Air duct module and refrigeration equipment

Abstract

The air duct module provided by the embodiment of the utility model comprises a shell and a switching air duct, wherein the switching air duct is detachably mounted on the shell. The shell is provided with an air outlet duct, and the switching air duct comprises a first cover plate, a second cover plate and a switching piece. The first cover plate, the second cover plate and the shell form a fixed cavity; the adapter is located in the fixing cavity and installed on the first cover plate, the adapter is provided with a transition air channel, and the transition air channel is used for communicating the air supply channel with the air outlet channel.

Description

Technical Field

[0001] This application belongs to the field of household appliance technology, and in particular relates to an air duct module and a refrigeration device. Background Technology

[0002] The refrigeration equipment has multiple air duct modules to supply air to different chambers. Each air duct module can be equipped with a set of refrigeration components to cool the gas, or the refrigeration component can be installed in only one air duct module, and this air duct can be connected to other air ducts to achieve air supply from one set of refrigeration components to multiple air duct modules. However, in related technologies, two air ducts are directly connected to each other to achieve air supply, but the air duct modules are relatively large, and direct connection is inconvenient. Utility Model Content

[0003] This application aims to solve, at least to some extent, the technical problems it addresses. To this end, this application provides an air duct module and a refrigeration device.

[0004] In a first aspect, embodiments of this application provide an air duct module, including:

[0005] The casing has an air outlet duct.

[0006] A transfer duct is detachably installed on the housing. The transfer duct includes a first cover plate and a second cover plate, and the first cover plate, the second cover plate and the housing form a fixed cavity.

[0007] An adapter is located inside the fixed cavity and installed on the first cover plate. The adapter has a transition air duct for connecting the supply air duct and the outlet air duct.

[0008] In the air duct module proposed in this application embodiment, since the adapter has a transition air duct for connecting the outlet air duct and the supply air duct, when connecting the outlet air duct and the supply air duct, the supply air duct and the outlet air duct can be connected respectively through the transition air duct to achieve the connection between the supply air duct and the outlet air duct. That is, during the connection process, there is no need to move the position of the entire air duct module. Only the position of the adapter air duct needs to be adjusted to make the supply air duct and the outlet air duct accurately connected, thereby greatly improving the convenience of connecting the supply air duct and the outlet air duct.

[0009] In some embodiments, the adapter includes an adapter body and a fixing plate disposed on the outer surface of the adapter body, the transition air duct is disposed on the adapter body, and the first cover plate is detachably connected to the fixing plate.

[0010] In some embodiments, the fixing plate includes a bottom plate, a top plate, and two side plates, the two side plates being disposed on both sides of the bottom plate, the top plate connecting the bottom plate and the two side plates, and the first cover plate contacting the top plate and the two side plates, and being detachably connected to the bottom plate.

[0011] In some embodiments, the transition duct further includes fasteners, the first cover plate is provided with a second connection hole, the bottom plate is provided with a second connection hole, and the fasteners pass through the first connection hole and the second connection hole.

[0012] In some embodiments, the base plate is provided with a mounting groove, and the second connecting hole is provided on the bottom surface of the mounting groove.

[0013] In some embodiments, the top plate is provided with a connecting port for connecting the transition air duct and the outlet air duct.

[0014] In some embodiments, the first cover plate is provided with a positioning boss, the adapter body is provided with a positioning groove, and the positioning boss is disposed in the positioning groove.

[0015] In some embodiments, the first cover plate is detachably connected to the housing, and the second cover plate is integrally formed with the housing.

[0016] In some embodiments, the air duct module further includes an odor removal module and an odor removal air duct disposed in the housing, the odor removal air duct being spaced apart from the air outlet duct, the adapter also having an odor removal mounting cavity communicating with the odor removal air duct and a return air outlet for communicating with the return air duct, the odor removal module being installed in the odor removal mounting cavity, wherein the odor removal mounting cavity is communicating with the return air outlet.

[0017] Secondly, embodiments of this application provide a refrigeration device, including a housing and the aforementioned air duct module. The housing has a chamber for containing items, the air duct module is installed in the housing, and the air outlet duct is used to supply air into the chamber.

[0018] The beneficial effects of the refrigeration equipment provided in the second aspect are the same as those of the air duct module provided in the first aspect, and will not be repeated here.

[0019] In some embodiments, the refrigeration device further includes a door, which is disposed at the opening of the chamber. The thickness of the door is 25mm to 40mm, and the total thickness of the housing and the door is 450mm to 600mm. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the refrigeration equipment is shown.

[0022] Figure 2 It shows Figure 1 A partial structural diagram.

[0023] Figure 3 It shows Figure 2 A schematic diagram of the stroke channel module.

[0024] Figure 4 It shows Figure 2 A sectional view.

[0025] Figure 5 It shows Figure 4 A magnified view of a portion of point A in the middle.

[0026] Figure 6 It shows Figure 3 A partial structural diagram of the transfer air duct.

[0027] Figure 7 It shows Figure 6 A schematic diagram of the intermediate connector.

[0028] Figure 8 It shows Figure 2 A cross-sectional view from another perspective.

[0029] Figure label:

[0030] 10-Refrigeration equipment, 100-Casing, 110-Air supply duct, 120-Evaporator, 130-Air intake component, 140-Cavity, 141-Refrigeration chamber, 142-Freezing chamber, 150-Return air duct, 160-Odor removal duct, 700-Door, 200-Duct module, 210-Shell, 220-Outlet air duct, 221-Outlet, 222-Return air inlet, 230-Inspection window, 300-Transfer air duct, 310-First cover plate, 3 11-First connecting hole, 312-Positioning boss, 320-Second cover plate, 321-Fixing cavity, 330-Adapter, 331-Transition air duct, 332-Adapter body, 333-Fixing plate, 3331-Bottom plate, 3332-Top plate, 3333-Side plate, 3334-Second connecting hole, 3335-Mounting groove, 3336-Connecting port, 334-Positioning groove, 337-Odor-neutralizing mounting cavity, 340-Fastener, 500-Odor-neutralizing module. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] It should be noted that all directional indications in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0035] The refrigeration equipment has multiple air duct modules to supply air to different chambers. Each air duct module can be equipped with a set of refrigeration components to cool the gas, or the refrigeration component can be installed in only one air duct module, and this air duct can be connected to other air ducts to achieve air supply from one set of refrigeration components to multiple air duct modules. However, in related technologies, two air ducts are directly connected to each other to achieve air supply, but the air duct modules are relatively large, and direct connection is inconvenient.

[0036] To address the problems existing in related technologies to some extent, this application provides an air duct module and a cooling device. During the docking process, there is no need to move the position of the supply air duct or the outlet air duct. Only the position of the transition air duct needs to be adjusted to make the supply air duct and the outlet air duct accurately connected, thereby greatly improving the convenience of docking the supply air duct and the outlet air duct.

[0037] This application is described below with reference to the accompanying drawings and specific embodiments:

[0038] Please see Figures 1-3 This application provides an air duct module 200 applied to a refrigeration device 10. The refrigeration device 10 has a supply air duct 110, and the air duct module 200 has an outlet air duct 220. Both the supply air duct 110 and the outlet air duct 220 are used to supply air to the chamber 140 of the refrigeration device 10. The air duct module 200 provided in this application embodiment allows for precise connection between the supply air duct 110 and the outlet air duct 220 without moving their positions during the connection process between the outlet air duct 220 and the supply air duct 110. Only the position of the transition air duct 300 needs to be adjusted, thus greatly improving the convenience of connecting the supply air duct 110 and the outlet air duct 220.

[0039] The refrigeration device 10 can be a freezer or a refrigerator. In this embodiment, for ease of description, a refrigerator is used as an example for illustrating the refrigeration device 10. The same principle applies when the refrigeration device 10 is another device.

[0040] The refrigeration device 10 is roughly rectangular. For ease of description, the height direction Z, width direction X, and thickness direction Y are defined. In the operating state of the refrigeration device 10, the vertical direction is the height direction Z, and the projection of the refrigeration device 10 in the vertical direction is a rectangle. The direction of the longer side is the width direction X, and the direction of the shorter side is the thickness direction Y.

[0041] Similarly, for ease of description, six directions are defined: up, down, left, right, front, and back. In the height direction Z, the direction closer to the top surface is up, and the direction further from the top surface is down. In the width direction X, the two directions are left and right. The chamber 140 of the refrigeration device 10 has an opening, and a door 700 is provided at the opening. In the thickness direction Y, the direction closer to the door 700 is front, and the direction further from the door 700 is back.

[0042] Please see Figure 4 and Figure 5In this embodiment, the air duct module 200 includes a housing 210 and a transition air duct 300, which is detachably mounted on the housing 210. The housing 210 has an outlet air duct 210, and the transition air duct 300 includes a first cover plate 310, a second cover plate 320, and a connector 330. The first cover plate 310, the second cover plate 320, and the housing 210 form a fixed cavity 321; the connector 330 is located within the fixed cavity 321 and is mounted on the first cover plate 310. The connector 330 has a transition air duct 331, which connects the supply air duct 110 and the outlet air duct 220.

[0043] Since the transition duct 331 is connected to the outlet duct 220 and the supply duct 110, cold air will be transferred between the outlet duct 220 and the supply duct 110. Therefore, the cold air will pass through the transition duct 331. In order to reduce the amount of cold air lost when passing through the transition duct 331, at least part of the adapter 330 needs to be made of heat insulation material such as foam. Therefore, the structure is relatively fragile. When used in the air duct module 200 of the refrigeration equipment 10, if the adapter 330 is exposed, it is easily damaged. Therefore, it needs to be protected by the first cover plate 310 and the second cover plate 320.

[0044] A fixed cavity 321 is formed between the first cover plate 310, the second cover plate 320, and the housing 210. The adapter 330 is located within the fixed cavity 321, so that the first cover plate 310, the second cover plate 320, and the housing 210 can jointly protect the adapter 330. The adapter 330 is installed on the first cover plate 310, that is, the adapter 330 is fixedly connected to the first cover plate 310, so that the position of the adapter 330 is fixed and not easy to move, so as to ensure the accuracy of the connection between the transition air duct 331 and the outlet air duct 220 and the supply air duct 110 as much as possible.

[0045] The transition duct 300 is detachably installed on the housing 210. Therefore, when installing the transition duct 300, first adjust its position so that the transition duct 331 aligns with the outlet duct 220 and the supply duct 110 respectively, thus connecting the outlet duct 220 and the supply duct 110. Then connect the transition duct 300 and the housing 210 to complete the installation of the transition duct 300. Of course, if the transition duct 300 shifts, resulting in a low alignment between the outlet duct 220 and the supply duct 110, the transition duct 300 can be disassembled and its position readjusted, thereby improving the convenience of connecting the outlet duct 220 and the supply duct 110.

[0046] In the air duct module 200 proposed in this application embodiment, since the adapter 330 has a transition air duct 331 for connecting the outlet air duct 220 and the supply air duct 110, when connecting the outlet air duct 220 and the supply air duct 110, the supply air duct 110 and the outlet air duct 220 can be connected through the transition air duct 331 respectively, so as to realize the connection between the supply air duct 110 and the outlet air duct 220. That is, during the connection process, there is no need to move the position of the entire air duct module 200, only the position of the adapter air duct 300 needs to be adjusted to make the supply air duct 110 and the outlet air duct 220 accurately connected, thereby greatly improving the convenience of connecting the supply air duct 110 and the outlet air duct 220.

[0047] Please see Figure 6 In some embodiments, the adapter 330 includes an adapter body 332 and a fixing plate 333 disposed on the outer surface of the adapter body 332, a transition air duct 331 disposed on the adapter body 332, and a first cover plate 310 detachably connected to the fixing plate 333.

[0048] Since the transition air duct 331 is located on the adapter body 332, the adapter body 332 is made of foam to reduce the amount of cold air lost when passing through the transition air duct 331. The fixing plate 333 is located on the outer surface of the adapter body 332. That is, the fixing plate 333 can be attached to, pressed against or connected to the outer surface of the adapter body 332. The fixing plate 333 can be located on the entire outer surface of the adapter body 332 or only on a part of the outer surface of the adapter body 332. There is no limitation on this.

[0049] Since the adapter 330 needs to be fixedly connected to the first cover plate 310, and the adapter body 332 made of foam is difficult to rigidly connect with the first cover plate 310, the first cover plate 310 and the fixing plate 333 are detachably connected. Since the fixing plate 333 is located on the outer surface of the adapter body 332, the first cover plate 310 and the fixing plate 333 are detachably connected, thus enabling the adapter 330 to be installed on the first cover plate 310.

[0050] Please see Figure 7 In some embodiments, the fixing plate 333 includes a bottom plate 3331, a top plate 3332 and two side plates 3333. The two side plates 3333 are respectively disposed on both sides of the bottom plate 3331. The top plate 3332 connects the bottom plate 3331 and the two side plates 3333. The first cover plate 310 contacts the top plate 3332 and the two side plates 3333, and is detachably connected to the bottom plate 3331.

[0051] The fixing plate 333 is fitted to the adapter 330. The two side plates 3333 are positioned opposite each other along the thickness direction, and the bottom plate 3331 is positioned opposite each other along the width direction. The top plate 3332 is positioned above the side plates 3333 and the bottom plate 3331. The bottom plate 3331, the top plate 3332, and the two side plates 3333 form a groove-shaped structure. The adapter body 332 is installed within the groove-shaped structure, which also provides further protection for the adapter body 332. Since the bottom plate 3331 is positioned opposite the first cover plate 310, the bottom plate 3331 and the first cover plate 310 are more easily connected, and the bottom plate 3331 and the first cover plate 310 can jointly clamp the adapter body 332, thus fixing the adapter body 332 in place.

[0052] Please see Figure 3 and Figure 6 In some embodiments, the transfer duct 300 further includes a fastener 340, the first cover plate 310 is provided with a first connection hole 311, the bottom plate 3331 is provided with a second connection hole 3334, and the fastener 340 passes through the first connection hole 311 and the second connection hole 3334.

[0053] Fastener 340 passes through the first connecting hole 311 and the second connecting hole 3334, thereby enabling the connection between the first cover plate 310 and the fixing plate 333. Specifically, the fastener 340 can be a bolt, and the first connecting hole 311 and the second connecting hole 3334 can both be threaded holes. The fastener 340 is screwed into the first connecting hole 311 and the second connecting hole 3334, thereby enabling the detachable connection between the first cover plate 310 and the base plate 3331.

[0054] Of course, since the fastener 340 needs to be installed on the first cover plate 310 and the base plate 3331, the fastener 340 needs to be misaligned with the adapter body 332 in order to avoid damaging the structure of the adapter body 332 and thus damaging the transition air duct 331.

[0055] Please see Figure 6 In some embodiments, the base plate 3331 is provided with a mounting groove 3335, and the second connecting hole 3334 is provided on the bottom surface of the mounting groove 3335.

[0056] Since the adapter 330 is located within the fixed cavity 321, the fastener 340 can extend from the second connecting hole 3334 into the first connecting hole 311, ensuring that the head of the fastener 340 is located within the fixed cavity 321, thus maintaining the aesthetic appearance of the adapter duct 300. Because the fixed cavity 321 has a limited width, the head of the fastener 340 would occupy some space. Therefore, a mounting groove 3335 is provided on the base plate 3331. The mounting groove 3335 is recessed inward, and the second connecting hole 3334 is located on the bottom surface of the mounting groove 3335. This ensures that the head of the fastener 340 is at least partially located within the mounting groove 3335, minimizing the space occupied by the head of the fastener outside the fixed plate 333.

[0057] Please see Figure 6 and Figure 7 In some embodiments, the top plate 3332 is provided with a connecting port 3336, which is used to connect the transition air duct 331 and the air outlet duct 220.

[0058] The top of the adapter body 332 needs to be connected to the air outlet duct 220 so that the transition duct 331 can be connected to the air outlet duct 220. Since the top plate 3332 is located on the top of the adapter body, the top plate 3332 needs to be provided with a connecting port 3336 for connecting the transition duct 331 and the air outlet duct 220. That is, the cold air in the transition duct 331 can enter the air outlet duct 220 through the connecting port 3336.

[0059] Please see Figure 5 In some embodiments, the first cover plate 310 is provided with a positioning boss 312, and the adapter body 332 is provided with a positioning groove 334, with the positioning boss 312 disposed in the positioning groove 334.

[0060] The positioning boss 312 is located on the side of the first cover plate 310 near the adapter body 332 and protrudes towards the adapter body 332. The positioning groove 334 is located on the side of the adapter body 332 near the first cover plate 310 and recesses towards the base plate 3331. The positioning boss 312 is disposed in the positioning groove 334, thereby positioning the adapter 330 on the first cover plate 310, making the installation of the adapter 330 on the first cover plate 310 more stable.

[0061] In some embodiments, the first cover plate 310 is detachably connected to the housing 210, and the second cover plate 320 is integrally formed with the housing 210.

[0062] The first cover plate 310 and the second cover plate 320 can be respectively disposed on the left and right sides of the adapter 330. Since the adapter 330 is installed on the first cover plate 310, if the position of the transition air duct 331 needs to be adjusted, the adapter 330 also needs to be disassembled. Therefore, the first cover plate 310 is detachably connected to the housing 210. In this way, when the position of the transition air duct 331 needs to be adjusted, the first cover plate 310 and the housing 210 are separated, the first cover plate 310 and the adapter 330 are removed together, and then the position is readjusted. The second cover plate 320 is integrally formed with the housing 210, thereby reducing the assembly steps of the air duct module 200 and improving production efficiency.

[0063] Please see Figure 3 In some embodiments, the housing 210 has an inspection window 230, and the transfer duct 300 is installed inside the inspection window 230.

[0064] Since the transition air duct 300 is installed inside the maintenance window 230 of the housing 210, the transition air duct 300 does not occupy additional space, thereby reducing the overall size of the air duct module 200. Furthermore, since both the transition air duct 331 and the outlet air duct 220 are located in the housing 210, it is also more convenient for the transition air duct 331 and the outlet air duct 220 to be connected.

[0065] It should be noted that since both the transition duct 331 and the outlet duct 220 are located within the housing 210, and the transition duct 331 is connected to the outlet duct 220, the outlet duct 220 will be exposed through the inspection window 230 after the transfer duct 300 is removed from the inspection window 230. Therefore, when the outlet duct 220 requires maintenance, the transfer duct 300 can be removed from the inspection window 230, allowing maintenance personnel to directly view and perform maintenance on the outlet duct 220 through the inspection window 230 without disassembling the entire duct module 200. This significantly saves maintenance time and improves maintenance efficiency.

[0066] Please see Figure 8 In some embodiments, the air duct module further includes an odor removal module 500 and an odor removal air duct 169 disposed in the housing 210. The odor removal air duct 169 is spaced apart from the air outlet duct 220. The adapter 330 also has an odor removal mounting cavity 337 communicating with the odor removal air duct 169 and a return air vent 222 communicating with the return air duct 150. The odor removal module 500 is installed in the odor removal mounting cavity 337, wherein the odor removal mounting cavity 337 is communicating with the return air vent 222.

[0067] If strong-smelling foods, such as dried pickled vegetables or hot pot base, are stored inside the refrigeration equipment 10, the odor will spread to other items, resulting in a poor user experience. Therefore, an odor-removing module 500 is required for odor removal. Since the odor-removing module 500 is installed in the odor-removing mounting cavity 337 of the adapter 330, the adapter duct 300 in this embodiment not only connects the outlet air duct 220 and the supply air duct 110 but also integrates the function of installing the odor-removing module 500. Therefore, when the adapter duct 300 is applied to the refrigeration equipment 10, there is no need to set up a structure for installing the odor-removing module 500 in the refrigeration equipment 10, thereby simplifying the structure of the refrigeration equipment 10.

[0068] The return air duct 150 is installed in the refrigeration equipment 10. Gas in the chamber 140 can enter the return air duct 150 through the return air inlet 222 and then enter the supply air duct 110 for cooling. The cooled air then enters the supply air duct 110 through the transition channel 400 and blows back into the chamber 140, achieving gas circulation. Since the odor-removing installation chamber 337 is connected to the return air inlet 222, the gas in the chamber 140 can also enter the odor-removing module 500 through the return air inlet 222. After purification by the odor-removing module 500, the clean gas is then blown out through the odor-removing duct 169. In other words, odor removal and return air share a single return air inlet 222, further simplifying the structure.

[0069] Based on the same inventive concept, please refer to Figure 1 and Figure 2 This application embodiment also provides a refrigeration device 10, including a housing 100 and the above-described air duct module 200. The housing 100 has a chamber 140 for containing items, the air duct module 200 is installed in the housing 100, and the air outlet duct 220 is used to supply air into the chamber 140.

[0070] Specifically, the refrigeration equipment 10 includes a freezing chamber 142 and a refrigeration chamber 141 in its chamber 140. An air supply duct 110 can be used to supply air to the freezing chamber 142, and an air outlet duct 220 can be used to supply air to the refrigeration chamber 141. The cabinet 100 may have a partition, which is used to divide the refrigeration chamber 141 and the freezing chamber 142 into two or more independent compartments to better classify and store different types of food, such as vegetables, fruits, and dairy products, thereby facilitating management and maintaining optimal freshness of the ingredients. Both the refrigeration chamber 141 and the freezing chamber 142 have partitions, and the air supply duct 110 and the air outlet duct 220 can be both located within the partitions; that is, the partition in the refrigeration chamber 141 is configured as the housing 210 of the air duct module 200. By using the partition to support and accommodate the supply air duct 110 and the outlet air duct 220, the space inside the partition can be effectively utilized, reducing the space occupied by the air ducts and making the overall structure more compact.

[0071] In some embodiments, the refrigeration device 10 further includes a door 700, which is disposed at the opening of the chamber 140. The thickness of the door 700 is 25mm to 40mm, and the total thickness of the cabinet 100 and the door 700 is 450mm to 600mm.

[0072] Because the thickness of the door 700 is limited to 25mm to 40mm, the door 700 is relatively thin, making it easier for users to open and close the door. Because the total thickness of the cabinet 100 and the door 700 is limited to 450mm to 600mm, the overall thickness of the refrigeration equipment is relatively thin, which reduces the area occupied by the refrigeration equipment and makes it easier to move.

[0073] Specifically, the thickness of the door 700 can be 26mm, 30mm, 32mm, 36mm, or 38mm, and the total thickness of the box 100 and the door 700 can be 480mm, 520mm, 540mm, 560mm, or 580mm.

[0074] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

Claims

1. A duct module, characterized in that, include: The housing (210) has an air outlet duct (220). A transfer duct (300) is detachably installed on the housing (210). The transfer duct (300) includes a first cover plate (310) and a second cover plate (320). The first cover plate (310), the second cover plate (320) and the housing (210) form a fixed cavity (321). The adapter (330) is located in the fixed cavity (321) and installed on the first cover plate (310). The adapter (330) has a transition air duct (331) for connecting the supply air duct (110) and the outlet air duct (220).

2. The air duct module according to claim 1, characterized in that, The adapter (330) includes an adapter body (332) and a fixing plate (333) disposed on the outer surface of the adapter body (332). The transition air duct (331) is disposed on the adapter body (332). The first cover plate (310) is detachably connected to the fixing plate (333).

3. The air duct module according to claim 2, characterized in that, The fixing plate (333) includes a bottom plate (3331), a top plate (3332), and two side plates (3333). The two side plates (3333) are respectively disposed on both sides of the bottom plate (3331). The top plate (3332) connects the bottom plate (3331) and the two side plates (3333). The first cover plate (310) contacts the top plate (3332) and the two side plates (3333) and is detachably connected to the bottom plate (3331).

4. The air duct module according to claim 3, characterized in that, The connecting duct also includes a fastener (340), the first cover plate (310) is provided with a first connecting hole (311), the bottom plate (3331) is provided with a second connecting hole (3334), and the fastener (340) passes through the first connecting hole (311) and the second connecting hole (3334).

5. The air duct module according to claim 4, characterized in that, The base plate (3331) is provided with a mounting groove (3335), and the second connecting hole (3334) is provided on the bottom surface of the mounting groove (3335).

6. The air duct module according to claim 3, characterized in that, The top plate (3332) is provided with a connecting port (3336), which is used to connect the transition air duct (331) and the air outlet air duct (220).

7. The air duct module according to claim 2, characterized in that, The first cover plate (310) is provided with a positioning boss (312), and the adapter body (332) is provided with a positioning groove (334), and the positioning boss (312) is disposed in the positioning groove (334).

8. The air duct module according to claim 1, characterized in that, The first cover plate (310) is detachably connected to the housing (210), and the second cover plate (320) is integrally formed with the housing (210).

9. The air duct module according to claim 1, characterized in that, The air duct module further includes an odor removal module (500) and an odor removal air duct (169) disposed in the housing (210). The odor removal air duct (169) is spaced apart from the air outlet duct (220). The adapter (330) also has an odor removal mounting cavity (337) communicating with the odor removal air duct (169) and a return air port (222) communicating with the return air duct (150). The odor removal module (500) is installed in the odor removal mounting cavity (337), wherein the odor removal mounting cavity (337) is communicating with the return air port (222).

10. A refrigeration device, characterized in that, Includes a housing (100) and an air duct module (200) as described in any one of claims 8-9, the housing (100) having a chamber (140) for containing articles, the air duct module (200) being mounted on the housing (100), and the air outlet duct (220) for supplying air into the chamber (140).

11. The refrigeration equipment according to claim 10, characterized in that, The refrigeration equipment (10) also includes a door (700), which is located at the opening of the chamber (140). The thickness of the door (700) is 25mm to 40mm, and the total thickness of the box (100) and the door (700) is 450mm to 600mm.

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