Air door structure and refrigerator

Abstract

The invention provides an air door structure and a refrigerator, the air door structure comprises an air door opening and closing mechanism, the air door opening and closing mechanism is used for opening or closing an air door, the air door opening and closing mechanism comprises an adjusting assembly, and the adjusting assembly is internally provided with an adjusting opening used for being communicated with an air opening so that airflow can pass through the adjusting opening; the power mechanism is used for providing power for the air door opening and closing mechanism; the air door control mechanism detects the area of the adjusting opening and the air speed passing through the adjusting opening and drives the adjusting assembly to move according to the area of the adjusting opening and the air speed passing through the adjusting opening so as to adjust the air quantity entering the adjusting opening.

Description

Technical Field

[0001] The present invention relates to the technical field of air doors, and in particular to an air door structure and a refrigerator. Background Art

[0002] The refrigerator damper is a component used to control the flow of cold air between the refrigerator and the freezer. It ensures the temperature balance between the refrigerator and the freezer by adjusting the opening and closing degree of the damper.

[0003] At present, most refrigerators on the market use ordinary shaft-type dampers, which can only perform a single ventilation duct damper closing process. They cannot control the air duct area and have air duct sealing problems, which easily causes air volume loss and waste.

[0004] Therefore, the prior art needs to be further developed. Summary of the invention

[0005] The purpose of the present invention is to overcome the above technical deficiencies and provide a damper structure and a refrigerator to solve the technical problem that most refrigerators on the market currently use ordinary shaft-type dampers, which can only perform a single ventilation duct damper closing process, cannot control the duct area, have duct sealing problems, and easily cause air volume loss and waste.

[0006] In order to achieve the above technical objectives, the present invention adopts the following technical solutions: a damper structure is provided, comprising:

[0007] The damper opening and closing mechanism is used to open or close the damper, and the damper opening and closing mechanism includes:

[0008] An adjusting component, wherein the adjusting component has an adjusting port for communicating with the air outlet so that air flows through the adjusting port;

[0009] A power mechanism, the power mechanism is used to provide power to the damper opening and closing mechanism;

[0010] The damper control mechanism detects the area of ​​the regulating port and the wind speed passing through the regulating port, and drives the regulating component to move according to the area of ​​the regulating port and the wind speed passing through the regulating port to adjust the air volume entering the regulating port.

[0011] The adjustment assembly includes a plurality of blade components, and the plurality of blade components are movably arranged to enclose the adjustment port between the plurality of blade components.

[0012] The blade component includes a first fan-shaped damper blade, a second fan-shaped damper blade, a third fan-shaped damper blade and a fourth fan-shaped damper blade, and the angles between the two straight sides of the first fan-shaped damper blade, the second fan-shaped damper blade, the third fan-shaped damper blade and the fourth fan-shaped damper blade are all 90°.

[0013] The damper opening and closing mechanism also includes:

[0014] A fixed wedge, the fixed wedge is fixedly arranged on one side of the blade component; the fixed wedge comprises a first fixed wedge and a second fixed wedge, the first fixed wedge and the second fixed wedge are arranged at intervals;

[0015] a gear rotating disk, the gear rotating disk being in sliding contact with the blade member;

[0016] a first limiting groove, the first limiting groove is located on the gear rotating disk and passes through the gear rotating disk, and the first fixing wedge slides through the first limiting groove;

[0017] a second limiting groove, the second limiting groove is located on the gear rotating disk and passes through the gear rotating disk, and the second fixing wedge slides through the second limiting groove;

[0018] When the gear rotating disk rotates, the first fixed wedge slides in the first limiting groove, and the second fixed wedge slides in the second limiting groove, thereby driving the blade component to slide along the gear rotating disk.

[0019] The first fixed wedge comprises: a fixed rod, the fixed rod being fixedly connected to one side of the blade component;

[0020] A sliding round head is fixedly arranged at the other end of the fixing rod.

[0021] It also includes a clamping gasket, which is located on the side of the gear turntable away from the blade component and is coaxially arranged with the gear turntable. The clamping gasket is rotatably connected to the gear turntable. The clamping gasket is provided with a third limiting groove near the gear turntable. The third limiting groove enables the sliding round head to slide within the internal limit position. A ventilation mechanism is fixedly arranged on the other side of the clamping gasket.

[0022] The ventilation mechanism comprises: a ventilation duct, the ventilation duct is located on a side of the clamping gasket away from the gear rotating disk;

[0023] A fan is located at the other side of the ventilation duct and is used for conveying airflow.

[0024] The damper control mechanism includes a sensor, and the sensor is located on a side of the fan away from the ventilation duct;

[0025] A sensor box body, the sensor box body is installed on the other side of the sensor;

[0026] The damper control mechanism detects the area of ​​the regulating port and the wind speed passing through the port through a sensor. When the temperature and humidity are higher than the set value, the sensor sends a signal to the outside so that the fan and the blade components are closed.

[0027] The first limiting grooves are arranged in a ring array around the axis of the gear rotating disk, and the first limiting grooves are arranged equidistantly; and / or,

[0028] The second limiting grooves are radially distributed with respect to the axis of the gear rotating disk and are located between the two first limiting grooves, and the second limiting grooves are arranged equidistantly; and / or,

[0029] The third limiting grooves are arranged in a ring array with the axis of the clamping gasket and correspond to the positions of the first limiting grooves.

[0030] The power mechanism comprises a driving motor, which is fixedly mounted on one side of the ventilation duct close to the gear turntable, and the other side of the driving motor is fixedly connected to the driving gear, which is meshed with the gear turntable for transmission.

[0031] A refrigerator is provided with the damper structure in the technical solution.

[0032] Beneficial effects:

[0033] 1. Detecting the area of ​​the regulating port and the wind speed passing through the regulating port through the damper control mechanism, and driving the regulating component to move according to the area of ​​the regulating port and the wind speed passing through the regulating port to adjust the air volume entering the regulating port;

[0034] 2. The gear rotating disk is driven to rotate by a power mechanism, so that the first fixed wedge slides in the first limiting groove, and the second fixed wedge slides in the second limiting groove, thereby driving the blade component to slide along the gear rotating disk to achieve the purpose of adjusting the adjustment port;

[0035] 3. By driving the gear to drive the gear turntable to rotate, the adjustment component can more accurately control the area of ​​the adjustment port, thereby opening or closing the adjustment port. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is an exploded view of the overall structure of a damper structure used in an embodiment of the present invention;

[0037] Figure 2 It is a schematic diagram of the overall structure of a driving gear and a gear rotating disk of a damper structure adopted in an embodiment of the present invention;

[0038] Figure 3 It is a schematic diagram of the overall structure of a power mechanism and a ventilation mechanism of a damper structure adopted in an embodiment of the present invention;

[0039] Figure 4 It is a schematic diagram of the opening and closing structure of a driving and adjusting component of a damper structure adopted in an embodiment of the present invention;

[0040] Figure 5 Schematic diagram of a semi-closed structure of a driving and adjusting component of a damper structure used in an embodiment of the present invention;

[0041] Figure 6 The embodiment of the present invention adopts Figure 1 A is an enlarged schematic diagram;

[0042] Figure 7 is a schematic diagram of the overall structure of a first fixed wedge in a damper structure adopted in an embodiment of the present invention;

[0043] Figure 8 Schematic diagram of a gear turntable structure of a damper structure used in an embodiment of the present invention;

[0044] Fig. 9 Schematic diagram of a clamping gasket structure of a damper structure used in an embodiment of the present invention;

[0045] Fig.10 It is a schematic diagram of a fan and a damper control mechanism structure of a damper structure used in an embodiment of the present invention;

[0046] Fig.11 The embodiment of the present invention adopts Figure 3 The enlarged schematic diagram of point B in FIG.

[0047] Fig.12 is a schematic diagram of closing an adjustment port of a damper structure used in an embodiment of the present invention;

[0048] Fig.13 This is a schematic diagram of a half-open regulating port of a damper structure used in an embodiment of the present invention;

[0049] Fig.14 It is a schematic diagram of a fully opened regulating port of a damper structure adopted in an embodiment of the present invention.

[0050] The above drawings include the following reference numerals:

[0051] 1. Ventilation mechanism; 11. Ventilation duct; 12. Fan;

[0052] 2. Air door opening and closing mechanism; 21. Adjustment component;

[0053] 211, blade component; 2111, fan-shaped damper blade; 2112, second fan-shaped damper blade; 2113, third fan-shaped damper blade; 2114, fourth fan-shaped damper blade;

[0054] 22, fixed wedge; 221, first fixed wedge; 2211, fixed rod; 2212, sliding round head;

[0055] 222, second fixed wedge;

[0056] 23. Gear turntable; 24. First limiting groove; 25. Second limiting groove;

[0057] 3. Power mechanism; 31. Driving gear; 32. Driving motor;

[0058] 4. air door control mechanism; 41. sensor; 42. sensor box;

[0059] 5. Adjustment port;

[0060] 6. Tighten the gasket. DETAILED DESCRIPTION

[0061] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0062] According to an embodiment of the present invention, a damper structure is provided. Figures 1 to 14 , including: a damper opening and closing mechanism 2, the damper opening and closing mechanism 2 is used to open or close the damper, the damper opening and closing mechanism 2 includes: an adjusting component 21, the adjusting component 21 has an adjusting port 5 for communicating with the air outlet, so that the airflow passes through the adjusting port 5; a power mechanism 3, the power mechanism 3 is used to provide power to the damper opening and closing mechanism; a damper control mechanism 4, the damper control mechanism 4 detects the area of ​​the adjusting port 5 and the wind speed passing through the adjusting port 5, and drives the adjusting component 21 to move according to the area of ​​the adjusting port 5 and the wind speed passing through the adjusting port 5, so as to adjust the air volume entering the adjusting port 5.

[0063] The area of ​​the regulating port 5 and the wind speed passing through the regulating port 5 are detected by the damper control mechanism 4 , and the regulating component 21 is driven to move according to the area of ​​the regulating port 5 and the wind speed passing through the regulating port 5 to adjust the air volume entering the regulating port 5 .

[0064] See also Figure 4 and Figure 5 The adjustment component 21 includes a plurality of blade components 211 , and the plurality of blade components 211 can be movably arranged to enclose the adjustment port 5 between the plurality of blade components 211 .

[0065] The regulating port 5 can be opened or closed by movably arranging the plurality of blade members 211 .

[0066] See also Figure 4 and Figure 5 The blade component 211 includes a first fan-shaped damper blade 2111, a second fan-shaped damper blade 2112, a third fan-shaped damper blade 2113 and a fourth fan-shaped damper blade 2114, and the angles between the two straight sides of the first fan-shaped damper blade 2111, the second fan-shaped damper blade 2112, the third fan-shaped damper blade 2113 and the fourth fan-shaped damper blade 2114 are all 90°.

[0067] By arranging the plurality of blade components 211 to be movable, an adjustment opening 5 can be formed between the plurality of blade components 211 , and the adjustment opening 5 is closed in a square shape, thereby controlling the air door switch.

[0068] See also Figure 1 , Figure 4 , Figure 5 and Figure 6 The damper opening and closing mechanism 2 further includes: a fixed wedge 22, the fixed wedge 22 is fixedly arranged on one side of the blade component 211; the fixed wedge 22 includes a first fixed wedge 221 and a second fixed wedge 222, the first fixed wedge 221 and the second fixed wedge 222 are arranged at intervals;

[0069] A gear rotating disk 23, wherein the gear rotating disk 23 is in sliding contact with the blade component 211;

[0070] A first limiting groove 24, wherein the first limiting groove 24 is located on the gear rotating disk 23 and passes through the gear rotating disk 23, and the first fixing wedge 221 passes through and slides in the first limiting groove 24;

[0071] A second limiting groove 25, wherein the second limiting groove 25 is located on the gear rotating disk 23 and passes through the gear rotating disk 23, and the second fixing wedge 222 slides through the second limiting groove 25;

[0072] When the gear rotating disk 23 rotates, the first fixed wedge 221 slides in the first limiting groove 24 , and the second fixed wedge 222 slides in the second limiting groove 25 , thereby driving the blade component 211 to slide along the gear rotating disk 23 .

[0073] The blade component 211 cooperates with the gear turntable 23 and the driving gear 31 through the fixed wedge 22. During the rotation of the gear turntable 23, the blade component 211 moves in the first limit groove 24 and the second limit groove 25 through the first fixed wedge 221 and the second fixed wedge 222 respectively, so that the middle of the blade component 211 is closed in a square shape, thereby controlling the switch of the regulating port 5.

[0074] See also Figure 6 and Figure 7 , the first fixed wedge 221 includes: a fixed rod 2211, the fixed rod 2211 is fixedly connected to one side of the blade component 211;

[0075] The sliding round head 2212 is fixedly disposed at the other end of the fixing rod 2211 .

[0076] The sliding round head 2212 can slide in the third limiting groove to prevent the first fixed wedge 221 from being disengaged.

[0077] See also Figure 1 , Figure 5 , and also includes a clamping gasket 6, which is located on the side of the gear turntable 23 away from the blade component 211 and is coaxially arranged with the gear turntable 23, the clamping gasket 6 is rotatably connected to the gear turntable 23, and the clamping gasket 6 is provided with a third limiting groove near the gear turntable 23, and the third limiting groove enables the sliding round head 2212 to slide in a limited position inside, and a ventilation mechanism 1 is fixedly arranged on the other side of the clamping gasket 6.

[0078] The ventilation duct 11 and the gear turntable 23 are connected by the clamping gasket 6, and the first fixed wedge 221 can slide within the third limiting groove of the clamping gasket 6.

[0079] See also Figure 1 , the ventilation mechanism 1 comprises: a ventilation duct 11, the ventilation duct 11 is located on a side of the clamping gasket 6 away from the gear turntable 23;

[0080] The fan 12 is located at the other side of the ventilation duct 11. The fan 12 is used to convey airflow. The fan 12 is powered by a power supply part of the refrigerator.

[0081] The ventilation duct 11 and the fan 12 cooperate to deliver airflow to the refrigerator compartment.

[0082] See also Figure 1 , Fig.12 , Fig.13 and Fig.14The damper control mechanism 4 includes a sensor 41, the sensor 41 includes a temperature and humidity sensor and a wind speed sensor, and the sensor 41 is located on a side of the fan 12 away from the ventilation duct 11;

[0083] A sensor box body 42, wherein the sensor box body 42 is installed on the other side of the sensor 41;

[0084] The damper control mechanism 4 detects the area of ​​the regulating port 5 and the wind speed passing through the regulating port 5 through the sensor 41. When the temperature and humidity are higher than the set value, the sensor 41 transmits a signal to the outside so that the fan 12 and the blade component 211 are closed.

[0085] by Fig.12 This is the initial process, and the regulating port 5 is in the closed state;

[0086] In the first process, when the internal fruit and vegetable drawer is in a low humidity environment q1 (below 40%), the temperature and humidity sensor detects a low humidity environment, and the stepper motor starts to work continuously. The shaft of the drive motor 32 rotates counterclockwise and drives the gear turntable 23 to rotate α1 degrees. The adjacent surfaces H1 and H2 of the first fan-shaped damper blade 2111 and the second fan-shaped damper blade 2112 continuously cooperate with the first fixed wedge 221 and the second fixed wedge 222 as the base point to perform a track-changing translation motion. Fig.14 As shown, the first fixed wedge 221 and the second fixed wedge 222 are located at positions C1 and C2, the area of ​​the regulating port 5 is opened to the maximum, and the wind speed V of the fan 12 inside S1 is monitored by the wind speed sensor, so as to calculate the compartment air volume Q3 per unit time.

[0087] In the second process, the humidity in the compartment continues to increase with time. When the internal fruit and vegetable drawer is in a medium humidity environment q2 (50% to 70%), the temperature and humidity sensor sends a signal of a medium humidity environment. The stepper motor main shaft starts to rotate counterclockwise and drives the gear turntable 23 to rotate α2 degrees. During this period, the surface H1 of the first fan-shaped damper blade 2111 in the upper left corner and the surface H2 of the second fan-shaped damper blade 2112 in the upper right corner are always in a coincident matching state and make a circular motion through the first fixed wedge 221 and a translational motion through the second fixed wedge 222. The blade component 211 continues to make a biaxial translational motion. At this time, Fig.13 As shown, the first fixed wedge 221 and the second fixed wedge 222 are located at positions B1 and B2, the area of ​​the regulating port 5 is S2, and the wind speed of the fan is V, so the air volume Q2 of the compartment per unit time is calculated;

[0088] In the third process, the humidity of the room continues to increase with time. When the humidity of the fruit and vegetable drawer is in a high humidity environment q1 (80% to 90%), the temperature and humidity sensor detects that the internal humidity is too high, stops the stepper motor to close the regulating port 5, and the area passed by the blade component 211 when it is completely closed is 0, that is, the air volume passed is Q1 = 0, and the regulating port 5 is in a completely closed state. Fig.12 As shown, the first fixed wedge 221 and the second fixed wedge 222 are located at positions A1 and A2.

[0089] In this way, the damper control mechanism 4 can adjust the air volume according to real-time feedback, accurately control the temperature and humidity of the internal fruit and vegetable drawer, ensure that the internal fruit and vegetable drawer environment is always in an ideal state, and avoid problems such as excessive ventilation or excessive humidity.

[0090] See also Figure 4 , the first limiting grooves 24 are arranged in a ring array with the axis of the gear rotating disk 23, and four first limiting grooves 24 are arranged at equal intervals; and / or,

[0091] The second limiting grooves 25 are radially distributed with respect to the axis of the gear rotating disk 23 and are located between the two first limiting grooves 24, and four second limiting grooves 25 are arranged at equal intervals; and or,

[0092] The third limiting grooves are arranged in a ring array with the axis of the clamping gasket 6 and correspond to the positions of the first limiting grooves 24 .

[0093] By providing the first limiting groove, the second limiting groove and the third limiting groove, the adjusting component 21 can move under the limiting sliding of the fixed wedge 22, so as to achieve the purpose of adjusting the adjusting port 5.

[0094] See also Figure 1 and Figure 2 The power mechanism 3 includes a driving motor 32, which is fixedly installed on one side of the ventilation duct 11 close to the gear turntable 23. The other side of the driving motor 32 is fixedly connected to the driving gear 31, and the driving gear 31 is meshed with the gear turntable 23 for transmission. The driving motor 32 can be a servo motor or a stepping motor.

[0095] The driving gear 31 is driven to rotate by precise control of a servo motor or a stepping motor, and the driving gear 31 is meshed with the gear rotating disk 23 to achieve precise control of the size of the regulating port 5 .

[0096] A refrigerator is provided with a damper structure in the technical solution.

[0097] Working principle:

[0098] First, the driving motor 32 drives the driving gear 31 to make a fixed-axis circular motion, and the gear turntable 23 is rotated by meshing with the driving gear 31. The blade component 211 cooperates with the clamping gasket 6 and the gear turntable 23 through the fixed wedge 22. During the rotation of the gear turntable 23, the blade component 211 slides in the first limiting groove 24 through the first fixed wedge 221 and the second fixed wedge 222 slides in the second limiting groove 25, so that the middle of the multiple blade components 211 is closed in a square, thereby controlling the size of the adjustment port. After that, the fan 12 runs through the ventilation duct 11 to deliver fresh air to the room, thereby achieving functions such as air exchange and moisturizing for the room. At the same time, the sensor 41 specifically calculates the existing air volume of the room through the damper area and wind speed. When the temperature and humidity are higher than the average level, the sensor 7 sends a signal to the central control unit so that the fan 12 and the precision control port 5 are closed, thereby accurately controlling the temperature and humidity level of the room.

[0099] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0100] Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments, and this embodiment will not be described in detail here.

[0101] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0102] In the above embodiments of the present application, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0103] In the several embodiments provided in the present application, it should be understood that the disclosed client can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0104] The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A damper structure, characterized in that: include, A damper opening and closing mechanism (2), the damper opening and closing mechanism (2) comprising an adjustment component (21), the adjustment component (21) having an adjustment port (5) therein, so that airflow passes through the adjustment port (5); A power mechanism (3), the power mechanism (3) being used to provide power to the damper opening and closing mechanism; A damper control mechanism (4), wherein the damper control mechanism (4) detects the area of ​​the regulating port (5) and the wind speed passing through the regulating port (5), and drives the regulating component (21) to move according to the area of ​​the regulating port (5) and the wind speed passing through the regulating port (5), so as to adjust the amount of wind entering the regulating port (5).

2. The damper structure according to claim 1, characterized in that: The adjustment component (21) comprises a plurality of blade components (211), and the plurality of blade components (211) are movably arranged to enclose the adjustment port (5) between the plurality of blade components (211).

3. The damper structure according to claim 2, characterized in that: The blade component (211) comprises a first fan-shaped damper blade (2111), a second fan-shaped damper blade (2112), a third fan-shaped damper blade (2113) and a fourth fan-shaped damper blade (2114), wherein the included angles of two straight sides of the first fan-shaped damper blade (2111), the second fan-shaped damper blade (2112), the third fan-shaped damper blade (2113) and the fourth fan-shaped damper blade (2114) are all 90°.

4. The damper structure according to claim 3, characterized in that: The damper opening and closing mechanism (2) further comprises: A fixed wedge (22), the fixed wedge (22) being fixedly arranged on one side of the blade component (211); the fixed wedge (22) comprising a first fixed wedge (221) and a second fixed wedge (222), the first fixed wedge (221) and the second fixed wedge (222) being arranged at an interval; a gear rotating disk (23), wherein the gear rotating disk (23) is in sliding contact with the blade component (211); A first limiting groove (24), the first limiting groove (24) being located on the gear rotating disk (23) and penetrating the gear rotating disk (23), the first fixing wedge (221) slidingly penetrating the first limiting groove (24); A second limiting groove (25), the second limiting groove (25) is located on the gear rotating disk (23) and passes through the gear rotating disk (23), and the second fixed wedge (222) slides through the second limiting groove (25); When the gear rotating disk (23) rotates, the first fixed wedge (221) slides in the first limiting groove (24), and the second fixed wedge (222) slides in the second limiting groove (25), thereby driving the blade component (211) to slide along the gear rotating disk (23).

5. The damper structure according to claim 4, characterized in that: The first fixed wedge (221) comprises: a fixed rod (2211), wherein the fixed rod (2211) is fixedly connected to one side of the blade component (211); A sliding round head (2212), wherein the sliding round head (2212) is fixedly arranged on the other end of the fixing rod (2211).

6. The damper structure according to claim 5, characterized in that: It also includes a clamping gasket (6), which is located on the side of the gear turntable (23) away from the blade component (211) and is coaxially arranged with the gear turntable (23), the clamping gasket (6) is rotatably connected to the gear turntable (23), and the clamping gasket (6) is provided with a third limiting groove near the gear turntable (23), and the third limiting groove enables the sliding round head (2212) to slide within the internal limit position, and a ventilation mechanism (1) is fixedly arranged on the other side of the clamping gasket (6).

7. The damper structure according to claim 6, characterized in that: The ventilation mechanism (1) comprises: a ventilation duct (11), wherein the ventilation duct (11) is located on a side of the clamping gasket (6) away from the gear rotating disk (23); A fan (12), wherein the fan (12) is located at the other side of the ventilation duct (11), and the fan (12) is used to convey airflow.

8. The damper structure according to claim 7, characterized in that: The damper control mechanism (4) comprises a sensor (41), wherein the sensor (41) is located on a side of the fan (12) away from the ventilation duct (11); A sensor box body (42), wherein the sensor box body (42) is installed on the other side of the sensor (41); The damper control mechanism (4) detects the area of ​​the regulating port (5) and the wind speed passing through the regulating port (5) through a sensor (41); when the temperature and humidity are higher than a set value, the sensor (41) transmits a signal to the outside so that the fan (12) and the blade component (211) are closed.

9. The damper structure according to claim 6, characterized in that: The first limiting grooves (24) are arranged in a ring array around the axis of the gear rotating disk (23), and four first limiting grooves (24) are arranged at equal intervals; and / or, The second limiting grooves (25) are radially distributed with respect to the axis of the gear rotating disk (23) and are located between the two first limiting grooves (24), and four second limiting grooves (25) are arranged at equal intervals; and / or, The third limiting grooves are arranged in a ring array with the axis of the clamping gasket (6) and correspond to the positions of the first limiting grooves (24).

10. The damper structure according to claim 7, characterized in that: The power mechanism (3) comprises a drive motor (32), wherein the drive motor (32) is fixedly mounted on one side of the ventilation duct (11) close to the gear rotating disk (23), and the other side of the drive motor (32) is fixedly connected to a drive gear (31), and the drive gear (31) is meshed with the gear rotating disk (23) for transmission.

11. A refrigerator, comprising a damper structure, characterized in that: The damper structure is the damper structure according to any one of claims 1 to 10.

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