The invention discloses a squirrel cage induction motor with internal circulation air cooling channel, the outer surface of the casing, the heat radiating cavity along the circumferential and axial through to the space layout; the front and back end cover are provided with ventilation and heat dissipation of multiple cavity connected, the ventilation channel with motor a cage is communicated with the inner cavity; the rotor is provided with circumferential uniformly distributed axial air channel, one side of the shaft and positioned in the rear end cover is provided with an axial fan, axial fan motor provides the power for the internal air circulation flow. The motor is transferred, the rear cover side air through the axial channel into the side of the front cover, the heat transfer and the end part of the stator winding, into the cavity through the front cover casing radiating duct, after cooling through the air duct into the rear cover rear end cover of the motor side, the heat transfer and the end part of the stator winding, once again into the axial air channel, complete cycle. When the motor is reversed, the direction of the air circulation is opposite to the previous one. The invention realizes the internal air circulation flow in the motor and improves the heat dissipation capacity of the motor.
【技术实现步骤摘要】
一种具有内循环空气冷却通道的笼型异步电机
本专利技术属于电气工程领域,涉及一种改进的笼型异步电机。
技术介绍
笼型异步电机通常采用封闭式结构,通过机壳、转轴向外界散热,电机内部空气不循环,定子绕组端部散热条件差,容易发生局部过热现象。
技术实现思路
针对上述技术问题,本专利技术提出一种具有内循环空气冷却通道的笼型异步电机,可以实现电机外部空气流动及电机内部空气循环流动,从而提高了电机的散热能力。为了解决上述技术问题,本专利技术提出的一种具有内循环空气冷却通道的笼型异步电机,包括离心风扇罩、离心风扇、后端盖、笼型转子、机壳、转轴、密封垫和前端盖;所述机壳的外表面上,沿周向间隔的布置有散热片和轴向贯通的散热空腔,所述散热空腔内设有散热翅;所述前端盖和后端盖上均设有多个通风道,通风道的一端与所述机壳外表面上的散热空腔连通,通风道的另一端与电机的内腔相通;所述笼型转子设有周向均布的多个轴向通风道,笼型转子前端盖一侧与后端盖一侧均布置有风叶,转子旋转时风叶离心作用加速空气径向流动,从而冷却定子绕组端部;所述转轴上且位于后端盖的一侧设有轴流风扇,所述轴流风扇的扇叶数量与所述笼型转 ...
【技术保护点】
一种具有内循环空气冷却通道的笼型异步电机,包括离心风扇罩(1)、离心风扇(2)、后端盖(3)、笼型转子(5)、机壳(6)、转轴(7)、密封垫(8)和前端盖(9);其特征在于,所述机壳(6)的外表面上,沿周向间隔的布置有散热片(10)和轴向贯通的散热空腔(11),所述散热空腔(11)内设有散热翅(12);所述前端盖(9)和后端盖(3)上均设有多个通风道,通风道的一端与所述机壳(6)外表面上的散热空腔(11)连通,通风道的另一端与电机的内腔相通;所述笼型转子(5)设有周向均布的多个轴向通风道(14),所述转轴(7)上且位于后端盖(3)的一侧设有轴流风扇(4),所述轴流风扇(4) ...
【技术特征摘要】
1.一种具有内循环空气冷却通道的笼型异步电机,包括离心风扇罩(1)、离心风扇(2)、后端盖(3)、笼型转子(5)、机壳(6)、转轴(7)、密封垫(8)和前端盖(9);其特征在于,所述机壳(6)的外表面上,沿周向间隔的布置有散热片(10)和轴向贯通的散热空腔(11),所述散热空腔(11)内设有散热翅(12);所述前端盖(9)和后端盖(3)上均设有...
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