Self-adaptive buffering type vehicle door anti-collision plate

Abstract

A self-adaptive buffering type car door anti-collision plate relates to the technical field of car safety equipment and comprises a car door body and a connecting seat, a plurality of mounting grooves are formed in the car door body, and a plurality of telescopic rods and a silica gel air bag are mounted on the inner side of each mounting groove. The ends of the multiple telescopic rods and the end of the silica gel air bag are connected with the connecting base, a pressure sensor is installed at the position, connected with the silica gel air bag, of the connecting base, the telescopic rods are sleeved with memory alloy springs, and the memory alloy springs are arranged between the connecting base and the mounting groove. Buffering strength can be automatically adjusted according to collision strength, soft buffering is provided during slight collision, strong protection is provided during serious collision, the damage risk of the automobile door is effectively reduced, the decorative plate is detachably connected with the connecting base through the connecting mechanism, the decorative plate can be independently replaced after collision damage, automobile door parts do not need to be integrally replaced, and the maintenance cost and time are greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of automotive safety equipment technology, and in particular to an adaptive buffer type door anti-collision plate. Background Technology

[0002] During the use of a car, collisions between car doors and other objects occur frequently for various reasons. For example, when opening a car door in a narrow parking space, it is easy to collide with adjacent vehicles or obstacles. During the driving process, the vehicle may also encounter side collisions.

[0003] Traditional car door anti-collision structures typically use fixed anti-collision strips or single spring buffer devices, with a fixed buffering force that cannot be adjusted according to the intensity of the collision. Therefore, their protective effect is limited when facing collisions of varying degrees. Furthermore, most existing car door trim panels are fixed, one-piece structures; once damaged in a collision, the entire panel needs to be replaced, increasing both repair costs and repair time. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide an adaptive buffer type door anti-collision plate, which can automatically adjust the buffering force according to the collision intensity, providing gentle buffering in minor collisions and strong protection in severe collisions, effectively reducing the risk of door damage. The decorative plate is detachably connected to the connecting seat through a connecting mechanism, and can be replaced separately after collision damage, without the need to replace the entire door component, greatly reducing maintenance costs and time, and effectively solving the problems in the background art.

[0005] To achieve the aforementioned objective, this utility model adopts the following technical solution:

[0006] An adaptive buffer-type door anti-collision plate includes a door body and a connecting seat. The door body has several mounting slots, and several telescopic rods and a silicone airbag are respectively installed inside the mounting slots. The ends of the telescopic rods and the ends of the silicone airbag are connected to the connecting seat. A pressure sensor is installed at the connection point between the connecting seat and the silicone airbag. A shape memory alloy spring is sleeved on the telescopic rod and is disposed between the connecting seat and the mounting slot. A miniature air pump is installed on the side of the door body and communicates with the inside of the silicone airbag. A decorative panel is detachably connected to the connecting seat through a connecting mechanism. The decorative panel is arranged in a hexagonal honeycomb structure. The pressure sensor and the miniature air pump are electrically connected to the vehicle controller.

[0007] Furthermore, several telescopic rods are installed at the corners of the decorative panel.

[0008] Furthermore, the surface of the decorative panel is provided with a polycarbonate composite film, and the inner layer of the decorative panel is an aluminum honeycomb core.

[0009] Furthermore, the decorative panel has silicone pads on its sides.

[0010] Furthermore, the connecting mechanism includes a slot and a claw. The slot is formed on the connecting seat, and the claw is fixed to the bottom of the decorative panel. The claw engages with the slot.

[0011] Furthermore, the connection mechanism also includes an electromagnet and a neodymium iron boron permanent magnet. The neodymium iron boron permanent magnet is installed at the bottom of the decorative panel, and the electromagnet is installed at the top of the connection seat. The electromagnet is magnetically connected to the neodymium iron boron permanent magnet, and the electromagnet is electrically connected to the vehicle controller.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This adaptive buffer type door anti-collision plate has the following advantages:

[0013] 1. Through the synergistic effect of memory alloy springs and silicone airbags, combined with real-time control of pressure sensors and vehicle controllers, it can automatically adjust the buffering force according to the collision intensity, providing gentle buffering in minor collisions and strong protection in severe collisions, effectively reducing the risk of door damage.

[0014] 2. It adopts a dual connection method of "mechanical snap-fit ​​+ magnetic adsorption" to ensure that the decorative panel is firmly connected during normal use and collision. At the same time, the controllable magnetic design of the electromagnet facilitates the quick installation and removal of the decorative panel. The decorative panel is detachably connected to the connecting seat through the connecting mechanism. It can be replaced separately after collision damage, without the need to replace the entire door component, which greatly reduces maintenance costs and time. Attached Figure Description

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

[0016] Figure 2 This is a schematic diagram of the three-dimensional bottom structure of this utility model;

[0017] Figure 3 This is a three-dimensional cross-sectional structural diagram of the present invention;

[0018] Figure 4 This utility model Figure 3 A magnified structural diagram at point A.

[0019] In the diagram: 1-Car door body, 2-Mounting slot, 3-Connecting mechanism, 31-Electromagnet, 32-Card slot, 33-Card claw, 34-NdFeB permanent magnet, 4-Silicone pad, 5-Decorative panel, 6-Polycarbonate composite film, 7-Connecting seat, 8-Miniature air pump, 9-Silicone airbag, 10-Memory alloy spring, 11-Telescopic rod, 12-Pressure sensor. Detailed Implementation

[0020] The present invention will be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.

[0021] Please see Figure 1-4 This embodiment provides a technical solution: an adaptive buffer type car door anti-collision plate, including a car door body (1) and a connecting seat (7). The car door body (1) is provided with a plurality of mounting slots (2). A plurality of telescopic rods (11) and a silicone airbag (9) are respectively installed on the inner side of the mounting slots (2). The ends of the plurality of telescopic rods (11) and the ends of the silicone airbag (9) are connected to the connecting seat (7). A pressure sensor (12) is installed at the connection between the connecting seat (7) and the silicone airbag (9). A sleeve is fitted on the telescopic rods (11). There is a memory alloy spring (10), which is set between the connecting seat (7) and the mounting groove (2). A miniature air pump (8) is installed on the side of the door body (1). The miniature air pump (8) is connected to the silicone airbag (9). The connecting seat (7) is detachably connected to a decorative panel (5) through a connecting mechanism (3). The decorative panel (5) is set in a hexagonal honeycomb structure. The hexagonal structure can effectively disperse the collision force and improve the overall protection performance. The pressure sensor (12) and the miniature air pump (8) are electrically connected to the vehicle controller.

[0022] After the connecting seat (7) is subjected to force, it transmits the force to the telescopic rod (11) and the silicone airbag (9) respectively. The memory alloy spring (10) on the telescopic rod (11) begins to compress after being subjected to pressure, and absorbs the collision energy through elastic deformation. At the same time, the telescopic rod (11) shortens as the spring is compressed, which plays a guiding role and ensures the stability of the buffering process.

[0023] The pressure sensor (12) detects the pressure signal transmitted from the connector (7) to the silicone airbag (9) in real time and transmits the signal to the vehicle controller. The vehicle controller determines the collision intensity based on the magnitude of the pressure signal.

[0024] When the impact force is small (e.g., <50N), the vehicle controller controls the micro air pump (8) to inflate the silicone airbag (9) with a small amount of gas (e.g., 30% inflation volume). The silicone airbag (9) expands to a certain extent and works with the memory alloy spring (10) to buffer the impact. At this time, the buffering force is relatively gentle.

[0025] When the impact force is moderate (e.g., 50-200N), the vehicle controller controls the micro air pump (8) to increase the inflation of the silicone airbag (9) (e.g., 60% inflation). The silicone airbag (9) expands further to provide greater cushioning force, and works together with the memory alloy spring (10) to enhance the cushioning effect.

[0026] When the impact force is large (e.g., >200N), the vehicle controller controls the micro air pump (8) to inflate the silicone airbag (9) to 100% capacity. The silicone airbag (9) provides the maximum cushioning force, while the memory alloy spring (10) is also compressed to a large extent. The two work together to absorb a large amount of impact energy.

[0027] After the collision, the shape memory alloy spring (10) returns to its initial state due to its shape memory properties, causing the telescopic rod (11) to extend and the connecting seat (7) to return to its original position. The vehicle controller controls the micro air pump (8) to expel the gas in the silicone airbag (9), so that the silicone airbag (9) also returns to its initial state, waiting for the response of the next collision.

[0028] Through the synergistic effect of the memory alloy spring (10) and the silicone airbag (9), combined with the real-time control of the pressure sensor (12) and the vehicle controller, it can automatically adjust the buffer force according to the collision intensity, providing gentle buffering in minor collisions and strong protection in severe collisions, effectively reducing the risk of door damage.

[0029] Several telescopic rods (11) are set at the corners of the decorative panel (5), which can effectively disperse the impact force and improve the overall protection performance.

[0030] The surface of the decorative panel (5) is provided with a polycarbonate composite film (6), and the inner layer of the decorative panel (5) is an aluminum honeycomb core. When the car door is subjected to an external collision, the collision force first acts on the surface layer of the polycarbonate composite film (6) of the decorative panel (5), and the surface layer transmits the force to the inner aluminum honeycomb core. The aluminum honeycomb core initially absorbs part of the collision energy through the deformation of its own structure. Subsequently, the remaining collision force is transmitted to the connecting seat (7) through the connecting mechanism (3).

[0031] The decorative panel (5) has a silicone pad (4) on its side. The silicone pad (4) is 0.5-1cm thick and made of elastic silicone. When adjacent decorative panels (5) come into contact with each other or when the decorative panel (5) comes into contact with external objects, it can play a role in buffering, shock absorption and noise reduction.

[0032] The connecting mechanism (3) includes a slot (32) and a claw (33). The slot (32) is opened on the connecting seat (7), and the claw (33) is fixed to the bottom of the decorative panel (5). The claw (33) and the slot (32) engage to form a mechanical connection. The connecting mechanism (3) also includes an electromagnet (31) and a neodymium iron boron permanent magnet (34). The neodymium iron boron permanent magnet (34) is installed at the bottom of the decorative panel (5), and the electromagnet (31) is installed at the top of the connecting seat (7). The electromagnet (31) and the neodymium iron boron permanent magnet (34) are magnetically connected. The electromagnet (31) is electrically connected to the vehicle controller. When the collision force is large (e.g., >200N), The vehicle controller will also increase the current passing through the electromagnet (31) to enhance the magnetic attraction between the electromagnet (31) and the neodymium iron boron permanent magnet (34), preventing the decorative panel (5) from falling off under strong impact force. It adopts a dual connection method of "mechanical snap-fit ​​+ magnetic adsorption" to ensure that the decorative panel (5) is firmly connected during normal use and collision. At the same time, the controllable magnetic design of the electromagnet (31) facilitates the quick installation and removal of the decorative panel (5). The decorative panel (5) is detachably connected to the connecting seat (7) through the connecting mechanism (3). It can be replaced separately after collision damage, without the need to replace the entire door component, which greatly reduces maintenance costs and time.

[0033] The working principle of the adaptive buffer type car door anti-collision plate provided by this utility model is as follows: When the car door is subjected to an external collision, the collision force first acts on the surface layer of the polycarbonate composite film (6) of the decorative panel (5), and the surface layer transmits the force to the inner aluminum honeycomb core. The aluminum honeycomb core initially absorbs part of the collision energy through the deformation of its own structure. Subsequently, the remaining collision force is transmitted to the connecting seat (7) through the connecting mechanism (3).

[0034] After the connecting seat (7) is subjected to force, it transmits the force to the telescopic rod (11) and the silicone airbag (9) respectively. The memory alloy spring (10) on the telescopic rod (11) begins to compress after being subjected to pressure, and absorbs the collision energy through elastic deformation. At the same time, the telescopic rod (11) shortens as the spring is compressed, which plays a guiding role and ensures the stability of the buffering process.

[0035] The pressure sensor (12) detects the pressure signal transmitted from the connector (7) to the silicone airbag (9) in real time and transmits the signal to the vehicle controller. The vehicle controller determines the collision intensity based on the magnitude of the pressure signal.

[0036] When the impact force is small (e.g., <50N), the vehicle controller controls the micro air pump (8) to inflate the silicone airbag (9) with a small amount of gas (e.g., 30% inflation volume). The silicone airbag (9) expands to a certain extent and works with the memory alloy spring (10) to buffer the impact. At this time, the buffering force is relatively gentle.

[0037] When the impact force is moderate (e.g., 50-200N), the vehicle controller controls the micro air pump (8) to increase the inflation of the silicone airbag (9) (e.g., 60% inflation). The silicone airbag (9) expands further to provide greater cushioning force, and works together with the memory alloy spring (10) to enhance the cushioning effect.

[0038] When the impact force is large (e.g., >200N), the vehicle controller controls the micro air pump (8) to inflate the silicone airbag (9) to 100% capacity. The silicone airbag (9) provides maximum cushioning force, while the memory alloy spring (10) is also compressed to a large extent. The two work together to absorb a large amount of impact energy. During this process, the vehicle controller also increases the current passing through the electromagnet (31) to enhance the magnetic attraction between the electromagnet (31) and the neodymium iron boron permanent magnet (34), preventing the decorative panel (5) from falling off under the strong impact force.

[0039] After the collision, the shape memory alloy spring (10) returns to its initial state due to its shape memory properties, causing the telescopic rod (11) to extend and the connecting seat (7) to return to its original position. The vehicle controller controls the micro air pump (8) to expel the gas in the silicone airbag (9), so that the silicone airbag (9) also returns to its initial state, waiting for the response of the next collision.

[0040] It is worth noting that the components disclosed in the above embodiments are all general standard parts or components known to those skilled in the art. Their structures and principles can be known by those skilled in the art through technical manuals or conventional experimental methods. Electromagnets (31), pressure sensors (12) and micro air pumps (8) are all products on the market. Their structures and principles are known technologies. This solution only describes their role in this solution and the technical effects to be produced. Drainage channels need to be set at the joint of the decorative panel (5) to form a grid-like drainage system similar to the guide groove of the car door glass. The drainage channels are continuously distributed along the length of the joint. The drainage channels of each joint are independent and interconnected, and finally converge to the drainage hole of the car door body (1) for discharge.

[0041] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances. For example, a rotary connection can refer to a rotary connection through a bearing.

[0042] The parts of this utility model not described in detail are prior art. Although this utility model has been specifically shown and introduced in conjunction with preferred embodiments, there are many methods and approaches to implement this technical solution. The above description is only a preferred embodiment of this utility model. However, those skilled in the art should understand that various changes in form and detail can be made to this utility model without departing from the spirit and scope of this utility model as defined by the appended claims, and all such changes shall be within the protection scope of this utility model.

Claims

1. An adaptive buffer-type door anti-collision plate, comprising a door body (1) and a connecting seat (7), characterized in that: The main body (1) of the car door is provided with several mounting slots (2). Several telescopic rods (11) and a silicone airbag (9) are installed on the inner side of the mounting slots (2). The ends of the telescopic rods (11) and the ends of the silicone airbag (9) are connected to the connecting seat (7). A pressure sensor (12) is installed at the connection between the connecting seat (7) and the silicone airbag (9). A memory alloy spring (10) is sleeved on the telescopic rod (11). The memory alloy spring (10) is set between the connecting seat (7) and the mounting slot (2). A micro air pump (8) is installed on the side of the main body (1). The micro air pump (8) is connected to the inside of the silicone airbag (9). The connecting seat (7) is detachably connected to a decorative panel (5) through a connecting mechanism (3). The decorative panel (5) is set in a hexagonal honeycomb structure. The pressure sensor (12) and the micro air pump (8) are electrically connected to the vehicle controller.

2. The adaptive buffer type door anti-collision plate according to claim 1, characterized in that: Several telescopic rods (11) are set at the corner positions corresponding to the decorative panel (5).

3. The adaptive buffer type door anti-collision plate according to claim 1, characterized in that: The surface of the decorative panel (5) is provided with a polycarbonate composite film (6), and the inner layer of the decorative panel (5) is an aluminum honeycomb core.

4. The adaptive buffer type door anti-collision plate according to claim 1, characterized in that: The decorative panel (5) has a silicone pad (4) on its side.

5. The adaptive buffer type door anti-collision plate according to claim 1, characterized in that: The connecting mechanism (3) includes a slot (32) and a claw (33). The slot (32) is opened on the connecting seat (7), and the claw (33) is fixed to the bottom of the decorative panel (5). The claw (33) and the slot (32) engage with each other.

6. The adaptive buffer type door anti-collision plate according to claim 1, characterized in that: The connecting mechanism (3) also includes an electromagnet (31) and a neodymium iron boron permanent magnet (34). The neodymium iron boron permanent magnet (34) is installed at the bottom of the decorative panel (5), and the electromagnet (31) is installed at the top of the connecting seat (7). The electromagnet (31) is magnetically connected to the neodymium iron boron permanent magnet (34), and the electromagnet (31) is electrically connected to the vehicle controller.

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