What is the design secret of rectangular connector with low temperature rise?
Publish Time: 2025-03-20
As an important connecting component between electronic devices, the performance of rectangular connector is directly related to the stability and reliability of the whole system. Among many performance indicators, temperature rise is a crucial consideration. Excessive temperature rise will not only affect the service life of the connector, but also may cause thermal damage to surrounding electronic components. Therefore, it is particularly important to design a rectangular connector with low temperature rise.
The design secret of rectangular connector with low temperature rise lies in the selection of materials. The internal contact parts of the connector are usually made of materials with high conductivity and low thermal resistance, such as copper alloy or gold-plated copper alloy. These materials not only have good electrical conductivity, but also can effectively reduce the heat generated when current passes through. At the same time, the shell material of the connector is also carefully selected, usually using plastic or metal composite materials with high temperature resistance and good heat dissipation performance to ensure that the connector will not be deformed or damaged due to overheating during long-term operation.
In addition to material selection, the structural design of rectangular connector also has an important influence on its temperature rise performance. In the design, by optimizing the layout and arrangement of internal contact parts, the current density can be reduced, thereby reducing the temperature rise. In addition, heat dissipation channels or heat sinks are set inside the connector to increase the heat conduction area and improve the heat dissipation efficiency. These design details work together to enable the rectangular connector to maintain a low temperature rise during long-term operation.
Optimizing contact impedance is also the key to reducing the temperature rise of the rectangular connector. The smaller the contact impedance, the less heat is generated when the current passes through. Therefore, in the design, by increasing the number of contact points, optimizing the shape of the contact surface, using low-resistance materials such as gold plating, and ensuring good matching of the contact parts, the contact impedance can be significantly reduced, thereby reducing the temperature rise.
In addition, the friction heat generated by the rectangular connector during the plugging and unplugging process is also an important factor affecting the temperature rise. In order to reduce the friction heat during the plugging and unplugging process, grease or special coatings are usually used in the design to reduce the friction coefficient, and the plugging and unplugging force design is optimized to ensure that the plugging and unplugging process is smooth and does not cause excessive wear.
In terms of overall layout, the rectangular connector also fully considers the heat dissipation needs. By reasonably setting ventilation holes and heat dissipation channels, it can be ensured that the heat generated by the connector during operation can be dissipated in time to avoid excessive temperature rise caused by heat accumulation. At the same time, the installation position and direction of the connector are also carefully planned to ensure that it can fully utilize natural convection or forced convection for heat dissipation.
In summary, the design secret of the rectangular connector with low temperature rise lies in the comprehensive consideration of material selection, structural design, contact impedance optimization, plug-in friction heat control, and overall heat dissipation layout. These factors work together to enable the rectangular connector to maintain a low temperature rise during long-term operation, thereby ensuring the stability and reliability of the system.
