WO2023236277A1 - Air duct system of refrigeration apparatus, and refrigeration apparatus - Google Patents

Abstract

The present application relates to the technical field of refrigeration apparatuses. Provided are an air duct system of a refrigeration apparatus, and the refrigeration apparatus. The air duct system comprises: an ice-making air duct assembly, which is adapted to be arranged in a refrigerator compartment liner of the refrigeration apparatus and comprises an ice-making air duct front cover plate, wherein an ice-making air duct is formed between the ice-making air duct front cover plate and one part of a side wall of the refrigerator compartment liner, and is adapted to be in communication with an ice-making compartment to form an ice-making air circulation structure; and a refrigeration air duct assembly, which is adapted to be arranged in the refrigerator compartment liner and comprises a refrigeration air duct cover plate, wherein refrigeration air ducts are formed between the refrigeration air duct cover plate and the other part of the side wall of the refrigerator compartment liner, and comprise a first refrigeration air duct and a second refrigeration air duct, and the ice-making air duct is located between the first refrigeration air duct and the second refrigeration air duct. By means of the air duct system, the temperature distribution uniformity of a refrigerator compartment is improved in order to facilitate an increase in the frost-tolerant capacity of an ice-making evaporator, which reduces the energy consumption, increases the ice-making speed, and improves the surface quality of ice cubes.

Description

Air duct system and refrigeration equipment for refrigeration equipment

Cross-references to related applications

This application requires that the application number submitted on June 10, 2022 is 202210658372.8, the invention name is "Air duct system and refrigeration equipment for refrigeration equipment" and the application number is 202221461952.X, the invention name is "Air duct system and refrigeration equipment" Refrigeration Equipment" two Chinese patent applications, which are fully incorporated into this application by reference.

Technical field

The present application relates to the technical field of refrigeration equipment, and in particular to an air duct system and refrigeration equipment for refrigeration equipment.

Background technique

At present, there are many refrigeration equipments such as refrigerators equipped with ice machines, and the ice machines are located in the ice making room. In order to provide cooling capacity to the ice machine, an ice evaporator and an ice fan are also required. The ice-making chamber, ice-making evaporator and ice-making fan are large in size, occupying a large volume of the refrigerator compartment and limiting the overall size design of the ice-making evaporator. It not only affects the uniformity of temperature distribution in the refrigerator compartment, but also reduces the effective heat exchange area of the ice-making evaporator, resulting in poor frost-holding capacity of the ice-making evaporator and requiring frequent heating and defrosting, which not only increases the energy consumption of the refrigerator , also affects the ice making speed and ice quality.

Contents of the invention

This application aims to solve at least one of the technical problems existing in the prior art. To this end, this application proposes an air duct system for refrigeration equipment, which can improve the uniformity of temperature distribution in the refrigerator compartment, improve the frost holding capacity of the ice-making evaporator, reduce energy consumption, and improve the ice-making speed and ice surface quality.

This application also proposes a refrigeration equipment.

The air duct system of the refrigeration equipment according to the first embodiment of the present application includes:

The ice-making air duct assembly is suitable for being arranged in a refrigeration box of a refrigeration equipment, and includes an ice-making air duct front cover. The ice-making air duct front cover is adapted to be connected with a part of the side wall of the refrigeration box. An ice-making air duct is formed therebetween, and the ice-making air duct is suitable for communicating with the ice-making chamber in the refrigerator to form an ice-making air circulation structure;

The refrigeration air duct assembly is suitable for being disposed in the refrigeration box, and includes a refrigeration air duct cover. The refrigeration air duct cover is adapted to form a refrigeration air duct between the other part of the side wall, and the The refrigeration air duct includes a first refrigeration air duct and a second refrigeration air duct, and the ice making air duct is located between the first refrigeration air duct and the second refrigeration air duct.

According to the air duct system of the refrigeration equipment according to the embodiment of the present application, the refrigeration air duct cover is connected to a part of the side wall to form a refrigeration air duct, and the ice making air duct front cover is connected to another part of the side wall to form an ice making air duct. , so that the ice making air duct and the refrigeration air duct share one side wall of the refrigerator box, which reduces the occupation of the refrigerator compartment volume by the air duct. By arranging the first refrigeration air duct and the second refrigeration air duct located on both sides of the ice-making air duct, the ice-making air duct is located in the middle of the side wall of the refrigerator box, and the first refrigeration air duct and the second refrigeration air duct Located on both sides of the ice making air duct. This makes the distribution of cooling capacity in the cold storage room more even, and can also increase the area of the ice-making air duct corresponding to the side wall, which is conducive to increasing the effective area of the ice-making evaporator located in the ice-making air duct, thereby more reasonably matching the ice-making evaporator. The heat load of the ice machine and the area of the ice evaporator are conducive to increasing the ice making speed of the ice making machine, improving the frost holding capacity of the ice making evaporator, reducing the heating and defrosting frequency of the ice making evaporator, and reducing energy consumption. , improve the surface quality of ice cubes.

According to an embodiment of the present application, the top wall or bottom wall of the refrigeration box is provided with a refrigeration air duct air inlet, and one end of the first refrigeration air duct and the second refrigeration air duct is connected to the refrigeration air duct. The air inlets are connected, and the other end extends to the top wall or the bottom wall.

According to an embodiment of the present application, the refrigeration air duct further includes: a split air duct, and the first refrigeration air duct and the second refrigeration air duct pass through the split air duct and the air inlet of the refrigeration air duct respectively. Connected.

According to an embodiment of the present application, the refrigeration air duct assembly further includes: a refrigeration air duct rear cover, the refrigeration air duct rear cover is provided with a diverting air groove, and the refrigeration air duct cover is provided with a refrigeration air groove. , the refrigeration air duct rear cover is buckled with the refrigeration air duct cover to define the split air duct between the split air duct and the refrigeration air duct.

According to an embodiment of the present application, the split air duct is provided with a first air guide surface and a second air guide surface opposite to each other. The first air guide surface flows from the air inlet of the refrigeration air duct to the first refrigeration unit. The air duct extends obliquely, and the second air guide surface extends obliquely from the air inlet of the refrigeration air duct to the second refrigeration air duct.

According to one embodiment of the present application, the refrigeration air duct cover includes: a cover body and a refrigeration air duct insulation plate, and the refrigeration air duct insulation plate is located on the side of the cover body facing the refrigeration air duct. , the first refrigeration air duct and the second refrigeration air duct are formed between the refrigeration air duct insulation board and the side wall.

According to an embodiment of the present application, the ice-making air duct front cover is embedded in the refrigeration air duct cover.

According to an embodiment of the present application, the ice-making air duct assembly further includes: an insulation layer, which is provided on the side of the ice-making air duct front cover facing the ice-making air duct.

According to an embodiment of the present application, the ice-making air duct assembly further includes: an ice-making air duct rear cover plate, the ice-making air duct rear cover plate is connected to the ice-making air duct front cover plate, and the thermal insulation The ice-making air duct is formed between the ice-making air duct front cover and the ice-making air duct rear cover. The ice-making air duct is formed between the ice-making air duct rear cover and the side wall.

According to one embodiment of the present application, the ice-making air duct assembly further includes: a fan cover, an accommodation cavity is formed between the fan cover and the ice-making air duct rear cover,

The air duct system also includes: an ice-making fan, which is disposed in the accommodation cavity.

According to an embodiment of the present application, it also includes:

An air inlet duct and a return air duct, the air inlet duct and the return air duct are suitable for connecting the ice making air duct and the ice making chamber, the air inlet duct and the return air duct are both suitable for being located at The outer side of the refrigerated box bladder is connected to the refrigerated box bladder.

According to one embodiment of the present application, the air inlet duct includes: a first cover plate and a second cover plate that are snap-connected to each other. The first cover plate is adapted to extend along and connect to the outer wall of the refrigerator box. On the outer wall of the refrigerated box, the second cover is located on the side of the first cover away from the refrigerated box;

The return air duct includes: a third cover plate and a fourth cover plate that are snap-connected to each other. The third cover plate is adapted to extend along the outer wall of the refrigerator box and be connected to the outer wall of the refrigerator box. On the wall, the fourth cover is located on the side of the first cover away from the refrigerated box.

According to an embodiment of the present application, the refrigeration air duct cover is provided with a plurality of refrigeration air outlets corresponding to the positions of the first refrigeration air duct and the second refrigeration air duct, and the refrigeration air duct cover is also There is a refrigeration return air outlet, the refrigeration air outlet and the refrigeration return air outlet are both connected to the refrigeration room of the refrigeration equipment, and the refrigeration return air outlet is connected to the first refrigeration air duct and the second refrigeration air duct respectively, Form a refrigeration air circulation structure.

According to one embodiment of the present application, the bottom wall or top wall of the refrigerated box is provided with a refrigeration air duct air inlet and two refrigeration air duct return air outlets located on both sides of the refrigeration air duct air inlet;

The first refrigeration air duct and the second refrigeration air duct are connected with the air inlet of the refrigeration air duct; both sides of the refrigeration air duct cover correspond to the positions of the two return air outlets of the refrigeration air duct respectively. The refrigeration return air outlet is provided, and the two refrigeration return air outlets are adapted to communicate with the two refrigeration air duct return air outlets in one-to-one correspondence to form two refrigeration return air ducts.

The refrigeration equipment according to the second embodiment of the present application includes:

Refrigerator bladder, the refrigerator bladder is provided with a cold storage room and an ice making room;

Air duct system, the air duct system is the air duct system of any of the above-mentioned refrigeration equipment, the air duct system is provided on the refrigeration box, the refrigeration air duct is connected with the refrigeration room, the The ice making air duct is connected with the ice making chamber;

The refrigeration system includes a compressor, a condenser, a throttling device and an evaporator connected in sequence. The evaporator includes an ice-making evaporator and a system evaporator. The ice-making evaporator is located in the ice-making air duct and is used for For cooling the ice making compartment, the system evaporator is used for cooling the refrigerator compartment.

According to the refrigeration equipment of the embodiment of the present application, by arranging the above-mentioned air duct system, the occupation of the volume of the refrigerator compartment by the air duct is reduced, the cooling capacity in the refrigerator compartment is distributed more evenly, and the ice-making air duct corresponding to the side wall is increased. area, which is conducive to increasing the effective area of the ice-making evaporator located in the ice-making air duct, thereby more reasonably matching the heat load of the ice-making machine and the area of the ice-making evaporator, which is conducive to increasing the ice-making speed of the ice-making machine. , improve the frost holding capacity of the ice making evaporator, reduce the heating and defrosting frequency of the ice making evaporator, reduce energy consumption, and improve the surface quality of the ice cubes.

According to an embodiment of the present application, the ice-making chamber is located in the refrigerating chamber and at the upper part of the refrigerating chamber, and the air inlet pipe of the air duct system connects the upper part of the ice-making air duct and the ice-making chamber. At the top, the return air duct of the air duct system connects the lower part of the ice making air duct and the bottom of the ice making chamber.

According to an embodiment of the present application, it also includes:

Freezer tank, the freezer tank is provided with a freezing chamber;

The air duct system also includes: an ice-making air duct assembly and a system fan. The ice-making air duct assembly is disposed in the freezing box and forms a freezing air duct between the freezing air duct and the freezing air duct. The duct is connected with the freezing chamber, and the system evaporator and the system fan are arranged in the freezing air duct.

The above one or more technical solutions in the embodiments of the present application have at least one of the following technical effects:

Further, one end of the first refrigeration air duct and the second refrigeration air duct is connected to the air inlet of the refrigeration air duct, and the other end extends to the top or bottom wall of the refrigeration box, which can increase the size of the first refrigeration air duct and the second refrigeration air duct. The length of the refrigeration air duct is conducive to making the temperature distribution in the height direction of the refrigeration room more uniform.

Furthermore, by arranging a diverting air duct to divert the air entering the refrigeration room from the air inlet of the refrigeration air duct to the first refrigeration air duct and the second refrigeration air duct, the cold air in the first refrigeration air duct and the second refrigeration air duct can be The quantity distribution is more even. The air shunt from the air inlet of the refrigeration air duct is diverted to both sides of the refrigeration air duct to the first refrigeration air duct and the second refrigeration air duct, making the air flow in the refrigeration air supply duct smoother and improving refrigeration efficiency.

Further, by locating the air inlet duct and the air return duct outside the refrigerated box and connecting them to the refrigerated box, the air inlet duct and the return air duct can be avoided from occupying the space of the refrigerated room and the volume of the refrigerated room can be increased. .

Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.

Description of the drawings

In order to explain the embodiments of the present application or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only These are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting creative efforts.

Figure 1 is one of the front views of the refrigeration equipment provided by the embodiment of the present application;

Figure 2 is an exploded schematic diagram of the refrigeration equipment in Figure 1;

Figure 3 is a partial structural schematic diagram of the refrigeration equipment in Figure 1;

Figure 4 is an exploded schematic diagram of the refrigeration air duct cover and the refrigeration air duct rear cover in the air duct system provided by the embodiment of the present application;

Figure 5 is a schematic structural diagram of the rear cover of the refrigeration air duct in the air duct system provided by the embodiment of the present application;

Figure 6 is a cross-sectional view of the refrigeration equipment in Figure 1 at A-A;

Figure 7 is a partial enlarged view of part B circled in Figure 6;

Figure 8 is a partial enlarged view of part C circled in Figure 7;

Figure 9 is an exploded schematic diagram of the structure of the ice-making air duct assembly and the ice-making fan provided by the embodiment of the present application;

Figure 10 is a partial enlarged view of part A as circled in Figure 1;

Figure 11 is a schematic structural diagram of the refrigeration equipment in Figure 1 from another perspective;

Figure 12 is a schematic diagram of the connection relationship between the refrigeration air duct assembly, the ice making air duct assembly, the air inlet duct and the return air duct in the air duct system provided by the embodiment of the present application;

Figure 13 is a schematic diagram of the connection relationship between the refrigeration air duct assembly, ice making air duct assembly, air inlet duct and return air duct in Figure 12 from another perspective;

Figure 14 is the second front view of the refrigeration equipment provided by the embodiment of the present application;

Figure 15 is a schematic structural diagram of the refrigeration equipment in Figure 14 from another perspective;

Figure 16 is an exploded schematic diagram of the air inlet duct in the air duct system provided by the embodiment of the present application;

Figure 17 is an exploded schematic diagram of the return air duct in the air duct system provided by the embodiment of the present application;

Reference signs:

100. Refrigerator tank; 200. Freezer tank; 300. Support parts;

11. Refrigerator; 111. Side wall; 112. Top wall; 113. Bottom wall; 1131. Refrigeration air duct air inlet; 1132. Refrigeration air duct return air outlet; 12. Ice making room;

2. Refrigeration air duct assembly; 21. Refrigeration air duct cover; 211. Cover body; 212. Insulation board; 2121. Refrigeration air duct; 213. Refrigeration air outlet; 214. Refrigeration return air outlet; 215. Decorative panel; 22 , Refrigeration air duct rear cover; 221, diverting air duct; 222, first assembly surface; 223, second assembly surface; 224, inclined surface;

3. Ice making air duct assembly; 31. Ice making air duct front cover; 32. Insulation layer; 33. Ice making air duct rear cover; 331. Ice making air duct; 332. Limiting plate; 333. Air guide 334. Snap block; 335. Main board body; 336. Extension part; 3351. Inclined part; 1111. Inclined side wall; 1112. Flat plate part; 337. First connecting plate; 338. Second connecting plate; 339. Positioning buckle; 34. Fan cover; 341. Installation part; 342. Air inlet; 343. Air outlet;

4. Refrigeration air duct; 41. Refrigeration air supply duct; 411. First refrigeration air duct; 412. Second refrigeration air duct; 413. Split air duct; 4131. First air guide surface; 4132. Second air guide surface ;

5. Ice making air duct; 61. Ice making evaporator; 62. Ice making fan; 621. Connection lug; 71. Air inlet duct; 72. Return air duct; 711. First cover; 7111. First card buckle; 712, the second cover; 7121, the first slot; 721, the third cover; 7211, the second buckle; 722, the fourth cover; 7221, the second slot; 731, the first sealing rib ; 732. Second sealing rib; 741. First pillar; 742. Second pillar; 8. Refrigeration air duct assembly.

Detailed ways

The embodiments of the present application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the present application but cannot be used to limit the scope of the present application.

In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the figures. The orientation or positional relationship shown is only to facilitate the description of the embodiments of the present application and simplify the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application. Limitations of Application Examples. In addition, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance.

In the description of the embodiments of this application, it should be noted that, unless otherwise clearly stated and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. Or integrated connection; it can be directly connected or indirectly connected through an intermediary. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood in specific situations.

In the embodiments of this application, unless otherwise expressly provided and limited, the first feature "on" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in intermediate contact. Indirect media contact. Furthermore, the terms "above", "above" and "above" the first feature is above the second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "below" and "beneath" the first feature to the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature has a smaller horizontal height than the second feature.

This application proposes an air duct system for refrigeration equipment, as shown in Figures 1-3. The air duct system includes a refrigeration air duct assembly 2 and an ice making air duct assembly 3. Both the refrigeration air duct assembly 2 and the ice making air duct assembly 3 are suitable for being arranged in the refrigeration box 100 of the refrigeration equipment. The ice-making air duct assembly 3 includes an ice-making air duct front cover 31 . The ice-making air duct front cover 31 is adapted to form an ice-making air duct 5 between a part of the side wall 111 of the refrigerator box 100 . The ice-making air duct 5 is suitable for communicating with the ice-making chamber 12 in the refrigerator 100 to form an ice-making air circulation structure. The refrigeration air duct assembly 2 includes a refrigeration air duct cover 21, which is adapted to form a refrigeration air duct 4 between the refrigeration air duct cover 21 and another part of the side wall 111. The refrigeration air duct 4 includes a first refrigeration air duct 411 and a second refrigeration air duct 412 . The ice making air duct 5 is located between the first refrigeration air duct 411 and the second refrigeration air duct 412 .

Among them, the refrigeration air duct 4 and the ice making air duct 5 are both located in the refrigerator compartment 11 . The side wall 111 can be any side wall of the refrigerated box 100 . Optionally, the side wall 111 is a side wall opposite to the door body of the refrigeration equipment, that is, the rear side wall of the refrigeration box 100 .

It should be noted that the ice-making air duct 5 in the air duct system proposed in this application is suitable for being equipped with an ice-making evaporator 61 and an ice-making fan 62. The ice making room 12 is provided with an ice making machine. Under the action of the ice-making fan 62, the air flows through the ice-making evaporator 61, and the air after exchanging heat with the ice-making evaporator 61 flows into the ice-making machine. After heat exchange in the ice-making machine, it flows back to the ice-making air duct 5 and It exchanges heat with the ice-making evaporator 61 again, and this reciprocating cycle provides cooling capacity for the ice-making chamber. A separate ice-making evaporator 61 and an ice-making fan 62 are provided in the ice-making air duct 5 to provide cooling capacity for the ice-making chamber 12 alone. Since the ice making chamber 12 needs to maintain a low temperature for a long time, the ice making evaporator 61 can be operated at a high rate.

The air in the refrigeration air duct 4 and the air in the refrigerating compartment 11 perform heat exchange to achieve cooling of the refrigerating compartment 11. For example, the air in the refrigeration air duct 4 is cooled by heat conduction with the air in the refrigerator compartment 11 through the refrigeration air duct cover 21 , that is, the air is cooled by direct cooling. Alternatively, the refrigeration air duct cover 21 is provided with a refrigeration air outlet 213 and a refrigeration return air outlet 214 that communicate with the refrigeration compartment 11 to form a refrigeration air circulation structure, that is, refrigeration is performed by air cooling.

In the air duct system of the refrigeration equipment proposed in this application, the refrigeration air duct cover 21 is connected to a part of the side wall 111 to form the refrigeration air duct 4, and the ice making air duct front cover 31 is connected to another part of the side wall 111 to form a refrigeration equipment. The ice air duct 5 allows the ice making air duct 5 and the refrigeration air duct 4 to share one side wall 111 of the refrigerator gallbladder 100, which reduces the volume occupied by the air duct in the refrigerator compartment 11. By arranging the first refrigeration air duct 411 and the second refrigeration air duct 412 located on both sides of the ice-making air duct 5, the ice-making air duct 5 is located in the middle of the side wall 111 of the refrigerator box 100, and the first refrigeration air duct 411 and the second refrigeration air duct 412 are located on both sides of the ice making air duct 5 . Making the distribution of cooling capacity in the refrigerator compartment 11 more uniform can also increase the area of the ice-making air duct 5 corresponding to the side wall 111, which is beneficial to increasing the effective area of the ice-making evaporator 61 located in the ice-making air duct 5. , thereby more reasonably matching the heat load of the ice making machine and the area of the ice making evaporator 61, which is conducive to increasing the ice making speed of the ice making machine, improving the frost holding capacity of the ice making evaporator 61, and reducing the ice making evaporator 61. Heating and defrosting frequency reduces energy consumption and improves ice surface quality.

Furthermore, an ice-making air channel 331 is provided on the side of the ice-making air duct rear cover 33 facing the side wall 111. The ice-making air channel 5 is formed between the ice-making air channel 331 and the side wall 111, that is, the ice-making evaporator. 61 and the ice-making fan 62 are located in the ice-making air slot 331. Optionally, the ice-making fan 62 is connected to the ice-making air duct rear cover 33, and the ice-making evaporator 61 is connected to the refrigeration box 100, which facilitates the installation of the ice-making evaporator 61 and the ice-making fan 62. Of course, the ice making evaporator 61 and the ice making fan 62 can also be both installed on the refrigerator box 100, or both can be installed on the ice making air duct rear cover 33.

As shown in Figure 3, the ice-making air duct front cover 31 is embedded in the refrigeration air duct cover 21, that is, the refrigeration air duct cover 21 is adjacent to the ice-making air duct front cover 31, so that the refrigeration air duct can be 4 and the ice-making air duct 5 make full use of the area of the side wall 111 and increase the area of the ice-making air duct 5 corresponding to the side wall 111.

Optionally, the first refrigeration air duct 411 and the second refrigeration air duct 412 are arranged in a vertical direction, that is, they are respectively located in the left and right areas of the side wall 111 . Since the ice making air duct 5 is located between the two, it is beneficial to lengthen the size of the first refrigeration air duct 411 and the second refrigeration air duct 412 in the height direction of the refrigeration box 100, and increase the height of the refrigeration compartment 11 within the refrigeration box 100. Uniformity of temperature distribution in height direction.

With reference to Figure 2, Figure 3 and Figure 10, the bottom wall 113 of the refrigerated box 100 is provided with a refrigeration air duct air inlet 1131. One end of the first refrigeration air duct 411 and the second refrigeration air duct 412 is connected to the refrigeration air duct air inlet 1131. through, and the other end extends to the top wall 112. Alternatively, the refrigeration air duct air inlet 1131 can also be provided on the top wall 112 of the refrigeration box 100. One end of the first refrigeration air duct 411 and the second refrigeration air duct 412 is connected with the refrigeration air duct air inlet 1131, and the other end extends to Bottom wall 113. The top wall 112 is connected to the upper end of the side wall 111, the bottom wall 113 is connected to the lower end of the side wall 111, and the top wall 112 and the bottom wall 113 are arranged oppositely.

In this embodiment, by arranging the refrigeration air duct air inlet 1131 on the top wall 112 or the bottom wall 113, the air duct length of the first refrigeration air duct 411 and the second refrigeration air duct 412 can be increased, which is beneficial to making the refrigeration room 11 at a higher height. The temperature distribution in the direction is more uniform.

Among them, the refrigeration air duct air inlet 1131 is used to communicate with the heat exchange air duct on the outside of the refrigeration box 100, and transport cold energy to the refrigeration air duct through the outside heat exchange air duct. For example, a system heat exchange air duct is provided on the outside of the refrigerated box 100, and the system evaporator and system fan of the refrigeration equipment are located in the system heat exchange air duct. Under the action of the system fan, the air flows through the system evaporator. The air after the system evaporator enters the refrigeration air duct 4. After heat exchange in the refrigeration air duct 4, it flows back to the system heat exchange air duct for exchange with the system evaporator again. or continue to enter the refrigerating room 11, and then return to the system heat exchange air duct to exchange heat with the system evaporator again, so that the reciprocating cycle provides cooling capacity for the refrigerating room.

Further, as shown in Figure 3, the refrigeration air duct 4 also includes a split air duct 413. The first refrigeration air duct 411 and the second refrigeration air duct 412 are respectively connected to the refrigeration air duct air inlet 1131 through the split air duct 413. By arranging the split air duct 413 to divert the air entering the refrigeration room from the refrigeration air duct air inlet 1131 to the first refrigeration air duct 411 and the second refrigeration air duct 412, the first refrigeration air duct 411 and the second refrigeration air duct 412 can be The air volume distribution inside is more even.

Among them, the split air duct 413, the first refrigeration air duct 411 and the second refrigeration air duct 412 jointly form a refrigeration air supply duct. The refrigeration air supply duct extends from the bottom wall to the top wall of the refrigerator gallbladder 100, which can increase the area of the refrigeration air supply duct, improve the refrigeration efficiency of the refrigerator compartment 11 and the uniformity of temperature distribution of the refrigerator compartment 11 in the height direction of the refrigerator compartment 100. .

When the air inlet 1131 of the refrigeration air duct is provided on the bottom wall 113, the air inlet of the split air duct 413 is connected to the bottom wall 113 of the refrigeration box 100, and the first refrigeration air duct 411 and the second refrigeration air duct 412 are separated from the split air duct 113. The air outlet of the channel 413 extends to the top wall 112 of the refrigerated box 100 .

When the air inlet 1131 of the refrigeration air duct is provided on the top wall 112, the air inlet of the split air duct 413 is connected to the top wall 112 of the refrigeration box 100, and the first refrigeration air duct 411 and the second refrigeration air duct 412 are diverted from the split air duct. The air outlet of the channel 413 extends to the bottom wall 113 of the refrigerated box 100 .

Optionally, the refrigeration air duct cover 21 is provided with a plurality of refrigeration air outlets 213 in the height direction of the refrigeration box 100, so that the air outlet of the refrigeration air duct 4 in the height direction of the refrigeration box 100 is relatively uniform. As shown in FIG. 3 , the refrigeration air duct cover 21 is provided with two refrigeration air outlets 213 at positions corresponding to the first refrigeration air duct 411 , and two refrigeration air outlets 213 are provided at positions corresponding to the second refrigeration air duct 412 . The refrigeration air duct cover 21 is also provided with a refrigeration air outlet 213 at a position corresponding to the split air duct 413 .

It should be noted that the air duct system in some embodiments of the present application may not be provided with a split air duct 413. The first refrigeration air duct 411 and the second refrigeration air duct 412 jointly form a refrigeration air supply duct. The refrigeration box 100 is provided with two refrigeration air duct air inlets 1131. The first refrigeration air duct 411 is connected to one of the refrigeration air duct air inlets 1131, and the second refrigeration air duct 412 is connected to the other refrigeration air duct air inlet 1131. In this case, the first refrigeration air duct 411 and the second refrigeration air duct 412 can directly extend from the bottom wall to the top wall of the refrigeration box 100 .

As shown in Figures 2 and 4, the refrigeration air duct assembly 2 also includes a refrigeration air duct rear cover 22. The refrigeration air duct rear cover 22 is disposed between the refrigeration air duct cover 21 and the side wall 111. The rear refrigeration air duct is The cover 22 is provided with a diverting air groove 221, and the refrigeration air duct cover 21 is provided with a refrigeration air groove 2121. The refrigeration air duct rear cover 22 is buckled with the refrigeration air duct cover 21 to connect the diverting air groove 221 and the refrigeration air groove 2121. A split air channel 413 is defined therebetween.

Since the diverting air duct 413 is connected with the refrigeration air duct air inlet 1131, in this embodiment, by arranging the diverting air groove on the rear cover 22 of the refrigeration air duct, the air inlet of the diverting air duct 413 can be increased and the air inlet range can be expanded. It is helpful to control the pressure stability in the refrigeration air supply duct. Moreover, the air inlet matching the size of the air inlet 1131 of the refrigeration air duct can be formed through the structural settings of the refrigeration air duct cover 21 and the refrigeration air duct rear cover 22, thereby eliminating the dead air supply angle in the diverting air duct 413 and making the diverting air duct The air flow in 413 can be more smoothly diverted to the first refrigeration air duct 411 and the second refrigeration air duct 412, thereby improving refrigeration efficiency.

Referring to Figure 13, the split air duct 413 is provided with a first air guide surface 4131 and a second air guide surface 4132 that are opposite to each other. The first air guide surface 4131 extends obliquely from the refrigeration air duct air inlet 1131 to the first refrigeration air duct 411, and the second air guide surface 4132 extends obliquely from the refrigeration air duct air inlet 1131 to the second refrigeration air duct 412.

It can be understood that the first air guide surface 4131 and the second air guide surface 4132 are arranged at an angle, so that the width of the split air duct 413 in the direction from its air inlet to the air outlet gradually increases, so as to divert the air from the refrigeration air duct. The air from the air outlet 1131 is diverted to both sides of the first refrigeration air duct 411 and the second refrigeration air duct 412, making the air flow in the refrigeration air supply duct smoother and improving refrigeration efficiency.

The first air guide surface 4131 and the second air guide surface 4132 can be formed on the refrigeration air duct cover 21 or the refrigeration air duct rear cover 22, or can also be formed on the refrigeration air duct cover 21 and the refrigeration air duct rear cover 22. On the side wall of the split air duct 413 formed by snapping, part of the first air guide surface 4131 is located on the refrigeration air duct cover 21 and the other part is located on the refrigeration air duct rear cover 22; part of the second air guide surface 4132 is located on The other part of the refrigeration air duct cover 21 is located at the rear cover 22 of the refrigeration air duct.

Specifically, the side of the refrigeration air duct rear cover 22 facing the refrigeration air duct cover 21 is provided with a diverting air slot 221, and the side of the refrigeration air duct cover 21 facing the refrigeration air duct rear cover 22 is provided with a refrigeration air slot 2121. . The refrigeration air duct rear cover 22 and the refrigeration air duct cover 21 are fastened together, and a diverting air duct 413 is formed between the diverting air duct 221 and the refrigeration air duct 2121 . Among them, the groove walls of the diverting air duct 221 located on both sides of the diverting air duct 413 are connected in a one-to-one correspondence with the groove walls of the refrigerated air duct 2121 located on both sides of the diverting air duct 413, forming a first air guide surface 4131 and a second air guide surface 4132. .

Optionally, the refrigeration air duct rear cover 22 is provided with a positioning groove on one side facing the refrigeration air duct cover 21, and the refrigeration air duct cover 21 is provided with a positioning boss on one side facing the refrigeration air duct rear cover 22. When the air duct rear cover 22 and the refrigeration air duct cover 21 are fastened together, the positioning groove and the positioning boss match.

Optionally, as shown in FIG. 5 , the side of the refrigeration air duct rear cover 22 facing away from the refrigeration air duct cover 21 is sealingly connected to the side wall 111 of the refrigeration box 100 . The side of the refrigeration air duct rear cover 22 away from the refrigeration air duct cover 21 is provided with a first assembly surface 222 and a second assembly surface 223 . The first assembly surface 222 and the second assembly surface 223 are connected by an inclined surface 224 .

Correspondingly, a groove matching the shape of the refrigeration air duct rear cover 22 is formed on the side wall 111, and the first assembly surface 222 is sealingly connected to the bottom plane of the groove. The side wall 111 is provided with a flat portion connected to the notch of the groove, and the second assembly surface 223 is connected to the flat portion in a plane seal. The refrigeration air duct rear cover 22 and the refrigeration box bladder 100 can maintain a plane sealing assembly, that is, plane sealing is forced. The force on the sealing surface of the refrigeration air duct assembly and the refrigeration box bladder 100 is made more uniform, and there is no gap in the plane fit, which prevents the cold air in the refrigeration air duct 4 from leaking out, making the temperature of the refrigeration compartment more uniform and the temperature difference smaller.

As shown in Figures 2 and 4, the refrigeration air duct cover 21 includes a cover body 211 and a refrigeration air duct insulation plate 212. The refrigeration air duct insulation plate 212 is provided on the side of the cover body 211 facing the refrigeration air duct 4. The first refrigeration air duct 411 and the second refrigeration air duct 412 are formed between the refrigeration air duct insulation plate 212 and the side wall 111. The refrigeration air duct insulation board 212 plays a role in insulating the refrigeration air supply duct and can reduce the cooling loss of the air in the refrigeration air supply duct. The insulation board 212 may be insulation foam. Optionally, the cover body 211 covers the refrigeration air duct 4 and the ice making air duct 5 , that is, the refrigeration air duct 4 and the ice making air duct 5 are located between the cover body 211 and the side wall 111 .

In the above embodiment, the split air duct 413 is formed between the refrigeration air duct insulation plate 212 and the refrigeration air duct rear cover 22 , and the refrigeration air groove 2121 is provided on the refrigeration air duct insulation plate 212 . The first refrigeration air duct 411, the second refrigeration air duct 412 and the diverting air duct 413 are formed between the refrigeration air duct 2121 and the side wall 111. The refrigeration air outlet 213 penetrates the cover body 211 and the refrigeration air duct insulation plate 212.

Specifically, the insulation board 212 includes a first board, a second board and a third board connecting the first board and the second board. A first refrigeration air duct 411 is formed between the first board and the side wall 111 , a second refrigeration air channel 412 is formed between the second plate body and the side wall 111 . A split air duct 413 is formed between the third plate body and the side wall 111 or the refrigeration air duct rear cover 22 .

Optionally, as shown in FIG. 2 , the refrigeration air duct cover 21 further includes a decorative plate 215 , and the decorative plate 215 is provided on the side of the refrigeration air duct cover 21 away from the refrigeration air duct 4 . The refrigeration air outlet 213 penetrates the decorative panel 215, the cover body 211 and the insulation panel 212.

Referring to Figures 2, 6-8, the ice-making air duct assembly 3 also includes an insulation layer 32. The insulation layer 32 is provided on the side of the ice-making air duct front cover 31 facing the ice-making air duct 5. The insulation layer 32 plays a role in insulating the ice-making air duct 5, which can prevent the cold energy in the ice-making air duct 5 from being transferred to the refrigerating chamber 11, reduce the cold energy loss in the ice-making air duct 5, and improve the ice-making efficiency. The thermal insulation layer 32 may be thermal insulation foam fixedly connected to the ice making air duct front cover 31 .

Further, as shown in Figures 2, 7 and 8, the ice-making air duct assembly 3 also includes an ice-making air duct rear cover 33. The ice-making air duct rear cover 33 is connected to the ice-making air duct front cover 31, and the insulation layer 32 is provided between the ice-making air duct front cover 31 and the ice-making air duct rear cover 33. The ice-making air duct rear cover An ice making air channel 5 is formed between the plate 33 and the side wall 111 .

In this embodiment, the ice-making air duct rear cover 33 is provided, and the insulation layer 32 is provided between the ice-making air duct rear cover 33 and the ice-making air duct front cover 31 . When the insulation layer 32 is a vacuum insulation panel (Vacuum Insulation Panel, VIP panel), the installation and fixation of the VIP panel can be facilitated. Alternatively, a foaming cavity is formed between the ice-making air duct rear cover 33 and the ice-making air duct front cover 31 , and the foaming cavity is filled with foaming material to form the thermal insulation layer 32 .

As shown in FIG. 9 , the air duct system provided by the present application also includes a fan cover 34 , and an accommodation cavity for the ice making fan 62 is formed between the fan cover 34 and the ice making air duct rear cover 33 . The air duct system also includes an ice-making fan 62, which is disposed in the accommodation cavity.

In this embodiment, by integrating the ice-making fan 62 and the fan cover 34 on the ice-making air duct rear cover 33, the structural base can be effectively reduced, the installation space can be saved, and the volume of the refrigerator compartment 11 can be increased. The ice-making fan 62 and the ice-making air duct rear cover 33 can also be disassembled as a whole by disassembling the ice-making air duct rear cover 33, which facilitates the installation, maintenance and replacement of the ice-making fan 62 and the ice-making air duct rear cover 33.

Specifically, the fan cover 34 and the ice making air duct rear cover 33 are detachably connected through a snap-on component. The clamping component includes a clamping block 334 provided on the ice making air duct rear cover 33 and a clamping slot provided on the fan cover 34 that cooperates with the clamping block 334 to achieve clamping.

The fan cover 34 and the ice making air duct rear cover 33 can also be detachably connected through fasteners (such as screws). Alternatively, the fan cover 34 and the ice-making air duct rear cover 33 are partially detachably connected through clamping components and partially detachably connected through fasteners. The connection form between the fan cover 34 and the ice making air duct rear cover 33 can be selected according to actual usage conditions and is not specifically limited.

As shown in FIG. 9 , the fan cover 34 is provided with a plurality of mutually independent mounting parts 341 along the circumferential direction. The above-described engaging grooves can be provided on the mounting parts 341 . By arranging multiple mutually independent mounting parts 341 in the circumferential direction of the fan cover 34 The mounting portion 341 distributes the snap-in slots around the fan cover 34 to evenly bear the load and avoid deformation of the local structure to affect the snap-in slot connections in other areas, making the fan cover 34 more reliable after installation.

As shown in FIGS. 2 and 9 , the ice-making air duct rear cover 33 includes a back plate and a plurality of side plates. The plurality of side plates are arranged on the ice-making air duct rear cover 33 along the circumferential direction of the back plate. The side plates and the back plate limit an ice-making air channel 331, and the ice-making fan 62 is disposed in the ice-making air channel 331. Among them, the back panel and multiple side panels can be integrally formed, and the ice making fan 62 is installed on the back panel.

Further, a limiting plate 332 is provided on the back plate. The limiting plate 332 is connected between two adjacent side plates and forms a certain angle with each side plate. That is, it is equivalent to the limiting plate 332 being inclined at Between two adjacent side plates, the limiting plate 332 and the two adjacent side plates form three-sided limiting for the fan cover 34, thereby effectively preventing the fan cover 34 from moving during the operation of the ice making fan 62.

Optionally, a positioning component is provided between the fan cover 34 and the ice making air duct rear cover 33 . Since the clamping accuracy of the fan cover 34 and the ice-making air duct rear cover 33 is low, the assembly size and assembly accuracy between the fan cover 34 and the ice-making air duct rear cover 33 can be ensured by providing positioning components.

The positioning component may include a positioning block provided on the fan cover 34, and a positioning buckle 339 provided on the ice making air duct rear cover 33 and matched with the positioning block to achieve positioning. Positioning components of appropriate height can provide guidance for the assembly process and improve assembly efficiency. The positioning component can effectively prevent the above-mentioned snap-in components from being damaged due to rough assembly movements.

The ice-making fan 62 is provided with a connecting lug 621. Correspondingly, the ice-making air duct rear cover 33 is provided with a connecting post that cooperates with the connecting lug 621. The connecting column is provided with an internally threaded hole, and a screw can be passed through the connecting hole on the connecting lug 621 and the internally threaded hole on the connecting column to connect the ice making fan 62 to the connecting column. The screw limits the freedom of the ice-making fan 62 to move upward along the direction of the connecting column, and also limits the freedom of the ice-making fan 62 to move in a plane.

As shown in Figure 9, the fan cover 34 includes an air inlet 342 and an air outlet 343. The air inlet 342 is provided on the cover body of the fan cover 34 opposite to the ice making air duct rear cover 33, and the air outlet 343 is provided on the fan cover 34. On the side, the air outlet 343 is connected to the air inlet pipe 71 , so that the ice-making fan 62 takes in air from the air inlet 342 and sends it into the ice-making chamber 12 from the air outlet 343 .

Among them, the air outlet 343 is set at an angle, which is equivalent to increasing the air outlet area, thereby increasing the air supply volume; at the same time, the air outlet 343 is set at an angle to facilitate the connection of the air inlet pipeline, so that the air inlet pipeline is set close to the ice machine , to effectively reduce the structural volume of the ice machine.

As shown in Figure 9, an air guide portion 333 is provided on the ice making air duct rear cover 33 at a position corresponding to the outlet air. The air guide portion 333 is arranged in an inclined shape, thus ensuring that the air flow fully enters the air inlet channel and shortening the air flow. into the path to avoid airflow loss.

As shown in Figures 6, 7 and 8, the ice making air duct rear cover 33 includes a main plate body 335 and an extension part 336. The main plate body 335 includes an inclined part 3351, and the inclined part 3351 is adapted to connect with the inclined side of the refrigerator box 100. Wall 1111 fits. The extension portion 336 is connected to the edge of the inclined portion 3351 and is adapted to cooperate with the flat portion 1112 of the refrigerator box 100 connected to the inclined side wall 1111 .

Optionally, the refrigerator box 100 is configured with a groove, and the main plate body 335 is bent to form an ice-making air channel 331, and the ice-making air duct rear cover 33 is integrally engaged with the groove, so that the ice-making air channel 331 is formed. 331 and the groove together form the ice making air duct 5 . Since the ice making air duct 5 is connected to the return air duct 72, corresponding return air holes should be provided at the position where the refrigerator tank 100 is connected to the return air duct 72.

In the actual manufacturing process, the position of the return air hole needs to be designed with an inclined structure to achieve the punching process. Therefore, in order to cooperate with the punching process, the side wall extending along the length direction of the groove is set as an inclined side wall 1111, and is formed by a concave The inner side of the groove gradually slopes toward the outer side. The main plate body 335 is provided with an inclined portion 3351 matching the inclined side wall 1111 at a position corresponding to the inclined side wall 1111. The inclined side wall 1111 extends outwardly from the notch of the groove to form the flat plate portion 1112 of the refrigerated box 100. The ice duct rear cover 33 is provided with an extension portion 336 matching the flat portion 1112 at a position corresponding to the flat portion 1112 .

In this application, by arranging the extension 336 of the ice-making air duct rear cover 33, the ice-making air duct assembly 3 and the refrigerator box 100 are forced to adopt a flat surface on the sealing assembly surface. seal. On the basis of the inclined surface assembly of the inclined side wall 1111 and the inclined part 3351, the assembly structure of the flat part 1112 and the extension part 336 is designed to make the sealing surface of the ice making air duct assembly 3 and the refrigerator box 100 more evenly stressed and have a flat surface. There will be no gap, which solves the problem of cold air leakage in the ice-making air duct 5 due to the slope fit and poor sealing surface contact between the ice-making air duct rear cover 33 and the refrigerator tank 100. While improving the structure, It can effectively prevent the cold air from the ice making air duct 5 from leaking out, making the temperature in the refrigerator compartment more uniform and the temperature difference smaller.

The extension part 336 and the refrigerated box bladder 100 may be connected by plugging, snapping, thread fastening, or other methods. The connection at the plane matching part can ensure the structural strength and uniform force of the connection between the ice-making air duct rear cover 33 and the refrigeration box 100.

Further, the ice-making air duct rear cover 33 also includes a first connecting plate 337. One side of the first connecting plate 337 is connected to the extension portion 336, and the other side extends toward the direction of the ice-making air duct front cover 31. And connected with the ice making air duct front cover 31. The ice making air duct rear cover 33 also includes a second connecting plate 338 opposite to the first connecting plate 337. One side of the second connecting plate 338 is connected to the main plate body 335, and the other side is connected to the ice making air duct front cover. The plate 31 is connected with the front cover 31 of the ice making air duct.

It can be understood that the second connecting plate 338 , the main plate body 335 , the extension part 336 and the first connecting plate 337 can all be integrally formed by bending and stamping the entire ice making air duct rear cover 33 , or they can be separate plate bodies. Solder the connections in sequence.

Further, a sealing member is provided between the extension portion 336 and the flat portion 1112 . Under the condition that the extension part 336 and the flat part 1112 are assembled in a plane, it is more conducive to the installation of a seal. Compared with the sealing effect of affixing a seal between the inclined part 3351 and the inclined side wall 1111, the extension part 3351 and the inclined side wall 1111 have a sealing effect. The flat assembly between 336 and the flat part 1112 ensures good contact between the sealing surface, making the seal easier to install and further improving the sealing effect. Optionally, the sealing member can use sealing sponge, sealing strip and other components.

As shown in Figures 11, 12 and 13, the air duct system proposed in this application also includes an air inlet duct 71 and a return air duct 72. The air inlet duct 71 and the return air duct 72 are suitable for connecting the ice making air duct 5 and the ice making machine. Ice room 12. The ice-making fan 62 drives the air flowing through the ice-making evaporator 61 to flow into the ice-making chamber 12 from the air inlet duct 71 and then flows back to the ice-making air duct 5 from the return air duct 72 . Optionally, both the air inlet duct 71 and the return air duct 72 are suitable to be located outside the refrigerated box 100 and connected to the refrigerated box 100 to prevent the air inlet duct 71 and the return air duct 72 from occupying the space of the refrigerator compartment 11 , increasing the volume of the refrigerator compartment 11.

Optionally, the air outlet side of the ice making fan 62 is opposite to the air inlet end of the air inlet duct 71 , and the air inlet side of the ice making evaporator 61 is opposite to the air outlet end of the return air duct 72 . In this way, the structure of the ice making air duct 5 can be made compact, the cooling capacity loss can be reduced, and the ice making efficiency can be improved.

As shown in Figure 16, the air inlet duct 71 includes a first cover plate 711 and a second cover plate 712 that are snap-connected to each other. The first cover plate 711 is adapted to extend along the outer wall of the refrigerator box 100 and is connected to the refrigerator box box. On the outer wall of the refrigerator 100 , the second cover 712 is located on the side of the first cover 711 away from the refrigerated box 100 .

Specifically, the first cover 711 is configured with a first buckle 7111, and the second cover 712 is configured with a first buckle 7121 that matches the buckle direction. The first cover 711 passes through the first buckle 7111 and the first buckle 7121. The card slot 7121 is detachably connected to the second cover 712 . When the first cover 711 and the second cover 712 are connected, the first buckle 7111 extends to the first buckle 7121. Optionally, the first cover 711 is provided with a plurality of first buckles 7111 spaced apart from each other, and the second cover 712 is configured with first slots 7121 that match the first buckles 7111 in one-to-one correspondence. Of course, the first buckle 7111 can also be provided on the second cover 712 , and the corresponding first slot 7121 can be provided on the first cover 711 .

The first cover plate 711 and the second cover plate 712 are interlocked to form the air inlet duct 71 . The first cover 711 is provided with two air outlets, and the two air outlets are connected to the ice making air duct 5 and the ice making chamber 12 respectively. By only providing the air inlet on the first cover 711 , the structures of the air inlet duct 71 and the return air duct 72 can be simplified. Of course, two air outlets for communicating with the ice making chamber 12 and the ice making air duct 5 can also be provided on the second cover plate 712 or on both the first cover plate 711 and the second cover plate 712 .

Further, in order to ensure the sealing of the connection between the first cover plate 711 and the second cover plate 712, a first sealing rib 731 can be provided at the edge of the first cover plate 711 for fastening with the second cover plate 712, or at the edge of the first cover plate 711 for fastening with the second cover plate 712. The first sealing rib 731 is provided on the edge of the second cover plate 712 for fastening with the first cover plate 711, or at the same time, the first sealing rib 731 is provided on the edge of the first cover plate 711 for fastening with the second cover plate 712 and the second cover plate 712. A first sealing rib 731 is provided at the edge that is fastened with the first cover 711 . The first sealing rib 731 can form a sealed cavity in the air inlet duct 71 and the return air duct 72 to prevent the foaming liquid from entering the air inlet duct 71 and the return air duct 72 during the foaming process, and can also prevent the cold air from leaking out during the refrigeration process. Reduce cooling loss.

As shown in Figure 17, the return duct 72 includes a third cover plate 721 and a fourth cover plate 722 that are snap-connected to each other. The third cover plate 721 is adapted to extend along the outer wall of the refrigerated box 100 and is connected to the refrigerated box liner. On the outer wall of the refrigerator 100 , the fourth cover 722 is adapted to be located on the side of the third cover 721 away from the refrigerated box 100 . The third cover plate 721 and the fourth cover plate 722 are installed in the same manner as the first cover plate 711 and the second cover plate 712 . One of the third cover 721 and the fourth cover 722 is provided with a second buckle 7211, and the other is provided with a second groove 7221.

Further, correspondingly, the third cover plate 721 is provided with a second sealing rib 732, and the second sealing rib 732 is arranged on the third cover plate 721 in the same manner as the first sealing rib 731 is arranged on the first cover plate 711. The method is the same and will not be repeated here.

Optionally, the outer wall surface of the refrigerator box 100 is configured with a third sealing rib, and the third sealing rib on the outer wall surface of the refrigerator box 100 extends along the edge of the first cover plate 711 and/or the third cover plate 721 . The position of the third sealing rib can be set as needed. For example, the sealing rib can extend along one side edge of the first cover plate 711 or the entire circumferential edge of the first cover plate 711 to achieve sealing of different locations on the first cover plate 711 .

Among them, according to the height and position of the third sealing rib, the third sealing rib can be used to block the first cover plate 711 on the one hand, and can also be used to seal between the first cover plate 711 and the refrigerator liner 100 to prevent the occurrence of fire. When foaming, the foaming liquid enters the air inlet duct 71 or the return air duct 72.

As shown in Figures 2, 3 and 4, the refrigeration air duct cover 21 is provided with a plurality of refrigeration air outlets 213 at positions corresponding to the first refrigeration air duct 411 and the second refrigeration air duct 412. The refrigeration air duct cover 21 A refrigeration return air outlet 214 is also provided. The refrigeration air outlet 213 and the refrigeration return air outlet 214 are both connected to the refrigeration room of the refrigeration equipment. The refrigeration return air outlet 214 is connected to the first refrigeration air duct 411 and the second refrigeration air duct 412 respectively, forming a refrigeration air circulation structure.

Specifically, the refrigeration air duct cover 21 is also provided with a refrigeration return air outlet 214, which communicates with the refrigeration room 11 and the refrigeration return air duct. A refrigeration return air duct is formed between the refrigeration return air outlet 214 and the refrigeration air duct return air outlet 1132 .

The refrigeration return air duct and the refrigeration air supply duct 41 can be connected through the system heat exchange air duct, and the system heat exchange air duct is equipped with a system evaporator and a system fan. The system fan drives the air flowing through the system evaporator to enter the refrigeration air supply duct 41, and then enters the refrigeration room 11 through multiple refrigeration air outlets 213. After heat exchange, it flows back from the refrigeration return air outlet 214 to the refrigeration return air duct, and then flows back to the system exchanger. The hot air duct exchanges heat with the system heat exchanger again, and this reciprocating cycle provides cooling capacity for the cold storage room.

As shown in FIG. 10 , the bottom wall 113 or the top wall 112 of the refrigeration box 100 is provided with a refrigeration air duct air inlet 1131 and two refrigeration air duct return air outlets 1132 located on both sides of the refrigeration air duct air inlet 1131 . The first refrigeration air duct 411 and the second refrigeration air duct 412 are respectively connected with the refrigeration air duct air inlet 1131. Wherein, when the split air duct 413 is provided, the first refrigeration air duct 411 and the second refrigeration air duct 412 are respectively connected with the refrigeration air duct air inlet 1131 through the split air duct 413.

As shown in Figures 2, 3 and 4, refrigeration return air outlets 214 are respectively provided on both sides of the refrigeration air duct cover 21 at positions corresponding to the two refrigeration air duct return air openings 1132. The two refrigeration return air inlets 214 are adapted to communicate with the two refrigeration air duct return air inlets 1132 in one-to-one correspondence to form two refrigeration return air ducts. That is, the two refrigeration return air ducts are located on both sides of the refrigeration air supply duct 41 . Optionally, the refrigeration return air outlet 214 is provided with a grille structure.

Specifically, the refrigeration air duct cover 21 includes a first plate body and two second plate bodies connected to both ends of the first plate body. The second plate body is connected to the side of the first plate body close to the side wall 111, so that the second plate body is connected to the side wall 111 of the first plate body. One plate body and two second plate bodies form a receiving space, and the refrigeration air duct air inlet 1131 is located in the cover receiving space. The refrigeration air duct 2121 is provided on the first plate body, and the refrigeration air duct return air openings 1132 are provided on both second plate bodies.

The refrigerated box 100 also includes two other side walls adjacent to the side wall 111. When the refrigerated air duct cover 21 is installed on the refrigerated box 100, the two refrigerated air duct return air outlets 1132 are respectively connected to the other two side walls. relatively. The refrigeration air is blown into the refrigerating chamber 11 from the upper middle area, and then flows back from the lower areas on both sides, making the temperature distribution in the refrigerating room 11 more uniform.

This application also proposes a refrigeration equipment, which can be a refrigerator, an ice bar, a freezer, a wine cabinet, a refrigeration cabinet, and other refrigeration equipment. The refrigeration equipment includes a refrigeration box 100, an air duct system and a refrigeration system. The refrigerated box 100 is provided with a refrigerating chamber 11 and an ice making room 12. The air duct system is the air duct system described in any of the above embodiments. The air duct system is provided on the refrigerated box 100. The refrigeration air duct 4 is connected with the refrigeration chamber 100. The chamber 11 is connected, and the ice making air duct 5 is connected with the ice making chamber 12. The refrigeration system includes a compressor, condenser, throttling device and evaporator connected in sequence. The evaporator includes an ice-making evaporator 61 and a system evaporator (not shown in the figure). As shown in Figure 13, the ice-making evaporator 61 is provided in the ice-making air duct 5 and is used to cool the ice-making chamber 12. , the system evaporator is used to cool the refrigerator compartment 11.

In the refrigeration equipment proposed in the embodiment of the present application, the refrigeration air duct 4 is formed by connecting the refrigeration air duct cover 21 to a part of the side wall 111, and the ice making air duct front cover 31 is connected to another part of the side wall 111 to form ice making air. duct 5, so that the ice-making air duct 5 and the refrigeration air duct 4 share one side wall 111 of the refrigerator box 100, which reduces the volume occupied by the air duct in the refrigerator compartment 11. By arranging the first refrigeration air duct 411 and the second refrigeration air duct 412 located on both sides of the ice-making air duct 5, the ice-making air duct 5 is located in the middle of the side wall 111 of the refrigerator box 100, and the first refrigeration air duct 411 and the second refrigeration air duct 412 are located on both sides of the ice making air duct 5 . Making the distribution of cooling capacity in the refrigerator compartment 11 more uniform can also increase the area of the ice-making air duct 5 corresponding to the side wall 111, which is beneficial to increasing the effective area of the ice-making evaporator 61 located in the ice-making air duct 5. , thereby more reasonably matching the heat load of the ice making machine and the area of the ice making evaporator 61, which is conducive to increasing the ice making speed of the ice making machine, improving the frost holding capacity of the ice making evaporator 61, and reducing the ice making evaporator 61. Heating and defrosting frequency reduces energy consumption and improves ice surface quality.

Among them, when the ice-making air duct assembly 3 is not provided with the insulation layer 32, the ice-making air duct 5 can conduct heat exchange with the refrigerating chamber 11 to supplement the cooling capacity of the refrigerating chamber 11.

Optionally, the ice making chamber 12 is located in the refrigerating chamber 11 and at an upper part of the refrigerating chamber 11 . The air inlet duct 71 connects the upper part of the ice-making air duct 5 and the top of the ice-making chamber 12, and the return air duct 72 connects the lower part of the ice-making air duct 5 and the bottom of the ice-making chamber 12. In this way, the length of the air duct between the ice making chamber 12 and the ice making air duct 5 can be reduced, so that the cold energy of the ice making evaporator 61 can be transported to the ice making chamber 12 for ice making through a shorter inlet circuit, effectively reducing the cold Reduce the loss in the air duct and improve ice making efficiency. And the air inlet duct can blow the cold air into the ice making chamber from the top of the ice making chamber 12, flow from the top to the bottom of the ice making chamber, and then flow back from the return air duct to the ice making air duct 5, which is beneficial to shortening the ice making time. Increase ice production.

Further, as shown in Figures 14 and 15, the refrigeration equipment also includes a freezer box 200, and a freezing chamber is provided in the freezer box 200. The air duct system also includes a refrigeration air duct assembly 8 and a system fan. The freezing air duct assembly 8 is disposed in the freezing box 200 and forms a freezing air duct between the freezing box 200 and the freezing box 200 . The freezing air duct is connected with the freezing chamber, and the system evaporator and system fan are located in the freezing air duct. The refrigeration air duct serves as the system heat exchange air duct of the refrigeration equipment described in the above embodiment.

Wherein, the refrigerator tank 100 is located above the freezer tank 200, or the refrigerator tank 100 is located below the freezer tank 200. The side of the refrigerator tank 100 close to the freezer tank 200 is provided with a refrigeration air duct air inlet 1131 and a refrigeration air duct return air outlet 1132 that are connected to the freezing air duct.

Further, the refrigerator tank 100 is provided with a support member 300 , and the refrigerator tank 100 is connected to the freezer tank 200 through the support member 300 . The support 300 is provided with an air inlet duct and a return air duct. The air inlet duct is connected to the air inlet 1131 of the refrigeration air duct, and the return air duct is connected to the return air outlet 1132 of the refrigeration air duct. Optionally, the support member 300 is snap-connected to the refrigerator tank 100 and the freezer tank 200 . For example, buckles are provided on the outer walls of the refrigerator tank 100 and the freezer tank 200, and the support member 300 is provided with slots that cooperate with the buckles.

Optionally, the bottom wall 113 of the refrigerated box 100 is provided with a through hole, and the support member 300 is provided at the through hole. The air outlet of the air inlet duct of the support member 300 serves as the refrigeration air duct air inlet 1131, and the air inlet of the return air duct serves as the refrigeration air duct return air outlet 1132.

It should be noted that the refrigeration equipment includes a compressor, a condenser, a throttling device and an evaporator. The compressor, condenser, throttling device and evaporator are connected in sequence to form a refrigerant circulation path. The evaporator includes the ice making evaporator 61 and the system evaporator in the above embodiment. The condenser communicates with the ice making evaporator 61 through the first throttling device, and the condenser communicates with the system evaporator through the second throttling device.

Further, the refrigeration equipment also includes a box shell. A foam layer is provided between the box shell and the refrigerated box 100. The air inlet duct 71 and the return air duct 72 of the air duct system are embedded in the foam layer. The foam layer plays a role in insulating the air inlet duct 71 and the return air duct 72, which is beneficial to reducing the volume of the air inlet duct 71 and the return air duct 72, and reducing the impact of the air inlet duct 71 and the return air duct 72 on the box space. occupied.

Among them, the air inlet duct 71 and the return air duct 72 are only snap-connected to the refrigerated box bladder 100 . As shown in Figures 16 and 17, in order to ensure the stability of the air inlet duct 71 and the return air duct 72 during operation, the air inlet duct 71 is connected to a first pillar 741, and the return air duct 72 is connected to a second pillar 742. . The end of the first pillar 741 away from the air inlet duct 71 conflicts with the box shell, and the end of the second pillar 742 away from the return air duct 72 conflicts with the box shell. The first pillar 741 is supported between the air inlet duct 71 and the box shell to ensure the stability of the air inlet duct 71 and the return air duct 72 . The second pillar 742 is supported between the return air duct 72 and the box shell to ensure the stability of the return air duct 72 . The air inlet duct 71 and the return air duct 72 are pressed against the refrigerated box bladder 100 by squeezing the pillars of the box shell, thereby achieving the fixing and sealing of the air inlet duct 71 and the return air duct 72 without the need for screws and tape, thereby reducing materials The use improves product manufacturability and reduces costs.

Finally, it should be noted that the above embodiments are only used to illustrate the present application, but not to limit the present application. Although the present application has been described in detail with reference to the embodiments, those of ordinary skill in the art will understand that various combinations, modifications or equivalent substitutions of the technical solutions of the present application may be made without departing from the spirit and scope of the technical solutions of the present application and shall all be covered. within the scope of the claims of this application.

Claims (16)

1. An air duct system for refrigeration equipment, which is characterized by including:

   The ice-making air duct assembly is suitable for being arranged in a refrigeration box of a refrigeration equipment, and includes an ice-making air duct front cover. The ice-making air duct front cover is adapted to be connected with a part of the side wall of the refrigeration box. An ice-making air duct is formed therebetween, and the ice-making air duct is suitable for communicating with the ice-making chamber in the refrigerator to form an ice-making air circulation structure;

   The refrigeration air duct assembly is suitable for being disposed in the refrigeration box, and includes a refrigeration air duct cover. The refrigeration air duct cover is adapted to form a refrigeration air duct between the other part of the side wall, and the The refrigeration air duct includes a first refrigeration air duct and a second refrigeration air duct, and the ice making air duct is located between the first refrigeration air duct and the second refrigeration air duct.
2. The air duct system of refrigeration equipment according to claim 1, characterized in that the top wall or bottom wall of the refrigeration box is provided with a refrigeration air duct air inlet, the first refrigeration air duct and the second refrigeration air duct are One end of the air duct is connected to the air inlet of the refrigeration air duct, and the other end extends to the top wall or the bottom wall.
3. The air duct system of the refrigeration equipment according to claim 2, wherein the refrigeration air duct further includes: a split air duct, and the first refrigeration air duct and the second refrigeration air duct pass through the split air duct respectively. The air duct is connected with the air inlet of the refrigeration air duct.
4. The air duct system of refrigeration equipment according to claim 3, characterized in that the refrigeration air duct assembly further includes: a refrigeration air duct rear cover plate, the refrigeration air duct rear cover plate is provided with a diverting air groove, and the The refrigeration air duct cover is provided with a refrigeration air duct, and the refrigeration air duct rear cover is buckled with the refrigeration air duct cover to define the split air duct between the refrigeration air duct and the refrigeration air duct. road.
5. The air duct system of refrigeration equipment according to claim 3, characterized in that the split air duct is provided with a first air guide surface and a second air guide surface opposite to each other, and the first air guide surface is connected from the refrigeration equipment to the air duct. The air duct air inlet extends obliquely toward the first refrigeration air duct, and the second air guide surface extends obliquely from the refrigeration air duct air inlet toward the second refrigeration air duct.
6. The air duct system of refrigeration equipment according to claim 1, characterized in that the refrigeration air duct cover plate includes: a cover body and a refrigeration air duct insulation plate, and the refrigeration air duct insulation plate is provided on the cover plate The side of the body faces the refrigeration air duct, and the first refrigeration air duct and the second refrigeration air duct are formed between the refrigeration air duct insulation board and the side wall.
7. The air duct system of the refrigeration equipment according to any one of claims 1 to 6, characterized in that the ice making air duct front cover is embedded in the refrigeration air duct cover.
8. The air duct system of refrigeration equipment according to any one of claims 1 to 6, characterized in that the ice making air duct assembly further includes: an insulation layer, and the insulation layer is provided in front of the ice making air duct. The cover faces the side of the ice making air duct.
9. The air duct system of the refrigeration equipment according to claim 8, characterized in that the ice making air duct assembly further includes: an ice making air duct rear cover plate, the ice making air duct rear cover plate and the ice making air duct rear cover plate are connected to the ice making air duct rear cover plate. The air duct front cover is connected, and the insulation layer is provided between the ice-making air duct front cover and the ice-making air duct rear cover, between the ice-making air duct rear cover and the side wall. The ice making air duct is formed between them.
10. The air duct system of the refrigeration equipment according to claim 9, characterized in that the ice making air duct assembly further includes: a fan cover, and an accommodation is formed between the fan cover and the ice making air duct rear cover. cavity,

    The air duct system also includes: an ice-making fan, which is disposed in the accommodation cavity.
11. The air duct system of the refrigeration equipment according to any one of claims 1 to 6, further comprising:

    An air inlet duct and a return air duct, the air inlet duct and the return air duct are suitable for connecting the ice making air duct and the ice making chamber, the air inlet duct and the return air duct are both suitable for being located at The outer side of the refrigerated box bladder is connected to the refrigerated box bladder.
12. The air duct system of refrigeration equipment according to claim 11, characterized in that the air inlet duct includes: a first cover plate and a second cover plate that are snap-connected to each other, and the first cover plate is adapted to fit along the The outer wall of the refrigerated box extends and is connected to the outer wall of the refrigerated box, and the second cover is located on the side of the first cover away from the refrigerated box;

    The return air duct includes: a third cover plate and a fourth cover plate that are snap-connected to each other. The third cover plate is adapted to extend along the outer wall of the refrigerator box and be connected to the outer wall of the refrigerator box. On the wall, the fourth cover is located on the side of the first cover away from the refrigerated box.
13. The air duct system of refrigeration equipment according to any one of claims 1 to 6, characterized in that the refrigeration air duct cover is provided corresponding to the position of the first refrigeration air duct and the second refrigeration air duct. There are multiple refrigeration air outlets, and the refrigeration air duct cover is also provided with a refrigeration return air outlet. Both the refrigeration air outlet and the refrigeration return air outlet are connected to the refrigeration room of the refrigeration equipment. The refrigeration return air outlet is connected to the third refrigeration air outlet respectively. A refrigeration air duct is connected with the second refrigeration air duct to form a refrigeration air circulation structure.
14. The air duct system of refrigeration equipment according to claim 13, characterized in that the bottom wall or top wall of the refrigeration box is provided with a refrigeration air duct air inlet and two refrigeration air duct air inlets located on both sides of the refrigeration air duct air inlet. A refrigeration air duct return air outlet;

    The first refrigeration air duct and the second refrigeration air duct are connected with the air inlet of the refrigeration air duct; both sides of the refrigeration air duct cover correspond to the positions of the two return air outlets of the refrigeration air duct respectively. The refrigeration return air outlet is provided, and the two refrigeration return air outlets are adapted to communicate with the two refrigeration air duct return air outlets in one-to-one correspondence to form two refrigeration return air ducts.
15. A refrigeration equipment, characterized by including:

    Refrigerator bladder, the refrigerator bladder is provided with a cold storage room and an ice making room;

    Air duct system, the air duct system is the air duct system of the refrigeration equipment according to any one of claims 1-14, the air duct system is provided on the refrigeration box, the refrigeration air duct is connected to The refrigerating chamber is connected, and the ice making air duct is connected with the ice making chamber;

    The refrigeration system includes a compressor, a condenser, a throttling device and an evaporator connected in sequence. The evaporator includes an ice-making evaporator and a system evaporator. The ice-making evaporator is located in the ice-making air duct and is used for For cooling the ice making compartment, the system evaporator is used for cooling the refrigerator compartment.
16. The refrigeration equipment according to claim 15, characterized in that the ice making chamber is located in the refrigerating chamber and at the upper part of the refrigerating chamber, and the air inlet pipe of the air duct system is connected to the upper part of the ice making air duct and The top of the ice making chamber, the return air duct of the air duct system connects the lower part of the ice making air duct and the bottom of the ice making chamber.

Images