CN219713760U - Refrigerator and refrigerating air duct thereof - Google Patents

Abstract

The utility model provides a freezing air duct of a refrigerator and the refrigerator, wherein the freezing air duct comprises an air duct component and an air door, the air duct component is provided with a first air duct communicated with an air inlet, the side wall of the air duct component is provided with an air outlet and a first air return opening, the air outlet is used for being communicated with a storage compartment of the refrigerator, and the air inlet and the first air return opening are used for being communicated with an evaporation chamber of the refrigerator, wherein the evaporation chamber is provided with an evaporator; the air door is assembled on the air duct component, when the evaporator starts defrosting, the air door moves to a first position to close the air outlet and open the first air return opening, and when the evaporator stops defrosting, the air door moves to a second position to open the air outlet and close the first air return opening. According to the freezing air duct, in the defrosting process of the evaporator of the refrigerator, hot air in the evaporating cavity cannot enter the storage room through the air outlet, so that the temperature of the storage room is prevented from rising to influence the storage effect when the evaporator is defrosted.

Description

Refrigerator and refrigerating air duct thereof

Technical Field

The utility model belongs to the technical field of refrigerators, and particularly relates to a refrigerating air duct of a refrigerator and the refrigerator.

Background

An evaporator is arranged in a freezing air duct of the refrigerator, when the air flow in the air duct is insufficient, the surface of the evaporator is easy to freeze, and heat is required to be generated through the operation of a heater in the freezing air duct so as to defrost the evaporator. However, the existing freezing air duct of the refrigerator is directly communicated with the refrigerating chamber and the freezing chamber, and in the defrosting process of the evaporator, excessive heat can enter the refrigerating chamber and the freezing chamber, so that the temperature of the refrigerating chamber is raised too high, and the refrigerating effect of the refrigerator is affected.

Disclosure of Invention

The embodiment of the utility model provides a refrigerating air duct of a refrigerator and the refrigerator, which can solve the problem that when the refrigerator is defrosted, heat enters a storage room to cause the temperature of the storage room to rise, and the refrigerating effect of the refrigerator is affected.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a freezing air duct of a refrigerator, comprising:

the refrigerator comprises an air duct assembly, a first air duct and a second air duct, wherein the first air duct is communicated with an air inlet, an air outlet and a first air return opening are formed in the side wall of the first air duct, the air outlet is used for being communicated with a storage compartment of the refrigerator, and the air inlet and the first air return opening are used for being communicated with an evaporation chamber of the refrigerator, wherein the evaporation chamber is provided with an evaporator;

and the air door is assembled on the air duct assembly, when the evaporator starts defrosting, the air door moves to a first position to close the air outlet and open the first air return opening, and when the evaporator stops defrosting, the air door moves to a second position to open the air outlet and close the first air return opening.

In some embodiments, the duct assembly includes:

the air duct seat is provided with the air inlet;

the air duct cover is used for being assembled with the air duct seat to form an accommodating space;

the first air duct pipe is arranged in the accommodating space, two ends of the first air duct pipe are respectively connected with the air duct base and the air duct cover, and are used for surrounding the air duct base and the air duct cover to form the first air duct, and the air outlet and the first air return opening are arranged on the first air duct pipe;

the air door is sleeved on the first air duct pipe and can move relative to the first air duct pipe.

In some embodiments, the air outlet comprises a refrigeration air outlet proximate to a first side of the air duct base for communicating with a refrigeration compartment of the refrigerator, the first side proximate to the refrigeration compartment.

In some embodiments, the air outlet further comprises a first refrigeration air outlet and a second refrigeration air outlet, wherein the first refrigeration air outlet and the second refrigeration air outlet are used for communicating with a refrigeration compartment of the refrigerator;

the first freezing air outlet and the second freezing air outlet are arranged at intervals and are arranged on one side opposite to the refrigerating air outlet.

In some embodiments, the first return air inlet is disposed between the first and second refrigerated air outlets.

In some embodiments, the damper is provided with a first opening, a second opening, and a third opening;

when the air door moves to the first position, the air door blocks the refrigeration air outlet, the first refrigeration air outlet and the second refrigeration air outlet, and the first air return port is used for communicating with the evaporation chamber through the second opening/the third opening;

when the air door moves to the second position, the air door blocks the first air return opening, the refrigerating air outlet is communicated with the refrigerating compartment through the first opening, the first freezing air outlet is communicated with the freezing compartment through the second opening, and the second freezing air outlet is communicated with the freezing compartment through the third opening.

In some embodiments, the air duct assembly further comprises a second air duct pipe connected with the air duct base, the air duct cover and the first air duct pipe for enclosing with the air duct base, the air duct cover and the first air duct pipe to form a second air duct, and the first refrigeration air outlet is communicated with the second air duct;

the air duct cover is used for forming a fourth opening in the second air duct part, and the second air duct is communicated with the freezing compartment through the fourth opening so that the first freezing air outlet is communicated with the freezing compartment;

the fourth openings are arranged in a plurality of mode, and the fourth openings are arranged at intervals.

In some embodiments, the air duct assembly further comprises a third air duct pipe connected with the air duct base, the air duct cover and the first air duct pipe for enclosing with the air duct base, the air duct cover and the first air duct pipe to form a third air duct, and the second refrigeration air outlet is communicated with the third air duct;

the air duct cover is used for forming the third air duct part and is provided with a fifth opening, and the third air duct is communicated with the freezing compartment through the fifth opening so that the second freezing air outlet is communicated with the freezing compartment;

the fifth openings are arranged in a plurality, and the fifth openings are arranged at intervals.

In some embodiments, the air duct base is provided with a second air return port, and the first air return port is used for communicating with the evaporation chamber through the second air return port;

the second return air inlet is used for being close to the evaporator.

A refrigerator, comprising:

a storage compartment;

an evaporation chamber provided with an evaporator;

the refrigerating air duct is provided with a communication channel between the refrigerating air duct and the storage compartment as well as between the refrigerating air duct and the evaporation chamber.

According to the refrigerating air duct of the refrigerator and the refrigerator, in the defrosting process of the evaporator of the refrigerator, the air outlet is closed, so that hot air in the evaporating cavity cannot enter the storage room through the air outlet, and the temperature of the storage room is prevented from rising to influence the storage effect when the evaporator is defrosted. And after the hot air returns to the evaporation chamber through the opened first return air inlet, the evaporator can be continuously defrosted, so that the defrosting efficiency of the evaporator is also improved. After the evaporator of the refrigerator stops defrosting, cold air generated by the evaporator enters the storage compartment of the refrigerator through the air outlet so as to cool the storage compartment.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the drawings that are required to be used in the description of the embodiments will be briefly described below. It is evident that the figures in the following description are only some embodiments of the utility model, from which other figures can be obtained without inventive effort for a person skilled in the art.

For a more complete understanding of the present utility model and the advantages thereof, reference is now made to the following descriptions taken in conjunction with the accompanying drawings. Wherein like reference numerals refer to like parts throughout the following description.

Fig. 1 is a schematic structural diagram of a cooling air duct according to an embodiment of the present utility model at a first view angle.

Fig. 2 is a schematic structural diagram of a cooling air duct according to an embodiment of the present utility model under a second view angle.

Fig. 3 is an exploded view of the chilled air duct shown in fig. 2.

Fig. 4 is an exploded view of an air duct assembly according to an embodiment of the present utility model.

Fig. 5 is a schematic view of a first structure of a damper according to an embodiment of the present utility model.

Fig. 6 is a schematic view of a second structure of the damper according to the embodiment of the present utility model.

Fig. 7 is a schematic structural view of a refrigerator according to an embodiment of the present utility model.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

The embodiment of the utility model provides a refrigerating air duct of a refrigerator, which can be a single-door refrigerator, a double-door refrigerator or a multi-door refrigerator. The refrigerating air duct is used for conveying cold air formed under the action of the evaporator to each storage compartment of the refrigerator so as to cool the storage compartments. When the air circulation in the chamber of the refrigerator where the evaporator is located is insufficient, the evaporator is easy to freeze, and a heater is needed to heat the air around the evaporator to defrost the evaporator, and the heater is usually arranged in the chamber where the evaporator is located. The refrigerating air duct of the refrigerator provided by the embodiment of the utility model can prevent the temperature of the storage room from rising due to the fact that air heated by the heater enters the storage room through the refrigerating air duct when the evaporator is frosted.

Fig. 1 to fig. 3 are schematic diagrams illustrating a structure of a cooling air duct provided by an embodiment of the present utility model at a first view angle, fig. 2 is a schematic diagram illustrating a structure of a cooling air duct provided by an embodiment of the present utility model at a second view angle, and fig. 3 is an exploded view of the cooling air duct shown in fig. 2. The refrigeration air duct 10 includes an air duct assembly 11 and an air door 12.

Wherein the air duct assembly 11 forms a first air duct 111 communicating with the air inlet 110. The inner wall of the air duct assembly 11 forming the first air duct 111 is provided with an air outlet 112 and a first air return 113. The air outlet 112 is used to communicate with a storage compartment of the refrigerator. The air inlet 110 and the first air return 113 are used for communicating with an evaporation chamber of the refrigerator provided with an evaporator. The duct assembly 11 is, for example, integrally formed, and is made of, for example, plastic.

The air door 12 is assembled on the air duct assembly 11, and moves to a first position to close the air outlet 112 and open the first air return 113 when the evaporator of the refrigerator starts defrosting; when the evaporator of the refrigerator stops defrosting, the damper moves to the second position to open the air outlet 112 and close the first return air inlet 113.

In the freezing air duct of the refrigerator provided by the embodiment of the utility model, in the defrosting process of the evaporator of the refrigerator, the air outlet 112 is closed, and hot air in the evaporating cavity cannot enter the storage room through the air outlet 112, so that the temperature of the storage room is prevented from rising to influence the storage effect when the evaporator is defrosted. In addition, after the hot air returns to the evaporation chamber through the opened first return air port 113, the evaporator can be continuously defrosted, so that the defrosting efficiency of the evaporator is also improved. After the evaporator of the refrigerator stops defrosting, cold air generated by the evaporator enters the refrigerator storage compartment through the air outlet 112 so as to cool the storage compartment.

In some embodiments, the freezing air duct 10 further includes a fan 13, where the fan 13 is disposed in the first air duct 111, for accelerating the circulation speed of the air in the air duct.

Further, referring to fig. 4, fig. 4 is an exploded view of an air duct assembly according to an embodiment of the present utility model. The air duct assembly 11 includes an air duct base 114, an air duct cover 115, a first air duct tube 116, a second air duct tube 117, a third air duct tube 118, and a fourth air duct tube 119.

The air duct base 114 is disposed on a side of the chamber near the refrigerator evaporator, and includes a bottom wall and a side wall surrounding the bottom wall. Wherein, the bottom wall of the air channel base 114 is provided with an air inlet 110. The air inlet 110 is, for example, circular.

The air duct cover 115 is configured to be assembled with the air duct base 114 to form an accommodating space 1110.

The first duct 116 is disposed in the accommodating space 1110, and two ends of the first duct are respectively connected to the duct base 114 and the duct cover 115, and are used for being connected to the duct base 114 and the duct cover 115 to form the first duct 111. The first air duct 111 communicates with the air inlet 110. The first air duct 116 is provided with an air outlet 112 and a first air return 113. The first duct pipe 116 is, for example, cylindrical, and the first duct 111 forms a cylindrical space.

In some embodiments, the air outlets 112 include refrigeration air outlets such as a first refrigeration air outlet 1121, a first refrigeration air outlet 1122, and a second refrigeration air outlet 1123.

The refrigerating outlet 1121 is used to communicate with a refrigerating chamber of a refrigerator. The refrigeration outlet 1121 is disposed adjacent to a first side wall 1141 of the air channel seat 114. The first side wall 1141 is, for example, close to one side of the refrigerator's cooling chamber, so that the cooling air outlet 1121 is closer to the cooling chamber, and is convenient for communicating with the cooling chamber.

The second air duct 117 is disposed in the accommodating space 1110, and is connected to the air duct base 114, the air duct cover 115, and the outer wall of the first air duct 116, and encloses the second air duct 1171. The first side wall 1141 is provided with a second cooling air outlet which is communicated with a cooling chamber of the refrigerator, and two ends of the second air duct 1171 are respectively communicated with the first cooling air outlet 1121 and the second cooling air outlet.

In practical application, when the refrigerating outlet 1121 is opened, the air flowing into the first air duct 111 from the chamber where the refrigerator evaporator is located flows into the second air duct 1171 through the first refrigerating outlet 1121, and flows into the refrigerator refrigerating chamber through the second refrigerating outlet.

The first and second refrigerating air outlets 1122 and 1123 are both used for communicating with a refrigerating chamber of a refrigerator. The first and second cooling air outlets 1122 and 1123 are provided at intervals, for example, and are provided opposite to the cooling air outlet 1121.

The third air duct 118 is disposed in the accommodating space 1110, and is connected to the air duct base 114, the air duct cover 115, and the outer wall of the first air duct 116, and encloses to form a third air duct 1181. The air duct cover 115 is provided with a plurality of fourth openings 1151 at intervals of a portion for forming the third air duct 1181, and the fourth openings 1151 are used for communicating with a freezing chamber of the refrigerator. The third air duct 1181 is in communication with the first refrigeration outlet 1122 and the plurality of fourth openings 1151. The third air duct 1181 is, for example, elongated and extends in a direction opposite to the first air duct 111. The fourth openings 1151 are arranged at intervals along the extending direction of the third air duct 1181, so that air out of the refrigerating chamber is uniform, and rapid refrigeration is realized.

In practical application, when the first freezing air outlet 1122 is opened, the air flowing into the first air duct 111 from the chamber of the refrigerator evaporator flows into the third air duct 1181 through the first freezing air outlet 1122 and flows into the refrigerator freezing chamber through the plurality of fourth openings 1151.

The fourth air duct 119 is disposed in the accommodating space 1110, and is connected to the air duct base 114, the air duct cover 115, and the outer wall of the first air duct 116, and encloses a fourth air duct 1191. The air duct cover 115 is provided with a plurality of fifth openings 1152 at intervals of a portion for forming the fourth air duct 1191, and the fifth openings 1152 are used for communicating with a freezing chamber of the refrigerator. The fourth air channel 1191 communicates with the second cool air outlet 1123 and the plurality of fifth openings 1152. The fourth air channel 1191 is, for example, elongated and extends in a direction opposite to the first air channel 111. The fifth openings 1152 are arranged at intervals along the extending direction of the fourth air channel 1191, so that the air flowing out into the freezing chamber is uniform, and rapid refrigeration is realized. The third air channel 1181 and the fourth air channel 1191 extend in the same direction, for example, and are symmetrical with respect to the center line of the air channel base 114.

In practical application, when the second refrigeration outlet 1123 is opened, the air flowing into the first air duct 111 from the chamber of the refrigerator evaporator flows into the fourth air duct 1191 through the second refrigeration outlet 1123 and flows into the refrigerator freezing chamber through the plurality of fifth openings 1152.

The first air return port 113 is disposed between the first cooling air outlet 1122 and the second cooling air outlet 1123, for example. The first air return opening 113, the first cooling air outlet 1122 and the second cooling air outlet 1123 may be disposed at intervals.

In some embodiments, at least one second return air inlet 1142 is further provided on a side of the bottom wall of the air duct base 114, which is close to the refrigerator evaporator, and the second return air inlet 1142 is used for communicating with a chamber in which the refrigerator evaporator is located. The second air return openings 1142 are, for example, two at intervals and are symmetrical with respect to a central line of the bottom wall of the air duct base 114. The first air return port 113 is communicated with the second air return port 1142, and is communicated with a chamber where the refrigerator evaporator is located through the second air return port 1142.

In the practical application process, when the first air return port 113 is opened, the air flowing into the first air duct 111 from the chamber of the refrigerator evaporator flows out of the first air duct 111 through the first air return port 113, and flows back to the chamber of the refrigerator evaporator through the second air return port 1142.

Further, referring to fig. 5 to 6, fig. 5 is a first structural schematic diagram of a damper according to an embodiment of the present utility model, and fig. 6 is a second structural schematic diagram of a damper according to an embodiment of the present utility model. The air door 12 is, for example, annular or -shaped and is used for being sleeved on the first air duct 116. The damper 12 is provided with a first opening 121, a second opening 122 and a third opening 123.

When the damper 12 is in the first position, the damper 12 covers the first return air opening 113. Meanwhile, the portion of the damper 12 provided with the first opening 121 is at least partially overlapped with the portion of the first duct tube 116 provided with the first refrigerating outlet 1121, so that the first refrigerating outlet 1121 is used to communicate with the refrigerating chamber of the refrigerator through the first opening 121; the portion of the damper 12 where the second opening 122 is provided at least partially overlaps the portion of the first air duct tube 116 where the first freezer outlet 1122 is provided, such that the first freezer outlet 1122 is configured to communicate with the freezer compartment of the refrigerator through the second opening 122; the portion of the damper 12 provided with the third opening 123 is at least partially overlapped with the portion of the first duct tube 116 provided with the second freezing outlet 1123, so that the second freezing outlet 1123 is used to communicate with the freezing chamber of the refrigerator through the third opening 123.

When the damper 12 is at the second position, the damper 12 covers the first cooling air outlet 1121, the first cooling air outlet 1122 and the second cooling air outlet 1123. Meanwhile, the portion of the damper 12 provided with the second opening 122 is at least partially overlapped with the portion of the first duct tube 116 provided with the first return air port 113, so that the first return air port 113 is used to communicate with the chamber of the refrigerator provided with the evaporator through the second opening 122. In other embodiments, when the damper 12 is in the second position, the portion of the damper 12 provided with the third opening 123 at least partially overlaps the portion of the first air duct tube 116 provided with the first return air port 113 such that the first return air port 113 is configured to communicate with the chamber of the refrigerator provided with the evaporator through the third opening 123.

In some embodiments, the freezer tunnel 10 further includes a drive motor (not shown) coupled to the damper 12 for driving the damper 12 to move to the first position in response to when the evaporator of the refrigerator begins to defrost; when the evaporator of the refrigerator stops defrosting, the damper 12 is driven to move to the second position. In some embodiments, when the evaporator of the refrigerator stops defrosting, the chamber in which the evaporator is located also has hot air, which, if the air outlet 112 is opened immediately, causes the compartment of the refrigerator to warm up. Thus, the damper 12 may be driven to move to the second position after the first time delay by the driving motor when the evaporator of the refrigerator stops defrosting.

In the refrigerating air duct 10 of the refrigerator provided by the embodiment of the utility model, when the evaporator of the refrigerator is defrosted, the air door 12 closes the first refrigerating air outlet 1121, the first refrigerating air outlet 1122 and the second refrigerating air outlet 1123, and hot air in the evaporating cavity cannot enter the refrigerating chamber and the freezing chamber of the refrigerator through the air outlet 112, so that the temperature of the refrigerating chamber and the freezing chamber is prevented from being increased when the evaporator is defrosted to influence the storage effect. In addition, after the hot air returns to the evaporation chamber through the opened first return air port 113, the evaporator can be continuously defrosted, so that the defrosting efficiency of the evaporator is also improved. After the evaporator of the refrigerator stops defrosting, cold air generated by the evaporator enters the refrigerator storage compartment through the air outlet 112 so as to cool the storage compartment.

The embodiment of the utility model also provides a refrigerator, and referring to fig. 7, fig. 7 is a schematic structural diagram of the refrigerator according to the embodiment of the utility model. The refrigerator 1 includes the above-described freezing duct 10, the housing 20, the storage compartment 30, the evaporator 40, and the evaporation chamber 50 in which the evaporator is located.

The refrigerating air duct 10, the storage compartment 30, the evaporator 40 and the evaporation chamber 50 are all disposed in the housing 20, and a communication channel is provided between the refrigerating air duct 10 and the storage compartment 30, the evaporation chamber 50.

In the refrigerator provided by the embodiment of the utility model, when the evaporator 40 is used for defrosting, hot air in the evaporating chamber 50 cannot enter the storage compartment 30 through the refrigerating air duct 10, so that the temperature in the storage compartment 30 is prevented from rising too high, and the refrigerating/freezing effect of the storage compartment 30 is ensured.

The refrigerator and the refrigerating air duct thereof provided by the embodiment of the utility model are described in detail, and specific examples are applied to the principle and the implementation mode of the utility model, and the description of the above embodiments is only used for helping to understand the method and the core idea of the utility model; meanwhile, as those skilled in the art will vary in the specific embodiments and application scope according to the ideas of the present utility model, the present description should not be construed as limiting the present utility model in summary.

Claims (10)

1. A refrigerating duct of a refrigerator, comprising:

the refrigerator comprises an air duct assembly, a first air duct and a second air duct, wherein the first air duct is communicated with an air inlet, an air outlet and a first air return opening are formed in the side wall of the first air duct, the air outlet is used for being communicated with a storage compartment of the refrigerator, and the air inlet and the first air return opening are used for being communicated with an evaporation chamber of the refrigerator, wherein the evaporation chamber is provided with an evaporator;

and the air door is assembled on the air duct assembly, when the evaporator starts defrosting, the air door moves to a first position to close the air outlet and open the first air return opening, and when the evaporator stops defrosting, the air door moves to a second position to open the air outlet and close the first air return opening.

2. The chilled air duct of a refrigerator of claim 1, wherein the air duct assembly comprises:

the air duct seat is provided with the air inlet;

the air duct cover is used for being assembled with the air duct seat to form an accommodating space;

the first air duct pipe is arranged in the accommodating space, two ends of the first air duct pipe are respectively connected with the air duct base and the air duct cover, and are used for surrounding the air duct base and the air duct cover to form the first air duct, and the air outlet and the first air return opening are arranged on the first air duct pipe;

the air door is sleeved on the first air duct pipe and can move relative to the first air duct pipe.

3. The chilled air duct of claim 2, wherein the air outlet comprises a refrigerated air outlet proximate a first side of the air duct base for communicating with a refrigerated compartment of the refrigerator, the first side proximate the refrigerated compartment.

4. The refrigeration duct of claim 3, wherein the air outlet further comprises a first refrigeration air outlet and a second refrigeration air outlet, the first refrigeration air outlet and the second refrigeration air outlet being used for communicating with a refrigeration compartment of the refrigerator;

the first freezing air outlet and the second freezing air outlet are arranged at intervals and are arranged on one side opposite to the refrigerating air outlet.

5. The chilled air duct of claim 4, wherein the first return air inlet is disposed between the first chilled air outlet and the second chilled air outlet.

6. The chilled air duct of claim 5, wherein the damper is provided with a first opening, a second opening, and a third opening;

when the air door moves to the first position, the air door blocks the refrigeration air outlet, the first refrigeration air outlet and the second refrigeration air outlet, and the first air return port is used for communicating with the evaporation chamber through the second opening/the third opening;

when the air door moves to the second position, the air door blocks the first air return opening, the refrigerating air outlet is communicated with the refrigerating compartment through the first opening, the first freezing air outlet is communicated with the freezing compartment through the second opening, and the second freezing air outlet is communicated with the freezing compartment through the third opening.

7. The chilled air duct of a refrigerator of claim 5 or 6, wherein the air duct assembly further comprises a second air duct tube connected to the air duct base, the air duct cover, and the first air duct tube for enclosing the air duct base, the air duct cover, and the first air duct tube to form a second air duct, the first chilled air outlet communicating with the second air duct;

the air duct cover is used for forming a fourth opening in the second air duct part, and the second air duct is communicated with the freezing compartment through the fourth opening so that the first freezing air outlet is communicated with the freezing compartment;

the fourth openings are arranged in a plurality of mode, and the fourth openings are arranged at intervals.

8. The chilled air duct of a refrigerator of claim 5 or 6, wherein the air duct assembly further comprises a third air duct tube connected to the air duct base, the air duct cover and the first air duct tube for enclosing the air duct base, the air duct cover and the first air duct tube to form a third air duct, the second chilled air outlet communicating with the third air duct;

the air duct cover is used for forming the third air duct part and is provided with a fifth opening, and the third air duct is communicated with the freezing compartment through the fifth opening so that the second freezing air outlet is communicated with the freezing compartment;

the fifth openings are arranged in a plurality, and the fifth openings are arranged at intervals.

9. The refrigeration air duct of a refrigerator according to any one of claims 3 to 6, wherein said air duct base is provided with a second return air inlet, said first return air inlet being adapted to communicate with said evaporation chamber through said second return air inlet;

the second return air inlet is used for being close to the evaporator.

10. A refrigerator, comprising:

a storage compartment;

an evaporation chamber provided with an evaporator;

the chilled air duct of any one of claims 1-9, having a communication channel between the chilled air duct and the storage compartment, the evaporation chamber.