WO2024087554A1 - Round-wire motor heat dissipation structure based on arc-shaped bent phase change heat pipes - Google Patents
Round-wire motor heat dissipation structure based on arc-shaped bent phase change heat pipes Download PDFInfo
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- WO2024087554A1 WO2024087554A1 PCT/CN2023/090423 CN2023090423W WO2024087554A1 WO 2024087554 A1 WO2024087554 A1 WO 2024087554A1 CN 2023090423 W CN2023090423 W CN 2023090423W WO 2024087554 A1 WO2024087554 A1 WO 2024087554A1
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- change heat
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 45
- 238000004804 winding Methods 0.000 claims abstract description 55
- 239000000725 suspension Substances 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 12
- 238000005452 bending Methods 0.000 claims description 9
- 239000010410 layer Substances 0.000 claims description 5
- 239000002356 single layer Substances 0.000 claims description 2
- 239000000306 component Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 101000827703 Homo sapiens Polyphosphoinositide phosphatase Proteins 0.000 description 3
- 102100023591 Polyphosphoinositide phosphatase Human genes 0.000 description 3
- 101100233916 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) KAR5 gene Proteins 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 101001121408 Homo sapiens L-amino-acid oxidase Proteins 0.000 description 1
- 102100026388 L-amino-acid oxidase Human genes 0.000 description 1
- 101100012902 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) FIG2 gene Proteins 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
- H02K9/225—Heat pipes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Definitions
- the invention relates to a motor heat dissipation structure, in particular to a round wire motor heat dissipation structure based on an arc-shaped bent phase-change heat pipe.
- the electric drive system As the core component of new energy vehicles, the electric drive system has an important impact on the vehicle's power, economy, comfort, safety and life.
- the motor In the electric drive system, the motor is the core, and the performance of the motor largely determines the performance of the whole vehicle. Heat dissipation is an important factor that restricts the improvement of motor performance. Whether the problem of motor heating can be effectively solved becomes the key to further improve the motor's limit power.
- new energy vehicle motors can be divided into round wire motors and flat wire motors according to the shape of the winding. Under the same air cooling or liquid cooling conditions, the flat wire motor has a more compact interior and fewer gaps, making its heat dissipation and heat conduction better than the round wire motor, but its design is more difficult and the manufacturing cost is higher.
- the present invention proposes a round wire motor heat dissipation structure based on an arc-shaped bent phase change heat pipe, which can significantly improve the heat dissipation efficiency of the coil winding, increase the motor's maximum power, and extend the motor's service life.
- a round wire motor heat dissipation structure based on an arc-shaped bent phase-change heat pipe comprises a housing, a phase-change heat pipe and a suspension winding, wherein the suspension winding is arranged in the middle of the housing.
- a heat dissipation component is provided between the group and the inner wall of the casing; the heat dissipation component includes a plurality of arc-shaped phase-change heat pipes.
- a diameter of the phase-change heat pipe is less than or equal to a distance between an inner wall of the casing and the cantilever winding.
- the bending direction of the phase-change heat pipe is toward the suspension winding, so that a plurality of phase-change heat pipes are arranged around the suspension winding.
- the bending direction of the phase change heat pipe is the same as the radial direction of the cantilever winding.
- thermal conductive interface materials are filled between the phase change heat pipes.
- phase-change heat pipe is arranged between the overhanging winding and the inner wall of the casing in a single-layer embedded or multi-layer stacked manner.
- the thickness of the thermal interface material is less than or equal to the diameter of the phase change heat pipe.
- the heat dissipation component is arranged to cover the outer surface of the overhanging winding.
- the curvature angle of the bent phase-change heat pipe is greater than the diameter of the phase-change heat pipe.
- the present invention has the following advantages:
- the present invention fills several bent phase-change heat pipes as heat dissipation components between the casing and the overhanging winding, so that an additional heat dissipation channel is formed between the overhanging winding and the contacting phase-change heat pipes. Heat is transferred to the casing through the heat dissipation component and dissipated into the air. Since the structure adds the heat dissipation component composed of the bent phase-change heat pipes, the interior of the round wire motor is more compact and the problem of poor thermal conductivity caused by air is avoided.
- FIG1 is a schematic diagram of the structure of a phase change heat pipe in the present invention.
- FIG2 is a schematic diagram of a first embodiment of the present invention.
- FIG3 is a schematic diagram of a second embodiment of the present invention.
- FIG4 is a schematic diagram of a third embodiment of the present invention.
- FIG5 is a partial enlarged schematic diagram of point A in FIG3 ;
- FIG6 is a partial enlarged schematic diagram of point B in FIG4 ;
- the terms “installed”, “connected” and “connected” should be understood in a broad sense, for example, it can be a fixed connection or It can be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a communication between the two components.
- installed should be understood in a broad sense, for example, it can be a fixed connection or It can be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a communication between the two components.
- the embodiment of the present invention discloses a heat dissipation structure of a round wire motor based on an arc-shaped bent phase-change heat pipe 2, comprising a housing 1, a phase-change heat pipe 2 and a cantilever winding 3, characterized in that: the cantilever winding 3 is arranged in the middle of the housing 1, and a heat dissipation component is arranged between the cantilever winding 3 and the inner wall of the housing 1; the heat dissipation component comprises a plurality of arc-shaped phase-change heat pipes 2.
- the phase-change heat pipe 2 is bent by a mold, wherein R1 is the outer diameter of the cantilever winding 3, and R2 is the inner diameter of the housing 1, and its shape can be customized for motors of different sizes. Since the air gap inside the round wire motor is reduced, the heat is prevented from being difficult to dissipate due to the poor thermal conductivity of the air, and at the same time, the bent phase-change heat pipe 2 that fits the cantilever winding 3 is added, and the heat is further transferred to the outside of the housing 1, thereby increasing the heat dissipation efficiency of the coil winding in the round wire motor, thereby improving the motor limit power, and there is no need to worry about the motor burning due to excessive temperature, thereby extending the working life of the motor.
- the diameter of the phase-change heat pipe 2 is less than or equal to the distance between the inner wall of the casing 1 and the suspension winding 3.
- the diameter of the phase-change heat pipe 2 is less than the distance between the inner wall of the casing 1 and the suspension winding 3
- a method of stacking multiple phase-change heat pipes 2 is adopted, and it is ensured that the stacked phase-change heat pipes 2 can fill the space between the casing 1 and the suspension winding 3; when the diameter of the phase-change heat pipe 2 is equal to the distance between the inner wall of the casing 1 and the suspension winding 3, only one phase-change heat pipe 2 needs to be arranged between the casing 1 and the suspension winding 3 to completely fill the space.
- the insulated phase change heat pipe 23 is embedded between the housing 11 and the overhanging winding 32, and the gap is filled with a thermal interface material.
- the bending angle and length of the phase change heat pipe 2 can be adjusted according to the overhanging winding 32.
- the size of the winding 3 is customized and arranged, and its installation standard should cover the entire overhang winding 3.
- three phase-change heat pipes 2 with a bending angle of 120° are used, so two phase-change heat pipes 2 with a bending angle of 180°, or four phase-change heat pipes 2 with a bending angle of 90° can also achieve the same protection effect.
- the motor housing can be customized and manufactured for motors of different sizes.
- the thermal interface material is selected from thermal conductive glue, and thermal conductive mud and other materials that also have thermal conductive effects can also be used for filling. Since the heat dissipation structure needs to cover the outer surface of the overhang winding 3, the phase-change heat pipes 2 in this embodiment are arranged in parallel on the outside of the overhang winding 3 to ensure that the heat dissipation structure can fully fit the overhang winding 3 to achieve better heat dissipation.
- the difference between this embodiment and the first embodiment is that when the distance between the inner wall of the casing 1 and the overhanging winding 3 is too large and exceeds the maximum manufacturing diameter of the phase-change heat pipe 2, a multi-layer stacking method is required to ensure the integrity of the additional heat dissipation channel between the overhanging winding 3 and the inner wall of the casing 1.
- the assembly sequence should be phase-change heat pipe 2-thermal interface material-phase-change heat pipe 2, that is, each time a phase-change heat pipe 2 is placed, a layer of thermal interface material must be poured, and after the thermal interface material is solidified, the next heat pipe is embedded, and the thermal interface material is poured again.
- the thickness of each layer of thermal interface material is less than or equal to the diameter of the phase-change heat pipe 2, and the above steps are repeated until the gap between the winding and the inner wall of the casing 1 is completely filled.
- the difference between this embodiment and the second embodiment is that the bending direction of the phase change heat pipe 2 is the same as the radial direction of the suspension winding 3. Under this structure, the arc angle of the bent phase change heat pipe 2 is greater than the diameter of the phase change heat pipe 2.
- phase change heat pipes 2 whose diameter is smaller than the distance between the casing 1 and the suspension winding 3 are stacked and filled in the gap. When the diameter of the phase change heat pipe 2 is equal to the distance between the casing 1 and the suspension winding 3, a single phase change heat pipe 2 can also be embedded to fill the gap.
- the phase change heat pipes 2 in this embodiment are staggered and arranged in a fish scale shape. Distributed outside the overhanging winding 3, and the gaps are filled with thermally conductive interface materials.
- the heat dissipation structure under this arrangement is more stable, and is more closely fitted to the overhanging winding 3, resulting in a better heat dissipation effect.
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- Engineering & Computer Science (AREA)
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- Motor Or Generator Cooling System (AREA)
Abstract
A round-wire motor heat dissipation structure based on arc-shaped bent phase change heat pipes, comprising a casing (1), phase change heat pipes (2) and overhanging windings (3), the overhanging windings (3) being arranged in the middle part of the casing (1), a heat dissipation component being arranged between the overhanging windings (3) and the inner wall of the casing (1), and the heat dissipation component comprising a plurality of the arc-shaped phase change heat pipes (2). The plurality of bent phase change heat pipes (2) are used as the heat dissipation component to fill a space between the casing (1) and the overhanging windings (3), so as to form additional heat dissipation passages between the overhanging windings (3) and the phase change heat pipes (2) which are in contact with the overhanging windings, thereby transferring heat to the casing (1) by means of the heat dissipation component and dissipating same into air. Since the heat dissipation component consisting of the bent phase change heat pipes (2) is additionally provided in the structure, the interior of a round-wire motor is more compact, thus avoiding the problem of poor heat conduction performance caused by air.
Description
本发明涉及一种电机散热结构，具体涉及一种基于弧形折弯相变热管的圆线电机散热结构。The invention relates to a motor heat dissipation structure, in particular to a round wire motor heat dissipation structure based on an arc-shaped bent phase-change heat pipe.
电驱动系统作为新能源汽车的核心部件，对于汽车的动力、经济性、舒适性、安全性以及汽车寿命都有着重要的影响。As the core component of new energy vehicles, the electric drive system has an important impact on the vehicle's power, economy, comfort, safety and life.
电驱动系统中，又以电机作为核心中，电机的性能很大程度上决定了整车的性能。而散热是制约电机性能提升的重要因素，能否有效解决电机发热问题成为电机进一步提升极限功率的关键。目前新能源汽车电机按绕组形状可分为圆线电机和扁线电机，在同样的风冷或液冷条件下，扁线电机由于内部更紧凑、空隙更少，使得其散热和热传导优于圆线电机，但其设计难度更大，制造成本也更高。In the electric drive system, the motor is the core, and the performance of the motor largely determines the performance of the whole vehicle. Heat dissipation is an important factor that restricts the improvement of motor performance. Whether the problem of motor heating can be effectively solved becomes the key to further improve the motor's limit power. At present, new energy vehicle motors can be divided into round wire motors and flat wire motors according to the shape of the winding. Under the same air cooling or liquid cooling conditions, the flat wire motor has a more compact interior and fewer gaps, making its heat dissipation and heat conduction better than the round wire motor, but its design is more difficult and the manufacturing cost is higher.
发明内容Summary of the invention
针对现有技术的不足，本发明提出一种基于弧型折弯相变热管的圆线电机散热结构，能够显著改善线圈绕组的散热效率，提升电机极限功率，延长电机工作寿命。In view of the deficiencies in the prior art, the present invention proposes a round wire motor heat dissipation structure based on an arc-shaped bent phase change heat pipe, which can significantly improve the heat dissipation efficiency of the coil winding, increase the motor's maximum power, and extend the motor's service life.
本发明的技术方案是这样实现的：The technical solution of the present invention is achieved in this way:
一种基于弧型折弯相变热管的圆线电机散热结构，包括机壳、相变热管以及悬伸绕组，其特征在于：所述悬伸绕组设置在呈所述机壳中部，所述悬伸绕
组和所述机壳内壁之间设有散热组件；所述散热组价包括数条呈弧型的相变热管。A round wire motor heat dissipation structure based on an arc-shaped bent phase-change heat pipe comprises a housing, a phase-change heat pipe and a suspension winding, wherein the suspension winding is arranged in the middle of the housing. A heat dissipation component is provided between the group and the inner wall of the casing; the heat dissipation component includes a plurality of arc-shaped phase-change heat pipes.
进一步地，所述相变热管的直径小于或等于所述机壳内壁与所述悬伸绕组的间距。Furthermore, a diameter of the phase-change heat pipe is less than or equal to a distance between an inner wall of the casing and the cantilever winding.
进一步地，所述相变热管弯折方向朝向所述悬伸绕组，以使数条相变热管环绕所述悬伸绕组一周设置。Furthermore, the bending direction of the phase-change heat pipe is toward the suspension winding, so that a plurality of phase-change heat pipes are arranged around the suspension winding.
进一步地，所述相变热管弯折方向与所述悬伸绕组径向相同。Furthermore, the bending direction of the phase change heat pipe is the same as the radial direction of the cantilever winding.
进一步地，所述相变热管之间填充有导热界面材料。Furthermore, thermal conductive interface materials are filled between the phase change heat pipes.
进一步地，所述相变热管通过单层嵌入或多层堆叠的方式设置在所述悬伸绕组与所述机壳内壁之间。Furthermore, the phase-change heat pipe is arranged between the overhanging winding and the inner wall of the casing in a single-layer embedded or multi-layer stacked manner.
进一步地，所述导热界面材料的厚度小于或等于所述相变热管的直径。Furthermore, the thickness of the thermal interface material is less than or equal to the diameter of the phase change heat pipe.
进一步地，所述散热组件覆盖所述悬伸绕组外表面设置。Furthermore, the heat dissipation component is arranged to cover the outer surface of the overhanging winding.
进一步地，所述弯折的相变热管弧度角大于所述相变热管直径。Furthermore, the curvature angle of the bent phase-change heat pipe is greater than the diameter of the phase-change heat pipe.
与现有技术相比，本发明具有以下优点：Compared with the prior art, the present invention has the following advantages:
本发明通过将数根折弯的相变热管作为散热组件填充至机壳和悬伸绕组之间，使得悬伸绕组与相接触的相变热管之间形成额外的散热通道，热量通过散热组件传递至机壳并散发到空气中，该结构由于增加了由折弯的相变热管组成的散热组件，使得圆线电机内部更加紧凑，避免了空气造成的导热性能差的问题。The present invention fills several bent phase-change heat pipes as heat dissipation components between the casing and the overhanging winding, so that an additional heat dissipation channel is formed between the overhanging winding and the contacting phase-change heat pipes. Heat is transferred to the casing through the heat dissipation component and dissipated into the air. Since the structure adds the heat dissipation component composed of the bent phase-change heat pipes, the interior of the round wire motor is more compact and the problem of poor thermal conductivity caused by air is avoided.
为了更清楚地说明本发明实施方式或现有技术中的技术方案，下面将对实施方式或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面
描述中的附图仅仅是本发明的一些实施方式，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. The drawings in the description are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.
图1为本发明中相变热管的结构示意图；FIG1 is a schematic diagram of the structure of a phase change heat pipe in the present invention;
图2为本发明实施方式一的示意图；FIG2 is a schematic diagram of a first embodiment of the present invention;
图3为本发明实施方式二的示意图；FIG3 is a schematic diagram of a second embodiment of the present invention;
图4为本发明实施方式三的示意图；FIG4 is a schematic diagram of a third embodiment of the present invention;
图5为图3中A处的局部放大示意图；FIG5 is a partial enlarged schematic diagram of point A in FIG3 ;
图6为图4中B处的局部放大示意图；FIG6 is a partial enlarged schematic diagram of point B in FIG4 ;
附图标识：1、机壳；2、相变热管；3、悬伸绕组。Figure symbols: 1. Casing; 2. Phase change heat pipe; 3. Suspension winding.
下面将结合本发明实施方式中的附图，对本发明实施方式中的技术方案进行清楚、完整地描述，显然，所描述的实施方式仅仅是本发明一部分实施方式，而不是全部的实施方式。基于本发明中的实施方式，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施方式，都属于本发明保护的范围。The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
在本发明的描述中，需要说明的是，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”、“第三”、“第四”等仅用于描述目的，而不能理解为指示或暗示相对重要性。In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", "fourth", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以
是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection or It can be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a communication between the two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
参见图1至图6，本发明实施方式公开了一种基于弧型折弯相变热管2的圆线电机散热结构，包括机壳1、相变热管2以及悬伸绕组3，其特征在于：所述悬伸绕组3设置在呈所述机壳1中部，所述悬伸绕组3和所述机壳1内壁之间设有散热组件；所述散热组价包括数条呈弧型的相变热管2。如图1所示，采用模具将相变热管2进行折弯处理，其中R1为悬伸绕组3的外径，R2为机壳1的内径，其形状针对不同尺寸的电机可进行定制化设计与制造。由于减少了圆线电机内部的空气间隙，避免热量由于空气导热性差的问题难以散发出去，同时增加了与悬伸绕组3贴合的折弯的相变热管2，进一步将热量传递到机壳1外侧，增加了圆线电机中线圈绕组的散热效率，从而提升电机极限功率，无需担心温度过高导致电机烧毁，延长了电机工作寿命。Referring to Figures 1 to 6, the embodiment of the present invention discloses a heat dissipation structure of a round wire motor based on an arc-shaped bent phase-change heat pipe 2, comprising a housing 1, a phase-change heat pipe 2 and a cantilever winding 3, characterized in that: the cantilever winding 3 is arranged in the middle of the housing 1, and a heat dissipation component is arranged between the cantilever winding 3 and the inner wall of the housing 1; the heat dissipation component comprises a plurality of arc-shaped phase-change heat pipes 2. As shown in Figure 1, the phase-change heat pipe 2 is bent by a mold, wherein R1 is the outer diameter of the cantilever winding 3, and R2 is the inner diameter of the housing 1, and its shape can be customized for motors of different sizes. Since the air gap inside the round wire motor is reduced, the heat is prevented from being difficult to dissipate due to the poor thermal conductivity of the air, and at the same time, the bent phase-change heat pipe 2 that fits the cantilever winding 3 is added, and the heat is further transferred to the outside of the housing 1, thereby increasing the heat dissipation efficiency of the coil winding in the round wire motor, thereby improving the motor limit power, and there is no need to worry about the motor burning due to excessive temperature, thereby extending the working life of the motor.
进一步地实施方式，所述相变热管2的直径小于或等于所述机壳1内壁与所述悬伸绕组3的间距。当所述相变热管2直径小于所述机壳1内壁与所述悬伸绕组3的间距时，采用多根相变热管2堆叠设置的方法，且确保堆叠的相变热管2能够填充机壳1与悬伸绕组3之间的空间；当所述相变热管2直径等于所述机壳1内壁与所述悬伸绕组3的间距时，只需在机壳1和悬伸绕组3之间设置一根相变热管2，即可完全填充。In a further embodiment, the diameter of the phase-change heat pipe 2 is less than or equal to the distance between the inner wall of the casing 1 and the suspension winding 3. When the diameter of the phase-change heat pipe 2 is less than the distance between the inner wall of the casing 1 and the suspension winding 3, a method of stacking multiple phase-change heat pipes 2 is adopted, and it is ensured that the stacked phase-change heat pipes 2 can fill the space between the casing 1 and the suspension winding 3; when the diameter of the phase-change heat pipe 2 is equal to the distance between the inner wall of the casing 1 and the suspension winding 3, only one phase-change heat pipe 2 needs to be arranged between the casing 1 and the suspension winding 3 to completely fill the space.
实施方式一Implementation Method 1
如图2所示，将绝缘处理后的相变热管23嵌入机壳11与悬伸绕组32之间，并在空隙中填入导热界面材料，相变热管2的折弯角度和长度可根据悬伸
绕组3的尺寸进行定制化设计与排布，其安装标准应覆盖整个悬伸绕组3，在本实施方式中采用3根折弯角度为120°的相变热管2，因此采用2根折弯角度为180°的相变热管2，或4根折弯角度为90°的相变热管2也能起到相同的保护效果，电机外壳可针对不同尺寸的电机进行定制化设计与制造。在本实施方式中，导热界面材料，选用导热胶，也可选用导热泥等同样具有导热效果的物质进行填充。由于散热结构需要覆盖悬伸绕组3的外表面，因此本实施方式中相变热管2平行排布在悬伸绕组3外侧，确保散热结构能够充分与悬伸绕组3相贴合，起到更好的散热作用。As shown in FIG. 2 , the insulated phase change heat pipe 23 is embedded between the housing 11 and the overhanging winding 32, and the gap is filled with a thermal interface material. The bending angle and length of the phase change heat pipe 2 can be adjusted according to the overhanging winding 32. The size of the winding 3 is customized and arranged, and its installation standard should cover the entire overhang winding 3. In this embodiment, three phase-change heat pipes 2 with a bending angle of 120° are used, so two phase-change heat pipes 2 with a bending angle of 180°, or four phase-change heat pipes 2 with a bending angle of 90° can also achieve the same protection effect. The motor housing can be customized and manufactured for motors of different sizes. In this embodiment, the thermal interface material is selected from thermal conductive glue, and thermal conductive mud and other materials that also have thermal conductive effects can also be used for filling. Since the heat dissipation structure needs to cover the outer surface of the overhang winding 3, the phase-change heat pipes 2 in this embodiment are arranged in parallel on the outside of the overhang winding 3 to ensure that the heat dissipation structure can fully fit the overhang winding 3 to achieve better heat dissipation.
实施方式二Implementation Method 2
如图3所示，本实施方式与实施方式一的不同之处在于，当机壳1内壁与悬伸绕组3的间距过大，超出了相变热管2的最大制造直径时，需要采用多层堆叠的方式，确保悬伸绕组3与机壳1内壁间额外散热通道的完整性。当存在多层相变热管2时，应按照相变热管2-导热界面材料-相变热管2的装配顺序，即每放置一根相变热管2都要灌注一层导热界面材料，待导热界面材料固化后再嵌入下一条热管，并再次灌注导热界面材料，每层导热界面材料厚度小于等于相变热管2直径，重复上述步骤，直至绕组与机壳1内壁的间隙被填充完整。As shown in FIG3 , the difference between this embodiment and the first embodiment is that when the distance between the inner wall of the casing 1 and the overhanging winding 3 is too large and exceeds the maximum manufacturing diameter of the phase-change heat pipe 2, a multi-layer stacking method is required to ensure the integrity of the additional heat dissipation channel between the overhanging winding 3 and the inner wall of the casing 1. When there are multiple layers of phase-change heat pipes 2, the assembly sequence should be phase-change heat pipe 2-thermal interface material-phase-change heat pipe 2, that is, each time a phase-change heat pipe 2 is placed, a layer of thermal interface material must be poured, and after the thermal interface material is solidified, the next heat pipe is embedded, and the thermal interface material is poured again. The thickness of each layer of thermal interface material is less than or equal to the diameter of the phase-change heat pipe 2, and the above steps are repeated until the gap between the winding and the inner wall of the casing 1 is completely filled.
实施方式三Implementation Method 3
如图4所示，本实施方式与实施方式二的不同之处在于，所述相变热管2弯折方向与所述悬伸绕组3径向相同。该种结构下，弯折的相变热管2弧度角大于所述相变热管2直径。在本实施方式中，采用直径小于机壳1和悬伸绕组3间距的相变热管2堆叠填充在空隙中，当相变热管2直径与机壳1和悬伸绕组3间距相等时，也可采用单根相变热管2嵌入的方式填充，为了使散热组件能够完全覆盖在悬伸绕组3外，本实施方式中相变热管2交错排布，呈鱼鳞状
分布在悬伸绕组3外，并用导热界面材料填充空隙，该种排布方式下的散热结构更加稳定，且与悬伸绕组3更加贴合，散热效果更好。As shown in FIG4 , the difference between this embodiment and the second embodiment is that the bending direction of the phase change heat pipe 2 is the same as the radial direction of the suspension winding 3. Under this structure, the arc angle of the bent phase change heat pipe 2 is greater than the diameter of the phase change heat pipe 2. In this embodiment, phase change heat pipes 2 whose diameter is smaller than the distance between the casing 1 and the suspension winding 3 are stacked and filled in the gap. When the diameter of the phase change heat pipe 2 is equal to the distance between the casing 1 and the suspension winding 3, a single phase change heat pipe 2 can also be embedded to fill the gap. In order to allow the heat dissipation component to completely cover the outside of the suspension winding 3, the phase change heat pipes 2 in this embodiment are staggered and arranged in a fish scale shape. Distributed outside the overhanging winding 3, and the gaps are filled with thermally conductive interface materials. The heat dissipation structure under this arrangement is more stable, and is more closely fitted to the overhanging winding 3, resulting in a better heat dissipation effect.
以上所述仅为本发明的较佳实施方式而已，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims (9)
- 一种基于弧型折弯相变热管的圆线电机散热结构，包括机壳、相变热管以及悬伸绕组，其特征在于：所述悬伸绕组设置在呈所述机壳中部，所述悬伸绕组和所述机壳内壁之间设有散热组件；A round wire motor heat dissipation structure based on an arc-shaped bent phase-change heat pipe comprises a casing, a phase-change heat pipe and a suspension winding, wherein the suspension winding is arranged in the middle of the casing, and a heat dissipation component is arranged between the suspension winding and the inner wall of the casing;所述散热组价包括数条呈弧型的相变热管。The heat dissipation assembly includes a plurality of arc-shaped phase-change heat pipes.
- 根据权利要求1所述的基于弧型折弯相变热管的圆线电机散热结构，其特征在于：所述相变热管的直径小于或等于所述机壳内壁与所述悬伸绕组的间距。According to the round wire motor heat dissipation structure based on arc-shaped bent phase change heat pipe according to claim 1, it is characterized in that the diameter of the phase change heat pipe is less than or equal to the distance between the inner wall of the casing and the overhanging winding.
- 根据权利要求2所述的基于弧型折弯相变热管的圆线电机散热结构，其特征在于：所述相变热管弯折方向朝向所述悬伸绕组，以使数条相变热管环绕所述悬伸绕组一周设置。According to the round wire motor heat dissipation structure based on arc-shaped bent phase change heat pipes according to claim 2, it is characterized in that the bending direction of the phase change heat pipe is toward the overhanging winding, so that several phase change heat pipes are arranged around the overhanging winding.
- 根据权利要求2所述的基于弧型折弯相变热管的圆线电机散热结构，其特征在于：所述相变热管弯折方向与所述悬伸绕组径向相同。According to the round wire motor heat dissipation structure based on arc-shaped bent phase change heat pipe according to claim 2, it is characterized in that the bending direction of the phase change heat pipe is the same as the radial direction of the overhang winding.
- 根据权利要求3或4所述的基于弧型折弯相变热管的圆线电机散热结构，其特征在于：所述相变热管之间填充有导热界面材料。According to the round wire motor heat dissipation structure based on arc-shaped bent phase change heat pipes according to claim 3 or 4, it is characterized in that thermal conductive interface materials are filled between the phase change heat pipes.
- 根据权利要求3或4所述的基于弧型折弯相变热管的圆线电机散热结构，其特征在于：所述相变热管通过单层嵌入或多层堆叠的方式设置在所述悬伸绕组与所述机壳内壁之间。According to the round wire motor heat dissipation structure based on arc-shaped bent phase change heat pipe according to claim 3 or 4, it is characterized in that the phase change heat pipe is arranged between the overhanging winding and the inner wall of the casing by single-layer embedding or multi-layer stacking.
- 根据权利要求5所述的基于弧型折弯相变热管的圆线电机散热结构，其特征在于：所述导热界面材料的厚度小于或等于所述相变热管的直径。According to the round wire motor heat dissipation structure based on the arc-shaped bent phase change heat pipe according to claim 5, it is characterized in that the thickness of the thermal conductive interface material is less than or equal to the diameter of the phase change heat pipe.
- 根据权利要求1所述的基于弧型折弯相变热管的圆线电机散热结构，其特征在于：所述散热组件覆盖所述悬伸绕组外表面设置。According to the round wire motor heat dissipation structure based on arc-shaped bent phase change heat pipe according to claim 1, it is characterized in that the heat dissipation component is arranged to cover the outer surface of the overhanging winding.
- 根据权利要求4所述的基于弧型折弯相变热管的圆线电机散热结构，其特征在于：所述弯折的相变热管弧度角大于所述相变热管直径。 According to the round wire motor heat dissipation structure based on arc-shaped bent phase change heat pipe according to claim 4, it is characterized in that the arc angle of the bent phase change heat pipe is greater than the diameter of the phase change heat pipe.
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| CN202211317356.9A CN115514160A (en) | 2022-10-26 | 2022-10-26 | Round wire motor heat radiation structure based on arc-shaped bending phase-change heat pipe |
| CN202211317356.9 | 2022-10-26 |
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| US8760018B2 (en) * | 2012-01-20 | 2014-06-24 | Asia Vital Components Co., Ltd. | Motor stator with heat dissipation structure |
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| CN106532994A (en) * | 2016-12-14 | 2017-03-22 | 华南理工大学 | 3D phase-change heat pipe technology-based high-heat-conductivity motor stator assembly for vehicle |
| CN108155761A (en) * | 2018-01-31 | 2018-06-12 | 华南理工大学 | A kind of motor of automobile motor stator module application for strengthening heat management |
| US20220190686A1 (en) * | 2019-02-21 | 2022-06-16 | Safran | Electrical machine winding having improved colling |
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