Refrigerant adjusting method and device of air conditioning system and air conditioning equipment

Abstract

The invention discloses a refrigerant adjusting method and device of an air conditioning system and air conditioning equipment, the air conditioning system comprises at least one indoor unit, and the method comprises the steps that for each indoor unit attribute, the sum of parameter values of the at least one indoor unit on the indoor unit attribute is obtained, and the indoor unit attribute is the attribute influencing the working effect of the air conditioning system; calculating a target ratio between each parameter value sum and a reference parameter value of the corresponding indoor unit attribute; and according to the target ratio corresponding to each indoor unit attribute, the target refrigerant adjusting proportion of the air conditioning system is determined. According to the technical scheme, the target refrigerant adjusting proportion of the air conditioning system can be obtained, so that the refrigerant amount of the system is adjusted according to the proportion, and the system operates in a better state.

Description

Technical Field

[0001] The present application belongs to the technical field of air-conditioning system control, and in particular, relates to a refrigerant regulation method, device and air-conditioning equipment of an air-conditioning system. Background Art

[0002] At present, based on some special needs of users, some air-conditioning outdoor units are configured with non-standard indoor units in the constructed air-conditioning systems. In this case, the unreasonable amount of refrigerant in the air-conditioning outdoor units will cause the air-conditioning system to operate poorly, and in severe cases, system failures may occur. Summary of the invention

[0003] The embodiments of the present application provide a refrigerant regulation method, device and air-conditioning equipment for an air-conditioning system, thereby determining the refrigerant regulation ratio of the air-conditioning system at least to a certain extent to ensure that the air-conditioning system operates in a better state.

[0004] Other features and advantages of the present application will become apparent from the following detailed description, or may be learned in part by the practice of the present application.

[0005] According to a first aspect of an embodiment of the present application, a refrigerant regulation method for an air-conditioning system is provided, the air-conditioning system comprising at least one indoor unit, the method comprising:

[0006] For each indoor unit attribute, obtaining a sum of parameter values ​​of the at least one indoor unit on the indoor unit attribute, wherein the indoor unit attribute is an attribute that affects the working effect of the air-conditioning system;

[0007] Calculating a target ratio between the sum of each of the parameter values ​​and a reference parameter value corresponding to the internal engine property;

[0008] The target refrigerant adjustment ratio of the air-conditioning system is determined according to the target ratios corresponding to the properties of the indoor units.

[0009] In some embodiments of the present application, based on the above solution, the method further includes:

[0010] If the number of indoor units of the air-conditioning system is greater than or equal to two, then for each indoor unit attribute, a sum of parameter values ​​of the at least one indoor unit on the indoor unit attribute is obtained.

[0011] In some embodiments of the present application, based on the above solution, after calculating the target ratio between the sum of each parameter value and the reference parameter value of the corresponding internal machine property, the method further includes:

[0012] If the target ratios corresponding to the properties of the indoor units are all outside the preset ratio range, the target refrigerant adjustment ratio of the air-conditioning system is determined according to the target ratios corresponding to the properties of the indoor units.

[0013] In some embodiments of the present application, based on the above solution, after calculating the target ratio between the sum of each parameter value and the reference parameter value of the corresponding internal machine property, the method further includes:

[0014] If the target ratios corresponding to the properties of the indoor units greater than or equal to a preset number are outside the preset ratio range, the target refrigerant adjustment ratio of the air-conditioning system is determined according to the target ratios corresponding to the properties of the various indoor units.

[0015] In some embodiments of the present application, based on the above solution, after calculating the target ratio between the sum of each parameter value and the reference parameter value of the corresponding internal machine property, the method further includes:

[0016] If the target ratio corresponding to the target indoor unit property is outside the preset ratio range, the target refrigerant adjustment ratio of the air-conditioning system is determined according to the target ratios corresponding to the properties of each indoor unit.

[0017] In some embodiments of the present application, based on the above-mentioned solution, determining the refrigerant adjustment ratio of the air-conditioning system according to the target ratio corresponding to the properties of each indoor unit includes:

[0018] Obtaining a preset mapping relationship table, wherein the preset mapping relationship table records the corresponding relationship between the refrigerant adjustment ratio and the ratio corresponding to each indoor unit attribute;

[0019] The target refrigerant adjustment ratio that matches the target ratio corresponding to the attribute of each indoor unit is searched in the preset mapping relationship table.

[0020] In some embodiments of the present application, based on the above-mentioned solution, determining the refrigerant adjustment ratio of the air-conditioning system according to the target ratio corresponding to the properties of each indoor unit includes:

[0021] Obtaining a pre-built mapping relationship function, where the mapping relationship function is used to characterize the functional relationship between the refrigerant adjustment ratio and the ratios corresponding to the properties of each indoor unit;

[0022] According to the target ratios corresponding to the properties of each indoor unit, the target refrigerant adjustment ratio is calculated through the mapping relationship function.

[0023] In some embodiments of the present application, based on the aforementioned solution, the refrigerant adjustment ratio is positively correlated with the ratios corresponding to the properties of each indoor unit.

[0024] In some embodiments of the present application, based on the above solution, after determining the target refrigerant adjustment ratio of the air-conditioning system, the method further includes:

[0025] According to the target refrigerant adjustment ratio of the air-conditioning system, the refrigerant amount of the outdoor unit of the air-conditioning system is adjusted.

[0026] In some embodiments of the present application, based on the aforementioned solution, the indoor unit properties at least include the indoor unit air volume and / or the indoor unit heat exchanger area.

[0027] In some embodiments of the present application, based on the aforementioned solution, the air-conditioning system includes at least one indoor unit that can be turned on and off at the same time.

[0028] In some embodiments of the present application, based on the aforementioned solution, the parameter values ​​of the same indoor unit attributes of each indoor unit are the same.

[0029] According to a second aspect of an embodiment of the present application, a refrigerant conditioning device for an air-conditioning system is provided, the air-conditioning system comprising at least one indoor unit, the device comprising:

[0030] a parameter acquisition module, configured to acquire, for each indoor unit attribute, a sum of parameter values ​​of the at least one indoor unit on the indoor unit attribute, wherein the indoor unit attribute affects the working effect of the air conditioning system;

[0031] a ratio calculation module, used for calculating a target ratio between the sum of each of the parameter values ​​and a reference parameter value of a corresponding internal engine property;

[0032] The ratio determination module is used to determine the target refrigerant adjustment ratio of the air-conditioning system according to the target ratio corresponding to the properties of each indoor unit.

[0033] According to a third aspect of an embodiment of the present application, an air-conditioning device is provided, comprising one or more processors and one or more memories, wherein at least one program code is stored in the one or more memories, and the at least one program code is loaded and executed by the one or more processors to implement the operations performed by any of the methods described in the first aspect.

[0034] In the present application, for each indoor unit attribute that affects the working effect of the air-conditioning system, the sum of the parameter values ​​of at least one indoor unit on the indoor unit attribute is obtained; then, the target ratio between the sum of each parameter value and the benchmark parameter value of the corresponding indoor unit attribute is calculated, and the target ratio can reflect the difference between the attribute parameter value of the currently configured indoor unit and the attribute parameter value of the standard indoor unit; finally, the target refrigerant adjustment ratio of the air-conditioning system is determined according to the target ratio, so as to adjust the system refrigerant amount according to the ratio, eliminate the influence of the difference in the indoor unit attribute parameter values ​​on the system operating state, and make the system operate in a better state.

[0035] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present application, and together with the specification, are used to explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0037] Figure 1 A schematic diagram of the structure of an air conditioning system in an embodiment of the present application is shown;

[0038] Figure 2 A flow chart showing a refrigerant regulating method of an air-conditioning system in an embodiment of the present application is shown;

[0039] Figure 3 A schematic diagram of the structure of a refrigerant regulating device of an air-conditioning system in an embodiment of the present application is shown;

[0040] Figure 4 A schematic diagram of the structure of an air-conditioning device in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0042] In addition, described feature, structure or characteristic can be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present application. However, those skilled in the art will appreciate that the technical scheme of the present application can be put into practice without one or more of the specific details, or other methods, components, devices, steps, etc. can be adopted. In other cases, known methods, devices, realizations or operations are not shown or described in detail to avoid blurring the various aspects of the application.

[0043] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities may be implemented in software form, or in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0044] The flowcharts shown in the accompanying drawings are only exemplary and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps can be decomposed, and some operations / steps can be combined or partially combined, so the actual execution order may change according to actual conditions.

[0045] It should also be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the objects used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those shown or described.

[0046] The following will be combined Figure 1 and Figure 2 The refrigerant regulating method of the air-conditioning system proposed in the present application is described.

[0047] See also Figure 1 , shows a schematic diagram of the structure of the air-conditioning system in an embodiment of the present application.

[0048] First, if Figure 1 As shown, in the present application, the air-conditioning system includes at least one indoor unit; that is, the air-conditioning system may include one indoor unit, two indoor units, three indoor units, or more than three indoor units.

[0049] Among them, when the air-conditioning outdoor unit is configured with an indoor unit, if the capacity segment of the indoor unit just matches the external force segment of the air-conditioning outdoor unit, and the amount of system refrigerant required by the indoor unit just matches the amount of system refrigerant supplied by the air-conditioning outdoor unit, then the indoor unit configured at this time is defined as the benchmark indoor unit. In the embodiment of the present application, unless otherwise explained, the benchmark indoor units mentioned below are all the benchmark indoor units defined here, and will not be repeated below.

[0050] The capacity segment in the embodiment of the present application refers to the rated parameters indicated on the nameplates of the indoor and outdoor units of the air conditioner, and the rated parameters may be the cooling capacity. For example, if the cooling capacity indicated on the nameplate of the outdoor unit is 50 kilowatts, and the cooling capacity indicated on the nameplate of the indoor unit is also 50 kilowatts, it means that the capacity segments of the indoor and outdoor units match.

[0051] It is understandable that when an air-conditioning outdoor unit is equipped with an indoor unit, the capacity range and refrigerant demand of this indoor unit may not completely match those of the outdoor unit. The system refrigerant quantity can be adjusted subsequently by the refrigerant adjustment method below, which is not limited here.

[0052] Among them, when the air-conditioning outdoor unit is equipped with two indoor units, if the two indoor units are the same, the capacity segment of each indoor unit is about 1 / 2 of the outdoor unit, each indoor unit is divided into master and slave, and each indoor unit is turned on and off at the same time, and this indoor unit combination form is called TWINS combination; similarly, when the air-conditioning outdoor unit is equipped with three indoor units, if the three indoor units are the same, the capacity segment of each indoor unit is about 1 / 3 of the outdoor unit, each indoor unit is divided into master and slave, and each indoor unit is turned on and off at the same time, and this indoor unit combination form is called TRIPLES combination; by analogy, when the air-conditioning outdoor unit is equipped with N (N>3) indoor units, if the N indoor units are the same, the capacity segment of each indoor unit is about 1 / N of the outdoor unit, each indoor unit is divided into master and slave, and each indoor unit is turned on and off at the same time, this indoor unit combination form can also be defined separately, which will not be repeated here.

[0053] The sameness of the indoor units means that the parameter values ​​of the indoor units for the same indoor unit attribute are the same. The indoor unit attributes and the parameter values ​​of the indoor unit attributes will be described below and will not be repeated here.

[0054] All indoor units can be turned on and off at the same time, which means that all indoor units can be turned on and off at the same time. For example, one air conditioner remote controller can be used to turn on all indoor units at once, or to turn off all indoor units at once. In addition, since the indoor units are divided into master and slave, by turning on or off the master indoor unit, all slave indoor units can be turned on or off together with the master indoor unit.

[0055] It should be noted that the application scenarios of the above-mentioned same indoor units turning on and off at the same time can be: in the same area with a large indoor space, such as a large conference room, if an air-conditioning outdoor unit is only equipped with one air-conditioning indoor unit, then during cooling, only local area cooling may be achieved, resulting in uneven cooling; and if an air-conditioning indoor unit is equipped with multiple air-conditioning indoor units, not only can uniform cooling be achieved through the multiple air-conditioning indoor units, but the control method of turning on and off at the same time is very convenient, and the user experience is better.

[0056] It should be understood that the above-mentioned multi-indoor unit combination is only a preferred combination of the embodiments of the present application. In other embodiments, the indoor units may also be different and / or have different opening and closing modes. For example, an air-conditioning outdoor unit is configured with two air-conditioning indoor units, and the capacity segment of one of the air-conditioning indoor units is 1 / 3 of that of the air-conditioning outdoor unit, and the capacity segment of the other air-conditioning indoor unit is 2 / 3 of that of the air-conditioning indoor unit. The specific configuration can be based on actual application requirements and is not limited here.

[0057] See also Figure 2 , shows a flow chart of a refrigerant regulation method for an air-conditioning system in an embodiment of the present application.

[0058] like Figure 2As shown, according to the first aspect of an embodiment of the present application, a refrigerant regulation method for an air-conditioning system is provided, wherein the air-conditioning system includes at least one indoor unit, and the method is mainly used in the debugging stage when the air-conditioning outdoor unit and the air-conditioning indoor unit are configured, and is used to determine the refrigerant amount adjustment ratio of the air-conditioning system. It can be understood that the method can also be applied to the actual operation stage of the air-conditioning system, by determining the adjustment ratio of the system refrigerant amount to make the system operate in a better state.

[0059] Specifically, the refrigerant adjustment method of the air-conditioning system includes but is not limited to being implemented by steps S101 to S103:

[0060] Step S101. For each indoor unit attribute, obtain the sum of parameter values ​​of the at least one indoor unit on the indoor unit attribute, wherein the indoor unit attribute is an attribute that affects the working effect of the air conditioning system;

[0061] It should be noted that the indoor unit properties refer to the properties that affect the working effect of the air-conditioning system, such as the properties that affect the cooling and heating effects of the air-conditioning system; preferably, the indoor unit properties in the embodiment of the present application include but are not limited to the indoor unit heat exchanger area, the indoor unit air volume, the length of the pipe connecting the indoor and outdoor units, the installation height of the indoor unit, etc. It can be understood that other indoor unit properties that can affect the working effect of the air-conditioning system are also within the protection scope of the present application and will not be repeated here.

[0062] Among them, the indoor unit heat exchanger area and indoor unit air volume are the two main properties that affect the working effect of the air conditioning system. For example: if there are two or more indoor units, if the sum of the heat exchanger areas of each indoor unit is much larger than the heat exchanger area of ​​the benchmark indoor unit, then when heating at low temperature, the indoor unit as a condenser has less liquid refrigerant, and the pressure will be particularly low, resulting in a very poor heating effect; conversely, if the sum of the heat exchanger areas of each indoor unit is much smaller than the heat exchanger area of ​​the benchmark indoor unit, then when cooling at high temperature, the indoor unit as an evaporator has more liquid refrigerant, and the pressure will be too high, resulting in too much cooling effect. Similarly, if the sum of the air volumes of each indoor unit is much larger than the air volume of the benchmark indoor unit, then when heating at low temperature, the indoor unit air volume is small, resulting in poor heating effect; conversely, if the sum of the air volumes of each indoor unit is much smaller than the air volume of the benchmark indoor unit, then when cooling at high temperature, the indoor unit air volume is large, resulting in too much cooling.

[0063] It can be understood that properties such as the length of the pipe connecting the indoor and outdoor units and the installation height of the indoor unit have less impact on the system working effect than the indoor unit heat exchanger area and the indoor unit air volume. Therefore, in order to simplify the calculation and improve the refrigerant regulation efficiency, the length of the pipe connecting the indoor and outdoor units and the installation height of the indoor unit can be ignored. If the purpose is to improve the accuracy of refrigerant regulation, the length of the pipe connecting the indoor and outdoor units and the installation height of the indoor unit can be taken into consideration. The specific selection can be made according to the actual application requirements and is not limited here.

[0064] For each indoor unit attribute, obtaining the sum of the parameter values ​​of the at least one indoor unit on the indoor unit attribute means: for each indoor unit attribute, adding and summing the parameter values ​​of the indoor unit attribute of each indoor unit to obtain the sum of the parameter values. For example: if there are two indoor units, for the heat exchanger area, the sum of the parameter values ​​of the heat exchanger areas of the two indoor units is calculated to be S1+S2. Of course, if there are two identical indoor units, the sum of the parameter values ​​of the heat exchanger areas is 2S1; for another example: if there are three indoor units, for the indoor unit air volume, the sum of the parameter values ​​of the air volume of the three indoor units is calculated to be F1+F2+F3. Of course, if there are three identical indoor units, the sum of the parameter values ​​of the air volume of the three indoor units is 3F1.

[0065] In some embodiments, each indoor unit has preset parameter values ​​of various indoor unit attributes at the factory. At the same time, the parameter values ​​of the indoor unit attributes of the benchmark indoor unit are set in a terminal device, such as in an air-conditioning outdoor unit, and then the air-conditioning outdoor unit detects the configured indoor unit and obtains the parameter values ​​of various indoor unit attributes. Of course, it is understandable that the terminal device can also be the air-conditioning indoor unit itself, or a test terminal independent of the air-conditioning outdoor unit and the air-conditioning indoor unit, which is not limited here.

[0066] In some embodiments, before step S101, the method further includes:

[0067] If the number of indoor units of the air-conditioning system is greater than or equal to two, then for each indoor unit attribute, a sum of parameter values ​​of the at least one indoor unit on the indoor unit attribute is obtained.

[0068] For example: when the unit is installed and debugged, the number of indoor units can be detected by the air conditioner outdoor unit. If it is detected that the number of indoor units in the air conditioning system is one, the target ratio of the indoor unit properties of this indoor unit to the benchmark indoor unit can be assumed to be an ideal value, such as the target ratio of the heat exchanger area and the target ratio of the indoor unit air volume are both 100%. At this time, there is no need to execute step S101, and no prompt is given, and the air conditioning system starts and runs normally. When the air conditioner outdoor unit detects that the number of indoor units in the air conditioning system is two, for example, the two indoor units are a TWINS combination, then step S101 is entered; when the air conditioner outdoor unit detects that the number of indoor units in the air conditioning system is three, for example, the three indoor units are a TRIPLES combination, then step S101 is executed; when the air conditioner outdoor unit detects that the number of indoor units in the air conditioning system is more than three, step S101 is also executed, and so on, which will not be repeated here.

[0069] Step S102. Calculate the target ratio between the sum of each parameter value and the reference parameter value of the corresponding internal machine attribute;

[0070] Among them, the corresponding indoor unit attributes are preferably the corresponding indoor unit attributes of the benchmark indoor unit, and the benchmark parameter values ​​of the corresponding indoor unit attributes are preferably the attribute parameter values ​​of the benchmark indoor unit, for example, the parameter value of the heat exchanger area of ​​the benchmark indoor unit is S, and the parameter value of the air volume of the benchmark indoor unit is F.

[0071] The target ratio between the sum of each parameter value and the benchmark parameter value of the corresponding indoor unit property can be: the target ratio between the sum of the parameter values ​​S1+S2+...+Sn of the heat exchanger area of ​​each indoor unit and the benchmark parameter value S of the heat exchanger area of ​​the benchmark indoor unit.

[0072] The target ratio between the sum of each parameter value and the reference parameter value of the corresponding indoor unit attribute can be: the target ratio between the sum of the parameter values ​​of the air volume of each indoor unit F1+F2+...+Fn and the reference parameter value F of the air volume of the reference indoor unit

[0073] In some embodiments, the target ratio ranges from [0.1, 1.9]. Therefore, during the debugging stage of configuring the air-conditioning outdoor unit and the air-conditioning indoor unit, try to select an indoor unit combination whose target ratio corresponding to the sum of the parameter values ​​of the indoor unit properties is within the range, so as to avoid excessive differences in the properties of the indoor and outdoor units, which increases the difficulty of refrigerant regulation.

[0074] In some embodiments, based on the above solution, after step S102, the method further includes:

[0075] If the target ratios corresponding to the properties of the indoor units are all outside the preset ratio range, the target refrigerant adjustment ratio of the air-conditioning system is determined according to the target ratios corresponding to the properties of the indoor units.

[0076] In some embodiments, the preset ratio range can be [0.9, 1.1]. Of course, in other embodiments, the preset ratio range can also be [0.8, 1.2], [0.85, 1.15], [0.95, 1.05], etc. It can be set specifically according to the adjustment accuracy and is not limited here.

[0077] For example: considering the two indoor unit properties of heat exchanger area and air volume, the preset ratio range is [0.9, 1.1]. If the target ratio corresponding to the heat exchanger area of ​​each indoor unit is 0.8, and the target ratio corresponding to the air volume of each indoor unit is 1.3, it means that the target ratios corresponding to the indoor unit properties are all outside the preset ratio range. Then, the target refrigerant adjustment ratio of the air-conditioning system is determined according to the target ratios of 0.8 and 1.3.

[0078] It should be understood that, based on the above disclosure, if the target ratio corresponding to at least one indoor unit attribute is within the preset ratio range, there is no need to determine the target refrigerant adjustment ratio of the air-conditioning system.

[0079] For example, during the debugging phase of the air conditioning system, the two indoor unit properties of heat exchanger area and air volume are considered, and the preset ratio range is [0.9, 1.1]. When the outdoor unit detects two identical indoor units, namely the TWINS combination, the target ratio 2S1 / S of the sum of the parameter values ​​of the heat exchanger area of ​​the TWINS combination and the heat exchanger area parameter value of the reference indoor unit is automatically calculated, and the target ratio 2F1 / F of the sum of the parameter values ​​of the air volume of the TWINS combination and the air volume parameter value of the reference indoor unit is calculated. If at least one of the calculated target ratios 2S1 / S and 2F1 / F is within the preset ratio range [0.9, 1.1], the system will not prompt, and the system will start and run normally after the debugging is completed; if the calculated target ratios 2S1 / S and 2F1 / F are both outside the preset ratio range [0.9, 1.1], the system cannot start and run directly, and it is necessary to determine the target refrigerant adjustment ratio of the air conditioning system.

[0080] For example: during the debugging stage of the air conditioning system, considering the two indoor unit attributes of heat exchanger area and air volume, the preset ratio range is [0.9, 1.1]. When the outdoor unit detects three identical indoor units, namely the TRIPLES combination, the target ratio 3S1 / S of the sum of the parameter values ​​of the heat exchanger area of ​​the TRIPLES combination and the parameter value of the heat exchanger area of ​​the reference indoor unit is automatically calculated, and the target ratio 3F1 / F of the sum of the parameter values ​​of the air volume of the TRIPLES combination and the parameter value of the air volume of the reference indoor unit is calculated. If at least one of the calculated target ratios 3S1 / S and 3F1 / F is within the preset ratio range [0.9, 1.1], the system will not prompt, and the system will start and run normally after the debugging is completed; if the calculated target ratios 3S1 / S and 3F1 / F are both outside the preset ratio range [0.9, 1.1], the system cannot start and run directly, and it is necessary to determine the target refrigerant adjustment ratio of the air conditioning system.

[0081] In some embodiments, the target refrigerant adjustment ratio refers to the ratio of the adjusted refrigerant amount to the reference refrigerant amount, and the reference refrigerant amount refers to the amount of refrigerant configured in the air conditioner outdoor unit that can just supply the reference indoor unit to operate in the best state. The target refrigerant adjustment ratio can be a ratio that is increased based on the reference refrigerant amount, or a ratio that is reduced based on the reference refrigerant amount.

[0082] In some embodiments, the target refrigerant adjustment ratio refers to the ratio of the refrigerant adjustment amount to the reference refrigerant amount.

[0083] In some embodiments of the present application, based on the above solution, after step S102, the method further includes:

[0084] If the target ratios corresponding to the properties of the indoor units greater than or equal to a preset number are outside the preset ratio range, the target refrigerant adjustment ratio of the air-conditioning system is determined according to the target ratios corresponding to the properties of the various indoor units.

[0085] For example: considering the indoor unit properties of heat exchanger area and air volume, if the target ratio corresponding to one indoor unit property is greater than or equal to that outside the preset ratio range, then no matter the target ratio corresponding to the heat exchanger area is outside the preset range or the target ratio corresponding to the air volume is outside the preset range, it is necessary to determine the target refrigerant adjustment ratio of the air-conditioning system; if the target ratio corresponding to two indoor unit properties is greater than or equal to that outside the preset ratio range, then the target refrigerant adjustment ratio of the air-conditioning system needs to be determined only when both the target ratios of the heat exchanger area and the air volume are outside the preset ratio range.

[0086] In some embodiments of the present application, based on the above solution, after step S102, the method further includes:

[0087] If the target ratio corresponding to the target indoor unit property is outside the preset ratio range, the target refrigerant adjustment ratio of the air-conditioning system is determined according to the target ratios corresponding to the properties of each indoor unit.

[0088] For example, considering the heat exchanger area and air volume indoor unit attributes, the heat exchanger area is set as the target indoor unit attribute. Then, only when the target ratio corresponding to the heat exchanger area is outside the preset ratio range, the target refrigerant adjustment ratio of the air-conditioning system needs to be determined, without paying attention to whether the target ratio corresponding to the air volume is outside the preset ratio range. Of course, it is understandable that both the heat exchanger area and the air volume can be used as the target indoor unit attributes, which is not limited here.

[0089] Step S103: Determine the target refrigerant adjustment ratio of the air-conditioning system according to the target ratios corresponding to the properties of the indoor units.

[0090] In some embodiments, when the target ratios corresponding to the properties of each indoor unit are calculated through a terminal device, a prompt message indicating that the refrigerant needs to be adjusted is displayed on the terminal device. If there are multiple target ratios, each target ratio is displayed alternately on the terminal device. For example, a prompt message indicating that the refrigerant needs to be adjusted is displayed on the air conditioner outdoor unit, and the target ratio corresponding to the heat exchanger area and the target ratio corresponding to the air volume are displayed alternately.

[0091] In some embodiments, determining the refrigerant adjustment ratio of the air-conditioning system according to the target ratio corresponding to the properties of each indoor unit includes:

[0092] Step S1031A. Obtain a preset mapping relationship table, in which the preset mapping relationship table records the corresponding relationship between the refrigerant adjustment ratio and the ratio corresponding to each indoor unit attribute;

[0093] For example, in Table 1, the corresponding relationship between the ratio corresponding to the heat exchanger area and the ratio corresponding to the air volume and the refrigerant adjustment ratio is shown. Specifically, the refrigerant adjustment ratio of the air-conditioning system is determined by the ratio corresponding to the heat exchanger area and the ratio corresponding to the air volume. For example: when the ratio corresponding to the heat exchanger area is 0.1 and the ratio corresponding to the air volume is 0.1, the refrigerant adjustment ratio of the air-conditioning system is 0.51; when the ratio corresponding to the heat exchanger area is 0.2 and the ratio corresponding to the air volume is 0.2, the refrigerant adjustment ratio of the air-conditioning system is 0.54; when the ratio corresponding to the heat exchanger area is 1.2 and the ratio corresponding to the air volume is 1.2, the refrigerant adjustment ratio of the air-conditioning system is 1.08; when the ratio corresponding to the heat exchanger area is 1.3 and the ratio corresponding to the air volume is 1.2, the refrigerant adjustment ratio of the air-conditioning system is 1.20. The specific corresponding relationship between the ratio and the refrigerant adjustment ratio can be obtained by looking up the table, which will not be repeated here.

[0094] Table 1 Preset mapping relationship table

[0095]

[0096] In some embodiments, the ratios corresponding to the attributes of the internal machines are not limited to those shown in the preset mapping relationship in Table 1, that is, the ratios are not limited to multiples of 0.1.

[0097] Step S1032A: Search the preset mapping relationship table for a target refrigerant adjustment ratio that matches the target ratio corresponding to each indoor unit attribute.

[0098] In some embodiments of the present application, based on the above-mentioned solution, determining the refrigerant adjustment ratio of the air-conditioning system according to the target ratio corresponding to the properties of each indoor unit includes:

[0099] Step S1031B. Obtain a pre-built mapping relationship function, wherein the mapping relationship function is used to characterize the functional relationship between the refrigerant adjustment ratio and the ratios corresponding to the properties of each indoor unit;

[0100] The mapping relationship function refers to: a mapping relationship function constructed with the ratios corresponding to the properties of each indoor unit as independent variables and the refrigerant adjustment ratio of the system as dependent variable. For example, the mapping relationship function may be f(x, y), wherein x and y may be the ratios corresponding to the properties of each indoor unit, respectively. When the ratios corresponding to the properties of each indoor unit are determined, the refrigerant adjustment ratio of the system may be calculated based on the mapping relationship function.

[0101] Step S1032B: Calculate the target refrigerant adjustment ratio through the mapping relationship function according to the target ratio corresponding to the properties of each indoor unit.

[0102] It is understandable that the benefit of calculating the target refrigerant adjustment ratio through the mapping relationship function is that the calculation result of the refrigerant adjustment ratio is more accurate, and the adjustment of the refrigerant amount is more delicate, so that the system can work in a better state.

[0103] In some embodiments of the present application, based on the aforementioned solution, the refrigerant adjustment ratio is positively correlated with the ratios corresponding to the properties of each indoor unit.

[0104] In some embodiments, the refrigerant adjustment ratio is positively correlated with the ratios corresponding to the properties of each indoor unit, which means that the larger the ratios corresponding to the properties of each indoor unit, the larger the refrigerant adjustment ratio; conversely, the smaller the ratios corresponding to the properties of each indoor unit, the smaller the refrigerant adjustment ratio. In this case, the refrigerant adjustment ratio refers to the ratio of the adjusted refrigerant amount to the reference refrigerant amount, such as the adjustment ratio shown in Table 1.

[0105] In some embodiments of the present application, based on the above solution, after determining the target refrigerant adjustment ratio of the air-conditioning system, the method further includes:

[0106] According to the target refrigerant adjustment ratio of the air-conditioning system, the refrigerant amount of the outdoor unit of the air-conditioning system is adjusted.

[0107] In some embodiments, a reference refrigerant amount is stored in the air conditioner outdoor unit. After the target refrigerant adjustment ratio is determined, the adjustment amount of the system refrigerant can be further determined, so that the refrigerant amount of the system is adjusted according to the adjustment amount.

[0108] In some embodiments, if the target refrigerant adjustment ratio of the air-conditioning system is to reduce the amount of refrigerant allocated to the air-conditioning outdoor unit based on the baseline refrigerant amount, the amount of refrigerant supplied to the outdoor unit can be directly reduced based on the baseline refrigerant amount. For example, if the target refrigerant adjustment ratio is 0.8, it is necessary to reduce the refrigerant amount by 20% based on the baseline refrigerant amount; if the target refrigerant adjustment ratio of the air-conditioning system is to increase the amount of refrigerant allocated to the air-conditioning outdoor unit based on the baseline refrigerant amount, for example, if the target refrigerant adjustment ratio is 1.2, it is necessary to increase the refrigerant amount by 20% based on the baseline refrigerant amount.

[0109] In the present application, one way to adjust the amount of refrigerant in the outdoor unit of the air-conditioning system may be to increase the amount of refrigerant of the outdoor unit by a target adjustment ratio from the outside. Another way may be to set up a spare refrigerant storage area inside the outdoor unit, which is different from the reference refrigerant storage area. By setting a control valve, such as a solenoid valve, in the spare refrigerant storage area, the valve opening is controlled to increase the amount of refrigerant in the outdoor unit according to the target refrigerant adjustment ratio.

[0110] In some embodiments, if each indoor unit is a different indoor unit, when adjusting the amount of refrigerant in the system, the amount of refrigerant supplied to each indoor unit can be controlled by setting a diverter valve or other device.

[0111] Based on the above disclosed content, for each indoor unit attribute that affects the working effect of the air-conditioning system, the sum of the parameter values ​​of at least one indoor unit on the indoor unit attribute is obtained; then, the target ratio between the sum of each parameter value and the benchmark parameter value of the corresponding indoor unit attribute is calculated, and the target ratio can reflect the difference between the attribute parameter value of the currently configured indoor unit and the attribute parameter value of the standard indoor unit; finally, the target refrigerant adjustment ratio of the air-conditioning system is determined according to the target ratio, so as to adjust the system refrigerant amount according to the ratio, eliminate the influence of the difference in the indoor unit attribute parameter values ​​on the system operating state, and make the system operate in a better state.

[0112] The following describes an embodiment of the device of the present application, which can be used to execute the method in the above embodiment of the present application. For details not disclosed in the embodiment of the device of the present application, please refer to the above embodiment of the method of the present application.

[0113] See also Figure 3 , shows a schematic structural diagram of a refrigerant regulating device of an air-conditioning system according to an embodiment of the present application.

[0114] like Figure 3 As shown, according to a second aspect of an embodiment of the present application, a refrigerant conditioning device for an air-conditioning system is provided, the air-conditioning system comprising at least one indoor unit, and the device comprising:

[0115] The parameter acquisition module 201 is used to acquire, for each indoor unit attribute, a sum of parameter values ​​of the at least one indoor unit on the indoor unit attribute, wherein the indoor unit attribute affects the working effect of the air conditioning system;

[0116] A ratio calculation module 202, used to calculate a target ratio between the sum of each parameter value and a reference parameter value corresponding to an internal engine property;

[0117] The ratio determination module 203 is used to determine the target refrigerant adjustment ratio of the air-conditioning system according to the target ratio corresponding to the properties of each indoor unit.

[0118] In some embodiments of the present application, the parameter acquisition module is further used to:

[0119] If the number of indoor units of the air-conditioning system is greater than or equal to two, then for each indoor unit attribute, a sum of parameter values ​​of the at least one indoor unit on the indoor unit attribute is obtained.

[0120] In some embodiments of the present application, after calculating the target ratio between the sum of each parameter value and the reference parameter value of the corresponding internal machine property, the ratio determination module is further used to:

[0121] If the target ratios corresponding to the properties of the indoor units are all outside the preset ratio range, the target refrigerant adjustment ratio of the air-conditioning system is determined according to the target ratios corresponding to the properties of the indoor units.

[0122] In some embodiments of the present application, after calculating the target ratio between the sum of each parameter value and the reference parameter value of the corresponding internal machine property, the ratio determination module is further used to:

[0123] If the target ratios corresponding to the properties of the indoor units greater than or equal to a preset number are outside the preset ratio range, the target refrigerant adjustment ratio of the air-conditioning system is determined according to the target ratios corresponding to the properties of the various indoor units.

[0124] In some embodiments of the present application, after calculating the target ratio between the sum of each parameter value and the reference parameter value of the corresponding internal machine property, the ratio determination module is further used to:

[0125] If the target ratio corresponding to the target indoor unit property is outside the preset ratio range, the target refrigerant adjustment ratio of the air-conditioning system is determined according to the target ratios corresponding to the properties of each indoor unit.

[0126] In some embodiments of the present application, the ratio determination module is specifically used to:

[0127] Obtaining a preset mapping relationship table, wherein the preset mapping relationship table records the corresponding relationship between the refrigerant adjustment ratio and the ratio corresponding to each indoor unit attribute;

[0128] The target refrigerant adjustment ratio that matches the target ratio corresponding to the attribute of each indoor unit is searched in the preset mapping relationship table.

[0129] In some embodiments of the present application, the ratio determination module is specifically used to:

[0130] Obtaining a pre-built mapping relationship function, where the mapping relationship function is used to characterize the functional relationship between the refrigerant adjustment ratio and the ratios corresponding to the properties of each indoor unit;

[0131] According to the target ratios corresponding to the properties of each indoor unit, the target refrigerant adjustment ratio is calculated through the mapping relationship function.

[0132] In some embodiments of the present application, the refrigerant adjustment ratio is positively correlated with the ratios corresponding to the properties of each indoor unit.

[0133] In some embodiments of the present application, after determining the target refrigerant adjustment ratio of the air-conditioning system, the device further includes:

[0134] The refrigerant adjustment module is used to adjust the refrigerant amount of the outdoor unit of the air-conditioning system according to the target refrigerant adjustment ratio of the air-conditioning system.

[0135] In some embodiments of the present application, the internal machine attributes include at least

[0136] Air volume and / or internal heat exchanger area.

[0137] In some embodiments of the present application, the air-conditioning system includes at least one indoor unit that can be turned on and off at the same time.

[0138] In some embodiments of the present application, parameter values ​​of the same indoor unit attribute of each indoor unit are the same.

[0139] Based on the same inventive concept, the present application also provides an air conditioning device 400 capable of implementing the method described in the first aspect.

[0140] See also Figure 4 , showing a schematic structural diagram of an air-conditioning device.

[0141] It should be understood that Figure 4 The air conditioning device 400 shown is merely an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0142] like Figure 4 As shown, the air conditioning device 400 is in the form of a general computing device. The components of the air conditioning device 400 may include but are not limited to: at least one processing unit 410, at least one storage unit 420, and a bus 430 connecting different system components (including the storage unit 420 and the processing unit 410).

[0143] The storage unit stores program codes, which can be executed by the processing unit 410, so that the processing unit 410 executes the steps described in the above “Example Method” section of this specification according to various exemplary implementations of the present application.

[0144] The storage unit 420 may include a readable medium in the form of a volatile storage unit, such as a random access memory unit (RAM) 421 and / or a cache memory unit 422 , and may further include a read-only memory unit (ROM) 423 .

[0145] The storage unit 420 may also include a program / utility 424 having a set (at least one) of program modules 425, such program modules 425 including but not limited to: an operating system, one or more application programs, other program modules, and program data, each of which or some combination may include an implementation of a network environment.

[0146] Bus 430 may represent one or more of several types of bus structures, including a memory unit bus or memory unit controller, a peripheral bus, an accelerated graphics port, a processing unit, or a local bus using any of a variety of bus architectures.

[0147] The air conditioning device 400 may also communicate with one or more external devices 500 (e.g., keyboards, pointing devices, Bluetooth devices, etc.), one or more devices that enable a user to interact with the air conditioning device 400, and / or any device that enables the air conditioning device 400 to communicate with one or more other computing devices (e.g., routers, modems, etc.). Such communication may be performed via an input / output (I / O) interface 450. Furthermore, the air conditioning device 400 may also communicate with one or more networks (e.g., a local area network (LAN), a wide area network (WAN), and / or a public network, such as the Internet) via a network adapter 460. Figure 4 As shown, the network adapter 460 communicates with other modules of the air conditioning device 400 via the bus 430. It should be understood that, although not shown in the figure, other hardware and / or software modules can be used in conjunction with the air conditioning device 400, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems.

[0148] The above description is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of the claims of the present application.

Claims

1. A refrigerant regulation method for an air conditioning system, characterized in that: The air conditioning system includes at least one indoor unit, and the method includes: For each indoor unit attribute, obtaining a sum of parameter values ​​of the at least one indoor unit on the indoor unit attribute, wherein the indoor unit attribute is an attribute that affects the working effect of the air-conditioning system; Calculating a target ratio between the sum of each of the parameter values ​​and a reference parameter value corresponding to the internal engine property; The target refrigerant adjustment ratio of the air-conditioning system is determined according to the target ratios corresponding to the properties of the indoor units.

2. The method according to claim 1, characterized in that The method further comprises: If the number of indoor units of the air-conditioning system is greater than or equal to two, then for each indoor unit attribute, a sum of parameter values ​​of the at least one indoor unit on the indoor unit attribute is obtained.

3. The method according to claim 1, characterized in that After calculating the target ratio between the sum of each parameter value and the reference parameter value of the corresponding internal machine property, the method further includes: If the target ratios corresponding to the properties of the indoor units are all outside the preset ratio range, the target refrigerant adjustment ratio of the air-conditioning system is determined according to the target ratios corresponding to the properties of the indoor units.

4. The method according to claim 1, characterized in that: After calculating the target ratio between the sum of each parameter value and the reference parameter value of the corresponding internal machine property, the method further includes: If the target ratios corresponding to the properties of the indoor units greater than or equal to a preset number are outside the preset ratio range, the target refrigerant adjustment ratio of the air-conditioning system is determined according to the target ratios corresponding to the properties of the various indoor units.

5. The method according to claim 1, characterized in that: After calculating the target ratio between the sum of each parameter value and the reference parameter value of the corresponding internal machine property, the method further includes: If the target ratio corresponding to the target indoor unit property is outside the preset ratio range, the target refrigerant adjustment ratio of the air-conditioning system is determined according to the target ratios corresponding to the properties of each indoor unit.

6. The method according to claim 1, characterized in that The step of determining the refrigerant adjustment ratio of the air-conditioning system according to the target ratio corresponding to the properties of each indoor unit includes: Obtaining a preset mapping relationship table, wherein the preset mapping relationship table records the corresponding relationship between the refrigerant adjustment ratio and the ratio corresponding to each indoor unit attribute; The target refrigerant adjustment ratio that matches the target ratio corresponding to the attribute of each indoor unit is searched in the preset mapping relationship table.

7. The method according to claim 1, characterized in that The step of determining the refrigerant adjustment ratio of the air-conditioning system according to the target ratio corresponding to the properties of each indoor unit includes: Obtaining a pre-built mapping relationship function, where the mapping relationship function is used to characterize the functional relationship between the refrigerant adjustment ratio and the ratios corresponding to the properties of each indoor unit; According to the target ratios corresponding to the properties of each indoor unit, the target refrigerant adjustment ratio is calculated through the mapping relationship function.

8. The method according to claim 6 or 7, characterized in that: The refrigerant adjustment ratio is positively correlated with the ratios corresponding to the properties of each indoor unit.

9. The method according to claim 1, characterized in that: After determining the target refrigerant adjustment ratio of the air conditioning system, the method further includes: According to the target refrigerant adjustment ratio of the air-conditioning system, the refrigerant amount of the outdoor unit of the air-conditioning system is adjusted.

10. The method according to claim 1, characterized in that The indoor unit attributes include at least the indoor unit air volume and / or the indoor unit heat exchanger area.

11. The method according to claim 1, characterized in that The air conditioning system includes at least one indoor unit that can be turned on and off at the same time.

12. The method according to claim 1, characterized in that The parameter values ​​of the same indoor unit attributes of each indoor unit are the same.

13. A refrigerant conditioning device for an air conditioning system, characterized in that: The air conditioning system includes at least one indoor unit, and the device includes: a parameter acquisition module, configured to acquire, for each indoor unit attribute, a sum of parameter values ​​of the at least one indoor unit on the indoor unit attribute, wherein the indoor unit attribute affects the working effect of the air conditioning system; a ratio calculation module, used for calculating a target ratio between the sum of each of the parameter values ​​and a reference parameter value of a corresponding internal engine property; The ratio determination module is used to determine the target refrigerant adjustment ratio of the air-conditioning system according to the target ratio corresponding to the properties of each indoor unit.

14. An air conditioning device, characterized in that: The method comprises one or more processors and one or more memories, wherein at least one program code is stored in the one or more memories, and the at least one program code is loaded and executed by the one or more processors to implement the operations performed by the method according to any one of claims 1 to 12.

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