WO2023015750A1 - 一种双通道螺旋式高效散热电机结构 - Google Patents

一种双通道螺旋式高效散热电机结构 Download PDF

Info

Publication number
WO2023015750A1
WO2023015750A1 PCT/CN2021/128822 CN2021128822W WO2023015750A1 WO 2023015750 A1 WO2023015750 A1 WO 2023015750A1 CN 2021128822 W CN2021128822 W CN 2021128822W WO 2023015750 A1 WO2023015750 A1 WO 2023015750A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat dissipation
air
motor
channel
double
Prior art date
Application number
PCT/CN2021/128822
Other languages
English (en)
French (fr)
Inventor
张旭
Original Assignee
深圳市一诺微特电机有限公司
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 深圳市一诺微特电机有限公司 filed Critical 深圳市一诺微特电机有限公司
Publication of WO2023015750A1 publication Critical patent/WO2023015750A1/zh

Links

Images

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/04Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/20Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K9/00Arrangements for cooling or ventilating
    • H02K9/02Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H02K9/04Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
    • H02K9/06Arrangements 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 the technical field of electric motors, in particular to a double-channel spiral high-efficiency heat dissipation electric motor structure.
  • the small motor with dual air duct cooling and anti-magnetic field through the setting of aluminum alloy high-speed fan blades and aluminum alloy air ducts, the aluminum alloy high-speed fan blades rotate to suck the outside air into the aluminum alloy air duct through negative pressure siphon to cool down. With the negative pressure siphon of aluminum alloy high-speed fan blades, the temperature rise rate of the motor when the inner cavity of the small motor is working is greatly reduced.
  • the setting of the shell shielding magnetic sleeve and the shockproof silicone sleeve makes the small motor work more stable.
  • the utility model provides a double-channel spiral high-efficiency heat dissipation motor structure, which solves the problem of low heat dissipation efficiency.
  • a double-channel spiral type high-efficiency heat dissipation motor structure including an air intake guide base, a heat dissipation assembly is sleeved on the top of the air intake guide base, and the The interior of the heat dissipation assembly is engaged with a stator coil assembly, and the interior of the air intake guide base, the heat dissipation assembly, and the stator coil assembly are respectively fixedly installed with a first high-speed bearing, a third high-speed bearing and a second high-speed bearing, and the first The interior of the high-speed bearing, the second high-speed bearing and the third high-speed bearing runs through a shaft, and the top of the shaft is sleeved with fan blades;
  • the heat dissipation assembly includes an outer shell of the motor and an inner shell, the inner shell and the outer shell of the motor form a fixed connection structure through several groups of equidistant and circumferentially distributed air inlet plates, and the whole of the air inlet plates is inclined A through hole is opened at the center of the top of the inner shell, and several groups of equidistant arc-shaped large slot holes are opened on the top of the inner shell and outside the through hole.
  • the stator coil assembly includes a stator coil shell that is engaged inside the inner shell, and the inner wall of the stator coil shell is fixed with several groups of equidistant and circumferentially distributed coil columns, each A third ventilation channel is provided between the two coil posts.
  • a second air duct is provided between every two air inlet plates, and the air outlet of the second air duct is in the same direction as the wind flow of the fan blades.
  • the top of the motor wire runs through the inside of the connecting plate, and the inner side of the coil column is an arc-shaped structure.
  • the utility model provides a double-channel spiral high-efficiency heat dissipation motor structure. Compared with the prior art, it has the following beneficial effects:
  • a double-channel spiral high-efficiency heat dissipation motor structure The inner shell and the outer shell of the motor form a fixed connection structure through several groups of equidistant and circumferentially distributed air inlet plates, and the overall air inlet plate is inclined. There is a second air duct between the two air inlet plates, the air outlet of the second air duct is in the same direction as the wind flow of the fan blades, and there are several groups of equidistant arc-shaped large holes on the top of the inner shell and outside the through hole. Slot hole, this structure adopts a double-channel spiral design.
  • the air outlet of the second ventilation channel and the air flow of the fan blade can be in a homeopathic state, and finally discharged from the arc-shaped large slot hole, which further increases the air flow with the wind.
  • the contact area makes the heat dissipation more efficient and rapid.
  • Fig. 1 is a structural schematic diagram of a dual-channel spiral type high-efficiency heat dissipation motor structure
  • Figure 2 is an exploded view of a dual-channel spiral high-efficiency heat dissipation motor structure separated from the fan blade;
  • Fig. 3 is a structural explosion diagram of a dual-channel spiral type high-efficiency heat dissipation motor structure
  • Fig. 4 is a structural top view of a dual-channel spiral type high-efficiency heat dissipation motor structure
  • Fig. 5 is the sectional view of A-A among Fig. 4;
  • Fig. 6 is a structural schematic diagram of a dual-channel spiral high-efficiency heat dissipation motor structure heat dissipation assembly
  • Fig. 7 is a structural schematic diagram of a stator coil assembly of a double-channel spiral type high-efficiency heat dissipation motor structure.
  • Air intake guide base 2. Heat dissipation component; 21. Motor outer shell; 22. Inner shell; 23. Air intake plate; 24. Second air duct; 25. Through hole; 26. Large arc Slot hole; 3. Stator coil assembly; 31. Stator coil shell; 32. Coil column; 33. The third air duct; 34. Connecting plate; 4. The first high-speed bearing; 5. The second high-speed bearing; 6. The third High-speed bearing; 7. Shaft; 8. Fan blade; 9. First air duct; 10. Motor wire.
  • the utility model provides a technical solution for a dual-channel spiral high-efficiency heat dissipation motor structure: a dual-channel spiral high-efficiency heat dissipation motor structure, including an air intake guide base 1 and an air intake guide base 1.
  • the top is sleeved with a heat dissipation assembly 2, and the interior of the heat dissipation assembly 2 is engaged with a stator coil assembly 3, and the insides of the air intake guide base 1, the heat dissipation assembly 2, and the stator coil assembly 3 are respectively fixedly installed with the first high-speed bearing 4, the third
  • the high-speed bearing 6 and the second high-speed bearing 5 , the first high-speed bearing 4 , the second high-speed bearing 5 and the third high-speed bearing 6 have shafts 7 running through them, and fan blades 8 are sleeved on top of the shafts 7 .
  • the top of the air intake guide base 1 is provided with several groups of first air passages 9 corresponding to the third air passages 33, and a motor lead 10 runs through between every two first air passages 9, and the top of the motor lead 10 Through the connecting board 34 , the motor wire 10 is electrically connected to an external power source.
  • the cooling assembly 2 includes a motor outer shell 21 and an inner shell 22, the inner shell 22 and the motor outer shell 21 form a fixed connection structure through several groups of equidistant and circumferentially distributed air inlet plates 23, the air inlet plate The whole of 23 is inclined, and the top center of the inner shell 22 is provided with a through hole 25, and the top of the inner shell 22 and the outside of the through hole 25 are provided with several groups of equidistant arc-shaped large slots 26, each two into A second air passage 24 is arranged between the wind plates 23, and the air outlet of the second air passage 24 is in the same direction as the wind flow direction of the fan blade 8.
  • This structure adopts a double-channel spiral design, and the second air passage can be used in use.
  • the air outlet of the air passage 24 and the wind flow of the fan blade 8 are in a favorable state, and finally the wind is discharged from the arc-shaped large slot 26, which further increases the contact area with the wind and makes the heat dissipation more efficient and rapid.
  • the stator coil assembly 3 includes a stator coil housing 31 snapped inside the inner housing 22 , and the inner wall of the stator coil housing 31 is fixedly equipped with several groups of equidistant and circumferentially distributed coil posts 32 , the coil posts 32
  • the inner side is an arc-shaped structure, and a third air channel 33 is provided between every two coil columns 32 , and several groups of connecting plates 34 corresponding to the motor wires 10 are fixedly installed on the bottom of the stator coil casing 31 .
  • the working principle of the utility model when in use, electrifying the motor wire 10 can drive the fan blade 8 to rotate, and the external wind will enter from the first air passage 9 and the second air passage 24 respectively.
  • the wind in the first air passage 9 will continue to flow along the direction of the third air passage 33, and finally be discharged from the arc-shaped large slot 26, and merge with the wind flowing in the second air passage 24, so
  • the whole of the air inlet plate 23 is inclined, and the air outlet of the second ventilation channel 24 is in the same direction as the wind flow direction of the fan blades 8, so the finally converging wind will be discharged from the gap between the fan blades 8 in a unified manner.
  • the outside thereby accelerating the wind speed, ensuring the contact area with the wind, and further improving the heat dissipation efficiency.

Landscapes

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

Abstract

一种双通道螺旋式高效散热电机结构,涉及电机技术领域,第一高速轴承(4)、第二高速轴承(5)和第三高速轴承(6)的内部共同贯穿有轴杆(7),所述轴杆(7)的顶部套接有扇叶(8),内壳(22)和电机外套壳(21)共同通过若干组等距离且呈圆周状分布的进风板(23)形成固定连接结构,且进风板(23)的整体呈倾斜状,每两个进风板(23)之间均设有第二通风道(24),第二通风道(24)的出风口与扇叶(8)的风流方向相同,内壳(22)的顶部且位于通孔(25)的外侧开设有若干组等距离的弧形大槽孔(26)。上述结构通过采用双通道螺旋式的设计,在使用时,可令第二通风道(24)的出风口与扇叶(8)的风流呈顺势状态,最后从弧形大槽孔(26)排出,进一步增加了与风的接触面积,使散热更加高效迅速。

Description

一种双通道螺旋式高效散热电机结构 技术领域
本实用新型涉及电机技术领域,具体为一种双通道螺旋式高效散热电机结构。
背景技术
现有公开专利一种具有双风道降温抗磁场的小马达(公开号:CN110943567A),包括铝合金风道,所述铝合金风道内腔的顶部转动连接有铝合金高速风叶,所述铝合金风道的内腔转动连接有电机轴心,所述电机轴心的顶端且位于铝合金高速风叶的下方活动连接有一号高速滚珠轴承,所述电机轴心的顶端与一号高速滚珠轴承的内表面转动连接,本发明涉及马达技术领域。该具有双风道降温抗磁场的小马达,通过铝合金高速风叶与铝合金风道的设置,铝合金高速风叶旋转通过负压虹吸将外界空气吸入铝合金风道内部进行降温,双风道配合铝合金高速风叶的负压式虹吸,使得小马达内腔工作时的电机升温速度大大降低,通过外壳屏蔽磁套与防震硅胶套的设置,使得小马达工作更稳定。
但是上述技术,在实际使用时,风与内部结构的流动接触面积较小,从而导致散热效率低,为此,本领域的工作人员提出了一种双通道螺旋式高效散热电机结构。
实用新型内容
针对现有技术的不足,本实用新型提供了一种双通道螺旋式高效散热电机结构,解决了散热效率低的问题。
为实现以上目的,本实用新型通过以下技术方案予以实现:一种双通道螺旋式高效散热电机结构,包括进气导流底座,所述进气导流底座的顶部套接有散热组件,所述散热组件的内部卡合有定子线圈组件,所述进气导流底座、散热组件和定子线圈组件的内部分别固定安装有第一高速轴承、第三高速轴承和第二高速轴承,所述第一高速轴承、第二高速轴承和第三高速轴承的内部共同贯穿有轴杆,所述轴杆的顶部套接有扇叶;
所述散热组件包括电机外套壳和内壳,所述内壳和电机外套壳共同通过若干组等距离且呈圆周状分布的进风板形成固定连接结构,所述进风板的整体呈倾斜状,所述内壳的顶部中心处开设有通孔,所述内壳的顶部且位于通孔的外侧开设有若干组等距离的弧形大槽孔。
作为本实用新型进一步的技术方案,所述定子线圈组件包括卡合在内壳内部的定子线圈外壳,所述定子线圈外壳的内壁固定安装有若干组等距离且呈圆周状分布的线圈柱,每两个所述线圈柱之间均设有第三通风道。
作为本实用新型进一步的技术方案,所述进气导流底座的顶部开设有若干组与第三通风道相对应的第一通风道,每两个所述第一通风道之间均贯穿有一根电机导线。
作为本实用新型进一步的技术方案,每两个所述进风板之间均设有第二通风道,所述第二通风道的出风口与扇叶的风流方向相同。
作为本实用新型进一步的技术方案,所述定子线圈外壳的底部固定安装有若干组与电机导线相对应的连接板。
作为本实用新型进一步的技术方案,所述电机导线的顶部贯穿在连接板的内部,所述线圈柱的内侧为弧形结构。
有益效果
本实用新型提供了一种双通道螺旋式高效散热电机结构。与现有技术相比具备以下有益效果:
1、一种双通道螺旋式高效散热电机结构,内壳和电机外套壳共同通过若干组等距离且呈圆周状分布的进风板形成固定连接结构,且进风板的整体呈倾斜状,每两个进风板之间均设有第二通风道,第二通风道的出风口与扇叶的风流方向相同,内壳的顶部且位于通孔的外侧开设有若干组等距离的弧形大槽孔,本结构通过采用双通道螺旋式的设计,在使用时,可令第二通风道的出风口与扇叶的风流呈顺势状态,最后从弧形大槽孔排出,进一步增加了与风的接触面积,使散热更加高效迅速。
附图说明
图1为一种双通道螺旋式高效散热电机结构的结构示意图;
图2为一种双通道螺旋式高效散热电机结构与扇叶分离的结构爆炸图;
图3为一种双通道螺旋式高效散热电机结构的结构爆炸图;
图4为一种双通道螺旋式高效散热电机结构的结构俯视图;
图5为图4中A-A的剖视图;
图6为一种双通道螺旋式高效散热电机结构散热组件的结构示意图;
图7为一种双通道螺旋式高效散热电机结构定子线圈组件的结构示意图。
图中:1、进气导流底座;2、散热组件;21、电机外套壳;22、内壳;23、进风板;24、第二通风道;25、通孔;26、弧形大槽孔;3、定子线圈组件;31、定子线圈外壳;32、线圈柱;33、第三通风道;34、连接板;4、第一高速轴承;5、第二高速轴承;6、第三高速轴承;7、轴杆;8、扇叶;9、第一通风道;10、电机导线。
具体实施方式
下面将结合本实用新型实施例中的附图,对本实用新型实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本实用新型一部分实施例,而不是全部的实施例。基于本实用新型中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本实用新型保护的范围。
请参阅图1-5,本实用新型提供一种双通道螺旋式高效散热电机结构技术方案:一种双通道螺旋式高效散热电机结构,包括进气导流底座1,进气导流底座1的顶部套接有散热组件2,散热组件2的内部卡合有定子线圈组件3,进气导流底座1、散热组件2和定子线圈组件3的内部分别固定安装有第一高速轴承4、第三高速轴承6和第二高速轴承5,第一高速轴承4、第二高速轴承5和第三高速轴承6的内部共同贯穿有轴杆7,轴杆7的顶部套接有扇叶8。进气导流底座1的顶部开设有若干组与第三通风道33相对应的第一通风道9,每两个第一通风道9之间均贯穿有一根电机导线10,电机导线10的 顶部贯穿在连接板34的内部,电机导线10与外部的电源电性连接。
请参阅图6,散热组件2包括电机外套壳21和内壳22,内壳22和电机外套壳21共同通过若干组等距离且呈圆周状分布的进风板23形成固定连接结构,进风板23的整体呈倾斜状,内壳22的顶部中心处开设有通孔25,内壳22的顶部且位于通孔25的外侧开设有若干组等距离的弧形大槽孔26,每两个进风板23之间均设有第二通风道24,第二通风道24的出风口与扇叶8的风流方向相同,本结构通过采用双通道螺旋式的设计,在使用时,可令第二通风道24的出风口与扇叶8的风流呈顺势状态,最后使风从弧形大槽孔26处排出,进一步增加了与风的接触面积,使散热更加高效迅速。
请参阅图7,定子线圈组件3包括卡合在内壳22内部的定子线圈外壳31,定子线圈外壳31的内壁固定安装有若干组等距离且呈圆周状分布的线圈柱32,线圈柱32的内侧为弧形结构,每两个线圈柱32之间均设有第三通风道33,定子线圈外壳31的底部固定安装有若干组与电机导线10相对应的连接板34。
本实用新型的工作原理:在使用时,给电机导线10通电,可带动扇叶8旋转,而外部的风则会分别从第一通风道9和第二通风道24处进入,此时,进入到第一通风道9中的风,则会继续沿着第三通风道33的方向流动,最后从而弧形大槽孔26处排出,并与第二通风道24中流动的风相汇合,因进风板23的整体呈倾斜状,第二通风道24的出风口与扇叶8的风流方向相同,所以,最终相汇合的风,则会统一集中从扇叶8之间的缝隙流动排出至外部,从而加快了风速, 保障了与风的接触面积,进一步提高了散热效率。

Claims (6)

  1. 一种双通道螺旋式高效散热电机结构,包括进气导流底座(1),其特征在于,所述进气导流底座(1)的顶部套接有散热组件(2),所述散热组件(2)的内部卡合有定子线圈组件(3),所述进气导流底座(1)、散热组件(2)和定子线圈组件(3)的内部分别固定安装有第一高速轴承(4)、第三高速轴承(6)和第二高速轴承(5),所述第一高速轴承(4)、第二高速轴承(5)和第三高速轴承(6)的内部共同贯穿有轴杆(7),所述轴杆(7)的顶部套接有扇叶(8);
    所述散热组件(2)包括电机外套壳(21)和内壳(22),所述内壳(22)和电机外套壳(21)共同通过若干组等距离且呈圆周状分布的进风板(23)形成固定连接结构,所述进风板(23)的整体呈倾斜状,所述内壳(22)的顶部中心处开设有通孔(25),所述内壳(22)的顶部且位于通孔(25)的外侧开设有若干组等距离的弧形大槽孔(26)。
  2. 根据权利要求1所述的一种双通道螺旋式高效散热电机结构,其特征在于,所述定子线圈组件(3)包括卡合在内壳(22)内部的定子线圈外壳(31),所述定子线圈外壳(31)的内壁固定安装有若干组等距离且呈圆周状分布的线圈柱(32),每两个所述线圈柱(32)之间均设有第三通风道(33)。
  3. 根据权利要求2所述的一种双通道螺旋式高效散热电机结构,其特征在于,所述进气导流底座(1)的顶部开设有若干组与第三通风道(33)相对应的第一通风道(9),每两个所述第一通风道(9)之间均贯穿有一根电机导线(10)。
  4. 根据权利要求1所述的一种双通道螺旋式高效散热电机结构,其特征在于,每两个所述进风板(23)之间均设有第二通风道(24),所述第二通风道(24)的出风口与扇叶(8)的风流方向相同。
  5. 根据权利要求2所述的一种双通道螺旋式高效散热电机结构,其特征在于,所述定子线圈外壳(31)的底部固定安装有若干组与电机导线(10)相对应的连接板(34)。
  6. 根据权利要求5所述的一种双通道螺旋式高效散热电机结构,其特征在于,所述电机导线(10)的顶部贯穿在连接板(34)的内部,所述线圈柱(32)的内侧为弧形结构。
PCT/CN2021/128822 2021-08-11 2021-11-04 一种双通道螺旋式高效散热电机结构 WO2023015750A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202121872919 2021-08-11
CN202121872919.1 2021-08-11

Publications (1)

Publication Number Publication Date
WO2023015750A1 true WO2023015750A1 (zh) 2023-02-16

Family

ID=80351969

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/128822 WO2023015750A1 (zh) 2021-08-11 2021-11-04 一种双通道螺旋式高效散热电机结构

Country Status (2)

Country Link
JP (1) JP3236643U (zh)
WO (1) WO2023015750A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117948412A (zh) * 2024-03-27 2024-04-30 江苏华诚自动化设备有限公司 一种减速机外置高效散热风叶

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105634210A (zh) * 2016-03-17 2016-06-01 冯亮 采用轴流通风实现定子封闭与转子开放通风方式的电动机
CN110943567A (zh) * 2020-01-15 2020-03-31 江苏阿萨普智能科技有限公司 一种具有双风道降温抗磁场的小马达
CN210569202U (zh) * 2019-08-05 2020-05-19 广州奥斯德科技有限公司 一种电磁热风装置
CN212572229U (zh) * 2020-05-14 2021-02-19 深圳市二方电子有限公司 一种无刷电机
CN112524066A (zh) * 2020-12-15 2021-03-19 稻津电机(珠海)有限公司 一种小型高速风机
US20210167660A1 (en) * 2019-12-03 2021-06-03 China Drive Motors (Shenzhen) Co., Ltd. High-speed Fan Motor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105634210A (zh) * 2016-03-17 2016-06-01 冯亮 采用轴流通风实现定子封闭与转子开放通风方式的电动机
CN210569202U (zh) * 2019-08-05 2020-05-19 广州奥斯德科技有限公司 一种电磁热风装置
US20210167660A1 (en) * 2019-12-03 2021-06-03 China Drive Motors (Shenzhen) Co., Ltd. High-speed Fan Motor
CN110943567A (zh) * 2020-01-15 2020-03-31 江苏阿萨普智能科技有限公司 一种具有双风道降温抗磁场的小马达
CN212572229U (zh) * 2020-05-14 2021-02-19 深圳市二方电子有限公司 一种无刷电机
CN112524066A (zh) * 2020-12-15 2021-03-19 稻津电机(珠海)有限公司 一种小型高速风机

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117948412A (zh) * 2024-03-27 2024-04-30 江苏华诚自动化设备有限公司 一种减速机外置高效散热风叶

Also Published As

Publication number Publication date
JP3236643U (ja) 2022-03-04

Similar Documents

Publication Publication Date Title
CN101136567A (zh) 一种低噪声高效率电机
WO2023015750A1 (zh) 一种双通道螺旋式高效散热电机结构
TW201711351A (zh) 馬達之散熱結構
CN103427557A (zh) 磁悬浮永磁同步大功率高速风机
CN207111476U (zh) 具有低噪音高效风扇的永磁电机
WO2023097845A1 (zh) 一种全封闭自通风式电机冷却结构
CN207513901U (zh) 一种散热效果好的离心风机
CN108286523B (zh) 一种永磁电动机直接驱动的高速离心泵
CN206099654U (zh) 带风扇组件的转子及无刷直流电机
CN219643715U (zh) 发电机双风道散热结构
CN208923982U (zh) 一种风冷散热微型电机
CN210579876U (zh) 变频一体机风冷装置
CN110649766A (zh) 一种双吸分流式超高效电机
CN203707998U (zh) 一种风冷散热的串激马达
CN116658440A (zh) 一种适用于水冷燃料电池的微型空压机
CN214850855U (zh) 一种带散热结构的电机
CN213754285U (zh) 一种自带调速功能的电机
CN115714506A (zh) 一种风冷电机的气道式冷却装置
CN205231911U (zh) 潜水泵用散热电机
CN211744252U (zh) 一种电机冷却结构、电机及汽车
CN107218234A (zh) 应用于永磁电机的低噪音高效风扇
CN112524066A (zh) 一种小型高速风机
CN206694281U (zh) 一种自冷式风机
CN111005885A (zh) 一种新型高速风机结构
CN110855080A (zh) 一种五相异步感应电机的通风散热系统

Legal Events

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

Ref document number: 21953355

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE