Air conditioner compressor control method and device, air conditioner equipment and storage medium

Abstract

The application provides an air conditioner compressor control method and device, an air conditioner equipment and a storage medium. The air conditioner equipment comprises a protection main circuit and a protection auxiliary circuit connected in parallel with the protection main circuit. The method comprises the following steps: acquiring a detection temperature corresponding to an air conditioner target mode, a compressor discharge parameter and a compressor current, wherein the detection temperature comprises an indoor temperature and / or a coil temperature; controlling the path switching of the protection main circuit and the protection auxiliary circuit according to the detection temperature and the compressor current, wherein a preset discharge threshold value corresponding to the protection auxiliary circuit is smaller than a preset discharge threshold value corresponding to the protection main circuit; and controlling the compressor protection circuit to be disconnected according to the compressor discharge parameter and a preset discharge threshold value corresponding to the compressor protection circuit in the path state. Different levels of compressor fluorine deficiency protection are realized, and the precision of the compressor fluorine deficiency protection is improved.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, specifically to an air conditioning compressor control method, device, air conditioning equipment, and storage medium. Background Technology

[0002] Air conditioners rely on the refrigerant circulation in the air conditioning system for heat exchange to regulate the detected temperature. The refrigerant mainly circulates through coils and pipes. During the connection and installation of the pipes, the amount of refrigerant in the system may be reduced due to the use of the unit's own refrigerant for venting. Improper installation techniques may also cause leaks at pipe connections, further reducing the amount of refrigerant in the system. These issues can lead to refrigerant shortages in the air conditioning system, affecting the air conditioner's performance.

[0003] In related technologies, the compressor has a built-in protector that mainly protects against refrigerant shortage by controlling temperature. However, the protection accuracy of the compressor protector is not high. Summary of the Invention

[0004] This application provides an air conditioning compressor control method, device, air conditioning equipment, and storage medium, which solves the problem of low protection accuracy of the above-mentioned compressor protector based on temperature, and improves the compressor protection accuracy.

[0005] In a first aspect, this application provides an air conditioning compressor control method, the control method being applied to an air conditioning device, the air conditioning device including a compressor protection circuit for compressor refrigerant shortage protection, the compressor protection circuit including a main protection circuit and a secondary protection circuit connected in parallel with the main protection circuit, the method comprising:

[0006] The detection temperature, compressor discharge parameters, and compressor current corresponding to the target mode of the air conditioner are obtained, wherein the detection temperature includes the indoor temperature and / or the coil temperature.

[0007] Based on the detected temperature and the compressor current, the path switching of the protection main circuit and the protection sub-circuit is controlled, wherein the preset exhaust threshold corresponding to the protection sub-circuit is less than the preset exhaust threshold corresponding to the protection main circuit;

[0008] Based on the compressor exhaust parameters and the preset exhaust threshold corresponding to the compressor protection circuit of the circuit, the compressor protection circuit is controlled to disconnect.

[0009] In one possible embodiment of this application, controlling the switching of the protection main circuit and the protection secondary circuit based on the detected temperature and the compressor current includes:

[0010] If the rate of change of the detected temperature is less than a preset temperature change threshold, then the compressor current is compared with the preset current threshold corresponding to the protection main circuit.

[0011] If the compressor current is less than the preset current threshold corresponding to the main protection circuit, the main protection circuit is controlled to be disconnected, and the secondary protection circuit is connected.

[0012] If the compressor current is greater than or equal to the preset current threshold corresponding to the main protection circuit, the main protection circuit is controlled to continue, and the secondary protection circuit is disconnected.

[0013] In one possible implementation of this application, the detected temperature includes the room temperature and the coil temperature;

[0014] If the rate of change of the detected temperature is less than a preset temperature change threshold, then comparing the compressor current with a preset current threshold corresponding to the protection main circuit includes:

[0015] Calculate the rate of change of indoor temperature corresponding to the indoor temperature within a preset time period, and the rate of change of coil temperature corresponding to the coil temperature.

[0016] If the rate of change of indoor temperature is less than a preset indoor temperature threshold and the rate of change of coil temperature is less than a preset coil temperature threshold, then the compressor current is compared with the preset current threshold corresponding to the protection main circuit.

[0017] In one possible implementation of this application, controlling the compressor protection circuit to disconnect based on a preset discharge threshold corresponding to the compressor protection circuit and the circuit status includes:

[0018] The compressor exhaust parameters and the preset exhaust threshold corresponding to the compressor protection circuit of the passage status are compared;

[0019] If the compressor discharge parameter is greater than or equal to the preset discharge threshold corresponding to the compressor protection circuit, the compressor protection circuit is controlled to disconnect, thereby stopping the compressor.

[0020] In one possible implementation of this application, before obtaining the detection temperature, compressor discharge parameters, and compressor current corresponding to the air conditioning target mode, the method further includes:

[0021] Obtain the compressor's downtime;

[0022] If the shutdown duration is longer than the preset shutdown duration, then the steps of obtaining the detection temperature, compressor exhaust parameters and compressor current corresponding to the target mode of the air conditioner are executed.

[0023] In one possible implementation of this application, after controlling the compressor protection circuit to disconnect based on the preset discharge threshold corresponding to the compressor protection circuit according to the compressor discharge parameters and the circuit status, the method further includes:

[0024] When the compressor protection circuit is disconnected, the number of times the compressor protection circuit is disconnected is counted for a preset time period;

[0025] If the number of circuit breaks exceeds the preset circuit break threshold, the compressor will be shut down and the information that the compressor is low on refrigerant will be sent to the display terminal corresponding to the compressor.

[0026] Secondly, this application provides an air conditioner compressor control device, applied to an air conditioning unit, the air conditioning unit including a compressor protection circuit for compressor refrigerant shortage protection, the compressor protection circuit including a main protection circuit and a secondary protection circuit connected in parallel with the main protection circuit, the air conditioner compressor control device including:

[0027] Acquisition module: used to acquire the detection temperature, compressor discharge parameters and compressor current corresponding to the target mode of the air conditioner, wherein the detection temperature includes the indoor temperature and / or the coil temperature;

[0028] Switching module: used to control the switching of the protection main circuit and the protection sub-circuit according to the detected temperature and the compressor current, wherein the preset exhaust threshold corresponding to the protection sub-circuit is less than the preset exhaust threshold corresponding to the protection main circuit;

[0029] Control module: Used to control the compressor protection circuit to disconnect based on the preset exhaust threshold corresponding to the compressor protection circuit and the circuit status of the compressor exhaust parameters and the circuit state.

[0030] Thirdly, this application provides an air conditioning device, the air conditioning device comprising:

[0031] A compressor protection circuit for compressor refrigerant shortage protection includes a main protection circuit and a secondary protection circuit connected in parallel with the main protection circuit, as well as a switching assembly for switching the path of the main protection circuit or the path of the secondary protection circuit.

[0032] In one embodiment of this application, the air conditioning device further includes:

[0033] One or more processors;

[0034] Memory; and

[0035] One or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the processor to implement any one of the air conditioning compressor control methods.

[0036] Fourthly, this application provides a computer-readable storage medium having a computer program stored thereon, the computer program being loaded by a processor to perform the steps in any of the air conditioning compressor control methods described above.

[0037] This application provides an air conditioning compressor control method, apparatus, air conditioning equipment, and storage medium. The air conditioning equipment includes a compressor protection circuit for refrigerant shortage protection. The compressor protection circuit includes a main protection circuit and a secondary protection circuit connected in parallel with the main protection circuit. It acquires the detection temperature, compressor discharge parameters, and compressor current corresponding to the air conditioning target mode. The detection temperature includes the indoor temperature and / or the coil temperature. Based on the detection temperature and the compressor current, it controls the switching of the main protection circuit and the secondary protection circuit, wherein a preset discharge threshold corresponding to the secondary protection circuit is lower than a preset discharge threshold corresponding to the main protection circuit. Based on the compressor discharge parameters and the preset discharge threshold corresponding to the compressor protection circuit in the current circuit state, it controls the compressor protection circuit to disconnect. That is, by setting corresponding current protection main circuits and protection sub-circuits for different detection temperatures and different compressor currents, different preset exhaust thresholds are set for the protection main circuit and protection sub-circuit; and the path switching of the main circuit and protection sub-circuit is controlled according to the compressor current and detection temperature. That is, different protection circuits are selected to protect the compressor from refrigerant shortage according to different detection temperature parameters and different compressor current parameters. Furthermore, the compressed exhaust is compared with the preset exhaust threshold corresponding to the path state, and the compressor protection circuit of the path state is controlled to perform the refrigerant shortage protection action, thereby realizing refrigerant shortage protection of the compressor, realizing different levels of compressor refrigerant shortage protection, and improving the accuracy of compressor refrigerant shortage protection. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 This is a schematic diagram of a scenario for the air conditioning compressor control method provided in an embodiment of this application;

[0040] Figure 2 This is a schematic diagram of one embodiment of the compressor protection circuit in the air conditioning compressor control device provided in this application.

[0041] Figure 3 This is a schematic flowchart of an embodiment of the air conditioning compressor control method provided in this application.

[0042] Figure 4 A schematic flowchart of one implementation scheme for path switching in the air conditioning compressor control method provided in this application;

[0043] Figure 5 A schematic flowchart of one embodiment of the air conditioner compressor control method provided in this application, showing the compressor protection circuit being disconnected.

[0044] Figure 6 A schematic flowchart illustrating another embodiment of the air conditioning compressor control method provided in this application;

[0045] Figure 7 This is a schematic diagram of an embodiment of the air conditioning compressor control device provided in this application.

[0046] Figure 8 This is a schematic diagram of an embodiment of the air conditioning equipment provided in this application. Detailed Implementation

[0047] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0048] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0049] In this application, the term "exemplary" is used to mean "serving as an example, illustration, or description." Any embodiment described as "exemplary" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to make and use the invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the invention can be made without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of the invention with unnecessary detail. Therefore, the invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0050] This application provides an air conditioning compressor control method, device, air conditioning equipment, and computer-readable storage medium, which will be described in detail below.

[0051] The air conditioning compressor control method in this embodiment of the invention is applied to an air conditioning compressor control device. The air conditioning compressor control device is installed in an air conditioning unit. The air conditioning unit is provided with one or more processors, a memory, and one or more application programs. The one or more application programs are stored in the memory and configured to be executed by the processor to implement the air conditioning compressor control method. The air conditioning unit can be a terminal, such as a mobile phone or a tablet computer. The air conditioning unit can also be a server or a service cluster composed of multiple servers.

[0052] like Figure 1 As shown, Figure 1 This is a schematic diagram of a scenario for an air conditioning compressor control method according to an embodiment of this application. The air conditioning compressor control scenario in this embodiment includes an air conditioning device 100 (the air conditioning device 100 integrates an air conditioning compressor control device), and the air conditioning device 100 runs a computer-readable storage medium corresponding to the air conditioning compressor control to execute the steps of the air conditioning compressor control method.

[0053] Understandable, Figure 1 The air conditioning equipment in the scenario of the air conditioning compressor control method shown, or the devices included in the air conditioning equipment, do not constitute a limitation on the embodiments of the present invention. That is, the number or type of equipment included in the scenario of the air conditioning compressor control method, or the number or type of devices included in each equipment, do not affect the overall implementation of the technical solution in the embodiments of the present invention, and can all be considered as equivalent substitutions or derivatives of the technical solutions claimed in the embodiments of the present invention.

[0054] In this embodiment of the invention, the air conditioning device 100 is mainly used for: acquiring the detection temperature, compressor exhaust parameters, and compressor current corresponding to the target mode of the air conditioner, wherein the detection temperature includes the indoor temperature and / or the coil temperature; controlling the switching of the protection main circuit and the protection sub-circuit according to the detection temperature and the compressor current, wherein the preset exhaust threshold corresponding to the protection sub-circuit is less than the preset exhaust threshold corresponding to the protection main circuit; and controlling the compressor protection circuit to disconnect according to the compressor exhaust parameters and the preset exhaust threshold corresponding to the compressor protection circuit in the circuit state.

[0055] In this embodiment of the invention, the air conditioning device 100 can be an independent air conditioning device, or an air conditioning device network or cluster composed of air conditioning devices. For example, the air conditioning device 100 described in this embodiment of the invention includes, but is not limited to, a computer, a network host, a single network air conditioning device, a set of multiple network air conditioning devices, or a cloud air conditioning device composed of multiple air conditioning devices. Among them, the cloud air conditioning device is composed of a large number of computers or network air conditioning devices based on cloud computing.

[0056] Those skilled in the art will understand that Figure 1 The application environment shown is merely one application scenario of the solution in this application and does not constitute a limitation on the application scenario of the solution in this application. Other application environments may include those that are more specific to this application. Figure 1 The number of more or fewer air conditioning units shown, or the network connection relationship of the air conditioning units, for example Figure 1 Only one air conditioning device is shown in the diagram. It is understood that the scenario of the air conditioning compressor control method may also include one or more other air conditioning devices, which are not specifically limited here. The air conditioning device 100 may also include a memory for storing data.

[0057] Furthermore, in the scenario of the air conditioning compressor control method of this application, the air conditioning device 100 may be equipped with a display device, or the air conditioning device 100 may not have a display device but may communicate with an external display device 200. The display device 200 is used to output the results of the air conditioning compressor control method executed in the air conditioning device. The air conditioning device 100 can access the background database 300 (the background database may be in the local storage of the air conditioning device, or it may be located in the cloud). The background database 300 stores information related to the air conditioning compressor control, such as the initial image in the background database 300, or pre-set filtering parameters.

[0058] It should be noted that, Figure 1The schematic diagram of the air conditioner compressor control method shown is merely an example. The scenarios of the air conditioner compressor control method described in this embodiment are intended to more clearly illustrate the technical solutions of this embodiment and do not constitute a limitation on the technical solutions provided in this embodiment.

[0059] Based on the scenario described above regarding the air conditioner compressor control method, an embodiment of the air conditioner compressor control method is proposed. This control method is applied to air conditioning equipment. (See attached document.) Figure 2 The air conditioning equipment includes a compressor protection circuit for compressor refrigerant shortage protection. The compressor protection circuit includes a main protection circuit 400 and a secondary protection circuit 500 connected in parallel with the main protection circuit.

[0060] like Figure 3 The diagram shown is a flowchart of an embodiment of the air conditioner compressor control method in this application. The air conditioner compressor control method includes steps S301-S303:

[0061] S301. Obtain the detection temperature, compressor discharge parameters and compressor current corresponding to the target mode of the air conditioner.

[0062] The target mode of the air conditioner is either the air conditioner cooling mode or the air conditioner dehumidification mode; the detection temperature, compressor exhaust parameters and compressor current corresponding to the target mode are, that is, the detection temperature, compressor exhaust parameters and compressor current in the air conditioner cooling mode, or the detection temperature, compressor exhaust parameters and compressor current in the air conditioner initial mode.

[0063] The detected temperature includes indoor temperature and / or coil temperature. That is, the detected temperature can be indoor temperature, coil temperature, or both. It is understood that the detected temperature can be obtained by a temperature detector installed indoors and / or installed on the air conditioning coil. Furthermore, it is understood that the coil temperature includes multiple coil temperatures at different locations of the air conditioning system, that is, multiple temperature detectors for collecting the coil temperature can be set up for different locations of the coil.

[0064] The compressor exhaust parameters can be compressor exhaust pressure, compressor exhaust volume, etc. It is understood that the compressor exhaust parameters can be obtained by a flow detection device installed at the compressor exhaust port.

[0065] The compressor current, i.e. the working current of the compressor in the target mode, can be obtained by a current detection device installed in the compressor working circuit.

[0066] Specifically, in the embodiments of this application, the air conditioning compressor control method is applied to an air conditioning device. When the air conditioning device detects that the compressor is working in the target air conditioning mode, it collects the detection temperature, compressor exhaust parameters, and compressor current corresponding to the target air conditioning mode according to the preset temperature collection frequency, exhaust parameter collection frequency, and compressor current collection frequency. It can be understood that in some other embodiments of this application, the air conditioning device may also detect the detection temperature, compressor exhaust parameters, and compressor current when it detects that the compressor is working in the target air conditioning mode. When the temperature difference between the detected temperature and the historical detected temperature reaches a preset temperature difference, the detected temperature is collected. Similarly, the collection method of compressor exhaust parameters and compressor current is the same as that of the detection temperature collection scheme.

[0067] S302. Based on the detected temperature and the compressor current, control the switching of the protection main circuit and the protection secondary circuit.

[0068] The switching of the protection main circuit and the protection sub-circuit means controlling the protection main circuit to switch to the protection sub-circuit, or controlling the protection sub-circuit to switch to the protection main circuit. It can be understood that, in the embodiments of this application, when one of the protection main circuit and the protection sub-circuit is in a closed state, the other circuit is in an open state.

[0069] Specifically, in the embodiments of this application, the protection main circuit and the protection secondary circuit include path switching controlled by the detected temperature and the compressor current. It is understood that the opening and closing of the protection main circuit and the protection secondary circuit can be controlled by a circuit switch, which is electrically connected to the air conditioning equipment. Specifically, it includes:

[0070] One feasible implementation scheme: The detected temperature is the indoor temperature. When the rate of change of the indoor temperature is within a preset rate of change range, the current compressor current is obtained. If the compressor current is less than a preset current threshold, the main protection circuit is controlled to be disconnected and the secondary protection circuit is opened. Otherwise, the main protection circuit is controlled to be opened and the secondary protection circuit is disconnected.

[0071] Implementation scheme two: The detected temperature includes indoor temperature and coil temperature. If the temperature change rate of the indoor temperature and the temperature change rate of the coil temperature meet the corresponding temperature change rate threshold, then when the compressor current is less than the preset current threshold, the protection main circuit is controlled to be disconnected and the protection secondary circuit is opened; otherwise, the protection main circuit is controlled to be opened and the protection secondary circuit is disconnected.

[0072] Wherein, the preset exhaust threshold corresponding to the protection sub-circuit is less than the preset exhaust threshold corresponding to the protection main circuit. It can be understood that the preset exhaust threshold is used to compare with the compressor exhaust parameters. The protection main circuit or the protection sub-circuit that controls the circuit state realizes the action of compressor refrigerant shortage protection, that is, controls the protection main circuit or the protection sub-circuit to disconnect.

[0073] S303. Based on the compressor exhaust parameters and the preset exhaust threshold corresponding to the compressor protection circuit of the circuit, control the compressor protection circuit to disconnect.

[0074] Specifically, the air conditioning unit, based on the detected temperature and the compressor current, controls the switching of the protection main circuit and the protection sub-circuit, obtains the compressor discharge parameters, and compares the compressor discharge parameters with the preset discharge threshold of the compressor protection circuit in the closed state. If the compressor discharge parameters are greater than or equal to the preset discharge threshold of the compressor protection circuit in the closed state, the compressor protection circuit in the closed state is disconnected. That is, when the protection main circuit is in the closed state, the compressor discharge parameters are compared with the preset discharge threshold corresponding to the protection main circuit. If the compressor discharge parameters are greater than or equal to the preset discharge threshold, the protection main circuit is disconnected to stop the compressor. When the protection sub-circuit is in the closed state, the compressor discharge parameters are compared with the preset discharge threshold corresponding to the protection sub-circuit. If the compressor discharge parameters are greater than or equal to the preset discharge threshold, the protection sub-circuit is disconnected to stop the compressor.

[0075] It is understandable that when the compressor current decreases, the compressor discharge will decrease, making it difficult to reach the preset discharge threshold corresponding to the main protection circuit, resulting in inadequate protection of the main protection circuit. If the preset protection threshold corresponding to the main protection circuit is lowered, the compressor will frequently stop when the current is sufficient, affecting the compressor's performance.

[0076] Furthermore, based on the above implementation plan, see [link to relevant documentation]. Figure 4 , Figure 4 A schematic flowchart of one implementation scheme of the air conditioning compressor control method provided in this application, including steps S401-S403:

[0077] S401. If the temperature change rate of the detected temperature is less than the preset temperature change threshold, then compare the compressor current with the preset current threshold corresponding to the protection main circuit.

[0078] Specifically, in this embodiment, the detected temperature includes indoor temperature and coil temperature. After acquiring the indoor temperature and coil temperature, the air conditioning equipment calculates the rate of change of the indoor temperature and coil temperature. For example, if the indoor temperature includes T1 and T2 collected sequentially according to a time series, then the difference between T2 and T1 is calculated, which is the rate of change of the indoor temperature at that time. The rate of change of the indoor temperature and the rate of change of the coil temperature are compared with the corresponding preset rate of change. Based on the comparison result, the compressor current is further compared with the preset current threshold corresponding to the protection main circuit. Specifically, the steps include:

[0079] (1) Calculate the rate of change of indoor temperature corresponding to the indoor temperature within the preset time period, and the rate of change of coil temperature corresponding to the coil temperature.

[0080] (2) If the rate of change of indoor temperature is less than the preset indoor temperature threshold and the rate of change of coil temperature is less than the preset coil temperature threshold, then compare the compressor current with the preset current threshold corresponding to the protection main circuit.

[0081] Specifically, in some other embodiments of this application, if the rate of change of indoor temperature is not less than a preset indoor temperature threshold, or the rate of change of coil temperature is not less than a preset coil temperature threshold, then the step of comparing the compressor current with the preset current threshold corresponding to the protection main circuit is not performed. That is, the protection main circuit path of the compressor protection circuit performs protection. Under normal circumstances, the compressor protection circuit is the protection main circuit connected.

[0082] S402. If the compressor current is less than the preset current threshold corresponding to the main protection circuit, the main protection circuit is controlled to be disconnected, and the secondary protection circuit is connected.

[0083] Specifically, after the air conditioning equipment detects that the rate of change of indoor temperature is less than a preset indoor temperature threshold and the rate of change of coil temperature is less than a preset coil temperature threshold, it compares the relationship between the compressor current and the preset compressor current. If the compressor current is less than the preset current threshold corresponding to the protection main circuit, the protection main circuit is controlled to be disconnected and the protection secondary circuit is open. If the compressor current is not less than the preset current threshold corresponding to the protection main circuit, the protection main circuit is controlled to be open and the protection secondary circuit is disconnected.

[0084] S403. If the compressor current is greater than or equal to the preset current threshold corresponding to the protection main circuit, then control the protection main circuit to be open and the protection secondary circuit to be closed.

[0085] Specifically, after the air conditioning equipment detects that the rate of change of the indoor temperature is less than a preset indoor temperature threshold and the rate of change of the coil temperature is less than a preset coil temperature threshold, it compares the relationship between the compressor current and the preset compressor current. If the compressor current is not less than the preset current threshold corresponding to the protection main circuit, it controls the protection main circuit to continue and the protection secondary circuit to disconnect.

[0086] Furthermore, based on the above implementation plan, see [link to relevant documentation]. Figure 5 , Figure 5 A schematic flowchart of one embodiment of the air conditioner compressor control method provided in this application, which includes steps S501-S502, illustrates the compressor protection circuit disconnection.

[0087] S501. Compare the compressor exhaust parameters with the preset exhaust threshold corresponding to the compressor protection circuit in the passage state.

[0088] Specifically, after determining the compressor protection circuit's path status based on the compressor current, the air conditioning unit acquires the compressor discharge parameters and compares them with the preset discharge threshold corresponding to the acquired compressor discharge path status compressor protection circuit. That is, if the compressor protection circuit in the path status is the main protection circuit, the compressor discharge parameters are compared with the preset discharge threshold corresponding to the main protection circuit; if the compressor protection circuit in the path status is the secondary protection circuit, the compressor discharge parameters are compared with the preset discharge threshold corresponding to the secondary protection circuit.

[0089] S502. If the compressor exhaust parameter is greater than or equal to the preset exhaust threshold corresponding to the compressor protection circuit, then control the compressor protection circuit to disconnect so that the compressor stops.

[0090] Furthermore, after comparing the compressor exhaust parameters with the preset exhaust threshold corresponding to the compressor protection circuit in the circuit state, if the compressor exhaust parameters are greater than or equal to the preset exhaust threshold corresponding to the compressor protection circuit, the air conditioning equipment controls the compressor protection circuit to disconnect so that the compressor stops. If the compressor exhaust parameters are less than the preset exhaust threshold corresponding to the compressor protection circuit, the air conditioning equipment controls the compressor protection circuit to open to prevent the compressor from stopping.

[0091] Furthermore, based on the above implementation scheme, this application also provides another embodiment of the air conditioning compressor control method, including:

[0092] (1) Obtain the compressor's downtime;

[0093] (2) If the shutdown duration is longer than the preset shutdown duration, the detection temperature, compressor exhaust parameters and compressor current corresponding to the target mode of the air conditioner are obtained, and the detection temperature includes the indoor temperature and / or the coil temperature.

[0094] (3) Based on the detected temperature and the compressor current, control the switching of the protection main circuit and the protection sub-circuit, wherein the preset exhaust threshold corresponding to the protection sub-circuit is less than the preset exhaust threshold corresponding to the protection main circuit;

[0095] (4) Control the compressor protection circuit to disconnect according to the preset exhaust threshold corresponding to the compressor exhaust parameters and the circuit status.

[0096] The compressor's shutdown duration, i.e., the duration of the compressor's last shutdown, can be understood as follows: after determining and obtaining the compressor's shutdown duration, the shutdown duration is compared with a preset shutdown duration. If the compressor's shutdown duration is longer than the preset statistical duration, the air conditioning equipment performs the steps of obtaining the detection temperature, compressor discharge parameters, and compressor current corresponding to the air conditioning target mode, and controls the compressor to shut down based on the obtained detection temperature, compressor discharge parameters, and compressor current. If the compressor's shutdown duration is too short, it will cause the compressor to start and stop frequently, resulting in compressor wear and shortening the compressor's lifespan.

[0097] Furthermore, based on the above implementation plan, see [link to relevant documentation]. Figure 6 , Figure 6 A schematic flowchart of another embodiment of the air conditioning compressor control method provided in this application, including steps S601-S605:

[0098] S601. Obtain the detection temperature, compressor exhaust parameters and compressor current corresponding to the target mode of the air conditioner, wherein the detection temperature includes the indoor temperature and / or the coil temperature.

[0099] S602. Based on the detected temperature and the compressor current, control the switching of the protection main circuit and the protection secondary circuit.

[0100] The preset exhaust threshold corresponding to the protection sub-circuit is less than the preset exhaust threshold corresponding to the protection main circuit.

[0101] S603. Based on the compressor exhaust parameters and the preset exhaust threshold corresponding to the compressor protection circuit of the circuit, control the compressor protection circuit to disconnect.

[0102] Specifically, the implementation schemes for steps S601-S603 are described in any of the above implementation schemes.

[0103] S604. When the compressor protection circuit is disconnected, count the number of times the compressor protection circuit is disconnected for a preset time period.

[0104] The preset duration may include historical duration, future duration, and present duration, or it may only include historical duration and present duration. For example, when the compressor is powered on, the compressor protection circuit is controlled to disconnect for the first time based on the preset exhaust threshold corresponding to the compressor exhaust parameters and the circuit status. Then, the timing is started, and the number of compressor disconnections is counted as 1.

[0105] Specifically, the air conditioning equipment controls the compressor protection circuit to disconnect based on the compressor exhaust parameters and the preset exhaust threshold corresponding to the compressor protection circuit in the circuit state. When a compressor disconnection is detected in the circuit state, the number of times the compressor disconnects is counted.

[0106] It is understood that in some embodiments of this application, the air conditioning device counts the number of times the compressor stops only after detecting the preset exhaust threshold corresponding to the compressor protection circuit of the compressor exhaust parameters and the circuit status, and controlling the compressor protection circuit to disconnect.

[0107] Specifically, in the implementation scheme of this application, in addition to controlling the compressor protection circuit to disconnect after detecting the preset exhaust threshold corresponding to the compressor exhaust parameters and the circuit status, the air conditioning equipment also counts the number of compressor shutdowns after detecting the preset exhaust threshold. If the temperature change rate of the detected temperature is not less than the preset temperature change threshold, the air conditioning equipment also accumulates the number of compressor counts.

[0108] S605. If the number of circuit breaks exceeds the preset circuit break number threshold, the compressor is controlled to stop and the information of refrigerant shortage in the compressor is fed back to the display terminal corresponding to the compressor.

[0109] The display terminal can be a screen on the air conditioning unit, or a mobile phone, computer, etc., that communicates with the air conditioning unit. Specifically, if the number of circuit breaks in the air conditioning unit within a preset time period exceeds a preset threshold, the compressor will be stopped, and a message indicating a refrigerant shortage will be sent to the display terminal. For example, a text message indicating a refrigerant shortage may be displayed.

[0110] This application provides an air conditioning compressor control method, which includes a compressor protection circuit for refrigerant shortage protection in the air conditioning device. The compressor protection circuit includes a main protection circuit and a secondary protection circuit connected in parallel with the main protection circuit. The method acquires the detection temperature, compressor discharge parameters, and compressor current corresponding to the target air conditioning mode. The detection temperature includes the indoor temperature and / or the coil temperature. Based on the detection temperature and the compressor current, the method controls the switching of the main protection circuit and the secondary protection circuit, wherein a preset discharge threshold corresponding to the secondary protection circuit is lower than a preset discharge threshold corresponding to the main protection circuit. Based on the compressor discharge parameters and the preset discharge threshold corresponding to the compressor protection circuit in the current circuit state, the method controls the compressor protection circuit to disconnect. That is, by setting corresponding current protection main circuits and protection sub-circuits for different detection temperatures and different compressor currents, different preset exhaust thresholds are set for the protection main circuit and protection sub-circuit; and the path switching of the main circuit and protection sub-circuit is controlled according to the compressor current and detection temperature. That is, different protection circuits are selected to protect the compressor from refrigerant shortage according to different detection temperature parameters and different compressor current parameters. Furthermore, the compressed exhaust is compared with the preset exhaust threshold corresponding to the path state, and the compressor protection circuit of the path state is controlled to perform the refrigerant shortage protection action, thereby realizing refrigerant shortage protection of the compressor, realizing different levels of compressor refrigerant shortage protection, and improving the accuracy of compressor refrigerant shortage protection.

[0111] To better implement the air conditioner compressor control method in this application embodiment, based on the air conditioner compressor control method, this application embodiment also provides an air conditioner compressor control device, applied to an air conditioning equipment. The air conditioning equipment includes a compressor protection circuit for compressor refrigerant shortage protection. The compressor protection circuit includes a main protection circuit and a secondary protection circuit connected in parallel with the main protection circuit, such as... Figure 7 As shown, the air conditioner compressor control device includes modules 701-703:

[0112] Acquisition module 701: used to acquire the detection temperature, compressor discharge parameters and compressor current corresponding to the target mode of the air conditioner, wherein the detection temperature includes the indoor temperature and / or the coil temperature;

[0113] Switching module 702: used to control the switching of the protection main circuit and the protection sub-circuit according to the detected temperature and the compressor current, wherein the preset exhaust threshold corresponding to the protection sub-circuit is less than the preset exhaust threshold corresponding to the protection main circuit;

[0114] Control module 703: Used to control the compressor protection circuit to disconnect based on the preset exhaust threshold corresponding to the compressor protection circuit according to the compressor exhaust parameters and the circuit status.

[0115] In one possible embodiment of this application, the switching module 702 is used to control the switching of the protection main circuit and the protection secondary circuit according to the detected temperature and the compressor current, specifically including:

[0116] If the rate of change of the detected temperature is less than a preset temperature change threshold, then the compressor current is compared with the preset current threshold corresponding to the protection main circuit.

[0117] If the compressor current is less than the preset current threshold corresponding to the main protection circuit, the main protection circuit is controlled to be disconnected, and the secondary protection circuit is connected.

[0118] If the compressor current is greater than or equal to the preset current threshold corresponding to the main protection circuit, the main protection circuit is controlled to continue, and the secondary protection circuit is disconnected.

[0119] In one possible implementation of this application, the detected temperature includes indoor temperature and coil temperature; the switching module 702 is used to compare the compressor current with a preset current threshold corresponding to the protection main circuit if the temperature change rate of the detected temperature is less than a preset temperature change threshold, specifically including:

[0120] Calculate the rate of change of indoor temperature corresponding to the indoor temperature within a preset time period, and the rate of change of coil temperature corresponding to the coil temperature.

[0121] If the rate of change of indoor temperature is less than a preset indoor temperature threshold and the rate of change of coil temperature is less than a preset coil temperature threshold, then the compressor current is compared with the preset current threshold corresponding to the protection main circuit.

[0122] In one possible implementation of this application, the control module 703 is used to control the compressor protection circuit to disconnect based on a preset discharge threshold corresponding to the compressor protection circuit and the circuit status, specifically including:

[0123] The compressor exhaust parameters and the preset exhaust threshold corresponding to the compressor protection circuit of the passage status are compared;

[0124] If the compressor discharge parameter is greater than or equal to the preset discharge threshold corresponding to the compressor protection circuit, the compressor protection circuit is controlled to disconnect, thereby stopping the compressor.

[0125] In one possible implementation of this application, the acquisition module 701 is used to acquire the detection temperature, compressor discharge parameters, and compressor current corresponding to the target mode of the air conditioner. The detection temperature includes the indoor temperature and / or the coil temperature. Specifically, this includes:

[0126] Obtain the compressor's downtime;

[0127] If the shutdown duration is longer than the preset shutdown duration, then the steps of obtaining the detection temperature, compressor exhaust parameters and compressor current corresponding to the target mode of the air conditioner are executed.

[0128] In one possible embodiment of this application, after the control module 703 controls the compressor protection circuit to disconnect based on the preset discharge threshold corresponding to the compressor protection circuit according to the compressor discharge parameters and the circuit status, a feedback module is further included, for:

[0129] When the compressor protection circuit is disconnected, the number of times the compressor protection circuit is disconnected is counted for a preset time period;

[0130] If the number of circuit breaks exceeds the preset circuit break threshold, the compressor will be shut down and the information that the compressor is low on refrigerant will be sent to the display terminal corresponding to the compressor.

[0131] This application provides an air conditioning compressor control device, which includes a compressor protection circuit for compressor refrigerant shortage protection. The compressor protection circuit includes a main protection circuit and a secondary protection circuit connected in parallel with the main protection circuit. It acquires the detection temperature, compressor discharge parameters, and compressor current corresponding to the air conditioning target mode. The detection temperature includes the indoor temperature and / or the coil temperature. Based on the detection temperature and the compressor current, it controls the switching of the main protection circuit and the secondary protection circuit, wherein a preset discharge threshold corresponding to the secondary protection circuit is lower than a preset discharge threshold corresponding to the main protection circuit. Based on the compressor discharge parameters and the preset discharge threshold corresponding to the compressor protection circuit in the circuit state, it controls the compressor protection circuit to disconnect. That is, by setting corresponding current protection main circuits and protection sub-circuits for different detection temperatures and different compressor currents, different preset exhaust thresholds are set for the protection main circuit and protection sub-circuit; and the path switching of the main circuit and protection sub-circuit is controlled according to the compressor current and detection temperature. That is, different protection circuits are selected to protect the compressor from refrigerant shortage according to different detection temperature parameters and different compressor current parameters. Furthermore, the compressed exhaust is compared with the preset exhaust threshold corresponding to the path state, and the compressor protection circuit of the path state is controlled to perform the refrigerant shortage protection action, thereby realizing refrigerant shortage protection of the compressor, realizing different levels of compressor refrigerant shortage protection, and improving the accuracy of compressor refrigerant shortage protection.

[0132] This invention also provides an air conditioning device, such as... Figure 8 As shown, Figure 8 This is a schematic diagram of an embodiment of the air conditioning equipment provided in this application.

[0133] The air conditioning equipment integrates any of the air conditioning compressor control devices provided in the embodiments of the present invention, and the air conditioning equipment includes:

[0134] A compressor protection circuit 805 for compressor refrigerant shortage protection includes a main protection circuit 400 and a secondary protection circuit 500 connected in parallel with the main protection circuit 400, as well as a switching assembly for switching the path of the main protection circuit or the path of the secondary protection circuit.

[0135] One or more processors;

[0136] Memory; and

[0137] One or more applications, wherein the one or more applications are stored in the memory and configured by the processor to execute the steps of the air conditioner compressor control method described in any of the embodiments of the above-described air conditioner compressor control method.

[0138] Specifically, the switching assembly includes a first switch connected in series with the main protection circuit and a second switch connected in series with the second protection circuit.

[0139] Specifically, an air conditioning device may include components such as a processor 801 with one or more processing cores, a memory 802 with one or more computer-readable storage media, a power supply 803, and an input unit 804. Those skilled in the art will understand that... Figure 8 The air conditioning equipment structure shown does not constitute a limitation on the air conditioning equipment and may include more or fewer components than shown, or combine certain components, or have different component arrangements. Wherein:

[0140] The processor 801 is the control center of the air conditioning unit. It connects to various parts of the unit via various interfaces and lines. By running or executing software programs and / or modules stored in the memory 802, and by calling data stored in the memory 802, it performs various functions and processes data, thereby providing overall monitoring of the air conditioning unit. Optionally, the processor 801 may include one or more processing cores; preferably, the processor 801 may integrate an application processor and a modem processor. The application processor primarily handles the operating system, user interface, and applications, while the modem processor primarily handles wireless communication. It is understood that the modem processor may not be integrated into the processor 801.

[0141] The memory 802 can be used to store software programs and modules. The processor 801 executes various functional applications and data processing by running the software programs and modules stored in the memory 802. The memory 802 may mainly include a program storage area and a data storage area. The program storage area may store the operating system, application programs required for at least one function (such as sound playback function, image playback function, etc.), etc.; the data storage area may store data created based on the use of the air conditioning equipment, etc. In addition, the memory 802 may include high-speed random access memory, and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state storage device. Accordingly, the memory 802 may also include a memory controller to provide the processor 801 with access to the memory 802.

[0142] In some embodiments of this application, the air conditioning control device can be implemented as a computer program, and the computer program can be implemented in, for example... Figure 8 The air conditioning unit shown is running. The air conditioning unit's memory can store the various program modules that make up the air conditioning control device, for example, Figure 7 The detection and acquisition module 701, switching module 702, and control module 703 are shown. The computer program composed of these modules causes the processor to execute the steps of the air conditioning control methods in the various embodiments of this application described in this specification.

[0143] For example, Figure 8 The air conditioning equipment shown can be used as follows Figure 7 The detection and acquisition module 701 in the air conditioning control device shown executes step S301. The air conditioning device can execute step S302 via the switching module 702. The air conditioning device can execute step S303 via the control module 703. The air conditioning device includes a processor, memory, and network interface connected via a system bus. The processor of the air conditioning device provides computing and control capabilities. The memory of the air conditioning device includes a non-volatile storage medium and internal memory. The non-volatile storage medium stores an operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium. The network interface of the air conditioning device is used for communication with external air conditioning devices via a network connection. When the computer program is executed by the processor, it implements an air conditioning control method.

[0144] The air conditioning equipment also includes a power supply 803 that supplies power to various components. Preferably, the power supply 803 can be logically connected to the processor 801 through a power management system, thereby enabling functions such as charging, discharging, and power consumption management through the power management system. The power supply 803 may also include one or more DC or AC power supplies, recharging systems, power fault detection circuits, power converters or inverters, power status indicators, and other arbitrary components.

[0145] The air conditioning unit may also include an input unit 804, which can be used to receive input digital or character information, and generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function control.

[0146] Although not shown, the air conditioning device may also include a display unit, etc., which will not be described in detail here. Specifically, in this embodiment, the processor 801 in the air conditioning device loads the executable files corresponding to the processes of one or more application programs into the memory 802 according to the following instructions, and the processor 801 runs the application programs stored in the memory 802 to realize various functions, as follows:

[0147] When the calling process of the target object is detected, obtain the background process data of each application.

[0148] Based on the background process data, determine the target application that invokes the target object;

[0149] Based on the preset authorized application table of the target object and the application information of the target application, a call prompt message is generated.

[0150] Those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be performed by instructions, or by instructions controlling related hardware. These instructions can be stored in a computer-readable storage medium and loaded and executed by a processor.

[0151] Therefore, embodiments of the present invention provide a computer-readable storage medium, which may include: read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk, etc. A computer program is stored thereon, which is loaded by a processor to execute the steps in any of the air conditioner compressor control methods provided in the embodiments of the present invention. For example, the computer program loaded by the processor can execute the following steps:

[0152] When the calling process of the target object is detected, obtain the background process data of each application.

[0153] Based on the background process data, determine the target application that invokes the target object;

[0154] Based on the preset authorized application table of the target object and the application information of the target application, a call prompt message is generated.

[0155] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the detailed descriptions of other embodiments above, which will not be repeated here.

[0156] In practice, each of the above units or structures can be implemented as an independent entity or can be arbitrarily combined to be implemented as the same or several entities. For the specific implementation of each of the above units or structures, please refer to the previous method embodiments, which will not be repeated here.

[0157] For details on the implementation of each of the above operations, please refer to the previous examples, which will not be repeated here.

[0158] The above provides a detailed description of an air conditioning compressor control method, device, air conditioning equipment, and storage medium provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A method for controlling an air conditioning compressor, characterized in that, The control method is applied to an air conditioning device, which includes a compressor protection circuit for compressor refrigerant shortage protection. The compressor protection circuit includes a main protection circuit and a secondary protection circuit connected in parallel with the main protection circuit. The method includes: The detection temperature, compressor discharge parameters, and compressor current corresponding to the target mode of the air conditioner are obtained, wherein the detection temperature includes the indoor temperature and / or the coil temperature. Based on the detected temperature and the compressor current, the path switching of the protection main circuit and the protection sub-circuit is controlled, wherein the preset exhaust threshold corresponding to the protection sub-circuit is less than the preset exhaust threshold corresponding to the protection main circuit; Based on the compressor exhaust parameters and the preset exhaust threshold corresponding to the compressor protection circuit of the circuit, the compressor protection circuit is controlled to disconnect.

2. The air conditioning compressor control method according to claim 1, characterized in that, The step of controlling the switching of the protection main circuit and the protection secondary circuit based on the detected temperature and the compressor current includes: If the rate of change of the detected temperature is less than a preset temperature change threshold, then the compressor current is compared with the preset current threshold corresponding to the protection main circuit. If the compressor current is less than the preset current threshold corresponding to the main protection circuit, the main protection circuit is controlled to be disconnected, and the secondary protection circuit is connected. If the compressor current is greater than or equal to the preset current threshold corresponding to the main protection circuit, the main protection circuit is controlled to continue, and the secondary protection circuit is disconnected.

3. The air conditioning compressor control method according to claim 2, characterized in that, The detected temperatures include indoor temperature and coil temperature; If the rate of change of the detected temperature is less than a preset temperature change threshold, then comparing the compressor current with a preset current threshold corresponding to the protection main circuit includes: Calculate the rate of change of indoor temperature corresponding to the indoor temperature within a preset time period, and the rate of change of coil temperature corresponding to the coil temperature. If the rate of change of indoor temperature is less than a preset indoor temperature threshold and the rate of change of coil temperature is less than a preset coil temperature threshold, then the compressor current is compared with the preset current threshold corresponding to the protection main circuit.

4. The air conditioning compressor control method according to claim 1, characterized in that, The step of controlling the compressor protection circuit to disconnect based on the preset discharge threshold corresponding to the compressor protection circuit according to the compressor discharge parameters and the circuit status includes: The compressor exhaust parameters and the preset exhaust threshold corresponding to the compressor protection circuit of the passage status are compared; If the compressor discharge parameter is greater than or equal to the preset discharge threshold corresponding to the compressor protection circuit, the compressor protection circuit is controlled to disconnect, thereby stopping the compressor.

5. The air conditioning compressor control method according to claim 1, characterized in that, Before obtaining the detection temperature, compressor discharge parameters, and compressor current corresponding to the air conditioner target mode, the method further includes: Obtain the compressor's downtime; If the shutdown duration is longer than the preset shutdown duration, then the steps of obtaining the detection temperature, compressor exhaust parameters and compressor current corresponding to the target mode of the air conditioner are executed.

6. The air conditioning compressor control method according to any one of claims 1-5, characterized in that, After controlling the compressor protection circuit to disconnect based on the preset discharge threshold corresponding to the compressor discharge parameters and the circuit status, the method further includes: When the compressor protection circuit is disconnected, the number of times the compressor protection circuit is disconnected is counted for a preset time period; If the number of circuit breaks exceeds the preset circuit break threshold, the compressor will be shut down and the information that the compressor is low on refrigerant will be sent to the display terminal corresponding to the compressor.

7. An air conditioning compressor control device, characterized in that, An air conditioning unit is used in air conditioning equipment, which includes a compressor protection circuit for compressor refrigerant shortage protection. The compressor protection circuit includes a main protection circuit and a secondary protection circuit connected in parallel with the main protection circuit. The air conditioning compressor control device includes: Acquisition module: used to acquire the detection temperature, compressor discharge parameters and compressor current corresponding to the target mode of the air conditioner, wherein the detection temperature includes the indoor temperature and / or the coil temperature; Switching module: used to control the switching of the protection main circuit and the protection sub-circuit according to the detected temperature and the compressor current, wherein the preset exhaust threshold corresponding to the protection sub-circuit is less than the preset exhaust threshold corresponding to the protection main circuit; Control module: Used to control the compressor protection circuit to disconnect based on the preset exhaust threshold corresponding to the compressor protection circuit and the circuit status of the compressor exhaust parameters and the circuit state.

8. An air conditioning device, characterized in that, The air conditioning equipment includes: A compressor protection circuit for compressor refrigerant shortage protection, the compressor protection circuit includes a protection main circuit and a protection secondary circuit connected in parallel with the protection main circuit, and a switching component for switching the protection main circuit path or the protection secondary circuit path; One or more processors; Memory; and One or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the processor to implement the air conditioning compressor control method according to any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that, It stores a computer program, which is loaded by a processor to execute the steps of the air conditioning compressor control method according to any one of claims 1 to 6.

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