CN202513546U - Commercial power voltage bidirectional off-limit alarm protecting device - Google Patents
Commercial power voltage bidirectional off-limit alarm protecting device Download PDFInfo
- Publication number
- CN202513546U CN202513546U CN2012201032754U CN201220103275U CN202513546U CN 202513546 U CN202513546 U CN 202513546U CN 2012201032754 U CN2012201032754 U CN 2012201032754U CN 201220103275 U CN201220103275 U CN 201220103275U CN 202513546 U CN202513546 U CN 202513546U
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- integrated circuit
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Abstract
The utility model relates to a commercial power voltage bidirectional off-limit alarm protecting device. The technical scheme of the utility model is that the commercial power voltage bidirectional off-limit alarm protecting device comprises a power supply input terminal, a power supply output terminal and a control circuit, the control circuit is equipped with a relay, and the contacts of the relay are in series connections between the power supply input terminus and the power supply output terminal. Compared with the prior art, the commercial power voltage bidirectional off-limit alarm protecting device has the advantages of small volume, complete functions, simple manufacture and strong practicality, can carry out an acousto-optic alarm when the commercial power voltage is greater or lower than a specified value, and enables the electric appliance power supplies to be cut off automatically, thereby preventing the power equipment from being damaged.
Description
Technical field
The utility model relates to safety utilization of electric power protective device technical field, is specifically related to the two-way off-limit alarm protective device of a kind of line voltage.
Background technology
At present, in industrial and mining enterprises and some residential block, still have the unstable phenomenon of line voltage.Voltage stabilizing product on the market only can be at burning voltage among a small circle, or adds an overtension automatic circuit break function; As when exceeding its voltage stabilized range or brownout; Then powerless, can not send and report to the police or the cut-out appliances power source, often cause electrical equipment to damage or cause the generation of accident.
The utility model content
The purpose of the utility model is exactly the defective that exists to prior art, provides a kind of line voltage two-way off-limit alarm protective device.This device can carry out sound and light alarm when line voltage is higher or lower than setting, cut off appliances power source simultaneously automatically, and the protection electrical appliance is not damaged.
Its technical scheme is: comprise power input terminal, power output terminal and control circuit, control circuit is provided with relay, and the contact of this relay is connected in series between power input terminal and the power output terminal.Said control circuit comprises resistance, electric capacity, potentiometer, light-emitting diode, diode, integrated circuit, triode and relay; One end of power input terminal is connected with the upper end of first potentiometer, the upper end of second potentiometer and the positive pole of electric capacity through first resistance; The middle-end of first potentiometer is connected with 1 pin of integrated circuit; The middle-end of second potentiometer is connected with 5 pin of integrated circuit; 14 pin of integrated circuit are connected with an end of an end of second resistance and relay and are connected the power supply positive pole; 2 pin of integrated circuit, 3 pin connect the back and are connected with the positive pole anodal and first diode of first light-emitting diode; The negative pole of first light-emitting diode is connected with the other end of second resistance; 6 pin of integrated circuit are connected with the positive pole anodal and second diode of second light-emitting diode; The negative pole of second light-emitting diode is connected with an end of the 3rd resistance; The negative pole of the negative pole of first diode and second diode connects the back and is connected with the base stage of triode, and the collector electrode of triode is connected with the other end of relay, and the negative pole of the lower end of the other end of the emitter of triode, the 3rd resistance, 7 pin of integrated circuit, first potentiometer, the lower end of second potentiometer and electric capacity connects and afterwards is connected with second end of source input terminal and is connected the power supply ground wire; Said relay two ends are connected in parallel to the 3rd diode Homeway.com Chinese percussion instrument.
Wherein, said integrated circuit is a ungated integrated circuit.
The utility model has the advantage that volume is little, function complete, making is simple, practical compared with prior art.It can carry out sound and light alarm when line voltage is higher or lower than setting, cut off appliances power source simultaneously automatically, and the protection electrical appliance is not damaged.
Description of drawings
Fig. 1 is the circuit theory diagrams of a kind of embodiment of the utility model.
Embodiment
With reference to Fig. 1; The two-way off-limit alarm protective device of a kind of line voltage; Comprise power input terminal 1, power output terminal 2 and control circuit 3, control circuit 3 is provided with relay J, and the contact J-1 of this relay J is connected in series between power input terminal 1 and the power output terminal 2; Be that power input terminal 1 connects power line, power output terminal 2 connects the power supply line of online coating machine.Control circuit 3 comprises resistance, electric capacity, potentiometer, light-emitting diode, diode, integrated circuit, triode and relay; One end of power input terminal 1 is connected with the upper end of the first potentiometer W1, the upper end of the second potentiometer W2 and the positive pole of capacitor C through first resistance R 1; The middle-end of the first potentiometer W1 is connected with 1 pin of IC; The middle-end of the second potentiometer W2 is connected with 5 pin of IC; One end of 14 pin of IC and second resistance R 2 and an end of relay J are connected and are connected the anodal Vcc of power supply; 2 pin of IC, 3 pin connect the back and are connected with the positive pole anodal and the first diode D1 of the first light-emitting diode L1; The negative pole of the first light-emitting diode L1 is connected with the other end of second resistance R 2; 6 pin of IC are connected with the positive pole anodal and the second diode D2 of the second light-emitting diode L2; The negative pole of the second light-emitting diode L2 is connected with an end of the 3rd resistance R 3; The negative pole of the negative pole of the first diode D1 and the second diode D2 connects the back and is connected with the base stage of triode T, and the collector electrode of triode T is connected with the other end of relay J, and the negative pole of the lower end of the other end of the emitter of triode T, the 3rd resistance R 3,7 pin of IC, the first potentiometer W1, the lower end of the second potentiometer W2 and capacitor C connects and afterwards is connected with second end of source input terminal 1 and is connected the power supply ground wire; The relay J two ends are connected in parallel to the 3rd diode D3 Homeway.com Chinese percussion instrument X.IC is a ungated integrated circuit, and its model can adopt CD4069.
Claims (2)
1. two-way off-limit alarm protective device of line voltage; Comprise power input terminal, power output terminal and control circuit; Control circuit is provided with relay; The contact of this relay is connected in series between power input terminal and the power output terminal, it is characterized in that: said control circuit comprises resistance, electric capacity, potentiometer, light-emitting diode, diode, integrated circuit, triode and relay; One end of power input terminal is connected with the upper end of first potentiometer, the upper end of second potentiometer and the positive pole of electric capacity through first resistance; The middle-end of first potentiometer is connected with 1 pin of integrated circuit; The middle-end of second potentiometer is connected with 5 pin of integrated circuit; 14 pin of integrated circuit are connected with an end of an end of second resistance and relay and are connected the power supply positive pole; 2 pin of integrated circuit, 3 pin connect the back and are connected with the positive pole anodal and first diode of first light-emitting diode; The negative pole of first light-emitting diode is connected with the other end of second resistance; 6 pin of integrated circuit are connected with the positive pole anodal and second diode of second light-emitting diode; The negative pole of second light-emitting diode is connected with an end of the 3rd resistance; The negative pole of the negative pole of first diode and second diode connects the back and is connected with the base stage of triode, and the collector electrode of triode is connected with the other end of relay, and the negative pole of the lower end of the other end of the emitter of triode, the 3rd resistance, 7 pin of integrated circuit, first potentiometer, the lower end of second potentiometer and electric capacity connects and afterwards is connected with second end of source input terminal and is connected the power supply ground wire; Said relay two ends are connected in parallel to the 3rd diode Homeway.com Chinese percussion instrument.
2. the two-way off-limit alarm protective device of line voltage according to claim 1 is characterized in that: said integrated circuit is a ungated integrated circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201032754U CN202513546U (en) | 2012-07-27 | 2012-07-27 | Commercial power voltage bidirectional off-limit alarm protecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201032754U CN202513546U (en) | 2012-07-27 | 2012-07-27 | Commercial power voltage bidirectional off-limit alarm protecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202513546U true CN202513546U (en) | 2012-10-31 |
Family
ID=47066003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201032754U Expired - Fee Related CN202513546U (en) | 2012-07-27 | 2012-07-27 | Commercial power voltage bidirectional off-limit alarm protecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202513546U (en) |
-
2012
- 2012-07-27 CN CN2012201032754U patent/CN202513546U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121031 Termination date: 20130727 |