Refrigeration equipment

Abstract

The utility model discloses refrigeration equipment, and belongs to the technical field of refrigeration equipment. The refrigeration equipment comprises a box body, an air duct structure and an evaporator, the air duct structure comprises a shell and a fan assembly, the mounting cavity is provided with a mounting top wall, the mounting top wall is provided with a first air supply outlet, and the first air supply outlet is used for supplying air to the first cavity; the fan assembly is arranged in the mounting cavity, and air in the mounting cavity can be blown to the first cavity through the first air supply opening. Air is supplied to the first cavity through the first air supply outlet of the mounting top wall, so that opening of a hole between the first cavity and the mounting cavity is avoided, the heat insulation effect of the first cavity is improved, and the temperature of the first cavity is favorably maintained.

Description

Technical Field

[0001] This application belongs to the field of refrigeration equipment technology, and particularly relates to a refrigeration device. Background Technology

[0002] In refrigeration equipment, the air duct structure includes an air duct, a volute, and a fan assembly installed on the volute. The air duct connects the volute and the chamber. Driven by the fan assembly, cold air is blown into the chamber through the air duct. However, if the air duct is too long, the airflow path will be too long, resulting in low air delivery efficiency. Summary of the Invention

[0003] This application aims to at least partially solve the technical problem of low air supply efficiency. To this end, this application provides a refrigeration device.

[0004] This application provides a refrigeration device, comprising:

[0005] Box,

[0006] An air duct structure, installed inside the housing, divides the housing into a first chamber and a second chamber.

[0007] The air duct structure includes a housing and a fan assembly. The housing has a mounting cavity, which has a mounting top wall and a mounting side wall. The mounting top wall has a first air outlet, and the mounting side wall has a second air outlet. The fan assembly is disposed in the mounting cavity, enabling air in the mounting cavity to be blown into the first chamber through the first air outlet and into the second chamber through the second air outlet.

[0008] An evaporator is disposed inside the mounting cavity.

[0009] In an optional embodiment of this application, the refrigeration device further includes a first air outlet component, which connects the first air outlet and the first chamber and is used to supply air to the first chamber. The first air outlet component is at least partially disposed in the first chamber and is installed on the top wall and / or rear wall of the first chamber.

[0010] In an optional embodiment of this application, the first air outlet component has a ventilation cavity, a first air outlet and a second air outlet, the first air outlet being located at the top of the first cavity and the second air outlet being located at the rear of the first cavity;

[0011] The ventilation cavity allows air blown from the first air inlet to enter the first chamber through at least one of the first air outlet and the second air outlet.

[0012] In an optional embodiment of this application, the first air outlet component includes a body component and a first air outlet component, and the ventilation cavity is formed in the body component; the first air outlet component is arranged side by side with the housing, the body component is connected to the first air outlet component and the first air supply port, and the first air outlet component is used to supply air to the first chamber; the first air outlet component is disposed inside the first chamber, and the body component is at least partially disposed outside the first chamber.

[0013] In an optional embodiment of this application, the housing includes an inner liner, the outer surface of which is provided with a mounting recess, the main body is located outside the inner liner and partially located in the mounting recess; the first air outlet is located inside the first cavity.

[0014] In an optional embodiment of this application, the inner liner is provided with a connecting portion, the inner side of the connecting portion forms a connecting groove for fixing the housing of the refrigeration equipment, and the outer side of the connecting portion forms a connecting protrusion; the body component is provided with a connecting groove, and the connecting protrusion is located in the connecting groove.

[0015] In an optional embodiment of this application, one of the first air outlet component and the body component is provided with a groove, and the other is provided with a locking protrusion. The locking protrusion engages with the groove, and the inner liner has a through hole through which the locking protrusion passes.

[0016] In an optional embodiment of this application, the housing further includes an inner liner, a foam layer, and an outer shell, wherein the foam layer is disposed between the outer shell and the inner liner; the foam layer is provided with a mounting groove, and the main body component is at least partially located within the mounting groove.

[0017] In an optional embodiment of this application, the refrigeration device further includes a second air outlet component, which is installed on the top wall and / or rear wall of the second chamber; the second air outlet component has a third air outlet, which communicates with the second air supply outlet, and the third air outlet is spaced apart from the housing along the width direction of the housing.

[0018] In an optional embodiment of this application, the fan assembly further includes a volute and a fan installed inside the volute. The volute is provided with a first vent and a second vent, the first vent being connected to the first air outlet and the second vent being connected to the second air outlet.

[0019] In an optional embodiment of this application, the refrigeration device further includes a damper assembly, which is installed on the volute and used to open or close the first vent. Attached Figure Description

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

[0021] Figure 1 A schematic diagram of the structure of the refrigeration equipment provided in the embodiments of this application is shown.

[0022] Figure 2 A schematic diagram of the air duct structure of the refrigeration equipment provided in the embodiment of this application is shown.

[0023] Figure 3 A partial structural schematic diagram of the refrigeration equipment provided in an embodiment of this application is shown.

[0024] Figure 4 A schematic diagram of the first air outlet component of the air duct structure of the refrigeration equipment provided in this application embodiment is shown.

[0025] Figure 5 A schematic diagram of the main body of the air duct structure of the refrigeration equipment provided in the embodiment of this application is shown.

[0026] Figure 6 An exploded view of the first air outlet component of the air duct structure of the refrigeration equipment provided in an embodiment of this application is shown.

[0027] Figure 7 A schematic diagram of the volute and damper assembly of the air duct structure of the refrigeration equipment provided in the embodiments of this application is shown.

[0028] Figure 8 This paper shows a schematic diagram of the internal structure of the air duct structure of the refrigeration equipment provided in an embodiment of this application.

[0029] Figure 9 A schematic diagram of the structure of the inner liner of the refrigeration equipment provided in this application embodiment is shown.

[0030] Figure 10 A schematic diagram of the structure of the refrigeration equipment provided in an embodiment of this application is shown.

[0031] Attached reference numerals: 10 - Refrigeration equipment, 100 - Air duct structure.

[0032] 120 - Housing, 121 - Mounting cavity, 121a - Mounting top wall, 121b - Mounting side wall, 122 - First air supply outlet, 123 - Second air supply outlet, 123a - Baffle plate, 124 - First return air outlet, 125 - Second return air outlet

[0033] 130 - Fan assembly, 131 - Volute, 131a - First vent, 131b - Second vent, 131c - Fixing cavity, 131d - Air inlet, 131e - Mounting slot, 131f - Air guide surface, 132 - Fan, 133 - Extension, 134 - Main body, 135 - Extension, 135a - First shell section, 135b - Second shell section

[0034] 140 - First air outlet component; 141 - Ventilation cavity; 142 - Body component; 142a - Engaging groove; 142b - Connecting groove; 142c - Barb; 142d - Spring piece; 142e - Fixing section; 142f - Extension section; 143 - First air outlet component; 143a - First air outlet; 143b - Second air outlet; 143c - Engaging protrusion; 143d - Fourth air outlet; 144 - First air outlet section; 145 - Second air outlet section.

[0035] 150 - Second air outlet component, 151 - Connector, 152 - Second air outlet component, 152a - Third air outlet, 152b - First fixing part, 152c - Second fixing part.

[0036] 160 - Damper assembly, 161 - Body, 161a - Vent, 162 - Cover plate, 163 - Seal,

[0037] 200 - Inner liner, 210 - First chamber, 220 - Second chamber, 230 - Inlet / outlet, 240 - Mounting recess, 250 - Connecting part, 251 - Connecting groove, 252 - Connecting protrusion, 260 - Foaming chamber

[0038] 300-Evaporator

[0039] 400 - Casing

[0040] 500 - Door body, X - Width direction, Y - Thickness direction, Z - Height direction. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not 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 creative effort are within the scope of protection of the present invention.

[0042] 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 of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0043] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0044] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0045] Refrigeration equipment is a specialized storage tool used to store various items that require freezing, keeping food or other items frozen. The refrigeration system of a refrigeration equipment consists of a compressor, condenser, capillary tube, evaporator, and other components. Through the continuous circulation of refrigerant, it transfers heat from inside the freezer to the outside, achieving the purpose of cooling.

[0046] In related technologies, refrigeration equipment has multiple chambers, each of which can be configured with different temperatures to meet different storage requirements. This can be achieved by placing an air duct structure within the inner liner of the refrigeration equipment to divide the inner liner into different chambers. However, since the air outlets on the air duct structure are typically located on the side wall of the air duct structure, this affects the insulation effect of the chambers and makes it difficult to independently adjust the temperature of each chamber.

[0047] This application is described below with reference to the accompanying drawings and specific embodiments:

[0048] Please see Figure 1 and Figure 3 This application provides a refrigeration device, including a housing and an air duct structure 100. The air duct structure 100 is disposed in the housing to divide the housing into a first chamber 210 and a second chamber 220. The air duct structure 100 is used to supply air to the refrigeration device 10. The air duct structure 100 enables cold air to flow in the first chamber 210 and the second chamber 220 within the refrigeration device 10 to achieve a freezing effect.

[0049] The refrigeration device 10 can be a refrigerator or a freezer. In this embodiment, for ease of description, the refrigeration device 10 is used as an example. When the refrigeration device 10 is other devices, the same principle applies.

[0050] The refrigeration device 10 is roughly rectangular. For ease of description, the height direction Z, width direction X, and thickness direction Y are defined. In the operating state of the refrigeration device 10, the vertical direction is the height direction Z, and the projection of the refrigeration device 10 in the vertical direction is a rectangle. The direction of the longer side is the width direction X, and the direction of the shorter side is the thickness direction Y.

[0051] For ease of description, six directions are defined: up, down, left, right, front, and back. Specifically, in the height direction (Z), the two directions are up and down; in the width direction (X), the two directions are left and right. In the thickness direction (Y), the connection point between the door 500 and the housing is front, and the opposite side is back.

[0052] Please see Figure 3 and Figure 7 In this embodiment of the application, the air duct structure 100 includes a housing 120, a fan assembly 130, and an evaporator 300. The housing 120 has a mounting cavity 121, the mounting cavity 121 has a mounting top wall 121a, and the mounting top wall 121a has a first air outlet 122, which is used to supply air to the first chamber 210. The fan assembly 130 is disposed in the mounting cavity 121, which enables the air in the mounting cavity 121 to be blown to the first chamber 210 through the first air outlet 122.

[0053] The fan assembly 130 is used to drive the airflow, so that the air in the mounting cavity 121 is blown into the first chamber 210 through the first air outlet 122 and into the second chamber 220 through the second air outlet 123.

[0054] The first air outlet 122 is located on the top wall of the mounting cavity 121. The first ventilation opening 131a is connected to the first air outlet 122. Cold air flows through the first ventilation opening 131a and the first air outlet 122 to the outside of the mounting cavity 121 and then blows towards the first chamber 210, avoiding direct connection between the mounting cavity 121 and the first chamber 210, thus reducing the impact of the temperature of the mounting cavity 121 on the first chamber 210. Air is supplied to the first chamber 210 through the first air outlet 122 on the top wall of the mounting cavity 121a, thus avoiding the need for an opening between the first chamber 210 and the mounting cavity 121, improving the heat insulation effect of the first chamber 210, and helping to maintain the temperature of the first chamber 210.

[0055] The mounting top wall 121a refers to the upper wall of the housing 120; that is, under normal operating conditions of the refrigeration equipment 10, the mounting top wall 121a is located on the upper side of the housing 120.

[0056] In some embodiments, the mounting cavity 121 has a mounting sidewall 121b, the mounting sidewall 121b has a second air outlet 123, the second air outlet 123 is used to supply air to the second chamber 220, and the second vent 131b is connected to the second air outlet 123 and blows air to the second chamber 220 through the second air outlet 123.

[0057] The second air outlet 123 is located on the side wall of the mounting cavity 121. The second air outlet 123 can directly deliver cold air to the second chamber 220 through the second air outlet 123 on the mounting side wall 121b, reducing the path of cold air flow and increasing air outlet efficiency. The first air outlet 122 is located on the top wall of the mounting cavity 121, and the second air outlet 123 is located on the side wall of the mounting cavity 121. The cold air in the mounting cavity 121 flows in different directions, reducing the possibility of air flow between the first chamber 210 and the second chamber 220, so as to isolate the first chamber 210 and the second chamber 220 as much as possible, reduce the heat transfer between the first chamber 210 and the second chamber 220, and help maintain the temperature difference between the first chamber 210 and the second chamber 220.

[0058] The mounting side wall 121b refers to the left or right wall of the housing 120; that is, under normal operating conditions of the refrigeration equipment 10, the mounting top wall 121a is located on the left or right side of the housing 120. The mounting side wall 121b can be located on the side of the housing 120 facing the first chamber 210, or on the side of the housing 120 facing the second chamber 220.

[0059] The air duct structure 100 can supply cold air to the first chamber 210 and the second chamber 220 to reduce the temperature of the first chamber 210 and the second chamber 220. When the temperature of the second chamber 220 is lower than that of the first chamber 210, the second chamber 220 reaches the set temperature. The air duct structure 100 then stops supplying air to the second chamber 220 and continues to supply air to the first chamber 210. The air duct structure 100 can be located between the first chamber 210 and the second chamber 220 to isolate them. Since the first air outlet 122 is located on the top wall of the mounting cavity 121 and the second air outlet 123 is located on the side wall of the mounting cavity 121, when the air duct structure 100 stops supplying air to the second chamber 220, the heat transfer between the air duct structure 100 and the second chamber 220 can be reduced so that the second chamber 220 can be maintained within the set temperature range. Of course, the air duct structure 100 can also deliver hot air to the first chamber 210 and the second chamber 220, and this application embodiment does not make any special limitation on this.

[0060] In some embodiments, the fan assembly 130 further includes a volute 131 and a fan 132 installed within the volute 131. The volute 131 is provided with a first vent 131a and a second vent 131b. The first vent 131a is used to supply air to the first chamber 210, and the second vent 131b is used to supply air to the second chamber 220. An evaporator 300 is installed in the mounting cavity 121 and is used to absorb heat from the mounting cavity 121 to generate cool air.

[0061] By providing a first vent 131a and a second vent 131b on the volute 131, the air outlet efficiency of the volute 131 is improved, and the air delivery is accelerated. The fan 132, as a power source, can drive the gas flow within the volute 131 to blow cold air through the first vent 131a and the first air outlet 122 into the first chamber 210, or blow cold air through the second vent 131b into the second chamber 220. By providing different vents to the first chamber 210 and the second chamber 220, the air delivery status of the volute 131 can be controlled for different chambers.

[0062] The volute 131 is provided with an air inlet 131d, which is roughly circular. The volute 131 can be installed at the air inlet 131d.

[0063] Please see Figure 9 and Figure 10 The refrigeration equipment 10 is mainly used for refrigerating items. The cabinet is the main structure 161 of the entire refrigeration equipment 10. It can provide an installation base for the air duct structure 100, compressor, evaporator 300, condenser and other structures, and can also protect the aforementioned electronic components.

[0064] The enclosure is roughly rectangular. For ease of description, the height direction Z, width direction X, and thickness direction Y are defined. In the operating state of the refrigeration device 10, the vertical direction is the height direction Z, and the projection of the main body 161 in the vertical direction is a rectangle. The direction of the longer side is the width direction X, and the direction of the shorter side is the thickness direction Y.

[0065] Since the thickness of the air duct structure 100 is relatively small compared to its width, and the width of the air duct structure 100 is basically equal to the thickness of the housing, the air duct structure 100 can be installed in the middle of the width direction X of the housing to divide the housing into a first chamber 210 and a second chamber 220. The specific installation position of the air duct structure 100 can be adjusted according to the size ratio of the first chamber 210 and the second chamber 220. By using the air duct structure 100 to separate the first chamber 210 and the second chamber 220, the air duct structure 100 can both isolate the first chamber 210 and the second chamber 220 and meet the air supply needs of the first chamber 210 and the second chamber 220, making the structure of the refrigeration equipment 10 more reasonable. The air duct structure 100 is located between the first chamber 210 and the second chamber 220, which facilitates simultaneous air supply to the first chamber 210 and the second chamber 220, reduces the air supply path, and improves the air supply efficiency.

[0066] The air duct structure 100 is applied to the refrigeration equipment 10 and installed inside the housing of the refrigeration equipment 10. It enables the air inside the refrigeration equipment 10 to circulate, so that the air inside the refrigeration equipment 10 can be cooled by the evaporator and then blown onto the frozen items. It can be considered that the air duct structure 100 is mainly used to blow cold air into the refrigeration equipment 10, so that the cold air can circulate inside the refrigeration equipment 10, and to ensure that the temperature in the same chamber of the refrigeration equipment 10 is approximately the same as possible, thereby reducing the temperature difference in the same chamber.

[0067] The housing 120 is the basic component of the duct structure 100, providing an installation base for other structures within the duct structure 100. Structures such as the fan assembly 130 can be installed on the housing 120, allowing the duct structure 100 to form a unified whole, facilitating its installation and transportation. Simultaneously, the housing 120 also protects the fan assembly 130 and other structures, reducing damage from external structures.

[0068] In this embodiment of the application, for ease of description, the height direction Z, width direction X, and thickness direction Y of the housing 120 are defined.

[0069] The air duct structure 100 can be installed inside the refrigeration equipment 10. The first chamber 210 can be the freezer chamber of the refrigeration equipment 10, and the second chamber 220 can be the variable temperature chamber of the refrigeration equipment 10. The temperature of the variable temperature chamber can be adjusted to suit different storage requirements, and the temperature range of the variable temperature chamber is -3 to 5℃. Generally, the temperature of the freezer chamber is lower than that of the variable temperature chamber. The air duct structure 100 is set between the freezer chamber and the variable temperature chamber to isolate them.

[0070] Please see Figure 1 and Figure 3In some embodiments, the air duct structure 100 further includes a first air outlet component 140, which connects the first air outlet 122 and the first chamber 210 and is used to supply air to the first chamber 210.

[0071] Air can be supplied to the first chamber 210 through the first air outlet component 140, eliminating the need to open an air outlet on the side wall of the mounting cavity 121 facing the second chamber 220. When the air duct structure 100 stops supplying air to the second chamber 220, the impact of the air duct structure 100 on the second chamber 220 is reduced, making it easier to maintain the temperature of the second chamber 220. Supplying air to the first chamber 210 through the first air outlet component 140 makes the air intake path of the first chamber 210 singular and controllable, facilitating temperature control of the first chamber 210.

[0072] The first air outlet component 140 is located outside the mounting cavity 121 to avoid occupying the space of the mounting cavity 121. Through the first air outlet component 140, the direct connection between the second chamber 220 and the air duct structure 100 can be reduced, and the heat insulation effect of the second chamber 220 can be improved without delivering air to the second chamber 220.

[0073] Please see Figure 1 and Figure 3 In some embodiments, the first air outlet component 140 is at least partially disposed within the first chamber 210. The first air outlet component 140 extends from the inner wall of the first chamber 210 into the first chamber 210 to deliver airflow, which facilitates the uniform diffusion of cold air within the first chamber 210. The first air outlet component 140 may be entirely or partially located within the first chamber 210. By providing the first air outlet component 140, cold air from the casing 120 can be delivered to a specific location within the first chamber 210, improving the freezing effect. Since items are generally stacked from the bottom to the top of the first chamber 210, and the first air outlet component 140 is installed on the top wall of the first chamber 210, the space of the first chamber 210 can be fully utilized to maximize its capacity. Items are typically taken out or placed through the front opening of the first chamber 210. The first air outlet component 140 is installed on the rear wall of the first chamber 210 to ensure that cold air blows from the rear to the front of the first chamber 210 as much as possible, reducing the possibility of cold air overflow. The first air outlet component 140 can also be installed on the top and rear walls of the first chamber 210.

[0074] Please see Figure 4In some embodiments, the first air outlet component 140 has a ventilation cavity 141, a first air outlet 143a and a second air outlet 143b, the first air outlet 143a being located at the top of the first chamber 210 and the second air outlet 143b being located at the rear of the first chamber 210; the ventilation cavity 141 allows air blown from the first air outlet 122 to enter the first chamber 210 through at least one of the first air outlet 143a and the second air outlet 143b.

[0075] By supplying air to the first chamber 210 through the first air outlet 143a and the second air outlet 143b, the efficiency of air supply to the first chamber 210 can be increased. The first air outlet 143a is located at the top of the first chamber 210, and the second air outlet 143b is located at the rear of the first chamber 210. Air can be supplied to the first chamber 210 from multiple directions, making the airflow inside the first chamber 210 more uniform, reducing the temperature difference between different locations inside the first chamber 210, and reducing the problem of uneven refrigeration or freezing of food caused by temperature differences.

[0076] The refrigeration device 10 has a loading / unloading port 230, which connects to the first chamber 210 and the second chamber 220. Items can be retrieved from either chamber 210 or 220 through the loading / unloading port 230, and items to be stored can also be placed in either chamber 210 or 220. The loading / unloading port 230 is located at the front of the device, and the door 500 of the refrigeration device 10 covers the loading / unloading port 230. When a user retrieves or places items through the loading / unloading port 230, cold air may overflow from it. By placing the second air outlet 143b at the rear of the first chamber 210, the possibility of cold air overflowing from the loading / unloading port 230 can be reduced, saving energy. The rear of the first chamber 210 is the side of the first chamber 210 furthest from the loading / unloading port 230.

[0077] The airflow first passes through the ventilation cavity 141, and then enters the first chamber 210 through at least one of the first air outlet 143a and the second air outlet 143b. This minimizes the temperature difference between the airflow passing through the first air outlet 143a and the second air outlet 143b, improves the uniformity of the cold air in the first chamber 210, and thus improves the cooling effect.

[0078] A first return air inlet 124 and a second return air inlet 125 are provided on the mounting side wall 121b of the mounting cavity 121. The first return air inlet 124 is connected to the first chamber 210, and the gas in the first chamber 210 enters the mounting cavity 121 through the first return air inlet 124. The second return air inlet 125 is connected to the second chamber 220, and the gas in the second chamber 220 enters the mounting cavity 121 through the second return air inlet 125.

[0079] Please see Figure 1 In some embodiments, the height of the second air outlet 143b is lower than the height of the first air outlet 143a.

[0080] It is understandable that the first air outlet 143a and the second air outlet 143b are arranged sequentially from high to low. The first air outlet 143a is closer to the top of the first chamber 210 than the second air outlet 143b, while the second air outlet 143b is roughly located in the middle area of ​​the first chamber 210. This allows air to enter at different heights within the first chamber 210, thereby enabling the cold air to be blown more evenly to different areas of the first chamber 210, resulting in a better cooling effect.

[0081] The first return air vent 124 is located near the bottom of the first chamber 210, allowing the cold air to form multiple different circulation zones, thus improving the cooling effect. Specifically, when users place items, they generally stack them from bottom to top, with more items at the bottom requiring more cooling. A second air outlet 143b is placed between the first air outlet 143a and the first return air vent 124, allowing the cold air to exit roughly from the middle area of ​​the cabinet and quickly reach the bottom area of ​​the first chamber 210. Through the cooperation of the first air outlet 143a and the second air outlet 143b, the cold air can be more evenly distributed to different areas within the first chamber 210, resulting in a better cooling effect.

[0082] Please see Figure 1 and Figure 4 In some embodiments, at least one of the first air outlet 143a and the second air outlet 143b is arranged along the width direction of the first chamber 210.

[0083] The length of the first air outlet 143a is arranged along the width of the first chamber 210, so that the cold air from the first air outlet 143a is evenly distributed in the width direction of the first chamber 210, improving the uniformity of the internal temperature of the first chamber 210 and thus improving the freezing effect. The first air outlet 143a is located at the top of the first chamber 210, so the probability of items piling up to the top of the first chamber 210 is small, and the resistance of the cold air blown out of the first air outlet 143a is small, so the flow of the cold air blown out of the first air outlet 143a is better. The length of the first air outlet 143a is arranged along the width direction of the first chamber 210, so that the flow of the cold air blown out of the first air outlet 143a in the width direction of the first chamber 210 is more uniform, minimizing the temperature difference between different parts of the first chamber 210 and reducing the problem of uneven refrigeration or freezing of food caused by temperature differences.

[0084] The length of the second air outlet 143b is arranged along the width of the first chamber 210, so that the cold air from the second air outlet 143b is evenly distributed in the width direction of the first chamber 210, improving the uniformity of the internal temperature of the first chamber 210 and thus improving the freezing effect. The second air outlet 143b is located at the rear of the first chamber 210, so that the cold air blown out by the second air outlet 143b flows from the rear to the front of the first chamber 210. The length of the second air outlet 143b is arranged along the width of the first chamber 210, so that the cold air blown out by the first air outlet 143a flows more evenly in the width direction of the first chamber 210. The cold air blown out by the first air outlet 143a has a large range of action in the width direction of the first chamber 210, minimizing the temperature difference between different locations inside the first chamber 210 and reducing the problem of uneven refrigeration or freezing of food caused by temperature differences.

[0085] The length direction of the first air outlet 143a can be set along the width direction of the first chamber 210, or the length direction of the second air outlet 143b can be set along the width direction of the first chamber 210. In this embodiment, the length directions of both the first air outlet 143a and the second air outlet 143b are set along the width direction of the first chamber 210, so that the cold air can reach all areas in the first chamber 210 as much as possible.

[0086] In some embodiments, a fourth air outlet 143d is formed between the first air outlet component 140 and the rear wall of the first chamber 210. The fourth air outlet 143d faces the bottom of the first chamber 210, so that cold air can be blown to the bottom of the first chamber 210, thereby cooling the food at the bottom of the first chamber 210. The fourth air outlet 143d can increase the flow direction of cold air in the first chamber 210, so that the distribution of cold air inside the first chamber 210 is more uniform, and the temperature difference between different parts of the first chamber 210 is reduced.

[0087] Please see Figure 1 and Figure 4 In some embodiments, the first air outlet component 140 includes a body component 142 and a first air outlet component 143. The ventilation cavity 141 is at least partially formed in the body component 142. The first air outlet component 143 is arranged side by side with the housing 120. The body component 142 connects the first air outlet component 143 and the first air outlet 122. The first air outlet component 143 is used to supply air to the first chamber 210.

[0088] The first air outlet 143 is arranged side by side with the housing 120. The first air outlet 143 can guide the airflow from the first air outlet 122 at the top of the mounting cavity 121 into the first chamber 210 through the body 142, so as to realize the air supply of the first chamber 210.

[0089] The first chamber 210 is formed on one side of the air duct structure 100. The first air outlet 143 is arranged side by side with the housing 120. The first air outlet 143 can be set inside the first chamber 210, which is conducive to precise air delivery to the first chamber 210. The first air outlet 143a and the second air outlet 143b are set on the first air outlet 143. The specific positions of the first air outlet 143a and the second air outlet 143b can be arranged through the first air outlet 143, so that the airflow inside the first chamber 210 is more uniform.

[0090] Air is supplied to the first chamber 210 through the first air outlet 143. Multiple air outlets at different heights can be provided on the first air outlet 143. For example, by providing multiple first air outlets 143a or second air outlets 143b on the first air outlet 143, the air supply efficiency can be improved while reducing the number of openings on the inner wall of the first chamber 210, thereby improving the heat insulation effect of the first chamber 210 and helping to maintain the temperature of the first chamber 210.

[0091] The ventilation cavity 141 is at least partially located within the body component 142, allowing the cold air in the mounting cavity 121 to enter the first air outlet 143, which is arranged parallel to the housing 120, through the body component 142. No opening is needed between the first chamber 210 and the mounting cavity 121 to deliver the cold air from the mounting cavity 121 to the first chamber 210. The ventilation cavity 141 can be entirely located within the body component 142, or partially located within the body component 142 and partially located within the first air outlet 143, as long as the body component 142 can deliver the cold air from the mounting cavity 121 to the first air outlet 143.

[0092] Please see Figure 1 and Figure 4 In some embodiments, the first air outlet 143 includes a first air outlet section 144 and a second air outlet section 145 connected to each other. The first air outlet section 144 is connected to the body 142 and is located at the top of the first chamber 210. The second air outlet section 145 is located at the rear of the first chamber 210. The first air outlet 143 delivers air to the first chamber 210 through at least one of the first air outlet section 144 and the second air outlet section 145.

[0093] The first air outlet 143 delivers air to the first chamber 210 through at least one of the first air outlet section 144 and the second air outlet section 145. The first air outlet section 144 is located at the top of the first chamber 210 and a first air outlet 143a can be provided in the first air outlet section 144. The second air outlet section 145 is located at the rear of the first chamber 210 and a second air outlet 143b can be provided in the second air outlet section 145. This enables air to be delivered to the first chamber 210 from multiple directions, making the airflow inside the first chamber 210 more uniform, reducing the temperature difference between different locations inside the first chamber 210, and reducing the problem of uneven refrigeration or freezing of food caused by temperature differences.

[0094] The first air outlet section 144 and the second air outlet section 145 are connected to form the first air outlet component 143. During installation, there is no need to adjust the relative positions of the first air outlet component 143 and the second air outlet component 152, making installation convenient. After passing through the first air outlet section 144, a portion of the cold air in the main body component 142 is blown from the first air outlet 143a into the first chamber 210, while the other portion flows to the second air outlet section 145 and is blown from the second air outlet 143b into the first chamber 210. A portion of the ventilation cavity 141 is located within the main body component 142, a portion within the first air outlet section 144, and a portion within the second air outlet section 145. This allows the cold air passing through the ventilation cavity 141 to allow the air blown from the first air outlet 122 to enter the first chamber 210 via at least one of the first air outlet 143a and the second air outlet 143b.

[0095] The first air outlet section 144 is located at the top of the first chamber 210, and the second air outlet section 145 is located at the rear of the first chamber 210. Air can be blown into the first chamber 210 from different directions using only one first air outlet component 143, minimizing the number of components inside the first chamber 210 and improving the integration of the air duct structure 100. Only one opening is needed in the first chamber 210 to connect to the first air outlet component 140, reducing the number of openings on the inner wall of the first chamber 210 and improving its heat insulation effect. Furthermore, this arrangement reduces the space occupied by the first air outlet component 143 within the first chamber 210, allowing the first chamber 210 to accommodate as many items as possible and increasing its capacity.

[0096] Please see Figures 4 to 6 In some embodiments, one of the first air outlet member 143 and the body member 142 is provided with a locking groove 142a, and the other is provided with a locking protrusion 143c, the locking protrusion 143c cooperating with the locking groove 142a.

[0097] The engagement of the engagement protrusion 143c and the engagement groove 142a allows the first air outlet 143 and the main body 142 to be connected. The connection between the two can be completed simply by aligning the first air outlet 143 and the main body 142 and pressing or snapping them together, which simplifies the installation process and makes the connection between the first air outlet 143 and the main body 142 simpler and more reliable, thereby improving the stability of the structure.

[0098] In some embodiments, the body component 142 is provided with a locking groove 142a, and the first air outlet component 143 is provided with a locking protrusion 143c; the body component 142 is provided with a barb 142c on the side facing the first air outlet component 143, and a locking groove 142a is formed between the barb 142c and the body component 142; the body component 142 is provided with a spring piece 142d on the side of the barb 142c, and the spring piece 142d is provided with a locking groove 142a.

[0099] Specifically, during the engagement process, the spring piece 142d is pried open, causing the second latch to extend between the barb 142c and the spring piece 142d, thus engaging the second latch within the second groove. Releasing the spring piece 142d allows it to return to its original position, resulting in the first latch engaging within the first groove. A locking block can be provided at the end of the spring piece 142d for easy manual prying.

[0100] Please see Figure 1 and Figure 4 In some embodiments, the body component 142 is at least partially disposed outside the first chamber 210, which can reduce the space occupied by the body component 142 within the first chamber 210 and maximize the capacity of the first chamber 210 to store more items. The body component 142 can be entirely located outside the first chamber 210 or partially located outside the first chamber 210. When the body component 142 is entirely located outside the first chamber 210, it can connect the mounting cavity 121 and the first chamber 210, avoiding the need for openings between the mounting cavity 121 and the first chamber 210. This allows the first chamber 210 to be set independently of the mounting cavity 121, and the mounting cavity 121 and the first chamber 210 are not directly connected, minimizing the influence of the mounting cavity 121 on the temperature of the first chamber 210.

[0101] Please see Figure 2 and Figure 3In some embodiments, there are multiple second air outlets 123, with at least two second air outlets 123 spaced apart along the height direction Z of the housing 120. This allows the cold air blown out by the second air outlets 123 to be directed to different height positions within the second chamber 220, enabling the cold air to flow within different heights of the second chamber 220 and covering areas at different heights of the second chamber 220 as much as possible. This improves the uniformity of the cold air within the second chamber 220, thereby enhancing the freezing effect. Providing multiple second air outlets 123 can improve the efficiency of cold air delivery, thus enhancing the freezing effect.

[0102] Please see Figure 1 and Figure 3 In some embodiments, the air duct structure 100 further includes a second air outlet component 150, which has a third air outlet 152a. The third air outlet 152a is connected to the second air supply outlet 123. Along the width direction X of the housing 120, the third air outlet 152a is spaced apart from the housing 120.

[0103] The second air outlet component 150 delivers the air from the second air inlet 123 to the second chamber 220 through the third air outlet 152a, so that the cold air is blown to all areas of the second chamber 220 as much as possible. Since the second air inlet 123 is located on the side wall of the housing 120 and the air duct structure 100 is located on one side wall of the second chamber 220, the opposite side wall is furthest from the air duct structure 100, so that the frozen items near the opposite side wall receive the least amount of cold air. Along the width direction X of the housing 120, the third air outlet 152a is spaced apart from the housing 120, and the third air outlet 152a blows cold air as far as possible to the side of the housing 120 away from the air duct structure 100, so that the cold air flows to a farther position, thereby freezing the frozen items that are far away from the housing 120 of the air duct structure 100.

[0104] Please see Figure 1 and Figure 3 In some embodiments, the second air outlet component 150 is mounted on the top of the second chamber 220, such that the third air outlet 152a is located on the top of the housing 120. Since it is less likely that items will be placed on the top of the second chamber 220, the resistance to the cold air is low, resulting in greater airflow at the top of the second chamber 220. This allows the cold air blown from the third air outlet 152a to be directed as far as possible towards the other side of the width direction X of the second chamber 220, ensuring that areas farther from the air duct structure 100 are reached by the cold air.

[0105] Please see Figure 1 and Figure 3 In some embodiments, the third air outlet 152a is located at the rear of the second chamber 220.

[0106] The rear of the second chamber 220 is the side of the second chamber 220 furthest from the access port 230. When air is being supplied to the second chamber 220, if the user opens the door 500 of the refrigeration unit 10 and uses the access port 230 to retrieve or place items, the cold air flowing inside the second chamber 220 can easily overflow from the access port 230. Placing the third air outlet 152a at the rear of the second chamber 220 extends the path of the cold air blown from the third air outlet 152a to the access port 230, minimizing the overflow of cold air from the access port 230 and helping to maintain the temperature of the second chamber 220.

[0107] Please see Figure 1 and Figure 3 In some embodiments, the third air outlet 152a is located at the top and rear of the second chamber 220, and the third air outlet 152a of the second air outlet component 150 is connected to the second air supply port 123 located at the top of the housing 120 and near the rear of the housing 120, so that the air blown out of the second air supply port 123 flows to the third air outlet 152a through the shortest path.

[0108] Please see Figure 1 and Figure 3 In some embodiments, the air outlet 152a is set at an angle to the air outlet 123. That is, the air outlet 152a and the air outlet 123 intersect, so that cold air can be blown into the second chamber 220 from different directions, improving the uniformity of the cold air flow in the second chamber 220, thereby making the freezing effect inside the second chamber 220 better.

[0109] Please see Figure 1 and Figure 3 In some embodiments, the length direction of the third air outlet 152a is arranged along the width direction of the second chamber 220, so that the cold air from the third air outlet 152a is evenly distributed in the width direction of the second chamber 220, improving the uniformity of the internal temperature of the second chamber 220 and thus improving the freezing effect. The third air outlet 152a is located at the top of the second chamber 220, so the probability of items piling up to the top of the second chamber 220 is small, and the resistance of the cold air blown out by the third air outlet 152a is small, so the flow of the cold air blown out by the third air outlet 152a is better. The length direction of the third air outlet 152a is arranged along the width direction of the second chamber 220, so that the flow of the cold air blown out by the third air outlet 152a in the width direction of the second chamber 220 is more uniform, minimizing the temperature difference between different positions inside the second chamber 220 and reducing the problem of uneven refrigeration or freezing of food caused by temperature differences.

[0110] Please see Figure 1 and Figure 3In some embodiments, the second air outlet component 150 includes a connector 151 and a second air outlet component 152, with the connector 151 connecting the second air inlet 123 and the second air outlet component 152; a third air outlet 152a is disposed on the second air outlet component 152 along the width direction X of the housing 120, and the second air outlet component 152 is arranged side by side with the housing 120. The connector 151 can be bent so that the connector 151 is as close as possible to the inner wall of the second chamber 220, so as to minimize the impact of the connector 151 on the capacity of the second chamber 220.

[0111] Since the second air outlet 123 is located on the side wall of the housing 120 and the air duct structure 100 is located on one side wall of the second chamber 220, the opposite side wall is furthest from the air duct structure 100, thus minimizing the amount of cold air received by the frozen items near the opposite side wall; along the width direction X of the housing 120, the second air outlet 152 is spaced apart from the housing 120, and the second air outlet 152 blows cold air as far as possible to the side of the housing 120 away from the air duct structure 100, so that the cold air flows to a farther position, thereby freezing the frozen items that are far away from the housing 120 of the air duct structure 100.

[0112] The second air outlet 152 can extend in the width direction X of the housing 120. The second air outlet 152 is provided with a third air outlet 152a. The second air outlet 152 can deliver air to the second chamber 220 through the third air outlet 152a to blow the cold air as far away from the air duct structure 100 as possible. In order to improve the air delivery efficiency of the second air outlet 152, multiple third air outlets 152a can be provided on the second air outlet 152. By providing multiple third air outlets 152a on the second air outlet 152, the air delivery efficiency and the uniformity of the cold air inside the second chamber 220 can be increased as much as possible while reducing the number of components in the second chamber 220 and the number of openings in the second chamber 220.

[0113] Please see Figure 1 and Figure 3 In some embodiments, the second air outlet component 150 is disposed at the rear of the second chamber 220, that is, the second air outlet component 150 is installed on the rear wall of the second chamber 220, reducing the space occupied by the second air outlet component 150 in the second chamber 220, so that the second chamber 220 can accommodate as many items as possible and increase the capacity of the second chamber 220.

[0114] The rear of the second chamber 220 is the side of the second chamber 220 furthest from the access port 230. When air is being supplied to the second chamber 220, if the user opens the door 500 of the refrigeration unit 10 and takes items out through the access port 230, the cold air flowing inside the second chamber 220 can easily overflow from the access port 230. By placing the second air outlet component 150 at the rear of the second chamber 220, the path of the cold air blown out by the second air outlet component 150 to the access port 230 can be extended, minimizing the overflow of cold air from the access port 230 and helping to maintain the temperature of the second chamber 220.

[0115] Please see Figure 1 and Figure 3 In some embodiments, the second air outlet component 150 is disposed at the top of the second chamber 220. Since it is less likely that items will be placed on top of the second chamber 220, the resistance to the cold air is low, resulting in greater airflow at the top of the second chamber 220. This allows the cold air blown from the second air outlet component 150 to be directed as far as possible towards the other side of the width direction X of the second chamber 220, ensuring that areas farther from the air duct structure 100 are reached by the cold air. Furthermore, it is difficult for items to accumulate on top of the second chamber 220. This arrangement minimizes the impact of the second air outlet component 150 on the capacity of the second chamber 220, allowing the second chamber 220 to accommodate as many items as possible.

[0116] Please see Figure 1 and Figure 3 In some embodiments, the second air outlet component 150 is located at the top and rear of the second chamber 220, and the loading / unloading port 230 is located at the front of the housing, which can minimize the impact of the second air outlet component 150 on the user's loading / unloading of items; the second air outlet component 150 is connected to the second air outlet 123 located at the top of the housing 120 and near the rear of the housing 120, so that the air blown out of the second air outlet 123 flows to the second air outlet component 150 through the shortest path.

[0117] Please see Figure 1 and Figure 3In some embodiments, the second air outlet 152 is fixedly connected to at least one of the top wall and rear wall of the second chamber 220, such that the second air outlet 152 is fixed inside the second chamber 220 and located at the top and rear of the second chamber 220; the second air outlet 152 has a first fixing part 152b and a second fixing part 152c; the first fixing part 152b extends outward from the top edge of the first air outlet 143 and abuts against the top wall of the second chamber 220, and the first fixing part 152b and the top wall of the first chamber 210 can be connected by a fixing method such as screws or buckles; the second fixing part 152c extends outward from the top edge of the first air outlet 143 and abuts against the rear wall of the second chamber 220, and the second fixing part 152c and the rear wall of the first chamber 210 can be connected by a fixing method such as screws or buckles.

[0118] Please see Figure 7 and Figure 8 In some embodiments, the first vent 131a is disposed near the rear wall of the first chamber 210; cold air is blown toward the first chamber 210 through the first vent 131a, the first air supply port 122 and the second air outlet 143b of the first air outlet component 140, and the second air outlet 143b is located on the rear wall of the first chamber 210. The first vent 131a is disposed near the rear wall of the first chamber 210, so that the path of cold air flowing to the first chamber 210 is minimized, thereby improving the air outlet efficiency.

[0119] In some embodiments, the air duct structure 100 further includes a damper assembly 160, which is mounted on the volute 131 and used to open or close the first vent 131a. The damper assembly 160 can control the opening and closing of the first vent 131a to control the amount of cold air delivered to the first chamber 210, thereby controlling the temperature of the first chamber 210. The damper assembly 160, mounted on the volute 131, can more accurately adjust the amount of cold air entering the first chamber 210, improve the efficiency of the air duct structure 100, and control the amount of cold air in the first chamber 210 more quickly. In addition, the damper directly controls the first vent 131a, which can prevent cold air from entering the first chamber 210 in time and reduce energy loss.

[0120] In some embodiments, a mounting groove 131e is provided on the top of the volute 131, and the damper assembly 130 is embedded in the mounting groove 131e to ensure the firmness of the connection between the damper assembly 130 and the volute 131; the groove of the mounting groove 131e forms a first ventilation opening 131a, which facilitates the damper assembly 130 to control the opening or closing of the first ventilation opening 131a.

[0121] In some embodiments, the bottom of the mounting groove 131e communicates with the interior of the volute 131, and a second vent 131b is provided on the side wall of the mounting groove 131e for supplying air to the second chamber. The inner wall of the mounting groove 131e has an air guiding surface 131f for guiding air to the second vent 131b, so that the air inside the volute 131 can flow to the second chamber 220 through the air guiding surface 131f and the second vent 131b. The air guiding surface 131f can be an inclined surface or an arc surface, as long as the air guiding surface 131f can guide the airflow to the second vent 131b.

[0122] The air duct assembly includes a main body 161 and a cover plate 162. The main body 161 is provided with a vent that connects the first air supply port 122 and the first ventilation port 131a. The cover plate 162 can be closed over the vent to block the first air supply port 122 and the first ventilation port 131a, so that cold air cannot blow into the first chamber 210. When the cover plate 162 is opened, the cover plate 162 no longer blocks the vent, so that the first air supply port 122 and the first ventilation port 131a are connected, and cold air is blown into the first chamber 210 through the first ventilation port 131a, the first air supply port 122 and the first air outlet component 140. The main body 161 includes a first connecting section and a second connecting section that are connected to each other. The first connecting section is partially disposed at the first air supply port 122 and the second connecting section is disposed at the first ventilation port 131a, so that the first air supply port 122 and the first ventilation port 131a are connected.

[0123] Please see Figure 2 and Figure 7 In some embodiments, a seal 163 is provided between the damper assembly 160 and the first air outlet component 140. The seal 163 can effectively prevent cold air leakage, maintain the airtightness of the duct structure 100, and prevent external dust and impurities from entering through the joint between the damper assembly 160 and the first air outlet component 140. Generally, the seal 163 can be a gasket.

[0124] Please see Figure 2 In some embodiments, a second vent 131b is provided on the volute 131, and the second vent 131b is connected to the second air outlet 123 to supply air to the second chamber 220; the second air outlet 123 is located on the side wall of the housing 120. By placing the second vent 131b on the side wall of the volute 131, the path between the second vent 131b and the second air outlet 123 can be shortened, energy loss can be reduced, and air supply efficiency can be accelerated.

[0125] In some embodiments, the volute 131 is provided with multiple different ventilation openings, and the volute 131 supplies air to the first chamber 210 and the second chamber 220 through multiple different ventilation openings, so as to control the air supply status of different chambers.

[0126] Multiple vents can be located in different places or have different air outlet directions, so that the air duct structure 100 can blow cold air to different areas of the first chamber 210 or the second chamber 220 through different vents, thereby improving the uniformity of cold air in the first chamber 210 or the second chamber 220 and improving the freezing effect.

[0127] In some embodiments, there are multiple second vents 131b, and each second vent 131b is connected to a second air outlet 123, so that cold air can flow to the second chamber 220 through the second vent 131b and the second air outlet 123. At least two second air outlets 123 are arranged at Z intervals along the height direction of the housing 120, so as to minimize the path between the second air outlets 123 and the second vent 131b, reduce the air duct, thereby reducing wind loss and improving air supply efficiency.

[0128] Please see Figure 3 and Figure 8 In some embodiments, the volute 131 has an extension 133 protruding on the side facing the second chamber 220, and a second vent 131b is disposed in the extension 133. The extension 133 is at least partially located inside the second air outlet 123 and extends to the second air outlet 123, so that the second vent 131b and the second air outlet 123 are connected to blow the cold air in the volute 131 to the second chamber 220. The extension 133 is at least partially located in the second air outlet 123 to accurately blow the cold air blown out of the second vent 131b to the second chamber 220 through the second air outlet 123, thereby reducing wind energy loss. The extension 133 can also extend from one side of the second air outlet 123 into the second chamber 220, directly supplying air to the second chamber 220 through the second vent 131b; alternatively, the extension 133 can be located only near the side wall of the housing 120, with a gap between the second vent 131b and the second air outlet 123, allowing the cold air blown out by the second vent 131b to flow into the second chamber 220 through the second air outlet 123. Of course, in other embodiments, the second vent 131b and the second air outlet 123 can also be connected through an air duct, and this application embodiment does not limit this.

[0129] Please see Figure 2In some embodiments, a baffle plate 123a is provided in the housing 120. The baffle plate 123a is connected to the second air outlet 123 to guide the airflow so that the cold air blows towards the items in the second chamber 220. Generally, when users place items in the second chamber 220, they usually start to pile them up from the bottom of the second chamber 220, that is, the bottom of the second chamber 220 is the easiest to fill with items. The baffle plate 123a can be set at the upper edge of the second air outlet 123 to guide the cold air to the bottom of the second chamber 220 as much as possible, so that the items located at the bottom of the second chamber 220 can meet the freezing requirements.

[0130] Please see Figure 3 In some embodiments, the volute 131 further includes a main body 134 and an extension 135. The extension 135 is connected to the main body 134 and extends to the bottom of the mounting cavity 121, which can deliver cold air to the bottom of the mounting cavity 121, which is beneficial to blowing cold air to the bottom of the second chamber 220 through the extension 135. The second vent 131b is located at at least one of the main body 134 and the extension 135 and is used to supply air to the second chamber 220.

[0131] The fan 132 is installed on the main body 134, and the second vent 131b is located on the main body 134. Cold air can be directly blown into the second chamber 220 through the second vent 131b, which reduces the path of the cold air, reduces the loss of wind energy, and improves the air output efficiency. The second vent 131b is located on the extension 135, which extends to the bottom of the mounting cavity 121. This can increase the size of the volute 131 in the height direction Z of the housing 120, so that multiple second vents 131b can be arranged at intervals along the height direction Z of the housing 120, which is beneficial for blowing cold air to different height positions in the second chamber 220.

[0132] Please see Figure 3 In some embodiments, the extension 135 includes a first shell section 135a and a second shell section 135b. The first shell section 135a is connected to the main body 134 and the second shell section 135b respectively. The height of the first shell section 135a is greater than the height of the second shell section 135b. The second vent 131b is disposed in at least one of the first shell section 135a and the second shell section 135b, so that the second vent 131b can be arranged at different height positions of the extension 135 to improve the uniformity of cold air in the height direction of the second chamber 220.

[0133] Please see Figure 3In some embodiments, the first shell segment 135a is arranged laterally in the mounting cavity 121, that is, the first shell segment 135a extends along the thickness direction Y of the shell 120, and the second shell segment 135b is arranged vertically in the mounting cavity 121, that is, the second shell segment 135b extends along the height direction Z of the shell 120, so that the second vent 131b can be arranged in both the thickness direction Y and the height direction Z of the shell 120, thereby allowing the cold air blown out by the second vent 131b to be more evenly distributed in the second chamber 220, improving the freezing effect.

[0134] Please see Figure 3 In some embodiments, the second shell section 135b is arranged side by side with the evaporator 300 along the depth direction of the housing 120, making the internal structure of the mounting cavity 121 more compact.

[0135] Please see Figure 3 and Figure 7 In some embodiments, the volute 131 is connected to the housing 120 to form a fixed cavity 131c for mounting the fan 132. While ensuring that the fixed cavity 131c can accommodate the fan 132, the material used in the volute 131 is minimized.

[0136] Please see Figure 9 and Figure 10 In some embodiments, the housing includes an inner liner 200, the outer surface of which is provided with a mounting recess 240, the main body 142 is located outside the inner liner 200 and at least partially located in the mounting recess 240; the first air outlet 143 is located inside the first chamber 210.

[0137] The main body 142 is located outside the inner liner 200, that is, outside the first chamber 210, while the first air outlet is located inside the first chamber 210. Cold air flows through the main body 142 to the outside of the inner liner 200, and then blows into the first chamber 210 through the first air outlet 143. Positioning the main body 142 outside the inner liner 200 reduces its impact on the internal space of the inner liner 200, thus maximizing the capacity of the inner liner 200. The main body 142 is at least partially located within the mounting recess 240 of the inner liner 200, allowing for precise positioning and improved installation efficiency. The mounting recess 240 also serves to secure the main body 142, preventing unnecessary displacement during use. The main body 142 can be entirely or partially located within the mounting recess 240, as long as it is securely fixed to the recess.

[0138] Please see Figure 5 and Figure 6In some embodiments, the body component 142 includes a fixed section 142e and an extension section 142f connected to each other. The fixed section 142e and the extension section 142f are bent. The fixed section 142e is fixed to the top of the box, and the extension section 142f is fixed to the side of the box. By bending the fixed section 142e and the extension section 142f, the contact area between the body component 142 and the inner liner 200 can be increased, which is more conducive to improving the reliability of the connection between the body component 142 and the inner liner 200. Because the fixed section 142e and the extension section 142f are bent, the resistance to vertical or lateral movement of the body component 142 relative to the inner liner 200 is increased, which is conducive to maintaining the relative position between the body component 142 and the inner liner 200.

[0139] Please see Figure 1 and Figure 5 In some embodiments, the inner liner 200 is provided with a connecting portion 250, the inner side of which forms a connecting groove 251 for fixing the housing 120 of the air duct structure 100, and the outer side of which forms a connecting protrusion 252; the body component 142 is provided with a connecting groove 142b, and the connecting protrusion 252 is partially located within the connecting groove 142b. Through the connecting portion 250, the housing 120 of the air duct structure 100 and the body component 142 can be connected, making the connection between the housing 120 and the first air outlet component 143 more precise and secure, improving installation efficiency; the connecting groove 251 and the connecting protrusion 252 allow the inner liner 200 to be tightly connected to the housing 120 and the body component 142 without increasing the material usage of the inner liner 200; the connecting portion 250 can be formed by stamping, simplifying processing.

[0140] Please see Figure 10 In some embodiments, the housing further includes a foam layer and an outer shell 400; the foam layer is disposed between the outer shell 400 and the inner liner 200 to provide thermal insulation; the foam layer has an installation groove, and the main body 142 is at least partially located in the installation groove, so that the foam layer can directly abut against the inner liner 200, avoiding an increase in the overall size of the refrigeration device 10 due to the main body 142 being stuck between the foam layer and the inner liner 200, thereby minimizing the volume of the refrigeration device 10; that is, part of the main body 142 is located in the installation recess 240, and another part is located in the installation groove, further fixing the main body 142, while the foam layer can provide thermal insulation for the main body 142.

[0141] Please see Figure 9 and Figure 10 In some embodiments, the inner liner 200 is provided with a through hole through which the engaging protrusion 143c of the first air outlet 143 passes. The engaging protrusion 143c passes through the through hole and engages with the engaging groove 142a, so that the first air outlet 143 is fixedly connected to the body 142.

[0142] The foam layer has a joint, and the air duct structure 100 and the inner wall of the inner liner 200 form a foam cavity 260; the joint fills the foam cavity 260, so that the foam layer and the inner liner 200 are tightly connected, thereby improving the strength of the connection between the foam layer and the inner liner 200.

[0143] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0144] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0145] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A refrigeration device, characterized in that, include: Box; An air duct structure is installed inside the housing, dividing the housing into a first chamber and a second chamber; The air duct structure includes a housing and a fan assembly. The housing has a mounting cavity, which has a mounting top wall and a mounting side wall. The mounting top wall has a first air outlet, and the mounting side wall has a second air outlet. The fan assembly is disposed in the mounting cavity, enabling air in the mounting cavity to be blown into the first chamber through the first air outlet and into the second chamber through the second air outlet. An evaporator is disposed inside the mounting cavity.

2. The refrigeration equipment according to claim 1, characterized in that, The refrigeration equipment further includes a first air outlet component, which connects the first air outlet and the first chamber and is used to supply air to the first chamber. The first air outlet component is at least partially disposed in the first chamber and is installed on the top wall and / or rear wall of the first chamber.

3. The refrigeration equipment according to claim 2, characterized in that, The first air outlet component has a ventilation cavity, a first air outlet and a second air outlet, the first air outlet is located at the top of the first cavity, and the second air outlet is located at the rear of the first cavity; The ventilation cavity allows air blown from the first air inlet to enter the first chamber through at least one of the first air outlet and the second air outlet.

4. The refrigeration equipment according to claim 3, characterized in that, The first air outlet component includes a body and a first air outlet, and the ventilation cavity is formed in the body; the first air outlet is arranged side by side with the housing, the body connects the first air outlet and the first air inlet, and the first air outlet is used to supply air to the first chamber; the first air outlet is disposed inside the first chamber, and the body is at least partially disposed outside the first chamber.

5. The refrigeration equipment according to claim 4, characterized in that, The housing includes an inner liner, the outer surface of which is provided with a mounting recess, and the main body is located outside the inner liner and partially within the mounting recess; the first air outlet is located within the first cavity.

6. The refrigeration equipment according to claim 5, characterized in that, The inner liner is provided with a connecting part, the inner side of which forms a connecting groove for fixing the housing of the refrigeration equipment, and the outer side of which forms a connecting protrusion; the main body is provided with a connecting groove, and the connecting protrusion is located in the connecting groove.

7. The refrigeration equipment according to claim 5, characterized in that, One of the first air outlet component and the body component is provided with a groove, and the other is provided with a locking protrusion. The locking protrusion cooperates with the groove, and the inner liner has a through hole for the locking protrusion to pass through.

8. The refrigeration equipment according to claim 4, characterized in that, The enclosure also includes an inner liner, a foam layer, and an outer shell, with the foam layer disposed between the outer shell and the inner liner; the foam layer has an installation groove, and the main body component is at least partially located within the installation groove.

9. The refrigeration equipment according to any one of claims 1-7, characterized in that, The refrigeration equipment further includes a second air outlet component, which is installed on the top wall and / or rear wall of the second chamber; the second air outlet component has a third air outlet, which communicates with the second air supply outlet, and the third air outlet is spaced apart from the housing along the width direction of the housing.

10. The refrigeration equipment according to any one of claims 1-7, characterized in that, The fan assembly also includes a volute and a fan installed inside the volute. The volute is provided with a first vent and a second vent. The first vent is connected to the first air outlet, and the second vent is connected to the second air outlet.

11. The refrigeration equipment according to claim 10, characterized in that, The refrigeration equipment also includes a damper assembly, which is installed on the volute and is used to open or close the first vent.

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