Shock-resistant automobile A column inner plate assembly

By using a combined structure of carbon fiber reinforced composite supporting plate, high-strength low-alloy steel inner plate body and foam plastic filling cavity in the automotive A-pillar inner plate, combined with the design of the energy-absorbing plate, the existing A-pillar inner plate structure bearing is solved. The problem of insufficient strength has achieved better impact resistance and occupant protection.

CN222179645UInactive Publication Date: 2024-12-17LIUZHOU FANGYI MASCH & EQUIP CO LTD
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Patent Information

Application Number
CN202421004383.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-10
Publication Date
2024-12-17
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The structure of the A-pillar inner plate of the existing automobile A-pillar is light and thin, and the bearing capacity is insufficient, which leads to easy deformity when the vehicle crashes and cannot effectively protect the personnel in the cockpit.

Method used

Design an impact-resistant automotive A-pillar inner plate assembly, adopting a combined structure of the inner plate main body, the first support plate, the second support plate and the energy-absorbing plate. The support plate uses carbon fiber reinforced composite material, and the inner plate main body uses high strength Low alloy steel, the filling cavity is filled with foam plastic, and the energy-absorbing plate is equipped with fixed plates to absorb collision energy.

Benefits of technology

The strength and stress impact resistance of the A-pillar inner plate are improved, and energy can be effectively absorbed and dispersed during collisions, reducing impact on the occupants, and enhancing protection of the cockpit.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a shock-resistant automobile A pillar inner plate assembly, which relates to the technical field of automobile upright posts, and comprises an inner plate main body, a first support plate, a second support plate and an energy absorption plate, the first support plate, the second support plate and the energy absorption plate are all fixedly arranged in the inner plate main body, the energy absorption plate is arranged between the first supporting plate and the second supporting plate, filling cavities are formed in the left end and the right end of the inner plate body, step grooves are formed in the outer sides of the filling cavities at the same time, the interiors of the filling cavities are used for being filled with foamed plastic, and the interiors of the step grooves are used for containing sealing gaskets. According to the A column inner plate, the two supporting plates are matched with the inner plate body, so that the overall strength is high, the stress impact resistance effect is good, and when an accident occurs, the A column inner plate can well protect personnel in a cockpit; and meanwhile, the energy absorption plate and the foamed plastic are arranged, so that more energy can be absorbed during collision, and the impact on passengers during collision is reduced.
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Description

Technical Field

[0001] The utility model relates to the technical field of automobile pillars, in particular to an impact-resistant automobile A-pillar inner plate assembly. Background Art

[0002] The A-pillar of a car is a connecting pillar connecting the roof and the front cabin on the left and right front of the car. It is designed to disperse energy when the car body collides head-on. When the vehicle rolls over or overturns, the A-pillar can effectively prevent the cockpit from being squeezed and deformed, protecting the occupants in the cockpit. Existing A-pillars of cars are generally composed of an A-pillar reinforcement plate, an A-pillar inner plate, and a side panel outer plate covering the A-pillar reinforcement plate.

[0003] At present, most of the inner panels of A-pillars are sheet metal parts with relatively light and thin structures and relatively small bearing force. Vehicle accidents often occur in the front part of the vehicle. For example, in a common vehicle rear-end collision, the front part of the rear vehicle collides with the rear part of the front vehicle, which often causes large deformation or serious injuries to the rear vehicle. The protective structure of the front part of the rear vehicle is not strong enough, and the front part is easily deformed by impact. Based on this, the present invention provides an impact-resistant automobile A-pillar inner panel assembly to solve the above-mentioned problems. Utility Model Content

[0004] In order to solve the above technical problems, an impact-resistant automobile A-pillar inner panel assembly is provided. This technical solution solves the problem mentioned in the above background technology that the current A-pillar inner panels are mostly sheet metal parts, the structure is relatively light and thin, the bearing force is relatively small, and the protective structure is not strong enough, which makes the front of the car easily deformed after impact.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A shock-resistant automobile A-pillar inner panel assembly comprises an inner panel body, a first support plate, a second support plate and an energy absorbing plate, wherein the first support plate, the second support plate and the energy absorbing plate are all fixedly installed inside the inner panel body, wherein the energy absorbing plate is arranged between the first support plate and the second support plate, the first support plate is arranged on the upper side of the second support plate, filling cavities are provided at both left and right ends of the inner panel body, a step groove is provided at the outer side of the filling cavity, the interior of the filling cavity is used to fill foam plastic, and the interior of the step groove is used to place a sealing gasket, the energy absorbing plate comprises a fixed frame, the outer side wall of the fixed frame is fixedly connected to the inner wall of the inner panel body, a plurality of groups of first fixed plates, second fixed plates and third fixed plates are arranged inside the fixed frame, the first fixed plate and the second fixed plate are symmetrically arranged, the first fixed plate and the third fixed plate are arranged in parallel, the first fixed plate and the second fixed plate are fixedly connected by a first connecting rod, and the second fixed plate and the third fixed plate are fixedly connected by a second connecting rod.

[0007] Preferably, the inner plate body is arranged in an arc shape toward one side, and the material of the inner plate body is high-strength low-alloy steel.

[0008] Preferably, the outer side wall of the inner plate body is fixedly connected with a positioning block, and the positioning blocks are provided in pair and are symmetrically arranged.

[0009] Preferably, the inner side wall of the inner plate body is provided with a mounting groove, and the mounting groove is provided in pair and is symmetrically arranged.

[0010] Preferably, the first fixing plate, the second fixing plate and the third fixing plate are all arranged in a wave shape.

[0011] Preferably, the first support plate and the second support plate are made of carbon fiber reinforced composite material.

[0012] Compared with the prior art, the utility model provides an impact-resistant automobile A-pillar inner panel assembly, which has the following beneficial effects:

[0013] 1. In the utility model, the A-pillar inner panel assembly is installed between the windshield and the movable glass window on the front side of the vehicle. The first support plate and the second support plate are installed inside the inner panel body. The two support plates are made of carbon fiber reinforced composite materials. Carbon fiber has extremely high strength and rigidity. By combining carbon fiber with a resin matrix, a carbon fiber reinforced composite material is formed. The composite material has excellent strength and rigidity, and the overall weight is light. At the same time, the internal body is made of high-strength low-alloy steel, so that the overall strength is high and the stress impact resistance effect is good. When an accident occurs, the A-pillar inner panel can well protect the personnel in the cockpit.

[0014] 2. In the utility model, filling cavities are provided on both sides of the inner plate body, and the interior of the filling cavity is filled with foam plastic. The foam plastic filling has good compression performance and energy absorption capacity, and can buffer the impact force and effectively absorb the collision energy when a collision occurs, thereby reducing the impact on the occupants during the collision. At the same time, an energy-absorbing plate is provided, and a plurality of fixed plates are provided inside the energy-absorbing plate. The fixed plates are arranged in a wave shape, and the deformability of the fixed plates is increased so that the fixed plates can absorb more energy during a collision. When impacted, the energy is absorbed through plastic deformation, and the collision energy is effectively dispersed to the surrounding structure, thereby reducing the impact on the vehicle occupants. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the internal structure of the energy absorbing plate in the utility model.

[0017] The numbers in the figure are:

[0018] 1. Inner plate body; 101. Filling cavity; 102. Step groove; 103. Mounting groove; 2. First support plate; 3. Second support plate; 4. Energy absorption plate; 401. Fixed frame; 402. First fixed plate; 403. Second fixed plate; 404. Third fixed plate; 405. First connecting rod; 406. Second connecting rod; 5. Positioning block; 6. Foam plastic; 7. Sealing pad. DETAILED DESCRIPTION

[0019] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0020] Reference Figure 1-2 As shown, an impact-resistant automobile A-pillar inner panel assembly comprises an inner panel body 1, a first support plate 2, a second support plate 3 and an energy absorbing plate 4, wherein the first support plate 2, the second support plate 3 and the energy absorbing plate 4 are all fixedly mounted inside the inner panel body 1, wherein the energy absorbing plate 4 is arranged between the first support plate 2 and the second support plate 3, the first support plate 2 is arranged on the upper side of the second support plate 3, and filling cavities 101 are provided at both left and right ends of the inner panel body 1, and a step groove 102 is provided at the outer side of the filling cavity 101, the interior of the filling cavity 101 is used to fill foam plastic 6, and the interior of the step groove 102 is used to place a sealing pad 7, the device cooperates with the inner panel body 1 through two support plates, so that the overall strength is high and the stress impact resistance effect is good, when an accident occurs, the A-pillar inner panel can well protect the personnel in the cockpit; at the same time, the energy absorbing plate 4 and the foam plastic 6 are provided, which can absorb more energy during a collision, and when impacted, the impact on the occupants during the collision is reduced by absorbing the collision energy.

[0021] Specifically, in the present embodiment, the energy absorbing plate 4 includes a fixed frame 401, the outer wall of the fixed frame 401 is fixedly connected to the inner wall of the inner plate body 1, and a plurality of groups of first fixed plates 402, second fixed plates 403 and third fixed plates 404 are arranged inside the fixed frame 401, the first fixed plate 402 and the second fixed plate 403 are symmetrically arranged, the first fixed plate 402 and the third fixed plate 404 are arranged in parallel, the first fixed plate 402 and the second fixed plate 403 are fixedly connected by a first connecting rod 405, and the second fixed plate 403 and the third fixed plate 404 are fixedly connected by a second connecting rod 406. Filling cavities 101 are provided on both sides of the inner panel body 1, and the interior of the filling cavity 101 is filled with foam plastic 6. The foam plastic 6 has good compression performance and energy absorption capacity, and can buffer the impact force and effectively absorb the collision energy when a collision occurs, thereby reducing the impact on the occupants during the collision. At the same time, an energy-absorbing plate 4 is provided, and a plurality of fixed plates are provided inside the energy-absorbing plate 4. The fixed plates are arranged in a wavy shape, and the deformability of the fixed plates is increased so that the fixed plates can absorb more energy during a collision. When impacted, the energy is absorbed through plastic deformation, and the collision energy is effectively dispersed to the surrounding structures, thereby reducing the impact on the vehicle occupants.

[0022] Specifically, in this embodiment, the inner plate body 1 is arranged in an arc shape toward one side, and the material of the inner plate body 1 is high-strength low-alloy steel.

[0023] Specifically, in this embodiment, the outer side wall of the inner plate body 1 is fixedly connected with a positioning block 5 , and a pair of positioning blocks 5 are provided and symmetrically arranged.

[0024] Specifically, in this embodiment, the inner side wall of the inner plate body 1 is provided with a mounting groove 103 , and a pair of mounting grooves 103 are provided and symmetrically arranged.

[0025] Specifically, in this embodiment, the first fixing plate 402 , the second fixing plate 403 , and the third fixing plate 404 are all arranged in a wave shape.

[0026] Specifically, in this embodiment, the first support plate 2 and the second support plate 3 are made of carbon fiber reinforced composite material. The A-pillar inner panel assembly is installed between the windshield and the movable glass window on the front side of the vehicle. The first support plate 2 and the second support plate 3 are installed inside the inner panel body 1. The two support plates are made of carbon fiber reinforced composite material. Carbon fiber has extremely high strength and rigidity. By combining carbon fiber with a resin matrix, a carbon fiber reinforced composite material is formed. It has excellent strength and rigidity, and the overall weight is relatively light. At the same time, the internal body is made of high-strength low-alloy steel, so that the overall strength is high and the stress impact resistance effect is good. When an accident occurs, the A-pillar inner panel can well protect the personnel in the cockpit.

[0027] The working principle of the utility model is: the A-pillar inner panel assembly is installed between the windshield and the movable glass window on the front side of the vehicle, and the first support plate 2 and the second support plate 3 are installed inside the inner panel body 1. The two support plates are made of carbon fiber reinforced composite materials. The carbon fiber has extremely high strength and rigidity. The carbon fiber is combined with a resin matrix to form a carbon fiber reinforced composite material, which has excellent strength and rigidity and is light in overall weight. At the same time, the inner body is made of high-strength low-alloy steel, so that the overall strength is high and the stress impact resistance effect is good. When an accident occurs, the A-pillar inner panel can well protect the personnel in the cockpit.

[0028] At the same time, filling cavities 101 are provided on both sides of the inner panel body 1, and the interior of the filling cavity 101 is filled with foam plastic 6. The foam plastic 6 has good compression performance and energy absorption capacity, and can buffer the impact force and effectively absorb the collision energy when a collision occurs, thereby reducing the impact on the occupants during the collision. At the same time, an energy-absorbing plate 4 is provided, and a plurality of fixed plates are provided inside the energy-absorbing plate 4. The fixed plates are arranged in a wave shape, and the deformability of the fixed plates is increased so that the fixed plates can absorb more energy during a collision. When impacted, the energy is absorbed through plastic deformation, and the collision energy is effectively dispersed to the surrounding structures, thereby reducing the impact on the vehicle occupants.

[0029] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An impact-resistant automobile A-pillar inner panel assembly, characterized in that: The invention comprises an inner plate body (1), a first support plate (2), a second support plate (3) and an energy absorbing plate (4), wherein the first support plate (2), the second support plate (3) and the energy absorbing plate (4) are all fixedly mounted inside the inner plate body (1), wherein the energy absorbing plate (4) is arranged between the first support plate (2) and the second support plate (3), and the first support plate (2) is arranged on the upper side of the second support plate (3); a filling cavity (101) is provided at both left and right ends of the inner plate body (1), and a step groove (102) is provided on the outer side of the filling cavity (101); the interior of the filling cavity (101) is used to fill foam plastic (6), and the interior of the step groove (102) is used to place a sealing gasket (7); The energy absorbing plate (4) comprises a fixed frame (401), the outer wall of the fixed frame (401) is fixedly connected to the inner wall of the inner plate body (1), and a plurality of groups of first fixed plates (402), second fixed plates (403) and third fixed plates (404) are arranged inside the fixed frame (401), the first fixed plate (402) and the second fixed plate (403) are symmetrically arranged, the first fixed plate (402) and the third fixed plate (404) are arranged in parallel, the first fixed plate (402) and the second fixed plate (403) are fixedly connected by a first connecting rod (405), and the second fixed plate (403) and the third fixed plate (404) are fixedly connected by a second connecting rod (406).

2. The impact-resistant automobile A-pillar inner panel assembly according to claim 1, characterized in that: The inner plate body (1) is arranged in an arc shape toward one side, and the material of the inner plate body (1) is high-strength low-alloy steel.

3. The impact-resistant automobile A-pillar inner panel assembly according to claim 1, characterized in that: The outer side wall of the inner plate body (1) is fixedly connected with a positioning block (5), and a pair of positioning blocks (5) are provided and symmetrically arranged.

4. The impact-resistant automobile A-pillar inner panel assembly according to claim 1, characterized in that: The inner side wall of the inner plate body (1) is provided with a mounting groove (103), and a pair of the mounting grooves (103) are provided and are symmetrically arranged.

5. The impact-resistant automobile A-pillar inner panel assembly according to claim 1, characterized in that: The first fixing plate (402), the second fixing plate (403) and the third fixing plate (404) are all arranged in a wave shape.

6. The impact-resistant automobile A-pillar inner panel assembly according to claim 1, characterized in that: The first support plate (2) and the second support plate (3) are made of carbon fiber reinforced composite material.