Since the outdoor link is more stringent than the indoor link, the heat and heavy rain can be seen for a long time, so when choosing the waterproof connector of the LED display, of course, it is also necessary to choose a high-temperature resistant and waterproof connector.
The following Chinese LED display factory introduces how to choose a high-quality LED waterproof connector, usually because of the following considerations.
First, it must first meet the technical specifications of electrical, installation, connection, insulation, protection, etc. This is the basis for selection.
Second, you can't just look at the specifications, you should go beyond the specifications and pay attention to the situations encountered in practical applications. Since some of the standards used in the design and production of LED connectors are actually learned from other industries, and due to the short application time of the industry, many clauses do not meet and satisfy the rapidly changing requirements of the LED industry. For example, the assessment of aging resistance materials is only abstractly said to be suitable for field engineering applications, but how to define it, is it based on the UL yellow card or the test? The life of field engineering applications is based on the commercial contract of the project manufacturer or a "technical application life" that we can recognize. These directly affect the selection and design of commodity 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, the quality threshold is very low, resulting in various home workshops being able to produce at will.
Some test specifications are tested in a "standard static environment". Usually, after an engineering accident occurs, the connector is retested and found to be qualified according to the specification. Why? Because laboratory tests all select standard terms and standard environments, and the environment of the application site varies greatly. For example, the M16 cable fixing head at the end of the connector has requirements for cable grip and torque resistance. The standard only states that the tensile force reaches 80N and the torque resistance value is greater than 0.45N.m. However, the connector may be pulled and twisted artificially in actual use, so the actual data may be far from the standard value, and this force is maintained between the two connectors for a long time. After long-term field use, it usually ends up causing the connector to be not waterproof or have poor contact and break the circuit.
Third, look at the structural principle design. The structural design is very important. If the principle design of waterproofing, connection, etc. is more advanced, it is already one step ahead. If an outdated structural principle design is selected, even if the quality control during the production process is excellent, it is usually not as reliable as the innovative generation of products in terms of reliability and long-term weather resistance in the field.
Fourth, look at the tolerance control accuracy of the assembly parts. Since waterproof connectors usually involve connection, waterproofing, male and female contact cooperation, etc., they need to have high precision requirements on the standards. At first glance, the appearance and structure of high-end and low-end connectors are almost the same, but if you take some time and carefully measure the cooperation standards of multiple pairs of connectors with a caliper, you will find that the cooperation standards of poor quality connectors vary greatly, that is, the stability of the connection is not guaranteed, and the consistency of batch products is poor.
Fifth, look at the production quality control system of the connector factory. It is easy for a connector company to provide a pair of connectors for testing, and it can also get excellent test scores, but when you arrive at the factory, you will find that there is no inspection standard for the materials, there is no necessary testing link for the finished products, and there is no procedure for the repair and inspection of unqualified products, etc., which all affect the quality of the product assembly, that is, only 100% qualified, not 10,000th or 10,000th qualified.
In the long run, good quality system control is even the most important reference factor for lighting manufacturers to choose connector manufacturers, otherwise they will "lose the big for the small". Generally speaking, companies with larger production scales and technical inspection equipment have a higher level of product quality control and stability.