Abstract: A connecting structure of choke coil, comprises a coil base composed of two halves forming an accommodating area within the two halves, and a coiling area beyond the two halves, and a corresponding symmetric connecting section extended from a solid section each on both sides of the coiling area, such that the coil base is installed onto a housing and constitutes an insulation with the housing to prevent a high-voltage electric leakage and comply with the requirements of high-voltage electric leakage tests.

Abstract: A silicon steel core spacing structure for improving induction comprises a shielded copper spacer between the magnetic flux sections of two silicon steel core, and the magnetic reluctance of such copper spacer is relatively low that can guide the traveling path of the magnetic line of force, and thus lower the magnetic flux density passing through the copper spacer. Therefore, the induction outputted from a transformer or a choke coil not only can comply with the safety tests, but also can improve the light-load power and the heavy-load power.