Refrigerator, control method and device thereof and storage medium

Abstract

The invention provides a refrigerator, a control method and device of the refrigerator and a storage medium. The refrigerator comprises a gas density sensor, and the gas density sensor is arranged in the bottom area of the refrigerator; when the refrigerant leaks, the refrigerant leaks to the bottom area; the control method comprises the following steps: acquiring the gas density of the bottom area; and if the gas density is larger than a density preset value or the rising proportion of the gas density relative to the air density is larger than a preset proportion, an alarm device of the refrigerator is controlled to give an alarm and / or the refrigerator is controlled to cut off a power supply main power source.

Description

Technical Field

[0001] The present application relates to the technical field of refrigerators, and in particular to a refrigerator and a control method, device and storage medium thereof. Background Art

[0002] Refrigerators are common household appliances in family life. Refrigerants are an important carrier for refrigerators to realize their refrigeration function. At the same time, refrigerants are also flammable and explosive substances at room temperature. As the functions of refrigerators are increasingly improved, the number of refrigerant circulation pipelines has increased, causing the risk of refrigerant leakage to increase. Once the refrigerant leaks, it is easy to cause a safety accident in the refrigerator. How to effectively detect and control refrigerant leakage is a technical problem that needs to be solved urgently in this field. Summary of the invention

[0003] The present application provides a refrigerator and a control method, device and storage medium thereof, aiming to effectively detect and control refrigerant leakage.

[0004] In a first aspect, the present application provides a control method for a refrigerator, the refrigerator comprising a gas density sensor, the gas density sensor being disposed in a bottom area of ​​the refrigerator; wherein when a refrigerant leaks, the refrigerant leaks to the bottom area; the control method comprises:

[0005] Obtaining the gas density of the bottom area;

[0006] If the gas density is greater than a preset density value or the increase ratio of the gas density to the air density is greater than a preset ratio, the alarm device of the refrigerator is controlled to alarm and / or the refrigerator is controlled to cut off the main power supply; wherein the preset density value is greater than the air density.

[0007] Optionally, if the gas density rises to a preset value or a ratio of the gas density increase compared to the air density, controlling an alarm device of the refrigerator to sound an alarm and / or controlling the refrigerator to cut off the main power supply includes:

[0008] Obtaining a duration in which the gas density is greater than a preset density value or a rise ratio of the gas density to the air density is greater than a preset ratio;

[0009] If the duration is less than the preset time, only the alarm device of the refrigerator is controlled to sound an alarm;

[0010] If the duration is greater than the preset time, the alarm device of the refrigerator is controlled to sound an alarm, and the refrigerator is controlled to cut off the main power supply.

[0011] Optionally, the alarm of the alarm device controlling the refrigerator includes:

[0012] Outputting situation prompt information to an electronic device connected to the refrigerator via a network module; the situation prompt information includes at least one of the gas density, the rising ratio, and the execution information of the refrigerator.

[0013] Optionally, the control method further includes:

[0014] Obtaining the ambient temperature and atmospheric pressure of the environment where the refrigerator is located;

[0015] If the gas density is greater than a preset density value or the ratio of the increase of the gas density to the air density is greater than a preset ratio, controlling the alarm device of the refrigerator to alarm and / or controlling the refrigerator to cut off the main power supply includes:

[0016] According to the ambient temperature and the atmospheric pressure, modify the preset density value; and / or

[0017] Correcting air density according to the ambient temperature and the atmospheric pressure;

[0018] If the gas density is greater than the corrected density preset value or the increase ratio compared to the corrected air density is greater than the preset ratio, the alarm device of the refrigerator is controlled to alarm and / or the refrigerator is controlled to cut off the main power supply.

[0019] Optionally, the density preset value includes a first density preset value and a second density preset value; the preset ratio includes a first preset ratio and a second preset ratio; the first density preset value is greater than the air density and less than the second density preset value; the first preset ratio is less than the second preset ratio;

[0020] If the gas density is greater than a preset density value or the ratio of the increase of the gas density to the air density is greater than a preset ratio, controlling the alarm device of the refrigerator to alarm and / or controlling the refrigerator to cut off the main power supply includes:

[0021] If the gas density is less than the second density preset value and greater than the first density preset value, or the increase ratio of the gas density compared to the air density is greater than the first preset ratio and less than the second preset ratio, the alarm device is controlled to output a first alarm message;

[0022] If the gas density is greater than the second density preset value, or the increase ratio of the gas density compared to the air density is greater than the second preset ratio, the alarm device is controlled to output a second alarm message or the refrigerator is controlled to cut off the main power supply.

[0023] Optionally, the gas density sensor is arranged away from a heat source of the refrigerator; the heat source includes a compressor and a condenser.

[0024] In a second aspect, the present application further proposes a control device for a refrigerator, the refrigerator comprising a gas density sensor, the gas density sensor being arranged in a bottom area of ​​the refrigerator; wherein, when the refrigerant leaks, the refrigerant leaks to the bottom area; the control device comprises:

[0025] An acquisition module configured to acquire the gas density of the bottom area;

[0026] The control module controls the alarm device of the refrigerator to alarm and / or controls the refrigerator to cut off the main power supply if the gas density is greater than a preset density value or the increase ratio of the gas density compared to the air density is greater than a preset ratio.

[0027] In a third aspect, the present application further proposes a refrigerator, comprising:

[0028] a gas density sensor, the gas density sensor being disposed in a bottom area of ​​the refrigerator; wherein, when refrigerant leaks, the refrigerant leaks to the bottom area; and

[0029] A controller is configured to execute the control method of the refrigerator as described above.

[0030] Optionally, the refrigerator further comprises a backup power supply, and the backup power supply is configured to provide electrical energy to the gas density sensor, the controller, and the alarm device when the main power supply is cut off.

[0031] In a fourth aspect, the present application further proposes a computer storage medium on which a computer program is stored, and the computer program is loaded by a processor to execute the steps of the control method in the refrigerator as described above.

[0032] In the technical solution of the embodiment of the present application, the gas density collected by the gas density sensor 10 in the bottom area is obtained; when the gas density is greater than a preset density value or the increase ratio of the gas density compared to the air density is greater than a preset ratio, the alarm device of the refrigerator is controlled to alarm and / or the refrigerator is controlled to cut off the main power supply, so that when the refrigerant leaks, an early warning and / or power off can be activated to avoid fire and / or explosion caused by refrigerant leakage, thereby improving the safety of the refrigerator. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0034] Figure 1It is a scene schematic diagram of the structural schematic diagram of the refrigerator provided in the embodiment of the present application;

[0035] Figure 2 is a flow chart of a refrigerator control method provided in an embodiment of the present application;

[0036] Figure 3 In the embodiment of this application Figure 2 A schematic diagram of a sub-process of step S200;

[0037] Figure 4 In the embodiment of this application Figure 2 Another sub-process diagram of step S200;

[0038] Figure 5 is another flow chart of the refrigerator control method provided in the embodiment of the present application;

[0039] Figure 6 In the embodiment of this application Figure 2 Another sub-process diagram of step S200;

[0040] Figure 7 This is a schematic diagram of the internal power supply structure of the refrigerator in the embodiment of the present application;

[0041] Figure 8 Schematic diagram of the structure of the control device of the refrigerator in the embodiment of the present application. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0043] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0044] In this application, the word "exemplary" is used to mean "serving as an example, illustration, or illustration." Any embodiment described in this application as "exemplary" is not necessarily to be construed as being preferred or advantageous over other embodiments. The following description is given to enable any person skilled in the art to implement and use the invention. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the invention can be implemented without using these specific details. In other instances, well-known structures and processes are not elaborated in detail to avoid obscuring the description of the invention with unnecessary details. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles and features disclosed in this application.

[0045] At present, common refrigerants in refrigerators include R134a, R290a, R600a and other refrigerants. These refrigerants are all flammable and explosive substances. As the functions of refrigerators become more and more perfect, the number of welding points in the refrigerant circuit increases, which increases the risk of refrigerant leakage, resulting in an increase in the risk of refrigerator explosion or combustion; and the service life of refrigerators is also increasing, and corrosion and damage of the refrigerant circuit will also increase the risk of refrigerant leakage. Therefore, it is necessary to detect and monitor the refrigerant leakage of refrigerators.

[0046] To this end, the embodiments of the present application provide a refrigerator and a control method, device and computer storage medium thereof, which can effectively monitor and supervise the refrigerant leakage of the refrigerator, reduce the probability of accidents caused by refrigerant leakage in the refrigerator, and improve the safety and reliability of the refrigerator.

[0047] In the technical solution of the embodiment of the present application, Figure 1As shown, by setting a gas density sensor 10 in the bottom area of ​​the refrigerator; since the density of the refrigerant is greater than the density of the air, when the refrigerant leaks, the gas is deposited in the gas bottom area; setting the gas density sensor 10 in the gas bottom area can effectively monitor the density change of the gas inside the refrigerator to accurately determine whether the refrigerator has a refrigerant leak. In an embodiment, the bottom area where the gas density sensor 10 is set is connected to the area where the refrigerant circuit is set, so that when the refrigerant leaks, it will be deposited in the bottom area.

[0048] The embodiments of the present application provide a refrigerator and a control method, device and computer storage medium thereof, which are described in detail below.

[0049] The present application embodiment provides a control method for a refrigerator, wherein the refrigerator comprises a gas density sensor 10, and the gas density sensor 10 is arranged in the bottom area of ​​the refrigerator; wherein, when the refrigerant leaks, the refrigerant leaks to the bottom area; Figure 2 As shown, the control method includes:

[0050] S100, obtaining the gas density of the bottom area;

[0051] S200, if the gas density is greater than a preset density value or the increase ratio of the gas density compared to the air density is greater than a preset ratio, the alarm device of the refrigerator is controlled to alarm and / or the refrigerator is controlled to cut off the main power supply; wherein the preset density value is greater than the air density.

[0052] In the technical solution of the embodiment of the present application, the gas density collected by the gas density sensor 10 in the bottom area is obtained; when the gas density is greater than a preset density value (the preset density value is greater than the air density) or the increase ratio of the gas density compared to the air density is greater than a preset ratio, the alarm device of the refrigerator is controlled to alarm and / or the refrigerator is controlled to cut off the main power supply, so that when the refrigerant leaks, an early warning and / or power off can be activated to avoid fire and / or explosion caused by refrigerant leakage, thereby improving the safety of the refrigerator.

[0053] It should be noted that the density of the refrigerant is greater than the density of the air. Therefore, when the refrigerant leaks, the density of the gas formed after the refrigerant and air are mixed exceeds the density of the air. When the gas density exceeds a certain value or the increase ratio compared to the air density is greater than a preset ratio, it indicates that the refrigerant has leaked, and the refrigerator is controlled to alarm and / or disconnect the main power supply.

[0054] Furthermore, it should be noted that, affected by the environment of each region, the above-mentioned air density refers to the air density in the environment where the refrigerator is used. In addition, the types of refrigerants used in refrigerators are also different, and the densities of the refrigerants are different, and the lower limits of explosion in the air are also different; therefore, the density preset value and preset ratio are specifically set according to the regional environment and the type of refrigerant, which will not be elaborated here. For example, at normal temperature and pressure in a certain area, the air density is 1.29kg / m 3 , the density of a flammable and explosive refrigerant is 2.0kg / m 3 According to the mixing volume ratio formula, when 2% of the volume is mixed, the density of the air changes by ΔT = (1.29*98% + 2*2%) / 1.29 = 1%, that is, the air density increases by 1%. If the lower explosion limit of the flammable and explosive refrigerant is 2%, it can be 1.30kg / m 3 as a density preset, and 1%. as a ratio preset.

[0055] Furthermore, it should be noted that the above-mentioned main power supply is 220kv (may be different in different countries) alternating current; the alarm device can be a sound alarm device, a light alarm device, or a sound and light alarm device.

[0056] As an optional implementation of the above embodiment, Figure 3 As shown, if the gas density rises to a preset value or a ratio of the gas density increase compared to the air density, controlling the alarm device of the refrigerator to alarm and / or controlling the refrigerator to cut off the main power supply includes:

[0057] S211, obtaining a duration during which the gas density is greater than a preset density value or a ratio of the increase of the gas density to the air density is greater than a preset ratio;

[0058] S212, if the duration is less than a preset time, only controlling the alarm device of the refrigerator to sound an alarm;

[0059] S213, if the duration is greater than the preset time, controlling the alarm device of the refrigerator to sound an alarm, and controlling the refrigerator to cut off the main power supply.

[0060] In an embodiment, when the gas density is greater than a preset density value or the increase ratio of the gas density to the air density is greater than a preset ratio, the refrigerant begins to leak; at this time, the alarm device of the refrigerator starts to alarm to prompt the user to take quick action; if the preset time is exceeded and the user has not taken action on the refrigerant leakage, the main power supply is automatically cut off to avoid safety accidents, thereby improving the safety and reliability of the refrigerator.

[0061] In an embodiment, the preset time is set by the system and can be set by the user. For example, the preset time is 5 minutes, 10 minutes or 15 minutes or others.

[0062] As an optional implementation of the above embodiment, Figure 4 As shown, the alarm of the alarm device for controlling the refrigerator includes: S240, outputting situation prompt information to the electronic device connected to the refrigerator through the network module; the situation prompt information includes at least one of the gas density, the rising ratio, and the execution information of the refrigerator. In this embodiment, the refrigerator is connected to the network, and it is networked with the user's electronic device. When a refrigerant leak occurs, the situation prompt information is sent to the user's electronic device through the network module, and the electronic device displays the situation prompt information. The situation prompt information includes at least one of the gas density, the rising ratio, and the execution information of the refrigerator. The execution information is the action performed by the refrigerator when the refrigerant occurs, such as cutting off the power supply, issuing an alarm, etc., so that the user can know the specific situation of the refrigerant leakage and the disposal situation in time.

[0063] As an optional implementation of the above embodiment, Figure 5 As shown, the control method also includes:

[0064] S400, obtaining the ambient temperature and atmospheric pressure of the environment where the refrigerator is located;

[0065] If the gas density is greater than a preset density value or the ratio of the increase of the gas density to the air density is greater than a preset ratio, controlling the alarm device of the refrigerator to alarm and / or controlling the refrigerator to cut off the main power supply includes:

[0066] S221, modifying the preset density value according to the ambient temperature and the atmospheric pressure; and / or

[0067] S222, correcting air density according to the ambient temperature and the atmospheric pressure;

[0068] S223, if the gas density is greater than the corrected density preset value or the increase ratio compared to the corrected air density is greater than the preset ratio, the alarm device of the refrigerator is controlled to alarm and / or the refrigerator is controlled to cut off the main power supply.

[0069] In the embodiment, the change of gas density is affected by the ambient temperature and atmospheric pressure; therefore, in the technical solution of the embodiment of the present application, in order to avoid false alarms or missed alarms, the preset density value and / or air density is corrected by the ambient temperature and atmospheric pressure; the corrected preset density value and / or air density is used to determine whether the gas density exceeds the preset density value or the increase ratio compared to the corrected air density is greater than the preset ratio. Therefore, in this embodiment, the probability of false alarms or missed alarms caused by changes in ambient temperature and atmospheric pressure can be reduced, and the possibility of refrigerant leakage and detection can be increased.

[0070] In an embodiment, the ambient temperature and atmospheric pressure may be acquired by connecting the refrigerator to the Internet, or may be acquired by a temperature sensor and an atmospheric pressure sensor built into the refrigerator.

[0071] As an optional implementation of the above embodiment, the density preset value includes a first density preset value and a second density preset value; the preset ratio includes a first preset ratio and a second preset ratio; the first density preset value is greater than the air density and less than the second density preset value; the first preset ratio is less than the second preset ratio.

[0072] like Figure 6 As shown, if the gas density is greater than a preset density value or the increase ratio of the gas density to the air density is greater than a preset ratio, controlling the alarm device of the refrigerator to alarm and / or controlling the refrigerator to cut off the main power supply includes:

[0073] S231, if the gas density is less than the second density preset value and greater than the first density preset value, or the increase ratio of the gas density compared to the air density is greater than the first preset ratio and less than the second preset ratio, control the alarm device to output a first alarm message;

[0074] S232: If the gas density is greater than the second density preset value, or the increase ratio of the gas density compared to the air density is greater than the second preset ratio, the alarm device is controlled to output a second alarm message and / or the refrigerator is controlled to cut off the main power supply.

[0075] In the technical solution of the embodiment of the present application, by setting a first density preset value and a second density preset value, or setting a first preset ratio and a second preset ratio; when the gas density exceeds the first density preset value but does not exceed the second density preset value, or the rising ratio exceeds the first preset ratio but does not exceed the second preset ratio, there is a refrigerant leakage, and the alarm device is controlled to output a first alarm message to prompt a user of refrigerant leakage; when the gas density exceeds the second density preset value, or the rising ratio exceeds the second preset ratio, the refrigerant leaks and there is a risk of explosion or combustion. At this time, the alarm device is controlled to output a second alarm message or the refrigerator is controlled to cut off the main power supply, prompting the user that there is a refrigerant leakage and there is a risk of explosion or combustion.

[0076] In an embodiment, the first alarm information and the second alarm information are different, for example, the first alarm information is an orange light, and the second alarm information is a red light; for example, the first alarm information is an intermittent prompt sound, and the second alarm information is a continuous beep sound, etc.

[0077] In an embodiment, the specific settings of the first density preset value and the first preset ratio, as well as the second density preset value and the second preset ratio are determined according to the air density, the lower explosion limit of the refrigerant, and the density of the refrigerant. For example, the first density preset value and the first preset ratio can be set according to 50%-70% of the lower explosion limit of the refrigerant, that is, when the refrigerant with an explosion volume ratio of 50%-70% is mixed in the air, an alarm is started; the second density preset value and the second preset ratio can be set according to 70%-95% of the lower explosion limit of the refrigerant, that is, when the refrigerant with an explosion volume ratio of 70%-95% is mixed in the air, an alarm is started and / or the power is cut off.

[0078] As an optional implementation of the above embodiment, the gas density sensor 10 is arranged away from the heat source of the refrigerator; the heat source includes a compressor and a condenser. In the technical solution of the present application, the gas density sensor 10 is arranged away from the heat source to avoid the influence of temperature on the measurement of the gas density sensor, and it is also easy to clean to reduce the error caused by dust to the sensor detection. In some embodiments, the compressor is arranged in the press chamber. The gas density sensor 10 can be arranged outside the press chamber, and the gas density sensor can be insulated from the press chamber, such as by arranging a heat insulation pad, to reduce the heat generated by the compressor from being transferred to the setting space of the gas density sensor.

[0079] As an optional implementation of the above embodiment, the refrigerator further includes a backup power supply, which is configured to provide power to the gas density sensor 10, the controller, and the alarm device when the main power supply is powered off. In the technical solution of the embodiment of the present application, in order to effectively monitor the development of the leakage of the leaking agent, a backup power supply is provided to provide power to the gas density sensor 10, the controller, and the alarm device, so that when the main power supply is disconnected from providing power to the refrigerator, the gas density sensor 10, the controller, and the alarm device can work normally and exchange information, thereby avoiding missed reports and false reports when the power is off.

[0080] like Figure 7 As shown, the controller includes a control chip, such as an MCU chip, a CPU chip, etc. When the main power supply is supplying power to the refrigerator, it also supplies power to the gas density sensor 10, the control chip, and the alarm device. When the main power supply stops supplying power to the refrigerator, the backup power supply inside the refrigerator supplies power to the gas density sensor 10, the control chip, and the alarm device.

[0081] In addition, in the technical solution of the embodiment of the present application, the gas density sensor 10 can be set to be multiple, distributed in different areas of the bottom of the refrigerator; when the gas density collected by the gas density sensor 10 in one or more areas is greater than the preset density value or the increase ratio of the gas density compared to the air density is greater than the preset ratio, the control method further includes:

[0082] Position information of a gas density sensor 10 where the gas density is greater than a preset density value or the increase ratio of the gas density to the air density is greater than a preset ratio;

[0083] The position information is output.

[0084] The control method facilitates preliminary positioning and troubleshooting of the refrigerant leakage area. In the embodiment, the positioning information can be output in the form of an image, or the number information of the gas density sensor 10 inside the refrigerator whose gas density is greater than a preset density value or whose gas density rises more than a preset ratio compared to the air density, etc.

[0085] In order to better implement the control method of the refrigerator in the embodiment of the present application, based on the control method, the embodiment of the present application also provides a control device for the refrigerator, such as Figure 8 As shown, the control device includes:

[0086] An acquisition module configured to acquire the gas density of the bottom area;

[0087] The control module controls the alarm device of the refrigerator to alarm and / or controls the refrigerator to cut off the main power supply if the gas density is greater than a preset density value or the increase ratio of the gas density compared to the air density is greater than a preset ratio.

[0088] Wherein, when the gas density rises to a preset value or a ratio of the gas density rise compared to the air density, the alarm device of the refrigerator is controlled to alarm and / or the refrigerator is controlled to cut off the main power supply,

[0089] The acquisition module is further configured to acquire a duration in which the gas density is greater than a preset density value or a rise ratio of the gas density to the air density is greater than a preset ratio;

[0090] The control module is configured to control only the alarm device of the refrigerator to sound an alarm if the duration is less than a preset time;

[0091] The control module is configured to control an alarm device of the refrigerator to sound an alarm and control the refrigerator to cut off a main power supply if the duration is greater than a preset time.

[0092] The control device also includes an output module. When the alarm device for controlling the refrigerator sounds an alarm, the output module also outputs situation prompt information to an electronic device connected to the refrigerator via a network module; the situation prompt information includes at least one of the gas density, the rising ratio, and the execution information of the refrigerator.

[0093] Wherein, the acquisition module is also used to obtain the ambient temperature and atmospheric pressure of the environment where the refrigerator is located;

[0094] The control device further includes a correction module, which is used to control the alarm device of the refrigerator to alarm and / or control the refrigerator to cut off the main power supply when executing the above-mentioned if the gas density is greater than the preset density value or the increase ratio of the gas density to the air density is greater than the preset ratio.

[0095] The correction module is used to correct the preset density value according to the ambient temperature and the atmospheric pressure; and / or

[0096] The correction module is used to correct the air density according to the ambient temperature and the atmospheric pressure;

[0097] The control module is used to control the alarm device of the refrigerator to alarm and / or control the refrigerator to cut off the main power supply if the gas density is greater than the corrected density preset value or the increase ratio compared to the corrected air density is greater than the preset ratio.

[0098] Optionally, the density preset value includes a first density preset value and a second density preset value; the preset ratio includes a first preset ratio and a second preset ratio; the first density preset value is greater than the air density and less than the second density preset value; the first preset ratio is less than the second preset ratio;

[0099] If the gas density is greater than a preset density value or the ratio of the increase of the gas density to the air density is greater than a preset ratio, controlling the alarm device of the refrigerator to alarm and / or controlling the refrigerator to cut off the main power supply includes:

[0100] The control module is used to control the alarm device to output a first alarm message if the gas density is less than the second density preset value, greater than the first density preset value, or the increase ratio of the gas density compared to the air density is greater than the first preset ratio and less than the second preset ratio;

[0101] The control module is used to control the alarm device to output a second alarm message or control the refrigerator to cut off the main power supply if the gas density is greater than the second density preset value, or the increase ratio of the gas density compared to the air density is greater than the second preset ratio.

[0102] In some embodiments, at normal temperature and pressure, the preset density value is at least 1.30 kg / m, and the preset ratio is at least 1%; and / or the gas density sensor 10 is arranged away from the heat source of the refrigerator; the heat source includes a compressor and a condenser.

[0103] An embodiment of the present application also proposes a control system for a refrigerator, comprising: one or more processors; a memory; and one or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the processor to implement the refrigerator control method as described above.

[0104] In general, usually, the control system of the refrigerator includes: at least one processor, at least one memory, and a control program of the refrigerator control system stored in the memory and executable on the processor, and the control program of the refrigerator control system is configured to implement the steps of the foregoing control method.

[0105] The processor may include one or more processing cores, such as a 4-core processor, an 8-core processor, etc. The processor may be implemented in at least one hardware form of DSP (Digital Signal Processing), FPGA (Field-Programmable Gate Array), and PLA (Programmable Logic Array). The processor may also include a main processor and a coprocessor. The main processor is a processor for processing data in the awake state, also known as a CPU (Central Processing Unit); the coprocessor is a low-power processor for processing data in the standby state. In some embodiments, the processor may be integrated with a GPU (Graphics Processing Unit), which is responsible for rendering and drawing the content to be displayed on the display screen. The processor may also include an AI (Artificial Intelligence) processor, which is used to process the control method operation of the control system of the refrigerator, so that the control method model of the control system of the refrigerator can be trained and learned autonomously to improve efficiency and accuracy.

[0106] The memory may include one or more computer-readable storage media, which may be non-transitory. The memory may also include a high-speed random access memory, and a non-volatile memory, such as one or more disk storage devices, flash memory storage devices. In some embodiments, the non-transitory computer-readable storage medium in the memory is used to store at least one instruction, which is used to be executed by the processor to implement the refrigerator control method of the refrigerator control system provided in the method embodiment of the present application.

[0107] Obtaining the gas density of the bottom area;

[0108] If the gas density is greater than a preset density value or the increase ratio of the gas density to the air density is greater than a preset ratio, the alarm device of the refrigerator is controlled to alarm and / or the refrigerator is controlled to cut off the main power supply.

[0109] Wherein, if the gas density rises to a preset value or a ratio of the gas density rise compared to the air density, controlling the alarm device of the refrigerator to alarm and / or controlling the refrigerator to cut off the main power supply includes:

[0110] Obtaining a duration in which the gas density is greater than a preset density value or a rise ratio of the gas density to the air density is greater than a preset ratio;

[0111] If the duration is less than the preset time, only the alarm device of the refrigerator is controlled to sound an alarm;

[0112] If the duration is greater than the preset time, the alarm device of the refrigerator is controlled to sound an alarm, and the refrigerator is controlled to cut off the main power supply.

[0113] Wherein, the alarm device for controlling the refrigerator to alarm includes:

[0114] Outputting situation prompt information to an electronic device connected to the refrigerator via a network module; the situation prompt information includes at least one of the gas density, the rising ratio, and the execution information of the refrigerator.

[0115] Wherein, the control method further includes:

[0116] Obtaining the ambient temperature and atmospheric pressure of the environment where the refrigerator is located;

[0117] If the gas density is greater than a preset density value or the ratio of the increase of the gas density to the air density is greater than a preset ratio, controlling the alarm device of the refrigerator to alarm and / or controlling the refrigerator to cut off the main power supply includes:

[0118] According to the ambient temperature and the atmospheric pressure, modify the preset density value; and / or

[0119] Correcting air density according to the ambient temperature and the atmospheric pressure;

[0120] If the gas density is greater than the corrected density preset value or the increase ratio compared to the corrected air density is greater than the preset ratio, the alarm device of the refrigerator is controlled to alarm and / or the refrigerator is controlled to cut off the main power supply.

[0121] Wherein, the density preset value includes a first density preset value and a second density preset value; the preset ratio includes a first preset ratio and a second preset ratio; the first density preset value is greater than the air density and less than the second density preset value; the first preset ratio is less than the second preset ratio;

[0122] If the gas density is greater than a preset density value or the ratio of the increase of the gas density to the air density is greater than a preset ratio, controlling the alarm device of the refrigerator to alarm and / or controlling the refrigerator to cut off the main power supply includes:

[0123] If the gas density is less than the second density preset value and greater than the first density preset value, or the increase ratio of the gas density compared to the air density is greater than the first preset ratio and less than the second preset ratio, the alarm device is controlled to output a first alarm message;

[0124] If the gas density is greater than the second density preset value, or the increase ratio of the gas density compared to the air density is greater than the second preset ratio, the alarm device is controlled to output a second alarm message or the refrigerator is controlled to cut off the main power supply.

[0125] Wherein, at normal temperature and pressure, the preset density value is at least 1.30 kg / m, and the preset ratio is at least 1%; and / or

[0126] The gas density sensor 10 is arranged away from the heat source of the refrigerator; the heat source includes a compressor and a condenser.

[0127] The above is a detailed introduction to a refrigerator and its control device, method and computer storage medium provided in the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A refrigerator control method, characterized in that: The refrigerator includes a gas density sensor, and the gas density sensor is arranged in the bottom area of ​​the refrigerator; wherein, when the refrigerant leaks, the refrigerant leaks to the bottom area; the control method includes: Obtaining the gas density of the bottom area; If the gas density is greater than a preset density value or the increase ratio of the gas density to the air density is greater than a preset ratio, the alarm device of the refrigerator is controlled to alarm and / or the refrigerator is controlled to cut off the main power supply; wherein the preset density value is greater than the air density.

2. The control method according to claim 1, characterized in that: If the gas density rises to a preset value or a ratio of the gas density rise compared to the air density, controlling the alarm device of the refrigerator to alarm and / or controlling the refrigerator to cut off the main power supply includes: Obtaining a duration in which the gas density is greater than a preset density value or a rise ratio of the gas density to the air density is greater than a preset ratio; If the duration is less than the preset time, only the alarm device of the refrigerator is controlled to sound an alarm; If the duration is greater than the preset time, the alarm device of the refrigerator is controlled to sound an alarm, and the refrigerator is controlled to cut off the main power supply.

3. The control method according to claim 1, characterized in that: The alarm device for controlling the refrigerator to alarm includes: Outputting situation prompt information to an electronic device connected to the refrigerator via a network module; the situation prompt information includes at least one of the gas density, the rising ratio, and the execution information of the refrigerator.

4. The control method according to claim 1, characterized in that: The control method further comprises: Obtaining the ambient temperature and atmospheric pressure of the environment where the refrigerator is located; If the gas density is greater than a preset density value or the ratio of the increase of the gas density to the air density is greater than a preset ratio, controlling the alarm device of the refrigerator to alarm and / or controlling the refrigerator to cut off the main power supply includes: According to the ambient temperature and the atmospheric pressure, modify the preset density value; and / or Correcting air density according to the ambient temperature and the atmospheric pressure; If the gas density is greater than the corrected density preset value or the increase ratio compared to the corrected air density is greater than the preset ratio, the alarm device of the refrigerator is controlled to alarm and / or the refrigerator is controlled to cut off the main power supply.

5. The control method according to claim 1, characterized in that: The density preset value includes a first density preset value and a second density preset value; the preset ratio includes a first preset ratio and a second preset ratio; the first density preset value is greater than the air density and less than the second density preset value; the first preset ratio is less than the second preset ratio; If the gas density is greater than a preset density value or the ratio of the increase of the gas density to the air density is greater than a preset ratio, controlling the alarm device of the refrigerator to alarm and / or controlling the refrigerator to cut off the main power supply includes: If the gas density is less than the second density preset value and greater than the first density preset value, or the increase ratio of the gas density compared to the air density is greater than the first preset ratio and less than the second preset ratio, the alarm device is controlled to output a first alarm message; If the gas density is greater than the second density preset value, or the increase ratio of the gas density compared to the air density is greater than the second preset ratio, the alarm device is controlled to output a second alarm message or the refrigerator is controlled to cut off the main power supply.

6. The control method according to claim 1, characterized in that: The gas density sensor is arranged away from the heat source of the refrigerator; the heat source includes a compressor and a condenser.

7. A refrigerator control device, characterized in that: The refrigerator includes a gas density sensor, which is arranged in the bottom area of ​​the refrigerator; wherein, when the refrigerant leaks, the refrigerant leaks to the bottom area; the control device includes: An acquisition module configured to acquire the gas density of the bottom area; The control module controls the alarm device of the refrigerator to alarm and / or controls the refrigerator to cut off the main power supply if the gas density is greater than a preset density value or the increase ratio of the gas density compared to the air density is greater than a preset ratio.

8. A refrigerator, characterized in that: include: A gas density sensor, wherein the gas density sensor is disposed in the bottom area of ​​the refrigerator; wherein, when the refrigerant leaks, the refrigerant leaks to the bottom area; as well as A controller configured to execute the refrigerator control method according to any one of claims 1 to 6.

9. The refrigerator according to claim 8, characterized in that: The refrigerator further comprises a backup power supply, which is configured to provide power to the gas density sensor, the controller and the alarm device when the main power supply is cut off.

10. A storage medium, characterized in that: A computer program is stored thereon, and the computer program is loaded by a processor to execute the steps of the control method in the refrigerator as described in any one of claims 1 to 6.

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