Refrigerator

Abstract

The invention provides a refrigerator. The refrigerator comprises a refrigerator body and a refrigerator door, wherein a first fresh-keeping chamber and a second fresh-keeping chamber are arranged in the refrigerator body; the gas adjusting module is used for forming fresh-keeping gas; the gas distribution module comprises a first gas distribution channel communicated with the gas adjusting module and the first fresh-keeping chamber, a second gas distribution channel communicated with the gas adjusting module and the second fresh-keeping chamber, and a gas adjusting fan used for driving the fresh-keeping gas to flow from the gas adjusting module to the first gas distribution channel and the second gas distribution channel; and the air adjusting air door is arranged at the second air distribution channel to open and close the second air distribution channel.

Description

Technical Field

[0001] This invention relates to the field of household appliance technology, and more specifically to a refrigerator. Background Technology

[0002] Modified atmosphere storage technology generally refers to the technology of extending the shelf life of food by adjusting the gas atmosphere (e.g., the proportion of gas components) of the enclosed space where the stored food is located. Its basic principle is to obtain a gas atmosphere with a different composition than air in a certain enclosed space through various adjustment methods, so as to inhibit the physiological and biochemical processes and microbial activities that cause the stored food (usually food ingredients) to spoil.

[0003] Those skilled in the art will know that air composition by volume percentage includes approximately 78% nitrogen, approximately 21% oxygen, approximately 0.939% rare gases, 0.031% carbon dioxide, and 0.03% other gases and impurities, such as ozone, nitric oxide, nitrogen dioxide, water vapor, etc.

[0004] In the field of modified atmosphere storage, preservative gases are gases composed of a single or multiple components that differ from air. When such gases are used for food storage, they can delay the spoilage or ripening of certain types of food.

[0005] To achieve modified atmosphere preservation, a common technology in refrigerators is to install a modified atmosphere unit. This unit can process specific gas components, such as increasing or decreasing the content of specific gas components, thereby obtaining a preservative atmosphere.

[0006] However, research has found that refrigerators with modified atmosphere storage currently suffer from problems such as unreasonable supply of preservation gases, low efficiency, and complex piping. Summary of the Invention

[0007] To address the aforementioned technical problems, the present invention aims to provide a refrigerator.

[0008] To achieve the above objectives, one embodiment provides a refrigerator. The refrigerator includes:

[0009] The container has a first preservation compartment and a second preservation compartment inside;

[0010] Modified atmosphere module, which is used to generate preservative gas;

[0011] The gas distribution module includes a first gas distribution channel connecting the modified atmosphere module and the first fresh-keeping compartment, a second gas distribution channel connecting the modified atmosphere module and the second fresh-keeping compartment, a modified atmosphere fan for driving the fresh-keeping gas to flow from the modified atmosphere module to the first gas distribution channel and the second gas distribution channel, and a modified atmosphere damper disposed at the second gas distribution channel to open and close the second gas distribution channel.

[0012] As an optional embodiment, the first gas distribution channel and the second gas distribution channel are arranged in parallel.

[0013] As an optional embodiment, the refrigerator further includes:

[0014] Refrigerated compartment;

[0015] A refrigeration system, including a cooler disposed within the refrigeration chamber, the cooler being used to cool the air in the refrigeration chamber;

[0016] Air supply duct, which connects to the cooling chamber; and,

[0017] A refrigeration fan is used to drive the cold air in the refrigeration chamber to flow along the air supply duct to the outer periphery of the first preservation chamber and the outer periphery of the second preservation chamber.

[0018] As an optional embodiment, the refrigerator includes:

[0019] The first food storage container body, the interior of which encloses the first food storage compartment;

[0020] The second preservation box body encloses the second preservation chamber. The second preservation box body includes a box body and an air-barrier and moisture-permeable membrane. The box body body has a through window that runs through the inside and outside. The air-barrier and moisture-permeable membrane seals and covers the through window. The air-barrier and moisture-permeable membrane is configured to allow water vapor to pass through the second preservation chamber.

[0021] As an optional embodiment, the air supply duct has a first air outlet, a second air outlet, and a humidity regulating damper for opening and closing the second air outlet;

[0022] The air supply duct is connected to the outer periphery of the second fresh-keeping compartment through the first air supply port and the second air supply port in order to reduce the temperature inside the second fresh-keeping compartment.

[0023] In this case, compared to the first air outlet, the cold air flowing from the second air outlet flows toward the air-barrier and moisture-permeable membrane.

[0024] As an optional embodiment, the refrigerator further includes a control system, the control system comprising:

[0025] A mode collector that responds to user input to collect the operating mode of the second preservation compartment;

[0026] The controller is configured to control the opening or closing of the second air outlet and the opening or closing of the second air distribution channel of the humidity damper and the gas regulation damper according to the working mode collected by the mode collector.

[0027] As an optional embodiment, the operating modes include controlled atmosphere dry zone mode, controlled atmosphere humid zone mode, and no controlled atmosphere mode;

[0028] The controller is configured as follows:

[0029] In the controlled atmosphere dry zone mode, the controlled atmosphere module and controlled atmosphere fan are turned on, the controlled atmosphere damper opens the second air distribution channel, the humidity damper opens the second air outlet, and the cooling fan is turned on.

[0030] In the controlled atmosphere and humidity zone mode, the controlled atmosphere module and controlled atmosphere fan are turned on, the controlled atmosphere damper opens the second air distribution channel, and the humidity damper closes the second air outlet.

[0031] In the non-controlled atmosphere mode, the controlled atmosphere module and controlled atmosphere fan are turned on, the controlled atmosphere damper closes the second air distribution channel, and the humidity damper closes the second air outlet.

[0032] As an optional embodiment, the refrigerator further includes a first door for opening and closing the first fresh-keeping compartment and a second door for opening and closing the second fresh-keeping compartment;

[0033] The control system further includes a first signaler and a second signaler, the first signaler being used to sense a first closing signal of the first door, and the second signaler being used to sense a second closing signal of the second door;

[0034] The controller is also configured to control the controlled atmosphere module and the controlled atmosphere fan to turn on according to the first door closing signal and the second door closing signal.

[0035] As an optional embodiment, the refrigerator further includes a common passage that connects the controlled atmosphere module and the first gas distribution channel, as well as the controlled atmosphere module and the second gas distribution channel;

[0036] The controlled atmosphere fan is located within the public passageway.

[0037] As an optional embodiment, the modified atmosphere module and the gas distribution module are configured as an integrated module; the gas distribution module includes a gas distribution box, which is fixedly assembled on the outside of the modified atmosphere module.

[0038] The common channel, the first gas distribution channel, and the second gas distribution channel are respectively formed in the gas distribution box and / or between the gas distribution box and the modified atmosphere module.

[0039] As an optional embodiment, the gas distribution module further includes a first return gas channel connecting the modified atmosphere module and the first fresh-keeping compartment, and a second return gas channel connecting the modified atmosphere module and the second fresh-keeping compartment;

[0040] As an optional embodiment, the modified atmosphere module includes a processing box and a modified atmosphere unit located within the processing box. The processing box has an outlet for the preservation gas to flow out and an inlet for the gas to flow in. The modified atmosphere unit is used to generate the preservation gas.

[0041] The first return air passage and the second return air passage are connected to the interior of the processing box via the air inlet, and the first air distribution passage and the second air distribution passage are connected to the interior of the processing box via the air outlet.

[0042] Compared with the prior art, the beneficial effects of one embodiment of the present invention are as follows: by setting a first gas distribution channel and a second gas distribution channel, and based on the setting of the controlled atmosphere fan and the controlled atmosphere damper, the fresh-keeping gas distributed to the second gas distribution channel can be adjusted under the state control of the controlled atmosphere damper. In this way, more fresh-keeping environments can be achieved to meet the different needs of the refrigerator. The distribution of fresh-keeping gas is reasonable, the pipeline is simple, and the fresh-keeping effect is excellent. Attached Figure Description

[0043] Figure 1 This is a perspective structural diagram of a refrigerator according to an embodiment of the present invention;

[0044] Figure 2 This is a three-dimensional structural diagram of a refrigerator according to an embodiment of the present invention;

[0045] Figure 3 This is a schematic block diagram of a portion of the structure of a refrigerator according to an embodiment of the present invention;

[0046] Figure 4 This is an exploded view of a modified atmosphere module and a gas distribution module according to an embodiment of the present invention;

[0047] Figure 5 This is a three-dimensional structural diagram of an embodiment of the valve distribution module of the present invention;

[0048] Figure 6 This is a three-dimensional structural diagram of a portion of the air distribution module according to an embodiment of the present invention;

[0049] Figure 7 This is a top view of a gas processing module and a gas distribution module according to an embodiment of the present invention;

[0050] Figure 8 yes Figure 7 Cross-sectional view of the middle BB line;

[0051] Figure 9 yes Figure 7 Cross-sectional view of the C-C line;

[0052] Figure 10 It is a three-dimensional structure diagram from the upper side view of a partial structure of a refrigerator according to an embodiment of the present invention;

[0053] Figure 11 It is a three-dimensional structure diagram from the lower side view of a partial structure of a refrigerator according to an embodiment of the present invention;

[0054] Figure 12 It is a side view schematic diagram of a partial structure of a refrigerator according to an embodiment of the present invention;

[0055] Figure 13 It is a structural schematic block diagram of some components according to an embodiment of the present invention. Detailed implementation manners

[0056] The following will describe the present application in detail in conjunction with the specific implementation manners shown in the accompanying drawings. However, these implementation manners do not limit the present application, and any structural, method, or functional transformation made by those of ordinary skill in the art based on these implementation manners is included within the protection scope of the present application.

[0057] In each of the drawings of the present application, for the convenience of illustration, the sizes of some structures or parts are exaggerated relative to other structures or parts. Therefore, it is only used to illustrate the basic structure of the subject matter of the present application.

[0058] Spatial relative position terms used herein, such as "upper", "above", "lower", "below", etc., are for the purpose of facilitating description of the relationship of one unit or feature relative to another unit or feature as shown in the accompanying drawings. The spatial relative position terms may be intended to include different orientations of the device in use or operation other than the orientation shown in the figures. For example, if the device in the figure is flipped, the unit described as being "below" or "beneath" other units or features will be located "above" other units or features. Therefore, the exemplary term "below" can encompass both the upper and lower orientations. The device can be oriented in other ways (rotated 90 degrees or other orientations), and the spatially related descriptive terms used herein can be interpreted accordingly.

[0059] Refer Figure 1 According to an embodiment of the present invention, a refrigerator 100 is provided.

[0060] In the illustration, the refrigerator 100 can be specifically set as a type of refrigerator, which can be a household refrigerator or can be used as a commercial refrigerator.

[0061] First, the basic structure of the refrigerator 100 of the present invention will be introduced below. Specifically, the refrigerator 100 includes a box body 10 and a door body 20.

[0062] The cabinet 10 includes a cabinet shell 11, one or more inner liners 12, and a thermal insulation layer. Among them, the cabinet shell 11 constitutes part of the appearance of the refrigerator 100. The one or more inner liners 12 are sleeved inside the cabinet shell 11 and are spaced apart from the cabinet shell 11 to construct a space between the cabinet shell 11 and the one or more inner liners 12. The thermal insulation layer is filled in the space. Specifically, the thermal insulation layer may include a thermal insulation board and foaming material.

[0063] The one or more inner liners 12 enclose several compartments. For example, according to the set value of the storage temperature in the compartment, it may include a freezer compartment 102, a refrigerator compartment 101, a variable temperature compartment, etc.

[0064] The number of door bodies 20 is set to one or more. Each door body 20 is movably connected to the front side of the cabinet 10 and is used to open and close each of the compartments. For example, when the door body 20 opens a compartment, the user can take and place items in the compartment. When the door body 20 closes a compartment, the compartment is basically in a closed state, and the user cannot take and place items. Even the low-temperature gas in the compartment cannot enter or exit the compartment through the joint between the door body 20 and the cabinet 10, thereby achieving low-temperature storage.

[0065] In this application, the several compartments include at least two fresh-keeping compartments 50. For example, the at least two fresh-keeping compartments 50 may include a first fresh-keeping compartment 50A and a second fresh-keeping compartment 50B.

[0066] Refer Figure 2 and Figure 3 , the refrigerator 100 further includes an air conditioning module 60 and a gas distribution module 70.

[0067] The air conditioning module 60 is configured to form a fresh-keeping gas for adjusting the content of a specific gas. The fresh-keeping gas can be supplied to each fresh-keeping compartment 50 to adjust the content of the specific gas in these fresh-keeping compartments 50.

[0068] These specific gases may be, for example, any one of oxygen, nitrogen, carbon dioxide, ethylene, etc.

[0069] After the fresh-keeping gas is supplied to a fresh-keeping compartment 50, the volume ratio of the specific gas in the fresh-keeping compartment 50 changes relative to the composition of air. After the volume ratio of the specific gas reaches the target range, the fresh-keeping effect of the food stored in the fresh-keeping compartment 50 can be improved.

[0070] Among them, the composition of air usually contains: the volume fraction of nitrogen is about 78%, the volume fraction of oxygen is about 21%, the volume fraction of rare gases (helium, neon, argon, krypton, xenon, radon) is about 0.934%, the volume fraction of carbon dioxide is about 0.04%, and the volume fraction of other substances (such as water vapor, impurities, etc.) is about 0.02%.

[0071] The air distribution module 70 includes at least two air distribution channels, an air conditioning fan 73, and an air conditioning damper 75.

[0072] The at least two air distribution channels may include a first air distribution channel 721A and a second air distribution channel 722B. Among them, the first air distribution channel 721A is connected to the air conditioning module 60 and the first fresh-keeping compartment 50A, so that the fresh-keeping gas flows from the air conditioning module 60 to the first fresh-keeping compartment 50A; the second air distribution channel 722B is connected to the air conditioning module 60 and the second fresh-keeping compartment 50B, so that the fresh-keeping gas flows from the air conditioning module 60 to the second fresh-keeping compartment 50B.

[0073] The first air distribution channel 721A and the second air distribution channel 722B are arranged in parallel. In this way, it is more convenient to effectively distribute the fresh-keeping gas to the first fresh-keeping compartment 50A and the second fresh-keeping compartment 50B.

[0074] The air conditioning fan 73 is used to drive the fresh-keeping gas to flow from the air conditioning module 60 to the first air distribution channel 721A and the second air distribution channel 722B.

[0075] The air conditioning damper 75 is arranged at the second air distribution channel 722B and is used to open or close the second air distribution channel 722B.

[0076] In this way, by setting the first air distribution channel 721A and the second air distribution channel 722B, and based on the settings of the air conditioning fan 73 and the air conditioning damper 75, the fresh-keeping gas distributed to the second air distribution channel 722B can be adjusted under the state control of the air conditioning damper 75. In this way, it can meet the different needs of the refrigerator 100, realize more fresh-keeping environments, and have excellent fresh-keeping effects.

[0077] Refer Figure 3 , in one embodiment, the refrigerator 100 further includes a common channel 72.

[0078] The common channel 72 is connected between the air conditioning module 60 and the first air distribution channel 721A, and the common channel 72 is also connected between the air conditioning module 60 and the second air distribution channel 722B, so that the fresh-keeping gas at the air conditioning module 60 passes through the common channel 72, and a part of it enters the first air distribution channel 721A and another part enters the second air distribution channel 722B.

[0079] The air conditioning fan 73 is arranged in the common channel 72. In this way, through one air conditioning fan 73, the fresh-keeping air conditioning of the two fresh-keeping compartments 50 can be realized, with high efficiency and low cost.

[0080] In one embodiment, the controlled atmosphere fan 73 can be configured with adjustable speed. For example, the controller 92 described later can control the controlled atmosphere fan 73 to turn on or off, and can also control the controlled atmosphere fan 73 to operate at different speeds. In this way, multiple operating modes of the refrigerator 100 can be realized to meet various combinations of needs in the first fresh-keeping compartment 50A and the second fresh-keeping compartment 50B, and the stability and effectiveness of the fresh-keeping atmosphere in the first fresh-keeping compartment 50A and the second fresh-keeping compartment 50B can be improved.

[0081] In addition, the controlled atmosphere damper 75 can be controllably closed to close the second gas distribution channel 722B. That is to say, at this time, the preservation gas driven by the controlled atmosphere fan 73 can only enter the first preservation compartment 50A along the first gas distribution channel 721A, but cannot enter the second preservation compartment 50B.

[0082] Conversely, the controlled atmosphere damper 75 can be opened controllably in the second gas distribution channel 722B. That is to say, at this time, the preservation gas driven by the controlled atmosphere fan 73 can enter the first preservation chamber 50A along the first gas distribution channel 721A and the second preservation chamber 50B along the second gas distribution channel 722B.

[0083] In another embodiment, the modified atmosphere damper 75 can also be configured to have an adjustable opening. That is, for example, under the control of the controller 92, the modified atmosphere damper 75 can adjust the opening of the second gas distribution channel 722B, thereby adjusting the respective proportions of the fresh-keeping gas entering the first gas distribution channel 721A and the second gas distribution channel 722B.

[0084] For example, the controlled atmosphere damper 75 can open the second air distribution passage 722B at different rotation angles or at different moving distances (so that the opening area of ​​the second air distribution passage 722B is different).

[0085] Continue to participate Figure 3 and combined Figure 4 The modified atmosphere module 60 includes a processing box 61 and a modified atmosphere unit 62 located within the processing box 61.

[0086] The modified atmosphere unit 62 is used to generate a preservative gas for adjusting the content of specific gases.

[0087] For example, in one embodiment, the modified atmosphere unit 62 is configured to prepare a preservative gas via an electrochemical reaction. However, this application is not limited thereto.

[0088] Specifically, the controlled atmosphere unit 62 includes a frame body 623, at least one anode 621, and at least one cathode 622.

[0089] The cathode 622, anode 621, and frame 623 together enclose an inner cavity 620 for containing electrolyte. For example, the frame 623 includes two opposing windows. The cathode 622 is sealed over one of the windows and is fixedly connected to the frame 623, with the first side of the cathode 622 facing the interior of the frame 623 to facilitate contact with the electrolyte inside the frame 623. The second side of the cathode 622 is exposed outside the controlled atmosphere unit 62 from the window, thereby contacting the gas outside the controlled atmosphere unit 62. The anode 621 is sealed over the other window and is fixedly connected to the frame 623. Thus, the cathode 622, anode 621, and frame 623 together enclose an inner cavity 620 for containing electrolyte.

[0090] Alternatively, the cathode 622 and the frame body 623 may together enclose an inner cavity 620 for containing the electrolyte. For example, the frame body 623 may include one or more windows arranged opposite each other, each window having a cathode 622 disposed thereat. These cathodes 622 and the frame body 623 together enclose an inner cavity 620 for containing the electrolyte; correspondingly, the anode 621 is located inside the inner cavity 620.

[0091] The anode 621 is controllably connected to the positive terminal of the power supply, and the cathode 622 is controllably connected to the negative terminal of the power supply.

[0092] Thus, when the modified atmosphere module 60 is running, the positive terminal of the power supply is connected to the anode 621 and the negative terminal of the power supply is connected to the cathode 622, that is, the power supply supplies power to the modified atmosphere unit 62; and when the modified atmosphere module 60 stops running, the positive terminal of the power supply is connected to the anode 621 and the negative terminal of the power supply is connected to the cathode 622, that is, the power supply stops supplying power to the modified atmosphere unit 62.

[0093] The power source can be a power source installed in the refrigerator 100, such as a battery pack, or it can be an external power source for the refrigerator 100.

[0094] The first side of the cathode 622 is exposed in the inner cavity 620, and the second side is exposed in the outside of the modified atmosphere unit 62 and inside the processing box 61.

[0095] When the controlled atmosphere module 60 is running, i.e., when it is energized, the cathode 622 is used to consume oxygen in the external air of the controlled atmosphere unit 62 through an electrochemical reaction. Specifically, oxygen undergoes a reduction reaction at the cathode 622, with the reaction formula being O2 + 2H2O + 4e. - →4OH - In this way, a preservative gas in an oxygen-deficient state can be formed on the outside of the modified atmosphere unit 62.

[0096] One or both sides of the anode 621 are exposed in the inner cavity 620. The anode 621 is used to generate oxygen in the inner cavity 620 through an electrochemical reaction. Specifically, OH- in the electrolyte...- An oxidation reaction can occur at the anode 621 to generate oxygen, with the reaction formula 4OH. - →O2 + 2H2O + 4e - This creates an oxygen-rich preservative gas in the inner cavity 620.

[0097] The processing box 61 is provided with an air outlet 611 and a second air outlet 613 (refer to the label). Figure 9 ).

[0098] The first gas distribution channel 721A and the second gas distribution channel 722B are connected to the interior of the processing box 61 and the exterior of the modified atmosphere unit 62 via the gas outlet 611. In this way, the oxygen-deficient preservation gas can flow from the processing box 61 into the first gas distribution channel 721A and the second gas distribution channel 722B. Correspondingly, the oxygen-deficient preservation gas flowing out of the gas outlet 611 flows to the first preservation chamber 50A and the second preservation chamber 50B, so that the first preservation chamber 50A and the second preservation chamber 50B can have an oxygen-deficient preservation function.

[0099] The second air outlet 613 is connected to the inner cavity 620 of the controlled atmosphere unit 62 through a pipe, so that the oxygen-rich preservation gas can flow out of the treatment box 61 and be further connected to the third preservation compartment 50C of the refrigerator 100 through a pipe. Thus, the oxygen-rich preservation gas flowing out of the second air outlet 613 flows to the third preservation compartment 50C, so that the third preservation compartment 50C has an oxygen-rich preservation function.

[0100] Of course, in a variation embodiment, the first preservation chamber 50A and the second preservation chamber 50B may have an oxygen-enriched preservation function. Correspondingly, the first gas distribution channel 721A and the second gas distribution channel 722B may also be changed to be connected to the second gas outlet 613, so that the oxygen-enriched preservation gas flowing out of the second gas outlet 613 flows to the first preservation chamber 50A and the second preservation chamber 50B.

[0101] Next, the gas distribution module 70 also includes a first return gas channel 741A and a second return gas channel 742B.

[0102] The first return air channel 741A connects the modified atmosphere module 60 and the first fresh-keeping compartment 50A, so that gas can flow from the first fresh-keeping compartment 50A to the modified atmosphere module 60. In this way, combined with the first air distribution channel 721A, a circulating airflow is formed between the modified atmosphere module 60 and the first fresh-keeping compartment 50A.

[0103] Similarly, the second air return channel 42B connects the gas conditioning module 60 and the second fresh-keeping compartment 50B to allow gas to flow from the second fresh-keeping compartment 50B to the gas conditioning module 60. Thus, in combination with the previous second gas distribution channel 722B, a circulating air flow is formed between the gas conditioning module 60 and the second fresh-keeping compartment 50B.

[0104] Correspondingly, the processing box 61 is further provided with an air inlet 612.

[0105] The first air return channel 741A and the second air return channel 722B are connected to the inside of the processing box 61 and the outside of the gas conditioning unit 62 via the air inlet 612. In this way, the gas in the first air return channel 741A and the second air return channel 722B can be returned to the processing box 61 to facilitate the gas conditioning unit 62 to regulate the content of specific gases (such as reducing the oxygen content).

[0106] It can be understood that in the embodiment where the first gas distribution channel 721A and the second gas distribution channel 722B are connected to the second air outlet 613, for example, when the first fresh-keeping compartment 50A and the second fresh-keeping compartment 50B have an oxygen-rich fresh-keeping function, there is no need to provide the first air return channel 741A and the second air return channel 742B.

[0107] Refer Figures 4 to 9 , in one embodiment, the gas conditioning module 60 and the gas distribution module 70 are set as an integrated module.

[0108] Structurally speaking, the gas distribution module 70 further includes a gas distribution box 71, and the gas distribution box 71 is disposed on the top wall of the processing box 61.

[0109] The common channel 72, the first gas distribution channel 721A, the second gas distribution channel 722B, the first air return channel 741A and the second air return channel 742B are respectively at least partially formed in the integrated module.

[0110] As shown in the figure, in one embodiment, the common channel 72, the first gas distribution channel 721A, the second gas distribution channel 722B, the first air return channel 741A and the second air return channel 742B can be respectively at least partially formed in the gas distribution box 71. Or in a variant embodiment, the common channel 72, the first gas distribution channel 721A, the second gas distribution channel 722B, the first air return channel 741A and the second air return channel 742B can also be formed between the processing box 61 and the gas distribution box 71.

[0111] The gas distribution box 71 has an inlet 710 and an outlet 740.

[0112] The inlet 710 is connected to the outlet 611 of the modified atmosphere module 60, for example, they are directly opposite each other in the figure. The common channel 72 is connected to the inlet 710. The modified atmosphere fan 73 is set in the air distribution box 71, and its air intake faces the inlet 710 and its exhaust port 731 faces the first air distribution channel 721A and the second air distribution channel 722B.

[0113] In this way, by setting up the gas distribution box 71 to arrange at least part of the first gas distribution channel 721A and the second gas distribution channel 722B, and to accommodate the fan 73, the gas path layout between the controlled atmosphere module 60 and the two fresh-keeping compartments 50 is realized by a single gas distribution module 70. The structure is simple, which is conducive to the planning of the gas path and the rational distribution of the fresh-keeping gas. The overall structure and fresh-keeping effect of the refrigerator 100 are optimized to the greatest extent.

[0114] Similarly, the outlet 740 is connected to the air inlet 612 of the modified atmosphere module 60, for example, they are directly opposite each other in the figure. The first return air channel 741A and the second return air channel 742B are both connected to the outlet 740.

[0115] Next, see Figure 10 and Figure 11 The first air distribution channel 721A has a first air distribution port 721 formed on the integrated module; the first air distribution port 721 is connected to the first air supply hole 51A of the first fresh-keeping compartment 50A.

[0116] Correspondingly, the first return air channel 741A has a first return air port 741 formed on the integrated module; the first return air port 741 is connected to the first return air hole 52A of the first preservation chamber 50A.

[0117] Similarly, the second air distribution channel 722B has a second air distribution port 722 formed on the integrated module, which is connected to the second air supply port 51B of the second preservation compartment 50B.

[0118] Correspondingly, the second return air channel 722B has a second return air port 742 formed on the integrated module, and the second return air port 742 is connected to the second return air hole 52B of the second preservation compartment 50B.

[0119] Thus, when the controlled atmosphere fan 73 is running, the gas in the first fresh-keeping compartment 50A enters the gas distribution box 71 through the first return air port 741, then flows out through the outlet 740, and then flows to the controlled atmosphere module 60. The controlled atmosphere module 60 processes the gas into fresh-keeping gas (for example, by adjusting the volume ratio of a specific gas), and then flows into the gas distribution box 71 through the inlet 710, then leaves the gas distribution box 71 through the first gas distribution port 721, and finally enters the first fresh-keeping compartment 50A.

[0120] When the fan 73 is running, if the controlled atmosphere damper 75 opens the second air distribution channel 722B, under the drive of the fan 73, the gas in the second fresh-keeping compartment 50B enters the air distribution box 71 through the second return air port 742, then flows out through the outlet 740, and then flows to the controlled atmosphere module 60. The controlled atmosphere module 60 processes it into fresh-keeping gas (for example, adjusting the volume ratio of a specific gas, or reducing the oxygen content), and then flows into the air distribution box 71 through the inlet 710, then leaves the air distribution box 71 through the second air distribution port 722, and finally enters the second fresh-keeping compartment 50B.

[0121] In one embodiment, one of the first fresh-keeping compartment 50A and the second fresh-keeping compartment 50B is located above the integrated module, while the other is located to the side of the integrated module. For example, optionally, as shown in the figure, the second fresh-keeping compartment 50B is located below the first fresh-keeping compartment 50A, and the integrated module consisting of the gas distribution module 70 and the modified atmosphere module 60 is disposed to the side of the second fresh-keeping compartment 50B.

[0122] Thus, the positional relationship between the two preservation compartments 50 and the integrated module makes the connection structure between the integrated module and the two preservation compartments 50 simpler, reduces the use of pipelines, makes assembly more convenient, and makes the layout more reasonable.

[0123] For example, the first air distribution port 721 is connected vertically to the first air supply port 51A of the first fresh-keeping compartment 50A; the first air return port 741 is connected vertically to the first air return port 52A of the first fresh-keeping compartment 50A.

[0124] Next, see Figures 11 to 12 In this application, the refrigerator 100 includes a first food storage box 54A and a first door 53A.

[0125] The first food storage container 54A encloses a first food storage compartment 50A. A first door 53A is located in front of the first food storage container 54A and is used to open and close the first food storage compartment 50A. Of course, in a variant embodiment, the first food storage container 54A may also have an opening at the top, and the first door 53A may be located above the first food storage container 54A.

[0126] Similarly, the second food storage container 54B encloses a second food storage compartment 50B, and a second door 53B is located in front of the second food storage container 54B for opening and closing the second food storage compartment 50B. Of course, in a variant embodiment, the second food storage container 54B may also have an opening at the top, and the second door 53B may be located above the second food storage container 54B.

[0127] The second food storage container 54B includes the container body and the air-barrier and moisture-permeable membrane 55B.

[0128] For example, the box body has a through window that runs through the inside and outside, and a gas-barrier and moisture-permeable membrane 55B seals and covers the through window. The gas-barrier and moisture-permeable membrane 55B is configured to allow water vapor to pass through the second preservation compartment 50B.

[0129] The gas-barrier and moisture-permeable membrane 55B allows water vapor to pass through, but does not allow gas exchange between the second preservation compartment 50B and the outside. Its specific structure and materials are implemented using techniques known in the art and will not be described in detail.

[0130] Thus, by setting up an air-barrier and moisture-permeable membrane 55B, the second fresh-keeping compartment 50B can have multiple fresh-keeping environments, achieving more diversified fresh-keeping functions. For example, the second fresh-keeping compartment 50 can achieve adjustable humidity.

[0131] In one embodiment, the window is located at the lower rear part of the second preservation compartment 50, but it is not limited thereto.

[0132] Furthermore, the refrigerator 100 also includes a refrigeration system 30.

[0133] The refrigeration system 30 includes a cooler 32 for providing cooling capacity to the refrigerator 100 in order to maintain a low-temperature storage environment in each of the compartments.

[0134] The specific structure of the refrigeration system 30 can be implemented in various ways in the art. For example, in one embodiment, the refrigeration system 30 can be configured as a thermoelectric refrigeration system, and its cooler 32 can be configured as a semiconductor refrigeration chip; in another embodiment, the refrigeration system 30 can be configured as a vapor compression refrigeration system, and its cooler 32 can be configured as an evaporator. In addition, it also includes a compressor, a condenser, a throttling element, etc. The compressor, condenser, throttling element and evaporator are connected in series to form a circulation pipeline. Under the action of the compressor, the refrigerant flows in the circulation pipeline and absorbs and releases heat based on phase change, and then exchanges heat with the air at the evaporator to produce the cold air required by the room.

[0135] In this invention, the housing 10 is also provided with a refrigeration chamber and a cold air duct.

[0136] The refrigeration chamber is equipped with the cooler 32. As mentioned above, when the refrigeration system 30 is started, the cooler 32 can exchange heat with the air in the refrigeration chamber, so that the air in the refrigeration chamber becomes cold air.

[0137] The cold air duct connects the refrigeration chamber and some or all of the compartments, thereby allowing cold air to circulate between the refrigeration chamber and the compartments, thus providing cold air to the compartments to maintain the low temperature environment of the compartments.

[0138] Specifically, for example, the cold air duct may include a supply air duct 15 and a return air duct. The supply air duct 15 connects the refrigeration chamber and the compartment, so that cold air flows from the refrigeration chamber to the compartment along the supply air duct 15; the return air duct connects the refrigeration chamber and the compartment, so that cold air flows from the compartment back to the refrigeration chamber along the return air duct.

[0139] The air supply duct 15 has a first air supply outlet 151, a second air supply outlet 152, and a humidity regulating damper 33.

[0140] The air supply duct 15 leads to the outer periphery of the second fresh-keeping compartment 50B through the first air supply port 151 and the second air supply port 152. That is, the cold air flowing out of the first air supply port 151 and the second air supply port 152 will flow along the outer surface of the second fresh-keeping box body 54B on the outer periphery of the second fresh-keeping compartment 50B to reduce the temperature inside the second fresh-keeping compartment 50B.

[0141] In this configuration, the cold air flowing from the second air outlet 152 is directed towards the air-barrier and moisture-permeable membrane 55B, compared to the first air outlet 151. In other words, the second air outlet 152 is closer to the air-barrier and moisture-permeable membrane 55B than the first air outlet 151. For example, in the diagram, the second air outlet 152 faces the air-barrier and moisture-permeable membrane 55B, but this is not the only case.

[0142] The humidity damper 33 can be used to open and close the second air outlet 152. In this way, the humidity control in the second preservation chamber 50B can be further realized through the setting of the second air outlet 152 and the humidity damper 33.

[0143] For example, when the humidity damper 33 opens the second air outlet 152, if the cooling fan 31 is turned on, the cold air blown out from the second air outlet 152 will accelerate the airflow speed on the surface of the air-barrier and moisture-permeable membrane 55B, thereby promoting the water vapor in the second fresh-keeping compartment 50B to pass through the air-barrier and moisture-permeable membrane 55B more quickly, thereby reducing the humidity in the second fresh-keeping compartment 50B and achieving dry zone preservation.

[0144] Furthermore, by controlling the duration for which the humidity damper 33 opens the second air outlet 152, or by adding the duration for which the cooling fan 31 is turned on, it is possible to further achieve precise control over the humidity range in the second fresh-keeping compartment 50B. For example, the longer the humidity damper 33 opens the second air outlet 152 and the longer the cooling fan 31 is turned on, the lower the humidity in the second fresh-keeping compartment 50B needs to be.

[0145] For example, when the humidity damper 33 closes the second air outlet 152, the cold air blown out from the second air outlet 152 will accelerate the airflow speed on the surface of the air-barrier and moisture-permeable membrane 55B, thereby promoting the water vapor in the second fresh-keeping compartment 50B to pass through the air-barrier and moisture-permeable membrane 55B more quickly, thereby reducing the humidity in the second fresh-keeping compartment 50B and achieving wet zone preservation.

[0146] In one embodiment, the air supply duct 15 further has a third air supply port 153.

[0147] The air supply duct 15 leads to the outer periphery of the first fresh-keeping compartment 50A through the third air supply port 153. That is, the cold air flowing out of the third air supply port 153 will flow along the outer surface of the first fresh-keeping box body 54A on the outer periphery of the first fresh-keeping compartment 50A to reduce the temperature inside the first fresh-keeping compartment 50A.

[0148] In this embodiment, the first fresh-keeping compartment 50A can be set as a fresh-keeping wet area without structures such as an air-blocking and moisture-permeable film that can reduce humidity. Of course, in a variant embodiment, it can also be set with a series of structures that can achieve humidity control, the same as those of the second fresh-keeping compartment 50B.

[0149] Refer Figure 13 , the control system 90 includes a first signaler 911 and a second signaler 912.

[0150] The first signaler 911 is used to sense the opening and closing of the first door body 53A. For example, when the first door body 53A opens the first fresh-keeping compartment 50A, the first signaler 911 senses it and generates a first door-opening signal; when the first door body 53A closes the first fresh-keeping compartment 50A, the first signaler 911 senses it and generates a first door-closing signal.

[0151] Similarly, the second signaler 912 is used to sense the opening and closing of the second door body 53B. For example, when the second door body 53B opens the second fresh-keeping compartment 50B, the second signaler 912 senses it and generates a second door-opening signal; when the second door body 53B closes the second fresh-keeping compartment 50B, the second signaler 912 senses it and generates a second door-closing signal.

[0152] The controller 92 is configured to: be electrically connected to the first signaler 911, the second signaler 912, the controlled atmosphere blower 73, the controlled atmosphere air damper 75, and the controlled atmosphere module 60, and be used to control the operation of the controlled atmosphere blower 73 and the controlled atmosphere module 60 according to the signals sensed by the first signaler 911 and the second signaler 912.

[0153] Furthermore, the control system 90 further includes a mode collector 94.

[0154] The mode collector 94 responds to user input to collect the working mode of the second fresh-keeping compartment 50B. That is, the user can select and input the working mode of the second fresh-keeping compartment 50B.

[0155] The mode collector 94 can specifically be a mechanical knob, a keyboard, a touch writing screen, etc. that is electrically connected to the controller 92, but is not limited thereto.

[0156] The controller 92 is configured to control the humidity damper 33 to open or close the second air outlet 152 and control the air conditioning damper 75 to open or close the second air distribution channel 922B according to the operating mode.

[0157] In one embodiment, the operating modes include a controlled atmosphere dry zone mode, a controlled atmosphere humid zone mode, and a no-controlled atmosphere mode.

[0158] The controller is configured to: in the controlled atmosphere dry zone mode, control the controlled atmosphere module 60 and the controlled atmosphere fan 73 to turn on, the controlled atmosphere damper 75 to open the second air distribution channel 722B, and the humidity damper 33 to open the second air outlet 152, and the cooling fan 31 to turn on.

[0159] In the controlled atmosphere and humidity zone mode, the controlled atmosphere module 60 and the controlled atmosphere fan 73 are turned on, the controlled atmosphere damper 75 opens the second air distribution channel 722B, and the humidity damper 33 closes the second air outlet 152.

[0160] In the non-controlled atmosphere mode, the controlled atmosphere module 60 and the controlled atmosphere fan 73 are turned on, the controlled atmosphere damper 75 closes the second air distribution channel 722B, and the humidity damper 33 closes the second air outlet 152.

[0161] In another embodiment, after the refrigerator 100 is powered on, in the non-controlled atmosphere mode, the controller 92 controls the controlled atmosphere module 60 and the controlled atmosphere fan 73 to turn on according to the first door closing signal. That is, as long as the first door 53A is closed, the controlled atmosphere module 60 and the controlled atmosphere fan 73 can be turned on simultaneously.

[0162] Furthermore, in the non-controlled atmosphere mode, after controlling the controlled atmosphere module 60 and the controlled atmosphere fan 73 to turn on, the controller 92 also controls the controlled atmosphere module 60 to close and the controlled atmosphere fan 73 to turn on according to the first door opening signal. That is to say, when the first door 53A is opened, the controlled atmosphere fan 73 blows the gas in the controlled atmosphere module 60 into the first preservation compartment 50A, thereby blowing away the water vapor that has accumulated in the controlled atmosphere module 60 for a long time, and avoiding excessive humidity that will cause wear and tear on the lifespan of the controlled atmosphere module 60.

[0163] In particular, in the non-controlled atmosphere mode, when the controlled atmosphere module 60 is closed and the controlled atmosphere fan 73 is turned on, the speed of the controlled atmosphere fan 73 can be controlled to be greater (i.e., greater than the speed when the controlled atmosphere module 60 and the controlled atmosphere fan 73 are turned on at the same time), so that dehumidification can be accelerated by taking advantage of the short time when the first door 53A is opened.

[0164] Conversely, after the refrigerator 100 is powered on, in the controlled atmosphere dry zone mode and the controlled atmosphere humid zone mode, the controller 92 controls the controlled atmosphere module 60 and the controlled atmosphere fan 73 to turn on according to the first door closing signal and the second door closing signal. That is to say, the controlled atmosphere module 60 and the controlled atmosphere fan 73 will only be turned on simultaneously when both the first door 53A and the second door 53B are closed.

[0165] In the controlled atmosphere dry zone mode and the controlled atmosphere humid zone mode, after controlling the controlled atmosphere module 60 and the controlled atmosphere fan 73 to turn on, the controller 92 also controls the controlled atmosphere module 60 to turn off, while the controlled atmosphere fan 73 turns on and its speed increases, and the controlled atmosphere damper 75 closes according to the first door opening signal.

[0166] Of course, the control of various structures by the controller 92 described above are only some examples that can be achieved in this application. Based on the settings of various fans and dampers in this application, the controller 92 can also implement more complex control logic, which will not be elaborated here.

[0167] Additionally, controller 92 may include or be associated with one or more storage elements or non-transitory computer-readable storage media, such as RAM, ROM, EEPROM, EPROM, flash memory devices, magnetic disks, or other suitable storage devices (including combinations thereof). These storage devices may be components separate from the processor or may be contained on a board within the processor. Furthermore, these storage devices may store information and / or data accessible by one or more processors, including instructions executable by the one or more processors. It should be understood that the instructions may be software written in any suitable programming language or may be implemented in hardware. Alternatively or additionally, the instructions may be executed logically and / or virtually using separate threads on one or more processors.

[0168] For example, controller 92 may be operable to execute programming instructions or microcontroller code associated with the operating cycle of refrigerator 100. In this respect, the instructions may be software or any set of instructions that, when executed by a processing device, cause the processing device to perform operations such as running one or more software applications, displaying a user interface, receiving user input, processing user input, etc. Furthermore, it should be noted that controller 92 disclosed herein is capable of and can be operated to perform any method, method step, or part of a method disclosed herein. For example, in some embodiments, the methods disclosed herein may be embodied in programming instructions stored in memory and executed by controller 92.

[0169] The first signal device 911 and the second signal device 912 can be configured as any one of pressure sensors, infrared sensors, etc., or they can be integrated with the controller 92 as a single signal unit.

[0170] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0171] The detailed descriptions listed above are merely specific descriptions of feasible implementations of the present invention and are not intended to limit the scope of protection of the present invention. All equivalent implementations or modifications made without departing from the spirit of the present invention should be included within the scope of protection of the present invention.

Claims

1. A refrigerator, characterized in that, include: The container has a first preservation compartment and a second preservation compartment inside; Modified atmosphere module, which is used to generate preservative gas; The gas distribution module includes a first gas distribution channel connecting the modified atmosphere module and the first fresh-keeping compartment, a second gas distribution channel connecting the modified atmosphere module and the second fresh-keeping compartment, a modified atmosphere fan for driving the fresh-keeping gas to flow from the modified atmosphere module to the first gas distribution channel and the second gas distribution channel, and a modified atmosphere damper disposed at the second gas distribution channel to open and close the second gas distribution channel.

2. The refrigerator according to claim 1, characterized in that, The first gas distribution channel and the second gas distribution channel are connected in parallel.

3. The refrigerator according to claim 1, characterized in that, The refrigerator also includes: Refrigerated compartment; A refrigeration system, including a cooler disposed within the refrigeration chamber, the cooler being used to cool the air in the refrigeration chamber; Air supply duct, which connects to the cooling chamber; and, A refrigeration fan is used to drive the cold air in the refrigeration chamber to flow along the air supply duct to the outer periphery of the first preservation chamber and the outer periphery of the second preservation chamber.

4. The refrigerator according to claim 3, characterized in that, The refrigerator includes: The first food storage container body, the interior of which encloses the first food storage compartment; The second preservation box body encloses the second preservation chamber. The second preservation box body includes a box body and an air-barrier and moisture-permeable membrane. The box body body has a through window that runs through the inside and outside. The air-barrier and moisture-permeable membrane seals and covers the through window. The air-barrier and moisture-permeable membrane is configured to allow water vapor to pass through the second preservation chamber.

5. The refrigerator according to claim 4, characterized in that, The air supply duct has a first air outlet, a second air outlet, and a humidity regulating damper for opening and closing the second air outlet; The air supply duct is connected to the outer periphery of the second fresh-keeping compartment through the first air supply port and the second air supply port in order to reduce the temperature inside the second fresh-keeping compartment. In this case, compared to the first air outlet, the cold air flowing from the second air outlet flows toward the air-barrier and moisture-permeable membrane.

6. The refrigerator according to claim 5, characterized in that, The refrigerator also includes a control system, the control system comprising: A mode collector that responds to user input to collect the operating mode of the second preservation compartment; The controller is configured to control the opening or closing of the second air outlet and the opening or closing of the second air distribution channel of the humidity damper and the gas regulation damper according to the working mode collected by the mode collector.

7. The refrigerator according to claim 6, characterized in that, The operating modes include controlled atmosphere dry zone mode, controlled atmosphere humid zone mode, and no controlled atmosphere mode; The controller is configured as follows: In the controlled atmosphere dry zone mode, the controlled atmosphere module and controlled atmosphere fan are turned on, the controlled atmosphere damper opens the second air distribution channel, the humidity damper opens the second air outlet, and the cooling fan is turned on. In the controlled atmosphere and humidity zone mode, the controlled atmosphere module and controlled atmosphere fan are turned on, the controlled atmosphere damper opens the second air distribution channel, and the humidity damper closes the second air outlet. In the non-controlled atmosphere mode, the controlled atmosphere module and controlled atmosphere fan are turned on, the controlled atmosphere damper closes the second air distribution channel, and the humidity damper closes the second air outlet.

8. The refrigerator according to claim 6, characterized in that, The refrigerator also includes a first door for opening and closing the first fresh-keeping compartment and a second door for opening and closing the second fresh-keeping compartment; The control system further includes a first signaler and a second signaler, the first signaler being used to sense a first closing signal of the first door, and the second signaler being used to sense a second closing signal of the second door; The controller is also configured to control the controlled atmosphere module and the controlled atmosphere fan to turn on according to the first door closing signal and the second door closing signal.

9. The refrigerator according to claim 1, characterized in that, The refrigerator also includes a common passage that connects the controlled atmosphere module and the first gas distribution channel, as well as the controlled atmosphere module and the second gas distribution channel. The controlled atmosphere fan is located within the public passageway.

10. The refrigerator according to claim 9, characterized in that, The modified atmosphere module and the gas distribution module are configured as an integrated module; the gas distribution module includes a gas distribution box, which is fixedly assembled on the outside of the modified atmosphere module. The common channel, the first gas distribution channel, and the second gas distribution channel are respectively formed in the gas distribution box and / or between the gas distribution box and the modified atmosphere module.

11. The refrigerator according to claim 1, characterized in that, The gas distribution module further includes a first return gas channel connecting the modified atmosphere module and the first fresh-keeping compartment, and a second return gas channel connecting the modified atmosphere module and the second fresh-keeping compartment.

12. The refrigerator according to claim 11, characterized in that, The modified atmosphere module includes a processing box and a modified atmosphere unit located inside the processing box. The processing box has an outlet for the preservation gas to flow out and an inlet for the gas to flow in. The modified atmosphere unit is used to generate the preservation gas. The first return air passage and the second return air passage are connected to the interior of the processing box via the air inlet, and the first air distribution passage and the second air distribution passage are connected to the interior of the processing box via the air outlet.

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