Folding type heat preservation box, temperature control module and assembling method of temperature control module

Abstract

The invention relates to the technical field of heat preservation boxes, in particular to a folding type heat preservation box, a temperature control module and an assembly method thereof, the folding type heat preservation box comprises a flexible heat preservation bag and a heat preservation box body arranged in an inner cavity of the flexible heat preservation bag, the heat preservation box body comprises a box cover, a bottom plate, two end plates and two side plates, and elastic plate turning mechanisms are hinged to the front end and the rear end of the bottom plate. According to the invention, the insertion structure of the side plate and the end plate is arranged, and the dynamic guide matching between the elastic plate turnover mechanism and the end plate is combined, so that the advanced adhesion of two magic tapes in the mounting process of the bottom plate is effectively avoided. A flexible heat preservation bag is arranged outside a heat preservation box body, a double-layer packaging structure of an inner box and an outer box is formed, and the problems that a traditional heat preservation box is poor in sealing performance and insufficient in structural strength are effectively solved; meanwhile, advanced adhesion of the two hook-and-loop fasteners in the installation process of the bottom plate is avoided through a dynamic guide matching structure, and the problem that the splicing operation convenience of a traditional heat preservation box is insufficient is effectively solved.

Description

Technical Field

[0001] This invention relates to the field of insulated boxes, and in particular to a foldable insulated box, a temperature control module, and an assembly method thereof. Background Technology

[0002] Foldable insulated boxes, as a reusable green packaging device, are suitable for the green transportation and turnover of products with special temperature control requirements, such as pharmaceuticals, vaccines, and bacterial strains. They are made of environmentally friendly materials (such as EPP and recycled PET), combining excellent insulation performance with environmental characteristics. As a storage medium for the transportation and turnover of contents, they prevent spoilage or deterioration due to temperature fluctuations during transport, ensuring the safety and effectiveness of the contents. For example, a foldable insulated box is disclosed in utility model patent application CN218617684U.

[0003] Traditional folding insulated boxes are generally assembled from multiple panels using mortise and tenon joints, Velcro fasteners, or other methods. Adjacent panels are connected and positioned using mechanical fittings or flexible fixing structures. However, this type of structure has the following problems: First, because the panels are a non-continuous integral structure, gaps inevitably appear after splicing, causing heat exchange between the inside and outside of the box and weakening the overall insulation performance of the box.

[0004] Secondly, the structural strength of the enclosure relies mainly on local connections such as mortise and tenon joints or Velcro, resulting in insufficient overall rigidity. During handling, stacking, or impact, deformation easily occurs, further widening the gaps between panels and reducing insulation effectiveness.

[0005] Furthermore, when installing the base plate inside the frame formed by splicing the four side panels, the narrow internal space makes it easy for the Velcro on the side edge of the base plate to partially stick to the corresponding Velcro on the inner wall of the frame before complete alignment. Once this happens, external force must be applied to forcibly tear it apart, which not only increases the assembly difficulty but may also damage the Velcro or cause repeated failures in pasting, reducing the convenience of assembling the insulated box. Summary of the Invention

[0006] In view of this, the present invention proposes a foldable insulated box, a temperature control module and its assembly method. By setting a flexible insulation bag on the outside of the insulated box, a double-layer packaging structure of "inner box + outer packaging" is formed, which effectively solves the problems of poor sealing and insufficient structural strength of traditional insulated boxes. At the same time, by using a dynamic guiding fit structure to avoid the premature adhesion of the two Velcro straps during the installation of the bottom plate, the problems of poor insulation performance and insufficient convenience of splicing operation of traditional foldable insulated boxes are effectively solved.

[0007] The technical solution of this invention is implemented as follows: On one hand, the present invention provides a foldable insulated box, comprising a flexible insulated bag and an insulated box body disposed within its inner cavity, wherein the insulated box body includes a lid, a bottom plate, two end plates, and two side plates, wherein... The lid is fixed to the flip-top of the flexible insulation bag, the end plates are respectively fixed to the front and rear inner walls of the inner cavity, and the side plates are vertically inserted between the two end plates to form a frame structure that accommodates the bottom plate. Both ends of the base plate are hinged with elastic flap mechanisms, and the elastic flap mechanisms and the end plates on the corresponding sides are provided with Velcro that cooperate with each other. The elastic flip mechanism and the end plate on the corresponding side form a dynamic guiding and cooperating structure, which is used to force the elastic flip mechanism to flip during the installation of the base plate, so that the Velcro on the elastic flip mechanism is physically isolated from the Velcro on the end plate, and the isolation is released after installation, so that the two Velcros automatically stick together.

[0008] Based on the above technical solution, preferably, the side plate has protrusions at both its front and rear ends, and the end plate has a path groove corresponding to the position of the protrusions. The path groove is used to guide the protrusion on the corresponding side to slide vertically; Both the path groove and the protrusion have trapezoidal cross-sections, and both are detachable.

[0009] Based on the above technical solution, preferably, the base plate is provided with receiving grooves at both the front and rear ends for accommodating the elastic flip-plate mechanism, wherein the elastic flip-plate mechanism includes a flip-plate, wherein... The top of the flap is hinged to the top of the receiving groove, one side of which is connected to the inner wall of the receiving groove via a return spring, and the other side is used to fix the Velcro. The flip plate is provided with a through ball groove, and a plastic ball is rotatably embedded in the ball groove to abut against the end face of the end plate, forcing the flip plate to flip inward; The end plate is provided with a countersunk hole for receiving at least part of the plastic ball, so that the flap can be flipped back to its original position under the elastic force of the return spring; The top of the receiving groove is provided with a finger hole, and the top of the flip plate is fixed with a finger plate for manually flipping the flip plate.

[0010] Based on the above technical solution, preferably, both the front and rear ends of the base plate are slidably provided with locking tongues, and the end plate is provided with insertion holes for the locking tongues to be inserted. The receiving groove is provided with a storage hole for the locking tongue to slide back and forth, and the top of the storage hole is provided with a path hole along the axial direction; A lever is fixed to the top of the latch, and a connecting hole is provided at the bottom of the flap. The lever passes through the path hole and extends into the connecting hole. When the flap flips over, it drives the lever to move horizontally in the path hole, thereby causing the locking tongue to engage or disengage from the socket.

[0011] Based on the above technical solutions, preferably, the inner wall of the ball groove is a spherical structure, and its inner diameter is 1mm larger than the diameter of the plastic ball, forming a clearance fit. The hook and loop fasteners on the flip plate are plush hook and loop fasteners, and the plush hook and loop fasteners are provided with clearance holes for the plastic ball to pass through. The loops of the Velcro fastener contact the surface of the plastic ball, and are used to brush away foreign objects attached to the surface of the plastic ball during relative motion.

[0012] Based on the above technical solutions, preferably, the hook and loop fasteners provided on the end plate are hook and loop fasteners, and the end plate is provided with a groove for embedding the hook and loop fasteners.

[0013] A temperature control module for the aforementioned foldable insulated box includes a semiconductor refrigeration module, wherein, The semiconductor cooling module is located between the flip-top of the flexible insulation bag and the box lid, and is used to draw in the air inside the insulation box, cool the drawn air, and then send it back into the insulation box.

[0014] Based on the above technical solutions, preferably, the semiconductor cooling module includes a first insulation shell, an axial flow fan, a heat dissipation module, and a semiconductor cooling module, wherein a mating hole is provided in the middle area of ​​the cover. The first thermal insulation shell is fixedly connected to the flip-top of the flexible thermal insulation bag and the box lid; An air inlet pipe is fixed in the middle area of ​​the bottom of the first insulation shell, and an air outlet is provided around the bottom. The air inlet pipe passes through the mating hole and communicates with the interior of the insulation box; the axial flow fan is fixed inside the air inlet pipe. The top of the end plate and the side plate are vertically provided with grooves, the top of the grooves are vertically connected to the air outlets on the corresponding sides, and the sides are provided with grid holes that communicate with the interior of the insulation box. The heat dissipation module is fixed to the top inside the first insulation shell, and its rear end passes through the side end of the first insulation shell to form a ventilation end. The hot end of the semiconductor cooling module is fixed inside the heat dissipation module, and the cold end is located above the air inlet pipe.

[0015] Based on the above technical solutions, preferably, the heat dissipation module includes a second insulation shell, a heat pipe, and an exhaust fan, wherein, The second insulation shell is fixedly connected to the first insulation shell, and has an air inlet on one side of its rear end and an exhaust outlet on the other side; One end of the heat pipe is fixedly connected to the hot end of the semiconductor refrigeration module, and the other end is located between the air inlet and the exhaust outlet. The exhaust fan is fixed inside the second insulation shell, and its air outlet is connected to the exhaust port.

[0016] An assembly method, using the above-mentioned temperature control module, includes the following steps: S1. Fix the semiconductor cooling module to the bottom of the flip-top of the flexible insulation bag using Velcro, then insert the air inlet pipe into the mating hole of the box cover, and fix the box cover to the bottom of the semiconductor cooling module using Velcro. S2. Fasten the flap of the flexible insulation bag so that the lid is embedded inside the frame structure and the air outlet is aligned with the corresponding groove on the upper and lower sides.

[0017] The foldable insulated box, temperature control module, and assembly method of the present invention have the following advantages over the prior art: (1) By setting a flexible insulation bag on the outside of the insulated box, a double-layer structure of "inner box + outer packaging" is formed, which improves the sealing and structural strength of the insulated box, makes it difficult for the air inside and outside the box to exchange heat, and makes it less likely to deform during handling; at the same time, an elastic flipping mechanism is set at both ends of the bottom plate, which forms a dynamic guiding and cooperating structure with the end plate. During the installation of the bottom plate, the elastic flipping mechanism is guided by the end plate and automatically flips, so that the Velcro on the side of the bottom plate and the corresponding Velcro on the side of the end plate are physically isolated, effectively avoiding the problem of premature adhesion; after installation, the elastic flipping mechanism automatically resets, realizing the reliable adhesion of the two Velcro, effectively improving the convenience of splicing operation.

[0018] (2) The frame structure formed by vertical interlocking works in conjunction with the latch-end plate interlocking structure to improve the structural strength of the insulated box. Combined with the outer constraint of the flexible insulation bag, the entire foldable insulated box has higher structural stability during transportation, expanding the applicable range of the box. Moreover, the latch can be linked with the elastic flip-plate mechanism to realize automatic unlocking or interlocking without additional manual operation, further improving the convenience of splicing operation.

[0019] (3) By setting a rolling plastic ball on the flip plate and abutting against the end face of the end plate, smooth rolling contact is achieved, which significantly reduces the frictional resistance during the assembly process and facilitates the assembly operation. In addition, by setting finger holes and finger plates, users can manually flip the flip plate to achieve quick unlocking and maintenance, which facilitates disassembly and further improves the user's ease of operation. At the same time, users can manually press the flip plate to improve the adhesion effect of the two Velcro straps.

[0020] (4) By setting the ball groove to be through, it helps foreign objects to be discharged from the ball groove, enhances the environmental adaptability of the structure, and prevents the plastic ball from getting stuck. At the same time, the relative movement between the plush hook and loop fastener and the plastic ball can automatically brush away the dust, debris and other foreign objects attached to its surface, effectively preventing the accumulation of foreign objects from affecting the rolling performance or causing the ball to flip and get stuck. This realizes the "self-cleaning" function of key moving parts and significantly improves the long-term stability and maintenance-free nature of the mechanism.

[0021] (5) By setting a temperature control module between the flip-top of the insulated bag and the lid of the box, semiconductor refrigeration technology is used to actively circulate and cool the air inside the insulated box, breaking through the limitation of traditional insulated boxes that only rely on passive insulation, and significantly improving the refrigeration performance. It is especially suitable for long-term and long-distance transportation of temperature-sensitive materials such as food and medicine, expanding the application range of the product.

[0022] (6) By setting up a temperature control module to integrate the air inlet pipe, axial flow fan, air outlet, sink and grid hole, a complete internal circulation air duct is formed. The axial flow fan draws air from the box through the air inlet pipe, and after being cooled by the semiconductor refrigeration module, it enters the sink through the air outlet and is sent back into the box through the grid hole, so as to achieve efficient and uniform cold air distribution and circulation, and ensure that all items in the box can come into contact with cold air, thereby improving the overall cooling effect and temperature uniformity. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a perspective view of a foldable insulated box according to the present invention; Figure 2 This is a perspective view of a foldable insulated box of the present invention after the lid is opened; Figure 3 This is a perspective view of the flexible thermal insulation bag of the present invention; Figure 4 This is a partial perspective view of the heat-insulating box body of the present invention; Figure 5 This is a schematic diagram of the folded state of a foldable insulated box according to the present invention; Figure 6 This is a perspective view of the base plate of the present invention; Figure 7 This is a perspective view of the end plate of the present invention; Figure 8This is a schematic diagram of the internal structure of a foldable insulated box according to the present invention; Figure 9 for Figure 8 Enlarged view of point A; Figure 10 This is a schematic diagram of the flipping state of the elastic flap mechanism of the present invention; Figure 11 This is an exploded view of the semiconductor cooling module and the housing cover of the present invention; Figure 12 This is a schematic diagram of the internal structure of the semiconductor cooling module of the present invention; Figure 13 This is a schematic diagram of the internal structure of the heat dissipation module of the present invention; Figure 14 This is a schematic diagram of the mating structure between the lever and the connecting hole; In the diagram: 1. Flexible insulation bag; 2. Insulated box body; 3. Semiconductor refrigeration module; 21. Box lid; 22. Bottom plate; 23. End plate; 24. Side plate; 25. Fleece-faced Velcro; 26. Hook-faced Velcro; 27. Flip-top; 28. Return spring; 29. ​​Plastic ball; 31. First insulation shell; 32. Axial flow fan; 33. Heat dissipation module; 34. Semiconductor refrigeration module; 201. Slot; 202. Grille hole; 212. Mating hole; 221. Receiving slot; 222. Finger hole; 223. 224. Locking tongue; 225. Storage hole; 226. Path hole; 227. Lever; 228. Lower limit block; 229. Upper limit block; 231. Path groove; 232. Countersunk hole; 233. Insertion groove; 234. Insertion hole; 241. Protrusion; 251. Clearance hole; 271. Ball groove; 272. Finger plate; 273. Connection hole; 311. Air inlet pipe; 312. Air outlet; 331. Second insulation shell; 332. Heat pipe; 333. Exhaust fan; 3311. Air inlet; 3312. Exhaust outlet. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0026] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention based on the specific circumstances.

[0027] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0030] The following disclosure provides numerous different embodiments or examples for implementing various structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. Additionally, examples of various specific processes and materials are provided in this invention; however, those skilled in the art will recognize the applicability of other processes and / or the use of other materials.

[0031] like Figure 1-14As shown, a foldable insulated box of the present invention includes a flexible insulated bag 1 and an insulated box body 2, wherein the insulated box body 2 is disposed within the inner cavity of the flexible insulated bag 1. This structure, by placing the insulated box body 2 within the inner cavity of the flexible insulated bag 1, forms a double-layer structure of "inner box + outer packaging". The flexible insulated bag 1 is made of recyclable PET composite aluminum film and bio-based non-woven fabric, which has excellent thermal insulation performance and mechanical strength, and can be folded as a whole, making it easy to fold and store with the insulated box body 2, saving storage space and greatly improving transportation and storage efficiency.

[0032] The interior of the insulated box 2 is used to store items to be transported and includes a lid 21, a bottom plate 22, two end plates 23, and two side plates 24. Each plate is injection molded from recycled PP or bamboo fiber composite material, possessing excellent environmental performance and mechanical strength. The lid 21 is fixed to the flap of the flexible insulated bag 1, and the two end plates 23 are respectively fixed to the front and rear inner walls of the flexible insulated bag 1. The side plates 24 are vertically inserted and fixed between the two end plates 23, forming a frame structure for accommodating the bottom plate 22. Both ends of the base plate 22 are hinged with elastic flip-plate mechanisms and slidably equipped with locking tongues 223. The elastic flip-plate mechanisms and the corresponding end plates 23 are provided with mutually cooperating Velcro. The elastic flip-plate mechanisms and the corresponding end plates 23 form a dynamic guiding and cooperating structure, which is used to force the elastic flip-plate mechanisms to flip during the installation of the base plate 22, so that the Velcro on the elastic flip-plate mechanisms and the Velcro on the end plates 23 are physically isolated, and the isolation is released after installation, so that the Velcro on the elastic flip-plate mechanisms and the Velcro on the end plates 23 are automatically adhered. When the elastic flip-plate mechanisms flip, they synchronously drive the locking tongues 223 to extend and retract, so that the locking tongues 223 can be inserted into or separated from the corresponding end plates 23.

[0033] The aforementioned insertion structure between end plate 23 and side plate 24 significantly reduces the amount of Velcro used, simplifies assembly steps, and improves assembly efficiency. Simultaneously, the dynamic guiding mating structure achieves physical isolation between the two Velcro straps, effectively preventing premature adhesion during alignment. After installation, the elastic flip-plate mechanism automatically resets, ensuring reliable adhesion between the two Velcro straps.

[0034] Furthermore, the flexible flap mechanism drives the locking tongue 223 to form a front-to-back locking engagement with the corresponding end plate 23, thereby locking the bottom plate 22 and the end plate 23 together. This locks the bottom plate 22 securely to the inside of the frame structure, resulting in good structural strength and preventing deformation of the insulation box 2 during use, while also providing good load-bearing capacity. Moreover, the locking tongue 223 can be linked with the flexible flap mechanism to achieve automatic unlocking or insertion, eliminating the need for manual operation and further enhancing the convenience of the assembly process.

[0035] In the above structure, the frame structure enhances the overall structural strength of the insulation box 2. Simultaneously, the frame structure constrains the installation path of the base plate 22, ensuring its smooth movement within the frame structure and reducing the risk of wobbling and misalignment during installation. This, in turn, ensures that the elastic flip-up mechanism accurately engages with the dynamic guiding structure of the end plate 23 during base plate 22 installation. This not only facilitates precise alignment of the two Velcro straps but also ensures reliable adhesion after installation. Specifically, after the base plate 22 is installed, its side end face fits against the inner wall of the frame structure.

[0036] The side plate 24 has protrusions 241 at both its front and rear ends, and the end plate 23 has a path groove 231 at the position corresponding to the protrusions 241. The path groove 231 is used to guide the protrusions 241 on the corresponding side to slide vertically, ensuring that the side plate 24 can be accurately inserted and fixed between the end plates 23. The cross-sections of the path groove 231 and the protrusions 241 are both trapezoidal. This structure not only enhances the connection strength between the side plate 24 and the end plate 23, but also prevents lateral displacement through self-guiding characteristics, thereby improving the overall stability of the frame structure.

[0037] Furthermore, the upper end of the path groove 231 is open, which allows for the detachable configuration of the path groove 231 and the protrusion 241, making it easy to disassemble and maintain the side plate 24, thus improving the modularity and flexibility of the product.

[0038] Based on the above structure, the base plate 22 has receiving grooves 221 at both the front and rear ends for accommodating an elastic flap mechanism, which includes a flap 27. The top of the flap 27 is hinged to the top of the receiving groove 221, and one side of the flap 27 is connected to the inner wall of the receiving groove 221 via a return spring 28 to provide elastic restoring force. The other side is used to fix Velcro. In the initial state, the return spring 28 is in an extended and relaxed state, and the flap 27 is in a vertical state.

[0039] The flap 27 has a through ball groove 271, in which a plastic ball 29 is rotatably embedded. The plastic ball 29 protrudes outward at least partially, so that it abuts against the end face of the end plate 23 when the base plate 22 is installed, forcing the flap 27 to flip into the receiving groove 221. At the same time, the middle part of the plastic ball 29 cooperates with the ball groove 271, so that the plastic ball 29 will not fall out of the ball groove 271.

[0040] The end plate 23 is provided with a countersunk hole 232, which is used to receive at least part of the plastic ball 29 when the base plate 22 is installed in place, so as to relieve the pressure on the flip plate 27 and allow the flip plate 27 to flip back to its original position under the elastic force of the return spring 28.

[0041] The reset spring 28 is a spring plate structure. When the flap 27 flips into the receiving groove 221, it compresses the reset spring 28 to deform elastically and store force. When the plastic ball 29 enters the countersunk hole 232, the reset spring 28 rebounds and drives the flap 27 to flip back to its original position.

[0042] The above-mentioned dynamic guiding and engaging structure operates as follows: When the base plate 22 is inserted downwards into the frame structure, the plastic ball 29 abuts against the end face of the end plate 23. As the base plate 22 continues to move downwards, the plastic ball 29 rolls along the end face of the end plate 23, maintaining the flipped state of the flap 27. When the plastic ball 29 rolls into the countersunk hole 232, the flap 27 flips back to its original position under the elastic force of the return spring 28, causing the two Velcro straps to adhere together, achieving adhesion. This process is the dynamic guiding and engaging process of the elastic flap mechanism and the corresponding end plate 23: In the first stage, the plastic ball 29 engages with the end plate 23, guiding the flap 27 to flip into the receiving groove 221; in the second stage, the plastic ball 29 engages with the countersunk hole 232, and the elastic force of the return spring 28 guides the flap 27 to flip back to its original position.

[0043] In this structure, the inner wall of the ball groove 271 is a spherical structure, and its inner diameter is 1mm larger than the diameter of the plastic ball 29. The two form a gap fit, which ensures that the plastic ball 29 can rotate freely in the ball groove 271 and ensures a smooth guiding process.

[0044] Furthermore, the plastic ball 29 is a friction-reducing plastic ball made of polyoxymethylene (POM) or polytetrafluoroethylene (PTFE) material. It does not rust and has a low coefficient of friction, ensuring smooth sliding or rolling even without external lubrication.

[0045] In addition, a finger hole 222 is provided at the top of the receiving groove 221, and a finger plate 272 is fixed at the top of the flip plate 27 for manually flipping the flip plate 27. During operation, a finger is inserted into the finger hole 222 and the finger plate 272 is pulled upward to flip the flip plate 27. A lower limit block 228 is provided in the area below the finger plate 272 and near the flip plate 27. The lower limit block 228 is fixed inside the receiving groove 221 to limit the downward displacement of the finger plate 272 and to maintain the vertical state of the flip plate 27 in its initial state. At the same time, an upper limit block 229 is provided in the area above the finger plate 272 and near the flip plate 27 to limit the upward displacement of the finger plate 272, preventing excessive displacement when the finger pulls the finger plate 272 upward, thereby ensuring good cooperation between the lower end of the flip plate 27 and the return spring 28.

[0046] In addition, after the Velcro on the flip plate 27 and the Velcro on the end plate 23 are attached, the finger plate 272 can be pressed down appropriately to make the two Velcros more securely attached.

[0047] Based on the above structure, the hook and loop fastener provided on the flip plate 27 is a plush hook and loop fastener 25, and the plush hook and loop fastener 25 is provided with a clearance hole 251 for the plastic ball 29 to pass through. The plush of the plush hook and loop fastener 25 is in contact with the surface of the plastic ball 29, and is used to brush away foreign objects attached to the surface of the plastic ball 29 during relative movement.

[0048] During the installation and removal of the base plate 22, the fibers of the Velcro 25 continuously contact the surface of the plastic ball 29 and move relative to it, automatically brushing away dust, debris, and other foreign objects adhering to the surface of the plastic ball 29. This "self-cleaning" function effectively prevents the accumulation of foreign objects from affecting the rolling performance or causing the flip plate 27 to jam, significantly improving the stability and maintenance-free nature of key moving parts and extending the product's service life.

[0049] Furthermore, the hook and loop fasteners on the end plate 23 are hook-and-loop fasteners 26, and the end plate 23 has grooves 233 for embedding the hook and loop fasteners 26. This structure keeps the surface of the end plate 23 flat, which facilitates smooth cooperation with the base plate 22 and the flip plate 27. The cooperation between the hook and loop fasteners and the pile side of the flip plate 27 ensures the bonding strength, takes into account both connection reliability and ease of operation, and further improves the stability of the overall structure.

[0050] Based on the above structure, a storage hole 224 is provided below the receiving groove 221 for the locking tongue 223 to slide back and forth, and a path hole 225 is provided at the top of the storage hole 224 along the axial direction; a lever 226 is fixed at the top of the locking tongue 223, and a connecting hole 273 is provided at the bottom of the flap 27. The lever 226 passes through the path hole 225 upward and extends into the connecting hole 273.

[0051] When the flap 27 flips inward, its lower end carries the lever 226 through the connecting hole 273 and moves it horizontally through the path hole 225, thereby causing the latch 223 to retract into the base plate 22, separating the latch 223 from the insertion hole 234 and unlocking the device. In this state, the lever 226 rests against the end of the path hole 225 away from the end plate 23. When the base plate 22 is installed in place, the flap 27 flips back to its original position, and the connecting hole 273 carries the lever 226 back to its original position in the opposite direction, thereby causing one end of the latch 223 to insert into the insertion hole 234 and locking the device. In this state, the lever 226 rests against the end of the path hole 225 near the end plate 23.

[0052] In addition, the inner diameter of the connecting hole 273 is slightly larger than the upper diameter of the lever 226, so that the lever 226 can move slightly within the connecting hole 273 to accommodate the flipping action of the flap 27.

[0053] Based on the above structure, the foldable insulated box of the present invention also includes a temperature control module, which is used to draw air from inside the insulated box 2, cool the drawn air, and then send it back into the insulated box 2 to achieve active circulation cooling. The temperature control module includes a semiconductor cooling module 3, which is fixed between the flip-top part of the flexible insulated bag 1 and the box lid 21 by Velcro, without affecting the folding performance of the insulated box, and at the same time facilitating disassembly and maintenance.

[0054] The semiconductor cooling module 3 includes a first insulation shell 31, an axial flow fan 32, a heat dissipation module 33, and a semiconductor cooling module 34. The middle area of ​​the cover 21 is provided with a mating hole 212 for connecting the airflow channels.

[0055] The first insulation shell 31 is fixedly connected to the flip-top of the flexible insulation bag 1 and the box cover 21. An air inlet pipe 311 is fixed in the middle area of ​​the bottom of the first insulation shell 31, and air outlets 312 are provided around the bottom. The air inlet pipe 311 passes through the mating hole 212 and communicates with the inside of the insulation box 2. An axial flow fan 32 is fixed inside the air inlet pipe 311 and is used to actively draw hot air from the inside of the insulation box 2.

[0056] The top of the end plate 23 and the side plate 24 are vertically formed with recessed grooves 201. The top of the recessed grooves 201 is vertically connected to the air outlets 312 on the corresponding sides. The sides are formed with grille holes 202 that communicate with the interior of the insulation box 2. This structure allows the cooled air to enter the recessed grooves 201 through the air outlets 312 and then be horizontally sent into the interior of the insulation box 2 through the grille holes 202, forming a lateral air supply path.

[0057] The heat dissipation module 33 is fixed to the top inside the first insulation shell 31, and its rear end penetrates through the side of the first insulation shell 31 to form an air exchange end for heat exchange with the external environment. The hot end of the semiconductor cooling module 34 is fixed inside the heat dissipation module 33, and the cold end is located above the air inlet pipe 311.

[0058] This integrated structure forms a complete internal circulation air duct, achieving efficient and uniform cold air distribution and improving the overall cooling effect. Specifically, after the axial fan 32 starts, it draws air from inside the insulated box 2 and enters the air inlet pipe 311 through the mating hole 212. The cold end of the semiconductor refrigeration module 34 cools the injected air, and the cooled air is discharged from the air outlets 312 around the bottom of the first insulated shell 31 and enters the grooves 201 on the top of the end plate 23 and the side plate 24. Then it is sent back into the insulated box 2 through the grille holes 202, forming a lateral horizontal airflow. With the continuous suction of the axial fan 32, a natural convection trend is formed from bottom to top inside the box, which works in conjunction with the lateral air supply to achieve three-dimensional airflow organization and improve the refrigeration effect.

[0059] Since the cold end of the semiconductor cooling module 34 is positioned directly opposite the air inlet pipe 311, when the axial flow fan 32 is running, the air inside the insulation box 2 is drawn into the air inlet pipe 311 through the mating hole 212 and flows directly over the cold end surface of the semiconductor cooling module 34, achieving efficient and centralized heat exchange. The cooled air diffuses evenly within the internal space of the first insulation shell 31 and is then simultaneously discharged from the air outlets 312 distributed around the bottom.

[0060] This airflow organization method allows cold air to complete a flow path of "central cooling - radial diffusion - circumferential output" within the shell, effectively avoiding local cold air concentration or airflow dead zones, significantly improving the uniformity of cold air distribution between the air outlets 312, thereby enhancing the overall cooling capacity of the internal space of the insulated box 2, and improving the overall refrigeration effect and temperature consistency.

[0061] In addition, the first insulation shell 31 also integrates temperature sensors, a temperature controller, and lithium batteries, among other control and power supply components. The temperature sensor collects real-time temperature data from inside the insulation chamber 2 and transmits the signal to the temperature controller. Based on a preset temperature threshold, the temperature controller automatically starts and stops the semiconductor refrigeration module 34 and the axial fan 32, achieving closed-loop control of the refrigeration system and ensuring the internal temperature remains stable within the set range, thus achieving precise temperature control. The lithium battery, as an independent power module, provides power to the semiconductor refrigeration module 34, the axial fan 32, the temperature controller, and the temperature sensor, enabling the temperature control module to operate stably for extended periods in mobile or outdoor environments without external power, greatly expanding the product's application scenarios and portability. The temperature sensors, temperature controllers, and lithium batteries, among other control and power supply components, can utilize applicable models and connection methods known in the art.

[0062] To further enhance ease of use, a charging interface is integrated on the outer wall of the first insulation shell 31. This charging interface is electrically connected to the lithium battery and supports charging the lithium battery via an external power source (such as a USB charger, power bank, or car charger). The charging interface can be either Type-C or Micro-USB, offering advantages such as high versatility, high charging efficiency, and long plug-in / plug-out lifespan. Users can conveniently complete charging operations in daily use, ensuring the continuous availability of the temperature control module.

[0063] In the above structure, the heat dissipation module 33 includes a second insulation shell 331, a heat pipe 332 and an exhaust fan 333, which are used to efficiently conduct and dissipate the heat generated by the semiconductor cooling module 34 during operation, ensuring its continuous and stable operation.

[0064] The second insulation shell 331 is fixedly connected to the first insulation shell 31, forming a layered nested structure that maintains overall compactness while achieving thermal isolation. The first insulation shell 31 and the second insulation shell 331 are made of thermal insulation materials (such as foamed polyurethane or flame-retardant ABS composite shells), effectively blocking external environmental thermal interference to the internal refrigeration components.

[0065] An air inlet 3311 is provided on one side of the rear end of the second insulation shell 331, and an exhaust port 3312 is provided on the other side. The air inlet 3311 and the exhaust port 3312 face opposite directions, forming a convection ventilation layout. This effectively reduces the mutual interference between the inlet and outlet airflows, avoids airflow short-circuiting or eddy stagnation, and allows low-temperature air from the outside environment to smoothly enter the interior of the second insulation shell 331 from the air inlet 3311 and be forcibly discharged through the exhaust port 3312, significantly improving air circulation efficiency and heat dissipation capacity.

[0066] One end of the heat pipe 332 is fixedly connected to the hot end of the semiconductor cooling module 34, and efficient thermal coupling is achieved through thermal grease or metal clamp. The other end is located in the airflow channel between the air inlet 3311 and the exhaust port 3312. The heat pipe 332 utilizes the phase change heat transfer mechanism of its internal working fluid to quickly conduct the heat generated by the hot end of the semiconductor cooling module 34 to the heat dissipation area.

[0067] The exhaust fan 333 is fixed inside the second insulation shell 331, with its outlet end connected to the exhaust port 3312 to form a directional exhaust channel. During operation, the exhaust fan 333 starts, forcibly driving air to flow in from the inlet 3311, across the surface of the heat pipe 332, absorbing its heat, and then being discharged at high speed from the exhaust port 3312, achieving active air-cooling circulation. This forced convection method significantly improves the heat dissipation efficiency of the heat pipe 332, ensuring that the semiconductor cooling module 34 maintains good cooling performance even under long-term high-load operation. Correspondingly, the flip-top of the flexible insulation bag 1 has two air vents: one for outside air to enter through the inlet 3311, and the other for exhaust air to exit through the exhaust port 3312.

[0068] In this structure, the exhaust fan 333 can adopt the structure of a laptop cooling fan, with an overall thickness of less than 10mm, which minimizes the space occupied by the second insulation shell 331 in the vertical direction, meets the requirements of the foldable insulation box for lightness and compactness, facilitates the integrated installation of the heat dissipation module 33 in a limited space, and does not damage the overall flatness of the appearance.

[0069] When this temperature control module is used in the aforementioned insulated box, its assembly process includes the following steps: S1. Fix the semiconductor cooling module 3 to the bottom of the flip-top of the flexible insulation bag 1, then insert the air inlet pipe 311 into the mating hole 212 of the box cover 21, and fix the box cover 21 to the bottom of the semiconductor cooling module 3. S2. Fasten the flap of the flexible insulation bag 1 so that the lid 21 is embedded inside the frame structure and the air outlet 312 is aligned with the corresponding groove 201.

[0070] When the foldable insulated box needs to be folded, the finger plate 272 is pulled upwards to flip the flap 27, causing the two Velcro straps to separate and the locking tongue 223 to disengage from the socket 234. During the pulling process, the entire bottom plate 22 is lifted upwards with the help of the finger plate 272, causing it to detach from the frame structure formed by the side plate 24 and the end plate 23. After detachment, the side plate 24 is pulled upwards to separate it from the end plate 23. The separated side plate 24 and bottom plate 22 are placed into the flexible insulation bag 1, and the empty part of the flexible insulation bag 1 is folded to make it folded up. Figure 5 The insulated box is shown in its folded state. When folded, it has a compact structure, occupies little space, and can increase the loading capacity of a single transport vehicle and the space utilization rate of a warehouse, directly reducing logistics and inventory costs.

[0071] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A foldable insulated box, characterized in that: It includes a flexible insulation bag (1) and an insulation box (2) disposed in its inner cavity. The insulation box (2) includes a lid (21), a bottom plate (22), two end plates (23) and two side plates (24). The lid (21) is fixed to the flip-top of the flexible insulation bag (1), the end plates (23) are respectively fixed to the front and rear inner walls of the inner cavity, and the side plate (24) is vertically inserted between the two end plates (23) to form a frame structure that accommodates the bottom plate (22). The base plate (22) is hinged to both the front and rear ends with an elastic flap mechanism, and the elastic flap mechanism and the end plate (23) on the corresponding side are provided with Velcro that cooperate with each other. The elastic flip mechanism and the corresponding end plate (23) form a dynamic guiding and cooperating structure, which is used to force the elastic flip mechanism to flip during the installation of the base plate (22), so that the Velcro on the elastic flip mechanism and the Velcro on the end plate (23) are physically isolated, and the isolation is released after installation, so that the two Velcros automatically stick together.

2. A foldable insulated box as described in claim 1, characterized in that: The side plate (24) has protrusions (241) at both the front and rear ends, and the end plate (23) has a path groove (231) at the position corresponding to the protrusions (241). The path groove (231) is used to guide the protrusion (241) on the corresponding side to slide vertically; The cross-sections of the path groove (231) and the protrusion (241) are both trapezoidal, and both are detachable.

3. A foldable insulated box as described in claim 1, characterized in that: The base plate (22) is provided with receiving grooves (221) at both the front and rear ends for accommodating the elastic flap mechanism. The elastic flap mechanism includes a flap (27), wherein... The top of the flap (27) is hinged to the top of the receiving groove (221), one side of which is connected to the inner wall of the receiving groove (221) by a return spring (28), and the other side is used to fix the Velcro. The flap (27) is provided with a through ball groove (271), and a plastic ball (29) is rotatably embedded in the ball groove (271) to abut against the end face of the end plate (23) and force the flap (27) to flip inward; The end plate (23) is provided with a countersunk hole (232) for receiving at least part of the plastic ball (29) so that the flip plate (27) can be flipped back to its original position under the elastic force of the return spring (28); The top of the receiving groove (221) is provided with a finger hole (222), and the top of the flip plate (27) is fixed with a finger plate (272) for manually flipping the flip plate (27).

4. A foldable insulated box as described in claim 3, characterized in that: The base plate (22) has a locking tongue (223) slidably provided at both the front and rear ends, and the end plate (23) has a socket (234) for inserting the locking tongue (223). Below the receiving groove (221) is a storage hole (224) for the locking tongue (223) to slide back and forth, and the top of the storage hole (224) is provided with a path hole (225) along the axial direction. The top of the latch (223) is fixed with a lever (226), and the bottom of the flap (27) is provided with a connecting hole (273). The lever (226) passes through the path hole (225) upward and extends into the connecting hole (273). When the flap (27) flips over, it drives the lever (226) to move horizontally in the path hole (225), thereby causing the locking tongue (223) to be inserted into or separated from the insertion hole (234).

5. A foldable insulated box as described in claim 3, characterized in that: The inner wall of the ball groove (271) is a spherical structure, and its inner diameter is 1 mm larger than the diameter of the plastic ball (29), forming a clearance fit. The hook and loop fastener on the flip plate (27) is a plush hook and loop fastener (25), and the plush hook and loop fastener (25) is provided with a clearance hole (251) for the plastic ball (29) to pass through. The loops of the Velcro (25) are in contact with the surface of the plastic ball (29) to brush away foreign objects attached to the surface of the plastic ball (29) during relative motion.

6. A foldable insulated box as described in claim 3, characterized in that: The hook and loop fasteners provided on the end plate (23) are hook and loop fasteners (26), and the end plate (23) is provided with a groove (233) for embedding the hook and loop fasteners (26).

7. A temperature control module for use in the foldable insulated box as described in any one of claims 1-6, characterized in that: Including a semiconductor cooling module (3), wherein, The semiconductor cooling module (3) is located between the flip-top of the flexible insulation bag (1) and the box cover (21) for drawing air from the inside of the insulation box (2) and cooling the drawn air before sending it back into the insulation box (2).

8. A temperature control module as described in claim 7, characterized in that: The semiconductor cooling module (3) includes a first insulation shell (31), an axial flow fan (32), a heat dissipation module (33), and a semiconductor cooling module (34). A mating hole (212) is provided in the middle area of ​​the cover (21). The first heat-insulating shell (31) is fixedly connected to the flip-top of the flexible heat-insulating bag (1) and the box lid (21). An air inlet pipe (311) is fixed in the middle area of ​​the bottom of the first heat-insulating shell (31), and an air outlet (312) is provided around the bottom. The air inlet pipe (311) passes through the mating hole (212) and communicates with the interior of the insulation box (2). The axial flow fan (32) is fixed inside the air inlet pipe (311). The top of the end plate (23) and the side plate (24) are provided with a vertical groove (201), the top of the groove (201) is connected to the air outlet (312) on the corresponding side, and the side is provided with a grid hole (202) that communicates with the inside of the heat preservation box (2). The heat dissipation module (33) is fixed to the top inside the first heat insulation shell (31), and its rear end passes through the side end of the first heat insulation shell (31) to form a ventilation end; The hot end of the semiconductor cooling module (34) is fixed inside the heat dissipation module (33), and the cold end is located above the air inlet pipe (311).

9. A temperature control module as described in claim 8, characterized in that: The heat dissipation module (33) includes a second insulation shell (331), a heat pipe (332), and an exhaust fan (333), wherein, The second insulation shell (331) is fixedly connected to the first insulation shell (31), and has an air inlet (3311) on one side of its rear end and an exhaust port (3312) on the other side. One end of the heat pipe (332) is fixedly connected to the hot end of the semiconductor cooling module (34), and the other end is located between the air inlet (3311) and the exhaust port (3312); The exhaust fan (333) is fixed inside the second insulation shell (331), and its air outlet is connected to the exhaust port (3312) from front to back.

10. An assembly method, using the temperature control module as described in claim 8, characterized in that: Includes the following steps: S1. Fix the semiconductor cooling module (3) to the bottom of the flip-top of the flexible insulation bag (1) with Velcro, then insert the air inlet pipe (311) into the mating hole (212) of the box cover (21), and fix the box cover (21) to the bottom of the semiconductor cooling module (3) with Velcro. S2. Fasten the flip-top of the flexible insulation bag (1) so that the box cover (21) is embedded inside the frame structure and the air outlet (312) is aligned with the corresponding groove (201).

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