Control method and control device of air conditioner and air conditioner

Abstract

The embodiment of the invention discloses a control method and device of an air conditioner and the air conditioner. In the energy-saving mode, the target frequency of frequency reduction operation of the compressor is determined based on the current operation working condition; performing cooperative regulation and control on other operation parameters of the air conditioner based on the target frequency, wherein the other operation parameters at least comprise the rotating speed of an inner fan; cooperative regulation and control are carried out on other operation parameters of the air conditioner, so that the cooling capacity or heat loss caused by frequency reduction operation of the compressor can be reduced. Heat or cold loss caused by frequency reduction of the compressor can be made up, energy saving and comfort are both considered, and the user experience is improved.

Description

Technical Field

[0001] The present application relates to the field of air conditioners, and in particular, to a control method and a control device for an air conditioner, and an air conditioner. Background Art

[0002] In areas where electricity is scarce, users hope to use air conditioners in a more energy-saving way. In related technologies, current frequency limiting or power frequency limiting is usually used to achieve energy saving. However, current frequency limiting or power frequency limiting is prone to power over-limit or excessive frequency limiting, which seriously affects the user's comfort. Summary of the invention

[0003] The embodiments of the present application provide a control method, a control device and an air conditioner for an air conditioner, so as to at least solve the problem that the energy-saving method of current frequency limiting or power frequency limiting adopted in the related technology leads to excessive power or excessive frequency limiting, and seriously affects the comfort of using the air conditioner.

[0004] According to a first aspect of an embodiment of the present application, a control method for an air conditioner is provided, the control method comprising:

[0005] In energy-saving mode, the target frequency of the compressor's reduced frequency operation is determined based on the current operating conditions;

[0006] Coordinately regulating other operating parameters of the air conditioner based on the target frequency, wherein the other operating parameters at least include a rotation speed of an internal fan;

[0007] The coordinated regulation of other operating parameters of the air conditioner can reduce the cooling or heat loss caused by the reduced frequency operation of the compressor.

[0008] The control method of the air conditioner adopts the present embodiment, by directly taking the compressor operating frequency as the control target, to avoid the problem of power exceeding the standard or excessive frequency limiting caused by current frequency limiting or power frequency limiting. At the same time, while controlling the compressor frequency reduction, other operating parameters of the air conditioner are also coordinated and regulated to compensate for the heat or cooling loss caused by the compressor frequency reduction, taking into account both energy saving and comfort, and improving the user experience.

[0009] In combination with the first aspect, in an optional implementation method of the embodiment of the present application, the coordinated control of other operating parameters of the air conditioner includes: increasing the speed of the internal fan based on the target frequency, and the larger the target frequency, the smaller the increment of the speed of the internal fan.

[0010] In combination with the first aspect, in an optional implementation of the embodiment of the present application, the coordinated regulation of other operating parameters of the air conditioner includes: controlling the speed of the internal fan to fluctuate between a first speed and a second speed based on the target frequency, and the larger the target frequency, the smaller the first speed, and / or the larger the target frequency, the larger the second speed;

[0011] Among them: the first speed ≤ the maximum internal fan speed, the second speed ≥ the minimum internal fan speed.

[0012] In combination with the first aspect, in an optional implementation of the embodiment of the present application, the operating condition includes an outdoor ambient temperature, and the target frequency of the compressor frequency reduction operation is determined based on the current operating condition:

[0013] Determine the frequency reduction factor according to the outdoor ambient temperature;

[0014] Determining the compressor target frequency according to the product of the frequency reduction coefficient and the compressor initial frequency;

[0015] controlling the compressor to operate at the target frequency;

[0016] Wherein: the frequency reduction coefficient is less than 1, and the initial frequency is related to the indoor ambient temperature, the set temperature and the set wind speed of the air conditioner.

[0017] In combination with the first aspect, in an optional implementation of the embodiment of the present application, determining the frequency reduction coefficient according to the outdoor ambient temperature includes:

[0018] There is a preset corresponding relationship between the outdoor ambient temperature and the frequency reduction coefficient, wherein the outdoor ambient temperature interval with a larger temperature value corresponds to a smaller frequency reduction coefficient.

[0019] In combination with the first aspect, in an optional implementation of the embodiment of the present application, the operating condition includes the outdoor ambient temperature, and the target speed of the indoor fan is determined in the following manner:

[0020] Determine the speed correction value according to the outdoor ambient temperature;

[0021] Determine the target speed of the internal fan according to the sum of the speed correction value and the set speed of the internal fan;

[0022] Controlling the internal fan to operate at the target speed;

[0023] Wherein, the rotation speed correction value is greater than or equal to 0.

[0024] In combination with the first aspect, in an optional implementation manner of the embodiment of the present application, determining the rotation speed correction value according to the outdoor ambient temperature includes:

[0025] There is a preset corresponding relationship between the outdoor ambient temperature and the rotation speed correction value, wherein the rotation speed correction value corresponding to the outdoor ambient temperature interval with a larger temperature value is larger.

[0026] In combination with the first aspect, in an optional implementation of the embodiment of the present application, the target speed of the internal fan is determined in the following manner, including:

[0027] The gear of the internal fan is increased based on the set gear of the internal fan, or the set speed value is increased based on the set speed of the internal fan.

[0028] In combination with the first aspect, in an optional implementation of the embodiment of the present application, the air conditioner includes multiple energy-saving modes, and different energy-saving modes correspond to at least different compressor target frequencies and whole machine target powers;

[0029] After other operating parameters of the air conditioner are coordinated and regulated based on the target frequency, it is also determined whether the whole machine power is reduced to the whole machine target power corresponding to the current energy-saving mode;

[0030] If the whole machine power is reduced to the target power, the current compression target frequency is maintained;

[0031] If the whole machine power is higher than the target power, the compressor frequency will continue to be reduced based on the current compressor target frequency.

[0032] In combination with the first aspect, in an optional implementation of the embodiment of the present application, the other operating parameters further include an opening state of an air guide plate, and the coordinated regulation of the other operating parameters of the air conditioner based on the target frequency includes: controlling the air guide plate to open in a target state based on the target frequency;

[0033] The target state includes: the air guide plate is in a target opening position, and the smaller the target frequency is, the larger the air volume corresponding to the target opening position of the air guide plate is;

[0034] Or, the air guide plate is in a full wind sweeping state, and the smaller the target frequency is, the greater the wind sweeping frequency of the air guide plate is;

[0035] Alternatively, the air guide plate is in an open state to guide the airflow to the user's location, and the smaller the target frequency is, the more airflow the air guide plate guides to the user's location.

[0036] In combination with the first aspect, in an optional implementation of the embodiment of the present application, the other operating parameters further include a working state of a sweeping blade, and the coordinated regulation of the other operating parameters of the air conditioner based on the target frequency includes: controlling the sweeping blade to be in a target working state based on the target frequency;

[0037] The target working state includes: the wind sweeping blade is in a full wind sweeping state, and the smaller the target frequency is, the greater the wind sweeping frequency of the wind sweeping blade is;

[0038] Alternatively, the target working state includes: the wind sweeping blade is in a working state of guiding the airflow to the location where the user is located, and the smaller the target frequency is, the more airflow the wind sweeping blade guides to the location where the user is located.

[0039] According to the second aspect of an embodiment of the present application, a control device is proposed, which includes one or more processors and a non-temporary computer-readable storage medium storing program instructions. When the one or more processors execute the program instructions, the one or more processors are used to implement the air conditioner control method proposed in the first aspect of the embodiment of the present application.

[0040] According to the third aspect of the embodiment of the present application, an air conditioner is proposed, which adopts the control method of the air conditioner proposed in the first aspect of the embodiment of the present application, or includes the control device proposed in the second aspect of the embodiment of the present application.

[0041] In combination with the third aspect, in an optional implementation of the embodiment of the present application, the air conditioner includes an air outlet, and the air outlet is provided with a plurality of movable wind sweeping blades, and the plurality of wind sweeping blades have different sizes and / or shapes.

[0042] In combination with the third aspect, in an optional implementation of the embodiment of the present application, the multiple wind sweeping blades are arranged along the extension direction of the air outlet, and on the arrangement trajectory of the multiple wind sweeping blades, the sizes of the multiple wind sweeping blades tend to decrease from the middle to both ends. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 This is one of the control flow charts of the air conditioner provided in the embodiment of the present application.

[0044] Figure 2 This is the second control flow chart of the air conditioner provided in the embodiment of the present application.

[0045] Figure 3 This is the third control flow chart of the air conditioner provided in the embodiment of the present application.

[0046] Figure 4 It is a control flow chart of an air conditioner provided in a specific example of the present application.

[0047] Figure 5 This is another control flow chart of an air conditioner provided in a specific example of the present application.

[0048] Figure 6 This is another control flow chart of an air conditioner provided in a specific example of the present application.

[0049] Figure 7 It is a system block diagram of the control device provided in an embodiment of the present application.

[0050] Figure 8 This is one of the arrangements of the wind sweeping blades provided in the embodiments of the present application.

[0051] Fig. 9 This is the second arrangement method of the wind sweeping blades provided in the embodiment of the present application.

[0052] Fig.10 This is the third arrangement method of the wind sweeping blades provided in the embodiment of the present application. DETAILED DESCRIPTION

[0053] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the implementation mode of the present application will be clearly and completely described below in conjunction with the drawings in the implementation mode of the present application. Obviously, the described implementation mode is only a part of the implementation mode of the present application, not all the implementation modes. Based on the implementation mode in the present application, all other implementation modes obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present application.

[0054] It should be understood that the "plurality" mentioned herein refers to two or more than two. In the description of the implementation modes of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B; "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in order to facilitate the clear description of the technical solutions of the implementation modes of the present application, in the implementation modes of the present application, the words "first", "second" and the like are used to distinguish between the same items or similar items with basically the same functions and effects. Those skilled in the art can understand that the words "first", "second" and the like do not limit the quantity and execution order, and the words "first", "second" and the like do not limit certain different

[0055] In addition, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus that includes a series of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not explicitly listed or inherent to such process, method, product, or apparatus.

[0056] In the related technologies, energy-saving strategies that use current as the frequency limit target or power as the frequency limit target have certain problems, which are specifically manifested in that: the current itself is small in value, the power corresponding to its change value is large, the error is also large, and the power frequency limit is prone to power over-limit or excessive frequency limit when the working conditions are not refined. In addition, the related technologies only reduce or limit the frequency of the compressor to achieve the purpose of current frequency limit or power frequency limit, which will lead to a significant decrease in cooling or heating capacity, seriously affecting the user's physical comfort.

[0057] In order to solve the above technical problems, this embodiment proposes a control method for an air conditioner, and the control method includes:

[0058] In energy-saving mode, the target frequency of the compressor's reduced frequency operation is determined based on the current operating conditions;

[0059] Coordinately control other operating parameters of the air conditioner based on the target frequency, where the other operating parameters at least include the speed of the internal fan;

[0060] Coordinated regulation of other operating parameters of the air conditioner can reduce the cooling or heat loss caused by the compressor's reduced frequency operation.

[0061] This embodiment avoids the problem of power exceeding the standard or excessive frequency limiting caused by current frequency limiting or power frequency limiting by directly taking the compressor operating frequency as the control target. At the same time, while controlling the compressor frequency reduction, other operating parameters of the air conditioner are coordinated and regulated to compensate for the heat or cooling loss caused by the compressor frequency reduction, taking into account both energy saving and comfort, and improving the user experience.

[0062] The technical solution of this embodiment is described in detail below in conjunction with the accompanying drawings. The following embodiments and examples can be combined with each other if there is no conflict.

[0063] First, the implementation subject of the control method of the embodiment of the present application is introduced.

[0064] The control method of the embodiment of the present application is applied to an air conditioner. The air conditioner of the embodiment of the present application may be a wall-mounted air conditioner or a cabinet air conditioner.

[0065] The air conditioner includes an indoor unit, which includes an indoor unit housing. The indoor unit housing is provided with a first air inlet and a first air outlet. An air duct, an internal fan and an indoor heat exchange component are provided inside the indoor unit housing. The air duct connects the first air inlet and the second air outlet. The internal fan is arranged in the air duct, and is used to suck the indoor air flow from the air inlet into the air duct and blow it out from the first air outlet. The indoor heat exchanger is arranged between the first air inlet and the internal fan. The air flow entering the indoor unit housing from the first air inlet enters the air duct after heat exchange in the indoor heat exchanger. A movable air guide plate is provided at the first air outlet. The air guide plate can be controlled to be at different opening angles to adjust the air supply area and air supply volume of the air supply port. At the same time, the air guide plate can also be controlled to be in a sweeping mode that switches between different opening angles to enhance air flow. At the same time, different air flow effects can also be achieved by controlling the sweeping frequency.

[0066] The indoor unit also includes a plurality of sweeping blades, and the plurality of sweeping blades are arranged in the extension direction of the first air inlet. Different sweeping blades may adopt the same structure and / or size, or may adopt different structures and / or sizes. Considering that when sweeping blades of the same size are adopted, there will be a situation where the wind speed in the middle of the air outlet is high and the wind speed on both sides is low. In a preferred embodiment, on the arrangement trajectory of the plurality of sweeping blades, the size of the plurality of sweeping blades tends to decrease from the middle to both ends. This makes the air outlet in the middle smaller and the air outlet on both sides larger, thereby improving the air outlet uniformity effect of the first air outlet.

[0067] For example, Figure 8-Figure 10 As shown, the wind sweeping blades include at least one wind sweeping blade A, multiple wind sweeping blades B and multiple wind sweeping blades C, wherein the size of wind sweeping blade A is larger than that of wind sweeping blade B, and the size of wind sweeping blade B is larger than that of wind sweeping blade C. At least one wind sweeping blade A, multiple wind sweeping blades B and multiple wind sweeping blades C are arranged along the extension direction of the first air outlet. The three blades can have the same shape and proportionally scaled areas (such as wind sweeping blade A is 1, wind sweeping blade B is 0.8, and wind sweeping blade C is 0.6, the data is only an example), or different shapes can be used. The quantity selection can be matched according to the specific model. Figure 8 As shown, there are 2 sweeping blades A in the middle, 2 sweeping blades B on each side of the 2 sweeping blades A, and 2 sweeping blades C at the two ends (2 sweeping blades A + 4 sweeping blades B + 4 sweeping blades C). Fig. 9 As shown, there are 4 sweeping blades A in the middle, 1 sweeping blade B on each side of the 4 sweeping blades A, and 2 sweeping blades C at the two ends (4 sweeping blades A + 2 sweeping blades B + 4 sweeping blades C). Fig.10 As shown, there are 4 sweeping blades A in the middle, 2 sweeping blades B on each side of the 4 sweeping blades A, and 1 sweeping blade C at each end (4 sweeping blades A + 4 sweeping blades B + 2 sweeping blades C).

[0068] The air conditioner also includes an outdoor unit, which includes an outdoor unit housing, a compressor, an outdoor fan and an outdoor heat exchanger. The outdoor unit housing is provided with a second air inlet and a second air outlet. The outdoor heat exchanger is arranged in the outdoor unit housing and is arranged opposite to the second air outlet. The outdoor fan is arranged at the second air outlet. The compressor is arranged in the outdoor unit housing. The compressor is connected with the outdoor heat exchanger, the throttling device located in the indoor unit and the indoor heat exchanger to form a refrigerant circulation loop.

[0069] The control method of this embodiment is described in detail below.

[0070] according to Figure 1 The control flow chart of the air conditioner comprises the following steps:

[0071] S11. In energy-saving mode, determining a target frequency for the compressor to reduce frequency based on current operating conditions.

[0072] Specific, combined Figure 4-Figure 6 The energy-saving mode of this embodiment can be executed according to the control instruction of the user, or it can be automatically executed according to the peak power consumption period when the air conditioner is started and operated, or it can be automatically executed according to the total power consumption of the user in a fixed period. After the air conditioner enters the energy-saving mode, the current operating condition of the air conditioner is first determined, and the current operating condition includes at least one of the indoor ambient temperature and the outdoor ambient temperature. For example, after entering the energy-saving mode, the indoor and outdoor ambient temperatures, the set temperature, and the set wind speed are obtained.

[0073] After determining the current operating conditions, the target frequency of the compressor's frequency reduction operation can be determined based on the current operating conditions, and the target frequency must meet energy-saving requirements while not sacrificing too much comfort of the indoor environment. After determining the target frequency of the compressor's frequency reduction operation, the compressor can be controlled to operate directly at the target frequency, which can effectively avoid the problem of excessive power or excessive frequency limitation caused by current frequency limitation or power frequency limitation.

[0074] S12. Coordinately control other operating parameters of the air conditioner based on the target frequency.

[0075] Specific, combined Figure 4-Figure 6 , after the compressor runs at the target frequency reduction, this embodiment also coordinates and regulates other operating parameters of the air conditioner based on the target frequency to reduce or even compensate for the heat or cooling loss caused by the compressor frequency reduction operation, thereby ensuring the comfort of the indoor environment while meeting the energy-saving requirements and improving the user experience. The other operating parameters at least include the speed of the internal fan, and in other achievable methods, the other operating parameters also include the opening state of the air guide plate.

[0076] In an optional implementation of this embodiment, the coordinated regulation of other operating parameters of the air conditioner includes: increasing the speed of the internal fan based on the target frequency, and the larger the target frequency, the smaller the increment of the speed of the internal fan.

[0077] Specifically, since the compressor frequency reduction operation will lead to a decrease in cooling capacity or heating capacity, affecting the user's comfort, this embodiment increases the speed of the internal fan to increase the indoor air flow, thereby compensating for the decrease in cooling capacity or heating capacity to a certain extent. In addition, the larger the target frequency, the less the decrease in the compressor cooling capacity or heating capacity, and the smaller the increment of the internal fan speed, which meets the requirements of energy saving and consumption reduction while ensuring the comfort of the indoor environment.

[0078] In another optional implementation of this embodiment, the coordinated regulation of other operating parameters of the air conditioner includes: controlling the internal fan speed to fluctuate between a first speed and a second speed based on the target frequency, and the larger the target frequency, the smaller the first speed, and / or the larger the target frequency, the larger the second speed. Wherein: the first speed ≤ the maximum internal fan speed, and the second speed ≥ the minimum internal fan speed.

[0079] Specifically, since the frequency reduction operation of the compressor will cause a decrease in cooling capacity or heating capacity, affecting the user's comfort, this embodiment makes the internal fan fluctuate between the first speed and the second speed, and dynamically adjusts the internal fan speed to increase indoor air flow, thereby compensating for the decrease in cooling capacity or heating capacity to a certain extent. In addition, the larger the target frequency, the less the cooling capacity or heating capacity of the compressor decreases, the smaller the first speed, and the larger the second speed, which meets the requirements of energy saving and consumption reduction while ensuring the comfort of the indoor environment. Exemplarily, the internal fan speed is controlled to fluctuate between the first speed and the second speed in the form of a sine wave or a cosine wave based on the target frequency.

[0080] In an optional implementation of this embodiment, refer to Figure 2 The operating conditions include the outdoor ambient temperature. Determining the target frequency of the compressor frequency reduction operation based on the current operating conditions includes the following steps:

[0081] S21, determining a frequency reduction coefficient according to the outdoor ambient temperature;

[0082] S22, determining the compressor target frequency according to the product of the frequency reduction coefficient and the compressor initial frequency;

[0083] S23, control the compressor to operate at the target frequency.

[0084] Specific, combined Figure 4-Figure 6, after determining the outdoor ambient temperature, the frequency reduction coefficient k can be determined according to the outdoor ambient temperature, wherein the frequency reduction coefficient k is less than 1. In one example, the frequency reduction coefficient is determined according to the outdoor ambient temperature, including: the outdoor ambient temperature and the frequency reduction coefficient have a preset corresponding relationship, and after determining the frequency reduction coefficient k, the compressor target frequency can be determined according to the product of the frequency reduction coefficient k and the initial frequency F of the compressor, that is, the compressor target frequency is F*k, wherein the initial frequency is related to the indoor ambient temperature, the set temperature and the set wind speed of the air conditioner. Different outdoor ambient temperature intervals correspond to different frequency reduction coefficients k, and the energy consumption of the air conditioner when operating in an outdoor ambient temperature interval with a larger temperature value is higher, so the corresponding frequency reduction coefficient k is smaller to reduce energy consumption.

[0085] In other achievable methods, determining the target frequency of the compressor's reduced-frequency operation based on the current operating conditions also includes: determining the frequency reduction value based on the outdoor ambient temperature, and the outdoor ambient temperature and the compressor reduction value have a preset corresponding relationship. After determining the frequency reduction value, the compressor target frequency can be determined based on the difference between the compressor's initial frequency and the frequency reduction value. Different outdoor ambient temperature ranges correspond to different frequency reduction values, and the air conditioner has a higher energy consumption when operating in an outdoor ambient temperature range with a larger temperature value. Therefore, the corresponding frequency reduction value k is larger to reduce energy consumption.

[0086] In an optional implementation of this embodiment, refer to Figure 3 The operating conditions include the outdoor ambient temperature, and the target speed of the indoor fan is determined in the following way:

[0087] S31, determining a rotation speed correction value according to the outdoor ambient temperature;

[0088] S32, determining the target speed of the internal fan according to the sum of the speed correction value and the set speed of the internal fan;

[0089] S33, controlling the internal fan to run at a target speed;

[0090] Among them, the speed correction value is greater than or equal to 0.

[0091] Specific, combined Figure 4-Figure 6, after determining the outdoor ambient temperature, the speed correction value can be determined according to the outdoor ambient temperature, wherein the speed correction value is greater than or equal to 0. In one example, determining the speed correction value according to the outdoor ambient temperature includes: the outdoor ambient temperature and the speed correction value have a preset corresponding relationship, after determining the speed correction value ΔR, the target speed of the indoor fan can be determined according to the sum of the speed correction value ΔR and the set speed R of the indoor fan, that is, the target speed of the indoor fan is R+ΔR, wherein different outdoor ambient temperature intervals correspond to different speed correction values ​​ΔR, and the corresponding compressor target frequency is lower when the air conditioner is running in an outdoor ambient temperature interval with a larger temperature value. In order to reduce or even compensate for the cooling or heat loss of the compressor, the speed correction value ΔR corresponding to the outdoor ambient temperature interval with a larger temperature value is larger, so as to ensure the comfort of the indoor ambient temperature.

[0092] In some embodiments, the air conditioner includes multiple energy-saving modes, and different energy-saving modes correspond to at least different compressor target frequencies and whole machine target powers. Exemplarily, different energy-saving modes correspond to different compressor frequency reduction coefficients and power reduction coefficients, the compressor target frequency is the product of the compressor initial frequency and the frequency reduction coefficient, and the whole machine target power is the product of the rated power and the power reduction coefficient.

[0093] Before entering the energy-saving mode, the user selects the energy-saving mode according to his own needs. For example, the air conditioner includes energy-saving mode 1 and energy-saving mode 2, wherein the power reduction coefficient of the air conditioner in energy-saving mode 1 is 80%, and the power reduction coefficient of the air conditioner in energy-saving mode 2 is 60%. Under the same outdoor ambient temperature, the energy-saving mode with a larger power reduction coefficient has a larger frequency reduction coefficient. In other embodiments, different energy-saving modes also correspond to different internal fan speed correction values. Under the same outdoor environment, the energy-saving mode with a larger power reduction coefficient has a smaller internal fan speed correction value.

[0094] Table 1 below is a table of parameters related to the fan speed, compressor frequency and indoor ambient temperature under different energy-saving modes.

[0095] Table 1. Parameters of internal fan target speed and compressor target frequency under different energy-saving modes

[0096]

[0097]

[0098] Table 2 and Table 3 below are parameter tables showing the speed of the internal fan, the frequency of the compressor and the indoor ambient temperature under cooling and heating conditions, respectively, according to a specific example.

[0099] Table 2. Parameters of internal fan target speed and compressor target frequency under different energy-saving modes (refrigeration conditions)

[0100]

[0101] Table 3. Parameters of internal fan target speed and compressor target frequency under different energy-saving modes (heating condition)

[0102]

[0103] It should be noted that R in Tables 1 to 3 降1 / 2 、F 降1 / 2 is the target speed of the internal fan and the target frequency of the compressor in the energy-saving mode. R, F are the set speed of the internal fan and the initial frequency of the compressor in the normal operation mode. T 低温 、T 常温 、T 高温 , ΔR 低温1 / 2 , ΔR 常温1 / 2 , ΔR 高温1 / 2 , frequency reduction factor k 低温1 / 2 , k 常温1 / 2 , k 高温1 / 2 Parameters such as ΔR are determined according to the system operation status and have different values ​​in cooling and heating modes. 低温1 >ΔR 低温2 , ΔR 低温1 Value range [20, 80], ΔR 低温2 Value range [0, 40], ΔR 常温1 >ΔR 常温2 , ΔR 常温1 Value range [50, 110], ΔR 常温2 Value range [10, 60], ΔR 高温1 >ΔR 高温2 , ΔR 高温1 Value range [70, 130], ΔR 高温2 The value range is [30, 90], k 低温1 >k 常温1 >k 高温1 , k 低温1 The value range is [0.55, 0.75], k 常温1 The value range is [0.50, 0.70], k 高温1 The value range is [0.45, 0.65], k 低温2 >k 常温2 >k 高温2 , k 低温2 The value range is [0.75, 0.95], k 常温2 The value range is [0.70, 0.90], k 高温2 The value range is [0.65, 0.85]. In addition, the data in Table 2 and Table 3 are only sample data, and the actual data may vary depending on the model.

[0104] In other achievable methods, the target speed of the indoor fan is determined in the following manner, which also includes: increasing the gear of the indoor fan on the basis of the set gear of the indoor fan, or increasing the set speed value on the basis of the set speed of the indoor fan. For example, after entering the energy-saving mode, based on the target power of the compressor, the gear of the indoor fan is increased on the basis of the set wind speed. For example, based on the current target frequency of the compressor, the indoor wind gear is increased by +1 on the basis of the set wind speed, and the wind speed is set to the silent gear, then the gear of the indoor fan is changed to the low wind speed. If the gear is set to the low wind speed 1, the gear of the indoor fan is changed to the low wind speed 2, and so on. If it is set to the super gear (highest wind speed), a certain value (such as 50 to 150 rpm) is added to the original speed to enhance indoor air convection, compensate for the reduction in cooling capacity / heating capacity caused by the compressor frequency reduction, and improve comfort. The following Table 4 is a parameter table related to the indoor fan speed, compressor frequency and indoor ambient temperature under different energy-saving modes.

[0105] Table 4. Parameters of internal fan speed and compressor frequency under different energy-saving modes

[0106]

[0107]

[0108] Table 4 F 降1 / 2 is the compressor target frequency in energy-saving mode, F is the internal fan set speed and compressor initial frequency in normal operation mode, T 低温 、T 常温 、T 高温 , frequency reduction factor k 低温1 / 2 , k 常温1 / 2 , k 高温1 / 2 Parameters such as ΔR are determined according to the system operating conditions and have different values ​​in cooling and heating modes. ΔR is the speed increment when the indoor fan is at the maximum speed.

[0109] In a preferred embodiment, in order to ensure energy saving and comfort at the same time under different compressor target frequencies, this embodiment also adjusts the internal fan gear according to the compressor target frequency, that is, the greater the compressor target frequency, the higher the internal fan gear is increased.

[0110] Of course, the adjustment of the internal fan speed can also be directly based on the set internal fan speed. Increase the set speed value. For example, set the internal fan speed to 300 rpm, and increase the internal fan speed by 50 to 150 rpm based on the current compressor target frequency. The greater the compressor target frequency, the smaller the increment of the internal fan speed.

[0111] In an optional implementation of this embodiment, combined with Figure 5 and Figure 6Flowchart, after the other operating parameters of the air conditioner are coordinated and regulated based on the target frequency, it is also determined whether the whole machine power is reduced to the whole machine target power corresponding to the current energy-saving mode; if the whole machine power is reduced to the target power, the current compression target frequency is maintained; if the whole machine power is higher than the target power, the compressor frequency is continued to be reduced on the basis of the current compressor target frequency. For example, after the compressor target frequency is determined, and the other operating parameters of the air conditioner are coordinated and regulated based on the target frequency so that the whole machine operating power is reduced, it is determined whether the whole machine power at this time is less than or equal to the whole machine target power, wherein the whole machine target power is the product of the power reduction coefficient and the rated power, and the power reduction coefficient is related to the frequency reduction mode. If the whole machine power is greater than the whole machine target power, then the compressor target frequency is further reduced by one gear (such as 4Hz) based on the current compressor target frequency. If the whole machine power is less than or equal to the whole machine target power, it continues to operate at the compressor target frequency. This embodiment can effectively ensure that the energy consumption of the air conditioner is within the energy-saving requirements required by the user.

[0112] In an optional implementation of this embodiment, combined with Figure 4-Figure 6 The flow chart of FIG. 1 shows that other operating parameters also include the opening state of the air guide plate. Based on the target frequency, other operating parameters of the air conditioner are coordinated and regulated, including: controlling the air guide plate to open in the target state based on the target frequency; wherein:

[0113] The target state includes: the air guide plate is in the target opening position, and the smaller the target frequency is, the larger the air volume corresponding to the target opening position of the air guide plate is, so as to regulate the air supply of the air conditioner to the indoor environment, compensate for the reduction in cooling capacity / heating capacity caused by frequency reduction, and improve comfort.

[0114] Or, the air guide plate is in a full sweeping state, and the smaller the target frequency, the greater the sweeping frequency of the air guide plate; the full sweeping state means that the air guide plate is in a full sweeping mode up, down, left and right to enhance indoor air convection, compensate for the reduction in cooling capacity / heating capacity caused by frequency reduction, and improve comfort.

[0115] Or, the air guide plate is in an open state to guide the airflow to the user's location, and the smaller the target frequency, the more airflow the air guide plate guides to the user's location. For example, by using infrared temperature measurement or image recognition technology to determine the user's location, and by adjusting the opening angle of the air guide plate to guide the airflow to the user's location, directional air supply helps improve user comfort and compensate for the reduction in cooling capacity / heating capacity caused by frequency reduction.

[0116] In an optional implementation of this embodiment, combined with Figure 5 and Figure 6 Flow chart, other operating parameters also include the working state of the air sweep blade, and the coordinated regulation of other operating parameters of the air conditioner based on the target frequency includes: controlling the air sweep blade to be in a target working state based on the target frequency;

[0117] The target working state includes: the sweeping blades are in full sweeping state, and the smaller the target frequency is, the greater the sweeping frequency of the sweeping blades is, so as to enhance indoor air convection, compensate for the reduction in cooling capacity / heating capacity caused by frequency reduction, and improve comfort.

[0118] Or, the target working state includes: the sweeping blades are in a working state of guiding the airflow to the user's location, and the smaller the target frequency, the more airflow the sweeping blades guide to the user's location. By adjusting the position of the sweeping blades to guide the airflow to the user's location, directional air supply helps to improve user comfort and compensate for the reduction in cooling capacity / heating capacity caused by frequency reduction.

[0119] In some embodiments, in combination Figure 4-Figure 6 , after the compressor runs at the target frequency and other operating parameters of the air conditioner are systematically regulated and maintained for the set time t1, it is also determined whether to exit the energy-saving mode. If the energy-saving mode is exited, it is further determined whether the air conditioner is in the on state. If the air conditioner is in the on state, it runs according to the set program. If the energy-saving mode is not exited, the air conditioner operating conditions are re-acquired, that is, the indoor and outdoor ambient temperatures, the set temperature, and the set wind speed are re-collected, the outdoor ambient temperature range is determined, and the compressor target frequency is re-determined according to the latest outdoor ambient temperature, and the latest compressor target frequency is given to coordinately regulate other operating parameters of the air conditioner until the energy-saving mode is exited or the air conditioner is shut down.

[0120] In the above-mentioned embodiments of the present application, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments. The steps shown in the relevant flow charts can be executed in a computer system such as a set of computer executable instructions, and although the logical order is shown in the flow chart, in some cases, the steps shown or described can be executed in an order different from that here. In other words, the order of steps described in the foregoing embodiments is only an example, and reasonable adjustment of the order of steps based on the content of the embodiments of the present application is also within the scope of protection of the embodiments of the present application.

[0121] An embodiment of the present application also provides a control device, which includes one or more processors and a non-temporary computer-readable storage medium storing program instructions. When the one or more processors execute the program instructions, the one or more processors are used to implement the air conditioner control method proposed in the above embodiment.

[0122] Specifically, Figure 7As shown, the control device includes a processor 100, at least one communication bus 200, a user interface 300, at least one external communication interface 400 and a memory 500. The communication bus 200 is configured to realize the connection and communication between these components. The user interface 300 may include a display screen, and the external communication interface 400 may include a standard wired interface and a wireless interface. The control method of the air conditioner is stored in the memory 500. The processor 100 is used to adopt the above method when executing the control method of the air conditioner stored in the memory 500.

[0123] The embodiments of the present application also propose an air conditioner, which adopts any one of the air conditioner control methods proposed in the above embodiments, or includes the control device proposed in the above embodiments.

[0124] In an optional implementation of this embodiment, the air conditioner includes an air outlet, and the air outlet is provided with a plurality of movable air sweeping blades, and the plurality of air sweeping blades have different sizes and / or shapes.

[0125] Preferably, the plurality of air sweeping blades are arranged along the extension direction of the air outlet, and on the arrangement trajectory of the plurality of air sweeping blades, the sizes of the plurality of air sweeping blades tend to decrease from the middle to both ends.

[0126] The structure of the above air conditioner has been introduced in detail in the main part of the implementation of the control method, and will not be repeated here.

[0127] The description of the above computer program product, computer-readable storage medium, and control device is similar to the description of the above method implementation, and has similar beneficial effects as the method implementation. For technical details not disclosed in the computer program product, computer-readable storage medium, and control device of this application, please refer to the description of the method implementation of this application for understanding.

[0128] The sequence of numbers or introduction of the implementation methods of this application is for description only and does not represent the advantages or disadvantages of the implementation methods.

[0129] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device implementation described above is only schematic. For example, the division of the units can be a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0130] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed over multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0131] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0132] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network or other programmable device. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that can be accessed by a computer, or a data storage device such as a server or data center that includes one or more available media integrated. The available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a digital versatile disc (DVD)), or a semiconductor medium (e.g., a solid state disk (SSD)), etc. It is worth noting that the computer-readable storage medium mentioned in the embodiments of the present application may be a non-volatile storage medium, in other words, a non-transient storage medium.

[0133] It should be noted that the information (including but not limited to user device information, user personal information, etc.), data (including but not limited to data used for analysis, stored data, displayed data, etc.) and signals involved in the implementation of this application are all authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with the relevant laws, regulations and standards of the relevant countries and regions. For example, the scene data of the current frame in the three-dimensional virtual scene, the device information of the client, and the scene interaction information involved in the implementation of this application are all obtained with full authorization.

[0134] The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A method for controlling an air conditioner, characterized in that: The control method comprises: In energy-saving mode, the target frequency of the compressor's reduced frequency operation is determined based on the current operating conditions; Coordinately regulating other operating parameters of the air conditioner based on the target frequency, wherein the other operating parameters at least include an internal fan speed; The coordinated regulation of other operating parameters of the air conditioner can reduce the cooling or heat loss caused by the reduced frequency operation of the compressor.

2. The air conditioner control method according to claim 1, characterized in that: The coordinated regulation of other operating parameters of the air conditioner includes: increasing the speed of the internal fan based on the target frequency, and the larger the target frequency is, the smaller the increment of the speed of the internal fan is.

3. The air conditioner control method according to claim 1, characterized in that: The coordinated regulation of other operating parameters of the air conditioner includes: controlling the speed of the internal fan to fluctuate between a first speed and a second speed based on the target frequency, and the larger the target frequency, the smaller the first speed, and / or the larger the target frequency, the larger the second speed; Among them: the first speed ≤ the maximum internal fan speed, the second speed ≥ the minimum internal fan speed.

4. The air conditioner control method according to any one of claims 1 to 3, characterized in that: The operating condition includes the outdoor ambient temperature, and the target frequency of the compressor reduced frequency operation is determined based on the current operating condition: Determine the frequency reduction factor according to the outdoor ambient temperature; Determining the compressor target frequency according to the product of the frequency reduction coefficient and the compressor initial frequency; controlling the compressor to operate at the target frequency; Wherein: the frequency reduction coefficient is less than 1, and the initial frequency is related to the indoor ambient temperature, the set temperature and the set wind speed of the air conditioner.

5. The air conditioner control method according to claim 4, characterized in that: Determining the frequency reduction coefficient according to the outdoor ambient temperature includes: There is a preset corresponding relationship between the outdoor ambient temperature and the frequency reduction coefficient, wherein the outdoor ambient temperature interval with a larger temperature value corresponds to a smaller frequency reduction coefficient.

6. The air conditioner control method according to claim 1 or 2, characterized in that: The operating conditions include the outdoor ambient temperature, and the target speed of the indoor fan is determined in the following manner: Determine the speed correction value according to the outdoor ambient temperature; Determine the target speed of the internal fan according to the sum of the speed correction value and the set speed of the internal fan; Controlling the internal fan to operate at the target speed; Wherein, the rotation speed correction value is greater than 0.

7. The air conditioner control method according to claim 6, characterized in that: Determining the rotation speed correction value according to the outdoor ambient temperature includes: There is a preset corresponding relationship between the outdoor ambient temperature and the rotation speed correction value, wherein the rotation speed correction value corresponding to the outdoor ambient temperature interval with a larger temperature value is larger.

8. The air conditioner control method according to claim 1 or 2, characterized in that: The target speed of the internal fan is determined by the following methods, including: The gear of the internal fan is increased based on the set gear of the internal fan, or the set speed value is increased based on the set speed of the internal fan.

9. The air conditioner control method according to claim 1, characterized in that: The air conditioner includes a plurality of energy-saving modes, and different energy-saving modes correspond to at least different compressor target frequencies and whole machine target powers; After other operating parameters of the air conditioner are coordinated and regulated based on the target frequency, it is also determined whether the whole machine power is reduced to the whole machine target power corresponding to the current energy-saving mode; If the whole machine power is reduced to the target power, the current compression target frequency is maintained; If the whole machine power is higher than the target power, the compressor frequency will continue to be reduced based on the current compressor target frequency.

10. The air conditioner control method according to claim 1, characterized in that: The other operating parameters also include an opening state of an air guide plate, and the coordinated regulation of other operating parameters of the air conditioner based on the target frequency includes: controlling the air guide plate to open in a target state based on the target frequency; The target state includes: the air guide plate is in a target opening position, and the smaller the target frequency is, the larger the air volume corresponding to the target opening position of the air guide plate is; Or, the air guide plate is in a full wind sweeping state, and the smaller the target frequency is, the greater the wind sweeping frequency of the air guide plate is; Alternatively, the air guide plate is in an open state to guide the airflow to the user's location, and the smaller the target frequency is, the more airflow the air guide plate guides to the user's location.

11. The air conditioner control method according to claim 1, characterized in that: The other operating parameters also include the working state of the sweeping blades, and the coordinated regulation of the other operating parameters of the air conditioner based on the target frequency includes: controlling the sweeping blades to be in a target working state based on the target frequency; The target working state includes: the wind sweeping blade is in a full wind sweeping state, and the smaller the target frequency is, the greater the wind sweeping frequency of the wind sweeping blade is; Alternatively, the target working state includes: the wind sweeping blade is in a working state of guiding the airflow to the location where the user is located, and the smaller the target frequency is, the more airflow the wind sweeping blade guides to the location where the user is located.

12. A control device, comprising one or more processors and a non-transitory computer-readable storage medium storing program instructions, wherein when the one or more processors execute the program instructions, the one or more processors are used to implement the air conditioner control method according to any one of claims 1 to 11.

13. An air conditioner, characterized in that: The air conditioner adopts the air conditioner control method described in any one of claims 1 to 11, or includes the control device described in claim 12.

14. The air conditioner according to claim 13, characterized in that: The air conditioner comprises an air outlet, and the air outlet is provided with a plurality of movable wind sweeping blades, and the plurality of wind sweeping blades have different sizes and / or shapes.

15. The air conditioner according to claim 14, characterized in that: The plurality of wind sweeping blades are arranged along the extension direction of the air outlet, and on the arrangement track of the plurality of wind sweeping blades, the sizes of the plurality of wind sweeping blades tend to decrease from the middle to both ends.

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