Control method of refrigerator

Abstract

The invention provides a control method of a refrigerator, which comprises the following steps of: confirming a door state and a defrosting state of the refrigerator, acquiring a real-time concentration value of peculiar smell in a refrigerating chamber when a door of the refrigerator is closed and the refrigerator is not in the defrosting state, and comparing the real-time concentration value with a preset concentration value; when the real-time concentration value is larger than the preset concentration value, an exhaust mode is operated; the exhaust mode comprises the steps that the air curtain fan is controlled to operate, the air door assembly guides air in the air inlet duct into the exhaust duct, air in the refrigerating chamber is exhausted out of the refrigerator, and therefore peculiar smell in the refrigerating chamber can be effectively exhausted.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and in particular to a control method for a refrigerator. Background Art

[0002] For air-cooled refrigerator products, according to existing test results: when the ambient temperature is 30°C, the temperature inside the refrigerator will rise by 5°C-6°C if the refrigerator door is opened for 10 seconds. If it is opened for 1-2 minutes, the temperature inside the box will reach the external ambient temperature. After closing the refrigerator door, if the compartment temperature is to return to the set temperature, the compressor must continue to run for at least 20 minutes. Under the existing technology, a large amount of cold energy is lost during the door opening stage of the refrigerator. The door opening stage of the refrigerator will not only cause huge temperature fluctuations in the compartment, affecting the freshness of the food, but also increase the power consumption of the refrigerator accordingly. Therefore, in the existing technology, an air curtain structure is set in the refrigerator to isolate the air flow inside and outside the refrigerator after the refrigerator is opened.

[0003] Wind curtains, also known as air curtains, are mainly used above the entrances of shopping malls, theaters, hotels, restaurants, etc. for refrigeration, air conditioning, dust prevention, and heat insulation. They can isolate indoor and outdoor air and prevent the indoor and outdoor air from exchanging cold and heat. At the same time, they also have the functions of dust prevention, pollution prevention, and mosquito and fly prevention.

[0004] In everyday life, users often place vegetables, meat, seafood, and fruit in their refrigerators. Due to the wide variety of ingredients, each has its own unique odor. To ensure proper cooling performance, air-cooled refrigerators often operate in an internal circulation system. Over time, the odors of these ingredients accumulate, causing odors to gradually increase within the refrigerator compartment. Because the air circulation in air-cooled refrigerators is internal, the odorous gases constantly circulate within the refrigerator, making it impossible to remove odors from the refrigerator compartment. Summary of the Invention

[0005] The object of the present invention is to provide a control method for a refrigerator so as to effectively discharge odors in a refrigeration compartment.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] According to one aspect of the present invention, there is provided a control method for a refrigerator, the refrigerator comprising a refrigerating chamber and an air curtain assembly; the air curtain assembly comprising an air inlet duct, an air curtain duct, an exhaust duct, an air curtain fan and an air door assembly; the air curtain fan is arranged in the air inlet duct; the air inlet duct is provided with an air inlet that passes through the air inlet duct and the refrigerating chamber; the air curtain duct is provided with an air curtain outlet for discharging air downward at the front end of the refrigerating chamber; the exhaust duct is provided with an air outlet that passes through the outside of the refrigerator; the inlet of the exhaust duct and the inlet of the air curtain duct are respectively connected to the air inlet duct; the air door assembly can selectively guide the gas in the air inlet duct into the air curtain duct or the exhaust duct;

[0008] The control method includes:

[0009] Confirm the door status and defrost status of the refrigerator, and when the refrigerator door is closed and the refrigerator is not in the defrost state, obtain the real-time concentration value of the odor in the refrigerator compartment, and compare the real-time concentration value with the preset concentration value; when the real-time concentration value is greater than the preset concentration value, operate the exhaust mode; the exhaust mode includes: controlling the operation of the air curtain fan, and the damper assembly directing the gas in the air inlet duct into the exhaust duct.

[0010] In some embodiments of the present application, after running the exhaust mode for a preset time, the size of the real-time concentration value and the preset concentration value is confirmed; when the real-time concentration value is less than or equal to the preset concentration value, the conduction between the air inlet duct and the exhaust duct is closed.

[0011] In some embodiments of the present application, a humidifier is also provided in the air curtain duct; after closing the connection between the air inlet duct and the exhaust duct, the real-time humidity value of the odor in the cold storage room is obtained, and when the real-time humidity value is less than the preset humidity value, the air curtain fan is controlled to operate, and the damper assembly introduces the gas in the air inlet duct into the air curtain duct.

[0012] In some embodiments of the present application, when the refrigerator door is open and the refrigerator is in the defrosting state, the real-time concentration value of the odor in the refrigerated compartment is obtained, and the real-time concentration value is compared with the preset concentration value; when the real-time concentration value is greater than the preset concentration value, the exhaust mode is operated.

[0013] In some embodiments of the present application, when the refrigerator door is open and the refrigerator is not in a defrosting state, the air curtain fan is controlled to operate, and the damper assembly introduces the gas in the air inlet duct into the air curtain duct to form an air curtain in the refrigeration chamber.

[0014] In some embodiments of the present application, before running the exhaust mode, the initial temperature of the refrigerator compartment is obtained; when running the exhaust mode, the real-time temperature of the refrigerator compartment is obtained. When the ratio of the real-time temperature to the initial temperature is greater than a preset ratio, the operation mode is turned off and the refrigerator compartment is refrigerated.

[0015] In some embodiments of the present application, when the refrigerator compartment is refrigerated, when the real-time temperature T1 in the refrigerator compartment is less than or equal to the preset temperature, the real-time concentration value R1 of the odor in the refrigerator compartment is obtained and used to determine whether to operate the exhaust mode.

[0016] In some embodiments of the present application, before confirming the door status and defrost status of the refrigerator, the real-time item types of the items stored in the refrigerating chamber are obtained; the real-time item types are compared with the pre-stored item types in the refrigerating chamber, and if the real-time item types include marked item types, the exhaust mode is operated; the pre-stored item types in the refrigerating chamber are the item type information pre-stored in the refrigerating chamber, and the marked item types are pre-marked items with a volatile gas concentration greater than a preset value.

[0017] In some embodiments of the present application, after obtaining the type of marked items stored in the refrigerated chamber, the exhaust mode is operated after a preset time period and after confirming that the door is closed.

[0018] In some embodiments of the present application, the exhaust mode is turned off after running the exhaust mode for a preset time period.

[0019] In the present invention, when the real-time concentration of odor in the refrigerator compartment exceeds a preset concentration, the air curtain fan is controlled to operate, and the damper assembly directs the air in the air inlet duct into the exhaust duct, operating the exhaust mode. The air in the refrigerator compartment is discharged outside the refrigerator, effectively removing the odor from the refrigerator compartment.

[0020] Other features and advantages of the present application will become apparent from the following detailed description, or may be learned in part by practice of the present application.

[0021] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification, are used to explain the principles of the present disclosure. Obviously, the drawings described below are only some embodiments of the present disclosure, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0023] Figure 1 It is a structural schematic diagram of a refrigerator embodiment of the present invention.

[0024] Figure 2 2 is a schematic structural diagram of a refrigerator compartment in an embodiment of the present invention.

[0025] Figure 3 yes Figure 2 A structural schematic diagram of the structure shown from another perspective.

[0026] Figure 4 yes Figure 2 Schematic cross-section of the structure shown.

[0027] Figure 5 It is a schematic structural diagram of the air curtain assembly on the top plate of the present invention.

[0028] Figure 6 It is a structural schematic diagram of the top plate of the present invention from one perspective.

[0029] Figure 7 It is a structural schematic diagram of the top plate of the present invention from another perspective.

[0030] Figure 8 It is a schematic diagram of the connection between the damper assembly and the exhaust duct of the present invention.

[0031] Figure 9 It is a structural schematic diagram of the damper assembly of the present invention from one perspective.

[0032] Figure 10 It is a structural schematic diagram of the damper assembly of the present invention from another perspective.

[0033] Figure 11 It is a partial structural schematic diagram of the damper assembly of the present invention.

[0034] Figure 12 It is a structural schematic diagram of the damper housing of the present invention.

[0035] Figure 13 It is a flow chart of the refrigerator control method of the present invention.

[0036] Figure 14 It is a control diagram of the refrigerator control method of the present invention.

[0037] Figure 15 4 is another flow chart of the refrigerator control method of the present invention.

[0038] The reference numerals in the accompanying drawings are as follows: 100, cabinet; 110, refrigerator compartment; 120, freezer compartment; 200, air duct assembly; 300, air curtain assembly; 310, air inlet duct; 311, air curtain fan; 312, air inlet; 320, air curtain duct; 321, air curtain outlet; 330, exhaust duct; 340, damper assembly; 341, damper housing; 342, damper baffle; 343, damper motor; 344, main drive gear; 345, auxiliary gear; 346, driven gear; 347, air guide outlet; 350, humidification box; 400, top plate; 410, air guide rib; 420, window. DETAILED DESCRIPTION

[0039] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art.

[0040] In addition, described feature, structure or characteristic can be combined in one or more embodiments in any suitable manner.In the following description, many specific details are provided so as to provide a full understanding of the embodiments of the present application. However, it will be appreciated by those skilled in the art that the technical scheme of the present application can be put into practice without one or more of the specific details, or other methods, components, devices, steps etc. can be adopted. In other cases, known methods, devices, implementations or operations are not shown or described in detail to avoid blurring the various aspects of the application.

[0041] The present application is further described below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the technical features involved in the various embodiments of the present application described below can be combined with each other as long as they do not conflict with each other. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be understood as limiting the present application.

[0042] In real life, users often place vegetables, meat, seafood, fruit, and other ingredients into their refrigerators. Due to the wide variety of ingredients, each has its own unique odor. To ensure proper cooling performance, air-cooled refrigerators often operate in an internal gas circulation system. Over time, the odors of these various ingredients accumulate, causing odors to gradually increase within the refrigerator compartment. Because the gas circulation in air-cooled refrigerators is internal, the odorous gas constantly circulates within the refrigerator, making it impossible to remove odors from the refrigerator compartment. The present application provides a refrigerator to address the aforementioned technical problems.

[0043] Figure 1 It is a structural schematic diagram of a refrigerator embodiment of the present invention. Figure 21 is a schematic structural diagram of the refrigerating chamber 110 in an embodiment of the refrigerator of the present invention. Figure 3 yes Figure 2 A structural schematic diagram of the structure shown from another perspective. Figure 4 yes Figure 2 Schematic cross-section of the structure shown.

[0044] See Figures 1 to 4 A refrigerator is an appliance that maintains a constant low temperature for storing items. The refrigerator in this embodiment can also be a refrigerated display cabinet or wine cabinet. The following description uses a refrigerator as an example. The refrigerator comprises a housing 100, an air duct assembly 200 disposed within the housing 100, an air curtain assembly 300 disposed within the housing 100, and a refrigeration assembly disposed within the housing 100.

[0045] The refrigerator body 100 is constructed with a front-opening refrigerator compartment 110 and a freezer compartment 120, which together form the refrigeration compartment of the refrigerator. The refrigerator compartment 110 and the freezer compartment 120 are spaced apart, and the refrigeration assembly transfers cold energy to the air within the air duct assembly 200, thereby providing cool air within the air duct assembly 200. The air duct assembly 200 can selectively connect to the refrigerator compartment 110 or the freezer compartment 120 to direct air from the air duct assembly 200 into the refrigerator compartment 110 and / or the freezer compartment 120, thereby cooling the refrigerator compartment 110 and the freezer compartment 120, respectively, to maintain a refrigerated and frozen environment.

[0046] In this embodiment, the refrigerating chamber 110 and the freezing chamber 120 are each provided with an air outlet and an air return port that are in communication with the air duct assembly 200, so that the air in the refrigerating chamber 110 and the freezing chamber 120 can circulate with the air in the air duct assembly 200, respectively, so that the air in the air duct assembly 200 can transfer cold energy to the refrigerating chamber 110 and the freezing chamber 120, respectively. Temperature sensors are each provided in the refrigerating chamber 110 and the freezing chamber 120 for detecting the real-time temperature T1 in the refrigerating chamber 110 and the freezing chamber 120.

[0047] The front side of the refrigerator compartment 110 is provided with a refrigerator door (not shown in the figure), which is covered on the front side of the box body 100 and is rotatably connected to the box body 100 to open or close the refrigerator compartment 110, so that items can be taken in and out of the refrigerator compartment 110. The front side of the freezer compartment 120 is provided with a freezer door.

[0048] The connection relationship of the specific structure of the box body 100 can be referred to the structure of the box body 100 in the related art, which will not be described in detail here.

[0049] In this embodiment, the air curtain assembly 300 is arranged in the refrigerating chamber 110, and is used to form an air curtain at the front end of the refrigerating chamber 110 after the refrigerating chamber 110 is opened, so as to block the heat exchange inside and outside the refrigerating chamber 110, thereby effectively ensuring the low temperature environment of the refrigerating chamber 110.

[0050] The air duct assembly 200 is disposed in the cabinet 100 and can provide cooling to the refrigerating chamber 110 and the freezing chamber 120. The specific structure and position relationship of the air duct assembly 200 can be referred to the structure and position relationship of the air duct assembly 200 in the related art and will not be repeated here.

[0051] The refrigeration assembly is used to release heat from the refrigeration room to the outside environment, providing cooling to maintain a low temperature within the refrigeration room. The refrigeration assembly includes components such as a compressor, condenser, evaporator, and capillary tube. The compressor, condenser, capillary tube, and evaporator are connected in sequence, with the evaporator outlet connected to the compressor inlet, forming a channel for the refrigerant to circulate within the compressor, condenser, capillary tube, and evaporator.

[0052] The high-temperature, high-pressure gaseous refrigerant in the compressor is transported to the condenser, where it releases heat to the surrounding environment, converting it into a low-temperature, high-pressure liquid refrigerant. The low-temperature, high-pressure liquid refrigerant undergoes capillary throttling and pressure reduction, converting it into a low-temperature, low-pressure liquid refrigerant. This low-temperature, low-pressure liquid refrigerant is then transported to the evaporator and heat exchanged with the air within the air duct assembly 200.

[0053] An evaporation chamber for accommodating an evaporator is provided in the housing 100. The evaporation chamber can be located in the air duct assembly 200 or can be provided separately. A heater is provided in the evaporation chamber to heat the air in the evaporation chamber for defrosting.

[0054] Figure 5 Schematic diagram of the structure of the air curtain assembly 300 on the top plate 400 of the present invention. Figure 6 It is a structural schematic diagram of the top plate 400 of the present invention from one perspective. Figure 7 It is a structural schematic diagram of the top plate 400 of the present invention from another perspective.

[0055] See Figures 1 to 7 In this embodiment, the air curtain assembly 300 is disposed in the refrigerating chamber 110 and is located at the top of the refrigerating chamber 110 .

[0056] In one embodiment, the air curtain assembly 300 is disposed outside the refrigerating chamber 110 and is located outside the top of the refrigerating chamber 110 .

[0057] The air curtain assembly 300 may include an air inlet duct 310, which is connected to the refrigerating chamber 110 to draw air from the refrigerating chamber 110 into the air inlet duct 310. An air curtain fan 311 is provided in the air inlet duct 310 to draw air from the refrigerating chamber 110 into the air inlet duct 310. The air inlet duct 310 is provided with an air inlet 312 that passes through the air inlet duct 310 and the refrigerating chamber 110.

[0058] The air curtain assembly 300 may include an air curtain duct 320. The air curtain duct 320 is provided with an air curtain outlet 321 for downward air discharge at the front end of the refrigeration chamber 110. The inlet of the air curtain duct 320 is respectively connected to the air inlet duct 310, so that the air in the air inlet duct 310 can enter the air curtain duct 320. The air in the air curtain duct 320 is discharged from the air curtain outlet 321, thereby forming an air curtain at the front end of the refrigeration chamber 110.

[0059] The air curtain assembly 300 may include an exhaust duct 330, the entrance of which is connected to the air inlet duct 310. The exhaust duct 330 has an exhaust port (not shown) extending through the housing 100, allowing air within the air inlet duct 310 to be discharged outside the refrigerator through the exhaust duct 330. Air within the refrigerator compartment 110 can then pass through the air inlet duct 310 and the exhaust duct 330, and be discharged outside the refrigerator. This allows odorous air within the refrigerator compartment 110 to be discharged outside the refrigerator, thereby removing odors.

[0060] The box body 100 is provided with an inner container with an opening at the front side, and a refrigerating chamber 110 is formed in the inner container. A top plate 400 is provided in the inner container, and the top plate 400 covers the top wall of the inner container, and an air inlet duct 310 and an air curtain duct 320 are formed between the top wall of the inner container and the top plate 400.

[0061] The upper surface of the top plate 400 is formed with protruding air guide ribs 410, which are attached to the top wall of the inner liner; an air inlet duct 310 and an air curtain duct 320 are formed between the air guide ribs 410, the top wall of the inner liner and the top plate 400.

[0062] An air curtain duct 320 is formed at the top of the refrigerating chamber 110. An air curtain fan 311 is disposed within the air inlet duct 310. A plurality of through-holes are provided on the top plate 400, forming an air curtain outlet 321 and an air inlet 312 of the air inlet duct 310. The air curtain outlet 321 and the air inlet 312 extend through the refrigerating chamber 110. The air inlet 312 of the air inlet duct 310 is located behind the air curtain outlet 321. This allows the air curtain assembly 300 to circulate air within the refrigerating chamber 110 between the air curtain assembly 300 and the refrigerating chamber 110, thereby maintaining a uniform temperature within the refrigerating chamber 110.

[0063] In this embodiment, the air inlet 312 of the air inlet duct 310 is disposed within the refrigerating chamber 110. The air used to form the air curtain in the air curtain duct 320 comes from the refrigerating chamber 110, rather than from the air duct assembly 200. This effectively prevents the air within the air duct assembly 200 from affecting the air curtain at the front of the refrigerating chamber 110. The air curtain outlet 321 is disposed at the front end of the refrigerating chamber 110, and the air curtain outlet 321 discharges air downward, thereby forming an air curtain at the front end of the refrigerating chamber 110.

[0064] In this embodiment, the air inlet 312 of the air inlet duct 310 is adjacent to the rear wall of the refrigerating chamber 110, so that the air curtain assembly 300 can drive the air flow in the refrigerating chamber 110 to the maximum extent and range, making the temperature in the refrigerating chamber 110 more uniform.

[0065] In this embodiment, the air curtain fan 311 is a volute fan, and the rotation axis of the fan blades of the volute fan is arranged vertically, so that the volute fan rotates in a horizontal plane; the extension direction of the air outlet of the volute fan is tangent to the rotation circle of the fan blades of the volute fan. The rotation axis of the volute fan is arranged vertically, so that the fan blades of the volute fan are arranged horizontally, so that the height of the volute fan in the vertical direction is narrower. After the volute fan is arranged in the air inlet duct 310, the space occupied in the vertical direction is smaller, so that on the basis of ensuring the installation of the volute fan, the lower surface of the top plate 400 has a smaller distance relative to the upper wall of the cold storage chamber 110, and the air curtain assembly 300 occupies a smaller volume of the cold storage chamber 110, so that the cold storage chamber 110 has a larger effective volume.

[0066] The air inlet of the volute fan is arranged vertically, and the air inlet 312 is located directly below the air inlet of the volute fan, so as to facilitate the volute fan to draw air from the cold storage chamber 110, so that the path between the air in the cold storage chamber 110 and the air inlet 312 of the volute fan is shorter, the kinetic energy loss is smaller, and the air output at the air curtain outlet 321 is larger.

[0067] Figure 8 It is a schematic diagram of the connection between the damper assembly 340 and the exhaust duct 330 of the present invention. Figure 9 It is a structural schematic diagram of the damper assembly 340 of the present invention from one perspective. Figure 10 It is a structural schematic diagram of the damper assembly 340 of the present invention from another perspective. Figure 11 It is a partial structural diagram of the damper assembly 340 of the present invention. Figure 12 It is a structural schematic diagram of the damper housing 341 of the present invention.

[0068] See Figures 2 to 12 The air curtain assembly 300 may include a damper assembly 340 , and the inlet of the exhaust duct 330 and the inlet of the air curtain duct 320 are respectively connected to the air inlet duct 310 ; the damper assembly 340 can selectively introduce the gas in the air inlet duct 310 into the air curtain duct 320 or the exhaust duct 330 .

[0069] In this embodiment, the inlet of the exhaust duct 330 and the inlet of the air curtain duct 320 are respectively connected to the outlet of the air inlet duct 310, and the damper assembly 340 is arranged at the outlet of the air inlet duct 310 so as to selectively introduce the gas in the air inlet duct 310 into the air curtain duct 320 or the exhaust duct 330.

[0070] The damper assembly 340 may include a damper housing 341 fixed at the outlet of the air inlet duct 310. The damper housing 341 has two air guide ports 347, which correspond to the exhaust duct 330 and the air curtain duct 320, respectively. In some embodiments, two damper housings 341 are provided, and each of the two damper housings 341 has an air guide port 347.

[0071] The damper assembly 340 may include two damper baffles 342, which are rotatably arranged on the damper housing 341 to respectively open and close the corresponding air guide ports 347, thereby controlling the formation of a wind curtain in the refrigeration chamber 110 or discharging the gas in the refrigeration chamber 110.

[0072] The damper assembly 340 may include a driving unit for driving the damper baffle 342 to rotate, and the driving unit is used to control the rotation of the damper baffle 342 to control the opening and closing of the corresponding air guide port 347.

[0073] In this embodiment, the driving unit may include a damper motor 343 for driving the damper baffle 342 to rotate.

[0074] The driving unit may further include a main transmission gear 344 fixedly connected to the output shaft of the damper motor 343. The main transmission gear 344 is in transmission connection with the damper baffle 342 to drive the damper baffle 342 to rotate.

[0075] The driving unit may further include two auxiliary gears 345 , which are respectively engaged with the main transmission gear 344 , and the two auxiliary gears 345 are respectively connected to a damper baffle 342 to drive the corresponding damper baffle 342 to rotate.

[0076] The drive unit can also include two driven gears 346, which are fixed on the rotating shaft of the damper baffle 342; two auxiliary gears 345 are respectively engaged with the main transmission gear 344; the two auxiliary gears 345 are provided with teeth at part of their own axial positions for engaging with the driven gears 346, so that when the damper motor 343 rotates forward and reverse, they can respectively drive the two damper baffles 342 to rotate.

[0077] The two driven gears 346 are formed with a meshing area (an area provided with teeth) and a smooth area (an area not provided with teeth) in the axial direction.

[0078] In this embodiment, a through window 420 is provided on the top plate 400, and a detachable humidification box 350 is provided in the window 420. The humidification box 350 is located in the air curtain duct 320 for humidifying the refrigeration chamber 110. The humidification box 350 is detachably connected so that humidification water can be added to the humidification box 350.

[0079] An odor sensor is installed in the refrigerator compartment 110 to detect odor components or concentrations within the compartment to determine the concentration of odors within the compartment. The odor sensor can record the concentration of odors within the refrigerator compartment 110 and monitor the odor situation within the compartment in real time. If the odor sensor detects an excessively high concentration of odor within the compartment, it will initiate a self-cleaning process to remove odors from the compartment.

[0080] A humidity sensor may also be provided in the refrigerating chamber of the refrigerator to detect the humidity in the refrigerating chamber.

[0081] A temperature sensor may also be provided in the refrigerator compartment to detect the humidity in the refrigerator compartment.

[0082] A camera can also be installed in the refrigerator's cold storage compartment to capture information about items placed inside. Pre-stored item categories are pre-stored information about the types of items in the refrigerator compartment, and marked item categories are pre-marked items with volatile gas concentrations exceeding a preset value. Marked item categories include durian, leeks, and others.

[0083] In the present invention, the air duct assembly 200 provides cooling to the refrigerator compartment 110, creating a refrigerated environment within the refrigerator compartment 110. The air curtain fan 311 drives the air within the refrigerator compartment 110 through the air inlet duct 310, the damper assembly 340, and the air curtain duct 320, forming an air curtain at the front end of the refrigerator compartment 110. The air curtain fan 311 provides power to the cold air within the air curtain duct 320, increasing the air output from the air curtain outlet 321. This creates a larger air curtain at the front end of the refrigerator compartment 110, enhances the heat insulation performance of the air curtain, effectively isolates the air inside and outside the refrigerator compartment 110, and improves the refrigerator's refrigeration performance.

[0084] The exhaust duct 330 has an exhaust port extending to the outside of the refrigerator body 100. The inlet of the exhaust duct 330 and the inlet of the air curtain duct 320 are respectively connected to the air inlet duct 310. The damper assembly 340 can selectively direct the air in the air inlet duct 310 into the air curtain duct 320 and the exhaust duct 330, thereby selectively forming an air curtain in the refrigerator compartment 110. Alternatively, the air in the refrigerator compartment 110 can be discharged outside the refrigerator to effectively remove odors from the refrigerator compartment.

[0085] Figure 13 It is a flow chart of the refrigerator control method of the present invention.

[0086] See Figure 13 , and combined with Figures 1 to 12 , this embodiment also provides a refrigerator control method:

[0087] Confirm the door status and defrost status of the refrigerator. When the refrigerator door is closed and the refrigerator is not in the defrost state, obtain the real-time concentration value R1 of the odor in the refrigerator compartment, and compare the real-time concentration value R1 with the preset concentration value R0; when the real-time concentration value R1 is greater than the preset concentration value R0, run the exhaust mode.

[0088] The exhaust mode controls the air curtain fan to operate, and the damper assembly directs air from the air inlet duct into the exhaust duct. This exhaust mode allows air in the refrigerator to be exhausted, thereby removing any unpleasant odors from the refrigerator.

[0089] The odor sensor detects the odor concentration in the refrigerator. When the odor concentration in the refrigerator exceeds the preset concentration, the exhaust mode is operated to remove odors in the refrigerator.

[0090] After running the exhaust mode for a preset time, confirm the size of the real-time concentration value R1 and the preset concentration value R0; when the real-time concentration value R1 is less than or equal to the preset concentration value R0, close the conduction between the air inlet duct and the exhaust duct to close the exhaust mode.

[0091] In this embodiment, the rotation of the damper motor drives the damper baffle to rotate, thereby driving the corresponding air outlet to open and close, so as to drive the air inlet duct to communicate with the exhaust duct or the air curtain duct.

[0092] After closing the connection between the air inlet and exhaust ducts, a real-time humidity value S1 of the odor in the refrigerator is obtained. When the real-time humidity value S1 is less than a preset humidity value S0, the air curtain fan is controlled to operate, and the damper assembly directs the air in the air inlet into the air curtain duct. A humidifier is disposed in the air curtain duct to allow the air in the air curtain duct to enter the refrigerator to humidify the refrigerator.

[0093] When the real-time humidity value S1 is greater than or equal to the preset humidity value S0, the conduction between the air inlet duct and the air curtain duct is closed.

[0094] Figure 14 It is a control diagram of the refrigerator control method of the present invention.

[0095] See Figures 1 to 14 In this embodiment, before the exhaust mode is run, the initial temperature T0 in the refrigerated room is obtained; when the exhaust mode is run, the real-time temperature T1 in the refrigerated room is obtained. When the ratio of the real-time temperature T1 to the initial temperature T0 is greater than the preset ratio, the operation mode is turned off and the refrigerated room is cooled.

[0096] When the refrigerator is working, the temperature inside the refrigerator compartment is recorded in real time, or before the exhaust mode starts, the temperature inside the refrigerator compartment is recorded.

[0097] In this embodiment, the preset ratio is 8° C. In some embodiments, the preset ratio is greater than 8° C. In another embodiment, the preset ratio is 8° C.

[0098] When the refrigerator compartment is refrigerated, when the real-time temperature T1 in the refrigerator compartment is less than or equal to the preset temperature, the real-time concentration value R1 of the odor in the refrigerator compartment is obtained and used to determine whether to operate the exhaust mode.

[0099] In this embodiment, when the door is closed, if the defrost state has not been entered at this time, the odor sensor in the refrigerator can monitor the odor concentration value inside the refrigerator in real time. When the real-time concentration value R1 is greater than the preset concentration value R0, the odorous gas is discharged from the refrigerator to operate the exhaust mode.

[0100] After the exhaust mode runs for a preset time, the difference between the real-time concentration value R1 and the preset concentration value R0 is determined. In this embodiment, the preset time is 30 minutes. In some embodiments, the preset time is greater than or equal to 30 minutes. In another embodiment, the preset time is less than 30 minutes.

[0101] After the exhaust mode runs for a preset time, it detects whether the real-time concentration value R1 is less than the real-time concentration value R0. If it has not reached the target, the exhaust mode continues to run until R1 is less than R0. After R1 is less than R0, the exhaust mode is turned off.

[0102] After the exhaust mode is turned off, a real-time humidity value S1 of the odor in the refrigerator is obtained. When the real-time humidity value S1 is less than a preset humidity value S0, the air curtain fan is controlled to operate, and the damper assembly directs the air in the air inlet duct into the air curtain duct. A humidifier is installed in the air curtain duct to allow the air in the air curtain duct to enter the refrigerator to humidify the refrigerator.

[0103] When the door is closed and defrosting is not in progress, the exhaust mode is activated. During this process, the temperature sensor constantly monitors changes in the refrigerator compartment's internal temperature. If the temperature rises above a preset ratio, the refrigeration component activates to cool the refrigerator compartment until the temperature drops below the preset value. The refrigeration component then determines whether further deodorization is needed. This cycle repeats until the air pressure R1 is less than R0.

[0104] Figure 15 4 is another flow chart of the refrigerator control method of the present invention.

[0105] See Figure 15 , and combined with Figures 1 to 14 , this embodiment also provides a refrigerator control method:

[0106] When the refrigerator door is open and the refrigerator is in a defrosting state, a real-time concentration value R1 of the odor in the refrigerated compartment is obtained, and the real-time concentration value R1 is compared with a preset concentration value R0; when the real-time concentration value R1 is greater than the preset concentration value R0, an exhaust mode is operated;

[0107] When the refrigerator door is open and the refrigerator is not in the defrosting state, the air curtain fan is controlled to run, and the damper assembly introduces the gas in the air inlet duct into the air curtain duct to form an air curtain in the refrigerated compartment.

[0108] In this embodiment, since the evaporator temperature is high during defrosting, the exhaust mode is operated when the door is open, which can prevent the defrosting heat from entering the refrigerator compartment and causing the refrigerator compartment temperature to rise. It can also be used to remove odors in the refrigerator compartment.

[0109] It should be noted that some ingredients, such as leeks and durian, have a strong odor when used in the refrigerator, and these special ingredients often need to be kept at low temperatures. When users put leeks and durian into the refrigerator, since these ingredients have a strong odor, the odor sensor will frequently detect excessive odor in the refrigerator and set the item with the strong odor as a marked item.

[0110] In response to the above technical problems, this solution also provides a refrigerator control method:

[0111] Before confirming the door status and defrost status of the refrigerator, obtain the real-time item types of the items stored in the refrigerator; compare the real-time item types with the pre-stored item types in the refrigerator, and if the real-time item types contain the marked item types, run the exhaust mode.

[0112] The pre-stored item types in the refrigerating chamber are information on item types pre-stored in the refrigerating chamber, and the marked item types are items with a pre-marked volatile gas concentration greater than a preset value.

[0113] When a marked item is found in the refrigerator, a special exhaust mode is activated. Specifically, after detecting the presence of a marked item in the refrigerator, after a preset time period and confirmation that the refrigerator door is closed, the air curtain fan is controlled to operate, and the damper assembly directs the air in the air inlet duct into the exhaust duct.

[0114] In this embodiment, the preset duration is 3 days. That is, when the marked item type is detected to be stored in the refrigerator, the exhaust mode is activated after the preset duration. In some embodiments, the preset duration is greater than 3 days. In another embodiment, the preset duration is less than 3 days.

[0115] After the exhaust mode is run for a preset time, the exhaust mode is turned off. In this embodiment, the preset time is 30 minutes. In some embodiments, the preset time is greater than 30 minutes, and in other embodiments, the preset time is less than 30 minutes.

[0116] In the present invention, in any case, after the exhaust mode is ended, the humidity in the refrigeration chamber can be detected to determine whether humidification is needed.

[0117] It should be noted that in any case, when the exhaust mode is running, if the ratio of the real-time temperature T1 to the initial temperature T0 is greater than the preset ratio, the operation mode is turned off and the refrigerator compartment is cooled. When the real-time temperature in the refrigerator compartment is lower than the preset temperature, the exhaust mode continues to run.

[0118] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0119] In this application, unless otherwise expressly specified or limited, terms such as "assembled" and "connected" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal communication between two components; or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances. Throughout this specification, references to terms such as "some embodiments" and "exemplarily" indicate that the specific features, structures, materials, or characteristics described in connection with such embodiments or examples are included in at least one embodiment or example of this application. In this specification, the schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and integrate different embodiments or examples, as well as features from different embodiments or examples, as long as they do not conflict with each other.

[0120] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application. Therefore, any changes or modifications made in accordance with the claims and description of the present application should fall within the scope of the patent application.

Claims

1. A refrigerator control method, characterized in that: The refrigerator includes a refrigerating chamber and an air curtain assembly; the air curtain assembly includes an air inlet duct, an air curtain duct, an air exhaust duct, an air curtain fan, and an air door assembly; the air curtain fan is disposed in the air inlet duct; the air inlet duct is provided with an air inlet that passes through the air inlet duct and the refrigerating chamber; the air curtain duct is provided with an air curtain outlet at the front end of the refrigerating chamber for discharging air downwardly; The exhaust duct is provided with an exhaust port extending outside the box; the inlet of the exhaust duct and the inlet of the air curtain duct are respectively connected to the air inlet duct; the damper assembly can selectively guide the gas in the air inlet duct into the air curtain duct or the exhaust duct; The control method includes: confirming the door status and defrost status of the refrigerator, obtaining a real-time concentration value of the odor in the refrigerated compartment when the door is closed and the refrigerator is not in the defrost state, and comparing the real-time concentration value with a preset concentration value; When the real-time concentration value is greater than the preset concentration value, running the exhaust mode; Wherein, the exhaust mode includes: controlling the air curtain fan to operate, and the damper assembly introduces the gas in the air inlet duct into the exhaust duct.

2. The control method according to claim 1, characterized in that: After running the exhaust mode for a preset time, confirming the size of the real-time concentration value and the preset concentration value; when the real-time concentration value is less than or equal to the preset concentration value, closing the conduction between the air inlet duct and the exhaust duct.

3. The control method according to claim 2, characterized in that: A humidifier is also provided in the air curtain duct; after closing the connection between the air inlet duct and the exhaust duct, the real-time humidity value of the odor in the cold storage room is obtained, and when the real-time humidity value is less than the preset humidity value, the air curtain fan is controlled to operate, and the damper assembly introduces the gas in the air inlet duct into the air curtain duct.

4. The control method according to claim 1, wherein: When the refrigerator door is open and the refrigerator is in the defrosting state, the real-time concentration value of the odor in the refrigerated compartment is obtained, and the real-time concentration value is compared with the preset concentration value; when the real-time concentration value is greater than the preset concentration value, the exhaust mode is operated.

5. The control method according to claim 4, characterized in that: When the refrigerator door is open and the refrigerator is not in a defrosting state, the air curtain fan is controlled to operate, and the damper assembly introduces the gas in the air inlet duct into the air curtain duct to form an air curtain in the refrigeration chamber.

6. The control method according to any one of claims 1 to 5, characterized in that: Before running the exhaust mode, obtain the initial temperature of the refrigerator room; when running the exhaust mode, obtain the real-time temperature of the refrigerator room. When the ratio of the real-time temperature to the initial temperature is greater than the preset ratio, turn off the operation mode and cool the refrigerator room.

7. The control method according to claim 6, characterized in that: When the refrigerating chamber is refrigerating, when the real-time temperature in the refrigerating chamber is less than or equal to the preset temperature, the real-time concentration value of the odor in the refrigerating chamber is obtained and used to determine whether to operate the exhaust mode.

8. The control method according to claim 1, characterized in that: Before confirming the door status and defrost status of the refrigerator, obtaining the real-time type of items stored in the refrigerated compartment; Compare the real-time item types with the pre-stored item types in the refrigerated room. If the real-time item types contain the marked item types, run the exhaust mode. The pre-stored item types in the refrigerating chamber are information on item types pre-stored in the refrigerating chamber, and the marked item types are items with a pre-marked volatile gas concentration greater than a preset value.

9. The control method according to claim 8, characterized in that: After obtaining the type of marked items stored in the refrigerator, the exhaust mode is run after the preset time and confirmation that the door is closed.

10. The control method according to claim 8 or 9, characterized in that: After running the exhaust mode for the preset time, turn off the exhaust mode.

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