WO2023245781A1 - 基于导向隔离的发电机组吸附式永磁发电机冷却装置 - Google Patents
基于导向隔离的发电机组吸附式永磁发电机冷却装置 Download PDFInfo
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- WO2023245781A1 WO2023245781A1 PCT/CN2022/105880 CN2022105880W WO2023245781A1 WO 2023245781 A1 WO2023245781 A1 WO 2023245781A1 CN 2022105880 W CN2022105880 W CN 2022105880W WO 2023245781 A1 WO2023245781 A1 WO 2023245781A1
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- generator
- air duct
- guide
- duct body
- generator cooling
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- 238000001816 cooling Methods 0.000 title claims abstract description 86
- 238000002955 isolation Methods 0.000 title claims abstract description 64
- 230000030279 gene silencing Effects 0.000 claims abstract description 5
- 230000017525 heat dissipation Effects 0.000 claims description 8
- 230000003584 silencer Effects 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 238000010248 power generation Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—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
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- 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
- H02K5/207—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium with openings in the casing specially adapted for ambient air
Definitions
- the invention relates to the technical field of permanent magnet generators, specifically an adsorption-type permanent magnet generator cooling device for generator sets based on guide isolation.
- the invention patent with publication number CN101127468A discloses a cooling fan structure for a permanent magnet generator.
- this structure cannot guide and discharge hot air. The hot air flow will rebound and the heat dissipation effect is limited.
- the present invention provides a method to efficiently dissipate heat from the generator stator coil, rotor, etc. through negative pressure back suction, and guide and discharge the self-suction air flow through a guide isolation ring, effectively Adsorption-type permanent magnet generator cooling device for generator sets based on guided isolation to avoid hot air flow rebound.
- the adsorption-type permanent magnet generator cooling device for generator sets based on guide isolation proposed by the present invention includes a base, a generator cooling air duct body, an engine, a generator body, a back-suction heat-conducting fan, a guide Isolation ring, generator cooling air duct fixed connection ring plate, volute hot air flow guide and outlet air duct body and silencer shell, the generator cooling air duct body is located on the base, the engine is located on the base, the The side of the generator cooling air duct body close to the engine has a non-enclosed structure.
- the output shaft of the engine extends into the generator cooling air duct body.
- the end of the engine away from the generator cooling air duct body is provided with an engine starting pull plate.
- the engine starting pull plate is provided with an air inlet
- the guide isolation ring is fixedly provided on the generator cooling air duct body
- the guide isolation ring is located at an end of the generator cooling air duct body away from the engine
- the fixed connection ring plate of the machine cooling air duct is fixed on the generator cooling air duct body.
- the generator body includes a generator rotor and a generator stator.
- the generator rotor and the generator stator are both located in the guide isolation ring.
- the generator rotor is connected to the output shaft of the engine.
- a guide isolation air duct is formed between the engine and the generator cooling air duct body.
- a guide isolation air duct 2 is formed between the generator rotor and the generator stator and the guide isolation ring.
- the guide isolation ring The first air duct cooperates with the second guide isolation air duct to form a guide air channel.
- the back-suction heat-conducting fan is installed on the generator rotor.
- the back-suction heat-conducting fan is located outside the guide isolation ring.
- the volute-type hot air flow The guide and outlet air duct body is fixedly installed on the fixed connection ring plate of the generator cooling air duct, and the guide isolation ring is located inside the end of the volute type hot air flow guide and outlet air duct body and the fixed connection ring plate of the generator cooling air duct.
- the back-suction heat-conducting fan is located inside the volute-type hot air flow guide and outlet air duct body.
- the silencing shell is located on the base. One end of the volute-type hot air flow guide and outlet air duct body extends into the silencing shell.
- the reverse suction heat conduction fan includes a fixed circular plate, a fan blade ring and a guide fan blade.
- the fixed circular plate is fixed on the generator.
- the fan blade ring is arranged on the outer periphery of the fixed disc, and the guide fan blades are evenly distributed along the outer circumference of the fan blade ring.
- the guide fan blades are arranged in an arc shape that is convex to one side. The direction of the arc-shaped protrusion of the guide fan blades is opposite to the rotation direction of the generator body.
- the volute-type hot airflow guide and outlet air duct body includes a baffle, a side baffle and an airflow discharge pipe.
- the side baffle is provided on the inner circumference of the baffle, and the baffle
- An airflow outlet is provided at a position corresponding to the side baffle.
- the airflow outlet is located at the airflow outlet.
- the airflow outlet extends into the muffler shell.
- a heat dissipation slot is provided on the base.
- a circular protrusion is provided at the center of the inner side of the baffle, and the middle height of the central protrusion is higher than the side height.
- the circular protrusion at the center allows the airflow to flow between the side baffles and the center. The flow rotates between the protrusions to guide the hot air flow to the air discharge pipe.
- the back-suction heat-conducting fan In order to cooperate with the back-suction heat-conducting fan to guide and discharge the hot air flow and avoid the rebound of the hot air flow, the back-suction heat-conducting fan is located at the center of the volute-type hot air flow guide and outlet air duct body.
- the volute-type hot air flow guide is The gap between the inner wall of the guide and outlet air duct body and the back-suction heat-conducting fan is 2 to 3 cm.
- the base is provided with multiple sets of air inlet slots, and the air inlet slots are located below the engine.
- the beneficial effects achieved by the present invention by adopting the above structure are as follows:
- the adsorption-type permanent magnet generator cooling device of the generator set based on guide isolation proposed by the present invention realizes the heat generated during the operation of the generator body through the setting of the reverse suction heat-conducting fan.
- the air is discharged through reverse suction, and the air flow is guided and isolated through the generator cooling air duct body and the guide isolation ring.
- the hot air flow guided and isolated by the volute type hot air flow guide is guided and isolated by the volute type hot air flow in the volute.
- the shell-type hot airflow is guided and rotated between the side baffles and the circular protrusions of the air duct body, and is finally guided to the airflow discharge port and the airflow discharge pipe for discharge, thereby achieving efficient cooling of the generator body.
- Figure 1 is a schematic structural diagram of the position and structure of the adsorption-type permanent magnet generator cooling device for the generator set based on guide isolation proposed by the present invention on the entire engine;
- Figure 2 is a schematic diagram of the overall structure of the adsorption-type permanent magnet generator cooling device for generator sets based on guided isolation proposed by the present invention
- Figure 3 is a schematic diagram of the positional relationship between the generator cooling air duct body, the guide isolation ring and the fixed connection ring plate of the generator cooling air duct of the adsorption-type permanent magnet generator cooling device for generator sets based on guide isolation proposed by the present invention
- Figure 4 is a schematic diagram of the positional relationship between the generator cooling air duct body and the fixed connection ring plate of the generator cooling air duct of the adsorption-type permanent magnet generator cooling device for generator sets based on guide isolation proposed by the present invention
- Figure 5 is a schematic structural diagram of the reverse suction heat-conducting fan of the adsorption-type permanent magnet generator cooling device for generator sets based on guided isolation proposed by the present invention
- Figure 6 is a schematic diagram of the installation structure of the back-suction heat-conducting fan of the adsorption-type permanent magnet generator cooling device for generator sets based on guide isolation proposed by the present invention
- Figure 7 is a schematic diagram of the inner structure of the volute-type hot air flow guide and outlet air duct body of the adsorption-type permanent magnet generator cooling device for generator sets based on guide isolation proposed by the present invention
- Figure 8 is a schematic diagram of the outer structure of the volute-type hot air flow guide and outlet air duct body of the adsorption-type permanent magnet generator cooling device for generator sets based on guide isolation proposed by the present invention.
- the adsorption-type permanent magnet generator cooling device for generator sets based on guide isolation includes a base 1, a generator cooling air duct body 2, and a generator body. 3. Reverse suction heat-conducting fan 4. Guide isolation ring 5. Generator cooling air duct fixed connection ring plate 6. Volute hot air flow guide outlet air duct body 7. Silencer shell 8 and engine 20. Generator cooling air duct body 2 is set on the base 1, the engine 20 is set on the base 1, the side of the generator cooling air duct body 2 close to the engine 20 is a non-enclosed structure, and the output shaft of the engine 20 extends into the generator cooling air duct body 2.
- the end of the engine 20 away from the generator cooling air duct body 2 is provided with an engine starting pull plate.
- the engine starting pull plate is provided with an air inlet 9 .
- the guide isolation ring 5 is fixed on the generator cooling air duct body 2 .
- the guide isolation ring 5 is fixed on the generator cooling air duct body 2 .
- Located at one end of the generator cooling air duct body 2 away from the engine 20, the generator cooling air duct fixed connection ring plate 6 is fixedly provided on the generator cooling air duct body 2.
- the generator body 3 includes a generator rotor and a generator stator.
- the generator rotor and the generator stator are both located in the guide isolation ring 5.
- the generator rotor is connected to the output shaft of the engine 20.
- a guide isolation air duct is formed between the generator and the generator cooling air duct body 2.
- the generator rotor and the power generation The guide isolation air duct 2 is formed between the stator of the machine and the guide isolation ring 5.
- the guide isolation air duct 1 cooperates with the guide isolation air duct 2 to form a guide air induction channel.
- the reverse suction heat conduction fan 4 is installed on the generator rotor.
- the heat-conducting fan 4 is located outside the guide isolation ring 5, the volute-type hot air flow guide and outlet air duct body 7 is fixed on the fixed connection ring plate 6 of the generator cooling air duct, and the guide isolation ring 5 is located in the volute-type hot air flow guide and outlet air duct.
- the reverse suction heat-conducting fan 4 is located inside the cover of the volute-type hot air flow guide and outlet air duct body 7.
- the guide isolation air duct 1 and the guide isolation air duct 2 It cooperates with the volute-type hot air flow guide and outlet air duct body to form a connected air flow channel.
- the reverse suction heat conduction fan 4 the low-temperature air flow is introduced from the air inlet 9 on the engine starting pull plate.
- the low-temperature air flow flows along the The airflow channels flow between the guide isolation air duct 1, the guide isolation air duct 2 and the volute type hot air guide outlet air duct body, thereby cooling the generator rotor and the generator stator.
- the silencer shell 8 is located on the base 1 , one end of the volute-type hot air flow guide and outlet air duct body 7 extends into the silencer shell 8 .
- the reverse suction heat-conducting fan 4 includes a fixed circular plate 10, a fan blade ring 11 and a guide fan blade 12.
- the fixed circular plate 10 is fixed on the generator rotor, and the fan blade ring 11 is installed on the generator rotor.
- the outer periphery of the fixed circular plate 10 is fixed, and the guide fan blades 12 are evenly distributed along the outer circumference of the fan blade ring 11.
- the guide fan blades 12 are arranged in an arc shape convex to one side, and the arc convex direction of the guide fan blade 12 is in line with the direction of the arc.
- the rotation direction of the generator body 3 is opposite.
- the volute-type hot air flow guide and outlet air duct body 7 includes a baffle 13, a side baffle 14 and an airflow discharge pipe 15.
- the side baffle 14 is provided on the inner circumference of the baffle 13.
- the baffle An air discharge port 16 is provided at the position corresponding to the side baffle 13 and the side baffle 14.
- the air discharge pipe 15 is located at the air discharge port 16.
- the air discharge pipe 15 extends into the muffler shell 8.
- the base 1 is provided with a heat dissipation slot 17.
- the circular protrusion 18 at the center allows the airflow to flow between the side baffles 14 and the central protrusion.
- the hot air flow is guided to the air flow discharge pipe 15 by rotating the flow.
- the back-suction heat-conducting fan 4 is located at the center of the volute-type hot air flow guide and outlet air duct body 7.
- the gap between the inner wall of the volute-type hot air flow guide and outlet air duct body 7 and the back-suction heat-conducting fan 4 is 2 ⁇ 3cm.
- the base 1 is provided with multiple sets of air inlet slots 19.
- the air inlet slots 19 are located below the engine 20.
- the low-temperature air in the air inlet slots 19 acts on the reverse suction heat transfer fan 4. It enters the generator cooling air duct body 2, and cooperates with the air inlet volume of the air inlet 9 on the auxiliary engine starting pull plate to efficiently cool the generator body 3.
- the generator cooling air duct body 2, the guide isolation ring 5 and the volute hot air flow guide outlet air duct body 7 cooperate to form a connected air flow guide channel.
- the reverse suction type is driven.
- the heat-conducting fan 4 rotates, and the low-temperature airflow is introduced from the air inlet 9 on the engine starting pull plate into the connected airflow guide channel through the arc-shaped guide fan blades 12.
- the low-temperature airflow moves along the airflow guide channel, affecting the generator.
- the rotor and the generator stator are cooled. After cooling the generator rotor and the generator stator, the airflow heats up and enters the volute-type hot airflow guide and outlet air duct body 7.
- the hot airflow passes between the circular protrusion 18 and the side baffle. 14, and is finally discharged through the air discharge port 16 and the air discharge pipe 15.
- the reverse suction heat conduction fan 4 the low-temperature cooling air flow enters the power generation through the air inlet slot 19 provided on the base 1
- the engine, the generator rotor and the generator stator are cooled synchronously.
- the generator cooling air duct body 2, the guide isolation ring 5 and the volute type hot air flow guide outlet air duct The arrangement of the body 7 realizes the isolation and guidance of the hot air flow, and uses the back-suction heat-conducting fan 4 to suck back the external cold air flow and guide and discharge the heated hot air flow, thereby achieving efficient cooling of the permanent magnet generator set.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
本发明公开了基于导向隔离的发电机组吸附式永磁发电机冷却装置，包括底座、发电机冷却风道体、发动机、发电机本体、反吸式导热扇、导向隔离圈、发电机冷却风道固定连接环板、蜗壳式热气流导向引出风道体和消音壳，发电机冷却风道体设于底座上，发动机远离发电机冷却风道体的一端设有发动机启动拉盘，发动机启动拉盘上设有进风口，导向隔离圈固定设于发电机冷却风道体上，发电机冷却风道固定连接环板固定设于发电机冷却风道体上。本发明涉及永磁发电机技术领域，具体指一种通过负压反吸式对发电机定子、发电机转子等进行高效散热，并通过导向隔离圈对自吸气流进行导向排出，有效避免热气流反弹的基于导向隔离的发电机组吸附式永磁发电机冷却装置。
Description
本发明涉及永磁发电机技术领域，具体为基于导向隔离的发电机组吸附式永磁发电机冷却装置。
永磁发电机在工作时，由于其定子线圈的阻抗，电流通过时会有热量发出，电机体内部的温度较高。现有的永磁发电机大多采用采用外置冷却风扇对发电机的定子和转子进行散热，此种散热结构会导致发电机组整体体积偏大，且不能实现热气流的有效排出，从而影响永磁电机的散热效率。
公开号为CN101127468A的发明专利公开了一种永磁发电机的冷却风扇结构，但是该结构不能将实现热风的导向排出，热气流会反弹，散热效果受限。
发明内容
针对上述情况，为弥补上述现有缺陷，本发明提供了一种通过负压反吸式对发电机定子线圈、转子等进行高效散热，并通过导向隔离圈对自吸气流进行导向排出，有效避免热气流反弹的基于导向隔离的发电机组吸附式永磁发电机冷却装置。
本发明提供如下的技术方案：本发明提出的基于导向隔离的发电机组吸附式永磁发电机冷却装置，包括底座、发电机冷却风道体、发动机、发电机本体、反吸式导热扇、导向隔离圈、发电机冷却风道固定连接环板、蜗壳式热气流导向引出风道体和消音壳，所述发电机冷却风道体设于底座上，所述发动机设于底座上，所述发电机冷却风道体靠近发动机的一侧为非封闭式结构，所述发动机的输出轴延伸至发电机冷却风道体内，所述发动机远离发电机冷却风道体的一端设有发动机启动拉盘，所述发动机启动拉盘上设有进风口，所述导向隔离圈固定设于发电机冷却风道体上，所述导向隔离圈设于发电机冷却风道体远离发动机的一端，所述发电机冷却风道固定连接环板固定设于发电机冷却风道体上，所述发电机本体包括发电机转子和发电机定子，所述发电机转子和发电机定子均位于导向隔离圈内，所述发电机转子与发动机的输出轴相连，发动机与发电机冷却风道体之间形成导向隔离风道一，发电机转子和发电机定子与导向隔离圈之间形成导向隔离风道二，导向隔离风道一与导向隔离风道二配合形成导向引风通道，所述反吸式导热扇设于发电机转子上，所述反吸式导热扇位于导向隔离圈外，所述蜗壳式热气流导向引出风道体固定设于发电机冷却风道固定连接环板上，所述 导向隔离圈位于蜗壳式热气流导向引出风道体与发电机冷却风道固定连接环板相连一端的内部，所述反吸式导热扇位于蜗壳式热气流导向引出风道体内部，所述消音壳设于底座上，所述蜗壳式热气流导向引出风道体的一端延伸至消音壳内。
为实现气流的反吸式流动，从而实现对发电机本体的全面散热，所述反吸式导热扇包括固定圆板、扇叶环和导流扇叶，所述固定圆板固定设于发电机转子上，所述扇叶环设于固定圆板外周，所述导流扇叶沿扇叶环的外圆周均匀分布，所述导流扇叶呈向一侧凸起的弧形设置，所述导流扇叶的弧形凸起方向与发电机本体的旋转方向相反。
为实现热气流的引导式排出，所述蜗壳式热气流导向引出风道体包括挡板、侧挡板和气流排出管，所述侧挡板设于挡板的内侧圆周，所述挡板和侧挡板对应的位置处设有气流排出口，所述气流排出管设于气流排出口处，所述气流排出管延伸至消音壳内，所述底座上设有排热槽。
作为优选地，所述挡板内侧的中心位置设有圆形凸起，所述圆心凸起中部高度高于侧边高度，通过中心位置的圆形凸起设置使得气流可以在侧挡板和中心凸起之间转动流动，以实现将热气流引导至气流排出管处。
为与反吸式导热扇配合实现热气流的引导排出，避免热气流反弹，所述反吸式导热扇位于蜗壳式热气流导向引出风道体的中心位置处，所述蜗壳式热气流导向引出风道体的内侧壁与反吸式导热扇的之间的间隙为2～3cm。
作为优选地，所述底座上设有多组进风槽，所述进风槽位于发动机的下方。
采用上述结构本发明取得的有益效果如下：本发明提出的基于导向隔离的发电机组吸附式永磁发电机冷却装置，通过反吸式导热扇的设置，实现了发电机本体工作过程中产生热量的反吸式排出，并通过发电机冷却风道体与导向隔离圈对气流进行导向隔离，同时通过蜗壳式热气流导向引出风道体的导向作用使导向隔离圈导向隔离引出的热气流在蜗壳式热气流导向引出风道体的侧挡板和圆形凸起之间进行旋转，最终引导至气流排出口和气流排出管处排出，从而实现对发电机本体的高效冷却。
附图用来提供对本发明的进一步理解，并且构成说明书的一部分，与本发明的实施例一起用于解释本发明，并不构成对本发明的限制。在附图中：
图1为本发明提出的基于导向隔离的发电机组吸附式永磁发电机冷却装置于发动机整体的位置结构示意图；
图2为本发明提出的基于导向隔离的发电机组吸附式永磁发电机冷却装置的整体结构示意图；
图3为本发明提出的基于导向隔离的发电机组吸附式永磁发电机冷却装置的发电机冷却风道体、导向隔离圈和发电机冷却风道固定连接环板的位置关系示意图；
图4为本发明提出的基于导向隔离的发电机组吸附式永磁发电机冷却装置的发电机冷却风道体和发电机冷却风道固定连接环板的位置关系示意图；
图5为本发明提出的基于导向隔离的发电机组吸附式永磁发电机冷却装置的反吸式导热扇的结构示意图；
图6为本发明提出的基于导向隔离的发电机组吸附式永磁发电机冷却装置的反吸式导热扇的安装结构示意图；
图7为本发明提出的基于导向隔离的发电机组吸附式永磁发电机冷却装置的蜗壳式热气流导向引出风道体的内侧结构示意图；
图8为本发明提出的基于导向隔离的发电机组吸附式永磁发电机冷却装置的蜗壳式热气流导向引出风道体的外侧结构示意图。
其中，1、底座，2、发电机冷却风道体，3、发电机本体，4、反吸式导热扇，5、导向隔离圈，6、发电机冷却风道固定连接环板，7、蜗壳式热气流导向引出风道体，8、消音壳，9、进风口，10、固定圆板，11、扇叶环，12、导流扇叶，13、挡板，14、侧挡板，15、气流排出管，16、气流排出口，17、排热槽，18、圆形凸起，19、进风槽，20、发动机。
下面将结合本发明实施例中的附图，对本发明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发明一部分实施例，而不是全部的实施例；基于本发明中的实施例，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，都属于本发明保护的范围。
需要说明的是，下面描述中使用的词语“前”、“后”、“左”、“右”、“上”和“下”指的是附图中的方向，词语“内”和“外”分别指的是朝向或远离特定部件几何中心的方向。
如图1所示，本发明采取的技术方案为图1(发动机整体结构示意图)中椭圆区域内的部分。
如图1、图2、图3和图4所示，本发明所提供的基于导向隔离的发电机组吸附式永磁发电机冷却装置，包括底座1、发电机冷却风道体2、发电机本体3、反吸式导热扇4、导向隔离圈5、发电机冷却风道固定连接环板6、蜗壳式热气流导向引出风道体7、消音壳8和发动机20，发电机冷却风道体2设于底座1上，发动机20设于底座1上，发电机冷却风道体2靠近发动机20的一侧为非封闭式结构，发动机20的输出轴延伸至发电机冷却风道体2内，发动机20远离发电机冷却风道体2的一端设有发动机启动拉盘，发动机启动拉盘上设有进风 口9，导向隔离圈5固定设于发电机冷却风道体2上，导向隔离圈5设于发电机冷却风道体2远离发动机20的一端，发电机冷却风道固定连接环板6固定设于发电机冷却风道体2上，发电机本体3包括发电机转子和发电机定子，发电机转子和发电机定子均位于导向隔离圈5内，发电机转子与发动机20的输出轴相连，发电机与发电机冷却风道体2之间形成导向隔离风道一，发电机转子和发电机定子与导向隔离圈5之间形成导向隔离风道二，导向隔离风道一与导向隔离风道二配合形成导向引风通道，反吸式导热扇4设于发电机转子上，反吸式导热扇4位于导向隔离圈5外，蜗壳式热气流导向引出风道体7固定设于发电机冷却风道固定连接环板6上，导向隔离圈5位于蜗壳式热气流导向引出风道体7与发电机冷却风道固定连接环板6相连一端的内部，反吸式导热扇4位于蜗壳式热气流导向引出风道体7罩内部，导向隔离风道一、导向隔离风道二和蜗壳式热气流导向引出风道体之间配合形成一个连通的气流通道，在反吸式导热扇4的作用下将低温气流从发动机启动拉盘上的进风口9引入，低温气流沿着导向隔离风道一、导向隔离风道二和蜗壳式热气流导向引出风道体之间的气流通道流动，从而对发电机转子和发电机定子进行冷却降温，消音壳8设于底座1上，蜗壳式热气流导向引出风道体7的一端延伸至消音壳8内。
如图5和图6所示，反吸式导热扇4包括固定圆板10、扇叶环11和导流扇叶12，固定圆板10固定设于发电机转子上，扇叶环11设于固定圆板10外周，导流扇叶12沿扇叶环11的外圆周均匀分布，导流扇叶12呈向一侧凸起的弧形设置，导流扇叶12的弧形凸起方向与发电机本体3的旋转方向相反。
如图7和图8所示，蜗壳式热气流导向引出风道体7包括挡板13、侧挡板14和气流排出管15，侧挡板14设于挡板13的内侧圆周，挡板13和侧挡板14对应的位置处设有气流排出口16，气流排出管15设于气流排出口16处，气流排出管15延伸至消音壳8内，底座1上设有排热槽17。挡板13内侧的中心位置设有圆形凸起18，圆形凸起18的中部高度高于侧边高度，通过中心位置的圆形凸起18设置使得气流可以在侧挡板14和中心凸起之间转动流动，以实现将热气流引导至气流排出管15处。反吸式导热扇4位于蜗壳式热气流导向引出风道体7的中心位置处，蜗壳式热气流导向引出风道体7的内侧壁与反吸式导热扇4的之间的间隙为2～3cm。
如图2、图3、图4所示，底座1上设有多组进风槽19，进风槽19位于发动机20的下方，进风槽19的低温空气在反吸式导热扇4的作用下进入发电机冷却风道体2内，配合辅发动机启动拉盘上的进风口9的进风量对发电机本体3进行高效冷却。
具体使用时，发电机冷却风道体2、导向隔离圈5和蜗壳式热气流导向引出风道体7之间配合形成了一个连通的气流导向通道，当发电机转子转动时带动反吸式导热扇4转动，通 过呈弧形设置的导流扇叶12将低温气流从发动机启动拉盘上的进风口9引入至连通的气流导向通道内，低温气流沿着气流导向通道移动，对发电机转子和发电机定子进行冷却降温，对发电机转子和发电机定子进行降温之后的气流升温并进入蜗壳式热气流导向引出风道体7内，热气流在圆形凸起18与侧挡板14之间的内腔中旋转，最终经气流排出口16和气流排出管15排出，同时，在反吸式导热扇4的作用下，低温冷却气流通过底座1上设置的进风槽19进入发电机冷却风道体2内，配合同步对发动机、发电机转子和发电机定子进行降温，整个过程中，通过发电机冷却风道体2、导向隔离圈5和蜗壳式热气流导向引出风道体7的设置，实现了热气流的隔离导向，并通过反吸式导热扇4对外界冷气流进行反吸并将升温之后的热气流导向排出，实现了永磁发电机组的高效冷却。
要说明的是，在本文中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物料或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物料或者设备所固有的要素。
尽管已经示出和描述了本发明的实施例，对于本领域的普通技术人员而言，可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由所附权利要求及其等同物限定。
Claims (6)
- 一种基于导向隔离的发电机组吸附式永磁发电机冷却装置，其特征在于，包括底座、发电机冷却风道体、发动机、发电机本体、反吸式导热扇、导向隔离圈、发电机冷却风道固定连接环板、蜗壳式热气流导向引出风道体和消音壳，所述发电机冷却风道体设于底座上，所述发动机设于底座上，所述发电机冷却风道体靠近发动机的一侧为非封闭式结构，所述发动机的输出轴延伸至发电机冷却风道体内，所述发动机远离发电机冷却风道体的一端设有发动机启动拉盘，所述发动机启动拉盘上设有进风口，所述导向隔离圈固定设于发电机冷却风道体上，所述导向隔离圈设于发电机冷却风道体远离发动机的一端，所述发电机冷却风道固定连接环板固定设于发电机冷却风道体上，所述发电机本体包括发电机转子和发电机定子，所述发电机转子和发电机定子均位于导向隔离圈内，所述发电机转子与发动机的输出轴相连，所述反吸式导热扇设于发电机转子上，所述反吸式导热扇位于导向隔离圈外，所述蜗壳式热气流导向引出风道体固定设于发电机冷却风道固定连接环板上，所述导向隔离圈位于蜗壳式热气流导向引出风道体与发电机冷却风道固定连接环板相连一端的内部，所述反吸式导热扇位于蜗壳式热气流导向引出风道体罩内部，所述消音壳设于底座上，所述蜗壳式热气流导向引出风道体的一端延伸至消音壳内。
- 根据权利要求1所述的一种基于导向隔离的发电机组吸附式永磁发电机冷却装置，其特征在于，所述反吸式导热扇包括固定圆板、扇叶环和导流扇叶，所述固定圆板固定设于发电机转子上，所述扇叶环设于固定圆板外周，所述导流扇叶沿扇叶环的外圆周均匀分布，所述导流扇叶呈向一侧凸起的弧形设置，所述导流扇叶的弧形凸起方向与发电机本体的旋转方向相反。
- 根据权利要求2所述的一种基于导向隔离的发电机组吸附式永磁发电机冷却装置，其特征在于，所述蜗壳式热气流导向引出风道体包括挡板、侧挡板和气流排出管，所述侧挡板设于挡板的内侧圆周，所述挡板和侧挡板对应的位置处设有气流排出口，所述气流排出管设于气流排出口处，所述气流排出管延伸至消音壳内，所述底座上设有排热槽。
- 根据权利要求3所述的一种基于导向隔离的发电机组吸附式永磁发电机冷却装置，其特征在于，所述挡板内侧的中心位置设有圆形凸起，所述圆心凸起中部高度高于侧边高度。
- 根据权利要求4所述的一种基于导向隔离的发电机组吸附式永磁发电机冷却装置，其特征在于，所述反吸式导热扇位于蜗壳式热气流导向引出风道体的中心位置处，所述蜗壳式热气流导向引出风道体的内侧壁与反吸式导热扇的之间的间隙为2～3cm。
- 根据权利要求5所述的一种基于导向隔离的发电机组吸附式永磁发电机冷却装置，其特征在于，所述底座上设有多组进风槽，所述进风槽位于发动机的正下方。
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