Circuit board terminal blocks usually consist of a combination of multiple terminals, each designed with a special connection interface and fastening screws. This design allows wires to be easily inserted into the interface and the screws to be fastened for a reliable electrical connection. Compared to individual terminals, terminal blocks offer higher connection efficiency and greater stability, and are particularly suitable for complex scenarios where multiple circuits need to be connected.
Differences between terminals and terminal blocks:
Terminal, as a constituent part of electronic components, its main function is to connect wires and other devices in a circuit. It usually consists of two parts: the interface and the screw. After the wires are inserted into the interface, the circuit connection is realised by fastening the screw. The distinctive feature of terminals is that they are easy to install and remove, and are therefore favoured in circuit design.
In contrast, a terminal block is a component made up of multiple terminals, each equipped with a connecting screw. In circuit design, multiple wires can be connected to a circuit by connecting them to the same terminal block. The main advantage of terminal blocks is that they simplify the connection of complex circuits and increase the efficiency of the connection.
In terms of function, terminals are mainly used for connecting wires and other devices in a circuit, whereas terminal blocks are more often used for connecting multiple circuits. As a result, the functions of terminal blocks are more varied and complex.
In practice, terminals are usually used in applications that require frequent replacement or disassembly, such as test instruments and electronic equipment. Terminal blocks, on the other hand, are more suitable for use in applications where multiple circuits are connected, such as control cabinets, electrical equipment, etc.
In terms of installation, terminals are usually mounted individually on circuit boards or other equipment, while terminal blocks are usually mounted on circuit boards or in cabinets. This makes the terminal block a more robust and reliable mounting method.
The function of the circuit board terminal blocks:
Connection Functions
One of the main functions of circuit board terminal blocks is to connect circuits. In electronic equipment,individual circuit blocks need to be connected via wires or cables for signal transmission and current flow. Circuit board terminal blocks enable reliable connections between circuits by providing multiple connection points where wires can be easily inserted and secured.This type of connection not only simplifies the layout and design of the circuit, but also improves the efficiency and stability of the connection.
Protection Functions
During the operation of electronic equipment, circuits may be disturbed by various external factors,such as vibration, shock, humidity, etc..All these factors may adversely affect the circuit connection,leading to problems such as loose connection, signal distortion or current interruption.The circuit board terminal blocks,through its robust structure and stable connection, can effectively resist these interferences and protect the integrity and stability of the circuit connection.
Signal Transmission and Distribution
In complex electronic equipment, it may be necessary to transmit signals from one circuit block to another, or to distribute signals to multiple circuit blocks for processing.Circuit board terminal blocks make it easy to transmit and distribute signals by providing multiple connection points, ensuring accurate signal transfer and processing in the circuit.
Easy maintenance and upgrading
During the use of electronic equipment, it may be necessary to adjust or replace circuits. The circuit board terminal blocks make it easy for engineers to maintain and upgrade circuits by providing easily removable and replaceable connection points. This design not only improves the maintainability of the equipment, but also extends its service life.
Three common terminal block types: PCB mount, barrier strip and feed-through
PCB Mount Terminal Blocks: Also known as wire-to-board terminal blocks or Euro terminal blocks
Mounting: Soldered directly to the PCB
Configuration: Single, double and multi-row
Usage: Insert bare wires into the module and securely fasten the clips in the housing
Isolation strip: for applications where vibration is required
Mounting: Screw-down terminals to accommodate bare or terminated wires
Configurations: single, double and multiple rows
Usage: Insert wires and tighten screws
Straight-through terminals: used to create wire-to-wire connections
Configurations: single, double and multi-row
Use: Insert two separate wires into opposite sides of the housing to connect together
In today’s increasingly complex and intelligent electronic equipment, the design and manufacture of circuit board terminal blocks are also constantly upgrading and innovating. The circuit board terminal blocks of the future will be more miniaturised, integrated and intelligent to meet the needs of electronic equipment for high performance, high reliability and easy maintenance.
