CN207775581U - A kind of anhydrous detection circuit of vapour iron - Google Patents
A kind of anhydrous detection circuit of vapour iron Download PDFInfo
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- CN207775581U CN207775581U CN201820137434.XU CN201820137434U CN207775581U CN 207775581 U CN207775581 U CN 207775581U CN 201820137434 U CN201820137434 U CN 201820137434U CN 207775581 U CN207775581 U CN 207775581U
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Abstract
The utility model provides a kind of anhydrous detection circuit of vapour iron, including MCU, temperature sensor, resistance R1, resistance R2, resistance R3 and capacitance C1；Temperature comparison module is equipped in the MCU；It is equipped with anhydrous temperature threshold in the temperature comparison module and has coolant-temperature gage threshold value.The anhydrous detection circuit of vapour iron provided by the utility model; pass through the temperature comparison module of temperature sensor, resistance R1, resistance R2, resistance R3, capacitance C1, MCU and its inside; to detect the temperature change of soleplate; to detect that it is anhydrous that flatiron has; in order to implement follow-up safeguard measure; the anhydrous heating for a long time of heating bottom plate is avoided, the burnout problems of flatiron part and/or circuit are caused.
Description
Technical field
The utility model is related to the anhydrous detection circuit field of flatiron, more particularly to a kind of anhydrous detection circuit of vapour iron.
Background technology
Flatiron is divided into electric iron and vapour iron etc., and electric iron is mainly heated the iron of flatiron using electrical heating, then
By press dress material pressed it is smooth, although to smooth, the bad grasp of temperature can be pressed compared with macrofold and deeper folding line,
Temperature is too high to damage clothing, and the too low ironing effect of temperature is bad；Vapour iron be dress material is pressed by high-temperature steam it is smooth,
Due to the advantages that it does not hinder clothing, heat block, easy to operate, energy saving and time, temperature are more easy to control compared to electric iron,
Liked more and more by consumer；Appear widely in the places such as clothes brand shop, hotel, family.Vapour iron
It needs to convert the water in water receiver to steam by heating bottom plate, after the water evaporation in water receiver is complete, if heating bottom plate is still
So it is in heated condition, it will cause the internal circuit of flatiron and burning for inner body, cause security risk；Therefore in the market
Vapour iron is equipped with anhydrous detection device.
Usually anhydrous detection is to emit pulse signal using microcontroller, and pulse signal knows method for distinguishing again after water, comes
Either with or without water in detection container；Need to be arranged in flatiron larger locational space for accommodating anhydrous detection device, increasingly
It is not suitable for the requirement of current product miniaturization；And traditional water-free detection method is to identify inspection after water by pulse signal
It surveys, the impurity in water will dramatically influence the accuracy of anhydrous detection.
Utility model content
To solve the problems, such as to mention in above-mentioned background technology, the utility model provides a kind of anhydrous detection electricity of vapour iron
Road, including MCU, temperature sensor, resistance R1, resistance R2, resistance R3 and capacitance C1；Wherein：
Temperature comparison module is equipped in the MCU；It is equipped with anhydrous temperature threshold in the temperature comparison module and has water temperature
Spend threshold value；The temperature sensor detection heating baseplate temp；
The one end the resistance R1, the one end resistance R2, the one end resistance R3 and the one end capacitance C1 are connect with temperature sensor；Institute
It states the resistance R1 other ends and the resistance R3 other ends is connect with MCU input terminals；The resistance R2 other ends connect supply voltage；Institute
State capacitance C1 other ends ground connection.
Further, the MCU output ends are connected with anhydrous alarm modules and/or add water module and/or power-off modular.
Further, the anhydrous alarm modules include resistance R8 and sound reminding module.
Further, the auditory tone cues module is buzzer.
Further, the MCU is connect with power module；The power supply includes capacitance C2, resistance R4, resistance R5, resistance
R6, resistance R7, varistor TVR1, diode D1, diode D2, diode D3, capacitance E1, capacitance E2, capacitance E3, capacitance
C2, capacitance C3, inductance L1, inductance L2 and power switch PWM；
Capacitance one end is connect with the one end resistance R4 and the one end resistance R5；The resistance R5 other ends connect with the one end resistance R6
It connects；The resistance R4 other ends are connect with the one end varistor TVR1 and diode D1 anodes；The diode D1 cathodes, capacitance
E1 anodes are connect with the one end inductance L1；The inductance L1 other ends are connect with capacitance E2 anodes and power switch PWM respectively；Institute
It states power switch PWM and diode D2 cathodes and the one end inductance L2 is connected to by resistance R7 and capacitance C3 in parallel；The inductance
The L2 other ends are connect with inductance E3 anodes；Power switch PWM is also connect with diode D3 cathodes；The diode D3 and power supply electricity
Pressure connection；The capacitance C2 other ends, the resistance R6 other ends, the varistor TVR1 other ends, capacitance E1 cathodes, capacitance E2 are cloudy
Pole, diode D2 anodes, capacitance E3 cathodes are grounded.
Further, the resistance value of the resistance R2 is more than the resistance value of the resistance R3.
Further, the resistance value of the resistance R2 is 4K Ω -5K Ω；The resistance value of the resistance R3 is 90K Ω -100K Ω.
Further, the resistance value of the resistance R1 is 0.8K Ω -2K Ω；The capacitance of the capacitance C1 is 0.1 μ F-0.22 μ
F。
Further, the model KP3110-TO92 of the power switch PWM.
Further, the model UTF87008 of the MCU.
The anhydrous detection circuit of vapour iron provided by the utility model, passes through temperature sensor, resistance R1, resistance R2, electricity
The temperature comparison module for hindering R3, capacitance C1, MCU and its inside, to detect the temperature change of soleplate, to detect flatiron
Have anhydrous, in order to implement follow-up safeguard measure, avoids the anhydrous heating for a long time of heating bottom plate, cause flatiron part and/or electricity
The burnout problems on road.The anhydrous detection circuit of vapour iron provided by the utility model, the locational space occupied in flatiron are small；And it keeps away
Exempted from impurities in water influences caused by accuracy.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is
Some embodiments of the utility model, for those of ordinary skill in the art, in the premise of not making the creative labor property
Under, other drawings may also be obtained based on these drawings.
Fig. 1 is the anhydrous detection circuit schematic diagram of vapour iron provided by the utility model；
Fig. 2 is MCU connection diagrams；
Fig. 3 is power circuit schematic diagram.
Specific implementation mode
It is new below in conjunction with this practicality to keep the purpose, technical scheme and advantage of the utility model embodiment clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, the every other embodiment that those of ordinary skill in the art are obtained without creative efforts belong to
The range of the utility model protection.
In the description of the present invention, it should be noted that the similar word such as term " connection " or " connected " is not
The connection with physics or machinery is limited, but may include electrical connection, light connects etc., either directly or indirectly
's.
The utility model embodiment provides a kind of anhydrous detection circuit of vapour iron, including MCU, temperature sensor, resistance
R1, resistance R2, resistance R3 and capacitance C1；Wherein：
Temperature comparison module is equipped in the MCU；It is equipped with anhydrous temperature threshold in the temperature comparison module and has water temperature
Spend threshold value；The temperature sensor detection heating baseplate temp；
The one end the resistance R1, the one end resistance R2, the one end resistance R3 and the one end capacitance C1 are connect with temperature sensor；Institute
It states the resistance R1 other ends and the resistance R3 other ends is connect with MCU input terminals；The resistance R2 other ends connect supply voltage；Institute
State capacitance C1 other ends ground connection.
When it is implemented, as shown in Figure 1, being equipped with temperature comparison module in MCU；Equipped with no coolant-temperature gage in temperature comparison module
Threshold value and there is coolant-temperature gage threshold value；Temperature sensor is arranged on heating bottom plate or other can detect the position of its temperature, is used for
The temperature of detection heating bottom plate；The one end resistance R1, the one end resistance R2, the one end resistance R3 and the one end capacitance C1 are and temperature sensor
Connection；The resistance R1 other ends and the resistance R3 other ends are connect with MCU input terminals；The resistance R2 other ends connect supply voltage；Electricity
Hold C1 other ends ground connection；The resistance R1 other ends are the ends NTC1, and temperature signal is input to MCU by the ends NTC1.
Baseplate temp is detected to judge that anhydrous foundation is as follows by temperature sensor：
When there is water in flatiron, flatiron, which is steam shelves, can discharge steam, sole plate temperature exists in normal range (NR)
Have in coolant-temperature gage threshold range；If steam will not be gone out without water in flatiron, thus sole plate temperature will will appear it is different
Often, i.e., baseplate temp will be within the scope of anhydrous temperature threshold, you can detects to have in flatiron anhydrous；The utility model passes through
MCU, temperature sensor, resistance R1, resistance R2, resistance R3 and capacitance C1 collectively form the anhydrous detection module of temperature-, realize logical
Cross detection baseplate temp has anhydrous purpose to monitor in flatiron；
To ensure that normal anhydrous temperature detection, the utility model detect open loop state by resistance R2 and resistance R3；
When circuit normal use, NTC2 is high level, and the resistance value of resistance R3 is the resistance value of temperature sensor；When open circuit, NTC2 is cut
It is changed to input, the resistance value of resistance R2 is the resistance value of temperature sensor, and by the partial pressure of resistance R2 and resistance R3, NTC1 output valves are not
Together；By by resistance value of the resistance value setting more than resistance R3 of resistance R2, making the voltage value bigger on resistance R2, microcontroller being made more to hold
Easily detection, avoids erroneous judgement problem.
The anhydrous detection circuit of vapour iron that the utility model embodiment provides, passes through temperature sensor, resistance R1, resistance
R2, resistance R3, capacitance C1, MCU and its inside temperature comparison module, to detect the temperature change of soleplate, to detect
Going out flatiron has anhydrous, in order to implement follow-up safeguard measure, avoids the anhydrous heating for a long time of heating bottom plate, causes flatiron part
And/or the burnout problems of circuit.The anhydrous detection circuit of vapour iron provided by the utility model occupies the locational space in flatiron
It is small；And it avoids impurities in water and is influenced caused by accuracy.
Preferably, the MCU output ends are connected with anhydrous alarm modules and/or add water module and/or power-off modular.
Preferably, the anhydrous alarm modules include resistance R8 and sound reminding module.
Preferably, the auditory tone cues module is buzzer.
Preferably, the MCU is connect with power module；The power supply include capacitance C2, resistance R4, resistance R5, resistance R6,
Resistance R7, varistor TVR1, diode D1, diode D2, diode D3, capacitance E1, capacitance E2, capacitance E3, capacitance C2, electricity
Hold C3, inductance L1, inductance L2 and power switch PWM；
Specifically, as shown in figure 3, capacitance one end is connect with the one end resistance R4 and the one end resistance R5；The resistance R5 is another
End is connect with the one end resistance R6；The resistance R4 other ends are connect with the one end varistor TVR1 and diode D1 anodes；It is described
Diode D1 cathodes, capacitance E1 anodes are connect with the one end inductance L1；The inductance L1 other ends respectively with capacitance E2 anodes and
The ends Dra im of power switch PWM connect；The ends CS of the power switch PWM pass through the one end resistance R7；Power switch PWM's
Vdd terminal, the one end capacitance C3 are connect with diode D3 cathodes；The resistance R7 other ends, the capacitance C3 other ends, diode D2 cathodes are equal
It is connect with the one end inductance L2；The inductance L2 other ends are connect with inductance E3 anodes；；The diode D3 is connect with+5V voltages；
The capacitance C2 other ends, the resistance R6 other ends, the varistor TVR1 other ends, capacitance E1 cathodes, capacitance E2 cathodes, diode
D2 anodes, capacitance E3 cathodes are grounded；The connecting node of capacitance C2 and resistance R5 is also associated with fuse F1.
The parameter of above-mentioned capacitance C1 is 0.1 μ F/275VAC；The parameter of capacitance C3 is 0.47 μ F/50V X5R0805；Resistance
R4 is the miniaturization resistance of 10 Ω/2W；The parameter of resistance R5 and resistance R6 are 470K Ω 1,206 5%；The parameter of resistance R7 is
1.5R 1,206 5%；The parameter of varistor TVR1 is 07D471；Diode D1 and diode D3 is A7 type triodes；Two
The model ES1J of pole pipe D2；The parameter of capacitance E1 and capacitance E2 are 2.2 μ F/400V；The parameter of capacitance E3 is 0.1 μ F
0805+80%-20%；The model 1mH-0510 of inductance L1；The I-shaped inductance of model 1mH- of inductance L2.
To ensure that the anhydrous detection circuit of vapour iron provided by the utility model detects the normal operation of work, existing power supply
Circuit cannot be met the requirements, power circuit provided by the utility model, can be according to the anhydrous detection circuit of vapour iron
Actual conditions provide stable operating current voltage, ensure the normal work of circuit.
Preferably, the resistance value of the resistance R2 is more than the resistance value of the resistance R3.
Preferably, the resistance value of the resistance R2 is 4K Ω -5K Ω；The resistance value of the resistance R3 is 90K Ω -100K Ω.
Preferably, the resistance value of the resistance R1 is 0.8K Ω -2K Ω；The capacitance of the capacitance C1 is 0.1 μ F-0.22 μ F.
Preferably, the model KP3110-TO92 of the power switch PWM.
Preferably, the model UTF87008 of the MCU.
When it is implemented, as shown in Figure 1 and Figure 2, the model UTF87008 of MCU, the 5th pin is connected by resistance R8
Auditory tone cues module；Its 20th pin is supply pin, connects the VCC output ends of power circuit；Its 17th pin connects with resistance R3
It connects；Its 16th pin is connect with resistance R1.The utility model embodiment realizes the temperature of anhydrous detection by UTF87008 types MCU
Degree compares and data processing.
Although herein it is more used such as MCU, temperature sensor, resistance, capacitance, power switch PWM, inductance,
The terms such as varistor, diode, but it does not preclude the possibility of using other terms.The use of these items is only for more
Easily describe and explain the essence of the utility model；It is new with this practicality to be construed as any one of the additional limitations all
Type spirit is disagreed.
Finally it should be noted that：The above various embodiments is only to illustrate the technical solution of the utility model, rather than limits it
System；Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should
Understand：It still can be with technical scheme described in the above embodiments is modified, either to which part or whole
Technical characteristic carries out equivalent replacement；And these modifications or replacements, this practicality that it does not separate the essence of the corresponding technical solution are new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of anhydrous detection circuit of vapour iron, which is characterized in that including MCU, temperature sensor, resistance R1, resistance R2, electricity
Hinder R3 and capacitance C1；Wherein：
Temperature comparison module is equipped in the MCU；It is equipped with anhydrous temperature threshold in the temperature comparison module and has coolant-temperature gage threshold
Value；The temperature sensor detection heating baseplate temp；
The one end the resistance R1, the one end resistance R2, the one end resistance R3 and the one end capacitance C1 are connect with temperature sensor；The electricity
The resistance R1 other ends and the resistance R3 other ends are connect with MCU input terminals；The resistance R2 other ends connect supply voltage；The electricity
Hold C1 other ends ground connection.
2. the anhydrous detection circuit of vapour iron according to claim 1, it is characterised in that：The MCU output ends are connected with
Anhydrous alarm modules and/or plus water module and/or power-off modular.
3. the anhydrous detection circuit of vapour iron according to claim 2, it is characterised in that：The anhydrous alarm modules include
Resistance R8 and sound reminding module.
4. the anhydrous detection circuit of vapour iron according to claim 3, it is characterised in that：The auditory tone cues module is bee
Ring device.
5. the anhydrous detection circuit of vapour iron according to claim 1, it is characterised in that：The MCU connects with power module
It connects；The power supply includes capacitance C2, resistance R4, resistance R5, resistance R6, resistance R7, varistor TVR1, diode D1, two poles
Pipe D2, diode D3, capacitance E1, capacitance E2, capacitance E3, capacitance C2, capacitance C3, inductance L1, inductance L2 and power switch PWM；
Capacitance one end is connect with the one end resistance R4 and the one end resistance R5；The resistance R5 other ends are connect with the one end resistance R6；Institute
The resistance R4 other ends are stated to connect with the one end varistor TVR1 and diode D1 anodes；The diode D1 cathodes, capacitance E1 sun
Extremely it is connect with the one end inductance L1；The inductance L1 other ends are connect with capacitance E2 anodes and power switch PWM respectively；The work(
Rate switch PWM is connected to diode D2 cathodes and the one end inductance L2 by resistance R7 and capacitance C3 in parallel；The inductance L2 is another
One end is connect with inductance E3 anodes；Power switch PWM is also connect with diode D3 cathodes；The diode D3 connects with supply voltage
It connects；The capacitance C2 other ends, the resistance R6 other ends, the varistor TVR1 other ends, capacitance E1 cathodes, capacitance E2 cathodes, two
Pole pipe D2 anodes, capacitance E3 cathodes are grounded.
6. the anhydrous detection circuit of vapour iron according to claim 1, it is characterised in that：The resistance value of the resistance R2 is more than
The resistance value of the resistance R3.
7. the anhydrous detection circuit of vapour iron according to claim 6, it is characterised in that：The resistance value of the resistance R2 is 4K
Ω-5KΩ；The resistance value of the resistance R3 is 90K Ω -100K Ω.
8. the anhydrous detection circuit of vapour iron according to claim 7, it is characterised in that：The resistance value of the resistance R1 is
0.8KΩ-2KΩ；The capacitance of the capacitance C1 is 0.1 μ F-0.22 μ F.
9. the anhydrous detection circuit of vapour iron according to claim 5, it is characterised in that：The type of the power switch PWM
Number be KP3110-TO92.
10. according to the anhydrous detection circuit of claim 1-9 any one of them vapour irons, it is characterised in that：The type of the MCU
Number be UTF87008.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820137434.XU CN207775581U (en) | 2018-01-26 | 2018-01-26 | A kind of anhydrous detection circuit of vapour iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820137434.XU CN207775581U (en) | 2018-01-26 | 2018-01-26 | A kind of anhydrous detection circuit of vapour iron |
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| Publication Number | Publication Date |
|---|---|
| CN207775581U true CN207775581U (en) | 2018-08-28 |
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ID=63211706
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| CN201820137434.XU Active CN207775581U (en) | 2018-01-26 | 2018-01-26 | A kind of anhydrous detection circuit of vapour iron |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109660134A (en) * | 2018-12-21 | 2019-04-19 | 佛山市汉立电子科技有限公司 | Power circuit and input limiting resistance determine method |
-
2018
- 2018-01-26 CN CN201820137434.XU patent/CN207775581U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109660134A (en) * | 2018-12-21 | 2019-04-19 | 佛山市汉立电子科技有限公司 | Power circuit and input limiting resistance determine method |
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| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A water free detection circuit for steam iron Effective date of registration: 20211105 Granted publication date: 20180828 Pledgee: Xiamen Huli District Financing Guarantee Co., Ltd Pledgor: Xiamen Xinyang Technology Co., Ltd Registration number: Y2021980011992 |