Connectors are widely used and play an important role in production applications. For connectors, this article will continue to introduce connectors from three aspects: 1. What are the precautions for overheating of electrical connectors, 2. What are the common faults of electrical connectors, and 3. Explanation of the connector housing.
1. Precautions for preventing electrical connectors from overheating
①When any signs of failure are found, disassemble the electrical connector of the power cord and unscrew the conductive column in the socket of the electric water heater, polish it with zero-size emery cloth or abrasive paste until it is bright, and remove the wire connecting the contact tongue between the power cord and the electrical connector. , Terminal screws, tongues and the oxide layer of the conductive column in the socket on the electric water heater to reduce the contact resistance.
②Apply a little conductive paste on the power cord connectors and the socket lead posts of the electric water heater.
③If the tongues and wiring screws of the military electrical connectors are seriously damaged, they should be replaced immediately.
④If the socket and conductive column on the electric water heater are seriously damaged, they should be removed immediately, and the socket and conductive column of the same specification should be replaced. When installing the electric water heater socket, a power knife switch should be added.
2. Common fault analysis and solutions of electrical connectors
At present, the application of electrical connectors in life has become more and more extensive. Due to the small size of this type of device and the relatively precise design, various situations often occur in use.
For some common faults, we also need to do the corresponding analysis work and think of solutions:
①Temperature resistance At present, the maximum working temperature of the connector is 200°C (except for a few high-temperature special connectors), and the minimum temperature is -65°C. Since the current generates heat at the contact point when the connector is working, resulting in a temperature rise, it is generally believed that the operating temperature should be equal to the sum of the ambient temperature and the temperature rise of the contact point. In some specifications, the maximum temperature rise allowed by the connector at the rated operating current is clearly specified.
②The intrusion of moisture resistance will affect the insulation performance of the connection and corrode metal parts.
③When the salt spray-resistant connector works in an environment containing moisture and salt, its metal structural parts and the surface treatment layer of the contact parts may cause galvanic corrosion, which affects the physical and electrical properties of the connector.
④Vibration and shock Vibration and shock resistance are important properties of electrical connectors, especially in special application environments such as aviation and aerospace, railway and road transportation. important indicator of sexuality.
⑤Other environmental properties According to the requirements of use, other environmental properties of the electrical connector include sealing (air leakage, liquid pressure), liquid immersion (the ability to resist deterioration of specific liquids), low air pressure, etc.
3. New aviation connector housing
Unshielded Coating: Anodized Coloring Shielding Coating: Galvanized Iridescent Passivation or Military Green Passivation, Electroless Nickel Plating Insulator: Thermosetting Material Wire Seal and Sealing Ring: Silicone Rubber Material Connection type: Removable from the back of the insulator, welding and printed board type can not be installed and removed circular filter electrical connector Mechanical life: ≥ 1000 times
In the industry, this aviation plug has been continuously upgraded. As mentioned above, its durability has been improved, the size of the cable connection has been further improved, and the appearance of the aviation plug has also improved. beautified. The advantage of this aviation plug is also to gradually reduce the service life of the cable assembly, as well as the operating cost, after a long-term upgrade process.
To further develop and operate this aviation plug equipment, the next important factor to consider is how to use this aviation plug product well in harsh environments. After long-term continuous practice, this aviation plug is constantly innovating, so the connection technology has also been improved, which can achieve higher-level requirements.
In addition, this aviation plug device also has anti-vibration performance, that is, the aviation plug with anti-vibration lock version is produced and developed. During their use, there will be different cable lengths and qualities, and even some aviation plugs are It can be used as an indicator working voltage or switching state.
The strength of the aviation plug is also relatively strong. In the process of use, there is no wiring application, and many types of machines use capacitive devices. Therefore, the inductance and sensor of this aviation plug have been gradually used. Generally speaking, the advantages of this aviation plug are as described by the experts above. Because of the obvious advantages, it has been widely used in many fields.
