Refrigerator

Abstract

The invention relates to the technical field of household appliances. The invention particularly relates to a refrigerator. The refrigerator comprises a refrigerator body and a door body, a storage chamber is formed in the refrigerator body, and an opening communicating with the storage chamber is formed in the refrigerator body; the door body is rotationally connected with the refrigerator body to open or close the opening, the door body comprises a door shell, a door inner container and a door end cover, and the door inner container is arranged on the side, facing the storage chamber, of the door shell and connected with the door shell; the door end cover is connected with the door shell and the door inner container, the door end cover, the door shell and the door inner container define a foaming cavity, the foaming cavity is filled with a foaming layer, and the door end cover is sunken towards the interior of the foaming cavity to form a hidden pull handle. And a conduction piece is arranged in the door body and located in the foaming cavity, the conduction piece is attached to the inner surface of the door end cover so that cold energy at the hidden pull handle can be transmitted to other positions, except the hidden pull handle, of the door end cover, and the heat conductivity coefficient of the conduction piece is larger than that of the door end cover. According to the refrigerator, the problem that condensation occurs at the hidden pull handle is solved.

Description

Technical Field

[0001] This application relates to the technical field of household electrical appliances, and particularly to a refrigerator. Background Art

[0002] As one of the core household appliances in modern families, the balance between the appearance design and functional performance of refrigerators has always been an important topic in manufacturing technology. In recent years, concealed pull handles (also known as embedded handles) have gradually become the mainstream design of high-end refrigerators due to their characteristics of simplicity, beauty, and space saving. However, the structural characteristics of concealed pull handles result in a significant reduction in the thickness of the refrigerator door body in the handle area, which in turn causes local condensation problems, seriously affecting the product reliability, energy efficiency performance, and user experience. Summary of the Invention

[0003] Some embodiments of this application provide a refrigerator that can solve the problem of condensation at the concealed pull handle.

[0004] To achieve the above object, some embodiments of this application provide a refrigerator, which includes:

[0005] A cabinet, in which a storage compartment is formed, and an opening communicating with the storage compartment is formed on the cabinet;

[0006] A door body, which is rotatably connected to the cabinet to open or close the opening, and the door body includes:

[0007] A door outer shell;

[0008] A door inner liner, which is disposed on the side of the door outer shell facing the storage compartment and is connected to the door outer shell;

[0009] Door end caps, which are respectively connected to the door outer shell and the door inner liner. The door end caps, the door outer shell, and the door inner liner enclose a foaming cavity, and a foaming layer is filled in the foaming cavity. The door end caps are recessed into the foaming cavity to form concealed pull handles;

[0010] Disposed inside the door body are:

[0011] A conduction member, which is located in the foaming cavity and is disposed in contact with the inner surface of the door end cap to transfer the cold quantity at the concealed pull handle to other positions of the door end cap except the concealed pull handle. The thermal conductivity coefficient of the conduction member is greater than that of the door end cap.

[0012] Since the conduction member is disposed in contact with the inner surface of the door end cap, and the thermal conductivity coefficient of the conduction member is greater than that of the door end cap, when a large amount of cold is transferred to the concealed pull handle and reaches the conduction member, the conduction member first undergoes local heat exchange within itself, that is, the cold at the position of the conduction member corresponding to the concealed pull handle is transferred to the positions of the conduction member corresponding to other parts of the door end cap except the concealed pull handle, so as to achieve uniform temperature of the conduction member. Then, according to the temperature difference between the conduction member and the door end cap, heat exchange occurs between the conduction member and the door end cap. Since the cold at the position of the conduction member corresponding to the concealed pull handle itself has been transferred to other positions of the conduction member, the cold transferred to the concealed pull handle can be reduced, thus avoiding the temperature of the concealed pull handle being lower than the dew point temperature due to a large amount of cold transferred at the concealed pull handle, and further achieving the purpose of preventing condensation at the concealed pull handle.

[0013] Moreover, compared with avoiding condensation at the concealed pull handle by increasing the thickness of the door body, the embodiment of the present application can reduce the thickness of the door body, making the door body meet the thin and light design. At the same time, the volume utilization rate of the refrigerator can be improved.

[0014] Compared with the related art in which the door end cap is directly made of a metal material to improve the aesthetics of the door body, that is, the door end cap is directly connected to the door seal, and the door seal is directly in contact with the storage compartment, i.e., the freezer or the refrigerator compartment. Since the thermal conductivity of the metal material is relatively good, the door end cap can directly transfer the cold at the door seal to the door end cap, thus reducing the overall temperature of the door end cap and increasing the risk of condensation on the entire door end cap. It can be seen that in this embodiment, the conduction member is disposed in the foaming cavity and in contact with the inner surface of the door end cap, and the thermal conductivity coefficient of the heat conducting member is greater than that of the door end cap. On the one hand, the door end cap can isolate the conduction member and the door seal, thus avoiding direct contact between the conduction member and the door seal and reducing the cold transferred to the door end cap. On the other hand, the conduction member can conduct the cold at the concealed pull handle in time, so as to prevent condensation at the concealed pull handle.

[0015] In some possible embodiments, the present embodiment provides a refrigerator, including:

[0016] A box body, a storage compartment is formed inside the box body, and an opening communicating with the storage compartment is formed on the box body;

[0017] A door body, the door body is rotatably connected to the box body to open or close the opening, and the door body includes:

[0018] A door outer shell;

[0019] A door inner liner, the door inner liner is disposed on the side of the door outer shell facing the storage compartment and is connected to the door outer shell;

[0020] Door end cap, the door end cap is respectively connected to the door outer shell and the door inner liner, the door end cap, the door outer shell and the door inner liner enclose a foaming cavity, and a foaming layer is filled in the foaming cavity. The door end cap is recessed into the foaming cavity to form a concealed pull handle;

[0021] The following are arranged inside the door body:

[0022] A conduction member, the conduction member is located in the foaming cavity, the conduction member is arranged in contact with the inner surface of the door end cap, the conduction member has a low-temperature region and a high-temperature region, the low-temperature region is the region corresponding to the concealed pull handle, and the high-temperature region is other regions of the door end cap except the concealed pull handle. The conduction member can perform heat exchange between the low-temperature region and the high-temperature region before heat exchange with the door end cap.

[0023] Since the high-temperature region and the low-temperature region on the conduction member will perform heat exchange with each other before the conduction member exchanges heat with the door end cap, it is possible to reduce the local temperature difference of the conduction member itself, thereby making the conduction member have a uniform temperature, and then perform heat exchange between the conduction member and the door end cap according to the temperature difference between the conduction member and the door end cap. In other words, when more cold quantity is transferred to the concealed pull handle and reaches the conduction member, the conduction member first performs local heat exchange within itself, that is, transfers the cold quantity at the conduction member corresponding to the concealed pull handle to the conduction member corresponding to other positions of the door end cap except the concealed pull handle, so as to achieve the uniform temperature of the conduction member, and then, according to the temperature difference between the conduction member and the door end cap, heat exchange occurs between the conduction member and the door end cap. Since the cold quantity at the position of the conduction member corresponding to the concealed pull handle has been transferred to other positions of the conduction member, it is possible to reduce the cold quantity transferred to the concealed pull handle, thereby avoiding the temperature of the concealed pull handle being lower than the dew point temperature due to more cold quantity transferred at the concealed pull handle, and further achieving the purpose of preventing condensation at the concealed pull handle.

[0024] In some possible embodiments, the shape of the conduction member matches the shape of the door end cap, and the conduction member is in contact with the entire inner surface of the door end cap.

[0025] Since the shape of the conduction member matches the shape of the door end cap and the conduction member is in contact with the entire inner surface of the door end cap, the door end cap can quickly transfer the heat in the high-temperature region to the low-temperature region, reducing the local temperature difference. At the same time, it can ensure that the heat diffuses evenly along the surface of the door end cap, avoiding heat accumulation or loss caused by local shape changes of the door end cap.

[0026] In some possible embodiments, the conduction member is a metal conduction member.

[0027] Since the thermal conductivity coefficient of the metal material is relatively high, when the conduction member is a metal conduction member, it can improve the heat conduction ability of the conduction member, thereby improving the effect of preventing condensation at the concealed pull handle.

[0028] In some possible embodiments, the conducting member is bonded to the inner surface of the door end cap.

[0029] Since the conducting member is bonded to the door end cap, it is possible to avoid designing connection structures on the door end cap and the conducting member, simplifying the processing technology of the door end cap and the conducting member.

[0030] In some possible embodiments, the door body further includes:

[0031] A metal wrapping layer, which is wrapped around the surface of the conducting member facing away from the door end cap, and the edge of the metal wrapping layer is connected to the inner surface of the door end cap.

[0032] In order to improve the connection stability between the door end cap and the conducting member, in this embodiment, a metal wrapping layer is provided on the surface of the conducting member facing away from the door end cap, and the edge of the metal wrapping layer is connected to the inner surface of the door end cap. On the one hand, it can improve the connection stability between the conducting member and the door end cap, and on the other hand, it can also improve the heat conduction performance of the door end cap.

[0033] In some possible embodiments, the conducting member extends to the door housing, and the conducting member is also disposed in contact with the inner surface of the door housing.

[0034] By extending the conducting member to the door housing and disposing it in contact with the inner surface of the door housing, the heat conduction performance of the door housing can be further improved.

[0035] In some possible embodiments, the door body further includes:

[0036] A heat insulation member, which is located in the foaming cavity and fixed to the inner surface of the door inner liner, and the thermal conductivity of the heat insulation member is less than that of the foaming layer.

[0037] Since a heat insulation member is fixedly provided on the surface of the door inner liner, and the thermal conductivity of the heat insulation member is less than that of the foaming layer, it is possible to better isolate the cold quantity passing through the door inner liner, thereby further reducing the cold quantity transmitted to the foaming layer, and further reducing the risk of condensation on the door body.

[0038] In some possible embodiments, the heat insulation member is a vacuum insulation panel.

[0039] Since the thermal conductivity of vacuum is between 0.004 W / m·K - 0.008 W / m·K, which is the insulating material with the lowest thermal conductivity, when the heat insulation member is a vacuum insulation panel, it can improve the heat insulation effect of the heat insulation member, further reduce the cold quantity transmitted to the door housing, and improve the anti-condensation effect of the door body.

[0040] In some possible embodiments, the cabinet includes:

[0041] The inner box liner encloses the storage compartment. An air outlet is provided at the upper edge of the inner box liner. A wind guiding protrusion is provided on the door inner liner corresponding to the air outlet. The wind guiding protrusion protrudes from the surface of the door inner liner in a direction away from the foaming cavity. The wind guiding protrusion has a hollow space, and the hollow space communicates with the foaming cavity to fill the foaming layer.

[0042] Since the wind guiding protrusion protrudes from the surface of the door inner liner in a direction away from the foaming cavity, the thickness of the door body corresponding to the wind guiding protrusion is relatively thick. Also, because the wind guiding protrusion has a hollow space that communicates with the foaming cavity to fill the foaming layer, by filling the foaming layer into the hollow space of the wind guiding protrusion, the amount of cold transferred to the door outer shell can be further reduced, thereby further reducing the risk of condensation on the door body.

[0043] In a possible implementation, the upper end of the heat insulation member extends to be close to the lower side of the wind guiding protrusion.

[0044] By extending the upper end of the heat insulation member to be close to the lower side of the wind guiding protrusion, the occurrence of air bubbles in the wind guiding protrusion can be avoided, ensuring the wind guiding strength of the wind guiding protrusion. Also, the deformation of the door inner liner can be avoided, ensuring the strength of the door inner liner.

[0045] Compared with the prior art, the technical effects of the present application:

[0046] Since the conduction member is arranged in contact with the inner surface of the door end cap and the thermal conductivity of the conduction member is greater than that of the door end cap, when more cold is transferred to the hidden pull handle and reaches the conduction member, the conduction member first undergoes its own local heat exchange, that is, the cold at the conduction member corresponding to the hidden pull handle is transferred to the conduction member corresponding to other positions of the door end cap except the hidden pull handle, thereby achieving the temperature equalization of the conduction member. Then, according to the temperature difference between the conduction member and the door end cap, heat exchange occurs between the conduction member and the door end cap. Since the cold at the conduction member corresponding to the hidden pull handle itself has been transferred to other positions of the conduction member, the amount of cold transferred to the hidden pull handle can be reduced, thereby avoiding the temperature of the hidden pull handle being lower than the dew point temperature due to more cold transferred at the hidden pull handle, and thus achieving the purpose of preventing condensation at the hidden pull handle.

[0047] Moreover, compared with avoiding condensation at the hidden pull handle by increasing the thickness of the door body, the embodiment of the present application can reduce the thickness of the door body, making the door body meet the lightweight design, and at the same time, can improve the volume utilization rate of the refrigerator.

[0048] Compared with directly setting the door end cap as a metal material in the related art to improve the aesthetics of the door body, that is, the door end cap is directly connected to the door seal, and the door seal is directly in contact with the storage compartment, namely the freezer or the refrigerator compartment. Since the metal material has good heat conduction effect, the door end cap can directly transfer the cold quantity at the door seal to the door end cap, thus reducing the overall temperature of the door end cap and further increasing the risk of condensation on the entire door end cap. It can be seen that in this embodiment, the conduction member is arranged in the foaming cavity and is arranged in contact with the inner surface of the door end cap, and the heat conduction coefficient of the heat conduction member is greater than that of the door end cap. On the one hand, the door end cap can isolate the conduction member and the door seal, thus avoiding the direct contact between the conduction member and the door seal and reducing the cold quantity transferred to the door end cap. On the other hand, the conduction member can timely conduct the cold quantity at the hidden pull handle, so as to prevent condensation at the hidden pull handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate some embodiments of the present application or the implementation manners in the related art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the related art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings.

[0050] Figure 1 Structural schematic diagram of a refrigerator provided by an embodiment of the present application;

[0051] Figure 2 Structural schematic diagram of a door body from one perspective provided by an embodiment of the present application;

[0052] Figure 3 Structural schematic diagram of the door body from another perspective provided by an embodiment of the present application;

[0053] Figure 4 Partial exploded view of the door body provided by an embodiment of the present application;

[0054] Figure 5 Cross-sectional view at the door end cap provided by an embodiment of the present application;

[0055] Figure 6 Assembly structural schematic diagram of the door end cap and the conduction member provided by an embodiment of the present application;

[0056] Figure 7 Exploded schematic diagram of the metal wrapping layer and the conduction member provided by an embodiment of the present application;

[0057] Figure 8 Assembly structural schematic diagram of the metal wrapping layer and the conduction member provided by this embodiment;

[0058] Figure 9 Provided by an embodiment of the present application Figure 5Partial enlarged schematic view at A in the [original text];

[0059] Figure 10 Explosion diagram of the door end cover, metal wrapping layer and conducting part provided by the embodiment of the present application;

[0060] Figure 11 Explosion diagram of the connection between the conducting part and the inner surface of the door housing provided by the embodiment of the present application;

[0061] Figure 12 Explosion diagram of the door body provided with a heat insulation part in the embodiment of the present application;

[0062] Figure 13 Schematic diagram of the connection structure between the heat insulation part and the door inner liner provided by the embodiment of the present application;

[0063] Figure 14 Cross-sectional view of the door body provided with a heat insulation part in the embodiment of the present application;

[0064] Figure 15 Simplified diagram of the box body provided by the embodiment of the present application;

[0065] Figure 16 Schematic diagram of the structure of the door inner liner provided by the embodiment of the present application;

[0066] Figure 17 Cross-sectional view of the door inner liner provided by the embodiment of the present application;

[0067] Figure 18 Cross-sectional view of the heat insulation part provided on the door inner liner in the embodiment of the present application.

[0068] Explanation of reference numerals:

[0069] 100 - Refrigerator;

[0070] 110 - Box body; 111 - Box inner liner; 112 - Storage compartment; 113 - Air outlet;

[0071] 120 - Door body; 121 - Door housing; 122 - Door inner liner; 1221 - Air guiding protrusion; 123 - Door end cover; 1231 - Hidden pull handle; 124 - Conducting part; 125 - Metal wrapping layer; 126 - Heat insulation part. Detailed implementation manners

[0072] To make the purpose, implementation manners and advantages of the present application clearer, the following will clearly and completely describe the exemplary implementation manners of the present application with reference to the accompanying drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only a part of the embodiments of the present application, rather than all of the embodiments.

[0073] It should be noted that the brief description of terms in this application is only for the convenience of understanding the following described embodiments, rather than intending to limit the embodiments of this application. Unless otherwise specified, these terms should be understood in their ordinary and common meanings.

[0074] In addition, the terms "comprising" and "having" and any variations thereof are intended to cover but not exclusively include. For example, a product or device comprising a series of components does not necessarily have to be limited to those components clearly listed, but may include other components not clearly listed or inherent to these products or devices.

[0075] In the description of this application, it should be understood that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this application 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 thus cannot be understood as a limitation to this application.

[0076] The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, unless otherwise specified, the meaning of "a plurality" is two or more.

[0077] In the description of this application, it should be noted that unless otherwise clearly specified and defined, the terms "install", "connect", and "couple" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0078] As one of the core household appliances in modern families, the balance between the appearance design and functional performance of refrigerators has always been an important topic in manufacturing technology. In recent years, hidden pull handles (also known as embedded handles) have gradually become the mainstream design of high-end refrigerators due to their simple and beautiful appearance and space-saving features. However, the hidden pull handles occupy the internal space of the door body, resulting in a reduction in the thickness of the foaming layer corresponding to the hidden pull handles, thereby decreasing the heat insulation effect of the foaming layer corresponding to the hidden pull handles. Subsequently, more cold energy is transmitted to the hidden pull handles, making it easy for the temperature at the hidden pull handles to drop below the dew point temperature, thus easily causing condensation at the hidden pull handles, which not only affects the reliability of the product but also the user experience.

[0079] The R & D personnel of this application conducted a detailed study on the door body of the refrigerator, and reorganized the necessity of setting each component of the door body. For the door body, the setting of the recessed pull handle is essential to achieve the planarization of the door body appearance. How can condensation prevention be achieved at the recessed pull handle?

[0080] In the prior art, it is achieved by increasing the thickness of the foam cavity of the door body. However, such a setting will increase the thickness of the door body, thereby limiting the application scenarios of the door body, and seriously affecting the effective volume of the refrigerator after the door body is thickened.

[0081] Therefore, the R & D personnel of this application considered transferring the cold quantity at the recessed pull handle to other positions of the end cover to increase the temperature at the recessed pull handle. That is, a heat conduction member is provided on the side of the door end cover facing the foam cavity, and the thermal conductivity of the heat conduction member is greater than that of the door end cover. In this way, the heat conduction member can transfer the temperature at the recessed pull handle along the end face direction of the door end cover to other directions of the end cover, so as to increase the temperature at the recessed pull handle above the dew point temperature, thereby avoiding the problem of condensation at the recessed pull handle, and at the same time being able to avoid increasing the thickness of the door body, which is beneficial to the design of the thin and light door body.

[0082] Next, some embodiments of the present application will be described clearly and completely with reference to the accompanying drawings in some embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0083] The refrigerator 100 provided by the implementation mode of this application can have various implementation forms. For example, a double - door refrigerator 100, a single - door refrigerator 100, etc. Figure 1 This is a specific implementation manner of a refrigerator 100 provided by an embodiment of this application.

[0084] In a possible embodiment, the refrigerator 100 includes a box body 110. A storage compartment is formed inside the box body 110, and an opening communicating with the storage compartment is formed on the box body 110.

[0085] Among them, the storage compartment includes an independent refrigerating compartment and a freezing compartment. The temperature in the refrigerating compartment is higher than that in the freezing compartment. Exemplarily, the freezing compartment is arranged below the refrigerating compartment. The refrigerating compartment is provided with at least one refrigerating partition, which divides the refrigerating compartment into multiple refrigerating storage spaces. A refrigerating drawer is arranged in at least one refrigerating storage space to facilitate the user to take and place refrigerated items. Similarly, at least one freezing partition is arranged in the freezing compartment to divide the freezing compartment into multiple freezing storage spaces. A freezing drawer is arranged in at least one freezing storage space, and the freezing drawer is used to store frozen items to facilitate the user to take and place.

[0086] Moreover, the openings provided in communication with the storage compartment include a freezing opening and a refrigerating opening. The freezing opening communicates with the freezer compartment, the refrigerating opening communicates with the refrigerator compartment, and the freezing opening and the refrigerating opening are not in communication, so as to prevent the temperature in the freezer compartment from affecting the temperature in the refrigerator compartment, thereby ensuring the freezing effect in the freezer compartment and the refrigerating effect in the refrigerator compartment.

[0087] In addition, the shape and size of the cabinet 110 are not limited. Refer to Figure 1 , and the cabinet 110 is a rectangular cabinet 110.

[0088] In addition, the refrigeration modes implemented by the refrigerator 100 include but are not limited to direct cooling, forced air cooling, and mixed cooling (direct cooling and forced air cooling), etc. In this embodiment, forced air cooling is mainly taken as an example for illustration. Optionally, a refrigeration system and an air duct system are provided in the refrigerator 100. The refrigeration system is used to generate cold air, and the air duct system can deliver the cold air generated by the refrigeration system to the refrigerator compartment and the freezer compartment of the refrigerator 100, so as to achieve the purpose of refrigerating the refrigerator compartment and freezing the freezer compartment.

[0089] The refrigeration system generally refers to a closed system composed of components such as a compressor, an evaporator, a condenser, a dryer filter, a return air pipe, and a throttling device, as well as a refrigerant. Each component is distributed at different positions of the refrigerator 100 according to its structural characteristics to meet the requirements of its corresponding functions.

[0090] The working process of the refrigeration system mainly includes a compression process, a condensation process, a throttling process, and an evaporation process.

[0091] The compression process is as follows: After plugging in the power cord of the refrigerator 100, when the contacts of the thermostat are closed, the compressor starts to work. The low-temperature and low-pressure refrigerant from the evaporator is sucked into the compressor, and after being compressed by the compressor, it is discharged as a high-temperature and high-pressure refrigerant gas into the condenser.

[0092] The condensation process is as follows: The high-temperature and high-pressure refrigerant gas exchanges heat with the external environment through the condenser, the temperature drops, and it is gradually cooled to a normal-temperature and high-pressure refrigerant saturated vapor, and then cooled to a refrigerant saturated liquid.

[0093] The throttling process is as follows: The condensed refrigerant saturated liquid flows into the throttling device after being filtered by the dryer filter to remove moisture and impurities, and is throttled and depressurized through the throttling device, and the refrigerant becomes a normal-temperature and low-pressure wet vapor.

[0094] The evaporation process: The normal-temperature and low-pressure wet vapor enters the evaporator, starts to absorb heat and vaporize, reduces the temperature of the evaporator and its surroundings, realizes refrigeration, and makes the refrigerant become a low-temperature and low-pressure gas.

[0095] The refrigerant coming out of the evaporator returns to the compressor, repeating the above process. Through the state change of the refrigerant, energy conversion is carried out, and the heat inside the refrigerator 100 is transferred to the air outside the box, thereby realizing the refrigeration cycle of the refrigerator 100.

[0096] The air duct system is installed inside the refrigerator 100 and is used to provide power for the flow of cold air. The air duct system generally includes a fan and an air duct.

[0097] Figure 2 It is a schematic structural diagram of a perspective of the door body 120 provided by an embodiment of the present application. Figure 3 It is a schematic structural diagram of another perspective of the door body 120 provided by an embodiment of the present application. In some possible embodiments, refer to Figure 2 and Figure 3 , the refrigerator 100 further includes a door body 120, and the door body 120 is rotatably connected to the box body 110 to open or close the opening.

[0098] Among them, the door body 120 includes a refrigerating door body and a freezing door body. The refrigerating door body is used to open or close the refrigerating opening, and the freezing door body is used to open or close the freezing opening.

[0099] When the user needs to take or place refrigerated items, it is necessary to first rotate the refrigerating door body in a direction away from the refrigerating opening to open the refrigerating opening. When the taking and placing of refrigerated items are completed, rotate it in a direction close to the refrigerating opening to close the refrigerating opening.

[0100] The opening or closing of the freezing opening is the same as that of the refrigerating opening, and will not be repeated here.

[0101] Figure 4 It is a partial exploded view of the door body 120 provided by an embodiment of the present application. Figure 5 It is a sectional view of the door end cover 123 provided by an embodiment of the present application. In some possible embodiments, refer to Figures 2 to 5 , the door body 120 includes a door outer shell 121, a door inner liner 122 and a door end cover 123. The door inner liner 122 is arranged on the side of the door outer shell 121 facing the storage compartment 112 and is connected to the door outer shell 121. The door end cover 123 is respectively connected to the door outer shell 121 and the door inner liner 122. The door end cover 123, the door outer shell 121 and the door inner liner 122 enclose a foaming cavity, and the foaming cavity is filled with a foaming layer. The door end cover 123 is recessed into the foaming cavity to form a hidden pull handle 1231.

[0102] Among them, along the height direction of the refrigerator 100 (i.e., Figure 2 the direction indicated by the X arrow in ), the door body 120 has a top and a bottom. The door end cover 123 includes a top end cover and a bottom end cover. Optionally, the hidden pull handle 1231 on the refrigerating door body is formed on the bottom end cover, and the hidden pull handle 1231 on the freezing door body is formed on the top end cover for the convenience of user operation.

[0103] Moreover, the material of the door end cap 123 includes, but is not limited to, metal materials, plastic materials, etc. In this embodiment, the material of the door end cap 123 is taken as an example of plastic material for illustration.

[0104] In addition, filling the foaming cavity with a foaming layer is a conventional operation in the art and will not be elaborated in detail here.

[0105] In addition, shelves, hanging baskets, etc. are provided on the inner door liner 122 for placing refrigerated items to improve the accommodation rate of the refrigerator 100.

[0106] Thus, by providing the concealed pull handle 1231, the flatness of the refrigerator 100 can be improved, thereby enhancing the aesthetics of the refrigerator 100. By providing the foaming layer, on the one hand, the heat insulation effect of the refrigerator 100 can be improved, and on the other hand, the leakage of cold air inside the refrigerator 100 can be avoided, improving the refrigeration and freezing effects of the refrigerator 100.

[0107] In addition, since the concealed pull handle 1231 is formed by the inward depression of the door end cap 123 towards the foaming cavity, the thickness of the foaming cavity corresponding to the concealed pull handle 1231 is relatively thin compared to the thickness of the foaming cavity at other positions of the door body 120. Therefore, more cold air inside the refrigerator 100 is transferred to the concealed pull handle 1231, resulting in the temperature at the concealed pull handle 1231 being possibly lower than the dew point temperature, and thus condensation is likely to form at the concealed pull handle 1231.

[0108] Based on this, in order to prevent condensation, in some possible embodiments, refer to Figure 4 and Figure 5 , a heat conduction member 124 is provided inside the door body 120. The heat conduction member 124 is located in the foaming cavity and is disposed in contact with the inner surface of the door end cap 123 to transfer the cold air at the concealed pull handle 1231 to other positions of the door end cap 123 except the concealed pull handle 1231. The thermal conductivity of the heat conduction member 124 is greater than the thermal conductivity of the door end cap 123.

[0109] Among them, the material of the heat conduction member 124 includes, but is not limited to, metals such as copper and aluminum, as well as materials with relatively high thermal conductivity such as graphene and aluminum nitride ceramics of non-metallic materials.

[0110] In addition, since the thermal conductivity of the conduction member 124 is greater than that of the door end cover 123, the local cold quantity of the conduction member 124 will first transfer by itself. That is to say, the cold quantity at the corresponding position of the conduction member 124 of the concealed pull handle first transfers horizontally by itself, and finally transfers vertically to various parts of the door end cover 123. That is, the cold quantity at the position of the conduction member 124 corresponding to the concealed pull handle 1231 transfers horizontally to the positions of the conduction member 124 corresponding to other positions of the door end cover 123 except the concealed pull handle 1231, so as to transfer the cold quantity at the concealed pull handle 1231 to other positions of the conduction member 124, so as to achieve the purpose of uniform temperature of the conduction member 124, and finally conduct heat exchange between the conduction member 124 and the door end cover 123.

[0111] In other words, since the thermal conductivity of the conduction member 124 is greater than that of the door end cover 123, the conduction member 124 first conducts heat exchange by itself, that is, the low-temperature area and the high-temperature area of the conduction member 124 first conduct heat exchange to reduce the local temperature difference of the conduction member 124 itself, so as to make the temperature of the conduction member 124 uniform, and then conduct heat exchange between the conduction member 124 and the door end cover 123 according to the temperature difference between the conduction member 124 and the door end cover 123.

[0112] Since the conduction member 124 is arranged in contact with the inner surface of the door end cover 123, and the thermal conductivity of the conduction member 124 is greater than that of the door end cover 123, when the cold quantity transferred to the concealed pull handle 1231 is relatively large and transferred to the conduction member 124, the conduction member 124 first conducts local heat exchange by itself, that is, transfers the cold quantity at the position of the conduction member 124 corresponding to the concealed pull handle 1231 to the positions of the conduction member 124 corresponding to other positions of the door end cover 123 except the concealed pull handle 1231, so as to achieve the uniform temperature of the conduction member 124, and then, according to the temperature difference between the conduction member 124 and the door end cover 123, heat exchange occurs between the conduction member 124 and the door end cover 123. Since the cold quantity at the position of the conduction member 124 corresponding to the concealed pull handle 1231 itself has been transferred to other positions of the conduction member 124, the cold quantity transferred to the concealed pull handle 1231 can be reduced, thus avoiding the temperature of the concealed pull handle 1231 being lower than the dew point temperature due to the relatively large cold quantity transferred at the concealed pull handle 1231, and further achieving the purpose of preventing condensation at the concealed pull handle 1231.

[0113] Moreover, compared with avoiding condensation at the concealed pull handle 1231 by increasing the thickness of the door body 120, the embodiment of the present application can reduce the thickness of the door body 120, make the door body 120 meet the design of being thin and light, and at the same time, can improve the volume utilization rate of the refrigerator 100.

[0114] Compared with the related art where the door end cap 123 is directly made of a metal material to improve the aesthetics of the door body 120, that is, the door end cap 123 is directly connected to the door seal, and the door seal is directly in contact with the storage compartment 112, i.e., the freezer or the refrigerator compartment. Since the thermal conductivity of the metal material is relatively good, the door end cap 123 can directly transfer the cold quantity at the door seal to the door end cap 123, thereby reducing the overall temperature of the door end cap 123 and increasing the risk of condensation on the entire door end cap 123. It can be seen that in this embodiment, the conduction member 124 is disposed in the foaming cavity and is attached to the inner surface of the door end cap 123, and the thermal conductivity coefficient of the heat conducting member is greater than that of the door end cap 123. On the one hand, the door end cap 123 can isolate the conduction member 124 and the door seal, thus avoiding the direct contact between the conduction member 124 and the door seal and reducing the cold quantity transferred to the door end cap 123. On the other hand, the conduction member 124 can timely conduct the cold quantity at the concealed pull handle 1231, so as to prevent condensation at the concealed pull handle 1231.

[0115] In some possible embodiments, referring to Figure 4 and Figure 5 , a conduction member 124 is disposed in the door body 120. The conduction member 124 is located in the foaming cavity and is attached to the inner surface of the door end cap 123. The conduction member 124 has a low-temperature region and a high-temperature region. The low-temperature region is the region corresponding to the concealed pull handle 1231, and the high-temperature region is the other region of the door end cap 123 except the concealed pull handle 1231. The conduction member 124 can perform heat exchange between the low-temperature region and the high-temperature region before heat exchange with the door end cap 123.

[0116] Since the concealed pull handle 1231 is formed by the inward depression of the door end cap 123 towards the foaming cavity, the thickness of the foaming cavity corresponding to the concealed pull handle 1231 is relatively thin compared to the thickness of the foaming cavity at other positions of the door body 120. Therefore, more cold quantity in the refrigerator 100 is transferred to the concealed pull handle 1231, that is, more cold quantity in the refrigerator 100 is transferred to the conduction member 124 corresponding to the concealed pull handle 1231. So a low-temperature region is formed at the conduction member 124 corresponding to the concealed pull handle 1231, and the temperature at the conduction member 124 corresponding to the other region of the end cap except the concealed pull handle 1231 is higher than the temperature at the conduction member 124 corresponding to the concealed pull handle 1231. Therefore, the other region of the door end cap 123 except the concealed pull handle 1231 is the high-temperature region.

[0117] Moreover, since the high-temperature and low-temperature regions on the conduction member 124 will first undergo self-thermal exchange before the conduction member 124 exchanges heat with the door end cap 123, it is possible to reduce the local temperature difference within the conduction member 124 itself, thereby making the temperature of the conduction member 124 uniform. Then, heat exchange between the conduction member 124 and the door end cap 123 is carried out according to the temperature difference between the conduction member 124 and the door end cap 123. In other words, when a large amount of cold is transferred to the concealed pull handle 1231 and then to the conduction member 124, the conduction member 124 first undergoes self-local heat exchange, that is, the cold at the position of the conduction member 124 corresponding to the concealed pull handle 1231 is transferred to other positions of the conduction member 124 corresponding to the door end cap 123 except for the concealed pull handle 1231, so as to achieve uniform temperature of the conduction member 124. Then, according to the temperature difference between the conduction member 124 and the door end cap 123, heat exchange occurs between the conduction member 124 and the door end cap 123. Since the cold at the position of the conduction member 124 corresponding to the concealed pull handle 1231 has been transferred to other positions of the conduction member 124, it is possible to reduce the cold transferred to the concealed pull handle 1231, thereby avoiding the temperature of the concealed pull handle 1231 being lower than the dew point temperature due to a large amount of cold transferred at the concealed pull handle 1231, and thus achieving the purpose of preventing condensation at the concealed pull handle 1231.

[0118] In some possible embodiments, referring to Figure 5 and Figure 6 , the shape of the conduction member 124 matches that of the door end cap 123, and the conduction member 124 fits the entire inner surface of the door end cap 123.

[0119] The above-mentioned matching of the shape of the conduction member 124 and the door end cap 123 means that the shape and size of the conduction member 124 are respectively the same as those of the door end cap 123. For example, if the door end cap 123 is rectangular and has a recess to form the concealed pull handle 1231, then the conduction member 124 is also rectangular, and there is also a recess at the position corresponding to the concealed pull handle 1231 to match the concealed pull handle 1231.

[0120] Since the shape of the conduction member 124 matches that of the door end cap 123 and the conduction member 124 fits the entire inner surface of the door end cap 123, it is possible to enable the door end cap 123 to quickly transfer the heat in the high-temperature region to the low-temperature region, reduce the local temperature difference, and at the same time, ensure that the heat diffuses uniformly along the surface of the door end cap 123, avoiding heat accumulation or loss caused by local shape changes of the door end cap 123.

[0121] In some possible embodiments, the conduction member 124 is a metal conduction member.

[0122] Since the thermal conductivity coefficient of the metal material is relatively high, when the conduction member 124 is a metal conduction member, it is possible to improve the heat conduction ability of the conduction member 124, thereby improving the effect of preventing condensation at the concealed pull handle 1231.

[0123] Exemplarily, the metal conductor includes, but is not limited to, an aluminum conductor, a copper conductor, etc.

[0124] In addition, there are various ways to connect the conductor 124 to the inner surface of the door end cap 123. In some possible embodiments, the conductor 124 is bonded to the door end cap 123.

[0125] Since the conductor 124 is bonded to the inner surface of the door end cap 123, it is possible to avoid designing connection structures on the door end cap 123 and the conductor 124, simplifying the processing technology of the door end cap 123 and the conductor 124.

[0126] Optionally, the conductor 124 is adhesively fixed to the inner surface of the door end cap 123 through double-sided tape. To ensure the thermal conductivity between the conductor 124 and the door end cap 123, the double-sided tape is bonded to a part of the conductor 124 and the door end cap 123.

[0127] In some other possible embodiments, the conductor 124 is snap-fitted to the door end cap 123, improving the convenience of assembling and disassembling the door end cap 123 and the conductor 124.

[0128] Figure 7 An exploded view of the metal wrapping layer 125 and the conductor 124 provided by the embodiment of the present application Figure 8 A schematic structural diagram of the assembly of the metal wrapping layer 125 and the conductor 124 provided by this embodiment Figure 9 Provided by the embodiment of the present application Figure 5 A partial enlarged schematic diagram of part A in Figure 10 An exploded view of the door end cap 123, the metal wrapping layer 125, and the conductor 124 provided by the embodiment of the present application.

[0129] In some possible embodiments, referring to Figures 7 to 10 , the door body 120 further includes a metal wrapping layer 125. The metal wrapping layer 125 covers the surface of the conductor 124 facing away from the door end cap 123, and the edge of the metal wrapping layer is connected to the inner surface of the door end cap 123.

[0130] Among them, the material of the metal wrapping layer 125 includes, but is not limited to, aluminum, copper, etc.

[0131] Since the conductor 124 is bonded to the inner surface of the door end cap 123, however, considering the heat conduction effect between the conductor 124 and the door end cap 123, a partial bonding method is usually used to connect the conductor 124 and the door end cap 123, which easily leads to poor connection stability between the conductor 124 and the door end cap 123. During the transportation of the door end cap 123 with the conductor 124 bonded thereto, it is very easy for the conductor 124 to be separated from the door end cap 123.

[0132] Based on this, in order to improve the connection stability between the door end cap 123 and the conducting member 124, in this embodiment, a metal wrapping layer 125 is provided on the surface of the conducting member 124 facing away from the door end cap 123, and the edge of the metal wrapping layer 125 is connected to the inner surface of the door end cap 123. On the one hand, it can improve the connection stability between the conducting member 124 and the door end cap 123, and on the other hand, it can also improve the heat conduction performance of the door end cap 123.

[0133] Figure 11 The following is an exploded view of the connection between the conducting member 124 provided in the embodiment of the present application and the inner surface of the door housing 121. Refer to Figure 11 , in some possible embodiments, the conducting member 124 extends to the door housing 121, and the conducting member 124 is also arranged in a manner that fits the inner surface of the door housing 121.

[0134] By making the conducting member 124 extend to the door housing 121 and be arranged to fit the inner surface of the door housing 121, the heat conduction performance of the door housing 121 can be further improved.

[0135] Figure 12 The following is an exploded view of the door body 120 provided in the embodiment of the present application with a heat insulation member 126 provided therein. Figure 13 The following is a schematic diagram of the connection structure between the heat insulation member 126 provided in the embodiment of the present application and the door inner liner 122. Figure 14 The following is a sectional view of the door body 120 provided in the embodiment of the present application with a heat insulation member 126 provided therein. Refer to Figure 12 , Figure 13 and Figure 14 , in some possible embodiments, the door body 120 further includes a heat insulation member 126. The heat insulation member 126 is located in the foaming cavity and is fixed to the inner surface of the door inner liner 122. The thermal conductivity of the heat insulation member 126 is less than that of the foaming layer.

[0136] Since the heat insulation member 126 is fixedly arranged on the surface of the door inner liner 122 and the thermal conductivity of the heat insulation member 126 is less than that of the foaming layer, therefore, the cold quantity passing through the door inner liner 122 can be better isolated, thereby further reducing the cold quantity transmitted to the foaming layer, and further reducing the risk of condensation on the door body 120.

[0137] In addition, the heat insulation material in the heat insulation member 126 includes but is not limited to vacuum, polyurethane foam, phenolic foam, etc. The following mainly takes a vacuum insulation panel as an example for illustration.

[0138] In some possible embodiments, the heat insulation member 126 is a vacuum insulation panel.

[0139] Since the thermal conductivity of the vacuum ranges between 0.004 W / m·K and 0.008 W / m·K, which belongs to the insulating material with the lowest thermal conductivity. Therefore, when the heat-insulating member 126 is a vacuum heat-insulating panel, the heat-insulating effect of the heat-insulating member 126 can be improved, further reducing the cold quantity transferred to the door outer shell 121 and enhancing the anti-condensation effect of the door body 120.

[0140] Figure 15 A schematic diagram of the cabinet 110 provided by the embodiment of the present application. Figure 16 A structural schematic diagram of the door inner liner 122 provided by the embodiment of the present application. Figure 17 A sectional view of the door inner liner 122 provided by the embodiment of the present application. Figure 18 A sectional view of the heat-insulating member 126 provided by the embodiment of the present application disposed on the door inner liner 122.

[0141] Refer to Figures 15 to 18 , in some possible embodiments, the cabinet 110 further includes a cabinet inner liner 111. The cabinet inner liner 111 encloses a storage compartment 112. An air outlet 113 is provided at the upper edge of the cabinet inner liner 111. A wind guiding protrusion 1221 is disposed corresponding to the air outlet 113 on the door inner liner 122. The wind guiding protrusion 1221 protrudes from the surface of the door inner liner 122 in a direction away from the foaming cavity. The wind guiding protrusion 1221 has a hollow space, and the hollow space communicates with the foaming cavity to fill the foaming layer.

[0142] Among them, the storage compartment 112 includes a refrigerating compartment and a freezing compartment. Condensation may occur on both the refrigerating door body of the refrigerating compartment and the freezing door body of the freezing compartment. The following mainly analyzes the reason based on the occurrence of condensation on the freezing door body of the freezing compartment.

[0143] Optionally, a freezing drawer is provided in the freezing compartment. The drawer can be pulled out or pushed inward to enter the freezing compartment. When the freezing drawer is pushed into the freezing compartment, there is an air outlet gap between the upper edge of the freezing drawer and the upper edge of the cabinet inner liner 111. The air outlet 113 is located within the air outlet gap. If the freezing door body directly closes the freezing compartment, the cold air blown out from the air outlet 113 will directly hit the freezing door body, thereby increasing the cold quantity transferred to the freezing door body, and then resulting in the occurrence of condensation on the freezing door body. Based on this, the wind guiding protrusion 1221 is disposed on the door inner liner 122 corresponding to the air outlet gap.

[0144] When the freezing door body closes the freezing compartment, the wind guiding protrusion 1221 extends into the air outlet gap, which can reduce the area where the cold air directly hits the door inner liner 122, thereby reducing the cold quantity transferred to the door inner liner 122.

[0145] Since the air guiding protrusion 1221 protrudes from the surface of the door inner liner 111 in a direction away from the foaming cavity, the thickness of the door body 120 corresponding to the air guiding protrusion 1221 is relatively thick. Also, because the air guiding protrusion 1221 has a hollow space that communicates with the foaming cavity to fill the foaming layer, by filling the foaming layer into the hollow space of the air guiding protrusion 1221, the amount of cold transferred to the door outer shell 121 can be further reduced, thereby further reducing the risk of condensation on the door body 120.

[0146] In some possible embodiments, the upper end of the heat insulation member 126 extends to a position close to the lower side of the air guiding protrusion 1221.

[0147] By extending the upper end of the heat insulation member 126 to a position close to the lower side of the air guiding protrusion 1221, it is possible to avoid the occurrence of air bubbles in the air guiding protrusion 1221, ensure the air guiding strength of the air guiding protrusion 1221, and also avoid the deformation of the door inner liner 122, thus ensuring the strength of the door inner liner 122.

[0148] It should be noted that the upper end of the heat insulation member 126 refers to the end facing the top of the refrigerator 100 along the height direction of the refrigerator 100.

[0149] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

[0150] For the sake of convenience of explanation, the above description has been made in combination with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. According to the above teachings, various modifications and variations can be obtained. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, so that those skilled in the art can better use the embodiments and various different variations of the embodiments suitable for specific use considerations.

Claims

1. A refrigerator (100), characterized in that, Comprising: A box body (110) in which a storage compartment (112) is formed, and an opening communicating with the storage compartment (112) is formed on the box body (110); A door body (120) rotatably connected to the box body (110) to open or close the opening, the door body (120) comprising: A door outer shell (121); A door inner liner (122) disposed on the side of the door outer shell (121) facing the storage compartment (112) and connected to the door outer shell (121); A door end cap (123) respectively connected to the door outer shell (121) and the door inner liner (122), the door end cap (123), the door outer shell (121) and the door inner liner (122) enclose a foaming cavity, a foaming layer is filled in the foaming cavity, and the door end cap (123) is recessed into the foaming cavity to form a concealed pull handle (1231); Inside the door body (120) is provided with: A conduction member (124) located in the foaming cavity, the conduction member (124) is disposed in contact with the inner surface of the door end cap (123) to transfer the cold quantity at the concealed pull handle (1231) to other positions of the door end cap (123) except the concealed pull handle (1231), and the thermal conductivity coefficient of the conduction member (124) is greater than that of the door end cap (123).

2. The refrigerator (100) according to claim 1, characterized in that, The conduction member (124) matches the shape of the door end cap (123), and the conduction member (124) is in contact with the entire inner surface of the door end cap (123).

3. The refrigerator (100) according to claim 1, characterized in that, The conduction member (124) is a metal conduction member (124).

4. The refrigerator (100) according to claim 1, characterized in that, The conduction member (124) is bonded to the inner surface of the door end cap (123).

5. The refrigerator (100) according to claim 1, characterized in that, The door body (120) further comprises: A metal wrapping layer (125) covering the surface of the conduction member (124) facing away from the door end cap (123), and the edge of the metal wrapping layer is connected to the inner surface of the door end cap (123).

6. The refrigerator (100) according to claim 1, characterized in that, The conduction member (124) extends to the door outer shell (121), and the conduction member (124) is also disposed in contact with the inner surface of the door outer shell (121).

7. The refrigerator (100) according to claim 1, characterized in that, The door body (120) further comprises: A heat insulation member (126) located in the foaming cavity and fixed to the inner surface of the door inner liner (122), and the thermal conductivity coefficient of the heat insulation member (126) is less than that of the foaming layer.

8. The refrigerator (100) according to claim 7, characterized in that, The heat insulation member (126) is a vacuum heat insulation panel.

9. The refrigerator (100) according to claim 7, characterized in that, The box body (110) comprises: The inner box liner (111) forms the storage compartment (112). An air outlet (113) is provided at the upper edge of the inner box liner (111). A wind guiding protrusion (1221) is provided on the door inner liner (122) corresponding to the air outlet (113). The wind guiding protrusion (1221) protrudes from the surface of the door inner liner (122) in a direction away from the foaming cavity. The wind guiding protrusion has a hollow space which communicates with the foaming cavity to fill the foaming layer.

10. The refrigerator (100) according to claim 9, characterized in that, The upper end of the heat insulation member (126) extends to be close to the lower part of the wind guiding protrusion (1221).

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