Heat preservation equipment
By using a whole piece of vacuum insulation plate to cover the outside of the inner liner, the problems of thermal bridge effect and high effective thermal conductivity caused by splicing seams are solved, and better insulation effect and cost reduction are achieved.
Patent Information
- Application Number
- CN202422141824.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-08-30
AI Technical Summary
The existing vacuum insulation plates produce joints at the splicing edges, resulting in thermal bridge effect and reducing thermal insulation effect. The vacuum insulation plate with a small area has high effective thermal conductivity, affecting the thermal insulation effect.
A whole piece of vacuum insulation plate is used to cover the bottom and sides of the outer side of the inner liner to eliminate splicing seams, increase the usable area, and reduce effective thermal conductivity.
It effectively improves the insulation effect, reduces energy loss, and reduces the usage and cost of vacuum insulation boards.
Smart Images
Figure CN223036018U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heat preservation, and particularly relates to a heat preservation device. Background Art
[0002] In the related art, a vacuum insulation panel can effectively reduce heat transfer caused by air thermal convection. It is an excellent heat preservation material and is widely used in various heat preservation products, such as refrigerators, freezers, insulation boxes, cold storage boxes, etc.
[0003] Currently, vacuum insulation panels are usually individually pasted on the respective inner surfaces of the outer shell of the heat preservation product one by one. However, seams will be generated at the splicing edges of different vacuum insulation panels. Due to the heat bridge effect, heat flow preferentially transfers through the splicing seams, thereby reducing the heat preservation effect. In addition, the effective thermal conductivity of the vacuum insulation panel is related to the area. The smaller the area, the higher the effective thermal conductivity. Therefore, it is necessary to use vacuum insulation panels with a large area as much as possible. Summary of the Utility Model
[0004] Embodiments of the utility model provide a heat preservation device to solve at least one of the above-mentioned technical problems.
[0005] A heat preservation device according to an embodiment of the utility model includes:
[0006] An inner container, the inner container is provided with a receiving cavity and an opening. The opening is provided on one side of the inner container along a first direction and communicates with the receiving cavity. The inner container includes an outer side surface facing away from the receiving cavity. The outer side surface includes a first bottom surface and a second bottom surface provided on the other side along the first direction. The first bottom surface is connected to the second bottom surface, and the distance between the first bottom surface and the opening is not equal to the distance between the second bottom surface and the opening, and;
[0007] A vacuum insulation panel, the vacuum insulation panel is pasted on and covers the first bottom surface and the second bottom surface.
[0008] In the above heat preservation device, the vacuum insulation panel is pasted on and covers the first bottom surface and the second bottom surface on the outer side of the inner container. The vacuum insulation panel can be a whole piece of vacuum insulation panel, so that the splicing seam formed by splicing two vacuum insulation panels can be eliminated, and the heat preservation effect can be improved to a certain extent. Moreover, a whole piece of vacuum insulation panel can also increase the area of the vacuum insulation panel, thereby reducing the effective thermal conductivity.
[0009] In some embodiments, the outer side surface includes a connecting surface located on one side of the inner container along a second direction. The connecting surface connects the first bottom surface and the second bottom surface. The vacuum insulation panel covers the connecting surface. The first direction is perpendicular to the second direction.
[0010] In the above-mentioned thermal insulation device, a whole piece of vacuum insulation panel can cover the first bottom surface, the second bottom surface and the connecting surface, avoiding the heat bridge effect caused by the splicing seam formed by splicing two vacuum insulation panels, which can reduce the energy loss to a certain extent and ensure the thermal insulation effect of the thermal insulation device.
[0011] In some embodiments, a receiving space is defined by the connecting surface and the second bottom surface or the first bottom surface.
[0012] In the above-mentioned thermal insulation device, components including but not limited to a freezer compressor can be placed in the receiving space, saving the internal space of the thermal insulation device to a certain extent.
[0013] In some embodiments, the outer side surface includes a first side surface located on the other side of the inner container along the second direction and a second side surface on one side along the second direction. The first side surface is connected to the first bottom surface, the second side surface is connected to the second bottom surface, and the vacuum insulation panel is attached to and covers the first side surface and the second side surface.
[0014] In the above-mentioned thermal insulation device, a whole piece of vacuum insulation panel can cover the first bottom surface, the second bottom surface, the first side surface, the second side surface and the connecting surface, eliminating the splicing seam generated by splicing two vacuum insulation panels, while increasing the usage area of the vacuum insulation panel and further reducing the effective thermal conductivity of the vacuum insulation panel.
[0015] In some embodiments, the thermal insulation device includes a winding duct and a foaming layer. The winding duct is arranged on the first side surface, the second side surface and the connecting surface, the foaming layer is arranged between the winding duct and the vacuum insulation panel, and the vacuum insulation panel is attached to the first side surface, the second side surface and the connecting surface through the foaming layer.
[0016] In the above-mentioned thermal insulation device, the foaming layer can prevent the generation of air pockets to a certain extent, which is beneficial to maintaining the temperature stability inside the inner container, and can also enhance the stability of the whole structure to a certain extent.
[0017] In some embodiments, the distance between the winding duct and the vacuum insulation panel is 20 mm to 30 mm.
[0018] In the above-mentioned thermal insulation device, the risk of high and low temperature cycle debonding of the vacuum insulation tube attached to the inner container can be reduced to a certain extent.
[0019] In some embodiments, the thermal insulation device includes a limiting block, and the limiting block can be arranged in at least one of the following ways:
[0020] The limiting block is arranged between the first side surface and the vacuum insulation panel;
[0021] The limiting block is disposed between the second side surface and the vacuum insulation panel;
[0022] The limiting block is disposed between the connection surface and the vacuum insulation panel.
[0023] In the above-mentioned heat preservation equipment, the limiting block can limit the distance between the vacuum insulation panel and the bypass duct, and at the same time facilitate the machine to inject a foaming agent into the gap between the vacuum insulation panel and the bypass duct to form a foaming layer.
[0024] In some embodiments, the vacuum insulation panel has a groove so that the vacuum insulation panel can be bent along the groove to form a shape adapted to the surface of the inner container to be covered.
[0025] In the above-mentioned heat preservation equipment, the vacuum insulation panel can better fit the outer area of the inner container to be covered, and to a certain extent prevent the vacuum insulation panel from falling off.
[0026] In some embodiments, the depth of the groove is 1 / 2 to 1 / 5 of the thickness of the vacuum insulation panel, and the width of the groove is 20 mm to 50 mm.
[0027] In the above-mentioned heat preservation equipment, the flexibility of bending the vacuum insulation panel can be improved, the damage suffered by the vacuum insulation panel during the bending process can be reduced, and the structural integrity of the vacuum insulation panel is protected to a certain extent.
[0028] In some embodiments, the shape of the groove includes a square, a V shape or a trapezoid.
[0029] In the above-mentioned heat preservation equipment, the groove structure is simple and easy to manufacture, and the cost can be reduced to a certain extent.
[0030] In some embodiments, the heat preservation equipment includes a heat reflection layer, and the heat reflection layer is disposed on the plate surface of the vacuum insulation panel facing the inner container side and / or the plate surface facing away from the inner container side.
[0031] In the above-mentioned heat preservation equipment, it is beneficial to further reduce the effective thermal conductivity, reduce the heat loss, and improve the heat preservation effect of the heat preservation equipment to a certain extent.
[0032] In the embodiments of the present utility model, additional aspects and advantages will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS
[0033] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:
[0034] Figure 1It is a three-dimensional structural schematic diagram of the inner container of the embodiment of the present utility model;
[0035] Figure 2 It is a structural schematic diagram of the heat preservation device of the embodiment of the present utility model;
[0036] Figure 3 It is another structural schematic diagram of the heat preservation device of the embodiment of the present utility model;
[0037] Figure 4 It is yet another structural schematic diagram of the heat preservation device of the embodiment of the present utility model;
[0038] Figure 5 It is still another structural schematic diagram of the heat preservation device of the embodiment of the present utility model;
[0039] Figure 6 It is a structural schematic diagram of the inner container of the embodiment of the present utility model;
[0040] Figure 7 It is another structural schematic diagram of the inner container of the embodiment of the present utility model;
[0041] Figure 8 It is a structural schematic diagram of the vacuum insulation panel when laid flat (before bending) of the embodiment of the present utility model;
[0042] Figure 9 It is another structural schematic diagram of the vacuum insulation panel when laid flat (before bending) of the embodiment of the present utility model;
[0043] Figure 10 It is a structural schematic diagram of the square groove of the embodiment of the present utility model;
[0044] Figure 11 It is a structural schematic diagram of the V-shaped groove of the embodiment of the present utility model;
[0045] Figure 12 It is a structural schematic diagram of the trapezoidal groove of the embodiment of the present utility model;
[0046] Figure 13 It is a partial structural schematic diagram of the embodiment of the present utility model.
[0047] Main element symbol description:
[0048] Accommodating cavity - 10, opening - 13, first bottom surface - 16, second bottom surface - 19, connecting surface - 22, first side surface - 25, second side surface - 28, outer side surface - 30, around bile duct - 31, foaming layer - 34, limiting block - 37, groove - 40, first plate surface - 42, second plate surface - 44, third plate surface - 46, fourth plate surface - 48, fifth plate surface - 50, sixth plate surface - 52, seventh plate surface - 54, eighth plate surface - 56, accommodating space - 60, vacuum insulation panel - 80, inner container - 100, outer shell - 150.
[0049] Thermal insulation device - 200. Specific implementation manner
[0050] The following details the implementation manners of the present utility model. Examples of the implementation manners are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The implementation manners described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.
[0051] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In the description of the present utility model, "a plurality of" means two or more unless otherwise specifically defined.
[0052] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0053] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include indirect contact between the first and second features through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is lower than that of the second feature.
[0054] The present disclosure provides many different embodiments or examples for implementing different structures of the present utility model. To simplify the disclosure of the present utility model, components and settings of specific examples are described herein. Of course, they are merely examples and are not intended to limit the present utility model. In addition, the present utility model may repeat reference numerals and / or reference letters in different examples. Such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between various embodiments and / or settings discussed. In addition, the present utility model provides examples of various specific processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.
[0055] Please refer to Figure 1 , a thermal insulation device 200 provided by the present utility model includes an inner container 100 and a vacuum insulation panel 80. The inner container 100 is provided with a receiving cavity 10 and an opening 13. The opening 13 is provided on one side of the inner container 100 along a first direction and communicates with the receiving cavity 10. The inner container 100 includes an outer side surface 30 facing away from the receiving cavity 10. The outer side surface 30 includes a first bottom surface 16 and a second bottom surface 19 on the other side along the first direction. The first bottom surface 16 is connected to the second bottom surface 19. The distance between the first bottom surface 16 and the opening 13 is not equal to the distance between the second bottom surface 19 and the opening 13; the vacuum insulation panel 80 is attached to and covers the first bottom surface 16 and the second bottom surface 19.
[0056] In the above thermal insulation device 200, the vacuum insulation panel 80 is attached to and covers the first bottom surface 16 and the second bottom surface 19 on the outside of the inner container 100. The vacuum insulation panel 80 can be an integral vacuum insulation panel 80, so as to eliminate the splicing seam formed by splicing two vacuum insulation panels 80, improve the thermal insulation effect to a certain extent, and the single vacuum insulation panel 80 can also increase the area of the vacuum insulation panel 80, thereby reducing the effective thermal conductivity.
[0057] Specifically, the thermal insulation device 200 is a device that can maintain a stable internal temperature, including but not limited to refrigerators, freezers, insulated boxes, refrigerated boxes, etc. Optionally, please combine Figure 2 and Figure 3, the thermal insulation device 200 can be a direct-cool horizontal freezer. The thermal insulation device 200 includes a power supply, a freezer compressor, a condenser, an expansion valve, an evaporation pipe, and an inner container 100. When the thermal insulation device 200 operates, the power supply provides voltage to the freezer compressor, causing the freezer compressor to compress the refrigerant gas to increase its temperature and pressure. Then, the compressed high-temperature and high-pressure refrigerant gas enters the condenser to release heat and becomes a high-pressure liquid. The high-pressure liquid then passes through the expansion valve to reduce its temperature and pressure and becomes a low-temperature and low-pressure gas-liquid mixture. The low-temperature and low-pressure gas-liquid mixture then enters the evaporation pipe disposed around the inner container 100 to further evaporate, absorbing the heat in the inner container 100, causing the temperature in the inner container 100 to decrease. The evaporated low-temperature and low-pressure refrigerant gas then returns to the compressor for circulation. Through this circulation process, the thermal insulation device 200 can continuously maintain the stability of the low-temperature environment in the accommodation chamber 10.
[0058] In Figure 1 , the first direction is the up-and-down direction, the second direction is the left-and-right direction, and the third direction is the up-and-down direction. In Figure 1 , Figure 6 and Figure 7 , for the convenience of understanding the structure and outer side of the inner container, the inner container 100 is shown inverted. The opening 13 of the inner container 100 is provided on one side of the inner container 100 along the first direction. In Figure 1 , it is the upper side of the inner container 100. The accommodation chamber 10 and the opening 13 communicate with each other, and objects that need to maintain a stable temperature can be placed in the accommodation chamber 10. The thermal insulation device 200 may include a door body, and the door body is rotatably or slidably connected to the inner cavity, so as to close and open the opening.
[0059] The inner container 100 includes an outer side 30 facing away from the accommodation chamber 10. The outer side 30 includes a first bottom surface 16 and a second bottom surface 19 provided on the other side along the first direction. The first bottom surface 16 is connected to the second bottom surface 19, and the distance between the first bottom surface 16 and the opening 13 is not equal to the distance between the second bottom surface 19 and the opening 13. Optionally, please refer to Figure 1 , the distance between the first bottom surface 16 and the opening 13 is greater than the distance between the second bottom surface 19 and the opening 13. In other embodiments, the distance between the second bottom surface 19 and the opening 13 may be greater than the distance between the first bottom surface 16 and the opening 13. The present utility model does not make specific limitations on this.
[0060] In the related art, the thermal insulation device includes a vacuum insulation panel. The vacuum insulation panel uses a vacuum layer to reduce the heat transfer through gas molecule convection and conduction, thereby reducing the energy loss of the thermal insulation device to a certain extent. Among them, in order to obtain lower energy loss, a large number of vacuum insulation panels are required for a freezer. The larger the use area of the vacuum insulation panel, the lower the effective thermal conductivity, and the better the thermal insulation effect. In a freezer with a high coverage rate of vacuum insulation panels, the vacuum insulation panels are usually installed on the outer shell. In order to improve the energy consumption level of the freezer, a vacuum insulation panel is separately wrapped on each inner surface of the freezer outer shell. Therefore, a splicing seam will be generated between two spliced vacuum insulation panels. Due to the thermal bridge effect, heat will preferentially transfer from the splicing seam, thereby reducing the thermal insulation effect. At the same time, the cost of a large number of vacuum insulation panels is relatively high.
[0061] In the embodiment of the present utility model, please refer to Figure 4 and Figure 5 , the first bottom surface 16 and the second bottom surface 19 are directly connected, and the vacuum insulation panel 80 is attached to and covers the first bottom surface 16 and the second bottom surface 19. In this way, the usage amount of the vacuum insulation panel 80 can be greatly reduced while ensuring the thermal insulation effect, and the cost can be reduced to a certain extent. The vacuum insulation panel 80 can be a whole vacuum insulation panel 80, so that the splicing seam formed by splicing two vacuum insulation panels 80 can be eliminated, the thermal insulation effect can be improved to a certain extent, and the area of the vacuum insulation panel 80 can also be increased by using a whole vacuum insulation panel 80, thereby reducing the effective thermal conductivity.
[0062] In the embodiment of the present utility model, please refer to Figure 6 , the outer side surface 30 includes a connecting surface 22 located on one side of the inner container 100 along the second direction. The first bottom surface 16 is connected to the second bottom surface 19 through the connecting surface 22, and the vacuum insulation panel 80 is attached to and covers the first bottom surface 16, the connecting surface 22 and the second bottom surface 19 on the outside of the inner container 100. In this way, the usage amount of the vacuum insulation panel 80 can be greatly reduced while ensuring the thermal insulation effect, and the cost can be reduced to a certain extent. The vacuum insulation panel 80 can be a whole vacuum insulation panel 80, so that the splicing seam formed by splicing two vacuum insulation panels 80 can be eliminated, the thermal insulation effect can be improved to a certain extent, and the area of the vacuum insulation panel 80 can also be increased by using a whole vacuum insulation panel 80, thereby reducing the effective thermal conductivity.
[0063] In some embodiments, the outer side surface 30 includes a connecting surface 22 located on one side of the inner container 100 along the second direction. The connecting surface 22 connects the first bottom surface 16 and the second bottom surface 19, and the vacuum insulation panel 80 covers the connecting surface 22. The first direction is perpendicular to the second direction.
[0064] In this way, a whole vacuum insulation panel 80 can cover the first bottom surface 16, the second bottom surface 19 and the connecting surface 22, avoiding the heat bridge effect caused by the splicing seam formed by splicing two vacuum insulation panels 80, which can reduce the energy loss to a certain extent and ensure the heat preservation effect of the heat preservation device 200. At the same time, the area of the vacuum insulation panel is large, reducing the effective thermal conductivity.
[0065] Specifically, in Figure 1 , the first direction is the up and down direction, the second direction is the left and right direction, and the first direction is perpendicular to the second direction. The connecting surface 22 is located on one side of the inner container 100 along the second direction ( Figure 1 the left side in
[0066] Optionally, please refer to Figure 1 , Figure 2 and Figure 6 . The lower edge of the connecting surface 22 is connected to the left edge of the first bottom surface 16, and the upper edge of the connecting surface 22 is connected to the right edge of the second bottom surface 19. Therefore, the first bottom surface 16, the connecting surface 22 and the second bottom surface 19 are sequentially connected to form a whole surface. Optionally, in Figure 1 , the first bottom surface 16 is substantially parallel to the second bottom surface 22, and the connecting surface 22 is substantially perpendicular to the first bottom surface 16 and the second bottom surface 19. Thus, the shape of the inner container 100 is relatively regular, which is convenient for transportation and storing items.
[0067] Optionally, please refer to Figure 6 and Figure 8 . The vacuum insulation panel 80 includes a first panel surface 42, a second panel surface 44 and a third panel surface 46, and each panel surface is covered with hot melt adhesive. The first panel surface 42 is attached to and covers the first bottom surface 16, the second panel surface 44 covers the connecting surface 22, and the third panel surface 46 is attached to and covers the second bottom surface 19. Therefore, a whole vacuum insulation panel 80 can cover the first bottom surface 16, the second bottom surface 19 and the connecting surface 22. The hot melt adhesive makes the two corresponding surfaces stick tightly, effectively eliminating the gap between the two surfaces, thereby avoiding the heat dissipation from the gap and ensuring the heat preservation effect of the heat preservation device 200 to a certain extent.
[0068] In some embodiments, the connecting surface 22 and the second bottom surface 19 or the first bottom surface 16 enclose a receiving space 60.
[0069] In this way, components such as but not limited to a freezer compressor can be placed in the receiving space 60, saving the internal space of the heat preservation device 200 to a certain extent.
[0070] Specifically, please refer to Figures 1 to 3, optionally, the lower edge of the connecting surface 22 is connected to the left edge of the first bottom surface 16, and the upper edge of the connecting surface 22 is connected to the right edge of the second bottom surface 19. The connecting surface 22 and the second bottom surface 19 or the first bottom surface 16 enclose a receiving space 60, and components such as a refrigerator compressor can be placed in the receiving space 60. The connecting surface 22 is relatively close to the refrigerator compressor.
[0071] In other embodiments, if the bottom surface closer to the opening is the first bottom surface 16 and the bottom surface farther from the opening is the second bottom surface 19, the connecting surface 22 and the first bottom surface 16 enclose a receiving space 60.
[0072] Please refer to Figure 4 and Figure 5 , the first bottom surface 16 is directly connected to the second bottom surface 19, and the second bottom surface 19 is arc-shaped. Thus, the second bottom surface 19 can also enclose a receiving space 60.
[0073] In some embodiments, the outer side surface 30 includes a first side surface 25 located on the other side of the inner container 100 along the second direction, and a second side surface 28 located on one side of the inner container 100 along the second direction. The first side surface 25 is connected to the first bottom surface 16, the second side surface 28 is connected to the second bottom surface 19, and the vacuum insulation panel 80 is attached to and covers the first side surface 25 and the second side surface 28.
[0074] In this way, a single-piece vacuum insulation panel 80 can cover the first bottom surface 16, the second bottom surface 19, the first side surface 25, the second side surface 28, and the connecting surface 22, eliminating the splicing seam generated by the splicing of two vacuum insulation panels 80, increasing the usage area of the vacuum insulation panel 80, and further reducing the effective thermal conductivity of the vacuum insulation panel 80.
[0075] Specifically, in Figure 1 , the first side surface 25 is located on the right side of the inner container 100, the second side surface 18 is located on the left side of the inner container 100, and the second side surface 28 and the connecting surface 22 are located on the same side (left side) of the inner container 100. The lower edge of the first side surface 25 is connected to the right edge of the first bottom surface 16; the second side surface 28 is located on the left side of the inner container 100, and the lower edge of the second side surface 28 is connected to the right edge of the second bottom surface 19; the lower edge of the connecting surface 22 is connected to the left edge of the first bottom surface 16, and the upper edge of the connecting surface 22 is connected to the right edge of the second bottom surface 19.
[0076] Therefore, the first side surface 25, the first bottom surface 16, the connecting surface 22, the second bottom surface 19, and the second side surface 28 are sequentially connected to form an entire surface. Optionally, please refer to Figure 3 , Figure 7 and Figure 9, the vacuum insulation panel 80 includes a fourth panel surface 48, a fifth panel surface 50, a sixth panel surface 52, a seventh panel surface 54, and an eighth panel surface 56, and each panel surface is covered with hot melt adhesive. The fourth panel surface 48 covers the first side surface 25, the fifth panel surface 50 adheres to and covers the first bottom surface 16, the sixth panel surface 52 covers the connection surface 22, the seventh panel surface 54 adheres to and covers the second bottom surface 19, and the eighth panel surface 56 covers the second side surface 28, so that a whole vacuum insulation panel 80 can cover the first bottom surface 16, the second bottom surface 19, the first side surface 25, the second side surface 28, and the connection surface 22. The hot melt adhesive makes the two corresponding surfaces adhere tightly, eliminating the gap between the two surfaces, avoiding the energy loss caused by the thermal bridge effect to a certain extent, increasing the usage area of the vacuum insulation panel 80 at the same time, further reducing the effective thermal conductivity of the vacuum insulation panel 80, and ensuring the heat preservation effect of the heat preservation device 200.
[0077] Optionally, in Figure 1 , the first bottom surface 16 and the second bottom surface 19 are substantially parallel, the connection surface 22 is substantially perpendicular to the first bottom surface 16 and the second bottom surface 19, the first side surface 16 is substantially perpendicular to the first bottom surface 19, and the second side surface 28 is substantially perpendicular to the second bottom surface 19. Thus, the shape of the inner container 100 is relatively regular, which is convenient for transporting and storing items.
[0078] In some embodiments, the heat preservation device 200 includes a bypass duct 31 and a foaming layer 34. The bypass duct 31 is disposed on the first side surface 25, the second side surface 28, and the connection surface 22, and the foaming layer 34 is disposed between the bypass duct 31 and the vacuum insulation panel 80. The vacuum insulation panel 80 is attached to the first side surface 25, the second side surface 28, and the connection surface 22 through the foaming layer 34.
[0079] In this way, the foaming layer 34 can prevent the generation of air pockets to a certain extent, which is beneficial to maintaining the temperature stability inside the inner container 100, and can also enhance the stability of the whole structure to a certain extent.
[0080] Specifically, please refer to Figures 1 to 7 , the bypass duct 31 can be an evaporation pipe, and the evaporation pipe is disposed on all the outer side surfaces 30 except the first bottom surface 16 and the second bottom surface 19. The outer side surfaces 30 include a front side surface and a rear side surface, and the front side surface and the rear side surface are respectively the front edges and the rear edges of the first side surface 25, the first bottom surface 16, the connection surface 22, the second bottom surface 19, and the second side surface 28.
[0081] Among them, the bile duct winding 31 is arranged on the first side surface 25, the second side surface 28, the connecting surface 22, the front side surface and the rear side surface. The foaming layer 34 is arranged between the bile duct winding 31 and the vacuum insulation panel 80. The vacuum insulation panel 80 is attached to the first side surface 25, the second side surface 28 and the connecting surface 22 through the foaming layer 34. The foaming material in the foaming layer 34 fills the gaps between the vacuum insulation panel 80 and the bile duct winding 31, and between the vacuum insulation panel 80 and the connecting surface 22( Figure 2 and Figure 6 ), or the gaps between the vacuum insulation panel 80 and the first side surface 25, the second side surface 28, the connecting surface 22( Figure 3 and Figure 7 ). To a certain extent, it can prevent the generation of drumhollows, effectively block heat loss, and is conducive to maintaining the temperature stability inside the inner container 100. At the same time, the cured foaming layer 34 can enhance the stability of the entire structure to a certain extent and reduce the displacement of the vacuum insulation panel 80 caused by vibration or movement.
[0082] Please refer to Figure 2 and Figure 3 . The thermal insulation device 200 further includes a housing 150. The vacuum insulation panel 80 is arranged between the inner container 100 and the housing 150. A foaming layer 34 is arranged between the vacuum insulation panel 80 and the housing 150, and a foaming layer is arranged between the housing 150 and the inner container 100, which can further improve the thermal insulation effect of the thermal insulation device 200.
[0083] In some embodiments, the distance between the bile duct winding 31 and the vacuum insulation panel 80 is 20 mm (millimeters) to 30 mm.
[0084] In this way, the risk of delamination due to high and low temperature cycling of the vacuum insulation tube 80 attached to the inner container 100 can be reduced to a certain extent.
[0085] Specifically, the vacuum insulation panel 80 is attached to the outer side surface 30 of the inner container 100 provided with the bile duct winding 31. Because during the operation of the thermal insulation device 200, the outer side surface of the inner container 100 undergoes a process of high and low temperature cycling, the vacuum insulation panel 80 and the inner container 100 will expand or contract accordingly according to the coefficient of thermal expansion. There may be corresponding displacements between the two, resulting in changes in the bonding stress and affecting the bonding effect. At the same time, the performance of the hot melt adhesive bonding the vacuum insulation panel 80 and the inner container 100 may not be able to maintain sufficient bonding strength, resulting in delamination of the vacuum insulation panel 80. The distance between the bile duct winding 31 and the vacuum insulation panel 80 is 20 mm to 30 mm, which can reduce the thermal stress between the vacuum insulation panel 80 and the inner container 100. At the same time, the hot melt adhesive can maintain sufficient bonding strength, and to a certain extent, reduce the risk of delamination due to high and low temperature cycling of the vacuum insulation tube 80 attached to the inner container 100.
[0086] The distance between the bypass duct 31 and the vacuum insulation panel 80 is D, and the distance between the bypass duct 31 and the vacuum insulation panel 80 is from 20 mm to 30 mm, that is, 20 mm ≤ D ≤ 30 mm. In some examples, D = 20 mm, 22 mm, 24 mm, 26 mm, 28 mm, 30 mm, or other values greater than or equal to 20 mm and less than or equal to 30 mm.
[0087] In certain embodiments, the thermal insulation device includes a limiting block 37, and the limiting block 37 can be arranged in at least one of the following ways:
[0088] The limiting block 37 is arranged between the first side surface 25 and the vacuum insulation panel 80;
[0089] The limiting block 37 is arranged between the second side surface 28 and the vacuum insulation panel 80;
[0090] The limiting block 37 is arranged between the connecting surface 22 and the vacuum insulation panel 80.
[0091] In this way, the limiting block 37 can limit the distance between the vacuum insulation panel 80 and the bypass duct 31, and at the same time facilitate the machine to inject a foaming agent into the gap between the vacuum insulation panel 80 and the bypass duct 31 to form a foaming layer 34.
[0092] Specifically, please refer to Figure 6 the shown embodiment, the limiting block 37 is arranged between the connecting surface 22 and the vacuum insulation panel 80. Please refer to Figure 7 the shown embodiment, the limiting block 37 is arranged between the first side surface 25 and the vacuum insulation panel 80, between the second side surface 28 and the vacuum insulation panel 80, and between the connecting surface 22 and the vacuum insulation panel 80.
[0093] It can be understood that in other embodiments, the limiting block 37 can be arranged in any one or two of the following ways: the limiting block 37 is arranged between the first side surface 25 and the vacuum insulation panel 80; the limiting block 37 is arranged between the second side surface 28 and the vacuum insulation panel 80; the limiting block 37 is arranged between the connecting surface 22 and the vacuum insulation panel 80.
[0094] Please refer to Figure 6 , the second direction is the left - right direction. The limiting block 37 is arranged at positions close to the upper edge and the lower edge of the connecting surface 22, and is located between two adjacent bypass ducts 31. One side of the limiting block 37 in the second direction is connected to the vacuum insulation panel 80, and the other side in the second direction is connected to the side surface provided with the bypass duct 31.
[0095] Please refer to Figure 7, the second direction is the left - right direction. The limiting block 37 is arranged at positions near the upper and lower edges of the first side surface 25, the second side surface 28 and the connecting surface 22, and is located between two adjacent winding bile ducts 31. One side of the limiting block 37 in the second direction is connected to the vacuum insulation panel 80, and the other side in the second direction is connected to the side surface provided with the winding bile duct 31.
[0096] Optionally, since the winding bile duct 31 protrudes from the outer side surface 30 of the inner tank 100, the width of the limiting block 37 in the second direction is slightly larger than the distance between the vacuum insulation panel 80 and the winding bile duct 31. The width of the limiting block 37 in the second direction can limit the distance between the vacuum insulation panel 80 and the winding bile duct 31 to be 20 mm to 30 mm. At the same time, it is convenient for the machine to inject the foaming agent into the gap formed between the vacuum insulation panel 80 and the winding bile duct 31. After the foaming agent is heated and expanded and then cured to form the foaming layer 34, it can prevent the occurrence of hollowing to a certain extent, effectively block heat loss, is conducive to maintaining the temperature stability inside the inner tank 100, and can also enhance the stability of the entire structure to a certain extent and reduce the risk of high - low temperature cycle debonding of the vacuum insulation tube 80. The number of the limiting blocks 37 can be specifically limited according to actual needs, and the present utility model does not make specific limitations on this.
[0097] The present utility model does not make specific limitations on the material of the limiting block 37. In one example, the material of the limiting block 37 can be a resin material or a cured foaming material.
[0098] In some embodiments, the vacuum insulation panel 80 has a groove 40 so that the vacuum insulation panel 80 can be bent along the groove 40 to form a shape adapted to the surface of the inner tank 100 to be covered.
[0099] In this way, the vacuum insulation panel 80 can better fit the area of the inner tank 100 to be covered, and prevent the vacuum insulation panel 80 from falling off to a certain extent.
[0100] Specifically, please refer to Figure 8 and Figure 9 , the vacuum insulation panel 80 is in a flat state (before bending). A layer of aluminized film is coated on one side surface of the vacuum insulation panel 80 that is to fit the inner tank 100. The groove 40 is arranged on the side coated with the aluminized film. The vacuum insulation panel 80 is bent along the groove in the direction towards the aluminized film to form a shape adapted to the surface of the inner tank to be covered, which can make the vacuum insulation panel 80 better fit the outer area of the inner tank 100 to be covered and prevent the vacuum insulation panel 80 from falling off to a certain extent. The present utility model does not make specific limitations on the manufacturing process of the groove 40. In one example, the groove 40 can be integrally manufactured by a stamping process or manufactured by a thermoforming process.
[0101] In some embodiments, the depth of the groove 40 is 1 / 2 to 1 / 5 of the thickness of the vacuum insulation panel 80, and the width of the groove 40 is 20 mm to 50 mm.
[0102] In this way, the flexibility of bending the vacuum insulation panel 80 can be improved, the damage suffered by the vacuum insulation panel 80 during the bending process can be reduced, and the structural integrity of the vacuum insulation panel 80 is protected to a certain extent.
[0103] Specifically, the groove 40 reduces the thickness of the vacuum insulation panel 80 in the area of the groove 40, thereby reducing the rigidity of the material and improving the flexibility of bending the vacuum insulation panel 80. The specific size of the depth of the groove 40 can be specifically defined according to actual needs, and the present utility model does not make specific limitations thereto.
[0104] The depth of the groove is H, and the depth of the groove is 1 / 2 to 1 / 5 of the thickness of the vacuum insulation panel, that is, 20 mm ≤ H ≤ 30 mm. In some examples, H = 20 mm, 22 mm, 24 mm, 26 mm, 28 mm, 30 mm, or other values greater than or equal to 20 mm and less than or equal to 30 mm.
[0105] The width of the groove 40 is W, and the width of the groove is 20 mm to 50 mm, that is, 20 mm ≤ W ≤ 50 mm. In some examples, W = 20 mm, 25 mm, 30 mm, 35 mm, 40 mm, 45 mm, 50 mm, or other values greater than or equal to 20 mm and less than or equal to 50 mm. Setting an appropriate width of the groove 40 can avoid overly weakening the material strength, reduce the damage suffered by the vacuum insulation panel 80 during the bending process, and protect the structural integrity of the vacuum insulation panel 80 to a certain extent.
[0106] In some embodiments, the shape of the groove 40 includes a square, a V shape, or a trapezoid.
[0107] In this way, the structure of the groove 40 is simple and easy to manufacture, and the cost can be reduced to a certain extent.
[0108] Specifically, please refer to Figure 10 , in one embodiment, the shape of the groove 40 is square. The length and width of the square can be specifically defined according to specific actual needs, and the present utility model does not make specific limitations thereto.
[0109] Please refer to Figure 11 , in one embodiment, the shape of the groove 40 is V-shaped. The size of the apex angle A of the V shape can be specifically determined according to specific actual needs, and the present utility model does not make specific limitations thereto.
[0110] Please refer to Figure 12, in one embodiment, the shape of the groove 40 is an isosceles trapezoid. The size of the base angle B of the isosceles trapezoid can be specifically defined according to specific actual needs, and the present utility model does not make specific limitations thereto. In addition to the isosceles trapezoid, the shape of the groove 40 can also be other trapezoids.
[0111] In Figures 10 to 12 the shown embodiment, the central axis L of the groove 40 is the central axis of the groove 40 in the up and down direction, and the groove 40 is symmetric about the central axis L. This design has a simple structure, is convenient for bending the vacuum insulation panel 80, and is also easy to manufacture, which can reduce costs to a certain extent.
[0112] In some embodiments, the heat preservation device 200 includes a heat reflection layer 62, and the heat reflection layer 62 is provided on the plate surface of the vacuum insulation panel 80 facing the inner container 100 and / or the plate surface facing away from the inner container 100.
[0113] In this way, it is beneficial to further reduce the effective thermal conductivity and reduce the heat loss, and to improve the heat preservation effect of the heat preservation device 200 to a certain extent.
[0114] Specifically, please refer to Figure 13 , heat reflection layers 62 are respectively pasted on both sides of the vacuum insulation panel 80. The heat reflection layer 62 on the side of the vacuum insulation panel 80 facing the inner container 100 is an aluminized film, which is beneficial to further reduce the effective thermal conductivity and reduce the heat loss. Optionally, in the embodiment of the present utility model, the heat reflection layer 62 on the side of the vacuum insulation panel 80 facing away from the inner container 100 can be an aluminum foil film. In other embodiments, both the heat reflection layer 62 on the side of the vacuum insulation panel 80 facing the inner container 100 and the heat reflection layer 62 on the side facing away from the inner container 100 can be aluminized films.
[0115] , in the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.
[0116] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present utility model.
Claims
1. A heat preservation device, characterized in that: include: An inner liner, wherein the inner liner is provided with a containing cavity and an opening, wherein the opening is provided at one side of the inner liner along a first direction and connected to the containing cavity, wherein the inner liner includes an outer side facing away from the containing cavity, wherein the outer side includes a first bottom surface and a second bottom surface provided at the other side along the first direction, wherein the first bottom surface is connected to the second bottom surface, and a distance between the first bottom surface and the opening is not equal to a distance between the second bottom surface and the opening, and; A vacuum insulation panel is attached to and covers the first bottom surface and the second bottom surface.
2. The heat preservation device according to claim 1, characterized in that: The outer side surface includes a connecting surface located on one side of the inner container along the second direction, the connecting surface connects the first bottom surface and the second bottom surface, the vacuum insulation panel covers the connecting surface, and the first direction and the second direction are perpendicular to each other.
3. The heat preservation device according to claim 2, characterized in that: The connecting surface and the second bottom surface or the first bottom surface form an accommodating space.
4. The heat preservation device according to claim 2, characterized in that: The outer side surface includes a first side surface located on the other side of the inner container along the second direction, and a second side surface along one side of the second direction, the first side surface is connected to the first bottom surface, the second side surface is connected to the second bottom surface, and the vacuum insulation panel adheres to and covers the first side surface and the second side surface.
5. The heat preservation device according to claim 4, characterized in that: The thermal insulation device includes a bile duct and a foaming layer, the bile duct is arranged on the first side surface, the second side surface and the connecting surface, the foaming layer is arranged between the bile duct and the vacuum insulation panel, and the vacuum insulation panel is bonded to the first side surface, the second side surface and the connecting surface through the foaming layer.
6. The heat preservation device according to claim 5, characterized in that: The distance between the bile duct and the vacuum insulation panel is 20 mm to 30 mm.
7. The heat preservation device according to claim 4, characterized in that: The heat preservation device includes a limiting block, and the limiting block is arranged in at least one of the following ways: The limiting block is arranged between the first side surface and the vacuum insulation panel; The limiting block is arranged between the second side surface and the vacuum insulation panel; The limiting block is arranged between the connecting surface and the vacuum insulation panel.
8. The heat preservation device according to claim 1, characterized in that: The vacuum insulation panel has a groove so that the vacuum insulation panel can be bent along the groove to form a shape that matches the covered surface of the inner container.
9. The heat preservation device according to claim 8, characterized in that: The depth of the groove is 1 / 2 to 1 / 5 of the thickness of the vacuum insulation panel, and the width of the groove is 20 mm to 50 mm.
10. The heat preservation device according to claim 8, characterized in that: The shape of the groove includes square, V-shaped or trapezoidal.
11. The heat preservation device according to claim 1, characterized in that: The heat-insulating device comprises a heat-reflecting layer, and the heat-reflecting layer is arranged on a board surface of the vacuum insulation panel facing the inner liner and / or a board surface facing away from the inner liner.