Airflow guiding device for fresh-keeping equipment and fresh-keeping equipment

Abstract

The utility model belongs to the technical field of food fresh-keeping equipment, and particularly provides an airflow guiding device for fresh-keeping equipment and the fresh-keeping equipment. The utility model aims to solve the problem that the air conditioning device in the existing fresh-keeping equipment cannot carry out air conditioning on a plurality of fresh-keeping chambers. In order to achieve the purpose, the airflow guiding device comprises an airflow guiding component and a rotary air door. The airflow guiding component defines an air door cavity, a first air inlet channel, a first air outlet channel, a second air inlet channel and a second air outlet channel, wherein the first air inlet channel, the first air outlet channel, the second air inlet channel and the second air outlet channel are communicated with the air door cavity. A first ventilation opening, a second ventilation opening and a third ventilation opening are formed in the peripheral wall of the air door cavity and used for leading to the air adjusting device. The rotary air door can rotate to the position for shielding the first air inlet channel, the first air outlet channel and the first ventilation opening and the position for shielding the second air inlet channel, the second air outlet channel and the second ventilation opening. The utility model solves the technical problems.

Description

Technical Field

[0001] The utility model belongs to the technical field of food preservation equipment, and particularly provides an air flow guiding device for a preservation equipment and a preservation equipment. Background Art

[0002] The current preservation equipment mainly includes refrigerators, freezers, cold cabinets, etc., which mainly preserve the food materials inside by reducing the temperature of the internal preservation compartment.

[0003] However, the property of oxygen in the air is very active and can still cause various spoilage reactions and corruption of food. Oxygen participates in oxidation reactions to damage the nutrients, pigments, flavor substances and other components of food. At the same time, oxygen is also a necessary condition for the growth of aerobic microorganisms. Under aerobic conditions, the spoilage reaction rate caused by the reproduction of microorganisms accelerates, resulting in a shortened storage period of food.

[0004] To overcome the above problems, some preservation equipment is also equipped with a gas conditioning device to consume the oxygen in the preservation compartment through this gas conditioning device, thereby reducing the oxygen content in the preservation compartment. Specifically, the gas conditioning device includes a cathode, an anode and an electrolyte filled between the cathode and the anode. The gas conditioning device contacts the air in the preservation compartment through the cathode, so that oxygen undergoes a reduction reaction at the cathode, that is: O 2 +2H 2 O+4e - →4OH - . And an oxidation reaction occurs at the anode and oxygen is generated, that is: 4OH - →O 2 +2H 2 O+4e - . Thus, the gas conditioning device adjusts the oxygen concentration in the preservation compartment.

[0005] However, the gas conditioning device in the existing preservation equipment can only adjust the oxygen concentration in a single preservation compartment separately. If it is necessary to adjust the oxygen concentration in multiple preservation compartments, a gas conditioning device needs to be configured for each preservation compartment respectively. 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 lower volume ratio of the preservation equipment. Summary of the Utility Model

[0006] An object of the utility model is to provide an air flow guiding device for a preservation equipment and a preservation equipment to solve the problem that the gas conditioning device in the existing preservation equipment cannot perform gas conditioning for multiple preservation compartments.

[0007] To achieve the above object, in a first aspect, the present utility model provides an air flow guiding device for a fresh-keeping device. The fresh-keeping device includes a box body defining a first fresh-keeping compartment and a second fresh-keeping compartment, and an air-conditioning device for adjusting the oxygen concentration through an electrochemical reaction; the air flow guiding device includes:

[0008] An air flow guiding member defining an air door cavity and a first air inlet passage, a first air outlet passage, a second air inlet passage and a second air outlet passage respectively communicating with the air door cavity. The first air inlet passage and the first air outlet passage are also used to communicate with the first fresh-keeping compartment, and the second air inlet passage and the second air outlet passage are also used to communicate with the second fresh-keeping compartment; on the peripheral wall of the air door cavity, there are provided a first ventilation opening, a second ventilation opening and a third ventilation opening for leading to the air-conditioning device;

[0009] A rotary air door installed in the air door cavity. The rotary air door can rotate to a position where it shields the first air inlet passage, the first air outlet passage and the first ventilation opening, so that one of the second air inlet passage and the second air outlet passage communicates with the second ventilation opening, and the other communicates with the third ventilation opening; the rotary air door can also rotate to a position where it shields the second air inlet passage, the second air outlet passage and the second ventilation opening, so that one of the first air inlet passage and the first air outlet passage communicates with the first ventilation opening, and the other communicates with the third ventilation opening.

[0010] Optionally, the air flow guiding device further includes a separating member, and the separating member divides the air door cavity into an air inlet cavity and an air outlet cavity; the air inlet cavity communicates with the first air inlet passage and the second air inlet passage respectively, and the air outlet cavity communicates with the first air outlet passage and the second air outlet passage respectively.

[0011] Optionally, the first ventilation opening and the second ventilation opening are formed on the bottom wall of the air inlet cavity, and the third ventilation opening is formed on the peripheral wall of the air outlet cavity.

[0012] Optionally, the rotary air door includes a turntable and a plurality of shielding structures circumferentially spaced apart along the turntable. The shielding structures extend in a direction away from the turntable in the axial direction of the turntable. The shielding structures are used to shield the first air inlet passage, the first air outlet passage, the second air inlet passage and the second air outlet passage; a plurality of avoidance holes circumferentially spaced apart along the turntable are provided on the turntable. The avoidance holes are used to avoid the first ventilation opening and the second ventilation opening, so that when one of the first ventilation opening and the second ventilation opening is shielded by the turntable, the other is aligned with at least one of the plurality of avoidance holes.

[0013] Optionally, the shielding structure is provided as an arc-shaped plate; and / or, a gap for avoiding the shielding structure is formed between the separating member and the air flow guiding member.

[0014] Optionally, an opening is provided on a side wall of the air damper cavity away from the turntable, and a cover plate adapted to the opening is provided on the separating member so that the cover plate shields the opening.

[0015] Optionally, the air flow guiding member further defines a blower cavity; the third ventilation opening is formed between the blower cavity and the air damper cavity to communicate the blower cavity with the air damper cavity; a fourth ventilation opening for leading to the controlled atmosphere device is provided on the peripheral wall of the blower cavity.

[0016] Optionally, the air flow guiding device further includes a blower installed in the blower cavity and / or a driving device drivingly connected to the rotary air damper.

[0017] The present utility model provides a fresh-keeping device in a second aspect, including:

[0018] A box body defining a first fresh-keeping compartment and a second fresh-keeping compartment;

[0019] A controlled atmosphere device configured to adjust the oxygen concentration through an electrochemical reaction;

[0020] The air flow guiding device according to any one of the first aspect, the air flow guiding device being configured to circulate air between the first fresh-keeping compartment and / or the second fresh-keeping compartment and the controlled atmosphere device, so as to adjust the oxygen concentration in the first fresh-keeping compartment and / or the second fresh-keeping compartment by means of the controlled atmosphere device.

[0021] Optionally, the box body further defines a controlled atmosphere space for arranging the controlled atmosphere device, the controlled atmosphere space being in fluid communication with the first ventilation opening, the second ventilation opening and the third ventilation opening 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 solution of the present utility model, by making the air flow guiding member define an air damper cavity and a first air inlet channel, a first air outlet channel, a second air inlet channel, and a second air outlet channel that are respectively communicated with the air damper cavity, a first ventilation opening, a second ventilation opening, and a third ventilation opening for leading to the air conditioning device are arranged on the peripheral wall of the air damper cavity, and a rotary air damper is installed in the air damper cavity; by making the first air inlet channel and the first air outlet channel communicate with the first fresh-keeping compartment, and the second air inlet channel and the second air outlet channel communicate with the second fresh-keeping compartment, and making the rotary air damper capable of rotating to a position where the first air inlet channel, the first air outlet channel, and the first ventilation opening are blocked, so that one of the second air inlet channel and the second air outlet channel communicates with the second ventilation opening, and the other communicates with the third ventilation opening, so that the air in the second fresh-keeping compartment can flow to the air conditioning device through the second air inlet channel, the second air outlet channel, the air damper cavity, the second ventilation opening, and the third ventilation opening, and the air after being air-conditioned by the air conditioning device flows back. Correspondingly, by making the rotary air damper capable of rotating to a position where the second air inlet channel, the second air outlet channel, and the second ventilation opening are blocked, so that one of the first air inlet channel and the first air outlet channel communicates with the first ventilation opening, and the other communicates with the third ventilation opening; the air in the first fresh-keeping compartment can flow to the air conditioning device through the first air inlet channel, the air damper cavity, the first air outlet channel, the first ventilation opening, and the third ventilation opening, and the air after being air-conditioned by the air conditioning device flows back.

[0023] Therefore, the air flow guiding device of the present utility model can enable the fresh-keeping equipment to perform air conditioning on the first fresh-keeping compartment and the second fresh-keeping compartment through the same air conditioning device, overcoming the above problems in the prior art.

[0024] Other beneficial effects of the present utility model will be described in detail in combination with the accompanying drawings hereinafter, so that those skilled in the art can more clearly understand the improvement purpose, features, and advantages of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solution of the present utility model, some embodiments of the present utility model will be described hereinafter with reference to the accompanying drawings. Those skilled in the art should understand that the components or parts indicated by the same reference numerals in different drawings are the same or similar; the drawings of the present utility model are not necessarily drawn to scale with each other. In the drawings:

[0026] Figure 1 is a schematic block diagram of a fresh-keeping equipment provided by the present utility model;

[0027] Figure 2 is an exploded view of the structure of the air flow guiding device in some embodiments of the present utility model (first perspective);

[0028] Figure 3It is an exploded view of the air flow guiding device in some embodiments of the present utility model (second perspective);

[0029] Figure 4 It is an axonometric view of the air flow guiding device in some embodiments of the present utility model (first perspective);

[0030] Figure 5 It is an axonometric view of the air flow guiding device in some embodiments of the present utility model (second perspective);

[0031] Figure 6 is Figure 4 a cross-sectional view of the air flow guiding member along the A-A direction;

[0032] Figure 7 is Figure 6 an axonometric view of the air flow guiding member;

[0033] Figure 8 is Figure 4 a cross-sectional view of the air flow guiding device along the A-A direction (first fresh-keeping compartment air conditioning);

[0034] Figure 9 is Figure 4 a cross-sectional view of the air flow guiding device along the A-A direction (second fresh-keeping compartment air conditioning). Detailed implementation manners

[0035] Those skilled in the art should understand that the embodiments described below are only a part of the embodiments of the present utility model, rather than all the embodiments of the present utility model. This part of the embodiments is intended to explain the technical principle of the present utility model, rather than to limit the protection scope of the present utility model. Based on the embodiments provided by the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts should still fall within the protection scope of the present utility model.

[0036] It should be noted that in the description of the present utility model, the terms indicating directions or positional relationships such as "center", "upper", "lower", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description, rather than indicating or implying that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0037] Furthermore, it should be noted that in the description of the present utility model, unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can also be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. For example, without special description, the terms "installation", "connection", "coupling", and "fixing" can specifically be any feasible connection forms such as bolt connection, screw connection, welding, plugging, riveting, fusing, snap connection, etc.

[0038] In addition, it should be noted that in the description of the present utility model, the terms "cooling capacity" and "heating capacity" are two descriptions of the same physical state. That is, the higher the "cooling capacity" of a certain target object (such as an evaporator, air, condenser, etc.), the lower the "heating capacity", and the lower the "cooling capacity", the higher the "heating capacity". When a certain target object absorbs "cooling capacity", it will release "heating capacity", and when it releases "cooling capacity", it will absorb "heating capacity". A certain target object stores "cooling capacity" or "heating capacity" to keep the current temperature of the target object. "Refrigeration" and "heat absorption" are two descriptions of the same physical phenomenon, that is, a certain target object (such as an evaporator) will absorb heat while refrigerating.

[0039] In the present utility model, the fresh-keeping device can be a refrigerator. This 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.

[0040] As Figure 1 shown, in the present utility model, the fresh-keeping device includes a box body 100, an air-conditioning device 200, and an air flow guiding device 300.

[0041] Among them, the box body 100 defines a first fresh-keeping compartment 101 and a second fresh-keeping compartment 102, and the first fresh-keeping compartment 101 and the second fresh-keeping compartment 102 are used for placing food materials. In the present utility model, the number of the first fresh-keeping compartment 101 and the second fresh-keeping compartment 102 can be one, two, three, or any other feasible number.

[0042] It should be noted that in the present utility model, the box body 100 can also define other fresh-keeping compartments to meet the user's more fresh-keeping storage needs for food materials.

[0043] Furthermore, the box body 100 can also define an air-conditioning space 103 for arranging the air-conditioning device 200.

[0044] Among them, the gas conditioning device 200 is used to adjust the oxygen concentration in the gas conditioning space 103 through an electrochemical reaction. For details, please refer to the background art section.

[0045] Continuing to refer Figure 1 , the gas conditioning device 200 includes a housing 210, a cathode plate 220, and an anode plate 230. Among them, openings 31101 (not shown in the figure) are respectively provided on two opposite sides of the housing 210, and a cathode plate 220 is provided at each opening 31101, so that the housing 210 and the cathode plate 220 jointly define a cavity for accommodating the electrolyte.

[0046] In addition, in other embodiments of the present invention, those skilled in the art can also, as needed, only provide an opening 31101 (not shown in the figure) for arranging the cathode plate 220 on one side of the housing 210.

[0047] Or, in other embodiments of the present invention, those skilled in the art can also, as needed, interchange the positions of the anode plate 230 and the cathode plate 220 described above.

[0048] Furthermore, although not shown in the figure, an exhaust port is also provided on the housing 210, and this exhaust port is used to discharge the oxygen generated by the gas conditioning device 200 to the outside.

[0049] In addition, in other embodiments of the present invention, those skilled in the art can also, as needed, omit the setting of the gas conditioning space 103 on the box body 100, and make the gas conditioning device 200 further include a housing provided outside the housing 210, so that the gas conditioning device 200 defines an oxygen adjustment space through this housing, and makes the cathode plate 220 or the anode plate 230 exposed on the surface of the housing 210 be a part of this oxygen adjustment space.

[0050] Or, in other embodiments of the present invention, those skilled in the art can also, as needed, make the box body 100 and the gas conditioning device 200 jointly define the above-mentioned gas conditioning space 103, and make the cathode plate 220 or the anode plate 230 exposed on the surface of the housing 210 be a part of this gas conditioning space 103.

[0051] Continuing to refer Figure 1 , in the present invention, the air flow guiding device 300 is used to make air circulate between the first fresh-keeping compartment 101 and / or the second fresh-keeping compartment 102 and the gas conditioning device 200, so as to adjust the oxygen concentration in the first fresh-keeping compartment 101 and / or the second fresh-keeping compartment 102 by means of the gas conditioning device 200.

[0052] Next, with reference to Figures 2 to 9 an example will be given to illustrate the air flow guiding device 300 in the present invention.

[0053] As shown Figures 2 to 5 In some embodiments of the present utility model, as shown, the air flow guiding device 300 includes an air flow guiding member 310, a rotary damper 320, a fan 340, and a driving device 350. Among them, the air flow guiding member 310 is used to connect the first fresh-keeping chamber 101, the second fresh-keeping chamber 102, and the controlled atmosphere space 103. The rotary damper 320 is rotatably installed in the air flow guiding member 310 and is used to connect one of the first fresh-keeping chamber 101 and the second fresh-keeping chamber 102 to the controlled atmosphere space 103. The fan 340 is installed in the air flow guiding member 310 and is used to drive air to circulate between the first fresh-keeping chamber 101 and the controlled atmosphere space 103, or to drive air to circulate between the second fresh-keeping chamber 102 and the controlled atmosphere space 103. The driving device 350 is drivingly connected to the rotary damper 320 and is used to drive the rotary damper 320 to rotate.

[0054] As shown Figure 6 and Figure 7 In some embodiments of the present utility model, as shown in and, the air flow guiding member 310 defines a damper cavity 311 and a first air inlet passage 3121, a first air outlet passage 3122, a second air inlet passage 3131, and a second air outlet passage 3132 that are respectively communicated with the damper cavity 311. The first air inlet passage 3121 and the first air outlet passage 3122 are each further used to connect the first fresh-keeping chamber 101, and the second air inlet passage 3131 and the second air outlet passage 3132 are each further used to connect the second fresh-keeping chamber 102. On the peripheral wall of the damper cavity 311, there are provided a first ventilation opening 3141, a second ventilation opening 3142, and a third ventilation opening 3143 for leading to the controlled atmosphere device 200.

[0055] As shown Figure 8 and Figure 9 In some embodiments of the present utility model, as shown in and, the rotary damper 320 is installed in the damper cavity 311. The rotary damper 320 can rotate to a position where it shields the first air inlet passage 3121, the first air outlet passage 3122, and the first ventilation opening 3141, so that one of the second air inlet passage 3131 and the second air outlet passage 3132 is communicated with the second ventilation opening 3142, and the other is communicated with the third ventilation opening 3143. The rotary damper 320 can also rotate to a position where it shields the second air inlet passage 3131, the second air outlet passage 3132, and the second ventilation opening 3142, so that one of the first air inlet passage 3121 and the first air outlet passage 3122 is communicated with the first ventilation opening 3141, and the other is communicated with the third ventilation opening 3143.

[0056] As can be seen from Figure 6 and Figure 7 On the bottom wall of the damper cavity 311, there is provided a shaft hole 31102 so that the rotary damper 320 is installed on the shaft hole 31102.

[0057] Continue to refer toFigure 6 and Figure 7 The air flow guiding member 310 further defines a fan cavity 315. A third ventilation opening 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 ventilation opening 3144 leading to the air conditioning device 200 is provided on the peripheral wall of the fan cavity 315.

[0058] As Figure 8 and Figure 9 shown, the fan 340 is installed in the fan cavity 315.

[0059] From Figure 1 、 Figure 2 、 Figure 6 and Figure 7 it can be seen that in some embodiments of the present invention, the first ventilation opening 3141 and the second ventilation opening 3142 are formed on the bottom wall of the air inlet cavity 3111, the third ventilation opening 3143 is formed on the peripheral wall of the air outlet cavity 3112, and the fourth ventilation opening 3144 is formed on the bottom wall of the fan cavity 315.

[0060] In addition, in other embodiments of the present invention, those skilled in the art can also, according to needs, make the first ventilation opening 3141 and the second ventilation opening 3142 formed on the cover plate 331 of the partition member 330 that shields the air inlet cavity 3111, and make the fourth ventilation opening 3144 formed on the top wall of the fan cavity 315.

[0061] Continuing to refer to Figure 8 and Figure 9 , in some embodiments of the present invention, 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 respectively communicated with the first air inlet passage 3121 and the second air inlet passage 3131, and the air outlet cavity 3112 is respectively communicated with the first air outlet passage 3122 and the second air outlet passage 3132.

[0062] Continuing to refer to Figure 6 and Figure 7 , in some embodiments of the present invention, 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 guiding member 310 is a strip-shaped flat member 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 sequentially distributed, so that the ends of the first air inlet passage 3121 and the first air outlet passage 312 away from the damper cavity 311 are as Figure 2 、 Figure 4 、 Figure 6 and​Figure 7 As shown in [reference], it is located on one side of the air flow guiding member 310; one end of each of the second air inlet passage 3131 and the second air outlet passage 3132 is away from the damper chamber 311 as Figures 2 to 5 shown in [reference], and is located on one side of the air flow guiding member 310.

[0063] Referring back to Figure 2 and Figure 3 , the rotary damper 320 includes a turntable 321 and a plurality of shielding structures 322 that are circumferentially spaced apart along the turntable 321.

[0064] Among them, the shielding structure 322 extends in a direction away from the turntable 321 in the axial direction of the turntable 321, and the shielding structure 322 is used 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.

[0065] Among them, a plurality of avoidance holes 3211 are provided on the turntable 321 and are circumferentially spaced apart along it. The avoidance holes 3211 are used to avoid the first ventilation opening 3141 and the second ventilation opening 3142, so that when one of the first ventilation opening 3141 and the second ventilation opening 3142 is blocked by the turntable 321, the other is aligned with at least one of the plurality of avoidance holes 3211 (as Figure 8 and Figure 9 shown).

[0066] As Figure 3 and Figure 7 shown, the rotary damper 320 further includes a rotating shaft 323 located on the side of the turntable 321 away from the shielding structure 322. The rotating shaft 323 is matched with the shaft hole 31102 on the air flow guiding member 310. In the state where the air flow guiding device 300 is assembled, the rotating shaft 323 is rotatably inserted into the shaft hole 31102.

[0067] As Figure 2 , Figure 3 , Figure 8 and Figure 9 shown, in some embodiments of the present invention, the shielding structure 322 can be set as an arc-shaped plate to ensure that the shielding structure 322 matches the circumferential wall of the damper chamber 311 and can shield one end of each of 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 close to the damper chamber 311.

[0068] As Figure 8 and Figure 9 shown, a gap 301 for avoiding the shielding structure 322 is formed between the separating member 330 and the air flow guiding member 310. The gap 301 is used to ensure that the rotary damper 320 can rotate normally.

[0069] AsFigure 2 and Figure 3 As shown in Figure 3 , in some embodiments of the present utility model, an opening 31101 is provided on the side wall of the air damper cavity 311 away from the turntable 321, so that the rotary air damper 320 can be installed into the air damper cavity 311 through this opening 31101.

[0070] As Figures 2 to 4 shown, in some embodiments of the present utility model, a cover plate 331 adapted to the opening 31101 is provided on the separating member 330, so that the cover plate 331 covers the opening 31101. Moreover, the separating member 330 is also fixedly connected to the air flow guiding member 310 through this cover plate 331, and this fixed connection can be any feasible form such as bonding, screw connection, bolt connection, snap connection, etc.

[0071] Furthermore, although not shown in the figures, those skilled in the art can also, according to needs, provide an opening on the top side of the fan cavity 315 to install the fan 340 into the fan cavity 315 through this opening. Meanwhile, a cover body is configured for this opening to cover the fan cavity 315.

[0072] Alternatively, those skilled in the art can also, according to needs, make the fourth ventilation opening 3144 large enough to install the fan 340 into the fan cavity 315 through this fourth ventilation opening 3144.

[0073] Going back to refer to Figure 2 、 Figure 3 and Figure 5 shown, in some embodiments of the present utility model, 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 circumferentially fixedly connected to the rotating shaft 323 on the rotary air damper 320 to drive the rotary air damper 320 to rotate synchronously. Exemplarily, a flat shaft is provided on the rotating shaft 323, and a flat hole is provided on one of the gears of the gear set 352, and this flat shaft is inserted into the flat hole.

[0074] Alternatively, those skilled in the art can also, according to needs, omit the setting of the gear set 352 in the driving device 350 and directly fixedly connect the motor 351 to the rotating shaft 323 on the rotary air damper 320.

[0075] Furthermore, in the present utility model, the motor 351 can be fixedly connected to the air flow guiding member 310 or can be fixedly connected to the box body 100.

[0076] In addition, in other embodiments of the present utility model, those skilled in the art can also, as needed, omit the settings of the fan chamber 315, the fourth ventilation opening 3144, and the fan 340, and directly connect the third ventilation opening 3143 to the controlled atmosphere space 103 through an air path. Then, a fan 340 is provided inside the controlled atmosphere space 103 or in this air path.

[0077] Furthermore, in other embodiments of the present utility model, those skilled in the art can also, as needed, omit the setting of the driving device 350, and when the air flow guiding device 300 is installed on the preservation device, a separate driving device 350 is configured for the air flow guiding device 300.

[0078] The following refers to Figure 1 、 Figure 8 and Figure 9 to elaborate in detail on the working principle of the air flow guiding device 300 in the present utility model.

[0079] As Figure 1 and Figure 8 shown, when the controlled atmosphere device 200 performs controlled atmosphere on the first preservation compartment 101, the rotary damper 320 rotates to a position that shields the second air inlet passage 3131, the second air outlet passage 3132, and the second ventilation opening 3142, so that the first air inlet passage 3121 is communicated with the first ventilation opening 3141, and the first air outlet passage 3122 is communicated with the third ventilation opening 3143. At this time, the air flow path inside the air flow guiding device 300 is as shown by the dotted line in Figure 8 . Driven by the fan 340, the air circulates along the following path: the first preservation compartment 101 → the first air inlet passage 3121 → the air inlet chamber 3111 → the avoidance hole 3211 → the first ventilation opening 3141 → the controlled atmosphere space 103 → the fourth ventilation opening 3144 → the fan chamber 315 → the third ventilation opening 3143 → the first air outlet passage 3122 → the first preservation compartment 101.

[0080] As Figure 1 and Figure 9 shown, when the controlled atmosphere device 200 performs controlled atmosphere on the second preservation compartment 102, the rotary damper 320 rotates to a position that shields the first air inlet passage 3121, the first air outlet passage 3122, and the first ventilation opening 3141, so that the second air inlet passage 3131 is communicated with the second ventilation opening 3142, and the second air outlet passage 3132 is communicated with the third ventilation opening 3143. At this time, the air flow path inside the air flow guiding device 300 is as shown in Figure 9As shown by the dashed line. Driven by the fan 340, air circulates along the following path: the second fresh-keeping compartment 102 → the second air inlet channel 3131 → the air inlet cavity 3111 → the avoidance hole 3211 → the second air vent 3142 → the controlled atmosphere space 103 → the fourth air vent 3144 → the fan cavity 315 → the third air vent 3143 → the second air outlet channel 3132 → the second fresh-keeping compartment 102.

[0081] When air circulates along the above two paths, the concentration of oxygen in the controlled atmosphere space 103 is reduced or increased by the controlled atmosphere device 200, thereby reducing or increasing the concentration of oxygen in the air within 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 will correspondingly decrease or increase.

[0082] Based on the foregoing description, those skilled in the art can understand that the fresh-keeping equipment of the present utility model having the above airflow guiding device 300 can selectively adjust the oxygen content in the first fresh-keeping compartment 101 or the second fresh-keeping compartment 102, realizing the function of the controlled atmosphere device 200 to simultaneously adjust the oxygen content in multiple fresh-keeping compartments.

[0083] Furthermore, the airflow guiding member 310, as an integral member, defines the damper cavity 311, the first air inlet channel 3121, the first air outlet channel 3122, the second air inlet channel 3131, the second air outlet channel 3132, and the fan cavity 315, and can be prepared by injection molding or the like. It has a lighter structure, a more compact structure, and a lower cost.

[0084] So far, the technical solutions of the present utility model have been described in combination with multiple foregoing embodiments. However, those skilled in the art can easily understand that the protection scope of the present utility model is not limited to these specific embodiments. Without departing from the technical principle of the present utility model, those skilled in the art can split and combine the technical solutions in the above various embodiments, and can also make equivalent changes or substitutions to the relevant technical features. Any changes, equivalent substitutions, improvements, etc. made within the technical concept and / or technical principle of the present utility model will fall within the protection scope of the present utility model.

[0085] Finally, it should be noted that the refrigerator of the present utility model is a refrigerator in a broad sense, which not only includes the commonly referred to refrigerator in a narrow sense, but also includes fresh-keeping equipment with refrigeration and / or freezing functions, such as refrigerated cabinets, freezers, etc.

[0086] In the present utility model, the term "communicate" means fluid communication to allow a fluid (such as air, liquid) to flow between two components that communicate with each other. And this "communication" can be such that the fluid flows between the two components that communicate with each other without leakage, or it can be such that the fluid flows between the two components that communicate with each other with a little leakage.

Claims

1. An airflow guiding device for fresh-keeping equipment, characterized in that: The fresh-keeping device comprises a box body defining a first fresh-keeping compartment and a second fresh-keeping compartment, and an atmosphere-conditioning device for adjusting oxygen concentration through an electrochemical reaction; The airflow guiding device comprises: The airflow guiding member is defined with an air gate cavity and a first air inlet channel, a first air outlet channel, a second air inlet channel and a second air outlet channel respectively connected to the air gate cavity, wherein the first air inlet channel and the first air outlet channel are also used to connect to the first fresh-keeping compartment, and the second air inlet channel and the second air outlet channel are also used to connect to the second fresh-keeping compartment; the peripheral wall of the air gate cavity is provided with a first vent, a second vent and a third vent leading to the air conditioning device; A rotating damper is installed in the damper cavity, and the rotating damper can be rotated to a position covering the first air inlet channel, the first air outlet channel and the first vent, so that one of the second air inlet channel and the second air outlet channel is connected to the second vent, and the other is connected to the third vent; the rotating damper can also be rotated to a position covering the second air inlet channel, the second air outlet channel and the second vent, so that one of the first air inlet channel and the first air outlet channel is connected to the first vent, and the other is connected to the third vent.

2. The airflow guiding device for fresh-keeping equipment according to claim 1, characterized in that: Also included is a partition member, the partition member partitions the air door cavity into an air inlet cavity and an air outlet cavity; The air inlet cavity is communicated with the first air inlet channel and the second air inlet channel respectively. The air outlet cavity is communicated with the first air outlet channel and the second air outlet channel respectively.

3. The airflow guiding device for fresh-keeping equipment according to claim 2, characterized in that: The first vent and the second vent are formed on the bottom wall of the air inlet cavity. The third vent is formed on the peripheral wall of the air outlet cavity.

4. The airflow guiding device for fresh-keeping equipment according to claim 3, characterized in that: The rotary damper includes a rotating disk and a plurality of shielding structures spaced apart along the circumference of the rotating disk. The shielding structure extends in the axial direction of the rotating disk in a direction away from the rotating disk, and the shielding structure is used to shield the first air inlet channel, the first air outlet channel, the second air inlet channel, and the second air outlet channel; The turntable is provided with a plurality of avoidance holes spaced along its circumference, and the avoidance holes are used to avoid the first vent and the second vent so that when one of the first vent and the second vent is blocked by the turntable, the other one is aligned with at least one of the plurality of avoidance holes.

5. The airflow guiding device for fresh-keeping equipment according to claim 4, characterized in that: The shielding structure is configured as an arc-shaped plate; and / or, A gap is formed between the partition member and the airflow guiding member to avoid the shielding structure.

6. The airflow guiding device for fresh-keeping equipment according to claim 4, characterized in that: The side wall of the air door chamber away from the rotating disk is provided with an opening. The partition member is provided with a cover plate matched with the opening so that the cover plate covers the opening.

7. The airflow guiding device for fresh-keeping equipment according to any one of claims 1 to 6, characterized in that: The airflow guiding member further defines a fan cavity; The third vent is formed between the fan cavity and the damper cavity to connect the fan cavity and the damper cavity; A fourth vent leading to the air conditioning device is arranged on the peripheral wall of the fan chamber.

8. The airflow guiding device for fresh-keeping equipment according to claim 7, characterized in that: It also includes a fan installed in the fan cavity and / or a driving device drivingly connected to the rotary damper.

9. A fresh-keeping device, characterized in that: include: The box body is defined with a first fresh-keeping compartment and a second fresh-keeping compartment; Gas conditioning device; The airflow guiding device according to any one of claims 1 to 8, wherein the airflow guiding device is used to circulate air between the first fresh-keeping compartment and / or the second fresh-keeping compartment and the air conditioning device, thereby adjusting 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 device according to claim 9, characterized in that: The box body further defines an air conditioning space for arranging the air conditioning device, and the air conditioning space is fluidly connected to the first vent, the second vent and the third vent respectively; and / or, The fresh-keeping equipment is a refrigerator.

Images