2.2 Micro-motors for information processing equipment
Information processing equipment accounts for 29% of micro-motors: including information input, storage, processing, output, and conduction, including communication equipment. The world needs 1.5 billion sets (sets) each year, mainly including permanent magnet DC motors, brushless DC motors, stepper motors, and micro synchronous motors. The annual output of microcomputers (PCs) is about 100 million units in 2000, and 200 million units are expected in 2005. The demand for micro-motors for key components is large and the requirements are getting higher and higher. Most of these motors are precision permanent magnet brushless motors and precision stepper motors.
Their characteristics and development direction are:
(1) High investment products
This kind of motor has very high requirements on the stability of the rotational speed and the runout of the rotating shaft. Therefore, this type of motor is a high-tech and high-investment product combining advanced manufacturing technology and emerging power electronics technology. The international market is generally concentrated in the development of large companies. produce.
(2) miniaturization and flaking
In order to meet the demand for miniaturization and carry-on of information products, the requirements for miniaturization and flaking of the motor have been proposed.
(3) High speed
As the storage density of computer peripherals continues to increase, the required motor speed should be above 8000r/min.
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