Air conditioning equipment and control method of air conditioning equipment

Abstract

The invention relates to air conditioning equipment and a control method of the air conditioning equipment. The equipment comprises an indoor unit, an outdoor unit and a control unit, the at least one air valve supplies air to the corresponding temperature control space through the at least one air outlet; the at least one controller is configured to receive an adjusting instruction for the air valve and obtain an opening parameter, carried by the adjusting instruction, of the air valve; determining global air duct static pressure based on the opening parameter of the air valve and a preset corresponding relation between the opening parameter of the air valve and the global air duct static pressure; determining the target operation power required by the indoor fan for maintaining the global air duct static pressure; and the actual operation power of the indoor fan is monitored, and under the condition that the absolute value of the power difference between the actual operation power and the target operation power is larger than or equal to a preset power difference threshold value, the rotating speed of the indoor fan is adjusted till the absolute value of the power difference is smaller than the preset power difference threshold value. The adjusting flexibility of the air conditioning equipment can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioning equipment, and particularly relates to an air conditioning equipment and a control method of the air conditioning equipment. BACKGROUND

[0002] Air conditioning equipment generally refers to equipment for artificially adjusting and controlling parameters such as temperature, humidity and flow rate of ambient air in a room to be adjusted. The air conditioning equipment usually adopts a single-fan multi-damper installation mode, that is, an indoor fan sends out air to each room through an air duct, and each damper installed at an air outlet end of the air duct can send air through an air outlet.

[0003] However, in this installation mode, if a user adjusts a damper of any room, the resistance of the entire air duct will be affected, which easily causes the air volume of other rooms without damper adjustment to change. It can be seen that the current air conditioning equipment has the problem of insufficient flexibility in adjustment. SUMMARY

[0004] The present application provides an air conditioning equipment and a control method of the air conditioning equipment to solve the problem of insufficient flexibility in adjustment of the air conditioning equipment.

[0005] In a first aspect, some embodiments provide an air conditioning equipment, comprising:

[0006] an indoor unit, which is internally provided with an indoor fan;

[0007] at least one damper, which sends air to a corresponding temperature-controlled space through at least one air outlet;

[0008] at least one controller, which is configured to:

[0009] receive an adjustment instruction for the damper and acquire an opening parameter of the damper carried by the adjustment instruction;

[0010] determine a global air duct static pressure based on the opening parameter of the damper and a preset corresponding relationship between the opening parameter of the damper and the global air duct static pressure;

[0011] determine a target running power of the indoor fan required to maintain the global air duct static pressure;

[0012] monitor an actual running power of the indoor fan, and adjust a rotating speed of the indoor fan until an absolute value of a power difference between the actual running power and the target running power is less than a preset power difference threshold, in a case where the absolute value of the power difference is greater than or equal to the preset power difference threshold.

[0013] The air conditioning equipment provided by the technical scheme can obtain the opening parameter of the air valve when receiving the adjustment instruction for the air valve, determine the global air duct static pressure based on the corresponding relationship between the opening parameter of the air valve and the air duct static pressure, and then deduce the target running power required by the indoor fan to maintain the global air duct static pressure. Subsequently, by comparing the power difference absolute value between the target running power and the actual running power of the indoor fan, the fan rotating speed is adjusted in the case that the power difference absolute value is greater than or equal to the power difference threshold value, until the power difference absolute value is less than the preset power difference threshold value, at which time, the air duct static pressure has basically approached the global air duct static pressure. In this way, after the opening of any air valve is changed, the stability of the air duct static pressure can be maintained by the rapid adaptive adjustment of the fan power. In the stable state of the global air duct static pressure, the gas flow in each air duct is determined by the opening of the air valve corresponding to the air duct, so that the change of the opening of any air valve will only change the air volume of the air duct where the air valve is located, and will not affect the air volume of other air ducts, effectively reducing the interference of the air volume of other temperature control spaces caused by the user adjusting the opening of the air valve of any temperature control space, and improving the flexibility of the air conditioning equipment adjustment and the user experience.

[0014] In the second aspect, some embodiments also provide a control method of an air conditioning equipment, applied to the air conditioning equipment provided in the first aspect, comprising:

[0015] receiving an adjustment instruction for the air valve, and obtaining the opening parameter of the air valve carried by the adjustment instruction;

[0016] determining the global air duct static pressure based on the opening parameter of the air valve and the preset corresponding relationship between the opening parameter of the air valve and the global air duct static pressure;

[0017] determining the target running power required by the indoor fan to maintain the global air duct static pressure;

[0018] monitoring the actual running power of the indoor fan, and adjusting the rotating speed of the indoor fan in the case that the power difference absolute value between the actual running power and the target running power is greater than or equal to the preset power difference threshold value, until the power difference absolute value is less than the preset power difference threshold value.

[0019] The control method of the air conditioning equipment provided by the technical scheme comprises the following steps: when a regulating instruction for a wind valve is received, an opening parameter of the wind valve is obtained; a global air duct static pressure is determined based on a corresponding relationship between the opening parameter of the wind valve and the air duct static pressure; and a target operating power required for an indoor fan to maintain the global air duct static pressure is determined. Subsequently, by comparing a power difference absolute value between the target operating power and an actual operating power of the indoor fan, the fan rotating speed is adjusted in a case where the power difference absolute value is greater than or equal to a power difference threshold value, until the power difference absolute value is less than a preset power difference threshold value, at which time the air duct static pressure has basically approached the global air duct static pressure. In this way, after the opening of any wind valve is changed, the air duct static pressure can be maintained stable through rapid adaptive adjustment of the fan power. In a state where the global air duct static pressure is stable, the gas flow in each air duct is determined by the opening of the wind valve corresponding to the air duct, and therefore, the change of the opening of any wind valve will only change the air volume of the air duct where the wind valve is located, and will not affect the air volume of other air ducts, effectively reducing the interference of the air volume of other temperature control spaces caused by the user adjusting the opening of the wind valve of any temperature control space, and improving the flexibility of the air conditioning equipment adjustment and the user experience. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort.

[0021] Figure 1 The structural schematic diagram of the air conditioning equipment provided by some embodiments of the present application is shown in the figure.

[0022] Figure 2 The air outlet schematic diagram of the air conditioning equipment provided by some embodiments of the present application is shown in the figure.

[0023] Figure 3 The connection schematic diagram between the drive-by-wire controller, the zone controller and the controller provided by some embodiments of the present application is shown in the figure.

[0024] Figure 4 The interaction schematic diagram between the drive-by-wire controller and the zone controller provided by some embodiments of the present application is shown in the figure.

[0025] Figure 5 The wind valve control interface of the drive-by-wire controller provided by some embodiments of the present application is shown in the figure.

[0026] Figure 6 The interaction schematic diagram between the drive-by-wire controller, the zone controller and the controller provided by some embodiments of the present application is shown in the figure.

[0027] Figure 7 Flowchart of the control method of the air conditioning device provided for some embodiments of the present application;

[0028] Figure 8 Flowchart of the power difference gear consistency judgment provided for some embodiments of the present application;

[0029] Figure 9 Flowchart of the operation after the air conditioning device is powered on provided for some embodiments of the present application;

[0030] Figure 10 Flowchart of the air valve reset provided for some embodiments of the present application;

[0031] Figure 11 Flowchart of the control method of the air conditioning device provided for a specific embodiment of the present application;

[0032] Figure 12 Control device of the air conditioning device provided for some embodiments of the present application. DETAILED DESCRIPTION

[0033] The embodiments will be described in detail below with reference to the drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following embodiments are not meant to represent all implementations consistent with the present application. Rather, they are merely examples of systems and methods consistent with some aspects of the present application as detailed in the appended claims.

[0034] It should be noted that the brief description of the terms in the present application is only for the convenience of understanding the following described implementations, and is not intended to limit the implementations of the present application. Unless otherwise specified, these terms should be understood according to their ordinary and general meanings.

[0035] The terms "first", "second", "third", and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar or like objects or entities, and do not necessarily mean to limit the specific order or sequence, unless otherwise noted. It should be understood that the terms used in this way can be interchanged under appropriate circumstances.

[0036] The terms "include" and "have" and any variations thereof are intended to cover but not exclusive inclusion, for example, a product or device including a series of components does not have to be limited to all components clearly listed, but can include other components not clearly listed or inherent to these products or devices.

[0037] The term "module" refers to any known or later developed hardware, software, firmware, artificial intelligence, fuzzy logic, or combination of hardware and / or software codes that can perform the function related to the element.

[0038] Referring to Figure 1 A schematic structural diagram of an air conditioning device is provided for the embodiments of the present application. In the present embodiment, the air conditioning device is a central air conditioner. It specifically comprises: an indoor unit 1, at least one air valve 2, and at least one controller 3.

[0039] The indoor unit 1 is installed in an indoor environment and is mostly hidden in a ceiling or a wall, with only an air outlet exposed. The indoor unit 1 comprises a casing for protecting the internal components of the indoor unit 1. The lower part of the casing is a grid or mesh as an air inlet through which indoor air can enter the casing. The upper part of the casing is a grid or mesh as an air outlet through which air in the casing can flow to the indoor environment. The indoor unit 1 further comprises an indoor fan 11 arranged in the casing for driving indoor air outside the casing to enter the casing and driving air in the casing to flow in the direction of the air outlet.

[0040] The air valve 2 is an air volume regulating valve for controlling the air outlet volume in a room and is installed on the air outlet pipeline 4 of the indoor unit 1. A user can change the air outlet volume of a corresponding room by adjusting the opening degree of the air valve 2. For example, when the user adjusts the opening degree of an air valve 2 to be small, the air outlet volume of the room where the air valve 2 is located will decrease, and vice versa. In the present embodiment, the number of air valves 2 is not limited and can be set according to actual conditions, such as 5 or 8. The opening degree of the air valve 2 can range from 0% (percent) to 100%, with 0% indicating that the air valve 2 is completely closed and 100% indicating that the air valve 2 is fully open.

[0041] The controller 3 is in communication connection with the indoor unit 1 and can send / receive signals to each other, thereby achieving information acquisition and control instruction issuance of each controllable component in the indoor unit 1. In the present embodiment, the controller 3 is used to control the operation of the indoor fan 11. In actual applications, the controller 3 can also control the operation of controllable components such as the compressor and the expansion valve of the indoor unit 1. In addition, the controller 3 can be in communication connection with an outdoor unit to control the operation of controllable components such as an outdoor fan in the outdoor unit.

[0042] Continuing to refer to Figure 2 , a schematic air outlet diagram of the air conditioning device is provided. The air outlet pipeline 4 is composed of multiple air ducts 41, each of which is connected to a temperature-controlled space, and the indoor fan 11 can supply air to each temperature-controlled space through the multiple air ducts 41. Each air valve 2 is installed at the air outlet end of each air duct 41 to control the air outlet volume of the corresponding temperature-controlled space.

[0043] Those skilled in the art can understand that,Figure 1 、 2 The structure shown in the figure does not constitute a limitation on the air-conditioning device. The air-conditioning device may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently.

[0044] In an exemplary embodiment, the controller 3 is configured to receive an adjustment instruction for the air valve and obtain an opening parameter of the air valve carried in the adjustment instruction.

[0045] The adjustment instruction is an instruction for adjusting the air valve opening. In this embodiment, the adjustment can be for a single air valve or multiple air valves. That is, the user can adjust the air valve opening of any temperature-controlled space or multiple temperature-controlled spaces. The adjustment instruction may carry, but is not limited to, at least one of the following parameters: a unique identifier of the air valve being adjusted, an opening parameter, and an adjustment time. The unique identifier of the air valve may be, but is not limited to, at least one of the air valve number, air valve name, and air valve model. The air valve opening parameters may include, but are not limited to, the air valve opening after adjustment, the air valve opening before adjustment, and the air valve opening ratio.

[0046] The air valve opening ratio is the ratio of the effective air flow area when the air valve is adjusted to a specified opening to the total effective air flow area when all air valves are fully open. The effective air flow area refers to the cross-sectional area inside the air valve that actually participates in air flow control. For example, if the air conditioner is equipped with n air valves, and the opening of air valve 1 is adjusted to k1, then the current air valve opening ratio is (k1%*S1) / (k n %*S n ), where S1 represents the cross-sectional area when the air valve 1 is opened to the opening k1, S n represents the sum of the cross-sectional areas of n air valves when they are fully open, k n It represents the sum of the openings of n air valves when they are fully open. For example, in the case of 8 air valves, k n When the opening of multiple air valves is adjusted, the effective gas flow areas corresponding to the multiple air valves are superimposed. For example, if the opening of air valve 1 is adjusted to k1 and the opening of air valve 2 is adjusted to k2, the current air valve opening ratio is (k1%*S1+k2%*S2) / (k n %*S n ), where S2 represents the cross-sectional area when the air valve 2 is opened to the opening degree k2.

[0047] For example, when the controller receives an adjustment instruction for the air valve, it can first parse the adjustment instruction to obtain the opening parameter of the air valve carried by the adjustment instruction, so as to facilitate the subsequent calculation of the global duct static pressure based on the opening parameter of the air valve.

[0048] The controller 3 is further configured to determine the global air duct static pressure based on the opening parameter of the air valve and a preset corresponding relationship between the opening parameter of the air valve and the global air duct static pressure, and determine a target operating power of the indoor fan required to maintain the global air duct static pressure.

[0049] The preset corresponding relationship between the opening parameter of the air valve and the global air duct static pressure is a linear function relationship established in advance for the opening parameter of the air valve and the global air duct static pressure. In an example, the preset corresponding relationship between the opening parameter of the air valve and the global air duct static pressure can be represented as: global air duct static pressure = A*air valve opening ratio + B, where A and B are constants, and the values of A and B can be derived according to the maximum and minimum values of the global air duct static pressure and the maximum and minimum values of the air valve opening ratio. In actual application, the calculated global air duct static pressure can have an up and down fluctuation within an allowable range. The global air duct static pressure refers to the pressure generated by the gas in the entire air duct on the pipe wall after the opening of the air valve is adjusted. The target operating power refers to the operating power consumed by the indoor fan to maintain the current global air duct static pressure.

[0050] For example, the controller can establish a linear function expression between the opening parameter of the air valve and the global air duct static pressure in advance, so that when the controller obtains the opening parameter of the air valve of the air conditioning equipment, it can be substituted into the linear function expression to calculate the current global air duct static pressure of the air conditioning equipment. After obtaining the global air duct static pressure, the controller can further calculate the operating power consumed by the indoor fan to maintain the current global air duct static pressure according to the global air duct static pressure and the corresponding relationship between the global air duct static pressure and the operating power of the fan.

[0051] In some embodiments, when the adjusted air valve is one, the air valve opening ratio corresponding to the air valve can be substituted into the linear function expression between the opening parameter of the air valve and the global air duct static pressure to calculate the global air duct static pressure. When the adjusted air valve is multiple, the air valve opening ratios corresponding to the multiple air valves can be substituted into the linear function expression between the opening parameter of the air valve and the global air duct static pressure to calculate the global air duct static pressure. Further, according to the corresponding relationship between the global air duct static pressure and the operating power of the fan, the operating power consumed by the indoor fan to maintain the global air duct static pressure when multiple air valves are adjusted can be obtained.

[0052] In some embodiments, since the global air duct static pressure and the air valve opening degree ratio are in a linear relationship, the corresponding fan operating power and the air valve opening degree ratio can also be in a linear relationship. Therefore, the corresponding relationship between the air valve opening degree ratio and the fan operating power can be obtained: the current fan operating power = C*air valve opening degree ratio + D, where C and D are constants, and the values of C and D can also be derived according to the fan operating power at the lowest global air duct static pressure and the fan operating power at the highest global air duct static pressure. After obtaining the opening parameter of the air valve, the controller can directly substitute the air valve opening degree ratio into the expression to obtain the operating power consumed by the indoor fan to maintain the current global air duct static pressure. In actual application, the target operating power of the indoor fan can fluctuate up and down within an allowable error range.

[0053] The controller 3 is further configured to monitor the actual operating power of the indoor fan, and in the case that the power difference absolute value between the actual operating power and the target operating power is greater than or equal to a preset power difference threshold, adjust the rotating speed of the indoor fan until the power difference absolute value is less than the preset power difference threshold.

[0054] The actual operating power refers to the current actual operating power of the indoor fan, which can be greater or less than the target operating power. The power difference absolute value refers to the absolute value of the difference between the actual operating power and the target operating power, which is used to quantify the deviation degree of the fan operating power and serves as the basis for subsequent wind speed adjustment. The preset power difference threshold is a threshold set in advance for the power difference absolute value. In this embodiment, the power difference threshold can be fixed, such as 4W (watt), 5W, etc., or unfixed, i.e., the controller can determine a suitable power difference threshold according to the performance of the indoor fan, for example, when the indoor fan has good performance such as a new fan, the power difference threshold can be set smaller to improve the accuracy of wind speed adjustment. When the fan has poor performance such as an old or bearing-worn fan, the power difference threshold can be increased to avoid frequent speed adjustment due to small power fluctuations, reduce mechanical wear and tear, and the power difference threshold can be set according to actual conditions, which is not limited herein.

[0055] For example, the controller can monitor the actual operating power of the indoor fan in real time. After calculating the target operating power consumed by the indoor fan to maintain the current global duct static pressure, the actual operating power and the target operating power can be compared to obtain the power difference absolute value. Further, the power difference absolute value is compared with the preset power difference threshold value. When the power difference absolute value of the actual operating power and the target operating power is greater than or equal to the threshold value, it means that the actual operating power of the fan has deviated significantly from the target operating power, the air flow of each duct is unbalanced, and the air output of the room without air valve adjustment will fluctuate. At this time, the fan speed needs to be adjusted to stabilize the operating power of the fan, so as to stabilize the global duct static pressure and avoid affecting the air output of other rooms. Until the power difference absolute value is less than the preset power difference threshold value, the difference between the actual operating power and the target operating power of the fan is small, the actual duct static pressure has basically approached the global duct static pressure, the air flow of each duct is balanced, and the change of the air valve opening degree will only change the air output of the duct where the air valve is located, without affecting the air output of other ducts. Therefore, the fan speed does not need to be adjusted.

[0056] In some embodiments, the controller can detect the actual operating power of the indoor fan and the corresponding power difference absolute value again after a preset time length to determine whether the fan speed adjustment in the current round has effect. If the power difference absolute value detected again is still greater than or equal to the preset power difference threshold value, the fan speed adjustment is continued. Otherwise, if the power difference absolute value detected again is less than the preset power difference threshold value, the fan speed adjustment can be stopped. Therefore, in this embodiment, the fan speed adjustment of the indoor fan can be one time or multiple times.

[0057] In the air conditioning device provided in this embodiment, upon receiving an adjustment command for a damper, the controller obtains the damper opening parameter and, based on the correspondence between the damper opening parameter and the duct static pressure, determines the global duct static pressure, thereby deriving the target operating power required by the indoor fan to maintain the global duct static pressure. Subsequently, by comparing the absolute value of the power difference between the target operating power and the actual operating power of the indoor fan, the controller adjusts the fan speed if the absolute value of the power difference is greater than or equal to a power difference threshold, until the absolute value of the power difference is less than a preset power difference threshold, at which point the duct static pressure has substantially approached the global duct static pressure. In this manner, after the opening of any damper is changed, the rapid adaptive adjustment of the fan power can consistently maintain the stability of the duct static pressure. When the global duct static pressure is stable, the gas flow rate within each duct is determined solely by the damper opening corresponding to that duct. Therefore, changes in the opening of any damper only change the airflow rate of the duct in which it is located and do not affect the airflow rates of other ducts. It effectively reduces the interference caused by the user adjusting the air valve opening of any temperature-controlled space on the air volume of other temperature-controlled spaces where the air valve is not adjusted, thereby improving the flexibility of air-conditioning equipment adjustment and user experience.

[0058] In an exemplary embodiment, when executing the step of determining the target operating power required for the indoor fan to maintain the global duct static pressure, the controller 3 is further configured to:

[0059] Obtain the correspondence between the preset global duct static pressure and the fan operating power, the set air volume of the indoor fan, and the fan energy conversion efficiency;

[0060] Based on the correspondence between the global duct static pressure and the fan operating power, the set air volume and the fan energy conversion efficiency, the target operating power required for the indoor fan to maintain the global duct static pressure is determined.

[0061] The relationship between the preset global duct static pressure and fan operating power is a pre-established linear function relationship for these two factors. It is understood that as the global duct static pressure increases, the indoor fan must overcome greater resistance to propel airflow, consuming more power to maintain the same air volume. Therefore, in one example, the relationship between the preset global duct static pressure and fan operating power can be expressed as: Fan operating power = (set air volume × global duct static pressure) / Fan energy conversion efficiency. The set air volume is the theoretical air volume that the indoor fan is expected to deliver, and the fan energy conversion efficiency refers to the efficiency with which the indoor fan converts electrical energy into mechanical energy. In actual use, if the fan remains unchanged, the fan energy conversion efficiency can be a constant value.

[0062] For example, the controller can previously establish a linear function expression between the global air duct static pressure and the fan operating power. When the controller calculates the global air duct static pressure, the controller can further obtain the preset theoretical air volume required to be delivered by the indoor fan and the energy conversion efficiency of the indoor fan, and input these parameters into the linear function expression to calculate the operating power required by the indoor fan to maintain the current global air duct static pressure.

[0063] In this embodiment, the target operating power required by the indoor fan to maintain the current global air duct static pressure is calculated according to the preset corresponding relationship between the global air duct static pressure and the fan operating power, so that the accuracy of the target operating power is ensured, and a foundation is laid for subsequent accurate adjustment of the fan speed.

[0064] In an example embodiment, the controller 3 is further configured to, when performing the step of adjusting the speed of the indoor fan:

[0065] compare the power difference absolute value with the preset plurality of power difference levels to determine a target power difference level to which the power difference absolute value belongs;

[0066] determine a target wind speed adjustment amplitude matched with the power difference absolute value based on a preset corresponding relationship between the power difference level and the wind speed adjustment amplitude;

[0067] adjust the speed of the indoor fan according to the target wind speed adjustment amplitude.

[0068] The preset plurality of power difference levels refer to intervals divided in advance according to the power difference absolute value. For example, the first level is greater than or equal to 100, the second level is [80, 99], the third level is [60, 79], the fourth level is [40, 59], the fifth level is [20, 39], the sixth level is [10, 19], and the seventh level is [5, 9]. The unit is watt. Of course, in actual applications, different power difference levels can be divided according to actual conditions, and the present embodiment does not limit this. The target power difference level refers to a specific level to which the current power difference absolute value of the indoor fan belongs, which can be any one of the plurality of power difference levels.

[0069] Different power difference gears can have different wind speed adjustment amplitudes, and the wind speed adjustment amplitude refers to the amplitude or step length of each adjustment of the fan speed, and is in units of rpm (revolutions per minute). It can be understood that for the gear corresponding to a larger power difference absolute value, a larger wind speed adjustment amplitude can be set to quickly correct the deviation. For the gear corresponding to a smaller power difference absolute value, a smaller wind speed adjustment amplitude can be set to gradually approach the target operating power and improve the adjustment accuracy. For example, the wind speed adjustment amplitude corresponding to the first gear is 64, the wind speed adjustment amplitude corresponding to the second gear is 48, the wind speed adjustment amplitude corresponding to the third gear is 32, the wind speed adjustment amplitude corresponding to the fourth gear is 16, the wind speed adjustment amplitude corresponding to the fifth gear is 8, the wind speed adjustment amplitude corresponding to the sixth gear is 4, and the wind speed adjustment amplitude corresponding to the seventh gear is 1. It should be noted that the wind speed adjustment amplitude corresponding to each gear can be fixed or adaptively adjusted according to the performance of the indoor fan, and the specific determination can be made according to the actual situation. The target wind speed adjustment amplitude is the wind speed adjustment amplitude matched with the target power difference gear.

[0070] For example, after calculating the current power difference absolute value of the indoor fan, the controller compares the power difference absolute value with the plurality of preset power difference gears to determine the target power difference gear to which the power difference absolute value belongs. Further, according to the corresponding relationship between the preset power difference gears and the wind speed adjustment amplitudes, the target wind speed adjustment amplitude matched with the target power difference gear is determined. Thus, the controller can adjust the wind speed of the indoor fan according to the target wind speed adjustment amplitude.

[0071] In this embodiment, the target wind speed adjustment amplitude matched with the current power difference absolute value of the indoor fan is obtained through the matching of the power difference gears and the wind speed adjustment amplitudes, so that the speed of the indoor fan is adjusted according to the amplitude, which can ensure the accuracy of the fan speed adjustment, and further ensure that the operating power of the fan and the static pressure of the air duct quickly reach stability.

[0072] In one exemplary embodiment, the controller 3 is further configured to:

[0073] Again acquire the actual operating power of the fan;

[0074] In the case where the power difference absolute value between the again acquired actual operating power and the target operating power is greater than or equal to the preset power difference threshold, the speed of the indoor fan is again adjusted until the power difference absolute value is less than the preset power difference threshold.

[0075] For example, after the first adjustment of the indoor fan speed, the controller can again acquire the actual operating power of the indoor fan. It can be understood that the actual operating power here is the actual operating power after the first adjustment of the indoor fan speed. After the actual operating power of the indoor fan is acquired again, it also needs to be compared with the target operating power again. If the obtained power difference absolute value is still greater than or equal to the preset power difference threshold, it indicates that the first speed adjustment does not have the corresponding effect, and the speed adjustment needs to be continued until the power difference absolute value is less than the preset power difference threshold. On the contrary, if the obtained power difference absolute value is less than the preset power difference threshold, it indicates that the current fan power has stabilized, and the air duct static pressure has also basically tended to the global air duct static pressure, at which time the speed adjustment can be stopped.

[0076] In some embodiments, when the indoor fan needs to continue to be adjusted in speed, the step of comparing the power difference levels can be added, that is, whether the power difference levels before and after are consistent is compared to determine the interval length of the next speed adjustment.

[0077] In this embodiment, by continuously acquiring the actual operating power of the indoor fan and continuing to adjust the speed when the power difference absolute value is still greater than or equal to the preset power difference threshold, the actual operating power of the indoor fan tends to the target operating power, and the actual air duct static pressure tends to the global air duct static pressure, thereby maintaining the stability of the air volume in the air duct. The flexibility of the air conditioning equipment adjustment is improved, and the user experience is improved.

[0078] In an exemplary embodiment, the controller 3, when performing the step of adjusting the speed of the indoor fan again, is further configured to:

[0079] determine whether the power difference level to which the power difference absolute value between the current actual operating power and the target operating power belongs is consistent with the last determined power difference level;

[0080] if consistent, after waiting for a first preset time length, the power difference absolute value of the indoor fan is detected again;

[0081] if inconsistent, after waiting for a second preset time length, the power difference absolute value of the indoor fan is detected again;

[0082] wherein the first preset time length and the second preset time length are the time lengths required for the indoor fan to reach a stable state, and the second preset time length is greater than the first preset time length.

[0083] The last determined power difference gear refers to the power difference gear determined during the last wind speed adjustment. The gear consistency judgment is to compare whether the current detected power difference gear is the same as the power difference gear during the last wind speed adjustment. The gears are consistent twice, which means that the power difference does not change significantly, and the same gear is continuously maintained. It can be considered that the indoor fan is tending to be stable at this time, and the absolute value of the power difference of the indoor fan can be detected again after waiting for a first preset time length. When the gears are inconsistent twice, such as jumping from the third gear to the first gear, it can be understood that whether it is from a high gear to a low gear or from a low gear to a high gear, it means that the power deviation is suddenly changed. At this time, the absolute value of the power difference of the indoor fan can be detected again after waiting for a second preset time length.

[0084] It can be understood that it takes a certain time for the indoor fan to stabilize from the adjustment of the rotating speed to the power and the static pressure of the air duct. If the fan operating power is detected immediately after the fan rotating speed is adjusted, the fan has not stabilized at this time, and there will be a certain error in the detected fan operating power, thereby affecting the accuracy of the wind speed adjustment. Therefore, a preset time length is set in the embodiment, and the controller will wait for a preset time length after each wind speed adjustment is completed before detecting the fan operating power again. Further, considering the cross-amplitude rotating speed adjustment, the pressure in the air duct will oscillate, and compared with the same-amplitude rotating speed adjustment, the fan needs more time to stabilize. Therefore, in the embodiment, different preset time lengths are further set for the same power difference gear and the cross-power difference gear, that is, when the power difference gears are consistent before and after, the controller will detect the absolute value of the power difference of the indoor fan again after waiting for a first preset time length, and when the power difference gears are inconsistent before and after, the controller will detect the absolute value of the power difference of the indoor fan again after waiting for a second preset time length. The second preset time length is greater than the first preset time length, for example, the second preset time length is 60 seconds, and the first preset time length is 30 seconds. Of course, the specific values of the first preset time length and the second preset time length can be determined according to actual conditions, and the embodiment does not limit them. In this way, the accuracy of each fan operating power detection can be ensured, thereby ensuring the accuracy of the wind speed adjustment.

[0085] In some embodiments, for the case of the first wind speed adjustment of the indoor fan, since there is no last determined power difference gear, the waiting time length of the controller can be independently set. The controller can acquire the actual operating power of the indoor fan again and detect the corresponding power difference absolute value after waiting for the time length. In an example, the middle value of the first preset time length and the second preset time length can be selected as the waiting time length after the first wind speed adjustment. Of course, other values can also be selected according to actual conditions, as long as they can ensure that the indoor fan reaches a stable state.

[0086] Exemplarily, in a case that the absolute value of the power difference between the actual operating power and the target operating power is greater than or equal to the preset power difference threshold, the controller can perform speed adjustment on the indoor fan. Meanwhile, it is determined whether the power difference absolute value of the current actual operating power and the target operating power belongs to the same power difference range as the last determined power difference range. If yes, after waiting for a first preset time length, the actual operating power of the indoor fan is detected again, compared with the target operating power, and the corresponding power difference absolute value is obtained. Then, the step of comparing the power difference absolute value with the preset multiple power difference ranges and determining the target power difference range to which the power difference absolute value belongs is returned. If no, after waiting for a second preset time length, the actual operating power of the indoor fan is detected again, compared with the target operating power, and the corresponding power difference absolute value is obtained. Then, the step of comparing the power difference absolute value with the preset multiple power difference ranges and determining the target power difference range to which the power difference absolute value belongs is returned, until the power difference absolute value is less than the preset power difference threshold.

[0087] In the embodiment, by setting the controller to wait for a preset time length before performing the next round of fan operating power detection, sufficient state stabilization time can be reserved for the indoor fan. Further, different preset time lengths are set for the two cases of indoor fan speed adjustment under the same power difference range and indoor fan speed adjustment across power difference ranges, to ensure the accuracy of fan operating power detection under different conditions, thereby ensuring the accuracy of indoor fan speed adjustment.

[0088] In an exemplary embodiment, when determining the correspondence between the power difference range and the speed adjustment range, the controller 3 is further configured to:

[0089] obtain the basic speed adjustment range corresponding to each of the preset multiple power difference ranges and the performance parameter of the indoor fan;

[0090] correct each basic speed adjustment range based on the performance parameter to obtain a corrected speed adjustment range;

[0091] integrate the power difference range and the corrected speed adjustment range to obtain the correspondence between the power difference range and the speed adjustment range.

[0092] The basic speed regulation amplitude refers to the basic regulation amplitude corresponding to each power difference gear position when the wind speed is regulated. The basic regulation amplitude can be a fixed adjustment amount. The performance parameters of the indoor fan are related parameters for characterizing the performance of the indoor fan, and can include but are not limited to at least one of the energy conversion efficiency, response time, running time, bearing wear degree, etc. of the indoor fan. These performance parameters can be used as the basis for scoring the performance of the indoor fan, that is, the performance of the indoor fan can be scored according to these performance parameters. When the basic speed regulation amplitude is corrected, the correction coefficient corresponding to different scores is different. The correction coefficient can be positive or negative. For example, when the performance score is high, it means that the energy conversion efficiency of the indoor fan is high and it can respond quickly. At this time, a higher correction coefficient can be set to improve the efficiency of wind speed regulation. When the performance score is low, it means that the energy conversion efficiency of the indoor fan is low, the response is slow, and it is easy to be damaged. At this time, a lower correction coefficient can be set to prevent the fan from running overload.

[0093] Taking the first gear and the second gear as examples, the basic speed regulation amplitude of the first gear is 60, and the basic speed regulation amplitude of the second gear is 44. When the performance score of the indoor fan is high, the corresponding correction coefficient is assumed to be 4, that is, the basic speed regulation amplitude can be increased by 4. The final wind speed regulation amplitude of the first gear after correction is 64, and the final wind speed regulation amplitude of the second gear after correction is 48. If the performance score of the indoor fan is low, the corresponding correction coefficient is assumed to be -4, that is, the basic speed regulation amplitude is reduced by 4. The final wind speed regulation amplitude of the first gear after correction is 56, and the final wind speed regulation amplitude of the second gear after correction is 40.

[0094] In some embodiments, in addition to the case where the above-mentioned correction coefficients are the same, the correction coefficients corresponding to each basic speed regulation amplitude can also be different. For example, based on the performance parameters of the indoor fan, the value range of the correction coefficient can be determined. For larger basic speed regulation amplitudes, a smaller value in the value range can be selected as the correction coefficient to correct the basic speed regulation amplitude to a smaller extent to avoid fan overload. For smaller basic speed regulation amplitudes, a larger value in the value range can be selected as the correction coefficient to correct the basic speed regulation amplitude to a larger extent to quickly stabilize the fan state.

[0095] For example, for each preset power difference gear, the controller can preset a fixed basic rotation speed adjustment range. When the correspondence between the power difference gear and the wind speed adjustment range needs to be determined, the controller can obtain the current performance parameter of the indoor fan, and score the performance of the indoor fan based on the performance parameter. According to the performance score, a corresponding wind speed adjustment range correction coefficient is matched, so that each basic rotation speed adjustment range is corrected according to the correction coefficient to obtain a corrected wind speed adjustment range. Finally, the power difference gear and the corrected wind speed adjustment range are integrated to obtain the correspondence between the power difference gear and the wind speed adjustment range.

[0096] In some embodiments, the controller can update the correspondence between the power difference gear and the wind speed adjustment range periodically, so that the correspondence can fit the actual performance of the indoor fan.

[0097] In this embodiment, the basic rotation speed adjustment range corresponding to the preset plurality of power difference gears is corrected based on the performance parameter of the indoor fan, and the power difference gear and the corrected wind speed adjustment range are integrated to obtain the correspondence between the power difference gear and the wind speed adjustment range. In this way, the final wind speed adjustment range is ensured to match the actual performance of the indoor fan, thereby improving the accuracy and reliability of the correspondence between the power difference gear and the wind speed adjustment range, and further improving the accuracy of the wind speed adjustment.

[0098] In an exemplary embodiment, as shown in Figure 3 The air conditioning device further includes a wire controller 5 and a zone controller 6, the wire controller 5 is in communication connection with the zone controller 6, and the zone controller 6 is in communication connection with the controller 3.

[0099] Continuing to refer to Figure 4 , the wire controller 5 is used to receive the control instruction input by the user for the air valve and send the control instruction to the zone controller 6. That is, the user can input the control instruction for one or more air valves on the wire controller 5 according to the actual demand, and the control instruction refers to the instruction for controlling the opening degree of the air valve, which can include but is not limited to at least one of the set opening degree value of the air valve, the unique identifier of the air valve, and the room type corresponding to the air valve. After receiving the control instruction input by the user, the wire controller 5 can send the control instruction to the zone controller 6, so that the zone controller 6 adjusts the air valve to the set opening degree value based on the control instruction.

[0100] In some embodiments, Figure 5The air valve control interface of the wired controller 5 is shown, which includes: the air valve name, the air valve switch for controlling the opening / closing of the air valve, and the air valve opening adjustment key for controlling the set air valve opening. In this embodiment, the air valve control interface can be configured according to the number of air valves, that is, each air valve can correspond to a corresponding air valve control interface. Of course, it is also possible to control all air valves through a single air valve control interface. In this case, the "air valve name" can be a multiple-select component. The user can click "air valve name" to select the air valve to be adjusted from the air valve names displayed on the interface.

[0101] In some embodiments, Figure 6 The diagram shows the interaction between the wire controller 5, the partition controller 6, and the controller 3. The wire controller 5 sends an air valve control instruction to the partition controller 6. After receiving the control instruction, the partition controller 6 can execute the control instruction, that is, adjust the air valve indicated by the control instruction to the set opening, so that each air valve performs an opening / closing action under the control of the partition controller 6 and opens to the set opening in the open state. Furthermore, the partition controller 6 will determine the opening parameters of the air valve, such as the air valve opening ratio, and send the opening parameters of the air valve to the controller in the form of an adjustment instruction. The controller 3 can determine the global duct static pressure of the indoor fan and the operating power required by the indoor fan to maintain the global duct static pressure based on the received opening parameters, and then match the corresponding wind speed adjustment range according to the difference between the operating power and the actual operating power of the indoor fan, and adjust the fan speed according to the wind speed adjustment range.

[0102] In some embodiments, to ensure accurate control of the air valve opening, the zone controller 6 also resets all air valves when the air conditioner is first powered on, so that all air valves are in the closed state. After the reset is completed, the air valve opening can be adjusted according to the control instructions sent by the wired controller 5.

[0103] In some embodiments, the partition controller 6 may reset the air valves in sequence according to the air valve numbers, or may reset the air valves simultaneously, which may be determined according to actual conditions.

[0104] In this embodiment, through the coordinated operation of the wired controller and the partition controller, the user can adjust the opening of each air valve according to actual needs, thereby adjusting the air volume of the corresponding room, thereby improving the user experience.

[0105] In an exemplary embodiment, when the partition controller performs the step of controlling the opening of the air valve according to the control instruction, it is further configured to:

[0106] Obtain the air valve opening and closing information contained in the control instruction;

[0107] When the opening and closing information of the air valves indicates that all the air valves are in a closed state, at least one target air valve is opened.

[0108] The opening and closing information of the air valves can be used to indicate the opening and closing states of the air valves. The target air valve is a default open air valve, and the target air valve is opened when all the air valves are in a closed state. It can be understood that when all the air valves are closed, a closed space is formed in the air duct, so that the indoor fan continues to run but has no place to release pressure, and thus the pressure in the air duct rises sharply, which eventually leads to overloading or even damage of the fan. Based on this, the target air valve is introduced in the embodiment to ensure that there is a certain ventilation in the air duct. In actual application, the target air valve can be one or multiple.

[0109] For example, after receiving the control instruction sent by the line controller, the partition controller can extract the opening and closing state information of each air valve from the control instruction. When the partition controller detects that all the air valves are in a closed state, the target air valve is forcibly opened, which can be pre-set by the user or determined by the partition controller according to the temperature control priority of each temperature control space.

[0110] In some embodiments, the target air valve can be fully opened or opened to a target opening degree specified by the user, such as 50%, which can be determined according to actual conditions.

[0111] In the embodiment, when all the air valves are in a closed state, the target air valve is opened to ensure that there is a certain ventilation in the air duct, thereby avoiding the situation that the fan is damaged due to the closed air duct.

[0112] In an exemplary embodiment, the partition controller is further configured to:

[0113] obtain the type of the temperature control space corresponding to each air valve;

[0114] determine the temperature control priority of each temperature control space based on the type of the temperature control space corresponding to each air valve;

[0115] select the target air valve from the multiple air valves based on the temperature control priority of each temperature control space.

[0116] The temperature control space refers to an indoor space that can be controlled in temperature, and one air valve can correspond to one temperature control space. The type of temperature control space refers to the category of each temperature control space, such as a living room, a master bedroom, a study, etc. Different types of temperature control spaces can have different temperature control priorities, which are the priorities of temperature control adjustment based on the attributes of different temperature control spaces. For example, the living room can have a higher temperature control priority because it has the attribute of a larger space, so the living room can be selected as the target air valve first, that is, when all air valves are closed, the air valve of the living room is opened by default. The master bedroom and the study, which are smaller spaces and are more likely to be adjusted by the user, can be configured with a lower temperature control priority, so the master bedroom and the study are usually not selected as the target air valve. Of course, if the user selects the target air valve, the user's will is given priority, and the type of temperature control space can be ignored.

[0117] For example, when determining the target air valve, the partition controller can first query whether the user has selected the target air valve, and if so, the air valve selected by the user is given priority. If the user has not selected the target air valve, the partition controller can further query whether the user has selected the target air valve in the historical period, such as in the past day or week. If the user has selected the target air valve in the historical period, the historical target air valve is given priority as the current target air valve. If the user has not selected the target air valve in the historical period, the partition controller can obtain the type of the temperature control space corresponding to each air valve, and determine the temperature control priority of each temperature control space based on the type of the temperature control space. Finally, the target air valve is selected according to the temperature control priority of each temperature control space. In this embodiment, the selection condition of the target air valve can also be set in advance, for example, the air valve of the temperature control space with the highest temperature control priority can be determined as the target air valve, or the air valve of the temperature control space with the top n temperature control priorities can be determined as the target air valve. The specific selection condition can be set according to the actual situation, and this embodiment does not limit the selection condition.

[0118] In this embodiment, the target air valve to be opened by default is determined according to the temperature control priority corresponding to different room types, which further improves the intelligence and flexibility of air valve adjustment, thereby improving the user experience.

[0119] In one example embodiment, referring to Figure 7 The flowchart of the control method of the air conditioning equipment performed by the controller provided in the embodiments of the present application specifically includes steps 702 to 710, wherein:

[0120] In step S702, the adjustment instruction for the air valve is received, and the opening parameter of the air valve carried by the adjustment instruction is obtained.

[0121] Step S704, determining the global air duct static pressure based on the opening parameter of the air valve and the preset corresponding relationship between the opening parameter of the air valve and the global air duct static pressure;

[0122] Step S706, determining the target running power of the indoor fan required to maintain the global air duct static pressure;

[0123] Step S708, monitoring the actual running power of the indoor fan;

[0124] Step S710, in the case that the power difference absolute value between the actual running power and the target running power is greater than or equal to the preset power difference threshold, adjusting the rotating speed of the indoor fan until the power difference absolute value is less than the preset power difference threshold.

[0125] The control method of the air conditioning equipment provided by the embodiment can acquire the opening parameter of the air valve when receiving the adjustment instruction for the air valve, determine the global air duct static pressure based on the corresponding relationship between the opening parameter of the air valve and the air duct static pressure, and further deduce the target running power of the indoor fan required to maintain the global air duct static pressure. Subsequently, by comparing the power difference absolute value between the target running power and the actual running power of the indoor fan, the rotating speed of the fan is adjusted in the case that the power difference absolute value is greater than or equal to the power difference threshold until the power difference absolute value is less than the preset power difference threshold, at which time the air duct static pressure has basically approached the global air duct static pressure. In this way, after the opening of any air valve is changed, the stability of the air duct static pressure can be maintained by the rapid self-adaptive adjustment of the fan power. In the stable state of the global air duct static pressure, the gas flow in each air duct is determined by the opening of the air valve corresponding to the air duct, so that the change of the opening of any air valve will only change the air volume of the air duct where the air valve is located, without affecting the air volume of other air ducts. The disturbance of the air volume of other temperature control spaces caused by the user adjusting the opening of the air valve of any temperature control space is effectively reduced, and the flexibility of the air conditioning equipment adjustment and the user experience are improved.

[0126] In an exemplary embodiment, determining the target running power of the indoor fan required to maintain the global air duct static pressure further comprises:

[0127] acquiring the preset corresponding relationship between the global air duct static pressure and the fan running power, the set air volume of the indoor fan, and the energy conversion efficiency of the fan;

[0128] determining the target running power of the indoor fan required to maintain the global air duct static pressure based on the corresponding relationship between the global air duct static pressure and the fan running power, the set air volume, and the energy conversion efficiency of the fan.

[0129] In an exemplary embodiment, adjusting the rotating speed of the indoor fan further comprises:

[0130] The absolute value of the power difference is compared with a plurality of preset power difference levels to determine a target power difference level to which the absolute value of the power difference belongs;

[0131] Based on a preset corresponding relationship between the power difference levels and the wind speed adjustment amplitudes, a target wind speed adjustment amplitude matched with the target power difference level is determined;

[0132] The speed of the indoor fan is adjusted according to the target wind speed adjustment amplitude.

[0133] In an exemplary embodiment, after the speed of the indoor fan is first adjusted, further comprising:

[0134] The actual operating power of the indoor fan is acquired again;

[0135] In a case where the absolute value of the power difference between the actual operating power acquired again and the target operating power is greater than or equal to a preset power difference threshold, the speed of the indoor fan is adjusted again until the absolute value of the power difference is less than the preset power difference threshold.

[0136] In an exemplary embodiment, as shown in Figure 8 the speed of the indoor fan is adjusted again, further comprising:

[0137] It is determined whether the power difference level to which the absolute value of the power difference between the current actual operating power and the target operating power belongs is consistent with the power difference level determined last time;

[0138] If consistent, the absolute value of the power difference of the indoor fan is detected again after waiting for a first preset time length;

[0139] If inconsistent, the absolute value of the power difference of the indoor fan is detected again after waiting for a second preset time length;

[0140] The first preset time length and the second preset time length are time lengths required for the indoor fan to reach a stable state, and the second preset time length is greater than the first preset time length.

[0141] In an exemplary embodiment, the determination process of the corresponding relationship between the power difference levels and the wind speed adjustment amplitudes further comprises:

[0142] A plurality of preset power difference levels each correspond to a basic speed adjustment amplitude, and a performance parameter of the indoor fan is acquired;

[0143] Based on the performance parameter, the basic speed adjustment amplitudes are corrected to obtain corrected wind speed adjustment amplitudes;

[0144] The power difference levels and the corrected wind speed adjustment amplitudes are integrated to obtain the corresponding relationship between the power difference levels and the wind speed adjustment amplitudes.

[0145] In an exemplary embodiment, the air conditioning device further includes a wired controller and a partition controller;

[0146] The wired controller is used to receive the control instructions input by the user for the air valve and send the control instructions to the zone controller;

[0147] The partition controller is used to control the opening of the air valve according to the control instruction, determine the opening parameters of the air valve, and send the opening parameters of the air valve to the controller.

[0148] In some embodiments, as Figure 9 As shown in the figure, after the air conditioner is initially powered on, the wired controller automatically connects to the zone controller, enabling communication between the two. Users can enter control commands for the air valves on the wired controller based on their needs. These commands can include the number of air valves set on the air valve control interface, the target air valve to be opened by default, and the opening of the air valve to be adjusted. The wired controller then forwards these control commands to the zone controller, which executes them, and the air conditioner begins operation.

[0149] In an exemplary embodiment, controlling the opening of the air valve according to a control instruction includes:

[0150] Obtain the air valve opening and closing information contained in the control instruction;

[0151] When the air valve opening and closing information indicates that all air valves are in a closed state, at least one target air valve is opened.

[0152] like Figure 10 As shown, when the air conditioning equipment is first powered on, the partition controller will reset all air valves in sequence or simultaneously to make all air valves in the closed state. If the reset is not completed, the reset action is repeated until the reset is completed. After the reset is completed, if the air conditioning equipment is turned on, the partition controller can start to receive the air valve control instructions sent by the wire controller. If the air conditioning equipment has not been turned on, it ensures that all air valves are closed and continuously monitors the power-on status of the air conditioning equipment. After receiving the air valve control instructions sent by the wire controller, the partition controller can further detect whether all air valves are set to fully closed. If so, the target air valve is forced to open. If not, the air valve control instructions are executed.

[0153] In an exemplary embodiment, the process of determining the target damper includes:

[0154] Get the type of temperature-controlled space corresponding to each air valve;

[0155] Determine the temperature control priority of each temperature-controlled space based on the type of temperature-controlled space corresponding to each air valve;

[0156] The target air valve is selected from the plurality of air valves based on a temperature control priority of each temperature control space.

[0157] The specific process involved in the controller when performing the steps in each embodiment can be referred to the description in the embodiment of the air conditioning equipment, which will not be repeated here.

[0158] In one specific embodiment, referring to Figure 1 and Figure 2 , an air conditioning equipment is provided, specifically comprising: an indoor unit 1, at least one air valve 2, and at least one controller 3. The indoor unit 1 is provided with an indoor fan 11, and the air valve 2 is installed on the air outlet pipeline 4 of the indoor unit 1. The air outlet pipeline 4 is composed of a plurality of air ducts 41, each air duct 41 is connected to each room, and the indoor fan 11 can supply air to each room through the plurality of air ducts 41. Each air valve 2 is installed on the air outlet end of each air duct 41 to control the air outlet volume of the corresponding room. The controller 3 is in communication connection with the indoor unit 1, and can send / receive signals to each other, thereby realizing information acquisition and control instruction issuing of each controllable component in the indoor unit 1.

[0159] In this embodiment, the controller 3 receives the adjustment instruction for the air valve 2, and obtains the air valve opening ratio carried by the adjustment instruction. Based on the air valve opening ratio and the preset corresponding relationship between the air valve opening ratio and the global air duct static pressure, the global air duct static pressure is determined. Further, the target running power of the indoor fan 11 required to maintain the global air duct static pressure is determined. The actual running power of the indoor fan 11 is monitored, and in the case that the power difference absolute value between the actual running power and the target running power is greater than or equal to the preset power difference threshold, the speed of the indoor fan 11 is adjusted until the power difference absolute value is less than the preset power difference threshold.

[0160] In another specific embodiment, referring to Figure 11 , a control method of an air conditioning equipment is provided, specifically comprising the following steps:

[0161] S1: receiving an adjustment instruction for an air valve.

[0162] S2: obtaining an air valve opening ratio carried by the adjustment instruction.

[0163] S3: based on the air valve opening ratio and a preset corresponding relationship between the air valve opening ratio and the global air duct static pressure, determining the current global air duct static pressure of the indoor fan.

[0164] S4: obtaining a preset corresponding relationship between the global air duct static pressure and the fan running power, a set air outlet volume of the indoor fan, and a fan energy conversion efficiency.

[0165] S5: determining the target operating power consumed by the indoor fan to maintain the current global air duct static pressure based on the correspondence between the global air duct static pressure and the fan operating power, the set air volume, and the fan energy conversion efficiency.

[0166] S6: monitoring the actual operating power of the indoor fan and calculating the power difference absolute value between the actual operating power and the target operating power.

[0167] S7: determining whether the power difference absolute value is greater than or equal to a preset power difference threshold, which can be set to 5W; if not, no air speed adjustment is needed, and the process can be ended.

[0168] S8: if yes, comparing the power difference absolute value with a plurality of preset power difference levels to determine the power difference level to which the power difference absolute value belongs.

[0169] S9: determining the target air speed adjustment amplitude matched with the current power difference level based on the correspondence between the preset power difference levels and the air speed adjustment amplitudes.

[0170] S10: adjusting the speed of the indoor fan according to the target air speed adjustment amplitude.

[0171] S11: determining whether the power difference level to which the current power difference absolute value belongs is consistent with the power difference level determined when the speed was adjusted last time.

[0172] S12: if consistent, returning to step S6 after waiting for a first preset time length, and stopping the air speed adjustment when the power difference absolute value is less than the preset power difference threshold. The first preset time length can be 30 seconds.

[0173] S13: if not consistent, returning to step S6 after waiting for a second preset time length, and stopping the air speed adjustment when the power difference absolute value is less than the preset power difference threshold. The second preset time length can be 60 seconds.

[0174] It should be noted that the prerequisite for the power difference level to which the current power difference absolute value belongs is that the indoor fan is not adjusting the air speed for the first time. If the indoor fan is adjusting the air speed for the first time, there is no need to determine the power difference level, but a waiting time length is independently set. The controller can wait for the actual operating power of the indoor fan after the time length, which can be the intermediate value of the first preset time length and the second preset time length, and can be set according to actual conditions.

[0175] By adjusting the fan speed in the above manner, when the power difference between the actual operating power of the fan and the target operating power is less than the preset power difference threshold, the static pressure of the air duct has basically approached the global air duct static pressure. In this way, after the opening of any air valve is changed, the static pressure in the air duct can be maintained stable through the rapid adaptive adjustment of the fan power. In the state of stable global air duct static pressure, the gas flow in each air duct is determined by the opening of the air valve corresponding to the air duct, so that the change of the opening of any air valve only changes the air volume of the air duct where the air valve is located, and does not affect the air volume of other air ducts. The interference of the user on the air volume of other temperature control spaces when adjusting the opening of any air valve is effectively reduced, and the flexibility of the air conditioning equipment adjustment and the user experience are improved.

[0176] Based on the same inventive concept, the embodiment of the present application also provides a control device of an air conditioning equipment for implementing the control method of the air conditioning equipment. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme described in the above method, so the specific limitations in one or more control device embodiments of the air conditioning equipment provided below can refer to the limitations of the control method of the air conditioning equipment in the above, which will not be described here again.

[0177] In one exemplary embodiment, as shown in Figure 12 A control device of an air conditioning equipment is provided, comprising: an opening parameter acquisition module 1202, an air duct static pressure detection module 1204, a fan power detection module 1206, and a fan speed adjustment module 1208. Wherein,

[0178] The opening parameter acquisition module 1202 is configured to receive an adjustment instruction for the air valve, and acquire the opening parameter of the air valve carried by the adjustment instruction;

[0179] The air duct static pressure detection module 1204 is configured to determine the global air duct static pressure based on the opening parameter of the air valve and the preset corresponding relationship between the opening parameter of the air valve and the global air duct static pressure;

[0180] The fan power detection module 1206 is configured to determine the target operating power required by the indoor fan to maintain the global air duct static pressure;

[0181] The fan speed adjustment module 1208 is configured to monitor the actual operating power of the indoor fan, and adjust the rotating speed of the indoor fan until the absolute value of the power difference between the actual operating power and the target operating power is less than the preset power difference threshold, in the case that the absolute value of the power difference is greater than or equal to the preset power difference threshold.

[0182] In one exemplary embodiment, the fan power detection module 1206 is further configured to:

[0183] obtaining a preset corresponding relationship between a global air duct static pressure and a fan operating power, a set air outlet volume of the indoor fan, and a fan energy conversion efficiency;

[0184] determining a target operating power of the indoor fan required for maintaining the global air duct static pressure based on the corresponding relationship between the global air duct static pressure and the fan operating power, the set air outlet volume, and the fan energy conversion efficiency.

[0185] In an exemplary embodiment, the wind speed adjusting module 1208 is further configured to:

[0186] comparing the power difference absolute value with a plurality of preset power difference levels to determine a target power difference level to which the power difference absolute value belongs;

[0187] determining a target wind speed adjusting amplitude matched with the target power difference level based on a preset corresponding relationship between the power difference levels and the wind speed adjusting amplitudes;

[0188] adjusting the rotating speed of the indoor fan according to the target wind speed adjusting amplitude.

[0189] In an exemplary embodiment, the control device of the air conditioning equipment is further configured to:

[0190] obtaining the actual operating power of the indoor fan again;

[0191] in a case where the power difference absolute value between the actual operating power obtained again and the target operating power is greater than or equal to a preset power difference threshold, adjusting the rotating speed of the indoor fan again until the power difference absolute value is less than the preset power difference threshold.

[0192] In an exemplary embodiment, the control device of the air conditioning equipment is further configured to:

[0193] judging whether a power difference level to which a current actual operating power and a target operating power belong is consistent with a last determined power difference level;

[0194] if consistent, detecting the power difference absolute value of the indoor fan again after waiting for a first preset time length;

[0195] if inconsistent, detecting the power difference absolute value of the indoor fan again after waiting for a second preset time length;

[0196] wherein the first preset time length and the second preset time length are time lengths required for the indoor fan to reach a stable state, and the second preset time length is greater than the first preset time length.

[0197] In an exemplary embodiment, the control device of the air conditioning equipment is further configured to:

[0198] obtain a plurality of preset power difference gears each corresponding to a basic speed regulation amplitude, and a performance parameter of the indoor fan;

[0199] correct each basic speed regulation amplitude based on the performance parameter to obtain a corrected wind speed regulation amplitude;

[0200] integrate the power difference gears and the corrected wind speed regulation amplitudes to obtain a corresponding relationship between the power difference gears and the wind speed regulation amplitudes.

[0201] In an exemplary embodiment, the air conditioning device further comprises a wire controller and a zone controller;

[0202] The wire controller is configured to receive a control instruction input by a user for the air valve, and send the control instruction to the zone controller.

[0203] The zone controller is configured to control an opening degree of the air valve according to the control instruction, determine an opening degree parameter of the air valve, and send the opening degree parameter of the air valve to the controller.

[0204] In an exemplary embodiment, the control device of the air conditioning device is further configured to:

[0205] obtain air valve opening and closing information contained in the control instruction;

[0206] When the air valve opening and closing information indicates that each air valve is in a closed state, open at least one target air valve.

[0207] In an exemplary embodiment, the control device of the air conditioning device is further configured to:

[0208] obtain a type of a temperature control space corresponding to each air valve;

[0209] determine a temperature control priority of each temperature control space based on the type of the temperature control space corresponding to each air valve;

[0210] select a target air valve from the plurality of air valves based on the temperature control priority of each temperature control space.

[0211] Each of the above modules of the control device of the air conditioning device can be realized by software, hardware, or a combination thereof, in whole or in part. Each of the above modules can be embedded in or independent of a processor in a computer device in hardware form, or stored in a memory in the computer device in software form, so as to be called and executed by the processor to perform the operations corresponding to each of the above modules.

[0212] In an exemplary embodiment, a computer device is provided, which comprises a processor, a memory, an input / output interface, a communication interface, a display unit, and an input device. A computer program is stored thereon, and the computer program is executed by the processor to implement the above method steps.

[0213] In an exemplary embodiment, a computer readable storage medium is provided, having stored thereon a computer program which, when executed by a processor, implements the method steps described above.

[0214] In an exemplary embodiment, a computer program product is provided, comprising a computer program which, when executed by a processor, implements the method steps described above.

[0215] It should be noted that the user information (including but not limited to user equipment information, user personal information, etc.) and data (including but not limited to data for analysis, stored data, displayed data, etc.) involved in the present application are all information and data authorized by the user or authorized by all parties, and the collection, use and processing of related data need to comply with relevant regulations.

[0216] The technical features of the above embodiments can be combined in any manner. To make the description concise, not all possible combinations of the technical features in the above embodiments are described, but as long as the combinations of the technical features do not exist contradictions, they should be considered as the scope of the present application.

[0217] The above-described embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. An air conditioning apparatus characterized by comprising: The air conditioner comprises: an indoor unit, which is internally provided with an indoor fan; at least one air valve, which is configured to send air to a corresponding temperature-controlled space through at least one air outlet; at least one controller, which is configured to: receive an adjustment instruction for the air valve, and obtain an opening degree parameter of the air valve carried by the adjustment instruction; determine a global air duct static pressure based on the opening degree parameter of the air valve and a preset corresponding relationship between the opening degree parameter of the air valve and the global air duct static pressure; determine a target operating power required by the indoor fan to maintain the global air duct static pressure; monitor an actual operating power of the indoor fan, and adjust a rotating speed of the indoor fan until an absolute value of a power difference between the actual operating power and the target operating power is less than a preset power difference threshold, in a case where the absolute value of the power difference is greater than or equal to the preset power difference threshold.

2. The air conditioning apparatus according to claim 1, wherein When the controller performs the step of determining the target operating power required by the indoor fan to maintain the global air duct static pressure, the controller is further configured to: obtain a preset corresponding relationship between the global air duct static pressure and the fan operating power, a set air outlet volume of the indoor fan, and a fan energy conversion efficiency; determine the target operating power required by the indoor fan to maintain the global air duct static pressure based on the corresponding relationship between the global air duct static pressure and the fan operating power, the set air outlet volume, and the fan energy conversion efficiency.

3. The air conditioning apparatus according to claim 1, wherein When the controller performs the step of adjusting the rotating speed of the indoor fan, the controller is further configured to: compare the absolute value of the power difference with a plurality of preset power difference levels, and determine a target power difference level to which the absolute value of the power difference belongs; determine a target wind speed adjustment amplitude matched with the target power difference level based on a preset corresponding relationship between the power difference level and the wind speed adjustment amplitude; adjust the rotating speed of the indoor fan according to the target wind speed adjustment amplitude.

4. The air conditioning apparatus according to claim 3, wherein After the controller adjusts the rotating speed of the indoor fan for the first time, the controller is further configured to: again obtain the actual operating power of the indoor fan; again adjust the rotating speed of the indoor fan until the absolute value of the power difference between the actual operating power and the target operating power is less than the preset power difference threshold, in a case where the absolute value of the power difference is greater than or equal to the preset power difference threshold.

5. The air conditioning apparatus according to claim 4, wherein When the controller performs the step of again adjusting the rotating speed of the indoor fan, the controller is further configured to: determine whether a power difference level to which the absolute value of the power difference between the current actual operating power and the target operating power belongs is consistent with a last determined power difference level; if consistent, again detect the absolute value of the power difference of the indoor fan after waiting for a first preset time length; if inconsistent, again detect the absolute value of the power difference of the indoor fan after waiting for a second preset time length; wherein the first preset time length and the second preset time length are time lengths required by the indoor fan to reach a stable state, and the second preset time length is greater than the first preset time length.

6. The air conditioning apparatus according to claim 3, wherein When the controller determines the corresponding relationship between the power difference level and the wind speed adjustment amplitude, the controller is further configured to: obtain a plurality of preset power difference gears each corresponding to a basic speed regulation amplitude, and a performance parameter of the indoor fan; correct each of the basic speed regulation amplitudes based on the performance parameter to obtain a corrected wind speed regulation amplitude; integrate the power difference gears and the corrected wind speed regulation amplitudes to obtain a corresponding relationship between the power difference gears and the wind speed regulation amplitudes.

7. The air conditioning apparatus according to claim 1, wherein The air conditioning equipment further comprises a wire controller and a partition controller. The wire controller is configured to receive a control instruction input by a user for the air valve and send the control instruction to the partition controller. The partition controller is configured to control the opening degree of the air valve according to the control instruction, determine an opening degree parameter of the air valve, and send the opening degree parameter of the air valve to the controller.

8. The air conditioning apparatus according to claim 7, wherein When the partition controller performs the step of controlling the opening degree of the air valve according to the control instruction, it is further configured to: obtain air valve opening and closing information contained in the control instruction; when the air valve opening and closing information indicates that each of the air valves is in a closed state, open at least one target air valve.

9. The air conditioning apparatus according to claim 8, wherein When the partition controller determines the target air valve, it is further configured to: obtain the type of the temperature control space corresponding to each of the air valves; determine the temperature control priority of each of the temperature control spaces based on the type of the temperature control space corresponding to each of the air valves; select a target air valve from the plurality of air valves based on the temperature control priority of each of the temperature control spaces.

10. A control method of an air conditioning apparatus, characterized by, The method comprises: receiving an adjustment instruction for an air valve and obtaining an opening degree parameter of the air valve carried by the adjustment instruction; determining a global air duct static pressure based on the opening degree parameter of the air valve and a preset corresponding relationship between the opening degree parameter of the air valve and the global air duct static pressure; determining a target operating power required by the indoor fan to maintain the global air duct static pressure; monitoring the actual operating power of the indoor fan, and adjusting the speed of the indoor fan until the absolute value of the power difference between the actual operating power and the target operating power is less than the preset power difference threshold, if the absolute value of the power difference is greater than or equal to the preset power difference threshold.

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