Air duct module and horizontal refrigerator

Abstract

The utility model discloses an air duct module and a horizontal refrigerator, and belongs to the technical field of refrigeration equipment. The air duct module comprises a shell and a drainage piece. The shell is provided with a mounting cavity, a first air outlet, a second air outlet and an air return opening, the drainage piece is mounted in the mounting cavity, external air can enter the mounting cavity through the air return opening, and the air in the mounting cavity flows out of the mounting cavity from the first air outlet and / or the second air outlet; wherein the first air outlet is located above the second air outlet, the second air outlet is located above the air return opening, and at least part of the first air outlet and the second air outlet are located on the same side of the shell. The cold air can flow in the width direction of the cabinet body as much as possible and can be blown to farther places, so that the cold air can be blown to articles in different areas, the situation that the temperature in the cabinet body is not uniform is reduced as much as possible, and the refrigeration effect is improved.

Description

Technical Field

[0001] This application belongs to the technical field of electrical equipment, and particularly relates to an air duct module and a horizontal freezer. Background Art

[0002] A freezer is a professional storage tool for storing various items that need to be frozen, which can keep food or other items in a frozen state, and is divided into household and commercial types. The refrigeration system of the freezer consists of a compressor, a condenser, a capillary tube, an evaporator, etc. Through the continuous circulation of the refrigerant, the heat inside the freezer is brought outside the freezer to achieve the purpose of cooling.

[0003] In order to reduce the problem of condensation inside the freezer, the air-cooling method can be adopted for refrigeration. The cold air is circulated by a fan to ensure that the food and beverages can maintain a roughly consistent temperature throughout the freezer. However, in the related art, the cold air mode of the air duct module of the freezer is prone to a large temperature difference inside the freezer, resulting in poor refrigeration effect. Summary of the Utility Model

[0004] This application aims to at least solve the technical problem of refrigeration effect to a certain extent. For this purpose, this application provides an air duct module and a horizontal freezer.

[0005] In a first aspect, an air duct module provided by an embodiment of this application is characterized by including:

[0006] A housing having an installation cavity, a first air outlet, a second air outlet, and a return air outlet that communicate with the installation cavity;

[0007] A drainage member installed in the installation cavity, capable of allowing external gas to enter the installation cavity through the return air outlet, and the gas in the installation cavity to flow out of the installation cavity from the first air outlet and / or the second air outlet;

[0008] Wherein, the first air outlet is located above the second air outlet, the second air outlet is located above the return air outlet, and at least part of the first air outlet and the second air outlet are located on the same side of the housing.

[0009] The first air outlet is located above the second air outlet, and the first air outlet and the second air outlet can be located on the same side of the housing, so that the first air outlet and the second air outlet can blow air out in the width direction of the cabinet body, enabling the cold air to flow as far as possible in the width direction of the cabinet body, reaching farther places, and enabling the cold air to blow to different areas of the items, minimizing the uneven temperature inside the cabinet body as much as possible and improving the refrigeration effect.

[0010] In an alternative embodiment of the present application, the housing has a first surface and a second surface disposed at an included angle, and at least a portion of the first air outlet and the second air outlet are located on the second surface.

[0011] In an alternative embodiment of the present application, the first air outlet is arc-shaped.

[0012] In an alternative embodiment of the present application, the radian of the first air outlet is 80 degrees to 100 degrees.

[0013] In an alternative embodiment of the present application, the air duct module further includes a deflector disposed in the installation cavity, which can distribute the air volume to the first air outlet and the second air outlet.

[0014] In an alternative embodiment of the present application, the housing includes a front shell and a rear shell, the front shell and the rear shell are connected to form the installation cavity, the first air outlet, the second air outlet and the air return opening are disposed on the front shell, and the rear shell is provided with an air inlet.

[0015] In an alternative embodiment of the present application, the deflector is installed on the rear shell and is hermetically connected to the front shell.

[0016] In an alternative embodiment of the present application, the deflector is integrally formed with the rear shell.

[0017] In an alternative embodiment of the present application, the housing has an installation groove; the air duct module further includes a fixing member and a cover plate, the fixing member is disposed in the installation groove and is used for fixedly connecting the housing to the cabinet of the refrigeration device, and the cover plate covers the installation groove.

[0018] In a second aspect, an embodiment of the present application provides a horizontal freezer, including a cabinet and the air duct module described in the first aspect, the cabinet has a receiving cavity, and the air duct module is installed in the receiving cavity.

[0019] The beneficial effects of the horizontal freezer provided in the second aspect are the same as those of the air duct module in the first aspect, and will not be described in detail here.

[0020] In an alternative embodiment of the present application, the receiving cavity has a bottom surface and a stepped surface higher than the bottom surface, and the air return opening is located on the stepped surface.

[0021] In an alternative embodiment of the present application, along the height direction of the cabinet, the air return opening is located at 1 / 4 to 1 / 2 of the cabinet.

[0022] In an alternative embodiment of the present application, along the height direction of the cabinet, the second air outlet is located at 3 / 5 to 4 / 5 of the cabinet. Description of the Drawings

[0023] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] Figure 1 It shows a schematic structural diagram of the air duct module provided by the embodiment of the present application from the first perspective.

[0025] Figure 2 It shows a schematic structural diagram of the air duct module provided by the embodiment of the present application from the second perspective.

[0026] Figure 3 It shows Figure 2 The partial enlarged view at D in

[0027] Figure 4 It shows Figure 1 The partial enlarged view at C in

[0028] Figure 5 It shows a schematic structural diagram of a part of the horizontal freezer provided by the embodiment of the present application.

[0029] Figure 6 It shows an exploded view of the air duct module provided by the embodiment of the present application.

[0030] Figure 7 It shows a schematic structural diagram of the rear shell and the flow guide member of the air duct module provided by the embodiment of the present application from the first perspective.

[0031] Figure 8 It shows a schematic structural diagram of the rear shell and the flow guide member of the air duct module provided by the embodiment of the present application from the second perspective.

[0032] Figure 9 It shows a schematic structural diagram of the air duct module provided by the embodiment of the present application.

[0033] Figure 10 It shows an exploded view of the air duct module provided by the embodiment of the present application from the first perspective.

[0034] Figure 11 It shows an exploded view of the air duct module provided by the embodiment of the present application from the second perspective.

[0035] Figure 12 It shows Figure 10 The partial enlarged view at F in

[0036] Figure 13 It shows Figure 11 The partial enlarged view at G in

[0037] Figure 14 The structural diagram of the front shell of the air duct module provided by the embodiment of the present application is shown.

[0038] Figure 15 The structural schematic diagram of the horizontal freezer from the first perspective provided by the embodiment of the present application is shown.

[0039] Figure 16 The structural schematic diagram of the horizontal freezer from the second perspective provided by the embodiment of the present application is shown.

[0040] Figure 17 The cross-sectional view of the horizontal freezer provided by the embodiment of the present application is shown.

[0041] Figure 18 Shown is Figure 17 The partial enlarged view at A in

[0042] Figure 19 The partial cross-sectional view of the horizontal freezer provided by the embodiment of the present application is shown.

[0043] Figure 20 Shown is Figure 19 The partial enlarged view at H in

[0044] Figure 21 Shown is Figure 17 The partial enlarged view at J in

[0045] Reference numerals: 10 - horizontal freezer, 100 - air duct module, 112 - first air outlet, 112a - air outlet grille, 112b - mesh hole, 112c - first left air vent, 112d - first right air vent, 113 - second air outlet, 113c - second left air vent, 113d - second right air vent, 114 - air return opening, 114a - first side, 114b - second side, 115 - air inlet,

[0046] 120 - housing, 121 - front shell, 121a - first shell section, 121b - second shell section, 121c - third shell section, 123 - rear shell, 124 - installation cavity, 125 - fixing cavity, 126a - first surface, 126b - second surface, 126 - thermal insulation layer, 126 - thermal insulation layer, 127 - sealing layer, 128 - installation groove, 129a - fixing hole, 129b - clamping hole, 129c - second positioning portion,

[0047] 130 - drainage member, 150 - fixing member, 160 - cover plate, 162 - clamping portion, 162a - connecting section, 162b - clamping section, 170 - connecting member,

[0048] 140 - Flow guide member, 142 - First flow guide portion, 142a - First upper flow guide section, 142b - First lower flow guide section, 142c - First connection point, 145 - Second flow guide portion, 145a - Second upper flow guide section, 145b - Second lower flow guide section, 145c - Second connection point, 146 - Third flow guide portion

[0049] 200 - Cabinet, 211 - Accommodation cavity, 213 - Bottom surface, 214 - Step surface, 215 - Electrical appliance cavity, 220 - Main body, 221 - Inner liner, 223 - Outer shell, 230 - Door body, 240 - Reinforcement portion, 250 - First positioning portion

[0050] 310 - Compressor, 320 - Evaporator, 330 - Refrigeration component, X - Width direction, Y - Thickness direction, Z - Height direction Detailed implementation manners

[0051] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention

[0052] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If this specific posture changes, the directional indication will also change accordingly

[0053] In the present invention, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances

[0054] In addition, in the present invention, descriptions such as "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments may be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0055] A freezer is a professional storage tool for storing various items that need to be frozen, which can keep food or other items in a frozen state, and is divided into household and commercial types. The refrigeration system of the freezer consists of parts such as a compressor, a condenser, a capillary tube, and an evaporator. Through the continuous circulation of the refrigerant, the heat inside the freezer is brought outside the freezer to achieve the purpose of cooling.

[0056] In order to reduce the problem of condensation inside the freezer, an air-cooling method can be adopted for refrigeration. The cold air is circulated by a fan to ensure that food and beverages can maintain a roughly consistent temperature throughout the freezer. However, in the related art, the cold air method of the air duct module of the freezer is prone to a large temperature difference inside the freezer, resulting in poor refrigeration effect. The air duct module and the horizontal freezer provided by the embodiments of the present application can improve the above problems. The air duct module and the horizontal freezer provided by the embodiments of the present application can enable cold air to flow at different heights inside the horizontal freezer, and can cover different areas of the horizontal freezer as much as possible, thereby improving the freezing effect.

[0057] The present application will be described below with reference to the accompanying drawings and specific embodiments:

[0058] Please refer to Figure 1 and Figure 2 . The embodiments of the present application provide an air duct module 100. The air duct module 100 provided by the embodiments of the present application is mainly applied to refrigeration equipment. The air duct module 100 provided by the embodiments of the present application can enable cold air to flow at different heights inside the horizontal freezer 10, and can cover different areas of the horizontal freezer 10 as much as possible, thereby improving the freezing effect.

[0059] Among them, the refrigeration equipment can be a refrigerator or a freezer. Specifically, the freezer can be the horizontal freezer 10 or a vertical freezer. In the embodiments of the present application, for the convenience of description, the refrigeration equipment is taken as an example of the horizontal freezer 10 for illustration. When the refrigeration equipment is other equipment, it can be analogized accordingly.

[0060] The horizontal freezer 10 is generally rectangular. For the convenience of description, the height direction Z, the width direction X, and the thickness direction Y are respectively defined. Among them, in the usage state of the horizontal freezer 10, the vertical direction is the height direction Z, and the projection of the horizontal freezer 10 in the vertical direction is a rectangle. The direction where the long side is located is the width direction X, and the direction where the short side is located is the thickness direction Y.

[0061] Since the thickness of the air duct module 100 is relatively small compared to the width, and the width of the air duct module 100 is basically equal to the thickness of the horizontal freezer 10, the air duct module 100 can be installed on one side surface of the horizontal freezer 10 in the width direction X, so that the air blown out of the freezer can cover the side surface formed by the length direction and the width direction X as much as possible. The air blown out of the freezer can cover the interior of the entire cabinet 200, and the uniformity of freezing can be improved as much as possible.

[0062] Similarly, for the convenience of description, six directions including up, down, left, right, front, and back are defined. Among them, in the height direction Z, the side close to the opening is up, and the side close to the bottom surface 213 is down. The two directions in the width direction X are respectively left and right. The installation position of the air duct module 100 is right, and the opposite side is left. In the thickness direction Y, the connection part between the door body 230 and the main body 220 is the back, and the opposite side is the front.

[0063] In the embodiment of the present application, the air duct module 100 includes a housing 120 and a diversion member 130. The housing 120 has an installation cavity 124, a first air outlet 112, a second air outlet 113, and a return air outlet 114 that communicate with the installation cavity 124. The diversion member 130 is installed in the installation cavity 124 and can enable external gas to enter the installation cavity 124 through the return air outlet 114, and the gas in the installation cavity 124 flows out of the installation cavity 124 from the first air outlet 112 and / or the second air outlet 113.

[0064] The air duct module 100 is applied to a refrigeration device (horizontal freezer 10) and is installed in the cabinet 200 of the refrigeration device (horizontal freezer 10), which can make the air in the refrigeration device (horizontal freezer 10) flow, so that the air in the refrigeration device (horizontal freezer 10) can be blown to the frozen items after being refrigerated by the evaporator 320. That is, it can be considered that the air duct module 100 is mainly used to blow cold air into the refrigeration device (horizontal freezer 10), so that the cold air can circulate inside the refrigeration device (horizontal freezer 10), and the temperature in the same chamber of the refrigeration device (horizontal freezer 10) can be kept basically the same as much as possible, and the temperature difference in the same chamber can be reduced.

[0065] The housing 120 is a basic component of the air duct module 100 and can provide an installation basis for other structures of the air duct module 100. Structures such as the flow guiding member 130 can be installed on the housing 120, enabling the air duct module 100 to form an integral whole, which facilitates the installation and transportation of the air duct module 100. At the same time, the housing 120 can also protect structures such as the flow guiding member 130 and reduce damage to the flow guiding member 130 and the like by external structures.

[0066] The flow guiding member 130 is mainly used for flow disturbance, enabling air to circulate in the refrigeration device, that is, the air in the refrigeration device can continuously flow to the evaporator 320, and after being cooled by the evaporator 320, it blows towards the frozen items again.

[0067] Among them, the flow guiding member 130 can be a fan. Specifically, it can be a centrifugal fan, an axial flow fan, or a cross-flow fan.

[0068] The first air outlet 112 is located above the second air outlet 113, and the second air outlet 113 is located above the air return opening 114.

[0069] Among them, the first air outlet 112, the second air outlet 113, and the air return opening 114 are arranged in order from high to low. The first air outlet 112 is close to the top of the accommodation cavity 211, the air return opening 114 is close to the bottom of the accommodation cavity 211, and the second air outlet 113 is roughly arranged in the middle area of the accommodation cavity 211, enabling the cold air to form multiple different circulation areas and improving the refrigeration effect.

[0070] Specifically, when the user places items, they basically stack them from bottom to top. There are more items at the bottom and more cold air is needed. By arranging the second air outlet 113 between the first air outlet 112 and the air return opening 114, the cold air can roughly blow out from the middle area of the cabinet body 200 and can quickly blow towards the bottom area of the accommodation cavity 211. Through the cooperation of the first air outlet 112 and the second air outlet 113, the cold air can blow more evenly towards different areas in the accommodation cavity 211, thereby making the refrigeration effect better.

[0071] The air duct module 100 is disposed on one side of the accommodation cavity 211 in the width direction X. The first air outlet 112 is approximately disposed at the top of the accommodation cavity 211, and the second air outlet 113 is approximately disposed in the middle of the accommodation cavity 211. Since there is less possibility of placing items at the top of the accommodation cavity 211, the cold air blown out from the first air outlet 112 can be blown towards the other side in the width direction X of the accommodation cavity 211 as much as possible, so that the area farther from the air duct module 100 can be blown by the cold air. The second air outlet 113 is approximately disposed in the middle area of the accommodation cavity 211, so that the cold air blown out from the second air outlet 113 can directly blow onto the items near the air duct module 100, and further, the items in the accommodation cavity 211 can be blown by the cold air as much as possible, thereby improving the refrigeration effect of the entire horizontal freezer 10.

[0072] That is to say, in the embodiment of the present application, the first air outlet 112 is located above the second air outlet 113, and the first air outlet 112 and the second air outlet 113 can be located on the same side of the housing 120, so that the first air outlet 112 and the second air outlet 113 can discharge air along the width direction X of the cabinet body 200, so that the cold air can flow as much as possible in the width direction X of the cabinet body 200, can be blown to a farther place, so that the items in different areas can be blown by the cold air, and the situation of uneven temperature inside the cabinet body 200 can be reduced as much as possible, and the refrigeration effect is improved.

[0073] Please refer to Figure 3 and Figure 4 , in some embodiments, the housing 120 has a first surface 126a and a second surface 126b that are disposed at an angle to each other. The first surface 126a and the second surface 126b, and the first air outlet 112 are respectively located on the first surface 126a and the second surface 126b.

[0074] Wherein, the first surface 126a is located at the top of the housing 120, the second surface 126b is located at the side of the housing 120, and the first air outlet 112 extends from the first surface 126a to the second surface 126b, so that a part of the first air outlet 112 is located at the top of the housing 120, a part is located at the side of the housing 120, and the intermediate transition region is connected by an arc transition, and further, the entire first air outlet 112 is arc-shaped.

[0075] In some embodiments, there are multiple first air outlets 112, and the multiple first air outlets 112 are at the same height of the air duct module 100, and the multiple first air outlets 112 are all arc-shaped. That is, the cross-sections of the multiple first air outlets 112 in the vertical plane are all arc-shaped, and the radian of the multiple first air outlets 112 can be the same or different, and can be set according to actual situations.

[0076] A plurality of first air outlets 112 are arranged at intervals in the thickness direction Y, so that the first air outlets 112 are arranged as evenly as possible in the thickness direction Y of the cabinet 200. Furthermore, the air blown out from the plurality of first air outlets 112 can cover the plane formed by the width direction X and the thickness direction Y as much as possible, improving the coverage area of the cold air and thus enhancing the refrigeration effect.

[0077] In some embodiments, the second air outlet 113 is located on the second surface 126b. This enables the first air outlet 112 and the second air outlet 113 to be on the same side of the housing, allowing the first air outlet 112 and the second air outlet 113 to discharge air along the width direction X of the cabinet 200. As a result, the cold air can flow as far as possible in the width direction X of the cabinet 200, reaching farther places and ensuring that the cold air can blow onto items in different areas, minimizing the uneven temperature inside the cabinet 200 and enhancing the refrigeration effect.

[0078] In some embodiments, the air outlet area of the first air outlet 112 is arc-shaped.

[0079] The air outlet area of the first air outlet 112 being arc-shaped means that the air outlet area in the height direction Z of the horizontal freezer 10 is arc-shaped. With the air outlet area being arc-shaped in the height direction Z, the cold air blown out from the first air outlet 112 can have multiple different directions in the height direction Z. Consequently, the cold air blown out from the first air outlet 112 can blow to different heights inside the horizontal freezer 10, allowing the cold air to flow at different heights within the horizontal freezer 10 and covering different areas of the horizontal freezer 10 as much as possible, thereby improving the freezing effect.

[0080] In addition, since the air duct module 100 is applied to the horizontal freezer 10, the air outlet area of the first air outlet 112 is arc-shaped in the height direction Z of the horizontal freezer 10, that is, the air outlet area of the first air outlet 112 is arc-shaped in the vertical plane.

[0081] Among them, the air outlet area of the first air outlet 112 being arc-shaped can mean that the shape of the first air outlet 112 is arc-shaped, or a sweeping member can be provided at the first air outlet 112 to form an arc-shaped air outlet area through the sweeping of the sweeping member.

[0082] In some embodiments, the air duct module 100 is installed on one side of the horizontal freezer 10 in the width direction X. After the air duct module 100 is disposed in the horizontal freezer 10, the first air outlet 112 is located above the air return opening 114, and the air outlet area of the first air outlet 112 is arc-shaped, so that the cold air blown out from the first air outlet 112 has an upward flow trend. After the upward cold air is guided by the door body 230 of the horizontal door body 230, it can flow to the other side of the accommodation cavity 211 in the width direction X, so that the side of the accommodation cavity 211 away from the air duct module 100 can be blown by the cold air, thereby improving the uniformity of the cold air in the accommodation cavity 211 as much as possible, and further improving the refrigeration effect as much as possible.

[0083] Since the air outlet direction of the first air outlet 112 is arc-shaped, it has an upward air outlet direction and a leftward air outlet direction at the same time, that is, the first air outlet 112 also has a substantially horizontal air outlet direction, so that the cold air blown out from the first air outlet 112 can directly blow into the area around the air duct module 100, and further enables the first air outlet 112 to have different levels of air outlet and freeze items at different positions.

[0084] In some embodiments, at least a part of the first air outlet 112 is arc-shaped. The first air outlet 112 is located at the top of the housing 120. At least a part of the first air outlet 112 being arc-shaped may mean that the first air outlet 112 is entirely arc-shaped, or a part of the first air outlet 112 is arc-shaped and the other part is linear, and the specific form may not be limited.

[0085] The first air outlet 112 is located at the top of the housing 120 and is arc-shaped. The arc-shaped first air outlet 112 has multiple different air outlet directions. Since the first air outlet 112 is also located at the top of the housing 120, the cold air blown out from the first air outlet 112 can blow upward and leftward, so that the upward cold air can flow to the left side of the cabinet body 200 after being guided by the door body 230, and the leftward cold air can directly blow into the area near the air duct module 100, thereby enabling the cold air to flow as much as possible inside the entire cabinet body 200 and improving the refrigeration effect.

[0086] In some embodiments, the radian of the first air outlet 112 is 80 degrees to 100 degrees. The radian of the first air outlet 112 refers to the radian in the vertical plane. Specifically, the radian of the first air outlet 112 can be 80 degrees, 82 degrees, 85 degrees, 90 degrees, 95 degrees, etc.

[0087] The curvature of the first air outlet 112 is 80 degrees to 100 degrees, so that the first air outlet 112 can cover the top and left side of the air duct module 100 as much as possible, so that the first air outlet 112 can have a vertical upward air outlet direction at the top of the shell 120 and a horizontal upward and left air outlet direction at the side of the shell 120 as much as possible, and also has multiple inclined upward and left air outlet directions from vertical upward to horizontal left, so that cold air can flow to different areas in the cabinet 200, so that the cold air can circulate in the cabinet 200, thereby improving the cooling effect.

[0088] In some embodiments, the first air outlet 112 is provided with an air outlet grille 112a. Since the first air outlet 112 is arc-shaped and has an upwardly disposed portion, in order to ensure the amount of cold air from the first air outlet 112, the opening area of ​​the first air outlet 112 will not be set particularly small. Also, since the first air outlet 112 is disposed at the top of the cabinet 200, it is easy for some small-volume items to enter the interior of the housing 120 from the first air outlet 112 during the process of the user taking or placing items. The air outlet grille 112a is provided on the first air outlet 112 to reduce the opening area of ​​a single hole of the first air outlet 112, thereby reducing the risk of small-volume items entering the housing 120 from the first air outlet 112.

[0089] In some embodiments, the air outlet grille 112a is injection-molded and connected to the housing 120. The air outlet grille 112a can be directly integrally formed with the housing 120 by injection molding, so that the air outlet grille 112a and the housing 120 form a whole, which can reduce the risk of the air outlet grille 112a falling off the housing 120, reduce the risk of the air outlet grille 112a falling into the housing 120, reduce the failure rate of the air duct module 100, and increase the service life of the air duct module 100.

[0090] In some embodiments, the air outlet grille 112a has a plurality of mesh holes 112b, the plurality of mesh holes 112b are arranged at intervals, and the maximum width of each mesh hole 112b is less than or equal to 1.5 mm.

[0091] The width of the mesh 112b may be the distance between any two points on the mesh 112b, and the maximum width is the distance between the two points in the mesh 112b that are the farthest apart. Since the length of a rice grain is approximately 1.5 mm, the maximum width of the mesh 112b is less than or equal to 1.5 mm, so as to prevent rice grains or objects of the same volume level as rice grains from entering the housing 120 as much as possible, thereby reducing the failure rate of the air duct module 100 and increasing the service life of the air duct module 100.

[0092] In some embodiments, the air outlet grille 112 a is disposed at least in an upper region of the first air outlet 112 .

[0093] The upper region of the first air outlet 112 refers to the region where the air outlet direction has an upward component, that is, the air outlet direction within this region can be vertically upward, can be inclined upward, or can be partially vertically upward and partially inclined upward. The upper region of the first air outlet 112 is arranged facing the door body 230. After the door body 230 is opened, impurities are most likely to enter the housing 120 through this upper region. By providing an air outlet grille 112a in the upper region, the risk of impurities entering the housing 120 can be minimized as much as possible.

[0094] The air outlet grille 112a is provided at least in the upper region of the first air outlet 112. It can be only provided in the upper region of the first air outlet 112, or can be provided in the upper region of the first air outlet 112 and also in other regions of the first air outlet 112 except the upper region.

[0095] In some embodiments, the housing 120 includes a front housing 121 and a rear housing 123. The front housing 121 includes a first housing section 121a, a second housing section 121b, and a third housing section 121c. The second housing section 121b is connected to the first housing section 121a and the third housing section 121c respectively. The rear housing 123 is connected to the first housing section 121a to form an installation cavity 124. The second housing section 121b and the third housing section 121c are used to form a fixing cavity 125 for installing the evaporator 320 with the cabinet 200; wherein, the first air outlet 112 is provided on the first housing section 121a, and the air return opening 114 is provided on the third housing section 121c.

[0096] Please refer to Figure 2 and Figure 5 , the housing 120 includes a front housing 121 and a rear housing 123. The front housing 121 and the rear housing 123 are connected. The front housing 121 further includes a first housing section 121a, a second housing section 121b, and a third housing section 121c. The first housing section 121a is located above the second housing section 121b, and the second housing section 121b is located above the third housing section 121c. The first housing section 121a and the rear housing 123 form an installation cavity 124 for accommodating the drainage member 130. An air inlet 115 is provided on the rear housing 123. The air return opening 114 is provided on the third housing section 121c and is communicated with the fixing cavity 125.

[0097] Wherein, when the air in the accommodation cavity 211 enters the fixing cavity 125 through the air return opening 114, under the action of the drainage member 130, it will flow towards the air inlet 115, so that the air entering the fixing cavity 125 will flow through the evaporator 320 for refrigeration and then flow into the installation cavity 124, and then blow into the accommodation cavity 211 through the first air outlet 112. That is to say, the evaporator 320 is arranged between the air return opening 114 and the air inlet 115 and refrigerates during the process of air circulation, so that the air blown out from the first air outlet 112 is always cold air, improving the refrigeration effect.

[0098] It should be noted that the evaporator 320 is fixed in the fixing cavity 125 jointly formed by the second housing section 121b, the third housing section 121c and the cabinet body 200, which facilitates the assembly of the air duct module 100 and the evaporator 320. During assembly, first assemble the air duct module 100 into a whole, assemble the evaporator 320 at the set position in the accommodation cavity 211, and then assemble the whole of the air duct module 100 into the accommodation cavity 211, so that the second housing section 121b and the third housing section 121c cover the evaporator 320 and form a closed fixing cavity 125 with the main body 220, enabling the air in the accommodation cavity 211 to enter the fixing cavity 125 through the return air outlet 114, flow through the evaporator 320 for refrigeration, and then flow to the first air outlet 112.

[0099] In some embodiments, the third housing section 121c protrudes from the second housing section 121b, and the return air outlet 114 is arranged at one end of the third housing section 121c away from the second housing section 121b.

[0100] The fact that the third housing section 121c protrudes from the second housing section 121b means that the third housing 120 protrudes from the second housing section 121b in the width direction X. That is, in the width direction X, the third housing section 121c is arranged to the left of the second housing section 121b, and the third housing section 121c is closer to the central area of the accommodation cavity 211. The return air outlet 114 is arranged at one end of the third housing section 121c away from the second housing section 121b and the first air outlet 112 is arranged on the first housing section 121a. It can be considered that in the width direction X, among the return air outlet 114 and the first air outlet 112, the return air outlet 114 is arranged closer to the central area of the accommodation cavity 211, enabling the gas in the accommodation cavity 211 to more easily enter the fixing cavity 125 through the return air outlet 114, allowing the gas to stay and grow in the fixing cavity 125, thereby increasing the heat exchange time with the evaporator 320, improving the refrigeration effect on the air, and further improving the freezing effect.

[0101] Please refer to Figure 6 In some embodiments, the air duct module 100 further includes a flow guiding member 140 arranged in the installation cavity 124, which can distribute the air volume to the first air outlet 112 and the second air outlet 113.

[0102] Among them, the front housing 121 and the rear housing 123 are in terms of their positions relative to the cabinet body 200 of the refrigeration device. Among the front housing 121 and the rear housing 123, the rear housing 123 is arranged closer to the cabinet body 200, that is, the rear housing 123 is located behind the front housing 121, and the front housing 121 and the rear housing 123 are connected to form the installation cavity 124.

[0103] The air inlet 115 is provided on the rear case 123, and the first air outlet 112 and the second air outlet 113 are provided on the front case 121. After being cooled by the evaporator 320 and through the action of the flow guiding member 130, it can be blown from the first air outlet 112 and the second air outlet 113 into the cabinet 200 of the refrigeration device. The air blown out from the first air outlet 112 and the second air outlet 113 is cold air.

[0104] Since the refrigeration device generally has a certain height, in order to make the cold air blow to different heights inside the cabinet 200 as much as possible, the first air outlet 112 and the second air outlet 113 can be set at different heights. That is, the first air outlet 112 can be set above the second air outlet 113, or the second air outlet 113 can be set above the first air outlet 112.

[0105] That is, the first air outlet 112 and the second air outlet 113 are located at different positions of the housing 120. After the flow guiding member 130 is installed in the installation cavity 124, the position of the flow guiding member 130 is determined. Due to factors such as the turning of the flow guiding member 130, the rotation speed of the flow guiding member 130, the position between the first air outlet 112 and the flow guiding member 130, and the position between the second air outlet 113 and the flow guiding member 130, the air volume of the first air outlet 112 and the second air outlet 113 is unstable.

[0106] A flow guiding member 140 is provided in the installation cavity 124. The flow guiding member 140 can respectively guide the cold air entering the installation cavity 124 to the first air outlet 112 and the second air outlet 113. The air volume in the installation cavity 124 can be distributed through the flow guiding member 140, so that the air volume of the cold air flowing to the first air outlet 112 and the second air outlet 113 can be roughly stable, thereby making the air volume blown to the refrigeration device roughly stable, and further ensuring the cold quantity at different heights in the refrigeration device and improving the refrigeration effect of the refrigeration device.

[0107] Specifically, since users generally place frozen items at the bottom first when placing them, there will be more frozen items piled up at the bottom. Therefore, the cold quantity demand at the bottom is relatively large, and more cold quantity can be guided to the bottom of the refrigeration device through the guiding of the flow guiding member 140. In addition, since the cabinet 200 of the refrigeration device is generally in a cuboid shape (long strip shape), and the air duct module 100 is installed on one side wall of the cabinet 200, the other side wall opposite is the farthest from the air duct module 100. As a result, the frozen items near the opposite side wall can absorb less cold quantity. The air outlet above can also be enlarged, so that the cold air can flow to a farther position, and then freeze the frozen items farther from the air duct module 100.

[0108] In some embodiments, the flow guide member 140 is installed on the rear housing 123 and is hermetically connected to the front housing 121. Since the air flow direction is from the air inlet 115 to the first air outlet 112 and the second air outlet, the flow guide member 140 can be installed on the rear housing 123 and hermetically connected to the front housing 121, so that the rear housing 123, the front housing 121 and the flow guide member 140 can form a flow guide channel to respectively guide the cold air to the first air outlet 112 and the second air outlet 113.

[0109] Specifically, the flow guide member 140 and the rear housing 123 are integrally formed, which can not only reduce the processing cost of the flow guide member 140 and the rear housing 123, but also reduce the sealing process between the rear housing 123 and the flow guide member 140, and can also reduce the manufacturing cost.

[0110] In some embodiments, the air inlet 115 is arranged in a staggered manner with the first air outlet 112 and the second air outlet 113. It means that in the direction of the front housing 121 facing the rear housing 123, the air inlet 115 is arranged in a staggered manner with the first air outlet 112, and the air inlet 115 is arranged in a staggered manner with the second air outlet 113. This shows that there is no direct connection between the air inlet 115 and the first air outlet 112, and there is no direct connection between the air inlet 115 and the second air outlet 113. The cold air may collide with the front housing 121 or the rear housing 123 during the process of flowing to the first air outlet 112 and the second air outlet 113, resulting in kinetic energy loss. By arranging the flow guide member 140 in the installation cavity 124, the cold air in the installation cavity 124 can be guided, which can reduce the loss of cold air kinetic energy, enable the cold air to blow to a farther place in the cabinet 200, and thus improve the uniformity of the cold quantity in the cabinet 200 as much as possible and improve the refrigeration effect of the frozen items.

[0111] Please refer to Figure 7 、 Figure 8 and Figure 9 In some embodiments, the first air outlet 112 includes a first left air outlet 112c and a first right air outlet 112d, the second air outlet 113 includes a second left air outlet 113c and a second right air outlet 113d, the flow guide member 140 includes a first flow guide portion 142 and a second flow guide portion 145. The first flow guide portion 142 and the second flow guide portion 145 are respectively arranged on both sides of the air inlet 115. The first flow guide portion 142 is correspondingly arranged with the first left air outlet 112c and the second left air outlet 113c, and the second flow guide portion 145 is correspondingly arranged with the first right air outlet 112d and the second right air outlet 113d.

[0112] Among them, there are two first air outlets 112, namely a first left air outlet 112c and a first right air outlet 112d. The first left air outlet 112c and the first right air outlet 112d are at the same height of the front shell 121. There are two second air outlets 113, namely a second left air outlet 113c and a second right air outlet 113d. The second left air outlet 113c and the second right air outlet 113d are at the same height of the front shell 121.

[0113] For the convenience of description, taking the direction from the front shell 121 to the rear shell 123 as the view direction, the first left air outlet 112c and the second left air outlet 113c are respectively located on the left side of the air inlet 115, and the first right air outlet 112d and the second right air outlet 113d are respectively located on the right side of the air inlet 115. The first left air outlet 112c is located above the second left air outlet 113c, and the first right air outlet 112d is located above the second right air outlet 113d.

[0114] Similarly, the first air guiding part 142 is located on the left side of the air inlet 115, and the second air guiding part 145 is located on the right side of the air inlet 115. The first air guiding part 142 is used to guide air to the first left air outlet 112c and the second left air outlet 113c, and the second air guiding part 145 is used to guide air to the first right air outlet 112d and the second right air outlet 113d.

[0115] Specifically, the shape of the first air guiding part 142 can be set according to the height of the first left air outlet 112c and the second left air outlet 113c and their positions relative to the air guiding member 130. Similarly, the shape of the second air guiding part 145 can be set according to the height of the first right air outlet 112d and the second right air outlet 113d and their positions relative to the air guiding member 130.

[0116] In some embodiments, the minimum distance between the first air guiding part 142 and the air guiding member 130 is the first distance, and the minimum distance between the second air guiding part 145 and the air guiding member 130 is the second distance;

[0117] When the air guiding member 130 turns from the second air guiding part 145 to the first air guiding part 142, the first distance is greater than the second distance.

[0118] Among them, the diversion member 130 can be a centrifugal impeller, and the air inlet 115 is generally circular. The diversion member 130 can be installed at the air inlet 115. The first left air outlet 112c, the first right air outlet 112d, the second left air outlet 113c, and the second right air outlet 113d are generally distributed at the four symmetric corners of the air inlet 115. The distance between the first diversion portion 142 and the diversion member 130 can be generally considered as the distance between the first diversion portion 142 and the air inlet 115. Specifically, the distance between the first diversion portion 142 and the air inlet 115 refers to the distance between any point on the first diversion portion 142 and the edge of the air inlet 115 along the radial direction of the air inlet 115. The minimum distance between the first diversion portion 142 and the diversion member 130 can be considered as the minimum distance between the first diversion portion 142 and the edge of the air inlet 115.

[0119] Since the first diversion portion 142 extends from the air inlet 115 to the first left air outlet 112c and the second left air outlet 113c respectively, the minimum distance between the first diversion portion 142 and the diversion member 130 can be considered as the first flow path between the first diversion portion 142 and the air inlet 115.

[0120] Similarly, the distance between the second diversion portion 145 and the diversion member 130 can be generally considered as the distance between the second diversion portion 145 and the air inlet 115. Specifically, the distance between the second diversion portion 145 and the air inlet 115 refers to the distance between any point on the second diversion portion 145 and the edge of the air inlet 115 along the radial direction of the air inlet 115. The minimum distance between the second diversion portion 145 and the diversion member 130 can be considered as the minimum distance between the second diversion portion 145 and the edge of the air inlet 115.

[0121] Since the second diversion portion 145 extends from the air inlet 115 to the first right air outlet 112d and the second right air outlet 113d respectively, the minimum distance between the second diversion portion 145 and the diversion member 130 can be considered as the second flow path between the second diversion portion 145 and the air inlet 115.

[0122] The flow guide 130 turns from the second flow guide 145 to the first flow guide 142, which means that the flow guide 130 rotates counterclockwise in the direction from the front shell 121 to the rear shell 123. During the rotation of the flow guide 130, the wind entering the accommodating chamber 211 from the air inlet 115 first flows to the second guide part, and then flows to the first flow guide 142. If the first distance is greater than the second distance, it means that the first flow channel is greater than the second flow channel. In general, the flow rate of the second flow guide 145 that passes first will be slightly greater than the flow rate of the first flow guide 142. The first flow channel is larger than the second flow channel so that the wind speed flowing through the first air guide portion 142 and the second air guide portion 145 may be roughly the same, that is, the air volumes blown out from the first left air outlet 112c, the second left air outlet 113c, the first right air outlet 112d and the second right air outlet 113d are roughly the same, and the air volumes at different air outlets are made roughly the same as much as possible, so as to ensure that the cooling amount of cold air blown to various parts of the refrigeration equipment is the same as much as possible, thereby improving the freezing effect of the refrigeration equipment.

[0123] In some embodiments, the first guide portion 142 includes a first upper guide section 142a and a first lower guide section 142b, one end of the first upper guide section 142a and one end of the first lower guide section 142b are connected to form a first connection point 142c, one end of the first upper guide section 142a away from the first connection point 142c extends to the first left air outlet 112c, and one end of the first lower guide section 142b away from the first connection point 142c extends to the second left air outlet 113c.

[0124] The first connection point 142c is the point on the first air guide 142 closest to the air inlet 115, that is, the first connection point 142c is the point on the entire first air guide 142 closest to the guide member 130. The first upper guide section 142a extends from the air inlet 115 to the bottom of the first left air outlet 112c, and guides the cold air to the first left air outlet 112c. The first lower guide section 142b extends from the air inlet 115 to the top of the second left air outlet 113c, and guides the cold air to the second left air outlet 113c. That is, the first upper guide section 142a and the first lower guide section 142b are arranged between the first left air outlet 112c and the second left air outlet 113c.

[0125] The shape of the first upper guide section 142a can be straight, curved, or a combination of straight and curved shapes, and is not specifically limited. Similarly, the shape of the first lower guide section 142b can be straight, curved, or a combination of straight and curved shapes.

[0126] In some embodiments, along the height direction Z of the housing 120 , the inclination angle of the first upper guide section 142 a is greater than the inclination angle of the first lower guide section 142 b .

[0127] Among them, the height direction Z of the housing 120 refers to the height direction Z (vertical direction) after the entire air duct module 100 is installed in the refrigeration equipment. Along the height direction Z of the housing 120, the inclination angle of the first upper diversion section 142a can be considered as the angle of the first upper diversion section 142a in the vertical direction. The larger the inclination angle of the first upper diversion section 142a, the gentler the first upper diversion section 142a is, and the slower the diversion is. The smaller the inclination angle of the first upper diversion section 142a, the steeper the first upper diversion section 142a is, and the faster the diversion is.

[0128] Similarly, the larger the inclination angle of the first lower diversion section 142b in the height direction Z of the housing 120, the gentler the first lower diversion section 142b is, and the slower the diversion is. The smaller the inclination angle of the first lower diversion section 142b, the steeper the first lower diversion section 142b is, and the faster the diversion is.

[0129] The fact that the inclination angle of the first upper diversion section 142a is greater than that of the first lower diversion section 142b indicates that the first upper diversion section 142a is gentler relative to the first lower diversion section 142b. Since the first upper diversion section 142a is located above the first lower diversion section 142b and the flow direction of the flow guiding member 130 is from the first upper diversion section 142a to the first lower diversion section 142b, the flow rate above is relatively larger than that below. That is, the first lower diversion section 142b below is set steeper, which can balance the flow rate difference between the upper and lower parts, making the air volumes of the first left air outlet 112c and the second left air outlet 113c approximately the same.

[0130] In some embodiments, the included angle between the first upper diversion section 142a and the first lower diversion section 142b is 0° to 90°. Since the first upper diversion section 142a and the first lower diversion section 142b are connected at the first connection point 142c and extend upward and downward respectively (extend in different directions), the smaller the included angle between the first upper diversion section 142a and the first lower diversion section 142b, the closer the distance between the first upper diversion section 142a and the first lower diversion section 142b is, resulting in a larger space above the first upper diversion section 142a or / and below the first lower diversion section 142b, enabling more cold air to be diverted to the first left air outlet 112c and the second left air outlet 113c and increasing the air output of the first left air outlet 112c and the second left air outlet 113c.

[0131] Specifically, the included angle between the first upper diversion section 142a and the first lower diversion section 142b can be 25°, 30°, 35°, 45°, 55°, 60° and 65°, etc.

[0132] In some embodiments, the second flow guiding portion 145 includes a second upper flow guiding section 145a and a second lower flow guiding section 145b. One end of the second upper flow guiding section 145a and one end of the second lower flow guiding section 145b are connected to form a second connection point 145c. The end of the second upper flow guiding section 145a away from the second connection point 145c extends to the first right air outlet 112d, and the end of the second lower flow guiding section 145b away from the second connection point 145c extends to the second right air outlet 113d.

[0133] The second connection point 145c is the point on the second flow guiding portion 145 closest to the air inlet 115, that is, the second connection point 145c is the point on the entire second flow guiding portion 145 closest to the flow guiding member 130. The second upper flow guiding section 145a extends from the air inlet 115 to the lower side of the first right air outlet 112d, and can guide the cold air to the first right air outlet 112d. The second lower flow guiding section 145b extends from the air inlet 115 to the upper side of the second right air outlet 113d, and can guide the cold air to the second right air outlet 113d. That is, the second upper flow guiding section 145a and the second lower flow guiding section 145b are disposed between the first right air outlet 112d and the second right air outlet 113d.

[0134] As for the shape of the second upper flow guiding section 145a, it can be linear, arc-shaped, or a combination of linear and arc-shaped, and no specific limitation is required. Similarly, as for the shape of the second lower flow guiding section 145b, it can be linear, arc-shaped, or a combination of linear and arc-shaped.

[0135] In some embodiments, along the height direction Z of the housing 120, the inclination angle of the second upper flow guiding section 145a is greater than the inclination angle of the second lower flow guiding section 145b.

[0136] Wherein, the height direction Z of the housing 120 refers to the height direction Z (vertical direction) after the entire air duct module 100 is installed in the refrigeration device. Along the height direction Z of the housing 120, the inclination angle of the second upper flow guiding section 145a can be regarded as the angle of the second upper flow guiding section 145a in the vertical direction. The larger the inclination angle of the second upper flow guiding section 145a, the flatter the second upper flow guiding section 145a, and the slower the flow guiding. The smaller the inclination angle of the second upper flow guiding section 145a, the steeper the second upper flow guiding section 145a, and the faster the flow guiding.

[0137] Similarly, the larger the inclination angle of the second lower flow guiding section 145b in the height direction Z of the housing 120, the flatter the second lower flow guiding section 145b, and the slower the flow guiding. The smaller the inclination angle of the second lower flow guiding section 145b, the steeper the second lower flow guiding section 145b, and the faster the flow guiding.

[0138] The inclination angle of the second upper diversion section 145a is greater than that of the second lower diversion section 145b, indicating that the second upper diversion section 145a is relatively gentle compared to the second lower diversion section 145b. Since the second upper diversion section 145a is located above the second lower diversion section 145b, the flow of the flow guiding member 130 turns from the first lower diversion section 142b to the second upper diversion section 145a, and the flow rate above is relatively larger than that below. That is, the second lower diversion section 145b below is set steeper, which can balance the flow difference between the upper and lower parts, making the air volumes of the first right air outlet 112d and the second right air outlet 113d approximately the same.

[0139] In some embodiments, the included angle between the second upper diversion section 145a and the second lower diversion section 145b is 0° to 90°. Since the second upper diversion section 145a and the second lower diversion section 145b are connected at the second connection point 145c and extend upward and downward respectively (extend in different directions), the smaller the included angle between the second upper diversion section 145a and the second lower diversion section 145b, the closer the distance between the second upper diversion section 145a and the second lower diversion section 145b, making the space above the second upper diversion section 145a or / and below the second lower diversion section 145b larger, and more cold air can be diverted to the first right air outlet 112d and the second right air outlet 113d, increasing the air output of the first right air outlet 112d and the second right air outlet 113d.

[0140] Specifically, the included angle between the second upper diversion section 145a and the second lower diversion section 145b can be 25°, 35°, 40°, 45°, 55°, 60°, 65°, 70°, etc.

[0141] In some embodiments, when the flow guiding member 130 turns from the second diversion portion 145 to the first diversion portion 142, the air guiding angle of the first diversion portion 142 is smaller than that of the second diversion portion 145.

[0142] Among them, the air guiding angle of the first diversion portion 142 refers to the included angle between the first upper diversion section 142a and the first lower diversion section 142b. Since the first upper diversion section 142a and the first lower diversion section 142b are not of the same shape (part of the first upper diversion section 142a is linear and part is arc-shaped, and the arc degrees of different segments may be different; part of the first lower diversion section 142b is linear and part is arc-shaped, and the arc degrees of different segments may be different), the included angle between the first upper diversion section 142a and the first lower diversion section 142b refers to the included angle at the first connection point 142c.

[0143] The air guiding angle of the second air guiding part 145 refers to the included angle between the second upper air guiding section 145a and the second lower air guiding section 145b. Since the second upper air guiding section 145a and the second lower air guiding section 145b are not of the same shape (part of the second upper air guiding section 145a is linear and part is arc-shaped, and the arc degrees of different sections may vary; part of the second lower air guiding section 145b is linear and part is arc-shaped, and the arc degrees of different sections may vary), the included angle between the second upper air guiding section 145a and the second lower air guiding section 145b refers to the included angle at the second connection point 145c.

[0144] If the air guiding angle of the first air guiding part 142 is smaller than that of the second air guiding part 145, it means that the distance between the first upper air guiding section 142a and the first lower air guiding section 142b is relatively close, and the space above and below the first upper air guiding section 142a and the first lower air guiding section 142b is relatively large. On the contrary, it means that the distance between the second upper air guiding section 145a and the second lower air guiding section 145b is relatively close, and the space above and below the second upper air guiding section 145a and the second lower air guiding section 145b is relatively small. Since the second air guiding part 145 turns to the first air guiding part 142, the corresponding position of the second air guiding part 145 is the air inlet side, and the corresponding position of the first air guiding part 142 is the air outlet side. The air volume on the air inlet side is greater than that on the air outlet side. And the space above and below the first upper air guiding section 142a and the first lower air guiding section 142b is relatively large, while the space above and below the second upper air guiding section 145a and the second lower air guiding section 145b is relatively small, which can balance the air volume flowing to the first left air outlet, the second left air outlet 113c, the first right air outlet and the second right air outlet, making the air volume of the four air outlets roughly balanced and stable.

[0145] In some embodiments, the air guiding member 140 further includes a third air guiding part 146. The third air guiding part 146 is arranged below the air guiding member 130 and is used for guiding the air flow to the second left air outlet 113c and the second right air outlet 113d.

[0146] The third air guiding part 146 is located below the rear shell 123 and can guide the cold air to the second left air outlet 113c and the second right air outlet 113d, making the air volumes of the second left air outlet 113c and the second right air outlet 113d roughly the same, so as to improve the uniformity of the air outlets as much as possible.

[0147] Please refer to Figure 10 and Figure 11 , in some embodiments, the air duct module 100 further includes a fixing part cover plate 160 and a fixing part 150. The housing 120 has an installation groove 128; the fixing part 150 is arranged in the installation groove 128 and is used for fixedly connecting the housing 120 with the cabinet 200 of the refrigeration device, and the cover plate 160 covers the installation groove 128.

[0148] The installation cavity 124 and the installation groove 128 can be two independent cavities, that is, the installation cavity 124 and the installation groove 128 are not connected. When the guide member 130 is installed inside the installation cavity 124 and in the process of fixing the air duct module 100 to the refrigeration equipment, the guide member 130 will not be exposed to the outside, and damage to the guide member 130 during the assembly of the air duct module 100 can be avoided as much as possible.

[0149] Of course, in some other embodiments, the installation cavity 124 and the installation groove 128 may also be partially connected, and no specific limitation is made to this.

[0150] In the embodiment of the present application, for the convenience of description, the height direction, width direction X and thickness direction Y of the shell 120 are defined. As shown in the figure, the mounting groove 128 can be set at the top of the entire shell 120. In the process of installing the air duct module 100 to the refrigeration equipment, the mounting groove 128 is set close to the door body 230 of the refrigeration equipment, that is, the mounting groove 128 is closest to the door body 230 of the refrigeration equipment. During installation, after the door body 230 is opened, it is convenient for the fixing member 150 to pass through the shell 120 and the cabinet 200 of the refrigeration equipment, thereby facilitating the assembly of the air duct module 100.

[0151] In the embodiment of the present application, the fixing member 150 is arranged in the installation groove 128 and can fix the shell 120 and the cabinet 200, and the cover plate 160 covers the installation groove 128, and can shield the fixing member 150 in the installation groove 128, so that the cover plate 160 and the shell 120 can form a whole, and the fixing member 150 can be hidden in the installation groove 128 to avoid the fixing member 150 from being exposed, so that the appearance of the entire air duct module 100 is neat.

[0152] In addition, the cover plate 160 shields the fixing member 150 in the installation groove 128 to prevent the fixing member 150 from being exposed, and can also reduce the corrosion of the fixing member 150 due to the low temperature or condensed water in the refrigeration equipment, and can also increase the service life of the fixing member 150.

[0153] See also Figure 12 In some embodiments, the housing 120 is provided with a fixing hole 129a, which is communicated with the mounting groove 128, and a portion of the fixing member 150 is accommodated in the mounting groove 128, and a portion of the fixing member 150 is passed through the fixing hole 129a for fixed connection with the cabinet 200.

[0154] During the installation process, the fixing member 150 can be first placed in the installation groove 128 and then pushed toward the cabinet 200 so that the fixing member 150 passes through the fixing hole 129 a and is fixedly connected to the cabinet 200 .

[0155] Specifically, the fixing member 150 can be structures such as screws and bolts. Threaded holes can be provided on the cabinet body 200. Threads can be provided on the inner wall of the fixing hole 129a, or threads can be not provided. During the assembly process, first pass the fixing member 150 through the fixing hole 129a, and then rotate the fixing member 150 so that the fixing member 150 can be locked within the cabinet body 200.

[0156] It should be noted that the air duct module 100 is installed within the cabinet body 200 and placed on the bearing surface. The fixing member 150 only plays a fixing role and basically does not bear the gravity of the air duct module 100.

[0157] In some embodiments, the cover plate 160 is snap-connected to the housing 120. After fixing the housing 120 to the cabinet body 200, then cover the cover plate 160 on the installation groove 128 so that the cover plate 160 is snap-connected to the housing 120, and further install the cover plate 160 on the housing 120.

[0158] As for the way of snap-connection between the cover plate 160 and the housing 120, one of the cover plate 160 and the housing 120 can be provided with a snap-connection portion 162, and the other can be provided with a snap-connection hole 129b, and the snap-connection portion 162 is snap-connected to the snap-connection hole 129b. That is, the snap-connection portion 162 can be provided on the cover plate 160 and the snap-connection hole 129b can be provided on the housing 120. It can also be that the snap-connection hole 129b is provided on the cover plate 160 and the snap-connection portion 162 is provided on the housing 120, and no specific limitation is required.

[0159] Taking the example that the snap-connection portion 162 is provided on the cover plate 160 and the snap-connection hole 129b is provided on the housing 120 for specific illustration. The snap-connection portion 162 is provided below the cover plate 160. After the cover plate 160 is snap-connected to the housing 120, the cover plate 160 can also block the snap-connection portion 162, which can avoid the connection position of the snap-connection portion 162 and the snap-connection hole 129b from being exposed, and can improve the appearance beauty of the entire air duct module 100.

[0160] Please refer to Figure 12 and Figure 13 Specifically, the snap-connection portion 162 can include a connection section 162a and a snap-connection section 162b. One end of the connection section 162a is connected to the cover plate 160, and the other section is connected to the snap-connection section 162b. The connection section 162a passes through the snap-connection hole 129b, and the snap-connection section 162b abuts against the side of the snap-connection hole 129b away from the cover plate 160, so that the cover plate 160 can be snap-connected to the housing 120.

[0161] Among them, a plurality of snap - joints 162 and snap - holes 129b can be provided. For example, if the cover plate 160 is rectangular, at least one snap - joint 162 can be provided on each side of the cover plate 160. Correspondingly, a plurality of snap - holes 129b are also provided, and one snap - joint 162 is snapped with one snap - hole 129b. The number of snap - joints 162 and snap - holes 129b can be set according to actual situations, and the specific number can be not limited.

[0162] Please refer to Figure 12 and Figure 14 , in some embodiments, the housing 120 includes a front housing 121 and a rear housing 123. The front housing 121 and the rear housing 123 are connected to form an installation cavity 124, and the installation groove 128 is provided on the rear housing 123.

[0163] Among them, the housing 120 can be a two - section housing 120 or a three - section housing 120. The front housing 121 and the rear housing 123 are in terms of their positions relative to the cabinet body 200 of the refrigeration device. Among the front housing 121 and the rear housing 123, the rear housing 123 is arranged closer to the cabinet body 200, that is, the rear housing 123 is located behind the front housing 121, and the front housing 121 and the rear housing 123 are connected to form an installation cavity 124.

[0164] Since the installation groove 128 is mainly used to accommodate the fixing member 150, and the rear housing 123 is fixedly connected to the cabinet body 200, arranging the installation groove 128 on the rear housing 123 can facilitate the assembly between the rear housing 123 and the cabinet body 200.

[0165] In some embodiments, the rear housing 123 includes a main body 123a and a fixing portion 123b protruding from the main body 123a, and the installation groove 128 is provided on the fixing portion 123b. The fixing portion 123b protruding from the main body 123a means that the fixing portion 123b protrudes from the main body 123a in the direction of the front housing 121. Of course, in order to adapt to the fixing portion 123b, a groove 121d can be provided on the front housing 121, and the fixing portion 123b can be arranged in the groove 121d.

[0166] Since the thickness of the main body 123a is very thin and an installation groove 128 capable of accommodating the fixing member 150 cannot be directly formed on the main body 123a, the installation groove 128 can be arranged on the fixing portion 123b, which can set the installation groove 128 capable of accommodating the fixing member 150 without increasing the thickness of the rear housing 123, simplifying the process and making the structure relatively simple.

[0167] Specifically, the main body 123a and the fixing portion 123b can be integrally formed, which can reduce the manufacturing process of the entire rear housing 123 and can reduce the manufacturing cost of the housing 120.

[0168] In some embodiments, the cover plate 160 is snap-connected to both the front shell 121 and the rear shell 123. Since the thicknesses of the front shell 121 and the rear shell 123 are relatively thin, the snap-connection of the cover plate 160 to both the front shell 121 and the rear shell 123 can improve the fixing stability of the cover plate 160 and reduce the risk of the cover plate 160 detaching.

[0169] Of course, in addition to this, it can also be that the cover plate 160 is only snap-connected to the front shell 121, or the cover plate 160 is only snap-connected to the rear shell 123. The snap-connection methods of the cover plate 160 to the front shell 121 and the rear shell 123 can be the same or different, and no specific limitation is required.

[0170] The foregoing introduced the connection method between the cover plate 160 and the housing 120. Next, the connection method between the front shell 121 and the rear shell 123 will be introduced. In some embodiments, the front shell 121 can be snap-connected to the rear shell 123. As for the specific snap-connection method, snap holes can be provided on the front shell 121, and snap portions can be provided on the rear shell 123, and the snap holes and the snap portions are snap-connected. It can also be that snap holes are provided on the rear shell 123, and snap portions are provided on the front shell 121, and the snap portions and the snap holes are snap-connected.

[0171] Similarly, multiple snap holes and snap portions can be provided, and they can be respectively arranged along the edges of the front shell 121 and the rear shell 123.

[0172] In some other embodiments, it can also be that the front shell 121 has a first connection hole, the rear shell 123 has a second connection hole, and the air duct module 100 further includes a connecting member 170 (see Figure 1 ), and the connecting member 170 passes through the first connection hole and the second connection hole.

[0173] The connecting member 170 can be a screw or a nut. Threads can be provided on the inner walls of the first connection hole and the second connection hole, and the front shell 121 and the rear shell 123 are locked by the connecting member 170.

[0174] It should be noted that the above introduced the connection methods of the two front shells 121 and the rear shell 123, and the two connection methods can exist simultaneously or only one of the connection methods can be selected. That is, the front shell 121 and the rear shell 123 can be connected by both snap-connection and the connecting member 170, or the front shell 121 and the rear shell 123 can be only snap-connected, or the front shell 121 and the rear shell 123 can be only connected by the connecting member 170, and the specific method can be not limited.

[0175] Please refer to Figure 15 and Figure 16 , based on the same inventive concept, the embodiment of the present application further provides a horizontal freezer 10. The horizontal freezer 10 includes a cabinet body 200 and an air duct module 100, and the cabinet body 200 has a receiving cavity 211 for receiving the air duct module 100.

[0176] The horizontal freezer 10 is mainly used for refrigerating items. The cabinet body 200 is the main body 220 structure of the entire horizontal freezer 10, which can provide an installation foundation for structures such as the air duct module 100, the compressor 310, the evaporator 320, and the condenser, and can also play a role in protecting the above-mentioned electronic components and the like.

[0177] Among them, the cabinet body 200 includes a main body 220 and a door body 230 connected to the main body 220. The door body 230 covers the opening of the main body 220. A storage cavity 211 is arranged inside the main body 220, and the items to be refrigerated are arranged in the storage cavity 211. The cold air blown out by the air duct module 100 freezes the items. The main body 220 includes an inner liner 221 and an outer shell 223. The inner liner 221 and the outer shell 223 are filled with a foaming layer. There is an electrical appliance cavity 215 for accommodating the compressor 310 between the inner liner 221 and the outer shell 223, and the electronic control box is also arranged in the electrical appliance cavity 215.

[0178] The air duct module 100 is arranged in the storage cavity 211, and the first air outlet 112, the second air outlet 113, and the air return port 114 are all communicated with the storage cavity 211. The air duct module 100 blows the cold air after being refrigerated by the evaporator 320 into the storage cavity 211 from the first air outlet 112 and the second air outlet 113. The gas in the storage cavity 211 can return to the vicinity of the evaporator 320 through the air return port 114, and after being refrigerated by the evaporator 320, it is blown into the storage cavity 211 again through the first air outlet 112 and the second air outlet 113, and so on in a cycle.

[0179] Please refer to Figure 17 and Figure 18 , in some embodiments, the storage cavity 211 has a bottom surface 213 and a step surface 214 higher than the bottom surface 213, and the air return port 114 is arranged on the step surface 214.

[0180] When the user places the items in the storage cavity 211, they usually start to stack from the bottom of the storage cavity 211, that is, the bottom of the storage cavity 211 is the easiest to be filled with items. If the air return port 114 is directly arranged at the bottom of the box body, the items are likely to block the air return port 114, resulting in the inability of the gas in the storage cavity 211 to return, which is likely to cause the gas in the storage cavity 211 to not circulate, and further cause the cold quantity in the storage cavity 211 to be insufficient, affecting the refrigeration effect.

[0181] In the embodiment of the present application, the air return port 114 is located on the step surface 214, and the height of the step surface 214 is higher than the bottom surface 213 of the storage cavity 211, so that the air return port 114 has a certain height from the bottom surface 213 of the storage cavity 211. When the user stacks the items, the air return port 114 with a certain height is not easily blocked, so that the gas in the storage cavity 211 can circulate, improving the refrigeration effect of the entire horizontal freezer 10.

[0182] Among them, the return air outlet 114 is located on the step surface 214, which does not mean that the return air outlet 114 is arranged on the step surface 214, but means that the return air outlet 114 is located on the step surface 214, that is, the return air outlet 114 can be arranged above the step surface 214, or one side can be abutted against the step surface 214.

[0183] The main body 220 is roughly a cuboid. For the convenience of description, the height direction Z, the width direction X and the thickness direction Y are defined respectively. When the horizontal refrigerator 10 is in use, the vertical direction is the height direction Z, and the projection of the main body 220 in the vertical direction is a rectangle. The direction where the long side is located is the width direction X, and the direction where the wide side is located is the thickness direction Y.

[0184] Since the thickness of the air duct module 100 is smaller than the width, and the width of the air duct module 100 is substantially equal to the thickness of the cabinet 200, the air duct module 100 can be installed on one side of the cabinet 200 in the width direction X, so that the wind blown out from the first air outlet 112 can cover the side formed by the length direction and the width direction X as much as possible. The wind blown out from the first air outlet 112 can cover the interior of the entire cabinet 200, thereby improving the uniformity of freezing as much as possible.

[0185] Similarly, for the convenience of description, six directions are defined, namely, top, bottom, left, right, front, and back. In the height direction Z, the direction close to the opening is top, and the direction close to the bottom surface 213 is bottom. The two directions in the width direction X are left and right, respectively. The installation position of the air duct module 100 is right, and the opposite side is left. In the thickness direction Y, the connection between the door body 230 and the main body 220 is back, and the opposite side is front.

[0186] In some embodiments, the return air outlet 114 is tilted along the height direction Z of the cabinet 200 .

[0187] For the convenience of description, the return air outlet 114 is defined as having a first side 114a and a second side 114b that are relatively arranged, the second side 114b is located above the first side 114a, and the first side 114a is arranged on the step surface 214. Along the height direction Z of the cabinet 200, the inclined arrangement of the return air outlet 114 means that the first side 114a and the second side 114b are staggered in the width direction X or the thickness direction Y, that is, along the height direction Z, the projections of the first side 114a and the second side 114b on the bottom surface 213 are staggered.

[0188] Specifically, the inclination direction of the return air outlet 114 can be toward the bottom surface 213 of the accommodating cavity 211 (that is, the second side 114b is set on the left side of the first side 114a), or toward the opening of the accommodating cavity 211 (that is, the first side 114a is set on the left side of the second side 114b).

[0189] The air return opening 114 is inclined so that the air return opening 114 has a certain angle in the height direction Z. The air return opening 114 can form a small cavity with the step surface 214, thereby providing space for the gas in the accommodation cavity 211 to flow towards the air return opening 114, reducing the risk of the air return opening 114 being blocked, enabling the cold air to circulate in the accommodation cavity 211, and improving the refrigeration effect of the entire horizontal freezer 10. In some embodiments, the air return opening 114 is arranged facing the bottom surface 213, which means that the air return opening 114 is inclined downward, that is, the second side 114b is above the first side 114a and to the left of the first side 114a. Arranging the air return opening 114 facing the bottom surface 213 gives the air return direction of the air return opening 114 a downward inclination trend.

[0190] Since the air return opening 114 is arranged on the step surface 214 and has a certain height from the bottom surface 213 of the accommodation cavity 211, the cold air may not be able to flow into the area between the step surface 214 and the bottom surface 213. Arranging the air return opening 114 facing the bottom surface 213 gives a downward air return direction, so that the cold air can flow into the area between the step surface 214 and the bottom surface 213, and can freeze the items placed between the step surface 214 and the bottom surface 213, thereby improving the freezing effect.

[0191] In some embodiments, along the height direction Z of the cabinet body 200, the air return opening 114 and the step surface 214 at least partially overlap in the projection on the bottom surface 213.

[0192] Since the air return opening 114 is inclined, the projection of the air return opening 114 on the bottom surface 213 is also approximately rectangular. The projections of the air return opening 114 and the step surface 214 on the bottom surface 213 at least partially overlap, that is, the second side 114b may be within the projection of the step surface 214 on the bottom surface 213 or outside the projection of the step surface 214 on the bottom surface 213.

[0193] The fact that the projections of the air return opening 114 and the step surface 214 on the bottom surface 213 at least partially overlap means that it is sufficient to ensure that the first side 114a is located on the step surface 214. The second side 114b can be within the area of the step surface 214 or to the left of the step surface 214, and the position of the first side 114a can be not specifically limited.

[0194] In some embodiments, the horizontal freezer 10 further includes a compressor 310. The cabinet body 200 further has an electrical cavity 215. The compressor 310 is installed in the electrical cavity 215, and the step surface 214 is located above the electrical cavity 215.

[0195] The compressor 310 is an essential component in the refrigeration system of the horizontal freezer 10. A chamber for accommodating the compressor 310 needs to be provided in the cabinet body 200. The electrical chamber 215 and the accommodation chamber 211 are independent chambers. The main body 220 includes an inner liner 221 and an outer shell 223. The accommodation chamber 211 is arranged inside the inner liner 221, and the electrical chamber 215 is arranged between the inner liner 221 and the outer shell 223.

[0196] Since the overall appearance of the entire cabinet body 200 is generally a cuboid, after arranging the electrical chamber 215 between the inner liner 221 and the outer shell 223, the inner liner 221 is not a regular cuboid, that is, a stepped surface 214 will be formed above the electrical chamber 215. By setting the air return opening 114 at this position, the existing structure of the horizontal freezer 10 can be utilized, without the need to separately set a stepped surface 214 higher than the bottom surface 213 inside the accommodation chamber 211. This can not only improve the problem of blockage of the air return opening 114 but also reduce the number of components in the horizontal freezer 10 and the occupation of the volume of the accommodation chamber 211.

[0197] In some embodiments, the cabinet body 200 has a thickness direction Y and a width direction X. The length of the cabinet body 200 in the width direction X is greater than the length in the thickness direction Y, and the air return opening 114 is arranged facing the width direction X.

[0198] Among them, the entire air duct module 100 is installed on the right side of the accommodation chamber 211. The air return opening 114 being arranged facing the width direction X makes the air return direction roughly along the entire width direction X, so that the cold air can flow and circulate roughly within the entire cabinet body 200, improving the refrigeration effect.

[0199] In some embodiments, along the height direction Z of the cabinet body 200, the second air outlet 113 is located at 3 / 5 to 4 / 5 of the cabinet body 200.

[0200] Among them, the second air outlet 113 is arranged at 3 / 5 to 4 / 5 of the cabinet body 200, that is, in the height direction Z of the cabinet body 200 and in the upward direction from the bottom, the second air outlet 113 is roughly located at 0.6 to 0.8 of the cabinet body 200, making the second air outlet 113 roughly located in the middle area of the horizontal freezer 10 in the height direction Z, enabling the horizontal freezer 10 to directly blow air towards the items in the accommodation chamber 211 and freeze the items in the area close to the air duct module 100, improving the refrigeration effect.

[0201] In some embodiments, the horizontal freezer 10 further includes a refrigerating component 330, which is wound around the outer sidewall of the inner container 221 (within the region between the inner container 221 and the outer shell 223), and at least within the region between the step surface 214 and the bottom surface 213. The refrigerating component 330 is connected in series or in parallel with the evaporator 320. Since the air return opening 114 is provided on the step surface 214, there may be a situation where the cold air cannot reach the region between the step surface 214 and the bottom surface 213. By arranging the refrigerating component 330 within the region between the step surface 214 and the bottom surface 213, this region can be cooled by the refrigerating component 330, thereby ensuring the refrigeration effect of the entire horizontal freezer 10.

[0202] The refrigerating component 330 being at least wound within the region between the step surface 214 and the bottom surface 213 means that the refrigerating component 330 can be only wound between the step surface 214 and the bottom surface 213, or can be wound between the step surface 214 and the bottom surface 213 and also be provided above the step surface 214.

[0203] Among them, the refrigerating component 330 can be a refrigeration coil or a patch evaporator, etc.

[0204] In some embodiments, along the height direction Z of the cabinet 200, the air return opening 114 is located at 1 / 4 to 1 / 2 of the cabinet 200. This means that in the vertical direction and in the upward direction from the bottom, the air return opening 114 is within the region of 1 / 4 to 1 / 2 of the cabinet 200, that is, the air return opening 114 is generally located in the lower region of the entire cabinet 200 but is at a certain distance from the bottom surface 213 of the accommodation cavity 211. This enables the cold air to flow as much as possible towards the bottom of the accommodation cavity 211 near the air return opening 114, allowing the cold air to penetrate as much as possible through the internal space of the entire accommodation cavity 211, thereby improving the freezing effect.

[0205] Please refer to Figure 19 and Figure 20 , in some embodiments, a strengthening portion 240 is provided on the cabinet 200, and the fixing member 150 is fixedly connected to the housing 120 and the strengthening portion 240.

[0206] The cabinet 200 includes an inner container 221 and an outer shell 223, and a foaming layer is filled between the inner container 221 and the outer shell 223. Generally, the thickness of the inner container 221 is relatively thin. By providing the strengthening portion 240 between the inner container 221 and the outer shell 223, the fixing member 150 can pass through the strengthening portion 240, improving the fixing effect of the fixing member 150.

[0207] Please refer to Figure 21, in some embodiments, the cabinet body 200 is provided with a first positioning portion 250, and the housing 120 is provided with a second positioning portion 129c, and the first positioning portion 250 cooperates with the second positioning portion 129c.

[0208] The first positioning portion 250 may be a positioning groove, and the second positioning portion 129c may be a protrusion. During the process of assembling the air duct module 100 into the accommodation cavity 211, the second positioning portion 129c may be inserted into the first positioning portion 250 first, so as to position the air duct module 100 and facilitate the installation of the air duct module 100.

[0209] Among them, the first positioning portion 250 is arranged on the step surface 214, and the step surface 214 is higher than the bottom surface of the accommodation cavity 211. Since the overall appearance of the cabinet body 200 is generally a cuboid, after the electrical cavity 215 is arranged between the inner liner 221 and the outer shell 223, the inner liner 221 is not a regular cuboid, that is, a step surface 214 will be formed above the electrical cavity 215. By arranging the entire air duct module at this position, the existing structure of the horizontal freezer 10 can be utilized, and there is no need to separately arrange a step surface 214 higher than the bottom surface 213 in the accommodation cavity 211. This can not only improve the problem of blockage of the air return port 114, but also reduce the number of components in the horizontal freezer 10 and reduce the occupation of the volume of the accommodation cavity 211.

[0210] In the description of this specification, the descriptions with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0211] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present application.

[0212] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present application. The scope of the present application is defined by the claims and their equivalents.

Claims

1. An air duct module, characterized in that: include: A housing having an installation cavity, a first air outlet, a second air outlet and an air return outlet connected to the installation cavity; a flow guide member installed in the installation cavity, capable of allowing external air to enter the installation cavity through the return air port, and the air in the installation cavity to flow out of the installation cavity from the first air outlet and / or the second air outlet; The first air outlet is located above the second air outlet, the second air outlet is located above the return air outlet, and at least a portion of the first air outlet and the second air outlet are located on the same side of the shell.

2. The air duct module according to claim 1, characterized in that: The housing has a first surface and a second surface arranged at an angle, and at least a portion of the first air outlet and the second air outlet are located on the second surface.

3. The air duct module according to claim 2, characterized in that: The first air outlet is arc-shaped.

4. The air duct module according to claim 3, characterized in that: The arc of the first air outlet is 80 degrees to 100 degrees.

5. The air duct module according to any one of claims 1 to 4, characterized in that: The air duct module further includes a flow guide member disposed in the installation cavity, capable of distributing air volume to the first air outlet and the second air outlet.

6. The air duct module according to claim 5, characterized in that: The shell includes a front shell and a rear shell, the front shell and the rear shell are connected to form the installation cavity, the first air outlet, the second air outlet and the return air outlet are arranged on the front shell, and the rear shell is provided with an air inlet.

7. The air duct module according to claim 6, characterized in that: The flow guide is installed on the rear shell and is sealed with the front shell.

8. The air duct module according to claim 7, characterized in that: The flow guide member is integrally formed with the rear shell.

9. The air duct module according to any one of claims 1 to 4, characterized in that: The shell has a mounting groove; the air duct module also includes a fixing member and a cover plate, the fixing member is arranged in the mounting groove and is used to fix the shell and the cabinet of the refrigeration equipment, and the cover plate covers the mounting groove.

10. A horizontal refrigerator, characterized in that: It comprises a cabinet and an air duct module as claimed in any one of claims 1 to 9, wherein the cabinet has a containing cavity, and the air duct module is installed in the containing cavity.

11. The horizontal refrigerator according to claim 10, characterized in that: The accommodating cavity has a bottom surface and a step surface higher than the bottom surface, and the return air port is located on the step surface.

12. The horizontal freezer according to claim 11, characterized in that: Along the height direction of the cabinet, the return air outlet is located at 1 / 4 to 1 / 2 of the cabinet.

13. The horizontal refrigerator according to claim 10, characterized in that: Along the height direction of the cabinet, the second air outlet is located at 3 / 5 to 4 / 5 of the cabinet.

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