CN104075371B - A kind of electric heater and control method thereof - Google Patents
A kind of electric heater and control method thereof Download PDFInfo
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- CN104075371B CN104075371B CN201310101184.6A CN201310101184A CN104075371B CN 104075371 B CN104075371 B CN 104075371B CN 201310101184 A CN201310101184 A CN 201310101184A CN 104075371 B CN104075371 B CN 104075371B
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Abstract
The present invention proposes the control method of a kind of electric heater, comprises the steps: S1: when electric heater brings into operation, and detects ambient temperature in real time; S2: control electric heater with the first default Power operation very first time, until current environmental temperature reaches preset temperature; S3: obtain the ambient temperature climbing speed in the very first time, and inquire about the power meter preset to obtain the operation power of electric heater according to ambient environment temperature rate-of-rise; S4: control electric heater to run the second time of Power operation; S5: adjust the operation power of electric heater according to current environmental temperature changing value within the second time and the power meter preset, and repeat S4 and S5. The present invention can make electric heater intelligent constant-temperature heat, it is to avoid electric switch do not stop closed and disconnected, energy-conserving and environment-protective, increase the comfortable experience that constant temperature is required by user. The present invention also proposes a kind of electric heater.
Description
Technical field
The present invention relates to heating system technical field, particularly to the control method of a kind of electric heater and a kind of electric heater.
Background technology
At present, the heating mode of existing space heater has several as follows:
The first is that independent gear regulates, for peak power for 2000W, this kind of electric heater is with 800W-1200W-2000W third gear power adjustable, machine can only be foolproof according to user set gear work, and control without temperature, there is underheat or add the problem of heat waster, not being provided that intelligent comfortable heating simultaneously.
The second is that gear adjustment+temperature regulates, and for peak power for 2000W, this kind of electric heater, equally with 800W-1200W-2000W third gear power adjustable, can regulate temperature under every grade of power. Such as 24 degree, 800W shelves it are set as, machine is likely to forever room temperature to be heated to 24 degree, it is set as again 24 degree, 2000W shelves, machine can be heated to 24 degree, but when machine is heated to 24 degree, stops heating, machine has a thermal inertia, make room temperature be higher than 24 degree, cause waste, northern preferably particularly in indoor sealing. The heating mode of this electric heater has certain temperature to control effect, but not intelligent, there is underheat or adds the problem of heat waster, and heating can not meet comfort need.
The third is that temperature adjustment+gear varies with temperature, for peak power for 2000W, this kind of electric heater is also with 800W-1200W-2000W third gear power adjustable, temperature can be regulated, gear varies with temperature, as it is shown in figure 1, such as set 24 degree, when ambient temperature is less than 22 degree, run with high-grade state;When ambient temperature is more than 22 degree and less than 24 degree, run with middle-grade state; When ambient temperature is more than 24 degree and less than 26 degree, run with Low gear state; When ambient temperature is more than 26 degree, stop heating. The heating mode of this electric heater has certain temperature to control effect, but not exclusively intelligent, equally exists underheat or adds the problem of heat waster, and heating can not meet comfort need.
4th kind is the electric heater that can be automatically adjusted output, as in figure 2 it is shown, when ambient temperature Ta is lower than design temperature Ts, and Ta Ts-A(such as A=5 degree) time the heating of machine top grade, when Ts-A Ta Ts-B(such as B=2 degree) time the middle-grade heating of machine, as Ts-B Ta Ts, machine heats with low grade, as Ta Ts, machine stops heating, the heating of corresponding gear is recovered when temperature lowers again. the power of the electric heater of this mode, temperature change over curve as it is shown on figure 3, wherein, and top grade is such as 2000W, and middle-grade is such as 1200W, and low grade is such as 800W. as shown in Figure 3, this mode can allow machine with low-power operation preferably in the temperature range set, but which has the drawback that: machine heating has a thermal inertia, when machine is heated to Ta Ts, Ta also can rise certain value, we assume that be Tx, the size of Tx value is relevant with the characteristic of environment and machine itself, it is Ts-B Ta Tx that such machine always works in a temperature range, if B is too little, can cause such as the shortening of Fig. 3 time T1, the electric switch controlling 800W power such as can ceaselessly close switch for relay, affect the life-span of electric switch, the sound of Simultaneous Switching closed and disconnected is likely to the experience affecting user. if B value sets too big, will result in temperature fluctuation range very big, also can affect the user's comfortable experience to constant temperature requirement. the temperature that simultaneously thermal inertia is brought also is energy dissipation (in dotted line circle) higher than the Tx of design temperature, and user is it is desirable that Ts, rather than Tx, thus the comfort need of user can not be met.
Summary of the invention
The purpose of the present invention is intended at least solve one of above-mentioned technical problem.
For this, it is an object of the present invention to propose the control method of a kind of electric heater, the method can adjust the operation power of electric heater in real time according to the situation of change of current environmental temperature, so that the heating of electric heater intelligent constant-temperature, energy-conserving and environment-protective, increase user's comfortable experience that constant temperature is required, and it can be avoided that electric switch do not stop closed and disconnected. Further object is that a kind of electric heater of proposition.
For reaching above-mentioned purpose, first aspect present invention embodiment proposes the control method of a kind of electric heater, comprises the steps:
S1: when electric heater brings into operation, detects ambient temperature in real time;
S2: control described electric heater with the first default Power operation very first time, until current environmental temperature reaches preset temperature;
S3: obtain the ambient temperature climbing speed in the described very first time, and inquire about the power meter preset to obtain the operation power of described electric heater according to described ambient temperature climbing speed, wherein, in described default power meter, it is corresponding that each ambient temperature climbing speed and an electric heater run power;
S4: controlling described electric heater with described second time of operation Power operation, wherein, described second time is preset value;
S5: adjust the operation power of described electric heater according to described current environmental temperature changing value within described second time and described default power meter, and repeat step S4 and step S5.
The control method of the electric heater proposed according to embodiments of the present invention, by detecting ambient temperature in real time, the operation power of electric heater can be adjusted in real time according to the situation of change of current environmental temperature, so that the heating of electric heater intelligent constant-temperature, it is to avoid electric switch do not stop closed and disconnected, extend the electrical endurance of switch, decrease noise, and also reduce power consumption, energy-conserving and environment-protective, add the user's comfortable experience to constant temperature requirement.
In one embodiment of the invention, described ambient temperature climbing speed calculates according to below equation and obtains:
Ka=(Tm-Tn)/�� t
Wherein, Ka is described ambient temperature climbing speed, and �� t is for running the time period, and Tn is �� t initial temperature during this period of time, and Tm is �� t end temp during this period of time;
Described default power meter is that ambient temperature climbing speed interval-electric heater runs power-power grade one_to_one corresponding table, and the operation power of described electric heater is calculated by below equation and obtains:
Px=L*D*y*Pm
Wherein, Px is the operation power of described electric heater, and L is the first parameter preset, and D is described power grade and is the integer be more than or equal to 0, and y is the power back-off factor, and Pm is described the first default power.
Wherein, in one embodiment of the invention, in step s3, the power back-off factor corresponding to described operation power is predesigned compensation value.
Further, in one embodiment of the invention, in step s 5, the control method of described electric heater also includes: if the absolute value of the changing value of described current environmental temperature is not less than preset temperature threshold value, then the described power back-off factor is set to described predesigned compensation value, then correspondingly adjusts the grade of described operation power according to the change of described current environmental temperature.
Further, in one embodiment of the invention, in step s 5, the control method of described electric heater also includes:
Obtain the ambient temperature climbing speed in described second time;
If the absolute value of the changing value of described current environmental temperature exceedes preset temperature threshold value, then the described power back-off factor is set to N/Ka, wherein, N is the second parameter preset, Ka is the ambient temperature climbing speed in described second time, then correspondingly adjusts the grade of described operation power according to the change of current environmental temperature.
Preferably, in one embodiment of the invention, when adjusting the grade of described operation power, adjust one-level every time.
Second aspect present invention embodiment further provides a kind of electric heater, including: heating module; Detection module, is used for the heat time heating time of detection ambient temperature and heating module in real time to generate temperature signal and time signal respectively; Stepless change merit module, for adjusting the operation power of electric heater, wherein, when described electric heater brings into operation, set described operation power as the first default power, hereafter, obtain ambient temperature climbing speed according to described temperature signal and time signal, and adjust described operation power according to described ambient temperature climbing speed and default power meter, wherein, in described default power meter, it is corresponding that each ambient temperature climbing speed and an electric heater run power; Control module, for controlling the heating of described heating module according to described operation power, wherein, when described electric heater brings into operation, heat time heating time is the very first time, and the described very first time is bring into operation to ambient temperature from electric heater to reach time of preset temperature, hereafter, heat time heating time corresponding to each operation power was the second time, and described second time is Preset Time.
The electric heater proposed according to embodiments of the present invention, by detecting ambient temperature in real time, adjusts operation power in real time according to the situation of change of current environmental temperature, thus realizing intelligent constant-temperature heating, what avoid electric switch does not stop closed and disconnected, extends the electrical endurance of switch, decreases noise, and also reduce power consumption, energy-conserving and environment-protective, add the user's comfortable experience to constant temperature requirement, improve Consumer's Experience, meet the living needs of people, improve the quality of life of people.
In one embodiment of the invention, described stepless change merit module obtains described ambient temperature climbing speed according to below equation:
Ka=(Tm-Tn)/�� t
Wherein, Ka is described ambient temperature climbing speed, and �� t is for running the time period, and Tn is �� t initial temperature during this period of time, and Tm is �� t end temp during this period of time;
Described default power meter is that ambient temperature climbing speed interval-electric heater runs power-power grade one_to_one corresponding table, and the operation power of described electric heater is calculated by below equation and obtains:
Px=L*D*y*Pm
Wherein, Px is the operation power of described electric heater, and L is the first parameter preset, and D is described power grade and is the integer be more than or equal to 0, and y is the power back-off factor, and Pm is described the first default power.
Further, in one embodiment of the invention, if the absolute value of the changing value of described current environmental temperature is not less than preset temperature threshold value within described second time, then the described power back-off factor is set to predesigned compensation value by described stepless change merit module, and correspondingly adjusts the grade of described operation power according to the change of described current environmental temperature.
Further, in one embodiment of the invention, described stepless change merit module is additionally operable to obtain the ambient temperature climbing speed in described second time; If the absolute value of the changing value of described current environmental temperature exceedes preset temperature threshold value, then the described power back-off factor is set to N/Ka by described stepless change merit module, wherein, N is the second parameter preset, Ka is the ambient temperature climbing speed in described second time, and correspondingly adjusts the grade of described operation power according to the change of described current environmental temperature.
Preferably, in one embodiment of the invention, when adjusting the grade of described operation power, adjust one-level every time.
Aspect and advantage that the present invention adds will part provide in the following description, and part will become apparent from the description below, or is recognized by the practice of the present invention.
Accompanying drawing explanation
The present invention above-mentioned and/or that add aspect and advantage will be apparent from easy to understand from the following description of the accompanying drawings of embodiments, wherein:
Fig. 1 is the schematic diagram of the heating mode of existing a kind of electric heater;
Fig. 2 is the schematic diagram of the heating mode of existing another kind of electric heater;
Fig. 3 is the electric heater power corresponding with Fig. 2, the time dependent schematic diagram of ambient temperature;
Fig. 4 is the flow chart of the control method of electric heater according to embodiments of the present invention;
Fig. 5 is the flow chart of the control method of the electric heater according to one specific embodiment of the present invention;
The electric heater that Fig. 6 is the present invention runs power, the time dependent schematic diagram of ambient temperature; And
Fig. 7 is the structural representation of electric heater according to an embodiment of the invention.
Accompanying drawing labelling:
Electric heater 1000, heating module 100, detection module 200, stepless change merit module 300, control module 400.
Detailed description of the invention
Being described below in detail embodiments of the invention, 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 same or like function from start to finish.The embodiment described below with reference to accompanying drawing is illustrative of, and is only used for explaining the present invention, and is not construed as limiting the claims.
Following disclosure provides many different embodiments or example for realizing the different structure of the present invention. In order to simplify disclosure of the invention, hereinafter parts and setting to specific examples are described. Certainly, they are only merely illustrative, and are not intended to the restriction present invention. Additionally, the present invention can in different examples repeat reference numerals and/or letter. This repetition is for purposes of simplicity and clarity, the relation between itself not indicating discussed various embodiment and/or arranging. Additionally, the example of the various specific technique that the invention provides and material, but those of ordinary skill in the art are it can be appreciated that the use of the applicability of other techniques and/or other materials. Additionally, fisrt feature described below second feature it " on " structure can include the first and second features and be formed as the embodiment of directly contact, can also including other feature and form the embodiment between the first and second features, such first and second features are not likely to be direct contact.
In describing the invention, it should be noted that, unless otherwise prescribed and limit, term " installation ", " being connected ", " connection " should be interpreted broadly, for instance, can be mechanically connected or electrical connection, can also be the connection of two element internals, it is possible to be joined directly together, it is also possible to be indirectly connected to by intermediary, for the ordinary skill in the art, it is possible to understand the concrete meaning of above-mentioned term as the case may be.
With reference to as explained below and accompanying drawing, it will be clear that these and other aspects of embodiments of the invention. Describe at these and in accompanying drawing, specifically disclose some particular implementation in embodiments of the invention, representing some modes of the principle implementing embodiments of the invention, but it is to be understood that the scope of embodiments of the invention is not limited. On the contrary, all changes within the scope of embodiments of the invention include falling into attached claims spirit and intension, amendment and equivalent.
The control method of the electric heater that embodiment proposes is described to the first aspect of the present invention with reference to the accompanying drawings.
As shown in Figure 4, the control method of the electric heater of one embodiment of the present of invention, comprise the steps:
Step S1, when electric heater brings into operation, detects ambient temperature in real time.
Step S2, controls electric heater with the first default Power operation very first time T1, until current environmental temperature reaches preset temperature. Wherein, the first power preset can be peak power and the full power of electric heater, and very first time T1 is to bring into operation to ambient temperature from electric heater and reaches time of preset temperature.
Step S3, it is thus achieved that the ambient temperature climbing speed in the very first time, and ask the power meter preset to obtain the operation power of electric heater according to ambient temperature rising quick checking. Wherein, in default power meter, it is corresponding that each ambient temperature climbing speed and an electric heater run power.
It is understood that in order to obtain the ambient temperature climbing speed in very first time T1, in step S2 or S3, also include measuring the step obtaining very first time T1.
Wherein, in an embodiment of the present invention, ambient temperature climbing speed calculates according to below equation and obtains:
Ka=(Tm-Tn)/�� t
Wherein, Ka is described ambient temperature climbing speed, and �� t is for running the time period, and Tn is �� t initial temperature during this period of time, and Tm is �� t end temp during this period of time.
Thus, the environment climbing speed Ka=(Ts-T0 in very first time T1)/T1, Ts be preset temperature, T0 is electric heater ambient temperature when bringing into operation.
In one particular embodiment of the present invention, the power meter preset is as shown in table 1 below.
Table 1
In an embodiment of the present invention, the power meter preset is that ambient temperature climbing speed interval-electric heater runs power-power grade one_to_one corresponding table, and the operation power of electric heater is calculated by below equation and obtains:
Px=L*D*y*Pm
Wherein, Px is the operation power of electric heater, and L is the first parameter preset, and D is power grade and is the integer be more than or equal to 0, and y is the power back-off factor, and Pm is the first default power and full power.
Preferably, as shown in table 1, the operation power P x=0.1*D*y*Pm of electric heater, namely says, the first parameter preset L is 0.1.
Specifically, in one embodiment of the invention, in step s3, running the power back-off factor corresponding to power is predesigned compensation value, and wherein, predesigned compensation value can be 1. That is, it is thus achieved that after the ambient temperature climbing speed Ka in the very first time, when the power back-off factor is 1, inquiry is preset power meter and table 1 obtain the operation power of electric heater.
Step S4, controls electric heater to run the second time of Power operation, and wherein, the second time was preset value.
Step S5: adjust the operation power of electric heater according to current environmental temperature changing value within the second time and the power meter preset, and repeat step S4 and step S5, until receiving the orders such as stopping heating or shutdown.
Further, in one embodiment of the invention, in step s 5, the control method of above-mentioned electric heater also includes:
Obtain the ambient temperature climbing speed in the second time T2, i.e. Ka=(Tm-Tn)/T2;
If the absolute value of the changing value of current environmental temperature exceedes preset temperature threshold value, then the power back-off factor is set to N/Ka, wherein, N is the second parameter preset, and Ka is the ambient temperature climbing speed in the second time, then correspondingly adjusts the grade running power according to the change of current environmental temperature, namely when the environment temperature decreases, heighten the grade running power, when ambient temperature raises, turn down the grade running power.
Further, in one embodiment of the invention, in step s 5, the control method of above-mentioned electric heater also includes: if the absolute value of the changing value of current environmental temperature is not less than preset temperature threshold value, then the power back-off factor is set to predesigned compensation value, then correspondingly adjusts the grade running power according to the change of current environmental temperature. Wherein, in one particular embodiment of the present invention, preset temperature threshold value is 0.5K.
Preferably, in one embodiment of the invention, when adjusting the grade running power, adjust one-level every time.
In one particular embodiment of the present invention, as it is shown in figure 5, the control method of above-mentioned electric heater is:
Step S10, user preset temperature is Ts.
Step S20, the initial ambient temperature of sensing is T0.
Step S30, records Ts and T0, and opens peak power Pm heating t minute, until Ta=Ts.
Specifically, after execution of step S10 and S20, electric heater is with the first default Power operation
Step S40, calculates temperature rise rate Ka=(Ts-T0)/t.
Step S50, tables look-up 1 according to Ka, it is determined that next step power P x, and now setting power compensating factor y is 1.
Step S60, works a period of time �� t with Px.
Step S70, calculates environment temperature rise rate Ka=(Tm-Tn during this period of time)/�� t.
Step S80, it is judged that whether ambient temperature Ta rises or falls more than 0.5K. If Ta varies more than 0.5K, then perform step S90 and step S100 further; If Ta changes less than 0.5K, then perform step S110.
Step S90, if ambient temperature Ta rises, lowers 1 grade, y=0.1/Ka by power P x according to table 1.
It is to say, when the changing value of current environmental temperature Ta exceedes preset temperature threshold value and 0.5K and is rise, the operation power P x controlling electric heater according to default power meter and table 1 lowers 1 grade, wherein, power back-off factor y is N/Ka, and the second parameter preset N is 0.1, i.e. y=0.1/Ka.
Step S100, if ambient temperature Ta declines, raises 1 grade, y=0.1/Ka by power P x according to table 1.
It is to say, when the changing value Ta of current environmental temperature exceedes preset temperature threshold value and 0.5K and is decline, the operation power P x controlling electric heater according to default power meter and table 1 raises 1 grade, wherein, power back-off factor y is N/Ka, and the second parameter preset N is 0.1, i.e. y=0.1/Ka.
Step S110, it is judged that ambient temperature Ta rises or declines. If ambient temperature Ta rises, then perform step S120; If ambient temperature Ta declines, then perform step S130.
Step S120, lowers 1 grade, y=1 by power P x according to table 1.
That is, when the changing value of current environmental temperature Ta is less than preset temperature threshold value and 0.5K and for rising, the operation power P x controlling electric heater according to default power meter and table 1 lowers 1 grade, wherein, power back-off factor y is predesigned compensation value, i.e. y=1.
Step S130, raises 1 grade, y=1 by power P x according to table 1.
That is, when the changing value of current environmental temperature Ta is less than preset temperature threshold value and 0.5K and for declining, the operation power P x controlling electric heater according to default power meter and table 1 raises 1 grade, wherein, power back-off factor y is predesigned compensation value, i.e. y=1.
It should be noted that after power P x is raised or lowered, return step S60, namely work a period of time �� t with this Px, so circulate.
Fig. 6 is the operation power of the electric heater of the present invention, the time dependent schematic diagram of ambient temperature. As shown in Figure 6, the operation power of electric heater such as does stepless change for 2000W from 0 to 1 times of Pm and full power, when ambient temperature is close to user preset temperature Ts, the operation power of electric heater will adjust along with ambient temperature climbing speed Ka, the operation power of the more big electric heater of Ka is more low, the operation power of the more little electric heater of Ka is more high, thus realizing stablizing of temperature, temperature rise change infinite approach is zero.
The present invention is by calculating the curvature of temperature rise and fall, power stepless change is adjusted, progressively find the equilibrium point of heating power and thermal losses, namely variation of ambient temperature is only small, make ambient temperature and preset temperature be fused into straight line gradually, be gradually reduced preset temperature line and the Delta Region of ambient temperature line. Thus, allow ambient temperature all the time at the operated within range that user preset temperature Ts is only small, it is achieved intelligent constant-temperature, and reduce the area of Delta Region above preset temperature line, thus eliminating the energy dissipation that thermal inertia is brought, to reduce power consumption, reach energy-conservation purpose.
Additionally, the switching device in technical solution of the present invention is always up duty, allow heater be operated in less power bracket, it is to avoid electric switch do not stop closed and disconnected, extend the electrical endurance of switch.
The control method of the electric heater proposed according to embodiments of the present invention, by detecting ambient temperature in real time, the operation power of electric heater can be adjusted in real time according to the situation of change of current environmental temperature, so that the heating of electric heater intelligent constant-temperature, it is to avoid electric switch do not stop closed and disconnected, extend the electrical endurance of switch, decrease noise, and also reduce power consumption, energy-conserving and environment-protective, add the user's comfortable experience to constant temperature requirement.
It is described referring to Fig. 7 electric heater that second aspect present invention embodiment is proposed.
Fig. 7 illustrates the structural representation of the electric heater of one embodiment of the invention. As it is shown in fig. 7, the electric heater 1000 that one embodiment of the invention proposes includes: heating module 100, detection module 200, stepless change merit module 300 and control module 400.
Detection module 200 is used for the heat time heating time of detection ambient temperature and heating module 100 in real time to generate temperature signal and time signal respectively. Therefore, in a concrete example of the present invention, detection module 200 includes temperature sensor, timing circuit etc., and wherein, temperature sensor detects ambient temperature in real time, and timing circuit detects the heat time heating time of heating module 100 in real time.
Stepless change merit module 300, for adjusting the operation power of electric heater 1000, wherein, when electric heater 1000 brings into operation, set operation power as the first default power, hereafter, obtain ambient temperature climbing speed according to temperature signal and time signal, and run power according to ambient temperature climbing speed and default power meter adjustment, wherein, in default power meter, it is corresponding that each ambient temperature climbing speed and an electric heater run power.
Control module 400, heat for controlling heating module 100 according to operation power, wherein, when electric heater 1000 brings into operation, heat time heating time is very first time T1, and very first time T1 brings into operation to ambient temperature from electric heater 1000 to reach time of preset temperature, hereafter, heat time heating time corresponding to each operation power is the second time T2, and the second time T2 is Preset Time.
In one embodiment of the invention, stepless change merit module 300 obtains ambient temperature climbing speed according to below equation:
Ka=(Tm-Tn)/�� t
Wherein, Ka is ambient temperature climbing speed, and �� t is for running the time period, and Tn is �� t initial temperature during this period of time, and Tm is �� t end temp during this period of time.
It is to say, the ambient temperature climbing speed Ka=(Ts-T0 in very first time T1)/T1, wherein, Ka is ambient temperature climbing speed, and Ts is preset temperature, and T0 is the electric heater 1000 ambient temperature when bringing into operation.
In one embodiment of the invention, the power meter preset is that ambient temperature climbing speed interval-electric heater runs power-power grade one_to_one corresponding table, and the operation power of electric heater 1000 is calculated by below equation and obtains:
Px=L*D*y*Pm
Wherein, Px is the operation power of electric heater 1000, and L is the first parameter preset, and D is power grade and is the integer be more than or equal to 0, and y is the power back-off factor, and Pm is the first default power.
Preferably, in one particular embodiment of the present invention, the first parameter preset is 0.1, namely says, Px=0.1*D*y*Pm.
In an embodiment of the present invention, after heating module 100 is with the first default power heating very first time T1, namely after ambient temperature reaches preset temperature, now, stepless change merit module 300 obtains the ambient temperature climbing speed in very first time T1, and according to ambient temperature climbing speed and default power meter to obtain the operation power of electric heater 1000, now, the power back-off factor corresponding to power of running of electric heater 1000 is predesigned compensation value, and wherein, predesigned compensation value can be 1.
Further, if the absolute value of the changing value of current environmental temperature is not less than preset temperature threshold value in the second time T2, then the power back-off factor is set to predesigned compensation value by stepless change merit module 300, i.e. y=1, and the change according to current environmental temperature correspondingly adjusts the grade running power.
In the present embodiment, stepless change merit module 300 is additionally operable to obtain the ambient temperature climbing speed in the second time T2; If the absolute value of the changing value of current environmental temperature exceedes preset temperature threshold value, then the power back-off factor is set to N/Ka by stepless change merit module 300, wherein, N is the second parameter preset, Ka is the ambient temperature climbing speed in the second time, and the change according to current environmental temperature correspondingly adjusts the grade running power.
It is to say, when the environment temperature decreases, stepless change merit module 300 heightens the grade running power, and when ambient temperature raises, stepless change merit module 300 turns down the grade running power.
Preferably, in one particular embodiment of the present invention, the second parameter preset N is 0.1, say, that if the absolute value of the changing value of current environmental temperature exceedes preset temperature threshold value, then the power back-off factor is set to 0.1/Ka.
Preferably, in one embodiment of the invention, when adjusting the grade running power, adjust one-level every time.
In one particular embodiment of the present invention, the control principle of above-mentioned electric heater 1000 is:
When electric heater 1000 is started working, detection module 200 detects ambient temperature in real time, and the ambient temperature that sensing initiates is T0. electric heater 1000 controls heating module 100 according to the first default power and full power Pm and runs very first time T1 such as t minute, until current environmental temperature Ta reaches preset temperature Ts, i.e. Ta=Ts, according to Ka=(Ts-T0)/t obtains ambient temperature climbing speed Ka, and inquire about predetermined power table, when power back-off factor y is predesigned compensation value, i.e. y=1, obtain and run power, now the operation power of electric heater 1000 is Px, heating module 100 runs a period of time �� t with Px, stepless change merit module 300 calculates the ambient temperature climbing speed Ka at �� t during this period of time, judge that current environmental temperature Ta rises or falls and whether exceed preset temperature threshold value such as 0.5K.
Current environmental temperature Ta changing value more than 0.5K and for rise time, stepless change merit module 300 is by 1 grade of operation power decreasing of electric heater 1000; When the changing value of current environmental temperature Ta is more than 0.5K and for declining, the operation power of electric heater 1000 is raised 1 grade by stepless change merit module 300, and wherein, power back-off factor y is 0.1/Ka.
Current environmental temperature Ta changing value less than 0.5K and for rise time, stepless change merit module 300 is by 1 grade of operation power decreasing of electric heater 1000; When the changing value of current environmental temperature Ta is less than 0.5K and for declining, the operation power of electric heater 1000 is raised 1 grade by stepless change merit module 300, and wherein, power back-off factor y is 1.
Control module 400 to heat according to the operation power control heating module 100 after adjusting. Namely heating module 100 runs with the operation power P x after adjusting, and after a period of time �� t that works with this Px, again judges that ambient temperature Ta rises or falls and whether exceed preset temperature threshold value and 0.5K, so circulate.
The electric heater proposed according to embodiments of the present invention, by detecting ambient temperature in real time, adjusts operation power in real time according to the situation of change of current environmental temperature, thus realizing intelligent constant-temperature heating, what avoid electric switch does not stop closed and disconnected, extends the electrical endurance of switch, decreases noise, and also reduce power consumption, energy-conserving and environment-protective, add the user's comfortable experience to constant temperature requirement, improve Consumer's Experience, meet the living needs of people, improve the quality of life of people.
Describe in flow chart or in this any process described otherwise above or method and be construed as, represent and include the module of code of executable instruction of one or more step for realizing specific logical function or process, fragment or part, and the scope of the preferred embodiment of the present invention includes other realization, wherein can not press order that is shown or that discuss, including according to involved function by basic mode simultaneously or in the opposite order, performing function, this should be understood by embodiments of the invention person of ordinary skill in the field.
Represent in flow charts or in this logic described otherwise above and/or step, such as, it is considered the sequencing list of executable instruction for realizing logic function, may be embodied in any computer-readable medium, use for instruction execution system, device or equipment (such as computer based system, including the system of processor or other can from instruction execution system, device or equipment instruction fetch the system performing instruction), or use in conjunction with these instruction execution systems, device or equipment. For the purpose of this specification, " computer-readable medium " can be any can comprise, store, communicate, propagate or transmission procedure is for instruction execution system, device or equipment or the device that uses in conjunction with these instruction execution systems, device or equipment. The example more specifically (non-exhaustive list) of computer-readable medium includes following: have the electrical connection section (electronic installation) of one or more wiring, portable computer diskette box (magnetic device), random-access memory (ram), read only memory (ROM), erasable edit read only memory (EPROM or flash memory), fiber device, and portable optic disk read only memory (CDROM). Additionally, computer-readable medium can even is that the paper that can print described program thereon or other suitable media, because can such as by paper or other media be carried out optical scanning, then carry out editing, interpreting or be processed to electronically obtain described program with other suitable methods if desired, be then stored in computer storage.
Should be appreciated that each several part of the present invention can realize with hardware, software, firmware or their combination. In the above-described embodiment, multiple steps or method can realize with the storage software or firmware in memory and by suitable instruction execution system execution. Such as, if realized with hardware, the same in another embodiment, can realize by any one in following technology well known in the art or their combination: there is the discrete logic of logic gates for data signal realizes logic function, there is the special IC of suitable combination logic gate circuit, programmable gate array (PGA), field programmable gate array (FPGA) etc.
Those skilled in the art are appreciated that realizing all or part of step that above-described embodiment method carries can be by the hardware that program carrys out instruction relevant and complete, described program can be stored in a kind of computer-readable recording medium, this program upon execution, including the step one or a combination set of of embodiment of the method.
Additionally, each functional unit in each embodiment of the present invention can be integrated in a processing module, it is also possible to be that unit is individually physically present, it is also possible to two or more unit are integrated in a module. Above-mentioned integrated module both can adopt the form of hardware to realize, it would however also be possible to employ the form of software function module realizes. If described integrated module is using the form realization of software function module and as independent production marketing or use, it is also possible to be stored in a computer read/write memory medium.
Storage medium mentioned above can be read only memory, disk or CD etc.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means in conjunction with this embodiment or example describe are contained at least one embodiment or the example of the present invention. In this manual, the schematic representation of above-mentioned term is not necessarily referring to identical embodiment or example. And, the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiments or example.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, being appreciated that and these embodiments can be carried out multiple change, amendment, replacement and modification without departing from the principles and spirit of the present invention, the scope of the invention and equivalency.
Claims (11)
1. the control method of an electric heater, it is characterised in that comprise the following steps:
S1: when electric heater brings into operation, detects ambient temperature in real time;
S2: control described electric heater with the first default Power operation very first time, until current environmental temperature reaches preset temperature;
S3: obtain the ambient temperature climbing speed in the described very first time, and inquire about the power meter preset to obtain the operation power of described electric heater according to described ambient temperature climbing speed, wherein, in described default power meter, it is corresponding that each ambient temperature climbing speed and an electric heater run power;
S4: controlling described electric heater with described second time of operation Power operation, wherein, described second time is preset value;
S5: adjust the operation power of described electric heater according to described current environmental temperature changing value within described second time and described default power meter, and repeat step S4 and step S5.
2. the control method of electric heater as claimed in claim 1, it is characterised in that described ambient temperature climbing speed calculates according to below equation and obtains:
Ka=(Tm-Tn)/�� t
Wherein, Ka is described ambient temperature climbing speed, and �� t is for running the time period, and Tn is �� t initial temperature during this period of time, and Tm is �� t end temp during this period of time;
Described default power meter is that ambient temperature climbing speed interval-electric heater runs power-power grade one_to_one corresponding table, and the operation power of described electric heater is calculated by below equation and obtains:
Px=L*D*y*Pm
Wherein, Px is the operation power of described electric heater, and L is the first parameter preset, and D is described power grade and is the integer be more than or equal to 0, and y is the power back-off factor, and Pm is described the first default power.
3. the control method of electric heater as claimed in claim 2, it is characterised in that in step s3, the power back-off factor corresponding to described operation power is predesigned compensation value.
4. the control method of electric heater as claimed in claim 2, it is characterised in that in step s 5, also include:
If the absolute value of the changing value of described current environmental temperature is not less than preset temperature threshold value, then the described power back-off factor is set to predesigned compensation value, then correspondingly adjusts the grade of described operation power according to the change of described current environmental temperature.
5. the control method of electric heater as claimed in claim 2, it is characterised in that in step s 5, also include:
Obtain the ambient temperature climbing speed in described second time;
If the absolute value of the changing value of described current environmental temperature exceedes preset temperature threshold value, then the described power back-off factor is set to N/Ka, wherein, N is the second parameter preset, Ka is the ambient temperature climbing speed in described second time, then correspondingly adjusts the grade of described operation power according to the change of current environmental temperature.
6. the control method of the electric heater as described in claim 4 or 5, it is characterised in that when adjusting the grade of described operation power, every time adjust one-level.
7. an electric heater, it is characterised in that including:
Heating module;
Detection module, is used for the heat time heating time of detection ambient temperature and heating module in real time to generate temperature signal and time signal respectively;
Stepless change merit module, for adjusting the operation power of electric heater, wherein, when described electric heater brings into operation, set described operation power as the first default power, hereafter, obtain ambient temperature climbing speed according to described temperature signal and time signal, and adjust described operation power according to described ambient temperature climbing speed and default power meter, wherein, in described default power meter, it is corresponding that each ambient temperature climbing speed and an electric heater run power;
Control module, for controlling the heating of described heating module according to described operation power, wherein, when described electric heater brings into operation, heat time heating time is the very first time, and the described very first time is bring into operation to ambient temperature from electric heater to reach time of preset temperature, hereafter, heat time heating time corresponding to each operation power was the second time, and described second time is Preset Time.
8. electric heater as claimed in claim 7, it is characterised in that described stepless change merit module obtains described ambient temperature climbing speed according to below equation:
Ka=(Tm-Tn)/�� t
Wherein, Ka is described ambient temperature climbing speed, and �� t is for running the time period, and Tn is �� t initial temperature during this period of time, and Tm is �� t end temp during this period of time;
Described default power meter is that ambient temperature climbing speed interval-electric heater runs power-power grade one_to_one corresponding table, and the operation power of described electric heater is calculated by below equation and obtains:
Px=L*D*y*Pm
Wherein, Px is the operation power of described electric heater, and L is the first parameter preset, and D is described power grade and is the integer be more than or equal to 0, and y is the power back-off factor, and Pm is described the first default power.
9. electric heater as claimed in claim 8, it is characterised in that
If the absolute value of the changing value of current environmental temperature is not less than preset temperature threshold value within described second time, then the described power back-off factor is set to predesigned compensation value by described stepless change merit module, and correspondingly adjusts the grade of described operation power according to the change of described current environmental temperature.
10. electric heater as claimed in claim 8, it is characterised in that
Described stepless change merit module is additionally operable to obtain the ambient temperature climbing speed in described second time;
If the absolute value of the changing value of current environmental temperature exceedes preset temperature threshold value, then the described power back-off factor is set to N/Ka by described stepless change merit module, wherein, N is the second parameter preset, Ka is the ambient temperature climbing speed in described second time, and correspondingly adjusts the grade of described operation power according to the change of described current environmental temperature.
11. the electric heater as described in claim 9 or 10, it is characterised in that when adjusting the grade of described operation power, every time adjust one-level.
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| CN107039949A (en) * | 2017-06-13 | 2017-08-11 | 芜湖桑健电子科技有限公司 | Self-protection method between Saunas |
| CN107166491A (en) * | 2017-06-13 | 2017-09-15 | 芜湖桑乐金电子科技有限公司 | The portable heating picture and long-range control method of remote control |
| CN107191999A (en) * | 2017-06-13 | 2017-09-22 | 芜湖桑乐金电子科技有限公司 | Portable heating picture and its from moving method |
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| CN107575933A (en) * | 2017-09-28 | 2018-01-12 | 江苏众众热能科技有限公司 | A kind of control method of Intelligent electric heating device |
| EP3482661B1 (en) | 2017-11-14 | 2021-05-26 | Vorwerk & Co. Interholding GmbH | Method for adapting a heating output of at least one heating element of a domestic appliance |
| CN108151324A (en) * | 2017-12-15 | 2018-06-12 | 电子科技大学中山学院 | Control method of instant water heater |
| CN108954482A (en) * | 2018-05-29 | 2018-12-07 | 广东美的环境电器制造有限公司 | A kind of control method, device and computer readable storage medium |
| CN110857795B (en) * | 2018-08-24 | 2022-07-08 | 广东松下环境***有限公司 | Heating ventilator and control method thereof |
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| CN109442566A (en) * | 2018-11-06 | 2019-03-08 | 佛山市顺德区立创电子有限公司 | A kind of energy-efficient electric heater and its control method |
| CN109708194B (en) * | 2019-02-22 | 2023-07-18 | 珠海格力电器股份有限公司 | Power stepless regulating method and regulating system, electric heater and temperature regulating method thereof |
| CN110658379B (en) * | 2019-10-09 | 2022-03-04 | 广东美的制冷设备有限公司 | Power detection method and device of reversing assembly, air conditioner and storage medium |
| CN111140910A (en) * | 2019-12-30 | 2020-05-12 | 广东美控电子科技有限公司 | Temperature control method, system and terminal of intelligent variable-frequency heating |
| CN111664501B (en) * | 2020-06-05 | 2021-08-13 | 吴美君 | Remote control method of intelligent electric floor heating system based on Internet of things |
| CN112413719B (en) * | 2020-11-27 | 2022-03-01 | 珠海格力电器股份有限公司 | Heater control method, device, computer equipment and storage medium |
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