CN103836800A - Electric water heater and control method thereof - Google Patents
Electric water heater and control method thereof Download PDFInfo
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- CN103836800A CN103836800A CN201210472397.5A CN201210472397A CN103836800A CN 103836800 A CN103836800 A CN 103836800A CN 201210472397 A CN201210472397 A CN 201210472397A CN 103836800 A CN103836800 A CN 103836800A
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- water
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Abstract
The invention discloses a control method of an electric water heater. The method comprises the following steps that 1) water temperatures in different height positions in a water tank of the electric water heater are detected; 2) the average value Tad of the water temperatures is compared with the N preset temperatures of T1, T2...Tn and the hot water amount in the water tank is determined according to a comparison result, wherein N is an integer equal to or larger than two, i is an integer equal to or larger than one and smaller than N, and Ti<Ti+1; 3) the hot water amount is displayed. According to the control method of the electric water heater, the accuracy of a detection result can be improved. The structure is simple, use is convenient, the hot water amount can be checked in real time, the electric water heater is convenient to use, and the performance of the electric water heater is improved. In addition, the invention provides the electric water heater.
Description
Technical field
The present invention relates to kitchen guarding's technical field of electric appliances, the electric heater that particularly a kind of control method of electric heater and employing the method are controlled.
Background technology
Existing Water tank for electrical water heater is provided with multiple temperature sensors, and multiple temperature sensors are for measuring the water temperature of differing heights position in water tank.In controller, be preset with a temperature value, preset temperature value and the temperature value of the peak detecting are compared.If preset temperature value is more than or equal to peak temperature value, hot water quantity display function is 0%, if preset temperature value is less than the temperature value of peak, other temperature preset temperature value and temperature sensor being detected compares, and determines the hot water amount in water tank according to comparative result.Finally shown the hot water amount of electric heater by display.
Because, water tank is not in the time that heating discharges water, the temperature value at two places that water tank inner height is more or less the same is also more or less the same, and according to the result of the multiple temperature sensors of traditional employing and a setting value comparison and actual result, there is any discrepancy.The hot water amount's that employing conventional method records display structure is inaccurate, and user, using before hot water, is difficult to learn actual amount of water and the water temperature of storage in water tank, brings inconvenience in use.
Summary of the invention
The present invention one of is intended to solve the problems of the technologies described above at least to a certain extent or at least provides a kind of useful business to select.For this reason, one object of the present invention is to propose a kind of control method of electric heater of hot water quantity display function that can be fast and accurately.
Another object of the present invention is to propose a kind of electric heater that adopts the method to control.
According to the control method of the electric heater of the embodiment of the present invention, said method comprising the steps of: the multiple water temperatures that 1) detect the interior differing heights of the water tank position of described electric heater; 2) by the mean value T of described multiple water temperatures
adwith N preset temperature T
1, T
2..., T
ncompare and determine the hot water amount in described water tank according to comparative result, wherein N is more than or equal to 2 integer, and i is more than or equal to 1 and be less than the integer of N, T
i<T
i+1; 3) show described hot water amount.
According to the control method of the electric heater of the embodiment of the present invention, detect the temperature value of differing heights position in electric heater, the mean value of this temperature can be thought the mean temperature in electric heater.Then judge hot water amount according to the comparative result of this temperature and N preset temperature.Adopt temperature value-taking mean value process, reduced the accidental error of temperature detection, improve accuracy rate.Meanwhile, adopt N preset temperature to judge the hot water amount in electric heater, can improve the precision of testing result and can not increase electrical part and increase cost.Simple in structure, easy to use, can real time inspection hot water amount, to use, improve the performance of electric heater.
In addition, the control method of electric heater according to the above embodiment of the present invention, can also have following additional technical characterictic:
In addition, according to one embodiment of present invention, if T
ad<T
1, determine that described hot water amount is 0%; If T
ad>=T
n, determine that described hot water amount is 100%; If T
i≤ T
ad< T
i+1, determine that described hot water amount is (i/n) × 100%.
According to one embodiment of present invention, first by T
adwith T
1relatively, if T
ad>=T
1, by T
adwith T
nrelatively, if T
ad<T
n, by T
adorder and T
2, T
3..., T
n-1compare.
Advantageously, described preset temperature is 10, and described step 1) comprises three temperature at bottom, middle part and the top detected respectively in described water tank.
Further, a described N preset temperature comprises first group of N preset temperature T
1', T
2' ..., T
n' and second group of N preset temperature T
1", T
2' ' ..., T
n", described control method also comprises whether the water detecting in described water tank is used; If the water in described water tank is used, by T
adwith described first group of N preset temperature T
1', T
2' ..., T
n' compare, if the water in described water tank is not used, by T
adwith described second group of N preset temperature T
1", T
2' ' ..., T
n" compare.
According to the electric heater of the embodiment of the present invention, comprising: water tank, heater block, multiple temperature sensor, controller and display.Specifically, described water tank is provided with water inlet pipe and outlet pipe; Described heater block is located in described water tank; Described multiple temperature sensor is located on described water tank, for detecting respectively the water temperature of differing heights position in described water tank; Described controller is connected with described multiple temperature sensors respectively, for the mean value T of multiple water temperatures that described multiple temperature sensors are detected
adwith N preset temperature T
1, T
2..., T
ncompare and determine the hot water amount in described water tank according to comparative result, wherein N is more than or equal to 2 integer, and i is more than or equal to 1 and be less than the integer of N, T
i<T
i+1; Described display is connected with described controller, for showing described hot water amount.
According to the electric heater of the embodiment of the present invention, adopt multiple temperature sensors to detect the temperature value of differing heights position in electric heater, and judge hot water amount according to the comparative result of the mean value of the multiple temperature that detect and N preset temperature.Adopt this electric heater, the temperature-averaging value in power taking water heater, has reduced thermometric accidental error, improves thermometric accuracy rate.Meanwhile, adopt N preset temperature to judge the hot water amount in electric heater, can improve the precision of testing result and can not increase electrical part and increase cost.Simple in structure, easy to use, can real time inspection hot water amount, to use, improve the performance of electric heater.
According to one embodiment of present invention, described controller is at T
ad<T
1time determine described hot water amount be 0%, at T
ad>=T
ntime determine that described hot water amount is 100% and at T
i≤ T
ad< T
i+1time determine that described hot water amount is for (i/n) × 100%.
Advantageously, described controller is first by Tad and T
1relatively, then at T
ad>=T
1time by T
adwith T
nrelatively, finally at T
ad<T
ntime by T
adorder and T
2, T
3..., T
n-1compare.
In addition, described sensor is three and is respectively used to detect the temperature at bottom, middle part and top in described water tank, and described preset temperature is 10.
Advantageously, described electric heater also comprises water flow sensor, and described water flow sensor is located at described water inlet pipe or described outlet pipe at least one, for detection of whether using the water in described water tank; A wherein said N preset temperature comprises first group of N preset temperature T
1', T
2' ..., T
n' and second group of N preset temperature T
1", T
2" ..., T
n"; Described in wherein in the time detecting that water in described water tank is being used, controller is by T
adwith described first group of N preset temperature T
1', T
2' ..., T
n' compare, and described in the time detecting that water in described water tank is not used controller by T
adwith described second group of N preset temperature T
1", T
2" ..., T
n" compare.
Additional aspect of the present invention and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Brief description of the drawings
Above-mentioned and/or additional aspect of the present invention and advantage accompanying drawing below combination is understood becoming the description of embodiment obviously and easily, wherein:
Fig. 1 is the flow chart of the control method of the electric heater of one embodiment of the present of invention;
Fig. 2 is the flow chart of the control method of the electric heater of another embodiment of the present invention;
Fig. 3 is the flow chart of the control method of the electric heater of an embodiment more of the present invention; With
Fig. 4 is the schematic diagram of the electric heater of one embodiment of the present of invention.
Wherein, water tank 10, water inlet pipe 11, outlet pipe 12, heater block 20, temperature sensor 30, water flow sensor 40, the first heating tube 21, the second heating tube 22, the first temperature sensor 31, the second temperature sensor 32, three-temperature sensor 33.
Detailed description of the invention
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Be exemplary below by the embodiment being described with reference to the drawings, be intended to for explaining the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", orientation or the position relationship of instructions such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of device or the element of instruction or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as limitation of the present invention.
In addition, term " first ", " second " be only for describing object, and can not be interpreted as instruction or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the invention, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the terms such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be mechanical connection, can be also electrical connection; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can understand as the case may be above-mentioned term concrete meaning in the present invention.
In the present invention, unless otherwise clearly defined and limited, First Characteristic Second Characteristic it " on " or D score can comprise that the first and second features directly contact, also can comprise that the first and second features are not directly contacts but by the other feature contact between them.And, First Characteristic Second Characteristic " on ", " top " and " above " comprise First Characteristic directly over Second Characteristic and oblique upper, or only represent that First Characteristic level height is higher than Second Characteristic.First Characteristic Second Characteristic " under ", " below " and " below " comprise First Characteristic under Second Characteristic and tiltedly, or only represent that First Characteristic level height is less than Second Characteristic.
Storage-type electric water heater is to re-use after the water in water tank is heated to insulation.Use for the convenience of the user, need to show the hot water amount of storage in water tank.In traditional electrical water heater, water tank is provided with multiple temperature sensors, and multiple temperature sensors are for measuring the water temperature of differing heights position in water tank.In controller, be preset with temperature value, preset temperature value and the temperature value of the peak detecting are compared.If preset temperature value is more than or equal to peak temperature value, hot water quantity display function is 0%, if preset temperature value is less than the temperature value of peak, other temperature preset temperature value and temperature sensor being detected compares, and determines the hot water amount in water tank according to comparative result.Finally shown the hot water amount of electric heater by display.Because, water tank is not in the time that heating discharges water, the temperature value at two places that water tank inner height is more or less the same is also more or less the same, and according to the result of the multiple temperature sensors of traditional employing and a setting value comparison and actual result, there is any discrepancy.The hot water amount's that employing conventional method records display structure is inaccurate, and user, using before hot water, is difficult to learn actual amount of water and the water temperature of storage in water tank, brings inconvenience in use.The object of the invention is to propose one simple in structure, and testing result electric heater and control method thereof accurately, this electric heater can also the hot water amount in the time being used and do not used detect respectively electric heater.
Describe according to the control method of the electric heater of the embodiment of the present invention downwards with reference to the accompanying drawings.
Fig. 1 shows the control method of the electric heater of the embodiment of the present invention, and the method comprises the following steps:
1) detect multiple water temperatures of differing heights position in the water tank of this electric heater.This is because of the water in the water tank of electric heater the temperature difference in differing heights position, basically identical in the water temperature of equal height position, therefore needs the water temperature of differing heights to detect.
2) calculation procedure 1) in the mean value T of multiple water temperatures of recording
ad, and by this mean value T
adwith N preset temperature T
1, T
2..., T
ncompare, then according to mean value T
adwith N preset temperature T
1, T
2..., T
nbetween result relatively determine the hot water amount in water tank.Wherein, N preset temperature T
1, T
2..., T
nfor the temperature value of selecting according to actual service condition.At this N preset temperature T
1, T
2..., T
nin, by T
1to T
ntemperature value increase gradually.In other words, N is more than or equal to 2 integer, and i is more than or equal to 1 and be less than the integer of N and T
i<T
i+1.
3) step display 2) definite hot water amount.
According to the control method of the electric heater of the embodiment of the present invention, detect the temperature value of differing heights position in electric heater, the mean value of this temperature can be thought the mean temperature in electric heater.Then judge hot water amount according to the comparative result of this temperature and N preset temperature.Adopt temperature value-taking mean value process, reduced the accidental error of temperature detection, improve accuracy rate.Meanwhile, adopt N preset temperature to judge the hot water amount in electric heater, can improve the precision of testing result and can not increase electrical part and increase cost.Simple in structure, easy to use, can real time inspection hot water amount, to use, improve the performance of electric heater.
In some embodiments of the invention, by T
adcompare with N preset temperature, and according to T
adjudge the hot water amount in water tank with the comparative result of N preset temperature, specifically, if T
ad<T
1, that is to say the mean value T of water temperature
adbe less than the minimum of a value of N preset temperature, determine that the hot water amount in this water tank is 0%.
In addition, if T
ad>=T
n, in other words, T
adbe not less than the maximum of N preset temperature, now, can think in water tank and be full of hot water, determine that described hot water amount is 100%.
In addition, as the mean value T of water temperature
adbetween the maximum of N preset temperature and minimum of a value time, the hot water amount in water tank is between 0 to 100%, by the mean value T of water temperature
adwith the T in N preset temperature
2, T
3... T
n-1compare.Now, for the T in N preset temperature
iif, T
i≤ T
ad< T
i+1, that is to say water temperature mean value T
adtwo adjacent temperature value T in N preset temperature
iand T
i+1between, determining that the hot water amount in this water tank is (i/n) × 100%.
As shown in Figure 2, in a concrete example of above-described embodiment, first can judge the mean temperature T in water tank
adwhether be less than T
1if show that the hot water amount in water tank is 0%; If not, judge T
adwhether be more than or equal to T
nif, show that the hot water amount in water tank is 100%, can stop immediately heating to save the energy.In the time of the hot water using in water tank, because of the cold water of constantly entering, the water temperature in water tank is also constantly changing, and hot water amount also can be along with the water temperature in water tank changes and changes.The hot water amount service condition of user in can real time inspection water tank.
Specifically, first by the water temperature mean value T in water tank
adminimum of a value T with N preset temperature
1relatively, determine in water tank, whether there is hot water according to result of determination.
If T
ad>=T
1, that is to say in water tank and have hot water, by T
adwith T
nrelatively, to determine in water tank whether be full of hot water, that is to say whether the hot water amount in water tank is 100%, if T
ad<T
n, now, in water tank, be not filled hot water, by T
adorder and T
2, T
3..., T
n-1compare, for determining the hot water amount in water tank.
Certainly, the present invention is to T
adwith the mode that more also can adopt other of N preset temperature, for example, by T
adsuccessively with N preset temperature T
1, T
2..., T
ncompare, and according to above-described embodiment according to T
adsuccessively with N preset temperature T
1, T
2..., T
ncomparative result determine the hot water amount in water tank.Above-mentioned to T
adwith the comparative sequence of N preset temperature be only to illustrate of the present invention, not for limiting protection scope of the present invention.
Advantageously, in examples more of the present invention, adopt 10 preset temperatures to detect the hot water amount in water tank, can make hot water amount's result comparatively accurate, the step simultaneously comparing is less, improves the detection efficiency of electric heater.
In addition, in the time of the detection to water the temperature inside the box, respectively the temperature at the bottom in water tank, middle part and top is detected, and by the temperature computation mean value having detected.Now need the temperature spot that detects less, and the wider range detecting, make that testing process is simple and result is more accurate.
Further, in the method, can also further comprise whether the water detecting in described water tank is used.Correspondingly, N preset temperature comprises first group of N preset temperature T
1', T
2' ..., T
n' and second group of N preset temperature T
1", T
2" ..., T
n".
Specifically, if the water in water tank is used, by T
adwith first group of N preset temperature T
1', T
2' ..., T
n' compare.
If the water in water tank is not used, by T
adwith second group of N preset temperature T
1", T
2" ..., T
n" compare.
Control method to electric heater of the present invention concrete example is briefly described below.
This embodiment adopts 10 temperature preset values to detect hot water amount, and table 1 shows first group of N preset temperature T
1', T
2' ..., T
n'.Table 2 shows second group of N preset temperature T
1", T
2" ..., T
n".
Table 1
| T 1’ | T 2’ | T 3’ | T 4’ | T 5’ | T 6’ | T 7’ | T 8’ | T 9’ | T 10’ |
| 31℃ | 34℃ | 38℃ | 42℃ | 47℃ | 51℃ | 58℃ | 64℃ | 67℃ | 71℃ |
Table 2
| Water heater volume | T 1” | T 2” | T 3” | T 4” | T 5” | T 6” | T 7” | T 8” | T 9” | T 10” |
| <50L | 37℃ | 40℃ | 44℃ | 48℃ | 55℃ | 62℃ | 65℃ | 68℃ | 71℃ | 73℃ |
| ≥50L | 37℃ | 40℃ | 43℃ | 46℃ | 49℃ | 53℃ | 57℃ | 61℃ | 65℃ | 68℃ |
With reference to table 1 and table 2, the control method of this electric heater comprises the following steps:
As shown in Figure 3, the first step, detect respectively water tank top, middle part and bottom temperature, and calculating mean value T
ad.
Second step: whether the water detecting in water tank is used, and is proceeded to the 3rd step if the water in water tank is using,
If the water in water tank is not used, proceed to the 4th step.
The 3rd step: first group of preset temperature T of selected use
1', T
2' ..., T
10' detect.Relatively T
adwith the minimum of a value T in first group of preset temperature
1', if T
ad< T
1', hot water quantity display function is 0%; If T
ad>=T
1', compare T
adwith the maximum of T in first group of preset temperature
10', if if T
ad>=T
10', hot water quantity display function is 100%; If T
ad< T
10', make T
adorder and T
2', T
3' ..., T
9' compare, for T
2', T
3' ..., T
9' in any T
i', if T
ad>=T
i', with T
i+1' compare, if T
adbe less than T
i+1', stop comparison, and definite hot water amount is (i/10) × 100%, show definite hot water amount.
The 4th step, second group of preset temperature T of selected use
1", T
2" ..., T
10" detect, and adopt according to the volume size judgement of electric heater water space the preset temperature value of selecting.Relatively T
adwith the minimum of a value T in second group of preset temperature
1", if T
ad< T
1", hot water quantity display function is 0%; If T
ad>=T
1", compare T
adwith the maximum of T in first group of preset temperature
10", if if T
ad>=T
10", hot water quantity display function is 100%; If T
ad< T
10", make T
adorder and T
2", T
3" ..., T
9" compare, for T
2", T
3" ..., T
9" in any T
i", if T
ad>=T
i", with T
i+1" compare, if T
adbe less than T
i+1", stop comparison, and definite hot water amount is (i/10) × 100%, show definite hot water amount.
Describe with reference to the accompanying drawings the electric heater according to the embodiment of the present invention in detail.
As shown in Figure 4, this electric heater comprises: water tank 10, heater block 20, multiple temperature sensor 30, controller (not shown) and display (not shown).
Specifically, water tank 10 is provided with water inlet pipe 11 and outlet pipe 12, and water inlet pipe 11 is for to water tank 10 inner water-supplies, and outlet pipe 12 is the passage that in water tank, hot water flows out.Water inlet pipe 11 and outlet pipe 12 coordinates makes in water tank 10, to have the predetermined water yield.
Described controller is connected with multiple temperature sensors 30 respectively, for the temperature computation mean value T that multiple temperature sensors 30 are detected
adand make the mean value T of water temperature
adwith N preset temperature T
1, T
2..., T
ncompare and determine the hot water amount in water tank 10 according to comparative result.Wherein N is more than or equal to 2 integer, and i is more than or equal to 1 and be less than the integer of N, T
i<T
i+1.Whether can also be used for controlling heat generating components 20 with Time Controller works, in the time that the hot water amount who detects is less than demand, described controller can be controlled heater block 20 and starts heating, and hot water amount is while being not less than demand, and controller can be controlled heating element heater 20 and stops heating.
The hot water amount of the definite water tank 10 of described controller shows by coupled described display, shows hot water amount in water tank so that user uses.
According to the electric heater of the embodiment of the present invention, adopt multiple temperature sensors 30 to detect the temperature value of differing heights position in electric heater, and judge hot water amount according to the comparative result of the mean value of the multiple temperature that detect and N preset temperature.Adopt this electric heater, adopt temperature value-taking mean value process, reduced the accidental error of temperature detection, improve accuracy rate.Meanwhile, adopt N preset temperature to judge the hot water amount in electric heater, can improve the precision of testing result and can not increase electrical part and increase cost.Simple in structure, easy to use, can real time inspection hot water amount, to use, improve the performance of electric heater.
In some embodiments of the invention, by T
adcompare with N preset temperature, and according to T
adjudge the hot water amount in water tank with the comparative result of N preset temperature, specifically, if T
ad<T
1, that is to say the mean value T of water temperature
adbe less than the minimum of a value of N preset temperature, now, can think and there is no hot water in water tank, determine that the hot water amount in this water tank is 0%.
In addition, if T
ad>=T
n, in other words, T
adbe greater than the maximum of N preset temperature, now, can think in water tank and be full of hot water, determine that described hot water amount is 100%.
In addition, as the mean value T of water temperature
adbetween the maximum of N preset temperature and minimum of a value time, the hot water amount in water tank is between 0 to 100%, by the mean value T of water temperature
adwith the T in N preset temperature
2, T
3... T
n-1compare.Now, for the T in N preset temperature
iif, T
i≤ T
ad< T
i+1, that is to say water temperature mean value T
adtwo adjacent temperature value T in N preset temperature
iand T
i+1between, determining that the hot water amount in this water tank is (i/n) × 100%.
In a concrete example of above-described embodiment, first can judge the mean temperature T in water tank
adwhether be less than T
1if show that the hot water amount in water tank is 0%; If not, judge T
adwhether be not less than T
nif, show that the hot water amount in water tank is 100%, can stop immediately heating to save the energy, in the time of the hot water using in water tank, because of the cold water of constantly entering, the water temperature in water tank is also constantly changing, and hot water amount also can be along with the water temperature in water tank changes and changes.The hot water amount service condition of user in can real time inspection water tank.
Specifically, first by the water temperature mean value T in water tank
adminimum of a value T with N preset temperature
1relatively, determine in water tank, whether there is hot water according to result of determination.
If T
ad>T
1, that is to say in water tank and have hot water, by T
adwith T
nrelatively, to determine in water tank whether be full of hot water, that is to say whether the hot water amount in water tank is 100%, if T
ad≤ T
n, now, in water tank, be not filled hot water, by T
adorder and T
2, T
3..., T
n-1compare, for determining the hot water amount in water tank.
Certainly, the present invention is to T
adwith the mode that more also can adopt other of N preset temperature, for example, by T
adsuccessively with N preset temperature T
1, T
2..., T
ncompare, and according to above-described embodiment according to T
adsuccessively with N preset temperature T
1, T
2..., T
ncomparative result determine the hot water amount in water tank.Above-mentioned to T
adwith the comparative sequence of N preset temperature be only to illustrate of the present invention, not for limiting protection scope of the present invention.
In embodiment as shown in Figure 4, temperature sensor 30 is three, three temperature sensors 30 comprise the first temperature sensor 31, the second temperature sensor 32 and three-temperature sensor 33, wherein the first temperature sensor 31 is for detection of the temperature of water tank 10 inner bottom parts, the second temperature sensor 32 is for detection of the temperature at water tank 10 interior middle parts, and three-temperature sensor 33 is for detection of the temperature of water tank 10 inner bottom parts.Thus, accuracy and the detection efficiency of detection architecture have been improved.Certainly, the present invention does not limit the quantity of temperature sensor 30, also can adopt three above temperature sensors 30.
Advantageously, this electric heater also comprises water flow sensor 40, and water flow sensor 40 is located at least one in described water inlet pipe 11 or outlet pipe 12, for detection of whether using the water in water tank 10.Specifically, in the time that the water in water tank 10 is used, have current by water inlet pipe 11 and outlet pipe 12, now have current to pass through by water flow sensor 40 detections that are located on water inlet pipe 11 or outlet pipe 12, to judge that the water in water tank 10 is used.
Wherein N preset temperature comprises first group of N preset temperature T
1', T
2' ..., T
n' and second group of N preset temperature T
1", T
2" ..., T
n".
Described in wherein in the time detecting that water in water tank 10 is being used, controller is by T
adwith first group of N preset temperature T
1', T
2' ..., T
n' compare, and described in the time detecting that water in water tank 10 is not used controller by T
adwith second group of N preset temperature T
1", T
2" ..., T
n" compare.
Thus, make testing result accurate, easy to use.
In addition, those having ordinary skill in the art will appreciate that, in the present invention, hot water amount's demonstration can also have other form, for example, and in other embodiment of the present invention, if T
ad≤ T
1, determine that described hot water amount is 0%; If T
ad> T
n, determine that described hot water amount is 100%; If T
i< T
ad≤ T
i+1, determine that described hot water amount is (i/n) × 100%.
In the description of this description, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And specific features, structure, material or the feature of description can be with suitable mode combination in any one or more embodiment or example.
Although illustrated and described embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, those of ordinary skill in the art can change above-described embodiment within the scope of the invention in the situation that not departing from principle of the present invention and aim, amendment, replacement and modification.
Claims (10)
1. a control method for electric heater, is characterized in that, said method comprising the steps of:
1) detect multiple water temperatures of differing heights position in the water tank of described electric heater;
2) by the mean value T of described multiple water temperatures
adwith N preset temperature T
1, T
2..., T
ncompare and determine the hot water amount in described water tank according to comparative result, wherein N is more than or equal to 2 integer, and i is more than or equal to 1 and be less than the integer of N, T
i<T
i+1; With
3) show described hot water amount.
2. the control method of electric heater according to claim 1, is characterized in that,
If T
ad<T
1, determine that described hot water amount is 0%;
If T
ad>=T
n, determine that described hot water amount is 100%;
If T
i≤ T
ad< T
i+1, determine that described hot water amount is (i/n) × 100%.
3. the control method of electric heater according to claim 2, is characterized in that,
First by T
adwith T
1relatively,
If T
ad>=T
1, by T
adwith T
nrelatively,
If T
ad<T
n, by T
adorder and T
2, T
3..., T
n-1compare.
4. the control method of electric heater according to claim 1, is characterized in that, described preset temperature is 10, and described step 1) comprises the temperature at bottom, middle part and the top detected respectively in described water tank.
5. according to the control method of the electric heater described in any one in claim 1-4, it is characterized in that,
A described N preset temperature comprises first group of N preset temperature T
1', T
2' ..., T
n' and second group of N preset temperature T
1", T
2" ..., T
n";
Described control method also comprises whether the water detecting in described water tank is used;
If the water in described water tank is used, by T
adwith described first group of N preset temperature T
1', T
2' ..., T
n' compare,
If the water in described water tank is not used, by T
adwith described second group of N preset temperature T
1", T
2" ..., T
n" compare.
6. a electric heater, is characterized in that, comprising:
Water tank, described water tank is provided with water inlet pipe and outlet pipe;
Heater block, described heater block is located in described water tank;
Multiple temperature sensors, described multiple temperature sensors are located on described water tank, for detecting respectively the water temperature of differing heights position in described water tank;
Controller, described controller is connected with described multiple temperature sensors respectively, for the mean value T of multiple water temperatures that described multiple temperature sensors are detected
adwith N preset temperature T
1, T
2..., T
ncompare and determine the hot water amount in described water tank according to comparative result, wherein N is more than or equal to 2 integer, and i is more than or equal to 1 and be less than the integer of N, T
i<T
i+1; With
Display, described display is connected with described controller, for showing described hot water amount.
7. electric heater according to claim 6, is characterized in that, described controller is at T
ad<T
1time determine described hot water amount be 0, at T
ad>=T
ntime determine that described hot water amount is 100% and at T
i≤ T
ad< T
i+1time determine that described hot water amount is for (i/n) × 100%.
8. electric heater according to claim 7, is characterized in that, described controller is first by T
adwith T
1relatively, then at T
ad>=T
1time by T
adwith T
nrelatively, finally at T
ad<T
ntime by T
adorder and T
2, T
3..., T
n-1compare.
9. electric heater according to claim 6, is characterized in that, described sensor is three and is respectively used to detect the temperature at bottom, middle part and top in described water tank, and described preset temperature is 10.
10. according to the electric heater described in any one in claim 6-9, it is characterized in that, also comprise water flow sensor, described water flow sensor is located at least one in described water inlet pipe or described outlet pipe, for detection of whether using the water in described water tank;
A wherein said N preset temperature comprises first group of N preset temperature T
1', T
2' ..., T
n' and second group of N preset temperature T
1", T
2' ' ..., T
n";
Described in wherein in the time detecting that water in described water tank is being used, controller is by T
adwith described first group of N preset temperature T
1', T
2' ..., T
n' compare, and described in the time detecting that water in described water tank is not used controller by T
adwith described second group of N preset temperature T
1", T2 ' ' ..., T
n" compare.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210472397.5A CN103836800B (en) | 2012-11-20 | 2012-11-20 | Electric heater and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210472397.5A CN103836800B (en) | 2012-11-20 | 2012-11-20 | Electric heater and control method thereof |
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| CN103836800A true CN103836800A (en) | 2014-06-04 |
| CN103836800B CN103836800B (en) | 2016-08-24 |
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Effective date of registration: 20220830 Address after: 241000 west side of 3 / F, No.5 office building, new energy and new materials gathering area, Fuzhou Road, Jiangbei District, Wuhu City, Anhui Province Patentee after: Wuhu Midea intelligent kitchen electricity Manufacturing Co.,Ltd. Address before: 241009 Wan Chun East Road, East Wuhu economic and Technological Development Zone, Wuhu, Anhui Patentee before: WUHU MIDEA KITCHEN AND BATH APPLIANCES MFG. Co.,Ltd. |