CN219693656U - Air duct assembly for refrigerator and refrigerator - Google Patents

Abstract

The utility model relates to an air duct assembly for a refrigerator and the refrigerator, wherein at least a first storage compartment for storing articles and at least a second cooling compartment for providing cold energy for the first storage compartment are defined in the refrigerator. The air duct assembly is internally limited with a first air duct used for conveying cooling air flow to the first storage compartment, and the first air duct is gradually contracted and then gradually expanded along the air flow direction in the air duct assembly; the air duct component is provided with a first air supply opening, and the first air duct is communicated with the first storage compartment through the first air supply opening; the tail end of the first air duct, which is used for being communicated with the first air supply outlet, is provided with at least one booster fan, and the booster fan is used for driving air flow in the first air duct to flow into the first storage compartment. According to the utility model, through the structural design of the first air duct and the booster fan, the air pressure in the first air duct is improved, the problem of air flow velocity loss in the first air duct is effectively solved, and the first storage compartment is ensured to have better refrigeration efficiency and refrigeration effect.

Description

Air duct assembly for refrigerator and refrigerator

Technical Field

The utility model relates to a refrigeration technology, in particular to an air duct assembly for a refrigerator and the refrigerator.

Background

In daily life, people mainly use refrigerators to store and keep articles fresh. The refrigerators commonly found in the prior art mainly include a conventional two-door refrigerator, a T-type refrigerator, a french refrigerator, a side-by-side refrigerator, and the like. In order to increase the storage space and improve the convenience of users in taking and placing articles, some refrigerators have a cooling chamber for accommodating an evaporator at the bottom of the refrigerator. Most of these refrigerators include a refrigerating compartment having a refrigerating storage environment, at least one temperature changing compartment capable of selectively having the refrigerating storage environment to serve as the refrigerating compartment or having a freezing storage indirectly to serve as the freezing compartment, and in order to save the number of evaporators, the refrigerating compartment and the at least one temperature changing compartment are generally supplied with cold by the same evaporator, and thus, cooling air flow transportation of the refrigerating compartment and all the temperature changing compartments is realized by the same air duct assembly. However, the relative positional relationship of each compartment to the evaporator chamber is different, so that the duct length and the duct extension path for supplying air to each compartment are different. The compartments farther from the evaporator compartment may have serious wind pressure loss due to long length of the air duct, uneven extension of the air duct, etc., which affects normal refrigerating efficiency and refrigerating effect.

Disclosure of Invention

It is an object of a first aspect of the present utility model to overcome at least one of the drawbacks of the prior art and to provide a duct assembly for a refrigerator having a low flow rate loss.

It is a further object of the first aspect of the present utility model to improve the uniformity of the supply air to the duct assembly.

An object of a second aspect of the present utility model is to provide a refrigerator having the above-described duct assembly.

According to a first aspect of the present utility model there is provided an air duct assembly for a refrigerator having at least a first storage compartment defined therein for storing items and at least a second cooling compartment for providing cooling to the first storage compartment;

the air duct assembly is internally provided with a first air duct used for conveying cooling air flow to the first storage compartment, and the first air duct is gradually reduced and then gradually expanded along the air flow direction in the air duct assembly; and is also provided with

The air duct assembly is provided with a first air supply opening, and the first air duct is communicated with the first storage compartment through the first air supply opening; the tail end of the first air duct, which is used for being communicated with the first air supply outlet, is provided with at least one booster fan, and the booster fan is used for driving air flow in the first air duct to flow into the first storage compartment.

Optionally, the number of the booster fans is multiple, and the positions of the plurality of booster fans are set so that the air flow in the first air duct uniformly flows to the first air supply outlet.

Optionally, a wind dividing structure extending along the airflow flowing direction in the first air channel is arranged in the first air channel, and the wind dividing structure divides the middle section of the first air channel into a first branch air channel and a second branch air channel which are mutually independent.

Optionally, the flow area of the downstream port of the first branch air duct is smaller than the flow area of the downstream port of the second branch air duct; and is also provided with

The number of the booster fans corresponding to the first branch air channels is smaller than that of the booster fans corresponding to the second branch air channels.

Optionally, the first air duct is internally provided with circular arc-shaped fixing grooves corresponding to the booster fans one by one, the at least one booster fan is correspondingly arranged in the corresponding circular arc-shaped fixing grooves, and the air outlet of the booster fan is forward opposite to the first air supply outlet.

Optionally, the first air supply port comprises an air supply barrel extending from the outer surface of the first air duct to the first storage compartment in a protruding way, and a plurality of air deflectors arranged in the air supply barrel; and is also provided with

The plurality of air deflectors are configured in a posture such that the cooling air flow sent out from the first air supply opening uniformly flows to the first storage compartment.

Optionally, the first air supply port is adjacent to a lateral first side of the air duct assembly; and is also provided with

The air duct assembly is positioned at the rear side of the first storage compartment, and each air deflector extends obliquely from back to front to the transverse second side of the air duct assembly.

Optionally, an included angle formed between the air deflector and a longitudinal plane extending in the front-rear direction is any angle value ranging from 70 degrees to 80 degrees.

Optionally, the first storage compartment is a small temperature-changing compartment selectively provided with a freezing storage environment or a refrigerating storage environment, the refrigerator is further internally limited with a refrigerating compartment provided with a refrigerating storage environment and a full temperature-changing compartment selectively provided with a freezing storage environment or a refrigerating storage environment, the second cooling compartment is further used for providing cold energy for the refrigerating compartment and the full temperature-changing compartment, and the set temperature interval of the full temperature-changing compartment is wider than the set temperature interval of the small temperature-changing compartment; and is also provided with

The air duct assembly is internally provided with: the full-temperature-changing air duct is used for communicating the second cooling chamber and the full-temperature-changing chamber; one end of the small variable temperature main air duct is communicated with the second cooling chamber; and one end of the straight-through air duct is communicated with the small variable-temperature main air duct, and the other end of the straight-through air duct is communicated with the refrigerating compartment; and one end of the first air channel is communicated with the small temperature-changing main air channel, and the other end of the first air channel is communicated with the first storage compartment.

According to a second aspect of the present utility model, there is also provided a refrigerator including:

the box body is internally provided with at least a first storage compartment for storing articles and a second cooling compartment for providing cold energy for the first storage compartment; and

the air duct assembly of any of the above aspects, for delivering a cooling air flow to at least the first storage compartment.

The air duct assembly for the refrigerator is internally limited with the first air duct for conveying cooling air flow to the first storage compartment of the refrigerator, the first air duct is gradually reduced and then gradually expanded along the air flow direction in the first air duct, and the air pressure in the first air duct can be increased through the section with gradually reduced flow area so as to promote the increase of the air flow velocity; and then the air supply range of the first air channel is enlarged through the section with gradually increased overflow area, so that the cooling air flow with increased air pressure is effectively and relatively uniformly sent to the first air supply port, uniform air supply is ensured, the air pressure in the first air channel can be increased through simple change of the structure, the flow velocity loss of the cooling air flow in the first air channel is reduced, and the good refrigeration efficiency and refrigeration effect of the first storage compartment are ensured.

Further, by arranging at least one booster fan at the tail end of the first air duct, which is used for being communicated with the first air supply outlet, the utility model can further improve the air pressure in the first air duct through the booster fan when the length of the first air duct is longer and/or the extension path of the first air duct is more curved, thereby effectively relieving the problem of air flow velocity loss in the first air duct.

Furthermore, the number of the booster fans can be matched with the overflow area of the air duct through the position arrangement of the plurality of booster fans, so that the air supply uniformity of the first air duct is further ensured.

Further, when the first air supply port deviates from the central position of the air duct assembly, the cooling air flow flowing out of the first air supply port can be uniformly guided to the first storage compartment by arranging the inclined air guide plate, so that the air supply uniformity of the first air duct is further ensured.

The above, as well as additional objectives, advantages, and features of the present utility model will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present utility model when read in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the utility model will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:

fig. 1 is a schematic structural view of a refrigerator according to an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view taken along section line B-B in FIG. 1;

FIG. 3 is a schematic structural exploded view of a duct assembly for a refrigerator according to one embodiment of the present utility model;

FIG. 4 is a partial schematic structural view of an air duct assembly for a refrigerator according to an embodiment of the present utility model;

fig. 5 is a schematic cross-sectional view of a duct assembly for a refrigerator in another exploded state according to an embodiment of the present utility model;

fig. 6 is a schematic enlarged view of a portion a in fig. 5.

Detailed Description

The present utility model first provides an air duct assembly for a refrigerator, fig. 1 is a schematic structural view of the refrigerator according to an embodiment of the present utility model, and fig. 2 is a schematic sectional view taken along a sectional line B-B in fig. 1. The refrigerator 1 includes a cabinet 10, and at least a first storage compartment 111 for storing articles and a second cooling compartment 122 for providing cooling capacity to the first storage compartment 111 are defined in the cabinet 10.

Fig. 3 is a schematic structural exploded view of a duct assembly for a refrigerator according to an embodiment of the present utility model, and fig. 4 is a partial structural schematic view of a duct assembly for a refrigerator according to an embodiment of the present utility model. Referring to fig. 3 and 4, the air duct assembly 20 defines a first air duct 252 therein for delivering cooling air flow to the first storage compartment 111, and the first air duct 252 tapers and then diverges in the air flow direction therein. That is, in the airflow direction in the first air duct 252, the flow area of the first air duct 252 gradually decreases and then gradually increases.

Further, the air duct assembly 20 is provided with a first air supply opening 28, and the first air duct 252 is communicated with the first storage compartment 111 through the first air supply opening 28; at least one booster fan 29 is arranged at the end of the first air duct 252, which is used for being communicated with the first air supply opening 28, and the booster fan 29 is used for driving air flow in the first air duct 252 to flow into the first storage compartment 111.

The air duct assembly 20 for a refrigerator of the present utility model is internally defined with a first air duct 252 for delivering cooling air flow to the first storage compartment 111 of the refrigerator 1, and the first air duct 252 is tapered and then gradually expanded in the air flow direction inside thereof. Thus, the wind pressure in the first air duct 252 can be increased by the section with gradually reduced flow area, so as to promote the increase of the airflow velocity; and then the air supply range of the first air duct 252 is enlarged through the section with the gradually increased overflow area, so that the cooling air flow with the increased air pressure is effectively and relatively uniformly sent to the first air supply opening 28, uniform air supply is ensured, the air pressure in the first air duct 252 can be increased through simple change of the structure, the flow velocity loss of the cooling air flow in the first air duct 252 is reduced, and the first storage compartment 111 has better refrigerating efficiency and refrigerating effect.

Further, by arranging at least one booster fan 29 at the end of the first air duct 252 for communicating with the first air supply port 28, the utility model can further increase the air pressure in the first air duct 252 by the booster fan 29 when the length of the first air duct 252 is longer and/or the extension path of the first air duct 252 is relatively curved, thereby effectively alleviating the problem of air flow velocity loss in the first air duct 252.

In some embodiments, the number of booster fans 29 is plural, and the plurality of booster fans 29 are positioned such that the airflow in the first air duct 252 flows evenly to the first air supply opening 28.

The utility model further ensures that the number of the booster fans 29 is matched with the overflow area of the air duct by arranging the booster fans 29, thereby further ensuring the air supply uniformity of the first air duct 252.

In some embodiments, a wind dividing structure 255 extending along the airflow direction is disposed in the first wind channel 252, and the wind dividing structure 255 divides the middle section of the first wind channel 252 into a first branch wind channel 2521 and a second branch wind channel 2522 that are independent from each other.

According to the utility model, the wind dividing structure 255 is arranged to divide wind, so that the flow area of each branch air duct is further reduced, and the wind pressure is further increased.

Preferably, the wind dividing structure 255 is disposed in the diverging section of the first air duct 252 to appropriately compensate for wind pressure loss caused by the diverging first air duct 252.

In some embodiments, the flow area of the downstream port of the first branch duct 2521 is smaller than the flow area of the downstream port of the second branch duct 2522. That is, the degree of divergent expansion of the first branch air duct 2521 is smaller than the degree of divergent expansion of the second branch air duct 2522. Accordingly, the number of booster fans 29 provided corresponding to the first branch air duct 2521 is smaller than the number of booster fans 29 provided corresponding to the second branch air duct 2522, so that the airflows flowing out of the first branch air duct 2521 and the second branch air duct 2522 are promoted to flow more uniformly to the first air supply port 28.

It is understood that the booster fan 29 disposed corresponding to the first branch air duct 2521 may be a booster fan 29 having an air intake opposite to the downstream port of the first branch air duct 2521, and the booster fan 29 disposed corresponding to the second branch air duct 2522 may be a booster fan 29 having an air intake opposite to the downstream port of the second branch air duct 2522.

Fig. 5 is a schematic cross-sectional view of a duct assembly for a refrigerator in another exploded state according to an embodiment of the present utility model, and fig. 6 is a schematic enlarged view of a portion a of fig. 5. In some embodiments, the first air duct 252 is provided with circular arc fixing grooves 2523 corresponding to the booster fans 29 one by one, and at least one booster fan 29 is correspondingly arranged in the corresponding circular arc fixing groove 2523, so that the installation structure of the booster fans 29 is simplified. And, the air outlet of booster fan 29 is in forward opposition with first supply-air outlet 28 to make the air current that booster fan 29 sent blow first storing compartment 111 through first supply-air outlet 28, reduce the air current flow resistance.

In some embodiments, the first air outlet 28 includes an air outlet barrel 281 extending from an outer surface of the first air duct 252 toward the first storage compartment 111 in a protruding manner, and a plurality of air deflectors 282 disposed within the air outlet barrel 281. The plurality of air deflectors 282 are arranged in such a posture that the cooling air flow sent from the first air supply port 28 flows uniformly to the first storage compartment 111.

According to the utility model, the plurality of air deflectors 282 are arranged in the air duct 281, and the flow direction of the air flowing out of the air duct 281 can be regulated through the gesture of the air deflectors 282, so that the first air supply opening 28 can be flexibly arranged at any transverse position of the air duct assembly 20, and the flexibility and rationality of the position design of the first air supply opening 28 are improved.

It can be appreciated that the position of the first air supply port 28 is fixed after being selected, so that the air deflector 282 can be fixed in a corresponding posture according to the position of the first air supply port 28 and can not swing, that is, the air deflector 282 can be fixedly connected with the air supply duct 281, so that the structural stability of the air deflector is improved, and the design difficulty is reduced.

In some embodiments, the first supply port 28 is adjacent to a lateral first side of the duct assembly 20. The air duct assembly 20 is located on the rear side of the first storage compartment 111, with each air deflector 282 extending laterally and laterally from rear to front toward the second side of the air duct assembly 20. That is, when the first air supply opening 28 is deviated from the central position of the air duct assembly 20, if the air guide plate 282 extends straight in the front-rear direction, the cooling air flow sent from the first air supply opening 28 will be concentrated on the first lateral side of the first storage compartment 111, resulting in less cooling capacity obtained on the second lateral side of the first storage compartment 111 and uneven cooling of the entire first storage compartment 111.

For this reason, the present utility model uniformly guides the cooling air flow flowing out of the first air supply port 28 to the first storage compartment 111 by providing the inclined air guide plate 282 when the first air supply port 28 is deviated from the central position of the duct assembly 20, thereby further securing the air supply uniformity of the first duct 252.

In some embodiments, the included angle between the air deflector 282 and the longitudinal plane extending in the front-to-back direction is any angle ranging from 70 ° to 80 °. For example, the angle between the air deflector 282 and the longitudinal plane extending in the front-rear direction may be 70 °, 71 °, 72 °, 73 °, 74 °, 75 °, 76 °, 77 °, 78 °, 79 °, or 80 °.

It will be appreciated that the angle between the deflector 282 and the longitudinal plane extending in the fore-aft direction may be reasonably selected based on the relative position between the first supply port 28 and the central region of the duct assembly 20.

In some embodiments, the first storage compartment 111 is a small temperature change compartment selectively having a freezing storage environment or a refrigerating storage environment, the refrigerator 1 further defines therein a refrigerating compartment 113 having a refrigerating storage environment, a full temperature change compartment 112 selectively having a freezing storage environment or a refrigerating storage environment, and the second cooling compartment 122 is further used to provide cooling energy for the refrigerating compartment 113 and the full temperature change compartment 112, and the set temperature interval of the full temperature change compartment 112 is wider than the set temperature interval of the small temperature change compartment. That is, the small variable temperature chamber 111 and the full variable temperature chamber 112 are so-called variable temperature chambers, and the temperature inside the chambers can be set to be between-25 ℃ and 8 ℃ in general, that is, the small variable temperature chamber 111 and the full variable temperature chamber 112 can be set to be in a refrigerating state or a freezing state. Further, the set temperature interval of the full temperature change chamber 112 is wider than the set temperature interval of the small temperature change chamber 111, that is, the amount of cooling required for the full temperature change chamber 112 may be more than the amount of cooling required for the small temperature change chamber 111. Specifically, the temperature of the total temperature change compartment 112 can be set, for example, between-25 and 8 ℃, and the total temperature change compartment 112 can be switched between a normal frozen state and a refrigerated state. The temperature of the small temperature change compartment 111 can be set, for example, between-5 and 8 ℃, i.e., the small temperature change compartment 111 can be switched between a soft freeze state and a refrigerated state.

Further, the duct assembly 20 also defines therein: the full temperature-changing air duct 26 is used for communicating the second cooling chamber 122 and the full temperature-changing chamber 112; a small temperature change main air duct 251 having one end for communicating with the second cooling chamber 122; and a through air duct 27 having one end communicating with the small temperature change main air duct 251 and the other end for communicating with the refrigerating compartment 113; and, one end of the first air duct 252 communicates with the small temperature change main air duct 251, and the other end is used to communicate with the first storage compartment 111.

Since the temperature-adjustable interval of the full-temperature-variable compartment 112 is wider than the temperature-adjustable interval of the first storage compartment 111, that is, the settable temperature of the full-temperature-variable compartment 112 is lower, and more cold is required. Therefore, the full temperature changing air duct 26 which is directly communicated with the second cooling chamber 122 and the full temperature changing chamber 112 is arranged in the air duct assembly 20 and is used for directly and independently supplying air to the full temperature changing chamber 112, so that more cooling air flow is conveniently conveyed to the full temperature changing chamber 112, and the lower set temperature requirement of the full temperature changing chamber is met.

Since the set temperature interval of the first storage compartment 111 is narrow, the temperature of the refrigerating compartment 113 is relatively high, and the amount of cold required for both is relatively small. For this reason, the present utility model provides the small temperature-changing main air duct 251 in the air duct assembly 20 to simultaneously supply the cooling air flow to the first storage compartment 111 and the refrigerating compartment 113, and branches from the small temperature-changing main air duct 251 into the first air duct 252 and the through air duct 27, so as to separately supply the cooling air flow to the first storage compartment 111 and the refrigerating compartment 113, which is reasonable in design.

In some embodiments, the full temperature swing air duct 26 and the small temperature swing main air duct 251 each extend upwardly from their own airflow inlet at the bottom of the air duct assembly 20, the full temperature swing air duct 26 being formed on a first side in the lateral direction of the air duct assembly 20, and the small temperature swing main air duct 251 being formed on a second side in the lateral direction of the air duct assembly 20 and adjacent to the full temperature swing air duct 26. The first air channel 252 and the through air channel 27 each continue upwardly from the upper portion of the small temperature change main air channel 251 to the top of the air channel assembly 20, with the first air channel 252 and the through air channel 27 being laterally adjacent.

That is, the small temperature change main air duct 251 is distributed at the lower portion of the air duct assembly 20 laterally adjacent to the full temperature change air duct 26 to fully utilize the lateral space of the lower portion of the air duct assembly 20. The first air duct 252 and the through air duct 27 are laterally adjacently distributed at the upper portion of the air duct assembly 20 to fully utilize the lateral space at the upper portion of the air duct assembly 20. Therefore, all the space inside the air duct assembly 20 is fully utilized, the space utilization rate of the air duct assembly 20 is high, and the layout of each air duct is more reasonable.

Because the cooling capacity required for the refrigerating compartment 113, the first storing compartment 111 and the full temperature changing compartment 112 is gradually increased, the refrigerating compartment 113, the first storing compartment 111, the full temperature changing compartment 112 and the second cooling compartment 122 are arranged in order from top to bottom in some embodiments. That is, the distances among the refrigerating compartment 113, the first storing compartment 111, the full temperature changing compartment 112 and the second cooling compartment 122 are getting closer and closer, so that the full temperature changing compartment 112 obtains the most cold energy, and the first storing compartment 111 obtains more cold energy.

Based on the layout mode of the refrigerating compartment 113, the first storage compartment 111, the full-temperature changing compartment 112 and the second cooling compartment 122 from top to bottom, the full-temperature changing air duct 26 is arranged on one lateral side of the lower part of the air duct assembly 20, so that the full-temperature changing air duct 26 is convenient to correspond to the position of the full-temperature changing compartment 112, is close to the second cooling compartment 122, and is convenient to convey more cold energy to the full-temperature changing compartment 112. And, a part of space is reserved at one lateral side of the lower part of the air duct assembly 20 for arranging the small temperature-changing main air duct 251 so as to convey cooling air flow to the first storage compartment 111 and the refrigerating compartment 113 which are higher in position, and the layout of each air duct is quite reasonable.

Further, the top of the small temperature-changing main air duct 251 is higher than the top of the full temperature-changing air duct 26, and the first air duct 252 is inclined upwards from the upper part of the small temperature-changing main air duct 251 to the upper part of the full temperature-changing air duct 26 and continues to extend upwards to the top of the air duct assembly 20, so that cross interference with the full temperature-changing air duct 26 is avoided; the straight through duct 27 extends vertically upward from the top of the small temperature change main duct 251 to the top of the duct assembly 20. Thus, the straight-through air duct 27 and the small temperature-changing main air duct 251 form an air duct which is straight and straight upwards and downwards, thereby avoiding the condition that the cooling air flow flowing to the refrigerating compartment 113 at the uppermost side is detoured, reversed and the like, and improving the air supply efficiency of the refrigerating compartment 113.

In some embodiments, the air duct assembly 20 may include an air duct front cover 21, an air duct rear cover 22 coupled to a rear side of the air duct front cover 21, and a thermal insulation assembly 23 disposed between the air duct front cover 21 and the air duct rear cover 22. The full temperature change air duct 26, the small temperature change main air duct 251, the first air duct 252, and the through air duct 27 are formed in the heat insulating assembly 23.

Further, the heat insulation assembly 23 includes a front air duct foam 231, a rear air duct foam 232 connected to the rear side of the front air duct foam 231, and a heat insulation PE film 233 attached to the front air duct foam 231 and the rear air duct foam 232. The rear duct foam 232 and the thermal insulation PE film 233 cover different areas of the front duct foam 231, respectively. The full temperature-changing air duct 26, the small temperature-changing main air duct 251 and the straight-through air duct 27 are defined by a front air duct foam 231 and a rear air duct foam 232 together, so that the heat-insulating performance is good; the first air duct 252 is defined by the front air duct foam 231 and the thermal insulation PE film 233, and has a slightly poor thermal insulation performance, so that the cost is reduced on the basis of meeting the air supply requirement of the first storage compartment 111.

The utility model also provides a refrigerator 1, the refrigerator 1 comprises a refrigerator body 10, and at least a first storage compartment 111 for storing articles and a second cooling compartment 122 for providing cold for the first storage compartment 111 are defined in the refrigerator body 10.

In particular, the refrigerator 1 further comprises an air duct assembly 20 as described in any of the above embodiments for delivering a cooling air flow to at least the first storage compartment 111.

According to the refrigerator disclosed by the utility model, the structure of the first air duct 252 in the air duct assembly 20 is specially designed, and at least one booster fan 29 is arranged at the tail end of the first air duct 252, which is used for being communicated with the first air supply outlet 28, so that the air pressure in the first air duct 252 is improved, the problem of air flow velocity loss in the first air duct 252 is effectively solved, and the first storage compartment 111 is ensured to have better refrigerating efficiency and refrigerating effect.

In some embodiments, the housing 10 also defines a refrigerated compartment 114 having a refrigerated storage environment therein, the refrigerated compartment 114 delivering a cooling air flow through a refrigerated air duct assembly located on a rear side thereof.

Further, the refrigerating compartment 114 may be located at a first side of the cabinet 10 in the transverse direction, and the refrigerating compartment 113, the first storing compartment 111, and the full temperature changing compartment 112 may be located at a second side of the cabinet 10 in the transverse direction from top to bottom.

Further, the freezing compartment 114 provides cooling capacity through a first cooling compartment located at the bottom thereof, and the refrigerating compartment 113, the first storing compartment 111 and the full-temperature compartment 112 each provide cooling capacity through a second cooling compartment 122 located at the bottom of the full-temperature compartment 112. The first cooling chamber and the second cooling chamber 122 are both arranged at the bottom in the refrigerator body 10, so that the storage space at the rear side is not occupied, and the volume ratio of the refrigerator 1 is improved.

It should be noted that, in the description of the present utility model, terms such as "center", "upper", "lower", "top", "bottom", "front", "rear", "vertical", "horizontal", "inner", "outer", and the like, which indicate directions or positional relationships, are based on actual use states of the refrigerator 1 and the duct assembly 20, are merely for convenience of description, and do not indicate or imply that the devices or elements must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Further, it should also be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected, can be indirectly connected through an intermediate medium, and can also be communicated with the inside of two elements. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.

By now it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the utility model have been shown and described herein in detail, many other variations or modifications of the utility model consistent with the principles of the utility model may be directly ascertained or inferred from the present disclosure without departing from the spirit and scope of the utility model. Accordingly, the scope of the present utility model should be understood and deemed to cover all such other variations or modifications.

Claims (10)

1. An air duct assembly for a refrigerator having at least a first storage compartment defined therein for storing items and at least a second cooling compartment for providing cooling to the first storage compartment; it is characterized in that the method comprises the steps of,

the air duct assembly is internally provided with a first air duct used for conveying cooling air flow to the first storage compartment, and the first air duct is gradually reduced and then gradually expanded along the air flow direction in the air duct assembly; and is also provided with

The air duct assembly is provided with a first air supply opening, and the first air duct is communicated with the first storage compartment through the first air supply opening; the tail end of the first air duct, which is used for being communicated with the first air supply outlet, is provided with at least one booster fan, and the booster fan is used for driving air flow in the first air duct to flow into the first storage compartment.

2. The duct assembly of claim 1, wherein the duct assembly comprises a housing,

the number of the booster fans is multiple, and the positions of the booster fans are set so that the air flow in the first air duct uniformly flows to the first air supply outlet.

3. The duct assembly of claim 2, wherein the duct assembly comprises,

the first air channel is internally provided with an air dividing structure extending along the flow direction of the air flow in the first air channel, and the air dividing structure divides the middle section of the first air channel into a first branch air channel and a second branch air channel which are mutually independent.

4. The duct assembly of claim 3, wherein,

the flow area of the downstream port of the first branch air duct is smaller than that of the downstream port of the second branch air duct; and is also provided with

The number of the booster fans corresponding to the first branch air channels is smaller than that of the booster fans corresponding to the second branch air channels.

5. The duct assembly of claim 3, wherein,

the inside of first wind channel be equipped with booster fan one-to-one's convex fixed slot, at least one booster fan corresponds to be set up in corresponding in the convex fixed slot, just booster fan's air outlet with first supply-air outlet forward is relative.

6. The duct assembly of claim 1, wherein the duct assembly comprises a housing,

the first air supply port comprises an air supply cylinder which extends from the outer surface of the first air channel to the first storage compartment in a protruding mode, and a plurality of air deflectors arranged in the air supply cylinder; and is also provided with

The plurality of air deflectors are configured in a posture such that the cooling air flow sent out from the first air supply opening uniformly flows to the first storage compartment.

7. The duct assembly of claim 6, wherein the duct assembly comprises,

the first air supply port is adjacent to a transverse first side of the air duct assembly; and is also provided with

The air duct assembly is positioned at the rear side of the first storage compartment, and each air deflector extends obliquely from back to front to the transverse second side of the air duct assembly.

8. The duct assembly of claim 7, wherein the duct assembly comprises,

the included angle between the air deflector and the longitudinal plane extending in the front-rear direction is any angle value ranging from 70 degrees to 80 degrees.

9. The duct assembly of claim 1, wherein the duct assembly comprises a housing,

the first storage compartment is a small temperature-changing compartment selectively provided with a freezing storage environment or a refrigerating storage environment, the refrigerator is internally provided with a refrigerating compartment provided with a refrigerating storage environment and a full temperature-changing compartment selectively provided with the freezing storage environment or the refrigerating storage environment, the second cooling compartment is also used for providing cold energy for the refrigerating compartment and the full temperature-changing compartment, and the set temperature interval of the full temperature-changing compartment is wider than the set temperature interval of the small temperature-changing compartment; and is also provided with

The air duct assembly is internally provided with: the full-temperature-changing air duct is used for communicating the second cooling chamber and the full-temperature-changing chamber; one end of the small variable temperature main air duct is communicated with the second cooling chamber; and one end of the straight-through air duct is communicated with the small variable-temperature main air duct, and the other end of the straight-through air duct is communicated with the refrigerating compartment; and one end of the first air channel is communicated with the small temperature-changing main air channel, and the other end of the first air channel is communicated with the first storage compartment.

10. A refrigerator, comprising:

the box body is internally provided with at least a first storage compartment for storing articles and a second cooling compartment for providing cold energy for the first storage compartment; and

the air chute assembly as in any one of claims 1-9, for delivering a cooling airflow to at least the first storage compartment.