Anti-condensation structure for wall surface of vehicle refrigerator

Abstract

An anti-condensation structure for a wall surface of a vehicle refrigerator, said structure comprising a vehicle refrigerator body (1) and a refrigerator cover (101). The vehicle refrigerator body (1) is provided with a refrigerator air port (14) and refrigerator fans (15); the movement of an airflow inside the vehicle refrigerator body (1) is driven by means of the operation of the refrigerator fans (15); the vehicle refrigerator body (1) is provided with refrigeration pipes (121) and a foaming layer; the inner walls of the side surfaces of the vehicle refrigerator body (1) are provided with metal heat conduction sheets (12); the back surfaces of the metal heat conduction sheets (12) are in contact with the refrigeration pipes (121); two transverse plates (13) are provided between every two metal heat conduction sheets (12); gaps are reserved between the transverse plates (13) and the inner walls; the flowing airflow is concentrated between the transverse plates (13) to form negative pressure regions, so that air on the surfaces of the transverse plates (13) flows between the transverse plates (13) through the gaps; the refrigeration pipes (121) are in contact with the metal heat conduction sheets (12), so that the temperature of the metal heat conduction sheets (12) is lower, and thus more condensation is formed; and convection is formed on the surfaces of the metal heat conduction sheets (12) by means of the movement of the airflow, so that condensation is rapidly evaporated.

Description

Anti-condensation structure on the wall of a car refrigerator Technical Field

[0001] This invention relates to the field of vehicle refrigerator technology, specifically to an anti-condensation structure for the wall of a vehicle refrigerator. Background Technology

[0002] A car refrigerator, as the name suggests, is a refrigerator specifically designed for use in a car, providing refrigeration or freezing services for the driver and passengers. These refrigerators are typically compact, easy to place, and can be powered by connecting to the car battery or cigarette lighter. Their main functions include preservation, refrigeration, and freezing, suitable for storing beverages, fruits, food, medicines, and other items requiring low-temperature storage. The advent of car refrigerators has greatly enhanced the travel experience for drivers and passengers. In the hot summer, car refrigerators can provide chilled drinks and fruits at any time, bringing a touch of coolness to the journey. On long trips, car refrigerators also ensure the freshness of food and medicines, safeguarding the health of travelers. Furthermore, car refrigerators are energy-efficient, environmentally friendly, and low-noise, creating a more comfortable and quiet driving environment. In short, car refrigerators are an indispensable part of modern automotive life, bringing great convenience and comfort to drivers and passengers.

[0003] The main reason for condensation on the walls of a car refrigerator is the condensation of water vapor caused by temperature differences. When the temperature of the cooling surface is lower than the dew point temperature of the air, water vapor in the air will condense into water droplets, forming condensation. In a car environment, due to the large temperature difference between the refrigerator wall and the surrounding air, especially in humid or high-temperature environments, condensation is more likely to occur. The water droplets formed by condensation may accumulate in the corners or gaps inside the refrigerator. Over time, this accumulation may cause the inside of the refrigerator to become damp, damaging the refrigerator's materials and structure, shortening its lifespan. Furthermore, if a large amount of condensation occurs at the refrigerator lid's sealing point, it will weaken the sealing effect, leading to poorer cooling performance, a significant waste of resources, and damage to the stored items inside. Technical issues

[0004] (a) Technical problem to be solved: In view of the shortcomings of the prior art, the present invention provides a wall anti-condensation structure for vehicle refrigerators, which has the advantage of reducing condensation in vehicle refrigerators and solves the problem of condensation in vehicle refrigerators. Technical solutions

[0005] (II) Technical Solution: To achieve the above-mentioned goal of reducing condensation in vehicle refrigerators, the present invention provides the following technical solution: a wall anti-condensation structure for a vehicle refrigerator, including a vehicle refrigerator body and a refrigerator cover. The vehicle refrigerator body is provided with a refrigerator air vent and a refrigerator fan. The operation of the refrigerator fan drives the movement of airflow inside the vehicle refrigerator body. The vehicle refrigerator body is provided with a refrigeration pipe and a foaming layer. Refrigerant is introduced into the refrigeration pipe to cool the vehicle refrigerator body. The refrigerator cover is attached to a suction plate on the outside of the storage area inside the vehicle refrigerator body. A metal heat-conducting sheet is provided on the inner wall of the side of the vehicle refrigerator body. The back of the metal heat-conducting sheet is in contact with the refrigeration pipe. The area on the inner wall of the vehicle refrigerator body without a metal heat-conducting sheet is in contact with the foaming layer. Two horizontal plates are provided between every two metal heat-conducting sheets. A gap is left between the horizontal plates and the inner wall. The flowing airflow is concentrated between the horizontal plates to form a negative pressure area, so that the air on the surface of the horizontal plates flows through the gap between the horizontal plates.

[0006] Vertical cylindrical columns are installed between the horizontal plates. Airflow passes through the columns, forming vortices that rotate inward on both sides. Heat is transferred through these vortices. Because the vortices rotate inward continuously, their flow speed is slow, resulting in longer contact time with the items stored in the refrigerator and a longer heat transfer time. In contrast, in a refrigerator without airflow, cold air is difficult to achieve a uniform distribution in every corner due to natural convection and diffusion. This leads to excessively low temperatures in areas near the cooling elements, while areas far from the cooling elements may still be relatively high. The vortex airflow, through forced convection, causes the cold air to move along the inner wall, forming a stable circulation and ensuring that the cold air can be evenly distributed to every corner of the refrigerator.

[0007] The refrigerator fan blows the airflow inside the vehicle refrigerator outwards, and the external airflow enters the refrigerator through the air vent, which is equipped with a dehumidifying screen.

[0008] The vehicle refrigerator is equipped with a cup holder on its upper part.

[0009] A partition is provided on the uppermost horizontal plate inside the vehicle refrigerator. The partition has an arc-shaped recess on its side and can be flipped upwards. The partition can be used to fix the items placed inside the refrigerator, so that they form a certain gap with the inner wall, which facilitates the movement of airflow and the formation of vortices for heat exchange. At the same time, the partition can be flipped upwards by means of pin connection, which can reduce obstruction when placing irregular items for cooling.

[0010] The suction plate is equipped with a suction plate air duct, which is connected to the internal storage area of ​​the vehicle refrigerator body. The suction plate air duct 111 can introduce cold air from inside the refrigerator into the door suction area, making the temperature at the suction area closer to the internal temperature of the refrigerator, reducing the temperature difference. Temperature difference is one of the main causes of condensation. The smaller the temperature difference, the lower the possibility of condensation. The design of the suction plate air duct is usually combined with the sealing structure of the refrigerator, so that the refrigerator door can be closed more tightly. At the same time, the air flow through the suction plate air duct can create a certain pressure difference, enhancing the sealing effect.

[0011] The interior storage area of ​​the vehicle refrigerator is equipped with partially inflated airbags at the corners. Although the airbags are not fully inflated, they still form an air layer. This air layer can reduce the exchange of heat between the inside and outside of the refrigerator to a certain extent. Furthermore, the airbags can move slightly with the airflow and temperature changes inside the refrigerator, preventing moisture from accumulating at the corners and condensing into ice. The design of the airbags can also reduce the collision noise caused by the vibration of items inside the refrigerator, thereby reducing the noise level of the refrigerator and providing a quieter operating environment.

[0012] The refrigerator fan is equipped with a dehumidifying screen. External airflow is blown into the interior of the vehicle refrigerator and flows out through the refrigerator vent. The refrigerator vent is connected to the condenser pipe, and the condenser pipe is connected to the water collection tank.

[0013] The condenser pipe extends along the same path as the refrigeration pipe and contacts the outer wall of the vehicle refrigerator body. Beneficial effects

[0014] (III) Beneficial Effects: Compared with the prior art, the present invention provides a wall anti-condensation structure for a vehicle refrigerator, which has the following beneficial effects:

[0015] 1. The anti-condensation structure on the wall of this car refrigerator connects the back of a metal heat-conducting fin to the refrigeration pipe. Refrigerant flows through the refrigeration pipe, and heat transfer lowers the temperature of the metal heat-conducting fin, cooling the interior of the car refrigerator. This creates a significant temperature difference between the metal heat-conducting fin and the adjacent inner wall. Condensation on the refrigerator wall is primarily caused by water vapor condensation due to this temperature difference. Most of the condensation inside the refrigerator concentrates on the surface of the metal heat-conducting fin. The refrigerator fan drives airflow within the car refrigerator, moving it towards the horizontal plates located on the inner side walls. Because there is a gap between the horizontal plates and the inner walls, the airflow on the surface of the metal heat-conducting fin flows between the horizontal plates above and below it. When this rapidly flowing air creates negative pressure in the condensation area, drier, warmer air from outside is attracted to this area. This directional convection not only increases the contact area between the condensation surface and the air but also reduces the temperature of the air by continuously replacing the air layer on the condensation surface. The partial pressure of water vapor enhances the driving force of evaporation. Simultaneously, the turbulent effect of convection helps disperse larger condensation droplets into smaller droplets or films, increasing the evaporation area and speed. Under negative pressure, the mean free path of air molecules increases, making it easier for water molecules to diffuse from the condensation surface into the air. This diffusion is strengthened by the negative pressure gradient, allowing water molecules on the condensation surface to enter the air more quickly, accelerating the evaporation process. Furthermore, airflow creates a uniform temperature distribution inside the refrigerator, preventing condensation caused by localized overcooling. Through continuous airflow circulation, heat inside the refrigerator is effectively transferred and dispersed, reducing temperature difference effects and thus lowering the risk of condensation. Under negative pressure, humid air is less likely to accumulate inside the refrigerator, preventing condensation on the refrigerator walls. Airflow carries humid air away from condensation-prone areas, ensuring the refrigerator remains dry. This dry environment not only benefits food preservation but also effectively extends the refrigerator's lifespan.

[0016] 2. The anti-condensation structure of this vehicle refrigerator's walls utilizes columns positioned between the horizontal panels. As airflow passes over these columns, the obstruction creates inward-rotating vortices on both sides, facilitating heat transfer. Compared to a refrigerator without airflow, where natural convection and diffusion make it difficult for cold air to achieve uniform distribution throughout the interior, resulting in areas near the cooling elements being too cold while areas further away remain too hot, the vortex airflow forces cold air to move along the inner wall through forced convection, forming a stable circulation and ensuring even distribution. This uniform temperature distribution helps maintain better food storage conditions and improves cooling efficiency. The vortex airflow is formed by the forced rotation of air within vortex tubes or specially designed channels. This rotation allows cold air to form a stable circulation path along the inner wall, preventing cold air accumulation in any one area. Furthermore, the vortex motion effectively prevents temperature stratification inside the refrigerator, maintaining overall temperature stability. Compared to moving airflow, while fast-moving airflow can accelerate air circulation inside the refrigerator, excessively fast airflow speeds may prevent cold air from fully penetrating the food. This is because fast-moving airflow forms a flowing air film on the food surface, hindering direct contact between the cold air and the food. In contrast, vortex airflow has a moderate speed, ensuring that the cold air fully penetrates the food, improving the cooling effect. The speed and flow path of vortex airflow are carefully designed to achieve optimal cooling performance. By controlling parameters such as the size, shape, and angle of the vortex tube or channel, the speed and flow path of the vortex airflow can be precisely adjusted. This design allows the vortex airflow to maintain a uniform distribution of cold air while ensuring that the cold air fully penetrates the food. Furthermore, the relatively smooth vortex airflow reduces noise generated during refrigerator operation, which is crucial for improving the user experience. The efficient cooling effect of vortex airflow means that the refrigerator can reach the set temperature faster and maintain a stable temperature, thereby reducing energy consumption. At the same time, vortex airflow technology does not require the use of additional refrigerant or cooling medium, making it more environmentally friendly.

[0017] 3. The anti-condensation structure of this vehicle refrigerator's wall surface utilizes a suction plate air duct connected to the internal storage area of ​​the refrigerator body. The door suction area is a sensitive zone where the internal and external environments meet; hot air from the outside easily penetrates through gaps and meets the cold air inside, creating a temperature difference. This temperature difference is a primary condition for condensation. With the suction plate air duct, cold air mixes with hot air at the suction area, forming a temperature transition zone. Due to the introduction and mixing of cold air, the temperature at the suction area is balanced, reducing the temperature difference and thus lowering the likelihood of condensation. This temperature balancing effect not only affects the suction area... It can also have a positive impact on the temperature distribution inside the refrigerator, improving the overall temperature stability of the refrigerator. The design of the suction plate air duct is usually combined with the refrigerator's sealing structure. By controlling the size and position of the suction plate air duct, the refrigerator door can fit more tightly when closed. At the same time, the airflow through the suction plate air duct can create a certain pressure difference, enhancing the sealing performance of the refrigerator door. The optimized sealing effect effectively prevents hot and humid external air from entering the refrigerator through the suction point, reducing the increase of humidity inside the refrigerator. This helps maintain a low temperature and low humidity environment inside the refrigerator, reducing the formation of condensation. In addition, good sealing performance can also reduce the leakage of cold air inside the refrigerator, improving the refrigerator's energy efficiency.

[0018] 4. The anti-condensation structure of the vehicle refrigerator wall utilizes a dehumidifying screen installed inside the refrigerator fan. External airflow is blown into the interior of the vehicle refrigerator body through the refrigerator fan and flows out through the refrigerator vent. The refrigerator vent is connected to the condenser pipe, which is connected to the water collection tank. The condenser pipe and the refrigeration pipe have the same extension path and are in contact with the outer wall of the vehicle refrigerator body. Due to the evaporation of condensation inside the refrigerator, the air entering the refrigerator vent contains a certain amount of water vapor. When the water vapor enters the condenser pipe, due to the reduced space and increased air pressure, the gaseous water condenses into liquid water droplets. Finally, the liquid water droplets are collected in the water collection tank. At the same time, the condenser pipe, in contact with the outer wall of the vehicle refrigerator body, generates a certain amount of heat when the water vapor condenses, reducing the cooling effect of the refrigeration pipe on the outer wall of the refrigerator, thus preventing condensation from forming on the outer wall of the refrigerator. Attached Figure Description

[0019] Figure 1 is a schematic diagram of the structure of the present invention;

[0020] Figure 2 is a side view of the structure of the present invention;

[0021] Figure 3 is a top view of the structure of the present invention;

[0022] Figure 4 is a schematic diagram of airflow at the structural column of the present invention;

[0023] Figure 5 is a cross-sectional schematic diagram of Embodiment 1 of the present invention;

[0024] Figure 6 is a cross-sectional schematic diagram of Embodiment 2 of the present invention;

[0025] Figure 7 is a detailed schematic diagram of the air duct of the suction plate of the present invention;

[0026] Figure 8 is a schematic diagram of the refrigerator air vent of the present invention;

[0027] Figure 9 is a detailed schematic diagram of the metal heat-conducting sheet and column of the present invention.

[0028] In the diagram: 1. Car refrigerator body; 11. Suction plate; 12. Metal heat-conducting plate; 13. Horizontal plate; 14. Refrigerator air vent; 15. Refrigerator fan; 101. Refrigerator lid; 102. Cup holder; 111. Suction plate air duct; 121. Refrigerant pipe; 122. Condenser pipe; 131. Column; 201. Partition; 202. Water collection tank. Embodiments of the present invention

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Example 1: Please refer to Figures 1, 5, and 7-9. The anti-condensation structure of the vehicle refrigerator wall includes a vehicle refrigerator body 1 and a refrigerator cover 101. The vehicle refrigerator body 1 is provided with a refrigerator air vent 14 and a refrigerator fan 15. The operation of the refrigerator fan 15 drives the airflow inside the vehicle refrigerator body 1. The vehicle refrigerator body 1 is provided with a cooling pipe 121 and a foam layer. Refrigerant is introduced into the cooling pipe 121 to cool the inside of the vehicle refrigerator body 1. The refrigerator cover 101 is attracted to a suction plate 11 on the outside of the storage area inside the vehicle refrigerator body 1. A metal heat-conducting sheet 12 is provided on the inner wall of the side of the vehicle refrigerator body 1. The back of the metal heat-conducting sheet 12 contacts the cooling pipe 121. The area on the inner wall of the vehicle refrigerator body 1 without the metal heat-conducting sheet 12 is in contact with the foam layer. Two horizontal plates 13 are provided between every two metal heat-conducting sheets 12. A gap is left between the horizontal plates 13 and the inner wall. The flowing air is concentrated between the horizontal plates 13, forming a negative pressure area, causing air on the surface of the horizontal plates 13 to flow through the gap between the horizontal plates 13. A vertical cylindrical column 131 is provided between the horizontal plates 13. Airflow passing through the column 131 forms a vortex that rotates inwards on both sides. At the junction of the back of the metal heat-conducting sheet 12 and the cooling pipe 121, refrigerant flows inside the cooling pipe 121. Heat transfer occurs through the refrigerant... This design causes the metal heat-conducting plate 12 to lower its temperature, thus cooling the interior of the vehicle refrigerator body 1. Because the non-metallic heat-conducting plate 12 area on the inner wall of the refrigerator is not in contact with the cooling pipe 121 and is filled with a foam layer on its back, a significant temperature difference is created between the metal heat-conducting plate 12 and the adjacent inner wall. The condensation on the wall of the vehicle refrigerator is mainly caused by water vapor condensation due to the temperature difference. When the temperature of the cooling surface is lower than the dew point temperature in the air, the water vapor in the air will condense into water droplets, forming condensation. This causes the condensation inside the refrigerator to concentrate on the surface of the metal heat-conducting plate 12. Through the operation of the refrigerator fan 15, the airflow inside the vehicle refrigerator body 1 is driven to move towards the side... The airflow on the horizontal plates 13 on the inner wall flows, and because there is a gap between the horizontal plates 13 and the inner wall, the airflow on the surface of the metal heat-conducting plate 12 flows between the horizontal plates 13 above and below it. The fast-flowing airflow on the surface causes the condensation on the metal heat-conducting plate 12 to be blown away and evaporated. Through evaporation, the internal temperature is lowered because liquid evaporation requires the absorption of heat. And through the airflow moving between the horizontal plates 13, as shown in Figure 4, there are columns 131 set between the horizontal plates 13. When the airflow flows through the columns 131, due to their obstruction, inward rotating vortices are formed on both sides of the columns 131, and heat is transferred through the vortices to cool the items stored in the refrigerator.

[0031] The refrigerator fan 15 blows the airflow inside the vehicle refrigerator body 1 outwards when it operates. The external airflow enters the interior through the refrigerator air vent 14. The refrigerator air vent 14 is equipped with a dehumidifying screen. After the refrigerator fan 15 blows the internal air outwards, it reduces the internal air pressure, allowing the air to enter the interior through the refrigerator air vent 14 and form a flow. It can also carry out the cold air during the cooling process, thus cooling the external environment while the refrigerator is cooling.

[0032] A cup holder 102 is provided on the top of the vehicle refrigerator body 1.

[0033] A partition 201 is provided on the uppermost horizontal plate 13 inside the vehicle refrigerator body 1. The partition 201 has an arc-shaped recess on its side and can be flipped upward. The partition 201 can be used to fix the items placed inside the refrigerator, so that they form a certain gap with the inner wall, which facilitates the movement of airflow to form vortices for heat exchange. At the same time, the partition 201 can be flipped upward by means of pin connection, which can reduce obstruction when irregular items are placed for cooling.

[0034] The suction plate 11 is provided with a suction plate air duct 111, which is connected to the internal storage area of ​​the vehicle refrigerator body 1. The suction plate air duct 111 can introduce cold air from inside the refrigerator into the door suction area, making the temperature at the suction area closer to the internal temperature of the refrigerator, reducing the temperature difference. Temperature difference is one of the main causes of condensation. The smaller the temperature difference, the lower the possibility of condensation. The design of the suction plate air duct 111 is usually combined with the sealing structure of the refrigerator, so that the refrigerator door can be closed more tightly. At the same time, the air flow through the suction plate air duct 111 can create a certain pressure difference, enhancing the sealing effect.

[0035] The interior storage area of ​​the vehicle refrigerator body 1 is equipped with partially inflated airbags at the corners. Although the airbags are not fully inflated, they can still form an air layer. This air layer can reduce the exchange of heat between the inside and outside of the refrigerator to a certain extent. Furthermore, the airbags can move slightly with the airflow and temperature changes inside the refrigerator, preventing moisture from accumulating at the corners and condensing into ice. The design of the airbags can also reduce the collision noise caused by the vibration of items inside the refrigerator, thereby reducing the noise level of the refrigerator and providing a quieter operating environment.

[0036] Example 2: Please refer to Figures 1, 6, and 7-9. The anti-condensation structure of the vehicle refrigerator wall includes a vehicle refrigerator body 1 and a refrigerator cover 101. The vehicle refrigerator body 1 is provided with a refrigerator air vent 14 and a refrigerator fan 15. The operation of the refrigerator fan 15 drives the airflow inside the vehicle refrigerator body 1. The vehicle refrigerator body 1 is provided with a cooling pipe 121 and a foam layer. Refrigerant is introduced into the cooling pipe 121 to cool the inside of the vehicle refrigerator body 1. The refrigerator cover 101 is attracted to the suction plate 11 on the outside of the storage area inside the vehicle refrigerator body 1. A metal heat-conducting sheet 12 is provided on the inner wall of the side of the vehicle refrigerator body 1. The back of the metal heat-conducting sheet 12 contacts the cooling pipe 121. The area on the inner wall of the vehicle refrigerator body 1 without the metal heat-conducting sheet 12 contacts the foam layer. Two horizontal plates 13 are provided between every two metal heat-conducting sheets 12, with gaps between the horizontal plates 13 and the inner wall. The flowing air is concentrated between the horizontal plates 13, forming a negative pressure area, causing air on the surface of the horizontal plates 13 to flow through the gaps between the horizontal plates 13. Vertical cylindrical columns 131 are provided between the horizontal plates 13, and the airflow passing through the columns 131 forms vortices that rotate inwards on both sides. At the junction of the back of the metal heat-conducting sheet 12 and the cooling pipe 121, refrigerant flows inside the cooling pipe 121, and heat is transferred through the pipe. This causes the metal heat-conducting plate 12 to lower its temperature, thus cooling the interior of the vehicle refrigerator body 1. Because the non-metallic heat-conducting plate 12 area on the inner wall of the refrigerator is not in contact with the cooling pipe 121, and the back is filled with a foam layer, a significant temperature difference is created between the metal heat-conducting plate 12 and the adjacent inner wall. The condensation on the wall of the vehicle refrigerator is mainly caused by water vapor condensation due to the temperature difference. When the temperature of the cooling surface is lower than the dew point temperature in the air, the water vapor in the air will condense into water droplets, forming condensation. This causes the condensation inside the refrigerator to concentrate on the surface of the metal heat-conducting plate 12. Through the operation of the refrigerator fan 15, the airflow inside the vehicle refrigerator body 1 is driven to move towards the side inner wall. The horizontal plates 13 on the wall flow, and because there is a gap between the horizontal plates 13 and the inner wall, the airflow on the surface of the metal heat-conducting plate 12 flows between the horizontal plates 13 above and below it. The fast-flowing airflow on the surface causes the condensation on the metal heat-conducting plate 12 to be blown away and evaporated. Through evaporation, the internal temperature is lowered because liquid evaporation requires the absorption of heat. And through the airflow moving between the horizontal plates 13, as shown in Figure 4, there are columns 131 set between the horizontal plates 13. When the airflow flows through the columns 131, due to their obstruction, inward rotating vortices are formed on both sides of the columns 131, and heat is transferred through the vortices to cool the items stored in the refrigerator.

[0037] A cup holder 102 is provided on the top of the vehicle refrigerator body 1.

[0038] A partition 201 is provided on the uppermost horizontal plate 13 inside the vehicle refrigerator body 1. The partition 201 has an arc-shaped recess on its side and can be flipped upward. The partition 201 can be used to fix the items placed inside the refrigerator, so that they form a certain gap with the inner wall, which facilitates the movement of airflow to form vortices for heat exchange. At the same time, the partition 201 can be flipped upward by means of pin connection, which can reduce obstruction when irregular items are placed for cooling.

[0039] The suction plate 11 is provided with a suction plate air duct 111, which is connected to the internal storage area of ​​the vehicle refrigerator body 1. The suction plate air duct 111 can introduce cold air from inside the refrigerator into the door suction area, making the temperature at the suction area closer to the internal temperature of the refrigerator, reducing the temperature difference. Temperature difference is one of the main causes of condensation. The smaller the temperature difference, the lower the possibility of condensation. The design of the suction plate air duct 111 is usually combined with the sealing structure of the refrigerator, so that the refrigerator door can be closed more tightly. At the same time, the air flow through the suction plate air duct 111 can create a certain pressure difference, enhancing the sealing effect.

[0040] The interior storage area of ​​the vehicle refrigerator body 1 is equipped with partially inflated airbags at the corners. Although the airbags are not fully inflated, they can still form an air layer. This air layer can reduce the exchange of heat between the inside and outside of the refrigerator to a certain extent. Furthermore, the airbags can move slightly with the airflow and temperature changes inside the refrigerator, preventing moisture from accumulating at the corners and condensing into ice. The design of the airbags can also reduce the collision noise caused by the vibration of items inside the refrigerator, thereby reducing the noise level of the refrigerator and providing a quieter operating environment.

[0041] The refrigerator fan 15 is equipped with a dehumidifying screen. External airflow is blown into the interior of the vehicle refrigerator body 1 through the refrigerator fan 15 and flows out through the refrigerator vent 14. The refrigerator vent 14 is connected to the condenser pipe 122, which is connected to the water collection tank 202. The condenser pipe 122 and the refrigeration pipe 121 have the same extension path and are in contact with the outer wall of the vehicle refrigerator body 1. Due to the evaporation of condensation inside the refrigerator, the air entering the refrigerator vent 14 contains a certain amount of water vapor. When the water vapor enters the condenser pipe 122, due to the reduced space and increased air pressure, the gaseous water condenses into liquid water droplets. Finally, the liquid water droplets are passed into the water collection tank 202 for collection and treatment. At the same time, the condenser pipe 122 is in contact with the outer wall of the vehicle refrigerator body 1. When the water vapor condenses, it will generate a certain amount of heat, reducing the cooling effect of the refrigeration pipe 121 on the outer wall of the refrigerator, causing condensation to form on the outer wall of the refrigerator.

[0042] Working principle: A metal heat-conducting fin 12 is provided on the inner wall of the side of the vehicle refrigerator body 1. The back of the metal heat-conducting fin 12 is connected to the refrigerant pipe 121. Refrigerant flows inside the refrigerant pipe 121. Through heat transfer, the metal heat-conducting fin 12 lowers its temperature, thus cooling the interior of the vehicle refrigerator body 1. Because the non-metallic heat-conducting fin 12 area on the inner wall of the refrigerator is not in contact with the refrigerant pipe 121, and the back is filled with a foam layer, a significant temperature difference is created between the metal heat-conducting fin 12 and the adjacent inner wall. The condensation on the wall of the vehicle refrigerator is mainly caused by water vapor condensation due to the temperature difference. When the temperature of the cooling surface is lower than the dew point temperature of the air, the water vapor in the air will condense into water droplets. Condensation forms inside the refrigerator, with most of it concentrated on the surface of the metal heat-conducting plate 12. A small amount of condensation forms on the adjacent inner walls. The refrigerator fan 15 drives airflow within the refrigerator body 1, directing it towards the horizontal plates 13 located on the side inner walls. Because there is a gap between the horizontal plates 13 and the inner walls, the airflow on the surface of the metal heat-conducting plate 12 flows between the horizontal plates 13 above and below it. This rapid airflow disperses and evaporates the condensation on the metal heat-conducting plate 12. This evaporation lowers the internal temperature, as liquid evaporation requires heat absorption. Furthermore, the airflow moving between the horizontal plates 13... A column 131 is installed in the refrigerator. When airflow passes through the column 131, due to its obstruction, inwardly rotating vortices are formed on both sides of the column 131, and heat transfer occurs through these vortices. Because the vortices rotate inward continuously, their flow speed is slow, resulting in longer contact time with the items stored inside the refrigerator and a longer heat transfer time. In contrast, inside a refrigerator without airflow, cold air is difficult to achieve uniform distribution in every corner due to natural convection and diffusion. This leads to areas near the cooling elements being too cold, while areas far from the cooling elements may still be too hot. The vortex airflow, through forced convection, causes the cold air to move along the inner wall, forming a stable circulation and ensuring that the cold air is evenly distributed. The vortex airflow, distributed throughout every corner of the refrigerator, is formed by the rotational motion of air forced into vortex tubes or specially designed channels. This rotational motion allows cold air to form a stable circulation path along the inner wall, preventing cold air from accumulating in a certain area. Compared to fast-moving airflow, the speed of the vortex airflow is moderate, ensuring that the cold air fully penetrates into the food and improves the cooling effect. Although fast-moving airflow can accelerate the air circulation inside the refrigerator, excessively fast airflow speed may prevent the cold air from fully penetrating into the food. This is because fast-moving airflow will form a flowing air film on the surface of the food, hindering the direct contact between the cold air and the food.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0044] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wall anti-condensation structure for a vehicle refrigerator, comprising a vehicle refrigerator body (1) and a refrigerator cover (101), wherein the vehicle refrigerator body (1) is provided with a refrigerator air vent (14) and a refrigerator fan (15), and the operation of the refrigerator fan (15) drives the movement of airflow inside the vehicle refrigerator body (1), wherein the vehicle refrigerator body (1) is provided with a refrigeration pipe (121) and a foaming layer, wherein refrigerant is introduced into the refrigeration pipe (121) to cool the inside of the vehicle refrigerator body (1), and the refrigerator cover (101) is attached to a suction plate (11) on the outside of the storage area inside the vehicle refrigerator body (1), characterized in that: The inner wall of the vehicle refrigerator body (1) is provided with a metal heat-conducting sheet (12). The back of the metal heat-conducting sheet (12) is in contact with the refrigeration pipe (121). The area on the inner wall of the vehicle refrigerator body (1) without the metal heat-conducting sheet (12) is in contact with the foam layer. Two horizontal plates (13) are provided between every two metal heat-conducting sheets (12). There is a gap between the horizontal plate (13) and the inner wall. The flowing air is concentrated between the horizontal plates (13) to form a negative pressure area, so that the air on the surface of the horizontal plate (13) flows between the horizontal plates (13) through the gap.

2. The anti-condensation structure of the vehicle-mounted refrigerator wall according to claim 1, characterized in that: A vertical cylindrical column (131) is provided between the horizontal plates (13), and the airflow forms an inward rotating vortex on both sides as it flows through the column (131).

3. The anti-condensation structure of the vehicle-mounted refrigerator wall according to claim 1, characterized in that: The refrigerator fan (15) blows the airflow inside the vehicle refrigerator body (1) outward, and the external airflow enters the interior through the refrigerator air vent (14), which is equipped with a dehumidifying mesh.

4. The anti-condensation structure of the vehicle refrigerator wall according to claim 1, characterized in that: The vehicle refrigerator body (1) is provided with a cup holder (102) on top.

5. The anti-condensation structure of the vehicle-mounted refrigerator wall according to claim 1, characterized in that: A partition (201) is provided on the uppermost horizontal plate (13) inside the vehicle refrigerator body (1). The partition (201) has an arc-shaped recess on its side and can be flipped upward.

6. The anti-condensation structure of the vehicle-mounted refrigerator wall according to claim 1, characterized in that: The suction plate (11) is provided with a suction plate air duct (111), which is connected to the internal storage area of ​​the vehicle refrigerator body (1).

7. The anti-condensation structure of the vehicle-mounted refrigerator wall according to claim 1, characterized in that: An airbag that is not fully inflated is provided at the corner of the internal storage area of ​​the vehicle refrigerator body (1).

8. The anti-condensation structure of the vehicle-mounted refrigerator wall according to claim 1, characterized in that: The refrigerator fan (15) is equipped with a dehumidifying screen. External airflow is blown into the interior of the vehicle refrigerator body (1) through the refrigerator fan (15) and flows out through the refrigerator air vent (14). The refrigerator air vent (14) is connected to the condenser pipe (122), and the condenser pipe (122) is connected to the water collection tank (202).

9. The anti-condensation structure of the vehicle-mounted refrigerator wall according to claim 8, characterized in that: The condenser pipe (122) has the same extension path as the refrigeration pipe (121) and is in contact with the outer wall of the vehicle refrigerator body (1).

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