WO2020186805A1 - 一种自散热无刷电机 - Google Patents

一种自散热无刷电机 Download PDF

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Publication number
WO2020186805A1
WO2020186805A1 PCT/CN2019/120354 CN2019120354W WO2020186805A1 WO 2020186805 A1 WO2020186805 A1 WO 2020186805A1 CN 2019120354 W CN2019120354 W CN 2019120354W WO 2020186805 A1 WO2020186805 A1 WO 2020186805A1
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Prior art keywords
heat
stator
rotor
self
rotating shaft
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PCT/CN2019/120354
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English (en)
French (fr)
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戴茂存
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扬州市华胜机电制造有限公司
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Publication of WO2020186805A1 publication Critical patent/WO2020186805A1/zh

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    • 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
    • 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
    • H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
    • 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

Definitions

  • the invention relates to the field of motors, in particular to a self-heating brushless motor.
  • Brushless motors are a common type of motor on the market. Brushless motors usually face the problem of heat during use. Excessive heat not only causes the loss of electrical energy, but also affects the service life of the motor, so we usually add some
  • the heat dissipation structure helps the motor to dissipate heat.
  • the addition of the heat dissipation structure usually makes the motor structure not compact enough. Therefore, it is difficult to achieve a compact structure and good heat dissipation effect for the brushless motor at the same time. If the structure of the brushless motor is not compact, or The generated heat cannot be dissipated in time, which will cause the motor to fail to operate normally or have a short service life.
  • the Chinese invention patent with the announcement number CN103219833B discloses "a motor heat dissipation structure".
  • the heat energy on the motor shell is guided to the rear of the motor through a heat pipe, and then the heat dissipation area is enlarged by the heat dissipation fins.
  • This structure enhances the heat dissipation of the motor. Performance, but greatly expands the volume of the motor, and it cannot quickly take away the heat inside the motor.
  • the technical problem to be solved by the present invention is to provide a self-heating brushless motor with excellent heat dissipation effect and compact structure.
  • a self-heating brushless motor comprising a cylindrical motor housing, a front end cover, a rear end cover, a stator and a rotor arranged vertically, one side of the cylindrical motor housing Closed and connected with the front cover, and the other side is closed and connected with the rear cover.
  • the inner side of the cylindrical motor shell is attached to the stator, the inner side of the stator is attached to the rotor, and the rotor is provided with a rotating shaft.
  • the rotating shaft extends to the outside of the rotor on both sides ,
  • the top of the stator is embedded with a number of heat collecting fins, the heat collecting fins are in contact with a radiating plate, a bearing is arranged coaxially in the middle of the radiating plate, the inner ring of the bearing is connected with the rotating shaft key, and a fan fixed to the rotating shaft is arranged above the bearing.
  • the heat inside the motor is concentrated, and the heat inside the motor is discharged through the fan.
  • a plurality of heat collecting plates are embedded in the cylindrical motor shell, a plurality of gaps are opened on the stator, and the inner side of the heat collecting plate is engaged with the gap correspondingly.
  • Several cooling fins are evenly arranged in the space, and the internal heat of the motor is further dissipated through the cooling fins, and the heat dissipation performance of the motor is further improved.
  • the rear end cover has a net-like skeleton structure to ensure the permeability of the motor.
  • the middle of the fan is connected with the rotating shaft key, and the fan is fixed on the top of the rotating shaft to realize the coaxial rotation of the fan and the rotating shaft.
  • a plurality of mounting plates are arranged on the edge of the radiating plate, and the mounting plates are fixed on the top of the stator to realize the fixing of the radiating plate and ensure the coaxial rotation of the bearing and the rotating shaft.
  • the heat collecting plate is made of carbon fiber composite material, which ensures the stability of the motor and improves the thermal conductivity of the cylindrical motor housing.
  • heat collecting fins are arranged on the top of the stator, while the heat collecting fins are in contact with the radiating plate, and a bearing is arranged coaxially in the middle of the radiating plate, so that the inner ring of the bearing is connected with the shaft key, and the stator is transferred to the radiating plate through the heat collecting fins
  • the heat on the radiator plate transfers the heat from the rotor to the radiator plate through the bearing, and the fan rotates coaxially with the rotating shaft to speed up the air flow around the radiator plate and take away the heat on the radiator plate, so as to achieve the effect of rapid heat dissipation of the motor and slow down the internal components of the motor
  • the aging of the motor extends the service life of the motor.
  • a number of heat collecting plates are embedded in the cylindrical motor shell, so that the heat collecting plate is engaged with the gap provided on the stator, so as to further take away the heat generated by the stator.
  • the heat sink dissipates heat and further ensures the heat dissipation performance of the motor.
  • Figure 1 is an exploded view of the present invention
  • FIG. 2 is a schematic diagram of the connecting structure of the heat sink and the bearing of the present invention.
  • FIG. 3 is a schematic diagram of the fan structure of the present invention.
  • Figure 4 is a schematic diagram of the internal component connection structure of the present invention.
  • Figure 5 is a schematic diagram of the external structure of the present invention.
  • a self-heating brushless motor includes a cylindrical motor housing 1, a front end cover 2, a rear end cover 3, a stator 4 and a rotor 5 arranged vertically, one side of the cylindrical motor housing 1 Closed and connected with the front end cover 2, the other side is closed and connected with the rear end cover 3.
  • a stator 4 is attached to the inner side of the cylindrical motor housing 1
  • a rotor 5 is attached to the inner side of the stator 4
  • a shaft 6 and a shaft 6 are provided on the rotor 5
  • a self-heating brushless motor In this embodiment, a self-heating brushless motor.
  • a number of heat collecting plates 11 are embedded in the cylindrical motor shell 1, and a number of gaps 12 are opened on the stator 4.
  • the inner side of the heat collecting plate 11 is engaged with the gap 12 correspondingly, and two A number of heat sinks 13 are evenly arranged between the heat collecting plates 11.
  • the back end cover 3 is a net-like skeleton structure.
  • the middle of the fan 10 is keyed to the rotating shaft 6, and the fan 10 is fixed on the top of the rotating shaft 6.
  • a number of mounting plates 14 are provided on the edge of the heat sink 8 and the mounting plates 14 are fixed on the top of the stator 4.
  • the heat collecting plate 11 is made of carbon fiber composite material.
  • the heat collecting fins are in contact with the radiating plate, and the bearing is arranged coaxially in the middle of the radiating plate, so that the inner ring of the bearing is connected with the shaft key, and the heat collecting fin is transferred to the radiating plate.
  • the heat transfers the heat from the rotor to the heat sink through the bearing, and the fan rotates coaxially with the rotating shaft to speed up the air flow around the heat sink and take away the heat on the heat sink, so as to achieve the effect of rapid heat dissipation inside the motor.
  • a number of heat collecting plates are embedded in the casing to make the heat collecting plate engage with the gap provided on the stator to further take away the heat generated by the stator.
  • the heat sink provided on one side of the heat collecting plate dissipates the heat to further ensure Improve the heat dissipation performance of the motor.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Brushless Motors (AREA)

Abstract

本发明公开一种自散热无刷电机，包括竖直设置的筒状电机壳、前端盖、后端盖、定子及转子，筒状电机壳一侧与前端盖封闭连接，另一侧与后端盖封闭连接，筒状电机壳内侧贴设有定子，定子内侧贴设有转子，转子上设有转轴，转轴向转子两侧延伸至转子外侧，定子顶部嵌有若干集热片，集热片接触连接有散热盘，散热盘中间同轴设置有轴承，轴承内圈与转轴键连接，位于轴承上方设置有与转轴固定的风扇，本发明通过散热盘集中电机内部的热量，通过风扇将电机内部的热量排出，以自散热方式提升了电机的散热性能，不仅结构紧凑，而且散热效果优异。

Description

一种自散热无刷电机 技术领域
本发明涉及涉及电机领域，尤其是一种自散热无刷电机。
背景技术
无刷电机是市面上较为常见的一种电机，无刷电机在使用过程中通常会面临发热的问题，发热过多不仅导致电能的损失，同时也影响电机的使用寿命，因此我们通常会外加部分散热结构来帮助电机散热，散热结构的添加通常又会使得电机结构不够紧凑，因此要想使得无刷电机同时实现结构紧凑且散热效果好是比较困难实现的，如果无刷电机结构不紧凑，或者产生的热量无法及时散发出去，都会导致电机无法正常运行，或者使用寿命较短。
公告号为CN103219833B的中国发明专利，公开了“一种电机散热结构”，通过热管将电机外壳上的热能引至电机尾部，然后通过散热翅片扩大散热面积，这种结构虽然增强了电机的散热性能，但是大大扩大了电机的体积，还有无法快速带走电机内部的热量。
发明内容
本发明要解决的技术问题是提供一种自散热无刷电机，散热效果优异且结构紧凑。
为了实现上述目的，本发明采用的技术方案是：一种自散热无刷电机，包括竖直设置的筒状电机壳、前端盖、后端盖、定子及转子，筒状电机壳一侧与前端盖封闭连接，另一侧与后端盖封闭连接，筒状电机壳内侧贴设有定子，定子内侧贴设有转子，转子上设有转轴，转轴向转子两侧延伸至转子外侧，定子顶部嵌有若干集热片，集热片接触连接有散热盘，散热盘中间同轴设置有轴承，轴承内圈与转轴键连接，位于轴承上方设置有与转轴固定的风扇，通过散热盘 集中电机内部的热量，通过风扇将电机内部的热量排出。
上述的一种自散热无刷电机，所述筒状电机壳上嵌有若干集热板，所述定子上开有若干间隙，集热板内侧与间隙对应卡合，两个集热板之间均匀设置有若干散热片，通过散热片进一步散走电机内部热量，进一步提升电机的散热性能。
上述的一种自散热无刷电机，所述后端盖为网状骨架结构，保证了电机通透性。
上述的一种自散热无刷电机，所述风扇中间与所述转轴键连接，风扇固定在转轴顶部，实现风扇与转轴同轴转动。
上述的一种自散热无刷电机，所述散热盘边缘设有若干安装片，安装片固定在定子顶部，实现散热盘的固定，保证了轴承与转轴同轴转动。
上述的一种自散热无刷电机，所述集热板采用炭纤维复合材料制成，保证了电机的稳固性同时提升了筒状电机壳的导热性能。
与现有技术相比，本发明的有益效果为：
1.本发明通过在定子顶部设置集热片，同时以集热片和散热盘接触，在散热盘中间同轴设置轴承，使得轴承内圈与转轴键连接，通过集热片向散热盘传递定子上的热量，通过轴承向散热盘传递转子上的热量，以风扇与转轴同轴转动，加快散热盘周围空气流动，带走散热盘上的热量，从而达到电机快速散热的效果，减缓电机内部元件的老化，延长了电机的使用寿命。
2.本发明在筒状电机壳内嵌有若干集热板，使得集热板与定子上设的间隙卡合，从而进一步带走定子所产生的的热量，以集热板一侧设置的散热片散走热量，进一步保证了电机的散热性能。
附图说明
图1是本发明的***图；
图2是本发明的散热盘和轴承连接结构示意图；
图3是本发明的风扇结构示意图；
图4是本发明的内部元件连接结构示意图；
图5是本发明的外部结构示意图。
附图中：1、筒状电机壳；2、前端盖；3、后端盖；4、定子；5、转子；6、转轴；7集热片；8、散热盘；9、轴承；10、风扇；11、集热板；12、间隙；13、散热片；14、安装片。
具体实施方式
参阅图1至图5，一种自散热无刷电机，包括竖直设置的筒状电机壳1、前端盖2、后端盖3、定子4及转子5，筒状电机壳1一侧与前端盖2封闭连接，另一侧与后端盖3封闭连接，筒状电机壳1内侧贴设有定子4，定子4内侧贴设有转子5，转子5上设有转轴6，转轴6向转子5两侧延伸至转子5外侧，定子4顶部嵌有若干集热片7，集热片7接触连接有散热盘8，散热盘8中间同轴设置有轴承9，轴承9内圈与转轴6键连接，位于轴承9上方设置有与转轴6固定的风扇10。
本实施例中一种自散热无刷电机，筒状电机壳1上嵌有若干集热板11，定子4上开有若干间隙12，集热板11内侧与间隙12对应卡合，两个集热板11之间均匀设置有若干散热片13。
本实施例中一种自散热无刷电机，后端盖3为网状骨架结构。
本实施例中一种自散热无刷电机，风扇10中间与转轴6键连接，风扇10固定在转轴6顶部。
本实施例中一种自散热无刷电机，散热盘8边缘设有若干安装片14，安装 片14固定在定子4顶部。
本实施例中一种自散热无刷电机，集热板11采用炭纤维复合材料制成。
具体工作原理:通过在定子顶部设置集热片，以集热片和散热盘接触，在散热盘中间同轴设置轴承，使得轴承内圈与转轴键连接，通过集热片向散热盘传递定子上的热量，通过轴承向散热盘传递转子上的热量，以风扇与转轴同轴转动，加快散热盘周围空气流动，带走散热盘上的热量，从而达到电机内部快速散热的效果，在筒状电机壳内嵌有若干集热板，使得集热板与定子上设的间隙卡合，从而进一步带走定子所产生的的热量，以集热板一侧设置的散热片散走热量，进一步保证了电机的散热性能。
综上，仅为本发明的较佳实施例而已，并非用来限定本发明实施的范围，凡依本发明权利要求范围的形状、构造、特征及精神所为的均等变化与修饰，均应包括于本发明的权利要求范围内。

Claims (6)

  1. 一种自散热无刷电机，包括竖直设置的筒状电机壳(1)、前端盖(2)、后端盖(3)、定子(4)及转子(5)，筒状电机壳(1)一侧与前端盖(2)封闭连接，另一侧与后端盖(3)封闭连接，筒状电机壳(1)内侧贴设有定子(4)，定子(4)内侧贴设有转子(5)，转子(5)上设有转轴(6)，转轴(6)向转子(5)两侧延伸至转子(5)外侧，其特征在于：定子(4)顶部嵌有若干集热片(7)，集热片(7)接触连接有散热盘(8)，散热盘(8)中间同轴设置有轴承(9)，轴承(9)内圈与转轴(6)键连接，位于轴承(9)上方设置有与转轴(6)固定的风扇(10)。
  2. 根据权利要求1所述的一种自散热无刷电机，其特征在于：所述筒状电机壳(1)上嵌有若干集热板(11)，所述定子(4)上开有若干间隙(12)，集热板(11)内侧与间隙(12)对应卡合，两个集热板(11)之间均匀设置有若干散热片(13)。
  3. 根据权利要求1所述的一种自散热无刷电机，其特征在于：所述后端盖(3)为网状骨架结构。
  4. 根据权利要求1所述的一种自散热无刷电机，其特征在于：所述风扇(10)中间与转轴(6)键连接，风扇(10)固定在转轴(6)顶部。
  5. 根据权利要求1所述的一种自散热无刷电机，其特征在于：所述散热盘(8)边缘设有若干安装片(14)，安装片(14)固定在所述定子(4)顶部。
  6. 根据权利要求1所述的一种自散热无刷电机，其特征在于：所述集热板(11)采用炭纤维复合材料制成。
PCT/CN2019/120354 2019-03-18 2019-11-22 一种自散热无刷电机 WO2020186805A1 (zh)

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* Cited by examiner, † Cited by third party
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CN112803655A (zh) * 2020-12-30 2021-05-14 徐州南普机电科技有限公司 一种电机散热结构
CN112865391A (zh) * 2021-01-28 2021-05-28 海美格磁石技术(深圳)有限公司 一种节能磁动式循环的永磁电机及其使用方法
CN113309994A (zh) * 2021-07-07 2021-08-27 吴健浓 一种节能散热型led灯
CN114884261A (zh) * 2022-05-09 2022-08-09 南京玛格耐特智能科技有限公司 一种具有散热和降噪功能的永磁直驱电机

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* Cited by examiner, † Cited by third party
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CN109818457A (zh) * 2019-03-18 2019-05-28 扬州市华胜机电制造有限公司 一种自散热无刷电机
CN112193406A (zh) * 2020-10-10 2021-01-08 车欣 一种新型飞行器动力装置
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008167609A (ja) * 2006-12-28 2008-07-17 Mitsubishi Motors Corp 電動機
CN204168065U (zh) * 2014-10-10 2015-02-18 江阴市曾氏动力机械科技有限公司 一种高效散热发电机
CN107516974A (zh) * 2017-10-20 2017-12-26 南京泓凯动力***科技有限公司 一种具有良好散热功能的电机
CN207884372U (zh) * 2017-07-28 2018-09-18 广东威灵电机制造有限公司 定子组件及电机
CN207910584U (zh) * 2017-12-30 2018-09-25 无锡汉和航空技术有限公司 带自散热机构的内转子无刷电机
CN109818457A (zh) * 2019-03-18 2019-05-28 扬州市华胜机电制造有限公司 一种自散热无刷电机

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203135623U (zh) * 2013-03-20 2013-08-14 扬州市华胜机电制造有限公司 一种高效电机
CN103746471B (zh) * 2013-12-31 2017-10-17 华为技术有限公司 侧立磁场电机及应用其的散热风扇
CN207853630U (zh) * 2017-12-15 2018-09-11 浙江明磊新能源科技有限公司 一种易散热式有感无刷电机

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008167609A (ja) * 2006-12-28 2008-07-17 Mitsubishi Motors Corp 電動機
CN204168065U (zh) * 2014-10-10 2015-02-18 江阴市曾氏动力机械科技有限公司 一种高效散热发电机
CN207884372U (zh) * 2017-07-28 2018-09-18 广东威灵电机制造有限公司 定子组件及电机
CN107516974A (zh) * 2017-10-20 2017-12-26 南京泓凯动力***科技有限公司 一种具有良好散热功能的电机
CN207910584U (zh) * 2017-12-30 2018-09-25 无锡汉和航空技术有限公司 带自散热机构的内转子无刷电机
CN109818457A (zh) * 2019-03-18 2019-05-28 扬州市华胜机电制造有限公司 一种自散热无刷电机

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112803655A (zh) * 2020-12-30 2021-05-14 徐州南普机电科技有限公司 一种电机散热结构
CN112865391A (zh) * 2021-01-28 2021-05-28 海美格磁石技术(深圳)有限公司 一种节能磁动式循环的永磁电机及其使用方法
CN112865391B (zh) * 2021-01-28 2022-05-13 海美格磁石技术(深圳)有限公司 一种节能磁动式循环的永磁电机及其使用方法
CN113309994A (zh) * 2021-07-07 2021-08-27 吴健浓 一种节能散热型led灯
CN113309994B (zh) * 2021-07-07 2023-12-29 鑫元科技(深圳)有限公司 一种节能散热型led灯
CN114884261A (zh) * 2022-05-09 2022-08-09 南京玛格耐特智能科技有限公司 一种具有散热和降噪功能的永磁直驱电机
CN114884261B (zh) * 2022-05-09 2023-09-12 南京玛格耐特智能科技有限公司 一种具有散热和降噪功能的永磁直驱电机

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