Air duct mask of refrigerator, air duct assembly and refrigerator

Abstract

The present invention relates to an air duct mask, an air duct assembly and a refrigerator. The air duct mask includes a main body and a damper assembly; the main body cover is arranged on the compartment of the refrigerator, and the main body has a plurality of throttle holes and air outlets connected to the compartment; the damper assembly includes a temperature sensor for obtaining temperature information in the compartment, a controller electrically connected to the temperature sensor, a driving member electrically connected to the controller, and a damper connected to the driving member and installed at the air outlet; the controller is used to drive the driving member according to the temperature information transmitted by the temperature sensor to control the opening and closing of the damper. The present invention can prevent all food from being corroded and deteriorated, and can also ensure that all food in the refrigerated compartment is not dried out by air through the cooperation of the throttle holes of the main body and the damper assembly.

Description

Technical Field

[0001] The invention relates to the field of electrical appliances, and in particular to an air duct mask of a refrigerator, an air duct component and a refrigerator. Background Art

[0002] Current frost-free refrigerators generally use forced circulation of cold air for refrigeration to achieve the purpose of defrosting during the refrigeration process. Among them, fans are usually installed in the air duct of such refrigerators to force air convection in the refrigerator, which accelerates the removal of moisture from the food in the refrigerator compartment, causing the food to dry out and become stale. In response to this, existing refrigerator compartments are generally equipped with moisturizing drawers, but the space of the moisturizing drawers is small, and it is not possible to ensure that all the food in the refrigerator compartment will not be dried out without spoiling. Summary of the invention

[0003] Based on this, it is necessary to provide a refrigerator air duct mask, an air duct assembly and a refrigerator to address the problem that the refrigerator cannot ensure that all the food in the cold storage room will not be dried out without spoiling.

[0004] A refrigerator air duct mask, the air duct mask comprising: a main body and an air door assembly;

[0005] The main body cover is arranged on the compartment of the refrigerator, and the main body has a plurality of throttle holes and air outlets communicating with the compartment;

[0006] The damper assembly comprises: a temperature sensor for obtaining temperature information in the compartment, a controller electrically connected to the temperature sensor, a driving member electrically connected to the controller, and a damper connected to the driving member and installed at the air outlet;

[0007] The controller is used to drive the driving member according to the temperature information transmitted by the temperature sensor to control the opening and closing of the damper.

[0008] In one of the embodiments, the main body also has a guide window connected to the multiple throttle holes.

[0009] In one embodiment, the height of the guide window gradually decreases along the direction from the main body to the compartment.

[0010] In one embodiment, the diameter of each throttling hole is less than or equal to 2 mm.

[0011] In one embodiment, the driving member is a motor that can rotate in forward and reverse directions;

[0012] The damper is connected to the output shaft of the driving member.

[0013] In one embodiment, a first ear plate and a second ear plate are axially spaced apart on the wall of the air outlet;

[0014] The damper comprises: a door body and a rotating shaft extending in the same direction;

[0015] Both ends of the door body are connected to the rotating shaft through a fixing plate;

[0016] One end of the rotating shaft is supported in the mounting hole of the first ear plate, and the other end of the rotating shaft passes through the mounting hole of the second ear plate and is connected to the output shaft of the driving member.

[0017] In one of the embodiments, the driving member is snap-connected to the main body.

[0018] In one embodiment, the main body is provided with at least one first clamping member at intervals along the extension direction of the driving member, and each first clamping member has a clamping hole;

[0019] The driving member is clamped in the clamping hole of each first clamping member.

[0020] In one of the embodiments, an opening communicating with the clamping hole is provided on the wall of each first clamping member.

[0021] In one of the embodiments, a limited step is provided on the driving member;

[0022] The limiting step abuts against a first side surface of a first clamping member adjacent to the damper, wherein the first side surface is distributed close to an output shaft of the driving member.

[0023] In one embodiment, the main body includes: a first side wall distributed along the vertical direction, a second side wall connected to the top of the first side wall and extending into the compartment;

[0024] The plurality of throttling holes are opened on the first side wall;

[0025] The air outlet is opened on the second side wall.

[0026] In one of the embodiments, the temperature sensor is clamped on the second side wall.

[0027] In one embodiment, the second side wall has a temperature measurement channel connected to the compartment;

[0028] Four second clamping members are arranged at intervals on the second side wall, and the four second clamping members cooperate to form a clamping cavity connected to the temperature measuring channel;

[0029] The temperature sensor is clamped in the clamping cavity.

[0030] A refrigerator air duct assembly, comprising: an air duct mask as described in any one of the above items and a rear cover mounted on the air duct mask.

[0031] A refrigerator comprises the air duct assembly described above.

[0032] The air duct mask, air duct assembly and refrigerator of the refrigerator described above, the temperature sensor of the air door assembly can obtain the temperature information in the cold storage room in real time and transmit it to the controller. When the controller detects that the temperature in the cold storage room is lower than the first preset temperature, it drives the driving member to close the air door, and the cold air in the refrigerator air duct flows into the cold storage room through the throttle hole on the main body, so that the wind speed of the cold air flowing into the cold storage room is greatly reduced, thereby improving the problem of food drying due to forced convection in the existing air-cooled refrigerator; when the controller detects that the temperature in the cold storage room is higher than the second preset temperature, it drives the driving member to open the air door, and the cold air in the air duct flows into the cold storage room through the air outlet of the main body, so that the temperature in the cold storage room is reduced, which can ensure that the temperature in the cold storage room is always maintained within the preset temperature, preventing the food in the cold storage room from spoiling. In summary, the air duct mask, air duct assembly and refrigerator described above, through the cooperation of the throttle hole of the main body and the air door assembly, can not only prevent all the food in the cold storage room from corrosion and spoilage, but also ensure that all the food in the cold storage room is not dried. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A schematic structural diagram of an air duct mask of a refrigerator provided in one embodiment of the present invention;

[0034] Figure 2 A front view of an air duct mask of a refrigerator provided by an embodiment of the present invention;

[0035] Figure 3 for Figure 1 A local enlarged schematic diagram of the middle A;

[0036] Figure 4 A top view of an air duct mask of a refrigerator provided in one embodiment of the present invention;

[0037] Figure 5 for Figure 1 A partial enlarged schematic diagram of point B in the middle;

[0038] Figure 6 A rear view of an air duct mask of a refrigerator provided by an embodiment of the present invention;

[0039] Figure 7 A side view of an air duct mask of a refrigerator provided by an embodiment of the present invention;

[0040] Figure 8 A partial side view of an air duct mask of a refrigerator provided by an embodiment of the present invention;

[0041] Fig. 9 for Figure 5 A partial enlarged schematic diagram of point C in the middle;

[0042] Fig.10 for Figure 5 A partial enlarged schematic diagram of point D in the middle;

[0043] Fig.11 for Figure 4 A partial enlarged schematic diagram of point E in the middle.

[0044] The descriptions of the various reference numerals in the accompanying drawings are as follows:

[0045] 100-air duct mask, 110-main body, 111-first ear plate, 112-second ear plate, 113-first side wall, 114-second side wall, 114a-temperature measuring channel, 110a-throttle hole, 110b-flow guide window, 120-damper assembly, 121-temperature sensor, 122-driving member, 1221-limiting step, 123-damper, 1231-door body, 1232-rotating shaft, 1233-fixing plate, 124-first clamping member, 124a-opening, 125-second clamping member, 1251-installing part, 1252-clamping part, 126-limiting member, 126a-groove, 1261-third clamping member, 127-shielding member; 130-air flow forming member, 140-wind guide member. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific implementation described herein is only used to explain the present invention and is not intended to limit the present invention.

[0047] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may also be a centered element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a centered element at the same time. On the contrary, when an element is referred to as being "directly on" another element, there is no intermediate element. On the contrary, when an element is referred to as being "directly" connected to another element, there is no intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0048] In the description of the present invention, it should be understood that the terms "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0049] On the one hand, an embodiment of the present invention provides an air duct mask, such as Figure 1 As shown, the air duct mask 100 includes: a main body 110 and a damper assembly 120; Figures 1 to 3 As shown, the main body 110 is covered on the compartment of the refrigerator, and the main body 110 has a plurality of throttle holes 110a and air outlets communicating with the compartment; Figure 4 and Figure 5 As shown, the damper assembly 120 includes: a temperature sensor 121 for obtaining temperature information in the room, a controller electrically connected to the temperature sensor 121, a driving member 122 electrically connected to the controller, and a damper 123 connected to the driving member 122 and installed at the air outlet; the controller is used to drive the driving member 122 according to the temperature information transmitted by the temperature sensor 121 to control the opening and closing of the damper 123.

[0050] It should be noted that the compartment involved in the present invention can be a refrigeration compartment or a freezing compartment. In addition, the throttle hole 110a can reduce the pressure of the gas flowing through, thereby reducing the gas flow rate. Then, when the damper 123 at the air outlet of the main body 110 is opened, since the throttle hole 110a has a intercepting effect, most of the cold air in the refrigerator air duct will flow to the air outlet of the air duct mask 100, and a small part of the cold air will flow to the throttle hole 110a.

[0051] In the air duct mask 100 of the refrigerator as described above, the temperature sensor 121 of the damper assembly 120 can obtain the temperature information of the refrigerator compartment in real time and transmit it to the controller. When the controller detects that the temperature in the refrigerator compartment is lower than the first preset temperature, the driving member 122 is driven to close the damper 123, and the cold air in the refrigerator air duct flows into the refrigerator compartment through the throttle hole 110a on the main body 110, so that the wind speed of the cold air flowing into the refrigerator compartment is greatly reduced, thereby improving the problem of food drying due to forced convection in the prior art air-cooled refrigerator; when the controller detects that the temperature in the refrigerator compartment is higher than the second preset temperature, the driving member 122 is driven to open the damper 123, and the cold air in the air duct flows into the refrigerator compartment through the air outlet of the main body 110, so that the temperature in the refrigerator compartment is reduced, which can ensure that the temperature in the refrigerator compartment is always maintained within the preset temperature, thereby preventing the food in the refrigerator compartment from spoiling.

[0052] In summary, the air duct mask 100 described above, through the cooperation between the throttle hole 110a of the main body 110 and the damper assembly 120, can not only prevent all food from being corroded and deteriorated, but also ensure that all food in the refrigerator room is not dried out.

[0053] like Figure 6 and Figure 7 As shown, in some embodiments of the present invention, the main body 110 further has a guide window 110b connected to the plurality of throttle holes 110a, so that the cold air in the refrigerator air duct can flow to the throttle holes 110a.

[0054] Specifically in some embodiments of the present invention, Figure 6 and Figure 7 As shown, the height of the guide window 110b gradually decreases along the direction from the main body 110 to the compartment. The guide window 110b of this structure guides the flow of cold air in the refrigerator air duct, so that the cold air flows smoothly to the throttle hole 110a.

[0055] Alternatively, if Figure 6 and Figure 7 As shown, the guide window 110b includes a first side surface, a second side surface, a third side surface and a fourth side surface connected end to end in sequence, the first side surface is horizontally distributed, the third side surface is obliquely distributed upward, and the spacing between the first side surface and the third side surface gradually decreases along the direction from the main body 110 to the compartment. It can be understood that the spacing between the first side surface and the third side surface constitutes the height of the guide window 110b.

[0056] Alternatively, if Figure 1 As shown, the number of the guide windows 110b can be set to 4, and the 4 guide windows are arranged in an array of 2 rows×2 columns. It can be understood that the multiple throttle holes 110a are divided into 4 groups, and each group of throttle holes 110a is connected to the corresponding guide window 110b.

[0057] In some embodiments of the present invention, the diameter of each throttle hole 110a is less than or equal to 2 mm, for example, it can be set to 2.0 mm, 1.8 mm, 1.6 mm, 1.4 mm, 1.2 mm, 1.0 mm, 0.8 mm, 0.6 mm, etc. In this way, the cold air flowing through can be effectively intercepted.

[0058] Optionally, a plurality of throttling holes 110a may be arranged in an array.

[0059] Two examples are given below on how the driver 122 controls the opening and closing of the damper 123:

[0060] In the first example, in some embodiments of the present invention, the driving member 122 is a motor that can rotate in forward and reverse directions; the damper 123 is connected to the output shaft of the driving member 122. This type of control method can save the space occupied by the air duct mask 100 and make the internal structure of the air duct mask 100 compact.

[0061] When the controller detects that the temperature of the refrigerating compartment is lower than the first preset temperature, the first electrical signal is transmitted to the driving member 122, and the driving member 122 rotates in the positive direction (e.g., clockwise) until the damper 123 closes the air outlet of the main body 110, so that the cold air in the refrigerator air duct flows to the throttle hole 110a of the main body 110. When the cold air flows through the throttle hole 110a, the throttle hole 110a will reduce the pressure of the cold air and hinder the flow of the cold air, so that the wind speed of the cold air flowing into the refrigerating compartment is greatly reduced, thereby improving the problem of food drying due to forced convection in the prior art air-cooled refrigerator, and achieving the effect of food preservation.

[0062] When the controller detects that the temperature of the refrigerating compartment is higher than the second preset temperature, the second electrical signal is transmitted to the driving member 122, and the driving member 122 rotates in the opposite direction (e.g., counterclockwise) until the damper 123 opens the air outlet of the main body 110. Since the throttle hole 110a has the characteristic of blocking the passage of cold air, the cold air in the refrigerator air duct flows to the air outlet of the main body 110b, and then the cold air flows into the refrigerating compartment through the air outlet, so that the temperature in the refrigerating compartment is reduced, which can ensure that the temperature in the refrigerating compartment is always maintained within the preset temperature, prevent the food in the refrigerating compartment from deteriorating, and ensure the freshness of the food.

[0063] Specifically in some embodiments of the present invention, Figure 5 and Figure 8 As shown, a first ear plate 111 and a second ear plate 112 are axially spaced apart on the wall of the air outlet; the damper 123 includes: a door body 1231 and a rotating shaft 1232 extending in the same direction; both ends of the door body 1231 are connected to the rotating shaft 1232 through a fixing plate 1233; one end of the rotating shaft 1232 is supported in the mounting hole of the first ear plate 111, and the other end of the rotating shaft 1232 passes through the mounting hole of the second ear plate 112 and is connected to the output shaft of the driving member 122.

[0064] Optionally, the door body 1231, the two fixing plates 1233 and the rotating shaft 1232 may be connected in an integrated manner. The first ear plate 111 and the second ear plate 112 may be arranged on the wall of the air outlet in an integrated manner.

[0065] Optionally, the door body 1231 is a flat plate structure.

[0066] In some embodiments of the present invention, the driving member 122 is snap-connected to the main body 110. In this way, the driving member 122 is easy to replace.

[0067] Specifically in some embodiments of the present invention, Figure 8 As shown, the main body 110 is provided with at least one first clamping member 124 at intervals along the extension direction of the driving member 122 , and each first clamping member 124 has a clamping hole; the driving member 122 is clamped in the clamping hole of each first clamping member 124 .

[0068] Optionally, the first clamping member 124 may be a regular quadrangular prism structure, and the number of the first clamping members 124 may be two.

[0069] Alternatively, if Fig. 9 As shown, an opening 124a connected to the clamping hole is provided on the wall of each first clamping member 124. In this way, the deformation capacity of the first clamping member 124 can be improved, which can not only ensure the clamping of the driving member 122, but also prevent the first clamping member 124 from breaking due to insufficient deformation capacity.

[0070] Alternatively, if Fig. 9 As shown, a limiting step 1221 is provided on the driving member 122; the limiting step 1221 abuts against a first side surface of a first clamping member 124 adjacent to the damper 123, wherein the first side surface is close to the output shaft of the driving member 122. When assembling the damper assembly 120, the driving member 122 can be sequentially pushed into the clamping holes of the plurality of first clamping members 124 in a direction away from the damper 123, and after the limiting step 1221 of the driving member 122 abuts against a first side surface of the first clamping member 124 adjacent to the damper 123, the driving member 122 is stopped from being pushed, so that the assembly time of the driving member 122 can be saved.

[0071] In the second example, in some embodiments of the present invention, the driving member 122 is a hydraulic cylinder that can be extended and retracted along the axial direction; the damper 123 is connected to the piston rod of the driving member 122.

[0072] When the controller detects that the temperature of the refrigerating compartment is lower than the first preset temperature, the first electrical signal is transmitted to the driving member 122, and the piston rod of the driving member 122 is extended to push the damper 123 until the damper 123 closes the air outlet of the main body 110, so that the cold air in the refrigerator air duct flows to the throttle hole 110a of the main body 110. When the controller detects that the temperature of the refrigerating compartment is higher than the second preset temperature, the second electrical signal is transmitted to the driving member 122, and the piston rod of the driving member 122 is retracted to pull back the damper 123 until the damper 123 opens the air outlet of the main body 110, and the cold air in the refrigerator air duct flows to the air outlet of the main body 110b.

[0073] Optionally, two opposite side walls of the air outlet are provided with guide grooves extending in the same direction as the extension direction of the piston rod; the damper 123 can slide along the guide grooves. In this way, the piston rod can facilitate pushing the damper 123 into the air outlet or pulling the damper 123 out of the air outlet, and can also play a role in supporting the damper 123.

[0074] Optionally, the damper 123 may be connected to the piston rod by bolts, so that the damper 123 can be easily assembled and disassembled.

[0075] Optionally, the fixing method of the driving member 122 on the main body 110 is the same as the fixing method of the driving member 122 provided in the first example above, which will not be repeated here.

[0076] like Figure 1 and Figure 7 As shown, in some embodiments of the present invention, the main body 110 includes: a first side wall 113 distributed in the vertical direction, a second side wall 114 connected to the top of the first side wall 113 and extending into the compartment; a plurality of throttle holes 110a are provided on the first side wall 113; and an air outlet is provided on the second side wall 114. After being discharged from the air outlet at the top of the main body 110, the cold air can be deposited downward, so that the indoor and outdoor temperatures are rapidly reduced, which can effectively prevent food from spoiling and ensure the freshness of food.

[0077] Further, the temperature sensor 121 is snap-fitted to the second side wall 114. Thus, the temperature sensor 121 can be snap-fitted to the main body 110 first, and then the air duct mask 100 is integrally covered on the compartment, which facilitates the assembly and disassembly of the air duct mask 100.

[0078] Furthermore, if Fig.10 As shown, in some embodiments of the present invention, the second side wall 114 has a temperature measuring channel 114a connected to the compartment; the second side wall 114 is provided with four second clamping members 125 (see Fig.11 ), the four second clamping members 125 cooperate to form a clamping cavity connected to the temperature measuring channel 114a; the temperature sensor 121 is clamped in the clamping cavity.

[0079] Alternatively, if Fig.10 As shown, each second clamping member 125 includes: a mounting portion 1251 connected to the second side wall 114, and a clamping portion 1252 connected to the mounting portion 1251 and protruding toward the temperature measuring channel 114a. The clamping portion 1252 can be configured as a pentagonal prism structure distributed obliquely upward.

[0080] Optionally, a protective sleeve is provided on the outside of the temperature sensor 121 along the axial direction; Fig.10 and Fig.11As shown, two relatively distributed stoppers 126 are also provided on the second side wall 114, each stopper 126 is located between two corresponding adjacent second clamping members 125, and each stopper 126 is provided with a groove 126a, and the grooves 126a of the two stoppers 126 can cooperate to form a stopper groove for fixing the protective cover. In this way, the two stoppers 126 can cooperate to limit the temperature sensor 121 on the horizontal plane to prevent it from shaking left, right, front, and back, thereby overcoming the problem that the four second clamping members 125 only limit the temperature sensor 121 in the upper and lower directions.

[0081] Optionally, the limiting member 126 may be configured as a plate-shaped structure.

[0082] Optionally, the stopper 126 may be disposed on the second side wall 114 of the main body 110 in a snap-fit ​​manner. Figure 2 As shown, two third clamping members 1261 are arranged at intervals on the limit member 126; two clamping grooves are arranged at intervals on the same side wall of the temperature measuring channel 114a, and each third clamping member 1261 is clamped into the corresponding clamping groove.

[0083] Furthermore, if Fig.10 As shown, in some embodiments of the present invention, the groove 126a is a through groove; two shielding members 127 are relatively arranged on the second side wall 114, and each shielding member 127 is attached to the wall of the corresponding stopper 126 away from the temperature measurement channel 114a. The shielding member 127 can shield the protective cover of the temperature sensor exposed to the groove 126a, improve the aesthetics of the air duct mask 100, and further improve the user experience.

[0084] In some embodiments of the present invention, the controller may be a PLC (Programmable Logic Controller) or may be integrated into a controller of the refrigerator.

[0085] In some embodiments of the present invention, Figure 6 and Figure 7 As shown, an airflow forming member 130 is installed on the wall of the main body 110 facing away from the compartment; the airflow forming member 130 is located below the plurality of throttle holes 110a and the damper 123. In this way, the airflow forming member 14 can be installed on the main body 110 first, and then the air duct mask 110 is placed in the compartment, which is conducive to the assembly and disassembly of the air duct mask 110.

[0086] Optionally, the airflow forming member 130 is a fan, and the airflow forming member 130 may be mounted on the first side wall 113 of the main body 110 by using screws.

[0087] Further, in some embodiments of the present invention, Figure 6As shown, the air duct mask 100 further includes: an air guide 140 disposed on the main body 110, the air guide 140 cooperates with the main body 110 to form an air guide channel, the air inlet of the guide channel is aligned with the air flow forming member 130, and the air outlet of the guide channel is connected to a plurality of throttle holes 110a and an air outlet. In this way, most of the cold air flow formed by the air flow forming member 130 can flow to the throttle holes 110a or the air outlet, thereby improving the utilization rate of the air flow forming member 130.

[0088] Optionally, the air guide 140 is a foam air duct, which can be fixed to the main body 110 by screws.

[0089] Optionally, an air collecting housing is further provided on the main body 110, and the air collecting housing has an air inlet connected to the refrigerator air duct and an air outlet connected to the air inlet of the guide channel. The air outlet of the air collecting housing can be provided with a trapezoidal opening structure, and the width of the trapezoidal opening structure gradually increases in the direction away from the air flow forming member 130. In this way, the air flow discharged from the air flow forming member 130 can smoothly flow into the guide channel through the air outlet of the air collecting housing.

[0090] On the one hand, an embodiment of the present invention further provides an air duct assembly for a refrigerator, the air duct assembly comprising: the air duct mask 100 described in any one of the above items and a rear cover mounted on the air duct mask 100 .

[0091] The temperature sensor of the air duct assembly 120 of the air duct mask 100 of the refrigerator as described above can obtain the temperature information of the refrigerator compartment in real time and transmit it to the controller. When the controller detects that the temperature in the refrigerator compartment is lower than the first preset temperature, the driving member 122 is driven to close the air door 123, and the cold air in the air duct flows into the refrigerator compartment through the throttle hole 110a on the main body 110, so that the wind speed of the cold air flowing into the refrigerator compartment is greatly reduced, thereby improving the problem of food drying due to forced convection in the prior art air-cooled refrigerator; when the controller detects that the temperature in the refrigerator compartment is higher than the second preset temperature, the driving member 122 is driven to open the air door 123, and the cold air in the air duct flows into the refrigerator compartment through the air outlet on the main body 110, so that the temperature in the refrigerator compartment is reduced, which can ensure that the temperature in the refrigerator compartment is always maintained within the preset temperature, thereby preventing the food in the refrigerator compartment from spoiling. In summary, the air duct assembly described above, through the cooperation between the throttle hole 110a of the main body 110 and the damper assembly 120, can not only prevent all food from being corroded and deteriorated, but also ensure that all food in the refrigerated compartment is not dried out.

[0092] On the other hand, another embodiment of the present invention provides a refrigerator, which includes the air duct assembly described above.

[0093] In the refrigerator as described above, the temperature sensor of the damper assembly 120 of the air duct mask 100 can obtain the temperature information of the refrigerator compartment in real time and transmit it to the controller. When the controller detects that the temperature in the refrigerator compartment is lower than the first preset temperature, it drives the driving member 122 to close the damper 123, and the cold air in the air duct flows into the refrigerator compartment through the throttle hole 110a on the main body 110, so that the wind speed of the cold air flowing into the refrigerator compartment is greatly reduced, thereby improving the problem of food drying due to forced convection in the prior art air-cooled refrigerator; when the controller detects that the temperature in the refrigerator compartment is higher than the second preset temperature, it drives the driving member 122 to open the damper 123, and the cold air in the air duct flows into the refrigerator compartment through the air outlet on the main body 110, so that the temperature in the refrigerator compartment is reduced, which can ensure that the temperature in the refrigerator compartment is always maintained within the preset temperature, thereby preventing the food in the refrigerator compartment from spoiling. In summary, the refrigerator described above can prevent all foods from being corroded and deteriorated and can also ensure that all foods in the refrigerating compartment are not dried out by the cooperation between the throttle hole 110a of the main body 110 and the damper assembly 120.

[0094] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0095] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A refrigerator air duct mask, characterized in that: The air duct mask (100) comprises: a main body (110) and a damper assembly (120); The main body (110) is covered on the compartment of the refrigerator, and the main body (110) has a plurality of throttle holes (110a) and air outlets communicating with the compartment; The damper assembly (120) comprises: a temperature sensor (121) for obtaining temperature information in the compartment, a controller electrically connected to the temperature sensor (121), a driving member (122) electrically connected to the controller, and a damper (123) connected to the driving member (122) and installed at the air outlet; The controller is used to drive the driving member (122) according to the temperature information transmitted by the temperature sensor (121) to control the opening and closing of the damper (123); When the temperature detected by the controller is lower than a first preset temperature, a first electrical signal is transmitted to the driving member (122), and the driving member (122) rotates in a positive direction until the air door (123) closes the air outlet of the main body (110), so that the cold air in the refrigerator air duct flows toward the throttle hole (110a) of the main body (110); When the temperature detected by the controller is higher than a second preset temperature, a second electrical signal is transmitted to the driving member (122), and the driving member (122) rotates in the opposite direction until the damper (123) opens the air outlet of the main body (110).

2. The air duct mask according to claim 1, characterized in that: The main body (110) also has a flow guide window (110b) that is in communication with the plurality of throttling holes (110a).

3. The air duct mask according to claim 2, characterized in that: The height of the guide window (110b) gradually decreases along the direction from the main body (110) to the compartment.

4. The air duct mask according to any one of claims 1 to 3, characterized in that: The diameter of each throttle hole (110a) is less than or equal to 2 mm.

5. The air duct mask according to claim 1, characterized in that: The driving member (122) is a motor that can rotate in forward and reverse directions; The damper (123) is connected to the output shaft of the driving member (122).

6. The air duct mask according to claim 5, characterized in that: A first ear plate (111) and a second ear plate (112) are arranged on the wall of the air outlet at intervals along the axial direction; The damper (123) comprises: a door body (1231) and a rotating shaft (1232) extending in the same direction; Both ends of the door body (1231) are connected to the rotating shaft (1232) via a fixing plate (1233); One end of the rotating shaft (1232) is supported in the mounting hole of the first ear plate (111), and the other end of the rotating shaft (1232) passes through the mounting hole of the second ear plate (112) and is connected to the output shaft of the driving member (122).

7. The air duct mask according to claim 5, characterized in that: The driving member (122) is clamped on the main body (110).

8. The air duct mask according to claim 7, characterized in that: The main body (110) is provided with at least one first clamping member (124) at intervals along the extension direction of the driving member (122), and each first clamping member (124) has a clamping hole; The driving member (122) is clamped in the clamping hole of each first clamping member (124).

9. The air duct mask according to claim 8, characterized in that: An opening (124a) communicating with the clamping hole is provided on the wall of each first clamping member (124).

10. The air duct mask according to claim 8, characterized in that: The driving member (122) is provided with a limiting step (1221); The limiting step (1221) abuts against a first side surface of a first clamping member (124) adjacent to the damper (123), wherein the first side surface is distributed close to an output shaft of the driving member (122).

11. The air duct mask according to claim 1, characterized in that: The main body (110) comprises: a first side wall (113) distributed along the vertical direction, and a second side wall (114) connected to the top of the first side wall (113) and extending into the compartment; The plurality of throttling holes (110a) are opened on the first side wall (113); The air outlet is opened on the second side wall (114).

12. The air duct mask according to claim 11, characterized in that: The temperature sensor (121) is clamped on the second side wall (114).

13. The air duct mask according to claim 12, characterized in that: The second side wall (114) is provided with a temperature measuring channel (114a) communicating with the compartment; Four second clamping members (125) are arranged at intervals on the second side wall (114), and the four second clamping members (125) cooperate to form a clamping cavity connected to the temperature measuring channel (114a); The temperature sensor (121) is clamped in the clamping cavity.

14. An air duct assembly for a refrigerator, characterized in that: The air duct assembly comprises: the air duct mask (100) according to any one of claims 1 to 13 and a rear cover mounted on the air duct mask (100).

15. A refrigerator, characterized in that: The refrigerator comprises the air duct assembly according to claim 14.

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