Noise reduction structure for dry type transformer

Abstract

A noise reduction structure for a dry type transformer comprises a casing, a first fastening member, first connecting plates, a base box and a shock absorbing plate, wherein the shock absorbing plateis arranged at the lower end surface of the base box, and a support table is arranged in a first opening of the base box; shock absorbing components arranged in the base box are respectively connectedto the support table and the base box; a second connecting plate is arranged on the support table, and the second connecting plate is slidably connected to a guide rod; a shock absorbing spring is sleeved outside the guide rod; mounting grooves are arranged on the upper end surface of the support table; second through holes are arranged at the bottoms of the mounting grooves; air blowing devicesare arranged in the mounting grooves; a first sound absorbing layer is respectively arranged on the inner wall of each second through hole; the first connecting plates are respectively arranged on thecasing, and the first connecting plates are connected to the base box through the first fastening member; a noise blocking piece is arranged on the inner wall of the casing, and a transformer is arranged in the casing; and the transformer is detachably connected to the support table. The noise reduction structure provided by the invention can effectively eliminate the noise generated by the operation of the dry type transformer, and can perform heat dissipation and cooling on the dry type transformer.

Description

technical field [0001] The invention relates to the technical field of noise reduction equipment, in particular to a noise reduction structure for dry-type transformers. Background technique [0002] Dry-type transformers are widely used in places such as local lighting, high-rise buildings, airports, wharf CNC machinery and equipment; simply speaking, dry-type transformers refer to transformers whose iron core and windings are not immersed in insulating oil; with the continuous advancement of urbanization in our country , Dry-type transformers are used more and more, and dry-type transformers are used to provide electric energy for high-rise residential quarters, office buildings, hospitals, hotels and other places; but when dry-type transformers are running, their alternating magnetic fields produce periodic alternating currents on the core and coils. The changing force causes itself to vibrate against the installed bottom plate, and the vibrating iron core coil radiates n...

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Problems solved by technology

[0002] Dry-type transformers are widely used in places such as local lighting, high-rise buildings, airports, and wharf CNC machinery and equipment; simply speaking, dry-type transformers refer to transformers whose iron core and windings are not immersed in insulating oil; with the continuous advancement of urbanization in my country , Dry-type transformers are used more and more, and dry-type transformers are used to provide electric energy for high-rise residential quarters, office buildings, hospitals, hotels and other places; but when the dry-type transformer is running, its alternating magnetic field produces periodic alternating currents on the core and coil. The variable force causes its own vibration to the installed bottom plate, and the vibrating iron core coil radiates noise outward; under the action of the inner wire of the energized dry-type transformer and the spiral flow inside the iron core, the radiated noise is much higher than that of a single frequency The noise generated by vibration is more complex and disturbing to the people; the noise will not only affect the daily life of people in the building, but in serious cases will have a bad impact on people's health, and the same noise will also cause sound pollution, which is not conducive to people's health life

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