A roof air curtain device that prevents aging under high temperature environments

CN224631695UActive Publication Date: 2026-08-14JIANGXI CHIYUAN AUTOMOBILE SAFETY SYSTEM CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-27
Publication Date
2026-08-14

AI Technical Summary

Technical Problem

[0002]车顶气帘作为汽车被动安全系统的重要组成部分,在汽车发生碰撞事故时,能够迅速展开,为车内乘员的头部提供有效的缓冲与保护,降低乘员受伤的风险,然而,车顶气帘通常安装在汽车车顶内部,长期处于高温环境中——在夏季高温天气下,汽车经过暴晒后,车顶内部温度可达到60-80℃,甚至更高,此外,在一些高温工况地区,汽车长期行驶过程中,车顶内部也会维持较高温度,且车顶气帘的主体材料多为普通聚酰胺纤维,其表面虽涂覆有简单的防护涂层,但在长期高温环境下,材料容易发生老化现象,具体表现为纤维强度下降、涂层开裂脱落、气帘密封性降低等

Benefits of technology

[0012]有益效果:本实用新型通过在下雨天时通过雨水会通过引流槽进入进水管内,再通过连接套和连接管流入蓄水袋进行存储,之后当天气为高温天气时,蓄水袋能够吸收气帘的热量,从而将气帘的温度维持在相对低的温度,达到了能够对车顶气帘进行有效降温,避免车顶气帘老化,提高其使用寿命和使用安全性的效果。

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Abstract

This utility model relates to the field of automotive safety accessories technology, and more particularly to a roof air curtain device that prevents aging under high-temperature environments. This utility model provides a roof air curtain device that can effectively cool down the roof air curtain, prevent aging, and improve its service life and safety under high-temperature environments. The device includes a water storage bag and the air curtain itself, with water storage bags connected to both the front and rear sides of the air curtain. During rainy weather, rainwater flows through a drainage channel into an inlet pipe, then through a connecting sleeve and connecting pipe into the water storage bag for storage. When the weather is hot, the water storage bag absorbs heat from the air curtain, thus maintaining its temperature at a relatively low level. This effectively cools the roof air curtain, prevents aging, and improves its service life and safety.
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Description

Technical Field

[0001] This utility model relates to the field of automotive safety accessories technology, and in particular to a roof curtain device that prevents aging under high temperature environments. Background Technology

[0002] As a crucial component of a vehicle's passive safety system, roof airbags deploy rapidly in the event of a collision, providing effective cushioning and protection for the heads of occupants and reducing the risk of injury. However, roof airbags are typically installed inside the vehicle's roof, constantly exposed to high temperatures. In summer, after a car has been exposed to direct sunlight, the internal temperature of the roof can reach 60-80°C or even higher. Furthermore, in some high-temperature regions, the interior of the roof can remain at a high temperature even during prolonged driving. The main material of roof airbags is often ordinary polyamide fiber, which, despite a simple protective coating, is prone to aging under prolonged high temperatures. This manifests as decreased fiber strength, coating cracking and peeling, and reduced airbag sealing. Aging airbags not only shorten their lifespan but, more seriously, may fail to deploy properly in a collision, or, if deployed, may rupture under impact pressure, losing their protective function and posing a significant threat to the lives of occupants.

[0003] Therefore, a roof air curtain device that can effectively cool down the roof air curtain, prevent it from aging, and improve its service life and safety under high temperature conditions has been developed. Utility Model Content

[0004] In order to overcome the shortcomings of the background technology, which is to be refined into a few points that are concise and precise, the technical problem to be solved is to provide a roof air curtain device that can effectively cool down the roof air curtain, prevent the roof air curtain from aging, and improve its service life and safety in use, and has anti-aging properties in high-temperature environments.

[0005] Technical solution

[0006] A roof air curtain device for preventing aging under high temperature conditions includes a water storage bag, a mounting plate, a drain pipe, a valve, a gas generator, a bracket, a gas supply pipe, an air curtain, and a water storage component. Water storage bags are connected to both the front and rear sides of the air curtain. A mounting plate is connected to the side of each water storage bag that is far apart from the other. A drain pipe is connected to the lower side of each water storage bag. A valve is installed on each drain pipe. A bracket is connected to the left side of the air curtain. A gas generator is installed on the bracket. A gas supply pipe is connected between the gas generator and the air curtain. A water storage component is provided on the water storage bag to store water and cool it down.

[0007] Furthermore, it also includes hooks, with two hooks on each side of the mounting plate that are far apart from each other.

[0008] Furthermore, it also includes sealing rings, with sealing rings installed between the drain pipes and adjacent water storage bags.

[0009] Furthermore, the water storage component includes connecting pipes, connecting sleeves, water inlet pipes, and drainage channels. Connecting pipes are connected to the upper sides of both the left and right sides of the water storage bag. Connecting sleeves are connected between the connecting pipes on the left side and between the connecting pipes on the right side. Water inlet pipes are connected between the connecting sleeves, and multiple drainage channels are connected to the water inlet pipes.

[0010] Furthermore, the diversion channel has a bucket-shaped structure.

[0011] Furthermore, it also includes liquid level indicators, with two liquid level indicators on the left and right sides of the water inlet pipe, both of which are electrically connected to the valve.

[0012] Beneficial effects: This utility model allows rainwater to enter the inlet pipe through the drainage channel during rainy days, and then flow into the water storage bag through the connecting sleeve and connecting pipe for storage. Later, when the weather is hot, the water storage bag can absorb the heat of the air curtain, thereby maintaining the temperature of the air curtain at a relatively low temperature. This achieves the effect of effectively cooling the roof air curtain, preventing aging of the roof air curtain, and improving its service life and safety. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is a three-dimensional structural diagram of the hook and connecting frame components of this utility model.

[0015] Figure 3 This is a three-dimensional structural diagram of the guide rod and push rod components of this utility model.

[0016] Figure 4 This is a three-dimensional structural diagram of the components such as the spring and push rod of this utility model.

[0017] Reference numerals: 1-Water storage bag, 2-Mounting plate, 3-Hook, 4-Sealing ring, 5-Drain pipe, 6-Valve, 7-Gas generator, 8-Bracket, 9-Gas supply pipe, 10-Air curtain, 11-Connecting pipe, 12-Connecting sleeve, 13-Water inlet pipe, 14-Drainage channel, 15-Liquid level observer. Detailed Implementation

[0018] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0019] A roof curtain air device that prevents aging under high-temperature environments, such as Figures 1-4As shown, the device includes a water storage bag 1, a mounting plate 2, a hook 3, a sealing ring 4, a drain pipe 5, a valve 6, a gas generator 7, a bracket 8, a gas supply pipe 9, an air curtain 10, and a water storage assembly. Water storage bags 1 are connected to both the front and rear sides of the air curtain 10. Mounting plates 2 are connected to the sides of the water storage bags 1 that are far apart from each other. Two hooks 3 are connected to the sides of the mounting plates 2 that are far apart from each other. Sealing rings 4 are provided between each drain pipe 5 and the adjacent water storage bag 1. A drain pipe 5 is connected to the lower side of each water storage bag 1, and a valve 6 is provided on each drain pipe 5. A bracket 8 is connected to the left side of the air curtain 10. A gas generator 7 is installed on the bracket 8. A gas supply pipe 9 is connected between the gas generator 7 and the air curtain 10. A water storage assembly is provided on the water storage bag 1.

[0020] like Figure 2 and Figure 4 As shown, the water storage assembly includes a connecting pipe 11, a connecting sleeve 12, a water inlet pipe 13, a diversion channel 14, and a liquid level observer 15. The upper sides of the left and right sides of the water storage bag 1 are connected to the connecting pipe 11. The connecting sleeve 12 is connected between the connecting pipes 11 on the left side, and the connecting sleeve 12 is also connected between the connecting pipes 11 on the right side. The water inlet pipe 13 is connected between the connecting sleeves 12. Multiple diversion channels 14 are connected to the water inlet pipe 13. The diversion channels 14 have a funnel-shaped structure. The water inlet pipe 13 is equipped with two liquid level observers 15 on the left and right sides. The liquid level observers 15 are electrically connected to the valve 6.

[0021] When using this utility model, the water storage bag 1 and the air curtain 10 can first be installed on the roof of the vehicle body through the hook 3. The water inlet pipe 13 is aligned with the water inlet hole reserved on the roof. Then, when a collision occurs, the gas generator 7 will quickly supply air to the air curtain 10 through the air supply pipe 9, causing the air curtain 10 to expand and deploy quickly to protect the passengers inside the vehicle. When it is rainy, rainwater will enter the water inlet pipe 13 through the reserved hole and the drainage channel 14, and then flow into the water storage bag 1 through the connecting sleeve 12 and the connecting pipe 11 for storage. When it is hot, the water storage bag 1 can absorb the heat of the air curtain 10, thereby maintaining the temperature of the air curtain 10 at a relatively low temperature and preventing the air curtain 10 from aging due to high temperature. This effectively cools down the roof air curtain 10, prevents the roof air curtain 10 from aging, and improves its service life and safety. During use, the liquid level observer 15 can monitor the liquid level of the water storage bag 1. When the rainfall is large and the liquid level exceeds the standard, the valve 6 on the drain pipe 5 can be opened through the liquid level observer 15 to drain the excess water from the drain pipe 5 and maintain the liquid level in the water storage bag 1 at the specified amount. The sealing ring 4 can prevent water leakage.

[0022] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A roof air curtain device that prevents aging under high-temperature environments, characterized in that, It includes a water storage bag (1), a mounting plate (2), a drain pipe (5), a valve (6), a gas generator (7), a bracket (8), a gas supply pipe (9), an air curtain (10), and a water storage component. The air curtain (10) is connected to the front and rear sides of the water storage bag (1). The mounting plate (2) is connected to the side of the water storage bag (1) that is far apart from each other. The drain pipe (5) is connected to the lower side of the water storage bag (1). The drain pipe (5) is equipped with a valve (6). The bracket (8) is connected to the left side of the air curtain (10). The gas generator (7) is installed on the bracket (8). The gas supply pipe (9) is connected between the gas generator (7) and the air curtain (10). The water storage bag (1) is equipped with a water storage component that can store water and cool it down.

2. The roof curtain device according to claim 1, wherein It also includes hooks (3), and two hooks (3) are connected to the left and right sides of the mounting plate (2) on opposite sides.

3. The roof curtain device according to claim 1, wherein It also includes a sealing ring (4), and the drain pipe (5) is provided with a sealing ring (4) between it and the adjacent water storage bag (1).

4. The roof curtain device according to claim 1, wherein The water storage assembly includes a connecting pipe (11), a connecting sleeve (12), an inlet pipe (13), and a drainage channel (14). The upper sides of the left and right sides of the water storage bag (1) are connected to the connecting pipe (11). The connecting sleeve (12) is connected between the connecting pipes (11) on the left side, and the connecting sleeve (12) is also connected between the connecting pipes (11) on the right side. The inlet pipe (13) is connected between the connecting sleeves (12), and multiple drainage channels (14) are connected to the inlet pipe (13).

5. The roll-up roof window device according to claim 4, wherein the roll-up roof window device is configured to prevent the degradation of the sealing member in a high-temperature environment. The diversion channel (14) has a bucket-shaped structure.

6. A roof air curtain device for preventing aging under high temperature conditions according to claim 4, characterized in that, It also includes a liquid level observer (15), and two liquid level observers (15) are provided on the left and right sides of the water inlet pipe (13). The liquid level observers (15) are electrically connected to the valve (6).