What is the process and trend of induction cooker?

The earlier records of the civilianization of induction cookers began with German companies in 1957, and then in 1972 the United States also began the research and development of induction cookers. By the beginning of the last century, induction cookers had become popular in the West. The United States has a long history of research on induction cookers. Induction cookers have been developed more than 100 years ago. Since this kind of induction cooker is not very efficient and is prone to power frequency noise, it has not been widely promoted. In the 1970s, the United States took the lead in developing a high-frequency induction cooker (operating frequency 20-50KHz), followed by Japan also developed a high-frequency induction cooker. The initial start-up time of the domestic induction cooker market was the end of the last century. In the early years, due to poor technology, it was difficult to adapt to the unstable quality of the domestic power grid and the hot food demand of the Chinese People's Congress. There was a gap period until the end of the century. The improvement appeared and attracted the attention of the domestic home appliance industry, followed by the birth of many home appliance brands and new products. Judging from the current situation, the domestic induction cooker market is at least 5-10 years behind the western developed countries. With the advancement of technology and the improvement of the quality of components, domestic induction cookers have become mature. The development of domestic induction cookers has roughly gone through the following stages: the first generation of products include environmentally friendly (including Yada) induction cookers, which are characterized by the use of independent oscillation units, multiple power tubes in parallel, and discrete components for the drive amplifier circuit, and the circuit is reliable It has better performance and stable work. The disadvantage is that the circuit is complicated and the maintenance is not convenient. The second-generation products include Foshan Dexing and Fujibao induction cookers, 3 LM339 for control circuit, large loop oscillation working principle, heat preservation function realized by hardware circuit (using 74Lsl45), power tube using IGBT, reliability is acceptable, the disadvantage is the circuit More complicated, the repair rate is slightly higher. The third-generation products include Midea PSD series products and Zhejiang Yongkang induction cooker products. Midea's PSD series products adopt the principle of large loop oscillation, and its protection circuit is very complete. It focuses on solving the problems that have long troubled other domestic manufacturers such as sudden unplugging and burning during the work process. It is the first more mature domestic induction cooker product using IGBT. . The disadvantage is that the circuit is a bit complicated and maintenance is not convenient. Jialing induction cooker is developed and produced by Shenzhen Topband Co., Ltd. The control board part adopts independent oscillation unit, which has good reliability. The disadvantage is that the circuit is more complicated and the production test is inconvenient. The fourth-generation products include Midea PD series products and Guangdong Nanhai Willybao induction cooker. Midea PD series products are characterized by simple and reliable circuit design, good working reliability, and the cost of PD series products has been reduced. Weilibao induction cooker is designed and produced by Shenzhen Topband Co., Ltd., and it is the first domestic product to improve the Panasonic induction cooker. Its reliability index is equivalent to that of Panasonic induction cooker. For more information, you can consult Foshan Technology Co., Ltd. Thank you! Previous post: What are the precautions of induction cooker? Next: How to choose an induction cooker?