CN203786663U - Power-failure-prevention device for computer - Google Patents
Power-failure-prevention device for computer Download PDFInfo
- Publication number
- CN203786663U CN203786663U CN201420188598.7U CN201420188598U CN203786663U CN 203786663 U CN203786663 U CN 203786663U CN 201420188598 U CN201420188598 U CN 201420188598U CN 203786663 U CN203786663 U CN 203786663U
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- diode
- power
- relay
- resistance
- computing machine
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Abstract
The utility model discloses a power-failure-prevention device for a computer and belongs to the field of computers. The purpose is to solve the problem that when mains supply fails, a generator system can not instantly take charge of power supply for the computer. According to the scheme, a mains supply 220 V alternating-current power supply is used as an alternating-current working power supply for the computer; when the mains supply is normal, alternating-current 220 V voltage is reduced through a voltage reduction capacitor C1, rectified through a diode D1, a diode D2, a diode D3 and a diode D4, stabilized through a diode D5 and filtered through a capacitor C2, and a +12 V working power supply is provided for a relay KM, so that the normally-closed contact of the relay KM is in an open state, and a storage battery does not supply power for the computer; when the mains supply fails, a coil of the relay KM is powered off, the open normally-closed contact of the relay KM recovers to be in a closed state due to the power failure, and the storage battery is instantly connected into a standby power supply loop of the computer in series to provide the working power supply for the computer.
Description
Technical field
The utility model relates to computing machine device for preventing power failure, belongs to computer realm.
Background technology
Computing machine is generally applied to every field; in some special dimensions; computing machine requires non-stop run, if middle because power-off shutdown can cause very large loss, therefore; such enterprise tends to house generator; need the time but generator starts, cannot moment in the time having a power failure contact with generator system, still have the possibility of computing machine flash; therefore, the transition anti-off device of a moment conversion power supply mode of design is necessary.
Summary of the invention
The utility model object is when solving mains failure, and generator system cannot be taken over the problem of computer power supply moment, and a kind of computing machine device for preventing power failure is provided.
Computing machine device for preventing power failure described in the utility model, it comprises civil power 220V AC power, accumulator, resistance R 1, resistance R 2, resistance R 3, decompression capacitor C1, electrochemical capacitor C2, mains supply relay indicating light LED, diode D1, diode D2, diode D3, diode D4, voltage stabilizing diode D5 and relay K M;
Civil power 220V AC power provides ac working power supply for computing machine;
One end of civil power 220V AC power is one end, one end of resistance R 3 and one end of decompression capacitor C1 of while contact resistance R1 also; The other end of resistance R 1 connects the other end of decompression capacitor C1, one end, the anode of diode D1 and the negative electrode of diode D3 of resistance R 2 simultaneously; The other end of resistance R 2 connects the negative electrode of mains supply relay indicating light LED; The other end of the anode while contact resistance R3 of mains supply relay indicating light LED, anode, the negative electrode of diode D4 and the other end of civil power 220V AC power of diode D2;
The negative electrode of diode D1 connects the negative electrode of diode D2, negative electrode, the positive pole of electrochemical capacitor C2 and one end of relay K M coil of voltage stabilizing diode D5 simultaneously;
The anode of diode D3 connects the anode of diode D4, anode, the negative pole of electrochemical capacitor C2 and the other end of relay K M coil of voltage stabilizing diode D5 simultaneously;
The normally closed contact of relay K M and accumulator are connected in the stand-by power supply loop of computing machine.
Advantage of the present utility model: computing machine device for preventing power failure described in the utility model detects the civil power to computer power supply in real time, in the time detecting that it has a power failure, computer power supply mode is transformed into storage battery power supply by moment, the electric weight of accumulator is limited, but its duration, enough starter-generator systems were contacted with, the computing machine of special dimension can not cause any loss because having a power failure.
Brief description of the drawings
Fig. 1 is the circuit diagram of computing machine device for preventing power failure described in the utility model.
Embodiment
Embodiment one: present embodiment is described below in conjunction with Fig. 1, computing machine device for preventing power failure described in present embodiment, it comprises civil power 220V AC power, accumulator, resistance R 1, resistance R 2, resistance R 3, decompression capacitor C1, electrochemical capacitor C2, mains supply relay indicating light LED, diode D1, diode D2, diode D3, diode D4, voltage stabilizing diode D5 and relay K M;
Civil power 220V AC power provides ac working power supply for computing machine;
One end of civil power 220V AC power is one end, one end of resistance R 3 and one end of decompression capacitor C1 of while contact resistance R1 also; The other end of resistance R 1 connects the other end of decompression capacitor C1, one end, the anode of diode D1 and the negative electrode of diode D3 of resistance R 2 simultaneously; The other end of resistance R 2 connects the negative electrode of mains supply relay indicating light LED; The other end of the anode while contact resistance R3 of mains supply relay indicating light LED, anode, the negative electrode of diode D4 and the other end of civil power 220V AC power of diode D2;
The negative electrode of diode D1 connects the negative electrode of diode D2, negative electrode, the positive pole of electrochemical capacitor C2 and one end of relay K M coil of voltage stabilizing diode D5 simultaneously;
The anode of diode D3 connects the anode of diode D4, anode, the negative pole of electrochemical capacitor C2 and the other end of relay K M coil of voltage stabilizing diode D5 simultaneously;
The normally closed contact of relay K M and accumulator are connected in the stand-by power supply loop of computing machine.
Diode D1, diode D2, diode D3 and diode D4 select IN4007 type silicon rectifier diode.Diode D1, diode D2, diode D3 and diode D4 form rectifier.
Voltage stabilizing diode D5 selects IN4742 type silicon voltage regulator diode.
Relay K M selects 4098 type 12V DC relay.
Principle of work: when civil power does not have a power failure, provide ac working power supply by civil power 220V AC power for computing machine; Device for preventing power failure Real-Time Monitoring civil power described in present embodiment, in the time that civil power is normal, alternating current 220V voltage is after decompression capacitor C1 step-down, D1 ~ D4 rectification, D5 voltage stabilizing and C2 filtering, for provide+12V of relay K M working power, make the normally closed contact of relay K M in off-state, now, accumulator is not computer power supply, LED lamp is bright, represents that civil power is normal.
In the time of mains failure, relay K M coil losing electricity, the normally closed contact of its disconnection recovers closure state because of power down, in the instantaneous stand-by power supply loop that is sealed in computing machine of accumulator, for computing machine provides working power, the lasting time enough people's starter-generators system of electric weight of accumulator, for work provides normal electric weight.Be moment the switching time of this device, can not cause computing machine flash, and computing machine can not be subject to any loss.
Claims (4)
1. computing machine device for preventing power failure, it is characterized in that, it comprises civil power 220V AC power, accumulator, resistance R 1, resistance R 2, resistance R 3, decompression capacitor C1, electrochemical capacitor C2, mains supply relay indicating light LED, diode D1, diode D2, diode D3, diode D4, voltage stabilizing diode D5 and relay K M;
Civil power 220V AC power provides ac working power supply for computing machine;
One end of civil power 220V AC power is one end, one end of resistance R 3 and one end of decompression capacitor C1 of while contact resistance R1 also; The other end of resistance R 1 connects the other end of decompression capacitor C1, one end, the anode of diode D1 and the negative electrode of diode D3 of resistance R 2 simultaneously; The other end of resistance R 2 connects the negative electrode of mains supply relay indicating light LED; The other end of the anode while contact resistance R3 of mains supply relay indicating light LED, anode, the negative electrode of diode D4 and the other end of civil power 220V AC power of diode D2;
The negative electrode of diode D1 connects the negative electrode of diode D2, negative electrode, the positive pole of electrochemical capacitor C2 and one end of relay K M coil of voltage stabilizing diode D5 simultaneously;
The anode of diode D3 connects the anode of diode D4, anode, the negative pole of electrochemical capacitor C2 and the other end of relay K M coil of voltage stabilizing diode D5 simultaneously;
The normally closed contact of relay K M and accumulator are connected in the stand-by power supply loop of computing machine.
2. computing machine device for preventing power failure according to claim 1, is characterized in that, diode D1, diode D2, diode D3 and diode D4 select IN4007 type silicon rectifier diode.
3. computing machine device for preventing power failure according to claim 1, is characterized in that, voltage stabilizing diode D5 selects IN4742 type silicon voltage regulator diode.
4. computing machine device for preventing power failure according to claim 1, is characterized in that, relay K M selects 4098 type 12V DC relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420188598.7U CN203786663U (en) | 2014-04-18 | 2014-04-18 | Power-failure-prevention device for computer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420188598.7U CN203786663U (en) | 2014-04-18 | 2014-04-18 | Power-failure-prevention device for computer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203786663U true CN203786663U (en) | 2014-08-20 |
Family
ID=51322827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420188598.7U Expired - Fee Related CN203786663U (en) | 2014-04-18 | 2014-04-18 | Power-failure-prevention device for computer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203786663U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109901691A (en) * | 2019-02-27 | 2019-06-18 | 苏州浪潮智能科技有限公司 | A kind of server power supply unit and server |
-
2014
- 2014-04-18 CN CN201420188598.7U patent/CN203786663U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109901691A (en) * | 2019-02-27 | 2019-06-18 | 苏州浪潮智能科技有限公司 | A kind of server power supply unit and server |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140820 |