却风罩6内设有转子冷却管道61，转子冷却管道61的外壁与定子冷却风罩6的内壁之间形成有定子冷却腔60。在转子4的轴心方向设有冷却通孔41，冷却通孔41与转子冷却管道61相贯通，定子冷却腔60与下散热腔52相贯通。
在机壳5的外壁上设有定子散热口55，定子散热口55与上散热腔51相贯通。冷却定子是，冷却风从定子冷却腔60进入下散热腔52、转动间隙30和上散热腔51，并从定子散热口55排出，实现下轴承部件及定子的冷却。
在上轴承座1上设有转子散热口15，转子4的上端伸于转子散热口15内，冷却风从转子冷却管道61进入冷却通孔41内，并由转子散热口15排除，实现转子及主机上端的冷却。
在下轴承座2上设有若干通风孔22，定子冷却腔60通过通风孔22与下散热腔52相贯通。
定子冷却风罩6的底面设有转子冷却风进口62，侧面上设有定子冷却风进口63，转子冷却风进口62与转子冷却管道61相连通，定子冷却风进口63与定子冷却腔60相连通。
本发明中的转子冷却管道通风用于转子及主机上端的冷却，定子冷却腔60通风用于下轴承部件及定子的冷却，两者之间的冷却风独立冷却，互不干涉，且各自有各自的出风口。
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下还可以作出若干改进，这些改进也应视为本发明的保护范围。

Claims (5)

  1. 一种定子冷却引风罩的结构，其特征在于：包括上轴承座(1)、下轴承座(2)、定子(3)、转子(4)、机壳(5)和定子冷却风罩(6)，所述上轴承座(1)与下轴承座(2)分别固定于机壳(5)的上下两端，定子冷却风罩(6)固定于下轴承座(2)上，定子(3)固定于机壳(5)内，且定子(3)的上端面与上轴承座(1)的下端面之间形成有上散热腔(51)，定子(3)的下端面与下轴承座(2)的上端面之间形成有下散热腔(52)，转子(4)穿设于定子(3)内，且转子(4)与定子(3)之间形成有转动间隙(30)，上散热腔(51)与下散热腔(52)之间通过转动间隙(30)相贯通，转子(4)的下端穿过下轴承座(2)并伸于定子冷却风罩(6)内，转子(4)的上端伸于上轴承座(1)内；
    在定子冷却风罩(6)内设有转子冷却管道(61)，转子冷却管道(61)的外壁与定子冷却风罩(6)的内壁之间形成有定子冷却腔(60)；在转子(4)的轴心方向设有冷却通孔(41)，所述冷却通孔(41)与转子冷却管道(61)相贯通，定子冷却腔(60)与下散热腔(52)相贯通。
  2. 如权利要求1所述的定子冷却引风罩的结构，其特征在于：所述机壳(5)的外壁上设有定子散热口(55)，定子散热口(55)与上散热腔(51)相贯通。
  3. 如权利要求1所述的定子冷却引风罩的结构，其特征在于：所述上轴承座(1)上设有转子散热口(15)，转子(4)的上端伸于转子散热口(15)内。
  4. 如权利要求1所述的定子冷却引风罩的结构，其特征在于：所述下轴承座(2)上设有若干通风孔(22)，定子冷却腔(60)通过通风孔(22)与下散热腔(52)相贯通。
  5. 如权利要求1所述的定子冷却引风罩的结构，其特征在于：所述定子冷却风罩(6)的底面设有转子冷却风进口(62)，侧面上设有定子冷却风进口(63)，转子冷却风进口(62)与转子冷却管道(61)相连通，定子冷却风进口(63)与定子冷却腔(60)相连通。
PCT/CN2019/105500 2018-12-18 2019-09-12 一种定子冷却引风罩的结构 WO2020125083A1 (zh)

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Publication number Priority date Publication date Assignee Title
CN109462304A (zh) * 2018-12-18 2019-03-12 南京磁谷科技有限公司 一种定子冷却引风罩的结构

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CN109462304A (zh) * 2018-12-18 2019-03-12 南京磁谷科技有限公司 一种定子冷却引风罩的结构
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CN102723834A (zh) * 2012-04-25 2012-10-10 山西北方机械制造有限责任公司 一种永磁同步电机
CN203166694U (zh) * 2013-03-29 2013-08-28 黑龙江弗耐德国茂电机有限公司 强迫风冷变频调速电机
DE102014106455A1 (de) * 2014-05-08 2015-11-12 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Elektromaschine für den Einsatz im KFZ-Bereich
CN104410202A (zh) * 2014-11-24 2015-03-11 北京曙光航空电气有限责任公司 离心泵电机的循液冷却结构
CN107181351A (zh) * 2017-06-29 2017-09-19 四川省金龙华微电机有限公司 一种改进型汽车水箱用电机
CN109462304A (zh) * 2018-12-18 2019-03-12 南京磁谷科技有限公司 一种定子冷却引风罩的结构
CN209389830U (zh) * 2018-12-18 2019-09-13 南京磁谷科技有限公司 一种定子冷却引风罩的结构

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