News

QUANNING OBTAINED A THIRD INVENTION PATENT Introduction: Up to now, Quanning has obtained 3 invention patents, 22 utility model patents, design patents. On Aug. 1st, the official Patent Website publicized the award of invention patents in the second half of 2021. Quanning was listed and obtained the patent certificate issued by the State Intellectual Property Office of the people's Republic of China. Our invention patent – [an energy-saving intelligent relay based on the Internet of things"(Patent No.: ZL202110421903.7, Patentee: Nanjing Quanning Electric appliance Co., Ltd) has gone through the process of application, examination, technical confirmation by the authorities. The successful application of this invention patent marks that our research and development on relay has reached a higher level, and also shows that our contactor's technical level has accessed to the international leading position. In the future, Quanning will continue to increase investment in scientific research, expand the company's talent team to provide sufficient strength for R&D and technology improvement, to contribute more energy-saving, intelligent, high-voltage and low-voltage electrical products with excellent performance to the society.

Introduction: In recent years, Quanning has been committed to the business philosophy of "providing users with value-added goods and creating long-term business opportunities for manufacturers", insisting on meeting different needs of clients from variety fields. Under the leadership of the professional R & D team and the active cooperation of colleagues, Quanning has achieved fruitful results, and various new products have been launched one after another. The 11th anniversary of the founding in 2021 is also the most fruitful year for Quanning in the frequency converter industry. The DC contactors we produced account for 80% of the industry, and our products have been sold all over the world and have been highly recommended by our customers. QNZ1 series DC contactor is based on the original QNZ series DC contactor, with advanced technical improvement and product structure innovation. The service performance is improved by 10%-20% compared with the original and it reduces the cost and improves the service life for customers. The production of 30A and 40A relays for frequency converters in the same period has contributed to the development and market of Quanning. The advent of mute and star sealing contactors for elevators and holding brake contactors for elevators has attracted the high attention of relevant professionals in the industry. In product research and development, we always adhere to the customer use as the first element, and solve the current related problems. Our mute contactor has the following advantages: ① the overall volume is small, which is convenient for timely replacement afterwards; ② High reliability of external rectifier devices; ③ Wide range of use and other characteristics. The star sealing contactor has the following advantages: ① no noise during operation, low cost, wide range of use and reduced failure rate; ② It can be replaced seamlessly with strong substitutability; ③ High reliability of external rectifier. How to improve the arc extinguishing ability of the contact is the significate technical difficulties in the R&D of elevator special holding brake contactor. Compared with other contactors of the same type, our holding brake contactor has the following advantages: we have 8 disconnection contacts at work on both power side and load side when the two-wire circuit is disconnected. When the circuit load is switched, the sectional voltage value of a single contact is about 1/8 of the rated working voltage, and the disconnection speed is increased by 8 times compared with a single contact. Make the arc extinguishing process quickly enter an optimal state. While Quanning is developing advanced products, we are also actively expand our product line-up, and gradually generate production. The successful research and development of the special mute and star sealing contactor for elevator and the advent of the elevator holding brake contactor have filled the gap in the field of elevator contact safety. In the frequency converter industry, our QNZ1 series of new contactors have been successfully developed and widely promoted. At the same time, the successful production of low-power relays for frequency converters has led us to a higher level in the frequency converter industry.

Introduction: Quanning is selected as the Nanjing Gazelle enterprise in 2020. On April 29, 2020, the "2020 Nanjing unicorn and gazelle enterprise release and high growth enterprise training and promotion meeting" was held in Nanjing, hosted by the Nanjing Municipal Committee of the Communist Party of China and the Nanjing Municipal People's government, and hosted by the Nanjing development and Reform Commission, the Nanjing local financial supervision and Administration Bureau, and the Jiangbei new area management committee. At this meeting, Quanning was successfully selected as the 2020 Nanjing gazelle enterprise. As a high-tech enterprise specializing in R&D, production and sales of special contactors, relying on the professional technical team and industry accumulation, Quanning has concentrated its scientific research strength and developed a series of products such as QNZ and QNZ1 series frequency converter special contactors, QNEZ series contactors, elevator special star sealing, mute contactors, etc., with perfect performance, excellent safety, reliability and progressiveness, filling the market gap. It can effectively reduce the production cost and operation cost of the frequency converter industry, and improve the safety and reliability of the frequency converter, which will become the development trend of the frequency converter buffer relay. As a member of gazelle enterprise, in line with the tenet of employee pride, user satisfaction and enterprise development, we advocate the enterprise concept of humanization, science and technology first to provide technologically advanced component products for the inverter industry. Make greater contributions to the construction of "innovative city and beautiful ancient capital" in Nanjing.