Method and device for detecting gas of refrigerator, refrigerator, storage medium

Abstract

The application relates to the technical field of intelligent household appliances, and discloses a method for detecting gas in a refrigerator, which comprises the following steps: in response to a gas detection instruction, determining a target storage compartment which needs to be subjected to gas detection; starting a target electric heating device in a gas extraction pipeline corresponding to the target storage compartment, and extracting the to-be-detected gas in the target storage compartment into a gas detection cavity for gas detection. The gas detection cavity is arranged outside the refrigerator, so that the low-temperature environment in the refrigerator is not affected. In addition, the to-be-detected gas flowing through the target heating device in the gas extraction pipeline corresponding to the target storage compartment is preheated, the influence of the temperature of different storage compartments and the length of the pipeline on the temperature of the to-be-detected gas is avoided, and the accuracy of the gas detection result is improved. The application further discloses a device for detecting gas in a refrigerator, a refrigerator and a storage medium.

Description

Technical Field

[0001] This application relates to the field of smart home appliance technology, such as a method and apparatus for detecting gas in a refrigerator, a refrigerator, and a storage medium. Background Technology

[0002] Currently, refrigerators store a wide variety of foods. During storage, different foods release different odors, and when these odors mix, they create unpleasant smells. Furthermore, food stored for extended periods without being detected can slowly spoil and even rot, releasing unpleasant odors in the process. Because a refrigerator is a closed space, these odors cannot escape, resulting in unpleasant smells inside. Existing gas sensors are typically placed in the cooling compartment or air ducts; however, due to the limited sensitivity at low temperatures, the accuracy of these sensors in monitoring characteristic gases such as refrigerator odors, food ripeness, and food spoilage is very low.

[0003] Related technologies disclose a refrigerator odor detection method and a refrigerator. The method includes: collecting gas from the refrigerator's cooling compartment into an independent detection space; heating the gas in the detection space to a first temperature using a heating device; and collecting odor data of the heated gas in the detection space. By collecting gas from the refrigerator into an independent detection space and heating the gas in the detection space before collecting its odor data, the accuracy of refrigerator odor detection is ensured, as the odor data is obtained at a certain temperature.

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

[0005] The relevant technology, by heating the gas in an independent detection space within the refrigeration compartment, ensures the accuracy of refrigerator odor detection to a certain extent. However, heating the gas in this independent detection space can affect the refrigerator's refrigeration operation, leading to unstable internal temperatures and thus impacting the preservation of items. Furthermore, because there are storage compartments with varying temperatures within the refrigerator, the corresponding extraction pipe lengths also differ, affecting the temperature of the gas being extracted to the gas detection chamber, resulting in inaccurate gas detection results. Summary of the Invention

[0006] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0007] This disclosure provides a method and apparatus for gas detection in a refrigerator, a refrigerator, and a storage medium. The aim is to avoid affecting the low-temperature environment inside the refrigerator during gas detection, thereby reducing the impact of different compartment temperatures and the length of the corresponding extraction pipe on gas detection and improving the accuracy of gas detection results.

[0008] In some embodiments, the refrigerator includes a receiving cavity and an external gas detection cavity. The receiving cavity includes a plurality of storage compartments connected to the gas detection cavity via corresponding extraction pipes. Each extraction pipe is provided with an electric heating device for heating the gas inside the pipe. The method includes: in response to a gas detection command, determining a target storage compartment for gas detection; activating the target electric heating device in the extraction pipe corresponding to the target storage compartment, and extracting the gas to be tested from the target storage compartment into the gas detection cavity for gas detection.

[0009] In some embodiments, the apparatus includes a processor and a memory storing program instructions, wherein the processor is configured to execute the method for detecting gas in a refrigerator when executing the program instructions.

[0010] In some embodiments, the refrigerator includes: a receiving cavity and an external gas detection cavity. The receiving cavity includes a plurality of storage compartments connected to the gas detection cavity via corresponding exhaust pipes. The gas detection cavity is provided with a gas sensor for gas detection and a compensating electric heating device for heating the gas in the cavity. Each exhaust pipe is provided with an electric heating device for heating the gas in the pipe. The refrigerator also includes the aforementioned device for gas detection.

[0011] In some embodiments, the storage medium stores program instructions that, when executed, perform the above-described method for detecting refrigerator gases.

[0012] The method and apparatus for detecting gas in a refrigerator, the refrigerator, and the storage medium provided in this disclosure can achieve the following technical effects:

[0013] By placing the gas detection chamber outside the refrigerator, gas is drawn from inside the refrigerator and detected in the external chamber. This increases the detection temperature of the gas sensor, thereby improving accuracy, while avoiding interference with the low-temperature environment inside the refrigerator, which could affect the preservation of items. Furthermore, a target heating device within the extraction pipe corresponding to the target storage compartment preheats the gas flowing into the detection chamber, regulating its temperature and preventing the influence of temperature variations between different storage compartments and pipe length on gas detection. By minimizing the impact of low-temperature conditions on the refrigerator's internal environment and the preservation of items during gas detection, the accuracy of gas detection results is improved.

[0014] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0015] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0016] Figure 1 This is a schematic diagram of a method for detecting gas in a refrigerator provided in an embodiment of this disclosure;

[0017] Figure 2 This is a schematic diagram of another method for detecting gas in a refrigerator provided in an embodiment of this disclosure;

[0018] Figure 3 This is a schematic diagram of another method for detecting gas in a refrigerator provided in an embodiment of this disclosure;

[0019] Figure 4 This is a schematic diagram of another method for detecting gas in a refrigerator provided in an embodiment of this disclosure;

[0020] Figure 5 This is a schematic diagram of another method for detecting gas in a refrigerator provided in an embodiment of this disclosure;

[0021] Figure 6 This is a schematic diagram of the structure of a refrigerator provided in an embodiment of this disclosure;

[0022] Figure 7 This is a schematic diagram of the structure of another refrigerator provided in an embodiment of this disclosure;

[0023] Figure 8 This is a schematic diagram of the structure of another refrigerator provided in an embodiment of this disclosure;

[0024] Figure 9 This is a schematic diagram of a device for detecting gas in a refrigerator provided in an embodiment of this disclosure;

[0025] Figure 10 This is a schematic diagram of the structure of another refrigerator provided in an embodiment of this disclosure;

[0026] Figure 11 This is a schematic diagram of the structure of another refrigerator provided in an embodiment of this disclosure;

[0027] Figure 12 This is a schematic diagram of the structure of another refrigerator provided in an embodiment of this disclosure;

[0028] Figure 13 This is a partial structural schematic diagram of an air extraction pipeline provided in an embodiment of this disclosure;

[0029] Figure 14 This is a partial structural schematic diagram of another air extraction pipeline provided in an embodiment of this disclosure;

[0030] Figure 15 This is a partial structural schematic diagram of another air extraction pipeline provided in an embodiment of this disclosure;

[0031] Figure 16 This is a schematic diagram of a device for detecting gas in a refrigerator provided in an embodiment of this disclosure.

[0032] Figure label:

[0033] 10. Housing; 101. Receiving cavity; 102. Freezer chamber; 103. Compressor compartment; 104. Compressor; 105. Storage compartment; 20. Gas detection chamber; 201. Gas extraction pipeline; 202. Second pipeline; 203. Third pipeline; 204. First drive device; 205. Second drive device; 206. Third drive device; 30. Adsorption device; 301. Adsorption column; 302. Adsorption coating; 303. Separation membrane; 40. Colorimetric gas sensor; 50. Detection equipment. Detailed Implementation

[0034] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0035] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0036] Unless otherwise stated, the term "multiple" means two or more.

[0037] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0038] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0039] The term "correspondence" can refer to an association or binding relationship. The correspondence between A and B means that there is an association or binding relationship between A and B.

[0040] Combination Figures 6 to 15 As shown, this embodiment of the present disclosure provides a refrigerator, which includes a cabinet 10 defining a receiving cavity 101 for placing food or other items. The refrigerator includes a refrigeration assembly, which includes an evaporator, a condenser, a compressor 104, and a throttling device connected in communication. The evaporator exchanges heat with the receiving cavity 101, thereby reducing the temperature of the receiving cavity 101.

[0041] Optionally, the outer side of the housing 10 defines a compressor compartment 103, and the compressor 104 is located inside the compressor compartment 103.

[0042] like Figures 6 to 13 As shown in the illustration, this disclosure also provides an apparatus for detecting gas in a refrigerator. The apparatus includes a gas detection chamber 20, an extraction pipe 201, and a detection device 50. The gas detection chamber 20 is adapted to be located outside the refrigerator body 10. The extraction pipe 201 is adapted to connect the receiving cavity 101 and the gas detection chamber 20. Gas in the receiving cavity 101 can flow into the detection chamber 20 through the extraction pipe 201. The detection device 50 is located inside the gas detection chamber 20 and is used to detect the gas inside the gas detection chamber 20. The detection device 50 can be a gas sensor for analyzing gases.

[0043] In this embodiment, the gas detection chamber 20 is connected to the receiving chamber 101 via the suction pipe 201, allowing gas in the receiving chamber 101 to flow into the detection chamber 20 through the first pipe 201. This reduces the impact of complex environments on the detection device 50 (corresponding to the gas sensor). For example, the detection device 50 is not affected by the complex environment inside the refrigerator, such as fluctuating temperature and humidity, thereby improving the sensitivity, accuracy, and stability of the detection device 50, and also extending its service life.

[0044] Optionally, the device for detecting gas in a refrigerator further includes a first driving device 204, which is connected to the extraction pipe 201. The first driving device 204 drives the gas in the receiving cavity 101 to flow into the gas detection chamber 20 through the extraction pipe 201. The first driving device 204 can drive the gas in the receiving cavity 101 to flow into the gas detection chamber 20. This allows the gas in the receiving cavity 101 to be extracted into the gas detection chamber 20 for detection.

[0045] It should be noted that the device for detecting gas in a refrigerator may not require the first driving device 204. In other words, the gas in the receiving cavity 101 can flow into the gas detection cavity 20 on its own. For example, when the length of the extraction pipe 201 is short or the pressure difference is large, the gas in the receiving cavity 101 can enter the gas detection cavity 20 on its own through the extraction pipe 201. Optionally, a control switch can be provided on the extraction pipe 201 to control its connection or disconnection.

[0046] Optionally, such as Figure 9 As shown, the first driving device 204 is located inside the suction pipe 201. When the first driving device 204 is working, it can drive the gas in the receiving cavity 101 to flow into the gas detection cavity 20. When the first driving device 204 is not working, the suction pipe 201 is not connected, and the gas in the gas detection cavity 20 cannot flow into the gas detection cavity 20 through the suction pipe 201. Optionally, the first driving device 204 is located at the outlet of the suction pipe 201.

[0047] Optionally, the first drive unit 204 can be a fan or an air pump.

[0048] Optionally, the device for detecting gas in a refrigerator further includes a second conduit 202 and / or a third conduit 203. The second conduit 202 connects the gas detection chamber 20 to the outside and is used to introduce outside air into the gas detection chamber 20. The third conduit 203 connects the gas detection chamber 20 to the outside and is used to discharge the airflow from the gas detection chamber 20 to the outside.

[0049] In this embodiment, the third pipe 203 is used to discharge the gas detected in the gas detection chamber 20 after detection. The second pipe 202 is used to introduce fresh outside air into the gas detection chamber 20. This can be understood as follows: after gas detection in the gas detection chamber 20, fresh outside air replaces the complex gas inside the gas detection chamber 20. This allows the sensor to fully recover, extending the lifespan of the detection device 50. Furthermore, in fresh outside air, the detection device 50 can repeatedly correct its zero point, improving the detection accuracy of the detection device 50.

[0050] Optionally, the device for detecting gas in a refrigerator also includes a second driving device 205, which is connected to the second pipe 202 and can drive outside air to flow into the gas detection chamber 20 through the second pipe 202.

[0051] In this embodiment, the second driving device 205 can provide driving force so that the external airflow flows into the gas detection chamber 20 through the second pipe 202.

[0052] Optionally, such as Figure 9 As shown, the second driving device 205 is located inside the second pipeline 202. When the second driving device 205 is working, external gas can flow into the gas detection chamber 20 through the second pipeline 202. When the second driving device 205 is not working, the second pipeline 202 is not connected, and external gas cannot flow into the gas detection chamber 20 through the second pipeline 202. Optionally, the second driving device 205 is located at the outlet of the second pipeline 202. Optionally, the second driving device 205 can be a fan or a vacuum pump.

[0053] Optionally, the device for detecting gas in a refrigerator further includes a third driving device 206, which is connected to a third conduit 203 and is capable of driving the gas in the gas detection chamber 20 to flow out to the outside. In the embodiment, the third driving device 206 can provide driving force to cause the gas in the gas detection chamber 20 to flow out to the outside.

[0054] Optionally, the third driving device 206 is located inside the third pipeline 203. When the third driving device 206 is working, it can drive the gas in the gas detection chamber 20 to flow out to the outside. When the third driving device 206 is not working, the third pipeline 203 is not connected, and the gas in the gas detection chamber 20 cannot be discharged through the third pipeline 203. Optionally, the third driving device 206 is located at the inlet of the third pipeline 203.

[0055] Alternatively, the third drive unit 206 can be a fan or an air pump.

[0056] Optionally, the device for detecting gas in the refrigerator also includes a damper, which is controllably located in the third pipe 203 for opening or closing the third pipe 203.

[0057] In this embodiment, the third pipeline 203 may not have a third drive device 206. Instead, the third pipeline 203 is equipped with a damper. When gas needs to be exhausted, the damper is opened to release the gas from the gas detection chamber 20. During detection, the damper is closed to ensure no gas exchange occurs. Using a damper results in lower noise and power consumption.

[0058] In one specific embodiment, the first driving device 204 includes a vacuum pump, and / or the second driving device 205 is a fan. In this embodiment, the first driving device 204 needs to extract gas from the receiving cavity 101. The distance between the gas detection chamber 20 and the receiving cavity 101 varies depending on its location, and some pipelines are relatively long. To ensure that gas in the receiving cavities 101 at different locations can be extracted into the gas detection chamber 20, the first driving device 204 includes a vacuum pump with strong suction to improve extraction efficiency. The second pipeline 202 is relatively short; therefore, using a fan as the second driving device 205 to replace the gas in the gas detection chamber 20 can meet the requirements, and using a fan can reduce energy consumption.

[0059] like Figures 6 to 8 As shown, the gas detection chamber 20 can be located at different positions on the outside of the cabinet 10, and the user can set the position of the gas detection chamber 20 according to their needs. Optionally, the gas detection chamber 20 is suitable to be located at the top of the cabinet 10; and / or, the gas detection chamber 20 is suitable to be located on the side of the cabinet 10; and / or, the gas detection chamber 20 is suitable to be located inside the compressor compartment 103 of the refrigerator to increase the temperature of the gas inside the gas detection chamber 20.

[0060] In this embodiment, when the gas detection chamber 20 is located at the top of the cabinet 10, it does not affect the overall appearance of the refrigerator and is convenient for maintenance. The gas path from the refrigerator compartment (the refrigeration compartment 101 with refrigeration function) to the gas detection chamber 20 is short, saving costs. Furthermore, its proximity to the main control board facilitates wiring. The gas detection chamber 20 can be located on the side of the cabinet 10, such as on the surface of the cabinet 10 or on the door, making maintenance convenient and visually accessible. Optionally, the gas detection chamber 20 can be located in the middle of the cabinet 10, thus placing it close to multiple refrigeration compartments 101, facilitating the arrangement of multiple exhaust pipes 201 inside the refrigerator and enabling the use of the same sensor to detect the gas environment in different refrigeration compartments 101. Optionally, the gas detection chamber 20 can be placed inside the compressor compartment 103, without affecting the appearance of the refrigerator. The higher temperature near the compressor 104 further activates gas molecules, allowing for a more complete sensing response and improved sensitivity.

[0061] Alternatively, the detection chamber can also be located outside the compressor chamber 103, close to the compressor chamber 103, which can also increase the temperature inside the gas detection chamber 20.

[0062] Optionally, the refrigerator also includes an outer casing that covers the outside of the vent pipe 201, thereby preventing the vent pipe 201 from being exposed on the outside of the refrigerator and affecting its appearance.

[0063] Optionally, the evacuation line 201 is at least partially bent to increase the length of the evacuation line 201.

[0064] In this embodiment, the increased length of the extraction pipe 201 allows for more time for the gas to flow at room temperature, thereby increasing the temperature of the gas flowing into the gas detection chamber 20. This ensures that the temperature difference between the gas to be detected flowing into the gas detection chamber 20 and the original gas temperature within the chamber is smaller or consistent, reducing the impact of temperature fluctuations on the sensor and thus improving the sensor's detection sensitivity.

[0065] Optionally, the exhaust pipe 201 can be S-shaped, spiral-shaped, or "mosquito coil-shaped". Any method that can increase the flow length of gas in the exhaust pipe 201 is an optional embodiment of this application.

[0066] Optionally, such as Figure 10 As shown, when the receiving cavity 101 includes several storage chambers 105, the number of exhaust pipes 201 is the same as the number of storage chambers 105 and corresponds one-to-one. All of the exhaust pipes 201 are suitable for connecting a gas detection cavity 20 and multiple storage chambers 105.

[0067] In this embodiment, when the housing 10 defines multiple storage compartments 105, different storage compartments 105 can hold different types of items or items with different temperature requirements. Each storage compartment 105 is connected to a gas detection chamber 20 via an exhaust pipe 201, so that the gas detection chamber 20 can detect the gas in each storage compartment 101.

[0068] Optionally, each extraction pipe 201 is provided with a switch, and each switch is used to control the opening and closing of its corresponding extraction pipe 201.

[0069] In this embodiment, the opening and closing of each exhaust pipe 201 is controllable, which enables the selective extraction and detection of gas from different storage compartments 105 by a single sensor, thereby indicating the odor and / or freshness or rot of food in different storage compartments 105.

[0070] It should be noted that the number of exhaust pipes 201 can also be different from the number of storage rooms 105. It can be more or less than the number of storage rooms 105. Users can set it according to their needs.

[0071] Optionally, the device for detecting refrigerator gas also includes a purification device, which is connected to the outlet end of the third pipe 203 so that the gas flowing out of the third pipe 203 is purified by the purification device before flowing to the outside.

[0072] In this embodiment, the purification device can purify the gas discharged from the gas detection chamber 20 to ensure the cleanliness of the discharged gas.

[0073] Optionally, the purification device includes a gas absorption solution, that is, the outlet of the third pipe 203 is inserted into the gas absorption solution, which absorbs some of the soluble heavy odor gaseous substances before discharging them.

[0074] Optionally, the purification device can also use adsorption materials such as activated carbon and silica gel to adsorb odorous gases. Optionally, the purification device can also be a heating and temperature control device. After gas detection in the gas detection chamber 20 is completed, the heating and temperature control device adjusts the temperature to a high temperature, causing odorous substances such as esters, aldehydes, and aromatics to oxidize or decompose, reducing their impact on indoor gases. During heating and exhaust, the sensor does not operate and / or transmits and / or processes the data collected by the sensor.

[0075] In some alternative embodiments, the gas drawn from the receiving cavity 101 to the gas detection cavity 20 by the first driving device 204 is defined as the gas to be detected, and the detection device 50 can be configured to detect the target gas in the gas to be detected. For example... Figures 13 to 15 As shown, the device for detecting refrigerator gas also includes an adsorption device 30, which is located in the gas extraction pipeline 201 and / or the gas detection chamber 20. The adsorption device 30 is used to adsorb non-target gases in the gas to be detected.

[0076] In this embodiment, when the detection device 50 in the gas detection chamber 20 needs to detect one or more target gases, the adsorption device 30 can adsorb all or part of the non-target gases in the containment chamber 101, so that only the target gases enter the gas detection chamber 20, thereby reducing the interference of non-target gases on the detection device 50 and improving the selectivity and accuracy of the detection device 50.

[0077] It should be noted that the adsorption device 30 provided in the exhaust pipe 201 of this embodiment can be applied not only to the scheme where the gas detection chamber 20 is external, but also to the exhaust pipe in the scheme where the gas detection chamber 20 is located on the inner wall or in the air duct in the related art.

[0078] In some alternative embodiments, such as Figure 13As shown, the adsorption device 30 includes an adsorption column 301, which comprises multiple adsorption particles. These adsorption particles fill the exhaust pipe 201 to form the adsorption column 301. In this embodiment, the adsorption column 301 can adsorb non-target gases, and it is easy to process and fix within the exhaust pipe 201.

[0079] Optionally, the adsorbent particles are porous adsorbent particles, specifically including one or more of the following: silica gel, activated carbon, polydimethylsiloxane, polyethylene glycol, cyanopropylphenyl dimethylpolysiloxane, calcium chloride, activated alumina, sodium sulfate, activated carbon, carbon nanotubes, etc., materials capable of adsorbing water molecules and interfering gases. Optionally, the particle size range of the adsorbent particles is (0 μm, 100 μm), for example, 1 μm, 5 μm, 10 μm, 50 μm, 60 μm, 100 μm. The shape of the adsorbent particles can be various, such as spherical and / or cuboid and / or cubic and / or cylindrical and / or irregular particles, etc.

[0080] Optionally, the adsorption device 30 further includes end caps, which are respectively disposed at the air inlet and air outlet of the adsorption column 301 for fixing the adsorption column 301. In this embodiment, the end caps can fix the adsorption column 301 and prevent the adsorption column 301 from falling off or moving. Specifically, the end caps can be a breathable membrane and / or a mesh and / or absorbent cotton, etc.

[0081] Optionally, the end cap may also include a water-absorbing agent, which can enhance the water absorption effect. For example, the water-absorbing agent may be anhydrous calcium sulfate, anhydrous calcium chloride, etc.

[0082] Optionally, the length of the adsorption column 301 can be (0m, 1m). The length of the adsorption column 301 can be other lengths, which can be set according to the length of the suction line 201. Optionally, the adsorption column 301 can be a single section or multiple sections. For example, the length of the adsorption column 301 can be 0.5m, 0.6m, 0.8m, 1m, etc.

[0083] In other alternative embodiments, such as Figure 14 As shown, the adsorption device 30 includes an adsorption coating 302, which is disposed on the inner wall of the extraction pipeline 201. In this embodiment, the adsorption liquid is coated on the pipe wall of the extraction pipeline 201 to form the adsorption coating 302. The adsorption coating 302 can also adsorb non-target gases within the extraction pipeline 201. Since the adsorption coating 302 is directly coated on the pipe wall of the extraction pipeline 201, the total inner wall area of ​​the column is relatively large, and the coating can be very thin. This reduces the mass transfer resistance between the gas and liquid phases, significantly improving column efficiency and increasing separation effect.

[0084] Specifically, the adsorption coating liquid may include one or more of polydimethylsiloxane, polyethylene glycol, phenyl-containing polydimethylsiloxane, cyano-containing polymethylsiloxane, and trifluoropropyl-containing polymethylsiloxane.

[0085] Optionally, the thickness of the adsorption coating 302 is (0 μm, 200 μm). If the adsorption coating 302 is too thick, it will reduce the flow area of ​​the extraction pipe 201, thereby affecting the smoothness of gas flow within the extraction pipe 201. For example, the thickness of the adsorption coating 302 can be 1 μm, 10 μm, 50 μm, 100 μm, 150 μm, or 200 μm.

[0086] Optionally, the length of the adsorption coating 302 is (0m, 20m). Optionally, the adsorption coating 302 is disposed on the inner wall of the extraction pipe 201 along the circumference of the extraction pipe 201. Optionally, the adsorption coating 302 can be a single section or multiple sections. Optionally, the adsorption coating 302 can be disposed in part of the extraction pipe 201 or in all of the extraction pipe 201. The length of the adsorption coating 302 can be 1m, 10m, 15m, or 20m.

[0087] In some alternative embodiments, such as Figure 15 As shown, the adsorption device 30 includes a separation membrane 303, which is disposed within the extraction pipe 201. The separation membrane 303 can filter the gas flowing into the detection device. In this embodiment, the separation membrane 303 can filter non-target gases from the extraction pipe 201. The separation membrane 303 is easy to install and replace, thus improving the selectivity and accuracy of the sensor detection.

[0088] Optionally, the separation membrane 303 comprises a porous organic polymer material. The separation membrane 303 comprises porous organic polymer materials such as polytetrafluoroethylene, polyvinylidene fluoride, and polydimethylsiloxane, which have the function of isolating water molecules and / or isolating non-target gas molecules.

[0089] Optionally, the pore size of the separation membrane 303 is (0 mm, 2 mm). For example, the pore size can be 0.5 mm, 1 mm, 1.5 mm, 2 mm, etc. Optionally, the thickness of the separation membrane 303 is (0 mm, 20 mm) to ensure the filtration effect of the separation membrane 303. For example, the thickness of the separation membrane 303 can be 1 mm, 5 mm, 10 mm, 15 mm, 20 mm, etc.

[0090] Optionally, the separation membrane 303 can be located at the inlet end, outlet end, and / or intermediate section of the suction line 201. This further increases the filtration efficiency of the separation membrane 303.

[0091] Optionally, the separation membrane 303 is matched with the extraction pipeline 201, specifically the shape and outer diameter of the separation membrane 303 are consistent with the shape and inner diameter of the extraction pipeline 201.

[0092] Optionally, the separation membrane 303 can be end-group modified to improve its binding to non-target gases. For example, modification with polar bonds such as amino or hydroxyl groups can improve its binding performance to polar gas molecules.

[0093] Optionally, such as Figure 12 As shown, the device for detecting gas in a refrigerator also includes a colorimetric gas sensor 40, which is connected to the gas detection chamber 20 and can adjust the color according to the gas information in the gas detection chamber 20.

[0094] In this embodiment, color changes provide feedback on the refrigerator's gas information, enabling users to have an intuitive understanding of the odor information inside the refrigerator. Optionally, there can be multiple colorimetric gas sensors 40, such as multiple colorimetric gas sensors 40 forming a colorimetric sensor array, which can reflect the gas information of different gases inside the refrigerator.

[0095] Optionally, the receiving cavity 101 includes a freezer chamber 102, and a portion of the evacuation line 201 is located within the freezer chamber 102.

[0096] In this embodiment, the extraction pipe 201 is partially located within the freezer chamber 102. This means that the gas in the extraction pipe 201 can pass through the freezer chamber 102 and flow into the gas detection chamber 20. This refrigeration dehumidification removes humidity from the gas being detected, ensuring that the humidity in the gas detection chamber 20 remains constant at a low level during gas detection, thus improving the sensor's sensitivity and accuracy. Refrigeration dehumidification cools the air by cooling it with a cold surface. When the air temperature drops below the dew point, water vapor condenses and precipitates. Refrigeration dehumidification is stable, reliable, and can operate continuously. Within a refrigerator environment, this detection method is stable, reliable, and has a long lifespan.

[0097] Optionally, the device for detecting gas in a refrigerator further includes a first heating device disposed inside the gas detection chamber 20, which is used to heat the gas inside the gas detection chamber 20.

[0098] Because the gas is dehumidified by freezing in the freezing chamber 102, although the humidity of the gas decreases, the temperature of the gas also decreases. This results in a large temperature difference between the gas entering the gas detection chamber 20 and the original gas in the gas detection chamber 20, which affects the detection sensitivity and accuracy of the detection device 50. Therefore, a first heating device is installed in the gas detection chamber 20 to reheat the gas flowing in through the freezing chamber 102, thereby reducing the temperature difference between the gas to be detected and the original gas in the gas detection chamber 20, and thus improving the detection sensitivity of the detection device 50.

[0099] Optionally, the device for detecting gas in a refrigerator also includes a second heating device located in the extraction pipe 201, which can heat the gas flowing into the gas detection chamber 20 from the extraction pipe 201.

[0100] Optionally, when there are multiple exhaust pipes 201, each of the multiple exhaust pipes 201 partially passes through the freezer chamber 102, so that the gas in each exhaust pipe 201 can be dehumidified by freezing.

[0101] Optionally, the heating device includes a heating wire or a heating block.

[0102] It should be noted that the exhaust pipe 201 of this application is located in the freezer chamber 102, and a heating device is installed in the gas detection chamber 20. This can be applied not only to the scheme where the gas detection chamber 20 is external, but also to the scheme where the gas detection chamber 20 is located on the inner wall or in the air duct in the related technology.

[0103] Optionally, the device for detecting gas in a refrigerator also includes a temperature measuring device and a controller. The temperature measuring device is located inside the gas detection chamber 20 and is used to detect the temperature inside the gas detection chamber 20. The controller is electrically connected to the temperature measuring device, the detection device, and the heating device, and is configured to control the operation of the heating device and the detection device according to the temperature of the gas detection chamber 20.

[0104] In this embodiment, the temperature measuring device is used to detect the temperature inside the gas detection chamber 20, ensuring that the gas temperature inside the gas detection chamber 20 reaches the target temperature. After the heating device heats the gas inside the gas detection chamber 20 to the target temperature, the temperature measuring device transmits the temperature information to the controller, which then controls the heating device to stop working. This improves the intelligence and automation of the detection device.

[0105] Optionally, the temperature measuring device and the heating device are used in combination to ensure that the temperature of the gas detected in the gas detection chamber 20 is the same each time.

[0106] Optionally, the separation membrane 303 is wrapped around the outside of the sensor. In this way, in a complex gas atmosphere, all or part of the non-target gas is filtered by the separation membrane and cannot contact the sensor, while only the target gas interacts with the sensor, thereby improving the selectivity and accuracy of the sensing detection.

[0107] Optionally, zero-point calibration is performed during external air replacement. Zero-point calibration data is collected at intervals, and the maximum and minimum values ​​are removed and averaged to avoid the impact of intermittent polluting gases such as kitchen fumes being treated as replacement gases.

[0108] Optionally, the device for detecting refrigerator gases also includes a waterproof and breathable membrane located at the outlet end of the second pipeline 202. The waterproof and breathable membrane can seal the detection chamber to prevent moisture from affecting the detection of the detection equipment 50.

[0109] Optionally, the outlet end of the second pipe 202 adopts a pointed design to avoid the influence of condensate.

[0110] Optionally, the device for detecting refrigerator gases also includes a shockproof cover, which is located on the outside of the detection device 50 and can reduce the impact of compressor 104 vibration on the detection device 50.

[0111] Optionally, the shockproof outer cover may include foam pads, silicone pads, etc.

[0112] Optionally, the controller is electrically connected to the first drive device 204, the second drive device 205 and the third drive device 206, and the controller can control the operation of the first drive device 204, the second drive device 205 and the third drive device 206 according to instructions.

[0113] In one specific embodiment, the device for detecting refrigerator gas does not include the second pipeline 202. The first driving device 204 can continuously draw the gas to be detected from inside the refrigerator into the gas detection chamber 20, and the detection device 50 continuously monitors it to improve detection sensitivity.

[0114] In another specific embodiment, the device for refrigerator gas detection also includes an odor detection device 50 and a time acquisition device. The controller periodically controls the first driving device 204 to extract gas from the refrigerator into the gas detection chamber 20 for testing, according to a preset time. After the test is completed, the controller controls the third driving device 206 to expel the refrigerator gas from the gas detection chamber 20, and then controls the second driving device 205 to extract external gas for complete replacement. The gas detection chamber 20 is then kept in a clean external gas environment until the next detection begins. This intermittent operation saves power and reduces noise. The sensor's lifespan is extended as it operates in a clean air environment for an extended period. The sensor can perform zero-point calibration in clean air each time, improving detection accuracy.

[0115] In another specific embodiment, when the user wants to perform a test, the controller receives the user's instruction and controls the first drive device 204 to draw gas from inside the refrigerator into the gas detection chamber 20 for testing. After the test is completed, the controller controls the third drive device 206 to discharge the refrigerator gas from the gas detection chamber 20, and controls the second drive device 205 to draw in external gas for complete replacement. The gas detection chamber 20 is then kept in a clean external gas environment until the next test begins. This allows the system to operate only when needed, saving power and reducing noise. The sensor's lifespan is extended because it is kept in a clean air environment for extended periods; the sensor can also perform zero-point calibration in clean air each time, improving detection accuracy.

[0116] This disclosure also provides a refrigerator, which includes the refrigerator gas detection device of any of the above embodiments.

[0117] The refrigerator provided in this disclosure includes the refrigerator gas detection device of any of the above embodiments, and therefore has the beneficial effects of the refrigerator gas detection device of any of the above embodiments, which will not be repeated here.

[0118] It should be noted that the device for detecting gas in a refrigerator provided in this embodiment can be applied not only to refrigerators, but also to freezers, freezers or other refrigeration equipment.

[0119] Based on the refrigerator structure described above, this disclosure provides a method for detecting gases in a refrigerator. For example... Figure 1 As shown, the method includes:

[0120] S01, in response to the gas detection command, the refrigerator draws the gas to be tested from the containment chamber into the gas detection chamber for gas detection.

[0121] S02, after the gas detection is completed, the refrigerator draws in external air to replace the gas already tested in the gas detection chamber.

[0122] The method for detecting gas in a refrigerator provided in this disclosure involves placing the gas detection chamber outside the refrigerator and drawing gas from inside the refrigerator into the external gas detection chamber for detection. This increases the detection temperature of the gas sensor, thereby improving detection accuracy, while also avoiding impact on the low-temperature environment inside the refrigerator, which could affect the preservation of items. Furthermore, since the gas detection chamber is located outside the refrigerator, it is convenient to draw clean air from the external environment to perform zero-point calibration on the gas sensor inside the chamber, greatly improving the sensitivity and stability of the gas sensor and extending its service life.

[0123] Optionally, the refrigerator draws the gas to be tested from the containment cavity into the gas detection cavity for gas detection, including: the refrigerator acquiring the volume of the gas detection cavity; the refrigerator drawing the gas to be tested from the containment cavity into the gas detection cavity in a manner corresponding to the volume of the gas detection cavity; and the refrigerator detecting the gas to be tested.

[0124] In this method, the gas inside the refrigerator is extracted into the gas detection chamber for testing. The amount of gas extracted affects the accuracy of the test. Therefore, by extracting the gas to be tested in a manner appropriate to the volume of the gas detection chamber, the amount of gas extracted each time can be kept consistent and suitable, thereby ensuring the accuracy of each gas test and improving the stability and precision of the gas detection.

[0125] Optionally, the refrigerator draws the gas to be tested from the containment cavity into the gas detection cavity in a manner corresponding to the volume of the gas detection cavity, including: when the volume of the gas detection cavity is less than a volume threshold, the refrigerator continuously draws the gas to be tested from the containment cavity until all the gas in the gas detection cavity is replaced by the gas to be tested; when the volume of the gas detection cavity is greater than or equal to a volume threshold, the refrigerator draws a set volume of the gas to be tested into the gas detection cavity.

[0126] In this way, when the volume of the gas detection chamber is less than the volume threshold, the volume of the gas detection chamber is small, and the time required to fill the chamber is short. Therefore, continuously extracting the test gas from the chamber until it is completely replaced ensures that the amount of gas extracted each time is consistent, improving the accuracy and stability of gas detection. When the volume of the gas detection chamber is greater than or equal to the volume threshold, the volume is large, and filling the chamber would take longer. Therefore, extracting a set volume of test gas into the detection chamber helps maintain a consistent amount of gas extracted each time, improving the accuracy and stability of the detection.

[0127] Optionally, the refrigerator determines whether the gas in the gas detection chamber has been completely replaced with the gas to be tested by the following method: the refrigerator obtains the gas flow rate during the evacuation; the refrigerator determines the replacement time based on the gas flow rate and the volume of the gas detection chamber; if the evacuation time reaches the replacement time, the refrigerator determines that the gas in the gas detection chamber has been completely replaced with the gas to be tested.

[0128] In this way, based on whether the replacement time has been reached, it is possible to accurately determine whether all the gas in the gas detection chamber has been replaced by the gas to be tested.

[0129] Optionally, the refrigerator determines whether the gas in the gas detection chamber has been completely replaced by the gas to be tested using the following method: the refrigerator detects the gas concentration in the gas detection chamber; if the gas concentration is greater than the concentration threshold, the refrigerator determines that the gas in the gas detection chamber has been completely replaced by the gas to be tested.

[0130] In this way, by detecting the gas concentration, it is determined whether all the gas in the gas detection chamber has been replaced by the gas to be tested. As the sensor response value changes, the sensor response value increases with the increase of the concentration of the gas to be tested in the refrigerator. When the sensor response value no longer increases, it means that the gas concentration cannot increase at this time, that is, the gas in the gas detection chamber has been completely replaced by the gas to be tested, so as to accurately determine whether the gas in the gas detection chamber has been replaced by the gas to be tested.

[0131] Optionally, the refrigerator draws a set volume of the gas to be tested into the gas detection chamber, including: the refrigerator determining the target pumping power and target pumping time based on the set volume; the refrigerator drawing the gas to be tested from the containment chamber into the gas detection chamber according to the target pumping power and target pumping time.

[0132] In this way, based on the set volume, i.e. the amount of gas to be extracted, the target pumping power and target pumping time are determined. By pumping the gas to be tested according to the target pumping power and target pumping time, the set volume of gas to be tested can be accurately extracted into the gas detection chamber, thus making the gas detection results more accurate.

[0133] Optionally, the refrigerator extracts the measured gas from the external air replacement gas detection chamber, and further includes: the refrigerator setting a recovery cycle based on the detection results; and the refrigerator extracting the measured gas from the external air replacement gas detection chamber according to the recovery cycle.

[0134] The greater the difference between the gas detection result and the standard detection result, the shorter the response period; conversely, the greater the difference, the longer the response period.

[0135] Therefore, if the gas detection result differs significantly from the normal gas detection result, it indicates that the gas sensor is more susceptible to gas interference, requiring frequent zero-point correction to restore the sensor's sensitivity. Thus, setting a recovery period based on the detection results allows for precise restoration of the gas sensor's detection capability. This avoids an excessively long recovery period, leading to insufficient recovery capability, or an excessively short recovery period, resulting in frequent zero-point correction and excessive energy consumption.

[0136] This disclosure provides a method for detecting gases in a refrigerator. For example... Figure 2 As shown, the method includes:

[0137] S21, the refrigerator responds to the gas detection command and determines the current gas detection stage.

[0138] S22, when the refrigerator is currently in the gas detection stage of the extraction stage, the first drive device is activated to extract the gas to be tested from the containment cavity into the gas detection cavity for gas detection.

[0139] S23, when the refrigerator is currently in the gas detection phase of the replacement phase, the second drive device is activated to draw in external air to replace the measured gas in the gas detection chamber.

[0140] The first driving device can be a fan or an air pump. When the length of the extraction pipeline is greater than or equal to a set length, the air pump is used; when the length of the extraction pipeline is less than the set length, the fan is used. The second driving device can also be a fan or an air pump. When the length of the replacement pipeline is greater than or equal to the set length, the air pump is used; when the length of the replacement pipeline is less than the set length, the fan is used. In this way, when the pipeline is too long, the air pump can increase efficiency, and when the pipeline is too short, the fan can reduce energy consumption.

[0141] The method for gas detection in a refrigerator provided in this disclosure involves placing the gas detection chamber outside the refrigerator and drawing gas from inside the refrigerator into the external gas detection chamber for detection. This improves detection accuracy by increasing the detection temperature of the gas sensor while avoiding impact on the low-temperature environment inside the refrigerator, which could affect the preservation of items. Furthermore, by drawing gas in a manner corresponding to the current gas detection stage, the efficiency of gas extraction can be improved. By avoiding impact on the low-temperature environment inside the refrigerator during gas detection, the efficiency and accuracy of refrigerator gas detection are improved.

[0142] Optionally, the refrigerator activates the first driving device, including: the refrigerator acquiring the volume of the gas detection chamber; the refrigerator determining the extraction method of the gas to be tested in the chamber based on the volume of the gas detection chamber; and the refrigerator activating the first driving device based on the extraction method.

[0143] The refrigerator determines the extraction method of the gas to be tested in the containment cavity based on the volume of the gas detection cavity, which is the same as the above-mentioned method of determining the extraction method of the gas to be tested in the containment cavity based on the volume of the gas detection cavity, and will not be described in detail here.

[0144] In this way, the gas inside the refrigerator is extracted into the gas detection chamber for testing. The amount of gas extracted affects the accuracy of the test. Therefore, by selecting a corresponding method for extracting the gas to be tested based on the volume of the gas detection chamber, it is possible to ensure that the amount of gas extracted each time is consistent and appropriate, thereby guaranteeing the accuracy of each gas test and improving the stability and precision of the gas detection. Furthermore, by activating the first driving device according to the extraction method, the power of the first driving device can be made suitable for the extraction method, thereby improving the extraction efficiency.

[0145] Optionally, the refrigerator activates the first driving device according to the extraction method, including: when the extraction method is full extraction, the refrigerator activates the first driving device according to the volume of the gas detection chamber; when the extraction method is partial extraction, the refrigerator activates the first driving device according to a set volume.

[0146] Thus, when the refrigerator is in full extraction mode, it needs to continuously extract the gas to be tested from the containing cavity until the gas in the gas detection cavity is completely replaced by the gas to be tested. Therefore, the volume of the gas detection cavity needs to be extracted at this point. Based on the volume of the gas detection cavity, the first driving device is activated. When the refrigerator is in partial extraction mode, the first driving device is activated based on a set volume. Activating the first driving device based on the amount of gas to be extracted ensures that the starting power of the first driving device matches the required gas extraction volume, thereby improving the gas extraction efficiency of the first driving device.

[0147] Optionally, the refrigerator starts the first driving device according to the volume of the gas detection chamber, including: the refrigerator determines the initial power corresponding to the volume of the gas detection chamber according to a preset first correspondence; the refrigerator corrects the initial power to obtain the target power according to the pipeline characteristics of the gas pipeline corresponding to the first driving device; and the refrigerator starts the first driving device according to the target power.

[0148] In this way, the refrigerator determines the initial power corresponding to the volume of the gas detection chamber based on a preset first correspondence. This matches the initial power of the first drive device with the volume of the gas detection chamber, improving the gas extraction efficiency. However, in actual use, various factors may affect gas extraction, such as pipe leaks or wear on the first drive device, causing it to fail to reach its theoretical power and thus fail to extract gas into the gas detection chamber in a timely manner. Therefore, based on the characteristics of the gas pipe corresponding to the first drive device, the initial power is corrected to obtain the target power, and finally, the first drive device is activated according to the target power. Correcting the initial power based on pipe characteristics avoids situations where the gas extraction power of the first drive device cannot reach the theoretical power due to pipe damage or other reasons, thus affecting the gas extraction efficiency. This makes the target power more accurate and meets the gas extraction efficiency requirements of the current gas detection.

[0149] Optionally, the refrigerator corrects the initial power to obtain the target power based on the pipeline characteristics of the gas pipeline corresponding to the first driving device, including: the refrigerator determining the limiting power corresponding to the pipeline characteristics based on a preset second correspondence; the refrigerator determining the initial power as the target power when the initial power is less than the limiting power; and the refrigerator determining the limiting power as the target power when the initial power is greater than or equal to the limiting power.

[0150] Thus, the pumping power is generally negatively correlated with the required pumping time; the higher the pumping power, the shorter the required pumping time. However, the pumping power is limited by the size and rigidity of the gas pipeline, and the power cannot be too high to ensure normal gas flow within the pipeline without generating negative pressure. Therefore, a limiting power is determined based on the pipeline characteristics, and the target power is limited to be less than the limiting power to avoid the generation of negative pressure, which would lead to inaccurate gas detection.

[0151] Optionally, the refrigerator starts the first driving device according to the set volume, including: the refrigerator determines the suction power corresponding to the set volume according to a preset third correspondence; the refrigerator starts the first driving device according to the suction power.

[0152] In this way, by determining the power corresponding to the set volume through the preset correspondence, the pumping power of the first drive device can be matched with the set volume, thereby accurately pumping the required amount of gas to be tested into the gas detection chamber.

[0153] This disclosure provides a method for detecting gases in a refrigerator. For example... Figure 3 As shown, the method includes:

[0154] S31, in response to the gas detection command, the refrigerator draws the gas to be tested from the containment chamber into the gas detection chamber.

[0155] S32, the refrigerator starts the first electric heating device to heat the gas to be tested in the gas detection chamber, and then performs gas detection on the heated gas to be tested.

[0156] The method for gas detection in a refrigerator provided in this disclosure involves placing the gas detection chamber outside the refrigerator and drawing gas from inside the refrigerator into the external gas detection chamber for detection. This increases the detection temperature of the gas sensor, thereby improving detection accuracy, while also avoiding impacting the low-temperature environment inside the refrigerator, which could affect the preservation of items. Furthermore, a first electric heating device located in the gas detection chamber heats the gas to be tested, promptly raising its temperature. By adjusting the temperature of the gas to be tested in a timely manner while avoiding impacting the low-temperature environment inside the refrigerator and thus affecting the preservation of items during gas detection, the accuracy of gas detection is improved.

[0157] Optionally, the refrigerator activates the first electric heating device to heat the gas to be tested in the gas detection chamber, including: the refrigerator acquiring the optimal temperature for gas detection by the gas sensor; and the refrigerator activating the first electric heating device to heat the gas to be tested in the gas detection chamber to the optimal temperature.

[0158] Since gas temperature has a significant impact on the response value of the gas sensor, activating the first electric heating device to heat the gas to be tested to the optimal temperature for gas detection can greatly improve the accuracy of gas detection in the refrigerator.

[0159] Optionally, the refrigerator activates the first electric heating device to heat the gas to be tested in the gas detection chamber to the optimal temperature, including: the refrigerator determining the first target power of the first electric heating device based on the optimal temperature; the refrigerator activating the first electric heating device according to the first target power to heat the gas to be tested until the temperature of the gas to be tested reaches the optimal temperature.

[0160] In this way, by determining the first target power through the optimal temperature and activating the first electric heating device, the first electric heating device can more accurately heat the gas to be tested to the optimal temperature, avoiding excessive energy consumption or insufficient heat.

[0161] Optionally, the refrigerator determines the first target power of the first electric heating device based on the optimal temperature, including: the refrigerator acquiring the initial temperature of the gas to be tested entering the gas detection chamber; the refrigerator calculating the temperature difference between the optimal temperature and the initial temperature; and the refrigerator determining the first target power based on the temperature difference.

[0162] Thus, as the gas to be tested travels from the storage chamber through the pipeline to the gas detection chamber, its temperature will rise to a certain extent. If the heating of the first electric heating device is controlled based on the temperature inside the storage chamber, the power of the first electric heating device will be too high due to the relatively low temperature inside the storage chamber, resulting in wasted energy. Therefore, controlling the heating of the first electric heating device based on the difference between the initial temperature of the gas entering the gas detection chamber and the desired optimal temperature can improve the accuracy of the first target power and thus avoid energy waste.

[0163] Optionally, the refrigerator determines the first target power based on the temperature difference, including: the refrigerator determines the power corresponding to the temperature difference based on a preset correspondence between temperature difference and power; the refrigerator sets the power as the first target power; wherein the temperature difference is positively correlated with the first target power.

[0164] In this way, by determining the corresponding first target power based on the temperature difference through the corresponding relationship, the power of the first electric heating device can be adapted to the temperature of the gas to be measured in the gas detection chamber, thereby improving the heating efficiency.

[0165] Optionally, before the refrigerator draws the gas to be tested from the containment chamber into the gas detection chamber, it further includes: the refrigerator activating a second electric heating device to heat the gas to be tested flowing through the extraction pipeline.

[0166] In this way, the gas to be tested can be heated in advance before it reaches the gas detection chamber, thereby shortening the heating time of the gas to be tested in the gas detection chamber, allowing the temperature of the gas to be tested to reach the optimal temperature more quickly, and improving the efficiency of gas detection.

[0167] Optionally, the refrigerator activates the second electric heating device to heat the gas to be tested flowing through the extraction pipe, including: the refrigerator determining the second target power of the second electric heating device based on the temperature of the containment cavity; and the refrigerator activating the second electric heating device according to the second target power to increase the temperature of the gas to be tested flowing through the extraction pipe.

[0168] In this way, by determining the second target power based on the temperature of the containment cavity, the preheating operation of the gas to be tested in the extraction pipeline can be more precise, thereby making the temperature of the gas to be tested flowing into the gas detection cavity closer to the optimal temperature.

[0169] This disclosure provides a method for detecting gases in a refrigerator. For example... Figure 4 As shown, the method includes:

[0170] S41, the refrigerator responds to the gas detection command and determines the target storage compartment that needs to be detected for gas.

[0171] S42, the refrigerator starts the target electric heating device in the air extraction pipeline corresponding to the target storage compartment, and extracts the gas to be tested from the target storage compartment into the gas detection chamber for gas detection.

[0172] The process of the refrigerator drawing the gas to be tested from the target storage compartment into the gas detection chamber for gas detection is the same as the steps used in the above embodiment, and will not be repeated here. The target electric heating device can be the second electric heating device in the refrigerator structure described above. The compensation electric heating device can be the first electric heating device in the refrigerator structure described above.

[0173] The method for gas detection in a refrigerator provided in this disclosure involves placing the gas detection chamber outside the refrigerator and drawing gas from inside the refrigerator into the external gas detection chamber for detection. This improves detection accuracy by increasing the detection temperature of the gas sensor while avoiding impact on the low-temperature environment inside the refrigerator, which could affect the preservation of items. Furthermore, preheating the gas to be tested through a target heating device within the extraction pipe corresponding to the target storage compartment regulates the temperature of the gas flowing into the gas detection chamber, preventing the influence of different storage compartment temperatures and pipe lengths on the gas temperature and thus affecting gas detection. By avoiding impact on the low-temperature environment inside the refrigerator during gas detection, and reducing the influence of different compartment temperatures and corresponding extraction pipe lengths on gas detection, the accuracy of gas detection results is improved.

[0174] Optionally, the refrigerator activates the target electric heating device in the exhaust pipe corresponding to the target storage compartment, including: the refrigerator acquiring the current temperature of the target storage compartment; the refrigerator determining the target power of the target electric heating device based on the current temperature; and the refrigerator activating the target electric heating device according to the target power.

[0175] In this way, as the gas to be tested travels from the target storage chamber through the pipeline to the gas detection chamber, its temperature will rise to a certain extent. If the target electric heating device is controlled to heat the gas to be tested based on the temperature inside the storage chamber, the power of the target electric heating device will be too high due to the relatively low temperature inside the storage chamber, resulting in wasted energy. Therefore, controlling the heating device to heat the gas to be tested based on its current temperature entering the gas detection chamber can improve the accuracy of the target power and thus avoid energy waste.

[0176] Optionally, the refrigerator determines the target power of the target electric heating device based on the current temperature, including: the refrigerator acquiring the optimal temperature detected by the gas sensor; the refrigerator calculating a first temperature difference between the optimal temperature and the current temperature; and the refrigerator determining the target power based on the first temperature difference.

[0177] In this way, by determining the target power based on the difference between the current temperature of the gas to be measured entering the gas detection chamber and the optimal temperature to be reached, the target power can be adapted to the current temperature of the gas to be measured in the gas detection chamber, thereby improving the accuracy of the gas detection results.

[0178] Optionally, the refrigerator determines the target power based on the first temperature difference, including: the refrigerator determines the power corresponding to the first temperature difference based on a preset correspondence between temperature difference and power; the refrigerator determines the power as the target power; wherein the first temperature difference is positively correlated with the target power.

[0179] In this way, by determining the corresponding target power based on the first temperature difference through the corresponding relationship, the power of the target electric heating device can be adapted to the temperature of the gas to be measured in the gas detection chamber, thereby improving the heating efficiency.

[0180] Optionally, before the refrigerator detects the gas to be tested, the refrigerator further includes: acquiring the initial temperature of the gas to be tested entering the gas detection chamber; calculating a second temperature difference between the optimal temperature for gas detection by the gas sensor and the initial temperature; and, if the second temperature difference is greater than a temperature difference threshold, activating a compensation electric heating device based on the second temperature difference.

[0181] In this way, by using a compensating electric heating device to compensate for the temperature of the gas to be tested, the temperature of the gas to be tested can be quickly brought to the optimal temperature, thus avoiding a large deviation between the temperature of the gas to be tested and the optimal temperature, which would lead to inaccurate gas detection results.

[0182] Optionally, the refrigerator activates the compensation electric heating device based on the second temperature difference, including: the refrigerator determining the compensation power based on the second temperature difference; and the refrigerator activating the compensation electric heating device according to the compensation power to bring the temperature of the gas to be measured to the optimal temperature.

[0183] In this way, by determining the compensation power based on the second temperature difference, the power of the compensation electric heating device can be adjusted more precisely, thereby reducing energy consumption and improving the efficiency of the gas being measured to reach the optimal temperature.

[0184] This disclosure provides a method for detecting gases in a refrigerator. For example... Figure 5 As shown, the method includes:

[0185] S51, in response to a gas detection command, the refrigerator determines the target storage compartment that needs to be tested for gas.

[0186] S52, the refrigerator starts the first drive device according to the volume of the gas detection chamber and the pipeline characteristics of the gas extraction pipeline corresponding to the target storage compartment, and extracts the gas to be tested from the target storage compartment into the gas detection chamber for gas detection.

[0187] The process of the refrigerator drawing the gas to be tested from the target storage compartment into the gas detection chamber for gas detection is the same as the steps used in the above embodiment, and will not be repeated here. After the refrigerator draws the gas to be tested from the target storage compartment into the gas detection chamber for gas detection, the process may further include: after the gas detection is completed, the refrigerator draws in external air to replace the gas already tested in the gas detection chamber.

[0188] The method for gas detection in a refrigerator provided in this disclosure involves placing the gas detection chamber outside the refrigerator and drawing gas from inside the refrigerator into the external gas detection chamber for detection. This increases the detection temperature of the gas sensor, thereby improving detection accuracy, while also avoiding impact on the low-temperature environment inside the refrigerator, which could affect the preservation of items. Furthermore, by activating the first driving device to draw the gas to be tested based on the volume of the target storage compartment and the characteristics of the corresponding extraction pipeline, the influence of the target storage compartment's volume and pipeline characteristics on the amount of gas drawn can be reduced. By avoiding impact on the low-temperature environment inside the refrigerator during gas detection, thus minimizing the influence of the location of the storage compartment on the amount of gas drawn, the accuracy of gas detection results is improved.

[0189] Optionally, the refrigerator starts the first driving device based on the volume of the gas detection chamber and the characteristics of the suction pipe corresponding to the target storage compartment, including: the refrigerator determining the initial operating parameters of the first driving device based on the volume of the gas detection chamber; the refrigerator correcting the initial operating parameters based on the pipe characteristics and the distance between the target storage compartment and the gas detection chamber to obtain the target operating parameters; and the refrigerator starting the first driving device according to the target operating parameters; wherein the initial operating parameters include suction power and suction duration.

[0190] In this way, the refrigerator determines the initial operating parameters of the first drive device based on the volume of the gas detection chamber. Since different gas detection chamber volumes require different amounts of gas to be measured, determining the initial operating parameters of the first drive device based on volume ensures that the amount of gas to be measured is compatible with the volume of the gas detection chamber, thereby improving the accuracy of the gas detection results. Furthermore, because different storage compartments have different locations, the length and usage of the corresponding extraction pipes will also vary. Therefore, by correcting the initial operating parameters based on pipe characteristics and the distance between the target storage compartment and the gas detection chamber, the length and usage of the extraction pipes are comprehensively considered. This makes the operating parameters of the first drive device more precise at startup, ensuring a consistent amount of gas flowing into the gas detection chamber and improving the accuracy of the gas detection results.

[0191] Optionally, the refrigerator determines the initial operating parameters of the first driving device based on the volume of the gas detection chamber, including: the refrigerator determining the extraction method of the gas to be tested in the chamber based on the volume of the gas detection chamber; and the refrigerator determining the initial operating parameters based on the extraction method.

[0192] The refrigerator determines the extraction method of the gas to be tested in the gas detection chamber based on the volume of the chamber, which is the same as the steps for determining the extraction method mentioned above, and will not be repeated here.

[0193] In this way, determining the extraction method based on the volume of the gas detection chamber ensures that the amount of gas to be measured extracted remains consistent each time. Furthermore, determining the corresponding initial operating parameters for different extraction methods allows the initial operating parameters of the first drive device to be adapted to the extraction method, thereby improving the extraction efficiency of the gas to be measured.

[0194] Optionally, the refrigerator determines the initial operating parameters according to the extraction method, including: when the extraction method is full extraction, the refrigerator determines the initial operating parameters based on the volume of the gas detection chamber; when the extraction method is partial extraction, the refrigerator determines the initial operating parameters based on the set volume.

[0195] In this way, by determining the corresponding initial operating parameters for different extraction methods, the initial operating parameters of the first driving device can be adapted to the extraction method, thereby improving the extraction efficiency of the gas to be measured.

[0196] Optionally, the refrigerator corrects the initial operating parameters based on the pipeline characteristics and the distance between the target storage compartment and the gas detection chamber to obtain the target operating parameters, including: the refrigerator corrects the evacuation time based on the pipeline length to obtain the target evacuation time; the refrigerator corrects the evacuation power based on the distance to obtain the target evacuation power; and the refrigerator determines the target evacuation time and the target evacuation power as the target operating parameters.

[0197] In this way, since the locations of different storage rooms are different, the length and usage of the corresponding air extraction pipeline will also be different. By correcting the initial operating parameters through pipeline characteristics and the distance between the target storage room and the gas detection chamber, the length and usage of the air extraction pipeline are comprehensively considered, so that the operating parameters of the first drive device at startup are more accurate, thereby ensuring that the amount of gas flowing into the gas detection chamber remains consistent and improving the accuracy of the gas detection results.

[0198] Combination Figure 16As shown, this disclosure provides an apparatus for detecting gases in a refrigerator, including a processor 1000 and a memory 1001. Optionally, the apparatus may further include a communication interface 1002 and a bus 1003. The processor 1000, communication interface 1002, and memory 1001 can communicate with each other via the bus 1003. The communication interface 1002 can be used for information transmission. The processor 1000 can call logical instructions stored in the memory 1001 to execute the refrigerator gas detection method described in the above embodiment.

[0199] Furthermore, the logic instructions in the aforementioned memory 1001 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium.

[0200] The memory 1001, as a computer-readable storage medium, can be used to store software programs and computer-executable programs, such as program instructions / modules corresponding to the methods in the embodiments of this disclosure. The processor 1000 executes functional applications and data processing by running the program instructions / modules stored in the memory 1001, that is, it implements the method for refrigerator gas detection in the above embodiments.

[0201] The memory 1001 may include a program storage area and a data storage area. The program storage area may store the operating system and applications required for at least one function; the data storage area may store data created based on the use of the terminal device. Furthermore, the memory 1001 may include high-speed random access memory and may also include non-volatile memory.

[0202] This disclosure provides a refrigerator including a receiving cavity and an external gas detection cavity; and the aforementioned device for detecting gas in the refrigerator.

[0203] This disclosure provides a storage medium storing computer-executable instructions configured to perform the above-described method for detecting gas in a refrigerator.

[0204] The aforementioned storage medium can be either transient or non-transient.

[0205] The technical solutions of this disclosure can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes one or more instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in this disclosure. The aforementioned storage medium can be a non-transitory storage medium, including: a USB flash drive, a portable hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and other media capable of storing program code; it can also be a transient storage medium.

[0206] The foregoing description and accompanying drawings fully illustrate embodiments of this disclosure to enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, procedural, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the terminology used in this application is for describing embodiments only and is not intended to limit the claims. As used in the description of embodiments and claims, the singular forms “a,” “an,” and “the” are intended to equally include the plural forms unless the context clearly indicates otherwise. Similarly, the term “and / or” as used in this application means including one or more of the associated listed items and all possible combinations thereof. Additionally, when used in this application, the term "comprise" and its variations "comprises" and / or "comprising" refer to the presence of stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. Without further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the process, method, or apparatus that includes said element. In this document, each embodiment may focus on the differences from other embodiments, and similar or identical parts between embodiments can be referred to mutually. For methods, products, etc., disclosed in the embodiments, if they correspond to the method section disclosed in the embodiments, the relevant parts can be referred to the description of the method section.

[0207] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the embodiments of this disclosure. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0208] The methods and products (including but not limited to devices and equipment) disclosed in the embodiments herein can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For instance, the division of units may be merely a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the shown or discussed units may be through some interfaces, and the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the units may be selected to implement this embodiment according to actual needs. Furthermore, the functional units in the embodiments of this disclosure may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0209] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to embodiments of this disclosure. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions marked in the blocks may occur in a different order than that shown in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the accompanying drawings, the operations or steps corresponding to different blocks may also occur in a different order than disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. Each block in a block diagram and / or flowchart, and combinations of blocks in a block diagram and / or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

Claims

1. A method for detecting gases in a refrigerator, characterized in that, The refrigerator includes a receiving cavity and an external gas detection cavity. The receiving cavity includes several storage compartments connected to the gas detection cavity via corresponding extraction pipes. Each extraction pipe is equipped with an electric heating device for heating the gas within the pipe. The gas detection cavity is equipped with a gas sensor for gas detection and a compensating electric heating device for heating the gas within the cavity. The method includes: In response to a gas detection command, the target storage room that needs to be tested for gas is identified; Activate the target electric heating device in the extraction pipeline corresponding to the target storage room, and extract the gas to be tested from the target storage room into the gas detection chamber for gas detection; The activation of the target electric heating device in the exhaust pipe corresponding to the target storage room includes: Obtain the current temperature of the target storage room; obtain the optimal temperature for gas detection by the gas sensor; Calculate the first temperature difference between the optimal temperature and the current temperature; Based on the first temperature difference, determine the target power of the target electric heating device; start the target electric heating device according to the target power; Before gas detection, the process includes: obtaining the initial temperature of the gas to be tested entering the gas detection chamber; calculating a second temperature difference between the optimal temperature for gas detection by the gas sensor and the initial temperature; determining a compensation power based on the second temperature difference if the second temperature difference is greater than a temperature difference threshold; and activating the compensation electric heating device according to the compensation power to bring the temperature of the gas to be tested to the optimal temperature.

2. The method according to claim 1, characterized in that, Determining the target power based on the first temperature difference includes: Based on the preset correspondence between temperature difference and power, determine the power corresponding to the first temperature difference value; The power is determined as the target power; The first temperature difference is positively correlated with the target power.

3. The method according to claim 1 or 2, characterized in that, The step of extracting the gas to be tested from the target storage room into the gas detection chamber for gas detection includes: Obtain the volume of the gas detection chamber; The gas to be tested is drawn from the target storage room into the gas detection chamber in a manner corresponding to the volume of the gas detection chamber. The gas to be tested is detected.

4. The method according to claim 3, characterized in that, The step of extracting the gas to be tested from the target storage room into the gas detection chamber in a manner corresponding to the volume of the gas detection chamber includes: When the volume of the gas detection chamber is less than the volume threshold, the gas to be tested is continuously extracted from the chamber until all the gas in the gas detection chamber is replaced by the gas to be tested. If the volume of the gas detection chamber is greater than or equal to the volume threshold, a set volume of the gas to be tested is drawn into the gas detection chamber.

5. The method according to claim 1, characterized in that, Also includes: After the gas detection is completed, external air is drawn out to replace the gas in the gas detection chamber.

6. A device for detecting gas in a refrigerator, comprising a processor and a memory storing program instructions, characterized in that, The processor is configured to perform, when executing the program instructions, the method for detecting gas in a refrigerator as described in any one of claims 1 to 5.

7. A refrigerator, characterized in that, The device includes a receiving cavity and an external gas detection cavity. The receiving cavity includes several storage compartments connected to the gas detection cavity via corresponding exhaust pipes. The gas detection cavity is equipped with a gas sensor for gas detection and a compensating electric heating device for heating the gas inside the cavity. Each exhaust pipe is equipped with an electric heating device for heating the gas inside the pipe. The device also includes a gas detection device for a refrigerator as described in claim 6.

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

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