Refrigeration device

Abstract

The utility model provides a kind of refrigeration device, it includes: cabinet, refrigeration air duct and shelf assembly;Chamber is opened in cabinet;Refrigeration air duct is set in cabinet, and it is located the outside of refrigeration chamber, and refrigeration air duct is used to transport cold air;Shelf assembly is set in refrigeration chamber, to be used to separate refrigeration chamber;Buffer cavity is opened in shelf assembly;At least one air inlet is opened in shelf assembly, and buffer cavity is communicated with refrigeration air duct by air inlet;Multiple air outlets are opened in shelf assembly, and the total cross-sectional area of air outlet is greater than the total cross-sectional area of air inlet, so that the cold air that refrigeration air duct input buffer cavity can slowly, evenly diffuse in refrigeration chamber, avoid cold air directly high-speed blowing article, reduce the occurrence of article air-drying effect, guarantee the freshness of meat, seafood, fruit and vegetable etc.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration technology, and in particular to a refrigeration device. Background Technology

[0002] The refrigeration unit includes a refrigeration system, a cold storage compartment, and refrigeration ducts. The refrigeration system generates cold air. The cold storage compartment is used to store fruits, vegetables, and other items. The refrigeration ducts connect the refrigeration system and the cold storage compartment to introduce cold air into the cold storage compartment, thereby refrigerating the items and extending their shelf life.

[0003] In related technologies, the cold storage room has an opening that connects to the refrigeration air duct. Cold air can be blown directly onto the items at high speed through the opening, causing the items to easily lose moisture due to the drying effect of the high-speed airflow, thus affecting the freshness of ingredients such as meat, seafood, fruits and vegetables. Utility Model Content

[0004] The purpose of this application is to provide a refrigeration device that can reduce the flow rate of cold air entering a refrigerated room.

[0005] To solve the above-mentioned technical problems, this application adopts the following technical solution: According to one aspect of this application, a refrigeration device is provided, comprising: a housing, a refrigeration duct, and a shelf assembly; a refrigeration chamber is formed within the housing; the refrigeration duct is disposed within the housing and located outside the refrigeration chamber, the refrigeration duct being used to transport cold air; the shelf assembly is disposed within the refrigeration chamber to separate the refrigeration chamber; a buffer cavity is formed within the shelf assembly; at least one air inlet is formed on the shelf assembly, the buffer cavity being connected to the refrigeration duct through the air inlet; and multiple air outlets are formed on the shelf assembly, the total cross-sectional area of ​​the air outlets being larger than the total cross-sectional area of ​​the air inlets, so that the cold air input into the buffer cavity by the refrigeration duct is slowly output to the refrigeration chamber.

[0006] As can be seen from the above technical solution, this application has at least the following advantages and positive effects: In this application, when cold air in the refrigeration duct enters the buffer chamber through the air inlet, the cold air flows within the buffer chamber. Furthermore, since the total cross-sectional area of ​​the air outlet is larger than that of the air inlet, the cold air in the buffer chamber then flows slowly into the refrigeration room through multiple air outlets. This allows the cold air to diffuse slowly and evenly within the refrigeration room, preventing the cold air from directly blowing on items at high speed, reducing the drying effect on items, and ensuring the freshness of meat, seafood, fruits, and vegetables.

[0007] In some embodiments, the shelf assembly has a diffuser portion protruding from the inner peripheral wall of the air outlet, the diffuser portion being cylindrical to form a diffuser channel within the diffuser portion; the diffuser portion extends along the axis of the air outlet; and in the air outlet direction, the cross-sectional area of ​​the inner peripheral wall of the diffuser channel gradually increases. As can be seen from the above technical solution, this application has at least the following advantages and positive effects: In this application, when the gas in the buffer chamber passes through the narrow inlet at the top of the diffuser, the airflow in the buffer chamber accelerates and flows into the diffusion channel. Subsequently, as the cross-sectional area of ​​the diffusion channel gradually expands from top to bottom, the pressure of the airflow entering the diffuser drops sharply, causing the airflow to flow downwards along the inner wall of the diffusion channel. Finally, after forced diffusion through the diffusion channel, the concentration of cold air is reduced, resulting in the airflow output from the diffuser forming a low-speed, diffused airflow that spreads horizontally. This diffused airflow is umbrella-shaped or fan-shaped, allowing it to be blown more gently, with a wider coverage angle, and more evenly into the refrigeration room. The diffused airflow avoids the drying effect caused by high-speed direct blowing of cold air onto items, thus ensuring the freshness of the items.

[0008] In some embodiments, the diffuser extends toward the buffer cavity such that the input end of the diffuser is located inside the buffer cavity.

[0009] As can be seen from the above technical solution, this application has at least the following advantages and positive effects: In this application, the way the diffuser is positioned can prevent external objects from accidentally touching the diffuser and thus avoid damaging its structure, ensuring the reliability and safety of the shelf assembly.

[0010] In some embodiments, the shelf assembly includes a shelf plate and an air distribution shell, the shelf plate extending horizontally; the air distribution shell is disposed on the lower side of the shelf plate and is sealed to the shelf plate to enclose and form the buffer cavity.

[0011] As can be seen from the above technical solution, this application has at least the following advantages and positive effects: In this application, when the shelf assembly is cleaned or repaired, workers can disassemble the shelf assembly to separate the shelves and the air distribution shell, thereby facilitating the cleaning of the inner walls of the shelves and the air distribution shell and preventing bacterial growth in the buffer cavity.

[0012] In some embodiments, the refrigeration device further includes a drawer slidably housed within the refrigeration chamber, the drawer being located below the shelf assembly, and the drawer and the shelf assembly enclosing a storage space; the air outlet is disposed at the bottom of the air distribution shell corresponding to the storage space, so that the buffer cavity communicates with the storage space through a plurality of air outlets.

[0013] As can be seen from the above technical solution, this application has at least the following advantages and positive effects: In this application, the buffer chamber is connected to the storage space through the air outlet, so that cold air can flow evenly into the storage space through multiple diffusion channels, thereby achieving uniform cooling of the items in the storage space and effectively reducing the flow rate of the diffused airflow to avoid affecting the freshness of the items due to the drying effect.

[0014] In some embodiments, the air distribution shell includes a bottom plate and a plurality of side plates. The bottom plate extends horizontally, and the plurality of air outlets are evenly distributed on the bottom plate. The plurality of side plates are sequentially arranged around the periphery of the bottom plate so that the bottom plate, the plurality of side plates, and the layer plate enclose the buffer cavity. The air inlet is disposed on the side plate.

[0015] As can be seen from the above technical solution, this application has at least the following advantages and positive effects: In this application, the air inlet is located on the side panel. Multiple side panels are tightly fitted to the shelf to ensure the sealing performance of the buffer cavity and to ensure the feasibility of the buffer cavity.

[0016] In some embodiments, the shelf assembly further includes a first connector disposed on the periphery of the shelf to connect the shelf and the air distribution shell.

[0017] As can be seen from the above technical solution, this application has at least the following advantages and positive effects: In this application, the first connector can achieve a high-strength connection between the shelf and the air distribution shell, ensuring the reliability and stability of the shelf assembly.

[0018] In some embodiments, the first connector has at least one air inlet channel corresponding to the air inlet. One end of the air inlet channel is used to connect to the cooling air duct, and the other end of the air inlet channel is connected to the air inlet. The air inlet channel is inclined from bottom to top in the direction toward the buffer cavity.

[0019] As can be seen from the above technical solution, this application has at least the following advantages and positive effects: In this application, the air inlet channel is used to guide the cold air obliquely upward into the buffer cavity, so that the cold air rises upward along the inclined direction of the air inlet channel when it enters the buffer cavity. Then, the cold air gradually diffuses downward under the action of gravity, so that the cold air can be fully diffused in the buffer cavity.

[0020] In some embodiments, the refrigeration device further includes a duct cover plate extending vertically and located within the refrigeration chamber. The duct cover plate and the inner wall of the refrigeration chamber enclose a continuous ventilation duct, the input end of which is connected to the refrigeration duct. The duct cover plate is connected to the first connector, and the output end of the continuous ventilation duct is connected to the input end of the air inlet channel.

[0021] As can be seen from the above technical solution, this application has at least the following advantages and positive effects: In this application, the duct cover can guide and distribute the cold air in the cooling duct, thereby facilitating the uniform flow of cold air into the shelf assembly.

[0022] In some embodiments, the shelf assembly further includes a second connector disposed on the side of the shelf away from the first connector, the second connector connecting the shelf and the air distribution shell.

[0023] As can be seen from the above technical solution, this application has at least the following advantages and positive effects: In this application, the second connector connects the shelf and the air distribution shell to limit the shelf and the air distribution shell, thereby improving the connection strength and reliability between the shelf and the air distribution shell 330. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the refrigeration device of this utility model.

[0025] Figure 2 This is a structural schematic diagram of the air duct cover and shelf assembly of this utility model.

[0026] Figure 3 yes Figure 2 The diagram shows a structural schematic from another perspective.

[0027] Figure 4 This is a structural schematic diagram of the shelf assembly of this utility model.

[0028] Figure 5 yes Figure 4 A partial cross-sectional view of the structure shown.

[0029] Figure 6 yes Figure 5 The enlarged view of structure A shown in the diagram.

[0030] Figure 7 This is a partially exploded view of the shelf assembly of this utility model.

[0031] Figure 8 This is an exploded view of the shelf assembly of this utility model.

[0032] Figure 9 This is a schematic diagram of the structure of the wind-equalizing shell of this utility model.

[0033] Figure 10 This is a structural schematic diagram of the first connecting member of this utility model.

[0034] The reference numerals in the attached drawings are explained as follows: 100, cabinet; 110, refrigeration compartment; 120, air duct cover; 200, door; 300, shelf assembly; 310, buffer chamber; 320, shelf; 330, air distribution shell; 331, bottom plate; 3311, air outlet; 3312, diffuser; 3313, diffuser channel; 332, rear side plate; 3321, air inlet; 3322, first locking block; 3323, guide plate; 333, front side plate; 3331, second locking block; 334, left side plate; 335, right side plate; 336, ramp plate; 340, first connecting piece; 341, air inlet channel; 342, first slot; 343, second slot; 350, second connecting piece; 351, third slot; 352, fourth slot; 410, drawer; 420, storage space. Detailed Implementation

[0035] Typical embodiments embodying the features and advantages of this application will be described in detail in the following description. It should be understood that this application can have various variations in different embodiments, all of which do not depart from the scope of this application, and the descriptions and illustrations therein are for illustrative purposes only and not intended to limit this application.

[0036] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0037] Refrigeration devices are used to refrigerate and freeze items, thereby extending their shelf life. Refrigeration devices can include refrigerators, freezers, and other similar appliances; the following example uses a refrigerator.

[0038] Figure 1 This is a schematic diagram of the structure of the refrigeration device of this utility model.

[0039] See Figure 1 The refrigeration unit may include a housing 100 and a door 200. The housing 100 has a refrigeration compartment 110 for storing items. The door 200 is closable on the housing 100 for opening or closing the refrigeration compartment 110.

[0040] See Figure 1 For ease of understanding and description, the state of the refrigeration device in use is taken as a reference. The vertical direction of the refrigeration device is the vertical direction in the following text. The direction of the door 200 relative to the box 100 is the front in the following text. The direction away from the front is the rear in the following text. The direction perpendicular to the vertical and front-back directions is the left-right direction in the following text.

[0041] In this embodiment, the refrigeration device may further include a refrigeration system and a refrigeration duct. Both the refrigeration system and the refrigeration duct are disposed within the housing 100 and located outside the refrigeration chamber 110. The refrigeration system is connected to the refrigeration duct to lower its temperature, thereby cooling the gas within the refrigeration duct to form cold air. The refrigeration duct communicates with the refrigeration chamber 110 to introduce cold air into the refrigeration chamber 110, thereby refrigerating or freezing items.

[0042] Figure 2 This is a structural schematic diagram of the air duct cover and shelf assembly of this utility model. Figure 3 yes Figure 2 The diagram shows a structural schematic from another perspective.

[0043] See Figure 1 , Figure 2 and Figure 3 In this embodiment, the refrigeration device may further include a duct cover 120. The duct cover 120 extends vertically and is located within the refrigeration chamber 110. The duct cover 120 and the inner wall of the refrigeration chamber 110 enclose a continuous ventilation duct, the input end of which is connected to the refrigeration duct, and the output end of which is connected to the refrigeration chamber 110.

[0044] The duct cover 120 guides and distributes the cold air within the refrigeration duct, facilitating the even flow of cold air into the shelf assembly. Furthermore, it protects the refrigeration duct, preventing debris from directly entering it through the refrigeration compartment.

[0045] In some embodiments, the duct cover 120 is disposed near the rear side wall of the refrigeration chamber 110 and connected to the rear side wall of the refrigeration chamber 110, so that the duct cover 120 and the rear side wall of the refrigeration chamber 110 enclose a connecting ventilation duct. The refrigeration duct is disposed on the rear side of the refrigeration chamber 110 so that the refrigeration duct can communicate with the connecting ventilation duct.

[0046] Figure 4 This is a structural schematic diagram of the shelf assembly of this utility model. Figure 5 yes Figure 4 A partial cross-sectional view of the structure shown.

[0047] See Figure 4 and Figure 5 In this embodiment, the refrigeration device may include a shelf assembly 300. The shelf assembly 300 is disposed within the refrigeration chamber 110 to separate the refrigeration chamber 110. A buffer cavity 310 is formed within the shelf assembly 300. At least one air inlet 3321 is formed on the shelf assembly 300, and the buffer cavity 310 is connected to the refrigeration air duct through the air inlet 3321. A plurality of air outlets 3311 are formed on the shelf assembly 300, and the total cross-sectional area of ​​the air outlets 3311 is larger than the total cross-sectional area of ​​the air inlets 3321, so that the cold air entering the buffer cavity 310 through the refrigeration air duct is slowly output to the refrigeration chamber 110.

[0048] When the cold air in the refrigeration duct enters the buffer chamber 310 through the air inlet 3321, the cold air flows within the buffer chamber 310. Furthermore, since the total cross-sectional area of ​​the air outlet 3311 is larger than that of the air inlet 3321, the cold air in the buffer chamber 310 then flows slowly into the refrigeration chamber 110 through multiple air outlets 3311. This allows the cold air to diffuse slowly and evenly within the refrigeration chamber 110, preventing the cold air from blowing directly and at high speed onto items, reducing the drying effect on items, and ensuring the freshness of meat, seafood, fruits, vegetables, and other ingredients.

[0049] In some embodiments, the shelf assembly 300 is engaged with the inner wall of the refrigeration chamber 110 to facilitate the installation and removal of the shelf assembly 300.

[0050] In other embodiments, the left and right side walls of the refrigeration chamber 110 are respectively provided with supporting ribs (not shown). The supporting ribs extend in the front-back direction, and the shelf assembly 300 is slidably disposed on the upper side of the supporting ribs so that the shelf assembly 300 can slide in the front-back direction to facilitate the installation and disassembly of the shelf assembly 300.

[0051] In some embodiments, the shelf assembly 300 is connected to the air duct cover 120 so that the air inlet 3321 is connected to the connecting air duct, thereby allowing the cold air in the connecting air duct to enter the buffer chamber 310 through the air inlet 3321.

[0052] Figure 6 yes Figure 5 The enlarged view of structure A shown in the diagram. Figure 7 This is a partially exploded view of the shelf assembly of this utility model. Figure 8 This is an exploded view of the shelf assembly of this utility model.

[0053] See Figure 6 , Figure 7 and Figure 8 In this embodiment, the shelf assembly 300 may include a shelf plate 320 and an air distribution shell 330. The shelf plate 320 extends horizontally. The air distribution shell 330 is disposed on the lower side of the shelf plate 320 and is sealed to the shelf plate 320 to form a buffer cavity 310. When the shelf assembly 300 is cleaned or maintained, the staff can disassemble the shelf assembly 300 to separate the shelf plate 320 and the air distribution shell 330, thereby facilitating the cleaning of the inner walls of the shelf plate 320 and the air distribution shell 330 and preventing bacterial growth in the buffer cavity 310.

[0054] See Figure 4 In some embodiments, on the horizontal projection plane, the projection of the layer plate 320 exceeds the projection of the wind equalization shell 330, or the projection of the layer plate 320 coincides with the projection of the wind equalization shell 330, so that the layer plate 320 and the wind equalization shell 330 are sealed together to form a buffer cavity 310.

[0055] Figure 9 This is a schematic diagram of the structure of the wind-equalizing shell of this utility model.

[0056] See Figure 8 and Figure 9 In this embodiment, the air distribution shell 330 may include a base plate 331 and multiple side plates. The base plate 331 extends horizontally, and multiple air outlets 3311 are spaced apart on the base plate 331. Multiple side plates are sequentially arranged around the periphery of the base plate 331, so that the base plate 331, multiple side plates, and layer plate 320 enclose a buffer cavity 310. Air inlets 3321 are provided on the side plates. The multiple side plates are tightly fitted to the layer plate 320 to ensure the sealing performance of the buffer cavity 310 and to ensure the feasibility of the buffer cavity 310.

[0057] In some embodiments, the air distribution shell 330 includes a rectangular base plate 331 and four side plates respectively disposed around the base plate 331. The shape of the base plate 331 is adapted to the contour of the refrigeration chamber 110 so that the multiple air outlets 3311 on the base plate 331 can slowly output cold air to the space under the shelf assembly 300, thereby ensuring cooling.

[0058] In some embodiments, the air distribution shell 330 has a plurality of air inlets 3321 on one side plate near the air duct cover 120. The plurality of air inlets 3321 are evenly spaced in the left and right direction so that the cold air in the air duct can be evenly input into the buffer chamber 310 through the plurality of air inlets 3321, thereby improving the temperature uniformity of the buffer chamber 310 and ensuring the temperature uniformity of the cold air output from the plurality of air outlets 3311.

[0059] In some embodiments, the air distribution shell 330 includes a base plate 331, a front side plate 333, a rear side plate 332, a left side plate 334, and a right side plate 335. The base plate 331 extends horizontally. The front side plate 333, rear side plate 332, left side plate 334, and right side plate 335 all extend vertically. The front side plate 333, left side plate 334, rear side plate 332, and right side plate 335 are connected horizontally in sequence to improve the reliability and stability of the air distribution shell 330. An air inlet 3321 is disposed on the rear side plate 332.

[0060] A ramp 336 is provided between the lower end of the front side panel 333 and the bottom panel 331. The ramp 336 is inclined towards the shelf 320 in the upward direction. The ramp 336 extends in the left and right direction to connect the left side panel 334 and the right side panel 335 respectively.

[0061] When the cold air input from the air inlet 3321 rushes into the buffer chamber 310, the cold air flows from back to front. When the cold air impacts the ramp 336, the cold air can flow upward along the inclined ramp 336 to reduce the impact kinetic energy of the cold air, so that the cold air can slowly diffuse in the buffer chamber 310, ensuring the uniformity of temperature in all parts of the buffer chamber 310.

[0062] In other embodiments, the base plate 331, front side plate 333, rear side plate 332, left side plate 334, right side plate 335 and ramp plate 336 are integrally formed to improve the structural strength and reliability of the wind distribution shell 330.

[0063] See Figure 6 and Figure 9 In this embodiment, the air distribution shell 330 may also be provided with guide plates 3323 on the left and right sides of the air inlet 3321. The guide plates 3323 are located in the buffer cavity 310 and extend along the air inlet direction of the air inlet 3321, so that the cold air input into the air inlet 3321 flows to the ramp plate 336 under the guidance of the guide plates 3323, thereby facilitating the uniform flow of cold air to all parts of the buffer cavity 310 and ensuring the temperature uniformity of the cold air output by the shelf assembly 300.

[0064] In some embodiments, the height difference between the base plate 331 and the shelf 320 can be greater than or equal to 15 mm, so that the buffer cavity 310 can reserve space for the upward flow of cold air in the vertical direction.

[0065] In some embodiments, the height difference between the base plate 331 and the shelf plate 320 can be less than or equal to 25 mm in order to avoid the buffer cavity 310 being too high in the vertical direction, thereby reducing the volume of the shelf assembly 300 and improving the space utilization of the refrigeration device.

[0066] In some embodiments, the height difference between the base plate 331 and the shelf plate 320 can be greater than or equal to 15 mm and less than or equal to 25 mm, so that the buffer cavity 310 can reserve space for the upward flow of cold air in the vertical direction while improving the space utilization of the shelf assembly 300.

[0067] See Figure 6 and Figure 9 In this embodiment, multiple air outlets 3311 can be evenly arranged on the base plate 331 to eliminate strong airflow, so that the gas in the buffer chamber 310 can be evenly and slowly output to the lower side, ensuring the uniformity of temperature in all parts of the refrigeration chamber 110 and ensuring the safety of all items.

[0068] In some embodiments, the porosity of the base plate 331 can be 30% to 50% to increase the volume of the diffusion channel 3313 while ensuring the structural strength of the base plate 331, so that the cold air can be quickly output to the cooling chamber 110 through the buffer cavity 310.

[0069] In some embodiments, the hole density of the base plate 331 can be 20 to 40 holes per square centimeter to ensure that the cold air can be evenly output to the cooling room 110 through multiple air outlets 3311.

[0070] See Figure 6 and Figure 9 In this embodiment, a diffuser portion 3312 may protrude from the inner peripheral wall of the air outlet 3311 in the shelf assembly 300. The diffuser portion 3312 is cylindrical and extends along the axis of the air outlet 3311, so that a diffuser channel 3313 is formed inside the diffuser portion 3312. In the air outlet direction of the air outlet 3311, the cross-sectional area of ​​the inner peripheral wall of the diffuser channel 3313 gradually increases.

[0071] When the gas in the buffer chamber 310 passes through the narrow inlet at the top of the diffuser 3312, the airflow in the buffer chamber 310 accelerates and flows into the diffuser channel 3313. Subsequently, as the cross-sectional area of ​​the diffuser channel 3313 gradually expands from top to bottom, the pressure of the airflow entering the diffuser 3312 drops sharply, causing the airflow to flow downwards along the inner wall of the diffuser channel 3313. Finally, after forced diffusion through the diffuser channel 3313, the concentration of the cold air is reduced, causing the airflow output from the diffuser 3312 to form a low-speed diffused airflow that diffuses horizontally. This diffused airflow is umbrella-shaped or fan-shaped, allowing it to be blown more gently, with a wider coverage angle, and more evenly into the cooling chamber 110.

[0072] On the one hand, diffused airflow can prevent cold air from blowing directly onto items at high speed and causing a drying effect, thus ensuring the freshness of the items.

[0073] On the other hand, the uniform introduction of diffused airflow into the cooling chamber 110 can also improve the mixing efficiency and uniformity of cold air and air in the cooling chamber 110, and to the greatest extent possible avoid the situation of cold air blowing directly or local temperature being too low in any part of the cooling chamber 110, thus ensuring that the temperature is uniform throughout the cooling chamber 110.

[0074] Furthermore, after the cold air enters the diffusion channel 3313 from the buffer chamber 310, the cold air is accelerated only at the input end of the diffuser 3312. Then the kinetic energy of the airflow is converted into pressure energy, which significantly reduces the noise generated when the cold air passes through the air outlet 3311 and improves the user experience.

[0075] Meanwhile, the multiple diffusers 3312 can effectively enhance the structural strength and deformation resistance of the floor, thereby effectively improving the support performance and reliability of the shelving assembly 300.

[0076] See Figure 6 In this embodiment, the diffuser 3312 extends toward the buffer cavity 310 so that the input end of the diffuser 3312 is located inside the buffer cavity 310, thereby preventing external objects from accidentally touching the diffuser 3312 and damaging the structure of the diffuser 3312.

[0077] Furthermore, the arrangement of the diffuser 3312 allows the edge of the output end of the diffuser 3312 to be far away from the center of the cold air flow, thereby improving the mixing efficiency of the diffused air flow with the gas in the cooling chamber 110 when the diffused air flow comes into contact with the humid air, increasing the temperature rise rate of the diffused air flow, greatly reducing the risk of frost or ice blockage at the edge of the output end of the diffuser 3312 due to excessive temperature difference, and ensuring the long-term unobstructed flow of the diffuser 3312.

[0078] In some embodiments, the cross-section of the diffusion channel 3313 is circular in the direction from bottom to top, so that the diffuser 3312 is frustum-shaped, thereby facilitating the uniform outflow of the diffused airflow in the horizontal direction.

[0079] In some embodiments, the diffuser 3312 and the base plate 331 are curved to facilitate the uniform output of the diffused airflow to the layer plate 320, thereby ensuring the uniformity of the diffused airflow.

[0080] In some embodiments, the diameter of the input end of the diffuser 3312 can be greater than or equal to 1 mm to avoid excessively high gas flow rate due to an excessively small input end diameter of the diffuser 3312, thereby reducing aerodynamic noise. Furthermore, it can also prevent the diffuser 3313 from becoming clogged due to an excessively small input port diameter.

[0081] In some embodiments, the diameter of the inlet of the diffuser 3312 can be less than or equal to 3 mm to ensure that the gas is diffused due to the change in the diameter of the diffuser channel 3313, and to prevent the gas from concentrating through the diffuser channel 3313.

[0082] In some embodiments, the diameter of the inlet of the diffuser 3312 can be 1mm to 3mm, so as to reduce aerodynamic noise while allowing the gas to diffuse through the significant change in the diameter of the diffuser channel 3313, thus ensuring uniform temperature throughout the cooling room.

[0083] In some embodiments, the diameter of the output end of the diffuser 3312 can be greater than or equal to 6.7 mm, so that the output end of the diffuser 3312 is adapted to the input end, and the diffuser channel 3313 has sufficient diameter variation, thereby ensuring the diffusion effect of the airflow.

[0084] In some embodiments, the diameter of the output end of the diffuser 3312 can be less than or equal to 20.4 mm to avoid the diffuser channel 3313 occupying a large volume and to ensure the structural strength of the base plate 331.

[0085] In some embodiments, the diameter of the output end of the diffuser 3312 can be 6.7mm to 20.4mm, so as to ensure the structural strength of the base plate 331 while ensuring the diffusion effect of the airflow and realizing the slow and dispersed delivery of cold air.

[0086] In some embodiments, the height of the diffuser 3312 can be greater than or equal to 5 mm, so as to reserve sufficient passage space for the pressure reduction of the diffuser channel 3313.

[0087] In some embodiments, the height of the diffuser 3312 may be less than or equal to 6 mm to avoid the diffuser channel 3313 being too long and affecting the space utilization of the refrigeration device.

[0088] In some embodiments, the height of the diffuser 3312 can be 5mm to 6mm, so as to ensure the space utilization of the refrigeration device while reserving sufficient passage space for the diffuser channel 3313, thereby ensuring the diffusion effect of cold air when passing through the diffuser channel 3313.

[0089] In some embodiments, the diffusion angle of the diffuser 3312 can be greater than or equal to 60° so that the diffusion channel 3313 has sufficient diameter variation, thereby ensuring the diffusion effect of the cold air flow.

[0090] In some embodiments, the diffusion angle of the diffuser 3312 can be less than or equal to 120° to avoid the horizontal dimension of the diffusion channel 3313 being too large and affecting the structural strength of the base plate 331.

[0091] In some embodiments, the diffusion angle of the diffuser 3312 can be 60° to 120°, so as to improve the structural strength and reliability of the base plate 331 while ensuring the diffusion effect of the cold air flow.

[0092] In this embodiment, the diffuser 3312 can be integrally formed with the base plate 331. In some embodiments, the diffuser 3312 can be separately provided from the base plate 331, so that the diffuser 3312 can be sealed and connected to the inner peripheral wall of the air outlet 3311 on the base plate 331.

[0093] Figure 10 This is a structural schematic diagram of the first connecting member of this utility model.

[0094] See Figure 5 and Figure 10 In this embodiment, the shelf assembly 300 may further include a first connector 340. The first connector 340 is disposed on the periphery of the shelf 320 to connect the shelf 320 and the air distribution shell 330, thereby achieving a high-strength connection between the shelf 320 and the air distribution shell 330 and ensuring the reliability and stability of the shelf assembly 300.

[0095] In some embodiments, the first connector 340 is located on the rear side of the shelf 320. The first connector 340 is detachably connected to the duct cover 120 to facilitate the connection and positioning between the shelf assembly 300 and the duct cover 120.

[0096] See Figure 5 and Figure 10 In this embodiment, the first connector 340 may have at least one air inlet channel 341 corresponding to the air inlet 3321. The air inlet channel 341 extends in the front-to-back direction. The input end of the air inlet channel 341 is connected to the cooling air duct through a connecting air duct, and the output end of the air inlet channel 341 is connected to the air inlet 3321. In the direction toward the buffer cavity 310, the air inlet channel 341 is inclined from bottom to top.

[0097] The air inlet channel 341 is used to guide cold air obliquely upward into the buffer cavity 310, so that when the cold air enters the buffer cavity 310, it rises upward along the inclined direction of the air inlet channel 341. Then, the cold air gradually diffuses downward under the action of gravity, so that the cold air can be fully diffused in the buffer cavity 310.

[0098] In some embodiments, the inclination angle of the air inlet channel 341 in the horizontal direction can be greater than or equal to 15°, so that when the cold air enters the buffer cavity 310, the cold air can be fully lifted and flow to the front of the buffer cavity 310, thereby achieving uniform diffusion of the cold air in the buffer cavity 310 and ensuring the uniformity of temperature in all parts of the buffer cavity 310.

[0099] In some embodiments, the inclination angle of the air inlet channel 341 in the horizontal direction can be less than or equal to 45°, so that the cold air can flow evenly along the arc, avoid the cold air flow from impacting the shelf 320 and affecting the flow trajectory of the cold air, and ensure the diffusion effect of the cold air in the buffer cavity 310.

[0100] In some embodiments, the inclination angle of the air inlet channel 341 in the horizontal direction can be greater than or equal to 15° and less than or equal to 45°, so as to avoid the cold air flow impacting the shelf 320 and affecting the flow trajectory of the cold air, while allowing the cold air to extend in the front and rear directions of the buffer cavity 310, so that the cold air can flow to the front of the buffer cavity 310 and diffuse fully, thereby improving the temperature uniformity of the buffer cavity 310.

[0101] In some embodiments, there may be multiple air inlet channels 341. The multiple air inlet channels 341 may be spaced apart in the left-right direction.

[0102] In other embodiments, the first connector 340 may be provided with multiple air inlet channels 341 corresponding to any air inlet 3321, so that the airflow output from multiple air inlet channels 341 can enter the buffer cavity 310 through the same air inlet 3321, thereby avoiding the concentration of cold airflow entering through the air inlet 3321, facilitating the diffusion of cold air in the buffer cavity 310, and ensuring the temperature uniformity of the buffer cavity 310.

[0103] In some embodiments, the first connector 340 may have a first slot 342 extending in the left-right direction. The shelf 320 is detachably engaged in the first slot 342 to achieve the connection between the first connector 340 and the shelf 320.

[0104] In some embodiments, at least one second slot 343 may be provided on the first connector 340. The second slot 343 may extend in the left-right direction. The rear side plate 332 of the air distribution shell 330 is provided with a first locking block 3322 corresponding to the second slot 343. The first locking block 3322 can be detachably engaged in the second slot 343, so that the air distribution shell 330 is connected to the first connector 340, and the air distribution shell 330 is sealed to the shelf 320, thereby improving the connection strength and reliability between the air distribution shell 330 and the shelf 320.

[0105] In other embodiments, the first connector 340 may be provided with a plurality of second slots 343, which may be spaced apart in the left-right direction. The rear side plate 332 is provided with a plurality of first locking blocks 3322 corresponding to the plurality of second slots 343 to improve the connection strength and reliability between the first connector 340 and the air distribution shell 330.

[0106] See Figure 5 and Figure 8 In this embodiment, the shelf assembly 300 may further include a second connector 350. The second connector 350 is disposed on the side of the shelf away from the first connector 340. The second connector 350 connects the shelf 320 and the air distribution shell 330 to limit the shelf 320 and the air distribution shell 330, thereby improving the connection strength and reliability between the shelf 320 and the air distribution shell 330.

[0107] In some embodiments, a third slot 351 may be provided on the second connector 350. The third slot 351 is used to accommodate and engage the front part of the shelf 320 to realize the connection between the second connector 350 and the shelf 320.

[0108] In some embodiments, at least one fourth slot 352 may be provided on the first connector 340. The fourth slot 352 may extend in the left-right direction. A second locking block 3331 protrudes from the front side plate 333 of the air distribution shell 330 corresponding to the fourth slot 352. The second locking block 3331 can be detachably engaged in the fourth slot 352 to connect the air distribution shell 330 with the second connector 350 and to seal the air distribution shell 330 with the shelf 320, thereby improving the connection strength and reliability between the air distribution shell 330 and the shelf 320.

[0109] In other embodiments, the second connector 350 may be provided with a plurality of fourth slots 352, which may be spaced apart in the left-right direction. The front side plate 333 is provided with a plurality of second locking blocks 3331 corresponding to the plurality of fourth slots 352 to improve the connection strength and reliability between the second connector 350 and the air distribution shell 330.

[0110] See Figure 1 and Figure 4In this embodiment, the refrigeration device may further include a drawer 410. The drawer 410 is slidably housed within the refrigeration chamber 110. The drawer 410 is located below the shelf assembly 300. The drawer 410 and the shelf assembly 300 can enclose a storage space 420. An air outlet 3311 is disposed at the bottom of the air distribution shell 330 corresponding to the storage space 420, so that the buffer chamber 310 communicates with the storage space 420 through the air outlet 3311, so that cold air can flow evenly into the storage space 420 through multiple diffusion channels 3313, thereby achieving uniform cooling of the items in the storage space 420 and effectively reducing the flow rate of the diffused airflow, avoiding the impact of drying effect on the freshness of the items.

[0111] See Figures 1 to 10 This application provides a refrigeration device. When the refrigeration device is used to store fruits, vegetables, meat and other foods, the cold air in the refrigeration duct enters the connecting ventilation duct, and then enters the air inlet channel 341 through the connecting ventilation duct.

[0112] After the cold air enters the air inlet channel 341, it rises obliquely upward along the air inlet channel 341 into the buffer chamber 310 and flows from back to front. During the flow, the cold air gradually diffuses downward and horizontally under the action of gravity, so that the cold air can flow to the front end of the buffer chamber 310 and fully diffuse within the buffer chamber 310.

[0113] After the cold air diffuses within the buffer chamber 310, it is then output in an umbrella-shaped diffused airflow through the diffusion channel 3313 to further reduce the flow rate of the cold air output from the buffer chamber 310 to the storage space 420, reduce the drying effect generated during the airflow process, ensure the freshness of the items, and improve the user experience.

[0114] The above embodiments are merely illustrative examples of structures. The structures in each embodiment are not fixed combinations. In the absence of structural conflicts, the structures in multiple embodiments can be arbitrarily combined and used.

[0115] Although this application has been described with reference to several typical embodiments, it should be understood that the terminology used is illustrative and exemplary, and not restrictive. Since this application can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A refrigeration device, characterized in that, include: The enclosure contains a refrigeration compartment. A refrigeration duct is installed inside the housing and located outside the refrigeration compartment. The refrigeration duct is used to transport cold air. A shelf assembly is disposed within the refrigeration room to separate the refrigeration room; a buffer cavity is provided within the shelf assembly; at least one air inlet is provided on the shelf assembly, and the buffer cavity is connected to the refrigeration duct through the air inlet; multiple air outlets are provided on the shelf assembly, and the total cross-sectional area of ​​the air outlets is larger than the total cross-sectional area of ​​the air inlets, so that the cold air entering the buffer cavity through the refrigeration duct is slowly output to the refrigeration room.

2. The refrigeration device according to claim 1, characterized in that, The shelf assembly has a diffuser protruding from the inner peripheral wall of the air outlet. The diffuser is cylindrical, so that a diffuser channel is formed inside the diffuser. The diffuser extends along the axis of the air outlet. In the air outlet direction, the cross-sectional area of ​​the inner peripheral wall of the diffuser channel gradually increases.

3. The refrigeration device according to claim 2, characterized in that, The diffuser extends toward the buffer cavity so that the input end of the diffuser is located inside the buffer cavity.

4. The refrigeration device according to claim 1, characterized in that, The shelf assembly includes a shelf plate and an air distribution shell. The shelf plate extends horizontally. The air distribution shell is disposed on the lower side of the shelf plate and is sealed to the shelf plate to form the buffer cavity.

5. The refrigeration device according to claim 4, characterized in that, The refrigeration device also includes a drawer, which is slidably housed in the refrigeration chamber. The drawer is located below the shelf assembly, and the drawer and the shelf assembly enclose a storage space. The air outlet is located at the bottom of the air distribution shell, corresponding to the storage space, so that the buffer cavity is connected to the storage space through multiple air outlets.

6. The refrigeration device according to claim 5, characterized in that, The air distribution shell includes a bottom plate and multiple side plates. The bottom plate extends horizontally, and multiple air outlets are evenly distributed on the bottom plate. The multiple side plates are sequentially arranged around the periphery of the bottom plate so that the bottom plate, the multiple side plates, and the layer plate enclose the buffer cavity. The air inlet is disposed on the side plate.

7. The refrigeration device according to claim 4, characterized in that, The shelf assembly further includes a first connector disposed on the periphery of the shelf plate to connect the shelf plate and the air distribution shell.

8. The refrigeration device according to claim 7, characterized in that, The first connector has at least one air inlet channel corresponding to the air inlet. One end of the air inlet channel is used to connect to the cooling air duct, and the other end of the air inlet channel is connected to the air inlet. The air inlet channel is inclined from bottom to top in the direction toward the buffer cavity.

9. The refrigeration device according to claim 8, characterized in that, The refrigeration device also includes a duct cover plate, which extends vertically and is located inside the refrigeration chamber. The duct cover plate and the inner wall of the refrigeration chamber enclose a continuous ventilation duct, and the input end of the continuous ventilation duct is connected to the refrigeration duct. The duct cover is connected to the first connector, and the output end of the connecting duct is connected to the input end of the air inlet channel.

10. The refrigeration device according to claim 7, characterized in that, The shelf assembly further includes a second connector, which is disposed on the side of the shelf away from the first connector, and the second connector connects the shelf and the air distribution shell.

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