The electronic connector industry involves relevant theoretical knowledge

1, electrical contact theory electrical contact theory has a wide range of physical - chemical processes of contact, including: thermal, electrical, magnetic, semiconductor and other effects of contact, the physical nature of the contact resistance and its calculation, the contact temperature field at the point of contact, the temperature difference between the contacts of the thermo-electric potential and its impact on the migration of the metal, the theory and calculation of the contact metal bridge, the contact of the inter-contact heat and mass transfer of physical processes and their mathematical modeling, etc. In terms of electrical contact theory, Holm has made significant contributions, his magnum opus "electrical contact" summarizes his decades of research, in his honor, the international establishment of the Holm electrical contact society, the major countries have the corresponding annual meeting, the domestic Beijing University of Posts and Telecommunications, Fuzhou University, Guizhou University and other electrical contact research. 2, arc theory with electric plugging and unplugging of the electrical connector involves the problem of electric arc, the arc theory includes the separation of contacts when the contacts are separated. Arc theory includes how to arc and arc quenching theory when the contacts are separated, gas discharge and the process of excitation, spark discharge, glow discharge and arc discharge boundaries and processes, ionic equilibrium and ionization and de-ionization process, the pole and arc column theory, residual current heat accumulation, electrical breakdown and thermal breakdown process, the static and dynamic characteristics of the arc, the arc of energy and overvoltage and so on. 3, the theory of electrical heating in addition to the Dielectric loss is the source of heat, the heat of the appliance is mainly current-carrying conductor current effect, in the high current and strong alternating magnetic field, the carrier fluid not only produces a huge electrodynamic force, but also produces the skin effect and neighborhood effect, the carrier fluid current line distribution is not uniform will have a direct impact on the heat and temperature rise.

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