CN109708194B - Power stepless regulating method and regulating system, electric heater and temperature regulating method thereof - Google Patents
Power stepless regulating method and regulating system, electric heater and temperature regulating method thereof Download PDFInfo
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- CN109708194B CN109708194B CN201910132405.3A CN201910132405A CN109708194B CN 109708194 B CN109708194 B CN 109708194B CN 201910132405 A CN201910132405 A CN 201910132405A CN 109708194 B CN109708194 B CN 109708194B
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Abstract
The invention relates to a power stepless regulating method and regulating system, an electric heater and a temperature regulating method thereof, wherein the power stepless regulating method comprises the following steps: acquiring an absolute value DeltaT of a temperature difference between an ambient temperature value T1 and a preset temperature value T2; obtaining a current coefficient K according to a temperature difference absolute value delta T, wherein the current coefficient K increases with the decrease of the temperature difference absolute value delta T, and the rate delta K of the current coefficient K increases gradually increases with the decrease of the temperature difference absolute value delta T; and adjusting an output current value I according to the absolute temperature difference value delta T and the change rule of the current coefficient K, and further adjusting an output power value P, so that the ambient temperature gradually approaches to a preset temperature, and the condition that the temperature is shifted greatly in the temperature adjusting process is effectively avoided.
Description
Technical Field
The invention relates to the field of electric appliances, in particular to a power stepless regulating method, a power stepless regulating system, an electric heater temperature regulating method and an electric heater.
Background
With the improvement of living standard of people, the electric heater is widely used as a heating device. A plurality of heating elements are generally arranged in the electric heater, and the heating temperature of the electric heater is regulated by regulating the number of the heating elements participating in heating in the use process. In order to reduce energy consumption and use cost as much as possible, a temperature setting function is provided in a common electric heater, heating is stopped when the temperature reaches a set value, and the electric heater is reheated when the temperature is lower than the set value by a certain range, and the heating body is frequently switched on and off so as to change the heating temperature, so that the comfort of use of a user is poor.
Disclosure of Invention
Based on this, it is necessary to provide a power stepless adjustment method, a power stepless adjustment system, an electric heater temperature adjustment method and an electric heater to improve the comfort of the user.
A method of stepless power regulation comprising the steps of:
acquiring an absolute value DeltaT of a temperature difference between an ambient temperature value T1 and a preset temperature value T2;
obtaining a current coefficient K according to a temperature difference absolute value delta T, wherein the current coefficient K increases with the decrease of the temperature difference absolute value delta T, and the rate delta K of the current coefficient K increases gradually increases with the decrease of the temperature difference absolute value delta T;
and adjusting an output current value I according to the absolute temperature difference value delta T and the change rule of the current coefficient K, and further adjusting an output power value P, so that the ambient temperature gradually approaches to a preset temperature.
The above scheme provides a power stepless regulation method, in order to make the ambient temperature approach to the preset temperature, when the difference between the ambient temperature value T1 and the preset temperature value T2 is detected, the current coefficient K is obtained through the absolute value Δt of the temperature difference between the ambient temperature value T1 and the preset temperature value T2, and then the current value I is calculated according to the absolute value Δt of the temperature and the current coefficient K, so as to obtain the output power value P. In the actual regulation process, when the ambient temperature is greater than the preset temperature, the current value I calculated by the absolute temperature DeltaT and the current coefficient K is smaller, so that the output power value is reduced, and the ambient temperature is reduced. However, during the temperature decrease process, the absolute temperature difference Δt is gradually reduced, the current coefficient K is gradually increased, and the increasing rate Δk of the current coefficient K is gradually increased as the absolute temperature difference Δt is reduced, and the output current value I is changed according to the absolute temperature difference Δt and the change rule of the current coefficient K, thereby realizing the stepless adjustment of the output power value P. When the ambient temperature is greater than the preset temperature, the current value I calculated by the absolute temperature Δt and the current coefficient K is greater, so that the output power value is increased and the ambient temperature is increased. In the process of increasing the ambient temperature, the absolute temperature difference DeltaT is gradually reduced, the current coefficient K is gradually increased, the increasing speed DeltaK of the current coefficient K is gradually increased along with the reduction of the absolute temperature difference DeltaT, and the output current value I is changed according to the change rule of the absolute temperature difference DeltaT and the current coefficient K, so that the stepless regulation of the output power value P is realized. By means of stepless regulation of the output power value, the environment temperature does not have larger temperature fluctuation when approaching to the preset temperature.
In one embodiment, the power stepless adjustment method further comprises the following steps:
the absolute value Deltat of the temperature difference is obtained once at intervals Deltat.
In one embodiment, the output current value i= Δt×k, and the output power value p=i 2 X R, wherein R is a resistance value.
In one embodiment, when the ambient temperature value T1 is greater than the preset temperature value T2, the absolute temperature difference Δt= Δt1=t1-T2, and the current coefficient k=k1;
when the environmental temperature value T1 is smaller than the preset temperature value T2, the absolute temperature difference Δt= Δt2=t2-T1, the current coefficient k=k2, and when Δt1= Δt2, K2 > K1.
In one embodiment, when the ambient temperature value T1 is greater than the preset temperature value T2, the output current value I is less than or equal to 3A.
The power stepless regulating system comprises a control module, a current regulating device and an output power module, wherein the control module is electrically connected with the current regulating device, and the current regulating device is electrically connected with the output power module;
the control module is used for obtaining a temperature difference absolute value delta T between an ambient temperature value T1 and a preset temperature value T2, obtaining a current coefficient K according to the temperature difference absolute value delta T, wherein the current coefficient K increases along with the decrease of the temperature difference absolute value delta T, the increasing speed delta K of the current coefficient K gradually increases along with the decrease of the temperature difference absolute value delta T, and then calculating the corresponding current value I according to the temperature difference absolute value delta T and the current coefficient K, and sending a corresponding electric signal to the current regulating device;
the current adjusting module adjusts the current input into the output power module according to the received electric signal, and the output power module adjusts the output power according to the current.
The above scheme provides a power stepless regulation system, by adopting the control module, when in use, the steps are executed according to the method for obtaining the absolute value of the temperature difference and the current coefficient in the power stepless regulation method in any embodiment, and finally, corresponding electric signals are sent to the current regulation device according to the magnitude of the calculated current value I, and the current regulation module regulates the magnitude of the current input into the output power module according to the received electric signals, so that the stepless regulation of the output power value is realized, and the temperature stirring is smaller when the ambient temperature approaches to the preset temperature, thereby improving the use comfort.
In one embodiment, the power stepless regulation system further includes a temperature detection module and an input module, the temperature detection module and the input module are both electrically connected with the control module, the temperature detection module is used for detecting an ambient temperature and transmitting an ambient temperature value T1 to the control module, and the input module is used for receiving a preset temperature value and transmitting a preset temperature value T2 to the control module.
In one embodiment, the power stepless regulation system further comprises a display module for displaying the ambient temperature value T1 and a preset temperature value T2.
The temperature regulating method of the electric heater comprises the following steps:
acquiring an absolute value DeltaT of a temperature difference between an ambient temperature value T1 and a preset temperature value T2;
obtaining a current coefficient K according to a temperature difference absolute value delta T, wherein the current coefficient K increases with the decrease of the temperature difference absolute value delta T, and the increasing speed delta K of the current coefficient K gradually becomes larger;
and adjusting the current input into the heating element of the electric heater according to the absolute value delta T of the temperature difference and the change rule of the current coefficient K, so as to adjust the heating temperature of the heating element.
The above scheme provides a temperature regulation method for an electric heater, when the ambient temperature is different from the preset temperature, an absolute temperature DeltaT of a temperature difference between an ambient temperature value T1 and a preset temperature value T2 is obtained, then a current coefficient K is obtained according to the absolute temperature DeltaT, and further the current magnitude of the electric heater is obtained by calculation according to the absolute temperature DeltaT and the current coefficient K, so that the heating temperature of the heating element is reduced, the ambient temperature approaches the preset temperature, and the absolute temperature DeltaT is gradually reduced. In the process of gradually reducing the absolute temperature difference value delta T, the current coefficient K is increased along with the reduction of the absolute temperature difference value delta T, the increasing speed delta K of the current coefficient K is gradually increased, and the current of a heating element input into the electric heater is determined by the absolute temperature difference value delta T and the current coefficient, so that stepless regulation of the heating element power is realized, the heating temperature of the heating element is prevented from being stirred greatly in the process of changing, and a user does not feel sudden change of the ambient temperature, so that the use comfort is improved.
In one embodiment, the ambient temperature value T1 is obtained after deviation correction for the temperature obtained by the temperature sensing bulb in the electric heater.
In one embodiment, the ambient temperature value T1 is an ambient temperature 1m from the electric heater.
In one embodiment, the electric heater temperature adjustment method further includes the following steps:
judging the magnitude between the environmental temperature value T1 and the preset temperature value T2;
when the environmental temperature value T1 is smaller than the preset temperature value T2, the current of a heating element of the electric heater is adjusted according to the absolute temperature difference value DeltaT and the change rule of the current coefficient K, so that the heating temperature of the heating element is increased;
when the environmental temperature value T1 reaches the preset temperature value T2, maintaining the current heating temperature to work;
when the environmental temperature value T1 is larger than the preset temperature value T2, the current of the heating element of the electric heater is adjusted according to the absolute temperature difference value DeltaT and the change rule of the current coefficient K, so that the current of the heating element of the electric heater is smaller than or equal to 3A, and the heating temperature of the heating element is reduced.
In one embodiment, the step of determining the magnitude between the ambient temperature value T1 and the preset temperature value T2 is triggered at specific intervals.
The electric heater comprises a control unit, a current regulator and a heating body, wherein the control unit is electrically connected with the current regulator, the current regulator is connected with the heating body in parallel, the control unit can obtain an output current value I by adopting the electric heater temperature regulation method and send a corresponding electric signal to the current regulator, and the current regulator regulates the current input into the heating body according to the electric signal sent by the control unit.
The above scheme provides an electric heater, and in the use, when ambient temperature does not accord with preset temperature, the control unit obtains output current value I according to the electric heater temperature regulation method, and the current regulator adjusts the current magnitude of input to the heating element according to the electric signal of the control unit, thereby adjusting the heating temperature of the heating element, and enabling the ambient temperature to gradually approach to the preset temperature. In the process that the ambient temperature approaches to the preset temperature, the control unit adopts the electric heater temperature adjusting method to realize stepless adjustment of the power of the heating body, the heating temperature of the heating body cannot be stirred greatly in the process of changing, and further a user cannot feel sudden changes of the ambient temperature, so that the use comfort is improved.
In one embodiment, the heating elements are multiple, the heating elements are connected in parallel, and each heating element is connected in parallel with the current regulator.
In one embodiment, the electric heater further comprises a display, and the display is electrically connected with the control unit and is used for displaying the current ambient temperature and the preset temperature.
Drawings
FIG. 1 is a flow chart of a power stepless adjustment method according to the present embodiment;
FIG. 2 is a schematic diagram of a power stepless regulation system according to the present embodiment;
fig. 3 is a schematic diagram of the electric heater according to the present embodiment;
fig. 4 is a schematic structural diagram of the electric heater according to the present embodiment.
Reference numerals illustrate:
10. electric heater, 11, control unit, 12, current regulator, 13, heat-generating body, 14, display.
Detailed Description
As shown in fig. 1, in one embodiment, a power stepless adjustment method is provided, including the steps of:
acquiring an absolute value DeltaT of a temperature difference between an ambient temperature value T1 and a preset temperature value T2; when the ambient temperature is greater than the set temperature, the absolute value of the temperature difference Δt=t1-T2; when the ambient temperature is less than the preset temperature, the absolute value of the temperature difference Δt=t2-T1.
Obtaining a current coefficient K according to a temperature difference absolute value delta T, wherein the current coefficient K increases with the decrease of the temperature difference absolute value delta T, and the rate delta K of the current coefficient K increases gradually increases with the decrease of the temperature difference absolute value delta T;
and adjusting an output current value I according to the absolute temperature difference value delta T and the change rule of the current coefficient K, and further adjusting an output power value P, so that the ambient temperature gradually approaches to a preset temperature.
In order to achieve the corresponding temperature regulation effect, when the ambient temperature is higher than the preset temperature, in order to reduce the ambient temperature, the current value I obtained according to the absolute value DeltaT of the temperature difference and the current coefficient K is smaller, for example, smaller than 3A, i.e. the heat which can be provided is lower, and only the whole electrified state is maintained; when the ambient temperature is smaller than the preset temperature, in order to raise the ambient temperature, the current value I obtained according to the absolute value Δt of the temperature difference and the current coefficient K is larger, that is, the heat provided by energizing is higher, so that the ambient temperature is raised and gradually approaches to the preset temperature. That is, although the current coefficient K increases as the absolute value Δt of the temperature difference decreases and the rate at which the current coefficient K increases as the absolute value Δt of the temperature difference decreases becomes larger, in both cases the numerical relationship between the current coefficient K and the absolute value Δt of the temperature difference is different. When the ambient temperature is higher than the preset temperature, the current value I is in a lower state due to the magnitude of the current coefficient K and the magnitude of the absolute value DeltaT of the temperature difference, but when the ambient temperature is higher than the preset temperature, the current value I obtained by the current coefficient K and the absolute value DeltaT of the temperature difference is larger, the corresponding power is larger, and the effect of improving the ambient temperature can be achieved. If the current coefficient when the environmental temperature value T1 is greater than the preset temperature value T2 is defined as K1, the absolute value of the temperature difference is Δt1=t1-T2, the current coefficient when the environmental temperature value T1 is less than the preset temperature value T2 is defined as K2, and the absolute value of the temperature difference is Δt2=t2-T1, K2 > K1 when Δt1= Δt2.
In order to make the ambient temperature approach to the preset temperature, when the ambient temperature value T1 and the preset temperature value T2 are not equal, the current coefficient K is obtained through the absolute value DeltaT of the temperature difference between the ambient temperature value T1 and the preset temperature value T2, and then the current value I is calculated according to the absolute value DeltaT of the temperature and the current coefficient K, so that the output power value P is obtained. In the actual regulation process, when the ambient temperature is greater than the preset temperature, the current value I calculated by the absolute temperature DeltaT and the current coefficient K is smaller, so that the output power value is reduced, and the ambient temperature is reduced. However, during the temperature decrease process, the absolute temperature difference Δt is gradually reduced, the current coefficient K is gradually increased, and the increasing rate Δk of the current coefficient K is gradually increased as the absolute temperature difference Δt is reduced, and the output current value I is changed according to the absolute temperature difference Δt and the change rule of the current coefficient K, thereby realizing the stepless adjustment of the output power value P. When the ambient temperature is greater than the preset temperature, the current value I calculated by the absolute temperature Δt and the current coefficient K is greater, so that the output power value is increased and the ambient temperature is increased. In the process of increasing the ambient temperature, the absolute temperature difference DeltaT is gradually reduced, the current coefficient K is gradually increased, the increasing speed DeltaK of the current coefficient K is gradually increased along with the reduction of the absolute temperature difference DeltaT, and the output current value I is changed according to the change rule of the absolute temperature difference DeltaT and the current coefficient K, so that the stepless regulation of the output power value P is realized. By means of stepless regulation of the output power value, the environment temperature does not have larger temperature fluctuation when approaching to the preset temperature.
Further, in the stepless adjustment process, the detection and acquisition process of the environmental temperature value T1 is implemented at intervals of a certain time, for example, the environmental temperature value T1 is detected every minute, and the detected environmental temperature value T1 is compared with a preset temperature value, so as to finally obtain the power which should be output at the moment. Namely, the absolute value Deltat of the temperature difference is obtained once every interval time Deltat, and the change process of the absolute value of the temperature difference is detected, so that the stepless regulation of the output power is realized.
Specifically, in one embodiment, the relationship between the output current value I, the output power value P, the current coefficient K, and the absolute value Δt of the temperature difference is: the output current value i= Δt×k, the output power value p=i 2 X R, wherein R is a resistance value.
Further, as shown in fig. 2, in another embodiment, a power stepless regulation system is provided, which includes a control module, a current regulation device and an output power module, wherein the control module is electrically connected with the current regulation device, and the current regulation device is electrically connected with the output power module;
the control module is used for obtaining a temperature difference absolute value delta T between an ambient temperature value T1 and a preset temperature value T2, obtaining a current coefficient K according to the temperature difference absolute value delta T, wherein the current coefficient K increases along with the decrease of the temperature difference absolute value delta T, the increasing speed delta K of the current coefficient K gradually increases along with the decrease of the temperature difference absolute value delta T, and then calculating the corresponding current value I according to the temperature difference absolute value delta T and the current coefficient K, and sending a corresponding electric signal to the current regulating device;
the current adjusting module adjusts the current input into the output power module according to the received electric signal, and the output power module adjusts the output power according to the current.
The above scheme provides a power stepless regulation system, by adopting the control module, when in use, the steps are executed according to the method for obtaining the absolute value of the temperature difference and the current coefficient in the power stepless regulation method in any embodiment, and finally, corresponding electric signals are sent to the current regulation device according to the magnitude of the calculated current value I, and the current regulation module regulates the magnitude of the current input into the output power module according to the received electric signals, so that the stepless regulation of the output power value is realized, and the temperature stirring is smaller when the ambient temperature approaches to the preset temperature, thereby improving the use comfort.
Specifically, in one embodiment, the power stepless regulation system further includes a temperature detection module and an input module, where the temperature detection module and the input module are both electrically connected with the control module. The temperature detection module transmits the detected ambient temperature value T1 to the control module, and the input module is used for receiving a preset temperature value and transmitting a preset temperature value T2 to the control module.
After a user presets a preset temperature value T2, the temperature detection module detects the environmental temperature once at intervals, the detected environmental temperature value T1 is sent to the control module, and the control module calculates the output power at each moment according to the detected environmental temperature value T1, so that stepless power regulation is realized.
In order to make the change process of the ambient temperature more visual, a display module can be further arranged for displaying the ambient temperature value T1 and the preset temperature value T2 at each moment.
Further, in another embodiment, there is provided a temperature adjustment method of an electric heater, including the steps of:
acquiring an absolute value DeltaT of a temperature difference between an ambient temperature value T1 and a preset temperature value T2;
obtaining a current coefficient K according to a temperature difference absolute value delta T, wherein the current coefficient K increases with the decrease of the temperature difference absolute value delta T, and the increasing speed delta K of the current coefficient K gradually becomes larger;
and adjusting the current input into the heating element 13 of the electric heater 10 according to the absolute value DeltaT of the temperature difference and the change rule of the current coefficient K, and further adjusting the heating temperature of the heating element 13.
The above scheme provides a temperature regulation method for an electric heater, when the ambient temperature is different from the preset temperature, the absolute value Δt of the temperature difference between the ambient temperature value T1 and the preset temperature value T2 is obtained, then the current coefficient K is obtained according to the absolute value Δt of the temperature difference, and further the current magnitude of the heating element 13 input into the electric heater 10 is obtained by calculation according to the absolute value Δt of the temperature difference and the current coefficient K, so that the heating temperature of the heating element 13 is reduced, and the ambient temperature approaches the preset temperature, i.e., the absolute value Δt of the temperature difference is gradually reduced. In the process of gradually decreasing the absolute value DeltaT of the temperature difference, the current coefficient K increases along with the decrease of the absolute value DeltaT of the temperature difference, the increasing speed DeltaK of the current coefficient K gradually increases, and the current of the heating element 13 input into the electric heater 10 is determined by the absolute value DeltaT of the temperature difference and the current coefficient, so that stepless adjustment of the power of the heating element 13 is realized, the heating temperature of the heating element 13 is not stirred greatly in the changing process, and a user does not feel sudden changes of the ambient temperature, so that the use comfort is improved.
By adopting a stepless regulation mode, the electric heater 10 does not need to change the number of the heating elements 13 participating in heating in the temperature change process, and directly changes the output power of each heating element 13 through stepless regulation, so that the temperature regulation is realized, and the use comfort of a user is improved.
Specifically, the relationship between the magnitude of the current in the heating element 13 of the electric heater 10 and the absolute value Δt of the temperature difference and the current coefficient K is: electric powerThe current value i= Δt×k. Further, the output power p=i of the heating element 13 of the electric heater 10 2 X R, wherein R is the resistance value of the heat-generating body 13.
Further, in one embodiment, the ambient temperature value T1 is obtained after deviation correction for the temperature obtained by the temperature sensing bulb in the electric heater 10. Therefore, the absolute value DeltaT of the temperature difference obtained through calculation is more in line with the actual experience of the user. The temperature value detected by the temperature sensing bulb of the general electric heater 10 is different from the temperature value actually sensed by the user, so that the temperature value T1 of the environment after deviation correction is used as the basis of the temperature adjustment process, and the adjustment process can be more in line with the actual situation.
For example, in one embodiment, the ambient temperature value T1 is the ambient temperature at 1m from the electric heater. The preset temperature set by a general user is the temperature expected to be sensed by the user, but the temperature detected by the temperature sensing bag of the electric heater 10 is the temperature of the electric heater 10 when the electric heater generates heat, and the temperature is different from the actual temperature sensed by the user, and the temperature adjusting process can be closer to the user requirement by taking the ambient temperature at the position 1m away from the electric heater as the ambient temperature value T1 during temperature adjustment, so that the user experience is further improved.
Of course, if the electric heater 10 is in actual use, when the space between the user and the electric heater 10 is specific based on the environmental factors, the environmental temperature value T1 may be used as the basis for calculating the absolute value of the temperature difference after corresponding deviation correction. The deviation correction herein means that the ambient temperature value T1 is obtained by correcting the temperature value detected by the temperature sensing bulb of the electric heater 10 by a certain difference under each temperature environment, but the corrected difference may be different under the condition of different ambient temperature values T1, that is, when the temperature values detected by the temperature sensing bulb of the electric heater 10 are different, the difference between the ambient temperature at the position 1m away from the electric heater 10 and the temperature value detected by the electric heater 10 is different, but the ambient temperature value T1 used for calculating the absolute value of the temperature difference is the ambient temperature value at the position 1m away from the electric heater regardless of the change.
Further, in one embodiment, the method for adjusting the temperature of the electric heater 10 further includes the following steps:
judging the magnitude between the environmental temperature value T1 and the preset temperature value T2;
when the environmental temperature value T1 is smaller than the preset temperature value T2, the current of the heating element 13 of the electric heater 10 is adjusted according to the change rule of the absolute temperature difference Δt and the current coefficient K, so as to increase the heating temperature of the heating element 13, at this time, the calculation relationship between the current coefficient K and the absolute temperature difference Δt can enable the current input into the heating element 13 to be larger, and the heating element 13 can generate higher heat to increase the environmental temperature;
when the environmental temperature value T1 reaches the preset temperature value T2, maintaining the current heating temperature to work;
when the environmental temperature value T1 is greater than the preset temperature value T2, the current of the heating element 13 of the electric heater 10 is adjusted according to the absolute temperature difference Δt and the change rule of the current coefficient K, so that the current of the heating element 13 of the electric heater 10 is less than or equal to 3A, and the heating temperature of the heating element 13 is reduced.
In addition, the temperature judgment process can be triggered once within a certain time interval, so that the temperature of the electric heater 10 is less shifted, and the use comfort of a user is further improved.
Further, as shown in fig. 3, in yet another embodiment, there is provided an electric heater 10, including a control unit 11, a current regulator 12 and a heating element 13, the control unit 11 is electrically connected with the current regulator 12, the current regulator 12 is connected in parallel with the heating element 13, the control unit 11 can obtain an output current value I by adopting the above-mentioned temperature regulation method of the electric heater 10, and send a corresponding electric signal to the current regulator 12, and the current regulator 12 regulates the current input to the heating element 13 according to the electric signal sent by the control unit 11.
The above scheme provides an electric heater 10, in the use process, when the ambient temperature does not accord with the preset temperature, the control unit 11 obtains the output current value I according to the above electric heater 10 temperature adjustment method, and the current regulator 12 adjusts the current input into the heating element 13 according to the electric signal of the control unit 11, so as to adjust the heating temperature of the heating element 13, so that the ambient temperature gradually approaches the preset temperature. In the process that the ambient temperature approaches to the preset temperature, the control unit 11 adopts the temperature adjusting method of the electric heater 10, so that the power of the heating body 13 is adjusted steplessly, the heating temperature of the heating body 13 is not stirred greatly in the process of changing, and further, a user cannot feel sudden changes of the ambient temperature, and the use comfort is improved.
Further, in one embodiment, as shown in fig. 3 and 4, the heating elements 13 are plural, and the plural heating elements 13 are connected in parallel, and each heating element 13 is connected in parallel with the current regulator 12. That is, in the using process, each heating element 13 is controlled by the control unit 11 to adjust the output power, so that the temperature adjusting process of the electric heater 10 is mainly realized through the control of the heating temperature of each heating element 13, rather than simply realized through switching the number of the electrified heating elements 13, thereby effectively avoiding the occurrence of the condition that the ambient temperature is greater in stirring and improving the comfort.
Further, in one embodiment, as shown in fig. 3, the electric heater 10 further includes a display 14, and the display 14 is electrically connected to the control unit 11, for displaying the current ambient temperature and the preset temperature.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (15)
1. A method of stepless power regulation comprising the steps of:
acquiring an absolute value DeltaT of a temperature difference between an ambient temperature value T1 and a preset temperature value T2;
obtaining a current coefficient K according to a temperature difference absolute value delta T, wherein the current coefficient K increases with the decrease of the temperature difference absolute value delta T, and the rate delta K of the current coefficient K increases gradually increases with the decrease of the temperature difference absolute value delta T;
according to the absolute temperature difference value delta T and the change rule of the current coefficient K, an output current value I is adjusted, and then an output power value P is adjusted, so that the ambient temperature gradually approaches to a preset temperature;
the output current value i= Δt×k, the output power value p=i 2 X R, wherein R is a resistance value.
2. The power stepless adjustment method of claim 1, further comprising the steps of:
the absolute value Deltat of the temperature difference is obtained once at intervals Deltat.
3. The power stepless regulation method according to claim 1 or 2, characterized in that when the ambient temperature value T1 is greater than the preset temperature value T2, the absolute value of the temperature difference Δt= Δt1 = T1-T2, the current coefficient K = K1;
when the environmental temperature value T1 is smaller than the preset temperature value T2, the absolute temperature difference Δt= Δt2=t2-T1, the current coefficient k=k2, and when Δt1= Δt2, K2 > K1.
4. A power stepless regulation method according to claim 3, characterized in that the output current value I is less than or equal to 3A when the ambient temperature value T1 is greater than the preset temperature value T2.
5. The power stepless regulating system is characterized by comprising a control module, a current regulating device and an output power module, wherein the control module is electrically connected with the current regulating device, and the current regulating device is electrically connected with the output power module;
the control module is used for obtaining a temperature difference absolute value delta T between an ambient temperature value T1 and a preset temperature value T2, obtaining a current coefficient K according to the temperature difference absolute value delta T, wherein the current coefficient K increases along with the decrease of the temperature difference absolute value delta T, the increasing speed delta K of the current coefficient K gradually increases along with the decrease of the temperature difference absolute value delta T, and then calculating the corresponding current value I according to the temperature difference absolute value delta T and the current coefficient K, and sending a corresponding electric signal to the current regulating device;
the current adjusting device adjusts the current magnitude input into the output power module according to the received electric signal, and the output power module adjusts the magnitude of output power according to the current magnitude.
6. The system of claim 5, further comprising a temperature detection module and an input module, wherein the temperature detection module and the input module are both electrically connected to the control module, the temperature detection module is configured to detect an ambient temperature and transmit an ambient temperature value T1 to the control module, and the input module is configured to receive a preset temperature value and transmit a preset temperature value T2 to the control module.
7. The power stepless regulation system of claim 5 or 6, further comprising a display module for displaying the ambient temperature value T1 and a preset temperature value T2.
8. The temperature regulating method of the electric heater is characterized by comprising the following steps of:
acquiring an absolute value DeltaT of a temperature difference between an ambient temperature value T1 and a preset temperature value T2;
obtaining a current coefficient K according to a temperature difference absolute value delta T, wherein the current coefficient K increases with the decrease of the temperature difference absolute value delta T, and the increasing speed delta K of the current coefficient K gradually becomes larger;
and adjusting the current input into the heating element of the electric heater according to the absolute value delta T of the temperature difference and the change rule of the current coefficient K, so as to adjust the heating temperature of the heating element.
9. The method for adjusting the temperature of an electric heater according to claim 8, wherein the ambient temperature value T1 is obtained by correcting a deviation of a temperature obtained by a temperature sensing bulb in the electric heater.
10. The electric heater temperature regulation method according to claim 9, wherein the ambient temperature value T1 is an ambient temperature at a distance of 1m from the electric heater.
11. The electric heater temperature regulation method according to any one of claims 8 to 10, further comprising the steps of:
judging the magnitude between the environmental temperature value T1 and the preset temperature value T2;
when the environmental temperature value T1 is smaller than the preset temperature value T2, the current of a heating element of the electric heater is adjusted according to the absolute temperature difference value DeltaT and the change rule of the current coefficient K, so that the heating temperature of the heating element is increased;
when the environmental temperature value T1 reaches the preset temperature value T2, maintaining the current heating temperature to work;
when the environmental temperature value T1 is larger than the preset temperature value T2, the current of the heating element of the electric heater is adjusted according to the absolute temperature difference value DeltaT and the change rule of the current coefficient K, so that the current of the heating element of the electric heater is smaller than or equal to 3A, and the heating temperature of the heating element is reduced.
12. The method according to claim 11, wherein the step of determining the magnitude between the ambient temperature value T1 and the preset temperature value T2 is triggered at a certain interval.
13. An electric heater (10) characterized by comprising a control unit (11), a current regulator (12) and a heating body (13), wherein the control unit (11) is electrically connected with the current regulator (12), the current regulator (12) is connected with the heating body (13) in parallel, the control unit (11) can obtain an output current value I by adopting the electric heater temperature regulation method according to any one of claims 8 to 12, and sends a corresponding electric signal to the current regulator (12), and the current regulator (12) regulates the current input into the heating body (13) according to the electric signal sent by the control unit (11).
14. The electric heater (10) of claim 13, wherein the number of heating elements (13) is plural, the plurality of heating elements (13) being connected in parallel, each heating element (13) being connected in parallel with the current regulator (12).
15. The electric heater (10) according to claim 13 or 14, further comprising a display (14), the display (14) being electrically connected to the control unit (11) for displaying a current ambient temperature and a preset temperature.
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