Air conditioner operation control method and device, air conditioner and storage medium

Abstract

The invention discloses an air conditioner operation control method and device, an air conditioner and a storage medium, and relates to the technical field of air conditioners, and the air conditioner operation control method comprises the steps that when all air conditioner indoor units operate according to a preset mode, compressor frequency information is calculated according to indoor unit temperature information of all the air conditioner indoor units; and according to the indoor unit temperature information and the compressor frequency information, operation control over air outlets of all the air conditioner indoor units is conducted. By means of the mode, the operation control method in the multi-connected air conditioner refrigeration mode is provided based on the side air outlet and lower air outlet integrated indoor unit, the load output change in the side air outlet and lower air outlet combined air outlet mode of the indoor unit is utilized, the self-adaptive adjusting capacity of the output of the tail end of the indoor unit along with the actual load scene is expanded, and the indoor unit can be controlled in a multi-connected air conditioner refrigeration mode. And the energy demand matching range is increased, so that frequent starting and stopping of the compressor are reduced, and the energy-saving performance and comfort of a user are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioners, in particular to an air conditioner operation control method and device, an air conditioner and a storage medium. BACKGROUND

[0002] Traditional conventional multi-split indoor units are in the form of side air outlet. Due to the single air outlet form, the end airflow organization is simple, and the load output adjustment mode is single, which can only be adjusted by the indoor fan speed. Since the multi-split air conditioner has a wide load demand range, and the actual operation of the user is mainly in a small load operation scene, when the multi-split air conditioner is operated in cooling mode, it may cause the phenomenon of big horse pulling small cart. When operated in a small load working condition, the end output is large, which may cause frequent temperature reaching start-stop, and it is neither energy-saving nor comfortable.

[0003] The above content is only used to assist in understanding the technical solutions of the present application, and does not represent the acknowledgement of the above content as prior art. SUMMARY

[0004] The main purpose of the present application is to provide an air conditioner operation control method, device, air conditioner and storage medium, which aims to solve the technical problem of frequent temperature reaching start-stop of air conditioner side air outlet cooling, which is neither energy-saving nor comfortable.

[0005] To achieve the above purpose, the present application provides an air conditioner operation control method, which is applied to an air conditioner, the air conditioner comprising an air conditioner outdoor unit and at least one air conditioner indoor unit, the air conditioner outdoor unit being connected with each air conditioner indoor unit respectively, and the air conditioner indoor unit comprising a side air outlet and a lower air outlet.

[0006] The air conditioner operation control method comprises the following steps:

[0007] When each air conditioner indoor unit operates in a preset mode, the compressor frequency information is calculated according to the indoor temperature information of each air conditioner indoor unit.

[0008] The air outlet operation control of each air conditioner indoor unit is performed according to the indoor temperature information and the compressor frequency information.

[0009] Optionally, when each air conditioner indoor unit operates in a preset mode, the compressor frequency information is calculated according to the indoor temperature information of each air conditioner indoor unit, which comprises the following steps:

[0010] When each air conditioner indoor unit operates in a preset mode, the air conditioner indoor unit is controlled to perform cooling through the side air outlet, and the set temperature and return air temperature information of each air conditioner indoor unit are obtained.

[0011] The target evaporation temperature of the air conditioner is determined according to the set temperature and return air temperature information of each air conditioner indoor unit.

[0012] The compressor frequency information is determined according to the target evaporation temperature.

[0013] Optionally, the step of determining the target evaporating temperature of the air conditioner according to the set temperature and return air temperature information of each air conditioner indoor unit includes:

[0014] Calculate the maximum temperature difference of each air conditioner indoor unit based on the set temperature and return air temperature information of each air conditioner indoor unit;

[0015] The target evaporation temperature of the air conditioner is determined according to the maximum temperature difference.

[0016] Optionally, the step of determining compressor frequency information according to the target evaporation temperature includes:

[0017] Calculate the actual average evaporating temperature of each air conditioner indoor unit;

[0018] Compressor frequency information is determined according to the target evaporating temperature and the actual average evaporating temperature.

[0019] Optionally, the step of calculating the actual average evaporating temperature of each air conditioner indoor unit includes:

[0020] Obtain the rated capacity information of each air conditioner indoor unit;

[0021] A weighted average of the target evaporating temperatures is performed according to the rated capacity information to obtain an actual average evaporating temperature.

[0022] Optionally, the step of controlling the operation of the air outlet of each indoor unit of the air conditioner according to the indoor unit temperature information and the compressor frequency information includes:

[0023] determining a current operating frequency according to the compressor frequency information, and determining a maximum temperature difference according to the indoor unit temperature information;

[0024] When the current operating frequency and the maximum temperature difference satisfy the temperature reaching shutdown condition, determining whether the maximum temperature difference of each air conditioner indoor unit satisfies the first low temperature continuous condition;

[0025] The side air outlets and the lower air outlets of each air-conditioning indoor unit whose maximum temperature difference meets the first low temperature persistence condition are opened simultaneously to reduce the output cooling capacity.

[0026] Optionally, after the step of simultaneously opening the side air outlets and the lower air outlets of each air-conditioning indoor unit whose maximum temperature difference satisfies the first low temperature persistence condition to reduce the output cooling capacity, the step further includes:

[0027] Determining whether the maximum temperature difference of each air conditioner indoor unit meets the second low temperature persistence condition;

[0028] Close the side air outlet of each air conditioner indoor unit that meets the second low temperature duration condition to reduce the output of cold energy.

[0029] In addition, to achieve the above object, the present application also provides an air conditioner operation control device, which comprises:

[0030] An information collection module is configured to calculate compressor frequency information according to indoor unit temperature information of each air conditioner indoor unit when each air conditioner indoor unit operates in a preset mode.

[0031] An operation control module is configured to perform air outlet operation control of each air conditioner indoor unit according to the indoor unit temperature information and the compressor frequency information.

[0032] In addition, to achieve the above object, the present application also provides an air conditioner, which comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, and the computer program is configured to implement the steps of the air conditioner operation control method as described above.

[0033] In addition, to achieve the above object, the present application also provides a storage medium, which is a computer readable storage medium, and the storage medium stores a computer program, and the computer program is executed by a processor to implement the steps of the air conditioner operation control method as described above.

[0034] In addition, to achieve the above object, the present application also provides a computer program product, which comprises a computer program, and the computer program is executed by a processor to implement the steps of the air conditioner operation control method as described above.

[0035] The one or more technical solutions provided by the present application have at least the following technical effects:

[0036] According to the present application, the compressor frequency information is calculated according to the indoor unit temperature information of each air conditioner indoor unit when each air conditioner indoor unit operates in a preset mode, and the air outlet operation control of each air conditioner indoor unit is performed according to the indoor unit temperature information and the compressor frequency information. In this way, an operation control method for a multi-connected air conditioner in a refrigeration mode is proposed based on a side air outlet and a lower air outlet integrated indoor unit, the load output change in the combined air outlet mode of the side air outlet and the lower air outlet of the indoor unit is utilized to expand the adaptive adjustment capability of the indoor unit terminal output according to the actual load scene, increase the range of energy demand matching, thereby reducing the frequent start and stop of the compressor, and improving the energy saving and comfort of the user. BRIEF DESCRIPTION OF DRAWINGS

[0037] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, the drawings are only for the purpose of illustrating the embodiments of the present application, and for the person of ordinary skill in the art, other drawings can be obtained without creative labor.

[0039] Figure 1 The flowchart provided for the air conditioner operation control method embodiment one of the present application;

[0040] Figure 2 The schematic diagram of the structure and air outlet state of the indoor unit of an embodiment of the air conditioner of the present application;

[0041] Figure 3 The schematic diagram of the air conditioner indoor unit temperature sensor setting of the air conditioner of the present application;

[0042] Figure 4 The flowchart provided for the air conditioner operation control method embodiment two of the present application;

[0043] Figure 5 The module structure schematic diagram of the air conditioner operation control device embodiment of the present application;

[0044] Figure 6 The device structure schematic diagram of the hardware operation environment involved in the air conditioner operation control method embodiment of the present application.

[0045] Explanation of the reference signs:

[0046] Indoor heat exchanger 21, indoor fan 22, air outlet assembly 23, first air guide assembly 24, second air guide assembly 25;

[0047] Side air outlet 201, lower air outlet 202, first switch door 231, second switch door 232.

[0048] The purpose realization, functional characteristics and advantages of the present application will be further explained with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0049] It should be understood that the specific embodiments described herein are only used to explain the technical solutions of the present application, and are not used to limit the present application.

[0050] In order to better understand the technical solutions of the present application, the following will be described in detail in conjunction with the drawings of the specification and the specific embodiments.

[0051] The main solution of the embodiment of the present application is that when each air conditioner indoor unit operates according to a preset mode, the compressor frequency information is calculated according to the indoor unit temperature information of each air conditioner indoor unit; and the outlet operation control of each air conditioner indoor unit is performed according to the indoor unit temperature information and the compressor frequency information.

[0052] In the embodiment, for convenience of description, the following describes a multi-split air conditioner as an execution subject.

[0053] Since the conventional multi-split indoor unit in the prior art is in a side-outlet form, the simple outlet form of the side-outlet leads to simple airflow organization at the end and single load output adjustment mode, which can only be adjusted by the speed of the indoor fan. The present application proposes a side-outlet and lower-outlet integrated indoor unit and a control method thereof in a multi-split air conditioner set in a refrigeration mode. Since the multi-split air conditioner has a wide load demand range, the actual operation of the user is mainly in a small load operation scene, and therefore, when the multi-split air conditioner set operates in the refrigeration mode, it will cause the phenomenon of big horse pulling small cart, and when it operates in a small load working condition, it will cause frequent temperature reaching start and stop due to large end output, which is neither energy-saving nor comfortable. Therefore, the present application proposes a control method of the multi-split air conditioner set in the refrigeration mode based on the side-outlet and lower-outlet integrated indoor unit, uses the load output change in the combined outlet mode of the side-outlet and lower-outlet of the indoor unit, expands the adaptive adjustment capability of the end output of the indoor unit according to the actual load scene, increases the range of energy demand matching, thereby reducing the frequent start and stop of the compressor and improving the energy-saving and comfort of the user.

[0054] The present application provides a solution in this way, which realizes a control method of the multi-split air conditioner set in the refrigeration mode based on the side-outlet and lower-outlet integrated indoor unit, uses the load output change in the combined outlet mode of the side-outlet and lower-outlet of the indoor unit, expands the adaptive adjustment capability of the end output of the indoor unit according to the actual load scene, increases the range of energy demand matching, thereby reducing the frequent start and stop of the compressor and improving the energy-saving and comfort of the user.

[0055] It should be noted that the execution subject of the embodiment can be a computing service device with data processing, network communication and program running functions, such as a tablet computer, a personal computer, a mobile phone, etc., or an electronic device, an air conditioner, a multi-split air conditioner, etc. capable of realizing the above functions. The following describes the embodiment and each of the following embodiments by taking the multi-split air conditioner as an example.

[0056] Based on this, the embodiment of the present application provides an air conditioner operation control method, which refers to Figure 1 , Figure 1 The flowchart of the first embodiment of the air conditioner operation control method of the present application is shown in the figure.

[0057] In this embodiment, the air conditioner operation control method includes steps S10-S40.

[0058] In this embodiment, the control method of the air conditioner is applied to an air conditioner, which includes an air conditioner outdoor unit and at least one air conditioner indoor unit, the air conditioner outdoor unit is connected with each air conditioner indoor unit respectively, and the air conditioner indoor unit includes a side air outlet and a lower air outlet.

[0059] In this embodiment, the air conditioner in this embodiment refers to a multi-split air conditioner, which is an air conditioner that connects multiple indoor units with one outdoor unit and can adjust air temperature, humidity, cleanliness and air flow rate in multiple rooms simultaneously, including but not limited to cooling, heating and fresh air circulation modes.

[0060] It can be understood that, with reference to Figure 2 , the air conditioner includes an air conditioner indoor unit, the air conditioner indoor unit includes at least two air outlets, different air outlets have different orientations, and different air outlets have different air outlet wind resistances. In this embodiment, the air conditioner indoor unit includes a side air outlet and a lower air outlet, and the air outlet wind resistance of the lower air outlet is greater than that of the side air outlet.

[0061] In this embodiment, the air conditioner indoor unit is a ducted air conditioner. The installation height of the air conditioner indoor unit is higher than the height of a human body.

[0062] The air conditioner indoor unit is provided with an indoor air duct, the at least two air outlets are in communication with the indoor air duct, an indoor heat exchanger 21 and an indoor fan 22 are arranged in the indoor air duct, and the indoor fan 22 can drive indoor air to enter the indoor air duct, exchange heat with the indoor heat exchanger 21, and then be sent into the indoor space from the at least one air outlet.

[0063] In this embodiment, the air conditioner indoor unit includes a shell, the shell includes a bottom plate and a side plate connected with the bottom plate, the bottom plate is provided with a lower air outlet 202, the side plate is provided with a side air outlet 201, and the lower air outlet 202 and the side air outlet 201 are in communication with the indoor air duct.

[0064] The bottom plate is a plate body located at the bottom of the shell when the air conditioner indoor unit is installed in an indoor space, and the side plate is a plate body adjacent to the bottom plate on the shell. When the air conditioner indoor unit is installed in an indoor space, the included angle (for example, 0 degrees) between the side plate and the wall of the indoor space is smaller than the included angle (for example, 90 degrees) between the bottom plate and the wall of the indoor space.

[0065] The air outlet surface where the lower air outlet 202 is located and the air outlet surface where the side air outlet 201 is located can be intersected (with reference to Figure 2) can also be arranged without intersection, and the present embodiment does not limit this. Without the air guiding effect of the air guiding assembly, the air outlet direction of the lower air outlet 202 is downward (vertically downward or an angle less than or equal to 45° with the vertical direction), and the air outlet direction of the side air outlet 201 is horizontal (along the horizontal direction or an angle less than or equal to 45° with the horizontal direction). In the present embodiment, the air outlet surface where the lower air outlet 202 is located is arranged perpendicularly to the air outlet surface where the side air outlet 201 is located.

[0066] Without the air guiding effect of the air guiding assembly during the operation of the indoor fan 22, the air resistance of the air in the indoor air duct when the air is discharged from the lower air outlet 202 is greater than the air resistance of the air in the indoor air duct when the air is discharged from the side air outlet 201, that is, the air volume of the lower air outlet 202 is less than the air volume of the side air outlet 201 at the same speed of the indoor fan 22. In the present embodiment, the area of the lower air outlet 202 is less than the area of the side air outlet 201, and the angle between the air outlet direction of the indoor fan 22 and the air outlet surface where the side air outlet 201 is located is greater than the angle between the air outlet direction of the indoor fan 22 and the air outlet surface where the lower air outlet 202 is located, that is, the air outlet direction of the indoor fan 22 is toward the side air outlet 201 and not toward the lower air outlet 202.

[0067] When the air conditioner indoor unit discharges air through the lower air outlet 202, the discharged air can not only adjust the air temperature of the indoor space, but also adjust the temperature of the envelope structure of the indoor space.

[0068] In other embodiments, the at least two air outlets can also be arranged on the side of the air conditioner indoor unit, or the air outlet directions corresponding to the at least two air outlets when the at least two air outlets are fully opened can be the same.

[0069] In the present embodiment, the air conditioner indoor unit further comprises an air outlet assembly 23 arranged to adjust the air outlet state of the at least two air outlets, and the air outlet assembly 23 can adjust the opening and / or closing of each air outlet and / or adjust the air volume.

[0070] The air outlet assembly 23 can be a whole structure or composed of more than one switch door. When the air outlet assembly 23 comprises more than one switch door, the air outlets can correspond to the switch doors one by one, and each switch door can adjust the air outlet state of the corresponding air outlet; or some switch doors can simultaneously adjust the air outlet states of different air outlets.

[0071] In the present embodiment, the air outlet assembly 23 is arranged in the indoor air duct, and the position change of the air outlet assembly 23 can realize the cooperation of the lower air outlet 202 and the side air outlet 201 in different air outlet states:

[0072] Referring to Figure 2 , the dashed line is the air flow direction, and when the air outlet assembly 23 is in the first position state, the lower air outlet 202 and the side air outlet 201 are both opened.

[0073] In the embodiment, the air outlet assembly 23 comprises a first switch door 231 and a second switch door 232, the side air outlet 201 comprises a first air outlet area and a second air outlet area, the first switch door 231 is arranged to adjust the air volume of the first air outlet area, and the second switch door 232 is arranged to adjust the air volume of the second air outlet area and the lower air outlet 202.

[0074] In the embodiment, the first air outlet area is an upper air outlet area away from the lower air outlet 202, the second air outlet area is a lower air outlet area close to the lower air outlet 202, the first switch door 231 is rotatably installed on the upper side of the side air outlet 201 to adjust the air volume of the upper air outlet area, and the second switch door 232 is rotatably installed at the abutting position between the lower air outlet 202 and the side air outlet 201, and the second switch door 232 can simultaneously adjust the air volume of the lower air outlet area and the lower air outlet 202 when rotating.

[0075] With reference to Figure 2 , the first position state comprises that the first switch door 231 is in the first position and the second switch door 232 is in the second position, the second switch door 232 simultaneously opens the second air outlet area and the lower air outlet 202 in the second position, and the side air outlet 201 is fully opened at this time. The first switch door 231 and the second switch door 232 cooperate to open the lower air outlet 202 and the side air outlet 201, and the air outlet of the indoor fan 22 is blown into the indoor room from the lower air outlet 202 and the side air outlet 201 under the cooperative guiding action of the first switch door 231 and the second switch door 232.

[0076] In other embodiments, the air outlet assembly 23 can also comprise a third switch door rotatably installed between the lower air outlet 202 and the side air outlet 201, the third switch door can be switched between a first operating position, a second operating position and a third operating position, the first operating position is a position of closing the lower air outlet 202 and opening the side air outlet 201, the second operating position is a position of closing the side air outlet 201 and opening the lower air outlet 202, and the third operating position is a position of simultaneously opening the lower air outlet 202 and the side air outlet 201 between the lower air outlet 202 and the side air outlet 201.

[0077] In an embodiment, the indoor unit of the air conditioner can further comprise a first air guide assembly 24, the first air guide assembly 24 can be arranged at the lower air outlet 202 and located outside the indoor air duct, and the first air guide assembly 24 can be installed on the shell.

[0078] The first air guide assembly 24 can open or close the lower air outlet 202, and adjust the air direction of the lower air outlet 202 when the lower air outlet 202 is opened.

[0079] In one embodiment, the indoor unit of the air conditioner may further include a second air guide assembly 25. The second air guide assembly 25 may be provided at the side air outlet 201 and located outside the indoor air duct. The second air guide assembly 25 may be installed on the housing.

[0080] The second air guide assembly 25 can open or close the side air outlet 201 and adjust the air outlet direction of the side air outlet 201 when the side air outlet 201 is opened.

[0081] In one embodiment, the air conditioner includes a refrigerant circulation circuit, which includes the above-mentioned air conditioner indoor unit, a throttling device, an outdoor heat exchanger, a reversing component and a compressor, and the compressor is connected to the air conditioner indoor unit.

[0082] The exhaust port of the compressor, the return air port of the compressor, the outdoor heat exchanger and the indoor heat exchanger 21 are all connected to the reversing component. The reversing component has a first operating state and a second operating state. When the reversing component operates in the first operating state, the exhaust port is connected to the outdoor heat exchanger and the return air port is connected to the indoor heat exchanger 21. When the reversing component operates in the second operating state, the exhaust port is connected to the indoor heat exchanger 21 and the return air port is connected to the outdoor heat exchanger.

[0083] The air conditioner indoor unit further includes a first temperature sensor (not shown), which can be disposed in the indoor air duct and located on the air outlet side of the indoor fan 22 to detect the air outlet temperature of the air conditioner indoor unit.

[0084] The air conditioner indoor unit further includes a second temperature sensor (not shown), which can be disposed on the coil of the indoor heat exchanger 21 to detect the temperature of the indoor heat exchanger 21 .

[0085] like Figure 3 As shown, for example, the indoor unit 1 includes a side air outlet and a lower air outlet. A plurality of temperature sensing packages are provided in the indoor unit to detect the temperature of each component in the indoor unit, including a T2B temperature sensing package, a T2 temperature sensing package, and an air outlet temperature sensing package. The T2 temperature sensing package is placed in the middle of the evaporator, the T2B temperature sensing package is placed at the evaporator outlet in the cooling flow direction, and the air outlet temperature sensing package is placed at the intersection of the side air outlet and the lower air outlet.

[0086] Step S10, when each air conditioner indoor unit operates according to a preset mode, the compressor frequency information is calculated based on the indoor unit temperature information of each air conditioner indoor unit;

[0087] It should be noted that the air conditioner of this embodiment is as follows Figure 2 As shown, the air conditioner includes: an air conditioner outdoor unit and at least one air conditioner indoor unit, the air conditioner indoor unit is a side outlet + bottom outlet integrated air conditioner indoor unit, and the side air outlet and bottom air outlet included in the air conditioner indoor unit are as shown in FIG. Figure 3It is shown that, in the embodiment, the side air outlet area is greater than the lower air outlet area, and the air outlet area can be adjusted according to actual requirements, which is not limited in the embodiment.

[0088] In a specific implementation, T1: the indoor return air temperature of each indoor unit; Ts: the set temperature of each indoor unit; F: the current multi-split air conditioner operating frequency; and Fmin: the minimum operating frequency of the system in the current refrigeration mode.

[0089] It should be understood that, when the multi-split air conditioner is running, large cooling capacity output is required in the initial cooling stage to ensure the temperature drop effect under large load demand. However, after running to the small load stage, if the cooling capacity is excessively output, the indoor overcooling will be caused. If all the rooms where the indoor units are located are overcooled and the compressor frequency of the host machine has reached the minimum output, the host machine will be stopped if no other output adjustment means is adopted. The present scheme combines the characteristics of the side air outlet and the lower air outlet of the indoor unit, and flexibly switches the air outlet modes of the side air outlet and the lower air outlet according to the load demand. On the one hand, large cooling capacity output is ensured in the large load stage, and on the other hand, the possibility of temperature reaching stop is reduced as much as possible in the small load stage.

[0090] In a specific implementation, under the same fan speed, the side air outlet area is large, and the output cooling capacity is large. If the air is output from the side air outlet, the output cooling capacity is the largest. If the lower air outlet and the side air outlet are output at the same time, the same air volume will be shared to the two air outlets in the vertical direction, the air pressure will be small, and the output cooling capacity will be reduced. If the air is output from the lower air outlet, the output cooling capacity will be further reduced because the lower air outlet area is smaller than the side air outlet. Therefore, the output cooling capacity is: only side air outlet > side air outlet + lower air outlet > only lower air outlet.

[0091] It should be noted that, when each indoor unit starts to run in the refrigeration mode, the "only side air outlet mode" is used by default, which is the preset mode.

[0092] It should be understood that, after determining that each air conditioner indoor unit runs in the preset mode, the temperature information of each air conditioner indoor unit is first collected, so that the compressor frequency information can be calculated according to the temperature information, and the air outlet switching and control of the air conditioner indoor unit can be further controlled according to the compressor frequency information.

[0093] In step S20, the air outlet running control of each air conditioner indoor unit is performed according to the indoor unit temperature information and the compressor frequency information.

[0094] In a specific implementation, the current operating frequency is first determined, then the temperature comparison is performed to determine the maximum temperature difference, and finally the air outlet control of the air conditioner indoor unit is performed based on whether the maximum temperature difference meets the first low-temperature continuous condition.

[0095] In a feasible implementation, in order to accurately control the air outlet of the indoor unit of the air conditioner, step S20 comprises: determining a current operating frequency according to the compressor frequency information, and determining a maximum temperature difference value according to the indoor unit temperature information; when the current operating frequency and the maximum temperature difference value satisfy the temperature reaching stop condition, determining whether the maximum temperature difference value of each air conditioner indoor unit satisfies a first low temperature duration condition; and simultaneously opening the side air outlet and the lower air outlet of each air conditioner indoor unit whose maximum temperature difference value satisfies the first low temperature duration condition to reduce the output cooling capacity.

[0096] It should be noted that whether to enter the indoor unit air outlet combination adjustment is determined according to the current system operating frequency F and the maximum max(T1-Ts) of all indoor units, and the air outlet mode of each indoor unit is determined according to T1-Ts of each indoor unit.

[0097] It should be understood that when the operating frequency F is equal to the minimum operating frequency Fmin of the system (which indicates that the compressor has reached the minimum output state at this time), and max(T1-Ts) < DT_thre0 (which indicates that the temperature reaching stop condition is satisfied at this time, and the condition satisfies that the user load has changed from a large load demand to a small load demand, and the multi-split system is at the edge of the temperature reaching stop), the next step is entered. DT_thre0 is a pre-set temperature threshold value, which can be any value, and the present embodiment does not limit it.

[0098] In a specific implementation, it is determined whether the duration of T1-Ts≤DT_thre1 of each indoor unit is greater than Dur1, and if the condition is satisfied, it indicates that the indoor unit is in an output greater than load state at this time, and the side air outlet and the lower air outlet are simultaneously opened to appropriately reduce the output cooling capacity. DT_thre1 is a pre-set temperature threshold value, which can be any value, and the present embodiment does not limit it. Dur1 is a pre-set arbitrary time period, which can be any value, and the present embodiment does not limit it.

[0099] In a feasible implementation, in order to further adjust when the side air outlet and the lower air outlet are simultaneously opened and still output too much, the step of simultaneously opening the side air outlet and the lower air outlet of each air conditioner indoor unit whose maximum temperature difference value satisfies the first low temperature duration condition to reduce the output cooling capacity is followed by: determining whether the maximum temperature difference value of each air conditioner indoor unit satisfies a second low temperature duration condition; and closing the side air outlet of each air conditioner indoor unit whose maximum temperature difference value satisfies the second low temperature duration condition to reduce the output cooling capacity.

[0100] It should be noted that, if the duration of T1-Ts≤DT_thre2 is greater than Dur2, it means that the output is still too large when the side air outlet and the lower air outlet are both opened, at this time, the side air outlet is closed and only the lower air outlet is opened, further reducing the output of cold quantity. DT_thre2 is a pre-set temperature threshold, which can be any value, and the embodiment does not limit it. Dur2 is a pre-set arbitrary time period, which can be any value, and the embodiment does not limit it.

[0101] The embodiment provides an air conditioner operation control method, when each air conditioner indoor unit operates according to a preset mode, calculating compressor frequency information according to indoor unit temperature information of each air conditioner indoor unit; and performing air outlet operation control of each air conditioner indoor unit according to the indoor unit temperature information and the compressor frequency information. In this way, an operation control method of a multi-connected air conditioner in a refrigeration mode is proposed based on a side air outlet and a lower air outlet integrated indoor unit, the load output change in the combined air outlet mode of the side air outlet and the lower air outlet of the indoor unit is used to expand the adaptive adjustment capability of the indoor unit terminal output according to the actual load scene, increase the range that can be matched, thereby reducing the frequent start and stop of the compressor, and improving the energy saving and comfort of the user.

[0102] Based on the first embodiment of the present application, in the second embodiment of the present application, the same or similar contents as the above embodiment one can refer to the above introduction, and will not be described in detail. On this basis, please refer to Figure 4 , step S10 includes steps S101-S103:

[0103] Step S101, when each air conditioner indoor unit operates according to a preset mode, controlling each air conditioner indoor unit to perform refrigeration through the side air outlet, and obtaining set temperature and return air temperature information of each air conditioner indoor unit;

[0104] It should be noted that, first, initialize each air conditioner indoor unit under the preset mode, and only perform refrigeration through the side air outlet, then collect the set temperature and return air temperature information of the air conditioner indoor unit at this time.

[0105] Step S102, determining an air conditioner target evaporation temperature according to the set temperature and return air temperature information of each air conditioner indoor unit;

[0106] It should be understood that, after the set temperature and return air temperature information are determined, the target evaporation temperature of the air conditioner is calculated, which is specifically calculating the difference between the set temperature and the return air temperature.

[0107] In a feasible implementation, in order to accurately calculate the target evaporation temperature, step S102 includes: calculating a maximum temperature difference of each air conditioner indoor unit according to the set temperature and return air temperature information of each air conditioner indoor unit; and determining an air conditioner target evaporation temperature according to the maximum temperature difference.

[0108] In a specific implementation, T1-Ts of each open indoor unit is calculated, and the maximum (T1-Ts) of all indoor units is obtained, denoted as max(T1-Ts).

[0109] It should be noted that the system target T2 is determined according to max(T1-Ts), and is determined according to the following formula:

[0110] T2_target=T2_past-C0*max(T1-Ts)

[0111] Wherein, T2_past is the target T2_target at the last time, and the initial value thereof is a preset value T2_target_ini.

[0112] It should be understood that C0 in the formula is determined according to the following rules:

[0113] When DW_DT1≤max(T1-Ts)≤DW_DT2, C0=0 (at this time, T2_target remains unchanged, in the balance hysteresis zone);

[0114] When max(T1-Ts)<DW_DT1, C0=Kdown_T2 (K1_T2>0, a preset value) (at this time, T2_target will rise)

[0115] When max(T1-Ts)>DW_DT2, C0=Kup_T2 (K1_T2>0, a preset value) (at this time, T2_target will fall).

[0116] Wherein, DW_DT1 and DW_DT2 are preset temperature thresholds, which can be any value, and the present embodiment does not limit them.

[0117] Step S103, determining the compressor frequency information according to the target evaporation temperature.

[0118] In a specific implementation, in order to accurately determine the compressor frequency information, it is necessary to first calculate the actual evaporation temperature of the air conditioner, and then compare the actual evaporation temperature with the target evaporation temperature to determine the compressor frequency information.

[0119] In a feasible implementation, in order to finally determine the compressor frequency, step S103 includes: calculating the actual average evaporation temperature of each air conditioner indoor unit; determining the compressor frequency information according to the target evaporation temperature and the actual average evaporation temperature.

[0120] It should be noted that after the actual average evaporation temperature is calculated, according to the difference X=T2_mean-T2_target between T2_mean and T2_target, the current compressor operating frequency F is determined according to the frequency adjustment value in Table 1 below.

[0121] Table 1

[0122]

[0123] In a feasible implementation, in order to determine the actual average evaporation temperature, the step of calculating the actual average evaporation temperature of each air conditioner indoor unit comprises: obtaining rated capacity information of each air conditioner indoor unit; and performing weighted average on the target evaporation temperature according to the rated capacity information to obtain the actual average evaporation temperature.

[0124] It should be noted that the actual T2 value of each indoor unit in real time is obtained, and the T2 value of the system is weighted and averaged according to the rated capacity of different indoor units to obtain the actual average T2 value of the current system. For example, there are n indoor units with required capacity n1, n2, n3…nx KW, and T2 temperature corresponding to T21, T22, T23…T2x℃, then

[0125] T2_mean=(n1*T21+n2*T22+n3*T23+...+nx*T2x) / (n1+n2+n3+...+nx).

[0126] In this embodiment, when each air conditioner indoor unit operates in a preset mode, the air conditioner indoor unit is controlled to perform refrigeration through the side air outlet, and the set temperature and return air temperature information of each air conditioner indoor unit is obtained; the target evaporation temperature of the air conditioner is determined according to the set temperature and return air temperature information of each air conditioner indoor unit; and the compressor frequency information is determined according to the target evaporation temperature. In this way, the load output change in the combined air outlet mode of the indoor unit side air outlet and the lower air outlet is realized, the adaptive adjustment capability of the indoor unit terminal output according to the actual load scene is expanded, the range of energy demand matching is increased, the frequent start and stop of the compressor is reduced, and the energy saving and comfort of the user are improved.

[0127] It should be noted that the above examples are only used for understanding the present application and do not constitute a limitation on the air conditioner operation control method of the present application. More forms of simple transformation based on this technical concept are within the protection scope of the present application.

[0128] The present application also provides an air conditioner operation control device, please refer to Figure 5 , the air conditioner operation control device comprises:

[0129] The information collection module 10 is used to calculate the compressor frequency information according to the indoor temperature information of each air-conditioning indoor unit when each air-conditioning indoor unit operates according to a preset mode.

[0130] The operation control module 20 is used to control the operation of the air outlet of each indoor unit of the air conditioner according to the indoor unit temperature information and the compressor frequency information.

[0131] This embodiment calculates compressor frequency information based on the indoor unit temperature information of each air conditioner when each indoor unit operates in a preset mode. The air outlet operation of each indoor unit is then controlled based on the indoor unit temperature information and the compressor frequency information. This method implements a multi-connected air conditioner operating control method in cooling mode based on an indoor unit with integrated side and downflow airflow. This method utilizes load output variations in the indoor unit's combined side and downflow airflow mode to expand the adaptive adjustment capability of the indoor unit's terminal output in response to actual load scenarios, increasing the range of energy-demand matching, thereby reducing the frequent starting and stopping of the compressor and improving energy efficiency and user comfort.

[0132] In one embodiment, the information acquisition module 10 is further used to control each air-conditioning indoor unit to perform cooling through the side air outlet when each air-conditioning indoor unit operates according to a preset mode, and obtain the set temperature and return air temperature information of each air-conditioning indoor unit; determine the target evaporating temperature of the air conditioner based on the set temperature and return air temperature information of each air-conditioning indoor unit; and determine the compressor frequency information based on the target evaporating temperature.

[0133] In one embodiment, the information collection module 10 is further configured to calculate the maximum temperature difference of each air conditioner indoor unit based on the set temperature and return air temperature information of each air conditioner indoor unit; and determine the target evaporation temperature of the air conditioner based on the maximum temperature difference.

[0134] In one embodiment, the information acquisition module 10 is further configured to calculate the actual average evaporating temperature of each indoor unit of the air conditioner; and determine the compressor frequency information according to the target evaporating temperature and the actual average evaporating temperature.

[0135] In one embodiment, the information acquisition module 10 is further configured to obtain rated capacity information of each indoor unit of the air conditioner; and perform weighted averaging on the target evaporating temperature according to the rated capacity information to obtain an actual average evaporating temperature.

[0136] In an embodiment, the operation control module 20 is further configured to determine a current operation frequency according to the compressor frequency information, and determine a maximum temperature difference value according to the indoor unit temperature information; when the current operation frequency and the maximum temperature difference value satisfy a temperature reaching stop condition, determine whether the maximum temperature difference value of each air conditioner indoor unit satisfies a first low temperature duration condition; and simultaneously open the side air outlet and the lower air outlet of each air conditioner indoor unit whose maximum temperature difference value satisfies the first low temperature duration condition to reduce the output cooling capacity.

[0137] In an embodiment, the operation control module 20 is further configured to determine a current operation frequency according to the compressor frequency information, and determine a maximum temperature difference value according to the indoor unit temperature information; when the current operation frequency and the maximum temperature difference value satisfy a temperature reaching stop condition, determine whether the maximum temperature difference value of each air conditioner indoor unit satisfies a first low temperature duration condition; and simultaneously open the side air outlet and the lower air outlet of each air conditioner indoor unit whose maximum temperature difference value satisfies the first low temperature duration condition to reduce the output cooling capacity.

[0138] The air conditioner operation control device provided in the present application adopts the air conditioner operation control method in the above embodiments, and can solve the technical problem that the air conditioner side air outlet frequently reaches the temperature to start and stop, which is neither energy-saving nor comfortable. Compared with the prior art, the air conditioner operation control device provided in the present application has the same beneficial effects as the air conditioner operation control method provided in the above embodiments, and other technical features in the air conditioner operation control device are the same as the features disclosed in the above embodiments, which will not be described here.

[0139] The present application provides an air conditioner, which comprises at least one processor and a memory connected with the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the air conditioner operation control method in the above embodiment one.

[0140] Reference will now be made to the following description Figure 6 which shows a structural schematic diagram of an air conditioner suitable for implementing the embodiments of the present application. The air conditioner in the embodiments of the present application can include, but is not limited to, mobile terminals such as mobile phones, notebook computers, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Descriptions), PMPs (Portable Media Players), vehicle-mounted terminals (such as vehicle-mounted navigation terminals), and the like, and fixed terminals such as digital TVs, desktop computers, and the like. Figure 6 The air conditioner shown is only an example, and should not impose any limitation on the functions and use range of the embodiments of the present application.

[0141] As shown in Figure 6 The air conditioner can include a processing device 1001 (e.g., a central processing unit, a graphics processing unit, etc.) that can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 1002 or a program loaded from a storage device 1003 into a random access memory (RAM) 1004. Various programs and data required for operation of the air conditioner are also stored in the RAM 1004. The processing device 1001, the ROM 1002, and the RAM 1004 are connected to each other through a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Generally, the following systems can be connected to the I / O interface 1006: an input device 1007 including, for example, a touch screen, a touch pad, a keyboard, a mouse, an image sensor, a microphone, an accelerometer, a gyroscope, etc.; an output device 1008 including, for example, a liquid crystal display (LCD), a speaker, a vibrator, etc.; the storage device 1003 including, for example, a magnetic tape, a hard disk, etc.; and a communication device 1009. The communication device 1009 can allow the air conditioner to communicate with other devices wirelessly or by wire to exchange data. Although the air conditioner with various systems is shown in the figure, it should be understood that all the shown systems are not required to be implemented or possessed. More or fewer systems can be alternatively implemented or possessed.

[0142] In particular, the processes described above with reference to the flowcharts can be implemented as a computer software program according to embodiments of the present disclosure. For example, embodiments of the present disclosure include a computer program product comprising a computer program carried on a computer readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network by the communication device, or installed from the storage device 1003, or installed from the ROM 1002. When the computer program is executed by the processing device 1001, the above-mentioned functions defined in the methods of embodiments of the present disclosure are performed.

[0143] The air conditioner provided by the present application adopts the air conditioner operation control method in the above-mentioned embodiments, which can solve the technical problem that the side air outlet of the air conditioner frequently reaches the temperature start-stop during cooling, which is neither energy-saving nor comfortable. Compared with the prior art, the air conditioner provided by the present application has the same beneficial effects as the air conditioner operation control method provided by the above-mentioned embodiments, and other technical features in the air conditioner are the same as the features disclosed in the previous embodiment method, which will not be repeated here.

[0144] It should be understood that various aspects of the disclosure can be implemented in hardware, software, firmware, or a combination thereof. In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any appropriate manner in any one or more embodiments or examples.

[0145] The above description is merely illustrative of the application and is not intended to limit the scope of the application. Any variations and modifications that can be made by any person skilled in the art within the spirit and scope of the application are intended to be encompassed by the application. Therefore, the scope of the application should be determined by the appended claims.

[0146] The application provides a computer readable storage medium having stored thereon computer readable program instructions (i.e., a computer program) for performing the air conditioner operation control method in the above-described embodiments.

[0147] The computer readable storage medium provided by the application may, for example, be a U disk, but is not limited to an electric, magnetic, optical, electromagnetic, infrared, or semiconductor system, system, or device, or any combination thereof. More specific examples of the computer readable storage medium can include, but are not limited to, an electric connection having one or more conductive wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any appropriate combination thereof. In the present embodiment, the computer readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, system, or device. The program code contained on the computer readable storage medium can be transmitted by any appropriate medium, including but not limited to an electric wire, an optical cable, an RF (Radio Frequency), etc., or any appropriate combination thereof.

[0148] The above computer readable storage medium can be contained in an air conditioner; or can exist separately without being assembled into an air conditioner.

[0149] The computer readable storage medium carries one or more programs, when the one or more programs are executed by the air conditioner, the air conditioner is caused to: calculate compressor frequency information according to indoor unit temperature information of each air conditioner indoor unit when each air conditioner indoor unit operates according to a preset mode; and perform outlet operation control of each air conditioner indoor unit according to the indoor unit temperature information and the compressor frequency information.

[0150] Computer program code for carrying out operations of the present application can be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code can execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the latter scenario, the remote computer can be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or the connection can be made to an external computer (for example, through the Internet using an Internet Service Provider).

[0151] The flow diagrams and the block diagrams in the drawings are illustrations of architectures, functionalities, and operations of possible implementations of systems, methods, and computer program products according to various embodiments of present application. In this regard, each block in the flow diagrams or block diagrams can represent a module, a procedure, or a part of code, which comprises one or more executable instructions for implementing the specified functions. It should also be noted that, in some alternative implementations, the functions noted in the blocks can occur in a different order than that noted in the figures. For example, two blocks noted in succession can in fact be executed substantially concurrently or in the opposite order, depending on the functionality involved. It should also be noted that each block in the block diagrams and / or flow diagrams, and combinations of blocks in the block diagrams and / or flow diagrams, can be implemented by dedicated hardware-based systems that perform the specified functions or operations, or can be implemented by a combination of dedicated hardware-based systems and computer instructions.

[0152] The modules involved in the embodiments of the present application can be implemented in software or in hardware. In some cases, the names of the modules do not constitute a limitation on the modules themselves.

[0153] The readable storage medium provided by the application is a computer readable storage medium, and the computer readable storage medium stores computer readable program instructions (namely, a computer program) for executing the air conditioner operation control method described above, and can solve the technical problem that the air conditioner side outflow refrigeration is frequently temperature start-stop, neither energy saving nor comfortable. Compared with the prior art, the computer readable storage medium provided by the application has the same beneficial effects as the air conditioner operation control method provided by the above-mentioned embodiments, and will not be described here.

[0154] The application further provides a computer program product, comprising a computer program, and the computer program is executed by a processor to realize the steps of the air conditioner operation control method described above.

[0155] The computer program product provided by the application can solve the technical problem that the air conditioner side outflow refrigeration is frequently temperature start-stop, neither energy saving nor comfortable. Compared with the prior art, the computer program product provided by the application has the same beneficial effects as the air conditioner operation control method provided by the above-mentioned embodiments, and will not be described here.

[0156] The above-mentioned is only part of the embodiments of the application, and does not limit the patent scope of the application, and any equivalent structural transformation, direct / indirect application in other related technical fields under the technical concept of the application, and the content of the specification and the drawings are included in the patent protection scope of the application.

Claims

1. An air conditioning operation control method, characterized in that: The air-conditioning operation control method is applied to an air conditioner, wherein the air conditioner includes an outdoor air conditioner and at least one indoor air conditioner, wherein the outdoor air conditioner is connected to each indoor air conditioner, and the indoor air conditioner includes a side air outlet and a bottom air outlet; The air conditioning operation control method includes: When each air conditioner indoor unit operates according to a preset mode, the compressor frequency information is calculated based on the indoor unit temperature information of each air conditioner indoor unit; The air outlet operation of each air conditioner indoor unit is controlled according to the indoor unit temperature information and the compressor frequency information.

2. The method according to claim 1, wherein The step of calculating the compressor frequency information according to the indoor temperature information of each air conditioner when each air conditioner indoor unit operates according to a preset mode includes: When each air conditioner is operating in a preset mode, controlling each air conditioner to cool through the side air outlet and obtaining the set temperature and return air temperature information of each air conditioner; Determine the target evaporation temperature of the air conditioner based on the set temperature and return air temperature information of each air conditioner indoor unit; The compressor frequency information is determined according to the target evaporation temperature.

3. The method according to claim 2, wherein The step of determining the target evaporation temperature of the air conditioner according to the set temperature of each air conditioner indoor unit and the return air temperature information includes: Calculate the maximum temperature difference of each air conditioner indoor unit based on the set temperature and return air temperature information of each air conditioner indoor unit; The target evaporation temperature of the air conditioner is determined according to the maximum temperature difference.

4. The method according to claim 2, wherein The step of determining the compressor frequency information according to the target evaporation temperature includes: Calculate the actual average evaporating temperature of each air conditioner indoor unit; Compressor frequency information is determined according to the target evaporating temperature and the actual average evaporating temperature.

5. The method according to claim 4, wherein The step of calculating the actual average evaporation temperature of each air conditioner indoor unit includes: Obtain the rated capacity information of each air conditioner indoor unit; A weighted average of the target evaporating temperatures is performed according to the rated capacity information to obtain an actual average evaporating temperature.

6. The method according to claim 1, wherein The step of controlling the air outlet operation of each air conditioner indoor unit according to the indoor unit temperature information and the compressor frequency information includes: determining a current operating frequency according to the compressor frequency information, and determining a maximum temperature difference according to the indoor unit temperature information; When the current operating frequency and the maximum temperature difference satisfy the temperature reaching shutdown condition, determining whether the maximum temperature difference of each air conditioner indoor unit satisfies the first low temperature continuous condition; The side air outlets and the lower air outlets of each air-conditioning indoor unit whose maximum temperature difference meets the first low temperature persistence condition are opened simultaneously to reduce the output cooling capacity.

7. The method according to claim 6, wherein After the step of simultaneously opening the side air outlets and the lower air outlets of each air conditioner indoor unit whose maximum temperature difference satisfies the first low temperature persistence condition to reduce the output cooling capacity, the step further includes: Determining whether the maximum temperature difference of each air conditioner indoor unit meets the second low temperature persistence condition; The side air outlets of each air-conditioning indoor unit whose maximum temperature difference meets the second low temperature persistence condition are closed to reduce the output cooling capacity.

8. An air conditioning operation control device, characterized in that: The device comprises: An information collection module is used to calculate the compressor frequency information based on the internal temperature information of each air conditioner when each air conditioner is operating in a preset mode; An operation control module is used to control the operation of the air outlet of each air conditioner indoor unit according to the indoor unit temperature information and the compressor frequency information.

9. An air conditioner, characterized in that: The air conditioner includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program is configured to implement the steps of the air conditioner operation control method according to any one of claims 1 to 7.

10. A storage medium, characterized in that: The storage medium is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, the steps of the air-conditioning operation control method according to any one of claims 1 to 7 are implemented.

Images