Passive frame-plate composite temperature control box

Abstract

The utility model relates to the technical field of heat preservation, concretely to a passive frame - panel type composite temperature control box, include: frame, door board, heat preservation composite board and ice row, the frame is composed of aluminium square tube, is fixedly connected through the support angle spare between adjacent aluminium square tube, the frame is divided into outer frame and inner frame, the door board is rotatably installed on the outer frame, and the heat preservation composite board is fixedly installed on the outer frame, the inner frame is located in the outer frame, and the inner frame is fixedly connected with the heat preservation composite board, the heat preservation cavity is formed between the inner frame and heat preservation composite board, and there is the ice row in the linear array of heat preservation cavity, the utility model discloses through frame - panel type composite structure has improved the convenience of installation, has reduced the heat preservation layer thickness, has increased the internal space, and through heat preservation composite board has improved the heat preservation quality, has improved the temperature control effect.

Description

Technical Field

[0001] This utility model relates to the field of thermal insulation technology, specifically a passive frame-plate composite temperature control box. Background Technology

[0002] Currently, the temperature control methods used in cold chain transportation are mainly divided into two types: active and passive temperature control. Active temperature control equipment usually requires dedicated temperature control components, such as refrigeration units, which continuously refrigerate to ensure the stability of the internal cargo temperature. Passive temperature control is based on the material properties of insulation materials and ensures that the internal cargo temperature remains stable over a longer insulation period by building effective temperature control containers.

[0003] Large passive cold chain temperature-controlled boxes typically consist of an external box structure, an internal insulation material layer, and a temperature control medium layer. The external box structure ensures the overall strength of the temperature control box and provides physical protection. The internal insulation material layer is mainly made of foamed material or high-performance insulation material, which reduces heat exchange between the inside and outside of the box due to its low thermal conductivity. The temperature control medium layer is mainly made of dry ice or phase change material, which absorbs or releases a large amount of heat when it undergoes a phase change at a specific temperature to maintain a stable internal temperature. It is usually encapsulated in a container of a specific shape and fixed tightly against the internal insulation material layer of the box.

[0004] However, using a structure composed of multiple insulated composite panels to build a temperature control box often makes it difficult to achieve the function of retrieving goods with a side-opening door or efficiently loading and unloading palletized goods with a forklift. At the same time, it is difficult to place a temperature control medium at the door, resulting in the temperature at the door being lower than the internal temperature of the temperature control box, which in turn leads to uneven temperature control.

[0005] In view of this, we propose a passive frame-panel composite temperature control box. Utility Model Content

[0006] The purpose of this invention is to provide a passive frame-plate composite temperature control box to solve the problem of uneven temperature control at the door opening of the temperature control box mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A passive frame-panel composite temperature control box includes: a frame, a door panel, an insulation composite panel, and an ice pack; the frame is composed of aluminum square tubes, with adjacent aluminum square tubes fixedly connected by supporting corner brackets; by fixing multiple aluminum square tubes with supporting corner brackets, the main frame of the temperature control box is constructed; the frame is divided into an outer frame and an inner frame; a door panel is rotatably mounted on the outer frame, and an insulation composite panel is fixedly mounted on the outer frame; by installing the insulation composite panel and the door panel on the outer frame, a sealed space is constructed, thus forming the outer structure of the frame-panel composite temperature control box; the temperature control box is opened and closed by the rotatably mounted door panel, and the insulation composite panel on the outer frame effectively isolates temperature transmission, thereby isolating the internal components of the outer frame. The space serves as insulation. The inner frame is located inside the outer frame and is fixedly connected to the insulation composite panel. The inner frame and the insulation composite panel form an insulation cavity, in which ice packs are linearly arrayed. The inner frame is fixedly installed inside the outer frame for placing goods. The inner and outer frames form a double-layer frame structure, which ensures the strength of the temperature control box, thereby enabling the placement of bulk goods. At the same time, it provides strong protection against external impacts, ensuring the safety of the goods. Ice packs are fixedly installed inside the insulation cavity formed by the inner frame and the insulation composite panel. The temperature control cavity uses ice packs to lower the internal temperature of the temperature control box, creating a low-temperature environment for cold chain transportation. Meanwhile, the insulation composite panel maintains the low-temperature environment inside the temperature control cavity.

[0008] Preferably, the outer frame is provided with a door panel fixing seat, and the lower end of the outer frame is provided with a support rib; the door panel is provided with a corresponding rotating support, and the outer frame and the door panel are rotatably connected to each other through the cooperation of the door panel fixing seat and the rotating support. The support rib at the lower end of the outer frame is used to improve the support capacity of the temperature control box, thereby increasing the load capacity of the temperature control box.

[0009] Preferably, the door panel is composed of a door frame, a door panel composite board, and a sealing strip. Rotating supports are fixedly installed at both the upper and lower ends of the door frame, ensuring uniform force distribution during door opening and closing, thereby improving the smoothness of door panel engagement. A door panel composite board is fixedly installed inside the door frame. The door panel composite board is composed of an outer door panel, a foam plastic board, a vacuum insulation board, and an inner door panel, all fixedly connected together. The foam plastic board acts as a buffer and vibration damper, mitigating external impacts on the temperature control box. The vacuum insulation board isolates the transfer of internal and external temperatures, preventing temperature transfer from the door panel and ensuring a lower temperature at the door panel, thus affecting the uniformity of the internal temperature of the temperature control box. One end of the sealing strip is connected to the door frame, and the other end is connected to the inner door panel. The sealing strip ensures the airtightness of the temperature control box, preventing poor sealing that could lead to a decrease in the internal temperature of the temperature control box and affect the insulation effect.

[0010] Preferably, the inner frame consists of a main frame, an ice pack door, and a support frame. An ice pack door is rotatably mounted on the end face of the main frame. The ice pack door is used to fix ice packs and has a double-opening structure. When arriving at the delivery location, one side of the ice pack door can be opened for loading and unloading goods, reducing internal temperature loss. Simultaneously, the ice packs at the ice pack door cooperate with the ice packs inside the insulation cavity, ensuring that ice packs exist on all end faces of the temperature control box, forming a complete ice pack space. This avoids the problem of traditional temperature control boxes where ice packs cannot be installed on the door panel, resulting in lower temperatures at the door panel and uneven internal temperature control. Support frames are fixedly mounted on the remaining end faces of the main frame. The support frames are fixedly connected to the insulation composite panel. The main frame, insulation composite panel, and support frames together form an insulation cavity. Ice packs are fixedly mounted on the support frames, which are used to install and place ice packs, forming a closed ice pack space with the ice pack door.

[0011] Preferably, the thermal insulation composite panel is composed of an outer structural panel, a vacuum insulation panel, and an inner structural panel; a vacuum insulation panel is fixedly installed between the outer structural panel and the inner structural panel; the outer structural panel is attached to the surface of the outer frame; the inner structural panel is connected to the surface of the inner frame, and the thermal insulation composite panel achieves a thermal insulation effect through the vacuum insulation panel, isolating the transfer of internal and external temperatures and ensuring the stability of the internal temperature of the temperature control box.

[0012] Preferably, the ice pack consists of an ice pack box and a phase change material; the phase change material is encapsulated inside the ice pack box, and the ice pack is formed by sealing the phase change material inside itself.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model discloses a passive frame-panel composite temperature control box, which significantly improves the box's thermal insulation performance by using vacuum insulation panels, reduces the thickness of the insulation layer, effectively expands the internal loading space of the box, and reduces the overall weight. The insulation panels are seamlessly assembled without connectors, effectively avoiding thermal bridging at the joints and further improving the overall thermal insulation performance of the box.

[0014] 2. This utility model discloses a passive frame-panel composite temperature control box. The frame-panel composite structure is formed by prefabricating inner and outer frames and embedding insulation composite panels. This makes the assembly of the temperature control box simple and efficient. At the same time, the embedded insulation composite panels can effectively avoid the vacuum failure of the vacuum insulation panel caused by physical damage, which would affect the temperature control capability. In addition, the double-door design of the door panel and the ice pack door of the inner frame facilitates the entry and exit of goods and the disassembly and assembly of ice packs on one side. The universal design of fixing ice packs on each side of the inner frame reduces the difficulty of operation and enables the quick disassembly and replacement of ice packs.

[0015] 3. The present invention provides a passive frame-panel composite temperature control box. The inner and outer frames are constructed using standard components to provide structural support. The embedded insulation composite panel provides the insulation capacity of a traditional sandwich structure. The functional allocation is clear, avoiding the complexity of composite panel strength design. The frame-panel universal structural design system can flexibly change and adjust the box size, greatly simplifying the development time and cost of new box sizes. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall temperature control box of this utility model; Figure 2 This is a schematic diagram of the temperature control box of this utility model without ice packs; Figure 3 A schematic diagram of the temperature control box of this utility model equipped with ice packs; Figure 4 This utility model Figure 3 A magnified view of point A; Figure 5 This is a schematic diagram of the outer frame of this utility model; Figure 6 This is a schematic diagram of the inner frame of this utility model; Figure 7 This is a partial sectional view of the door panel of this utility model; Figure 8 This utility model Figure 7 A magnified view of point B; Figure 9 This is a horizontal sectional view of the door panel of this utility model; Figure 10 This is a cross-sectional view of the thermal insulation composite panel of this utility model; Figure 11 This is a partial cross-sectional view of the ice pack of this utility model; Figure 12 This utility model Figure 11 A magnified view of point C.

[0017] In the picture: 1. Frame; 11. Aluminum square tube; 12. Supporting corner piece; 13. Outer frame; 131. Door panel fixing seat; 132. Supporting rib; 14. Inner frame; 141. Main frame; 142. Ice door; 143. Support bracket; 144. Insulation cavity; 2. Door panel; 21. Door frame; 211. Rotating support; 22. Door panel composite panel; 221. Outer door panel; 222. Foam plastic board; 223. Vacuum insulation board; 224. Inner door panel; 23. Sealing strip; 3. Thermal insulation composite panel; 31. External structural panel; 32. Vacuum insulation panel; 33. Internal structural panel; 4. Ice packs; 41. Ice pack boxes; 42. Phase change materials. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Large passive cold chain temperature-controlled boxes typically consist of an external box structure, an internal insulation material layer, and a temperature control medium layer. The external box structure ensures the overall strength of the temperature control box and provides physical protection. The internal insulation material layer is mainly made of foamed material or high-performance insulation material, which reduces heat exchange between the inside and outside of the box due to its low thermal conductivity. The temperature control medium layer is mainly made of dry ice or phase change material, which absorbs or releases a large amount of heat when it undergoes a phase change at a specific temperature to maintain a stable internal temperature. It is usually encapsulated in a container of a specific shape and fixed tightly against the internal insulation material layer of the box.

[0020] However, using a structure composed of multiple insulated composite panels to build a temperature control box often makes it difficult to achieve the function of retrieving goods with a side-opening door or efficiently loading and unloading palletized goods with a forklift. At the same time, it is difficult to place a temperature control medium at the door, resulting in the temperature at the door being lower than the internal temperature of the temperature control box, which in turn leads to uneven temperature control.

[0021] like Figures 1 to 12 As shown, a passive frame-panel composite temperature control box includes: a frame 1, a door panel 2, an insulation composite panel 3, and ice packs 4; the frame 1 is composed of aluminum square tubes 11, and adjacent aluminum square tubes 11 are fixedly connected by supporting corner pieces 12; the frame 1 is divided into an outer frame 13 and an inner frame 14; the door panel 2 is rotatably mounted on the outer frame 13, and the insulation composite panel 3 is fixedly mounted on the outer frame 13; the inner frame 14 is located inside the outer frame 13, and the inner frame 14 is fixedly connected to the insulation composite panel 3; the inner frame 14 and the insulation composite panel 3 form an insulation cavity 144, and ice packs 4 are linearly arrayed in the insulation cavity 144. Specifically, frame 1 is composed of aluminum square tubes 11, with adjacent aluminum square tubes 11 fixedly connected by supporting corner brackets 12. By fixing multiple aluminum square tubes 11 with supporting corner brackets 12, the main frame 1 of the temperature control box is constructed. Frame 1 is divided into an outer frame 13 and an inner frame 14. A door panel 2 is rotatably installed on the outer frame 13, and an insulation composite panel 3 is fixedly installed on the outer frame 13. By installing the insulation composite panel 3 and the door panel 2 on the outer frame 13, a sealed space is constructed, thus forming the outer structure of the frame-panel composite temperature control box. The temperature control box is opened and closed by the rotatably installed door panel 2. The insulation composite panel 3 on the outer frame 13 isolates temperature transmission, thereby providing insulation for the space inside the outer frame 13. The inner frame 14 is located on the outer frame. The inner frame 14 is fixedly connected to the insulation composite board 3 within the outer frame 13. The inner frame 14 and the insulation composite board 3 form an insulation cavity 144, in which ice bars 4 are linearly arrayed. The inner frame 14 is fixedly installed within the outer frame 13 for placing goods. The inner frame 14 and the outer frame 13 form a double-layer frame structure, which ensures the strength of the temperature control box, thereby enabling the placement of bulk goods. At the same time, it has a strong protective effect against external impacts, ensuring the safety of the goods. Ice bars 4 are fixedly installed within the insulation cavity 144 formed by the inner frame 14 and the insulation composite board 3. The temperature control cavity uses ice bars 4 to reduce the internal temperature of the temperature control box, creating a low-temperature environment for cold chain transportation. Meanwhile, the low-temperature environment inside the temperature control cavity is maintained by the insulation composite board 3.

[0022] Preferably, the frame-panel composite structure system consisting of the outer frame 13, the inner frame 14 and the thermal insulation composite panel 3, with the composite vacuum insulation panel pre-embedded in the inner and outer frames 13, not only achieves the construction of a structurally reliable thermal insulation container body, but also avoids the material characteristics of the vacuum insulation panel 32 which is difficult to mechanically fix, achieves thermal bridge-free splicing, effectively reduces heat loss inside the box, reduces the thickness and weight of the insulation layer, and expands the actual usable space of the temperature control box; While meeting the basic support structure design, the inner frame 14 is linked to the ice pack 4 fixing structure design, which can realize the convenient assembly and disassembly of the ice pack 4, and achieve full coverage of the ice pack 4 on all sides of the box, ensuring the heat preservation capacity and internal temperature uniformity, and improving the convenience and safety of operation. At the same time, the dimensions of the frame structure components can be directly adjusted according to the loading requirements of any volume, so as to build a universal structural system platform with a single design to adapt to complex and ever-changing loading requirements.

[0023] In this embodiment, the outer frame 13 is provided with a door panel fixing seat 131, and the lower end of the outer frame 13 is provided with a supporting rib 132; the door panel 2 is provided with a corresponding rotating support 211. Specifically, the outer frame 13 and the door panel 2 are rotatably connected to each other through the cooperation of the door panel fixing seat 131 and the rotating support 211. The support rib 132 at the lower end of the outer frame 13 is used to improve the support capacity of the temperature control box, thereby increasing the load capacity of the temperature control box.

[0024] Preferably, the support ribs 132 form a three-dimensional pallet structure, which facilitates direct handling by forklifts. The internal net dimensions of the support ribs 132 in both the length and width directions can meet the requirements of a single standard Metok or Ottok to enter or exit the temperature control box in either the length or width direction.

[0025] In this embodiment, the door panel 2 is composed of a door frame 21, a door panel composite panel 22, and a sealing strip 23; the door frame 21 is fixedly installed with rotating supports 211 at both ends, and the door panel composite panel 22 is fixedly installed inside the door frame 21; the door panel composite panel 22 is composed of an outer door panel 221, a foam plastic board 222, a vacuum insulation board 223, and an inner door panel 224 that are fixedly connected to each other; one end of the sealing strip 23 is connected to the door frame 21, and the other end of the sealing strip 23 is connected to the inner door panel 224; Specifically, rotating supports 211 are fixedly installed at both the upper and lower ends of the door frame 21. These supports ensure the uniformity of force distribution during the opening and closing of the door panel 2, thereby improving the smoothness of the door panel 2's opening and closing. A door panel composite panel 22 is fixedly installed inside the door frame 21. The door panel composite panel 22 is composed of an outer door panel 221, a foam plastic board 222, a vacuum insulation board 223, and an inner door panel 224, all fixedly connected together. The foam plastic board 222 acts as a buffer and vibration damper, thus mitigating external impacts on the temperature control box. The vacuum insulation board 223 is used to isolate the transfer of internal and external temperatures, preventing overheating. The temperature is transmitted from door panel 2, resulting in a lower temperature at door panel 2, which affects the uniformity of the internal temperature of the temperature control box. The outer door panel 221 is equipped with door panel functional components, which facilitate the pulling and closing of the entire door panel 2. At the same time, the outer door panel 221 is also equipped with a door lock, which is used to lock the door panel 21 with the outer frame 13, thereby realizing the closure of the temperature control box. One end of the sealing strip 23 is connected to the door frame 21, and the other end of the sealing strip 23 is connected to the inner door panel 224. The sealing strip 23 ensures the airtightness of the temperature control box and avoids poor sealing, which would cause the internal temperature of the temperature control box to drop and affect the heat preservation effect.

[0026] Preferably, the material of the door frame 21 includes, but is not limited to, plastics, such as polyethylene, polypropylene, polystyrene, ABS, fiberglass, metal, and wood. This application uses aluminum alloy square tubes or profiles, which are cost-effective, have structural strength and weight control, and the cross-section is preferably 30*30mm. Foam board 222 is a medium-insulation high-density foam board, such as polyurethane foam, polystyrene foam, polypropylene foam, etc., with a preferred thickness of 10-30mm. A protective film (not shown) is pre-attached to the surface of the vacuum insulation panel 223 to protect it from mechanical damage that could break the vacuum during the bonding process; The sealing strip 23 can be any elastic material with a certain degree of compressibility and resilience, such as rubber or PVC. This application uses silicone rubber, which ensures cost-effectiveness while being suitable for various temperature control scenarios. The outer door panel 221 is connected to the door frame 21 by adhesive bonding and fasteners; the surfaces of the outer door panel 221, foam board 222, vacuum insulation board 223 and inner door panel 224 are connected by adhesive bonding to form the door panel 2, and the sealing strip 23 is connected to the door frame 21 by means of slot, adhesive bonding and fasteners.

[0027] In this embodiment, the inner frame 14 consists of a main frame 141, an ice slab door 142, and a support frame 143. The ice slab door 142 is rotatably mounted on one end face of the main frame 141, and the ice slab door 142 is used to fix the ice slab 4. The support frame 143 is fixedly mounted on the other end faces of the main frame 141. The support frame 143 is fixedly connected to the thermal insulation composite panel 3. The main frame 141, the thermal insulation composite panel 3, and the support frame 143 together form a thermal insulation cavity 144. The ice slab 4 is fixedly mounted on the support frame 143. Specifically, an ice pack door 142 is rotatably mounted on the end face of the main frame 141. The ice pack door 142 is used to fix the ice pack 4. The ice pack door 142 has a double-opening structure. When arriving at the delivery location, one side of the ice pack door 142 can be opened to pick up and deliver goods, reducing the loss of internal temperature. At the same time, the ice pack 4 at the ice pack door 142 and the ice pack 4 in the insulation cavity 144 cooperate with each other, so that there are ice packs 4 on each end face of the temperature control box, forming a complete ice pack 4 space. This avoids the phenomenon that the end face of the door panel 2 of the traditional temperature control box cannot install ice packs 4, resulting in a lower temperature at the door panel 2 and thus uneven internal temperature control. The main frame 141 A support frame 143 is fixedly installed on the remaining end face; the support frame 143 is fixedly connected to the thermal insulation composite board 3; the main frame 141, the thermal insulation composite board 3 and the support frame 143 together form a thermal insulation cavity 144; an ice pack 4 is fixedly installed on the support frame 143. The support frame 143 is used to install and place the ice pack 4 and the ice pack door 142 to form a closed space for the ice pack 4. When installing the ice pack 4, it is only necessary to place the ice pack 4 on the support frame 143, which improves the convenience of installing the ice pack 4. At the same time, when disassembling the ice pack 4, it is only necessary to pull the ice pack 4 out from the support frame 143, which improves the convenience of installing and disassembling the ice pack 4.

[0028] In this embodiment, the thermal insulation composite panel 3 is composed of an outer structural panel 31, a vacuum insulation panel 32, and an inner structural panel 33; the vacuum insulation panel 32 is fixedly installed between the outer structural panel 31 and the inner structural panel 33; the outer structural panel 31 is prevented from being in contact with the outer frame 13; the inner structural panel 33 is connected to the surface of the inner frame 14. Specifically, the thermal insulation composite board 3 achieves thermal insulation through the vacuum insulation board 32, isolating the transfer of internal and external temperatures and ensuring the stability of the internal temperature of the temperature control box. The thermal insulation composite board 3 uses fumed silica or glass fiber as the core material of the vacuum insulation board 32, and the thickness of 10-40mm is preferred to achieve a high-efficiency thermal insulation effect, which is only 10%-30% of the thickness of the thermal insulation structure of the traditional temperature control box. This effectively expands the internal loading space of the box and reduces the overall weight. At the same time, the thermal insulation composite board 3 is installed without connectors, achieving seamless assembly, effectively avoiding the thermal bridge effect at the connection, and further improving the overall thermal insulation performance of the box.

[0029] Preferably, a protective film (not shown) is pre-attached to the surface of the vacuum insulation panel 32 to protect against mechanical damage that could break the vacuum during the bonding process.

[0030] In this embodiment, the ice pack 4 is composed of an ice pack box 41 and a phase change material 42; the phase change material 42 is encapsulated inside the ice pack box 41. Specifically, the ice pack box 41 can be any material with sufficient structural integrity, mainly encapsulating phase change material 42, specifically but not exclusively including plastic and metal. Plastic is usually the most cost-effective and lightest choice, preferably with a thickness of 0.01-2 mm, to encapsulate the phase change material 42. Phase change material 42 is a liquid or gel-type phase change material configured with chemical materials that can stabilize the system temperature within a specific range, including but not limited to alkanes, fatty alcohols, fatty acid esters, hydrated salts, hydrogels, etc. in liquid or gel form.

[0031] Preferably, the ice pack box 41 of this application is a hollow plastic box with a design size of 300mm wide * 600mm long * 30mm high * 2mm thick, and is sealed inside the hollow plastic box by phase change material 42 to form the ice pack 4.

[0032] In the assembly of this passive frame-panel composite temperature control box, the outer frame 13, inner frame 14, insulation composite panel 3, door panel 2, and ice pack 4 are first prefabricated and assembled. Then, the insulation composite panel 3 is fixed to the sides, top and bottom of the outer frame 13 by adhesive bonding. Next, the support bracket 143 on the inner frame 14 is pushed into the insulation composite panel 3 with adhesive and then bonded to the insulation composite panel 3 on the top surface. Finally, the door panel 2 is assembled with the rotating support 211 and the door panel fixing seat 131 on the outer frame 13, and fixed by any reinforcement measures with complete structural connection function, including but not limited to riveting and bolts, thereby completing the main structure of the temperature control box. Finally, the ice pack 4 is placed on the insulation cavity 144 and the ice pack door 142 to complete the assembly of the temperature control box.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A passive frame-panel composite temperature control box, characterized in that, include: Frame (1), door panel (2), thermal insulation composite board (3) and ice pack (4); The frame (1) is composed of aluminum square tubes (11), and adjacent aluminum square tubes (11) are fixedly connected by supporting corner pieces (12); The frame (1) is divided into an outer frame (13) and an inner frame (14). A door panel (2) is rotatably mounted on the outer frame (13), and a thermal insulation composite panel (3) is fixedly mounted on the outer frame (13). The inner frame (14) is located inside the outer frame (13), and the inner frame (14) is fixedly connected to the thermal insulation composite board (3); The inner frame (14) and the thermal insulation composite board (3) form a thermal insulation cavity (144), and ice packs (4) are linearly arranged in the thermal insulation cavity (144).

2. The temperature control box according to claim 1, characterized in that: The outer frame (13) is provided with a door panel fixing seat (131), and the lower end of the outer frame (13) is provided with a supporting rib (132). The door panel (2) is provided with a corresponding rotating support (211).

3. The temperature control box according to claim 2, characterized in that: The door panel (2) is composed of a door frame (21), a door panel composite board (22), and a sealing strip (23); Rotating supports (211) are fixedly installed at the upper and lower ends of the door frame (21), and a door panel composite panel (22) is fixedly installed inside the door frame (21). The door panel composite panel (22) is composed of an outer door panel (221), a foam plastic board (222), a vacuum insulation board (223), and an inner door panel (224) that are fixedly connected to each other; One end of the sealing strip (23) is connected to the door frame (21), and the other end of the sealing strip (23) is connected to the inner door panel (224).

4. The temperature control box according to claim 1, characterized in that: The inner frame (14) consists of a main frame (141), an ice gate (142), and a support frame (143); An ice gate (142) is rotatably mounted on the end face of the main frame (141), and the ice gate (142) is used to fix the ice pack (4). The main frame (141) has a support frame (143) fixedly installed on the remaining end faces. The support frame (143) is fixedly connected to the thermal insulation composite board (3); The main frame (141), the thermal insulation composite board (3) and the support frame (143) together form a thermal insulation cavity (144). An ice pack (4) is fixedly installed on the support frame (143).

5. The temperature control box according to claim 4, characterized in that: The thermal insulation composite panel (3) is composed of an outer structural panel (31), a vacuum insulation panel (32), and an inner structural panel (33); A vacuum insulation panel (32) is fixedly installed between the outer structural panel (31) and the inner structural panel (33). The outer structural plate (31) is attached to the surface of the outer frame (13); The inner structural plate (33) is connected to the surface of the inner frame (14).

6. The temperature control box according to claim 4, characterized in that: The ice pack (4) is composed of an ice pack box (41) and a phase change material (42); The ice pack box (41) contains a phase change material (42).

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