CN103207977A - Computer no-standby safety protection circuit - Google Patents

Computer no-standby safety protection circuit Download PDF

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Publication number
CN103207977A
CN103207977A CN2013101144532A CN201310114453A CN103207977A CN 103207977 A CN103207977 A CN 103207977A CN 2013101144532 A CN2013101144532 A CN 2013101144532A CN 201310114453 A CN201310114453 A CN 201310114453A CN 103207977 A CN103207977 A CN 103207977A
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China
Prior art keywords
computer
contact
input
circuit
normally opened
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CN2013101144532A
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Chinese (zh)
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CN103207977B (en
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苏家云
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苏家云
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Priority to CN201310114453.2A priority Critical patent/CN103207977B/en
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Publication of CN103207977B publication Critical patent/CN103207977B/en
Expired - Fee Related legal-status Critical Current
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Abstract

The invention discloses a computer no-standby safety protection circuit which can automatically cut off communication interfaces and power of a computer only by normal shutdown. The computer no-standby safety protection circuit comprises a power switch or starting button, an alternating-current controllable contact device and a direct-current controllable contact device, wherein the alternating-current controllable contact device comprises an alternating-current driving circuit, two groups of power source normally-open contacts, a group of button normally-open contacts, and the direct-current controllable contact device comprises a direct-current driving circuit, two groups of power source normally-open contacts, a group of on and off normally-open contacts and a plurality of groups of communication normally-open contacts. Respective two groups of power source normally-open contacts in the alternating-current controllable contact device and the direct-current controllable contact device are correspondingly abutted one by one and then are serially connected into a live wire and a null wire of an alternating-current power source, and the alternating-current driving circuit is controlled by the starting button and the group of on and off normally-open contacts, which are serially connected. The direct-current driving circuit is controlled by direct-current output voltage of the computer, and a group of starting normally-open contacts is connected to a PW (pulse width) start control end of a computer mainboard. The computer no-standby safety protection circuit can isolate the power grid and external network from the computer.

Description

A kind of computer zero standby safety holding circuit
Technical field
The present invention relates to a kind of safety protective circuit that has the electrical equipment of communication interface, refer more particularly to a kind of computer zero standby safety holding circuit.
Background technology
At present, people are usually after using computer, the common start button (present most of computers) that adopts powered-down switch (early stage computer) or press computer, perhaps selective system shutdown, click the shut down of computer option and close computer, after computer is closed, often because do not want to take the trouble, not forgotten to pull out netting twine, forgotten to cut off being connected between attaching plug and the electrical network on the used plate of computer exactly.A lot of people think, computer is just passable as long as close computer by the shutdown options in the system.The computer user that has the example proof to have does not pull out attaching plug and netting twine after using computer, the hacker opens its camera by its computer of long-range attack, and man and wife's private life of computer user is exposed; And, in actual use, often also can cause damage to the assembly in the computer because of thunder and lightning; At holding state, owing to do not pull out netting twine and cut off being connected between attaching plug and the electrical network on the used plate of computer, and might be struck by lightning and assault, also can cause the awaiting electric energy loss simultaneously.
Summary of the invention
Technical matters to be solved by this invention is: provide a kind of need according to normal running custom shutdown, just can cut off the electricity supply and the zero standby safety holding circuit of computer of the communication interface of computer.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of computer zero standby safety holding circuit, comprise power switch or start button on the computer, AC input cell, exchange output unit, the communication input port, the communication delivery outlet, exchange the controlled contact making device of controlled contact making device and direct current, AC input cell includes: a pair of ac input end with respectively with this input live wire that ac input end is linked to each other and input zero line, the interchange output unit includes: at least one pair of ac output end with respectively with this output live wire that ac output end is linked to each other and output zero line, the controlled contact making device of described interchange includes: AC driving circuit, two groups of power supply normally opened contacts, one group of knob normally opened contact, one group of startup normally opened contact that is used for starting computer, the controlled contact making device of described direct current includes: dc drive circuit, two groups of power supply normally opened contacts, one group with power switch or the start break-make normally closed contact that matches of button and the communication normally opened contact of some groups of connect one to one communication input port and communication delivery outlets; Exchange in two groups of power supply normally opened contacts and the controlled contact making device of direct current in the controlled contact making device two groups of power supply normally opened contacts one by one corresponding and connect after respectively serial connection input live wire with output live wire and input zero line and export between the zero line; One end of described AC driving circuit links to each other with the input live wire, and the other end links to each other with the input zero line with power switch or start button by serial connection break-make normally closed contact together, and described one group of knob normally opened contact is attempted by power switch or start button two ends; The two ends of described dc drive circuit link to each other with the positive and negative output terminal that the direct current of computer is exported respectively; Described one group of startup normally opened contact is connected on the computer main board a pair of for the PW startup control end that starts computer.
The controlled contact making device of described interchange is AC relay, and the controlled contact making device of described direct current is DC relay.
Be provided with anti-lightning strike protector between described input live wire and the input zero line.
Described anti-lightning strike protector for and be carried in input live wire and the voltage dependent resistor (VDR) of importing anti-lightning strike special use between the zero line.
String is provided with overload protective device on the described incoming line.
The overload protective device of described overload protective device for matching with setting electric current and voltage.
Described computer zero standby safety holding circuit also is provided with the commutation circuit that is made of dpdt double-pole double-throw (DPDT) type switch or AC relay and control circuit thereof, and the control circuit of this AC relay is by the control knob and be attempted by one group of normally opened contact these control knob two ends, this AC relay and constitute; A moving contact of described commutation circuit and corresponding normally closed stationary contact are serially connected between output live wire and the corresponding ac output end, and often the open stationary contact corresponding with this moving contact links to each other with the input live wire; Another moving contact of commutation circuit and corresponding normally closed stationary contact be serially connected in the output zero line and and corresponding ac output end between, corresponding with this moving contact stationary contact of often opening links to each other with the input zero line.
Described safety protective circuit also includes quantity and equates single-pole double-throw (SPDT) type by-pass switch with the logarithm of ac output end; the moving contact of by-pass switch and corresponding normally closed stationary contact are serially connected between output live wire and corresponding ac output end or output zero line and the corresponding ac output end; corresponding with it, the stationary contact of often opening of by-pass switch links to each other with input live wire or input zero line.
Described computer zero standby safety holding circuit also is provided with the emergency starting circuit that is made of dpdt double-pole double-throw (DPDT) type switch or AC relay and control circuit thereof, and the control circuit of this AC relay is by the control knob and be attempted by one group of normally opened contact these control knob two ends, this AC relay and constitute; The two ends of described power switch or start knob are serially connected between break-make normally closed contact and the button normally opened contact by a pair of normally closed contact that is made of moving contact and closed type stationary contact of emergency starting circuit respectively, and, moving contact links to each other with power switch or start knob, and a pair of open type stationary contact of emergency starting circuit is also received on a pair of PW startup control end.
Described communication input port, communication delivery outlet are network interface.
The invention has the beneficial effects as follows: the present invention is by exchanging cooperatively interacting of controlled contact making device and the controlled contact making device of direct current, as long as open the power switch (early stage computer) on the computer or press the start button (present most of computers) of computer, just can normally use computer by original operating habit, after computer uses, close the power switch (early stage computer) on the computer or press the start button (present most of computers) of computer, perhaps, the selective system shutdown, click the shut down of computer option, computer system shutdown back cuts off computer and the communication interface in the external world and being connected of power supply automatically, thereby prevented assault effectively, saved the energy simultaneously again; And this computer zero standby safety holding circuit is no matter be the early stage computer that power switch is installed, and most of computers that the start button still is installed at present all are suitable for, and versatility is fine.In addition, be installed in the voltage dependent resistor (VDR) between input live wire and the input zero line and the overload protective device that is serially connected on the incoming line and all improved security of the present invention; In addition, when described computer zero standby safety holding circuit occurs not needing to plug the power lead on the computer when unusual, only need computer directly to be linked to each other with electrical network by commutation circuit; When configuration many during to ac output end, these are many to separate between the ac output end, like this, just can be with after computer be closed, also the equipment that need continue to use (for example router, printer, facsimile recorder etc.) is not connected on on a pair of ac output end with computer, thereby can pass through corresponding by-pass switch, make these equipment not cut off the power supply; Also have, owing to be provided with the emergency starting circuit, even make AC relay and DC relay damage, also can normally open computer, use very convenient.
Description of drawings
Fig. 1 is the structural representation of first kind of computer of the present invention, zero standby safety holding circuit.
Fig. 2 is the structural representation of second kind of computer of the present invention, zero standby safety holding circuit.
Fig. 3 is the structural representation of the third computer of the present invention zero standby safety holding circuit.
Fig. 4 is the structural representation of the 4th kind of computer of the present invention zero standby safety holding circuit.
Embodiment
Below in conjunction with accompanying drawing, describe specific embodiments of the present invention in detail.
As shown in Figure 1, a kind of computer zero standby safety holding circuit, comprise: the booting computer button SB1 on the computer, AC input cell, exchange output unit, network input port WKI, network delivery outlet WKO, AC relay KA1 and DC relay KA2, AC input cell comprises: a pair of ac input end with respectively with this input live wire L1 that ac input end is linked to each other and input zero line N1, described interchange output unit comprises: the two pairs of ac output ends with respectively with this output live wire L2 and output zero line N2 that ac output end is linked to each other, described AC relay KA1 comprises: as the coil of AC driving circuit, two groups of power supply normally opened contacts, one group of knob normally opened contact, one group of startup normally opened contact that is used for starting computer, described DC relay KA2 includes: as the coil of dc drive circuit, two groups of power supply normally opened contacts, one group with power switch or the start break-make normally closed contact that matches of button and the communication normally opened contact of eight groups of connect one to one network input port WKI and network delivery outlet WKO, only adopt the simple and easy network interface of 4 line systems for some, as long as 4 groups of communication normally opened contacts; Two groups of power supply normally opened contacts among two groups of power supply normally opened contacts among the AC relay KA1 and the DC relay KA2 one by one corresponding and connect after respectively serial connection input live wire L1 with output live wire L2 and input zero line N1 and export between the zero line N2; One end of described AC relay KA1 coil links to each other with input live wire L1, the other end links to each other with input zero line N1 by the start button SB1 on serial connection break-make normally closed contact and the computer together, and described one group of knob normally opened contact is attempted by the two ends of the button SB1 that starts shooting; The two ends of described DC relay KA2 coil respectively with computer+the positive and negative output terminal of 12 volts of direct currents output links to each other; Described one group of startup normally opened contact is connected on the computer main board a pair of for the PW startup control end (sign on the computer main board is generally PW) that starts computer.In the present embodiment, be provided with the voltage dependent resistor (VDR) ZNR for overvoltage protection between described input live wire L1 and the input zero line N1; The last string of described input live wire L1 is provided with the overload protective device FR for overload protection, the overload protective device that this overload protective device FR matches for and setting electric current and voltage; Corresponding with two pairs of above-mentioned ac output ends, also include two as dpdt double-pole double-throw (DPDT) type by-pass switch K2 and the K3 of commutation circuit, be example with by-pass switch K2, the moving contact of by-pass switch K2 and corresponding normally closed stationary contact are serially connected between output live wire L2 and the corresponding ac output end, and often the open stationary contact corresponding with this moving contact links to each other with input live wire L1; Another moving contact of by-pass switch K2 and corresponding normally closed stationary contact be serially connected in output zero line N2 and and corresponding ac output end between, corresponding with this moving contact stationary contact of often opening links to each other with input zero line N1; Certainly, also can adopt single-pole double-throw (SPDT) type by-pass switch to substitute dpdt double-pole double-throw (DPDT) type by-pass switch, but owing to one tunnel (live wire or zero line) arranged all the time in connection status, the security meeting is far short of what is expected.
For under the situation of AC relay KA1 and DC relay KA2 damage; also can normally open computer; described computer zero standby safety holding circuit also is provided with the dpdt double-pole double-throw (DPDT) type emergency starting K switch 4 as the emergency starting circuit; the two ends of the described start knob SB1 a pair of normally closed contact that is made of moving contact and closed type stationary contact by emergency starting K switch 4 respectively are serially connected between the pair of buttons normally opened contact of a pair of break-make normally closed contact of DC relay KA2 and AC relay KA1; and; moving contact links to each other with start knob SB1; be linked back the respectively corresponding end of pair of buttons normally opened contact of a pair of break-make normally closed contact of DC relay KA2 and AC relay KA1 of closed type stationary contact, a pair of open type stationary contact of emergency starting K switch 4 is also received a pair of PW and is started on the control end.
On the basis of Fig. 1, when adopting power switch K1 on the computer, just formed the zero standby safety holding circuit of computer as shown in Figure 2.On principle; the two ends of power switch K1 also need not and connect the knob normally opened contact; why on power switch K1 and connect the knob normally opened contact; be in order to increase the versatility of described computer zero standby safety holding circuit; and, on power switch K1 and connect the course of work that the knob normally opened contact does not influence described computer zero standby safety holding circuit.
On the basis of Fig. 1, when commutation circuit adopts AC relay KA3 and KA4 and control circuit thereof, when the emergency starting circuit adopts AC relay KA5 and control circuit thereof, just formed the zero standby safety holding circuit of computer as shown in Figure 3; The control circuit of AC relay KA3, KA4 and KA5 is respectively by control knob SB3, SB4 and SB2 and be attempted by control knob SB3, SB4 respectively and the one group of normally opened contact SB2 two ends, the respective quadrature current relay constitutes, that is: one of AC relay KA3 group of normally opened contact is attempted by the two ends of controlling knob SB3, one group of normally opened contact of AC relay KA4 is attempted by the two ends of control knob SB4, and one group of normally opened contact of AC relay KA5 is attempted by the two ends of control knob SB2.
On the basis of Fig. 3, when adopting power switch K1 on the computer, just formed the zero standby safety holding circuit of computer as shown in Figure 4.
When practical application, exchange the controlled contact making device of controlled contact making device and direct current and can directly adopt the controlled electronic devices and components of various break-makes such as above-mentioned AC relay, DC relay to substitute, also can adopt microprocessor, single-chip microcomputer and the controlled electronic devices and components of various break-makes that are attached thereto substitute.
When adopting above-mentioned computer zero standby safety holding circuit to make electric socket, many ac output end is corresponded respectively to corresponding a pair of jack on the plate, and, every pair of corresponding by-pass switch of ac output end is installed in by the corresponding jack.
Be example with computer shown in Figure 1 zero standby safety holding circuit; its course of work is: when pressing the start button SB1 on the computer; the knob normally opened contact is connected; the two ends of start button SB1 are communicated with; AC relay KA1 gets; meanwhile; exchange the input port and exchange delivery outlet also owing to the connection of two groups of power supply normally opened contacts among the AC relay KA1 is connected; computer powers on; PW on the computer main board is short circuit owing to the connection that starts normally opened contact; computer begins to start; by the time after the Switching Power Supply operate as normal of computer, one group+12 volt DC voltage is powered to DC relay KA2, starts working; the break-make normally closed contact disconnects; make to quit work the KA1 dead electricity, exchange the input port and exchange the connection of delivery outlet owing to two groups of power supply normally opened contacts among the D.C. contactor KA2 and maintain on-state; meanwhile, network interface is also owing to the connection of the communication normally opened contact corresponding with network interface is connected.Computer is finished using, clicking the system closedown option shuts down, after the computer shutdown system, the computer VD disappears, DC relay KA2 outage, the normally opened contact of DC relay KA2 disconnects, and is connected disconnection between the AC power on the employed plate of computer and the electrical network, and network interface also disconnects.Like this, when computer was in holding state, standby energy consumption was zero, owing to be connected disconnection between the AC power on the used plate of computer and the electrical network, prevented that effectively computer is struck by lightning, network interface also is in off-state, has also prevented hacker's all attacks to computer effectively.

Claims (9)

1. a computer zero standby safety holding circuit, comprise: the power switch on the computer or start button, it is characterized in that: described computer zero standby safety holding circuit also comprises AC input cell, exchange output unit, the communication input port, the communication delivery outlet, exchange the controlled contact making device of controlled contact making device and direct current, AC input cell includes: a pair of ac input end with respectively with this input live wire that ac input end is linked to each other and input zero line, the interchange output unit includes: at least one pair of ac output end with respectively with this output live wire that ac output end is linked to each other and output zero line, the controlled contact making device of described interchange includes: AC driving circuit, two groups of power supply normally opened contacts, one group of knob normally opened contact, one group of startup normally opened contact that is used for starting computer, the controlled contact making device of described direct current includes: dc drive circuit, two groups of power supply normally opened contacts, one group with power switch or the start break-make normally closed contact that matches of button and the communication normally opened contact of some groups of connect one to one communication input port and communication delivery outlets; Exchange in two groups of power supply normally opened contacts and the controlled contact making device of direct current in the controlled contact making device two groups of power supply normally opened contacts one by one corresponding and connect after respectively serial connection input live wire with output live wire and input zero line and export between the zero line; One end of described AC driving circuit links to each other with the input live wire, and the other end links to each other with the input zero line with power switch or start button by serial connection break-make normally closed contact together, and described one group of knob normally opened contact is attempted by power switch or start button two ends; The two ends of described dc drive circuit link to each other with the positive and negative output terminal that the direct current of computer is exported respectively; Described one group of startup normally opened contact is connected on the computer main board a pair of for the PW startup control end that starts computer.
2. computer as claimed in claim 1 zero standby safety holding circuit, it is characterized in that: the controlled contact making device of described interchange is AC relay, the controlled contact making device of described direct current is DC relay.
3. computer as claimed in claim 1 zero standby safety holding circuit is characterized in that: be provided with anti-lightning strike protector between described input live wire and the input zero line.
4. computer as claimed in claim 3 zero standby safety holding circuit is characterized in that: described anti-lightning strike protector for and be carried in input live wire and the anti-lightning strike voltage dependent resistor (VDR) of importing between the zero line.
5. computer as claimed in claim 1 zero standby safety holding circuit is characterized in that: go here and there on the described incoming line and be provided with overload protective device.
6. computer as claimed in claim 5 zero standby safety holding circuit is characterized in that: the overload protective device of described overload protective device for matching with setting electric current and voltage.
7. as the zero standby safety holding circuit of each described computer in the claim 1 to 6, it is characterized in that: described computer zero standby safety holding circuit also is provided with the commutation circuit that is made of dpdt double-pole double-throw (DPDT) type switch or AC relay and control circuit thereof, and the control circuit of this AC relay is by the control knob and be attempted by one group of normally opened contact these control knob two ends, this AC relay and constitute; A moving contact of described commutation circuit and corresponding normally closed stationary contact are serially connected between output live wire and the corresponding ac output end, and often the open stationary contact corresponding with this moving contact links to each other with the input live wire; Another moving contact of commutation circuit and corresponding normally closed stationary contact be serially connected in the output zero line and and corresponding ac output end between, corresponding with this moving contact stationary contact of often opening links to each other with the input zero line.
8. as the zero standby safety holding circuit of each described computer in the claim 1 to 6, it is characterized in that: described computer zero standby safety holding circuit also is provided with the emergency starting circuit that is made of dpdt double-pole double-throw (DPDT) type switch or AC relay and control circuit thereof, and the control circuit of this AC relay is by the control knob and be attempted by one group of normally opened contact these control knob two ends, this AC relay and constitute; The two ends of described power switch or start knob are serially connected between break-make normally closed contact and the button normally opened contact by a pair of normally closed contact that is made of moving contact and closed type stationary contact of emergency starting circuit respectively, and, moving contact links to each other with power switch or start knob, and a pair of open type stationary contact of emergency starting circuit is also received on a pair of PW startup control end.
9. as the zero standby safety holding circuit of each described computer in the claim 1 to 6, it is characterized in that: described communication input port, communication delivery outlet are network interface.
CN201310114453.2A 2013-04-03 2013-04-03 A kind of computer zero standby safety holding circuit Expired - Fee Related CN103207977B (en)

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CN201310114453.2A CN103207977B (en) 2013-04-03 2013-04-03 A kind of computer zero standby safety holding circuit

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CN103207977B CN103207977B (en) 2016-05-18

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105739662A (en) * 2014-12-11 2016-07-06 鸿富锦精密工业(深圳)有限公司 Power control circuit
WO2017071612A1 (en) * 2015-10-30 2017-05-04 青岛海尔滚筒洗衣机有限公司 Washing machine control method, control system and washing machine on internet of things

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CN102221867A (en) * 2011-07-01 2011-10-19 南京莱斯信息技术股份有限公司 Circuit for realizing computer soft off and control method thereof
CN202133884U (en) * 2011-06-15 2012-02-01 深圳龙多电子科技有限公司 Standby zero power consumption circuit
CN202631998U (en) * 2012-04-20 2012-12-26 无锡小天鹅股份有限公司 On-off control circuit based on non-isolated power supply
CN203133869U (en) * 2013-04-03 2013-08-14 苏家云 Computer zero standby safety protection circuit

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CN202133884U (en) * 2011-06-15 2012-02-01 深圳龙多电子科技有限公司 Standby zero power consumption circuit
CN102221867A (en) * 2011-07-01 2011-10-19 南京莱斯信息技术股份有限公司 Circuit for realizing computer soft off and control method thereof
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* Cited by examiner, † Cited by third party
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CN105739662A (en) * 2014-12-11 2016-07-06 鸿富锦精密工业(深圳)有限公司 Power control circuit
WO2017071612A1 (en) * 2015-10-30 2017-05-04 青岛海尔滚筒洗衣机有限公司 Washing machine control method, control system and washing machine on internet of things
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CN106637805B (en) * 2015-10-30 2020-05-22 青岛海尔滚筒洗衣机有限公司 Internet of things washing machine control method and system and washing machine
US10961651B2 (en) 2015-10-30 2021-03-30 Qingdao Haier Drum Washing Machine Co., Ltd. Internet of things washing machine control method, control system, and washing machine

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