CN105071342A - Electric leakage protection circuit for data server - Google Patents
Electric leakage protection circuit for data server Download PDFInfo
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- CN105071342A CN105071342A CN201510488638.9A CN201510488638A CN105071342A CN 105071342 A CN105071342 A CN 105071342A CN 201510488638 A CN201510488638 A CN 201510488638A CN 105071342 A CN105071342 A CN 105071342A
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- data server
- integrated circuit
- electric capacity
- base integrated
- leakage protection
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Abstract
An electric leakage protection circuit for a data server comprises a rectifying circuit Q1, a time-base integrated circuit chip IC1, a control switch, a resistor R1, an adjustable resistor R2, a resistor R3, a capacitor C1, a capacitor C2, a capacitor C3, a diode D1 and a silicon controlled rectifier D2. A positive AC input end of the Q1 is connected in series with the R1, and then, is connected with a signal acquisition end a1, a negative AC input end thereof is connected with a signal acquisition end a2, and a positive DC output end of the Q1 is connected with the positive electrode of the D1; the negative electrode of the D1 is connected with a control end of the D2; the positive electrode of the D2 is connected with a power supply end of the IC1, and the negative electrode thereof is connected with a fixed end of the R2; a movable end of the R2 is connected with a resetting end of the IC1; and the positive electrode of the C3 is connected with an output end of the IC1, and the negative electrode thereof is connected with the control switch. The electric leakage protection circuit can provide electric leakage protection for the data server, so that when the data server leaks electrically, the data server is enabled to be in a power-off state, and generation of safety accidents can be prevented.
Description
Technical field
The present invention relates to electric leakage protection technology field, particularly, relate to a kind of leakage protection circuit for data server.
Background technology
In recent years the develop rapidly of computer science and technology, people notice that all the more in office, transactional business operation and development of computer are separated, and the maturation along with network communications technology, computer technology and database technology there has been proposed office automation new ideas.The business of usual office, mainly carry out the process of heap file, draft the file, notify, miscellaneous service text, accept external documents file, inquiry file, the basic services such as hard-copy file also comprise leading body and make a policy, and issue instruction, except the contact on document, the more work of deep layer, be actually the collection of information, storage, retrieval, process, analysis, thus make a policy, and give feedback using decision-making as information.
Along with the development of office automation, the more project management of current enterprise is also adopted and is electronically managed, for the data server of project management as common office equipment, also need to prevent it from drain conditions occurring, bring threat to user of service, bring the threats such as fire to office space.
Summary of the invention
Object of the present invention is just the shortcoming and defect overcoming above-mentioned prior art, provides a kind of leakage protection circuit for data server, makes it keep off-position, prevent the generation of security incident when electric leakage occurs data server.
The present invention's adopted technical scheme that solves the problem is:
Leakage protection circuit for data server comprises rectification circuit Q1, time-base integrated circuit chip IC 1, control switch, resistance R1, adjustable resistance R2, resistance R3, electric capacity C1, electric capacity C2, electric capacity C3, diode D1 and controllable silicon D2, and described control switch is connected between AC power and the power interface of data server, be connected with signals collecting end a1 after the forward ac input end series resistor R1 of described rectification circuit Q1, the negative sense ac input end of described rectification circuit Q1 is connected with signals collecting end a2, the forward dc output of described rectification circuit Q1 is connected with the positive pole of diode D1, be connected with the control end of controllable silicon D2 after the positive pole of the negative pole shunt-wound capacitance C1 of described diode D1, the positive pole of described controllable silicon D2 is also connected with power supply VCC after connecing the power end of described time-base integrated circuit chip IC 1, the negative pole of described controllable silicon D2 is connected with a stiff end of adjustable resistance R2, the movable end of described adjustable resistance R2 is connected with the replacement end of described time-base integrated circuit chip IC 1, be connected with the replacement keyed end of described time-base integrated circuit chip IC 1 behind the positive pole of trigger end shunt-wound capacitance C2 of described time-base integrated circuit chip IC 1 and one end of resistance R3, be connected with the output of described time-base integrated circuit chip IC 1 after the positive pole of the other end shunt-wound capacitance C3 of described resistance R3, the negative pole of described electric capacity C3 is connected with control switch, the earth terminal of described time-base integrated circuit chip IC 1, the negative pole of described electric capacity C2, another stiff end of described adjustable resistance R2, the negative pole of described electric capacity C1 and the equal ground connection of negative sense DC output end of described rectification circuit Q1.
As a further improvement on the present invention, the above-mentioned leakage protection circuit for data server also comprises loud speaker BL1, and the positive pole of loud speaker BL1 connects the negative pole of electric capacity C3, the minus earth of loud speaker BL1.
Preferably, described time-base integrated circuit chip IC 1 is NE555 chip, and 1 pin of described NE555 chip is earth terminal, 2 pin are trigger end, 3 pin are output, 4 pin are held for resetting, 6 pin are replacement keyed end, 8 pin are power end.
Further, described control switch comprises relay and PNP triode, and the power interface of the moving contact connection data server of relay, fixed contact connect the live wire of AC power, the emitter of control end connection PNP triode; The base stage of PNP triode connects the negative pole of electric capacity C3, and emitter connects power supply VCC, the control end of collector connection relay.
Preferably, described rectification circuit Q1 is a full-wave rectification bridge.
To sum up, the invention has the beneficial effects as follows: the present invention can the electric leakage information of measurement data server fast and accurately, and the connection of deenergization interface and AC power when electric leakage being detected, prevent the generation of security incident; The present invention can also give the alarm when electric leakage being detected, and whole circuit structure is succinct, practical.
Accompanying drawing explanation
Fig. 1 is the structural representation of a specific embodiment of the present invention.
Embodiment
Below in conjunction with embodiment and accompanying drawing, to the detailed description further of the present invention's do, but embodiments of the present invention are not limited thereto.
[embodiment 1]
As shown in Figure 1, the described leakage protection circuit for data server comprises rectification circuit Q1, time-base integrated circuit chip IC 1, loud speaker BL1, control switch, resistance R1, adjustable resistance R2, resistance R3, electric capacity C1, electric capacity C2, electric capacity C3, diode D1 and controllable silicon D2, and described control switch is connected between AC power and the power interface of data server, be connected with signals collecting end a1 after the forward ac input end series resistor R1 of described rectification circuit Q1, the negative sense ac input end of described rectification circuit Q1 is connected with signals collecting end a2, the forward dc output of described rectification circuit Q1 is connected with the positive pole of diode D1, be connected with the control end of controllable silicon D2 after the positive pole of the negative pole shunt-wound capacitance C1 of described diode D1, the positive pole of described controllable silicon D2 is also connected with power supply VCC after connecing the power end of described time-base integrated circuit chip IC 1, the negative pole of described controllable silicon D2 is connected with a stiff end of adjustable resistance R2, the movable end of described adjustable resistance R2 is connected with the replacement end of described time-base integrated circuit chip IC 1, be connected with the replacement keyed end of described time-base integrated circuit chip IC 1 behind the positive pole of trigger end shunt-wound capacitance C2 of described time-base integrated circuit chip IC 1 and one end of resistance R3, be connected with the output of described time-base integrated circuit chip IC 1 after the positive pole of the other end shunt-wound capacitance C3 of described resistance R3, the negative pole of described electric capacity C3 is connected with control switch with the positive pole of described loud speaker BL1, the negative pole of described loud speaker BL1, the earth terminal of described time-base integrated circuit chip IC 1, the negative pole of described electric capacity C2, another stiff end of described adjustable resistance R2, the negative pole of described electric capacity C1 and the equal ground connection of negative sense DC output end of described rectification circuit Q1.
In the present embodiment, time-base integrated circuit chip IC 1 is NE555 chip, and 1 pin of described NE555 chip is earth terminal, 2 pin are trigger end, 3 pin are output, 4 pin are held for resetting, 6 pin are replacement keyed end, 8 pin are power end.Described power supply VCC is+6V power supply.Described control switch comprises relay and PNP triode, and the power interface of the moving contact connection data server of relay, fixed contact connect the live wire of AC power, the emitter of control end connection PNP triode; The base stage of PNP triode connects the negative pole of electric capacity C3, and emitter connects power supply VCC, the control end of collector connection relay.Described rectification circuit Q1 is a full-wave rectification bridge.AC power is 220V civil power.
The leakage protection circuit for data server in the present invention can directly be connected with the shell of data server or ground wire, namely the shell of signals collecting end a1, a2 and data server or ground wire are connected, when signals collecting end a1, a2 no signal inputs, controllable silicon D2 ends, its output voltage is less than 0.7V, the replacement end of time-base integrated circuit chip IC 1 is by enforced reset, whole circuit is in off position, and loud speaker BL1 not sounding sound, control switch makes power interface and AC power keep being connected; When signals collecting end a1 and a2 has current signal to input, controllable silicon D2 conducting, the replacement end of time-base integrated circuit chip IC 1 becomes high level, whole circuit starting of oscillation, connection between control switch deenergization interface and AC power, loud speaker BL1 sends chimes of doom, people are reminded to take measures, with the generation of accident prevention, the present invention can measure electric leakage information fast and accurately, and the connection of deenergization interface and AC power when leaking electricity, can also give the alarm, whole circuit structure is succinct, practical.
Below be only the preferred embodiment of the present invention, protection scope of the present invention be not only confined to above-described embodiment, all technical schemes belonged under thinking of the present invention all belong to protection scope of the present invention.It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention, should be considered as protection scope of the present invention.
Claims (5)
1. for the leakage protection circuit of data server, it is characterized in that, comprise rectification circuit Q1, time-base integrated circuit chip IC 1, control switch, resistance R1, adjustable resistance R2, resistance R3, electric capacity C1, electric capacity C2, electric capacity C3, diode D1 and controllable silicon D2, described control switch is connected between AC power and the power interface of data server, be connected with signals collecting end a1 after the forward ac input end series resistor R1 of described rectification circuit Q1, the negative sense ac input end of described rectification circuit Q1 is connected with signals collecting end a2, the forward dc output of described rectification circuit Q1 is connected with the positive pole of diode D1, be connected with the control end of controllable silicon D2 after the positive pole of the negative pole shunt-wound capacitance C1 of described diode D1, the positive pole of described controllable silicon D2 is also connected with power supply VCC after connecing the power end of described time-base integrated circuit chip IC 1, the negative pole of described controllable silicon D2 is connected with a stiff end of adjustable resistance R2, the movable end of described adjustable resistance R2 is connected with the replacement end of described time-base integrated circuit chip IC 1, be connected with the replacement keyed end of described time-base integrated circuit chip IC 1 behind the positive pole of trigger end shunt-wound capacitance C2 of described time-base integrated circuit chip IC 1 and one end of resistance R3, be connected with the output of described time-base integrated circuit chip IC 1 after the positive pole of the other end shunt-wound capacitance C3 of described resistance R3, the negative pole of described electric capacity C3 is connected with control switch, the earth terminal of described time-base integrated circuit chip IC 1, the negative pole of described electric capacity C2, another stiff end of described adjustable resistance R2, the negative pole of described electric capacity C1 and the equal ground connection of negative sense DC output end of described rectification circuit Q1.
2. the leakage protection circuit for data server according to claim 1, is characterized in that, also comprises loud speaker BL1, and the positive pole of loud speaker BL1 connects the negative pole of electric capacity C3, the minus earth of loud speaker BL1.
3. the leakage protection circuit for data server according to claim 1 and 2; it is characterized in that; described time-base integrated circuit chip IC 1 is NE555 chip, and 1 pin of described NE555 chip is earth terminal, 2 pin are trigger end, 3 pin are output, 4 pin are held for resetting, 6 pin are replacement keyed end, 8 pin are power end.
4. the leakage protection circuit for data server according to claim 1 and 2, it is characterized in that, described control switch comprises relay and PNP triode, and the power interface of the moving contact connection data server of relay, fixed contact connect the live wire of AC power, the emitter of control end connection PNP triode; The base stage of PNP triode connects the negative pole of electric capacity C3, and emitter connects power supply VCC, the control end of collector connection relay.
5. the leakage protection circuit for data server according to claim 4, is characterized in that, described rectification circuit Q1 is a full-wave rectification bridge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510488638.9A CN105071342A (en) | 2015-08-11 | 2015-08-11 | Electric leakage protection circuit for data server |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510488638.9A CN105071342A (en) | 2015-08-11 | 2015-08-11 | Electric leakage protection circuit for data server |
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| Publication Number | Publication Date |
|---|---|
| CN105071342A true CN105071342A (en) | 2015-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510488638.9A Pending CN105071342A (en) | 2015-08-11 | 2015-08-11 | Electric leakage protection circuit for data server |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2155529Y (en) * | 1993-01-13 | 1994-02-09 | 项本智 | Leakage cut-out for electric water heater |
| US20040004454A1 (en) * | 2002-07-02 | 2004-01-08 | Keiichi Shimizu | Opening-and-closing member control device |
| CN104515930A (en) * | 2014-11-27 | 2015-04-15 | 国家电网公司 | Leak current detection alarm circuit |
| CN204361009U (en) * | 2014-12-09 | 2015-05-27 | 重庆西胜电子科技有限公司 | Time delay cuts off contact witch automatically |
-
2015
- 2015-08-11 CN CN201510488638.9A patent/CN105071342A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2155529Y (en) * | 1993-01-13 | 1994-02-09 | 项本智 | Leakage cut-out for electric water heater |
| US20040004454A1 (en) * | 2002-07-02 | 2004-01-08 | Keiichi Shimizu | Opening-and-closing member control device |
| CN104515930A (en) * | 2014-11-27 | 2015-04-15 | 国家电网公司 | Leak current detection alarm circuit |
| CN204361009U (en) * | 2014-12-09 | 2015-05-27 | 重庆西胜电子科技有限公司 | Time delay cuts off contact witch automatically |
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Application publication date: 20151118 |