Pcb In Air Conditioning
By：pcbbuy 03/13/2021 17:16
Air conditioner is a weapon that we use to withstand high temperature in hot summer, so that we can have comfortable enjoyment even when the temperature is high. This is the biggest role of air conditioning, followed by providing us with indoor heating function in cold winter. This plays a very important role in the comfort of our lives, this editor will introduce the air-conditioning circuit board, please see the introduction of the air-conditioning circuit board below.
Air Conditioning Circuit Board-Introduction to Air Conditioning Circuit Board
The names of the circuit boards are: ceramic circuit board, alumina ceramic circuit board, aluminum nitride ceramic circuit board, circuit board, PCB board, aluminum substrate, high frequency board, thick copper board, impedance board, PCB, ultra-thin circuit board, ultra thin circuit boards, printed (copper etching technology) circuit boards, etc. The circuit board makes the circuit miniaturized and intuitive, which plays an important role in the mass production of fixed circuits and the optimization of the layout of electrical appliances.
The circuit board can be called a printed circuit board or a printed circuit board. The English names are (Printed Circuit Board) PCB, (Flexible Printed Circuit board) FPC circuit board (FPC circuit board is also called flexible circuit board. Flexible circuit board is polyimide Or polyester film is a kind of substrate with high reliability and excellent flexible printed circuit board.
It has the characteristics of high wiring density, light weight, thin thickness, good bending!) and soft and hard Combination board (reechas, Soft and hard combination plate)-The birth and development of FPC and PCB have spawned a new product of soft and hard combination board. Therefore, the soft and hard combined board, that is, the flexible circuit board and the rigid circuit board, after pressing and other processes, combined according to the relevant process requirements, to form a circuit board with FPC characteristics and PCB characteristics.
Air Conditioning Circuit Board-Air Conditioning Circuit Board Classification Introduction
According to the number of layers, circuit boards are divided into three major categories: single panel, double panel, and multilayer circuit board. The first is the single panel. On the most basic PCB, the parts are concentrated on one side, and the wires are concentrated on the other side. Because the wires only appear on one side, this PCB is called a single-sided circuit board. Single panel is usually simple to manufacture and low in cost, but the disadvantage is that it cannot be applied to products that are too complicated.
The double-sided board is an extension of the single-sided board. When the single-layer wiring cannot meet the needs of electronic products, the double-sided board is used. Both sides are covered with copper and have traces, and the vias can be used to connect the lines between the two layers to form the required network connection. Multi-layer board refers to a printed board that has more than three conductive graphic layers and the insulating material in between, and the conductive patterns are interconnected as required. Multilayer circuit board is the product of the development of electronic information technology towards high speed, multifunction, large capacity, small volume, thinness and light weight.
Air conditioner circuit board-matters needing attention
1. Choose a reasonable wire width. The impact interference caused by the transient current on the printed lines of the PCB circuit board is mainly caused by the inductance of the printed wire. Therefore, the inductance of the printed wire should be minimized.
2. Adopting the correct wiring strategy and using equal routing can reduce the inductance of the wires, but the mutual inductance and distributed capacitance between the wires increase. If the layout allows, it is best to use a grid-shaped wiring structure. The specific method is to print the side of the board horizontally. Wiring, vertical wiring on the other side, and then connected with metallized holes at the cross holes.
3. In order to suppress the crosstalk between the PCB circuit board wires, when designing and routing, try to avoid long-distance equal routing, as far as possible from the distance between the line, the signal line and the ground line and the power line as much as possible cross. Setting a grounded printed line between some signal lines that are very sensitive to interference can effectively suppress crosstalk.
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