The first stage (from the early 1990s to 2000) is the introduction period of technical products.
Some capable air-conditioning manufacturers have introduced frequency conversion technology and launched related products, and the market has begun to understand such concepts and products.
From 65438 to 0995, Hisense began to accumulate frequency conversion technology, and launched the first domestic frequency conversion air conditioner in April 1997.
Before the localization of related accessories was solved, it was expensive, so it rarely formed large-scale sales.
The second stage (from 2000 to now) is the market introduction period.
Marked by the launch of "Wage Frequency Conversion" by Hisense on March 1 2002, inverter air conditioners began to be gradually promoted in the domestic market, which not only promoted the expansion of market opportunities, but also made many enterprises follow up quickly, and inverter products also became corporate image products.
However, the lack of national standards makes it congenitally deficient.
On June 1 day, 2006, the first compulsory local standard for energy efficiency of inverter air conditioners in China-Shanghai local standard for energy efficiency of inverter air conditioners was officially implemented.
According to the standard, the sEER of the five-level inverter air conditioner is 33, while the seer of the national standard second-level energy-saving constant-speed air conditioner is only 3263, which means that all qualified inverter air conditioners are energy-saving.
On April 16, 2007, the press conference of the first inverter air conditioner in China 10 anniversary was held simultaneously in more than 50 cities in China. Leaders of China Household Electrical Appliances Society attended the meeting, calling on domestic air-conditioning enterprises to promote frequency conversion for building an energy-saving society.
On April 9th, 2007, five air-conditioning giants, Hisense, Hitachi, mitsubishi electric, Toshiba and Panasonic, gathered in Shanghai, and announced the establishment of "Inverter Air Conditioning Promotion Alliance" to start the elimination competition of fixed-speed air conditioners, accelerate the popularization of inverter air conditioners and the elimination of fixed-speed air conditioners, and promote the upgrading of air-conditioning industry in China.
Since September 1 2008, China has implemented the first mandatory energy efficiency standard for inverter air conditioners. Midea, Gree, Chigo and other air-conditioning enterprises have made great strides in the frequency conversion market, and the air-conditioning market has ushered in the frequency conversion era! !