Epoxy panel for vehicle roof air duct

Abstract

The utility model relates to vehicle roof air duct technical field proposes a kind of epoxy board for vehicle roof air duct, including connection female board and connection daughter board, the connection female board and the connection daughter board are interconnected, the connection female board and the connection daughter board are all by air duct board, honeycomb aluminium interlayer and epoxy aluminium plate sequentially from inside to outside composition, the honeycomb aluminium interlayer is used for the strength promotion of air duct board, the epoxy aluminium plate is used for the corrosion prevention of air duct board, through the setting of epoxy aluminium plate, honeycomb aluminium interlayer etc. Structure, epoxy aluminium plate is as outer layer protective structure, and durable anticorrosion barrier is formed by its unique epoxy resin coating;The internal honeycomb aluminium interlayer is effectively dispersed stress by hexagonal honeycomb structure, and the overall compression strength is enhanced, double protection ensures that air duct is long-term stable operation in humid vibration environment, through above-mentioned technical scheme, the service life in prior art and the problem of inconvenient installation are solved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle roof ventilation technology, specifically to an epoxy board for vehicle roof ventilation. Background Technology

[0002] Epoxy panels for vehicle roof ventilation ducts are composite functional panels specifically designed for roof ventilation duct (roof ventilation duct) systems in railway passenger cars, subways, and other vehicles. It is not simply an epoxy resin panel, but a modular component integrating multiple functions such as ventilation, structural support, lightweighting, corrosion resistance, and sealing.

[0003] In existing technologies.

[0004] In the field of rail vehicle manufacturing, the roof ventilation duct system is a key component for maintaining air circulation and comfort within the vehicle. Currently, the industry commonly uses stainless steel or ordinary aluminum alloy plates as the main material for the ventilation ducts. While these traditional materials possess a certain structural strength, they have revealed numerous technical bottlenecks during long-term use: First, traditional metal ventilation ducts are heavy, contradicting the trend towards lightweight rail vehicles and increasing overall vehicle energy consumption. Second, the complex operating environment of vehicles means the duct interior is constantly exposed to humid air, and condensation easily forms on the exterior, leading to electrochemical corrosion of the metal sheets. This not only shortens the service life but can also contaminate the supplied air with corrosion products. Third, existing duct installations often use bolted connections or simple plug-in joints, resulting in poor sealing and vibration resistance. Continuous vibrations during vehicle operation can cause these connections to loosen, leading to air leaks and noise.

[0005] Furthermore, traditional air duct panels are mostly made of a single material and have a limited function. Increasing strength often requires thicker panels, further increasing weight; while surface treatments for corrosion protection increase manufacturing costs and process complexity. In terms of installation efficiency, existing connection methods typically require multiple people working together and using specialized tools, resulting in long construction cycles and failing to meet the efficiency requirements of modern mass production. Utility Model Content

[0006] This utility model proposes an epoxy board for vehicle roof ventilation ducts, which solves the problems of insufficient service life and inconvenient installation in related technologies.

[0007] The technical solution of this utility model is as follows: an epoxy board for vehicle roof air duct, comprising a connecting mother plate and a connecting daughter plate, wherein the connecting mother plate and the connecting daughter plate are connected to each other, and both the connecting mother plate and the connecting daughter plate are composed of an air duct plate, a honeycomb aluminum interlayer and an epoxy aluminum plate in sequence from the inside to the outside, wherein the honeycomb aluminum interlayer is used to improve the strength of the air duct plate and the epoxy aluminum plate is used for the corrosion protection of the air duct plate; The connecting mother plate and the connecting daughter plate are connected by a connecting structure, which is used to assist in the connection between the connecting mother plate and the connecting daughter plate.

[0008] In a preferred embodiment of this utility model, the connection structure is formed by interlocking a connecting sub-connector and a connecting female connector, wherein the connecting sub-connector is connected to the connecting sub-plate and the connecting female connector is connected to the connecting female plate.

[0009] As a preferred embodiment of this utility model, one end of the connecting sub-connector is provided with a sub-fastening block, one side of the connecting sub-connector is provided with four symmetrically arranged limiting plates, one side of the connecting sub-connector is provided with four symmetrically arranged sub-fastening fixing blocks, and one end of the sub-fastening fixing block is fixedly connected with a sub-fastening fixing head.

[0010] As a preferred embodiment of this utility model, one side of the connecting female connector is provided with a connecting main block and two symmetrically arranged connecting side blocks. Both sides of the connecting side blocks are provided with limit grooves. The interior of the connecting main block is provided with a fixed inner groove, and one side of the fixed inner groove is provided with two symmetrically arranged overlapping grooves.

[0011] In a preferred embodiment of this utility model, the sub-fastening block is sleeved on the outer peripheral surface of the connecting side block and the connecting main block, the limiting insert is inserted into the inside of the limiting slide groove, the sub-fastening fixing block is slidably assembled inside the fixing inner groove, and the sub-fastening fixing head overlaps on the overlapping groove.

[0012] As a preferred embodiment of this utility model, both the limiting insert plate and the sub-fastening block are provided with sealing gaskets for sealing.

[0013] The working principle and beneficial effects of this utility model are as follows: 1. This utility model uses an epoxy aluminum plate and a honeycomb aluminum interlayer structure. The epoxy aluminum plate serves as the outer protective structure, forming a durable anti-corrosion barrier through its unique epoxy resin coating. The internal honeycomb aluminum interlayer effectively disperses stress through its hexagonal honeycomb structure, enhancing the overall compressive strength. This dual protection ensures the long-term stable operation of the air duct in a humid and vibrating environment.

[0014] 2. This utility model, through the setting of connecting sub-connectors, connecting female connectors and other structures, the limiting insert plate of the connecting sub-connector and the limiting slide groove of the connecting female connector form a precise guide, and the mechanical interlocking design of the sub-buckle fixing head and the overlapping groove allows the plates to be automatically locked when plugged in, without the need for additional tools, which greatly improves the on-site installation efficiency and ensures the reliability of the connection. Attached Figure Description

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0016] Fig. 1 This is a schematic diagram of the overall structure of this utility model; Fig. 2 This is an installation diagram of the connection structure of this utility model; Fig. 3 This is a cross-sectional view of the air duct plate of this utility model; Fig. 4 This is a schematic diagram of the plug-in connection structure of this utility model; Fig. 5 This is a schematic diagram of the overall structure of the female connector of this utility model; Fig. 6 This is a schematic diagram of the overall structure of the connector of this utility model.

[0017] In the diagram: 1. Connecting mother plate; 101. Air duct plate; 102. Honeycomb aluminum sandwich layer; 103. Epoxy aluminum plate; 2. Connect the sub-board; 3. Connection structure; 31. Connecting sub-connector; 311. Sub-fastener block; 312. Limiting plate; 313. Sub-fastener fixing block; 314. Sub-fastener fixing head; 32. Connecting female connector; 321. Connecting side block; 322. Connecting main block; 323. Limiting slide groove; 324. Fixing inner groove; 325. Overlap groove. Detailed Implementation

[0018] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. 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.

[0019] Example 1 like Figs. 1-6 As shown in this embodiment, an epoxy board for a vehicle roof air duct includes a connecting mother plate 1 and a connecting daughter plate 2, which are connected to each other. Both the connecting mother plate 1 and the connecting daughter plate 2 are composed of an air duct plate 101, a honeycomb aluminum interlayer 102, and an epoxy aluminum plate 103 from the inside to the outside. The honeycomb aluminum interlayer 102 is used to improve the strength of the air duct plate 101, and the epoxy aluminum plate 103 is used for the corrosion protection of the air duct plate 101. The connecting mother plate 1 and the connecting daughter plate 2 are connected by the connecting structure 3, which is used to assist in the connection between the connecting mother plate 1 and the connecting daughter plate 2.

[0020] Specifically, the connecting mother plate 1 and the connecting daughter plate 2 adopt the same composite material laminate structure, which is composed of three layers of materials from the inside out: air duct plate 101, honeycomb aluminum sandwich layer 102, and epoxy aluminum plate 103. As the inner surface layer that directly contacts the airflow, the air duct plate 101 needs to have good surface smoothness and aerodynamic characteristics. The honeycomb aluminum sandwich layer 102 serves as the middle support layer, and its unique hexagonal honeycomb structure can effectively disperse stress and significantly improve the bending strength and compressive strength of the overall structure. The epoxy aluminum plate 103 serves as the outermost layer, and through a special epoxy resin coating treatment, the corrosion resistance and surface hardness of the plate are improved. The connecting mother plate 1 and the connecting daughter plate 2 are reliably connected by a specially designed connecting structure 3. The connecting structure 3 can adapt to the vibration environment during vehicle operation and ensure the airtightness of the air duct system. In the actual assembly process, the connecting structure 3 tightly connects the connecting mother plate 1 and the connecting daughter plate 2 together through a specific mechanical fit to form a complete air duct, which not only ensures the structural strength of the air duct system but also provides good corrosion resistance.

[0021] In this embodiment, the connection structure 3 is formed by the mutual insertion of the connecting sub-connector 31 and the connecting female connector 32. The connecting sub-connector 31 is connected to the connecting sub-plate 2, and the connecting female connector 32 is connected to the connecting female plate 1.

[0022] Specifically, in this embodiment, the connecting sub-connector 31 is fixedly installed on the edge of the connecting sub-plate 2, and the connecting female connector 32 is correspondingly installed on the edge of the connecting female plate 1. When plate connection is required, the operator accurately inserts the connecting sub-connector 31 into the connecting female connector 32. The connecting sub-connector 31 is designed with a convex structure, and its cross-sectional shape is carefully designed to smoothly enter the concave structure of the connecting female connector 32. The internal space of the connecting female connector 32 and the external contour of the connecting sub-connector 31 form a precise fit relationship, ensuring that there will be no loosening after the two are inserted. During the insertion process, the front end of the connecting sub-connector 31 is designed with a guide slope to ensure smooth assembly. The materials of the connecting sub-connector 31 and the connecting female connector 32 fully consider wear resistance and dimensional stability, and are made of high-strength engineering plastics, which not only ensures the reliability of the connection, but also avoids the electrochemical corrosion problems that may be caused by metal materials, simplifies the on-site installation process, and improves construction efficiency.

[0023] In this embodiment, a sub-clamping block 311 is provided at one end of the connecting sub-connector 31, four symmetrically arranged limiting plates 312 are provided on one side of the connecting sub-connector 31, four symmetrically arranged sub-clamping fixing blocks 313 are provided on one side of the connecting sub-connector 31, and a sub-clamping fixing head 314 is fixedly connected to one end of the sub-clamping fixing block 313.

[0024] Specifically, the sub-clamping block 311 serves as the main structure connecting the sub-connector 31. Its shape is a regular geometric shape, providing an installation base for other components. At one end of the sub-clamping block 311, four symmetrically distributed limiting plates 312 are provided. These limiting plates 312 are arranged at equal 90-degree intervals to form a stable positioning. Each limiting plate 312 has a specific thickness and width to ensure that it can accurately enter the corresponding groove during the insertion process. Four sub-fastener fixing blocks 313 are evenly distributed around the sub-fastener connector 311. Each sub-fastener fixing block 313 has a sub-fastener fixing head 314 at its end. The sub-fastener fixing head 314 adopts a wedge-shaped design, and its inclined angle is precisely calculated to provide appropriate guidance during the insertion process. When the connecting sub-connector 31 is inserted into the connecting female connector 32, the limiting plate 312 first enters the corresponding slide groove, which plays a preliminary positioning and guiding role. Then, the sub-fastener fixing block 313 gradually enters the working position as the insertion depth increases. Finally, the sub-fastener fixing head 314 forms a firm connection with the corresponding overlapping groove 325, ensuring the reliability of the connection.

[0025] In this embodiment, a connecting main block 322 and two symmetrically arranged connecting side blocks 321 are provided on one side of the connecting female connector 32. Limiting grooves 323 are provided on both sides of the connecting side blocks 321. A fixing inner groove 324 is provided inside the connecting main block 322. Two symmetrically arranged overlapping grooves 325 are provided on one side of the fixing inner groove 324.

[0026] Specifically, the main connecting block 322 is located at the center of the female connecting connector 32, and has a fixed inner groove 324 machined inside. The size of the fixed inner groove 324 matches the moving trajectory of the female fastener 313. On both sides of the main connecting block 322, two connecting side blocks 321 are symmetrically arranged. The connecting side blocks 321 and the main connecting block 322 form a stable structure through integral machining or reliable connection. Each connecting side block 321 has limit grooves 323 machined on both sides. The width and depth of these limit grooves 323 match the size of the limit plate 312, providing accurate sliding for the limit plate 312. The moving track and the internal space of the fixed inner groove 324 are specially designed to accommodate the smooth sliding of the sub-fastener fixing block 313 inside. On one side of the fixed inner groove 324, two symmetrically arranged overlapping grooves 325 are machined. The shape of the overlapping grooves 325 matches the outline of the sub-fastener fixing head 314. When the sub-fastener fixing head 314 is fully inserted into the overlapping groove 325, a mechanical interlock is formed. The overall layout of the connecting main block 322 and the connecting side block 321 has been optimized to ensure the strength of the structure and provide sufficient movement space for other components, ensuring the smoothness of the connection process and the stability after connection.

[0027] In this embodiment, the sub-buckle block 311 is sleeved on the outer peripheral surface of the connecting side block 321 and the connecting main block 322, the limiting insert plate 312 is inserted into the inside of the limiting slide groove 323, the sub-buckle fixing block 313 is slidably assembled in the inside of the fixing inner groove 324, and the sub-buckle fixing head 314 overlaps on the overlapping groove 325.

[0028] Specifically, in this embodiment, when the connecting sub-connector 31 approaches the connecting female connector 32, the sub-clamping block 311 first sleeves onto the outer peripheral surfaces of the connecting side block 321 and the connecting main block 322. As the insertion action continues, the limiting insert plate 312 begins to enter the limiting slide groove 323. The precise fit between the limiting insert plate 312 and the limiting slide groove 323 ensures that the connecting sub-connector 31 moves along a predetermined trajectory, preventing any deviation in any direction. At the same time, the sub-clamping fixing block 313 gradually slides into the fixing groove as the insertion depth increases. Inside the slot 324, guided by the fixed inner slot 324, the sub-buckle fixing block 313 maintains a stable movement posture. When inserted into place, the sub-buckle fixing head 314 is accurately embedded into the overlapping slot 325 under the action of the elastic element, forming a firm mechanical connection. During the entire insertion process, each component plays its role in sequence according to the design order. First, the sub-buckle block 311 achieves initial positioning, then the limiting insert plate 312 provides precise guidance, and finally the sub-buckle fixing head 314 completes the locking and fixing, ensuring the reliability and consistency of the assembly.

[0029] In this embodiment, both the limiting insert plate 312 and the sub-fastening block 311 are provided with sealing pads for sealing.

[0030] Specifically, in this embodiment, sealing pads are provided in key areas. The sealing pads are made of elastic silicone material, which has good compression deformation and resilience. On the surface of the limiting insert plate 312, the sealing pads are continuously pasted in strip form, and their width is slightly larger than the thickness of the limiting insert plate 312. This ensures that the gap between the limiting insert plate 312 and the limiting groove 323 can be fully filled during the insertion process. Similarly, sheet-like sealing pads are also provided on the contact surface of the sub-clamping block 311. These sealing pads are distributed in key areas where leakage may occur. When the connecting sub-connector 31 is fully inserted into the connecting female connector 32, the sealing pads undergo elastic deformation under pressure, effectively filling all possible micro gaps and forming multiple sealing barriers. The material selection of the sealing pads takes into account the characteristics of the vehicle operating environment and has excellent properties such as aging resistance, high and low temperature resistance, and moisture resistance. It not only prevents air leakage but also effectively isolates the transmission of vibration and noise, improving the overall performance of the air duct system. The installation method of the sealing pads ensures that they will not fall off or shift during long-term use, ensuring the durability of the sealing effect.

[0031] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An epoxy board for a vehicle roof duct, comprising a connecting mother plate (1) and a connecting daughter plate (2), wherein the connecting mother plate (1) and the connecting daughter plate (2) are interconnected, characterized in that, The connecting mother plate (1) and the connecting daughter plate (2) are both composed of a duct plate (101), a honeycomb aluminum interlayer (102) and an epoxy aluminum plate (103) from the inside to the outside. The honeycomb aluminum interlayer (102) is used to improve the strength of the duct plate (101), and the epoxy aluminum plate (103) is used for the corrosion protection of the duct plate (101). The connecting mother plate (1) and the connecting daughter plate (2) are connected by a connecting structure (3), which is used to assist in the connection between the connecting mother plate (1) and the connecting daughter plate (2).

2. The epoxy board for vehicle roof ventilation ducts according to claim 1, characterized in that, The connection structure (3) is formed by connecting sub-connector (31) and connecting female connector (32) plugging into each other. The connecting sub-connector (31) is connected to the connecting sub-plate (2), and the connecting female connector (32) is connected to the connecting female plate (1).

3. The epoxy board for vehicle roof ventilation ducts according to claim 2, characterized in that, One end of the connecting sub-connector (31) is provided with a sub-fastener block (311), and four symmetrically arranged limiting plates (312) are provided on one side of the connecting sub-connector (31). Four symmetrically arranged sub-fastener fixing blocks (313) are provided on one side of the connecting sub-connector (31), and a sub-fastener fixing head (314) is fixedly connected to one end of the sub-fastener fixing block (313).

4. The epoxy board for vehicle roof ventilation ducts according to claim 3, characterized in that, The connecting female connector (32) has a connecting main block (322) and two symmetrically arranged connecting side blocks (321) on one side. The connecting side blocks (321) have limit grooves (323) on both sides. The connecting main block (322) has a fixed inner groove (324) inside. The fixed inner groove (324) has two symmetrically arranged overlapping grooves (325) on one side.

5. An epoxy board for a vehicle roof duct according to claim 4, characterized in that, The sub-fastener block (311) is sleeved on the outer peripheral surface of the connecting side block (321) and the connecting main block (322), the limiting insert plate (312) is inserted into the inside of the limiting slide groove (323), the sub-fastener fixing block (313) is slidably assembled inside the fixing inner groove (324), and the sub-fastener fixing head (314) overlaps on the overlapping groove (325).

6. An epoxy board for a vehicle roof duct according to claim 5, characterized in that, Both the limiting insert (312) and the sub-fastening block (311) are provided with sealing pads for sealing.

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