CN2439682Y

CN2439682Y - Computer main unit equiped with double hard-disc

Info

Publication number: CN2439682Y
Application number: CN 00222139
Authority: CN
Inventors: 曾安军; 李燕
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-01-21
Filing date: 2000-01-21
Publication date: 2001-07-18
Anticipated expiration: 2010-01-21

Abstract

The utility model discloses a computer main unit provided with double hard discs. A network connecting switch which is connected between a network cable and a network card and a three-selecting-one switch which is composed of switches A, B and C are arranged on a front panel of a machine case. The switch A and the switch B are respectively connected between a computer power supply and the hard disc 1 and between the computer power supply and the hard disc 2. The switch C is a double-pole single throw switch which is connected between the computer power supply and the two hard discs. A switch which is interlocked with the switch C is connected between two inserting pins of a master / single jump wire of the hard disc 2 in series. A master / single jump wire of the hard disc 1 is in a normally-closed connection. The computer main unit provided with double hard discs has advantages that the network is convenient to switch on and switch off, and special-purpose hard discs are respectively utilized to process the inner part and the network information.

Description

Main frame with two hard disk configurations

The utility model relates to computer hardware, the main frame when especially using two hard disk.

At present, two hard disks being installed on a computing machine if desired, generally all is both to be connected with master-slave mode use.According to such using method, if virus on the File Infection on hard disk, then also infective virus possibly of the file on another hard disk; In addition, if computing machine uses in network environment, then be kept at two secret informations on the hard disk and all might be subjected to hacker's attack and cause and divulge a secret.Two hard disks are separately independent to be used if want, and then need take the change that disconnects with wire jumper that cabinet carries out the hard disk electric power incoming line apart and connect.

The purpose of this utility model is to overcome above-mentioned weak point and a kind of main frame with the configuration of two hard disks is provided, be connected switch by the hard disk selector switch that is arranged on the case front panel with network, can select one of them hard disk to work alone easily, perhaps two hard disks are worked simultaneously, and the while can disconnect easily and recover being connected of computer and network.

The purpose of this utility model is realized by the following technical programs:

A kind of main frame with two hard disk configurations comprises cabinet, places the computer power supply in the cabinet, and central processing unit, internal memory and two hard disks, the front panel of this cabinet are provided with network and connect switch, and it is connected between network cable and the network interface card; Also be provided with on this front panel and be used for the three elections switch that hard disk is selected, is made up of switch A, B, C, switch A is connected between the power interface of computer power supply and hard disk 1, switch B is connected between the power interface of computer power supply and hard disk 2, switch C is a double-pole single throw, it be connected computer power supply and hard disk 1 and and hard disk 2 between; Be serially connected with between two contact pins of the master/single wire jumper of hard disk 2-with the switch of switch C interlocking; Two contact pins of the master/single wire jumper of hard disk 1 are done normally closed connection by the wire jumper plug.

According to above technical scheme, promptly on the basis of existing common computer cabinet, on case front panel, increase by two switches.One of them switch be used for connecting and cut off computer on network interface card and the connection between the network cable, if the user handles secret information on computers, then can close this switch, thereby make computer and network from physically breaking away from, at this moment, anyone can't obtain the information that computing machine is preserved from network, if need to be connected with network again, then opens this switch and gets final product.Another switch then is a three elections switch, is the hard disk selector switch, and this switch has only three kinds of possible states, and that the user can only select at every turn is wherein a kind of.First kind of state of this switch is: first hard disk work, and second hard disk do not worked; Second kind of state is: first hard disk is not worked, second hard disk work; The third state is: first and second hard disks are worked simultaneously with principal and subordinate's ways of connecting respectively.The user can (need not take being connected of cabinet conversion hard disk power supply and wire jumper apart) easily more independently works two hard disks installing on the computing machine mutually, also can work together.If separate work, if infect virus on certain hard disk, then the file on another hard disk can not be subjected to any threat, especially in the work of doing some explorations or when carrying out important data processing, can be specially handle on therein the hard disk, so just can avoid the interference of virus.On the other hand, the user can use a hard disk when the processor confidential information, and uses another hard disk in online, so just can remove the danger of divulging a secret because of online from.If the informational needs on two hard disks is intercoursed, then can select the mode that two hard disks are worked simultaneously.In addition, if the user handles is very secret information, then in work, the network that can disconnect easily on the case front panel connects button, with computer and network from physically disconnecting, just can guarantee that like this information on the computing machine is perfectly safe.And in the needs online, can reopen this network and connect switch, make computer and network recover to connect.Adopt another benefit of the present utility model to be, two hard disks can be installed two different systems respectively, and two systems work alone and not influence each other.If two hard disks according to principal and subordinate's ways of connecting, then because all application software must all be installed in the system, in case at this moment system breaks down, then may cause all software all can't use.And employing the utility model, the user can be installed in application software respectively in two different systems according to importance, and at this moment if a system breaks down, another system will be at all unaffected.

Below in conjunction with accompanying drawing the utility model is described in detail.

Fig. 1 is the electrical schematic diagram of three elections switch of the present utility model;

Fig. 2 is the electrical schematic diagram that network of the present utility model connects switch;

Fig. 3 is the arrangenent diagram of the utility model case front panel;

Fig. 4 is the wire jumper connection diagram of hard disk 1 in the utility model;

Fig. 5 is the wire jumper connection diagram of hard disk 2 in the utility model.

Fig. 3 illustrates, and the front panel 11 of mainframe box is provided with floppy drive 7, CD-ROM drive 8, power supply and hard disk duty indication 9, on the basis of above-mentioned common setting, has added the three elections switch 12 that network connects switch D and is made up of switch A, switch B, switch C.Among Fig. 2, network connects switch D one end and connects network cable through network cable interface 4, and the other end connects network interface card 6 through network interface card cable interface 5.Network cable interface 4 and network interface card cable interface 5 all are arranged on the rear panel of cabinet.Network cable interface is positioned on the computing machine rear panel, and network cable can directly be inserted in the outside.Cabinet inside one end of network cable interface is connected switch D with the network on the front panel and is connected, the other end that network connects switch D passes through cable, passing the computer cabinet rear panel links to each other with the network interface card cable interface, this network interface card cable interface is positioned at the outside of computer cabinet rear panel, can directly insert in the socket of network interface card.Be in the close position if network connects switch, then computer and network is in connection status, is in open position if network connects switch, and then computer and network disconnects physically.Fig. 1 illustrates, switch A is connected between the power interface of computer power supply 3 and hard disk 1, switch B is connected between the power interface of computer power supply and hard disk 2, and switch C is a double-pole single throw, and it is connected between computer power supply and the hard disk 1 and between computer power supply and the hard disk 2; Among Fig. 5, be connected in series switch-C between two contact pins of the master/single wire jumper of hard disk 2, switch-C and switch C interlocking, i.e. switch C closure, switch-C then disconnects; Switch C disconnects, and switch-C is then closed.As being embodied as: be connected a relay at switch C with the contact place of hard disk 2, the normally closed contact of relay promptly can be used as switch-C and uses.Fig. 4 illustrates, and two contact pins of the master/single wire jumper of hard disk 1 are done normally closed connection by the wire jumper plug.

During work, referring to Fig. 1, if switch A closure, then switch B and C are in off-state, at this moment, and hard disk 1 work; If switch B closure, then switch A and C are in off-state, and-C closure (referring to Fig. 5,6), two contact pins of the master/single wire jumper of hard disk 2 are connection status, hard disk 2 work; If switch C closure, then switch A and B are in off-state, switch-C disconnects simultaneously, the master/single wire jumper that is hard disk 2 disconnects, and hard disk 1,2 all must be powered, because the master/single wire jumper of hard disk 1 is in normally off (on-state), thereby, hard disk 1 is in the master/single state, and hard disk 2 is in the slave state, and promptly hard disk 1,2 is in common master-slave mode duty.

The utility model can be widely used in mechanisms such as army, government, bank, the tax, developing department and is used for online.

Claims

1, a kind of main frame with two hard disk configurations, comprise cabinet, place the computer power supply in the cabinet, central processing unit, internal memory and two hard disks, it is characterized in that the front panel of described cabinet (11) is provided with network and connects switch D, network connects switch D and is connected between network cable and the network interface card (6); Also be provided with on this front panel (11) and be used for the three elections switch (12) that hard disk is selected, is made up of switch A, B, C, switch A is connected between the power interface of computer power supply (3) and hard disk (1), switch B is connected between the power interface of computer power supply (3) and hard disk (2), switch C is a double-pole single throw, it be connected computer power supply and hard disk (1) and and hard disk (2) between; Be serially connected with switch-C between two contact pins of the master/single wire jumper of hard disk (2), switch-C and switch C interlocking; Two contact pins of the master/single wire jumper of hard disk (1) are done normally closed connection by the wire jumper plug.

2, main frame according to claim 1, it is characterized in that, the network interface card cable interface (5) of network cable interface of described network cable (4) and network interface card (6) all is arranged on the rear panel of cabinet, and described switch D is connected between network cable interface (4) and the network interface card interface (5).