JP5064551B2 - HDD mounting board and electronic device - Google Patents

Description

The present invention relates to an HDD mounting board to which a plurality of hard disk drives are mounted and an electronic apparatus having the HDD mounting board .

  In general, hard disk drives are recognized as one of the parts that are broken, and there are various protection means such as RAID (Redundant Array of Independent Disks), but it is difficult to completely prevent crashes, and promptly after a crash Continuation of processing is required.

  Therefore, some electronic devices such as personal computers include two hard disk drives (HDD) as storage devices, and these hard disk drives are set to a master mode and a slave mode, respectively. In this case, the master mode hard disk drive is first activated, and when the master mode hard disk drive is broken, the slave mode hard disk drive is activated as a backup.

FIG. 2 shows a main part of an electronic apparatus having such two hard disk drives.
Reference numeral 1 denotes a control board, and one end of an IDE (Integrated Device Electronics) cable 10 is connected to the control board 1. The other end of the IDE cable 10 is connected to connectors (44-pin connectors) 21 and 31 of two 2.5-inch hard disk drives 20 and 30. The hard disk drives 20 and 30 have CS (Cable Select) setting devices 22 and 32 as initial setting devices in the master mode and the slave mode. The CS setting devices 22 and 32 are so-called jumper switches. By operating the CS setting units 22 and 32, one of the hard disk drives 20 and 30 is set to the master mode, and the rest is set to the slave mode.

  The control board 1 is provided with an IDE signal circuit 2, a power supply circuit 3, an operating device 4, and a switching signal circuit 5. The IDE signal circuit 2 generates an IDE signal for setting the master mode and the slave mode of the hard disk drives 20 and 30 regardless of the initial setting of the CS setting units 22 and 32. The power supply circuit 3 outputs operating voltages necessary for the operation of the hard disk drives 20 and 30. The operation device 4 is operated when the mode of the hard disk drives 20 and 30 is to be switched, and has an operation lever 4a that can be switched to a normal position and a backup position. For example, when it is desired to use the hard disk drives 20 and 30 with the initial settings, the operating lever 4a is set to the normal position, and when the mode of the hard disk drives 20 and 30 is to be switched, the operating lever 4a is set to the backup position. The switching signal circuit 5 has two switches for switching the mode of the hard disk drives 20 and 30 regardless of the initial setting of the CS setting units 22 and 32 and the IDE signal of the IDE signal circuit 2 in accordance with the operation of the operation unit 4. Send a signal.

  The IDE cable 10 includes a plurality of lines for guiding the IDE signal, the operating voltage, and the switching signals to the hard disk drives 20 and 30, and in particular, the two lines for the switching signals cross each other. It is a special cable with a shape.

  In addition, as an example having a plurality of devices such as a hard disk drive, there is an electronic device that is activated while sequentially switching each device (for example, Patent Document 1).

JP 2006-251945 A

  As described above, in an electronic device that uses the IDE cable 10 for connection between the control board 1 and the hard disk drives 20 and 30, the IDE cable 10 is a specially designed specially, which increases costs. There's a problem.

The present invention has been made in consideration of the above circumstances, and an object of the present invention is to enable connection between a control board and each hard disk drive without the need for a special cable, thereby reducing the cost, and an HDD mounting board and electronic equipment. Is to provide.

The HDD mounting board of the invention according to claim 1 is provided with a plurality of hard disk drives mounted thereon, and is provided at a position corresponding to each of the hard disk drives, and is electrically connected between a pair of pins for mode setting. A plurality of setting devices having a jumper switch for shutting down, and initially setting each of the hard disk drives to either a master mode or a slave mode; and setting the master mode and slave mode of each of the hard disk drives to an initial of each setting device A first line for guiding an IDE signal for setting regardless of setting to each of the hard disk drives, a second line for guiding an operating voltage to each of the hard disk drives, and a master mode and a slave mode of each of the hard disk drives. initialization and the IDE signal of each setter A switching signal, for switching regardless and a third line that leads to the each hard disk drive.

According to the HDD mounting board and the electronic apparatus of the present invention, the control board and each hard disk drive can be connected without requiring a special cable. Thereby, cost can be reduced.

The block diagram which shows the structure of one Embodiment. The block diagram which shows a conventional structure.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the drawings, the same parts as those in FIG.
As shown in FIG. 1, the CS setting device is removed from the hard disk drives 20 and 30, and 50-pin connectors are employed as the connectors 21 and 31 of the hard disk drives 20 and 30. The connectors 21 and 31 are inserted and connected to one side edge of the HDD mounting board 40 in a state of being adjacent to each other.

  The other side edge of the HDD mounting board 40 is connected to the control board 1 via first and second cables 51 and 52 having a simple configuration.

  The first cable 51 includes one line for transmitting an IDE signal emitted from the IDE signal circuit 2 of the control board 1. The IDE signal transmitted to the control board 1 by the first cable 51 is input to the IDE signal of the connectors 21 and 31 in the hard disk drives 20 and 30 by the first line formed on the HDD mounting board 40, for example, the conductive pattern 41. Each led to a pin.

  The second cable 52 includes a total of three lines for transmitting the operating voltage output from the power supply circuit 3 of the control board 1 and the two switching signals emitted from the switching signal circuit 5. The operating voltage transmitted to the control board 1 by the second cable 52 is supplied to the power supply pins of the connectors 21 and 31 in the hard disk drives 20 and 30 by a second line formed on the HDD mounting board 40, for example, the conductive pattern 42. Each led to The switching signal transmitted to the control board 1 by the second cable 52 is transmitted from the connectors 21 and 31 in the hard disk drives 20 and 30 by a third line formed on the HDD mounting board 40, for example, conductive patterns 43a and 43b. Each is led to a switching signal input pin.

  Then, CS setting units 45 and 46 for mode setting are arranged at positions corresponding to the hard disk drives 20 and 30 on the HDD mounting substrate 40, respectively. The CS setting unit 45 has a jumper switch for conducting or blocking between a pair of pins for mode setting of the connector 21, and initially sets the corresponding hard disk drive 20 to either the master mode or the slave mode. Have been prepared for. The CS setting unit 46 has a jumper switch for conducting or blocking between a pair of pins for mode setting of the connector 31 and initializes the corresponding hard disk drive 30 to either the master mode or the slave mode. Have been prepared for. Normally, one of the hard disk drives 20 and 30 is set to the master mode and the other is set to the slave mode.

The operation will be described.
When an IDE signal based on the control of the electronic device is generated from the IDE signal circuit 2, the master mode and the slave mode of the hard disk drives 20 and 30 are switched regardless of the initial settings of the CS setting units 45 and 46. For example, when an abnormality occurs in the hard disk drive 20 operating as a master, the slave mode hard disk drive 30 is switched to the master mode and immediately started as a backup. By this backup activation, the processing of the electronic device is continued.

  When the operation lever 4a of the operation device 4 on the control board 1 is set to the normal position, the two switching signals generated from the switching signal circuit 5 are maintained at the normal logic level. Thus, the hard disk drive 20 functions as a master and the hard disk drive 30 functions as a slave based on the initial settings of the CS setting devices 45 and 46. When it is desired to cause the hard disk drive 30 to function as a master due to an abnormality of the hard disk drive 20, the operation lever 4a of the operation device 4 may be set to the backup position. In this case, the logical levels of the two switching signals generated from the switching signal circuit 5 change, and the hard disk drive 30 is switched to the master mode regardless of the initial settings of the CS setting units 45 and 46.

  In particular, since the simple HDD mounting board 40 and the simple cables 51 and 52 are used for connecting the control board 1 and the hard disk drives 20 and 30 without using a special IDE cable as in the prior art, the cost is reduced. Reduction can be achieved.

  In addition, this invention is not limited to said each embodiment, A various deformation | transformation implementation is possible in the range which does not change a summary.

  DESCRIPTION OF SYMBOLS 1 ... Control board, 2 ... IDE signal circuit, 3 ... Power supply circuit, 4 ... Operation device, 4a ... Operation lever, 5 ... Switching signal circuit, 20, 30 ... Hard disk drive, 21, 31 ... Connector, 40HDD mounting board, 41 ... 1st track, 42 ... 2nd track, 43a, 43b ... 3rd track, 45, 46 ... CS setter, 51 ... 1st cable, 52 ... 2nd cable

Claims (2)

In the HDD mounting board on which a plurality of hard disk drives can be mounted,
A jumper switch is provided at a position corresponding to each hard disk drive and electrically connected or disconnected between a pair of pins for mode setting, and each hard disk drive is set to either the master mode or the slave mode. Multiple setting devices to be initialized ,
A first line for guiding an IDE signal for setting the master mode and the slave mode of each hard disk drive regardless of the initial setting of each setting device;
A second line for guiding an operating voltage to each of the hard disk drives;
A third line for guiding a switching signal for switching the master mode and the slave mode of each hard disk drive irrespective of the initial setting of each setting device and the IDE signal to each hard disk drive;
An HDD mounting board comprising: An electronic device comprising the HDD mounting board and the control board according to claim 1,
The control board includes a power supply circuit that outputs the operating voltage, an operating device for switching the mode of each hard disk drive, and a switching signal circuit that generates the switching signal according to the operation of the operating device.
An electronic device characterized by that.

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