CN105183018B - A kind of kettle for preventing water-level probe from corroding and control method - Google Patents
A kind of kettle for preventing water-level probe from corroding and control method Download PDFInfo
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- CN105183018B CN105183018B CN201510650367.2A CN201510650367A CN105183018B CN 105183018 B CN105183018 B CN 105183018B CN 201510650367 A CN201510650367 A CN 201510650367A CN 105183018 B CN105183018 B CN 105183018B
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- level probe
- water
- water level
- kettle body
- probe
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Abstract
The present invention provides a kind of kettle for preventing water-level probe from corroding and control methods,Including kettle body,Water-level probe and circuit board,Described water-level probe one end puts on silica gel soft rubber stopper and insulate and stretch into kettle body with Hu Bi,The other end exposes through kettle body and passes through electric wire to be connected with the circuit board in kettle body,The circuit board includes controller,The water-level probe is connected to form water-level control circuit with controller,It is characterized in that,The water-level probe includes low water level probe and high water level probe,The low water level probe is arranged close to the position of kettle body bottom,The high water level probe is arranged close to the position at the top of kettle body,Low water level probe and high water level probe are connected respectively to that the corresponding low water level AD values of controller sample pin and high water level AD values sample pin,The low water level probe and high water level probe are respectively connected with divider resistance,And pass through the divider resistance input voltage.When in use without having to worry about water shortage in pot, spilling water gets rusty and dry combustion method.
Description
Technical field
The present invention relates to a kind of water boiling device more particularly to a kind of kettle for preventing water-level probe from corroding and control methods.
Background technology
In the water-level detecting circuit of kettle, most simple and direct surely belongs to electrode type fluviograph, i.e., by the use of conductor as electrode detection
The height of water level.But its chief drawback is exactly that electrode is easily failed by galvanic corrosion.Electrode is soaked in water, flows through electrode when there is electric current
When, even electric current very little, can also electrolysis be generated to electrode.Either which kind of conductive material to make electrode with, including copper, stainless
Steel, carbon-point etc. can all make positive electrode be subject to galvanic corrosion.The degree of galvanic corrosion is directly proportional to conduction time and size of current.With technology
Continuous development, consumer constantly payes attention to its product quality, and water level detecting probe gets rusty or electricity kettle in use
There is an urgent need to improve for solution problem.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of kettle for preventing water-level probe from corroding, including kettle body, water
Position probe and circuit board, described water-level probe one end are stretched into kettle body, and the other end is through kettle body and passes through electric wire with being arranged on kettle body
On circuit board connection, the circuit board includes controller, and the water-level probe is connected that form water level control electric with controller
Road, the water-level probe include low water level probe and high water level probe, and the low water level probe is arranged close to kettle body bottom
Position, the high water level probe are arranged close to the position at the top of kettle body, and the low water level probe and high water level probe connect respectively
It is connected to the corresponding low water level AD values sampling pin of controller and high water level AD values sampling pin, the low water level probe and high water level
Probe is respectively connected with divider resistance, and passes through the divider resistance input voltage.
Further, the low water level probe and the input voltage of high water level probe access stabilization, the kettle body connect power supply
Ground.
Further, the input voltage is 5V-36V, preferably 5V.
Further, the low water level probe and high water level probe are electric each via the power supply of divider resistance access controller
Pressure pipe foot.
Further, the power supply of kettle body access controller ground pin.
Further, described water-level probe one end puts on silica gel soft rubber stopper and stretches into kettle body.
A kind of control method for the kettle for preventing water-level probe from corroding, does not work including water-level probe and works with water-level probe
Two states, when water-level probe is in off position, controller control drag down input voltage, when water-level probe is in work
When making state, stable input voltage is kept.
Further, connect the power supply.
Another kind prevents the control method of the kettle of water-level probe corrosion, does not work including water-level probe and water-level probe work
The two states of work, when water-level probe is in off position, the supply voltage pin of controller not output voltage works as water level
When popping one's head in running order, the supply voltage pin output burning voltage of controller.
Further, when water-level probe is in off position, the controller passes through supply voltage pin and power supply
Ground pin interacts to water-level probe and generates positive negative pulse stuffing.
Further, the water-level probe off position includes being powered and detect, when only existing in energization detection, the control
Pin interacts generation positive negative pulse stuffing to device processed to water-level probe by supply voltage pin and power supply.
The present invention provide it is a kind of can prevent water-level probe from getting rusty, be electrolysed the kettle of this kind of corrosiveness, using
Just do not have to worry water shortage inside pot always in the process, spilling water gets rusty and dry combustion method.Use it is more convenient, simply, safety, and
And it is more durable, improve service life.
Description of the drawings
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the schematic diagram of the water-level control circuit of the embodiment of the present invention 1；
Fig. 2 is the schematic diagram of the water-level control circuit of the embodiment of the present invention 2.
Specific embodiment
Referring to Fig. 1, the water level control electricity for a kind of kettle for preventing water-level probe from corroding in the embodiment of the present invention 1
Road, including kettle body M1, water-level probe and circuit board, described water-level probe one end puts on silica gel soft rubber stopper and insulate with Hu Bi, and stretches
Enter in kettle body M1, the other end passes through kettle body M1 and passes through electric wire and is connected with the circuit board on kettle body M1, in the circuit board
The microcontroller of model LT28S39 is selected including controller U1, controller U1.The water-level probe is connected shape with controller U1
Into water-level control circuit.The water-level probe includes low water level probe T1 and high water level probe T2, the low water level probe T1 peaces
The position of kettle body M1 bottoms is installed adjacent to, the high water level probe T2 is arranged close to the position at the top of kettle body M1.The low water
Position probe T1 and high water level probe T2 is connected respectively to the corresponding low water level AD values sampling pin H1 and high water level AD of controller U1
Value sampling pin H2.The low water level probe T1 connection divider resistances R1, the high water level probe T2 connection divider resistance R2, and
By divider resistance R1, R2 input voltage, make water body conductive using the impurity in water and have certain resistance value, make so as to divide
Water-level probe obtains voltage and works.The input voltage of the low water level probe T1 and high water level probe T2 access stabilizations, it is described
Input voltage is 5V-36V, preferably 5V.The kettle body M1 is with connecing power supply.Water-level probe is without the shape that do not work during water level detecting
State, opposite its be in working condition during water level detecting.
When water-level probe is in off position, controller U1 controls drag down input voltage, by by the power supply
It connects and realizes.When water-level probe is in running order, stable input voltage is kept.Whether work for sensed water level probe
Detection pattern pwm pulse mode detection may be employed.Original detection of energization always is changed to pwm pulse mode detection, greatly
It is big to reduce electronics transfer caused by electrolysis so as to prevent water-level probe from getting rusty, being electrolysed.
Referring to Fig. 2, the water level control electricity for a kind of kettle for preventing water-level probe from corroding in the embodiment of the present invention 2
Road, and as highly preferred embodiment of the present invention.The low water level probe T1 and high water level pop one's head in T2 each via divider resistance R1
With the supply voltage pin Test_VCC of R2 access controllers U1.The power supply of kettle body M1 access controllers U1 ground pin
Test_GND。
When water-level probe is in off position, the supply voltage pin Test_VCC of controller U1 not output voltage,
When water-level probe is in running order, the burning voltage of the supply voltage pin Test_VCC outputs 5V of controller U1.Work as water
When position probe is in off position, controller U1 pin Test_ by supply voltage pin Test_VCC and power supply
GND is interacted to water-level probe and is generated positive negative pulse stuffing.The water-level probe off position, which includes being powered, to be detected, the detection that is powered
Pwm pulse mode detection may be employed.When only existing in energization detection, the controller U1 passes through supply voltage pin Test_
VCC and power supply pin Test_GND interacted to water-level probe and generate positive negative pulse stuffing, and then offset electrolysis.
The present invention provide it is a kind of can prevent water-level probe from getting rusty, be electrolysed the kettle of this kind of corrosiveness, using
Just do not have to worry water shortage inside pot always in the process, spilling water gets rusty and dry combustion method.Use it is more convenient, simply, safety, and
And it is more durable, improve service life.
The present invention is exemplarily described above in conjunction with attached drawing, it is clear that the present invention implements and from aforesaid way
Limitation, as long as employ the inventive concept and technical scheme of the present invention progress various unsubstantialities improvement or without changing
Other occasions are directly applied to by the design of the present invention and technical solution, within protection scope of the present invention.
Claims (4)
1. a kind of control method for the kettle for preventing water-level probe from corroding, kettle body are interior equipped with water-level probe and circuit board, the water
Position probe one end is stretched into kettle body, and the other end passes through kettle body and passes through electric wire and is connected with the circuit board in kettle body, the electricity
Road plate includes controller, and the water-level probe is connected to form water-level control circuit with controller, and the water-level probe includes low
Water-level probe and high water level probe, the low water level probe are arranged close to the position of kettle body bottom, the high water level probe peace
The position being installed adjacent at the top of kettle body, which is characterized in that the low water level probe and high water level probe are connected respectively to controller
Corresponding low water level AD values sampling pin and high water level AD values sampling pin, the low water level probe and each connection of high water level probe
There is divider resistance, and pass through the divider resistance input voltage, the low water level probe and high water level probe are each via partial pressure
The supply voltage pin of resistance access controller, accesses stable input voltage, and the kettle body is with connecing power supply or access controller
Power supply ground pin；The water-level probe includes the two states that water-level probe does not work with water-level probe work, when water level is visited
When head is in off position, controller control drags down input voltage, when water-level probe is in running order, keeps stabilization
Input voltage.
2. the control method of the kettle according to claim 1 for preventing water-level probe from corroding, which is characterized in that the control
Device control, which drags down input voltage, includes not output voltage.
3. the control method of the kettle according to claim 2 for preventing water-level probe from corroding, which is characterized in that when water level is visited
When head is in off position, pin generates just the controller to water-level probe interaction by supply voltage pin and power supply
Negative pulse.
4. the control method of the kettle according to claim 3 for preventing water-level probe from corroding, which is characterized in that the water level
Off position of popping one's head in, which includes being powered, to be detected, and when only existing in energization detection, the controller passes through supply voltage pin and electricity
Source pin to water-level probe interact generate positive negative pulse stuffing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510650367.2A CN105183018B (en) | 2015-10-10 | 2015-10-10 | A kind of kettle for preventing water-level probe from corroding and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510650367.2A CN105183018B (en) | 2015-10-10 | 2015-10-10 | A kind of kettle for preventing water-level probe from corroding and control method |
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| CN105183018A CN105183018A (en) | 2015-12-23 |
| CN105183018B true CN105183018B (en) | 2018-05-25 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106235888A (en) * | 2016-09-30 | 2016-12-21 | 陈宗仁 | Condensate tank of dehumidifier and detection method |
| CN109443483B (en) * | 2018-11-19 | 2024-07-26 | 珠海格力电器股份有限公司 | Electrode protection device, liquid level detection device and household appliance |
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| JP2601075B2 (en) * | 1991-10-21 | 1997-04-16 | 株式会社日立製作所 | Analysis method and analyzer using test piece |
| CN101625167A (en) * | 2008-07-10 | 2010-01-13 | 姜维林 | Method and device for measuring water quantity and water temperature of solar water heater |
| CN101995283A (en) * | 2009-08-12 | 2011-03-30 | 中国船舶重工集团公司第七一九研究所 | Time division multiplexing multi-channel electric contact liquid level detection circuit |
| CN103676985A (en) * | 2013-11-29 | 2014-03-26 | 南昌大学 | Automatic water level control circuit of rural water tank |
| CN103913208B (en) * | 2014-04-25 | 2017-06-16 | 西安华舜测量设备有限责任公司 | External ultrasonic liquidometer and its measuring method with velocity of sound self-calibration function |
| CN104156010A (en) * | 2014-07-22 | 2014-11-19 | 广东新功电器有限公司 | Kettle water level control device, water level control method and dry-burning resistant control method |
| CN205003563U (en) * | 2015-10-10 | 2016-01-27 | 厦门越一电子科技有限公司 | Prevent kettle of water level probe corruption |
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