Universal passenger car air duct

Abstract

The utility model discloses a universal passenger car air duct which comprises an air duct plate and a fixing strip which are fixed in a car body, an air outlet is formed in the air duct plate, the fixing strip is fixed at the top of the car body, one side of the air duct plate is fixed on the inner side wall of the car body, a clamping groove is formed in the fixing strip, and the clamping groove is matched with the air outlet. The other side of the air duct plate is clamped into the clamping groove of the fixing strip; the air duct plate comprises a first aluminum plate layer, a second aluminum plate layer and a third plastic layer which are fixedly connected into a whole, and the third plastic layer is located between the first aluminum plate layer and the second aluminum plate layer. The aluminum plate layers are arranged on the upper surface and the lower surface of the third plastic layer of the air duct plate, so that the overall structural strength is improved, a hoisting framework is not needed for hoisting, and the surface is not cracked during bending; during mounting, one side of the air duct plate is clamped into the fixing strip, and one end is connected by a screw, thereby facilitating assembly; the air duct plate adopts a standard length and can adapt to vehicle bodies of different models and different lengths through splicing.

Description

Technical Field

[0001] This utility model relates to the technical field of bus air duct structure, specifically to a general-purpose bus air duct. Background Technology

[0002] The air duct is an important component of the bus air conditioning system. Its main function is to connect to the air outlet of the air conditioner and deliver treated air into the bus interior to achieve ventilation, cooling, and heating. The existing bus air duct structure involves fixing a hoisting frame to both sides of the bus roof, and then fixing the extruded curved plates made of polystyrene board to the hoisting frame, so that the curved plates and the corners of the bus roof form a ventilation duct.

[0003] For example, Chinese Patent Publication No. CN212073598U discloses a bus air duct installation structure, which uses an arc-shaped plate fixed to a hoisting frame composed of multiple profile skeletons for installation. Another example is a bus air conditioning cooling air duct device disclosed in Chinese Patent Publication No. CN210706781U, where the air duct plate is also connected to the bus roof via a reinforcing bracket. In these disclosed devices, to fix the air duct plate, a hoisting frame is fixed to the bus roof, and then the air duct plate is fixed to the hoisting frame. In such structures, the individual plastic air duct plate is prone to deformation without frame support, necessitating the use of a hoisting frame, resulting in more components required for assembly and complex installation. Utility Model Content

[0004] The purpose of this utility model is to solve the above-mentioned technical problems and provide a universal bus air duct.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A universal bus air duct includes an air duct plate and a fixing strip fixed inside the vehicle body. The air duct plate has an air outlet. The fixing strip is fixed to the top of the vehicle body. One side of the air duct plate is fixed to the inner side wall of the vehicle body. The fixing strip has a slot. The other side of the air duct plate is inserted into the slot of the fixing strip. The air duct plate includes a first aluminum plate layer, a second aluminum plate layer and a third plastic layer that are fixed together. The third plastic layer is located between the first aluminum plate layer and the second aluminum plate layer.

[0007] Furthermore, the thickness of the first aluminum plate layer is 0.28 mm, the thickness of the second aluminum plate layer is 0.28 mm, and the thickness of the third plastic layer is 2.04 mm.

[0008] Furthermore, the air duct plate is formed by bending into a first folded edge section, a first folded plate section, a second folded plate section, and a second folded edge section that are connected in sequence. The first folded plate section and the second folded plate section have an arched structure in the direction away from the top of the vehicle body to form a ventilation cavity. The first folded edge section is inserted into a fixing strip, and the second folded edge section is fixed to the side wall of the vehicle body.

[0009] Furthermore, the fixing strip includes an integrally formed first flat plate portion and a second flat plate portion, with a groove formed between the first flat plate portion and the second flat plate portion. The width of the first flat plate portion is greater than that of the second flat plate portion, and the first flat plate portion is fixed to the roof of the vehicle body by screws.

[0010] Furthermore, the air duct plate is configured as a multi-segment structure, and adjacent air duct plates are spliced ​​together by snap-fit ​​profiles; snap-fit ​​grooves for snapping air duct plates are provided on both sides of the snap-fit ​​profiles.

[0011] This utility model provides a universal bus air duct with the following advantages: The air duct panel has aluminum plate layers on the upper and lower surfaces of the third plastic layer, improving the overall structural strength and eliminating the need for a hoisting frame; the aluminum plate has better ductility than the plastic plate, preventing surface cracking during bending; during installation, one side of the air duct panel is inserted into the fixing strip, and the other end is connected with screws, eliminating the need for screws at both ends, thus facilitating assembly; the air duct panel uses a standard length, and different lengths can be assembled by splicing the pre-formed air duct panels to meet different length requirements for different vehicle models, adapting to different vehicle body lengths; because each section of the air duct panel is a standard structure, it solves the problem of difficult transportation of the entire air duct system, allowing for stacking and packaging of air duct panels of the same length, reducing transportation space and facilitating transport. Attached Figure Description

[0012] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings:

[0013] Figure 1 A schematic diagram of the structure of a universal bus air duct and its fit with the vehicle body, provided by this utility model;

[0014] Figure 2 for Figure 1 Schematic diagram of a partial structure at part A in the middle;

[0015] Figure 3 A schematic diagram of the end face structure of the air duct plate in a general-purpose bus air duct provided by this utility model;

[0016] Figure 4 A three-dimensional structural diagram of a general-purpose bus air duct duct plate provided by this utility model;

[0017] Figure 5This utility model provides a partial cross-sectional structural diagram of the air duct plate and the snap-fit ​​profile in a general-purpose bus air duct.

[0018] The following are the labels in the diagram: 1. Vehicle body; 2. Air duct plate; 21. Air outlet; 22. First aluminum plate layer; 23. Second aluminum plate layer; 24. Third plastic layer; 25. First folded edge section; 26. First folded plate section; 27. Second folded plate section; 28. Second folded edge section; 3. Fixing strip; 31. Slot; 32. First flat plate section; 33. Second flat plate section; 4. Snap-fit ​​profile; 41. Snap-fit ​​groove. Detailed Implementation

[0019] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0020] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0021] It should be noted that all directional indications (such as up-down-left-right-forward-backward...) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly. The connection can be a direct connection or an indirect connection.

[0022] like Figures 1-5 As shown, a general-purpose bus air duct includes an air duct plate 2 and a fixing strip 3 fixed inside the vehicle body 1. The air duct plate 2 has an air outlet 21. The fixing strip 3 is fixed to the top of the vehicle body 1. One side of the air duct plate 2 is fixed to the inner side wall of the vehicle body 1. The fixing strip 3 is provided with a slot 31. The other side of the air duct plate 2 is inserted into the slot 31 of the fixing strip 3. The air duct plate 2 includes a first aluminum plate layer 22, a second aluminum plate layer 23 and a third plastic layer 24 that are fixed together. The third plastic layer 24 is located between the first aluminum plate layer 22 and the second aluminum plate layer 23.

[0023] By adopting the above technical solution, aluminum plate layers are set on the upper and lower surfaces of the third plastic layer 24 to improve the overall structural strength, thus eliminating the need for hoisting the frame; since the aluminum plate has better ductility than the plastic plate, the surface does not crack when bent; during installation, one side of the air duct plate 2 is inserted into the fixing strip 3, and the other end is connected with a screw, eliminating the need to connect both ends with screws, which facilitates assembly.

[0024] The first aluminum plate layer 22 has a thickness of 0.28 mm, the second aluminum plate layer 23 has a thickness of 0.28 mm, and the third plastic layer 24 has a thickness of 2.04 mm. The thickness of the first aluminum plate layer 22 and the second aluminum plate layer 23 is less than the thickness of the third plastic layer 24, which makes the overall structure lightweight and achieves high strength with a low proportion of aluminum material, thus meeting the structural connection strength requirements.

[0025] The air duct plate 2 is formed by bending into a first folded edge segment 25, a first folded plate segment 26, a second folded plate segment 27, and a second folded edge segment 28 connected in sequence. The first folded plate segment 26 and the second folded plate segment 27 arch away from the top of the vehicle body 1 to form a ventilation cavity. The first folded edge segment 25 is inserted into the fixing strip 3, and the second folded edge segment 28 is fixed to the side wall of the vehicle body 1. The multi-segment structure of the air duct plate 2 is formed by bending, which is simple to process and convenient for overlapping.

[0026] The fixing strip 3 includes an integrally formed first flat plate portion 32 and a second flat plate portion 33. A groove 31 is formed between the first flat plate portion 32 and the second flat plate portion 33. The width of the first flat plate portion 32 is greater than that of the second flat plate portion 33. The first flat plate portion 32 is fixed to the roof of the vehicle body 1 by screws. The width of the first flat plate portion 32 is greater than that of the second flat plate portion 33, so that a portion of the plate of the first flat plate portion 32 is exposed outside the second flat plate portion 33, which facilitates the first screw to pass through the exposed portion of the first flat plate portion 32 and fix the first flat plate portion 32 to the roof during installation.

[0027] The air duct plate 2 is configured as a multi-segment structure, with adjacent air duct plates 2 spliced ​​together by snap-fit ​​profiles 4. The snap-fit ​​profiles 4 have snap-fit ​​grooves 41 on both sides for attaching the air duct plates 2, and the overall snap-fit ​​profiles 4 have an I-shaped structure. Splicing via snap-fit ​​profiles 4 eliminates the need for screw connections, making installation convenient. Furthermore, the air duct plates 2 use a standard length, and by splicing them into different lengths, different vehicle models can use the assembled air duct plates 2 to meet different length requirements, adapting to vehicle bodies 1 of different lengths. Because each segment of the air duct plate 2 is a standard structure, it solves the previous problem of difficult transportation of whole air ducts, allowing air duct plates 2 of the same length to be stacked and packaged for transportation, reducing the space occupied during transport and facilitating transportation.

[0028] The parts not covered in this technical solution can be implemented using existing technologies.

[0029] The foregoing has shown and described the basic principles, main features, and characteristics of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model includes the appended claims and their equivalents.

Claims

1. A universal passenger car air duct, characterized in that: The system includes a duct plate (2) and a fixing strip (3) fixed inside the vehicle body (1). The duct plate (2) has an air outlet (21). The fixing strip (3) is fixed to the top of the vehicle body (1). One side of the duct plate (2) is fixed to the inner side wall of the vehicle body (1). The fixing strip (3) has a slot (31). The other side of the duct plate (2) is inserted into the slot (31) of the fixing strip (3). The duct plate (2) includes a first aluminum plate layer (22), a second aluminum plate layer (23) and a third plastic layer (24) that are fixed together. The third plastic layer (24) is located between the first aluminum plate layer (22) and the second aluminum plate layer (23).

2. The universal bus ventilation duct according to claim 1, characterized in that: The first aluminum plate layer (22) has a thickness of 0.28 mm, the second aluminum plate layer (23) has a thickness of 0.28 mm, and the third plastic layer (24) has a thickness of 2.04 mm.

3. The universal bus ventilation duct according to claim 1, characterized in that: The air duct plate (2) is formed by bending into a first folded edge section (25), a first folded plate section (26), a second folded plate section (27), and a second folded edge section (28) connected in sequence. The first folded plate section (26) and the second folded plate section (27) arch towards the top of the vehicle body (1) to form a ventilation cavity. The first folded edge section (25) is inserted into the fixing strip (3), and the second folded edge section (28) is fixed to the side wall of the vehicle body (1).

4. A universal bus ventilation duct according to claim 1, characterized in that: The fixing strip (3) includes an integrally formed first flat plate (32) and second flat plate (33), a slot (31) is formed between the first flat plate (32) and the second flat plate (33), the width of the first flat plate (32) is greater than that of the second flat plate (33), and the first flat plate (32) is fixed to the roof of the vehicle body (1) by screws.

5. A universal bus ventilation duct according to any one of claims 1-4, characterized in that: The air duct plate (2) is configured as a multi-segment structure, and adjacent air duct plates (2) are spliced ​​together by snap-fit ​​profiles (4); the snap-fit ​​profiles (4) have snap-fit ​​grooves (41) on both sides for snapping the air duct plates (2).

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