Self-adapting temperature adjusting device for cold chain transfer box

Abstract

The utility model discloses a kind of self-adapting temperature regulating devices for cold chain transfer box, including box, box cover, adjusting chamber and temperature sensing element, the inside wall of the box is evenly embedded with temperature sensing element, and the top of the one side of the box is provided with controller, the top of the box is provided with box cover, and the bottom of the box cover is provided with adjusting chamber, the top inside the adjusting chamber is provided with heat plate, and the bottom of the heat plate is evenly distributed with semiconductor refrigeration piece, the top of the heat plate is evenly distributed with miniature heat dissipation fin, the bottom inside the adjusting chamber is provided with 2 groups of fan, and the bottom of the adjusting chamber is provided with air-equalizing grid. The utility model is equipped with box, temperature sensing element, box cover, adjusting chamber, semiconductor refrigeration piece, heat plate, miniature heat dissipation fin, fan and air outlet grid, can more efficiently handle the heat generated by semiconductor refrigeration piece, avoid that hot end temperature is too high to influence refrigeration effect, simultaneously make temperature uniform.

Description

Technical Field

[0001] This utility model relates to the field of temperature regulation technology for transfer boxes, specifically an adaptive temperature regulation device for cold chain transfer boxes. Background Technology

[0002] Cold chain transfer boxes are specialized containers used to maintain goods at a constant or low temperature during transportation. They ensure the safe transport of temperature-sensitive items (such as medicines, vaccines, and fresh food) within a specific temperature range through a built-in temperature control system.

[0003] Temperature regulation in cold chain transport boxes is generally achieved through thermoelectric cooling chips, temperature sensing elements, and controllers. However, when thermoelectric cooling chips are working, the hot end generates a lot of heat. Without an efficient heat dissipation system, the temperature of the hot end will rise rapidly, resulting in a significant decrease in cooling efficiency. Moreover, relying solely on the thermoelectric cooling chip, it is difficult to achieve effective air circulation within the box. Because the air cannot flow evenly, there will be significant temperature differences in different areas within the transport box, leading to localized overheating or undercooling. Utility Model Content

[0004] The purpose of this invention is to provide an adaptive temperature control device for cold chain transfer boxes to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an adaptive temperature control device for a cold chain transfer box, comprising a box body, a box cover, a control chamber, and temperature sensing elements. Temperature sensing elements are uniformly embedded in the inner side wall of the box body, and a controller is provided at the top of one side of the box body. A box cover is provided at the top of the box body, and a control chamber is provided at the bottom of the box cover. A heat spreader is provided at the top of the control chamber, and semiconductor cooling chips are uniformly distributed at the bottom of the heat spreader. Micro heat dissipation fins are uniformly distributed at the top of the heat spreader. Two sets of fans are provided at the bottom of the control chamber, and a wind distribution grid is provided at the bottom of the control chamber.

[0006] Preferably, the side of the semiconductor cooling chip closest to the heat spreader is connected to the heat spreader via thermal grease.

[0007] Preferably, a drive shaft is provided in the adjustment chamber above the fan, and a first drive motor is fixed on one side of the adjustment chamber, with the output end of the first drive motor connected to the drive shaft.

[0008] Preferably, both ends of the drive shaft are provided with driving gears, and the top of the fan is provided with driven gears that mesh with the driving gears via rollers.

[0009] Preferably, a ventilation opening is provided at the center of the box cover, and a dustproof net is provided inside the ventilation opening.

[0010] Preferably, a sealing plate is provided on the cover above the vent, a lead screw is provided on one side of the cover via a bracket, and a driving block is sleeved on the lead screw. The driving block is connected to the sealing plate via a connector.

[0011] Preferably, a second drive motor is fixed on the cover at one end of the lead screw, and the output end of the second drive motor is connected to the lead screw.

[0012] Preferably, a guide rod is provided on the side of the box cover away from the lead screw, a guide sleeve is fitted on the guide rod, and the guide sleeve is connected to the sealing plate through a connector.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: The adaptive temperature regulation device of this cold chain transfer box is equipped with a box body, a temperature sensing element, a box cover, a regulating chamber, a semiconductor cooling chip, a heat spreader, micro heat dissipation fins, a fan, and an air outlet grille. The temperature sensing element monitors the temperature change inside the box in real time. When the temperature inside the box is higher than the preset upper limit, the controller controls the semiconductor cooling chip to start. The cold side of the cooling chip absorbs heat from the air inside the box, which lowers the temperature of the surrounding air. The hot side generates heat, which is transferred to the heat spreader through thermal grease. The heat spreader conducts the heat to the micro heat dissipation fins vertically welded on it, increasing the heat dissipation area and accelerating the dissipation of heat to the surrounding air. This can more efficiently handle the heat generated by the semiconductor cooling chip and avoid the hot end temperature from being too high, which would affect the cooling effect. At the same time, the fan runs and blows the cold air generated by the cold side of the cooling chip to all corners inside the box, making the temperature uniform. By adaptively regulating the temperature inside the box, it can meet the diverse temperature control needs of different transportation scenarios and items. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a frontal cross-sectional view of the present invention.

[0016] Figure 2 This is a schematic cross-sectional view of the regulating chamber of this utility model;

[0017] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0018] Figure 4 For the present utility model Figure 2Enlarged structural diagram at point B;

[0019] Figure 5 This is a top view of the box cover structure of this utility model.

[0020] In the diagram: 1. Housing; 2. Cover; 3. Adjustment chamber; 4. Temperature sensing element; 5. Controller; 6. Lead screw; 7. Drive block; 8. Sealing plate; 9. First drive motor; 10. Semiconductor cooling chip; 11. Miniature heat sink fins; 12. Drive shaft; 13. Air distribution grille; 14. Heat dissipation plate; 15. Thermal grease; 16. Drive gear; 17. Driven gear; 18. Fan; 19. Vent; 20. Second drive motor; 21. Guide rod; 22. Guide sleeve. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0022] Please see Figure 1-5 The present invention provides an embodiment of an adaptive temperature control device for a cold chain transfer box, comprising a box body 1, a box cover 2, a control chamber 3, and a temperature sensing element 4. The temperature sensing element 4 is uniformly embedded in the inner wall of the box body 1, and a controller 5 is provided at the top of one side of the box body 1. The temperature sensing element 4 is uniformly embedded in the inner wall of the box body 1 to monitor the temperature data inside the box in real time and transmit the data to the controller 5. The controller 5 receives the temperature data transmitted by the temperature sensing element 4 and compares it with the preset upper limit of temperature.

[0023] The top of the housing 1 is provided with a cover 2, and the bottom of the cover 2 is provided with an adjustment chamber 3. The top of the adjustment chamber 3 is provided with a heat spreader 14, and the bottom of the heat spreader 14 is evenly distributed with semiconductor cooling chips 10.

[0024] If the temperature inside chamber 1 is lower than the preset upper limit, the device maintains the current state and continues to monitor. If the temperature inside chamber 1 is higher than the preset upper limit, the controller 5 issues a command to start the semiconductor cooling chip 10. After receiving the command, the semiconductor cooling chip 10 starts, and its cold surface absorbs heat from the air inside chamber 1, causing the air temperature to drop, while its hot surface generates heat.

[0025] The side of the semiconductor cooling chip 10 closest to the heat spreader 14 is connected to the heat spreader 14 by thermal grease 15. The thermal grease 15 fills the micro gaps on the contact surface, eliminates air gaps, and allows the heat from the hot end of the semiconductor cooling chip 10 to be quickly conducted to the heat spreader 14, thereby improving the cooling efficiency.

[0026] The top of the heat spreader 14 is evenly distributed with micro heat dissipation fins 11, which increase the heat dissipation area and accelerate the dissipation of heat to the surrounding air.

[0027] Two sets of fans 18 are installed at the bottom of the regulating chamber 3, and a wind distribution grid 13 is installed at the bottom of the regulating chamber 3.

[0028] A drive shaft 12 is installed in the adjustment chamber 3 above the fan 18, and a first drive motor 9 is fixed on one side inside the adjustment chamber 3. The output end of the first drive motor 9 is connected to the drive shaft 12.

[0029] Both ends of the drive shaft 12 are provided with drive gears 16, and the top of the fan 18 is provided with driven gears 17 that mesh with the drive gears 16 via rollers.

[0030] The first drive motor 9 starts, and its output end drives the transmission shaft 12 to rotate. The drive gears 16 at both ends of the transmission shaft 12 rotate accordingly. The driven gear 17 meshing with the drive gear 16 drives the fan 18 to rotate, blowing the cold air generated by the cold surface of the semiconductor cooling chip 10 into all corners of the chamber 1 through the air distribution grid 13, so as to achieve uniform temperature inside the chamber. In addition, the first drive motor 9 drives two sets of fans 18 to ensure consistent wind speed and direction (the fans 18 drive the air to form internal convection by running at low speed).

[0031] A vent 19 is provided in the center of the lid 2, and a dustproof net is installed inside the vent 19;

[0032] A sealing plate 8 is provided on the box cover 2 above the vent 19. A screw rod 6 is provided on one side of the box cover 2 via a bracket, and a drive block 7 is sleeved on the screw rod 6. The drive block 7 is connected to the sealing plate 8 via a connector.

[0033] A second drive motor 20 is fixed on the cover 2 at one end of the lead screw 6, and the output end of the second drive motor 20 is connected to the lead screw 6;

[0034] When enhanced ventilation and heat dissipation are needed, the second drive motor 20 starts, driving the lead screw 6 to rotate. The drive block 7 on the lead screw 6 drives the sealing plate 8 to move through the connecting piece, opening the vent 19 so that heat can be quickly discharged. If heat accumulates rapidly inside the box, even if the semiconductor cooling chip 10 and the internal heat dissipation system work at full capacity, the temperature inside the box will continue to rise to near or exceed the preset upper limit. At this time, opening the vent 19 can enhance air circulation, quickly discharge excess heat, and improve the overall heat dissipation efficiency. When ventilation is not needed, the second drive motor 20 rotates in the opposite direction, driving the sealing plate 8 to close the vent 19.

[0035] A guide rod 21 is provided on the side of the box cover 2 away from the lead screw 6. A guide sleeve 22 is fitted on the guide rod 21, and the guide sleeve 22 is connected to the sealing plate 8 through a connector. When the sealing plate 8 moves, it guides and limits the movement, so that the sealing plate 8 moves stably.

[0036] The specific models and specifications of the temperature sensing element 4, controller 5, semiconductor cooling chip 10, first drive motor 9 and second drive motor 20 need to be determined by selection calculation based on the specifications and parameters of the device. The selection calculation method is existing technology, so it will not be described in detail.

[0037] Working Principle: In this embodiment, the temperature sensing element 4 is uniformly embedded in the inner wall of the housing 1 to monitor the temperature data inside the housing in real time and transmit the data to the controller 5. The controller 5 receives the temperature data transmitted by the temperature sensing element 4 and compares it with the preset upper temperature limit. If the temperature inside the housing 1 is lower than the preset upper limit, the device maintains its current state and continues monitoring. If the temperature inside the housing 1 is higher than the preset upper limit, the controller 5 issues a command to start the semiconductor cooling chip 10. Upon receiving the command, the semiconductor cooling chip 10 starts, its cold side absorbs heat from the air inside the housing 1, lowering the air temperature, and its hot side generates heat. The heat is transferred to the heat spreader 14 through the thermal grease 15 for heat conduction and dissipation. The heat spreader 14 receives the heat transferred from the hot side of the semiconductor cooling chip 10, distributes the heat evenly through its own characteristics, and conducts it to the micro-particles evenly distributed at the top. The miniature heat dissipation fins 11 increase the heat dissipation area and accelerate the dissipation of heat to the surrounding air. At the same time, the first drive motor 9 starts, and its output end drives the transmission shaft 12 to rotate. The drive gears 16 at both ends of the transmission shaft 12 rotate accordingly. The driven gears 17 meshing with the drive gears 16 drive the fan 18 to rotate, blowing the cold air generated by the cold surface of the semiconductor cooling chip 10 to all corners of the box 1 through the air distribution grid 13, so as to achieve uniform temperature inside the box. When it is necessary to enhance ventilation and heat dissipation, the second drive motor 20 starts, driving the lead screw 6 to rotate. The drive block 7 on the lead screw 6 drives the sealing plate 8 to move through the connecting piece, opening the vent 19 so that heat can be quickly discharged. When ventilation is not required, the second drive motor 20 rotates in the opposite direction, driving the sealing plate 8 to close the vent 19. The guide rod 21 and the guide sleeve 22 cooperate to ensure the stable movement of the sealing plate 8.

[0038] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0039] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0040] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0041] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An adaptive temperature control device for a cold chain transfer box, characterized in that, The device includes a housing (1), a cover (2), an adjustment chamber (3), and a temperature sensing element (4). The temperature sensing element (4) is evenly embedded in the inner wall of the housing (1), and a controller (5) is provided at the top of one side of the housing (1). The cover (2) is provided at the top of the housing (1), and an adjustment chamber (3) is provided at the bottom of the cover (2). A heat spreader (14) is provided at the top of the adjustment chamber (3), and semiconductor cooling chips (10) are evenly distributed at the bottom of the heat spreader (14). Micro heat dissipation fins (11) are evenly distributed at the top of the heat spreader (14). Two sets of fans (18) are provided at the bottom of the adjustment chamber (3), and a wind distribution grid (13) is provided at the bottom of the adjustment chamber (3).

2. The adaptive temperature control device for a cold chain transfer box according to claim 1, characterized in that: The side of the semiconductor cooling chip (10) closest to the heat spreader (14) is connected to the heat spreader (14) via thermal grease (15).

3. The adaptive temperature control device for a cold chain transfer box according to claim 1, characterized in that: A drive shaft (12) is provided in the adjustment chamber (3) above the fan (18), and a first drive motor (9) is fixed on one side inside the adjustment chamber (3). The output end of the first drive motor (9) is connected to the drive shaft (12).

4. The adaptive temperature control device for a cold chain transfer box according to claim 3, characterized in that: Both ends of the drive shaft (12) are provided with drive gears (16), and the top of the fan (18) is provided with driven gears (17) that mesh with the drive gears (16) via rollers.

5. The adaptive temperature control device for a cold chain transfer box according to claim 1, characterized in that: A vent (19) is provided in the center of the box cover (2), and a dustproof net is provided inside the vent (19).

6. The adaptive temperature control device for a cold chain transfer box according to claim 5, characterized in that: A sealing plate (8) is provided on the box cover (2) above the vent (19). A screw rod (6) is provided on one side of the box cover (2) through a bracket, and a drive block (7) is sleeved on the screw rod (6). The drive block (7) is connected to the sealing plate (8) through a connector.

7. The adaptive temperature control device for a cold chain transfer box according to claim 6, characterized in that: A second drive motor (20) is fixed on the cover (2) at one end of the lead screw (6), and the output end of the second drive motor (20) is connected to the lead screw (6).

8. The adaptive temperature control device for a cold chain transfer box according to claim 6, characterized in that: The box cover (2) is provided with a guide rod (21) on the side away from the lead screw (6). A guide sleeve (22) is fitted on the guide rod (21), and the guide sleeve (22) is connected to the sealing plate (8) through a connector.

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