CN103968914A - Water level detecting mounting method of wireless electric kettle - Google Patents
Water level detecting mounting method of wireless electric kettle Download PDFInfo
- Publication number
- CN103968914A CN103968914A CN201310051586.XA CN201310051586A CN103968914A CN 103968914 A CN103968914 A CN 103968914A CN 201310051586 A CN201310051586 A CN 201310051586A CN 103968914 A CN103968914 A CN 103968914A
- Authority
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- China
- Prior art keywords
- kettle
- water level
- level detecting
- wiring port
- water
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 19
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000000741 silica gel Substances 0.000 claims abstract description 12
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 12
- 239000011810 insulating material Substances 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 239000002184 metal Substances 0.000 description 5
- 241001122767 Theaceae Species 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 235000012206 bottled water Nutrition 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Cookers (AREA)
Abstract
A water level detecting mounting method of a wireless electric kettle is characterized in that a water level electrode wrapping by silica gel or other insulating material is mounted at the bottom or the lateral side of a kettle body, an NTC loop and the water level electrode shares one wiring port of a connector, a power supply grounding wire and a PCB water level detecting inlet wire shares one wiring port of the connector, and the water level electrode wire wiring port is connected with the grounding wire wiring port through a resistor. A dry heating preventing device is added to the wireless electric kettle, and a technical premise is provided for automatic water adding.
Description
Technical field
The present invention relates to the improvement of hot-water bottle, particularly a kind of improvement that is applied to the water level detecting installation method of cordless electrothermal kettle.
Background technology
The cordless electrothermal kettle connecting by connector has at present been the practical electrical equipment of heating up water, making tea, because it is with low cost and power lead is separated with kettle body, easy to use being loved by the people.Base comprises power lead and pcb board control circuit, and five general core connectors of market can only offer the connection of kettle body bottom heat-generating pipe both positive and negative polarity, ground wire and two end lines of NTC temperature sensor.The structure cordless electrothermal kettle that is limited to connector connection does not temporarily have easy sensed water level method.Its burning prevention function can only be controlled by KSD temperature controller or NTC temperature sensor.201110165035.7 what announce is a kind ofly in kettle the inside, a cylindricality pcb board to be installed and to be carried out sensed water level height, not easy cleaning of this device kettle is installed, pcb board material through corrosion also brings pollution to water quality, a plurality of sensing points that arrange must increase Wiring port, are not suitable for the separate connector of cordless electrothermal kettle.
In practical application, add for convenience water, the making tea machine that cordless electrothermal kettle and water pumper are combined into, owing to there is no condensate tank of dehumidifier, can only manual control add water.
Summary of the invention
The technical matters that the present invention solves is to provide a kind of water level detecting installation method of cordless electrothermal kettle.
For solving technique scheme, the present invention adopts: a kind of electric kettle, comprise handle, and kettle body, at the bottom of kettle, heat-generating pipe, NTC temperature sensor, silica gel, level electrode, connector.Described level electrode is wrapped up by silica gel or other insulating materials.At the bottom of described heat-generating pipe is weldingly fixed on kettle, at the bottom of kettle, with the riveted joint of kettle body, kettle body outside is fixed with handle.Kettle bottom hole fix N TC temperature sensor outside heat-generating pipe.
As improving one of installation method: the fixing level electrode of kettle bottom hole outside heat-generating pipe.Silica gel makes the insulation of level electrode and metal pot body, and level electrode one end is exposed in the water of kettle body inner side the other end and exposes to outer side joint end line at the bottom of kettle.Silica gel exceed at the bottom of kettle inside 5-20mm.Because the globule is adhered character, during lower than 5mm, at the bottom of kettle, the globule can make to be adhered at the bottom of level electrode and metal pot accurately sensed water level and can make NTC temperature sensor surface during lower than 5mm and affect the accuracy of detected temperatures at water level of conduction.Higher than 20mm, affect in kettle succinct, unfavorable cleaning.
As improving two of installation method: to determine kettle body lateral location by handle center's vertical section, detect as required fixedly level electrode of position perforation that low-water level or high water stage hide at kettle body side handle.Kettle body lateral opening hole be positioned at 5mm at the bottom of kettle above or lower than Hu Kou the height to distance 1/4th at the bottom of kettle, water level during lower than 5mm NTC temperature sensor surface and affect the accuracy of detected temperatures, water level higher than Hu Kou to distance four at the bottom of kettle/make boiling water overflow Hu Kou for a moment.Silica gel makes level electrode and the insulation of metal pot body, and level electrode one end is exposed to the other end in the water inside kettle body and exposes to the outer side joint end line of kettle body.Utilize handle to cover in silica gel and end line is fixed on kettle body, play effect attractive in appearance.
As improved circuit installation method:
Five electrode ports mode of connections of upper connector: at the bottom of kettle, anodal (11) connectivity port of heat-generating pipe 1., negative pole (12) connectivity port 2., kettle substrate shell ground wire (13) connectivity port 3., 4., NTC loop (15) and level electrode line (16) common port are 5. in NTC inlet wire (14) connectivity port.5. 3. the port of upper connector be connected by resistance (17) with port.
Five electrode ports mode of connections of lower connector: pcb board positive source connectivity port 1., pcb board power cathode connectivity port 2., 3., 4. NTC detects inlet wire connectivity port for power ground line and PCB water level detecting inlet wire common port, and NTC detection loop and water level detecting loop common port are 5..
According to test data, learn that potable water has electric conductivity, the resistance of different quality can reach several kilo-ohms to hundreds of kilo-ohm, level electrode be arranged on kettle when water-in-kettle face exceeds level electrode at the bottom of and metal pot ground wire form a loop, are used for detecting low-water level in kettle.The level electrode and the metal pot ground wire that are arranged on kettle body side form a loop, can be used for detecting low-water level or high water stage in kettle.Water-in-kettle face is considered as open circuit during lower than level electrode, and resistance is infinitely great.
Although cause water-in-kettle position to exceed level electrode and situation that PCB water level detecting is still opened a way for fear of upper and lower connector electrode loose contact, the port of upper connector 3. and port 5. to the resistance (17) that connects an above resistance of megaohm between the circuit at the bottom of kettle, as long as PCB detects this resistance value loop, just judge that connector coupling is normal.When water-in-kettle position exceeds level electrode depending on the water in kettle be conductive resistance and its resistance be less than be connected to port 3. with port resistance (17) 5., because 3. the port with upper connector is to be connected in parallel with port resistance (17) 5., the IC that is input to pcb board according to the resistance variations data in water level detecting loop carries out calculation process, realizes the detection to water-in-kettle position.When lower than lowest water level, stop heating and add water to kettle, or stop adding water and heat to kettle when arriving peak level.
Water level silica gel of the present invention comprises and is singly not limited to silica gel, can be also other insulating material.
The present invention is applied on the making tea machine that cordless electrothermal kettle and water pumper are combined into, and achieves automatic watering function; Or be applied in the common five core connectors in market increase by one heavily dry combustion method protection be not all main points of the present invention, be not described in detail.
The invention has the beneficial effects as follows compared with the prior art, to cordless electrothermal kettle, increase a kind of anti-dry burning device that passes through to detect lowest water level, safety effect is obvious; The making tea machine that cordless electrothermal kettle and water pumper are combined into provides a kind of technology prerequisite of automatic watering.Simple in structure, easy for installation.
Accompanying drawing explanation
Fig. 1 is kettle sectional view.
Fig. 2 is connector port figure.
Fig. 3 is level electrode height map at the bottom of kettle.
Fig. 4 is kettle body side installation site figure.
Handle (1), kettle body (2), at the bottom of kettle (3), heat-generating pipe (4), NTC temperature sensor (5), level electrode (6), silica gel (7), upper connector (8), lower connector (9), bottom (10), heat-generating pipe anodal (11), heat-generating pipe negative pole (12), ground wire (13), NTC inlet wire (14), NTC loop (15), level electrode line (16), resistance (17).
Embodiment
When PCB water level detecting represents upper connector (8) and lower connector (9) not coupling or loose contact less than the resistance of resistance (17); Water-in-kettle face represents lack of water while resistance (17) resistance only being detected lower than level electrode (6) PCB water level detecting, connector is normally coupling; When water-in-kettle face exceeds level electrode (6), level electrode (6) and ground wire (13) form a loop, and PCB water level detecting represents there is water in kettle to the resistance changing, and connector is normally coupled.
Claims (8)
1. the water level detecting installation method of a cordless electrothermal kettle, it is characterized in that being arranged on bottom of water kettle or kettle body side by the level electrode of silica gel or other insulating materials parcel, a Wiring port of NTC loop and level electrode line common connector, a Wiring port of power ground line and PCB water level detecting inlet wire common connector, the level electrode line Wiring port of upper connector has resistance to be connected with ground wire Wiring port.
2. the water level detecting installation method of a kind of cordless electrothermal kettle according to claim 1, it is characterized in that being arranged on level electrode silica gel height at the bottom of kettle at 5mm between 20mm.
3. the water level detecting installation method of a kind of cordless electrothermal kettle according to claim 1, the level electrode that it is characterized in that being arranged on kettle body side be positioned at 5mm at the bottom of kettle above or lower than Hu Kou the height to distance 1/4th at the bottom of kettle.
4. the water level detecting installation method of a kind of cordless electrothermal kettle according to claim 1, is characterized in that the level electrode that is arranged on kettle body side is positioned at the inner side that handle hides.
5. the water level detecting installation method of a kind of cordless electrothermal kettle according to claim 1, is characterized in that the level electrode line Wiring port of connector is connected by resistance with ground wire Wiring port.
6. the water level detecting installation method of a kind of cordless electrothermal kettle according to claim 1, is characterized in that a Wiring port of NTC loop and level electrode line common connector.
7. the water level detecting installation method of a kind of cordless electrothermal kettle according to claim 1, is characterized in that a Wiring port of power ground line and PCB water level detecting inlet wire common connector.
8. the water level detecting installation method of a kind of cordless electrothermal kettle according to claim 1, what it is characterized in that electric kettle installs is five core connectors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310051586.XA CN103968914B (en) | 2013-01-26 | 2013-01-26 | A kind of water level detecting installation method of cordless electrothermal kettle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310051586.XA CN103968914B (en) | 2013-01-26 | 2013-01-26 | A kind of water level detecting installation method of cordless electrothermal kettle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103968914A true CN103968914A (en) | 2014-08-06 |
| CN103968914B CN103968914B (en) | 2018-02-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310051586.XA Expired - Fee Related CN103968914B (en) | 2013-01-26 | 2013-01-26 | A kind of water level detecting installation method of cordless electrothermal kettle |
Country Status (1)
| Country | Link |
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| CN (1) | CN103968914B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109510009A (en) * | 2018-10-31 | 2019-03-22 | 李婉冰 | A kind of multifrnction connector |
| CN110558835A (en) * | 2019-08-26 | 2019-12-13 | 陈毅强 | Capacitive liquid level detection structure and electric kettle thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08219080A (en) * | 1995-02-17 | 1996-08-27 | Shin Meiwa Ind Co Ltd | Submerged pump |
| CN101556178A (en) * | 2009-05-18 | 2009-10-14 | 何竞 | Method for dynamic detection of water level and device thereof |
| CN201468991U (en) * | 2009-08-24 | 2010-05-19 | 俞烨晨 | Anhydrous power-off hot water cup |
| CN201468990U (en) * | 2009-08-24 | 2010-05-19 | 董嘉颖 | Electric kettle without dry-burning phenomenon |
| CN101846539A (en) * | 2010-04-09 | 2010-09-29 | 林家彬 | Dual-purpose sensor and electric heating kettle with the same |
| CN201782576U (en) * | 2010-08-06 | 2011-04-06 | 九阳股份有限公司 | Dual-effect dry heating prevention electric water kettle |
| CN102508500A (en) * | 2011-11-02 | 2012-06-20 | 文应刚 | Water level control circuit used for heating purified water and heating container |
| CN202408472U (en) * | 2011-12-07 | 2012-09-05 | 张永超 | Control circuit of electric kettle |
| CN202567790U (en) * | 2012-05-03 | 2012-12-05 | 江南大学 | Intelligent electric kettle capable of automatically detecting water levels |
| CN202693085U (en) * | 2012-05-29 | 2013-01-23 | 中山市远通电子电器科技有限公司 | Electric heating water kettle with water level detection device |
-
2013
- 2013-01-26 CN CN201310051586.XA patent/CN103968914B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08219080A (en) * | 1995-02-17 | 1996-08-27 | Shin Meiwa Ind Co Ltd | Submerged pump |
| CN101556178A (en) * | 2009-05-18 | 2009-10-14 | 何竞 | Method for dynamic detection of water level and device thereof |
| CN201468991U (en) * | 2009-08-24 | 2010-05-19 | 俞烨晨 | Anhydrous power-off hot water cup |
| CN201468990U (en) * | 2009-08-24 | 2010-05-19 | 董嘉颖 | Electric kettle without dry-burning phenomenon |
| CN101846539A (en) * | 2010-04-09 | 2010-09-29 | 林家彬 | Dual-purpose sensor and electric heating kettle with the same |
| CN201782576U (en) * | 2010-08-06 | 2011-04-06 | 九阳股份有限公司 | Dual-effect dry heating prevention electric water kettle |
| CN102508500A (en) * | 2011-11-02 | 2012-06-20 | 文应刚 | Water level control circuit used for heating purified water and heating container |
| CN202408472U (en) * | 2011-12-07 | 2012-09-05 | 张永超 | Control circuit of electric kettle |
| CN202567790U (en) * | 2012-05-03 | 2012-12-05 | 江南大学 | Intelligent electric kettle capable of automatically detecting water levels |
| CN202693085U (en) * | 2012-05-29 | 2013-01-23 | 中山市远通电子电器科技有限公司 | Electric heating water kettle with water level detection device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109510009A (en) * | 2018-10-31 | 2019-03-22 | 李婉冰 | A kind of multifrnction connector |
| CN110558835A (en) * | 2019-08-26 | 2019-12-13 | 陈毅强 | Capacitive liquid level detection structure and electric kettle thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103968914B (en) | 2018-02-23 |
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Granted publication date: 20180223 |