January 21, 2025

Press-fit Terminals for Automotive Wiring Harnesses

The press-fit terminal in the new energy wiring harness is an important interface for connecting electronic devices, especially the wiring harness in the new energy system. The following is a detailed explanation of the press-fit terminal of the new energy wiring harness.

Basic Features of Press-fit Terminals

Press-fit terminals usually have a circular shape, similar to fish eyes, hence the name. It can realize the transmission of video signals or electrical signals and usually supports high-definition or high-speed signal transmission. Press-fit terminals use Press-fit technology, which uses interference fit to achieve a tight connection by inserting the pin of the connector into the metalized hole of the printed circuit board (PCB). This connection method does not require soldering. So it can greatly improve production efficiency while saving soldering costs and equipment investment. In addition, interference fit can also ensure a tight connection between the connector and the PCB, thereby improving the reliability and conductivity of the connection.

Composition and Working Principle of Press-fit Pins

The press-fit terminal consists of a root, two elastic parts and a pin part. During installation, the elastic part is squeezed and easily elastically shrinks, thereby perfectly matching with the conductive holes on the circuit board to achieve an electrical connection. This connection method does not require welding and can be achieved by crimping, thereby improving connection efficiency and reliability.

Application Advantages of Automotive Press-fit Terminals

  • No need for welding

Press-fit terminals are connected by crimping, and no welding operation is required, thus eliminating the tedious steps of preparation, heating, cleaning and inspection required for welding.

  • Quick installation

Since no welding is required, the installation speed of press-fit terminals is greatly accelerated. It helps to shorten the product assembly cycle and improve production efficiency.

  • No thermal stress

In the traditional welding process, PCBs and components may be deformed or damaged due to thermal stress. The press-fit terminaladopts crimping to avoid the generation of thermal stress, thereby improving the reliability of the connection.

  • Tight connection

Press-fit terminals will produce elastic deformation during the crimping process. Providing low contact impedance and high-reliability tight connection, which helps to reduce signal attenuation and interference and improve signal integrity.

  • Reduce costs

Press-fit terminals do not require the use of welding materials such as solder and flux, thereby reducing material costs. At the same time, due to the stable connection and easy maintenance, it can also simplify the module replacement and repair process and reduce maintenance costs.

Application Scenarios of Automotive Press-fit Connector Pins

The application of press-fit terminals in automotive wiring harnesses is mainly reflected in their efficient, economical and reliable connection characteristics.

In automotive wiring harnesses, press-fit terminals are widely used in automotive electronics fields. Such as engine control units, body control units, dashboards, and audio systems. Due to their high efficiency, economy and reliability, press-fit terminals can greatly improve the production efficiency and quality of automotive electronic products.

In addition, press-fit terminals also have the advantages of high quality, wide application, safety and reliability. As a connector in automotive testing instruments, it can be used to detect contacts, switches, plugs and wiring harnesses in automotive electrical systems. At the same time, the press-fit terminal crimping strategy can also support customers in achieving environmentally friendly production and manufacturing.

In general, the application of press-fit terminals in automotive wiring harnesses is an efficient, economical and reliable solution that helps improve the production efficiency and quality of automotive electronic products.

About Hejustamping

Dongguan Heju Precision Electronic Technology Co., Ltd. is a dedicated manufacturer specializing in the production of precision metal stamping parts. Such as press-fit terminals/pins, automotive terminals, electrical spring contacts, micro deep drawn parts, etc. Company has successfully obtained certifications in three major systems: ISO9001, ISO14001, and IATF16949. Dongguan Heju boasts a comprehensive quality inspection system. And provides electroplating support services, demonstrating a commitment to collaborating with customers to meet their specific product customization needs.