CN106872765A - Input voltage measurement device - Google Patents
Input voltage measurement device Download PDFInfo
- Publication number
- CN106872765A CN106872765A CN201710229383.3A CN201710229383A CN106872765A CN 106872765 A CN106872765 A CN 106872765A CN 201710229383 A CN201710229383 A CN 201710229383A CN 106872765 A CN106872765 A CN 106872765A
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- module
- input
- voltage
- detection module
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- 238000005259 measurement Methods 0.000 title claims abstract description 12
- 238000001514 detection method Methods 0.000 claims abstract description 41
- 238000001914 filtration Methods 0.000 claims abstract description 25
- 238000010438 heat treatment Methods 0.000 claims abstract description 23
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 14
- 238000013016 damping Methods 0.000 claims description 5
- 238000011897 real-time detection Methods 0.000 abstract description 2
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
- G01R19/16571—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing AC or DC current with one threshold, e.g. load current, over-current, surge current or fault current
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
- G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
- G01R15/186—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers using current transformers with a core consisting of two or more parts, e.g. clamp-on type
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Resistance Heating (AREA)
Abstract
The present invention discloses input voltage measurement device, it is provided with voltage transformer, rectification filtering module, under-voltage detection module, over-pressed detection module, controller module, drive module and heating module, real-time reception carries out under-voltage detection to the input of outside civil power and overvoltage is detected, when occurring under-voltage or over-pressed, controller module disconnects heating module by drive module, electric kitchen tools are stopped, when without occurring under-voltage or over-pressed, controller module connects heating module by drive module, electric kitchen tools are started working, real-time detection civil power is input into, and situation about being voluntarily input into according to outside civil power is connected or fault block heating module, realize the purpose of the electric kitchen tools circuit system of protection.
Description
Technical field
The present invention relates to the electric kitchen tools of daily life, and in particular to a kind of input voltage measurement applied on electric kitchen tools is filled
Put.
Background technology
Electric kitchen tools generally include electric frying pan, electric oven, electric cooker, electric wok etc..Nowadays, electric kitchen tools are widelyd popularize,
It is widely used in common people's daily life, is greatly facilitated to the common people.
When electric kitchen tools are used, by mains-supplied, power on/off is carried out to electrothermal tube, realize the control of temperature and power.In electricity
During the use of kitchen tools, may be unstable because of outside mains input voltage, the circuit system of electric kitchen tools is subjected to phase shortage, owes
The voltge surge that pressure, overpressure zone come, causes circuit system performance impacted, it is also possible to therefore adverse effect is brought to user,
Therefore, it is necessary to input voltage is detected, it is unstable in input voltage to provide the input voltage of stabilization to circuit system
When, circuit system can carry out self-protection.
The content of the invention
The present invention provides input voltage measurement device, solve it is existing be applied to that electric kitchen tools are present when outside input is unstable
It is fixed, the impacted problem of circuit system performance.
The present invention solves the above problems by the following technical programs：
Input voltage measurement device, including voltage transformer, rectification filtering module, under-voltage detection module, overvoltage detection mould
Block, controller module, drive module and heating module；
The voltage transformer receives outside civil power, the output end of the voltage transformer and the input of rectification filtering module
End is connected；The output end of the rectification filtering module is connected with the input all the way of under-voltage detection module, the rectifying and wave-filtering mould
The output end of block is connected with the input all the way of over-pressed detection module；Another road input of the under-voltage detection module receives base
Quasi- input signal, the output end of the under-voltage detection module is connected with controller module；Another road of the over-pressed detection module
Input receives reference-input signal, and the output end of the over-pressed detection module is connected with controller module；The drive module
Input be connected with controller module, the output end of the drive module is connected with the control end of heating module.
Further, the voltage transformer mainly includes coil block；The coil block includes stereoscopic triangular iron
Core and three coils being arranged in isosceles triangle distribution on the stereoscopic triangular iron core；The stereoscopic triangular iron core is three structures
The integrative-structure that identical iron core frame is spliced to form；In the center of three coils, damping resonance eliminator is provided with.
Further, the under-voltage detection module mainly includes the first operational amplifier；The reference-input signal input
To the backward end of first operational amplifier, after the outside civil power is through voltage transformer, rectification filtering module, input is extremely
The end in the same direction of the first operational amplifier.
Further, the over-pressed detection module mainly includes the second operational amplifier；The reference-input signal input
To the backward end of second operational amplifier, after the outside civil power is through voltage transformer, rectification filtering module, input is extremely
The end in the same direction of the second operational amplifier.
Further, the heating module mainly includes mechanical switch and electrothermal tube；The controller module is to driving mould
Block sends control signal, and mechanical switch is connected by drive module so that the outside civil power of electrothermal tube two ends loading, external electrical kitchen tools are opened
Beginning heating work, or, the controller module sends control signal to drive module, mechanical switch is disconnected by drive module, is made
Obtain electrothermal tube to be electrically cut off with outside city, external electrical kitchen tools stop heating work.
Compared with prior art, with following features：
1st, be provided with voltage transformer, rectification filtering module, under-voltage detection module, over-pressed detection module, controller module,
Drive module and heating module, real-time reception are input into outside civil power, and carry out under-voltage detection and overvoltage detection, under-voltage when occurring
Or during overvoltage, controller module disconnects heating module by drive module, electric kitchen tools are stopped, when without the under-voltage or mistake of appearance
During pressure, controller module connects heating module by drive module, and electric kitchen tools are started working, the input of real-time detection civil power, and from
The situation that row is input into according to outside civil power is connected or fault block heating module, realizes the purpose of the electric kitchen tools circuit system of protection；
2nd, the coil block of voltage transformer, it is in described in isosceles triangle distribution is arranged on to include stereoscopic triangular iron core and three
Coil on stereoscopic triangular iron core, the setting of which has the advantages that magnetic circuit is symmetrical, magnetic resistance is small, loss is small, positioned at three
The centre of coil sets damping resonance eliminator, moreover it is possible to possesses the function of anti-resonance, has both ensured the security of voltage transformer, protects again
The stability of card voltage transformer and electric kitchen tools circuit system.
Brief description of the drawings
Fig. 1 is structural principle block diagram of the present invention.
Specific embodiment
The invention will be further described with reference to embodiments, but the invention is not limited in these embodiments.
Input voltage measurement device, including voltage transformer, rectification filtering module, under-voltage detection module, overvoltage detection mould
Block, controller module, drive module and heating module；The voltage transformer receives outside civil power, the voltage transformer
Output end is connected with the input of rectification filtering module；The output end of the rectification filtering module is with under-voltage detection module all the way
Input is connected, and the output end of the rectification filtering module is connected with the input all the way of over-pressed detection module；The under-voltage inspection
Another road input for surveying module receives reference-input signal, output end and the controller module phase of the under-voltage detection module
Even；Another road input of the over-pressed detection module receives reference-input signal, the output end of the over-pressed detection module with
Controller module is connected；The input of the drive module is connected with controller module, the output end of the drive module with plus
The control end of thermal modules is connected.
Further, the voltage transformer mainly includes coil block；The coil block includes stereoscopic triangular iron
Core and three coils being arranged in isosceles triangle distribution on the stereoscopic triangular iron core；The stereoscopic triangular iron core is three structures
The integrative-structure that identical iron core frame is spliced to form；In the center of three coils, damping resonance eliminator is provided with.Existing voltage
Transformer, typically annular core, now carry out above-mentioned improvement with regard to its structure, make it have that magnetic circuit is symmetrical, magnetic resistance is small, be lost it is small
Advantage, is setting damping resonance eliminator, moreover it is possible to possess the function of anti-resonance, both ensure mutual induction of voltage positioned at three centres of coil
The security of device, ensures the stability of voltage transformer and electric kitchen tools circuit system again, plays the electric kitchen tools circuit system of extension
The purpose of service life.
Rectification filtering module carries out rectification, filtering to the output signal of voltage transformer, by filtered signal input extremely
In under-voltage detection module and over-pressed detection module.
The under-voltage detection module mainly includes the first operational amplifier；The reference-input signal is input into described first
The backward end of operational amplifier, after the outside civil power is through voltage transformer, rectification filtering module, input to the first computing is put
The end in the same direction of big device.The backward end of the first operational amplifier receives reference-input signal, the termination in the same direction of the first operational amplifier
Receive rectifying and wave-filtering signal, when outside civil power occur phase shortage, it is under-voltage when, the reverse terminal voltage of the first operational amplifier is less than in the same direction
Terminal voltage, the first operational amplifier exports high level to controller module, and control letter is sent to drive module from controller module
Number, cut off heating module.
The over-pressed detection module mainly includes the second operational amplifier；The reference-input signal is input into described second
The backward end of operational amplifier, after the outside civil power is through voltage transformer, rectification filtering module, input to the second computing is put
The end in the same direction of big device.The backward end of the second operational amplifier receives reference-input signal, the termination in the same direction of the second operational amplifier
Rectifying and wave-filtering signal is received, when overvoltage occurs in outside civil power, the voltage of the backward end of the second operational amplifier is more than end electricity in the same direction
Pressure, the second operational amplifier exports high level to controller module, and controller module sends control signal to drive module, cut-out
Heater circuit.
Drive module is relay, and the control end of relay is connected with controller module, controller module output high level
To Control end, then the heater circuit that the electric kitchen tools of relay cut-out are working, when the input signal stabilization of outside civil power,
Controller module sends low level signal, heater circuit work to controller module.
The heating module mainly includes mechanical switch and electrothermal tube；The controller module sends control to drive module
Signal, mechanical switch is connected by drive module so that the outside civil power of electrothermal tube two ends loading, external electrical kitchen tools begin to warm up work
Make, or, the controller module sends control signal to drive module, mechanical switch is disconnected by drive module so that electrothermal tube
It is electrically cut off with outside city, external electrical kitchen tools stop heating work.
The course of work of the invention is：
Outside civil power is input into voltage transformer, rectification filtering module, input undervoltage detection module and overvoltage respectively
Detection module carries out under-voltage detection and overvoltage is detected, when occurring under-voltage or over-pressed, controller module sends height to drive module
Level signal, the heating module of the electric kitchen tools worked by drive module cut-out；When outside civil power stabilization, do not occur scarce
Phase, it is under-voltage or over-pressed when, controller module sends low level signal to drive module, by drive module heating module, electric kitchen tools
Start working.
Claims (5)
1. input voltage measurement device, it is characterised in that：
Including voltage transformer, rectification filtering module, under-voltage detection module, over-pressed detection module, controller module, drive module
And heating module；
The voltage transformer receives outside civil power, the output end of the voltage transformer and the input phase of rectification filtering module
Even；The output end of the rectification filtering module is connected with the input all the way of under-voltage detection module, the rectification filtering module
Output end is connected with the input all the way of over-pressed detection module；It is defeated that another road input of the under-voltage detection module receives benchmark
Enter signal, the output end of the under-voltage detection module is connected with controller module；Another road input of the over-pressed detection module
End receives reference-input signal, and the output end of the over-pressed detection module is connected with controller module；The drive module it is defeated
Enter end to be connected with controller module, the output end of the drive module is connected with the control end of heating module.
2. input voltage measurement device according to claim 1, it is characterised in that：
The voltage transformer mainly includes coil block；
The coil block includes stereoscopic triangular iron core and three are arranged on the stereoscopic triangular iron core in isosceles triangle distribution
Coil；The stereoscopic triangular iron core is the integrative-structure that three structure identical iron core frames are spliced to form；In three lines
The center of circle, is provided with damping resonance eliminator.
3. input voltage measurement device according to claim 1, it is characterised in that：
The under-voltage detection module mainly includes the first operational amplifier；The reference-input signal is input into first computing
The backward end of amplifier, after the outside civil power is through voltage transformer, rectification filtering module, input to the first operational amplifier
End in the same direction.
4. input voltage measurement device according to claim 1, it is characterised in that：
The over-pressed detection module mainly includes the second operational amplifier；The reference-input signal is input into second computing
The backward end of amplifier, after the outside civil power is through voltage transformer, rectification filtering module, input to the second operational amplifier
End in the same direction.
5. input voltage measurement device according to claim 1, it is characterised in that：
The heating module mainly includes mechanical switch and electrothermal tube；The controller module sends control letter to drive module
Number, mechanical switch is connected by drive module so that the outside civil power of electrothermal tube two ends loading, external electrical kitchen tools begin to warm up work,
Or, the controller module sends control signal to drive module, mechanical switch is disconnected by drive module so that electrothermal tube with it is outer
City of portion is electrically cut off, and external electrical kitchen tools stop heating work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710229383.3A CN106872765A (en) | 2017-04-10 | 2017-04-10 | Input voltage measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710229383.3A CN106872765A (en) | 2017-04-10 | 2017-04-10 | Input voltage measurement device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106872765A true CN106872765A (en) | 2017-06-20 |
Family
ID=59161985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710229383.3A Pending CN106872765A (en) | 2017-04-10 | 2017-04-10 | Input voltage measurement device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106872765A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201021171Y (en) * | 2007-04-20 | 2008-02-13 | 季新杰 | Intelligent drinking machine for cars |
| CN203312762U (en) * | 2013-05-09 | 2013-11-27 | 杭州之江开关股份有限公司 | Three-phase overvoltage and undervoltage miniature circuit breaker with earth leakage protection |
| CN204257348U (en) * | 2014-12-22 | 2015-04-08 | 郑丽凤 | Voltage transformer |
| CN105633905A (en) * | 2014-10-27 | 2016-06-01 | 深圳市兰丁科技有限公司 | Overvoltage and under-voltage protection circuit |
| CN205789480U (en) * | 2016-06-24 | 2016-12-07 | 四川中翼机电科技有限公司 | A kind of Novel composite mutual inductor |
-
2017
- 2017-04-10 CN CN201710229383.3A patent/CN106872765A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201021171Y (en) * | 2007-04-20 | 2008-02-13 | 季新杰 | Intelligent drinking machine for cars |
| CN203312762U (en) * | 2013-05-09 | 2013-11-27 | 杭州之江开关股份有限公司 | Three-phase overvoltage and undervoltage miniature circuit breaker with earth leakage protection |
| CN105633905A (en) * | 2014-10-27 | 2016-06-01 | 深圳市兰丁科技有限公司 | Overvoltage and under-voltage protection circuit |
| CN204257348U (en) * | 2014-12-22 | 2015-04-08 | 郑丽凤 | Voltage transformer |
| CN205789480U (en) * | 2016-06-24 | 2016-12-07 | 四川中翼机电科技有限公司 | A kind of Novel composite mutual inductor |
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Application publication date: 20170620 |