Heat preservation door plate for cold storage door
By introducing components such as a heat-conducting layer, a partition area, and a refrigeration layer into the cold storage door panel, the problem of insufficient insulation in cold storage doors is solved, achieving higher insulation performance and structural strength, and ensuring the stability and durability of the temperature inside the cold storage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2026-03-24
AI Technical Summary
The existing cold storage doors have insufficient insulation, which leads to continuous heat transfer and affects the temperature stability of the cold storage. In addition, the door frame material and the structural strength of the polyurethane foam are not strong enough, affecting the overall strength of the cold storage door.
An insulated door panel for cold storage has been designed, comprising a door frame, a heat-conducting layer, a partition area, a partition, a filling layer, and a refrigeration layer. By combining high thermal conductivity materials and high-strength composite materials, the structural strength is enhanced and heat conduction is optimized. Combined with refrigeration components, the temperature inside the cold storage is maintained.
It improves the insulation effect of cold storage doors, reduces heat loss, enhances the structural strength of door frames, ensures the stability and consistency of temperature inside the cold storage, and can withstand greater mechanical stress and environmental pressure.
Smart Images

Figure CN224034111U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to cold storage heat preservation door technical field, concretely is a kind of cold storage door heat preservation door panel. BACKGROUND
[0002] Cold storage door is used, to maintain the temperature inside, reduce temperature loss, generally inside is filled with polyurethane foam, can play good heat preservation measure, but its use, the structure strength of polyurethane foam filling is not enough high, the strength of cold storage door is not enough, and the material of door frame also can cause the influence to temperature, simultaneously, only rely on heat preservation measure, can only maintain, and temperature is continuous conduction, still can influence the temperature of cold storage, based on this, the present application provides a kind of cold storage door heat preservation door panel. SUMMARY
[0003] In view of the deficiencies of prior art, the utility model provides a kind of cold storage door heat preservation door panel, solve the problem that the temperature of cold storage is still influenced in the heat preservation door of prior art only by heat preservation measure.
[0004] The cold storage door heat preservation door panel of the utility model, including the heat preservation door for cold storage, the heat preservation door includes door frame and the temperature guide layer of the door frame outer side setting;
[0005] The inner side of the door frame is provided with one or more interval areas, and the interval areas are arranged in an equidistant linear array.
[0006] The inner side of the two interval areas is provided with a partition layer, and the two ends of the partition layer are fixed to the inner walls of the door frame on both sides for reinforcement.
[0007] As a further improvement of the utility model, the inner side of the interval area is provided with a filling layer close to the inner side of the cold storage, and a temperature guide layer is provided on the side away from the cold storage for heat dissipation.
[0008] As a further improvement of the utility model, the inner side of the door frame is provided with an inner cavity, and the inner side of the inner cavity is filled with a filler for reinforcing the door frame.
[0009] As a further improvement of the utility model, the partition layer includes a body, the cross section of the body is in the shape of an I-beam, and the two sides are adapted to the inner walls of the door frame.
[0010] As a further improvement of the utility model, the two sides of the body semi-wrap the temperature guide layer and the interval area, and the inner side of the body is provided with a hollow area.
[0011] As a further improvement of the utility model, a refrigeration layer is installed at the hollow area of the body, and a refrigeration assembly is arranged at the refrigeration layer for maintaining the temperature close to the inner side of the cold storage.
[0012] As a further improvement of the utility model, the body is provided with a reinforcing layer on both sides, the reinforcing layer is provided with a honeycomb plate, and the honeycomb plate is matched with one of the temperature guide layers.
[0013] Compared with the prior art, the utility model has the beneficial effects as follows:
[0014] The combination of the interval area and the filling layer arranged in the interlayer realizes good heat preservation, the refrigeration layer arranged in the inner side of the interlayer can refrigerate the side close to the cold storage door, thereby compensating the temperature of the heat preservation door, further reducing the temperature loss of the cold storage, and improving the heat preservation effect of the heat preservation door.
[0015] The filling layer arranged in combination with the interval area can not only improve the structural strength of the heat preservation door, but also satisfy the effect of increasing temperature conduction, so that the temperature of the refrigeration layer can be further transmitted to the inner side of the cold storage, and the temperature in the cold storage can be better maintained. BRIEF DESCRIPTION OF DRAWINGS
[0016] The drawings described herein are used to provide further understanding of the present application, constitute a part of the present application, and the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:
[0017] Figure 1 It is a three-dimensional structure schematic view of the heat preservation door of the utility model;
[0018] Figure 2 It is a front view structure schematic view of the heat preservation door of the utility model;
[0019] Figure 3 It is a three-dimensional structure schematic view of the heat preservation door of the utility model Figure 3 It is a B-B cross-sectional structure schematic view of the utility model;
[0020] Figure 4 It is a three-dimensional structure schematic view of the interlayer of the utility model;
[0021] Figure 5 It is a side view structure schematic view of the interlayer of the utility model;
[0022] Figure 6 It is a three-dimensional structure schematic view of the heat preservation door of the utility model Figure 5 It is a B-B cross-sectional structure schematic view of the utility model;
[0023] Figure 7 It is a front view structure schematic view of the interlayer of the utility model.
[0024] In the drawings: 1, heat preservation door; 2, interlayer;
[0025] 11, door frame; 12, temperature guide layer; 13, interval area; 14, inner cavity; 15, filling layer;
[0026] 21. Main body; 22. Inner layer; 23. Cooling layer; 24. Reinforcing layer. Detailed Implementation
[0027] The following illustrations will reveal several embodiments of the present invention. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these physical details are not essential. Furthermore, for the sake of simplicity, some conventional structures and components will be shown in a simple schematic manner in the illustrations.
[0028] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0029] Please see Figures 1-7 In cold storage doors, to maintain the internal temperature and reduce heat loss, the interior is typically filled with polyurethane foam, which provides good insulation. However, the structural strength of the polyurethane foam filler is not high enough, resulting in insufficient strength for the cold storage door. Furthermore, the material of the door frame 11 also affects temperature. Moreover, relying solely on insulation can only maintain the temperature; since heat is continuously conducted, it will still affect the overall temperature of the cold storage. Therefore, this application provides an insulated door panel 1 for cold storage, including an insulated door 1 for cold storage.
[0030] The insulated door 1 includes a door frame 11 and a heat-conducting layer 12 disposed on the outside of the door frame 11;
[0031] One or more interval regions 13 are provided on the inner side of the door frame 11, and the interval regions 13 are arranged in a linear array at equal intervals;
[0032] A partition 2 is provided on the inner side of the two partition areas 13. The two ends of the partition 2 are fixed to the inner walls of the door frame 11 for reinforcement.
[0033] The thermally conductive layer 12 is located on the outside of the door frame 11 and is made of a material with high thermal conductivity, such as copper or aluminum. It can quickly conduct external heat, reduce heat accumulation on the surface of the door frame 11, and thus improve the insulation effect.
[0034] The interval regions 13 are arranged in a linear array at equal intervals on the inner side of the door frame 11, which not only provides enough space for filling material, but also increases the structural strength of the door frame 11.
[0035] The spacing areas 13 are arranged in a linear array, ensuring uniform distance between each area and preventing uneven heat distribution inside the door frame 11. In addition, the linear array arrangement also facilitates installation and maintenance.
[0036] The interlayer 2 is made of high-strength composite materials such as carbon fiber reinforced polymer (CFRP), which has excellent mechanical properties and weather resistance, can effectively conduct heat, and at the same time provide additional support force.
[0037] The two ends of the interlayer 2 are fixed to the inner walls of the door frame 11 by bolts or welding, ensuring that the interlayer 2 does not loosen or deform during use. The fixing method of the interlayer 2 not only enhances the overall structural strength of the door frame 11, but also improves the stability of the insulation door 1.
[0038] The filling material is polyurethane foam, and reinforcing fibers (such as glass fibers or carbon fibers) are added inside.
[0039] The filling material not only fills between the interlayer 2 and the door frame 11, but also fills between the interlayer 2 and the refrigeration layer 23, improving the insulation performance and enhancing the overall strength of the door panel.
[0040] The high-thermal-conductivity material of the temperature-conducting layer 12 can quickly conduct external heat, reducing the accumulation of heat on the surface of the door frame 11, thereby improving the insulation effect. The multi-level filling design not only improves the insulation performance, but also reduces the thermal bridge effect inside the cold storage door, effectively reducing the continuous conduction of temperature.
[0041] The addition of reinforcing fibers in the filling material improves the structural strength of the filling material, allowing the cold storage door to withstand greater mechanical stress and environmental pressure during use, and is not prone to deformation or damage.
[0042] The two ends of the interlayer 2 are fixed to the inner walls of the door frame 11 by bolts or welding, ensuring that the interlayer 2 does not loosen or deform during use, and enhancing the overall structural strength of the door frame 11.
[0043] The inner side of the spacing area 13 near the inside of the cold storage is provided with a filling layer 15, and the side near the outside of the cold storage is provided with a temperature-conducting layer 12 for conducting heat.
[0044] The inner side of the door frame 11 is provided with an inner cavity 14, and the inner side of the inner cavity 14 is filled with a filler for reinforcing the door frame 11.
[0045] The filling layer 15 is located on the inner side of the spacing area 13, near the inside of the cold storage. The filling layer 15 is made of high-density polyurethane foam, and reinforcing fibers (such as glass fibers or carbon fibers) are added inside, ensuring sufficient insulation performance and structural strength.
[0046] The temperature-conducting layer 12 is located on one side of the outer side of the cold storage and is made of high-thermal-conductivity material such as copper or aluminum. It can quickly conduct external heat and reduce the accumulation of heat on the surface of the door frame 11. The design of the temperature-conducting layer 12 also takes into account the seamless connection with the filling layer 15, ensuring the efficiency and stability of heat conduction.
[0047] The inner side of the door frame 11 is designed with one or more inner cavities 14, each of which is rectangular or trapezoidal in shape, not only providing enough space for the filling material, but also increasing the structural strength of the door frame 11.
[0048] The inner cavities 14 are filled with high-density foam or rock wool on the inner side, which not only has excellent thermal insulation performance, but also provides additional support to enhance the overall structural strength of the door frame 11.
[0049] The inner cavities 14 and the filling layer 15 are fixed together through a connecting structure such as a buckle or a bolt, ensuring that they do not loosen or deform during use. This connection not only improves the structural strength of the door frame 11, but also enhances the insulation effect.
[0050] The closed nature of the inner cavities 14 ensures that the filling material does not leak or deform during use. The closed nature of the inner cavities 14 also reduces heat exchange between the inside and outside of the cold storage door, improving the insulation performance.
[0051] The filling layer 15 is made of high-density polyurethane foam with reinforced fibers added inside, improving insulation performance and structural strength. This high-density filling layer 15 effectively reduces the thermal bridge effect inside the cold storage door, reducing the continuous conduction of temperature. The temperature-conducting layer 12 is made of high-thermal-conductivity material, which can quickly conduct external heat and reduce the accumulation of heat on the surface of the door frame 11, further improving the insulation effect. The inner cavities 14 are filled with high-density foam or rock wool on the inner side, providing additional support to enhance the overall structural strength of the door frame 11. This design allows the cold storage door to withstand greater mechanical stress and environmental pressure during use, making it less prone to deformation or damage. The inner cavities 14 and the filling layer 15 are fixed together through a special connecting structure, ensuring that they do not loosen or deform during use, enhancing the overall stability of the door frame 11.
[0052] The seamless connection of the temperature-conducting layer 12 and the filling layer 15 enhances the efficiency and stability of heat conduction, further optimizing temperature distribution.
[0053] The partition layer 2 includes a body 21, which is I-shaped in cross-section and fits the inner wall of the door frame 11 on both sides.
[0054] The two sides of the body 21 semi-wrap the temperature-conducting layer 12 and the spacing area 13, and the inner side of the body 21 is provided with a hollow area 22.
[0055] The hollow area 22 of the body 21 is provided with a refrigeration layer 23, and the refrigeration layer 23 is provided with a refrigeration assembly for maintaining the temperature close to the inner side of the cold storage.
[0056] The body 21 is provided with a reinforcing layer 24 on both sides, and the reinforcing layer 24 is provided with a honeycomb plate which is matched with one of the temperature guide layers 12.
[0057] The partition layer 2 includes a body 21 in the shape of an I-beam, which is designed in the shape of an I-beam in cross-section, which provides higher strength and stability. The two sides are matched with the inner wall of the door frame 11, which ensures that the partition layer 2 is tightly fitted inside the door frame 11, reducing heat loss.
[0058] The I-beam cross-section not only provides higher structural strength, but also increases the stability of the partition layer 2, so that the partition layer 2 is not easy to deform or damage during use, and the durability of the entire cold storage door is enhanced.
[0059] The body 21 is semi-wrapped on both sides of the temperature guide layer 12 and the spacing area 13, which ensures that the temperature guide layer 12 and the spacing area 13 are tightly combined with the partition layer 2, improving the heat conduction effect. The semi-wrapped structure also reduces the heat dissipation inside the door frame 11, further improving the heat preservation performance.
[0060] The inner side of the body 21 is provided with a hollow area 22, which provides space for the installation of the refrigeration layer 23. The design of the hollow area 22 not only reduces the weight of the partition layer 2, but also enhances the heat insulation performance of the partition layer 2.
[0061] The hollow area 22 is internally provided with a refrigeration layer 23, which is connected with the refrigeration system inside the cold storage, so that the refrigeration effect can directly act on the inner side of the partition layer 2, reducing the heat conduction from the inside of the cold storage door to the outside.
[0062] The refrigeration layer 23 is provided with refrigeration assemblies, which can maintain the temperature close to the inner side of the cold storage, ensuring that the temperature inside the cold storage does not rise sharply when the cold storage door is opened. For example, the refrigeration side of the semiconductor refrigeration assembly is located close to the inner side of the cold storage;
[0063] In order to avoid the heat accumulation on one side of the semiconductor refrigeration assembly, the heat conduction can be realized by cooperating with the outermost side of the heat preservation door, and the Figure 2 The fan arranged in the middle can accelerate the temperature of the heat generating side of the semiconductor refrigeration assembly;
[0064] The body 21 is provided with a reinforcing layer 24 on both sides, and the reinforcing layer 24 is provided with a honeycomb plate which is matched with one of the temperature guide layers 12. The structural strength of the partition layer 2 is enhanced, which not only improves the durability of the partition layer 2, but also optimizes the heat conduction effect.
[0065] The honeycomb plate has the characteristics of high strength and light weight, can provide additional support force, and enhances the stability of the partition layer 2.
[0066] The partition layer 2 with a I-shaped cross section provides higher structural strength and stability, reduces heat dissipation inside the door frame 11, and improves the heat preservation effect.
[0067] The semi-wrapped structure ensures that the temperature guide layer 12 and the interval area 13 are closely combined with the partition layer 2, further improving the heat conduction effect and reducing heat loss.
[0068] The hollow area 22 is internally provided with a refrigeration layer 23 connected with the refrigeration system inside the cold storage, which directly acts on the inside of the partition layer 2, reduces heat conduction, effectively reduces the thermal bridge effect inside the cold storage door, and ensures the stability and consistency of the temperature inside the cold storage.
[0069] The refrigeration assembly can maintain the temperature near the inside of the cold storage, ensuring that the temperature inside the cold storage does not rise sharply when the cold storage door is opened.
[0070] The above is only an embodiment of the present application and is not used to limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the scope of the claims of the present application.
Claims
1. An insulated door panel for cold storage, comprising an insulated door (1) for cold storage. Its features are: The insulated door (1) includes a door frame (11) and a heat-conducting layer (12) disposed on the outside of the door frame (11). The inner side of the door frame (11) is provided with one or more interval regions (13), and the interval regions (13) are arranged in a linear array at equal intervals; A partition (2) is provided on the inner side of the two interval areas (13), and the two ends of the partition (2) are fixed to the inner walls of the door frame (11) for reinforcement.
2. The insulated door panel for cold storage doors according to claim 1, characterized in that: A filling layer (15) is provided on the inner side of the interval area (13) near the inner side of the cold storage, and a heat-conducting layer (12) is provided on the outer side of the cold storage to dissipate heat.
3. The insulated door panel for cold storage doors according to claim 1, characterized in that: The inner side of the door frame (11) is provided with an inner cavity (14), and the inner side of the inner cavity (14) is filled with a filler for reinforcing the door frame (11).
4. The insulated door panel for cold storage doors according to claim 1, characterized in that: The partition (2) includes a body (21) with an I-shaped cross-section and both sides adapted to the inner wall of the door frame (11).
5. The insulated door panel for cold storage doors according to claim 4, characterized in that: The body (21) partially encloses the thermal conductive layer (12) and the spacer area (13) on both sides, and a hollow area (22) is provided on the inner side of the body (21).
6. The insulated door panel for cold storage doors according to claim 4, characterized in that: A refrigeration layer (23) is installed in the hollow area (22) of the main body (21), and a refrigeration component is provided in the refrigeration layer (23) to maintain the temperature near the inside of the cold storage.
7. The insulated door panel for cold storage doors according to claim 4, characterized in that: The main body (21) has a reinforcing layer (24) on both sides, and a honeycomb panel is installed on the reinforcing layer (24). The honeycomb panel is adapted to one of the thermal conductive layers (12).