Laser drilling refrigerator lining and refrigerator

Abstract

The utility model provides a laser drilling refrigerator lining and a refrigerator, and relates to the technical field of refrigerators. The laser drilling refrigerator lining is used for being installed on a refrigerator door shell and comprises a lining body, a supporting protrusion and an installation structure, the supporting protrusion and the installation structure are both arranged on the lining body, the installation structure is used for being connected with the refrigerator door shell, and a plurality of first exhaust holes are formed in the lining body in a laser drilling mode. According to the laser drilling refrigerator lining, the exhaust holes are formed in the laser drilling refrigerator door lining in a laser drilling mode, the problem of liquid leakage generated in the foaming process of the refrigerator door lining can be effectively reduced or avoided, it is ensured that the foaming quality is affected, sealing adhesive tape does not need to be used, and the refrigerator door lining is easier and more convenient to manufacture.

Description

Technical Field

[0001] This utility model relates to the field of refrigerator technology, and more specifically, to a laser-drilled refrigerator liner and a refrigerator. Background Technology

[0002] Refrigerator door liners are typically manufactured using vacuum forming foaming. During this process, tiny holes are punched into the lining to allow for air release during foaming, ensuring optimal foaming performance. Currently, the industry primarily uses manual punching. However, punched linings can leak during foaming, affecting foaming quality. Furthermore, the use of sealing tape increases manufacturing complexity. Utility Model Content

[0003] To overcome the aforementioned shortcomings of the prior art, the purpose of this utility model is to provide a laser-drilled refrigerator door liner. This laser-drilled refrigerator door liner utilizes laser drilling to create vent holes, effectively reducing or preventing leakage during the foaming process, increasing venting volume, improving foaming quality, and eliminating the need for sealing tape, making the production of the refrigerator door liner simpler and more convenient.

[0004] In a first aspect, this utility model provides a laser-drilled refrigerator liner for installation on a refrigerator door shell. The laser-drilled refrigerator liner includes: a liner body, a supporting protrusion, and a mounting structure. Both the supporting protrusion and the mounting structure are disposed on the liner body. The mounting structure is used to connect with the refrigerator door shell. The liner body has multiple first vent holes formed by laser drilling. The liner body is the main part of the laser-drilled refrigerator liner. The supporting protrusion provides support for the liner body, and the mounting structure is used to install the liner body onto the refrigerator door shell. In this embodiment, the liner body has first vent holes. These first vent holes, formed by laser drilling, can effectively reduce or avoid leakage during the foaming process of the refrigerator door liner, increase the venting volume, and improve the foaming quality.

[0005] Furthermore, in an optional embodiment, the aperture value of the plurality of first vent holes ranges from 0.05mm to 0.2mm. Laser drilling of the first vent holes allows for aperture control within this range. Manual drilling, on the other hand, results in larger apertures, causing the foamed material to easily overflow after air is expelled. Since the reaction rate and expansion of the foamed material cannot be precisely controlled, the overflow is also uncontrollable. Excessive overflow not only affects the product's thermal insulation performance but also requires additional manual cleaning. Even small amounts of overflow can affect the product's appearance. Laser drilling, however, produces smaller apertures for the first vent holes, with aperture values ​​between 0.05mm and 0.2mm. This prevents foamed material from overflowing through the holes, thus helping to ensure the product's thermal insulation performance.

[0006] Furthermore, in an optional embodiment, the aperture values ​​of the plurality of first exhaust holes are all the same.

[0007] Furthermore, in an optional embodiment, the plurality of first exhaust holes are arranged in a uniform array.

[0008] Furthermore, in an optional embodiment, the gap between two adjacent first exhaust holes is less than or equal to 2 mm. Laser drilling of the first exhaust holes can control the gap between two adjacent first exhaust holes to within 2 mm, which helps to ensure the product's thermal insulation performance.

[0009] Furthermore, in an optional embodiment, the thickness of the inner lining body ranges from 0.6 cm to 1.2 cm.

[0010] Furthermore, in an optional embodiment, the inner lining body, the support protrusion, and the mounting structure are manufactured using an integral molding process.

[0011] Furthermore, in an optional embodiment, the support protrusion is provided with a plurality of second vent holes.

[0012] Furthermore, in an optional embodiment, the aperture values ​​of the plurality of first exhaust holes are all the same.

[0013] Furthermore, in an optional embodiment, the plurality of second exhaust holes are arranged in a uniform array.

[0014] Furthermore, in an optional embodiment, the gap between two adjacent second vent holes is less than or equal to 2 mm. Laser drilling of the second vent holes can control the gap between two adjacent second vent holes to within 2 mm, which helps to ensure the product's thermal insulation performance.

[0015] Furthermore, in an optional embodiment, the diameter values ​​of the first vent hole and the second vent hole are equal.

[0016] Furthermore, in an optional embodiment, the support protrusion has a connecting surface that connects the top surface of the support protrusion to the inner lining body, and the second vent is formed on the connecting surface.

[0017] Secondly, this utility model provides a refrigerator, including the laser-drilled refrigerator liner of any of the aforementioned claims.

[0018] This utility model has the following beneficial effects: This utility model embodiment provides a laser-perforated refrigerator liner and a refrigerator. The liner body is the main part of the laser-perforated refrigerator liner, and the supporting protrusions provide support for the liner body. The mounting structure is used to install the liner body onto the refrigerator door shell. In this embodiment, the liner body has a first vent hole. This first vent hole is laser-perforated, which can effectively reduce or avoid leakage during the foaming process of the refrigerator door liner, increase the venting volume, and improve the foaming quality. In known prior art, the holes are mainly punched manually. These holes are relatively large, and refrigerator liners perforated in this way are prone to leakage during the foaming process, affecting the foaming quality. Furthermore, sealing tape is required, increasing the complexity of the manufacturing process. Compared with this prior art solution, the laser-perforated refrigerator liner provided by this utility model embodiment does not allow the foamed material to overflow, requires no additional cleaning process, and does not affect the product appearance. It significantly improves or solves the problem of low venting efficiency in existing solutions. Meanwhile, by using laser-drilled refrigerator lining, the density and number of exhaust vents can be increased, resulting in high exhaust efficiency and multiple independent exhaust channels. Even if other exhaust channels are blocked, exhaust can continue without affecting the process, maximizing exhaust capacity. The high filling rate and low air bubbles of the foam material inside the product ensure its thermal insulation performance. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a laser-drilled refrigerator liner provided in an embodiment of the present invention;

[0021] Figure 2 A schematic diagram of the structure of a laser-drilled refrigerator liner provided in an embodiment of this utility model from another perspective;

[0022] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0023] Figure 4 for Figure 2 A magnified structural diagram at point B in the middle.

[0024] Icons: 100, Laser-drilled refrigerator liner; 110, Liner body; 112, First exhaust vent; 120, Support protrusion; 121, Connecting surface; 122, Second exhaust vent; 130, Installation structure. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0029] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," not that the structure must be completely horizontal, but can be slightly tilted.

[0030] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Please see Figures 1 to 3 This utility model provides a laser-drilled refrigerator liner 100. The laser-drilled refrigerator liner 100 is used for installation on the refrigerator door shell. This utility model provides a laser-drilled refrigerator liner 100 with vent holes, which can effectively reduce or avoid leakage problems during the foaming process of the refrigerator door liner, increase venting volume, improve foaming quality, and eliminate the need for sealing tape, making the production of the refrigerator door liner simpler and more convenient.

[0032] like Figure 1 and Figure 2 As shown in this embodiment of the utility model, the laser-drilled refrigerator liner 100 includes a liner body 110, a support protrusion 120, and a mounting structure 130. Both the support protrusion 120 and the mounting structure 130 are disposed on the liner body 110. The mounting structure 130 is used to connect with the refrigerator door shell, such as... Figure 3 As shown, the inner lining body 110 has multiple first exhaust holes 112 formed by laser drilling.

[0033] It should be noted that in this embodiment of the utility model, the inner lining body 110 is the main part of the laser-drilled refrigerator inner lining 100, the supporting protrusion 120 is used to support the inner lining body 110, and the mounting structure 130 is used to install the inner lining body 110 on the refrigerator door shell. In this embodiment, the inner lining body 110 has a first vent 112. The first vent 112 is laser-drilled, which can effectively reduce or avoid leakage problems in the refrigerator door inner lining during the foaming process, increase the venting volume, and improve the foaming quality.

[0034] It should also be noted that in existing technologies, holes are mainly punched manually, resulting in relatively large holes. Refrigerator liners punched in this way are prone to leakage during the foaming process, affecting foaming quality. Furthermore, sealing tape is required, increasing manufacturing complexity. Compared to this existing technology, the laser-perforated refrigerator liner 100 provided in this embodiment prevents foam material overflow, eliminates the need for additional cleaning processes, and does not affect the product's appearance. It significantly improves or solves the problem of low exhaust efficiency in existing solutions. Simultaneously, the laser-perforated refrigerator liner 100 increases the density and number of exhaust vents, resulting in high exhaust efficiency and multiple independent exhaust channels. Even when other exhaust channels are blocked, continued exhaust is not affected, maximizing exhaust capacity. The high filling rate and low air bubble count of the foam material within the product ensure its thermal insulation performance.

[0035] Alternatively, the laser-drilled refrigerator liner 100 provided in this embodiment can utilize an ultraviolet picosecond laser machine to automatically drill the first exhaust hole 112, thereby saving labor costs and improving work efficiency. Of course, this is not the only option; in other embodiments of this invention, other methods can also be used to achieve automated laser drilling of the first exhaust hole 112, and this embodiment does not impose specific requirements or limitations on these methods.

[0036] In an optional embodiment, the aperture value of the plurality of first vent holes 112 ranges from 0.05mm to 0.2mm. It should be understood that laser drilling of the first vent holes 112 can control the aperture value within the range of 0.05mm to 0.2mm. Manual drilling, on the other hand, results in larger aperture values. Once the air is expelled, the foamed material easily overflows through the vent holes. Since the reaction rate and expansion of the foamed material cannot be precisely controlled, the overflow is also uncontrollable. Excessive overflow not only affects the product's thermal insulation performance but also requires additional manual cleaning. Even small amounts of overflow can affect the product's appearance. Laser drilling, however, results in smaller aperture values ​​for the first vent holes 112, ranging from 0.05mm to 0.2mm. This prevents the foamed material from overflowing through the holes, thus helping to ensure the product's thermal insulation performance.

[0037] It should also be noted that the aperture values ​​of the multiple first exhaust holes 112 range from 0.05mm to 0.2mm. The aperture values ​​of the multiple first exhaust holes 112 can be basically equal or not exactly the same. For example, the aperture value of all the first exhaust holes 112 can be set to 0.1mm, or some of the first exhaust holes 112 can be set to 0.08mm, some of the first exhaust holes 112 can be set to 0.1mm, and some of the first exhaust holes 112 can be set to 0.15mm, etc.

[0038] Optionally, in this embodiment, the aperture values ​​of the plurality of first exhaust holes 112 are all the same. Of course, as mentioned above, this is not the only option; in other embodiments of this utility model, the aperture value of the first exhaust hole 112 may also be set between 0.05 mm and 0.2 mm.

[0039] Optionally, in this embodiment, the plurality of first exhaust holes 112 are arranged in an array and uniformly. Of course, this is not the only possibility; in other embodiments of this invention, the plurality of first exhaust holes 112 may be arranged in other ways, and this invention does not impose specific requirements or limitations on this arrangement. Arranging the plurality of first exhaust holes 112 in an array and uniformly can improve aesthetics and neatness, and also facilitates drilling holes in the inner lining body 110 using a laser machine.

[0040] In an optional embodiment, the gap between two adjacent first vent holes 112 is less than or equal to 2 mm. It should be understood that using laser drilling for the first vent holes 112 can control the gap between two adjacent first vent holes 112 within 2 mm, which can help ensure the thermal insulation performance of the product.

[0041] In optional embodiments, the shape of the first exhaust hole 112 can be circular, rectangular, etc., and this utility model embodiment does not impose specific requirements or limitations on it. Figure 3 As shown, in this embodiment, the first exhaust hole 112 is circular. However, this is not the only possibility; in other embodiments of this invention, the first exhaust hole 112 can also be rectangular, irregular in shape, etc. Furthermore, it should be noted that multiple first exhaust holes 112 can all be set to a certain shape. For example, all first exhaust holes 112 can be circular, some can be circular, others can be rectangular, and still others can be irregular in shape. In other words, this embodiment of the invention does not impose specific requirements or limitations on the shape of the multiple first exhaust holes 112.

[0042] Optionally, in this embodiment, the thickness of the inner lining body 110 ranges from 0.6 cm to 1.2 cm. It should be noted that, in this embodiment of the present invention,

[0043] Optionally, in this embodiment, the inner lining body 110, the support protrusion 120, and the mounting structure 130 are manufactured using an integral molding process. For example, they can be manufactured using a vacuum-formed sheet.

[0044] Please see Figure 4 In this embodiment of the present invention, the supporting protrusion 120 is provided with a plurality of second vent holes 122. Optionally, the laser-drilled refrigerator liner 100 provided in this embodiment of the present invention can utilize an ultraviolet picosecond laser machine to automatically drill the second vent holes 122, thereby saving labor costs and improving work efficiency. Of course, this is not the only option; in other embodiments of the present invention, other methods can also be used to achieve automated laser drilling of the second vent holes 122, and this embodiment of the present invention does not impose specific requirements or limitations on this.

[0045] In an optional embodiment, the aperture value of the plurality of second vent holes 122 ranges from 0.05mm to 0.2mm. Laser drilling of the second vent holes 122 can control the aperture value within this range. As mentioned earlier, manually drilled holes have larger aperture values, and the foamed material easily overflows through the vents after the air is expelled. Because the reaction speed and expansion of the foamed material cannot be precisely controlled, the overflow is also uncontrollable. Excessive overflow not only affects the product's thermal insulation performance but also requires additional manual cleaning. Even a small amount of overflow affects the product's appearance. Laser drilling, however, results in smaller aperture values ​​for the second vent holes 122, with aperture values ​​between 0.05mm and 0.2mm. This prevents foamed material from overflowing through the holes, thus helping to ensure the product's thermal insulation performance.

[0046] In an optional embodiment, the gap between two adjacent second vent holes 122 is less than or equal to 2 mm. Laser drilling of the second vent holes 122 can control the gap between two adjacent second vent holes 122 to within 2 mm, which helps to ensure the product's thermal insulation performance.

[0047] Optionally, in this embodiment, the plurality of second exhaust holes 122 can be arranged in an array. Of course, this is not the only possibility; in other embodiments of this invention, the plurality of second exhaust holes 122 can be arranged in other ways, and this embodiment does not impose specific requirements or limitations on this. Arranging the plurality of second exhaust holes 122 in an even array increases aesthetics and neatness, and also facilitates drilling holes in the support protrusion 120 using a laser machine.

[0048] Optionally, in this embodiment, the arrangement of the plurality of first exhaust holes 112 and the plurality of second exhaust holes 122 is basically the same.

[0049] In optional embodiments, the shape of the second exhaust port 122 can be circular, rectangular, etc., and this utility model embodiment does not impose specific requirements or limitations on this. Figure 4 As shown, in this embodiment, the second exhaust hole 122 is circular. However, this is not the only possibility; in other embodiments of this invention, the second exhaust hole 122 can also be rectangular, irregular in shape, etc. Furthermore, it should be noted that multiple second exhaust holes 122 can all be set to a certain shape. For example, all second exhaust holes 122 can be circular, some can be circular, others can be rectangular, and still others can be irregular in shape. In other words, this embodiment of the invention does not impose specific requirements or limitations on the shape of the multiple second exhaust holes 122.

[0050] Optionally, in this embodiment, the shapes of the plurality of first exhaust holes 112 and the plurality of second exhaust holes 122 are substantially the same.

[0051] Further, in an optional embodiment, the support protrusion 120 has a connecting surface 121 that connects the top surface of the support protrusion 120 to the inner liner body 110, and a second vent 122 is formed on the connecting surface 121. Optionally, the connecting surface 121 is generally at an angle to the surface of the inner liner body 110.

[0052] This utility model embodiment also provides a refrigerator including the laser-drilled refrigerator liner 100 of any of the foregoing embodiments. The refrigerator liner is provided with multiple first vent holes 112 by laser drilling, which can effectively reduce or avoid leakage problems during the foaming process of the refrigerator door liner, increase the venting volume, improve the foaming quality, and eliminate the need for sealing tape, making the production of the refrigerator liner simpler and more convenient.

[0053] It should be noted that, in this embodiment of the utility model, the laser-drilled refrigerator liner can be prepared in a single process, which may include the following steps: First, the sheet material with the above-mentioned thickness requirements is processed into a refrigerator door liner through processes such as vacuum forming, preheating, heating, forming, and edge trimming; the formed liner is then perforated at the designated points using an ultraviolet picosecond laser machine to obtain a laser-drilled refrigerator liner 100 with a first exhaust hole 112 and a second exhaust hole 122.

[0054] Please refer to the following: Figure 1 value Figure 4This utility model embodiment provides a laser-perforated refrigerator liner 100 and a refrigerator. The liner body 110 is the main part of the laser-perforated refrigerator liner 100. A supporting protrusion 120 supports the liner body 110, and an mounting structure 130 mounts the liner body 110 onto the refrigerator door. In this embodiment, the liner body 110 has a first vent 112. This first vent 112 is laser-perforated, which can effectively reduce or avoid leakage during the foaming process of the refrigerator door liner, increase venting volume, and improve foaming quality. It should also be noted that in known prior art, holes are mainly punched manually. These holes are relatively large, and refrigerator liners perforated in this way are prone to leakage during foaming, affecting foaming quality. Furthermore, sealing tape is required, increasing manufacturing complexity. Compared to this prior art, the laser-perforated refrigerator liner 100 provided by this utility model embodiment does not cause foam material to overflow, requires no additional cleaning process, and does not affect the product appearance. This significantly improves or solves the problem of low exhaust efficiency in existing solutions. Furthermore, by using laser-drilled perforated refrigerator lining 100, the density and number of exhaust vents can be increased, resulting in not only high exhaust efficiency but also multiple independent exhaust channels. Even when other exhaust channels are blocked, exhaust continues uninterrupted, maximizing exhaust capacity. The high filling rate and low air bubble count of the foam material within the product ensure its thermal insulation performance.

[0055] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0056] The above descriptions are merely various embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A laser-drilled refrigerator liner for installation on a refrigerator door shell, characterized in that, The laser-drilled refrigerator liner (100) includes: a liner body (110), a support protrusion (120), and an installation structure (130). The support protrusion (120) and the installation structure (130) are both disposed on the liner body (110). The installation structure (130) is used to connect with the refrigerator door shell. The liner body (110) has multiple first exhaust holes (112) formed by laser drilling.

2. The laser-drilled refrigerator liner according to claim 1, characterized in that, The aperture values ​​of the plurality of first exhaust holes (112) range from 0.05 mm to 0.2 mm.

3. The laser-drilled refrigerator liner according to claim 2, characterized in that, The aperture values ​​of the plurality of first exhaust holes (112) are all the same.

4. The laser-drilled refrigerator liner according to any one of claims 1-3, characterized in that, The plurality of first exhaust holes (112) are arranged in an array evenly.

5. The laser-drilled refrigerator liner according to any one of claims 1-3, characterized in that, The gap between two adjacent first exhaust holes (112) is less than or equal to 2 mm.

6. The laser-drilled refrigerator liner according to claim 1, characterized in that, The thickness of the inner lining body (110) ranges from 0.6cm to 1.2cm.

7. The laser-drilled refrigerator liner according to claim 1, characterized in that, The inner lining body (110), the support protrusion (120), and the mounting structure (130) are manufactured using an integral molding process.

8. The laser-drilled refrigerator liner according to claim 1, characterized in that, The support protrusion (120) is provided with a plurality of second vent holes (122).

9. The laser-drilled refrigerator liner according to claim 8, characterized in that, The support protrusion (120) has a connecting surface (121) that connects the top surface of the support protrusion (120) to the inner lining body (110), and the second vent (122) is opened on the connecting surface (121).

10. A refrigerator, characterized in that, Includes the laser-drilled refrigerator liner (100) as described in any one of claims 1-9.

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