Anti-condensation structure of the wall of the car refrigerator

Abstract

The invention relates to the technical field of vehicle refrigerators, and discloses a wall anti-condensation structure of a vehicle refrigerator, comprising a vehicle refrigerator body and a refrigerator cover, wherein the vehicle refrigerator body is provided with a refrigerator air outlet and a refrigerator fan, and the movement of airflow inside the vehicle refrigerator body is driven by the operation of the refrigerator fan, a refrigeration pipe and a foaming layer are provided in the vehicle refrigerator body, a metal heat conductive sheet is provided on the inner wall of the side of the vehicle refrigerator body, the back of the metal heat conductive sheet is in contact with the refrigeration pipe, two transverse plates are provided between every two of the metal heat conductive sheets, and a gap is left between the transverse plates and the inner wall, and the flowing airflow is concentrated between the transverse plates to form a negative pressure area, so that the air on the surface of the transverse plates flows to between the transverse plates through the gap, and contacts the metal heat conductive sheet through the refrigeration pipe, so that the temperature of the metal heat conductive sheet is lower, more condensation is concentrated, and convection is formed on the surface of the metal sheet through the movement of the airflow, so that it evaporates quickly.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle refrigerators, and in particular to a wall anti-condensation structure of a vehicle refrigerator. Background Art

[0002] As the name implies, a car refrigerator is a refrigerator designed for cars. It can be used directly in the car to provide refrigeration or freezing services for drivers and passengers. This type of refrigerator is usually small and easy to place, and can be powered by connecting to the car battery or cigarette lighter. The main functions of a car refrigerator include freshness preservation, refrigeration and freezing, and it is suitable for storing beverages, fruits, food, medicines and other items that need to be kept at low temperatures. The emergence of car refrigerators has greatly improved the travel experience of drivers and passengers. In the hot summer, car refrigerators can provide cold drinks and fruits at any time, bringing a touch of coolness to the journey. On long-distance trips, car refrigerators can also ensure the freshness of food and medicines, providing protection for the health of travelers. In addition, car refrigerators also have the characteristics of energy saving, environmental protection, and low noise, creating a more comfortable and quiet driving environment for drivers. In short, car refrigerators are an indispensable part of modern car life, bringing great convenience and comfort to drivers and passengers.

[0003] The main reason for condensation on the wall of a car refrigerator is the condensation of water vapor caused by 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 to form condensation. In a car environment, due to the large temperature difference between the refrigerator wall and the surrounding air, especially in a humid or high temperature environment, condensation is more likely to occur. The water droplets formed by condensation may accumulate in the corners or gaps inside the refrigerator. Long-term accumulation may cause moisture inside the refrigerator, damage the material and structure of the refrigerator, and shorten the service life of the refrigerator. In addition, if a large amount of condensation is generated at the suction point of the refrigerator cover, the sealing effect will be weakened, resulting in a poor refrigeration effect, a large waste of resources, and damage to internal storage. Summary of the invention

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

[0005] (II) Technical solution: In order to achieve the above-mentioned purpose of reducing condensation in a vehicle refrigerator, the present invention provides the following technical solution: a wall anti-condensation structure of a vehicle refrigerator, comprising a vehicle refrigerator body and a refrigerator cover, the vehicle refrigerator body is provided with a refrigerator air outlet and a refrigerator fan, and the refrigerator fan drives the movement of the air flow inside the vehicle refrigerator body, the vehicle refrigerator body is provided with a refrigeration pipe and a foaming layer, a refrigerant is introduced into the refrigeration pipe to refrigerate the vehicle refrigerator body, the refrigerator cover is sucked onto a suction plate outside the storage area in the vehicle refrigerator body, a metal heat conductive sheet is provided on the inner wall of the side of the vehicle refrigerator body, the back of the metal heat conductive sheet is in contact with the refrigeration pipe, and the area on the inner wall of the vehicle refrigerator body where the metal heat conductive sheet is not provided is in contact with the foaming layer, two horizontal plates are provided between every two of the metal heat conductive sheets, and a gap is left between the horizontal plates and the inner wall, and the flowing air flow is concentrated between the horizontal plates to form a negative pressure area, so that the air on the surface of the horizontal plates flows to between the horizontal plates through the gap.

[0006] Vertical cylindrical columns are arranged between the horizontal plates, and air flows through the columns to form vortices rotating inward on both sides, and heat is transferred through the vortices. Because the vortices are constantly rotating inward, the flow speed is slow, the contact time with the items stored in the refrigerator is longer, and the heat transfer time is longer. In the refrigerator without air flow movement, it is difficult for the cold air to be evenly distributed in every corner of the refrigerator due to natural convection and diffusion. This causes the temperature of the area close to the refrigeration element to be too low, while the temperature of the area far away from the refrigeration element may still be high. The vortex airflow forces convection to make the cold air move along the inner wall, forming a stable cycle, ensuring that the cold air can be evenly distributed to every corner of the refrigerator.

[0007] The refrigerator fan is operated to blow the air inside the vehicle refrigerator body outward, and the external air enters the interior through the refrigerator air vent, and a dehumidification net is arranged in the refrigerator air vent.

[0008] A cup holder is arranged above the vehicle-mounted refrigerator body.

[0009] A partition is arranged on the topmost horizontal plate in the vehicle refrigerator body, and an arc-shaped depression is arranged on the side of the partition, and the partition can be flipped upward. The partition is arranged on the side of the partition, and the partition can be flipped upward. The items placed in the refrigerator can be fixed by means of the partition so that a certain gap is formed between the partition and the inner wall, which facilitates the movement of airflow to form vortices for heat exchange. At the same time, the partition can be flipped upward by means of pin connection, etc., which can reduce obstructions when placing irregular items for cooling.

[0010] A suction plate air duct is provided on the suction plate, and the suction plate air duct is connected to the internal storage area of ​​the vehicle refrigerator body. The suction plate air duct is connected to the internal storage area of ​​the vehicle refrigerator body. The suction plate air duct 111 can introduce the cold air inside the refrigerator into the door suction point, so that the temperature at the suction point is closer to the internal temperature of the refrigerator, reducing the temperature difference. The temperature difference is one of the main reasons for the formation 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 fit more tightly when closed. At the same time, the air flow through the suction plate air duct can form a certain pressure difference to enhance the sealing effect.

[0011] Uninflated airbags are provided at the corners of the internal storage area of ​​the vehicle refrigerator body. Although the airbags are not filled with air, they can still form an air layer, which can reduce the heat exchange between the inside and outside of the refrigerator to a certain extent, and the airbags can produce slight movements with the air flow movement and temperature changes inside the refrigerator to prevent moisture from condensing into ice after accumulation at the corners. The design of the airbags can reduce the collision sound caused by vibration of items inside the refrigerator, thereby reducing the noise level of the refrigerator and providing a quieter use environment.

[0012] A dehumidification net is arranged inside the refrigerator fan, and external air flow is blown into the interior of the vehicle-mounted refrigerator body and flows out through the refrigerator air outlet, the refrigerator air outlet is connected with the condenser pipe, and the condenser pipe is connected with the water collecting tank.

[0013] The condensing pipe has the same extension path as the refrigeration pipe and is in contact with the outer wall of the vehicle refrigerator body.

[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 of the wall of the car refrigerator is connected to the refrigeration pipe through the back of the metal heat conductive sheet. The refrigerant is passed through the refrigeration pipe. The metal heat conductive sheet is cooled by heat transfer to cool the inside of the car refrigerator body, so that the metal heat conductive sheet and the adjacent inner wall have a significant temperature difference. The reason for the condensation on the wall of the car refrigerator is mainly the condensation of water vapor caused by the temperature difference, so that most of the condensation inside the refrigerator is concentrated on the surface of the metal heat conductive sheet. The refrigerator fan drives the air flow inside the car refrigerator body to flow to the horizontal plate on the side inner wall, and because there is a gap between the horizontal plate and the inner wall, the air flow on the surface of the metal heat conductive sheet flows between the upper and lower horizontal plates. When the fast-flowing air flow on the surface forms a negative pressure in the condensation area, the drier and higher-temperature air outside will be attracted to the area. This directional convection movement not only increases the contact area between the condensation surface and the air, but also reduces the air by constantly replacing the air layer on the condensation surface. The water vapor partial pressure increases, thereby enhancing the driving force for evaporation. At the same time, the turbulent effect of convection also helps to disperse larger condensation droplets into smaller water droplets or water films, increasing the evaporation area and speed. Under negative pressure conditions, the mean free path of air molecules increases, and water molecules are more likely to diffuse from the condensation surface into the air. This diffusion effect is enhanced under the action of the negative pressure gradient, allowing water molecules on the condensation surface to enter the air faster, accelerating the evaporation process. In addition, the air flow movement forms a uniform distribution of the temperature field inside the refrigerator, avoiding the formation of condensation caused by local overcooling. Through continuous air circulation, the heat inside the refrigerator can be effectively transferred and dispersed, reducing the temperature difference effect, thereby reducing the risk of condensation. Under negative pressure conditions, humid air is not easy to accumulate inside the refrigerator, avoiding the formation of condensation on the refrigerator wall. The air flow movement takes the humid air away from the condensation-prone area to ensure that the inside of the refrigerator remains dry. This dry environment is not only conducive to the preservation of food, but also effectively extends the service life of the refrigerator.

[0016] 2. The wall anti-condensation structure of the vehicle refrigerator is provided with columns between the horizontal plates. When the air flows through the columns, due to their blocking effect, inward rotating vortices are formed on both sides of the columns, and heat is transferred through the vortices. Compared with a refrigerator without air flow movement, it is difficult for the cold air inside the refrigerator to be evenly distributed in every corner due to natural convection and diffusion, which causes the temperature of the area close to the refrigeration element to be too low, while the temperature of the area far away from the refrigeration element may still be high. The vortex airflow uses forced convection to make the cold air move along the inner wall to form a stable cycle, ensuring that the cold air can be evenly distributed to every corner of the refrigerator. This uniform temperature distribution allows the food inside the refrigerator to maintain a better storage state and improve the refrigeration effect. The formation of the vortex airflow is due to the rotational movement of the air being forced to be guided in the vortex tube or a specially designed channel. This rotational movement allows the cold air to form a stable circulation path along the inner wall to avoid the cold air accumulating in a certain area. At the same time, the vortex movement can also effectively prevent the temperature stratification inside the refrigerator and maintain the overall temperature stability, which is different from the fast Compared with the moving airflow, although the fast-moving airflow can speed up the air circulation inside the refrigerator, the too fast airflow speed may cause the cold air to fail to fully penetrate into the food. This is because the fast-moving airflow will form a layer of flowing air film on the surface of the food, hindering the direct contact between the cold air and the food. In contrast, the speed of the vortex airflow is moderate, which can ensure that the cold air fully penetrates into the food and improve the refrigeration effect. The speed and flow path of the vortex airflow are carefully designed to achieve the best refrigeration effect. By controlling 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 enables the vortex airflow to ensure that the cold air can fully penetrate into the food while maintaining uniform distribution of cold air. In addition, the vortex airflow is relatively stable, which reduces the noise generated when the refrigerator is running, which is very important for improving the user experience. The efficient refrigeration effect of the vortex airflow means that the refrigerator can reach the set temperature faster and maintain stability, thereby reducing energy consumption. At the same time, the vortex airflow technology does not require the use of additional refrigerants or cooling media, which is more environmentally friendly.

[0017] 3. The anti-condensation structure of the wall of the vehicle refrigerator is provided with a suction plate air duct through the suction plate. The suction plate air duct is connected with the internal storage area of ​​the vehicle refrigerator body. The suction point of the refrigerator door is a sensitive area where the internal and external environments of the refrigerator meet. The hot air from the external environment can easily invade through the gap and meet the cold air inside the refrigerator, forming a temperature difference. The existence of temperature difference is one of the main conditions for condensation. After the suction plate air duct is provided, the cold air can mix with the hot air at the suction point through the suction plate air duct to form a temperature transition area. Due to the introduction and mixing of cold air, the temperature at the suction point is balanced, the temperature difference is reduced, and thus the possibility of condensation is reduced. This temperature balance effect not only affects the suction point, It can also have a positive impact on the temperature distribution inside the entire refrigerator and improve the overall temperature stability of the refrigerator. The design of the suction plate air duct is usually combined with the sealing structure of the refrigerator. 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 air flow through the suction plate air duct can form a certain pressure difference, thereby enhancing the sealing performance of the refrigerator door. The optimized sealing effect effectively prevents external hot and humid air from entering the refrigerator through the suction point, thereby reducing the increase in humidity inside the refrigerator. This helps to maintain a low temperature and low humidity environment inside the refrigerator and reduce the formation of condensation. At the same time, good sealing performance can also reduce the leakage of cold air inside the refrigerator and improve the energy efficiency of the refrigerator.

[0018] 4. The wall anti-condensation structure of the vehicle refrigerator is provided with a dehumidification net through the refrigerator fan. The external air flow is blown into the interior of the vehicle refrigerator body through the refrigerator fan and flows out through the refrigerator air outlet. The refrigerator air outlet is connected with the condenser pipe, and the condenser pipe is connected with the water collecting tank. The condenser pipe has the same extension path as the refrigeration pipe and is in contact with the outer wall of the vehicle refrigerator body. Because the condensation inside the refrigerator evaporates, the gas entering the refrigerator air outlet contains a certain amount of water vapor. When the water vapor enters the condenser pipe, the gaseous water condenses to form liquid water droplets due to the reduction of space and the increase of air pressure. Finally, the liquid water droplets are passed into the water collecting tank for collection and treatment. At the same time, the condenser pipe is in contact with the outer wall of the vehicle refrigerator body. When the water vapor condenses, it will emit a certain amount of heat, which reduces the cooling effect of the refrigeration pipe on the outer wall of the refrigerator, so that condensation is generated on the outer wall of the refrigerator. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

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

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

[0024] Figure 6 It is a cross-sectional schematic diagram of a second embodiment of the present invention;

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

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

[0027] Fig. 9 It is a detailed schematic diagram of the metal heat conductive sheet and the pillars of the present invention.

[0028] In the figure: 1. vehicle refrigerator body; 11. suction plate; 12. metal heat conductive sheet; 13. horizontal plate; 14. refrigerator air outlet; 15. refrigerator fan; 101. refrigerator cover; 102. cup holder; 111. suction plate air duct; 121. refrigeration pipe; 122. condenser pipe; 131. column; 201. partition; 202. water collecting tank. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example 1: Please refer to Figure 1 , Figure 5 and Figure 7-Figure 9The wall anti-condensation structure of the vehicle refrigerator comprises a vehicle refrigerator body 1 and a refrigerator cover 101. The vehicle refrigerator body 1 is provided with a refrigerator air outlet 14 and a refrigerator fan 15. The refrigerator fan 15 drives the movement of the air flow inside the vehicle refrigerator body 1. The vehicle refrigerator body 1 is provided with a refrigeration pipe 121 and a foaming layer. The refrigeration pipe 121 is passed with a refrigerant to refrigerate the vehicle refrigerator body 1. The refrigerator cover 101 is sucked on the suction plate 11 outside the storage area in the vehicle refrigerator body 1. The inner wall of the side of the vehicle refrigerator body 1 is provided with a metal heat conductive sheet 12. The back of the metal heat conductive sheet 12 is in contact with the refrigeration pipe 121, and the area on the inner wall of the vehicle refrigerator body 1 where the metal heat conductive sheet 12 is not provided is in contact with the foaming layer. Two transverse plates 13 are provided between each two of the metal heat conductive sheets 12, and a gap is left between the transverse plates 13 and the inner wall. The flowing airflow is concentrated between the transverse plates 13 to form a negative pressure area, so that the air on the surface of the transverse plates 13 flows to between the transverse plates 13 through the gap. Vertical cylindrical columns 131 are provided between the transverse plates 13. The airflow flows through the columns 131 to form vortices rotating inward on both sides. The back of the metal heat conductive sheet 12 is in contact with the foaming layer. At the junction of the cooling tube 121, a refrigerant is passed through the cooling tube 121. Through heat transfer, the metal heat conductive sheet 12 lowers the temperature and cools the inside of the vehicle refrigerator body 1. Because the non-metal heat conductive sheet 12 area on the inner wall of the refrigerator is not in contact with the cooling tube 121, and the back is filled with a foaming layer, a significant temperature difference is generated between the metal heat conductive sheet 12 and the adjacent inner wall. The reason for condensation on the wall of the vehicle refrigerator is mainly the condensation of water vapor caused by 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 to form condensation, which makes the vehicle refrigerator body 1 cool. The condensation inside the refrigerator is concentrated on the surface of the metal heat conductive sheet 12. The operation of the refrigerator fan 15 drives the air flow inside the vehicle refrigerator body 1 to move toward the horizontal plate 13 located on the inner wall of the side. Because there is a gap between the horizontal plate 13 and the inner wall, the air flow on the surface of the metal heat conductive sheet 12 flows between the horizontal plates 13 above and below itself. The fast-flowing air flow on the surface causes the condensation on the metal heat conductive sheet 12 to be blown away and evaporated. Through evaporation, the internal temperature is lowered because the evaporation of liquid needs to absorb heat. In addition, the air flow moving between the horizontal plates 13, see Figure 4 , columns 131 are arranged between the horizontal plates 13. When the air flows through the columns 131, due to the blocking effect, inward rotating vortices are formed on both sides of the columns 131, and heat is transferred through the vortices to cool the stored items in the refrigerator.

[0031] The refrigerator fan 15 blows out the internal airflow of the vehicle refrigerator body 1 through operation, and the external airflow enters the interior through the refrigerator air outlet 14. A dehumidification net is provided in the refrigerator air outlet 14. After the internal air of the refrigerator is blown out through the refrigerator fan 15, the internal air pressure is reduced, so that the air can enter the interior from the refrigerator air outlet 14 to form a flow, and can bring out the cold air during refrigeration. While the refrigerator is refrigerating, the external environment is cooled.

[0032] A cup holder 102 is provided above the vehicle refrigerator body 1 .

[0033] A partition 201 is provided on the uppermost horizontal plate 13 in the vehicle refrigerator body 1. The side of the partition 201 is provided with an arc-shaped depression, and the partition 201 can be flipped upward. The partition 201 can be used to fix the items placed in the refrigerator so that a certain gap is formed between it and 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, etc., which can reduce obstacles when placing irregular items for cooling.

[0034] The suction plate 11 is provided with a suction plate duct 111, and the suction plate duct 111 is connected to the internal storage area of ​​the vehicle refrigerator body 1. The suction plate duct 111 can introduce the cold air inside the refrigerator into the door suction point, so that the temperature at the suction point is closer to the internal temperature of the refrigerator, reducing the temperature difference. The temperature difference is one of the main reasons for the formation of condensation. The smaller the temperature difference, the lower the possibility of condensation. The design of the suction plate duct 111 is usually combined with the sealing structure of the refrigerator, so that the refrigerator door can fit more tightly when closed. At the same time, the air flow through the suction plate duct 111 can form a certain pressure difference to enhance the sealing effect.

[0035] Unfilled airbags are provided at the corners of the internal storage area of ​​the vehicle-mounted refrigerator body 1. Although the airbags are not filled with air, they can still form an air layer, which can reduce the heat exchange between the inside and outside of the refrigerator to a certain extent, and the airbags can produce slight movements with the air flow movement and temperature changes inside the refrigerator to prevent moisture from condensing into ice after accumulation at the corners. The design of the airbags can reduce the collision sound caused by vibration of items inside the refrigerator, thereby reducing the noise level of the refrigerator and providing a quieter use environment.

[0036] Example 2: Please refer to Figure 1 , Figure 6 and Figure 7-Figure 9The wall anti-condensation structure of the vehicle refrigerator comprises a vehicle refrigerator body 1 and a refrigerator cover 101. The vehicle refrigerator body 1 is provided with a refrigerator air outlet 14 and a refrigerator fan 15. The refrigerator fan 15 drives the movement of the air flow inside the vehicle refrigerator body 1. The vehicle refrigerator body 1 is provided with a refrigeration pipe 121 and a foaming layer. The refrigeration pipe 121 is passed with a refrigerant to refrigerate the vehicle refrigerator body 1. The refrigerator cover 101 is sucked on the suction plate 11 outside the storage area in the vehicle refrigerator body 1. The inner wall of the side of the vehicle refrigerator body 1 is provided with a metal heat conductive sheet 12. The back of the metal heat conductive sheet 12 is in contact with the refrigeration pipe 121, and the area on the inner wall of the vehicle refrigerator body 1 where the metal heat conductive sheet 12 is not provided is in contact with the foaming layer. Two transverse plates 13 are provided between each two of the metal heat conductive sheets 12. A gap is left between the transverse plates 13 and the inner wall. The flowing airflow is concentrated between the transverse plates 13 to form a negative pressure area, so that the air on the surface of the transverse plates 13 flows between the transverse plates 13 through the gap. Vertical cylindrical columns 131 are provided between the transverse plates 13. The airflow flows through the columns 131 to form vortices rotating inward on both sides. The back of the metal heat conductive sheet 12 is in contact with the foaming layer. At the junction of the cooling tube 121, a refrigerant is passed through the cooling tube 121. Through heat transfer, the metal heat conductive sheet 12 lowers the temperature and cools the inside of the vehicle refrigerator body 1. Because the non-metal heat conductive sheet 12 area on the inner wall of the refrigerator is not in contact with the cooling tube 121, and the back is filled with a foaming layer, a significant temperature difference is generated between the metal heat conductive sheet 12 and the adjacent inner wall. The reason for condensation on the wall of the vehicle refrigerator is mainly the condensation of water vapor caused by 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 to form condensation, which makes the vehicle refrigerator body 1 cool. The condensation inside the refrigerator is concentrated on the surface of the metal heat conductive sheet 12. The operation of the refrigerator fan 15 drives the air flow inside the vehicle refrigerator body 1 to move toward the horizontal plate 13 located on the inner wall of the side. Because there is a gap between the horizontal plate 13 and the inner wall, the air flow on the surface of the metal heat conductive sheet 12 flows between the horizontal plates 13 above and below itself. The fast-flowing air flow on the surface causes the condensation on the metal heat conductive sheet 12 to be blown away and evaporated. Through evaporation, the internal temperature is lowered because the evaporation of liquid needs to absorb heat. In addition, the air flow moving between the horizontal plates 13, see Figure 4 , columns 131 are arranged between the horizontal plates 13. When the air flows through the columns 131, due to the blocking effect, inward rotating vortices are formed on both sides of the columns 131, and heat is transferred through the vortices to cool the stored items in the refrigerator.

[0037] A cup holder 102 is provided above the vehicle refrigerator body 1 .

[0038] A partition 201 is provided on the uppermost horizontal plate 13 in the vehicle refrigerator body 1. The side of the partition 201 is provided with an arc-shaped depression, and the partition 201 can be flipped upward. The partition 201 can be used to fix the items placed in the refrigerator so that a certain gap is formed between it and 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, etc., which can reduce obstacles when placing irregular items for cooling.

[0039] The suction plate 11 is provided with a suction plate duct 111, and the suction plate duct 111 is connected to the internal storage area of ​​the vehicle refrigerator body 1. The suction plate duct 111 can introduce the cold air inside the refrigerator into the door suction point, so that the temperature at the suction point is closer to the internal temperature of the refrigerator, reducing the temperature difference. The temperature difference is one of the main reasons for the formation of condensation. The smaller the temperature difference, the lower the possibility of condensation. The design of the suction plate duct 111 is usually combined with the sealing structure of the refrigerator, so that the refrigerator door can fit more tightly when closed. At the same time, the air flow through the suction plate duct 111 can form a certain pressure difference to enhance the sealing effect.

[0040] Unfilled airbags are provided at the corners of the internal storage area of ​​the vehicle-mounted refrigerator body 1. Although the airbags are not filled with air, they can still form an air layer, which can reduce the heat exchange between the inside and outside of the refrigerator to a certain extent, and the airbags can produce slight movements with the air flow movement and temperature changes inside the refrigerator to prevent moisture from condensing into ice after accumulation at the corners. The design of the airbags can reduce the collision sound caused by vibration of items inside the refrigerator, thereby reducing the noise level of the refrigerator and providing a quieter use environment.

[0041] A dehumidification net is provided in the refrigerator fan 15, and external air flow is blown into the interior of the vehicle refrigerator body 1 through the refrigerator fan 15, and flows out through the refrigerator air outlet 14, and the refrigerator air outlet 14 is connected with the condenser 122, and the condenser 122 is connected with the water collecting tank 202, and the condenser 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. Because the condensation inside the refrigerator evaporates, the gas entering the refrigerator air outlet 14 contains a certain amount of water vapor. When the water vapor enters the condenser 122, due to the reduction of space and the increase of air pressure, the gaseous water condenses to form liquid water droplets, and finally the liquid water droplets are passed into the water collecting tank 202 for collection and treatment. At the same time, the condenser 122 is in contact with the outer wall of the vehicle refrigerator body 1. When the water vapor condenses, it will emit a certain amount of heat, which reduces the cooling effect of the refrigeration pipe 121 on the outer wall of the refrigerator, so that condensation is generated on the outer wall of the refrigerator.

[0042] Working principle: A metal heat conductive sheet 12 is provided on the inner wall of the side of the vehicle refrigerator body 1. The back of the metal heat conductive sheet 12 is connected to the refrigeration tube 121. The refrigeration tube 121 is filled with refrigerant. The metal heat conductive sheet 12 lowers the temperature through heat transfer to cool the inside of the vehicle refrigerator body 1. Because the non-metal heat conductive sheet 12 area on the inner wall of the refrigerator is not in contact with the refrigeration tube 121, and the back is filled with a foaming layer, there is a significant temperature difference between the metal heat conductive sheet 12 and the adjacent inner wall. The reason for condensation on the wall of the vehicle refrigerator is mainly the condensation of water vapor caused by 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 causes the condensation formed inside the refrigerator to be more concentrated on the surface of the metal heat conductive sheet 12, and a small amount of condensation is generated on the adjacent inner wall. The operation of the refrigerator fan 15 drives the air flow inside the vehicle refrigerator body 1 to move toward the horizontal plate 13 located on the side inner wall, and because there is a gap between the horizontal plate 13 and the inner wall, the air flow on the surface of the metal heat conductive sheet 12 flows between the horizontal plates 13 above and below itself. The fast-flowing air flow on the surface causes the condensation condensed on the metal heat conductive sheet 12 to be blown away and evaporated, and the internal temperature is lowered through evaporation, because the evaporation of liquid needs to absorb heat, and the air flow moving between the horizontal plates 13 is set between the horizontal plates 13. A column 131 is arranged. When air flows through the column 131, due to its blocking effect, an inward rotating vortex is formed on both sides of the column 131, and heat is transferred through the vortex. Because the vortex is constantly rotating inward, the flow speed is slow, the contact time with the items stored in the refrigerator is longer, and the heat transfer time is longer. In the refrigerator without air flow movement, it is difficult for the cold air to be evenly distributed in every corner of the refrigerator due to natural convection and diffusion. This causes the temperature of the area close to the refrigeration element to be too low, while the temperature of the area far away from the refrigeration element may still be high. The vortex airflow uses forced convection to make the cold air move along the inner wall to form a stable cycle, ensuring that the cold air can be evenly distributed To every corner of the refrigerator, the formation of vortex airflow is due to the rotational motion of the air being forced to be guided in the vortex tube or a specially designed channel. This rotational motion enables the cold air to form a stable circulation path along the inner wall to avoid the accumulation of cold air in a certain area, and compared with the rapid movement of the air flow, the speed of the vortex airflow is moderate, which can ensure that the cold air fully penetrates into the food and improves the refrigeration effect. Although the fast-moving air flow can speed up the air circulation inside the refrigerator, the excessively fast air flow speed may cause the cold air to fail to fully penetrate into the food. This is because the fast-moving air flow will form a layer of 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 article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention 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 outlet (14) and a refrigerator fan (15), and the refrigerator fan (15) drives the movement of air flow inside the vehicle refrigerator body (1), wherein a refrigeration pipe (121) and a foaming layer are provided in the vehicle refrigerator body (1), and a refrigerant is introduced into the refrigeration pipe (121) to refrigerate the vehicle refrigerator body (1), wherein the refrigerator cover (101) is attracted to a suction plate (11) outside a storage area in the vehicle refrigerator body (1), and wherein the characteristics are as follows: 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) is in contact with the refrigeration pipe (121), and the area on the inner wall of the vehicle refrigerator body (1) where the metal heat conducting sheet (12) is not provided is in contact with the foaming layer, and two transverse plates (13) are provided between each two of the metal heat conducting sheets (12), and a gap is left between the transverse plates (13) and the inner wall, so that the flowing airflow is concentrated between the transverse plates (13) to form a negative pressure area, so that the air on the surface of the transverse plates (13) flows to between the transverse plates (13) through the gap.

2. The wall anti-condensation structure of the vehicle refrigerator according to claim 1, characterized in that: Vertical cylindrical columns (131) are arranged between some of the adjacent transverse plates (13), and airflow flows through the columns (131) to form vortices rotating inwards on both sides.

3. The wall anti-condensation structure of the vehicle refrigerator according to claim 1, characterized in that: The refrigerator fan (15) is operated to blow the internal airflow of the vehicle-mounted refrigerator body (1) outward, and the external airflow enters the interior through the refrigerator air outlet (14), and a dehumidification net is provided in the refrigerator air outlet (14).

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

5. The wall anti-condensation structure of the vehicle refrigerator according to claim 1, characterized in that: A partition (201) is provided on the uppermost horizontal plate (13) in the vehicle refrigerator body (1), a circular arc-shaped depression is provided on the side surface of the partition (201), and the partition (201) can be turned upward.

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

7. The wall anti-condensation structure of the vehicle refrigerator according to claim 1, characterized in that: An air bag that is not filled with air is provided at a corner of the internal storage area of ​​the vehicle refrigerator body (1).

8. The wall anti-condensation structure of the vehicle refrigerator according to claim 1, characterized in that: A dehumidification net is provided inside the refrigerator fan (15); external air flow is blown into the interior of the vehicle-mounted refrigerator body (1) through the refrigerator fan (15) and flows out through the refrigerator air outlet (14); the refrigerator air outlet (14) is connected to a condenser pipe (122); and the condenser pipe (122) is connected to a water collecting tank (202).

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

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