A segmented, deployable roof curtain device

Abstract

This utility model relates to the field of automotive safety technology, and more particularly to a segmented roof curtain airbag device. This utility model provides a segmented roof curtain airbag device that can deploy independently in segments, achieving precise deployment of corresponding airbag segments based on the collision area, thus improving protection efficiency. A segmented roof curtain airbag device includes an airbag generator, air supply pipes, and control valves. Control valves are connected to both sides of the airbag generator, and another control valve is connected to the front center of the airbag generator. Air supply pipes are connected to each control valve. When a vehicle is involved in a collision, this utility model activates the airbag generator and opens the corresponding control valves according to the collision location, intensity, and vehicle speed, causing the upper, middle, or lower airbag to inflate, prioritizing protection of the occupant's head, body, or legs. This achieves the effect of precisely deploying the corresponding airbag segment based on the collision area, thus improving protection efficiency.

Description

Technical Field

[0001] This utility model relates to the field of automotive safety technology, and in particular to a roof curtain device that can be deployed in sections. Background Technology

[0002] Side curtain airbags are an important passive safety device in modern cars. They are usually installed on the edge of the roof and deploy downwards during a collision to cover the front, middle and rear window areas, preventing occupants' heads from colliding with hard objects such as glass and B / C pillars during side impacts or rollovers.

[0003] Existing side curtain airbags are typically a single, integrated structure, consisting of a long airbag extending from the A-pillar to the C-pillar or D-pillar, driven by one or more gas generators. This structure has the following problems: 1. The deployment is inflexible, and the protection is "one-size-fits-all". Regardless of whether the collision occurs in the front or rear row, the entire curtain airbag will deploy, causing the non-collision area to deploy incorrectly, wasting materials and gas.

[0004] 2. High cost: The long air bag requires a large amount of material and the gas generator requires high power, which increases manufacturing costs.

[0005] Therefore, a segmented roof curtain airbag device has now been developed that can deploy independently in segments, accurately deploying the corresponding airbag segments according to the collision area, thereby improving protection efficiency. Utility Model Content

[0006] To overcome the shortcomings of existing side curtain airbags, which are usually one-piece structures, have inflexible deployment, provide "one-size-fits-all" protection, are costly, require a large amount of material for long airbags, and have high power requirements for gas generators, thus increasing manufacturing costs, this utility model provides a segmented roof curtain airbag device that can be deployed independently in sections, accurately deploying the corresponding airbag sections according to the collision area, thereby improving protection efficiency.

[0007] The technical solution of this utility model is: A segmented deployable roof curtain device includes a curtain generator, air supply pipes, control valves, an upper curtain, hooks, a middle curtain, a lower curtain, and a buffer assembly. Control valves are connected to both sides of the curtain generator, and another control valve is connected to the front center of the curtain generator. Air supply pipes are connected to each control valve. Hooks are mounted on both sides of the curtain generator, with the upper curtain connected between the hooks. The middle curtain is connected below the upper curtain, and the lower curtain is connected below the middle curtain. The air supply pipe on the left side is detachably connected to the middle curtain, the air supply pipe on the right side is detachably connected to the upper curtain, and the air supply pipe on the front side is detachably connected to the lower curtain. Buffer assemblies are provided on the upper, middle, and lower curtains to provide cushioning protection for occupants.

[0008] Furthermore, the air curtain generator, control valve, and processor are electrically connected via a control module.

[0009] Furthermore, it also includes Velcro straps, with Velcro straps connecting the upper sides of both the left and right sides of the upper air curtain.

[0010] Furthermore, the buffer assembly includes a sliding sleeve, an exhaust pipe, and an elastic element. The upper air curtain, the middle air curtain, and the lower left side of the lower air curtain are all connected to the sliding sleeve. The exhaust pipe is slidably connected to the sliding sleeve, and the exhaust pipe is connected to the sliding sleeve by an elastic element.

[0011] Furthermore, the elastic element is a telescopic spring.

[0012] Furthermore, it also includes sealing rings, with sealing rings connected to the left side of each sliding sleeve, and the exhaust pipes contacting and engaging with adjacent sealing rings.

[0013] The beneficial effects are: 1. When a car is involved in a collision, this utility model activates the curtain air generator and opens the corresponding control valve according to the collision location, intensity, and vehicle speed, causing the upper, middle, or lower curtain air to expand, giving priority to protecting the head, body, or legs of the occupants. This achieves the effect of accurately deploying the corresponding curtain air section according to the collision area, thereby improving protection efficiency.

[0014] 2. When the upper, middle, or lower air curtain is subjected to strong compressive force, the compressed internal gas pushes the exhaust pipe outward to disengage from the sealing ring, causing the sliding sleeve to open and a portion of the gas inside the air curtain to be discharged. This achieves the effect of buffering and protecting the occupants and reducing the risk of injury to the occupants. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the air curtain generator and air delivery pipe of this utility model.

[0017] Figure 3 This is a three-dimensional structural diagram of the air curtain and hanging ring of this utility model.

[0018] Figure 4 This is a three-dimensional structural diagram of the sliding sleeve and exhaust pipe of this utility model.

[0019] In the attached diagram, the following are the labels: 1-Air curtain generator, 2-Air supply pipe, 3-Control valve, 4-Upper air curtain, 5-Hook, 6-Hook and loop fastener, 7-Middle air curtain, 8-Lower air curtain, 9-Sliding sleeve, 10-Exhaust pipe, 11-Telescopic spring, 12-Sealing ring. Detailed Implementation

[0020] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0021] A segmented, deployable roof curtain device, such as Figures 1-4 As shown, the device includes an air curtain generator 1, an air supply pipe 2, a control valve 3, an upper air curtain 4, hooks 5, Velcro 6, a middle air curtain 7, a lower air curtain 8, and a buffer assembly. Control valves 3 are connected to both sides of the air curtain generator 1, and also to the front of the middle section of the air curtain generator 1. The air curtain generator 1, control valves 3, and processor are electrically connected via a control module. Air supply pipes 2 are connected to each control valve 3. Hooks 5 are hung on both sides of the air curtain generator 1, and the upper air curtain 4 is connected between the lower sides of the hooks 5. Velcro 6 is connected to the upper sides of both sides of the upper air curtain 4. The middle air curtain 7 is connected to the lower side of the upper air curtain 4, and the lower air curtain 8 is connected to the lower side of the middle air curtain 7. The left air supply pipe 2 is detachably connected to the middle air curtain 7, the right air supply pipe 2 is detachably connected to the upper air curtain 4, and the front air supply pipe 2 is detachably connected to the lower air curtain 8. Buffer assemblies are provided on the upper air curtain 4, middle air curtain 7, and lower air curtain 8.

[0022] like Figure 1 , Figure 3 and Figure 4 As shown, the buffer assembly includes a sliding sleeve 9, an exhaust pipe 10, an elastic element, and a sealing ring 12. The upper air curtain 4, the middle air curtain 7, and the lower air curtain 8 are all connected to the lower left side of the sliding sleeve 9. The exhaust pipe 10 is slidably connected to the sliding sleeve 9. The exhaust pipe 10 is connected to the sliding sleeve 9 by an elastic element, which is a telescopic spring 11. The left side of the sliding sleeve 9 is connected to a sealing ring 12. The exhaust pipe 10 is in contact with the adjacent sealing ring 12.

[0023] When using this utility model, first install the air curtain generator 1 on the edge of the roof, hang the upper air curtain 4, middle air curtain 7 and lower air curtain 8 on the air curtain generator 1 through the hook 5, then connect the air supply pipe 2 to the upper air curtain 4, middle air curtain 7 and lower air curtain 8 respectively, then fold the upper air curtain 4, middle air curtain 7 and lower air curtain 8 into a strip, and fix the upper air curtain 4, middle air curtain 7 and lower air curtain 8 with Velcro 6; With the development of intelligent vehicles, vehicles have the ability to predict collision locations (such as radar and cameras). When a car is involved in a collision, the processor activates the curtain air generator 1 through the control module and opens the corresponding control valve 3 according to the collision location, intensity, and vehicle speed, causing the upper curtain air 4, middle curtain air 7, or lower curtain air 8 to inflate, prioritizing the protection of the occupants' heads, bodies, or legs. When the upper curtain air 4, middle curtain air 7, or lower curtain air 8 inflates, they can break free of the Velcro 6 and unfold from top to bottom, thereby enabling the precise deployment of the corresponding curtain air segment according to the collision area and improving protection efficiency. When the upper air curtain 4, middle air curtain 7, or lower air curtain 8 expands, the force of the telescopic spring 11 keeps the exhaust pipe 10 in contact with the sealing ring 12, maintaining the sealing state of the sliding sleeve 9. When the upper air curtain 4, middle air curtain 7, or lower air curtain 8 is subjected to strong compressive force, the compressed internal gas pushes the exhaust pipe 10 to move outward and disengage from the sealing ring 12, causing the sliding sleeve 9 to open and a portion of the gas inside the air curtain to be discharged, thereby providing buffer protection for the occupants and reducing the risk of injury to the occupants.

[0024] 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 scope of the claims.

Claims

1. A segmentally deployable roof curtain device, characterized by: The system includes an air curtain generator (1), an air supply pipe (2), a control valve (3), an upper air curtain (4), a hook (5), a middle air curtain (7), a lower air curtain (8), and a buffer assembly. The air curtain generator (1) is connected to control valves (3) on both the left and right sides, and also to the front of the middle section of the air curtain generator (1). Each control valve (3) is connected to an air supply pipe (2). Hooks (5) are hung on both the left and right sides of the air curtain generator (1). The hooks (5) are positioned between the lower sides of the hooks (5). The upper air curtain (4) is connected to the upper air curtain (4), the middle air curtain (7) is connected to the lower side of the upper air curtain (4), the lower air curtain (8) is connected to the lower side of the middle air curtain (7), the air supply pipe (2) on the left side is detachably connected to the middle air curtain (7), the air supply pipe (2) on the right side is detachably connected to the upper air curtain (4), and the air supply pipe (2) on the front side is detachably connected to the lower air curtain (8). The upper air curtain (4), the middle air curtain (7), and the lower air curtain (8) are all equipped with buffer components that can provide buffer protection for the occupants.

2. A segmentally deployable roof curtain airbag arrangement as claimed in claim 1, characterized in that The air curtain generator (1), control valve (3) and processor are electrically connected through a control module.

3. A segmentally deployable roof curtain airbag arrangement as defined in claim 1, characterized in that It also includes Velcro (6), and the upper sides of the left and right sides of the upper air curtain (4) are connected with Velcro (6).

4. A segmentally deployable roof curtain airbag arrangement as defined in claim 1, characterized in that The buffer assembly includes a sliding sleeve (9), an exhaust pipe (10), and an elastic element. The upper air curtain (4), the middle air curtain (7), and the lower air curtain (8) are all connected to the lower left side of the sliding sleeve (9). The exhaust pipe (10) is slidably connected to the sliding sleeve (9). The exhaust pipe (10) is connected to the sliding sleeve (9) with an elastic element.

5. A segmentally deployable roof curtain arrangement as claimed in claim 4, characterized in that: The elastic element is a telescopic spring (11).

6. A segmentally deployable roof curtain airbag arrangement as defined in claim 4, characterized in that: It also includes a sealing ring (12), and the left side of the sliding sleeve (9) is connected to a sealing ring (12), and the exhaust pipe (10) is in contact with the adjacent sealing ring (12).

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