Electronic wiring drawings and wiring configuration principle of anatomy

1, the role of electrical diagrams: Describe the working principle of electricity, describe the composition and function of the product, provide an important tool to attach and use information and tools.

2, the sketch is the main way of expression of the electrical diagram is a graph with symbols, annotated enclosures or simplified outline of the system or equipment that the relationship between the various components and a connection diagram.

3, components and cables are the main expression of electrical diagrams

(1) A circuit is usually composed of four parts: power supply, switchgear, electrical equipment and connecting wires. If the power supply, switchgear and electrical equipment are regarded as components, the circuit consists of components and connecting wires, or The components in accordance with a certain order with the connection up to form a circuit.

(2) Components and cable representation

① components used in the circuit diagram when there is a centralized representation, separate representation, semi-focused representation.

② components used in the layout of the layout of the layout method and functional layout method.

③ cable for the circuit diagram when there is a single line representation and multi-line representation.

for the wiring diagram and other diagrams when the continuous line representation and interrupt line representation.

4, graphic symbols, text symbols (or project code) is the main part of the electrical diagram. An electrical system or an electrical device is made up of various components. In the electrical diagrams, mainly in the form of diagrams, they are usually represented by simple graphical symbols, whether they represent structure, function, or electrical connection.

5, The different description of energy flow, information flow, logic flow and function flow make up the diversity of electrical diagrams. In an electrical system, various electrical devices and devices have different relationships from different angles and different sides.

⑴ energy flow - the flow of electricity and transmission.

⑵ information flow - signal flow and transmission.

⑶ logic flow - the logical relationship between each other.

⑷ functional flow - the functional relationship between each other.