Method and apparatus for controlling air conditioner, air conditioner, storage medium

Abstract

The application relates to the technical field of intelligent household appliances, and discloses a method for controlling an air conditioner. The air conditioner comprises a heat dissipation branch used for cooling a heating element of the air conditioner; the method comprises the following steps: acquiring a return gas temperature of a compressor of the air conditioner and a current temperature of the heating element; and controlling the heat dissipation branch to operate according to the return gas temperature and the current temperature. According to the method, the return gas temperature of the compressor and the current temperature of the heating element are acquired, and the heat dissipation branch is controlled to operate according to the return gas temperature of the compressor and the current temperature of the heating element, so that the return gas temperature of the compressor is adjusted, and the compressor is prevented from being overheated. In this way, even if the temperature of the heating element is high, the temperature of refrigerant returned to the compressor due to the cooling of the heating element by the heat dissipation branch is prevented from being too high, so that the stability of air conditioner operation is improved. The application further discloses a device for controlling an air conditioner, an air conditioner and a storage medium.

Description

Technical Field

[0001] This application relates to the field of smart home appliance technology, such as a method and apparatus for controlling an air conditioner, an air conditioner, and a storage medium. Background Technology

[0002] Currently, when an air conditioning system is running, the heat-generating components such as the circuit board continuously work and generate heat, causing the temperature of the heat-generating components to rise continuously. However, excessively high temperatures can affect the performance of the heat-generating components. Therefore, air conditioning systems are often equipped with heat dissipation devices to cool down the heat-generating components such as the circuit board.

[0003] In production practice, setting up a separate heat dissipation device requires separate testing and control, which not only increases the complexity of the system but also affects the stability of the air conditioning system due to different operating states of the heat dissipation device. Therefore, related technologies have introduced a heat dissipation branch in the refrigerant pipeline, utilizing the heat absorption of refrigerant evaporation to dissipate heat and cool the heating elements.

[0004] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art:

[0005] Because the heat dissipation branch diverts some refrigerant to provide cooling for the heating element, when the heating element is at a very high temperature, the heat dissipation branch will carry away the heat generated by the heating element, which will cause the refrigerant returning to the compressor to be too hot, thus causing the compressor to have a return gas overheating fault.

[0006] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0007] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0008] This disclosure provides a method and apparatus for controlling an air conditioner, an air conditioner, and a storage medium to solve the problem of compressor overheating caused by the cooling of the heat dissipation branch after the heat-generating element is cooled.

[0009] In some embodiments, the method for controlling an air conditioner includes a heat dissipation branch for cooling the heating element of the air conditioner; the method for controlling the air conditioner includes: acquiring the return air temperature of the air conditioner's compressor and the current temperature of the heating element; and controlling the operation of the heat dissipation branch based on the return air temperature and the current temperature.

[0010] In some embodiments, controlling the operation of the heat dissipation branch based on the return gas temperature of the compressor and the current temperature of the heating element includes: determining the operating status information of the heat dissipation branch based on the return gas temperature when the current temperature indicates that the heating element has a heat dissipation requirement; and controlling the operation of the heat dissipation branch according to the operating status information.

[0011] In some embodiments, the heat dissipation branch includes a heat dissipation evaporator and an exhaust bypass connected in parallel with the heat dissipation evaporator. A control valve is provided on the exhaust bypass to determine the operating status information of the heat dissipation branch based on the return gas temperature. This includes: opening the control valve to make the exhaust bypass connected when the return gas temperature indicates that the compressor is in a return gas superheated state; and closing the control valve to make the exhaust bypass disconnected when the return gas temperature indicates that the compressor is not in a return gas superheated state.

[0012] In some embodiments, the compressor is determined to be in a return gas superheated state by: obtaining a return gas temperature threshold for the compressor; and determining that the compressor is in a return gas superheated state when the return gas temperature is greater than or equal to the return gas temperature threshold.

[0013] In some embodiments, the heat dissipation branch further includes a water-cooled condenser and a branch throttling component. The water-cooled condenser dissipates heat through the condensate generated by the indoor evaporator of the air conditioner. The method for controlling the air conditioner further includes: obtaining the amount of condensate generated by the indoor evaporator within a preset time period; and controlling the branch throttling component according to the current temperature and the amount of condensate.

[0014] In some embodiments, controlling the branch throttling component based on the current temperature and condensate volume includes: controlling the branch throttling component based on the current temperature when the condensate volume is greater than a first reference water volume.

[0015] In some embodiments, controlling the branch throttling component based on the current temperature and condensate volume further includes: controlling the branch throttling component to close when the condensate volume is less than or equal to a second reference water volume; wherein the second reference water volume is less than a first reference water volume.

[0016] In some embodiments, the apparatus for controlling an air conditioner includes a processor and a memory storing program instructions, wherein the processor executes the method for controlling the air conditioner described above when running the program instructions.

[0017] In some embodiments, the air conditioner includes an air conditioner body, a heat dissipation branch, and a device for controlling the air conditioner as described above, the device being installed in the air conditioner body, and the heat dissipation branch being used to cool the heating element of the air conditioner.

[0018] In some embodiments, the storage medium stores program instructions that, when executed, perform the method for controlling the air conditioner as described above.

[0019] The method, apparatus, air conditioner, and storage medium for controlling an air conditioner provided in this disclosure can achieve the following technical effects:

[0020] By acquiring the return gas temperature of the air conditioner compressor and the current temperature of the heating element, and controlling the operation of the cooling circuit based on these temperatures, the return gas temperature of the compressor is adjusted, thereby preventing the compressor from overheating. In this way, even if the temperature of the heating element is high, the refrigerant temperature returning to the compressor will not become excessively high due to the cooling circuit cooling the heating element, thus improving the stability of the air conditioner's operation.

[0021] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0022] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0023] Figure 1 This is a schematic diagram of a refrigerant pipeline for an air conditioner provided in an embodiment of this disclosure;

[0024] Figure 2 This is a schematic diagram of a method for controlling an air conditioner provided in an embodiment of this disclosure;

[0025] Figure 3 This is a schematic diagram of another method for controlling an air conditioner provided in an embodiment of this disclosure;

[0026] Figure 4 This is a schematic diagram of another method for controlling an air conditioner provided in an embodiment of this disclosure;

[0027] Figure 5 This is a schematic diagram of another method for controlling an air conditioner provided in an embodiment of this disclosure;

[0028] Figure 6 This is a schematic diagram of a device for controlling an air conditioner provided in an embodiment of this disclosure;

[0029] Figure 7 This is a schematic diagram of the structure of an air conditioner provided in an embodiment of this disclosure. Detailed Implementation

[0030] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0031] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0032] Unless otherwise stated, the term "multiple" means two or more.

[0033] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0034] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0035] The term "correspondence" can refer to an association or binding relationship. The correspondence between A and B means that there is an association or binding relationship between A and B.

[0036] In this embodiment of the disclosure, smart home appliances refer to home appliances formed by introducing microprocessors, sensor technology and network communication technology into home appliances. They have the characteristics of intelligent control, intelligent sensing and intelligent application. The operation of smart home appliances often relies on the application and processing of modern technologies such as the Internet of Things, the Internet and electronic chips. For example, smart home appliances can be connected to electronic devices to enable users to remotely control and manage smart home appliances.

[0037] In this embodiment of the disclosure, the terminal device refers to an electronic device with wireless connectivity. The terminal device can communicate with the aforementioned smart home appliances by connecting to the internet, or directly via Bluetooth, Wi-Fi, or other methods. In some embodiments, the terminal device may be, for example, a mobile device, a computer, or an in-vehicle device built into a hovercraft, or any combination thereof. Mobile devices may include, for example, mobile phones, smart home devices, wearable devices, smart mobile devices, virtual reality devices, or any combination thereof. Wearable devices may include, for example, smartwatches, smart bracelets, pedometers, etc.

[0038] This disclosure provides an air conditioner, such as... Figure 1 As shown, the air conditioner includes a refrigerant main circuit. Specifically, the refrigerant main circuit includes a compressor 101, a main condenser 102, a main throttling assembly 103, and an indoor evaporator 104.

[0039] As an optional embodiment, the air conditioner also includes a heat dissipation branch for cooling the heat-generating elements of the air conditioner. Specifically, the two ends of the heat dissipation branch are respectively connected to the two ends of the compressor 101, so that the heat dissipation branch and the main circuit are connected in parallel.

[0040] In this embodiment of the disclosure, the heating element of the air conditioner can be used to characterize electronic components that generate heat during operation, such as the computer board installed in the outdoor unit of the air conditioner.

[0041] Optionally, the heat dissipation branch includes a water-cooled condenser 105, a branch throttling assembly 106, and a heat dissipation evaporator 107 connected in sequence. Since the heat dissipation branch connects to both ends of the compressor 101, the outlet of the compressor 101 is connected to the water-cooled condenser 105, and the return port of the compressor 101 is connected to the heat dissipation evaporator 107. Specifically, the water-cooled condenser 105 dissipates heat and cools down through the condensate generated by the indoor evaporator 104, so that the high-temperature, high-pressure refrigerant discharged from the outlet of the compressor 101 is condensed via the water-cooled condenser 105.

[0042] In practical applications, the heat dissipation evaporator 107 is positioned close to the heating element. In this way, when the heating element has a heat dissipation requirement, the heat dissipation branch works, and the heat dissipation evaporator 107 can cool down the heating element to maintain its working state.

[0043] Optionally, the heat dissipation branch also includes an exhaust bypass, which is connected in parallel to the heat dissipation evaporator 107. A control valve 108 is provided on the exhaust bypass, and the on / off state of the exhaust bypass is controlled by switching the operating state of the control valve 108. Specifically, when the control valve 108 is open, the exhaust bypass is in the connected state; when the control valve 108 is closed, the exhaust bypass is in the disconnected state.

[0044] According to one aspect of the present disclosure, a method for controlling an air conditioner is provided. The air conditioner includes a heat dissipation branch for cooling the heating element of the air conditioner. The method for controlling the air conditioner includes: acquiring the return air temperature of the air conditioner's compressor and the current temperature of the heating element; and controlling the operation of the heat dissipation branch based on the return air temperature and the current temperature.

[0045] Generally, the compressor return gas temperature refers to the temperature of the refrigerant when the gaseous refrigerant re-enters the compressor. In practical applications, when the air conditioner compressor's return gas temperature is too high, the temperature of the working gas inside the compressor rises, leading to a decrease in compressor efficiency. If the compressor's return gas temperature continues to rise, the compressor will trigger its overload protection device due to the overheating, causing the air conditioner to shut down. This constitutes a compressor return gas overheating fault. Understandably, excessively high compressor return gas temperature will adversely affect the compressor's operation, causing shutdown and severely impacting its lifespan.

[0046] Combination Figure 2 As shown, the method for controlling an air conditioner provided in this embodiment may specifically include the following steps:

[0047] S10. Obtain the return air temperature of the air conditioner compressor and the current temperature of the heating element.

[0048] S20. Control the operation of the heat dissipation branch according to the return gas temperature and the current temperature.

[0049] The method for controlling an air conditioner provided in this disclosure can obtain the return gas temperature of the air conditioner compressor and the current temperature of the heating element, and control the operation of the heat dissipation branch according to the return gas temperature of the compressor and the current temperature of the heating element to adjust the return gas temperature of the compressor, thereby avoiding the compressor from overheating. In this way, even if the temperature of the heating element is high, the refrigerant temperature returning to the compressor will not be too high due to the heat dissipation branch cooling the heating element, thus improving the stability of the air conditioner operation.

[0050] Optionally, the operation of the heat dissipation branch is controlled based on the compressor's return gas temperature and the current temperature of the heating element. This includes: determining the operating status information of the heat dissipation branch based on the return gas temperature when the current temperature indicates that the heating element has a heat dissipation requirement; and controlling the operation of the heat dissipation branch according to the operating status information. Specifically, when the heating element has a heat dissipation requirement, the evaporator of the heat dissipation branch is controlled to dissipate heat and cool the heating element based on the compressor's return gas temperature. By controlling the operating status of the evaporator, the operation of the heat dissipation branch is controlled.

[0051] As an alternative embodiment, such as Figure 3As shown, step S20 may specifically include the following steps:

[0052] S21. When the current temperature indicates that the heating element has a heat dissipation requirement, determine the operating status information of the heat dissipation branch based on the return gas temperature.

[0053] S22. Control the operation of the heat dissipation branch according to the operating status information.

[0054] The method for controlling an air conditioner provided in this disclosure controls whether the evaporator of the heat dissipation branch cools the heating element when the heating element has a heat dissipation requirement, based on the return gas temperature of the compressor. By controlling the working state of the evaporator, the operation of the heat dissipation branch is controlled, thereby regulating the return gas temperature of the compressor and preventing the compressor from overheating.

[0055] In some embodiments, the heat dissipation branch includes a heat dissipation evaporator and an exhaust bypass connected in parallel with the heat dissipation evaporator. A control valve is provided on the exhaust bypass to determine the operating status information of the heat dissipation branch based on the return gas temperature. This includes: opening the control valve to make the exhaust bypass connected when the return gas temperature indicates that the compressor is in a return gas superheated state; and closing the control valve to make the exhaust bypass disconnected when the return gas temperature indicates that the compressor is not in a return gas superheated state.

[0056] Specifically, the opening and closing of the exhaust bypass can be controlled by switching the operating state of the control valve. The operating state of the control valve includes an open state and a closed state. When the control valve is open, the exhaust bypass is connected, and the refrigerant in the cooling branch will not flow through the evaporator, thus preventing the refrigerant temperature from becoming too high due to the evaporator cooling the heating elements. Conversely, when the control valve is closed, the exhaust bypass is disconnected, and the refrigerant in the cooling branch flows through the evaporator instead of the exhaust bypass, allowing the evaporator to cool the heating elements.

[0057] Optionally, the compressor being in a return gas superheated state can be determined by: obtaining the compressor's return gas temperature threshold; and determining that the compressor is in a return gas superheated state when the return gas temperature is greater than or equal to the return gas temperature threshold. The return gas temperature threshold can be determined by a factory preset method, or it can be determined based on factors such as compressor specifications and air conditioner operating status.

[0058] As an alternative embodiment, such as Figure 4 As shown, step S20 may further include the following steps:

[0059] S23. Obtain the return gas temperature threshold of the compressor.

[0060] S24. If the return gas temperature is greater than or equal to the return gas temperature threshold, the compressor is determined to be in a return gas superheated state.

[0061] S25. When the compressor is in a superheated return gas state, open the control valve.

[0062] The method for controlling an air conditioner provided in this disclosure determines that the compressor is in a return gas overheating state when the return gas temperature of the compressor is greater than or equal to a return gas temperature threshold. The control valve is then opened to connect the exhaust bypass. In this state, the refrigerant in the heat dissipation branch will not flow through the evaporator, thus preventing the refrigerant temperature from becoming too high due to the evaporator cooling the heating elements, and consequently preventing the compressor from experiencing a return gas overheating fault.

[0063] In some embodiments, the heat dissipation branch further includes a water-cooled condenser and a branch throttling component. The water-cooled condenser dissipates heat through condensate generated by the indoor evaporator of the air conditioner. The method for controlling the air conditioner further includes: obtaining the amount of condensate generated by the indoor evaporator within a preset time period; and controlling the branch throttling component based on the current temperature and the amount of condensate. The preset time period can be a preset duration prior to the current moment.

[0064] In this embodiment, the water-cooled condenser uses the condensate generated by the indoor evaporator to dissipate heat and lower its temperature, allowing the high-temperature, high-pressure refrigerant discharged from the compressor outlet to condense. Since the water-cooled condenser uses the condensate generated by the indoor evaporator for cooling, if the condensate volume generated by the indoor evaporator is less than the minimum required by the water-cooled condenser, the branch throttling component needs to be completely closed to prevent refrigerant from flowing through the heat dissipation branch, thus avoiding adverse effects on the air conditioner's operation.

[0065] As an alternative embodiment, such as Figure 5 As shown, the method for controlling an air conditioner provided in this embodiment may further include the following steps:

[0066] S30. Obtain the amount of condensate generated by the indoor evaporator within a preset time period.

[0067] S40. Control the branch throttling component according to the current temperature and condensate volume.

[0068] The method for controlling an air conditioner provided in this disclosure determines the operating state of the branch throttling assembly by measuring the current temperature of the heating element and the amount of condensate, thereby controlling the operation of the heat dissipation branch and adjusting the return gas temperature of the compressor to prevent overheating of the compressor. Furthermore, considering the amount of condensate, if the condensate produced by the indoor evaporator does not reach the minimum required amount for the water-cooled condenser, the branch throttling assembly needs to be completely closed. This also prevents overheating of the heat dissipation branch, thus avoiding adverse effects on the operation of the air conditioner.

[0069] Optionally, controlling the branch throttling component based on the current temperature and condensate flow rate includes: when the condensate flow rate is greater than a first reference flow rate, controlling the branch throttling component based on the current temperature. Specifically, controlling the branch throttling component based on the current temperature may include: increasing the opening degree of the branch throttling component when the current temperature is greater than a first temperature threshold; keeping the opening degree of the branch throttling component unchanged when the current temperature is greater than a second temperature threshold but less than or equal to the first temperature threshold; and decreasing the opening degree of the branch throttling component when the current temperature is less than or equal to the second temperature threshold.

[0070] Optionally, the branch throttling component is controlled based on the current temperature and condensate flow rate, further including: controlling the branch throttling component to close when the condensate flow rate is less than or equal to a second reference flow rate; wherein the second reference flow rate is less than a first reference flow rate. Since the water-cooled condenser uses condensate generated by the indoor evaporator for cooling, when the condensate flow rate generated by the indoor evaporator does not reach the minimum required flow rate for the water-cooled condenser, it is necessary to completely close the branch throttling component to prevent refrigerant from flowing through the heat dissipation branch, thus avoiding adverse effects on the operation of the air conditioner.

[0071] According to one aspect of the present disclosure, an apparatus for controlling an air conditioner is provided. The air conditioner includes a heat dissipation branch for cooling a heating element of the air conditioner. The apparatus for controlling the air conditioner includes an acquisition module and an execution module. The acquisition module is configured to acquire the return air temperature of the air conditioner's compressor and the current temperature of the heating element. The execution module is configured to control the operation of the heat dissipation branch based on the return air temperature and the current temperature.

[0072] Optionally, the execution module is further configured to determine the operating status information of the heat dissipation branch based on the return gas temperature when the current temperature indicates that the heat-generating element has a heat dissipation requirement; and control the operation of the heat dissipation branch according to the operating status information.

[0073] Optionally, the heat dissipation branch includes a heat dissipation evaporator and an exhaust bypass connected in parallel with the heat dissipation evaporator. A control valve is provided on the exhaust bypass. The execution module is further configured to open the control valve to make the exhaust bypass connected when the return gas temperature indicates that the compressor is in a return gas superheated state; and to close the control valve to make the exhaust bypass disconnected when the return gas temperature indicates that the compressor is not in a return gas superheated state.

[0074] Optionally, the execution module is further configured to obtain the return gas temperature threshold of the compressor; and if the return gas temperature is greater than or equal to the return gas temperature threshold, determine that the compressor is in a return gas overheating state.

[0075] In some embodiments, the heat dissipation branch further includes a water-cooled condenser and a branch throttling component. The water-cooled condenser dissipates heat through condensate generated by the indoor evaporator of the air conditioner. The device for controlling the air conditioner further includes a determining module configured to acquire the amount of condensate generated by the indoor evaporator within a preset time period and control the branch throttling component based on the current temperature and the amount of condensate.

[0076] Optionally, the determining module is further configured to control the branch throttling component based on the current temperature when the condensate volume is greater than the first reference water volume.

[0077] Optionally, the determining module is further configured to control the branch throttling component to close when the condensate volume is less than or equal to the second reference water volume; wherein the second reference water volume is less than the first reference water volume.

[0078] Combination Figure 6 As shown, this disclosure provides an apparatus 200 for controlling an air conditioner, including a processor 201 and a memory 202. Optionally, the apparatus may further include a communication interface 203 and a bus 204. The processor 201, communication interface 203, and memory 202 can communicate with each other via the bus 204. The communication interface 203 can be used for information transmission. The processor 201 can call logical instructions in the memory 202 to execute the method for controlling the air conditioner described in the above embodiment.

[0079] Furthermore, the logical instructions in the aforementioned memory 202 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium.

[0080] The memory 202, as a computer-readable storage medium, can be used to store software programs and computer-executable programs, such as program instructions / modules corresponding to the methods in the embodiments of this disclosure. The processor 201 executes functional applications and data processing by running the program instructions / modules stored in the memory 202, that is, it implements the method for controlling the air conditioner in the above embodiments.

[0081] The memory 202 may include a program storage area and a data storage area. The program storage area may store the operating system and applications required for at least one function; the data storage area may store data created based on the use of the terminal device. Furthermore, the memory 202 may include high-speed random access memory and may also include non-volatile memory.

[0082] Combination Figure 7 As shown, this disclosure provides an air conditioner 100, including: an air conditioner main body, a heat dissipation branch, and the aforementioned device 200 for controlling the air conditioner. The heat dissipation branch is used to cool the heating element of the air conditioner; the device 200 for controlling the air conditioner is installed in the air conditioner main body. The installation relationship described herein is not limited to placement inside the air conditioner, but also includes installation and connection with other components of the air conditioner, including but not limited to physical connection, electrical connection, or signal transmission connection. Those skilled in the art will understand that the device 200 for controlling the air conditioner can be adapted to any feasible air conditioner main body, thereby realizing other feasible embodiments.

[0083] The air conditioner 100 provided in this embodiment can obtain the return gas temperature of the compressor and the current temperature of the heating element, and control the operation of the heat dissipation branch according to the return gas temperature of the compressor and the current temperature of the heating element to adjust the return gas temperature of the compressor, thereby avoiding the compressor from overheating. In this way, even if the temperature of the heating element is high, the refrigerant temperature returning to the compressor will not be too high due to the heat dissipation branch cooling the heating element, thereby improving the stability of the operation of the air conditioner 100.

[0084] Optionally, the heating element of the air conditioner 100 can be used to characterize electronic components that generate heat during operation, such as the computer board installed in the outdoor unit of the air conditioner 100. The two ends of the heat dissipation branch are respectively connected to the two ends of the compressor, so that the heat dissipation branch and the main circuit are connected in parallel.

[0085] Optionally, the heat dissipation branch includes a water-cooled condenser, a branch throttling component, and a heat dissipation evaporator connected in sequence. Since the heat dissipation branch connects to both ends of the compressor, the compressor's outlet is connected to the water-cooled condenser, and the compressor's return port is connected to the heat dissipation evaporator. Specifically, the water-cooled condenser dissipates heat and cools the compressor by using the condensate produced by the indoor evaporator, so that the high-temperature, high-pressure refrigerant discharged from the compressor's outlet is condensed by the water-cooled condenser.

[0086] Optionally, the heat dissipation branch also includes an exhaust bypass, which is connected in parallel to the heat dissipation evaporator. A control valve is installed on the exhaust bypass, and the on / off state of the exhaust bypass is controlled by switching the operating state of the control valve. Specifically, opening the control valve opens the exhaust bypass; closing the control valve disconnects the exhaust bypass. In this way, by switching the operating state of the control valve, the on / off state of the exhaust bypass is controlled, thereby preventing the compressor from experiencing overheating during return gas operation.

[0087] In practical applications, the heat dissipation evaporator is placed close to the heating element. In this way, when the heating element has a heat dissipation requirement, the heat dissipation branch works, and the heat dissipation evaporator can cool down the heating element to maintain its working state.

[0088] This disclosure provides a computer-readable storage medium storing computer-executable instructions configured to perform the above-described method for controlling an air conditioner.

[0089] The aforementioned computer-readable storage medium may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0090] The technical solutions of this disclosure can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes one or more instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in this disclosure. The aforementioned storage medium can be a non-transitory storage medium, including: a USB flash drive, a portable hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and other media capable of storing program code; it can also be a transient storage medium.

[0091] The foregoing description and accompanying drawings fully illustrate embodiments of this disclosure to enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, procedural, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the terminology used in this application is for describing embodiments only and is not intended to limit the claims. As used in the description of embodiments and claims, the singular forms “a,” “an,” and “the” are intended to equally include the plural forms unless the context clearly indicates otherwise. Similarly, the term “and / or” as used in this application means including one or more of the associated listed items and all possible combinations thereof. Additionally, when used in this application, the term "comprise" and its variations "comprises" and / or "comprising" refer to the presence of stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. Without further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the process, method, or apparatus that includes said element. In this document, each embodiment may focus on the differences from other embodiments, and similar or identical parts between embodiments can be referred to mutually. For methods, products, etc., disclosed in the embodiments, if they correspond to the method section disclosed in the embodiments, the relevant parts can be referred to the description of the method section.

[0092] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the embodiments of this disclosure. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0093] The methods and products (including but not limited to devices and equipment) disclosed in the embodiments herein can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For instance, the division of units may be merely a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the shown or discussed units may be through some interfaces, and the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the units may be selected to implement this embodiment according to actual needs. Furthermore, the functional units in the embodiments of this disclosure may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0094] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to embodiments of this disclosure. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions marked in the blocks may occur in a different order than that shown in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the accompanying drawings, the operations or steps corresponding to different blocks may also occur in a different order than disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. Each block in a block diagram and / or flowchart, and combinations of blocks in a block diagram and / or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

Claims

1. A method for controlling an air conditioner, characterized in that, The air conditioner includes a heat dissipation branch connected to both ends of the compressor, which is used to cool the heating element of the air conditioner; the heat dissipation branch includes a water-cooled condenser, a branch throttling component, a heat dissipation evaporator, and an exhaust bypass connected in parallel to the heat dissipation evaporator, and a control valve is provided on the exhaust bypass; the water-cooled condenser is connected to the air outlet of the compressor, and the heat dissipation evaporator is connected to the air return port of the compressor. The method includes: Obtain the return air temperature of the air conditioner's compressor and the current temperature of the heating element; When the current temperature indicates that the heating element has a heat dissipation requirement, the operating status information of the heat dissipation branch is determined according to the return gas temperature; wherein, when the return gas temperature indicates that the compressor is in a return gas overheating state, the control valve is opened to make the exhaust bypass in a connected state; when the return gas temperature indicates that the compressor is in a non-return gas overheating state, the control valve is closed to make the exhaust bypass in a disconnected state. The operation of the heat dissipation branch is controlled according to the operating status information.

2. The method according to claim 1, characterized in that, The compressor is determined to be in a return gas superheat state by the following method: Obtain the return gas temperature threshold of the compressor; If the return gas temperature is greater than or equal to the return gas temperature threshold, the compressor is determined to be in a return gas superheated state.

3. The method according to claim 1 or 2, characterized in that, The water-cooled condenser dissipates heat through the condensate generated by the indoor evaporator of the air conditioner, and the method further includes: Obtain the amount of condensate generated by the indoor evaporator within a preset time period; The branch throttling component is controlled based on the current temperature and the amount of condensate.

4. The method according to claim 3, characterized in that, The step of controlling the branch throttling component based on the current temperature and the condensate volume includes: If the condensate volume is greater than the first reference volume, the branch throttling component is controlled according to the current temperature.

5. The method according to claim 4, characterized in that, The method of controlling the branch throttling component based on the current temperature and the condensate volume further includes: When the condensate volume is less than or equal to the second reference water volume, the branch throttling component is controlled to close. Wherein, the second reference water volume is less than the first reference water volume.

6. A device for controlling an air conditioner, comprising a processor and a memory storing program instructions, characterized in that, The processor is configured to execute, when running the program instructions, the method for controlling an air conditioner as described in any one of claims 1 to 5.

7. An air conditioner, characterized in that, include: Air conditioner main body; A heat dissipation branch is used to cool the heating elements of the air conditioner; The device for controlling an air conditioner as described in claim 6 is installed on the air conditioner body.

8. A storage medium storing program instructions, characterized in that, When the program instructions are executed, they perform the method for controlling the air conditioner as described in any one of claims 1 to 5.

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