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WO2024061103A1 - Brushless direct-current electric motor - Google Patents

Brushless direct-current electric motor Download PDF

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Publication number
WO2024061103A1
WO2024061103A1 PCT/CN2023/118860 CN2023118860W WO2024061103A1 WO 2024061103 A1 WO2024061103 A1 WO 2024061103A1 CN 2023118860 W CN2023118860 W CN 2023118860W WO 2024061103 A1 WO2024061103 A1 WO 2024061103A1
Authority
WO
WIPO (PCT)
Prior art keywords
air guide
heat dissipation
brushless
guide plates
dissipation cover
Prior art date
Application number
PCT/CN2023/118860
Other languages
French (fr)
Chinese (zh)
Inventor
胡华智
王义锋
谢惠鹏
陈腾飞
Original Assignee
亿航智能设备（广州）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 亿航智能设备（广州）有限公司 filed Critical 亿航智能设备（广州）有限公司
Publication of WO2024061103A1 publication Critical patent/WO2024061103A1/en

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • 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
    • 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 present invention relates to the field of motor technology, and in particular to a brushless DC motor.
  • the function of the brushless DC motor is to convert electrical energy into mechanical energy, which can play a role in everyone's life and business, improving everyone's quality of life, and the electric energy meets the requirements of low-carbon and environmental protection, so it is used more and more widely.
  • Brushless DC motors have the characteristics of low interference, low noise, long life and low maintenance costs. With the development of society, they have gradually begun to be used in the field of electric aircraft. But at the same time, brushless DC motors also have the characteristics of high heat generation and low output power, which makes the effective use time of brushless DC motors on aircraft not long enough.
  • the heat dissipation structure of the brushless DC motor disclosed in the related art has a heat dissipation fan port perpendicular to the central axis of the brushless DC motor, and the heat dissipation effect is average.
  • the present invention provides a brushless DC motor to solve the problem that the brushless DC motor generates too much heat and cannot be dissipated in time.
  • a brushless DC motor including a brushless DC motor body and a heat dissipation cover provided corresponding to the heat dissipation outlet of the brushless DC motor body.
  • the heat dissipation cover is radially outward.
  • the extended end is provided with a plurality of air guide plates.
  • the air guide plates are arranged at intervals along the circumferential direction.
  • the air guide plates are offset at an acute angle in the same direction along the radial direction of the heat dissipation cover.
  • the adjacent air guide plates are arranged at an acute angle in the same direction.
  • An air guide opening is formed between the two air guide plates.
  • the air guide plate is arc-shaped.
  • a bottom is provided between two adjacent air guide plates close to the outer circumferential end of the heat dissipation cover, and the two adjacent air guide plates and the bottom form an air guide groove.
  • the length of the air guide slot is smaller than the length of the air guide plate.
  • the bottom is provided at an end of two adjacent air guide plates away from the heat dissipation air outlet or at an end close to the heat dissipation air outlet.
  • a groove is provided at the connection between the air guide plate and the bottom.
  • the brushless DC motor provided by the present invention is provided with a plurality of air guide plates at the end of the heat dissipation cover extending radially outward.
  • the air guide plates are arranged at intervals along the circumferential direction to guide the air.
  • the plate is offset at an acute angle in the same direction along the radial direction of the heat dissipation cover.
  • Two adjacent air guide plates form an air guide port, which greatly increases the efficiency of heat dissipation and improves the service life and performance of the brushless DC motor.
  • Figure 1 is a schematic structural diagram of a DC brushless motor provided by the present invention.
  • Figure 2 is a schematic structural diagram of the heat dissipation cover of the brushless DC motor provided by the present invention.
  • Figure 3 is an enlarged structural schematic diagram of the air guide at position A on the heat dissipation cover provided by the present invention.
  • Figure 4 is a comparison chart of the heat dissipation performance of the brushless DC motor provided by the present invention and the ordinary brushless DC motor.
  • Brushless DC motor body 10 heat dissipation cover 20, air guide plate 21, bottom 30, groove 31, and through hole 32.
  • Figure 1 is a schematic structural diagram of the brushless DC motor provided by the present invention.
  • the present invention provides a brushless DC motor, which includes a brushless DC motor body 10 and a heat dissipation cover 20 arranged corresponding to the heat dissipation outlet of the brushless DC motor body 10, wherein the end of the heat dissipation cover 20 extending radially outward is provided with a plurality of air guide plates 21, the air guide plates 21 are arranged in sequence at intervals along the circumferential direction, the air guide plates 21 are arranged to be offset in the same direction by an acute angle along the radial direction of the heat dissipation cover 20, and an air guide outlet is formed between two adjacent air guide plates 21.
  • the brushless DC motor body 10 only lacks a heat dissipation cover 20 for heat dissipation.
  • the heat dissipation cover 20 corresponds to the air outlet of the brushless DC motor body 10 Cover and secure to form a complete BLDC motor.
  • the length of the air guide plate 21 is smaller than the radial length of the heat dissipation cover. In this embodiment, the length of the air guide plate 21 is much smaller than the radial length of the heat dissipation cover 20 .
  • Figure 2 is a schematic structural diagram of the heat dissipation cover of the brushless DC motor provided by the present invention.
  • Figure 3 is an enlarged structural schematic diagram of the air guide at position A on the heat dissipation cover provided by the present invention.
  • the side cross section of the air guide plate 21 is arc-shaped, and further is arc-shaped.
  • a bottom 30 is provided between two adjacent air guide plates 21 close to the outer circumferential end of the heat dissipation cover 20 , and the two adjacent air guide plates 21 and the bottom 30 form an air guide groove.
  • the length of the air guide groove is smaller than the length of the air guide plate 21 . In this way, there is still a through hole 32 between the air guide groove and the ends of the two adjacent air guide plates 21 close to the central axis of the heat dissipation cover 20, and the hot air is emitted from the brushless DC motor body 10 to the brushless DC motor. outside.
  • the bottom 30 can be disposed at an end of the two air guide plates away from the heat dissipation air outlet, or can be disposed at an end of the two air guide plates close to the heat dissipation air outlet. In this embodiment, the bottom 30 is disposed between the ends of the two air guide plates close to the heat dissipation outlet.
  • a groove 31 is provided at the connection between the air guide plate 21 and the bottom 30 .
  • Figure 4 is a comparison chart of the heat dissipation performance of the brushless DC motor provided by the present invention and the ordinary brushless DC motor.
  • the one with the highest temperature rise is the ordinary brushless DC motor. It can be seen from the figure that the temperature of the brushless DC motor provided by the present invention with low temperature rise is about 16 degrees lower than that of the ordinary brushless DC motor under the same working conditions.
  • the brushless DC motor has obvious heat dissipation advantages.
  • the brushless DC motor provided by the present invention is provided with a plurality of air guide plates at the end of the heat dissipation cover extending radially outward.
  • the air guide plates are arranged at intervals along the circumferential direction, and the air guide plates are arranged along the radial direction of the heat dissipation cover.
  • an air guide is formed between two adjacent air guide plates, so that the air guide has a wind guiding effect, strengthens heat dissipation, slows down temperature rise, and has better performance of the brushless DC motor;
  • wind guide The board is arc-shaped, which further enhances the wind guiding effect and further enhances heat dissipation; there is a bottom between the two adjacent air guide plates close to the outer circumference of the heat dissipation cover, and the two adjacent air guide plates are formed with the bottom
  • the air guide groove further enhances the wind guide effect, thereby further enhancing heat dissipation;
  • the connection between the air guide plate and the bottom is provided with a groove, which further enhances the wind guide effect, thereby further enhancing heat dissipation.
  • the brushless DC motor provided by the present invention is provided with a plurality of air guide plates at the end portion of the heat dissipation cover extending radially outward, the air guide plates are arranged in sequence along the circumferential direction at intervals, the air guide plates are offset in the same direction along the radial direction of the heat dissipation cover by an acute angle, and two adjacent air guide plates form an air guide port, which greatly increases the heat dissipation efficiency and improves the service life and performance of the brushless DC motor. Therefore, it has industrial applicability.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Frames (AREA)
  • Motor Or Generator Cooling System (AREA)

Abstract

The present invention relates to the technical field of electric motors, and particularly relates to a brushless direct-current electric motor. The brushless direct-current electric motor comprises a brushless direct-current electric motor body (10), and a heat dissipation cover (20) arranged corresponding to a heat dissipation air outlet of the brushless direct-current electric motor body (10), wherein a plurality of air guide plates (21) are arranged at the end portion of the heat dissipation cover (20) that extends outwards in a radial direction; the air guide plates (21) are sequentially arranged at intervals in a circumferential direction; the air guide plates (21) are offset by an acute angle in the same direction in the radial direction of the heat dissipation cover; and an air guide port is formed by means of two adjacent air guide plates (21). In the present invention, the plurality of air guide plates are arranged at the end portion of the heat dissipation cover that extends outwards in the radial direction, the air guide plates are sequentially arranged at intervals in the circumferential direction and are offset by an acute angle in the same direction in the radial direction of the heat dissipation cover, and one air guide port is formed by means of two adjacent air guide plates, thereby greatly improving the heat dissipation efficiency, prolonging the service life of the brushless direct-current electric motor and improving the performance thereof.

Description

一种直流无刷电机A brushless DC motor 技术领域Technical field
本发明涉及电机技术领域，尤其涉及一种直流无刷电机。The present invention relates to the field of motor technology, and in particular to a brushless DC motor.
背景技术Background technique
直流无刷电机的作用是将电能转化为机械能，其可以为大家的生活及在商业中发挥作用，提高大家的生活质量，并且电能符合低碳环保要求，所以应用越来越广泛。The function of the brushless DC motor is to convert electrical energy into mechanical energy, which can play a role in everyone's life and business, improving everyone's quality of life, and the electric energy meets the requirements of low-carbon and environmental protection, so it is used more and more widely.
直流无刷电机具有低干扰、噪音低、寿命长和维护成本低的特点，随着社会的发展已逐步开始使用在电动航空器领域。但同时直流无刷电机也具有发热大、输出功率小的特点，使得航空器上的直流无刷电机有效使用时间不够长。Brushless DC motors have the characteristics of low interference, low noise, long life and low maintenance costs. With the development of society, they have gradually begun to be used in the field of electric aircraft. But at the same time, brushless DC motors also have the characteristics of high heat generation and low output power, which makes the effective use time of brushless DC motors on aircraft not long enough.
目前，相关技术公开的直流无刷直流无刷电机的散热结构，其散热风扇口与直流无刷电机的中心轴垂直，散热效果一般。At present, the heat dissipation structure of the brushless DC motor disclosed in the related art has a heat dissipation fan port perpendicular to the central axis of the brushless DC motor, and the heat dissipation effect is average.
因此，亟需一种直流无刷电机，解决直流无刷直流无刷电机发热大无法及时散出的技术难题。Therefore, there is an urgent need for a brushless DC motor to solve the technical problem that the brushless DC motor generates too much heat and cannot be dissipated in time.
技术问题technical problem
有鉴于此，本发明提供一种直流无刷电机，以解决直流无刷电机发热大无法及时散出的问题。In view of this, the present invention provides a brushless DC motor to solve the problem that the brushless DC motor generates too much heat and cannot be dissipated in time.
技术解决方案Technical solutions
本发明解决上述技术问题所采用的技术方案如下：The technical solutions adopted by the present invention to solve the above technical problems are as follows:
根据本发明的一个方面，提供的一种直流无刷电机，包括直流无刷电机本体及与所述直流无刷电机本体的散热出风口对应设置的散热盖，所述散热盖沿径向向外延伸的端部设有多个导风板，所述导风板沿周向依次间隔排布，所述导风板沿所述散热盖的径向向同一方向偏移一个锐角设置，相邻的两个导风板之间形成一个导风口。According to one aspect of the present invention, a brushless DC motor is provided, including a brushless DC motor body and a heat dissipation cover provided corresponding to the heat dissipation outlet of the brushless DC motor body. The heat dissipation cover is radially outward. The extended end is provided with a plurality of air guide plates. The air guide plates are arranged at intervals along the circumferential direction. The air guide plates are offset at an acute angle in the same direction along the radial direction of the heat dissipation cover. The adjacent air guide plates are arranged at an acute angle in the same direction. An air guide opening is formed between the two air guide plates.
优选的，所述导风板为弧形。Preferably, the air guide plate is arc-shaped.
优选的，相邻的两个所述导风板之间靠近所述散热盖外圆一端设有底部，相邻的两个所述导风板与所述底部构成导风槽。Preferably, a bottom is provided between two adjacent air guide plates close to the outer circumferential end of the heat dissipation cover, and the two adjacent air guide plates and the bottom form an air guide groove.
优选的，所述导风槽的长度小于所述导风板的长度。Preferably, the length of the air guide slot is smaller than the length of the air guide plate.
优选的，所述底部设置在相邻的两个所述导风板的远离所述散热出风口一端或者靠近所述散热出风口一端。Preferably, the bottom is provided at an end of two adjacent air guide plates away from the heat dissipation air outlet or at an end close to the heat dissipation air outlet.
优选的，所述导风板与所述底部的连接处设有凹槽。Preferably, a groove is provided at the connection between the air guide plate and the bottom.
有益效果beneficial effects
与现有技术相比，本发明提供的直流无刷电机，通过在散热盖沿径向向外延伸的端部设有多个导风板，导风板沿周向依次间隔排布，导风板沿散热盖的径向向同一方向偏移一个锐角设置，相邻的两个导风板构成一个导风口，大大增加了散热的效率，提高了直流无刷电机的使用时长和性能。Compared with the prior art, the brushless DC motor provided by the present invention is provided with a plurality of air guide plates at the end of the heat dissipation cover extending radially outward. The air guide plates are arranged at intervals along the circumferential direction to guide the air. The plate is offset at an acute angle in the same direction along the radial direction of the heat dissipation cover. Two adjacent air guide plates form an air guide port, which greatly increases the efficiency of heat dissipation and improves the service life and performance of the brushless DC motor.
附图说明Description of the drawings
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例 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例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提 下，还可以根据这些附图示出的结构获得其他的附图。In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without exerting creative efforts.
图1为本发明提供的直流无刷电机的结构示意图。Figure 1 is a schematic structural diagram of a DC brushless motor provided by the present invention.
图2为本发明提供的直流无刷电机的散热盖的结构示意图。Figure 2 is a schematic structural diagram of the heat dissipation cover of the brushless DC motor provided by the present invention.
图3为本发明提供的散热盖上A处导风口的放大结构示意图。Figure 3 is an enlarged structural schematic diagram of the air guide at position A on the heat dissipation cover provided by the present invention.
图4为本发明提供的直流无刷电机与普通直流无刷电机的散热性能的对比图。Figure 4 is a comparison chart of the heat dissipation performance of the brushless DC motor provided by the present invention and the ordinary brushless DC motor.
附图标记：Reference signs:
直流无刷电机本体10，散热盖20，导风板21，底部30，凹槽31，通孔32。Brushless DC motor body 10, heat dissipation cover 20, air guide plate 21, bottom 30, groove 31, and through hole 32.
本发明的实施方式Embodiments of the invention
为了使本发明所要解决的技术问题、技术方案及有益效果更加清楚、明白，以下结合附图和实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not intended to limit the present invention.
如图1所示，图1为本发明提供的直流无刷电机的结构示意图。As shown in Figure 1, Figure 1 is a schematic structural diagram of the brushless DC motor provided by the present invention.
本发明提供一种直流无刷电机，其包括直流无刷电机本体10及与直流无刷电机本体10的散热出风口对应设置的散热盖20，散热盖20沿径向向外延伸的端部设有多个导风板21，导风板21沿周向依次间隔排布，导风板21沿散热盖20的径向向同一方向偏移一个锐角设置，相邻的两个导风板21之间形成一个导风口。The present invention provides a brushless DC motor, which includes a brushless DC motor body 10 and a heat dissipation cover 20 arranged corresponding to the heat dissipation outlet of the brushless DC motor body 10, wherein the end of the heat dissipation cover 20 extending radially outward is provided with a plurality of air guide plates 21, the air guide plates 21 are arranged in sequence at intervals along the circumferential direction, the air guide plates 21 are arranged to be offset in the same direction by an acute angle along the radial direction of the heat dissipation cover 20, and an air guide outlet is formed between two adjacent air guide plates 21.
在本实施例中，直流无刷电机本体10与完整的直流无刷直流无刷电机相比只是缺少了一个用于散热的散热盖20，将散热盖20对应直流无刷电机本体10的出风口盖上并固定住即可形成完整的直流无刷直流无刷电机。导风板21的长度小于散热盖径向的半径长度。在本实施例中，导风板21的长度远小于散热盖20径向的半径长度。相邻的两个导风板21靠近散热盖20中心轴的端部之间是围闭的，相邻的两个导风板21远离散热盖中心轴的端部之间也是围闭的，如此，相邻的两个导风板21之间形成了供热风从直流无刷电机本体10散发至直流无刷电机之外的通孔32。In this embodiment, compared with a complete brushless DC motor, the brushless DC motor body 10 only lacks a heat dissipation cover 20 for heat dissipation. The heat dissipation cover 20 corresponds to the air outlet of the brushless DC motor body 10 Cover and secure to form a complete BLDC motor. The length of the air guide plate 21 is smaller than the radial length of the heat dissipation cover. In this embodiment, the length of the air guide plate 21 is much smaller than the radial length of the heat dissipation cover 20 . The ends of two adjacent air guide plates 21 close to the central axis of the heat dissipation cover 20 are enclosed, and the ends of two adjacent air guide plates 21 away from the central axis of the heat dissipation cover are also enclosed, so , a through hole 32 is formed between the two adjacent air guide plates 21 for the hot air to be emitted from the brushless DC motor body 10 to the outside of the brushless DC motor.
具体的，结合图2和图3，图2为本发明提供的直流无刷电机的散热盖的结构示意图。图3为本发明提供的散热盖上A处导风口的放大结构示意图。在一些实施例中，导风板21的侧截面为弧形，进一步的为圆弧形。Specifically, with reference to Figures 2 and 3, Figure 2 is a schematic structural diagram of the heat dissipation cover of the brushless DC motor provided by the present invention. Figure 3 is an enlarged structural schematic diagram of the air guide at position A on the heat dissipation cover provided by the present invention. In some embodiments, the side cross section of the air guide plate 21 is arc-shaped, and further is arc-shaped.
在一些实施例中，相邻的两个导风板21之间靠近散热盖20外圆一端设有底部30，相邻的两个导风板21与底部30构成导风槽。导风槽的长度小于导风板21的长度。如此，在导风槽与相邻的两个导风板21靠近散热盖20中心轴的端部之间任然具有通孔32，供热风从直流无刷电机本体10散发至直流无刷电机之外。可以理解的是，底部30可以设置在两个导风板远离所述散热出风口一端，也可以设置在两个导风板的靠近所述散热出风口一端。在本实施例中底部30设置在两个导风板的靠近所述散热出风口一端之间。In some embodiments, a bottom 30 is provided between two adjacent air guide plates 21 close to the outer circumferential end of the heat dissipation cover 20 , and the two adjacent air guide plates 21 and the bottom 30 form an air guide groove. The length of the air guide groove is smaller than the length of the air guide plate 21 . In this way, there is still a through hole 32 between the air guide groove and the ends of the two adjacent air guide plates 21 close to the central axis of the heat dissipation cover 20, and the hot air is emitted from the brushless DC motor body 10 to the brushless DC motor. outside. It can be understood that the bottom 30 can be disposed at an end of the two air guide plates away from the heat dissipation air outlet, or can be disposed at an end of the two air guide plates close to the heat dissipation air outlet. In this embodiment, the bottom 30 is disposed between the ends of the two air guide plates close to the heat dissipation outlet.
在一些实施例中，导风板21与底部30的连接处设有凹槽31。In some embodiments, a groove 31 is provided at the connection between the air guide plate 21 and the bottom 30 .
如图4，图4为本发明提供的直流无刷电机与普通直流无刷电机的散热性能的对比图。As shown in Figure 4, Figure 4 is a comparison chart of the heat dissipation performance of the brushless DC motor provided by the present invention and the ordinary brushless DC motor.
其中，升温高的为普通的直流无刷电机。由图可知，温度升温低的具有本发明提供的直流无刷电机比普通的直流无刷电机在相同的工况下温度下降16度左右，直流无刷电机散热优势明显。Among them, the one with the highest temperature rise is the ordinary brushless DC motor. It can be seen from the figure that the temperature of the brushless DC motor provided by the present invention with low temperature rise is about 16 degrees lower than that of the ordinary brushless DC motor under the same working conditions. The brushless DC motor has obvious heat dissipation advantages.
本发明提供的直流无刷电机，通过在散热盖沿径向向外延伸的端部设有多个导风板，导风板沿周向依次间隔排布，导风板沿散热盖的径向向同一方向偏移一个锐角设置，相邻的两个导风板之间形成一个导风口，使得导风口具有导风作用，加强了散热，温升慢，直流无刷电机性能更好；导风板为弧形，进一步的增强导风作用，进而进一步的加强了散热；相邻的两个导风板之间靠近散热盖外圆一端设有底部，相邻的两个导风板与底部构成导风槽，进一步的增强导风作用，进而进一步的加强了散热；导风板与所述底部的连接处设有凹槽，进一步的增强导风作用，进而进一步的加强了散热。The brushless DC motor provided by the present invention is provided with a plurality of air guide plates at the end of the heat dissipation cover extending radially outward. The air guide plates are arranged at intervals along the circumferential direction, and the air guide plates are arranged along the radial direction of the heat dissipation cover. It is set at an acute angle in the same direction, and an air guide is formed between two adjacent air guide plates, so that the air guide has a wind guiding effect, strengthens heat dissipation, slows down temperature rise, and has better performance of the brushless DC motor; wind guide The board is arc-shaped, which further enhances the wind guiding effect and further enhances heat dissipation; there is a bottom between the two adjacent air guide plates close to the outer circumference of the heat dissipation cover, and the two adjacent air guide plates are formed with the bottom The air guide groove further enhances the wind guide effect, thereby further enhancing heat dissipation; the connection between the air guide plate and the bottom is provided with a groove, which further enhances the wind guide effect, thereby further enhancing heat dissipation.
以上参照附图说明了本发明的优选实施例，并非因此局限本发明的权利范围。本领域技术人员不脱离本发明的范围和实质，可以有多种变型方案实现本发明，比如作为一个实施例的特征可用于另一实施例而得到又一实施例。凡在运用本发明的技术构思之内所作的任何修改、等同替换和改进，均应在本发明的权利范围之内。The preferred embodiments of the present invention have been described above with reference to the accompanying drawings, but the scope of rights of the present invention is not thereby limited. Those skilled in the art can realize the present invention in various modifications without departing from the scope and essence of the present invention. For example, features of one embodiment can be used in another embodiment to obtain yet another embodiment. Any modifications, equivalent substitutions and improvements made within the application of the technical concept of the present invention shall be within the scope of the rights of the present invention.
工业实用性Industrial applicability
本发明提供的直流无刷电机，通过在散热盖沿径向向外延伸的端部设有多个导风板，导风板沿周向依次间隔排布，导风板沿散热盖的径向向同一方向偏移一个锐角设置，相邻的两个导风板构成一个导风口，大大增加了散热的效率，提高了直流无刷电机的使用时长和性能。因此，具有工业实用性。The brushless DC motor provided by the present invention is provided with a plurality of air guide plates at the end portion of the heat dissipation cover extending radially outward, the air guide plates are arranged in sequence along the circumferential direction at intervals, the air guide plates are offset in the same direction along the radial direction of the heat dissipation cover by an acute angle, and two adjacent air guide plates form an air guide port, which greatly increases the heat dissipation efficiency and improves the service life and performance of the brushless DC motor. Therefore, it has industrial applicability.

Claims (6)

  1. 一种直流无刷电机，包括直流无刷电机本体及与所述直流无刷电机本体的散热出风口对应设置的散热盖，所述散热盖沿径向向外延伸的端部设有多个导风板，所述导风板沿周向依次间隔排布，所述导风板沿所述散热盖的径向向同一方向偏移一个锐角设置，相邻的两个导风板之间形成一个导风口。A brushless DC motor includes a brushless DC motor body and a heat dissipation cover provided corresponding to the heat dissipation outlet of the brushless DC motor body. The end of the heat dissipation cover extending radially outward is provided with a plurality of conductors. The air guide plates are arranged at intervals along the circumferential direction. The air guide plates are offset at an acute angle in the same direction along the radial direction of the heat dissipation cover. A gap is formed between two adjacent air guide plates. Air outlet.
  2. 根据权利要求1所述的直流无刷电机，其中，所述导风板为弧形。The brushless DC motor according to claim 1, wherein the air guide plate is arc-shaped.
  3. 根据权利要求1所述的直流无刷电机，其中，相邻的两个所述导风板之间靠近所述散热盖外圆一端设有底部，相邻的两个所述导风板与所述底部构成导风槽。The brushless DC motor according to claim 1, wherein a bottom is provided between two adjacent air guide plates close to the outer circumferential end of the heat dissipation cover, and the two adjacent air guide plates are connected to the outer circumferential end of the heat dissipation cover. The bottom forms an air guide groove.
  4. 根据权利要求3所述的直流无刷电机，其中，所述导风槽的长度小于所述导风板的长度。The brushless DC motor according to claim 3, wherein the length of the air guide slot is less than the length of the air guide plate.
  5. 根据权利要求3所述的直流无刷电机，其中，所述底部设置在相邻的两个所述导风板的远离所述散热出风口一端或者靠近所述散热出风口一端。The brushless DC motor according to claim 3, wherein the bottom is provided at an end of two adjacent air guide plates away from the heat dissipation outlet or an end close to the heat dissipation outlet.
  6. 根据权利要求3所述的直流无刷电机，其中，所述导风板与所述底部的连接处设有凹槽。The brushless DC motor according to claim 3, wherein a groove is provided at a connection between the air guide plate and the bottom.
PCT/CN2023/118860 2022-09-23 2023-09-14 Brushless direct-current electric motor WO2024061103A1 (en)

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CN219067975U (en) * 2022-09-23 2023-05-23 亿航智能设备（广州）有限公司 DC brushless motor

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CN101064453A (en) * 2006-04-27 2007-10-31 株式会社电装 Vehicle alternator
US20090284087A1 (en) * 2008-05-14 2009-11-19 Kokusan Denki Co., Ltd. Starter generator
CN206452220U (en) * 2017-01-20 2017-08-29 歌尔股份有限公司 Self-cooling brushless electric machine
CN216077729U (en) * 2021-09-26 2022-03-18 广州极飞科技股份有限公司 Turbine cover, power motor, power device and aircraft
CN216699737U (en) * 2022-01-12 2022-06-07 深圳市飞瑶电机科技有限公司 Liquid-cold air cooling integrated EVTOL power motor
CN219067975U (en) * 2022-09-23 2023-05-23 亿航智能设备（广州）有限公司 DC brushless motor

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101064453A (en) * 2006-04-27 2007-10-31 株式会社电装 Vehicle alternator
US20090284087A1 (en) * 2008-05-14 2009-11-19 Kokusan Denki Co., Ltd. Starter generator
CN206452220U (en) * 2017-01-20 2017-08-29 歌尔股份有限公司 Self-cooling brushless electric machine
CN216077729U (en) * 2021-09-26 2022-03-18 广州极飞科技股份有限公司 Turbine cover, power motor, power device and aircraft
CN216699737U (en) * 2022-01-12 2022-06-07 深圳市飞瑶电机科技有限公司 Liquid-cold air cooling integrated EVTOL power motor
CN219067975U (en) * 2022-09-23 2023-05-23 亿航智能设备（广州）有限公司 DC brushless motor

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