Annular winding four-side hybrid linear stepping motor

The invention provides an annular winding four-side hybrid linear stepping motor. Comprising a primary assembly (1), an upper secondary assembly (2), a lower secondary assembly (3), a front secondary assembly (4) and a rear secondary assembly (5), all the assemblies are of salient pole structures, and the five assemblies form a concentric-square-shaped motor structure and form four-side air gaps. The invention has the advantages of high thrust density, simple structure, convenience in processing and assembling, easiness in heat dissipation and the like. 本发明提供了一种环形绕组四面混合式直线步进电机。包括初级组件(1)、上次级组件(2)、下次级组件(3)、前次级组件(4)和后次级组件(5)，所有组件均为凸极结构，五个组件构成"回"形电机结构，且构成四面气隙。本发明具有高推力密度、结构简单、加工装配方便、散热容易等优点。