JPH0457274A - Magnetic disk device and magnetic disk enclosure fitting substrate for said disk - Google Patents

Abstract

PURPOSE:To easily increase memory capacity by providing a magnetic disk enclosure on a substrate equipped with plural magnetic disk enclose fitting part, one magnetic disk control means and a switching means. CONSTITUTION:A magnetic disk enclosure fitting substrate 40 is equipped with plural magnetic disk enclosure fitting parts 33 to fit a compact magnetic disk enclosure 32 to a substrate 31. This fitting part 33 mechanically fits the enclosure 33 to the substrate 31, is equipped with contacts and can input control signals to the enclosure 32. On the substrate 31, a read/write circuit 34, servo circuit 35, spindle motor driving circuit 36 and controller circuit 37 are provided. This circuit 37 controls the drive of the magnetic disk enclosure designated from a host device through a printed wiring 38 and read/writes a data. In order to increase the memory capacity of the device, a new disk enclosure 39 is fitted to the opening fitting parts 33. Thus, the memory capacity of this device is increased.

Description

[Detailed Description of the Invention] (Summary) It relates to a magnetic disk device and its magnetic disk enclosure mounting board, particularly to a magnetic disk device and its magnetic disk enclosure mounting board to which a plurality of magnetic disk enclosures can be attached. In order to increase the capacity of the magnetic disk drive and to reduce the size and weight of the device, a magnetic disk device is provided with a plurality of magnetic disk enclosure mounting portions on a substrate, a magnetic disk control means, and the magnetic disk enclosure mounting portion. and a switching means for switching connection to the magnetic disk control means, and one or more magnetic disk enclosures are provided on a magnetic disk enclosure mounting board.

[Industrial application field]

The present invention relates to a magnetic disk device and its magnetic disk enclosure mounting board, and more particularly to a magnetic disk device and its magnetic disk enclosure mounting board to which a plurality of magnetic disk enclosures can be attached. [Prior Art] In general, a magnetic disk device includes: As shown in FIG. 3, the system is configured by connecting host devices 10 and 11 (two in this example) through the 5CSI interface 12.
The magnetic disk device 1 is activated by a command from the host device 10.11.
3.14 performs a read/write operation. still,
Reference numeral 15 in FIG. 3 indicates another 5C3I control device.

As shown in FIG. 5, the general structure of the magnetic disk device 13, 14 includes a magnetic disk 17, a spindle motor 18 that rotates the magnetic disk 17, a magnetic head 19 that reads and writes to the magnetic disk 17, and a spindle motor 18 that rotates the magnetic disk 17. As shown in FIG. 4, a magnetic disk enclosure 16 comprising a voice coil motor 20 for moving a magnetic head 19 is combined with a control board 21. As shown in FIG. 4, this control board 21 includes a read/write circuit 22 that controls reading and writing of the magnetic head, a servo circuit 23 that controls the drive of the voice coil motor, and a servo circuit 23 that controls the drive of the spindle motor. The structure includes a spindle motor drive circuit 24 for controlling the apparatus, and a controller circuit 25 for controlling the entire apparatus.

[Problem to be solved by the invention]

By the way, in the above-mentioned system, when increasing the storage capacity of the entire system, a magnetic disk device is added. In such a case, it is necessary to connect the magnetic disk device, which is a combination of the above-described magnetic disk enclosure and control board, using a cable.

As mentioned above, with the trend of miniaturization of computers in recent years,
If a magnetic disk device cable is used to expand the storage capacity in response to the demand for increased storage capacity, there is a problem in that it cannot meet the demand for miniaturization of the device.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a magnetic disk device and its magnetic disk enclosure mounting board that can easily increase the storage capacity and make the device smaller and lighter.

[Means to solve the problem]

In the present invention, a first means for solving the above problem is to provide a plurality of magnetic disk enclosure mounting portions 2 and one magnetic disk control means 3 on a substrate 1, as shown in FIG. , characterized in that one or more magnetic disk enclosures 5 are provided on a magnetic disk enclosure mounting board 6 which is provided with a switching means 4 for switching the connection to the magnetic disk control means 3 in the magnetic disk enclosure mounting portion 2. It is a magnetic disk device.

A second means for solving the above problem is to provide a plurality of magnetic disk enclosure mounting sections 2 on the board 1,
This magnetic disk enclosure mounting board is characterized in that it is provided with a magnetic disk control means 3 of 1, and a switching means 4 for switching the connection to the magnetic disk control means 3 on the magnetic disk enclosure mounting portion 2.

[Effect]

According to the present invention, when it is necessary to increase the storage capacity, the storage capacity can be easily increased by attaching the magnetic disk enclosure to the magnetic disk enclosure mounting board as necessary. Since the magnetic disk controller is provided in the magnetic disk controller, there is no need to provide a magnetic disk controller in each magnetic disk enclosure, and the device can be made smaller and lighter.

〔Example〕

Embodiments of a magnetic disk device and a magnetic disk enclosure mounting board thereof according to the present invention will be described below with reference to the drawings.

FIG. 2 shows an embodiment of a magnetic disk device and its magnetic disk enclosure mounting board according to the present invention. In this embodiment, the magnetic disk device is built into a portable computer, for example, and is built into the main body of the device. The magnetic disk enclosure mounting board 40 is provided with a plurality of magnetic disk enclosure mounting portions 33 on the board 31 to which small magnetic disk enclosures 32 are mounted. This magnetic disk enclosure mounting portion 33 is attached to the magnetic disk enclosure 3.
2 is mechanically attached to the substrate 31 and has contacts, so that control signals can be input to the magnetic disk enclosure 32. A read/write circuit 34 for controlling read/write of a magnetic head as magnetic disk control means, a servo circuit 35 for controlling the drive of the voice coil motor, a spindle motor drive circuit 36 for controlling the drive of the spindle motor, and a device are disposed on the substrate 31 as magnetic disk control means. A controller circuit 37 is provided for overall control. In this embodiment, the controller circuit 37 serves as a switching means, and controls the drive of the magnetic disk enclosure designated by the host device via the printed wiring 38 to read and write data.

In order to increase the storage capacity of the device, an empty magnetic disk enclosure mounting section 3 is installed as shown in FIG.
Attach a new magnetic disk enclosure 39 to 3. Then, this magnetic disk enclosure 39 is connected to a controller circuit 37, a spindle motor drive circuit 36, a servo circuit 35, and a read/write circuit 34 provided on the board, and the storage capacity of this magnetic disk device increases.

According to this embodiment, since the magnetic disk control means is provided on the magnetic disk enclosure mounting board 40, there is no need to provide a magnetic disk control means on each magnetic disk enclosure, and the device can be made small and lightweight. can do.

(Effects of the Invention) As described above, according to the present invention, a magnetic disk device is provided with a plurality of magnetic disk enclosure mounting portions on a substrate, one magnetic disk control means, and the magnetic disk enclosure mounting portion is provided with a plurality of magnetic disk enclosure mounting portions. Since one or more magnetic disk enclosures are provided on a magnetic disk enclosure mounting board equipped with switching means for switching the connection to the disk control means, when it is necessary to increase the storage capacity, the magnetic disk enclosure mounting board is equipped with a magnetic disk enclosure mounting board. Storage capacity can be easily increased by installing disk enclosures as needed.In this case, since a magnetic disk control device is provided on the magnetic disk enclosure mounting board, each magnetic disk enclosure has a magnetic disk control device. There is no need to provide a device, and the device can be made smaller and lighter.

[Brief explanation of the drawing]

FIG. 1 is a principle diagram of the present invention, FIG. 2 is a perspective view showing an embodiment of a magnetic disk device and its magnetic disk enclosure mounting board according to the present invention, FIG. 3 is a block diagram showing a conventional technique, and FIG. This figure is a perspective view showing the structure of a conventional magnetic disk device, and FIG. 5 is a partially cutaway perspective view showing the structure of a magnetic disk enclosure. 1... Substrate 2... Magnetic disk enclosure mounting part 3... Magnetic disk control means 4... Switching means 5... Magnetic disk enclosure 6... Magnetic disk enclosure mounting board

Claims (1)

[Claims] 1) A plurality of magnetic disk enclosure mounting portions (2) on a substrate (1), one magnetic disk control means (3),
One or more magnetic disk enclosures (5) are attached to a magnetic disk enclosure mounting board (6) which includes a switching means (4) for switching the connection to the magnetic disk control means (3) in the magnetic disk enclosure mounting portion (2). ) is provided. 2) a plurality of magnetic disk enclosure mounting portions (2) on the substrate (1); one magnetic disk control means (3);
A magnetic disk enclosure mounting board characterized in that the magnetic disk enclosure mounting portion (2) is provided with switching means (4) for switching the connection to the magnetic disk control means (3).