CN204087008U - A kind of kettle level control device - Google Patents
A kind of kettle level control device Download PDFInfo
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- CN204087008U CN204087008U CN201420407575.0U CN201420407575U CN204087008U CN 204087008 U CN204087008 U CN 204087008U CN 201420407575 U CN201420407575 U CN 201420407575U CN 204087008 U CN204087008 U CN 204087008U
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- kettle
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- water pump
- level control
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Abstract
The utility model proposes a kind of kettle level control device, comprise: controller, converter, water pump, the reference electrode being located at kettle intracavity bottom, reference electrode and be located at the potential electrode that maximum stage place is preset on kettle inner chamber top, each described electrode is electrically connected described converter respectively, described controller is electrically connected described water pump and described converter respectively, and described water pump is by filler pipe and described kettle inner space.By such scheme, will reference probe, reference probe and measuring probe be set in kettle, by resistance between measuring basis electrode and reference electrode respectively, resistance comparing between reference electrode and potential electrode, thus determine the height of liquid in kettle.
Description
Technical field
The utility model relates to fluid device field, refers to a kind of kettle level control device especially.
Background technology
Kettle is as the container of holding liquid, and through the development of several thousand, now having developed can the electric kettle of Automatic-heating automatic watering.Electric kettle, because of its conveniently characteristic, receives liking of consumers in general.But along with the development of science and technology, how to add on electric kettle can the device of controlling water level, has become industry to need the problem of solution badly.
Existing water-level control apparatus, most employing float type water level control device realizes, namely float is set in kettle and circuit is set at predetermined altitude, when water level raises arrival predetermined altitude, float also arrives predetermined altitude by buoyancy, circuit ON, the work thus stopping adds water of short circuit water pump; When water level reduces, circuit disconnects, and water pump thus restart adds water., although structure is simple to operation, there is following problem in this mode: 1. mechanical float mechanism works for a long time under the effect of colding and heat succeed each other, and is easy to damage; 2. float mechanism is immersed in boiling water for a long time, fragile and polluted water; 3. float accurately cannot show height of water level.
Based on this, there is a kind of water-level control apparatus of people's utility model, namely bottom kettle, a probe is set respectively with predetermined height, utilizes the resistance of two probe measurement liquid to carry out sensed water level height.Although this mode is comparatively accurate, if the resistivity of liquid own changes, be just difficult to realize monitoring water level accurately.
Chinese utility model patent publication No. CN1396440A discloses a kind of level sensor for washing machine bucket, comprise reference electrode and potential electrode, reference electrode is utilized to measure the reference value of water level detecting, potential electrode measures detected value, by the difference of reference value and detected value, microprocessor is utilized to calculate accurate water level.Although this mode can eliminate error substantially, because its potential electrode length is longer, manufacturing cost is very high.And the level sensor of washing machine also cannot directly be indiscriminately imitated on electric kettle by those skilled in the art, traces it to its cause, be in temperature constant state in washing machine bucket, and cold and heat succeed each other in electric kettle, this very easily causes the damage of potential electrode.
The anti-dry burning device of prior art be mostly utilize pressure transducer to measure water in kettle whether in the hole in.If kettle placed foreign material, cause the quality of kettle to increase, then probably cause danger.A kind of kettle level control device of the present embodiment also possesses burning prevention function, comprises the following steps:
T1: described controller 1 controls described heat-generating disc 8 and starts;
T2: described reference electrode 7 and described reference electrode 6 detect the resistance of its liquid therebetween, be set to the first resistance, and the first resistance signal recorded is issued controller 1;
T3: if described first resistance is infinitely great, then jump procedure T4, if described first resistance value is real number, then jump procedure T2;
T4: described controller 1 controls described heat-generating disc 8 to be stopped, terminating.
Above step, without the need to separately establishing device, only utilizes each assembly of the present utility model can reach the effect of anti-dry, low cost of manufacture, meets the needs of energy-saving and emission-reduction.
Utility model content
The utility model proposes a kind of water-level control apparatus, in order to solve the problem.
The technical solution of the utility model is achieved in that
A kind of kettle level control device, comprise: controller, converter, water pump, the reference electrode being located at kettle intracavity bottom, reference electrode and be located at the potential electrode that maximum stage place is preset on kettle inner chamber top, each described electrode is electrically connected described converter respectively, described controller is electrically connected described water pump and described converter respectively, and described water pump is by filler pipe and described kettle inner space.
Further, each described electrode is enclosed with insulating gum cover respectively, each described electrode is plugged on described kettle inside surface by described insulating gum cover.
Further, each described electrode surface is coated with coating.
Further, be provided with heat-generating disc bottom described kettle, described heat-generating disc is electrically connected described controller.
The beneficial effects of the utility model are: pass through such scheme, will reference probe, reference probe and measuring probe be set in kettle, by resistance between measuring basis electrode and reference electrode respectively, resistance comparing between reference electrode and potential electrode, thus determine the height of liquid in kettle;
Compared to the monitoring of traditional float type water level, there is failure rate is low, feature that degree of accuracy is high; And compared to existing resistivity probe water level detecting, because having taken into account the calibration measurement of the resistivity of liquid own, thus the error that can not occur to cause because of liquid resistivity change produces; Compared to the level sensor that Chinese utility model patent publication No. CN1396440A discloses, two electrodes are divided into three, greatly reduce electrode length, thus considerably reduce manufacturing cost, and because of electrode little, also little with environmental liquids surface of contact, thus reduce the generation of failure rate.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the planar structure schematic diagram of a kind of kettle level control device of the utility model embodiment 1.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment 1:
The embodiment 1 of a kind of kettle level control device of the utility model shown in Figure 1, comprising: controller 1, converter 2, water pump 3, reference electrode 7, reference electrode 6 and potential electrode 5.Reference electrode 7 and reference electrode 6 are located at kettle 9 intracavity bottom respectively.Potential electrode 5 is located at kettle 9 inner chamber top and is preset maximum stage place.Each described electrode is electrically connected respectively for converting analogue signals to the converter 2 of digital signal, and described converter 2 is AD converter 2.Described controller 1 is MCU microprocessor, is electrically connected described water pump 3 and described converter 2 respectively, and described water pump 3 is by filler pipe 4 and described kettle inner space.
As the further optimization to the present embodiment; each described electrode is enclosed with respectively the insulating gum cover (diagram is not pointed out) for the protection of each electrode, each described electrode is plugged on described kettle 9 inside surface by described insulating gum cover (diagram is not pointed out).
As the further optimization to the present embodiment, each described electrode surface is coated with coating.Preferably, described coating adopts the comparatively inactive noble metals of character such as gold or platinum to make, and prevents electrode to be subject to corrosion and damage, also improves the sensitivity of detection simultaneously.
As the further optimization to the present embodiment, be provided with heat-generating disc 8 bottom described kettle 9, described heat-generating disc 8 is electrically connected described controller 1.So, then heat-generating disc 8 startup, stop also controlled device 1 control.
The present embodiment in working order under, comprise the following steps:
S1: described controller 1 controls described water pump 3 and starts;
S2: described reference electrode 7 and described reference electrode 6 detect the resistance of its liquid therebetween, be set to the first resistance, and the first resistance signal recorded is issued controller 1;
S3: described reference electrode 7 and described potential electrode 5 detect the resistance of its liquid therebetween, be set to the second resistance, and the second resistance signal recorded is issued described controller 1;
S4: described controller 1 compares the size of the first resistance and the second resistance, if the first resistance is greater than the second resistance, then jump procedure S1:, if the first resistance approximates the second resistance, then jump procedure S5;
S5: controller 1 controls described water pump 3 and quits work, terminates.
As the further optimization to the present embodiment, in described step (4), when described second resistance arrives 95% of described first resistance value, jump procedure (5).When the second resistance arrives 95% of the first resistance, controller 1 controls water pump 3 and quits work, and preventing water pump 3 from connecing may exist delay phenomenon to the signal received, thus the phenomenon avoiding water to overflow occurs.In other embodiments; when second resistance arrives 90% or 100% of the first resistance; the controlled device 1 of water pump 3 controls to stop, and those skilled in the art are determined by the type kind of water pump 3 used and controller 1, and such change still falls within protection domain of the present utility model.
Pass through such scheme, will reference probe, reference probe and measuring probe be set in kettle, by resistance between measuring basis electrode 7 and reference electrode 6 respectively, resistance comparing between reference electrode 7 and potential electrode 5, thus determine the height of liquid in kettle 9;
Compared to the monitoring of traditional float type water level, there is failure rate is low, feature that degree of accuracy is high; And compared to existing resistivity probe water level detecting, because having taken into account the calibration measurement of the resistivity of liquid own, thus the error that can not occur to cause because of liquid resistivity change produces.
Compared to the level sensor that Chinese utility model patent publication No. CN1396440A discloses, two electrodes are divided into three, greatly reduce electrode length, thus considerably reduce manufacturing cost, and because of electrode little, also little with environmental liquids surface of contact, thus reduce the generation of failure rate.And the level sensor that Chinese utility model patent publication No. CN1396440A discloses, be utilize the area of electrode slice and liquid comes into contact to determine to calculate liquid resistance, degree of accuracy is lower.
Embodiment 2:
In the present embodiment, be different from embodiment 1: reference electrode 7 is for transponder pulse, and reference electrode 6 and potential electrode 5 are then for received pulse, and preferably, reference electrode 6 and potential electrode 5 adopt capacitive transducer.And sent to by the pulse signal received controller 1 to compare pulse waveform, thus judge whether water level meets predetermined water level.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. a kettle level control device, it is characterized in that, comprise: controller, converter, water pump, the reference electrode being located at kettle intracavity bottom, reference electrode and be located at the potential electrode that maximum stage place is preset on kettle inner chamber top, each described electrode is electrically connected described converter respectively, described controller is electrically connected described water pump and described converter respectively, and described water pump is by filler pipe and described kettle inner space.
2. a kind of kettle level control device according to claim 1, it is characterized in that: each described electrode is enclosed with insulating gum cover respectively, each described electrode is plugged on described kettle inside surface by described insulating gum cover.
3. a kind of kettle level control device according to claim 1, is characterized in that: each described electrode surface is coated with coating.
4. a kind of kettle level control device according to claim 1, it is characterized in that: be provided with heat-generating disc bottom described kettle, described heat-generating disc is electrically connected described controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420407575.0U CN204087008U (en) | 2014-07-22 | 2014-07-22 | A kind of kettle level control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420407575.0U CN204087008U (en) | 2014-07-22 | 2014-07-22 | A kind of kettle level control device |
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| Publication Number | Publication Date |
|---|---|
| CN204087008U true CN204087008U (en) | 2015-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420407575.0U Active CN204087008U (en) | 2014-07-22 | 2014-07-22 | A kind of kettle level control device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107661009A (en) * | 2017-10-18 | 2018-02-06 | 珠海格力电器股份有限公司 | Drinking equipment |
| CN108030391A (en) * | 2018-01-20 | 2018-05-15 | 黄明聪 | A kind of multiple spot detects health-promotion kettle |
-
2014
- 2014-07-22 CN CN201420407575.0U patent/CN204087008U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107661009A (en) * | 2017-10-18 | 2018-02-06 | 珠海格力电器股份有限公司 | Drinking equipment |
| CN108030391A (en) * | 2018-01-20 | 2018-05-15 | 黄明聪 | A kind of multiple spot detects health-promotion kettle |
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| GR01 | Patent grant |