Elevator industry development

At present, China is the world's largest elevator producer, consumer and exporter. According to industry association data, elevator production and sales in 2015 were close to 800,000 units. The market share of local elevator brands has reached 46%, showing an increasing trend year by year; Foreign brands accounted for 54% of the decline year by year. In 2015, Shanghai Mitsubishi Elevator sold 70,012 elevator products, an increase of 4.52% over the previous year.

Brief introduction of permanent magnet tractor

At present, China's permanent magnet synchronous traction machine manufacturers have reached about 50, including Suzhou Tongrun drive, Ningbo Xinda, Hangzhou Younide, Ningbo Shenling, Suzhou Witte, Jinteisheng, Shaanxi Qinchuan, Shenyang Blu-ray, Xuchang Boma, Shanghai Jiti, Montenali, Santas, Liuzhou Kaidi and other professional manufacturers, Its application ratio in new passenger elevators has reached more than 80%.

Energy-saving characteristics of permanent magnet tractor

According to the China Elevator Association estimates, the average daily electricity consumption of each elevator in China is about 40kWh, accounting for about 5% of the entire building energy consumption. Elevator power consumption is huge, is one of the largest energy consumption equipment in high-rise buildings. Due to the application of rare earth permanent magnet NdFeb, the elevator tractor has the advantages of small size, low loss, high efficiency, low noise and so on, and has developed into the mainstream model of the new tractor, and occupies the mainstream position in the market. Installation of permanent magnet synchronous traction machine room elevator technology, elevator in the entire building energy consumption is expected to be controlled at about 3%, the average annual saving of each elevator 3000-5000 yuan electricity.

The direction of future demand

The future market demand for energy-saving elevators mainly includes four aspects, one is the new demand (including rail transit construction), the second is the replacement of old elevators, the third is the energy-saving transformation of old elevators, and mandatory measures such as elevators must be installed in buildings above four and four floors. Public data show that by the end of 2015, there are about 80,000 to 100,000 elevators with a service life of more than 15 years. The number of elevators operating for more than 15 years will rise sharply in the future, reaching 400,000 units by 2020.

As a driving part of the elevator traction machine, its energy consumption accounts for more than 80% of the elevator power consumption, so the use of energy-saving permanent magnet synchronous traction machine has special significance. With the promotion of energy conservation and environmental protection in China, as well as the continuous improvement of permanent magnet synchronous traction machine technology, the application of permanent magnet synchronous gearless traction machine products will be more extensive, and eventually will 100% replace the traditional traction machine. Rare earth permanent magnet Ndfeb is an important material to achieve energy saving and environmental protection permanent magnet tractors, and its application will expand with the development of permanent magnet tractors. , Shao, Zhejiang Province