A packaging protection structure

Abstract

The application provides a packaging protection structure, belonging to the technical field of refrigerator packaging. The packaging protection structure is arranged on the outer side of a refrigerator body and comprises a top pad arranged on the top of the refrigerator body, a first avoiding opening and a first hollow structure arranged on the top pad, a bottom pad arranged on the bottom of the refrigerator body, a second avoiding opening and a second hollow structure arranged on the bottom pad, a corner protection assembly arranged between the top pad and the bottom pad and at the corner of the refrigerator body, a reinforcing structure arranged on the corner protection assembly, a side pad arranged between two adjacent corner protection assemblies and on the side of the refrigerator body, and a third hollow structure arranged on the side pad. The top pad, the bottom pad, the corner protection assembly and the side pad are fixed on the refrigerator body.

Description

Technical Field

[0001] This application belongs to the field of refrigerator packaging technology, and more specifically, relates to a packaging protection structure. Background Technology

[0002] In recent years, people have paid more and more attention to the safety of products during transportation. The protective function of packaging structure is the primary consideration in packaging design and has an important impact on the safety of products during transportation.

[0003] Refrigerators are easily damaged by collisions during transportation, so a sturdy packaging structure is needed to ensure their safe transport. Related technologies often use foam materials to create base pads, top pads, and corner protectors, which are installed in different locations on the refrigerator to provide comprehensive protection.

[0004] However, existing solutions are prone to slippage and misalignment of packaging materials such as corner protectors, bottom pads, or top pads under external forces, rendering the protective function of the packaging materials ineffective. Furthermore, existing solutions fail to effectively disperse impact stress under external impact, causing the packaging materials to break and lose their protective effect, thus leading to damage to the refrigerator during transportation. Utility Model Content

[0005] The purpose of this application is to provide a packaging protection structure to solve the problem that refrigerators are easily damaged during transportation in the prior art.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0007] This application provides a packaging protection structure, which is disposed on the outside of the refrigerator body and includes:

[0008] A top pad is provided on the top of the refrigerator body, and the top pad is provided with a first clearance opening and a first hollow structure;

[0009] A base pad is provided at the bottom of the refrigerator body, and the base pad is provided with a second clearance opening and a second hollow structure;

[0010] The corner protector assembly is located between the top and bottom pads and at the corners of the refrigerator body. The corner protector assembly has a reinforcing structure.

[0011] Side pads are positioned between two adjacent corner protector components and on the side of the refrigerator body, and the side pads have a third hollow structure.

[0012] The top pad, bottom pad, corner protectors, and side pads are all fixed to the refrigerator body.

[0013] Building upon this foundation, this application achieves comprehensive protection for the refrigerator body through the coordinated design of a top pad, bottom pad, corner protectors, and side pads. The first clearance opening of the top pad prevents interference with components on the top of the refrigerator body, while the first hollow structure reduces material usage and improves impact resistance. The second clearance opening of the bottom pad prevents interference with components on the bottom of the refrigerator body, and the second hollow structure also reduces material usage and improves impact resistance. The corner protectors protect the edges of the refrigerator body from bumps and knocks; the reinforced structure effectively disperses impact stress, reducing the risk of breakage due to stress concentration; and the third hollow structure of the side pads further reduces weight and optimizes cushioning. The packaging solution is fixed to the outside of the refrigerator, providing comprehensive protection for all parts of the refrigerator, reducing damage caused by drops and bumps during transportation, balancing versatility and cost reduction, and improving product reliability.

[0014] The overall design significantly reduces the risk of damage during transportation, improving the safety and reliability of the product during transport.

[0015] In one possible design, the packaging protection structure also includes a door protector. The refrigerator body includes a refrigerator door and a refrigerator body, with one side of the refrigerator door rotatably connected to the refrigerator body. The door protector is positioned between the refrigerator door and the refrigerator body.

[0016] Based on this, a door guard is placed between the door and the refrigerator body to maintain a reasonable gap between them. During transportation, when the refrigerator is stacked or subjected to heavy loads, it can prevent the door body from squeezing the door seal and causing deformation, prevent irreversible damage to the door seal, reduce problems such as door gaps, condensation, frost, and poor cooling, and improve the protection of the refrigerator during transportation.

[0017] In one possible design, the top pad includes a top plate and side plates. The top plate has side plates on three sides, and the middle side plate has a first clearance opening. The top plate has a first hollow structure.

[0018] Building upon this, the three-sided design of the top pad enhances protection for the top corners. The middle side panel features clearance openings (such as hinge and cable clearance openings) to ensure compatibility of functional components while preventing material waste. The first perforated structure of the top panel reduces weight and optimizes stress distribution, allowing the top pad to better absorb impact energy during drops, protecting the refrigerator top from damage. Furthermore, the front and rear side panels are clearly distinguishable, facilitating quick identification of the installation direction by packing personnel, improving packing efficiency, and balancing protection with cost control.

[0019] In one possible design, the first clearance includes a hinge clearance and a cable clearance.

[0020] Based on this, the first clearance opening in this application includes a hinge clearance opening and a cable clearance opening, which can accurately adapt to functional positions such as door hinge mounting points and door light wiring holes, avoiding interference between packaging and components and ensuring packaging versatility. There is no need to design separate top pads for different functional hole positions, reducing mold opening costs, saving materials, and improving packaging adaptability.

[0021] In one possible design, the second clearance includes a refrigerator leg clearance and a refrigerator support clearance. The refrigerator leg clearance and the refrigerator support clearance are respectively located on opposite sides of the base pad, and a second hollow structure is provided in the area between the refrigerator support clearance and the refrigerator leg clearance.

[0022] Building upon this, the design of the foot clearance openings and support base clearance openings adapts to different support structures on the bottom of the refrigerator (such as casters or fixed feet), ensuring a tight fit between the base pad and the refrigerator body to prevent slippage. The hollow structure in the middle reduces material usage while allowing for thickening of the non-hollow areas and increasing the edge protection height, enhancing the bottom's wear and impact resistance. It provides targeted protection, especially for areas prone to wear during transportation, achieving a balance between refrigerator protection and cost control.

[0023] In one possible design, the clearance opening for the refrigerator feet is circular or elliptical, while the clearance opening for the refrigerator support base is rectangular.

[0024] Based on this, the refrigerator's support feet have circular or oval clearance openings to accommodate circular components such as support feet and casters; the support base has rectangular clearance openings to accommodate rectangular structures such as compressor support plates. This shape matching improves the fit between the base pad and the bottom components, enhances stability, reduces relative slippage during transport, and improves protective performance.

[0025] In one possible design, the corner protector assembly includes a first and a second protective plate arranged vertically, and the reinforcing structure includes a first reinforcing component and / or a second reinforcing component; the first reinforcing component is disposed on the side of the first protective plate away from the second protective plate, and the second reinforcing component is disposed on the side of the second protective plate away from the first protective plate.

[0026] Building upon this, the vertical guard plate design of the corner protector assembly covers the most vulnerable areas at the corners of the enclosure. Reinforcing components (such as raised structures) balance the stress on each segment of the corner protector through a segmented design. The central raised section disperses impact force and reduces stress concentration, thereby lowering the risk of corner protector breakage and significantly improving the protective effect of the corner area in drops or collisions.

[0027] In one possible design, the first reinforcing component includes a first protrusion, and the second reinforcing component includes a second protrusion. When multiple first protrusions are provided, the height of the first protrusion located in the middle of the first guard plate is higher than the height of the first protrusions located at both ends of the first guard plate. When multiple second protrusions are provided, the height of the second protrusion located in the middle of the second guard plate is higher than the height of the second protrusions located at both ends of the second guard plate.

[0028] Building upon this, the differentiated design of the raised sections addresses the vulnerability of the center of the corner protector to impacts. A higher central protrusion enhances cushioning, while lower protrusions at both ends provide auxiliary support. This structure effectively disperses impact force, prevents excessive localized stress, extends the lifespan of the corner protector, and maintains an overall lightweight design.

[0029] In one possible design, the door guard includes a fixed plate, a first connecting plate, and a second connecting plate. Both the first and second connecting plates are vertically mounted on the fixed plate, and the first and second connecting plates are parallel to each other. A support structure is provided between the first and second connecting plates.

[0030] Based on this, the door guard's fixing plate, parallel connecting plate, and supporting structure can stably support the door and the cabinet. The PPT material, together with the supporting structure, can buffer the impact force through elastic rebound, preventing the door from squeezing the door seal, maintaining the gap, preventing irreversible damage to the door seal, and ensuring the performance of the door seal.

[0031] In one possible design, the support structure includes a first support plate and a second support plate, one end of the first support plate is connected to one end of the second support plate, the other end of the first support plate is connected to a first connecting plate, the other end of the second support plate is connected to a second connecting plate, and the included angle between the first support plate and the second support plate is greater than or equal to 90° and less than 180°.

[0032] Based on this, the first and second support plates of the support structure have an included angle of 90°-180°. The angled design of the support plates produces uniform elastic deformation under pressure, which can withstand the stacking pressure and return to its original shape after the pressure is released. When subjected to repeated impacts, this structure can enhance its resilience, effectively buffer the squeezing force between the door and the cabinet, prevent the door seal from deforming due to long-term squeezing, further ensure the door seal's sealing performance, and reduce problems with poor refrigeration.

[0033] In one possible design, the first, second, and third hollow structures each include multiple spaced-apart hollow holes.

[0034] Building upon this, the perforated structure composed of multiple spaced-out perforations can significantly reduce material usage and lower costs while ensuring the structural strength of the packaging. Simultaneously, the perforated design reduces packaging weight, facilitating transportation and handling, without compromising the protective effect on the refrigerator, achieving a balance between lightweight design and protection. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a front view of a packaging protection structure provided in an embodiment of this application;

[0037] Figure 2 A front view of another packaging protection structure provided in this application embodiment;

[0038] Figure 3 A schematic diagram of the back structure of another packaging protection structure provided in this application embodiment;

[0039] Figure 4 This is a schematic diagram of the top pad in a packaging protective structure provided in an embodiment of this application;

[0040] Figure 5 This is a schematic diagram of the bottom pad in a packaging protective structure provided in an embodiment of this application;

[0041] Figure 6 This is a schematic diagram of the corner protector assembly in a packaging protective structure provided in an embodiment of this application;

[0042] Figure 7 This is a schematic diagram of another corner protector component in a packaging protection structure provided in an embodiment of this application;

[0043] Figure 8 This is a schematic diagram of the side pad in a packaging protective structure provided in an embodiment of this application;

[0044] Figure 9 This is a schematic diagram of the door guard in a packaging protection structure provided in an embodiment of this application.

[0045] The following are the labeling elements in the figure:

[0046] 110 - Top pad; 120 - Bottom pad; 130 - Corner protector assembly; 140 - Side pad; 150 - Door protector;

[0047] 200 - Refrigerator body; 210 - Refrigerator door; 220 - Refrigerator cabinet; 230 - Condenser;

[0048] 111-First clearance opening; 112-First hollow structure; 113-Top plate; 114-Side plate;

[0049] 1111 - Hinge clearance; 1112 - Cable clearance;

[0050] 121 - Second clearance opening; 122 - Second hollow structure;

[0051] 1211 - Refrigerator support foot clearance; 1212 - Refrigerator support base clearance;

[0052] 131 - First protective plate; 132 - Second protective plate; 133 - First reinforcing component; 134 - Second reinforcing component;

[0053] 1331 - First protrusion; 1341 - Second protrusion;

[0054] 141 - Third hollow structure;

[0055] 151-Fixing plate; 152-First connecting plate; 153-Second connecting plate; 154-Supporting structure;

[0056] 1541 - First support plate; 1542 - Second support plate. Detailed Implementation

[0057] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0058] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0059] It should be understood that the terminology used in the description of the various examples herein is for the purpose of describing the particular examples only and is not intended to be restrictive. As used in the description of the various examples, the singular forms “a” and “the” are intended to include the plural forms as well, unless the context explicitly indicates otherwise.

[0060] In the embodiments of this application, "at least one" means one or more, and "more than one" means two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of a single item or a plurality of items. For example, at least one of a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, and c can be a single item or multiple items.

[0061] It should also be understood that, in this application, unless otherwise expressly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a sliding connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium.

[0062] It should also be understood that the term “comprising” (also referred to as “includes”, “including”, “comprises” and / or “comprising”) as used in this specification specifies the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0063] It should be understood that the terms "an embodiment," "another embodiment," and "a possible design" used throughout the specification mean that a specific feature, structure, or characteristic related to an embodiment or implementation is included in at least one embodiment of this application. Therefore, phrases such as "in one embodiment of this application," "in another embodiment of this application," and "a possible design" appearing throughout the specification do not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0064] To address the aforementioned technical problems, embodiments of this application provide a packaging protection structure. (See reference...) Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 and Figure 8 , Figure 1 This is a front view of a packaging protection structure provided in an embodiment of this application. Figure 2 This is a front view of another packaging protection structure provided in an embodiment of this application. Figure 4 This is a schematic diagram of the top pad in a packaging protective structure provided in an embodiment of this application. Figure 5 This is a schematic diagram of the bottom pad in a packaging protective structure provided in an embodiment of this application. Figure 6This is a schematic diagram of the corner protector assembly in a packaging protective structure provided in an embodiment of this application. Figure 8 This is a schematic diagram of the side pad in a packaging protective structure provided in an embodiment of this application.

[0065] like Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 and Figure 8 As shown in the embodiment of this application, a packaging protection structure is provided on the outside of the refrigerator body 200. The packaging protection structure includes a top pad 110, a bottom pad 120, a corner protector assembly 130, and a side pad 140. The top pad 110, the bottom pad 120, the corner protector assembly 130, and the side pad 140 are all fixed on the refrigerator body 200.

[0066] The top pad 110 is located on the top of the refrigerator body 200, and the top pad 110 is provided with a first clearance opening 111 and a first hollow structure 112. The bottom pad 120 is located on the bottom of the refrigerator body 200, and the bottom pad 120 is provided with a second clearance opening 121 and a second hollow structure 122.

[0067] The corner protector assembly 130 is disposed between the top pad 110 and the bottom pad 120, and is located at the corner of the refrigerator body 200. The corner protector assembly 130 is provided with a reinforcing structure. The side pad 140 is disposed between two adjacent corner protector assemblies 130, and is located on the side of the refrigerator body 200. The side pad 140 is provided with a third hollow structure 141.

[0068] In this embodiment, the packaging protection structure is integrally assembled on the outside of the refrigerator body 200, serving as the core protection system to ensure the safety of refrigerator transportation. The top pad 110 is fixed to the top of the refrigerator with tape or straps. Its design fully considers the structural characteristics of the refrigerator top. The first clearance opening 111 precisely corresponds to functional components such as the door hinge mounting point and the door light wiring hole, preventing damage caused by hard contact between the packaging and components. Simultaneously, it ensures that the top pad 110 can adapt to the top structures of different refrigerator models, improving its versatility. The first perforated structure 112 is distributed on the top stress surface of the top pad 110. Through a reasonable perforation design, it reduces material usage, lowering costs while utilizing the mechanical structure formed by the perforated area to disperse the impact force on the top, ensuring that the protective effect on the refrigerator top and corners is not weakened.

[0069] The bottom pad 120 is also fixed to the bottom of the refrigerator with tape or an anti-slip design, forming a protective system that complements the top pad 110. The second clearance opening 121 is adapted to the support legs, casters, and other moving parts at the bottom of the refrigerator, as well as the load-bearing structure such as the compressor support plate, ensuring that the bottom pad 120 fits tightly against the bottom of the refrigerator and preventing radial relative sliding during transportation. The second perforated structure 122 is designed for the central area of ​​the bottom of the cabinet. This area is less likely to be directly impacted during transportation and is more prone to wear and tear. By thickening the bottom pad 120 and increasing the edge height in the non-perforated area, protection for easily worn parts is ensured, while the perforation reduces material consumption, achieving a balance between protection and cost.

[0070] The corner protector assembly 130 is vertically installed between the top pad 110 and the bottom pad 120, precisely covering the four corners of the refrigerator. It can be fixed to the refrigerator body 200 by tape or straps. Its reinforced structure effectively disperses the impact stress on the corners during transportation, solving the problem of easy breakage due to stress concentration in the middle of traditional corner protectors, ensuring that this vulnerable part of the corners is always effectively protected. The side pads 140 are connected between adjacent corner protector assemblies 130, covering the four sides of the refrigerator. They can be fixed to the refrigerator body 200 by tape, adhesive, or straps, or by forming a snap connection with the corner protector assembly 130. The third hollow structure 141 is reasonably distributed based on market feedback on transportation losses, reducing material costs without affecting the side protection strength.

[0071] Overall, the top pad 110, bottom pad 120, corner protector assemblies 130, and side pads 140 work together to form a complete protective closed loop, fully wrapping the refrigerator body 200 from the top, bottom, corners, and sides. This not only copes with harsh transportation scenarios such as drops and bumps, but also adapts to different refrigerator models through a universal design. This reduces the damage rate during transportation while achieving cost reduction and efficiency improvement, solving the problems of insufficient protection or excessive cost of traditional packaging solutions.

[0072] refer to Figure 1 and Figure 2 ,like Figure 1 and Figure 2 As shown, in one embodiment of this application, the packaging protection structure further includes a door protector 150. The refrigerator body 200 includes a refrigerator door 210 and a refrigerator body 220, with one side of the refrigerator door 210 rotatably connected to the refrigerator body 220. The door protector 150 is disposed between the refrigerator door 210 and the refrigerator body 220.

[0073] In this embodiment, the addition of a door protector 150 further enhances the protection of vulnerable parts of the refrigerator. The refrigerator body 200 consists of a refrigerator door 210 and a refrigerator body 220. The door is hinged to the body, and the door protector 150 is installed in the gap between them, filling the gap and maintaining a reasonable spacing through its own structure. The door protector can be made of PPT, a material with good elasticity and toughness, capable of withstanding the pressure between the door and the body and rebounding after the pressure is removed, thus preventing plastic deformation due to long-term compression.

[0074] The door protector 150 connects to the refrigerator door and body without the need for additional fasteners; its positioning is achieved through its own shape and fit to the gaps. Specifically, one side of the door protector 150 adheres to the inner wall of the door, while the other side adheres to the door frame, utilizing the friction of the PPT material for stability. This connection method simplifies the installation process and accommodates minor displacements during door opening and closing, without affecting the normal use of the refrigerator.

[0075] In this embodiment, the door protector 150 directly addresses the common problem of door seal damage in the industry. In traditional packaging solutions, when multiple refrigerators are stacked for transport or heavy objects are placed on top, the gap between the door and the cabinet is compressed, causing the door seal to lose its resilience under long-term stress, leading to problems such as gaps, condensation, and increased frost buildup. The door protector 150, however, supports the door and cabinet through its structure, maintaining a normal gap between them. When subjected to repeated impacts, it undergoes elastic deformation, buffering and dissipating the impact force and preventing irreversible damage to the door seal. This design not only improves the appearance integrity of the refrigerator after transport but also ensures the sealing of the refrigeration system, reducing damage to the door seal during transportation.

[0076] refer to Figure 4 ,like Figure 4 As shown, in one embodiment of this application, the top pad 110 includes a top plate 113 and a side plate 114. The top plate 113 has three sides with side plates 114. The middle side plate 114 has a first clearance opening 111. The top plate 113 has a first hollow structure 112.

[0077] The top pad 110, as the core component of the packaging protective structure, adopts a combined design of "top plate 113 + side plate 114". These three components can be integrally injection molded to ensure structural strength and connection stability. The top plate 113 is a flat structure covering the top of the refrigerator, with side plates 114 extending vertically from its three sides, forming a "U"-shaped enclosure. On the side of the top pad 110 where the side plates 114 are not located, a small fixing block can be installed. The length of this fixing block is much smaller than the length of the side plate 114, facilitating the fixing of the top pad 110 to the top of the refrigerator body 200.

[0078] A first clearance opening 111 is provided on the middle side plate 114 (the side plate 114 opposite to the side of the top plate 113 where no side plate 114 is provided). These clearance openings are precisely designed according to the distribution of functional holes such as the hinge mounting position of the refrigerator door, the door light outlet hole, and the defrost vent hole, ensuring that the top pad 110 will not block or squeeze these components after installation. At the same time, the top pad 110 can be adapted to the top structure of different refrigerator models, eliminating the need for separate molds for each model and greatly improving the universality rate. It should be noted that the first clearance opening 111 can also be provided on other side plates 114, depending on the position of the hinge mounting position of the refrigerator door, the door light outlet hole, the defrost vent hole, and other functional components on the refrigerator.

[0079] The first perforated structure 112 on the top plate 113 is distributed in the non-main stress area. The regular hole design reduces the amount of material used, while the connecting ribs between the perforated areas form a stable mechanical support, ensuring that the top pad 110 will not deform when subjected to top pressure, which reduces costs and maintains protective performance.

[0080] In this embodiment, the first clearance opening 111 on the side panel 114 solves the problem of poor versatility of the traditional top pad 110, and the first hollow structure 112 of the top panel 113 achieves lightweighting and cost control. The structural differences between the front and rear side panels 114, such as the front edge being cut with an integral hollow design while the rear edge retains its complete structure (i.e., one side of the top panel 113 does not have a side panel 114, but the opposite side has one), help packing personnel quickly identify the installation direction and reduce assembly errors. Furthermore, the enclosing structure of "top panel 113 + side panel 114" enhances the protection of the refrigerator's top and corners, and in the event of a drop, it disperses the impact through overall force distribution, improving impact resistance and effectively protecting key components on the top of the refrigerator.

[0081] refer to Figure 4 ,like Figure 4 As shown, in one embodiment of this application, the first clearance opening 111 includes a hinge clearance opening 1111 and a cable clearance opening 1112.

[0082] The first clearance opening 111, a key design feature of the top pad 110 for adapting to the refrigerator's functional components, is specifically divided into a hinge clearance opening 1111 and a cable clearance opening 1112. Both are located on the side plate 114 in the middle of the top pad 110 and are manufactured using an integral molding process with the side plate 114, ensuring smooth, burr-free edges to prevent scratching refrigerator components. The hinge clearance opening 1111 is a rectangular or U-shaped notch, its size and position perfectly matching the hinge mounting base of the refrigerator door. When the top pad 110 is installed in place, the hinge mounting base passes precisely through the notch, preventing the top pad 110 from squeezing the hinge and providing additional lateral protection for the hinge.

[0083] The specific positions and numbers of the hinge clearance openings 1111 and cable clearance openings 1112 can be set according to the number of hinges, the position of the hinges, the position of the cables, and the number of cables on the refrigerator. To enhance versatility, the number of hinge clearance openings 1111 and cable clearance openings 1112 can be set to correspond to the refrigerators with the largest number of hinges and cables, so that the top pad 110 can be adapted to various models of refrigerators. Specifically, in this embodiment, two hinge clearance openings 1111 and one cable clearance opening 1112 are provided, with the cable clearance opening 1112 located between the two hinge clearance openings 1111.

[0084] The cable clearance opening 1112 is a circular or elongated notch, corresponding to the wiring locations such as the door light outlet and defrost vent on the refrigerator door. Its diameter is slightly larger than the cable diameter, allowing the cable to pass through smoothly while the curved edge of the notch prevents wear or breakage. For refrigerator models with multiple options, a detachable clearance module can be used: a mounting slot is pre-drilled at the corresponding position on the side panel 114, and clearance modules of different shapes are installed according to the component locations of different refrigerator models. The modules are secured by snap-fit ​​connections between the modules and the mounting slots, further enhancing the versatility of the top pad 110.

[0085] In this embodiment, the design of the hinge clearance opening 1111 and the cable clearance opening 1112 directly addresses the compatibility issues caused by the "one-size-fits-all" approach of the traditional top pad 110. Without clearance openings, the traditional top pad 110 either cannot be installed due to interference with hinges, cables, or other components, or requires separate design for different models, resulting in high mold costs and inventory pressure. In this embodiment, the precise clearance design allows the top pad 110 to cover multiple refrigerator models, reducing the number of molds required. Simultaneously, the precise matching of the clearance openings with the components avoids hard contact between the packaging and refrigerator components, reducing the risk of component damage during transportation. Furthermore, the presence of the clearance openings reduces the contact area between the top pad 110 and the top of the refrigerator, saving materials while maintaining a secure fit. This, combined with the hollow structure of the top pad 110, achieves cost reduction and efficiency improvement.

[0086] refer to Figure 5 ,like Figure 5 As shown, in one embodiment of this application, the second clearance opening 121 includes a refrigerator leg clearance opening 1211 and a refrigerator support clearance opening 1212. The refrigerator leg clearance opening 1211 and the refrigerator support clearance opening 1212 are respectively disposed on opposite sides of the base pad 120. A second hollow structure 122 is provided in the area between the refrigerator support clearance opening 1212 and the refrigerator leg clearance opening 1211.

[0087] The base pad 120, as a key component bearing the weight of the refrigerator and providing bottom protection, incorporates the design of its second clearance opening 121 and second hollow structure 122, fully integrating the stress characteristics and functional requirements of the refrigerator's bottom. The base pad 120 is a rectangular structure, fixed to the refrigerator's bottom via the second clearance opening 121. The refrigerator leg clearance opening 1211 is located on the front or rear side of the refrigerator's bottom, corresponding to the positions of the refrigerator's legs, casters, and other moving parts; the refrigerator support base clearance opening 1212 is located on the other side of the bottom, matching the shape of the support base at the bottom of the refrigerator.

[0088] Both the refrigerator leg clearance opening 1211 and the refrigerator support base clearance opening 1212 are integrally molded with the base pad 120. The refrigerator leg clearance opening 1211 can be a hole that passes through the base pad 120, and its size is slightly larger than the diameter of the leg, ensuring that the leg can pass through the base pad 120 and contact the ground. At the same time, the edge of the base pad 120 will wrap around the base of the leg to prevent the leg from being damaged due to shaking during transportation. The refrigerator support base clearance opening 1212 is a partial recess or a through hole, which precisely fits the shape of the refrigerator support base, allowing the refrigerator support base to be embedded in the refrigerator support base clearance opening 1212. The tight fit between the base pad 120, the refrigerator leg, and the refrigerator support base restricts the refrigerator from sliding on the base pad 120, enhancing overall stability.

[0089] The second hollow structure 122 is distributed in the area between the refrigerator leg clearance opening 1211 and the refrigerator support base clearance opening 1212. This area corresponds to the center of the bottom of the refrigerator. According to market damage case analysis, this area is less likely to be directly impacted, and the main damage is wear. Therefore, the hollow design reduces costs by eliminating unnecessary materials. At the same time, by thickening the bottom pad 120 at the edge of the hollow area and increasing the edge protection height, the thickened part can resist wear, forming an optimized structure of "hollow weight reduction + edge reinforcement".

[0090] In one embodiment of this application, the base pad 120 can be designed as a split unit, where the refrigerator leg clearance area and the refrigerator support base clearance area are connected by a splicing structure, and the splice is fixed with mortise and tenon joints or bolts. This design facilitates the replacement of modules in the corresponding areas according to different refrigerator bottom structures, further improving versatility, but the overall load-bearing capacity is slightly lower than that of a one-piece molded base pad 120 structure.

[0091] In this embodiment, the precise fit between the refrigerator support foot clearance opening 1211 and the refrigerator support base clearance opening 1212 ensures a tight fit between the bottom pad 120 and the bottom of the refrigerator, limiting the radial sliding of the refrigerator. The hollowed-out design in the middle area and the edge reinforcement design reduce costs while providing targeted protection for different types of damage. The synergy between the bottom pad 120, the top pad 110, and the corner protector assembly 130 forms a complete support system from bottom to top, improving the overall stability of the refrigerator during transportation and reducing deformation of the cabinet caused by uneven force on the bottom.

[0092] refer to Figure 5 ,like Figure 5 As shown, in one embodiment of this application, the refrigerator leg clearance opening 1211 is circular or elliptical, and the refrigerator support clearance opening 1212 is rectangular.

[0093] The shapes of the refrigerator support foot clearance openings 1211 and 1212 are designed based on the external features of the refrigerator's bottom components, achieving a precise match between function and protection. The refrigerator support foot clearance opening 1211 is either circular or elliptical because the cross-sections of components such as the support feet and casters are mostly circular. A circular clearance opening can form a uniform 360° fit with the support foot, preventing wobbling caused by excessive local gaps. When the support foot is a caster, the elliptical clearance opening can also accommodate the slight displacement of the wheel during rotation, preventing the wheel from getting stuck on the edge of the clearance opening and ensuring the stability of the refrigerator during transportation.

[0094] The refrigerator support base clearance opening 1212 is designed in a rectangular shape to match the rectangular structure of the refrigerator support base. The length and width of the rectangular clearance opening are slightly larger than the length and width of the refrigerator support base, allowing the refrigerator support base to be fully embedded while also achieving directional positioning through the correspondence between the long and short sides, preventing the base pad 120 from being installed in the wrong direction. If the refrigerator support base has positioning structures such as protrusions or grooves, the clearance opening can be correspondingly equipped with grooves or protrusions. This interlocking design further enhances the connection stability between the base pad 120 and the support plate, preventing relative displacement during transportation.

[0095] In this embodiment, circular or elliptical support foot clearance openings are used, which provide a better fit with circular components and can distribute the pressure transmitted from the support feet to the base pad 120, preventing excessive local stress on the base pad 120 and potential damage. The matching of the rectangular support base clearance opening with the rectangular refrigerator support base utilizes the directional nature of the shape, helping installers quickly identify the installation direction of the base pad 120 and reducing assembly errors. Furthermore, the precise shape design reduces the gap between the clearance opening and the component, avoiding refrigerator shaking caused by excessive gaps in traditional packaging, reducing the risk of frictional damage between the component and the packaging, and eliminating the need for additional fixing structures, simplifying the packaging process and improving both protective effect and production efficiency.

[0096] refer to Figure 6 ,like Figure 6 As shown, in one embodiment of this application, the corner protector assembly 130 includes a first protective plate 131 and a second protective plate 132 arranged vertically, and the reinforcing structure includes a first reinforcing component 133 and / or a second reinforcing component 134; the first reinforcing component 133 is disposed on the side of the first protective plate 131 away from the second protective plate 132, and the second reinforcing component 134 is disposed on the side of the second protective plate 132 away from the first protective plate 131.

[0097] The corner protector assembly 130 is a key component for protecting the corners of the refrigerator. Its first guard plate 131 and second guard plate 132 adopt an L-shaped structure with vertical connection. The two are integrally injection molded to form a 90° angle, which fits perfectly against the right-angle corner of the refrigerator. The length of the first guard plate 131 and the second guard plate 132 can be set to be the same as the height of the side of the refrigerator, or it can be set to be shorter than the height of the side of the refrigerator.

[0098] If the lengths of the first guard plate 131 and the second guard plate 132 are the same as the height of the side of the refrigerator, the top of the first guard plate 131 and the second guard plate 132 can be fitted into the corner reserved slots of the top pad 110, and the bottom can be inserted into the corresponding groove of the bottom pad 120. The corner protector assembly 130 is vertically positioned by fixing the top pad 110 and the bottom pad 120. At the same time, the inner side of the guard plate is attached to the side of the refrigerator through anti-slip texture to prevent lateral sliding.

[0099] If the lengths of the first guard plate 131 and the second guard plate 132 are shorter than the height of the refrigerator side, the corner protector assembly 130 can be fixed to the refrigerator body 220 using tape or strapping. It should be noted that if the lengths of the first guard plate 131 and the second guard plate 132 are shorter than the height of the refrigerator side, their lengths can be set according to the actual protection needs; that is, corner protector assemblies 130 are not required to protect the corners of the refrigerator body 220 that are not easily bumped.

[0100] The reinforced structure design fully considers the stress characteristics at the corner: the first reinforcing component 133 is distributed on the outer surface of the first guard plate 131 away from the second guard plate 132, and the second reinforcing component 134 is distributed on the outer surface of the second guard plate 132 away from the first guard plate 131. Both can be installed individually or simultaneously. When the first reinforcing component 133 is installed alone, it primarily enhances the impact resistance of the side where the first guard plate 131 is located; when the second reinforcing component 134 is installed alone, it focuses on protecting the side where the second guard plate 132 is located; when both are installed simultaneously, all-around reinforcement of both sides of the corner can be achieved.

[0101] It should be noted that some refrigerator models have a condenser (230) located on the back. (Reference) Figure 3 and Figure 7 , Figure 3 This is a schematic diagram of the back structure of another packaging protection structure provided in an embodiment of this application, wherein... Figure 3 The refrigerator body 200 shown has a condenser 230 on its back. Figure 7 This is a schematic diagram of another corner protector component in a packaging protection structure provided in an embodiment of this application.

[0102] like Figure 3As shown, because the condenser 230 occupies a large space, the first reinforcing component 133 or the second reinforcing component 134 on the corner protector assembly 130 may interfere with the condenser 230. In practical applications, if the back of the refrigerator to be packaged does not have a condenser 230, the first reinforcing component 133 and the second reinforcing component 134 can be installed simultaneously. Figure 7 As shown, if the refrigerator to be packaged has a condenser 230 on its back, then no reinforcing component is provided on the protective plate near the condenser 230. For example, if the first protective plate 131 is near the condenser 230, then no first reinforcing component 133 is provided on the first protective plate 131, and only a second reinforcing component 134 is provided on the second protective plate 132. If the second protective plate 132 is near the condenser 230, then no second reinforcing component 134 is provided on the second protective plate 132, and only the first reinforcing component 133 is provided on the first protective plate 131. Figure 7 In the first guard plate 131, which is close to the condenser 230, the first reinforcing component 133 is not provided on the first guard plate 131, and the second reinforcing component 134 is only provided on the second guard plate 132.

[0103] In this embodiment, the L-shaped protective panel structure completely wraps around the refrigerator corner, preventing the corner from being directly subjected to force during a fall. The outer reinforcing component disperses impact stress by increasing the structural strength and cushioning capacity of the protective panel. When the refrigerator corner is impacted, the reinforcing component deforms before the protective panel, absorbing part of the impact force. The remaining force is then transferred through the protective panel to the top pad 110 and bottom pad 120, where it is borne by the entire packaging system, solving the problem of traditional corner protectors breaking due to insufficient strength in the middle.

[0104] refer to Figure 6 ,like Figure 6 As shown, in one embodiment of this application, the first reinforcing component 133 includes a first protrusion 1331, and the second reinforcing component 134 includes a second protrusion 1341. When multiple first protrusions 1331 are provided, the height of the first protrusion 1331 located in the middle of the first guard plate 131 is higher than the height of the first protrusions 1331 located at both ends of the first guard plate 131. When multiple second protrusions 1341 are provided, the height of the second protrusion 1341 located in the middle of the second guard plate 132 is higher than the height of the second protrusions 1341 located at both ends of the second guard plate 132.

[0105] The first protrusion 1331 and the second protrusion 1341 of the corner protector assembly 130 are core components of the reinforcing structure. Both are integrally formed with the corner protector plate and are distributed on the outer surface of the plate, arranged along its length. The first protrusion 1331 is located on the first corner protector plate 131, and the second protrusion 1341 is located on the second corner protector plate 132. Their height distribution follows the principle of "higher in the middle and lower at both ends." With the midpoint of the corner protector plate as the center, the height of the protrusions gradually decreases towards both ends, forming a symmetrical gradient structure.

[0106] This height design directly addresses the vulnerability of the central corner protector: Market analysis of transport damage cases shows that the central area of ​​the corner is most susceptible to impact during refrigerator transportation. Traditional corner protectors, with their uniform strength across different parts, suffer from stress concentration in the center, leading to breakage. The higher central protrusion increases the buffer space and structural strength in the middle. Upon impact, the central protrusion deforms first, absorbing more impact force through greater deformation, while simultaneously transferring some force to both ends. The lower protrusions at both ends help disperse stress in the edge areas, preventing overall breakage due to excessive stress in the center. The height gradient of the protrusions can be adjusted according to the center of gravity of different refrigerator models. If the refrigerator's center of gravity is high, the upper part of the protrusion is higher than the lower part; conversely, if the center of gravity is low, the upper part is higher, resulting in a better match between the reinforced structure and the stress distribution.

[0107] In this embodiment, the gradient distribution of protrusions achieves dynamic balance of forces on the corner protector assembly 130: the high protrusion in the middle enhances the impact resistance of the core stress area, while the low protrusions at both ends ensure the overall structural stability of the protective plate. The combination of these two features makes the force on each segment of the corner protector more uniform, significantly reducing stress concentration. Simultaneously, the gaps between the protrusions form buffer channels, providing space for the deformation of the protrusions when impact forces act on the protective plate, preventing rigid collisions. Furthermore, the shape design of the protrusions, such as serrated or arc-shaped, further optimizes the force transmission path, allowing the impact force to diffuse along the protrusions towards both ends of the protective plate. If the protective plate contacts the top pad 110 or the bottom pad 120, the impact force will diffuse towards the top pad 110 and the bottom pad 120, ultimately being borne by the entire packaging system, significantly improving the protective performance of the corner protector assembly 130 and reducing the damage rate of the refrigerator corners.

[0108] refer to Figure 9 , Figure 9 This is a schematic diagram of the door protector in a packaging protective structure provided in an embodiment of this application. Figure 9 As shown, in one embodiment of this application, the door guard 150 includes a fixing plate 151, a first connecting plate 152 and a second connecting plate 153. The first connecting plate 152 and the second connecting plate 153 are both vertically arranged on the fixing plate 151, and the first connecting plate 152 and the second connecting plate 153 are arranged in parallel. A support structure 154 is provided between the first connecting plate 152 and the second connecting plate 153.

[0109] The door protector 150, a key component protecting the door seal, is designed specifically for the gap between the refrigerator door 210 and the refrigerator body. It consists of a fixing plate 151, a first connecting plate 152, a second connecting plate 153, and a support structure 154. It can be integrally injection molded from PPT material, combining both elasticity and rigidity. The fixing plate 151 is a thin sheet structure that fits snugly against the door and the refrigerator body. The first connecting plate 152 and the second connecting plate 153 are perpendicularly positioned on the same side of the fixing plate 151, parallel to each other and spaced a certain distance apart. They are respectively attached to the side of the refrigerator door 210 near the refrigerator body 220 and the side of the refrigerator body 220 near the refrigerator door 210, meaning the door protector 150 is placed in the gap between the refrigerator door 210 and the refrigerator body 220. The support structure 154 is located between the two connecting plates, forming a triangular or trapezoidal support system to enhance the overall structure's compressive strength.

[0110] The door protector 150 is connected to the refrigerator door and refrigerator body without the need for additional fasteners. It mainly relies on its own shape and the fit of the gaps: the first connecting plate 152 and the second connecting plate 153 are respectively attached to the side of the refrigerator door 210 near the refrigerator body 220 and the side of the refrigerator body 220 near the refrigerator door 210. They are attached by friction, so that the protector will not fall off during transportation and will not affect the normal opening and closing of the door.

[0111] In this embodiment, the combination of the fixing plate 151, the connecting plate, and the supporting structure 154 forms a rigid frame that can resist the compressive force between the box door and the box body, maintain a reasonable gap between them, and prevent the door seal from deforming due to long-term pressure. The supporting structure 154 disperses pressure through the stability of a triangle or trapezoid. When the box door is subjected to stacking or pressure from heavy objects, the pressure is transmitted to the supporting structure 154 through the connecting plate, causing the supporting structure 154 to undergo a certain deformation, thus preventing excessive local pressure from damaging the door seal. At the same time, the elasticity of the PPT material allows the protective pad to undergo slight deformation when impacted, buffering the impact force through rebound, further protecting the door seal from damage by instantaneous pressure, and solving the problem of poor refrigeration caused by easily damaged door seals in traditional packaging.

[0112] like Figure 9 As shown, in one embodiment of this application, the support structure 154 includes a first support plate 1541 and a second support plate 1542. One end of the first support plate 1541 is connected to one end of the second support plate 1542, the other end of the first support plate 1541 is connected to a first connecting plate 152, and the other end of the second support plate 1542 is connected to a second connecting plate 153. The included angle between the first support plate 1541 and the second support plate 1542 is greater than or equal to 90° and less than 180°.

[0113] The support structure 154 of the door guard 150 is the core component ensuring its pressure resistance. It consists of a first support plate 1541 and a second support plate 1542, with one end connected together and the other end connected to the inner side of the first connecting plate 152 and the second connecting plate 153, respectively. The angle between the first support plate 1541 and the second support plate 1542 is set between 90° and 180°. When the angle is 90°, the support structure 154 has the strongest elasticity; when the angle is closer to 180°, the rigidity of the support structure 154 is better. The first support plate 1541 and the second support plate 1542 can be integrally molded to ensure the strength of the connection and prevent breakage under stress.

[0114] This application, by incorporating a support structure 154, effectively resists the compressive force between the refrigerator door 210 and the refrigerator body 220, thus protecting the refrigerator door 210 from pressure. When the refrigerator door 210 is subjected to pressure, the support structure 154 deforms to absorb the pressure and prevent the door seal from being subjected to rigid impact. When the pressure disappears, the support structure 154 returns to its original shape due to the elasticity of the material, ensuring that the protective effect is maintained even after long-term use. This design specifically solves the problem of irreversible damage to the door seal caused by long-term compression. By dynamically adjusting the pressure distribution, it maintains the gap between the door and the body while providing flexible protection for the door seal, significantly improving the transport quality of the refrigerator.

[0115] In one embodiment of this application, the first hollow structure 112, the second hollow structure 122 and the third hollow structure 141 each include a plurality of hollow holes spaced apart.

[0116] The first perforated structure 112, the second perforated structure 122, and the third perforated structure 141, as key designs for achieving lightweighting and cost control in the packaging protective structure, can each consist of multiple spaced perforations. These perforations are regularly arranged on the top pad 110, bottom pad 120, and side pad 140. The perforations in the top pad 110 are mostly circular or square, distributed in the non-core area of ​​the top stress surface; the perforations in the bottom pad 120 are elongated or square, or similar shapes. The perforations in the side pad 140 can be circular or polygonal, evenly distributed on the non-stressed parts of the side.

[0117] The perforated holes are integrally molded with the surrounding components, and the edges of the holes are rounded to prevent structural fracture caused by stress concentration. The size and spacing of the holes are determined based on the stress analysis of the components: in areas with higher stress, the holes are smaller and more closely spaced, with more connecting ribs to ensure strength; in areas with lower stress, the holes are larger and more widely spaced to minimize material usage.

[0118] The use of multiple spaced-out perforations achieves the goal of "reducing quantity without compromising quality." On one hand, the perforated design significantly reduces the amount of packaging material used, directly lowering production costs and reducing the overall weight of the packaging, facilitating transportation and handling, and reducing logistics costs. On the other hand, the spaced-out perforations, connected by ribs, form a honeycomb-like mechanical structure. This structure disperses impact force through the deformation of the ribs, preventing components from breaking due to localized weaknesses when subjected to external forces, thus ensuring that protective performance is not compromised. Furthermore, the perforations enhance the packaging's breathability, reducing condensation buildup caused by temperature differences during transportation and preventing the refrigerator surface from becoming damp and rusting. Compared to traditional solid packaging, this design improves protective effectiveness while reducing costs and increasing efficiency, aligning with industry trends towards generalization and lightweighting.

[0119] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application.

[0120] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0121] Although preferred embodiments of the present application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the scope of protection of this application includes the preferred embodiments as well as all changes and modifications falling within the scope of the embodiments of this application.

[0122] This document uses specific examples to illustrate the working principle and implementation method of the packaging protection structure of this application. The above description of the embodiments is only for the purpose of helping to understand the specific settings and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation method and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

[0123] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A packaging protection structure, characterized in that, The packaging protective structure is located on the outside of the refrigerator body and includes: A top pad is provided on the top of the refrigerator body, and the top pad is provided with a first clearance opening and a first hollow structure; A bottom pad is provided at the bottom of the refrigerator body, and the bottom pad is provided with a second clearance opening and a second hollow structure; A corner protector assembly is disposed between the top pad and the bottom pad, and at the corner of the refrigerator body, and the corner protector assembly is provided with a reinforcing structure; A side pad is disposed between two adjacent corner protector components and on the side of the refrigerator body, and the side pad is provided with a third hollow structure; The top pad, the bottom pad, the corner protector assembly, and the side pad are all fixed to the refrigerator body.

2. The packaging protection structure as described in claim 1, characterized in that, The packaging protection structure also includes a door protector, and the refrigerator body includes a refrigerator door and a refrigerator body, with one side of the refrigerator door rotatably connected to the refrigerator body; The door guard is installed between the refrigerator door and the refrigerator body.

3. The packaging protection structure as described in claim 1 or 2, characterized in that, The top pad includes a top plate and side plates. The top plate has three sides with side plates. The middle side plate has the first clearance opening. The top plate has the first hollow structure.

4. The packaging protection structure as described in claim 3, characterized in that, The first clearance includes a hinge clearance and a cable clearance.

5. The packaging protection structure as described in claim 1 or 2, characterized in that, The second clearance includes a refrigerator leg clearance and a refrigerator support clearance. The refrigerator leg clearance and the refrigerator support clearance are respectively located on opposite sides of the base pad. The area between the refrigerator support clearance and the refrigerator leg clearance is provided with the second hollow structure.

6. The packaging protection structure as described in claim 5, characterized in that, The clearance opening for the refrigerator feet is circular or elliptical, while the clearance opening for the refrigerator support base is rectangular.

7. The packaging protection structure as described in claim 1 or 2, characterized in that, The corner protector assembly includes a first and a second protective plate arranged vertically, and the reinforcing structure includes a first reinforcing component and / or a second reinforcing component; The first reinforcing component is disposed on the side of the first protective plate away from the second protective plate, and the second reinforcing component is disposed on the side of the second protective plate away from the first protective plate.

8. The packaging protection structure as described in claim 7, characterized in that, The first reinforcing component includes a first protrusion, and the second reinforcing component includes a second protrusion; When multiple first protrusions are provided, the height of the first protrusion located in the middle of the first guard plate is higher than the height of the first protrusions located at both ends of the first guard plate; When multiple second protrusions are provided, the height of the second protrusion located in the middle of the second guard plate is higher than the height of the second protrusions located at both ends of the second guard plate.

9. The packaging protection structure as described in claim 2, characterized in that, The door guard includes a fixed plate, a first connecting plate and a second connecting plate. The first connecting plate and the second connecting plate are both vertically arranged on the fixed plate, and the first connecting plate and the second connecting plate are arranged parallel to each other. A support structure is provided between the first connecting plate and the second connecting plate.

10. The packaging protection structure as described in claim 9, characterized in that, The support structure includes a first support plate and a second support plate. One end of the first support plate is connected to one end of the second support plate, the other end of the first support plate is connected to the first connecting plate, and the other end of the second support plate is connected to the second connecting plate. The included angle between the first support plate and the second support plate is greater than or equal to 90° and less than 180°.

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