Impact protection structure integrated in door, door and vehicle

Abstract

The present invention relates to a collision protection structure integrated into a vehicle door, a vehicle door, and a vehicle. The vehicle door includes a door interior panel and a map pocket cover secured to the inner side of the door interior panel. The collision protection structure comprises: at least one cavity structure formed on the outer side of the door interior panel, each cavity structure comprising a chamber, a bottom opening formed in the door interior panel, communicating with the chamber, and a chamber top wall opposite the bottom opening; and a doghouse structure formed on the side of the map pocket cover facing the door interior panel and matching each cavity structure. The doghouse structure is configured to be inserted into the corresponding chamber through the bottom opening and to abut against the chamber top wall. By inserting the doghouse structure into the cavity structure and abutting against the cavity structure, the map pocket cover is prevented from excessive collapse, thereby providing a reliable collision protection structure for the vehicle door and vehicle. This eliminates the need for manufacturing a separate anti-collision foam block, thereby reducing the manufacturing costs of the vehicle door and vehicle.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, in particular to a collision protection structure integrated on a vehicle door, the vehicle door and the vehicle. Background Art

[0002] With the continuous improvement of living standards, automobiles have become one of the most important means of transportation. An automobile generally refers to a non-rail-borne vehicle with four or more wheels, powered by a power source (such as fuel, hybrid, or pure electric). Its primary functions include transportation, passenger transport, and transportation. Automobiles have brought convenience, comfort, and safety to people's travel, while also promoting industrial development, accelerating economic growth, and changing people's lifestyles.

[0003] With the widespread use of automobiles, road traffic accidents have become a major global problem, leading to an increasing emphasis on vehicle safety performance. Vehicle safety performance refers to the ability of a vehicle to avoid accidents and ensure the safety of pedestrians and passengers while driving. Good vehicle safety performance can often prevent accidents or reduce casualties. Side collisions are a common form of traffic accidents, but the buffer zone in side collisions is much smaller than in head-on collisions, posing a high risk of injury to passengers. Consequently, the safety protection structures used in vehicle doors are constantly being refined.

[0004] Currently, existing vehicles often incorporate foam blocks within the door interior panels. In the event of a side impact, the foam blocks compress and elastically deform to absorb the energy of the impact, thereby protecting the occupants. However, the production of these foam blocks often requires additional molds, increasing vehicle production costs. Furthermore, the foam blocks are typically welded to the door interior panels, increasing assembly time and reducing efficiency.

[0005] To reduce costs, existing technologies have developed a safety structure for automobile door interior panels that can replace foam blocks. Chinese utility model patent CN209426687U discloses a safety structure for automobile door interior panels. The mounting structure is integrally injection-molded with the map pocket and the voice coil, and uses a 2 / 3 circular arch column with a cavity inside. Because the mounting structure is located in the human pelvic area, when the vehicle is hit from the side, the circular cavity arch column structure on the door collapses to absorb the collision energy, thereby protecting the passengers. However, this cavity safety structure is prone to excessive collapse.

[0006] Therefore, this field needs a new technical solution to solve the above problems. Summary of the Invention

[0007] To address the aforementioned problems in the prior art, namely, the problem that cavity safety structures on automobile doors are prone to excessive crushing, the present invention provides a collision protection structure integrated into the vehicle door. The vehicle door includes a door interior panel and a map pocket cover secured to the inner side of the door interior panel. The collision protection structure comprises: at least one cavity structure formed on the outer side of the door interior panel, each cavity structure comprising a chamber, a bottom opening formed on the door interior panel and communicating with the chamber, and a chamber top wall opposite the bottom opening; and a doghouse structure formed on the side of the map pocket cover facing the door interior panel and matching each cavity structure. The doghouse structure is configured to be inserted into the corresponding chamber through the bottom opening and abut against the chamber top wall.

[0008] The collision protection structure integrated into a vehicle door according to the present invention includes at least one cavity structure and a doghouse structure associated with each cavity structure. Each cavity structure is formed on the exterior surface of the door interior panel and includes a chamber, a bottom opening formed in the door interior panel, and a chamber top wall opposite the bottom opening. A map pocket cover is secured to the interior surface of the door interior panel, and a doghouse structure is formed on the side of the map pocket cover facing the door interior panel. The doghouse structure can be inserted into the chamber through the bottom opening and abut against the chamber top wall. Therefore, when the map pocket cover is secured to the door interior panel, the doghouse structure is directly inserted into the chamber structure and abuts against the chamber top wall, forming a collision protection structure. In the event of a side impact, the doghouse structure supports the cavity structure from the inside, preventing excessive collapse of the cavity structure, thereby providing safer and more reliable protection for passengers. With such a collision protection structure, there is no need to provide a separate foam anti-collision block, thereby reducing the manufacturing costs of the vehicle door and the vehicle and improving the assembly efficiency of the vehicle door.

[0009] In the preferred technical solution of the collision protection structure integrated on the vehicle door, the cavity structure and the door interior panel are integrally formed. This configuration eliminates the need for a dedicated mold for the cavity structure, thereby reducing vehicle manufacturing costs.

[0010] In the preferred technical solution for the aforementioned collision protection structure integrated into a vehicle door, the cross-section of the cavity structure gradually decreases from the door interior panel to the cavity top wall, forming a conical shape. This conical design enhances the structural stability of the cavity structure and facilitates collapse into the cavity.

[0011] In the preferred technical solution for the aforementioned collision protection structure integrated into a vehicle door, the cavity structure includes four legs extending from the exterior side of the door interior panel to the four corners of the cavity's top wall, with spaces formed between adjacent legs. The design of these spacings between the legs allows for the cavity structure and the door interior panel to be integrally injection-molded, while also reducing the overall strength of the cavity structure to a certain extent, allowing it to preferentially collapse and absorb collision energy in the event of a side collision.

[0012] In the preferred technical solution for the aforementioned collision protection structure integrated into a vehicle door, the cross-section of each leg decreases gradually or in a stepped manner from the door interior panel to the cavity top wall. This arrangement enhances the stability of the cavity structure and gradually weakens the overall strength of the cavity structure from the interior panel to the cavity top wall, creating a stepped strength structure. In the event of a collision, the cavity collapses from the cavity top wall toward the cavity interior.

[0013] In the preferred technical solution of the aforementioned collision protection structure integrated into a vehicle door, the cavity top wall has a circumferential edge that curves toward the door interior panel and has rounded corners. This configuration optimizes the transition between the cavity top wall and the four legs, enhancing the stability of the cavity structure.

[0014] In the preferred technical solution of the above-mentioned collision protection structure integrated into the vehicle door, each doghouse structure is integrally formed with the map pocket cover. This arrangement eliminates the need for a dedicated mold for the doghouse structure, improves assembly efficiency, and reduces vehicle costs.

[0015] In the preferred technical solution of the above-mentioned collision protection structure integrated into a vehicle door, each kennel structure includes a kennel top wall and three supporting side walls extending from the map pocket cover to the kennel top wall and connected to each other. The three supporting side walls and the kennel top wall together define a kennel chamber. The kennel chamber includes a side opening, and the cross-section of the kennel chamber gradually decreases in the direction from the map pocket cover toward the kennel top wall. The design of the side opening allows the kennel structure and the map pocket cover to be integrally injection molded, and the overall conical shape enhances the stability of the kennel structure and facilitates its collapse into the interior of the kennel structure.

[0016] In the preferred embodiment of the aforementioned collision protection structure integrated into a vehicle door, the doghouse top wall is formed with a plurality of support ribs extending outwardly and perpendicularly thereto. These support ribs abut the inner surface of the chamber top wall. This arrangement enhances the strength and stability of the entire collision protection structure, providing support and cushioning for the vehicle door in the event of a side impact.

[0017] In the preferred technical solution of the collision protection structure integrated on the vehicle door, the number of the supporting ribs is four, and the four supporting ribs are connected to each other and form a square frame. This arrangement can enhance the strength and stability of the entire collision protection structure.

[0018] In the preferred technical solution for the aforementioned crash protection structure integrated into a vehicle door, two rib reinforcement ribs are provided at each corner of the frame, extending along the height of the frame and protruding outward. The two rib reinforcement ribs form a predetermined angle between them. The provision of these rib reinforcement ribs further enhances the strength of the supporting ribs, thereby increasing the strength and stability of the entire crash protection structure.

[0019] In the preferred technical solution of the collision protection structure integrated on the vehicle door, an additional reinforcing rib extending between two opposing supporting ribs is provided in the frame, thereby further enhancing the strength and stability of the entire collision protection structure.

[0020] In the preferred technical solution of the aforementioned collision protection structure integrated into a vehicle door, each supporting sidewall has a root portion connected to the map pocket cover, and the thickness of the root portion is thinner than the remaining portion of the supporting sidewall. This arrangement weakens the strength of the doghouse structure's sidewall root, creating a stepped strength structure that gradually increases from the sidewall root to the supporting ribs, thereby achieving crush energy absorption in the event of a collision.

[0021] In the preferred technical solution of the above-mentioned collision protection structure integrated on the vehicle door, internal reinforcement ribs are provided on the inner side of the top wall of the dog kennel facing the outer cover of the map pocket. Through the above-mentioned arrangement, the strength and stability of the dog kennel structure can be enhanced.

[0022] To address the aforementioned problems in the prior art, namely, the problem that the cavity safety structure in a conventional automobile door is prone to excessive crushing, the present invention further provides a vehicle door. The vehicle door includes a collision protection structure according to any of the above items. The vehicle door of the present invention not only meets collision safety requirements but also eliminates the need for separate design and dedicated molds for foam blocks, and eliminates the need for additional processes to assemble the collision protection structure, thereby reducing vehicle manufacturing costs and improving assembly efficiency.

[0023] To address the aforementioned problem in the prior art, namely, the problem that the cavity safety structure in a conventional automobile door is prone to excessive crushing, the present invention further provides a vehicle. The vehicle includes the aforementioned door. By employing the vehicle of the present invention, not only can automobile collision safety requirements be met, but the manufacturing cost of the vehicle can also be reduced.

[0024] Solution 1. A collision protection structure integrated into a vehicle door, characterized in that the vehicle door includes a door interior panel and a map pocket cover fixed to the inner side of the door interior panel, the collision protection structure comprising:

[0025] at least one cavity structure formed on an outer side of the door interior panel, each cavity structure including a chamber, a bottom opening communicating with the chamber and formed on the door interior panel, and a chamber top wall opposite to the bottom opening; and

[0026] A doghouse structure is formed on the side of the map pocket cover facing the door interior panel and matches each of the cavity structures. The doghouse structure is configured to be inserted into the corresponding cavity through the bottom opening and abut against the cavity top wall.

[0027] Solution 2. The collision protection structure integrated into a vehicle door according to Solution 1, wherein the cavity structure is integrally formed with the vehicle door interior trim panel.

[0028] Solution 3. The collision protection structure integrated into the vehicle door according to Solution 1 or 2 is characterized in that the cross-section of the cavity structure gradually decreases along the direction from the vehicle door interior panel to the cavity top wall to form a conical cone shape.

[0029] Solution 4. The door-integrated collision protection structure of Solution 3, wherein the cavity structure includes four legs extending from the exterior side of the door interior panel to the four corners of the cavity top wall, with spaces formed between adjacent legs.

[0030] Solution 5. The collision protection structure integrated into a vehicle door according to Solution 4 is characterized in that the cross-section of each of the legs decreases gradually or stepwise along a direction from the vehicle door interior panel to the cavity top wall.

[0031] Solution 6. The collision protection structure integrated into a vehicle door according to Solution 1 or 2, wherein the chamber top wall has a circumferential edge that is curved toward the door interior panel and has rounded corners.

[0032] Solution 7. The collision protection structure integrated into a vehicle door according to Solution 1 or 2, wherein each of the doghouse structures is integrally formed with the map pocket cover.

[0033] Solution 8. The door-integrated collision protection structure according to Solution 7, characterized in that each doghouse structure includes a doghouse top wall and three supporting side walls extending from the map pocket cover to the doghouse top wall and connected to each other, the three supporting side walls and the doghouse top wall together enclosing a doghouse chamber, the doghouse chamber including a side opening, and a cross-section of the doghouse chamber gradually decreasing in a direction from the map pocket cover toward the doghouse top wall.

[0034] Solution 9. The vehicle door-integrated collision protection structure according to Solution 8, wherein a plurality of supporting ribs are formed on the top wall of the doghouse and extend outwardly perpendicular to the top wall of the doghouse, and the plurality of supporting ribs abut against the inner surface of the top wall of the chamber.

[0035] Solution 10. The collision protection structure integrated into a vehicle door according to Solution 9, wherein the number of the supporting rib walls is four, and the four supporting rib walls are connected to each other and form a square frame.

[0036] Solution 11. The door-integrated collision protection structure according to Solution 10, wherein two rib reinforcement ribs extending along the height of the frame and protruding outward are provided at each corner of the frame, with a predetermined angle formed between the two rib reinforcement ribs.

[0037] Solution 12: The collision protection structure integrated into a vehicle door according to Solution 10, wherein an additional reinforcing rib wall is provided in the frame and extends between two opposing supporting rib walls.

[0038] Solution 13. The collision protection structure integrated into the vehicle door according to Solution 8 is characterized in that each of the supporting side walls has a root portion connected to the map pocket outer cover, and the thickness of the root portion is smaller than the thickness of the remaining portion of the supporting side wall.

[0039] Solution 14. The collision protection structure integrated into the vehicle door according to Solution 8 is characterized in that an internal reinforcement rib is provided on the inner side of the dog kennel top wall facing the map pocket outer cover.

[0040] Solution 15. A vehicle door, characterized in that the vehicle door includes the collision protection structure according to any one of Solutions 1 to 14.

[0041] Solution 16. A vehicle, characterized in that the vehicle includes the door of Solution 15. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

[0043] Figure 1It is an exploded view of the local structure of an embodiment of a vehicle door of the present invention;

[0044] Figure 2 1 is a schematic diagram of the partial structural assembly of an embodiment of a vehicle door of the present invention;

[0045] Figure 3 1 is a schematic structural diagram of an embodiment of a cavity structure in a collision protection structure of the present invention;

[0046] Figure 4 1. It is a structural schematic diagram of an embodiment of a doghouse structure in a collision protection structure of the present invention;

[0047] Figure 5 is an assembly diagram of an embodiment of a collision protection structure of the present invention;

[0048] Figure 6 The embodiment of the collision protection structure of the present invention is along Figure 5 A cross-sectional view is obtained along the AA section line shown.

[0049] List of reference numerals:

[0050] Vehicle door; 10. Impact protection structure; 11. Door interior panel; 12. Map pocket cover; 111. Cavity structure; 1111. Chamber; 1112. Bottom opening; 1113. Chamber top wall; 1114. Support foot; 1115. Circumferential edge; 112. Inner side of vehicle door interior panel; 113. Outer side of vehicle door interior panel; 114. Mounting hole; 115. Outer edge of vehicle door interior panel; 121. Doghouse structure; 1211. Doghouse top wall; 1212. Support side wall; 12121. Side wall root; 1213. Doghouse chamber; 1214. Side opening; 1215. Support rib wall; 1216. Rib wall reinforcement; 1217. Internal reinforcement rib; 122. Inner side of map pocket cover; 123. Welding column; 124. Outer edge of map pocket cover. DETAILED DESCRIPTION

[0051] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0052] It should be noted that in the description of the present invention, terms such as "upper," "lower," "left," "right," "inner," and "outer" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. These terms are used solely for ease of description and are not intended to indicate or imply that the device or component described must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0053] Furthermore, it should be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0054] To address the problem of excessive collapse of cavity safety structures in conventional automobile doors, the present invention provides a collision protection structure integrated into a vehicle door 1. The vehicle door 1 includes a door interior panel 11 and a map pocket cover 12 fixed to an inner side 112 of the door interior panel. The collision protection structure 10 includes: at least one cavity structure 111, wherein the at least one cavity structure 111 is formed on the outer side surface 113 of the vehicle door interior panel, and each of the cavity structures 111 includes a chamber 1111, a bottom opening 1112 connected to the chamber 1111 and formed on the vehicle door interior panel 11, and a chamber top wall 1113 opposite to the bottom opening 1112; and a doghouse structure 121, wherein the doghouse structure 121 is formed on the side of the map pocket outer cover 12 facing the vehicle door interior panel 11 and matches each of the cavity structures 111, and the doghouse structure 121 is configured to be inserted into the corresponding chamber 1111 through the bottom opening 1112 and abut against the chamber top wall 1113.

[0055] In one or more embodiments, the vehicle of the present invention (not shown) is a pure electric vehicle. Alternatively, the vehicle may be a gasoline-powered vehicle, a hybrid vehicle, or another suitable vehicle. The vehicle includes a door 1. The door 1 includes, but is not limited to, a door exterior panel, a door reinforcement beam, a door window frame, a door interior panel 11, and a map pocket cover 12. The door interior panel 11 is secured to the inside of the door 1, while the map pocket cover 12 is secured to the inside surface 112 of the door interior panel, for example, by welding or screws. The map pocket cover 12 is located near the pelvic region of the human body. Providing a collision protection structure 10 at or near the location of the map pocket cover 12 can prevent or reduce intrusion of the door trim armrest into the human body during a collision, thereby effectively protecting passengers.

[0056] Figure 1 1 is a partial exploded schematic diagram of the structure of a vehicle door according to an embodiment of the present invention. Figure 2 FIG. 1 is a schematic diagram of the partial structure assembly of an embodiment of a vehicle door of the present invention. Figure 1 and Figure 2As shown, the vehicle door 1 includes a door interior panel 11, a map pocket cover 12, and two collision protection structures 10 integrated into the vehicle door 1. Alternatively, depending on actual needs, the vehicle door 1 may be provided with only one or more collision protection structures. Obviously, the greater the number of collision protection structures 10, the higher the impact resistance of the vehicle door 1. In one or more embodiments, the vehicle door interior panel 11 and the map pocket cover 12 are both manufactured using a plastic injection molding process. The vehicle door interior panel 11 has an outer surface 113 (based on Figure 1 The orientation shown is the upper side of the door interior panel 11) and the opposite inner side 112 (based on Figure 1 The map pocket cover 12 is secured to the inner side 112 of the door interior panel 11 by welding. Specifically, the door interior panel 11 is provided with a plurality of mounting holes 114 extending through its thickness, and a welding post 123 is provided on the inner side 122 of the map pocket cover 12, each corresponding to each mounting hole 114. In one or more embodiments, the welding posts 123 are integrally injection molded with the map pocket cover 12. Alternatively, the welding posts 123 may be separately manufactured and secured to the inner side 122 of the map pocket cover 12 by welding. Each welding post 123 extends perpendicularly from the inner side 122 of the map pocket cover 12 toward the door interior panel 11. Each welding post 123 may pass through a corresponding mounting hole 114 and extend to the outer side 113 of the door interior panel 11. When the map pocket cover 12 is assembled on the door interior panel 11, the map pocket cover 12 and the door interior panel 11 are fixed to each other by welding the welding posts 123 to the mounting holes 114. Alternatively, the map pocket cover 12 can be fixed to the inner side 112 of the door interior panel 11 by screwing. Figure 1 and Figure 2 As shown, when the map pocket outer cover 12 and the vehicle door interior panel 11 are assembled together, the outer edge 115 of the map pocket outer cover 12 is tightly against the outer edge 124 of the vehicle door interior panel 11 .

[0057] like Figure 1 and Figure 2 As shown, each impact protection structure 10 integrated into a vehicle door 1 according to the present invention comprises a cavity structure 111 and a doghouse structure 121 that cooperate with each other. The cavity structure 111 is formed on the exterior side 113 of the door interior panel and is integrally formed with the door interior panel 11. The doghouse structure 121 is formed on the interior side 122 of the map pocket cover and is integrally formed with the map pocket cover 12. This eliminates the need for a dedicated mold for the impact protection structure, reducing vehicle manufacturing costs.

[0058] Figure 3 FIG. 1 is a schematic structural diagram of an embodiment of the cavity structure in the collision protection structure of the present invention. Figure 3As shown, in one or more embodiments, the cavity structure 111 includes a chamber 1111, a bottom opening 1112, a chamber top wall 1113, legs 1114, and a peripheral edge 1115. Figure 3 As shown, a bottom opening 1112 is formed in the door trim panel 11 and extends through the thickness of the panel, namely, from the inner side 112 to the outer side 113 of the panel. The bases of four legs 1114 are distributed around the bottom opening 1112 and located at its four corners. Each leg 1114 extends outward at a certain angle from the outer side 113 of the door trim panel to the cavity top wall 1113. Together with the cavity top wall 1113, they enclose the cavity 1111 and form a tapered conical shape with a cross-section that gradually decreases from the outer side 113 of the door trim panel to the cavity top wall 1113. This tapered conical shape not only ensures the strength and stability of the cavity structure 111 itself, but also creates a stepped strength pattern that gradually decreases from the cavity top wall 1113 to the door trim panel 11. Therefore, when a side collision occurs, the cavity structure 111 collapses from the cavity top wall 1113 to the interior of the cavity, thereby absorbing the collision energy. Spaces are formed between adjacent legs 1114 to weaken the base, thereby reducing the overall strength of the cavity structure 111, so that the cavity structure 111 can collapse first when the vehicle is involved in a side collision. Figure 3 As shown, the cross section of each leg 1114 decreases in a step-like manner along the outer side surface 113 of the door interior panel toward the cavity top wall 1113. Alternatively, the cross section of the leg 1114 may also be gradually reduced or remain unchanged. Figure 3 As shown, the cavity top wall 1113 has a circumferential edge 1115 that is curved and rounded toward the door interior panel 11. The circumferential edge 1115 is connected to four legs 1114 at the four corners of the cavity top wall 1113 to optimize the transition between the cavity top wall 1113 and the four legs 1114, and also optimize the overall structure.

[0059] In alternative embodiments, the four legs 1114 may extend vertically outward from the exterior side 113 of the door interior panel to the cavity top wall 1113, thereby forming a right prism-shaped cavity structure 111. In one or more embodiments, adjacent legs 1114 may be spaced apart to form a zero distance, meaning that the cavity structure 111 is a conical structure with only one opening (bottom opening 1112). Alternatively, the cavity structure 111 may be a cylinder, a frustum, or the like.

[0060] Figure 4The figure is a schematic diagram of an embodiment of a doghouse structure in a collision protection structure according to the present invention. In one or more embodiments, the doghouse structure 121 includes a doghouse top wall 1211, supporting side walls 1212, a sidewall root 12121, a doghouse chamber 1213, a side opening 1214, supporting ribs 1215, rib reinforcement ribs 1216, and internal reinforcement ribs 1217. The three supporting side walls 1212 are connected to each other and extend outward at an angle from the inner side 122 of the map pocket cover to the doghouse top wall 1211. Together with the doghouse top wall 1211, the three supporting side walls 1212 enclose a doghouse chamber 1213 with a side opening 1214, forming a tapered structure with a cross-section that gradually decreases from the inner side 122 of the map pocket cover toward the doghouse top wall 1211. The side opening 1214 ensures that the doghouse structure 121 can be integrally injection-molded with the map pocket cover 12 on the inner side 122 of the map pocket cover. The supporting side wall 1212 has a side wall root portion 12121 connected to the inner side surface 122 of the map pocket cover. The thickness of the side wall root portion 12121 is set to be smaller than the thickness of the remaining portion of the supporting side wall 1212. Alternatively, one or more rows of small holes can be opened in the side wall root portion 12121 in a direction parallel to the doghouse top wall 1211, so that the strength of the side wall root portion 12121 is smaller than the strength of the remaining portion of the supporting side wall 1212. Figure 4 As shown, an internal reinforcing rib 1217 is provided on the inner surface of the doghouse top wall 1211. Alternatively, a plurality of internal reinforcing ribs can be provided on the inner surface of the doghouse top wall 1211. Figure 4 The doghouse structure 121 is designed as a conical structure and is provided with internal reinforcement ribs 1217, rib reinforcement ribs 1216, etc., which first ensure the strength and stability of the doghouse structure 121 itself. Furthermore, the doghouse structure 121 as a whole forms a stepped strength that gradually increases from the side wall root 12121 to the support ribs 1215. In the event of a side collision, the doghouse structure 121 can gradually collapse from the most vulnerable side wall root 12121, thereby absorbing the collision energy and protecting the occupants in the vehicle.

[0061] In an alternative embodiment, three supporting sidewalls 1212 may extend perpendicularly outward from the inner side 122 of the map pocket cover to the doghouse top wall 1211, and together with the doghouse top wall 1211, they may enclose a doghouse chamber 1213 with a side opening 1214, forming a right prism structure. Alternatively, a single curved supporting sidewall 1212 may enclose the doghouse chamber 1213 with the doghouse top wall 1211, forming a cylindrical or truncated cone structure. Alternatively, two planar supporting sidewalls 1212 and one curved supporting sidewall 1212 may also enclose the doghouse chamber 1213 with a side opening 1214, together with the fan-shaped doghouse top wall 1211.

[0062] In an alternative embodiment, the internal reinforcing rib 1217 of the doghouse chamber 1213 may also be formed between two opposing supporting side walls 1212, with both ends fixed to the inner sides of the two opposing supporting side walls 1212. Furthermore, another internal reinforcing rib 1217 may extend from the middle of the internal reinforcing rib 1217 between the two supporting side walls 1212 toward the doghouse top wall 1211, forming an inverted "T" shape to enhance the overall strength and stability of the doghouse structure 121.

[0063] In an alternative embodiment, additional reinforcing ribs may be added within the frame formed by the supporting ribs 1215 and between two opposing supporting ribs 1215 to form a "sun" structure, a "field" structure, etc., to further enhance the strength of the supporting structure.

[0064] Figure 5 1 is a schematic diagram of the assembly of an embodiment of the collision protection structure of the present invention. Figure 6 The embodiment of the collision protection structure of the present invention is along Figure 5 The cross-sectional view is obtained by the AA section line shown. Figure 5 and Figure 6 As shown, when the map pocket cover 12 is assembled onto the door interior panel 11, the doghouse structure 121 on the map pocket cover 12 is inserted into the cavity 1111 through the bottom opening 1112 of the cavity structure 111 and abuts against the cavity top wall 1113, thereby forming the collision protection structure 10. More specifically, the support ribs 1215 of the doghouse structure 121 abut against the cavity top wall 1113. During a collision, the cavity structure 111 tends to collapse inward. The doghouse structure 121 supports the cavity structure 111 from the inside, preventing excessive collapse. When the collision energy exceeds the tolerance limit of the doghouse structure 121, the doghouse structure 121 collapses from the sidewall base 12121 toward the cavity top wall 1113. Simultaneously, the cavity structure 111 collapses from the cavity top wall 1113 toward the door interior panel 11. The entire collision protection structure absorbs the collision energy through collapse, thereby protecting the vehicle occupants.

[0065] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. A collision protection structure integrated on a vehicle door, characterized in that: The vehicle door includes a door interior panel and a map pocket outer cover fixed to the inner side of the door interior panel, and the collision protection structure includes: at least one cavity structure formed on an outer side of the door interior panel, each cavity structure including a chamber, a bottom opening communicating with the chamber and formed on the door interior panel, and a chamber top wall opposite to the bottom opening; and a doghouse structure formed on a side of the map pocket cover facing the door interior panel and matching each of the cavity structures, and configured to be inserted into the corresponding cavity through the bottom opening and abut against the cavity top wall; Each of the dog kennel structures includes a dog kennel top wall and three supporting side walls extending from the map pocket cover to the dog kennel top wall and connected to each other, the three supporting side walls and the dog kennel top wall together enclosing a dog kennel chamber, the dog kennel chamber including a side opening, and a cross-section of the dog kennel chamber gradually narrowing in a direction from the map pocket cover toward the dog kennel top wall; A plurality of supporting ribs are formed on the top wall of the doghouse and extend outward perpendicularly to the top wall of the doghouse, and the plurality of supporting ribs abut against the inner surface of the top wall of the chamber; There are four supporting ribs, which are connected to each other and form a square frame. Each of the supporting side walls has a root portion connected to the map pocket outer cover, and the thickness of the root portion is less than the thickness of the remaining portion of the supporting side wall; Each of the doghouse structures is integrally formed with the map pocket outer cover.

2. The collision protection structure integrated into the vehicle door according to claim 1, characterized in that: The cavity structure is integrally formed with the vehicle door interior trim panel.

3. The collision protection structure integrated into a vehicle door according to claim 1 or 2, characterized in that: The cross-section of the cavity structure gradually decreases in a direction from the door interior panel to the cavity top wall to form a tapered cone shape.

4. The collision protection structure integrated into the vehicle door according to claim 3, characterized in that: The cavity structure includes four supporting legs respectively extending from the outer side surface of the vehicle door interior panel to the four corners of the cavity top wall, and space intervals are formed between adjacent supporting legs.

5. The collision protection structure integrated into a vehicle door according to claim 4, characterized in that: The cross section of each of the supporting legs decreases gradually or stepwise along a direction from the door interior trim panel to the cavity top wall.

6. The collision protection structure integrated into a vehicle door according to claim 1 or 2, characterized in that: The cavity top wall has a circumferential edge that is curved toward the door interior panel and has rounded corners.

7. The collision protection structure integrated into a vehicle door according to claim 1, characterized in that: Two rib wall reinforcement ribs extending along the height of the frame and protruding outward are provided at each corner of the frame, and a predetermined angle is formed between the two rib wall reinforcement ribs.

8. The collision protection structure integrated into a vehicle door according to claim 1, characterized in that: An additional reinforcing rib wall is provided in the frame and extends between two opposite supporting rib walls.

9. The collision protection structure integrated into a vehicle door according to claim 1, characterized in that: Internal reinforcing ribs are provided on the inner side surface of the top wall of the doghouse facing the outer cover of the map pocket.

10. A vehicle door, characterized in that: The vehicle door comprises the collision protection structure according to any one of claims 1-9.

11. A vehicle, characterized in that: The vehicle includes the door of claim 10 .

Images