WO2024087562A1 - 一种电机用复合一体式相变齿形带散热结构 - Google Patents

一种电机用复合一体式相变齿形带散热结构 Download PDF

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Publication number
WO2024087562A1
WO2024087562A1 PCT/CN2023/091402 CN2023091402W WO2024087562A1 WO 2024087562 A1 WO2024087562 A1 WO 2024087562A1 CN 2023091402 W CN2023091402 W CN 2023091402W WO 2024087562 A1 WO2024087562 A1 WO 2024087562A1
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Prior art keywords
toothed belt
toothed
heat dissipation
tooth
winding
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PCT/CN2023/091402
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English (en)
French (fr)
Inventor
尹树彬
赵威
汤勇
张仕伟
黄梓滨
余小媚
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广东畅能投资控股有限公司
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Publication of WO2024087562A1 publication Critical patent/WO2024087562A1/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
    • H02K5/18—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
    • H02K9/22—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

Definitions

  • the utility model belongs to the technical field of motor heat dissipation, and in particular relates to a composite integrated phase-change toothed belt heat dissipation structure for a motor.
  • Phase change heat transfer technology represented by heat pipes has played an irreplaceable role in thermal control issues in various fields such as electronic chips and IGBTs.
  • phase change ultra-thin heat spreaders and ultra-thin flat heat pipes have gradually begun to replace traditional heat pipe cooling modes, achieving the maximum heat removal with the smallest weight and volume increase ratio.
  • the motor's overhang winding is evenly divided into multiple parts in the circumferential direction.
  • An annular toothed belt formed by bending an ultra-thin phase change device is set between the overhang winding and the motor housing.
  • the toothed belt includes multiple tooth roots and tooth tops that are staggered in sequence. Each tooth root of the toothed belt contacts a part of the overhang winding, and each tooth top of the toothed belt contacts the motor housing.
  • the heat of the overhang winding is first transferred to the tooth root of the toothed belt, and then transferred to the motor housing by the tooth top of the toothed belt.
  • This heat dissipation method can greatly reduce the heat concentration of the stator, and reduce the local temperature of the stator by more than 30°C.
  • the overhang winding between two adjacent tooth roots does not contact the toothed belt in its entire axial area, resulting in The generated heat is difficult to transfer away, resulting in uneven heat dissipation of the overhanging winding as a whole, which is not conducive to improving motor performance.
  • the purpose of the utility model is to provide a composite integrated phase change toothed belt heat dissipation structure for a motor, which can evenly dissipate the heat of the motor overhang winding as a whole, thereby improving the performance of the motor.
  • a composite integrated phase-change toothed belt heat dissipation structure for a motor includes a cantilever winding and a motor housing. At least two toothed belts are provided between the cantilever winding and the motor housing. The at least two toothed belts are arranged in sequence along the axial direction of the cantilever winding. Each toothed belt includes a tooth root and a tooth top. The tooth root of any toothed belt is arranged corresponding to the tooth top of an adjacent toothed belt.
  • it also includes a connecting section, which is arranged between adjacent tooth tops of the toothed belt, and at least two toothed belts are respectively connected to the connecting section.
  • the height of the connecting section is located between the tooth root and the tooth tip.
  • tooth roots of any toothed belt correspond to the tooth tops of an adjacent toothed belt in a staggered manner.
  • At least two toothed belts are formed into a multi-layer integral structure by molding.
  • At least two toothed belts are formed into an integrated structure by welding side edges.
  • Each circumferential portion of the overhang winding is divided into at least two regions along the axial direction, and at least one of the at least two regions is in contact with the tooth root of the toothed belt, thereby avoiding the situation where the entire axial portion of the overhang winding between two adjacent tooth roots does not contact the toothed belt.
  • each circumferential portion of the overhang winding can contact the toothed belt for heat transfer, making the overall heat dissipation of the overhang winding more uniform, which is beneficial to improving the motor performance.
  • FIG1 is a schematic diagram of the structure of the phase-change toothed belt heat dissipation structure of the utility model applied to a motor.
  • FIG. 2 is an enlarged schematic diagram of point K in FIG. 1 .
  • a composite integrated phase change toothed belt heat dissipation structure for a motor includes a cantilever winding and a motor housing 1, at least two toothed belts are provided between the cantilever winding and the motor housing 1, at least two toothed belts are arranged in sequence along the axial direction of the cantilever winding, each toothed belt includes a tooth root and a tooth top, and the tooth root of any toothed belt is arranged corresponding to the tooth top of the adjacent toothed belt.
  • each circumferential portion of the suspension winding is divided into at least two areas along the axial direction, at least one of the at least two areas is in contact with the tooth root of the toothed belt, thereby avoiding that the entire axial portion of the suspension winding between two adjacent tooth roots does not contact the toothed belt.
  • each circumferential portion of the suspension winding can contact the toothed belt for heat transfer, and the overall heat dissipation of the suspension winding is more uniform, which is conducive to improving the performance of the motor.
  • This embodiment is mainly for water-cooled motors, and mainly includes a motor housing 1, a phase change toothed belt 2, and a motor suspension winding 3.
  • the ultra-thin phase change device is molded into a three-layer toothed belt along the axial direction of the suspension winding, wherein the tooth tops and tooth roots of the first layer 2-1 and the third layer 2-3 are consistent, that is, they are directly corresponding, the tooth top position of the second layer 2-2 is consistent with the tooth root position of the first layer 2-1, and the tooth root of the second layer 2-2 is consistent with the tooth top position of the first layer 2-1. That is, the tooth tops and tooth roots of the second layer 2-2 correspond to those of the first layer 2-1 and the third layer 2-3, so as to ensure that the tooth tops and tooth roots of the three-layer toothed belt are staggered.
  • a connecting section 2-4 is provided between adjacent tooth tops of the toothed belt, and the height of the connecting section 2-4 is located between the tooth root and the tooth top.
  • the three toothed belts are respectively connected to the connecting section 2-4, so that the three-layer toothed belt forms an integrated molded structure.
  • the whole toothed belt is rolled into a ring shape, and the tooth top of the toothed belt is closely fitted with the water-cooled housing 1, and the tooth root is closely fitted with the electrode stator overhang winding.
  • the number of molded layers of the composite integrated toothed belt can be adjusted according to actual heat dissipation requirements.
  • the number of molded layers is greater, that is, the number of toothed belts is greater, the overall heat dissipation of the overhang winding is more uniform.
  • the toothed belt layers can change the positive and negative correspondence between the tooth tops and tooth roots, or form an angularly staggered correspondence, according to actual heat dissipation requirements.
  • each connecting section 2-4 of the toothed belt can be an integral connection between some toothed belt layers, but it should be ensured that there is at least one integral connecting section 2-4 between every two toothed belt layers to form an integral one.
  • the composite integrated toothed belt is formed into a multi-layer integral structure by molding, or a plurality of single-layer toothed belts are formed into an integrated toothed belt by welding the side edges.
  • the circular diameter formed at the bottom end of the tooth root should be consistent with the outer diameter of the overhanging winding, and the circular diameter formed at the top end of the tooth top should be consistent with the inner diameter of the water-cooling housing 1.
  • phase-change toothed belt By using a phase-change toothed belt, phase-change heat transfer is achieved between the stator overhang winding of the water-cooled motor and the water-cooled housing 1, which greatly reduces the heat concentration of the stator overhang winding and improves the overall performance of the stator and the motor.
  • the composite staggered toothed belt can wrap a larger area of the toothed belt on the outside of the overhang winding, so that the heat is evenly dissipated at all positions of the overhang winding, and the heat dissipation efficiency of the winding is comprehensively improved.
  • the composite integrated toothed belt can achieve more convenient installation and stability during use in actual applications, and the heat dissipation consistency can be better guaranteed.

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

Abstract

本实用新型涉及一种电机用复合一体式相变齿形带散热结构，包括悬伸绕组与电机外壳，悬伸绕组与电机外壳之间设有至少两个齿形带，至少两个齿形带沿悬伸绕组轴向依次设置，每个齿形带均包括齿根和齿顶，任一齿形带的齿根与相邻齿形带的齿顶对应布置。悬伸绕组周向的每一份均沿轴向分为至少两个区域，所述至少两个区域中，至少有一份区域与齿形带的齿根接触，从而避免了相邻两个齿根之间的悬伸绕组中轴向的整份区域均不与齿形带接触。通过将悬伸绕组从轴向上细化为更多小区域，并在小区域上增加悬伸绕组与齿形带的接触，使得悬伸绕组周向的每一份均能够与齿形带接触传热，悬伸绕组整体散热更加均匀，有利于提升电机性能，延长电机的使用寿命。

Description

一种电机用复合一体式相变齿形带散热结构 技术领域
本实用新型属于电机散热技术领域，具体涉及一种电机用复合一体式相变齿形带散热结构。
背景技术
伴随着新能源汽车走进千家万户，电机行业也被推向了时代的风口浪尖，高速运转的转子和高电流的定子，在急速的车况之下，也时刻面临着高温的考验，过载电流和过热的机腔时刻影响着汽车运行的整体性能，如何在高速非转的电机之中实现温度的可控，也成为了电动汽车或是更多电机应用领域的重要发展需求。
以热管为代表的相变传热技术已经在电子芯片、IGBT等各领域的热控问题上发挥着无可替代的作用，而随着相变器件的多元化，以相变超薄均热板，超薄平板热管也逐渐开始替代传统的热管散热模式，实现以最小的重量和体积增比带走最大的热量。
将超薄均热板应用在电机领域也早已初见成效，比如针对水冷外壳式电机，将电机的悬伸绕组周向平均分为多份，在悬伸绕组与电机外壳之间设置由超薄相变器件弯折而成的环状齿形带，齿形带包括多个依次交错拼接的齿根和齿顶，齿形带的每个齿根分别与一份悬伸绕组接触，齿形带的每个齿顶分别与电机外壳接触。工作时，悬伸绕组热量首先传递到齿形带的齿根，然后由齿形带的齿顶传递到电机外壳，采用这种散热方式能大幅度降低定子的热集中，使定子局部温度下降30℃以上。
然而，其仍然存在以下技术问题：
相邻两个齿根之间的悬伸绕组，其轴向的整份区域均不与齿形带接触，产 生的热量较难传递出去，导致悬伸绕组整体散热不够均匀，不利于提升电机性能。
实用新型内容
针对现有技术中存在的技术问题，本实用新型的目的是：提供一种电机用复合一体式相变齿形带散热结构，电机悬伸绕组整体散热均匀，有利于提升电机性能。
本实用新型目的通过以下技术方案实现：
一种电机用复合一体式相变齿形带散热结构，包括悬伸绕组与电机外壳，悬伸绕组与电机外壳之间设有至少两个齿形带，至少两个齿形带沿悬伸绕组轴向依次设置，每个齿形带均包括齿根和齿顶，任一齿形带的齿根与相邻齿形带的齿顶对应布置。
进一步，还包括连接段，连接段设于齿形带的相邻齿顶之间，至少两个齿形带分别连接于连接段。
进一步，连接段的高度位于齿根和齿顶之间。
进一步，任一齿形带的齿根与相邻齿形带的齿顶之间错开对应。
进一步，至少两个齿形带通过模压的方式形成多层整体结构。
进一步，至少两个齿形带通过对侧边焊接的方式形成一体式结构。
进一步，一体式结构的内部相互连通。
与现有技术相比，本实用新型具有以下有益效果：
悬伸绕组周向的每一份均沿轴向分为至少两个区域，所述至少两个区域中，至少有一份区域与齿形带的齿根接触，从而避免了相邻两个齿根之间的悬伸绕组中轴向的整份区域均不与齿形带接触。通过将悬伸绕组从轴向上细化为更多小区域，并在小区域上增加悬伸绕组与齿形带的接触，使得悬伸绕组周向的每一份均能够与齿形带接触传热，悬伸绕组整体散热更加均匀，有利于提升电机 性能。
附图说明
图1为本实用新型相变齿形带散热结构应用于电机的结构示意图。
图2为图1中K处放大示意图。
图中：
1、外壳；
2、齿形带；2-1、第一层；2-2、第二层；2-3、第三层；2-4、连接段；
3、悬伸绕组。
具体实施方式
下面对本实用新型作进一步详细的描述。
如图1、图2所示，一种电机用复合一体式相变齿形带散热结构，包括悬伸绕组与电机外壳1，悬伸绕组与电机外壳1之间设有至少两个齿形带，至少两个齿形带沿悬伸绕组轴向依次设置，每个齿形带均包括齿根和齿顶，任一齿形带的齿根与相邻齿形带的齿顶对应布置。
采用这种结构后，由于悬伸绕组周向的每一份均沿轴向分为至少两个区域，所述至少两个区域中，至少有一份区域与齿形带的齿根接触，从而避免了相邻两个齿根之间的悬伸绕组中轴向的整份区域均不与齿形带接触。通过将悬伸绕组从轴向上细化为更多小区域，并在小区域上增加悬伸绕组与齿形带的接触，使得悬伸绕组周向的每一份均能够与齿形带接触传热，悬伸绕组整体散热更加均匀，有利于提升电机性能。
下面以齿形带数量为3个为例进行说明。
本实施例主要针对水冷式电机，主要包括电机外壳1、相变齿形带2、电机悬伸绕组3。将超薄相变器件沿着悬伸绕组轴向模压成三层齿形带，其中第一层2-1与第三层2-3的齿顶与齿根均保持一致，即正对应，第二层2-2的齿顶位置与第一层2-1的齿根位置一致，第二层2-2的齿根与第一层2-1的齿顶位置一致， 即第二层2-2与第一层2-1、第三层2-3之间齿顶齿根反对应，保证三层齿形带的齿顶与齿根间隔错开。
齿形带的相邻齿顶之间设有一段连接段2-4，连接段2-4的高度位于齿根和齿顶之间。3个齿形带分别连接于连接段2-4，从而使三层齿形带形成一体式模压结构。
随后将整体齿形带卷成环状，并将齿形带的齿顶与水冷外壳1紧密贴合，齿根与电极定子悬伸绕组紧密贴合。
优选的，复合一体式齿形带的模压层数可以根据实际散热需求进行调节。当模压层数更多，即齿形带数量更多时，悬伸绕组整体散热更加均匀。
优选的，齿形带各层之间可根据实际散热需求，改变齿顶与齿根的正反对应关系，或是形成角度错开对应。
优选的，齿形带的每一个连接段2-4可以是部分齿形带层之间的一体连接，但应保证每两层齿形带之间至少有一个一体连接段2-4，形成整体一体式。
优选的，复合一体式齿形带通过模压的方式形成多层整体结构，也可以是多个单层齿形带通过对侧边焊接的方式形成一体式齿形带。
优选的，复合一体式齿形带在卷圆时，应保证齿根底端形成的圆径与悬伸绕组外径一致，齿顶上端形成的圆径与水冷外壳1内径一致。
本实用新型相对于现有技术，其优势如下：
利用相变齿形带，将水冷电机的定子悬伸绕组与水冷外壳1之间实现相变传热，大幅度降低定子悬伸绕组的热集中，提高定子及电机整体性能。
复合错位式齿形带，相较于单个齿形带，可以使齿形带在悬伸绕组外侧实现更大面积裹覆，使悬伸绕组各个位置均匀散热，全面提高绕组散热效率。
复合一体式齿形带，相较于复合分离式齿形带，在实际应用中可以实现更加便捷的安装，以及使用过程中的稳定性，散热一致性可以得到更好的保障。
上述实施例为本实用新型较佳的实施方式，但本实用新型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实用新型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，都包含在本实用新型的保护范围之内。

Claims (7)

  1. 一种电机用复合一体式相变齿形带散热结构，包括悬伸绕组与电机外壳，其特征在于：悬伸绕组与电机外壳之间设有至少两个齿形带，至少两个齿形带沿悬伸绕组轴向依次设置，每个齿形带均包括齿根和齿顶，任一齿形带的齿根与相邻齿形带的齿顶对应布置。
  2. 按照权利要求1所述的一种电机用复合一体式相变齿形带散热结构，其特征在于：还包括连接段，连接段设于齿形带的相邻齿顶之间，至少两个齿形带分别连接于连接段。
  3. 按照权利要求2所述的一种电机用复合一体式相变齿形带散热结构，其特征在于：连接段的高度位于齿根和齿顶之间。
  4. 按照权利要求1所述的一种电机用复合一体式相变齿形带散热结构，其特征在于：任一齿形带的齿根与相邻齿形带的齿顶之间错开对应。
  5. 按照权利要求1所述的一种电机用复合一体式相变齿形带散热结构，其特征在于：至少两个齿形带通过模压的方式形成多层整体结构。
  6. 按照权利要求1所述的一种电机用复合一体式相变齿形带散热结构，其特征在于：至少两个齿形带通过对侧边焊接的方式形成一体式结构。
  7. 按照权利要求6所述的一种电机用复合一体式相变齿形带散热结构，其特征在于：一体式结构的内部相互连通。
PCT/CN2023/091402 2022-10-27 2023-04-27 一种电机用复合一体式相变齿形带散热结构 WO2024087562A1 (zh)

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Publication number Priority date Publication date Assignee Title
CN218771642U (zh) * 2022-10-27 2023-03-28 广东畅能投资控股有限公司 一种电机用复合一体式相变齿形带散热结构

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
FR2978631A1 (fr) * 2011-07-29 2013-02-01 Renault Sa Element de machine electrique comprenant une carcasse et un bobinage
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
CN218771642U (zh) * 2022-10-27 2023-03-28 广东畅能投资控股有限公司 一种电机用复合一体式相变齿形带散热结构

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
FR2978631A1 (fr) * 2011-07-29 2013-02-01 Renault Sa Element de machine electrique comprenant une carcasse et un bobinage
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
CN218771642U (zh) * 2022-10-27 2023-03-28 广东畅能投资控股有限公司 一种电机用复合一体式相变齿形带散热结构

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