A car door trim with a ventilation function

By incorporating inclined air intake ducts, U-shaped connecting pipes, and water collection channels into the door trim panels, combined with air guide ducts and filters, the waterproofing issue of the ventilation function in rainy weather has been resolved, achieving stable operation of the ventilation structure and improved passenger comfort.

CN224676024UActive Publication Date: 2026-08-25SHANGHAI MOBIN TECH CO LTD
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Patent Information

Application Number
CN202522056848.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-24
Publication Date
2026-08-25
Estimated Expiration
2035-09-24

AI Technical Summary

Technical Problem

The ventilation function of existing door panels is easily penetrated by rainwater in rainy weather, leading to dampness and mold growth on the interior panels and damage to electronic components, thus providing limited protection.

Method used

The design incorporates an inclined air intake duct, a U-shaped connecting pipe, and a water collection trough. Combined with the air guide duct and filter, it forms an effective rainwater blocking and drainage system. The air guide duct is positioned towards the front of the vehicle, and the multiple air outlets are strategically arranged to ensure that air flows into the vehicle.

Benefits of technology

It effectively prevents rainwater from entering the ventilation structure, extends the life of the device, ensures stable operation of the ventilation function, and improves passenger comfort and ease of use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of vehicle door trim with ventilation function, it is related to the technical field of automotive interior components, including interior trim panel body, interior trim panel body is equipped with ventilation cavity, ventilation cavity is connected with outside by ventilation pipeline, the side of interior trim panel body towards occupant is provided with air outlet, air outlet is communicated with ventilation cavity, ventilation pipeline includes air deflector pipe, air deflector pipe is set towards vehicle front;The utility model can effectively block and discharge the rainwater entering ventilation pipeline by the air inlet pipe, U-shaped connecting pipe and water collecting tank of inclination arrangement, then the screen filter impurity of air deflector pipe end portion, avoid the damage and blockage of rainwater and impurity to ventilation structure, ensure the stable operation of ventilation function, prolong the service life of device.
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Description

Technical Field

[0001] This utility model relates to the field of automotive interior component technology, specifically a door trim panel with ventilation function. Background Technology

[0002] In automotive interior systems, door panels are a core component connecting function and aesthetics. As consumers increasingly demand greater comfort within the vehicle, door panels with active ventilation have become a mainstream design trend. These panels, by incorporating internal ventilation channels, guide outside air or air from the vehicle's air conditioning to areas that come into contact with the occupants' shoulders and arms, effectively improving the local microclimate and alleviating the stuffiness of long journeys. This is especially true in summer when air conditioning is not used or in spring and autumn when natural ventilation is available; the ventilation function significantly enhances the passenger experience.

[0003] However, existing door trim panels with ventilation functions still have some drawbacks in actual use: To achieve ventilation, existing trim panels need to be connected to the outside through pipes, but most products only use a single straight-tube air intake structure and are not specifically designed for rain protection: When the vehicle is driving in the rain or passing through flooded roads, rainwater can easily enter the air intake pipe with the airflow. Since the pipe has no guiding or drainage structure, rainwater will flow directly into the ventilation cavity or the interior trim panel itself, causing the sound insulation cotton and adhesive layer inside the interior trim panel to become damp and moldy. This not only produces odors but also accelerates the aging of the trim panel substrate. In severe cases, it may even penetrate into the interior of the door, affecting the normal operation of the door's electronic control components. Although some products have added simple rain shields at the air intake, they cannot cope with slanted rainwater or water flow during high-pressure car washing. Rainwater can still enter the pipe through gaps, and the protective effect is very limited.

[0004] To address this issue, we designed a door trim panel with ventilation functionality. Utility Model Content

[0005] The purpose of this utility model is to provide a door trim panel with ventilation function to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides a car door trim panel with ventilation function, including an interior panel body, a ventilation cavity provided in the interior panel body, the ventilation cavity being connected to the outside through a ventilation duct, an air outlet opening on the side of the interior panel body facing the occupant, the air outlet communicating with the ventilation cavity, and the ventilation duct including an air guide pipe, the air guide pipe being arranged facing the front of the vehicle.

[0007] Furthermore, the ventilation duct also includes a first air inlet pipe and a second air inlet pipe, which are connected together. Both the first air inlet pipe and the second air inlet pipe are inclinedly opened in the interior panel body, and the end near the ventilation cavity is set as the higher end. The ventilation cavity is connected to the air guide pipe through the first air inlet pipe and the second air inlet pipe.

[0008] Furthermore, a connecting pipe is provided between the first air inlet pipe and the second air inlet pipe. The connecting pipe has a U-shaped cross-section and a water collection trough is provided at the bottom end of the connecting pipe. The bottom end of the water collection trough is connected to the existing drain hole of the vehicle door.

[0009] Furthermore, a filter screen is provided at the end of the air duct away from the ventilation cavity.

[0010] Furthermore, a cover plate is hinged to one side wall of the interior panel body near the ventilation cavity. The outer side wall of the cover plate has a grip groove for easy opening. A sealing gasket is provided at the closure point between the grip groove and the interior panel body.

[0011] Furthermore, the interior panel body has a groove inside, and the cover plate is connected to the interior panel body and seals the groove to form the ventilation cavity.

[0012] Furthermore, elastic buckles are fixedly connected to the four corners of the side wall facing the door of the interior panel body.

[0013] Furthermore, there are multiple air vents, and the array of multiple air vents is arranged on the interior panel body, with the number of air vents decreasing from the middle to the ends of the interior panel body.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. In this utility model, the inclined air inlet pipe, U-shaped connecting pipe and water collection tank can effectively block and discharge rainwater entering the ventilation pipe. Combined with the filter screen at the end of the air guide pipe to filter impurities, it avoids damage and blockage of the ventilation structure by rainwater and impurities, ensures the stable operation of the ventilation function and extends the service life of the device.

[0016] 2. In this utility model, the air duct is set towards the front of the vehicle, and with the air intake design of the first air intake pipe and the second air intake pipe, when the vehicle is moving, the oncoming airflow enters the air duct, and the air flows into the vehicle through the pressure difference, forming natural ventilation. At the same time, the air outlet is reasonably arranged according to the needs of the passengers, ensuring the uniformity of air outlet, significantly improving the ventilation effect in the vehicle and the comfort of the passengers.

[0017] 3. In this utility model, the hinged cover facilitates the inspection and maintenance of the ventilation cavity, while the elastic buckle enables the stable and convenient installation and removal of the interior panel body and the door. The overall structural design takes into account both functionality and practicality, reduces later maintenance costs, and improves ease of use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the interior panel body of this utility model;

[0019] Figure 2 This is a schematic diagram of the back structure of the interior panel body of this utility model;

[0020] Figure 3 This is a schematic diagram of the back structure of the interior panel body of this utility model;

[0021] Figure 4 This is a schematic diagram of the connection structure between the ventilation duct and the ventilation cavity of this utility model.

[0022] In the diagram: 1. Interior panel body; 2. Ventilation cavity; 3. Ventilation duct; 4. Air outlet; 5. Air guide duct; 6. First air inlet duct; 7. Second air inlet duct; 8. Connecting pipe; 9. Water collection trough; 10. Filter screen; 11. Groove; 12. Cover plate; 13. Grip groove; 14. Elastic buckle. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-4 This utility model provides a technical solution: a car door trim panel with ventilation function, including an interior panel body 1. Each of the four corners of the side wall of the interior panel body 1 facing the car door is fixedly connected with an elastic buckle 14. During installation, the interior panel body 1 is snapped to the car door by the elastic buckle 14 to achieve stable installation. During disassembly, only a certain external force is applied to deform the elastic buckle 14 to remove it, which is convenient to operate.

[0025] The interior panel body 1 has a groove 11 inside. The cover plate 12 is hinged to the interior panel body 1 and seals the groove 11 to form a ventilation cavity 2. When maintenance is required inside the ventilation cavity 2, the operator can open the cover plate 12 through the grip groove 13 on the outer wall of the cover plate 12. The operation is convenient. The sealing gasket set at the closing point of the grip groove 13 and the interior panel body 1 can ensure the sealing of the cover plate 12 when it is closed and prevent air leakage.

[0026] See Figure 3 and Figure 4 The ventilation cavity 2 is connected to the outside through the ventilation duct 3. The ventilation duct 3 includes an air guide duct 5, a first air inlet duct 6, and a second air inlet duct 7. The air guide duct 5 is set facing the front of the vehicle, and a filter screen 10 is set at its end away from the ventilation cavity 2. When the vehicle is in motion, the outside air enters the air guide duct 5, and after being filtered by the filter screen 10 to remove dust, debris and other impurities, it enters the interconnected first air inlet duct 6 and second air inlet duct 7.

[0027] The first air intake pipe 6 and the second air intake pipe 7 are both inclinedly opened inside the interior panel body 1, and the end near the ventilation cavity 2 is the higher end. When the air flows in the air intake pipe, the rainwater carried by it flows to the lower end under the action of gravity, enters the U-shaped connecting pipe 8 between the first air intake pipe 6 and the second air intake pipe 7, and collects in the water collection tank 9 at the bottom of the connecting pipe 8. The bottom end of the water collection tank 9 is connected to the existing drainage hole of the car door, and the rainwater is finally discharged through the drainage hole to avoid entering the ventilation cavity 2.

[0028] See Figure 3 and Figure 4 After filtration and dehydration, the air enters the ventilation chamber 2 through the first air inlet pipe 6 and the second air inlet pipe 7. The interior panel body 1 has multiple arrayed air outlets 4 on the side facing the occupants. The air outlets 4 are connected to the ventilation chamber 2, and the number of air outlets 4 decreases from the middle to the end of the interior panel body 1. The air in the ventilation chamber 2 is evenly discharged through the air outlets 4, providing targeted ventilation services for the occupants and improving the comfort of the ride.

[0029] See Figure 2 The elastic buckles 14 at the four corners of the interior panel body 1 facing the side wall of the door can fit tightly against the door after installation, ensuring the stability of the interior panel body 1 installation, avoiding loosening, abnormal noise and other issues during vehicle operation, and ensuring the stable operation of the overall function of the device.

[0030] Working principle:

[0031] When using the ventilated door trim panel, it is first securely connected to the door via the elastic clips 14 at the four corners of the trim panel body 1. When the vehicle is in motion, outside air flows forward under the action of airflow and enters the air duct 5 facing forward. The filter 10 at the end of the air duct 5 filters the air, removing dust, debris, and other impurities. The filtered air enters the interconnected first air intake duct 6 and second air intake duct 7. Since the first air intake duct 6 and second air intake duct 7 are inclined and the end near the ventilation cavity 2 is higher, rainwater carried in the air flows to the U-shaped connecting pipe 8 under the action of gravity and collects in the water collection tank 9, and is finally discharged through the connected door drain hole.

[0032] The clean air, after being dehydrated and filtered, continues to flow, entering the ventilation chamber 2 formed by the groove 11 and the cover plate 12 through the first air inlet pipe 6 and the second air inlet pipe 7. The air in the ventilation chamber 2 is discharged through the air outlet 4 on the occupant side of the interior panel body 1. The layout of the air outlet 4, with its gradually decreasing number from the middle to the ends, provides more uniform ventilation tailored to the occupants' needs. When maintenance is required, the operator can open the hinged cover plate 12 by holding the groove 13 to inspect and clean the ventilation chamber 2 and the ventilation pipes 3. After maintenance, the cover plate 12 is closed, and the sealing gasket ensures a tight seal, guaranteeing the continuous and stable operation of the device.

[0033] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A door trim panel with ventilation function, comprising an interior trim panel body (1), characterized in that, The interior panel body (1) is provided with a ventilation cavity (2), which is connected to the outside through a ventilation pipe (3). The interior panel body (1) has an air outlet (4) on the side facing the occupants, which is connected to the ventilation cavity (2). The ventilation pipe (3) includes a guide pipe (5) which is positioned facing the front of the vehicle.

2. A door trim panel with ventilation function as described in claim 1, characterized in that, The ventilation duct (3) also includes a first air inlet pipe (6) and a second air inlet pipe (7). The first air inlet pipe (6) and the second air inlet pipe (7) are connected. The first air inlet pipe (6) and the second air inlet pipe (7) are both inclinedly opened in the interior panel body (1), and the end near the ventilation cavity (2) is set as the higher end. The ventilation cavity (2) is connected to the air guide pipe (5) through the first air inlet pipe (6) and the second air inlet pipe (7).

3. A door trim panel with ventilation function as described in claim 2, characterized in that, A connecting pipe (8) is provided between the first air inlet pipe (6) and the second air inlet pipe (7). The cross-section of the connecting pipe (8) is U-shaped. A water collection trough (9) is provided at the bottom end of the connecting pipe (8). The bottom end of the water collection trough (9) is connected to the existing drainage hole of the car door.

4. A door trim panel with ventilation function as described in claim 3, characterized in that, A filter screen (10) is provided at the end of the air duct (5) away from the ventilation cavity (2).

5. A door trim panel with ventilation function as described in claim 4, characterized in that, A cover plate (12) is hinged to one side wall of the interior panel body (1) near the ventilation cavity (2). A grip groove (13) is provided on the outer side wall of the cover plate (12) to facilitate opening the cover plate (12). A sealing gasket is provided at the closing point between the grip groove (13) and the interior panel body (1).

6. A door trim panel with ventilation function as described in claim 5, characterized in that, The interior panel body (1) has a groove (11) inside. The cover plate (12) is connected to the interior panel body (1) and seals the groove (11) to form the ventilation cavity (2).

7. A door trim panel with ventilation function as described in claim 6, characterized in that, The interior panel body (1) is fixedly connected to four corners of the side wall facing the door with elastic buckles (14).

8. A door trim panel with ventilation function as described in claim 7, characterized in that, The number of air outlets (4) is multiple, and the array of multiple air outlets (4) is arranged on the interior panel body (1). The number of air outlets (4) decreases from the middle to the end of the interior panel body (1).