A panel and a low-temperature refrigerator including the same
By using a composite structure of stainless steel plate and honeycomb aluminum plate and a heat-conducting plate reinforcing rib design, the problems of slow cooling and high energy consumption in low-temperature refrigerators have been solved, achieving faster cooling speed and more uniform temperature distribution.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 青岛海容惠康生物医疗控股有限公司
- Filing Date
- 2025-07-07
- Publication Date
- 2026-06-26
Smart Images
Figure CN224415510U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of refrigeration equipment technology, specifically relating to a shelf and a low-temperature refrigerator including the shelf. Background Technology
[0002] Low-temperature refrigerators are used to store food and medical supplies that require low-temperature preservation and have been widely applied. Cooling time and temperature uniformity are important parameters for evaluating the performance of low-temperature refrigerators.
[0003] In existing technologies, the temperatures inside cryogenic freezers cause ordinary metals to become brittle, while stainless steel exhibits excellent low-temperature toughness and can withstand heavy loads (such as biological samples and reagent kits). Therefore, the shelves of cryogenic freezers are generally made of thick stainless steel plates. However, when the stainless steel plate is thicker, more energy is required to cool the metal during cooling, resulting in a slower cooling rate. Furthermore, stainless steel has a low thermal conductivity, which is not conducive to uniform temperature distribution inside the freezer, leading to low temperature uniformity efficiency.
[0004] Therefore, how to provide a shelf for a low-temperature refrigerator with fast cooling speed and high temperature uniformity is a technical problem that urgently needs to be solved. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a shelf and a low-temperature refrigerator including the shelf. By adopting a composite structure of stainless steel plate and honeycomb aluminum plate, the thickness of the stainless steel panel can be reduced, significantly reducing the overall weight of the shelf and reducing the heat load during cooling, thereby shortening the cooling time. The honeycomb aluminum plate has excellent thermal conductivity, which can quickly conduct heat, improve the uniformity of temperature distribution inside the refrigerator, and improve the temperature uniformity efficiency.
[0006] This utility model provides a shelf, comprising:
[0007] Panels, including stainless steel sheets;
[0008] The honeycomb aluminum panel is fixedly connected to the bottom of the panel to improve the strength and thermal conductivity of the layer. Non-honeycomb structure installation positions are reserved on the bottom side of the panel near the inner liner.
[0009] This technical solution utilizes a composite structure of stainless steel plate and honeycomb aluminum plate, which reduces the thickness of the stainless steel panel, significantly reduces the overall weight of the shelf, and reduces the heat load during cooling, thereby shortening the cooling time. The honeycomb aluminum plate has excellent thermal conductivity, which can quickly conduct heat, improve the uniformity of temperature distribution inside the chamber, and increase the temperature uniformity efficiency.
[0010] In some embodiments, the shelf also includes a heat-conducting plate, which is mounted on a non-honeycomb structure mounting position on the bottom surface of the panel and in close contact with the inner wall and the bottom surface of the panel to accelerate heat conduction.
[0011] This technical solution establishes an efficient heat transfer path from the inner wall to the shelves by setting up a heat-conducting plate. By using direct metal heat conduction to replace air convection, it can significantly improve temperature transfer efficiency and shorten the time for temperature uniformity inside the chamber.
[0012] In some embodiments, the heat-conducting plate is L-shaped, and the L-shaped heat-conducting plate includes a first contact surface and a second contact surface. The first contact surface is tightly fitted to the inner wall of the liner, and the second contact surface is tightly fitted to the bottom surface of the panel.
[0013] This technical solution not only increases the thermally conductive contact area, but also enhances structural stability through a three-dimensional connection method, making heat conduction more uniform and reliable.
[0014] In some embodiments, the first contact surface has mounting holes, and the heat-conducting plate is connected to the inner liner by bolts through the mounting holes.
[0015] This technical solution ensures both minimal thermal resistance due to close contact between the heat-conducting plate and the inner wall, and facilitates disassembly and maintenance.
[0016] In some embodiments, the shelf also includes reinforcing ribs fixedly connected to the underside of the panel to improve the strength of the shelf.
[0017] This technical solution significantly improves the overall structural strength of the shelf by adding reinforcing ribs, ensuring that it can withstand heavy loads in low-temperature environments while reducing weight.
[0018] In some embodiments, multiple reinforcing ribs are provided, which divide the honeycomb aluminum panel into multiple areas.
[0019] In some embodiments, the panel has a downwardly extending, integrally molded underflush on the side near the refrigerator door.
[0020] This technical solution effectively enhances the bending stiffness of the panel edge by setting the downward-facing edge.
[0021] In some embodiments, the panel has an integrally molded upturned edge extending upwards on the side near the refrigerator liner.
[0022] The upward-folding edge of the smart cabinet in this technical solution can serve as an anti-slip barrier for items, and the continuous bending structure can significantly improve the longitudinal strength of the panel.
[0023] Based on the aforementioned shelves, this utility model also provides a low-temperature refrigerator, including the aforementioned shelves.
[0024] This technical solution uses the aforementioned shelves, which enables the low-temperature refrigerator to achieve a faster cooling speed and a more uniform temperature distribution. At the same time, it reduces the refrigerator load, lowers energy consumption, and solves the technical problems of slow cooling and high energy consumption in traditional stainless steel shelf refrigerators.
[0025] Based on the above solutions, the shelf and the low-temperature refrigerator including it in this embodiment of the present invention utilize a composite structure of stainless steel plate and honeycomb aluminum plate. This reduces the thickness of the stainless steel panel, significantly lowers the overall weight of the shelf, reduces the heat load during cooling, and thus shortens the cooling time. Furthermore, the stainless steel panel retains the excellent toughness of stainless steel in low-temperature environments, ensuring that the shelf will not become brittle under low-temperature conditions and maintaining structural reliability. The honeycomb aluminum plate has excellent thermal conductivity (the thermal conductivity of aluminum is much higher than that of stainless steel), enabling rapid heat conduction, improving the uniformity of temperature distribution inside the refrigerator, and increasing temperature uniformity efficiency. The structural characteristics of the honeycomb aluminum plate provide sufficient support strength while reducing weight, ensuring that the shelf can withstand heavy loads. By reserving non-honeycomb structure mounting positions on the bottom surface of the panel, reasonable installation space is provided for other functional components, facilitating the optimized design of the overall structure. In summary, the shelf in this embodiment, through the composite structure design of stainless steel panel and honeycomb aluminum panel, maintains the low-temperature toughness and load-bearing capacity of stainless steel while significantly reducing the weight of the shelf by utilizing honeycomb aluminum panel, thereby reducing cooling energy consumption and shortening cooling time; the high thermal conductivity of honeycomb aluminum panel improves the temperature uniformity inside the box and increases the temperature uniformity efficiency. Attached Figure Description
[0026] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:
[0027] Figure 1 This is a bottom perspective view of the shelf in an embodiment of this utility model;
[0028] Figure 2 This is a top perspective view of the shelf in an embodiment of the present invention;
[0029] Figure 3 This is a top perspective view of the low-temperature refrigerator in the embodiment of this utility model;
[0030] Figure 4 This is a bottom-view perspective view of the low-temperature refrigerator in an embodiment of this utility model.
[0031] Figure 5 for Figure 4 An enlarged schematic diagram of part A in the middle.
[0032] In the picture:
[0033] 1. Panel; 2. Reinforcing ribs; 3. Honeycomb aluminum panel; 4. Heat-conducting plate; 5. Supporting components; 6. Positioning strips; 7. Inner liner;
[0034] 101. Lower flange; 102. Upper flange; 401. Mounting hole. Detailed Implementation
[0035] The technical solutions in 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 a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0036] In the description of this utility model, it should be understood that the terms "center", "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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.
[0037] 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 technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
[0038] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 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.
[0039] like Figures 1-5 As shown, in one embodiment of the shelf of this utility model and the low-temperature refrigerator including the shelf, the shelf includes a panel 1 and a honeycomb aluminum plate 3; wherein, the panel 1 includes a stainless steel plate; the honeycomb aluminum plate 3 is fixedly connected to the bottom of the panel 1 to improve the strength and thermal conductivity of the shelf, and non-honeycomb structure installation positions are reserved on the side of the bottom surface of the panel 1 near the inner liner 7.
[0040] In the above illustrative embodiments, the shelf provided by this utility model, by adopting a composite structure of stainless steel plate and honeycomb aluminum plate 3, can appropriately reduce the thickness of stainless steel panel 1, significantly reduce the overall weight of the shelf, reduce the heat load during cooling, and thus shorten the cooling time; and the stainless steel panel 1 retains the excellent toughness of stainless steel material in low-temperature environment, ensuring that the shelf will not become brittle under low-temperature conditions and maintain structural reliability; the honeycomb aluminum plate 3 has excellent thermal conductivity (the thermal conductivity of aluminum is much higher than that of stainless steel), which can quickly conduct heat, improve the uniformity of temperature distribution inside the box, and improve the temperature uniformity efficiency; the structural characteristics of the honeycomb aluminum plate 3 can provide sufficient support strength while reducing weight, ensuring that the shelf can withstand heavy loads; by reserving non-honeycomb structure installation positions on the bottom surface of panel 1, reasonable installation space is provided for other functional components, which facilitates the optimization design of the overall structure. In summary, the shelf in this embodiment, through the composite structure design of stainless steel panel 1 and honeycomb aluminum panel 3, maintains the low-temperature toughness and load-bearing capacity of stainless steel, while significantly reducing the weight of the shelf by utilizing honeycomb aluminum panel 3, thereby reducing cooling energy consumption and shortening cooling time; the high thermal conductivity of honeycomb aluminum panel 3 improves the temperature uniformity inside the box and increases the temperature uniformity efficiency.
[0041] In some embodiments, the honeycomb aluminum plate 3 is welded to the bottom surface of the panel 1.
[0042] In some embodiments, such as Figure 1 As shown, the shelf also includes a heat-conducting plate 4, which is installed at the non-honeycomb structure mounting position on the bottom surface of the panel 1 and is in close contact with the inner liner 7 wall and the bottom surface of the panel 1 to accelerate heat conduction. By setting the heat-conducting plate 4, an efficient heat conduction path is established from the inner liner 7 wall to the shelf. By using direct metal heat conduction to replace air convection, the temperature transfer efficiency can be significantly improved and the temperature uniformity time inside the chamber can be shortened.
[0043] In some embodiments, the heat-conducting plate 4 is made of a material with good thermal conductivity, including but not limited to copper, silver, aluminum and other materials.
[0044] In some embodiments, such as Figure 4 As shown, to further improve the temperature uniformity efficiency, the heat conduction plate 4 is provided with multiple [features / equipments].
[0045] In some embodiments, such as Figure 4 As shown, the heat-conducting plate 4 is L-shaped. The L-shaped heat-conducting plate 4 includes a first contact surface and a second contact surface. The first contact surface is tightly fitted to the inner liner 7 wall, and the second contact surface is tightly fitted to the bottom surface of the panel 1. The double contact surface design of the L-shaped structure achieves a double tight fit with both the inner liner 7 wall and the panel 1, which not only increases the heat-conducting contact area, but also enhances the structural stability through a three-dimensional connection method, making heat conduction more uniform and reliable.
[0046] In some embodiments, such as Figure 1As shown, the first contact surface has a mounting hole 401, and the heat-conducting plate 4 is bolted to the inner liner 7 through the mounting hole 401. By setting the mounting hole 401 on the heat-conducting plate 4 and using bolt connection, it not only ensures tight contact between the heat-conducting plate 4 and the inner liner 7 wall and minimizes thermal resistance, but also facilitates disassembly and maintenance. At the same time, the bolt preload ensures that no gaps will be generated due to thermal expansion and contraction during long-term use.
[0047] In some embodiments, such as Figure 1 As shown, the shelf also includes reinforcing ribs 2, which are fixedly connected to the bottom of the panel 1 to improve the strength of the shelf. The addition of reinforcing ribs 2 significantly enhances the overall structural strength of the shelf, ensuring it can withstand heavy loads in low-temperature environments while reducing weight, thus solving the problem of insufficient rigidity that may result from a thinner design.
[0048] In some embodiments, the reinforcing rib 2 is made of a material with good thermal conductivity, including but not limited to copper, silver, aluminum and other materials.
[0049] In some embodiments, the reinforcing rib 2 is welded to the bottom surface of the panel 1.
[0050] In some embodiments, such as Figure 1 As shown, there are multiple reinforcing ribs 2, which divide the honeycomb aluminum panel 3 into multiple areas.
[0051] In some embodiments, such as Figure 2 As shown, panel 1 has a downwardly extending, integrally formed flange 101 on the side near the refrigerator door. The flange 101 effectively enhances the bending stiffness of the edge of panel 1.
[0052] In some embodiments, such as Figure 2 As shown, the panel 1 has an upwardly extending, one-piece molded flange 102 on the side near the refrigerator liner 7. The upwardly extending, one-piece molded flange 102 serves as an anti-slip edge for items and significantly improves the longitudinal strength of the panel 1 through a continuous bending structure. Its seamless one-piece design avoids stress concentration at the joints in low-temperature environments.
[0053] Based on the above-mentioned layers, such as Figure 3 As shown, this utility model also provides a low-temperature refrigerator, which includes the aforementioned shelves.
[0054] In the above illustrative embodiment, the low-temperature refrigerator in this embodiment, by adopting the above-mentioned shelves, can achieve a faster cooling speed and a more uniform temperature distribution, while reducing the refrigerator load and energy consumption, thus solving the technical problems of slow cooling and high energy consumption of traditional stainless steel shelf refrigerators.
[0055] It should be noted that when installing the above-mentioned shelves inside the low-temperature refrigerator, first place the combined structure of panel 1, reinforcing rib 2, and honeycomb aluminum plate 3 inside the refrigerator, and then fix the heat-conducting plate 4 to the inner liner of the refrigerator.
[0056] In some embodiments, such as Figure 4 As shown, the inner wall of the refrigerator liner 7 is provided with a support member 5 for supporting the shelves. The support member 5 provides stable support for the shelves.
[0057] In some embodiments, such as Figure 4 As shown, the inner wall of the refrigerator liner 7 is provided with vertical positioning strips 6, and the support member 5 is detachably connected to the positioning strips 6. Multiple positioning strips 6 are provided, and each positioning strip 6 is provided with a support member 5 for securing the shelves. The vertical positioning strips 6 enable modular installation of the shelves, facilitating maintenance and replacement, while ensuring the accuracy and consistency of the shelf installation positions.
[0058] In some embodiments, such as Figure 5 As shown, the positioning strip 6 has multiple height adjustment holes. The support member 5 connects to the positioning strip 6 through different height adjustment holes, enabling adjustable shelf height. The adjustment holes allow the support member 5 to be installed at different heights, flexibly adjusting the shelf height to meet the space requirements of different stored items and improving the refrigerator's space utilization.
[0059] In some embodiments, such as Figure 5 As shown, multiple adjustment holes are evenly distributed along the length of the positioning strip 6.
[0060] Through the description of several embodiments of the shelf of this utility model and the low-temperature refrigerator including the same, it can be seen that the shelf of this utility model and the low-temperature refrigerator including the same have at least one or more of the following advantages.
[0061] 1. The shelf provided by this utility model, by adopting a composite structure of stainless steel plate and honeycomb aluminum plate 3, can reduce the thickness of stainless steel panel 1, significantly reduce the overall weight of the shelf, reduce the heat load during cooling, and thus shorten the cooling time.
[0062] 2. The shelf provided by this utility model has a stainless steel panel 1 that retains the excellent toughness of stainless steel in low-temperature environments, ensuring that the shelf will not become brittle under low-temperature conditions and maintaining structural reliability; the honeycomb aluminum panel 3 has excellent thermal conductivity (the thermal conductivity of aluminum is much higher than that of stainless steel), which can quickly conduct heat, improve the uniformity of temperature distribution inside the box, and improve the temperature uniformity efficiency.
[0063] 3. The shelf provided by this utility model establishes an efficient heat conduction path from the inner wall of the liner 7 to the shelf through the setting of the heat conduction plate 4. By using direct heat conduction of metal to replace air convection, the temperature transfer efficiency can be significantly improved and the temperature uniformity time in the box can be shortened.
[0064] 4. The low-temperature refrigerator provided by this utility model, by adopting the above-mentioned shelves, enables the low-temperature refrigerator to achieve a faster cooling speed and a more uniform temperature distribution, while reducing the refrigerator load and energy consumption, thus solving the technical problems of slow cooling and high energy consumption of traditional stainless steel shelf refrigerators.
[0065] Finally, it should be noted that 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.
[0066] The above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.
Claims
1. A shelf, characterized in that, For use as shelves inside a refrigerator, including: Panels, including stainless steel sheets; The honeycomb aluminum panel is fixedly connected to the bottom of the panel to improve the strength and thermal conductivity of the layer. Non-honeycomb structure installation positions are reserved on the bottom side of the panel near the inner liner.
2. The shelf according to claim 1, characterized in that, The shelf also includes a heat-conducting plate, which is installed in the non-honeycomb structure mounting position on the bottom surface of the panel and is in close contact with the inner wall and the bottom surface of the panel to accelerate heat conduction.
3. The shelf according to claim 2, characterized in that, The heat-conducting plate is L-shaped, and includes a first contact surface and a second contact surface. The first contact surface is in close contact with the inner wall, and the second contact surface is in close contact with the bottom surface of the panel.
4. The shelf according to claim 3, characterized in that, The first contact surface has mounting holes, and the heat-conducting plate is connected to the inner liner by bolts through the mounting holes.
5. The shelf according to claim 1, characterized in that, The shelf also includes reinforcing ribs, which are fixedly connected to the bottom of the panel to improve the strength of the shelf.
6. The layer according to claim 5, characterized in that, The panel has multiple reinforcing ribs, which divide the honeycomb aluminum panel into multiple areas.
7. The shelf according to claim 1, characterized in that, The panel has a one-piece rolled edge that extends downwards on the side near the refrigerator door.
8. The shelf according to claim 1 or 7, characterized in that, The panel has an integrated, upward-extending flange on the side near the refrigerator liner.
9. A low-temperature refrigerator, characterized in that, Includes the laminate as described in any one of claims 1-8.