CN111397140A - Air conditioner control method and device and air conditioner - Google Patents
Air conditioner control method and device and air conditioner Download PDFInfo
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- CN111397140A CN111397140A CN202010288543.3A CN202010288543A CN111397140A CN 111397140 A CN111397140 A CN 111397140A CN 202010288543 A CN202010288543 A CN 202010288543A CN 111397140 A CN111397140 A CN 111397140A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
Abstract
The invention provides an air conditioner control method and device and an air conditioner, and relates to the technical field of air conditioners. The air conditioner control method comprises the following steps: a module temperature value is received, the module temperature value referring to a real-time temperature of the compressor module. And controlling the compressor module to enter a compressor module temperature control mode according to the module temperature value. And in the temperature control mode of the compressor module, receiving module temperature values at preset time intervals to obtain a plurality of module temperature values. And calculating the difference value between the temperature values of the two adjacent modules to obtain a temperature change value. And controlling the running frequency of the compressor to be reduced according to the temperature change value. The air conditioner control method, the air conditioner control device and the air conditioner can solve the problems that in the prior art, the temperature of a detection compressor module is not timely, the frequency of a control compressor is not timely reduced, indoor temperature fluctuation is caused, and comfort is poor.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner control method and device and an air conditioner.
Background
At present, when the inverter air conditioner runs at high temperature (about 40 ℃) and high frequency (close to full frequency) of a compressor, the temperature of a compressor module is often very high, and in order to protect the compressor module, the frequency of the compressor is often reduced to reduce the temperature of the module, so that the purpose of protecting the compressor module is achieved. In order to ensure the reliability of the compressor module at high temperature and high frequency or during faults (the compressor module and the refrigerant cooling module are not tightly attached and the like), the temperature of the module is mainly identified to reduce or limit the frequency, so that the compressor module is not protected due to overhigh temperature of the module, and the reliability of the system is improved.
The problem that current control exists because the discernment of compressor module temperature is not timely enough, and there is the hysteresis quality in the built-in temperature sensor detected value of module, and the compressor frequency probably can not come to reduce just too high protection of temperature or compressor frequency decline too much, leads to indoor temperature fluctuation, and the travelling comfort worsens.
Disclosure of Invention
The invention solves the problems that the temperature of a detection compressor module in the prior art is not timely, so that the frequency of a control compressor is not timely reduced, the indoor temperature fluctuates, and the comfort is poor.
In order to solve the above problems, the present invention provides an air conditioner control method for controlling an operation frequency of a compressor in a compressor module, the air conditioner control method comprising:
receiving a module temperature value, the module temperature value referring to a real-time temperature of the compressor module.
And controlling the compressor module to enter a compressor module temperature control mode according to the module temperature value.
And in the compressor module temperature control mode, receiving the module temperature values at preset time intervals to obtain a plurality of module temperature values.
And calculating the difference value between two adjacent module temperature values to obtain a temperature change value.
And controlling the running frequency of the compressor to be reduced according to the temperature change value.
The air conditioner control method provided by the invention can judge whether the compressor module enters the compressor module temperature control mode according to the module temperature value of the compressor module, and when the compressor module temperature control mode is entered, whether the temperature of the compressor module exceeds the upper limit temperature value is predicted according to the temperature variation of the compressor module, and the reduction of the operating frequency of the compressor is controlled according to the temperature variation, so that the problem that the frequency of the compressor is not reduced in time due to the lag condition that the operating frequency of the compressor is directly controlled to be reduced through the module temperature value can be avoided, the operating frequency of the compressor can be timely reduced, the temperature of the compressor module can be stably controlled, and the purpose of ensuring the stable operation of the compressor module is realized.
Optionally, the step of controlling the compressor module to enter the compressor module temperature control mode according to the module temperature value includes:
and judging whether the module temperature value is greater than or equal to a first preset temperature value or not.
And if so, entering the temperature control mode of the compressor module.
When the module temperature value is greater than the first preset temperature value, the temperature of the compressor module is shown to approach the upper limit temperature value of the operation temperature of the compressor module, and at the moment, the temperature of the compressor module needs to be regulated and controlled, so that the damage of the compressor module caused by overhigh temperature of the compressor module is avoided.
Optionally, the air conditioner control method further includes:
and in the compressor module temperature control mode, calculating the difference value between the module temperature value and a second preset temperature value every preset time to obtain a temperature difference value.
The step of controlling the operation frequency of the compressor to be decreased according to the temperature variation value includes:
and controlling the running frequency of the compressor to be reduced according to the temperature change value and the temperature difference value.
The temperature change value can represent the change trend of the temperature of the compressor module, the temperature difference value can represent the difference between the temperature of the compressor module and the working upper limit temperature value of the compressor module, and whether the temperature of the compressor module is to reach the upper limit temperature value of the normal operation of the compressor module or not can be accurately estimated according to the temperature change value and the temperature difference value. And then through the operating frequency reduction ability of controlling the compressor according to temperature variation value and temperature difference value control compressor module's temperature, avoid compressor module's temperature to rise to the condition that exceeds the upper limit temperature value, and then guarantee compressor module normal operation, improve compressor module's operating stability.
Optionally, the step of controlling the operating frequency of the compressor to be decreased according to the temperature variation value and the temperature difference value comprises:
and calculating the frequency reduction amount according to the temperature change value and the temperature difference value.
Controlling the operating frequency of the compressor to decrease the frequency decrease amount.
Optionally, in the step of calculating the frequency decrease amount according to the temperature change value and the temperature difference value, an equation for calculating the frequency decrease amount is as follows:
ΔF＝a×(ΔT-ΔTcm)+b×(V-Vt)。
wherein, Δ F represents the frequency reduction, a, b and V are all set values, Δ T is a third preset temperature value, Δ TcmIs the temperature difference, VtIs the temperature change value.
Optionally, after controlling the compressor module to enter the compressor module temperature control mode, the air conditioner control method further includes:
and judging whether the module temperature value is smaller than a fourth preset temperature value, wherein the fourth preset temperature value is a set value.
And if so, controlling the compressor module to exit the compressor module temperature control mode.
When the temperature of the compressor module is reduced to be lower than the fourth preset temperature value, the temperature of the compressor module is indicated to have a larger difference with the upper limit temperature value, the temperature of the compressor module is not easy to influence the normal operation of the compressor, and at the moment, the compressor module can be controlled to exit from the temperature control mode of the compressor module, so that the normal operation of the compressor is facilitated.
Optionally, after controlling the compressor module to enter the compressor module temperature control mode, the air conditioner control method further includes:
and when the module temperature value is less than a fifth preset temperature value for continuous preset times, controlling the compressor module to exit the compressor module temperature control mode, wherein the fifth preset temperature value is a set value.
When the module temperature value is less than the fifth preset temperature value for the continuous preset times, the temperature of the compressor module is basically kept stable and is in a state of not exceeding the upper limit temperature value, and at the moment, the compressor module can be controlled to exit from the compressor module temperature control mode, so that the compressor module can normally operate.
Optionally, after controlling the compressor module to enter the compressor module temperature control mode, the air conditioner control method further includes:
a compressor operating frequency value is received, the compressor operating frequency value referring to an operating frequency of the compressor.
And judging whether the compressor operation frequency value is the lowest operation frequency value, wherein the lowest operation frequency value refers to the lowest operation frequency of the compressor.
And if so, exiting the compressor module temperature control mode.
When the operating frequency of the compressor is reduced to the lowest operating frequency value, the operating frequency of the compressor cannot be reduced again, and at the moment, the temperature control mode of the compressor module is quitted, so that the damage of the compressor caused by the fact that the controller continuously controls the reduction of the operating frequency of the compressor is avoided, and the compressor is protected.
An air conditioning control device comprising:
and the receiving module is used for receiving the module temperature value and also used for receiving the module temperature value at preset intervals.
And the first control module is used for controlling the compressor module to enter a compressor module temperature control mode according to the module temperature value.
And the calculation module is used for calculating the difference value between two adjacent module temperature values to obtain a temperature change value.
And the second control module is used for controlling the running frequency of the compressor to be reduced according to the temperature change value.
The utility model provides an air conditioner, includes controller, compressor module and temperature-detecting device, temperature-detecting device install in the compressor module just is used for detecting the temperature of compressor module obtains the module temperature value.
The controller is electrically connected with the temperature detection device and used for receiving the module temperature value sent by the temperature detection device and executing the air conditioner control method. The air conditioner control method includes:
receiving a module temperature value, the module temperature value referring to a real-time temperature of the compressor module.
And controlling the compressor module to enter a compressor module temperature control mode according to the module temperature value.
And in the compressor module temperature control mode, receiving the module temperature values at preset time intervals to obtain a plurality of module temperature values.
And calculating the difference value between two adjacent module temperature values to obtain a temperature change value.
And controlling the running frequency of the compressor to be reduced according to the temperature change value.
The beneficial effects of the air conditioner control device and the air conditioner provided by the invention relative to the prior art are the same as the beneficial effects of the air conditioner control method provided by the invention relative to the prior art, and are not repeated herein.
Drawings
Fig. 1 is a flowchart of an air conditioner control method provided in an embodiment of the present invention;
fig. 2 is a flowchart illustrating a step S20 in the air conditioning control method according to the embodiment of the present invention;
fig. 3 is a specific flowchart of an air conditioner control method provided in an embodiment of the present invention;
fig. 4 is a flowchart illustrating details of step S51 in the air conditioning control method according to the embodiment of the present invention;
fig. 5 is a partial flowchart of an air conditioner control method provided in an embodiment of the present invention;
fig. 6 is a partial flowchart of an air conditioner control method provided in an embodiment of the present invention;
fig. 7 is a partial flowchart of an air conditioner control method provided in an embodiment of the present invention;
fig. 8 is a schematic functional block diagram of an air conditioner control device according to an embodiment of the present application.
Description of reference numerals:
10-a receiving module; 20-a first control module; 30-a calculation module; 40-a second control module.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
The embodiment provides an air conditioner, which at least comprises a compressor module, a controller and a temperature detection device. The temperature detection device is connected to the compressor module and is used for detecting the temperature of the compressor module and generating a corresponding data value. The temperature detection device is also electrically connected with the controller and used for sending a data value generated by detecting the temperature of the compressor module by the temperature detection device to the controller. The controller can control the running frequency of the compressor in the compressor module according to the received data value. The air conditioner provided in this embodiment can solve the problem that the temperature of detection compressor module in the prior art causes the control compressor to reduce the frequency untimely, thereby causing the indoor temperature to fluctuate and the comfort to worsen.
It should be noted that, in the embodiment, the compressor module has an acceptable maximum temperature value, and the compressor module can normally operate at a temperature lower than the maximum temperature value, but when the temperature of the compressor module exceeds the maximum temperature value, the compressor module is easily damaged. Optionally, in this embodiment, the maximum temperature value is 110 ℃, and it should be understood that in other embodiments, the maximum temperature value may also be other values, for example, 120 ℃, 115 ℃, or 105 ℃. Further, the upper limit value of the temperature of the compressor module is set as a second preset temperature value aiming at the maximum temperature value bearable by the compressor module, and the second preset temperature value is 4-8 ℃ lower than the maximum temperature value, namely, when the maximum temperature value is 110 ℃, the value range of the second preset temperature value is 102-106 ℃. The temperature upper limit value of the compressor module is set to be a second preset temperature value, so that the temperature of the compressor module can be in a buffer interval with the maximum temperature value when rising to the second preset temperature value, and the compressor module is prevented from being damaged due to the fact that the temperature of the compressor module directly rises to the maximum temperature value.
The controller may be a general-purpose processor, and includes a Central Processing Unit (CPU), a single chip Microcomputer (MCU), a Micro Controller Unit (MCU), a Complex Programmable logic device (CP L D), a Field Programmable Gate Array (FPGA), an Application Specific Integrated Circuit (ASIC), an embedded ARM, and other chips, and the controller may implement or execute the methods, steps, and logic blocks disclosed in the embodiments of the present invention.
In a possible implementation manner, the air conditioner may further include a memory for storing program instructions executable by the controller, for example, the air conditioner control device provided in the embodiment of the present application, where the air conditioner control device provided in the embodiment of the present application includes at least one of the program instructions stored in the memory in the form of software or firmware. The Memory may be a stand-alone external Memory, including but not limited to Random Access Memory (RAM), Read Only Memory (ROM), Programmable Read-Only Memory (PROM), Erasable Read-Only Memory (EPROM), electrically Erasable Read-Only Memory (EEPROM). The memory may also be integrated with the controller, for example, the memory may be integrated with the controller on the same chip.
Based on the air conditioner provided above, an embodiment of the application further provides an air conditioner control method, which is used for solving the problems that in the prior art, the temperature of a detection compressor module causes the frequency of a control compressor to be reduced untimely, so that the indoor temperature fluctuates and the comfort is poor. Referring to fig. 1, the air conditioner control method includes:
and step S10, receiving the module temperature value.
Wherein, the module temperature value refers to the real-time temperature of the compressor module. In this embodiment, the module temperature value is generated by the temperature detection device detecting the temperature of the compressor module, and the temperature detection device sends the module temperature value to the controller after detecting the module temperature value. The controller is operable to receive the module temperature value.
And step S20, controlling the compressor module to enter a compressor module temperature control mode according to the module temperature value.
After the controller receives the module temperature value, whether the compressor module needs to enter a compressor module temperature control mode or not is judged according to the module temperature value, so that faults caused by overhigh temperature of the compressor module are avoided.
Alternatively, referring to fig. 2, step S20 includes:
step S21, determining whether the module temperature value is greater than or equal to a first preset temperature value.
The first preset temperature value is a value preset according to a second preset temperature value, the first preset temperature value is smaller than the second preset temperature value, and optionally, the first preset temperature value is 10-15 ℃ smaller than the second preset temperature value.
And step S22, if yes, entering a compressor module temperature control mode.
That is, when the temperature detection device detects that the temperature of the compressor module rises to a first preset temperature value, the controller controls the air conditioner to enter a compressor module temperature control mode so as to control the temperature of the compressor module and avoid damage caused by overhigh temperature of the compressor module. When the temperature of the compressor module reaches the first preset value, the temperature of the compressor module is indicated to begin to approach the upper limit temperature value of the compressor module, namely the second preset temperature value, and the compressor module needs to be controlled to avoid the temperature of the compressor module from rising to exceed the second preset temperature value or even exceed the maximum temperature value, so that the compressor is protected.
Of course, if the determination result in step S21 is negative, the operation of the air conditioner is controlled according to the initial operation state.
Referring to fig. 1, in step S30, in the compressor module temperature control mode, the module temperature values are received at predetermined time intervals to obtain a plurality of module temperature values.
That is, when the controller determines that the compressor module starts to operate the compressor module temperature control mode according to the module temperature value, the temperature detection device sends the module temperature values to the controller in sequence at intervals of preset time, and the controller receives one module temperature value at intervals of preset time and can receive a plurality of module temperature values.
And step S40, calculating the difference between the temperature values of the two adjacent modules to obtain a temperature change value.
Wherein, two adjacent module temperature values refer to that the temperature detection device firstly sends a module temperature value to the controller, and then the second module temperature value and the last module temperature value sent at a preset time interval are adjacent module temperature values. When the controller receives the temperature values of the two adjacent modules, the difference value of the temperature values of the two adjacent modules can be calculated, and a temperature change value is obtained. It should be noted that when the controller receives more than three module temperature values, a plurality of temperature change values can be calculated.
And step S50, controlling the running frequency of the compressor to be reduced according to the temperature change value.
The controller can judge whether the compressor module reaches the upper limit temperature value or not according to the temperature change value of the compressor module, the temperature of the compressor module can be predicted according to the change trend of the temperature of the compressor module, when the temperature change value reaches a preset condition, the temperature of the compressor module can be increased to the upper limit temperature value in a short time, at the moment, the running frequency of the compressor can be controlled to be reduced, and then the heat generated by the compressor module is reduced, so that the temperature of the compressor module is reduced. By controlling the temperature of the compressor module in this way, the problem that the indoor temperature is fluctuated and the comfort is deteriorated due to the fact that the frequency of the control compressor is not timely due to the fact that the temperature of the compressor module is not timely detected in the prior art can be avoided.
Optionally, referring to fig. 3, in this embodiment, the air conditioner control method further includes:
step S60, in the compressor module temperature control mode, calculating the difference value between the module temperature value and the second preset temperature value every preset time to obtain the temperature difference value.
Wherein, in step S30, the controller is configured to receive the plurality of module temperature values detected and sent by the temperature detecting device, and step S60 is started when the controller receives the module temperature values, that is, when the temperature detecting device detects the module temperature values of the compressor module and sends the module temperature values to the controller, the controller simultaneously calculates the difference between the module temperature values and the second preset temperature values, and optionally, step S60 may be set after step S30. That is, step S60 should precede step S50.
It should be noted that, in this embodiment, the temperature difference is equal to a difference obtained by subtracting the module temperature value from the second preset temperature value.
Further, after the controller executes step S60, step S50 specifically includes:
and step S51, controlling the running frequency of the compressor to be reduced according to the temperature change value and the temperature difference value.
The temperature variation value can represent the variation trend of the temperature of the compressor module, the temperature difference value can represent the difference between the temperature of the compressor module and the working upper limit temperature value of the compressor module, and whether the temperature of the compressor module is to reach the upper limit temperature value of the normal operation of the compressor module or not can be accurately estimated according to the temperature variation value and the temperature difference value. And then through the operating frequency reduction ability of controlling the compressor according to temperature variation value and temperature difference value control compressor module's temperature, avoid compressor module's temperature to rise to the condition that exceeds the upper limit temperature value, and then guarantee compressor module normal operation, improve compressor module's operating stability.
Optionally, referring to fig. 4, in this embodiment, step S51 includes:
and step S511, calculating the frequency reduction amount according to the temperature change value and the temperature difference value.
The formula for calculating the frequency reduction amount is as follows:
ΔF＝a×(ΔT-ΔTcm)+b×(V-Vt)；
wherein, Δ F represents the frequency reduction, a, b and V are all set values, Δ T is a third preset temperature value, Δ TcmIs a difference in temperature, VtIs a temperature change value.
It should be noted that, in this embodiment, Δ T is a difference value obtained by subtracting the first preset temperature value from the second preset temperature value. It should be understood that in other embodiments, Δ T may be other values that are manually set.
When the temperature of the compressor module is too high, it can be ensured that the temperature of the compressor module can be effectively reduced by reducing the operating frequency of the compressor, optionally, in this embodiment, the value of a is 2, it should be understood that, in other embodiments, the value of a may range from 2 to 4, that is, the value of a may also be 3, 2.5, or 4, and the like.
Since the frequency reduction amount is related to the frequency variation trend of the compressor, in order to avoid repeated fluctuation of the parameter caused by too large or too small variation, optionally, in this embodiment, the value of b is 4, it should be understood that, in other embodiments, the value of b may be 3 to 6, that is, the value of b may also be 3, 5, or 6, and the like.
In general, when the interval preset time is, the temperature variation is generally less than 8, optionally, in this embodiment, the value of V is 8, and thus the problem of excessive control caused by too much frequency reduction due to too large value of V can be avoided. It should be understood that in other embodiments, V may have a value in a range of 8-10, that is, V may also have a value of 9 or 10, etc.
And S512, controlling the running frequency of the compressor to reduce the frequency reduction amount.
That is, after the frequency reduction is calculated in step S511, the operating frequency of the compressor is controlled to reduce the value corresponding to the frequency reduction, so that the compressor can be controlled to adjust to the proper operating frequency, thereby avoiding excessive heat generated during the operation of the compressor, and further achieving the purpose of adjusting the temperature of the compressor module in time.
Optionally, referring to fig. 5, in this embodiment, after controlling the compressor module to enter the compressor module temperature control mode, the air conditioner control method further includes:
and step S71, judging whether the module temperature value is less than a fourth preset temperature value.
In this embodiment, the fourth preset temperature value is a set value, and the fourth preset temperature value refers to a lowest temperature value at which the compressor normally operates, where the fourth preset temperature value is 7 ℃ to 10 ℃ lower than the third preset temperature value.
And step S72, if yes, controlling the compressor module to exit the compressor module temperature control mode.
That is, when the temperature of compressor module reduced to be less than the fourth preset temperature value, it showed that the temperature of compressor module had great difference with the upper limit temperature value, and the temperature of compressor module was difficult to influence the normal operation of compressor, and at this moment, can control compressor module and withdraw from compressor module temperature control mode, and then the normal operation of compressor of being convenient for.
If the determination result in step S71 is negative, the compressor module temperature control mode continues to be operated.
Optionally, referring to fig. 6, in this embodiment, after controlling the compressor module to enter the compressor module temperature control mode, the air conditioner control method further includes:
and step S81, when the temperature value of the continuous preset times module is smaller than a fifth preset temperature value, controlling the compressor module to exit the temperature control mode of the compressor module.
Wherein the fifth preset temperature value is a set value, and the fifth preset temperature value is 3-5 ℃ lower than the third preset temperature value. When the module temperature value is less than the fifth preset temperature value for the continuous preset times, the temperature of the compressor module is basically kept stable and is in a state of not exceeding the upper limit temperature value, and at the moment, the compressor module can be controlled to exit from the compressor module temperature control mode, so that the compressor module can normally operate.
It should be noted that, in this embodiment, the preset number is 6, and it should be understood that, in other embodiments, the preset number may range from 3 to 10, that is, the preset number may also be 4, 5, 7, 8, or 9.
Optionally, referring to fig. 7, in this embodiment, after controlling the compressor module to enter the compressor module temperature control mode, the air conditioner control method further includes:
and step S91, receiving the compressor operation frequency value.
Wherein the compressor operation frequency value refers to an operation frequency of the compressor.
And step S92, judging whether the compressor operation frequency value is the lowest operation frequency value.
Wherein the lowest operating frequency value refers to the lowest operating frequency of the compressor, i.e., the lowest operating frequency for which the compressor is rated.
And step S93, if yes, the temperature control mode of the compressor module is exited.
When the operating frequency of the compressor is reduced to the lowest operating frequency value, the operating frequency of the compressor cannot be reduced again, and at the moment, the temperature control mode of the compressor module is quitted, so that the damage of the compressor caused by the fact that the controller continuously controls the reduction of the operating frequency of the compressor is avoided, and the compressor is protected.
Of course, if the determination result of step S92 is negative, the compressor module temperature control mode may be continuously operated at this time, so as to control the temperature of the compressor module and ensure the normal operation of the compressor module.
In summary, the air conditioner and the air conditioner control method provided in this embodiment can determine whether the compressor module enters the compressor module temperature control mode according to the module temperature value of the compressor module, and when entering the compressor module temperature control mode, predict whether the temperature of the compressor module will exceed the upper limit temperature value according to the temperature variation of the compressor module, and control the reduction of the compressor operating frequency according to the temperature variation, so as to avoid the problem that the frequency of the compressor is not reduced in time due to the lag condition that the operating frequency of the compressor is directly controlled to be reduced by the module temperature value, and further reduce the operating frequency of the compressor in time, so as to stably control the temperature of the compressor module, and achieve the purpose of ensuring the stable operation of the compressor module.
In order to execute possible steps of the air conditioner control method provided by each of the above embodiments, please refer to fig. 8, and fig. 8 shows a functional module schematic diagram of an air conditioner control device provided by an embodiment of the present application. The air conditioner control device is applied to an air conditioner, and the air conditioner control device provided by the embodiment of the application is used for executing the air conditioner control method. It should be noted that the basic principle and the technical effects of the air conditioning control device provided in the present embodiment are substantially the same as those of the above embodiments, and for the sake of brief description, no part of the present embodiment is mentioned, and reference may be made to the corresponding contents in the above embodiments.
The air conditioner control device includes a receiving module 10, a first control module 20, a calculating module 30, and a second control module 40.
The receiving module 10 is configured to receive a module temperature, and is further configured to receive the module temperature at preset time intervals.
Optionally, the receiving module 10 may be specifically configured to execute step S10 and step S30 in the above-mentioned figures, so as to achieve the corresponding technical effect.
The first control module 20 is configured to control the compressor module to enter the compressor module temperature control mode according to the module temperature value.
Optionally, the first control module 20 may be specifically configured to execute step S20 in each of the above-mentioned figures, so as to achieve the corresponding technical effect.
The calculating module 30 is configured to calculate a difference between two adjacent module temperature values, and obtain a temperature variation value.
Optionally, the calculating module 30 may be specifically configured to execute step S40 in each of the above-mentioned figures, so as to achieve the corresponding technical effect.
The second control module 40 is used for controlling the running frequency of the compressor to be reduced according to the temperature change value.
Optionally, the second control module 40 may be specifically configured to execute step S50 in each of the above-mentioned figures, so as to achieve the corresponding technical effect.
It should be noted that, in other embodiments, the first control module 20 and the second control module 40 may be integrated into one control module.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method can be implemented in other ways. The apparatus embodiments described above are merely illustrative, and for example, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present invention. In this regard, every block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, the functional modules in the embodiments of the present invention may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. An air conditioner control method for controlling an operation frequency of a compressor in a compressor module, the air conditioner control method comprising:
receiving a module temperature value, the module temperature value referring to a real-time temperature of the compressor module;
controlling the compressor module to enter a compressor module temperature control mode according to the module temperature value;
in the compressor module temperature control mode, receiving the module temperature values at preset time intervals to obtain a plurality of module temperature values;
calculating a difference value between two adjacent module temperature values to obtain a temperature change value;
and controlling the running frequency of the compressor to be reduced according to the temperature change value.
2. The air conditioner control method according to claim 1, wherein the step of controlling the compressor module to enter a compressor module temperature control mode according to the module temperature value comprises:
judging whether the module temperature value is greater than or equal to a first preset temperature value or not;
and if so, entering the temperature control mode of the compressor module.
3. The air conditioning control method according to claim 1, further comprising:
in the compressor module temperature control mode, calculating the difference value between the module temperature value and a second preset temperature value every preset time to obtain a temperature difference value;
the step of controlling the operation frequency of the compressor to be decreased according to the temperature variation value includes:
and controlling the running frequency of the compressor to be reduced according to the temperature change value and the temperature difference value.
4. The air conditioner control method according to claim 3, wherein the step of controlling the operation frequency of the compressor to be lowered according to the temperature variation value and the temperature difference value includes:
calculating the frequency reduction amount according to the temperature change value and the temperature difference value;
controlling the operating frequency of the compressor to decrease the frequency decrease amount.
5. The air conditioning control method according to claim 4, wherein in the step of calculating the frequency decrease amount from the temperature change value and the temperature difference value, the formula for calculating the frequency decrease amount is as follows:
ΔF＝a×(ΔT-ΔTcm)+b×(V-Vt)；
wherein, Δ F represents the frequency reduction, a, b and V are all set values, Δ T is a third preset temperature value, Δ TcmIs the temperature difference, VtIs the temperature change value.
6. The air conditioning control method according to any one of claims 1 to 5, further comprising, after controlling the compressor module to enter the compressor module temperature control mode:
judging whether the module temperature value is smaller than a fourth preset temperature value, wherein the fourth preset temperature value is a set value;
and if so, controlling the compressor module to exit the compressor module temperature control mode.
7. The air conditioning control method according to any one of claims 1 to 5, further comprising, after controlling the compressor module to enter the compressor module temperature control mode:
and when the module temperature value is less than a fifth preset temperature value for continuous preset times, controlling the compressor module to exit the compressor module temperature control mode, wherein the fifth preset temperature value is a set value.
8. The air conditioning control method according to any one of claims 1 to 5, further comprising, after controlling the compressor module to enter the compressor module temperature control mode:
receiving a compressor operating frequency value, the compressor operating frequency value referring to an operating frequency of the compressor; judging whether the compressor operation frequency value is the lowest operation frequency value or not, wherein the lowest operation frequency value refers to the lowest operation frequency of the compressor;
and if so, exiting the compressor module temperature control mode.
9. An air conditioning control device, characterized by comprising:
the receiving module is used for receiving the module temperature value and is also used for receiving the module temperature value at intervals of preset time;
the first control module is used for controlling the compressor module to enter a compressor module temperature control mode according to the module temperature value;
the calculation module is used for calculating the difference value between two adjacent module temperature values to obtain a temperature change value;
and the second control module is used for controlling the running frequency of the compressor to be reduced according to the temperature change value.
10. An air conditioner is characterized by comprising a controller, a compressor module and a temperature detection device, wherein the temperature detection device is installed on the compressor module and is used for detecting the temperature of the compressor module to obtain a module temperature value;
the controller is electrically connected with the temperature detection device, and is used for receiving the module temperature value sent by the temperature detection device and executing the air conditioner control method according to any one of claims 1 to 8.
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