Laminated evaporator of automobile air conditioner

Abstract

The utility model discloses a laminated evaporator of an automobile air conditioner, and belongs to the field of evaporators. A laminated evaporator of an automobile air conditioner comprises a protective shell, an evaporation coil pipe is fixed to the inner side of the protective shell, one side of the evaporation coil pipe is connected with an inlet connecting pipe, one side of the evaporation coil pipe is connected with an outlet connecting pipe, a dustproof plate is fixed to the inner side of the protective shell, a miniature fan is fixed to the inner side of the protective shell, and a reserved plate is fixed to the inner side of the protective shell. According to the utility model, the evaporation coil pipe is adopted as a main component for heat exchange, the miniature fan is arranged around the evaporation coil pipe, and an s-shaped air convection flow path is formed through the design of the protection shell and the reserved plate, so that the heat exchange is more uniform, the heat exchange efficiency is improved, and the heat exchange efficiency is improved. The overall performance of the air conditioning system is improved, so that heat in surrounding air can be efficiently absorbed when a refrigerant evaporates under low pressure, and the purpose of rapid cooling is achieved.

Description

Technical Field

[0001] The utility model relates to the field of evaporators, in particular to a laminated evaporator for automobile air conditioners. Background Art

[0002] In traditional automobile air-conditioning systems, the evaporator is generally designed with a flat-plate structure, which exchanges heat with the air through the evaporating coil. However, this traditional method has obvious shortcomings in heat exchange efficiency. Because the air flow of this flat-plate evaporator is mainly laminar during the heat exchange process, there is less momentum exchange between air molecules. The laminar flow characteristics make the heat transfer efficiency low, which in turn affects the overall performance of the evaporator, resulting in relatively low heat exchange efficiency. At the same time, dust and impurities are easily accumulated on the surface of the evaporator, which also affects the heat exchange efficiency. This is mainly because during the driving of the car, dust and particulate matter in the external environment will enter the evaporator with the air, thereby affecting the heat exchange efficiency. The accumulation of these dust and impurities also makes it difficult to clean and maintain the evaporator. Utility Model Content

[0003] The purpose of the utility model is to provide a laminated evaporator for an automobile air conditioner to solve the problems raised in the above background technology.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A laminated evaporator for an automotive air conditioner comprises: a protective shell, an evaporation coil fixed inside the protective shell, an inlet connecting pipe connected to one side of the evaporation coil, an outlet connecting pipe connected to one side of the evaporation coil, a dustproof plate fixed inside the protective shell, a micro fan fixed inside the protective shell, a reserved plate fixed inside the protective shell, a heat sink attached to the outside of the evaporation coil, and a dust collector provided at the bottom of the protective shell;

[0006] The dust collecting device comprises a dust cover, a reserved groove is opened on the dust cover, a handle is fixed on one side of the dust cover, and a dust net is fixed on the inner side of the dust cover.

[0007] When the vehicle's air conditioning system is started, refrigerant enters the evaporator coil through the inlet connection pipe. The evaporator coil is the primary heat exchange component. The refrigerant flowing inside evaporates at low pressure, absorbing heat from the surrounding air, thereby cooling the air. A micro fan activates, drawing the hot air from the vehicle into the protective housing and passing it around the evaporator coil. As the hot air passes through the evaporator coil, its heat is absorbed by the refrigerant, cooling it. The cooled air is then returned to the vehicle through the outlet connection pipe (or nearby air ducts), achieving the desired cooling effect. Before the air enters the evaporator coil, a dust shield acts as a preliminary filter, preventing larger dust and impurities from entering the protective housing, reducing contamination of the evaporator coil and micro fan. A dust collection device further enhances air filtration effectiveness.

[0008] Preferably, the dustproof nets are provided in several groups and arranged in a rectangular array.

[0009] Preferably, the dust cover and dust net are made of polypropylene.

[0010] The dust screen on the dust cover is composed of multiple groups of fine mesh arranged in a rectangular array. It effectively captures tiny airborne particles such as dust and pollen, preventing them from entering the evaporator coil area and maintaining air cleanliness. When dust accumulates on the dust screen, you can remove the dust cover from the bottom of the protective shell by grasping the handle and clean or replace it to ensure continued effective filtering.

[0011] Preferably, the reserved plate is located between the evaporating coils.

[0012] The reserved plate is located between the evaporating coils, which not only plays a supporting and fixing role, but also optimizes the air flow path, allowing air to pass through the evaporating coils more evenly and improve the heat exchange effect.

[0013] Preferably, a fixing rod is fixed on the inner side of the heat sink.

[0014] The heat sink is firmly mounted on the evaporator coil via fixing rods to ensure that it will not loosen or deform during operation.

[0015] Preferably, the reserved plate is made of high-strength alloy material.

[0016] The reserved plate is made of high-strength alloy material, which ensures the strength and durability of its structure.

[0017] Preferably, the protective shell is provided with a plurality of holes corresponding to the evaporating coils.

[0018] Compared with the prior art, the present invention provides a laminated evaporator for automobile air conditioner, which has the following beneficial effects:

[0019] 1. The present invention adopts an evaporating coil as the main component for heat exchange, and arranges a micro fan around it. The design of the protective shell and the reserved plate forms an S-shaped air convection flow path, which makes the heat exchange more uniform and improves the overall performance of the air-conditioning system. When the refrigerant evaporates under low pressure, it can efficiently absorb heat from the surrounding air, thereby achieving the purpose of rapid cooling. Compared with the existing technology, the present invention has higher heat exchange efficiency and can provide a cool environment in the vehicle more quickly.

[0020] 2. The utility model adds a dustproof plate and a dust collecting device. When a lot of dust accumulates on the dustproof net, the dust cover can be removed from the bottom of the protective shell by holding the handle for cleaning or replacement to ensure its continued effective filtering effect. It also effectively blocks dust and impurities in the air from entering the heat exchange area, reduces the pollution of the evaporating coil and micro fan, improves the cleanliness and service life of the air-conditioning system, and solves the problem of poor heat exchange efficiency caused by dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of a laminated evaporator for an automobile air conditioner proposed by the present utility model;

[0022] Figure 2 This is a schematic diagram of the front elevation structure of a laminated evaporator for an automobile air conditioner proposed by the present utility model;

[0023] Figure 3 This is a schematic cross-sectional view of a laminated evaporator for an automobile air conditioner proposed in the present invention;

[0024] Figure 4 This is a schematic diagram of the explosion structure of a laminated evaporator for an automobile air conditioner proposed in the utility model;

[0025] Figure 5 This is a schematic diagram of the exploded structure of a laminated evaporator for an automobile air conditioner proposed in the present invention;

[0026] Figure 6 This is a schematic diagram of the exploded structure of a laminated evaporator for an automobile air conditioner proposed by the utility model.

[0027] In the figure: 1. Protective shell; 2. Evaporating coil; 3. Inlet connecting pipe; 4. Outlet connecting pipe; 5. Dustproof plate; 6. Micro fan; 7. Dust collecting device; 71. Dust cover; 72. Reserved slot; 73. Handle; 74. Dust net; 8. Reserved plate; 9. Heat sink; 10. Fixing rod. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. Example

[0030] refer to Figures 1-6 A laminated evaporator for an automobile air conditioner comprises: a protective shell 1, an evaporating coil 2 fixed on the inner side of the protective shell 1, an inlet connecting pipe 3 connected to one side of the evaporating coil 2, an outlet connecting pipe 4 connected to one side of the evaporating coil 2, a dustproof plate 5 fixed on the inner side of the protective shell 1, a micro fan 6 fixed on the inner side of the protective shell 1, a reserved plate 8 fixed on the inner side of the protective shell 1, a heat sink 9 attached to the outer side of the evaporating coil 2, and a dust collecting device 7 provided on the bottom of the protective shell 1;

[0031] The dust collecting device 7 includes a dust cover 71 . A reserved slot 72 is formed on the dust cover 71 . A handle 73 is fixed to one side of the dust cover 71 . A dust net 74 is fixed to the inner side of the dust cover 71 .

[0032] When the vehicle's air conditioning system is activated, refrigerant enters the evaporator coil 2 through the inlet connecting pipe 3. The evaporator coil 2 is the primary heat exchange component. The refrigerant flowing within it evaporates at low pressure, absorbing heat from the surrounding air, thereby cooling the air. A micro-fan 6 activates, drawing the hot air from the vehicle into the protective shell 1 and passing it around the evaporator coil 2. As the hot air passes through the evaporator coil 2, its heat is absorbed by the refrigerant, cooling it. The cooled air is then returned to the vehicle through the outlet connecting pipe 4 (or a nearby air duct), achieving the desired cooling effect. Before the air enters the evaporator coil 2, a dust shield 5 acts as a preliminary filter, preventing larger dust and impurities from entering the protective shell 1, reducing contamination of the evaporator coil 2 and the micro-fan 6. A dust collector 7 further enhances the air filtration effect.

[0033] The dustproof nets 74 are provided in several groups and arranged in a rectangular array.

[0034] The dust cover 71 and the dust net 74 are made of polypropylene.

[0035] The dust screen 74 on the dust cover 71 is composed of multiple groups of fine mesh arranged in a rectangular array. It effectively captures tiny airborne particles, such as dust and pollen, preventing them from entering the evaporating coil 2 area, thereby maintaining air cleanliness. When dust screen 74 accumulates excessively, the dust cover 71 can be removed from the bottom of the protective housing 1 by grasping handle 73 for cleaning or replacement to ensure continued effective filtering.

[0036] The reserved plate 8 is located between the evaporating coils 2 .

[0037] The reserved plate 8 is located between the evaporating coils 2, which not only plays a supporting and fixing role, but also optimizes the air flow path, allowing the air to pass through the evaporating coils 2 more evenly, thereby improving the heat exchange effect.

[0038] A fixing rod 10 is fixed to the inner side of the heat sink 9 .

[0039] The heat sink 9 is securely mounted on the evaporation coil 2 via a fixing rod 10 to ensure that it does not become loose or deformed during operation.

[0040] The reserved plate 8 is made of high-strength alloy material.

[0041] The reserved plate 8 is made of high-strength alloy material, which ensures the strength and durability of its structure.

[0042] The protective shell 1 is provided with a plurality of holes corresponding to the evaporating coils 2 .

[0043] Working principle: Please refer to Figures 1-6 As shown, when the vehicle's air conditioning system is activated, refrigerant enters the evaporator coil 2 through the inlet connection pipe 3. The evaporator coil 2 is the primary heat exchange component. The refrigerant flowing within it evaporates at low pressure, absorbing heat from the surrounding air, thereby cooling the air. A micro fan 6 is activated, drawing the hot air from the vehicle into the protective housing 1 and passing it around the evaporator coil 2. As the hot air passes through the evaporator coil 2, its heat is absorbed by the refrigerant, thereby cooling the air.

[0044] The cooled air is then returned to the vehicle interior through outlet connection pipe 4 (or a nearby air duct), achieving cooling. Before the air enters the evaporating coil 2, the dust shield 5 acts as a preliminary filter, preventing larger dust and impurities from entering the protective housing 1, reducing contamination of the evaporating coil 2 and miniature fan 6. The dust collection device 7 further enhances the air filtration effect. The dust screen 74 on the dust cover 71 consists of multiple groups of fine mesh arranged in a rectangular array, effectively capturing tiny airborne particles such as dust and pollen, preventing them from entering the evaporating coil 2 area and maintaining air cleanliness.

[0045] When dust accumulates on the dust screen 74, the dust cover 71 can be removed from the bottom of the protective shell 1 by holding the handle 73 for cleaning or replacement to ensure continued effective filtering. The heat sink 9 attached to the outside of the evaporating coil 2 increases the heat exchange area and improves the heat exchange efficiency.

[0046] The heat sink 9 is securely attached to the evaporator coil 2 via fixing rods 10, ensuring it will not loosen or deform during operation. The reserved plate 8, located between the evaporator coils 2, not only provides support and fixation but also optimizes the air flow path, ensuring a more even flow through the evaporator coils 2 and enhancing heat exchange. The reserved plate 8 is made of a high-strength alloy, ensuring its structural strength and durability.

Claims

1. A laminated evaporator for an automobile air conditioner, comprising: A protective shell (1), wherein an evaporating coil (2) is fixed on the inner side of the protective shell (1), an inlet connecting pipe (3) is connected to one side of the evaporating coil (2), an outlet connecting pipe (4) is connected to one side of the evaporating coil (2), a dustproof plate (5) is fixed on the inner side of the protective shell (1), and a micro fan (6) is fixed on the inner side of the protective shell (1), characterized in that a reserved plate (8) is fixed on the inner side of the protective shell (1), a heat sink (9) is attached to the outer side of the evaporating coil (2), and a dust collecting device (7) is provided at the bottom of the protective shell (1); The dust collecting device (7) comprises a dust cover (71), a reserved groove (72) is provided on the dust cover (71), a handle (73) is fixed on one side of the dust cover (71), and a dust net (74) is fixed on the inner side of the dust cover (71).

2. The automotive air-conditioning stacked evaporator according to claim 1, characterized in that: The dustproof nets (74) are provided in a plurality of groups and arranged in a rectangular array.

3. The automotive air-conditioning stacked evaporator according to claim 1 or 2, characterized in that: The dust cover (71) and the dust net (74) are made of polypropylene material.

4. The automotive air-conditioning stacked evaporator according to claim 1, characterized in that: The reserved plate (8) is located between the evaporating coils (2).

5. The automotive air-conditioning stacked evaporator according to claim 1, characterized in that: A fixing rod (10) is fixed on the inner side of the heat sink (9).

6. The automotive air-conditioning stacked evaporator according to claim 1 or 4, characterized in that: The reserved plate (8) is made of high-strength alloy material.

7. The automotive air-conditioning stacked evaporator according to claim 1, characterized in that: The protective shell (1) is provided with a plurality of holes corresponding to the evaporating coil (2).

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