CN203962270U - The digital instrument of a kind of small fuel oil, gas electricity generator - Google Patents
The digital instrument of a kind of small fuel oil, gas electricity generator Download PDFInfo
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- CN203962270U CN203962270U CN201420382895.5U CN201420382895U CN203962270U CN 203962270 U CN203962270 U CN 203962270U CN 201420382895 U CN201420382895 U CN 201420382895U CN 203962270 U CN203962270 U CN 203962270U
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- 239000000295 fuel oil Substances 0.000 title claims abstract description 13
- 230000005611 electricity Effects 0.000 title claims abstract description 11
- 238000013519 translation Methods 0.000 claims abstract description 13
- 238000013461 design Methods 0.000 claims abstract description 3
- 238000005070 sampling Methods 0.000 claims description 7
- 230000007246 mechanism Effects 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 abstract description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 8
- 229910052710 silicon Inorganic materials 0.000 description 8
- 239000010703 silicon Substances 0.000 description 8
- 239000007789 gas Substances 0.000 description 5
- 230000006870 function Effects 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 230000009993 protective function Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Control Of Eletrric Generators (AREA)
Abstract
The utility model discloses the digital instrument of a kind of small fuel oil, gas electricity generator, the input end of described single-chip microcomputer connects voltage collection circuit by A/D translation interface, the output terminal of described single-chip microcomputer connects flame-out drive circuit, digital display circuit by I/O mouth, described flame-out drive circuit is connected with the power supply of generator igniter, and power circuit is powered the output voltage of generator after rectifier transformer to complete machine; Described single-chip microcomputer is according to the voltage sample value of voltage collection circuit input, calculate the virtual value of generator output voltage, when the virtual value of the voltage calculating surpasses or during lower than design load, output control signal starts flame-out drive circuit, closes the power supply of generator igniter by flame-out drive circuit.The utility model has been realized the real-time monitoring to voltage, frequency and the generating dutation of generator output, and when generator output voltage overvoltage, when under-voltage, generator is quit work, and gets rid of various potential safety hazards.
Description
Technical field
The utility model relates to technical field of generators, is specifically related to the digital watch of a kind of small fuel oil, gas electricity generator.
Background technique
Conventional small fuel oil alternator or combustion gas alternator all adopt pointer instrument to make to show output voltage and the output current of generator, and pointer instrument function singleness and complex structure, cost are high.Highi degree of accuracy in recent years, low cost, multi-functional digital instrument replaces gradually pointer instrument and starts to be applied on Small Universal fuel oil alternator and combustion gas alternator.But no matter be pointer instrument or digital instrument; its function is still confined to the output voltage to generator, output current, electric voltage frequency; measurement and the demonstration of the generating such as generating dutation situation, all do not possess monitoring and protective function to generator abnormal work state.Due to the narrow limitation of the voltage regulator self of generator, when voltage regulator self damages, generator is by out of hand, and lasting High voltage output will cause consumer impaired, even the serious accident such as initiation fire.
Model utility content
The purpose of this utility model is in order to overcome the deficiencies in the prior art, the digital instrument of a kind of small fuel oil, gas electricity generator is provided, this digital instrument not only can be monitored voltage, electric current, power, frequency and the generating dutation of generator output in real time, and when generator output voltage overvoltage, when under-voltage, generator is quit work, thereby get rid of various potential safety hazards.
A kind of small fuel oil, the digital instrument of gas electricity generator, it is characterized in that: comprise single-chip microcomputer, voltage collection circuit, flame-out drive circuit, digital display diverter circuit, digital display circuit and power circuit, the input end of described single-chip microcomputer connects voltage collection circuit by A/D translation interface, the input end of single-chip microcomputer is connected with digital display diverter circuit by I/O mouth, the button of described digital display diverter circuit switches display parameters, the output terminal of described single-chip microcomputer connects flame-out drive circuit by I/O mouth, digital display circuit, described flame-out drive circuit is connected with the power supply of generator igniter, power circuit is powered to complete machine, described voltage collection circuit is for gathering the voltage of generator output, and the voltage sample value of collection is passed to single-chip microcomputer by A/D translation interface, described single-chip microcomputer is according to the voltage sample value of input, calculate the virtual value of generator output voltage, statistics electric voltage frequency, single accumulative total generating dutation, information after processing is delivered to digital display circuit and shows, when the virtual value of the voltage calculating surpasses or during lower than design load, output control signal starts flame-out drive circuit, closes the power supply of generator igniter by flame-out drive circuit.
Also comprise current collection circuit, three of the input end of described single-chip microcomputer is connected with current collection circuit by A/D translation interface, described current collection circuit, the current information of exporting by circuit sensor Real-time Collection generator, and the current sampling data of collection is passed to single-chip microcomputer by A/D translation interface, described single-chip microcomputer is processed the current sampling data of input, calculate output power, digital display circuit shows.
Described power circuit is powered the output voltage of generator after rectifier transformer to complete machine.
Described flame-out drive circuit adopts isolated drive circuit.
The beneficial effects of the utility model: the utility model is monitored voltage, the current information of generator output in real time by voltage collection circuit, current collection circuit, button by digital display diverter circuit switches the display parameters of single-chip microcomputer output, and described single-chip microcomputer calculates the virtual value of current generator output voltage according to voltage, the current value of input, the virtual value of electric current, frequency, power, generating dutation; Voltage sample value and setting voltage value are compared simultaneously, when generator output abnormality (lower than minimum or the peak set), high-level control signal of one of them I/O mouth output of single-chip microcomputer is to flame-out drive circuit, by flame-out drive circuit, close the power supply of the ignition mechanism of generator, thereby generator is quit work.The utility model adopts the ignition mechanism of directly closing generator, has fundamentally disconnected all output sources of generator, has got rid of various potential safety hazards.Adopt output voltage (effective value), electric current (effective value), frequency, power and the generator operating time of the generator of the real-time monitoring after digital display circuit is processed single-chip microcomputer to show more intuitively.Power circuit of the present utility model by the output voltage of generator after rectifier transformer to complete machine power supply, by generator directly for the utility model device is powered, thereby do not need other power supply units to power, reduced the cost of instrument.Therefore the utlity model has beneficial effect safe and that cost is extremely low.
Flame-out drive circuit of the present utility model adopts isolated drive circuit, has that long service life, operating temperature range are wide, the strong advantage of anti-interference ability.
Accompanying drawing explanation
Fig. 1 is theory diagram of the present utility model.
Fig. 2 is the circuit theory diagrams of the flame-out drive circuit of the utility model.
Fig. 3 is the workflow diagram of single-chip microcomputer of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
Referring to a kind of small fuel oil shown in Fig. 1 and Fig. 2, the digital instrument of gas electricity generator, comprise single-chip microcomputer 1, voltage collection circuit 2, flame-out drive circuit 3, digital display diverter circuit 4, digital display circuit 5, power circuit 6 and current collection circuit 7, this single-chip microcomputer 1 adopts that have can timing statistics, carry out data processing, send the existing single-chip microcomputer of command function, one of input end of described single-chip microcomputer 1 connects voltage collection circuit 2 by A/D mouth, voltage collection circuit 2 can adopt existing common voltage Acquisition Circuit, described voltage collection circuit 2 gathers the magnitude of voltage of generator output, output voltage sampled value after this circuit dividing potential drop, and pass to single-chip microcomputer 1 by A/D translation interface, two of the input end of single-chip microcomputer 1 connects current collection circuit 7 by A/D translation interface, current collection circuit 7 can adopt existing conventional current collection circuit, the current information that described current collection circuit 7 is exported by current sensor 11 Real-time Collection generators, and the current sampling data of collection is passed to single-chip microcomputer 1 by A/D translation interface, three of the input end of single-chip microcomputer 1 connects digital display diverter circuit 4 by I/O port, described digital display diverter circuit 4 adopts existing conventional demonstration switching key, and the demonstration of the voltage of exporting by demonstration switching key switching single-chip microcomputer 1, electric current, frequency, power, single accumulative total generating dutation is selected.
One of output terminal of single-chip microcomputer 1 is connected with the control end of flame-out drive circuit 3 by I/O interface, and described flame-out drive circuit 3 is connected with the power supply of the ignition mechanism 9 of generator 8; Described flame-out drive circuit 3 adopts isolated drive circuit, the present embodiment be take light-coupled isolation driving as example, adopt other isolation schemes can realize the object of isolation drive equally, described flame-out drive circuit 3 consists of photo coupler U2, resistance R 17, resistance R 19, resistance R 100, resistance R 21, diode D10, controllable silicon Q1, diode D4, diode D10, capacitor C 1, capacitor C 8.When generator output voltage overvoltage or when under-voltage, by this drive circuit, cut off ignition power, thereby reach flame-out object.
Shown in Figure 2, flame-out drive circuit 3 principles:
When generator output voltage is normal, the I/O mouth of single-chip microcomputer 1 is by R17 output low level, and now photo coupler ends, and between the C of U2, E, resistance is very large; Generator igniter power supply passes through D10 simultaneously, C1, D4 is to capacitor C 1 charging, due to U2 cut-off, voltage on C1 cannot arrive by U2 the trigger end of controllable silicon Q1, and controllable silicon trigger end voltage is 0V, controllable silicon cut-off, now generator igniter 9 power supplies are unaffected, and generator 9 is normally worked.
When generator output voltage is abnormal (higher or lower than single-chip microcomputer setting voltage value), the I/O mouth of single-chip microcomputer 1 is exported high level by R17, now photo coupler conducting, and between the C of U2, E, resistance is very little; C1 both end voltage is by R19, U2, R100 simultaneously, the trigger voltage that R21 dividing potential drop forms controllable silicon Q1 makes controlled silicon conducting, after controlled silicon conducting, make generator igniter power supply instantaneous short circuit, the internal-combustion engine ignition voltage of generator must be zero, and internal-combustion engine is flame-out.Generator 8 power disappear and to stop operating, generator no-output voltage now, thus protected the safety of load appliance.
Because controllable silicon touches Q1, to send out portvoltage very responsive, and it is more reliable that the existence of C8 is controlled circuit, and antijamming capability is stronger.
Two of the output terminal of single-chip microcomputer 1 is connected with digital display circuit 5 by I/O interface, digital display circuit 5 adopts existing LED nixie tube, power circuit 6 is powered to complete machine, each components and parts power supply that it is gauge internal that described power circuit 6 is exported as the internal electric source of instrument using the output voltage of generator after rectifier transformer, gives single-chip microcomputer 1, voltage collection circuit 2, flame-out drive circuit 3, digital display diverter circuit 4, digital display circuit 5 and current collection circuit 7 power supplies in this digital instrument.
Working principle of the present utility model:
Described single-chip microcomputer 1 is according to the voltage sample value of input, the virtual value that current sampling data calculates generator output voltage, the virtual value of generator output current, the power of generator output, the frequency of generator output voltage and the generating dutation of generator, information after processing is delivered to digital display module 5, by digital display module 5, shows generator output voltage (effective value), electric current (effective value), frequency, power or the single accumulative total generating dutation after calculating; The virtual value of 1 pair of generator 8 output voltage of single-chip microcomputer compares with CLV ceiling limit value and the lower limit of the virtual value setting in advance simultaneously; when detect the virtual value of generator output voltage exceed the CLV ceiling limit value that sets in advance or lower than set in advance lower limit time; single-chip microcomputer 1 is exported flame-out signal by I/O port to flame-out drive circuit 3; by flame-out drive circuit 3, close the power supply of generator 8 ignition mechanisms 9, the mandatory flame-out safety with protection consumer of generator 8 that allows.
The utility model is applicable to general AC generator, and input voltage range of the present utility model is: exchange 90-260V, 50Hz, input rated voltage: alternating current 220V, 50Hz, the power of complete machine: be less than 1W.
The present embodiment is greater than 250V and belongs to overpressure value to set, and being less than the overcurrent protection that 180V belongs to under-voltage value is example
Shown in Fig. 1 and Fig. 3, generator 8 is connected with load 10 by wire, curent change by current sensor 11 monitoring generator output ends gathers current information, then by voltage sample value, current sampling data is converted to numerical information by A/D translation interface by these analog informations and is delivered to single-chip microcomputer 1, single-chip microcomputer 1 contents processing has two-part, first portion calculates current generator voltage (effective value) by single-chip microcomputer 1, electric current (effective value), frequency, power, generating dutation, single-chip microcomputer 1 reads key-press status by I/O port through digital display diverter circuit 4, and through digital display circuit 5, to digital display, export corresponding result of calculation by I/O port,
To be single-chip microcomputer 1 compare the voltage virtual value of calculating and setting value 250V and 180V to second portion, when the voltage virtual value calculating surpasses setting value 250V, single-chip microcomputer 1 output high level is given flame-out drive circuit 3, start flame-out drive circuit 3, by flame-out drive circuit 3, close the power supply of the ignition mechanism 9 of generator 8, reach the object of protection consumer electronics, single-chip microcomputer 1 is waited for power-off deadlock simultaneously; When the voltage virtual value calculating is less than setting value 250V, the voltage virtual value calculating further compares with setting value 180V, when voltage virtual value is greater than setting value 180V, read the voltage of generator 8 outputs, single-chip microcomputer 1 reads the information of voltage that voltage collection circuit 2 gathers again; When voltage virtual value is less than setting value 180V, single-chip microcomputer 1 output high level is given flame-out drive circuit 3, starts flame-out drive circuit 3, closes the power supply of generator igniter by flame-out drive circuit 3, reaches the object of protection consumer electronics.
The utility model is on the fundamental function basis of digital instrument; the overvoltage of increase to generator output voltage; monitoring and protective function during undercompaction; when monitoring overvoltage or when under-voltage; mandatoryly stop generating by generator is flame-out; with protection consumer safety, prevent the generation of the serious accidents such as initiation fire.
Claims (4)
1. a small fuel oil, the digital instrument of gas electricity generator, it is characterized in that: comprise single-chip microcomputer (1), voltage collection circuit (2), flame-out drive circuit (3), digital display diverter circuit (4), digital display circuit (5) and power circuit (6), the input end of described single-chip microcomputer (1) connects voltage collection circuit (2) by A/D translation interface, the input end of single-chip microcomputer (1) is connected with digital display diverter circuit (4) by I/O mouth, described digital display diverter circuit (4) is for switching display parameters, the output terminal of described single-chip microcomputer (1) connects flame-out drive circuit (3) by I/O mouth, digital display circuit (5), described flame-out drive circuit (3) is connected with the power supply of generator (8) ignition mechanism (9), described power circuit (6) is powered to complete machine, described voltage collection circuit (2) is for gathering the voltage of generator output, and the voltage sample value of collection is passed to single-chip microcomputer (1) by A/D translation interface, described single-chip microcomputer (1) is according to the voltage sample value of input, calculate the virtual value of generator output voltage, statistics electric voltage frequency, single accumulative total generating dutation, information after processing is delivered to digital display circuit (5) and shows, when the virtual value of the voltage calculating surpasses or during lower than design load, output control signal starts flame-out drive circuit (3), by flame-out drive circuit (3), close the power supply of generator igniter.
2. small fuel oil according to claim 1, the digital instrument of gas electricity generator, it is characterized in that: also comprise current collection circuit (7), the input end of described single-chip microcomputer (1) is connected with current collection circuit by A/D translation interface, described current collection circuit (7) is by the current information of current sensor (11) Real-time Collection generator (8) output, and the current sampling data of collection is passed to single-chip microcomputer (1) by A/D translation interface, the current sampling data of described single-chip microcomputer (1) to input, calculate electric current virtual value, output power, by digital display circuit (5), show.
3. the digital instrument of small fuel oil according to claim 1 and 2, gas electricity generator, is characterized in that: described power circuit (6) is powered the output voltage of generator (8) after rectifier transformer to complete machine.
4. the digital instrument of small fuel oil according to claim 1 and 2, gas electricity generator, is characterized in that: described flame-out drive circuit (3) adopts isolated drive circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420382895.5U CN203962270U (en) | 2014-07-11 | 2014-07-11 | The digital instrument of a kind of small fuel oil, gas electricity generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420382895.5U CN203962270U (en) | 2014-07-11 | 2014-07-11 | The digital instrument of a kind of small fuel oil, gas electricity generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203962270U true CN203962270U (en) | 2014-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420382895.5U Withdrawn - After Issue CN203962270U (en) | 2014-07-11 | 2014-07-11 | The digital instrument of a kind of small fuel oil, gas electricity generator |
Country Status (1)
| Country | Link |
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| CN (1) | CN203962270U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104074665A (en) * | 2014-07-11 | 2014-10-01 | 重庆达誉金科技有限公司 | Digital meter of small-sized fuel/gas electric generator |
-
2014
- 2014-07-11 CN CN201420382895.5U patent/CN203962270U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104074665A (en) * | 2014-07-11 | 2014-10-01 | 重庆达誉金科技有限公司 | Digital meter of small-sized fuel/gas electric generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141126 Effective date of abandoning: 20160622 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |