Abstract: A high-voltage winding (130) includes a winding body (1310), a high-voltage coil (1320), and a high-voltage insulating layer (1330). A wire is wound on the winding body (1310) to form the high-voltage coil (1320), and the high-voltage insulating layer (1330) is wrapped around the high-voltage coil (1320) and the winding body (1310).

Abstract: A winding body (1310) for a high-voltage winding (130) includes: a plurality of winding plates (1313), each of the winding plates (1313) being provided with a plurality of winding grooves (1314) to form a plurality of comb teeth on the winding plate (1313); and at least one auxiliary member (5316), the auxiliary member (5316) being ring-shaped, the winding plates (1313) being arranged along a circumferential direction of the auxiliary member (5316), and the auxiliary member (5316) being fixedly connected to the winding plates (1313). A high-voltage winding (130) includes: the foregoing winding body (1310); a high-voltage coil (1320); and a high-voltage insulating layer (1330). A dry-type transformer (10) includes a core (110), a low-voltage winding (120), and the foregoing high-voltage winding (130). The low-voltage winding (120) is sleeved outside the core (110), and the high-voltage winding (130) is sleeved outside the low-voltage winding (120).

Abstract: The present invention discloses a preparation method for a spherical Zn-Mn metal compound. The preparation method comprises the following steps: adding a metal ion solution to a weak acid carbon dot solution; and then, adding a sodium carbonate solution to the above solution at an oil bath while stirring to obtain a spherical Zn-Mn metal carbonate compound. The present invention proposes that using water-soluble or ethanol-soluble carbon dots as a carrier and polyvinylpyrrolidone as a surfactant to prepare the spherical Zn-Mn metal compound, a novel preparation method for the Zn-Mn metal compound is formed. The prepared material may be applied to a lithium ion battery and may further be applied to application researches in the field of synthesis of other electrochemical energy sources or photocatalytic materials.

Abstract: An electrosurgical system (10) includes an electrosurgical instrument (16) coupled to a gas control unit (14). The gas control unit (14) supplies a preset flow rate of gas to the electrosurgical instrument (16) for displacing surgical smoke and/or blood from a surgical site. A vent tube may be coupled to the gas control unit (14) for regulating a pressure within the surgical site.