WO2024250424A1 - 一种新型电机结构 - Google Patents

一种新型电机结构 Download PDF

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Publication number
WO2024250424A1
WO2024250424A1 PCT/CN2023/113415 CN2023113415W WO2024250424A1 WO 2024250424 A1 WO2024250424 A1 WO 2024250424A1 CN 2023113415 W CN2023113415 W CN 2023113415W WO 2024250424 A1 WO2024250424 A1 WO 2024250424A1
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WO
WIPO (PCT)
Prior art keywords
fan
shell
radiator
control circuit
circuit board
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Application number
PCT/CN2023/113415
Other languages
English (en)
French (fr)
Inventor
莫宏伟
边文清
俞超
梁志成
Original Assignee
中山大洋电机股份有限公司
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Publication of WO2024250424A1 publication Critical patent/WO2024250424A1/zh

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/30—Structural association with control circuits or drive circuits
    • 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
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • 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 utility model relates to a novel motor structure.
  • Existing PMSM motors or BLDC motors usually consist of two parts: a stand-alone motor and a controller.
  • the stand-alone motor includes a stator assembly, a rotor assembly, and a motor housing
  • the controller mainly includes a box body and a control circuit board. Both the stand-alone motor and the controller generate a lot of heat, and when the ambient temperature is high, natural cooling often cannot meet the design requirements, so additional heat dissipation devices are required.
  • the cooling fan generates enough pressure to drive the required gas through the motor so that the temperature rise of the whole machine is within a reasonable range.
  • the motor speed and overall dimensions have been determined, that is, the outer diameter of the cooling fan and the rotor rotation speed have been basically determined. If the motor is running at a low speed for a long time, there is not enough wind pressure for the cooling air to flow through the controller and the surface of the single machine, and the use environment is bad, the temperature rise of the whole machine will be too high, resulting in a significant shortening of the service life of the whole machine.
  • the purpose of the utility model is to provide a new motor structure, which can solve the problem that in the prior art, a single machine and a controller are assembled together in a whole machine structure, the motor speed and the overall appearance size have been determined in the early design stage, that is, the outer diameter size of the cooling fan and the rotor rotation speed are basically determined.
  • the motor speed and the overall appearance size have been determined in the early design stage, that is, the outer diameter size of the cooling fan and the rotor rotation speed are basically determined.
  • the use environment is harsh, the temperature rise of the whole machine will be too high, resulting in a technical problem that the service life of the whole machine is greatly shortened.
  • a further object of the utility model is to provide a novel motor structure, wherein the controller can be quickly and conveniently disassembled from a single machine without affecting heat dissipation, and the single machine can be sold without further modification, which is flexible and convenient.
  • a novel motor structure includes a single machine, a motor controller and a bracket, wherein the top of the single machine is mounted with the bracket, and the motor controller is mounted on the bracket, wherein:
  • the single machine includes a motor housing, a stator assembly, a rotor assembly, a rotating shaft, a first fan and an air guide cover.
  • the stator assembly and the rotor assembly are installed in the motor housing, the rotor assembly is installed on the rotating shaft, two ends of the rotating shaft extend from two ends of the motor housing to form a front shaft extension end and a rear shaft extension end respectively, a first fan is installed on the rear shaft extension end, an air guide cover is installed outside the first fan, and an air inlet hole is arranged on an end surface of the air guide cover located behind the first fan;
  • the invention is characterized in that the motor controller comprises a control circuit board, a radiator, a high-speed cooling fan and a shell; the control circuit board, the radiator and the high-speed cooling fan are all installed in the cavity of the shell; the high-power chip on the control circuit board is attached to the top plate of the radiator; a plurality of cooling fins arranged at intervals are arranged below the top plate of the radiator; the cooling fins are divided axially; a high-speed cooling fan is installed on one side of the radiator; a high-power capacitor extending from the control circuit board is located on the other side of the radiator; and a plurality of air outlets are arranged on the front side of the shell.
  • the outer surface of the motor housing is provided with a plurality of first heat dissipation ribs arranged along the axial direction.
  • the housing comprises a top shell made of metal material and a frame installed under the top shell.
  • the above-mentioned plurality of air outlet holes are arranged on the frame.
  • the frame is a plastic part with a rectangular cross section.
  • a plurality of second heat dissipation ribs are arranged on the outer surface of the top shell.
  • the cross section of the above-mentioned bracket is shape, with reinforcing ribs set at the corners.
  • a notch is arranged above the top of the air guide cover, which is connected to the cavity inside the shell.
  • Cold air enters from the air guide cover, and part of the cold air enters the cavity inside the shell and is discharged after passing through a high-power capacitor, a radiator, a high-speed cooling fan and several air outlets.
  • the other part of the cold air passes through the outer surface of the motor casing to take away the heat of the single machine.
  • the novel motor structure of the utility model includes a single machine, a motor controller and a bracket.
  • the top of the single machine is equipped with a bracket, and the motor controller is installed on the bracket.
  • the single machine includes a motor housing, a stator assembly, a rotor assembly, a rotating shaft, a first fan and an air guide cover.
  • the first fan is installed on the rear axle extension end, and the air guide cover is installed outside the first fan.
  • An air inlet is arranged on an end face of the air guide cover behind the first fan;
  • the motor controller includes a control circuit board, a radiator, a high-speed cooling fan and a shell.
  • the control circuit board, the radiator and the high-speed cooling fan are all installed in the cavity of the shell.
  • the high-power chip on the control circuit board is attached to the top plate of the radiator.
  • a plurality of spaced cooling fins are arranged below the top plate of the radiator.
  • a high-speed cooling fan is installed on one side of the radiator.
  • the high-power capacitor extending from the control circuit board is located on the other side of the radiator.
  • a plurality of air outlets are arranged on the front side of the shell.
  • FIG1 is a perspective view of an angle provided by the utility model
  • FIG2 is a three-dimensional view from another angle provided by the utility model
  • FIG3 is an exploded view of an angle provided by the utility model
  • FIG4 is an exploded view from another angle provided by the present invention.
  • FIG5 is a left side view provided by the utility model
  • Fig. 6 is a cross-sectional view taken along line A-A of Fig. 5;
  • FIG7 is a perspective view of a motor controller provided by the present invention from one angle
  • FIG8 is a three-dimensional view of the motor controller provided by the present invention from another angle
  • FIG9 is a schematic diagram of the installation of a radiator and a high-speed cooling fan provided by the utility model
  • FIG. 10 is a schematic diagram of the installation of a control circuit board, a radiator, and a high-speed cooling fan provided by the utility model.
  • FIG. 11 is a schematic diagram of the airflow direction when the utility model is working.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • the present embodiment provides a novel motor structure, including a stand-alone machine 1, a motor controller 2 and a bracket 3.
  • the bracket 3 is mounted on the top of the stand-alone machine 1, and the motor controller 2 is mounted on the bracket 3, wherein:
  • the single machine 1 includes a motor housing 11, a stator assembly 12, a rotor assembly 13, a rotating shaft 14, a first fan 15 and an air guide cover 16.
  • the stator assembly 12 and the rotor assembly 13 are installed in the motor housing 11, and the rotor assembly 13 is installed on the rotating shaft 14.
  • Two ends of the rotating shaft 14 extend from two ends of the motor housing 11 to form a front shaft extension end 141 and a rear shaft extension end 142 respectively.
  • the first fan 15 is installed on the rear shaft extension end 142, and the air guide cover 16 is installed outside the first fan 15.
  • An air inlet hole 162 is provided on an end surface 161 of the air guide cover 16 located behind the first fan 15.
  • the motor controller 2 comprises a control circuit board 21, a radiator 22, a high-speed cooling fan 23 and a housing 24; the control circuit board 21, the radiator 22 and the high-speed cooling fan 23 are all installed in the cavity 240 of the housing 24; the high-power chip 211 on the control circuit board 21 is attached to the top plate 221 of the radiator 22; a plurality of heat dissipation fins 222 are arranged at intervals below the top plate 221 of the radiator 22; the heat dissipation fins 222 are divided along the axial direction; a high-speed cooling fan 23 is installed on one side of the radiator 22; a high-power cooling fan 23 is installed on the control circuit board 21 ...
  • the high-power capacitor 212 is located on the other side of the radiator 22, and a plurality of air outlet holes 241 are arranged on the front side 242 of the shell 24.
  • the high-speed cooling fan 23 is used to provide sufficient wind pressure, so that the cooling wind flows through the inside of the controller 2 and the surface of the single machine 1 at the same time. Even in a harsh operating environment, the temperature rise of the whole machine will not be too high, thereby extending the service life of the whole machine.
  • the motor controller 2 and the bracket 3 can be easily disassembled from the single machine 1 without affecting the heat dissipation of the motor 1.
  • the single machine can be sold without further modification, which is flexible and convenient.
  • the outer surface of the motor housing 11 is provided with a plurality of first heat dissipation ribs 110 arranged along the axial direction, so as to accelerate heat dissipation.
  • the housing 24 comprises a top shell 24a made of metal and a frame 24b mounted below the top shell 24a.
  • the plurality of air outlets 241 are arranged on the frame 24b, which is reasonably arranged and convenient to manufacture.
  • the frame 24b is a plastic part, and its cross section is a rectangular structure.
  • the outer surface of the top shell 24a is provided with a plurality of second heat dissipation ribs 243 to accelerate heat dissipation.
  • the cross section of the above-mentioned bracket 3 is The shape of the structure can be improved by providing reinforcing ribs 31 at the corners.
  • a notch 163 is provided above the top of the above-mentioned air guide cover 16, and the notch 163 is connected to the cavity 240 inside the shell 24.
  • Cold air enters from the air guide cover 16, and a part of the cold air enters the cavity 240 inside the shell 24, and is discharged after passing through the high-power capacitor 212, the radiator 22, the high-speed cooling fan 23 and a number of air outlets 241, and the other part of the cold air passes through the outer surface of the motor housing 11 to take away the heat of the single machine 1.
  • a dual fan layout of the first fan 15 and the high-speed cooling fan 23 is adopted.
  • the first fan 15 is responsible for suction
  • the high-speed cooling fan 23 is responsible for blowing. They cooperate with each other to speed up air flow and heat dissipation.
  • the high-speed cooling fan 23 When running at a low speed, the high-speed cooling fan 23 is used to provide sufficient wind pressure, so that the cooling air flows through the inside of the controller 2 and the surface of the single machine 1 at the same time. Even in a harsh operating environment, the temperature rise of the whole machine will not be too high, which prolongs the service life of the whole machine.
  • the arrow in Figure 11 indicates the direction of the air flow.

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

Abstract

本实用新型公开了一种新型电机结构，包括单机、电机控制器和支架，单机包括电机外壳、定子组件、转子组件、转轴、第一风扇和导风罩，转轴的后轴伸端上安装有第一风扇，在第一风扇的外面安装有导风罩，导风罩上设置进风孔；电机控制器包括控制线路板、散热器、高速散热风扇和壳体，控制线路板上的大功率芯片贴在散热器的顶板，散热器的顶板的下方设置有若干间隔排列散热翅片，散热翅片沿轴向分局，在散热器的一侧安装高速散热风扇，控制线路板上伸出的大功率电容位于散热器的另一侧，在壳体的前侧面都设置若干出风孔。它在低转速运行时，利用高速散热风扇提供足够的风压，在使用环境恶劣情况下，整机温升也不会过高，延长整机使用寿命。

Description

一种新型电机结构 技术领域：
本实用新型涉及一种新型电机结构。
背景技术：
近代电机都采用较高的电磁负荷，以提高材料的利用率，电机的单机容量也日益增大，因此必须改进电机的冷却系统，以提高散热能力。除了个别小型电机或特种电机外，绝大部分电机都是采用风扇强迫空气流动来冷却电机。
现有PMSM电机或者BLDC电机通常包含单机和控制器两部分，单机包括定子组件、转子组件和电机外壳，控制器主要包括盒体和控制线路板。单机和控制器两者自身发热量都大，且在使用环境温度较高的情况下，采用自然冷却往往无法满足设计要求，故需要附加散热装置，我们通常选择了较为简便的风冷。散热风扇产生足够的压力，以驱送所需的气体通过电机，使得整机温升在合理范围内。
但由于客户需求不同，是否提供整机(单机+控制器)，还是仅提供单机，就要求我们设计时控制器便于拆卸，提供两种供货方式可供客户选择。
现有技术及其存在的技术问题：现有电机设计由于空间和散热等问题，往往将单机和控制器分隔开来，即整机做成分体式的，但这样占据空间较大，且电磁抗干扰能力差；又或者单机和控制器整合，单机轴伸尾部有一散热风扇，但是这种设计要求整机运行环境良好，即受使用环境局限。
总所周知，通风面积一定时，平面速度越大(平面速度由转子的转速和风压决定)，风量越大，空气吸热量则越大，空气流动转移时能够带走更多的热量，散热效果越明显。
然而在电机电磁、结构设计初期，电机转速和整体外形尺寸已确定，即散热风扇的外径尺寸、转子旋转转速基本确定。若电机长期处于低转速运行时，没有足够的风压使得冷却风流过控制器和单机表面，加上使用环境恶劣，整机温升就会过高，导致使用整机寿命大幅度缩短。
以上情况仅针对整机而言，而对于仅提供单机的方案来说，电机尾部的散热风扇已足够电机散热。要求该电机设计时，需要兼顾整机和单机两种方案。
发明内容：
本实用新型的目的是提供一种新型电机结构，能解决现有技术中单机和控制器组装在一起的整机结构，在设计初期电机转速和整体外形尺寸已确定，即散热风扇的外径尺寸、转子旋转转速基本确定，在低转速运行时，没有足够的风压使得冷却风流过控制器和单机表面，加上使用环境恶劣，整机温升就会过高，导致使用整机寿命大幅度缩短的技术问题。
本实用新型的进一步目的是提供一种新型电机结构，控制器能快速方便地从单机上拆卸下来且不影响散热，无需再做修改就可以进行单机的销售，灵活方便。
本实用新型的目的是通过下述技术方案予以实现的。
一种新型电机结构，包括单机、电机控制器和支架，单机的顶部安装支架，电机控制器安装在支架上，其中：
单机包括电机外壳、定子组件、转子组件、转轴、第一风扇和导风罩，定子组件和转子组件安装在电机外壳里面，转子组件安装在转轴上，转轴的两端从电机外壳两端伸出分别形成前轴伸端和后轴伸端，后轴伸端上安装有第一风扇，在第一风扇的外面安装有导风罩，位于第一风扇后方的导风罩的一个端面上设置进风孔；
其特征在于：电机控制器包括控制线路板、散热器、高速散热风扇和壳体，控制线路板、散热器、高速散热风扇均安装在壳体的空腔里，控制线路板上的大功率芯片贴在散热器的顶板，散热器的顶板的下方设置有若干间隔排列散热翅片，散热翅片沿轴向分局，在散热器的一侧安装高速散热风扇，控制线路板上伸出的大功率电容位于散热器的另一侧，在壳体的前侧面都设置若干出风孔。
上述的电机外壳外表面设置有若干沿轴向布局的第一散热筋。
上述的壳体包括由金属材质制造的顶壳和安装顶壳下面的边框。
上述的若干出风孔设置在边框上。
上述的边框是塑料件，截面是矩形结构。
上述的顶壳的外表面设置若干第二散热筋。
上述的支架的截面是形，在角位上设置加强筋。
上述的导风罩的顶部上方设置缺口，缺口与壳体里面空腔连通，冷空气从导风罩进入，一部分冷空气进入到壳体里面空腔，经过大功率电容、散热器、高速散热风扇和若干出风孔后排出，另一部冷空气从电机外壳的外表面经过带走单机的热量。
本实用新型与现有技术相比，具有如下效果：
1)本实用新型的新型电机结构，包括单机、电机控制器和支架，单机的顶部安装支架，电机控制器安装在支架上，单机包括电机外壳、定子组件、转子组件、转轴、第一风扇和导风罩，后轴伸端上安装有第一风扇，在第一风扇的外面安装有导风罩，位于第一风扇后方的导风罩的一个端面上设置进风孔；电机控制器包括控制线路板、散热器、高速散热风扇和壳体，控制线路板、散热器、高速散热风扇均安装在壳体的空腔里，控制线路板上的大功率芯片贴在散热器的顶板，散热器的顶板的下方设置有若干间隔排列散热翅片，在散热器的一侧安装高速散热风扇，控制线路板上伸出的大功率电容位于散热器的另一侧，在壳体的前侧面都设置若干出风孔。它在第一风扇的外径尺寸、转子旋转的档位转速基本确定情况下，在低转速运行时，利用高速散热风扇提供足够的风压，使得冷却风同时流过控制器内部和单机的表面，即使在使用环境恶劣情况下，整机温升也不会过高，延长整机使用寿命。
2)本实用新型的其它优点在实施例部分展开详细描述。
附图说明：
图1是本实用新型提供的一个角度的立体图；
图2是本实用新型提供的另一个角度的立体图；
图3是本实用新型提供的一个角度的分解图；
图4是本实用新型提供的另一个角度的分解图；
图5是本实用新型提供的左视图；
图6是图5的A-A剖视图；
图7是本实用新型提供的电机控制器的一个角度的立体图；
图8是本实用新型提供的电机控制器的另一个角度的立体图；
图9是本实用新型提供的散热器与高速散热风扇的安装示意图；
图10是本实用新型提供的控制线路板、散热器、高速散热风扇的安装示意图。
图11是本实用新型提供的工作时的气流流向示意图。
具体实施方式：
下面通过具体实施例并结合附图对本实用新型作进一步详细的描述。
实施例一：
如图1至图11所示，本实施例提供的是一种新型电机结构，包括单机1、电机控制器2和支架3，单机1的顶部安装支架3，电机控制器2安装在支架3上，其中：
单机1包括电机外壳11、定子组件12、转子组件13、转轴14、第一风扇15和导风罩16，定子组件12和转子组件13安装在电机外壳11里面，转子组件13安装在转轴14上，转轴14的两端从电机外壳11两端伸出分别形成前轴伸端141和后轴伸端142，后轴伸端142上安装有第一风扇15，在第一风扇15的外面安装有导风罩16，位于第一风扇15后方的导风罩16的一个端面161上设置进风孔162；
其特征在于：电机控制器2包括控制线路板21、散热器22、高速散热风扇23和壳体24，控制线路板21、散热器22、高速散热风扇23均安装在壳体24的空腔240里，控制线路板21上的大功率芯片211贴在散热器22的顶板221，散热器22的顶板221的下方设置有若干间隔排列散热翅片222，散热翅片222沿轴向分局，在散热器22的一侧安装高速散热风扇23，控制线路板21上伸出 的大功率电容212位于散热器22的另一侧，在壳体24的前侧面242都设置若干出风孔241。它在第一风扇15的外径尺寸、转子旋转的档位转速基本确定情况下，在低转速运行时，利用高速散热风扇23提供足够的风压，使得冷却风同时流过控制器2内部和单机1的表面，即使在使用环境恶劣情况下，整机温升也不会过高，延长整机使用寿命。另外，电机控制器2和支架3都可以方便从单机1上拆卸下来且不影响电机1的散热，无需再做修改就可以进行单机的销售，灵活方便。
上述的电机外壳11外表面设置有若干沿轴向布局的第一散热筋110，可以加快散热。
上述的壳体24包括由金属材质制造的顶壳24a和安装顶壳24a下面的边框24b。上述的若干出风孔241设置在边框24b上，设置合理，方便制造。
上述的边框24b是塑料件，截面是矩形结构。
上述的顶壳24a的外表面设置若干第二散热筋243。可以加快散热。
上述的支架3的截面是形，在角位上设置加强筋31，可以增加结构强度。
上述的导风罩16的顶部上方设置缺口163，缺口163与壳体24里面空腔240连通，冷空气从导风罩16进入，一部分冷空气进入到壳体24里面空腔240，经过大功率电容212、散热器22、高速散热风扇23和若干出风孔241后排出，另一部冷空气从电机外壳11的外表面经过带走单机1的热量。采用第一风扇15和高速散热风扇23的双风扇布局，第一风扇15负责吸风，高速散热风扇23负责吹风，相互配合，可以加快空气流动，加快散热，在低转速运行时，利用高速散热风扇23提供足够的风压，使得冷却风同时流过控制器2内部和单机1的表面，即使在使用环境恶劣情况下，整机温升也不会过高，延长整机使用寿命，图11中箭头表示空气流的流向。
以上实施例为本实用新型的较佳实施方式，但本实用新型的实施方式不限于此，其他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 (8)

  1. 一种新型电机结构，包括单机(1)、电机控制器(2)和支架(3)，单机(1)的顶部安装支架(3)，电机控制器(2)安装在支架(3)上，其中：
    单机(1)包括电机外壳(11)、定子组件(12)、转子组件(13)、转轴(14)、第一风扇(15)和导风罩(16)，定子组件(12)和转子组件(13)安装在电机外壳(11)里面，转子组件(13)安装在转轴(14)上，转轴(14)的两端从电机外壳(11)两端伸出分别形成前轴伸端(141)和后轴伸端(142)，后轴伸端(142)上安装有第一风扇(15)，在第一风扇(15)的外面安装有导风罩(16)，位于第一风扇(15)后方的导风罩(16)的一个端面(161)上设置进风孔(162)；
    其特征在于：电机控制器(2)包括控制线路板(21)、散热器(22)、高速散热风扇(23)和壳体(24)，控制线路板(21)、散热器(22)、高速散热风扇(23)均安装在壳体(24)的空腔(240)里，控制线路板(21)上的大功率芯片(211)贴在散热器(22)的顶板(221)，散热器(22)的顶板(221)的下方设置有若干间隔排列散热翅片(222)，散热翅片(222)沿轴向分局，在散热器(22)的一侧安装高速散热风扇(23)，控制线路板(21)上伸出的大功率电容(212)位于散热器(22)的另一侧，在壳体(24)的前侧面(242)都设置若干出风孔(241)。
  2. 根据权利要求1所述的一种新型电机结构，其特征在于：电机外壳(11)外表面设置有若干沿轴向布局的第一散热筋(110)。
  3. 根据权利要求1或2所述的一种新型电机结构，其特征在于：壳体(24)包括由金属材质制造的顶壳(24a)和安装顶壳(24a)下面的边框(24b)。
  4. 根据权利要求3所述的一种新型电机结构，其特征在于：若干出风孔(241)设置在边框(24b)上。
  5. 根据权利要求4所述的一种新型电机结构，其特征在于：边框(24b)是塑料件，截面是矩形结构。
  6. 根据权利要求5所述的一种新型电机结构，其特征在于：顶壳(24a)的外表面设置若干第二散热筋(243)。
  7. 根据权利要求3所述的一种新型电机结构，其特征在于：支架(3)的截面是形，在角位上设置加强筋(31)。
  8. 根据权利要求3所述的一种新型电机结构，其特征在于：导风罩(16)的顶部上方设置缺口(163)，缺口(163)与壳体(24)里面空腔(240)连通，冷空气从导风罩(16)进入，一部分冷空气进入到壳体(24)里面空腔(240)，经过大功率电容(212)、散热器(22)、高速散热风扇(23)和若干出风孔(241)后排出，另一部冷空气从电机外壳(11)的外表面经过带走单机(1)的热量。
PCT/CN2023/113415 2023-06-07 2023-08-16 一种新型电机结构 WO2024250424A1 (zh)

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