CN204066333U - Infrared thermal release electric secure voice warning device - Google Patents

Infrared thermal release electric secure voice warning device Download PDF

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Publication number
CN204066333U
CN204066333U CN201420443581.1U CN201420443581U CN204066333U CN 204066333 U CN204066333 U CN 204066333U CN 201420443581 U CN201420443581 U CN 201420443581U CN 204066333 U CN204066333 U CN 204066333U
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China
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circuit
resistance
pin
voltage
display
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CN201420443581.1U
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Chinese (zh)
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牛国强
王占峰
乔保晔
牛文军
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牛国强
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Priority to CN201420443581.1U priority Critical patent/CN204066333U/en
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Abstract

A kind of infrared thermal release electric secure voice warning device, is made up of voltage-stabilized power supply circuit, pyroelectric sensor circuit, voice alarm circuit and Display and Alarm Circuit, and voltage-stabilized power supply circuit is used for providing 12V and 5V DC voltage for system; Pyroelectric sensor circuit is used for detection personnel near charged hazardous location and when entering into warning security area, the infrared signal of human body radiation, then the infrared signal of the human body radiation detected is converted into effective action signal, is transferred to voice alarm circuit process; The effective action signal that voice alarm circuit is used for pyroelectric sensor circuit transmission to come changes into audio alert signal and display control signal, audio alert signal is sent through loudspeaker after being amplified by power amplification circuit, and display control signal is input to Display and Alarm Circuit; Display and Alarm Circuit is used for being controlled by display control signal, sends display alarm signal through display screen.Its advantage is, can avoid the generation of personal electric shock casualty accident, guarantee electrical safety.

Description

Infrared thermal release electric secure voice warning device
Technical field
The utility model relates to a kind of phonetic alarm device, particularly a kind of infrared thermal release electric secure voice warning device, be applicable to electrical equipment application places, voice, display safety instruction can be carried out in time to operating personnel, effectively prevent operating personnel's mistakenly entering into charged region, guarantee the personal safety of operating personnel.
Background technology
Along with the development of modern electric technology, electrical safety work is had higher requirement, electrical safety has not only become to be eliminated safety in production hidden danger, prevent casualty accident, ensures worker health and complete the important process content of each task smoothly, is also that electric specialty worker primarily faces and puts forth effort the problem that solves simultaneously.But, prevent the safety practice in operating personnel's mistakenly entering into charged region mainly: word or symbol safety instruction mark are set at present; This safety practice conspicuousness is not high, indicative good not, and particularly when operating personnel's vigilance is not good, likely ignore safety instruction mark, mistakenly entering into charged region, causes unnecessary casualty accident, therefore still there is no small potential safety hazard.
Utility model content
The purpose of this utility model is: design a kind of infrared thermal release electric secure voice warning device, this device is before operating personnel is by mistakenly entering into charged region, voice, display safety instruction can be carried out in time to operating personnel, effectively prevent operating personnel's mistakenly entering into charged region, guarantee the personal safety of operating personnel, reduce the generation of casualty accident.
The purpose of this utility model can be realized by following technical proposals:
This infrared thermal release electric secure voice warning device, is made up of voltage-stabilized power supply circuit, pyroelectric sensor circuit, voice alarm circuit and Display and Alarm Circuit, it is characterized in that: voltage-stabilized power supply circuit is used for providing 12V and 5V DC voltage for system; Pyroelectric sensor circuit is used for detection personnel near charged hazardous location and when entering into warning security area, the infrared signal of human body radiation, then the infrared signal of the human body radiation detected is converted into effective action signal, is transferred to voice alarm circuit process; Voice alarm circuit is used for after receiving the effective action signal that pyroelectric sensor circuit transmission comes, this effective action signal is changed into audio alert signal and display control signal, wherein, after audio alert signal is amplified by power amplification circuit, send through loudspeaker, display control signal is input to Display and Alarm Circuit; The display control signal that Display and Alarm Circuit is used for being transmitted by voice alarm circuit controls, and sends display alarm signal through display screen.
Have transformer T1, bridge rectifier D, three terminal regulator U4 and U5 in voltage-stabilized power supply circuit described in the utility model, have polar capacitor C1, C2 and C3, electric capacity C4 and diode D1, the model of its three terminal regulator U4 is 7812, and the model of three terminal regulator U5 is 7805; Pyroelectric infrared sensor module, electric capacity C11, resistance R13 and R14, triode Q1, relay J 1 and diode D3 is had in pyroelectric sensor circuit; Have optocoupler U1, speech chip U2, resistance R1 and R2, electric capacity C5 and C6, diode D2, power amplification circuit and loudspeaker SPK in voice alarm circuit, the model of its optocoupler U1 is 4N25, and the model of speech chip U2 is PM50; Resistance R5 and R12, triode Q2 and Q3, relay J 2, diode D4 and display screen is had in Display and Alarm Circuit;
Its annexation is: in voltage-stabilized power supply circuit, the former limit of transformer T1 connects alternating current 220V or 127V power supply, the secondary of transformer T1 connects two ac input ends of bridge rectifier D, the cathode output end of bridge rectifier D is connected with the positive pole of polar capacitor C1, and be connected to the 1st pin of three terminal regulator U4 simultaneously, the cathode output end of bridge rectifier D is connected with the negative pole of polar capacitor C1, and be connected to the 2nd pin of three terminal regulator U4 simultaneously, the 2nd pin ground connection of three terminal regulator U4, 3rd pin of three terminal regulator U4 exports 12V DC voltage, and connect the 1st pin of three terminal regulator U5 simultaneously and have the positive pole of polar capacitor C2, there is the minus earth of polar capacitor C2, the 2nd pin ground connection of three terminal regulator U5, and be connected with the negative pole of polar capacitor C3 and one end of electric capacity C4 simultaneously, 3rd pin of three terminal regulator U5 exports 5V DC voltage, and connect the positive pole of diode D1 simultaneously, there are the positive pole of polar capacitor C3 and the other end of electric capacity C4, the negative pole of diode D1 is connected to the 1st pin of three terminal regulator U5, in pyroelectric sensor circuit, pyroelectric infrared sensor module the 1st pin ground connection, and one end of contact resistance R13, the other end ground connection of resistance R13, pyroelectric infrared sensor module the 3rd pin connects 12V DC voltage, its the 2nd pin connects one end of electric capacity C11, one end of the other end contact resistance R14 of electric capacity C11, one end of other end contact resistance R13 of resistance R14 and the base stage of triode Q1, the other end ground connection of resistance R13, the grounded emitter of triode Q1, one end of collector connection relay J1 coil of triode Q1 and the positive pole of diode D3, the other end of relay J 1 coil is connected 12V DC voltage with the negative pole of diode D3, one end ground connection of relay J 1 normally opened contact, in voice alarm circuit, one end of the 1st pin contact resistance R1 of optocoupler U1, the other end of resistance R1 connects 12V DC voltage, the 4th pin ground connection of optocoupler U1, 5th pin of optocoupler U1 connects the K1 end of speech chip U2, the GND of speech chip U2 holds ground connection, and connect one end of electric capacity C6, the other end of electric capacity C6 connects the positive pole of diode D2, and hold with the K1 of speech chip U2 simultaneously and be connected, the negative pole of diode D2 connects 5V DC voltage, the ROSC of speech chip U2 holds one end of contact resistance R2, the other end of resistance R2 is connected to the vdd terminal of speech chip U2, and connect one end of electric capacity C5 simultaneously, the vdd terminal of speech chip U2 connects 5V DC voltage, the other end ground connection of electric capacity C5, the SP1 end of speech chip U2 is connected by the positive terminal of power amplification circuit with loudspeaker SPK, the negative pole end ground connection of loudspeaker SPK, in Display and Alarm Circuit, one end of resistance R5 connects 5V DC voltage, the other end of resistance R5 is connected to the collector of triode Q2, and the base stage of simultaneously connecting triode Q3, one end of the base stage contact resistance R12 of triode Q2, the grounded emitter of triode Q2 and Q3, one end of collector connection relay J2 coil of triode Q3 and the positive pole of diode D4, the other end of relay J 2 coil is connected 12V DC voltage with the negative pole of diode D4, the power input of display screen connects one end of relay J 2 normally opened contact, the other end of relay J 2 normally opened contact connects 12V DC voltage, the power output end ground connection of display screen, between pyroelectric sensor circuit and voice alarm circuit, the other end of relay J 1 normally opened contact is connected to the 2nd pin of optocoupler U1, between voice alarm circuit and Display and Alarm Circuit, 01 end of speech chip U2 is connected to the other end of resistance R12.
Have power amplifier chips U3, resistance R8 ~ R11 in power amplification circuit described in the utility model, have polar capacitor C7 and C8 and electric capacity C9 and C10, the model of its power amplifier chips U3 is TDA2003;
Its annexation is: the 1st pin of power amplifier chips U3 is connected with the negative pole of polar capacitor C8, polar capacitor C8 positive pole is had to be connected with one end of resistance R8, the other end ground connection of resistance R8, 2nd pin of power amplifier chips U3 connects one end of electric capacity C9, one end of other end contact resistance R9 and R11 of electric capacity C9, the other end of resistance R9 is connected to the 4th pin of power amplifier chips U3, and simultaneously contact resistance R10 one end and have the positive pole of polar capacitor C7, the other end of resistance R11 is connected to the 3rd pin of power amplifier chips U3, and ground connection, the other end of resistance R10 connects one end of electric capacity C10, the other end ground connection of electric capacity C10, 5th pin of power amplifier chips U3 connects 12V DC voltage, described power amplification circuit, one end of resistance R8 is held with the SP1 of speech chip U2 and is connected, and has the negative pole of polar capacitor C7 to be connected with the positive terminal of loudspeaker SPK.
In Display and Alarm Circuit of the present utility model, display screen is LED display.
In voltage-stabilized power supply circuit of the present utility model, the model of bridge rectifier D is IN4004 × 4, and the model of diode D1 is 4148; In pyroelectric sensor circuit, the model of triode Q1 is 8050, and the model of diode D3 is 4148; In voice alarm circuit, the model of diode D2 is 4148; In Display and Alarm Circuit, the model of triode Q2 and Q3 is 8050, and the model of diode D4 is 4148.
The utility model has the advantages that: 1) structure is simple, cost is low; 2) highly sensitive, range of control is large, good concealment, strong interference immunity, and installation of can flowing; 3) can automatic monitoring with or without personnel near charged hazardous location, before operating personnel is by mistakenly entering into charged region (after namely entering warning security area), voice, display safety instruction can be carried out in time to operating personnel, effectively prevent operating personnel's mistakenly entering into charged region, guarantee the personal safety of operating personnel, avoid the generation of personal electric shock casualty accident, guarantee electrical safety; 4) do not need with the emissive source such as infrared ray or electromagnetic wave during work, working condition is stablized.
Accompanying drawing explanation
Fig. 1 is circuit block diagram of the present utility model;
Fig. 2 is voltage-stabilized power supply circuit schematic diagram;
Fig. 3 is pyroelectric sensor circuit theory diagrams;
Fig. 4 is voice alarm circuit schematic diagram;
Fig. 5 is Display and Alarm Circuit schematic diagram.
Embodiment
As Figure 1-5, this infrared thermal release electric secure voice warning device, be made up of voltage-stabilized power supply circuit 1, pyroelectric sensor circuit 2, voice alarm circuit 3 and Display and Alarm Circuit 4, it is characterized in that: voltage-stabilized power supply circuit 1 is for providing 12V and 5V DC voltage for system; Pyroelectric sensor circuit 2 is for detection personnel near charged hazardous location and when entering into warning security area, the infrared signal of human body radiation, then the infrared signal of the human body radiation detected is converted into effective action signal, is transferred to voice alarm circuit 3 and processes; Voice alarm circuit 3 is for after receiving the effective action signal that pyroelectric sensor circuit 2 transmits, this effective action signal is changed into audio alert signal and display control signal, wherein, after audio alert signal is amplified by power amplification circuit, send through loudspeaker, display control signal is input to Display and Alarm Circuit 4; Display and Alarm Circuit 4 controls for the display control signal transmitted by voice alarm circuit 3, sends display alarm signal through display screen.
As Figure 1-5, have transformer T1, bridge rectifier D, three terminal regulator U4 and U5 in described voltage-stabilized power supply circuit 1, have polar capacitor C1, C2 and C3, electric capacity C4 and diode D1, the model of its three terminal regulator U4 is 7812, and the model of three terminal regulator U5 is 7805; Pyroelectric infrared sensor module 5, electric capacity C11, resistance R13 and R14, triode Q1, relay J 1 and diode D3 is had in pyroelectric sensor circuit 2; Have optocoupler U1, speech chip U2, resistance R1 and R2, electric capacity C5 and C6, diode D2, power amplification circuit 6 and loudspeaker SPK in voice alarm circuit 3, the model of its optocoupler U1 is 4N25, and the model of speech chip U2 is PM50; Resistance R5 and R12, triode Q2 and Q3, relay J 2, diode D4 and display screen 7 is had in Display and Alarm Circuit 4;
Its annexation is: in voltage-stabilized power supply circuit 1, the former limit of transformer T1 connects alternating current 220V or 127V power supply, the secondary of transformer T1 connects two ac input ends of bridge rectifier D, the cathode output end of bridge rectifier D is connected with the positive pole of polar capacitor C1, and be connected to the 1st pin of three terminal regulator U4 simultaneously, the cathode output end of bridge rectifier D is connected with the negative pole of polar capacitor C1, and be connected to the 2nd pin of three terminal regulator U4 simultaneously, the 2nd pin ground connection of three terminal regulator U4, 3rd pin of three terminal regulator U4 exports 12V DC voltage, and connect the 1st pin of three terminal regulator U5 simultaneously and have the positive pole of polar capacitor C2, there is the minus earth of polar capacitor C2, the 2nd pin ground connection of three terminal regulator U5, and be connected with the negative pole of polar capacitor C3 and one end of electric capacity C4 simultaneously, 3rd pin of three terminal regulator U5 exports 5V DC voltage, and connect the positive pole of diode D1 simultaneously, there are the positive pole of polar capacitor C3 and the other end of electric capacity C4, the negative pole of diode D1 is connected to the 1st pin of three terminal regulator U5, in pyroelectric sensor circuit 2, pyroelectric infrared sensor module 5 the 1st pin ground connection, and one end of contact resistance R13, the other end ground connection of resistance R13, pyroelectric infrared sensor module 5 the 3rd pin connects 12V DC voltage, its the 2nd pin connects one end of electric capacity C11, one end of the other end contact resistance R14 of electric capacity C11, one end of other end contact resistance R13 of resistance R14 and the base stage of triode Q1, the other end ground connection of resistance R13, the grounded emitter of triode Q1, one end of collector connection relay J1 coil of triode Q1 and the positive pole of diode D3, the other end of relay J 1 coil is connected 12V DC voltage with the negative pole of diode D3, one end ground connection of relay J 1 normally opened contact, in voice alarm circuit 3, one end of the 1st pin contact resistance R1 of optocoupler U1, the other end of resistance R1 connects 12V DC voltage, the 4th pin ground connection of optocoupler U1, 5th pin of optocoupler U1 connects the K1 end of speech chip U2, the GND of speech chip U2 holds ground connection, and connect one end of electric capacity C6, the other end of electric capacity C6 connects the positive pole of diode D2, and hold with the K1 of speech chip U2 simultaneously and be connected, the negative pole of diode D2 connects 5V DC voltage, the ROSC of speech chip U2 holds one end of contact resistance R2, the other end of resistance R2 is connected to the vdd terminal of speech chip U2, and connect one end of electric capacity C5 simultaneously, the vdd terminal of speech chip U2 connects 5V DC voltage, the other end ground connection of electric capacity C5, the SP1 end of speech chip U2 is connected by the positive terminal of power amplification circuit 6 with loudspeaker SPK, the negative pole end ground connection of loudspeaker SPK, in Display and Alarm Circuit 4, one end of resistance R5 connects 5V DC voltage, the other end of resistance R5 is connected to the collector of triode Q2, and the base stage of simultaneously connecting triode Q3, one end of the base stage contact resistance R12 of triode Q2, the grounded emitter of triode Q2 and Q3, one end of collector connection relay J2 coil of triode Q3 and the positive pole of diode D4, the other end of relay J 2 coil is connected 12V DC voltage with the negative pole of diode D4, the power input of display screen 7 connects one end of relay J 2 normally opened contact, the other end of relay J 2 normally opened contact connects 12V DC voltage, the power output end ground connection of display screen 7, between pyroelectric sensor circuit 2 and voice alarm circuit 3, the other end of relay J 1 normally opened contact is connected to the 2nd pin of optocoupler U1, between voice alarm circuit 3 and Display and Alarm Circuit 4,01 end of speech chip U2 is connected to the other end of resistance R12.
As shown in Figure 4, have power amplifier chips U3, resistance R8 ~ R11, have polar capacitor C7 and C8 and electric capacity C9 and C10 in described power amplification circuit 6, the model of its power amplifier chips U3 is TDA2003;
Its annexation is: the 1st pin of power amplifier chips U3 is connected with the negative pole of polar capacitor C8, polar capacitor C8 positive pole is had to be connected with one end of resistance R8, the other end ground connection of resistance R8, 2nd pin of power amplifier chips U3 connects one end of electric capacity C9, one end of other end contact resistance R9 and R11 of electric capacity C9, the other end of resistance R9 is connected to the 4th pin of power amplifier chips U3, and simultaneously contact resistance R10 one end and have the positive pole of polar capacitor C7, the other end of resistance R11 is connected to the 3rd pin of power amplifier chips U3, and ground connection, the other end of resistance R10 connects one end of electric capacity C10, the other end ground connection of electric capacity C10, 5th pin of power amplifier chips U3 connects 12V DC voltage, described power amplification circuit 6, one end of resistance R8 is held with the SP1 of speech chip U2 and is connected, and has the negative pole of polar capacitor C7 to be connected with the positive terminal of loudspeaker SPK.
As shown in Figure 5, in Display and Alarm Circuit 4, display screen 7 is LED display.
As Figure 1-5, in voltage-stabilized power supply circuit 1, the model of bridge rectifier D is IN4004 × 4, and the model of diode D1 is 4148; In pyroelectric sensor circuit 2, the model of triode Q1 is 8050, and the model of diode D3 is 4148; In voice alarm circuit 3, the model of diode D2 is 4148; In Display and Alarm Circuit 4, the model of triode Q2 and Q3 is 8050, and the model of diode D4 is 4148.
This infrared thermal release electric secure voice warning device in use, near the import this warning device being arranged on the charging zone of electrical equipment application places, pyroelectric infrared sensor module 5 probe in the pyroelectric sensor circuit 2 of warning device faces messenger direction.Effective monitor area scope of this warning device is that a radius reaches 5m, and central angle reaches the fan section of 100 °.Effective monitor area of this warning device is entered (namely when there being people, warning security area) interior time, after pyroelectric infrared sensor module 5 detects the infrared signal of human body radiation, triode Q1 conducting in pyroelectric sensor circuit 2, the adhesive of relay J 1 coil, relay J 1 normally opened contact closes, and generates effective action signal, this effective action signal is after the optocoupler U1 in voice alarm circuit 3 isolates, be input to speech chip U2, speech chip U2 is triggered, send that " Keep Clear-High Voltage, take care " audio alert signal, this audio alert signal is after power amplification circuit 6 amplifies, sent by loudspeaker SPK, simultaneously, after speech chip U2 is triggered, also generate display control signal, this display control signal controls relay J 2 coil adhesive in Display and Alarm Circuit 4, relay J 2 normally opened contact closes, display screen 7 switches on power, send display alarm signal, demonstrate that " Keep Clear-High Voltage, take care " font.

Claims (5)

1. an infrared thermal release electric secure voice warning device, be made up of voltage-stabilized power supply circuit (1), pyroelectric sensor circuit (2), voice alarm circuit (3) and Display and Alarm Circuit (4), it is characterized in that: voltage-stabilized power supply circuit (1) is for providing 12V and 5V DC voltage for system; Pyroelectric sensor circuit (2) is for detection personnel near charged hazardous location and when entering into warning security area, the infrared signal of human body radiation, then the infrared signal of the human body radiation detected is converted into effective action signal, is transferred to voice alarm circuit (3) process; Voice alarm circuit (3) is for after receiving the effective action signal that pyroelectric sensor circuit (2) transmits, this effective action signal is changed into audio alert signal and display control signal, wherein, after audio alert signal is amplified by power amplification circuit, send through loudspeaker, display control signal is input to Display and Alarm Circuit (4); Display and Alarm Circuit (4) controls for the display control signal transmitted by voice alarm circuit (3), sends display alarm signal through display screen.
2. infrared thermal release electric secure voice warning device according to claim 1, it is characterized in that: have transformer T1, bridge rectifier D, three terminal regulator U4 and U5 in described voltage-stabilized power supply circuit (1), have polar capacitor C1, C2 and C3, electric capacity C4 and diode D1, the model of its three terminal regulator U4 is 7812, and the model of three terminal regulator U5 is 7805; Pyroelectric infrared sensor module (5), electric capacity C11, resistance R13 and R14, triode Q1, relay J 1 and diode D3 is had in pyroelectric sensor circuit (2); Have optocoupler U1, speech chip U2, resistance R1 and R2, electric capacity C5 and C6, diode D2, power amplification circuit (6) and loudspeaker SPK in voice alarm circuit (3), the model of its optocoupler U1 is 4N25, and the model of speech chip U2 is PM50; Resistance R5 and R12, triode Q2 and Q3, relay J 2, diode D4 and display screen (7) is had in Display and Alarm Circuit (4);
Its annexation is: in voltage-stabilized power supply circuit (1), the former limit of transformer T1 connects alternating current 220V or 127V power supply, the secondary of transformer T1 connects two ac input ends of bridge rectifier D, the cathode output end of bridge rectifier D is connected with the positive pole of polar capacitor C1, and be connected to the 1st pin of three terminal regulator U4 simultaneously, the cathode output end of bridge rectifier D is connected with the negative pole of polar capacitor C1, and be connected to the 2nd pin of three terminal regulator U4 simultaneously, the 2nd pin ground connection of three terminal regulator U4, 3rd pin of three terminal regulator U4 exports 12V DC voltage, and connect the 1st pin of three terminal regulator U5 simultaneously and have the positive pole of polar capacitor C2, there is the minus earth of polar capacitor C2, the 2nd pin ground connection of three terminal regulator U5, and be connected with the negative pole of polar capacitor C3 and one end of electric capacity C4 simultaneously, 3rd pin of three terminal regulator U5 exports 5V DC voltage, and connect the positive pole of diode D1 simultaneously, there are the positive pole of polar capacitor C3 and the other end of electric capacity C4, the negative pole of diode D1 is connected to the 1st pin of three terminal regulator U5, in pyroelectric sensor circuit (2), pyroelectric infrared sensor module (5) the 1st pin ground connection, pyroelectric infrared sensor module (5) the 3rd pin connects 12V DC voltage, its the 2nd pin connects one end of electric capacity C11, one end of the other end contact resistance R14 of electric capacity C11, one end of other end contact resistance R13 of resistance R14 and the base stage of triode Q1, the other end ground connection of resistance R13, the grounded emitter of triode Q1, one end of collector connection relay J1 coil of triode Q1 and the positive pole of diode D3, the other end of relay J 1 coil is connected 12V DC voltage with the negative pole of diode D3, one end ground connection of relay J 1 normally opened contact, in voice alarm circuit (3), one end of the 1st pin contact resistance R1 of optocoupler U1, the other end of resistance R1 connects 12V DC voltage, the 4th pin ground connection of optocoupler U1, 5th pin of optocoupler U1 connects the K1 end of speech chip U2, the GND of speech chip U2 holds ground connection, and connect one end of electric capacity C6, the other end of electric capacity C6 connects the positive pole of diode D2, and hold with the K1 of speech chip U2 simultaneously and be connected, the negative pole of diode D2 connects 5V DC voltage, the ROSC of speech chip U2 holds one end of contact resistance R2, the other end of resistance R2 is connected to the vdd terminal of speech chip U2, and connect one end of electric capacity C5 simultaneously, the vdd terminal of speech chip U2 connects 5V DC voltage, the other end ground connection of electric capacity C5, the SP1 end of speech chip U2 is connected with the positive terminal of loudspeaker SPK by power amplification circuit (6), the negative pole end ground connection of loudspeaker SPK, in Display and Alarm Circuit (4), one end of resistance R5 connects 5V DC voltage, the other end of resistance R5 is connected to the collector of triode Q2, and the base stage of simultaneously connecting triode Q3, one end of the base stage contact resistance R12 of triode Q2, the grounded emitter of triode Q2 and Q3, one end of collector connection relay J2 coil of triode Q3 and the positive pole of diode D4, the other end of relay J 2 coil is connected 12V DC voltage with the negative pole of diode D4, the power input of display screen (7) connects one end of relay J 2 normally opened contact, the other end of relay J 2 normally opened contact connects 12V DC voltage, the power output end ground connection of display screen (7), between pyroelectric sensor circuit (2) and voice alarm circuit (3), the other end of relay J 1 normally opened contact is connected to the 2nd pin of optocoupler U1, between voice alarm circuit (3) and Display and Alarm Circuit (4), 01 end of speech chip U2 is connected to the other end of resistance R12.
3. infrared thermal release electric secure voice warning device according to claim 2, it is characterized in that: have power amplifier chips U3, resistance R8 ~ R11 in described power amplification circuit (6), have polar capacitor C7 and C8 and electric capacity C9 and C10, the model of its power amplifier chips U3 is TDA2003;
Its annexation is: the 1st pin of power amplifier chips U3 is connected with the negative pole of polar capacitor C8, polar capacitor C8 positive pole is had to be connected with one end of resistance R8, the other end ground connection of resistance R8, 2nd pin of power amplifier chips U3 connects one end of electric capacity C9, one end of other end contact resistance R9 and R11 of electric capacity C9, the other end of resistance R9 is connected to the 4th pin of power amplifier chips U3, and simultaneously contact resistance R10 one end and have the positive pole of polar capacitor C7, the other end of resistance R11 is connected to the 3rd pin of power amplifier chips U3, and ground connection, the other end of resistance R10 connects one end of electric capacity C10, the other end ground connection of electric capacity C10, 5th pin of power amplifier chips U3 connects 12V DC voltage, described power amplification circuit (6), one end of resistance R8 is held with the SP1 of speech chip U2 and is connected, and has the negative pole of polar capacitor C7 to be connected with the positive terminal of loudspeaker SPK.
4. the infrared thermal release electric secure voice warning device according to Claims 2 or 3, is characterized in that: in Display and Alarm Circuit (4), and display screen (7) is LED display.
5. the infrared thermal release electric secure voice warning device according to Claims 2 or 3, is characterized in that: in voltage-stabilized power supply circuit (1), and the model of bridge rectifier D is IN4004 × 4, and the model of diode D1 is 4148; In pyroelectric sensor circuit (2), the model of triode Q1 is 8050, and the model of diode D3 is 4148; In voice alarm circuit (3), the model of diode D2 is 4148; In Display and Alarm Circuit (4), the model of triode Q2 and Q3 is 8050, and the model of diode D4 is 4148.
CN201420443581.1U 2014-08-07 2014-08-07 Infrared thermal release electric secure voice warning device CN204066333U (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104966378A (en) * 2015-06-12 2015-10-07 国家电网公司 LED sound-light alarm device
CN104966377A (en) * 2015-06-12 2015-10-07 国家电网公司 Live-line region LED alarm device
CN105261150A (en) * 2015-11-09 2016-01-20 国网浙江三门县供电公司 A danger alarm apparatus
CN106327794A (en) * 2016-09-28 2017-01-11 国网山西省电力公司运城供电公司 Electric power line high voltage danger cautioning and alarming circuit
CN107767630A (en) * 2016-08-23 2018-03-06 哈尔滨飞机工业集团有限责任公司 A kind of audible alarm device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104966378A (en) * 2015-06-12 2015-10-07 国家电网公司 LED sound-light alarm device
CN104966377A (en) * 2015-06-12 2015-10-07 国家电网公司 Live-line region LED alarm device
CN105261150A (en) * 2015-11-09 2016-01-20 国网浙江三门县供电公司 A danger alarm apparatus
CN107767630A (en) * 2016-08-23 2018-03-06 哈尔滨飞机工业集团有限责任公司 A kind of audible alarm device
CN107767630B (en) * 2016-08-23 2019-11-15 哈尔滨飞机工业集团有限责任公司 A kind of audible alarm device
CN106327794A (en) * 2016-09-28 2017-01-11 国网山西省电力公司运城供电公司 Electric power line high voltage danger cautioning and alarming circuit

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