WO2024032038A1 - 一种基于齿形热管散热的电机和一种电机散热方法 - Google Patents

一种基于齿形热管散热的电机和一种电机散热方法 Download PDF

Info

Publication number
WO2024032038A1
WO2024032038A1 PCT/CN2023/091398 CN2023091398W WO2024032038A1 WO 2024032038 A1 WO2024032038 A1 WO 2024032038A1 CN 2023091398 W CN2023091398 W CN 2023091398W WO 2024032038 A1 WO2024032038 A1 WO 2024032038A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat
winding
casing
heat dissipation
motor
Prior art date
Application number
PCT/CN2023/091398
Other languages
English (en)
French (fr)
Inventor
尹树彬
汤勇
张仕伟
黄梓滨
余小媚
Original Assignee
广东畅能投资控股有限公司
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 广东畅能投资控股有限公司 filed Critical 广东畅能投资控股有限公司
Publication of WO2024032038A1 publication Critical patent/WO2024032038A1/zh

Links

Classifications

    • 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
    • H02K9/225—Heat pipes
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/24—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors with channels or ducts for cooling medium between the conductors
    • 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

Definitions

  • the invention belongs to the technical field of motor heat dissipation, and specifically relates to a motor based on toothed heat pipe heat dissipation and a motor heat dissipation method.
  • Electric machines play an important role in various fields such as manufacturing and construction.
  • the size of the motor directly affects whether the related equipment can be lightweight and miniaturized, which poses a huge challenge to the ultimate power of the motor.
  • Heat dissipation is an important factor that restricts the ultimate power of the motor. Whether the motor heating problem can be effectively solved becomes the key to whether the motor can increase the ultimate power and achieve lightweight.
  • Air cooling and liquid cooling are mainstream motor cooling technologies.
  • the principle is that the motor copper wire windings transfer heat to the casing through the insulation layer and stator core, and then the heat is dissipated by air or liquid working fluid.
  • the motor includes a casing, a stator located in the casing, and a motor winding located in the stator.
  • the motor winding usually includes a central winding wrapped around the stator core, and an overhang extending outward from the central winding along the stator axis and exposed outside the core. There is a gap between the winding, the overhang winding and the casing. Among them, the overhang winding temperature has become an important indicator to measure whether the motor reaches the protection temperature.
  • the existing air-cooled and liquid-cooled motors can only dissipate heat from the center winding wrapped in the stator core, and the overhang winding exposed outside the core is not directly connected to the stator core or the casing, so the heat generated by the overhang winding The heat needs to be transferred to the center winding first, and then the center winding transfers the heat to the casing through the insulation layer and the stator core. Finally, the heat is dissipated by the air or liquid working medium.
  • the thermal resistance of this heat dissipation path is large, making it difficult to achieve effective heat dissipation of the overhang winding.
  • the heat of the overhang winding is transferred to the center winding, it increases the heat dissipation pressure of the center winding, which can easily have a negative impact on the normal working performance of the center winding. .
  • one of the purposes of the present invention is to provide a motor based on toothed heat pipe heat dissipation, which can significantly improve the heat dissipation efficiency of the overhang winding and help increase the power of the motor.
  • the second object of the present invention is to provide a motor heat dissipation method, through which the heat dissipation efficiency of the overhang winding can be significantly improved.
  • a motor based on toothed heat pipe heat dissipation including a casing and an overhanging winding.
  • a phase change heat transfer element is arranged between the casing and the overhanging winding; the phase change heat transfer element is ringed outside the overhanging winding, and the phase change heat transfer element is The outer and inner sides of the thermal element are respectively in contact with the casing and the overhanging winding.
  • phase change heat transfer element is an annular heat pipe.
  • the heat pipe is provided with a plurality of tooth shapes, the tooth tops of the tooth shapes are in contact with the casing, and the tooth roots of the tooth shapes are in contact with the overhanging windings.
  • the heat pipe is flat, the tooth top is adapted to fit the inner wall of the casing, and the tooth root is adapted to fit the outer wall of the overhanging winding.
  • heat-conducting medium is filled between the tooth root and the casing and between the tooth top and the overhanging winding.
  • thermal conductive medium is thermal conductive glue.
  • a plurality of heat pipes are provided, and the plurality of heat pipes are arranged axially on the overhanging winding in sequence.
  • adjacent heat pipes are arranged in a staggered manner.
  • a heat dissipation method for a motor A phase change heat transfer element is arranged between the casing and the overhang winding.
  • the phase change heat transfer element is looped outside the overhang winding.
  • the outside and inside of the phase change heat transfer element are respectively in contact with the machine.
  • the heat generated by the overhang winding is directly transferred to the casing through the phase change heat transfer element for rapid heat dissipation.
  • the phase change heat transfer element is a heat pipe provided with a plurality of tooth shapes.
  • the tooth tops of the tooth shapes are in contact with the casing, and the tooth roots of the tooth shapes are in contact with the overhang windings.
  • the heat-conducting medium is filled between the top and overhanging windings, so that the heat generated by the overhanging windings is transferred to the casing through the heat-conducting medium and the heat pipe.
  • the present invention has the following beneficial effects:
  • the heat generated when the overhang winding is working is directly and quickly transferred to the motor casing through the ultra-high thermal conductivity phase change heat transfer element.
  • the thermal resistance of the heat dissipation path is extremely small, which greatly improves the heat dissipation efficiency and significantly improves the heat dissipation of the overhang winding. ; Since the heat of the overhang winding is directly transferred to the motor casing through the phase change heat transfer element during heat dissipation, the heat dissipation pressure of the center winding will not be increased.
  • the heat of the center winding is transferred to the overhang winding and transferred to the chassis through the phase change heat transfer element for heat dissipation, thereby helping to reduce the temperature of the center winding and maintaining the normal operation of the center winding. performance, which is conducive to improving the rated power of the motor.
  • Figure 1 is a schematic structural diagram of a motor based on toothed heat pipe heat dissipation.
  • Figure 2 is a schematic structural diagram of a toothed heat pipe.
  • Figure 3 is a schematic plan view of the arrangement of multiple tooth-shaped heat pipes.
  • Figure 4 is a schematic three-dimensional structural diagram of the arrangement of multiple tooth-shaped heat pipes.
  • a motor based on toothed heat pipe heat dissipation includes a casing 1 and an overhang winding 4.
  • a phase change heat transfer element is provided between the casing 1 and the overhang winding 4; a phase change heat transfer element ring Covered outside the overhanging winding 4, the outer and inner sides of the phase change heat transfer element are respectively in contact with the casing 1 and the overhanging winding 4.
  • the heat generated by the operation of the overhang winding 4 needs to pass through a large thermal resistance heat dissipation path formed by the center winding, insulation layer, stator and casing 1. Not only is it difficult to achieve effective heat dissipation of the overhang winding 4, Moreover, when the heat of the overhang winding 4 is transferred to the center winding, the heat dissipation pressure of the center winding is increased, which may easily have a negative impact on the normal working performance of the center winding.
  • the heat generated by the overhang winding 4 during operation is directly and quickly transferred to the motor casing 1 through the ultra-high thermal conductivity phase change heat transfer element.
  • the thermal resistance of the heat dissipation path is extremely small, which greatly improves the heat dissipation efficiency and significantly improves the heat dissipation efficiency.
  • the heat dissipation of the overhang winding 4 is significantly improved; since the heat is directly transferred to the motor casing 1 through the phase change heat transfer element when the overhang winding 4 dissipates heat, without passing through the center winding first, it will not increase the heat dissipation pressure of the center winding.
  • the overhang winding 4 can quickly dissipate heat and cool down, the heat of the center winding can even be transferred to the overhang winding 4, and further transferred to the chassis 1 for heat dissipation through the phase change heat transfer element, thus helping to reduce the temperature of the center winding.
  • This can maintain the normal working performance of the center winding, reduce the overall temperature of the motor winding, help increase the rated power of the motor, and achieve lightweight and miniaturization of the motor.
  • the phase change heat transfer element is an annular heat pipe 2.
  • the heat pipe 2 transfers heat through the evaporation and condensation of liquid in a fully enclosed vacuum tube, and is a heat transfer element with extremely high thermal conductivity.
  • the heat generated by the operation of the overhanging winding 4 can be efficiently transferred to the casing 1 .
  • the heat pipe 2 is set to
  • the strip-shaped heat pipe 2 is provided with a plurality of tooth shapes, the tooth tops of the tooth shapes are in contact with the casing 1, and the tooth roots of the tooth shapes are in contact with the overhanging winding 4, so that the heat pipe 2 can be connected with the casing 1 It is in contact with the overhanging winding 4 at the same time, thereby achieving the purpose of heat transfer and heat dissipation.
  • the length of the heat pipe 2 is greatly extended, which can accommodate more liquid cooling fluid and improve the heat conduction effect.
  • the heat pipe 2 is pressed into a flat shape, and the top of the tooth is formed to conform to the inner wall of the casing 1.
  • the tooth root forms an arc shape that is adapted to fit the outer wall of the overhanging winding 4.
  • thermal conductive media are filled between the tooth root and the casing 1 and between the tooth top and the overhanging winding 4 respectively.
  • the areas of the tooth top and the tooth root are both small, so there is a contact area between the heat pipe 2 and the casing 1 and the overhang winding 4 Small and limited heat transfer area.
  • the filling of the thermal conductive medium effectively increases the heat transfer area, which well makes up for the problem of insufficient contact area between the heat pipe 2 and the chassis 1 and the heat pipe 2 and the overhang winding 4.
  • the heat generated by the operation of the overhang winding 4 can not only be directly transferred to the casing 1 through the heat pipe 2, but can also be first transferred to the heat pipe 2 through the heat conduction medium in contact with the overhang winding 4, and then transferred to the machine through the heat pipe 2.
  • Shell 1; or the heat transfer medium in contact with the overhang winding 4 is first transferred to the heat pipe 2, and then transferred from the heat pipe 2 to the heat transfer medium in contact with the casing 1, and finally the heat transfer medium in contact with the casing 1 is transferred to the casing 1 . Therefore, the heat-conducting medium not only greatly increases the heat transfer area, but also enriches the heat transfer path, greatly improving the heat dissipation efficiency.
  • the thermal conductive medium is thermal conductive glue 3 or thermal mud.
  • a motor heat dissipation method A phase change heat transfer element is arranged between the casing 1 and the overhang winding 4.
  • the phase change heat transfer element is looped around the overhang winding 4.
  • the outer and inner sides of the phase change heat transfer element are respectively in contact with each other. It is connected to the casing 1 and the overhang winding 4, so that the heat generated by the overhang winding 4 is directly transferred to the casing 1 through the phase change heat transfer element for rapid heat dissipation.
  • the heat generated by the overhang winding 4 during operation is directly and quickly transferred to the motor casing 1 through the ultra-high thermal conductivity phase change heat transfer element.
  • the thermal resistance of the heat dissipation path is extremely small, which greatly improves heat dissipation. efficiency, significantly improving the heat dissipation of the overhang winding 4; since the heat is directly transferred to the motor casing 1 through the phase change heat transfer element when the overhang winding 4 dissipates heat, without passing through the center winding first, it will not increase the heat dissipation of the center winding. pressure.
  • the overhang winding 4 can quickly dissipate heat and cool down, the heat of the center winding can even be transferred to the overhang winding 4, and further transferred to the chassis 1 through the phase change heat transfer element, thereby helping to reduce the temperature of the center winding, and thus can Maintaining the normal working performance of the center winding and reducing the overall temperature of the motor winding will help increase the rated power of the motor and achieve lightweight and miniaturization of the motor.
  • the phase change heat transfer element is a heat pipe 2 provided with a plurality of tooth shapes, and the tops of the tooth shapes are in contact with the casing. 1.
  • the tooth-shaped tooth root is in contact with the overhang winding 4.
  • the heat-conducting medium is filled between the tooth root and the casing 1 and between the tooth top and the overhang winding 4, so that the heat generated by the overhang winding 4 passes through the heat-conducting medium.
  • the heat pipe 2 is transferred to the casing 1.
  • the implementation process of the present invention is as follows:
  • the bent heat pipe 2 is as shown in Figure 2.
  • Heat pipe 2 can be customized and manufactured for motors of different sizes. If the length of the heat pipe 2 is insufficient, two or more bent heat pipes 2 can be spliced into an annular heat pipe 2 belt.
  • the heat pipes 2 should be placed first during assembly, and the thermal conductive glue 3 should be poured between the heat pipes 2, the casing 1 and the windings.
  • the height of the thermal conductive glue 3 should be less than or equal to the tooth height of the heat pipes 2.
  • the present invention can significantly improve the heat dissipation of the overhang winding 4, reduce the temperature of the motor winding, increase the rated power of the motor, and realize lightweight and miniaturization of the motor.
  • the parts involved do not require high precision and are easy to process.
  • the structure is simple and the assembly requirements are not high. Easy to operate, convenient and practical. It is implemented based on industrialized production of heat pipe 2 and has low cost.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Motor Or Generator Cooling System (AREA)

Abstract

本发明涉及一种基于齿形热管散热的电机，包括机壳和悬伸绕组，机壳和悬伸绕组之间设有相变传热元件；相变传热元件环套于悬伸绕组外，相变传热元件的外侧和内侧分别抵接于机壳和悬伸绕组。悬伸绕组工作时产生的热量通过超高导热率的相变传热元件直接快速传递到电机机壳，散热路径的热阻极小，大大提高了散热效率，显著改善了悬伸绕组的散热情况；由于悬伸绕组散热时热量通过相变传热元件直接传递到电机机壳，因此不会加重中心绕组的散热压力。中心绕组的热量传递到悬伸绕组，并通过相变传热元件传递到机壳散热，从而协助降低中心绕组的温度，进而能够维持中心绕组的正常工作性能，有利于提升电机额定使用功率。本发明还涉及一种电机散热方法。

Description

一种基于齿形热管散热的电机和一种电机散热方法 技术领域
本发明属于电机散热技术领域，具体涉及一种基于齿形热管散热的电机和一种电机散热方法。
背景技术
电机在制造、建筑等各个领域中都扮演重要角色。电机的体积直接影响相关设备能否实现轻量化与小型化，这对电机的极限功率提出了巨大挑战。散热是制约电机极限功率的重要因素，能否有效解决电机发热问题成为电机能否提升极限功率，实现轻量化的关键。
风冷和液冷是主流的电机散热技术，其原理是电机铜线绕组通过绝缘层和定子铁心等将热量传至机壳，再由空气或液态工质将热量耗散。
电机包括机壳、设于机壳内的定子和设于定子内的电机绕组，电机绕组通常包括定子铁心包裹部分的中心绕组，以及由中心绕组沿定子轴向外延而暴露在铁心外部的悬伸绕组，悬伸绕组与机壳之间留有间隙。其中，悬伸绕组温度已成为衡量电机是否达到保护温度的重要指标。
现有技术的电机风冷与液冷仅能实现定子铁心包裹的中心绕组热量耗散，而暴露在铁心外部的悬伸绕组由于并不直接与定子铁心或机壳连接，因此悬伸绕组产生的热量需要先传递至中心绕组，再由中心绕组经过绝缘层和定子铁心将热量传至机壳，最后由空气或液态工质将热量耗散。该散热路径的热阻较大，难以实现悬伸绕组的有效散热，而且悬伸绕组的热量传递至中心绕组时，加重了中心绕组的散热压力，容易对中心绕组的正常工作性能带来负面影响。
因此，人们急切需要研发一种散热效果更好的电机和电机散热方法。
发明内容
针对现有技术中存在的技术问题，本发明的目的之一是：提供一种基于齿形热管散热的电机，能够显著改善悬伸绕组的散热效率，有利于提升电机使用功率。
针对现有技术中存在的技术问题，本发明的目的之二是：提供一种电机散热方法，通过该方法能够显著改善悬伸绕组的散热效率。
本发明目的通过以下技术方案实现：
一种基于齿形热管散热的电机，包括机壳和悬伸绕组，机壳和悬伸绕组之间设有相变传热元件；相变传热元件环套于悬伸绕组外，相变传热元件的外侧和内侧分别抵接于机壳和悬伸绕组。
进一步，相变传热元件为环状的热管。
进一步，热管设有多个齿形，齿形的齿顶抵接于机壳，齿形的齿根抵接于悬伸绕组。
进一步，热管为扁平状，齿顶与机壳内壁相适应贴合，齿根与悬伸绕组外壁相适应贴合。
进一步，齿根与机壳之间以及齿顶与悬伸绕组之间分别填充有导热介质。
进一步，导热介质为导热胶。
进一步，热管设有多个，多个热管依次轴向排布于悬伸绕组上。
进一步，相邻的热管错位布置。
一种电机散热方法，在机壳和悬伸绕组之间设置相变传热元件，将相变传热元件环套于悬伸绕组外，相变传热元件的外侧和内侧分别抵接于机壳和悬伸绕组，使悬伸绕组产生的热量经过相变传热元件直接传递至机壳以快速散热。
进一步，相变传热元件为设有多个齿形的热管，齿形的齿顶抵接于机壳，齿形的齿根抵接于悬伸绕组，在齿根与机壳之间以及齿顶与悬伸绕组之间分别填充导热介质，使悬伸绕组产生的热量经过导热介质和热管传递至机壳。
与现有技术相比，本发明具有以下有益效果：
悬伸绕组工作时产生的热量通过超高导热率的相变传热元件直接快速传递到电机机壳，散热路径的热阻极小，大大提高了散热效率，显著改善了悬伸绕组的散热情况；由于悬伸绕组散热时热量通过相变传热元件直接传递到电机机壳，因此不会加重中心绕组的散热压力。在悬伸绕组快速散热降温的情况下，中心绕组的热量传递到悬伸绕组，并通过相变传热元件传递到机壳散热，从而协助降低中心绕组的温度，进而能够维持中心绕组的正常工作性能，有利于提升电机额定使用功率。
附图说明
图1为基于齿形热管散热的电机的结构示意图。
图2为齿形热管的结构示意图。
图3为多个齿形热管排布的平面结构示意图。
图4为多个齿形热管排布的立体结构示意图。
图中：
1-机壳，2-热管，3-导热胶，4-悬伸绕组。
具体实施方式
下面对本发明作进一步详细的描述。
如图1所示，一种基于齿形热管散热的电机，包括机壳1和悬伸绕组4，机壳1和悬伸绕组4之间设有相变传热元件；相变传热元件环套于悬伸绕组4外，相变传热元件的外侧和内侧分别抵接于机壳1和悬伸绕组4。
传统的电机散热过程中，悬伸绕组4工作产生的热量需要经过由中心绕组、绝缘层、定子和机壳1形成的较大热阻的散热路径，不仅难以实现悬伸绕组4的有效散热，而且悬伸绕组4的热量传递至中心绕组时，加重了中心绕组的散热压力，容易对中心绕组的正常工作性能带来负面影响。
本实施例中，悬伸绕组4工作时产生的热量通过超高导热率的相变传热元件直接快速传递到电机机壳1，散热路径的热阻极小，大大提高了散热效率，显 著改善了悬伸绕组4的散热情况；由于悬伸绕组4散热时热量通过相变传热元件直接传递到电机机壳1，而无需先经过中心绕组，因此不会加重中心绕组的散热压力。在悬伸绕组4得以快速散热降温的情形下，甚至能够使中心绕组的热量传递到悬伸绕组4，并进一步通过相变传热元件传递到机壳1散热，从而协助降低中心绕组的温度，进而能够维持中心绕组的正常工作性能，降低电机绕组整体温度，有利于提升电机额定使用功率，实现电机轻量化和微型化。
如图2所示，优选地，相变传热元件为环状的热管2。热管2通过在全封闭真空管内的液体的蒸发与凝结来传递热量，是一种具有极高导热性能的传热元件。当热管2的外侧和内侧分别抵接于机壳1和悬伸绕组4时，能够将悬伸绕组4工作产生的热量高效地传递至机壳1。
由于机壳1和悬伸绕组4之间的间隙较大，而热管2通常厚度较小，热管2难以与机壳1和悬伸绕组4同时接触，因此，本实施例中，热管2设为带状，在带状热管2上设有多个齿形，齿形的齿顶抵接于机壳1，齿形的齿根抵接于悬伸绕组4，从而使得热管2能够与机壳1和悬伸绕组4同时接触，进而实现传热散热的目的。同时，设置多个齿形后，热管2的长度得到较大的延长，能够容纳更多液冷工质，提高了导热效果。
为了增大热管2与机壳1以及热管2与悬伸绕组4的接触面积，提高散热效果，本实施例中，热管2压制为扁平状，并且使齿顶形成与机壳1内壁相适应贴合的弧形，齿根形成与悬伸绕组4外壁相适应贴合的弧形。
为了进一步增强散热效果，齿根与机壳1之间以及齿顶与悬伸绕组4之间分别填充有导热介质。
由于热管2通过齿顶与机壳1内壁接触，通过齿根与悬伸绕组4外壁接触，齿顶和齿根的面积都较小，因此存在热管2与机壳1、悬伸绕组4接触面积较小、传热面积有限的问题。导热介质的填充则有效增大了传热面积，很好地弥补了热管2与机壳1以及热管2与悬伸绕组4的接触面积不足的问题。另外，填充 导热介质后，悬伸绕组4工作产生的热量除了可以通过热管2直接传递至机壳1以外，还可以通过与悬伸绕组4接触的导热介质首先传递至热管2，再由热管2传递至机壳1；或者通过与悬伸绕组4接触的导热介质首先传递至热管2，再由热管2传递至与机壳1接触的导热介质，最后由与机壳1接触的导热介质传递至机壳1。因此，导热介质不仅大大增加了传热面积，而且丰富了传热路径，极大提升了散热效率。
优选地，导热介质为导热胶3或导热泥。
如图3、图4所示，由于热管2宽度通常较小，难以覆盖整个悬伸绕组4。因此，本实施例中，热管2设有多个，多个热管2依次轴向排布于悬伸绕组4上，从而增加与悬伸绕组4和机壳1的接触面积。
为了使悬伸绕组4的散热更均匀，维持悬伸绕组4的整体性能，排布于悬伸绕组4上的多个热管2中，相邻的热管2错位布置。
一种电机散热方法，在机壳1和悬伸绕组4之间设置相变传热元件，将相变传热元件环套于悬伸绕组4外，相变传热元件的外侧和内侧分别抵接于机壳1和悬伸绕组4，使悬伸绕组4产生的热量经过相变传热元件直接传递至机壳1以快速散热。
本实施例的电机散热方法中，悬伸绕组4工作时产生的热量通过超高导热率的相变传热元件直接快速传递到电机机壳1，散热路径的热阻极小，大大提高了散热效率，显著改善了悬伸绕组4的散热情况；由于悬伸绕组4散热时热量通过相变传热元件直接传递到电机机壳1，而无需先经过中心绕组，因此不会加重中心绕组的散热压力。在悬伸绕组4得以快速散热降温的情形下，甚至能够使中心绕组的热量传递到悬伸绕组4，并进一步通过相变传热元件传递到机壳1从而协助降低中心绕组的温度，进而能够维持中心绕组的正常工作性能，降低电机绕组整体温度，有利于提升电机额定使用功率，实现电机轻量化和微型化。
进一步地，相变传热元件为设有多个齿形的热管2，齿形的齿顶抵接于机壳 1，齿形的齿根抵接于悬伸绕组4，在齿根与机壳1之间以及齿顶与悬伸绕组4之间分别填充导热介质，使悬伸绕组4产生的热量经过导热介质和热管2传递至机壳1。通过在齿根与机壳1之间以及齿顶与悬伸绕组4之间分别填充导热介质，不仅大大增加了传热面积，而且丰富了传热路径，极大提升了散热效率。
本发明的实施过程如下：
1、采用模具将压扁后的热管2进行折弯处理，折弯后的热管2如图2所示。热管2可针对不同尺寸的电机进行定制化设计与制造。若热管2长度不足，可采用两根或多跟折弯后的热管2拼接成环形热管2带。
2、将热管2嵌入机壳1与悬伸绕组4之间，并在机壳1与悬伸绕组4之间的空隙中填入导热胶3。由于受宽度限制，单个热管2有时难以覆盖全部悬伸绕组4，因此，需要采用多个热管2拼接排布的方式，使悬伸绕组4完全被包裹。此外，为了使热管2更好地与绕组和机壳1接触，相邻的热管2间可错开一定角度。
3、当存在多个热管2时，在装配时应先放置热管2，并在热管2、机壳1和绕组间灌注导热胶3，导热胶3高度小于或等于热管2的齿形高度。导热胶3固化后嵌入下一条热管2，并再次灌注导热胶3。重复上述步骤，直至悬伸绕组4被完全包裹。
综上，本发明能够显著改善悬伸绕组4的散热情况，降低电机绕组温度，提升电机额定使用功率，实现电机轻量化和微型化。涉及零件对精度要求不高，易于加工。结构简单，对装配要求不高。操作简便，方便实用。以产业化生产热管2为基础实施，成本低廉。
上述实施例为本发明较佳的实施方式，但本发明的实施方式并不受上述实施例的限制，其他的任何未背离本发明的精神实质与原理下所作的改变、修饰、替代、组合、简化，均应为等效的置换方式，都包含在本发明的保护范围之内。

Claims (10)

  1. 一种基于齿形热管散热的电机，包括机壳和悬伸绕组，其特征在于：机壳和悬伸绕组之间设有相变传热元件；相变传热元件环套于悬伸绕组外，相变传热元件的外侧和内侧分别抵接于机壳和悬伸绕组。
  2. 按照权利要求1所述的一种基于齿形热管散热的电机，其特征在于：相变传热元件为环状的热管。
  3. 按照权利要求2所述的一种基于齿形热管散热的电机，其特征在于：热管设有多个齿形，齿形的齿顶抵接于机壳，齿形的齿根抵接于悬伸绕组。
  4. 按照权利要求3所述的一种基于齿形热管散热的电机，其特征在于：热管为扁平状，齿顶与机壳内壁相适应贴合，齿根与悬伸绕组外壁相适应贴合。
  5. 按照权利要求3所述的一种基于齿形热管散热的电机，其特征在于：齿根与机壳之间以及齿顶与悬伸绕组之间分别填充有导热介质。
  6. 按照权利要求5所述的一种基于齿形热管散热的电机，其特征在于：导热介质为导热胶。
  7. 按照权利要求3所述的一种基于齿形热管散热的电机，其特征在于：热管设有多个，多个热管依次轴向排布于悬伸绕组上。
  8. 按照权利要求7所述的一种基于齿形热管散热的电机，其特征在于：相邻的热管错位布置。
  9. 一种电机散热方法，其特征在于：在机壳和悬伸绕组之间设置相变传热元件，将相变传热元件环套于悬伸绕组外，相变传热元件的外侧和内侧分别抵接于机壳和悬伸绕组，使悬伸绕组产生的热量经过相变传热元件直接传递至机壳以快速散热。
  10. 按照权利要求9所述的一种电机散热方法，其特征在于：相变传热元件为设有多个齿形的热管，齿形的齿顶抵接于机壳，齿形的齿根抵接于悬伸绕组，在齿根与机壳之间以及齿顶与悬伸绕组之间分别填充导热介质，使悬伸绕组产 生的热量经过导热介质和热管传递至机壳。
PCT/CN2023/091398 2022-08-08 2023-04-27 一种基于齿形热管散热的电机和一种电机散热方法 WO2024032038A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202210942002.7A CN115378195A (zh) 2022-08-08 2022-08-08 一种基于齿形热管散热的电机和一种电机散热方法
CN202210942002.7 2022-08-08

Publications (1)

Publication Number Publication Date
WO2024032038A1 true WO2024032038A1 (zh) 2024-02-15

Family

ID=84063447

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2023/091398 WO2024032038A1 (zh) 2022-08-08 2023-04-27 一种基于齿形热管散热的电机和一种电机散热方法

Country Status (2)

Country Link
CN (1) CN115378195A (zh)
WO (1) WO2024032038A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115378195A (zh) * 2022-08-08 2022-11-22 广东畅能投资控股有限公司 一种基于齿形热管散热的电机和一种电机散热方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010154713A (ja) * 2008-12-26 2010-07-08 Sumitomo Electric Ind Ltd 電動機用ステータ及び電動機用分割ステータ
CN108155761A (zh) * 2018-01-31 2018-06-12 华南理工大学 一种强化热管理的车用电机定子组件应用的电机
CN207766072U (zh) * 2017-11-13 2018-08-24 中山大洋电机股份有限公司 一种相变散热电机定子组件及其应用的风冷电机
CN108964318A (zh) * 2018-07-04 2018-12-07 中国科学院电工研究所 一种电机定子绕组的复合灌封冷却结构
CN115378195A (zh) * 2022-08-08 2022-11-22 广东畅能投资控股有限公司 一种基于齿形热管散热的电机和一种电机散热方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010154713A (ja) * 2008-12-26 2010-07-08 Sumitomo Electric Ind Ltd 電動機用ステータ及び電動機用分割ステータ
CN207766072U (zh) * 2017-11-13 2018-08-24 中山大洋电机股份有限公司 一种相变散热电机定子组件及其应用的风冷电机
CN108155761A (zh) * 2018-01-31 2018-06-12 华南理工大学 一种强化热管理的车用电机定子组件应用的电机
CN108964318A (zh) * 2018-07-04 2018-12-07 中国科学院电工研究所 一种电机定子绕组的复合灌封冷却结构
CN115378195A (zh) * 2022-08-08 2022-11-22 广东畅能投资控股有限公司 一种基于齿形热管散热的电机和一种电机散热方法

Also Published As

Publication number Publication date
CN115378195A (zh) 2022-11-22

Similar Documents

Publication Publication Date Title
US10734867B2 (en) High thermal conductivity stator component for vehicle motor based on 3D phase change heat pipe technology
WO2024032038A1 (zh) 一种基于齿形热管散热的电机和一种电机散热方法
TWI401864B (zh) A motor with internal thermal glue
CN107710566B (zh) 旋转电机
CN108206316A (zh) 一种热管和相变材料耦合的电池模组热管理装置
CN105305667A (zh) 电机
JP2013135611A (ja) 封入されたエンドターンを有する電気機械
CN203537176U (zh) 一种高性能紧凑型盘式电机水冷系统
CN103618394A (zh) 一种采用热管绕组的盘式电机定子
US20140139058A1 (en) Stator structure
CN217935372U (zh) 一种基于齿形热管散热的电机
WO2024113661A1 (zh) 一种基于形变热管的电机散热结构及其制造方法
JP4026496B2 (ja) 回転電機の冷却構造
JP5560773B2 (ja) ステータ
WO2024066319A1 (zh) 一种基于i型均热板的散热结构及平板直线电机
WO2024087554A1 (zh) 一种基于弧形折弯相变热管的圆线电机散热结构
CN115833486B (zh) 一种基于热管冷却的槽内直冷发电机
KR20110115847A (ko) 열배출수단을 이용한 콤팩트 변압기
WO2024082601A1 (zh) 一种复合式相变热控器件及基于其的磁轴直线电机
JPH07307423A (ja) 電力半導体素子の冷却ブロック
TWM531092U (zh) 高效率馬達外殼結構
CN218301156U (zh) 一种高效散热的磁轴式直线电机
CN114639525B (zh) 一种内嵌式电阻器
CN114724822B (zh) 绕组组件、干式变压器以及绕组组件的制造方法
CN221263519U (zh) 一种驱动装置散热结构

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23851268

Country of ref document: EP

Kind code of ref document: A1