CN2857270Y - Safety auto pretective socket when power failure - Google Patents
Safety auto pretective socket when power failure Download PDFInfo
- Publication number
- CN2857270Y CN2857270Y CN 200520051367 CN200520051367U CN2857270Y CN 2857270 Y CN2857270 Y CN 2857270Y CN 200520051367 CN200520051367 CN 200520051367 CN 200520051367 U CN200520051367 U CN 200520051367U CN 2857270 Y CN2857270 Y CN 2857270Y
- Authority
- CN
- China
- Prior art keywords
- power
- power failure
- line
- automatic protection
- protection circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
A power-cut automatic protection socket is consisted by electrically integrating a normal pinboard with a power-cut automatic protection circuit wherein the power-cut automatic protection circuit is constituted of a 220V/5V AC/DC convertor, a RS trigger formed by two NANDs, a D trigger, a relayer J and contact JK thereof, resistances R1, R2, R3, a triode V, a reset switch K0 and a light-emitting diode VD. The two input ends of AC/DC convertor are connected with lines L, N of the power supply respectively, the contact JK of the relayer J is connected to the line L of the pinboard. The N line of the power supply connects electrically to the VD cathode of the light-emitting diode VD and The N line of the pinboard, the GND line of the power supply connects electrically to the GND line of the pinboard. The advantages of the utility model are: the power-cut automatic protection socket cuts off the electrical connection between the power supply and the pinboard after outage, and is unable to process the circuit automatically, therefor the manual connection is executed to eliminate the potential safety hazard and prevent from fire due to the unmanned operation.
Description
Technical field:
The utility model relates to a kind of supply socket, and the safety that particularly has a power failure is the protection socket automatically.
Background technology:
Existing electric mortiser joint chair (plugboard) structure is the structure that its conductive contact directly is connected with power supply, people are using some heating electrical equipment, during as " immersion heater ", electric iron, electrocaloric effect, after power failure, usually forget and in time pull out power supply, thereby the potential safety hazard of bringing, easy initiation fire when the people walks the back incoming call.
Summary of the invention:
The purpose of this utility model is to overcome the above-mentioned defective of prior art electrical socket, provides and can realize the automatic electrical socket of protecting when sending a telegram here behind a kind of have a power failure again.
Technical solution of the present utility model is a kind of power failure safety protection socket automatically; it comprises a common electrical plugboard 3; it is electrically connected by common electrical plugboard 3 and power failure automatic protection circuit 2 forms, by the friendship of 220V/5V, straight conversion electric power AC/DC, 2 rest-set flip-flop, d type flip flop, relay J and contact J thereof that NAND gate NAND forms
K, resistance R
1, R
2, R
3, triode V, reset switch K
0And light-emitting diode VD, being connected into the power failure automatic protection circuit, two inputs of AC/DC electrically connect the contact J of relay J with L, the N line of power supply 1 respectively
KBe connected to the L line of plugboard 3; The N line of the N line of power supply 1 and light-emitting diode VD negative pole end and plugboard 3 electrically connects, and the GND line of power supply 1 and the GND line of plugboard 3 electrically connect.Referring to accompanying drawing 1,2.
Description of drawings:
Fig. 1 has a power failure to protect socket safely automatically and electrically connect block diagram;
Fig. 2 is the safety power failure automatic protection circuit connection figure of protection socket automatically that has a power failure;
Fig. 3 is the automatic power failure automatic protection circuit connection figure that protects socket to adopt chip to constitute of safety that has a power failure;
Embodiment:
The utility model further specifies as follows in conjunction with specific embodiments referring to accompanying drawing:
Among the utility model embodiment, it is the chip of 74LS00 and the chip formation that d type flip flop employing model is 74LS74 that the rest-set flip-flop of its automatic protection circuit adopts model.
A kind of power failure safety is the protection socket automatically, and it is electrically connected by a common electrical plugboard 3 and power failure automatic protection circuit 2 forms the ac-dc switching power AC/DC of 220V/5V, chip IC (model is 74LS00), IC
2(model is 74LS74), relay J and contact J thereof
K, triode V, light-emitting diode VD, reset switch K
0, electricity group R
1, R
2, R
3, capacitor C
1, C
2Be connected into the power failure automatic protection circuit.Two inputs of ac-dc switching power AC/DC electrically connect the contact J of relay J with L, the N line of power supply 1 respectively
KBe connected to the L line of plugboard 3; The N line of the N line of power supply 1 and Light-Emitting Diode VD negative pole end and plugboard 1 electrically connects, and the GND line of power supply 1 and the GND line of plugboard 3 electrically connect.Light-emitting diode VD is as the incoming telephone signal indicator light.
The utility model has a power failure safely automatically, and the operation principle of protection socket is: when power supply had a power failure, no current passed through in the relay J in the power failure automatic protection circuit, its contact J
KDisconnect, cut off plugboard 3 and connect with the circuit of power supply 1; When sending a telegram here once more, do not pressing reset switch K
0Before, the power failure automatic protection circuit makes the B utmost point no current of NPN triode V because the control of d type flip flop, and triode V ends, in the relay J still no current pass through contact J
KThe circuit of deenergization 1 and plugboard 3 still; Have only the people for after pressing reset switch, the AC/DC power supply is given high level pulse of d type flip flop by rest-set flip-flop, makes d type flip flop output and keeps a high level to give relay J, galvanization work in the relay J, contact J
KClosure, the circuit of energized 1 and plugboard 3.
The utility model has the advantages that: the safety that has a power failure protection socket automatically can be cut off the electricity supply after power failure and the electrically connecting of plugboard automatically; and when sending a telegram here once more, make power supply can not directly connect plugboard; and need manually to connect; so just, can eliminate safe hidden trouble uncared for breaking out of fire when avoiding having a power failure.
Claims (2)
1, socket is protected in a kind of power failure automatically; it comprises a common electrical plugboard; it is characterized in that it is electrically connected by common electrical plugboard and power failure automatic protection circuit forms; the rest-set flip-flop of forming by the friendship of 220V/5V, straight conversion electric power (AC/DC), 2 NAND gate (NAND), d type flip flop, relay (J) and contact (JK) thereof, resistance (R
1), (R
2), (R
3), triode (V), reset switch (K
0) and light-emitting diode (VD), being connected into the power failure automatic protection circuit, two inputs of AC and DC conversion electric power (AC/DC) electrically connect with power line (L), (N) respectively, the contact (J of relay (J)
K) be connected to the line (L) of plugboard; Power line (N) electrically connects with light-emitting diode (VD) negative pole end and grafting printed line (N), and power line (GND) electrically connects with grafting printed line (GND).
2, socket is protected in power failure according to claim 1 automatically, it is characterized in that the rest-set flip-flop of its power failure automatic protection circuit adopts chip (IC
1), model is 74LS00, d type flip flop adopts chip (IC
2), model is 74LS74, by AC and DC conversion electric power (AC/DC), the chip (IC of 220V/5V
1), (IC
2), relay (J) and contact (J thereof
K), triode (V), light-emitting diode (VD), reset switch (K
0), resistance (R
1), (R
2), (R
3), electric capacity (C
1), (C
2) be connected into the power failure automatic protection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520051367 CN2857270Y (en) | 2005-07-14 | 2005-07-14 | Safety auto pretective socket when power failure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520051367 CN2857270Y (en) | 2005-07-14 | 2005-07-14 | Safety auto pretective socket when power failure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2857270Y true CN2857270Y (en) | 2007-01-10 |
Family
ID=37600574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520051367 Expired - Fee Related CN2857270Y (en) | 2005-07-14 | 2005-07-14 | Safety auto pretective socket when power failure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2857270Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104932378A (en) * | 2015-06-13 | 2015-09-23 | 烟台东方威思顿电气股份有限公司(中国) | Control method and circuit for special transformer acquisition terminal to prevent remote control false tripping |
-
2005
- 2005-07-14 CN CN 200520051367 patent/CN2857270Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104932378A (en) * | 2015-06-13 | 2015-09-23 | 烟台东方威思顿电气股份有限公司(中国) | Control method and circuit for special transformer acquisition terminal to prevent remote control false tripping |
| CN104932378B (en) * | 2015-06-13 | 2017-05-17 | 烟台东方威思顿电气有限公司 | Control method and circuit for special transformer acquisition terminal to prevent remote control false tripping |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |