Detection device for a refrigerator and refrigerator

Abstract

This application relates to the field of refrigeration equipment technology, and discloses a detection device for a refrigerator and a refrigerator. The refrigerator includes a cabinet that defines a receiving cavity. The detection device for the refrigerator includes: a detection cavity, adapted to be located outside the cabinet; a first pipe adapted to connect the receiving cavity and the detection cavity; the first pipe allows gas in the receiving cavity to enter the detection cavity through the first pipe; and a detection device located inside the detection cavity for detecting the gas in the detection cavity. By placing the detection cavity outside the cabinet and allowing gas in the receiving cavity to enter the detection cavity through the first pipe before detection, the detection device can avoid being affected by the complex internal environment of the refrigerator, which could lead to insufficient detection sensitivity and accuracy. This improves the sensitivity and stability of the detection device and extends its lifespan.

Description

Technical Field

[0001] This application relates to the field of refrigeration equipment technology, for example to a detection device for a refrigerator and a refrigerator. 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, foods stored for extended periods without being noticed will slowly spoil or even rot, releasing unpleasant odors in the process. Because a refrigerator is a closed space, these odors cannot escape, resulting in unpleasant smells inside. To improve the user experience, it is essential to install odor sensors inside the refrigerator to detect odors and provide feedback to the user. Currently, most refrigerator gas sensors are placed directly on the inner wall or in the air duct.

[0003] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art:

[0004] When the sensor (corresponding to the detection device of this application) is placed on the inner wall or in the air duct of the refrigerator, the sensor has very low accuracy in monitoring characteristic gases such as refrigerator odors, food ripeness, and food spoilage. This is because the sensor's sensitivity is limited at low temperatures, resulting in low detection accuracy. Summary of the Invention

[0005] 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.

[0006] This disclosure provides a detection device and a refrigerator for use in refrigerators, thereby improving the detection sensitivity and accuracy of sensors.

[0007] This disclosure provides a detection device for a refrigerator, the refrigerator including a cabinet defining a receiving cavity, the detection device for the refrigerator including: a detection cavity adapted to be located outside the cabinet; a first pipeline adapted to connect the receiving cavity and the detection cavity; the first pipeline adapted to connect the receiving cavity and the detection cavity, wherein gas in the receiving cavity can enter the detection cavity through the first pipeline; and a detection device located in the detection cavity for detecting the gas in the detection cavity.

[0008] Optionally, the detection device for the refrigerator further includes: a first driving device connected to the first pipeline, used to drive the gas in the receiving cavity to flow into the detection cavity through the first pipeline.

[0009] Optionally, the detection device for the refrigerator further comprises a second pipeline in communication with the detection cavity and the outside, the second pipeline being used to introduce outside air into the detection cavity; and / or a third pipeline in communication with the detection cavity and the outside, the third pipeline being used to discharge the gas flow in the detection cavity to the outside.

[0010] Optionally, when the detection device for the refrigerator comprises the second pipeline, the detection device for the refrigerator further comprises a second driving device in communication with the second pipeline and capable of driving outside air to flow into the detection cavity through the second pipeline.

[0011] Optionally, when the detection device for the refrigerator comprises the third pipeline, the detection device for the refrigerator further comprises a third driving device in communication with the third pipeline and capable of driving the gas in the detection cavity to flow to the outside; and / or a damper controllably arranged in the third pipeline and used to open or close the third pipeline.

[0012] Optionally, the detection device for the refrigerator further comprises a purification device in communication with the outlet end of the third pipeline, so that the gas flowing out of the third pipeline is purified by the purification device before flowing to the outside.

[0013] Optionally, when the number of the accommodation cavities is plural, the number of the first pipelines is the same as and corresponds to the number of the accommodation cavities, and the plural first pipelines are all adapted to communicate one detection cavity and plural accommodation cavities.

[0014] Optionally, the first pipeline is at least partially curved to increase the length of the first pipeline.

[0015] Optionally, the detection cavity is adapted to be arranged at the top of the cabinet; and / or the detection cavity is adapted to be arranged at the side of the cabinet; and / or the detection cavity is adapted to be located in the compressor cabin of the refrigerator to increase the temperature of the gas in the detection cavity.

[0016] The embodiments of the present disclosure further provide a refrigerator comprising the detection device for the refrigerator according to any one of the above embodiments.

[0017] The detection device for the refrigerator and the refrigerator provided by the embodiments of the present disclosure can achieve the following technical effects:

[0018] The detection cavity is arranged outside the cabinet, and the gas in the accommodation cavity flows into the detection cavity through the first pipeline and is then detected, so that the detection device can be prevented from being affected by the complex environment inside the refrigerator, and the sensitivity and accuracy of the detection device can be improved. Furthermore, the sensitivity and stability of the detection device can be improved, and the service life of the detection device can be prolonged.

[0019] The foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application. BRIEF DESCRIPTION OF DRAWINGS

[0020] One or more embodiments are illustrated by way of example in the figures that are not intended to be limiting of the application as defined by the claims and their equivalents. Identical reference numbers in the figures designate equivalent elements. The figures are not necessarily to scale, and the size of the elements shown in the figures is intended to illustrate but not limit the application. Where practical, similar or like elements are identified with like reference designators in the figures.

[0021] Figure 1 is a structural schematic diagram of a refrigerator provided by an embodiment of the present disclosure;

[0022] Figure 2 is a structural schematic diagram of another refrigerator provided by an embodiment of the present disclosure;

[0023] Figure 3 is a structural schematic diagram of another refrigerator provided by an embodiment of the present disclosure;

[0024] Figure 4 is a structural schematic diagram of a detection device for a refrigerator provided by an embodiment of the present disclosure;

[0025] Figure 5 is a structural schematic diagram of another refrigerator provided by an embodiment of the present disclosure;

[0026] Figure 6 is a structural schematic diagram of another refrigerator provided by an embodiment of the present disclosure;

[0027] Figure 7 is a structural schematic diagram of another refrigerator provided by an embodiment of the present disclosure;

[0028] Figure 8 is a partial structural schematic diagram of a first pipeline provided by an embodiment of the present disclosure;

[0029] Figure 9 is a partial structural schematic diagram of another first pipeline provided by an embodiment of the present disclosure;

[0030] Figure 10 is a partial structural schematic diagram of another first pipeline provided by an embodiment of the present disclosure;

[0031] Figure 11 is a schematic diagram of a method for refrigerator gas detection provided by an embodiment of the present disclosure;

[0032] Figure 12 is a schematic diagram of another method for refrigerator gas detection provided by an embodiment of the present disclosure;

[0033] Figure 13 is a schematic diagram of another method for refrigerator gas detection provided by an embodiment of the present disclosure;

[0034] Figure 14 is another schematic diagram of a method for detecting gas of a refrigerator provided by an embodiment of the present disclosure;

[0035] Figure 15 is another schematic diagram of a method for detecting gas of a refrigerator provided by an embodiment of the present disclosure;

[0036] Figure 16 is a schematic diagram of a detection device for a refrigerator provided by an embodiment of the present disclosure.

[0037] Reference Signs:

[0038] 10, cabinet; 101, containing cavity; 102, freezing chamber; 103, compressor cabin; 104, compressor; 20, detection cavity; 201, first pipeline; 202, second pipeline; 203, third pipeline; 204, first driving device; 205, second driving device; 206, third driving device; 30, adsorption device; 301, adsorption column; 302, adsorption coating; 303, separation membrane; 40, colorimetric gas sensor; 50, detection equipment. DETAILED DESCRIPTION

[0039] In order to enable a more detailed understanding of the features and technical content of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure will be described in detail below, and the attached drawings are used for reference only and do not limit the embodiments of the present disclosure. In the following technical description, in order to facilitate explanation, through multiple details, a sufficient understanding of the disclosed embodiments is provided. However, one or more embodiments can still be implemented without these details. In other cases, in order to simplify the drawings, well-known structures and devices can be simplified.

[0040] The terms "first", "second", and the like in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily have to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0041] In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "back" and the like indicate the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to indicating the orientation or positional relationship, the above-mentioned terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0042] In addition, the terms "set", "connected", "fixed" should be broadly understood. For example, "connected" can be fixedly connected, detachably connected, or integrally configured; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0043] Unless otherwise specified, the term "a plurality of" means two or more.

[0044] The term "and / or" is a description of the association relationship of the object, which means that there can be three relationships. For example, A and / or B means: A or B, or, A and B, three relationships.

[0045] It should be noted that the embodiments in the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0046] In combination Figures 1 to 10 As shown in the drawings, the present disclosure provides a refrigerator, which includes a cabinet 10, the cabinet 10 defines a containing cavity 101, the containing cavity 101 is used to place food or other articles. The refrigerator includes a refrigeration assembly, the refrigeration assembly includes an evaporator, a condenser, a compressor 104 and a throttling device in communication. The evaporator exchanges heat with the containing cavity 101, which can reduce the temperature of the containing cavity 101.

[0047] Optionally, the outer side of the cabinet 10 defines a compressor cabin 103, and the compressor 104 is located in the compressor cabin 103.

[0048] As Figures 1 to 7As shown, the embodiment of the present disclosure further provides a detection device for a refrigerator. The detection device for a refrigerator comprises a detection cavity 20, a first pipeline 201 and a detection device 50. The detection cavity 20 is adapted to be located outside the cabinet 10. The first pipeline 201 is adapted to communicate the containing cavity 101 and the detection cavity 20. The gas in the containing cavity 101 can flow into the detection cavity 20 through the first pipeline 201. The detection device 50 is located in the detection cavity 20 and is used for detecting the gas in the detection cavity 20.

[0049] In this embodiment, the detection cavity 20 is communicated with the containing cavity 101 through the first pipeline 201. The gas in the containing cavity 101 can flow into the detection cavity 20 through the first pipeline 201. In this way, the detection device 50 (corresponding to the sensor) can reduce the influence of the complex environment, for example, the detection device 50 will not be affected by the complex environment inside the refrigerator, the fluctuation of temperature and humidity, thereby improving the sensitivity, accuracy and stability of the detection device 50, and further prolonging the service life of the detection device 50.

[0050] Optionally, the shape of the detection cavity 20 can be rectangular, circular, polygonal, etc., which is not limited in the present application. Optionally, the detection cavity 20 is flat, which can not affect the overall appearance of the refrigerator and is convenient for maintenance.

[0051] Optionally, the detection device for a refrigerator further comprises a first driving device 204. The first driving device 204 is communicated with the first pipeline 201. The first driving device 204 is used for driving the gas in the containing cavity 101 to flow into the detection cavity 20 through the first pipeline 201. The first driving device 204 can drive the gas in the containing cavity 101 to flow into the detection cavity 20. In this way, the gas in the containing cavity 101 can be extracted into the detection cavity 20 for detection.

[0052] It should be noted that the detection device for a refrigerator can also not be provided with the first driving device 204, that is, the gas in the containing cavity 101 can flow into the detection cavity 20 by itself. For example, when the pipeline length of the first pipeline 201 is small or the pressure difference is large, the gas in the containing cavity 101 can enter the detection cavity 20 through the first pipeline 201 by itself. Optionally, the first pipeline 201 can be provided with a control switch to control the communication or closing of the first pipeline 201.

[0053] Optionally, as shown, Figure 4 The first driving device 204 is located in the first pipeline 201. When the first driving device 204 works, it can drive the gas in the containing cavity 101 to flow into the detection cavity 20. When the first driving device 204 does not work, the first pipeline 201 is not communicated, and the gas in the detection cavity 20 cannot flow into the detection cavity 20 through the first pipeline 201. Optionally, the first driving device 204 is arranged at the outlet of the first pipeline 201.

[0054] Optionally, the first drive unit 204 can be a fan or an air pump.

[0055] Optionally, the detection device for the refrigerator further includes a second pipe 202 and / or a third pipe 203. The second pipe 202 connects the detection chamber 20 to the outside and is used to introduce outside air into the detection chamber 20. The third pipe 203 connects the detection chamber 20 to the outside and is used to discharge the airflow in the detection chamber 20 to the outside.

[0056] In this embodiment, the third pipe 203 is used to discharge the gas from the detection chamber 20 after detection. The second pipe 202 is used to introduce fresh outside air into the detection chamber 20. This can be understood as follows: after the gas in the detection chamber 20 is detected, fresh outside air replaces the complex gas inside the 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.

[0057] Optionally, the detection device for the 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 detection chamber 20 through the second pipe 202.

[0058] In this embodiment, the second driving device 205 can provide driving force so that the external airflow flows into the detection chamber 20 through the second pipe 202.

[0059] Optionally, such as Figure 4 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 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 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.

[0060] It should be noted that the detection device for the refrigerator may not include the second drive device 205, meaning that external gas can flow into the detection chamber 20 on its own. For example, when the length of the second pipe 202 is short or the pressure difference is large, the gas in the receiving chamber 101 can enter the detection chamber 20 on its own through the second pipe 202. Optionally, a control switch can be provided for the second pipe 202 to control its connection or disconnection.

[0061] Optionally, the detection device for the refrigerator further comprises a third driving device 206, which is connected to the third pipeline 203 and is capable of driving the gas in the detection chamber 20 to flow out to the outside. In the embodiment, the third driving device 206 is capable of providing driving force to drive the gas in the detection chamber 20 to flow out to the outside.

[0062] Optionally, the third driving device 206 is located in the third pipeline 203, and when the third driving device 206 is working, it is capable of driving the gas in the detection chamber 20 to flow out to the outside, and when the third driving device 206 is not working, the third pipeline 203 is not connected, and the gas in the detection chamber 20 cannot be discharged through the third pipeline 203. Optionally, the third driving device 206 is arranged at the inlet of the third pipeline 203.

[0063] Optionally, the third driving device 206 can be a fan or a suction pump.

[0064] Optionally, the detection device for the refrigerator further comprises a damper, which is controllably arranged in the third pipeline 203 and is used to open or close the third pipeline 203.

[0065] In the embodiment, the third pipeline 203 can not be provided with the third driving device 206, and the third pipeline 203 is provided with a damper, which is opened to discharge the gas in the detection chamber 20 when the gas needs to be discharged to the outside. During detection, the damper is closed to ensure that there is no gas exchange during detection. The damper has smaller noise and lower power consumption.

[0066] In a specific embodiment, the first driving device 204 comprises a suction pump, and / or the second driving device 205 is a fan. In the embodiment, the first driving device 204 needs to extract the gas in the containing chamber 101, the position of the containing chamber 101 is different, and the distance between the detection chamber 20 and the containing chamber 101 is also different. Some pipelines are longer. In order to ensure that the gas in the containing chamber 101 at different positions can be sucked into the detection chamber 20, the first driving device 204 comprises a suction pump, which has larger suction force and can improve the suction efficiency. The second pipeline 202 is shorter, so the second driving device 205 for replacing the gas in the detection chamber 20 is a fan, which can meet the demand and reduce energy consumption.

[0067] As shown in FIG. 1, Figures 1 to 3 Optionally, the detection chamber 20 is suitable to be arranged at the top of the cabinet 10; and / or the detection chamber 20 is suitable to be arranged at the side of the cabinet 10; and / or the detection chamber 20 is suitable to be arranged in the compressor chamber 103 of the refrigerator, so as to improve the temperature of the gas in the detection chamber 20.

[0068] In the embodiment, the detection cavity 20 is located at the top of the cabinet 10, which does not affect the overall appearance of the refrigerator and is convenient for maintenance. The air path from the refrigeration chamber (a containing cavity 101 with refrigeration function) of the refrigerator to the detection cavity 20 is short, which saves cost. Moreover, the detection cavity 20 is close to the main control board, and wiring is convenient. The detection cavity 20 can be arranged on the side surface of the cabinet 10, such as the surface of the cabinet 10 or the door body, which is convenient for maintenance and intuitive and visual. Alternatively, the detection cavity 20 is arranged in the middle of the cabinet 10, which is close to the positions of the plurality of containing cavities 101, facilitates the arrangement of the plurality of first pipes 201 in the refrigerator, and facilitates the detection of the gas environment in different containing cavities 101 by the same sensor. Alternatively, the detection cavity 20 is placed in the compressor cabin 103, which does not affect the appearance of the refrigerator, and the temperature near the compressor 104 is higher, which can further activate the gas molecules, make the sensing reaction more sufficient, and improve the sensitivity.

[0069] Alternatively, the detection cavity can also be located outside the compressor cabin 103 and arranged close to the compressor cabin 103, which can also increase the temperature in the detection cavity 20.

[0070] Alternatively, the refrigerator further comprises a shell which is arranged outside the first pipe 201, which can avoid the exposure of the first pipe 201 outside the refrigerator and affect the appearance of the refrigerator.

[0071] Alternatively, the first pipe 201 is at least partially curved to increase the length of the first pipe 201.

[0072] In the embodiment, the length of the first pipe 201 is increased, which can increase the time for the gas to flow at room temperature and improve the temperature of the gas flowing into the detection cavity 20. In this way, the temperature difference between the to-be-detected gas flowing into the detection cavity 20 and the original gas in the detection cavity 20 is small or consistent, which reduces the influence of temperature fluctuation on the sensor and further improves the detection sensitivity of the sensor.

[0073] Alternatively, the first pipe 201 can be S-shaped, spiral-shaped or "mosquito coil-shaped", and the ways to increase the flow length of the gas in the first pipe 201 all belong to the optional embodiments of the application.

[0074] Alternatively, as shown in Figure 5 when the number of containing cavities 101 is multiple, the number of first pipes 201 is the same as and corresponds to the number of containing cavities 101, and the plurality of first pipes 201 are all adapted to communicate one detection cavity 20 and the plurality of containing cavities 101.

[0075] In the embodiment, when the cabinet 10 defines a plurality of containing cavities 101, different containing cavities 101 can place different kinds or different temperature requirements of articles. Each containing cavity 101 is communicated with the detection cavity 20 through a first pipe 201, so that the detection cavity 20 can detect the gas of each containing cavity 101.

[0076] Optionally, each first pipe 201 is provided with a switch, and each switch is used to control the opening and closing of its corresponding first pipe 201.

[0077] In this embodiment, the opening and closing of each first pipeline 201 is controllable, which enables the selective extraction and detection of gas from different containment cavities 101 by a sensor, thereby indicating the odor and / or freshness or rot of the food in different containment cavities 101.

[0078] It should be noted that the number of first pipes 201 may also differ from the number of receiving cavities 101. It may be more or less than the number of receiving cavities 101, and the user can set it according to their needs.

[0079] Optionally, the detection device for the refrigerator 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.

[0080] In this embodiment, the purification device can purify the gas discharged from the detection chamber 20 to ensure the cleanliness of the discharged gas.

[0081] 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.

[0082] 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 the gas detection in the 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.

[0083] In some alternative embodiments, the gas drawn from the receiving cavity 101 to the 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 8 to 10 As shown, the detection device for the refrigerator also includes an adsorption device 30, which is located in the first pipeline 201 and / or the detection chamber 20. The adsorption device 30 is used to adsorb non-target gases in the gas to be detected.

[0084] In this embodiment, when the detection device 50 in the 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 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.

[0085] It should be noted that the adsorption device 30 provided in the first pipeline 201 of this embodiment can be applied not only to the scheme where the detection cavity 20 is external, but also to the exhaust pipeline in the scheme where the detection cavity 20 is located on the inner wall or in the air duct in the related art.

[0086] In some alternative embodiments, such as Figure 8 As shown, the adsorption device 30 includes an adsorption column 301, which comprises multiple adsorption particles. The multiple adsorption particles fill the first pipe 201 to form the adsorption column 301. In this embodiment, the adsorption column 301 can adsorb non-target gases, and the adsorption column 301 is easy to process and easy to fix in the first pipe 201.

[0087] 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.

[0088] 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.

[0089] 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.

[0090] 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 first pipeline 201. Optionally, the adsorption column 301 can be a single segment or multiple segments. For example, the length of the adsorption column 301 can be 0.5m, 0.6m, 0.8m, 1m, etc.

[0091] In other alternative embodiments, such as Figure 9 As shown, the adsorption device 30 includes an adsorption coating 302, which is disposed on the inner wall of the first pipeline 201. In this embodiment, the adsorption liquid is coated on the wall of the first pipeline 201 to form the adsorption coating 302. The adsorption coating 302 can also adsorb non-target gases within the first pipeline 201. Since the adsorption coating 302 is directly applied to the wall of the first 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.

[0092] Specifically, the adsorption coating liquid may include one or more of polydimethylsiloxane, polyethylene glycol, phenyl-containing polydimethylsiloxane, cyano-containing polymethylsiloxane, and trifluoropropyl-containing polymethylsiloxane.

[0093] 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 first pipe 201, thereby affecting the smoothness of gas flow within the first 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.

[0094] Optionally, the length of the adsorption coating 302 is (0m, 20m). Optionally, the adsorption coating 302 is disposed along the circumference of the first pipe 201 on the inner wall of the first pipe 201. Optionally, the adsorption coating 302 can be a single section or multiple sections. Optionally, the adsorption coating 302 can be disposed within a portion of the first pipe 201 or within the entire first pipe 201. The length of the adsorption coating 302 can be 1m, 10m, 15m, or 20m.

[0095] In some alternative embodiments, such as Figure 10 As shown, the adsorption device 30 includes a separation membrane 303 disposed within the first pipeline 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 first pipeline 201. The separation membrane 303 is easy to install and replace, thus improving the selectivity and accuracy of the sensor detection.

[0096] 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.

[0097] 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.

[0098] Optionally, the separation membrane 303 can be located at the inlet end, outlet end, and / or intermediate section of the first pipeline 201. This further increases the filtration efficiency of the separation membrane 303.

[0099] Optionally, the separation membrane 303 is matched with the first pipeline 201, specifically the shape and outer diameter of the separation membrane 303 are consistent with the shape and inner diameter of the first pipeline 201.

[0100] 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.

[0101] Optionally, such as Figure 7 As shown, the detection device for the refrigerator also includes a colorimetric gas sensor 40, which is connected to the detection chamber 20 and can adjust the color according to the gas information in the detection chamber 20.

[0102] 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.

[0103] Optionally, the receiving cavity 101 includes a freezer chamber 102, and a portion of the first pipe 201 is located within the freezer chamber 102.

[0104] In this embodiment, the first pipe 201 is partially located within the freezer chamber 102, meaning that the gas in the first pipe 201 can flow into the detection chamber 20 through the freezer chamber 102. This refrigeration dehumidification removes humidity from the gas being detected, ensuring that the humidity in the 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 using 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.

[0105] Optionally, the detection device for the refrigerator further includes a first heating device disposed inside the detection chamber 20, which is used to heat the gas inside the detection chamber 20.

[0106] Because the gas is cooled and dehumidified by 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 detection chamber 20 and the original gas in the detection chamber 20, which affects the detection sensitivity and accuracy of the detection device 50. Therefore, a first heating device is installed in the 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 detection chamber 20, and thus improving the detection sensitivity of the detection device 50.

[0107] Optionally, the detection device for the refrigerator further includes a second heating device located inside the first pipe 201, which can heat the gas flowing into the detection chamber 20 from the first pipe 201.

[0108] Optionally, when there are multiple first pipes 201, each of the multiple first pipes 201 partially passes through the freezer chamber 102, so that the gas in each first pipe 201 can be dehumidified by freezing.

[0109] Optionally, the heating device includes a heating wire or a heating block.

[0110] It should be noted that the first pipeline 201 of this application is located in the freezer 102, and a heating device is provided in the detection chamber 20. This can be applied not only to the scheme where the detection chamber 20 is external, but also to the scheme where the detection chamber 20 is located on the inner wall or in the air duct in related technologies.

[0111] Optionally, the detection device for the refrigerator also includes a temperature measuring device and a controller. The temperature measuring device is located inside the detection chamber 20 and is used to detect the temperature inside the 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 detection chamber 20.

[0112] In this embodiment, the temperature measuring device is used to detect the temperature inside the detection chamber 20, ensuring that the gas temperature inside the detection chamber 20 reaches the target temperature. After the heating device heats the gas inside the 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.

[0113] Optionally, the temperature measuring device and the heating device are used in combination to ensure that the temperature of the gas detected in the detection chamber 20 is the same each time.

[0114] 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.

[0115] 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.

[0116] Optionally, the testing device for the refrigerator 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 testing chamber to prevent moisture from affecting the testing of the testing equipment 50.

[0117] Optionally, the outlet end of the second pipe 202 adopts a pointed design to avoid the influence of condensate.

[0118] Optionally, the testing device for the refrigerator also includes a shockproof cover, which is located on the outside of the testing device 50 and can reduce the impact of the compressor 104 vibration on the testing device 50.

[0119] Optionally, the shockproof outer cover may include foam pads, silicone pads, etc.

[0120] 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.

[0121] In one specific embodiment, the detection device for the refrigerator 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 detection chamber 20, and the detection equipment 50 continuously monitors to improve detection sensitivity.

[0122] In another specific embodiment, the detection device for the refrigerator also includes an odor detection device 50 and a time acquisition device. The controller periodically controls the first drive device 204 to extract gas from the refrigerator into the detection chamber 20 for testing, according to a preset time. After the test is completed, the controller controls the third drive device 206 to expel the refrigerator gas from the detection chamber 20, and then controls the second drive device 205 to extract external gas for complete replacement. The detection chamber 20 is then kept in a clean external gas environment until the next test begins. This intermittent operation saves power and reduces noise. The sensor's lifespan is extended as it remains in a clean air environment for an extended period. The sensor can perform zero-point calibration in clean air each time, improving detection accuracy.

[0123] 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 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 detection chamber 20, and controls the second drive device 205 to draw in external gas for complete replacement. The 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 due to its long-term clean air environment; the sensor can also perform zero-point calibration in clean air each time, improving detection accuracy.

[0124] This disclosure also provides a refrigerator, which includes the detection device for the refrigerator according to any of the above embodiments.

[0125] The refrigerator provided in this disclosure includes the detection device for refrigerator of any of the above embodiments, and therefore has the beneficial effects of the detection device for refrigerator of any of the above embodiments, which will not be repeated here.

[0126] It should be noted that the detection device for refrigerators provided in this disclosure can be applied not only to refrigerators, but also to freezers, freezers or other refrigeration equipment.

[0127] Based on the refrigerator structure described above, this disclosure provides a method for detecting gases in a refrigerator. For example... Figure 11 As shown, the method includes:

[0128] S01, in response to the gas detection command, the refrigerator draws the gas to be tested from the containment chamber into the detection chamber for gas detection.

[0129] S02, after the gas detection is completed, the refrigerator draws in external air to replace the gas already tested in the detection chamber.

[0130] The method for gas detection in a refrigerator provided in this disclosure, in response to a gas detection command, draws the gas to be detected from the containment cavity into the detection cavity for gas detection. After the gas detection is completed, external air is drawn in to replace the gas in the detection cavity. By placing the detection cavity outside the refrigerator and drawing gas from inside the refrigerator into the external detection cavity for detection, the detection temperature of the gas sensor is increased, thereby improving the detection accuracy. This also avoids affecting the low-temperature environment inside the refrigerator, which could impact the preservation of items. Furthermore, since the detection cavity is located outside the refrigerator, it is convenient to draw clean air from the external environment for zero-point calibration of the gas sensor in the detection cavity, greatly improving the sensitivity and stability of the gas sensor and extending its service life.

[0131] Optionally, the refrigerator draws the gas to be tested from the containment cavity into the detection cavity for gas detection, including: the refrigerator acquiring the volume of the detection cavity; the refrigerator drawing the gas to be tested from the containment cavity into the detection cavity in a manner corresponding to the volume of the detection cavity; and the refrigerator detecting the gas to be tested.

[0132] In this way, the refrigerator obtains the volume of the detection chamber and extracts the gas to be tested from the container chamber into the detection chamber in a manner corresponding to the volume of the detection chamber, and finally detects the gas to be tested. Extracting gas from the refrigerator into the detection chamber for testing affects the accuracy of the detection. Therefore, by extracting the gas to be tested in a manner corresponding to the volume of the detection chamber, it is possible to ensure that the amount of gas extracted each time is consistent and appropriate, thereby ensuring the accuracy of each gas detection and improving the stability and precision of gas detection.

[0133] Optionally, the refrigerator draws the gas to be tested from the containment cavity into the detection cavity in a manner corresponding to the volume of the detection cavity, including: when the volume of the 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 detection cavity is replaced by the gas to be tested; when the volume of the 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 detection cavity.

[0134] In this way, when the refrigerator's detection chamber volume is less than the volume threshold, the detection chamber is relatively small, and the time required to fill it is also short. Therefore, continuously extracting the gas to be tested from the chamber until all the gas in the detection chamber is replaced with the gas to be tested ensures that the amount of gas extracted each time is consistent, improving the accuracy and stability of gas detection. When the refrigerator's detection chamber volume is greater than or equal to the volume threshold, the detection chamber is relatively large, and the time required to fill it is longer. Therefore, extracting a set volume of the gas to be tested into the detection chamber, to a certain extent, maintains a consistent amount of gas extracted each time, improving the accuracy and stability of the detection.

[0135] Optionally, the refrigerator determines whether the gas in the detection chamber has been completely replaced with the gas to be tested using the following method: the refrigerator obtains the gas flow rate during evacuation; the refrigerator determines the replacement time based on the gas flow rate and the volume of the detection chamber; if the evacuation time reaches the replacement time, the refrigerator determines that the gas in the detection chamber has been completely replaced with the gas to be tested.

[0136] In this way, the refrigerator obtains the gas flow rate during evacuation and determines the replacement time based on the gas flow rate and the volume of the detection chamber. If the evacuation time reaches the replacement time, it is determined that all the gas in the detection chamber has been replaced with the gas to be tested. Based on the determination of whether the replacement time has been reached, it is possible to accurately determine whether all the gas in the detection chamber has been replaced with the gas to be tested.

[0137] Optionally, the refrigerator determines whether the gas in the detection chamber has been completely replaced by the gas to be tested using the following method: the refrigerator detects the gas concentration in the detection chamber; if the gas concentration is greater than the concentration threshold, the refrigerator determines that the gas in the detection chamber has been completely replaced by the gas to be tested.

[0138] In this way, the refrigerator detects the gas concentration inside the detection chamber and, if the gas concentration exceeds a concentration threshold, determines that all the gas in the detection chamber has been replaced by the gas to be tested. The sensor response value increases with the concentration of the gas to be tested inside the refrigerator. When the sensor response value no longer increases, it indicates that the gas concentration cannot rise further, meaning that all the gas in the detection chamber has been replaced by the gas to be tested. This allows for accurate determination of whether the gas in the detection chamber has been replaced by the gas to be tested.

[0139] Optionally, the refrigerator draws a set volume of the gas to be tested into the detection chamber, including: the refrigerator determining the target pumping power and target pumping time based on the set volume; and the refrigerator drawing the gas to be tested from the containment chamber into the detection chamber according to the target pumping power and target pumping time.

[0140] In this way, the refrigerator determines the target suction power and target suction time based on the set volume, and then extracts the gas to be tested from the containment cavity into the detection cavity according to the target suction power and target suction time. Based on the set volume, i.e., the amount of gas to be extracted, the target suction power and target suction time are determined. By extracting the gas to be tested according to the target suction power and target suction time, the set volume of gas to be tested can be accurately extracted into the detection cavity, thus making the gas detection results more accurate.

[0141] Optionally, the refrigerator extracting the measured gas from the external air replacement detection chamber 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 detection chamber according to the recovery cycle.

[0142] 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.

[0143] In this way, the refrigerator sets a recovery cycle based on the detection results and draws in external air to replace the measured gas in the detection chamber according to the recovery cycle. If the gas detection result differs significantly from the normal gas detection result, it indicates that the gas sensor is more affected by the gas, requiring frequent zero-point correction to restore the gas sensor's sensitivity. Therefore, setting a recovery cycle based on the detection results can accurately restore the gas sensor's detection capability. This avoids an excessively long recovery cycle, which would lead to insufficient recovery capability, or an abrupt recovery cycle, which would result in frequent zero-point correction and excessive energy consumption.

[0144] This disclosure provides a method for detecting gases in a refrigerator. For example... Figure 12 As shown, when the first driving device is an air pump and the second driving device is a fan, the method includes:

[0145] S21, the refrigerator responds to the gas detection command and determines the current gas detection stage.

[0146] 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 detection cavity for gas detection.

[0147] S23, if the refrigerator is currently in the gas detection phase of the replacement phase, the second drive device is activated to extract external air to replace the gas already measured in the detection chamber until the next gas detection.

[0148] 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, an air pump is used; when the length of the extraction pipeline is less than the set length, a 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, an air pump is used; when the length of the replacement pipeline is less than the set length, a fan is used. In this way, when the pipeline is too long, using an air pump can increase efficiency; when the pipeline is too short, using a fan can reduce energy consumption.

[0149] The method for gas detection in a refrigerator, as provided in this embodiment, determines the current gas detection stage in response to a gas detection command. If the current gas detection stage is the extraction stage, a first driving device is activated to extract the gas to be tested from the receiving cavity into the detection cavity for gas detection. If the current gas detection stage is the replacement stage, a second driving device is activated to extract external air to replace the gas already tested in the detection cavity, until the next gas detection. By placing the detection cavity outside the refrigerator and extracting gas from inside the refrigerator into the external detection cavity for detection, the detection temperature of the gas sensor is increased, 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 extracting 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, thus affecting the preservation of items, the efficiency and accuracy of refrigerator gas detection are improved.

[0150] Optionally, the refrigerator activates the first driving device, including: the refrigerator acquiring the volume of the detection chamber; the refrigerator determining the extraction method of the gas to be tested in the chamber based on the volume of the detection chamber; and the refrigerator activating the first driving device based on the extraction method.

[0151] The refrigerator determines the extraction method of the gas to be tested in the containment cavity based on the volume of the 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 detection cavity, and will not be described in detail here.

[0152] In this way, the refrigerator obtains the volume of the detection chamber and determines the extraction method of the gas to be tested within it based on that volume. Finally, the extraction pump is activated according to the extraction method. Gas is extracted from the refrigerator into the detection chamber for testing. The amount of gas extracted affects the accuracy of the test. Therefore, by selecting a corresponding extraction method based on the volume of the detection chamber, the amount of gas extracted each time can be ensured to be consistent and appropriate, thereby guaranteeing the accuracy of each gas test and improving the stability and precision of the gas detection. Furthermore, activating the first drive device according to the extraction method ensures that the power of the first drive device is suitable for the extraction method, thus improving the extraction efficiency.

[0153] 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 detection cavity; when the extraction method is partial extraction, the refrigerator activates the first driving device according to a set volume.

[0154] Thus, when the refrigerator is in full extraction mode, it needs to continuously extract the gas to be tested from the containment cavity until all the gas in the detection cavity is replaced by the gas to be tested. Therefore, the volume of the detection cavity needs to be extracted. Based on the volume of the 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.

[0155] Optionally, the refrigerator starts the first driving device according to the volume of the detection chamber, including: the refrigerator determines the initial power corresponding to the volume of the 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.

[0156] In this way, the refrigerator determines the initial power corresponding to the volume of the detection chamber based on a preset first correspondence. This matches the initial power of the first driving device with the volume of the 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 driving device, causing it to fail to reach its theoretical power and thus fail to extract gas into the detection chamber in a timely manner. Therefore, based on the characteristics of the gas pipeline corresponding to the first driving device, the initial power is corrected to obtain the target power, and finally, the first driving device is activated according to the target power. Correcting the initial power based on pipeline characteristics avoids situations where the gas extraction power of the first driving device cannot reach the theoretical power due to pipeline 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.

[0157] 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.

[0158] In this way, the refrigerator determines the limiting power corresponding to the pipeline characteristics based on a preset second correspondence. If the initial power is less than the limiting power, the initial power is determined as the target power. If the initial power is greater than or equal to the limiting power, the limiting power is determined as the target power. The suction power is generally negatively correlated with the required suction time; the higher the suction power, the shorter the required suction time. However, the suction power is limited by the size and rigidity of the gas pipeline; the power cannot be too high, and it is necessary to ensure normal gas flow within the pipeline without generating negative pressure. Therefore, the 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.

[0159] 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.

[0160] In this way, the refrigerator determines the suction power corresponding to the set volume based on the preset third correspondence, and starts the first drive device according to the suction power. By determining the power corresponding to the set volume through the preset correspondence, the suction power of the first drive device can be matched with the set volume, thereby accurately drawing the required amount of gas to be tested into the detection chamber.

[0161] This disclosure provides a method for detecting gases in a refrigerator. For example... Figure 13 As shown, the number of accommodating cavities is one, and the accommodating cavity is defined as a storage room. The first heating device is defined as a first electric heating device, and the second heating device is defined as a second electric heating device. The method includes:

[0162] S31, in response to the gas detection command, the refrigerator draws the gas to be tested from the containment chamber into the detection chamber.

[0163] S32, the refrigerator starts the first electric heating device to heat the gas to be tested in the detection chamber, and then performs gas detection on the heated gas.

[0164] The method for gas detection in a refrigerator provided in this disclosure involves placing the detection chamber outside the refrigerator and drawing gas from inside the refrigerator into the external 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 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, the accuracy of gas detection is improved.

[0165] Optionally, the refrigerator activates the first electric heating device to heat the gas to be tested in the detection chamber, including: the refrigerator acquiring the optimal temperature for gas detection by the gas sensor; the refrigerator activating the first electric heating device to heat the gas to be tested in the detection chamber to the optimal temperature.

[0166] 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.

[0167] Optionally, the refrigerator activates the first electric heating device to heat the gas to be tested in the 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.

[0168] 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.

[0169] 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 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.

[0170] Thus, as the gas to be tested travels from the storage chamber through the pipeline to the 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 detection chamber and the desired optimal temperature can improve the accuracy of the first target power and thus avoid energy waste.

[0171] 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.

[0172] 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 detection chamber, thereby improving the heating efficiency.

[0173] Optionally, before the refrigerator draws the gas to be tested from the containment chamber into the detection chamber, the refrigerator further includes: activating a second electric heating device to heat the gas to be tested flowing through the first pipeline.

[0174] In this way, the gas to be tested can be heated in advance before it reaches the detection chamber, thereby shortening the heating time of the gas to be tested in the detection chamber, allowing the gas to reach the optimal temperature more quickly, and improving the efficiency of gas detection.

[0175] Optionally, the refrigerator activates the second electric heating device to heat the gas to be tested flowing through the first pipeline, including: the refrigerator determining a 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 first pipeline.

[0176] In this way, by determining the second target power based on the temperature of the containment cavity, the preheating operation of the first pipeline on the gas to be tested can be more precise, thereby making the temperature of the gas to be tested flowing into the detection cavity closer to the optimal temperature.

[0177] This disclosure provides a method for detecting gases in a refrigerator. For example... Figure 14As shown, when there are multiple cavities, each cavity is defined as a storage room, the first heating device is defined as the target electric heating device, and the second heating device is defined as the compensating electric heating device. The method includes:

[0178] S41, the refrigerator responds to the gas detection command and determines the target storage compartment that needs to be detected for gas.

[0179] S42, the refrigerator starts the target electric heating device in the first pipeline corresponding to the target storage compartment, and draws the gas to be tested from the target storage compartment into the detection chamber for gas detection.

[0180] The process of the refrigerator drawing the gas to be tested from the target storage compartment into the 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. The compensation electric heating device can be the first electric heating device in the refrigerator structure.

[0181] The method for gas detection in a refrigerator provided in this disclosure involves placing the detection chamber outside the refrigerator and drawing gas from inside the refrigerator into the external 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 preheating the gas to be tested through a target heating device in the first pipe corresponding to the target storage compartment, the temperature of the gas flowing into the detection chamber can be regulated, avoiding the influence of different storage compartment temperatures and pipe lengths on the gas temperature, 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 the length of the corresponding first pipe on gas detection, the accuracy of gas detection results is improved.

[0182] Optionally, the refrigerator activates the target electric heating device in the first pipeline 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.

[0183] In this way, as the gas to be tested travels from the target storage chamber through the pipeline to the 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 detection chamber can improve the accuracy of the target power and thus avoid energy waste.

[0184] 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.

[0185] In this way, by determining the target power based on the difference between the current temperature of the gas to be tested entering the detection chamber and the optimal temperature to be reached, the target power can be adapted to the current temperature of the gas to be tested in the detection chamber, thereby improving the accuracy of the gas detection results.

[0186] 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.

[0187] 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 detection chamber, thereby improving the heating efficiency.

[0188] 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 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.

[0189] 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.

[0190] 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.

[0191] 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.

[0192] This disclosure provides a method for detecting gases in a refrigerator. For example... Figure 15 As shown, the receiving cavity is defined as a storage room, and the method includes:

[0193] S51, in response to a gas detection command, the refrigerator determines the target storage compartment that needs to be tested for gas.

[0194] S52, the refrigerator starts the first driving device according to the volume of the detection chamber and the pipeline characteristics of the first pipeline corresponding to the target storage compartment, and draws the gas to be tested from the target storage compartment into the detection chamber for gas detection.

[0195] The process of the refrigerator drawing the gas to be tested from the target storage compartment into the 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 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 detection chamber.

[0196] The method for gas detection in a refrigerator provided in this disclosure involves placing the detection chamber outside the refrigerator and drawing gas from inside the refrigerator into the external detection chamber for detection. This increases the detection temperature of the gas sensor, thereby improving detection accuracy, while 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 first 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.

[0197] Optionally, the refrigerator starts the first driving device based on the volume of the detection chamber and the pipeline characteristics of the first pipeline 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 detection chamber; the refrigerator correcting the initial operating parameters based on the pipeline characteristics and the distance between the target storage compartment and the 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 the air extraction power and the air extraction duration.

[0198] In this way, the refrigerator determines the initial operating parameters of the first drive device based on the volume of the detection chamber. Since different 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 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 first pipeline will also vary. Therefore, by correcting the initial operating parameters through pipeline characteristics and the distance between the target storage compartment and the detection chamber, the length and usage of the first pipeline 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 detection chamber and improving the accuracy of the gas detection results.

[0199] Optionally, the refrigerator determines the initial operating parameters of the first driving device based on the volume of the detection chamber, including: the refrigerator determining the extraction method of the gas to be tested in the chamber based on the volume of the detection chamber; and the refrigerator determining the initial operating parameters based on the extraction method.

[0200] The refrigerator determines the extraction method of the gas to be tested in the cavity based on the volume of the detection cavity, which is the same as the steps for determining the extraction method mentioned above, and will not be repeated here.

[0201] In this way, determining the extraction method based on the volume of the detection cavity 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.

[0202] 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 according to the volume of the detection chamber; when the extraction method is partial extraction, the refrigerator determines the initial operating parameters according to the set volume.

[0203] 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.

[0204] Optionally, the refrigerator corrects the initial operating parameters based on the pipeline characteristics and the distance between the target storage compartment and the 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.

[0205] In this way, since the locations of different storage compartments are different, the length and usage of the corresponding first pipeline will also be different. By correcting the initial operating parameters through pipeline characteristics and the distance between the target storage compartment and the detection chamber, the length and usage of the first 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 detection chamber remains consistent and improving the accuracy of gas detection results.

[0206] Optionally, the controller is configured to perform the method for refrigerator gas detection in any of the above embodiments.

[0207] Combination Figure 16 As shown, this disclosure provides a detection device for a refrigerator, including a processor 100 and a memory 1001. Optionally, the device 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 100 can call logical instructions in the memory 1001 to execute the refrigerator gas detection method described in the above embodiment.

[0208] 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.

[0209] 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.

[0210] 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.

[0211] This disclosure provides a refrigerator including a receiving cavity and an external detection cavity; and the aforementioned detection device for the refrigerator.

[0212] This disclosure provides a storage medium storing computer-executable instructions configured to perform the above-described method for detecting gas in a refrigerator.

[0213] The aforementioned storage medium can be either transient or non-transient.

[0214] 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.

[0215] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural 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 or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A refrigerator, comprising a detection device for the refrigerator and a cabinet, the cabinet defining a receiving cavity, characterized in that, The detection device for the refrigerator includes: The detection chamber is located on the outside of the housing; A first pipeline connects the receiving cavity and the detection cavity, allowing gas in the receiving cavity to enter the detection cavity through the first pipeline. A detection device, located inside the detection chamber, is used to detect the gas inside the detection chamber; A first driving device is connected to the first pipeline and is used to drive the gas in the receiving cavity to flow into the detection cavity through the first pipeline; The refrigerator determines the extraction method of the gas to be tested in the containment cavity based on the volume of the detection cavity, including: when the volume of the detection cavity is less than the volume threshold, continuously extracting the gas to be tested in the containment cavity until all the gas in the detection cavity is replaced by the gas to be tested; when the volume of the detection cavity is greater than or equal to the volume threshold, the refrigerator extracts a set volume of the gas to be tested into the detection cavity. The refrigerator determines the initial operating parameters of the first drive unit based on the extraction method; The refrigerator corrects its initial operating parameters based on the characteristics of the piping and the distance between the target receiving cavity and the detection cavity to obtain the target operating parameters; The refrigerator starts the first drive unit according to the target operating parameters; the initial operating parameters include the air extraction power and the air extraction duration.

2. The refrigerator according to claim 1, characterized in that, Also includes: The second pipe connects the detection chamber to the outside, and is used to introduce outside air into the detection chamber; And / or, The third pipe connects the detection chamber to the outside, and is used to discharge the airflow in the detection chamber to the outside.

3. The refrigerator according to claim 2, characterized in that, When the detection device for a refrigerator includes a second pipeline, the detection device for a refrigerator further includes: The second driving device is connected to the second pipeline and can drive outside air to flow into the detection chamber through the second pipeline.

4. The refrigerator according to claim 2, characterized in that, When the detection device for a refrigerator includes a third pipeline, the detection device for a refrigerator further includes: A third driving device, connected to the third pipeline, is capable of driving the gas in the detection chamber to flow out to the outside; and / or, A damper is controllably installed in the third pipeline for opening or closing the third pipeline.

5. The refrigerator according to claim 2, characterized in that, Also includes: A purification device is connected to the outlet end of the third pipeline so that the gas flowing out of the third pipeline is purified by the purification device before flowing to the outside.

6. The refrigerator according to claim 1, characterized in that, When there are multiple cavities, the number of first pipes is the same as the number of cavities and corresponds one-to-one, and multiple first pipes are connected to one detection cavity and multiple cavities.

7. The refrigerator according to claim 1, characterized in that, The first conduit is at least partially bent to increase its length.

8. The refrigerator according to any one of claims 1 to 7, characterized in that, The detection chamber is located at the top of the housing; and / or, The detection chamber is located on the side of the housing; and / or, The detection chamber is located inside the compressor compartment of the refrigerator to increase the temperature of the gas inside the detection chamber.

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