Airflow guiding device for fresh-keeping equipment and fresh-keeping equipment
By designing an airflow guiding device, the oxygen concentration of multiple preservation compartments can be adjusted by the same controlled atmosphere device, which solves the problems of high equipment cost and large space occupation in the existing technology and improves space utilization.
Patent Information
- Application Number
- CN202410480502.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-19
- Publication Date
- 2025-10-24
AI Technical Summary
The atmosphere control device in the existing fresh-keeping equipment can only adjust the oxygen concentration of one fresh-keeping compartment separately, and cannot adjust multiple compartments at the same time, resulting in high equipment cost and large space occupation.
Design an airflow guiding device that uses a combination of rotating dampers and vents to achieve air circulation between multiple preservation compartments and a controlled atmosphere device, and uses the same controlled atmosphere device to regulate the oxygen concentration of multiple preservation compartments.
The same gas conditioning device can be used to adjust the oxygen concentration in multiple fresh-keeping compartments, which reduces equipment costs and improves space utilization.
Smart Images
Figure CN120830970A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application belongs to the technical field of food preservation equipment, and particularly provides an airflow guiding device for a preservation equipment and the preservation equipment. BACKGROUND
[0002] The current preservation equipment mainly includes refrigerators, freezers, refrigerators, etc., which mainly preserve food materials in the internal preservation chamber by reducing the temperature of the internal preservation chamber.
[0003] However, oxygen in the air is very active in nature and can still cause various spoilage reactions and corruption of food. Oxygen destroys nutrients, pigments, flavor substances and other components of food through oxidation reactions. At the same time, oxygen is also a necessary condition for the growth of aerobic microorganisms. Under aerobic conditions, the spoilage reaction caused by microbial reproduction speeds up, resulting in a shortened storage period of food.
[0004] In order to overcome the above problems, some preservation equipment is also provided with a gas adjusting device to consume oxygen in the preservation chamber through the gas adjusting device, thereby reducing the oxygen content in the preservation chamber. Specifically, the gas adjusting device includes a cathode, an anode and an electrolyte filled between the cathode and the anode. The gas adjusting device contacts the air in the preservation chamber through the cathode, so that the oxygen is reduced at the cathode, i.e. O2+2H2O+4e - →4OH - . And the oxidation reaction occurs at the anode and oxygen is generated, i.e. 4OH - →O2+2H2O+4e - . Thus, the gas adjusting device adjusts the oxygen concentration in the preservation chamber.
[0005] However, the gas adjusting device in the existing preservation equipment can only adjust the oxygen concentration in one preservation chamber. If the oxygen concentration needs to be adjusted in multiple preservation chambers, a gas adjusting device needs to be provided for each preservation chamber. In this way, not only the cost of the preservation equipment is increased, but also more space in the preservation equipment is occupied, resulting in a low volume rate of the preservation equipment. SUMMARY
[0006] An object of the present application is to provide an airflow guiding device for a preservation equipment and the preservation equipment to solve the problem that the gas adjusting device in the existing preservation equipment cannot adjust the gas for multiple preservation chambers.
[0007] To achieve the above object, the present application provides, in a first aspect, an airflow guiding device for a preservation equipment, the preservation equipment comprising a box body defining a first preservation chamber and a second preservation chamber, and a gas adjusting device adjusting the oxygen concentration through an electrochemical reaction; the airflow guiding device comprising:
[0008] The airflow guiding member defines a damper cavity, and a first air inlet channel, a first air outlet channel, a second air inlet channel and a second air outlet channel respectively communicated with the damper cavity, the first air inlet channel and the first air outlet channel are further used for communicating the first fresh-keeping compartment, and the second air inlet channel and the second air outlet channel are further used for communicating the second fresh-keeping compartment; a first air vent, a second air vent and a third air vent for communicating with the modified atmosphere device are arranged on the peripheral wall of the damper cavity;
[0009] A rotary damper is installed in the damper cavity, the rotary damper can be rotated to a position for shielding the first air inlet channel, the first air outlet channel and the first air vent, so that one of the second air inlet channel and the second air outlet channel is communicated with the second air vent, and the other is communicated with the third air vent; the rotary damper can also be rotated to a position for shielding the second air inlet channel, the second air outlet channel and the second air vent, so that one of the first air inlet channel and the first air outlet channel is communicated with the first air vent, and the other is communicated with the third air vent.
[0010] Optionally, the airflow guiding device further comprises a partition member, the partition member separates the damper cavity into an air inlet cavity and an air outlet cavity; the air inlet cavity is respectively communicated with the first air inlet channel and the second air inlet channel, and the air outlet cavity is respectively communicated with the first air outlet channel and the second air outlet channel.
[0011] Optionally, the first air vent and the second air vent are formed on the bottom wall of the air inlet cavity, and the third air vent is formed on the peripheral wall of the air outlet cavity.
[0012] Optionally, the rotary damper comprises a rotating disc and a plurality of shielding structures spaced along the circumference of the rotating disc, the shielding structures extend in the axial direction of the rotating disc away from the rotating disc, and the shielding structures are used for shielding the first air inlet channel, the first air outlet channel, the second air inlet channel and the second air outlet channel; a plurality of avoidance holes spaced along the circumference of the rotating disc are arranged on the rotating disc, the avoidance holes are used for avoiding the first air vent and the second air vent, so that when one of the first air vent and the second air vent is shielded by the rotating disc, the other is aligned with at least one of the plurality of avoidance holes.
[0013] Optionally, the shielding structures are arranged as arc-shaped plates; and / or, a gap is formed between the partition member and the airflow guiding member for avoiding the shielding structures.
[0014] Optionally, an opening is arranged on the side wall of the damper cavity away from the rotating disc, and a cover plate matched with the opening is arranged on the partition member, so that the cover plate shields the opening.
[0015] Optionally, the airflow guiding member further defines a fan cavity; the third vent is formed between the fan cavity and the damper cavity to communicate the fan cavity and the damper cavity; a fourth vent is provided on a peripheral wall of the fan cavity for leading to the gas regulating device.
[0016] Optionally, the airflow guiding device further comprises a fan installed in the fan cavity and / or a driving device drivingly connected with the rotary damper.
[0017] The present application provides, in a second aspect, a fresh-keeping device, comprising:
[0018] a cabinet defining a first fresh-keeping compartment and a second fresh-keeping compartment;
[0019] a gas regulating device configured to regulate oxygen concentration through electrochemical reaction;
[0020] The airflow guiding device of any one of the first aspect is used to make air circulate between the first fresh-keeping compartment and / or the second fresh-keeping compartment and the gas regulating device, so as to regulate the oxygen concentration in the first fresh-keeping compartment and / or the second fresh-keeping compartment by means of the gas regulating device.
[0021] Optionally, the cabinet further defines a gas regulating space for arranging the gas regulating device, the gas regulating space being in fluid communication with the first vent, the second vent and the third vent respectively; and / or the fresh-keeping device is a refrigerator.
[0022] Based on the foregoing description, those skilled in the art can understand that, in the foregoing technical solutions of the present application, the airflow guiding member is defined with the damper cavity, the first air inlet channel and the first air outlet channel, the second air inlet channel and the second air outlet channel which respectively communicate with the damper cavity, the first air vent, the second air vent and the third air vent which are arranged on the peripheral wall of the damper cavity and used to communicate with the air adjusting device, and the rotary damper is installed in the damper cavity; the first air inlet channel and the first air outlet channel are used to communicate with the first fresh-keeping interval room, the second air inlet channel and the second air outlet channel are used to communicate with the second fresh-keeping interval room, and the rotary damper can be rotated to a position to shield the first air inlet channel, the first air outlet channel and the first air vent, so that one of the second air inlet channel and the second air outlet channel communicates with the second air vent and the other communicates with the third air vent, thereby enabling the air in the second fresh-keeping interval room to flow to the air adjusting device through the second air inlet channel, the second air outlet channel, the damper cavity, the second air vent and the third air vent, and enabling the air after being adjusted by the air adjusting device to flow back. Correspondingly, the rotary damper can be rotated to a position to shield the second air inlet channel, the second air outlet channel and the second air vent, so that one of the first air inlet channel and the first air outlet channel communicates with the first air vent and the other communicates with the third air vent; thereby enabling the air in the first fresh-keeping interval room to flow to the air adjusting device through the first air inlet channel, the damper cavity, the first air outlet channel, the first air vent and the third air vent, and enabling the air after being adjusted by the air adjusting device to flow back.
[0023] Therefore, the airflow guiding device of the present application can enable the fresh-keeping equipment to adjust the first fresh-keeping interval room and the second fresh-keeping interval room by the same air adjusting device, thereby overcoming the above problems in the prior art.
[0024] Other beneficial effects of the present application will be described in detail below with reference to the accompanying drawings, so that those skilled in the art can more clearly understand the improvement purposes, features and advantages of the present application. BRIEF DESCRIPTION OF DRAWINGS
[0025] In order to more clearly illustrate the technical solutions of the present application, some embodiments of the present application will be described below with reference to the accompanying drawings. Those skilled in the art should understand that the same components or parts indicated by the same reference numerals in different drawings are the same or similar; the drawings of the present application are not necessarily drawn to scale with each other.
[0026] In the drawings:
[0027] Figure 1 is a schematic block diagram of a fresh-keeping equipment provided by the present application;
[0028] Figure 2 is a structural exploded view (first perspective view) of an airflow guiding device in some embodiments of the present application;
[0029] Figure 3is a structural exploded view of the airflow guiding device in some embodiments of the present application (second perspective view);
[0030] Figure 4 is an isometric view of the airflow guiding device in some embodiments of the present application (first perspective view);
[0031] Figure 5 is an isometric view of the airflow guiding device in some embodiments of the present application (second perspective view);
[0032] Figure 6 is Figure 4 is a sectional view of the airflow guiding member along the A-A direction in some embodiments of the present application;
[0033] Figure 7 is Figure 6 is an isometric view of the airflow guiding member in some embodiments of the present application;
[0034] Figure 8 is Figure 4 is a sectional view of the airflow guiding device along the A-A direction in some embodiments of the present application (first fresh-keeping compartment atmosphere);
[0035] Figure 9 is Figure 4 is a sectional view of the airflow guiding device along the A-A direction in some embodiments of the present application (second fresh-keeping compartment atmosphere). DETAILED DESCRIPTION
[0036] It should be understood by those skilled in the art that the embodiments described below are only a part of the embodiments of the present application, not all embodiments of the present application, and are intended to explain the technical principles of the present application, not to limit the protection scope of the present application. Based on the embodiments provided by the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor shall fall within the protection scope of the present application.
[0037] It should be noted that in the description of the present application, the terms "center", "upper", "lower", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer", and other terms indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0038] Further, it needs to be explained that in the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense and for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, and can also be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. For example, the terms "mounting", "connection", "connecting" and "fixing" can be bolted connection, screw connection, welding, insertion, riveting, fusion, clamping, etc. Any feasible connection form can be specifically described.
[0039] In addition, it needs to be explained that in the description of the present application, the terms "cold" and "heat" are two descriptions of the same physical state. That is, the higher the "cold" of a certain target (such as an evaporator, air, a condenser, etc.) has, the lower the "heat" it has, and the lower the "cold" it has, the higher the "heat" it has. A certain target absorbs "cold" while releasing "heat", and releases "cold" while absorbing "heat". A certain target preserves "cold" or "heat" to keep the target at the current temperature. "Refrigeration" and "heat absorption" are two descriptions of the same physical phenomenon, that is, a certain target (such as an evaporator) absorbs heat while refrigerating.
[0040] In the present application, the fresh-keeping device can be a refrigerator. The refrigerator is a refrigerator in a broad sense, which not only includes the commonly said refrigerator in a narrow sense, but also includes fresh-keeping devices with refrigeration and / or freezing functions, such as refrigerated cabinets, freezers, etc.
[0041] As shown in FIG. 1, Figure 1 In the present application, the fresh-keeping device includes a cabinet 100, a gas regulation device 200 and an air flow guiding device 300.
[0042] The cabinet 100 defines a first fresh-keeping chamber 101 and a second fresh-keeping chamber 102, which are used to place food materials. In the present application, the number of the first fresh-keeping chamber 101 and the second fresh-keeping chamber 102 can be one, two, three or any other feasible number.
[0043] It needs to be explained that in the present application, the cabinet 100 can also define other fresh-keeping chambers to meet the user's needs for more fresh-keeping and storage of food materials.
[0044] Further, the cabinet 100 can also define a gas regulation space 103 for arranging the gas regulation device 200.
[0045] The gas conditioning device 200 is used to adjust the oxygen concentration in the gas conditioning space 103 through electrochemical reaction. For details, please refer to the background technology section.
[0046] Continue reading Figure 1 The gas conditioning device 200 includes a housing 210, a cathode plate 220, and an anode plate 230. The housing 210 has openings 31101 (not shown) on opposite sides thereof. A cathode plate 220 is disposed at each opening 31101, so that the housing 210 and the cathode plate 220 together define a cavity for accommodating the electrolyte.
[0047] In addition, in other embodiments of the present invention, those skilled in the art may also provide an opening 31101 (not shown in the figures) for arranging the cathode plate 220 only on one side of the housing 210 as needed.
[0048] Alternatively, in other embodiments of the present invention, those skilled in the art may also interchange the positions of the anode plate 230 and the cathode plate 220 described above as needed.
[0049] Furthermore, although not shown in the figures, the housing 210 is also provided with an exhaust port, which is used to discharge the oxygen generated by the gas conditioning device 200 to the outside.
[0050] In addition, in other embodiments of the present invention, those skilled in the art may also, as needed, omit the provision of the atmosphere-controlled space 103 on the box body 100, and enable the atmosphere-controlled device 200 to further include an outer shell provided on the outside of the shell 210, so that the atmosphere-controlled device 200 defines an oxygen-controlled space through the outer shell, and enable the cathode plate 220 or the anode plate 230 exposed on the surface of the shell 210 to serve as part of the oxygen-controlled space.
[0051] Alternatively, in other embodiments of the present invention, those skilled in the art may also, as needed, make the box body 100 and the atmosphere-conditioning device 200 jointly define the above-mentioned atmosphere-conditioning space 103, and make the cathode plate 220 or the anode plate 230 exposed on the surface of the shell 210 as part of the atmosphere-conditioning space 103.
[0052] Continue reading Figure 1 In the present invention, the air flow guiding device 300 is used to circulate air between the first fresh-keeping compartment 101 and / or the second fresh-keeping compartment 102 and the atmosphere control device 200, thereby adjusting the oxygen concentration in the first fresh-keeping compartment 101 and / or the second fresh-keeping compartment 102 with the help of the atmosphere control device 200.
[0053] Refer to the following Figures 2 to 9 The airflow guiding device 300 of the present invention is described with an example.
[0054] likeFigures 2 to 5 As shown, in some embodiments of the present invention, the airflow guiding device 300 includes an airflow guiding member 310, a rotary damper 320, a fan 340, and a drive device 350. The airflow guiding member 310 is used to connect the first fresh-keeping compartment 101, the second fresh-keeping compartment 102, and the air-conditioned space 103. The rotary damper 320 is rotatably mounted within the airflow guiding member 310, connecting one of the first fresh-keeping compartment 101 and the second fresh-keeping compartment 102 with the air-conditioned space 103. The fan 340 is mounted within the airflow guiding member 310, driving air circulation between the first fresh-keeping compartment 101 and the air-conditioned space 103, or between the second fresh-keeping compartment 102 and the air-conditioned space 103. The drive device 350 is drivingly connected to the rotary damper 320, driving the rotary damper 320 to rotate.
[0055] like Figure 6 and Figure 7 As shown, in some embodiments of the present invention, the airflow guiding member 310 defines a damper cavity 311 and a first air inlet channel 3121, a first air outlet channel 3122, a second air inlet channel 3131, and a second air outlet channel 3132, respectively connected to the damper cavity 311. The first air inlet channel 3121 and the first air outlet channel 3122 are each further connected to the first fresh-keeping compartment 101, and the second air inlet channel 3131 and the second air outlet channel 3132 are each further connected to the second fresh-keeping compartment 102. The peripheral wall of the damper cavity 311 is provided with a first vent 3141, a second vent 3142, and a third vent 3143, which are connected to the air conditioning device 200.
[0056] like Figure 8 and Figure 9 As shown, the rotary damper 320 is installed in the damper chamber 311. The rotary damper 320 can be rotated to a position that blocks the first air inlet channel 3121, the first air outlet channel 3122, and the first vent 3141, so that one of the second air inlet channel 3131 and the second air outlet channel 3132 is connected to the second vent 3142, and the other is connected to the third vent 3143. The rotary damper 320 can also be rotated to a position that blocks the second air inlet channel 3131, the second air outlet channel 3132, and the second vent 3142, so that one of the first air inlet channel 3121 and the first air outlet channel 3122 is connected to the first vent 3141, and the other is connected to the third vent 3143.
[0057] from Figure 6 and Figure 7 As can be seen in the figure, an axis hole 31102 is provided on the bottom wall of the damper chamber 311 so that the rotary damper 320 can be installed on the axis hole 31102.
[0058] Continue reading Figure 6 andFigure 7 The air flow guide member 310 further defines a fan cavity 315. A third vent 3143 is formed between the fan cavity 315 and the damper cavity 311 to communicate the fan cavity 315 with the damper cavity 311. A fourth vent 3144 is formed on a peripheral wall of the fan cavity 315 to communicate the fan cavity 315 with the air conditioning device 200.
[0059] As shown in Figure 8 and Figure 9 , the fan 340 is mounted in the fan cavity 315.
[0060] As shown in Figure 1 , Figure 2 , Figure 6 and Figure 7 , in some embodiments of the present application, the first vent 3141 and the second vent 3142 are formed on a bottom wall of the air inlet cavity 3111, the third vent 3143 is formed on a peripheral wall of the air outlet cavity 3112, and the fourth vent 3144 is formed on a bottom wall of the fan cavity 315.
[0061] In addition, in other embodiments of the present application, the first vent 3141 and the second vent 3142 can be formed on the cover plate 331 of the partition member 330 shielding the air inlet cavity 3111, and the fourth vent 3144 can be formed on a top wall of the fan cavity 315, according to the needs of those skilled in the art.
[0062] Continuing to refer to Figure 8 and Figure 9 , in some embodiments of the present application, the partition member 330 divides the damper cavity 311 into an air inlet cavity 3111 and an air outlet cavity 3112. The air inlet cavity 3111 is in communication with the first air inlet passage 3121 and the second air inlet passage 3131, respectively, and the air outlet cavity 3112 is in communication with the first air outlet passage 3122 and the second air outlet passage 3132, respectively.
[0063] Continuing to refer to Figure 6 and Figure 7 , in some embodiments of the present application, in the X direction, the first air inlet passage 3121, the first air outlet passage 3122, the second air inlet passage 3131 and the second air outlet passage 3132 are located on one side of the damper cavity 311, and the fan cavity 315 is located on the other side of the damper cavity 311, so that the air flow guide member 310 is a flat member in the shape of a strip as a whole. In the Y direction, the first air outlet passage 3122, the second air outlet passage 3132, the first air inlet passage 3121 and the second air inlet passage 3131 are distributed in sequence, so that the first air inlet passage 3121 and the first air outlet passage 3122 are respectively away from one end of the damper cavity 311 as Figure 2 , Figure 4 , Figure 6 and Figure 7As shown in FIG. 3, the second air inlet passage 3131 and the second air outlet passage 3132 are located on one side of the airflow guiding member 310; and each of the second air inlet passage 3131 and the second air outlet passage 3132 is away from one end of the air door cavity 311. Figures 2 to 5 As shown in FIG. 3, the second air inlet passage 3131 and the second air outlet passage 3132 are located on one side of the airflow guiding member 310; and each of the second air inlet passage 3131 and the second air outlet passage 3132 is away from one end of the air door cavity 311.
[0064] Referring back to FIG. 3, Figure 2 and Figure 3 The rotating air door 320 comprises a rotating disc 321 and a plurality of shielding structures 322 which are spaced apart along the circumference of the rotating disc 321.
[0065] The shielding structures 322 extend in the axial direction of the rotating disc 321 away from the rotating disc 321, and the shielding structures 322 are configured to shield the first air inlet passage 3121, the first air outlet passage 3122, the second air inlet passage 3131 and the second air outlet passage 3132.
[0066] The rotating disc 321 is provided with a plurality of avoiding holes 3211 which are spaced apart along the circumference of the rotating disc 321, and the avoiding holes 3211 are configured to avoid the first air vent 3141 and the second air vent 3142, so as to align at least one of the plurality of avoiding holes 3211 with the other one of the first air vent 3141 and the second air vent 3142 when one of the first air vent 3141 and the second air vent 3142 is shielded by the rotating disc 321 (as shown in FIG. 3). Figure 8 and Figure 9
[0067] As shown in FIG. 3, Figure 3 and Figure 7 The rotating air door 320 further comprises a rotating shaft 323 which is located on the side of the rotating disc 321 away from the shielding structures 322, and the rotating shaft 323 is matched with the shaft hole 3102 on the airflow guiding member 310. In the assembled state of the airflow guiding device 300, the rotating shaft 323 is rotatably embedded in the shaft hole 3102.
[0068] As shown in FIG. 3, Figure 2 , Figure 3 , Figure 8 and Figure 9 In some embodiments of the present application, the shielding structures 322 can be provided as arc-shaped plates, so as to ensure that the shielding structures 322 are matched with the circumferential wall of the air door cavity 311, and are capable of shielding the first air inlet passage 3121, the first air outlet passage 3122, the second air inlet passage 3131 and the second air outlet passage 3132 which are respectively close to one end of the air door cavity 311.
[0069] As shown in FIG. 3, Figure 8 and Figure 9 The gap 301 is configured to ensure that the rotating air door 320 can rotate normally.
[0070] As shown in FIG. 3, Figure 2 andFigure 3 As shown in some embodiments of the present application, the air door cavity 311 is provided with an opening 31101 on the side wall away from the rotating disc 321, through which the rotating air door 320 is installed into the air door cavity 311.
[0071] As shown in some embodiments of the present application, the partition member 330 is provided with a cover plate 331 which is adapted to the opening 31101, so that the cover plate 331 covers the opening 31101. Moreover, the partition member 330 is fixedly connected to the airflow guiding member 310 through the cover plate 331, which can be any feasible form such as bonding, screwing, screwing, clamping, etc. Figures 2 to 4
[0072] Further, although not shown in the drawings, a person skilled in the art can set an opening on the top side of the fan cavity 315 as needed, through which the fan 340 is installed into the fan cavity 315. At the same time, a cover is provided for the opening to cover the fan cavity 315.
[0073] Alternatively, a person skilled in the art can make the fourth air vent 3144 large enough to install the fan 340 into the fan cavity 315 through the fourth air vent 3144.
[0074] Referring back to Figure 2 , Figure 3 and Figure 5 As shown in some embodiments of the present application, the driving device 350 includes a motor 351 and a gear set 352, the motor 351 is drivingly connected to the gear set 352, and the gear set 352 is fixedly connected to the rotating shaft 323 on the rotating air door 320 in a circumferential direction to drive the rotating air door 320 to rotate synchronously. Exemplarily, the rotating shaft 323 is provided with a flat shaft, and one gear of the gear set 352 is provided with a flat hole, and the flat shaft is inserted into the flat hole.
[0075] Alternatively, a person skilled in the art can omit the gear set 352 in the driving device 350 as needed, and directly fix the motor 351 to the rotating shaft 323 on the rotating air door 320.
[0076] Further, in the present application, the motor 351 can be fixedly connected to the airflow guiding member 310 or the box body 100.
[0077] In addition, in other embodiments of the present application, a person skilled in the art can omit the fan cavity 315, the fourth air vent 3144 and the fan 340 as needed, and make the third air vent 3143 directly communicate with the air conditioning space 103 through the air path. Then, a fan 340 is arranged in the air conditioning space 103 or in the air path.
[0078] Further, in other embodiments of the present application, the skilled in the art can also omit the setting of the driving device 350 as needed, and configure a separate driving device 350 for the air flow guiding device 300 when the air flow guiding device 300 is installed on the fresh-keeping equipment.
[0079] The working principle of the air flow guiding device 300 in the present application will be described in detail below with reference to Figure 1 、 Figure 8 and Figure 9 .
[0080] As shown in Figure 1 and Figure 8 , when the first fresh-keeping compartment 101 is subjected to air conditioning by the air conditioning device 200, the rotary damper 320 is turned to a position shielding the second air inlet passage 3131, the second air outlet passage 3132 and the second air vent 3142, so as to make the first air inlet passage 3121 communicate with the first air vent 3141 and make the first air outlet passage 3122 communicate with the third air vent 3143. At this time, the air flow path in the air flow guiding device 300 is shown by the dotted line in Figure 8 . Under the driving of the fan 340, the air circulates along the following path: the first fresh-keeping compartment 101 → the first air inlet passage 3121 → the air inlet cavity 3111 → the escape hole 3211 → the first air vent 3141 → the air conditioning space 103 → the fourth air vent 3144 → the fan cavity 315 → the third air vent 3143 → the first air outlet passage 3122 → the first fresh-keeping compartment 101.
[0081] As shown in Figure 1 and Figure 9 , when the second fresh-keeping compartment 102 is subjected to air conditioning by the air conditioning device 200, the rotary damper 320 is turned to a position shielding the first air inlet passage 3121, the first air outlet passage 3122 and the first air vent 3141, so as to make the second air inlet passage 3131 communicate with the second air vent 3142 and make the second air outlet passage 3132 communicate with the third air vent 3143. At this time, the air flow path in the air flow guiding device 300 is shown by the dotted line in Figure 9 . Under the driving of the fan 340, the air circulates along the following path: the second fresh-keeping compartment 102 → the second air inlet passage 3131 → the air inlet cavity 3111 → the escape hole 3211 → the second air vent 3142 → the air conditioning space 103 → the fourth air vent 3144 → the fan cavity 315 → the third air vent 3143 → the second air outlet passage 3132 → the second fresh-keeping compartment 102.
[0082] When the air circulates along the two paths, the oxygen concentration in the air-conditioning space 103 is reduced or increased by the air-conditioning device 200, thereby reducing or increasing the oxygen concentration in the air in the entire path. After the air circulates for a period of time, the oxygen concentration in the first fresh-keeping compartment 101 or the second fresh-keeping compartment 102 is reduced or increased accordingly.
[0083] Based on the foregoing description, those skilled in the art can understand that the fresh-keeping device with the air flow guiding device 300 described above can selectively oxygenate the first fresh-keeping compartment 101 or the second fresh-keeping compartment 102, thereby realizing the function of simultaneously oxygenating multiple fresh-keeping compartments by the air-conditioning device 200.
[0084] Further, the air flow guiding member 310, as a whole member, defines the air door cavity 311, the first air inlet passage 3121, the first air outlet passage 3122, the second air inlet passage 3131, the second air outlet passage 3132, and the fan cavity 315, and can be manufactured by injection molding or the like, thereby being more compact and lower in cost.
[0085] So far, the technical solutions of the present application have been described in combination with the foregoing embodiments, but those skilled in the art can easily understand that the protection scope of the present application is not limited to these specific embodiments. Those skilled in the art can split and combine the technical solutions in the foregoing embodiments, or make equivalent changes or replacements to the related technical features, without departing from the technical principles of the present application, and any changes, equivalent replacements, improvements, etc. made within the technical concept and / or technical principles of the present application will fall within the protection scope of the present application.
[0086] Finally, it should be noted that the refrigerator of the present application is a refrigerator in a broad sense, which includes not only the refrigerator in a narrow sense as commonly understood, but also fresh-keeping devices with refrigeration and / or freezing functions, such as refrigerators, freezers, etc.
[0087] In the present application, the term "communication" means fluid communication to allow fluid (e.g. air, liquid) to flow between two things in communication with each other. And the "communication" can be fluid flow between two things in communication with each other without leakage, or fluid flow between two things in communication with each other with a little leakage.
Claims
1. An air flow guiding device for a fresh keeping apparatus, the fresh keeping apparatus comprising a cabinet defining a first fresh keeping compartment and a second fresh keeping compartment, and a gas regulating device for regulating oxygen concentration by electrochemical reaction. The airflow guiding device comprises: an airflow guiding member, which defines a damper cavity, and a first air inlet channel, a first air outlet channel, a second air inlet channel and a second air outlet channel respectively communicated with the damper cavity, the first air inlet channel and the first air outlet channel being further used for communicating the first fresh-keeping compartment, and the second air inlet channel and the second air outlet channel being further used for communicating the second fresh-keeping compartment; a first air vent, a second air vent and a third air vent for communicating with the modified atmosphere device are arranged on the peripheral wall of the damper cavity; a rotary damper installed in the damper cavity, the rotary damper being capable of rotating to a position for shielding the first air inlet channel, the first air outlet channel and the first air vent, so as to make one of the second air inlet channel and the second air outlet channel communicated with the second air vent and the other communicated with the third air vent; the rotary damper is also capable of rotating to a position for shielding the second air inlet channel, the second air outlet channel and the second air vent, so as to make one of the first air inlet channel and the first air outlet channel communicated with the first air vent and the other communicated with the third air vent.
2. The airflow guiding device for the fresh-keeping equipment according to claim 1, further comprising a partition member, the partition member separating the damper cavity into an air inlet cavity and an air outlet cavity; the air inlet cavity being respectively communicated with the first air inlet channel and the second air inlet channel, the air outlet cavity being respectively communicated with the first air outlet channel and the second air outlet channel.
3. The airflow guiding device for the fresh-keeping equipment according to claim 2, wherein the first air vent and the second air vent are formed on the bottom wall of the air inlet cavity, the third air vent is formed on the peripheral wall of the air outlet cavity.
4. The airflow guiding device for the fresh-keeping equipment according to claim 3, wherein the rotary damper comprises a rotary disc and a plurality of shielding structures spaced along the periphery of the rotary disc, the shielding structures extend in the axial direction of the rotary disc away from the rotary disc, and are used for shielding the first air inlet channel, the first air outlet channel, the second air inlet channel and the second air outlet channel; a plurality of avoiding holes are arranged on the rotary disc and spaced along the periphery thereof, the avoiding holes being used for avoiding the first air vent and the second air vent, so as to make one of the first air vent and the second air vent aligned with at least one of the avoiding holes when the other is shielded by the rotary disc.
5. The airflow guiding device for the fresh-keeping equipment according to claim 4, wherein the shielding structures are arranged as arc-shaped plates; and / or a gap is formed between the partition member and the airflow guiding member for avoiding the shielding structures.
6. The airflow guiding device for the fresh-keeping equipment according to claim 4, wherein an opening is arranged on the side wall of the damper cavity away from the rotary disc, a cover plate is arranged on the partition member and matched with the opening, so as to shield the opening by the cover plate.
7. The airflow guiding device for the fresh-keeping equipment according to any one of claims 1 to 6, wherein the airflow guiding member further defines a fan cavity. The third air vent is formed between the fan cavity and the damper cavity to communicate the fan cavity and the damper cavity; A fourth air vent is formed on the peripheral wall of the fan cavity for communicating with the air conditioning device.
8. The air flow guiding device for the fresh-keeping apparatus according to claim 7, further comprising a fan installed in the fan cavity and / or a driving device drivingly connected with the rotary damper.
9. A fresh-keeping apparatus, comprising: a cabinet defining a first fresh-keeping compartment and a second fresh-keeping compartment; an air conditioning device; the air flow guiding device according to any one of claims 1 to 8 for circulating air between the first fresh-keeping compartment and / or the second fresh-keeping compartment and the air conditioning device to adjust the oxygen concentration in the first fresh-keeping compartment and / or the second fresh-keeping compartment by means of the air conditioning device.
10. The fresh-keeping apparatus according to claim 9, wherein the cabinet further defines an air conditioning space for arranging the air conditioning device, the air conditioning space being in fluid communication with the first air vent, the second air vent and the third air vent, respectively; and / or the fresh-keeping apparatus is a refrigerator.