CN107401817B - Variable frequency air conditioner control method and device - Google Patents
Variable frequency air conditioner control method and device Download PDFInfo
- Publication number
- CN107401817B CN107401817B CN201710816744.4A CN201710816744A CN107401817B CN 107401817 B CN107401817 B CN 107401817B CN 201710816744 A CN201710816744 A CN 201710816744A CN 107401817 B CN107401817 B CN 107401817B
- Authority
- CN
- China
- Prior art keywords
- preset
- frequency
- temperature
- energy
- saving mode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 44
- 230000002045 lasting effect Effects 0.000 claims abstract description 8
- 238000001514 detection method Methods 0.000 claims description 18
- 230000009467 reduction Effects 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 230000000977 initiatory effect Effects 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 8
- 230000008859 change Effects 0.000 abstract description 7
- 230000020169 heat generation Effects 0.000 abstract description 7
- 230000007958 sleep Effects 0.000 abstract description 5
- 230000008569 process Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
The embodiment of the invention discloses a method and a device for controlling a variable frequency air conditioner, wherein the method comprises the following steps: collecting indoor temperature and outdoor temperature according to a first preset frequency in a first energy-saving mode; detecting whether the indoor temperature and the outdoor temperature meet a preset temperature condition or not; if the preset temperature condition is met, detecting whether the time lasting for meeting the preset temperature condition reaches a first preset time or not; and if the first preset time is reached, starting a second energy-saving mode, and controlling the variable frequency air conditioner to operate according to the operating parameters in the second energy-saving mode. In the embodiment of the invention, the variable frequency air conditioner can select proper energy-saving operation parameters according to the change of indoor and outdoor temperatures, realize accurate temperature control while saving energy, and improve the comfort of users, so that the variable frequency air conditioner is more energy-saving and the users feel comfortable particularly under the condition that the energy consumption and the heat generation of the users are lower after the users sleep soundly at night.
Description
Technical Field
The invention relates to the technical field of air conditioner control, in particular to a method and a device for controlling a variable frequency air conditioner.
Background
With the continuous popularization of low-carbon and energy-saving concepts of consumers, the inverter air conditioner becomes the mainstream of the development of the energy-saving air conditioner industry, and the inverter air conditioner can control the air conversion condition in various operation processes of the air conditioner, and is the premise and the basis for improving the air conditioner efficiency and reducing the air conditioner power consumption.
The control method of the inverter air conditioner in the current market generally determines the frequency operation interval of the compressor through the building load, namely the outdoor environment temperature, and then controls the operation frequency of the compressor according to the room load, namely the temperature difference between the indoor environment temperature and the set temperature. When energy saving is needed, the energy saving is realized by increasing the indoor temperature and reducing the load of the room.
However, the energy-saving operation parameters of the above energy-saving method are fixed, and are affected by the phase current of the compressor, the temperature sensor of the condenser tube, and other devices, and thus cannot be accurately adjusted in real time according to the load condition.
Disclosure of Invention
The invention aims to provide a method and a device for controlling a variable frequency air conditioner, wherein when a user uses the variable frequency air conditioner, the variable frequency air conditioner can select proper energy-saving operation parameters according to the change of indoor and outdoor temperatures, so that the energy is saved, the temperature is accurately controlled, and the comfort of the user is improved. Particularly, under the condition that energy consumption and heat generation are low after a user sleeps well at night, the control method enables the variable frequency air conditioner to be more energy-saving and the user feels comfortable.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, an embodiment of the present invention provides a method for controlling an inverter air conditioner, including:
collecting indoor temperature and outdoor temperature according to a first preset frequency in a first energy-saving mode;
detecting whether the indoor temperature and the outdoor temperature meet a preset temperature condition or not;
if the preset temperature condition is met, detecting whether the time lasting for meeting the preset temperature condition reaches a first preset time or not;
and if the first preset time is reached, starting a second energy-saving mode, and controlling the variable frequency air conditioner to operate according to the operating parameters in the second energy-saving mode.
In a second aspect, an embodiment of the present invention provides an inverter air conditioner control device, including:
the temperature acquisition module is used for acquiring indoor temperature and outdoor temperature according to a first preset frequency in a first energy-saving mode;
the first detection module is used for detecting whether the indoor temperature and the outdoor temperature meet a preset temperature condition or not;
the second detection module is used for detecting whether the time lasting when the preset temperature condition is met reaches a first preset time or not when the preset temperature condition is met;
and the control module is used for starting a second energy-saving mode when the first preset time is reached and controlling the variable frequency air conditioner to operate according to the operation parameters in the second energy-saving mode.
The embodiment of the invention provides a method and a device for controlling a variable frequency air conditioner. Particularly, under the condition that energy consumption and heat generation are low after a user sleeps well at night, the control method enables the variable frequency air conditioner to be more energy-saving and the user feels comfortable.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:
fig. 1 is a flowchart of a method for controlling an inverter air conditioner according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a second energy saving mode for reducing the frequency of the compressor in the inverter air conditioner control method according to the second embodiment of the present invention;
fig. 3 is a flowchart of a control method for an inverter air conditioner according to a third embodiment of the present invention;
fig. 4 is a block diagram of an inverter air conditioner control device according to a fourth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the relevant aspects of the present invention are shown in the drawings.
Example one
Fig. 1 is a flowchart of a control method for an inverter air conditioner according to an embodiment of the present invention, where the embodiment is applicable to an energy-saving control process of the inverter air conditioner, for example, energy-saving control in a cooling process of the air conditioner, and the method may be implemented by hardware and/or software, for example, by a control unit on the inverter air conditioner. As shown in fig. 1, the method for controlling the inverter air conditioner includes the following steps:
step S101: and acquiring the indoor temperature and the outdoor temperature according to a first preset frequency in a first energy-saving mode.
The first energy-saving mode is a conventional energy-saving mode of the inverter air conditioner, the control mode and the operation parameters in the mode are as described in the background art, and reference may be made to the related technologies and parameters of the existing inverter air conditioner specifically, which is not described in detail in the embodiment of the present invention. The inverter air conditioner can be controlled to enter the first energy-saving mode through the input device, for example, the inverter air conditioner can be controlled to enter the first energy-saving mode by starting an energy-saving mode key on a remote controller. The first preset frequency is preset, and preferably, may be set to be detected every 10 seconds. The indoor temperature and the outdoor temperature are collected, preferably, by a temperature sensing device installed on the inverter air conditioner, for example, the indoor temperature is collected by a temperature sensor installed on the indoor unit, and the outdoor temperature is collected by a temperature sensor installed on the outdoor unit.
Step S102: and detecting whether the indoor temperature and the outdoor temperature meet a preset temperature condition.
Wherein the preset temperature condition is as follows: the outdoor temperature (T (outdoor)) is less than or equal to a first preset temperature (A ℃) and the indoor temperature (T (indoor)) is less than or equal to a second preset temperature (B ℃), preferably, the first preset temperature (A ℃) and the second preset temperature (B ℃) can be preset according to a large amount of experimental data, for example, factors such as indoor and outdoor temperatures, air-conditioning energy consumption and the like are comprehensively considered, and the first preset temperature (A ℃) is higher than the second preset temperature (B ℃).
Step S103: and if the preset temperature condition is met, detecting whether the time lasting until the preset temperature condition is met reaches a first preset time.
The satisfaction of the preset temperature condition is a precondition for time detection, and the first preset time may preferably be a time of continuously detecting 3 times every 10 seconds, that is, 30 seconds. When the preset temperature condition is met in step S102, timing is started, and it is detected whether the duration time reaches 30 seconds. The purpose of time detection is to stabilize the state meeting the preset temperature condition, rather than accidentally achieving the state due to the influence of external conditions, so that the misjudgment of the variable frequency air conditioner mode caused by accidentally achieving the preset temperature condition is avoided. And if the detection does not meet the preset temperature condition, returning to execute the step S101.
Step S104: and if the first preset time is reached, starting a second energy-saving mode, and controlling the variable frequency air conditioner to operate according to the operating parameters in the second energy-saving mode.
The second energy-saving mode is an ultra energy-saving (ECO) mode, and the variable frequency air conditioner is in the first energy-saving mode to judge the preset temperature condition and the first preset time on the premise of entering the second energy-saving mode. Before the second energy-saving mode is started, the variable frequency air conditioner operates according to the operating parameters in the first energy-saving mode, the energy-saving operating parameters of the variable frequency air conditioner are fixed, and the variable frequency air conditioner is influenced by devices such as phase current of a compressor, temperature sensing of a condenser pipe and the like, and cannot be accurately adjusted in real time according to the load condition; and the operation parameters of the second energy-saving mode can be adjusted in real time, so that the accurate temperature control is realized while the energy is saved, and the energy-saving effect is better than that of the first energy-saving mode. The operating parameters include, but are not limited to: fan speed, compressor frequency, throttle size (i.e., electronic expansion valve opening), etc. If the first preset time is not reached, it indicates that the step S102 detects that the preset temperature condition is met only by chance, and the misjudgment is made, so the process returns to the step S101.
The embodiment provides a control method of a variable frequency air conditioner, which selects a proper energy-saving mode and energy-saving operation parameters through the change of indoor and outdoor temperatures, realizes accurate temperature control while saving energy, and improves the comfort of users. Particularly, under the condition that energy consumption and heat generation are low after a user sleeps well at night, the control method enables the variable frequency air conditioner to be more energy-saving and the user feels comfortable.
Example two
In this embodiment, on the basis of the first embodiment, an operation process of a down-conversion air conditioner in the second energy saving mode is provided, which includes: reducing the compressor frequency; and simultaneously, collecting the indoor temperature, the outdoor temperature and the compressor frequency according to a second preset frequency, and adjusting the rotating speed of the inner fan, the rotating speed of the outer fan and the opening of the electronic expansion valve according to preset conditions and collected information.
The second preset frequency in the second energy-saving mode may be the same as or different from the first preset frequency in the first energy-saving mode, and may be specifically set according to actual needs. The preset conditions are that the rotating speed of the inner fan, the rotating speed of the outer fan, the opening of the electronic expansion valve, the outdoor temperature, the temperature difference (the difference value between the indoor temperature and the target temperature set by a user) and the frequency of the compressor are in one-to-one correspondence, and the rotating speed of the inner fan, the rotating speed of the outer fan and the opening of the electronic expansion valve are controlled in real time according to the relationship among the two conditions. The preset condition in the second energy saving mode may be stored in the form of a table, a parameter library, or the like. Preferably, the lower limit of the reduction of the rotating speed of the inner fan is a first lower limit rotating speed (Z1), the lower limit of the reduction of the rotating speed of the outer fan is a second lower limit rotating speed (Z2), and the rotating speed of the fan cannot be reduced to be lower than the lower limit rotating speed so as to ensure the normal operation of the air conditioner. The collection frequency of the indoor temperature, the outdoor temperature and the compressor frequency can be a second preset frequency, and can also be set to other frequency values. Before entering the second energy-saving mode, the rotating speed of the inner fan, the rotating speed of the outer fan and the opening degree of the electronic expansion valve are adjusted according to the operating parameters in the first energy-saving mode.
Fig. 2 is a flowchart illustrating a frequency of a compressor in a second energy saving mode of a variable frequency air conditioner control method according to a second embodiment of the present invention, as shown in fig. 2, including the following steps:
step S201: and reducing the frequency of the compressor to a first preset frequency, and maintaining the first preset frequency to operate, so that the temperature of the outer pipe of the variable frequency air conditioner is reduced to a third preset temperature.
The first preset frequency (Y1) is the lower limit of the primary frequency reduction of the compressor, and the frequency reduction is performed at this time in order to reduce the temperature of an outer pipeline of the inverter air conditioner to a third preset temperature (b ℃), so that the unstable operation of the inverter air conditioner system caused by the rapid frequency reduction of the inverter air conditioner compressor is avoided. The operation of the first preset frequency (Y1) is maintained, and the operation can be preferably maintained for a J1 time period, so that the operation of the variable frequency air conditioner is more stable, the detection is more accurate, and meanwhile, the temperature of the outer pipe can be ensured to be reduced to the third preset temperature (b ℃) within the J1 time period.
Step S202: and detecting that the temperature of the outer pipe of the variable frequency air conditioner is within the range of less than or equal to the third preset temperature for a second preset time.
The purpose of step S202 is to prevent false detection due to external influences, for example, a sudden change in external environment, which results in an instantaneous change in temperature, and the change cannot be used as a basis for determination. And entering a secondary frequency reduction stage only after the temperature (T (outer pipe)) of the outer pipe of the variable frequency air conditioner is detected to be stable within the range of less than or equal to a third preset temperature (b ℃). The second preset time (J2) is a holding time set to prevent false detection, and may be preferably 30 seconds, 60 seconds, 90 seconds, or the like.
Step S203: and reducing the frequency of the compressor again to enable the frequency of the compressor to run between the first preset frequency and a second preset frequency, wherein the second preset frequency is smaller than the first preset frequency.
The frequency of the compressor is reduced again, and meanwhile the phase current limit frequency of the compressor is not detected by the complete machine, so that the frequency of the compressor can be reduced to be lower, the frequency of the compressor is reduced, the power of the complete machine is reduced, and the whole system can save more energy. Considering that when the frequency of the compressor of the conventional air conditioner is lower than a certain threshold value, the complete machine checks the compressor phase current limit frequency to detect whether the air conditioner has a fault, in this embodiment, at the stage of reducing the frequency of the compressor again in the second energy saving mode, the complete machine is set to not check the compressor phase current limit frequency to prevent the air conditioner from mistakenly considering that the compressor is at a lower frequency in the second energy saving mode, which is caused by the possible fault of the air conditioner, and affecting the operation of the second energy saving mode.
The second preset frequency (Y2) is a lower limit of the set compressor down again, and the first preset frequency (Y1) is greater than the second preset frequency (Y2). At this time, the down-conversion operation of the compressor is completed in the second saving mode, and the compressor is kept operated between the first preset frequency (Y1) and the second preset frequency (Y2).
The operation process of the second energy-saving mode down-conversion air conditioner provided by the embodiment is through reducing the compressor frequency, and adjusts the fan rotating speed and the operation parameters such as the opening degree of the electronic expansion valve according to the indoor and outdoor temperature and the compressor frequency in real time, realizes accurate temperature control while saving energy, improves the user comfort, and is more energy-saving under the condition that the energy consumption and the heat generation are all lower after the user sleeps at night, and still can guarantee the user comfort.
EXAMPLE III
In this embodiment, on the basis of the foregoing embodiments, a flow for automatically exiting the second energy saving mode is provided, and fig. 3 is a flow chart of an inverter air conditioner control method provided in the third embodiment, as shown in fig. 3, the inverter air conditioner control method includes the following steps:
step S301: the variable frequency air conditioner runs under a first energy-saving mode according to the running parameters under the mode, and collects indoor temperature and outdoor temperature according to a first preset frequency under the first energy-saving mode.
Step S302: and detecting whether the indoor temperature and the outdoor temperature collected in the first energy-saving mode meet preset temperature conditions, namely T (outdoor) is less than or equal to A ℃ and T (indoor) is less than or equal to B ℃. If yes, the process goes to step S303, and if not, the process returns to step S301 to continue temperature acquisition.
Step S303: and detecting whether the time lasting to meet the preset temperature condition reaches a first preset time, if so, entering the step S304, and if not, returning to the step S301 to continue to collect the temperature.
Specifically, when the preset temperature condition is detected to be met for the first time, timing is started, for example, 30 seconds, and the indoor temperature and the outdoor temperature acquired each time in the 30 seconds both meet the preset temperature condition, it is considered that the time requirement is met, and a second energy saving mode which is more energy-saving can be entered. For example, the first predetermined frequency is 1 acquisition every 10 seconds, then 3 temperatures are acquired within the first predetermined time.
Step S304: and starting the second energy-saving mode, and controlling the variable frequency air conditioner to operate according to the operation parameters in the second energy-saving mode.
Step S305: and acquiring the indoor temperature and the outdoor temperature according to a second preset frequency in a second energy-saving mode.
The difference is that step S301 collects the temperature in the first energy saving mode as a basis for determining to enter the second energy saving mode, and step S305 collects the temperature in the second energy saving mode as a basis for determining to exit the second energy saving mode.
Step S306: and detecting whether the indoor temperature and the outdoor temperature collected in the second energy-saving mode meet the preset temperature condition, if so, returning to the step S305 to continue collecting the temperature, and if not, entering the step S307.
Step S306 is similar to step S302, and is used to determine whether the collected indoor temperature and the collected outdoor temperature satisfy the preset temperature condition.
Step S307: detecting whether the duration time which does not meet the preset temperature condition reaches a third preset time, if so, exiting the second energy-saving mode, starting the first energy-saving mode, and entering step S301, namely switching from the second energy-saving mode to the first energy-saving mode; if not, return to step S305 to continue to collect temperature.
Step S307 is a reverse process to step S303, step S307 is to detect whether the preset time is met when the preset temperature condition is not met, and step S303 is to detect whether the preset time is met when the preset temperature condition is met. The third preset time is preset, and may be the same as or different from the first preset time. Preferably, the third predetermined time is the same as the first predetermined time, for example, a time of 30 seconds, which is 3 consecutive detections every 10 seconds.
If the third preset time is reached, the temperature at the moment does not meet the requirement of the second energy-saving mode, so that the variable frequency air conditioner control device controls the variable frequency air conditioner to exit the second energy-saving mode and start the first energy-saving mode. If the third preset time is not reached, it indicates that the step S306 detects that the preset temperature condition is met only by chance, and the process goes back to step S305.
Further, when the inverter air conditioner operates in the second energy-saving mode, the inverter air conditioner can exit the second energy-saving mode if any one of the following conditions is met:
(1) receiving an instruction for exiting the second energy-saving mode; or
(2) Receiving a command of switching a mode or shutting down; or
(3) Any shutdown faults are detected.
And for the condition (1), when the user wants to exit the second energy-saving mode, the second energy-saving mode can be closed by pressing an energy-saving mode key on the remote controller, and the variable frequency air conditioner enters the mode before the second energy-saving mode key is turned on.
For the condition (2), when the user wants to switch to another mode or wants to turn off the power supply, a mode switching command or a power off command is issued by pressing a mode key or a power on/off key on the remote controller, for example, to switch to the dehumidification mode, and then the system is switched from the second power saving mode to the mode to be switched or directly turned off.
And for the condition (3), when the variable frequency air conditioner has a shutdown fault, the system can exit the second energy-saving mode and automatically shut down, so that accidents caused by the shutdown fault are prevented. The shutdown fault has many reasons, for example, the temperature sensing bulb has a fault, and the fault of the temperature sensing bulb further can be caused by many factors, for example, when the temperature sensing system of the tube of the indoor unit of the inverter air conditioner is detected to have a fault.
According to the control method of the variable frequency air conditioner, the first energy-saving mode and the second energy-saving mode are switched through detection of the temperature condition and the time condition, the appropriate energy-saving mode and the appropriate energy-saving operation parameters are selected, accurate temperature control is achieved while energy is saved, user comfort is improved, and particularly under the condition that energy consumption and heat generation of a user are low after the user is asleep at night, the control method of the variable frequency air conditioner is more energy-saving and enables the user to feel comfortable.
Example four
Fig. 4 is a block diagram of a control device of an inverter air conditioner according to a fourth embodiment of the present invention, where the control device can execute a control method of the inverter air conditioner according to any embodiment of the present invention, and has corresponding functional modules and beneficial effects of the execution method. As shown in fig. 4, the apparatus includes:
the temperature acquisition module 401 is configured to acquire an indoor temperature and an outdoor temperature at a first preset frequency in a first energy saving mode;
a first detecting module 402, configured to detect whether an indoor temperature and an outdoor temperature meet a preset temperature condition;
a second detecting module 403, configured to detect whether a duration of time for which a preset temperature condition is met reaches a first preset time when the preset temperature condition is met;
and the control module 404 is configured to start the second energy saving mode when the first preset time is reached, and control the variable frequency air conditioner to operate according to the operation parameters in the second energy saving mode.
The embodiment provides a variable frequency air conditioner control device, through the change of indoor outer temperature, selects suitable energy-conserving mode and energy-conserving operating parameter, realizes accurate temperature control when energy-conserving, promotes the travelling comfort. Especially, under the condition that the energy consumption and the heat generation are low after the user falls asleep at night, the air conditioner is more energy-saving, and the user still feels comfortable.
Wherein the preset temperature condition is as follows: the outdoor temperature is less than or equal to a first preset temperature, and the indoor temperature is less than or equal to a second preset temperature.
Further, the control module 404 includes:
a compressor down-conversion unit for reducing a compressor frequency;
and the adjusting unit is used for acquiring the indoor temperature, the outdoor temperature and the compressor frequency according to a second preset frequency, and adjusting the rotating speed of the inner fan, the rotating speed of the outer fan and the opening of the electronic expansion valve according to preset conditions and acquired information.
Wherein, compressor frequency demultiplier unit includes:
the first frequency reduction subunit is used for reducing the frequency of the compressor to a first preset frequency and maintaining the first preset frequency to operate so as to reduce the temperature of the outer pipe of the variable frequency air conditioner to a third preset temperature;
the time detection subunit is used for detecting that the temperature of the outer pipe of the variable frequency air conditioner lasts for a second preset time within a range of being less than or equal to a third preset temperature;
and the second frequency reduction subunit is used for reducing the frequency of the compressor again to enable the frequency of the compressor to run between the first preset frequency and a second preset frequency, wherein the second preset frequency is smaller than the first preset frequency.
Further, after entering the second energy-saving mode, each module may also control the variable frequency air conditioner to automatically exit the second energy-saving mode according to a temperature condition and a time condition, which is specifically as follows:
the temperature acquisition module 401 is further configured to acquire the indoor temperature and the outdoor temperature at a second preset frequency in a second energy saving mode;
the first detecting module 402 is further configured to detect whether the indoor temperature and the outdoor temperature collected in the second energy saving mode meet a preset temperature condition;
the second detecting module 403 is further configured to detect whether the duration time during which the preset temperature condition is not met reaches a third preset time when the indoor temperature and the outdoor temperature collected in the second energy saving mode do not meet the preset temperature condition;
the control module 404 is further configured to exit the second energy saving mode and start the first energy saving mode when a third preset time is reached.
It should be noted that, in the embodiment of the inverter air conditioner control device, the units and modules included in the embodiment are only divided according to functional logic, but are not limited to the above division, as long as the corresponding functions can be realized; for example, the device may only comprise an acquisition module and a control module, wherein the acquisition module realizes the acquisition of the temperature; the control module realizes related functions of detection, frequency reduction, regulation and the like. In addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (7)
1. A control method of a variable frequency air conditioner is characterized by comprising the following steps:
collecting indoor temperature and outdoor temperature according to a first preset frequency in a first energy-saving mode; the first energy-saving mode is to control the running frequency of the compressor according to the indoor temperature and the set temperature difference;
detecting whether the indoor temperature and the outdoor temperature meet a preset temperature condition or not;
if the preset temperature condition is met, detecting whether the time lasting for meeting the preset temperature condition reaches a first preset time or not;
if the first preset time is reached, starting a second energy-saving mode, and controlling the variable frequency air conditioner to operate according to the operating parameters in the second energy-saving mode;
controlling the variable frequency air conditioner to operate according to the operation parameters in the second energy-saving mode, wherein the method comprises the following steps:
reducing the compressor frequency; simultaneously acquiring indoor temperature, outdoor temperature and compressor frequency according to a second preset frequency, and adjusting the rotating speed of the inner fan, the rotating speed of the outer fan and the opening of the electronic expansion valve according to preset conditions and acquired information;
the reducing the compressor frequency comprises:
reducing the frequency of a compressor to a first preset frequency, and maintaining the first preset frequency to operate, so that the temperature of the outer pipe of the variable frequency air conditioner is reduced to a third preset temperature;
detecting that the temperature of the outer pipe of the variable frequency air conditioner is within the range of less than or equal to the third preset temperature and continues for a second preset time;
and reducing the frequency of the compressor again to enable the frequency of the compressor to operate between the first preset frequency and a second preset frequency, wherein the second preset frequency is smaller than the first preset frequency.
2. The method according to claim 1, characterized in that said preset temperature conditions are: the outdoor temperature is less than or equal to a first preset temperature, and the indoor temperature is less than or equal to a second preset temperature.
3. The method of claim 1, wherein after initiating the second power saving mode, the method further comprises:
collecting indoor temperature and outdoor temperature according to a second preset frequency in the second energy-saving mode;
detecting whether the indoor temperature and the outdoor temperature collected in the second energy-saving mode meet the preset temperature condition or not;
if the preset temperature condition is not met, detecting whether the time lasting when the preset temperature condition is not met reaches a third preset time or not;
and if the third preset time is reached, exiting the second energy-saving mode.
4. The method of claim 3, wherein after exiting the second power saving mode, the method further comprises: the first energy saving mode is started.
5. The utility model provides a variable frequency air conditioner controlling means which characterized in that includes:
the temperature acquisition module is used for acquiring indoor temperature and outdoor temperature according to a first preset frequency in a first energy-saving mode; the first energy-saving mode is to control the running frequency of the compressor according to the indoor temperature and the set temperature difference;
the first detection module is used for detecting whether the indoor temperature and the outdoor temperature meet a preset temperature condition or not;
the second detection module is used for detecting whether the time lasting when the preset temperature condition is met reaches a first preset time or not when the preset temperature condition is met;
the control module is used for starting a second energy-saving mode when the first preset time is reached, and controlling the variable frequency air conditioner to operate according to the operation parameters in the second energy-saving mode;
wherein the control module comprises:
a compressor down-conversion unit for reducing a compressor frequency;
the adjusting unit is used for acquiring the indoor temperature, the outdoor temperature and the compressor frequency according to a second preset frequency, and adjusting the rotating speed of the inner fan, the rotating speed of the outer fan and the opening of the electronic expansion valve according to preset conditions and acquired information;
the compressor frequency demultiplier unit comprises:
the first frequency reduction subunit is used for reducing the frequency of the compressor to a first preset frequency and maintaining the first preset frequency to operate so as to reduce the temperature of the outer pipe of the variable frequency air conditioner to a third preset temperature;
the time detection subunit is used for detecting that the temperature of the outer pipe of the variable frequency air conditioner lasts for a second preset time within a range of being less than or equal to a third preset temperature;
and the second frequency reduction subunit is used for reducing the frequency of the compressor again to enable the frequency of the compressor to run between the first preset frequency and a second preset frequency, wherein the second preset frequency is smaller than the first preset frequency.
6. The apparatus of claim 5, wherein the compressor down conversion unit comprises:
the first frequency reduction subunit is used for reducing the frequency of the compressor to a first preset frequency and maintaining the operation of the first preset frequency so as to reduce the temperature of the outer pipe of the variable frequency air conditioner to a third preset temperature;
the time detection subunit is used for detecting that the temperature of the outer pipe of the variable frequency air conditioner lasts for a second preset time within a range of less than or equal to the third preset temperature;
and the second frequency reducing subunit is used for reducing the frequency of the compressor again to enable the frequency of the compressor to run between the first preset frequency and a second preset frequency, wherein the second preset frequency is smaller than the first preset frequency.
7. The apparatus of claim 5,
the temperature acquisition module is also used for acquiring the indoor temperature and the outdoor temperature according to a second preset frequency in the second energy-saving mode;
the first detection module is further configured to detect whether the indoor temperature and the outdoor temperature collected in the second energy saving mode meet the preset temperature condition;
the second detection module is further configured to detect whether the duration time during which the preset temperature condition is not met reaches a third preset time when the indoor temperature and the outdoor temperature collected in the second energy saving mode do not meet the preset temperature condition;
and the control module is also used for exiting the second energy-saving mode when the third preset time is reached.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710816744.4A CN107401817B (en) | 2017-09-12 | 2017-09-12 | Variable frequency air conditioner control method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710816744.4A CN107401817B (en) | 2017-09-12 | 2017-09-12 | Variable frequency air conditioner control method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107401817A CN107401817A (en) | 2017-11-28 |
| CN107401817B true CN107401817B (en) | 2020-11-03 |
Family
ID=60388294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710816744.4A Active CN107401817B (en) | 2017-09-12 | 2017-09-12 | Variable frequency air conditioner control method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107401817B (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108151250B (en) * | 2017-12-26 | 2020-09-25 | 海信（山东）空调有限公司 | Variable frequency air conditioner control method and device |
| CN108050671B (en) * | 2018-01-11 | 2020-11-06 | 广东美的制冷设备有限公司 | Control method of air conditioner and air conditioner |
| CN108444142B (en) * | 2018-05-17 | 2021-02-26 | 广东美的制冷设备有限公司 | Air conditioner control method and air conditioner |
| CN108800466B (en) * | 2018-06-19 | 2021-08-20 | 广东美的制冷设备有限公司 | Control method and device of air conditioner |
| CN108518821B (en) * | 2018-06-19 | 2021-08-20 | 广东美的制冷设备有限公司 | Control method and device of air conditioner |
| CN110925959B (en) * | 2019-12-13 | 2021-10-26 | 宁波奥克斯电气股份有限公司 | Air conditioner energy-saving control method and device, air conditioner and storage medium |
| CN111609520A (en) * | 2020-05-06 | 2020-09-01 | 青岛海尔空调电子有限公司 | Control method of variable frequency air conditioner |
| CN111692713B (en) * | 2020-06-10 | 2021-08-13 | 滁州星联电子有限公司 | Energy-saving control method and system for air conditioner |
| CN111780333B (en) * | 2020-07-14 | 2021-11-05 | 珠海格力节能环保制冷技术研究中心有限公司 | Control method and device of air conditioner and air conditioner equipment |
| CN111928434A (en) * | 2020-07-31 | 2020-11-13 | 海信（山东）空调有限公司 | Control method of air conditioner |
| CN114543315B (en) * | 2020-11-25 | 2024-04-26 | 广东美的制冷设备有限公司 | Air conditioner control method, air conditioner and storage medium |
| CN113028601B (en) * | 2021-03-01 | 2022-04-08 | 珠海格力电器股份有限公司 | Air conditioner control method and device, storage medium and air conditioner |
| CN114811715A (en) * | 2022-04-27 | 2022-07-29 | 浙江中广电器集团股份有限公司 | Energy-saving control method for heat pump EVI waterless floor heating multi-split air conditioner |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216911A (en) * | 2013-04-10 | 2013-07-24 | 广东美的制冷设备有限公司 | Inverter air conditioner and energy-saving operation control method thereof |
| CN103234257A (en) * | 2013-04-17 | 2013-08-07 | 广东美的制冷设备有限公司 | Inverter air conditioner and energy-saving control method for improving total operation energy efficiency of inverter air conditioner |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1892129A (en) * | 2005-07-07 | 2007-01-10 | 乐金电子(天津)电器有限公司 | Refrigeration running method of air conditioner |
| JP5127871B2 (en) * | 2010-04-09 | 2013-01-23 | 三菱電機株式会社 | Air conditioning system |
| CN105135617B (en) * | 2015-09-07 | 2018-01-23 | 珠海格力电器股份有限公司 | Control method, the device and system of the running frequency of convertible frequency air-conditioner |
| CN106895541B (en) * | 2015-12-18 | 2019-05-10 | 奥克斯空调股份有限公司 | A kind of energy-saving control method under air conditioner refrigeration mode based on users'comfort |
-
2017
- 2017-09-12 CN CN201710816744.4A patent/CN107401817B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216911A (en) * | 2013-04-10 | 2013-07-24 | 广东美的制冷设备有限公司 | Inverter air conditioner and energy-saving operation control method thereof |
| CN103234257A (en) * | 2013-04-17 | 2013-08-07 | 广东美的制冷设备有限公司 | Inverter air conditioner and energy-saving control method for improving total operation energy efficiency of inverter air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107401817A (en) | 2017-11-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107401817B (en) | Variable frequency air conditioner control method and device | |
| CN110701759B (en) | Operation control method, operation control device, air conditioner, and storage medium | |
| CN107621048B (en) | Control method and device of air conditioner | |
| CN106440241B (en) | A kind of method for controlling speed regulation of outdoor fan of air-conditioner | |
| CN109028449B (en) | Control method and device for preventing condensation of air conditioner | |
| CN103940041A (en) | Air-conditioner and comfortable sleeping control method and system thereof | |
| CN103388879A (en) | Control method of air conditioner | |
| CN107676939B (en) | Control method, control system and control device of fixed-frequency air conditioner | |
| CN203286652U (en) | Air conditioner | |
| CN110440412B (en) | Control method and control system for electric heating belt of compressor and air conditioner | |
| CN108278723A (en) | The control method of air-conditioning | |
| CN102759174B (en) | Method for controlling self-inductance mode of variable-frequency air conditioner | |
| CN103884079A (en) | Work mode switching method of air conditioner and air conditioner | |
| CN103307710B (en) | Starting of air conditioner method | |
| CN112128867A (en) | Multi-system dehumidification control method and device | |
| CN109539500A (en) | Heating equipment and its energy-saving heat preserving control method | |
| CN104729008A (en) | Intelligent air-conditioner control method, intelligent air-conditioner control device and indoor unit | |
| WO2023010636A1 (en) | Method and device for detecting state of high-and-low pressure valve of air conditioner, air conditioner, and medium | |
| CN113865059B (en) | Heating operation control method for multi-split air conditioner | |
| CN203615545U (en) | Air conditioner | |
| CN104251533A (en) | Heat recycling type air conditioning unit and composite running mode control method thereof | |
| CN112880148B (en) | Control method and device for air conditioner, electronic equipment and storage medium | |
| CN109974202B (en) | Control method and device for slowing down frosting and air conditioner | |
| CN110017580B (en) | Fan coil and cold and heat source equipment mode interlocking control method and device and air conditioner | |
| CN111735242A (en) | Intelligent control scheme of heat pump system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.12 Gaoke Avenue, Baolong Industrial City, Baolong community, Longgang street, Longgang District, Shenzhen, Guangdong Province Patentee after: Shenzhen SKYWORTH AIR Conditioning Technology, Co.,Ltd. Address before: No.12 Gaoke Avenue, Baolong Industrial City, Baolong community, Longgang street, Longgang District, Shenzhen, Guangdong Province Patentee before: SHENZHEN SKYWORTH AIR CONDITIONING TECHNOLOGY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231124 Address after: No.001, Yongle Road, Shizi Town, Quanjiao County, Chuzhou City, Anhui Province Patentee after: SKYWORTH air conditioning technology (Anhui) Co.,Ltd. Address before: No.12 Gaoke Avenue, Baolong Industrial City, Baolong community, Longgang street, Longgang District, Shenzhen, Guangdong Province Patentee before: Shenzhen SKYWORTH AIR Conditioning Technology, Co.,Ltd. |
|
| TR01 | Transfer of patent right |