Voice coil motor on the hard disk, the voice coil motor downstream industry into a new round of economic cycle which brings voice coil motor market demand expansion, voice coil motor industry sales picked up significantly, supply and demand has been improved, the industry's profitability steadily improved. Voice coil motor is facing huge market investment opportunities, more and more enterprises are now aware of the advantages of linear motor, linear motor has been widely used, this paper describes the application of the hard disk voice coil motor.
First look at the composition of the hard drive, hard drive by the main body, control circuit board and interface components and other components, the plate is a sealed chamber. The internal structure of the hard disk usually refers to the internal structure of the disk body. The control circuit board mainly includes a hard disk BIOS, a hard disk cache (that is, a CACHE) and a main control chip. The hard disk interface includes a power socket, a data interface, and a main and a jumper.
Hard disk is a typical precision motor combination products, there are two linear motors inside, one is the spindle motor, the other is the voice coil motor, where the voice coil motor is responsible for moving the head arm.
Hard disk in the work by the servo motor to control the voice coil motor action, so that the head arm accurate tracing. Hard disk voice coil motor is mainly composed of magnets and coils, the magnet is generally a whole, fixed in the hard shell, the coil skeleton and the head arm is generally one, there are some coils without the skeleton, directly attached to the head arm, the head arm has Bearings, the coil position between the magnets, when current through the coil, the coil can be a flexible swing in a certain direction, driven by the action of the head arm, the head arm is also equipped with some head signal processing circuit, the entire circuit, through the flexible PCB to Hard disk main circuit board connection.
Tongmao motor deep voice coil motor field for many years, with advanced technology in Europe and the United States experience, customer demand-oriented design, professional custom-made voice coil motor with reasonable performance, it has low energy consumption, high efficiency and high precision products.
This article originates from Kunshan Tongmao Electronics Co., Ltd. (
www.tmmotion.com) original company, please indicate the source.
Linear motor