Side impact safety structure with occupant protection function

Abstract

The application discloses a side-impact safety structure with passenger protection function, which comprises vehicle doors connected to the left and right sides of a vehicle body and a sub-instrument panel located in the middle of the vehicle body, and the space between the vehicle doors and the sub-instrument panel is the passenger position, characterized in that: the vehicle doors and the sub-instrument panel are both provided with energy-absorbing protection structures for absorbing side-impact energy and avoiding hard contact between the passenger and the vehicle doors and the sub-instrument panel; the energy-absorbing protection structure of the vehicle door comprises a handle box support fixed on the vehicle door panel and a door guard plate, a vehicle door anti-collision energy-absorbing block is fixed between the handle box support and the door guard plate, and a gap exists between the handle box support and the vehicle door anti-collision energy-absorbing block; and the energy-absorbing protection structure of the sub-instrument panel comprises energy-absorbing cover plates arranged on the left and right sides of the sub-instrument panel. The vehicle door and the sub-instrument panel directly contacted with the passenger during side impact of the vehicle are subjected to structural optimization design, so that the side-impact safety of the passenger is maximally ensured.

Description

Technical Field

[0001] This invention relates to the field of automotive safety technology, specifically to a side-impact safety structure with occupant protection function. Background Technology

[0002] Currently, during vehicle operation, improper operation by the driver or others can lead to side impacts. Side collisions are now a common type of traffic accident, and their severity often depends on the vehicle's side structure and equipment. Among these, the doors and passenger side dashboard, as the parts of the vehicle that directly contact the occupants in a side impact accident, play a crucial protective role, mitigating injuries to passengers and reducing property damage.

[0003] However, existing doors and passenger dashboards do not fully consider the complex effects of various factors, resulting in insufficient side-impact protection for occupants and even causing secondary injuries to occupants. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the aforementioned background technology and provide a side-impact safety structure that can effectively protect occupants in side-impact accidents.

[0005] To achieve this objective, the side-impact safety structure with occupant protection function designed in this invention includes doors connected to the left and right sides of the vehicle body and a sub-dashboard located in the middle of the vehicle body, with the occupant space between the doors and the sub-dashboard. The key feature is that both the doors and the sub-dashboard are equipped with energy-absorbing protection structures for absorbing side-impact energy and preventing hard contact between the occupant and the doors and the sub-dashboard. The energy-absorbing protection structure of the doors includes a handle box bracket and a door panel fixed to the door sheet metal, with a door anti-collision energy-absorbing block fixed between the handle box bracket and the door anti-collision energy-absorbing block, and a gap existing between the handle box bracket and the door anti-collision energy-absorbing block. The energy-absorbing protection structure of the sub-dashboard includes energy-absorbing covers disposed on its left and right sides.

[0006] Furthermore, the door anti-collision energy-absorbing block is fixedly connected to the bottom of the armrest frame, the door anti-collision energy-absorbing block is located at the lower part of the door, and the door anti-collision energy-absorbing block is arranged relative to the occupant's pelvic position.

[0007] Furthermore, the handle box bracket is fixed between the middle and bottom of the car door. The handle box bracket includes a flat bracket housing and a cylindrical buckle housing that is fixedly connected to the bottom side of the bracket housing and is integral with the bracket housing. The surface of the bracket housing is provided with multiple reinforcing ribs.

[0008] Furthermore, the upper part of the bracket housing is provided with a positioning structure for positioning the handle box bracket on the sheet metal; below the positioning structure is a mounting and fixing structure located on the bracket housing for fixing the handle box bracket to the sheet metal; and the cylindrical buckle housing is provided with a reinforcing fixing structure to prevent the handle box bracket from shaking on the sheet metal.

[0009] Furthermore, the positioning structure includes positioning claws disposed on the left and right sides of the upper part of the bracket housing; the mounting and fixing structure includes mounting and fixing buckles located below the positioning claws and disposed on the left and right sides of the bracket housing; the reinforcing and fixing structure includes reinforcing and fixing buckles disposed within the cylindrical buckle housing.

[0010] Furthermore, the bracket housing is provided with multiple clips, and sound-insulating pads are fixed on the multiple clips. The opening direction of each clip is different.

[0011] Furthermore, the sub-instrument panel includes a sub-instrument panel frame for strengthening the connection between the sub-instrument panel and the vehicle body and ensuring the structural stability of the sub-instrument panel after being subjected to a side impact. The frame includes a front anti-collision frame and a rear anti-collision energy-absorbing box for the sub-instrument panel, both of which are fixed to the floor of the vehicle body.

[0012] Furthermore, the sub-dashboard also includes a left-side storage energy-absorbing structure and a right-side storage energy-absorbing structure located on its left and right sides; the front part of the left-side storage energy-absorbing structure overlaps with the front anti-collision frame of the sub-dashboard, and the rear part is fixed to the rear anti-collision energy-absorbing box of the sub-dashboard; the front part of the right-side storage energy-absorbing structure overlaps with the front anti-collision frame of the sub-dashboard, and the rear part is fixed to the rear anti-collision energy-absorbing box of the sub-dashboard.

[0013] Furthermore, the energy-absorbing storage structure on the left side of the sub-dashboard includes a storage panel on the left side of the armrest box and an energy-absorbing cover plate on the left side of the armrest box fixed to the storage panel on the left side of the armrest box; the front part of the storage panel on the left side of the armrest box overlaps with the front anti-collision frame of the sub-dashboard, and the rear part is fixed to the rear anti-collision energy-absorbing box of the sub-dashboard; the storage panel on the left side of the armrest box is provided with multiple wave-shaped collapse structures along its height direction.

[0014] Furthermore, the energy-absorbing storage structure on the right side of the sub-dashboard includes a storage panel on the right side of the armrest box and an energy-absorbing cover plate on the right side of the armrest box fixed to the storage panel; the front of the storage panel overlaps with the front anti-collision frame of the sub-dashboard and the rear is fixed to the rear anti-collision energy-absorbing box of the sub-dashboard, and the storage panel on the right side of the armrest box is provided with multiple wave-shaped collapse structures along its height direction.

[0015] The beneficial effects of this invention are as follows: By optimizing the structure of the doors and sub-dashboard that come into direct contact with occupants during a side collision, the safety of occupants in a side collision is maximized. On one hand, by increasing the coverage area of ​​the door handle box bracket, the space between the bracket and the door panel can be used to arrange door impact-absorbing blocks. This structure can absorb the energy of a side collision to the maximum extent, reducing the force experienced by the human body when in contact with the door. On the other hand, the structure of the front impact-absorbing frame and rear impact-absorbing box of the sub-dashboard allows the sub-dashboard to be effectively fixed to the vehicle floor, strengthening the overall rigidity of the sub-dashboard and the vehicle body, preventing deformation and displacement of the sub-dashboard itself, and maximizing the protection of the human body from injury during a side collision. Simultaneously, the sub-dashboard also has good energy absorption properties, reducing the side impact on occupants. Attached Figure Description

[0016] Figure 1 This is a front view of the vehicle door in this invention;

[0017] Figure 2 for Figure 1 Longitudinal cross-sectional view;

[0018] Figure 3 This is a perspective view of the handle box bracket in this invention;

[0019] Figure 4 This is a front view of the handle box bracket in this invention;

[0020] Figure 5 This is a front view of the handle box bracket and sound insulation pad fixing in this invention;

[0021] Figure 6 This is a longitudinal cross-sectional view of the handle box bracket and the sound insulation pad being fixed in this invention;

[0022] Figure 7 This is a rear view of the handle box bracket in this invention;

[0023] Figure 8 This is a perspective view of the internal structure of the sub-instrument panel in this invention;

[0024] Figure 9 This is a rear view of the internal structure of the sub-instrument panel in this invention;

[0025] Figure 10 This is a left view of the internal structure of the sub-dashboard in this invention;

[0026] Figure 11 This is a left view of the rear structure of the sub-instrument panel in this invention;

[0027] Figure 12 This is an exploded view of the sub-instrument panel in this invention;

[0028] Among them, 1—door, 2—sub-instrument panel, 3—handle box bracket (3.1—bracket housing, 3.2—cylindrical buckle housing), 4—door guard plate, 5—door anti-collision energy-absorbing block, 6—positioning claw, 7—installation fixing buckle, 8—reinforced fixing buckle, 9—clamp, 10—sound insulation pad, 11—sub-instrument panel front anti-collision frame, 12—sub-instrument panel rear anti-collision energy-absorbing box, 13—left side storage panel of armrest box, 14—left side energy-absorbing cover of armrest box, 15—right side storage panel of armrest box, 16—right side energy-absorbing cover of armrest box, 17—sub-instrument panel armrest, 18—lower trim cover of armrest, 19—fixing screw, 20—handle box fixing hole, 21—armrest frame. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0030] The side-impact safety structure with occupant protection function designed in this invention includes doors 1 connected to the left and right sides of the vehicle body and a sub-dashboard 2 located in the middle of the vehicle body, with the occupant space between the doors 1 and the sub-dashboard 2. This invention ensures the occupant's side-impact safety by designing the door 1 and the sub-dashboard 2 with side-impact structural safety features.

[0031] like Figure 1As shown in Figure 7, the car door 1 includes a handle box bracket 3 and a door panel 4 fixed to the door sheet metal. A door anti-collision energy-absorbing block 5 is fixed between the handle box bracket 3 and the door panel 4. The door anti-collision energy-absorbing block 5 is located at the bottom of the armrest frame 21, and the lower part of the handle box bracket 3 extends to the corresponding position of the door anti-collision energy-absorbing block 5. There is a 3mm gap between the handle box bracket 3 and the door anti-collision energy-absorbing block 5. The door anti-collision energy-absorbing block 5 is located at the lower part of the car door 1, corresponding to the pelvic area of ​​the occupant. In the event of a side collision, it can collide with the pelvic area of ​​the occupant to absorb energy, effectively reducing the side collision impact on the occupant. The gap arrangement between the handle box bracket 3 and the door anti-collision energy-absorbing block 5 also increases the door's anti-collision energy absorption capacity. The handle box bracket 3 includes a flat bracket housing 3.1 and a cylindrical buckle housing 3.2 fixedly connected to the bottom side of the bracket housing 3.1 and integrally formed with the bracket housing 3.1. The bracket housing 3.1 has multiple reinforcing ribs, a triangular weight-reducing hole in the center, and a triangular energy-absorbing shell. This further enhances the energy absorption effect of the handle box bracket 3 while appropriately reducing its weight and ensuring its structural strength. Positioning claws 6 are located on the upper left and right sides of the bracket housing 3.1. These claws engage with the door sheet metal to position the handle box bracket 3. Below the positioning claws 6 are mounting and fixing clips 7 located on the left and right sides of the bracket housing 3.1. These clips engage with the door sheet metal to secure the handle box bracket 3. A reinforcing fixing clip 8 is located inside the cylindrical clip housing 3.2. This clip engages with the door sheet metal to prevent the handle box bracket 3 from wobbling on the door sheet metal. The bracket housing 3.1 is provided with multiple clips 9, and sound insulation pads 10 are fixed on the multiple clips 9. The opening direction of each clip 9 is different. The structural design of each clip 9 having a different opening direction can ensure the stability of the fixed structure of the sound insulation pads 10.

[0032] like Figure 8As shown in Figure 12, the sub-instrument panel 2 includes a sub-instrument panel frame, which includes a front sub-instrument panel anti-collision frame 11 and a rear sub-instrument panel anti-collision energy-absorbing box 12. Both the front sub-instrument panel frame 11 and the rear sub-instrument panel anti-collision energy-absorbing box 12 are fixed to the floor of the vehicle body. This structure greatly increases the structural strength of the sub-instrument panel 2 itself, ensuring the structural stability of the sub-instrument panel 2 in a side collision. The sub-instrument panel 2 also includes a left-side storage panel 13 of the armrest box on its left side and a left-side energy-absorbing cover 14 of the armrest box fixed to the left-side storage panel 13; and a right-side storage panel 15 of the armrest box on its right side and a right-side energy-absorbing cover 16 of the armrest box fixed to the right-side storage panel 15. The front of the left-side storage panel 13 overlaps with the front sub-instrument panel frame 11, and the rear is fixed to the rear sub-instrument panel anti-collision energy-absorbing box 12; the front of the right-side storage panel 15 overlaps with the front sub-instrument panel frame 11, and the rear is fixed to the rear sub-instrument panel anti-collision energy-absorbing box 12. Both the left-side storage panel 13 and the right-side storage panel 15 of the armrest box are equipped with multiple storage units, such as... Figure 10 The wave-shaped crumple zone structure shown can effectively absorb impact energy when the occupant is impacted towards the side of the instrument panel, ensuring the occupant's side-impact safety. Simultaneously, both the left and right energy-absorbing covers 14 and 16 of the armrest box can be filled with soft energy-absorbing materials such as foam, giving them a certain energy-absorbing effect and further increasing the energy absorption capacity of the instrument panel 2, thus protecting the occupant's side-impact safety.

[0033] In this invention, the handle box bracket 3 includes a traditional handle box fixing hole 20 for fixing the door panel handle box. Two positioning claws 6 are used for positioning and pre-installation at the upper end, and plastic mounting clips 7 are used for fixing below the positioning claws 6. The bottom of the handle box bracket 3 is fixed to the sheet metal using a waterproof reinforced plastic clip 8. This effectively avoids the risk of poor fixation and wobbling caused by the flat design of the handle box bracket 3. Furthermore, four clips 9 are added to the back of the handle box bracket 3 to prevent abnormal noise and reduce environmental pollution caused by adhesive methods, effectively reducing installation costs (traditional adhesive and welding installation methods). Moreover, the four clips 9 have different fixing directions, perfectly avoiding the risk of loosening. The handle box bracket 3 extends to the rear of the door anti-collision energy-absorbing block 5. In the event of a side collision or side impact, the force is transferred from the sheet metal to the handle box bracket 3, then from the handle box bracket 3 to the door anti-collision energy-absorbing block 5, then to the door panel 4, and finally to the vehicle occupants. Furthermore, a 3mm safety gap exists between the handle box bracket 3 and the door anti-collision energy-absorbing block, which can greatly absorb energy during a vehicle collision. The rear anti-collision energy-absorbing box 12 of the sub-dashboard is connected to the vehicle floor to increase side-impact protection. The front anti-collision frame 11 of the sub-dashboard is also connected to the vehicle floor to increase the side-impact protection of the armrest box. Fixing screws 19 are used to connect the rear anti-collision energy-absorbing box 12 of the sub-dashboard and the left storage panel 13 of the armrest box into one unit. Similarly, fixing screws 19 are used to lock the right storage panel of the armrest box to the rear anti-collision box 12 of the sub-dashboard to improve the side-impact performance of the sub-dashboard.

[0034] In summary, this invention optimizes the structure of the door 1 and the sub-dashboard 2, which are in direct contact with occupants during a side collision, thereby maximizing occupant safety. Firstly, by increasing the coverage area of ​​the door handle bracket 3, the space between the door handle bracket 3 and the door panel 4 can be used to arrange the door anti-collision energy-absorbing block 5. This structure can absorb the energy of a side collision to the maximum extent, reducing the force experienced by the human body when in contact with the door 1. Secondly, the structure of the front anti-collision frame 11 and the rear anti-collision energy-absorbing box 12 of the sub-dashboard allows the sub-dashboard 2 to be effectively fixed to the vehicle floor, strengthening the overall rigidity of the sub-dashboard 2 and the vehicle body, preventing deformation and displacement of the sub-dashboard 2 itself, and maximizing the protection against injury to the human body from the sub-dashboard 2 during a side collision. Simultaneously, the sub-dashboard 2 also has good energy absorption properties, reducing the side impact on the occupants.

[0035] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the structure of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A side impact safety structure having a passenger protection function, comprising a door (1) attached to both sides of a vehicle body and a sub-instrument panel (2) located in the middle of the vehicle body, a passenger being positioned between the door (1) and the sub-instrument panel (2), characterized in that: Both the door (1) and the sub-instrument panel (2) are equipped with energy-absorbing protective structures for absorbing side impact energy and preventing passengers from making hard contact with the door (1) and the sub-instrument panel (2). The energy-absorbing protective structure of the door (1) includes a handle box bracket (3) and a door guard plate (4) fixed to the door sheet metal. A door anti-collision energy-absorbing block (5) is fixed between the handle box bracket (3) and the door guard plate (4). There is a gap between the handle box bracket (3) and the door anti-collision energy-absorbing block (5). The energy-absorbing protective structure of the sub-instrument panel (2) includes energy-absorbing covers on its left and right sides. The sub-instrument panel (2) includes a structure for strengthening the connection between the sub-instrument panel (2) and the vehicle body and ensuring that the sub-instrument panel (2) is protected from side impact energy. The sub-instrument frame, which is structurally stable after a collision, includes a front sub-instrument frame (11) and a rear sub-instrument energy-absorbing box (12), both of which are fixed to the floor of the vehicle body. The sub-instrument (2) also includes a left-side storage energy-absorbing structure and a right-side storage energy-absorbing structure located on its left and right sides. The front part of the left-side storage energy-absorbing structure overlaps with the front sub-instrument frame (11), and the rear part is fixed to the rear sub-instrument energy-absorbing box (12). The front part of the right-side storage energy-absorbing structure overlaps with the front sub-instrument frame (11), and the rear part is fixed to the rear sub-instrument energy-absorbing box (12). ​ 2. The side-impact safety structure with occupant protection function as described in claim 1, characterized in that: The door anti-collision energy-absorbing block (5) is fixedly connected to the bottom of the armrest frame (21). The door anti-collision energy-absorbing block (5) is located at the lower part of the door (1) and is arranged relative to the pelvic position of the occupant.

3. The side-impact safety structure with occupant protection function as described in claim 1, characterized in that: The handle box bracket (3) is fixed between the middle and bottom of the car door (1). The handle box bracket (3) includes a flat bracket housing (3.1) and a columnar buckle housing (3.2) fixedly connected to the bottom side of the bracket housing (3.1) and integral with the bracket housing (3.1). The surface of the bracket housing (3.1) is provided with multiple reinforcing ribs.

4. The side-impact safety structure with occupant protection function as described in claim 3, characterized in that: The upper part of the bracket housing (3.1) is provided with a positioning structure for positioning the handle box bracket (3) on the sheet metal; the lower part of the positioning structure is provided with an installation and fixing structure located on the bracket housing (3.1) for fixing the handle box bracket (3) to the sheet metal; the cylindrical buckle housing (3.2) is provided with a reinforcing fixing structure to prevent the handle box bracket (3) from shaking on the sheet metal.

5. The side-impact safety structure with occupant protection function as described in claim 4, characterized in that: The positioning structure includes positioning claws (6) disposed on the upper left and right sides of the bracket housing (3.1); the mounting and fixing structure includes mounting and fixing buckles (7) located below the positioning claws (6) and disposed on the left and right sides of the bracket housing (3.1); the reinforcing and fixing structure includes reinforcing and fixing buckles (8) disposed in the cylindrical buckle housing (3.2).

6. The side-impact safety structure with occupant protection function as described in claim 3, 4, or 5, characterized in that: The bracket housing (3.1) is provided with a plurality of clips (9), and a sound insulation pad (10) is fixed on the plurality of clips (9). The opening direction of each clip (9) is different.

7. The side-impact safety structure with occupant protection function as described in claim 1, characterized in that: The energy-absorbing storage structure on the left side of the sub-dashboard includes a storage panel (13) on the left side of the armrest box and an energy-absorbing cover (14) on the left side of the armrest box fixed to the storage panel (13). The front of the storage panel (13) overlaps with the front anti-collision frame (11) of the sub-dashboard and the rear is fixed to the rear anti-collision energy-absorbing box (12) of the sub-dashboard. The storage panel (13) on the left side of the armrest box has multiple wave-shaped collapse structures along its height direction.

8. The side-impact safety structure with occupant protection function as described in claim 1, characterized in that: The energy-absorbing storage structure on the right side of the sub-dashboard includes a storage panel (15) on the right side of the armrest box and an energy-absorbing cover (16) on the right side of the armrest box fixed to the storage panel (15). The front of the storage panel (15) overlaps with the front anti-collision frame (11) of the sub-dashboard and the rear is fixed to the rear anti-collision energy-absorbing box (12) of the sub-dashboard. The storage panel (15) on the right side of the armrest box has multiple wave-shaped collapse structures along its height direction.

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