Novel built-in air conditioner assembly

Abstract

A novel built-in air conditioner assembly comprises an upper shell assembly and a lower shell assembly, and a micro-channel heat exchanger, a left evaporation fan and a right evaporation fan are installed in the upper shell assembly and the lower shell assembly. Wherein the micro-channel heat exchanger is provided with a left blow-off pipe assembly and a right blow-off pipe assembly, and an inlet and an outlet of the micro-channel heat exchanger are respectively provided with an expansion valve; the left evaporation fan communicates with the left air channel, the right evaporation fan communicates with the right air channel, and the left evaporation fan and the right evaporation fan are connected with the speed regulation module through wire harnesses correspondingly. According to the utility model, smaller size and lighter weight can be realized, and the arrangement flexibility of the built-in air conditioner and the space performance of the whole vehicle are improved; by applying the micro-channel heat exchanger, the heat exchange efficiency is improved, and meanwhile the size is minimum; the air conditioner shell is of a semi-closed structural design, the air inlet side of the heat exchanger is exposed, and the size of the shell is reduced while the best air inlet effect is achieved; the design mode that the fan is arranged inside is adopted, so that air passing of the core body is more uniform, heat exchange is better, noise is lower, and meanwhile the size of the air handling unit assembly is reduced.

Description

Technical Field

[0001] The utility model relates to an air conditioner, in particular to a novel built-in air conditioner assembly. Background Art

[0002] As an important means of road transportation, buses are widely used and occupy a significant position in my country's passenger transport industry. Buses typically carry not only passengers but also freight, making their space performance a key concern for customers. This has necessitated technological upgrades to buses, reducing the size of individual components or integrating them into a design to increase interior space. The air conditioner, a crucial component for interior air conditioning in buses, also has a significant impact on the vehicle's overall space performance.

[0003] Currently, commercial vehicles widely utilize built-in air conditioners for passenger compartment cooling. This arrangement places high demands on the air conditioner's structure, size, and weight. The industry typically utilizes enclosed air conditioner boxes, which are typically large and infringe on the interior space, impacting passenger comfort. Furthermore, due to size issues, these units are less versatile.

[0004] As an innovative technology in the field of heat exchange, microchannel heat exchangers are becoming a key device driving energy conservation and efficiency improvements across various industries. Their core design lies in their unique microchannel structure, whose dimensions are as precise as millimeters, providing a solid foundation for efficient heat transfer. Therefore, the development and application of microchannel evaporators based on traditional automotive air conditioning technology, achieving equivalent heat transfer performance in a smaller size and increasing interior space, is a major trend.

[0005] However, microchannel evaporators are not currently used in large quantities in my country's passenger car air-conditioning sector, and conventional fin-and-tube heat exchangers have low heat exchange efficiency. Moreover, existing technical products generally have larger evaporation assemblies for the same heat exchange capacity, occupying a large amount of carriage space, making layout difficult and having poor versatility. Utility Model Content

[0006] The technical problem to be solved by the utility model is: to provide a novel built-in air conditioner assembly in view of the problems that the existing built-in air conditioners are large in size and poor in installation versatility.

[0007] To achieve the above-mentioned purpose, the present invention is realized through the following technical solutions:

[0008] A new type of built-in air conditioning assembly includes upper and lower shell components, in which a microchannel heat exchanger, a left evaporating fan and a right evaporating fan are installed; wherein,

[0009] The microchannel heat exchanger is provided with a left water discharge pipe assembly and a right water discharge pipe assembly, and expansion valves are respectively provided at the inlet and outlet positions of the microchannel heat exchanger;

[0010] The left evaporator fan is connected to the left air duct, the right evaporator fan is connected to the right air duct, and the left evaporator fan and the right evaporator fan are respectively connected to the speed control module through a wiring harness.

[0011] The left sides of the upper and lower shell assemblies are respectively connected to the left front mounting bracket and the left rear mounting bracket, the left drain pipe assembly is connected to the left front mounting bracket, and the left expansion valve is connected to the left rear mounting bracket; the right sides of the upper and lower shell assemblies are connected to the right front mounting bracket and the right rear mounting bracket, the right drain pipe assembly is connected to the right front mounting bracket, and the right expansion valve is connected to the right rear mounting bracket.

[0012] The upper and lower shell components are semi-open structures, and the microchannel heat exchanger is mounted inside the upper and lower shell components.

[0013] The microchannel heat exchanger is installed obliquely in the upper and lower shell components.

[0014] Compared with the existing technology, the present invention has the following beneficial effects: it proposes a new type of built-in air-conditioning assembly, which can achieve smaller size and lighter weight, improve the layout flexibility of the built-in air conditioner and the space performance of the whole vehicle. Specifically,

[0015] 1. Apply microchannel heat exchanger to improve heat transfer efficiency while minimizing size;

[0016] 2. The air conditioner shell adopts a semi-enclosed structure design, and the heat exchanger is exposed on the air inlet side, which can achieve the best air intake effect while reducing the shell size;

[0017] 3. The design of built-in fan makes the air flow through the core more uniform, heat exchange better, noise lower, and reduces the size of the air conditioning box assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the structural diagram of the built-in air conditioner assembly of the utility model;

[0019] Figure 2 This is the installation diagram of the built-in air conditioning fan;

[0020] Figure 3 It is a structural schematic diagram of the upper and lower shell components. DETAILED DESCRIPTION

[0021] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0022] 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.

[0023] like Figure 1 、 Figure 2 As shown, a new type of built-in air conditioning assembly includes upper and lower shell components 6, in which a microchannel heat exchanger 11, a left evaporating fan 14 and a right evaporating fan 15 are installed.

[0024] The microchannel heat exchanger 11 is provided with a left drain pipe assembly 1 and a right drain pipe assembly 8, and expansion valves 13 are respectively provided at the inlet and outlet positions of the microchannel heat exchanger 11, and the expansion valves 13 are used to throttle the refrigerant.

[0025] The left evaporator fan 14 is connected to the left air duct 3, the right evaporator fan 15 is connected to the right air duct 5, and the left evaporator fan 14 and the right evaporator fan 15 are respectively connected to the speed control module 4 through wiring harnesses. The speed control module 4 controls the different gear adjustments of the left evaporator fan 14 and the right evaporator fan 15 through electrical signals to achieve adjustment of different air volume requirements of the whole vehicle.

[0026] Furthermore, the left sides of the upper and lower housing assemblies 6 are respectively connected to the left front mounting bracket 2 and the left rear mounting bracket 12, the left drain pipe assembly 1 is connected to the left front mounting bracket 2, and the left expansion valve 13 is connected to the left rear mounting bracket 12. The right sides of the upper and lower housing assemblies 6 are connected to the right front mounting bracket 7 and the right rear mounting bracket 10, the right drain pipe assembly 8 is connected to the right front mounting bracket 7, and the right expansion valve 13 is connected to the right rear mounting bracket 10.

[0027] Furthermore, the left rear mounting bracket 12, the right rear mounting bracket 10, the left front mounting bracket 2, the right front mounting bracket 7, the left air duct 3, and the right air duct 5 are fixed together by screws.

[0028] Furthermore, the wiring harness of the right drain pipe assembly 8 and the speed control module 4 are connected to the bracket 9. The bracket 9 is used to clamp the wiring harness plug-in and the right drain pipe assembly 8 to ensure the direction of the wiring harness and the right drain pipe, which is convenient for drainage and wiring harness connection of the entire vehicle.

[0029] Furthermore, the upper and lower shell components 6 are semi-open structures, which serve as a carrier to mount the microchannel heat exchanger 11 inside. Figure 3 shown.

[0030] Furthermore, the microchannel heat exchanger 11 is installed at an angle in the upper and lower shell components 6, that is, it is designed to be tilted at a certain angle. On the one hand, the condensed water generated by the microchannel heat exchanger 11 can be discharged smoothly, and at the same time, the thickness of the evaporator assembly can be reduced. The overall weight is reduced by more than 70% compared with conventional products.

[0031] Furthermore, the left evaporator fan 14 and the right evaporator fan 15 are mounted inside the upper and lower shell assemblies 6. On the one hand, the increase in boundary size caused by the external placement of the fan is reduced. On the other hand, the heat transfer uniformity of the microchannel heat exchanger 11 can be improved by suction. At the same time, the cold air after passing through the microchannel heat exchanger 11 can cool the evaporator fan itself, thereby improving the durability of the fan.

[0032] It should be noted that in the present invention, the specifications of the microchannel heat exchanger 11, the number (specifications) of the left evaporating fan 14 and the right evaporating fan 15 and their arrangement positions are not exclusive and are not limited to the positions in the description and the drawings. They can be flexibly adjusted according to different vehicle models to meet different heat exchange requirements.

[0033] Compared with traditional bus air conditioners, the utility model can improve heat exchange efficiency and reduce the boundary size of the evaporator box on the one hand; on the other hand, the structure is simple to install and has good versatility, which is suitable for installation and layout requirements of different vehicle models.

[0034] 1. Apply microchannel heat exchanger to improve heat transfer efficiency while achieving optimal size;

[0035] 2. The built-in evaporating fan adopts the suction method to make the air flow through the heat exchanger more uniform, improve the heat exchange efficiency, and on the other hand, reduce the boundary size of the air conditioning box;

[0036] 3. The semi-open shell ensures the ventilation effect of the core while reducing the shell size and significantly reducing the weight of the air conditioning box assembly;

[0037] 4. The evaporating fan is built into the inner side of the shell. On the one hand, it reduces the heat dissipation of the fan itself by cooling the air, which improves the life of the fan to a certain extent. On the other hand, the built-in fan also minimizes the assembly noise.

[0038] The above is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several changes and improvements can be made without departing from the overall concept of the present invention, and these should also be regarded as the scope of protection of the present invention.

Claims

1. A new type of built-in air conditioning assembly, characterized by: It comprises upper and lower shell components (6), in which a microchannel heat exchanger (11), a left evaporation fan (14) and a right evaporation fan (15) are installed; wherein, The microchannel heat exchanger (11) is provided with a left water discharge pipe assembly (1) and a right water discharge pipe assembly (8), and expansion valves (13) are respectively provided at the inlet and outlet positions of the microchannel heat exchanger (11); The left evaporation fan (14) is connected to the left air duct (3), the right evaporation fan (15) is connected to the right air duct (5), and the left evaporation fan (14) and the right evaporation fan (15) are respectively connected to the speed control module (4) through a wiring harness.

2. A new type of built-in air conditioning assembly according to claim 1, characterized in that: The left sides of the upper and lower shell assemblies (6) are respectively connected to a left front mounting bracket (2) and a left rear mounting bracket (12), the left water discharge pipe assembly (1) is connected to the left front mounting bracket (2), and the left expansion valve (13) is connected to the left rear mounting bracket (12); the right sides of the upper and lower shell assemblies (6) are connected to a right front mounting bracket (7) and a right rear mounting bracket (10), the right water discharge pipe assembly (8) is connected to the right front mounting bracket (7), and the right expansion valve (13) is connected to the right rear mounting bracket (10).

3. The novel built-in air conditioning assembly according to claim 1 is characterized in that: The upper and lower shell components (6) are semi-open structures, and the microchannel heat exchanger (11) is mounted inside the upper and lower shell components (6).

4. The novel built-in air conditioning assembly according to claim 1, characterized in that: The microchannel heat exchanger (11) is installed obliquely in the upper and lower shell components (6).

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