PC board parts series introduction:
Name: PC board isolation column, circuit board spacing column, PC spacing column, airplane frame, airplane type isolation column, insulating sleeve.
Main function: fastening, insulation, keep the height of the circuit board consistent.
When there are multiple circuit boards inside the appliance at the same time, it is necessary to separate multiple circuit boards and insulate them from each other, while maintaining a certain distance for components to be connected. Sometimes also need to take into account the aesthetic, heat dissipation and other requirements, because of the special nature of electrical products, usually on the fire rating and environmental protection level and higher requirements.
Common classification
According to the circuit board fastening method, divided into
1. Double-headed isolation column: the circuit board up and down are open a hole, the two ends of the isolation column are inserted into this hole, with the shape of the aircraft head fastened circuit board.
2. Round bottom isolation column: one end open a larger hole, one end is smaller, the installation of the whole isolation column from the large hole through the bottom because of the larger diameter can not pass and locked on the substrate; the other end to the aircraft head fastening PC board. The garden bottom isolation column is fastened to the base plate at one end and inserted into the PC board at the other end.
3. Flat bottom isolation column: the base plate is not open, the bottom of the isolation column is usually hexagonal head or threaded hole, can be installed directly on the fixed slot on the base plate, the other end to fasten the PC board with a plane head. Flat bottom isolation column also known as hexagonal isolation column
4. Gecko isolation column: because the head shape is more pointed shaped like a gecko named, the base plate with a threaded hole (usually 3MM) tightened, the other end of the aircraft head fastened to the PC board. Shaped like a gecko
5. Card type isolation column: the two ends of the shape is almost symmetrical, PC board and substrate openings to maintain the same, respectively, fastened PC board and substrate. Almost symmetrical structure, the two ends take the same way to fix
In practice, according to the use of circuit boards, there are multi-compartment isolation column and shaped isolation column, generally need to be customized according to the requirements of engineers, isolation column products more than the use of precision plastic mold injection.