1. First, meet the requirements of relevant electrical, installation, connection, insulation, protection and other technical standards, which is the basis for selection.
Second, look at the tolerance and size control accuracy of the assembly parts.
Because connectors often involve connection, waterproofing, and male-female contact matching, etc., they need to have high precision requirements for size. At first glance, high-end and low-end connectors are almost the same in appearance and structure. If you take the time to carefully measure the mating dimensions of multiple pairs of connectors with a caliper, you will find that the mating dimensions of poor quality vary greatly, that is, the stability of the connection is not guaranteed, and the consistency of batch products is poor.
Third, LED display manufacturers should not just look at the standard, they should go beyond the standard and pay attention to the situation encountered in practical applications.
Because some of the standards used in the design and production of the LED industry connector are actually borrowed from other industries, because the industry has a relatively short application time, many terms do not meet and meet the rapidly changing requirements of the LED industry, such as the use of aging resistance materials. The assessment is just a general statement that conforms to the use of outdoor projects, but how to define it is based on the UL yellow card or the test. The life of the outdoor project is based on the commercial contract of the project manufacturer or based on a "technical use that everyone can recognize." "Life is subject", these directly affect the selection and design of product materials, and are also the reason for the variety of led connector materials.
In addition, the requirements of individual standard clauses are still relatively low, that is to say, the quality threshold is very low, which results in a variety of home workshops that can be produced at will. Some test standards are tested in a "standard static environment" and often appear After the engineering accident, I went to retest the connector and found that it was qualified according to the standard. Why? Because the laboratory tests have selected standard terms and standard environment, and the environment of the application site is very different, such as the M16 cable fixing head pair at the end of the connector. The requirements for cable gripping force and torque resistance, the standard only says that the tensile force reaches 80N, and the torque resistance value is greater than 0.45Nm. However, the connector may be pulled and twisted artificially in actual use, so the actual data may be far from the standard value. Moreover, this force is maintained between the two connectors for a long time, and after a long time of outdoor use, the connector is often not waterproof or has poor contact and is disconnected.
Fourth, LED display manufacturers pay attention to the design of structural principles, and structural design is very important.
If the principle design of waterproofing, connection, etc. is more advanced, it will be better than others. If you choose the outdated structural principle design, even if the quality control in the manufacturing process is very good, it is often reliable and long-term outdoor weather resistance. Sex and other aspects are not as reliable as innovative products.
Fifth, look at the production quality control system of the connector of the led display manufacturer.
It is easy for a connector company to provide a pair of connectors for testing, and you can get good test scores, but when you arrive at the factory, you will find that there is no inspection standard for raw materials, and there is no necessary test link for finished products. Repair and inspection of unqualified products The absence of procedures and so on has affected the overall quality of the product, that is to say, it is only 100% qualified, but not thousands of thousands or tens of thousands of qualified. In the long run, a good quality system control is even the most important reference factor for lighting manufacturers to choose connector manufacturers, otherwise they will lose big because of small mistakes. In general, companies with larger production scales and technical testing equipment have a higher level of product quality control and stability.
Choosing a good outdoor LED display requires consideration from all aspects, not only the quality of the product, but also the company's comprehensive strength, quality system, after-sales service, and so on. Lianchengfa takes product quality as its life. From raw material procurement to production, installation, and testing, every step is implemented in accordance with the ISO9001:2008 international quality control process, scientific management, and excellence. Products have passed UL, RoHS, and CCC conducted by professional organizations. , CE, EMC, FCC, ETL, IP65 dustproof and waterproof testing and other quality certifications, to ensure that each factory product is of high quality, basically leading and realizing the standardization and mass production of high-standard production management systems for LED products in the industry. It has won a good reputation at home and abroad, and has a profound influence in the industry.
