Hot air backflow baffle and heavy truck body front end wind shielding system comprising same

Abstract

The utility model discloses a hot air backflow baffle which is composed of three baffle assemblies located above a cooling module and located on the left side and the right side of the cooling module. The baffle assembly comprises a polyurethane foam plate, a metal plate pressing plate and a metal plate mounting bracket; a plurality of sleeves are arranged on the metal plate pressing plate, a via hole is formed in the polyurethane foam plate, a through hole is formed in the metal plate mounting support, and a hexagon bolt penetrates through the through hole, the via hole and the sleeves and then is in fastening connection with a hexagon nut. The utility model further discloses a heavy truck body front end wind blocking system which comprises a hot air backflow baffle, a cab heat insulation plate, a fender and a cooling module. By using the polyurethane foam plate, the metal plate pressing plate and the metal plate mounting bracket in a combined manner, a complicated mold development process is avoided, so that the initial development cost is greatly reduced; according to the structural design, the baffle can be better matched with the cab, the problem that in traditional design, the matching degree of the baffle and the cab is not high is solved, the phenomenon that the baffle falls down in the using process is effectively prevented, and the stability of the baffle is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of heavy truck engine cooling systems, and particularly relates to a hot air reflux baffle and a front windshield system of a heavy truck body including the same. Background Art

[0002] Due to the large output horsepower of heavy truck engines, relatively more heat is generated, and an effective cooling system is required to remove this heat. However, due to the layout limitations of the frame and engine compartment of heavy trucks, the cooling system often faces the challenge of hot air reflux, which reduces the cooling efficiency. To reduce this phenomenon, a special hot air reflux baffle needs to be developed. However, the high mold cost has always been the main obstacle to promoting this device, especially for models with a small market share.

[0003] There are currently two main design schemes for hot air reflux baffles of heavy trucks on the market:

[0004] The first scheme is a molded part formed by combining a metal bracket and foam through a vulcanization process. The advantage of this design is its high matching degree with the cab, which can provide good sealing performance and can adapt to complex installation environments. However, the cost of this scheme is relatively high.

[0005] The second scheme is a combination of a rubber skin and a metal bracket. This design avoids a complex mold opening process or only requires partial mold opening, so the cost is relatively low. However, its disadvantage is that its cooperation with the cab is not as tight as the first scheme, and it is prone to lodging during use, resulting in poor sealing performance. Summary of the Invention

[0006] To solve the above technical problems, the utility model provides a hot air reflux baffle and a front windshield system of a heavy truck body including the same. To have a basic understanding of some aspects of the disclosed embodiments, a simple summary is given below. This summary part is not a general review, nor is it intended to identify key / important constituent elements or delineate the protection scope of these embodiments. Its sole purpose is to present some concepts in a simple form as a preamble to the subsequent detailed description.

[0007] The utility model adopts the following technical solutions:

[0008] Provide a hot air reflux baffle, which is composed of three baffle assemblies located above and on the left and right sides of the cooling module;

[0009] The baffle assembly includes: a polyurethane foam board, a sheet metal pressing plate, and a sheet metal mounting bracket;

[0010] A number of sleeves are provided on the sheet metal pressing plate. Through holes are provided in the polyurethane foam board at positions corresponding to the sleeves. The sleeves are embedded in the through holes. Through holes are provided in the sheet metal mounting bracket at positions corresponding to the sleeves. A hexagonal bolt passes through the through hole, the through hole and the sleeve and is fixedly connected with a hexagonal nut.

[0011] Furthermore, the sheet metal mounting bracket includes: a bracket body, and a mounting plate member perpendicular to the bracket body extends from one side of the bracket body facing the cooling module. Mounting holes are provided on the mounting plate member.

[0012] Furthermore, the thickness of the polyurethane foam board is 5 mm - 10 mm.

[0013] Furthermore, the height of the sleeve is less than the thickness of the polyurethane foam board.

[0014] Furthermore, the number of the sleeves is three.

[0015] A front windshield system for a heavy truck body is further provided, including: a cooling module and the hot air return baffle as described above. The hot air return baffle is composed of three baffle assemblies located above and on the left and right sides of the cooling module.

[0016] Furthermore, the front windshield system for a heavy truck body as described above further includes: a cab heat insulation board, and the cab heat insulation board is arranged above the engine.

[0017] Furthermore, the front windshield system for a heavy truck body as described above further includes: mudguards, and the mudguards are arranged on both sides of the engine.

[0018] The beneficial effects brought by the present utility model:

[0019] 1. By combining the use of a polyurethane foam board, a sheet metal pressing plate and a sheet metal mounting bracket, the complex mold development process is avoided, thereby greatly reducing the initial development cost;

[0020] 2. The structural design of the present application can better cooperate with the cab, solves the problem of low cooperation degree between the baffle and the cab in the traditional design, and effectively prevents the baffle from falling down during use, ensuring the stability of the baffle;

[0021] 3. The installation method is simple and fast, convenient for maintenance and replacement. The overall structural design is firm and stable, and can maintain good performance during the operation of the vehicle. Description of the Drawings

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0023] Figure 1 is a schematic structural diagram of a hot air return baffle of the present invention;

[0024] Figure 2 is a schematic structural diagram of a front windshield system of a heavy truck body of the present invention;

[0025] Figure 3 is a schematic structural diagram of a sheet metal mounting bracket of the present invention. Specific Embodiments

[0026] The following will describe the embodiments of the present invention in detail with reference to the drawings. It should be clear that the described embodiments are only a part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0027] As Figures 1-3 shown, in some illustrative embodiments, a hot air return baffle is provided, and its main function is to prevent the high-temperature airflow in the engine compartment from returning to the front end of the cooling module 6, resulting in a smaller temperature difference and affecting the cooling effect. Among them, the hot air return baffle is composed of three baffle assemblies 1 located above and on the left and right sides of the cooling module 6. The baffle assembly 1 includes: hexagon nuts 11, sheet metal pressing plates 12, polyurethane foam boards 13, hexagon bolts 14, and sheet metal mounting brackets 15.

[0028] Both the sheet metal pressing plate 12 and the sheet metal mounting bracket 15 are made of metal sheet metal. The main function of the sheet metal pressing plate 12 is to press the polyurethane foam board 13 to ensure its shape and position during use, and at the same time provide certain support and protection. The sheet metal mounting bracket 15 is used to fix the entire baffle assembly 1 on the vehicle and provide a stable support structure. The polyurethane foam board 13 is the main part of the baffle assembly 1, and it is made of polyurethane foam material. The polyurethane foam material has the characteristics of light weight, high elasticity, and good heat insulation performance. Since the polyurethane foam board 13 is easily compressible and deformable, the baffle assembly 1 can adapt to different shapes and sizes during installation or use, while maintaining good sealing performance.

[0029] A number of sleeves 121 are provided on the sheet metal pressing plate 12. The sleeves 121 and the sheet metal pressing plate 12 are of an integrally formed structure. The sleeves 121 are used to cooperate with specific positions of the polyurethane foam board 13 and the sheet metal mounting bracket 15 to achieve the assembly of the baffle assembly 1. The polyurethane foam board 13 is provided with through holes 131 at positions corresponding to the sleeves 121. The size and position of the through holes 131 match those of the sleeves 121 to ensure that the sleeves 121 can be smoothly inserted. The through holes 131 can be formed by pre-drilling or by hot pressing. The sheet metal mounting bracket 15 is provided with through holes 151 at positions corresponding to the sleeves 121 for the hexagon bolts 14 to pass through. The hexagon bolts 14 are key components for connecting various components. The hexagon bolts 14 pass through the through holes 151, the through holes 131 and the sleeves 121 and are tightly connected to the hexagon nuts 11. The tight connection enables the entire baffle system to withstand a certain force and ensures the firmness of the connection.

[0030] The sleeves 121 cooperate with the through holes 131 on the polyurethane foam board 13 and the through holes 151 on the sheet metal mounting bracket 15 to provide a limiting structure for the hexagon bolts 14. When the bolts 14 pass through the through holes 151, the through holes 131 and the sleeves 121, the sleeves 121 can limit the rotation range of the bolts 14, thereby preventing the torque of the bolts 14 from being too large. Due to the material properties of the polyurethane foam board 13, it has certain elasticity and compressibility. Without proper limitation, the bolts 14 may generate too large a torque during the tightening process, which may cause damage to the polyurethane foam board 13, such as excessive compression or deformation. The presence of the sleeves 121 limits the torque of the bolts 14, thereby protecting the baffle body from damage. Moreover, through the limitation of the sleeves 121, the structure of the entire baffle assembly 1 becomes more stable, not only ensuring the integrity of the polyurethane foam board 13, but also improving the durability and reliability of the entire hot air reflux baffle.

[0031] The sheet metal mounting bracket 15 includes: a bracket body 152, and a mounting plate member 153 perpendicular to the bracket body 152 extends from one side of the bracket body 152 facing the cooling module. The mounting plate member 153 provides an additional fixing point to facilitate the installation of the baffle assembly 1. Mounting holes 154 are provided on the mounting plate member 153, so that the baffle assembly 1 can be fixed to the vehicle body or other structures through the other side hole positions on the sheet metal mounting bracket 15, that is, the mounting holes 154. By extending the mounting plate member 153 on one side of the bracket body 152, the fixing of the baffle assembly 1 becomes more direct and simple. This design reduces the installation steps and improves the installation efficiency.

[0032] The thickness of the polyurethane foam board 13 is 5 mm - 10 mm to ensure that the foam board can provide sufficient heat insulation performance and maintain sufficient elasticity to adapt to different installation environments. The height of the sleeve 121 is less than the thickness of the polyurethane foam board 13, so that the sleeve 121 will not pass through the polyurethane foam board 13 to reach the other side. One is to ensure the connection tightness of the baffle assembly 1, and the other is to provide a margin for the deformation of the polyurethane foam board 13.

[0033] The number of the sleeves 121 is three. Therefore, the number of the through holes 131 and the through holes 151 is three, which ensures that the three key positions of the baffle assembly 1 can be fixed, and each sleeve 121 corresponds to a through hole 131 and a through hole 151. The design of the three sleeves 121 makes the structure of the baffle assembly 1 more balanced, and each sleeve 121 can bear the force evenly, thereby improving the stability of the whole system.

[0034] As Figures 1-2 shown, in some illustrative embodiments, a front windshield system of a heavy truck body is provided, including: a hot air return baffle, a cab heat insulation board 4, a fender 5, and a cooling module 6. The hot air return baffle is composed of three baffle assemblies 1 located above and on the left and right sides of the cooling module 6.

[0035] The cab heat insulation board 4 is arranged above the engine. Its main function is to isolate the heat generated by the engine and prevent this heat from being transmitted into the cab, so as to maintain a comfortable temperature in the cab. By isolating the heat generated by the engine, the cab heat insulation board 4 can reduce the temperature fluctuation in the cab, thereby improving the driving comfort.

[0036] The fenders 5 are arranged on both sides of the engine and are usually made of wear-resistant and high-temperature-resistant materials. The fenders 5 play a protective role, can keep the appearance of the vehicle clean, extend the service life of the vehicle, improve the driving comfort and driving safety, and reduce the maintenance cost.

[0037] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present utility model should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.

Claims

1. A hot air reflux baffle, characterized in that: It consists of three baffle assemblies located above and on the left and right sides of the cooling module; The baffle assembly includes: a polyurethane foam plate, a sheet metal pressing plate and a sheet metal mounting bracket; A plurality of sleeves are arranged on the sheet metal pressing plate, through holes are formed on the polyurethane foam plate at positions corresponding to the sleeves, the sleeves are embedded in the through holes, through holes are formed on the sheet metal mounting bracket at positions corresponding to the sleeves, and hexagonal bolts penetrate through the through holes, the through holes and the sleeves and are fastened with hexagonal nuts.

2. A hot air return baffle according to claim 1, characterized in that: The sheet metal mounting bracket comprises a bracket body, and a mounting plate extending perpendicular to the bracket body from a side of the bracket body facing the cooling module, and a mounting hole is provided on the mounting plate.

3. A hot air return baffle according to claim 2, characterized in that: The thickness of the polyurethane foam board is 5mm-10mm.

4. A hot air return baffle according to claim 3, characterized in that: The height of the sleeve is smaller than the thickness of the polyurethane foam board.

5. The hot air return baffle according to claim 4, characterized in that: The number of the sleeves is three.

6. A front windshield system for a heavy truck, characterized in that: include: A cooling module and a hot air return baffle as described in any one of claims 1 to 5, wherein the hot air return baffle is composed of three baffle assemblies located above and on the left and right sides of the cooling module.

7. A heavy truck front end windshield system according to claim 6, characterized in that: Also includes: A cab heat insulation board is arranged above the engine.

8. A heavy truck front end windshield system according to claim 7, characterized in that: Also includes: Fenders are arranged on both sides of the engine.

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