Door body for refrigerator and refrigerator

By setting up a material resistive structure below and on the side of the buckle of the refrigerator door body, the foaming and spilling problem at the buckle is solved, the production efficiency and sealing are improved, the cost is reduced, and the zero spilling effect at the buckle is achieved .

CN222335791UActive Publication Date: 2025-01-10QINDAO HAIER REFRIGERATOR CO LTD +2
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Patent Information

Application Number
CN202420113231.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-01-17
Publication Date
2025-01-10
Estimated Expiration
2034-01-17

AI Technical Summary

Technical Problem

The sheet metal door shell and trim of the refrigerator door body are connected by snaps, which makes the buckle smaller plane and it is difficult to apply the sponge strips, resulting in foaming and spilling problems, reducing production efficiency, increasing costs and unable to effectively solve the spilling problems.

Method used

The material resisting structure is arranged below and on the side of the snap, including the material resisting table and the overflow trough, to prevent the overflow of foamed materials, ensure sealing, and reduce production processes and costs.

Benefits of technology

Effectively prevents the foaming material from overflowing to the snap, improves the door production efficiency, reduces costs, achieves zero overflow at the snap, and enhances sealing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of refrigeration equipment, and discloses a door body for a refrigerator, the door body comprises a door shell, a door lining arranged on the inner side of the door shell and a decoration strip connecting the door shell and the door lining, a cavity capable of being filled with foaming materials is formed among the door shell, the door lining and the decoration strip, the decoration strip comprises an upper decoration strip, the door shell comprises a side shell part, and a clamping groove is formed in the upper portion of the side shell part; the upper decoration strip comprises a body which extends transversely and is arranged at the upper part of the side shell part; the end part is arranged at one end or two ends of the body, vertically extends and is provided with a buckle, and the buckle is connected with the clamping groove, so that the upper decoration strip is connected with the side shell part; and the material blocking structure is arranged at the end part and positioned below the buckle, or positioned below the buckle and the side part, and is configured to block the foaming material from overflowing to the buckle when the foaming material is filled upwards from the lower part of the cavity. The side shell part is connected with the end part of the upper decoration strip through the buckle, and the material blocking structure is arranged below the buckle or below and on the side of the buckle, so that the condition of foaming and overflowing at the buckle can be improved. The utility model further discloses the refrigerator.
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Description

Technical Field

[0001] The present application relates to the technical field of refrigeration equipment, and in particular to a door body for a refrigerator and a refrigerator. Background Art

[0002] At present, with the development of society, refrigerators, as a container that can keep food or other items in a constant low-temperature cold state, have become one of the indispensable household appliances in modern families. Now, many users have high requirements for the appearance design of refrigerators, hoping that refrigerators can have a high-end and atmospheric appearance. In order to meet the needs of consumers, major refrigerator brands are also constantly innovating and upgrading their appearance designs. For example, some brands have launched refrigerators with a metallic texture, and some brands have launched refrigerators with embedded designs. These refrigerators are not only stylish and beautiful in appearance, but also can better integrate into the home decoration style and enhance the overall texture of the home. In addition, some refrigerator brands have also launched refrigerators with functions such as large capacity, ultra-thin design, and multi-door styles to meet consumers' needs for space utilization and ease of use.

[0003] For refrigerators with a metallic texture, the sheet metal door shell and the door trim of the refrigerator door often have the problem of foaming and overflowing. In order to reduce the occurrence of such defective products, during assembly, it is necessary to manually wrap a circle of sponge strips around the corners where the upper trim and the sheet metal door shell are assembled, and then use transparent tape to firmly fix the door shell and the trim.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist:

[0005] The sheet metal door shell and decorative strips are connected by clips. The flat surface of the clips is small, and it is generally difficult to apply sponge strips. Generally, the door clips are cleaned with dry ice after foaming is completed. The production efficiency of the door body is low, the degree of refinement is poor, the cost is high, and the problem of foam overflow at the clips cannot be effectively solved.

[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 body for a refrigerator and a refrigerator to solve the problem of foaming and overflow at the buckle.

[0009] According to a first aspect of an embodiment of the utility model, there is provided a door body for a refrigerator, comprising a door shell, a door lining arranged on the inner side of the door shell, and a decorative strip connecting the door shell and the door lining, a cavity that can be filled with foam material is formed between the door shell, the door lining and the decorative strip, the decorative strip comprises an upper decorative strip, the door shell comprises a side shell portion, a card slot is provided on the upper portion of the side shell portion, the upper decorative strip comprises: a main body, extending laterally and arranged on the upper portion of the side shell portion; an end portion, arranged at one or both ends of the main body and extending vertically, provided with a buckle, the buckle is connected to the card slot to connect the upper decorative strip to the side shell portion; a material blocking structure, arranged at the end portion and located below the buckle, or, located below and to the side of the buckle, and configured to block the foam material from overflowing to the buckle when the foam material is filled upward from the bottom of the cavity.

[0010] Optionally, the material blocking structure includes: a material blocking platform, which is arranged on the side of the buckle, along the lateral extension direction of the body, the buckle and the material blocking platform are arranged in sequence, and are configured to block the foaming material from entering the cavity from the cavity side.

[0011] Optionally, the end includes: a first side wall, which is arranged opposite to the inner wall surface of the side shell portion and the snap is arranged on the first side wall; a second side wall, which is arranged perpendicular to the first side wall and the material blocking platform is arranged on the second side wall; wherein the material blocking platform abuts against the side end surface of the side shell portion.

[0012] Optionally, the height of the material blocking platform is equal to the wall thickness of the side shell portion.

[0013] Optionally, the height of the material blocking platform is in the range of 0.5 mm to 0.7 mm.

[0014] Optionally, a gap smaller than 0.2 mm is formed between the first side wall and the inner wall surface of the side shell portion.

[0015] Optionally, the material blocking structure further includes: an overflow groove, which is provided on the surface of the first side wall facing the side shell portion, and blocks the foaming material from overflowing over the overflow groove to the buckle when the foaming material is filled upward from the bottom of the cavity.

[0016] Optionally, there are multiple overflow grooves, and the multiple overflow grooves are arranged at intervals in the up and down directions.

[0017] Optionally, the widths of the plurality of overflow grooves gradually decrease from bottom to top.

[0018] Optionally, the overflow groove has a depth ranging from 0.8 mm to 1.2 mm.

[0019] According to a second aspect of an embodiment of the utility model, a refrigerator is provided, comprising: a box body, which defines a refrigeration space; and a door body, which is openably and closably arranged on the box body to open or close the refrigeration space.

[0020] The door body for a refrigerator and the refrigerator provided by the embodiments of the present disclosure can achieve the following technical effects:

[0021] The side shell part is connected to the end of the upper decorative strip through a buckle slot, and there is an assembly gap between the side shell part and the end, and the foaming material will flow in the assembly gap. Since the plane of the buckle is small, there is no way to apply sealing structures such as sponge strips, and the foaming material will inevitably overflow to the buckle during the foaming process, resulting in the need to clean the buckle after the foaming is completed. The door body and refrigerator for refrigerators provided by the embodiment of the present disclosure are provided with a material blocking structure below the buckle. When the foaming material is filled from the bottom of the cavity to the top, the material blocking structure can prevent the foaming material from overflowing from the bottom to the buckle, thereby improving the foaming overflow at the buckle; a material blocking structure is also provided on the side of the buckle, which can not only prevent the foaming material from being filled from the side of the cavity, but also prevent the foaming material from flowing out to the side of the buckle, thereby ensuring the sealing of the buckle. In addition, the buckle is free of sealing, which can reduce the production process of the door body, improve the production efficiency of the door body, and save costs.

[0022] 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

[0023] 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:

[0024] Figure 1 is a structural schematic diagram of a door body for a refrigerator provided by an embodiment of the present disclosure;

[0025] Figure 2 is a schematic diagram of assembling a side shell portion and an upper decorative strip provided by an embodiment of the present disclosure;

[0026] Figure 3 yes Figure 2 A partial enlarged schematic diagram of the middle A part;

[0027] Figure 4 yes Figure 2 A partial enlarged schematic diagram of part B in the middle.

[0028] Reference numerals:

[0029] 10: Door body;

[0030] 20: door shell; 21: side shell; 211: card slot;

[0031] 30: Door lining;

[0032] 40: decorative strip; 41: upper decorative strip; 411: main body; 412: end; 4121: buckle; 4122: material blocking structure; 4123: material blocking platform; 4124: first side wall; 4125: second side wall; 4126: overflow groove. DETAILED DESCRIPTION

[0033] 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.

[0034] The terms "first", "second", etc. in the specification and claims of the disclosed embodiments 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 for the disclosed embodiments described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0035] 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.

[0036] 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.

[0037] Unless otherwise stated, the term "plurality" means two or more.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] The refrigerator may include a box body and a door body. An opening is provided on the front side of the box body, and the front side opening of the box body is opened and closed by the door body. The door body is assembled from a plurality of parts. Since there are matching gaps between the parts, that is, there are gaps in the internal matching, and there is no shielding, in order to prevent overflow, sealing tape needs to be pasted inside. However, due to the small operating space and the poor sealing effect, overflow (i.e., the foaming material overflows from the gap) is likely to occur during the foaming process. And due to the characteristics of foaming, the overflowing foaming material adheres to the exterior surface of the door body parts and is difficult to clean, and the door body may be scrapped.

[0042] For refrigerators with a metallic texture, the sheet metal door shell and the door trim of the refrigerator door often have the problem of foaming and overflowing. In order to reduce the occurrence of such defective products, it is necessary to manually wrap a sponge strip around the corner where the upper trim and the sheet metal door shell are assembled, and then use transparent tape to firmly fix the door shell and the trim. However, the sheet metal door shell and the trim are connected by buckles, and the flat surface at the buckle is small, so it is generally difficult to apply the sponge strip. In general, the door buckle is cleaned with dry ice after the foaming is completed. The production efficiency of the door body is low, the degree of refinement is poor, the cost is high, and the problem of foaming and overflow at the buckle cannot be effectively solved.

[0043] Combination Figure 1-4As shown, the embodiment of the present disclosure provides a door body 10 for a refrigerator, including a door shell 20, a door lining 30 arranged on the inner side of the door shell 20, and a decorative strip 40 connecting the door shell 20 and the door lining 30, and a cavity that can be filled with a foaming material is formed between the door shell 20, the door lining 30 and the decorative strip 40. The decorative strip 40 includes an upper decorative strip 41. The door shell 20 includes a side shell portion 21, and a card slot 211 is provided at the upper portion of the side shell portion 21. The upper decorative strip 41 includes a main body 411, an end portion 412 and a material blocking structure 4122. The main body 411 extends laterally and is arranged at the upper portion of the side shell portion 21. The end portion 412 is arranged at one end or both ends of the main body 411 and extends vertically. The end portion 412 is provided with a buckle 4121, and the buckle 4121 is connected to the card slot 211 so that the upper decorative strip 41 is connected to the side shell portion 21. The blocking structure 4122 is disposed at the end 412 and below the buckle 4121, or below and to the side of the buckle 4121. The blocking structure 4122 is configured to block the foaming material from overflowing to the buckle 4121 when the foaming material is filled upward from the bottom of the cavity.

[0044] The side shell 21 is connected to the end 412 of the upper decorative strip 41 by the buckle 4121 and the slot 211. There is an assembly gap between the side shell 21 and the end 412, and the foaming material will flow in the assembly gap. Since the buckle 4121 has a small surface, there is no way to apply a sealing structure such as a sponge strip, and the foaming material will inevitably overflow to the buckle 4121 during the foaming process, resulting in the need to clean the buckle 4121 after the foaming is completed. The door body 10 for refrigerators according to the embodiment of the present disclosure is provided with a material blocking structure 4122 below the buckle 4121. When the foaming material is filled upward from the bottom of the cavity, the material blocking structure 4122 can block the foaming material from overflowing from the bottom to the buckle 4121, thereby improving the foaming overflow at the buckle 4121. The material blocking structure 4122 is also provided on the side of the buckle 4121, which can not only block the foaming material from being filled from the side of the cavity, but also block the foaming material from flowing out to the side of the buckle 4121, thereby ensuring the sealing of the buckle 4121. In addition, the buckle 4121 is free of sealing, which can reduce the production process of the door body 10, improve the production efficiency of the door body 10, and save costs.

[0045] It can be understood that, along the lateral extension direction of the main body 411 , the side shell portion 21 , the end portion 412 and the door lining 30 are arranged in sequence, and the side of the above-mentioned buckle 4121 refers to the side of the buckle 4121 close to the door lining 30 .

[0046] Optionally, combined Figure 4 As shown, the material blocking structure 4122 includes a material blocking platform 4123, which is arranged on the side of the buckle 4121. The buckle 4121 and the material blocking platform 4123 are arranged in sequence along the lateral extension direction of the body 411. The material blocking platform 4123 is configured to block the foaming material from entering the cavity from the cavity side.

[0047] In this way, by providing the material blocking platform 4123, the foaming material can be blocked from entering the cavity from the side of the cavity, that is, it is ensured that the foaming material can only be filled into the cavity from the bottom of the cavity. It can be understood that the side direction of the cavity is consistent with the side direction of the buckle 4121. In addition, the material blocking platform 4123 can also block the foaming material overflowing to the buckle 4121 from overflowing over the material blocking platform 4123 and onto the door lining 30, thereby contaminating the door lining 30.

[0048] Optionally, the end portion 412 includes a first side wall 4124 and a second side wall 4125. The first side wall 4124 is arranged opposite to the inner wall surface of the side shell portion 21, and the buckle 4121 is arranged on the first side wall 4124. The second side wall 4125 is arranged perpendicular to the first side wall 4124, and the material blocking platform 4123 is arranged on the second side wall 4125. The material blocking platform 4123 abuts against the side end surface of the side shell portion 21.

[0049] The material blocking platform 4123 is in contact with the side end surface of the side shell 21, and the movement of the side shell 21 along the lateral extension direction of the body 411 can be limited by the material blocking platform 4123. The first side wall 4124 is arranged opposite to the inner wall surface of the side shell 21, the buckle 4121 is arranged on the first side wall 4124, the slot 211 is arranged on the side shell 21, and the buckle 4121 and the slot 211 are connected to connect the first side wall 4124 to the side shell 21, so that the end 412 is connected to the side shell 21.

[0050] Optionally, the height of the material blocking platform 4123 is equal to the wall thickness of the side shell portion 21 .

[0051] In this way, the assembly between the side shell portion 21 and the end portion 412 is neater and more beautiful, the sealing performance of the side of the buckle 4121 is better, and the foaming material will not overflow from the side of the buckle 4121 to the door lining 30 during foaming.

[0052] Optionally, the height of the blocking platform 4123 is in the range of 0.5 mm to 0.7 mm.

[0053] The height of the material blocking platform 4123 is set to 0.5 mm-0.7 mm, which can not only ensure the material blocking effect of the material blocking platform 4123, but also save costs, meet the design requirements of ultra-thin appearance, and look more beautiful.

[0054] Optionally, the height of the blocking platform 4123 is 0.6 mm.

[0055] The height of the material blocking platform 4123 is 0.6 mm, which is equal to the wall thickness of the side shell 21, that is, the wall thickness of the side shell 21 is also 0.6 mm, and the side end surface of the side shell 21 is 0.6 mm. In this way, the material blocking function of the material blocking platform 4123 can be ensured, and the cost can be saved, and the design requirements of ultra-thin appearance can be met, which looks more beautiful and provides better user experience.

[0056] Optionally, a gap smaller than 0.2 mm is formed between the first side wall 4124 and the inner wall surface of the side shell portion 21 .

[0057] At present, the assembly gap between the door shell 20 and the upper decorative strip 41 in the related technology is about 0.4mm. The first side wall 4124 and the inner wall surface of the side shell part 21 in the embodiment of the present invention are arranged in parallel, and the gap between the two is less than 0.2mm. The smaller the gap, the less amount of foaming material entering the gap can be reduced, thereby reducing the probability of the foaming material overflowing to the buckle 4121 and improving the situation of foaming overflow at the buckle 4121.

[0058] Optionally, a gap formed between the first side wall 4124 and the inner wall surface of the side shell portion 21 is 0.1 mm.

[0059] The gap between the first side wall 4124 and the inner wall surface of the side shell portion 21 is 0.1 mm. This can not only reduce the amount of foaming material entering the gap, but also leave a certain deformation space, thereby facilitating the assembly operation between the door shell 20 and the upper decorative strip 41.

[0060] Optionally, combined Figure 4 As shown, the material blocking structure 4122 further includes an overflow groove 4126, which is provided on the surface of the first side wall 4124 facing the side shell portion 21. When the foaming material is filled upward from the bottom of the cavity, the foaming material is blocked from overflowing over the overflow groove 4126 to the buckle 4121.

[0061] In this way, when the foaming material is filled upward from the bottom of the cavity, the foaming material entering the gap first passes through the overflow groove 4126. The overflow groove 4126 can prevent the foaming material from overflowing over the overflow groove 4126 to the buckle 4121, thereby improving the situation of foaming overflow at the buckle 4121.

[0062] In summary, during the foaming process, firstly, the material blocking platform 4123 located on the side of the buckle 4121 is used to block the foaming material from entering the cavity from the side of the cavity, i.e., to ensure that the foaming material can only be filled into the cavity from the bottom of the cavity upward; secondly, the assembly gap between the first side wall 4124 and the inner wall surface of the side shell portion 21 is reduced, so that the foaming material is intercepted for the first time, thereby reducing the amount of foaming material entering the gap; finally, the foaming material is intercepted for the second time by the overflow groove 4126 located below the buckle 4121, so as to achieve no overflow at the buckle 4121 and solve the problem of overflow at the buckle 4121.

[0063] The above scheme has been tested on multiple models of refrigerators. According to this scheme, zero overflow at the buckle 4121 can be achieved, solving the stubborn problem of overflow at the buckle 4121.

[0064] Optionally, there are multiple overflow grooves 4126, and the multiple overflow grooves 4126 are arranged at intervals in the up and down directions.

[0065] In this way, providing a plurality of overflow grooves 4126 can ensure that the foaming material entering into the gap is sufficiently accommodated, and the difficulty of the foaming material overflowing upward is increased, so that the foaming material can only reach the overflow groove 4126 and cannot continue to overflow upward to the buckle 4121, thereby achieving zero overflow and no sealing at the buckle 4121, saving costs, and increasing the production speed of the door body 10.

[0066] Optionally, the widths of the plurality of overflow grooves 4126 gradually decrease from bottom to top.

[0067] In this way, the lower overflow groove 4126 is set wider, so that the foaming material can stop flowing upward as low as possible, reducing the risk of the foaming material overflowing to the buckle 4121.

[0068] It is understandable that, according to actual product requirements, the widths of the multiple overflow grooves 4126 may be the same or gradually increase from bottom to top.

[0069] Optionally, the depth of the overflow groove 4126 ranges from 0.8 mm to 1.2 mm.

[0070] At present, the depth of the overflow groove 4126 in the related art is about 0.5 mm. The depth of the overflow groove 4126 in the embodiment of the present invention is deeper, which provides a larger accommodating space for the foaming material and increases the difficulty of the foaming material overflowing upward, so that the foaming material can only reach the overflow groove 4126 and cannot continue to overflow upward to the buckle 4121, thereby achieving zero overflow and no sealing at the buckle 4121, saving costs, and increasing the production speed of the door body 10.

[0071] Optionally, the depth of overflow groove 4126 is 1 mm.

[0072] The depth of the overflow groove 4126 is set to 1 mm, which can ensure sufficient accommodating space and increase the difficulty of the foaming material overflowing upward, while ensuring the structural strength of the upper decorative strip 41.

[0073] The embodiment of the present disclosure provides a refrigerator, comprising a box body and a door body 10. The box body defines a refrigeration space, and the door body 10 is openably and closably arranged on the box body to open or close the refrigeration space.

[0074] The refrigerator also includes an evaporator, a compressor, a condenser, a fan and a controller. A refrigerating chamber, a freezing chamber and a cooling channel are defined in the box.

[0075] The evaporator is arranged in the cooling channel, and the condenser can be arranged on the outer rear wall of the box body. The evaporator and the condenser can be driven by a compressor to form a refrigeration cycle, so as to cool the air in the cooling channel through heat exchange. The compressor can be arranged, for example, on the rear lower side of the box body. The fan is arranged at the connection between the cooling channel and the refrigerator and freezer compartments. The air can enter the cooling channel from the refrigerator and freezer compartments through the fan, and the fan can pump the air in the cooling channel into the refrigerator and freezer compartments. The controller can be connected to the fan and the compressor respectively, and is used to start and stop the operation of the fan and the compressor. The controller is arranged on the front side of the top face of the box body for user use and operation, or is arranged on the front surface of the door body 10.

[0076] The refrigerator also includes a throttling device, and the compressor, condenser, throttling device and evaporator constitute a refrigeration system.

[0077] The role of the compressor in the refrigeration system is mainly to absorb the low-temperature and low-pressure refrigerant from the evaporator, which eventually becomes a high-temperature and high-pressure refrigerant after adiabatic compression by the compressor.

[0078] The role of the condenser in the refrigeration system is to guide the high-temperature and high-pressure refrigerant in the compressor into the condenser, condense the refrigerant under the same pressure, and dissipate heat to the surrounding medium, turning it into high-pressure and low-temperature refrigerant liquid.

[0079] The role of throttling devices such as capillary tubes in refrigeration systems is mainly to convert high-pressure and low-temperature refrigerant cold liquid into low-temperature and low-pressure refrigerant after isenthalpic throttling, and then send the refrigerant into the evaporator.

[0080] The main function of the evaporator in the refrigeration system is to boil the low-temperature and low-pressure refrigerant that has passed through the throttling device under the condition of equal pressure in the evaporator. During the boiling process, the refrigerant will absorb the heat of the surrounding medium and eventually become a low-temperature and low-pressure refrigerant.

[0081] In summary, the refrigerant gas in the compression refrigeration system is compressed into a high-temperature and high-pressure superheated refrigerant when passing through the compressor, and enters the condenser. The high-temperature and high-pressure refrigerant is condensed into a high-pressure and low-temperature liquid in the condenser. After that, this liquid enters the filter and passes through the throttling device, etc., and is throttled in the capillary tube to become a low-temperature and low-pressure refrigerant at equal enthalpy. After that, this low-temperature and low-pressure refrigerant boils in the isobaric evaporator and absorbs a large amount of external heat to become a gas, realizing the refrigeration process. Finally, the refrigerant is sucked into the compressor again for the refrigeration cycle.

[0082] 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 body for a refrigerator, comprising a door shell, a door lining arranged on the inner side of the door shell, and a decorative strip connecting the door shell and the door lining, wherein a cavity which can be filled with a foaming material is formed between the door shell, the door lining and the decorative strip, and the decorative strip comprises an upper decorative strip, characterized in that: The door shell includes a side shell portion, a card slot is provided on the upper portion of the side shell portion, and the upper decorative strip includes: A body extending transversely and disposed on an upper portion of the side shell portion; An end portion is disposed at one or both ends of the body and extends vertically, and is provided with a buckle, which is connected to the slot to connect the upper decorative strip to the side shell portion; The material blocking structure is arranged at the end and below the buckle, or below and to the side of the buckle, and is configured to block the foaming material from overflowing to the buckle when the foaming material is filled upward from the bottom of the cavity.

2. The door body according to claim 1, characterized in that: The material resistance structure includes: The material blocking platform is arranged on the side of the buckle, along the lateral extension direction of the body, the buckle and the material blocking platform are arranged in sequence, and are configured to block the foaming material from entering the cavity from the cavity side.

3. The door body according to claim 2, characterized in that: The end includes: A first side wall is arranged opposite to the inner wall surface of the side shell portion and is buckled on the first side wall; The second side wall is arranged perpendicular to the first side wall, and the material blocking platform is arranged on the second side wall; wherein the material blocking platform is in contact with the side end surface of the side shell portion.

4. The door body according to claim 3, characterized in that: The height of the material blocking platform is equal to the wall thickness of the side shell portion.

5. The door body according to claim 4, characterized in that: The height range of the material blocking platform is 0.5mm-0.7mm.

6. The door body according to claim 3, characterized in that: A gap of less than 0.2 mm is formed between the first side wall and the inner wall surface of the side shell portion.

7. The door body according to any one of claims 3 to 6, characterized in that: The barrier structure also includes: The overflow groove is arranged on the surface of the first side wall facing the side shell part, and prevents the foaming material from overflowing over the overflow groove to the buckle when the foaming material is filled upward from the bottom of the cavity.

8. The door body according to claim 7, characterized in that: There are multiple overflow grooves, and the multiple overflow grooves are arranged at intervals along the up and down directions.

9. The door body according to claim 8, characterized in that: From bottom to top, the widths of the plurality of overflow grooves gradually decrease.

10. The door body according to claim 7, characterized in that: The depth of the overflow groove ranges from 0.8mm to 1.2mm.

11. A refrigerator, characterized in that: include: The box body defines the refrigeration space; The door body as claimed in any one of claims 1 to 10 can be opened and closed on the box body to open or close the refrigeration space.