Refrigerator control method and refrigerator

Abstract

The present invention provides a control method for a refrigerator and a refrigerator. The control method comprises: when the door body is opened, judging whether the atmosphere-controlled membrane component of the atmosphere-controlled fresh-keeping device is working; if the atmosphere-controlled membrane component of the atmosphere-controlled fresh-keeping device is in the working state, suspending the atmosphere-controlled membrane component of the atmosphere-controlled fresh-keeping device; when the door body is closed, detecting whether the atmosphere-controlled membrane component of the atmosphere-controlled fresh-keeping device is in the suspended working state; if the atmosphere-controlled membrane component of the atmosphere-controlled fresh-keeping device is in the suspended working state, continuing the operation of the atmosphere-controlled membrane component of the atmosphere-controlled fresh-keeping device; if the atmosphere-controlled membrane component of the atmosphere-controlled fresh-keeping device is in the stopped state, detecting whether the atmosphere-controlled fresh-keeping device has been opened; if the atmosphere-controlled fresh-keeping device has been opened, after the door body is closed for a first preset time, when the compressor of the refrigerator is stopped, the atmosphere-controlled membrane component of the atmosphere-controlled fresh-keeping device is in the working state; otherwise, after the door body is closed, the atmosphere-controlled membrane component of the atmosphere-controlled fresh-keeping device is in the working state at every second preset time interval.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigeration and freezing storage, and in particular to a control method of a refrigerator and a refrigerator. Background Art

[0002] A refrigerator is a refrigeration device that maintains a constant low temperature. It is also a civilian product that keeps food or other items in a constant low temperature cold state. With the improvement of people's living standards, the preservation of food has reached a new level, and the preservation of food has become more urgent. At present, most refrigerators on the market only have basic food refrigeration and freezing storage functions, and there is no detailed distinction between food preservation, and the preservation function cannot meet the needs of customers. Some refrigerators have separate fresh-keeping compartments, but the temperature range is single and can only keep one type of food. We often hear some complaints from customers about the need for food preservation but cannot meet their requirements. Summary of the invention

[0003] The present invention aims to overcome at least one defect of the existing refrigerator in preserving fresh food, and provides a novel refrigerator, so that the refrigerator has at least two or more atmosphere-controlled chambers, each of which has its own atmosphere-controlled membrane unit, and each of which has its own temperature value range, so as to achieve the preservation requirements of different food materials. Based on this, the present invention also provides a control method applicable to the novel refrigerator.

[0004] On the one hand, the present invention provides a control method for a refrigerator, wherein the refrigerator comprises a cabinet, a door, a controlled atmosphere preservation device and an exhaust device, a storage compartment is arranged in the cabinet, the controlled atmosphere preservation device is installed in the storage compartment, and a fresh-keeping space is defined in the controlled atmosphere preservation device, the controlled atmosphere preservation device comprises a controlled atmosphere membrane assembly connected to the exhaust device; the door is configured to open and close the storage compartment; the control method for the refrigerator comprises:

[0005] Detecting whether the door is open;

[0006] When the door is opened, it is determined whether the modified atmosphere membrane assembly of the modified atmosphere fresh-keeping device is working; if the modified atmosphere membrane assembly of the modified atmosphere fresh-keeping device is in working state, the modified atmosphere membrane assembly of the modified atmosphere fresh-keeping device is suspended; wherein, the oxygen in the fresh-keeping space is made to enter the modified atmosphere membrane assembly more than the nitrogen therein through the modified atmosphere membrane assembly by the operation of the exhaust device, so that the modified atmosphere membrane assembly of the modified atmosphere fresh-keeping device is in working state;

[0007] When the door is closed, it is detected whether the modified atmosphere membrane component of the modified atmosphere preservation device is in a suspended working state; if the modified atmosphere membrane component of the modified atmosphere preservation device is in a suspended working state, the modified atmosphere membrane component of the modified atmosphere preservation device is allowed to continue working, so that the modified atmosphere membrane component of the modified atmosphere preservation device works completely once; if the modified atmosphere membrane component of the modified atmosphere preservation device is in a stopped state, it is detected whether the modified atmosphere preservation device has been opened;

[0008] If the controlled atmosphere and fresh-keeping device has been opened, then after the door body is closed for a first preset time, when the compressor of the refrigerator stops, the controlled atmosphere membrane component of the controlled atmosphere and fresh-keeping device is put into working condition and works completely once; otherwise, after the door body is closed, the controlled atmosphere membrane component of the controlled atmosphere and fresh-keeping device is put into working condition and works completely once every second preset time, and the second preset time is greater than the first preset time.

[0009] Optionally, there are multiple controlled atmosphere preservation devices, multiple storage compartments, and multiple door bodies, each of the controlled atmosphere preservation devices is installed in one of the storage compartments, and each of the door bodies is configured to open or close one of the storage compartments; the refrigerator also includes an air circuit connecting device, the air circuit connecting device has multiple inlets and one outlet, each of the controlled atmosphere membrane components is connected to an inlet of the air circuit connecting device, and the outlet of the air circuit connecting device is connected to an air suction port; the air circuit connecting device is a control valve to controllably connect the air suction port to one or more of the multiple oxygen-rich gas collection chambers.

[0010] Optionally, one of the atmosphere-controlled membrane components is disconnected from the air extraction device through the air path connection device, so that the atmosphere-controlled membrane component of the atmosphere-controlled fresh-keeping device is in a stopped state or in a suspended working state;

[0011] The controlled atmosphere membrane component of each controlled atmosphere preservation device stops working after cumulatively working for a corresponding preset time, so that the controlled atmosphere membrane component of the controlled atmosphere preservation device works completely once.

[0012] Optionally, the refrigerator control method further includes:

[0013] Detecting whether the refrigerator is powered on for the first time;

[0014] If the refrigerator is powered on for the first time, detect whether the refrigerator compressor is working, and if the compressor is in a stopped state, turn on the air extraction device and make the gas-controlled membrane components of the multiple gas-controlled fresh-keeping devices work completely in sequence through the gas path connection device;

[0015] If the refrigerator is not powered on for the first time, a detection is performed to determine whether the door is open.

[0016] Optionally, the preset storage temperature in at least one of the fresh-keeping spaces is different from the preset storage temperatures in the remaining fresh-keeping spaces;

[0017] The atmosphere-controlled membrane components of the plurality of atmosphere-controlled fresh-keeping devices operate completely once in sequence according to the preset storage temperature in the fresh-keeping space.

[0018] On the other hand, the present invention further provides a refrigerator, comprising a box body, wherein a storage compartment and a compressor compartment are arranged in the box body, wherein the refrigerator further comprises an air extraction device, an air path connection device and a plurality of atmosphere-controlled fresh-keeping devices, each of which comprises a storage container and an atmosphere-controlled membrane assembly;

[0019] A fresh-keeping space is defined in each storage container, and a plurality of the storage containers are arranged in the storage room; a preset storage temperature in at least one storage container is different from the preset storage temperatures in the remaining storage containers;

[0020] Each of the modified atmosphere membrane components is installed in the corresponding storage container and the space around the modified atmosphere membrane component is in communication with the corresponding fresh-keeping space. Each of the modified atmosphere membrane components has at least one modified atmosphere membrane and an oxygen-rich gas collection chamber, and is configured so that more oxygen in the airflow in the space around the modified atmosphere membrane component than nitrogen therein permeates through the modified atmosphere membrane into the oxygen-rich gas collection chamber, so that more oxygen in the fresh-keeping space than nitrogen flows out of the fresh-keeping space;

[0021] The air extraction device is arranged in the compressor compartment and has an air extraction port. The gas circuit connection device has a plurality of inlets and an outlet. Each of the oxygen-rich gas collection chambers is connected to an inlet of the gas circuit connection device, and the outlet of the gas circuit connection device is connected to the air extraction port.

[0022] The gas circuit connecting device is arranged in the compressor compartment and adjacent to the air extraction device, or the gas circuit connecting device is integrated on the air extraction device.

[0023] Optionally, the gas circuit connecting device is a three-way joint, or the gas circuit connecting device is a control valve to controllably connect the gas extraction port to one or more of the multiple oxygen-rich gas collection chambers.

[0024] Optionally, there are at least two storage compartments, including a first storage compartment and a second storage compartment, and the plurality of controlled atmosphere fresh-keeping devices include a first controlled atmosphere fresh-keeping device disposed in the first storage compartment and a second controlled atmosphere fresh-keeping device disposed in the second storage compartment;

[0025] The first storage compartment is a refrigerating compartment, and the second storage compartment is a freezing compartment.

[0026] Optionally, the refrigerator also includes a plurality of moisture permeable devices, a connecting port is provided at the rear of the upper surface of the controlled atmosphere preservation device, each of the moisture permeable devices is installed at a connecting port of the controlled atmosphere preservation device, and the moisture permeable device has a moisture permeable membrane so that the moisture in the fresh-keeping space can permeate unidirectionally to the outside of the fresh-keeping space through the moisture permeable membrane.

[0027] Optionally, the refrigerator further comprises a plurality of air supply devices and a plurality of air guide devices, the air supply devices being vortex fans or centrifugal fans, each of the air supply devices being arranged in the storage compartment and above one of the air conditioning and fresh-keeping devices, and the air inlet of the air supply device facing a part or all of the area of ​​the corresponding moisture permeable membrane; a plurality of air supply ports are arranged on the rear wall of the storage compartment, each of the air guide devices being arranged on the upper side of one of the air conditioning and fresh-keeping devices, the rear end of the air guide device being connected to the air supply port, and the air guide device being configured to supply air at least to the front and / or the front of the air conditioning and fresh-keeping device;

[0028] The lower surface of the air guide device is provided with a clearance groove extending in the front-to-back direction, and the air supply device is installed at the rear end of the clearance groove;

[0029] The upper limiting surface of the clearance groove is inclined, the front end of the upper limiting surface is connected to the lower surface of the wind guide device, and the rear end of the upper limiting surface is higher than the front end of the upper limiting surface.

[0030] In the refrigerator and control method of the present invention, because there are at least two controlled atmosphere preservation devices, that is, at least two controlled atmosphere compartments, each controlled atmosphere compartment has its own controlled atmosphere membrane assembly, and each controlled atmosphere compartment has its own temperature value range, thereby meeting the preservation requirements of different food ingredients.

[0031] Furthermore, at least two or more atmosphere-controlled fresh-keeping devices share a set of exhaust devices, which can meet the fresh-keeping requirements while minimizing the product cost. The gas connection is made by using a three-way joint or a controllable three-way valve or other gas connection devices, which has a simple structure and is convenient for production operation. The special installation position of the gas connection device can make the refrigerator compact and reasonably laid out. In other words, it can be flexibly arranged according to the actual situation of the refrigerator, reasonably utilize the internal space of the refrigerator, maximize the volume ratio of the refrigerator, and achieve the best layout position at the same time, which saves product cost.

[0032] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0034] Figure 1 is a schematic front view of a refrigerator according to an embodiment of the present invention;

[0035] Figure 2 is a schematic side view of a refrigerator according to one embodiment of the present invention;

[0036] Figure 3 is a schematic front view of a partial structure of a refrigerator according to an embodiment of the present invention;

[0037] Figure 4 is a schematic rear view of a partial structure of a refrigerator according to an embodiment of the present invention;

[0038] Figure 5 is a schematic rear view of a partial structure of a refrigerator according to an embodiment of the present invention

[0039] Figure 6 is a schematic structural diagram of a controlled atmosphere fresh-keeping device in a refrigerator according to an embodiment of the present invention;

[0040] Figure 7 yes Figure 6 A schematic cross-sectional view of the modified atmosphere fresh-keeping device shown;

[0041] Figure 8 yes Figure 6 A schematic exploded view of the modified atmosphere fresh-keeping device shown;

[0042] Fig. 9 yes Figure 6 The schematic sealing principle diagram of the modified atmosphere fresh-keeping device shown;

[0043] Fig.10 yes Figure 1 A schematic partial structural diagram of an air extraction device in the refrigerator shown;

[0044] Fig.11 is a schematic flow chart of a method for controlling a refrigerator according to an embodiment of the present invention. DETAILED DESCRIPTION

[0045] Figure 1 is a schematic front view of a refrigerator according to an embodiment of the present invention. Figure 1 Shown and referenced Figures 2 to 5 The embodiment of the present invention provides a refrigerator, which includes a box body 20, a plurality of atmosphere-controlled fresh-keeping devices 30 and a refrigeration system.

[0046] A storage compartment is provided in the box body 20, and a door body is provided at the opening of the storage compartment to open and close the storage compartment. For example, a refrigeration compartment 21, a freezer compartment 22 and a variable temperature compartment 23 are provided in the box body 20. The storage temperature of the refrigeration compartment 21 is generally between 2°C and 10°C, preferably 3°C to 8°C. The temperature range in the freezer compartment 22 is generally between -14°C and -22°C. The variable temperature compartment 23 can be adjusted according to demand to store suitable food. Optionally, the temperature range of the variable temperature compartment 23 is -24°C to 10°C. Preferably, the temperature range of the variable temperature compartment 23 is -8°C to 0°C. The refrigeration system is configured to provide coldness to the storage compartment, and can be composed of a compressor, a condenser, a throttling device, an evaporator, and the like.

[0047] like Figure 1 As shown, each controlled atmosphere fresh-keeping device 30 may include a storage container and a controlled atmosphere film assembly 42. A fresh-keeping space is defined in each storage container. Multiple storage containers are arranged in the storage room, and the preset storage temperature in at least one storage container is different from the preset storage temperature in the remaining storage containers. For example, there are multiple storage rooms, and multiple controlled atmosphere fresh-keeping devices 30 are respectively arranged in multiple storage rooms, and the preset temperature in each storage room may be different, so that the preset storage temperature in the controlled atmosphere fresh-keeping device 30 is different. For another example, there are at least two storage rooms, including a first storage room and a second storage room, and multiple controlled atmosphere fresh-keeping devices 30 are respectively arranged in the first storage room and the second storage room. Further, the first storage room may be a refrigerated room 21, and the second storage room may be a variable temperature room 23 or a freezing room 22. For another example, multiple storage containers may be arranged in one storage room, but the preset storage temperatures in the multiple storage containers are different.

[0048] Each controlled atmosphere membrane assembly 42 is installed in a corresponding storage container and the space around the controlled atmosphere membrane assembly 42 is connected to the corresponding fresh-keeping space. Each controlled atmosphere membrane assembly 42 has at least one controlled atmosphere membrane and an oxygen-rich gas collecting chamber, and is configured so that the oxygen in the airflow in the space around the controlled atmosphere membrane assembly 42 passes through the controlled atmosphere membrane to enter the oxygen-rich gas collecting chamber more than the nitrogen therein, so that the oxygen in the fresh-keeping space flows out of the fresh-keeping space more than the nitrogen.

[0049] In the embodiment of the present invention, since there are at least two controlled atmosphere preservation devices 30, that is, at least two controlled atmosphere chambers, each controlled atmosphere chamber has its own controlled atmosphere membrane assembly 42, and each controlled atmosphere chamber has its own temperature value range, so as to meet the preservation requirements of different food ingredients.

[0050] Preferably, in this embodiment, the refrigerator further comprises an air extraction device 70 and an air circuit connection device 80, the air extraction device 70 has an air extraction port, and each oxygen-enriched gas collection cavity is connected to the air extraction port through the outlet pipeline 34 and the air circuit connection device 80. Specifically, the air circuit connection device 80 has multiple inlets and one outlet, and each oxygen-enriched gas collection cavity is connected to an inlet of the air circuit connection device 80. The outlet of the air circuit connection device 80 is connected to the air extraction port through a pipeline 81. Further optionally, the air circuit connection device 80 is a three-way joint, that is, the air extraction port is connected to multiple oxygen-enriched gas collection cavities through a three-way joint. Further preferably, the air circuit connection device 80 is a control valve, that is, the air extraction port is controlled to be connected to multiple oxygen-enriched gas collection cavities through a control valve. At least two or more gas conditioning and fresh-keeping devices 30 share a set of air extraction devices 70, which meets the fresh-keeping requirements while minimizing the product cost. The air circuit connection is made by using a three-way joint or a controllable three-way valve, which has a simple structure and is convenient for production operation.

[0051] Furthermore, a compressor compartment for placing a compressor is also provided inside the box body, and an exhaust device 70 is provided inside the compressor compartment. The air circuit connection device 80 can be installed inside the storage room and behind an atmosphere-controlled fresh-keeping device, inside the insulation layer of the box body, or inside a compressor compartment provided inside the box body. The special installation position of the air circuit connection device 80 can make the structure of the refrigerator compact and the layout reasonable. In other words, this allows for flexible arrangement according to the actual situation of the refrigerator, reasonable use of the internal space of the refrigerator, and the maximum possible increase in the volume ratio of the refrigerator, while achieving the optimal arrangement position and more economical product costs. Preferably, as Figure 4 As shown, the gas connection device 80 can be installed in the compressor compartment and adjacent to the air extraction device 70. More preferably, as shown in FIG. Figure 5 As shown, the gas line connecting device 80 is integrated on the air extraction device 70 .

[0052] When the exhaust device 70 in the compressor compartment is working, when the exhaust control is performed using the three-way joint, the air conditioning membrane assembly 42 in the cold storage room and the air conditioning membrane assembly 42 in the low temperature room are exhausted at the same time, and the working time is determined according to the air conditioning membrane assembly 42 in the cold storage room and the low temperature air conditioning membrane assembly 42 which needs longer exhaust time, so as to ensure the exhaust quality and meet the preservation requirements. When the exhaust control is performed using the control valve, the air conditioning membrane assembly 42 in the cold storage room and the air conditioning membrane assembly 42 in the low temperature room are exhausted at the same time, and the working time is controlled by the control valve according to the air conditioning membrane assembly 42 in the cold storage room and the low temperature air conditioning membrane assembly 42 which needs longer exhaust time, so as to ensure the exhaust quality and meet the preservation requirements. The temperatures of various fresh-keeping compartments are set at different levels. For example, the temperature in the refrigerated compartment 21 is set at 5-8°C, which is conducive to the preservation of fruits, vegetables, etc.; the temperature in low-temperature compartments such as the variable temperature compartment 23 is set at 0--3°C, which is conducive to the preservation of meat, seafood and other ingredients.

[0053] In some embodiments of the present invention, the plurality of controlled atmosphere fresh-keeping devices 30 include a first controlled atmosphere fresh-keeping device disposed in the first storage room and a second controlled atmosphere fresh-keeping device disposed in the second storage room. The first storage room is located above the second storage room, and the first controlled atmosphere fresh-keeping device is located above the second controlled atmosphere fresh-keeping device.

[0054] In some embodiments of the present invention, the refrigerator may further include a plurality of moisture permeable devices 41 and a plurality of air supply devices. A fresh-keeping space is defined in the atmosphere-controlled fresh-keeping device 30, and a connecting port is provided at the rear of the upper surface of the atmosphere-controlled fresh-keeping device 30. The moisture permeable device 41 may be installed at the connecting port, and the moisture permeable device 41 has a moisture permeable film to allow water to flow in one direction, and when the humidity in the fresh-keeping space is greater than the humidity outside the fresh-keeping space, the water in the fresh-keeping space flows out of the fresh-keeping space through the moisture permeable film. That is to say, the moisture permeable film allows the water in the fresh-keeping space to permeate in one direction to the outside of the fresh-keeping space through the moisture permeable film, so that the fresh-keeping space has a humidity that meets the requirements.

[0055] The air supply device can be a vortex fan 50 or a centrifugal fan. The air supply device is arranged in the storage room and is located above a corresponding air conditioning and fresh-keeping device 30. The air inlet of the vortex fan 50 or the centrifugal fan faces part or all of the area of ​​the corresponding moisture permeable membrane. When the air supply device is turned on, the air flow outside the air conditioning and fresh-keeping device 30 can be accelerated, especially the air flow outside the moisture permeable device 41, the air circulation near the moisture permeable device 41 can be accelerated, the humidity value outside the air conditioning and fresh-keeping device 30 can be reduced, the moisture permeable membrane efficiency can be prevented from being reduced or completely failing so that the water vapor inside the fresh-keeping space cannot be discharged, the moisture permeation efficiency can be improved, and frosting can be prevented. The degree of intelligence and wisdom is high. Because it has a moisture permeable device and a vortex fan or a centrifugal fan, the air inlet of the vortex fan or the centrifugal fan can be facing the moisture permeable membrane, which can speed up the flow of air outside the controlled atmosphere preservation device and reduce the humidity value outside the controlled atmosphere preservation device, especially the humidity value outside the moisture permeable membrane, forming a larger humidity difference, preventing the moisture permeable membrane from reducing efficiency or completely failing so that the water vapor inside the preservation space cannot be discharged, thereby improving the moisture permeability efficiency, and thereby reducing the water vapor generated by the food from gathering inside to form condensation or frost, and at the same time, it can also make the indoor coldness of the storage room evenly distributed as soon as possible, with a high degree of intelligence and wisdom.

[0056] In some embodiments of the present invention, Figure 6 , Figure 7 and Figure 8 As shown, the refrigerator further includes a plurality of air guide devices 60. An air supply port 24 may be provided on the rear wall of each storage compartment, and a return air port 25 may be provided at the lower portion of the rear wall of the storage compartment for circulation of refrigeration airflow in the storage compartment. The return air port 25 is located below the air supply port 24. The air guide device 60 is provided on the upper side of the air conditioning and fresh-keeping device 30, and the rear end of the air guide device 60 is connected to the air supply port 24. The air guide device 60 is configured to supply air to at least the front and / or the front of the air conditioning and fresh-keeping device 30. The air guide device 60 guides the airflow to the front, which can prevent the cold air from blowing directly on the rear wall of the air conditioning and fresh-keeping device 30, and prevent the local temperature of the rear wall from being too low to form frost on the inner wall surface, which affects the user experience, that is, it can be ensured that the air supply will not blow directly on the rear wall of the drawer to cause frost. Further, the air guide device 60 is spaced apart from the upper surface of the air conditioning and fresh-keeping device 30, so that the airflow flows around the air conditioning and fresh-keeping device 30 in the storage compartment.

[0057] In some embodiments of the present invention, the gas-conditioning membrane assembly 42 is preferably arranged at the front side of the moisture permeable device 41. The lower surface of the air guide device 60 is provided with a clearance groove 61 extending in the front-to-back direction, and the vortex fan 50 or the centrifugal fan is installed at the rear end of the clearance groove 61. The structure can be compact and small in size, and it is also convenient for the air flow of the air supply device to be blown out. The air outlet of the vortex fan 50 or the centrifugal fan can face the front. Further, the upper limiting surface of the clearance groove 61 is inclined, the front end of the upper limiting surface is connected to the lower surface of the air guide device 60, and the rear end of the upper limiting surface is higher than the front end of the upper limiting surface. An air guide duct connected to the air supply port 24 is provided in the air guide device 60, and a plurality of outlets are provided on the lower surface of the air guide device 60, and / or a plurality of outlets are provided on the front surface of the air guide device 60. For example, the air guide device 60 has a bottom plate and a front grille that define the air guide duct, and the front grille is provided at the front end of the bottom plate. The bottom plate is provided with a recess 61 and an outlet, the front grille is arranged vertically, and the grille hole is the outlet. The special arrangement of the centrifugal fan and the recess can make the storage compartment compact, reasonably laid out, convenient for airflow, low noise, and comfortable.

[0058] In some embodiments of the present invention, the storage container of the controlled atmosphere preservation device 30 includes a drawer 31 and an upper cover 32. The drawer 31 can be slidably installed in the storage room through a slide rail assembly 39, and the upper cover 32 is used to seal the upper opening of the drawer 31. In order to facilitate the retrieval and closing of the drawer 31, the controlled atmosphere preservation device 30 also includes a lifting device, and the upper cover 32 is movably arranged on the upper side of the drawer 31. The drawer 31 is configured to drive the upper cover 32 to descend through the lifting device when moving backward to close the drawer 31. The moisture permeable device 41 and the controlled atmosphere membrane assembly 42 are installed on the upper cover 32.

[0059] In some embodiments of the present invention, the refrigerator may further include a humidity detection device, which is configured to detect the humidity in the fresh-keeping space and / or the humidity outside the fresh-keeping space and in the storage room. The vortex fan 50 or the centrifugal fan is configured to start according to the humidity value detected by the humidity detection device. For example, the humidity detection device includes a first humidity detection device and a second humidity detection device. The first humidity detection device is arranged in the fresh-keeping space, and detects the humidity in the fresh-keeping space to obtain a first humidity value. The second humidity detection device is arranged outside the fresh-keeping space and in the storage room, and detects the humidity outside the fresh-keeping space and in the storage room to obtain a second humidity value. The vortex fan 50 or the centrifugal fan may be configured to turn on when the difference between the first humidity value and the second humidity value is less than or equal to the first preset value, and turn off when the difference between the first humidity value and the second humidity value is less than the second preset value. The second preset value is less than the first preset value.

[0060] During specific use, determine whether the difference between the first humidity value and the second humidity value is greater than the first preset value. If not, turn on the vortex fan 50 or the centrifugal fan. If so, do not turn on the vortex fan 50 or the centrifugal fan. Further, continue to determine whether the difference between the first humidity value and the second humidity value is less than the second preset value, and the second preset value is less than the first preset value. If so, turn off the vortex fan 50 or the centrifugal fan. Otherwise, continue to keep the vortex fan 50 or the centrifugal fan in operation. According to the difference between the first humidity value and the second humidity value, the opening of the vortex fan 50 or the centrifugal fan is controlled. When the moisture permeation device 41 performs unidirectional moisture penetration, the humidity in the fresh-keeping space gradually decreases, and the humidity outside gradually increases. The difference between the two becomes smaller and smaller until it is less than or equal to the first preset value, and the vortex fan 50 or the centrifugal fan is turned on to improve the moisture permeation efficiency. Furthermore, the humidity in the fresh-keeping space gradually decreases again, and the external humidity first decreases under the action of the vortex fan 50 or the centrifugal fan, and then remains unchanged on the basis of the decrease, or the decrease or increase rate decreases, eventually making the difference between the inside and outside of the fresh-keeping space smaller and smaller. When the difference between the humidity in the fresh-keeping space and the humidity outside is small, it can be considered that the humidity in the fresh-keeping space becomes low and meets the requirements. The difference between the inside and outside is not enough to make the moisture permeable device 41 work, and the vortex fan 50 or the centrifugal fan stops to save energy.

[0061] It should be noted that, for some reason, such as when the humidity in the storage room suddenly increases, the vortex fan 50 or the centrifugal fan may be in a closed state. If it is determined that the difference between the first humidity value and the second humidity value is less than the first preset value, or even less than the second preset value, the vortex fan 50 or the centrifugal fan must be turned on first. After the vortex fan 50 or the centrifugal fan is turned on, the humidity value outside the fresh-keeping space is significantly reduced, ensuring the moisture permeability efficiency of the moisture permeation device 41. Optionally, in order to further improve the control accuracy and prevent misoperation caused by the relatively high humidity inside and outside the fresh-keeping space, when determining whether the difference between the first humidity value and the second humidity value is less than the second preset value, it is also necessary to determine whether the first humidity value is greater than the preset humidity value; when the difference between the first humidity value and the second humidity value is less than the second preset value, and the first humidity value is less than or equal to the preset humidity value, the vortex fan 50 or the centrifugal fan is turned off.

[0062] In some embodiments of the present invention, the storage container of the atmosphere-controlled fresh-keeping device 30 further includes a cylinder 38 with a forward opening, and the drawer 31 can be installed in the cylinder 38 so as to move forward and backward, and the cylinder 38 is installed in the storage room. The upper wall of the cylinder 38 has a bottom plate and a front grille of the air guide device 60, that is, the bottom plate and the front grille can be integrally formed and serve as the upper wall of the cylinder. Further, the box 20 also includes an upper outer cover plate 35 and a lower outer cover plate 36, and the upper outer cover plate 35 and the lower outer cover plate 36 define the above-mentioned storage room, and the upper outer cover plate 35 is covered on the upper side, left and right sides and the rear side of the cylinder 38, and defines the air guide duct of the air guide device 60 with the upper wall of the cylinder 38. It can also be said that the air guide device 60 includes the upper outer cover plate 35 and the upper wall of the cylinder 38. The lower outer cover plate 36 is arranged on the lower side, left and right sides and the rest of the rear side of the cylinder 38.

[0063] In some embodiments of the present invention, Figure 8 and Fig. 9 As shown, the lifting device includes a lifting bracket 71, a connecting frame 72, a spring 73, a roller 74, and a pressing platform 75.

[0064] The lifting bracket 71 is installed on the cylinder 38, the connecting frame 72 is installed on the lifting bracket 71 in a lifting and moving manner, the upper cover 32 is installed on the connecting frame 72, the spring 73 is used to cause the connecting frame 72 to move upward, and the roller 74 is rotatably installed on the lower end of the connecting frame 72 along the axis extending in the left and right directions. The pressing platform 75 is arranged on the side wall of the drawer, and is used to make the roller 74 gradually move downward along the inclined side of the pressing platform 75 during the inward movement of the drawer 31, so as to drive the upper cover 32 to move downward for sealing. After the drawer 31 is completely pushed into the cylinder 38, the roller 74 is located on the lower side of the lower horizontal surface of the pressing platform 75, so that the upper cover 32 remains in a state of closing the drawer 31, or the upper cover 32 remains in a state of closing the cylinder 38, thereby keeping the drawer 31 closed.

[0065] In some embodiments of the present invention, Fig.10 As shown, the refrigerator also includes an exhaust pipe 93, and the air extraction device 70 also includes a pump head 91 with a pump outlet and a motor, and the motor includes a motor housing 92. The exhaust pipe 93 is wound around the motor housing 92, and the inlet of the exhaust pipe 93 is connected to the pump outlet on the pump head 91. Specifically, the inlet of the exhaust pipe 93 is connected to the pump outlet through a flexible tube 94. The flexible tube 94 can be a plastic tube. Specifically, the air extraction device 70 is a vacuum pump, and the heat generated by the vacuum pump is concentrated in the motor part, which is the key part of cooling. The exhaust pipe 93 is connected to the pump outlet of the vacuum pump with a plastic tube, and the cold air is conducted through the exhaust pipe 93 to reduce the temperature of the motor, and the high-speed air is forced to convect through the exhaust pipe 93 to reduce the temperature of the motor, and the noise reduction is achieved by extending the total exhaust length.

[0066] Furthermore, the refrigerator further comprises a bimetallic heat-conducting device 95, the motor housing 92 and the pump head 91 are both thermally connected to the bimetallic heat-conducting device 95, and the bimetallic heat-conducting device 95 is configured to transfer the heat generated by the motor to the pump head 91, and disconnect the heat transfer after the temperature of the pump head 91 reaches a preset temperature. By setting the bimetallic heat-conducting device 95, when the temperature of the pump head 91 is low, since the pump head 91 is connected to the motor housing 92, the high temperature thereof is used for heating to prevent the pump head 91 from frosting and icing; when the temperature of the pump head 91 is high, the heat transfer is disconnected to prevent the high temperature on the motor from continuously heating the pump head 91. After the temperature is lowered, the bimetallic heat-conducting device 95 is reset for heat transfer. By using the bimetallic heat-conducting device 95, the structure is simple, the cost is low, and the service life is long. Furthermore, the motor housing 92 is directly used for cooling, and the structure of the motor and the exhaust device 70 is not changed, which is highly practical and low in cost. In some embodiments of the present invention, the exhaust pipe 93 is made of a heat-conducting material, and the bimetallic heat-conducting device 95 is thermally connected to the motor housing 92 through the exhaust pipe 93. Specifically, the exhaust pipe 93 includes an inlet pipe section, a winding pipe section, and an outlet pipe section, and the inlet pipe section and the outlet pipe section are connected to the two ends of the winding pipe section, and the winding pipe section is wound around the motor housing 92. The bimetallic heat-conducting device 95 is thermally connected to the end of the outlet pipe section connected to the winding pipe section. For example, a metal sheet 96 is provided on the exhaust pipe 93, and the metal sheet 96 is thermally connected to the bimetallic heat-conducting device 95. Transferring heat through the exhaust pipe 93 will not cause the pump head 91 to heat up too quickly or too high, causing frequent temperature changes in the pump head 91, causing frequent operation of the bimetallic heat-conducting device 95, and affecting the life and performance of the pump head 91.

[0067] By setting a temperature-controlled heat conduction device, when the temperature of the pump head is low, the high temperature generated by the motor is used for heating to prevent the pump head from frosting and icing; when the temperature of the pump head is high, the heat transfer is disconnected to prevent the high temperature on the motor from continuously heating the pump head. It can reduce or prevent frost and icing at the pump head, ensure the performance of the vacuum pump, and extend the reliability of the vacuum pump. The pump outlet is connected to the exhaust pipe, and the cold air is conducted through the exhaust pipe to reduce the temperature of the motor through temperature conduction. The high-speed air is forced to convection through the exhaust pipe to reduce the temperature of the motor, and the noise is reduced by extending the total exhaust length. It prevents the motor temperature from being too high and affecting the service life of the exhaust device, and it can also reduce the noise generated by the exhaust device and improve the user experience. The temperature-controlled heat conduction device can also prevent the continuous heating of the pump head from affecting the heat dissipation effect of the motor.

[0068] The present invention also provides a refrigerator control method. Fig.11 is a schematic flow chart of a method for controlling a refrigerator according to an embodiment of the present invention, such as Fig.11 As shown, a refrigerator control method includes:

[0069] S101: Detect whether the door is open. When the door is open, enter S102: determine whether the atmosphere-controlled membrane assembly of the atmosphere-controlled fresh-keeping device 30 is working; if the atmosphere-controlled membrane assembly of the atmosphere-controlled fresh-keeping device 30 is in working state, enter S103: suspend the atmosphere-controlled membrane assembly of the atmosphere-controlled fresh-keeping device 30. Among them, the exhaust device 70 is operated so that more oxygen in the fresh-keeping space enters the exhaust device 70 through the atmosphere-controlled membrane assembly than the nitrogen therein, so that the atmosphere-controlled membrane assembly of the atmosphere-controlled fresh-keeping device 30 is in working state.

[0070] When the door is closed, enter S104: detect whether the modified atmosphere membrane assembly of the modified atmosphere preservation device 30 is in a suspended state; if the modified atmosphere membrane assembly of the modified atmosphere preservation device 30 is in a suspended state, enter S105: make the modified atmosphere membrane assembly of the modified atmosphere preservation device 30 continue to work, so that the modified atmosphere membrane assembly of the modified atmosphere preservation device 30 works completely once; if the modified atmosphere membrane assembly of the modified atmosphere preservation device 30 is in a stopped state, enter S106: detect whether the modified atmosphere preservation device 30 has been opened;

[0071] If the controlled atmosphere preservation device 30 has been opened, enter S107: after the door is closed for the first preset time, when the compressor of the refrigerator stops, the controlled atmosphere membrane assembly of the controlled atmosphere preservation device 30 is in working state and works completely once; otherwise, enter S108: after the door is closed, every second preset time interval, the controlled atmosphere membrane assembly of the controlled atmosphere preservation device 30 is in working state and works completely once. The second preset time is greater than the first preset time. It is convenient to store cold energy in the controlled atmosphere preservation device 30, the food preservation effect is good, and the refrigerator has high energy efficiency. The first preset time can be 25min to 35min, such as 28min, 30min, 32min, etc. The second preset time can be 4h to 5h, such as 4.5h.

[0072] In some embodiments of the present invention, when there are multiple controlled atmosphere preservation devices 30, multiple storage compartments, and multiple door bodies, each controlled atmosphere preservation device 30 is installed in a storage compartment, and each door body is configured to open or close a storage compartment, multiple controlled atmosphere preservation devices 30 can be controlled uniformly. Optionally, each controlled atmosphere preservation device 30 can also be controlled individually, and then a controlled atmosphere membrane assembly is disconnected from the exhaust device 70 through the air path connection device 80, so that the controlled atmosphere membrane assembly of the controlled atmosphere preservation device 30 is in a stopped state or in a suspended working state. In other words, when the controlled atmosphere membrane assembly is not working, the exhaust device 70 can be in a working state. The controlled atmosphere membrane assembly of each controlled atmosphere preservation device 30 stops working after accumulating a corresponding preset time, so that the controlled atmosphere membrane assembly of the controlled atmosphere preservation device 30 works completely once.

[0073] In some embodiments of the present invention, the control method of the refrigerator also includes: S201: Detect whether the refrigerator is powered on for the first time. If the refrigerator is powered on for the first time, enter S202: Detect whether the refrigerator compressor is working. If the compressor is in a stopped state, turn on the exhaust device 70 and make the gas-controlled membrane components of multiple gas-controlled preservation devices 30 work completely once in sequence through the gas path connection device 80; if the refrigerator is not powered on for the first time, detect whether the door is open. Furthermore, the preset storage temperature in at least one fresh-keeping space is different from the preset storage temperature in the remaining fresh-keeping spaces. The gas-controlled membrane components of multiple gas-controlled preservation devices 30 work completely once in sequence according to the high and low order of the preset storage temperatures in the fresh-keeping spaces. For example, the plurality of controlled atmosphere fresh-keeping devices include a first controlled atmosphere fresh-keeping device and a second controlled atmosphere fresh-keeping device, then the exhaust device 70 is turned on and the controlled atmosphere membrane components of the plurality of controlled atmosphere fresh-keeping devices 30 are operated in sequence through the gas path connecting device 80, including S203: firstly the controlled atmosphere membrane component of the first controlled atmosphere fresh-keeping device is operated for a corresponding preset time, and S204: then the controlled atmosphere membrane component of the second controlled atmosphere fresh-keeping device is operated for a corresponding preset time. The control method of the refrigerator makes the cooling capacity and the controlled atmosphere perfectly matched, and can maximize the fresh-keeping.

[0074] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived based on the content disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all these other variations or modifications.

Claims

1. A refrigerator control method, characterized in that: The refrigerator comprises a box body, a door body, a controlled atmosphere preservation device and an exhaust device, wherein a storage compartment is arranged in the box body, the controlled atmosphere preservation device is installed in the storage compartment, and a fresh-keeping space is defined in the controlled atmosphere preservation device, and the controlled atmosphere preservation device comprises a controlled atmosphere membrane assembly connected to the exhaust device; The door is configured to open and close the storage compartment; The refrigerator control method comprises: Detecting whether the door is open; When the door is opened, it is determined whether the modified atmosphere membrane assembly of the modified atmosphere fresh-keeping device is working; if the modified atmosphere membrane assembly of the modified atmosphere fresh-keeping device is in working state, the modified atmosphere membrane assembly of the modified atmosphere fresh-keeping device is suspended; wherein, the oxygen in the fresh-keeping space is made to enter the modified atmosphere membrane assembly more than the nitrogen therein through the modified atmosphere membrane assembly by the operation of the exhaust device, so that the modified atmosphere membrane assembly of the modified atmosphere fresh-keeping device is in working state; When the door is closed, it is detected whether the modified atmosphere membrane component of the modified atmosphere preservation device is in a suspended working state; if the modified atmosphere membrane component of the modified atmosphere preservation device is in a suspended working state, the modified atmosphere membrane component of the modified atmosphere preservation device is allowed to continue working, so that the modified atmosphere membrane component of the modified atmosphere preservation device works completely once; if the modified atmosphere membrane component of the modified atmosphere preservation device is in a stopped state, it is detected whether the modified atmosphere preservation device has been opened; If the controlled atmosphere and fresh-keeping device has been opened, then after the door body is closed for a first preset time, when the compressor of the refrigerator stops, the controlled atmosphere membrane component of the controlled atmosphere and fresh-keeping device is put into working condition and works completely once; otherwise, after the door body is closed, the controlled atmosphere membrane component of the controlled atmosphere and fresh-keeping device is put into working condition and works completely once every second preset time, and the second preset time is greater than the first preset time.

2. The refrigerator control method according to claim 1, characterized in that: There are multiple controlled atmosphere preservation devices, multiple storage compartments, and multiple door bodies. Each controlled atmosphere preservation device is installed in one of the storage compartments, and each of the door bodies is configured to open or close one of the storage compartments. The refrigerator also includes an air circuit connection device, which has multiple inlets and one outlet. Each of the controlled atmosphere membrane components is connected to an inlet of the air circuit connection device, and the outlet of the air circuit connection device is connected to an air suction port. The air circuit connection device is a control valve to controllably connect the air suction port to one or more of the multiple oxygen-rich gas collection chambers.

3. The refrigerator control method according to claim 2, characterized in that: Disconnect one of the atmosphere-controlled membrane components from the air extraction device through the air path connection device, so that the atmosphere-controlled membrane component of the atmosphere-controlled fresh-keeping device is in a stopped state or in a suspended working state; The controlled atmosphere membrane component of each controlled atmosphere preservation device stops working after cumulatively working for a corresponding preset time, so that the controlled atmosphere membrane component of the controlled atmosphere preservation device works completely once.

4. The refrigerator control method according to claim 2, characterized in that: Also includes: Detecting whether the refrigerator is powered on for the first time; If the refrigerator is powered on for the first time, detect whether the refrigerator compressor is working, and if the compressor is in a stopped state, start the air extraction device and make the gas-controlled membrane components of the multiple gas-controlled fresh-keeping devices work completely in sequence through the gas path connection device; If the refrigerator is not powered on for the first time, a detection is performed to determine whether the door is open.

5. The refrigerator control method according to claim 4, characterized in that: The preset storage temperature in at least one of the fresh-keeping spaces is different from the preset storage temperatures in the remaining fresh-keeping spaces; The atmosphere-controlled membrane components of the plurality of atmosphere-controlled fresh-keeping devices operate completely once in sequence according to the preset storage temperature in the fresh-keeping space.

6. A refrigerator for use in the refrigerator control method according to any one of claims 1 to 5, comprising a box body, wherein a storage compartment and a compressor compartment are arranged in the box body, characterized in that: It also includes an air extraction device, an air path connection device and a plurality of atmosphere-controlled fresh-keeping devices, each of which includes a storage container and an atmosphere-controlled membrane assembly; A fresh-keeping space is defined in each storage container, and a plurality of storage containers are arranged in the storage room; a preset storage temperature in at least one storage container is different from the preset storage temperatures in the remaining storage containers; Each of the modified atmosphere membrane components is installed in the corresponding storage container and the space around the modified atmosphere membrane component is in communication with the corresponding fresh-keeping space. Each of the modified atmosphere membrane components has at least one modified atmosphere membrane and an oxygen-rich gas collection chamber, and is configured so that more oxygen in the airflow in the space around the modified atmosphere membrane component than nitrogen therein permeates through the modified atmosphere membrane into the oxygen-rich gas collection chamber, so that more oxygen in the fresh-keeping space than nitrogen flows out of the fresh-keeping space; The air extraction device is arranged in the compressor compartment and has an air extraction port. The gas circuit connection device has multiple inlets and one outlet. Each of the oxygen-rich gas collection chambers is connected to an inlet of the gas circuit connection device, and the outlet of the gas circuit connection device is connected to the air extraction port. The gas circuit connecting device is arranged in the compressor compartment and adjacent to the air extraction device, or the gas circuit connecting device is integrated on the air extraction device.

7. The refrigerator according to claim 6, characterized in that: The gas circuit connection device is a three-way joint, or the gas circuit connection device is a control valve to controllably connect the gas extraction port with one or more of the plurality of oxygen-rich gas collection chambers.

8. The refrigerator according to claim 6, characterized in that: There are at least two storage compartments, including a first storage compartment and a second storage compartment, and the plurality of controlled atmosphere fresh-keeping devices include a first controlled atmosphere fresh-keeping device disposed in the first storage compartment and a second controlled atmosphere fresh-keeping device disposed in the second storage compartment; The first storage compartment is a refrigerating compartment, and the second storage compartment is a variable temperature compartment or a freezing compartment.

9. The refrigerator according to claim 6, characterized in that: Also includes multiple moisture permeable devices, A connecting port is provided at the rear of the upper surface of the controlled atmosphere preservation device, each of the moisture permeable devices is installed at a connecting port of the controlled atmosphere preservation device, and the moisture permeable device has a moisture permeable membrane so that the moisture in the preservation space can permeate unidirectionally to the outside of the preservation space through the moisture permeable membrane.

10. The refrigerator according to claim 9, characterized in that: It also includes a plurality of air supply devices and a plurality of air guide devices, wherein the air supply devices are vortex fans or centrifugal fans, each of the air supply devices is arranged in the storage room and above one of the air-conditioning and fresh-keeping devices, and the air inlet of the air supply device faces a part or all of the area of ​​the corresponding moisture-permeable membrane; a plurality of air supply ports are arranged on the rear wall of the storage room, each of the air guide devices is arranged on the upper side of one of the air-conditioning and fresh-keeping devices, the rear end of the air guide device is connected to the air supply port, and the air guide device is configured to supply air at least to the front and / or the front of the air-conditioning and fresh-keeping device; The lower surface of the air guide device is provided with a clearance groove extending in the front-to-back direction, and the air supply device is installed at the rear end of the clearance groove; The upper limiting surface of the clearance groove is inclined, the front end of the upper limiting surface is connected to the lower surface of the wind guide device, and the rear end of the upper limiting surface is higher than the front end of the upper limiting surface.

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