WO2020258738A1 - 一种集成式风冷结构和集成式bsg系统 - Google Patents

一种集成式风冷结构和集成式bsg系统 Download PDF

Info

Publication number
WO2020258738A1
WO2020258738A1 PCT/CN2019/123958 CN2019123958W WO2020258738A1 WO 2020258738 A1 WO2020258738 A1 WO 2020258738A1 CN 2019123958 W CN2019123958 W CN 2019123958W WO 2020258738 A1 WO2020258738 A1 WO 2020258738A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat sink
end plate
air
heat dissipation
shell
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2019/123958
Other languages
English (en)
French (fr)
Inventor
焦兵锋
汤勇
刘自文
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhongshan Broad Ocean Motor Co Ltd
Original Assignee
Zhongshan Broad Ocean Motor Co Ltd
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 Zhongshan Broad Ocean Motor Co Ltd filed Critical Zhongshan Broad Ocean Motor Co Ltd
Publication of WO2020258738A1 publication Critical patent/WO2020258738A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • 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
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • 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
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating

Definitions

  • the utility model relates to an integrated air cooling structure and an integrated BSG system.
  • the general integrated BSG system actually has two functions, both as a starter and as a generator.
  • BSG drives the engine through a pulley to start the engine. It is often used to temporarily turn off the engine when waiting for a traffic light. When the light turns green, BSG quickly starts the engine and the car can run normally; when used as a generator, the engine drives the BSG through the pulley to generate electricity , Often used in energy recovery when the car is braking or going downhill.
  • the power density of the integrated BSG system is one of its core product competitiveness.
  • BSG motors and BSG controllers are required to be as small as possible and output power as large as possible, which puts forward higher requirements on the heat dissipation performance of the cooling structure of the BSG motor. If the heat cannot be dissipated in time, the integrated BSG system will not work properly.
  • the cooling structure of the traditional belt-driven Starter Generator is shown in Figure 1, Figure 2, and Figure 3, including the stator assembly 1A, the rotor assembly 2A, the front end cover 3A, and the rear end cover 4A.
  • An air inlet 41A is provided in the middle of the bottom end plate of the rear end cover 4A, and an air outlet 42A is provided outside the edge of the rear end cover 4A.
  • the cold air flow enters the heat dissipation channel 72A into the air inlet 41A of the rear end cover 4A, and then from the air outlet 42A is discharged.
  • This kind of heat dissipation structure is bulky, complex, and poor in heat dissipation capacity. As a result, the heat cannot be dissipated in time, and the BSG system will not work normally.
  • the purpose of the utility model is to provide an integrated air-cooled structure and an integrated BSG system to solve the technical problem that the traditional heat dissipation capacity in the prior art is poor and the heat cannot be lost in time.
  • An integrated air-cooled structure including a casing, a centrifugal wind wheel and a rotating shaft.
  • a housing cavity is formed in the housing.
  • the centrifugal wind wheel is installed in the housing cavity.
  • the centrifugal wind wheel is installed on the rotating shaft.
  • the rotating shaft drives the centrifugal wind wheel to rotate.
  • the body is provided with an air inlet and an air outlet, the air inlet and the air outlet are connected to the containing cavity; the outer circumference of the shell is equipped with high-power devices, and the heat generated by the high-power devices is transferred to the shell through contact and taken away, and cold air flows in from the air inlet Contact with the inner surface of the shell takes away heat and flows out from the air outlet.
  • the above-mentioned enhanced heat dissipation structure protrudes on the inner surface of the casing.
  • the above-mentioned housing includes a heat sink end plate and a shell.
  • the outer side of the heat sink end plate is equipped with high-power devices.
  • the inner side of the heat sink end plate is protrudingly arranged with an enhanced heat dissipation structure, and the enhanced heat dissipation structure is a plurality of heat dissipation columns.
  • the heat generated by the high-power device is taken away through the heat sink end plate; cold air flows from the air inlet into contact with the inner surface of the heat sink end plate and a number of heat dissipation columns to take away the heat and flow out from the air outlet.
  • the above-mentioned shell includes a heat sink end plate and a shell.
  • the outer peripheral surface of the shell is equipped with high-power devices, and the inner surface of the shell is protrudingly arranged with an enhanced heat dissipation structure.
  • the enhanced heat dissipation structure is a plurality of heat dissipation columns.
  • baffle is also arranged in the containing cavity, and the baffle separates the air inlet and the air outlet and forms a flow guiding function.
  • the above-mentioned baffle is formed protruding from the inner surface of the end plate of the heat sink.
  • the above-mentioned air inlet and air outlet are arranged side by side and separated by a baffle to form a C-shaped air flow channel.
  • the above-mentioned centrifugal wind wheel includes a top wheel disk and a number of wind blades installed on the edge of the top wheel disk.
  • a shaft hole is arranged in the middle of the top wheel disk.
  • the top wheel disk is installed on the rotating shaft by using the shaft hole.
  • the axis of the disk is distributed at intervals in the circumferential direction.
  • Several wind blades enclose an inner cavity, some of the radiating columns extend into the cavity, and the remaining radiating columns are located on the periphery of the several wind blades, forming a non-radiating column on the inner surface of the heat sink end plate In the area, the bottom ends of several wind blades are placed inside the area and close to the inner side of the heat sink end plate.
  • a bearing seat protrudes between the inner side surfaces of the heat sink end plates, a bearing is installed in the bearing seat, and the tail end of the rotating shaft is installed and supported on the bearing.
  • the outer peripheral surface of the above-mentioned bearing seat is tangent to the deflector, and the deflector is provided with a gap so that the wind blade can pass through the gap.
  • the above-mentioned housing includes an outer peripheral surface and a top surface.
  • the outer peripheral surface, the top surface and the heat sink end plate are installed together to form a containing cavity, the top surface is provided with a circular hole, and the top wheel is nested in the circular hole.
  • the cross-sectional shape of the aforementioned heat dissipation column is circular.
  • An integrated BSG system including stator assembly, rotor assembly, front end cover, rear end cover, rotating shaft, belt pulley and BSG controller.
  • Bearings are installed in the bearing housings on the front end cover and the back end cover, and the rotating shaft is supported on the bearings.
  • the shaft extension end of the rotating shaft extends out of the front end cover and the pulley is installed, the rotor assembly is installed on the rotating shaft, the rotor assembly is sleeved in the stator assembly, and the stator assembly is installed on the front end cover and the rear end cover, characterized in that: the rear end
  • the cover includes a heat sink end plate and a shell protruding axially from the edge of the heat sink end plate.
  • the top of the shell is sleeved on the periphery of the stator assembly.
  • the heat sink end plate and the cylindrical shell form a receiving cavity below the stator assembly.
  • the BSG controller is installed on the outer side of the sink end plate, the inner surface of the heat sink end plate protrudes axially from the bearing seat, and a number of heat dissipation columns protrude axially from the inner side of the heat sink end plate on the periphery of the bearing seat, which is generated by the BSG controller
  • the heat is taken away through the end plate of the heat sink; the heat dissipation column extends into the accommodating cavity, and the outer peripheral surface of the shell is provided with an air inlet and an air outlet, and the air inlet and air outlet are connected to the accommodating cavity; the centrifugal wind wheel is placed in the accommodating cavity, When the wind wheel rotates, cold air flows from the air inlet into contact with the inner surface of the heat sink end plate and a number of heat dissipation columns to take away heat
  • baffle is also arranged in the containing cavity, and the baffle separates the air inlet and the air outlet and forms a flow guiding function.
  • the aforementioned baffle is formed by protruding the inner surface of the end plate of the heat sink.
  • the above-mentioned centrifugal wind wheel includes a top wheel disk and several wind blades installed on the edge of the top wheel disk.
  • a shaft hole is arranged in the middle of the top wheel disk.
  • the top wheel disk is installed on the rotating shaft by using the shaft hole.
  • the axis is distributed at intervals in the circumferential direction.
  • Several wind blades enclose an inner cavity, some of the heat dissipation pillars extend into the cavity, and the other heat dissipation pillars are located on the periphery of the plurality of wind blades, forming an area without heat dissipation pillars on the inner side of the heat sink end plate ,
  • the bottom ends of several wind blades are placed in the area and close to the inner side of the heat sink end plate.
  • the outer peripheral surface of the above-mentioned bearing seat is tangent to the deflector, and the deflector is provided with a gap so that the wind blade can pass through the gap.
  • the cross-sectional shape of the aforementioned heat dissipation column is circular.
  • This utility model uses the centrifugal wind wheel and the enhanced heat dissipation structure inside the shell to improve the cooling capacity of the heat dissipation structure to the power device in the same space. After verification by simulation calculation, the thermal resistance between the power device and the environment can be reduced. % To 20%.
  • Figure 1 is a perspective view of a traditional integrated BSG system
  • Figure 2 is an exploded view of the traditional integrated BSG system
  • Figure 3 is a structural cross-sectional view of a traditional integrated BSG system
  • Figure 4 is a perspective view of the first embodiment of the utility model
  • Figure 5 is a front view of the first embodiment of the utility model
  • Figure 6 is a cross-sectional view of Figure 5 A-A;
  • Figure 7 is a B-B cross-sectional view of Figure 5;
  • Figure 8 is a perspective view from one angle of the first embodiment of the present utility model
  • Figure 9 is a perspective view from another angle of the first embodiment of the utility model.
  • Figure 10 is a schematic diagram of the second embodiment of the utility model
  • Figure 11 is a perspective view of the third embodiment of the utility model
  • Figure 12 is a front view of the third embodiment of the utility model
  • Figure 13 is a cross-sectional view of Figure 12 C-C;
  • Figure 14 is a cross-sectional view of Figure 13 D-D;
  • Figure 15 is a perspective view of the third embodiment of the utility model from one angle
  • Figure 16 is another perspective view of the third embodiment of the present invention.
  • this embodiment provides an integrated air-cooled structure, which includes a housing, a centrifugal wind wheel 3 and a rotating shaft 7.
  • a housing cavity 10 is formed in the housing, and the centrifugal wind wheel 3 is installed in the housing.
  • the driving centrifugal wind wheel 3 is installed on the rotating shaft 7, and the rotating shaft 7 drives the centrifugal wind wheel 3 to rotate.
  • the housing is provided with an air inlet 42 and an air outlet 43, and the air inlet 42 and the air outlet 43 are in communication with the containing cavity 10;
  • High-power device 1 is installed on the outer peripheral surface of the body. The heat generated by the high-power device 1 is taken away through the shell. Cold air flows from the air inlet 42 into contact with the inner surface of the shell to take away the heat and flows out from the air outlet 43.
  • the above-mentioned protruding and strengthening heat dissipation structure on the inner surface of the housing can improve the heat dissipation capacity.
  • the housing includes a heat sink end plate 2 and a shell 4.
  • the outer side 21 of the heat sink end plate 2 is equipped with a high-power device 1, and the inner side 22 of the heat sink end plate 2 is protrudingly arranged with a reinforced heat dissipation structure.
  • the heat dissipation structure is a number of heat dissipation pillars 6, the heat generated by the high-power device 1 is taken away by the heat sink end plate 2; cold air flows from the air inlet 42 into contact with the inner surface 22 of the heat sink end plate 2 and a number of heat dissipation pillars 6 to take away the heat. It flows out from the air outlet 43, has a simple structure and a reasonable layout, and the high-power device 1 is easy to install.
  • a number of heat dissipation pillars 6 are arranged in an array and arranged at intervals.
  • the working principle of the utility model the outer side 21 of the heat sink end plate 2 is closely installed with the high-power device 1, a large amount of heat of the high-power device 1 is transferred to the heat sink end plate 2 through contact, and the rotating shaft 7 drives the centrifugal wind wheel 3 during operation.
  • the centrifugal wind wheel 3 drives the cold air from the air inlet 42 to flow into contact with the inner surface 22 of the heat sink end plate 2 and a number of heat dissipation columns 6 to take away the heat and flow out from the air outlet 43;
  • the utility model can be in the same BSG end space Internally, the cooling capacity of the heat dissipation structure to the power device is improved.
  • the simulation calculation verifies that the thermal resistance between the power device and the environment can be reduced by 10% to 20%.
  • the high-power device 1 includes, but is not limited to, insulated gate bipolar transistor (IGBT) modules, integrated circuits, thyristors, or other electronic devices that generate heat during operation.
  • IGBT insulated gate bipolar transistor
  • the connecting holes and sealing labyrinth structure in the structure, or any other suitable connection fastening mechanism and sealing measures are not shown in the schematic diagram.
  • baffle plate 5 is also arranged in the containing cavity 10, and the baffle plate 5 separates the air inlet 42 and the air outlet 43 and forms a flow guiding function, which is beneficial to improve the heat dissipation capacity.
  • the above-mentioned deflector 5 is formed by protruding the inner surface 22 of the heat sink end plate 2, and the structure is simple and reasonable.
  • the above-mentioned air inlet 42 and air outlet 43 are arranged side by side and separated by the baffle 5 to form a C-shaped air flow channel, which is beneficial to the directional flow of air flow, and the structure is simple and reasonable.
  • the above-mentioned centrifugal wind wheel 3 includes a top wheel 31 and a number of wind blades 32 mounted on the edge of the top wheel 31.
  • a shaft hole 311 is provided in the middle of the top wheel disk 31.
  • the top wheel disk 31 is installed on the rotating shaft 7 by using the shaft hole 311.
  • a number of wind blades 32 are circumferentially spaced along the axis of the top wheel disk 31.
  • a number of wind blades 32 enclose an inner cavity 33.
  • a part of the heat dissipation pillars 6 extend into the cavity 33, and the remaining heat dissipation pillars 6 are located in the middle of the plurality of wind blades 32.
  • an area 34 without the heat sink 6 is formed on the inner surface 22 of the heat sink end plate 2.
  • the bottom ends 321 of a number of wind blades 32 are placed in the area 34 and close to the inner surface 22 of the heat sink end plate 2.
  • a bearing seat 35 protrudes from the inner side surface 22 of the heat sink end plate 2 as described above.
  • a bearing 36 is installed in the bearing seat 35, and the tail end of the rotating shaft 7 is installed and supported on the bearing 36, which is convenient for installation and simple in structure.
  • the outer peripheral surface of the aforementioned bearing seat 35 is tangent to the deflector 5, and a notch 51 is provided on the deflector 5 so that the wind blade 32 passes through the notch 51, which is beneficial to the smooth flow of the airflow.
  • the above-mentioned housing 4 includes an outer circumferential surface 41 and a top surface 45.
  • the outer circumferential surface 41, the top surface 45 and the heat sink end plate 2 are installed together to form a receiving cavity 10, the top surface 45 is provided with a circular hole 46, and the top wheel 31 is nested Inside the round hole 46.
  • the structure is simple and the layout is reasonable, which is beneficial to strengthen heat dissipation.
  • the cross-sectional shape of the above-mentioned heat dissipation column 6 is circular, which is more conducive to the flow of air flow and increase the contact area with cold air, thereby improving the heat dissipation capacity.
  • this embodiment is a structural change made on the basis of the first embodiment, that is, the housing includes a heat sink end plate 2 and a housing 4, and the outer peripheral surface 41 of the housing 4 is equipped with a high-power device 1.
  • An enhanced heat dissipation structure is arranged protrudingly on the inner surface 44 of the housing 4, and the enhanced heat dissipation structure is a plurality of heat dissipation pillars 6.
  • the high-power device 1 can also be installed on the housing 4.
  • fins or spoiler posts or other heat transfer enhancement measures can be used to increase the heat dissipation effect. Not drawn.
  • an integrated BSG system includes a stator assembly 100, a rotor assembly 200, a front cover 300, a rear cover 400, a shaft 7, a pulley 500 and a BSG controller 1c, a front cover 300 and a rear
  • a bearing 36 is installed in the bearing seat 35 on the end cover 400.
  • the rotating shaft 7 is supported and mounted on the bearing 36.
  • the shaft extension 71 of the rotating shaft 7 extends out of the front cover 300 and installs the pulley 500.
  • the rotor assembly 200 is installed on the rotating shaft 7.
  • the assembly 200 is sleeved in the stator assembly 100.
  • the stator assembly 100 is installed on the front cover 300 and the rear cover 400.
  • the rear cover 400 includes a heat sink end plate 2 and an axially protruding edge of the heat sink end plate 2 Shell 4, the top of the shell 4 is sleeved on the periphery of the stator assembly 100, and the accommodating cavity 10 is enclosed by the heat sink end plate 2 and the cylindrical shell 4 under the stator assembly 100.
  • the outer side 21 of the heat sink end plate 2 is installed with BSG control
  • the inner surface 22 of the heat sink end plate 2 axially protrudes from the bearing seat 35 in the middle of the inner surface 22 of the heat sink end plate 2 and a number of radiating columns 6 protrude axially from the inner surface 22 of the heat sink end plate 2 on the periphery of the bearing seat 35.
  • the BSG controller 1c generates The heat is taken away through the heat sink end plate 2; the heat sink end plate 2 and the shell 4 are made of metal to facilitate heat dissipation and contact heat conduction.
  • the heat dissipation column 6 extends into the containing cavity 10, the outer peripheral surface 41 of the housing 4 is provided with an air inlet 42 and an air outlet 43, and the air inlet 42 and the air outlet 43 are in communication with the containing cavity 10;
  • the centrifugal wind wheel 3 is placed in the accommodating cavity 10. When the centrifugal wind wheel 3 rotates, cold air flows from the air inlet 42 into contact with the inner side surface 22 of the heat sink end plate 2 and a number of heat dissipation columns 6 to take away heat and flow out from the air outlet 43;
  • the centrifugal wind wheel 3 is installed on a rotating shaft 7, and the rotating shaft 7 is used to drive the centrifugal wind wheel 3 to rotate.
  • baffle plate 5 is also arranged in the containing cavity 10, and the baffle plate 5 separates the air inlet 42 and the air outlet 43 and forms a flow guiding function.
  • the above-mentioned baffle 5 is formed by protruding the inner surface 22 of the heat sink end plate 2.
  • the above-mentioned centrifugal wind wheel 3 includes a top wheel 31 and a number of wind blades 32 mounted on the edge of the top wheel 31.
  • a shaft hole 311 is provided in the middle of the top wheel disk 31.
  • the top wheel disk 31 is installed on the rotating shaft 7 by using the shaft hole 311.
  • a number of wind blades 32 are circumferentially spaced along the axis of the top wheel disk 31.
  • a number of wind blades 32 enclose an inner cavity 33.
  • a part of the heat dissipation pillars 6 extend into the cavity 33, and the remaining heat dissipation pillars 6 are located in the middle of the plurality of wind blades 32.
  • an area 34 without the heat sink 6 is formed on the inner surface 22 of the heat sink end plate 2.
  • the bottom ends 321 of a number of wind blades 32 are placed in the area 34 and close to the inner surface 22 of the heat sink end plate 2.
  • the outer peripheral surface of the above-mentioned bearing seat 35 is tangent to the deflector 5, and the deflector 5 is provided with a notch 51 for the wind blade 32 to pass through the notch 51, which is beneficial to the smooth flow of airflow.
  • the cross-sectional shape of the above-mentioned heat dissipation column 6 is circular, which is more conducive to the flow of air flow and increase the contact area with cold air, thereby improving the heat dissipation capacity.
  • the working principle of the utility model the outer side 21 of the heat sink end plate 2 is closely installed with the high-power device 1, a large amount of heat of the high-power device 1 is transferred to the heat sink end plate 2 through contact, and the rotating shaft 7 drives the centrifugal wind wheel 3 during operation.
  • the centrifugal wind wheel 3 drives the cold air from the air inlet 42 to flow into contact with the inner surface 22 of the heat sink end plate 2 and a number of heat dissipation columns 6 to take away the heat and flow out from the air outlet 43;
  • the utility model can be in the same BSG end space Internally, the cooling capacity of the heat dissipation structure to the power device is improved.
  • the simulation calculation verifies that the thermal resistance between the power device and the environment can be reduced by 10% to 20%.
  • the high-power device 1 includes, but is not limited to, insulated gate bipolar transistor (IGBT) modules, integrated circuits, thyristors, or other electronic devices that generate heat during operation.
  • IGBT insulated gate bipolar transistor
  • the connecting holes and sealing labyrinth structure in the structure, or any other suitable connection fastening mechanism and sealing measures are not shown in the schematic diagram.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

一种集成式风冷结构和集成式BSG系统，所述的集成式风冷结构包括壳体、离心风轮（3）和转轴（7），壳体里面形成容纳腔（10），离心风轮（3）安装在容纳腔（10）里面，离心风轮（3）安装在转轴（7）上，转轴（7）驱动离心风轮（3）转动，壳体上设置空气入口（42）和空气出口（43），空气入口（42）和空气出口（43）与容纳腔（10）连通；壳体的外周面安装大功率器件（1），大功率器件（1）产生的热量通过接触传递到壳体带走，冷空气从空气入口（42）流入与壳体内表面接触带走热量并从空气出口（43）流出。它在相同的空间内，提高散热结构对功率器件的冷却能力，经仿真计算验证，可以降低功率器件与环境间的热阻10％到20％。

Description

一种集成式风冷结构和集成式BSG系统 技术领域：
本实用新型涉及一种集成式风冷结构和集成式BSG系统。
背景技术：
一般的集成式BSG系统实际上有两种功能，既可以做启动机，又可以做发电机。做启动机时，BSG通过皮带轮带动引擎从而启动引擎，常应用于等红绿灯时先临时引擎熄火，变绿灯时BSG快速起动引擎，汽车可以正常行驶；做发电机时，引擎通过皮带轮带动BSG进行发电，常应用于汽车刹车或下坡时的能量回收。
集成式BSG系统的功率密度作为其核心商品竞争力之一，要求BSG电机和BSG控制器的体积尽量小，输出功率尽量大，这对BSG电机的冷却结构的散热性能提出了更高的要求。如果热量无法及时散失，则集成式BSG系统将无法正常工作。
传统的皮带驱动启动发电一体化电机(Belt-driven Starter Generator,BSG)的冷却结构见图1、图2、图3所示，包括定子组件1A、转子组件2A、前端盖3A、后端盖4A、转轴5A、皮带轮6A和BSG控制器7A，在BSG控制器7A的表面上设置若干散热筋71A，在相邻散热筋71A之间形成散热通道72A，在转子组件2A的底部设置散热风扇21A,后端盖4A的底端板中间设置进气孔41A，在后端盖4A的边缘外侧设置出气孔42A，冷空气流进入散热通道72A进入后端盖4A的进气孔41A，然后从出气孔42A排出，这种散热结构体积大，结构复杂，散热能力差，导致热量无法及时散失，则BSG系统将无法正常工作。
发明内容：
本实用新型的目的是提供一种集成式风冷结构和集成式BSG系统，解决现有技术中传统的散热能力差，导致热量无法及时散失的技术问题。
本实用新型的目的是通过下述技术方案予以实现的：
一种集成式风冷结构，包括壳体、离心风轮和转轴，壳体里面形成容纳腔，离心风轮安装在容纳腔里面，离心风轮安装在转轴上，转轴驱动离心风轮转动，壳体上设置空气入口和空气出口，空气入口和空气出口与容纳腔连通；壳体的 外周面安装大功率器件，大功率器件产生的热量通过接触传递到壳体带走，冷空气从空气入口流入与壳体内表面接触带走热量并从空气出口流出。
上述在壳体内表面凸出强化散热结构。
上述所述的壳体包括热沉端板和外壳，热沉端板的外侧面安装大功率器件，热沉端板内侧面凸出布置有强化散热结构，所述的强化散热结构是若干散热柱，大功率器件产生的热量通过热沉端板带走；冷空气从空气入口流入与热沉端板内侧面和若干散热柱接触带走热量并从空气出口流出。
上述所述的壳体包括热沉端板和外壳，外壳的外周面安装大功率器件，外壳的内表面凸出布置有强化散热结构，所述的强化散热结构是若干散热柱。
上述在容纳腔里面还布置有导流板，导流板分隔开空气入口和空气出口并形成导流作用。
上述的导流板是从热沉端板内侧面凸出形成。
上述所述的空气入口和空气出口并排起来并由导流板分隔形成C形的空气流道。
上述所述的离心风轮包括顶轮盘和安装在顶轮盘边缘的若干风叶片，顶轮盘中间设置有轴孔，顶轮盘利用轴孔安装在转轴上，若干风叶片沿着顶轮盘的轴线周向间隔分布，若干风叶片围成内侧空腔，一部分散热柱伸入到空腔里面，其余散热柱位于若干风叶片的外围，在热沉端板内侧面形成一个没有散热柱的区域，若干风叶片的底端置于区域里面并贴近热沉端板的内侧面。
上述在热沉端板的内侧面之间凸出有一个轴承座，轴承座里面安装轴承，转轴的尾端安装支承在轴承上。
上述的轴承座的外周面与导流板相切，导流板上设置缺口以便风叶片从缺口穿过。
上述的外壳包括外周面和顶面，外周面、顶面与热沉端板安装在一起形成一容纳腔，顶面开有圆孔，顶轮盘嵌套在圆孔里面。
上述的散热柱截面形状是圆形。
一种集成式BSG系统，包括定子组件、转子组件、前端盖、后端盖、转轴、皮带轮和BSG控制器，前端盖和后端盖上的轴承座里面安装有轴承，转轴支承安装在轴承上，转轴的轴伸端伸出前端盖并安装皮带轮，转子组件安装在转轴上，转子组件套在定子组件里面，定子组件安装在前端盖和后端盖上，其特征在于：所述的后端盖包括热沉端板和从热沉端板边缘轴向凸出的外壳，外壳的顶端套装在定子组件的外围，在定子组件的下方由热沉端板和圆筒外壳围成容纳腔，热沉端板的外侧面安装BSG控制器，热沉端板内侧面中间轴向凸出轴承座，在轴承座的外围热沉端板的内侧面轴向凸出若干散热柱，BSG控制器产生的热量通过热沉端板带走；散热柱伸入到容纳腔里面，外壳的外周面设置有空气入口和空气出口，空气入口和空气出口与容纳腔连通；离心风轮置于容纳腔里面，离心风轮转动时，冷空气从空气入口流入与热沉端板内侧面和若干散热柱接触带走热量并从空气出口流出；离心风轮安装在转轴上，转轴用于驱动离心风轮转动。
上述在容纳腔里面还布置有导流板，导流板分隔开空气入口和空气出口并形成导流作用。
上述的导流板是热沉端板内侧面凸出形成。
上述的离心风轮包括顶轮盘和安装在顶轮盘边缘的若干风叶片，顶轮盘中间设置有轴孔，顶轮盘利用轴孔安装在转轴上，若干风叶片沿着顶轮盘的轴线周向间隔分布，若干风叶片围成内侧空腔，一部分散热柱伸入到空腔里面，其余散热柱位于若干风叶片的外围，在热沉端板的内侧面形成一个没有散热柱的区域，若干风叶片的底端置于区域里面并贴近热沉端板的内侧面。
上述的轴承座的外周面与导流板相切，导流板上设置缺口以便风叶片从缺口穿过。
上述的散热柱截面形状是圆形。
本实用新型与现有技术相比，具有如下效果：
1)本实用新型利用离心风轮和壳体内部的强化散热结构，在相同的空间 内，提高散热结构对功率器件的冷却能力，经仿真计算验证，可以降低功率器件与环境间的热阻10％到20％。
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是传统的集成式BSG系统的立体图；
图2是传统的集成式BSG系统的分解图；
图3传统的集成式BSG系统的结构剖视图；
图4是本实用新型实施例一的立体图；
图5是本实用新型实施例一的主视图；
图6是图5的A—A剖视图；
图7是图5的B—B剖视图；
图8是本实用新型实施例一的一个角度的立体图；
图9是本实用新型实施例一的另一个角度的立体图；
图10是本实用新型实施例二的结构示意图；
图11是本实用新型实施例三的立体图；
图12是本实用新型实施例三的主视图；
图13是图12的C—C剖视图；
图14是图13的D—D剖视图；
图15是本实用新型实施例三的一个角度的立体图；
图16是本实用新型实施例三的另一个角度的立体图。
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4至图9所示，本实施例提供的是一种集成式风冷结构，包括壳体、离心风轮3和转轴7，壳体里面形成容纳腔10，离心风轮3安装在容纳腔10里面，驱动离心风轮3安装在转轴7上，转轴7驱动离心风轮3转动，壳体上设 置空气入口42和空气出口43，空气入口42和空气出口43与容纳腔10连通；壳体的外周面安装大功率器件1，大功率器件1产生的热量通过壳体带走，冷空气从空气入口42流入与壳体内表面接触带走热量并从空气出口43流出。
上述在壳体内表面凸出强化散热结构，可以提高散热能力。
所述的壳体包括热沉端板2和外壳4，热沉端板2的外侧面21安装大功率器件1，热沉端板2内侧面22凸出布置有强化散热结构，所述的强化散热结构是若干散热柱6，大功率器件1产生的热量通过热沉端板2带走；冷空气从空气入口42流入与热沉端板2内侧面22和若干散热柱6接触带走热量并从空气出口43流出，结构简单布局合理，大功率器件1安装方便。若干散热柱6阵列式间隔排列分布。
本实用新型的工作原理：热沉端板2的外侧面21贴紧安装大功率器件1，大功率器件1的大量热量通过接触传递到热沉端板2，工作时转轴7驱动离心风轮3转动，离心风轮3带动冷空气从空气入口42流入与热沉端板2内侧面22和若干散热柱6接触带走热量并从空气出口43流出；本实用新型能够在相同的BSG端部空间内，提高散热结构对功率器件的冷却能力，经仿真计算验证，可以降低功率器件与环境间的热阻10％到20％。大功率器件1包括但不限于绝缘栅双极晶体管(IGBT)模块、集成电路、晶闸管或其它在运行过程中产生热量的电子装置。结构中的连接孔和密封迷宫结构，或其它任意合适的连接紧固机制及密封措施在示意图中均未示出。
上述在容纳腔10里面还布置有导流板5，导流板5分隔开空气入口42和空气出口43并形成导流作用，有利于提高散热能力。
上述的导流板5是热沉端板2的内侧面22凸出形成，结构简单合理。
上述的空气入口42和空气出口43并排起来并由导流板5分隔形成C形的空气流道，有利于气流的定向流动，结构简单合理。
上述的离心风轮3包括顶轮盘31和安装在顶轮盘31边缘的若干风叶片32，顶轮盘31中间设置有轴孔311，顶轮盘31利用轴孔311安装在转轴7上，若干 风叶片32沿着顶轮盘31的轴线周向间隔分布，若干风叶片32围成内侧空腔33，一部分散热柱6伸入到空腔33里面，其余散热柱6位于若干风叶片32的外围，在热沉端板2内侧面22形成一个没有散热柱6的区域34，若干风叶片32的底端321置于区域34里面并贴近热沉端板2内侧面22，这种结构可以最大限度提高散热能力，且结构更加合理。
上述在热沉端板2内侧面22之间凸出有一个轴承座35，轴承座35里面安装轴承36，转轴7的尾端安装支承在轴承36上，安装方便，结构简单。
上述的轴承座35的外周面与导流板5相切，导流板5上设置缺口51以便风叶片32从缺口51穿过，有利于气流的流动顺畅。
上述的外壳4包括外周面41和顶面45，外周面41、顶面45与热沉端板2安装在一起形成一容纳腔10，顶面45开有圆孔46，顶轮盘31嵌套在圆孔46里面。结构简单，布局合理，有利于加强散热。
上述的散热柱6截面形状是圆形，更有利于气流的流动和提高与冷空气的接触面积，提高散热能力。
实施例二：
如图10所示，本实施例是在实施例一的基础上作出的结构变动，即所述的壳体包括热沉端板2和外壳4，外壳4的外周面41安装大功率器件1，外壳4的内表面44凸出布置有强化散热结构，所述的强化散热结构是若干散热柱6。
大功率器件1也可安装在外壳4上，在壳体内的正对大功率器件1的流道内侧，可以增设翅片或者扰流柱或使用其它强化传热措施，从而增加散热效果，图中没有画出。
实施例三：
如图11至图16所示，一种集成式BSG系统，包括定子组件100、转子组件200、前端盖300、后端盖400、转轴7、皮带轮500和BSG控制器1c，前端盖 300和后端盖400上的轴承座35里面安装有轴承36，转轴7支承安装在轴承36上，转轴7的轴伸端71伸出前端盖300并安装皮带轮500，转子组件200安装在转轴7上，转子组件200套在定子组件100里面，定子组件100安装在前端盖300和后端盖400上，所述的后端盖400包括热沉端板2和从热沉端板2边缘轴向凸出的外壳4，外壳4的顶端套装在定子组件100的外围，在定子组件100的下方由热沉端板2和圆筒外壳4围成容纳腔10，热沉端板2的外侧面21安装BSG控制器1c，热沉端板2的内侧面22中间轴向凸出轴承座35，在轴承座35的外围热沉端板2的内侧面22轴向凸出若干散热柱6，BSG控制器1c产生的热量通过热沉端板2带走；热沉端板2和外壳4是金属制造有利于散热和接触热传导。
散热柱6伸入到容纳腔10里面，外壳4的外周面41设置有空气入口42和空气出口43，空气入口42和空气出口43与容纳腔10连通；
离心风轮3置于容纳腔10里面，离心风轮3转动时，冷空气从空气入口42流入与热沉端板2内侧面22和若干散热柱6接触带走热量并从空气出口43流出；离心风轮3安装在转轴7上，转轴7用于驱动离心风轮3转动。
上述在容纳腔10里面还布置有导流板5，导流板5分隔开空气入口42和空气出口43并形成导流作用。
上述导流板5是热沉端板2内侧面22凸出形成。
上述的离心风轮3包括顶轮盘31和安装在顶轮盘31边缘的若干风叶片32，顶轮盘31中间设置有轴孔311，顶轮盘31利用轴孔311安装在转轴7上，若干风叶片32沿着顶轮盘31的轴线周向间隔分布，若干风叶片32围成内侧空腔33，一部分散热柱6伸入到空腔33里面，其余散热柱6位于若干风叶片32的外围，在热沉端板2内侧面22形成一个没有散热柱6的区域34，若干风叶片32的底端321置于区域34里面并贴近热沉端板2内侧面22，这种结构可以最大限度提高散热能力，且结构更加合理。
上述的轴承座35的外周面与导流板5相切，导流板5上设置缺口51以便 风叶片32从缺口51穿过，有利于气流的流动顺畅。
上述的散热柱6截面形状是圆形，更有利于气流的流动和提高与冷空气的接触面积，提高散热能力。
本实用新型的工作原理：热沉端板2的外侧面21贴紧安装大功率器件1，大功率器件1的大量热量通过接触传递到热沉端板2，工作时转轴7驱动离心风轮3转动，离心风轮3带动冷空气从空气入口42流入与热沉端板2内侧面22和若干散热柱6接触带走热量并从空气出口43流出；本实用新型能够在相同的BSG端部空间内，提高散热结构对功率器件的冷却能力，经仿真计算验证，可以降低功率器件与环境间的热阻10％到20％。大功率器件1包括但不限于绝缘栅双极晶体管(IGBT)模块、集成电路、晶闸管或其它在运行过程中产生热量的电子装置。结构中的连接孔和密封迷宫结构，或其它任意合适的连接紧固机制及密封措施在示意图中均未示出。
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 (18)

  1. 一种集成式风冷结构，其特征在于：它包括壳体、离心风轮(3)和转轴(7)，壳体里面形成容纳腔(10)，离心风轮(3)安装在容纳腔(10)里面，离心风轮(3)安装在转轴(7)上，转轴(7)驱动离心风轮(3)转动，壳体上设置空气入口(42)和空气出口(43)，空气入口(42)和空气出口(43)与容纳腔(10)连通；壳体的外周面安装大功率器件(1)，大功率器件(1)产生的热量通过接触传递到壳体带走，冷空气从空气入口(42)流入与壳体内表面接触带走热量并从空气出口(43)流出。
  2. 根据权利要求1所述的一种集成式风冷结构，其特征在于：在壳体内表面凸出强化散热结构。
  3. 根据权利要求2所述的一种集成式风冷结构，其特征在于：所述的壳体包括热沉端板(2)和外壳(4)，热沉端板(2)的外侧面(21)安装大功率器件(1)，热沉端板(2)内侧面(22)凸出布置有强化散热结构，所述的强化散热结构是若干散热柱(6)，大功率器件(1)产生的热量通过热沉端板(2)带走；冷空气从空气入口(42)流入与热沉端板(2)内侧面(22)和若干散热柱(6)接触带走热量并从空气出口(43)流出。
  4. 根据权利要求2所述的一种集成式风冷结构，其特征在于：所述的壳体包括热沉端板(2)和外壳(4)，外壳(4)的外周面(41)安装大功率器件(1)，外壳(4)的内表面(44)凸出布置有强化散热结构，所述的强化散热结构是若干散热柱(6)。
  5. 根据权利要求1或2或3或4所述的一种集成式风冷结构，其特征在于：在容纳腔(10)里面还布置有导流板(5)，导流板(5)分隔开空气入口(42)和空气出口(43)并形成导流作用。
  6. 根据权利要求5所述的一种集成式风冷结构，其特征在于：导流板(5)是从热沉端板(2)内侧面(22)凸出形成。
  7. 根据权利要求6所述的一种集成式风冷结构，其特征在于：空气入口(42) 和空气出口(43)并排起来并由导流板(5)分隔形成C形的空气流道。
  8. 根据权利要求5所述的一种集成式风冷结构，其特征在于：离心风轮(3)包括顶轮盘(31)和安装在顶轮盘(31)边缘的若干风叶片(32)，顶轮盘(31)中间设置有轴孔(311)，顶轮盘(31)利用轴孔(311)安装在转轴(7)上，若干风叶片(32)沿着顶轮盘(31)的轴线周向间隔分布，若干风叶片(32)围成内侧空腔(33)，一部分散热柱(6)伸入到空腔(33)里面，其余散热柱(6)位于若干风叶片(32)的外围，在热沉端板(2)内侧面(22)形成一个没有散热柱(6)的区域(34)，若干风叶片(32)的底端(321)置于区域(34)里面并贴近热沉端板(2)内侧面(22)。
  9. 根据权利要求8所述的一种集成式风冷结构，其特征在于：在热沉端板(2)内侧面(22)之间凸出有一个轴承座(35)，轴承座(35)里面安装轴承(36)，转轴(7)的尾端安装支承在轴承(36)上。
  10. 根据权利要求9所述的一种集成式风冷结构，其特征在于：轴承座(35)的外周面与导流板(5)相切，导流板(5)上设置缺口(51)以便风叶片(32)从缺口(51)穿过。
  11. 根据权利要求8所述的一种集成式风冷结构，其特征在于：外壳(4)包括外周面(41)和顶面(45)，外周面(41)、顶面(45)与热沉端板(2)安装在一起形成一容纳腔(10)，顶面(45)开有圆孔(46)，顶轮盘(31)嵌套在圆孔(46)里面。
  12. 根据权利要求8所述的一种集成式风冷结构，其特征在于：散热柱(6)截面形状是圆形。
  13. 一种集成式BSG系统，包括BSG电机和BSG控制器(1c)，BSG电机包括定子组件(100)、转子组件(200)、前端盖(300)、后端盖(400)、转轴(7)和皮带轮(500)，前端盖(300)和后端盖(400)上的轴承座(35)里面安装有轴承(36)，转轴(7)支承安装在轴承(36)上，转轴(7)的轴伸端(71)伸出前端盖(300)并安装皮带轮(500)，转子组件(200)安装在转轴(7)上，转子组件(200)套在定子组件(100)里 面，定子组件(100)安装在前端盖(300)和后端盖(400)上，其特征在于：
    所述的后端盖(400)包括热沉端板(2)和从热沉端板(2)边缘轴向凸出的外壳(4)，外壳(4)的顶端套装在定子组件(100)的外围，在定子组件(100)的下方由热沉端板(2)和圆筒外壳(4)围成容纳腔(10)，热沉端板(2)的外侧面(21)安装BSG控制器(1c)，热沉端板(2)的内侧面(22)中间轴向凸出轴承座(35)，在轴承座(35)的外围热沉端板(2)的内侧面(22)轴向凸出若干散热柱(6)，BSG控制器(1c)产生的热量通过热沉端板(2)带走；
    散热柱(6)伸入到容纳腔(10)里面，外壳(4)的外周面(41)设置有空气入口(42)和空气出口(43)，空气入口(42)和空气出口(43)与容纳腔(10)连通；
    离心风轮(3)置于容纳腔(10)里面，离心风轮(3)转动时，冷空气从空气入口(42)流入与热沉端板(2)内侧面(22)和若干散热柱(6)接触带走热量并从空气出口(43)流出；离心风轮(3)安装在转轴(7)上，转轴(7)用于驱动离心风轮(3)转动。
  14. 根据权利要求13所述的一种集成式BSG系统，其特征在于：在容纳腔(10)里面还布置有导流板(5)，导流板(5)分隔开空气入口(42)和空气出口(43)并形成导流作用。
  15. 根据权利要求14所述的一种集成式BSG系统，其特征在于：导流板(5)是热沉端板(2)内侧面(22)凸出形成。
  16. 根据权利要求13或14或15所述的一种集成式BSG系统，其特征在于：离心风轮(3)包括顶轮盘(31)和安装在顶轮盘(31)边缘的若干风叶片(32)，顶轮盘(31)中间设置有轴孔(311)，顶轮盘(31)利用轴孔(311)安装在转轴(7)上，若干风叶片(32)沿着顶轮盘(31)的轴线周向间隔分布，若干风叶片(32)围成内侧空腔(33)，一部分散热柱(6)伸入到空腔(33)里面，其余散热柱(6)位于若干风叶片(32)的外围，在热沉端板的内侧面(22)形成一个没有散热柱(6)的区域(34)，若干风叶片(32)的底端(321)置于 区域(34)里面并贴近热沉端板(2a)的内侧面(22)。
  17. 根据权利要求16所述的一种集成式BSG系统，其特征在于：轴承座(35)的外周面与导流板(5)相切，导流板(5)上设置缺口(51)以便风叶片(32)从缺口(51)穿过。
  18. 根据权利要求17所述的一种集成式BSG系统，其特征在于：散热柱(6)截面形状是圆形。
PCT/CN2019/123958 2019-06-25 2019-12-09 一种集成式风冷结构和集成式bsg系统 Ceased WO2020258738A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201920963301.2U CN210041565U (zh) 2019-06-25 2019-06-25 一种集成式风冷结构和集成式bsg系统
CN201920963301.2 2019-06-25

Publications (1)

Publication Number Publication Date
WO2020258738A1 true WO2020258738A1 (zh) 2020-12-30

Family

ID=69348639

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/123958 Ceased WO2020258738A1 (zh) 2019-06-25 2019-12-09 一种集成式风冷结构和集成式bsg系统

Country Status (2)

Country Link
CN (1) CN210041565U (zh)
WO (1) WO2020258738A1 (zh)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203604225U (zh) * 2013-11-20 2014-05-21 中山大洋电机制造有限公司 一种引风机结构及其应用的中央空调冷却系统
CN105682415A (zh) * 2014-11-20 2016-06-15 深圳万讯自控股份有限公司 一种散热装置、驱动器以及所述驱动器的散热方法
CN205448109U (zh) * 2015-12-30 2016-08-10 深圳市锐钜科技有限公司 冷却风扇
CN206371035U (zh) * 2016-12-16 2017-08-01 上海电驱动股份有限公司 一种集成式bsg电机控制器用散热结构
CN207935971U (zh) * 2018-02-05 2018-10-02 李海峰 一种汽车大灯总成
US20190120194A1 (en) * 2016-05-23 2019-04-25 Robert Bosch Gmbh Start-up method of an internal combustion engine with the aid of a belt-driven starter generator

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203604225U (zh) * 2013-11-20 2014-05-21 中山大洋电机制造有限公司 一种引风机结构及其应用的中央空调冷却系统
CN105682415A (zh) * 2014-11-20 2016-06-15 深圳万讯自控股份有限公司 一种散热装置、驱动器以及所述驱动器的散热方法
CN205448109U (zh) * 2015-12-30 2016-08-10 深圳市锐钜科技有限公司 冷却风扇
US20190120194A1 (en) * 2016-05-23 2019-04-25 Robert Bosch Gmbh Start-up method of an internal combustion engine with the aid of a belt-driven starter generator
CN206371035U (zh) * 2016-12-16 2017-08-01 上海电驱动股份有限公司 一种集成式bsg电机控制器用散热结构
CN207935971U (zh) * 2018-02-05 2018-10-02 李海峰 一种汽车大灯总成

Also Published As

Publication number Publication date
CN210041565U (zh) 2020-02-07

Similar Documents

Publication Publication Date Title
CN207968157U (zh) 一种高效散热式电机
CN106337824B (zh) 一种新型带永磁无刷电机系统的蜗壳离心风机
US12107485B2 (en) Permanent magnet motor with air and water mixed cooling system
CN108539889A (zh) 一种永磁同步电机转子风冷结构
CN109831053A (zh) 外转子电机驱动器的散热结构、电机和离心风机
CN106208521A (zh) 一种气冷电机
CN202142951U (zh) 一种具有风冷散热装置的马达及碎纸机
CN212627526U (zh) 一种自带双冷却风路结构的吊扇电机
CN210041565U (zh) 一种集成式风冷结构和集成式bsg系统
CN202048052U (zh) 用于液压系统装置的伺服电机结构
TW201120320A (en) Fan module and heat disspation device incorporating the same
CN111917243A (zh) 一种自带双冷却风路结构的吊扇电机
CN209217888U (zh) 永磁伺服电机散热结构
WO2012041210A1 (zh) 碎纸机
CN111600403A (zh) 一种外转子永磁电机
CN207853630U (zh) 一种易散热式有感无刷电机
CN218644373U (zh) 一种双叶轮静音发电机组
CN216775389U (zh) 一种电机控制器散热结构
CN110729834A (zh) 一种永磁同步电机风冷转子结构
CN214900536U (zh) 一种集成式风冷结构和集成电机系统
CN2271771Y (zh) 具有导流散热通径的电机壳体
CN216650324U (zh) 一种用于高压变频器的散热装置
CN209170142U (zh) 一种动力驱动电机
WO2018201812A1 (zh) 涵道风扇
CN206471964U (zh) 一种紧凑封闭式电机冷却系统

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: 19935351

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19935351

Country of ref document: EP

Kind code of ref document: A1