Control methods and devices for multi-module air conditioning units and multi-module air conditioning units

Abstract

This disclosure provides a control method, apparatus, and multi-module air conditioning unit, relating to the field of air conditioning. The multi-module air conditioning unit includes multiple unit modules, each unit module corresponding to a compressor. The control method includes: acquiring the on / off state of the multi-module air conditioning unit when the first ambient temperature of the multi-module air conditioning unit exceeds the operating ambient temperature range; determining the medium temperature acquired by the unit module corresponding to each compressor in the operating state when the multi-module air conditioning unit is in the on / off state; and controlling the state of each compressor in the operating state based on the medium temperature acquired by the unit module corresponding to each compressor in the operating state.

Description

Technical Field

[0001] This disclosure relates to the field of air conditioning, and in particular to a control method, apparatus and multi-module air conditioning unit. Background Technology

[0002] A multi-module air conditioning unit refers to an air conditioning unit in which multiple air conditioning units are modularly combined and operated in a unified manner. In related technologies, when the ambient temperature of a multi-module air conditioning unit exceeds its operating temperature range, multiple compressors of the unit shut down simultaneously, causing a sudden change in water temperature. Summary of the Invention

[0003] One technical problem this disclosure aims to solve is to provide a control method, device, and multi-module air conditioning unit that can reduce medium temperature fluctuations.

[0004] According to one aspect of this disclosure, a control method for a multi-module air conditioning unit is proposed. The multi-module air conditioning unit includes multiple unit modules, each unit module corresponding to a compressor. The control method includes: acquiring the on / off state of the multi-module air conditioning unit when the first ambient temperature of the multi-module air conditioning unit exceeds the operating ambient temperature range; determining the medium temperature acquired by the unit module corresponding to each compressor in the operating state when the multi-module air conditioning unit is in the on / off state; and controlling the state of each compressor in the operating state according to the medium temperature acquired by the unit module corresponding to each compressor in the operating state.

[0005] In some embodiments, the second ambient temperature detected by each unit module in the multi-module air conditioning unit is obtained; and based on the number of unit modules in which the second ambient temperature exceeds the temperature threshold range and the duration exceeds the time threshold, it is determined whether the first ambient temperature of the multi-module air conditioning unit exceeds the operating ambient temperature range.

[0006] In some embodiments, determining whether the first ambient temperature of a multi-module air conditioning unit exceeds the operating ambient temperature range based on the number of unit modules in which the second ambient temperature exceeds the temperature threshold range and the duration exceeds the time threshold includes: determining that the first ambient temperature of the multi-module air conditioning unit exceeds the operating ambient temperature range when more than a first predetermined number of unit modules detect that the second ambient temperature exceeds the temperature threshold range and the duration exceeds the time threshold.

[0007] In some embodiments, controlling the state of each compressor in operation based on the medium temperature obtained by the unit module corresponding to each compressor in operation includes: controlling the compressor to stop when the medium temperature meets the shutdown temperature threshold; and controlling the compressor to operate normally when the medium temperature does not meet the shutdown temperature threshold.

[0008] In some embodiments, the medium temperature obtained by the unit module corresponding to each compressor in the shutdown state is determined; if the medium temperature obtained by the unit module corresponding to the compressor in the shutdown state meets the start-up temperature threshold, the shutdown state of the compressor in the shutdown state is maintained.

[0009] In some embodiments, when the multi-module air conditioning unit is in the off state, the multi-module air conditioning unit is controlled to start, and all compressors are kept in the off state.

[0010] In some embodiments, when the first ambient temperature of the multi-module air conditioning unit does not exceed the operating ambient temperature range, the state of each compressor is controlled according to the medium temperature obtained by the corresponding unit module of each compressor and the priority of the unit module.

[0011] In some embodiments, each unit module detects the ambient temperature via a temperature sensor. If the number of unit modules with faulty temperature sensors is greater than a second predetermined number, the second ambient temperature detected by the unit modules with faulty temperature sensors is set to exceed a temperature threshold range; and if the number of unit modules with faulty temperature sensors is less than or equal to the second predetermined number, the second ambient temperature detected by the unit modules with faulty temperature sensors is set to not exceed a temperature threshold range.

[0012] In some embodiments, the second predetermined number is determined based on the reliability requirements of the multi-module air conditioning unit.

[0013] In some embodiments, the first predetermined number is determined based on the reliability requirements of the multi-module air conditioning unit.

[0014] In some embodiments, the second ambient temperature detected by each unit module is summarized and displayed.

[0015] According to another aspect of this disclosure, a control device for a multi-module air conditioning unit is also proposed, wherein the multi-module air conditioning unit includes multiple unit modules, each unit module corresponding to a compressor. The control device includes: a status acquisition module configured to acquire the on / off status of the multi-module air conditioning unit when the first ambient temperature of the multi-module air conditioning unit exceeds the operating ambient temperature range; a medium temperature determination module configured to determine the medium temperature acquired by the unit module corresponding to each compressor in the operating state when the multi-module air conditioning unit is in the on / off state; and a status control module configured to control the status of each compressor in the operating state according to the medium temperature acquired by the unit module corresponding to each compressor in the operating state.

[0016] According to another aspect of this disclosure, a control device for a multi-module air conditioning unit is also proposed, comprising: a memory; and a processor coupled to the memory, the processor being configured to execute the control method for the multi-module air conditioning unit as described above based on instructions stored in the memory.

[0017] According to another aspect of this disclosure, a multi-module air conditioning unit is also proposed, comprising: the control device for the aforementioned multi-module air conditioning unit.

[0018] According to another aspect of this disclosure, a computer-readable storage medium is also proposed, on which computer program instructions are stored, which, when executed by a processor, implement the control method of the multi-module air conditioning unit described above.

[0019] According to another aspect of this disclosure, a computer program product is also proposed, comprising a computer program or instructions that, when executed by a processor, implement the control method of the multi-module air conditioning unit described above.

[0020] In this embodiment of the disclosure, when the first ambient temperature of the multi-module air conditioning unit exceeds the operating ambient temperature range, it does not control all compressors to shut down. Instead, it controls the state of the compressors based on the on / off status of the multi-module air conditioning unit and the medium temperature obtained by the corresponding unit module of each compressor in operation. This reduces the occurrence of sudden changes in medium temperature caused by the sudden shutdown of all compressors, which would affect the user experience.

[0021] Other features and advantages of this disclosure will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0022] The accompanying drawings, which form part of this specification, illustrate embodiments of this disclosure and, together with the specification, serve to explain the principles of this disclosure.

[0023] This disclosure will become clearer with reference to the accompanying drawings and the following detailed description, wherein:

[0024] Figure 1 This is a flowchart illustrating some embodiments of the control method for a multi-module air conditioning unit disclosed herein;

[0025] Figure 2 These are schematic diagrams of some embodiments of the multi-module air conditioning unit disclosed herein;

[0026] Figure 3 Flowcharts illustrating other embodiments of the control method for the multi-module air conditioning unit disclosed herein;

[0027] Figure 4 Flowcharts illustrating other embodiments of the control method for the multi-module air conditioning unit disclosed herein;

[0028] Figure 5 Schematic diagrams of some embodiments of the control device for a multi-module air conditioning unit;

[0029] Figure 6 Schematic diagrams of other embodiments of the control device for a multi-module air conditioning unit; and

[0030] Figure 7 Schematic diagrams of other embodiments of the control device for a multi-module air conditioning unit. Detailed Implementation

[0031] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present disclosure.

[0032] At the same time, it should be understood that, for ease of description, the dimensions of the various parts shown in the accompanying drawings are not drawn according to actual scale.

[0033] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this disclosure or its application or use.

[0034] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0035] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0036] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0037] To make the objectives, technical solutions, and advantages of this disclosure clearer, the following detailed description is provided in conjunction with specific embodiments and the accompanying drawings.

[0038] Figure 1 This is a flowchart illustrating some embodiments of the control method for a multi-module air conditioning unit disclosed herein. These embodiments are executed by a control device, which may be a controller or a display panel with control functions. These embodiments include steps S11-S13.

[0039] In step S11, when the first ambient temperature of the multi-module air conditioning unit exceeds the operating ambient temperature range, the on / off status of the multi-module air conditioning unit is obtained.

[0040] A multi-module air conditioning unit consists of multiple unit modules, each with its own compressor. Each module is used for heat exchange of a medium within a corresponding area. This medium can be a liquid, such as water or alcohol, or a gas. Figure 2 As shown, the multi-module air conditioning unit 20 is composed of two or more unit modules. For example, the attached... Figure 2 The system displays that the multi-module air conditioning unit consists of 16 modules, the number of which can be randomly set. The status of all modules is displayed on a single panel. Each module has one or more temperature sensors 22, such as ambient temperature sensors. If a module has multiple ambient temperature sensors, they are processed as a whole. The ambient temperature information collected by each module is independent of the others.

[0041] In some embodiments, if the ambient temperature of the multi-module air conditioning unit exceeds the operating ambient temperature range, the multi-module air conditioning unit enters an ambient temperature out-of-range protection state. At this time, the on / off state of the multi-module air conditioning unit includes either an on or off state. The on / off state of the multi-module air conditioning unit can be determined by the status of the on / off button.

[0042] In step S12, when the multi-module air conditioning unit is in the on state, the medium temperature obtained by the unit module corresponding to each compressor in the working state is determined.

[0043] If the power button of the multi-module air conditioning unit is set to power on, the compressor that is in operation will continue to perform normal frequency increase / decrease and shutdown.

[0044] For example, each unit module uses a water temperature sensor to detect the water temperature in its corresponding area.

[0045] In step S13, the state of each compressor in operation is controlled according to the medium temperature obtained by the corresponding unit module of each compressor in operation.

[0046] For example, for each compressor in operation, the compressor frequency can be adjusted based on the water temperature detected by its corresponding unit module, and the compressor can be stopped if predetermined conditions are met.

[0047] In the above embodiments, when the first ambient temperature of the multi-module air conditioning unit exceeds the operating ambient temperature range, it does not control all compressors to shut down. Instead, it controls the state of the compressors based on the on / off status of the multi-module air conditioning unit and the medium temperature obtained by the corresponding unit module of each compressor in operation. This can reduce the occurrence of sudden changes in medium temperature caused by the sudden shutdown of all compressors, which would affect the user experience.

[0048] In some embodiments of this disclosure, the second ambient temperature detected by each module in the multi-module air conditioning unit is obtained; based on the number of module units where the second ambient temperature exceeds the temperature threshold range and the duration is greater than the time threshold, it is determined whether the first ambient temperature of the multi-module air conditioning unit exceeds the operating ambient temperature range.

[0049] In related technologies, multi-module air conditioning units control the operation of their respective compressors using the ambient temperature data collected by each module, without processing or judging the ambient temperature data collected by other modules. For example, if the ambient temperature of a certain module exceeds a threshold, the compressor of that module will shut down. In this case, it is easy for the ambient temperatures of multiple operating compressors to exceed the threshold range simultaneously and then shut down at the same time, causing water temperature fluctuations.

[0050] In this embodiment, for example, the ambient temperature can be detected by the temperature sensor of each unit module. Then, based on the number of unit modules whose ambient temperature exceeds the temperature threshold range and the duration exceeds the time threshold, the ambient temperature of the multi-unit module is determined, thereby identifying whether the ambient temperature of the multi-module air conditioning unit exceeds the working ambient temperature range. That is, the ambient temperature data collected by all unit modules participate in the subsequent scheduling and control of the compressor, thereby enabling the medium temperature to remain stable.

[0051] In some embodiments, the second ambient temperature detected by each unit module is summarized and displayed.

[0052] For example, the second ambient temperature detected by each unit module can be summarized and displayed on the display panel, which facilitates the unified processing and scheduling of ambient temperature.

[0053] In some embodiments, if the second ambient temperature detected by more than a first predetermined number of unit modules exceeds the temperature threshold range and the duration exceeds the time threshold, it is determined that the first ambient temperature of the multi-module air conditioning unit exceeds the operating ambient temperature range.

[0054] If the number of unit modules whose second ambient temperature does not exceed the temperature threshold range or whose duration does not exceed the time threshold is less than or equal to the first predetermined number, then it is considered that the first ambient temperature of the multi-module air conditioning unit does not exceed the operating ambient temperature range.

[0055] For example, if more than half of the unit modules detect an ambient temperature exceeding the temperature threshold range, and the duration of this exceedance exceeds 10 seconds, then the ambient temperature of the multi-module air conditioning unit is considered to be outside the operating ambient temperature range. Because both the ambient temperatures collected by multiple unit modules and the duration of exceeding the temperature threshold range are considered, it reduces fluctuations in ambient temperature at the range boundaries, which could cause the multi-module air conditioning unit to fluctuate between operating and non-operating ambient temperatures, leading to frequent compressor start-stop cycles.

[0056] In some embodiments, the first predetermined number is determined based on the reliability requirements of the multi-module air conditioning unit.

[0057] For example, different applications have different reliability requirements for multi-module air conditioning units. If the application requires high reliability, meaning it cannot be shut down arbitrarily and must maintain normal operation as much as possible, then the first predetermined number should be set as close as possible to the total number of modules in the multi-module air conditioning unit. If the first predetermined number is set to the total number of modules, it means that the multi-module air conditioning unit does not have an ambient temperature operating range protection function. If the application requires ensuring the unit's lifespan and allows for appropriate shutdown protection, then the first predetermined number can be set to a smaller value, such as 1 or 2. By setting the first predetermined number, the needs of different applications can be met.

[0058] The following example illustrates how to determine whether the ambient temperature of a multi-module air conditioning unit exceeds its operating temperature range. Figure 3 As shown, Figure 3 This is a flowchart illustrating some other embodiments of the control method for a multi-module air conditioning unit disclosed herein, including S31-S37.

[0059] In step S31, each unit module monitors the ambient temperature in real time.

[0060] The ambient temperature data collected by all unit modules can be aggregated on the display panel for unified processing.

[0061] In step S32, for any given unit module, determine whether the ambient temperature detected by the unit module exceeds the temperature threshold range. If so, proceed to step S33; otherwise, continue to step S31.

[0062] If each unit module uses the same compressor, the temperature threshold range can be set consistently. This temperature threshold range can also be determined experimentally based on the compressor and the paired unit module, thus achieving a more precise threshold setting.

[0063] In step S33, determine whether the duration exceeds 10 seconds. If yes, proceed to step S34; otherwise, continue to step S32.

[0064] Those skilled in the art should understand that the 10 seconds mentioned here is for illustrative purposes only and can be set according to actual circumstances.

[0065] In step S34, the number of unit modules operating outside the temperature threshold range is calculated.

[0066] Only when the detected ambient temperature exceeds the temperature threshold range and persists for a certain period of time is the ambient temperature of the unit module considered to be outside the operating range. The operating range refers to the range of ambient temperatures within which the unit operates normally.

[0067] In step S35, it is determined whether the number of unit modules operating outside the temperature threshold range exceeds one-half. If so, step S36 is executed; otherwise, step S37 is executed.

[0068] In step S36, it is determined that the ambient temperature of the multi-module air conditioning unit exceeds the operating ambient temperature range, and the multi-module air conditioning unit enters the ambient temperature out-of-range protection state.

[0069] In step S37, the status of each compressor is controlled according to the unit logic.

[0070] For example, the status of each compressor is controlled according to the medium temperature obtained by the corresponding unit module and the priority of the unit module.

[0071] In the above embodiments, the ambient temperatures detected by multiple unit modules are combined to jointly determine whether the multi-module air conditioning unit is operating outside its operating temperature range. Compared to judging each unit module individually, this embodiment can reduce the occurrence of simultaneous compressor shutdowns across all unit modules, thereby improving the stability of the medium temperature. Furthermore, when determining whether each unit module is operating outside its temperature threshold range, the detected ambient temperature needs to remain outside the range for a certain period of time. This reduces the frequent start-stop control of subsequent compressors caused by ambient temperature fluctuations at the range boundaries.

[0072] In some embodiments of this disclosure, when the multi-module air conditioning unit is in the on state, the medium temperature of the unit module corresponding to each compressor in the multi-module air conditioning unit in the working state is determined, the compressor whose medium temperature meets the shutdown temperature threshold is controlled to shut down, and the compressor whose medium temperature does not meet the shutdown temperature threshold is controlled to operate normally.

[0073] For example, the power button on this multi-module air conditioning unit is for power on, and the compressor currently in operation will continue to perform normal frequency increase / decrease and shutdown control. If the water temperature detected by the unit module meets the shutdown temperature threshold, the corresponding compressor will be shut down; if the water temperature does not meet the shutdown temperature threshold, the unit will not shut down, thus meeting the user's water temperature requirements. In related technologies, all compressors will shut down as long as the ambient temperature of the multi-module air conditioning unit exceeds the operating ambient temperature range, without considering that the water temperature of each compressor module may not have reached the shutdown temperature. In this embodiment, the water temperature detected by the compressor module is taken into account, thus reducing the possibility of simultaneous compressor shutdown and minimizing water temperature fluctuations.

[0074] In some embodiments, when the multi-module air conditioning unit is in the on state, the medium temperature obtained by the unit module corresponding to each compressor in the multi-module air conditioning unit that is in the off state is determined; if the medium temperature obtained by the unit module corresponding to the compressor in the off state meets the on-start temperature threshold, the off state of the compressor in the off state is maintained.

[0075] For example, the power button on this multi-module air conditioning unit is set to power on. All compressors that have been shut down will not be scheduled to start; that is, no non-working compressors will be turned on. Furthermore, compressors that are currently in operation will stop when the medium temperature meets the shutdown temperature threshold, and even if the medium temperature also meets the start-up temperature threshold, they will not be scheduled to start. This reduces the problem of large fluctuations in medium temperature caused by compressors that have been shut down starting up when the medium temperature meets the start-up temperature threshold.

[0076] In some embodiments, when the multi-module air conditioning unit is in the off state, the multi-module air conditioning unit is controlled to start, and all compressors are kept in the off state.

[0077] For example, if the power button of a multi-module air conditioning unit is set to off, it can be turned on via button presses on the display panel, but all compressors will not start. Since the ambient temperature of the multi-module air conditioning unit exceeds its operating temperature range, starting the compressors would affect their operation. Therefore, in this embodiment, even if the power button is set to on, the compressors will not start to protect them.

[0078] In some embodiments, when the first ambient temperature of the multi-module air conditioning unit does not exceed the operating ambient temperature range, the state of each compressor is controlled according to the medium temperature obtained by the corresponding unit module of each compressor and the priority of the unit module.

[0079] For example, the system determines whether to shut down the compressor based on whether the medium temperature obtained by the corresponding unit module of each compressor meets the shutdown temperature threshold. If the medium temperature obtained by the corresponding unit modules of multiple compressors meets the shutdown temperature threshold, the start-stop status of the compressors in each unit module is controlled in turn according to the priority of the unit modules, thereby reducing the problem of excessive fluctuation in medium temperature caused by multiple compressors stopping or starting at the same time.

[0080] The following will use a specific embodiment as an example to introduce the process of a multi-module air conditioning unit entering the ambient temperature out-of-range protection state. Figure 4 As shown, Figure 4 The following is a flowchart illustrating some other embodiments of the control method for the multi-module air conditioning unit disclosed herein, including steps S41-S410.

[0081] In step S41, determine whether the power button is in the power-on state. If not, proceed to step S42; otherwise, proceed to step S43.

[0082] In step S42, the device is powered on using the power button, and then step S43 is executed.

[0083] When the power button is switched from the off position to the on position, all compressors will not start; the power button will remain on unless someone manually switches it off. If the ambient temperature meets the operating range while the power button is on, the compressors will start and operate normally according to the established logic.

[0084] In step S43, it is determined whether the water temperature corresponding to the working compressor meets the shutdown temperature threshold. If yes, step S44 is executed; otherwise, step S45 is executed.

[0085] In step S44, the compressor is stopped.

[0086] In step S45, the compressor is controlled to operate normally.

[0087] In step S46, it is determined whether the water temperature corresponding to the non-working compressor meets the start-up temperature threshold. If so, step S47 is executed; otherwise, step S48 is executed.

[0088] In step S47, the compressor is kept stopped.

[0089] In step S48, the compressor is kept stopped.

[0090] In step S49, it is determined whether the first ambient temperature of the multi-unit module exceeds the operating ambient temperature range. If so, step S41 is executed; otherwise, step S410 is executed.

[0091] In step S410, the multi-module air conditioning unit exits the ambient temperature out-of-range protection state.

[0092] At this time, all compressors of the multi-module air conditioning unit can be scheduled to start normally according to logic. For example, the status of each compressor can be controlled according to the medium temperature obtained by the corresponding unit module and the priority of the unit module.

[0093] In the above embodiments, when the ambient temperature of the multi-module air conditioning unit exceeds the operating ambient temperature range, control is carried out in two ways: the power button is set to either power off or power on, thereby achieving precise control of the compressor and ensuring reliable operation of the compressor within the operating ambient temperature range.

[0094] In related technologies, if the temperature sensor of a certain unit module malfunctions, the compressor of that unit module cannot work, thereby affecting the working efficiency and energy efficiency of the unit module. In some other embodiments of this disclosure, each unit module detects the ambient temperature through a temperature sensor. If the number of unit modules with malfunctioning temperature sensors is greater than a second predetermined number, the second ambient temperature detected by the unit modules with malfunctioning temperature sensors is set to exceed a temperature threshold range; if the number of unit modules with malfunctioning temperature sensors is less than or equal to the second predetermined number, the second ambient temperature detected by the unit modules with malfunctioning temperature sensors is set to not exceed the temperature threshold range.

[0095] For example, if there is a faulty ambient temperature sensor in the multi-module air conditioning unit, and the number of modules with faulty ambient temperature sensors exceeds half of the total number of modules in the unit, then the ambient temperature detected by all faulty ambient temperature sensors will be considered to be outside the temperature threshold range. If the number of modules with faulty ambient temperature sensors does not exceed half of the total number of modules in the unit, then the ambient temperature detected by all faulty ambient temperature sensors will be considered to be within the temperature threshold range.

[0096] In this embodiment, by leveraging the advantages of multi-unit modules, and by comprehensively judging all temperature sensors and setting the ambient temperature detected by the faulty temperature sensor based on the number of faulty temperature sensors, the abnormal shutdown of the compressor caused by inaccurate temperature sensor detection data of individual unit modules in a multi-module air conditioner can be resolved.

[0097] In some embodiments, the second predetermined number is determined based on the reliability requirements of the multi-module air conditioning unit.

[0098] For example, different applications have different reliability requirements for multi-module air conditioning units. If the application requires high reliability, meaning it cannot be shut down arbitrarily and must maintain normal operation as much as possible, then the second predetermined number should be set as close as possible to the total number of modules in the multi-module air conditioning unit. If the second predetermined number is set to the total number of modules, it means that the multi-module air conditioning unit does not have an ambient temperature operating range protection function. If the application requires ensuring the unit's lifespan and allows for appropriate shutdown protection, then the second predetermined number can be set to a smaller value, such as 1 or 2. By setting the second predetermined number, the needs of different applications can be met.

[0099] Figure 5 The diagram shows a structural schematic of some embodiments of a control device for a multi-module air conditioning unit. The multi-module air conditioning unit includes multiple unit modules, each unit module having a corresponding compressor. The control device is, for example, a controller or a display panel, and includes a status acquisition module 510, a medium temperature determination module 520, and a status control module 530.

[0100] The status acquisition module 510 is configured to acquire the on / off status of the multi-module air conditioning unit when the first ambient temperature of the multi-module air conditioning unit exceeds the operating ambient temperature range, for example, by performing actions such as... Figure 1 Step S11 is shown.

[0101] The on / off status of a multi-module air conditioning unit includes either on or off. This status can be determined by the position of the on / off button.

[0102] The medium temperature determination module 520 is configured to determine the medium temperature acquired by the corresponding unit module of each compressor in the multi-module air conditioning unit when the multi-module air conditioning unit is in the on-state. For example, it performs the following... Figure 1 Step S12 is shown.

[0103] In some embodiments, the medium temperature determination module 520 is further configured to determine the medium temperature acquired by the unit module corresponding to each compressor in a stopped state.

[0104] The status control module 530 is configured to control the status of each compressor in operation based on the medium temperature obtained from the unit module corresponding to each compressor in operation, for example, by performing actions such as... Figure 1 Step S13 is shown.

[0105] In some embodiments, the state control module 530 is configured to control the compressor to stop when the medium temperature meets the shutdown temperature threshold, and to control the compressor to operate normally when the medium temperature does not meet the shutdown temperature threshold.

[0106] In the above embodiments, when the first ambient temperature of the multi-module air conditioning unit exceeds the operating ambient temperature range, it does not control all compressors to shut down. Instead, it controls the state of the compressors based on the on / off status of the multi-module air conditioning unit and the medium temperature obtained by the corresponding unit module of each compressor in operation. This can reduce the occurrence of sudden changes in medium temperature caused by the sudden shutdown of all compressors, which would affect the user experience.

[0107] In some embodiments, the state control module 530 is further configured to maintain the shutdown state of the compressor when the medium temperature obtained by the unit module corresponding to the compressor in the shutdown state meets the start-up temperature threshold.

[0108] In this embodiment, the power button of the multi-module air conditioning unit is for power on. All compressors that have been shut down will not be scheduled to start; that is, no non-working compressors will be turned on. Furthermore, compressors that are currently in operation will stop when the medium temperature meets the shutdown temperature threshold, and even if the medium temperature also meets the start-up temperature threshold, they will not be scheduled to start. This reduces the problem of large fluctuations in medium temperature caused by compressors that have been shut down starting up when the medium temperature meets the start-up temperature threshold.

[0109] In some embodiments, the state control module 530 is further configured to control the multi-module air conditioning unit to start up and maintain all compressors in a stopped state when the multi-module air conditioning unit is in a shut-off state.

[0110] In this embodiment, after the multi-module air conditioning unit is turned on from off, all compressors are not turned on to reduce the impact on the ambient temperature.

[0111] In some embodiments, the state control module 530 is further configured to control the state of each compressor according to the medium temperature obtained by the corresponding unit module and the unit module priority, provided that the first ambient temperature of the multi-module air conditioning unit does not exceed the operating ambient temperature range. This embodiment can reduce the problem of excessive fluctuations in medium temperature caused by multiple compressors stopping or starting simultaneously.

[0112] In other embodiments of this disclosure, such as Figure 6 As shown, Figure 6 The diagram shows a structural schematic of another embodiment of a control device for a multi-module air conditioning unit, which also includes a temperature acquisition module 610 and a temperature judgment module 620.

[0113] The temperature acquisition module 610 is configured to acquire the second ambient temperature detected by each unit module in the multi-module air conditioning unit; the temperature judgment module 620 is configured to determine whether the first ambient temperature of the multi-module air conditioning unit exceeds the working ambient temperature range based on the number of unit modules in which the second ambient temperature exceeds the temperature threshold range and the duration exceeds the time threshold.

[0114] For example, if the second ambient temperature detected by more than a first predetermined number of unit modules exceeds the temperature threshold range and the duration exceeds the time threshold, it is determined that the first ambient temperature of the multi-module air conditioning unit exceeds the operating ambient temperature range.

[0115] In some embodiments, the first predetermined number is determined based on the reliability requirements of the multi-module air conditioning unit.

[0116] In the above embodiments, the ambient temperature can be detected by the temperature sensor of each unit module. Then, based on the number of unit modules whose ambient temperature exceeds the temperature threshold range and the duration exceeds the time threshold, the ambient temperature of the multi-unit module is determined, thereby identifying whether the ambient temperature of the multi-module air conditioning unit exceeds the working ambient temperature range. That is, the ambient temperature data collected by all unit modules participate in the subsequent compressor scheduling and control, thereby enabling the medium temperature to be maintained.

[0117] In some embodiments, the control device further includes a temperature display module 630 configured to summarize and display a second ambient temperature detected by each unit module.

[0118] For example, the second ambient temperature detected by each unit module can be summarized and displayed on the display panel, which facilitates the unified processing and scheduling of ambient temperature.

[0119] Figure 7 This is a schematic diagram of the structure of another embodiment of a control device for a multi-module air conditioning unit. The control device 700 includes a memory 710 and a processor 720. The memory 710 can be a disk, flash memory, or any other non-volatile storage medium. The memory 710 is used to store instructions from the above embodiments. The processor 720 is coupled to the memory 710 and can be implemented as one or more integrated circuits, such as a microprocessor or microcontroller. The processor 720 is used to execute the instructions stored in the memory.

[0120] In some embodiments, the processor 720 is coupled to the memory 710 via a BUS bus 730. The control device 700 can also be connected to an external storage device 750 via a storage interface 740 to access external data, and can also be connected to a network or another computer system (not shown) via a network interface 760, which will not be described in detail here.

[0121] In this embodiment, by storing data instructions in a memory and then processing the instructions by a processor, the medium temperature can be kept stable, enabling the multi-module air conditioning unit to operate normally.

[0122] In other embodiments of this disclosure, a multi-module air conditioning unit is protected, which includes the control device described in the above embodiments. The multi-module air conditioning unit consists of multiple unit modules, which are uniformly scheduled and operated.

[0123] In other embodiments, a computer-readable storage medium stores computer program instructions that, when executed by a processor, implement the steps of the methods described above. Those skilled in the art will understand that embodiments of this disclosure can be provided as methods, apparatus, or computer program products. Therefore, this disclosure can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this disclosure can take the form of a computer program product embodied on one or more computer-usable non-transitory storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0124] In some embodiments, a computer program product is protected, comprising a computer program or instructions that, when executed by a processor, implement the methods described above. The computer program product includes a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowchart. In such embodiments, the computer program can be downloaded and installed from a network via a communication device, or installed from a storage device, or installed from ROM. When the computer program is executed by a CPU, it performs the functions defined in the methods of embodiments of this disclosure.

[0125] This disclosure is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this disclosure. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create a machine for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0126] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0127] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0128] This concludes the detailed description of the present disclosure. To avoid obscuring the concept of the disclosure, some details known in the art have not been described. Those skilled in the art will fully understand how to implement the technical solutions disclosed herein based on the above description.

[0129] The methods and apparatus of this disclosure may be implemented in many ways. For example, they may be implemented by software, hardware, firmware, or any combination of software, hardware, and firmware. The above-described order of steps for the methods is for illustrative purposes only, and the steps of the methods of this disclosure are not limited to the order specifically described above unless otherwise specifically stated. Furthermore, in some embodiments, this disclosure may also be implemented as a program recorded on a recording medium, the program including machine-readable instructions for implementing the methods according to this disclosure. Thus, this disclosure also covers recording media storing programs for performing the methods according to this disclosure.

[0130] While specific embodiments of this disclosure have been described in detail by way of example, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of this disclosure. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of this disclosure. The scope of this disclosure is defined by the appended claims.

Claims

1. A control method for a multi-module air conditioning unit, wherein, The multi-module air conditioning unit includes multiple unit modules, each unit module being equipped with a corresponding compressor, and the control method includes: Obtain the second ambient temperature detected by each module in the multi-module air conditioning unit; If the second ambient temperature detected by more than a first predetermined number of unit modules exceeds the temperature threshold range and the duration exceeds the time threshold, it is determined that the first ambient temperature of the multi-module air conditioning unit exceeds the working ambient temperature range. When the ambient temperature of the multi-module air conditioning unit exceeds the operating ambient temperature range, the on / off status of the multi-module air conditioning unit is obtained. With the multi-module air conditioning unit in the on-state, determine the medium temperature acquired by the corresponding unit module for each compressor in operation; and The state of each compressor in operation is controlled based on the medium temperature obtained from the corresponding unit module of each compressor in operation.

2. The control method according to claim 1, wherein, The step of controlling the state of each compressor in operation based on the medium temperature obtained from the corresponding unit module of each compressor in operation includes: The compressor is shut down when the temperature of the medium meets the shutdown temperature threshold; and The compressor operates normally if the temperature of the medium does not meet the shutdown temperature threshold.

3. The control method according to claim 2 further includes: Determine the medium temperature obtained by the corresponding unit module for each compressor that is in a stopped state; as well as If the medium temperature obtained by the unit module corresponding to the compressor in the shutdown state meets the start-up temperature threshold, the shutdown state of the compressor in the shutdown state shall be maintained.

4. The control method according to claim 1 further includes: When the multi-module air conditioning unit is in the off state, control the multi-module air conditioning unit to start, and keep all compressors in the off state.

5. The control method according to claim 1, further comprising: When the ambient temperature of the multi-module air conditioning unit does not exceed the operating ambient temperature range, the state of each compressor is controlled according to the medium temperature obtained by the corresponding unit module of each compressor and the priority of the unit module.

6. The control method according to claim 1, wherein, Each unit module detects the ambient temperature via a temperature sensor. If the number of unit modules with faulty temperature sensors is greater than the second predetermined number, the second ambient temperature detected by the unit modules with faulty temperature sensors will be set to exceed the temperature threshold range. as well as If the number of unit modules with faulty temperature sensors is less than or equal to the second predetermined number, the second ambient temperature detected by the unit modules with faulty temperature sensors is set to not exceed the temperature threshold range.

7. The control method according to claim 6, wherein, The second predetermined number is determined based on the reliability requirements of the multi-module air conditioning unit.

8. The control method according to any one of claims 1 to 7, wherein, The first predetermined number is determined based on the reliability requirements of the multi-module air conditioning unit.

9. The control method according to any one of claims 1 to 7, further comprising: The second ambient temperature detected by each unit module is summarized and displayed.

10. A control device for a multi-module air conditioning unit, wherein, The multi-module air conditioning unit includes multiple unit modules, each unit module being equipped with a corresponding compressor, and the control device includes: The status acquisition module is configured to acquire the second ambient temperature detected by each module in the multi-module air conditioning unit, and determine that the first ambient temperature of the multi-module air conditioning unit exceeds the working ambient temperature range when the second ambient temperature detected by more than a first predetermined number of module modules exceeds the temperature threshold range and the duration exceeds the time threshold. When the first ambient temperature of the multi-module air conditioning unit exceeds the working ambient temperature range, the module acquires the on / off status of the multi-module air conditioning unit. The medium temperature determination module is configured to determine the medium temperature acquired by each compressor module in operation when the multi-module air conditioning unit is in the on-state; and The status control module is configured to control the status of each compressor in operation based on the medium temperature obtained from the unit module corresponding to each compressor in operation.

11. A control device for a multi-module air conditioning unit, comprising: Memory; as well as A processor coupled to the memory, the processor being configured to execute the control method of the multi-module air conditioning unit as described in any one of claims 1 to 9 based on instructions stored in the memory.

12. A multi-module air conditioning unit, comprising: The control device for the multi-module air conditioning unit as described in claim 10 or 11.

13. A computer-readable storage medium having stored thereon computer program instructions that, when executed by a processor, implement the control method for a multi-module air conditioning unit according to any one of claims 1 to 9.

14. A computer program product comprising a computer program or instructions, wherein the computer program or instructions, when executed by a processor, implement the control method of the multi-module air conditioning unit according to any one of claims 1 to 9.

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