Application of high-power quasi-continuous green fiber laser in texturing of connector pins

April 3, 2024

1. Connector
A connector is a component used to connect electronic devices or circuits, and the pin is the part of the connector that is inserted into the socket of the connector to establish a circuit connection. Pins are usually made of metallic materials and have conductive properties. The application range of pins is very wide, the following are some common application areas:

Electronic equipment: Pins are often used on circuit boards of electronic equipment to connect various electronic components, such as integrated circuits, resistors, capacitors, etc.

Communication equipment: Pins are used to connect cables of communication equipment such as telephones, mobile phones, and modems to achieve signal transmission.

Automotive electronics: Pins are used in automotive electronic systems to connect various sensors, control modules, displays, etc.

Industrial equipment: Pins are widely used in industrial automation equipment to connect sensors, actuators, controllers, etc.

Computer hardware: Pins are used to connect computer hardware components, such as memory modules, expansion cards, data cables, etc.

2. Process difficulties and requirements of connector pins

Precision requirements: The manufacturing of pins requires high-precision processing and assembly to ensure that the pins can be accurately inserted into the socket and establish a reliable circuit connection.

Conductive properties: As the conductive part of the circuit, the pins need to have good conductive properties to ensure the stability and reliability of signal transmission.

Durability: Pins need to have high durability and be able to withstand frequent plugging and unplugging operations without damage or failure.

Anti-corrosion and anti-oxidation: Pins are usually exposed to the external environment and require anti-corrosion and anti-oxidation materials or surface treatments to extend the service life of the pins.

Connection stability: The pins need to be tightly connected to the socket and have good mechanical stability to prevent the pins from loosening or disconnecting during use.

3. Connector pin fixation method

1. Connector pin press-in type: The pins are fixed by forced press-in.

The pins are easy to install, and the insulated wire does not need to be stripped, ensuring a good electrical connection without damaging the wire.

No need to withdraw cables, saving cable investment.

There is no need to cut off the main cable, and tap points can be made at any position on the cable.

Low cost and small installation space requirements.

The connectors are fully insulated, eliminating the need to strip the cable insulation to create cable branches.

2. Connector pin epoxy type: After the insulator and shell are drilled, the pins are fixed with epoxy resin.

It has strong chemical resistance, acid resistance, alkali resistance and organic solvent resistance.

It has low molding shrinkage, good dimensional stability and low probability of cracking.

Excellent mechanical properties and heat resistance.

It has high bonding strength and is especially suitable for plastic packaging of products with plug-ins and coils and electronic devices.

It has excellent electrical properties and can be used as high-frequency and high-voltage insulating materials. Its arc resistance and surface leakage resistance are stronger than ordinary insulating materials.

3. Connector pin point riveting type: Press in and then point rivet the shell to fix the pin.

It has a simple structure and high reliability, and is a cost-effective permanent fixed assembly method.

The assembled metal parts are strong, tight and stable, and have high impact resistance, corrosion resistance, impact resistance and weather resistance.

The processing process is vibration-free, pollution-free, noise-free, environmentally friendly, energy-saving, fast, efficient, high-quality and beautiful.

It can be riveted and fixed at multiple points without adding any adhesives, solvents, fillers and fasteners. It has low energy consumption, compact equipment and small floor space.

4. Advantages of laser in fixing pins

When using epoxy to secure pins. The function of pin texturing is to increase the roughness of the fixed part and better fix the pin to prevent loosening and rotation.

Using the 150W green light produced by our company, a product can be texturized in 3.6 seconds, and the pin fixing surface can be texturized more efficiently.

Copper has better absorption of green light, less heat generation and better effect, and will not be oxidized due to excessive temperature during texturing.

Roughness can be achieved with Ra>5um and is relatively uniform.

The average depth of marking<6um

5. High-power quasi-continuous green fiber laser

Good beam quality: The laser beam produced by the green fiber laser has high quality, small spot size and high beam quality, making it suitable for precision machining and high-precision applications.

High energy efficiency: Compared with traditional gas lasers, green fiber lasers have higher energy efficiency, lower energy consumption, and are energy-saving and environmentally friendly.

Strong stability: Green fiber laser has good working stability. The beam quality and power output are stable during the working process, and it is suitable for long-term continuous operation.

Easy to integrate: Green fiber lasers are small in size and light in weight, making them easy to integrate into various equipment and are widely used in medical, communications, material processing and other fields.

Tunability: The wavelength of green fiber lasers is usually around 532 nanometers, and the wavelength can be fine-tuned by adjusting device parameters to meet the needs of different applications.

Long life: Green fiber lasers generally have a long life, low maintenance costs, and good economics.

6. About OUHK Laser

Shenzhen Gongda Laser Co., Ltd. is a young high-tech intelligent manufacturing enterprise, a national high-tech enterprise, and a Shenzhen specialized and special enterprise. OUHK Laser focuses on the R&D and manufacturing of high-power short-wavelength fiber lasers. Committed to becoming an international first-line and domestic leading fiber laser supplier. It has completed the research and development and production conversion of a series of core products such as "50-500W sub-nanosecond green laser", "100-3000W continuous green laser", "200-1000W infrared nanosecond pulse fiber laser", and the products are widely used in lithium batteries, photovoltaics Batteries, highly reflective metal 3D printing, semiconductors and other fields.