Door body assembly and refrigerator

Abstract

The utility model relates to the technical field of refrigeration, and discloses a door body assembly and a refrigerator. The door body assembly comprises a door body and a flow guide cover. The flow guide cover is detachably arranged on the surface of the door body, and a flow guide space is defined by the flow guide cover and the door body. The flow guide cover comprises an inflow port and an outflow port which are communicated with the flow guide space. And the flow guide cover is used for enabling gas to flow into the flow guide space from the flow inlet and enabling the gas to flow out from the flow outlet after flowing through the surface of the door body. According to the door body assembly and the refrigerator, condensation can be effectively prevented from being generated on the outer surface of the door body, the use volume of the refrigerator is increased, and the use requirements of users are met.

Description

Technical Field

[0001] The present application relates to the field of refrigeration technology, for example, to a door assembly and a refrigerator. Background Art

[0002] At present, users have higher and higher demands for the usable volume of refrigerators, so thin-walled and large-volume refrigerators are one of the main development directions. However, the thinning of the refrigerator body and door will cause condensation on the outer surface of the refrigerator. Especially in the rainy weather in the south and the high humidity weather in summer, the outer surface of ultra-thin refrigerators is prone to condensation.

[0003] In the related art, a vacuum insulation panel is provided on the refrigerator to increase the thermal resistance and play a role in heat preservation and insulation.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0005] The related art uses vacuum insulation panels for heat preservation, which increases the cost and also has the risk of boundary effect. Moreover, when the outside humidity is relatively high, beads or even running water condensation will still appear on the outer surface of the refrigerator door, which is not conducive to the user experience.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0007] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0008] The embodiments of the present disclosure provide a door assembly and a refrigerator, which can effectively prevent condensation from forming on the outer surface of the door body, thereby increasing the usable volume of the refrigerator and meeting the usage needs of users.

[0009] In some embodiments, a door body assembly is provided, including: a door body body; a deflector cover, which is detachably arranged on the surface of the door body body and defines a deflector space together with the door body body, and the deflector cover includes an inlet and an outlet connected to the deflector space; wherein the deflector cover is used to allow gas to flow from the inlet into the deflector space, and to allow the gas to flow through the surface of the door body and then flow out from the outlet.

[0010] Optionally, the air guide cover also includes: a mounting shell, the inlet and the outlet are both arranged on the mounting shell; a guide rib, which is arranged on the side of the mounting shell facing the door body, and the guide rib extends from the inlet to the outlet; wherein the door body is detachably connected to the mounting shell and / or the guide rib.

[0011] Optionally, the door body is detachably connected to the mounting shell to achieve detachable connection between the air deflector and the door body.

[0012] Optionally, the door body is detachably connected to the guide rib to achieve a detachable connection between the guide cover and the door body.

[0013] Optionally, the door body, the mounting shell and the guide ribs can be detachably connected to achieve a detachable connection between the guide cover and the door body.

[0014] Optionally, the bottom of the mounting shell protrudes from the door body and is arranged below the door body; the inlet is located at the bottom of the mounting shell, and the outlet is located at the top of the mounting shell.

[0015] Optionally, two flow outlets are provided. The two flow outlets are respectively located on both sides of the top of the mounting shell.

[0016] Optionally, the door assembly further includes: a latching protrusion, which is arranged on the door body; and a buckle, which is arranged on the air deflector and is engaged with the latching protrusion.

[0017] Optionally, the latch is arranged on the surface of the door body, and the buckle is arranged on the guide rib and corresponds to the latch.

[0018] Optionally, the latch is disposed on the top or bottom of the door body, and the buckle is disposed on the mounting shell and corresponds to the latch.

[0019] Optionally, the refrigerator further comprises a partition, which is arranged on a mounting shell of the air deflector, and the partition is located between the vent and the inlet, so as to separate the vent and the inlet.

[0020] Optionally, the thickness of the door body ranges from 50 mm to 80 mm.

[0021] In some embodiments, a refrigerator is provided, comprising: a cabinet; and a door assembly as in any of the previous embodiments, disposed on the cabinet.

[0022] Optionally, the refrigerator also includes: a press chamber, which is arranged in the box body, and the press chamber includes an exhaust port and an air inlet, and the exhaust port is connected to the inlet of the air deflector; the air inlet is used to connect the inner and outer spaces of the press chamber; wherein, the air inlet is used to allow external air to enter the press chamber, and the exhaust port is used to discharge the gas in the press chamber and flow into the deflection space through the inlet.

[0023] Optionally, the refrigerator further includes: an exhaust channel, which is arranged at the bottom of the box body, one end of the exhaust channel is connected to the exhaust port, and the other end of the exhaust channel is connected to the inlet.

[0024] Optionally, the refrigerator also includes: a ventilation port, which is opened at the bottom of the air deflector and located below the door body; an air inlet channel, which is arranged at the bottom of the box body, one end of the air inlet channel is connected to the air inlet port, and the other end of the air inlet channel is connected to the ventilation port.

[0025] Optionally, a plurality of vents are provided.

[0026] Optionally, the air inlet channel and the air exhaust channel are adjacent to and independently arranged.

[0027] Optionally, when the air guide cover includes guide ribs, the guide ribs close to the vents are provided with avoidance bends for avoiding the vents.

[0028] The door assembly and refrigerator provided by the embodiments of the present disclosure can achieve the following technical effects:

[0029] The door assembly provided by the embodiment of the present disclosure can be installed on the surface of the door body to prevent condensation from forming on the outer surface of the door body when the outside humidity is high, by detachably setting a deflector on the surface of the door body. When the outside humidity is low, the deflector is removed from the door body to save installation space. When applied to a refrigerator, the deflector prevents condensation from forming on the outer surface of the door body, which helps to reduce the thickness of the door body, thereby increasing the usable volume of the refrigerator and meeting the needs of users.

[0030] The door assembly provided by the embodiment of the present disclosure defines a flow guide space through a flow guide cover and a door body, and the flow guide cover includes an inlet and an outlet connected to the flow guide space, so that gas can flow into the flow guide space from the inlet, and the gas flows through the surface of the door body and then flows out of the flow guide space from the outlet. The flow guide cover allows gas to flow from the inlet into the flow guide space, and allows gas to flow through the surface of the door body and then flow out from the outlet, so that gas can blow on the outer surface of the door body, preventing condensation from forming on the outer surface of the door body, and enhancing the anti-condensation capability of the door body.

[0031] The refrigerator provided by the embodiments of the present disclosure includes a door body assembly as in any of the previous embodiments, which can prevent condensation from forming on the outer surface of the door body while increasing the usable volume of the refrigerator, thereby improving the user experience.

[0032] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0034] Figure 1 is a partial cross-sectional structural schematic diagram of a door assembly provided by an embodiment of the present disclosure;

[0035] Figure 2 yes Figure 1 The enlarged view of point A in the middle;

[0036] Figure 3 is a schematic structural diagram of a shroud provided in an embodiment of the present disclosure;

[0037] Figure 4 yes Figure 3 A schematic diagram of a partial structure of a flow guide rib provided in the illustrated embodiment;

[0038] Figure 5 is a structural schematic diagram of a refrigerator provided by another embodiment of the present disclosure from one perspective;

[0039] Figure 6 is a partial structural schematic diagram of a refrigerator provided by another embodiment of the present disclosure from another perspective;

[0040] Figure 7 is a schematic diagram of anti-condensation of a door assembly of a refrigerator in an embodiment of the present disclosure;

[0041] Figure 8 It is a curve diagram showing the relationship between the convection coefficient between the air and the outer surface of the refrigerator door and the temperature of the outer surface of the refrigerator door in the embodiment of the present disclosure.

[0042] Reference numerals:

[0043] 100: door assembly; 101: door body; 102: flow guide space; 103: convex; 104: buckle;

[0044] 200: air guide cover; 201: inlet; 202: outlet; 203: mounting shell; 204: guide rib; 2041: avoidance bend; 205: vent;

[0045] 300: refrigerator; 301: press chamber; 3011: exhaust port; 3012: air inlet; 302: exhaust passage; 303: air inlet passage; 304: partition; 305: cabinet. DETAILED DESCRIPTION

[0046] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0047] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure 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 terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0048] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0049] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0050] Unless otherwise stated, the term "plurality" means two or more.

[0051] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0052] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0053] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0054] Combination Figures 1 to 6 As shown, an embodiment of the present disclosure provides a door body assembly 100. The door body assembly 100 includes a door body 101 and a deflector 200. The deflector 200 is detachably arranged on the surface of the door body 101, and the deflector 200 and the door body 101 define a deflection space 102. The deflector 200 includes an inlet 201 and an outlet 202 connected to the deflection space 102. The deflector 200 is used to allow gas to flow from the inlet 201 into the deflection space 102, and to allow gas to flow through the surface of the door body 101 and then flow out from the outlet 202.

[0055] The door assembly 100 provided in the embodiment of the present disclosure can realize that when the external humidity is high, the air deflector 200 is installed on the surface of the door body 101 to prevent condensation from forming on the outer surface of the door body 101 by detachably setting the air deflector 200 on the surface of the door body 101. When the external humidity is low, the air deflector 200 is removed from the door body 101 to save installation space.

[0056] When the door assembly 100 is applied to the refrigerator 300, the air deflector 200 is used to prevent condensation from forming on the outer surface of the door body 101, which helps to reduce the thickness of the door body 101, thereby increasing the usable volume of the refrigerator 300 and meeting the user's usage needs. After the thickness of the door body 101 is thinned, the door body 101 can be used alone when the external humidity is low, such as in the dry spring. When the external humidity is high, such as the rainy weather in the south or the high humidity weather in summer, the air deflector 200 is installed on the surface of the thinned door body 101 to prevent condensation from forming on the surface of the door body 101.

[0057] The door assembly 100 provided in the embodiment of the present disclosure defines a flow guiding space 102 through a flow guiding cover 200 and a door body 101. The flow guiding cover 200 includes an inlet 201 and an outlet 202 communicated with the flow guiding space 102, so that gas can flow into the flow guiding space 102 from the inlet 201, and the gas flows through the surface of the door body 101 and then flows out of the flow guiding space 102 from the outlet 202. The flow guiding cover 200 allows gas to flow into the flow guiding space 102 from the inlet 201, and allows gas to flow through the surface of the door body 101 and then flow out from the outlet 202, so that gas can blow on the outer surface of the door body 101, thereby preventing condensation from forming on the outer surface of the door body 101 and enhancing the anti-condensation capability of the door body 101.

[0058] It can be understood that the door body 101 can adopt the door body structure of the refrigerator 300 in the prior art, which will not be described in detail.

[0059] In some embodiments, the thickness of the door body 101 ranges from 50 mm to 80 mm. For example, the thickness of the door body 101 is 50 mm, 60 mm, 70 mm, or 80 mm.

[0060] For example, when the thickness of the door body 101 is 50 mm, the thickness of the door body 101 of the refrigerator 300 is reduced, thereby achieving the effect of thin wall and large volume of the refrigerator 300, and meeting the use requirements of users. When used under the condition of high external humidity, the deflector 200 is installed on the outside of the door body 101, so that the gas flows from the inlet 201 into the guide space 102, and the gas flows evenly through the surface of the door body 101, and finally flows out of the guide space 102 from the outlet 202, so that the thickness of the door body 101 is reduced while improving the anti-condensation ability of the surface of the door body 101, thereby improving the use experience of users.

[0061] Combination Figures 1 to 4 As shown, in some embodiments, the air guide cover 200 further includes a mounting shell 203 and a guide rib 204. The inlet 201 and the outlet 202 are both disposed in the mounting shell 203. The guide rib 204 is disposed on a side of the mounting shell 203 facing the door body 101. The guide rib 204 extends from the inlet 201 to the outlet 202.

[0062] In this embodiment, the guide rib 204 is arranged on the side of the mounting shell 203 facing the door body 101, that is, the guide rib is located in the guide space 102 between the guide cover 200 and the surface of the door body 101, and is used to guide the flow direction of the gas in the guide space 102, so that the gas flows evenly through the surface of the door body 101, so as to prevent condensation from occurring on the surface of the door body 101.

[0063] In this embodiment, the guide ribs 204 extend from the inlet 201 to the outlet 202 so that the gas flows evenly through the surface of the door body 101 and then flows out from the outlet 202 to prevent condensation from forming on the surface of the door body 101.

[0064] It is understood that the number and shape of the guide ribs 204 are not limited. For example, the number of the guide ribs 204 is multiple. For another example, the shape of the guide rib 204 near the inlet 201 is a curved structure or a straight structure extending toward the outlet 202. For another example, the sides of the multiple guide ribs 204 near the outlet 202 are all straight structures and parallel.

[0065] In some embodiments, the door body 101 is detachably connected to the mounting shell 203 to achieve a detachable connection between the air deflector 200 and the door body 101 .

[0066] In some embodiments, the door body 101 and the guide rib 204 are detachably connected to achieve a detachable connection between the guide cover 200 and the door body 101 .

[0067] In some embodiments, the door body 101 and the mounting shell 203 and the guide rib 204 can be detachably connected to achieve a detachable connection between the guide cover 200 and the door body 101 .

[0068] Combination Figure 5 and Figure 6 As shown, in some embodiments, the bottom of the mounting shell 203 protrudes from the door body 101, and the bottom of the mounting shell 203 is surrounded below the door body 101. The inlet 201 is located at the bottom of the mounting shell 203, and the outlet 202 is located at the top of the mounting shell 203.

[0069] In this embodiment, when the door assembly 100 is applied to the refrigerator 300, along the direction from the top to the bottom of the refrigerator 300, the bottom of the mounting shell 203 protrudes from the door body 101, and the bottom of the mounting shell 203 is surrounded by the bottom of the door body 101, and the inlet 201 is located at the bottom of the mounting shell 203, that is, the inlet 201 is located below the door body 101, so that after the gas flows from the inlet 201 into the guide space 102, it is uniformly diffused to the surface of the door body 101 along the direction from the bottom to the top of the refrigerator 300, thereby improving the uniformity and comprehensiveness of the surface of the door body 101. By locating the outflow port 202 at the top of the mounting shell 203, the contact area with the surface of the door body 101 during the gas flow process is increased, thereby improving the anti-condensation effect of the door body 101.

[0070] Combination Figure 3 As shown, optionally, two flow outlets 202 are provided. The two flow outlets 202 are respectively located on both sides of the top of the mounting shell 203 to facilitate uniform flow of gas.

[0071] Combination Figures 1 to 4 As shown, in some embodiments, the door assembly 100 further includes a protrusion 103 and a buckle 104. The protrusion 103 is disposed on the door body 101. The buckle 104 is disposed on the air duct 200, and the buckle 104 is engaged with the protrusion 103.

[0072] In this embodiment, the buckle 104 is engaged with the latch protrusion 103 to achieve a detachable connection between the air deflector 200 and the door body 101, which is convenient for users.

[0073] Combination Figures 1 to 4As shown, optionally, the protrusion 103 is arranged on the surface of the door body 101 , and the buckle 104 is arranged on the guide rib 204 and corresponds to the protrusion 103 .

[0074] Optionally, the protrusion 103 is disposed on the top or bottom of the door body 101 , and the buckle 104 is disposed on the mounting shell 203 and corresponds to the protrusion 103 .

[0075] It is understandable that the detachable connection between the door assembly 100 and the air deflector 200 may also be achieved by other means, such as threaded connection.

[0076] Combination Figures 1 to 6 As shown, the embodiment of the present disclosure further provides a refrigerator 300. The refrigerator 300 includes a box body 305 and a door assembly 100 as in any of the previous embodiments. The door assembly 100 is disposed in the box body 305.

[0077] The refrigerator 300 provided in the embodiment of the present disclosure includes a door body assembly 100 as in any of the previous embodiments, which can prevent condensation from forming on the outer surface of the door body 101 while increasing the usable volume of the refrigerator 300, thereby improving the user experience.

[0078] In actual application, a detachable air deflector 200 is provided on the surface of the door body 101 of the refrigerator 300, and the appearance of the refrigerator 300 can be changed by the surface design of the air deflector 200. For example, the user can select an air deflector 200 with different appearances according to his or her preferences.

[0079] It can be understood that the door body 101 and the box body 305 are connected in a manner using existing technology, such as through a hinge connection.

[0080] Combination Figure 5 As shown, in some embodiments, the refrigerator 300 further includes a press chamber 301. The press chamber 301 is disposed in the box body 305. The press chamber 301 includes an exhaust port 3011 and an air inlet 3012. The exhaust port 3011 of the press chamber 301 is connected to the inlet 201 of the air guide cover 200. The air inlet 3012 of the press chamber 301 is used to connect the inner and outer spaces of the press chamber 301. Among them, the air inlet 3012 is used to allow external air to enter the press chamber 301, and the exhaust port 3011 is used to allow the gas in the press chamber 301 to be discharged and flow into the guide space 102 through the inlet 201.

[0081] In this embodiment, the compressor chamber 301 includes an exhaust port 3011 and an air inlet 3012. The air inlet 3012 of the compressor chamber 301 is used to connect the inner and outer spaces of the compressor chamber 301, realize the circulation of gas inside and outside the compressor chamber 301, and then realize that the external gas enters the compressor chamber 301 through the air inlet 3012 for heat exchange. The exhaust port 3011 of the compressor chamber 301 is connected with the inlet 201 of the air guide cover 200, so that the hot air exchanged by the compressor chamber 301 is discharged from the exhaust port 3011, and the hot air flows into the guide space 102 through the inlet 201 and flows to the surface of the door body 101, so that the heat dissipation of the compressor chamber 301 is realized while improving the anti-condensation ability of the door body 101.

[0082] It is understandable that the device installed in the compressor compartment 301 of the refrigerator 300 adopts the existing technology, which will not be described in detail. For example, a compressor, a fan, etc. are installed in the compressor compartment 301 of the refrigerator 300. The fan can drive the external air to enter the compressor compartment 301 through the air inlet 3012 for heat exchange, and drive the hot air after heat exchange to be discharged from the exhaust port 3011 and flow into the guide space 102.

[0083] Combination Figure 5 and Figure 6 As shown, in some embodiments, the refrigerator 300 further includes an exhaust passage 302. The exhaust passage 302 is disposed at the bottom of the box body 305. One end of the exhaust passage 302 is communicated with the exhaust port 3011, and the other end of the exhaust passage 302 is communicated with the inlet 201.

[0084] In this embodiment, the hot air discharged from the press chamber 301 flows from the bottom of the box body 305 to the inlet 201 of the air guide cover 200 through the air exhaust channel 302. The air guide cover 200 restricts and straightens the hot air, so that the hot air is blown to the outer surface of the door body 101 to prevent condensation from forming on the surface of the door body 101.

[0085] In actual application, the hot air discharged from the compressor chamber 301 passes through the exhaust channel 302 at the bottom of the box body 305, enters the bottom of the air guide cover 200, and flows toward the top of the air guide cover 200 under the guiding action of the guide ribs 204. After passing through the air guide cover 200, it blows on the surface of the door body 101, thereby enhancing the anti-condensation ability of the door body 101.

[0086] Combination Figure 1 , Figure 3 , Figure 5 and Figure 6As shown, in some embodiments, the refrigerator 300 further includes a vent 205 and an air inlet channel 303. The vent 205 is provided at the bottom of the air guide cover 200, and the vent 205 is located below the door body. The air inlet channel 303 is provided at the bottom of the box body 305. One end of the air inlet channel 303 is communicated with the air inlet 3012, and the other end of the air inlet channel 303 is communicated with the vent 205.

[0087] In this embodiment, by opening a vent 205 at the bottom of the air deflector 200, and the vent 205 is located below the door body, the external air can flow from the bottom of the door body to the bottom of the box body 305 through the vent 205. The air inlet channel 303 is arranged at the bottom of the box body 305, one end of the air inlet channel 303 is connected to the air inlet 3012, and the other end of the air inlet channel 303 is connected to the vent 205, so that the external air flows from the bottom of the door body into the air inlet channel 303, and then flows into the compressor chamber 301 through the air inlet channel 303 for heat exchange.

[0088] Combination Figure 1 , Figure 3 , Figure 5 and Figure 6 As shown, optionally, a plurality of vents 205 are provided to increase the ventilation area.

[0089] Combination Figure 5 and Figure 6 As shown, optionally, the air inlet channel 303 is adjacent to the air exhaust channel 302 and is independently arranged. The bottom of the box body 305 is divided into two parts by the air inlet channel 303 and the air exhaust channel 302. When the refrigerator 300 is working, the external air is sucked into the compressor chamber 301 through the vent 205 and the air inlet channel 303 in turn. After the gas in the compressor chamber 301 is heat-exchanged, the hot air carrying heat enters the inlet 201 of the air guide cover 200 through the air exhaust port 3011 and the air exhaust channel 302 in turn, and blows toward the surface of the door body 101 to prevent condensation from forming on the surface of the door body 101.

[0090] Combination Figure 3 As shown, in some embodiments, when the air guide cover 200 includes the air guide rib 204 , the air guide rib 204 close to the vent 205 is provided with an avoidance bend 2041 for avoiding the vent 205 .

[0091] In this embodiment, the avoidance bend 2041 can not only avoid the vent 205, but also make the vent 205 and the inlet 201 of the air guide cover 200 independent of each other, thereby achieving independent flow of gas in the air inlet channel 303 and the air exhaust channel 302. In other words, the gas flow path of the external air entering the air inlet channel 303 after passing through the vent 205 and entering the compressor chamber 301 for heat exchange is independent of the gas flow path of the hot air in the compressor chamber 301 being discharged into the air exhaust channel 302 and entering the guide space 102 through the inlet 201 of the air guide cover 200.

[0092] Combination Figure 3 As shown, optionally, the refrigerator 300 also includes a partition 304, which is arranged on the mounting shell 203 of the air deflector 200, and the partition 304 is located between the vent 205 and the inlet 201, so as to separate the vent 205 and the inlet 201, thereby achieving independence between the vent 205 and the inlet 201.

[0093] Combination Figure 7 and Figure 8 As shown, the principle that the door assembly of the refrigerator of the present application can achieve anti-condensation is as follows:

[0094] By combining the first law of thermodynamics, Fourier's law and Newton's cooling formula, we can get:

[0095]

[0096] Wherein, t1 is the external environment temperature; t2 is the temperature of the outer surface of the refrigerator door; t3 is the temperature of the inner surface of the refrigerator door; h1 is the convection coefficient between the air and the outer surface of the refrigerator door; λ is the thermal conductivity of the door insulation layer; L is the thickness of the refrigerator door insulation layer.

[0097] According to formula (1), we can get:

[0098] h1=λ·(t2-t3) / (L·(t1-t2)) (2)

[0099] Since the refrigerator has set the compartment temperature, there is a strong heat exchange inside the compartment. It can be considered that the temperature t3 of the inner surface of the refrigerator door fluctuates slightly.

[0100] For example, the external environment temperature t1 is 32°C, the temperature t3 of the inner surface of the refrigerator door is -16°C, the thermal conductivity λ of the door insulation layer is 0.020W / (m·K), and the thickness L of the refrigerator door insulation layer is 50mm. The curve of the relationship between the convection coefficient h1 between the air and the outer surface of the refrigerator door and the temperature t2 of the outer surface of the refrigerator door is obtained as follows: Figure 8 shown. Figure 8The horizontal axis is the convection coefficient h1 between the air and the outer surface of the refrigerator door, unit: W / (m 2 ·K); the ordinate is the temperature t2 of the outer surface of the refrigerator door, unit: °C.

[0101] In this example, by adding a deflector to the outside of the refrigerator door, the hot air in the compressor compartment can be directed to the outer surface of the refrigerator door, thereby increasing the temperature t2 of the outer surface of the refrigerator door, and making it difficult for condensation to form on the outer surface of the door. Moreover, by operating the fan in the compressor compartment, the hot air discharged from the compressor compartment is accelerated to flow to the outer surface of the refrigerator door, thereby increasing the convection coefficient h1 between the air and the outer surface of the refrigerator door, that is, increasing the disturbance on the outer surface of the refrigerator door, increasing the air flow rate, and increasing the convective heat exchange intensity on the outer surface of the refrigerator door, so that more cold air is taken away from the refrigerator door, further increasing the temperature t2 of the outer surface of the door body, and effectively preventing condensation from forming on the outer surface of the refrigerator door.

[0102] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A door assembly, characterized in that: include: Door body; The deflector cover is detachably arranged on the surface of the door body and defines a deflector space with the door body, and the deflector cover includes an inlet and an outlet communicated with the deflector space; The deflector cover is used to allow the gas to flow from the inlet into the deflection space, and to allow the gas to flow through the surface of the door body and then flow out from the outlet.

2. The door assembly according to claim 1, characterized in that: The air deflector also includes: A mounting shell, wherein the inlet and the outlet are both arranged on the mounting shell; A guide rib is arranged on a side of the mounting shell facing the door body, and the guide rib extends from the inlet to the outlet; Wherein, the door body is detachably connected to the mounting shell and / or the guide rib.

3. The door assembly according to claim 2, characterized in that: The bottom of the installation shell protrudes from the door body and is arranged around the bottom of the door body; The inlet is located at the bottom of the mounting shell, and the outlet is located at the top of the mounting shell.

4. The door assembly according to any one of claims 1 to 3, characterized in that: Also includes: A clamping protrusion is arranged on the door body; The buckle is arranged on the air guide cover and is engaged with the clamping protrusion.

5. The door assembly according to any one of claims 1 to 3, characterized in that: The thickness of the door body ranges from 50mm to 80mm.

6. A refrigerator, characterized in that: include: Box; The door assembly as claimed in any one of claims 1 to 5 is arranged in a box body.

7. The refrigerator according to claim 6, characterized in that: Also includes: The press chamber is arranged in the box body, and includes an air outlet and an air inlet. The air outlet is connected to the inlet of the air guide cover; the air inlet is used to connect the inner and outer spaces of the press chamber; The air inlet is used to allow external air to enter the compressor chamber, and the air outlet is used to allow the gas in the compressor chamber to be discharged and flow into the guide space through the inlet.

8. The refrigerator according to claim 7, characterized in that: Also includes: The exhaust passage is arranged at the bottom of the box body, one end of the exhaust passage is connected with the exhaust port, and the other end of the exhaust passage is connected with the inlet.

9. The refrigerator according to claim 7, characterized in that: Also includes: The vent is opened at the bottom of the air guide cover and is located below the door body; The air inlet channel is arranged at the bottom of the box body, one end of the air inlet channel is connected to the air inlet, and the other end of the air inlet channel is connected to the vent.

10. The refrigerator according to claim 9, characterized in that: When the air guide cover includes guide ribs, the guide ribs close to the vents are provided with avoidance bends for avoiding the vents.

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