Micro motor micro motor is refers to the diameter of less than 160 mm or motor rated power is less than 750 mw. Various kinds of micro motor, generally can be divided into dc motor, ac motor, from the Angle of motor, stepping motor, rotating transformer, axial Angle encoder, ac/dc motor, tachogenerator, inductosyn, linear motor, piezoelectric motor, motor unit and other special motors 13 categories. As modern consumption increased year by year, people to consume more and more in the field of household electrical, automotive, however, as the power source of the products, the market demand of micro motor are also growing. In recent years popular brand tesla tesla is three-phase ac induction motors. According to the data, as at present, China's consumption of the micro motor has accounted for more than 60% of the global micro-motor. Through the overall data of point of view, our country higher than the share of micro-motor consumption market. In the developed world, but, on the average Numbers of micro motor family average ownership of between 80 to 130 units, but only between 30 to 60 in China. It is not difficult to find that can rise space is very big still. Now communications, miniature video, consumer electronics and medical equipment industry development fast fierce, micro motor and widely used. Micro motor market shows a strong demand for a long time. But the micro motor production process is relatively complex, precision and power consumption demand is higher, so there is a great innovation of space to grow up. Our country is not only a miniature motor power consumption is also the world's largest miniature motor manufacturing base. Private enterprises in our country is basically mid-range of micro-motor products. The enterprise products belong to the intermediate product, but after years of development, private enterprises in the industrial supporting and comprehensive production capacity with strong market competitiveness. If than the technology ways, compared with the traditional electric power in our country there are still some gaps. Domestic micro motor development of the industry development is not balanced problem exists. From the point of micro motor enterprise distribution, enterprise development especially in the coastal area in China. The pearl river delta region mainly by the production of information network, home appliance, industrial fields of various kinds of micro motor field. Products for brushless dc motor, brushless dc motor, single phase asynchronous motor, etc. , products accounted for 10% of global product compared to the total amount. The Yangtze river delta region is the production of micro-motor parts, the most concentrated areas, industrial supporting ability gradually mature. Micro-motor industry development in the coastal area while make great progress, but still predominantly low-end domestic motor, have a certain distance with foreign products in the high-end. With the domestic technology level not reached the international leading level. Control chip is the soul of the motor and drive technology, the current domestic motor control chip aggregate demand has accounted for more than 40% of the world, but about 80% of the motor control chip are dependent on imports, motor control chip localization rate is very low. As the basis of the micro motor industry, motor control chip with high barriers to capital and high technology as always, the two high characteristic determines the final can have a say in the field of control chip enterprises must have a very strong strength. Especially the high reliability of the motor system need motor, control chip and system design tripartite participation, which started relatively late in domestic motor control chip makers, both in technical strength and popularity is difficult to compete with foreign rivals. Current motor control chip of the main technology in foreign countries, so the development of domestic micro motor or restricted by foreign, restricted by the semiconductor industry abroad, in particular, it is disadvantage for the development of motor industry. Able to participate in the competition of domestic enterprises is not much, even to participate in the competition, also hard to support the motor rapid development needs. Therefore, domestic motor chip industry through technical innovation urgently needed to break the monopoly of foreign manufacturers.
