Dissecting the hard drive driven by a coil motor(coil motor)
time£º2018/7/28 click£º9522
Dissecting the hard drive driven by a coil motor. Hard disk is one of the main storage media of a computer. It consists of one or more aluminum or glass discs. The speed and capacity of the hard disk directly determine the speed of the computer. Today, we come together to understand the deep understanding of the lower coil motor.(Sound coil motor) driven hard disk.
The hard disk basically consists of two parts: the control circuit board and the disc body. The control circuit board includes an interface, a DSP processor, a ROM, a cache, a magnetic head drive circuit, and a disk motor drive circuit. The disc body includes a disk cavity, an upper cover, a disc motor, a disc, a head, and a coil motor(a coil motor).
Performance indicator of the hard disk: Speed Speed of the hard disk: refers to the speed of rotation of the hard disk spindle motor, which is generally expressed as the number of rpm per minute. The faster the rotation, the shorter the reading waiting time. However, the increase of the speed also has a series of negative effects such as increased wear, increased temperature, and increased noise. Data Transfer Rate for hard disks: The data transmission rate includes both the External Transfer Rate(also known as the burst transmission rate) and the Internal Transfer Rate. Hard disk cache: is the place where the hard disk and the external bus exchange data.
The motors in the hard drive are brushless motors, that is, coil Motors(coil motors). With the support of high-speed bearings, the mechanical wear is very small and can work continuously for a long time. The high-speed rotating disk produces a significant gyro effect, so it is not appropriate to move when the hard disk is working. Otherwise, it will increase the workload of the bearing. In order to store and read information at high speed, the head of a hard disk drive is of low quality and inertia, so the speed of finding a hard disk drive is significantly faster than that of floppy and optical drives.
The coil motor(coil motor) is a direct-drive motor that usually uses a mechanical structure without iron core. This structure brings many advantages to motion control. Since there is no iron core, no residual magnetism can be considered when the armature current direction changes, and the output thrust of the coil motor is proportional to the armature current, and the linearity is high. Therefore, the thrust can be stable and smooth, and the Yuli control mode can be applied.
Tongmao Motor has been deeply ploughing coil Motors(coil motors) for many years. It has the technical experience of Europe and the United States in the industry. It is designed with customer appeal as the guide and specializes in customizing the most reasonable sound coil Motors(coil motors) for customers. It has low energy consumption and high efficiency. High-precision products.
This article originated from the original company of Kunshan Tongmao Electronics Co., Ltd.(www.tmmotion.com). Please indicate the source.
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