CN2478167Y - Computer power supply device preventing error operation - Google Patents

Abstract

The utility model computer power supply device used to prevent mistaken operation which is composed of a power supply module 1, an anti-phase device inverter 2, a time-delay circuit 3, a relay 4, a photoelectric coupler 5 and a toggle power supply switch 6. When the power supply switch is broken off due to mistaken operation, the power supply can be really switched off after a period of time. Disconnection of the power supply switch will issue the information to the computer for switch-off. After receiving the information about switch-off, the computer immediately enters the switch-off program so that the data and the document can be well protected.

Description

Prevent the computer power supply device of maloperation

The utility model belongs to the computer fittings field, especially relates to the computer power supply device that prevents maloperation.

Compunication in network system usually makes the power supply of computing machine cut off suddenly because of the operation of mistake, causes that system not by the normal procedure shutdown, causes operating system failure.If power supply is cut off computer-chronograph and is being carried out document or data transmission communication, will cause document data to lose, serious meeting makes the network system paralysis.

The purpose of this utility model is to provide a kind of computer power supply device that prevents maloperation; when power switch is disconnected; power supply will be through just really disconnecting after one section time-delay; and the disconnection meeting of power switch is sent the pass machine information to computing machine; after computing machine is received and is closed machine information; enter shutdown programm immediately, data, document are protected.

The purpose of this utility model is achieved by the following technical solution:

The computer power supply device that prevents maloperation is by power module (1), phase inverter (2), delay circuit (3), relay (4), photoelectrical coupler (5) and stir power switch (6) and form, wherein, the positive pole of fundamental power supply is connected with the contact 4 of 1 pin of stirring power switch (6) with relay (4); 3 pin of stirring power switch (6) and the contact 5 of relay (4) and power module (1)+the VI end is connected, and 2 pin of stirring power switch (6) link to each other through 1 pin of resistance R with photoelectrical coupler (5); The negative pole of fundamental power supply and modular power source (1)-the VI end links to each other, and is connected to 2 pin of photoelectrical coupler (5) simultaneously; 1 to 4 pin of modular power source (1) is connected respectively to the dc supply input of computing machine, 1 pin also links to each other with 1 pin of phase inverter (2), 1 pin of delay circuit (3), 1 pin of relay (4), and 2 pin also link to each other with 4 pin of phase inverter (2), 4 pin of delay circuit (3), 4 pin of photoelectrical coupler (5); 5 pin of photoelectrical coupler (5) are connected and are connected with computing machine with phase inverter (2) 2 pin; Output terminal 3 pin of phase inverter (2) are connected with input end 2 pin of delay circuit (3); Output terminal 3 pin of delay circuit (3) are connected with 2 pin of relay (4).

Stir power switch (6) and constitute principal and subordinate's exclusive circuit with relay (4), the direct current fundamental power supply is powered to power module (1) through stirring power switch (6), the required power supply of power module (1) output multichannel computing machine, to computer power supply, the 5 pin level that computing machine is in operation to photoelectrical coupler (5) monitor, when stirring power switch (6) disconnection, the level of photoelectrical coupler (5) 5 pin is by high step-down, the variation of this level value passes to computing machine, computing machine enters shutdown programm after receiving this variation immediately, when photoelectrical coupler (5) 5 pin level change, delay circuit (3) trigger, can guarantee that by the adjustment of delay time relay (4) just discharges after the computer shutdown program is complete, disconnection is finished on the road that promptly powers.

Therefore; the computer power supply device that prevents maloperation of the present utility model; when power switch is disconnected; power supply will be through just really disconnecting after one section time-delay; and the disconnection meeting of power switch is sent the pass machine information to computing machine; computing machine enters shutdown programm after receiving and closing machine information immediately, and data, document are protected.

Be described in further detail the utility model below in conjunction with accompanying drawing.

Fig. 1 is an embodiment synoptic diagram of the present utility model.

As shown in Figure 1, the utility model is by DC-DC power module 1, phase inverter 2, delay circuit 3, relay 4, photoelectrical coupler 5 and stir power switch 6 and form, the a point connects the positive pole of fundamental power supply, is connected with the contact 4 of 1 pin of stirring power switch 6 and relay 4 simultaneously; 3 pin of stirring power switch 6 and the contact 5 of relay 4 and power module 1+the VI end is connected, and 2 pin of stirring power switch 6 link to each other with 1 pin of photoelectrical coupler 5 through resistance R; The negative pole of fundamental power supply through b end and modular power source 1-the VI end links to each other, and is connected to 2 pin of photoelectrical coupler 5 simultaneously; 1 to 4 pin of modular power source 1 is connected respectively to the dc supply input of computing machine, 1 pin also links to each other with 1 pin of phase inverter 2,1 pin of delay circuit 3,1 pin of relay 4, and 2 pin also link to each other with 4 pin of phase inverter 2,4 pin of delay circuit 3,4 pin of photoelectrical coupler 5; 5 pin of photoelectrical coupler 5 are connected with 2 pin of phase inverter 2 and are connected with computing machine through the C end; Output terminal 3 pin of phase inverter 2 are connected with input end 2 pin of delay circuit 3; Output terminal 3 pin of delay circuit 3 are connected with 2 pin of relay 4.

The circuit working process is as follows:

Close and stir power switch 6, promptly 1,3 pin are connected, the decent a end of fundamental power supply enters 1 pin of stirring power switch 6, go out from 3 pin of stirring power switch 6, enter power module 1+VI, from power module 1-VI goes out that to get back to fundamental power supply through b end negative, this moment, power module 1 entered duty, 1～4 end has voltage to export computing machine to, power module 1 is through 1 simultaneously, 2 pin are to phase inverter 2, delay circuit 3, relay 4 power supplies, by phase inverter 2, delay circuit 3, relay 4, the control circuit that photoelectrical coupler 5 constitutes enters duty, this moment is owing to 1 of photoelectrical coupler 5,2 pin do not have electric current, so 5 pin of photoelectrical coupler 5 are output as high level, this high level is delivered to computing machine, the expression open state, import through 2 pin of phase inverter 2 simultaneously, be converted to low level when exporting by 3 pin of phase inverter 2,2 pin input through delay circuit 3, thereby blocking delay circuit 3 makes its 3 pin be output as low level, electric current flows out 1 pin that enters relay 4 from the pin 1 of power module 1, come out to enter 3 pin of delay circuit 3 by 2 pin of relay 4, get back to 2 pin of power module 1 by 4 pin of delay circuit 3, so relay 4 adhesives, it is connected to stirs on the power switch 61, the contact 4 of 3 pin, 5 are communicated with, and start process finishes.

During shutdown, stirring power switch 6 disconnects, promptly 1,3 pin disconnect, and 1,2 pin are connected, because the contact 4,5 of relay 4 still keeps being communicated with, this moment, power module 1 still worked on, the decent a end of fundamental power supply enters 1 pin of stirring power switch 6, goes out from 2 pin of stirring power switch 6, enters 1 pin of photo-coupler 5 through dropping resistor R, 2 pin from photo-coupler 5 go out again, get back to fundamental power supply through terminal b.Because 1,2 pin of photo-coupler 5 have electric current to flow through, thus 5 pin level of photo-coupler 5 by high step-down, this low level one tunnel is passed through C terminal and is entered computing machine, sends off signal to computing machine, computing machine enters shutdown programm after receiving this signal immediately; 2 pin that another road enters phase inverter 2 are after phase inverter 2 is anti-phase, 3 pin output high level from phase inverter 2, this high level is from the 2 pin input of delay circuit 3, release delay circuit 3, make delay circuit 3 triggers, through behind the delay time of setting (this time is longer than computer shutdown program required time), output terminal 3 pin of delay circuit 3 become high level by low level, make relay 4 by and the state that closes transfer release conditions to, its contact 4,5 pin disconnect, fundamental power supply and power module 1 path disconnect, the output termination of power module 1, and shutdown process is finished.

Claims (1)

1. prevent the computer power supply device of maloperation, it is characterized in that by power module (1), phase inverter (2), delay circuit (3), relay (4), photoelectrical coupler (5) and stir power switch (6) and form, wherein, the positive pole of fundamental power supply is connected with the contact 4 of 1 pin of stirring power switch (6) with relay (4); 3 pin of stirring power switch (6) and the contact 5 of relay (4) and power module (1)+the VI end is connected, and 2 pin of stirring power switch (6) link to each other through 1 pin of resistance R with photoelectrical coupler (5); The negative pole of fundamental power supply and modular power source (1)-the VI end links to each other, and is connected to 2 pin of photoelectrical coupler (5) simultaneously; 1 to 4 pin of modular power source (1) is connected respectively to the dc supply input of computing machine, 1 pin also links to each other with 1 pin of phase inverter (2), 1 pin of delay circuit (3), 1 pin of relay (4), and 2 pin also link to each other with 4 pin of phase inverter (2), 4 pin of delay circuit (3), 4 pin of photoelectrical coupler (5); 5 pin of photoelectrical coupler (5) are connected and are connected with computing machine with phase inverter (2) 2 pin; Output terminal 3 pin of phase inverter (2) are connected with input end 2 pin of delay circuit (3); Output terminal 3 pin of delay circuit (3) are connected with 2 pin of relay (4).