2results about How to "Small cutting force" patented technology

A kind of bionic disc cutter for stalk cutting and its design method belong to the technical field of agricultural machinery.The cutter includes cutter base body and multiple cutter teeth which are uniformly distributed along the circumference of the cutter base body in the same direction.The cutter teeth are arc teeth bent to one side, the outer profile curve of the cutter teeth is composed of smooth transition curve, and the side disc surface corresponding to the cutter base body is a plane, and the other side disc surface corresponding to the cutter base body is a curved surface with a cutter tooth surface profile curve composed of arc transition, and the cross section from the cutter tooth root to the cutter tooth tip gradually decreases.The present application significantly reduces the cutting force and cutting energy consumption, improves the cutting efficiency and prolongs the service life of the cutter.

This utility model relates to the field of optocoupler technology, and in particular to an anti-interference optocoupler packaging structure. By placing the fifth pin completely inside the package, the creepage distance between the fifth pin and the adjacent high-voltage fourth and sixth pins is greatly increased. Under high-voltage conditions, the voltage difference between the fourth and sixth pins or the electric field generated by their voltage to ground must travel a longer distance through the interior of the package insulation material (such as epoxy resin) or along its outer surface to reach the fifth pin. This significantly increases the effective electrical insulation creepage distance and electrical clearance, thereby significantly improving the working stability and safety of the product. It solves the technical problem that the creepage distance between the fourth and sixth pins and the fifth pin in existing 6-pin optocouplers is too short, which makes the fifth pin and the circuit components mounted on its surface susceptible to interference or even leakage.