CN106289449A - Condenser type water level and flow detection device and kettle, detection method - Google Patents
Condenser type water level and flow detection device and kettle, detection method Download PDFInfo
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Abstract
The present invention relates to tea set technical field, more particularly, to a kind of condenser type water level and flow detection device and kettle, detection method.Condenser type water level and flow of the present invention detection kettle includes kettle body and the base being electrically connected to each other by bonder, it is provided with current-carrying part in described kettle body, the inner bottom surface of kettle body is provided with a surface and is coated with the conducting post of insulant, described current-carrying part and described surface are coated with the conducting post of insulant and collectively form capacitor arrangement, described base is provided with control circuit, and conducting post is electrically connected with control circuit by bonder.Condenser type water level and flow of the present invention detection kettle arranges a surface in kettle body and is coated with the conducting post of insulant, and directly utilize kettle kettle body cooperation composition one capacitor arrangement itself, realize the real-time detection of water level and flow based on capacitance principle with this, kettle is added water, detecting the water level of kettle accurately and easily and control, reliability is high.
Description
Technical field
The present invention relates to tea set technical field, more particularly, to a kind of condenser type water level and flow detection device and kettle, detection method.
Background technology
Existing tea set is typically made up of base and kettle body, and wherein kettle body is provided with heat-generating units, and base is provided with control circuit, and heat-generating units is connected with control circuit by bonder, and kettle body is additionally provided with control switch and temperature sensor.During use, only kettle body need to be placed on base, just the control circuit of base and kettle body can be connected, press kettle body control switch can make heat-generating units work thus the liquid in kettle body is heated, and the temperature sensor in kettle body can detect the temperature of water in kettle body, thus power supply is automatically cut off when water seethes with excitement, safe and convenient to use.
But, the water level of existing tea set shows, in kettle body, only denote peak level and lowest water level, or be at most only utilized in kettle body inlaying Transparent Parts or in kettle body internal rational height instruction, judged the height of water level otherwise by the knowledge of artificial naked eyes for user, user likely causes the water level in kettle body undesirable because of carelessness, therefore the tea set on existing market the most in use breaks down or causes certain potential safety hazard.
At present, the water level detecting having part kettle is that the electric conductivity utilizing water carries out electric pole type water level detecting, and electrode directly contacts with water, makes electrode produce electric current thus judges water level.But, this method can make by the electric current of electrode different because of the difference of water quality, thus produces different impacts, and such as, because pure water resistance is big, the electric current thereby through electrode is the least；And the resistance of daily tap water is smaller, the electric current thereby through electrode can be bigger.Therefore, the equal water yield can produce different electric currents because of the difference of water quality, and the electric current of generation even can differ greatly, therefore the mistake of detection judgement can occur.And, this electric pole type water level detecting can only be single-point detection, as detected maximum, and can not detect the water level and flow in kettle in real time.
Summary of the invention
It is contemplated that solve above-mentioned technical problem the most to a certain extent.
The primary and foremost purpose of the present invention is to provide a kind of condenser type water level and flow detection device, and detection is real-time and accurate.
A further object of the present invention is to provide the condenser type water level and flow detection kettle of a kind of simple in construction, one surface is set in kettle body and is coated with the conducting post of insulant, and the current-carrying part arranged in directly utilizing kettle kettle body coordinates composition one capacitor arrangement, realize the real-time detection of water level and flow based on capacitance principle with this, reliability is high.
Third object of the present invention is to provide the water level and flow detection method of the condenser type water level and flow detection kettle of a kind of simplicity.
For solving above-mentioned technical problem, the technical solution used in the present invention is:
A kind of condenser type water level and flow detection device is provided, including capacitor arrangement and for detecting the control circuit of described capacitor arrangement capacitance, described capacitor arrangement includes the container being provided with current-carrying part and the conducting post being arranged in described container, described conducting post surface is coated with insulant, conducting post and described container mutually insulated, the current-carrying part of conducting post and described container is electrically connected with described control circuit by bonder respectively.
The present invention also provides for a kind of condenser type water level and flow used such as above-mentioned condenser type water level and flow detection device and detects kettle, it includes kettle body and the base being electrically connected to each other by bonder, it is provided with current-carrying part in described kettle body, the inner bottom surface of kettle body is provided with a surface and is coated with the conducting post of insulant, described current-carrying part and described surface are coated with the conducting post of insulant and collectively form capacitor arrangement, described base is provided with control circuit, and conducting post is electrically connected with control circuit by bonder.
Alternatively, described current-carrying part is inner bottom surface or the internal face of kettle body.When kettle body is the employing non electrically conductive material making such as glass pot own, current-carrying part can be set at the inner bottom surface of kettle body；When the material that kettle body is the employing such as rustless steel kettle conduction itself makes, can directly internal face or inner bottom surface by kettle body as current-carrying part.
Further, described kettle body is provided with maximum water level and lowest water level line, and the peak of the insulant that described conducting post surface covers is close to described maximum water level or concordant with described maximum water level.
Preferably, described conducting post is perpendicular to the inner bottom surface setting of described kettle body.
As improvement, described conducting post upwardly extends a naked section electric conductor, the non-covering insulating material in surface of described naked section electric conductor in the one end away from described kettle body inner bottom surface, and naked section electric conductor is arranged higher than the maximum water level in kettle body.
The present invention furthermore provides a kind of water level and flow detection method detecting kettle such as above-mentioned condenser type water level and flow, the current-carrying part of its kettle body and conducting post mutually insulated, two electrodes of the two composition capacitor, and detection method comprises the following steps:
S1. when in the kettle body of kettle anhydrous time, the medium between current-carrying part and the conducting post of described kettle body is insulant and air, and now, the capacitance that control circuit records is lowest water level water yield capacitance；
S2. when adding water in the kettle body to kettle, medium between current-carrying part and the conducting post of described kettle body is water, and DC current therebetween is zero, now, control circuit records capacitance and increases and judge water level and flow signal, is converted to water level and flow value by single-chip microcomputer in control circuit；
S3. when the water in kettle kettle body is filled it up with, medium between current-carrying part and the conducting post of described kettle body is water, therebetween DC current is zero, now, control circuit judges peak level water yield signal, is converted to peak level water yield value by single-chip microcomputer in control circuit and sends stopping and adding water signal.
As the further improved method to above-mentioned improved structure, when described conducting post upwardly extends a naked section electric conductor in the one end away from described kettle body inner bottom surface, this detection method is further comprising the steps of:
During the maximum water level arranged in S4. filling it up with when the water in kettle kettle body and exceeding kettle body, water in kettle body and described naked section conductive body contact, DC current between current-carrying part and the naked section electric conductor of described kettle body is not zero, now, control circuit judges the water level and flow signal in kettle body beyond maximum water level, is converted to corresponding water level and flow value by single-chip microcomputer in control circuit and sends stopping and adding water signal.
Compared with prior art, the invention has the beneficial effects as follows:
Condenser type water level and flow of the present invention detects device and realizes the detection of water level and flow by using capacitor arrangement to design based on capacitance principle, and detection is real-time and accurate.
The simple in construction of condenser type water level and flow of the present invention detection kettle, one surface is set in kettle body and is coated with the conducting post of insulant, and directly utilize kettle kettle body cooperation composition one capacitor arrangement itself, realize the real-time detection of water level and flow based on capacitance principle with this, kettle is added water, detecting the water level of kettle accurately and easily and control, reliability is high.
The water level and flow detection method of condenser type water level and flow of the present invention detection kettle is easy, and detection is real-time and accurate.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment two condenser type water level and flow detection kettle.
Fig. 2 is the circuit diagram of embodiment two condenser type water level and flow detection kettle.
Fig. 3 is another basic circuit diagram of embodiment two condenser type water level and flow detection kettle.
Fig. 4 is the structural representation of embodiment three condenser type water level and flow detection kettle.
Fig. 5 is the circuit diagram of embodiment three condenser type water level and flow detection kettle.
Fig. 6 is the first basic circuit diagram of embodiment three condenser type water level and flow detection kettle.
Fig. 7 is the second basic circuit diagram of embodiment three condenser type water level and flow detection kettle.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention is further illustrated.Wherein, being merely cited for property of accompanying drawing illustrates, expression is only schematic diagram, rather than pictorial diagram, it is impossible to it is interpreted as the restriction to this patent；It will be understood by those skilled in the art that some known features and explanation thereof may will be understood by omission in accompanying drawing.
In describing the invention, it will be appreciated that, if have term " on ", D score, "left", "right", " interior ", the orientation of the instruction such as " outward " or position relationship be for based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore term the being merely cited for property explanation of position relationship described in accompanying drawing, it is impossible to be interpreted as the restriction to this patent.
Further, above-mentioned part term is in addition to can be used to indicate that orientation or position relationship, it is also possible to be used for representing other implications, such as term " on " also be likely used in some cases representing certain relations of dependence or annexation.For those of ordinary skills, these terms concrete meaning in the present invention can be understood as the case may be.
In addition, in the present invention, unless otherwise prescribed or limit, it should be noted that, if there being the term such as " installation ", " connection ", " being connected " to be interpreted broadly, for example, it may be mechanically connected or electrically connect or gas circuit connection, it is also possible to be the connection of two element internals, can be to be directly connected to, can also be to be indirectly connected to by intermediary, for the ordinary skill in the art, the concrete meaning of above-mentioned term can be understood as the case may be.
Embodiment one
The embodiment of condenser type water level and flow of the present invention detection device, it includes capacitor arrangement and the control circuit for sensing capacitor structure capacitive amount, capacitor arrangement includes the container being provided with current-carrying part and the conducting post being arranged in container, conducting post surface is coated with insulant, conducting post and container mutually insulated, the current-carrying part of conducting post and container is electrically connected with control circuit by bonder respectively.
Between current-carrying part and the conducting post of container because conducting post surface is coated with insulant mutually insulated, the two constitutes two electrodes of capacitor.When the water level that gradually adds water in container rises, water logging there is not the height of conducting post to rise the most therewith, then the capacitance between container current-carrying part and conducting post the most correspondingly rises, capacitance by control circuit sensing capacitor, the numerical value one_to_one corresponding of capacitance and water level and flow, thus the height of water level and the size of the water yield in obtaining container.
Embodiment two
It is the first embodiment of condenser type water level and flow of the present invention detection kettle as shown in Figure 1 to Figure 3.As shown in Figure 1, this kettle includes kettle body 20 and the base 10 being electrically connected to each other by bonder 30, it is provided with current-carrying part in kettle body 20, the inner bottom surface 21 of kettle body 20 is provided with a surface and is coated with the conducting post 40 of insulant 41, current-carrying part and surface are coated with the conducting post 40 of insulant 41 and collectively form capacitor arrangement, base 10 is provided with control circuit 11, and conducting post 40 is electrically connected with control circuit 11 by bonder 30.
In the present embodiment, kettle body 20 is that the non electrically conductive materials of employing such as glass pot own make, therefore the inner bottom surface 21 of kettle body 20 is set to current-carrying part, conducting post 40 is perpendicular to the inner bottom surface 21 of kettle body 20 and arranges, then between inner bottom surface 21 and the conducting post 40 of kettle body 20 because conducting post 40 surface is coated with insulant 41 mutually insulated, the two constitutes two electrodes of capacitor.Meanwhile, kettle body 20 is provided with maximum water level H and lowest water level line (not shown), and the peak of the insulant 41 that conducting post 40 surface covers is close to maximum water level H or concordant with maximum water level H.
When not adding water in kettle, medium between two electrodes is insulant 41 and air, when gradually adding water in kettle, when water logging there is not conducting post 40, water instead of air as medium, and the dielectric constant of water is far longer than air, therefore when the water level in kettle is gradually increasing, water logging there is not the height of conducting post 40 to rise the most therewith, then the capacitance between inner bottom surface 21 and the conducting post 40 of kettle body 20 the most correspondingly rises, simultaneously because control circuit is electrically connected with two electrodes respectively, then can detect this capacitance by control circuit, capacitance and the numerical value one_to_one corresponding of water level and flow, thus the height of water level and the size of the water yield in obtaining kettle.
And the peak of the insulant 41 covered when conducting post 40 surface is close to maximum water level H or concordant with maximum water level H, add water when capacitance should control kettle stopping with the numerical value of the peak level water yield to control circuit time corresponding.
It is the basic circuit diagram of this kettle as shown in Figure 2 and Figure 3, UINFor high frequency voltage, the current-carrying part B being connected in kettle, conducting post 40(A) it is connected to current sampling resistor R, the earth terminal being then connected to high frequency voltage forms loop.When the water level in kettle raises, current-carrying part B in kettle and conducting post 40(A) capacitance of capacitor that constitutes increases, then also being increased by the high frequency electric in loop, the voltage on sample resistance R just increases, by obtaining output voltage U after rectifying and wave-filteringOUTIncrease, UOUTHeight and the size of the water yield of water level in kettle it is converted to by single-chip microcomputer.
Embodiment three
It is the second embodiment of condenser type water level and flow of the present invention detection kettle as shown in Figures 4 to 7.Unlike embodiment two, kettle body 20 is that the material of the employing such as rustless steel kettle conduction itself makes, thus can directly internal face or inner bottom surface by kettle body 20 as current-carrying part.It is understood that in view of the safety used, even if by kettle body 20 directly as current-carrying part, protection structure also can be arranged during actual design to avoid user to cause danger when using.
The present embodiment is also as the improvement to embodiment two, as shown in Figure 4, the present embodiment upwardly extends a naked section electric conductor 42 at conducting post 40 away from one end of the inner bottom surface 21 of kettle body 20, the non-covering insulating material in surface of naked section electric conductor 42, naked section electric conductor 42 is arranged higher than the maximum water level H in kettle body 20, then when water level is higher than the maximum water level H of kettle body 20, the water in kettle body 20 touches this naked section electric conductor 42, is i.e. converted into the water level and flow in electric pole type detection kettle.When kettle is converted to the detection of electric pole type water level and flow, then the current-carrying part in kettle body 20 and naked section electric conductor 42 then constitute the electrode at two ends, now need the position of maximum water level H in clear and definite kettle body 20.
I.e. the present embodiment be condenser type combine with electric pole type detection kettle in water level and flow.As Fig. 5, Fig. 6 and Fig. 7 show the basic circuit diagram of this kettle, UINFor high frequency voltage or DC voltage, the current-carrying part B being connected in kettle.When water level is at maximum water level H or following, when high frequency voltage UINWhen being converted to DC voltage, due to the stopping direct current effect of capacitor, the at this moment pressure drop on sample resistance R is zero；When water level is equal to the boundary line being arranged on the insulant 41 just above conducting post 40 and naked section electric conductor 42 higher than maximum water level H(maximum water level H) time, when high frequency voltage UINWhen being converted to direct current, owing to water contacts with naked section electric conductor 42, DC voltage is conducted to naked section electric conductor 42(A1 by water from the current-carrying part B of kettle body), the at this moment pressure drop on sample resistance R is not zero.Then, changed in turn with DC voltage by the high frequency voltage of single-chip microcomputer, just can measure at measurement by capacitance water level and flow and electric pole type and change between two kinds of structural approach of water level and flow.
The present embodiment had both had the advantage of the detection in real time of measurement by capacitance water level and flow, can also accurately measure peak level in kettle simultaneously.It is understood that alarm module can also be arranged in the control circuit of kettle, when the water level in kettle is higher than maximum water level, alarm module response action, remind the user that safety operation.
Embodiment four
The embodiment of the water level and flow detection method of condenser type water level and flow of the present invention detection kettle, the current-carrying part of its kettle body and conducting post mutually insulated, two electrodes of the two composition capacitor, detection method comprises the following steps:
S1. when in the kettle body of kettle anhydrous time, the medium between current-carrying part and the conducting post of kettle body is insulant and air, and now, the capacitance that control circuit records is lowest water level water yield capacitance；
S2. when adding water in the kettle body to kettle, medium between current-carrying part and the conducting post of kettle body is water, and DC current therebetween is zero, now, control circuit records capacitance and increases and judge water level and flow signal, is converted to water level and flow value by single-chip microcomputer in control circuit；
S3. when the water in kettle kettle body is filled it up with, medium between current-carrying part and the conducting post of kettle body is water, therebetween DC current is zero, now, control circuit judges peak level water yield signal, is converted to peak level water yield value by single-chip microcomputer in control circuit and sends stopping and adding water signal.
For the kettle structure of embodiment three, when conducting post upwardly extends a naked section electric conductor in the one end away from kettle body inner bottom surface, the present embodiment detection method is further comprising the steps of:
During the maximum water level arranged in S4. filling it up with when the water in kettle kettle body and exceeding kettle body, water in kettle body and naked section conductive body contact, DC current between current-carrying part and the naked section electric conductor of kettle body is not zero, now, control circuit judges the water level and flow signal in kettle body beyond maximum water level, is converted to corresponding water level and flow value by single-chip microcomputer in control circuit and sends stopping and adding water signal.
The water level and flow detection method that the present embodiment condenser type water level and flow detects kettle is easy, and reliability is high, and detection is real-time and accurate.
Obviously, the above embodiment of the present invention is only for clearly demonstrating example of the present invention, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also cannot all of embodiment be given exhaustive.All any amendment, equivalent and improvement etc. made within the spirit and principles in the present invention, within should be included in the protection domain of the claims in the present invention.
Claims (8)
1. a condenser type water level and flow detection device, it is characterized in that, including capacitor arrangement and for detecting the control circuit of described capacitor arrangement capacitance, described capacitor arrangement includes the container being provided with current-carrying part and the conducting post being arranged in described container, described conducting post surface is coated with insulant, conducting post and described container mutually insulated, the current-carrying part of conducting post and described container is electrically connected with described control circuit by bonder respectively.
2. the condenser type water level and flow detection kettle using condenser type water level and flow as claimed in claim 1 detection device, including the kettle body being electrically connected to each other by bonder and base, it is characterized in that, it is provided with current-carrying part in described kettle body, the inner bottom surface of kettle body is provided with a surface and is coated with the conducting post of insulant, described current-carrying part and described surface are coated with the conducting post of insulant and collectively form capacitor arrangement, described base is provided with control circuit, and conducting post is electrically connected with control circuit by bonder.
Condenser type water level and flow the most according to claim 2 detection kettle, it is characterised in that described current-carrying part is inner bottom surface or the internal face of kettle body.
Condenser type water level and flow the most according to claim 3 detection kettle, it is characterized in that, described kettle body is provided with maximum water level and lowest water level line, and the peak of the insulant that described conducting post surface covers is close to described maximum water level or concordant with described maximum water level.
Condenser type water level and flow the most according to claim 4 detection kettle, it is characterised in that described conducting post is perpendicular to the inner bottom surface of described kettle body and arranges.
Condenser type water level and flow the most according to claim 3 detection kettle, it is characterized in that, described conducting post upwardly extends a naked section electric conductor in the one end away from described kettle body inner bottom surface, the non-covering insulating material in surface of described naked section electric conductor, naked section electric conductor is arranged higher than the maximum water level in kettle body.
7. the water level and flow detection method of condenser type water level and flow detection kettle as described in any one of claim 2 to 6, it is characterized in that, the current-carrying part of kettle body and conducting post mutually insulated, two electrodes of the two composition capacitor, detection method comprises the following steps:
S1. when in the kettle body of kettle anhydrous time, the medium between current-carrying part and the conducting post of described kettle body is insulant and air, and now, the capacitance that control circuit records is lowest water level water yield capacitance；
S2. when adding water in the kettle body to kettle, medium between current-carrying part and the conducting post of described kettle body is water, and DC current therebetween is zero, now, control circuit records capacitance and increases and judge water level and flow signal, is converted to water level and flow value by single-chip microcomputer in control circuit；
S3. when the water in kettle kettle body is filled it up with, medium between current-carrying part and the conducting post of described kettle body is water, therebetween DC current is zero, now, control circuit judges peak level water yield signal, is converted to peak level water yield value by single-chip microcomputer in control circuit and sends stopping and adding water signal.
Water level and flow detection method the most according to claim 7, it is characterised in that when described conducting post upwardly extends a naked section electric conductor in the one end away from described kettle body inner bottom surface, this detection method is further comprising the steps of:
During the maximum water level arranged in S4. filling it up with when the water in kettle kettle body and exceeding kettle body, water in kettle body and described naked section conductive body contact, DC current between current-carrying part and the naked section electric conductor of described kettle body is not zero, now, control circuit judges the water level and flow signal in kettle body beyond maximum water level, is converted to corresponding water level and flow value by single-chip microcomputer in control circuit and sends stopping and adding water signal.
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| CN201510318203.XA CN106289449B (en) | 2015-06-11 | 2015-06-11 | Capacitance type water level and water amount detection device, water boiling kettle and detection method |
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| CN201510318203.XA CN106289449B (en) | 2015-06-11 | 2015-06-11 | Capacitance type water level and water amount detection device, water boiling kettle and detection method |
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| CN106774008A (en) * | 2017-01-20 | 2017-05-31 | 何文东 | A kind of level testing methods of electric kettle |
| CN106681420B (en) * | 2017-01-20 | 2018-05-22 | 何文东 | A kind of impedance protecting method of electric kettle |
| CN108451360A (en) * | 2017-02-21 | 2018-08-28 | 广东美的生活电器制造有限公司 | Health-promotion kettle |
| CN108451360B (en) * | 2017-02-21 | 2023-10-27 | 广东美的生活电器制造有限公司 | Health preserving kettle |
| CN107569105A (en) * | 2017-10-18 | 2018-01-12 | 浙江绍兴苏泊尔生活电器有限公司 | Heating kettle and dry burning prevention detection method |
| CN108836110A (en) * | 2018-08-18 | 2018-11-20 | 吴联凯 | A kind of steam generator and its control method based on temperature measuring device |
| CN109141577A (en) * | 2018-09-27 | 2019-01-04 | 上海海尔众智坊创客空间管理有限公司 | Water-level detecting device, detection method and dryer |
| CN109506737A (en) * | 2018-09-30 | 2019-03-22 | 珠海格力电器股份有限公司 | A kind of level measuring method, device and equipment, liquid level detection circuit |
| CN110960086A (en) * | 2020-01-15 | 2020-04-07 | 广东新功电器有限公司 | Temperature sensor with high-low water level probe and kettle with temperature sensor |
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