2results about How to "Flexible parameter adjustment" patented technology

This invention discloses an active power filter with electromagnetic shielding, belonging to the field of power filter technology. It includes: an active power filter circuit module; and an integrated electromagnetic shielding housing for housing and shielding the active power filter circuit module. At least one structural part of the integrated electromagnetic shielding housing is integrated with the circuitry of the active power filter circuit module to form a functional filtering electrical component. The integrated electromagnetic shielding housing, in conjunction with the active power filter circuit module, forms a comprehensive electromagnetic shielding system that integrates source suppression, path blocking, frequency band absorption, port sealing, and thermal shielding. This invention solves the problems of electromagnetic leakage, large size, high cost, and limited high-frequency shielding effect of traditional split-type shielding, achieving integrated electromagnetic shielding and active filter in terms of structure, electrical system, and thermal management, significantly improving the electromagnetic compatibility, power density, filtering performance, and long-term operational reliability of the equipment.

The invention relates to the technical field of preparation of advanced ceramic materials, and provides a high-temperature fast firing method for alumina ceramics in order to solve the problems that a traditional gas furnace is too long in sintering period and cannot meet emergency production requirements and the quality problem occurs when a traditional process is directly transplanted to an electric furnace. The temperature transition from room temperature to the target sintering temperature is ensured to be completed within a short time, meanwhile, the densification, grain growth and other processes of the ceramic material are ensured to be stably carried out through accurate temperature control in each stage, short-period high-quality sintering from a green body to a finished product is achieved, high-quality product preparation can be completed within 72-96 hours, and the production cost is reduced. The method is especially suitable for small-batch, multi-variety and emergency order production modes; parameters are flexibly adjusted and can be quickly optimized according to product requirements; and the adaptability to electric furnace models and specifications is high.