Air duct assembly and refrigerator

Abstract

The utility model relates to the technical field of refrigeration equipment, and provides an air duct assembly and a refrigerator, the air duct assembly comprises an air duct plate and a fan, an air supply duct, a first refrigeration duct and an exhaust duct which communicate with one another are defined in the air duct plate, and the first refrigeration duct is used for communicating to a first refrigerating chamber; the fan is arranged in the air supply duct, the fan is suitable for being switched between a forward rotation state and a reverse rotation state, and when the fan is in the forward rotation state, the fan is suitable for conveying cold air into the first refrigeration duct; when the draught fan is in the reverse rotation state, the draught fan is suitable for exhausting damp air in the first refrigerating chamber through the first refrigerating air duct and the exhaust air duct in sequence. Through the forward and reverse rotation design of the fan, the first refrigerating chamber is refrigerated during forward rotation, and the first refrigerating chamber is dehumidified during reverse rotation, so that the air humidity in the first refrigerating chamber is reduced.

Description

Technical Field

[0001] The present application belongs to the technical field of refrigeration equipment, and in particular relates to an air duct assembly and a refrigerator. Background Art

[0002] During the operation of the refrigerator, the air humidity in the refrigerator's refrigerator compartment is generally high. When users need to store high-end dried fruits or other items such as medicines in the refrigerator, a low-temperature and dry environment is required. The humidity in the refrigerator compartment of traditional refrigerators on the market is relatively high, which is not conducive to the storage of food. Utility Model Content

[0003] The embodiments of the present application provide an air duct assembly and a refrigerator to solve the problem of high humidity in the refrigeration compartment of existing refrigerators.

[0004] In a first aspect, an embodiment of the present application provides an air duct assembly, comprising:

[0005] An air duct plate, wherein the air duct plate defines an air supply duct, a first cooling duct, and an exhaust duct that are interconnected, wherein the first cooling duct is used to connect to the first refrigerating chamber;

[0006] A fan is arranged in the air supply duct, and the fan is suitable for switching between a forward rotation state and a reverse rotation state. When the fan is in the forward rotation state, the fan is suitable for delivering cold air to the first refrigeration duct; when the fan is in the reverse rotation state, the fan is suitable for discharging the air in the first refrigeration chamber through the first refrigeration duct and the exhaust duct in sequence.

[0007] In some embodiments of the present application, a first damper is provided in the first refrigeration air duct, and a second damper is provided in the exhaust air duct. When the fan is in the forward rotation state, the first damper is opened and the second damper is closed. When the fan is in the reverse rotation state, both the first damper and the second damper are opened.

[0008] In some embodiments of the present application, the air duct assembly is provided with a humidity sensor, which is used to detect the humidity parameter of the first refrigerated chamber. The fan is configured to switch to the reverse state when the humidity parameter is greater than or equal to the preset humidity, and to switch to the forward state when the humidity parameter is less than the preset humidity.

[0009] In some embodiments of the present application, the air outlet of the exhaust duct is connected to the side wall of the duct plate.

[0010] In some embodiments of the present application, the first cooling air duct and the exhaust air duct are respectively located on both sides of the fan;

[0011] And / or, at least one of the first cooling air duct and the exhaust air duct is provided with an arc segment.

[0012] In some embodiments of the present application, the fan is an axial flow fan.

[0013] In some embodiments of the present application, the air duct assembly further forms a second cooling air duct, the second cooling air duct is connected to the air supply duct, and the second cooling air duct is connected to the second refrigeration chamber to transport cold air into the second refrigeration chamber.

[0014] In some embodiments of the present application, the fan is located at the intersection of the air supply duct, the first cooling duct, the second cooling duct and the exhaust duct.

[0015] In some embodiments of the present application, the second refrigeration air duct is provided with a third damper. When the fan is in the forward rotation state, the third damper is opened, and when the fan is in the reverse rotation state, the third damper is closed.

[0016] In a second aspect, an embodiment of the present application further provides a refrigerator, comprising the air duct assembly as described in the above embodiment.

[0017] The air duct assembly provided in an embodiment of the present application includes an air duct plate and a fan. The air duct plate defines an interconnected air supply duct, a first cooling duct, and an exhaust duct. The first cooling duct is used to connect to a first cold storage chamber. The fan is arranged in the air supply duct and is adapted to switch between a forward rotation state and a reverse rotation state. When the fan is in the forward rotation state, the fan is adapted to deliver cold air into the first cooling duct. When the fan is in the reverse rotation state, the fan is adapted to discharge the humid air in the first cold storage chamber through the first cooling duct and the exhaust duct in sequence. The forward and reverse rotation design of the fan allows the first cold storage chamber to be cooled during forward rotation and dehumidified during reverse rotation, thereby reducing the air humidity in the first cold storage chamber.

[0018] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] To more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0020] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings. In the following description, the same reference numerals represent the same parts.

[0021] Figure 1 Schematic diagram of the airflow direction when the fan is in the forward rotation state provided in the embodiment of the present application Figure 1 .

[0022] Figure 2 Schematic diagram of the airflow direction when the fan is in the forward rotation state provided in the embodiment of the present application Figure 2 .

[0023] Figure 3 Schematic diagram of the airflow direction when the fan is in reverse state provided in the embodiment of the present application Figure 1 .

[0024] Figure 4 Schematic diagram of the airflow direction when the fan is in reverse state provided in the embodiment of the present application Figure 2 .

[0025] Figure 5 for Figure 2 A local enlarged schematic diagram of point A in the middle.

[0026] Reference numerals:

[0027] 100, air duct plate; 110, first cooling air duct; 120, exhaust air duct; 130, second cooling air duct; 140, air supply air duct; 111, first air door; 121, second air door; 131, third air door; 101, arc segment;

[0028] 200. Fan. DETAILED DESCRIPTION

[0029] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0030] In the description of the embodiments of the present application, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0031] In the description of the embodiments of this application, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of this application based on the specific circumstances.

[0032] In the embodiments of the present application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0033] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0034] During the operation of the refrigerator, the air humidity in the refrigerator compartment is relatively high. Food placed in the refrigerator by customers, such as high-end dried fruits, or other items such as medicines, require a low-temperature and dry environment. The traditional dehumidification methods of refrigerators currently on the market are closed drawer designs with physical structures or charcoal bag water absorption solutions, but the dehumidification effects are not ideal.

[0035] The embodiment of the present application provides an air duct assembly and a refrigerator to solve the problem of excessive humidity in the refrigerator compartment of the existing refrigerator.

[0036] The air duct assembly provided in the embodiment of the present application can be applied to a refrigerator. For example, please refer to Figure 1 , Figure 1 A schematic structural diagram of the air duct assembly provided in an embodiment of the present application.

[0037] The air duct assembly of the embodiment of the present application refers to Figure 2 and Figure 4 As shown, it includes an air duct plate 100 and a fan 200. The interior of the air duct plate 100 defines an air supply duct 140, a first refrigeration duct 110 and an exhaust duct 120 that are interconnected. The first refrigeration duct 110 is used to be connected to the first cold storage chamber; the fan 200 is arranged in the air supply duct 140, and the fan 200 is suitable for switching between a forward rotation state and a reverse rotation state. When the fan 200 is in the forward rotation state, the fan 200 is suitable for delivering cold air to the first refrigeration duct 110; when the fan 200 is in the reverse state, the fan 200 is suitable for discharging the air in the first cold storage chamber through the first refrigeration duct 110 and the exhaust duct 120 in sequence.

[0038] It can be understood that in this embodiment, a plurality of interconnected air ducts are formed in the air duct plate 100, including the supply air duct 140, the first cooling air duct 110 and the exhaust air duct 120. When the fan 200 is in the forward rotation state, cold air can be sucked in from the refrigeration system through the supply air duct 140 and delivered to the first cooling air duct 110. The first cooling air duct 110 is directly connected to the first refrigeration chamber (the first refrigeration chamber can be the space in the drawer), thereby realizing the cooling of the first refrigeration chamber. When the air humidity in the first refrigeration chamber (drawer) is high, the fan 200 can be switched to the reverse state. At this time, the fan 200 no longer delivers cold air to the first refrigeration chamber, but starts to extract air in the first refrigeration chamber. The air in the first refrigeration chamber is guided to the exhaust air duct 120 through the first refrigeration duct 110 and discharged, thereby extracting moisture in the first refrigeration chamber and reducing the humidity in the first refrigeration chamber, thereby avoiding the problem of food deterioration caused by excessive humidity.

[0039] By switching the fan 200 in both forward and reverse directions, the internal environment of the refrigerator is intelligently controlled. Users can choose between cooling and dehumidification modes to meet the storage requirements of different ingredients. The reverse dehumidification mode effectively reduces humidity while maintaining low temperatures.

[0040] In an optional embodiment, the air duct plate 100 is integrally formed with multiple interconnected air ducts. The one-piece design makes the structure of the air duct plate 100 more compact, reduces space occupancy, reduces the assembly environment, and has good sealing performance of the air duct; in another optional embodiment, the air duct plate 100 includes a front cover plate and a rear cover plate, which are combined to form a closed channel for easy maintenance and cleaning. The specific processing method to be adopted can be determined according to the usage scenario and needs, and this embodiment does not make specific limitations on this.

[0041] In an alternative embodiment, reference Figure 2 and Figure 4As shown, a first damper 111 is provided in the first cooling air duct 110, and a second damper 121 is provided in the exhaust air duct 120. When the fan 200 is in the forward rotation state, the first damper 111 is opened and the second damper 121 is closed. When the fan 200 is in the reverse rotation state, both the first damper 111 and the second damper 121 are opened.

[0042] In this embodiment, when the fan 200 rotates forward, the first damper 111 opens, allowing cold air to flow from the first refrigeration duct 110 into the first refrigeration chamber to cool the first refrigeration chamber. At the same time, the second damper 121 is closed to ensure that the exhaust duct 120 has good thermal insulation performance and prevent untreated air (such as external hot air or moisture) from entering the first refrigeration chamber through the exhaust duct 120.

[0043] When the fan 200 reverses, although the refrigeration system is not working, the first damper 111 and the second damper 121 are both open, allowing the humid air in the first refrigeration chamber to be discharged through the first refrigeration duct 110 and the exhaust duct 120 under the action of the fan 200, thereby dehumidifying the first refrigeration chamber.

[0044] In an optional embodiment, the air duct assembly is provided with a humidity sensor, which is used to detect the humidity parameter of the first refrigeration chamber. The fan 200 is configured to switch to a reverse state when the humidity parameter is greater than or equal to a preset humidity, and to switch to a forward state when the humidity parameter is less than a preset humidity.

[0045] In this embodiment, the humidity sensor can continuously monitor the temperature parameters of the first refrigerating chamber and transmit the data to the control system, which compares the received humidity parameters with the preset humidity threshold.

[0046] If the humidity parameter is greater than or equal to the preset humidity threshold, it indicates that the humidity in the first refrigerated room is too high and needs to be dehumidified; if the humidity parameter is less than the preset humidity threshold, it indicates that the humidity in the first refrigerated room is appropriate.

[0047] When dehumidification is required, the control system issues a command to switch the fan 200 to the reverse rotation state. At this time, the opening of the first damper 111 and the second damper 121 coordinates with the reverse rotation of the fan 200 to achieve air exhaust and dehumidification. When the humidity is appropriate or cooling is required, the control system issues a command to switch the fan 200 to the forward rotation state. At this time, the first damper 111 opens and the second damper 121 closes, and the fan 200 delivers cooled air into the first refrigerated compartment.

[0048] It should be noted that the preset humidity can be reasonably set or adjusted according to the storage requirements of the food in the first refrigerating chamber and the environmental adjustment, and this embodiment does not specifically limit this.

[0049] In an alternative embodiment, reference Figure 2 and Figure 5 As shown, the air outlet of the exhaust duct 120 is connected to the side wall of the duct plate 100, and the moisture is discharged from the side wall of the duct plate 100. The duct plate 100 is usually located at the back of the refrigerator, so as to discharge the moisture in the first refrigerating chamber to the outside of the refrigerator through the air outlet, thereby reducing the humidity in the first refrigerating chamber.

[0050] It is understandable that if the first cooling duct 110 and the exhaust duct 120 are located on the same side of the fan 200 or intersect with each other, airflow conflicts or vortices may occur, affecting airflow and reducing the dehumidification effect. Therefore, in this embodiment, the first cooling duct 110 and the exhaust duct 120 are located on both sides of the fan 200, so that when the fan 200 is reversed for dehumidification, the moisture in the first cooling duct 110 can be better discharged through the exhaust duct 120, reducing the resistance of the air flow inside the duct, reducing energy loss during airflow discharge, and making exhaust smoother. This improves the extraction efficiency of the fan 200, thereby improving the dehumidification effect.

[0051] In an alternative embodiment, reference Figure 2 and Figure 4 As shown, at least one of the first cooling air duct 110 and the exhaust air duct 120 is provided with an arcuate segment 101. Compared with a straight segment, the arcuate segment 101 can guide the airflow more smoothly, reduce friction and collision between the airflow and the air duct wall, and make the airflow pass through the air duct more smoothly. This reduces unnecessary eddy currents and turbulence, and reduces energy loss of the airflow in the air duct, thereby improving cooling and dehumidification efficiency. Specifically, the shape and size of the arcuate segment 101 can be determined according to the internal layout of the refrigerator and the airflow requirements.

[0052] The refrigeration fan 200 in a conventional refrigerator typically employs a centrifugal fan. However, in the embodiment of the present application, the fan 200 may employ an axial flow fan, which has a better airflow guidance effect. When the fan 200 rotates forward, it generates airflow along the first refrigeration duct 110, pushing cold air into the first refrigerated compartment. When the fan 200 rotates reversely, it generates airflow along the exhaust duct 120, pushing humid air out through the exhaust duct 120. By combining the axial flow fan with the air duct design and the opening and closing of the corresponding damper, the fan 200 can achieve a design in which forward rotation blows air and reverse rotation sucks air, thereby achieving a dehumidification effect.

[0053] In an alternative embodiment, reference Figure 1 and Figure 3 As shown, the air duct assembly further forms a second cooling air duct 130, the second cooling air duct 130 is communicated with the air supply air duct 140, and the second cooling air duct 130 is communicated with the second refrigerating chamber to transport cold air into the second refrigerating chamber.

[0054] In this embodiment, the refrigerator's cold storage chamber may include a first cold storage chamber and a second cold storage chamber. The first cold storage chamber and the second cold storage chamber are separated by a drawer. The first cold storage chamber can be used to store food that requires high low-temperature drying, such as dried fruits or medicines, and the second cold storage chamber is used to store other food.

[0055] For example, the second cooling air duct 130 is connected to the air supply duct 140, and when the fan 200 rotates forward for cooling, cold air is input into the second refrigeration chamber for cooling.

[0056] In an alternative embodiment, reference Figure 1 and Figure 3 As shown, fan 200 is located at the intersection of the supply air duct 140, the first cooling air duct 110, the second cooling air duct 130, and the exhaust air duct 120. This allows for more efficient distribution and utilization of cold air, reducing airflow losses within the ducts. Furthermore, placing fan 200 at the intersection saves space within the refrigerator, making the duct assembly more compact and efficient, thereby reducing the overall size of the refrigerator and improving space utilization.

[0057] In an alternative embodiment, reference Figure 1 and Figure 3 As shown, the second cooling air duct 130 is provided with a third damper 131. When the fan 200 is in the forward rotation state, the third damper 131 is opened, and when the fan 200 is in the reverse rotation state, the third damper 131 is closed.

[0058] In this embodiment, when the fan 200 is in the forward rotation state for cooling, the third damper 131 is designed to automatically open, allowing cold air to flow smoothly into the second refrigerating chamber through the second cooling air duct 130, thereby meeting the cooling needs of the second refrigerating chamber. When the fan 200 is in the reverse rotation state for dehumidifying the first refrigerating chamber, the third damper 131 automatically closes to prevent moisture from the first refrigerating chamber from entering the second refrigerating chamber.

[0059] In an alternative embodiment, reference Figure 1 and Figure 3 As shown, the number of second refrigeration ducts 130 can be multiple, for example, the number of second refrigeration ducts 130 is two, and the two second refrigeration ducts 130 extend to both sides above the air duct plate 100 respectively, which can improve the refrigeration efficiency of the second cold storage room and make the airflow more uniform.

[0060] Similarly, the number of the first cooling air duct 110 and the exhaust air duct 120 can be designed to be multiple according to needs, which is not specifically limited in this embodiment.

[0061] The air duct assembly provided in the embodiment of the present application includes an air duct plate 100 and a fan 200. The air duct plate 100 defines an interconnected air supply duct 140, a first cooling duct 110, and an exhaust duct 120. The first cooling duct 110 is used to connect to the first refrigeration chamber. The fan 200 is disposed in the air supply duct 140 and is adapted to switch between a forward rotation state and a reverse rotation state. When the fan 200 is in the forward rotation state, the fan 200 is adapted to deliver cold air into the first cooling duct 110. When the fan 200 is in the reverse rotation state, the fan 200 is adapted to discharge the air in the first refrigeration chamber sequentially through the first cooling duct 110 and the exhaust duct 120. Due to the forward and reverse rotation design of the fan 200, the first refrigeration chamber is cooled during forward rotation and dehumidified during reverse rotation, thereby reducing the air humidity in the first refrigeration chamber.

[0062] The air duct assembly of this embodiment can achieve platformization and standardization through the design and selection of the fan 200 and the design of the exhaust duct 120 without changing the existing air duct layout, and minimize the transformation cost to achieve a better dehumidification effect.

[0063] In a second aspect, an embodiment of the present application further provides a refrigerator, which includes an air duct assembly as in the above embodiment.

[0064] Illustratively, the refrigerator of this embodiment may include a single-door refrigerator or a multi-door refrigerator, etc. In addition to the refrigeration chamber, the refrigerator may also include a freezer chamber, which is not specifically limited in this embodiment.

[0065] It can be understood that if the air duct assembly has the beneficial effects of the above embodiment, then the refrigerator will correspondingly have the beneficial effects of the above embodiment. Its specific implementation method can refer to the above embodiment, and this embodiment will not be repeated.

[0066] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0067] Finally, it should be noted that the above embodiments are intended only to illustrate the present application and are not intended to limit the present application. Although the present application has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications, or equivalent substitutions of the technical solutions of the present application do not depart from the spirit and scope of the technical solutions of the present application and are intended to be covered by the scope of protection of the present application.

Claims

1. An air duct assembly, characterized in that: include: An air duct plate (100), wherein the interior of the air duct plate (100) defines an air supply duct (140), a first refrigeration duct (110), and an exhaust duct (120) that are interconnected, wherein the first refrigeration duct (110) is used to connect to the first refrigeration chamber; A fan (200) is arranged in the air supply duct (140), and the fan (200) is suitable for switching between a forward rotation state and a reverse rotation state. When the fan (200) is in the forward rotation state, the fan (200) is suitable for delivering cold air into the first refrigeration duct (110); when the fan (200) is in the reverse rotation state, the fan (200) is suitable for discharging the air in the first refrigeration chamber through the first refrigeration duct (110) and the exhaust duct (120) in sequence.

2. The air duct assembly according to claim 1, characterized in that: A first damper (111) is provided in the first cooling air duct (110), and a second damper (121) is provided in the exhaust air duct (120); when the fan (200) is in the forward rotation state, the first damper (111) is opened and the second damper (121) is closed; when the fan (200) is in the reverse rotation state, both the first damper (111) and the second damper (121) are opened.

3. The air duct assembly according to claim 1, characterized in that: The air duct assembly is provided with a humidity sensor, which is used to detect the humidity parameter of the first refrigeration chamber. The fan (200) is configured to switch to the reverse state when the humidity parameter is greater than or equal to a preset humidity, and to switch to the forward state when the humidity parameter is less than the preset humidity.

4. The air duct assembly according to claim 1, characterized in that: The air outlet of the exhaust air duct (120) is connected to the side wall of the air duct plate (100).

5. The air duct assembly according to claim 1, characterized in that: The first cooling air duct (110) and the exhaust air duct (120) are respectively located on both sides of the fan (200); And / or, at least one of the first cooling air duct (110) and the exhaust air duct (120) is provided with an arc segment (101).

6. The air duct assembly according to claim 1, characterized in that: The fan (200) is an axial flow fan.

7. The air duct assembly according to any one of claims 1 to 6, characterized in that: The air duct assembly also forms a second cooling air duct (130), the second cooling air duct (130) is connected to the air supply air duct (140), and the second cooling air duct (130) is connected to the second refrigeration chamber to transport cold air into the second refrigeration chamber.

8. The air duct assembly according to claim 7, characterized in that: The fan (200) is located at the intersection of the air supply duct (140), the first cooling duct (110), the second cooling duct (130) and the exhaust duct (120).

9. The air duct assembly according to claim 7, characterized in that: The second cooling air duct (130) is provided with a third air door (131). When the fan (200) is in the forward rotation state, the third air door (131) is opened, and when the fan (200) is in the reverse rotation state, the third air door (131) is closed.

10. A refrigerator, characterized in that: The refrigerator comprises the air duct assembly according to any one of claims 1 to 9.

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