Protective foam device for refrigerator glass shelf and glass shelf assembly

Abstract

The utility model provides a protective foam device for a refrigerator glass shelf and a glass shelf assembly. The protective foam device comprises a foam body, the foam body is used for covering at least two adjacent surfaces of a refrigerator glass shelf, and an adhesive structure is arranged on the surface, facing the glass shelf, of the foam body. The foam body has a first structural feature in the middle area corresponding to the thickness direction of the glass shelf, has a second structural feature on at least one end part, and has a stress release feature on the inner side of a decorative strip of an adjacent refrigerator glass shelf; the first structural feature comprises a non-adhesive section or a low-adhesion section or a flexible section; the second structural feature comprises a low-adhesion section or an adhesive-free section; the stress relief feature is at least one of a cut, a groove, or a low density section.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of refrigerator, especially relates to a protective foam device for refrigerator glass shelf and glass shelf assembly. BACKGROUND

[0002] In the use process of contemporary household appliances, as the main household refrigeration equipment, the internal layout design and user experience of the refrigerator have become an important factor in market competition. With the increasingly obvious trend of consumption upgrading, users have higher requirements for the utilization of the internal space of the refrigerator, the design of the structure and the initial experience after unpacking. In the transportation and use links, the glass shelf in the refrigerator plays an important role in supporting and separating the storage space. These glass shelves often need to be fixed and protected in a proper protection way during the process of factory delivery and transportation to avoid damage or displacement under the conditions of vibration, collision and temperature and humidity change. However, the current glass shelf protection means mostly follow the traditional way, for example, using adhesive tape and foam combination for fixing and buffering. Although this kind of traditional scheme plays a protective role to a certain extent, its overall appearance is relatively messy, which not only affects the visual and sensory experience when the refrigerator is unpacked, but also brings higher labor cost and inefficient production process to the manufacturing and assembling links. For consumers who pursue high-end and quality experience, they expect that various components in the refrigerator have more neat, beautiful and convenient characteristics when unpacking and initially using, so as to realize the use feeling matching the positioning of high-end products.

[0003] However, the traditional glass shelf protection method has many shortcomings. First, the common method is to use multiple tapes combined with EPE (polyethylene) foam to fix and buffer the glass shelf in a dispersed manner. This process often requires multiple tedious manual processes, which not only affects production efficiency, but also makes the protection effect uneven due to inconsistent manual operation, making it difficult to form a standardized and automated production process. Second, during transportation, if the tape viscosity is too low, it is easy to cause the tape to open and shift under the conditions of vibration and collision, resulting in damage to the glass shelf during transportation and reducing the quality of the end product. If a high-viscosity tape is used, it will encounter great resistance when the user disassembles and cleans it, increasing the user's difficulty and negative experience. In addition, the traditional combination of tape and foam often presents a messy visual effect, which makes consumers have a bad first impression when they open the box, weakening the efforts made by manufacturers in quality feeling shaping and user experience improvement. More seriously, this original protection method is difficult to flexibly adjust according to different refrigerator glass shelf sizes, thicknesses and internal structure differences, which easily leads to stress concentration and poor adhesion, thereby affecting the overall protection performance and user experience. In summary, the existing technology has not found an effective, simplified and beautiful solution that takes into account production efficiency, protection effect, aesthetics and user disassembly convenience. This provides a technical background and real demand for the present application. Practical new type content

[0004] The purpose of the present application is to provide a protective foam device for refrigerator glass shelves. The device achieves efficient protection, stress relief and easy disassembly of the glass shelf by reasonably setting a no-glue or low-adhesion section in the middle region, a low-adhesion section at the end, and a stress relief feature at the corner of the foam body. At the same time, the present application selects a cross-linked polyethylene foam material with appropriate density, which has sufficient buffering capacity and good usability and aesthetics, providing a comprehensive technical solution to improve production efficiency, enhance user experience, and adapt to various glass shelf sizes and thicknesses.

[0005] To achieve the above-mentioned purpose, the present application provides a protective foam device for refrigerator glass shelves, which comprises: a foam body configured to cover at least two adjacent surfaces of a refrigerator glass shelf and provided with an adhesive structure on the surface facing the glass shelf; the foam body has a first structural feature in the middle region corresponding to the thickness direction of the glass shelf, a second structural feature in at least one end, and a stress relief feature on the inner side of the trim strip of the adjacent refrigerator glass shelf; the first structural feature includes a no-glue section or a low-adhesion section or a flexible section; the second structural feature includes a low-adhesion section or a no-glue section; the stress relief feature is at least one of a cutout, a groove or a low-density section.

[0006] As a further improvement of the present application, the first structural feature is a glue-free section with a width of about 5-15mm.

[0007] As a further improvement of the present application, the second structural feature has a width of about 5mm.

[0008] As a further improvement of the present application, the stress release feature is at least one cut arranged in parallel to the trim strip, and the cut is arranged in multiple and at intervals.

[0009] As a further improvement of the present application, the outer surface of the foam body has a film layer subjected to surface modification treatment, and the film layer is a polyethylene film layer and subjected to corona treatment or plasma treatment.

[0010] As a further improvement of the present application, the low-adhesion section is formed by adjusting the adhesive amount or the foam density.

[0011] As a further improvement of the present application, the foam body is cross-linked polyethylene foam with a density of 30-40kg / m 3 .

[0012] As a further improvement of the present application, the outer surface of the foam body has a film layer subjected to surface modification treatment, and the film layer is a peelable film layer.

[0013] The present application also provides a glass shelf assembly for a refrigerator, which comprises a glass shelf and the protective foam device, the glass shelf comprises a shelf body and a trim strip arranged at the front and rear ends of the shelf body, the protective foam device is fixed to the corner position of the glass shelf where the trim strip is arranged by means of the adhesive structure, the first structural feature is located at the outer side of the edge of the shelf body, and the stress release feature is adjacent to the inner side edge of the trim strip.

[0014] As a further improvement of the present application, the protective foam device comprises:

[0015] The first protective foam is arranged at the two corners of the front side of the glass shelf, and has a first bonding part attached to the upper side and the lower side of the shelf body and the front side trim strip respectively and a first protective part connected between the first bonding parts, and the first protective part is located at the side surface of the glass shelf.

[0016] A second protective foam is arranged at two corners of the rear side of the glass shelf and is arranged in an L shape. The second protective foam has a second adhering part adhering to the bottom surface of the glass shelf, a second protective part bent upward from the rear side of the second adhering part to the rear side of the glass shelf, a third adhering part bent from the second protective part and adhering to the upper side of the shelf body and the trim strip, a third protective part bent upward from the side of the second adhering part to the side surface of the glass shelf, and a fourth adhering part bent from the third protective part and adhering to the upper side of the shelf body and the trim strip.

[0017] The adhesive structure, the second structure feature and the stress release feature are arranged at the first adhering part, the second adhering part, the third adhering part and the fourth adhering part, and the first structure feature is arranged at the first protective part, the second protective part and the third protective part.

[0018] Compared with the prior art, the beneficial effects of the present application are that by arranging a no-glue or low-adhesion section in the middle part, the bonding stress problem caused by the thickness difference of the glass shelf is solved; by reserving a no-glue section at the end part, the user can easily peel off, and the disassembly convenience and user experience are improved; by arranging a stress release feature such as a notch, a groove or a low-density section at the corner, the risk of glue opening during transportation is significantly reduced; the outer surface is treated by a film layer treated by corona treatment or plasma treatment, and the selection of the foam material with a suitable density balances the appearance, bonding performance and buffering performance of the device; in addition, without using multiple adhesive tapes, EPE films and complex pasting processes, the automation production is facilitated, the packaging efficiency and the standardization degree are improved, and finally a more simple, beautiful and high-quality unpacking experience is presented to the consumer. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a top view of the protective foam device of an embodiment of the present application;

[0020] Figure 2 is a top view of the protective foam device of another embodiment of the present application;

[0021] Figure 3 is a top view of the protective foam device of still another embodiment of the present application;

[0022] Figure 4 is a top view of the protective foam device adhered to the bottom of a glass shelf in an embodiment of the present application; Figures 1 to 3

[0023] Figure 5 is a further adhesion schematic view of the protective foam device in the glass shelf assembly shown in Figure 4

[0024] Figure 6 Figure 5 ​​​The plan view of the protective foam device in the shown glass shelf assembly after being attached. DETAILED DESCRIPTION

[0025] The detailed description is described with reference to the accompanying drawings. The illustrative embodiments described in the specification and drawings are intended to be illustrative only and not limiting of the scope of the application. Those of ordinary skill in the art will be able to understand and appreciate the various embodiments of the present application and the various modifications, alterations, and permutations thereof upon the reading of the detailed description in connection with the accompanying drawings. It will be understood that the various aspects of the present application can be arranged, substituted, combined, separated, and designed in many different configurations, all of which are intended to fall within the scope of the present application.

[0026] Please refer to Figures 1 to 6 The protective foam device 1 for the glass shelf of the refrigerator is provided in the present application, which cooperates with the glass shelf 2 during the transportation of the refrigerator, and is used for protecting the glass shelf 2. Thus, the present application also provides a glass shelf assembly 100 for the refrigerator. The glass shelf 2 comprises a shelf body 21 and a decorative strip 22 arranged at the front and rear ends of the shelf body 21. The protective foam device 1 is fixed to the corner position of the glass shelf 2 where the decorative strip 22 is arranged by means of the adhesive structure 3.

[0027] The protective foam device 1 comprises a foam body 11, which is configured to cover at least two adjacent surfaces of the glass shelf 2 of the refrigerator, and is provided with the adhesive structure 3 on the surface facing the glass shelf 2, so as to achieve overall protection of the edge and corner area of the glass shelf 2.

[0028] In order to adapt to glass shelves 2 of different thicknesses and reduce the adhesive stress, the foam body 11 has a first structural feature 111 in the middle region corresponding to the thickness direction of the glass shelf 2, a second structural feature 112 at at least one end, and a stress release feature 113 on the inner side of the decorative strip 22 adjacent to the glass shelf 2. When applied to the glass shelf 2, the first structural feature 111 is located on the outside of the edge of the shelf body 21, and the stress release feature 113 is adjacent to the inner side of the decorative strip 22.

[0029] The first structural feature 111 comprises at least one of a glue-free section, a low-adhesion section, or a flexible section. In actual application, the middle region can be selected to be a glue-free section with a width of about 5-15 mm, so that this region is not affected by the adhesive force during the bonding process, thereby providing adaptive buffering for glass of 3 mm, 4 mm, 5 mm, or even 6 mm in thickness, and avoiding the problem of glue opening caused by size deviation or installation stress.

[0030] To further improve the user's disassembly experience, the second structural feature 112 includes a low-adhesion section or a glue-free section, which may be, for example, a glue-free end of about 5 mm in width, so that the user can easily grab and tear off during disassembly without excessive force to remove the foam, avoiding residual adhesive or damage to the interior of the refrigerator.

[0031] Due to the height difference and local stress concentration problem at the trim 22, the foam body 11 has a stress release feature 113 on the inside of the adjacent refrigerator glass shelf 2 trim 22, which is at least one of a cutout, a groove, or a low-density section; for example, a cutout parallel to the trim 22 is provided at the inside edge of the adjacent trim 22 to accommodate the height difference between the different inner liner ribs and the glass, so that it is not easy to open the glue during transportation. Actual tests show that the foam with such a stress release structure can maintain partial adhesion area for a longer period of time without external pressure, while the foam without such a structure is prone to open completely in a short period of time.

[0032] In addition, to improve the overall aesthetics and surface performance, the outer surface of the foam body 11 has a film layer treated by surface modification, which can be a polyethylene film and has improved surface energy and adhesion performance through corona treatment or plasma treatment, so that the packaging is more neat and beautiful while ensuring protection performance, meeting the quality positioning and user expectations of high-end refrigerator products, and facilitating the implementation of production automation and standardization. Through the comprehensive use of the above structural features, the embodiment effectively improves the problems of traditional tape + foam combination scheme such as complexity, easy opening, disassembly inconvenience, and poor appearance, and achieves better results from production, transportation to user unpacking.

[0033] In the present embodiment, the protective foam device 1 further optimizes the first structural feature 111 in the middle region, so that when the first structural feature 111 is set as a glue-free section, the glue-free section has a width of about 5-15 mm. By designing such a glue-free section in the middle position of the foam body 11, this region is not directly affected by the adhesive during installation, so that it can be adapted to glass shelves 2 of various thickness specifications (such as 3 mm, 4 mm, 5 mm, or 6 mm). The presence of this glue-free section provides a considerable dimensional tolerance and buffer margin for the pasting operation, greatly reducing the stress concentration problem caused by glass thickness deviation or installation position error. In this way, the foam is less likely to produce internal tension and deformation when bonded to the glass shelf 2, reducing the risk of opening during transportation, and avoiding the safety hazards caused by excessive tension of the adhesive tape in the traditional protection scheme.

[0034] In addition, in actual tests, by controlling the width of the glue-free section within the range of about 5-15 mm, the foam can maintain good stability during pasting, and the overall bonding effect will not be affected due to the excessively large glue-free area. The precise setting of the glue-free section makes the foam and the glass shelf 2 more convenient to install and disassemble. During installation, it can be quickly aligned and attached to glass of different thicknesses. During disassembly, due to the absence of a large area of adhesion in the middle area, it will not cause excessive resistance or residual problems when removing the foam. The application of this feature makes the entire packaging process more standardized and easy to automate, which is beneficial to improve production efficiency and product consistency, and also ensures that users have a good user experience and a higher quality visual experience when unpacking and using the product.

[0035] In this embodiment, the width of the low-adhesion or glue-free section in the second structural feature 112 is about 5 mm. By reserving a glue-free or low-adhesion section of about 5 mm wide at the end, the user can easily start removing the foam from this glue-free section when opening the refrigerator packaging and removing the glass shelf 2, without having to search for a tear point on the entire foam or use tools. In actual applications, if the end is not provided with a glue-free section, the user may need more force to tear off the foam, which can easily cause the foam to tear unevenly or leave adhesive residue, seriously affecting the user experience and product aesthetics.

[0036] Compared with the traditional scheme of using multiple adhesive tapes for fixation, in this embodiment, the glue-free end of about 5 mm neither affects the overall firm bonding function of the foam, nor provides a clear grip position for the user. Through actual tests, the glue-free end provides significant grasping convenience for the user after installation. Even in low-temperature or high-humidity conditions, the user can still easily grasp the glue-free area and successfully tear off the foam. This not only improves the visual neatness and smoothness of operation when opening the refrigerator, but also helps to avoid tearing the foam, shedding debris, or damaging the interior surface of the refrigerator due to excessive force, thereby achieving multiple improvements in user experience, appearance quality, and product protection effect.

[0037] In this embodiment, the cutout is provided as a stress release feature 113 at the position of the inner side edge of the adjacent trim strip 22, so that the foam can effectively adapt to the height difference between the glass shelf body and the trim strip 22 of the glass shelf 2 when the glass shelf 2 is wrapped. In the traditional protection scheme, if the foam lacks corresponding stress release measures at this position, it is often prone to local glue failure, displacement or deformation due to transportation vibration and structural differences. The flexible adjustment effect of the longitudinal cutout enables the foam at the inner side edge of the trim strip 22 to adapt to slight height deviations when stressed, avoiding bonding failure caused by stress concentration. Actual tests show that the foam with a cutout can still maintain a certain proportion of adhesive area for a longer period of time under the condition of no external force maintaining the initial bonding, and compared with the design without a cutout, its probability of separation during transportation is significantly reduced. The application of this stress release feature 113 also helps to improve the overall appearance and quality stability of the packaging, so that the protective foam device 1 can provide more reliable structural release and protection for the glass shelf 2 during actual production and use.

[0038] In this embodiment, the film layer on the outer surface of the foam body 11 is a polyethylene film layer and is subjected to corona treatment or plasma treatment. By applying a polyethylene film subjected to surface modification treatment on the outer surface of the foam body 11, the surface energy of the film layer can be greatly improved, thereby significantly improving the bonding performance and appearance quality. In the traditional protection scheme, insufficient surface treatment often leads to minor unevenness and low surface energy on the surface of the foam, making it difficult for adhesives or other materials to adhere uniformly, which in turn leads to local bonding failure or glue failure. In this embodiment, the polyethylene film layer subjected to corona treatment or plasma treatment can effectively increase the molecular bond strength and surface polarity, so that the protective foam device 1 maintains high bonding reliability and stability during packaging, storage and unpacking.

[0039] In addition, the film layer can be uniformly attached to the surface of the foam body 11 after treatment, forming a smooth and tough protective film that not only improves the overall appearance but also enhances the tolerance of the foam under complex transportation conditions. In an automated production line, foam with a film layer subjected to corona or plasma treatment is easier to be grabbed, positioned and pasted by a robotic arm, significantly improving production efficiency and product consistency. Thanks to the improvement of the surface energy of the film layer, the foam is more consistent when used with the inner wall of the refrigerator, the glass shelf 2 or other cushioning materials, thereby providing the end user with a neat, beautiful and stable unpacking experience. In summary, this feature achieves substantial effect optimization through surface modification measures, meeting the protection needs while considering aesthetics and ease of use, further improving the overall performance of the protective foam device 1.

[0040] In this embodiment, the low-adhesion section is formed by adjusting the adhesive content or foam density. By controlling the amount of adhesive applied in a specific area or locally adjusting the foam density during foam production, the adhesive force of this section can be precisely distributed throughout the entire area. When easy removal by the user is required, the adhesive concentration can be reduced or a slightly lower density foam layer can be used at specific positions at the end or middle, thereby achieving a differentiated design of adhesive force. Compared to traditional foam with uniform adhesion throughout, this method of locally adjusting adhesive characteristics allows the device to maintain sufficient stability during transportation, while providing users with a clear tearing starting point and a more relaxed operating experience during disassembly. At the same time, when the parameters of adhesive content and foam density are reasonably balanced, the protective effect and user comfort can be maximized, which is conducive to achieving the consistency and predictability of the finished product. The flexible control of production process parameters in this embodiment makes the overall packaging solution more scientific, further improves the automation and standardization of the production process, and presents end users with a high-quality packaging experience that is aesthetically pleasing, practical, and easy to disassemble.

[0041] In this embodiment, the foam body 11 has a density of approximately 30-40 kg / m³. 3 Cross-linked polyethylene foam. By selecting cross-linked polyethylene foam within this density range, a balance between elasticity and cushioning performance can be achieved in the foam, avoiding insufficient cushioning due to excessively low density, or excessive rigidity, difficulty in adhesion, and stress release difficulties due to excessively high density. The optimal selection of this density range not only ensures sufficient shock absorption and protection when subjected to transportation vibrations and external impacts, but also facilitates precise processing of cuts and adhesive-free sections, enabling the foam to adapt to various glass thicknesses and differences in inner liner structures during use.

[0042] Furthermore, the appropriate density of cross-linked polyethylene foam combined with the film layer and localized adhesion adjustment can effectively improve the reliability and stability of the device in automated production. During the production process, cross-linked foam with a suitable density can achieve good dimensional stability and adhesion performance when cutting, shaping, and applying the film layer, significantly enhancing the operability of the final product in stacking, transportation, and pasting. Users will also experience more balanced protection and feel in actual use: during installation, the foam is both flexible and firm, ensuring the protective effect; during disassembly, the adhesive-free sections and stress release characteristics 113 can function better. In summary, by selecting 30-40kq / m 3 With the use of cross-linked polyethylene foam materials within the specified range, this embodiment significantly improves the overall performance of the entire device in terms of functionality, ease of use, aesthetics, and production controllability.

[0043] In this embodiment, the stress relief feature 113 includes multiple slits spaced apart at the inner edges of adjacent trim strips 22. Compared to a design with only a single slit at the corner, arranging multiple slits at intervals allows for a more detailed stress distribution over a wider range, giving the foam greater adaptability to varying thicknesses of the glass shelf body 21 and the height difference of the trim strips 22. In conventional solutions, the protective material at this location is prone to localized stress concentration due to thickness differences and transportation vibrations, leading to delamination or deformation. This embodiment forms a flexible buffer area through multiple slits, allowing the foam to distribute stress in a gradient along the edge of the trim strip 22, reducing internal stress concentration and improving overall stability.

[0044] Furthermore, the multiple slits facilitate standardized production and automated cutting processes. During production, the number, spacing, and depth of the slits can be flexibly adjusted according to different refrigerator models and glass shelf dimensions, thus meeting diverse customization requirements. During transportation and use, the slit design significantly improves the foam's adaptability to complex stress environments, allowing it to maintain a relatively stable adhesion state for a considerable period without external intervention. This ensures that end users receive neat, aesthetically pleasing, and easily removable foam protection upon unpacking, further enhancing product quality and user experience.

[0045] In this embodiment, the film layer is a peelable film layer. By using a peelable film layer on the outer surface of the foam body 11, after the refrigerator is transported to the end user and installed or delivered, the user can easily remove the film layer from the surface of the foam body 11, avoiding the film layer affecting the visual effect or tactile feel during daily use. Compared with a non-peelable film layer design, the peelable film layer achieves transportation protection, improves the aesthetics and surface smoothness upon initial unpacking, and does not cause adhesive residue or surface contamination during subsequent use. In practical applications, this peelable film layer provides a clean, undamaged, and aesthetically pleasing protective interface during production and packaging, making it easier for the foam to maintain the stability of its overall structure and surface state under the coordination of automated application, precise positioning, and the adhesive-free central section. Users only need slight pulling force to remove this film layer, achieving an unobstructed and simple operating experience, thereby further enhancing the overall performance of this embodiment in terms of user experience, transportation protection, and product aesthetics.

[0046] In this embodiment, the foam body 11 can be stacked flat when not in use. By manufacturing the foam in a form that allows for neat stacking when not installed, producers can efficiently manage the material in the factory, warehousing, and transportation stages, making its space-saving footprint more compact and facilitating batch grabbing and positioning by automated equipment. Compared to traditional protective materials that require individual, scattered stacking, this embodiment reduces unnecessary space waste and improves inventory turnover. Furthermore, flat stacking allows for flexible process arrangement in the production line during sorting, transfer, and pre-attachment stages, significantly improving overall production efficiency and consistency. When the end user receives the refrigerator, the use of foam during installation is also more orderly, reducing the risk of chaos and secondary contamination caused by haphazard material placement. Although this feature does not directly improve protective performance as much as structural features such as adhesive-free sections or stress-relief cutouts, it provides practical and significant auxiliary effects on the feasibility, automation level, and standardization of the overall solution in the production logistics process.

[0047] In this specific embodiment, the protective foam device 1 for the refrigerator glass shelf 2 includes a foam body 11, which is made of cross-linked polyethylene foam with a density of approximately 35 kg / m³. 3 To maintain a good balance between cushioning and rigidity, the foam body 11 is configured to cover at least two adjacent surfaces of the glass shelf 2 to protect the glass shelf 2 and its surrounding structure during refrigerator transport, assembly, and unpacking by the end user.

[0048] To accommodate glass shelves 2 of varying thicknesses and reduce internal stress, the foam body 11 features a 10mm wide adhesive-free section in the central region corresponding to the thickness of the glass shelf 2. This adhesive-free section prevents the foam from being pulled by adhesive during installation, thus making it suitable for glass thicknesses ranging from 3mm to 6mm. This allows for greater assembly tolerances and reduces stress concentration caused by dimensional differences. At least one end of the foam body 11 also features a 5mm wide adhesive-free section. This adhesive-free area provides a convenient starting point for easy peeling after unpacking, preventing disassembly difficulties or adhesive residue caused by excessive adhesive strength.

[0049] To address the height difference and potential stress concentration issues associated with the trim strips 22, the foam body 11 has at least one slit at the position of adjacent trim strips 22. Through this stress relief feature 113, the foam can adapt to the height difference between the glass of the glass shelf 2 and the trim strips 22 when under stress, reducing the probability of local delamination caused by transportation vibration. In addition, multiple slits can be provided at intervals to accommodate more complex structural differences.

[0050] To improve overall aesthetics and bonding stability, a polyethylene film layer is applied to the outer surface of the foam body 11. This film layer undergoes corona treatment or plasma treatment to significantly increase its surface energy, thereby improving adhesion performance and providing favorable conditions for automated batch bonding. If needed, the film layer can be designed to be peelable, allowing for easy removal after the refrigerator arrives at the end user's location, ensuring a clean and tidy interior in the final usage environment. When not in use, multiple protective foam devices 1 can be stacked flat, facilitating efficient warehousing and automated production line operation. Through the combination of these features and precise design, this embodiment meets transportation protection requirements while improving assembly efficiency, unpacking experience, and ease of use, presenting end consumers with a clean, aesthetically pleasing, and easily removable high-quality refrigerator internal protection solution.

[0051] In addition, such as combining Figures 1 to 3 Please refer to Figures 4 to 6 As shown, depending on the specific location of the glass shelf 2, the protective foam device 1 can be configured with different shapes to provide different protection according to the location. The specific bonding process is described in [reference needed]. Figures 4 to 6 As shown.

[0052] Specifically, in this embodiment, the protective foam device 1 includes a first protective foam 13 and a second protective foam 14. The first protective foam 13 is rectangular in shape and is disposed at the two front corners of the glass shelf 2. It has a first bonding portion 131 that is respectively attached to the upper and lower sides of the shelf body 21 and the front trim 22, and a first protective portion 132 connected between the first bonding portions 131. The first protective portion 132 is located on the side of the glass shelf 2.

[0053] The second protective foam 14 is disposed at the two rear corners of the glass shelf 2 and is arranged in an L-shape. The second protective foam 14 has a second bonding part 141 that adheres to the bottom surface of the glass shelf 2, a second protective part 142 that bends upward from the rear side of the second bonding part 141 to the rear side of the glass shelf 2, a third bonding part 143 that bends from the second protective part 142 and adheres to the upper side of the shelf body 21 and the decorative strip 22, a third protective part 144 that bends upward from the side of the second bonding part 142 to the side of the glass shelf 2, and a fourth bonding part 145 that bends from the third protective part 144 and adheres to the upper side of the shelf body 21 and the decorative strip 22.

[0054] The adhesive structure 3, the second structural feature 112 and the stress relief feature 113 are disposed on the first bonding part 131, the second bonding part 141, the third bonding part 143 and the fourth bonding part 145, and the first structural feature 111 is disposed on the first protective part 132, the second protective part 142 and the third protective part 144.

[0055] In summary, by providing a glue-free section in the middle of the foam body 11, a glue-free or low-adhesion section at the end, providing stress-relieving features 113 at the edge of the trim strip 22, and adding a surface-modified film layer to the outer surface, this utility model effectively alleviates stress concentration and delamination problems caused by size differences and vibration during transportation. At the same time, it improves the overall aesthetics of the packaging and the convenience of user disassembly, thereby achieving a high-quality, automated production-ready, and better user experience for the refrigerator glass shelf 2.

[0056] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0057] The detailed descriptions listed above are merely specific descriptions of feasible implementation methods of this utility model, and are not intended to limit the scope of protection of this utility model. All equivalent implementation methods or modifications made without departing from the spirit of this utility model should be included within the scope of protection of this utility model.

Claims

1. A protective foam device for refrigerator glass shelves, characterized in that, include: A foam body, the foam body being configured to cover at least two adjacent surfaces of a refrigerator glass shelf, and having an adhesive structure on the surface facing the glass shelf; The foam body has a first structural feature in the middle region corresponding to the thickness direction of the glass shelf, a second structural feature at at least one end, and a stress-relieving feature on the inner side of the trim strip of the adjacent refrigerator glass shelf. The first structural feature includes a non-adhesive section, a low-adhesion section, or a flexible section; the second structural feature includes a low-adhesion section or a non-adhesive section; the stress relief feature is at least one of a notch, a groove, or a low-density section.

2. The protective foam device according to claim 1, characterized in that, The first structural feature is a glue-free section with a width of approximately 5-15 mm.

3. The protective foam device according to claim 1, characterized in that, The width of the second structural feature is approximately 5 mm.

4. The protective foam device according to claim 1, characterized in that, The stress-relieving feature is at least one cut parallel to the trim strip, and the cuts are provided in multiple and spaced apart.

5. The protective foam device according to claim 1, characterized in that, The outer surface of the foam body has a surface-modified film layer, which is a polyethylene film layer and has been treated with corona discharge or plasma treatment.

6. The protective foam device according to claim 1, characterized in that, The low-adhesion section is formed by adjusting the adhesive content or foam density.

7. The protective foam device according to claim 1, characterized in that, The foam body is cross-linked polyethylene foam with a density of 30-40 kg / m³. 3 .

8. The protective foam device according to claim 1, characterized in that, The outer surface of the foam body has a surface-modified film layer, which is a peelable film layer.

9. A glass shelf assembly for a refrigerator, characterized in that: The device includes a glass shelf and a protective foam device as described in any one of claims 1 to 8. The glass shelf includes a shelf body and decorative strips disposed at the front and rear ends of the shelf body. The protective foam device is fixed to the corner of the glass shelf where the decorative strips are disposed by an adhesive structure. The first structural feature is located on the outer edge of the shelf body, and the stress relief feature is adjacent to the inner edge of the decorative strip.

10. The glass shelf assembly as claimed in claim 9, characterized in that: The protective foam device includes: The first protective foam is disposed at the two front corners of the glass shelf and has a first bonding part that is respectively attached to the upper and lower sides of the shelf body and the front trim strip and a first protective part connected between the first bonding parts. The first protective part is located on the side of the glass shelf. The second protective foam is disposed at the two rear corners of the glass shelf in an L-shape. The second protective foam has a second bonding part that adheres to the bottom surface of the glass shelf, a second protective part that bends upward from the rear side of the second bonding part to the rear side of the glass shelf, a third bonding part that bends from the second protective part and adheres to the upper side of the shelf body and the trim strip, a third protective part that bends upward from the side of the second bonding part to the side of the glass shelf, and a fourth bonding part that bends from the third protective part and adheres to the upper side of the shelf body and the trim strip. The adhesive structure, the second structural feature, and the stress relief feature are disposed on the first bonding portion, the second bonding portion, the third bonding portion, and the fourth bonding portion, and the first structural feature is disposed on the first protective portion, the second protective portion, and the third protective portion.

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