A wireless power transfer resolver suitable for high temperature and high pressure environments

Abstract

The invention relates to a rotary transformer, in particular to a rotary transformer suitable for high-temperature and high-voltage environments that transmits wireless power. Including the primary steel shell fixed on the outer wall of the inner tube, and the secondary steel shell outside the inner tube, the outer edge of the primary steel shell and the inner edge of the secondary steel shell are respectively embedded and fixed with a primary magnetic core and a secondary magnetic core, The primary side magnetic core and the secondary side magnetic core are respectively embedded and fixed with the primary side winding and the secondary side winding; the axial positions of the primary side steel shell and the secondary side steel shell correspond to each other, and the axial positions of the primary side magnetic core and the secondary side magnetic core Corresponding to each other, the axial positions of the primary winding and the secondary winding correspond to each other; including two epoxy resin potting layers formed by epoxy resin potting for the primary winding and secondary winding respectively; two epoxy resin potting layers The axial positions correspond to each other; the positions corresponding to the primary steel shell, the primary magnetic core, the first epoxy potting layer and the secondary steel shell, the secondary magnetic core, and the second epoxy potting layer are left A certain gap. The invention is more reliable and durable.

Description

Technical field [0001] The invention relates to a rotary transformer, in particular to a rotary transformer that is suitable for high-temperature and high-voltage environment electric equipment to transmit electric energy in a wireless and non-contact manner. Background technique [0002] In the traditional power supply mode, brush devices are often used for power transmission between devices that are in relative motion. This power supply method has problems such as sliding wear, contact sparks, carbon deposits, and unsafe exposed conductors, and has potential safety hazards. It cannot be used in harsh environments with high temperature and high humidity such as mines. The traditional transformer mainly realizes the function of voltage conversion, and there is a physical connection between the primary and secondary sides of the transformer, which makes it impossible to transmit electric energy between relatively moving devices. [0003] Therefore, it is urgent to adopt a power tra...

AI Technical Summary

Problems solved by technology

This power supply method has problems such as sliding wear, contact sparks, carbon deposits, and unsafe exposed conductors, which poses safety hazards and cannot be used in harsh environments with high temperature and high humidity such as mines.

The traditional transformer mainly realizes the function of voltage conversion. There is a physical connection between the primary and secondary sides of the transformer, and it is impossible to transmit power between relative moving devices.

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