A brief analysis of the outstanding performance of the waterproof connector

Connectors, male and female sockets, aviation plugs, Type-C jacks, many of these coupling commodities have a moisture-proof role, and waterproof connectors in the manufacturing application has many advantages, simple analysis of waterproof connectors outstanding performance: 1, excellent environmental performance. Universal environmental performance includes high temperature resistance, water resistance, corrosion resistance, vibration and impact. High temperature resistance: waterproof connectors at this stage of the higher working temperature of 200 ℃ (very few high-temperature special waterproof connector outside), the lower temperature of -65 ℃. Connector Power Adhesive can ensure that the goods according to the many SMT solder wire high temperature. Because the waterproof connector work, the flow of electricity in the contact point caused by heat generation, resulting in warming, and thus generally feel that the temperature in the work should be equivalent to the ambient temperature and contact warming and the sum of. In some standards, the waterproof connector expressly specified in the rated value of the maximum allowable temperature rise under the work of the electrical flow. Corrosion resistance: waterproof connector with moisture and salt in the working environment, its metal structural components, contacts surface treatment layer may cause thermoelectric leaching, jeopardizing the waterproof connector physics and electrical properties. In order to better review the electrical waterproof connector to withstand the working ability of such environments, requires a corrosion resistance test. It is the waterproof connector suspended in a temperature-controlled test chamber, with the required concentration value of sodium chloride solution with air compression spray out to produce corrosion-resistant air, the exposure time required by the commodity standards, at least 48 hours. Vibration and shock: vibration and shock resistance is the key performance of electric waterproof connector, in special applications such as railroad lines and road transportation is critical, it is the detection of electric waterproof connector mechanical system robustness and stability of the electrical contact of the main index value. The requirements are clearly defined in the relevant test methods. The maximum instantaneous velocity, the delay time and the impact single-pulse waveform, as well as the duration of the electrical continuity intervals, should be required in the impact test. The intrusion of water and moisture can jeopardize the performance of the coupling insulation and rust metal parts. Stable cold and humidity test standards for air humidity.90% ~ 95% (according to commodity standards, up to 98%), temperature +40 ± 20 ℃, the test period according to commodity requirements, at least 96 hours. Alternate changes in cold and wet test is more demanding. 2, extraordinary mechanical properties. In terms of networking control, insertion force is the key mechanical properties. Insertion force is divided into insertion force and pull-out force (pull-out force is also known as separation force), the two standards are not the same. In the relevant specification there is a relatively large insertion force and small separation force requirements, which indicates that, from the application point of view, the insertion force should be small (and thus there are low insertion force LIF and no insertion force ZIF structure), while the separation force is too small, it will jeopardize the stability of the contact. Another major mechanical property is the mechanical service life of waterproof connectors. Mechanical service life is in fact a durability index value, generally referred to as the actual mechanical operation. It is a plug-in and a pull-out for a cycle system, in order to standardize the plug-in cycle system after the waterproof connector can not all normal networking control (such as contact resistance value) as the basis for evaluation. Waterproof connector insertion force and mechanical service life and contact structure (positive pressure size) contact position coating quality (rolling friction index) and its contact sorting specifications precision (pointing degree) related. 3, reliable electrical performance. The key electrical properties of waterproof connectors include contact resistance, grounding resistance and electrical compressive strength. Ground resistance. Consideration of electrical waterproof connector contact parts in the middle and contact parts and chassis in the middle of the insulating layer performance index value, the magnitude of hundreds of megohms to more than a thousand megohms vary. In addition to the insulation properties of the adhesive also has 94v0 level flame retardant practical effect. Resistance to electrical compressive strength or known as resistance to working voltage, material compressive, is the performance of waterproof connector contact parts in the middle or contact parts and chassis in the middle of the working ability to withstand the rated value of the test working voltage. Contact resistance. High-quality waterproof connectors should have a low and smooth contact resistance. Waterproof connector contact resistance from a few milliohms to tens of milliohms vary.

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