CN220959096U - Air duct structure for refrigerator and refrigerator - Google Patents

Abstract

The application relates to the technical field of refrigeration equipment, and discloses an air duct structure for a refrigerator and the refrigerator. The air duct structure for the refrigerator comprises a fixed part, a moving part and a driving piece. The fixed part comprises a plurality of first air inlets which are arranged at intervals. The movable part is attached to one side of the fixed part. The movable part comprises a plurality of second air inlets which are arranged at intervals, and the second air inlets are arranged corresponding to the first air inlets. The driving end of the driving piece is connected with the moving part. The driving piece drives the moving part to move relative to the fixed part, so that the second air inlet and the first air inlet are switched between a staggered blocking state and a corresponding conducting state. The air duct structure for the refrigerator improves the uniformity of cold air delivery and the uniformity of temperature distribution in a storage space.

Description

Air duct structure for refrigerator and refrigerator

Technical Field

The application relates to the technical field of refrigeration equipment, in particular to an air duct structure for a refrigerator and the refrigerator.

Background

Currently, air-cooled refrigerators include at least an evaporator, a blower, an air duct, and one or more storage compartments. The refrigerating principle of the air-cooled refrigerator is that after the air is cooled by the heat exchange of the evaporator, cold air is transmitted into the storage chamber by the fan and the air duct, and the cold air exchanges heat with the air and articles in the storage chamber to reduce the temperature in the storage chamber.

In the related art, an air-cooled refrigerator comprises a refrigerator body, a door body and an air channel, wherein the refrigerator body and the door body enclose a storage room. The air duct comprises a plurality of air inlets which are centrally positioned on two sides of the rear side wall of the box body. Cold air flows into the storage chamber from the air inlet along the direction from the rear side wall of the box body to the door body.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

The air inlets of the air-cooled refrigerator in the related art are positioned on two sides of the rear side wall of the refrigerator body, and the positions of the air inlets are concentrated, so that the refrigerator has defects in the aspects of uniformity of cold air conveying and uniformity of temperature distribution in the storage chamber, and the temperature difference in the storage chamber of the refrigerator is larger.

For example, after a large amount of food is put into the refrigerating chamber of the air-cooled refrigerator, the air inlets are concentrated on two sides of the rear side wall of the refrigerator body and the shielding effect of the food, so that the cold air is unevenly conveyed, and the temperature distribution in the refrigerating chamber is uneven. That is, the temperature of the portion in the refrigerating chamber is high, and the temperature of the portion is low. The food at the position with higher temperature in the refrigerating chamber is slow in cooling speed and easy to deteriorate.

It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the application and thus may include information that does not form the prior art that is already known to those of ordinary skill in the art.

Disclosure of utility model

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview, and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended as a prelude to the more detailed description that follows.

The embodiment of the disclosure provides an air duct structure for a refrigerator and the refrigerator, which improve the uniformity of conveying cold air into a storage space of the refrigerator and solve the problem that the refrigerator in the related art has defects in the aspects of uniformity of conveying the cold air and uniformity of temperature distribution in the storage room.

In some embodiments, there is provided a duct structure for a refrigerator, including: the fixed part comprises a plurality of first air inlets which are arranged at intervals; the movable part is arranged on one side of the fixed part in a bonding way, and comprises a plurality of second air inlets which are arranged at intervals, and the second air inlets are arranged corresponding to the first air inlets; the driving end of the driving piece is connected with the moving part; the driving piece drives the moving part to move relative to the fixed part, so that the second air inlet and the first air inlet are switched between a staggered blocking state and a corresponding conducting state.

Optionally, the air duct structure for the refrigerator further includes: the air duct comprises a ventilation opening, and the moving part is positioned in the air duct; the air door corresponds to the ventilation opening, one side of the air door is connected to the driving end of the driving piece, the other side of the air door is connected to the moving part, and the driving piece drives the air door to rotate and drives the moving part to move relative to the fixed part; when the driving piece drives the air door to rotate and cover the ventilation opening, the second air inlet and the first air inlet are in a staggered blocking state; when the driving piece drives the air door to rotate to open the ventilation opening, the second air inlet and the first air inlet are in corresponding conduction states.

Optionally, the air duct structure for the refrigerator further includes: the sliding groove is formed in the side wall of the air duct and extends along the moving direction of the moving part; the sliding column is arranged on the side surface of the moving part and is in sliding fit with the sliding groove; when the moving part moves relative to the fixed part, the sliding column slides along the sliding groove.

Optionally, the air duct structure for the refrigerator further includes: one end of the connecting rod is rotationally connected with the air door, and the other end of the connecting rod is rotationally connected with the moving part.

Optionally, the second air inlet and the first air inlet are both of a strip-shaped structure and extend along the horizontal direction.

Optionally, the size of the second air inlet is greater than or equal to the size of the first air inlet along the horizontal extending direction.

Optionally, the air duct structure for the refrigerator further includes: the avoiding groove is formed in one side of the fixed part facing the moving part.

In some embodiments, there is provided a refrigerator including: a case defining a storage space including a rear sidewall; the air duct structure for a refrigerator as in any one of the above embodiments, wherein the fixing portion is disposed on the rear sidewall such that the plurality of first air inlets are spaced apart from the rear sidewall.

Optionally, the refrigerator further includes: a temperature sensor for detecting a temperature in the storage space; the control output end of the controller is connected with the control end of the driving piece, and the information input end of the controller is connected with the information output end of the temperature sensor; the controller can acquire the temperature in the storage space detected by the temperature sensor, and control the driving piece to work according to the temperature in the storage space, so that the second air inlet and the first air inlet are switched between a staggered blocking state and a corresponding conducting state.

Optionally, the refrigerator further includes: the evaporator is arranged in the air duct of the air duct structure of the refrigerator; the fan is arranged at one side of the evaporator and used for sending the cool air subjected to heat exchange and temperature reduction by the evaporator into the storage space.

The air duct structure for the refrigerator and the refrigerator provided by the embodiment of the disclosure can realize the following technical effects:

According to the air duct structure for the refrigerator, layering and uniform distribution of the first air inlets are achieved through the spaced arrangement of the first air inlets, so that uniformity of cold air conveying is improved, and uniformity of temperature distribution in a storage space is improved. And moreover, the first air inlets supply air simultaneously, so that the air supply area is increased, and the cooling speed in the storage space is improved. The movable part moves relative to the fixed part, so that the second air inlet and the first air inlet are switched between a staggered blocking state and a corresponding conducting state. Specifically, when cold air is not conveyed through the staggered blocking state, all or part of the first air inlets are blocked, and the attractiveness is improved. When the cold air is conveyed by corresponding on state, the air supply area is increased, and the cooling speed is improved.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which like reference numerals refer to similar elements, and in which:

fig. 1 is a schematic side view of a refrigerator with a second air inlet and a first air inlet in a staggered blocking state according to an embodiment of the present disclosure;

fig. 2 is a schematic front view of a refrigerator with a second air inlet and a first air inlet in a staggered blocking state according to an embodiment of the disclosure;

fig. 3 is a schematic side view of a refrigerator with a second air inlet and a first air inlet in corresponding conduction states according to an embodiment of the present disclosure;

Fig. 4 is a schematic front view of a refrigerator with a second air inlet and a first air inlet in corresponding conduction states according to an embodiment of the present disclosure;

FIG. 5 is a schematic illustration of a damper opening vent provided by an embodiment of the present disclosure;

Fig. 6 is a schematic view of a damper cover provided in an embodiment of the present disclosure disposed at a ventilation opening.

Reference numerals:

10: an air duct structure for a refrigerator; 11: an air duct; 111: a vent; 12: a damper; 13: a chute; 14: a connecting rod; 15: an avoidance groove; 16: a driving member;

20: a fixing part; 21: a first air inlet;

30: a moving part; 31: a second air inlet;

40: a refrigerator; 41: a case; 42: a storage space; 43: a rear sidewall; 44: an evaporator; 45: a blower.

Detailed Description

So that the manner in which the features and techniques of the disclosed embodiments can be understood in more detail, a more particular description of the embodiments of the disclosure, briefly summarized below, may be had by reference to the appended drawings, which are not intended to be limiting of the embodiments of the disclosure. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may still be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawing.

The terms first, second and the like in the description and in the claims of the embodiments of the disclosure and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe embodiments of the present disclosure. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are used primarily to better describe embodiments of the present disclosure and embodiments thereof and are not intended to limit the indicated device, element, or component to a particular orientation or to be constructed and operated in a particular orientation. Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the embodiments of the present disclosure will be understood by those of ordinary skill in the art in view of the specific circumstances.

In addition, the terms "disposed," "connected," "secured" and "affixed" are to be construed broadly. For example, "connected" may be in a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the embodiments of the present disclosure may be understood by those of ordinary skill in the art according to specific circumstances.

The term "plurality" means two or more, unless otherwise indicated.

In the embodiment of the present disclosure, the character "/" indicates that the front and rear objects are an or relationship. For example, A/B represents: a or B.

The term "and/or" is an associative relationship that describes an object, meaning that there may be three relationships. For example, a and/or B, represent: a or B, or, A and B.

It should be noted that, without conflict, the embodiments of the present disclosure and features of the embodiments may be combined with each other.

As shown in fig. 1 to 6, the embodiment of the present disclosure provides an air duct 11 structure 10 for a refrigerator, the air duct 11 structure 10 for a refrigerator including a fixed portion 20, a moving portion 30, and a driving member 16. The fixed portion 20 includes a plurality of first air inlets 21 arranged at intervals. The moving part 30 is attached to one side of the fixed part 20. The moving part 30 includes a plurality of second air inlets 31 arranged at intervals, and the second air inlets 31 are disposed corresponding to the first air inlets 21. The driving end of the driving member 16 is connected to the moving portion 30. The driving member 16 drives the moving portion 30 to move relative to the fixed portion 20, so that the second air inlet 31 and the first air inlet 21 are switched between the staggered blocking state and the corresponding conducting state.

In this embodiment, the plurality of first air inlets 21 are arranged at intervals, so as to realize layering and uniform distribution of the plurality of first air inlets 21, so as to improve uniformity of cold air delivery and uniformity of temperature distribution. Moreover, the plurality of first air inlets 21 supply air simultaneously, increasing the air supply area, and further increasing the air supply speed to increase the cooling speed.

In the present embodiment, the moving portion 30 moves relative to the fixed portion 20, so that the second air inlet 31 and the first air inlet 21 are switched between the staggered blocking state and the corresponding conducting state. Specifically, the staggered blocking state realizes that no cold air is delivered, and all or part of the first air inlets 21 are blocked, so that the attractiveness is improved. And cold air is conveyed through the corresponding conduction state, so that the air supply area is increased, and the air supply speed is improved.

Optionally, the driver 16 comprises a motor.

As shown in connection with fig. 1-6, in some embodiments, the air duct 11 structure 10 for a refrigerator further includes an air duct 11 and a damper 12. The air duct 11 includes a ventilation opening 111, and the moving part 30 is located in the air duct 11. The damper 12 corresponds to the ventilation opening 111. One side of the air door 12 is connected to the driving end of the driving member 16, the other side of the air door 12 is connected to the moving portion 30, and the driving member 16 drives the air door 12 to rotate and drives the moving portion 30 to move relative to the fixed portion 20. When the driving member 16 drives the air door 12 to rotate to cover the ventilation opening 111, the second air inlet 31 and the first air inlet 21 are in a staggered blocking state. When the driving member 16 drives the damper 12 to rotate to open the ventilation opening 111, the second air inlet 31 and the first air inlet 21 are in a corresponding conduction state.

In this embodiment, the damper 12 corresponds to the vent 111, so that the damper 12 can cover the vent 111 or open the vent 111. One side of the air door 12 is connected to the driving end of the driving member 16, and the other side of the air door 12 is connected to the moving portion 30, so that the air door 12 and the moving portion 30 are linked. Specifically, the driving member 16 drives the air door 12 to rotate relative to the ventilation opening 111, and the moving portion 30 is driven to move relative to the fixed portion 20 while the air door 12 rotates, so that the second air inlet 31 and the first air inlet 21 are switched between the staggered blocking state and the corresponding conducting state.

In this embodiment, when the damper 12 is covered on the ventilation opening 111, the air is not sent to the second air inlet 31 and the first air inlet 21 due to the blocking effect of the damper 12, and the second air inlet 31 and the first air inlet 21 are in a staggered blocking state. The movable part 30 moves relative to the fixed part 20, so that the second air inlet 31 and the first air inlet 21 are in staggered positions, and a staggered blocking state is formed. In the staggered blocking state, all or part of the first air inlets 21 are blocked, so that the attractiveness is improved.

In this embodiment, when the ventilation door 12 rotates to open the ventilation opening 111, cool air is sent to the second air inlet 31 and the first air inlet 21, and at this time, the second air inlet 31 and the first air inlet 21 are in a corresponding conduction state. The moving part 30 moves relative to the fixed part 20, so that the second air inlet 31 and the first air inlet 21 are in a conducting position, and a corresponding conducting state is formed. When the second air inlet 31 and the first air inlet 21 are conducted in the corresponding conduction state, layered and uniform air supply is realized, the uniformity of cold air conveying is improved, and the uniformity of internal temperature distribution is improved.

Alternatively, the driving member 16 is fixedly disposed on a side wall of the air duct 11 to support the driving member 16 for stable operation.

Optionally, the air duct 11 structure 10 for a refrigerator further includes a rotating shaft, one end of the rotating shaft is connected with the driving end of the driving member 16, the other end of the rotating shaft is rotatably disposed on a side wall of the air duct 11, and the air door 12 is fixedly disposed on a side surface of the rotating shaft. The driving end of the driving member 16 drives the rotating shaft to rotate, and the rotating shaft drives the air door 12 to rotate, so that the air door 12 can stably rotate relative to the ventilation opening 111.

As shown in connection with fig. 1, in some embodiments, the air duct 11 structure 10 for a refrigerator further includes a chute 13 and a spool. The chute 13 is opened at a side wall of the air duct 11 and extends along a moving direction of the moving portion 30. The sliding column is arranged on the side surface of the moving part 30 and is in sliding fit with the sliding groove 13. When the moving portion 30 moves relative to the fixed portion 20, the spool slides along the chute 13.

In this embodiment, the sliding column slides along the sliding groove 13 to limit and guide the moving direction of the moving portion 30, so as to improve the moving stability of the moving portion 30, and improve the stability of the second air inlet 31 and the first air inlet 21 in the staggered blocking state and the corresponding conducting state.

As shown in connection with fig. 1-6, in some embodiments, the air chute 11 structure 10 for a refrigerator further includes a link 14. One end of the link 14 is rotatably connected to the damper 12, and the other end of the link 14 is rotatably connected to the moving part 30.

In this embodiment, when the driving member 16 drives the damper 12 to rotate relative to the ventilation opening 111, the movable portion 30 moves linearly relative to the fixed portion 20 by rotationally connecting one end of the link 14 to the damper 12 and rotationally connecting the other end to the movable portion 30.

Referring to fig. 1 to 4, in some embodiments, the second air inlet 31 and the first air inlet 21 are both elongated structures and extend along a horizontal direction.

In this embodiment, the first air inlets 21 with a plurality of strip structures are arranged at intervals, so as to realize layering and uniform distribution of the first air inlets 21. Through the second air inlets 31 interval arrangement of a plurality of long strip structures, improve the homogeneity of carrying cold wind, increase air supply area, and then improve cooling rate.

In some embodiments, the second air inlet 31 is larger in size than the first air inlet 21 along the horizontal extending direction. Specifically, the length of the second air inlet 31 is greater than the length of the first air inlet 21.

In this embodiment, the size of the second air inlet 31 is larger than that of the first air inlet 21, so as to improve the air supply strength.

As shown in connection with fig. 1 to 4, in some embodiments, the second air inlet 31 has a size equal to that of the first air inlet 21 along the horizontal extending direction. Specifically, the length of the second air inlet 31 is equal to the length of the first air inlet 21.

In this embodiment, the size of the second air inlet 31 is equal to the size of the first air inlet 21, so as to realize smooth cold air transportation.

As shown in connection with fig. 1 and 3, in some embodiments, the air chute 11 structure 10 for a refrigerator further includes a relief groove 15. The escape groove 15 is formed in a side of the fixed portion 20 facing the moving portion 30.

In this embodiment, an avoidance space is provided for rotation of the damper 12 through the avoidance groove 15, and smooth conveyance of cool air is achieved when the ventilation opening 111 is opened.

As shown in conjunction with fig. 1 to 6, the embodiment of the present disclosure provides a refrigerator 40, the refrigerator 40 including a cabinet 41 and the duct 11 structure 10 for a refrigerator as in any of the previous embodiments. The case 41 defines a storage space 42. The case 41 includes a rear sidewall 43. The fixing portion 20 is disposed on the rear sidewall 43 such that the plurality of first air inlets 21 are spaced apart from the rear sidewall 43.

In this embodiment, the plurality of first air inlets 21 are arranged at intervals on the rear side wall 43 of the refrigerator 40, and the uniformity of cold air delivery and the uniformity of temperature distribution in the storage space 42 can be improved by layering and uniformly distributing the plurality of first air inlets 21. Moreover, the plurality of first air inlets 21 simultaneously supply air, increasing an air supply area, and further increasing an air supply speed to increase a cooling speed in the storage space 42.

Alternatively, the refrigerator 40 includes an air-cooled refrigerator.

As shown in connection with fig. 1 to 4, the fixing portion 20 is alternatively formed as a unitary structure with the rear sidewall 43. The moving part 30 is provided in the duct 11. The moving part 30 is located at the rear side of the fixed part 20.

In the present embodiment, the moving portion 30 moves relative to the fixed portion 20, so that the second air inlet 31 and the first air inlet 21 are switched between the staggered blocking state and the corresponding conducting state. By the staggered blocking state, no cold air is conveyed, all or part of the first air inlets 21 are blocked, and the attractiveness is improved. And cold air is conveyed through the corresponding conduction state, so that the air supply area is increased, and the air supply speed and the cooling speed are improved.

In some embodiments, the refrigerator 40 further includes a temperature sensor and a controller. The temperature sensor is used to detect the temperature in the storage space 42. The control output end of the controller is connected with the control end of the driving piece 16, and the information input end of the controller is connected with the information output end of the temperature sensor. The controller can acquire the temperature in the storage space 42 detected by the temperature sensor, and control the driving member 16 to work according to the temperature in the storage space 42, so that the second air inlet 31 and the first air inlet 21 are switched between the staggered blocking state and the corresponding conducting state.

In the present embodiment, the temperature in the storage space 42 is detected by a temperature sensor. The controller controls the driving part 16 to work according to the temperature in the storage space 42 detected by the temperature sensor, so that the second air inlet 31 and the first air inlet 21 are switched between the staggered blocking state and the corresponding conducting state, and the temperature in the storage space 42 is automatically adjusted.

For example, when the temperature in the storage space 42 detected by the temperature sensor is higher than the set temperature, the controller controls the driving member 16 to operate, and the driving member 16 drives the damper 12 to rotate to open the ventilation opening 111, so that the second air inlet 31 and the first air inlet 21 are in a corresponding conduction state. The cool air is introduced into the storage space 42 through the ventilation opening 111, the second air inlet 31, and the first air inlet 21 to reduce the temperature in the storage space 42. When the temperature in the storage space 42 detected by the temperature sensor is equal to the set temperature, the controller controls the driving piece 16 to work, and the driving piece 16 drives the air door 12 to rotate so as to cover the ventilation opening 111, so that the second air inlet 31 and the first air inlet 21 are in a staggered blocking state. The cool air is not delivered into the storage space 42.

As shown in connection with fig. 1-4, in some embodiments, the refrigerator 40 further includes an evaporator 44 and a blower 45. The evaporator 44 is disposed within the air chute 11 of the air chute 11 structure 10 for the refrigerator. The fan 45 is disposed at one side of the evaporator 44, and the fan 45 is used for sending cool air cooled by heat exchange of the evaporator 44 into the storage space 42.

In this embodiment, the air is sucked by the fan 45 after being cooled by the evaporator 44 to form an air flow, and then is conveyed into the storage space 42 through the air duct 11, and the low-temperature air flow exchanges heat with the air and the articles in the storage space 42 to reduce the temperature in the storage space 42.

Optionally, a control output of the controller is connected to a control end of the fan 45 to control the fan 45 to operate.

Illustratively, the user places food into the storage space 42 of the refrigerator 40. When the refrigerator 40 starts to refrigerate, the controller controls the fan 45 to rotate and controls the driving piece 16 to work, so that the driving piece 16 drives the air door 12 to rotate to open the ventilation opening 111, and the second air inlet 31 and the first air inlet 21 are in corresponding conduction states. The plurality of first air inlets 21 simultaneously deliver cool air into the storage space 42, so that the refrigerating temperature is more uniform and the refrigerating speed is faster. When the temperature in the storage space 42 reaches the set temperature, the controller controls the fan 45 to stop rotating and controls the driving member 16 to operate, and the driving member 16 drives the air door 12 to rotate so as to cover the ventilation opening 111, so that the second air inlet 31 and the first air inlet 21 are in a staggered blocking state.

Optionally, the refrigerator 40 further includes a door body. The door is provided in the case 41. The door can rotate relative to the case 41.

For example, when the refrigerator 40 is refrigerating, if the user opens the door, after receiving an instruction for opening the door of the refrigerator 40, the controller controls the fan 45 to stop rotating and controls the driving member 16 to operate, and the driving member 16 drives the air door 12 to rotate to cover the ventilation opening 111, so that the second air inlet 31 and the first air inlet 21 are in a staggered blocking state, and further the user cannot see the corresponding conducting state of the second air inlet 31 and the first air inlet 21, thereby improving the aesthetic degree. After the user closes the door and the controller receives the command to close the door of the refrigerator 40, the refrigerator 40 resumes cooling.

The above description and the drawings illustrate embodiments of the disclosure sufficiently to enable those skilled in the art to practice them. Other embodiments may include structural and other modifications. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in, or substituted for, those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. An air duct structure for a refrigerator, comprising:

The fixed part comprises a plurality of first air inlets which are arranged at intervals;

The movable part is arranged on one side of the fixed part in a bonding way and comprises a plurality of second air inlets which are arranged at intervals, and the second air inlets are arranged corresponding to the first air inlets;

the driving end of the driving piece is connected with the moving part;

the driving piece drives the moving part to move relative to the fixed part, so that the second air inlet and the first air inlet are switched between a staggered blocking state and a corresponding conducting state.

2. The duct structure for a refrigerator according to claim 1, further comprising:

The air duct comprises a ventilation opening, and the moving part is positioned in the air duct;

The air door corresponds to the ventilation opening, one side of the air door is connected to the driving end of the driving piece, the other side of the air door is connected to the moving part, and the driving piece drives the air door to rotate and drives the moving part to move relative to the fixed part;

when the driving piece drives the air door to rotate and cover the ventilation opening, the second air inlet and the first air inlet are in a staggered blocking state; when the driving piece drives the air door to rotate to open the ventilation opening, the second air inlet and the first air inlet are in corresponding conduction states.

3. The duct structure for a refrigerator according to claim 2, further comprising:

The sliding groove is formed in the side wall of the air duct and extends along the moving direction of the moving part;

the sliding column is arranged on the side surface of the moving part and is in sliding fit with the sliding groove;

When the moving part moves relative to the fixed part, the sliding column slides along the sliding groove.

4. The duct structure for a refrigerator according to claim 2, further comprising:

one end of the connecting rod is rotationally connected with the air door, and the other end of the connecting rod is rotationally connected with the moving part.

5. The air duct structure for a refrigerator according to any one of claims 1 to 4, wherein,

The second air inlet and the first air inlet are both of strip-shaped structures and extend along the horizontal direction.

6. The air duct structure for a refrigerator as claimed in claim 5, wherein,

Along the horizontal extending direction, the size of the second air inlet is larger than or equal to that of the first air inlet.

7. The duct structure for a refrigerator according to any one of claims 1 to 4, further comprising:

the avoiding groove is formed in one side of the fixed part facing the moving part.

8. A refrigerator, comprising:

A case defining a storage space including a rear sidewall;

The duct structure for a refrigerator of any one of claims 1 to 7, wherein the fixing portion is provided at the rear sidewall such that the plurality of first air inlets are spaced apart at the rear sidewall.

9. The refrigerator of claim 8, further comprising:

a temperature sensor for detecting a temperature in the storage space;

The control output end of the controller is connected with the control end of the driving piece, and the information input end of the controller is connected with the information output end of the temperature sensor; the controller can acquire the temperature in the storage space detected by the temperature sensor, and control the driving piece to work according to the temperature in the storage space, so that the second air inlet and the first air inlet are switched between a staggered blocking state and a corresponding conducting state.

10. The refrigerator of claim 8, further comprising:

the evaporator is arranged in the air duct of the air duct structure of the refrigerator;

The fan is arranged at one side of the evaporator and used for sending the cool air subjected to heat exchange and temperature reduction by the evaporator into the storage space.