Refrigerant adjustment method and device for air conditioning system and air conditioning equipment

Abstract

The application 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. The method comprises the following steps: acquiring a parameter value sum of the at least one indoor unit on each indoor unit attribute, wherein the indoor unit attribute is an attribute affecting 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 determining a target refrigerant adjusting ratio of the air conditioning system according to the target ratio of each indoor unit attribute. The technical scheme provided by the application can acquire the target refrigerant adjusting ratio of the air conditioning system, so that the system refrigerant amount is adjusted according to the ratio, and the system can run in a better state.

Description

TECHNICAL FIELD

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

[0002] At present, based on some special needs of users, in the built air conditioning system, there will be some cases of non-standard indoor units configured in air conditioning outdoor units. In this case, the unreasonable refrigerant amount in the air conditioning outdoor unit will lead to poor running state of the air conditioning system, and even system failure may occur in severe cases. SUMMARY

[0003] Embodiments of the present application provide a refrigerant adjustment method and device of an air conditioning system and air conditioning equipment, which can at least determine the refrigerant adjustment ratio of the air conditioning system to some extent, so as to ensure that the air conditioning system runs in a better state.

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

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

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

[0007] Calculating a target ratio between each parameter value sum and a reference parameter value of the corresponding indoor unit attribute;

[0008] According to the target ratio corresponding to each indoor unit attribute, determining a target refrigerant adjustment ratio of the air conditioning system.

[0009] In some embodiments of the present application, based on the foregoing scheme, the method further comprises:

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

[0011] In some embodiments of the present application, based on the foregoing scheme, after calculating the target ratio between each parameter value sum and the reference parameter value of the corresponding indoor unit attribute, the method further comprises:

[0012] If the target ratio corresponding to each indoor unit attribute is outside the preset ratio range, according to the target ratio corresponding to each indoor unit attribute, determining the target refrigerant adjustment ratio of the air conditioning system.

[0013] In some embodiments of the present application, based on the foregoing scheme, after calculating the target ratio between each parameter value sum and the reference parameter value corresponding to the indoor unit attribute, the method further comprises:

[0014] If the target ratio corresponding to the indoor unit attribute greater than or equal to the preset number is outside the preset ratio range, the target refrigerant adjustment ratio of the air conditioning system is determined according to the target ratio corresponding to each indoor unit attribute.

[0015] In some embodiments of the present application, based on the foregoing scheme, after calculating the target ratio between each parameter value sum and the reference parameter value corresponding to the indoor unit attribute, the method further comprises:

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

[0017] In some embodiments of the present application, based on the foregoing scheme, the target refrigerant adjustment ratio of the air conditioning system is determined according to the target ratio corresponding to each indoor unit attribute, comprising:

[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] Finding the target refrigerant adjustment ratio matching the target ratio corresponding to each indoor unit attribute in the preset mapping relationship table.

[0020] In some embodiments of the present application, based on the foregoing scheme, the target refrigerant adjustment ratio of the air conditioning system is determined according to the target ratio corresponding to each indoor unit attribute, comprising:

[0021] Obtaining a pre-constructed mapping relationship function, wherein the mapping relationship function is used to represent the functional relationship between the refrigerant adjustment ratio and the ratio corresponding to each indoor unit attribute;

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

[0023] In some embodiments of the present application, based on the foregoing scheme, the refrigerant adjustment ratio and the ratio corresponding to each indoor unit attribute are positively correlated.

[0024] In some embodiments of the present application, based on the foregoing scheme, after determining the target refrigerant adjustment ratio of the air conditioning system, the method further comprises:

[0025] Adjusting the refrigerant amount of the outdoor unit in the air conditioning system according to the target refrigerant adjustment ratio of the air conditioning system.

[0026] In some embodiments of the present application, based on the foregoing scheme, the internal unit attribute at least includes internal unit air volume and / or internal unit heat exchanger area.

[0027] In some embodiments of the present application, based on the foregoing scheme, the air conditioning system includes at least one internal unit with same opening and closing.

[0028] In some embodiments of the present application, based on the foregoing scheme, the parameter values of each internal unit on the same internal unit attribute are the same.

[0029] According to a second aspect of embodiments of the present application, a refrigerant adjustment device of an air conditioning system is provided, the air conditioning system including at least one internal unit, the device including:

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

[0031] a ratio calculation module configured to calculate a target ratio between each parameter value sum and a reference parameter value of the corresponding internal unit attribute;

[0032] a proportion determination module configured to determine a target refrigerant adjustment proportion of the air conditioning system according to the target ratio of each internal unit attribute.

[0033] According to a third aspect of embodiments of the present application, an air conditioning device is provided, including one or more processors and one or more memories, the one or more memories storing at least one program code, the at least one program code being loaded and executed by the one or more processors to implement operations performed by the method according to any one of the first aspect.

[0034] In the present application, for each internal unit attribute affecting working effect of the air conditioning system, a parameter value sum of the at least one internal unit on the internal unit attribute is acquired; then, a target ratio between each parameter value sum and a reference parameter value of the corresponding internal unit attribute is calculated, the target ratio being capable of reflecting difference between attribute parameter value of the currently configured internal unit and attribute parameter value of a standard internal unit; finally, a target refrigerant adjustment proportion of the air conditioning system is determined according to the target ratio, so as to adjust system refrigerant amount according to the proportion, eliminate influence of difference of the internal unit attribute parameter value on system running state, and make the system run in a better state.

[0035] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0036] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments consistent with the application and, together with the description, further serve to explain the principles of the application. It is to be understood that the drawings are only schematic, and that they do not necessarily correspond to the actual relative sizes of the components. It is also to be understood that the embodiments shown in the drawings are merely meant to illustrate the application and that, for the purpose of clarity, not every component can be shown to scale.

[0037] Figure 1 Fig. 1 shows a schematic diagram of the structure of an air conditioning system according to an embodiment of the application;

[0038] Figure 2 Fig. 2 shows a flow chart of a refrigerant adjustment method for an air conditioning system according to an embodiment of the application;

[0039] Figure 3 Fig. 3 shows a schematic diagram of a refrigerant adjustment device for an air conditioning system according to an embodiment of the application;

[0040] Figure 4 Fig. 4 shows a schematic diagram of an air conditioning apparatus according to an embodiment of the application. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of the present application.

[0042] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the application. One skilled in the relevant art will recognize, however, that the application can be practiced without one or more of the specific details, or with other methods, components, materials, and so forth. In other instances, well-known structures, devices, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the application.

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

[0044] The flow chart shown in the drawings is only an exemplary illustration, and is not necessarily to include all the contents and operations / steps, nor is it necessarily to be executed in the order as described. For example, some operations / steps can be further decomposed, and some operations / steps can be combined or partially combined, so that the actual execution order can be changed according to the actual situation.

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

[0046] The following will be described in conjunction with Figure 1 and Figure 2 The refrigerant adjustment method of the air conditioning system proposed in the present application will be described.

[0047] Referring to Figure 1 , a structure schematic diagram of the air conditioning system in the embodiments of the present application is shown.

[0048] First, as Figure 1 indicated, in the present application, the air conditioning system includes at least one indoor unit; that is, the air conditioning system can 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 one indoor unit, if the capacity segment of the indoor unit is exactly matched with the external force segment of the air conditioning outdoor unit, and the system refrigerant amount required by the indoor unit is exactly matched with the system refrigerant amount supplied by the air conditioning outdoor unit, the indoor unit configured at this time is defined as a reference indoor unit, and in the embodiments of the present application, if not additionally explained, the reference indoor unit mentioned below is the reference indoor unit defined here, which will not be described below.

[0050] The capacity segment in the embodiments of the present application refers to the rated parameters marked on the nameplates of the air conditioning indoor and outdoor units, and the rated parameters can be the refrigerating capacity. For example, if the refrigerating capacity marked on the nameplate of the outdoor unit is 50 kW, and the refrigerating capacity marked on the nameplate of the indoor unit is also 50 kW, it indicates that the capacity segments of the indoor and outdoor units are matched.

[0051] It can be understood that when the air conditioning outdoor unit is configured with one indoor unit, the capacity segment and the refrigerant demand of the one indoor unit are not necessarily completely matched with the outdoor unit, and the system refrigerant amount can be adjusted by the refrigerant adjustment method below, which is not limited here.

[0052] When the air conditioner outdoor unit is configured 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 has a master and a slave, and each indoor unit is turned on and turned off at the same time, and this indoor unit combination form is referred to as a TWINS combination. Similarly, when the air conditioner outdoor unit is configured 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 has a master and a slave, and each indoor unit is turned on and turned off at the same time, and this indoor unit combination form is referred to as a TRIPLES combination. By analogy, when the air conditioner outdoor unit is configured 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 has a master and a slave, and each indoor unit is turned on and turned off at the same time, and this indoor unit combination form can also be defined respectively, which will not be repeated here.

[0053] Each indoor unit being the same means that the parameter values of each indoor unit on the same indoor unit attribute are the same. The description of the indoor unit attribute and the parameter values of the indoor unit attribute will be given below, which will not be repeated here.

[0054] Each indoor unit being turned on and turned off at the same time means that each indoor unit is controlled to be turned on at the same time, and each indoor unit is controlled to be turned off at the same time. For example, using one air conditioner remote controller, all indoor units can be turned on at one time, and all indoor units can be turned off at one time. In addition, since each indoor unit has a master and a slave, by controlling the master indoor unit to be turned on or turned off, each slave indoor unit is also turned on or turned off together with the master indoor unit.

[0055] It should be noted that the application scenarios of the above each same indoor unit being turned on and turned off at the same time can be that in the same area with a large indoor space, for example, a large conference room, if an air conditioner outdoor unit is configured with only one air conditioner indoor unit, only partial area cooling can be achieved during cooling, resulting in uneven cooling. If one air conditioner indoor unit is configured with multiple air conditioner indoor units, uniform cooling can be achieved by multiple air conditioner indoor units, and the control mode of turning on and turning off at the same time is very convenient, and the user experience is better.

[0056] It should be understood that the above multiple indoor unit combination form is only a preferred combination form of the embodiments of the present application, and in other embodiments, each indoor unit can also be an indoor unit that is not the same and / or is not turned on and turned off at the same time. For example, the air conditioner outdoor unit is configured with two air conditioner indoor units, one of which has a capacity segment of 1 / 3 of the air conditioner outdoor unit, and the other of which has a capacity segment of 2 / 3 of the air conditioner indoor unit. The specific configuration can be made according to the actual application requirements, which is not limited here.

[0057] Referring to Figure 2 , a flowchart of a refrigerant adjusting method of an air conditioning system in the embodiments of the present application is shown.

[0058] As Figure 2As shown, according to the first aspect of the embodiments of the present application, a refrigerant adjustment method of an air conditioning system is provided, the air conditioning system comprises at least one indoor unit, the method is mainly applied to the debugging stage when the air conditioning outdoor unit and the air conditioning indoor unit are configured, and is used for determining the refrigerant adjustment ratio of the air conditioning system. It can be understood that the method can also be applied to the actual running stage of the air conditioning system, and the system is made to run in a better state by determining the adjustment ratio of the system refrigerant.

[0059] Specifically, the refrigerant adjustment method of the air conditioning system comprises but is not limited to being realized by steps S101-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 affecting the working effect of the air conditioning system.

[0061] It should be noted that the indoor unit attribute refers to an attribute affecting the working effect of the air conditioning system, for example, an attribute affecting the refrigeration and heating effect of the air conditioning system. Preferably, the indoor unit attribute in the embodiments of the present application comprises but is not limited to the indoor unit heat exchanger area, the indoor unit air volume, the pipe length connecting the indoor unit and the outdoor unit, the installation height of the indoor unit, etc. It can be understood that other indoor unit attributes 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 described here.

[0062] Among them, the indoor unit heat exchanger area and the indoor unit air volume are two main attributes affecting the working effect of the air conditioning system. For example: if two or more indoor units are configured, if the sum of the heat exchanger areas of the indoor units is much larger than the heat exchanger area of the reference indoor unit, then when heating at low temperature, the liquid refrigerant of the indoor unit as the condenser is less, and the pressure will be particularly low, resulting in poor heating effect; on the contrary, if the sum of the heat exchanger areas of the indoor units is much smaller than the heat exchanger area of the reference indoor unit, then when cooling at high temperature, the liquid refrigerant of the indoor unit as the evaporator is more, and the pressure will be too large, resulting in too much cooling. Similarly, if the sum of the air volumes of the indoor units is much larger than the air volume of the reference indoor unit, then when heating at low temperature, the air volume of the indoor unit is small, resulting in poor heating effect; on the contrary, if the sum of the air volumes of the indoor units is much smaller than the air volume of the reference indoor unit, then when cooling at high temperature, the air volume of the indoor unit is large, resulting in too much cooling.

[0063] It can be understood that attributes such as the pipe length connecting the indoor unit and the outdoor unit, the installation height of the indoor unit, etc. have less effect on the working effect of the system compared with the indoor unit heat exchanger area and the indoor unit air volume. Therefore, in order to simplify the calculation and improve the refrigerant adjustment efficiency, the pipe length connecting the indoor unit and the outdoor unit, the installation height of the indoor unit, etc. can not be considered. If the accuracy of the refrigerant adjustment is to be improved, the pipe length connecting the indoor unit and the outdoor unit, the installation height of the indoor unit, etc. can be considered. The specific selection can be made according to the actual application requirements, which is not limited here.

[0064] For each indoor unit attribute, obtaining the parameter value sum of the at least one indoor unit on the indoor unit attribute means that, for each indoor unit attribute, the parameter value of each indoor unit on the indoor unit attribute is added to obtain the parameter value sum. For example, if two indoor units are configured, the parameter value sum of the heat exchanger area of the two indoor units is S1+S2. If two identical indoor units are configured, the parameter value sum of the heat exchanger area is 2S1. For example, if three indoor units are configured, the parameter value sum of the air volume of the three indoor units is F1+F2+F3. If three identical indoor units are configured, the parameter value sum of the air volume of the three indoor units is 3F1.

[0065] In some embodiments, each indoor unit has preset parameter values of indoor unit attributes when leaving the factory, and the parameter values of the indoor unit attributes of the reference indoor unit are set in a terminal device, for example, in an air conditioner outdoor unit. Then, the indoor units configured by the air conditioner outdoor unit are detected and the parameter values of the indoor unit attributes are obtained. Of course, it can be understood that the terminal device can also be the air conditioner indoor unit itself, and can also be a test terminal independent of the air conditioner outdoor unit and the air conditioner indoor unit, which is not limited here.

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

[0067] If the number of indoor units of the air conditioning system is greater than or equal to two, for each indoor unit attribute, the parameter value sum 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 of the air conditioning system is one, it can be defaulted that the target ratio of the indoor unit attributes of the one indoor unit and the reference indoor unit is the ideal value, for example, the target ratio of the heat exchanger area and the target ratio of the indoor air volume are both 100%. At this time, step S101 is not needed to be executed, and no prompt is needed. The air conditioning system is normally started and operated. When the air conditioner outdoor unit detects that the number of indoor units of the air conditioning system is two, for example, the two indoor units are TWINS combination, step S101 is entered. When the air conditioner outdoor unit detects that the number of indoor units of the air conditioning system is three, for example, the three indoor units are TRIPLES combination, step S101 is executed. When the air conditioner outdoor unit detects that the number of indoor units of the air conditioning system is more than three, step S101 is also executed. The same applies to this, which is not repeated here.

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

[0070] The corresponding internal unit attribute is preferably the corresponding internal unit attribute of the reference internal unit, and the reference parameter value of the corresponding internal unit attribute is preferably the attribute parameter value of the reference internal unit. For example, the parameter value of the heat exchanger area of the reference internal unit is S, and the parameter value of the air volume of the reference internal unit is F.

[0071] The target ratio between each parameter value sum and the reference parameter value of the corresponding internal unit attribute can be the target ratio between the parameter value sum S1+S2+...+Sn of the heat exchanger area of each internal unit and the reference parameter value S of the heat exchanger area of the reference internal unit.

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

[0073] In some embodiments, the value range of the target ratio is [0.1, 1.9], and then, in the debugging stage of the air conditioner outdoor unit and air conditioner indoor unit configuration, the internal unit combination with the target ratio of the parameter value sum of the internal unit attribute in the value range is preferably selected to avoid too large difference between the internal and external units, and increase the difficulty of refrigerant adjustment.

[0074] In some embodiments, based on the foregoing scheme, after step S102, the method further comprises:

[0075] If the target ratio corresponding to each internal unit attribute is outside the preset ratio range, the target refrigerant adjustment ratio of the air conditioning system is determined according to the target ratio corresponding to each internal unit attribute.

[0076] In some embodiments, the preset ratio range can be [0.9, 1.1], and 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., which can be set according to the adjustment accuracy, and is not limited here.

[0077] For example, considering the heat exchanger area and air volume as two internal unit attributes, the preset ratio range is [0.9, 1.1], if the target ratio corresponding to the heat exchanger area of each internal unit is 0.8, and the target ratio corresponding to the air volume of each internal unit is 1.3, it is indicated that the target ratio corresponding to each internal unit attribute is outside the preset ratio range, and the target refrigerant adjustment ratio of the air conditioning system is determined according to the target ratio 0.8 and 1.3.

[0078] It should be understood that, based on the foregoing disclosure, if at least one target ratio corresponding to an internal unit attribute is within the preset ratio range, the target refrigerant adjustment ratio of the air conditioning system does not need to be determined.

[0079] For example, in the air conditioning system debugging stage, considering the two indoor unit properties of heat exchanger area and air volume, the preset ratio range is [0.9, 1.1], when the outdoor unit detects two same indoor units, that is, TWINS combination, the system automatically calculates the target ratio 2S1 / S of the parameter value sum of the heat exchanger area of the TWINS combination to the heat exchanger area parameter value of the reference indoor unit, and calculates the target ratio 2F1 / F of the parameter value sum of the air volume of the TWINS combination to the air volume parameter value of the reference indoor unit. 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 has no prompt, and the system normally starts running after debugging is completed; if both of the calculated target ratios 2S1 / S and 2F1 / F are outside the preset ratio range [0.9, 1.1], the system cannot directly start running, and the target refrigerant adjustment ratio of the air conditioning system needs to be determined.

[0080] For example, in the air conditioning system debugging stage, considering the two indoor unit properties of heat exchanger area and air volume, the preset ratio range is [0.9, 1.1], when the outdoor unit detects three same indoor units, that is, TRIPLES combination, the system automatically calculates the target ratio 3S1 / S of the parameter value sum of the heat exchanger area of the TRIPLES combination to the heat exchanger area parameter value of the reference indoor unit, and calculates the target ratio 3F1 / F of the parameter value sum of the air volume of the TRIPLES combination to the air volume parameter value of the reference indoor unit. 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 has no prompt, and the system normally starts running after debugging is completed; if both of the calculated target ratios 3S1 / S and 3F1 / F are outside the preset ratio range [0.9, 1.1], the system cannot directly start running, and the target refrigerant adjustment ratio of the air conditioning system needs to be determined.

[0081] In some embodiments, the target refrigerant adjustment ratio refers to the ratio of the refrigerant adjustment amount to the reference refrigerant amount, and the reference refrigerant amount refers to the refrigerant amount configured in the air conditioning outdoor unit, which is just enough to supply the reference indoor unit to run in the best state. The target refrigerant adjustment ratio can be a ratio increased on the basis of the reference refrigerant amount, or a ratio reduced on the basis of 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 foregoing scheme, after step S102, the method further comprises:

[0084] If the target ratios corresponding to the properties of the indoor units greater than or equal to the 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 indoor units.

[0085] For example, considering the heat exchanger area and the air volume of the indoor unit, if the target ratio corresponding to one of the indoor unit attributes is greater than or equal to a target ratio out of the preset ratio range, then no matter whether the target ratio corresponding to the heat exchanger area is out of the preset range or the target ratio corresponding to the air volume is out of the preset range, the target refrigerant adjustment ratio of the air conditioning system needs to be determined; if the target ratios corresponding to two of the indoor unit attributes are greater than or equal to a target ratio out of the preset ratio range, then only if the target ratios corresponding to the heat exchanger area and the air volume are both out of the preset ratio range, the target refrigerant adjustment ratio of the air conditioning system needs to be determined.

[0086] In some embodiments of the present application, based on the foregoing scheme, after step S102, the method further comprises:

[0087] If the target ratio corresponding to the target indoor unit attribute is out of the preset ratio range, then the target refrigerant adjustment ratio of the air conditioning system is determined according to the target ratios corresponding to the indoor unit attributes.

[0088] For example, considering the heat exchanger area and the air volume of the indoor unit, the heat exchanger area is set as the target indoor unit attribute, then only if the target ratio corresponding to the heat exchanger area is out of the preset ratio range, the target refrigerant adjustment ratio of the air conditioning system needs to be determined, and whether the target ratio corresponding to the air volume is out of the preset ratio range is not concerned. Of course, it can be understood that the heat exchanger area and the air volume can both be set as the target indoor unit attribute, which is not limited herein.

[0089] Step S103. The target refrigerant adjustment ratio of the air conditioning system is determined according to the target ratios corresponding to the indoor unit attributes.

[0090] In some embodiments, when the target ratios corresponding to the indoor unit attributes are calculated by the terminal device, a prompt information of needing to adjust the refrigerant is displayed on the terminal device, and if there are multiple target ratios, the target ratios are displayed alternately on the terminal device, for example, a prompt information of needing to adjust the refrigerant is displayed on the air conditioning 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, the target refrigerant adjustment ratio of the air conditioning system is determined according to the target ratios corresponding to the indoor unit attributes, comprising:

[0092] Step S1031A. A preset mapping relationship table is obtained, and the preset mapping relationship table records the corresponding relationship between the refrigerant adjustment ratio and the ratios corresponding to the indoor unit attributes;

[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 corresponding relationship between the specific ratio and the refrigerant adjustment ratio can be obtained by looking up the table, which will not be described here.

[0094] Table 1: Pre-set mapping relationship table

[0095]

[0096] In some embodiments, the ratio corresponding to each indoor unit attribute is not limited to the case shown in the pre-set mapping relationship in Table 1, i.e., the ratio is not limited to a multiple of 0.1.

[0097] Step S1032A. Looking up the target refrigerant adjustment ratio matching the target ratio corresponding to each indoor unit attribute in the pre-set mapping relationship table.

[0098] In some embodiments of the present application, based on the foregoing scheme, the refrigerant adjustment ratio of the air conditioning system is determined according to the target ratio corresponding to each indoor unit attribute, comprising:

[0099] Step S1031B. Obtaining a pre-constructed mapping relationship function, which is used to represent the functional relationship between the refrigerant adjustment ratio and the ratio corresponding to each indoor unit attribute;

[0100] The mapping relationship function refers to a mapping relationship function constructed by taking the ratio corresponding to each indoor unit attribute as the independent variable and the refrigerant adjustment ratio of the system as the dependent variable. For example, the mapping relationship function can be f(x, y), where x and y can be the ratio corresponding to each indoor unit attribute. When the ratio corresponding to each indoor unit attribute is determined, the refrigerant adjustment ratio of the system can be calculated according to the mapping relationship function.

[0101] Step S1032B. Calculating the target refrigerant adjustment ratio according to the target ratio corresponding to each indoor unit attribute through the mapping relationship function.

[0102] It can be understood that the advantage 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 foregoing scheme, the refrigerant adjustment ratio is positively related to the ratio corresponding to each indoor unit attribute.

[0104] In some embodiments, the positive correlation of the refrigerant adjustment ratio with the ratio corresponding to each indoor unit attribute means that the larger the ratio corresponding to each indoor unit attribute, the larger the refrigerant adjustment ratio, and vice versa. 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 foregoing scheme, after determining the target refrigerant adjustment ratio of the air conditioning system, the method further comprises:

[0106] Adjusting the refrigerant amount of the outdoor unit of the air conditioning system according to the target refrigerant adjustment ratio of the air conditioning system.

[0107] In some embodiments, the reference refrigerant amount is stored in the air conditioning outdoor unit, and after the target refrigerant adjustment ratio is determined, the adjustment amount of the system refrigerant can be further determined, so as to adjust the refrigerant amount of the system according to the adjustment amount.

[0108] In some embodiments, if the target refrigerant adjustment ratio of the air conditioning system is to reduce the refrigerant amount configured to the air conditioning outdoor unit based on the reference refrigerant amount, the refrigerant amount supplied to the outdoor unit can be directly reduced based on the reference refrigerant amount, for example, if the target refrigerant adjustment ratio is 0.8, 20% of the refrigerant amount based on the reference refrigerant amount needs to be reduced; if the target refrigerant adjustment ratio of the air conditioning system is to increase the refrigerant amount configured to the air conditioning outdoor unit based on the reference refrigerant amount, for example, if the target refrigerant adjustment ratio is 1.2, 20% of the refrigerant amount based on the reference refrigerant amount needs to be increased.

[0109] In the present application, one way to adjust the refrigerant amount of the outdoor unit of the air conditioning system can be to increase the refrigerant amount of the target adjustment ratio from the outside to the outdoor unit, and another way can be to set a standby refrigerant storage area in the outdoor unit, which is different from the reference refrigerant storage area. By setting a control valve, such as a solenoid valve, in the standby refrigerant storage area, the valve opening degree is controlled so as to increase the refrigerant amount to the outdoor unit according to the target refrigerant adjustment ratio.

[0110] In some embodiments, if the indoor units are different indoor units, the refrigerant amount supplied to each indoor unit can be controlled by setting a shunt valve or the like when adjusting the system refrigerant amount.

[0111] Based on the above disclosure, for each indoor unit attribute affecting the working effect of the air conditioning system, at least one parameter value sum of the indoor unit on the indoor unit attribute is obtained; then, a target ratio between each parameter value sum and a reference parameter value of the corresponding indoor unit attribute is calculated, 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, a target refrigerant adjustment ratio of the air conditioning system is determined according to the target ratio, so as to adjust the system refrigerant amount in proportion, eliminate the influence of the difference of the indoor unit attribute parameter value on the system running state, and make the system run in a better state.

[0112] The device embodiments of the present application are introduced below, which can be used to execute the methods in the above embodiments of the present application. For details not disclosed in the device embodiments of the present application, please refer to the above method embodiments of the present application.

[0113] Referring to Figure 3 , a structure schematic diagram of a refrigerant adjustment device of an air conditioning system according to an embodiment of the present application is shown.

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

[0115] A parameter acquisition module 201 is configured to obtain, for each indoor unit attribute, a parameter value sum 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 is configured to calculate a target ratio between each parameter value sum and a reference parameter value of the corresponding indoor unit attribute.

[0117] A ratio determination module 203 is configured to determine a target refrigerant adjustment ratio of the air conditioning system according to the target ratio corresponding to each indoor unit attribute.

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

[0119] If the number of indoor units of the air conditioning system is greater than or equal to two, for each indoor unit attribute, the parameter value sum 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 each parameter value sum and the reference parameter value of the corresponding indoor unit attribute, the ratio determination module is further configured to:

[0121] If the target ratio corresponding to each indoor unit attribute is outside the preset ratio range, the target refrigerant adjustment ratio of the air conditioning system is determined according to the target ratio corresponding to each indoor unit attribute.

[0122] In some embodiments of the present application, after the target ratio between the sum of each parameter value and the reference parameter value of the corresponding indoor unit attribute is calculated, the ratio determination module is further configured to:

[0123] If the target ratio corresponding to more than or equal to a preset number of indoor unit attributes is outside the preset ratio range, the target refrigerant adjustment ratio of the air conditioning system is determined according to the target ratio corresponding to each indoor unit attribute.

[0124] In some embodiments of the present application, after the target ratio between the sum of each parameter value and the reference parameter value of the corresponding indoor unit attribute is calculated, the ratio determination module is further configured to:

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

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

[0127] Obtain 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] In the preset mapping relationship table, find a target refrigerant adjustment ratio that matches the target ratio corresponding to each indoor unit attribute.

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

[0130] Obtain a pre-constructed mapping relationship function, wherein the mapping relationship function is used to represent the functional relationship between the refrigerant adjustment ratio and the ratio corresponding to each indoor unit attribute;

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

[0132] In some embodiments of the present application, the refrigerant adjustment ratio and the ratio corresponding to each indoor unit attribute are positively correlated.

[0133] In some embodiments of the present application, after the target refrigerant adjustment ratio of the air conditioning system is determined, the device further comprises:

[0134] A refrigerant adjustment module is configured to adjust the amount of refrigerant 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 unit attribute at least includes internal unit

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

[0137] In some embodiments of the present application, the air conditioning system includes at least one internal unit with the same opening and closing.

[0138] In some embodiments of the present application, the parameters of each internal unit on the same internal unit attribute 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 of the first aspect.

[0140] Referring to Figure 4 , a structural schematic diagram of an air conditioning device is shown.

[0141] It should be understood that Figure 4 The air conditioning device 400 shown is only an example and should not limit the function and use range of the embodiments of the present application.

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

[0143] The storage unit stores program code that can be executed by the processing unit 410, so that the processing unit 410 executes the steps described in the above "embodiment method" section of the present specification according to various exemplary embodiments of the present application.

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

[0145] The storage unit 420 can also include program / utilities 424 with a set of (at least one) program modules 425, such as an operating system, one or more application programs, other program modules, and program data, each of which or some combination of which can include the implementation of a network environment.

[0146] Bus 430 can be one or more of several types of bus structure that can further interconnect to various devices from various bus masters and include a storage bus or bus for passing bus transaction requests, a peripheral bus or other peripheral buses, a graphics bus, a processor or local bus, or a local memory bus, using any of a variety of bus architectures.

[0147] Air conditioning apparatus 400 can also communicate with one or more external devices 500 such as a keyboard or a pointing device, a Bluetooth device, etc.; other devices that enable a user to interact with air conditioning apparatus 400; and / or any devices (e.g., a router, a modem, a peer device or other computing device) that enable air conditioning apparatus 400 to communicate with one or more other computing devices. Such communication can occur via Input / Output (I / O) interface 450. Still yet, air conditioning apparatus 400 can communicate with one or more networks, such as a local area network (LAN), a general wide area network (WAN), and / or the Internet, through network adapter 460. As depicted, network adapter 460 communicates with the other components of air conditioning apparatus 400 via bus 430. It should be appreciated that although not shown, other hardware and / or software modules could be used in conjunction with air conditioning apparatus 400. Such as, but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data archival storage systems, etc. Figure 4

[0148] The specific embodiments of the present application have been shown and described in order to illustrate the application. It should be understood that various modifications can be made to the embodiments of the present application. Such modifications can include, but are not limited to, substituting equivalents for any aspect(s) of the application after the nature of the application has been determined, and changes in the procedure of the application as long as such modifications come within the scope of the application. Accordingly, the proper scope of the application is to be determined only by reference to the appended claims.​

Claims

1. A refrigerant adjustment method of an air conditioning system, characterized by, The air conditioning system comprises at least one indoor unit, and the method comprises: For each indoor unit attribute, obtaining a parameter value sum of the at least one indoor unit on the indoor unit attribute, wherein the indoor unit attribute is an attribute affecting 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; According to the target ratio corresponding to each indoor unit attribute, determining a target refrigerant adjustment ratio of the air conditioning system; After determining the target refrigerant adjustment ratio of the air conditioning system, the method further comprises: Adjusting the refrigerant amount of the outdoor unit in the air conditioning system according to the target refrigerant adjustment ratio of the air conditioning system.

2. The method of claim 1, wherein, The method further comprises: If the number of indoor units of the air conditioning system is greater than or equal to two, for each indoor unit attribute, obtaining a parameter value sum of the at least one indoor unit on the indoor unit attribute.

3. The method of claim 1, wherein, After calculating the target ratio between each parameter value sum and the reference parameter value of the corresponding indoor unit attribute, the method further comprises: If the target ratio corresponding to each indoor unit attribute is outside the preset ratio range, then according to the target ratio corresponding to each indoor unit attribute, determining the target refrigerant adjustment ratio of the air conditioning system.

4. The method of claim 1, wherein, After calculating the target ratio between each parameter value sum and the reference parameter value of the corresponding indoor unit attribute, the method further comprises: If the target ratio corresponding to more than or equal to a preset number of indoor unit attributes is outside the preset ratio range, then according to the target ratio corresponding to each indoor unit attribute, determining the target refrigerant adjustment ratio of the air conditioning system.

5. The method of claim 1, wherein, After calculating the target ratio between each parameter value sum and the reference parameter value of the corresponding indoor unit attribute, the method further comprises: If the target ratio corresponding to the target indoor unit attribute is outside the preset ratio range, then according to the target ratio corresponding to each indoor unit attribute, determining the target refrigerant adjustment ratio of the air conditioning system.

6. The method of claim 1, wherein, The determination of the refrigerant adjustment ratio of the air conditioning system according to the target ratio corresponding to each indoor unit attribute comprises: 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; In the preset mapping relationship table, finding a target refrigerant adjustment ratio matching the target ratio corresponding to each indoor unit attribute.

7. The method of claim 1, wherein, The determination of the refrigerant adjustment ratio of the air conditioning system according to the target ratio corresponding to each indoor unit attribute comprises: Obtaining a pre-constructed mapping relationship function, wherein the mapping relationship function is used to represent the functional relationship between the refrigerant adjustment ratio and the ratio corresponding to each indoor unit attribute; According to the target ratio corresponding to each indoor unit attribute, calculating the target refrigerant adjustment ratio through the mapping relationship function.

8. The method according to claim 6 or 7, characterized in that, The refrigerant adjustment ratio and the ratio corresponding to each indoor unit attribute are positively correlated.

9. The method of claim 1, wherein, The indoor unit attribute at least comprises indoor unit air volume and / or indoor unit heat exchanger area.

10. The method of claim 1, wherein, The air conditioning system comprises at least one indoor unit with the same opening and closing.

11. The method of claim 1, wherein, The parameter values of each indoor unit on the same indoor unit attribute are the same.

12. A refrigerant adjusting device of an air conditioning system, characterized by comprising: The air conditioning system comprises at least one indoor unit, and the device comprises: A parameter obtaining module is configured to obtain, for each internal unit attribute, a parameter value sum of the at least one internal unit on the internal unit attribute, wherein the internal unit attribute affects the working effect of the air conditioning system; A ratio calculating module is configured to calculate a target ratio between each parameter value sum and a reference parameter value of the corresponding internal unit attribute; A proportion determining module is configured to determine a target refrigerant adjustment proportion of the air conditioning system according to the target ratio of each internal unit attribute; After determining the target refrigerant adjustment proportion of the air conditioning system, the method further comprises: Adjusting the refrigerant amount of the external unit in the air conditioning system according to the target refrigerant adjustment proportion of the air conditioning system.

13. An air conditioning apparatus characterized by comprising: The device comprises one or more processors and one or more memories, wherein the one or more memories store at least one program code, 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 1-11.

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