CN202042876U - Mains voltage two-way off-limit alarm protection device - Google Patents
Mains voltage two-way off-limit alarm protection device Download PDFInfo
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- CN202042876U CN202042876U CN2011201607348U CN201120160734U CN202042876U CN 202042876 U CN202042876 U CN 202042876U CN 2011201607348 U CN2011201607348 U CN 2011201607348U CN 201120160734 U CN201120160734 U CN 201120160734U CN 202042876 U CN202042876 U CN 202042876U
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- integrated circuit
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- potentiometer
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Abstract
The utility model relates to a mains voltage two-way off-limit alarm protection device. The adopted technical scheme is as follows: the mains voltage two-way off-limit alarm protection device comprises a power input terminal, a power output terminal and a control circuit, wherein the control circuit is provided with a relay and contacts of the relay are connected in series on two power lines between the power input terminal and the power output terminal. Compared with the prior art, the mains voltage two-way off-limit alarm protection device has the advantages of small volume, complete functions, simple manufacturing and strong practicality, and can give a sound-light alarm when mains voltage is higher or lower than a specified value and automatically cut off a power supply of an electrical appliance, so as to protect the electrical appliance 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 phenomenon of line voltage shakiness.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 this utility model is exactly the defective that exists at 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 on two power lines between power input terminal and the power output terminal.Described control circuit comprises resistance, electric capacity, potentiometer, light-emitting diode, diode, integrated circuit, triode and relay; One end of power input terminal is by the upper end of first resistance and first potentiometer, the upper end of second potentiometer and the positive pole of electric capacity are connected, 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 and second
1
The positive pole anodal and second diode of optical diode is connected, 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, 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 the back and is connected with the other end of power input terminal and is connected the power supply ground wire; Described relay two ends are connected in parallel to the 3rd diode Homeway.com Chinese percussion instrument.
Wherein, described integrated circuit is a ungated integrated circuit, and its model is CD4069 or CO33.
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 on two power lines between power input terminal 1 and the power output terminal 2.Described 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 by the upper end of first resistance R 1 and the first potentiometer W1, the upper end of the second potentiometer W2 and the positive pole of capacitor C are connected, the middle-end of the first potentiometer W1 is connected with 1 pin of integrated circuit (IC), the middle-end of the second potentiometer W2 is connected with 5 pin of integrated circuit (IC), one end of 14 pin of integrated circuit (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 integrated circuit (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 integrated circuit (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, the collector electrode of triode T is connected with the other end of relay J, the emitter of triode T, the other end of the 3rd resistance R 3,7 pin of integrated circuit (IC), the lower end of the first potentiometer W1, the lower end of the second potentiometer W2 and the negative pole of capacitor C connect the back and are connected with the other end of power input terminal 1 and are connected the power supply ground wire; Described relay J two ends are connected in parallel to the 3rd diode D3 Homeway.com Chinese percussion instrument X.
Wherein, described integrated circuit (IC) is a ungated integrated circuit, and its model is CD4069 or CO33.
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 on two power lines between power input terminal and the power output terminal, and it is characterized in that: described control circuit comprises resistance, electric capacity, potentiometer, light-emitting diode, diode, integrated circuit, triode and relay; One end of power input terminal is by the upper end of first resistance and first potentiometer, the upper end of second potentiometer and the positive pole of electric capacity are connected, 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, the collector electrode of triode is connected with the other end of relay, the emitter of triode, the other end of the 3rd resistance, 7 pin of integrated circuit, the lower end of first potentiometer, the lower end of second potentiometer and the negative pole of electric capacity connect the back and are connected with the other end of power input terminal and are connected the power supply ground wire; Described 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: described integrated circuit is a ungated integrated circuit, and its model is CD4069 or CO33.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201607348U CN202042876U (en) | 2011-05-19 | 2011-05-19 | Mains voltage two-way off-limit alarm protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201607348U CN202042876U (en) | 2011-05-19 | 2011-05-19 | Mains voltage two-way off-limit alarm protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202042876U true CN202042876U (en) | 2011-11-16 |
Family
ID=44970302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201607348U Expired - Fee Related CN202042876U (en) | 2011-05-19 | 2011-05-19 | Mains voltage two-way off-limit alarm protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202042876U (en) |
-
2011
- 2011-05-19 CN CN2011201607348U patent/CN202042876U/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: 20111116 Termination date: 20120519 |