Method of mounting magnetic disk device, cabinet for magnetic disk device, and magnetic disk device
View Patent ↗The invention relates to the construction of an in-vehicle magnetic disk drive and a case for holding the in-vehicle magnetic disk drive. The in-vehicle magnetic disk drive must meet a condition peculiar thereto requiring normal operations under severe temperature conditions. An environment of an excessively low temperature disturbs a normal information recording operation, while an environment of an excessively high temperature makes the retention of recorded information impossible. The case is provided with a cold insulator, a heat insulator, a heat insulating material and a temperature sensor and is set in a specific position. The operation of the magnetic disk drive at temperatures outside a predetermined temperature range is inhibited.
1. A magnetic disk drive holding method of mounting a magnetic disk drive contained in a case and including rotating magnetic disks, magnetic heads for writing or reading information to or from the magnetic disks, and a carriage for moving the magnetic heads on the magnetic disks on a vehicle, said method comprising the steps of:
holding the magnetic disk drive such that the moving directions of the carriage of the magnetic disk drive coincide with a vertical direction relative to the vehicle;
holding the magnetic disks such that the surfaces of the magnetic disks are parallel to a lateral direction relative to the vehicle,
forming an opening in the case; and
disposing the case near an air vent of an air conditioner included in the vehicle.
2. The magnetic disk drive holding method according to claim 1 , wherein the case is provided with a cold insulator for keeping the magnetic disk drive cool or a heat insulator for keeping the magnetic disk drive warm.
3. The magnetic disk drive holding method according to claim 1 , wherein a heater is provided between the disk drive and the case.
4. The magnetic disk drive holding method according to claim 1 , further comprising the steps of:
providing a temperature sensor for measuring the temperature inside the case,
providing a cable for connecting the temperature sensor electrically to an electronic device which performs a predetermined process on the basis of an electric signal provided by the temperature sensor,
sending a notice from said electronic device to said magnetic disk drive if a temperature measured by the temperature sensor is above the upper limit or below the lower limit of a temperature range determined by the normal operation of the magnetic disk drive and,
inhibiting connection to a power supply or issuing a warning on the basis of the notice.
5. The magnetic disk drive holding method according to claim 2 , wherein the cold insulator or the heat insulator serves also as a shock absorber.