Anti-frosting automobile air conditioner evaporator

Abstract

The utility model discloses an anti-frosting automobile air conditioner evaporator, and relates to the technical field of air conditioner evaporators, the anti-frosting automobile air conditioner evaporator comprises an air conditioner evaporator body, the outer side surface of an evaporator shell is uniformly provided with main drainage grooves, the outer side surface of the evaporator shell is provided with a drainage leakage-proof assembly, and the main drainage grooves are communicated with the drainage leakage-proof assembly. An acceleration anti-frosting assembly is installed on the outer side surface of the evaporator shell. The first drainage groove, the second drainage groove, the main drainage groove and the fan blades are matched with one another, so that airflow is formed on the outer side of the evaporator shell, condensate water is forced to flow faster, drainage efficiency is improved, water drops are prevented from condensing and frosting on the surface of the evaporator shell, and the airflow formed by the fan blades helps the surface of the evaporator shell to dissipate heat quickly. The surface temperature is kept lower than the dew point temperature, frosting is reduced, the service life of the air conditioner evaporator body is prolonged, flowing of condensate water is accelerated, frosting on the surface of a shell is reduced, and the heat exchange efficiency of the air conditioner evaporator body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air-conditioning evaporators, in particular to an anti-frost automobile air-conditioning evaporator. Background Art

[0002] The automotive air conditioning evaporator is an important part of the automotive air conditioning system. It is mainly used to absorb the condensed water from the high-temperature, high-pressure refrigerant vapor from the compressor and evaporate it, absorbing the heat in the air, thereby reducing the temperature of the air and sending cold air into the car to provide passengers with a comfortable driving environment. The evaporator is generally installed inside the dashboard of the vehicle and connected to the air conditioning fan. When the air conditioning system is turned on, the high-pressure refrigerant passes through the evaporation pipe inside the evaporator, thereby absorbing the heat in the air, causing the refrigerant to evaporate into a low-temperature, low-pressure gas, and generating cold air at the same time. Then, the air conditioning fan sends the air cooled by the evaporator into the car, reducing the temperature inside the car and providing passengers with a comfortable driving experience.

[0003] The existing automotive air-conditioning evaporator shell has a good condensation effect, which causes some condensed water to frost on the evaporator shell. When the evaporator shell is frosted, the condensed water will form a layer of ice covering the shell surface, which will reduce air flow and heat exchange efficiency, resulting in a decrease in the evaporator's cooling effect. Frosting will cause the evaporator's operating temperature to rise. In order to maintain the cooling effect, the air-conditioning system needs longer time and more energy to complete the same cooling task, increasing energy consumption. Frosting can cause the shell and evaporation pipe to be blocked, and at the same time affect the flow of refrigerant, which will cause the pressure of the air-conditioning system to rise and increase the load on the system. Utility Model Content

[0004] The utility model provides an anti-frost automobile air-conditioning evaporator, which has the advantage of preventing condensed water from frosting on the outer shell of the automobile air-conditioning evaporator, so as to solve the problem of condensed water frosting on the surface of the outer shell of the automobile air-conditioning evaporator.

[0005] In order to achieve the purpose of preventing condensed water from frosting on the shell of an automobile air-conditioning evaporator, the utility model provides the following technical solutions: an anti-frost automobile air-conditioning evaporator, comprising an air-conditioning evaporator body, an evaporator pipe is arranged inside the air-conditioning evaporator body, a coil is arranged inside the air-conditioning evaporator body, an evaporator shell is evenly distributed inside the air-conditioning evaporator body, the inside of the evaporator shell is fixedly connected to the outer surface of the evaporator pipe, the inside of the evaporator shell is fixedly connected to the outer surface of the coil, an expansion valve is installed on the surface of one end of the evaporator pipe, main drainage grooves are evenly distributed on the outer surface of the evaporator shell, a drainage leakage prevention component is installed on the outer surface of the evaporator shell, and an accelerated anti-frost component is installed on the outer surface of the evaporator shell.

[0006] As a preferred technical solution of the utility model, the drainage and leakage prevention assembly includes a first drainage groove and a first baffle, the first drainage groove is evenly distributed and opened on the outer surface of the evaporator shell, and the first baffle is installed on the inner wall of the first drainage groove.

[0007] As a preferred technical solution of the utility model, the outer surface of the evaporator shell is evenly distributed with second drainage grooves, the inner wall of the second drainage groove is movably installed with a second baffle, and the interior of the second baffle and the interior of the first baffle are both provided with inclined surfaces.

[0008] As a preferred technical solution of the utility model, the accelerated anti-frost component includes a stepper motor and a main rotating shaft. The stepper motor is installed on the outer surface of the evaporator housing, and the main rotating shaft is installed on the outer surface of the output end of the stepper motor. The outer surface of the main rotating shaft is in active contact with the interior of the evaporator housing.

[0009] As a preferred technical solution of the utility model, auxiliary rotating shafts are evenly and movably installed inside the evaporator shell, and a driving gear is installed on the outer surface of the main rotating shaft.

[0010] As a preferred technical solution of the utility model, a driven gear is installed on the outer surface of the secondary rotating shaft, and a chain is movably installed on the outer surface of the driving gear and the outer surface of the driven gear.

[0011] As a preferred technical solution of the utility model, the outer surfaces of the main rotating shaft and the outer surfaces of the auxiliary rotating shaft are both installed with circular blocks, the outer surfaces of the circular blocks are in active contact with the inside of the evaporator shell, and the bottom end surfaces of the main rotating shaft and the bottom end surfaces of the auxiliary rotating shaft are both installed with fan blades.

[0012] Compared with the prior art, the utility model provides an anti-frost automobile air-conditioning evaporator, which has the following beneficial effects:

[0013] 1. The anti-frost automobile air-conditioning evaporator forms an airflow outside the evaporator shell through the cooperation of the first drainage groove, the second drainage groove, the main drainage groove and the fan blades, forcing the condensed water to flow faster, thereby improving the drainage efficiency and preventing the water droplets from condensing and frosting on the surface of the evaporator shell. The airflow formed by the fan blades can also help the surface of the evaporator shell to quickly dissipate heat, keep the surface temperature below the dew point temperature, reduce the occurrence of frosting, and extend the service life of the air-conditioning evaporator body. By accelerating the flow of condensed water and reducing frosting on the shell surface, the heat exchange efficiency of the air-conditioning evaporator body can be improved.

[0014] 2. The anti-frost automobile air-conditioning evaporator prevents condensed water from splashing outside the evaporator housing through the cooperation of the first drainage groove, the first baffle, the second drainage groove and the second baffle. The condensed water can be removed more quickly to prevent the condensed water from condensing and frosting on the surface of the evaporator housing, thereby maintaining the normal working state of the air-conditioning evaporator body. The first baffle and the second baffle cooperate with each other to effectively prevent the condensed water from splashing outside the evaporator housing, thereby avoiding unnecessary failures caused by the condensed water or affecting the normal operation of the automobile air-conditioning system. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the evaporator housing of the utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the evaporator housing of the utility model from another perspective;

[0018] Figure 4 The utility model provides Figure 3 A schematic diagram of the structure enlargement of part A;

[0019] Figure 5 This is a schematic diagram of the internal structure of the accelerated anti-frost component of the utility model.

[0020] In the figure: 1. air conditioner evaporator body; 2. evaporator pipe; 3. coil; 4. evaporator shell; 5. expansion valve; 6. first drainage groove; 7. first baffle; 8. second drainage groove; 9. second baffle; 10. main drainage groove; 11. stepper motor; 12. main rotating shaft; 13. secondary rotating shaft; 14. circular ring block; 15. fan blade; 16. inclined surface; 17. driving gear; 18. driven gear; 19. chain. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-Figure 5The utility model discloses an anti-frost automobile air-conditioning evaporator, comprising an air-conditioning evaporator body 1, an evaporator pipe 2 is arranged inside the air-conditioning evaporator body 1, a coil 3 is arranged inside the air-conditioning evaporator body 1, an evaporator shell 4 is evenly distributed inside the air-conditioning evaporator body 1, the inside of the evaporator shell 4 is fixedly connected to the outer surface of the evaporator pipe 2, the inside of the evaporator shell 4 is fixedly connected to the outer surface of the coil 3, an expansion valve 5 is installed on one end surface of the evaporator pipe 2, a main drainage groove 10 is evenly distributed on the outer surface of the evaporator shell 4, a drainage anti-leakage component is installed on the outer surface of the evaporator shell 4, an accelerated anti-frost component is installed on the outer surface of the evaporator shell 4, and a plurality of fan blades 15 are installed at the same time. The step performs a rotational motion, so that the condensed water on the outside of the evaporator shell 4 is accelerated to flow in the first drainage groove 6, the second drainage groove 8 and the main drainage groove 10, and an air flow is formed on the outside of the evaporator shell 4, forcing the condensed water to flow faster, thereby improving the drainage efficiency and preventing water droplets from condensing and frosting on the surface of the evaporator shell 4. The air flow formed by the fan blades 15 can also help the surface of the evaporator shell 4 to dissipate heat quickly, keep the surface temperature below the dew point temperature, reduce the occurrence of frost, and extend the service life of the air-conditioning evaporator body 1. By accelerating the flow of condensed water and reducing frost on the shell surface, the heat exchange efficiency of the air-conditioning evaporator body 1 can be improved, energy consumption can be reduced, the cooling effect of the air-conditioning system can be improved, and the condensed water can be prevented from condensing and freezing on the outside of the evaporator shell 4.

[0023] The drainage and leakage prevention assembly includes a first drainage groove 6 and a first baffle 7. The first drainage groove 6 is evenly distributed and opened on the outer surface of the evaporator shell 4. The first baffle 7 is installed on the inner wall of the first drainage groove 6. A large amount of condensed water flows rapidly through the main drainage groove 10, the first drainage groove 6 and the second drainage groove 8.

[0024] The outer surface of the evaporator shell 4 is evenly distributed with a second drainage groove 8, and the inner wall of the second drainage groove 8 is movably installed with a second baffle 9. The interior of the second baffle 9 and the interior of the first baffle 7 are both provided with an inclined surface 16, and the distance between the second baffle 9 and the evaporator shell 4 is greater than the distance between the first baffle 7 and the evaporator shell 4, and the first baffle 7 and the second baffle 9 cooperate with each other to prevent condensed water from splashing onto the outside of the evaporator shell 4.

[0025] The accelerated anti-frost component includes a stepper motor 11 and a main rotating shaft 12. The stepper motor 11 is installed on the outer surface of the evaporator housing 4, and the main rotating shaft 12 is installed on the outer surface of the output end of the stepper motor 11. The outer surface of the main rotating shaft 12 is in active contact with the inside of the evaporator housing 4 and is synchronously driven by the stepper motor 11. The stepper motor 11 synchronously drives the main rotating shaft 12 to rotate.

[0026] A secondary rotating shaft 13 is evenly and movably installed inside the evaporator shell 4, and a driving gear 17 is installed on the outer surface of the main rotating shaft 12. The driving gear 17 is meshed with a plurality of driven gears 18 and a chain 19. The driving gear 17 synchronously drives the driven gear 18 to rotate through the chain 19.

[0027] A driven gear 18 is installed on the outer surface of the secondary rotating shaft 13, and a chain 19 is installed on the outer surface of the driving gear 17 and the outer surface of the driven gear 18 to move together. The driven gear 18 synchronously drives the secondary rotating shaft 13 to rotate, and the secondary rotating shaft 13 also synchronously drives the annular block 14 to rotate.

[0028] The outer surfaces of the main rotating shaft 12 and the outer surfaces of the auxiliary rotating shaft 13 are both installed with circular blocks 14, and the outer surfaces of the circular blocks 14 are in active contact with the inside of the evaporator shell 4. The bottom end surfaces of the main rotating shaft 12 and the bottom end surfaces of the auxiliary rotating shaft 13 are both installed with fan blades 15. The circular blocks 14 enable the main rotating shaft 12 and the auxiliary rotating shaft 13 to rotate stably, and enable several fan blades 15 to rotate synchronously.

[0029] The working principle and use process of the utility model are as follows: when the automobile air-conditioning evaporator body 1 is working, the refrigerant flows through the evaporator pipe 2 or the coil 3, absorbs heat from the surrounding air, and evaporates into a gaseous state, resulting in a large amount of condensed water on the surface of the evaporator shell 4 and the outside of the evaporator pipe 2. A large amount of condensed water flows rapidly through the main drainage groove 10, the first drainage groove 6 and the second drainage groove 8 to prevent the condensed water from condensing on the surface of the evaporator shell 4, and the spacing between the second baffle plate 9 and the evaporator shell 4 is greater than the spacing between the first baffle plate 7 and the evaporator shell 4, and the first baffle plate 7 and the second baffle plate 9 cooperate with each other to prevent the condensed water from splashing outside the evaporator shell 4, so that the condensed water can be discharged more quickly, and the condensed water can be prevented from condensing and frosting on the surface of the evaporator shell 4, so as to maintain the normal working state of the air-conditioning evaporator body 1, and the first baffle plate 7 and the second baffle plate 9 cooperate with each other to effectively prevent the condensed water from splashing outside the evaporator shell 4, so as to avoid unnecessary failures caused by the condensed water or affecting the normal operation of the automobile air-conditioning system.

[0030] And it is synchronously driven by the stepping motor 11, the stepping motor 11 synchronously drives the main rotating shaft 12 to rotate, the main rotating shaft 12 synchronously drives the annular block 14, the driving gear 17 and the fan blades 15 to rotate synchronously, the driving gear 17 and the plurality of driven gears 18 and the chain 19 are meshed with each other, the driving gear 17 synchronously drives the driven gear 18 to rotate through the chain 19, the driven gear 18 synchronously drives the secondary rotating shaft 13 to rotate, the secondary rotating shaft 13 also synchronously drives the annular block 14 to rotate, the annular block 14 makes the main rotating shaft 12 and the secondary rotating shaft 13 rotate stably, makes the plurality of fan blades 15 rotate synchronously, so that the evaporator The condensed water on the outside of the shell 4 is accelerated to flow in the first drainage groove 6, the second drainage groove 8 and the main drainage groove 10, and an airflow is formed on the outside of the evaporator shell 4, forcing the condensed water to flow faster, thereby improving the drainage efficiency and preventing water droplets from condensing and frosting on the surface of the evaporator shell 4. The airflow formed by the fan blades 15 can also help the surface of the evaporator shell 4 to dissipate heat quickly, keep the surface temperature below the dew point temperature, reduce the occurrence of frost, and extend the service life of the air-conditioning evaporator body 1. By accelerating the flow of condensed water and reducing frost on the surface of the shell, the heat exchange efficiency of the air-conditioning evaporator body 1 can be improved, energy consumption can be reduced, the cooling effect of the air-conditioning system can be improved, and the condensed water can be prevented from condensing and freezing on the outside of the evaporator shell 4.

Claims

1. An anti-frost automobile air-conditioning evaporator, comprising an air-conditioning evaporator body (1), an evaporator pipe (2) is arranged inside the air-conditioning evaporator body (1), a coil (3) is arranged inside the air-conditioning evaporator body (1), an evaporator shell (4) is evenly distributed inside the air-conditioning evaporator body (1), the inside of the evaporator shell (4) is fixedly connected to the outer surface of the evaporator pipe (2), the inside of the evaporator shell (4) is fixedly connected to the outer surface of the coil (3), and an expansion valve (5) is installed on one end surface of the evaporator pipe (2), characterized in that: The outer surface of the evaporator shell (4) is evenly distributed with main drainage grooves (10), the outer surface of the evaporator shell (4) is equipped with a drainage anti-leakage component, and the outer surface of the evaporator shell (4) is equipped with an accelerated anti-frost component.

2. The anti-frost automobile air-conditioning evaporator according to claim 1, characterized in that: The drainage and anti-leakage assembly comprises a first drainage groove (6) and a first baffle (7); the first drainage groove (6) is evenly distributed and opened on the outer surface of the evaporator shell (4); and the first baffle (7) is installed on the inner wall of the first drainage groove (6).

3. The anti-frost automobile air-conditioning evaporator according to claim 2, characterized in that: The outer surface of the evaporator housing (4) is evenly distributed with second drainage grooves (8), the inner wall of the second drainage groove is movably mounted with a second baffle (9), and the interior of the second baffle (9) and the interior of the first baffle (7) are both provided with inclined surfaces (16).

4. The anti-frost automobile air-conditioning evaporator according to claim 1, characterized in that: The accelerated anti-frost assembly comprises a stepper motor (11) and a main rotating shaft (12); the stepper motor (11) is mounted on the outer surface of an evaporator housing (4); the main rotating shaft (12) is mounted on the outer surface of an output end of the stepper motor (11); and the outer surface of the main rotating shaft (12) is in active contact with the interior of the evaporator housing (4).

5. The anti-frost automobile air-conditioning evaporator according to claim 4, characterized in that: A secondary rotating shaft (13) is evenly and movably installed inside the evaporator shell (4), and a driving gear (17) is installed on the outer surface of the main rotating shaft (12).

6. The anti-frost automobile air-conditioning evaporator according to claim 5, characterized in that: A driven gear (18) is mounted on the outer surface of the secondary rotating shaft (13), and a chain (19) is mounted on the outer surface of the driving gear (17) and the outer surface of the driven gear (18) in a manner that allows for movement therebetween.

7. The anti-frost automobile air-conditioning evaporator according to claim 6, characterized in that: The outer surfaces of the main rotating shaft (12) and the outer surfaces of the auxiliary rotating shaft (13) are both mounted with an annular block (14), the outer surfaces of the annular block (14) are in active contact with the inside of the evaporator shell (4), and the bottom end surfaces of the main rotating shaft (12) and the bottom end surfaces of the auxiliary rotating shaft (13) are both mounted with a fan blade (15).

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