RU2573238C2 - Relay for turning on system block - Google Patents

Abstract

FIELD: physics, computer engineering.

SUBSTANCE: invention relates to computer engineering and can be used in desktop computers. A relay for turning on a system block consists of a switching device in the form of a normally closed electromagnetic relay, wherein upon turning on the computer, the relay coil, connected through a current-limiting resistance, carries voltage and normally closed contacts, connected in parallel to the button for turning on the computer which is located on the front panel, are open, the relay has no effect on the operation of the computer, if the computer was turned off for any reason, the relay contacts close, thereby turning on the power supply unit of the computer and the relay, by closing the start-up circuit of the computer, the button S1, which is normally closed in the circuit, is designed to allow checking of manual switching from the start-up button on the front panel of the system block, upon pressing and holding of which the computer is turned on through the start-up button.

EFFECT: enabling automatic switching of system blocks.

1 dwg

Description

Technical field

The invention relates to the field of computer technology and can be used in stationary computers that are in constant operation, without a long shutdown in more than a few minutes, and without the constant presence of personnel.

State of the art

An analogue of the invention is the internal software configuration of some BIOS computers to automatically turn on the computer when electricity occurs.

Power on - turns on the computer when electricity appears.

Last state - turns on the computer when electricity appears, if during a power outage the computer was in working condition.

The system unit enable relay is installed in computers where the BIOS does not have settings to automatically turn on the computer when electricity occurs. Setting the BIOS to turn on the computer is a software feature of some computers. The system unit enable relay is an electrical device that performs the function of turning on the computer.

As a result of voltage surges, power failure or overheating of the computer’s power supply, it turns off, which is unacceptable for computers operating in industrial facilities without shutting down for signaling, transmitting information, and alarm messages. A prolonged shutdown of the computer can lead to serious emergency consequences. Turning on the computer manually manually may not be immediately possible, since it can be located in hard-to-reach areas, at a great distance from people, the delivery of service personnel to which can reach several hours, or even days. Solving problems with power supply using uninterruptible power supplies does not lead to the desired result, because the voltage at its output does not stabilize. There is also a shutdown of the uninterruptible power supply itself as a result of power outages, which leads to a computer shutdown before the arrival of maintenance personnel. Installation of more expensive uninterruptible power supplies in areas with a large number of computers requires large financial costs for the purchase of UPS, maintenance and replacement of batteries. Additional installation of stabilizers will also lead to an increase in costs and failures due to an increase in the number of equipment.

To independently turn on the system units without automatically turning on, a small-sized electromagnetic relay K1, operating on a voltage of 12 V, having normally closed contacts K1.1, which are soldered in parallel with the computer’s power button located on the front panel, is used as a switching (turning on computer) device. The contacts of the relay coil K1 are connected to the contacts of the free connector of the computer power supply unit for powering internal devices with a voltage of 12 V through the limiting resistance R1.

During computer operation, the relay coil K1 is energized and normally closed contacts K1.1, connected in parallel to the button, are open, the relay does not affect the operation of the computer. If the computer shuts down due to any reason, the contacts of relay K1 close and turn on the power supply of the computer, and the relay turns on and opens the start-up circuit of the computer. The start of the system and the work program should occur automatically.

The S1 button, normally closed in the circuit, is designed to enable manual activation from the start button on the front panel of the system unit. To do this, press and hold the S1 button, then press the start button and release both buttons.

The circuit uses an electromagnetic relay K1-G2R-14-T130-12VDC, a resistor R1-mlt-0.5-100 Ohm, a button S1-PKn6-1.

Claims (1)

The power relay of the system unit, consisting of a switching device, which is used as an electromagnetic relay with normally closed contacts, and when you turn on the computer, the relay coil connected through the current-limiting resistance is energized and normally closed contacts are connected in parallel to the power button of the computer located on front panel, open, the relay does not have any effect on the computer, if the computer shuts down as a result of any reason, contacts the relays are closed, including the computer power supply and the relay, opening the start-up circuit of the computer, the S1 button, normally closed in the circuit, is designed to enable manual activation from the start button on the front panel of the system unit, when pressed and held, the computer is turned on through the start button.