Non-concentric O-shaped channel microfluid mixer

The utility model belongs to the field of micro-fluidic chips, and particularly discloses a non-concentric O-shaped channel micro-fluid mixer which comprises two inlets, an outlet, six micro-fluid channels, a partition plate and a connecting micro-channel. By designing the microfluid channel of a special structure, when two kinds of microfluid flow through different areas of the microchannel, themicrofluid flows along the inner wall face of the microchannel through the Coanda effect of flowing of the microfluid, secondary flow is formed at the junction of the two kinds of microfluid due to chaotic convection, and the convection diffusion strength is enhanced. The micro-fluidic chip has the advantages that the separation speed is high, a stop block structure does not need to be designed, and the blocking effect of the stop block in the micro-fluidic flowing process is effectively avoided; energy (such as magnetism, sound and electricity) input in other forms is not needed, and effective mixing of various micro