CN206781538U - The high warning device of locomotive water temperature - Google Patents
The high warning device of locomotive water temperature Download PDFInfo
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- CN206781538U CN206781538U CN201720616442.8U CN201720616442U CN206781538U CN 206781538 U CN206781538 U CN 206781538U CN 201720616442 U CN201720616442 U CN 201720616442U CN 206781538 U CN206781538 U CN 206781538U
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Abstract
The utility model discloses the high warning device of locomotive water temperature, it is related to technical field of circuit design, the device is specific to the warning device of diesel engine water-thermometer research and development, by the way that warning circuit is arranged on inside water-thermometer, worked with together with water-thermometer, when the indicated value of water-thermometer exceedes critical value, warning device sends sound and light alarm.Water temperature over-high is avoided, causes that locomotive piston, steel wall, cylinder, bent axle equitemperature are too high, and machine oil is thinning, loses lubrication.The temperature warning of highly effective and safe is realized, avoids the problem of water tank temperature is too high extraordinary caused, the security of locomotive must be improved significantly.Simultaneously it is simple in construction, detection sensitivity is higher, better performances, be highly suitable for the locomotive higher to security requirement.
Description
Technical field
It the utility model is related to technical field of circuit design, the more particularly to high warning device of locomotive water temperature.
Background technology
The water temperature over-high of locomotive, can cause that locomotive piston, steel wall, cylinder, bent axle equitemperature are too high, and machine oil is thinning, loses
Lubrication.This safe and stable operation to locomotive has a serious impact.
Utility model content
The utility model embodiment provides the high warning device of locomotive water temperature, to solve to ask present in prior art
Topic.
A kind of high warning device of locomotive water temperature, including temperature sensing circuit, processes temperature signal circuit and warning circuit, institute
The input for stating temperature sensing circuit is connected on locomotive water-thermometer, and to gather water tank temperature value, output end is connected to described
The input of processes temperature signal circuit;The processes temperature signal circuit compares the water tank temperature collected value to be sent into
Circuit is handled;The output end of the processes temperature signal circuit is connected to the input of the warning circuit.
The high warning device of locomotive water temperature in the utility model embodiment, the device are specific to the research and development of diesel engine water-thermometer
Warning device, by by warning circuit be arranged on water-thermometer inside, worked together with water-thermometer, when the indicated value of water-thermometer surpasses
When crossing critical value, warning device sends sound and light alarm.Water temperature over-high is avoided, causes locomotive piston, steel wall, cylinder, bent axle etc.
Temperature is too high, and machine oil is thinning, loses lubrication.The temperature warning of highly effective and safe is realized, it is excessively superb to avoid water tank temperature
The problem of caused by often, the security of locomotive must be improved significantly.Simultaneously it is simple in construction, detection sensitivity is higher, better performances,
It is highly suitable for the locomotive higher to security requirement.
Brief description of the drawings
Fig. 1 is the structure chart for the high warning device of locomotive water temperature that the utility model embodiment provides;
Fig. 2 is the circuit diagram of temperature signal processing circuit in Fig. 1;
Fig. 3 is the circuit diagram of temperature sensing circuit in Fig. 1;
Fig. 4 is the circuit diagram of warning circuit in Fig. 1.
Embodiment
Below in conjunction with the accompanying drawings, an embodiment of the present utility model is described in detail, it is to be understood that this
The protection domain of utility model is not limited by embodiment.
Reference picture 1, the utility model provide the high warning device of locomotive water temperature, and the device includes temperature sensing circuit, temperature
Signal processing circuit and warning circuit are spent, the input of the temperature sensing circuit is connected on locomotive water-thermometer, to gather
Water tank temperature value, output end are connected to the input of the processes temperature signal circuit;The processes temperature signal circuit to
The water tank temperature value collected feeding comparison circuit is handled;The output end of the processes temperature signal circuit is connected to institute
State the input of warning circuit.
Reference picture 2, Fig. 3 and Fig. 4 in the lump, the temperature sensing circuit are mainly made up of chip U3 and surrounding component, institute
State processes temperature signal electricity router chip U2, U4 and surrounding component composition, the warning circuit are made up of chip U5.In this reality
Apply in example, chip U5 is hex inverter 74HC04, and chip U3 is LM7301 operational amplifiers, and chip U2, U4 are high gain operational
Amplifier UA741M.
Chip U3 in-phase input end is connected to binding post P2 pin 2, chip U3 reverse input end by resistance R9
It is grounded by resistance R5, binding post P2 pin 3 is grounded, and pin 1 meets power supply VCC by resistance R4, while passes through series connection
Resistance R4 and electric capacity C3 ground connection, chip U3 positive power supply termination power VCC, is grounded, negative sense power supply simultaneously also by electric capacity C1
End ground connection, is parallel with resistance R7 and electric capacity C5 between chip U3 output end and reverse input end, reverse input end with mutually defeated
Enter and be connected with electric capacity C7 between holding.
Chip U2 pin 2 is connected to chip U3 output end, while sending and receiving light two by the resistance RP1 and RP2 of series connection
Pole pipe LED3 negative pole, chip U2 pin 3 connect pin 6 by electric capacity C6, and pin 3 is simultaneously by resistance R14 with sliding variable resistance
Device RP4 sliding end connection, slide rheostat RP4 one end ground connection, the other end connect power supply by the resistance R8 and resistance R11 of series connection
VCC, while the resistance R11 by connecting and electric capacity C8 ground connection are also crossed, one voltage-regulator diode of slide rheostat RP4 both ends parallel connection
DW2, chip U2 pin 4 are grounded.Chip U4 pin 2 connects diode D1 positive poles by the resistance R10 and resistance RP3 of series connection,
Diode D1 negative pole connection chip U2 pin 7, while power supply VCC is also met, pass through the electricity of parallel connection between resistance R10 and RP3
Hold C9 and C10 ground connection, core in parallel with resistance R13 after resistance RP3 both ends parallel diode D2, diode D2 and electric capacity C10 series connection
Piece U4 pin 3 is connected between resistance R8 and R11 by resistance R12, and chip U4 pin 4 is grounded, and chip U4 pin 7 connects
Chip U2 pin 7, it is grounded simultaneously also by electric capacity C4, the chip U4 sending and receiving optical diode LED2 of pin 6 negative pole, luminous two
Pole pipe LED2 connects with LED3 positive pole, while is connected by resistance R15 connections power supply VCC, diode D3 with D4 negative pole, just
Pole is connected between LED 2 and LED3 simultaneously, while diode D4 positive pole is connected to voltage-regulator diode DW3's
Negative pole, it is grounded simultaneously also by electric capacity C11.In the present embodiment, the LED 2 and LED3 be respectively green and
Red light emitting diodes, play delayed alarm and overload alarm respectively.
Chip U1 is model TLP127 coupler, and it includes an infrarede emitting diode and Darlington photoelectric crystal
Pipe, the negative pole of infrarede emitting diode are connected to rectifier bridge BG1 pin V-, resistance R3, the light-emitting diodes that positive pole passes through series connection
Pipe LED1 and resistance R2 is connected to the pin V+ of rectifier bridge, and the wherein negative pole of LED 1 connects with resistance R3, surely
Pressure diode DW1 positive pole is connected with rectifier bridge BG pin V-, and negative pole is connected to bearing for resistance R3 and LED 1
Between pole;Connected between rectifier bridge BG1 pin V+ and pin V- by electric capacity C2, pin AC is drawn by resistance R1 with another
Pin AC is respectively connecting to binding post P1 pin 1 and pin 2.
Chip U5 pin 1A connecting triodes Q3 colelctor electrode, triode Q3 grounded emitter, base stage pass through resistance
R18 is connected with voltage-regulator diode DW3 positive pole, while base stage crosses resistance R21 ground connection, and chip U5 pin 1A passes through series connection simultaneously
Resistance R20 be connected with resistance R22 with pin 1Y, pin 2A, chip U5 pin 2Y, pin 3A, pin 6A connections, simultaneously lead to
Cross electric capacity C12 to be connected between resistance R20 and resistance R22, pin 3Y, 4A, 5A and 6Y are connected and connect to light emitting diode
LED5 positive pole, pin GND ground connection, pin 4Y are connected with pin 5Y and are connected to the positive pole of LED 4, and pin VC leads to
Cross resistance R16 and meet power supply VCC, while connect adjustable voltage-stabiliser tube DW4 control terminal, resistance R16 and adjustable voltage-stabiliser tube DW4 negative pole connects
Connect, DW4 plus earth.
Binding post P3 pin 1 meets power supply VCC, while connects transient supression diode TVS1 one end, transient supression two
Pole pipe TVS1 other end ground connection, binding post P3 pin 2 connects binding post P4 pin 3, while connects diode D5's
Negative pole, also connects triode Q1 colelctor electrode simultaneously, and triode Q1 base stage crosses resistance R17 sending and receiving optical diodes LED4 negative pole;
Binding post P4 pin 1 connects triode Q2 colelctor electrode, while connects diode D6 negative pole, and binding post P4 pin 2 connects
Meet power supply VCC, triode Q2 base stage by resistance R19 sending and receiving optical diodes LED5 negative pole, triode Q2 emitter stage with
Diode D6 positive pole, triode Q1 emitter stage, diode D5 positive pole are grounded together.In the present embodiment, LED4 is red
Color light emitting diode, LED5 are white light-emitting diode.
The course of work:Detection temperature value is continued by temperature sensing circuit first, and water tank temperature value is sent back into temperature
Signal processing circuit processing, judge, detect that temperature value is extraordinary, then alarm signal is sent to warning circuit, then reported
It is alert.
In summary, the high warning device of locomotive water temperature that the utility model embodiment provides, it is real by temperature sensing circuit
When detect water tank temperature value, then transfer to processes temperature signal circuit to be handled, judged, if detection pressure value it is extraordinary and
Shi Jinhang alarms.Realize the temperature warning of highly effective and safe, avoid water tank temperature it is extraordinary caused by locomotive piston, steel wall,
Cylinder, bent axle equitemperature are too high, and machine oil is thinning, lose lubrication problem, must improve the security of locomotive significantly.Tie simultaneously
Structure is simple, detection sensitivity is higher, better performances, is highly suitable for the locomotive higher to security requirement.
Disclosed above is only several specific embodiments of the present utility model, and still, the utility model embodiment is not office
It is limited to this, the changes that any person skilled in the art can think of should all fall into the scope of protection of the utility model.
Claims (7)
1. a kind of high warning device of locomotive water temperature, it is characterised in that including temperature sensing circuit, processes temperature signal circuit and report
Alert circuit, the input of the temperature sensing circuit are connected on locomotive water-thermometer, and to gather water tank temperature value, output end connects
It is connected on the input of the processes temperature signal circuit;The processes temperature signal circuit is to the water tank temperature value that will collect
Comparison circuit is sent into be handled;The output end of the processes temperature signal circuit is connected to the input of the warning circuit.
2. the device as described in claim 1, it is characterised in that the temperature sensing circuit includes chip U3, the temperature letter
Number process circuit includes chip U2, U4, and the warning circuit is hex inverter 74HC04 including chip U5, the chip U5, core
Piece U3 is LM7301 operational amplifiers, and chip U2, U4 are high gain operational amplifier UA741M.
3. device as claimed in claim 2, it is characterised in that chip U3 in-phase input end is connected to terminals by resistance R9
Sub- P2 pin 2, chip U3 reverse input end are grounded by resistance R5, and binding post P2 pin 3 is grounded, and pin 1 passes through
Resistance R4 meets power supply VCC, while is grounded by the resistance R4 and electric capacity C3 of series connection, chip U3 positive power supply termination power VCC,
It is grounded simultaneously also by electric capacity C1, negative sense power end ground connection, resistance is parallel between chip U3 output end and reverse input end
R7 and electric capacity C5, is connected with electric capacity C7 between reverse input end and in-phase input end.
4. device as claimed in claim 3, it is characterised in that chip U2 pin 2 is connected by the resistance RP1 and RP2 of series connection
Chip U3 output end, while sending and receiving optical diode LED3 negative pole are connected to, chip U2 pin 3 connects pin 6 by electric capacity C6,
Pin 3 is connected by resistance R14 with slide rheostat RP4 sliding end simultaneously, slide rheostat RP4 one end ground connection, the other end
Power supply VCC is connect by the resistance R8 and resistance R11 of series connection, while also crosses the resistance R11 by connecting and electric capacity C8 ground connection, is slided
One voltage-regulator diode DW2 of rheostat RP4 both ends parallel connection, chip U2 pin 4 are grounded;
Chip U4 pin 2 connects diode D1 positive poles, diode D1 negative pole connection by the resistance R10 and resistance RP3 of series connection
Chip U2 pin 7, while power supply VCC is also met, it is grounded between resistance R10 and RP3 by the electric capacity C9 and C10 of parallel connection, resistance
RP3 both ends parallel diode D2, diode D2 and electric capacity C10 are in parallel with resistance R13 after connecting, and chip U4 pin 3 passes through electricity
Resistance R12 is connected between resistance R8 and R11, and chip U4 pin 4 is grounded, and chip U4 pin 7 connects chip U2 pin 7, together
When be grounded also by electric capacity C4, the chip U4 sending and receiving optical diode LED2 of pin 6 negative pole, LED 2 and LED3's
Positive pole connects, while is connected by resistance R15 connections power supply VCC, diode D3 with D4 negative pole, and positive pole is connected to luminous simultaneously
Between diode (LED) 2 and LED3, while diode D4 positive pole is connected to voltage-regulator diode DW3 negative pole, simultaneously also by electricity
Hold C11 ground connection;
Chip U1 is model TLP127 coupler, including an infrarede emitting diode and darlington phototransistor are red
The negative pole of UV light-emitting diode is connected to rectifier bridge BG1 pin V-, resistance R3, LED 1 of the positive pole by series connection
And resistance R2 is connected to the pin V+ of rectifier bridge, the wherein negative pole of LED 1 connects with resistance R3, the pole of voltage stabilizing two
Pipe DW1 positive pole is connected with rectifier bridge BG pin V-, and negative pole is connected between the negative pole of resistance R3 and LED 1;
Connected between rectifier bridge BG1 pin V+ and pin V- by electric capacity C2, pin AC passes through AC points of resistance R1 and another pin
Binding post P1 pin 1 and pin 2 are not connected to.
5. device as claimed in claim 4, it is characterised in that the LED 2 and LED3 are respectively green and red
Color light emitting diode, plays delayed alarm and overload alarm respectively.
6. device as claimed in claim 4, it is characterised in that chip U5 pin 1A connecting triodes Q3 colelctor electrode, three
Pole pipe Q3 grounded emitter, base stage is connected by resistance R18 with voltage-regulator diode DW3 positive pole, while base stage crosses resistance R21
Ground connection, chip U5 pin 1A are connected by the resistance R20 and resistance R22 of series connection with pin 1Y, pin 2A simultaneously, chip U5's
Pin 2Y, pin 3A, pin 6A connections, while be connected to by electric capacity C12 between resistance R20 and resistance R22, pin 3Y, 4A,
5A and 6Y is connected and connect to the positive pole of LED 5, pin GND ground connection, and pin 4Y is connected with pin 5Y and is connected to hair
Optical diode LED4 positive pole, pin VC meet power supply VCC by resistance R16, while connect adjustable voltage-stabiliser tube DW4 control terminal, electricity
Resistance R16 is connected with adjustable voltage-stabiliser tube DW4 negative pole, DW4 plus earth;
Binding post P3 pin 1 meets power supply VCC, while connects transient supression diode TVS1 one end, transient supression diode
TVS1 other end ground connection, binding post P3 pin 2 connect binding post P4 pin 3, while connect the negative of diode D5
Pole, also connects triode Q1 colelctor electrode simultaneously, and triode Q1 base stage crosses resistance R17 sending and receiving optical diodes LED4 negative pole;Connect
Line terminals P4 pin 1 connects triode Q2 colelctor electrode, while connects diode D6 negative pole, and binding post P4 pin 2 connects
Power supply VCC, triode Q2 base stage pass through resistance R19 sending and receiving optical diodes LED5 negative pole, triode Q2 emitter stage and two
Pole pipe D6 positive pole, triode Q1 emitter stage, diode D5 positive pole are grounded together.
7. device as claimed in claim 6, it is characterised in that LED4 is red light emitting diodes, and LED5 is white luminous two
Pole pipe.
Priority Applications (1)
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CN201720616442.8U CN206781538U (en) | 2017-05-27 | 2017-05-27 | The high warning device of locomotive water temperature |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201720616442.8U CN206781538U (en) | 2017-05-27 | 2017-05-27 | The high warning device of locomotive water temperature |
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Publication Number | Publication Date |
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CN206781538U true CN206781538U (en) | 2017-12-22 |
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CN201720616442.8U Active CN206781538U (en) | 2017-05-27 | 2017-05-27 | The high warning device of locomotive water temperature |
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CN (1) | CN206781538U (en) |
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2017
- 2017-05-27 CN CN201720616442.8U patent/CN206781538U/en active Active
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Effective date of registration: 20200731 Address after: Room 503, building 2, No. 111, Songshan Road, Nangang District, Harbin City, Heilongjiang Province Patentee after: Harbin pinglei Electronic Equipment Co., Ltd Address before: 150025 A21, Berlin four seasons, Limin Development Zone, Harbin City, Heilongjiang Province, Xueyuan Road Patentee before: HARBIN HENGDA TRAFFIC EQUIPMENT TECHNOLOGY DEVELOPMENT Co.,Ltd. |