A refrigerator

Abstract

The application discloses a refrigerator, and belongs to the technical field of refrigeration equipment, and aims to solve the technical problem of large temperature difference in the refrigeration chamber of a related refrigerator. The refrigerator comprises an inner container and an air duct assembly; the air duct assembly is arranged in the inner container, and the air duct assembly comprises a side air duct structure and a top air duct structure; the side air duct structure is arranged on the side of the inner container along the width direction to form a side air outlet and a side air outlet opening; the top air duct structure is arranged on the top of the inner container, and the top air duct structure is configured with a top air outlet opening, a front air guide duct and a rear air guide duct; cold air in a heat exchange cavity is guided to the top air outlet opening through the front air guide duct, and cold air in the heat exchange cavity is guided to the side air outlet and the side air outlet opening through the rear air guide duct, so that part of the cold air from the heat exchange cavity is blown downward from the top air outlet opening to the front end of the refrigeration chamber, and the other part of the cold air is blown from the side air outlet to the middle part of the refrigeration chamber along the depth direction, thereby reducing the temperature difference of the refrigeration chamber along the depth direction.

Description

Technical Field

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

[0002] Refrigerators, which combine refrigeration / freezing with product display functions, are widely used in commercial settings such as supermarkets, convenience stores, and restaurants. They maintain the freshness of food, beverages, and other products through a low-temperature environment, and enhance product visibility through transparent door designs, thereby boosting sales.

[0003] In related technologies, freezers have air outlets on the rear duct cover of the refrigeration compartment. Air is drawn into the refrigeration compartment by a top-mounted fan, cooled by the evaporator, and then blown back into the refrigeration compartment through the air outlets on the rear duct cover, thus lowering the temperature inside the compartment. However, these freezers suffer from a large temperature difference within the refrigeration compartment. Utility Model Content

[0004] This application provides a freezer that can solve the technical problem of large temperature differences inside the refrigeration room.

[0005] This application provides a freezer, including:

[0006] The inner liner forms a gallbladder cavity, and the front part of the gallbladder cavity has an opening for taking in and putting out.

[0007] The air duct assembly, located within the biliary cavity, includes:

[0008] The rear air duct cover is located at the rear of the duct cavity and divides the duct cavity into a cooling chamber and a heat exchange chamber. The cooling chamber is connected to the inlet / outlet. The rear air duct cover is equipped with a rear return air inlet, which is connected to both the cooling chamber and the heat exchange chamber.

[0009] A side air duct structure is provided on at least one side of the inner liner along the width direction and is used to form a side air outlet; the side air duct structure is constructed with a side air outlet, which is connected to the side air outlet and the refrigeration compartment respectively.

[0010] The top air duct structure is located at the top of the inner liner and forms the top air outlet duct. The top air duct structure includes:

[0011] The top air outlet is located at the bottom front end of the top air duct structure and is connected to both the top air outlet duct and the cooling room.

[0012] The front air duct is connected to the heat exchange chamber and the top air duct, respectively;

[0013] The side air ducts are connected to the heat exchange chamber and the side air outlet duct, respectively.

[0014] The refrigerator in this embodiment guides the cold air in the heat exchange chamber to the top air outlet and the top air vent through the front air duct, and guides the cold air in the heat exchange chamber to the side air outlet and the side air vent through the rear air duct. This causes part of the cold air from the heat exchange chamber to be blown downwards from the top air vent toward the front end of the refrigeration compartment, and the other part to be blown from the side air vent toward the middle of the refrigeration compartment along the depth direction. The cold air supplemented at the side air vent lowers the temperature of the air flowing into the rear return air vent in the refrigeration compartment, reducing the temperature difference between the front and rear ends of the refrigeration compartment, thereby reducing the temperature difference along the depth direction of the refrigeration compartment.

[0015] In some embodiments of this application, the inner liner is provided with a side air duct structure and a side air outlet duct on both sides along the width direction;

[0016] There are two side air ducts, which are located on both sides of the front air duct along its width; the two side air ducts are connected to the corresponding side air outlet ducts.

[0017] With this configuration, the two side air ducts are connected to the corresponding side air outlets, so that cold air is delivered to the corresponding side air outlets through the side air ducts. The side air outlets on both sides of the inner liner along the width direction deliver cold air into the refrigeration room, thereby reducing the temperature difference in the refrigeration room along the width direction of the inner liner.

[0018] In some embodiments of this application, the dimension of the front air duct increases from back to front in the width direction;

[0019] The dimension of the side air duct along the depth direction of the inner liner increases from the end away from the side air outlet duct to the end closer to the side air outlet duct.

[0020] With this configuration, the dimensions of the front air duct increase from back to front in the width direction, thereby increasing the diffusion range of the air flowing out from the end of the front air duct near the top air outlet in the width direction. This allows the air blown out by the front air duct to extend to both ends of the top air outlet in the width direction, reducing the possibility that the air blown out by the front air duct cannot reach both ends of the top air outlet in the width direction. This, in turn, reduces the possibility that the two ends of the front of the refrigeration compartment will not have airflow in the width direction, and reduces the temperature difference at the front of the refrigeration compartment in the width direction.

[0021] The dimension of the side air duct along the depth direction of the inner liner increases from the end away from the side air outlet to the end closer to the side air outlet. This increases the diffusion range of the air flowing out from the end of the side air duct closer to the side air outlet along the depth direction, thereby increasing the coverage range of the air blown from the side air duct to the side air outlet along the depth direction. This reduces the possibility that the cold air from the side air duct is difficult to flow to the side air outlets at both ends of the depth direction, increases the coverage range of the cold air blown from the side air outlets to the refrigeration room along the depth direction, and further reduces the temperature difference of the refrigeration room along the depth direction.

[0022] In some embodiments of this application, the top air duct structure includes a top air duct component, which is enclosed with the inner liner to form a top air outlet duct, and the bottom front end of the top air duct component is provided with a top air outlet.

[0023] This design, with the top air duct component and the inner liner enclosing the top air outlet duct, simplifies the structure of the top air duct component, reduces the material consumption of the top air duct component, and lowers the cost of the freezer.

[0024] In some embodiments of this application, the top air duct structure further includes an air guide, which is disposed on the top of the top air duct component and is used to form a front air guide and a side air guide.

[0025] With this configuration, the air guide can be constructed with a front air guide duct and a side air guide duct, or the air guide can be enclosed with the top air guide component to form a front air guide duct and a side air guide duct.

[0026] In some embodiments of this application, the air guide is constructed with a first air guide groove and a second air guide groove with a bottom opening;

[0027] The top air duct component covers the opening of the first air guide groove and forms a front air guide duct with the air guide component;

[0028] The top air duct component also covers the opening of the second air guide slot and forms a side air guide duct with the air guide component.

[0029] With this configuration, the air guide and the top air duct component are joined together along the height direction of the inner liner to form the front air guide and the side air guide. While keeping the dimensions of the air guide in the height direction of the inner liner unchanged, the dimension in the height direction occupied by the wall thickness of the air guide is reduced, thereby increasing the dimensions of the front air guide and the side air guide along the height direction, thus improving the air guiding efficiency of the front air guide and the side air guide.

[0030] In some embodiments of this application, the top wind duct component includes:

[0031] The top air duct cover is spaced apart from the top of the inner liner. The front end of the top air duct cover is bent downward to form a first bent plate, and the bottom end of the first bent plate is bent forward to form a second bent plate.

[0032] The front windshield is located in front of the top air duct cover. The top of the front windshield is connected to the top of the inner liner. The bottom of the front windshield is bent backward to form a third bend plate. The third bend plate and the second bend plate are spaced apart along the depth direction of the inner liner to form a top air outlet. The front windshield, the top air duct cover, and the inner liner together form a top air outlet duct.

[0033] With this configuration, the front windshield obscures the top air duct cover, making it difficult for users to observe the top air duct cover and improving the decorative effect of the freezer.

[0034] In some embodiments of this application, the top air duct component further includes an air outlet net with multiple mesh openings. The air outlet net is located between the first bent plate and the front windshield plate, and overlaps the tops of the second and third bent plates respectively.

[0035] With this configuration, the multiple mesh openings on the air outlet can disperse the airflow between the first bending plate and the front windshield to each mesh opening, improving the uneven distribution of airflow strength from the top air outlet and enhancing the uniformity of the airflow from the top air outlet.

[0036] In some embodiments of this application, the inner liner has gallbladder sidewalls at both ends along the width direction, and the gallbladder sidewalls are constructed with grooves that are recessed away from the gallbladder cavity.

[0037] The side air duct structure includes a side air duct cover plate, which has a side air outlet. The side air duct cover plate covers the groove opening of the groove and surrounds the side wall of the duct to form a side air outlet duct.

[0038] This design, with the side air duct cover plate and the side wall of the duct forming a side air outlet duct, simplifies the structure of the side air duct cover plate and facilitates processing and manufacturing.

[0039] In some embodiments of this application, the top air duct structure is further configured with a total air inlet, which is connected to the end of the front air duct away from the top air outlet and the end of the side air duct away from the side air outlet, respectively.

[0040] The freezer also includes a fan, which is located at the top of the heat exchange chamber. The fan has an air inlet and an air outlet, with the air inlet connected to the heat exchange chamber and the air outlet connected to the main air inlet.

[0041] With this configuration, the main air inlet is connected to the fan outlet. The cold air flowing from the fan outlet first reaches the main air inlet, and then flows into the front and side air ducts. When assembling the top air duct structure and fan, only the main air inlet needs to be connected to the fan outlet; there's no need to connect the front and side air ducts separately to the outlets. This simplifies the assembly of the top air duct structure and fan, and improves the manufacturing efficiency of the freezer. Attached Figure Description

[0042] To more clearly illustrate the implementation methods in the embodiments of this application or related technologies, the accompanying drawings used in the description of the embodiments or related technologies 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.

[0043] Figure 1 A schematic diagram of the structure of the freezer according to an embodiment of this application is shown. Figure 1 ;

[0044] Figure 2 A schematic diagram of the structure of the freezer according to an embodiment of this application is shown. Figure 2 ;

[0045] Figure 3 It shows Figure 2 Sectional view along the middle AA direction;

[0046] Figure 4 This invention provides a schematic diagram of the structure of the inner liner and air duct assembly in a refrigerator according to an embodiment of this application.

[0047] Figure 5 It shows Figure 4 A partial diagram of the exploded structure;

[0048] Figure 6 It shows Figure 2 Sectional view along the BB direction;

[0049] Figure 7 This invention illustrates a schematic diagram of the air duct assembly and cross-flow fan in a freezer according to an embodiment of this application.

[0050] Figure 8 The exploded view of the side air duct structure, top air duct structure, and cross-flow fan in the freezer according to an embodiment of this application is shown. Figure 1 ;

[0051] Figure 9 The exploded view of the side air duct structure, top air duct structure, and cross-flow fan in the freezer according to an embodiment of this application is shown. Figure 2 ;

[0052] Figure 10 It shows Figure 3 A cross-sectional view along the CC direction;

[0053] Figure 11 It shows Figure 10 A magnified view of a portion of point P in the middle.

[0054] Explanation of reference numerals in the attached figures:

[0055] 10-Shell;

[0056] 20-Inner Liner;

[0057] 201 - Refrigeration compartment; 202 - Heat exchange chamber;

[0058] 203 - Inlet / outlet; 210 - Lateral wall of the gallbladder;

[0059] 211 - Groove; 220 - Posterior wall of the gallbladder;

[0060] 230 - Top wall of the gallbladder; 240 - Bottom wall of the gallbladder;

[0061] 241 - First bottom wall; 242 - Second bottom wall;

[0062] 243 - Connecting wall;

[0063] 30-Gate body;

[0064] 410 - Rear air duct cover; 411 - Rear return air vent;

[0065] 420-Side air duct structure;

[0066] 421-Side air duct cover; 4211-Side air outlet duct;

[0067] 4212 - Side air outlet; 422 - Side air nozzle;

[0068] 4221 - Connecting frame; 4222 - Air guide plate;

[0069] 430 - Top wind tunnel structure;

[0070] 4301 - Front air duct; 4302 - Side air duct;

[0071] 4303 - Main air inlet; 431 - Top air duct component;

[0072] 4311 - Top air duct cover; 4312 - First bend plate;

[0073] 4313 - Second bend plate; 4314 - Top air outlet duct;

[0074] 4315 - Top air vent; 4316 - Front windshield;

[0075] 4317 - Third bend plate; 432 - Air outlet mesh;

[0076] 4321 - Mesh; 433 - Air guide;

[0077] 4331 - First air guide slot; 4332 - Second air guide slot;

[0078] 440-bottom air duct structure;

[0079] 441 - Bottom air duct cover; 442 - Return air chamber;

[0080] 443 - Bottom connecting plate; 444 - Bottom bending plate;

[0081] 445-Bottom return air vent;

[0082] 50-Crossflow fan;

[0083] 501 - Air inlet; 502 - Air outlet. Detailed Implementation

[0084] To make the objectives and implementation methods of this application clearer, the exemplary implementation methods of this application will be clearly and completely described below with reference to the accompanying drawings of the exemplary embodiments of this application. Obviously, the exemplary embodiments described are only some embodiments of this application, and not all embodiments.

[0085] It should be noted that the brief descriptions of terms in this application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise stated, these terms should be understood in their ordinary and common meaning.

[0086] The terms "first," "second," "third," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar or related objects or entities, and do not necessarily imply a specific order or sequence, unless otherwise specified. It should be understood that such terms are interchangeable where appropriate.

[0087] The terms “comprising” and “having”, and any variations thereof, are intended to cover but not exclude inclusion, for example, a product or device that includes a range of components is not necessarily limited to all of the components that are clearly listed, but may include other components that are not clearly listed or that are inherent to such product or device.

[0088] As stated in the background section, the freezers in the related technology have the problem of large temperature differences within the refrigeration chamber. The inventors have discovered that the reason for this problem is that in the freezers in the related technology, the air outlet is constructed on the rear air duct cover at the rear of the refrigeration chamber, and the rear return air vent is located at the top of the refrigeration chamber. When the freezer is refrigerating the refrigeration chamber, the air in the refrigeration chamber flows from the rear return air vent at the top to the side of the rear air duct cover away from the refrigeration chamber, and is blown from the air outlet to the rear side of the refrigeration chamber. Since the temperature of the cold air entering the refrigeration chamber gradually increases during the flow, the temperature at the rear of the refrigeration chamber is lower, while the temperature at the front of the refrigeration chamber is higher, resulting in a large temperature difference along the depth direction of the refrigeration chamber.

[0089] To address the aforementioned technical problems, this application provides a refrigerator with a side air duct structure on the side of the inner liner along its width to form a side air outlet and a side air vent; a top air duct structure is provided on the top of the inner liner, the top air duct structure having a top air vent, a front air guide duct, and a rear air guide duct; the front air guide duct guides the cold air in the heat exchange chamber to the top air vent, and the rear air guide duct guides the cold air in the heat exchange chamber to the side air outlet and the side air vent, so that part of the cold air from the heat exchange chamber is blown downward from the top air vent to the front end of the refrigeration compartment, and the other part is blown from the side air vent to the middle of the refrigeration compartment along its depth, thereby reducing the temperature difference along the depth of the refrigeration compartment.

[0090] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0091] refer to Figure 1 The freezer provided in this application embodiment may include a cabinet having a refrigeration compartment 201, a door 30 connected to the cabinet to open and close the refrigeration compartment 201, and a refrigeration device for supplying cold air to the refrigeration compartment 201.

[0092] The refrigerated room 201 is used to place or store items.

[0093] At least a portion of the door 30 may be translucent, so that when the refrigeration compartment 201 is closed, the items inside the refrigeration compartment 201 can be observed from the outside of the door 30, thus enabling the freezer to have a product display function.

[0094] The refrigeration unit can be installed inside the cabinet. The refrigeration unit can be any refrigeration unit as described in related technologies. The refrigeration unit is used to provide cold air to the refrigeration chamber 201 to lower the temperature inside the refrigeration chamber 201.

[0095] The refrigeration unit may include a compressor, condenser, throttling element, and evaporator, all connected by piping. The throttling element may be a capillary tube or an electronic expansion valve. Refrigerant flows through the piping; as it passes through the evaporator, it evaporates and absorbs heat, lowering the evaporator's temperature. Air flowing through the evaporator also cools down; this low-temperature air is then delivered to the refrigeration compartment 201 to further reduce the temperature within the compartment, enabling the freezer to perform low-temperature storage.

[0096] refer to Figure 2 and Figure 3 The cabinet may include an inner liner 20, and a refrigeration compartment 201 may be formed inside the inner liner 20. A retrieval opening 203 may be formed on the front side of the refrigeration compartment 201, through which items can be retrieved from the refrigeration compartment 201 or placed into the refrigeration compartment 201.

[0097] The following is for reference Figure 3 The structure of the inner liner 20 is described.

[0098] The inner liner 20 may include a posterior wall 220, which is located on the rear side of the inner liner 20 and is positioned opposite to the loading / unloading port 203. Figure 3 The positive direction of Y along the depth direction of the inner liner 20 is the front, and the negative direction of Y along the depth direction of the inner liner 20 is the back.

[0099] The inner liner 20 may also include a top wall 230, which is located at the top of the inner liner 20, and the rear end of the top wall 230 is connected to the top end of the posterior wall 220.

[0100] The inner liner 20 may also include a bottom wall 240, which is located at the bottom of the inner liner 20. The bottom wall 240 and the top wall 230 may be arranged opposite to each other and spaced apart along the height direction Z of the inner liner 20. The rear end of the bottom wall 240 is connected to the bottom end of the posterior wall 220.

[0101] The inner liner 20 may further include two sidewalls 210, which are arranged opposite to each other and spaced apart along the width direction X of the inner liner 20. The top ends of the two sidewalls 210 are respectively connected to the two ends of the top wall 230 along the width direction X of the inner liner 20. The bottom ends of the two sidewalls 210 are respectively connected to the two ends of the bottom wall 240 along the width direction X of the inner liner 20. The rear ends of the two sidewalls 210 are respectively connected to the two ends of the posterior wall 220 along the width direction X of the inner liner 20.

[0102] The posterior wall 220, the superior wall 230, the inferior wall 240, and the two lateral walls 210 constitute the exterior of the inner liner 20. The posterior wall 220, the superior wall 230, the inferior wall 240, and the two lateral walls 210 enclose and form the cavity of the inner liner 20. The refrigeration compartment 201 may occupy part of the cavity.

[0103] refer to Figure 1 and Figure 3 The cabinet may also include a shell 10. The shell 10 is attached to the outside of the inner liner 20 to form the appearance of the cabinet.

[0104] In some possible implementations of the embodiments of this application, the door 30 can be rotatably connected to the cabinet to open or close the access port 203 of the refrigeration compartment 201.

[0105] The door 30 can have an open state and a closed state.

[0106] When the door 30 is in the open state, the door 30 opens the access port 203, through which items can be taken from or placed into the refrigeration room 201.

[0107] refer to Figure 1 When the door 30 is closed, the door 30 closes the take-out port 203 to reduce the leakage of cold air from the take-out port 203 in the refrigeration compartment 201, thereby improving the refrigeration effect of the freezer on the items in the refrigeration compartment 201.

[0108] In some possible implementations of the embodiments of this application, the freezer may also include an air duct assembly, which may be disposed in the inner cavity. The air duct assembly is used to transport cold air flowing through the evaporator to the refrigeration compartment 201 to reduce the temperature inside the refrigeration compartment 201.

[0109] In some possible implementations of the embodiments of this application, reference is made to Figure 3 , Figure 4 and Figure 5 The air duct assembly may include a rear air duct cover 410, which is disposed at the rear of the duct cavity. The rear air duct cover 410 is spaced apart from the rear wall 220 of the duct and divides the duct cavity into a cooling chamber 201 and a heat exchange chamber 202, with the heat exchange chamber 202 located behind the cooling chamber 201. That is, the cooling chamber 201 is located in front of the rear air duct cover 410, and the heat exchange chamber 202 is located behind the rear air duct cover 410.

[0110] refer to Figure 3 , Figure 4 and Figure 5 The rear air duct cover 410 can be configured with a rear return air inlet 411, which can be connected to the cooling room 201 and the heat exchange chamber 202 respectively. The air in the cooling room 201 can flow into the heat exchange chamber 202 through the rear return air inlet 411.

[0111] The evaporator can be installed in the heat exchange chamber 202. The air in the cooling chamber 201 flows into the heat exchange chamber 202 through the return air vent 411 and its temperature decreases after exchanging heat with the evaporator.

[0112] The evaporator can be located above the rear return air inlet 411 so that the air flowing from the rear return air inlet 411 into the heat exchange chamber 202 flows through the evaporator as it flows upward along the heat exchange chamber 202, and exchanges heat with the evaporator.

[0113] In some possible implementations of the embodiments of this application, reference is made to Figure 3 The bottom wall 240 of the gallbladder may include a first bottom wall 241, a second bottom wall 242 and a connecting wall 243. The first bottom wall 241 is located behind the second bottom wall 242 and above the second bottom wall 242. The top end of the connecting wall 243 is connected to the end of the first bottom wall 241 away from the posterior wall 220 of the gallbladder, and the bottom end of the connecting wall 243 is connected to the end of the second bottom wall 242 near the posterior wall 220 of the gallbladder.

[0114] refer to Figure 3The air duct assembly may further include a bottom air duct structure 440. The bottom air duct structure 440 may include a bottom air duct cover 441, which is disposed above the first bottom wall 241, and the rear end of the bottom air duct cover 441 is connected to the bottom end of the rear air duct cover 410. The bottom air duct cover 441 and the inner liner 20 enclose a return air cavity 442 located below the bottom air duct cover 441, and the return air cavity 442 communicates with the heat exchange cavity 202.

[0115] refer to Figure 3 The bottom air duct structure 440 may also include a bottom connecting plate 443, which is connected to the connecting wall 243. The top end of the bottom connecting plate 443 extends above the first bottom wall 241 and bends toward the rear wall 220 to form a bottom bending plate 444. The top end of the bottom bending plate 444 is connected to the bottom air duct cover plate 441.

[0116] refer to Figure 3 The bottom bend plate 444 is constructed with multiple bottom return air inlets 445, which are connected to the refrigeration chamber 201 and the return air cavity 442 respectively. Air at the bottom of the refrigeration chamber 201 can flow into the return air cavity 442 through the bottom return air inlets 445, and then flow into the heat exchange cavity 202 through the rear end of the return air cavity 442, thereby improving the uniformity of the return air.

[0117] refer to Figure 3 , Figure 4 , Figure 5 and Figure 6 The air duct assembly may also include a side air duct structure 420, which is disposed on at least one side of the inner liner 20 along the width direction X. That is, at least one of the two liner sidewalls 210 is provided with the side air duct structure 420 on the side facing the refrigeration compartment 201.

[0118] The side air duct structure 420 may be configured with a side air outlet 4211, or the side air duct structure 420 may be enclosed with the side wall 210 of the radiator to form a side air outlet 4211. The side air duct structure 420 may be configured with a side air outlet 4212, which is connected to the side air outlet 4211 and the refrigeration compartment 201 respectively.

[0119] In some possible implementations of the embodiments of this application, the inner liner 20 may be provided with side air duct structures 420 on both sides along the width direction X; there are two side air ducts 4211, and the two side air ducts 4211 correspond to the two sides of the inner liner 20 along the width direction X respectively.

[0120] There are two side air ducts 4302, which are located on both sides of the front air duct 4301 along the width direction X. The two side air ducts 4302 are connected to the corresponding side air outlets 4211, so as to deliver cold air to the corresponding side air outlets 4211 through the side air ducts 4302. The side air outlets 4212 on both sides of the inner liner 20 along the width direction X deliver cold air into the cooling room 201, thereby reducing the temperature difference in the cooling room 201 along the width direction X of the inner liner 20.

[0121] In some possible implementations of the embodiments of this application, reference is made to Figure 5 The lateral wall 210 of the gallbladder may be constructed with a groove 211 that is concave away from the gallbladder cavity.

[0122] refer to Figure 3 , Figure 4 , Figure 5 and Figure 6 The side air duct structure 420 may include a side air duct cover 421, which may have a side air outlet 4212. The side air duct cover 421 covers the groove of the recess 211 and surrounds the side wall 210 of the duct to form a side air outlet 4211. The side air duct cover 421 has a simple structure and is easy to process and manufacture.

[0123] In some other possible implementations of the embodiments of this application, the side air duct structure 420 can be a side air outlet duct, the side air outlet duct is constructed with a side air outlet 4211, the side air outlet duct is located in the gallbladder cavity and connected to the gallbladder sidewall 210, and the side of the side air outlet duct away from the gallbladder sidewall 210 can be constructed with a side air outlet 4212.

[0124] refer to Figure 3 , Figure 5 , Figure 6 and Figure 7 The air duct assembly may also include a top air duct structure 430, which is disposed at the top of the bladder cavity. The top air duct structure 430 may be configured with an outlet air duct 4314, or the top air duct structure 430 may be enclosed with the inner bladder 20 to form an outlet air duct 4314.

[0125] refer to Figure 3 , Figure 6 and Figure 7 The top air duct structure 430 can be configured with a top air outlet 4315, which can be configured at the bottom front end of the top air duct structure 430. The top air outlet 4315 can be connected to the top air duct 4314 and the cooling room 201 respectively.

[0126] refer to Figure 5 and Figure 6The top air duct structure 430 can also be configured with a front air duct 4301, which is connected to the heat exchange chamber 202 and the top air outlet duct 4314 respectively. The cold air in the heat exchange chamber 202 is guided to the top air outlet duct 4314 through the front air duct 4301, and then flows to the top air outlet 4315. The cold air blows downward from the top air outlet 4315 to the front end of the refrigeration chamber 201. On the one hand, it can reduce the temperature at the front end of the refrigeration chamber 201, so that the temperature of beverages and other items placed in the front row of the refrigeration chamber 201 is lowered. On the other hand, the cold air blown downward from the top air outlet 4315 to the front end of the refrigeration chamber 201 can form an air curtain at the front end of the refrigeration chamber 201. When the door 30 is opened, the air curtain forms an airflow barrier to reduce the heat exchange rate between the hot air outside the refrigerator and the cold air inside the refrigeration chamber 201, thereby improving the heat preservation effect of the refrigeration chamber 201.

[0127] The cold air blown from the top air outlet 4315 into the cooling room 201 flows roughly from front to back and from top to bottom within the cooling room 201, and then flows from the rear return air outlet 411 into the heat exchange chamber 202. The air temperature rises at the rear return air outlet 411, and the heated air flows from the rear return air outlet 411 into the heat exchange chamber 202. After exchanging heat with the evaporator in the heat exchange chamber 202, the temperature drops, and the air is blown again from the front air duct 4301, the top air outlet duct 4314, and the top air outlet 4315 towards the front end of the cooling room 201. This cycle continues to deliver cold air to the front end of the cooling room 201.

[0128] refer to Figure 5 , Figure 6 and Figure 7 The top air duct structure 430 can also be configured with a side air guide duct 4302, which is connected to the heat exchange chamber 202 and the side air outlet duct 4211 respectively. The cold air in the heat exchange chamber 202 is guided to the side air guide duct 4302 through the side air guide duct 4302, and then flows to the side air outlet 4212. The cold air is blown from the side air outlet 4212 towards the middle position of the cooling room 201 along the depth direction Y, so as to reach the middle position of the cooling room 201 along the depth direction Y. Supplementing with cold air, because the airflow path between the side air outlet 4212 and the rear return air outlet 411 is shorter than that between the top air outlet 4315 and the rear return air outlet 411, the temperature rise of the cold air blowing from the side air outlet 4212 to the cooling room 201 at the rear return air outlet 411 is less than the temperature rise of the cold air blowing from the top air outlet 4315 to the cooling room 201 at the rear return air outlet 411. The supplemented cold air at the side air outlet 4212 lowers the temperature of the air flowing from the cooling room 201 to the rear return air outlet 411, reducing the temperature difference between the front and rear ends of the cooling room 201, thereby reducing the temperature difference along the depth Y direction of the cooling room 201.

[0129] It should be noted that the middle position of the refrigeration chamber 201 along the depth direction Y in this embodiment may not be the middle position in a strict sense. For example, it may be the position where the refrigeration chamber 201 is located between the front end and the rear end.

[0130] In some possible implementations of the embodiments of this application, reference is made to Figure 6 and Figure 7 The top air duct structure 430 may include a top air duct component 431, which together with the inner liner 20 forms a top air outlet duct 4314. The bottom front end of the top air duct component 431 is provided with a top air outlet 4315.

[0131] The top air duct 4314 is formed by the top air duct component 431 and the inner liner 20, which simplifies the structure of the top air duct component 431, reduces the material consumption of the top air duct component 431, and lowers the cost of the freezer.

[0132] In some possible implementations of the embodiments of this application, reference is made to Figure 7 , Figure 8 and Figure 9 The top air duct component 431 may include a top air duct cover plate 4311, which is disposed inside the bladder cavity and spaced apart from the top of the inner bladder 20 (i.e., the top wall 230 of the bladder).

[0133] The rear end of the top air duct cover 4311 can be connected to the top end of the rear air duct cover 410. The front end of the top air duct cover 4311 can be connected to the top wall 230 of the duct.

[0134] The front end of the top air duct cover 4311 may be provided with a first connecting hole, and the top wall 230 of the duct may be provided with a first mating hole. The first mating hole and the first connecting hole are arranged opposite to each other. Fastening bolts are inserted into the first connecting hole and the first mating hole to fix the front end of the top air duct cover 4311 to the top wall 230 of the duct. When the front end of the top air duct cover 4311 is connected to the top wall 230 of the duct by fastening bolts, the fastening bolts located between the front end of the top air duct cover 4311 and the top wall 230 of the duct have a certain length so that the front end of the top air duct cover 4311 and the top wall 230 of the duct are spaced apart.

[0135] refer to Figure 7 , Figure 8 and Figure 9 The front end of the top air duct cover plate 4311 is bent downward to form a first bent plate 4312, and the bottom end of the first bent plate 4312 is bent forward to form a second bent plate 4313.

[0136] refer to Figure 7 , Figure 8 and Figure 9The top air duct component 431 may further include a front windshield 4316, which is located in front of the top air duct cover 4311. The top end of the front windshield 4316 is connected to the top of the inner liner 20. The top end of the front windshield 4316 can be bent backward to form a connecting plate. A second connecting hole may be constructed on the connecting plate, and a second mating hole may be constructed on the top wall 230 of the liner. The second mating hole and the second connecting hole are opposite to each other. Fastening bolts are inserted into the second connecting hole and the second mating hole to fix the connecting plate to the top wall 230 of the liner.

[0137] refer to Figure 7 , Figure 8 and Figure 9 The bottom end of the front windshield 4316 is bent backward to form a third bent plate 4317. The third bent plate 4317 is located in front of the second bent plate 4313. The third bent plate 4317 and the second bent plate 4313 are spaced apart along the depth direction Y of the inner liner 20, forming a top air outlet 4315. The front windshield 4316, the top air duct cover 4311, and the inner liner 20 together form a top air outlet duct 4314.

[0138] The front windshield 4316 obscures the front of the top air duct cover 4311, making it difficult for users to observe the top air duct cover 4311 and improving the decorative effect of the freezer.

[0139] The front windshield 4316 can extend from one side wall 210 of the inner liner to the other side wall 210. On the one hand, it can improve the shielding effect of the top air duct cover 4311. On the other hand, it can extend the top air outlet 4315 from one side wall 210 of the inner liner to the other side wall 210, increasing the extension length of the air outlet along the width direction X of the inner liner 20. This improves the blocking efficiency of the air curtain blowing downward from the air outlet to the front of the cooling compartment 201 for the air inside and outside the cooling compartment 201.

[0140] In some possible implementations of the embodiments of this application, reference is made to Figure 3 , Figure 8 , Figure 10 and Figure 11 The side air duct structure 420 may further include a side air outlet 422, which is connected to the side air duct cover 421 and is opposite to a portion of the plurality of side air outlets 4212. The side air outlet 422 includes a connecting frame 4221 and a plurality of air guide plates 4222. The plurality of air guide plates 4222 are spaced apart along the depth direction Y of the inner liner 20, and the end of the air guide plate 4222 facing away from the side air duct 4211 extends forward at an angle to guide the air outlet 4212 toward the front end of the refrigeration compartment 201, so as to further reduce the temperature at the front end of the refrigeration compartment 201 and lower the temperature of beverages and other items placed in the front row of the refrigeration compartment 201.

[0141] In some possible implementations of the embodiments of this application, reference is made to Figure 7 , Figure 8 , Figure 9 and Figure 11 The top air duct component 431 may also include an air outlet net 432, which has mesh holes 4321. The air outlet net 432 is located between the first bending plate 4312 and the front windshield plate 4316, and overlaps the top of the second bending plate 4313 and the third bending plate 4317 respectively.

[0142] The air outlet mesh 432 overlaps the top of the second bending plate 4313 and the third bending plate 4317, which simplifies the assembly structure between the air outlet mesh 432, the top air duct cover plate 4311, and the front wind deflector plate 4316, and improves the assembly and manufacturing efficiency of the freezer.

[0143] The multiple mesh holes 4321 constructed on the air outlet mesh 432 can disperse the airflow between the first bending plate 4312 and the front windshield 4316 to each mesh hole 4321, thereby improving the uneven distribution of airflow strength from the top air outlet 4315 and enhancing the uniformity of the airflow from the top air outlet 4315.

[0144] In some other possible implementations of the embodiments of this application, the top air duct component 431 may include a top air duct cover plate 4311, which is disposed in the gallbladder cavity and spaced apart from the top wall 230 of the gallbladder.

[0145] The front end of the top air duct cover 4311 can be bent upward to form a fourth bend plate. The top of the fourth bend plate extends to the bottom of the top wall 230 of the duct and bends backward to form a fifth bend plate. The fifth bend plate is connected to the top wall 230 of the duct by fastening bolts. The end of the top air duct cover 4311 near the fourth bend plate is provided with a top air outlet 4315.

[0146] In some other possible implementations of the embodiments of this application, reference is made to Figure 7 , Figure 8 and Figure 9 The top air duct structure 430 also includes an air guide 433, which is disposed on the top of the top air duct component 431 and is located behind the top air outlet 4315.

[0147] In some embodiments, the air guide 433 may be configured with a front air guide 4301 and a side air guide 4302.

[0148] In other embodiments, reference is made to Figure 7 , Figure 8 and Figure 9 The air guide component 433 can be enclosed with the top air duct component 431 to form the front air guide duct 4301 and the side air guide duct 4302.

[0149] In some possible implementations of the embodiments of this application, reference is made to Figure 9 The air guide 433 can be constructed with a first air guide groove 4331 and a second air guide groove 4332 with a bottom opening.

[0150] The top air duct component 431 covers the opening of the first air guide groove 4331 and forms a front air guide duct 4301 with the air guide component 433.

[0151] The top air duct component 431 also covers the opening of the second air guide groove 4332 and forms a side air guide duct 4302 with the air guide component 433.

[0152] The air guide 433 can occupy part of the space between the top air duct cover 4311 and the top wall 230 of the duct. The space between the top air duct cover 4311 and the top wall 230 of the duct in front of the air guide 433 forms the top air outlet duct 4314. Or, the space between the top air duct cover 4311 and the top wall 230 of the duct in front of the front air guide duct 4301 forms the top air outlet duct 4314.

[0153] The front air guide duct 4301 and the side air guide duct 4302 are formed by connecting the air guide component 433 and the top air duct component 431 along the height direction Z of the inner liner 20. While keeping the size of the air guide component 433 along the height direction Z unchanged, the size of the air guide component 433 in the height direction Z is reduced, thereby increasing the size of the front air guide duct 4301 and the side air guide duct 4302 along the height direction Z, thus improving the air guiding efficiency of the front air guide duct 4301 and the side air guide duct 4302.

[0154] In some possible implementations of the embodiments of this application, reference is made to Figure 6 The front air duct 4301 increases in size from back to front along the width direction X to increase the diffusion range of the air flowing out from the end of the front air duct 4301 near the top air outlet 4315 along the width direction X. This allows the air blown out by the front air duct 4301 to extend to both ends of the top air outlet 4315 along the width direction X, reducing the possibility that the air blown out by the front air duct 4301 cannot flow to both ends of the top air outlet 4315 along the width direction X. This reduces the possibility that the front end of the refrigeration chamber 201 will not have airflow along the width direction X, and reduces the temperature difference at the front end of the refrigeration chamber 201 along the width direction X.

[0155] In some possible implementations of the embodiments of this application, reference is made to Figure 3 The side air outlets 4212 can be in multiple sets, and the multiple sets of side air outlets 4212 can be arranged at intervals along the height direction Z of the inner liner 20. Each set of side air outlets 4212 can include multiple side air outlets 4212 arranged at intervals along the depth direction Y of the inner liner 20.

[0156] In some possible implementations of the embodiments of this application, reference is made to Figure 6 The dimension of the side air duct 4302 along the depth direction Y of the inner liner 20 increases from the end away from the side air outlet 4211 to the end closer to the side air outlet 4211, so as to increase the diffusion range of the air flowing out of the side air duct 4302 near the side air outlet 4211 along the depth direction Y, so that the air blown from the side air duct 4302 to the side air outlet 4211 covers the depth direction Y, reducing the possibility that the cold air from the side air duct 4302 is difficult to flow to the side air outlets 4212 at both ends of the depth direction Y, increasing the coverage range of the cold air blown from the side air outlets 4212 to the cooling room 201 along the depth direction Y, and further reducing the temperature difference of the cooling room 201 along the depth direction Y.

[0157] In some possible implementations of this application's embodiments, the freezer further includes a fan, which is disposed at the top of the heat exchange chamber 202. (See reference...) Figure 9 The fan has an air inlet 501 and an air outlet 502. The air inlet 501 is connected to the heat exchange chamber 202, and the air outlet 502 is connected to the front air duct 4301 and the side air duct 4302 respectively.

[0158] When the fan rotates, the cold air in the heat exchange chamber 202 flows from the fan inlet 501 to the outlet 502, and then flows from the outlet 502 to the front guide duct 4301 and the side guide duct 4302. The fan is used to accelerate the circulation rate of air between the cooling chamber 201, the heat exchange chamber 202, the top outlet duct 4314, and the side outlet duct 4211.

[0159] In some possible implementations of the embodiments of this application, reference is made to Figure 6 and Figure 9 The top air duct structure 430 can also be configured with a main air inlet 4303, which is connected to the end of the front air duct 4301 away from the top air outlet 4315 and the end of the side air duct 4302 away from the side air outlet 4211.

[0160] The main air inlet 4303 is connected to the air outlet 502 of the fan. The cold air flowing out of the fan outlet 502 first flows to the main air inlet 4303, and then flows into the front air duct 4301 and the side air duct 4302 respectively. When assembling the top air duct structure 430 and the fan, it is only necessary to connect the main air inlet 4303 to the air outlet 502 of the fan. It is not necessary to connect the front air duct 4301 and the side air duct 4302 to the air outlet 502 separately, which simplifies the assembly difficulty of the top air duct structure 430 and the fan and improves the manufacturing efficiency of the freezer.

[0161] In some possible implementations of the embodiments of this application, reference is made to Figure 3 , Figure 6 , Figure 7 , Figure 8 and Figure 9 The fan can be a cross-flow fan 50. The axis of the cross-flow fan 50 can extend along the width direction X of the inner liner 20. The impeller of the cross-flow fan 50 extends along the width direction X of the inner liner 20, which increases the coverage of the airflow from the outlet 502 of the cross-flow fan 50 along the width direction X, making it easier for the airflow from the outlet 502 to flow into the front guide duct 4301 and the side guide duct 4302.

[0162] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

[0163] For ease of explanation, the above description has been provided in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Various modifications and variations can be obtained based on the above teachings. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, thereby enabling those skilled in the art to better utilize the above embodiments and various different variations of embodiments suitable for specific application considerations.

Claims

1. A freezer, characterized in that, include: The inner liner (20) has a gallbladder cavity, and the front part of the gallbladder cavity has an opening (203); An air duct assembly is disposed within the biliary cavity, the air duct assembly comprising: A rear air duct cover (410) is disposed at the rear of the duct cavity and divides the duct cavity into a refrigeration chamber (201) and a heat exchange chamber (202). The refrigeration chamber (201) is connected to the inlet / outlet (203). The rear air duct cover (410) is configured with a rear return air inlet (411), which is connected to the refrigeration chamber (201) and the heat exchange chamber (202) respectively. A side air duct structure (420) is disposed on at least one side of the inner liner (20) along the width direction and is used to form a side air outlet (4211); the side air duct structure (420) is configured with a side air outlet (4212), the side air outlet (4212) being connected to the side air outlet (4211) and the refrigeration chamber (201) respectively; A top air duct structure (430) is disposed at the top of the inner liner (20) and is used to form a top air outlet duct (4314). The top air duct structure (430) is constructed as follows: The top air outlet (4315) is constructed at the bottom front end of the top air duct structure (430) and is connected to the top air duct (4314) and the cooling room (201) respectively. The front air duct (4301) is connected to the heat exchange chamber (202) and the top air duct (4314) respectively; The side air duct (4302) is connected to the heat exchange chamber (202) and the side air outlet duct (4211), respectively.

2. The freezer according to claim 1, characterized in that, The inner liner (20) is provided with the side air duct structure (420) and the side air outlet duct (4211) on both sides along the width direction; There are two side air guides (4302), which are located on both sides of the front air guide (4301) along the width direction; the two side air guides (4302) are respectively connected to the corresponding side air outlet (4211).

3. The freezer according to claim 1, characterized in that, The dimensions of the front air duct (4301) increase from back to front along the width direction; The dimension of the side air duct (4302) along the depth direction of the inner liner (20) increases from the end away from the side air outlet (4211) to the end closer to the side air outlet (4211).

4. The freezer according to claim 1, characterized in that, The top air duct structure (430) includes a top air duct component (431), which together with the inner liner (20) forms the top air outlet duct (4314), and the bottom front end of the top air duct component (431) is provided with the top air outlet (4315).

5. The freezer according to claim 4, characterized in that, The top air duct structure (430) further includes an air guide (433), which is disposed on the top of the top air duct component (431) and is used to form the front air guide duct (4301) and the side air guide duct (4302).

6. The freezer according to claim 5, characterized in that, The air guide (433) is constructed with a first air guide groove (4331) and a second air guide groove (4332) with a bottom opening; The top air duct component (431) covers the opening of the first air guide groove (4331) and forms the front air guide duct (4301) together with the air guide component (433). The top air duct component (431) also covers the opening of the second air guide groove (4332) and forms the side air guide duct (4302) together with the air guide component (433).

7. The freezer according to any one of claims 4-6, characterized in that, The top air duct component (431) includes: The top air duct cover (4311) is spaced apart from the top of the inner liner (20). The front end of the top air duct cover (4311) is bent downward to form a first bending plate (4312), and the bottom end of the first bending plate (4312) is bent forward to form a second bending plate (4313). A front windshield (4316) is located in front of the top air duct cover (4311). The top of the front windshield (4316) is connected to the top of the inner liner (20). The bottom of the front windshield (4316) is bent backward to form a third bending plate (4317). The third bending plate (4317) and the second bending plate (4313) are spaced apart along the depth direction of the inner liner (20) to form the top air outlet (4315). The front windshield (4316), the top air duct cover (4311), and the inner liner (20) together form the top air outlet (4314).

8. The freezer according to claim 7, characterized in that, The top air duct component (431) also includes an air outlet net (432), which has mesh holes (4321). The air outlet net (432) is located between the first bending plate (4312) and the front windshield plate (4316), and overlaps the top of the second bending plate (4313) and the third bending plate (4317), respectively.

9. The freezer according to any one of claims 1-6, characterized in that, The inner liner (20) has gallbladder sidewalls (210) at both ends along the width direction, and the gallbladder sidewalls (210) are constructed with grooves (211) that are recessed away from the gallbladder cavity; The side air duct structure (420) includes a side air duct cover plate (421), which is configured with the side air outlet (4212); the side air duct cover plate (421) covers the groove of the groove (211) and surrounds the side wall (210) of the duct to form the side air outlet (4211).

10. The freezer according to any one of claims 1-6, characterized in that, The top air duct structure (430) is also provided with a main air inlet (4303), which is connected to one end of the front air duct (4301) away from the top air outlet (4315) and the other end of the side air duct (4302) away from the side air outlet (4211). The freezer also includes a fan, which is located at the top of the heat exchange chamber (202); the fan has an air inlet (501) and an air outlet (502), the air inlet (501) is connected to the heat exchange chamber (202), and the air outlet (502) is connected to the main air inlet (4303).

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