Miniature fluid pump

The utility model discloses a micro fluid pump which comprises a volute, one end of the volute in the axial direction is provided with a liquid inlet, the other end of the volute in the axial direction is closed, the volute is provided with a bent liquid outlet portion with a flowing cavity, the tail end of the liquid outlet portion is provided with a liquid outlet, and the end, facing the liquid inlet, of the volute is provided with an installation sinking groove. A main impeller is rotatably connected in the volute above the mounting sinking groove, a plurality of flowing channels are distributed on the main impeller, and the liquid inlet is communicated with the flowing cavity through the flowing channels; the device is compact in structure and small in occupied space. 本实用新型公开了一种微型流体泵，包括蜗壳，蜗壳轴向方向上的一端具有进液口，蜗壳轴向方向上的另一端封闭，蜗壳上设有弯曲设置且具有流动腔的出液部，出液部的末端具有出液口，蜗壳朝向进液口的一端设有安装沉槽，安装沉槽上方的蜗壳内可转动地连接有主叶轮，主叶轮上排布有若干流动通道，进液口经流动通道和流动腔连通；本实用新型结构紧凑，占用空间小。