換向器的構造和工作

2022-05-19

的建設和運作換向器區域換向器可以用一組接觸棒構建,這些接觸棒朝向直流電機的旋轉軸設置,並與電樞繞組相連。當軸轉動時,換向器will reverse the current flow within a winding. For a particular armature winding, once the shaft has completed the one-half turn, then the winding will be connected so that current supplies through it in the reverse of the first direction.

在直流電機中,電樞電流導致設定的磁場使用旋轉力,否則會使用繞組上的扭矩使其旋轉。

在直流發電機中,可以沿軸方向施加機械扭矩,以通過固定磁場維持電樞繞組運動,從而在繞組內激發電流。在這兩種情況下,有時,換向器將反轉流經繞組的電流方向,以便機器外部電路內的電流僅保持一個方向。


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