CN201789170U

CN201789170U - Power supply socket for computer

Info

Publication number: CN201789170U
Application number: CN201020522442XU
Authority: CN
Inventors: 温怀疆
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-09-09
Filing date: 2010-09-09
Publication date: 2011-04-06
Anticipated expiration: 2020-09-09

Abstract

The utility model provides a power supply socket for a computer, comprising a power supply socket body; the power supply socket body is internally provided with a manual triggering starting circuit and a field effect tube delay circuit, a capacitor voltage reducing circuit, a USB interface voltage detecting circuit and a relay driving circuit which are connected mutually; and the USB interface voltage detecting circuit comprises a USB interface which can be connected with the USB interface of the computer. After the computer is shutdown, the power supply socket detects that the computer is shutdown by the USB interface voltage detecting circuit, thus delaying automatically for power failure by the field effect tube delay circuit, being capable of realizing complete cut-off of power supplies of the computer under the shutdown state and peripherals, saving energy and improving safety.

Description

A kind of Power supply for computer socket

Technical field

The utility model relates to supply socket, relates in particular to the supply socket that is exclusively used in computer power supply.

Background technology

Common computer supply socket on the market now; only be with short-circuit protection; under computer is in off-mode; itself does not cut off the electricity supply socket; therefore the power supply of main frame is in the "on" position of consumed power always; and, also there is potential safety hazard aspect fire safety, the anti-lightning strike destruction because do not cut off the power supply.Though some intelligent computer sockets have also been arranged now on the market, but these sockets also are behind shut down of computer, socket can cut off the power supply of controlled computer peripheral equipments such as display automatically after some seconds, itself does not cut off the power supply host computer, and facts have proved that main electric energy loss at this moment is still from main frame.

Show according to valid data, the active loss that computer is under the off-mode is 3-8W, reactive loss is 15-40VAR, LCD display is less, CRT monitor big slightly worked 8 hours by office, every computer of unit every day, shut down 16 hours, calculate according to 8,000 ten thousand of present China computer owning amounts, annual only one of off-mode power consumption can be saved more than 2,000,000,000 degree.(5W * 16 * 365 * 80000000=23.36, hundred million degree), and under the computer shutdown state, reactive loss is also up to 1.6 * 106KVAR.It also is very huge that line loss of bringing thus and power capacity take loss.

Summary of the invention

Technical problem to be solved in the utility model provides a kind of Power supply for computer socket that cuts off the power supply automatically behind shut down of computer.

For solving the problems of the technologies described above, the utility model by the following technical solutions:

Described socket comprises the supply socket body, be provided with interconnected manual activation start-up circuit and field effect transistor delay circuit, capacity voltage dropping circuit, USB interface voltage detecting circuit, relay drive circuit in the described supply socket body, described USB interface voltage detecting circuit comprises the USB interface that can link to each other with computer USB interface.

The utility model compared with prior art has the following advantages: the utility model is behind shut down of computer, detect shut down of computer by the USB interface voltage detecting circuit, thereby by field effect transistor delay circuit automatically time-delay power-off, can realize computer under the off-mode and peripheral hardware are cut off the electricity supply fully, energy savings improves fail safe.

Description of drawings

The utility model is described in further detail to utilize accompanying drawing, but the embodiment in the accompanying drawing does not constitute any restriction of the present utility model.

Fig. 1 is set circuit theory diagrams in the utility model supply socket body.

Fig. 2 is a use reference diagram of the present utility model.

Embodiment

With reference to accompanying drawing.The utility model comprises the supply socket body, be provided with interconnected manual activation start-up circuit and field effect transistor delay circuit, capacity voltage dropping circuit, USB interface voltage detecting circuit, field effect transistor delay circuit, relay drive circuit in the described supply socket body, described USB interface voltage detecting circuit comprises the USB interface that can link to each other with computer USB interface.

Wherein, manual activation start-up circuit and field effect transistor delay circuit are used to manually start socket power, and delay cut-off, the manual activation start-up circuit mainly comprises button AN1, described field effect transistor delay circuit comprises interconnected resistance R 2, resistance R 3, resistance R 4, technotron T1, capacitor C 3 and voltage stabilizing didoe D6, these two circuit can be collectively referred to as manual activation startup field effect transistor delay circuit in fact, and described manual activation startup field effect transistor delay circuit is managed T2, T3 with PNP, resistance R 5 drive circuits link to each other.This delay circuit has used the characteristics of technotron neatly, when realizing the loss of voltage when capacity voltage dropping circuit, the voltage at integrating capacitor C3 two ends also rapidly disappears, thereby guarantees the triggering at once of outage back, the time of power supply delay cut-off and a preceding basically identical;

Described capacity voltage dropping circuit comprises interconnected capacitor C 1 and capacitor C 2, rectifier diode D1-D4, described capacity voltage dropping circuit links to each other with relay contact KC ', and its effect is to provide an about 50V, the power supply of 5mA for relay drive circuit, specifically, utilize capacitance decompression and 48V relay K C, realize low cost, the low power consumption control socket power, comprise and cut off self power supply, thereby reach the purpose of energy-saving low-carbon;

Described USB interface voltage detecting circuit links to each other with computer USB interface, and also comprises interconnected resistance R 1, light-emitting diode D5 and photoelectrical coupler IC1.Can obtain 5V voltage from USB interface during computer booting, detect main frame by optical coupler and can determine that computer is in open state, be zero otherwise USB interface obtains voltage, and then the decidable computer is in off-mode.This case is discerned computer operating state by it, realizes that computer does not cut off socket power under standby and resting state, and only just cut off socket power under off-mode;

Visible USB power supply indicator 2 among Fig. 2.

Described relay drive circuit comprises interconnected relay contact KC ', PNP pipe T2, T3, diode D6, D7, resistance R 5, the relay K C that links to each other with socket power.This relay drive circuit is used for driving relay and opens or close socket power.

Operation principle of the present utility model is as follows: when pressing manual activation start button AN1, voltage about capacity voltage dropping circuit output 50V, this voltage adds reverse voltage for the grid of technotron T1 by R3, and technotron T1 is in cut-off state, this time-division three kinds of situations:

1) if this computer-chronograph is not in starting state yet, photoelectric coupler output end also is in cut-off state, charge by 4 pairs of capacitor C of resistance R 3 in this while 50V voltage, and add negative pressure for technotron T1 grid, and T1 ends, and this moment, PNP pipe T2 ended, PNP pipe T3 conducting, relay K C gets, its contact KC ' closure, socket is in "on" position, after about 15 seconds, when capacitor C 3 both end voltage will add 0.7V greater than voltage stabilizing didoe voltage, PNP pipe T2 conducting this moment, PNP pipe T3 ends, relay K C dead electricity, and its contact KC ' discharges, socket is in off-position again, at this moment, technotron T1 grid negative pressure disappears, the T1 conducting, capacitor C 3 both end voltage will be rapidly zero, thereby when guaranteeing to start at once, the C3 both end voltage is zero, the purpose of each delay time basically identical when reaching continuous frequent starting.

2) if this computer-chronograph also is in starting state, computer is given the photoelectrical coupler input signal by USB port, resistance R 1, light-emitting diode D5, this moment, photoelectric coupler output end also was in conducting state, though the T1 grid voltage is negative, T1 ends, but this moment, power supply still can't be by 3 chargings of 4 pairs of capacitor C of resistance R, PNP pipe T2 ends always, PNP pipe T3 conducting always, and relay K C gets, its contact KC ' closure, socket is in "on" position.

3) if turn off computer this moment, USB port voltage is zero, then repeats 1) process cut off all power supplys after 15 seconds automatically.

By above technical scheme, the utility model adopts the mode of manual activation time-delay outage in 15 seconds to guarantee the normal startup of computer when starting, creativeness has been utilized the characteristic of technotron, realize rapidly the charge discharging resisting on the integrating capacitor being fallen after the outage, make it not influence the delay time that starts later, that is to say this circuit, no matter how you are continuously by starting button, time-delay all is about 15 seconds; Creatively utilize USB interface to detect, realize that host work is when (comprising standby, resting state), power supply is kept connection, and after the main frame shutdown, socket can cut off all power supplys automatically and comprise self power supply after some seconds, realize real zero power consumption, the purpose of economize on electricity low-carbon (LC), during the utility model operate as normal, energy consumption is less than 0.5W.

The utility model can be realized computer under the off-mode and peripheral hardware are cut off the electricity supply fully.

Should be noted that at last; above embodiment is only in order to the explanation the technical solution of the utility model; but not to the restriction of the utility model protection range; although the utility model has been done to explain with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can make amendment or be equal to replacement the technical solution of the utility model, and not break away from the essence and the scope of technical solutions of the utility model.

Claims

1. Power supply for computer socket, it is characterized in that described socket comprises the supply socket body, be provided with interconnected manual activation start-up circuit and field effect transistor delay circuit, capacity voltage dropping circuit, USB interface voltage detecting circuit, relay drive circuit in the described supply socket body, described USB interface voltage detecting circuit comprises the USB interface that can link to each other with computer USB interface.

2. a kind of Power supply for computer socket as claimed in claim 1, it is characterized in that described manual activation start-up circuit comprises button (AN1), described field effect transistor delay circuit comprises interconnected resistance (R2), resistance (R3), resistance (R4), technotron (T1), integrating capacitor (C3), voltage stabilizing didoe (D6), and described field effect transistor delay circuit links to each other with the relay drive circuit that PNP pipe (T2), resistance (R5), PNP pipe (T3), relay (KC) constitute.

3. a kind of Power supply for computer socket as claimed in claim 1 is characterized in that described USB interface voltage detecting circuit also comprises interconnected resistance (R1), light-emitting diode (D5) and photoelectrical coupler (IC1).

4. a kind of Power supply for computer socket as claimed in claim 1 is characterized in that described relay drive circuit comprises that the interconnected relay contact that links to each other with socket power (KC '), PNP pipe (T2), PNP manage (T3), diode (D7), resistance (R5) and relay (KC).