Refrigerator refrigerant detection system and method

Abstract

The invention provides a refrigerator refrigerant detection system and method. The refrigerator refrigerant detection system comprises a refrigerant detection module; the controller is connected with the temperature sensor and the refrigerant detection module. The controller is configured to obtain the refrigerant concentration detected by the non-dispersive infrared sensor; refrigerant temperature and humidity detected by a temperature and humidity sensor are obtained; acquiring an environment temperature detected by a temperature sensor; if the environment temperature is lower than the preset temperature, the heater is controlled to be started for preset time; if the environment temperature is higher than the preset temperature, the refrigerant concentration is compared with the preset refrigerant concentration to obtain a first comparison result; comparing the temperature and humidity of the refrigerant with preset temperature and humidity to obtain a second comparison result; and generating a control instruction according to the first comparison result and the second comparison result, and controlling the refrigerator to operate in a preset mode. The refrigerant detection module is used for detecting the concentration and temperature and humidity of the refrigerant and judging whether the refrigerant leaks or not, so that the problem that leakage of the refrigerant of the refrigerator is not easy to detect is solved.

Description

Technical Field

[0001] The present application relates to the technical field of refrigeration equipment, and in particular to a refrigerator refrigerant detection system and method. Background Art

[0002] Refrigerant is an indispensable and important component of refrigeration units. The quality and performance of refrigerant will affect the refrigeration effect and service life. Since traditional refrigerants are prone to cause environmental problems such as climate warming and ozone layer destruction, R32 and R290 refrigerants are used as a new type of refrigerant. R32 and R290 refrigerants are more environmentally friendly, but R32 refrigerant is flammable and R290 refrigerant has the risk of explosion. If the installation is not standardized, the refrigerant leaks or encounters open flames, it will cause explosions and other dangerous consequences. The colorless and odorless refrigerant is also difficult to detect when it leaks, which poses a greater safety hazard.

[0003] In the prior art, the pressure and temperature of the drain pipe can be detected by a pressure sensor to determine whether the refrigerant is leaking. However, when the refrigerant leaks slowly, the pressure sensor has low accuracy and is difficult to detect. Summary of the invention

[0004] The present application provides a refrigerator refrigerant detection system and method to solve the problem that refrigerator refrigerant leakage is difficult to detect.

[0005] In a first aspect, the present application provides a refrigerator refrigerant detection system, which is applied to a refrigerator and includes:

[0006] A refrigerant detection module, which is arranged in the space where the evaporator of the refrigerator is located, and comprises a non-dispersive infrared sensor, a heater, and a temperature and humidity sensor;

[0007] A temperature sensor, the temperature sensor is used to detect the ambient temperature of the environment in which the refrigerant detection module is located;

[0008] A controller, wherein the controller is connected to the temperature sensor and the refrigerant detection module respectively;

[0009] The controller is configured to:

[0010] Obtaining the refrigerant concentration detected by the non-dispersive infrared sensor;

[0011] Acquiring the refrigerant temperature and humidity detected by the temperature and humidity sensor;

[0012] Acquiring the ambient temperature detected by the temperature sensor;

[0013] If the ambient temperature is lower than a preset temperature, controlling the heater to turn on for a preset time;

[0014] If the ambient temperature is higher than the preset temperature, the refrigerant concentration is compared with the preset refrigerant concentration to obtain a first comparison result; the refrigerant temperature and humidity are compared with the preset temperature and humidity to obtain a second comparison result;

[0015] A control instruction is generated according to the first comparison result and the second comparison result to control the refrigerator to operate in a preset mode.

[0016] Optionally, the controller is further configured to:

[0017] If the refrigerant concentration is less than a preset refrigerant concentration threshold and the refrigerant temperature and humidity are less than a preset temperature and humidity threshold, the refrigerator operation mode is controlled to remain unchanged.

[0018] Optionally, the controller is further configured to:

[0019] If the refrigerant concentration is greater than a preset refrigerant concentration threshold or the refrigerant temperature and humidity are greater than a preset temperature threshold, the refrigerator is controlled to stop running.

[0020] Optionally, it further includes a terminal and a Bluetooth module, wherein the Bluetooth module includes a Bluetooth module and a WIFI module; the terminal is connected to the refrigerant detection module via the Bluetooth module;

[0021] The controller is configured to:

[0022] Receiving an information acquisition instruction generated by the terminal to obtain the refrigerant concentration and the refrigerant temperature and humidity detected by the refrigerant detection module;

[0023] The refrigerant concentration and the refrigerant temperature and humidity are sent to the terminal through the Bluetooth module and the WIFI module to control the terminal to display the refrigerant concentration and the refrigerant temperature and humidity.

[0024] Optionally, the controller is further configured to:

[0025] If the refrigerant concentration is greater than a preset refrigerant concentration threshold or the refrigerant temperature and humidity are greater than a preset temperature threshold, a warning instruction is generated to control the terminal to generate a warning prompt.

[0026] Optionally, the refrigerant detection module is also provided with a waterproof and breathable membrane.

[0027] Optionally, the refrigerant detection module is respectively provided with pipes connecting the evaporator and compressor of the refrigerator, and pipes connecting the evaporator and condenser.

[0028] In a second aspect, the present application provides a refrigerator refrigerant detection method, which is applied to the refrigerator refrigerant detection system described in the first aspect, comprising:

[0029] Obtaining the refrigerant concentration detected by the non-dispersive infrared sensor;

[0030] Obtain the refrigerant temperature and humidity detected by the temperature and humidity sensor;

[0031] Get the ambient temperature detected by the temperature sensor;

[0032] If the ambient temperature is lower than a preset temperature, the heater is controlled to turn on for a preset time;

[0033] If the ambient temperature is higher than the preset temperature, the refrigerant concentration is compared with the preset refrigerant concentration to obtain a first comparison result; the refrigerant temperature and humidity are compared with the preset temperature and humidity to obtain a second comparison result;

[0034] A control instruction is generated according to the first comparison result and the second comparison result to control the refrigerator to operate in a preset mode.

[0035] Optionally, also include:

[0036] If the refrigerant concentration is less than a preset refrigerant concentration threshold and the refrigerant temperature and humidity are less than a preset temperature and humidity threshold, the refrigerator operation mode is controlled to remain unchanged;

[0037] If the refrigerant concentration is greater than a preset refrigerant concentration threshold or the refrigerant temperature and humidity are greater than a preset temperature threshold, the refrigerator is controlled to stop running.

[0038] It can be seen from the above technical scheme that the present application provides a refrigerator refrigerant detection system and method, the refrigerator refrigerant detection system comprising: a refrigerant detection module, the refrigerant detection module is set in the space where the evaporator of the refrigerator is located, the refrigerant detection module comprises a non-dispersive infrared sensor, a heater, and a temperature and humidity sensor; a temperature sensor, the temperature sensor is used to detect the ambient temperature of the environment where the refrigerant detection module is located; a controller, the controller is connected to the temperature sensor and the refrigerant detection module respectively; the controller is configured to: obtain the refrigerant concentration detected by the non-dispersive infrared sensor; obtain the refrigerant temperature and humidity detected by the temperature and humidity sensor; obtain the ambient temperature detected by the temperature sensor; if the ambient temperature is lower than the preset temperature, control the heater to turn on the preset time; if the ambient temperature is higher than the preset temperature, compare the refrigerant concentration with the preset refrigerant concentration to obtain a first comparison result; compare the refrigerant temperature and humidity with the preset temperature and humidity to obtain a second comparison result; generate a control instruction according to the first comparison result and the second comparison result to control the refrigerator to operate in a preset mode. The refrigerant detection module is used to detect the refrigerant concentration and the refrigerant temperature and humidity, and then determine whether a refrigerant leak occurs, thereby solving the problem that refrigerator refrigerant leaks are difficult to detect. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the embodiments are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0040] Figure 1 A schematic diagram of a refrigerator refrigerant detection system provided in an embodiment of the present application;

[0041] Figure 2 A schematic diagram of another refrigerator refrigerant detection system provided in an embodiment of the present application;

[0042] Figure 3 A schematic diagram of the waterproof and breathable membrane structure provided in an embodiment of the present application;

[0043] Figure 4 A flow chart of a refrigerator refrigerant detection method provided in an embodiment of the present application. DETAILED DESCRIPTION

[0044] The following embodiments are described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following embodiments do not represent all implementations consistent with the present application. They are only examples of systems and methods consistent with some aspects of the present application as detailed in the claims.

[0045] Refrigerant is an indispensable and important component of refrigeration units. The quality and performance of refrigerant will affect the refrigeration effect and service life. Since traditional refrigerants are prone to cause environmental problems such as climate warming and ozone layer destruction, R32 and R290 refrigerants are used as a new type of refrigerant. R32 and R290 refrigerants are more environmentally friendly, but R32 refrigerant is flammable and R290 refrigerant has the risk of explosion. If the installation is not standardized, the refrigerant leaks or encounters open flames, it will cause explosions and other dangerous consequences. The colorless and odorless refrigerant is also difficult to detect when it leaks, which poses a greater safety hazard.

[0046] In some embodiments, the pressure and temperature of the drain pipe can be detected by a pressure sensor to determine whether the refrigerant is leaking. However, when the refrigerant leaks slowly, the pressure sensor has low accuracy and is difficult to detect.

[0047] To solve the problem of difficult detection of refrigerator refrigerant leakage, see Figure 1 The embodiment of the present application provides a refrigerator refrigerant detection system, which is applied to a refrigerator and includes:

[0048] Refrigerant detection module, the refrigerant detection module includes a non-dispersive infrared sensor, a heater, and a temperature and humidity sensor.

[0049] Among them, the non-dispersive infrared sensor detects the refrigerant concentration based on the principle that gas absorbs infrared light of specific wavelengths. Specifically, the infrared light source inside the non-dispersive infrared sensor emits infrared light of specific wavelengths, which are selected to match the absorption characteristics of the refrigerant gas to be tested. The gas in the environment is extracted through a built-in air sampling pump and passed through an air chamber. If there is a refrigerant leak, the extracted gas will contain a certain concentration of refrigerant gas. When the refrigerant gas sample passes through the detection area, infrared light of specific wavelengths will be absorbed by the refrigerant molecules. Different types of refrigerants absorb infrared radiation at their characteristic absorption wavelengths, so this selective absorption is the basis for identifying specific refrigerants.

[0050] At the same time, in order to improve the accuracy and selectivity of detection, the non-dispersive infrared sensor is equipped with a filter that only allows infrared light of a specific wavelength absorbed by the target refrigerant to pass through, eliminating interference from other wavelengths. The absorbed infrared light eventually reaches the infrared detector. When the infrared energy decreases, the temperature or charge state of the detector changes, and this change is converted into an electrical signal. The signal processing circuit analyzes the electrical signal obtained from the detector to obtain the refrigerant concentration.

[0051] It can be understood that in the embodiment of the present application, the non-dispersive infrared sensor is provided with multiple detection channels so as to simultaneously detect multiple refrigerants or other related gases, thereby providing a more comprehensive environmental monitoring capability.

[0052] Temperature and humidity sensors can use the temperature and humidity sensitivity of metal or semiconductor materials to measure temperature and humidity. When the temperature or humidity changes, the resistance value of the temperature and humidity sensor will also change. The temperature and humidity values ​​are obtained by measuring and converting the resistance value through the circuit.

[0053] The heater preheats the gas sample in the refrigerant detection module, which helps to improve the response speed and sensitivity of the non-dispersive infrared sensor. By heating, the refrigerant gas sample can reach a temperature range suitable for detection, thereby more accurately measuring the refrigerant concentration.

[0054] In addition, since the detection accuracy of the temperature and humidity sensor will be affected when the temperature and humidity sensor works in a low temperature environment, setting an infrared heater can also appropriately heat the temperature of the current environment to improve the detection accuracy of the temperature and humidity sensor.

[0055] Temperature sensor: The temperature sensor is used to detect the ambient temperature of the environment in which the refrigerant detection module is located.

[0056] A controller, wherein the controller is connected to the temperature sensor and the refrigerant detection module respectively;

[0057] Among them, the controller will obtain the data detected by the temperature sensor, the non-dispersive infrared sensor in the refrigerant detection module, and the temperature and humidity sensor in real time, and determine whether the refrigerator has a refrigerant leakage problem based on the real-time detection data.

[0058] Specifically, the controller is configured as follows:

[0059] Obtaining the refrigerant concentration detected by the non-dispersive infrared sensor;

[0060] Obtain the refrigerant temperature and humidity detected by the temperature and humidity sensor;

[0061] Get the ambient temperature detected by the temperature sensor;

[0062] If the ambient temperature is lower than the preset temperature, the heater is controlled to turn on for the preset time;

[0063] If the ambient temperature is higher than the preset temperature, the refrigerant concentration is compared with the preset refrigerant concentration to obtain a first comparison result; the refrigerant temperature and humidity are compared with the preset temperature and humidity to obtain a second comparison result;

[0064] A control instruction is generated according to the first comparison result and the second comparison result to control the refrigerator to operate in a preset mode.

[0065] Specifically, the controller will obtain in real time the refrigerant concentration detected by the non-dispersive infrared sensor, the refrigerant temperature and humidity checked by the temperature and humidity sensor, and the ambient temperature detected by the temperature sensor. When the ambient temperature detected by the temperature sensor is low, the heater needs to be turned on to increase the temperature inside the refrigerant detection module to prevent the gas containing water vapor entering the refrigerant detection module due to the low temperature from condensing into water droplets, affecting the detection accuracy of the non-dispersive infrared sensor. At the same time, the lower temperature will affect the detection accuracy of the temperature and humidity sensor. Therefore, the heater can be turned on for a preset time when the ambient temperature is low.

[0066] When the ambient temperature is higher than the preset temperature, a first comparison result can be obtained by comparing the refrigerant concentration detected by the non-dispersive infrared sensor with the preset refrigerant concentration, and a second comparison result can be obtained by comparing the refrigerant temperature and humidity with the preset temperature and humidity. The refrigerator can then be controlled to operate in a preset mode according to the first comparison result and the second comparison result. For example, when the refrigerant concentration detected by the non-dispersive infrared sensor is greater than the preset refrigerant concentration, it means that there is a refrigerant leakage problem in the refrigerator, and the refrigerator can be controlled to cut off the power to reduce safety hazards. When the refrigerant temperature and humidity detected by the temperature and humidity sensor are greater than the preset refrigerant temperature and humidity, the refrigerator can also be controlled to cut off the power, and the user can be prompted that the refrigerant temperature and humidity of the refrigerator are abnormal, so as to deal with it in time.

[0067] In some embodiments, the controller is further configured to:

[0068] If the refrigerant concentration is less than the preset refrigerant concentration threshold and the refrigerant temperature and humidity are less than the preset temperature and humidity threshold, the refrigerator operation mode is controlled to remain unchanged.

[0069] Among them, if the refrigerant concentration is less than the preset refrigerant concentration threshold and the refrigerant temperature and humidity are less than the preset temperature and humidity threshold, it means that there is no refrigerant leakage problem in the refrigerator. Therefore, the refrigerator can maintain its current working state and continue to be monitored by the refrigerant detection module.

[0070] In some embodiments, the controller is further configured to:

[0071] If the refrigerant concentration is greater than the preset refrigerant concentration threshold or the refrigerant temperature and humidity are greater than the preset temperature threshold, the refrigerator is controlled to stop running. If the refrigerant concentration is greater than the preset refrigerant concentration threshold and the refrigerant temperature and humidity are greater than the preset temperature and humidity threshold, it means that there is a refrigerant leakage problem in the refrigerator. Therefore, the refrigerator can be controlled to cut off power to reduce safety hazards. At the same time, an alarm message can be issued to inform the user that the refrigerator has a refrigerant leakage problem so that the user can handle it in time.

[0072] In some embodiments, Figure 2 As shown, the refrigerator refrigerant detection system also includes a terminal and a Bluetooth module, and the Bluetooth module includes a Bluetooth module and a WIFI module; the terminal is connected to the refrigerant detection module via the Bluetooth module;

[0073] The controller is configured as:

[0074] The information acquisition instruction generated by the receiving terminal is used to obtain the refrigerant concentration and the refrigerant temperature and humidity detected by the refrigerant detection module;

[0075] The refrigerant concentration and refrigerant temperature and humidity are sent to the terminal through the Bluetooth module and the WIFI module to control the terminal to display the refrigerant concentration and refrigerant temperature and humidity.

[0076] The terminal can be any device with Bluetooth function, such as a smart phone, tablet computer or laptop computer. The terminal is used to receive and display the refrigerant concentration and temperature and humidity information. The WIFI module in the Bluetooth module can be connected to the home network. The Bluetooth module can upload the refrigerant concentration and refrigerant temperature and humidity information to the server through the home network, and then send the refrigerant concentration and refrigerant temperature and humidity information to the terminal through the server. The Bluetooth module is a bridge connecting the terminal and the refrigerant detection module. The Bluetooth module is responsible for transmitting data between the terminal and the refrigeration detection module.

[0077] After the refrigerant detection module detects the refrigerant concentration and the temperature and humidity of the refrigerant, the controller reads the current refrigerant concentration and temperature and humidity information from the refrigerant detection module, sends the collected data to the server via the Bluetooth module, and then sends the collected data to the terminal via the server. After the terminal receives the data, it displays it on the screen so that the user can clearly see the status of the refrigerant.

[0078] For example, when the refrigerant leaks and the refrigerator loses power, the user is not at home. At this time, the refrigerator is out of power and the food stored in the refrigerator is likely to deteriorate due to the increase in temperature. Therefore, by sending accurate information on the refrigerant temperature, humidity and refrigerant concentration to the terminal, when a refrigerant leak causes the refrigerator to lose power, the user can obtain the information about the refrigerator power outage in the first place, so that the user can promptly handle the food in the refrigerator and repair the refrigerator.

[0079] In some embodiments, the controller is further configured to:

[0080] If the refrigerant concentration is greater than a preset refrigerant concentration threshold or the refrigerant temperature and humidity are greater than a preset temperature threshold, a warning instruction is generated to control the terminal to generate a warning prompt.

[0081] Among them, when the refrigerant concentration is greater than the preset refrigerant concentration threshold or the refrigerant temperature and humidity are greater than the preset temperature and humidity threshold, it indicates that there is a refrigerant leakage. Therefore, the controller can control the terminal to generate a warning indication to prompt the user that there is a refrigerant leakage in the refrigerator so that the user can deal with it in time as soon as possible.

[0082] It is understandable that the terminal can be a mobile phone, tablet or other device. After the user binds the APP using the mobile phone or tablet, the APP can push refrigerator information in real time. When there is a refrigerant leakage problem in the refrigerator, the controller sends the refrigerant leakage information to the user's mobile phone or tablet through the Bluetooth module to prompt the user.

[0083] In some embodiments, the refrigerant detection module is also provided with a waterproof and breathable membrane. The waterproof and breathable membrane is a new type of polymer waterproof material. Figure 3 As shown in the figure, the waterproof breathable membrane mainly consists of three layers: the first protective layer, the breathable layer and the second protective layer; the first protective layer and the second protective layer are spunbond non-woven fabrics, and the breathable layer is a polytetrafluoroethylene breathable membrane. The main function of the spunbond non-woven fabric is to enhance the tensile force and hydrostatic pressure and protect the breathable membrane. The breathable and waterproof function is mainly achieved through the breathable layer polytetrafluoroethylene breathable membrane.

[0084] The distance between gas molecules is large, and they can pass through the pores of the waterproof breathable membrane during diffusion. However, the distance between liquid molecules is smaller than the pores, and under the action of surface tension, liquid molecules cannot pass through the waterproof breathable membrane, which plays a waterproof role. By setting a waterproof breathable membrane in the refrigerant detection module, water vapor can be prevented from entering the refrigerant detection module and affecting the detection accuracy.

[0085] In some embodiments, the refrigerant detection module is respectively set in the pipes connecting the evaporator and the compressor of the refrigerator, and the pipes connecting the evaporator and the condenser. Among them, the refrigerator refrigeration system includes a compressor, an evaporator, a condenser and a capillary tube, and the compressor, the evaporator, the condenser and the capillary tube are connected by pipes. Since the refrigerator refrigeration system is set on the back plate of the refrigerator, when the compressor, the evaporator and the condenser are in different areas, the refrigerant detection module can be set in multiple pipes respectively, so as to detect whether there is a refrigerant leakage problem in more detail.

[0086] In some embodiments, Figure 4As shown, the embodiment of the present application provides a refrigerator refrigerant detection method, which is applied to the refrigerator refrigerant detection system provided in the above embodiment, including:

[0087] S100: Acquire the refrigerant concentration detected by the non-dispersive infrared sensor.

[0088] S200: Obtain the refrigerant temperature and humidity detected by the temperature and humidity sensor.

[0089] S300: Acquire the ambient temperature detected by the temperature sensor.

[0090] S400: If the ambient temperature is lower than the preset temperature, the heater is controlled to turn on for a preset time.

[0091] S500: If the ambient temperature is higher than the preset temperature, the refrigerant concentration is compared with the preset refrigerant concentration to obtain a first comparison result; the refrigerant temperature and humidity are compared with the preset temperature and humidity to obtain a second comparison result.

[0092] S600: Generate a control instruction according to the first comparison result and the second comparison result to control the refrigerator to operate in a preset mode.

[0093] In some embodiments, the refrigerator refrigerant detection method further includes:

[0094] If the refrigerant concentration is less than the preset refrigerant concentration threshold and the refrigerant temperature and humidity are less than the preset temperature and humidity threshold, the refrigerator operation mode is controlled to remain unchanged.

[0095] If the refrigerant concentration is greater than a preset refrigerant concentration threshold or the refrigerant temperature and humidity are greater than a preset temperature threshold, the refrigerator is controlled to stop running.

[0096] It can be seen from the above technical scheme that the present application provides a refrigerator refrigerant detection system and method, the refrigerator refrigerant detection system includes: a refrigerant detection module, the refrigerant detection module is set in the space where the evaporator of the refrigerator is located, the refrigerant detection module includes a non-dispersive infrared sensor, a heater, and a temperature and humidity sensor; a temperature sensor, the temperature sensor is used to detect the ambient temperature of the environment where the refrigerant detection module is located; a controller, the controller is connected to the temperature sensor and the refrigerant detection module respectively; the controller is configured to: obtain the refrigerant concentration detected by the non-dispersive infrared sensor; obtain the refrigerant temperature and humidity detected by the temperature and humidity sensor; obtain the ambient temperature detected by the temperature sensor; if the ambient temperature is lower than the preset temperature, control the heater to turn on the preset time; if the ambient temperature is higher than the preset temperature, compare the refrigerant concentration with the preset refrigerant concentration to obtain a first comparison result; compare the refrigerant temperature and humidity with the preset temperature and humidity to obtain a second comparison result; according to the first comparison result and the second comparison result, generate a control instruction to control the refrigerator to operate in a preset mode. The refrigerant concentration and the refrigerant temperature and humidity are detected by the refrigerant detection module, and then determine whether a refrigerant leak occurs, so as to solve the problem that the refrigerator refrigerant leak is not easy to detect.

[0097] Similar parts between the embodiments provided in this application can be referenced to each other. The specific implementation methods provided above are only a few examples under the general concept of this application and do not constitute a limitation on the protection scope of this application. For those skilled in the art, any other implementation methods expanded based on the scheme of this application without creative work belong to the protection scope of this application.

Claims

1. A refrigerator refrigerant detection system, applied to a refrigerator, characterized in that: include: A refrigerant detection module, comprising a non-dispersive infrared sensor, a heater, and a temperature and humidity sensor; A temperature sensor, the temperature sensor is used to detect the ambient temperature of the environment in which the refrigerant detection module is located; A controller, wherein the controller is connected to the temperature sensor and the refrigerant detection module respectively; The controller is configured to: Obtaining the refrigerant concentration detected by the non-dispersive infrared sensor; Acquiring the refrigerant temperature and humidity detected by the temperature and humidity sensor; Acquiring the ambient temperature detected by the temperature sensor; If the ambient temperature is lower than a preset temperature, controlling the heater to turn on for a preset time; If the ambient temperature is higher than the preset temperature, the refrigerant concentration is compared with the preset refrigerant concentration to obtain a first comparison result; the refrigerant temperature and humidity are compared with the preset temperature and humidity to obtain a second comparison result; A control instruction is generated according to the first comparison result and the second comparison result to control the refrigerator to operate in a preset mode.

2. The refrigerator refrigerant detection system according to claim 1, characterized in that: The controller is also configured to: If the refrigerant concentration is less than a preset refrigerant concentration threshold and the refrigerant temperature and humidity are less than a preset temperature and humidity threshold, the refrigerator operation mode is controlled to remain unchanged.

3. The refrigerator refrigerant detection system according to claim 1, characterized in that: The controller is also configured to: If the refrigerant concentration is greater than a preset refrigerant concentration threshold or the refrigerant temperature and humidity are greater than a preset temperature threshold, the refrigerator is controlled to stop running.

4. The refrigerator refrigerant detection system according to claim 1, characterized in that: It also includes a terminal and a Bluetooth module, wherein the Bluetooth module includes a Bluetooth module and a WIFI module; the terminal is connected to the refrigerant detection module through the Bluetooth module; The controller is configured to: Receiving an information acquisition instruction generated by the terminal to obtain the refrigerant concentration and the refrigerant temperature and humidity detected by the refrigerant detection module; The refrigerant concentration and the refrigerant temperature and humidity are sent to the terminal through the Bluetooth module and the WIFI module to control the terminal to display the refrigerant concentration and the refrigerant temperature and humidity.

5. The refrigerator refrigerant detection system according to claim 4, characterized in that: The controller is also configured to: If the refrigerant concentration is greater than a preset refrigerant concentration threshold or the refrigerant temperature and humidity are greater than a preset temperature threshold, a warning instruction is generated to control the terminal to generate a warning prompt.

6. The refrigerator refrigerant detection system according to claim 1, characterized in that: The refrigerant detection module is also provided with a waterproof and breathable membrane.

7. The refrigerator refrigerant detection system according to claim 1, characterized in that: The refrigerant detection module is respectively provided with a pipe connecting the evaporator and the compressor of the refrigerator, and a pipe connecting the evaporator and the condenser.

8. A refrigerator refrigerant detection method, applied to the refrigerator refrigerant detection system according to any one of claims 1 to 7, characterized in that: include: Obtaining the refrigerant concentration detected by the non-dispersive infrared sensor; Obtain the refrigerant temperature and humidity detected by the temperature and humidity sensor; Get the ambient temperature detected by the temperature sensor; If the ambient temperature is lower than a preset temperature, the heater is controlled to turn on for a preset time; If the ambient temperature is higher than the preset temperature, the refrigerant concentration is compared with the preset refrigerant concentration to obtain a first comparison result; the refrigerant temperature and humidity are compared with the preset temperature and humidity to obtain a second comparison result; A control instruction is generated according to the first comparison result and the second comparison result to control the refrigerator to operate in a preset mode.

9. The refrigerator refrigerant detection method according to claim 8, characterized in that: Also includes: If the refrigerant concentration is less than a preset refrigerant concentration threshold and the refrigerant temperature and humidity are less than a preset temperature and humidity threshold, the refrigerator operation mode is controlled to remain unchanged; If the refrigerant concentration is greater than a preset refrigerant concentration threshold or the refrigerant temperature and humidity are greater than a preset temperature threshold, the refrigerator is controlled to stop running.

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