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

Abstract

The invention 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 invention 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. The airflow guiding device comprises a shell, an air door module and a draught fan. An air inlet cavity, a flow dividing cavity communicating with the air inlet cavity, a first air outlet channel, a first air return channel, a second air outlet channel and a second air return channel are defined in the shell, wherein the first air outlet channel, the first air return channel, the second air outlet channel and the second air return channel communicate with the flow dividing cavity. The air door module is arranged in the flow dividing cavity and comprises an air outlet air door, an air return air door and a motor. The motor is used for driving the air outlet door and the air return door to rotate synchronously, so that the air outlet door and the air return door move to the position where the first air outlet channel and the first air return channel are blocked from communicating with the air inlet cavity or the position where the second air outlet channel and the second air return channel are blocked from communicating with the air inlet cavity. And the fan is arranged in the air inlet cavity. The technical problems are solved.

Description

Technical Field

[0001] This invention belongs to the technical field of food preservation equipment, specifically providing an airflow guiding device and a preservation device for food preservation equipment. Background Technology

[0002] Current food preservation equipment mainly includes refrigerators, freezers, and freezers, which primarily preserve food by lowering the temperature of the internal preservation compartments.

[0003] However, oxygen in the air is highly reactive and can still cause various spoilage reactions and deterioration in food. Oxygen destroys nutrients, pigments, flavor compounds, and other components of food through oxidation reactions. At the same time, oxygen is essential for the growth of aerobic microorganisms; under aerobic conditions, the spoilage reaction caused by microbial reproduction accelerates, leading to a shorter shelf life of food.

[0004] To overcome the aforementioned problems, some preservation equipment is also equipped with a controlled atmosphere device (CAD), which consumes oxygen within the preservation chamber, thereby reducing the oxygen content. Specifically, the CAD device includes a cathode, an anode, and an electrolyte filled between the cathode and anode. The CAD device contacts the air within the preservation chamber through the cathode, causing oxygen to undergo a reduction reaction at the cathode: O₂ + 2H₂O + 4e⁻. - →4OH - An oxidation reaction occurs at the anode, producing oxygen, i.e., 4OH⁻. - →O2 + 2H2O + 4e - This allows the controlled atmosphere device to regulate the oxygen concentration inside the preservation room.

[0005] However, existing controlled atmosphere devices in refrigeration equipment can only adjust the oxygen concentration in one refrigeration compartment. If it is necessary to adjust the oxygen concentration in multiple refrigeration compartments, a separate controlled atmosphere device needs to be installed for each compartment. This not only increases the cost of the refrigeration equipment but also takes up more space, resulting in a lower volumetric efficiency. Summary of the Invention

[0006] One object of the present invention is to provide an airflow guiding device and a preservation device for a preservation equipment, so as to solve the problem that the modified atmosphere device in the existing preservation equipment cannot provide modified atmosphere for multiple preservation compartments.

[0007] To achieve the above objectives, the present invention provides, in a first aspect, an airflow guiding device for a preservation device, the preservation device comprising a housing defining a first preservation chamber and a second preservation chamber, and a modified atmosphere device for adjusting oxygen concentration via an electrochemical reaction; the airflow guiding device comprises:

[0008] The housing defines an air inlet cavity, a diversion cavity communicating with the air inlet cavity, and a first air outlet channel, a first air return channel, a second air outlet channel, and a second air return channel respectively communicating with the diversion cavity. The air inlet cavity and the diversion cavity are respectively used to connect to the controlled atmosphere device. The first air outlet channel and the first air return channel are used to connect to the first fresh-keeping compartment. The second air outlet channel and the second air return channel are used to connect to the second fresh-keeping compartment.

[0009] The damper module is arranged in the diversion cavity and includes an air outlet damper, an air return damper and a motor that are linked together. The motor is used to drive the air outlet damper and the air return damper to rotate synchronously, so that the air outlet damper and the air return damper move to a position that blocks the first air outlet channel and the first air return channel from communicating with the air inlet cavity or blocks the second air outlet channel and the second air return channel from communicating with the air inlet cavity.

[0010] A fan is arranged inside the air inlet cavity to drive air into the air inlet cavity.

[0011] Optionally, the damper module further includes a fixed housing, and the motor is fixedly connected to the fixed housing; the fixed housing divides the diversion cavity into an air outlet area and a return air area that are not interconnected; the air outlet area is connected to the first air outlet channel and the second air outlet channel respectively, and the return air area is connected to the first return air channel and the second return air channel respectively; the air outlet damper is located in the air outlet area, and the air return damper is located in the return air area.

[0012] Optionally, the mounting housing includes a first side shell and a second side shell, which are fixedly connected and together define a mounting cavity for mounting the motor.

[0013] Optionally, the first side shell has an open air outlet cavity defined on the side away from the second side shell. The peripheral wall of the air outlet cavity is provided with a first damper outlet for connecting the air outlet cavity with the first air outlet channel and a second damper outlet for connecting the air outlet cavity with the second air outlet channel. The second side shell has an open air return cavity defined on the side away from the first side shell. The peripheral wall of the air return cavity is provided with a first damper return port for connecting the air return cavity with the first air return channel and a second damper return port for connecting the air return cavity with the second air return channel.

[0014] Optionally, the open sides of the air outlet cavity and the air return cavity each face the air inlet cavity; and / or, the first damper outlet and the second damper outlet are respectively located on two adjacent side walls of the air outlet cavity, and the first damper return port and the second damper return port are respectively located on two adjacent side walls of the air return cavity.

[0015] Optionally, sealing components are provided on opposite sides of the outlet air damper and the return air damper.

[0016] Optionally, the air inlet cavity is located on one side of the flow divider cavity in a first direction, and the first air outlet channel and the first air return channel are located on the other side of the flow divider cavity in the first direction; at least a portion of each of the first air outlet channel and the first air return channel is sequentially distributed in a second direction, the second direction being perpendicular to the first direction; the second air outlet channel and the second air return channel are located on the other side of the flow divider cavity in the first direction, and the second air outlet channel and the second air return channel are located on one side of the first air outlet channel and the first air return channel in a third direction, the third direction being perpendicular to the first direction and the second direction respectively.

[0017] Optionally, the housing is provided with an air inlet formed on the peripheral wall of the air inlet cavity and an air outlet formed on the peripheral wall of the diversion cavity, so that the air inlet cavity is connected to the air conditioning device through the air inlet, and the diversion cavity is connected to the air conditioning device through the air outlet.

[0018] In a second aspect, the present invention provides a food preservation device, comprising:

[0019] The container is limited to a first fresh-keeping compartment and a second fresh-keeping compartment;

[0020] Controlled atmosphere device;

[0021] The airflow guiding device according to any one of the first aspects is used to circulate air between the first and / or second fresh-keeping compartments and the controlled atmosphere device, thereby adjusting the oxygen concentration in the first and / or second fresh-keeping compartments by means of the controlled atmosphere device.

[0022] Optionally, the enclosure further defines a modified atmosphere space for arranging the modified atmosphere device, the modified atmosphere space being in fluid communication with the air inlet chamber and the air distribution chamber respectively; and / or, the preservation device is a refrigerator.

[0023] Based on the foregoing description, those skilled in the art will understand that in the aforementioned technical solution of the present invention, by defining an air inlet cavity, a diversion cavity communicating with the air inlet cavity, and a first air outlet channel, a first air return channel, a second air outlet channel, and a second air return channel respectively communicating with the diversion cavity, the housing can connect to the controlled atmosphere device through the air inlet cavity and the diversion cavity, connect to the first fresh-keeping compartment through the first air outlet channel and the first air return channel, and connect to the second fresh-keeping compartment through the second air outlet channel and the second air return channel. By arranging a damper module in the diversion cavity, and by having the damper module have a linked air outlet damper, an air return damper, and a motor, and by driving the air outlet damper and the air return damper to rotate synchronously, the air outlet damper and the air return damper can be moved to a position that blocks the communication between the first air outlet channel and the first air return channel and the air inlet cavity, so that the second air outlet channel and the second air return channel respectively connect to the second fresh-keeping compartment and connect to the controlled atmosphere device. This invention also enables the outlet and return air dampers to be moved to positions that block the connection between the second outlet and return air channels and the air inlet chamber, thereby connecting the first outlet and return air channels to the first preservation compartment and leading to the controlled atmosphere device. By arranging a fan within the air inlet chamber, the airflow guiding device, when the fan is operating, can control the state of the damper module to circulate air between the first and / or second preservation compartments and the controlled atmosphere device. This allows the oxygen concentration in both the first and second preservation compartments to be adjusted by the same controlled atmosphere device via the airflow guiding device.

[0024] Other beneficial effects of the present invention will be described in detail below with reference to the accompanying drawings, so that those skilled in the art can more clearly understand the improved objectives, features and advantages of the present invention. Attached Figure Description

[0025] To more clearly illustrate the technical solution of the present invention, some embodiments of the present invention will be described below with reference to the accompanying drawings. Those skilled in the art should understand that the same reference numerals may indicate the same or similar parts or components in different drawings; the drawings of the present invention are not necessarily drawn to scale.

[0026] In the attached image:

[0027] Figure 1 This is a schematic block diagram of a food preservation device provided by the present invention;

[0028] Figure 2 This is an exploded view (first perspective) of the airflow guiding device in some embodiments of the present invention;

[0029] Figure 3 This is an exploded view (second perspective) of the airflow guiding device in some embodiments of the present invention;

[0030] Figure 4These are isometric views (first perspective) of the airflow guiding device in some embodiments of the present invention;

[0031] Figure 5 These are isometric views (second perspective) of the airflow guiding device in some embodiments of the present invention;

[0032] Figure 6 This is the book Figure 5 A view of the airflow guiding device along the F direction;

[0033] Figure 7 yes Figure 6 Cross-sectional view of the airflow guiding device along the AA direction;

[0034] Figure 8 This is an exploded view (third-person perspective) of the damper module in some embodiments of the present invention;

[0035] Figure 9 This is an exploded view (fourth perspective) of the damper module in some embodiments of the present invention;

[0036] Figure 10 These are isometric views (third-person perspective) of the damper module in some embodiments of the present invention;

[0037] Figure 11 This is an isometric view (fourth perspective) of the damper module in some embodiments of the present invention;

[0038] Figure 12 yes Figure 6 Cross-sectional view of the airflow guiding device along the BB direction (controlled atmosphere of the first fresh-keeping compartment);

[0039] Figure 13 yes Figure 6 Cross-sectional view of the airflow guiding device along the CC direction (controlled atmosphere of the first preservation chamber);

[0040] Figure 14 yes Figure 6 Cross-sectional view of the airflow guiding device along the BB direction (controlled atmosphere in the second preservation chamber);

[0041] Figure 15 yes Figure 6 Cross-sectional view of the airflow guiding device along the CC direction (controlled atmosphere of the second preservation chamber).

[0042] Explanation of reference numerals in the attached figures:

[0043] 100. Cabinet body; 101. First fresh-keeping compartment; 102. Second fresh-keeping compartment; 103. Modified atmosphere space;

[0044] 200. Controlled atmosphere device; 210. Housing; 220. Cathode plate; 230. Anode plate;

[0045] 300. Airflow guiding device;

[0046] 310. Housing; 3101. Air inlet cavity; 3102. Flow distribution cavity; 31021. Air outlet zone; 31022. Air return zone; 3103. First air outlet duct; 3104. First air return duct; 3105. Second air outlet duct; 3106. Second air return duct; 3107. Air inlet; 3108. Air outlet; 311. Intermediate housing; 312. Top housing; 313. Bottom housing;

[0047] 320. Damper module; 321. Mounting housing; 3211. First side housing; 32111. Mounting column; 321101. Air outlet cavity; 321102. First damper outlet; 321103. Second damper outlet; 3212. Second side housing; 32121. Mounting hole; 321201. Return air cavity; 321202. First damper return port; 321203. Second damper return port; 32101. Mounting cavity; 322. Air outlet damper; 323. Return air damper; 324. Motor; 325. Sealing component; 326. Bolt; 327. Terminal block;

[0048] 330. Fan. Detailed Implementation

[0049] Those skilled in the art should understand that the embodiments described below are merely a part of the embodiments of the present invention, and not all of the embodiments of the present invention. These partial embodiments are intended to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by those skilled in the art without creative effort should still fall within the scope of protection of the present invention.

[0050] It should be noted that in the description of this invention, terms such as "center," "upper," "lower," "top," "bottom," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0051] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances. For example, unless otherwise specified, the terms "installation," "connection," "joining," and "fixing" can specifically refer to any feasible connection form such as bolted connections, screw connections, welding, insertion, riveting, fusion welding, and snap-fitting.

[0052] Furthermore, it should be noted that in the description of this invention, the terms "coldness" and "heat" are two descriptions of the same physical state. That is, the higher the "coldness" of a target object (e.g., evaporator, air, condenser, etc.), the lower its "heat," and vice versa. A target object absorbs "coldness" while releasing "heat," and releases "coldness" while absorbing "heat." A target object retains "coldness" or "heat" to maintain its current temperature. "Refrigeration" and "heat absorption" are two descriptions of the same physical phenomenon; that is, a target object (e.g., an evaporator) absorbs heat while refrigerating.

[0053] In this invention, the preservation device can be a refrigerator. The refrigerator is a refrigerator in a broad sense, which includes not only the refrigerator as commonly referred to in the narrow sense, but also preservation devices with refrigeration and / or freezing functions, such as refrigerators, freezers, etc.

[0054] like Figure 1 As shown, in this invention, the preservation equipment includes a housing 100, a controlled atmosphere device 200, and an airflow guiding device 300.

[0055] The container 100 includes a first preservation compartment 101 and a second preservation compartment 102, which are used to store food ingredients. In this invention, the number of each of the first preservation compartment 101 and the second preservation compartment 102 can be one, two, three, or any other feasible number.

[0056] It should be noted that, in this invention, the box 100 may also include other preservation compartments to meet users' needs for more food preservation and storage.

[0057] Furthermore, the enclosure 100 may also define a controlled atmosphere space 103 for arranging the controlled atmosphere device 200.

[0058] The controlled atmosphere device 200 is used to adjust the oxygen concentration in the controlled atmosphere space 103 through an electrochemical reaction, as detailed in the background section.

[0059] Continue reading Figure 1 The controlled atmosphere device 200 includes a housing 210, a cathode plate 220, and an anode plate 230. The housing 210 has openings (not shown in the figure) on opposite sides, and a cathode plate 220 is provided at each opening, so that the housing 210 and the cathode plate 220 together define a cavity for containing electrolyte.

[0060] Furthermore, in other embodiments of the present invention, those skilled in the art may, as needed, provide an opening for arranging the cathode plate 220 only on one side of the housing 210 (not shown in the figure).

[0061] Alternatively, in other embodiments of the present invention, those skilled in the art may, as needed, interchange the positions of the anode plate 230 and the cathode plate 220 described above.

[0062] Furthermore, although not shown in the figure, the housing 210 is also provided with an exhaust port, which is used to discharge the oxygen generated by the controlled atmosphere device 200 to the outside.

[0063] Furthermore, in other embodiments of the present invention, those skilled in the art may omit the modified atmosphere space 103 on the housing 100 as needed, and make the modified atmosphere device 200 further include a cover disposed on the outside of the housing 210, so that the modified atmosphere device 200 defines the oxygen regulation space through the cover, and make the cathode plate 220 or anode plate 230 exposed on the surface of the housing 210 part of the oxygen regulation space.

[0064] Alternatively, in other embodiments of the present invention, those skilled in the art may, as needed, have the housing 100 and the modified atmosphere device 200 jointly define the modified atmosphere space 103, and have the cathode plate 220 or anode plate 230 exposed on the surface of the housing 210 as part of the modified atmosphere space 103.

[0065] Continue reading Figure 1 In this invention, the airflow 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 controlled atmosphere device 200, thereby adjusting the oxygen concentration in the first fresh-keeping compartment 101 and / or the second fresh-keeping compartment 102 by means of the controlled atmosphere device 200.

[0066] The following reference Figures 2 to 15 The airflow guiding device 300 of the present invention will be illustrated by example.

[0067] like Figure 2 and Figure 3As shown, in some embodiments of the present invention, the airflow guiding device 300 includes a housing 310, a damper module 320, and a fan 330.

[0068] like Figures 2 to 5 As shown, the housing 310 defines an air inlet cavity 3101, a diversion cavity 3102 communicating with the air inlet cavity 3101, and a first air outlet channel 3103, a first air return channel 3104, a second air outlet channel 3105, and a second air return channel 3106 respectively communicating with the diversion cavity 3102. The air inlet cavity 3101 and the diversion cavity 3102 are respectively used to connect to the air conditioning device 200. The first air outlet channel 3103 and the first air return channel 3104 are used to connect to the first fresh-keeping compartment 101. The second air outlet channel 3105 and the second air return channel 3106 are used to connect to the second fresh-keeping compartment 102.

[0069] like Figure 2 , Figure 3 , Figure 6 and Figure 7 As shown, the damper module 320 is arranged in the diversion cavity 3102, and the damper module 320 is configured to connect at least one of the first air outlet channel 3103 and the second air outlet channel 3105 to the air inlet cavity 3101, and to allow at least one of the first return air channel 3104 and the second return air channel 3106 to reach the air conditioning device 200 via the diversion cavity 3102.

[0070] like Figures 2 to 7 As shown, the fan 330 is arranged inside the air inlet cavity 3101 to drive air into the air inlet cavity 3101.

[0071] When the airflow guiding device 300 of the present invention is installed on the preservation equipment, when the fan 330 is working, the state of the damper module 320 can be controlled to make the air circulate between the first preservation chamber 101 and / or the second preservation chamber 102 and the atmosphere control device 200, so that the oxygen concentration of the first preservation chamber 101 and / or the second preservation chamber 102 can be adjusted by the same atmosphere control device 200 with the help of the airflow guiding device 300.

[0072] like Figure 2 , Figure 3 and Figure 7 As shown, in some embodiments of the present invention, the air inlet cavity 3101 is located on one side of the diversion cavity 3102 in a first direction, and the first air outlet channel 3103 and the first air return channel 3104 are located on the other side of the diversion cavity 3102 in the first direction. At least a portion of each of the first air outlet channel 3103 and the first air return channel 3104 is sequentially distributed in a second direction, which is perpendicular to the first direction, such that the ends of the first air outlet channel 3103 and the first air return channel 3104 away from the diversion cavity 3102 are formed in... Figures 2 to 4 On the side wall of the housing 310 shown.

[0073] Furthermore, the second air outlet duct 3105 and the second return air duct 3106 are located on the other side of the diversion cavity 3102 in the first direction, that is, the second air outlet duct 3105 and the second return air duct 3106 are located on the same side of the diversion cavity 3102 in the first direction as the first air outlet duct 3103 and the first return air duct 3104.

[0074] Furthermore, the second air outlet duct 3105 and the second return air duct 3106 are located on one side of the first air outlet duct 3103 and the first return air duct 3104 in the third direction, and the third direction is perpendicular to the first direction and the second direction, respectively, so that the second air outlet duct 3105 and the second return air duct 3106, the first air outlet duct 3103 and the first return air duct 3104 are distributed in different spatial layers within the housing 310. In other words, in the third direction, the first air outlet duct 3103 and the first return air duct 3104 are located in one spatial layer within the housing 310, and the second air outlet duct 3105 and the second return air duct 3106 are located in another spatial layer within the housing 310.

[0075] The first direction is the X direction as shown in the figure, the second direction is the Y direction as shown in the figure, and the third direction is the Z direction as shown in the figure, and the first direction, the second direction and the third direction are perpendicular to each other.

[0076] Those skilled in the art will understand that by arranging the air inlet cavity 3101, the diversion cavity 3102, the first air outlet channel 3103, the first return air channel 3104, the second air outlet channel 3105, and the second return air channel 3106 in the housing 310 in the above-described distribution manner, the space utilization rate within the housing 310 is higher, the structure of the housing 310 is more compact, and the volume of the housing 310 is smaller while ensuring the same ventilation capacity.

[0077] like Figure 2 , Figure 3 , Figure 4 and Figure 7 As shown, in some embodiments of the present invention, the housing 310 is further provided with an air inlet 3107 formed on the peripheral wall of the air inlet cavity 3101 and an air outlet 3108 formed on the peripheral wall of the diversion cavity 3102, so that the air inlet cavity 3101 is connected to the air conditioning device 200 through the air inlet 3107, and the diversion cavity 3102 is connected to the air conditioning device 200 through the air outlet 3108.

[0078] Based on the above structure, those skilled in the art will understand that the fan 330 draws air from the controlled atmosphere device 200 (specifically the controlled atmosphere space 103) through the air inlet 3107, and the diversion chamber 3102 guides the air from the first fresh-keeping compartment 101 and / or the second fresh-keeping compartment 102 to the controlled atmosphere device 200 (specifically the controlled atmosphere space 103) through the air outlet 3108.

[0079] Go back and refer to Figure 2 and Figure 3 The housing 310 includes an intermediate housing 311, a top housing 312, and a bottom housing 313. The top housing 312 and the bottom housing 313 are respectively fixedly connected to the intermediate housing 311. This fixed connection can be any feasible method such as bolt connection 326, screw connection, bonding, or welding. Preferably, the joints between the top housing 312 and the bottom housing 313 and the intermediate housing 311 are sealed to prevent air leakage. This sealing can be achieved by adding a sealing strip or sealant between adjacent parts, or by sealing them together through a fixed connection.

[0080] The intermediate shell 311 and the bottom shell 313 together define at least one of the following: air inlet cavity 3101, flow divider cavity 3102, first air outlet channel 3103 and first return air channel 3104. The intermediate shell 311 and the top shell 312 together define at least one of the following: second air outlet channel 3105 and second return air channel 3106.

[0081] Furthermore, the ends of the first air outlet channel 3103 and the first return air channel 3104 that are away from the diversion cavity 3102 are both formed on the intermediate shell 311, and the ends of the second air outlet channel 3105 and the second return air channel 3106 that are away from the diversion cavity 3102 are both formed on the top shell 312.

[0082] Furthermore, the intermediate shell 311 and the bottom shell 313 can be as follows: Figure 2 and Figure 3 As shown, the air inlet cavity 3101, the diversion cavity 3102, the first air outlet channel 3103, and the first return air channel 3104 are collectively defined. Furthermore, the bottom shell 313 forms the bottom wall of the diversion cavity 3102, the first air outlet channel 3103, and the first return air channel 3104, and the bottom shell 313 can also form the bottom wall of the air inlet cavity 3101.

[0083] Furthermore, the intermediate shell 311 and the top shell 312, as Figure 2 and Figure 3As shown, a second air outlet passage 3105 and a second air return passage 3106 are jointly defined. A portion of each of the second air outlet passage 3105 and the second air return passage 3106 is formed between the intermediate housing 311 and the top housing 312, such that the top housing 312 constitutes the top wall of that portion of each of the second air outlet passage 3105 and the second air return passage 3106. Another portion of each of the second air outlet passage 3105 and the second air return passage 3106 is formed in the top housing 312, such that the opening at the end of each of the second air outlet passage 3105 and the second air return passage 3106 away from the air inlet cavity 3101 faces the air inlet cavity 3101.

[0084] Furthermore, in other embodiments of the present invention, those skilled in the art can also configure the housing 310 and its internal spatial structure in any other feasible form as needed. For example, the opening direction of the end of the second air outlet channel 3105 and the second return air channel 3106 away from the air inlet cavity 3101 can be parallel to a third direction. Another example is that the second air outlet channel 3105 and the second return air channel 3106, the first air outlet channel 3103 and the first return air channel 3104 can be located on the same layer in a third direction, and the opening of the end of the second air outlet channel 3105 and the second return air channel 3106 away from the air inlet cavity 3101 can be formed on the bottom shell 313. Yet another example is that the bottom shell 313 can be omitted, and when the airflow guiding device 300 is in use, the mounting plane of the airflow guiding device 300 can replace the bottom shell 313 to shield the air inlet cavity 3101, the diversion cavity 3102, the first air outlet channel 3103 and the first return air channel 3104.

[0085] The following reference Figures 7 to 11 The damper module 320 of the present invention will be described in detail below.

[0086] like Figures 7 to 9 As shown, in some embodiments of the present invention, the damper module 320 includes a fixed housing 321, an air outlet damper 322, a return air damper 323, and a motor 324. The air outlet damper 322, the return air damper 323, and the motor 324 are all mounted on the fixed housing 321. The air outlet damper 322 and the return air damper 323 are linked and respectively driven by the motor 324. The motor 324 drives the air outlet damper 322 and the return air damper 323 to rotate synchronously, so that the air outlet damper 322 and the return air damper 323 move to a position that blocks the communication between the first air outlet channel 3103 and the first return air channel 3104 and the air inlet cavity 3101, or blocks the communication between the second air outlet channel 3105 and the second return air channel 3106 and the air inlet cavity 3101.

[0087] Continue reading Figures 7 to 9 The motor 324 is fixedly connected to the fixed housing 321 to prevent the motor 324 from moving relative to the fixed housing 321.

[0088] like Figure 7 As shown, the fixed housing 321 divides the diversion cavity 3102 into two non-communicating air outlet zone 31021 and air return zone 31022. The air outlet zone 31021 is connected to the first air outlet channel 3103 and the second air outlet channel 3105, respectively. The air return zone 31022 is connected to the first air return channel 3104 and the second air return channel 3106, respectively. The air outlet damper 322 is located within the air outlet zone 31021 to control whether the first air outlet channel 3103 and the second air outlet channel 3105 are connected to the air outlet zone 31021. The air return damper 323 is located within the air return zone 31022 to control whether the first air return channel 3104 and the second air return channel 3106 are connected to the air return zone 31021.

[0089] like Figures 7 to 9 As shown, in some embodiments of the present invention, the fixed housing 321 includes a first side housing 3211 and a second side housing 3212, the first side housing 3211 and the second side housing 3212 being fixedly connected and together defining a mounting cavity 32101 for mounting the motor 324.

[0090] like Figure 8 and Figure 9 As shown, a fixing post 32111 is provided on the first side shell 3211, and a fixing hole 32121 is provided on the second side shell 3212. The fixing post 32111 and the fixing hole 32121 correspond one-to-one. The fixing post 32111 is provided with a threaded hole so that the bolt 326 can pass through the fixing hole 32121 and be tightened together with the fixing post 32111, thereby fixing the first side shell 3211 and the second side shell 3212.

[0091] In addition, those skilled in the art can also use any other feasible method to fix the first side shell 3211 and the second side shell 3212 together as needed, such as snap-fitting, bonding, clamping, riveting, etc.

[0092] Alternatively, those skilled in the art may, as needed, set the first side shell 3211 and the second side shell 3212 as a whole, and configure the mounting cavity 32101 with an opening for mounting the motor 324.

[0093] like Figures 7 to 11As shown, the side of the first side shell 3211 away from the second side shell 3212 may be provided with an open air outlet cavity 321101 to accommodate an air outlet damper 322. The peripheral wall of the air outlet cavity 321101 is provided with a first damper outlet 321102 for connecting the air outlet cavity 321101 with the first air outlet channel 3103 and a second damper outlet 321103 for connecting the air outlet cavity 321101 with the second air outlet channel 3105. The first air damper outlet 321102 and the second air damper outlet 321103 can be opened and blocked by the air outlet damper 322, so that by opening or blocking the first air damper outlet 321102, the air outlet cavity 321101 can be connected to or blocked from the first air outlet channel 3103; and by opening or blocking the second air damper outlet 321103, the air outlet cavity 321101 can be connected to or blocked from the second air outlet channel 3105.

[0094] Accordingly, a return air cavity 321201 with an opening can be provided on the side of the second side shell 3212 away from the first side shell 3211, so that the return air damper 323 can be arranged inside the return air cavity 321201. The peripheral wall of the return air cavity 321201 is provided with a first damper return port 321202 for connecting the return air cavity 321201 with the first return air channel 3104 and a second damper return port 321203 for connecting the return air cavity 321201 with the second return air channel 3106. The first air damper outlet 321102 and the second air damper outlet 321103 can be opened and blocked by the return air damper 323, so that by opening or blocking the first air damper outlet 321102, the return air damper 323 can connect or block the return air cavity 321201 with the first return air passage 3104; and by opening or blocking the second air damper outlet 321103, the return air damper 323 can connect or block the return air cavity 321201 with the second return air passage 3106.

[0095] from Figure 7 As can be seen, the open sides of both the air outlet cavity 321101 and the air return cavity 321201 face the air inlet cavity 3101, so that the air outlet cavity 321101 can receive air from the air inlet cavity 3101, and the air flowing out of the air return cavity 321201 can flow to the air outlet 3108, thereby reducing wind resistance.

[0096] In addition, those skilled in the art may, as needed, position the open side of at least one of the air outlet cavity 321101 and the air return cavity 321201 to any other feasible position, such as facing a direction perpendicular to the air inlet cavity 3101.

[0097] from Figures 8 to 11As shown, the first damper outlet 321102 and the second damper outlet 321103 are respectively located on two adjacent side walls of the air outlet cavity 321101, and the first damper return port 321202 and the second damper return port 321203 are respectively located on two adjacent side walls of the return air cavity 321201, so that the first damper outlet 321102, the second damper outlet 321103, the first damper return port 321202 and the second damper return port 321203 are adapted to the first air outlet channel 3103, the second air outlet channel 3105, the first return air channel 3104 and the second return air channel 3106.

[0098] Go back and refer to 8 and Figure 9 Each of the outlet damper 322 and the return damper 323 may be provided with a sealing member 325 on its opposite sides, so that the outlet damper 322 and the return damper 323 can seal the corresponding first damper outlet 321102, second damper outlet 321103, first damper return port 321202 and second damper return port 321203 through the sealing member 325.

[0099] The sealing component 325 can be any feasible component, such as a sheet-like gasket, an annular sealing ring, etc.

[0100] Furthermore, provided that the outlet damper 322 and the return damper 323 can be moved to positions that block the connection between the first outlet channel 3103 and the first return channel 3104 and the air inlet cavity 3101, and to positions that block the connection between the second outlet channel 3105 and the second return channel 3106 and the air inlet cavity 3101, those skilled in the art will understand that the fixed housing 321 can be omitted, and the outlet damper 322, the return damper 323 and the motor 324 can be directly mounted on the housing 310.

[0101] from Figure 8 and Figure 9 As can be seen from the above, in some embodiments of the present invention, the damper module 320 may further include bolts 326 for fixing the first side shell 3211 and the second side shell 3212 together, and a terminal block 327 for connecting the motor 324. The terminal block 327 is arranged in the mounting cavity 32101 and is used to connect to an externally mating terminal.

[0102] from Figure 2 , Figure 3 and Figure 7 As can be seen from this, in some embodiments of the present invention, the fan 330 is preferably a centrifugal fan 330.

[0103] In addition, those skilled in the art can also configure the fan 330 of the present invention as any other feasible fan 330 as needed, such as a vortex fan 330, an axial fan 330, a cross-flow fan 330, etc.

[0104] The following reference Figure 1 , Figures 12 to 15 The working principle of the airflow guiding device 300 of the present invention will be briefly explained below.

[0105] like Figure 1 , Figure 12 and Figure 13 As shown, when only the first fresh-keeping compartment 101 needs to be conditioned, the control motor 324 rotates the outlet damper 322 to the position that shields the second outlet air passage 3105, and rotates the return air damper 323 to the position that shields the second return air passage 3106. The control fan 330 is started so that the fan 330 drives the air to circulate along the following path: conditioned space 103 → air inlet 3107 → air outlet zone 31021 → first outlet air passage 3103 → first fresh-keeping compartment 101 → first return air passage 3104 → return air zone 31022 → air outlet 3108 → conditioned space 103.

[0106] Furthermore, those skilled in the art can also control the fan 330 to reverse as needed, so that the air circulates in the opposite direction to the aforementioned path. Alternatively, the fan 330 can be configured to circulate the air in the opposite direction to the aforementioned path.

[0107] like Figure 1 , Figure 14 and Figure 15 As shown, when only the second fresh-keeping compartment 102 needs to be conditioned, the control motor 324 rotates the outlet damper 322 to the position that blocks the first outlet air passage 3103, and rotates the return air damper 323 to the position that blocks the first return air passage 3104. The control fan 330 is started so that the fan 330 drives the air to circulate along the following path: conditioned space 103 → air inlet 3107 → air outlet zone 31021 → second outlet air passage 3105 → second fresh-keeping compartment 102 → second return air passage 3106 → return air zone 31022 → air outlet 3108 → conditioned space 103.

[0108] Furthermore, those skilled in the art can also control the fan 330 to reverse as needed, so that the air circulates in the opposite direction to the aforementioned path. Alternatively, the fan 330 can be configured to circulate the air in the opposite direction to the aforementioned path.

[0109] Furthermore, those skilled in the art can also, as needed, rotate the outlet damper 322 and the return damper 323 to the middle position so that air circulates simultaneously along the two paths mentioned above.

[0110] Those skilled in the art will understand that the oxygen in the controlled atmosphere space 103 undergoes a reduction reaction at the cathode plate 220 (see the background section of this invention for details), thereby reducing the oxygen content in the air. When air circulates along any of the aforementioned paths, the oxygen concentration in the air throughout the entire path is reduced, thereby reducing the oxygen content in the first preservation chamber 101 and / or the second preservation chamber 102, and thus achieving the controlled atmosphere function of the first preservation chamber 101 and / or the second preservation chamber 102.

[0111] The technical solutions of the present invention have been described in conjunction with several embodiments above. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is not limited to these specific embodiments. Without departing from the technical principles of the present invention, those skilled in the art can disassemble and combine the technical solutions in the above embodiments, and can also make equivalent changes or substitutions to related technical features. Any changes, equivalent substitutions, improvements, etc., made within the technical concept and / or technical principles of the present invention will fall within the scope of protection of the present invention.

[0112] Finally, it should be noted that in this invention, the term "connection" refers to fluid connectivity, allowing fluid (e.g., air, liquid) to flow between two interconnected entities. Furthermore, this "connection" can be either leak-free fluid flow between interconnected entities or fluid flow with slight leakage between interconnected entities.

Claims

1. An airflow guiding device for a preservation equipment, the preservation equipment comprising a housing defining a first preservation chamber and a second preservation chamber, and a modified atmosphere device for adjusting oxygen concentration by an electrochemical reaction. The airflow guiding device includes: The housing defines an air inlet cavity, a diversion cavity communicating with the air inlet cavity, and a first air outlet channel, a first air return channel, a second air outlet channel, and a second air return channel respectively communicating with the diversion cavity. The air inlet cavity and the diversion cavity are respectively used to connect to the controlled atmosphere device. The first air outlet channel and the first air return channel are used to connect to the first fresh-keeping compartment. The second air outlet channel and the second air return channel are used to connect to the second fresh-keeping compartment. The damper module is arranged in the diversion cavity and includes an air outlet damper, an air return damper and a motor that are linked together. The motor is used to drive the air outlet damper and the air return damper to rotate synchronously, so that the air outlet damper and the air return damper move to a position that blocks the first air outlet channel and the first air return channel from communicating with the air inlet cavity or blocks the second air outlet channel and the second air return channel from communicating with the air inlet cavity. A fan is arranged inside the air inlet cavity to drive air into the air inlet cavity.

2. The airflow guiding device according to claim 1, wherein, The damper module also includes a fixed housing, and the motor is fixedly connected to the fixed housing; The fixed shell divides the flow distribution cavity into an air outlet area and a return air area that are not connected to each other. The air outlet area is connected to the first air outlet channel and the second air outlet channel respectively, and the return air area is connected to the first return air channel and the second return air channel respectively. The air outlet damper is located within the air outlet zone, and the air return damper is located within the air return zone.

3. The airflow guiding device according to claim 2, wherein, The fixed housing includes a first side shell and a second side shell, which are fixedly connected and together define a mounting cavity for mounting the motor.

4. The airflow guiding device according to claim 3, wherein, The first side shell is provided with an open air outlet cavity on the side away from the second side shell. The peripheral wall of the air outlet cavity is provided with a first air damper outlet for connecting the air outlet cavity with the first air outlet channel and a second air damper outlet for connecting the air outlet cavity with the second air outlet channel. The second side shell has an open return air cavity on the side away from the first side shell. The peripheral wall of the return air cavity has a first damper return port for connecting the return air cavity with the first return air channel and a second damper return port for connecting the return air cavity with the second return air channel.

5. The airflow guiding device according to claim 4, wherein, The open sides of both the air outlet cavity and the air return cavity face the air inlet cavity; And / or, The first damper outlet and the second damper outlet are located on two adjacent side walls of the air outlet cavity, and the first damper return outlet and the second damper return outlet are located on two adjacent side walls of the air return cavity.

6. The airflow guiding device according to claim 1, wherein, The outlet air damper and the return air damper are each provided with sealing components on their respective opposite sides.

7. The airflow guiding device according to any one of claims 1 to 6, wherein, The air inlet cavity is located on one side of the flow divider cavity in the first direction, and the first air outlet channel and the first air return channel are located on the other side of the flow divider cavity in the first direction; At least a portion of each of the first air outlet duct and the first air return duct is sequentially distributed in a second direction, which is perpendicular to the first direction; The second air outlet duct and the second air return duct are located on the other side of the diversion cavity in the first direction. The second air outlet duct and the second air return duct are located on one side of the first air outlet duct and the first air return duct in a third direction, and the third direction is perpendicular to the first direction and the second direction, respectively.

8. The airflow guiding device according to claim 7, wherein, The housing is provided with an air inlet formed on the peripheral wall of the air inlet cavity and an air outlet formed on the peripheral wall of the flow distribution cavity, so that the air inlet cavity can be connected to the air conditioning device through the air inlet, and the flow distribution cavity can be connected to the air conditioning device through the air outlet.

9. A food preservation device, comprising: The container is limited to a first fresh-keeping compartment and a second fresh-keeping compartment; Controlled atmosphere 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 controlled atmosphere device, thereby adjusting the oxygen concentration in the first fresh-keeping compartment and / or the second fresh-keeping compartment by means of the controlled atmosphere device.

10. The preservation equipment according to claim 9, wherein, The enclosure further defines a controlled atmosphere space for arranging the controlled atmosphere device, the controlled atmosphere space being in fluid communication with the air inlet chamber and the flow distribution chamber, respectively; and / or The preservation device is a refrigerator.

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