WO2013097516A1 - 一种转子散热结构 - Google Patents

一种转子散热结构 Download PDF

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Publication number
WO2013097516A1
WO2013097516A1 PCT/CN2012/082758 CN2012082758W WO2013097516A1 WO 2013097516 A1 WO2013097516 A1 WO 2013097516A1 CN 2012082758 W CN2012082758 W CN 2012082758W WO 2013097516 A1 WO2013097516 A1 WO 2013097516A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotor
heat sink
bearing
rotating shaft
heat dissipation
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.)
Ceased
Application number
PCT/CN2012/082758
Other languages
English (en)
French (fr)
Inventor
付桂文
王雄程
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhongshan Broad Ocean Motor Co Ltd
Hubei Queen Ocean Electrical Appliance Manufacture Co Ltd
Original Assignee
Zhongshan Broad Ocean Motor Co Ltd
Hubei Queen Ocean Electrical Appliance Manufacture Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhongshan Broad Ocean Motor Co Ltd, Hubei Queen Ocean Electrical Appliance Manufacture Co Ltd filed Critical Zhongshan Broad Ocean Motor Co Ltd
Publication of WO2013097516A1 publication Critical patent/WO2013097516A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
    • H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/22—Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
    • H02K9/227—Heat sinks

Definitions

  • the utility model relates to a novel rotor heat dissipation structure.
  • the conventional motor rotor assembly only includes a rotating shaft, a rotor core mounted on the rotating shaft, and the rotating shaft is supported at both ends of the bearing. Since the rotor core generates a large heat, part of the heat is transmitted to the bearing through the rotating shaft, so that the bearing temperature rises. This leads to a decrease in bearing life and a shortened motor life, especially in the case of compact motor space, poor ventilation and heat dissipation.
  • the purpose of the utility model is to provide a novel rotor heat dissipation structure, which has a single structure, reduces the temperature of the motor shaft, thereby reducing the bearing temperature of the motor, has a good heat dissipation effect, prolongs the service life of the motor, and ensures the normal operation of the motor.
  • a novel rotor heat dissipation structure comprises a rotating shaft, a rotor and a bearing, the rotor is mounted on the rotating shaft, the rotating shaft is supported on the bearing, and further comprises a heat sink, the heat sink is placed between the rotor and the bearing and nested on the rotating shaft, A gap is provided between the adjacent two fins.
  • the heat sink described above comprises a body, and a mounting hole is arranged in the middle of the body, and an annular boss is protruded upward on the edge of the mounting hole and the body.
  • the body end surface of the heat sink described above is planar.
  • the body of the heat sink described above protrudes upward by a plurality of bumps.
  • the body of the heat sink described above has a plurality of ribs protruding upward.
  • the heat sink described above is made of a metal material having good thermal conductivity.
  • the heat sink described above is stamped.
  • the utility model has the following effects: 1)
  • the utility model adds a plurality of heat sinks, the heat sink is placed between the rotor and the bearing and is nested on the rotating shaft, and is disposed between two adjacent heat sinks. There is a gap, which can effectively reduce the temperature of the rotating shaft, thereby reducing the bearing temperature of the motor, and solving the hidden danger caused by the increase of the bearing temperature caused by the heat generated by the rotor core passing through the rotating shaft to the bearing part.
  • the heat effect is good, the motor life is prolonged, and the motor is guaranteed to work normally; 2) the body of the heat sink is convex upwards with a plurality of bumps, and the body of the heat sink is convex upwards with several ribs to increase the heat dissipation area, and the heat dissipation effect is better; 3) heat dissipation
  • the sheet is made of a metal material with good thermal conductivity, the thickness of the material is less than 2 ⁇ , the weight is light, the heat dissipation area is large, the cost is low, and the effect is good; 4)
  • the heat sink is stamped and formed, and the cost is low, and is suitable for mass production.
  • Figure 1 is a perspective view of the present invention.
  • Figure 2 is a schematic view of the structure of the present invention.
  • FIG 3 is a perspective view of a heat sink according to an embodiment of the present invention.
  • FIG. 4 is a perspective view of a heat sink according to Embodiment 2 of the present invention.
  • Figure 5 is a perspective view of a heat sink of the embodiment of the present invention.
  • Embodiment 1 as shown in FIG. 1, FIG. 2 and FIG. 3, the utility model relates to a novel rotor heat dissipation structure, which comprises a rotating shaft 1, a rotor 2 and a bearing 3.
  • the rotor 2 is mounted on the rotating shaft 1, and the rotating shaft 1 is supported on
  • the bearing 3 further includes a plurality of fins 5 disposed between the rotor 2 and the bearing 3 and nested on the rotating shaft 1, and a gap 6 is disposed between two adjacent fins 5;
  • 5 includes a body 51, and a mounting hole 52 is disposed in the middle of the body 51.
  • the annular boss 53 is upwardly protruded from the edge of the mounting hole 52.
  • the end surface of the body 51 of the heat sink 5 is flat; the heat sink 5 is hot.
  • Embodiment 2 As shown in FIG. 1, FIG. 2 and FIG. 4, the utility model relates to a novel rotor heat dissipation structure, which comprises a rotating shaft 1, a rotor 2 and a bearing 3.
  • the rotor 2 is mounted on the rotating shaft 1, and the rotating shaft 1 is supported on
  • the bearing 3 further includes a plurality of fins 5 disposed between the rotor 2 and the bearing 3 and nested on the rotating shaft 1, and a gap 6 is disposed between two adjacent fins 5;
  • 5 includes a body 51, a mounting hole 52 is disposed in the middle of the body 51, and an annular boss 53 is protruded upwardly on the edge of the mounting hole 52;
  • the body 51 of the heat sink 5 is upwardly convex with a plurality of bumps 54;
  • 5 is made of a metal material having good thermal conductivity, such as aluminum foil; and the heat sink 5 is formed by stamping.
  • Embodiment 3 As shown in FIG. 1, FIG. 2 and FIG. 5, the utility model relates to a novel rotor heat dissipation structure, which comprises a rotating shaft 1, a rotor 2 and a bearing 3.
  • the rotor 2 is mounted on the rotating shaft 1, and the rotating shaft 1 is supported on
  • the bearing 3 further includes a plurality of fins 5, the heat sink 5 is disposed between the rotor 2 and the bearing 3 and nested on the rotating shaft 1, and a gap 6 is disposed between two adjacent fins 5;
  • 5 includes a body 51, a mounting hole 52 is disposed in the middle of the body 51, and an annular boss 53 is protruded upwardly on the edge of the mounting hole 52;
  • the body 51 of the heat sink 5 is upwardly convex with a plurality of ribs 55;
  • 5 is made of a metal material having good thermal conductivity, such as aluminum foil; and the heat sink 5 is formed by stamping.
  • the rotating shaft 1, the rotor 2 and the bearing 3 of the utility model are mounted on the rotating shaft 1.
  • the rotating shaft 1 is supported on the bearing 3, and further comprises a plurality of fins 5, and the fins 5 are placed between the rotor 2 and the bearing 3 and nested.
  • a gap 6 is arranged between two adjacent fins 5.
  • the structure is single, which reduces the temperature of the motor shaft, thereby reducing the bearing temperature of the motor, and has a good heat dissipation effect, prolonging the service life of the motor and ensuring normal operation of the motor.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

一种转子散热结构，包括转轴（1）、转子（2）、轴承（3）和若干个散热片（5），转子（2）安装在转轴（1）上，转轴（1）支承在轴承（3）上，散热片（5）置于转子（2）和轴承（3）之间并嵌套在转轴（1）上，相邻两个散热片（5）之间设有间隙（6）。转子散热结构结构简单，降低电机转轴温度，进而降低电机轴承温度。

Description

一种转子散热结构
技术领域：
本实用新型涉及一种新型的转子散热结构。
背景技术：
传统的电机转子组件， 只包括转轴， 安装在转轴上的转子铁芯， 转轴支承 在轴承的两端， 由于转子铁芯发热较大， 部分热量通过转轴传递到轴承上， 使 轴承温度升高，导致轴承寿命下降，缩短电机寿命，尤其是电机结构空间紧凑， 通风及散热不良的情况下， 这种影响更加严重。
发明内容：
本实用新型的目的是提供一种新型的转子散热结构， 它结构筒单， 降低电 机转轴温度， 进而降低电机轴承温度， 散热效果好， 延长电机使用寿命， 保证 电机正常工作。
本实用新型的目的是通过下述技术方案予以实现的。
一种新型的转子散热结构， 包括转轴、 转子和轴承， 转子安装在转轴上， 转轴支承在轴承上，还包括若干散热片，散热片置于转子和轴承之间并嵌套在 转轴上， 相邻两片散热片之间设有空隙。
上述所述的散热片包括本体， 本体中间设有安装孔， 在安装孔边缘、 本体 上向上凸起环形凸台。
上述所述的散热片的本体端面是平面的。
上述所述的散热片的本体向上凸起若干凸点。
上述所述的散热片的本体向上凸起若干筋条。
上述所述的散热片是热导性好的金属材料制成。
上述所述的散热片是沖压成型的。
本实用新型与现有技术相比， 具有如下效果： 1 )本实用新型通过增加若 干散热片，散热片置于转子和轴承之间并嵌套在转轴上，相邻两片散热片之间 设有空隙， 可以使转轴温度有效降低， 进而降低电机轴承温度， 解决了转子铁 芯发热导致热量通过转轴传递到轴承部位而引起轴承温度上升带来的隐患，散 热效果好， 延长电机使用寿命， 保证电机正常工作； 2 )散热片的本体向上凸 起若干凸点，散热片的本体向上凸起若干筋条，增加散热面积，散热效果更好; 3 )散热片是热导性好的金属材料制成， 材料厚度小于 2匪， 重量轻， 散热面 积大， 低成本， 效果好； 4 )散热片是沖压成型的， 成本低廉， 适用于批量生 产。
附图说明：
图 1 是本实用新型立体图。
图 2 是本实用新型结构示意图。
图 3 是本实用新型实施例一散热片立体图。
图 4 是本实用新型实施例二散热片立体图。
图 5 是本实用新型实施例三散热片立体图。
具体实施方式： 下面通过具体实施例并结合附图对本实用新型作进一步详细的描述。
实施例一， 如图 1、 图 2和图 3所示， 本实用新型是一种新型的转子散热 结构， 包括转轴 1、 转子 2和轴承 3 , 转子 2安装在转轴 1上， 转轴 1支承在 轴承 3上， 还包括若干散热片 5 , 散热片 5置于转子 2和轴承 3之间并嵌套在 转轴 1上， 相邻两片散热片 5之间设有空隙 6; 所述的散热片 5包括本体 51 , 本体 51中间设有安装孔 52 , 在安装孔 52边缘、 本体 51上向上凸起环形凸台 53; 散热片 5的本体 51端面是平面的； 所述的散热片 5是热导性好的金属材 料制成， 如铝箔； 散热片 5是沖压成型的。
实施例二， 如图 1、 图 2和图 4所示， 本实用新型是一种新型的转子散热 结构， 包括转轴 1、 转子 2和轴承 3 , 转子 2安装在转轴 1上， 转轴 1支承在 轴承 3上， 还包括若干散热片 5 , 散热片 5置于转子 2和轴承 3之间并嵌套在 转轴 1上， 相邻两片散热片 5之间设有空隙 6; 所述的散热片 5包括本体 51 , 本体 51中间设有安装孔 52 , 在安装孔 52边缘、 本体 51上向上凸起环形凸台 53; 散热片 5的本体 51向上凸起若干凸点 54; 所述的散热片 5是热导性好的 金属材料制成， 如铝箔； 散热片 5是沖压成型的。 实施例三， 如图 1、 图 2和图 5所示， 本实用新型是一种新型的转子散热 结构， 包括转轴 1、 转子 2和轴承 3, 转子 2安装在转轴 1上， 转轴 1支承在 轴承 3上， 还包括若干散热片 5, 散热片 5置于转子 2和轴承 3之间并嵌套在 转轴 1上， 相邻两片散热片 5之间设有空隙 6; 所述的散热片 5包括本体 51, 本体 51中间设有安装孔 52, 在安装孔 52边缘、 本体 51上向上凸起环形凸台 53; 散热片 5的本体 51向上凸起若干筋条 55; 所述的散热片 5是热导性好的 金属材料制成， 如铝箔； 散热片 5是沖压成型的。
本实用新型转轴 1、 转子 2和轴承 3, 转子 2安装在转轴 1上， 转轴 1支承在轴 承 3上， 还包括若干散热片 5, 散热片 5置于转子 2和轴承 3之间并嵌套在转轴 1 上， 相邻两片散热片 5之间设有空隙 6, 该结构筒单， 降低电机转轴温度， 进而 降低电机轴承温度， 散热效果好， 延长电机使用寿命， 保证电机正常工作。

Claims

权利要求
1. 一种新型的转子散热结构， 包括转轴（ 1 )、转子（ 2 )和轴承（ 3 ), 转子（ 2 ) 安装在转轴（ 1 )上， 转轴（ 1 )支承在轴承（ 3 )上， 其特征在于： 还包括 若干散热片 （ 5 ), 散热片 （ 5 )置于转子（ 2 )和轴承（ 3 )之间并嵌套在转 轴 （1 )上， 相邻两片散热片 （5 )之间设有空隙 （6 )。
2. 根据权利要求 1所述的一种新型的转子散热结构， 其特征在于： 所述的散 热片（ 5 )包括本体（ 51 ),本体（ 51 )中间设有安装孔（ 52 ),在安装孔（ 52 ) 边缘、 本体（51 )上向上凸起环形凸台 （53 )。
3. 根据权利要求 2所述的一种新型的转子散热结构，其特征在于：散热片（ 5 ) 的本体 ( 51 )端面是平面的。
4. 根据权利要求 2所述的一种新型的转子散热结构，其特征在于：散热片（ 5 ) 的本体 ( 51 ) 向上凸起若干凸点 （54 )。
5. 根据权利要求 2所述的一种新型的转子散热结构，其特征在于：散热片（ 5 ) 的本体 ( 51 ) 向上凸起若干筋条（ 55 )。
6. 根据权利要求 1或 2所述的一种新型的转子散热结构， 其特征在于： 所述 的散热片 （5 )是热导性好的金属材料制成。
7. 根据权利要求 6所述的一种新型的转子散热结构，其特征在于：散热片（ 5 ) 是沖压成型的。
PCT/CN2012/082758 2011-12-29 2012-10-11 一种转子散热结构 Ceased WO2013097516A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2011205718320U CN202424409U (zh) 2011-12-29 2011-12-29 一种新型的转子散热结构
CN201120571832.0 2011-12-29

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WO2013097516A1 true WO2013097516A1 (zh) 2013-07-04

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202424409U (zh) * 2011-12-29 2012-09-05 中山大洋电机股份有限公司 一种新型的转子散热结构
CN110022032B (zh) * 2019-03-01 2021-05-25 广东美的厨房电器制造有限公司 电机组件和烤箱

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2330121A (en) * 1940-10-04 1943-09-21 Jack & Heintz Inc Motor cooling system
JPS5563549A (en) * 1978-11-04 1980-05-13 Fanuc Ltd Cooling device for rotary electric machine
CN202424409U (zh) * 2011-12-29 2012-09-05 中山大洋电机股份有限公司 一种新型的转子散热结构

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2330121A (en) * 1940-10-04 1943-09-21 Jack & Heintz Inc Motor cooling system
JPS5563549A (en) * 1978-11-04 1980-05-13 Fanuc Ltd Cooling device for rotary electric machine
CN202424409U (zh) * 2011-12-29 2012-09-05 中山大洋电机股份有限公司 一种新型的转子散热结构

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