CN204258266U - A kind of novel motor air inlet no-voltage protection device - Google Patents
A kind of novel motor air inlet no-voltage protection device Download PDFInfo
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- CN204258266U CN204258266U CN201420844654.8U CN201420844654U CN204258266U CN 204258266 U CN204258266 U CN 204258266U CN 201420844654 U CN201420844654 U CN 201420844654U CN 204258266 U CN204258266 U CN 204258266U
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Abstract
Utility model provides a kind of novel motor air inlet no-voltage protection device, solves existing forced air supply system without decompression alarm device of air, when high power DC electric machine decompression, because of motor overheating or the too high and problem damaged of temperature; Its scheme is: comprise blast testing circuit, analog to digital conversion circuit, delay circuit, decompression warning circuit, relay circuit and power subsystem, described blast testing circuit is connected with analog to digital conversion circuit, analog to digital conversion circuit is connected with delay circuit, delay circuit is connected with decompression warning circuit, delay circuit is also connected with relay circuit, and blast testing circuit, analog to digital conversion circuit, delay circuit, decompression warning circuit, relay circuit are connected with power subsystem respectively; The utility model structure is simple, automatically regulates, safeguard protection, extends the useful life of motor.
Description
Technical field
The utility model relates to supply air system, particularly a kind of novel motor air inlet no-voltage protection device.
Background technology
The high power DC electric machine of large calorimetric can be produced in the process run; for extending its useful life; need to carry out mandatory ventilation; existing is that direct air-cooler is sent to high power DC electric machine air inlet by airduct; for high power DC electric machine cooling, and this force ventilated mode is not because having o-volt protection warning device, and when airduct decompression, motor is because of for a long time cannot ventilating and cooling; cause motor overheating or temperature too high, easily damage motor.
Utility model content
For above-mentioned situation; for overcoming the defect of prior art; the object of the utility model is just to provide a kind of novel motor air inlet no-voltage protection device; effectively solve existing forced air supply system without decompression alarm device of air; when high power DC electric machine decompression, because of motor overheating or the too high and problem damaged of temperature.
Its scheme solved is, comprise blast testing circuit, analog to digital conversion circuit, delay circuit, decompression warning circuit, relay circuit and power subsystem, described blast testing circuit is connected with analog to digital conversion circuit, analog to digital conversion circuit is connected with delay circuit, delay circuit is connected with decompression warning circuit, delay circuit is also connected with relay circuit, and blast testing circuit, analog to digital conversion circuit, delay circuit, decompression warning circuit, relay circuit are connected with power subsystem respectively.
The utility model structure is simple, automatically regulates, safeguard protection, adds decompression warning circuit, solve existing forced air supply system without decompression alarm device of air, when motor decompression, because of motor overheating or the too high and problem damaged of temperature; Add relay circuit, adopt the method for vulnerabilities scan forceful electric power, control the on off state of motor, ensure that the normal operation of motor, extend the useful life of motor.
Accompanying drawing explanation
Fig. 1 is system principle diagram of the present utility model.
Fig. 2 is power unit circuit figure of the present utility model.
Fig. 3 is the connection layout of blast testing circuit of the present utility model, analog to digital conversion circuit, delay circuit, decompression warning circuit and relay circuit.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Provided by Fig. 1 to Fig. 3; a kind of novel motor air inlet no-voltage protection device of the utility model; comprise blast testing circuit, analog to digital conversion circuit, delay circuit, decompression warning circuit, relay circuit and power subsystem; described blast testing circuit is connected with analog to digital conversion circuit; analog to digital conversion circuit is connected with delay circuit; delay circuit is connected with decompression warning circuit; delay circuit is also connected with relay circuit, and blast testing circuit, analog to digital conversion circuit, delay circuit, decompression warning circuit, relay circuit are connected with power subsystem respectively.
Described power subsystem, comprise transformer TR1, full-bridge rectifier BR1, electric capacity C9 and three terminal regulator U4, the primary coil of described transformer TR1 connects alternating current, the two ends of the secondary coil of transformer TR1 connect the two ends of the ac input end of full-bridge rectifier BR1 respectively, first DC output end of full-bridge rectifier BR1 connects one end of electric capacity C9, the other end ground connection GND of electric capacity C9, first DC output end of full-bridge rectifier BR1 also connects input 1 pin of three terminal regulator U4, input 1 pin of three terminal regulator U4 connects one end of electrochemical capacitor C6, the other end ground connection GND of electrochemical capacitor C6, input 1 pin of three terminal regulator U4 also connects one end of electric capacity C5, the other end ground connection GND of electric capacity C5, output 3 pin of three terminal regulator U4 connects one end of electric capacity C7, the other end ground connection GND of electric capacity C7, output 3 pin of three terminal regulator U4 also connects one end of electrochemical capacitor C8, the other end ground connection GND of electrochemical capacitor C8, the earth terminal 2 pin ground connection GND of three terminal regulator U4, the second DC output end ground connection GND of full-bridge rectifier BR1, output 3 pin of three terminal regulator U4 is leading-out terminal VOUT.
Described blast testing circuit, analog to digital conversion circuit, delay circuit, decompression warning circuit and relay circuit, comprise pressure sensor M1, analog to digital converter U1, operational amplifier U2, timer U3, timer U5 and normally opened relay RL1, one end of the 1 pin contact resistance R1 of described pressure sensor M1, 1 pin of pressure sensor M1 also connects one end of electric capacity C1, the other end of resistance R1 and the other end of electric capacity C1 all ground connection GND, the 2 pin ground connection GND of pressure sensor M1, 3 pins of pressure sensor M1 connect the leading-out terminal VOUT in power subsystem, 3 pins of 1 pin of pressure sensor M1 also connection mode number converter U1, the 1 pin ground connection GND of analog to digital converter U1, the 2 pin ground connection GND of analog to digital converter U1, 7 pins of analog to digital converter U1 connect clock signal, the 4 pin ground connection GND of analog to digital converter U1, 8 pins of analog to digital converter U1 connect the leading-out terminal VOUT in power subsystem, 6 pins of the 5 pin connection mode number converter U1 of analog to digital converter U1, the input in the same way of 5 pins of analog to digital converter U1 also concatenation operation amplifier U2, the reverse input end ground connection GND of operational amplifier U2, the output of operational amplifier U2 connects 2 pins of timer U3, 2 pins of timer U3 connect 6 pins of timer U3, 6 pins of timer U3 connect one end of electric capacity C2, the other end ground connection GND of electric capacity C2, one end of 6 pin contact resistance R6 of timer, the other end of resistance R6 connects 7 pins of timer U3, one end of the 7 pin contact resistance R3 of timer U3, the other end of resistance R3 connects the leading-out terminal VOUT in power subsystem, 4 pins and 8 pins of timer U3 are all connected the leading-out terminal VOUT in power subsystem, 5 pins of timer U3 connect one end of electric capacity C3, the other end ground connection GND of electric capacity C3, the 1 pin ground connection GND of timer U3, 3 pins of timer U3 connect 2 pins of timer U5, 2 pins of timer U5 connect 6 pins of timer U5, 6 pins of timer U5 connect one end of electric capacity C10, the other end ground connection GND of electric capacity C10, one end of the 6 pin contact resistance R5 of timer U5, the other end of resistance R5 connects 7 pins of timer U5, one end of the 7 pin contact resistance R6 of timer U5, the other end of resistance R6 connects the leading-out terminal VOUT in power subsystem, 4 pins and 8 pins of timer U5 are all connected the leading-out terminal VOUT in power subsystem, 5 pins of timer U5 connect one end of electric capacity C11, the other end ground connection GND of electric capacity C11, the 1 pin ground connection GND of timer U5, 3 pins of timer U5 connect one end of buzzer BUZ1, one end of one end of buzzer BUZ1 also contact resistance R4, the other end of resistance R4 connects one end of electric capacity C4, the other end ground connection GND of electric capacity C4, 3 pins of timer U5 also connect one end of the coil of relay R L1, the other end ground connection GND of the coil of relay R L1, the normally opened contact of relay R L1 is connected with motor.
Described three terminal regulator U4 is three terminal regulator 7805.
Described analog to digital converter U1 is ADC0832, and timer U3 and timer U5 is timer NE555, and pressure sensor M1 is MPX4115 pressure sensor.
The utility model in use, a kind of novel motor air inlet no-voltage protection device, comprise blast testing circuit, analog to digital conversion circuit, delay circuit, decompression warning circuit, relay circuit and power subsystem, described blast testing circuit is connected with analog to digital conversion circuit, analog to digital conversion circuit is connected with delay circuit, delay circuit is connected with decompression warning circuit, delay circuit is also connected with relay circuit, blast testing circuit, analog to digital conversion circuit, delay circuit, decompression warning circuit, relay circuit is connected with power subsystem respectively, power subsystem and blast testing circuit, analog to digital conversion circuit, delay circuit, decompression warning circuit and relay circuit provide electric energy.
Described blast testing circuit is contained in motor air inlet, detect the pressure that air-cooler is produced by the wind that airduct is sent to motor air port, when air-cooler normally works, when namely blowing normal, the output level of 1 pin of the pressure sensor M1 in the utility model is always high level, 5 pins of analog to digital converter U1 export as low level, the output of operational amplifier U2 is low level, timer U3 and timer U5 does not work, the coil no current of relay R L1 passes through, the normally opened contact of relay R L1 is also in off-state, motor is in normal operating state, when air-cooler can not normally be blown suddenly, 1 pin level being contained in the pressure sensor M1 in the blast testing circuit of motor air inlet exports and becomes low level from high level, 5 pins of analog to digital converter U1 export as high level, high level is after operational amplifier U2 amplifies, 2 pins transferring to timer U3 trigger Enable Pin, timer U3 is started working, make delay circuit time delay after 5 minutes, decompression warning circuit and relay circuit are just started working, the utility model two panels timer NE555, ensure that the accuracy of time delay, in 5 minutes periods of time delay, 3 pins of timer U3 and 3 pins of timer U5 not output levels, namely do not report to the police and work when decompression warning circuit and relay circuit are in time delay 5 minutes, in time delay after 5 minutes, decompression warning circuit is reported to the police immediately, normally opened contact in relay circuit closes, control the disconnection of motor switch, to reach the object with vulnerabilities scan forceful electric power.
The utility model structure is simple, automatically regulates, safeguard protection, adds decompression warning circuit, solve existing forced air supply system without decompression alarm device of air, when motor decompression, because of motor overheating or the too high and problem damaged of temperature; Add relay circuit, adopt the method for vulnerabilities scan forceful electric power, control the on off state of motor, ensure that the normal operation of motor, extend the useful life of motor.
Claims (5)
1. a novel motor air inlet no-voltage protection device; comprise blast testing circuit, analog to digital conversion circuit, delay circuit, decompression warning circuit, relay circuit and power subsystem; described blast testing circuit is connected with analog to digital conversion circuit; analog to digital conversion circuit is connected with delay circuit; delay circuit is connected with decompression warning circuit; delay circuit is also connected with relay circuit, and blast testing circuit, analog to digital conversion circuit, delay circuit, decompression warning circuit, relay circuit are connected with power subsystem respectively.
2. a kind of novel motor air inlet no-voltage protection device according to claim 1, it is characterized in that, described power subsystem, comprise transformer TR1, full-bridge rectifier BR1, electric capacity C9 and three terminal regulator U4, the primary coil of described transformer TR1 connects alternating current, the two ends of the secondary coil of transformer TR1 connect the two ends of the ac input end of full-bridge rectifier BR1 respectively, first DC output end of full-bridge rectifier BR1 connects one end of electric capacity C9, the other end ground connection GND of electric capacity C9, first DC output end of full-bridge rectifier BR1 also connects input 1 pin of three terminal regulator U4, input 1 pin of three terminal regulator U4 connects one end of electrochemical capacitor C6, the other end ground connection GND of electrochemical capacitor C6, input 1 pin of three terminal regulator U4 also connects one end of electric capacity C5, the other end ground connection GND of electric capacity C5, output 3 pin of three terminal regulator U4 connects one end of electric capacity C7, the other end ground connection GND of electric capacity C7, output 3 pin of three terminal regulator U4 also connects one end of electrochemical capacitor C8, the other end ground connection GND of electrochemical capacitor C8, the earth terminal 2 pin ground connection GND of three terminal regulator U4, the second DC output end ground connection GND of full-bridge rectifier BR1, output 3 pin of three terminal regulator U4 is leading-out terminal VOUT.
3. a kind of novel motor air inlet no-voltage protection device according to claim 1, it is characterized in that, described blast testing circuit, analog to digital conversion circuit, delay circuit, decompression warning circuit and relay circuit, comprise pressure sensor M1, analog to digital converter U1, operational amplifier U2, timer U3, timer U5 and normally opened relay RL1, one end of the 1 pin contact resistance R1 of described pressure sensor M1, 1 pin of pressure sensor M1 also connects one end of electric capacity C1, the other end of resistance R1 and the other end of electric capacity C1 all ground connection GND, the 2 pin ground connection GND of pressure sensor M1, 3 pins of pressure sensor M1 connect the leading-out terminal VOUT in power subsystem, 3 pins of 1 pin of pressure sensor M1 also connection mode number converter U1, the 1 pin ground connection GND of analog to digital converter U1, the 2 pin ground connection GND of analog to digital converter U1, 7 pins of analog to digital converter U1 connect clock signal, the 4 pin ground connection GND of analog to digital converter U1, 8 pins of analog to digital converter U1 connect the leading-out terminal VOUT in power subsystem, 6 pins of the 5 pin connection mode number converter U1 of analog to digital converter U1, the input in the same way of 5 pins of analog to digital converter U1 also concatenation operation amplifier U2, the reverse input end ground connection GND of operational amplifier U2, the output of operational amplifier U2 connects 2 pins of timer U3, 2 pins of timer U3 connect 6 pins of timer U3, 6 pins of timer U3 connect one end of electric capacity C2, the other end ground connection GND of electric capacity C2, one end of 6 pin contact resistance R6 of timer, the other end of resistance R6 connects 7 pins of timer U3, one end of the 7 pin contact resistance R3 of timer U3, the other end of resistance R3 connects the leading-out terminal VOUT in power subsystem, 4 pins and 8 pins of timer U3 are all connected the leading-out terminal VOUT in power subsystem, 5 pins of timer U3 connect one end of electric capacity C3, the other end ground connection GND of electric capacity C3, the 1 pin ground connection GND of timer U3, 3 pins of timer U3 connect 2 pins of timer U5, 2 pins of timer U5 connect 6 pins of timer U5, 6 pins of timer U5 connect one end of electric capacity C10, the other end ground connection GND of electric capacity C10, one end of the 6 pin contact resistance R5 of timer U5, the other end of resistance R5 connects 7 pins of timer U5, one end of the 7 pin contact resistance R6 of timer U5, the other end of resistance R6 connects the leading-out terminal VOUT in power subsystem, 4 pins and 8 pins of timer U5 are all connected the leading-out terminal VOUT in power subsystem, 5 pins of timer U5 connect one end of electric capacity C11, the other end ground connection GND of electric capacity C11, the 1 pin ground connection GND of timer U5, 3 pins of timer U5 connect one end of buzzer BUZ1, one end of one end of buzzer BUZ1 also contact resistance R4, the other end of resistance R4 connects one end of electric capacity C4, the other end ground connection GND of electric capacity C4, 3 pins of timer U5 also connect one end of the coil of relay R L1, the other end ground connection GND of the coil of relay R L1, the normally opened contact of relay R L1 is connected with motor.
4. a kind of novel motor air inlet no-voltage protection device according to claim 2, it is characterized in that, described three terminal regulator U4 is three terminal regulator 7805.
5. a kind of novel motor air inlet no-voltage protection device according to claim 3; it is characterized in that; described analog to digital converter U1 is ADC0832, and timer U3 and timer U5 is timer NE555, and pressure sensor M1 is MPX4115 pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420844654.8U CN204258266U (en) | 2014-12-29 | 2014-12-29 | A kind of novel motor air inlet no-voltage protection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420844654.8U CN204258266U (en) | 2014-12-29 | 2014-12-29 | A kind of novel motor air inlet no-voltage protection device |
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| CN204258266U true CN204258266U (en) | 2015-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420844654.8U Active CN204258266U (en) | 2014-12-29 | 2014-12-29 | A kind of novel motor air inlet no-voltage protection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110220537A (en) * | 2019-06-12 | 2019-09-10 | 五邑大学 | A kind of detection circuit applied to piezoresistive transducer |
-
2014
- 2014-12-29 CN CN201420844654.8U patent/CN204258266U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110220537A (en) * | 2019-06-12 | 2019-09-10 | 五邑大学 | A kind of detection circuit applied to piezoresistive transducer |
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