WO2024007609A1

WO2024007609A1 - Safety early warning method and device for air conditioner, air conditioner, and storage medium

Info

Publication number: WO2024007609A1
Application number: PCT/CN2023/080219
Authority: WO
Inventors: 夏连成; 肖克强; 王玉林; 徐帆; 张恒; 宁振忠
Original assignee: 重庆海尔空调器有限公司; 青岛海尔空调器有限总公司; 青岛海尔空调电子有限公司; 海尔智家股份有限公司
Priority date: 2022-07-08
Filing date: 2023-03-08
Publication date: 2024-01-11
Also published as: CN115164383A

Abstract

A safety early warning method for an air conditioner (10), a safety early warning device (60) for the air conditioner (10), the air conditioner (10), and a storage medium, relating to the technical field of intelligent household appliances. An outdoor unit of the air conditioner (10) is provided with a flow guide device, and the flow guide device is connected to a refrigerant pipeline of the air conditioner (10). The method comprises: when the air conditioner (10) is in an operating state, acquiring pressure detection information of the refrigerant pipeline of the air conditioner (10); when the pressure detection information indicates that the pressure of the refrigerant pipeline is abnormal, acquiring the concentration of a refrigerant in an associated area; and when the concentration of the refrigerant is greater than or equal to a first reference threshold, discharging the refrigerant in the refrigerant pipeline to the flow guide device, and sending safety early warning to a user. When the concentration of the refrigerant in the associated area exceeds a preset limit, the refrigerant in the refrigerant pipeline of the air conditioner (10) is discharged to the flow guide device, and safety early warning is timely sent to the user, so that potential safety hazards caused to indoor users by the refrigerant in the refrigeration pipeline continuously leaking to the room are avoided, thereby improving the safety for the indoor users.

Description

Safety warning method and device for air conditioners, air conditioners, storage media

This application is filed based on a Chinese patent application with application number 202210801145.6 and a filing date of July 8, 2022, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby incorporated by reference into this application.

Technical field

This application relates to the technical field of smart home appliances, for example, to a safety warning method and device for air conditioners, air conditioners, and storage media.

Background technique

In recent years, with the continuous improvement of people's living standards, the requirements for the comfort of the indoor environment are getting higher and higher. In order to improve the comfort of the indoor environment, air conditioners are usually installed in homes to adjust the indoor ambient temperature and indoor ambient humidity.

Usually, the air conditioner includes connected refrigerant pipelines, and the refrigerant is encapsulated in the refrigerant pipelines. Moreover, many types of refrigerants are flammable substances. When the air conditioner is in heating operation, the surface temperature of the electric heating device equipped with it will reach the ignition point of the refrigerant. When refrigerant leakage occurs, it is difficult for users to detect it, which brings safety risks to users that cannot be ignored when using air conditioners.

Contents of the invention

In order to provide a basic understanding of some aspects of the disclosed embodiments, a simplified summary is provided below. This summary is not intended to be a general review, nor is it intended to identify key/important elements or delineate the scope of the embodiments, but is intended to serve as a prelude to the detailed description that follows.

Embodiments of the present disclosure provide a safety warning method and device for air conditioners, air conditioners, and storage media to discharge the refrigerant in the refrigerant pipeline of the air conditioner to a drainage device when the refrigerant concentration in the associated area exceeds a preset limit. It also issues safety warnings to users to reduce users from performing dangerous operations when refrigerant leaks, and improves the safety of indoor users.

In some embodiments, the safety early warning method for air conditioners includes: the outdoor unit of the air conditioner is equipped with a drainage device, and the drainage device is connected to the refrigerant pipeline of the air conditioner; the safety early warning method for air conditioners includes: when the air conditioner is running state, obtain the pressure detection information of the refrigerant pipeline of the air conditioner; when the pressure detection information indicates that the refrigerant pipeline pressure is abnormal, obtain the refrigerant concentration of the associated area; when the refrigerant concentration is greater than or equal to the first reference threshold , discharge the refrigerant in the refrigerant pipeline to the drainage device, and issue a safety warning to the user.

In some embodiments, the drainage device includes a drainage pipeline, a vacuum tank, and a solenoid valve disposed on the drainage pipeline. The drainage pipeline connects the vacuum tank to the refrigerant pipeline of the air conditioner; drains the refrigerant in the refrigerant pipeline to the drainage device, including: controlling the solenoid valve to open so that the refrigerant in the refrigerant pipeline flows to inside the vacuum tank.

In some embodiments, the drainage device includes a bypass pipe connected in parallel to the outdoor heat exchange pipe section of the air conditioner and a liquid storage tank disposed in the bypass pipe, wherein the electronic expansion valve is disposed in the outdoor heat exchange pipe section; the refrigerant is The refrigerant in the pipeline is discharged to the drainage device, which includes: controlling the opening of the electronic expansion valve to fully close, and controlling the opening of the liquid storage tank, so that the refrigerant in the refrigerant pipeline flows to the liquid storage tank through the bypass pipe.

In some embodiments, the pressure detection value includes the pressure detection value of the evaporator of the air conditioner and/or the pressure detection value of the condenser; whether there is a pressure abnormality in the refrigerant pipeline is determined in the following manner: when the pressure detection value of the evaporator is greater than or If it is equal to the reference evaporation pressure and/or the pressure detection value of the condenser is greater than or equal to the reference condensation pressure, it is determined that the refrigerant pipeline pressure is abnormal.

In some embodiments, the safety warning method for air conditioners also includes: when the refrigerant concentration is greater than or equal to a second reference threshold, controlling the air conditioner to stop running and maintaining the shutdown state for a safe period of time; wherein the second reference threshold is less than the first reference threshold.

In some embodiments, the safety warning device for air conditioners includes a processor and a memory storing program instructions. When the processor runs the program instructions, it executes the above safety warning method for air conditioners.

In some embodiments, the air conditioner includes a drainage device connected to a refrigerant pipeline of the air conditioner and a safety warning device for the air conditioner as described above.

In some embodiments, the drainage device includes a vacuum tank and a solenoid valve; the vacuum tank is located in the outdoor unit of the air conditioner, and is connected to the refrigerant pipeline of the air conditioner through a drainage pipeline; the solenoid valve is disposed on the drainage pipeline, and the solenoid valve Used to control the opening and closing of the drainage pipeline.

In some embodiments, the drainage device includes a bypass pipeline and a liquid storage tank; the bypass pipeline is connected in parallel to the outdoor heat exchange pipe section of the air conditioner; the liquid storage tank is provided in the bypass pipeline, and the liquid storage tank is used to store the components from the air conditioner. The refrigerant discharged from the refrigerant pipeline; wherein, the electronic expansion valve is installed in the outdoor heat exchange pipe section.

In some embodiments, the storage medium stores program instructions, and when the program instructions are run, the above-mentioned safety warning method for air conditioning is executed.

The safety warning method and device for air conditioners, air conditioners, and storage media provided by the embodiments of the present disclosure can achieve the following technical effects:

The air conditioner is connected to the refrigerant pipeline by adding a drainage device. When there is abnormal pressure in the refrigerant pipeline, the drainage device is controlled according to the refrigerant concentration in the relevant area. When the refrigerant concentration in the relevant area exceeds the preset limit, the cooling of the air conditioner is The refrigerant in the refrigeration pipeline is discharged to the drainage device and a safety warning is issued to the user; thereby preventing the refrigerant in the refrigeration pipeline from continuously leaking indoors and causing safety hazards to indoor users. In addition, the air conditioner is draining the refrigerant pipeline to the drainage device. While removing the refrigerant, it also issues safety warnings to users in a timely manner to reduce users from performing dangerous operations when refrigerant leaks and improve the safety of indoor users.

The above general description and the following description are exemplary and explanatory only and are not intended to limit the application.

Description of the drawings

One or more embodiments are exemplified by corresponding drawings. These exemplary descriptions and drawings do not constitute limitations to the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings are not limited to scale and in which:

Figure 1 is a schematic diagram of a safety warning method for air conditioning provided by an embodiment of the present disclosure;

Figure 2 is a schematic diagram of another safety warning method for air conditioning provided by an embodiment of the present disclosure;

Figure 3 is a schematic diagram of another safety warning method for air conditioning provided by an embodiment of the present disclosure;

Figure 4 is a schematic diagram of another safety warning method for air conditioning provided by an embodiment of the present disclosure;

Figure 5 is a schematic diagram of another safety warning method for air conditioning provided by an embodiment of the present disclosure;

Figure 6 is a schematic diagram of a safety warning device for air conditioning provided by an embodiment of the present disclosure;

Figure 7 is a schematic diagram of an air conditioner provided by an embodiment of the present disclosure.

Detailed ways

In order to understand the characteristics and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. The attached drawings are for reference only and are not intended to limit the embodiments of the present disclosure. In the following technical description, for convenience of explanation, multiple details are provided to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown simplified to simplify the drawings.

The terms "first", "second", etc. in the description and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that data so used are interchangeable under appropriate circumstances for the purposes of the embodiments of the disclosure described herein. Furthermore, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

Unless otherwise stated, the term "plurality" means two or more.

In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an "or" relationship. For example, A/B means: A or B.

The term "and/or" is an association relationship describing objects, indicating that three relationships can exist. For example, A and/or B means: A or B, or A and B.

The term "correspondence" can refer to an association relationship or binding relationship. The correspondence between A and B refers to the relationship between A and B. It is an association relationship or binding relationship.

In the embodiments of the present disclosure, smart home appliances refer to home appliances that are formed by introducing microprocessors, sensor technology, and network communication technology into home appliances. They have the characteristics of intelligent control, smart perception, and smart applications. The operation process of smart home appliances often Relying 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.

In the embodiment of the present disclosure, the terminal device refers to an electronic device with a wireless connection function. The terminal device can communicate with the above smart home appliances by connecting to the Internet, or can directly communicate with the above smart home appliances through Bluetooth, wifi, etc. Make a communication connection. In some embodiments, the terminal device is, for example, a mobile device, a computer, or a vehicle-mounted device built into a floating vehicle, or any combination thereof. Mobile devices may include, for example, mobile phones, smart home devices, wearable devices, smart mobile devices, virtual reality devices, etc., or any combination thereof. Wearable devices may include, for example, smart watches, smart bracelets, pedometers, etc.

Embodiments of the present disclosure provide an air conditioner, which is configured with a refrigerant detection module. The refrigerant detection module is arranged in a relevant area of the air conditioner and is configured to detect the refrigerant concentration in the relevant area. This enables the air conditioner to make subsequent combustion risk judgments based on the refrigerant concentration in the relevant area, providing an information basis for air conditioner safety warnings.

Embodiments of the present disclosure provide an air conditioner. The outdoor unit of the air conditioner is equipped with a drainage device, and the drainage device is connected to the refrigerant pipeline of the air conditioner. The drainage device is arranged on the refrigerant pipeline of the air conditioner and is used to discharge the refrigerant in the refrigerant pipeline to the drainage device when refrigerant leakage occurs in the refrigerant pipeline; that is, to control the air conditioner to drain the refrigerant pipeline to prevent The refrigerant in the refrigerant pipeline further leaks, causing safety hazards to users of air conditioners.

In one example, the drainage device includes a vacuum tank and a solenoid valve; the vacuum tank is located in the outdoor unit of the air conditioner, and is connected to the refrigerant pipeline of the air conditioner through a drainage pipeline; the solenoid valve is disposed on the drainage pipeline, and the solenoid valve Used to control the opening and closing of the drainage pipeline. In this way, by controlling the solenoid valve, the drainage device can be controlled; when the refrigerant pipeline needs to be emptied, the solenoid valve is controlled to open so that the drainage pipeline is connected. Driven by the vacuum tank, the refrigerant pipeline The refrigerant enters the vacuum tank through the drainage pipe.

In another example, the drainage device includes a bypass pipeline and a liquid storage tank; the bypass pipeline is connected in parallel to the outdoor heat exchange pipe section of the air conditioner; the liquid storage tank is provided in the bypass pipeline, and the liquid storage tank is used to store the The refrigerant discharged from the refrigerant pipeline of the air conditioner; the electronic expansion valve is installed in the outdoor heat exchange pipe section. In this way, the bypass pipe is connected in parallel to the outdoor heat exchange pipe section, and the outdoor heat exchange pipe section is equipped with an outdoor heat exchanger and an electronic expansion valve; when it is necessary to drain the refrigerant pipeline, the opening of the electronic expansion valve can be controlled by degree, preventing the refrigerant from flowing through the outdoor heat exchange pipe section and flowing to its parallel bypass pipe, and then collecting the refrigerant flowing through the bypass pipe through the liquid storage tank, thereby emptying the refrigerant in the refrigerant pipe. Prevent further leakage of refrigerant.

Optionally, the air conditioner is configured with a refrigerant detection module. The refrigerant detection module is installed in the relevant area of the air conditioner and is configured Set to detect the refrigerant concentration in the associated area. This enables the air conditioner to control the drainage device based on the refrigerant concentration in the relevant area, so that all the refrigerant in the refrigerant pipeline is discharged into the drainage device, thereby avoiding refrigerant leakage in the air conditioner and causing safety hazards to indoor users.

In the embodiment of the present disclosure, the refrigerant pipeline of the air conditioner is filled with refrigerant R290. The refrigerant R290 is a flammable refrigerant. In the case of refrigerant leakage, high temperatures may cause a burning hazard. Correspondingly, the semiconductor gas sensor in the refrigerant detection module can also be selected as a model specially used to detect refrigerant R290.

The safety warning method for air conditioners provided by embodiments of the present disclosure includes: when the air conditioner is in operation, obtaining pressure detection information of the refrigerant pipeline of the air conditioner; when the pressure detection information indicates that the pressure of the refrigerant pipeline is abnormal, obtaining The refrigerant concentration in the associated area; when the refrigerant concentration is greater than or equal to the first reference threshold, the refrigerant in the refrigerant pipeline is discharged to the drainage device and a safety warning is issued to the user.

Optionally, the execution subject that performs the above steps may be the control module of the air conditioner; specifically, the control module obtains the pressure detection information of the refrigerant pipeline of the air conditioner when the air conditioner is in operation; the control module detects the refrigerant when the pressure detection information indicates When the pipeline pressure is abnormal, the refrigerant concentration in the associated area is obtained; when the refrigerant concentration is greater than or equal to the first reference threshold, the control module discharges the refrigerant in the refrigerant pipeline to the drainage device and issues a safety warning to the user .

Optionally, the execution subject that performs the above steps may be a server associated with the air conditioner. The server may be a server deployed in the cloud, or the server may be a separately configured smart gateway. Among them, the server has a communication connection with the air conditioner. Therefore, the server can realize information transmission with the air conditioner. Specifically, when the air conditioner is running, the server obtains the pressure detection information of the refrigerant pipeline of the air conditioner; when the pressure detection information indicates that the refrigerant pipeline pressure is abnormal, the server obtains the refrigerant concentration of the associated area; the server When the refrigerant concentration is greater than or equal to the first reference threshold, a corresponding control command is issued to the air conditioner to discharge the refrigerant in the refrigerant pipeline to the drainage device, and a safety warning is issued to the user.

Based on the above related structural design of the air conditioner, embodiments of the present disclosure provide a safety warning method for the air conditioner. As shown in Figure 1, the safety warning method for air conditioning includes:

S01. When the air conditioner is running, obtain the pressure detection information of the refrigerant pipeline of the air conditioner.

S02. When the pressure detection information indicates that the refrigerant pipeline pressure is abnormal, obtain the refrigerant concentration in the relevant area.

S03. When the refrigerant concentration is greater than or equal to the first reference threshold, discharge the refrigerant in the refrigerant pipeline to the drainage device and issue a safety warning to the user.

Using the safety early warning method for air conditioners provided by embodiments of the present disclosure, the air conditioner is connected to the refrigerant pipeline by adding a drainage device. When there is abnormal pressure in the refrigerant pipeline, the drainage device is controlled according to the refrigerant concentration in the associated area, and When the refrigerant concentration in the relevant area exceeds the preset limit, the refrigerant in the refrigerant pipeline of the air conditioner will be discharged to the drainage device, and a safety warning will be issued to the user; thereby preventing the refrigerant in the refrigeration pipeline from continuing to leak indoors and causing consequences to indoor users. Security risks. In addition, while the air conditioner empties the refrigerant in the refrigerant pipeline to the drainage device, it promptly issues a safety warning to the user. Alarms are provided to reduce users from performing dangerous operations when refrigerant leaks and improve the safety of indoor users.

Optionally, the drainage device includes a drainage pipeline, a vacuum tank and a solenoid valve arranged in the drainage pipeline. The vacuum tank is connected to the refrigerant pipeline of the air conditioner through the drainage pipeline; the refrigerant in the refrigerant pipeline is discharged to the drainage pipeline. The device includes: controlling the solenoid valve to open so that the refrigerant in the refrigerant pipeline flows into the vacuum tank through the drainage pipeline.

In this way, by controlling the solenoid valve, the drainage device can be controlled; when the refrigerant pipeline needs to be emptied, the solenoid valve is controlled to open so that the drainage pipeline is connected. Driven by the vacuum tank, the refrigerant pipeline The refrigerant enters the vacuum tank through the drainage pipe.

As shown in FIG. 2 , an embodiment of the present disclosure provides another safety warning method for air conditioners, including:

S04. Control the solenoid valve to open so that the refrigerant in the refrigerant pipeline flows into the vacuum tank through the drainage pipeline.

Using the safety early warning method for air conditioners provided by the embodiments of the present disclosure, the air conditioner adds a drainage device including a vacuum tank and a solenoid valve; when there is abnormal pressure in the refrigerant pipeline, the drainage device is controlled according to the refrigerant concentration in the associated area, And when the refrigerant concentration in the relevant area exceeds the preset limit, the refrigerant in the refrigerant pipeline of the air conditioner will be discharged to the drainage device, and a safety warning will be issued to the user; thereby preventing the refrigerant in the refrigeration pipeline from continuously leaking indoors and injuring indoor users. causing safety hazards. In addition, while the air conditioner empties the refrigerant in the refrigerant pipeline to the drainage device, it also issues safety warnings to users in a timely manner, reducing users from performing related dangerous operations when refrigerant leaks, and improving the safety of indoor users.

Optionally, the drainage device includes a bypass pipeline connected in parallel to the outdoor heat exchange pipe section of the air conditioner and a liquid storage tank provided in the bypass pipeline, wherein the electronic expansion valve is provided in the outdoor heat exchange pipe section; connect the refrigerant pipeline to The refrigerant in the refrigerant pipe is discharged to the drainage device, which includes: controlling the opening of the electronic expansion valve to fully close, and controlling the opening of the liquid storage tank so that the refrigerant in the refrigerant pipeline flows to the liquid storage tank through the bypass pipe.

In this way, the bypass pipe is connected in parallel to the outdoor heat exchange pipe section, and the outdoor heat exchange pipe section is equipped with an outdoor heat exchanger and an electronic expansion valve; when it is necessary to drain the refrigerant pipeline, the opening of the electronic expansion valve can be controlled by degree, preventing the refrigerant from flowing through the outdoor heat exchange pipe section and flowing to its parallel bypass pipe, and then collecting the refrigerant flowing through the bypass pipe through the liquid storage tank, thereby emptying the refrigerant in the refrigerant pipe. Prevent further leakage of refrigerant.

Optionally, the pressure detection value includes the pressure detection value of the evaporator of the air conditioner and/or the pressure detection value of the condenser; determine whether there is a pressure abnormality in the refrigerant pipeline in the following manner: when the pressure detection value of the evaporator is greater than or equal to the reference If the evaporation pressure and/or the pressure detection value of the condenser is greater than or equal to the reference condensation pressure, it is determined that the refrigerant pipeline pressure is abnormal. Among them, the values of the reference evaporation pressure and the reference condensation pressure are selected according to the pressure detection value of the evaporator.

In the embodiment of the present disclosure, the pressure detection value of the evaporator may include a pressure value at both ends of the evaporator, a pressure value in the middle of the evaporator, or a pressure difference value at both ends of the evaporator. The pressure detection value of the condenser can include the pressure value at both ends of the condenser, The pressure value in the middle of the condenser or the pressure difference at both ends of the condenser.

As shown in FIG. 3 , an embodiment of the present disclosure provides another safety warning method for air conditioners, including:

S11. Detect the pressure detection values at both ends of the evaporator, and calculate the difference between the pressure detection values at both ends.

S12. When the difference between the pressure detection values at both ends of the evaporator is greater than the reference evaporation difference, it is determined that the refrigerant pipeline pressure is abnormal.

In this way, when the difference between the pressure detection values at both ends of the evaporator is greater than the reference evaporation difference, it is determined that the refrigerant pipeline pressure is abnormal, and then the drainage device is controlled according to the refrigerant concentration in the associated area, and when the refrigerant concentration in the associated area exceeds the preset When the limit is reached, the refrigerant in the refrigerant pipeline of the air conditioner is discharged to the drainage device, and a safety warning is issued to the user; thereby preventing the refrigerant in the refrigeration pipeline from continuing to leak indoors and causing safety hazards to indoor users. In addition, while the air conditioner empties the refrigerant in the refrigerant pipeline to the drainage device, it also issues safety warnings to users in a timely manner, reducing users from performing related dangerous operations when refrigerant leaks, and improving the safety of indoor users.

As shown in FIG. 4 , an embodiment of the present disclosure provides another safety warning method for air conditioners, including:

S21. Detect the pressure detection values at both ends of the condenser, and calculate the difference between the pressure detection values at both ends.

S22. When the difference between the pressure detection values at both ends of the condenser is greater than the reference condensation difference, it is determined that the refrigerant pipeline pressure is abnormal.

In this way, when the difference between the pressure detection values at both ends of the condenser is greater than the reference condensation difference, it is determined that the refrigerant pipeline pressure is abnormal, and then the drainage device is controlled according to the refrigerant concentration in the associated area, and when the refrigerant concentration in the associated area exceeds the preset When the limit is reached, the refrigerant in the refrigerant pipeline of the air conditioner is discharged to the drainage device, and a safety warning is issued to the user; thereby preventing the refrigerant in the refrigeration pipeline from continuing to leak indoors and causing safety hazards to indoor users. In addition, while the air conditioner empties the refrigerant in the refrigerant pipeline to the drainage device, it also issues safety warnings to users in a timely manner, reducing users from performing related dangerous operations when refrigerant leaks, and improving the safety of indoor users.

In practical applications, the pressure detection value can be judged by selecting the relevant pressure detection value of the evaporator alone, or the relevant pressure detection value of the condenser. It can also be judged by the relevant pressure detection value of the evaporator or the relevant pressure detection value of the condenser. If any of the pressure detection values is abnormal, it is determined that the refrigerant pipeline pressure is abnormal.

Here, the selection of the first reference threshold and the selection of the second reference threshold may be related to the type of refrigerant and its corresponding auto-ignition concentration threshold. Taking the flammable refrigerant R290 as an example, taking the auto-ignition concentration threshold of the refrigerant R290 as the benchmark, the first reference threshold and the second reference threshold may be different proportions of the auto-ignition concentration threshold. The first reference threshold may be selected within the range of 45% to 60% of the auto-ignition concentration threshold; the second reference threshold may be selected within the range of 25% to 45% of the auto-ignition concentration threshold.

As shown in FIG. 5 , an embodiment of the present disclosure provides another safety warning method for air conditioners, including:

S05. When the refrigerant concentration is greater than or equal to the second reference threshold, control the air conditioner to stop running and maintain the shutdown state for a safe period of time.

In this way, selecting a second reference threshold that is smaller than the first reference threshold can improve the sensitivity of the air conditioner to refrigerant leakage detection and further ensure the safety of indoor users. At the same time, in order to avoid the inconvenience caused to users due to misdetection of the air conditioner, the method of controlling the compressor of the air conditioner to stop for a preset safe time is used as a solution, taking into account the user's safety and the convenience of using the air conditioner.

As shown in FIG. 6 , an embodiment of the present disclosure provides a safety warning device 60 for air conditioning, including a processor 100 and a memory 101 . Optionally, the device 60 may also include a communication interface (Communication Interface) 102 and a bus 103. Among them, the processor 100, the communication interface 102, and the memory 101 can communicate with each other through the bus 103. Communication interface 102 may be used for information transmission. The processor 100 can call logical instructions in the memory 101 to execute the safety warning method for air conditioning in the above embodiment.

In addition, the above-mentioned logical instructions in the memory 101 can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent product.

As a computer-readable storage medium, the memory 101 can be used to store software programs, computer-executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 100 executes program instructions/modules stored in the memory 101 to execute functional applications and data processing, that is, to implement the safety warning method for air conditioning in the above embodiment.

The memory 101 may include a stored program area and a stored data area, wherein the stored program area may store an operating system and at least one application program required for a function; the stored data area may store data created according to the use of the terminal device, etc. In addition, the memory 101 may include a high-speed random access memory and may also include a non-volatile memory.

An embodiment of the present disclosure provides an air conditioner, which includes a drainage device connected to a refrigerant pipeline of the air conditioner and the above-mentioned safety warning device for the air conditioner.

Using the air conditioner provided by the embodiment of the present disclosure, by adding a drainage device connected to the refrigerant pipeline, when there is abnormal pressure in the refrigerant pipeline, the drainage device is controlled according to the refrigerant concentration in the associated area, and when the refrigerant concentration in the associated area exceeds the preset When the limit is set, the refrigerant in the refrigerant pipeline of the air conditioner will be discharged to the drainage device, and a safety warning will be issued to the user; thereby preventing the refrigerant in the refrigeration pipeline from continuously leaking indoors and causing safety hazards to indoor users. In addition, while the air conditioner empties the refrigerant in the refrigerant pipeline to the drainage device, it also issues safety warnings to users in a timely manner, reducing users from performing related dangerous operations when refrigerant leaks, and improving the safety of indoor users.

In some embodiments, the drainage device includes a vacuum tank and a solenoid valve; the vacuum tank is located in the outdoor unit of the air conditioner. The drainage pipeline connects the vacuum tank to the refrigerant pipeline of the air conditioner; the solenoid valve is set in the drainage pipeline, and the solenoid valve is used to control the opening and closing of the drainage pipeline.

In other embodiments, the drainage device includes a bypass pipeline and a liquid storage tank; the bypass pipeline is connected in parallel to the outdoor heat exchange pipe section of the air conditioner; the liquid storage tank is provided in the bypass pipeline, and the liquid storage tank is used to store the The refrigerant discharged from the refrigerant pipeline of the air conditioner; the electronic expansion valve is installed in the outdoor heat exchange pipe section.

As shown in FIG. 7 , an embodiment of the present disclosure provides an air conditioner 10 including the above-mentioned safety warning device 60 for air conditioners.

The air conditioner 10 in the embodiment of the present disclosure also includes: an air conditioner main body, and the above-mentioned safety warning device 60 for the air conditioner. The safety warning device 60 for the air conditioner is installed on the air conditioner main body. The installation relationship described here is not limited to placement inside the air conditioner, but also includes installation connections with other components of the air conditioner, including but not limited to physical connections, electrical connections, or signal transmission connections. Those skilled in the art can understand that the safety warning device 60 for air conditioning can be adapted to a feasible air conditioning body, thereby realizing other feasible embodiments.

Embodiments of the present disclosure provide a computer-readable storage medium that stores computer-executable instructions, and the computer-executable instructions are configured to execute the above-mentioned safety warning method for air conditioning.

Embodiments of the present disclosure provide a computer program product. The computer program product includes a computer program stored on a computer-readable storage medium. The computer program includes program instructions. When the program instructions are executed by a computer, the The computer executes the above safety warning method for air conditioners.

The above-mentioned computer-readable storage medium may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

An embodiment of the present disclosure provides a computer program that, when executed by a computer, causes the computer to implement the above safety warning method for air conditioning.

The technical solution of the embodiments of the present disclosure may be embodied in the form of a software product. The computer software product is stored in a storage medium and includes one or more instructions to enable a computer device (which may be a personal computer, a server, or a network equipment, etc.) to perform all or part of the steps of the method described in the embodiments of the present disclosure. The aforementioned storage medium The media can be non-transitory storage media, including: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk, etc., which can store programs. The medium of code can also be a temporary storage medium.

The foregoing description and drawings illustrate embodiments of the disclosure sufficiently to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples represent only possible variations. Unless explicitly required, individual components and features are optional and the order of operations may vary. Portions and features of some embodiments may be included in or substituted for those of other embodiments. Furthermore, the words used in this application are used only to describe the embodiments and not to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. . Similarly, the term "and/or" as used in this application is meant to encompass any and all possible combinations of one or more of the associated listed items. In addition, when used in this application, the term "comprise" and its variations "comprises" and/or "comprising" etc. refer to stated features, integers, steps, operations, elements, and/or The presence of a component does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and/or groupings of these. Without further limitation, an element defined by the statement "comprises a..." does not exclude the presence of additional identical elements in a process, method or apparatus including the stated element. In this article, each embodiment may focus on its differences from other embodiments, and the same and similar parts among various embodiments may be referred to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiment, then the relevant parts can be referred to the description of the method part.

Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented with electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software may depend on the specific application and design constraints of the technical solution. The skilled person may use different methods to implement the described functionality for each specific application, but such implementations should not be considered to be beyond the scope of the disclosed embodiments. The skilled person can clearly understand that for the convenience and simplicity of description, 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 described again here.

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

The flowcharts and block diagrams in the Figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code that contains one or more components for implementing the specified logical function(s). Executable instructions. In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two consecutive blocks may actually execute substantially in parallel, or they may sometimes execute in the reverse order, depending on the functionality involved. In the descriptions corresponding to the flowcharts and block diagrams in the accompanying drawings, operations or steps corresponding to different blocks may also occur in a sequence different from that disclosed in the description, and sometimes there is no specific distinction between different operations or steps. order. For example, two consecutive operations or steps may actually be performed substantially in parallel, or they may sometimes be performed in reverse order, depending on the functionality involved. Each block in the block diagram and/or flowchart illustration, and combinations of blocks in the block diagram and/or flowchart illustration, may be implemented by special purpose hardware-based systems that perform the specified functions or actions, or may be implemented using special purpose hardware implemented in combination with computer instructions.

Claims

A safety warning method for air conditioners, characterized in that the outdoor unit of the air conditioner is equipped with a drainage device, and the drainage device is connected to the refrigerant pipeline of the air conditioner;

The security warning methods include:

When the air conditioner is in operation, obtain the pressure detection information of the refrigerant pipeline of the air conditioner;

When the pressure detection information indicates that the refrigerant pipeline pressure is abnormal, obtain the refrigerant concentration in the associated area;

When the refrigerant concentration is greater than or equal to the first reference threshold, the refrigerant in the refrigerant pipeline is discharged to the drainage device, and a safety warning is issued to the user.
The safety early warning method according to claim 1, characterized in that the drainage device includes a drainage pipeline, a vacuum tank and a solenoid valve arranged in the drainage pipeline, and the vacuum tank is connected to the drainage pipeline through the drainage pipeline. On the refrigerant pipeline of the air conditioner;

Discharging the refrigerant in the refrigerant pipeline to the drainage device includes:

The solenoid valve is controlled to open so that the refrigerant in the refrigerant pipeline flows into the vacuum tank through the drainage pipeline.
The safety warning method according to claim 1 or 2, characterized in that the drainage device includes a bypass pipeline connected in parallel to the outdoor heat exchange pipe section of the air conditioner and a liquid storage provided in the bypass pipeline. A tank, wherein the electronic expansion valve is provided in the outdoor heat exchange pipe section;

Discharging the refrigerant in the refrigerant pipeline to the drainage device includes:

The opening of the electronic expansion valve is controlled to be fully closed, and the liquid storage tank is controlled to open, so that the refrigerant in the refrigerant pipeline flows into the liquid storage tank through the bypass pipeline.
The safety warning method according to any one of claims 1 to 3, wherein the pressure detection value includes the pressure detection value of the evaporator and/or the pressure detection value of the condenser of the air conditioner;

Determine whether there is any pressure abnormality in the refrigerant pipeline through the following methods:

When the pressure detection value of the evaporator is greater than or equal to the reference evaporation pressure and/or the pressure detection value of the condenser is greater than or equal to the reference condensation pressure, it is determined that the refrigerant pipeline pressure is abnormal.
The security early warning method according to any one of claims 1 to 4, further comprising:

When the refrigerant concentration is greater than or equal to the second reference threshold, control the air conditioner to stop operating and maintain the shutdown state for a safe period of time;

Wherein, the second reference threshold is smaller than the first reference threshold.
A safety warning device for air conditioners, including a processor and a memory storing program instructions, which is characterized by The feature is that the processor is configured to execute the safety warning method for air conditioning according to any one of claims 1 to 5 when executing the program instructions.
An air conditioner, characterized by including:

A drainage device connected to the refrigerant pipeline of the air conditioner;

The safety warning device for air conditioning according to claim 6.
The air conditioner according to claim 7, characterized in that the drainage device includes:

A vacuum tank located in the outdoor unit of the air conditioner and connected to the refrigerant pipeline of the air conditioner through a drainage pipeline;

A solenoid valve is provided on the drainage pipeline and is used to control the opening and closing of the drainage pipeline.
The air conditioner according to claim 7, characterized in that the drainage device includes:

A bypass pipe is connected in parallel to the outdoor heat exchange pipe section of the air conditioner;

A liquid storage tank is provided in the bypass pipeline and is used to store the refrigerant discharged from the refrigerant pipeline of the air conditioner;

Wherein, an electronic expansion valve is provided in the outdoor heat exchange pipe section.
A storage medium stores program instructions, characterized in that, when the program instructions are running, the safety warning method for air conditioning according to any one of claims 1 to 5 is executed.
A computer program, when the computer program is executed by a computer, causes the computer to implement the safety warning method for air conditioning according to any one of claims 1 to 5.
A computer program product. The computer program product includes computer instructions stored on a computer-readable storage medium. When the program instructions are executed by a computer, the computer implements the method described in any one of claims 1 to 5. Safety warning method for air conditioners.