CN109869876B - Control method and control device for heating mode of air conditioner and air conditioner - Google Patents
Control method and control device for heating mode of air conditioner and air conditioner Download PDFInfo
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Abstract
The invention provides a control method and a control device for a heating mode of an air conditioner and the air conditioner, and relates to the technical field of air conditioner control. The control method of the heating mode of the air conditioner comprises the following steps: detecting the temperature Tn of the inner disc in the heating mode; and controlling the working frequency of the compressor and the opening state of the electric auxiliary heater according to the temperature Tn of the inner disc within the preset time. The control device of the heating mode of the air conditioner comprises a sensor and a controller. The control method and the control device for the heating mode of the air conditioner and the air conditioner solve the problem that the indoor environment temperature is too low because the temperature of the inner disc cannot reach the preset temperature and the electric auxiliary heat cannot be started.
Description
Technical Field
The invention relates to the technical field of air conditioner control, in particular to a control method and a control device for a heating mode of an air conditioner and the air conditioner.
Background
In the field of the existing air conditioner, in order to improve the heating capacity at a low temperature, the air conditioner adopts electric auxiliary heating for auxiliary heating, so that the stability of the room temperature is ensured, and comfortable experience is brought to users.
In the prior art, the conventional control mode of electric auxiliary heating is as follows: the air conditioner closes electricity preferentially and assists heat when being close to the settlement temperature, satisfy the requirement of heating through the operating frequency who improves the compressor, when external ambient temperature is higher, the effect of heating of compressor can reach user's temperature demand, but when external ambient temperature is lower, even if improve the operating frequency of compressor, the whole effect of heating of air conditioner also can not reach user's temperature demand, need open electricity and assist heat and improve the effect of heating, but the inner disc temperature descends and is still on electricity and assists on hot start temperature always, can not reach the temperature condition that electricity assisted heat opened once more, cause the air-out temperature lower, influence user comfort in use.
Disclosure of Invention
In view of the above, the present invention is directed to a method and a device for controlling a heating mode of an air conditioner, and an air conditioner, so as to solve the problem that the air conditioner cannot be turned on again after the electric auxiliary heat is turned off.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a control method of a heating mode of an air conditioner comprises the following steps: detecting the temperature Tn of the inner disc in the heating mode; and controlling the working frequency of the compressor and the opening state of the electric auxiliary heater according to the temperature Tn of the inner disc within the preset time.
Further, the control method further includes: before the temperature Tn of the inner disc is detected, detecting the outdoor environment temperature Ts, and performing first judgment; the first judgment includes: judging whether the outdoor environment temperature Ts is less than a first preset temperature value T1; and if the outdoor environment temperature Ts is less than a first preset temperature value T1, starting the electric auxiliary heater, performing second judgment on the inner disc temperature Tn, and controlling the working frequency of the compressor and the starting state of the electric auxiliary heater according to a second judgment result.
Further, the second determination includes: judging whether the temperature Tn of the inner disc is greater than a third preset temperature value T3 within the preset time; in the preset time, if the temperature Tn of the inner disc is always greater than a third preset temperature value T3, entering an intelligent control mode; wherein, the intelligent control mode comprises turning on electric auxiliary heat to reduce the working frequency of the compressor.
Further, the control method further includes, after the air conditioner enters the intelligent control mode, detecting the compressor frequency and calculating a reduction value Fs of the compressor frequency, and entering a third judgment, where the third judgment includes: judging whether the compressor frequency reduction value Fs is larger than a preset frequency value F1; and if the compressor frequency reduction value Fs is larger than a preset frequency value F1, exiting the intelligent control mode.
Further, the range of the preset frequency value F1 is: 8-12 Hz.
Further, the control method further includes the step of performing a fourth judgment on the inner disc temperature Tn after the air conditioner enters the intelligent control mode, where the fourth judgment includes: judging whether the inner disc temperature Tn is larger than a second preset temperature value T2; and if the temperature Tn of the inner disc is greater than a second preset temperature value T2, exiting the intelligent control mode.
Further, the control method of the working frequency of the compressor comprises the following steps: the working frequency of the compressor is reduced in times, and the time delta t passes in each reducing processnThe operating frequency of the compressor is reduced by Δ fnWherein n is the number of times the operating frequency of the compressor is decreased.
Compared with the prior art, the control method of the air conditioner heating mode has the following advantages:
(1) according to the control method of the heating mode of the air conditioner, the temperature Tn of the inner disc is detected in the heating mode, the working frequency of the compressor and the starting state of the electric auxiliary heat are controlled according to the temperature Tn of the inner disc in the preset time and the preset temperature, and the problem that the indoor environment temperature is too low due to the fact that the electric auxiliary heat cannot be started because the temperature Tn of the inner disc does not reach the preset temperature is solved.
(2) According to the control method of the heating mode of the air conditioner, the temperature Tn of the inner disc is detected in the heating mode, the working frequency of the compressor and the starting state of the electric auxiliary heat are controlled according to the temperature Tn of the inner disc in the preset time and the preset temperature, and the durability of the electric auxiliary heat and the corresponding relay device is effectively improved.
Another objective of the present invention is to provide a control device for heating mode of air conditioner, which comprises a sensor and a controller; the sensors comprise temperature sensors which detect the outdoor environment temperature Ts and the inner disc temperature Tn; and the controller is used for controlling the working frequency of the compressor and the starting state of the electric auxiliary heat according to the outdoor environment temperature Ts and the inner disc temperature Tn.
Further, the sensor further comprises a frequency sensor for: detecting a compressor frequency and transmitting a detection result to the controller; the controller is further configured to calculate a compressor frequency reduction value Fs, determine the compressor frequency reduction value Fs and a preset frequency value F1, and control the operating frequency of the compressor and the on-state of the electric auxiliary heater according to the determination result.
Compared with the prior art, the control device of the air-conditioning heating mode and the control method of the air-conditioning heating mode have the same advantages, and are not repeated herein.
Another object of the present invention is to provide an air conditioner, including any one of the above-mentioned control devices for heating modes of the air conditioner.
Compared with the prior art, the air conditioner and the control method of the heating mode of the air conditioner have the same advantages, and are not repeated herein.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic flow chart of a control method of a heating mode of an air conditioner according to the present invention;
FIG. 2 is a flowchart illustrating a control method of the heating mode of the air conditioner according to the present invention;
FIG. 3 is a detailed flowchart of another control method for the heating mode of the air conditioner according to the present invention;
fig. 4 is a detailed flowchart of another control method of the heating mode of the air conditioner according to the present invention;
fig. 5 is a schematic structural diagram of a control device for a heating mode of an air conditioner according to the present invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it should be noted that the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Example 1
The present embodiment provides a method for controlling an air conditioning heating mode, as shown in fig. 1, the method for controlling the air conditioning heating mode includes the following steps, S1: in the heating mode, detecting an outdoor environment temperature Ts and an inner disc temperature Tn; s2: and controlling the working frequency of the compressor and the starting state of the electric auxiliary heater according to the outdoor environment temperature Ts and the inner disc temperature Tn within the preset time.
Specifically, as shown in fig. 2, when the air conditioner is in the heating mode, detecting an outdoor environment temperature Ts, and performing a first judgment, when the outdoor environment temperature Ts is at or above a first preset temperature value T1, the air conditioner enters a conventional auxiliary heating mode, and at this time, the heat requirement can be met only by operating the compressor without turning on electric auxiliary heating, so that the electric auxiliary heating is preferentially turned off in the conventional auxiliary heating mode, and the compressor is operated to heat; when the outdoor environment temperature Ts is below a first preset temperature value T1, sufficient heat supply cannot be obtained only by means of working and heating of the compressor, at the moment, electric auxiliary heat needs to be started to meet heat requirements, after the electric auxiliary heat is started, the electric auxiliary heat is turned off due to surplus heat so as to prevent overhigh temperature, at the moment, the temperature Tn of the inner disc is detected, second judgment is carried out, if the temperature Tn of the inner disc is reduced to a third preset temperature value T3 or below within preset time, the electric auxiliary heat can be normally turned on, the air conditioner enters a conventional auxiliary heat mode, at the moment, the electric auxiliary heat does not need to be started, the heat requirements can be met only by means of working of the compressor, at the moment, the electric auxiliary heat is preferentially turned off, and the working frequency of the compressor is increased to meet the heating; if the inner disc temperature Tn is always greater than the third preset temperature value T3 within the preset time, it is indicated that the inner disc temperature Tn cannot reach the condition of electric auxiliary heating opening, the electric auxiliary heating cannot be opened all the time, and at this time, the air conditioner is controlled to enter an intelligent control mode, the electric auxiliary heating is preferentially opened, and the working frequency of the compressor is reduced. Detecting the working frequency of the compressor and calculating a frequency reduction value Fs of the compressor, carrying out third judgment, and when the working frequency reduction value Fs of the compressor is not more than a preset frequency value F1, keeping the air conditioner running in an intelligent control mode; when the working frequency reduction value Fs of the compressor reaches a preset frequency value F1, the air conditioner exits the intelligent control mode and enters a conventional auxiliary heating mode, at the moment, the electric auxiliary heating is preferentially closed, and the working frequency of the compressor is increased.
The range of the first preset temperature value T1 is 5-9 ℃, the preferred temperature value is 7 ℃, namely when the outdoor environment temperature Ts is 7 ℃ or above, the air conditioner enters a conventional auxiliary heating mode, and the heating requirement can be met only through the work of a compressor; when the outdoor environment temperature Ts is below 7 ℃, the internal tray temperature Tn needs to be judged to determine whether the air conditioner can meet the heating requirement. As a supplementary solution, the control method for determining the outdoor ambient temperature Ts and the first preset temperature value T1, and directly performing the second determination to determine the internal temperature Tn and the third preset temperature value T3 within the preset time, even if the first determination is not performed, is also within the scope of the present invention.
The third preset temperature value T3 is 44-46 ℃, preferably 45 ℃, that is, the inner disc temperature Tn reaches 45 ℃ or below, which is a prerequisite for the auxiliary heat to be turned on again, and if the inner disc temperature Tn is kept above the temperature T3 for a preset time after being reduced, it indicates that the electric auxiliary heat cannot be turned on normally, so that the air conditioner enters an intelligent control mode.
The preset time range is 20-40 min, preferably 30min, namely the temperature Tn of the inner disc is detected within 30 min. The temperature Tn of the inner disc is detected within a certain time in a limited mode, and the air conditioner can be prevented from entering an intelligent control mode when the air conditioner is powered off within a normal range.
The range of the preset frequency value F1 is 8-12 Hz, preferably 10Hz, namely when the working frequency reduction value Fs of the compressor is not more than 10Hz, the air conditioner is kept to operate in an intelligent control mode; when the working frequency reduction value Fs of the compressor reaches 10Hz or above, the situation that the electric auxiliary heating quantity is excessive is shown, the electric auxiliary heating is not needed to be started at the moment, the heating requirement can be met only by the working of the compressor, the air conditioner enters a conventional auxiliary heating mode, the electric auxiliary heating is preferentially closed, and the working frequency of the compressor is improved to meet the heating effect.
Wherein, the operating frequency of compressor improves or reduces in grades, takes the reduction process in grades as an example, and specific process is: the compressor operating frequency drops by 2Hz every 20 s. Besides the above-mentioned fractional method, it also can adopt other sectional method for raising or reducing a certain working frequency f in a certain time t, and the values of time t and frequency f under different fractions do not need to be identical, i.e. the working frequency of compressor is reduced in several times, and in every reducing process, the elapsed time delta tnThe compressor operating frequency is reduced by DeltafnWherein n is the number of times the operating frequency of the compressor is decreased. The working frequency of the compressor is increased or reduced in a segmented manner, so that the smoothness of heat supplied by the compressor is ensured, and the fluctuation of the indoor environment temperature is effectively ensured within a controllable range.
The conventional auxiliary heating mode refers to a conventional working mode of the air conditioner, in the mode, the air conditioner preferentially turns off electric auxiliary heating, and the heating effect is improved by improving the working frequency of the compressor; the intelligent control mode refers to a special working mode of the air conditioner, under the mode, the electric auxiliary heating of the air conditioner is started to heat, when the temperature Tn of the inner disc rises to the closing temperature of the electric auxiliary heating, the electric auxiliary heating is not closed, the frequency reduction treatment is preferentially carried out on the compressor, and the stability of the air outlet temperature is ensured. The power of the electric auxiliary heat is 800-1000W, preferably 1000W, and the heating efficiency is higher than that of the compressor in the heating mode, so that the heating effect is obvious after the electric auxiliary heat is started.
The intelligent control mode comprises an intelligent control mode and a control mode, wherein the intelligent control mode comprises the following steps that firstly, the electric auxiliary heat and the compressor are controlled to meet the heating effect when the condition of entering the intelligent control mode is met; and other components including the solenoid valve, the condenser and the evaporator are controlled to adapt to working conditions in different control modes. Meanwhile, the "priority on the electric auxiliary heat and the reduction of the working frequency of the compressor" in the intelligent control mode is also compared with the "priority on the electric auxiliary heat and the improvement of the working frequency of the compressor" in the conventional auxiliary heat mode, and the priority processing modes are different in the two working modes.
The control method of the air conditioner heating mode provided by the embodiment detects the inner disc temperature Tn in the heating mode, controls the working frequency of the compressor and the opening state of the electric auxiliary heater according to the inner disc temperature Tn in the preset time and the preset temperature, solves the problem that the indoor environment temperature is too low due to the fact that the electric auxiliary heater cannot be opened because the inner disc temperature Tn does not reach the preset temperature, brings comfortable experience for users, and effectively improves the durability of the electric auxiliary heater and the corresponding relay device.
Example 2
In this embodiment, based on the above embodiment 1, with reference to fig. 3, when the air conditioner is in the heating mode, detecting an outdoor environment temperature Ts, and performing a first determination, when the outdoor environment temperature Ts is at or above a first preset temperature value T1, the air conditioner enters the conventional auxiliary heating mode, and at this time, the electric auxiliary heating is not required to be turned on, and the heat requirement can be met only by operating the compressor, so that the electric auxiliary heating is preferentially turned off in the conventional auxiliary heating mode, and the compressor is operated to heat; when the outdoor environment temperature Ts is below a first preset temperature value T1, sufficient heat supply cannot be obtained only by means of working and heating of the compressor, at the moment, electric auxiliary heat needs to be started to meet heat requirements, after the electric auxiliary heat is started, the electric auxiliary heat is closed when the inner disc reaches a third preset temperature value T3 due to surplus heat, at the moment, the temperature Tn of the inner disc is detected, second judgment is carried out, if the temperature Tn of the inner disc is reduced to be below a third preset temperature value T3 within preset time, the electric auxiliary heat can be normally started, the air conditioner enters a conventional auxiliary heat mode, at the moment, the electric auxiliary heat does not need to be started, the heat requirements can be met only by means of working of the compressor, at the moment, the electric auxiliary heat is preferentially closed, and the working frequency of the compressor is increased to meet the heating effect; if the inner disc temperature Tn is always greater than the third preset temperature value T3 within the preset time, it is indicated that the inner disc temperature Tn cannot reach the condition of electric auxiliary heating opening, the electric auxiliary heating cannot be opened all the time, and at this time, the air conditioner is controlled to enter an intelligent control mode, the electric auxiliary heating is preferentially opened, and the working frequency of the compressor is reduced. Detecting the temperature Tn of the inner disc, carrying out third judgment, and when the temperature Tn of the inner disc is not more than a second preset temperature value T2, keeping the air conditioner to operate in an intelligent control mode; when the temperature Tn of the inner disc is greater than a second preset temperature value T2, the air conditioner enters a conventional auxiliary heating mode, the electric auxiliary heating is preferentially closed, and the working frequency of the compressor is increased.
The ranges and preferred settings of the first preset temperature value T1, the preset time and the preset frequency value F1 are the same as those of the previous embodiment; the operating frequency of the compressor is increased and decreased in the same manner as in the previous embodiment.
The range of the second preset temperature value T2 is 54-56 ℃, the preferred temperature value is 55 ℃, namely when the air conditioner is in the intelligent control mode, the electric auxiliary heat is preferentially started, the temperature Tn of the inner disc rises, and before the temperature Tn of the inner disc reaches 55 ℃, the air conditioner is kept in the intelligent control mode; when the temperature Tn of the inner disc reaches over 55 ℃, the air conditioner enters a conventional auxiliary heating mode, the electric auxiliary heating is preferentially closed, and the working frequency of the compressor is increased.
According to the control method for the heating mode of the air conditioner, the outdoor environment temperature Ts and the inner disc temperature Tn are detected in the heating mode, the working frequency of the compressor and the starting state of the electric auxiliary heat are controlled according to the outdoor environment temperature Ts and the inner disc temperature Tn within the preset time and the preset temperature, the problem that the indoor environment temperature is too low due to the fact that the electric auxiliary heat cannot be started because the inner disc temperature Tn does not reach the preset temperature is solved, comfortable experience is brought to users, and meanwhile the electric auxiliary heat and the durability of corresponding relay devices are effectively improved.
Example 3
In this embodiment, based on the above embodiment 2, with reference to fig. 4, when the air conditioner is in the heating mode, detecting an outdoor environment temperature Ts, and performing a first determination, when the outdoor environment temperature Ts is at or above a first preset temperature value T1, the air conditioner enters the conventional auxiliary heating mode, and at this time, the electric auxiliary heating is not required to be turned on, and the heat requirement can be met only by operating the compressor, so that the electric auxiliary heating is preferentially turned off in the conventional auxiliary heating mode, and the compressor is operated to heat; when the outdoor environment temperature Ts is below a first preset temperature value T1, sufficient heat supply cannot be obtained only by means of working and heating of the compressor, at the moment, electric auxiliary heat needs to be started to meet heat requirements, after the electric auxiliary heat is started, the electric auxiliary heat is closed when the inner disc reaches a third preset temperature value T3 due to surplus heat, at the moment, the temperature Tn of the inner disc is detected, second judgment is carried out, if the temperature Tn of the inner disc is reduced to be below a third preset temperature value T3 within preset time, the electric auxiliary heat can be normally started, the air conditioner enters a conventional auxiliary heat mode, at the moment, the electric auxiliary heat does not need to be started, the heat requirements can be met only by means of working of the compressor, at the moment, the electric auxiliary heat is preferentially closed, and the working frequency of the compressor is increased to meet the heating effect; if the inner disc temperature Tn is always greater than the third preset temperature value T3 within the preset time, it is indicated that the inner disc temperature Tn cannot reach the condition of electric auxiliary heating opening, the electric auxiliary heating cannot be opened all the time, and at this time, the air conditioner is controlled to enter an intelligent control mode, the electric auxiliary heating is preferentially opened, and the working frequency of the compressor is reduced. Detecting the inner disc temperature Tn and the frequency reduction value Fs of the compressor, and performing third judgment and fourth judgment, wherein when the working frequency reduction value of the compressor is not more than a preset frequency value F1 and the inner disc temperature Tn is not more than a second preset temperature value T2, the air conditioner is kept to operate in an intelligent control mode; when the working frequency reduction value of the compressor reaches a preset frequency value F1 or the inner disc temperature Tn is greater than a second preset temperature value T2, the air conditioner enters a conventional auxiliary heating mode, the electric auxiliary heating is preferentially closed, and the working frequency of the compressor is increased.
The control method of the air conditioner heating mode provided by this embodiment combines the determination process of the foregoing embodiment, and determines whether the air conditioner satisfies the condition for exiting from the intelligent control mode according to the inner disc temperature Tn and the compressor frequency reduction Fs, and exits from the intelligent control mode and enters into the conventional auxiliary heating mode under the condition that the heating requirement can be guaranteed without electric auxiliary heating.
Example 4
In the present embodiment, as shown in fig. 5, the control device 100 for the air-conditioning heating mode includes: the sensor 101 detects the outdoor environment temperature Ts, the inner disc temperature Tn and the compressor frequency value through a temperature sensor in the heating mode; the controller 102 determines the outdoor environment temperature Ts and a first preset temperature value T1, determines the inner disc temperature Tn and a second preset temperature value T2 and a third preset temperature value T3, calculates the compressor frequency reduction value Fs, determines the compressor frequency reduction value Fs and a preset frequency value F1, and controls the on/off and working states of the compressor and the electric auxiliary heater, thereby controlling the switching between the conventional auxiliary heating mode and the intelligent control mode.
Specifically, when the air conditioner is in the heating mode, the sensor 101 detects the outdoor environment temperature Ts, a first judgment is made, and when the outdoor environment temperature Ts is at or above a first preset temperature value T1, the controller 102 controls the air conditioner to enter the conventional auxiliary heating mode, at this time, the heat demand can be met only by the operation of the compressor without starting the electric auxiliary heating, so that the controller 102 preferentially turns off the electric auxiliary heating in the conventional auxiliary heating mode and heats by the operation of the compressor; when the outdoor environment temperature Ts is below a first preset temperature value T1, sufficient heat supply cannot be obtained only by means of working and heating of the compressor, at the moment, electric auxiliary heat needs to be started to meet heat requirements, after the electric auxiliary heat is started, the electric auxiliary heat is switched between the starting state and the closing state due to surplus heat, at the moment, the sensor 101 detects the temperature Tn of the inner disc, the detection result is transmitted to the controller 102 to carry out second judgment, the temperature Tn of the inner disc is reduced to a third preset temperature value T3 or below within preset time, the controller 102 controls the air conditioner to enter a conventional auxiliary heat mode, at the moment, the electric auxiliary heat does not need to be started, the heat requirements can be met only by means of working of the compressor, at the moment, the electric auxiliary heat is preferentially closed, and the working frequency of the compressor is increased to meet the heating effect; within the preset time, if the inner disc temperature Tn is always greater than the third preset temperature value T3, it is indicated that the inner disc temperature Tn does not reach the condition of electric auxiliary heat opening, and the electric auxiliary heat cannot be opened all the time, at this time, the controller 102 controls the air conditioner to enter the intelligent control mode, preferentially opens the electric auxiliary heat, and reduces the operating frequency of the compressor. Detecting the inner disc temperature Tn and the compressor frequency reduction value Fs through the sensor 101, and performing third judgment and fourth judgment, wherein when the working frequency reduction value of the compressor is not more than a preset frequency value F1 and the inner disc temperature Tn is not more than a second preset temperature value T2, the controller 102 controls the air conditioner to be kept in an intelligent control mode; when the operating frequency of the compressor is decreased to a preset frequency value F1 or the inner disc temperature Tn is greater than a second preset temperature value T2, the controller 102 controls the air conditioner to enter a normal auxiliary heating mode, preferentially turns off the electric auxiliary heating, and increases the operating frequency of the compressor.
The control device of the air conditioner heating mode provided by the embodiment forms the control device through the sensor and the controller, detects, judges and controls the process in each link of the control method, solves the problem that the indoor environment temperature is too low due to the fact that the inner disc temperature Tn cannot reach the preset temperature and the electric auxiliary heat cannot be started, brings comfortable experience for users, and effectively improves the durability of the electric auxiliary heat and the corresponding relay device.
Example 5
This embodiment provides an air conditioner including the electric auxiliary heat control device of embodiment 4, and the air conditioner has the same beneficial effects as the electric auxiliary heat control method and the electric auxiliary heat control device, and will not be described herein again.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. A control method for a heating mode of an air conditioner is characterized by comprising the following steps:
detecting the temperature Tn of the inner disc in the heating mode; controlling the working frequency of the compressor and the starting state of the electric auxiliary heater according to the temperature Tn of the inner disc within the preset time;
the controlling the working frequency of the compressor and the opening state of the electric auxiliary heater according to the inner disc temperature Tn within the preset time comprises the following steps: before the temperature Tn of the inner disc is detected, detecting the outdoor environment temperature Ts, and performing first judgment; the first judgment includes: judging whether the outdoor environment temperature Ts is less than a first preset temperature value T1;
if the outdoor environment temperature Ts is less than a first preset temperature value T1, performing second judgment on the inner disc temperature Tn, and controlling the working frequency of the compressor and the starting state of the electric auxiliary heat according to a second judgment result;
the second determination includes:
judging whether the temperature Tn of the inner disc is greater than a third preset temperature value T3 within the preset time;
in the preset time, if the temperature Tn of the inner disc is always greater than a third preset temperature value T3, entering an intelligent control mode;
the intelligent control mode comprises the steps of starting electric auxiliary heat, reducing the working frequency of a compressor, and reducing the working frequency of the compressor without turning off the electric auxiliary heat when the temperature Tn of the inner disc is increased to the turning-off temperature of the electric auxiliary heat.
2. The method as claimed in claim 1, further comprising detecting a compressor frequency and calculating a reduction value Fs of the compressor frequency after the air conditioner enters the intelligent control mode, and performing a third determination, wherein the third determination includes:
judging whether the compressor frequency reduction value Fs is larger than a preset frequency value F1;
and if the compressor frequency reduction value Fs is larger than a preset frequency value F1, exiting the intelligent control mode.
3. The method for controlling the heating mode of the air conditioner according to claim 2, wherein the preset frequency value F1 is in a range of 8-12 Hz.
4. The method for controlling the heating mode of the air conditioner according to claim 1, further comprising performing a fourth determination on the inner panel temperature Tn after the air conditioner enters the intelligent control mode, wherein the fourth determination comprises:
judging whether the inner disc temperature Tn is larger than a second preset temperature value T2;
and if the temperature Tn of the inner disc is greater than a second preset temperature value T2, exiting the intelligent control mode.
5. The control method of heating mode of air conditioner according to claim 1, wherein the control method of compressor operating frequency comprises: the working frequency of the compressor is reduced in times, and the time delta t passes in each reducing processnThe operating frequency of the compressor is reduced by Δ fnWherein n is the number of times the operating frequency of the compressor is decreased.
6. The control device of the heating mode of the air conditioner is characterized by comprising a sensor and a controller;
the sensors comprise temperature sensors which detect the outdoor environment temperature Ts and the inner disc temperature Tn;
the controller is used for controlling the working frequency of the compressor and the opening state of the electric auxiliary heater according to the inner disc temperature Tn within the preset time in the heating mode, and the controlling the working frequency of the compressor and the opening state of the electric auxiliary heater according to the inner disc temperature Tn within the preset time comprises the following steps: before detecting the temperature Tn of the inner disc, detecting the outdoor environment temperature Ts, and performing first judgment; the first judgment includes: judging whether the outdoor environment temperature Ts is less than a first preset temperature value T1;
if the outdoor environment temperature Ts is less than a first preset temperature value T1, performing second judgment on the inner disc temperature Tn, and controlling the working frequency of the compressor and the starting state of the electric auxiliary heat according to a second judgment result;
the second determination includes:
judging whether the temperature Tn of the inner disc is greater than a third preset temperature value T3 within the preset time;
in the preset time, if the temperature Tn of the inner disc is always greater than a third preset temperature value T3, entering an intelligent control mode;
the intelligent control mode comprises the steps of starting electric auxiliary heat, reducing the working frequency of a compressor, and reducing the working frequency of the compressor without turning off the electric auxiliary heat when the temperature Tn of the inner disc is increased to the turning-off temperature of the electric auxiliary heat.
7. A control apparatus for a heating mode of an air conditioner as set forth in claim 6, wherein said sensor further comprises a frequency sensor for: detecting a compressor frequency and transmitting a detection result to the controller;
the controller is further configured to calculate a compressor frequency reduction value Fs, determine the compressor frequency reduction value Fs and a preset frequency value F1, and control the operating frequency of the compressor and the on-state of the electric auxiliary heater according to the determination result.
8. An air conditioner characterized by comprising the control device of the heating mode of the air conditioner according to any one of claims 6 to 7.
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| CN110440395B (en) * | 2019-08-12 | 2021-07-16 | 宁波奥克斯电气股份有限公司 | Control method and system for energy-saving operation of air conditioner and air conditioner |
| CN110701729A (en) * | 2019-10-28 | 2020-01-17 | 宁波奥克斯电气股份有限公司 | Air conditioner heating control method and device, air conditioner and computer readable storage medium |
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