Dry-type transformer capable of reducing noise

• Main Authors: PAN ZHENBIN, FANG YUESHENG, LI JINAN, ZHANG YOUWEI, WANG HUI, XIE JINGSONG
• Format: Patent
• Language: Chinese; English
• Published: 30.04.2021
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; INDUCTANCES; MAGNETS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; TRANSFORMERS

The invention discloses a dry-type transformer capable of reducing noise. The dry-type transformer comprises a clamping piece and an iron core, the iron core is formed by stacking and combining silicon steel sheets, and the dry-type transformer is characterized in that an upper noise reduction layer is arranged on the periphery of a side yoke on the upper portion of the iron core and wraps a joint at the side yoke on the upper portion of the iron core; the transformer has the advantages that the side yoke of the iron core is coated with epoxy resin, part of vibration energy loss is changed into heat energy, and the vibration of the silicon steel sheets is reduced, so that the noise generated by the iron core is reduced, the purposes of damping, vibration attenuation and noise reduction are achieved, the noise reduction effect is obvious, and the cost is lower; and in addition, a screw reinforced iron core and a clamping piece are added, and noise generated by natural vibration when the iron core works is prev